2 * FFplay : Simple Media Player based on the ffmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #define HAVE_AV_CONFIG_H
25 #include <SDL_thread.h>
28 #undef main /* We don't want SDL to override our main() */
41 DosGetInfoBlocks(&tib, &pib);
43 // Change flag from VIO to PM:
44 if (pib->pib_ultype==2) pib->pib_ultype = 3;
48 #if defined(__linux__)
58 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
59 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
60 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
62 /* SDL audio buffer size, in samples. Should be small to have precise
63 A/V sync as SDL does not have hardware buffer fullness info. */
64 #define SDL_AUDIO_BUFFER_SIZE 1024
66 /* no AV sync correction is done if below the AV sync threshold */
67 #define AV_SYNC_THRESHOLD 0.01
68 /* no AV correction is done if too big error */
69 #define AV_NOSYNC_THRESHOLD 10.0
71 /* maximum audio speed change to get correct sync */
72 #define SAMPLE_CORRECTION_PERCENT_MAX 10
74 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
75 #define AUDIO_DIFF_AVG_NB 20
77 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
78 #define SAMPLE_ARRAY_SIZE (2*65536)
80 typedef struct PacketQueue {
81 AVPacketList *first_pkt, *last_pkt;
89 #define VIDEO_PICTURE_QUEUE_SIZE 1
90 #define SUBPICTURE_QUEUE_SIZE 4
92 typedef struct VideoPicture {
93 double pts; ///<presentation time stamp for this picture
95 int width, height; /* source height & width */
99 typedef struct SubPicture {
100 double pts; /* presentation time stamp for this picture */
105 AV_SYNC_AUDIO_MASTER, /* default choice */
106 AV_SYNC_VIDEO_MASTER,
107 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
110 typedef struct VideoState {
111 SDL_Thread *parse_tid;
112 SDL_Thread *video_tid;
113 AVInputFormat *iformat;
122 int dtg_active_format;
127 double external_clock; /* external clock base */
128 int64_t external_clock_time;
131 double audio_diff_cum; /* used for AV difference average computation */
132 double audio_diff_avg_coef;
133 double audio_diff_threshold;
134 int audio_diff_avg_count;
137 int audio_hw_buf_size;
138 /* samples output by the codec. we reserve more space for avsync
140 uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
141 unsigned int audio_buf_size; /* in bytes */
142 int audio_buf_index; /* in bytes */
144 uint8_t *audio_pkt_data;
147 int show_audio; /* if true, display audio samples */
148 int16_t sample_array[SAMPLE_ARRAY_SIZE];
149 int sample_array_index;
152 SDL_Thread *subtitle_tid;
154 int subtitle_stream_changed;
155 AVStream *subtitle_st;
156 PacketQueue subtitleq;
157 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
158 int subpq_size, subpq_rindex, subpq_windex;
159 SDL_mutex *subpq_mutex;
160 SDL_cond *subpq_cond;
163 double frame_last_pts;
164 double frame_last_delay;
165 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
169 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
170 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
171 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
172 int pictq_size, pictq_rindex, pictq_windex;
173 SDL_mutex *pictq_mutex;
174 SDL_cond *pictq_cond;
176 SDL_mutex *video_decoder_mutex;
177 SDL_mutex *audio_decoder_mutex;
178 SDL_mutex *subtitle_decoder_mutex;
180 // QETimer *video_timer;
182 int width, height, xleft, ytop;
185 void show_help(void);
186 static int audio_write_get_buf_size(VideoState *is);
188 /* options specified by the user */
189 static AVInputFormat *file_iformat;
190 static AVImageFormat *image_format;
191 static const char *input_filename;
192 static int fs_screen_width;
193 static int fs_screen_height;
194 static int screen_width = 640;
195 static int screen_height = 480;
196 static int audio_disable;
197 static int video_disable;
198 static int display_disable;
199 static int show_status;
200 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
201 static int64_t start_time = AV_NOPTS_VALUE;
202 static int debug = 0;
203 static int debug_mv = 0;
205 static int thread_count = 1;
206 static int workaround_bugs = 1;
208 static int genpts = 0;
209 static int lowres = 0;
210 static int idct = FF_IDCT_AUTO;
211 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
212 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
213 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
214 static int error_resilience = FF_ER_CAREFUL;
215 static int error_concealment = 3;
217 /* current context */
218 static int is_full_screen;
219 static VideoState *cur_stream;
220 static int64_t audio_callback_time;
222 #define FF_ALLOC_EVENT (SDL_USEREVENT)
223 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
224 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
228 /* packet queue handling */
229 static void packet_queue_init(PacketQueue *q)
231 memset(q, 0, sizeof(PacketQueue));
232 q->mutex = SDL_CreateMutex();
233 q->cond = SDL_CreateCond();
236 static void packet_queue_flush(PacketQueue *q)
238 AVPacketList *pkt, *pkt1;
240 SDL_LockMutex(q->mutex);
241 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
243 av_free_packet(&pkt->pkt);
250 SDL_UnlockMutex(q->mutex);
253 static void packet_queue_end(PacketQueue *q)
255 packet_queue_flush(q);
256 SDL_DestroyMutex(q->mutex);
257 SDL_DestroyCond(q->cond);
260 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
264 /* duplicate the packet */
265 if (av_dup_packet(pkt) < 0)
268 pkt1 = av_malloc(sizeof(AVPacketList));
275 SDL_LockMutex(q->mutex);
281 q->last_pkt->next = pkt1;
284 q->size += pkt1->pkt.size;
285 /* XXX: should duplicate packet data in DV case */
286 SDL_CondSignal(q->cond);
288 SDL_UnlockMutex(q->mutex);
292 static void packet_queue_abort(PacketQueue *q)
294 SDL_LockMutex(q->mutex);
296 q->abort_request = 1;
298 SDL_CondSignal(q->cond);
300 SDL_UnlockMutex(q->mutex);
303 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
304 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
309 SDL_LockMutex(q->mutex);
312 if (q->abort_request) {
319 q->first_pkt = pkt1->next;
323 q->size -= pkt1->pkt.size;
332 SDL_CondWait(q->cond, q->mutex);
335 SDL_UnlockMutex(q->mutex);
339 static inline void fill_rectangle(SDL_Surface *screen,
340 int x, int y, int w, int h, int color)
347 SDL_FillRect(screen, &rect, color);
351 /* draw only the border of a rectangle */
352 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
356 /* fill the background */
360 w2 = s->width - (x + w);
366 h2 = s->height - (y + h);
369 fill_rectangle(screen,
373 fill_rectangle(screen,
