| /* |
| * ffplay : Simple Media Player based on the FFmpeg libraries |
| * Copyright (c) 2003 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "config.h" |
| #include <inttypes.h> |
| #include <math.h> |
| #include <limits.h> |
| #include "libavutil/avstring.h" |
| #include "libavutil/colorspace.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/dict.h" |
| #include "libavutil/parseutils.h" |
| #include "libavutil/samplefmt.h" |
| #include "libavutil/avassert.h" |
| #include "libavformat/avformat.h" |
| #include "libavdevice/avdevice.h" |
| #include "libswscale/swscale.h" |
| #include "libavcodec/audioconvert.h" |
| #include "libavcodec/opt.h" |
| #include "libavcodec/avfft.h" |
| |
| #if CONFIG_AVFILTER |
| # include "libavfilter/avcodec.h" |
| # include "libavfilter/avfilter.h" |
| # include "libavfilter/avfiltergraph.h" |
| # include "libavfilter/vsink_buffer.h" |
| #endif |
| |
| #include <SDL.h> |
| #include <SDL_thread.h> |
| |
| #include "cmdutils.h" |
| |
| #include <unistd.h> |
| #include <assert.h> |
| |
| const char program_name[] = "ffplay"; |
| const int program_birth_year = 2003; |
| |
| #define MAX_QUEUE_SIZE (15 * 1024 * 1024) |
| #define MIN_AUDIOQ_SIZE (20 * 16 * 1024) |
| #define MIN_FRAMES 5 |
| |
| /* SDL audio buffer size, in samples. Should be small to have precise |
| A/V sync as SDL does not have hardware buffer fullness info. */ |
| #define SDL_AUDIO_BUFFER_SIZE 1024 |
| |
| /* no AV sync correction is done if below the AV sync threshold */ |
| #define AV_SYNC_THRESHOLD 0.01 |
| /* no AV correction is done if too big error */ |
| #define AV_NOSYNC_THRESHOLD 10.0 |
| |
| #define FRAME_SKIP_FACTOR 0.05 |
| |
| /* maximum audio speed change to get correct sync */ |
| #define SAMPLE_CORRECTION_PERCENT_MAX 10 |
| |
| /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ |
| #define AUDIO_DIFF_AVG_NB 20 |
| |
| /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ |
| #define SAMPLE_ARRAY_SIZE (2*65536) |
| |
| static int sws_flags = SWS_BICUBIC; |
| |
| typedef struct PacketQueue { |
| AVPacketList *first_pkt, *last_pkt; |
| int nb_packets; |
| int size; |
| int abort_request; |
| SDL_mutex *mutex; |
| SDL_cond *cond; |
| } PacketQueue; |
| |
| #define VIDEO_PICTURE_QUEUE_SIZE 2 |
| #define SUBPICTURE_QUEUE_SIZE 4 |
| |
| typedef struct VideoPicture { |
| double pts; ///<presentation time stamp for this picture |
| double target_clock; ///<av_gettime() time at which this should be displayed ideally |
| int64_t pos; ///<byte position in file |
| SDL_Overlay *bmp; |
| int width, height; /* source height & width */ |
| int allocated; |
| enum PixelFormat pix_fmt; |
| |
| #if CONFIG_AVFILTER |
| AVFilterBufferRef *picref; |
| #endif |
| } VideoPicture; |
| |
| typedef struct SubPicture { |
| double pts; /* presentation time stamp for this picture */ |
| AVSubtitle sub; |
| } SubPicture; |
| |
| enum { |
| AV_SYNC_AUDIO_MASTER, /* default choice */ |
| AV_SYNC_VIDEO_MASTER, |
| AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ |
| }; |
| |
| typedef struct VideoState { |
| SDL_Thread *read_tid; |
| SDL_Thread *video_tid; |
| SDL_Thread *refresh_tid; |
| AVInputFormat *iformat; |
| int no_background; |
| int abort_request; |
| int paused; |
| int last_paused; |
| int seek_req; |
| int seek_flags; |
| int64_t seek_pos; |
| int64_t seek_rel; |
| int read_pause_return; |
| AVFormatContext *ic; |
| |
| int audio_stream; |
| |
| int av_sync_type; |
| double external_clock; /* external clock base */ |
| int64_t external_clock_time; |
| |
| double audio_clock; |
| double audio_diff_cum; /* used for AV difference average computation */ |
| double audio_diff_avg_coef; |
| double audio_diff_threshold; |
| int audio_diff_avg_count; |
| AVStream *audio_st; |
| PacketQueue audioq; |
| int audio_hw_buf_size; |
| /* samples output by the codec. we reserve more space for avsync |
| compensation */ |
| DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; |
| DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; |
| uint8_t *audio_buf; |
| unsigned int audio_buf_size; /* in bytes */ |
| int audio_buf_index; /* in bytes */ |
| AVPacket audio_pkt_temp; |
| AVPacket audio_pkt; |
| enum AVSampleFormat audio_src_fmt; |
| AVAudioConvert *reformat_ctx; |
| |
| enum ShowMode { |
| SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB |
| } show_mode; |
| int16_t sample_array[SAMPLE_ARRAY_SIZE]; |
| int sample_array_index; |
| int last_i_start; |
| RDFTContext *rdft; |
| int rdft_bits; |
| FFTSample *rdft_data; |
| int xpos; |
| |
| SDL_Thread *subtitle_tid; |
| int subtitle_stream; |
| int subtitle_stream_changed; |
| AVStream *subtitle_st; |
| PacketQueue subtitleq; |
| SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; |
| int subpq_size, subpq_rindex, subpq_windex; |
| SDL_mutex *subpq_mutex; |
| SDL_cond *subpq_cond; |
| |
| double frame_timer; |
| double frame_last_pts; |
| double frame_last_delay; |
| double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame |
| int video_stream; |
| AVStream *video_st; |
| PacketQueue videoq; |
| double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used) |
| double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts |
| int64_t video_current_pos; ///<current displayed file pos |
| VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; |
| int pictq_size, pictq_rindex, pictq_windex; |
| SDL_mutex *pictq_mutex; |
| SDL_cond *pictq_cond; |
| #if !CONFIG_AVFILTER |
| struct SwsContext *img_convert_ctx; |
| #endif |
| |
| char filename[1024]; |
| int width, height, xleft, ytop; |
| |
| #if CONFIG_AVFILTER |
| AVFilterContext *out_video_filter; ///<the last filter in the video chain |
| #endif |
| |
| float skip_frames; |
| float skip_frames_index; |
| int refresh; |
| } VideoState; |
| |
| static int opt_help(const char *opt, const char *arg); |
| |
| /* options specified by the user */ |
| static AVInputFormat *file_iformat; |
| static const char *input_filename; |
| static const char *window_title; |
| static int fs_screen_width; |
| static int fs_screen_height; |
| static int screen_width = 0; |
| static int screen_height = 0; |
| static int frame_width = 0; |
| static int frame_height = 0; |
| static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE; |
| static int audio_disable; |
| static int video_disable; |
| static int wanted_stream[AVMEDIA_TYPE_NB]={ |
| [AVMEDIA_TYPE_AUDIO]=-1, |
| [AVMEDIA_TYPE_VIDEO]=-1, |
| [AVMEDIA_TYPE_SUBTITLE]=-1, |
| }; |
| static int seek_by_bytes=-1; |
| static int display_disable; |
| static int show_status = 1; |
| static int av_sync_type = AV_SYNC_AUDIO_MASTER; |
| static int64_t start_time = AV_NOPTS_VALUE; |
| static int64_t duration = AV_NOPTS_VALUE; |
| static int step = 0; |
| static int thread_count = 1; |
| static int workaround_bugs = 1; |
| static int fast = 0; |
| static int genpts = 0; |
| static int lowres = 0; |
| static int idct = FF_IDCT_AUTO; |
| static enum AVDiscard skip_frame= AVDISCARD_DEFAULT; |
| static enum AVDiscard skip_idct= AVDISCARD_DEFAULT; |
| static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT; |
| static int error_recognition = FF_ER_CAREFUL; |
| static int error_concealment = 3; |
| static int decoder_reorder_pts= -1; |
| static int autoexit; |
| static int exit_on_keydown; |
| static int exit_on_mousedown; |
| static int loop=1; |
| static int framedrop=-1; |
| static enum ShowMode show_mode = SHOW_MODE_NONE; |
| |
| static int rdftspeed=20; |
| #if CONFIG_AVFILTER |
| static char *vfilters = NULL; |
| #endif |
| |
| /* current context */ |
| static int is_full_screen; |
| static VideoState *cur_stream; |
| static int64_t audio_callback_time; |
| |
| static AVPacket flush_pkt; |
| |
| #define FF_ALLOC_EVENT (SDL_USEREVENT) |
| #define FF_REFRESH_EVENT (SDL_USEREVENT + 1) |
| #define FF_QUIT_EVENT (SDL_USEREVENT + 2) |
| |
| static SDL_Surface *screen; |
| |
| static int packet_queue_put(PacketQueue *q, AVPacket *pkt) |
| { |
| AVPacketList *pkt1; |
| |
| /* duplicate the packet */ |
| if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0) |
| return -1; |
| |
| pkt1 = av_malloc(sizeof(AVPacketList)); |
| if (!pkt1) |
| return -1; |
| pkt1->pkt = *pkt; |
| pkt1->next = NULL; |
| |
| |
| SDL_LockMutex(q->mutex); |
| |
| if (!q->last_pkt) |
| |
| q->first_pkt = pkt1; |
| else |
| q->last_pkt->next = pkt1; |
| q->last_pkt = pkt1; |
| q->nb_packets++; |
| q->size += pkt1->pkt.size + sizeof(*pkt1); |
| /* XXX: should duplicate packet data in DV case */ |
| SDL_CondSignal(q->cond); |
| |
| SDL_UnlockMutex(q->mutex); |
| return 0; |
| } |
| |
| /* packet queue handling */ |
| static void packet_queue_init(PacketQueue *q) |
| { |
| memset(q, 0, sizeof(PacketQueue)); |
| q->mutex = SDL_CreateMutex(); |
| q->cond = SDL_CreateCond(); |
| packet_queue_put(q, &flush_pkt); |
| } |
| |
| static void packet_queue_flush(PacketQueue *q) |
| { |
| AVPacketList *pkt, *pkt1; |
| |
| SDL_LockMutex(q->mutex); |
| for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { |
| pkt1 = pkt->next; |
| av_free_packet(&pkt->pkt); |
| av_freep(&pkt); |
| } |
| q->last_pkt = NULL; |
| q->first_pkt = NULL; |
| q->nb_packets = 0; |
| q->size = 0; |
| SDL_UnlockMutex(q->mutex); |
| } |
| |
| static void packet_queue_end(PacketQueue *q) |
| { |
| packet_queue_flush(q); |
| SDL_DestroyMutex(q->mutex); |
| SDL_DestroyCond(q->cond); |
| } |
| |
| static void packet_queue_abort(PacketQueue *q) |
| { |
| SDL_LockMutex(q->mutex); |
| |
| q->abort_request = 1; |
| |
| SDL_CondSignal(q->cond); |
| |
| SDL_UnlockMutex(q->mutex); |
| } |
| |
| /* return < 0 if aborted, 0 if no packet and > 0 if packet. */ |
| static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block) |
| { |
| AVPacketList *pkt1; |
| int ret; |
| |
| SDL_LockMutex(q->mutex); |
| |
| for(;;) { |
| if (q->abort_request) { |
| ret = -1; |
| break; |
| } |
| |
| pkt1 = q->first_pkt; |
| if (pkt1) { |
| q->first_pkt = pkt1->next; |
| if (!q->first_pkt) |
| q->last_pkt = NULL; |
| q->nb_packets--; |
| q->size -= pkt1->pkt.size + sizeof(*pkt1); |
| *pkt = pkt1->pkt; |
| av_free(pkt1); |
| ret = 1; |
| break; |
| } else if (!block) { |
| ret = 0; |
| break; |
| } else { |
| SDL_CondWait(q->cond, q->mutex); |
| } |
| } |
| SDL_UnlockMutex(q->mutex); |
| return ret; |
| } |
| |
| static inline void fill_rectangle(SDL_Surface *screen, |
| int x, int y, int w, int h, int color) |
| { |
