| /* |
| * utils for libavcodec |
| * Copyright (c) 2001 Fabrice Bellard |
| * Copyright (c) 2002-2004 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 |
| */ |
| |
| /** |
| * @file |
| * utils. |
| */ |
| |
| #include "config.h" |
| #include "libavutil/atomic.h" |
| #include "libavutil/attributes.h" |
| #include "libavutil/avassert.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/bprint.h" |
| #include "libavutil/channel_layout.h" |
| #include "libavutil/crc.h" |
| #include "libavutil/frame.h" |
| #include "libavutil/hwcontext.h" |
| #include "libavutil/internal.h" |
| #include "libavutil/mathematics.h" |
| #include "libavutil/mem_internal.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/samplefmt.h" |
| #include "libavutil/dict.h" |
| #include "libavutil/thread.h" |
| #include "avcodec.h" |
| #include "libavutil/opt.h" |
| #include "me_cmp.h" |
| #include "mpegvideo.h" |
| #include "thread.h" |
| #include "frame_thread_encoder.h" |
| #include "internal.h" |
| #include "raw.h" |
| #include "bytestream.h" |
| #include "version.h" |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <limits.h> |
| #include <float.h> |
| #if CONFIG_ICONV |
| # include <iconv.h> |
| #endif |
| |
| #include "libavutil/ffversion.h" |
| const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION; |
| |
| #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS |
| static int default_lockmgr_cb(void **arg, enum AVLockOp op) |
| { |
| void * volatile * mutex = arg; |
| int err; |
| |
| switch (op) { |
| case AV_LOCK_CREATE: |
| return 0; |
| case AV_LOCK_OBTAIN: |
| if (!*mutex) { |
| pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t)); |
| if (!tmp) |
| return AVERROR(ENOMEM); |
| if ((err = pthread_mutex_init(tmp, NULL))) { |
| av_free(tmp); |
| return AVERROR(err); |
| } |
| if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) { |
| pthread_mutex_destroy(tmp); |
| av_free(tmp); |
| } |
| } |
| |
| if ((err = pthread_mutex_lock(*mutex))) |
| return AVERROR(err); |
| |
| return 0; |
| case AV_LOCK_RELEASE: |
| if ((err = pthread_mutex_unlock(*mutex))) |
| return AVERROR(err); |
| |
| return 0; |
| case AV_LOCK_DESTROY: |
| if (*mutex) |
| pthread_mutex_destroy(*mutex); |
| av_free(*mutex); |
| avpriv_atomic_ptr_cas(mutex, *mutex, NULL); |
| return 0; |
| } |
| return 1; |
| } |
| static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb; |
| #else |
| static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL; |
| #endif |
| |
| |
| volatile int ff_avcodec_locked; |
| static int volatile entangled_thread_counter = 0; |
| static void *codec_mutex; |
| static void *avformat_mutex; |
| |
| void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) |
| { |
| uint8_t **p = ptr; |
| if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { |
| av_freep(p); |
| *size = 0; |
| return; |
| } |
| if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1)) |
| memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); |
| } |
| |
| void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) |
| { |
| uint8_t **p = ptr; |
| if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { |
| av_freep(p); |
| *size = 0; |
| return; |
| } |
| if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1)) |
| memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| } |
| |
| /* encoder management */ |
| static AVCodec *first_avcodec = NULL; |
| static AVCodec **last_avcodec = &first_avcodec; |
| |
| AVCodec *av_codec_next(const AVCodec *c) |
| { |
| if (c) |
| return c->next; |
| else |
| return first_avcodec; |
| } |
| |
| static av_cold void avcodec_init(void) |
| { |
| static int initialized = 0; |
| |
| if (initialized != 0) |
| return; |
| initialized = 1; |
| |
| if (CONFIG_ME_CMP) |
| ff_me_cmp_init_static(); |
| } |
| |
| int av_codec_is_encoder(const AVCodec *codec) |
| { |
| return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame); |
| } |
| |
| int av_codec_is_decoder(const AVCodec *codec) |
| { |
| return codec && (codec->decode || codec->send_packet); |
| } |
| |
| av_cold void avcodec_register(AVCodec *codec) |
| { |
| AVCodec **p; |
| avcodec_init(); |
| p = last_avcodec; |
| codec->next = NULL; |
| |
| while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec)) |
| p = &(*p)->next; |
| last_avcodec = &codec->next; |
| |
| if (codec->init_static_data) |
| codec->init_static_data(codec); |
| } |
| |
| #if FF_API_EMU_EDGE |
| unsigned avcodec_get_edge_width(void) |
| { |
| return EDGE_WIDTH; |
| } |
| #endif |
| |
| #if FF_API_SET_DIMENSIONS |
| void avcodec_set_dimensions(AVCodecContext *s, int width, int height) |
| { |
| int ret = ff_set_dimensions(s, width, height); |
| if (ret < 0) { |
| av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height); |
| } |
| } |
| #endif |
| |
| int ff_set_dimensions(AVCodecContext *s, int width, int height) |
| { |
| int ret = av_image_check_size(width, height, 0, s); |
| |
| if (ret < 0) |
| width = height = 0; |
| |
| s->coded_width = width; |
| s->coded_height = height; |
| s->width = AV_CEIL_RSHIFT(width, s->lowres); |
| s->height = AV_CEIL_RSHIFT(height, s->lowres); |
| |
| return ret; |
| } |
| |
| int ff_set_sar(AVCodecContext *avctx, AVRational sar) |
| { |
| int ret = av_image_check_sar(avctx->width, avctx->height, sar); |
| |
| if (ret < 0) { |
| av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n", |
| sar.num, sar.den); |
| avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| return ret; |
| } else { |
| avctx->sample_aspect_ratio = sar; |
| } |
| return 0; |
| } |
| |
| int ff_side_data_update_matrix_encoding(AVFrame *frame, |
| enum AVMatrixEncoding matrix_encoding) |
| { |
| AVFrameSideData *side_data; |
| enum AVMatrixEncoding *data; |
| |
| side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING); |
| if (!side_data) |
| side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING, |
| sizeof(enum AVMatrixEncoding)); |
| |
| if (!side_data) |
| return AVERROR(ENOMEM); |
| |
| data = (enum AVMatrixEncoding*)side_data->data; |
| *data = matrix_encoding; |
| |
| return 0; |
| } |
| |
| void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, |
| int linesize_align[AV_NUM_DATA_POINTERS]) |
| { |
| int i; |
| int w_align = 1; |
| int h_align = 1; |
| AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt); |
| |
| if (desc) { |
| w_align = 1 << desc->log2_chroma_w; |
| h_align = 1 << desc->log2_chroma_h; |
| } |
| |
| switch (s->pix_fmt) { |
| case AV_PIX_FMT_YUV420P: |
| case AV_PIX_FMT_YUYV422: |
| case AV_PIX_FMT_YVYU422: |
| case AV_PIX_FMT_UYVY422: |
| case AV_PIX_FMT_YUV422P: |
| case AV_PIX_FMT_YUV440P: |
| case AV_PIX_FMT_YUV444P: |
| case AV_PIX_FMT_GBRP: |
| case AV_PIX_FMT_GBRAP: |
| case AV_PIX_FMT_GRAY8: |
| case AV_PIX_FMT_GRAY16BE: |
| case AV_PIX_FMT_GRAY16LE: |
| case AV_PIX_FMT_YUVJ420P: |
| case AV_PIX_FMT_YUVJ422P: |
| case AV_PIX_FMT_YUVJ440P: |
| case AV_PIX_FMT_YUVJ444P: |
| case AV_PIX_FMT_YUVA420P: |
| case AV_PIX_FMT_YUVA422P: |
| case AV_PIX_FMT_YUVA444P: |
| case AV_PIX_FMT_YUV420P9LE: |
| case AV_PIX_FMT_YUV420P9BE: |
| case AV_PIX_FMT_YUV420P10LE: |
| case AV_PIX_FMT_YUV420P10BE: |
| case AV_PIX_FMT_YUV420P12LE: |
| case AV_PIX_FMT_YUV420P12BE: |
| case AV_PIX_FMT_YUV420P14LE: |
| case AV_PIX_FMT_YUV420P14BE: |
| case AV_PIX_FMT_YUV420P16LE: |
| case AV_PIX_FMT_YUV420P16BE: |
| case AV_PIX_FMT_YUVA420P9LE: |
| case AV_PIX_FMT_YUVA420P9BE: |
| case AV_PIX_FMT_YUVA420P10LE: |
| case AV_PIX_FMT_YUVA420P10BE: |
| case AV_PIX_FMT_YUVA420P16LE: |
| case AV_PIX_FMT_YUVA420P16BE: |
| case AV_PIX_FMT_YUV422P9LE: |
| case AV_PIX_FMT_YUV422P9BE: |
| case AV_PIX_FMT_YUV422P10LE: |
| case AV_PIX_FMT_YUV422P10BE: |
| case AV_PIX_FMT_YUV422P12LE: |
| case AV_PIX_FMT_YUV422P12BE: |
| case AV_PIX_FMT_YUV422P14LE: |
| case AV_PIX_FMT_YUV422P14BE: |
| case AV_PIX_FMT_YUV422P16LE: |
| case AV_PIX_FMT_YUV422P16BE: |
| case AV_PIX_FMT_YUVA422P9LE: |
| case AV_PIX_FMT_YUVA422P9BE: |
| case AV_PIX_FMT_YUVA422P10LE: |
| case AV_PIX_FMT_YUVA422P10BE: |
| case AV_PIX_FMT_YUVA422P16LE: |
| case AV_PIX_FMT_YUVA422P16BE: |
| case AV_PIX_FMT_YUV440P10LE: |
| case AV_PIX_FMT_YUV440P10BE: |
| case AV_PIX_FMT_YUV440P12LE: |
| case AV_PIX_FMT_YUV440P12BE: |
| case AV_PIX_FMT_YUV444P9LE: |
| case AV_PIX_FMT_YUV444P9BE: |
| case AV_PIX_FMT_YUV444P10LE: |
| case AV_PIX_FMT_YUV444P10BE: |
| case AV_PIX_FMT_YUV444P12LE: |
| case AV_PIX_FMT_YUV444P12BE: |
| case AV_PIX_FMT_YUV444P14LE: |
| case AV_PIX_FMT_YUV444P14BE: |
| case AV_PIX_FMT_YUV444P16LE: |
| case AV_PIX_FMT_YUV444P16BE: |
| case AV_PIX_FMT_YUVA444P9LE: |
| case AV_PIX_FMT_YUVA444P9BE: |
| case AV_PIX_FMT_YUVA444P10LE: |
| case AV_PIX_FMT_YUVA444P10BE: |
| case AV_PIX_FMT_YUVA444P16LE: |
| case AV_PIX_FMT_YUVA444P16BE: |
| case AV_PIX_FMT_GBRP9LE: |
| case AV_PIX_FMT_GBRP9BE: |
| case AV_PIX_FMT_GBRP10LE: |
| case AV_PIX_FMT_GBRP10BE: |
| case AV_PIX_FMT_GBRP12LE: |
| case AV_PIX_FMT_GBRP12BE: |
| case AV_PIX_FMT_GBRP14LE: |
| case AV_PIX_FMT_GBRP14BE: |
| case AV_PIX_FMT_GBRP16LE: |
| case AV_PIX_FMT_GBRP16BE: |
| case AV_PIX_FMT_GBRAP12LE: |
| case AV_PIX_FMT_GBRAP12BE: |
| case AV_PIX_FMT_GBRAP16LE: |
| case AV_PIX_FMT_GBRAP16BE: |
| w_align = 16; //FIXME assume 16 pixel per macroblock |
| h_align = 16 * 2; // interlaced needs 2 macroblocks height |
| break; |
| case AV_PIX_FMT_YUV411P: |
| case AV_PIX_FMT_YUVJ411P: |
| case AV_PIX_FMT_UYYVYY411: |
| w_align = 32; |
| h_align = 16 * 2; |
| break; |
| case AV_PIX_FMT_YUV410P: |
| if (s->codec_id == AV_CODEC_ID_SVQ1) { |
| w_align = 64; |
| h_align = 64; |
| } |
| break; |
| case AV_PIX_FMT_RGB555: |
| if (s->codec_id == AV_CODEC_ID_RPZA) { |
| w_align = 4; |
| h_align = 4; |
| } |
| if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) { |
| w_align = 8; |
| h_align = 8; |
| } |
| break; |
| case AV_PIX_FMT_PAL8: |
| case AV_PIX_FMT_BGR8: |
| case AV_PIX_FMT_RGB8: |
| if (s->codec_id == AV_CODEC_ID_SMC || |
| s->codec_id == AV_CODEC_ID_CINEPAK) { |
| w_align = 4; |
| h_align = 4; |
| } |
| if (s->codec_id == AV_CODEC_ID_JV || |
| s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) { |
| w_align = 8; |
| h_align = 8; |
| } |
| break; |
| case AV_PIX_FMT_BGR24: |
| if ((s->codec_id == AV_CODEC_ID_MSZH) || |
| (s->codec_id == AV_CODEC_ID_ZLIB)) { |
| w_align = 4; |
| h_align = 4; |
| } |
| break; |
| case AV_PIX_FMT_RGB24: |
| if (s->codec_id == AV_CODEC_ID_CINEPAK) { |
| w_align = 4; |
| h_align = 4; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (s->codec_id == AV_CODEC_ID_IFF_ILBM) { |
| w_align = FFMAX(w_align, 8); |
| } |
| |
| *width = FFALIGN(*width, w_align); |
| *height = FFALIGN(*height, h_align); |
| if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) { |
| // some of the optimized chroma MC reads one line too much |
| // which is also done in mpeg decoders with lowres > 0 |
| *height += 2; |
| |
| // H.264 uses edge emulation for out of frame motion vectors, for this |
| // it requires a temporary area large enough to hold a 21x21 block, |
| // increasing witdth ensure that the temporary area is large enough, |
| // the next rounded up width is 32 |
| *width = FFMAX(*width, 32); |
| } |
| |
| for (i = 0; i < 4; i++) |
| linesize_align[i] = STRIDE_ALIGN; |
| } |
| |
| void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height) |
| { |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); |
| int chroma_shift = desc->log2_chroma_w; |
| int linesize_align[AV_NUM_DATA_POINTERS]; |
| int align; |
| |
| avcodec_align_dimensions2(s, width, height, linesize_align); |
| align = FFMAX(linesize_align[0], linesize_align[3]); |
| linesize_align[1] <<= chroma_shift; |
| linesize_align[2] <<= chroma_shift; |
| align = FFMAX3(align, linesize_align[1], linesize_align[2]); |
| *width = FFALIGN(*width, align); |
| } |
| |
| int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos) |
| { |
| if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB) |
| return AVERROR(EINVAL); |
| pos--; |
| |
| *xpos = (pos&1) * 128; |
| *ypos = ((pos>>1)^(pos<4)) * 128; |
| |
| return 0; |
| } |
| |
| enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos) |
| { |
| int pos, xout, yout; |
| |
| for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) { |
| if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos) |
| return pos; |
| } |
| return AVCHROMA_LOC_UNSPECIFIED; |
| } |
| |
| int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, |
| enum AVSampleFormat sample_fmt, const uint8_t *buf, |
| int buf_size, int align) |
| { |
| int ch, planar, needed_size, ret = 0; |
| |
| needed_size = av_samples_get_buffer_size(NULL, nb_channels, |
| frame->nb_samples, sample_fmt, |
| align); |
| if (buf_size < needed_size) |
| return AVERROR(EINVAL); |
| |
| planar = av_sample_fmt_is_planar(sample_fmt); |
| if (planar && nb_channels > AV_NUM_DATA_POINTERS) { |
| if (!(frame->extended_data = av_mallocz_array(nb_channels, |
| sizeof(*frame->extended_data)))) |
| return AVERROR(ENOMEM); |
| } else { |
| frame->extended_data = frame->data; |
| } |
| |
| if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], |
| (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples, |
| sample_fmt, align)) < 0) { |
| if (frame->extended_data != frame->data) |
| av_freep(&frame->extended_data); |
| return ret; |
| } |
| if (frame->extended_data != frame->data) { |
| for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++) |
| frame->data[ch] = frame->extended_data[ch]; |
| } |
| |
| return ret; |
| } |
| |
| static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame) |
| { |
| FramePool *pool = avctx->internal->pool; |
| int i, ret; |
| |
| switch (avctx->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: { |
| uint8_t *data[4]; |
| int linesize[4]; |
| int size[4] = { 0 }; |
| int w = frame->width; |
| int h = frame->height; |
| int tmpsize, unaligned; |
| |
| if (pool->format == frame->format && |
| pool->width == frame->width && pool->height == frame->height) |
| return 0; |
| |
| avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align); |
| |
| do { |
| // NOTE: do not align linesizes individually, this breaks e.g. assumptions |
| // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 |
| ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w); |
| if (ret < 0) |
| return ret; |
| // increase alignment of w for next try (rhs gives the lowest bit set in w) |
| w += w & ~(w - 1); |
| |
| unaligned = 0; |
| for (i = 0; i < 4; i++) |
| unaligned |= linesize[i] % pool->stride_align[i]; |
| } while (unaligned); |
| |
| tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h, |
| NULL, linesize); |
| if (tmpsize < 0) |
| return -1; |
| |
| for (i = 0; i < 3 && data[i + 1]; i++) |
| size[i] = data[i + 1] - data[i]; |
| size[i] = tmpsize - (data[i] - data[0]); |
| |
| for (i = 0; i < 4; i++) { |
| av_buffer_pool_uninit(&pool->pools[i]); |
| pool->linesize[i] = linesize[i]; |
| if (size[i]) { |
| pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1, |
| CONFIG_MEMORY_POISONING ? |
| NULL : |
| av_buffer_allocz); |
| if (!pool->pools[i]) { |
| ret = AVERROR(ENOMEM); |