374 s->xleft + s->width - w2, s->ytop,
377 fill_rectangle(screen,
378 s->xleft + w1, s->ytop,
379 s->width - w1 - w2, h1,
381 fill_rectangle(screen,
382 s->xleft + w1, s->ytop + s->height - h2,
383 s->width - w1 - w2, h2,
391 #define ONE_HALF (1 << (SCALEBITS - 1))
392 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
394 #define RGB_TO_Y_CCIR(r, g, b) \
395 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
396 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
398 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
399 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
400 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
402 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
403 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
404 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
406 #define ALPHA_BLEND(a, oldp, newp, s)\
407 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
409 #define RGBA_IN(r, g, b, a, s)\
411 unsigned int v = ((const uint32_t *)(s))[0];\
412 a = (v >> 24) & 0xff;\
413 r = (v >> 16) & 0xff;\
414 g = (v >> 8) & 0xff;\
418 #define YUVA_IN(y, u, v, a, s, pal)\
420 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)s];\
421 a = (val >> 24) & 0xff;\
422 y = (val >> 16) & 0xff;\
423 u = (val >> 8) & 0xff;\
427 #define YUVA_OUT(d, y, u, v, a)\
429 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
435 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect)
437 int wrap, wrap3, width2, skip2;
438 int y, u, v, a, u1, v1, a1, w, h;
439 uint8_t *lum, *cb, *cr;
443 lum = dst->data[0] + rect->y * dst->linesize[0];
444 cb = dst->data[1] + (rect->y >> 1) * dst->linesize[1];
445 cr = dst->data[2] + (rect->y >> 1) * dst->linesize[2];
447 width2 = (rect->w + 1) >> 1;
448 skip2 = rect->x >> 1;
449 wrap = dst->linesize[0];
450 wrap3 = rect->linesize;
452 pal = rect->rgba_palette; /* Now in YCrCb! */
460 YUVA_IN(y, u, v, a, p, pal);
461 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
462 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
463 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
469 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
470 YUVA_IN(y, u, v, a, p, pal);
474 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
476 YUVA_IN(y, u, v, a, p + BPP, pal);
480 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
481 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
482 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
489 YUVA_IN(y, u, v, a, p, pal);
490 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
491 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
492 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
494 p += wrap3 + (wrap3 - rect->w * BPP);
495 lum += wrap + (wrap - rect->w - rect->x);
496 cb += dst->linesize[1] - width2 - skip2;
497 cr += dst->linesize[2] - width2 - skip2;
499 for(h = rect->h - (rect->y & 1); h >= 2; h -= 2) {
505 YUVA_IN(y, u, v, a, p, pal);
509 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
512 YUVA_IN(y, u, v, a, p, pal);
516 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
517 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
518 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
524 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
525 YUVA_IN(y, u, v, a, p, pal);
529 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
531 YUVA_IN(y, u, v, a, p, pal);
535 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
539 YUVA_IN(y, u, v, a, p, pal);
543 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
545 YUVA_IN(y, u, v, a, p, pal);
549 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
551 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
552 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
556 p += -wrap3 + 2 * BPP;
560 YUVA_IN(y, u, v, a, p, pal);
564 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567 YUVA_IN(y, u, v, a, p, pal);
571 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
572 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
573 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
579 p += wrap3 + (wrap3 - rect->w * BPP);
580 lum += wrap + (wrap - rect->w - rect->x);
581 cb += dst->linesize[1] - width2 - skip2;
582 cr += dst->linesize[2] - width2 - skip2;
584 /* handle odd height */
591 YUVA_IN(y, u, v, a, p, pal);
592 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
593 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
594 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
600 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
601 YUVA_IN(y, u, v, a, p, pal);
605 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
607 YUVA_IN(y, u, v, a, p + BPP, pal);
611 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
612 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
613 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
620 YUVA_IN(y, u, v, a, p, pal);
621 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
623 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
628 static void free_subpicture(SubPicture *sp)
632 for (i = 0; i < sp->sub.num_rects; i++)
634 av_free(sp->sub.rects[i].bitmap);
635 av_free(sp->sub.rects[i].rgba_palette);
638 av_free(sp->sub.rects);
640 memset(&sp->sub, 0, sizeof(AVSubtitle));
643 static void video_image_display(VideoState *is)
649 int width, height, x, y;
653 vp = &is->pictq[is->pictq_rindex];
655 /* XXX: use variable in the frame */
656 if (is->video_st->codec->sample_aspect_ratio.num == 0)
659 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
660 * is->video_st->codec->width / is->video_st->codec->height;;
661 if (aspect_ratio <= 0.0)
662 aspect_ratio = (float)is->video_st->codec->width /
663 (float)is->video_st->codec->height;
664 /* if an active format is indicated, then it overrides the
667 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
668 is->dtg_active_format = is->video_st->codec->dtg_active_format;
669 printf("dtg_active_format=%d\n", is->dtg_active_format);
673 switch(is->video_st->codec->dtg_active_format) {
674 case FF_DTG_AFD_SAME:
679 aspect_ratio = 4.0 / 3.0;
681 case FF_DTG_AFD_16_9:
682 aspect_ratio = 16.0 / 9.0;
684 case FF_DTG_AFD_14_9:
685 aspect_ratio = 14.0 / 9.0;
687 case FF_DTG_AFD_4_3_SP_14_9:
688 aspect_ratio = 14.0 / 9.0;
690 case FF_DTG_AFD_16_9_SP_14_9:
691 aspect_ratio = 14.0 / 9.0;
693 case FF_DTG_AFD_SP_4_3:
694 aspect_ratio = 4.0 / 3.0;
701 if (is->subpq_size > 0)
703 sp = &is->subpq[is->subpq_rindex];
705 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
707 SDL_LockYUVOverlay (vp->bmp);
