diff --git a/Doxyfile b/Doxyfile
index b52216e..24ceb58 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -31,7 +31,7 @@
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.8.6
+PROJECT_NUMBER         = 0.7.6
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
diff --git a/RELEASE b/RELEASE
index 7fc2521..c006218 100644
--- a/RELEASE
+++ b/RELEASE
@@ -1 +1 @@
-0.8.6
+0.7.6
diff --git a/VERSION b/VERSION
index 7fc2521..c006218 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.8.6
+0.7.6
diff --git a/doc/RELEASE_NOTES b/doc/RELEASE_NOTES
index 7861bfd..536ef39 100644
--- a/doc/RELEASE_NOTES
+++ b/doc/RELEASE_NOTES
@@ -2,7 +2,7 @@
 =============
 
 * 0.8 "Love"  June, 2011
-* 0.7 "Peace" June, 2011 (identical to 0.8 but using 0.6 ABI/API)
+* 0.7.1 "Peace" June, 2011 (identical to 0.8 but using 0.6 ABI/API)
 
 
 General notes
diff --git a/doc/examples/muxing-example.c b/doc/examples/muxing-example.c
index f068e94..a1f19a4 100644
--- a/doc/examples/muxing-example.c
+++ b/doc/examples/muxing-example.c
@@ -479,7 +479,7 @@
 
     /* open the output file, if needed */
     if (!(fmt->flags & AVFMT_NOFILE)) {
-        if (avio_open(&oc->pb, filename, AVIO_FLAG_WRITE) < 0) {
+        if (avio_open(&oc->pb, filename, AVIO_WRONLY) < 0) {
             fprintf(stderr, "Could not open '%s'\n", filename);
             exit(1);
         }
diff --git a/ffmpeg.c b/ffmpeg.c
index 29a337a..a913485 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -31,7 +31,7 @@
 #include "libavformat/avformat.h"
 #include "libavdevice/avdevice.h"
 #include "libswscale/swscale.h"
-#include "libavutil/opt.h"
+#include "libavcodec/opt.h"
 #include "libavcodec/audioconvert.h"
 #include "libavutil/audioconvert.h"
 #include "libavutil/parseutils.h"
@@ -113,7 +113,9 @@
 static const OptionDef options[];
 
 #define MAX_FILES 100
+#if !FF_API_MAX_STREAMS
 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
+#endif
 
 static const char *last_asked_format = NULL;
 static int64_t input_files_ts_offset[MAX_FILES];
@@ -712,7 +714,6 @@
         return err;
     /* copy stream format */
     s->nb_streams = 0;
-    s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
     for(i=0;i<ic->nb_streams;i++) {
         AVStream *st;
         AVCodec *codec;
@@ -3957,7 +3958,7 @@
     /* check filename in case of an image number is expected */
     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
         if (!av_filename_number_test(oc->filename)) {
-            print_error(oc->filename, AVERROR(EINVAL));
+            print_error(oc->filename, AVERROR_NUMEXPECTED);
             ffmpeg_exit(1);
         }
     }
@@ -3968,7 +3969,7 @@
             (strchr(filename, ':') == NULL ||
              filename[1] == ':' ||
              av_strstart(filename, "file:", NULL))) {
-            if (avio_check(filename, 0) == 0) {
+            if (url_exist(filename)) {
                 if (!using_stdin) {
                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
                     fflush(stderr);
@@ -3985,7 +3986,7 @@
         }
 
         /* open the file */
-        if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
+        if ((err = avio_open(&oc->pb, filename, AVIO_WRONLY)) < 0) {
             print_error(filename, err);
             ffmpeg_exit(1);
         }
diff --git a/ffplay.c b/ffplay.c
index 6ac8f34..2c4bafc 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -35,7 +35,7 @@
 #include "libavdevice/avdevice.h"
 #include "libswscale/swscale.h"
 #include "libavcodec/audioconvert.h"
-#include "libavutil/opt.h"
+#include "libavcodec/opt.h"
 #include "libavcodec/avfft.h"
 
 #if CONFIG_AVFILTER
diff --git a/ffprobe.c b/ffprobe.c
index fdcdf70..ae97253 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -23,7 +23,7 @@
 
 #include "libavformat/avformat.h"
 #include "libavcodec/avcodec.h"
-#include "libavutil/opt.h"
+#include "libavcodec/opt.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/dict.h"
 #include "libavdevice/avdevice.h"
diff --git a/ffserver.c b/ffserver.c
index 83dd986..2aa778f 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -39,7 +39,7 @@
 #include "libavutil/dict.h"
 #include "libavutil/random_seed.h"
 #include "libavutil/parseutils.h"
-#include "libavutil/opt.h"
+#include "libavcodec/opt.h"
 #include <stdarg.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -94,7 +94,9 @@
     "RTSP_SEND_PACKET",
 };
 
+#if !FF_API_MAX_STREAMS
 #define MAX_STREAMS 20
+#endif
 
 #define IOBUFFER_INIT_SIZE 8192
 
@@ -2229,11 +2231,11 @@
         av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
         av_dict_set(&c->fmt_ctx.metadata, "title"    , c->stream->title    , 0);
 
-        c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
-
         for(i=0;i<c->stream->nb_streams;i++) {
+            AVStream *st;
             AVStream *src;
-            c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
+            st = av_mallocz(sizeof(AVStream));
+            c->fmt_ctx.streams[i] = st;
             /* if file or feed, then just take streams from FFStream struct */
             if (!c->stream->feed ||
                 c->stream->feed == c->stream)
@@ -2241,9 +2243,9 @@
             else
                 src = c->stream->feed->streams[c->stream->feed_streams[i]];
 
-            *(c->fmt_ctx.streams[i]) = *src;
-            c->fmt_ctx.streams[i]->priv_data = 0;
-            c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
+            *st = *src;
+            st->priv_data = 0;
+            st->codec->frame_number = 0; /* XXX: should be done in
                                            AVStream, not in codec */
         }
         /* set output format parameters */
@@ -2941,9 +2943,11 @@
         snprintf(avc->filename, 1024, "rtp://0.0.0.0");
     }
 
+#if !FF_API_MAX_STREAMS
     if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
         !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
         goto sdp_done;
+#endif
     if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
         !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
         goto sdp_done;
@@ -2956,8 +2960,10 @@
     av_sdp_create(&avc, 1, *pbuffer, 2048);
 
  sdp_done:
+#if !FF_API_MAX_STREAMS
     av_free(avc->streams);
-    av_dict_free(&avc->metadata);
+#endif
+    av_metadata_free(&avc->metadata);
     av_free(avc);
     av_free(avs);
 
@@ -3385,9 +3391,6 @@
     if (!st)
         goto fail;
     ctx->nb_streams = 1;
-    ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
-    if (!ctx->streams)
-      goto fail;
     ctx->streams[0] = st;
 
     if (!c->stream->feed ||
@@ -3421,7 +3424,7 @@
                      "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
         }
 
-        if (url_open(&h, ctx->filename, AVIO_FLAG_WRITE) < 0)
+        if (url_open(&h, ctx->filename, AVIO_WRONLY) < 0)
             goto fail;
         c->rtp_handles[stream_index] = h;
         max_packet_size = url_get_max_packet_size(h);
@@ -3674,7 +3677,7 @@
     for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
         int fd;
 
-        if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
+        if (url_exist(feed->feed_filename)) {
             /* See if it matches */
             AVFormatContext *s = NULL;
             int matches = 0;
@@ -3747,7 +3750,7 @@
                 unlink(feed->feed_filename);
             }
         }
-        if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
+        if (!url_exist(feed->feed_filename)) {
             AVFormatContext s1 = {0}, *s = &s1;
 
             if (feed->readonly) {
@@ -3757,15 +3760,20 @@
             }
 
             /* only write the header of the ffm file */
-            if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
+            if (avio_open(&s->pb, feed->feed_filename, AVIO_WRONLY) < 0) {
                 http_log("Could not open output feed file '%s'\n",
                          feed->feed_filename);
                 exit(1);
             }
             s->oformat = feed->fmt;
             s->nb_streams = feed->nb_streams;
-            s->streams = feed->streams;
-            if (avformat_write_header(s, NULL) < 0) {
+            for(i=0;i<s->nb_streams;i++) {
+                AVStream *st;
+                st = feed->streams[i];
+                s->streams[i] = st;
+            }
+            av_set_parameters(s, NULL);
+            if (av_write_header(s) < 0) {
                 http_log("Container doesn't supports the required parameters\n");
                 exit(1);
             }
diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c
index 832298b..390ce8f 100644
--- a/libavcodec/8bps.c
+++ b/libavcodec/8bps.c
@@ -50,8 +50,6 @@
 
         unsigned char planes;
         unsigned char planemap[4];
-
-        uint32_t pal[256];
 } EightBpsContext;
 
 
@@ -131,16 +129,13 @@
                 }
         }
 
-        if (avctx->bits_per_coded_sample <= 8) {
-                const uint8_t *pal = av_packet_get_side_data(avpkt,
-                                                             AV_PKT_DATA_PALETTE,
-                                                             NULL);
-                if (pal) {
+        if (avctx->palctrl) {
+                memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
+                if (avctx->palctrl->palette_changed) {
                         c->pic.palette_has_changed = 1;
-                        memcpy(c->pal, pal, AVPALETTE_SIZE);
-                }
-
-                memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
+                        avctx->palctrl->palette_changed = 0;
+                } else
+                        c->pic.palette_has_changed = 0;
         }
 
         *data_size = sizeof(AVFrame);
@@ -170,6 +165,10 @@
                         avctx->pix_fmt = PIX_FMT_PAL8;
                         c->planes = 1;
                         c->planemap[0] = 0; // 1st plane is palette indexes
+                        if (avctx->palctrl == NULL) {
+                                av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n");
+                                return -1;
+                        }
                         break;
                 case 24:
                         avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24);
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 5c6bedc..e30be95 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -15,6 +15,7 @@
        fmtconvert.o                                                     \
        imgconvert.o                                                     \
        jrevdct.o                                                        \
+       opt.o                                                            \
        options.o                                                        \
        parser.o                                                         \
        raw.o                                                            \
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 6048f20..198d01d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -33,6 +33,12 @@
 
 #include "libavcodec/version.h"
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+#   define FF_INTERNALC_MEM_TYPE unsigned int
+#else
+#   define FF_INTERNALC_MEM_TYPE size_t
+#endif
+
 /**
  * Identify the syntax and semantics of the bitstream.
  * The principle is roughly:
@@ -111,6 +117,9 @@
     CODEC_ID_QDRAW,
     CODEC_ID_VIXL,
     CODEC_ID_QPEG,
+#if LIBAVCODEC_VERSION_MAJOR < 53
+    CODEC_ID_XVID,
+#endif
     CODEC_ID_PNG,
     CODEC_ID_PPM,
     CODEC_ID_PBM,
@@ -359,6 +368,18 @@
     CODEC_ID_FFMETADATA=0x21000,   ///< Dummy codec for streams containing only metadata information.
 };
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+#define CodecType AVMediaType
+
+#define CODEC_TYPE_UNKNOWN    AVMEDIA_TYPE_UNKNOWN
+#define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
+#define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
+#define CODEC_TYPE_DATA       AVMEDIA_TYPE_DATA
+#define CODEC_TYPE_SUBTITLE   AVMEDIA_TYPE_SUBTITLE
+#define CODEC_TYPE_ATTACHMENT AVMEDIA_TYPE_ATTACHMENT
+#define CODEC_TYPE_NB         AVMEDIA_TYPE_NB
+#endif
+
 #if FF_API_OLD_SAMPLE_FMT
 #define SampleFormat AVSampleFormat
 
@@ -1070,10 +1091,6 @@
 #define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
 #define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
 
-enum AVPacketSideDataType {
-    AV_PKT_DATA_PALETTE,
-};
-
 typedef struct AVPacket {
     /**
      * Presentation timestamp in AVStream->time_base units; the time at which
@@ -1096,17 +1113,6 @@
     int   stream_index;
     int   flags;
     /**
-     * Additional packet data that can be provided by the container.
-     * Packet can contain several types of side information.
-     */
-    struct {
-        uint8_t *data;
-        int      size;
-        enum AVPacketSideDataType type;
-    } *side_data;
-    int side_data_elems;
-
-    /**
      * Duration of this packet in AVStream->time_base units, 0 if unknown.
      * Equals next_pts - this_pts in presentation order.
      */
@@ -1135,6 +1141,9 @@
     int64_t convergence_duration;
 } AVPacket;
 #define AV_PKT_FLAG_KEY   0x0001
+#if LIBAVCODEC_VERSION_MAJOR < 53
+#define PKT_FLAG_KEY AV_PKT_FLAG_KEY
+#endif
 
 /**
  * Audio Video Frame.
@@ -1255,6 +1264,16 @@
      */
     enum PixelFormat pix_fmt;
 
+#if FF_API_RATE_EMU
+    /**
+     * Frame rate emulation. If not zero, the lower layer (i.e. format handler)
+     * has to read frames at native frame rate.
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    attribute_deprecated int rate_emu;
+#endif
+
     /**
      * If non NULL, 'draw_horiz_band' is called by the libavcodec
      * decoder to draw a horizontal band. It improves cache usage. Not
@@ -1299,6 +1318,9 @@
      */
     int frame_size;
     int frame_number;   ///< audio or video frame number
+#if LIBAVCODEC_VERSION_MAJOR < 53
+    int real_pict_num;  ///< Returns the real picture number of previous encoded frame.
+#endif
 
     /**
      * Number of frames the decoded output will be delayed relative to
@@ -1356,6 +1378,16 @@
 
     int b_frame_strategy;
 
+#if FF_API_HURRY_UP
+    /**
+     * hurry up amount
+     * - encoding: unused
+     * - decoding: Set by user. 1-> Skip B-frames, 2-> Skip IDCT/dequant too, 5-> Skip everything except header
+     * @deprecated Deprecated in favor of skip_idct and skip_frame.
+     */
+    attribute_deprecated int hurry_up;
+#endif
+
     struct AVCodec *codec;
 
     void *priv_data;
@@ -1473,6 +1505,9 @@
 #define FF_COMPLIANCE_VERY_STRICT   2 ///< Strictly conform to an older more strict version of the spec or reference software.
 #define FF_COMPLIANCE_STRICT        1 ///< Strictly conform to all the things in the spec no matter what consequences.
 #define FF_COMPLIANCE_NORMAL        0
+#if FF_API_INOFFICIAL
+#define FF_COMPLIANCE_INOFFICIAL   -1 ///< Allow inofficial extensions (deprecated - use FF_COMPLIANCE_UNOFFICIAL instead).
+#endif
 #define FF_COMPLIANCE_UNOFFICIAL   -1 ///< Allow unofficial extensions
 #define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
 
@@ -1746,6 +1781,25 @@
      */
     unsigned dsp_mask;
 
+#if FF_API_MM_FLAGS
+#define FF_MM_FORCE      AV_CPU_FLAG_FORCE
+#define FF_MM_MMX        AV_CPU_FLAG_MMX
+#define FF_MM_3DNOW      AV_CPU_FLAG_3DNOW
+#define FF_MM_MMXEXT     AV_CPU_FLAG_MMX2
+#define FF_MM_MMX2       AV_CPU_FLAG_MMX2
+#define FF_MM_SSE        AV_CPU_FLAG_SSE
+#define FF_MM_SSE2       AV_CPU_FLAG_SSE2
+#define FF_MM_SSE2SLOW   AV_CPU_FLAG_SSE2SLOW
+#define FF_MM_3DNOWEXT   AV_CPU_FLAG_3DNOWEXT
+#define FF_MM_SSE3       AV_CPU_FLAG_SSE3
+#define FF_MM_SSE3SLOW   AV_CPU_FLAG_SSE3SLOW
+#define FF_MM_SSSE3      AV_CPU_FLAG_SSSE3
+#define FF_MM_SSE4       AV_CPU_FLAG_SSE4
+#define FF_MM_SSE42      AV_CPU_FLAG_SSE42
+#define FF_MM_IWMMXT     AV_CPU_FLAG_IWMMXT
+#define FF_MM_ALTIVEC    AV_CPU_FLAG_ALTIVEC
+#endif
+
     /**
      * bits per sample/pixel from the demuxer (needed for huffyuv).
      * - encoding: Set by libavcodec.
@@ -1820,6 +1874,22 @@
      */
     uint64_t error[4];
 
+#if FF_API_MB_Q
+    /**
+     * minimum MB quantizer
+     * - encoding: unused
+     * - decoding: unused
+     */
+    attribute_deprecated int mb_qmin;
+
+    /**
+     * maximum MB quantizer
+     * - encoding: unused
+     * - decoding: unused
+     */
+    attribute_deprecated int mb_qmax;
+#endif
+
     /**
      * motion estimation comparison function
      * - encoding: Set by user.
@@ -2521,6 +2591,23 @@
     int compression_level;
 #define FF_COMPRESSION_DEFAULT -1
 
+#if FF_API_USE_LPC
+    /**
+     * Sets whether to use LPC mode - used by FLAC encoder.
+     * - encoding: Set by user.
+     * - decoding: unused
+     * @deprecated Deprecated in favor of lpc_type and lpc_passes.
+     */
+    int use_lpc;
+
+    /**
+     * LPC coefficient precision - used by FLAC encoder
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int lpc_coeff_precision;
+#endif
+
     /**
      * - encoding: Set by user.
      * - decoding: unused
@@ -2541,13 +2628,6 @@
      */
 
     /**
-     * LPC coefficient precision - used by FLAC encoder
-     * - encoding: Set by user.
-     * - decoding: unused
-     */
-    attribute_deprecated int lpc_coeff_precision;
-
-    /**
      * search method for selecting prediction order
      * - encoding: Set by user.
      * - decoding: unused
@@ -3210,33 +3290,6 @@
  */
 void av_free_packet(AVPacket *pkt);
 
-/**
- * Allocate new information of a packet.
- *
- * @param pkt packet
- * @param type side information type
- * @param size side information size
- * @return pointer to fresh allocated data or NULL otherwise
- */
-uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
-                                 int size);
-
-/**
- * Get side information from packet.
- *
- * @param pkt packet
- * @param type desired side information type
- * @param size pointer for side information size to store (optional)
- * @return pointer to data if present or NULL otherwise
- */
-uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
-                                 int *size);
-
-int av_packet_merge_side_data(AVPacket *pkt);
-
-int av_packet_split_side_data(AVPacket *pkt);
-
-
 /* resample.c */
 
 struct ReSampleContext;
@@ -3244,6 +3297,14 @@
 
 typedef struct ReSampleContext ReSampleContext;
 
+#if FF_API_AUDIO_OLD
+/**
+ * @deprecated Use av_audio_resample_init() instead.
+ */
+attribute_deprecated ReSampleContext *audio_resample_init(int output_channels, int input_channels,
+                                                          int output_rate, int input_rate);
+#endif
+
 /**
  *  Initialize audio resampling context.
  *
@@ -3407,6 +3468,23 @@
 
 void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * Return the pixel format corresponding to the name name.
+ *
+ * If there is no pixel format with name name, then look for a
+ * pixel format with the name corresponding to the native endian
+ * format of name.
+ * For example in a little-endian system, first look for "gray16",
+ * then for "gray16le".
+ *
+ * Finally if no pixel format has been found, return PIX_FMT_NONE.
+ *
+ * @deprecated Deprecated in favor of av_get_pix_fmt().
+ */
+attribute_deprecated enum PixelFormat avcodec_get_pix_fmt(const char* name);
+#endif
+
 /**
  * Return a value representing the fourCC code associated to the
  * pixel format pix_fmt, or 0 if no associated fourCC code can be
@@ -3475,6 +3553,14 @@
 enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
                               int has_alpha, int *loss_ptr);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * @deprecated Use av_get_pix_fmt_string() instead.
+ */
+attribute_deprecated
+void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt);
+#endif
+
 #define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
 #define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
 
@@ -3525,6 +3611,13 @@
  */
 void avcodec_init(void);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * @deprecated Deprecated in favor of avcodec_register().
+ */
+attribute_deprecated void register_avcodec(AVCodec *codec);
+#endif
+
 /**
  * Register the codec codec and initialize libavcodec.
  *
@@ -3669,6 +3762,14 @@
 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
                                int linesize_align[4]);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * @deprecated Deprecated in favor of av_check_image_size().
+ */
+attribute_deprecated
+int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
+#endif
+
 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
 
 #if FF_API_THREAD_INIT
@@ -3677,8 +3778,8 @@
  */
 attribute_deprecated
 int avcodec_thread_init(AVCodecContext *s, int thread_count);
+void avcodec_thread_free(AVCodecContext *s);
 #endif
-
 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
 //FIXME func typedef
@@ -3712,6 +3813,25 @@
  */
 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
 
+#if FF_API_AUDIO_OLD
+/**
+ * Decode an audio frame from buf into samples.
+ * Wrapper function which calls avcodec_decode_audio3.
+ *
+ * @deprecated Use avcodec_decode_audio3 instead.
+ * @param avctx the codec context
+ * @param[out] samples the output buffer
+ * @param[in,out] frame_size_ptr the output buffer size in bytes
+ * @param[in] buf the input buffer
+ * @param[in] buf_size the input buffer size in bytes
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ */
+attribute_deprecated int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
+                         int *frame_size_ptr,
+                         const uint8_t *buf, int buf_size);
+#endif
+
 /**
  * Decode the audio frame of size avpkt->size from avpkt->data into samples.
  * Some decoders may support multiple frames in a single AVPacket, such
@@ -3755,6 +3875,25 @@
                          int *frame_size_ptr,
                          AVPacket *avpkt);
 
+#if FF_API_VIDEO_OLD
+/**
+ * Decode a video frame from buf into picture.
+ * Wrapper function which calls avcodec_decode_video2.
+ *
+ * @deprecated Use avcodec_decode_video2 instead.
+ * @param avctx the codec context
+ * @param[out] picture The AVFrame in which the decoded video frame will be stored.
+ * @param[in] buf the input buffer
+ * @param[in] buf_size the size of the input buffer in bytes
+ * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ */
+attribute_deprecated int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
+                         int *got_picture_ptr,
+                         const uint8_t *buf, int buf_size);
+#endif
+
 /**
  * Decode the video frame of size avpkt->size from avpkt->data into picture.
  * Some decoders may support multiple frames in a single AVPacket, such
@@ -3799,6 +3938,15 @@
                          int *got_picture_ptr,
                          AVPacket *avpkt);
 