| goto fail; |
| } |
| } |
| } |
| pool->format = frame->format; |
| pool->width = frame->width; |
| pool->height = frame->height; |
| |
| break; |
| } |
| case AVMEDIA_TYPE_AUDIO: { |
| int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout); |
| int planar = av_sample_fmt_is_planar(frame->format); |
| int planes = planar ? ch : 1; |
| |
| if (pool->format == frame->format && pool->planes == planes && |
| pool->channels == ch && frame->nb_samples == pool->samples) |
| return 0; |
| |
| av_buffer_pool_uninit(&pool->pools[0]); |
| ret = av_samples_get_buffer_size(&pool->linesize[0], ch, |
| frame->nb_samples, frame->format, 0); |
| if (ret < 0) |
| goto fail; |
| |
| pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL); |
| if (!pool->pools[0]) { |
| ret = AVERROR(ENOMEM); |
| goto fail; |
| } |
| |
| pool->format = frame->format; |
| pool->planes = planes; |
| pool->channels = ch; |
| pool->samples = frame->nb_samples; |
| break; |
| } |
| default: av_assert0(0); |
| } |
| return 0; |
| fail: |
| for (i = 0; i < 4; i++) |
| av_buffer_pool_uninit(&pool->pools[i]); |
| pool->format = -1; |
| pool->planes = pool->channels = pool->samples = 0; |
| pool->width = pool->height = 0; |
| return ret; |
| } |
| |
| static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
| { |
| FramePool *pool = avctx->internal->pool; |
| int planes = pool->planes; |
| int i; |
| |
| frame->linesize[0] = pool->linesize[0]; |
| |
| if (planes > AV_NUM_DATA_POINTERS) { |
| frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data)); |
| frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS; |
| frame->extended_buf = av_mallocz_array(frame->nb_extended_buf, |
| sizeof(*frame->extended_buf)); |
| if (!frame->extended_data || !frame->extended_buf) { |
| av_freep(&frame->extended_data); |
| av_freep(&frame->extended_buf); |
| return AVERROR(ENOMEM); |
| } |
| } else { |
| frame->extended_data = frame->data; |
| av_assert0(frame->nb_extended_buf == 0); |
| } |
| |
| for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) { |
| frame->buf[i] = av_buffer_pool_get(pool->pools[0]); |
| if (!frame->buf[i]) |
| goto fail; |
| frame->extended_data[i] = frame->data[i] = frame->buf[i]->data; |
| } |
| for (i = 0; i < frame->nb_extended_buf; i++) { |
| frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]); |
| if (!frame->extended_buf[i]) |
| goto fail; |
| frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data; |
| } |
| |
| if (avctx->debug & FF_DEBUG_BUFFERS) |
| av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame); |
| |
| return 0; |
| fail: |
| av_frame_unref(frame); |
| return AVERROR(ENOMEM); |
| } |
| |
| static int video_get_buffer(AVCodecContext *s, AVFrame *pic) |
| { |
| FramePool *pool = s->internal->pool; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format); |
| int i; |
| |
| if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) { |
| av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n"); |
| return -1; |
| } |
| |
| if (!desc) { |
| av_log(s, AV_LOG_ERROR, |
| "Unable to get pixel format descriptor for format %s\n", |
| av_get_pix_fmt_name(pic->format)); |
| return AVERROR(EINVAL); |
| } |
| |
| memset(pic->data, 0, sizeof(pic->data)); |
| pic->extended_data = pic->data; |
| |
| for (i = 0; i < 4 && pool->pools[i]; i++) { |
| pic->linesize[i] = pool->linesize[i]; |
| |
| pic->buf[i] = av_buffer_pool_get(pool->pools[i]); |
| if (!pic->buf[i]) |
| goto fail; |
| |
| pic->data[i] = pic->buf[i]->data; |
| } |
| for (; i < AV_NUM_DATA_POINTERS; i++) { |
| pic->data[i] = NULL; |
| pic->linesize[i] = 0; |
| } |
| if (desc->flags & AV_PIX_FMT_FLAG_PAL || |
| desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) |
| avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format); |
| |
| if (s->debug & FF_DEBUG_BUFFERS) |
| av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic); |
| |
| return 0; |
| fail: |
| av_frame_unref(pic); |
| return AVERROR(ENOMEM); |
| } |
| |
| void ff_color_frame(AVFrame *frame, const int c[4]) |
| { |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); |
| int p, y, x; |
| |
| av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR); |
| |
| for (p = 0; p<desc->nb_components; p++) { |
| uint8_t *dst = frame->data[p]; |
| int is_chroma = p == 1 || p == 2; |
| int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width; |
| int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height; |
| for (y = 0; y < height; y++) { |
| if (desc->comp[0].depth >= 9) { |
| for (x = 0; x<bytes; x++) |
| ((uint16_t*)dst)[x] = c[p]; |
| }else |
| memset(dst, c[p], bytes); |
| dst += frame->linesize[p]; |
| } |
| } |
| } |
| |
| int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags) |
| { |
| int ret; |
| |
| if ((ret = update_frame_pool(avctx, frame)) < 0) |
| return ret; |
| |
| switch (avctx->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: |
| return video_get_buffer(avctx, frame); |
| case AVMEDIA_TYPE_AUDIO: |
| return audio_get_buffer(avctx, frame); |
| default: |
| return -1; |
| } |
| } |
| |
| static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame) |
| { |
| int size; |
| const uint8_t *side_metadata; |
| |
| AVDictionary **frame_md = avpriv_frame_get_metadatap(frame); |
| |
| side_metadata = av_packet_get_side_data(avpkt, |
| AV_PKT_DATA_STRINGS_METADATA, &size); |
| return av_packet_unpack_dictionary(side_metadata, size, frame_md); |
| } |
| |
| int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame) |
| { |
| AVPacket *pkt = avctx->internal->pkt; |
| int i; |
| static const struct { |
| enum AVPacketSideDataType packet; |
| enum AVFrameSideDataType frame; |
| } sd[] = { |
| { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN }, |
| { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX }, |
| { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D }, |
| { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE }, |
| { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA }, |
| }; |
| |
| if (pkt) { |
| frame->pkt_pts = pkt->pts; |
| av_frame_set_pkt_pos (frame, pkt->pos); |
| av_frame_set_pkt_duration(frame, pkt->duration); |
| av_frame_set_pkt_size (frame, pkt->size); |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) { |
| int size; |
| uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size); |
| if (packet_sd) { |
| AVFrameSideData *frame_sd = av_frame_new_side_data(frame, |
| sd[i].frame, |
| size); |
| if (!frame_sd) |
| return AVERROR(ENOMEM); |
| |
| memcpy(frame_sd->data, packet_sd, size); |
| } |
| } |
| add_metadata_from_side_data(pkt, frame); |
| } else { |
| frame->pkt_pts = AV_NOPTS_VALUE; |
| av_frame_set_pkt_pos (frame, -1); |
| av_frame_set_pkt_duration(frame, 0); |
| av_frame_set_pkt_size (frame, -1); |
| } |
| frame->reordered_opaque = avctx->reordered_opaque; |
| |
| if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED) |
| frame->color_primaries = avctx->color_primaries; |
| if (frame->color_trc == AVCOL_TRC_UNSPECIFIED) |
| frame->color_trc = avctx->color_trc; |
| if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED) |
| av_frame_set_colorspace(frame, avctx->colorspace); |
| if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED) |
| av_frame_set_color_range(frame, avctx->color_range); |
| if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED) |
| frame->chroma_location = avctx->chroma_sample_location; |
| |
| switch (avctx->codec->type) { |
| case AVMEDIA_TYPE_VIDEO: |
| frame->format = avctx->pix_fmt; |
| if (!frame->sample_aspect_ratio.num) |
| frame->sample_aspect_ratio = avctx->sample_aspect_ratio; |
| |
| if (frame->width && frame->height && |
| av_image_check_sar(frame->width, frame->height, |
| frame->sample_aspect_ratio) < 0) { |
| av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", |
| frame->sample_aspect_ratio.num, |
| frame->sample_aspect_ratio.den); |
| frame->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| } |
| |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| if (!frame->sample_rate) |
| frame->sample_rate = avctx->sample_rate; |
| if (frame->format < 0) |
| frame->format = avctx->sample_fmt; |
| if (!frame->channel_layout) { |
| if (avctx->channel_layout) { |
| if (av_get_channel_layout_nb_channels(avctx->channel_layout) != |
| avctx->channels) { |
| av_log(avctx, AV_LOG_ERROR, "Inconsistent channel " |
| "configuration.\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| frame->channel_layout = avctx->channel_layout; |
| } else { |
| if (avctx->channels > FF_SANE_NB_CHANNELS) { |
| av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n", |
| avctx->channels); |
| return AVERROR(ENOSYS); |
| } |
| } |
| } |
| av_frame_set_channels(frame, avctx->channels); |
| break; |
| } |
| return 0; |
| } |
| |
| int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame) |
| { |
| return ff_init_buffer_info(avctx, frame); |
| } |
| |
| static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame) |
| { |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| int i; |
| int num_planes = av_pix_fmt_count_planes(frame->format); |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); |
| int flags = desc ? desc->flags : 0; |
| if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL)) |
| num_planes = 2; |
| for (i = 0; i < num_planes; i++) { |
| av_assert0(frame->data[i]); |
| } |
| // For now do not enforce anything for palette of pseudopal formats |
| if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PSEUDOPAL)) |
| num_planes = 2; |
| // For formats without data like hwaccel allow unused pointers to be non-NULL. |
| for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) { |
| if (frame->data[i]) |
| av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n"); |
| frame->data[i] = NULL; |
| } |
| } |
| } |
| |
| static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) |
| { |
| const AVHWAccel *hwaccel = avctx->hwaccel; |
| int override_dimensions = 1; |
| int ret; |
| |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) { |
| av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| if (frame->width <= 0 || frame->height <= 0) { |
| frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres)); |
| frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres)); |
| override_dimensions = 0; |
| } |
| |
| if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) { |
| av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n"); |
| return AVERROR(EINVAL); |
| } |
| } |
| ret = ff_decode_frame_props(avctx, frame); |
| if (ret < 0) |
| return ret; |
| |
| if (hwaccel) { |
| if (hwaccel->alloc_frame) { |
| ret = hwaccel->alloc_frame(avctx, frame); |
| goto end; |
| } |
| } else |
| avctx->sw_pix_fmt = avctx->pix_fmt; |
| |
| ret = avctx->get_buffer2(avctx, frame, flags); |
| if (ret >= 0) |
| validate_avframe_allocation(avctx, frame); |
| |
| end: |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) { |
| frame->width = avctx->width; |
| frame->height = avctx->height; |
| } |
| |
| return ret; |
| } |
| |
| int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) |
| { |
| int ret = get_buffer_internal(avctx, frame, flags); |
| if (ret < 0) { |
| av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| frame->width = frame->height = 0; |
| } |
| return ret; |
| } |
| |
| static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame) |
| { |
| AVFrame *tmp; |
| int ret; |
| |
| av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); |
| |
| if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) { |
| av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", |
| frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); |
| av_frame_unref(frame); |
| } |
| |
| ff_init_buffer_info(avctx, frame); |
| |
| if (!frame->data[0]) |
| return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
| |
| if (av_frame_is_writable(frame)) |
| return ff_decode_frame_props(avctx, frame); |
| |
| tmp = av_frame_alloc(); |
| if (!tmp) |
| return AVERROR(ENOMEM); |
| |
| av_frame_move_ref(tmp, frame); |
| |
| ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
| if (ret < 0) { |
| av_frame_free(&tmp); |
| return ret; |
| } |
| |
| av_frame_copy(frame, tmp); |
| av_frame_free(&tmp); |
| |
| return 0; |
| } |
| |
| int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame) |
| { |
| int ret = reget_buffer_internal(avctx, frame); |
| if (ret < 0) |
| av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); |
| return ret; |
| } |
| |
| int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) |
| { |
| int i; |
| |
| for (i = 0; i < count; i++) { |
| int r = func(c, (char *)arg + i * size); |
| if (ret) |
| ret[i] = r; |
| } |
| emms_c(); |
| return 0; |
| } |
| |
| int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) |
| { |
| int i; |
| |
| for (i = 0; i < count; i++) { |
| int r = func(c, arg, i, 0); |
| if (ret) |
| ret[i] = r; |
| } |
| emms_c(); |
| return 0; |
| } |
| |
| enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, |
| unsigned int fourcc) |
| { |
| while (tags->pix_fmt >= 0) { |
| if (tags->fourcc == fourcc) |
| return tags->pix_fmt; |
| tags++; |
| } |
| return AV_PIX_FMT_NONE; |
| } |
| |
| static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt) |
| { |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); |
| return desc->flags & AV_PIX_FMT_FLAG_HWACCEL; |
| } |
| |
| enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) |
| { |
| while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt)) |
| ++fmt; |
| return fmt[0]; |
| } |
| |
| static AVHWAccel *find_hwaccel(enum AVCodecID codec_id, |
| enum AVPixelFormat pix_fmt) |
| { |
| AVHWAccel *hwaccel = NULL; |
| |
| while ((hwaccel = av_hwaccel_next(hwaccel))) |
| if (hwaccel->id == codec_id |
| && hwaccel->pix_fmt == pix_fmt) |
| return hwaccel; |
| return NULL; |
| } |
| |
| static int setup_hwaccel(AVCodecContext *avctx, |
| const enum AVPixelFormat fmt, |
| const char *name) |
| { |
| AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt); |
| int ret = 0; |
| |
| if (avctx->active_thread_type & FF_THREAD_FRAME) { |
| av_log(avctx, AV_LOG_WARNING, |
| "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n"); |
| } |
| |
| if (!hwa) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Could not find an AVHWAccel for the pixel format: %s", |
| name); |
| return AVERROR(ENOENT); |
| } |
| |
| if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL && |
| avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
| av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n", |
| hwa->name); |
| return AVERROR_PATCHWELCOME; |
| } |
| |
| if (hwa->priv_data_size) { |
| avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size); |
| if (!avctx->internal->hwaccel_priv_data) |
| return AVERROR(ENOMEM); |
| } |
| |
| if (hwa->init) { |
| ret = hwa->init(avctx); |
| if (ret < 0) { |
| av_freep(&avctx->internal->hwaccel_priv_data); |
| return ret; |
| } |
| } |
| |
| avctx->hwaccel = hwa; |
| |
| return 0; |
| } |
| |
| int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
| { |
