2 * FFplay : Simple Media Player based on the ffmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #define HAVE_AV_CONFIG_H
29 #include <SDL_thread.h>
32 #undef main /* We don't want SDL to override our main() */
45 DosGetInfoBlocks(&tib, &pib);
47 // Change flag from VIO to PM:
48 if (pib->pib_ultype==2) pib->pib_ultype = 3;
54 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
55 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
56 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
58 /* SDL audio buffer size, in samples. Should be small to have precise
59 A/V sync as SDL does not have hardware buffer fullness info. */
60 #define SDL_AUDIO_BUFFER_SIZE 1024
62 /* no AV sync correction is done if below the AV sync threshold */
63 #define AV_SYNC_THRESHOLD 0.01
64 /* no AV correction is done if too big error */
65 #define AV_NOSYNC_THRESHOLD 10.0
67 /* maximum audio speed change to get correct sync */
68 #define SAMPLE_CORRECTION_PERCENT_MAX 10
70 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
71 #define AUDIO_DIFF_AVG_NB 20
73 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
74 #define SAMPLE_ARRAY_SIZE (2*65536)
76 static int sws_flags = SWS_BICUBIC;
78 typedef struct PacketQueue {
79 AVPacketList *first_pkt, *last_pkt;
87 #define VIDEO_PICTURE_QUEUE_SIZE 1
88 #define SUBPICTURE_QUEUE_SIZE 4
90 typedef struct VideoPicture {
91 double pts; ///<presentation time stamp for this picture
93 int width, height; /* source height & width */
97 typedef struct SubPicture {
98 double pts; /* presentation time stamp for this picture */
103 AV_SYNC_AUDIO_MASTER, /* default choice */
104 AV_SYNC_VIDEO_MASTER,
105 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
108 typedef struct VideoState {
109 SDL_Thread *parse_tid;
110 SDL_Thread *video_tid;
111 AVInputFormat *iformat;
120 int dtg_active_format;
125 double external_clock; /* external clock base */
126 int64_t external_clock_time;
129 double audio_diff_cum; /* used for AV difference average computation */
130 double audio_diff_avg_coef;
131 double audio_diff_threshold;
132 int audio_diff_avg_count;
135 int audio_hw_buf_size;
136 /* samples output by the codec. we reserve more space for avsync
138 DECLARE_ALIGNED(16,uint8_t,audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
139 unsigned int audio_buf_size; /* in bytes */
140 int audio_buf_index; /* in bytes */
142 uint8_t *audio_pkt_data;
145 int show_audio; /* if true, display audio samples */
146 int16_t sample_array[SAMPLE_ARRAY_SIZE];
147 int sample_array_index;
150 SDL_Thread *subtitle_tid;
152 int subtitle_stream_changed;
153 AVStream *subtitle_st;
154 PacketQueue subtitleq;
155 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
156 int subpq_size, subpq_rindex, subpq_windex;
157 SDL_mutex *subpq_mutex;
158 SDL_cond *subpq_cond;
161 double frame_last_pts;
162 double frame_last_delay;
163 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
167 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
168 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
169 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
170 int pictq_size, pictq_rindex, pictq_windex;
171 SDL_mutex *pictq_mutex;
172 SDL_cond *pictq_cond;
174 // QETimer *video_timer;
176 int width, height, xleft, ytop;
179 void show_help(void);
180 static int audio_write_get_buf_size(VideoState *is);
182 /* options specified by the user */
183 static AVInputFormat *file_iformat;
184 static const char *input_filename;
185 static int fs_screen_width;
186 static int fs_screen_height;
187 static int screen_width = 0;
188 static int screen_height = 0;
189 static int frame_width = 0;
190 static int frame_height = 0;
191 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
192 static int audio_disable;
193 static int video_disable;
194 static int wanted_audio_stream= 0;
195 static int seek_by_bytes;
196 static int display_disable;
197 static int show_status;
198 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
199 static int64_t start_time = AV_NOPTS_VALUE;
200 static int debug = 0;
201 static int debug_mv = 0;
203 static int thread_count = 1;
204 static int workaround_bugs = 1;
206 static int genpts = 0;
207 static int lowres = 0;
208 static int idct = FF_IDCT_AUTO;
209 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
