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
27 #include <SDL_thread.h>
30 #undef main /* We don't want SDL to override our main() */
43 DosGetInfoBlocks(&tib, &pib);
45 // Change flag from VIO to PM:
46 if (pib->pib_ultype==2) pib->pib_ultype = 3;
52 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
53 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
54 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
56 /* SDL audio buffer size, in samples. Should be small to have precise
57 A/V sync as SDL does not have hardware buffer fullness info. */
58 #define SDL_AUDIO_BUFFER_SIZE 1024
60 /* no AV sync correction is done if below the AV sync threshold */
61 #define AV_SYNC_THRESHOLD 0.01
62 /* no AV correction is done if too big error */
63 #define AV_NOSYNC_THRESHOLD 10.0
65 /* maximum audio speed change to get correct sync */
66 #define SAMPLE_CORRECTION_PERCENT_MAX 10
68 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
69 #define AUDIO_DIFF_AVG_NB 20
71 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
72 #define SAMPLE_ARRAY_SIZE (2*65536)
74 static int sws_flags = SWS_BICUBIC;
76 typedef struct PacketQueue {
77 AVPacketList *first_pkt, *last_pkt;
85 #define VIDEO_PICTURE_QUEUE_SIZE 1
86 #define SUBPICTURE_QUEUE_SIZE 4
88 typedef struct VideoPicture {
89 double pts; ///<presentation time stamp for this picture
91 int width, height; /* source height & width */
95 typedef struct SubPicture {
96 double pts; /* presentation time stamp for this picture */
101 AV_SYNC_AUDIO_MASTER, /* default choice */
102 AV_SYNC_VIDEO_MASTER,
103 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
106 typedef struct VideoState {
107 SDL_Thread *parse_tid;
108 SDL_Thread *video_tid;
109 AVInputFormat *iformat;
118 int dtg_active_format;
123 double external_clock; /* external clock base */
124 int64_t external_clock_time;
127 double audio_diff_cum; /* used for AV difference average computation */
128 double audio_diff_avg_coef;
129 double audio_diff_threshold;
130 int audio_diff_avg_count;
133 int audio_hw_buf_size;
134 /* samples output by the codec. we reserve more space for avsync
136 uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
137 unsigned int audio_buf_size; /* in bytes */
138 int audio_buf_index; /* in bytes */
140 uint8_t *audio_pkt_data;
143 int show_audio; /* if true, display audio samples */
144 int16_t sample_array[SAMPLE_ARRAY_SIZE];
145 int sample_array_index;
148 SDL_Thread *subtitle_tid;
150 int subtitle_stream_changed;
151 AVStream *subtitle_st;
152 PacketQueue subtitleq;
153 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
154 int subpq_size, subpq_rindex, subpq_windex;
155 SDL_mutex *subpq_mutex;
156 SDL_cond *subpq_cond;
159 double frame_last_pts;
160 double frame_last_delay;
161 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
165 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
166 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
167 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
168 int pictq_size, pictq_rindex, pictq_windex;
169 SDL_mutex *pictq_mutex;
170 SDL_cond *pictq_cond;
172 SDL_mutex *video_decoder_mutex;
173 SDL_mutex *audio_decoder_mutex;
174 SDL_mutex *subtitle_decoder_mutex;
176 // QETimer *video_timer;
178 int width, height, xleft, ytop;
181 void show_help(void);
182 static int audio_write_get_buf_size(VideoState *is);
184 /* options specified by the user */
185 static AVInputFormat *file_iformat;
186 static AVImageFormat *image_format;
187 static const char *input_filename;
188 static int fs_screen_width;
189 static int fs_screen_height;
190 static int screen_width = 640;
191 static int screen_height = 480;
192 static int audio_disable;
193 static int video_disable;
194 static int display_disable;
195 static int show_status;
196 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
197 static int64_t start_time = AV_NOPTS_VALUE;
198 static int debug = 0;
199 static int debug_mv = 0;
201 static int thread_count = 1;
202 static int workaround_bugs = 1;
204 static int genpts = 0;
205 static int lowres = 0;
206 static int idct = FF_IDCT_AUTO;
207 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
208 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
209 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
210 static int error_resilience = FF_ER_CAREFUL;
211 static int error_concealment = 3;
213 /* current context */
214 static int is_full_screen;
215 static VideoState *cur_stream;
216 static int64_t audio_callback_time;
218 #define FF_ALLOC_EVENT (SDL_USEREVENT)
219 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
220 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
224 /* packet queue handling */
225 static void packet_queue_init(PacketQueue *q)
227 memset(q, 0, sizeof(PacketQueue));
228 q->mutex = SDL_CreateMutex();
229 q->cond = SDL_CreateCond();
232 static void packet_queue_flush(PacketQueue *q)
234 AVPacketList *pkt, *pkt1;
236 SDL_LockMutex(q->mutex);
237 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
239 av_free_packet(&pkt->pkt);
246 SDL_UnlockMutex(q->mutex);
249 static void packet_queue_end(PacketQueue *q)
251 packet_queue_flush(q);
252 SDL_DestroyMutex(q->mutex);
253 SDL_DestroyCond(q->cond);
256 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
260 /* duplicate the packet */
261 if (av_dup_packet(pkt) < 0)
264 pkt1 = av_malloc(sizeof(AVPacketList));
271 SDL_LockMutex(q->mutex);
277 q->last_pkt->next = pkt1;
280 q->size += pkt1->pkt.size;
281 /* XXX: should duplicate packet data in DV case */
282 SDL_CondSignal(q->cond);
284 SDL_UnlockMutex(q->mutex);
288 static void packet_queue_abort(PacketQueue *q)
290 SDL_LockMutex(q->mutex);
292 q->abort_request = 1;
294 SDL_CondSignal(q->cond);
296 SDL_UnlockMutex(q->mutex);
299 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
300 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
305 SDL_LockMutex(q->mutex);
308 if (q->abort_request) {
315 q->first_pkt = pkt1->next;
319 q->size -= pkt1->pkt.size;
328 SDL_CondWait(q->cond, q->mutex);
331 SDL_UnlockMutex(q->mutex);
335 static inline void fill_rectangle(SDL_Surface *screen,
336 int x, int y, int w, int h, int color)
343 SDL_FillRect(screen, &rect, color);
347 /* draw only the border of a rectangle */
348 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
352 /* fill the background */
356 w2 = s->width - (x + w);
362 h2 = s->height - (y + h);
365 fill_rectangle(screen,
369 fill_rectangle(screen,
370 s->xleft + s->width - w2, s->ytop,
373 fill_rectangle(screen,
374 s->xleft + w1, s->ytop,