| const AVPixFmtDescriptor *desc; |
| enum AVPixelFormat *choices; |
| enum AVPixelFormat ret; |
| unsigned n = 0; |
| |
| while (fmt[n] != AV_PIX_FMT_NONE) |
| ++n; |
| |
| av_assert0(n >= 1); |
| avctx->sw_pix_fmt = fmt[n - 1]; |
| av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt)); |
| |
| choices = av_malloc_array(n + 1, sizeof(*choices)); |
| if (!choices) |
| return AV_PIX_FMT_NONE; |
| |
| memcpy(choices, fmt, (n + 1) * sizeof(*choices)); |
| |
| for (;;) { |
| if (avctx->hwaccel && avctx->hwaccel->uninit) |
| avctx->hwaccel->uninit(avctx); |
| av_freep(&avctx->internal->hwaccel_priv_data); |
| avctx->hwaccel = NULL; |
| |
| ret = avctx->get_format(avctx, choices); |
| |
| desc = av_pix_fmt_desc_get(ret); |
| if (!desc) { |
| ret = AV_PIX_FMT_NONE; |
| break; |
| } |
| |
| if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) |
| break; |
| #if FF_API_CAP_VDPAU |
| if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU) |
| break; |
| #endif |
| |
| if (!setup_hwaccel(avctx, ret, desc->name)) |
| break; |
| |
| /* Remove failed hwaccel from choices */ |
| for (n = 0; choices[n] != ret; n++) |
| av_assert0(choices[n] != AV_PIX_FMT_NONE); |
| |
| do |
| choices[n] = choices[n + 1]; |
| while (choices[n++] != AV_PIX_FMT_NONE); |
| } |
| |
| av_freep(&choices); |
| return ret; |
| } |
| |
| MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) |
| MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) |
| MAKE_ACCESSORS(AVCodecContext, codec, int, lowres) |
| MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll) |
| MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix) |
| |
| unsigned av_codec_get_codec_properties(const AVCodecContext *codec) |
| { |
| return codec->properties; |
| } |
| |
| int av_codec_get_max_lowres(const AVCodec *codec) |
| { |
| return codec->max_lowres; |
| } |
| |
| int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){ |
| return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM); |
| } |
| |
| static void get_subtitle_defaults(AVSubtitle *sub) |
| { |
| memset(sub, 0, sizeof(*sub)); |
| sub->pts = AV_NOPTS_VALUE; |
| } |
| |
| static int64_t get_bit_rate(AVCodecContext *ctx) |
| { |
| int64_t bit_rate; |
| int bits_per_sample; |
| |
| switch (ctx->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: |
| case AVMEDIA_TYPE_DATA: |
| case AVMEDIA_TYPE_SUBTITLE: |
| case AVMEDIA_TYPE_ATTACHMENT: |
| bit_rate = ctx->bit_rate; |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| bits_per_sample = av_get_bits_per_sample(ctx->codec_id); |
| bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate; |
| break; |
| default: |
| bit_rate = 0; |
| break; |
| } |
| return bit_rate; |
| } |
| |
| int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| { |
| int ret = 0; |
| |
| ff_unlock_avcodec(codec); |
| |
| ret = avcodec_open2(avctx, codec, options); |
| |
| ff_lock_avcodec(avctx, codec); |
| return ret; |
| } |
| |
| int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| { |
| int ret = 0; |
| AVDictionary *tmp = NULL; |
| const AVPixFmtDescriptor *pixdesc; |
| |
| if (avcodec_is_open(avctx)) |
| return 0; |
| |
| if ((!codec && !avctx->codec)) { |
| av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n"); |
| return AVERROR(EINVAL); |
| } |
| if ((codec && avctx->codec && codec != avctx->codec)) { |
| av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " |
| "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name); |
| return AVERROR(EINVAL); |
| } |
| if (!codec) |
| codec = avctx->codec; |
| |
| if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) |
| return AVERROR(EINVAL); |
| |
| if (options) |
| av_dict_copy(&tmp, *options, 0); |
| |
| ret = ff_lock_avcodec(avctx, codec); |
| if (ret < 0) |
| return ret; |
| |
| avctx->internal = av_mallocz(sizeof(AVCodecInternal)); |
| if (!avctx->internal) { |
| ret = AVERROR(ENOMEM); |
| goto end; |
| } |
| |
| avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool)); |
| if (!avctx->internal->pool) { |
| ret = AVERROR(ENOMEM); |
| goto free_and_end; |
| } |
| |
| avctx->internal->to_free = av_frame_alloc(); |
| if (!avctx->internal->to_free) { |
| ret = AVERROR(ENOMEM); |
| goto free_and_end; |
| } |
| |
| avctx->internal->buffer_frame = av_frame_alloc(); |
| if (!avctx->internal->buffer_frame) { |
| ret = AVERROR(ENOMEM); |
| goto free_and_end; |
| } |
| |
| avctx->internal->buffer_pkt = av_packet_alloc(); |
| if (!avctx->internal->buffer_pkt) { |
| ret = AVERROR(ENOMEM); |
| goto free_and_end; |
| } |
| |
| if (codec->priv_data_size > 0) { |
| if (!avctx->priv_data) { |
| avctx->priv_data = av_mallocz(codec->priv_data_size); |
| if (!avctx->priv_data) { |
| ret = AVERROR(ENOMEM); |
| goto end; |
| } |
| if (codec->priv_class) { |
| *(const AVClass **)avctx->priv_data = codec->priv_class; |
| av_opt_set_defaults(avctx->priv_data); |
| } |
| } |
| if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0) |
| goto free_and_end; |
| } else { |
| avctx->priv_data = NULL; |
| } |
| if ((ret = av_opt_set_dict(avctx, &tmp)) < 0) |
| goto free_and_end; |
| |
| if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) { |
| av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| |
| // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions |
| if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && |
| (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) { |
| if (avctx->coded_width && avctx->coded_height) |
| ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); |
| else if (avctx->width && avctx->height) |
| ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
| if (ret < 0) |
| goto free_and_end; |
| } |
| |
| if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) |
| && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0 |
| || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) { |
| av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n"); |
| ff_set_dimensions(avctx, 0, 0); |
| } |
| |
| if (avctx->width > 0 && avctx->height > 0) { |
| if (av_image_check_sar(avctx->width, avctx->height, |
| avctx->sample_aspect_ratio) < 0) { |
| av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", |
| avctx->sample_aspect_ratio.num, |
| avctx->sample_aspect_ratio.den); |
| avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| } |
| } |
| |
| /* if the decoder init function was already called previously, |
| * free the already allocated subtitle_header before overwriting it */ |
| if (av_codec_is_decoder(codec)) |
| av_freep(&avctx->subtitle_header); |
| |
| if (avctx->channels > FF_SANE_NB_CHANNELS) { |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| |
| avctx->codec = codec; |
| if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && |
| avctx->codec_id == AV_CODEC_ID_NONE) { |
| avctx->codec_type = codec->type; |
| avctx->codec_id = codec->id; |
| } |
| if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type |
| && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) { |
| av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n"); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| avctx->frame_number = 0; |
| avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); |
| |
| if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) && |
| avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
| const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder"; |
| AVCodec *codec2; |
| av_log(avctx, AV_LOG_ERROR, |
| "The %s '%s' is experimental but experimental codecs are not enabled, " |
| "add '-strict %d' if you want to use it.\n", |
| codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL); |
| codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id); |
| if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL)) |
| av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n", |
| codec_string, codec2->name); |
| ret = AVERROR_EXPERIMENTAL; |
| goto free_and_end; |
| } |
| |
| if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && |
| (!avctx->time_base.num || !avctx->time_base.den)) { |
| avctx->time_base.num = 1; |
| avctx->time_base.den = avctx->sample_rate; |
| } |
| |
| if (!HAVE_THREADS) |
| av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n"); |
| |
| if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) { |
| ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem |
| ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL); |
| ff_lock_avcodec(avctx, codec); |
| if (ret < 0) |
| goto free_and_end; |
| } |
| |
| if (HAVE_THREADS |
| && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { |
| ret = ff_thread_init(avctx); |
| if (ret < 0) { |
| goto free_and_end; |
| } |
| } |
| if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS)) |
| avctx->thread_count = 1; |
| |
| if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { |
| av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n", |
| avctx->codec->max_lowres); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| |
| #if FF_API_VISMV |
| if (avctx->debug_mv) |
| av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, " |
| "see the codecview filter instead.\n"); |
| #endif |
| |
| if (av_codec_is_encoder(avctx->codec)) { |
| int i; |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| avctx->coded_frame = av_frame_alloc(); |
| if (!avctx->coded_frame) { |
| ret = AVERROR(ENOMEM); |
| goto free_and_end; |
| } |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) { |
| av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n"); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| |
| if (avctx->codec->sample_fmts) { |
| for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { |
| if (avctx->sample_fmt == avctx->codec->sample_fmts[i]) |
| break; |
| if (avctx->channels == 1 && |
| av_get_planar_sample_fmt(avctx->sample_fmt) == |
| av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) { |
| avctx->sample_fmt = avctx->codec->sample_fmts[i]; |
| break; |
| } |
| } |
| if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { |
| char buf[128]; |
| snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt); |
| av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n", |
| (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf)); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } |
| if (avctx->codec->pix_fmts) { |
| for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++) |
| if (avctx->pix_fmt == avctx->codec->pix_fmts[i]) |
| break; |
| if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE |
| && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG) |
| && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) { |
| char buf[128]; |
| snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt); |
| av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n", |
| (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf)); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P || |
| avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P || |
| avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P || |
| avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P || |
| avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P) |
| avctx->color_range = AVCOL_RANGE_JPEG; |
| } |
| if (avctx->codec->supported_samplerates) { |
| for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++) |
| if (avctx->sample_rate == avctx->codec->supported_samplerates[i]) |
| break; |
| if (avctx->codec->supported_samplerates[i] == 0) { |
| av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", |
| avctx->sample_rate); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } |
| if (avctx->sample_rate < 0) { |
| av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", |
| avctx->sample_rate); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| if (avctx->codec->channel_layouts) { |
| if (!avctx->channel_layout) { |
| av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n"); |
| } else { |
| for (i = 0; avctx->codec->channel_layouts[i] != 0; i++) |
| if (avctx->channel_layout == avctx->codec->channel_layouts[i]) |
| break; |
| if (avctx->codec->channel_layouts[i] == 0) { |
| char buf[512]; |
| av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } |
| } |
| if (avctx->channel_layout && avctx->channels) { |
| int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| if (channels != avctx->channels) { |
| char buf[512]; |
| av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| av_log(avctx, AV_LOG_ERROR, |
| "Channel layout '%s' with %d channels does not match number of specified channels %d\n", |
| buf, channels, avctx->channels); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } else if (avctx->channel_layout) { |
| avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| } |
| if (avctx->channels < 0) { |
| av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n", |
| avctx->channels); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt); |
| if ( avctx->bits_per_raw_sample < 0 |
| || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) { |
| av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n", |
| avctx->bits_per_raw_sample, pixdesc->comp[0].depth); |
| avctx->bits_per_raw_sample = pixdesc->comp[0].depth; |
| } |
| if (avctx->width <= 0 || avctx->height <= 0) { |
| av_log(avctx, AV_LOG_ERROR, "dimensions not set\n"); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } |
| if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) |
| && avctx->bit_rate>0 && avctx->bit_rate<1000) { |
| av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate); |
| } |
| |
| if (!avctx->rc_initial_buffer_occupancy) |
| avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4; |
| |
| if (avctx->ticks_per_frame && avctx->time_base.num && |
| avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) { |
| av_log(avctx, AV_LOG_ERROR, |
| "ticks_per_frame %d too large for the timebase %d/%d.", |
| avctx->ticks_per_frame, |
| avctx->time_base.num, |
| avctx->time_base.den); |
| goto free_and_end; |
| } |
| |
| if (avctx->hw_frames_ctx) { |
| AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; |
| if (frames_ctx->format != avctx->pix_fmt) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n"); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| } |
| } |
| |
| avctx->pts_correction_num_faulty_pts = |
| avctx->pts_correction_num_faulty_dts = 0; |
| avctx->pts_correction_last_pts = |
| avctx->pts_correction_last_dts = INT64_MIN; |
| |
| if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY |
| && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO) |
| av_log(avctx, AV_LOG_WARNING, |
| "gray decoding requested but not enabled at configuration time\n"); |
| |
| if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) |
| || avctx->internal->frame_thread_encoder)) { |
| ret = avctx->codec->init(avctx); |
| if (ret < 0) { |
| goto free_and_end; |
| } |
| } |
| |
| ret=0; |
| |
| #if FF_API_AUDIOENC_DELAY |
| if (av_codec_is_encoder(avctx->codec)) |
| avctx->delay = avctx->initial_padding; |
| #endif |
| |
| if (av_codec_is_decoder(avctx->codec)) { |
| if (!avctx->bit_rate) |
| avctx->bit_rate = get_bit_rate(avctx); |