709 pict.data[0] = vp->bmp->pixels[0];
710 pict.data[1] = vp->bmp->pixels[2];
711 pict.data[2] = vp->bmp->pixels[1];
713 pict.linesize[0] = vp->bmp->pitches[0];
714 pict.linesize[1] = vp->bmp->pitches[2];
715 pict.linesize[2] = vp->bmp->pitches[1];
717 for (i = 0; i < sp->sub.num_rects; i++)
718 blend_subrect(&pict, &sp->sub.rects[i]);
720 SDL_UnlockYUVOverlay (vp->bmp);
726 /* XXX: we suppose the screen has a 1.0 pixel ratio */
728 width = ((int)rint(height * aspect_ratio)) & -3;
729 if (width > is->width) {
731 height = ((int)rint(width / aspect_ratio)) & -3;
733 x = (is->width - width) / 2;
734 y = (is->height - height) / 2;
735 if (!is->no_background) {
736 /* fill the background */
737 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
739 is->no_background = 0;
741 rect.x = is->xleft + x;
742 rect.y = is->xleft + y;
745 SDL_DisplayYUVOverlay(vp->bmp, &rect);
748 fill_rectangle(screen,
749 is->xleft, is->ytop, is->width, is->height,
750 QERGB(0x00, 0x00, 0x00));
755 static inline int compute_mod(int a, int b)
764 static void video_audio_display(VideoState *s)
766 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
767 int ch, channels, h, h2, bgcolor, fgcolor;
770 /* compute display index : center on currently output samples */
771 channels = s->audio_st->codec->channels;
772 nb_display_channels = channels;
775 delay = audio_write_get_buf_size(s);
778 /* to be more precise, we take into account the time spent since
779 the last buffer computation */
780 if (audio_callback_time) {
781 time_diff = av_gettime() - audio_callback_time;
782 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
785 delay -= s->width / 2;
786 if (delay < s->width)
788 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
789 s->last_i_start = i_start;
791 i_start = s->last_i_start;
794 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
795 fill_rectangle(screen,
796 s->xleft, s->ytop, s->width, s->height,
799 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
801 /* total height for one channel */
802 h = s->height / nb_display_channels;
803 /* graph height / 2 */
805 for(ch = 0;ch < nb_display_channels; ch++) {
807 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
808 for(x = 0; x < s->width; x++) {
809 y = (s->sample_array[i] * h2) >> 15;
816 fill_rectangle(screen,
817 s->xleft + x, ys, 1, y,
820 if (i >= SAMPLE_ARRAY_SIZE)
821 i -= SAMPLE_ARRAY_SIZE;
825 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
827 for(ch = 1;ch < nb_display_channels; ch++) {
828 y = s->ytop + ch * h;
829 fill_rectangle(screen,
830 s->xleft, y, s->width, 1,
833 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
836 /* display the current picture, if any */
837 static void video_display(VideoState *is)
839 if (is->audio_st && is->show_audio)
840 video_audio_display(is);
841 else if (is->video_st)
842 video_image_display(is);
845 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
848 event.type = FF_REFRESH_EVENT;
849 event.user.data1 = opaque;
850 SDL_PushEvent(&event);
851 return 0; /* 0 means stop timer */
854 /* schedule a video refresh in 'delay' ms */
855 static void schedule_refresh(VideoState *is, int delay)
857 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
860 /* get the current audio clock value */
861 static double get_audio_clock(VideoState *is)
864 int hw_buf_size, bytes_per_sec;
865 pts = is->audio_clock;
866 hw_buf_size = audio_write_get_buf_size(is);
869 bytes_per_sec = is->audio_st->codec->sample_rate *
870 2 * is->audio_st->codec->channels;
873 pts -= (double)hw_buf_size / bytes_per_sec;
877 /* get the current video clock value */
878 static double get_video_clock(VideoState *is)
884 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
886 return is->video_current_pts + delta;
889 /* get the current external clock value */
890 static double get_external_clock(VideoState *is)
894 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
897 /* get the current master clock value */
898 static double get_master_clock(VideoState *is)
902 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
904 val = get_video_clock(is);
906 val = get_audio_clock(is);
907 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
909 val = get_audio_clock(is);
911 val = get_video_clock(is);
913 val = get_external_clock(is);
918 /* seek in the stream */
919 static void stream_seek(VideoState *is, int64_t pos, int rel)
923 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
928 /* pause or resume the video */
929 static void stream_pause(VideoState *is)
931 is->paused = !is->paused;
933 is->video_current_pts = get_video_clock(is);
937 /* called to display each frame */
938 static void video_refresh_timer(void *opaque)
940 VideoState *is = opaque;
942 double actual_delay, delay, sync_threshold, ref_clock, diff;
944 SubPicture *sp, *sp2;
947 if (is->pictq_size == 0) {
948 /* if no picture, need to wait */
949 schedule_refresh(is, 1);
951 /* dequeue the picture */
952 vp = &is->pictq[is->pictq_rindex];
954 /* update current video pts */
955 is->video_current_pts = vp->pts;
956 is->video_current_pts_time = av_gettime();
958 /* compute nominal delay */
959 delay = vp->pts - is->frame_last_pts;
960 if (delay <= 0 || delay >= 1.0) {
961 /* if incorrect delay, use previous one */
962 delay = is->frame_last_delay;
964 is->frame_last_delay = delay;
965 is->frame_last_pts = vp->pts;
967 /* update delay to follow master synchronisation source */
968 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
969 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
970 /* if video is slave, we try to correct big delays by
971 duplicating or deleting a frame */
972 ref_clock = get_master_clock(is);
973 diff = vp->pts - ref_clock;
975 /* skip or repeat frame. We take into account the
976 delay to compute the threshold. I still don't know
977 if it is the best guess */
978 sync_threshold = AV_SYNC_THRESHOLD;
979 if (delay > sync_threshold)
980 sync_threshold = delay;
981 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
982 if (diff <= -sync_threshold)
984 else if (diff >= sync_threshold)
989 is->frame_timer += delay;
990 /* compute the REAL delay (we need to do that to avoid
992 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
993 if (actual_delay < 0.010) {
994 /* XXX: should skip picture */
995 actual_delay = 0.010;
997 /* launch timer for next picture */
998 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
1000 #if defined(DEBUG_SYNC)
1001 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1002 delay, actual_delay, vp->pts, -diff);