375 s->width - w1 - w2, h1,
377 fill_rectangle(screen,
378 s->xleft + w1, s->ytop + s->height - h2,
379 s->width - w1 - w2, h2,
387 #define ONE_HALF (1 << (SCALEBITS - 1))
388 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
390 #define RGB_TO_Y_CCIR(r, g, b) \
391 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
392 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
394 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
395 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
396 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
398 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
399 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
400 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
402 #define ALPHA_BLEND(a, oldp, newp, s)\
403 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
405 #define RGBA_IN(r, g, b, a, s)\
407 unsigned int v = ((const uint32_t *)(s))[0];\
408 a = (v >> 24) & 0xff;\
409 r = (v >> 16) & 0xff;\
410 g = (v >> 8) & 0xff;\
414 #define YUVA_IN(y, u, v, a, s, pal)\
416 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)s];\
417 a = (val >> 24) & 0xff;\
418 y = (val >> 16) & 0xff;\
419 u = (val >> 8) & 0xff;\
423 #define YUVA_OUT(d, y, u, v, a)\
425 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
431 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect)
433 int wrap, wrap3, width2, skip2;
434 int y, u, v, a, u1, v1, a1, w, h;
435 uint8_t *lum, *cb, *cr;
439 lum = dst->data[0] + rect->y * dst->linesize[0];
440 cb = dst->data[1] + (rect->y >> 1) * dst->linesize[1];
441 cr = dst->data[2] + (rect->y >> 1) * dst->linesize[2];
443 width2 = (rect->w + 1) >> 1;
444 skip2 = rect->x >> 1;
445 wrap = dst->linesize[0];
446 wrap3 = rect->linesize;
448 pal = rect->rgba_palette; /* Now in YCrCb! */
456 YUVA_IN(y, u, v, a, p, pal);
457 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
458 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
459 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
465 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
466 YUVA_IN(y, u, v, a, p, pal);
470 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
472 YUVA_IN(y, u, v, a, p + BPP, pal);
476 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
477 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
478 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
485 YUVA_IN(y, u, v, a, p, pal);
486 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
487 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
488 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
490 p += wrap3 + (wrap3 - rect->w * BPP);
491 lum += wrap + (wrap - rect->w - rect->x);
492 cb += dst->linesize[1] - width2 - skip2;
493 cr += dst->linesize[2] - width2 - skip2;
495 for(h = rect->h - (rect->y & 1); h >= 2; h -= 2) {
501 YUVA_IN(y, u, v, a, p, pal);
505 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
508 YUVA_IN(y, u, v, a, p, pal);
512 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
513 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
514 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
520 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
521 YUVA_IN(y, u, v, a, p, pal);
525 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
527 YUVA_IN(y, u, v, a, p, pal);
531 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
535 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541 YUVA_IN(y, u, v, a, p, pal);
545 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
547 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
548 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
552 p += -wrap3 + 2 * BPP;
556 YUVA_IN(y, u, v, a, p, pal);
560 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
563 YUVA_IN(y, u, v, a, p, pal);
567 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
569 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
575 p += wrap3 + (wrap3 - rect->w * BPP);
576 lum += wrap + (wrap - rect->w - rect->x);
577 cb += dst->linesize[1] - width2 - skip2;
578 cr += dst->linesize[2] - width2 - skip2;
580 /* handle odd height */
587 YUVA_IN(y, u, v, a, p, pal);
588 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
589 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
590 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
596 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
597 YUVA_IN(y, u, v, a, p, pal);
601 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
603 YUVA_IN(y, u, v, a, p + BPP, pal);
607 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
608 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
609 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
616 YUVA_IN(y, u, v, a, p, pal);
617 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
619 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
624 static void free_subpicture(SubPicture *sp)
628 for (i = 0; i < sp->sub.num_rects; i++)
630 av_free(sp->sub.rects[i].bitmap);
631 av_free(sp->sub.rects[i].rgba_palette);
634 av_free(sp->sub.rects);
636 memset(&sp->sub, 0, sizeof(AVSubtitle));
639 static void video_image_display(VideoState *is)
645 int width, height, x, y;
649 vp = &is->pictq[is->pictq_rindex];
651 /* XXX: use variable in the frame */
652 if (is->video_st->codec->sample_aspect_ratio.num == 0)
655 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
656 * is->video_st->codec->width / is->video_st->codec->height;;
657 if (aspect_ratio <= 0.0)
658 aspect_ratio = (float)is->video_st->codec->width /
659 (float)is->video_st->codec->height;
660 /* if an active format is indicated, then it overrides the
663 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
664 is->dtg_active_format = is->video_st->codec->dtg_active_format;
665 printf("dtg_active_format=%d\n", is->dtg_active_format);
669 switch(is->video_st->codec->dtg_active_format) {
670 case FF_DTG_AFD_SAME:
675 aspect_ratio = 4.0 / 3.0;
677 case FF_DTG_AFD_16_9:
678 aspect_ratio = 16.0 / 9.0;
680 case FF_DTG_AFD_14_9:
681 aspect_ratio = 14.0 / 9.0;
683 case FF_DTG_AFD_4_3_SP_14_9:
684 aspect_ratio = 14.0 / 9.0;
686 case FF_DTG_AFD_16_9_SP_14_9:
687 aspect_ratio = 14.0 / 9.0;
689 case FF_DTG_AFD_SP_4_3:
690 aspect_ratio = 4.0 / 3.0;
697 if (is->subpq_size > 0)
699 sp = &is->subpq[is->subpq_rindex];
701 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
703 SDL_LockYUVOverlay (vp->bmp);
705 pict.data[0] = vp->bmp->pixels[0];
706 pict.data[1] = vp->bmp->pixels[2];
707 pict.data[2] = vp->bmp->pixels[1];
709 pict.linesize[0] = vp->bmp->pitches[0];
710 pict.linesize[1] = vp->bmp->pitches[2];
711 pict.linesize[2] = vp->bmp->pitches[1];