+#if FF_API_SUBTITLE_OLD
+/* Decode a subtitle message. Return -1 if error, otherwise return the
+ * number of bytes used. If no subtitle could be decompressed,
+ * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
+attribute_deprecated int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
+                            int *got_sub_ptr,
+                            const uint8_t *buf, int buf_size);
+#endif
+
 /**
  * Decode a subtitle message.
  * Return a negative value on error, otherwise return the number of bytes used.
@@ -4067,6 +4215,15 @@
 void av_register_codec_parser(AVCodecParser *parser);
 AVCodecParserContext *av_parser_init(int codec_id);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+attribute_deprecated
+int av_parser_parse(AVCodecParserContext *s,
+                    AVCodecContext *avctx,
+                    uint8_t **poutbuf, int *poutbuf_size,
+                    const uint8_t *buf, int buf_size,
+                    int64_t pts, int64_t dts);
+#endif
+
 /**
  * Parse a packet.
  *
@@ -4145,7 +4302,7 @@
  *
  * @see av_realloc
  */
-void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
+void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size);
 
 /**
  * Allocate a buffer, reusing the given one if large enough.
@@ -4159,7 +4316,17 @@
  * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and
  *                 *size 0 if an error occurred.
  */
-void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
+void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size);
+
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * @deprecated Deprecated in favor of av_image_copy().
+ */
+attribute_deprecated
+void av_picture_data_copy(uint8_t *dst_data[4], int dst_linesize[4],
+                          uint8_t *src_data[4], int src_linesize[4],
+                          enum PixelFormat pix_fmt, int width, int height);
+#endif
 
 /**
  * Copy image src to dst. Wraps av_picture_data_copy() above.
@@ -4188,6 +4355,22 @@
  */
 unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * Parse str and put in width_ptr and height_ptr the detected values.
+ *
+ * @deprecated Deprecated in favor of av_parse_video_size().
+ */
+attribute_deprecated int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str);
+
+/**
+ * Parse str and store the detected values in *frame_rate.
+ *
+ * @deprecated Deprecated in favor of av_parse_video_rate().
+ */
+attribute_deprecated int av_parse_video_frame_rate(AVRational *frame_rate, const char *str);
+#endif
+
 /**
  * Logs a generic warning message about a missing feature. This function is
  * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.)
diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index ff34285..5825854 100644
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -26,21 +26,12 @@
 void av_destruct_packet_nofree(AVPacket *pkt)
 {
     pkt->data = NULL; pkt->size = 0;
-    pkt->side_data       = NULL;
-    pkt->side_data_elems = 0;
 }
 
 void av_destruct_packet(AVPacket *pkt)
 {
-    int i;
-
     av_free(pkt->data);
     pkt->data = NULL; pkt->size = 0;
-
-    for (i = 0; i < pkt->side_data_elems; i++)
-        av_free(pkt->side_data[i].data);
-    av_freep(&pkt->side_data);
-    pkt->side_data_elems = 0;
 }
 
 void av_init_packet(AVPacket *pkt)
@@ -53,8 +44,6 @@
     pkt->flags = 0;
     pkt->stream_index = 0;
     pkt->destruct= NULL;
-    pkt->side_data       = NULL;
-    pkt->side_data_elems = 0;
 }
 
 int av_new_packet(AVPacket *pkt, int size)
@@ -100,52 +89,23 @@
     return 0;
 }
 
-#define DUP_DATA(dst, src, size, padding) \
-    do { \
-        void *data; \
-        if (padding) { \
-            if ((unsigned)(size) > (unsigned)(size) + FF_INPUT_BUFFER_PADDING_SIZE) \
-                goto failed_alloc; \
-            data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE); \
-        } else { \
-            data = av_malloc(size); \
-        } \
-        if (!data) \
-            goto failed_alloc; \
-        memcpy(data, src, size); \
-        if (padding) \
-            memset((uint8_t*)data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE); \
-        dst = data; \
-    } while(0)
-
 int av_dup_packet(AVPacket *pkt)
 {
-    AVPacket tmp_pkt;
-
     if (((pkt->destruct == av_destruct_packet_nofree) || (pkt->destruct == NULL)) && pkt->data) {
-        tmp_pkt = *pkt;
-
-        pkt->data      = NULL;
-        pkt->side_data = NULL;
-        DUP_DATA(pkt->data, tmp_pkt.data, pkt->size, 1);
-        pkt->destruct = av_destruct_packet;
-
-        if (pkt->side_data_elems) {
-            int i;
-
-            DUP_DATA(pkt->side_data, tmp_pkt.side_data,
-                     pkt->side_data_elems * sizeof(*pkt->side_data), 0);
-            memset(pkt->side_data, 0, pkt->side_data_elems * sizeof(*pkt->side_data));
-            for (i = 0; i < pkt->side_data_elems; i++) {
-                DUP_DATA(pkt->side_data[i].data, tmp_pkt.side_data[i].data,
-                         pkt->side_data[i].size, 1);
-            }
+        uint8_t *data;
+        /* We duplicate the packet and don't forget to add the padding again. */
+        if((unsigned)pkt->size > (unsigned)pkt->size + FF_INPUT_BUFFER_PADDING_SIZE)
+            return AVERROR(ENOMEM);
+        data = av_malloc(pkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
+        if (!data) {
+            return AVERROR(ENOMEM);
         }
+        memcpy(data, pkt->data, pkt->size);
+        memset(data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        pkt->data = data;
+        pkt->destruct = av_destruct_packet;
     }
     return 0;
-failed_alloc:
-    av_destruct_packet(pkt);
-    return AVERROR(ENOMEM);
 }
 
 void av_free_packet(AVPacket *pkt)
@@ -153,125 +113,6 @@
     if (pkt) {
         if (pkt->destruct) pkt->destruct(pkt);
         pkt->data = NULL; pkt->size = 0;
-        pkt->side_data       = NULL;
-        pkt->side_data_elems = 0;
     }
 }
 
-uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
-                                 int size)
-{
-    int elems = pkt->side_data_elems;
-
-    if ((unsigned)elems + 1 > INT_MAX / sizeof(*pkt->side_data))
-        return NULL;
-    if ((unsigned)size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
-        return NULL;
-
-    pkt->side_data = av_realloc(pkt->side_data, (elems + 1) * sizeof(*pkt->side_data));
-    if (!pkt->side_data)
-        return NULL;
-
-    pkt->side_data[elems].data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
-    if (!pkt->side_data[elems].data)
-        return NULL;
-    pkt->side_data[elems].size = size;
-    pkt->side_data[elems].type = type;
-    pkt->side_data_elems++;
-
-    return pkt->side_data[elems].data;
-}
-
-uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
-                                 int *size)
-{
-    int i;
-
-    for (i = 0; i < pkt->side_data_elems; i++) {
-        if (pkt->side_data[i].type == type) {
-            if (size)
-                *size = pkt->side_data[i].size;
-            return pkt->side_data[i].data;
-        }
-    }
-    return NULL;
-}
-
-#define FF_MERGE_MARKER 0x8c4d9d108e25e9feULL
-
-int av_packet_merge_side_data(AVPacket *pkt){
-    if(pkt->side_data_elems){
-        int i;
-        uint8_t *p;
-        uint64_t size= pkt->size + 8LL + FF_INPUT_BUFFER_PADDING_SIZE;
-        AVPacket old= *pkt;
-        for (i=0; i<old.side_data_elems; i++) {
-            size += old.side_data[i].size + 5LL;
-        }
-        if (size > INT_MAX)
-            return AVERROR(EINVAL);
-        p = av_malloc(size);
-        if (!p)
-            return AVERROR(ENOMEM);
-        pkt->data = p;
-        pkt->destruct = av_destruct_packet;
-        pkt->size = size - FF_INPUT_BUFFER_PADDING_SIZE;
-        bytestream_put_buffer(&p, old.data, old.size);
-        for (i=old.side_data_elems-1; i>=0; i--) {
-            bytestream_put_buffer(&p, old.side_data[i].data, old.side_data[i].size);
-            bytestream_put_be32(&p, old.side_data[i].size);
-            *p++ = old.side_data[i].type | ((i==old.side_data_elems-1)*128);
-        }
-        bytestream_put_be64(&p, FF_MERGE_MARKER);
-        av_assert0(p-pkt->data == pkt->size);
-        memset(p, 0, FF_INPUT_BUFFER_PADDING_SIZE);
-        av_free_packet(&old);
-        pkt->side_data_elems = 0;
-        pkt->side_data = NULL;
-        return 1;
-    }
-    return 0;
-}
-
-int av_packet_split_side_data(AVPacket *pkt){
-    if (!pkt->side_data_elems && pkt->size >12 && AV_RB64(pkt->data + pkt->size - 8) == FF_MERGE_MARKER){
-        int i;
-        unsigned int size;
-        uint8_t *p= pkt->data + pkt->size - 8 - 5;
-
-        av_dup_packet(pkt);
-
-        for (i=1; ; i++){
-            size = AV_RB32(p);
-            if (size>INT_MAX || p - pkt->data <= size)
-                return 0;
-            if (p[4]&128)
-                break;
-            p-= size+5;
-        }
-
-        pkt->side_data = av_malloc(i * sizeof(*pkt->side_data));
-        if (!pkt->side_data)
-            return AVERROR(ENOMEM);
-
-        p= pkt->data + pkt->size - 8 - 5;
-        for (i=0; ; i++){
-            size= AV_RB32(p);
-            av_assert0(size<=INT_MAX && p - pkt->data > size);
-            pkt->side_data[i].data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
-            pkt->side_data[i].size = size;
-            pkt->side_data[i].type = p[4]&127;
-            if (!pkt->side_data[i].data)
-                return AVERROR(ENOMEM);
-            memcpy(pkt->side_data[i].data, p-size, size);
-            pkt->size -= size + 5;
-            if(p[4]&128)
-                break;
-            p-= size+5;
-        }
-        pkt->size -= 8;
-        pkt->side_data_elems = i+1;
-        return 1;
-    }
-    return 0;
-}
diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c
index 0b822d2..7e1789d 100644
--- a/libavcodec/cinepak.c
+++ b/libavcodec/cinepak.c
@@ -67,7 +67,6 @@
 
     int sega_film_skip_bytes;
 
-    uint32_t pal[256];
 } CinepakContext;
 
 static void cinepak_decode_codebook (cvid_codebook *codebook,
@@ -397,7 +396,7 @@
     s->sega_film_skip_bytes = -1;  /* uninitialized state */
 
     // check for paletted data
-    if (avctx->bits_per_coded_sample != 8) {
+    if ((avctx->palctrl == NULL) || (avctx->bits_per_coded_sample == 40)) {
         s->palette_video = 0;
         avctx->pix_fmt = PIX_FMT_YUV420P;
     } else {
@@ -430,18 +429,16 @@
         return -1;
     }
 
-    if (s->palette_video) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-        if (pal) {
-            s->frame.palette_has_changed = 1;
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-        }
-    }
-
     cinepak_decode(s);
 
-    if (s->palette_video)
-        memcpy (s->frame.data[1], s->pal, AVPALETTE_SIZE);
+    if (s->palette_video) {
+        memcpy (s->frame.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
+        if (avctx->palctrl->palette_changed) {
+            s->frame.palette_has_changed = 1;
+            avctx->palctrl->palette_changed = 0;
+        } else
+            s->frame.palette_has_changed = 0;
+    }
 
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data = s->frame;
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 0143ed7..8dd2684 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -120,6 +120,14 @@
 void ff_ea_idct_put_c(uint8_t *dest, int linesize, DCTELEM *block);
 
 /* 1/2^n downscaling functions from imgconvert.c */
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ * @deprecated Use av_image_copy_plane() instead.
+ */
+attribute_deprecated
+void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+#endif
+
 void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
 void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
 void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
diff --git a/libavcodec/flacenc.c b/libavcodec/flacenc.c
index a80f0f9..838017b 100644
--- a/libavcodec/flacenc.c
+++ b/libavcodec/flacenc.c
@@ -296,6 +296,17 @@
         s->options.max_partition_order = ((int[]){  2,  2,  3,  3,  3,  8,  8,  8,  8,  8,  8,  8,  8})[level];
 
     /* set compression option overrides from AVCodecContext */
+#if FF_API_USE_LPC
+    /* for compatibility with deprecated AVCodecContext.use_lpc */
+    if (avctx->use_lpc == 0) {
+        s->options.lpc_type = AV_LPC_TYPE_FIXED;
+    } else if (avctx->use_lpc == 1) {
+        s->options.lpc_type = AV_LPC_TYPE_LEVINSON;
+    } else if (avctx->use_lpc > 1) {
+        s->options.lpc_type   = AV_LPC_TYPE_CHOLESKY;
+        s->options.lpc_passes = avctx->use_lpc - 1;
+    }
+#endif
 #if FF_API_FLAC_GLOBAL_OPTS
     if (avctx->lpc_type > FF_LPC_TYPE_DEFAULT) {
         if (avctx->lpc_type > FF_LPC_TYPE_CHOLESKY) {
diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c
index 108bd0e..856fae3 100644
--- a/libavcodec/h261dec.c
+++ b/libavcodec/h261dec.c
@@ -599,6 +599,10 @@
     s->current_picture.pict_type= s->pict_type;
     s->current_picture.key_frame= s->pict_type == AV_PICTURE_TYPE_I;
 
+#if FF_API_HURRY_UP
+    /* skip everything if we are in a hurry>=5 */
+    if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);
+#endif
     if(  (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
        ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
        || avctx->skip_frame >= AVDISCARD_ALL)
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index e142c33..95b0164 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -598,10 +598,18 @@
 
     /* skip B-frames if we don't have reference frames */
     if(s->last_picture_ptr==NULL && (s->pict_type==AV_PICTURE_TYPE_B || s->dropable)) return get_consumed_bytes(s, buf_size);
+#if FF_API_HURRY_UP
+    /* skip b frames if we are in a hurry */
+    if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, buf_size);
+#endif
     if(   (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
        || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
        ||  avctx->skip_frame >= AVDISCARD_ALL)
         return get_consumed_bytes(s, buf_size);
+#if FF_API_HURRY_UP
+    /* skip everything if we are in a hurry>=5 */
+    if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);
+#endif
 
     if(s->next_p_frame_damaged){
         if(s->pict_type==AV_PICTURE_TYPE_B)
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index fd33aef..ff38bd7 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -3770,7 +3770,11 @@
         }
 
         //FIXME do not discard SEI id
-        if(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc  == 0)
+        if(
+#if FF_API_HURRY_UP
+           (s->hurry_up == 1 && h->nal_ref_idc  == 0) ||
+#endif
+           (avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc  == 0))
             continue;
 
       again:
@@ -3807,6 +3811,9 @@
             }
 
             if(hx->redundant_pic_count==0
+#if FF_API_HURRY_UP
+               && hx->s.hurry_up < 5
+#endif
                && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
                && (avctx->skip_frame < AVDISCARD_BIDIR  || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
                && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
@@ -3844,6 +3851,9 @@
 
             if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
                && s->context_initialized
+#if FF_API_HURRY_UP
+               && s->hurry_up < 5
+#endif
                && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
                && (avctx->skip_frame < AVDISCARD_BIDIR  || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
                && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
@@ -3982,7 +3992,11 @@
     }
 
     if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
-        if (avctx->skip_frame >= AVDISCARD_NONREF)
+        if (avctx->skip_frame >= AVDISCARD_NONREF
+#if FF_API_HURRY_UP
+                || s->hurry_up
+#endif
+           )
             return 0;
         av_log(avctx, AV_LOG_ERROR, "no frame!\n");
         return -1;
diff --git a/libavcodec/idcinvideo.c b/libavcodec/idcinvideo.c
index 362ba3b..78ac77b 100644
--- a/libavcodec/idcinvideo.c
+++ b/libavcodec/idcinvideo.c
@@ -72,7 +72,6 @@
     hnode huff_nodes[256][HUF_TOKENS*2];
     int num_huff_nodes[256];
 
-    uint32_t pal[256];
 } IdcinContext;
 
 /*
@@ -215,7 +214,7 @@
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     IdcinContext *s = avctx->priv_data;
-    const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
+    AVPaletteControl *palette_control = avctx->palctrl;
 
     s->buf = buf;
     s->size = buf_size;
@@ -230,12 +229,13 @@
 
     idcin_decode_vlcs(s);
 
-    if (pal) {
-        s->frame.palette_has_changed = 1;
-        memcpy(s->pal, pal, AVPALETTE_SIZE);
-    }
     /* make the palette available on the way out */
-    memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+    memcpy(s->frame.data[1], palette_control->palette, PALETTE_COUNT * 4);
+    /* If palette changed inform application*/
+    if (palette_control->palette_changed) {
+        palette_control->palette_changed = 0;
+        s->frame.palette_has_changed = 1;
+    }
 
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data = s->frame;
diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 04c58ca..beb3ee1 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -424,11 +424,40 @@
 }
 #endif
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+enum PixelFormat avcodec_get_pix_fmt(const char *name)
+{
+    return av_get_pix_fmt(name);
+}
+
+void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
+{
+    av_get_pix_fmt_string(buf, buf_size, pix_fmt);
+}
+#endif
+
 int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt)
 {
     return av_pix_fmt_descriptors[pix_fmt].flags & PIX_FMT_HWACCEL;
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){
+    return ff_set_systematic_pal2(pal, pix_fmt);
+}
+
+int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width)
+{
+    return av_image_fill_linesizes(picture->linesize, pix_fmt, width);
+}
+
+int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt,
+                    int height)
+{
+    return av_image_fill_pointers(picture->data, pix_fmt, height, ptr, picture->linesize);
+}
+#endif
+
 int avpicture_fill(AVPicture *picture, uint8_t *ptr,
                    enum PixelFormat pix_fmt, int width, int height)
 {
@@ -673,6 +702,28 @@
     return dst_pix_fmt;
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+void ff_img_copy_plane(uint8_t *dst, int dst_wrap,
+                           const uint8_t *src, int src_wrap,
+                           int width, int height)
+{
+    av_image_copy_plane(dst, dst_wrap, src, src_wrap, width, height);
+}
+
+int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane)
+{
+    return av_image_get_linesize(pix_fmt, width, plane);
+}
+
+void av_picture_data_copy(uint8_t *dst_data[4], int dst_linesize[4],
+                          uint8_t *src_data[4], int src_linesize[4],
+                          enum PixelFormat pix_fmt, int width, int height)
+{
+    av_image_copy(dst_data, dst_linesize, src_data, src_linesize,
+                  pix_fmt, width, height);
+}
+#endif
+
 void av_picture_copy(AVPicture *dst, const AVPicture *src,
                      enum PixelFormat pix_fmt, int width, int height)
 {
diff --git a/libavcodec/interplayvideo.c b/libavcodec/interplayvideo.c
index 7e26e1d..5c61af3 100644
--- a/libavcodec/interplayvideo.c
+++ b/libavcodec/interplayvideo.c
@@ -69,7 +69,6 @@
     int stride;
     int upper_motion_limit_offset;
 
-    uint32_t pal[256];
 } IpvideoContext;
 
 #define CHECK_STREAM_PTR(stream_ptr, stream_end, n) \
@@ -962,7 +961,7 @@
 
     if (!s->is_16bpp) {
         /* this is PAL8, so make the palette available */
-        memcpy(s->current_frame.data[1], s->pal, AVPALETTE_SIZE);
+        memcpy(s->current_frame.data[1], s->avctx->palctrl->palette, PALETTE_COUNT * 4);
 
         s->stride = s->current_frame.linesize[0];
         s->stream_ptr = s->buf + 14;  /* data starts 14 bytes in */
@@ -1016,6 +1015,10 @@
 
     s->is_16bpp = avctx->bits_per_coded_sample == 16;
     avctx->pix_fmt = s->is_16bpp ? PIX_FMT_RGB555 : PIX_FMT_PAL8;
+    if (!s->is_16bpp && s->avctx->palctrl == NULL) {
+        av_log(avctx, AV_LOG_ERROR, " Interplay video: palette expected.\n");
+        return -1;
+    }
 
     dsputil_init(&s->dsp, avctx);
 
@@ -1038,6 +1041,7 @@
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     IpvideoContext *s = avctx->priv_data;
+    AVPaletteControl *palette_control = avctx->palctrl;
 
     /* compressed buffer needs to be large enough to at least hold an entire
      * decoding map */
@@ -1054,16 +1058,13 @@
         return -1;
     }
 
-    if (!s->is_16bpp) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-        if (pal) {
-            s->current_frame.palette_has_changed = 1;
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-        }
-    }
-
     ipvideo_decode_opcodes(s);
 
+    if (!s->is_16bpp && palette_control->palette_changed) {
+        palette_control->palette_changed = 0;
+        s->current_frame.palette_has_changed = 1;
+    }
+
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data = s->current_frame;
 
diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index aa2aaac..9ea18e8 100644
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -233,7 +233,6 @@
     int i;
     int header;
     int blocksize;
-    const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
     if (ctx->pic.data[0])
         avctx->release_buffer(avctx, &ctx->pic);
@@ -265,6 +264,13 @@
         ctx->pic.pict_type = AV_PICTURE_TYPE_P;
     }
 
+    /* if palette has been changed, copy it from palctrl */
+    if (ctx->avctx->palctrl && ctx->avctx->palctrl->palette_changed) {
+        memcpy(ctx->pal, ctx->avctx->palctrl->palette, AVPALETTE_SIZE);
+        ctx->setpal = 1;
+        ctx->avctx->palctrl->palette_changed = 0;
+    }
+
     if (header & KMVC_PALETTE) {
         ctx->pic.palette_has_changed = 1;
         // palette starts from index 1 and has 127 entries
@@ -273,11 +279,6 @@
         }
     }
 
-    if (pal) {
-        ctx->pic.palette_has_changed = 1;
-        memcpy(ctx->pal, pal, AVPALETTE_SIZE);
-    }
-
     if (ctx->setpal) {
         ctx->setpal = 0;
         ctx->pic.palette_has_changed = 1;
@@ -373,6 +374,9 @@
             src += 4;
         }
         c->setpal = 1;
+        if (c->avctx->palctrl) {
+            c->avctx->palctrl->palette_changed = 0;
+        }
     }
 
     avcodec_get_frame_defaults(&c->pic);
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index bd858a5..219d5c8 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -2475,10 +2475,18 @@
                 /* Skip P-frames if we do not have a reference frame or we have an invalid header. */
                     if(s2->pict_type==AV_PICTURE_TYPE_P && !s->sync) break;
                 }
+#if FF_API_HURRY_UP
+                /* Skip B-frames if we are in a hurry. */
+                if(avctx->hurry_up && s2->pict_type==FF_B_TYPE) break;
+#endif
                 if(  (avctx->skip_frame >= AVDISCARD_NONREF && s2->pict_type==AV_PICTURE_TYPE_B)
                     ||(avctx->skip_frame >= AVDISCARD_NONKEY && s2->pict_type!=AV_PICTURE_TYPE_I)
                     || avctx->skip_frame >= AVDISCARD_ALL)
                     break;
+#if FF_API_HURRY_UP
+                /* Skip everything if we are in a hurry>=5. */
+                if(avctx->hurry_up>=5) break;
+#endif
 
                 if (!s->mpeg_enc_ctx_allocated) break;
 