| SDL_Rect rect; |
| rect.x = x; |
| rect.y = y; |
| rect.w = w; |
| rect.h = h; |
| SDL_FillRect(screen, &rect, color); |
| } |
| |
| #define ALPHA_BLEND(a, oldp, newp, s)\ |
| ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) |
| |
| #define RGBA_IN(r, g, b, a, s)\ |
| {\ |
| unsigned int v = ((const uint32_t *)(s))[0];\ |
| a = (v >> 24) & 0xff;\ |
| r = (v >> 16) & 0xff;\ |
| g = (v >> 8) & 0xff;\ |
| b = v & 0xff;\ |
| } |
| |
| #define YUVA_IN(y, u, v, a, s, pal)\ |
| {\ |
| unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ |
| a = (val >> 24) & 0xff;\ |
| y = (val >> 16) & 0xff;\ |
| u = (val >> 8) & 0xff;\ |
| v = val & 0xff;\ |
| } |
| |
| #define YUVA_OUT(d, y, u, v, a)\ |
| {\ |
| ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ |
| } |
| |
| |
| #define BPP 1 |
| |
| static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) |
| { |
| int wrap, wrap3, width2, skip2; |
| int y, u, v, a, u1, v1, a1, w, h; |
| uint8_t *lum, *cb, *cr; |
| const uint8_t *p; |
| const uint32_t *pal; |
| int dstx, dsty, dstw, dsth; |
| |
| dstw = av_clip(rect->w, 0, imgw); |
| dsth = av_clip(rect->h, 0, imgh); |
| dstx = av_clip(rect->x, 0, imgw - dstw); |
| dsty = av_clip(rect->y, 0, imgh - dsth); |
| lum = dst->data[0] + dsty * dst->linesize[0]; |
| cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; |
| cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; |
| |
| width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); |
| skip2 = dstx >> 1; |
| wrap = dst->linesize[0]; |
| wrap3 = rect->pict.linesize[0]; |
| p = rect->pict.data[0]; |
| pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ |
| |
| if (dsty & 1) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| cb++; |
| cr++; |
| lum++; |
| p += BPP; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += 2 * BPP; |
| lum += 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| p++; |
| lum++; |
| } |
| p += wrap3 - dstw * BPP; |
| lum += wrap - dstw - dstx; |
| cb += dst->linesize[1] - width2 - skip2; |
| cr += dst->linesize[2] - width2 - skip2; |
| } |
| for(h = dsth - (dsty & 1); h >= 2; h -= 2) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| p += wrap3; |
| lum += wrap; |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += -wrap3 + BPP; |
| lum += -wrap + 1; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| p += wrap3; |
| lum += wrap; |
| |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); |
| |
| cb++; |
| cr++; |
| p += -wrap3 + 2 * BPP; |
| lum += -wrap + 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| p += wrap3; |
| lum += wrap; |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); |
| cb++; |
| cr++; |
| p += -wrap3 + BPP; |
| lum += -wrap + 1; |
| } |
| p += wrap3 + (wrap3 - dstw * BPP); |
| lum += wrap + (wrap - dstw - dstx); |
| cb += dst->linesize[1] - width2 - skip2; |
| cr += dst->linesize[2] - width2 - skip2; |
| } |
| /* handle odd height */ |
| if (h) { |
| lum += dstx; |
| cb += skip2; |
| cr += skip2; |
| |
| if (dstx & 1) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| cb++; |
| cr++; |
| lum++; |
| p += BPP; |
| } |
| for(w = dstw - (dstx & 1); w >= 2; w -= 2) { |
| YUVA_IN(y, u, v, a, p, pal); |
| u1 = u; |
| v1 = v; |
| a1 = a; |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| |
| YUVA_IN(y, u, v, a, p + BPP, pal); |
| u1 += u; |
| v1 += v; |
| a1 += a; |
| lum[1] = ALPHA_BLEND(a, lum[1], y, 0); |
| cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); |
| cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); |
| cb++; |
| cr++; |
| p += 2 * BPP; |
| lum += 2; |
| } |
| if (w) { |
| YUVA_IN(y, u, v, a, p, pal); |
| lum[0] = ALPHA_BLEND(a, lum[0], y, 0); |
| cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); |
| cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); |
| } |
| } |
| } |
| |
| static void free_subpicture(SubPicture *sp) |
| { |
| avsubtitle_free(&sp->sub); |
| } |
| |
| static void video_image_display(VideoState *is) |
| { |
| VideoPicture *vp; |
| SubPicture *sp; |
| AVPicture pict; |
| float aspect_ratio; |
| int width, height, x, y; |
| SDL_Rect rect; |
| int i; |
| |
| vp = &is->pictq[is->pictq_rindex]; |
| if (vp->bmp) { |
| #if CONFIG_AVFILTER |
| if (vp->picref->video->sample_aspect_ratio.num == 0) |
| aspect_ratio = 0; |
| else |
| aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio); |
| #else |
| |
| /* XXX: use variable in the frame */ |
| if (is->video_st->sample_aspect_ratio.num) |
| aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio); |
| else if (is->video_st->codec->sample_aspect_ratio.num) |
| aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio); |
| else |
| aspect_ratio = 0; |
| #endif |
| if (aspect_ratio <= 0.0) |
| aspect_ratio = 1.0; |
| aspect_ratio *= (float)vp->width / (float)vp->height; |
| |
| if (is->subtitle_st) { |
| if (is->subpq_size > 0) { |
| sp = &is->subpq[is->subpq_rindex]; |
| |
| if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { |
| SDL_LockYUVOverlay (vp->bmp); |
| |
| pict.data[0] = vp->bmp->pixels[0]; |
| pict.data[1] = vp->bmp->pixels[2]; |
| pict.data[2] = vp->bmp->pixels[1]; |
| |
| pict.linesize[0] = vp->bmp->pitches[0]; |
| pict.linesize[1] = vp->bmp->pitches[2]; |
| pict.linesize[2] = vp->bmp->pitches[1]; |
| |
| for (i = 0; i < sp->sub.num_rects; i++) |
| blend_subrect(&pict, sp->sub.rects[i], |
| vp->bmp->w, vp->bmp->h); |
| |
| SDL_UnlockYUVOverlay (vp->bmp); |
| } |
| } |
| } |
| |
| |
| /* XXX: we suppose the screen has a 1.0 pixel ratio */ |
| height = is->height; |
| width = ((int)rint(height * aspect_ratio)) & ~1; |
| if (width > is->width) { |
| width = is->width; |
| height = ((int)rint(width / aspect_ratio)) & ~1; |
| } |
| x = (is->width - width) / 2; |
| y = (is->height - height) / 2; |
| is->no_background = 0; |
| rect.x = is->xleft + x; |
| rect.y = is->ytop + y; |
| rect.w = FFMAX(width, 1); |
| rect.h = FFMAX(height, 1); |
| SDL_DisplayYUVOverlay(vp->bmp, &rect); |
| } |
| } |
| |
| /* get the current audio output buffer size, in samples. With SDL, we |
| cannot have a precise information */ |
| static int audio_write_get_buf_size(VideoState *is) |
| { |
| return is->audio_buf_size - is->audio_buf_index; |
| } |
| |
| static inline int compute_mod(int a, int b) |
| { |
| return a < 0 ? a%b + b : a%b; |
| } |
| |
| static void video_audio_display(VideoState *s) |
| { |
| int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; |
| int ch, channels, h, h2, bgcolor, fgcolor; |
| int16_t time_diff; |
| int rdft_bits, nb_freq; |
| |
| for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++) |
| ; |
| nb_freq= 1<<(rdft_bits-1); |
| |
| /* compute display index : center on currently output samples */ |
| channels = s->audio_st->codec->channels; |
| nb_display_channels = channels; |
| if (!s->paused) { |
| int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); |
| n = 2 * channels; |
| delay = audio_write_get_buf_size(s); |
| delay /= n; |
| |
| /* to be more precise, we take into account the time spent since |
| the last buffer computation */ |
| if (audio_callback_time) { |
| time_diff = av_gettime() - audio_callback_time; |
| delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000; |
| } |
| |
| delay += 2*data_used; |
| if (delay < data_used) |
| delay = data_used; |
| |
| i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); |
| if (s->show_mode == SHOW_MODE_WAVES) { |
| h= INT_MIN; |
| for(i=0; i<1000; i+=channels){ |
| int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; |
| int a= s->sample_array[idx]; |
| int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE]; |
| int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE]; |
| int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE]; |
| int score= a-d; |
| if(h<score && (b^c)<0){ |
| h= score; |
| i_start= idx; |
| } |
| } |
| } |
| |
| s->last_i_start = i_start; |
| } else { |
| i_start = s->last_i_start; |
| } |
| |
| bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| if (s->show_mode == SHOW_MODE_WAVES) { |
| fill_rectangle(screen, |
| s->xleft, s->ytop, s->width, s->height, |
| bgcolor); |
| |
| fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); |
| |
| /* total height for one channel */ |
| h = s->height / nb_display_channels; |
| /* graph height / 2 */ |
| h2 = (h * 9) / 20; |
| for(ch = 0;ch < nb_display_channels; ch++) { |
| i = i_start + ch; |
| y1 = s->ytop + ch * h + (h / 2); /* position of center line */ |
| for(x = 0; x < s->width; x++) { |
| y = (s->sample_array[i] * h2) >> 15; |
| if (y < 0) { |
| y = -y; |
| ys = y1 - y; |
| } else { |
| ys = y1; |
| } |
| fill_rectangle(screen, |
| s->xleft + x, ys, 1, y, |
| fgcolor); |
| i += channels; |
| if (i >= SAMPLE_ARRAY_SIZE) |
| i -= SAMPLE_ARRAY_SIZE; |
| } |
| } |
| |
| fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); |
| |
| for(ch = 1;ch < nb_display_channels; ch++) { |
| y = s->ytop + ch * h; |
| fill_rectangle(screen, |
| s->xleft, y, s->width, 1, |
| fgcolor); |
| } |
| SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); |
| }else{ |
| nb_display_channels= FFMIN(nb_display_channels, 2); |
| if(rdft_bits != s->rdft_bits){ |
| av_rdft_end(s->rdft); |
| av_free(s->rdft_data); |
| s->rdft = av_rdft_init(rdft_bits, DFT_R2C); |
| s->rdft_bits= rdft_bits; |
| s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data)); |
| } |
| { |
| FFTSample *data[2]; |
| for(ch = 0;ch < nb_display_channels; ch++) { |
| data[ch] = s->rdft_data + 2*nb_freq*ch; |
| i = i_start + ch; |
| for(x = 0; x < 2*nb_freq; x++) { |
| double w= (x-nb_freq)*(1.0/nb_freq); |
| data[ch][x]= s->sample_array[i]*(1.0-w*w); |
| i += channels; |
| if (i >= SAMPLE_ARRAY_SIZE) |
| i -= SAMPLE_ARRAY_SIZE; |
| } |
| av_rdft_calc(s->rdft, data[ch]); |
| } |
| //least efficient way to do this, we should of course directly access it but its more than fast enough |
| for(y=0; y<s->height; y++){ |
| double w= 1/sqrt(nb_freq); |
| int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1])); |
| int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] |
| + data[1][2*y+1]*data[1][2*y+1])) : a; |
| a= FFMIN(a,255); |
| b= FFMIN(b,255); |
| fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2); |
| |
| fill_rectangle(screen, |
| s->xpos, s->height-y, 1, 1, |
| fgcolor); |
| } |
| } |
| SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); |
| s->xpos++; |
| if(s->xpos >= s->width) |