713 for (i = 0; i < sp->sub.num_rects; i++)
714 blend_subrect(&pict, &sp->sub.rects[i]);
716 SDL_UnlockYUVOverlay (vp->bmp);
722 /* XXX: we suppose the screen has a 1.0 pixel ratio */
724 width = ((int)rint(height * aspect_ratio)) & -3;
725 if (width > is->width) {
727 height = ((int)rint(width / aspect_ratio)) & -3;
729 x = (is->width - width) / 2;
730 y = (is->height - height) / 2;
731 if (!is->no_background) {
732 /* fill the background */
733 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
735 is->no_background = 0;
737 rect.x = is->xleft + x;
738 rect.y = is->xleft + y;
741 SDL_DisplayYUVOverlay(vp->bmp, &rect);
744 fill_rectangle(screen,
745 is->xleft, is->ytop, is->width, is->height,
746 QERGB(0x00, 0x00, 0x00));
751 static inline int compute_mod(int a, int b)
760 static void video_audio_display(VideoState *s)
762 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
763 int ch, channels, h, h2, bgcolor, fgcolor;
766 /* compute display index : center on currently output samples */
767 channels = s->audio_st->codec->channels;
768 nb_display_channels = channels;
771 delay = audio_write_get_buf_size(s);
774 /* to be more precise, we take into account the time spent since
775 the last buffer computation */
776 if (audio_callback_time) {
777 time_diff = av_gettime() - audio_callback_time;
778 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
781 delay -= s->width / 2;
782 if (delay < s->width)
784 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
785 s->last_i_start = i_start;
787 i_start = s->last_i_start;
790 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
791 fill_rectangle(screen,
792 s->xleft, s->ytop, s->width, s->height,
795 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
797 /* total height for one channel */
798 h = s->height / nb_display_channels;
799 /* graph height / 2 */
801 for(ch = 0;ch < nb_display_channels; ch++) {
803 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
804 for(x = 0; x < s->width; x++) {
805 y = (s->sample_array[i] * h2) >> 15;
812 fill_rectangle(screen,
813 s->xleft + x, ys, 1, y,
816 if (i >= SAMPLE_ARRAY_SIZE)
817 i -= SAMPLE_ARRAY_SIZE;
821 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
823 for(ch = 1;ch < nb_display_channels; ch++) {
824 y = s->ytop + ch * h;
825 fill_rectangle(screen,
826 s->xleft, y, s->width, 1,
829 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
832 /* display the current picture, if any */
833 static void video_display(VideoState *is)
835 if (is->audio_st && is->show_audio)
836 video_audio_display(is);
837 else if (is->video_st)
838 video_image_display(is);
841 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
844 event.type = FF_REFRESH_EVENT;
845 event.user.data1 = opaque;
846 SDL_PushEvent(&event);
847 return 0; /* 0 means stop timer */
850 /* schedule a video refresh in 'delay' ms */
851 static void schedule_refresh(VideoState *is, int delay)
853 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
856 /* get the current audio clock value */
857 static double get_audio_clock(VideoState *is)
860 int hw_buf_size, bytes_per_sec;
861 pts = is->audio_clock;
862 hw_buf_size = audio_write_get_buf_size(is);
865 bytes_per_sec = is->audio_st->codec->sample_rate *
866 2 * is->audio_st->codec->channels;
869 pts -= (double)hw_buf_size / bytes_per_sec;
873 /* get the current video clock value */
874 static double get_video_clock(VideoState *is)
880 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
882 return is->video_current_pts + delta;
885 /* get the current external clock value */
886 static double get_external_clock(VideoState *is)
890 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
893 /* get the current master clock value */
894 static double get_master_clock(VideoState *is)
898 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
900 val = get_video_clock(is);
902 val = get_audio_clock(is);
903 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
905 val = get_audio_clock(is);
907 val = get_video_clock(is);
909 val = get_external_clock(is);
914 /* seek in the stream */
915 static void stream_seek(VideoState *is, int64_t pos, int rel)
919 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
924 /* pause or resume the video */
925 static void stream_pause(VideoState *is)
927 is->paused = !is->paused;
929 is->video_current_pts = get_video_clock(is);
933 /* called to display each frame */
934 static void video_refresh_timer(void *opaque)
936 VideoState *is = opaque;
938 double actual_delay, delay, sync_threshold, ref_clock, diff;
940 SubPicture *sp, *sp2;
943 if (is->pictq_size == 0) {
944 /* if no picture, need to wait */
945 schedule_refresh(is, 1);
947 /* dequeue the picture */
948 vp = &is->pictq[is->pictq_rindex];
950 /* update current video pts */
951 is->video_current_pts = vp->pts;
952 is->video_current_pts_time = av_gettime();
954 /* compute nominal delay */
955 delay = vp->pts - is->frame_last_pts;
956 if (delay <= 0 || delay >= 1.0) {
957 /* if incorrect delay, use previous one */
958 delay = is->frame_last_delay;
960 is->frame_last_delay = delay;
961 is->frame_last_pts = vp->pts;
963 /* update delay to follow master synchronisation source */
964 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
965 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
966 /* if video is slave, we try to correct big delays by
967 duplicating or deleting a frame */
968 ref_clock = get_master_clock(is);
969 diff = vp->pts - ref_clock;
971 /* skip or repeat frame. We take into account the
972 delay to compute the threshold. I still don't know
973 if it is the best guess */
974 sync_threshold = AV_SYNC_THRESHOLD;
975 if (delay > sync_threshold)
976 sync_threshold = delay;
977 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
978 if (diff <= -sync_threshold)
980 else if (diff >= sync_threshold)
985 is->frame_timer += delay;
986 /* compute the REAL delay (we need to do that to avoid
988 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
989 if (actual_delay < 0.010) {
990 /* XXX: should skip picture */
991 actual_delay = 0.010;
993 /* launch timer for next picture */
994 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
996 #if defined(DEBUG_SYNC)
997 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
998 delay, actual_delay, vp->pts, -diff);
1001 if(is->subtitle_st) {
1002 if (is->subtitle_stream_changed) {
1003 SDL_LockMutex(is->subpq_mutex);
1005 while (is->subpq_size) {
1006 free_subpicture(&is->subpq[is->subpq_rindex]);
1008 /* update queue size and signal for next picture */