210 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
211 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
212 static int error_resilience = FF_ER_CAREFUL;
213 static int error_concealment = 3;
215 /* current context */
216 static int is_full_screen;
217 static VideoState *cur_stream;
218 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 (pkt!=&flush_pkt && 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)
789 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
792 for(i=0; i<1000; i+=channels){
793 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
794 int a= s->sample_array[idx];
795 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
796 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
797 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
799 if(h<score && (b^c)<0){
805 s->last_i_start = i_start;
807 i_start = s->last_i_start;
810 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
811 fill_rectangle(screen,
812 s->xleft, s->ytop, s->width, s->height,
815 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
817 /* total height for one channel */
818 h = s->height / nb_display_channels;
819 /* graph height / 2 */
821 for(ch = 0;ch < nb_display_channels; ch++) {
823 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
824 for(x = 0; x < s->width; x++) {
825 y = (s->sample_array[i] * h2) >> 15;
832 fill_rectangle(screen,
833 s->xleft + x, ys, 1, y,
836 if (i >= SAMPLE_ARRAY_SIZE)
837 i -= SAMPLE_ARRAY_SIZE;
841 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
843 for(ch = 1;ch < nb_display_channels; ch++) {
844 y = s->ytop + ch * h;
845 fill_rectangle(screen,
846 s->xleft, y, s->width, 1,
849 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
852 static int video_open(VideoState *is){
853 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
856 if(is_full_screen) flags |= SDL_FULLSCREEN;
857 else flags |= SDL_RESIZABLE;
859 if (is_full_screen && fs_screen_width) {
861 h = fs_screen_height;
862 } else if(!is_full_screen && screen_width){
865 }else if (is->video_st && is->video_st->codec->width){
866 w = is->video_st->codec->width;
867 h = is->video_st->codec->height;
872 #ifndef CONFIG_DARWIN
873 screen = SDL_SetVideoMode(w, h, 0, flags);
875 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
876 screen = SDL_SetVideoMode(w, h, 24, flags);
879 fprintf(stderr, "SDL: could not set video mode - exiting\n");
882 SDL_WM_SetCaption("FFplay", "FFplay");
884 is->width = screen->w;
885 is->height = screen->h;
890 /* display the current picture, if any */
891 static void video_display(VideoState *is)
894 video_open(cur_stream);
895 if (is->audio_st && is->show_audio)
896 video_audio_display(is);
897 else if (is->video_st)
898 video_image_display(is);
901 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
904 event.type = FF_REFRESH_EVENT;
905 event.user.data1 = opaque;
906 SDL_PushEvent(&event);
907 return 0; /* 0 means stop timer */
910 /* schedule a video refresh in 'delay' ms */
911 static void schedule_refresh(VideoState *is, int delay)
913 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
916 /* get the current audio clock value */
917 static double get_audio_clock(VideoState *is)
920 int hw_buf_size, bytes_per_sec;
921 pts = is->audio_clock;
922 hw_buf_size = audio_write_get_buf_size(is);
925 bytes_per_sec = is->audio_st->codec->sample_rate *
926 2 * is->audio_st->codec->channels;
929 pts -= (double)hw_buf_size / bytes_per_sec;
933 /* get the current video clock value */
934 static double get_video_clock(VideoState *is)
940 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
942 return is->video_current_pts + delta;
945 /* get the current external clock value */
946 static double get_external_clock(VideoState *is)
950 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
953 /* get the current master clock value */
954 static double get_master_clock(VideoState *is)
958 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
960 val = get_video_clock(is);
962 val = get_audio_clock(is);
963 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
965 val = get_audio_clock(is);
967 val = get_video_clock(is);
969 val = get_external_clock(is);
974 /* seek in the stream */
975 static void stream_seek(VideoState *is, int64_t pos, int rel)