1005 if(is->subtitle_st) {
1006 if (is->subtitle_stream_changed) {
1007 SDL_LockMutex(is->subpq_mutex);
1009 while (is->subpq_size) {
1010 free_subpicture(&is->subpq[is->subpq_rindex]);
1012 /* update queue size and signal for next picture */
1013 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1014 is->subpq_rindex = 0;
1018 is->subtitle_stream_changed = 0;
1020 SDL_CondSignal(is->subpq_cond);
1021 SDL_UnlockMutex(is->subpq_mutex);
1023 if (is->subpq_size > 0) {
1024 sp = &is->subpq[is->subpq_rindex];
1026 if (is->subpq_size > 1)
1027 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1031 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1032 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1034 free_subpicture(sp);
1036 /* update queue size and signal for next picture */
1037 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1038 is->subpq_rindex = 0;
1040 SDL_LockMutex(is->subpq_mutex);
1042 SDL_CondSignal(is->subpq_cond);
1043 SDL_UnlockMutex(is->subpq_mutex);
1049 /* display picture */
1052 /* update queue size and signal for next picture */
1053 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1054 is->pictq_rindex = 0;
1056 SDL_LockMutex(is->pictq_mutex);
1058 SDL_CondSignal(is->pictq_cond);
1059 SDL_UnlockMutex(is->pictq_mutex);
1061 } else if (is->audio_st) {
1062 /* draw the next audio frame */
1064 schedule_refresh(is, 40);
1066 /* if only audio stream, then display the audio bars (better
1067 than nothing, just to test the implementation */
1069 /* display picture */
1072 schedule_refresh(is, 100);
1075 static int64_t last_time;
1077 int aqsize, vqsize, sqsize;
1080 cur_time = av_gettime();
1081 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1086 aqsize = is->audioq.size;
1088 vqsize = is->videoq.size;
1089 if (is->subtitle_st)
1090 sqsize = is->subtitleq.size;
1092 if (is->audio_st && is->video_st)
1093 av_diff = get_audio_clock(is) - get_video_clock(is);
1094 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1095 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1097 last_time = cur_time;
1102 /* allocate a picture (needs to do that in main thread to avoid
1103 potential locking problems */
1104 static void alloc_picture(void *opaque)
1106 VideoState *is = opaque;
1109 vp = &is->pictq[is->pictq_windex];
1112 SDL_FreeYUVOverlay(vp->bmp);
1115 /* XXX: use generic function */
1116 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1117 switch(is->video_st->codec->pix_fmt) {
1118 case PIX_FMT_YUV420P:
1119 case PIX_FMT_YUV422P:
1120 case PIX_FMT_YUV444P:
1121 case PIX_FMT_YUV422:
1122 case PIX_FMT_YUV410P:
1123 case PIX_FMT_YUV411P:
1131 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1132 is->video_st->codec->height,
1135 vp->width = is->video_st->codec->width;
1136 vp->height = is->video_st->codec->height;
1138 SDL_LockMutex(is->pictq_mutex);
1140 SDL_CondSignal(is->pictq_cond);
1141 SDL_UnlockMutex(is->pictq_mutex);
1146 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1148 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1154 /* wait until we have space to put a new picture */
1155 SDL_LockMutex(is->pictq_mutex);
1156 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1157 !is->videoq.abort_request) {
1158 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1160 SDL_UnlockMutex(is->pictq_mutex);
1162 if (is->videoq.abort_request)
1165 vp = &is->pictq[is->pictq_windex];
1167 /* alloc or resize hardware picture buffer */
1169 vp->width != is->video_st->codec->width ||
1170 vp->height != is->video_st->codec->height) {
1175 /* the allocation must be done in the main thread to avoid
1177 event.type = FF_ALLOC_EVENT;
1178 event.user.data1 = is;
1179 SDL_PushEvent(&event);
1181 /* wait until the picture is allocated */
1182 SDL_LockMutex(is->pictq_mutex);
1183 while (!vp->allocated && !is->videoq.abort_request) {
1184 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1186 SDL_UnlockMutex(is->pictq_mutex);
1188 if (is->videoq.abort_request)
1192 /* if the frame is not skipped, then display it */
1194 /* get a pointer on the bitmap */
1195 SDL_LockYUVOverlay (vp->bmp);
1197 dst_pix_fmt = PIX_FMT_YUV420P;
1198 pict.data[0] = vp->bmp->pixels[0];
1199 pict.data[1] = vp->bmp->pixels[2];
1200 pict.data[2] = vp->bmp->pixels[1];
1202 pict.linesize[0] = vp->bmp->pitches[0];
1203 pict.linesize[1] = vp->bmp->pitches[2];
1204 pict.linesize[2] = vp->bmp->pitches[1];
1205 img_convert(&pict, dst_pix_fmt,
1206 (AVPicture *)src_frame, is->video_st->codec->pix_fmt,
1207 is->video_st->codec->width, is->video_st->codec->height);
1208 /* update the bitmap content */
1209 SDL_UnlockYUVOverlay(vp->bmp);
1213 /* now we can update the picture count */
1214 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1215 is->pictq_windex = 0;
1216 SDL_LockMutex(is->pictq_mutex);
1218 SDL_UnlockMutex(is->pictq_mutex);
1224 * compute the exact PTS for the picture if it is omitted in the stream
1225 * @param pts1 the dts of the pkt / pts of the frame
1227 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1229 double frame_delay, pts;
1234 /* update video clock with pts, if present */
1235 is->video_clock = pts;
1237 pts = is->video_clock;
1239 /* update video clock for next frame */
1240 frame_delay = av_q2d(is->video_st->codec->time_base);
1241 /* for MPEG2, the frame can be repeated, so we update the
1242 clock accordingly */
1243 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1244 is->video_clock += frame_delay;
1246 #if defined(DEBUG_SYNC) && 0
1249 if (src_frame->pict_type == FF_B_TYPE)
1251 else if (src_frame->pict_type == FF_I_TYPE)
1255 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1259 return queue_picture(is, src_frame, pts);
1262 static int video_thread(void *arg)
1264 VideoState *is = arg;
1265 AVPacket pkt1, *pkt = &pkt1;
1266 int len1, got_picture;
1267 AVFrame *frame= avcodec_alloc_frame();
1271 while (is->paused && !is->videoq.abort_request) {
1274 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1276 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1277 this packet, if any */
1279 if (pkt->dts != AV_NOPTS_VALUE)
1280 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1282 SDL_LockMutex(is->video_decoder_mutex);
1283 len1 = avcodec_decode_video(is->video_st->codec,
1284 frame, &got_picture,
1285 pkt->data, pkt->size);
1286 SDL_UnlockMutex(is->video_decoder_mutex);
1290 if (output_picture2(is, frame, pts) < 0)
1293 av_free_packet(pkt);
1296 stream_pause(cur_stream);