| s->xpos= s->xleft; |
| } |
| } |
| |
| static void stream_close(VideoState *is) |
| { |
| VideoPicture *vp; |
| int i; |
| /* XXX: use a special url_shutdown call to abort parse cleanly */ |
| is->abort_request = 1; |
| SDL_WaitThread(is->read_tid, NULL); |
| SDL_WaitThread(is->refresh_tid, NULL); |
| |
| /* free all pictures */ |
| for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) { |
| vp = &is->pictq[i]; |
| #if CONFIG_AVFILTER |
| if (vp->picref) { |
| avfilter_unref_buffer(vp->picref); |
| vp->picref = NULL; |
| } |
| #endif |
| if (vp->bmp) { |
| SDL_FreeYUVOverlay(vp->bmp); |
| vp->bmp = NULL; |
| } |
| } |
| SDL_DestroyMutex(is->pictq_mutex); |
| SDL_DestroyCond(is->pictq_cond); |
| SDL_DestroyMutex(is->subpq_mutex); |
| SDL_DestroyCond(is->subpq_cond); |
| #if !CONFIG_AVFILTER |
| if (is->img_convert_ctx) |
| sws_freeContext(is->img_convert_ctx); |
| #endif |
| av_free(is); |
| } |
| |
| static void do_exit(void) |
| { |
| if (cur_stream) { |
| stream_close(cur_stream); |
| cur_stream = NULL; |
| } |
| uninit_opts(); |
| #if CONFIG_AVFILTER |
| avfilter_uninit(); |
| #endif |
| if (show_status) |
| printf("\n"); |
| SDL_Quit(); |
| av_log(NULL, AV_LOG_QUIET, "%s", ""); |
| exit(0); |
| } |
| |
| static int video_open(VideoState *is){ |
| int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
| int w,h; |
| |
| if(is_full_screen) flags |= SDL_FULLSCREEN; |
| else flags |= SDL_RESIZABLE; |
| |
| if (is_full_screen && fs_screen_width) { |
| w = fs_screen_width; |
| h = fs_screen_height; |
| } else if(!is_full_screen && screen_width){ |
| w = screen_width; |
| h = screen_height; |
| #if CONFIG_AVFILTER |
| }else if (is->out_video_filter && is->out_video_filter->inputs[0]){ |
| w = is->out_video_filter->inputs[0]->w; |
| h = is->out_video_filter->inputs[0]->h; |
| #else |
| }else if (is->video_st && is->video_st->codec->width){ |
| w = is->video_st->codec->width; |
| h = is->video_st->codec->height; |
| #endif |
| } else { |
| w = 640; |
| h = 480; |
| } |
| if(screen && is->width == screen->w && screen->w == w |
| && is->height== screen->h && screen->h == h) |
| return 0; |
| |
| #ifndef __APPLE__ |
| screen = SDL_SetVideoMode(w, h, 0, flags); |
| #else |
| /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */ |
| screen = SDL_SetVideoMode(w, h, 24, flags); |
| #endif |
| if (!screen) { |
| fprintf(stderr, "SDL: could not set video mode - exiting\n"); |
| do_exit(); |
| } |
| if (!window_title) |
| window_title = input_filename; |
| SDL_WM_SetCaption(window_title, window_title); |
| |
| is->width = screen->w; |
| is->height = screen->h; |
| |
| return 0; |
| } |
| |
| /* display the current picture, if any */ |
| static void video_display(VideoState *is) |
| { |
| if(!screen) |
| video_open(cur_stream); |
| if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) |
| video_audio_display(is); |
| else if (is->video_st) |
| video_image_display(is); |
| } |
| |
| static int refresh_thread(void *opaque) |
| { |
| VideoState *is= opaque; |
| while(!is->abort_request){ |
| SDL_Event event; |
| event.type = FF_REFRESH_EVENT; |
| event.user.data1 = opaque; |
| if(!is->refresh){ |
| is->refresh=1; |
| SDL_PushEvent(&event); |
| } |
| //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly |
| usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000); |
| } |
| return 0; |
| } |
| |
| /* get the current audio clock value */ |
| static double get_audio_clock(VideoState *is) |
| { |
| double pts; |
| int hw_buf_size, bytes_per_sec; |
| pts = is->audio_clock; |
| hw_buf_size = audio_write_get_buf_size(is); |
| bytes_per_sec = 0; |
| if (is->audio_st) { |
| bytes_per_sec = is->audio_st->codec->sample_rate * |
| 2 * is->audio_st->codec->channels; |
| } |
| if (bytes_per_sec) |
| pts -= (double)hw_buf_size / bytes_per_sec; |
| return pts; |
| } |
| |
| /* get the current video clock value */ |
| static double get_video_clock(VideoState *is) |
| { |
| if (is->paused) { |
| return is->video_current_pts; |
| } else { |
| return is->video_current_pts_drift + av_gettime() / 1000000.0; |
| } |
| } |
| |
| /* get the current external clock value */ |
| static double get_external_clock(VideoState *is) |
| { |
| int64_t ti; |
| ti = av_gettime(); |
| return is->external_clock + ((ti - is->external_clock_time) * 1e-6); |
| } |
| |
| /* get the current master clock value */ |
| static double get_master_clock(VideoState *is) |
| { |
| double val; |
| |
| if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { |
| if (is->video_st) |
| val = get_video_clock(is); |
| else |
| val = get_audio_clock(is); |
| } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { |
| if (is->audio_st) |
| val = get_audio_clock(is); |
| else |
| val = get_video_clock(is); |
| } else { |
| val = get_external_clock(is); |
| } |
| return val; |
| } |
| |
| /* seek in the stream */ |
| static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) |
| { |
| if (!is->seek_req) { |
| is->seek_pos = pos; |
| is->seek_rel = rel; |
| is->seek_flags &= ~AVSEEK_FLAG_BYTE; |
| if (seek_by_bytes) |
| is->seek_flags |= AVSEEK_FLAG_BYTE; |
| is->seek_req = 1; |
| } |
| } |
| |
| /* pause or resume the video */ |
| static void stream_toggle_pause(VideoState *is) |
| { |
| if (is->paused) { |
| is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts; |
| if(is->read_pause_return != AVERROR(ENOSYS)){ |
| is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0; |
| } |
| is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0; |
| } |
| is->paused = !is->paused; |
| } |
| |
| static double compute_target_time(double frame_current_pts, VideoState *is) |
| { |
| double delay, sync_threshold, diff; |
| |
| /* compute nominal delay */ |
| delay = frame_current_pts - is->frame_last_pts; |
| if (delay <= 0 || delay >= 10.0) { |
| /* if incorrect delay, use previous one */ |
| delay = is->frame_last_delay; |
| } else { |
| is->frame_last_delay = delay; |
| } |
| is->frame_last_pts = frame_current_pts; |
| |
| /* update delay to follow master synchronisation source */ |
| if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || |
| is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
| /* if video is slave, we try to correct big delays by |
| duplicating or deleting a frame */ |
| diff = get_video_clock(is) - get_master_clock(is); |
| |
| /* skip or repeat frame. We take into account the |
| delay to compute the threshold. I still don't know |
| if it is the best guess */ |
| sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay); |
| if (fabs(diff) < AV_NOSYNC_THRESHOLD) { |
| if (diff <= -sync_threshold) |
| delay = 0; |
| else if (diff >= sync_threshold) |
| delay = 2 * delay; |
| } |
| } |
| is->frame_timer += delay; |
| |
| av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n", |
| delay, frame_current_pts, -diff); |
| |
| return is->frame_timer; |
| } |
| |
| /* called to display each frame */ |
| static void video_refresh(void *opaque) |
| { |
| VideoState *is = opaque; |
| VideoPicture *vp; |
| |
| SubPicture *sp, *sp2; |
| |
| if (is->video_st) { |
| retry: |
| if (is->pictq_size == 0) { |
| //nothing to do, no picture to display in the que |
| } else { |
| double time= av_gettime()/1000000.0; |
| double next_target; |
| /* dequeue the picture */ |
| vp = &is->pictq[is->pictq_rindex]; |
| |
| if(time < vp->target_clock) |
| return; |
| /* update current video pts */ |
| is->video_current_pts = vp->pts; |
| is->video_current_pts_drift = is->video_current_pts - time; |
| is->video_current_pos = vp->pos; |
| if(is->pictq_size > 1){ |
| VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE]; |
| assert(nextvp->target_clock >= vp->target_clock); |
| next_target= nextvp->target_clock; |
| }else{ |
| next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly |
| } |
| if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){ |
| is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR; |
| if(is->pictq_size > 1 || time > next_target + 0.5){ |
| /* update queue size and signal for next picture */ |
| if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
| is->pictq_rindex = 0; |
| |
| SDL_LockMutex(is->pictq_mutex); |
| is->pictq_size--; |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| goto retry; |
| } |
| } |
| |
| if(is->subtitle_st) { |
| if (is->subtitle_stream_changed) { |
| SDL_LockMutex(is->subpq_mutex); |
| |
| while (is->subpq_size) { |
| free_subpicture(&is->subpq[is->subpq_rindex]); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_rindex = 0; |
| |
| is->subpq_size--; |
| } |
| is->subtitle_stream_changed = 0; |
| |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| } else { |
| if (is->subpq_size > 0) { |
| sp = &is->subpq[is->subpq_rindex]; |
| |
| if (is->subpq_size > 1) |
| sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; |
| else |
| sp2 = NULL; |
| |
| if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) |
| || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) |
| { |
| free_subpicture(sp); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_rindex = 0; |
| |
| SDL_LockMutex(is->subpq_mutex); |
| is->subpq_size--; |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| } |
| } |
| } |
| } |
| |
| /* display picture */ |
| if (!display_disable) |
| video_display(is); |
| |
| /* update queue size and signal for next picture */ |
| if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) |
| is->pictq_rindex = 0; |
| |
| SDL_LockMutex(is->pictq_mutex); |
| is->pictq_size--; |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| } else if (is->audio_st) { |
| /* draw the next audio frame */ |
| |
| /* if only audio stream, then display the audio bars (better |
| than nothing, just to test the implementation */ |
| |
| /* display picture */ |
| if (!display_disable) |
| video_display(is); |
| } |
| if (show_status) { |
| static int64_t last_time; |
| int64_t cur_time; |
| int aqsize, vqsize, sqsize; |
| double av_diff; |
| |
| cur_time = av_gettime(); |
| if (!last_time || (cur_time - last_time) >= 30000) { |
| aqsize = 0; |
| vqsize = 0; |
| sqsize = 0; |
| if (is->audio_st) |
| aqsize = is->audioq.size; |
| if (is->video_st) |
| vqsize = is->videoq.size; |
| if (is->subtitle_st) |
| sqsize = is->subtitleq.size; |
| av_diff = 0; |
| if (is->audio_st && is->video_st) |
| av_diff = get_audio_clock(is) - get_video_clock(is); |
| printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", |