1009 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1010 is->subpq_rindex = 0;
1014 is->subtitle_stream_changed = 0;
1016 SDL_CondSignal(is->subpq_cond);
1017 SDL_UnlockMutex(is->subpq_mutex);
1019 if (is->subpq_size > 0) {
1020 sp = &is->subpq[is->subpq_rindex];
1022 if (is->subpq_size > 1)
1023 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1027 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1028 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1030 free_subpicture(sp);
1032 /* update queue size and signal for next picture */
1033 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1034 is->subpq_rindex = 0;
1036 SDL_LockMutex(is->subpq_mutex);
1038 SDL_CondSignal(is->subpq_cond);
1039 SDL_UnlockMutex(is->subpq_mutex);
1045 /* display picture */
1048 /* update queue size and signal for next picture */
1049 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1050 is->pictq_rindex = 0;
1052 SDL_LockMutex(is->pictq_mutex);
1054 SDL_CondSignal(is->pictq_cond);
1055 SDL_UnlockMutex(is->pictq_mutex);
1057 } else if (is->audio_st) {
1058 /* draw the next audio frame */
1060 schedule_refresh(is, 40);
1062 /* if only audio stream, then display the audio bars (better
1063 than nothing, just to test the implementation */
1065 /* display picture */
1068 schedule_refresh(is, 100);
1071 static int64_t last_time;
1073 int aqsize, vqsize, sqsize;
1076 cur_time = av_gettime();
1077 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1082 aqsize = is->audioq.size;
1084 vqsize = is->videoq.size;
1085 if (is->subtitle_st)
1086 sqsize = is->subtitleq.size;
1088 if (is->audio_st && is->video_st)
1089 av_diff = get_audio_clock(is) - get_video_clock(is);
1090 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1091 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1093 last_time = cur_time;
1098 /* allocate a picture (needs to do that in main thread to avoid
1099 potential locking problems */
1100 static void alloc_picture(void *opaque)
1102 VideoState *is = opaque;
1105 vp = &is->pictq[is->pictq_windex];
1108 SDL_FreeYUVOverlay(vp->bmp);
1111 /* XXX: use generic function */
1112 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1113 switch(is->video_st->codec->pix_fmt) {
1114 case PIX_FMT_YUV420P:
1115 case PIX_FMT_YUV422P:
1116 case PIX_FMT_YUV444P:
1117 case PIX_FMT_YUV422:
1118 case PIX_FMT_YUV410P:
1119 case PIX_FMT_YUV411P:
1127 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1128 is->video_st->codec->height,
1131 vp->width = is->video_st->codec->width;
1132 vp->height = is->video_st->codec->height;
1134 SDL_LockMutex(is->pictq_mutex);
1136 SDL_CondSignal(is->pictq_cond);
1137 SDL_UnlockMutex(is->pictq_mutex);
1142 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1144 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1149 static struct SwsContext *img_convert_ctx;
1151 /* wait until we have space to put a new picture */
1152 SDL_LockMutex(is->pictq_mutex);
1153 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1154 !is->videoq.abort_request) {
1155 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1157 SDL_UnlockMutex(is->pictq_mutex);
1159 if (is->videoq.abort_request)
1162 vp = &is->pictq[is->pictq_windex];
1164 /* alloc or resize hardware picture buffer */
1166 vp->width != is->video_st->codec->width ||
1167 vp->height != is->video_st->codec->height) {
1172 /* the allocation must be done in the main thread to avoid
1174 event.type = FF_ALLOC_EVENT;
1175 event.user.data1 = is;
1176 SDL_PushEvent(&event);
1178 /* wait until the picture is allocated */
1179 SDL_LockMutex(is->pictq_mutex);
1180 while (!vp->allocated && !is->videoq.abort_request) {
1181 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1183 SDL_UnlockMutex(is->pictq_mutex);
1185 if (is->videoq.abort_request)
1189 /* if the frame is not skipped, then display it */
1191 /* get a pointer on the bitmap */
1192 SDL_LockYUVOverlay (vp->bmp);
1194 dst_pix_fmt = PIX_FMT_YUV420P;
1195 pict.data[0] = vp->bmp->pixels[0];
1196 pict.data[1] = vp->bmp->pixels[2];
1197 pict.data[2] = vp->bmp->pixels[1];
1199 pict.linesize[0] = vp->bmp->pitches[0];
1200 pict.linesize[1] = vp->bmp->pitches[2];
1201 pict.linesize[2] = vp->bmp->pitches[1];
1202 if (img_convert_ctx == NULL) {
1203 img_convert_ctx = sws_getContext(is->video_st->codec->width,
1204 is->video_st->codec->height, is->video_st->codec->pix_fmt,
1205 is->video_st->codec->width, is->video_st->codec->height,
1206 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1207 if (img_convert_ctx == NULL) {
1208 fprintf(stderr, "Cannot initialize the conversion context\n");
1212 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1213 0, is->video_st->codec->height, pict.data, pict.linesize);
1214 /* update the bitmap content */
1215 SDL_UnlockYUVOverlay(vp->bmp);
1219 /* now we can update the picture count */
1220 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1221 is->pictq_windex = 0;
1222 SDL_LockMutex(is->pictq_mutex);
1224 SDL_UnlockMutex(is->pictq_mutex);
1230 * compute the exact PTS for the picture if it is omitted in the stream
1231 * @param pts1 the dts of the pkt / pts of the frame
1233 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1235 double frame_delay, pts;
1240 /* update video clock with pts, if present */
1241 is->video_clock = pts;
1243 pts = is->video_clock;
1245 /* update video clock for next frame */
1246 frame_delay = av_q2d(is->video_st->codec->time_base);
1247 /* for MPEG2, the frame can be repeated, so we update the
1248 clock accordingly */
1249 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1250 is->video_clock += frame_delay;
1252 #if defined(DEBUG_SYNC) && 0
1255 if (src_frame->pict_type == FF_B_TYPE)
1257 else if (src_frame->pict_type == FF_I_TYPE)
1261 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1265 return queue_picture(is, src_frame, pts);
1268 static int video_thread(void *arg)
1270 VideoState *is = arg;
1271 AVPacket pkt1, *pkt = &pkt1;
1272 int len1, got_picture;
1273 AVFrame *frame= avcodec_alloc_frame();
1277 while (is->paused && !is->videoq.abort_request) {
1280 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1282 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1283 this packet, if any */
1285 if (pkt->dts != AV_NOPTS_VALUE)
1286 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1288 SDL_LockMutex(is->video_decoder_mutex);
1289 len1 = avcodec_decode_video(is->video_st->codec,
1290 frame, &got_picture,
1291 pkt->data, pkt->size);
1292 SDL_UnlockMutex(is->video_decoder_mutex);