1303 static int subtitle_thread(void *arg)
1305 VideoState *is = arg;
1307 AVPacket pkt1, *pkt = &pkt1;
1308 int len1, got_subtitle;
1311 int r, g, b, y, u, v, a;
1314 while (is->paused && !is->subtitleq.abort_request) {
1317 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1320 SDL_LockMutex(is->subpq_mutex);
1321 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1322 !is->subtitleq.abort_request) {
1323 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1325 SDL_UnlockMutex(is->subpq_mutex);
1327 if (is->subtitleq.abort_request)
1330 sp = &is->subpq[is->subpq_windex];
1332 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1333 this packet, if any */
1335 if (pkt->pts != AV_NOPTS_VALUE)
1336 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1338 SDL_LockMutex(is->subtitle_decoder_mutex);
1339 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1340 &sp->sub, &got_subtitle,
1341 pkt->data, pkt->size);
1342 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1345 if (got_subtitle && sp->sub.format == 0) {
1348 for (i = 0; i < sp->sub.num_rects; i++)
1350 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1352 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1353 y = RGB_TO_Y_CCIR(r, g, b);
1354 u = RGB_TO_U_CCIR(r, g, b, 0);
1355 v = RGB_TO_V_CCIR(r, g, b, 0);
1356 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1360 /* now we can update the picture count */
1361 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1362 is->subpq_windex = 0;
1363 SDL_LockMutex(is->subpq_mutex);
1365 SDL_UnlockMutex(is->subpq_mutex);
1367 av_free_packet(pkt);
1370 // stream_pause(cur_stream);
1376 /* copy samples for viewing in editor window */
1377 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1379 int size, len, channels;
1381 channels = is->audio_st->codec->channels;
1383 size = samples_size / sizeof(short);
1385 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1388 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1390 is->sample_array_index += len;
1391 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1392 is->sample_array_index = 0;
1397 /* return the new audio buffer size (samples can be added or deleted
1398 to get better sync if video or external master clock) */
1399 static int synchronize_audio(VideoState *is, short *samples,
1400 int samples_size1, double pts)
1402 int n, samples_size;
1405 n = 2 * is->audio_st->codec->channels;
1406 samples_size = samples_size1;
1408 /* if not master, then we try to remove or add samples to correct the clock */
1409 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1410 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1411 double diff, avg_diff;
1412 int wanted_size, min_size, max_size, nb_samples;
1414 ref_clock = get_master_clock(is);
1415 diff = get_audio_clock(is) - ref_clock;
1417 if (diff < AV_NOSYNC_THRESHOLD) {
1418 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1419 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1420 /* not enough measures to have a correct estimate */
1421 is->audio_diff_avg_count++;
1423 /* estimate the A-V difference */
1424 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1426 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1427 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1428 nb_samples = samples_size / n;
1430 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1431 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1432 if (wanted_size < min_size)
1433 wanted_size = min_size;
1434 else if (wanted_size > max_size)
1435 wanted_size = max_size;
1437 /* add or remove samples to correction the synchro */
1438 if (wanted_size < samples_size) {
1439 /* remove samples */
1440 samples_size = wanted_size;
1441 } else if (wanted_size > samples_size) {
1442 uint8_t *samples_end, *q;
1446 nb = (samples_size - wanted_size);
1447 samples_end = (uint8_t *)samples + samples_size - n;
1448 q = samples_end + n;
1450 memcpy(q, samples_end, n);
1454 samples_size = wanted_size;
1458 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1459 diff, avg_diff, samples_size - samples_size1,
1460 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1464 /* too big difference : may be initial PTS errors, so
1466 is->audio_diff_avg_count = 0;
1467 is->audio_diff_cum = 0;
1471 return samples_size;
1474 /* decode one audio frame and returns its uncompressed size */
1475 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1477 AVPacket *pkt = &is->audio_pkt;
1478 int n, len1, data_size;
1482 /* NOTE: the audio packet can contain several frames */
1483 while (is->audio_pkt_size > 0) {
1484 SDL_LockMutex(is->audio_decoder_mutex);
1485 len1 = avcodec_decode_audio(is->audio_st->codec,
1486 (int16_t *)audio_buf, &data_size,
1487 is->audio_pkt_data, is->audio_pkt_size);
1488 SDL_UnlockMutex(is->audio_decoder_mutex);
1490 /* if error, we skip the frame */
1491 is->audio_pkt_size = 0;
1495 is->audio_pkt_data += len1;
1496 is->audio_pkt_size -= len1;
1499 /* if no pts, then compute it */
1500 pts = is->audio_clock;
1502 n = 2 * is->audio_st->codec->channels;
1503 is->audio_clock += (double)data_size /
1504 (double)(n * is->audio_st->codec->sample_rate);
1505 #if defined(DEBUG_SYNC)
1507 static double last_clock;
1508 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1509 is->audio_clock - last_clock,
1510 is->audio_clock, pts);
1511 last_clock = is->audio_clock;
1517 /* free the current packet */
1519 av_free_packet(pkt);
1521 if (is->paused || is->audioq.abort_request) {
1525 /* read next packet */
1526 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1528 is->audio_pkt_data = pkt->data;
1529 is->audio_pkt_size = pkt->size;
1531 /* if update the audio clock with the pts */
1532 if (pkt->pts != AV_NOPTS_VALUE) {
1533 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1538 /* get the current audio output buffer size, in samples. With SDL, we
1539 cannot have a precise information */
1540 static int audio_write_get_buf_size(VideoState *is)
1542 return is->audio_hw_buf_size - is->audio_buf_index;
1546 /* prepare a new audio buffer */
1547 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1549 VideoState *is = opaque;
1550 int audio_size, len1;
1553 audio_callback_time = av_gettime();
1556 if (is->audio_buf_index >= is->audio_buf_size) {
1557 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1558 if (audio_size < 0) {
1559 /* if error, just output silence */
1560 is->audio_buf_size = 1024;
1561 memset(is->audio_buf, 0, is->audio_buf_size);