| /* validate channel layout from the decoder */ |
| if (avctx->channel_layout) { |
| int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| if (!avctx->channels) |
| avctx->channels = channels; |
| else if (channels != avctx->channels) { |
| char buf[512]; |
| av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| av_log(avctx, AV_LOG_WARNING, |
| "Channel layout '%s' with %d channels does not match specified number of channels %d: " |
| "ignoring specified channel layout\n", |
| buf, channels, avctx->channels); |
| avctx->channel_layout = 0; |
| } |
| } |
| if (avctx->channels && avctx->channels < 0 || |
| avctx->channels > FF_SANE_NB_CHANNELS) { |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } |
| if (avctx->sub_charenc) { |
| if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) { |
| av_log(avctx, AV_LOG_ERROR, "Character encoding is only " |
| "supported with subtitles codecs\n"); |
| ret = AVERROR(EINVAL); |
| goto free_and_end; |
| } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) { |
| av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, " |
| "subtitles character encoding will be ignored\n", |
| avctx->codec_descriptor->name); |
| avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING; |
| } else { |
| /* input character encoding is set for a text based subtitle |
| * codec at this point */ |
| if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC) |
| avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER; |
| |
| if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) { |
| #if CONFIG_ICONV |
| iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc); |
| if (cd == (iconv_t)-1) { |
| ret = AVERROR(errno); |
| av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context " |
| "with input character encoding \"%s\"\n", avctx->sub_charenc); |
| goto free_and_end; |
| } |
| iconv_close(cd); |
| #else |
| av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles " |
| "conversion needs a libavcodec built with iconv support " |
| "for this codec\n"); |
| ret = AVERROR(ENOSYS); |
| goto free_and_end; |
| #endif |
| } |
| } |
| } |
| |
| #if FF_API_AVCTX_TIMEBASE |
| if (avctx->framerate.num > 0 && avctx->framerate.den > 0) |
| avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); |
| #endif |
| } |
| if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) { |
| av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class); |
| } |
| |
| end: |
| ff_unlock_avcodec(codec); |
| if (options) { |
| av_dict_free(options); |
| *options = tmp; |
| } |
| |
| return ret; |
| free_and_end: |
| if (avctx->codec && |
| (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)) |
| avctx->codec->close(avctx); |
| |
| if (codec->priv_class && codec->priv_data_size) |
| av_opt_free(avctx->priv_data); |
| av_opt_free(avctx); |
| |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| av_frame_free(&avctx->coded_frame); |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| av_dict_free(&tmp); |
| av_freep(&avctx->priv_data); |
| if (avctx->internal) { |
| av_packet_free(&avctx->internal->buffer_pkt); |
| av_frame_free(&avctx->internal->buffer_frame); |
| av_frame_free(&avctx->internal->to_free); |
| av_freep(&avctx->internal->pool); |
| } |
| av_freep(&avctx->internal); |
| avctx->codec = NULL; |
| goto end; |
| } |
| |
| int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size) |
| { |
| if (avpkt->size < 0) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size); |
| return AVERROR(EINVAL); |
| } |
| if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n", |
| size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE); |
| return AVERROR(EINVAL); |
| } |
| |
| if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned |
| av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); |
| if (!avpkt->data || avpkt->size < size) { |
| av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); |
| avpkt->data = avctx->internal->byte_buffer; |
| avpkt->size = avctx->internal->byte_buffer_size; |
| } |
| } |
| |
| if (avpkt->data) { |
| AVBufferRef *buf = avpkt->buf; |
| |
| if (avpkt->size < size) { |
| av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size); |
| return AVERROR(EINVAL); |
| } |
| |
| av_init_packet(avpkt); |
| avpkt->buf = buf; |
| avpkt->size = size; |
| return 0; |
| } else { |
| int ret = av_new_packet(avpkt, size); |
| if (ret < 0) |
| av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size); |
| return ret; |
| } |
| } |
| |
| int ff_alloc_packet(AVPacket *avpkt, int size) |
| { |
| return ff_alloc_packet2(NULL, avpkt, size, 0); |
| } |
| |
| /** |
| * Pad last frame with silence. |
| */ |
| static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) |
| { |
| AVFrame *frame = NULL; |
| int ret; |
| |
| if (!(frame = av_frame_alloc())) |
| return AVERROR(ENOMEM); |
| |
| frame->format = src->format; |
| frame->channel_layout = src->channel_layout; |
| av_frame_set_channels(frame, av_frame_get_channels(src)); |
| frame->nb_samples = s->frame_size; |
| ret = av_frame_get_buffer(frame, 32); |
| if (ret < 0) |
| goto fail; |
| |
| ret = av_frame_copy_props(frame, src); |
| if (ret < 0) |
| goto fail; |
| |
| if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, |
| src->nb_samples, s->channels, s->sample_fmt)) < 0) |
| goto fail; |
| if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, |
| frame->nb_samples - src->nb_samples, |
| s->channels, s->sample_fmt)) < 0) |
| goto fail; |
| |
| *dst = frame; |
| |
| return 0; |
| |
| fail: |
| av_frame_free(&frame); |
| return ret; |
| } |
| |
| int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, |
| AVPacket *avpkt, |
| const AVFrame *frame, |
| int *got_packet_ptr) |
| { |
| AVFrame *extended_frame = NULL; |
| AVFrame *padded_frame = NULL; |
| int ret; |
| AVPacket user_pkt = *avpkt; |
| int needs_realloc = !user_pkt.data; |
| |
| *got_packet_ptr = 0; |
| |
| if (!avctx->codec->encode2) { |
| av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); |
| return AVERROR(ENOSYS); |
| } |
| |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { |
| av_packet_unref(avpkt); |
| av_init_packet(avpkt); |
| return 0; |
| } |
| |
| /* ensure that extended_data is properly set */ |
| if (frame && !frame->extended_data) { |
| if (av_sample_fmt_is_planar(avctx->sample_fmt) && |
| avctx->channels > AV_NUM_DATA_POINTERS) { |
| av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " |
| "with more than %d channels, but extended_data is not set.\n", |
| AV_NUM_DATA_POINTERS); |
| return AVERROR(EINVAL); |
| } |
| av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); |
| |
| extended_frame = av_frame_alloc(); |
| if (!extended_frame) |
| return AVERROR(ENOMEM); |
| |
| memcpy(extended_frame, frame, sizeof(AVFrame)); |
| extended_frame->extended_data = extended_frame->data; |
| frame = extended_frame; |
| } |
| |
| /* extract audio service type metadata */ |
| if (frame) { |
| AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE); |
| if (sd && sd->size >= sizeof(enum AVAudioServiceType)) |
| avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data; |
| } |
| |
| /* check for valid frame size */ |
| if (frame) { |
| if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) { |
| if (frame->nb_samples > avctx->frame_size) { |
| av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); |
| ret = AVERROR(EINVAL); |
| goto end; |
| } |
| } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) { |
| if (frame->nb_samples < avctx->frame_size && |
| !avctx->internal->last_audio_frame) { |
| ret = pad_last_frame(avctx, &padded_frame, frame); |
| if (ret < 0) |
| goto end; |
| |
| frame = padded_frame; |
| avctx->internal->last_audio_frame = 1; |
| } |
| |
| if (frame->nb_samples != avctx->frame_size) { |
| av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); |
| ret = AVERROR(EINVAL); |
| goto end; |
| } |
| } |
| } |
| |
| av_assert0(avctx->codec->encode2); |
| |
| ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
| if (!ret) { |
| if (*got_packet_ptr) { |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) { |
| if (avpkt->pts == AV_NOPTS_VALUE) |
| avpkt->pts = frame->pts; |
| if (!avpkt->duration) |
| avpkt->duration = ff_samples_to_time_base(avctx, |
| frame->nb_samples); |
| } |
| avpkt->dts = avpkt->pts; |
| } else { |
| avpkt->size = 0; |
| } |
| } |
| if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
| needs_realloc = 0; |
| if (user_pkt.data) { |
| if (user_pkt.size >= avpkt->size) { |
| memcpy(user_pkt.data, avpkt->data, avpkt->size); |
| } else { |
| av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
| avpkt->size = user_pkt.size; |
| ret = -1; |
| } |
| avpkt->buf = user_pkt.buf; |
| avpkt->data = user_pkt.data; |
| } else { |
| if (av_dup_packet(avpkt) < 0) { |
| ret = AVERROR(ENOMEM); |
| } |
| } |
| } |
| |
| if (!ret) { |
| if (needs_realloc && avpkt->data) { |
| ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (ret >= 0) |
| avpkt->data = avpkt->buf->data; |
| } |
| |
| avctx->frame_number++; |
| } |
| |
| if (ret < 0 || !*got_packet_ptr) { |
| av_packet_unref(avpkt); |
| av_init_packet(avpkt); |
| goto end; |
| } |
| |
| /* NOTE: if we add any audio encoders which output non-keyframe packets, |
| * this needs to be moved to the encoders, but for now we can do it |
| * here to simplify things */ |
| avpkt->flags |= AV_PKT_FLAG_KEY; |
| |
| end: |
| av_frame_free(&padded_frame); |
| av_free(extended_frame); |
| |
| #if FF_API_AUDIOENC_DELAY |
| avctx->delay = avctx->initial_padding; |
| #endif |
| |
| return ret; |
| } |
| |
| int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, |
| AVPacket *avpkt, |
| const AVFrame *frame, |
| int *got_packet_ptr) |
| { |
| int ret; |
| AVPacket user_pkt = *avpkt; |
| int needs_realloc = !user_pkt.data; |
| |
| *got_packet_ptr = 0; |
| |
| if (!avctx->codec->encode2) { |
| av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); |
| return AVERROR(ENOSYS); |
| } |
| |
| if(CONFIG_FRAME_THREAD_ENCODER && |
| avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) |
| return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); |
| |
| if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out) |
| avctx->stats_out[0] = '\0'; |
| |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { |
| av_packet_unref(avpkt); |
| av_init_packet(avpkt); |
| avpkt->size = 0; |
| return 0; |
| } |
| |
| if (av_image_check_size(avctx->width, avctx->height, 0, avctx)) |
| return AVERROR(EINVAL); |
| |
| if (frame && frame->format == AV_PIX_FMT_NONE) |
| av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n"); |
| if (frame && (frame->width == 0 || frame->height == 0)) |
| av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n"); |
| |
| av_assert0(avctx->codec->encode2); |
| |
| ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
| av_assert0(ret <= 0); |
| |
| if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
| needs_realloc = 0; |
| if (user_pkt.data) { |
| if (user_pkt.size >= avpkt->size) { |
| memcpy(user_pkt.data, avpkt->data, avpkt->size); |
| } else { |
| av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
| avpkt->size = user_pkt.size; |
| ret = -1; |
| } |
| avpkt->buf = user_pkt.buf; |
| avpkt->data = user_pkt.data; |
| } else { |
| if (av_dup_packet(avpkt) < 0) { |
| ret = AVERROR(ENOMEM); |
| } |
| } |
| } |
| |
| if (!ret) { |
| if (!*got_packet_ptr) |
| avpkt->size = 0; |
| else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) |
| avpkt->pts = avpkt->dts = frame->pts; |
| |
| if (needs_realloc && avpkt->data) { |
| ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (ret >= 0) |
| avpkt->data = avpkt->buf->data; |
| } |
| |
| avctx->frame_number++; |
| } |
| |
| if (ret < 0 || !*got_packet_ptr) |
| av_packet_unref(avpkt); |
| |
| emms_c(); |
| return ret; |
| } |
| |
| int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| const AVSubtitle *sub) |
| { |
| int ret; |
| if (sub->start_display_time) { |
| av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); |
| return -1; |
| } |
| |
| ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); |
| avctx->frame_number++; |
| return ret; |
| } |
| |
| /** |
| * Attempt to guess proper monotonic timestamps for decoded video frames |
| * which might have incorrect times. Input timestamps may wrap around, in |
| * which case the output will as well. |
| * |
| * @param pts the pts field of the decoded AVPacket, as passed through |
| * AVFrame.pkt_pts |
| * @param dts the dts field of the decoded AVPacket |
| * @return one of the input values, may be AV_NOPTS_VALUE |
| */ |
| static int64_t guess_correct_pts(AVCodecContext *ctx, |
| int64_t reordered_pts, int64_t dts) |
| { |
| int64_t pts = AV_NOPTS_VALUE; |
| |
| if (dts != AV_NOPTS_VALUE) { |
| ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts; |
| ctx->pts_correction_last_dts = dts; |
| } else if (reordered_pts != AV_NOPTS_VALUE) |
| ctx->pts_correction_last_dts = reordered_pts; |
| |
| if (reordered_pts != AV_NOPTS_VALUE) { |
| ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts; |
| ctx->pts_correction_last_pts = reordered_pts; |
| } else if(dts != AV_NOPTS_VALUE) |
| ctx->pts_correction_last_pts = dts; |
| |
| if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) |
| && reordered_pts != AV_NOPTS_VALUE) |
| pts = reordered_pts; |
| else |
| pts = dts; |
| |
| return pts; |
| } |
| |
| static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) |
| { |
| int size = 0, ret; |
| const uint8_t *data; |
| uint32_t flags; |
| int64_t val; |
| |
| data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); |
| if (!data) |
| return 0; |
| |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) { |
| av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter " |
| "changes, but PARAM_CHANGE side data was sent to it.\n"); |
| ret = AVERROR(EINVAL); |
| goto fail2; |
| } |
| |
| if (size < 4) |
| goto fail; |
| |
| flags = bytestream_get_le32(&data); |
| size -= 4; |
| |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { |
| if (size < 4) |
| goto fail; |
| val = bytestream_get_le32(&data); |
| if (val <= 0 || val > INT_MAX) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid channel count"); |
| ret = AVERROR_INVALIDDATA; |
| goto fail2; |
| } |
| avctx->channels = val; |
| size -= 4; |
| } |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { |
| if (size < 8) |
| goto fail; |
| avctx->channel_layout = bytestream_get_le64(&data); |
| size -= 8; |
| } |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { |
| if (size < 4) |
| goto fail; |
| val = bytestream_get_le32(&data); |
| if (val <= 0 || val > INT_MAX) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid sample rate"); |
| ret = AVERROR_INVALIDDATA; |
| goto fail2; |
| } |
| avctx->sample_rate = val; |
| size -= 4; |
| } |
| if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { |
| if (size < 8) |
| goto fail; |
| avctx->width = bytestream_get_le32(&data); |
| avctx->height = bytestream_get_le32(&data); |
| size -= 8; |
| ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