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 9c47c15..d56ca82 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1139,6 +1139,9 @@
         }
     }
 
+#if FF_API_HURRY_UP
+    s->hurry_up= s->avctx->hurry_up;
+#endif
     s->error_recognition= avctx->error_recognition;
 
     /* set dequantizer, we can't do it during init as it might change for mpeg4
@@ -2148,6 +2151,9 @@
             }
 
             /* skip dequant / idct if we are really late ;) */
+#if FF_API_HURRY_UP
+            if(s->hurry_up>1) goto skip_idct;
+#endif
             if(s->avctx->skip_idct){
                 if(  (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
                    ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 1b8483f..3d0d8b0 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -392,6 +392,11 @@
     int no_rounding;  /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
                         for b-frames rounding mode is always 0 */
 
+#if FF_API_HURRY_UP
+    int hurry_up;     /**< when set to 1 during decoding, b frames will be skipped
+                         when set to 2 idct/dequant will be skipped too */
+#endif
+
     /* macroblock layer */
     int mb_x, mb_y;
     int mb_skip_run;
diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 496eb40..cd81200 100644
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -26,6 +26,9 @@
  *   http://www.pcisys.net/~melanson/codecs/
  *
  * The MS RLE decoder outputs PAL8 colorspace data.
+ *
+ * Note that this decoder expects the palette colors from the end of the
+ * BITMAPINFO header passed through palctrl.
  */
 
 #include <stdio.h>
@@ -43,7 +46,6 @@
     const unsigned char *buf;
     int size;
 
-    uint32_t pal[256];
 } MsrleContext;
 
 static av_cold int msrle_decode_init(AVCodecContext *avctx)
@@ -93,16 +95,13 @@
         return -1;
     }
 
-    if (avctx->bits_per_coded_sample > 1 && avctx->bits_per_coded_sample <= 8) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-
-        if (pal) {
-            s->frame.palette_has_changed = 1;
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-        }
-
+    if (s->avctx->palctrl) {
         /* make the palette available */
-        memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+        memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
+        if (s->avctx->palctrl->palette_changed) {
+            s->frame.palette_has_changed = 1;
+            s->avctx->palctrl->palette_changed = 0;
+        }
     }
 
     /* FIXME how to correctly detect RLE ??? */
diff --git a/libavcodec/msvideo1.c b/libavcodec/msvideo1.c
index c1c7d48..bd55cad 100644
--- a/libavcodec/msvideo1.c
+++ b/libavcodec/msvideo1.c
@@ -25,6 +25,9 @@
  * For more information about the MS Video-1 format, visit:
  *   http://www.pcisys.net/~melanson/codecs/
  *
+ * This decoder outputs either PAL8 or RGB555 data, depending on the
+ * whether a RGB palette was passed through palctrl;
+ * if it's present, then the data is PAL8; RGB555 otherwise.
  */
 
 #include <stdio.h>
@@ -52,7 +55,6 @@
 
     int mode_8bit;  /* if it's not 8-bit, it's 16-bit */
 
-    uint32_t pal[256];
 } Msvideo1Context;
 
 static av_cold int msvideo1_decode_init(AVCodecContext *avctx)
@@ -62,7 +64,7 @@
     s->avctx = avctx;
 
     /* figure out the colorspace based on the presence of a palette */
-    if (s->avctx->bits_per_coded_sample == 8) {
+    if (s->avctx->palctrl) {
         s->mode_8bit = 1;
         avctx->pix_fmt = PIX_FMT_PAL8;
     } else {
@@ -172,8 +174,13 @@
     }
 
     /* make the palette available on the way out */
-    if (s->avctx->pix_fmt == PIX_FMT_PAL8)
-        memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+    if (s->avctx->pix_fmt == PIX_FMT_PAL8) {
+        memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
+        if (s->avctx->palctrl->palette_changed) {
+            s->frame.palette_has_changed = 1;
+            s->avctx->palctrl->palette_changed = 0;
+        }
+    }
 }
 
 static void msvideo1_decode_16bit(Msvideo1Context *s)
@@ -303,15 +310,6 @@
         return -1;
     }
 
-    if (s->mode_8bit) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-
-        if (pal) {
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-            s->frame.palette_has_changed = 1;
-        }
-    }
-
     if (s->mode_8bit)
         msvideo1_decode_8bit(s);
     else
diff --git a/libavcodec/opt.c b/libavcodec/opt.c
new file mode 100644
index 0000000..f41fae0
--- /dev/null
+++ b/libavcodec/opt.c
@@ -0,0 +1,89 @@
+/*
+ * AVOptions ABI compatibility wrapper
+ * Copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "opt.h"
+
+#if LIBAVCODEC_VERSION_MAJOR < 53 && CONFIG_SHARED && HAVE_SYMVER
+
+FF_SYMVER(const AVOption *, av_find_opt, (void *obj, const char *name, const char *unit, int mask, int flags), "LIBAVCODEC_52"){
+    return av_find_opt(obj, name, unit, mask, flags);
+}
+FF_SYMVER(int, av_set_string3, (void *obj, const char *name, const char *val, int alloc, const AVOption **o_out), "LIBAVCODEC_52"){
+    return av_set_string3(obj, name, val, alloc, o_out);
+}
+FF_SYMVER(const AVOption *, av_set_double, (void *obj, const char *name, double n), "LIBAVCODEC_52"){
+    return av_set_double(obj, name, n);
+}
+FF_SYMVER(const AVOption *, av_set_q, (void *obj, const char *name, AVRational n), "LIBAVCODEC_52"){
+    return av_set_q(obj, name, n);
+}
+FF_SYMVER(const AVOption *, av_set_int, (void *obj, const char *name, int64_t n), "LIBAVCODEC_52"){
+    return av_set_int(obj, name, n);
+}
+FF_SYMVER(double, av_get_double, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+    return av_get_double(obj, name, o_out);
+}
+FF_SYMVER(AVRational, av_get_q, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+    return av_get_q(obj, name, o_out);
+}
+FF_SYMVER(int64_t, av_get_int, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+    return av_get_int(obj, name, o_out);
+}
+FF_SYMVER(const char *, av_get_string, (void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len), "LIBAVCODEC_52"){
+    return av_get_string(obj, name, o_out, buf, buf_len);
+}
+FF_SYMVER(const AVOption *, av_next_option, (void *obj, const AVOption *last), "LIBAVCODEC_52"){
+    return av_next_option(obj, last);
+}
+FF_SYMVER(int, av_opt_show2, (void *obj, void *av_log_obj, int req_flags, int rej_flags), "LIBAVCODEC_52"){
+    return av_opt_show2(obj, av_log_obj, req_flags, rej_flags);
+}
+FF_SYMVER(void, av_opt_set_defaults, (void *s), "LIBAVCODEC_52"){
+    return av_opt_set_defaults(s);
+}
+FF_SYMVER(void, av_opt_set_defaults2, (void *s, int mask, int flags), "LIBAVCODEC_52"){
+    return av_opt_set_defaults2(s, mask, flags);
+}
+#endif
+
+#if FF_API_SET_STRING_OLD
+const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc){
+    const AVOption *o;
+    if (av_set_string3(obj, name, val, alloc, &o) < 0)
+        return NULL;
+    return o;
+}
+
+const AVOption *av_set_string(void *obj, const char *name, const char *val){
+    const AVOption *o;
+    if (av_set_string3(obj, name, val, 0, &o) < 0)
+        return NULL;
+    return o;
+}
+#endif
+
+#if FF_API_OPT_SHOW
+int av_opt_show(void *obj, void *av_log_obj){
+    return av_opt_show2(obj, av_log_obj,
+                        AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+}
+#endif
diff --git a/libavcodec/opt.h b/libavcodec/opt.h
index 2380e74..505377d 100644
--- a/libavcodec/opt.h
+++ b/libavcodec/opt.h
@@ -1,18 +1,21 @@
 /*
- * This file is part of Libav.
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
  *
- * Libav is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -25,10 +28,34 @@
 #ifndef AVCODEC_OPT_H
 #define AVCODEC_OPT_H
 
-#include "libavcodec/version.h"
+/**
+ * @file
+ * AVOptions
+ */
 
-#if FF_API_OPT_H
+#include "libavutil/rational.h"
+#include "avcodec.h"
 #include "libavutil/opt.h"
+
+#if FF_API_SET_STRING_OLD
+/**
+ * @see av_set_string2()
+ */
+attribute_deprecated const AVOption *av_set_string(void *obj, const char *name, const char *val);
+
+/**
+ * @return a pointer to the AVOption corresponding to the field set or
+ * NULL if no matching AVOption exists, or if the value val is not
+ * valid
+ * @see av_set_string3()
+ */
+attribute_deprecated const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc);
+#endif
+#if FF_API_OPT_SHOW
+/**
+ * @deprecated Use av_opt_show2() instead.
+ */
+attribute_deprecated int av_opt_show(void *obj, void *av_log_obj);
 #endif
 
 #endif /* AVCODEC_OPT_H */
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 4845857..0a0a442 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -438,6 +438,7 @@
 {"crf_max", "in crf mode, prevents vbv from lowering quality beyond this point", OFFSET(crf_max), FF_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 51, V|E},
 {"log_level_offset", "set the log level offset", OFFSET(log_level_offset), FF_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX },
 #if FF_API_FLAC_GLOBAL_OPTS
+{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
 {"lpc_type", "deprecated, use flac-specific options", OFFSET(lpc_type), FF_OPT_TYPE_INT, {.dbl = AV_LPC_TYPE_DEFAULT }, AV_LPC_TYPE_DEFAULT, AV_LPC_TYPE_NB-1, A|E},
 {"none",     NULL, 0, FF_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_NONE },     INT_MIN, INT_MAX, A|E, "lpc_type"},
 {"fixed",    NULL, 0, FF_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_FIXED },    INT_MIN, INT_MAX, A|E, "lpc_type"},
diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index d4a6126..ff0842f 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -105,6 +105,43 @@
     }
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+/**
+ *
+ * @param buf           input
+ * @param buf_size      input length, to signal EOF, this should be 0 (so that the last frame can be output)
+ * @param pts           input presentation timestamp
+ * @param dts           input decoding timestamp
+ * @param poutbuf       will contain a pointer to the first byte of the output frame
+ * @param poutbuf_size  will contain the length of the output frame
+ * @return the number of bytes of the input bitstream used
+ *
+ * Example:
+ * @code
+ *   while(in_len){
+ *       len = av_parser_parse(myparser, AVCodecContext, &data, &size,
+ *                                       in_data, in_len,
+ *                                       pts, dts);
+ *       in_data += len;
+ *       in_len  -= len;
+ *
+ *       if(size)
+ *          decode_frame(data, size);
+ *   }
+ * @endcode
+ *
+ * @deprecated Use av_parser_parse2() instead.
+ */
+int av_parser_parse(AVCodecParserContext *s,
+                    AVCodecContext *avctx,
+                    uint8_t **poutbuf, int *poutbuf_size,
+                    const uint8_t *buf, int buf_size,
+                    int64_t pts, int64_t dts)
+{
+    return av_parser_parse2(s, avctx, poutbuf, poutbuf_size, buf, buf_size, pts, dts, AV_NOPTS_VALUE);
+}
+#endif
+
 int av_parser_parse2(AVCodecParserContext *s,
                      AVCodecContext *avctx,
                      uint8_t **poutbuf, int *poutbuf_size,
diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 4feecba..af0048a 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -383,6 +383,9 @@
     dst->release_buffer = src->release_buffer;
 
     dst->opaque   = src->opaque;
+#if FF_API_HURRY_UP
+    dst->hurry_up = src->hurry_up;
+#endif
     dst->dsp_mask = src->dsp_mask;
     dst->debug    = src->debug;
     dst->debug_mv = src->debug_mv;
diff --git a/libavcodec/qpeg.c b/libavcodec/qpeg.c
index 68232e2..39d8171 100644
--- a/libavcodec/qpeg.c
+++ b/libavcodec/qpeg.c
@@ -260,7 +260,6 @@
     AVFrame * ref= (AVFrame*)&a->ref;
     uint8_t* outdata;
     int delta;
-    const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
     if(ref->data[0])
         avctx->release_buffer(avctx, ref);
@@ -280,11 +279,11 @@
     }
 
     /* make the palette available on the way out */
-    if (pal) {
+    memcpy(a->pic.data[1], a->avctx->palctrl->palette, AVPALETTE_SIZE);
+    if (a->avctx->palctrl->palette_changed) {
         a->pic.palette_has_changed = 1;
-        memcpy(a->pal, pal, AVPALETTE_SIZE);
+        a->avctx->palctrl->palette_changed = 0;
     }
-    memcpy(a->pic.data[1], a->pal, AVPALETTE_SIZE);
 
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data = a->pic;
@@ -295,6 +294,10 @@
 static av_cold int decode_init(AVCodecContext *avctx){
     QpegContext * const a = avctx->priv_data;
 
+    if (!avctx->palctrl) {
+        av_log(avctx, AV_LOG_FATAL, "Missing required palette via palctrl\n");
+        return -1;
+    }
     avcodec_get_frame_defaults(&a->pic);
     avcodec_get_frame_defaults(&a->ref);
     a->avctx = avctx;
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index 124106f..8bcbbd3 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -46,7 +46,6 @@
     const unsigned char *buf;
     int size;
 
-    uint32_t pal[256];
 } QtrleContext;
 
 #define CHECK_STREAM_PTR(n) \
@@ -520,15 +519,12 @@
     }
 
     if(has_palette) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-
-        if (pal) {
-            s->frame.palette_has_changed = 1;
-            memcpy(s->pal, pal, AVPALETTE_SIZE);
-        }
-
         /* make the palette available on the way out */
-        memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+        memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
+        if (s->avctx->palctrl->palette_changed) {
+            s->frame.palette_has_changed = 1;
+            s->avctx->palctrl->palette_changed = 0;
+        }
     }
 
 done:
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c
index 503351e..d6791c3 100644
--- a/libavcodec/rawdec.c
+++ b/libavcodec/rawdec.c
@@ -184,13 +184,9 @@
         (av_pix_fmt_descriptors[avctx->pix_fmt].flags & PIX_FMT_PAL))){
         frame->data[1]= context->palette;
     }
-    if (avctx->pix_fmt == PIX_FMT_PAL8) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-
-        if (pal) {
-            memcpy(frame->data[1], pal, AVPALETTE_SIZE);
-            frame->palette_has_changed = 1;
-        }
+    if (avctx->palctrl && avctx->palctrl->palette_changed) {
+        memcpy(frame->data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
+        avctx->palctrl->palette_changed = 0;
     }
     if(avctx->pix_fmt==PIX_FMT_BGR24 && ((frame->linesize[0]+3)&~3)*avctx->height <= buf_size)
         frame->linesize[0] = (frame->linesize[0]+3)&~3;
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index 68e604e..d53c731 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -275,6 +275,17 @@
     return s;
 }
 
+#if FF_API_AUDIO_OLD
+ReSampleContext *audio_resample_init(int output_channels, int input_channels,
+                                     int output_rate, int input_rate)
+{
+    return av_audio_resample_init(output_channels, input_channels,
+                                  output_rate, input_rate,
+                                  AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16,
+                                  TAPS, 10, 0, 0.8);
+}
+#endif
+
 /* resample audio. 'nb_samples' is the number of input samples */
 /* XXX: optimize it ! */
 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples)
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 54fc29e..089ad42 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -1464,10 +1464,18 @@
     }
     if((!s->last_picture_ptr || !s->last_picture_ptr->data[0]) && si.type == AV_PICTURE_TYPE_B)
         return -1;
+#if FF_API_HURRY_UP
+    /* skip b frames if we are in a hurry */
+    if(avctx->hurry_up && si.type==FF_B_TYPE) return buf_size;
+#endif
     if(   (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B)
        || (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I)
-       ||  avctx->skip_frame >= AVDISCARD_ALL)
-        return avpkt->size;
+       ||  avctx->skip_frame >= AVDISCARD_ALL)        return avpkt->size;
+#if FF_API_HURRY_UP
+    /* skip everything if we are in a hurry>=5 */
+    if(avctx->hurry_up>=5)
+        return buf_size;
+#endif
 
     for(i=0; i<slice_count; i++){
         int offset= get_slice_offset(avctx, slices_hdr, i);
diff --git a/libavcodec/smc.c b/libavcodec/smc.c
index ce5b72a..fddd5ab 100644
--- a/libavcodec/smc.c
+++ b/libavcodec/smc.c
@@ -54,7 +54,6 @@
     unsigned char color_quads[COLORS_PER_TABLE * CQUAD];
     unsigned char color_octets[COLORS_PER_TABLE * COCTET];
 
-    uint32_t pal[256];
 } SmcContext;
 
 #define GET_BLOCK_COUNT() \
@@ -111,7 +110,11 @@
     int color_octet_index = 0;
 
     /* make the palette available */
-    memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+    memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
+    if (s->avctx->palctrl->palette_changed) {
+        s->frame.palette_has_changed = 1;
+        s->avctx->palctrl->palette_changed = 0;
+    }
 
     chunk_size = AV_RB32(&s->buf[stream_ptr]) & 0x00FFFFFF;
     stream_ptr += 4;
@@ -438,7 +441,6 @@
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     SmcContext *s = avctx->priv_data;
-    const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
     s->buf = buf;
     s->size = buf_size;
@@ -451,11 +453,6 @@
         return -1;
     }
 
-    if (pal) {
-        s->frame.palette_has_changed = 1;
-        memcpy(s->pal, pal, AVPALETTE_SIZE);
-    }
-
     smc_decode_stream(s);
 
     *data_size = sizeof(AVFrame);
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index f2690fb..3ef8dc4 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -663,6 +663,9 @@
   //this should be removed after libavcodec can handle more flexible picture types & ordering
   if(s->pict_type==AV_PICTURE_TYPE_B && s->last_picture_ptr==NULL) return buf_size;
 
+#if FF_API_HURRY_UP
+  if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return buf_size;
+#endif
   if(  (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
      ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
      || avctx->skip_frame >= AVDISCARD_ALL)
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 812ac96..92d84b0 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -986,6 +986,14 @@
     /* Skip B-frames if we do not have reference frames. */
     if (s->last_picture_ptr == NULL && s->pict_type == AV_PICTURE_TYPE_B)
         return 0;
+#if FF_API_HURRY_UP
+    /* Skip B-frames if we are in a hurry. */
+    if (avctx->hurry_up && s->pict_type == FF_B_TYPE)
+        return 0;
+    /* Skip everything if we are in a hurry >= 5. */
+    if (avctx->hurry_up >= 5)
+        return 0;
+#endif
     if (  (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
         ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
         || avctx->skip_frame >= AVDISCARD_ALL)
diff --git a/libavcodec/targa.c b/libavcodec/targa.c
index 41741ff..3125504 100644
--- a/libavcodec/targa.c
+++ b/libavcodec/targa.c
@@ -171,6 +171,13 @@
         stride = -p->linesize[0];
     }
 
+    if(avctx->pix_fmt == PIX_FMT_PAL8 && avctx->palctrl){
+        memcpy(p->data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
+        if(avctx->palctrl->palette_changed){
+            p->palette_has_changed = 1;
+            avctx->palctrl->palette_changed = 0;
+        }
+    }
     if(colors){
         size_t pal_size;
         if((colors + first_clr) > 256){
diff --git a/libavcodec/tscc.c b/libavcodec/tscc.c
index bc57ec7..b12a608 100644
--- a/libavcodec/tscc.c
+++ b/libavcodec/tscc.c
@@ -60,8 +60,6 @@
     unsigned char* decomp_buf;
     int height;
     z_stream zstream;
-
-    uint32_t pal[256];
 } CamtasiaContext;
 
 /*
@@ -110,13 +108,11 @@
 
     /* make the palette available on the way out */
     if (c->avctx->pix_fmt == PIX_FMT_PAL8) {
-        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-
-        if (pal) {
+        memcpy(c->pic.data[1], c->avctx->palctrl->palette, AVPALETTE_SIZE);
+        if (c->avctx->palctrl->palette_changed) {
             c->pic.palette_has_changed = 1;
-            memcpy(c->pal, pal, AVPALETTE_SIZE);
+            c->avctx->palctrl->palette_changed = 0;
         }
-        memcpy(c->pic.data[1], c->pal, AVPALETTE_SIZE);
     }
 
     *data_size = sizeof(AVFrame);
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index ac559d2..7247932 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -48,7 +48,7 @@
 static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
 static void *codec_mutex;
 
-void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
+void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
 {
     if(min_size < *size)
         return ptr;
@@ -64,7 +64,7 @@
     return ptr;
 }
 
-void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
+void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
 {
     void **p = ptr;
     if (min_size < *size)
@@ -94,6 +94,13 @@
     codec->next = NULL;
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+void register_avcodec(AVCodec *codec)
+{
+    avcodec_register(codec);
+}
+#endif
+
 unsigned avcodec_get_edge_width(void)
 {
     return EDGE_WIDTH;
@@ -223,6 +230,12 @@
     *width=FFALIGN(*width, align);
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
+    return av_image_check_size(w, h, 0, av_log_ctx);
+}
+#endif
+
 int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
     int i;
     int w= s->width;
@@ -576,6 +589,8 @@
     if (avctx->codec->encode) {
         int i;
         if (avctx->codec->sample_fmts) {
+            if (avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
+                avctx->sample_fmt = AV_SAMPLE_FMT_S16;
             for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
                 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
                     break;
@@ -727,6 +742,22 @@
     return pts;
 }
 
+#if FF_API_VIDEO_OLD
+int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
+                         int *got_picture_ptr,
+                         const uint8_t *buf, int buf_size)
+{
+    AVPacket avpkt;
+    av_init_packet(&avpkt);
+    avpkt.data = buf;
+    avpkt.size = buf_size;
+    // HACK for CorePNG to decode as normal PNG by default
+    avpkt.flags = AV_PKT_FLAG_KEY;
+
+    return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
+}
+#endif
+
 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
                          int *got_picture_ptr,
                          AVPacket *avpkt)
@@ -738,7 +769,6 @@
         return -1;
 
     if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
-        av_packet_split_side_data(avpkt);
         avctx->pkt = avpkt;
         if (HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
              ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
@@ -777,6 +807,20 @@
     return ret;
 }
 
+#if FF_API_AUDIO_OLD
+int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
+                         int *frame_size_ptr,
+                         const uint8_t *buf, int buf_size)
+{
+    AVPacket avpkt;
+    av_init_packet(&avpkt);
+    avpkt.data = buf;
+    avpkt.size = buf_size;
+
+    return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
+}
+#endif
+
 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
                          int *frame_size_ptr,
                          AVPacket *avpkt)
@@ -811,6 +855,20 @@
     return ret;
 }
 
+#if FF_API_SUBTITLE_OLD
+int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
+                            int *got_sub_ptr,
+                            const uint8_t *buf, int buf_size)
+{
+    AVPacket avpkt;
+    av_init_packet(&avpkt);
+    avpkt.data = buf;
+    avpkt.size = buf_size;
+
+    return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
+}
+#endif
+
 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
                             int *got_sub_ptr,
                             AVPacket *avpkt)
@@ -1243,6 +1301,20 @@
     return n;
 }
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+#include "libavutil/parseutils.h"
+
+int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
+{
+    return av_parse_video_size(width_ptr, height_ptr, str);
+}
+
+int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
+{
+    return av_parse_video_rate(frame_rate, arg);
+}
+#endif
+
 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
     int i;
     for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
@@ -1359,4 +1431,12 @@
     s->thread_count = thread_count;
     return ff_thread_init(s);
 }
+
+void avcodec_thread_free(AVCodecContext *s)
+{
+#if HAVE_THREADS
+    ff_thread_free(s);
+#endif
+}
+
 #endif
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index d9ff6a2..88607bf 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -3716,11 +3716,21 @@
     if(s->last_picture_ptr==NULL && (s->pict_type==AV_PICTURE_TYPE_B || s->dropable)){
         goto err;
     }
+#if FF_API_HURRY_UP
+    /* skip b frames if we are in a hurry */
+    if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return -1;//buf_size;
+#endif
     if(   (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
        || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
        ||  avctx->skip_frame >= AVDISCARD_ALL) {
         goto end;
     }
+#if FF_API_HURRY_UP
+    /* skip everything if we are in a hurry>=5 */
+    if(avctx->hurry_up>=5) {
+        goto err;
+    }
+#endif
 
     if(s->next_p_frame_damaged){
         if(s->pict_type==AV_PICTURE_TYPE_B)
diff --git a/libavcodec/vdpau.h b/libavcodec/vdpau.h
index 0dc6fb8..ab5f682 100644
--- a/libavcodec/vdpau.h
+++ b/libavcodec/vdpau.h
@@ -67,13 +67,6 @@
 
     int state; ///< Holds FF_VDPAU_STATE_* values.
 