1564 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1565 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1567 is->audio_buf_size = audio_size;
1569 is->audio_buf_index = 0;
1571 len1 = is->audio_buf_size - is->audio_buf_index;
1574 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1577 is->audio_buf_index += len1;
1582 /* open a given stream. Return 0 if OK */
1583 static int stream_component_open(VideoState *is, int stream_index)
1585 AVFormatContext *ic = is->ic;
1586 AVCodecContext *enc;
1588 SDL_AudioSpec wanted_spec, spec;
1590 if (stream_index < 0 || stream_index >= ic->nb_streams)
1592 enc = ic->streams[stream_index]->codec;
1594 /* prepare audio output */
1595 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1596 wanted_spec.freq = enc->sample_rate;
1597 wanted_spec.format = AUDIO_S16SYS;
1598 /* hack for AC3. XXX: suppress that */
1599 if (enc->channels > 2)
1601 wanted_spec.channels = enc->channels;
1602 wanted_spec.silence = 0;
1603 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1604 wanted_spec.callback = sdl_audio_callback;
1605 wanted_spec.userdata = is;
1606 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1607 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1610 is->audio_hw_buf_size = spec.size;
1613 codec = avcodec_find_decoder(enc->codec_id);
1614 enc->debug_mv = debug_mv;
1617 av_log_set_level(AV_LOG_DEBUG);
1618 enc->workaround_bugs = workaround_bugs;
1619 enc->lowres = lowres;
1620 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1621 enc->idct_algo= idct;
1622 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1623 enc->skip_frame= skip_frame;
1624 enc->skip_idct= skip_idct;
1625 enc->skip_loop_filter= skip_loop_filter;
1626 enc->error_resilience= error_resilience;
1627 enc->error_concealment= error_concealment;
1629 avcodec_open(enc, codec) < 0)
1631 #if defined(HAVE_THREADS)
1633 avcodec_thread_init(enc, thread_count);
1635 enc->thread_count= thread_count;
1636 switch(enc->codec_type) {
1637 case CODEC_TYPE_AUDIO:
1638 is->audio_stream = stream_index;
1639 is->audio_st = ic->streams[stream_index];
1640 is->audio_buf_size = 0;
1641 is->audio_buf_index = 0;
1643 /* init averaging filter */
1644 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1645 is->audio_diff_avg_count = 0;
1646 /* since we do not have a precise anough audio fifo fullness,
1647 we correct audio sync only if larger than this threshold */
1648 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1650 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1651 packet_queue_init(&is->audioq);
1654 case CODEC_TYPE_VIDEO:
1655 is->video_stream = stream_index;
1656 is->video_st = ic->streams[stream_index];
1658 is->frame_last_delay = 40e-3;
1659 is->frame_timer = (double)av_gettime() / 1000000.0;
1660 is->video_current_pts_time = av_gettime();
1662 packet_queue_init(&is->videoq);
1663 is->video_tid = SDL_CreateThread(video_thread, is);
1665 case CODEC_TYPE_SUBTITLE:
1666 is->subtitle_stream = stream_index;
1667 is->subtitle_st = ic->streams[stream_index];
1668 packet_queue_init(&is->subtitleq);
1670 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1678 static void stream_component_close(VideoState *is, int stream_index)
1680 AVFormatContext *ic = is->ic;
1681 AVCodecContext *enc;
1683 if (stream_index < 0 || stream_index >= ic->nb_streams)
1685 enc = ic->streams[stream_index]->codec;
1687 switch(enc->codec_type) {
1688 case CODEC_TYPE_AUDIO:
1689 packet_queue_abort(&is->audioq);
1693 packet_queue_end(&is->audioq);
1695 case CODEC_TYPE_VIDEO:
1696 packet_queue_abort(&is->videoq);
1698 /* note: we also signal this mutex to make sure we deblock the
1699 video thread in all cases */
1700 SDL_LockMutex(is->pictq_mutex);
1701 SDL_CondSignal(is->pictq_cond);
1702 SDL_UnlockMutex(is->pictq_mutex);
1704 SDL_WaitThread(is->video_tid, NULL);
1706 packet_queue_end(&is->videoq);
1708 case CODEC_TYPE_SUBTITLE:
1709 packet_queue_abort(&is->subtitleq);
1711 /* note: we also signal this mutex to make sure we deblock the
1712 video thread in all cases */
1713 SDL_LockMutex(is->subpq_mutex);
1714 is->subtitle_stream_changed = 1;
1716 SDL_CondSignal(is->subpq_cond);
1717 SDL_UnlockMutex(is->subpq_mutex);
1719 SDL_WaitThread(is->subtitle_tid, NULL);
1721 packet_queue_end(&is->subtitleq);
1728 switch(enc->codec_type) {
1729 case CODEC_TYPE_AUDIO:
1730 is->audio_st = NULL;
1731 is->audio_stream = -1;
1733 case CODEC_TYPE_VIDEO:
1734 is->video_st = NULL;
1735 is->video_stream = -1;
1737 case CODEC_TYPE_SUBTITLE:
1738 is->subtitle_st = NULL;
1739 is->subtitle_stream = -1;
1746 void dump_stream_info(AVFormatContext *s)
1749 fprintf(stderr, "Track: %d\n", s->track);
1750 if (s->title[0] != '\0')
1751 fprintf(stderr, "Title: %s\n", s->title);
1752 if (s->author[0] != '\0')
1753 fprintf(stderr, "Author: %s\n", s->author);
1754 if (s->album[0] != '\0')
1755 fprintf(stderr, "Album: %s\n", s->album);
1757 fprintf(stderr, "Year: %d\n", s->year);
1758 if (s->genre[0] != '\0')
1759 fprintf(stderr, "Genre: %s\n", s->genre);
1762 /* since we have only one decoding thread, we can use a global
1763 variable instead of a thread local variable */
1764 static VideoState *global_video_state;
1766 static int decode_interrupt_cb(void)
1768 return (global_video_state && global_video_state->abort_request);
1771 /* this thread gets the stream from the disk or the network */
1772 static int decode_thread(void *arg)
1774 VideoState *is = arg;
1775 AVFormatContext *ic;
1776 int err, i, ret, video_index, audio_index, use_play;
1777 AVPacket pkt1, *pkt = &pkt1;
1778 AVFormatParameters params, *ap = ¶ms;
1782 is->video_stream = -1;
1783 is->audio_stream = -1;
1784 is->subtitle_stream = -1;
1786 global_video_state = is;
1787 url_set_interrupt_cb(decode_interrupt_cb);
1789 memset(ap, 0, sizeof(*ap));
1790 ap->image_format = image_format;
1791 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1794 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1796 print_error(is->filename, err);
1801 #ifdef CONFIG_NETWORK
1802 use_play = (ic->iformat == &rtsp_demux);
1808 ic->flags |= AVFMT_FLAG_GENPTS;
1811 err = av_find_stream_info(ic);
1813 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1817 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1820 /* if seeking requested, we execute it */
1821 if (start_time != AV_NOPTS_VALUE) {
1824 timestamp = start_time;
1825 /* add the stream start time */
1826 if (ic->start_time != AV_NOPTS_VALUE)
1827 timestamp += ic->start_time;