| if (ret < 0) |
| goto fail2; |
| } |
| |
| return 0; |
| fail: |
| av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n"); |
| ret = AVERROR_INVALIDDATA; |
| fail2: |
| if (ret < 0) { |
| av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); |
| if (avctx->err_recognition & AV_EF_EXPLODE) |
| return ret; |
| } |
| return 0; |
| } |
| |
| static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame) |
| { |
| int ret; |
| |
| /* move the original frame to our backup */ |
| av_frame_unref(avci->to_free); |
| av_frame_move_ref(avci->to_free, frame); |
| |
| /* now copy everything except the AVBufferRefs back |
| * note that we make a COPY of the side data, so calling av_frame_free() on |
| * the caller's frame will work properly */ |
| ret = av_frame_copy_props(frame, avci->to_free); |
| if (ret < 0) |
| return ret; |
| |
| memcpy(frame->data, avci->to_free->data, sizeof(frame->data)); |
| memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize)); |
| if (avci->to_free->extended_data != avci->to_free->data) { |
| int planes = av_frame_get_channels(avci->to_free); |
| int size = planes * sizeof(*frame->extended_data); |
| |
| if (!size) { |
| av_frame_unref(frame); |
| return AVERROR_BUG; |
| } |
| |
| frame->extended_data = av_malloc(size); |
| if (!frame->extended_data) { |
| av_frame_unref(frame); |
| return AVERROR(ENOMEM); |
| } |
| memcpy(frame->extended_data, avci->to_free->extended_data, |
| size); |
| } else |
| frame->extended_data = frame->data; |
| |
| frame->format = avci->to_free->format; |
| frame->width = avci->to_free->width; |
| frame->height = avci->to_free->height; |
| frame->channel_layout = avci->to_free->channel_layout; |
| frame->nb_samples = avci->to_free->nb_samples; |
| av_frame_set_channels(frame, av_frame_get_channels(avci->to_free)); |
| |
| return 0; |
| } |
| |
| int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, |
| int *got_picture_ptr, |
| const AVPacket *avpkt) |
| { |
| AVCodecInternal *avci = avctx->internal; |
| int ret; |
| // copy to ensure we do not change avpkt |
| AVPacket tmp = *avpkt; |
| |
| if (!avctx->codec) |
| return AVERROR(EINVAL); |
| if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| if (!avctx->codec->decode) { |
| av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n"); |
| return AVERROR(ENOSYS); |
| } |
| |
| *got_picture_ptr = 0; |
| if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) |
| return AVERROR(EINVAL); |
| |
| avctx->internal->pkt = avpkt; |
| ret = apply_param_change(avctx, avpkt); |
| if (ret < 0) |
| return ret; |
| |
| av_frame_unref(picture); |
| |
| if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || |
| (avctx->active_thread_type & FF_THREAD_FRAME)) { |
| int did_split = av_packet_split_side_data(&tmp); |
| ret = apply_param_change(avctx, &tmp); |
| if (ret < 0) |
| goto fail; |
| |
| avctx->internal->pkt = &tmp; |
| if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, |
| &tmp); |
| else { |
| ret = avctx->codec->decode(avctx, picture, got_picture_ptr, |
| &tmp); |
| if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS)) |
| picture->pkt_dts = avpkt->dts; |
| |
| if(!avctx->has_b_frames){ |
| av_frame_set_pkt_pos(picture, avpkt->pos); |
| } |
| //FIXME these should be under if(!avctx->has_b_frames) |
| /* get_buffer is supposed to set frame parameters */ |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) { |
| if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; |
| if (!picture->width) picture->width = avctx->width; |
| if (!picture->height) picture->height = avctx->height; |
| if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; |
| } |
| } |
| |
| fail: |
| emms_c(); //needed to avoid an emms_c() call before every return; |
| |
| avctx->internal->pkt = NULL; |
| if (did_split) { |
| av_packet_free_side_data(&tmp); |
| if(ret == tmp.size) |
| ret = avpkt->size; |
| } |
| |
| if (*got_picture_ptr) { |
| if (!avctx->refcounted_frames) { |
| int err = unrefcount_frame(avci, picture); |
| if (err < 0) |
| return err; |
| } |
| |
| avctx->frame_number++; |
| av_frame_set_best_effort_timestamp(picture, |
| guess_correct_pts(avctx, |
| picture->pkt_pts, |
| picture->pkt_dts)); |
| } else |
| av_frame_unref(picture); |
| } else |
| ret = 0; |
| |
| /* many decoders assign whole AVFrames, thus overwriting extended_data; |
| * make sure it's set correctly */ |
| av_assert0(!picture->extended_data || picture->extended_data == picture->data); |
| |
| #if FF_API_AVCTX_TIMEBASE |
| if (avctx->framerate.num > 0 && avctx->framerate.den > 0) |
| avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); |
| #endif |
| |
| return ret; |
| } |
| |
| int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, |
| AVFrame *frame, |
| int *got_frame_ptr, |
| const AVPacket *avpkt) |
| { |
| AVCodecInternal *avci = avctx->internal; |
| int ret = 0; |
| |
| *got_frame_ptr = 0; |
| |
| if (!avctx->codec) |
| return AVERROR(EINVAL); |
| |
| if (!avctx->codec->decode) { |
| av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n"); |
| return AVERROR(ENOSYS); |
| } |
| |
| if (!avpkt->data && avpkt->size) { |
| av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
| return AVERROR(EINVAL); |
| } |
| if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| av_frame_unref(frame); |
| |
| if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { |
| uint8_t *side; |
| int side_size; |
| uint32_t discard_padding = 0; |
| uint8_t skip_reason = 0; |
| uint8_t discard_reason = 0; |
| // copy to ensure we do not change avpkt |
| AVPacket tmp = *avpkt; |
| int did_split = av_packet_split_side_data(&tmp); |
| ret = apply_param_change(avctx, &tmp); |
| if (ret < 0) |
| goto fail; |
| |
| avctx->internal->pkt = &tmp; |
| if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp); |
| else { |
| ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp); |
| av_assert0(ret <= tmp.size); |
| frame->pkt_dts = avpkt->dts; |
| } |
| if (ret >= 0 && *got_frame_ptr) { |
| avctx->frame_number++; |
| av_frame_set_best_effort_timestamp(frame, |
| guess_correct_pts(avctx, |
| frame->pkt_pts, |
| frame->pkt_dts)); |
| if (frame->format == AV_SAMPLE_FMT_NONE) |
| frame->format = avctx->sample_fmt; |
| if (!frame->channel_layout) |
| frame->channel_layout = avctx->channel_layout; |
| if (!av_frame_get_channels(frame)) |
| av_frame_set_channels(frame, avctx->channels); |
| if (!frame->sample_rate) |
| frame->sample_rate = avctx->sample_rate; |
| } |
| |
| side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size); |
| if(side && side_size>=10) { |
| avctx->internal->skip_samples = AV_RL32(side); |
| discard_padding = AV_RL32(side + 4); |
| av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n", |
| avctx->internal->skip_samples, (int)discard_padding); |
| skip_reason = AV_RL8(side + 8); |
| discard_reason = AV_RL8(side + 9); |
| } |
| if (avctx->internal->skip_samples > 0 && *got_frame_ptr && |
| !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) { |
| if(frame->nb_samples <= avctx->internal->skip_samples){ |
| *got_frame_ptr = 0; |
| avctx->internal->skip_samples -= frame->nb_samples; |
| av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", |
| avctx->internal->skip_samples); |
| } else { |
| av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples, |
| frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format); |
| if(avctx->pkt_timebase.num && avctx->sample_rate) { |
| int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples, |
| (AVRational){1, avctx->sample_rate}, |
| avctx->pkt_timebase); |
| if(frame->pkt_pts!=AV_NOPTS_VALUE) |
| frame->pkt_pts += diff_ts; |
| if(frame->pkt_dts!=AV_NOPTS_VALUE) |
| frame->pkt_dts += diff_ts; |
| if (av_frame_get_pkt_duration(frame) >= diff_ts) |
| av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); |
| } |
| av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", |
| avctx->internal->skip_samples, frame->nb_samples); |
| frame->nb_samples -= avctx->internal->skip_samples; |
| avctx->internal->skip_samples = 0; |
| } |
| } |
| |
| if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr && |
| !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) { |
| if (discard_padding == frame->nb_samples) { |
| *got_frame_ptr = 0; |
| } else { |
| if(avctx->pkt_timebase.num && avctx->sample_rate) { |
| int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding, |
| (AVRational){1, avctx->sample_rate}, |
| avctx->pkt_timebase); |
| av_frame_set_pkt_duration(frame, diff_ts); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n"); |
| } |
| av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n", |
| (int)discard_padding, frame->nb_samples); |
| frame->nb_samples -= discard_padding; |
| } |
| } |
| |
| if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) { |
| AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10); |
| if (fside) { |
| AV_WL32(fside->data, avctx->internal->skip_samples); |
| AV_WL32(fside->data + 4, discard_padding); |
| AV_WL8(fside->data + 8, skip_reason); |
| AV_WL8(fside->data + 9, discard_reason); |
| avctx->internal->skip_samples = 0; |
| } |
| } |
| fail: |
| avctx->internal->pkt = NULL; |
| if (did_split) { |
| av_packet_free_side_data(&tmp); |
| if(ret == tmp.size) |
| ret = avpkt->size; |
| } |
| |
| if (ret >= 0 && *got_frame_ptr) { |
| if (!avctx->refcounted_frames) { |
| int err = unrefcount_frame(avci, frame); |
| if (err < 0) |
| return err; |
| } |
| } else |
| av_frame_unref(frame); |
| } |
| |
| av_assert0(ret <= avpkt->size); |
| |
| return ret; |
| } |
| |
| #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ |
| static int recode_subtitle(AVCodecContext *avctx, |
| AVPacket *outpkt, const AVPacket *inpkt) |
| { |
| #if CONFIG_ICONV |
| iconv_t cd = (iconv_t)-1; |
| int ret = 0; |
| char *inb, *outb; |
| size_t inl, outl; |
| AVPacket tmp; |
| #endif |
| |
| if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0) |
| return 0; |
| |
| #if CONFIG_ICONV |
| cd = iconv_open("UTF-8", avctx->sub_charenc); |
| av_assert0(cd != (iconv_t)-1); |
| |
| inb = inpkt->data; |
| inl = inpkt->size; |
| |
| if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) { |
| av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n"); |
| ret = AVERROR(ENOMEM); |
| goto end; |
| } |
| |
| ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES); |
| if (ret < 0) |
| goto end; |
| outpkt->buf = tmp.buf; |
| outpkt->data = tmp.data; |
| outpkt->size = tmp.size; |
| outb = outpkt->data; |
| outl = outpkt->size; |
| |
| if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 || |
| iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 || |
| outl >= outpkt->size || inl != 0) { |
| ret = FFMIN(AVERROR(errno), -1); |
| av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" " |
| "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc); |
| av_packet_unref(&tmp); |
| goto end; |
| } |
| outpkt->size -= outl; |
| memset(outpkt->data + outpkt->size, 0, outl); |
| |
| end: |
| if (cd != (iconv_t)-1) |
| iconv_close(cd); |
| return ret; |
| #else |
| av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv"); |
| return AVERROR(EINVAL); |
| #endif |
| } |
| |
| static int utf8_check(const uint8_t *str) |
| { |
| const uint8_t *byte; |
| uint32_t codepoint, min; |
| |
| while (*str) { |
| byte = str; |
| GET_UTF8(codepoint, *(byte++), return 0;); |
| min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 : |
| 1 << (5 * (byte - str) - 4); |
| if (codepoint < min || codepoint >= 0x110000 || |
| codepoint == 0xFFFE /* BOM */ || |
| codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */) |
| return 0; |
| str = byte; |
| } |
| return 1; |
| } |
| |
| #if FF_API_ASS_TIMING |
| static void insert_ts(AVBPrint *buf, int ts) |
| { |
| if (ts == -1) { |
| av_bprintf(buf, "9:59:59.99,"); |
| } else { |
| int h, m, s; |
| |
| h = ts/360000; ts -= 360000*h; |
| m = ts/ 6000; ts -= 6000*m; |
| s = ts/ 100; ts -= 100*s; |
| av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts); |
| } |
| } |
| |
| static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb) |
| { |
| int i; |
| AVBPrint buf; |
| |
| av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); |
| |
| for (i = 0; i < sub->num_rects; i++) { |
| char *final_dialog; |
| const char *dialog; |
| AVSubtitleRect *rect = sub->rects[i]; |
| int ts_start, ts_duration = -1; |
| long int layer; |
| |
| if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10)) |
| continue; |
| |
| av_bprint_clear(&buf); |
| |
| /* skip ReadOrder */ |
| dialog = strchr(rect->ass, ','); |
| if (!dialog) |
| continue; |
| dialog++; |
| |
| /* extract Layer or Marked */ |
| layer = strtol(dialog, (char**)&dialog, 10); |
| if (*dialog != ',') |
| continue; |
| dialog++; |
| |
| /* rescale timing to ASS time base (ms) */ |
| ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100)); |
| if (pkt->duration != -1) |
| ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100)); |
| sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration); |
| |
| /* construct ASS (standalone file form with timestamps) string */ |
| av_bprintf(&buf, "Dialogue: %ld,", layer); |
| insert_ts(&buf, ts_start); |
| insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration); |
| av_bprintf(&buf, "%s\r\n", dialog); |
| |
| final_dialog = av_strdup(buf.str); |
| if (!av_bprint_is_complete(&buf) || !final_dialog) { |
| av_freep(&final_dialog); |
| av_bprint_finalize(&buf, NULL); |
| return AVERROR(ENOMEM); |
| } |
| av_freep(&rect->ass); |
| rect->ass = final_dialog; |
| } |
| |
| av_bprint_finalize(&buf, NULL); |
| return 0; |
| } |
| #endif |
| |
| int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, |
| int *got_sub_ptr, |
| AVPacket *avpkt) |
| { |
| int i, ret = 0; |
| |
| if (!avpkt->data && avpkt->size) { |
| av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
| return AVERROR(EINVAL); |
| } |
| if (!avctx->codec) |
| return AVERROR(EINVAL); |
| if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| *got_sub_ptr = 0; |
| get_subtitle_defaults(sub); |
| |
| if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) { |
| AVPacket pkt_recoded; |
| AVPacket tmp = *avpkt; |
| int did_split = av_packet_split_side_data(&tmp); |
| //apply_param_change(avctx, &tmp); |
| |
| if (did_split) { |
| /* FFMIN() prevents overflow in case the packet wasn't allocated with |
| * proper padding. |
| * If the side data is smaller than the buffer padding size, the |
| * remaining bytes should have already been filled with zeros by the |
| * original packet allocation anyway. */ |
| memset(tmp.data + tmp.size, 0, |
| FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE)); |
| } |
| |
| pkt_recoded = tmp; |
| ret = recode_subtitle(avctx, &pkt_recoded, &tmp); |
| if (ret < 0) { |
| *got_sub_ptr = 0; |
| } else { |
| avctx->internal->pkt = &pkt_recoded; |
| |
| if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE) |
| sub->pts = av_rescale_q(avpkt->pts, |
| avctx->pkt_timebase, AV_TIME_BASE_Q); |
| ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded); |