| get_master_clock(is), |
| av_diff, |
| FFMAX(is->skip_frames-1, 0), |
| aqsize / 1024, |
| vqsize / 1024, |
| sqsize, |
| is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, |
| is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); |
| fflush(stdout); |
| last_time = cur_time; |
| } |
| } |
| } |
| |
| /* allocate a picture (needs to do that in main thread to avoid |
| potential locking problems */ |
| static void alloc_picture(void *opaque) |
| { |
| VideoState *is = opaque; |
| VideoPicture *vp; |
| |
| vp = &is->pictq[is->pictq_windex]; |
| |
| if (vp->bmp) |
| SDL_FreeYUVOverlay(vp->bmp); |
| |
| #if CONFIG_AVFILTER |
| if (vp->picref) |
| avfilter_unref_buffer(vp->picref); |
| vp->picref = NULL; |
| |
| vp->width = is->out_video_filter->inputs[0]->w; |
| vp->height = is->out_video_filter->inputs[0]->h; |
| vp->pix_fmt = is->out_video_filter->inputs[0]->format; |
| #else |
| vp->width = is->video_st->codec->width; |
| vp->height = is->video_st->codec->height; |
| vp->pix_fmt = is->video_st->codec->pix_fmt; |
| #endif |
| |
| vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, |
| SDL_YV12_OVERLAY, |
| screen); |
| if (!vp->bmp || vp->bmp->pitches[0] < vp->width) { |
| /* SDL allocates a buffer smaller than requested if the video |
| * overlay hardware is unable to support the requested size. */ |
| fprintf(stderr, "Error: the video system does not support an image\n" |
| "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" |
| "to reduce the image size.\n", vp->width, vp->height ); |
| do_exit(); |
| } |
| |
| SDL_LockMutex(is->pictq_mutex); |
| vp->allocated = 1; |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| |
| static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos) |
| { |
| VideoPicture *vp; |
| double frame_delay, pts = pts1; |
| |
| /* compute the exact PTS for the picture if it is omitted in the stream |
| * pts1 is the dts of the pkt / pts of the frame */ |
| if (pts != 0) { |
| /* update video clock with pts, if present */ |
| is->video_clock = pts; |
| } else { |
| pts = is->video_clock; |
| } |
| /* update video clock for next frame */ |
| frame_delay = av_q2d(is->video_st->codec->time_base); |
| /* for MPEG2, the frame can be repeated, so we update the |
| clock accordingly */ |
| frame_delay += src_frame->repeat_pict * (frame_delay * 0.5); |
| is->video_clock += frame_delay; |
| |
| #if defined(DEBUG_SYNC) && 0 |
| printf("frame_type=%c clock=%0.3f pts=%0.3f\n", |
| av_get_picture_type_char(src_frame->pict_type), pts, pts1); |
| #endif |
| |
| /* wait until we have space to put a new picture */ |
| SDL_LockMutex(is->pictq_mutex); |
| |
| if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh) |
| is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR)); |
| |
| while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && |
| !is->videoq.abort_request) { |
| SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| } |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| if (is->videoq.abort_request) |
| return -1; |
| |
| vp = &is->pictq[is->pictq_windex]; |
| |
| /* alloc or resize hardware picture buffer */ |
| if (!vp->bmp || |
| #if CONFIG_AVFILTER |
| vp->width != is->out_video_filter->inputs[0]->w || |
| vp->height != is->out_video_filter->inputs[0]->h) { |
| #else |
| vp->width != is->video_st->codec->width || |
| vp->height != is->video_st->codec->height) { |
| #endif |
| SDL_Event event; |
| |
| vp->allocated = 0; |
| |
| /* the allocation must be done in the main thread to avoid |
| locking problems */ |
| event.type = FF_ALLOC_EVENT; |
| event.user.data1 = is; |
| SDL_PushEvent(&event); |
| |
| /* wait until the picture is allocated */ |
| SDL_LockMutex(is->pictq_mutex); |
| while (!vp->allocated && !is->videoq.abort_request) { |
| SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| } |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| if (is->videoq.abort_request) |
| return -1; |
| } |
| |
| /* if the frame is not skipped, then display it */ |
| if (vp->bmp) { |
| AVPicture pict; |
| #if CONFIG_AVFILTER |
| if(vp->picref) |
| avfilter_unref_buffer(vp->picref); |
| vp->picref = src_frame->opaque; |
| #endif |
| |
| /* get a pointer on the bitmap */ |
| SDL_LockYUVOverlay (vp->bmp); |
| |
| memset(&pict,0,sizeof(AVPicture)); |
| pict.data[0] = vp->bmp->pixels[0]; |
| pict.data[1] = vp->bmp->pixels[2]; |
| pict.data[2] = vp->bmp->pixels[1]; |
| |
| pict.linesize[0] = vp->bmp->pitches[0]; |
| pict.linesize[1] = vp->bmp->pitches[2]; |
| pict.linesize[2] = vp->bmp->pitches[1]; |
| |
| #if CONFIG_AVFILTER |
| //FIXME use direct rendering |
| av_picture_copy(&pict, (AVPicture *)src_frame, |
| vp->pix_fmt, vp->width, vp->height); |
| #else |
| sws_flags = av_get_int(sws_opts, "sws_flags", NULL); |
| is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, |
| vp->width, vp->height, vp->pix_fmt, vp->width, vp->height, |
| PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL); |
| if (is->img_convert_ctx == NULL) { |
| fprintf(stderr, "Cannot initialize the conversion context\n"); |
| exit(1); |
| } |
| sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, |
| 0, vp->height, pict.data, pict.linesize); |
| #endif |
| /* update the bitmap content */ |
| SDL_UnlockYUVOverlay(vp->bmp); |
| |
| vp->pts = pts; |
| vp->pos = pos; |
| |
| /* now we can update the picture count */ |
| if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) |
| is->pictq_windex = 0; |
| SDL_LockMutex(is->pictq_mutex); |
| vp->target_clock= compute_target_time(vp->pts, is); |
| |
| is->pictq_size++; |
| SDL_UnlockMutex(is->pictq_mutex); |
| } |
| return 0; |
| } |
| |
| static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt) |
| { |
| int len1 av_unused, got_picture, i; |
| |
| if (packet_queue_get(&is->videoq, pkt, 1) < 0) |
| return -1; |
| |
| if (pkt->data == flush_pkt.data) { |
| avcodec_flush_buffers(is->video_st->codec); |
| |
| SDL_LockMutex(is->pictq_mutex); |
| //Make sure there are no long delay timers (ideally we should just flush the que but thats harder) |
| for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { |
| is->pictq[i].target_clock= 0; |
| } |
| while (is->pictq_size && !is->videoq.abort_request) { |
| SDL_CondWait(is->pictq_cond, is->pictq_mutex); |
| } |
| is->video_current_pos = -1; |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| is->frame_last_pts = AV_NOPTS_VALUE; |
| is->frame_last_delay = 0; |
| is->frame_timer = (double)av_gettime() / 1000000.0; |
| is->skip_frames = 1; |
| is->skip_frames_index = 0; |
| return 0; |
| } |
| |
| len1 = avcodec_decode_video2(is->video_st->codec, |
| frame, &got_picture, |
| pkt); |
| |
| if (got_picture) { |
| if (decoder_reorder_pts == -1) { |
| *pts = frame->best_effort_timestamp; |
| } else if (decoder_reorder_pts) { |
| *pts = frame->pkt_pts; |
| } else { |
| *pts = frame->pkt_dts; |
| } |
| |
| if (*pts == AV_NOPTS_VALUE) { |
| *pts = 0; |
| } |
| |
| is->skip_frames_index += 1; |
| if(is->skip_frames_index >= is->skip_frames){ |
| is->skip_frames_index -= FFMAX(is->skip_frames, 1.0); |
| return 1; |
| } |
| |
| } |
| return 0; |
| } |
| |
| #if CONFIG_AVFILTER |
| typedef struct { |
| VideoState *is; |
| AVFrame *frame; |
| int use_dr1; |
| } FilterPriv; |
| |
| static int input_get_buffer(AVCodecContext *codec, AVFrame *pic) |
| { |
| AVFilterContext *ctx = codec->opaque; |
| AVFilterBufferRef *ref; |
| int perms = AV_PERM_WRITE; |
| int i, w, h, stride[4]; |
| unsigned edge; |
| int pixel_size; |
| |
| av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE); |
| |
| if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES) |
| perms |= AV_PERM_NEG_LINESIZES; |
| |
| if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) { |
| if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ; |
| if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE; |
| if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2; |
| } |
| if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE; |
| |
| w = codec->width; |
| h = codec->height; |
| |
| if(av_image_check_size(w, h, 0, codec)) |
| return -1; |
| |
| avcodec_align_dimensions2(codec, &w, &h, stride); |
| edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width(); |
| w += edge << 1; |
| h += edge << 1; |
| |
| if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h))) |
| return -1; |
| |
| pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1; |
| ref->video->w = codec->width; |
| ref->video->h = codec->height; |
| for(i = 0; i < 4; i ++) { |
| unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0; |
| unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0; |
| |
| if (ref->data[i]) { |
| ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift); |
| } |
| pic->data[i] = ref->data[i]; |
| pic->linesize[i] = ref->linesize[i]; |
| } |
| pic->opaque = ref; |
| pic->age = INT_MAX; |
| pic->type = FF_BUFFER_TYPE_USER; |
| pic->reordered_opaque = codec->reordered_opaque; |
| if(codec->pkt) pic->pkt_pts = codec->pkt->pts; |
| else pic->pkt_pts = AV_NOPTS_VALUE; |
| return 0; |
| } |
| |
| static void input_release_buffer(AVCodecContext *codec, AVFrame *pic) |
| { |
| memset(pic->data, 0, sizeof(pic->data)); |
| avfilter_unref_buffer(pic->opaque); |
| } |
| |
| static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic) |
| { |
| AVFilterBufferRef *ref = pic->opaque; |
| |
| if (pic->data[0] == NULL) { |
| pic->buffer_hints |= FF_BUFFER_HINTS_READABLE; |
| return codec->get_buffer(codec, pic); |
| } |
| |
| if ((codec->width != ref->video->w) || (codec->height != ref->video->h) || |
| (codec->pix_fmt != ref->format)) { |
| av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n"); |
| return -1; |
| } |
| |
| pic->reordered_opaque = codec->reordered_opaque; |
| if(codec->pkt) pic->pkt_pts = codec->pkt->pts; |
| else pic->pkt_pts = AV_NOPTS_VALUE; |
| return 0; |
| } |
| |
| static int input_init(AVFilterContext *ctx, const char *args, void *opaque) |
| { |
| FilterPriv *priv = ctx->priv; |
| AVCodecContext *codec; |
| if(!opaque) return -1; |
| |
| priv->is = opaque; |
| codec = priv->is->video_st->codec; |
| codec->opaque = ctx; |
| if((codec->codec->capabilities & CODEC_CAP_DR1) |
| ) { |
| av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE); |
| priv->use_dr1 = 1; |
| codec->get_buffer = input_get_buffer; |
| codec->release_buffer = input_release_buffer; |