-    /** Describe size/location of the compressed video data.
-        Set to 0 when freeing bitstream_buffers. */
-    int bitstream_buffers_allocated;
-    int bitstream_buffers_used;
-    /** The user is responsible for freeing this buffer using av_freep(). */
-    VdpBitstreamBuffer *bitstream_buffers;
-
     /** picture parameter information for all supported codecs */
     union VdpPictureInfo {
         VdpPictureInfoH264        h264;
@@ -81,6 +74,13 @@
         VdpPictureInfoVC1          vc1;
         VdpPictureInfoMPEG4Part2 mpeg4;
     } info;
+
+    /** Describe size/location of the compressed video data.
+        Set to 0 when freeing bitstream_buffers. */
+    int bitstream_buffers_allocated;
+    int bitstream_buffers_used;
+    /** The user is responsible for freeing this buffer using av_freep(). */
+    VdpBitstreamBuffer *bitstream_buffers;
 };
 
 /* @}*/
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 100c06d..7cbf020 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -20,8 +20,8 @@
 #ifndef AVCODEC_VERSION_H
 #define AVCODEC_VERSION_H
 
-#define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR  7
+#define LIBAVCODEC_VERSION_MAJOR 52
+#define LIBAVCODEC_VERSION_MINOR 122
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@@ -41,12 +41,45 @@
 #ifndef FF_API_PALETTE_CONTROL
 #define FF_API_PALETTE_CONTROL  (LIBAVCODEC_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_MM_FLAGS
+#define FF_API_MM_FLAGS         (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_OPT_SHOW
+#define FF_API_OPT_SHOW         (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_AUDIO_OLD
+#define FF_API_AUDIO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_VIDEO_OLD
+#define FF_API_VIDEO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_SUBTITLE_OLD
+#define FF_API_SUBTITLE_OLD     (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_USE_LPC
+#define FF_API_USE_LPC          (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_SET_STRING_OLD
+#define FF_API_SET_STRING_OLD   (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_INOFFICIAL
+#define FF_API_INOFFICIAL       (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_OLD_SAMPLE_FMT
 #define FF_API_OLD_SAMPLE_FMT   (LIBAVCODEC_VERSION_MAJOR < 54)
 #endif
 #ifndef FF_API_OLD_AUDIOCONVERT
 #define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_HURRY_UP
+#define FF_API_HURRY_UP         (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_RATE_EMU
+#define FF_API_RATE_EMU         (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_MB_Q
+#define FF_API_MB_Q             (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_ANTIALIAS_ALGO
 #define FF_API_ANTIALIAS_ALGO   (LIBAVCODEC_VERSION_MAJOR < 54)
 #endif
diff --git a/libavcodec/xvmc.h b/libavcodec/xvmc.h
index 93ad8bb..29c010b 100644
--- a/libavcodec/xvmc.h
+++ b/libavcodec/xvmc.h
@@ -25,6 +25,11 @@
 
 #include "avcodec.h"
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
+#define AV_XVMC_STATE_DISPLAY_PENDING          1  /**  the surface should be shown, the video driver manipulates this */
+#define AV_XVMC_STATE_PREDICTION               2  /**  the surface is needed for prediction, the codec manipulates this */
+#define AV_XVMC_STATE_OSD_SOURCE               4  /**  the surface is needed for subpicture rendering */
+#endif
 #define AV_XVMC_ID                    0x1DC711C0  /**< special value to ensure that regular pixel routines haven't corrupted the struct
                                                        the number is 1337 speak for the letters IDCT MCo (motion compensation) */
 
@@ -146,6 +151,22 @@
                         of coded blocks it contains.
     */
     int             next_free_data_block_num;
+
+/** extensions may be placed here */
+#if LIBAVCODEC_VERSION_MAJOR < 53
+//@{
+    /** State flags used to work around limitations in the MPlayer video system.
+        0   - Surface is not used.
+        1   - Surface is still held in application to be displayed or is
+              still visible.
+        2   - Surface is still held in libavcodec buffer for prediction.
+    */
+    int             state;
+
+    /** pointer to the surface where the subpicture is rendered */
+    void*           p_osd_target_surface_render;
+//}@
+#endif
 };
 
 #endif /* AVCODEC_XVMC_H */
diff --git a/libavdevice/avdevice.h b/libavdevice/avdevice.h
index e49e5b7..0661bcb 100644
--- a/libavdevice/avdevice.h
+++ b/libavdevice/avdevice.h
@@ -22,9 +22,9 @@
 #include "libavutil/avutil.h"
 #include "libavformat/avformat.h"
 
-#define LIBAVDEVICE_VERSION_MAJOR 53
-#define LIBAVDEVICE_VERSION_MINOR  1
-#define LIBAVDEVICE_VERSION_MICRO  1
+#define LIBAVDEVICE_VERSION_MAJOR 52
+#define LIBAVDEVICE_VERSION_MINOR  5
+#define LIBAVDEVICE_VERSION_MICRO  0
 
 #define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
                                                LIBAVDEVICE_VERSION_MINOR, \
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index c276f30..1e6a08b 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -25,8 +25,8 @@
 #include "libavutil/avutil.h"
 #include "libavutil/samplefmt.h"
 
-#define LIBAVFILTER_VERSION_MAJOR  2
-#define LIBAVFILTER_VERSION_MINOR 23
+#define LIBAVFILTER_VERSION_MAJOR  1
+#define LIBAVFILTER_VERSION_MINOR 80
 #define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_libopencv.c b/libavfilter/vf_libopencv.c
index e1b51c5..69a2cbc 100644
--- a/libavfilter/vf_libopencv.c
+++ b/libavfilter/vf_libopencv.c
@@ -158,7 +158,7 @@
         }
         w++;
     }
-    if (*rows > (SIZE_MAX / sizeof(int) / *cols)) {
+    if (*rows > (FF_INTERNAL_MEM_TYPE_MAX_VALUE / (sizeof(int)) / *cols)) {
         av_log(log_ctx, AV_LOG_ERROR, "File with size %dx%d is too big\n",
                *rows, *cols);
         return AVERROR_INVALIDDATA;
diff --git a/libavformat/Makefile b/libavformat/Makefile
index e5ec44b..05f5246 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -10,6 +10,7 @@
        id3v1.o              \
        id3v2.o              \
        metadata.o           \
+       metadata_compat.o    \
        options.o            \
        os_support.o         \
        sdp.o                \
diff --git a/libavformat/applehttp.c b/libavformat/applehttp.c
index ddf97e9..7c5ebc7 100644
--- a/libavformat/applehttp.c
+++ b/libavformat/applehttp.c
@@ -208,7 +208,7 @@
 
     if (!in) {
         close_in = 1;
-        if ((ret = avio_open(&in, url, AVIO_FLAG_READ)) < 0)
+        if ((ret = avio_open(&in, url, AVIO_RDONLY)) < 0)
             return ret;
     }
 
@@ -321,13 +321,13 @@
 {
     struct segment *seg = var->segments[var->cur_seq_no - var->start_seq_no];
     if (seg->key_type == KEY_NONE) {
-        return ffurl_open(&var->input, seg->url, AVIO_FLAG_READ);
+        return ffurl_open(&var->input, seg->url, AVIO_RDONLY);
     } else if (seg->key_type == KEY_AES_128) {
         char iv[33], key[33], url[MAX_URL_SIZE];
         int ret;
         if (strcmp(seg->key, var->key_url)) {
             URLContext *uc;
-            if (ffurl_open(&uc, seg->key, AVIO_FLAG_READ) == 0) {
+            if (ffurl_open(&uc, seg->key, AVIO_RDONLY) == 0) {
                 if (ffurl_read_complete(uc, var->key, sizeof(var->key))
                     != sizeof(var->key)) {
                     av_log(NULL, AV_LOG_ERROR, "Unable to read key file %s\n",
@@ -347,7 +347,7 @@
             snprintf(url, sizeof(url), "crypto+%s", seg->url);
         else
             snprintf(url, sizeof(url), "crypto:%s", seg->url);
-        if ((ret = ffurl_alloc(&var->input, url, AVIO_FLAG_READ)) < 0)
+        if ((ret = ffurl_alloc(&var->input, url, AVIO_RDONLY)) < 0)
             return ret;
         av_set_string3(var->input->priv_data, "key", key, 0, NULL);
         av_set_string3(var->input->priv_data, "iv", iv, 0, NULL);
@@ -395,7 +395,9 @@
             goto reload;
         }
 
-        ret = open_input(v);
+        ret = ffurl_open(&v->input,
+                         v->segments[v->cur_seq_no - v->start_seq_no]->url,
+                         AVIO_RDONLY);
         if (ret < 0)
             return ret;
     }
diff --git a/libavformat/applehttpproto.c b/libavformat/applehttpproto.c
index bb5029d..e0bc607 100644
--- a/libavformat/applehttpproto.c
+++ b/libavformat/applehttpproto.c
@@ -114,7 +114,7 @@
     char line[1024];
     const char *ptr;
 
-    if ((ret = avio_open(&in, url, AVIO_FLAG_READ)) < 0)
+    if ((ret = avio_open(&in, url, AVIO_RDONLY)) < 0)
         return ret;
 
     read_chomp_line(in, line, sizeof(line));
@@ -179,7 +179,7 @@
     int ret, i;
     const char *nested_url;
 
-    if (flags & AVIO_FLAG_WRITE)
+    if (flags & (AVIO_WRONLY | AVIO_RDWR))
         return AVERROR(ENOSYS);
 
     s = av_mallocz(sizeof(AppleHTTPContext));
@@ -194,7 +194,7 @@
         av_strlcpy(s->playlisturl, "http://", sizeof(s->playlisturl));
         av_strlcat(s->playlisturl, nested_url, sizeof(s->playlisturl));
     } else {
-        av_log(h, AV_LOG_ERROR, "Unsupported url %s\n", uri);
+        av_log(NULL, AV_LOG_ERROR, "Unsupported url %s\n", uri);
         ret = AVERROR(EINVAL);
         goto fail;
     }
@@ -217,7 +217,7 @@
     }
 
     if (s->n_segments == 0) {
-        av_log(h, AV_LOG_WARNING, "Empty playlist\n");
+        av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
         ret = AVERROR(EIO);
         goto fail;
     }
@@ -257,7 +257,7 @@
                 return ret;
     }
     if (s->cur_seq_no < s->start_seq_no) {
-        av_log(h, AV_LOG_WARNING,
+        av_log(NULL, AV_LOG_WARNING,
                "skipping %d segments ahead, expired from playlist\n",
                s->start_seq_no - s->cur_seq_no);
         s->cur_seq_no = s->start_seq_no;
@@ -273,12 +273,12 @@
         goto retry;
     }
     url = s->segments[s->cur_seq_no - s->start_seq_no]->url,
-    av_log(h, AV_LOG_DEBUG, "opening %s\n", url);
-    ret = ffurl_open(&s->seg_hd, url, AVIO_FLAG_READ);
+    av_log(NULL, AV_LOG_DEBUG, "opening %s\n", url);
+    ret = ffurl_open(&s->seg_hd, url, AVIO_RDONLY);
     if (ret < 0) {
         if (url_interrupt_cb())
             return AVERROR_EXIT;
-        av_log(h, AV_LOG_WARNING, "Unable to open %s\n", url);
+        av_log(NULL, AV_LOG_WARNING, "Unable to open %s\n", url);
         s->cur_seq_no++;
         goto retry;
     }
diff --git a/libavformat/asf.h b/libavformat/asf.h
index 3f6783b..c3107f4 100644
--- a/libavformat/asf.h
+++ b/libavformat/asf.h
@@ -45,8 +45,6 @@
 
     uint16_t stream_language_index;
 
-    int      palette_changed;
-    uint32_t palette[256];
 } ASFStream;
 
 typedef struct {
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index be8885d..0fb04c4 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -359,14 +359,15 @@
         /* This is true for all paletted codecs implemented in ffmpeg */
         if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
             int av_unused i;
+            st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
 #if HAVE_BIGENDIAN
             for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
-                asf_st->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
+                st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
 #else
-            memcpy(asf_st->palette, st->codec->extradata,
-                   FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
+            memcpy(st->codec->palctrl->palette, st->codec->extradata,
+                    FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
 #endif
-            asf_st->palette_changed = 1;
+            st->codec->palctrl->palette_changed = 1;
         }
 
         st->codec->codec_tag = tag1;
@@ -970,17 +971,6 @@
             asf_st->pkt.stream_index = asf->stream_index;
             asf_st->pkt.pos =
             asf_st->packet_pos= asf->packet_pos;
-            if (asf_st->pkt.data && asf_st->palette_changed) {
-                uint8_t *pal;
-                pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
-                                              AVPALETTE_SIZE);
-                if (!pal) {
-                    av_log(s, AV_LOG_ERROR, "Cannot append palette to packet\n");
-                } else {
-                    memcpy(pal, asf_st->palette, AVPALETTE_SIZE);
-                    asf_st->palette_changed = 0;
-                }
-            }
 //printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n",
 //asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & AV_PKT_FLAG_KEY,
 //s->streams[asf->stream_index]->codec->codec_type == AVMEDIA_TYPE_AUDIO, asf->packet_obj_size);
@@ -1137,8 +1127,14 @@
 
 static int asf_read_close(AVFormatContext *s)
 {
+    int i;
     asf_reset_header(s);
 
+    for(i=0;i<s->nb_streams;i++) {
+        AVStream *st = s->streams[i];
+        av_free(st->codec->palctrl);
+    }
+
     return 0;
 }
 
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 3d4e132..063dcb5 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -144,6 +144,20 @@
 attribute_deprecated AVDictionaryEntry *
 av_metadata_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
 
+#if FF_API_OLD_METADATA
+/**
+ * Set the given tag in *pm, overwriting an existing tag.
+ *
+ * @param pm pointer to a pointer to a metadata struct. If *pm is NULL
+ * a metadata struct is allocated and put in *pm.
+ * @param key tag key to add to *pm (will be av_strduped)
+ * @param value tag value to add to *pm (will be av_strduped)
+ * @return >= 0 on success otherwise an error code <0
+ * @deprecated Use av_metadata_set2() instead.
+ */
+attribute_deprecated int av_metadata_set(AVMetadata **pm, const char *key, const char *value);
+#endif
+
 /**
  * Set the given tag in *pm, overwriting an existing tag.
  *
@@ -256,6 +270,10 @@
                                                                   immediately (RTSP only). */
     attribute_deprecated unsigned int prealloced_context:1;
 #endif
+#if FF_API_PARAMETERS_CODEC_ID
+    attribute_deprecated enum CodecID video_codec_id;
+    attribute_deprecated enum CodecID audio_codec_id;
+#endif
 } AVFormatParameters;
 
 //! Demuxer will use avio_open, no opened file should be provided by the caller.
@@ -548,6 +566,10 @@
      */
     int64_t duration;
 
+#if FF_API_OLD_METADATA
+    attribute_deprecated char language[4]; /**< ISO 639-2/B 3-letter language code (empty string if undefined) */
+#endif
+
     /* av_read_frame() support */
     enum AVStreamParseType need_parsing;
     struct AVCodecParserContext *parser;
@@ -563,6 +585,14 @@
 
     int64_t nb_frames;                 ///< number of frames in this stream if known or 0
 
+#if FF_API_LAVF_UNUSED
+    attribute_deprecated int64_t unused[4+1];
+#endif
+
+#if FF_API_OLD_METADATA
+    attribute_deprecated char *filename; /**< source filename of the stream */
+#endif
+
     int disposition; /**< AV_DISPOSITION_* bit field */
 
     AVProbeData probe_data;
@@ -653,6 +683,10 @@
  */
 typedef struct AVProgram {
     int            id;
+#if FF_API_OLD_METADATA
+    attribute_deprecated char           *provider_name; ///< network name for DVB streams
+    attribute_deprecated char           *name;          ///< service name for DVB streams
+#endif
     int            flags;
     enum AVDiscard discard;        ///< selects which program to discard and which to feed to the caller
     unsigned int   *stream_index;
@@ -671,9 +705,16 @@
     int id;                 ///< unique ID to identify the chapter
     AVRational time_base;   ///< time base in which the start/end timestamps are specified
     int64_t start, end;     ///< chapter start/end time in time_base units
+#if FF_API_OLD_METADATA
+    attribute_deprecated char *title;            ///< chapter title
+#endif
     AVDictionary *metadata;
 } AVChapter;
 
+#if FF_API_MAX_STREAMS
+#define MAX_STREAMS 20
+#endif
+
 /**
  * Format I/O context.
  * New fields can be added to the end with minor version bumps.
@@ -689,10 +730,24 @@
     void *priv_data;
     AVIOContext *pb;
     unsigned int nb_streams;
+#if FF_API_MAX_STREAMS
+    AVStream *streams[MAX_STREAMS];
+#else
     AVStream **streams;
+#endif
     char filename[1024]; /**< input or output filename */
     /* stream info */
     int64_t timestamp;
+#if FF_API_OLD_METADATA
+    attribute_deprecated char title[512];
+    attribute_deprecated char author[512];
+    attribute_deprecated char copyright[512];
+    attribute_deprecated char comment[512];
+    attribute_deprecated char album[512];
+    attribute_deprecated int year;  /**< ID3 year, 0 if none */
+    attribute_deprecated int track; /**< track number, 0 if none */
+    attribute_deprecated char genre[32]; /**< ID3 genre */
+#endif
 
     int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */
     /* private data for pts handling (do not modify directly). */
@@ -732,9 +787,17 @@
 
     /* av_read_frame() support */
     AVStream *cur_st;
+#if FF_API_LAVF_UNUSED
+    const uint8_t *cur_ptr_deprecated;
+    int cur_len_deprecated;
+    AVPacket cur_pkt_deprecated;
+#endif
 
     /* av_seek_frame() support */
     int64_t data_offset; /**< offset of the first packet */
+#if FF_API_INDEX_BUILT
+    attribute_deprecated int index_built;
+#endif
 
     int mux_rate;
     unsigned int packet_size;
@@ -874,6 +937,11 @@
     struct AVPacketList *next;
 } AVPacketList;
 
+#if FF_API_FIRST_FORMAT
+attribute_deprecated extern AVInputFormat *first_iformat;
+attribute_deprecated extern AVOutputFormat *first_oformat;
+#endif
+
 /**
  * If f is NULL, returns the first registered input format,
  * if f is non-NULL, returns the next registered input format after f
@@ -898,6 +966,18 @@
 /* utils.c */
 void av_register_input_format(AVInputFormat *format);
 void av_register_output_format(AVOutputFormat *format);
+#if FF_API_GUESS_FORMAT
+attribute_deprecated AVOutputFormat *guess_stream_format(const char *short_name,
+                                    const char *filename,
+                                    const char *mime_type);
+
+/**
+ * @deprecated Use av_guess_format() instead.
+ */
+attribute_deprecated AVOutputFormat *guess_format(const char *short_name,
+                                                  const char *filename,
+                                                  const char *mime_type);
+#endif
 
 /**
  * Return the output format in the list of registered output formats
@@ -1114,6 +1194,12 @@
  */
 int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options);
 
+#if FF_API_ALLOC_FORMAT_CONTEXT
+/**
+ * @deprecated Use avformat_alloc_context() instead.
+ */
+attribute_deprecated AVFormatContext *av_alloc_format_context(void);
+#endif
 int av_demuxer_open(AVFormatContext *ic, AVFormatParameters *ap);
 
 /**
@@ -1540,6 +1626,22 @@
                     const char *url,
                     int is_output);
 