1296 if (output_picture2(is, frame, pts) < 0)
1299 av_free_packet(pkt);
1302 stream_pause(cur_stream);
1309 static int subtitle_thread(void *arg)
1311 VideoState *is = arg;
1313 AVPacket pkt1, *pkt = &pkt1;
1314 int len1, got_subtitle;
1317 int r, g, b, y, u, v, a;
1320 while (is->paused && !is->subtitleq.abort_request) {
1323 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1326 SDL_LockMutex(is->subpq_mutex);
1327 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1328 !is->subtitleq.abort_request) {
1329 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1331 SDL_UnlockMutex(is->subpq_mutex);
1333 if (is->subtitleq.abort_request)
1336 sp = &is->subpq[is->subpq_windex];
1338 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1339 this packet, if any */
1341 if (pkt->pts != AV_NOPTS_VALUE)
1342 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1344 SDL_LockMutex(is->subtitle_decoder_mutex);
1345 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1346 &sp->sub, &got_subtitle,
1347 pkt->data, pkt->size);
1348 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1351 if (got_subtitle && sp->sub.format == 0) {
1354 for (i = 0; i < sp->sub.num_rects; i++)
1356 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1358 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1359 y = RGB_TO_Y_CCIR(r, g, b);
1360 u = RGB_TO_U_CCIR(r, g, b, 0);
1361 v = RGB_TO_V_CCIR(r, g, b, 0);
1362 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1366 /* now we can update the picture count */
1367 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1368 is->subpq_windex = 0;
1369 SDL_LockMutex(is->subpq_mutex);
1371 SDL_UnlockMutex(is->subpq_mutex);
1373 av_free_packet(pkt);
1376 // stream_pause(cur_stream);
1382 /* copy samples for viewing in editor window */
1383 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1385 int size, len, channels;
1387 channels = is->audio_st->codec->channels;
1389 size = samples_size / sizeof(short);
1391 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1394 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1396 is->sample_array_index += len;
1397 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1398 is->sample_array_index = 0;
1403 /* return the new audio buffer size (samples can be added or deleted
1404 to get better sync if video or external master clock) */
1405 static int synchronize_audio(VideoState *is, short *samples,
1406 int samples_size1, double pts)
1408 int n, samples_size;
1411 n = 2 * is->audio_st->codec->channels;
1412 samples_size = samples_size1;
1414 /* if not master, then we try to remove or add samples to correct the clock */
1415 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1416 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1417 double diff, avg_diff;
1418 int wanted_size, min_size, max_size, nb_samples;
1420 ref_clock = get_master_clock(is);
1421 diff = get_audio_clock(is) - ref_clock;
1423 if (diff < AV_NOSYNC_THRESHOLD) {
1424 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1425 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1426 /* not enough measures to have a correct estimate */
1427 is->audio_diff_avg_count++;
1429 /* estimate the A-V difference */
1430 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1432 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1433 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1434 nb_samples = samples_size / n;
1436 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1437 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1438 if (wanted_size < min_size)
1439 wanted_size = min_size;
1440 else if (wanted_size > max_size)
1441 wanted_size = max_size;
1443 /* add or remove samples to correction the synchro */
1444 if (wanted_size < samples_size) {
1445 /* remove samples */
1446 samples_size = wanted_size;
1447 } else if (wanted_size > samples_size) {
1448 uint8_t *samples_end, *q;
1452 nb = (samples_size - wanted_size);
1453 samples_end = (uint8_t *)samples + samples_size - n;
1454 q = samples_end + n;
1456 memcpy(q, samples_end, n);
1460 samples_size = wanted_size;
1464 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1465 diff, avg_diff, samples_size - samples_size1,
1466 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1470 /* too big difference : may be initial PTS errors, so
1472 is->audio_diff_avg_count = 0;
1473 is->audio_diff_cum = 0;
1477 return samples_size;
1480 /* decode one audio frame and returns its uncompressed size */
1481 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1483 AVPacket *pkt = &is->audio_pkt;
1484 int n, len1, data_size;
1488 /* NOTE: the audio packet can contain several frames */
1489 while (is->audio_pkt_size > 0) {
1490 SDL_LockMutex(is->audio_decoder_mutex);
1491 len1 = avcodec_decode_audio(is->audio_st->codec,
1492 (int16_t *)audio_buf, &data_size,
1493 is->audio_pkt_data, is->audio_pkt_size);
1494 SDL_UnlockMutex(is->audio_decoder_mutex);
1496 /* if error, we skip the frame */
1497 is->audio_pkt_size = 0;
1501 is->audio_pkt_data += len1;
1502 is->audio_pkt_size -= len1;
1505 /* if no pts, then compute it */
1506 pts = is->audio_clock;
1508 n = 2 * is->audio_st->codec->channels;
1509 is->audio_clock += (double)data_size /
1510 (double)(n * is->audio_st->codec->sample_rate);
1511 #if defined(DEBUG_SYNC)
1513 static double last_clock;
1514 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1515 is->audio_clock - last_clock,
1516 is->audio_clock, pts);
1517 last_clock = is->audio_clock;
1523 /* free the current packet */
1525 av_free_packet(pkt);
1527 if (is->paused || is->audioq.abort_request) {
1531 /* read next packet */
1532 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1534 is->audio_pkt_data = pkt->data;
1535 is->audio_pkt_size = pkt->size;
1537 /* if update the audio clock with the pts */
1538 if (pkt->pts != AV_NOPTS_VALUE) {
1539 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1544 /* get the current audio output buffer size, in samples. With SDL, we
1545 cannot have a precise information */
1546 static int audio_write_get_buf_size(VideoState *is)
1548 return is->audio_hw_buf_size - is->audio_buf_index;
1552 /* prepare a new audio buffer */
1553 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1555 VideoState *is = opaque;
1556 int audio_size, len1;
1559 audio_callback_time = av_gettime();
1562 if (is->audio_buf_index >= is->audio_buf_size) {
1563 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1564 if (audio_size < 0) {
1565 /* if error, just output silence */
1566 is->audio_buf_size = 1024;