| codec->reget_buffer = input_reget_buffer; |
| codec->thread_safe_callbacks = 1; |
| } |
| |
| priv->frame = avcodec_alloc_frame(); |
| |
| return 0; |
| } |
| |
| static void input_uninit(AVFilterContext *ctx) |
| { |
| FilterPriv *priv = ctx->priv; |
| av_free(priv->frame); |
| } |
| |
| static int input_request_frame(AVFilterLink *link) |
| { |
| FilterPriv *priv = link->src->priv; |
| AVFilterBufferRef *picref; |
| int64_t pts = 0; |
| AVPacket pkt; |
| int ret; |
| |
| while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt))) |
| av_free_packet(&pkt); |
| if (ret < 0) |
| return -1; |
| |
| if(priv->use_dr1 && priv->frame->opaque) { |
| picref = avfilter_ref_buffer(priv->frame->opaque, ~0); |
| } else { |
| picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h); |
| av_image_copy(picref->data, picref->linesize, |
| priv->frame->data, priv->frame->linesize, |
| picref->format, link->w, link->h); |
| } |
| av_free_packet(&pkt); |
| |
| avfilter_copy_frame_props(picref, priv->frame); |
| picref->pts = pts; |
| |
| avfilter_start_frame(link, picref); |
| avfilter_draw_slice(link, 0, link->h, 1); |
| avfilter_end_frame(link); |
| |
| return 0; |
| } |
| |
| static int input_query_formats(AVFilterContext *ctx) |
| { |
| FilterPriv *priv = ctx->priv; |
| enum PixelFormat pix_fmts[] = { |
| priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE |
| }; |
| |
| avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts)); |
| return 0; |
| } |
| |
| static int input_config_props(AVFilterLink *link) |
| { |
| FilterPriv *priv = link->src->priv; |
| AVCodecContext *c = priv->is->video_st->codec; |
| |
| link->w = c->width; |
| link->h = c->height; |
| link->time_base = priv->is->video_st->time_base; |
| |
| return 0; |
| } |
| |
| static AVFilter input_filter = |
| { |
| .name = "ffplay_input", |
| |
| .priv_size = sizeof(FilterPriv), |
| |
| .init = input_init, |
| .uninit = input_uninit, |
| |
| .query_formats = input_query_formats, |
| |
| .inputs = (AVFilterPad[]) {{ .name = NULL }}, |
| .outputs = (AVFilterPad[]) {{ .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .request_frame = input_request_frame, |
| .config_props = input_config_props, }, |
| { .name = NULL }}, |
| }; |
| |
| static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters) |
| { |
| char sws_flags_str[128]; |
| int ret; |
| enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE }; |
| AVFilterContext *filt_src = NULL, *filt_out = NULL; |
| snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags); |
| graph->scale_sws_opts = av_strdup(sws_flags_str); |
| |
| if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src", |
| NULL, is, graph)) < 0) |
| goto the_end; |
| if ((ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out", |
| NULL, pix_fmts, graph)) < 0) |
| goto the_end; |
| |
| if(vfilters) { |
| AVFilterInOut *outputs = avfilter_inout_alloc(); |
| AVFilterInOut *inputs = avfilter_inout_alloc(); |
| |
| outputs->name = av_strdup("in"); |
| outputs->filter_ctx = filt_src; |
| outputs->pad_idx = 0; |
| outputs->next = NULL; |
| |
| inputs->name = av_strdup("out"); |
| inputs->filter_ctx = filt_out; |
| inputs->pad_idx = 0; |
| inputs->next = NULL; |
| |
| if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0) |
| goto the_end; |
| av_freep(&vfilters); |
| } else { |
| if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0) |
| goto the_end; |
| } |
| |
| if ((ret = avfilter_graph_config(graph, NULL)) < 0) |
| goto the_end; |
| |
| is->out_video_filter = filt_out; |
| the_end: |
| return ret; |
| } |
| |
| #endif /* CONFIG_AVFILTER */ |
| |
| static int video_thread(void *arg) |
| { |
| VideoState *is = arg; |
| AVFrame *frame= avcodec_alloc_frame(); |
| int64_t pts_int = AV_NOPTS_VALUE, pos = -1; |
| double pts; |
| int ret; |
| |
| #if CONFIG_AVFILTER |
| AVFilterGraph *graph = avfilter_graph_alloc(); |
| AVFilterContext *filt_out = NULL; |
| |
| if ((ret = configure_video_filters(graph, is, vfilters)) < 0) |
| goto the_end; |
| filt_out = is->out_video_filter; |
| #endif |
| |
| for(;;) { |
| #if !CONFIG_AVFILTER |
| AVPacket pkt; |
| #else |
| AVFilterBufferRef *picref; |
| AVRational tb = filt_out->inputs[0]->time_base; |
| #endif |
| while (is->paused && !is->videoq.abort_request) |
| SDL_Delay(10); |
| #if CONFIG_AVFILTER |
| ret = av_vsink_buffer_get_video_buffer_ref(filt_out, &picref, 0); |
| if (picref) { |
| avfilter_fill_frame_from_video_buffer_ref(frame, picref); |
| pts_int = picref->pts; |
| pos = picref->pos; |
| frame->opaque = picref; |
| } |
| |
| if (av_cmp_q(tb, is->video_st->time_base)) { |
| av_unused int64_t pts1 = pts_int; |
| pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base); |
| av_dlog(NULL, "video_thread(): " |
| "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", |
| tb.num, tb.den, pts1, |
| is->video_st->time_base.num, is->video_st->time_base.den, pts_int); |
| } |
| #else |
| ret = get_video_frame(is, frame, &pts_int, &pkt); |
| pos = pkt.pos; |
| av_free_packet(&pkt); |
| #endif |
| |
| if (ret < 0) goto the_end; |
| |
| #if CONFIG_AVFILTER |
| if (!picref) |
| continue; |
| #endif |
| |
| pts = pts_int*av_q2d(is->video_st->time_base); |
| |
| ret = queue_picture(is, frame, pts, pos); |
| |
| if (ret < 0) |
| goto the_end; |
| |
| if (step) |
| if (cur_stream) |
| stream_toggle_pause(cur_stream); |
| } |
| the_end: |
| #if CONFIG_AVFILTER |
| avfilter_graph_free(&graph); |
| #endif |
| av_free(frame); |
| return 0; |
| } |
| |
| static int subtitle_thread(void *arg) |
| { |
| VideoState *is = arg; |
| SubPicture *sp; |
| AVPacket pkt1, *pkt = &pkt1; |
| int len1 av_unused, got_subtitle; |
| double pts; |
| int i, j; |
| int r, g, b, y, u, v, a; |
| |
| for(;;) { |
| while (is->paused && !is->subtitleq.abort_request) { |
| SDL_Delay(10); |
| } |
| if (packet_queue_get(&is->subtitleq, pkt, 1) < 0) |
| break; |
| |
| if(pkt->data == flush_pkt.data){ |
| avcodec_flush_buffers(is->subtitle_st->codec); |
| continue; |
| } |
| SDL_LockMutex(is->subpq_mutex); |
| while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && |
| !is->subtitleq.abort_request) { |
| SDL_CondWait(is->subpq_cond, is->subpq_mutex); |
| } |
| SDL_UnlockMutex(is->subpq_mutex); |
| |
| if (is->subtitleq.abort_request) |
| goto the_end; |
| |
| sp = &is->subpq[is->subpq_windex]; |
| |
| /* NOTE: ipts is the PTS of the _first_ picture beginning in |
| this packet, if any */ |
| pts = 0; |
| if (pkt->pts != AV_NOPTS_VALUE) |
| pts = av_q2d(is->subtitle_st->time_base)*pkt->pts; |
| |
| len1 = avcodec_decode_subtitle2(is->subtitle_st->codec, |
| &sp->sub, &got_subtitle, |
| pkt); |
| if (got_subtitle && sp->sub.format == 0) { |
| sp->pts = pts; |
| |
| for (i = 0; i < sp->sub.num_rects; i++) |
| { |
| for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) |
| { |
| RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); |
| y = RGB_TO_Y_CCIR(r, g, b); |
| u = RGB_TO_U_CCIR(r, g, b, 0); |
| v = RGB_TO_V_CCIR(r, g, b, 0); |
| YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); |
| } |
| } |
| |
| /* now we can update the picture count */ |
| if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) |
| is->subpq_windex = 0; |
| SDL_LockMutex(is->subpq_mutex); |
| is->subpq_size++; |
| SDL_UnlockMutex(is->subpq_mutex); |
| } |
| av_free_packet(pkt); |
| } |
| the_end: |
| return 0; |
| } |
| |
| /* copy samples for viewing in editor window */ |
| static void update_sample_display(VideoState *is, short *samples, int samples_size) |
| { |
| int size, len; |
| |
| size = samples_size / sizeof(short); |
| while (size > 0) { |
| len = SAMPLE_ARRAY_SIZE - is->sample_array_index; |
| if (len > size) |
| len = size; |
| memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); |
| samples += len; |
| is->sample_array_index += len; |
| if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) |
| is->sample_array_index = 0; |
| size -= len; |
| } |
| } |
| |
| /* return the new audio buffer size (samples can be added or deleted |
| to get better sync if video or external master clock) */ |
| static int synchronize_audio(VideoState *is, short *samples, |
| int samples_size1, double pts) |
| { |
| int n, samples_size; |
| double ref_clock; |
| |
| n = 2 * is->audio_st->codec->channels; |
| samples_size = samples_size1; |
| |
| /* if not master, then we try to remove or add samples to correct the clock */ |
| if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) || |
| is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { |
| double diff, avg_diff; |
| int wanted_size, min_size, max_size, nb_samples; |
| |
| ref_clock = get_master_clock(is); |
| diff = get_audio_clock(is) - ref_clock; |
| |
| if (diff < AV_NOSYNC_THRESHOLD) { |
| is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; |
| if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { |
| /* not enough measures to have a correct estimate */ |
| is->audio_diff_avg_count++; |
| } else { |
| /* estimate the A-V difference */ |
| avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); |
| |
| if (fabs(avg_diff) >= is->audio_diff_threshold) { |
| wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n); |
| nb_samples = samples_size / n; |
| |
| min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
| max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; |
| if (wanted_size < min_size) |
| wanted_size = min_size; |
| else if (wanted_size > max_size) |
| wanted_size = max_size; |
| |
| /* add or remove samples to correction the synchro */ |
| if (wanted_size < samples_size) { |
| /* remove samples */ |
| samples_size = wanted_size; |
| } else if (wanted_size > samples_size) { |
| uint8_t *samples_end, *q; |
| int nb; |
| |
| /* add samples */ |
| nb = (samples_size - wanted_size); |
| samples_end = (uint8_t *)samples + samples_size - n; |
| q = samples_end + n; |
| while (nb > 0) { |
| memcpy(q, samples_end, n); |
| q += n; |
| nb -= n; |
| } |
| samples_size = wanted_size; |
| } |
| } |
| #if 0 |
| printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n", |
| diff, avg_diff, samples_size - samples_size1, |
| is->audio_clock, is->video_clock, is->audio_diff_threshold); |
| #endif |
| } |
| } else { |
| /* too big difference : may be initial PTS errors, so |
| reset A-V filter */ |
| is->audio_diff_avg_count = 0; |
| is->audio_diff_cum = 0; |
| } |
| } |
| |
| return samples_size; |