979 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
981 is->seek_flags |= AVSEEK_FLAG_BYTE;
986 /* pause or resume the video */
987 static void stream_pause(VideoState *is)
989 is->paused = !is->paused;
991 is->video_current_pts = get_video_clock(is);
992 is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0;
996 /* called to display each frame */
997 static void video_refresh_timer(void *opaque)
999 VideoState *is = opaque;
1001 double actual_delay, delay, sync_threshold, ref_clock, diff;
1003 SubPicture *sp, *sp2;
1006 if (is->pictq_size == 0) {
1007 /* if no picture, need to wait */
1008 schedule_refresh(is, 1);
1010 /* dequeue the picture */
1011 vp = &is->pictq[is->pictq_rindex];
1013 /* update current video pts */
1014 is->video_current_pts = vp->pts;
1015 is->video_current_pts_time = av_gettime();
1017 /* compute nominal delay */
1018 delay = vp->pts - is->frame_last_pts;
1019 if (delay <= 0 || delay >= 1.0) {
1020 /* if incorrect delay, use previous one */
1021 delay = is->frame_last_delay;
1023 is->frame_last_delay = delay;
1024 is->frame_last_pts = vp->pts;
1026 /* update delay to follow master synchronisation source */
1027 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1028 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1029 /* if video is slave, we try to correct big delays by
1030 duplicating or deleting a frame */
1031 ref_clock = get_master_clock(is);
1032 diff = vp->pts - ref_clock;
1034 /* skip or repeat frame. We take into account the
1035 delay to compute the threshold. I still don't know
1036 if it is the best guess */
1037 sync_threshold = AV_SYNC_THRESHOLD;
1038 if (delay > sync_threshold)
1039 sync_threshold = delay;
1040 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1041 if (diff <= -sync_threshold)
1043 else if (diff >= sync_threshold)
1048 is->frame_timer += delay;
1049 /* compute the REAL delay (we need to do that to avoid
1051 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1052 if (actual_delay < 0.010) {
1053 /* XXX: should skip picture */
1054 actual_delay = 0.010;
1056 /* launch timer for next picture */
1057 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
1059 #if defined(DEBUG_SYNC)
1060 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1061 delay, actual_delay, vp->pts, -diff);
1064 if(is->subtitle_st) {
1065 if (is->subtitle_stream_changed) {
1066 SDL_LockMutex(is->subpq_mutex);
1068 while (is->subpq_size) {
1069 free_subpicture(&is->subpq[is->subpq_rindex]);
1071 /* update queue size and signal for next picture */
1072 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1073 is->subpq_rindex = 0;
1077 is->subtitle_stream_changed = 0;
1079 SDL_CondSignal(is->subpq_cond);
1080 SDL_UnlockMutex(is->subpq_mutex);
1082 if (is->subpq_size > 0) {
1083 sp = &is->subpq[is->subpq_rindex];
1085 if (is->subpq_size > 1)
1086 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1090 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1091 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1093 free_subpicture(sp);
1095 /* update queue size and signal for next picture */
1096 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1097 is->subpq_rindex = 0;
1099 SDL_LockMutex(is->subpq_mutex);
1101 SDL_CondSignal(is->subpq_cond);
1102 SDL_UnlockMutex(is->subpq_mutex);
1108 /* display picture */
1111 /* update queue size and signal for next picture */
1112 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1113 is->pictq_rindex = 0;
1115 SDL_LockMutex(is->pictq_mutex);
1117 SDL_CondSignal(is->pictq_cond);
1118 SDL_UnlockMutex(is->pictq_mutex);
1120 } else if (is->audio_st) {
1121 /* draw the next audio frame */
1123 schedule_refresh(is, 40);
1125 /* if only audio stream, then display the audio bars (better
1126 than nothing, just to test the implementation */
1128 /* display picture */
1131 schedule_refresh(is, 100);
1134 static int64_t last_time;
1136 int aqsize, vqsize, sqsize;
1139 cur_time = av_gettime();
1140 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1145 aqsize = is->audioq.size;
1147 vqsize = is->videoq.size;
1148 if (is->subtitle_st)
1149 sqsize = is->subtitleq.size;
1151 if (is->audio_st && is->video_st)
1152 av_diff = get_audio_clock(is) - get_video_clock(is);