+#if FF_API_PARSE_FRAME_PARAM
+/**
+ * Parse width and height out of string str.
+ * @deprecated Use av_parse_video_frame_size instead.
+ */
+attribute_deprecated int parse_image_size(int *width_ptr, int *height_ptr,
+                                          const char *str);
+
+/**
+ * Convert framerate from a string to a fraction.
+ * @deprecated Use av_parse_video_frame_rate instead.
+ */
+attribute_deprecated int parse_frame_rate(int *frame_rate, int *frame_rate_base,
+                                          const char *arg);
+#endif
+
 #if FF_API_PARSE_DATE
 /**
  * Parse datestr and return a corresponding number of microseconds.
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 7394bbc..a06ed54 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -611,18 +611,15 @@
                     /* This code assumes that extradata contains only palette. */
                     /* This is true for all paletted codecs implemented in FFmpeg. */
                     if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
-                        int pal_size = (1 << st->codec->bits_per_coded_sample) << 2;
-                        const uint8_t *pal_src;
-
-                        pal_size = FFMIN(pal_size, st->codec->extradata_size);
-                        pal_src = st->codec->extradata + st->codec->extradata_size - pal_size;
+                        st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
 #if HAVE_BIGENDIAN
-                        for (i = 0; i < pal_size/4; i++)
-                            ast->pal[i] = AV_RL32(pal_src+4*i);
+                        for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
+                            st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
 #else
-                        memcpy(ast->pal, pal_src, pal_size);
+                        memcpy(st->codec->palctrl->palette, st->codec->extradata,
+                               FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
 #endif
-                        ast->has_pal = 1;
+                        st->codec->palctrl->palette_changed = 1;
                     }
 
                     print_tag("video", tag1, 0);
@@ -964,14 +961,14 @@
             return err;
 
         if(ast->has_pal && pkt->data && pkt->size<(unsigned)INT_MAX/2){
-            uint8_t *pal;
-            pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
-            if(!pal){
-                av_log(s, AV_LOG_ERROR, "Failed to allocate data for palette\n");
-            }else{
-                memcpy(pal, ast->pal, AVPALETTE_SIZE);
-                ast->has_pal = 0;
-            }
+            void *ptr= av_realloc(pkt->data, pkt->size + 4*256 + FF_INPUT_BUFFER_PADDING_SIZE);
+            if(ptr){
+            ast->has_pal=0;
+            pkt->size += 4*256;
+            pkt->data= ptr;
+                memcpy(pkt->data + pkt->size - 4*256, ast->pal, 4*256);
+            }else
+                av_log(s, AV_LOG_ERROR, "Failed to append palette\n");
         }
 
         if (CONFIG_DV_DEMUXER && avi->dv_demux) {
@@ -1401,6 +1398,7 @@
     for(i=0;i<s->nb_streams;i++) {
         AVStream *st = s->streams[i];
         AVIStream *ast = st->priv_data;
+        av_free(st->codec->palctrl);
         if (ast) {
             if (ast->sub_ctx) {
                 av_freep(&ast->sub_ctx->pb);
diff --git a/libavformat/avio.c b/libavformat/avio.c
index b2926c0..8064479 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -30,6 +30,7 @@
 #endif
 #include "url.h"
 
+#if FF_API_URL_CLASS
 /** @name Logging context. */
 /*@{*/
 static const char *urlcontext_to_name(void *ptr)
@@ -46,6 +47,7 @@
     .version        = LIBAVUTIL_VERSION_INT,
 };
 /*@}*/
+#endif
 
 static int default_interrupt_cb(void);
 
@@ -83,6 +85,29 @@
     return 0;
 }
 
+#if FF_API_REGISTER_PROTOCOL
+/* The layout of URLProtocol as of when major was bumped to 52 */
+struct URLProtocol_compat {
+    const char *name;
+    int (*url_open)(URLContext *h, const char *filename, int flags);
+    int (*url_read)(URLContext *h, unsigned char *buf, int size);
+    int (*url_write)(URLContext *h, unsigned char *buf, int size);
+    int64_t (*url_seek)(URLContext *h, int64_t pos, int whence);
+    int (*url_close)(URLContext *h);
+    struct URLProtocol *next;
+};
+
+int av_register_protocol(URLProtocol *protocol)
+{
+    return ffurl_register_protocol(protocol, sizeof(struct URLProtocol_compat));
+}
+
+int register_protocol(URLProtocol *protocol)
+{
+    return ffurl_register_protocol(protocol, sizeof(struct URLProtocol_compat));
+}
+#endif
+
 static int url_alloc_for_protocol (URLContext **puc, struct URLProtocol *up,
                                    const char *filename, int flags)
 {
@@ -98,7 +123,9 @@
         err = AVERROR(ENOMEM);
         goto fail;
     }
+#if FF_API_URL_CLASS
     uc->av_class = &urlcontext_class;
+#endif
     uc->filename = (char *) &uc[1];
     strcpy(uc->filename, filename);
     uc->prot = up;
@@ -130,7 +157,7 @@
         return err;
     uc->is_connected = 1;
     //We must be careful here as ffurl_seek() could be slow, for example for http
-    if(   (uc->flags & AVIO_FLAG_WRITE)
+    if(   (uc->flags & (AVIO_WRONLY | AVIO_RDWR))
        || !strcmp(uc->prot->name, "file"))
         if(!uc->is_streamed && ffurl_seek(uc, 0, SEEK_SET) < 0)
             uc->is_streamed= 1;
@@ -290,21 +317,21 @@
 
 int ffurl_read(URLContext *h, unsigned char *buf, int size)
 {
-    if (!(h->flags & AVIO_FLAG_READ))
+    if (h->flags & AVIO_WRONLY)
         return AVERROR(EIO);
     return retry_transfer_wrapper(h, buf, size, 1, h->prot->url_read);
 }
 
 int ffurl_read_complete(URLContext *h, unsigned char *buf, int size)
 {
-    if (!(h->flags & AVIO_FLAG_READ))
+    if (h->flags & AVIO_WRONLY)
         return AVERROR(EIO);
     return retry_transfer_wrapper(h, buf, size, size, h->prot->url_read);
 }
 
 int ffurl_write(URLContext *h, const unsigned char *buf, int size)
 {
-    if (!(h->flags & AVIO_FLAG_WRITE))
+    if (!(h->flags & (AVIO_WRONLY | AVIO_RDWR)))
         return AVERROR(EIO);
     /* avoid sending too big packets */
     if (h->max_packet_size && size > h->max_packet_size)
@@ -343,7 +370,7 @@
 int url_exist(const char *filename)
 {
     URLContext *h;
-    if (ffurl_open(&h, filename, AVIO_FLAG_READ) < 0)
+    if (ffurl_open(&h, filename, AVIO_RDONLY) < 0)
         return 0;
     ffurl_close(h);
     return 1;
diff --git a/libavformat/avio.h b/libavformat/avio.h
index e838118..fb04e43 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -101,7 +101,9 @@
  * @deprecated This struct will be made private
  */
 typedef struct URLContext {
+#if FF_API_URL_CLASS
     const AVClass *av_class; ///< information for av_log(). Set by url_open().
+#endif
     struct URLProtocol *prot;
     int flags;
     int is_streamed;  /**< true if streamed (no seek possible), default = false */
@@ -150,9 +152,9 @@
  * constants, optionally ORed with other flags.
  * @{
  */
-#define URL_RDONLY 1  /**< read-only */
-#define URL_WRONLY 2  /**< write-only */
-#define URL_RDWR   (URL_RDONLY|URL_WRONLY)  /**< read-write */
+#define URL_RDONLY 0  /**< read-only */
+#define URL_WRONLY 1  /**< write-only */
+#define URL_RDWR   2  /**< read-write */
 /**
  * @}
  */
@@ -344,7 +346,7 @@
 #endif // FF_API_OLD_AVIO
 
 /**
- * Return AVIO_FLAG_* access flags corresponding to the access permissions
+ * Return AVIO_* access flags corresponding to the access permissions
  * of the resource in url, or a negative value corresponding to an
  * AVERROR code in case of failure. The returned access flags are
  * masked by the value in flags.
@@ -354,6 +356,9 @@
  * one call to another. Thus you should not trust the returned value,
  * unless you are sure that no other processes are accessing the
  * checked resource.
+ *
+ * @note This function is slightly broken until next major bump
+ *       because of AVIO_RDONLY == 0. Don't use it until then.
  */
 int avio_check(const char *url, int flags);
 
@@ -365,6 +370,22 @@
  */
 void avio_set_interrupt_cb(int (*interrupt_cb)(void));
 
+#if FF_API_REGISTER_PROTOCOL
+extern URLProtocol *first_protocol;
+#endif
+
+#if FF_API_REGISTER_PROTOCOL
+/**
+ * @deprecated Use av_register_protocol() instead.
+ */
+attribute_deprecated int register_protocol(URLProtocol *protocol);
+
+/**
+ * @deprecated Use av_register_protocol2() instead.
+ */
+attribute_deprecated int av_register_protocol(URLProtocol *protocol);
+#endif
+
 /**
  * Allocate and initialize an AVIOContext for buffered I/O. It must be later
  * freed with av_free().
@@ -522,15 +543,29 @@
 int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
 
 
+#if FF_API_URL_RESETBUF
+/** Reset the buffer for reading or writing.
+ * @note Will drop any data currently in the buffer without transmitting it.
+ * @param flags URL_RDONLY to set up the buffer for reading, or URL_WRONLY
+ *        to set up the buffer for writing. */
+int url_resetbuf(AVIOContext *s, int flags);
+#endif
+
 /**
  * @name URL open modes
  * The flags argument to avio_open must be one of the following
  * constants, optionally ORed with other flags.
  * @{
  */
-#define AVIO_FLAG_READ  1                                      /**< read-only */
-#define AVIO_FLAG_WRITE 2                                      /**< write-only */
-#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE)  /**< read-write pseudo flag */
+#if LIBAVFORMAT_VERSION_MAJOR < 53
+#define AVIO_RDONLY 0  /**< read-only */
+#define AVIO_WRONLY 1  /**< write-only */
+#define AVIO_RDWR   2  /**< read-write */
+#else
+#define AVIO_RDONLY 1  /**< read-only */
+#define AVIO_WRONLY 2  /**< write-only */
+#define AVIO_RDWR   4  /**< read-write */
+#endif
 /**
  * @}
  */
@@ -547,7 +582,11 @@
  * Warning: non-blocking protocols is work-in-progress; this flag may be
  * silently ignored.
  */
+#if LIBAVFORMAT_VERSION_MAJOR < 53
+#define AVIO_FLAG_NONBLOCK 4
+#else
 #define AVIO_FLAG_NONBLOCK 8
+#endif
 
 /**
  * Create and initialize a AVIOContext for accessing the
@@ -591,6 +630,10 @@
  */
 int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
 
+#if FF_API_UDP_GET_FILE
+int udp_get_file_handle(URLContext *h);
+#endif
+
 /**
  * Iterate through names of available protocols.
  * @note it is recommanded to use av_protocol_next() instead of this
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 1f79531..626261a 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -38,7 +38,9 @@
 #define SHORT_SEEK_THRESHOLD 4096
 
 static void fill_buffer(AVIOContext *s);
+#if !FF_API_URL_RESETBUF
 static int url_resetbuf(AVIOContext *s, int flags);
+#endif
 
 int ffio_init_context(AVIOContext *s,
                   unsigned char *buffer,
@@ -53,7 +55,7 @@
     s->buffer_size = buffer_size;
     s->buf_ptr = buffer;
     s->opaque = opaque;
-    url_resetbuf(s, write_flag ? AVIO_FLAG_WRITE : AVIO_FLAG_READ);
+    url_resetbuf(s, write_flag ? AVIO_WRONLY : AVIO_RDONLY);
     s->write_packet = write_packet;
     s->read_packet = read_packet;
     s->seek = seek;
@@ -857,7 +859,7 @@
     }
 
     if (ffio_init_context(*s, buffer, buffer_size,
-                      h->flags & AVIO_FLAG_WRITE, h,
+                      (h->flags & AVIO_WRONLY || h->flags & AVIO_RDWR), h,
                       (void*)ffurl_read, (void*)ffurl_write, (void*)ffurl_seek) < 0) {
         av_free(buffer);
         av_freep(s);
@@ -886,15 +888,24 @@
     s->buffer = buffer;
     s->buffer_size = buf_size;
     s->buf_ptr = buffer;
-    url_resetbuf(s, s->write_flag ? AVIO_FLAG_WRITE : AVIO_FLAG_READ);
+    url_resetbuf(s, s->write_flag ? AVIO_WRONLY : AVIO_RDONLY);
     return 0;
 }
 
+#if FF_API_URL_RESETBUF
+int url_resetbuf(AVIOContext *s, int flags)
+#else
 static int url_resetbuf(AVIOContext *s, int flags)
+#endif
 {
-    assert(flags == AVIO_FLAG_WRITE || flags == AVIO_FLAG_READ);
+#if FF_API_URL_RESETBUF
+    if (flags & AVIO_RDWR)
+        return AVERROR(EINVAL);
+#else
+    assert(flags == AVIO_WRONLY || flags == AVIO_RDONLY);
+#endif
 
-    if (flags & AVIO_FLAG_WRITE) {
+    if (flags & AVIO_WRONLY) {
         s->buf_end = s->buffer + s->buffer_size;
         s->write_flag = 1;
     } else {
@@ -1052,7 +1063,7 @@
     if(!*s)
         return AVERROR(ENOMEM);
     ret = ffio_init_context(*s, buf, buf_size,
-                            flags & AVIO_FLAG_WRITE,
+                        (flags & AVIO_WRONLY || flags & AVIO_RDWR),
                         NULL, NULL, NULL, NULL);
     if(ret != 0)
         av_freep(s);
diff --git a/libavformat/crypto.c b/libavformat/crypto.c
index 5e7ee1e..d52a503 100644
--- a/libavformat/crypto.c
+++ b/libavformat/crypto.c
@@ -76,12 +76,12 @@
         ret = AVERROR(EINVAL);
         goto err;
     }
-    if (flags & AVIO_FLAG_WRITE) {
+    if (flags == AVIO_WRONLY) {
         av_log(h, AV_LOG_ERROR, "Only decryption is supported currently\n");
         ret = AVERROR(ENOSYS);
         goto err;
     }
-    if ((ret = ffurl_open(&c->hd, nested_url, AVIO_FLAG_READ)) < 0) {
+    if ((ret = ffurl_open(&c->hd, nested_url, AVIO_RDONLY)) < 0) {
         av_log(h, AV_LOG_ERROR, "Unable to open input\n");
         goto err;
     }
diff --git a/libavformat/file.c b/libavformat/file.c
index a9c5281..88b5527 100644
--- a/libavformat/file.c
+++ b/libavformat/file.c
@@ -58,8 +58,9 @@
     if (ret < 0)
         return AVERROR(errno);
 
-    ret |= st.st_mode&S_IRUSR ? mask&AVIO_FLAG_READ  : 0;
-    ret |= st.st_mode&S_IWUSR ? mask&AVIO_FLAG_WRITE : 0;
+    ret |= st.st_mode&S_IRUSR ? mask&AVIO_RDONLY : 0;
+    ret |= st.st_mode&S_IWUSR ? mask&AVIO_WRONLY : 0;
+    ret |= st.st_mode&S_IWUSR && st.st_mode&S_IRUSR ? mask&AVIO_RDWR : 0;
 
     return ret;
 }
@@ -73,9 +74,9 @@
 
     av_strstart(filename, "file:", &filename);
 
-    if (flags & AVIO_FLAG_WRITE && flags & AVIO_FLAG_READ) {
+    if (flags & AVIO_RDWR) {
         access = O_CREAT | O_TRUNC | O_RDWR;
-    } else if (flags & AVIO_FLAG_WRITE) {
+    } else if (flags & AVIO_WRONLY) {
         access = O_CREAT | O_TRUNC | O_WRONLY;
     } else {
         access = O_RDONLY;
@@ -131,7 +132,7 @@
 
     fd = strtol(filename, &final, 10);
     if((filename == final) || *final ) {/* No digits found, or something like 10ab */
-        if (flags & AVIO_FLAG_WRITE) {
+        if (flags & AVIO_WRONLY) {
             fd = 1;
         } else {
             fd = 0;
diff --git a/libavformat/gopher.c b/libavformat/gopher.c
index 9eeffac..3ab7357 100644
--- a/libavformat/gopher.c
+++ b/libavformat/gopher.c
@@ -50,7 +50,7 @@
             if (!path) return AVERROR(EINVAL);
             break;
         default:
-            av_log(h, AV_LOG_WARNING,
+            av_log(NULL, AV_LOG_WARNING,
                    "Gopher protocol type '%c' not supported yet!\n",
                    *path);
             return AVERROR(EINVAL);
@@ -100,7 +100,7 @@
     ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
 
     s->hd = NULL;
-    err = ffurl_open(&s->hd, buf, AVIO_FLAG_READ_WRITE);
+    err = ffurl_open(&s->hd, buf, AVIO_RDWR);
     if (err < 0)
         goto fail;
 
diff --git a/libavformat/http.c b/libavformat/http.c
index 518c47d..d66f730 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -73,7 +73,7 @@
     int len = strlen(headers);
 
     if (len && strcmp("\r\n", headers + len - 2))
-        av_log(h, AV_LOG_ERROR, "No trailing CRLF found in HTTP header.\n");
+        av_log(NULL, AV_LOG_ERROR, "No trailing CRLF found in HTTP header.\n");
 
     av_strlcpy(s->headers, headers, sizeof(s->headers));
 }
@@ -127,7 +127,7 @@
         port = 80;
 
     ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
-    err = ffurl_open(&hd, buf, AVIO_FLAG_READ_WRITE);
+    err = ffurl_open(&hd, buf, AVIO_RDWR);
     if (err < 0)
         goto fail;
 
@@ -235,7 +235,7 @@
          * don't abort until all headers have been parsed. */
         if (s->http_code >= 400 && s->http_code < 600 && s->http_code != 401) {
             end += strspn(end, SPACE_CHARS);
-            av_log(h, AV_LOG_WARNING, "HTTP error %d %s\n",
+            av_log(NULL, AV_LOG_WARNING, "HTTP error %d %s\n",
                    s->http_code, end);
             return -1;
         }
@@ -301,7 +301,7 @@
 
 
     /* send http header */
-    post = h->flags & AVIO_FLAG_WRITE;
+    post = h->flags & AVIO_WRONLY;
     authstr = ff_http_auth_create_response(&s->auth_state, auth, path,
                                         post ? "POST" : "GET");
 
@@ -456,7 +456,7 @@
     HTTPContext *s = h->priv_data;
 
     /* signal end of chunked encoding if used */
-    if ((h->flags & AVIO_FLAG_WRITE) && s->chunksize != -1) {
+    if ((h->flags & AVIO_WRONLY) && s->chunksize != -1) {
         ret = ffurl_write(s->hd, footer, sizeof(footer) - 1);
         ret = ret > 0 ? 0 : ret;
     }
diff --git a/libavformat/idcin.c b/libavformat/idcin.c
index baff2d4..fb07788 100644
--- a/libavformat/idcin.c
+++ b/libavformat/idcin.c
@@ -86,6 +86,8 @@
     int audio_present;
 
     int64_t pts;
+
+    AVPaletteControl palctrl;
 } IdcinDemuxContext;
 
 static int idcin_probe(AVProbeData *p)
@@ -170,6 +172,8 @@
     if (avio_read(pb, st->codec->extradata, HUFFMAN_TABLE_SIZE) !=
         HUFFMAN_TABLE_SIZE)
         return AVERROR(EIO);
+    /* save a reference in order to transport the palette */
+    st->codec->palctrl = &idcin->palctrl;
 
     /* if sample rate is 0, assume no audio */
     if (sample_rate) {
@@ -222,7 +226,6 @@
     int palette_scale;
     unsigned char r, g, b;
     unsigned char palette_buffer[768];
-    uint32_t palette[256];
 
     if (url_feof(s->pb))
         return AVERROR(EIO);
@@ -233,6 +236,7 @@
             return AVERROR(EIO);
         } else if (command == 1) {
             /* trigger a palette change */
+            idcin->palctrl.palette_changed = 1;
             if (avio_read(pb, palette_buffer, 768) != 768)
                 return AVERROR(EIO);
             /* scale the palette as necessary */
@@ -247,7 +251,7 @@
                 r = palette_buffer[i * 3    ] << palette_scale;
                 g = palette_buffer[i * 3 + 1] << palette_scale;
                 b = palette_buffer[i * 3 + 2] << palette_scale;
-                palette[i] = (r << 16) | (g << 8) | (b);
+                idcin->palctrl.palette[i] = (r << 16) | (g << 8) | (b);
             }
         }
 
@@ -258,15 +262,6 @@
         ret= av_get_packet(pb, pkt, chunk_size);
         if (ret < 0)
             return ret;
-        if (command == 1) {
-            uint8_t *pal;
-
-            pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
-                                          AVPALETTE_SIZE);
-            if (ret < 0)
-                return ret;
-            memcpy(pal, palette, AVPALETTE_SIZE);
-        }
         pkt->stream_index = idcin->video_stream_index;
         pkt->pts = idcin->pts;
     } else {
diff --git a/libavformat/img2.c b/libavformat/img2.c
index b6082c6..11ebf12 100644
--- a/libavformat/img2.c
+++ b/libavformat/img2.c
@@ -143,11 +143,11 @@
         if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
             *pfirst_index =
             *plast_index = 1;
-            if (avio_check(buf, AVIO_FLAG_READ) > 0)
+            if(url_exist(buf))
                 return 0;
             return -1;
         }
-        if (avio_check(buf, AVIO_FLAG_READ) > 0)
+        if (url_exist(buf))
             break;
     }
     if (first_index == 5)
@@ -165,7 +165,7 @@
             if (av_get_frame_filename(buf, sizeof(buf), path,
                                       last_index + range1) < 0)
                 goto fail;
-            if (avio_check(buf, AVIO_FLAG_READ) <= 0)
+            if (!url_exist(buf))
                 break;
             range = range1;
             /* just in case... */
@@ -314,7 +314,7 @@
                                   s->path, s->img_number)<0 && s->img_number > 1)
             return AVERROR(EIO);
         for(i=0; i<3; i++){
-            if (avio_open(&f[i], filename, AVIO_FLAG_READ) < 0) {
+            if (avio_open(&f[i], filename, AVIO_RDONLY) < 0) {
                 if(i==1)
                     break;
                 av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",filename);
@@ -401,7 +401,7 @@
             return AVERROR(EINVAL);
         }
         for(i=0; i<3; i++){
-            if (avio_open(&pb[i], filename, AVIO_FLAG_WRITE) < 0) {
+            if (avio_open(&pb[i], filename, AVIO_WRONLY) < 0) {
                 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
                 return AVERROR(EIO);
             }
diff --git a/libavformat/internal.h b/libavformat/internal.h
index fb2b470..1972993 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -83,6 +83,18 @@
 /** Get the current time since NTP epoch in microseconds. */
 uint64_t ff_ntp_time(void);
 