1567 memset(is->audio_buf, 0, is->audio_buf_size);
1570 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1571 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1573 is->audio_buf_size = audio_size;
1575 is->audio_buf_index = 0;
1577 len1 = is->audio_buf_size - is->audio_buf_index;
1580 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1583 is->audio_buf_index += len1;
1588 /* open a given stream. Return 0 if OK */
1589 static int stream_component_open(VideoState *is, int stream_index)
1591 AVFormatContext *ic = is->ic;
1592 AVCodecContext *enc;
1594 SDL_AudioSpec wanted_spec, spec;
1596 if (stream_index < 0 || stream_index >= ic->nb_streams)
1598 enc = ic->streams[stream_index]->codec;
1600 /* prepare audio output */
1601 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1602 wanted_spec.freq = enc->sample_rate;
1603 wanted_spec.format = AUDIO_S16SYS;
1604 /* hack for AC3. XXX: suppress that */
1605 if (enc->channels > 2)
1607 wanted_spec.channels = enc->channels;
1608 wanted_spec.silence = 0;
1609 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1610 wanted_spec.callback = sdl_audio_callback;
1611 wanted_spec.userdata = is;
1612 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1613 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1616 is->audio_hw_buf_size = spec.size;
1619 codec = avcodec_find_decoder(enc->codec_id);
1620 enc->debug_mv = debug_mv;
1622 enc->workaround_bugs = workaround_bugs;
1623 enc->lowres = lowres;
1624 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1625 enc->idct_algo= idct;
1626 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1627 enc->skip_frame= skip_frame;
1628 enc->skip_idct= skip_idct;
1629 enc->skip_loop_filter= skip_loop_filter;
1630 enc->error_resilience= error_resilience;
1631 enc->error_concealment= error_concealment;
1633 avcodec_open(enc, codec) < 0)
1635 #if defined(HAVE_THREADS)
1637 avcodec_thread_init(enc, thread_count);
1639 enc->thread_count= thread_count;
1640 switch(enc->codec_type) {
1641 case CODEC_TYPE_AUDIO:
1642 is->audio_stream = stream_index;
1643 is->audio_st = ic->streams[stream_index];
1644 is->audio_buf_size = 0;
1645 is->audio_buf_index = 0;
1647 /* init averaging filter */
1648 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1649 is->audio_diff_avg_count = 0;
1650 /* since we do not have a precise anough audio fifo fullness,
1651 we correct audio sync only if larger than this threshold */
1652 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1654 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1655 packet_queue_init(&is->audioq);
1658 case CODEC_TYPE_VIDEO:
1659 is->video_stream = stream_index;
1660 is->video_st = ic->streams[stream_index];
1662 is->frame_last_delay = 40e-3;
1663 is->frame_timer = (double)av_gettime() / 1000000.0;
1664 is->video_current_pts_time = av_gettime();
1666 packet_queue_init(&is->videoq);
1667 is->video_tid = SDL_CreateThread(video_thread, is);
1669 case CODEC_TYPE_SUBTITLE:
1670 is->subtitle_stream = stream_index;
1671 is->subtitle_st = ic->streams[stream_index];
1672 packet_queue_init(&is->subtitleq);
1674 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1682 static void stream_component_close(VideoState *is, int stream_index)
1684 AVFormatContext *ic = is->ic;
1685 AVCodecContext *enc;
1687 if (stream_index < 0 || stream_index >= ic->nb_streams)
1689 enc = ic->streams[stream_index]->codec;
1691 switch(enc->codec_type) {
1692 case CODEC_TYPE_AUDIO:
1693 packet_queue_abort(&is->audioq);
1697 packet_queue_end(&is->audioq);
1699 case CODEC_TYPE_VIDEO:
1700 packet_queue_abort(&is->videoq);
1702 /* note: we also signal this mutex to make sure we deblock the
1703 video thread in all cases */
1704 SDL_LockMutex(is->pictq_mutex);
1705 SDL_CondSignal(is->pictq_cond);
1706 SDL_UnlockMutex(is->pictq_mutex);
1708 SDL_WaitThread(is->video_tid, NULL);
1710 packet_queue_end(&is->videoq);
1712 case CODEC_TYPE_SUBTITLE:
1713 packet_queue_abort(&is->subtitleq);
1715 /* note: we also signal this mutex to make sure we deblock the
1716 video thread in all cases */
1717 SDL_LockMutex(is->subpq_mutex);
1718 is->subtitle_stream_changed = 1;
1720 SDL_CondSignal(is->subpq_cond);
1721 SDL_UnlockMutex(is->subpq_mutex);
1723 SDL_WaitThread(is->subtitle_tid, NULL);
1725 packet_queue_end(&is->subtitleq);
1732 switch(enc->codec_type) {
1733 case CODEC_TYPE_AUDIO:
1734 is->audio_st = NULL;
1735 is->audio_stream = -1;
1737 case CODEC_TYPE_VIDEO:
1738 is->video_st = NULL;
1739 is->video_stream = -1;
1741 case CODEC_TYPE_SUBTITLE:
1742 is->subtitle_st = NULL;
1743 is->subtitle_stream = -1;
1750 static void dump_stream_info(const AVFormatContext *s)
1753 fprintf(stderr, "Track: %d\n", s->track);
1754 if (s->title[0] != '\0')
1755 fprintf(stderr, "Title: %s\n", s->title);
1756 if (s->author[0] != '\0')
1757 fprintf(stderr, "Author: %s\n", s->author);
1758 if (s->album[0] != '\0')
1759 fprintf(stderr, "Album: %s\n", s->album);
1761 fprintf(stderr, "Year: %d\n", s->year);
1762 if (s->genre[0] != '\0')
1763 fprintf(stderr, "Genre: %s\n", s->genre);
1766 /* since we have only one decoding thread, we can use a global
1767 variable instead of a thread local variable */
1768 static VideoState *global_video_state;
1770 static int decode_interrupt_cb(void)
1772 return (global_video_state && global_video_state->abort_request);
1775 /* this thread gets the stream from the disk or the network */
1776 static int decode_thread(void *arg)
1778 VideoState *is = arg;
1779 AVFormatContext *ic;
1780 int err, i, ret, video_index, audio_index, use_play;
1781 AVPacket pkt1, *pkt = &pkt1;
1782 AVFormatParameters params, *ap = ¶ms;
1786 is->video_stream = -1;
1787 is->audio_stream = -1;
1788 is->subtitle_stream = -1;
1790 global_video_state = is;
1791 url_set_interrupt_cb(decode_interrupt_cb);
1793 memset(ap, 0, sizeof(*ap));
1794 ap->image_format = image_format;
1795 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1798 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1800 print_error(is->filename, err);
1805 #ifdef CONFIG_NETWORK
1806 use_play = (ic->iformat == &rtsp_demuxer);
1812 ic->flags |= AVFMT_FLAG_GENPTS;
1815 err = av_find_stream_info(ic);
1817 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1821 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1824 /* if seeking requested, we execute it */
1825 if (start_time != AV_NOPTS_VALUE) {
1828 timestamp = start_time;
1829 /* add the stream start time */
1830 if (ic->start_time != AV_NOPTS_VALUE)
1831 timestamp += ic->start_time;