1153 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1154 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1156 last_time = cur_time;
1161 /* allocate a picture (needs to do that in main thread to avoid
1162 potential locking problems */
1163 static void alloc_picture(void *opaque)
1165 VideoState *is = opaque;
1168 vp = &is->pictq[is->pictq_windex];
1171 SDL_FreeYUVOverlay(vp->bmp);
1174 /* XXX: use generic function */
1175 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1176 switch(is->video_st->codec->pix_fmt) {
1177 case PIX_FMT_YUV420P:
1178 case PIX_FMT_YUV422P:
1179 case PIX_FMT_YUV444P:
1180 case PIX_FMT_YUYV422:
1181 case PIX_FMT_YUV410P:
1182 case PIX_FMT_YUV411P:
1190 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1191 is->video_st->codec->height,
1194 vp->width = is->video_st->codec->width;
1195 vp->height = is->video_st->codec->height;
1197 SDL_LockMutex(is->pictq_mutex);
1199 SDL_CondSignal(is->pictq_cond);
1200 SDL_UnlockMutex(is->pictq_mutex);
1205 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1207 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1212 static struct SwsContext *img_convert_ctx;
1214 /* wait until we have space to put a new picture */
1215 SDL_LockMutex(is->pictq_mutex);
1216 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1217 !is->videoq.abort_request) {
1218 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1220 SDL_UnlockMutex(is->pictq_mutex);
1222 if (is->videoq.abort_request)
1225 vp = &is->pictq[is->pictq_windex];
1227 /* alloc or resize hardware picture buffer */
1229 vp->width != is->video_st->codec->width ||
1230 vp->height != is->video_st->codec->height) {
1235 /* the allocation must be done in the main thread to avoid
1237 event.type = FF_ALLOC_EVENT;
1238 event.user.data1 = is;
1239 SDL_PushEvent(&event);
1241 /* wait until the picture is allocated */
1242 SDL_LockMutex(is->pictq_mutex);
1243 while (!vp->allocated && !is->videoq.abort_request) {
1244 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1246 SDL_UnlockMutex(is->pictq_mutex);
1248 if (is->videoq.abort_request)
1252 /* if the frame is not skipped, then display it */
1254 /* get a pointer on the bitmap */
1255 SDL_LockYUVOverlay (vp->bmp);
1257 dst_pix_fmt = PIX_FMT_YUV420P;
1258 pict.data[0] = vp->bmp->pixels[0];
1259 pict.data[1] = vp->bmp->pixels[2];
1260 pict.data[2] = vp->bmp->pixels[1];
1262 pict.linesize[0] = vp->bmp->pitches[0];
1263 pict.linesize[1] = vp->bmp->pitches[2];
1264 pict.linesize[2] = vp->bmp->pitches[1];
1265 if (img_convert_ctx == NULL) {
1266 img_convert_ctx = sws_getContext(is->video_st->codec->width,
1267 is->video_st->codec->height, is->video_st->codec->pix_fmt,
1268 is->video_st->codec->width, is->video_st->codec->height,
1269 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1270 if (img_convert_ctx == NULL) {
1271 fprintf(stderr, "Cannot initialize the conversion context\n");
1275 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1276 0, is->video_st->codec->height, pict.data, pict.linesize);
1277 /* update the bitmap content */
1278 SDL_UnlockYUVOverlay(vp->bmp);
1282 /* now we can update the picture count */
1283 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1284 is->pictq_windex = 0;
1285 SDL_LockMutex(is->pictq_mutex);
1287 SDL_UnlockMutex(is->pictq_mutex);
1293 * compute the exact PTS for the picture if it is omitted in the stream
1294 * @param pts1 the dts of the pkt / pts of the frame
1296 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1298 double frame_delay, pts;
1303 /* update video clock with pts, if present */
1304 is->video_clock = pts;
1306 pts = is->video_clock;
1308 /* update video clock for next frame */
1309 frame_delay = av_q2d(is->video_st->codec->time_base);
1310 /* for MPEG2, the frame can be repeated, so we update the
1311 clock accordingly */
1312 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1313 is->video_clock += frame_delay;
1315 #if defined(DEBUG_SYNC) && 0
1318 if (src_frame->pict_type == FF_B_TYPE)
1320 else if (src_frame->pict_type == FF_I_TYPE)
1324 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1328 return queue_picture(is, src_frame, pts);
1331 static int video_thread(void *arg)
1333 VideoState *is = arg;
1334 AVPacket pkt1, *pkt = &pkt1;
1335 int len1, got_picture;