+#if FF_API_URL_SPLIT
+/**
+ * @deprecated use av_url_split() instead
+ */
+void ff_url_split(char *proto, int proto_size,
+                  char *authorization, int authorization_size,
+                  char *hostname, int hostname_size,
+                  int *port_ptr,
+                  char *path, int path_size,
+                  const char *url);
+#endif
+
 /**
  * Assemble a URL string from components. This is the reverse operation
  * of av_url_split.
diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c
index b6da291..471d6a4 100644
--- a/libavformat/ipmovie.c
+++ b/libavformat/ipmovie.c
@@ -86,8 +86,6 @@
     unsigned int video_width;
     unsigned int video_height;
     int64_t video_pts;
-    uint32_t     palette[256];
-    int          has_palette;
 
     unsigned int audio_bits;
     unsigned int audio_channels;
@@ -107,6 +105,8 @@
 
     int64_t next_chunk_offset;
 
+    AVPaletteControl palette_control;
+
 } IPMVEContext;
 
 static int load_ipmovie_packet(IPMVEContext *s, AVIOContext *pb,
@@ -151,17 +151,6 @@
         if (av_new_packet(pkt, s->decode_map_chunk_size + s->video_chunk_size))
             return CHUNK_NOMEM;
 
-        if (s->has_palette) {
-            uint8_t *pal;
-
-            pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
-                                          AVPALETTE_SIZE);
-            if (pal) {
-                memcpy(pal, s->palette, AVPALETTE_SIZE);
-                s->has_palette = 0;
-            }
-        }
-
         pkt->pos= s->decode_map_chunk_offset;
         avio_seek(pb, s->decode_map_chunk_offset, SEEK_SET);
         s->decode_map_chunk_offset = 0;
@@ -455,9 +444,10 @@
                 r = scratch[j++] * 4;
                 g = scratch[j++] * 4;
                 b = scratch[j++] * 4;
-                s->palette[i] = (r << 16) | (g << 8) | (b);
+                s->palette_control.palette[i] = (r << 16) | (g << 8) | (b);
             }
-            s->has_palette = 1;
+            /* indicate a palette change */
+            s->palette_control.palette_changed = 1;
             break;
 
         case OPCODE_SET_PALETTE_COMPRESSED:
@@ -571,6 +561,9 @@
     st->codec->height = ipmovie->video_height;
     st->codec->bits_per_coded_sample = ipmovie->video_bpp;
 
+    /* palette considerations */
+    st->codec->palctrl = &ipmovie->palette_control;
+
     if (ipmovie->audio_type) {
         st = av_new_stream(s, 0);
         if (!st)
diff --git a/libavformat/isom.h b/libavformat/isom.h
index 2b64486..43fa477 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -123,8 +123,6 @@
     int width;            ///< tkhd width
     int height;           ///< tkhd height
     int dts_shift;        ///< dts shift when ctts is negative
-    uint32_t palette[256];
-    int has_palette;
 } MOVStreamContext;
 
 typedef struct MOVContext {
diff --git a/libavformat/librtmp.c b/libavformat/librtmp.c
index acc4503..4ada918 100644
--- a/libavformat/librtmp.c
+++ b/libavformat/librtmp.c
@@ -94,7 +94,7 @@
         goto fail;
     }
 
-    if (flags & AVIO_FLAG_WRITE)
+    if (flags & AVIO_WRONLY)
         RTMP_EnableWrite(r);
 
     if (!RTMP_Connect(r, NULL) || !RTMP_ConnectStream(r, 0)) {
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index f589412..ffc1898 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1399,7 +1399,7 @@
                    && track->codec_priv.data != NULL) {
             int ret;
             ffio_init_context(&b, track->codec_priv.data, track->codec_priv.size,
-                          AVIO_FLAG_READ, NULL, NULL, NULL, NULL);
+                          AVIO_RDONLY, NULL, NULL, NULL, NULL);
             ret = ff_get_wav_header(&b, st->codec, track->codec_priv.size);
             if (ret < 0)
                 return ret;
diff --git a/libavformat/md5proto.c b/libavformat/md5proto.c
index 3f099da..35a0d31 100644
--- a/libavformat/md5proto.c
+++ b/libavformat/md5proto.c
@@ -36,7 +36,7 @@
         return -1;
     }
 
-    if (!flags & AVIO_FLAG_WRITE)
+    if (flags != AVIO_WRONLY)
         return AVERROR(EINVAL);
 
     av_md5_init(h->priv_data);
@@ -65,7 +65,7 @@
     av_strstart(filename, "md5:", &filename);
 
     if (*filename) {
-        err = ffurl_open(&out, filename, AVIO_FLAG_WRITE);
+        err = ffurl_open(&out, filename, AVIO_WRONLY);
         if (err)
             return err;
         err = ffurl_write(out, buf, i*2+1);
diff --git a/libavformat/metadata.c b/libavformat/metadata.c
index e6fbe30..8caeffa 100644
--- a/libavformat/metadata.c
+++ b/libavformat/metadata.c
@@ -34,6 +34,15 @@
 {
     return av_dict_set(pm, key, value, flags);
 }
+#endif
+#if FF_API_OLD_METADATA
+int av_metadata_set(AVMetadata **pm, const char *key, const char *value)
+{
+    return av_metadata_set2(pm, key, value, 0);
+}
+#endif
+
+#if FF_API_OLD_METADATA2
 
 void av_metadata_conv(AVFormatContext *ctx, const AVMetadataConv *d_conv,
                                             const AVMetadataConv *s_conv)
diff --git a/libavformat/metadata.h b/libavformat/metadata.h
index d826c6f..aa96118 100644
--- a/libavformat/metadata.h
+++ b/libavformat/metadata.h
@@ -39,6 +39,11 @@
 typedef struct AVMetadataConv AVMetadataConv;
 #endif
 
+#if FF_API_OLD_METADATA
+void ff_metadata_demux_compat(AVFormatContext *s);
+void ff_metadata_mux_compat(AVFormatContext *s);
+#endif
+
 void ff_metadata_conv(AVDictionary **pm, const AVMetadataConv *d_conv,
                                        const AVMetadataConv *s_conv);
 void ff_metadata_conv_ctx(AVFormatContext *ctx, const AVMetadataConv *d_conv,
diff --git a/libavformat/metadata_compat.c b/libavformat/metadata_compat.c
new file mode 100644
index 0000000..19b8f59
--- /dev/null
+++ b/libavformat/metadata_compat.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2009  Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <strings.h>
+#include "avformat.h"
+#include "metadata.h"
+#include "libavutil/avstring.h"
+
+#if FF_API_OLD_METADATA
+
+#define SIZE_OFFSET(x) sizeof(((AVFormatContext*)0)->x),offsetof(AVFormatContext,x)
+
+static const struct {
+    const char name[16];
+    int   size;
+    int   offset;
+} compat_tab[] = {
+    { "title",           SIZE_OFFSET(title)     },
+    { "author",          SIZE_OFFSET(author)    },
+    { "copyright",       SIZE_OFFSET(copyright) },
+    { "comment",         SIZE_OFFSET(comment)   },
+    { "album",           SIZE_OFFSET(album)     },
+    { "year",            SIZE_OFFSET(year)      },
+    { "track",           SIZE_OFFSET(track)     },
+    { "genre",           SIZE_OFFSET(genre)     },
+
+    { "artist",          SIZE_OFFSET(author)    },
+    { "creator",         SIZE_OFFSET(author)    },
+    { "written_by",      SIZE_OFFSET(author)    },
+    { "lead_performer",  SIZE_OFFSET(author)    },
+    { "composer",        SIZE_OFFSET(author)    },
+    { "performer",       SIZE_OFFSET(author)    },
+    { "description",     SIZE_OFFSET(comment)   },
+    { "albumtitle",      SIZE_OFFSET(album)     },
+    { "date",            SIZE_OFFSET(year)      },
+    { "date_written",    SIZE_OFFSET(year)      },
+    { "date_released",   SIZE_OFFSET(year)      },
+    { "tracknumber",     SIZE_OFFSET(track)     },
+    { "part_number",     SIZE_OFFSET(track)     },
+};
+
+void ff_metadata_demux_compat(AVFormatContext *ctx)
+{
+    AVMetadata *m;
+    int i, j;
+
+    if ((m = ctx->metadata))
+        for (j=0; j<m->count; j++)
+            for (i=0; i<FF_ARRAY_ELEMS(compat_tab); i++)
+                if (!strcasecmp(m->elems[j].key, compat_tab[i].name)) {
+                    int *ptr = (int *)((char *)ctx+compat_tab[i].offset);
+                    if (*ptr)  continue;
+                    if (compat_tab[i].size > sizeof(int))
+                        av_strlcpy((char *)ptr, m->elems[j].value, compat_tab[i].size);
+                    else
+                        *ptr = atoi(m->elems[j].value);
+                }
+
+    for (i=0; i<ctx->nb_chapters; i++)
+        if ((m = ctx->chapters[i]->metadata))
+            for (j=0; j<m->count; j++)
+                if (!strcasecmp(m->elems[j].key, "title")) {
+                    av_free(ctx->chapters[i]->title);
+                    ctx->chapters[i]->title = av_strdup(m->elems[j].value);
+                }
+
+    for (i=0; i<ctx->nb_programs; i++)
+        if ((m = ctx->programs[i]->metadata))
+            for (j=0; j<m->count; j++) {
+                if (!strcasecmp(m->elems[j].key, "name")) {
+                    av_free(ctx->programs[i]->name);
+                    ctx->programs[i]->name = av_strdup(m->elems[j].value);
+                }
+                if (!strcasecmp(m->elems[j].key, "provider_name")) {
+                    av_free(ctx->programs[i]->provider_name);
+                    ctx->programs[i]->provider_name = av_strdup(m->elems[j].value);
+                }
+            }
+
+    for (i=0; i<ctx->nb_streams; i++)
+        if ((m = ctx->streams[i]->metadata))
+            for (j=0; j<m->count; j++) {
+                if (!strcasecmp(m->elems[j].key, "language"))
+                    av_strlcpy(ctx->streams[i]->language, m->elems[j].value, 4);
+                if (!strcasecmp(m->elems[j].key, "filename")) {
+                    av_free(ctx->streams[i]->filename);
+                    ctx->streams[i]->filename= av_strdup(m->elems[j].value);
+                }
+            }
+}
+
+
+#define FILL_METADATA(s, key, value) {                                        \
+    if (!av_metadata_get(s->metadata, #key, NULL, 0))                         \
+        av_metadata_set2(&s->metadata, #key, value, 0);                       \
+    }
+#define FILL_METADATA_STR(s, key) {                                           \
+    if (s->key && *s->key)  FILL_METADATA(s, key, s->key); }
+#define FILL_METADATA_INT(s, key) {                                           \
+    char number[10];                                                          \
+    snprintf(number, sizeof(number), "%d", s->key);                           \
+    if(s->key)  FILL_METADATA(s, key, number) }
+
+void ff_metadata_mux_compat(AVFormatContext *ctx)
+{
+    int i;
+
+    if (ctx->metadata && ctx->metadata->count > 0)
+        return;
+
+    FILL_METADATA_STR(ctx, title);
+    FILL_METADATA_STR(ctx, author);
+    FILL_METADATA_STR(ctx, copyright);
+    FILL_METADATA_STR(ctx, comment);
+    FILL_METADATA_STR(ctx, album);
+    FILL_METADATA_INT(ctx, year);
+    FILL_METADATA_INT(ctx, track);
+    FILL_METADATA_STR(ctx, genre);
+    for (i=0; i<ctx->nb_chapters; i++)
+        FILL_METADATA_STR(ctx->chapters[i], title);
+    for (i=0; i<ctx->nb_programs; i++) {
+        FILL_METADATA_STR(ctx->programs[i], name);
+        FILL_METADATA_STR(ctx->programs[i], provider_name);
+    }
+    for (i=0; i<ctx->nb_streams; i++) {
+        FILL_METADATA_STR(ctx->streams[i], language);
+        FILL_METADATA_STR(ctx->streams[i], filename);
+    }
+}
+
+#endif /* FF_API_OLD_METADATA */
diff --git a/libavformat/mms.c b/libavformat/mms.c
index 46fbede..b541208 100644
--- a/libavformat/mms.c
+++ b/libavformat/mms.c
@@ -24,7 +24,11 @@
 #include "asf.h"
 #include "libavutil/intreadwrite.h"
 
+#if FF_API_MAX_STREAMS
+#define MMS_MAX_STREAMS MAX_STREAMS
+#else
 #define MMS_MAX_STREAMS 256    /**< arbitrary sanity check value */
+#endif
 
 int ff_mms_read_header(MMSContext *mms, uint8_t *buf, const int size)
 {
diff --git a/libavformat/mmsh.c b/libavformat/mmsh.c
index a66e1d9..4b296e3 100644
--- a/libavformat/mmsh.c
+++ b/libavformat/mmsh.c
@@ -233,7 +233,7 @@
         port = 80; // default mmsh protocol port
     ff_url_join(httpname, sizeof(httpname), "http", NULL, host, port, "%s", path);
 
-    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ) < 0) {
+    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_RDONLY) < 0) {
         return AVERROR(EIO);
     }
 
@@ -261,7 +261,7 @@
     // close the socket and then reopen it for sending the second play request.
     ffurl_close(mms->mms_hd);
     memset(headers, 0, sizeof(headers));
-    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ) < 0) {
+    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_RDONLY) < 0) {
         return AVERROR(EIO);
     }
     stream_selection = av_mallocz(mms->stream_num * 19 + 1);
diff --git a/libavformat/mmst.c b/libavformat/mmst.c
index a3db288..7c1041e 100644
--- a/libavformat/mmst.c
+++ b/libavformat/mmst.c
@@ -523,7 +523,7 @@
 
     // establish tcp connection.
     ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, mmst->host, port, NULL);
-    err = ffurl_open(&mms->mms_hd, tcpname, AVIO_FLAG_READ_WRITE);
+    err = ffurl_open(&mms->mms_hd, tcpname, AVIO_RDWR);
     if (err)
         goto fail;
 
diff --git a/libavformat/mov.c b/libavformat/mov.c
index a1aaf4a..8fd9b32 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1069,6 +1069,7 @@
                 unsigned int color_start, color_count, color_end;
                 unsigned char r, g, b;
 
+                st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
                 if (color_greyscale) {
                     int color_index, color_dec;
                     /* compute the greyscale palette */
@@ -1078,7 +1079,7 @@
                     color_dec = 256 / (color_count - 1);
                     for (j = 0; j < color_count; j++) {
                         r = g = b = color_index;
-                        sc->palette[j] =
+                        st->codec->palctrl->palette[j] =
                             (r << 16) | (g << 8) | (b);
                         color_index -= color_dec;
                         if (color_index < 0)
@@ -1099,7 +1100,7 @@
                         r = color_table[j * 3 + 0];
                         g = color_table[j * 3 + 1];
                         b = color_table[j * 3 + 2];
-                        sc->palette[j] =
+                        st->codec->palctrl->palette[j] =
                             (r << 16) | (g << 8) | (b);
                     }
                 } else {
@@ -1121,12 +1122,12 @@
                             avio_r8(pb);
                             b = avio_r8(pb);
                             avio_r8(pb);
-                            sc->palette[j] =
+                            st->codec->palctrl->palette[j] =
                                 (r << 16) | (g << 8) | (b);
                         }
                     }
                 }
-                sc->has_palette = 1;
+                st->codec->palctrl->palette_changed = 1;
             }
         } else if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
             int bits_per_sample, flags;
@@ -1764,7 +1765,7 @@
 
             av_strlcat(filename, ref->path + l + 1, 1024);
 
-            if (!avio_open(pb, filename, AVIO_FLAG_READ))
+            if (!avio_open(pb, filename, AVIO_RDONLY))
                 return 0;
         }
     }
@@ -2514,17 +2515,6 @@
         ret = av_get_packet(sc->pb, pkt, sample->size);
         if (ret < 0)
             return ret;
-        if (sc->has_palette) {
-            uint8_t *pal;
-
-            pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
-            if (!pal) {
-                av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
-            } else {
-                memcpy(pal, sc->palette, AVPALETTE_SIZE);
-                sc->has_palette = 0;
-            }
-        }
 #if CONFIG_DV_DEMUXER
         if (mov->dv_demux && sc->dv_audio_container) {
             dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 618bd8f..e5c21cc 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -700,6 +700,11 @@
                         code == 0x1be) /* padding_stream */
                         goto skip;
 
+#if FF_API_MAX_STREAMS
+                    if (!pes->st && pes->stream->nb_streams == MAX_STREAMS)
+                        goto skip;
+#endif
+
                     /* stream not present in PMT */
                     if (!pes->st) {
                         pes->st = av_new_stream(ts->stream, pes->pid);
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c
index 7aecf73..8af0c48 100644
--- a/libavformat/nutdec.c
+++ b/libavformat/nutdec.c
@@ -31,7 +31,11 @@
 #undef NDEBUG
 #include <assert.h>
 
+#if FF_API_MAX_STREAMS
+#define NUT_MAX_STREAMS MAX_STREAMS
+#else
 #define NUT_MAX_STREAMS 256    /* arbitrary sanity check value */
+#endif
 
 static int get_str(AVIOContext *bc, char *string, unsigned int maxlen){
     unsigned int len= ffio_read_varlen(bc);
diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c
index 5d1f320..04f536f 100644
--- a/libavformat/oggenc.c
+++ b/libavformat/oggenc.c
@@ -71,7 +71,7 @@
 
 static const AVOption options[] = {
     { "oggpagesize", "Set preferred Ogg page size.",
-      offsetof(OGGContext, pref_size), FF_OPT_TYPE_INT, 0, 0, MAX_PAGE_SIZE, AV_OPT_FLAG_ENCODING_PARAM},
+      offsetof(OGGContext, pref_size), FF_OPT_TYPE_INT, {.dbl=0}, 0, MAX_PAGE_SIZE, AV_OPT_FLAG_ENCODING_PARAM},
     { NULL },
 };
 
diff --git a/libavformat/options.c b/libavformat/options.c
index e09fc97..ef3261b 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -122,3 +122,10 @@
     avformat_get_context_defaults(ic);
     return ic;
 }
+
+#if FF_API_ALLOC_FORMAT_CONTEXT
+AVFormatContext *av_alloc_format_context(void)
+{
+    return avformat_alloc_context();
+}
+#endif
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index b8714c9..3701a77 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -38,6 +38,13 @@
 #include "rtmppkt.h"
 #include "url.h"
 
+/* we can't use av_log() with URLContext yet... */
+#if FF_API_URL_CLASS
+#define LOG_CONTEXT s
+#else
+#define LOG_CONTEXT NULL
+#endif
+
 //#define DEBUG
 
 /** RTMP protocol handler state */
@@ -159,7 +166,7 @@
     ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
                           29 + strlen(rt->playpath));
 
-    av_log(s, AV_LOG_DEBUG, "Releasing stream...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Releasing stream...\n");
     p = pkt.data;
     ff_amf_write_string(&p, "releaseStream");
     ff_amf_write_number(&p, 2.0);
@@ -182,7 +189,7 @@
     ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
                           25 + strlen(rt->playpath));
 
-    av_log(s, AV_LOG_DEBUG, "FCPublish stream...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "FCPublish stream...\n");
     p = pkt.data;
     ff_amf_write_string(&p, "FCPublish");
     ff_amf_write_number(&p, 3.0);
@@ -205,7 +212,7 @@
     ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
                           27 + strlen(rt->playpath));
 
-    av_log(s, AV_LOG_DEBUG, "UnPublishing stream...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "UnPublishing stream...\n");
     p = pkt.data;
     ff_amf_write_string(&p, "FCUnpublish");
     ff_amf_write_number(&p, 5.0);
@@ -225,7 +232,7 @@
     RTMPPacket pkt;
     uint8_t *p;
 
-    av_log(s, AV_LOG_DEBUG, "Creating stream...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Creating stream...\n");
     ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 25);
 
     p = pkt.data;
@@ -247,7 +254,7 @@
     RTMPPacket pkt;
     uint8_t *p;
 
-    av_log(s, AV_LOG_DEBUG, "Deleting stream...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Deleting stream...\n");
     ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 34);
 
     p = pkt.data;
@@ -269,7 +276,7 @@
     RTMPPacket pkt;
     uint8_t *p;
 
-    av_log(s, AV_LOG_DEBUG, "Sending play command for '%s'\n", rt->playpath);
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Sending play command for '%s'\n", rt->playpath);
     ff_rtmp_packet_create(&pkt, RTMP_VIDEO_CHANNEL, RTMP_PT_INVOKE, 0,
                           20 + strlen(rt->playpath));
     pkt.extra = rt->main_channel_id;
@@ -303,7 +310,7 @@
     RTMPPacket pkt;
     uint8_t *p;
 
-    av_log(s, AV_LOG_DEBUG, "Sending publish command for '%s'\n", rt->playpath);
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Sending publish command for '%s'\n", rt->playpath);
     ff_rtmp_packet_create(&pkt, RTMP_SOURCE_CHANNEL, RTMP_PT_INVOKE, 0,
                           30 + strlen(rt->playpath));
     pkt.extra = rt->main_channel_id;
@@ -471,7 +478,7 @@
     int server_pos, client_pos;
     uint8_t digest[32];
 
-    av_log(s, AV_LOG_DEBUG, "Handshaking...\n");
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Handshaking...\n");
 
     av_lfg_init(&rnd, 0xDEADC0DE);
     // generate handshake packet - 1536 bytes of pseudorandom data
@@ -482,16 +489,16 @@
     ffurl_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE + 1);
     i = ffurl_read_complete(rt->stream, serverdata, RTMP_HANDSHAKE_PACKET_SIZE + 1);
     if (i != RTMP_HANDSHAKE_PACKET_SIZE + 1) {
-        av_log(s, AV_LOG_ERROR, "Cannot read RTMP handshake response\n");
+        av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot read RTMP handshake response\n");
         return -1;
     }
     i = ffurl_read_complete(rt->stream, clientdata, RTMP_HANDSHAKE_PACKET_SIZE);
     if (i != RTMP_HANDSHAKE_PACKET_SIZE) {
-        av_log(s, AV_LOG_ERROR, "Cannot read RTMP handshake response\n");
+        av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot read RTMP handshake response\n");
         return -1;
     }
 