| av_assert1((ret >= 0) >= !!*got_sub_ptr && |
| !!*got_sub_ptr >= !!sub->num_rects); |
| |
| #if FF_API_ASS_TIMING |
| if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS |
| && *got_sub_ptr && sub->num_rects) { |
| const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase |
| : avctx->time_base; |
| int err = convert_sub_to_old_ass_form(sub, avpkt, tb); |
| if (err < 0) |
| ret = err; |
| } |
| #endif |
| |
| if (sub->num_rects && !sub->end_display_time && avpkt->duration && |
| avctx->pkt_timebase.num) { |
| AVRational ms = { 1, 1000 }; |
| sub->end_display_time = av_rescale_q(avpkt->duration, |
| avctx->pkt_timebase, ms); |
| } |
| |
| for (i = 0; i < sub->num_rects; i++) { |
| if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Invalid UTF-8 in decoded subtitles text; " |
| "maybe missing -sub_charenc option\n"); |
| avsubtitle_free(sub); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| if (tmp.data != pkt_recoded.data) { // did we recode? |
| /* prevent from destroying side data from original packet */ |
| pkt_recoded.side_data = NULL; |
| pkt_recoded.side_data_elems = 0; |
| |
| av_packet_unref(&pkt_recoded); |
| } |
| if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) |
| sub->format = 0; |
| else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB) |
| sub->format = 1; |
| avctx->internal->pkt = NULL; |
| } |
| |
| if (did_split) { |
| av_packet_free_side_data(&tmp); |
| if(ret == tmp.size) |
| ret = avpkt->size; |
| } |
| |
| if (*got_sub_ptr) |
| avctx->frame_number++; |
| } |
| |
| return ret; |
| } |
| |
| void avsubtitle_free(AVSubtitle *sub) |
| { |
| int i; |
| |
| for (i = 0; i < sub->num_rects; i++) { |
| av_freep(&sub->rects[i]->data[0]); |
| av_freep(&sub->rects[i]->data[1]); |
| av_freep(&sub->rects[i]->data[2]); |
| av_freep(&sub->rects[i]->data[3]); |
| av_freep(&sub->rects[i]->text); |
| av_freep(&sub->rects[i]->ass); |
| av_freep(&sub->rects[i]); |
| } |
| |
| av_freep(&sub->rects); |
| |
| memset(sub, 0, sizeof(AVSubtitle)); |
| } |
| |
| static int do_decode(AVCodecContext *avctx, AVPacket *pkt) |
| { |
| int got_frame = 0; |
| int ret; |
| |
| av_assert0(!avctx->internal->buffer_frame->buf[0]); |
| |
| if (!pkt) |
| pkt = avctx->internal->buffer_pkt; |
| |
| // This is the lesser evil. The field is for compatibility with legacy users |
| // of the legacy API, and users using the new API should not be forced to |
| // even know about this field. |
| avctx->refcounted_frames = 1; |
| |
| // Some codecs (at least wma lossless) will crash when feeding drain packets |
| // after EOF was signaled. |
| if (avctx->internal->draining_done) |
| return AVERROR_EOF; |
| |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame, |
| &got_frame, pkt); |
| if (ret >= 0) |
| ret = pkt->size; |
| } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
| ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame, |
| &got_frame, pkt); |
| } else { |
| ret = AVERROR(EINVAL); |
| } |
| |
| if (ret == AVERROR(EAGAIN)) |
| ret = pkt->size; |
| |
| if (ret < 0) |
| return ret; |
| |
| if (avctx->internal->draining && !got_frame) |
| avctx->internal->draining_done = 1; |
| |
| if (ret >= pkt->size) { |
| av_packet_unref(avctx->internal->buffer_pkt); |
| } else { |
| int consumed = ret; |
| |
| if (pkt != avctx->internal->buffer_pkt) { |
| av_packet_unref(avctx->internal->buffer_pkt); |
| if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0) |
| return ret; |
| } |
| |
| avctx->internal->buffer_pkt->data += consumed; |
| avctx->internal->buffer_pkt->size -= consumed; |
| avctx->internal->buffer_pkt->pts = AV_NOPTS_VALUE; |
| avctx->internal->buffer_pkt->dts = AV_NOPTS_VALUE; |
| } |
| |
| if (got_frame) |
| av_assert0(avctx->internal->buffer_frame->buf[0]); |
| |
| return 0; |
| } |
| |
| int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt) |
| { |
| int ret; |
| |
| if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) |
| return AVERROR(EINVAL); |
| |
| if (avctx->internal->draining) |
| return AVERROR_EOF; |
| |
| if (!avpkt || !avpkt->size) { |
| avctx->internal->draining = 1; |
| avpkt = NULL; |
| |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) |
| return 0; |
| } |
| |
| if (avctx->codec->send_packet) { |
| if (avpkt) { |
| AVPacket tmp = *avpkt; |
| int did_split = av_packet_split_side_data(&tmp); |
| ret = apply_param_change(avctx, &tmp); |
| if (ret >= 0) |
| ret = avctx->codec->send_packet(avctx, &tmp); |
| if (did_split) |
| av_packet_free_side_data(&tmp); |
| return ret; |
| } else { |
| return avctx->codec->send_packet(avctx, NULL); |
| } |
| } |
| |
| // Emulation via old API. Assume avpkt is likely not refcounted, while |
| // decoder output is always refcounted, and avoid copying. |
| |
| if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0]) |
| return AVERROR(EAGAIN); |
| |
| // The goal is decoding the first frame of the packet without using memcpy, |
| // because the common case is having only 1 frame per packet (especially |
| // with video, but audio too). In other cases, it can't be avoided, unless |
| // the user is feeding refcounted packets. |
| return do_decode(avctx, (AVPacket *)avpkt); |
| } |
| |
| int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame) |
| { |
| int ret; |
| |
| av_frame_unref(frame); |
| |
| if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) |
| return AVERROR(EINVAL); |
| |
| if (avctx->codec->receive_frame) { |
| if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) |
| return AVERROR_EOF; |
| return avctx->codec->receive_frame(avctx, frame); |
| } |
| |
| // Emulation via old API. |
| |
| if (!avctx->internal->buffer_frame->buf[0]) { |
| if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining) |
| return AVERROR(EAGAIN); |
| |
| while (1) { |
| if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) { |
| av_packet_unref(avctx->internal->buffer_pkt); |
| return ret; |
| } |
| // Some audio decoders may consume partial data without returning |
| // a frame (fate-wmapro-2ch). There is no way to make the caller |
| // call avcodec_receive_frame() again without returning a frame, |
| // so try to decode more in these cases. |
| if (avctx->internal->buffer_frame->buf[0] || |
| !avctx->internal->buffer_pkt->size) |
| break; |
| } |
| } |
| |
| if (!avctx->internal->buffer_frame->buf[0]) |
| return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN); |
| |
| av_frame_move_ref(frame, avctx->internal->buffer_frame); |
| return 0; |
| } |
| |
| static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet) |
| { |
| int ret; |
| *got_packet = 0; |
| |
| av_packet_unref(avctx->internal->buffer_pkt); |
| avctx->internal->buffer_pkt_valid = 0; |
| |
| if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt, |
| frame, got_packet); |
| } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
| ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt, |
| frame, got_packet); |
| } else { |
| ret = AVERROR(EINVAL); |
| } |
| |
| if (ret >= 0 && *got_packet) { |
| // Encoders must always return ref-counted buffers. |
| // Side-data only packets have no data and can be not ref-counted. |
| av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf); |
| avctx->internal->buffer_pkt_valid = 1; |
| ret = 0; |
| } else { |
| av_packet_unref(avctx->internal->buffer_pkt); |
| } |
| |
| return ret; |
| } |
| |
| int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame) |
| { |
| if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) |
| return AVERROR(EINVAL); |
| |
| if (avctx->internal->draining) |
| return AVERROR_EOF; |
| |
| if (!frame) { |
| avctx->internal->draining = 1; |
| |
| if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) |
| return 0; |
| } |
| |
| if (avctx->codec->send_frame) |
| return avctx->codec->send_frame(avctx, frame); |
| |
| // Emulation via old API. Do it here instead of avcodec_receive_packet, because: |
| // 1. if the AVFrame is not refcounted, the copying will be much more |
| // expensive than copying the packet data |
| // 2. assume few users use non-refcounted AVPackets, so usually no copy is |
| // needed |
| |
| if (avctx->internal->buffer_pkt_valid) |
| return AVERROR(EAGAIN); |
| |
| return do_encode(avctx, frame, &(int){0}); |
| } |
| |
| int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt) |
| { |
| av_packet_unref(avpkt); |
| |
| if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) |
| return AVERROR(EINVAL); |
| |
| if (avctx->codec->receive_packet) { |
| if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) |
| return AVERROR_EOF; |
| return avctx->codec->receive_packet(avctx, avpkt); |
| } |
| |
| // Emulation via old API. |
| |
| if (!avctx->internal->buffer_pkt_valid) { |
| int got_packet; |
| int ret; |
| if (!avctx->internal->draining) |
| return AVERROR(EAGAIN); |
| ret = do_encode(avctx, NULL, &got_packet); |
| if (ret < 0) |
| return ret; |
| if (ret >= 0 && !got_packet) |
| return AVERROR_EOF; |
| } |
| |
| av_packet_move_ref(avpkt, avctx->internal->buffer_pkt); |
| avctx->internal->buffer_pkt_valid = 0; |
| return 0; |
| } |
| |
| av_cold int avcodec_close(AVCodecContext *avctx) |
| { |
| int i; |
| |
| if (!avctx) |
| return 0; |
| |
| if (avcodec_is_open(avctx)) { |
| FramePool *pool = avctx->internal->pool; |
| if (CONFIG_FRAME_THREAD_ENCODER && |
| avctx->internal->frame_thread_encoder && avctx->thread_count > 1) { |
| ff_frame_thread_encoder_free(avctx); |
| } |
| if (HAVE_THREADS && avctx->internal->thread_ctx) |
| ff_thread_free(avctx); |
| if (avctx->codec && avctx->codec->close) |
| avctx->codec->close(avctx); |
| avctx->internal->byte_buffer_size = 0; |
| av_freep(&avctx->internal->byte_buffer); |
| av_frame_free(&avctx->internal->to_free); |
| av_frame_free(&avctx->internal->buffer_frame); |
| av_packet_free(&avctx->internal->buffer_pkt); |
| for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++) |
| av_buffer_pool_uninit(&pool->pools[i]); |
| av_freep(&avctx->internal->pool); |
| |
| if (avctx->hwaccel && avctx->hwaccel->uninit) |
| avctx->hwaccel->uninit(avctx); |
| av_freep(&avctx->internal->hwaccel_priv_data); |
| |
| av_freep(&avctx->internal); |
| } |
| |
| for (i = 0; i < avctx->nb_coded_side_data; i++) |
| av_freep(&avctx->coded_side_data[i].data); |
| av_freep(&avctx->coded_side_data); |
| avctx->nb_coded_side_data = 0; |
| |
| av_buffer_unref(&avctx->hw_frames_ctx); |
| |
| if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) |
| av_opt_free(avctx->priv_data); |
| av_opt_free(avctx); |
| av_freep(&avctx->priv_data); |
| if (av_codec_is_encoder(avctx->codec)) { |
| av_freep(&avctx->extradata); |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| av_frame_free(&avctx->coded_frame); |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| } |
| avctx->codec = NULL; |
| avctx->active_thread_type = 0; |
| |
| return 0; |
| } |
| |
| static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) |
| { |
| switch(id){ |
| //This is for future deprecatec codec ids, its empty since |
| //last major bump but will fill up again over time, please don't remove it |
| default : return id; |
| } |
| } |
| |
| static AVCodec *find_encdec(enum AVCodecID id, int encoder) |
| { |
| AVCodec *p, *experimental = NULL; |
| p = first_avcodec; |
| id= remap_deprecated_codec_id(id); |
| while (p) { |
| if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) && |
| p->id == id) { |
| if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) { |
| experimental = p; |
| } else |
| return p; |
| } |
| p = p->next; |
| } |
| return experimental; |
| } |
| |
| AVCodec *avcodec_find_encoder(enum AVCodecID id) |
| { |
| return find_encdec(id, 1); |
| } |
| |
| AVCodec *avcodec_find_encoder_by_name(const char *name) |
| { |
| AVCodec *p; |
| if (!name) |
| return NULL; |
| p = first_avcodec; |
| while (p) { |
| if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) |
| return p; |
| p = p->next; |
| } |
| return NULL; |
| } |
| |
| AVCodec *avcodec_find_decoder(enum AVCodecID id) |
| { |
| return find_encdec(id, 0); |
| } |
| |
| AVCodec *avcodec_find_decoder_by_name(const char *name) |
| { |
| AVCodec *p; |
| if (!name) |
| return NULL; |
| p = first_avcodec; |
| while (p) { |
| if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) |
| return p; |
| p = p->next; |
| } |
| return NULL; |
| } |
| |
| const char *avcodec_get_name(enum AVCodecID id) |
| { |
| const AVCodecDescriptor *cd; |
| AVCodec *codec; |
| |
| if (id == AV_CODEC_ID_NONE) |
| return "none"; |
| cd = avcodec_descriptor_get(id); |
| if (cd) |
| return cd->name; |
| av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id); |
| codec = avcodec_find_decoder(id); |
| if (codec) |
| return codec->name; |
| codec = avcodec_find_encoder(id); |
| if (codec) |
| return codec->name; |
| return "unknown_codec"; |
| } |
| |
| size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) |
| { |
| int i, len, ret = 0; |
| |
| #define TAG_PRINT(x) \ |
| (((x) >= '0' && (x) <= '9') || \ |
| ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ |
| ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_')) |
| |
| for (i = 0; i < 4; i++) { |
| len = snprintf(buf, buf_size, |
| TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF); |
| buf += len; |
| buf_size = buf_size > len ? buf_size - len : 0; |
| ret += len; |
| codec_tag >>= 8; |
| } |
| return ret; |
| } |
| |
| void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) |
| { |
| const char *codec_type; |
| const char *codec_name; |
| const char *profile = NULL; |
| int64_t bitrate; |
| int new_line = 0; |
| AVRational display_aspect_ratio; |
| const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", "; |
| |
| if (!buf || buf_size <= 0) |
| return; |
| codec_type = av_get_media_type_string(enc->codec_type); |
| codec_name = avcodec_get_name(enc->codec_id); |
| profile = avcodec_profile_name(enc->codec_id, enc->profile); |
| |
| snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown", |
| codec_name); |
| buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ |
| |
| if (enc->codec && strcmp(enc->codec->name, codec_name)) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name); |
| |
| if (profile) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile); |
| if ( enc->codec_type == AVMEDIA_TYPE_VIDEO |
| && av_log_get_level() >= AV_LOG_VERBOSE |
| && enc->refs) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %d reference frame%s", |
| enc->refs, enc->refs > 1 ? "s" : ""); |
| |
| if (enc->codec_tag) { |
| char tag_buf[32]; |
| av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| " (%s / 0x%04X)", tag_buf, enc->codec_tag); |
| } |
| |
| switch (enc->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: |
| { |
| char detail[256] = "("; |
| |
| av_strlcat(buf, separator, buf_size); |
| |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" : |
| av_get_pix_fmt_name(enc->pix_fmt)); |
| if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE && |
| enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth) |