| } |
| |
| /* decode one audio frame and returns its uncompressed size */ |
| static int audio_decode_frame(VideoState *is, double *pts_ptr) |
| { |
| AVPacket *pkt_temp = &is->audio_pkt_temp; |
| AVPacket *pkt = &is->audio_pkt; |
| AVCodecContext *dec= is->audio_st->codec; |
| int n, len1, data_size; |
| double pts; |
| |
| for(;;) { |
| /* NOTE: the audio packet can contain several frames */ |
| while (pkt_temp->size > 0) { |
| data_size = sizeof(is->audio_buf1); |
| len1 = avcodec_decode_audio3(dec, |
| (int16_t *)is->audio_buf1, &data_size, |
| pkt_temp); |
| if (len1 < 0) { |
| /* if error, we skip the frame */ |
| pkt_temp->size = 0; |
| break; |
| } |
| |
| pkt_temp->data += len1; |
| pkt_temp->size -= len1; |
| if (data_size <= 0) |
| continue; |
| |
| if (dec->sample_fmt != is->audio_src_fmt) { |
| if (is->reformat_ctx) |
| av_audio_convert_free(is->reformat_ctx); |
| is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1, |
| dec->sample_fmt, 1, NULL, 0); |
| if (!is->reformat_ctx) { |
| fprintf(stderr, "Cannot convert %s sample format to %s sample format\n", |
| av_get_sample_fmt_name(dec->sample_fmt), |
| av_get_sample_fmt_name(AV_SAMPLE_FMT_S16)); |
| break; |
| } |
| is->audio_src_fmt= dec->sample_fmt; |
| } |
| |
| if (is->reformat_ctx) { |
| const void *ibuf[6]= {is->audio_buf1}; |
| void *obuf[6]= {is->audio_buf2}; |
| int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)}; |
| int ostride[6]= {2}; |
| int len= data_size/istride[0]; |
| if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) { |
| printf("av_audio_convert() failed\n"); |
| break; |
| } |
| is->audio_buf= is->audio_buf2; |
| /* FIXME: existing code assume that data_size equals framesize*channels*2 |
| remove this legacy cruft */ |
| data_size= len*2; |
| }else{ |
| is->audio_buf= is->audio_buf1; |
| } |
| |
| /* if no pts, then compute it */ |
| pts = is->audio_clock; |
| *pts_ptr = pts; |
| n = 2 * dec->channels; |
| is->audio_clock += (double)data_size / |
| (double)(n * dec->sample_rate); |
| #ifdef DEBUG |
| { |
| static double last_clock; |
| printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n", |
| is->audio_clock - last_clock, |
| is->audio_clock, pts); |
| last_clock = is->audio_clock; |
| } |
| #endif |
| return data_size; |
| } |
| |
| /* free the current packet */ |
| if (pkt->data) |
| av_free_packet(pkt); |
| |
| if (is->paused || is->audioq.abort_request) { |
| return -1; |
| } |
| |
| /* read next packet */ |
| if (packet_queue_get(&is->audioq, pkt, 1) < 0) |
| return -1; |
| if(pkt->data == flush_pkt.data){ |
| avcodec_flush_buffers(dec); |
| continue; |
| } |
| |
| pkt_temp->data = pkt->data; |
| pkt_temp->size = pkt->size; |
| |
| /* if update the audio clock with the pts */ |
| if (pkt->pts != AV_NOPTS_VALUE) { |
| is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts; |
| } |
| } |
| } |
| |
| /* prepare a new audio buffer */ |
| static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) |
| { |
| VideoState *is = opaque; |
| int audio_size, len1; |
| double pts; |
| |
| audio_callback_time = av_gettime(); |
| |
| while (len > 0) { |
| if (is->audio_buf_index >= is->audio_buf_size) { |
| audio_size = audio_decode_frame(is, &pts); |
| if (audio_size < 0) { |
| /* if error, just output silence */ |
| is->audio_buf = is->audio_buf1; |
| is->audio_buf_size = 1024; |
| memset(is->audio_buf, 0, is->audio_buf_size); |
| } else { |
| if (is->show_mode != SHOW_MODE_VIDEO) |
| update_sample_display(is, (int16_t *)is->audio_buf, audio_size); |
| audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, |
| pts); |
| is->audio_buf_size = audio_size; |
| } |
| is->audio_buf_index = 0; |
| } |
| len1 = is->audio_buf_size - is->audio_buf_index; |
| if (len1 > len) |
| len1 = len; |
| memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); |
| len -= len1; |
| stream += len1; |
| is->audio_buf_index += len1; |
| } |
| } |
| |
| /* open a given stream. Return 0 if OK */ |
| static int stream_component_open(VideoState *is, int stream_index) |
| { |
| AVFormatContext *ic = is->ic; |
| AVCodecContext *avctx; |
| AVCodec *codec; |
| SDL_AudioSpec wanted_spec, spec; |
| |
| if (stream_index < 0 || stream_index >= ic->nb_streams) |
| return -1; |
| avctx = ic->streams[stream_index]->codec; |
| |
| /* prepare audio output */ |
| if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
| if (avctx->channels > 0) { |
| avctx->request_channels = FFMIN(2, avctx->channels); |
| } else { |
| avctx->request_channels = 2; |
| } |
| } |
| |
| codec = avcodec_find_decoder(avctx->codec_id); |
| if (!codec) |
| return -1; |
| |
| avctx->workaround_bugs = workaround_bugs; |
| avctx->lowres = lowres; |
| if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; |
| avctx->idct_algo= idct; |
| if(fast) avctx->flags2 |= CODEC_FLAG2_FAST; |
| avctx->skip_frame= skip_frame; |
| avctx->skip_idct= skip_idct; |
| avctx->skip_loop_filter= skip_loop_filter; |
| avctx->error_recognition= error_recognition; |
| avctx->error_concealment= error_concealment; |
| avctx->thread_count= thread_count; |
| |
| set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec); |
| |
| if(codec->capabilities & CODEC_CAP_DR1) |
| avctx->flags |= CODEC_FLAG_EMU_EDGE; |
| |
| if (avcodec_open(avctx, codec) < 0) |
| return -1; |
| |
| /* prepare audio output */ |
| if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { |
| if(avctx->sample_rate <= 0 || avctx->channels <= 0){ |
| fprintf(stderr, "Invalid sample rate or channel count\n"); |
| return -1; |
| } |
| wanted_spec.freq = avctx->sample_rate; |
| wanted_spec.format = AUDIO_S16SYS; |
| wanted_spec.channels = avctx->channels; |
| wanted_spec.silence = 0; |
| wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; |
| wanted_spec.callback = sdl_audio_callback; |
| wanted_spec.userdata = is; |
| if (SDL_OpenAudio(&wanted_spec, &spec) < 0) { |
| fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError()); |
| return -1; |
| } |
| is->audio_hw_buf_size = spec.size; |
| is->audio_src_fmt= AV_SAMPLE_FMT_S16; |
| } |
| |
| ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; |
| switch(avctx->codec_type) { |
| case AVMEDIA_TYPE_AUDIO: |
| is->audio_stream = stream_index; |
| is->audio_st = ic->streams[stream_index]; |
| is->audio_buf_size = 0; |
| is->audio_buf_index = 0; |
| |
| /* init averaging filter */ |
| is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); |
| is->audio_diff_avg_count = 0; |
| /* since we do not have a precise anough audio fifo fullness, |
| we correct audio sync only if larger than this threshold */ |
| is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate; |
| |
| memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); |
| packet_queue_init(&is->audioq); |
| SDL_PauseAudio(0); |
| break; |
| case AVMEDIA_TYPE_VIDEO: |
| is->video_stream = stream_index; |
| is->video_st = ic->streams[stream_index]; |
| |
| packet_queue_init(&is->videoq); |
| is->video_tid = SDL_CreateThread(video_thread, is); |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| is->subtitle_stream = stream_index; |
| is->subtitle_st = ic->streams[stream_index]; |
| packet_queue_init(&is->subtitleq); |
| |
| is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); |
| break; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| static void stream_component_close(VideoState *is, int stream_index) |
| { |
| AVFormatContext *ic = is->ic; |
| AVCodecContext *avctx; |
| |
| if (stream_index < 0 || stream_index >= ic->nb_streams) |
| return; |
| avctx = ic->streams[stream_index]->codec; |
| |
| switch(avctx->codec_type) { |
| case AVMEDIA_TYPE_AUDIO: |
| packet_queue_abort(&is->audioq); |
| |
| SDL_CloseAudio(); |
| |
| packet_queue_end(&is->audioq); |
| if (is->reformat_ctx) |
| av_audio_convert_free(is->reformat_ctx); |
| is->reformat_ctx = NULL; |
| break; |
| case AVMEDIA_TYPE_VIDEO: |
| packet_queue_abort(&is->videoq); |
| |
| /* note: we also signal this mutex to make sure we deblock the |
| video thread in all cases */ |
| SDL_LockMutex(is->pictq_mutex); |
| SDL_CondSignal(is->pictq_cond); |
| SDL_UnlockMutex(is->pictq_mutex); |
| |
| SDL_WaitThread(is->video_tid, NULL); |
| |
| packet_queue_end(&is->videoq); |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| packet_queue_abort(&is->subtitleq); |
| |
| /* note: we also signal this mutex to make sure we deblock the |
| video thread in all cases */ |
| SDL_LockMutex(is->subpq_mutex); |
| is->subtitle_stream_changed = 1; |
| |
| SDL_CondSignal(is->subpq_cond); |
| SDL_UnlockMutex(is->subpq_mutex); |
| |
| SDL_WaitThread(is->subtitle_tid, NULL); |
| |
| packet_queue_end(&is->subtitleq); |
| break; |
| default: |
| break; |
| } |
| |
| ic->streams[stream_index]->discard = AVDISCARD_ALL; |
| avcodec_close(avctx); |
| switch(avctx->codec_type) { |
| case AVMEDIA_TYPE_AUDIO: |
| is->audio_st = NULL; |
| is->audio_stream = -1; |
| break; |
| case AVMEDIA_TYPE_VIDEO: |
| is->video_st = NULL; |
| is->video_stream = -1; |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| is->subtitle_st = NULL; |
| is->subtitle_stream = -1; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* since we have only one decoding thread, we can use a global |
| variable instead of a thread local variable */ |
| static VideoState *global_video_state; |
| |
| static int decode_interrupt_cb(void) |
| { |
| return (global_video_state && global_video_state->abort_request); |
| } |
| |
| /* this thread gets the stream from the disk or the network */ |
| static int read_thread(void *arg) |
| { |
| VideoState *is = arg; |
| AVFormatContext *ic = NULL; |
| int err, i, ret; |
| int st_index[AVMEDIA_TYPE_NB]; |
| AVPacket pkt1, *pkt = &pkt1; |
| int eof=0; |
| int pkt_in_play_range = 0; |
| AVDictionaryEntry *t; |
| |
| memset(st_index, -1, sizeof(st_index)); |
| is->video_stream = -1; |
| is->audio_stream = -1; |
| is->subtitle_stream = -1; |
| |
| global_video_state = is; |
| avio_set_interrupt_cb(decode_interrupt_cb); |
| |
| err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); |
| if (err < 0) { |
| print_error(is->filename, err); |
| ret = -1; |
| goto fail; |
| } |
| if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
| av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
| ret = AVERROR_OPTION_NOT_FOUND; |
| goto fail; |
| } |
| is->ic = ic; |
| |
| if(genpts) |
| ic->flags |= AVFMT_FLAG_GENPTS; |
| |