-    av_log(s, AV_LOG_DEBUG, "Server version %d.%d.%d.%d\n",
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Server version %d.%d.%d.%d\n",
            serverdata[5], serverdata[6], serverdata[7], serverdata[8]);
 
     if (rt->is_input && serverdata[5] >= 3) {
@@ -499,7 +506,7 @@
         if (!server_pos) {
             server_pos = rtmp_validate_digest(serverdata + 1, 8);
             if (!server_pos) {
-                av_log(s, AV_LOG_ERROR, "Server response validating failed\n");
+                av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server response validating failed\n");
                 return -1;
             }
         }
@@ -511,7 +518,7 @@
                          digest, 32,
                          digest);
         if (memcmp(digest, clientdata + RTMP_HANDSHAKE_PACKET_SIZE - 32, 32)) {
-            av_log(s, AV_LOG_ERROR, "Signature mismatch\n");
+            av_log(LOG_CONTEXT, AV_LOG_ERROR, "Signature mismatch\n");
             return -1;
         }
 
@@ -545,13 +552,13 @@
     const uint8_t *data_end = pkt->data + pkt->data_size;
 
 #ifdef DEBUG
-    ff_rtmp_packet_dump(s, pkt);
+    ff_rtmp_packet_dump(LOG_CONTEXT, pkt);
 #endif
 
     switch (pkt->type) {
     case RTMP_PT_CHUNK_SIZE:
         if (pkt->data_size != 4) {
-            av_log(s, AV_LOG_ERROR,
+            av_log(LOG_CONTEXT, AV_LOG_ERROR,
                    "Chunk size change packet is not 4 bytes long (%d)\n", pkt->data_size);
             return -1;
         }
@@ -559,10 +566,10 @@
             ff_rtmp_packet_write(rt->stream, pkt, rt->chunk_size, rt->prev_pkt[1]);
         rt->chunk_size = AV_RB32(pkt->data);
         if (rt->chunk_size <= 0) {
-            av_log(s, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size);
+            av_log(LOG_CONTEXT, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size);
             return -1;
         }
-        av_log(s, AV_LOG_DEBUG, "New chunk size = %d\n", rt->chunk_size);
+        av_log(LOG_CONTEXT, AV_LOG_DEBUG, "New chunk size = %d\n", rt->chunk_size);
         break;
     case RTMP_PT_PING:
         t = AV_RB16(pkt->data);
@@ -571,12 +578,12 @@
         break;
     case RTMP_PT_CLIENT_BW:
         if (pkt->data_size < 4) {
-            av_log(s, AV_LOG_ERROR,
+            av_log(LOG_CONTEXT, AV_LOG_ERROR,
                    "Client bandwidth report packet is less than 4 bytes long (%d)\n",
                    pkt->data_size);
             return -1;
         }
-        av_log(s, AV_LOG_DEBUG, "Client bandwidth = %d\n", AV_RB32(pkt->data));
+        av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Client bandwidth = %d\n", AV_RB32(pkt->data));
         rt->client_report_size = AV_RB32(pkt->data) >> 1;
         break;
     case RTMP_PT_INVOKE:
@@ -586,7 +593,7 @@
 
             if (!ff_amf_get_field_value(pkt->data + 9, data_end,
                                         "description", tmpstr, sizeof(tmpstr)))
-                av_log(s, AV_LOG_ERROR, "Server error: %s\n",tmpstr);
+                av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server error: %s\n",tmpstr);
             return -1;
         } else if (!memcmp(pkt->data, "\002\000\007_result", 10)) {
             switch (rt->state) {
@@ -617,7 +624,7 @@
             case STATE_CONNECTING:
                 //extract a number from the result
                 if (pkt->data[10] || pkt->data[19] != 5 || pkt->data[20]) {
-                    av_log(s, AV_LOG_WARNING, "Unexpected reply on connect()\n");
+                    av_log(LOG_CONTEXT, AV_LOG_WARNING, "Unexpected reply on connect()\n");
                 } else {
                     rt->main_channel_id = (int) av_int2dbl(AV_RB64(pkt->data + 21));
                 }
@@ -644,7 +651,7 @@
             if (!t && !strcmp(tmpstr, "error")) {
                 if (!ff_amf_get_field_value(ptr, data_end,
                                             "description", tmpstr, sizeof(tmpstr)))
-                    av_log(s, AV_LOG_ERROR, "Server error: %s\n",tmpstr);
+                    av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server error: %s\n",tmpstr);
                 return -1;
             }
             t = ff_amf_get_field_value(ptr, data_end,
@@ -694,7 +701,7 @@
         }
         rt->bytes_read += ret;
         if (rt->bytes_read > rt->last_bytes_read + rt->client_report_size) {
-            av_log(s, AV_LOG_DEBUG, "Sending bytes read report\n");
+            av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Sending bytes read report\n");
             gen_bytes_read(s, rt, rpkt.timestamp + 1);
             rt->last_bytes_read = rt->bytes_read;
         }
@@ -805,7 +812,7 @@
     if (!rt)
         return AVERROR(ENOMEM);
     s->priv_data = rt;
-    rt->is_input = !(flags & AVIO_FLAG_WRITE);
+    rt->is_input = !(flags & AVIO_WRONLY);
 
     av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
                  path, sizeof(path), s->filename);
@@ -814,8 +821,8 @@
         port = RTMP_DEFAULT_PORT;
     ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
 
-    if (ffurl_open(&rt->stream, buf, AVIO_FLAG_READ_WRITE) < 0) {
-        av_log(s , AV_LOG_ERROR, "Cannot open connection %s\n", buf);
+    if (ffurl_open(&rt->stream, buf, AVIO_RDWR) < 0) {
+        av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot open connection %s\n", buf);
         goto fail;
     }
 
@@ -859,7 +866,7 @@
     rt->bytes_read = 0;
     rt->last_bytes_read = 0;
 
-    av_log(s, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n",
+    av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n",
            proto, path, rt->app, rt->playpath);
     gen_connect(s, rt, proto, hostname, port);
 
@@ -926,7 +933,7 @@
     const uint8_t *buf_temp = buf;
 
     if (size < 11) {
-        av_log(s, AV_LOG_DEBUG, "FLV packet too small %d\n", size);
+        av_log(LOG_CONTEXT, AV_LOG_DEBUG, "FLV packet too small %d\n", size);
         return 0;
     }
 
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index d166ae2..07f7217 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1110,14 +1110,14 @@
                                 "?localport=%d", j);
                     /* we will use two ports per rtp stream (rtp and rtcp) */
                     j += 2;
-                    if (ffurl_open(&rtsp_st->rtp_handle, buf, AVIO_FLAG_READ_WRITE) == 0)
+                    if (ffurl_open(&rtsp_st->rtp_handle, buf, AVIO_RDWR) == 0)
                         goto rtp_opened;
                 }
             }
 
 #if 0
             /* then try on any port */
-            if (ffurl_open(&rtsp_st->rtp_handle, "rtp://", AVIO_FLAG_READ) < 0) {
+            if (ffurl_open(&rtsp_st->rtp_handle, "rtp://", AVIO_RDONLY) < 0) {
                 err = AVERROR_INVALIDDATA;
                 goto fail;
             }
@@ -1263,7 +1263,7 @@
                         namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
             ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
                         port, "?ttl=%d", ttl);
-            if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE) < 0) {
+            if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_RDWR) < 0) {
                 err = AVERROR_INVALIDDATA;
                 goto fail;
             }
@@ -1390,7 +1390,7 @@
                  av_get_random_seed(), av_get_random_seed());
 
         /* GET requests */
-        if (ffurl_alloc(&rt->rtsp_hd, httpname, AVIO_FLAG_READ) < 0) {
+        if (ffurl_alloc(&rt->rtsp_hd, httpname, AVIO_RDONLY) < 0) {
             err = AVERROR(EIO);
             goto fail;
         }
@@ -1411,7 +1411,7 @@
         }
 
         /* POST requests */
-        if (ffurl_alloc(&rt->rtsp_hd_out, httpname, AVIO_FLAG_WRITE) < 0 ) {
+        if (ffurl_alloc(&rt->rtsp_hd_out, httpname, AVIO_WRONLY) < 0 ) {
             err = AVERROR(EIO);
             goto fail;
         }
@@ -1454,7 +1454,7 @@
     } else {
         /* open the tcp connection */
         ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, host, port, NULL);
-        if (ffurl_open(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE) < 0) {
+        if (ffurl_open(&rt->rtsp_hd, tcpname, AVIO_RDWR) < 0) {
             err = AVERROR(EIO);
             goto fail;
         }
@@ -1801,7 +1801,7 @@
                     namebuf, rtsp_st->sdp_port,
                     "?localport=%d&ttl=%d", rtsp_st->sdp_port,
                     rtsp_st->sdp_ttl);
-        if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE) < 0) {
+        if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_RDWR) < 0) {
             err = AVERROR_INVALIDDATA;
             goto fail;
         }
@@ -1857,7 +1857,7 @@
     if (!ff_network_init())
         return AVERROR(EIO);
 
-    ret = ffurl_open(&in, s->filename, AVIO_FLAG_READ);
+    ret = ffurl_open(&in, s->filename, AVIO_RDONLY);
     if (ret)
         goto fail;
 
diff --git a/libavformat/sapdec.c b/libavformat/sapdec.c
index f6897fb..e4d3deb 100644
--- a/libavformat/sapdec.c
+++ b/libavformat/sapdec.c
@@ -85,7 +85,7 @@
 
     ff_url_join(url, sizeof(url), "udp", NULL, host, port, "?localport=%d",
                 port);
-    ret = ffurl_open(&sap->ann_fd, url, AVIO_FLAG_READ);
+    ret = ffurl_open(&sap->ann_fd, url, AVIO_RDONLY);
     if (ret)
         goto fail;
 
diff --git a/libavformat/sapenc.c b/libavformat/sapenc.c
index 6cd3096..4ca14ad 100644
--- a/libavformat/sapenc.c
+++ b/libavformat/sapenc.c
@@ -146,7 +146,7 @@
                     "?ttl=%d", ttl);
         if (!same_port)
             base_port += 2;
-        ret = ffurl_open(&fd, url, AVIO_FLAG_WRITE);
+        ret = ffurl_open(&fd, url, AVIO_WRONLY);
         if (ret) {
             ret = AVERROR(EIO);
             goto fail;
@@ -158,7 +158,7 @@
 
     ff_url_join(url, sizeof(url), "udp", NULL, announce_addr, port,
                 "?ttl=%d&connect=1", ttl);
-    ret = ffurl_open(&sap->ann_fd, url, AVIO_FLAG_WRITE);
+    ret = ffurl_open(&sap->ann_fd, url, AVIO_WRONLY);
     if (ret) {
         ret = AVERROR(EIO);
         goto fail;
diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index eb982d5..9b344ab 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -68,7 +68,7 @@
     snprintf(portstr, sizeof(portstr), "%d", port);
     ret = getaddrinfo(hostname, portstr, &hints, &ai);
     if (ret) {
-        av_log(h, AV_LOG_ERROR,
+        av_log(NULL, AV_LOG_ERROR,
                "Failed to resolve hostname %s: %s\n",
                hostname, gai_strerror(ret));
         return AVERROR(EIO);
@@ -128,7 +128,7 @@
         optlen = sizeof(ret);
         getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
         if (ret != 0) {
-            av_log(h, AV_LOG_ERROR,
+            av_log(NULL, AV_LOG_ERROR,
                    "TCP connection to %s:%d failed: %s\n",
                    hostname, port, strerror(ret));
             ret = AVERROR(ret);
diff --git a/libavformat/udp.c b/libavformat/udp.c
index c2ff76a..867339c 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -280,7 +280,7 @@
                 if (connect(s->udp_fd, (struct sockaddr *) &s->dest_addr,
                             s->dest_addr_len)) {
                     s->is_connected = 0;
-                    av_log(h, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
+                    av_log(NULL, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
                     return AVERROR(EIO);
                 }
             }
@@ -306,7 +306,10 @@
  * streams at the same time.
  * @param h media file context
  */
-static int udp_get_file_handle(URLContext *h)
+#if !FF_API_UDP_GET_FILE
+static
+#endif
+int udp_get_file_handle(URLContext *h)
 {
     UDPContext *s = h->priv_data;
     return s->udp_fd;
@@ -389,7 +392,7 @@
     h->is_streamed = 1;
     h->max_packet_size = 1472;
 
-    is_output = !(flags & AVIO_FLAG_READ);
+    is_output = (flags & AVIO_WRONLY);
 
     s = av_mallocz(sizeof(UDPContext));
     if (!s)
@@ -437,14 +440,14 @@
     /* XXX: fix av_url_split */
     if (hostname[0] == '\0' || hostname[0] == '?') {
         /* only accepts null hostname if input */
-        if (!(flags & AVIO_FLAG_READ))
+        if (flags & AVIO_WRONLY)
             goto fail;
     } else {
         if (ff_udp_set_remote_url(h, uri) < 0)
             goto fail;
     }
 
-    if (s->is_multicast && (h->flags & AVIO_FLAG_READ))
+    if (s->is_multicast && !(h->flags & AVIO_WRONLY))
         s->local_port = port;
     udp_fd = udp_socket_create(s, &my_addr, &len);
     if (udp_fd < 0)
@@ -461,7 +464,7 @@
 
     /* the bind is needed to give a port to the socket now */
     /* if multicast, try the multicast address bind first */
-    if (s->is_multicast && (h->flags & AVIO_FLAG_READ)) {
+    if (s->is_multicast && !(h->flags & AVIO_WRONLY)) {
         bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
     }
     /* bind to the local address if not multicast or if the multicast
@@ -474,7 +477,7 @@
     s->local_port = udp_port(&my_addr, len);
 
     if (s->is_multicast) {
-        if (!(h->flags & AVIO_FLAG_READ)) {
+        if (h->flags & AVIO_WRONLY) {
             /* output */
             if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
                 goto fail;
@@ -489,7 +492,7 @@
         /* limit the tx buf size to limit latency */
         tmp = s->buffer_size;
         if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
-            av_log(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
+            av_log(NULL, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
             goto fail;
         }
     } else {
@@ -497,14 +500,14 @@
          * avoid losing data on OSes that set this too low by default. */
         tmp = s->buffer_size;
         if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
-            av_log(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
+            av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
         }
         /* make the socket non-blocking */
         ff_socket_nonblock(udp_fd, 1);
     }
     if (s->is_connected) {
         if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
-            av_log(h, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
+            av_log(NULL, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
             goto fail;
         }
     }
@@ -597,7 +600,7 @@
 {
     UDPContext *s = h->priv_data;
 
-    if (s->is_multicast && (h->flags & AVIO_FLAG_READ))
+    if (s->is_multicast && !(h->flags & AVIO_WRONLY))
         udp_leave_multicast_group(s->udp_fd, (struct sockaddr *)&s->dest_addr);
     closesocket(s->udp_fd);
     av_fifo_free(s->fifo);
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 400d968..96ceae9 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -118,9 +118,15 @@
 }
 
 /** head of registered input format linked list */
-static AVInputFormat *first_iformat = NULL;
+#if !FF_API_FIRST_FORMAT
+static
+#endif
+AVInputFormat *first_iformat = NULL;
 /** head of registered output format linked list */
-static AVOutputFormat *first_oformat = NULL;
+#if !FF_API_FIRST_FORMAT
+static
+#endif
+AVOutputFormat *first_oformat = NULL;
 
 AVInputFormat  *av_iformat_next(AVInputFormat  *f)
 {
@@ -197,6 +203,14 @@
     return !strcasecmp(name, names);
 }
 
+#if FF_API_GUESS_FORMAT
+AVOutputFormat *guess_format(const char *short_name, const char *filename,
+                             const char *mime_type)
+{
+    return av_guess_format(short_name, filename, mime_type);
+}
+#endif
+
 AVOutputFormat *av_guess_format(const char *short_name, const char *filename,
                                 const char *mime_type)
 {
@@ -232,6 +246,27 @@
     return fmt_found;
 }
 
+#if FF_API_GUESS_FORMAT
+AVOutputFormat *guess_stream_format(const char *short_name, const char *filename,
+                             const char *mime_type)
+{
+    AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
+
+    if (fmt) {
+        AVOutputFormat *stream_fmt;
+        char stream_format_name[64];
+
+        snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
+        stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
+
+        if (stream_fmt)
+            fmt = stream_fmt;
+    }
+
+    return fmt;
+}
+#endif
+
 enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
                             const char *filename, const char *mime_type, enum AVMediaType type){
     if(type == AVMEDIA_TYPE_VIDEO){
@@ -263,6 +298,38 @@
     return NULL;
 }
 
+#if FF_API_SYMVER && CONFIG_SHARED && HAVE_SYMVER
+FF_SYMVER(void, av_destruct_packet_nofree, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_destruct_packet_nofree(pkt);
+}
+
+FF_SYMVER(void, av_destruct_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_destruct_packet(pkt);
+}
+
+FF_SYMVER(int, av_new_packet, (AVPacket *pkt, int size), "LIBAVFORMAT_52")
+{
+    return av_new_packet(pkt, size);
+}
+
+FF_SYMVER(int, av_dup_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    return av_dup_packet(pkt);
+}
+
+FF_SYMVER(void, av_free_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_free_packet(pkt);
+}
+
+FF_SYMVER(void, av_init_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_log(NULL, AV_LOG_WARNING, "Diverting av_*_packet function calls to libavcodec. Recompile to improve performance\n");
+    av_init_packet(pkt);
+}
+#endif
 
 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
 {
@@ -472,8 +539,13 @@
 
     if ((err = avformat_open_input(&ic, filename, fmt, &opts)) < 0)
         goto fail;
+
+    *ic_ptr = ic;
     ic->pb = ic->pb ? ic->pb : pb; // don't leak custom pb if it wasn't set above
 
+#if FF_API_OLD_METADATA
+    ff_metadata_demux_compat(ic);
+#endif
 fail:
     *ic_ptr = ic;
     av_dict_free(&opts);
@@ -604,7 +676,8 @@
         if (!s->iformat)
             return av_probe_input_buffer(s->pb, &s->iformat, filename, s, 0, 0);
         else if (s->iformat->flags & AVFMT_NOFILE)
-            return AVERROR(EINVAL);
+            av_log(s, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
+                                      "will be ignored with AVFMT_NOFILE format.\n");
         return 0;
     }
 
@@ -612,7 +685,7 @@
         (!s->iformat && (s->iformat = av_probe_input_format(&pd, 0))))
         return 0;
 
-    if ((ret = avio_open(&s->pb, filename, AVIO_FLAG_READ)) < 0)
+    if ((ret = avio_open(&s->pb, filename, AVIO_RDONLY)) < 0)
        return ret;
     if (s->iformat)
         return 0;
@@ -742,8 +815,6 @@
             continue;
         }
 
-        if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
-            av_packet_merge_side_data(pkt);
         st= s->streams[pkt->stream_index];
 
         switch(st->codec->codec_type){
@@ -1136,8 +1207,6 @@
                 /* raw data support */
                 *pkt = st->cur_pkt;
                 st->cur_pkt.data= NULL;
-                st->cur_pkt.side_data_elems = 0;
-                st->cur_pkt.side_data = NULL;
                 compute_pkt_fields(s, st, NULL, pkt);
                 s->cur_st = NULL;
                 if ((s->iformat->flags & AVFMT_GENERIC_INDEX) &&
@@ -2663,24 +2732,34 @@
         av_freep(&st->codec->extradata);
         av_freep(&st->codec->subtitle_header);
         av_freep(&st->codec);
+#if FF_API_OLD_METADATA
+        av_freep(&st->filename);
+#endif
         av_freep(&st->priv_data);
         av_freep(&st->info);
         av_freep(&st);
     }
     for(i=s->nb_programs-1; i>=0; i--) {
-        av_dict_free(&s->programs[i]->metadata);
+#if FF_API_OLD_METADATA
+        av_freep(&s->programs[i]->provider_name);
+        av_freep(&s->programs[i]->name);
+#endif
+        av_metadata_free(&s->programs[i]->metadata);
         av_freep(&s->programs[i]->stream_index);
         av_freep(&s->programs[i]);
     }
     av_freep(&s->programs);
     av_freep(&s->priv_data);
     while(s->nb_chapters--) {
+#if FF_API_OLD_METADATA
+        av_free(s->chapters[s->nb_chapters]->title);
+#endif
         av_dict_free(&s->chapters[s->nb_chapters]->metadata);
         av_freep(&s->chapters[s->nb_chapters]);
     }
     av_freep(&s->chapters);
-    av_dict_free(&s->metadata);
-    av_freep(&s->streams);
+    av_metadata_free(&s->metadata);
+//    av_freep(&s->key);
     av_free(s);
 }
 
@@ -2697,6 +2776,13 @@
 {
     AVStream *st;
     int i;
+
+#if FF_API_MAX_STREAMS
+    if (s->nb_streams >= MAX_STREAMS){
+        av_log(s, AV_LOG_ERROR, "Too many streams\n");
+        return NULL;
+    }
+#else
     AVStream **streams;
 
     if (s->nb_streams >= INT_MAX/sizeof(*streams))
@@ -2705,6 +2791,7 @@
     if (!streams)
         return NULL;
     s->streams = streams;
+#endif
 
     st = av_mallocz(sizeof(AVStream));
     if (!st)
@@ -2782,6 +2869,9 @@
             return NULL;
         dynarray_add(&s->chapters, &s->nb_chapters, chapter);
     }
+#if FF_API_OLD_METADATA
+    av_free(chapter->title);
+#endif
     av_dict_set(&chapter->metadata, "title", title, 0);
     chapter->id    = id;
     chapter->time_base= time_base;
@@ -3006,6 +3096,10 @@
         }
     }
 
+#if FF_API_OLD_METADATA
+    ff_metadata_mux_compat(s);
+#endif
+
     /* set muxer identification string */
     if (s->nb_streams && !(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
         av_dict_set(&s->metadata, "encoder", LIBAVFORMAT_IDENT, 0);
@@ -3510,6 +3604,24 @@
     av_free(printed);
 }
 