1336 AVFrame *frame= avcodec_alloc_frame();
1340 while (is->paused && !is->videoq.abort_request) {
1343 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1346 if(pkt->data == flush_pkt.data){
1347 avcodec_flush_buffers(is->video_st->codec);
1351 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1352 this packet, if any */
1354 if (pkt->dts != AV_NOPTS_VALUE)
1355 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1357 len1 = avcodec_decode_video(is->video_st->codec,
1358 frame, &got_picture,
1359 pkt->data, pkt->size);
1363 if (output_picture2(is, frame, pts) < 0)
1366 av_free_packet(pkt);
1369 stream_pause(cur_stream);
1376 static int subtitle_thread(void *arg)
1378 VideoState *is = arg;
1380 AVPacket pkt1, *pkt = &pkt1;
1381 int len1, got_subtitle;
1384 int r, g, b, y, u, v, a;
1387 while (is->paused && !is->subtitleq.abort_request) {
1390 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1393 if(pkt->data == flush_pkt.data){
1394 avcodec_flush_buffers(is->subtitle_st->codec);
1397 SDL_LockMutex(is->subpq_mutex);
1398 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1399 !is->subtitleq.abort_request) {
1400 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1402 SDL_UnlockMutex(is->subpq_mutex);
1404 if (is->subtitleq.abort_request)
1407 sp = &is->subpq[is->subpq_windex];
1409 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1410 this packet, if any */
1412 if (pkt->pts != AV_NOPTS_VALUE)
1413 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1415 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1416 &sp->sub, &got_subtitle,
1417 pkt->data, pkt->size);
1420 if (got_subtitle && sp->sub.format == 0) {
1423 for (i = 0; i < sp->sub.num_rects; i++)
1425 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1427 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1428 y = RGB_TO_Y_CCIR(r, g, b);
1429 u = RGB_TO_U_CCIR(r, g, b, 0);
1430 v = RGB_TO_V_CCIR(r, g, b, 0);
1431 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1435 /* now we can update the picture count */
1436 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1437 is->subpq_windex = 0;
1438 SDL_LockMutex(is->subpq_mutex);
1440 SDL_UnlockMutex(is->subpq_mutex);
1442 av_free_packet(pkt);
1445 // stream_pause(cur_stream);
1451 /* copy samples for viewing in editor window */
1452 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1454 int size, len, channels;
1456 channels = is->audio_st->codec->channels;
1458 size = samples_size / sizeof(short);
1460 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1463 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1465 is->sample_array_index += len;
1466 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1467 is->sample_array_index = 0;
1472 /* return the new audio buffer size (samples can be added or deleted
1473 to get better sync if video or external master clock) */
1474 static int synchronize_audio(VideoState *is, short *samples,
1475 int samples_size1, double pts)
1477 int n, samples_size;
1480 n = 2 * is->audio_st->codec->channels;
1481 samples_size = samples_size1;
1483 /* if not master, then we try to remove or add samples to correct the clock */
1484 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1485 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1486 double diff, avg_diff;
1487 int wanted_size, min_size, max_size, nb_samples;
1489 ref_clock = get_master_clock(is);
1490 diff = get_audio_clock(is) - ref_clock;
1492 if (diff < AV_NOSYNC_THRESHOLD) {
1493 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1494 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1495 /* not enough measures to have a correct estimate */
1496 is->audio_diff_avg_count++;
1498 /* estimate the A-V difference */
1499 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1501 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1502 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1503 nb_samples = samples_size / n;
1505 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1506 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1507 if (wanted_size < min_size)
1508 wanted_size = min_size;
1509 else if (wanted_size > max_size)
1510 wanted_size = max_size;
1512 /* add or remove samples to correction the synchro */
1513 if (wanted_size < samples_size) {