1832 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1834 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1835 is->filename, (double)timestamp / AV_TIME_BASE);
1839 /* now we can begin to play (RTSP stream only) */
1843 err = av_find_stream_info(ic);
1845 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1851 for(i = 0; i < ic->nb_streams; i++) {
1852 AVCodecContext *enc = ic->streams[i]->codec;
1853 switch(enc->codec_type) {
1854 case CODEC_TYPE_AUDIO:
1855 if (audio_index < 0 && !audio_disable)
1858 case CODEC_TYPE_VIDEO:
1859 if (video_index < 0 && !video_disable)
1867 dump_format(ic, 0, is->filename, 0);
1868 dump_stream_info(ic);
1871 /* open the streams */
1872 if (audio_index >= 0) {
1873 stream_component_open(is, audio_index);
1876 if (video_index >= 0) {
1877 stream_component_open(is, video_index);
1879 if (!display_disable)
1883 if (is->video_stream < 0 && is->audio_stream < 0) {
1884 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1890 if (is->abort_request)
1892 #ifdef CONFIG_NETWORK
1893 if (is->paused != is->last_paused) {
1894 is->last_paused = is->paused;
1900 if (is->paused && ic->iformat == &rtsp_demuxer) {
1901 /* wait 10 ms to avoid trying to get another packet */
1908 /* XXX: must lock decoder threads */
1909 SDL_LockMutex(is->video_decoder_mutex);
1910 SDL_LockMutex(is->audio_decoder_mutex);
1911 SDL_LockMutex(is->subtitle_decoder_mutex);
1912 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1914 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1916 if (is->audio_stream >= 0) {
1917 packet_queue_flush(&is->audioq);
1919 if (is->subtitle_stream >= 0) {
1920 packet_queue_flush(&is->subtitleq);
1922 if (is->video_stream >= 0) {
1923 packet_queue_flush(&is->videoq);
1924 avcodec_flush_buffers(ic->streams[video_index]->codec);
1927 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1928 SDL_UnlockMutex(is->audio_decoder_mutex);
1929 SDL_UnlockMutex(is->video_decoder_mutex);
1933 /* if the queue are full, no need to read more */
1934 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1935 is->videoq.size > MAX_VIDEOQ_SIZE ||
1936 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
1937 url_feof(&ic->pb)) {
1942 ret = av_read_frame(ic, pkt);
1944 if (url_ferror(&ic->pb) == 0) {
1945 SDL_Delay(100); /* wait for user event */
1950 if (pkt->stream_index == is->audio_stream) {
1951 packet_queue_put(&is->audioq, pkt);
1952 } else if (pkt->stream_index == is->video_stream) {
1953 packet_queue_put(&is->videoq, pkt);
1954 } else if (pkt->stream_index == is->subtitle_stream) {
1955 packet_queue_put(&is->subtitleq, pkt);
1957 av_free_packet(pkt);
1960 /* wait until the end */
1961 while (!is->abort_request) {
1967 /* disable interrupting */
1968 global_video_state = NULL;
1970 /* close each stream */
1971 if (is->audio_stream >= 0)
1972 stream_component_close(is, is->audio_stream);
1973 if (is->video_stream >= 0)
1974 stream_component_close(is, is->video_stream);
1975 if (is->subtitle_stream >= 0)
1976 stream_component_close(is, is->subtitle_stream);
1978 av_close_input_file(is->ic);
1979 is->ic = NULL; /* safety */
1981 url_set_interrupt_cb(NULL);
1986 event.type = FF_QUIT_EVENT;
1987 event.user.data1 = is;
1988 SDL_PushEvent(&event);
1993 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
1997 is = av_mallocz(sizeof(VideoState));
2000 pstrcpy(is->filename, sizeof(is->filename), filename);
2001 is->iformat = iformat;
2003 is->width = screen->w;
2004 is->height = screen->h;
2009 /* start video display */
2010 is->pictq_mutex = SDL_CreateMutex();
2011 is->pictq_cond = SDL_CreateCond();
2013 is->subpq_mutex = SDL_CreateMutex();
2014 is->subpq_cond = SDL_CreateCond();
2016 is->subtitle_decoder_mutex = SDL_CreateMutex();
2017 is->audio_decoder_mutex = SDL_CreateMutex();
2018 is->video_decoder_mutex = SDL_CreateMutex();
2020 /* add the refresh timer to draw the picture */
2021 schedule_refresh(is, 40);
2023 is->av_sync_type = av_sync_type;
2024 is->parse_tid = SDL_CreateThread(decode_thread, is);
2025 if (!is->parse_tid) {
2032 static void stream_close(VideoState *is)
2036 /* XXX: use a special url_shutdown call to abort parse cleanly */
2037 is->abort_request = 1;
2038 SDL_WaitThread(is->parse_tid, NULL);
2040 /* free all pictures */
2041 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2044 SDL_FreeYUVOverlay(vp->bmp);
2048 SDL_DestroyMutex(is->pictq_mutex);
2049 SDL_DestroyCond(is->pictq_cond);
2050 SDL_DestroyMutex(is->subpq_mutex);
2051 SDL_DestroyCond(is->subpq_cond);
2052 SDL_DestroyMutex(is->subtitle_decoder_mutex);
2053 SDL_DestroyMutex(is->audio_decoder_mutex);
2054 SDL_DestroyMutex(is->video_decoder_mutex);
2057 static void stream_cycle_channel(VideoState *is, int codec_type)
2059 AVFormatContext *ic = is->ic;
2060 int start_index, stream_index;
2063 if (codec_type == CODEC_TYPE_VIDEO)
2064 start_index = is->video_stream;
2065 else if (codec_type == CODEC_TYPE_AUDIO)
2066 start_index = is->audio_stream;
2068 start_index = is->subtitle_stream;
2069 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2071 stream_index = start_index;
2073 if (++stream_index >= is->ic->nb_streams)
2075 if (codec_type == CODEC_TYPE_SUBTITLE)
2082 if (stream_index == start_index)
2084 st = ic->streams[stream_index];
2085 if (st->codec->codec_type == codec_type) {
2086 /* check that parameters are OK */
2087 switch(codec_type) {
2088 case CODEC_TYPE_AUDIO:
2089 if (st->codec->sample_rate != 0 &&
2090 st->codec->channels != 0)
2093 case CODEC_TYPE_VIDEO:
2094 case CODEC_TYPE_SUBTITLE:
2102 stream_component_close(is, start_index);
2103 stream_component_open(is, stream_index);
2107 static void toggle_full_screen(void)
2110 is_full_screen = !is_full_screen;
2111 if (!fs_screen_width) {
2112 /* use default SDL method */
2113 SDL_WM_ToggleFullScreen(screen);
2115 /* use the recorded resolution */
2116 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2117 if (is_full_screen) {
2118 w = fs_screen_width;
2119 h = fs_screen_height;
2120 flags |= SDL_FULLSCREEN;
2124 flags |= SDL_RESIZABLE;
2126 screen = SDL_SetVideoMode(w, h, 0, flags);
2127 cur_stream->width = w;
2128 cur_stream->height = h;
2132 static void toggle_pause(void)
2135 stream_pause(cur_stream);
2139 static void step_to_next_frame(void)
2142 if (cur_stream->paused)
2143 cur_stream->paused=0;
2144 cur_stream->video_current_pts = get_video_clock(cur_stream);
2149 static void do_exit(void)
2152 stream_close(cur_stream);
2161 static void toggle_audio_display(void)
2164 cur_stream->show_audio = !cur_stream->show_audio;
2168 /* handle an event sent by the GUI */
2169 static void event_loop(void)