| av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample); |
| if (enc->color_range != AVCOL_RANGE_UNSPECIFIED) |
| av_strlcatf(detail, sizeof(detail), "%s, ", |
| av_color_range_name(enc->color_range)); |
| |
| if (enc->colorspace != AVCOL_SPC_UNSPECIFIED || |
| enc->color_primaries != AVCOL_PRI_UNSPECIFIED || |
| enc->color_trc != AVCOL_TRC_UNSPECIFIED) { |
| if (enc->colorspace != (int)enc->color_primaries || |
| enc->colorspace != (int)enc->color_trc) { |
| new_line = 1; |
| av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ", |
| av_color_space_name(enc->colorspace), |
| av_color_primaries_name(enc->color_primaries), |
| av_color_transfer_name(enc->color_trc)); |
| } else |
| av_strlcatf(detail, sizeof(detail), "%s, ", |
| av_get_colorspace_name(enc->colorspace)); |
| } |
| |
| if (av_log_get_level() >= AV_LOG_DEBUG && |
| enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) |
| av_strlcatf(detail, sizeof(detail), "%s, ", |
| av_chroma_location_name(enc->chroma_sample_location)); |
| |
| if (strlen(detail) > 1) { |
| detail[strlen(detail) - 2] = 0; |
| av_strlcatf(buf, buf_size, "%s)", detail); |
| } |
| } |
| |
| if (enc->width) { |
| av_strlcat(buf, new_line ? separator : ", ", buf_size); |
| |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| "%dx%d", |
| enc->width, enc->height); |
| |
| if (av_log_get_level() >= AV_LOG_VERBOSE && |
| (enc->width != enc->coded_width || |
| enc->height != enc->coded_height)) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| " (%dx%d)", enc->coded_width, enc->coded_height); |
| |
| if (enc->sample_aspect_ratio.num) { |
| av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, |
| enc->width * (int64_t)enc->sample_aspect_ratio.num, |
| enc->height * (int64_t)enc->sample_aspect_ratio.den, |
| 1024 * 1024); |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| " [SAR %d:%d DAR %d:%d]", |
| enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, |
| display_aspect_ratio.num, display_aspect_ratio.den); |
| } |
| if (av_log_get_level() >= AV_LOG_DEBUG) { |
| int g = av_gcd(enc->time_base.num, enc->time_base.den); |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %d/%d", |
| enc->time_base.num / g, enc->time_base.den / g); |
| } |
| } |
| if (encode) { |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", q=%d-%d", enc->qmin, enc->qmax); |
| } else { |
| if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", Closed Captions"); |
| if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", lossless"); |
| } |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| av_strlcat(buf, separator, buf_size); |
| |
| if (enc->sample_rate) { |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| "%d Hz, ", enc->sample_rate); |
| } |
| av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout); |
| if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) { |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %s", av_get_sample_fmt_name(enc->sample_fmt)); |
| } |
| if ( enc->bits_per_raw_sample > 0 |
| && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| " (%d bit)", enc->bits_per_raw_sample); |
| break; |
| case AVMEDIA_TYPE_DATA: |
| if (av_log_get_level() >= AV_LOG_DEBUG) { |
| int g = av_gcd(enc->time_base.num, enc->time_base.den); |
| if (g) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %d/%d", |
| enc->time_base.num / g, enc->time_base.den / g); |
| } |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| if (enc->width) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %dx%d", enc->width, enc->height); |
| break; |
| default: |
| return; |
| } |
| if (encode) { |
| if (enc->flags & AV_CODEC_FLAG_PASS1) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", pass 1"); |
| if (enc->flags & AV_CODEC_FLAG_PASS2) |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", pass 2"); |
| } |
| bitrate = get_bit_rate(enc); |
| if (bitrate != 0) { |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", %"PRId64" kb/s", bitrate / 1000); |
| } else if (enc->rc_max_rate > 0) { |
| snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000); |
| } |
| } |
| |
| const char *av_get_profile_name(const AVCodec *codec, int profile) |
| { |
| const AVProfile *p; |
| if (profile == FF_PROFILE_UNKNOWN || !codec->profiles) |
| return NULL; |
| |
| for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) |
| if (p->profile == profile) |
| return p->name; |
| |
| return NULL; |
| } |
| |
| const char *avcodec_profile_name(enum AVCodecID codec_id, int profile) |
| { |
| const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id); |
| const AVProfile *p; |
| |
| if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles) |
| return NULL; |
| |
| for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) |
| if (p->profile == profile) |
| return p->name; |
| |
| return NULL; |
| } |
| |
| unsigned avcodec_version(void) |
| { |
| // av_assert0(AV_CODEC_ID_V410==164); |
| av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563); |
| av_assert0(AV_CODEC_ID_ADPCM_G722==69660); |
| // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071); |
| av_assert0(AV_CODEC_ID_SRT==94216); |
| av_assert0(LIBAVCODEC_VERSION_MICRO >= 100); |
| |
| return LIBAVCODEC_VERSION_INT; |
| } |
| |
| const char *avcodec_configuration(void) |
| { |
| return FFMPEG_CONFIGURATION; |
| } |
| |
| const char *avcodec_license(void) |
| { |
| #define LICENSE_PREFIX "libavcodec license: " |
| return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; |
| } |
| |
| void avcodec_flush_buffers(AVCodecContext *avctx) |
| { |
| avctx->internal->draining = 0; |
| avctx->internal->draining_done = 0; |
| av_frame_unref(avctx->internal->buffer_frame); |
| av_packet_unref(avctx->internal->buffer_pkt); |
| avctx->internal->buffer_pkt_valid = 0; |
| |
| if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| ff_thread_flush(avctx); |
| else if (avctx->codec->flush) |
| avctx->codec->flush(avctx); |
| |
| avctx->pts_correction_last_pts = |
| avctx->pts_correction_last_dts = INT64_MIN; |
| |
| if (!avctx->refcounted_frames) |
| av_frame_unref(avctx->internal->to_free); |
| } |
| |
| int av_get_exact_bits_per_sample(enum AVCodecID codec_id) |
| { |
| switch (codec_id) { |
| case AV_CODEC_ID_8SVX_EXP: |
| case AV_CODEC_ID_8SVX_FIB: |
| case AV_CODEC_ID_ADPCM_CT: |
| case AV_CODEC_ID_ADPCM_IMA_APC: |
| case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: |
| case AV_CODEC_ID_ADPCM_IMA_OKI: |
| case AV_CODEC_ID_ADPCM_IMA_WS: |
| case AV_CODEC_ID_ADPCM_G722: |
| case AV_CODEC_ID_ADPCM_YAMAHA: |
| case AV_CODEC_ID_ADPCM_AICA: |
| return 4; |
| case AV_CODEC_ID_DSD_LSBF: |
| case AV_CODEC_ID_DSD_MSBF: |
| case AV_CODEC_ID_DSD_LSBF_PLANAR: |
| case AV_CODEC_ID_DSD_MSBF_PLANAR: |
| case AV_CODEC_ID_PCM_ALAW: |
| case AV_CODEC_ID_PCM_MULAW: |
| case AV_CODEC_ID_PCM_S8: |
| case AV_CODEC_ID_PCM_S8_PLANAR: |
| case AV_CODEC_ID_PCM_U8: |
| case AV_CODEC_ID_PCM_ZORK: |
| case AV_CODEC_ID_SDX2_DPCM: |
| return 8; |
| case AV_CODEC_ID_PCM_S16BE: |
| case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| case AV_CODEC_ID_PCM_S16LE: |
| case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| case AV_CODEC_ID_PCM_U16BE: |
| case AV_CODEC_ID_PCM_U16LE: |
| return 16; |
| case AV_CODEC_ID_PCM_S24DAUD: |
| case AV_CODEC_ID_PCM_S24BE: |
| case AV_CODEC_ID_PCM_S24LE: |
| case AV_CODEC_ID_PCM_S24LE_PLANAR: |
| case AV_CODEC_ID_PCM_U24BE: |
| case AV_CODEC_ID_PCM_U24LE: |
| return 24; |
| case AV_CODEC_ID_PCM_S32BE: |
| case AV_CODEC_ID_PCM_S32LE: |
| case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| case AV_CODEC_ID_PCM_U32BE: |
| case AV_CODEC_ID_PCM_U32LE: |
| case AV_CODEC_ID_PCM_F32BE: |
| case AV_CODEC_ID_PCM_F32LE: |
| return 32; |
| case AV_CODEC_ID_PCM_F64BE: |
| case AV_CODEC_ID_PCM_F64LE: |
| return 64; |
| default: |
| return 0; |
| } |
| } |
| |
| enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be) |
| { |
| static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = { |
| [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
| [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
| [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
| [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
| [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
| [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
| [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
| [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
| [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
| [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
| }; |
| if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB) |
| return AV_CODEC_ID_NONE; |
| if (be < 0 || be > 1) |
| be = AV_NE(1, 0); |
| return map[fmt][be]; |
| } |
| |
| int av_get_bits_per_sample(enum AVCodecID codec_id) |
| { |
| switch (codec_id) { |
| case AV_CODEC_ID_ADPCM_SBPRO_2: |
| return 2; |
| case AV_CODEC_ID_ADPCM_SBPRO_3: |
| return 3; |
| case AV_CODEC_ID_ADPCM_SBPRO_4: |
| case AV_CODEC_ID_ADPCM_IMA_WAV: |
| case AV_CODEC_ID_ADPCM_IMA_QT: |
| case AV_CODEC_ID_ADPCM_SWF: |
| case AV_CODEC_ID_ADPCM_MS: |
| return 4; |
| default: |
| return av_get_exact_bits_per_sample(codec_id); |
| } |
| } |
| |
| static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, |
| uint32_t tag, int bits_per_coded_sample, int64_t bitrate, |
| uint8_t * extradata, int frame_size, int frame_bytes) |
| { |
| int bps = av_get_exact_bits_per_sample(id); |
| int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1; |
| |
| /* codecs with an exact constant bits per sample */ |
| if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768) |
| return (frame_bytes * 8LL) / (bps * ch); |
| bps = bits_per_coded_sample; |
| |
| /* codecs with a fixed packet duration */ |
| switch (id) { |
| case AV_CODEC_ID_ADPCM_ADX: return 32; |
| case AV_CODEC_ID_ADPCM_IMA_QT: return 64; |
| case AV_CODEC_ID_ADPCM_EA_XAS: return 128; |
| case AV_CODEC_ID_AMR_NB: |
| case AV_CODEC_ID_EVRC: |
| case AV_CODEC_ID_GSM: |
| case AV_CODEC_ID_QCELP: |
| case AV_CODEC_ID_RA_288: return 160; |
| case AV_CODEC_ID_AMR_WB: |
| case AV_CODEC_ID_GSM_MS: return 320; |
| case AV_CODEC_ID_MP1: return 384; |
| case AV_CODEC_ID_ATRAC1: return 512; |
| case AV_CODEC_ID_ATRAC3: return 1024 * framecount; |
| case AV_CODEC_ID_ATRAC3P: return 2048; |
| case AV_CODEC_ID_MP2: |
| case AV_CODEC_ID_MUSEPACK7: return 1152; |
| case AV_CODEC_ID_AC3: return 1536; |
| } |
| |
| if (sr > 0) { |
| /* calc from sample rate */ |
| if (id == AV_CODEC_ID_TTA) |
| return 256 * sr / 245; |
| else if (id == AV_CODEC_ID_DST) |
| return 588 * sr / 44100; |
| |
| if (ch > 0) { |
| /* calc from sample rate and channels */ |
| if (id == AV_CODEC_ID_BINKAUDIO_DCT) |
| return (480 << (sr / 22050)) / ch; |
| } |
| } |
| |
| if (ba > 0) { |
| /* calc from block_align */ |
| if (id == AV_CODEC_ID_SIPR) { |
| switch (ba) { |
| case 20: return 160; |
| case 19: return 144; |
| case 29: return 288; |
| case 37: return 480; |
| } |
| } else if (id == AV_CODEC_ID_ILBC) { |
| switch (ba) { |
| case 38: return 160; |
| case 50: return 240; |
| } |
| } |
| } |
| |
| if (frame_bytes > 0) { |
| /* calc from frame_bytes only */ |
| if (id == AV_CODEC_ID_TRUESPEECH) |
| return 240 * (frame_bytes / 32); |
| if (id == AV_CODEC_ID_NELLYMOSER) |
| return 256 * (frame_bytes / 64); |
| if (id == AV_CODEC_ID_RA_144) |
| return 160 * (frame_bytes / 20); |
| if (id == AV_CODEC_ID_G723_1) |
| return 240 * (frame_bytes / 24); |
| |
| if (bps > 0) { |
| /* calc from frame_bytes and bits_per_coded_sample */ |
| if (id == AV_CODEC_ID_ADPCM_G726) |
| return frame_bytes * 8 / bps; |
| } |
| |
| if (ch > 0 && ch < INT_MAX/16) { |
| /* calc from frame_bytes and channels */ |
| switch (id) { |
| case AV_CODEC_ID_ADPCM_AFC: |
| return frame_bytes / (9 * ch) * 16; |
| case AV_CODEC_ID_ADPCM_PSX: |
| case AV_CODEC_ID_ADPCM_DTK: |
| return frame_bytes / (16 * ch) * 28; |
| case AV_CODEC_ID_ADPCM_4XM: |
| case AV_CODEC_ID_ADPCM_IMA_DAT4: |
| case AV_CODEC_ID_ADPCM_IMA_ISS: |
| return (frame_bytes - 4 * ch) * 2 / ch; |
| case AV_CODEC_ID_ADPCM_IMA_SMJPEG: |
| return (frame_bytes - 4) * 2 / ch; |
| case AV_CODEC_ID_ADPCM_IMA_AMV: |
| return (frame_bytes - 8) * 2 / ch; |
| case AV_CODEC_ID_ADPCM_THP: |
| case AV_CODEC_ID_ADPCM_THP_LE: |
| if (extradata) |
| return frame_bytes * 14 / (8 * ch); |
| break; |
| case AV_CODEC_ID_ADPCM_XA: |
| return (frame_bytes / 128) * 224 / ch; |
| case AV_CODEC_ID_INTERPLAY_DPCM: |
| return (frame_bytes - 6 - ch) / ch; |
| case AV_CODEC_ID_ROQ_DPCM: |
| return (frame_bytes - 8) / ch; |
| case AV_CODEC_ID_XAN_DPCM: |
| return (frame_bytes - 2 * ch) / ch; |
| case AV_CODEC_ID_MACE3: |
| return 3 * frame_bytes / ch; |
| case AV_CODEC_ID_MACE6: |
| return 6 * frame_bytes / ch; |
| case AV_CODEC_ID_PCM_LXF: |
| return 2 * (frame_bytes / (5 * ch)); |
| case AV_CODEC_ID_IAC: |
| case AV_CODEC_ID_IMC: |
| return 4 * frame_bytes / ch; |
| } |
| |
| if (tag) { |
| /* calc from frame_bytes, channels, and codec_tag */ |
| if (id == AV_CODEC_ID_SOL_DPCM) { |
| if (tag == 3) |
| return frame_bytes / ch; |
| else |
| return frame_bytes * 2 / ch; |
| } |
| } |
| |
| if (ba > 0) { |
| /* calc from frame_bytes, channels, and block_align */ |
| int blocks = frame_bytes / ba; |
| switch (id) { |
| case AV_CODEC_ID_ADPCM_IMA_WAV: |
| if (bps < 2 || bps > 5) |
| return 0; |
| return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8); |
| case AV_CODEC_ID_ADPCM_IMA_DK3: |
| return blocks * (((ba - 16) * 2 / 3 * 4) / ch); |
| case AV_CODEC_ID_ADPCM_IMA_DK4: |
| return blocks * (1 + (ba - 4 * ch) * 2 / ch); |
| case AV_CODEC_ID_ADPCM_IMA_RAD: |
| return blocks * ((ba - 4 * ch) * 2 / ch); |
| case AV_CODEC_ID_ADPCM_MS: |
| return blocks * (2 + (ba - 7 * ch) * 2 / ch); |
| case AV_CODEC_ID_ADPCM_MTAF: |
| return blocks * (ba - 16) * 2 / ch; |
| } |
| } |
| |
| if (bps > 0) { |
| /* calc from frame_bytes, channels, and bits_per_coded_sample */ |
| switch (id) { |
| case AV_CODEC_ID_PCM_DVD: |
| if(bps<4) |
| return 0; |
| return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); |
| case AV_CODEC_ID_PCM_BLURAY: |
| if(bps<4) |
| return 0; |
| return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); |
| case AV_CODEC_ID_S302M: |
| return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; |
| } |
| } |
| } |
| } |
| |
| /* Fall back on using frame_size */ |
| if (frame_size > 1 && frame_bytes) |
| return frame_size; |
| |
| //For WMA we currently have no other means to calculate duration thus we |
| //do it here by assuming CBR, which is true for all known cases. |
| if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) { |
| if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2) |
| return (frame_bytes * 8LL * sr) / bitrate; |
| } |
| |
| return 0; |
| } |
| |
| int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) |
| { |
| return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate, |
| avctx->channels, avctx->block_align, |
| avctx->codec_tag, avctx->bits_per_coded_sample, |
| avctx->bit_rate, avctx->extradata, avctx->frame_size, |
| frame_bytes); |
| } |
| |