+#if FF_API_PARSE_FRAME_PARAM
+#include "libavutil/parseutils.h"
+
+int parse_image_size(int *width_ptr, int *height_ptr, const char *str)
+{
+    return av_parse_video_size(width_ptr, height_ptr, str);
+}
+
+int parse_frame_rate(int *frame_rate_num, int *frame_rate_den, const char *arg)
+{
+    AVRational frame_rate;
+    int ret = av_parse_video_rate(&frame_rate, arg);
+    *frame_rate_num= frame_rate.num;
+    *frame_rate_den= frame_rate.den;
+    return ret;
+}
+#endif
+
 int64_t av_gettime(void)
 {
     struct timeval tv;
@@ -3689,6 +3801,24 @@
     pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
 }
 
+#if FF_API_URL_SPLIT
+attribute_deprecated
+void ff_url_split(char *proto, int proto_size,
+                  char *authorization, int authorization_size,
+                  char *hostname, int hostname_size,
+                  int *port_ptr,
+                  char *path, int path_size,
+                  const char *url)
+{
+    av_url_split(proto, proto_size,
+                 authorization, authorization_size,
+                 hostname, hostname_size,
+                 port_ptr,
+                 path, path_size,
+                 url);
+}
+#endif
+
 void av_url_split(char *proto, int proto_size,
                   char *authorization, int authorization_size,
                   char *hostname, int hostname_size,
diff --git a/libavformat/version.h b/libavformat/version.h
index 691f9c0..65a3fd2 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -23,8 +23,8 @@
 
 #include "libavutil/avutil.h"
 
-#define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR  4
+#define LIBAVFORMAT_VERSION_MAJOR 52
+#define LIBAVFORMAT_VERSION_MINOR 110
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
@@ -41,15 +41,60 @@
  * Those FF_API_* defines are not part of public API.
  * They may change, break or disappear at any time.
  */
+#ifndef FF_API_MAX_STREAMS
+#define FF_API_MAX_STREAMS             (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_OLD_METADATA
+#define FF_API_OLD_METADATA            (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_OLD_METADATA2
 #define FF_API_OLD_METADATA2           (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_URL_CLASS
+#define FF_API_URL_CLASS               (LIBAVFORMAT_VERSION_MAJOR >= 53)
+#endif
+#ifndef FF_API_URL_RESETBUF
+#define FF_API_URL_RESETBUF            (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_REGISTER_PROTOCOL
+#define FF_API_REGISTER_PROTOCOL       (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_GUESS_FORMAT
+#define FF_API_GUESS_FORMAT            (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_UDP_GET_FILE
+#define FF_API_UDP_GET_FILE            (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_URL_SPLIT
+#define FF_API_URL_SPLIT               (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_ALLOC_FORMAT_CONTEXT
+#define FF_API_ALLOC_FORMAT_CONTEXT    (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_PARSE_FRAME_PARAM
+#define FF_API_PARSE_FRAME_PARAM       (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_READ_SEEK
 #define FF_API_READ_SEEK               (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_LAVF_UNUSED
+#define FF_API_LAVF_UNUSED             (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_PARAMETERS_CODEC_ID
+#define FF_API_PARAMETERS_CODEC_ID     (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_FIRST_FORMAT
+#define FF_API_FIRST_FORMAT            (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
+#ifndef FF_API_SYMVER
+#define FF_API_SYMVER                  (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_OLD_AVIO
 #define FF_API_OLD_AVIO                (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_INDEX_BUILT
+#define FF_API_INDEX_BUILT             (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_DUMP_FORMAT
 #define FF_API_DUMP_FORMAT             (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
diff --git a/libavutil/Makefile b/libavutil/Makefile
index 0d8f01d..f6f5fd3 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -36,6 +36,7 @@
           rational.h                                                    \
           samplefmt.h                                                   \
           sha.h                                                         \
+          sha1.h                                                        \
 
 BUILT_HEADERS = avconfig.h
 
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 8affad6..59b59db 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -39,9 +39,9 @@
 #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
-#define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR  9
-#define LIBAVUTIL_VERSION_MICRO  1
+#define LIBAVUTIL_VERSION_MAJOR 50
+#define LIBAVUTIL_VERSION_MINOR 43
+#define LIBAVUTIL_VERSION_MICRO  0
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \
@@ -59,6 +59,7 @@
  */
 #ifndef FF_API_OLD_EVAL_NAMES
 #define FF_API_OLD_EVAL_NAMES (LIBAVUTIL_VERSION_MAJOR < 52)
+
 #endif
 #ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
 #define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
@@ -103,6 +104,13 @@
 #define AV_TIME_BASE            1000000
 #define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}
 
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_OLD_IMAGE_NAMES
+#define FF_API_OLD_IMAGE_NAMES (LIBAVUTIL_VERSION_MAJOR < 51)
+#endif
 enum AVPictureType {
     AV_PICTURE_TYPE_NONE = 0, ///< Undefined
     AV_PICTURE_TYPE_I,     ///< Intra
diff --git a/libavutil/error.c b/libavutil/error.c
index d296395..42de50d 100644
--- a/libavutil/error.c
+++ b/libavutil/error.c
@@ -26,19 +26,20 @@
     const char *errstr = NULL;
 
     switch (errnum) {
-    case AVERROR_BSF_NOT_FOUND:     errstr = "Bitstream filter not found"                   ; break;
-    case AVERROR_DECODER_NOT_FOUND: errstr = "Decoder not found"                            ; break;
-    case AVERROR_DEMUXER_NOT_FOUND: errstr = "Demuxer not found"                            ; break;
-    case AVERROR_ENCODER_NOT_FOUND: errstr = "Encoder not found"                            ; break;
-    case AVERROR_EOF:               errstr = "End of file"                                  ; break;
-    case AVERROR_EXIT:              errstr = "Immediate exit requested"                     ; break;
-    case AVERROR_FILTER_NOT_FOUND:  errstr = "Filter not found"                             ; break;
-    case AVERROR_INVALIDDATA:       errstr = "Invalid data found when processing input"     ; break;
-    case AVERROR_MUXER_NOT_FOUND:   errstr = "Muxer not found"                              ; break;
-    case AVERROR_OPTION_NOT_FOUND:  errstr = "Option not found"                             ; break;
-    case AVERROR_PATCHWELCOME:      errstr = "Not yet implemented in FFmpeg, patches welcome"; break;
-    case AVERROR_PROTOCOL_NOT_FOUND:errstr = "Protocol not found"                           ; break;
-    case AVERROR_STREAM_NOT_FOUND:  errstr = "Stream not found"                             ; break;
+    case AVERROR_EOF:               errstr = "End of file"; break;
+    case AVERROR_INVALIDDATA:       errstr = "Invalid data found when processing input"; break;
+    case AVERROR_NUMEXPECTED:       errstr = "Number syntax expected in filename"; break;
+    case AVERROR_PATCHWELCOME:      errstr = "Not yet implemented in Libav, patches welcome"; break;
+    case AVERROR_DEMUXER_NOT_FOUND: errstr = "Demuxer not found"; break;
+    case AVERROR_MUXER_NOT_FOUND:   errstr = "Muxer not found"; break;
+    case AVERROR_DECODER_NOT_FOUND: errstr = "Decoder not found"; break;
+    case AVERROR_ENCODER_NOT_FOUND: errstr = "Encoder not found"; break;
+    case AVERROR_OPTION_NOT_FOUND:  errstr = "Option not found"; break;
+    case AVERROR_PROTOCOL_NOT_FOUND:errstr = "Protocol not found"; break;
+    case AVERROR_FILTER_NOT_FOUND:  errstr = "Filter not found"; break;
+    case AVERROR_BSF_NOT_FOUND:     errstr = "Bitstream filter not found"; break;
+    case AVERROR_STREAM_NOT_FOUND:  errstr = "Stream not found"; break;
+    case AVERROR_EXIT:              errstr = "Immediate exit requested"; break;
     }
 
     if (errstr) {
diff --git a/libavutil/error.h b/libavutil/error.h
index 47d366e..8b5dbe0 100644
--- a/libavutil/error.h
+++ b/libavutil/error.h
@@ -37,17 +37,37 @@
 #define AVUNERROR(e) (e)
 #endif
 
+#if LIBAVUTIL_VERSION_MAJOR < 51
+#define AVERROR_INVALIDDATA AVERROR(EINVAL)  ///< Invalid data found when processing input
+#define AVERROR_IO          AVERROR(EIO)     ///< I/O error
+#define AVERROR_NOENT       AVERROR(ENOENT)  ///< No such file or directory
+#define AVERROR_NOFMT       AVERROR(EILSEQ)  ///< Unknown format
+#define AVERROR_NOMEM       AVERROR(ENOMEM)  ///< Not enough memory
+#define AVERROR_NOTSUPP     AVERROR(ENOSYS)  ///< Operation not supported
+#define AVERROR_NUMEXPECTED AVERROR(EDOM)    ///< Number syntax expected in filename
+#define AVERROR_UNKNOWN     AVERROR(EINVAL)  ///< Unknown error
+#endif
+
+#define AVERROR_EOF         AVERROR(EPIPE)   ///< End of file
+
+#define AVERROR_PATCHWELCOME    (-MKTAG('P','A','W','E')) ///< Not yet implemented in Libav, patches welcome
+
+#if LIBAVUTIL_VERSION_MAJOR > 50
+#define AVERROR_INVALIDDATA     (-MKTAG('I','N','D','A')) ///< Invalid data found when processing input
+#define AVERROR_NUMEXPECTED     (-MKTAG('N','U','E','X')) ///< Number syntax expected in filename
+#endif
+
+#define AVERROR_DEMUXER_NOT_FOUND  (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found
+#define AVERROR_MUXER_NOT_FOUND    (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
+
 #define AVERROR_BSF_NOT_FOUND      (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found
 #define AVERROR_DECODER_NOT_FOUND  (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found
 #define AVERROR_DEMUXER_NOT_FOUND  (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found
 #define AVERROR_ENCODER_NOT_FOUND  (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found
-#define AVERROR_EOF                (-MKTAG( 'E','O','F',' ')) ///< End of file
 #define AVERROR_EXIT               (-MKTAG( 'E','X','I','T')) ///< Immediate exit was requested; the called function should not be restarted
 #define AVERROR_FILTER_NOT_FOUND   (-MKTAG(0xF8,'F','I','L')) ///< Filter not found
-#define AVERROR_INVALIDDATA        (-MKTAG( 'I','N','D','A')) ///< Invalid data found when processing input
 #define AVERROR_MUXER_NOT_FOUND    (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
 #define AVERROR_OPTION_NOT_FOUND   (-MKTAG(0xF8,'O','P','T')) ///< Option not found
-#define AVERROR_PATCHWELCOME       (-MKTAG( 'P','A','W','E')) ///< Not yet implemented in FFmpeg, patches welcome
 #define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
 #define AVERROR_STREAM_NOT_FOUND   (-MKTAG(0xF8,'S','T','R')) ///< Stream not found
 
diff --git a/libavutil/file.c b/libavutil/file.c
index ed6fa38..0704080 100644
--- a/libavutil/file.c
+++ b/libavutil/file.c
@@ -47,6 +47,7 @@
     av_unused void *ptr;
     off_t off_size;
     char errbuf[128];
+    size_t max_size = HAVE_MMAP ? SIZE_MAX : FF_INTERNAL_MEM_TYPE_MAX_VALUE;
     *bufptr = NULL;
 
     if (fd < 0) {
@@ -65,7 +66,7 @@
     }
 
     off_size = st.st_size;
-    if (off_size > SIZE_MAX) {
+    if (off_size > max_size) {
         av_log(&file_log_ctx, AV_LOG_ERROR,
                "File size for file '%s' is too big\n", filename);
         close(fd);
diff --git a/libavutil/imgutils.c b/libavutil/imgutils.c
index e04c307..57b3103 100644
--- a/libavutil/imgutils.c
+++ b/libavutil/imgutils.c
@@ -274,3 +274,32 @@
         }
     }
 }
+
+#if FF_API_OLD_IMAGE_NAMES
+void av_fill_image_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+                                const AVPixFmtDescriptor *pixdesc)
+{
+    av_image_fill_max_pixsteps(max_pixsteps, max_pixstep_comps, pixdesc);
+}
+
+int av_get_image_linesize(enum PixelFormat pix_fmt, int width, int plane)
+{
+    return av_image_get_linesize(pix_fmt, width, plane);
+}
+
+int av_fill_image_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width)
+{
+    return av_image_fill_linesizes(linesizes, pix_fmt, width);
+}
+
+int av_fill_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
+                           uint8_t *ptr, const int linesizes[4])
+{
+    return av_image_fill_pointers(data, pix_fmt, height, ptr, linesizes);
+}
+
+int av_check_image_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
+{
+    return av_image_check_size(w, h, log_offset, log_ctx);
+}
+#endif
diff --git a/libavutil/imgutils.h b/libavutil/imgutils.h
index 12fe1c6..3a738c1 100644
--- a/libavutil/imgutils.h
+++ b/libavutil/imgutils.h
@@ -127,4 +127,23 @@
 
 int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt);
 
+#if FF_API_OLD_IMAGE_NAMES
+attribute_deprecated
+void av_fill_image_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+                                const AVPixFmtDescriptor *pixdesc);
+
+attribute_deprecated
+int av_get_image_linesize(enum PixelFormat pix_fmt, int width, int plane);
+
+attribute_deprecated
+int av_fill_image_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width);
+
+attribute_deprecated
+int av_fill_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
+                           uint8_t *ptr, const int linesizes[4]);
+
+attribute_deprecated
+int av_check_image_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
+#endif
+
 #endif /* AVUTIL_IMGUTILS_H */
diff --git a/libavutil/log.c b/libavutil/log.c
index fd5e2cb..4e9cfe9 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -29,7 +29,10 @@
 #include "avutil.h"
 #include "log.h"
 
-static int av_log_level = AV_LOG_INFO;
+#if LIBAVUTIL_VERSION_MAJOR > 50
+static
+#endif
+int av_log_level = AV_LOG_INFO;
 static int flags;
 
 #if defined(_WIN32) && !defined(__MINGW32CE__)
@@ -100,7 +103,7 @@
     line[0]=0;
 #undef fprintf
     if(print_prefix && avc) {
-        if (avc->parent_log_context_offset) {
+        if(avc->version >= (50<<16 | 15<<8 | 3) && avc->parent_log_context_offset){
             AVClass** parent= *(AVClass***)(((uint8_t*)ptr) + avc->parent_log_context_offset);
             if(parent && *parent){
                 snprintf(line, sizeof(line), "[%s @ %p] ", (*parent)->item_name(parent), parent);
diff --git a/libavutil/mem.c b/libavutil/mem.c
index a53676c..9916234 100644
--- a/libavutil/mem.c
+++ b/libavutil/mem.c
@@ -67,7 +67,7 @@
 
 #define MAX_MALLOC_SIZE INT_MAX
 
-void *av_malloc(size_t size)
+void *av_malloc(FF_INTERNAL_MEM_TYPE size)
 {
     void *ptr = NULL;
 #if CONFIG_MEMALIGN_HACK
@@ -123,7 +123,7 @@
     return ptr;
 }
 
-void *av_realloc(void *ptr, size_t size)
+void *av_realloc(void *ptr, FF_INTERNAL_MEM_TYPE size)
 {
 #if CONFIG_MEMALIGN_HACK
     int diff;
@@ -177,7 +177,7 @@
     *ptr = NULL;
 }
 
-void *av_mallocz(size_t size)
+void *av_mallocz(FF_INTERNAL_MEM_TYPE size)
 {
     void *ptr = av_malloc(size);
     if (ptr)
diff --git a/libavutil/mem.h b/libavutil/mem.h
index d3e82b2..95e776a 100644
--- a/libavutil/mem.h
+++ b/libavutil/mem.h
@@ -63,6 +63,14 @@
     #define av_alloc_size(n)
 #endif
 
+#if LIBAVUTIL_VERSION_MAJOR < 51
+#   define FF_INTERNAL_MEM_TYPE unsigned int
+#   define FF_INTERNAL_MEM_TYPE_MAX_VALUE UINT_MAX
+#else
+#   define FF_INTERNAL_MEM_TYPE size_t
+#   define FF_INTERNAL_MEM_TYPE_MAX_VALUE SIZE_MAX
+#endif
+
 /**
  * Allocate a block of size bytes with alignment suitable for all
  * memory accesses (including vectors if available on the CPU).
@@ -71,7 +79,7 @@
  * be allocated.
  * @see av_mallocz()
  */
-void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
+void *av_malloc(FF_INTERNAL_MEM_TYPE size) av_malloc_attrib av_alloc_size(1);
 
 /**
  * Allocate or reallocate a block of memory.
@@ -85,7 +93,7 @@
  * cannot be reallocated or the function is used to free the memory block.
  * @see av_fast_realloc()
  */
-void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
+void *av_realloc(void *ptr, FF_INTERNAL_MEM_TYPE size) av_alloc_size(2);
 
 /**
  * Allocate or reallocate a block of memory.
@@ -115,7 +123,7 @@
  * @return Pointer to the allocated block, NULL if it cannot be allocated.
  * @see av_malloc()
  */
-void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
+void *av_mallocz(FF_INTERNAL_MEM_TYPE size) av_malloc_attrib av_alloc_size(1);
 
 /**
  * Allocate a block of nmemb * size bytes with alignment suitable for all
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c
index 6d19b1a..db1ba39 100644
--- a/libavutil/random_seed.c
+++ b/libavutil/random_seed.c
@@ -80,3 +80,11 @@
         return seed;
     return get_generic_seed();
 }
+
+#if LIBAVUTIL_VERSION_MAJOR < 51
+attribute_deprecated uint32_t ff_random_get_seed(void);
+uint32_t ff_random_get_seed(void)
+{
+    return av_get_random_seed();
+}
+#endif
diff --git a/libavutil/sha.c b/libavutil/sha.c
index ff9e557..2657f7e 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -25,6 +25,7 @@
 #include "avutil.h"
 #include "bswap.h"
 #include "sha.h"
+#include "sha1.h"
 #include "intreadwrite.h"
 
 /** hash context */
@@ -323,6 +324,29 @@
         AV_WB32(digest + i*4, ctx->state[i]);
 }
 
+#if LIBAVUTIL_VERSION_MAJOR < 51
+struct AVSHA1 {
+    AVSHA sha;
+};
+
+const int av_sha1_size = sizeof(struct AVSHA1);
+
+void av_sha1_init(struct AVSHA1* context)
+{
+    av_sha_init(&context->sha, 160);
+}
+
+void av_sha1_update(struct AVSHA1* context, const uint8_t* data, unsigned int len)
+{
+    av_sha_update(&context->sha, data, len);
+}
+
+void av_sha1_final(struct AVSHA1* context, uint8_t digest[20])
+{
+    av_sha_final(&context->sha, digest);
+}
+#endif
+
 #ifdef TEST
 #include <stdio.h>
 #undef printf
diff --git a/libavutil/sha1.h b/libavutil/sha1.h
new file mode 100644
index 0000000..3ff5804
--- /dev/null
+++ b/libavutil/sha1.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SHA1_H
+#define AVUTIL_SHA1_H
+
+#include <stdint.h>
+
+extern const int av_sha1_size;
+
+struct AVSHA1;
+
+/**
+ * Initialize SHA-1 hashing.
+ *
+ * @param context pointer to the function context (of size av_sha_size)
+ * @deprecated use av_sha_init() instead
+ */
+void av_sha1_init(struct AVSHA1* context);
+
+/**
+ * Update hash value.
+ *
+ * @param context hash function context
+ * @param data    input data to update hash with
+ * @param len     input data length
+ * @deprecated use av_sha_update() instead
+ */
+void av_sha1_update(struct AVSHA1* context, const uint8_t* data, unsigned int len);
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param context hash function context
+ * @param digest  buffer where output digest value is stored
+ * @deprecated use av_sha_final() instead
+ */
+void av_sha1_final(struct AVSHA1* context, uint8_t digest[20]);
+
+#endif /* AVUTIL_SHA1_H */
diff --git a/libswscale/options.c b/libswscale/options.c
index 010c68e..24e70b9 100644
--- a/libswscale/options.c
+++ b/libswscale/options.c
@@ -20,7 +20,7 @@
 
 #include "libavutil/avutil.h"
 #include "libavutil/pixfmt.h"
-#include "libavutil/opt.h"
+#include "libavcodec/opt.h"
 #include "swscale.h"
 #include "swscale_internal.h"
 
diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index 0876c91..e533a36 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -29,9 +29,9 @@
 
 #include "libavutil/avutil.h"
 
-#define LIBSWSCALE_VERSION_MAJOR 2
-#define LIBSWSCALE_VERSION_MINOR 0
-#define LIBSWSCALE_VERSION_MICRO 0
+#define LIBSWSCALE_VERSION_MAJOR 0
+#define LIBSWSCALE_VERSION_MINOR 14
+#define LIBSWSCALE_VERSION_MICRO 1
 
 #define LIBSWSCALE_VERSION_INT  AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
                                                LIBSWSCALE_VERSION_MINOR, \
@@ -353,7 +353,7 @@
  * @param num_pixels number of pixels to convert
  * @param palette    array with [256] entries, which must match color arrangement (RGB or BGR) of src
  */
-void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette);
+void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
 
 /**
  * Converts an 8bit paletted frame into a frame with a color depth of 24 bits.
@@ -365,7 +365,7 @@
  * @param num_pixels number of pixels to convert
  * @param palette    array with [256] entries, which must match color arrangement (RGB or BGR) of src
  */
-void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette);
+void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
 
 
 #endif /* SWSCALE_SWSCALE_H */
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index e0c4b25..e17de2b 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -182,14 +182,14 @@
     return srcSliceH;
 }
 
-static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 {
     int i;
     for (i=0; i<num_pixels; i++)
         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);
 }
 
-static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 {
     int i;
 
@@ -197,7 +197,7 @@
         ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];
 }
 
-static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 {
     int i;
 
@@ -215,7 +215,7 @@
 {
     const enum PixelFormat srcFormat= c->srcFormat;
     const enum PixelFormat dstFormat= c->dstFormat;
-    void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
+    void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
                  const uint8_t *palette)=NULL;
     int i;
     uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
@@ -826,7 +826,7 @@
 #endif
 
 /* Convert the palette to the same packed 32-bit format as the palette */
-void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 {
     int i;
 
@@ -835,7 +835,7 @@
 }
 
 /* Palette format: ABCD -> dst format: ABC */
-void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 {
     int i;