2172 double incr, pos, frac;
2175 SDL_WaitEvent(&event);
2176 switch(event.type) {
2178 switch(event.key.keysym.sym) {
2184 toggle_full_screen();
2190 case SDLK_s: //S: Step to next frame
2191 step_to_next_frame();
2195 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2199 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2203 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2206 toggle_audio_display();
2221 pos = get_master_clock(cur_stream);
2223 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2230 case SDL_MOUSEBUTTONDOWN:
2233 int tns, thh, tmm, tss;
2234 tns = cur_stream->ic->duration/1000000LL;
2236 tmm = (tns%3600)/60;
2238 frac = (double)event.button.x/(double)cur_stream->width;
2243 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2244 hh, mm, ss, thh, tmm, tss);
2245 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2248 case SDL_VIDEORESIZE:
2250 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2251 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2252 cur_stream->width = event.resize.w;
2253 cur_stream->height = event.resize.h;
2260 case FF_ALLOC_EVENT:
2261 alloc_picture(event.user.data1);
2263 case FF_REFRESH_EVENT:
2264 video_refresh_timer(event.user.data1);
2272 void opt_width(const char *arg)
2274 screen_width = atoi(arg);
2277 void opt_height(const char *arg)
2279 screen_height = atoi(arg);
2282 static void opt_format(const char *arg)
2284 file_iformat = av_find_input_format(arg);
2285 if (!file_iformat) {
2286 fprintf(stderr, "Unknown input format: %s\n", arg);
2291 static void opt_image_format(const char *arg)
2295 for(f = first_image_format; f != NULL; f = f->next) {
2296 if (!strcmp(arg, f->name))
2300 fprintf(stderr, "Unknown image format: '%s'\n", arg);
2306 #ifdef CONFIG_NETWORK
2307 void opt_rtp_tcp(void)
2309 /* only tcp protocol */
2310 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2314 void opt_sync(const char *arg)
2316 if (!strcmp(arg, "audio"))
2317 av_sync_type = AV_SYNC_AUDIO_MASTER;
2318 else if (!strcmp(arg, "video"))
2319 av_sync_type = AV_SYNC_VIDEO_MASTER;
2320 else if (!strcmp(arg, "ext"))
2321 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2326 void opt_seek(const char *arg)
2328 start_time = parse_date(arg, 1);
2331 static void opt_debug(const char *arg)
2333 av_log_set_level(99);
2337 static void opt_vismv(const char *arg)
2339 debug_mv = atoi(arg);
2342 static void opt_thread_count(const char *arg)
2344 thread_count= atoi(arg);
2345 #if !defined(HAVE_THREADS)
2346 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2350 const OptionDef options[] = {
2351 { "h", 0, {(void*)show_help}, "show help" },
2352 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2353 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2354 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2355 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2356 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2357 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2358 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2359 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2360 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
2361 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2362 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2363 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2364 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2365 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2366 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2367 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2368 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2369 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2370 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2371 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2372 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2373 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2374 #ifdef CONFIG_NETWORK
2375 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2377 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2378 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2382 void show_help(void)
2384 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
2385 "usage: ffplay [options] input_file\n"
2386 "Simple media player\n");
2388 show_help_options(options, "Main options:\n",
2390 show_help_options(options, "\nAdvanced options:\n",
2391 OPT_EXPERT, OPT_EXPERT);
2392 printf("\nWhile playing:\n"
2394 "f toggle full screen\n"
2396 "a cycle audio channel\n"
2397 "v cycle video channel\n"
2398 "t cycle subtitle channel\n"
2399 "w show audio waves\n"
2400 "left/right seek backward/forward 10 seconds\n"
2401 "down/up seek backward/forward 1 minute\n"
2402 "mouse click seek to percentage in file corresponding to fraction of width\n"
2407 void parse_arg_file(const char *filename)
2409 if (!strcmp(filename, "-"))
2411 input_filename = filename;
2414 /* Called from the main */
2415 int main(int argc, char **argv)
2419 /* register all codecs, demux and protocols */
2423 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2425 // Make stdout and stderr unbuffered
2426 setbuf( stdout, NULL );
2427 setbuf( stderr, NULL );
2430 parse_options(argc, argv, options);
2432 if (!input_filename)
2435 if (display_disable) {
2438 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2439 #if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
2440 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
2442 if (SDL_Init (flags)) {
2443 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2447 if (!display_disable) {
2448 #ifdef HAVE_SDL_VIDEO_SIZE
2449 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2450 fs_screen_width = vi->current_w;
2451 fs_screen_height = vi->current_h;
2453 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2454 if (is_full_screen && fs_screen_width) {
2455 w = fs_screen_width;
2456 h = fs_screen_height;
2457 flags |= SDL_FULLSCREEN;
2461 flags |= SDL_RESIZABLE;
2463 #ifndef CONFIG_DARWIN
2464 screen = SDL_SetVideoMode(w, h, 0, flags);
2466 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
2467 screen = SDL_SetVideoMode(w, h, 24, flags);
2470 fprintf(stderr, "SDL: could not set video mode - exiting\n");
2473 SDL_WM_SetCaption("FFplay", "FFplay");
2476 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2477 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2478 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2479 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2481 cur_stream = stream_open(input_filename, file_iformat);