| err = av_find_stream_info(ic); |
| if (err < 0) { |
| fprintf(stderr, "%s: could not find codec parameters\n", is->filename); |
| ret = -1; |
| goto fail; |
| } |
| if(ic->pb) |
| ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end |
| |
| if(seek_by_bytes<0) |
| seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT); |
| |
| /* if seeking requested, we execute it */ |
| if (start_time != AV_NOPTS_VALUE) { |
| int64_t timestamp; |
| |
| timestamp = start_time; |
| /* add the stream start time */ |
| if (ic->start_time != AV_NOPTS_VALUE) |
| timestamp += ic->start_time; |
| ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); |
| if (ret < 0) { |
| fprintf(stderr, "%s: could not seek to position %0.3f\n", |
| is->filename, (double)timestamp / AV_TIME_BASE); |
| } |
| } |
| |
| for (i = 0; i < ic->nb_streams; i++) |
| ic->streams[i]->discard = AVDISCARD_ALL; |
| if (!video_disable) |
| st_index[AVMEDIA_TYPE_VIDEO] = |
| av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, |
| wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); |
| if (!audio_disable) |
| st_index[AVMEDIA_TYPE_AUDIO] = |
| av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, |
| wanted_stream[AVMEDIA_TYPE_AUDIO], |
| st_index[AVMEDIA_TYPE_VIDEO], |
| NULL, 0); |
| if (!video_disable) |
| st_index[AVMEDIA_TYPE_SUBTITLE] = |
| av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, |
| wanted_stream[AVMEDIA_TYPE_SUBTITLE], |
| (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? |
| st_index[AVMEDIA_TYPE_AUDIO] : |
| st_index[AVMEDIA_TYPE_VIDEO]), |
| NULL, 0); |
| if (show_status) { |
| av_dump_format(ic, 0, is->filename, 0); |
| } |
| |
| is->show_mode = show_mode; |
| |
| /* open the streams */ |
| if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { |
| stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); |
| } |
| |
| ret=-1; |
| if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { |
| ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); |
| } |
| is->refresh_tid = SDL_CreateThread(refresh_thread, is); |
| if (is->show_mode == SHOW_MODE_NONE) |
| is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; |
| |
| if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { |
| stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); |
| } |
| |
| if (is->video_stream < 0 && is->audio_stream < 0) { |
| fprintf(stderr, "%s: could not open codecs\n", is->filename); |
| ret = -1; |
| goto fail; |
| } |
| |
| for(;;) { |
| if (is->abort_request) |
| break; |
| if (is->paused != is->last_paused) { |
| is->last_paused = is->paused; |
| if (is->paused) |
| is->read_pause_return= av_read_pause(ic); |
| else |
| av_read_play(ic); |
| } |
| #if CONFIG_RTSP_DEMUXER |
| if (is->paused && !strcmp(ic->iformat->name, "rtsp")) { |
| /* wait 10 ms to avoid trying to get another packet */ |
| /* XXX: horrible */ |
| SDL_Delay(10); |
| continue; |
| } |
| #endif |
| if (is->seek_req) { |
| int64_t seek_target= is->seek_pos; |
| int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; |
| int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; |
| //FIXME the +-2 is due to rounding being not done in the correct direction in generation |
| // of the seek_pos/seek_rel variables |
| |
| ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); |
| if (ret < 0) { |
| fprintf(stderr, "%s: error while seeking\n", is->ic->filename); |
| }else{ |
| if (is->audio_stream >= 0) { |
| packet_queue_flush(&is->audioq); |
| packet_queue_put(&is->audioq, &flush_pkt); |
| } |
| if (is->subtitle_stream >= 0) { |
| packet_queue_flush(&is->subtitleq); |
| packet_queue_put(&is->subtitleq, &flush_pkt); |
| } |
| if (is->video_stream >= 0) { |
| packet_queue_flush(&is->videoq); |
| packet_queue_put(&is->videoq, &flush_pkt); |
| } |
| } |
| is->seek_req = 0; |
| eof= 0; |
| } |
| |
| /* if the queue are full, no need to read more */ |
| if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE |
| || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0) |
| && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0) |
| && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) { |
| /* wait 10 ms */ |
| SDL_Delay(10); |
| continue; |
| } |
| if(eof) { |
| if(is->video_stream >= 0){ |
| av_init_packet(pkt); |
| pkt->data=NULL; |
| pkt->size=0; |
| pkt->stream_index= is->video_stream; |
| packet_queue_put(&is->videoq, pkt); |
| } |
| SDL_Delay(10); |
| if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){ |
| if(loop!=1 && (!loop || --loop)){ |
| stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); |
| }else if(autoexit){ |
| ret=AVERROR_EOF; |
| goto fail; |
| } |
| } |
| eof=0; |
| continue; |
| } |
| ret = av_read_frame(ic, pkt); |
| if (ret < 0) { |
| if (ret == AVERROR_EOF || url_feof(ic->pb)) |
| eof=1; |
| if (ic->pb && ic->pb->error) |
| break; |
| SDL_Delay(100); /* wait for user event */ |
| continue; |
| } |
| /* check if packet is in play range specified by user, then queue, otherwise discard */ |
| pkt_in_play_range = duration == AV_NOPTS_VALUE || |
| (pkt->pts - ic->streams[pkt->stream_index]->start_time) * |
| av_q2d(ic->streams[pkt->stream_index]->time_base) - |
| (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000 |
| <= ((double)duration/1000000); |
| if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { |
| packet_queue_put(&is->audioq, pkt); |
| } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) { |
| packet_queue_put(&is->videoq, pkt); |
| } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { |
| packet_queue_put(&is->subtitleq, pkt); |
| } else { |
| av_free_packet(pkt); |
| } |
| } |
| /* wait until the end */ |
| while (!is->abort_request) { |
| SDL_Delay(100); |
| } |
| |
| ret = 0; |
| fail: |
| /* disable interrupting */ |
| global_video_state = NULL; |
| |
| /* close each stream */ |
| if (is->audio_stream >= 0) |
| stream_component_close(is, is->audio_stream); |
| if (is->video_stream >= 0) |
| stream_component_close(is, is->video_stream); |
| if (is->subtitle_stream >= 0) |
| stream_component_close(is, is->subtitle_stream); |
| if (is->ic) { |
| av_close_input_file(is->ic); |
| is->ic = NULL; /* safety */ |
| } |
| avio_set_interrupt_cb(NULL); |
| |
| if (ret != 0) { |
| SDL_Event event; |
| |
| event.type = FF_QUIT_EVENT; |
| event.user.data1 = is; |
| SDL_PushEvent(&event); |
| } |
| return 0; |
| } |
| |
| static VideoState *stream_open(const char *filename, AVInputFormat *iformat) |
| { |
| VideoState *is; |
| |
| is = av_mallocz(sizeof(VideoState)); |
| if (!is) |
| return NULL; |
| av_strlcpy(is->filename, filename, sizeof(is->filename)); |
| is->iformat = iformat; |
| is->ytop = 0; |
| is->xleft = 0; |
| |
| /* start video display */ |
| is->pictq_mutex = SDL_CreateMutex(); |
| is->pictq_cond = SDL_CreateCond(); |
| |
| is->subpq_mutex = SDL_CreateMutex(); |
| is->subpq_cond = SDL_CreateCond(); |
| |
| is->av_sync_type = av_sync_type; |
| is->read_tid = SDL_CreateThread(read_thread, is); |
| if (!is->read_tid) { |
| av_free(is); |
| return NULL; |
| } |
| return is; |
| } |
| |
| static void stream_cycle_channel(VideoState *is, int codec_type) |
| { |
| AVFormatContext *ic = is->ic; |
| int start_index, stream_index; |
| AVStream *st; |
| |
| if (codec_type == AVMEDIA_TYPE_VIDEO) |
| start_index = is->video_stream; |
| else if (codec_type == AVMEDIA_TYPE_AUDIO) |
| start_index = is->audio_stream; |
| else |
| start_index = is->subtitle_stream; |
| if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0)) |
| return; |
| stream_index = start_index; |
| for(;;) { |
| if (++stream_index >= is->ic->nb_streams) |
| { |
| if (codec_type == AVMEDIA_TYPE_SUBTITLE) |
| { |
| stream_index = -1; |
| goto the_end; |
| } else |
| stream_index = 0; |
| } |
| if (stream_index == start_index) |
| return; |
| st = ic->streams[stream_index]; |
| if (st->codec->codec_type == codec_type) { |
| /* check that parameters are OK */ |
| switch(codec_type) { |
| case AVMEDIA_TYPE_AUDIO: |
| if (st->codec->sample_rate != 0 && |
| st->codec->channels != 0) |
| goto the_end; |
| break; |
| case AVMEDIA_TYPE_VIDEO: |
| case AVMEDIA_TYPE_SUBTITLE: |
| goto the_end; |
| default: |
| break; |
| } |
| } |
| } |
| the_end: |
| stream_component_close(is, start_index); |
| stream_component_open(is, stream_index); |
| } |
| |
| |
| static void toggle_full_screen(void) |
| { |
| is_full_screen = !is_full_screen; |
| video_open(cur_stream); |
| } |
| |
| static void toggle_pause(void) |
| { |
| if (cur_stream) |
| stream_toggle_pause(cur_stream); |
| step = 0; |
| } |
| |
| static void step_to_next_frame(void) |
| { |
| if (cur_stream) { |
| /* if the stream is paused unpause it, then step */ |
| if (cur_stream->paused) |
| stream_toggle_pause(cur_stream); |
| } |
| step = 1; |
| } |
| |
| static void toggle_audio_display(void) |
| { |
| if (cur_stream) { |
| int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); |
| cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB; |
| fill_rectangle(screen, |
| cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height, |
| bgcolor); |
| SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height); |
| } |
| } |
| |
| /* handle an event sent by the GUI */ |
| static void event_loop(void) |
| { |
| SDL_Event event; |
| double incr, pos, frac; |
| |
| for(;;) { |
| double x; |
| SDL_WaitEvent(&event); |
| switch(event.type) { |
| case SDL_KEYDOWN: |
| if (exit_on_keydown) { |
| do_exit(); |
| break; |
| } |
| switch(event.key.keysym.sym) { |
| case SDLK_ESCAPE: |
| case SDLK_q: |
| do_exit(); |
| break; |
| case SDLK_f: |
| toggle_full_screen(); |
| break; |
| case SDLK_p: |
| case SDLK_SPACE: |
| toggle_pause(); |
| break; |
| case SDLK_s: //S: Step to next frame |
| step_to_next_frame(); |
| break; |
| case SDLK_a: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); |
| break; |
| case SDLK_v: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); |
| break; |
| case SDLK_t: |
| if (cur_stream) |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); |
| break; |
| case SDLK_w: |
| toggle_audio_display(); |
| break; |
| case SDLK_LEFT: |
| incr = -10.0; |
| goto do_seek; |
| case SDLK_RIGHT: |
| incr = 10.0; |
| goto do_seek; |
| case SDLK_UP: |
| incr = 60.0; |
| goto do_seek; |
| case SDLK_DOWN: |
| incr = -60.0; |
| do_seek: |
| if (cur_stream) { |
| if (seek_by_bytes) { |
| if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){ |