1514 /* remove samples */
1515 samples_size = wanted_size;
1516 } else if (wanted_size > samples_size) {
1517 uint8_t *samples_end, *q;
1521 nb = (samples_size - wanted_size);
1522 samples_end = (uint8_t *)samples + samples_size - n;
1523 q = samples_end + n;
1525 memcpy(q, samples_end, n);
1529 samples_size = wanted_size;
1533 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1534 diff, avg_diff, samples_size - samples_size1,
1535 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1539 /* too big difference : may be initial PTS errors, so
1541 is->audio_diff_avg_count = 0;
1542 is->audio_diff_cum = 0;
1546 return samples_size;
1549 /* decode one audio frame and returns its uncompressed size */
1550 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1552 AVPacket *pkt = &is->audio_pkt;
1553 int n, len1, data_size;
1557 /* NOTE: the audio packet can contain several frames */
1558 while (is->audio_pkt_size > 0) {
1559 len1 = avcodec_decode_audio(is->audio_st->codec,
1560 (int16_t *)audio_buf, &data_size,
1561 is->audio_pkt_data, is->audio_pkt_size);
1563 /* if error, we skip the frame */
1564 is->audio_pkt_size = 0;
1568 is->audio_pkt_data += len1;
1569 is->audio_pkt_size -= len1;
1572 /* if no pts, then compute it */
1573 pts = is->audio_clock;
1575 n = 2 * is->audio_st->codec->channels;
1576 is->audio_clock += (double)data_size /
1577 (double)(n * is->audio_st->codec->sample_rate);
1578 #if defined(DEBUG_SYNC)
1580 static double last_clock;
1581 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1582 is->audio_clock - last_clock,
1583 is->audio_clock, pts);
1584 last_clock = is->audio_clock;
1590 /* free the current packet */
1592 av_free_packet(pkt);
1594 if (is->paused || is->audioq.abort_request) {
1598 /* read next packet */
1599 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1601 if(pkt->data == flush_pkt.data){
1602 avcodec_flush_buffers(is->audio_st->codec);
1606 is->audio_pkt_data = pkt->data;
1607 is->audio_pkt_size = pkt->size;
1609 /* if update the audio clock with the pts */
1610 if (pkt->pts != AV_NOPTS_VALUE) {
1611 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1616 /* get the current audio output buffer size, in samples. With SDL, we
1617 cannot have a precise information */
1618 static int audio_write_get_buf_size(VideoState *is)
1620 return is->audio_hw_buf_size - is->audio_buf_index;
1624 /* prepare a new audio buffer */
1625 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1627 VideoState *is = opaque;
1628 int audio_size, len1;
1631 audio_callback_time = av_gettime();
1634 if (is->audio_buf_index >= is->audio_buf_size) {
1635 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1636 if (audio_size < 0) {
1637 /* if error, just output silence */
1638 is->audio_buf_size = 1024;
1639 memset(is->audio_buf, 0, is->audio_buf_size);
1642 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1643 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1645 is->audio_buf_size = audio_size;
1647 is->audio_buf_index = 0;
1649 len1 = is->audio_buf_size - is->audio_buf_index;
1652 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1655 is->audio_buf_index += len1;
1659 /* open a given stream. Return 0 if OK */
1660 static int stream_component_open(VideoState *is, int stream_index)
1662 AVFormatContext *ic = is->ic;
1663 AVCodecContext *enc;
1665 SDL_AudioSpec wanted_spec, spec;
1667 if (stream_index < 0 || stream_index >= ic->nb_streams)
1669 enc = ic->streams[stream_index]->codec;
1671 /* prepare audio output */
1672 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1673 wanted_spec.freq = enc->sample_rate;
1674 wanted_spec.format = AUDIO_S16SYS;
1675 /* hack for AC3. XXX: suppress that */
1676 if (enc->channels > 2)
1678 wanted_spec.channels = enc->channels;
1679 wanted_spec.silence = 0;
1680 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1681 wanted_spec.callback = sdl_audio_callback;
1682 wanted_spec.userdata = is;
1683 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1684 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1687 is->audio_hw_buf_size = spec.size;
1690 codec = avcodec_find_decoder(enc->codec_id);
1691 enc->debug_mv = debug_mv;
1693 enc->workaround_bugs = workaround_bugs;
1694 enc->lowres = lowres;