1828 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1830 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1831 is->filename, (double)timestamp / AV_TIME_BASE);
1835 /* now we can begin to play (RTSP stream only) */
1839 err = av_find_stream_info(ic);
1841 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1847 for(i = 0; i < ic->nb_streams; i++) {
1848 AVCodecContext *enc = ic->streams[i]->codec;
1849 switch(enc->codec_type) {
1850 case CODEC_TYPE_AUDIO:
1851 if (audio_index < 0 && !audio_disable)
1854 case CODEC_TYPE_VIDEO:
1855 if (video_index < 0 && !video_disable)
1863 dump_format(ic, 0, is->filename, 0);
1864 dump_stream_info(ic);
1867 /* open the streams */
1868 if (audio_index >= 0) {
1869 stream_component_open(is, audio_index);
1872 if (video_index >= 0) {
1873 stream_component_open(is, video_index);
1875 if (!display_disable)
1879 if (is->video_stream < 0 && is->audio_stream < 0) {
1880 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1886 if (is->abort_request)
1888 #ifdef CONFIG_NETWORK
1889 if (is->paused != is->last_paused) {
1890 is->last_paused = is->paused;
1896 if (is->paused && ic->iformat == &rtsp_demux) {
1897 /* wait 10 ms to avoid trying to get another packet */
1904 /* XXX: must lock decoder threads */
1905 SDL_LockMutex(is->video_decoder_mutex);
1906 SDL_LockMutex(is->audio_decoder_mutex);
1907 SDL_LockMutex(is->subtitle_decoder_mutex);
1908 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1910 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1912 if (is->audio_stream >= 0) {
1913 packet_queue_flush(&is->audioq);
1915 if (is->subtitle_stream >= 0) {
1916 packet_queue_flush(&is->subtitleq);
1918 if (is->video_stream >= 0) {
1919 packet_queue_flush(&is->videoq);
1920 avcodec_flush_buffers(ic->streams[video_index]->codec);
1923 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1924 SDL_UnlockMutex(is->audio_decoder_mutex);
1925 SDL_UnlockMutex(is->video_decoder_mutex);
1929 /* if the queue are full, no need to read more */
1930 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1931 is->videoq.size > MAX_VIDEOQ_SIZE ||
1932 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
1933 url_feof(&ic->pb)) {
1938 ret = av_read_frame(ic, pkt);
1940 if (url_ferror(&ic->pb) == 0) {
1941 SDL_Delay(100); /* wait for user event */
1946 if (pkt->stream_index == is->audio_stream) {
1947 packet_queue_put(&is->audioq, pkt);
1948 } else if (pkt->stream_index == is->video_stream) {
1949 packet_queue_put(&is->videoq, pkt);
1950 } else if (pkt->stream_index == is->subtitle_stream) {
1951 packet_queue_put(&is->subtitleq, pkt);
1953 av_free_packet(pkt);
1956 /* wait until the end */
1957 while (!is->abort_request) {
1963 /* disable interrupting */
1964 global_video_state = NULL;
1966 /* close each stream */
1967 if (is->audio_stream >= 0)
1968 stream_component_close(is, is->audio_stream);
1969 if (is->video_stream >= 0)
1970 stream_component_close(is, is->video_stream);
1971 if (is->subtitle_stream >= 0)
1972 stream_component_close(is, is->subtitle_stream);
1974 av_close_input_file(is->ic);
1975 is->ic = NULL; /* safety */
1977 url_set_interrupt_cb(NULL);
1982 event.type = FF_QUIT_EVENT;
1983 event.user.data1 = is;
1984 SDL_PushEvent(&event);
1989 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
1993 is = av_mallocz(sizeof(VideoState));
1996 pstrcpy(is->filename, sizeof(is->filename), filename);
1997 is->iformat = iformat;
1999 is->width = screen->w;
2000 is->height = screen->h;
2005 /* start video display */
2006 is->pictq_mutex = SDL_CreateMutex();
2007 is->pictq_cond = SDL_CreateCond();
2009 is->subpq_mutex = SDL_CreateMutex();
2010 is->subpq_cond = SDL_CreateCond();
2012 is->subtitle_decoder_mutex = SDL_CreateMutex();
2013 is->audio_decoder_mutex = SDL_CreateMutex();
2014 is->video_decoder_mutex = SDL_CreateMutex();
2016 /* add the refresh timer to draw the picture */
2017 schedule_refresh(is, 40);
2019 is->av_sync_type = av_sync_type;
2020 is->parse_tid = SDL_CreateThread(decode_thread, is);
2021 if (!is->parse_tid) {
2028 static void stream_close(VideoState *is)
2032 /* XXX: use a special url_shutdown call to abort parse cleanly */
2033 is->abort_request = 1;
2034 SDL_WaitThread(is->parse_tid, NULL);
2036 /* free all pictures */
2037 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2040 SDL_FreeYUVOverlay(vp->bmp);
2044 SDL_DestroyMutex(is->pictq_mutex);
2045 SDL_DestroyCond(is->pictq_cond);
2046 SDL_DestroyMutex(is->subpq_mutex);
2047 SDL_DestroyCond(is->subpq_cond);
2048 SDL_DestroyMutex(is->subtitle_decoder_mutex);
2049 SDL_DestroyMutex(is->audio_decoder_mutex);
2050 SDL_DestroyMutex(is->video_decoder_mutex);
2053 void stream_cycle_channel(VideoState *is, int codec_type)
2055 AVFormatContext *ic = is->ic;
2056 int start_index, stream_index;
2059 if (codec_type == CODEC_TYPE_VIDEO)
2060 start_index = is->video_stream;
2061 else if (codec_type == CODEC_TYPE_AUDIO)
2062 start_index = is->audio_stream;
2064 start_index = is->subtitle_stream;
2065 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2067 stream_index = start_index;
2069 if (++stream_index >= is->ic->nb_streams)
2071 if (codec_type == CODEC_TYPE_SUBTITLE)
2078 if (stream_index == start_index)
2080 st = ic->streams[stream_index];
2081 if (st->codec->codec_type == codec_type) {
2082 /* check that parameters are OK */
2083 switch(codec_type) {
2084 case CODEC_TYPE_AUDIO:
2085 if (st->codec->sample_rate != 0 &&
2086 st->codec->channels != 0)
2089 case CODEC_TYPE_VIDEO:
2090 case CODEC_TYPE_SUBTITLE:
2098 stream_component_close(is, start_index);
2099 stream_component_open(is, stream_index);
2103 void toggle_full_screen(void)
2106 is_full_screen = !is_full_screen;
2107 if (!fs_screen_width) {
2108 /* use default SDL method */
2109 SDL_WM_ToggleFullScreen(screen);
2111 /* use the recorded resolution */
2112 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2113 if (is_full_screen) {
2114 w = fs_screen_width;
2115 h = fs_screen_height;
2116 flags |= SDL_FULLSCREEN;
2120 flags |= SDL_RESIZABLE;
2122 screen = SDL_SetVideoMode(w, h, 0, flags);
2123 cur_stream->width = w;
2124 cur_stream->height = h;
2128 void toggle_pause(void)
2131 stream_pause(cur_stream);
2135 void step_to_next_frame(void)
2138 if (cur_stream->paused)
2139 cur_stream->paused=0;
2140 cur_stream->video_current_pts = get_video_clock(cur_stream);
2148 stream_close(cur_stream);
2157 void toggle_audio_display(void)
2160 cur_stream->show_audio = !cur_stream->show_audio;
2164 /* handle an event sent by the GUI */
2165 void event_loop(void)