| int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes) |
| { |
| return get_audio_frame_duration(par->codec_id, par->sample_rate, |
| par->channels, par->block_align, |
| par->codec_tag, par->bits_per_coded_sample, |
| par->bit_rate, par->extradata, par->frame_size, |
| frame_bytes); |
| } |
| |
| #if !HAVE_THREADS |
| int ff_thread_init(AVCodecContext *s) |
| { |
| return -1; |
| } |
| |
| #endif |
| |
| unsigned int av_xiphlacing(unsigned char *s, unsigned int v) |
| { |
| unsigned int n = 0; |
| |
| while (v >= 0xff) { |
| *s++ = 0xff; |
| v -= 0xff; |
| n++; |
| } |
| *s = v; |
| n++; |
| return n; |
| } |
| |
| 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++) ; |
| return i; |
| } |
| |
| #if FF_API_MISSING_SAMPLE |
| FF_DISABLE_DEPRECATION_WARNINGS |
| void av_log_missing_feature(void *avc, const char *feature, int want_sample) |
| { |
| av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg " |
| "version to the newest one from Git. If the problem still " |
| "occurs, it means that your file has a feature which has not " |
| "been implemented.\n", feature); |
| if(want_sample) |
| av_log_ask_for_sample(avc, NULL); |
| } |
| |
| void av_log_ask_for_sample(void *avc, const char *msg, ...) |
| { |
| va_list argument_list; |
| |
| va_start(argument_list, msg); |
| |
| if (msg) |
| av_vlog(avc, AV_LOG_WARNING, msg, argument_list); |
| av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " |
| "of this file to ftp://upload.ffmpeg.org/incoming/ " |
| "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n"); |
| |
| va_end(argument_list); |
| } |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif /* FF_API_MISSING_SAMPLE */ |
| |
| static AVHWAccel *first_hwaccel = NULL; |
| static AVHWAccel **last_hwaccel = &first_hwaccel; |
| |
| void av_register_hwaccel(AVHWAccel *hwaccel) |
| { |
| AVHWAccel **p = last_hwaccel; |
| hwaccel->next = NULL; |
| while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel)) |
| p = &(*p)->next; |
| last_hwaccel = &hwaccel->next; |
| } |
| |
| AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel) |
| { |
| return hwaccel ? hwaccel->next : first_hwaccel; |
| } |
| |
| int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) |
| { |
| if (lockmgr_cb) { |
| // There is no good way to rollback a failure to destroy the |
| // mutex, so we ignore failures. |
| lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY); |
| lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY); |
| lockmgr_cb = NULL; |
| codec_mutex = NULL; |
| avformat_mutex = NULL; |
| } |
| |
| if (cb) { |
| void *new_codec_mutex = NULL; |
| void *new_avformat_mutex = NULL; |
| int err; |
| if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) { |
| return err > 0 ? AVERROR_UNKNOWN : err; |
| } |
| if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) { |
| // Ignore failures to destroy the newly created mutex. |
| cb(&new_codec_mutex, AV_LOCK_DESTROY); |
| return err > 0 ? AVERROR_UNKNOWN : err; |
| } |
| lockmgr_cb = cb; |
| codec_mutex = new_codec_mutex; |
| avformat_mutex = new_avformat_mutex; |
| } |
| |
| return 0; |
| } |
| |
| int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec) |
| { |
| if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) |
| return 0; |
| |
| if (lockmgr_cb) { |
| if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) |
| return -1; |
| } |
| |
| if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) { |
| av_log(log_ctx, AV_LOG_ERROR, |
| "Insufficient thread locking. At least %d threads are " |
| "calling avcodec_open2() at the same time right now.\n", |
| entangled_thread_counter); |
| if (!lockmgr_cb) |
| av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n"); |
| ff_avcodec_locked = 1; |
| ff_unlock_avcodec(codec); |
| return AVERROR(EINVAL); |
| } |
| av_assert0(!ff_avcodec_locked); |
| ff_avcodec_locked = 1; |
| return 0; |
| } |
| |
| int ff_unlock_avcodec(const AVCodec *codec) |
| { |
| if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) |
| return 0; |
| |
| av_assert0(ff_avcodec_locked); |
| ff_avcodec_locked = 0; |
| avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1); |
| if (lockmgr_cb) { |
| if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE)) |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int avpriv_lock_avformat(void) |
| { |
| if (lockmgr_cb) { |
| if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) |
| return -1; |
| } |
| return 0; |
| } |
| |
| int avpriv_unlock_avformat(void) |
| { |
| if (lockmgr_cb) { |
| if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) |
| return -1; |
| } |
| return 0; |
| } |
| |
| unsigned int avpriv_toupper4(unsigned int x) |
| { |
| return av_toupper(x & 0xFF) + |
| (av_toupper((x >> 8) & 0xFF) << 8) + |
| (av_toupper((x >> 16) & 0xFF) << 16) + |
| ((unsigned)av_toupper((x >> 24) & 0xFF) << 24); |
| } |
| |
| int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src) |
| { |
| int ret; |
| |
| dst->owner = src->owner; |
| |
| ret = av_frame_ref(dst->f, src->f); |
| if (ret < 0) |
| return ret; |
| |
| av_assert0(!dst->progress); |
| |
| if (src->progress && |
| !(dst->progress = av_buffer_ref(src->progress))) { |
| ff_thread_release_buffer(dst->owner, dst); |
| return AVERROR(ENOMEM); |
| } |
| |
| return 0; |
| } |
| |
| #if !HAVE_THREADS |
| |
| enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
| { |
| return ff_get_format(avctx, fmt); |
| } |
| |
| int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) |
| { |
| f->owner = avctx; |
| return ff_get_buffer(avctx, f->f, flags); |
| } |
| |
| void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f) |
| { |
| if (f->f) |
| av_frame_unref(f->f); |
| } |
| |
| void ff_thread_finish_setup(AVCodecContext *avctx) |
| { |
| } |
| |
| void ff_thread_report_progress(ThreadFrame *f, int progress, int field) |
| { |
| } |
| |
| void ff_thread_await_progress(ThreadFrame *f, int progress, int field) |
| { |
| } |
| |
| int ff_thread_can_start_frame(AVCodecContext *avctx) |
| { |
| return 1; |
| } |
| |
| int ff_alloc_entries(AVCodecContext *avctx, int count) |
| { |
| return 0; |
| } |
| |
| void ff_reset_entries(AVCodecContext *avctx) |
| { |
| } |
| |
| void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift) |
| { |
| } |
| |
| void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n) |
| { |
| } |
| |
| #endif |
| |
| int avcodec_is_open(AVCodecContext *s) |
| { |
| return !!s->internal; |
| } |
| |
| int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf) |
| { |
| int ret; |
| char *str; |
| |
| ret = av_bprint_finalize(buf, &str); |
| if (ret < 0) |
| return ret; |
| if (!av_bprint_is_complete(buf)) { |
| av_free(str); |
| return AVERROR(ENOMEM); |
| } |
| |
| avctx->extradata = str; |
| /* Note: the string is NUL terminated (so extradata can be read as a |
| * string), but the ending character is not accounted in the size (in |
| * binary formats you are likely not supposed to mux that character). When |
| * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE |
| * zeros. */ |
| avctx->extradata_size = buf->len; |
| return 0; |
| } |
| |
| const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p, |
| const uint8_t *end, |
| uint32_t *av_restrict state) |
| { |
| int i; |
| |
| av_assert0(p <= end); |
| if (p >= end) |
| return end; |
| |
| for (i = 0; i < 3; i++) { |
| uint32_t tmp = *state << 8; |
| *state = tmp + *(p++); |
| if (tmp == 0x100 || p == end) |
| return p; |
| } |
| |
| while (p < end) { |
| if (p[-1] > 1 ) p += 3; |
| else if (p[-2] ) p += 2; |
| else if (p[-3]|(p[-1]-1)) p++; |
| else { |
| p++; |
| break; |
| } |
| } |
| |
| p = FFMIN(p, end) - 4; |
| *state = AV_RB32(p); |
| |
| return p + 4; |
| } |
| |
| AVCPBProperties *av_cpb_properties_alloc(size_t *size) |
| { |
| AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties)); |
| if (!props) |
| return NULL; |
| |
| if (size) |
| *size = sizeof(*props); |
| |
| props->vbv_delay = UINT64_MAX; |
| |
| return props; |
| } |
| |
| AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx) |
| { |
| AVPacketSideData *tmp; |
| AVCPBProperties *props; |
| size_t size; |
| |
| props = av_cpb_properties_alloc(&size); |
| if (!props) |
| return NULL; |
| |
| tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp)); |
| if (!tmp) { |
| av_freep(&props); |
| return NULL; |
| } |
| |
| avctx->coded_side_data = tmp; |
| avctx->nb_coded_side_data++; |
| |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES; |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props; |
| avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size; |
| |
| return props; |
| } |
| |
| static void codec_parameters_reset(AVCodecParameters *par) |
| { |
| av_freep(&par->extradata); |
| |
| memset(par, 0, sizeof(*par)); |
| |
| par->codec_type = AVMEDIA_TYPE_UNKNOWN; |
| par->codec_id = AV_CODEC_ID_NONE; |
| par->format = -1; |
| par->field_order = AV_FIELD_UNKNOWN; |
| par->color_range = AVCOL_RANGE_UNSPECIFIED; |
| par->color_primaries = AVCOL_PRI_UNSPECIFIED; |
| par->color_trc = AVCOL_TRC_UNSPECIFIED; |
| par->color_space = AVCOL_SPC_UNSPECIFIED; |
| par->chroma_location = AVCHROMA_LOC_UNSPECIFIED; |
| par->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| par->profile = FF_PROFILE_UNKNOWN; |
| par->level = FF_LEVEL_UNKNOWN; |
| } |
| |
| AVCodecParameters *avcodec_parameters_alloc(void) |
| { |
| AVCodecParameters *par = av_mallocz(sizeof(*par)); |
| |
| if (!par) |
| return NULL; |
| codec_parameters_reset(par); |
| return par; |
| } |
| |
| void avcodec_parameters_free(AVCodecParameters **ppar) |
| { |
| AVCodecParameters *par = *ppar; |
| |
| if (!par) |
| return; |
| codec_parameters_reset(par); |
| |
| av_freep(ppar); |
| } |
| |
| int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src) |
| { |
| codec_parameters_reset(dst); |
| memcpy(dst, src, sizeof(*dst)); |
| |
| dst->extradata = NULL; |
| dst->extradata_size = 0; |
| if (src->extradata) { |
| dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (!dst->extradata) |
| return AVERROR(ENOMEM); |
| memcpy(dst->extradata, src->extradata, src->extradata_size); |
| dst->extradata_size = src->extradata_size; |
| } |
| |
| return 0; |
| } |
| |
| int avcodec_parameters_from_context(AVCodecParameters *par, |
| const AVCodecContext *codec) |
| { |
| codec_parameters_reset(par); |
| |
| par->codec_type = codec->codec_type; |
| par->codec_id = codec->codec_id; |
| par->codec_tag = codec->codec_tag; |
| |
| par->bit_rate = codec->bit_rate; |
| par->bits_per_coded_sample = codec->bits_per_coded_sample; |
| par->bits_per_raw_sample = codec->bits_per_raw_sample; |
| par->profile = codec->profile; |
| par->level = codec->level; |
| |
| switch (par->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: |
| par->format = codec->pix_fmt; |
| par->width = codec->width; |
| par->height = codec->height; |
| par->field_order = codec->field_order; |
| par->color_range = codec->color_range; |
| par->color_primaries = codec->color_primaries; |
| par->color_trc = codec->color_trc; |
| par->color_space = codec->colorspace; |
| par->chroma_location = codec->chroma_sample_location; |
| par->sample_aspect_ratio = codec->sample_aspect_ratio; |
| par->video_delay = codec->has_b_frames; |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| par->format = codec->sample_fmt; |
| par->channel_layout = codec->channel_layout; |
| par->channels = codec->channels; |
| par->sample_rate = codec->sample_rate; |
| par->block_align = codec->block_align; |
| par->frame_size = codec->frame_size; |
| par->initial_padding = codec->initial_padding; |
| par->seek_preroll = codec->seek_preroll; |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| par->width = codec->width; |
| par->height = codec->height; |
| break; |
| } |
| |
| if (codec->extradata) { |
| par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (!par->extradata) |
| return AVERROR(ENOMEM); |
| memcpy(par->extradata, codec->extradata, codec->extradata_size); |
| par->extradata_size = codec->extradata_size; |
| } |
| |
| return 0; |
| } |
| |
| int avcodec_parameters_to_context(AVCodecContext *codec, |
| const AVCodecParameters *par) |
| { |
| codec->codec_type = par->codec_type; |
| codec->codec_id = par->codec_id; |
| codec->codec_tag = par->codec_tag; |
| |
| codec->bit_rate = par->bit_rate; |
| codec->bits_per_coded_sample = par->bits_per_coded_sample; |
| codec->bits_per_raw_sample = par->bits_per_raw_sample; |
| codec->profile = par->profile; |
| codec->level = par->level; |
| |
| switch (par->codec_type) { |
| case AVMEDIA_TYPE_VIDEO: |
| codec->pix_fmt = par->format; |
| codec->width = par->width; |
| codec->height = par->height; |
| codec->field_order = par->field_order; |
| codec->color_range = par->color_range; |
| codec->color_primaries = par->color_primaries; |
| codec->color_trc = par->color_trc; |
| codec->colorspace = par->color_space; |
| codec->chroma_sample_location = par->chroma_location; |
| codec->sample_aspect_ratio = par->sample_aspect_ratio; |
| codec->has_b_frames = par->video_delay; |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| codec->sample_fmt = par->format; |
| codec->channel_layout = par->channel_layout; |
| codec->channels = par->channels; |
| codec->sample_rate = par->sample_rate; |
| codec->block_align = par->block_align; |
| codec->frame_size = par->frame_size; |
| codec->delay = |
| codec->initial_padding = par->initial_padding; |
| codec->seek_preroll = par->seek_preroll; |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| codec->width = par->width; |
| codec->height = par->height; |
| break; |
| } |
| |
| if (par->extradata) { |
| av_freep(&codec->extradata); |
| codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (!codec->extradata) |
| return AVERROR(ENOMEM); |
| memcpy(codec->extradata, par->extradata, par->extradata_size); |
| codec->extradata_size = par->extradata_size; |
| } |
| |
| return 0; |
| } |
| |
| int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, |
| void **data, size_t *sei_size) |
| { |
| AVFrameSideData *side_data = NULL; |
| uint8_t *sei_data; |
| |
| if (frame) |
| side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC); |
| |
| if (!side_data) { |
| *data = NULL; |
| return 0; |
| } |
| |
| *sei_size = side_data->size + 11; |
| *data = av_mallocz(*sei_size + prefix_len); |
| if (!*data) |
| return AVERROR(ENOMEM); |
| sei_data = (uint8_t*)*data + prefix_len; |
| |
| // country code |
| sei_data[0] = 181; |
| sei_data[1] = 0; |
| sei_data[2] = 49; |
| |
| /** |
| * 'GA94' is standard in North America for ATSC, but hard coding |
| * this style may not be the right thing to do -- other formats |
| * do exist. This information is not available in the side_data |
| * so we are going with this right now. |
| */ |
| AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4')); |
| sei_data[7] = 3; |
| sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40; |
| sei_data[9] = 0; |
| |
| memcpy(sei_data + 10, side_data->data, side_data->size); |
| |
| sei_data[side_data->size+10] = 255; |
| |
| return 0; |
| } |