| pos= cur_stream->video_current_pos; |
| }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){ |
| pos= cur_stream->audio_pkt.pos; |
| }else |
| pos = avio_tell(cur_stream->ic->pb); |
| if (cur_stream->ic->bit_rate) |
| incr *= cur_stream->ic->bit_rate / 8.0; |
| else |
| incr *= 180000.0; |
| pos += incr; |
| stream_seek(cur_stream, pos, incr, 1); |
| } else { |
| pos = get_master_clock(cur_stream); |
| pos += incr; |
| stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| break; |
| case SDL_MOUSEBUTTONDOWN: |
| if (exit_on_mousedown) { |
| do_exit(); |
| break; |
| } |
| case SDL_MOUSEMOTION: |
| if(event.type ==SDL_MOUSEBUTTONDOWN){ |
| x= event.button.x; |
| }else{ |
| if(event.motion.state != SDL_PRESSED) |
| break; |
| x= event.motion.x; |
| } |
| if (cur_stream) { |
| if(seek_by_bytes || cur_stream->ic->duration<=0){ |
| uint64_t size= avio_size(cur_stream->ic->pb); |
| stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); |
| }else{ |
| int64_t ts; |
| int ns, hh, mm, ss; |
| int tns, thh, tmm, tss; |
| tns = cur_stream->ic->duration/1000000LL; |
| thh = tns/3600; |
| tmm = (tns%3600)/60; |
| tss = (tns%60); |
| frac = x/cur_stream->width; |
| ns = frac*tns; |
| hh = ns/3600; |
| mm = (ns%3600)/60; |
| ss = (ns%60); |
| fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, |
| hh, mm, ss, thh, tmm, tss); |
| ts = frac*cur_stream->ic->duration; |
| if (cur_stream->ic->start_time != AV_NOPTS_VALUE) |
| ts += cur_stream->ic->start_time; |
| stream_seek(cur_stream, ts, 0, 0); |
| } |
| } |
| break; |
| case SDL_VIDEORESIZE: |
| if (cur_stream) { |
| screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, |
| SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); |
| screen_width = cur_stream->width = event.resize.w; |
| screen_height= cur_stream->height= event.resize.h; |
| } |
| break; |
| case SDL_QUIT: |
| case FF_QUIT_EVENT: |
| do_exit(); |
| break; |
| case FF_ALLOC_EVENT: |
| video_open(event.user.data1); |
| alloc_picture(event.user.data1); |
| break; |
| case FF_REFRESH_EVENT: |
| video_refresh(event.user.data1); |
| cur_stream->refresh=0; |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| static int opt_frame_size(const char *opt, const char *arg) |
| { |
| if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) { |
| fprintf(stderr, "Incorrect frame size\n"); |
| return AVERROR(EINVAL); |
| } |
| if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { |
| fprintf(stderr, "Frame size must be a multiple of 2\n"); |
| return AVERROR(EINVAL); |
| } |
| return 0; |
| } |
| |
| static int opt_width(const char *opt, const char *arg) |
| { |
| screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| return 0; |
| } |
| |
| static int opt_height(const char *opt, const char *arg) |
| { |
| screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); |
| return 0; |
| } |
| |
| static int opt_format(const char *opt, const char *arg) |
| { |
| file_iformat = av_find_input_format(arg); |
| if (!file_iformat) { |
| fprintf(stderr, "Unknown input format: %s\n", arg); |
| return AVERROR(EINVAL); |
| } |
| return 0; |
| } |
| |
| static int opt_frame_pix_fmt(const char *opt, const char *arg) |
| { |
| frame_pix_fmt = av_get_pix_fmt(arg); |
| return 0; |
| } |
| |
| static int opt_sync(const char *opt, const char *arg) |
| { |
| if (!strcmp(arg, "audio")) |
| av_sync_type = AV_SYNC_AUDIO_MASTER; |
| else if (!strcmp(arg, "video")) |
| av_sync_type = AV_SYNC_VIDEO_MASTER; |
| else if (!strcmp(arg, "ext")) |
| av_sync_type = AV_SYNC_EXTERNAL_CLOCK; |
| else { |
| fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); |
| exit(1); |
| } |
| return 0; |
| } |
| |
| static int opt_seek(const char *opt, const char *arg) |
| { |
| start_time = parse_time_or_die(opt, arg, 1); |
| return 0; |
| } |
| |
| static int opt_duration(const char *opt, const char *arg) |
| { |
| duration = parse_time_or_die(opt, arg, 1); |
| return 0; |
| } |
| |
| static int opt_thread_count(const char *opt, const char *arg) |
| { |
| thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
| #if !HAVE_THREADS |
| fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n"); |
| #endif |
| return 0; |
| } |
| |
| static int opt_show_mode(const char *opt, const char *arg) |
| { |
| show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : |
| !strcmp(arg, "waves") ? SHOW_MODE_WAVES : |
| !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : |
| parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); |
| return 0; |
| } |
| |
| static int opt_input_file(const char *opt, const char *filename) |
| { |
| if (input_filename) { |
| fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", |
| filename, input_filename); |
| exit(1); |
| } |
| if (!strcmp(filename, "-")) |
| filename = "pipe:"; |
| input_filename = filename; |
| return 0; |
| } |
| |
| static const OptionDef options[] = { |
| #include "cmdutils_common_opts.h" |
| { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" }, |
| { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" }, |
| { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, |
| { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" }, |
| { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" }, |
| { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" }, |
| { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" }, |
| { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" }, |
| { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" }, |
| { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" }, |
| { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" }, |
| { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" }, |
| { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" }, |
| { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, |
| { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" }, |
| { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" }, |
| { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" }, |
| { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" }, |
| { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" }, |
| { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""}, |
| { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" }, |
| { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" }, |
| { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" }, |
| { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" }, |
| { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" }, |
| { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" }, |
| { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" }, |
| { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" }, |
| { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" }, |
| { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" }, |
| { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" }, |
| { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" }, |
| { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" }, |
| { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" }, |
| { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" }, |
| #if CONFIG_AVFILTER |
| { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" }, |
| #endif |
| { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" }, |
| { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, |
| { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, |
| { "i", HAS_ARG, {(void *)opt_input_file}, "read specified file", "input_file"}, |
| { NULL, }, |
| }; |
| |
| static void show_usage(void) |
| { |
| printf("Simple media player\n"); |
| printf("usage: ffplay [options] input_file\n"); |
| printf("\n"); |
| } |
| |
| static int opt_help(const char *opt, const char *arg) |
| { |
| av_log_set_callback(log_callback_help); |
| show_usage(); |
| show_help_options(options, "Main options:\n", |
| OPT_EXPERT, 0); |
| show_help_options(options, "\nAdvanced options:\n", |
| OPT_EXPERT, OPT_EXPERT); |
| printf("\n"); |
| av_opt_show2(avcodec_opts[0], NULL, |
| AV_OPT_FLAG_DECODING_PARAM, 0); |
| printf("\n"); |
| av_opt_show2(avformat_opts, NULL, |
| AV_OPT_FLAG_DECODING_PARAM, 0); |
| #if !CONFIG_AVFILTER |
| printf("\n"); |
| av_opt_show2(sws_opts, NULL, |
| AV_OPT_FLAG_ENCODING_PARAM, 0); |
| #endif |
| printf("\nWhile playing:\n" |
| "q, ESC quit\n" |
| "f toggle full screen\n" |
| "p, SPC pause\n" |
| "a cycle audio channel\n" |
| "v cycle video channel\n" |
| "t cycle subtitle channel\n" |
| "w show audio waves\n" |
| "s activate frame-step mode\n" |
| "left/right seek backward/forward 10 seconds\n" |
| "down/up seek backward/forward 1 minute\n" |
| "mouse click seek to percentage in file corresponding to fraction of width\n" |
| ); |
| return 0; |
| } |
| |
| /* Called from the main */ |
| int main(int argc, char **argv) |
| { |
| int flags; |
| |
| av_log_set_flags(AV_LOG_SKIP_REPEATED); |
| |
| /* register all codecs, demux and protocols */ |
| avcodec_register_all(); |
| #if CONFIG_AVDEVICE |
| avdevice_register_all(); |
| #endif |
| #if CONFIG_AVFILTER |
| avfilter_register_all(); |
| #endif |
| av_register_all(); |
| |
| init_opts(); |
| |
| show_banner(); |
| |
| parse_options(argc, argv, options, opt_input_file); |
| |
| if (!input_filename) { |
| show_usage(); |
| fprintf(stderr, "An input file must be specified\n"); |
| fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n"); |
| exit(1); |
| } |
| |
| if (display_disable) { |
| video_disable = 1; |
| } |
| flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; |
| if (audio_disable) |
| flags &= ~SDL_INIT_AUDIO; |
| #if !defined(__MINGW32__) && !defined(__APPLE__) |
| flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ |
| #endif |
| if (SDL_Init (flags)) { |
| fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); |
| exit(1); |
| } |
| |
| if (!display_disable) { |
| #if HAVE_SDL_VIDEO_SIZE |
| const SDL_VideoInfo *vi = SDL_GetVideoInfo(); |
| fs_screen_width = vi->current_w; |
| fs_screen_height = vi->current_h; |
| #endif |
| } |
| |
| SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); |
| SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); |
| SDL_EventState(SDL_USEREVENT, SDL_IGNORE); |
| |
| av_init_packet(&flush_pkt); |
| flush_pkt.data= "FLUSH"; |
| |
| cur_stream = stream_open(input_filename, file_iformat); |
| |
| event_loop(); |
| |
| /* never returns */ |
| |
| return 0; |
| } |