1695 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1696 enc->idct_algo= idct;
1697 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1698 enc->skip_frame= skip_frame;
1699 enc->skip_idct= skip_idct;
1700 enc->skip_loop_filter= skip_loop_filter;
1701 enc->error_resilience= error_resilience;
1702 enc->error_concealment= error_concealment;
1704 avcodec_open(enc, codec) < 0)
1706 #if defined(HAVE_THREADS)
1708 avcodec_thread_init(enc, thread_count);
1710 enc->thread_count= thread_count;
1711 switch(enc->codec_type) {
1712 case CODEC_TYPE_AUDIO:
1713 is->audio_stream = stream_index;
1714 is->audio_st = ic->streams[stream_index];
1715 is->audio_buf_size = 0;
1716 is->audio_buf_index = 0;
1718 /* init averaging filter */
1719 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1720 is->audio_diff_avg_count = 0;
1721 /* since we do not have a precise anough audio fifo fullness,
1722 we correct audio sync only if larger than this threshold */
1723 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1725 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1726 packet_queue_init(&is->audioq);
1729 case CODEC_TYPE_VIDEO:
1730 is->video_stream = stream_index;
1731 is->video_st = ic->streams[stream_index];
1733 is->frame_last_delay = 40e-3;
1734 is->frame_timer = (double)av_gettime() / 1000000.0;
1735 is->video_current_pts_time = av_gettime();
1737 packet_queue_init(&is->videoq);
1738 is->video_tid = SDL_CreateThread(video_thread, is);
1740 case CODEC_TYPE_SUBTITLE:
1741 is->subtitle_stream = stream_index;
1742 is->subtitle_st = ic->streams[stream_index];
1743 packet_queue_init(&is->subtitleq);
1745 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1753 static void stream_component_close(VideoState *is, int stream_index)
1755 AVFormatContext *ic = is->ic;
1756 AVCodecContext *enc;
1758 if (stream_index < 0 || stream_index >= ic->nb_streams)
1760 enc = ic->streams[stream_index]->codec;
1762 switch(enc->codec_type) {
1763 case CODEC_TYPE_AUDIO:
1764 packet_queue_abort(&is->audioq);
1768 packet_queue_end(&is->audioq);
1770 case CODEC_TYPE_VIDEO:
1771 packet_queue_abort(&is->videoq);
1773 /* note: we also signal this mutex to make sure we deblock the
1774 video thread in all cases */
1775 SDL_LockMutex(is->pictq_mutex);
1776 SDL_CondSignal(is->pictq_cond);
1777 SDL_UnlockMutex(is->pictq_mutex);
1779 SDL_WaitThread(is->video_tid, NULL);
1781 packet_queue_end(&is->videoq);
1783 case CODEC_TYPE_SUBTITLE:
1784 packet_queue_abort(&is->subtitleq);
1786 /* note: we also signal this mutex to make sure we deblock the
1787 video thread in all cases */
1788 SDL_LockMutex(is->subpq_mutex);
1789 is->subtitle_stream_changed = 1;
1791 SDL_CondSignal(is->subpq_cond);
1792 SDL_UnlockMutex(is->subpq_mutex);
1794 SDL_WaitThread(is->subtitle_tid, NULL);
1796 packet_queue_end(&is->subtitleq);
1803 switch(enc->codec_type) {
1804 case CODEC_TYPE_AUDIO:
1805 is->audio_st = NULL;
1806 is->audio_stream = -1;
1808 case CODEC_TYPE_VIDEO:
1809 is->video_st = NULL;
1810 is->video_stream = -1;
1812 case CODEC_TYPE_SUBTITLE:
1813 is->subtitle_st = NULL;
1814 is->subtitle_stream = -1;
1821 static void dump_stream_info(const AVFormatContext *s)
1824 fprintf(stderr, "Track: %d\n", s->track);
1825 if (s->title[0] != '\0')
1826 fprintf(stderr, "Title: %s\n", s->title);
1827 if (s->author[0] != '\0')
1828 fprintf(stderr, "Author: %s\n", s->author);
1829 if (s->copyright[0] != '\0')
1830 fprintf(stderr, "Copyright: %s\n", s->copyright);
1831 if (s->comment[0] != '\0')
1832 fprintf(stderr, "Comment: %s\n", s->comment);
1833 if (s->album[0] != '\0')
1834 fprintf(stderr, "Album: %s\n", s->album);
1836 fprintf(stderr, "Year: %d\n", s->year);
1837 if (s->genre[0] != '\0')
1838 fprintf(stderr, "Genre: %s\n", s->genre);
1841 /* since we have only one decoding thread, we can use a global
1842 variable instead of a thread local variable */
1843 static VideoState *global_video_state;
1845 static int decode_interrupt_cb(void)
1847 return (global_video_state && global_video_state->abort_request);
1850 /* this thread gets the stream from the disk or the network */
1851 static int decode_thread(void *arg)
1853 VideoState *is = arg;
1854 AVFormatContext *ic;
1855 int err, i, ret, video_index, audio_index, use_play;
1856 AVPacket pkt1, *pkt = &pkt1;