2168 double incr, pos, frac;
2171 SDL_WaitEvent(&event);
2172 switch(event.type) {
2174 switch(event.key.keysym.sym) {
2180 toggle_full_screen();
2186 case SDLK_s: //S: Step to next frame
2187 step_to_next_frame();
2191 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2195 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2199 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2202 toggle_audio_display();
2217 pos = get_master_clock(cur_stream);
2219 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2226 case SDL_MOUSEBUTTONDOWN:
2229 int tns, thh, tmm, tss;
2230 tns = cur_stream->ic->duration/1000000LL;
2232 tmm = (tns%3600)/60;
2234 frac = (double)event.button.x/(double)cur_stream->width;
2239 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2240 hh, mm, ss, thh, tmm, tss);
2241 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2244 case SDL_VIDEORESIZE:
2246 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2247 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2248 cur_stream->width = event.resize.w;
2249 cur_stream->height = event.resize.h;
2256 case FF_ALLOC_EVENT:
2257 alloc_picture(event.user.data1);
2259 case FF_REFRESH_EVENT:
2260 video_refresh_timer(event.user.data1);
2268 void opt_width(const char *arg)
2270 screen_width = atoi(arg);
2273 void opt_height(const char *arg)
2275 screen_height = atoi(arg);
2278 static void opt_format(const char *arg)
2280 file_iformat = av_find_input_format(arg);
2281 if (!file_iformat) {
2282 fprintf(stderr, "Unknown input format: %s\n", arg);
2287 static void opt_image_format(const char *arg)
2291 for(f = first_image_format; f != NULL; f = f->next) {
2292 if (!strcmp(arg, f->name))
2296 fprintf(stderr, "Unknown image format: '%s'\n", arg);
2302 #ifdef CONFIG_NETWORK
2303 void opt_rtp_tcp(void)
2305 /* only tcp protocol */
2306 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2310 void opt_sync(const char *arg)
2312 if (!strcmp(arg, "audio"))
2313 av_sync_type = AV_SYNC_AUDIO_MASTER;
2314 else if (!strcmp(arg, "video"))
2315 av_sync_type = AV_SYNC_VIDEO_MASTER;
2316 else if (!strcmp(arg, "ext"))
2317 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2322 void opt_seek(const char *arg)
2324 start_time = parse_date(arg, 1);
2327 static void opt_debug(const char *arg)
2332 static void opt_vismv(const char *arg)
2334 debug_mv = atoi(arg);
2337 static void opt_thread_count(const char *arg)
2339 thread_count= atoi(arg);
2340 #if !defined(HAVE_THREADS)
2341 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2345 const OptionDef options[] = {
2346 { "h", 0, {(void*)show_help}, "show help" },
2347 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2348 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2350 /* disabled as SDL/X11 does not support it correctly on application launch */
2351 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2353 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2354 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2355 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2356 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2357 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2358 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
2359 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2360 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2361 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2362 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2363 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2364 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2365 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2366 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2367 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2368 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2369 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2370 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2371 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2372 #ifdef CONFIG_NETWORK
2373 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2375 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2376 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2380 void show_help(void)
2382 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
2383 "usage: ffplay [options] input_file\n"
2384 "Simple media player\n");
2386 show_help_options(options, "Main options:\n",
2388 show_help_options(options, "\nAdvanced options:\n",
2389 OPT_EXPERT, OPT_EXPERT);
2390 printf("\nWhile playing:\n"
2392 "f toggle full screen\n"
2394 "a cycle audio channel\n"
2395 "v cycle video channel\n"
2396 "t cycle subtitle channel\n"
2397 "w show audio waves\n"
2398 "left/right seek backward/forward 10 seconds\n"
2399 "down/up seek backward/forward 1 minute\n"
2400 "mouse click seek to percentage in file corresponding to fraction of width\n"
2405 void parse_arg_file(const char *filename)
2407 if (!strcmp(filename, "-"))
2409 input_filename = filename;
2412 /* Called from the main */
2413 int main(int argc, char **argv)
2417 /* register all codecs, demux and protocols */
2421 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2423 // Make stdout and stderr unbuffered
2424 setbuf( stdout, NULL );
2425 setbuf( stderr, NULL );
2428 parse_options(argc, argv, options);
2430 if (!input_filename)
2433 if (display_disable) {
2436 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2437 #ifndef CONFIG_WIN32
2438 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 */
2440 if (SDL_Init (flags)) {
2441 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2445 if (!display_disable) {
2447 /* save the screen resolution... SDL should allow full screen
2448 by resizing the window */
2451 dpy = XOpenDisplay(NULL);
2453 fs_screen_width = DisplayWidth(dpy, DefaultScreen(dpy));
2454 fs_screen_height = DisplayHeight(dpy, DefaultScreen(dpy));
2459 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2460 if (is_full_screen && fs_screen_width) {
2461 w = fs_screen_width;
2462 h = fs_screen_height;
2463 flags |= SDL_FULLSCREEN;
2467 flags |= SDL_RESIZABLE;
2469 screen = SDL_SetVideoMode(w, h, 0, flags);
2471 fprintf(stderr, "SDL: could not set video mode - exiting\n");
2474 SDL_WM_SetCaption("FFplay", "FFplay");
2477 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2478 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2479 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2480 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2482 cur_stream = stream_open(input_filename, file_iformat);