1857 AVFormatParameters params, *ap = ¶ms;
1861 is->video_stream = -1;
1862 is->audio_stream = -1;
1863 is->subtitle_stream = -1;
1865 global_video_state = is;
1866 url_set_interrupt_cb(decode_interrupt_cb);
1868 memset(ap, 0, sizeof(*ap));
1869 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1872 ap->width = frame_width;
1873 ap->height= frame_height;
1874 ap->time_base= (AVRational){1, 25};
1875 ap->pix_fmt = frame_pix_fmt;
1877 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1879 print_error(is->filename, err);
1884 #ifdef CONFIG_NETWORK
1885 use_play = (ic->iformat == &rtsp_demuxer);
1891 ic->flags |= AVFMT_FLAG_GENPTS;
1894 err = av_find_stream_info(ic);
1896 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1900 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1903 /* if seeking requested, we execute it */
1904 if (start_time != AV_NOPTS_VALUE) {
1907 timestamp = start_time;
1908 /* add the stream start time */
1909 if (ic->start_time != AV_NOPTS_VALUE)
1910 timestamp += ic->start_time;
1911 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1913 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1914 is->filename, (double)timestamp / AV_TIME_BASE);
1918 /* now we can begin to play (RTSP stream only) */
1922 err = av_find_stream_info(ic);
1924 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1930 for(i = 0; i < ic->nb_streams; i++) {
1931 AVCodecContext *enc = ic->streams[i]->codec;
1932 switch(enc->codec_type) {
1933 case CODEC_TYPE_AUDIO:
1934 if ((audio_index < 0 || wanted_audio_stream-- > 0) && !audio_disable)
1937 case CODEC_TYPE_VIDEO:
1938 if (video_index < 0 && !video_disable)
1946 dump_format(ic, 0, is->filename, 0);
1947 dump_stream_info(ic);
1950 /* open the streams */
1951 if (audio_index >= 0) {
1952 stream_component_open(is, audio_index);
1955 if (video_index >= 0) {
1956 stream_component_open(is, video_index);
1958 if (!display_disable)
1962 if (is->video_stream < 0 && is->audio_stream < 0) {
1963 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1969 if (is->abort_request)
1971 #ifdef CONFIG_NETWORK
1972 if (is->paused != is->last_paused) {
1973 is->last_paused = is->paused;
1979 if (is->paused && ic->iformat == &rtsp_demuxer) {
1980 /* wait 10 ms to avoid trying to get another packet */
1987 int stream_index= -1;
1988 int64_t seek_target= is->seek_pos;
1990 if (is-> video_stream >= 0) stream_index= is-> video_stream;
1991 else if(is-> audio_stream >= 0) stream_index= is-> audio_stream;
1992 else if(is->subtitle_stream >= 0) stream_index= is->subtitle_stream;
1994 if(stream_index>=0){
1995 seek_target= av_rescale_q(seek_target, AV_TIME_BASE_Q, ic->streams[stream_index]->time_base);
1998 ret = av_seek_frame(is->ic, stream_index, seek_target, is->seek_flags);
2000 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2002 if (is->audio_stream >= 0) {
2003 packet_queue_flush(&is->audioq);
2004 packet_queue_put(&is->audioq, &flush_pkt);
2006 if (is->subtitle_stream >= 0) {
2007 packet_queue_flush(&is->subtitleq);
2008 packet_queue_put(&is->subtitleq, &flush_pkt);
2010 if (is->video_stream >= 0) {
2011 packet_queue_flush(&is->videoq);
2012 packet_queue_put(&is->videoq, &flush_pkt);
2018 /* if the queue are full, no need to read more */
2019 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
2020 is->videoq.size > MAX_VIDEOQ_SIZE ||
2021 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
2022 url_feof(&ic->pb)) {
2027 ret = av_read_frame(ic, pkt);
2029 if (url_ferror(&ic->pb) == 0) {
2030 SDL_Delay(100); /* wait for user event */
2035 if (pkt->stream_index == is->audio_stream) {
2036 packet_queue_put(&is->audioq, pkt);
2037 } else if (pkt->stream_index == is->video_stream) {
2038 packet_queue_put(&is->videoq, pkt);
2039 } else if (pkt->stream_index == is->subtitle_stream) {
2040 packet_queue_put(&is->subtitleq, pkt);
2042 av_free_packet(pkt);
2045 /* wait until the end */
2046 while (!is->abort_request) {
2052 /* disable interrupting */
2053 global_video_state = NULL;
2055 /* close each stream */
2056 if (is->audio_stream >= 0)
2057 stream_component_close(is, is->audio_stream);
2058 if (is->video_stream >= 0)
2059 stream_component_close(is, is->video_stream);
2060 if (is->subtitle_stream >= 0)
2061 stream_component_close(is, is->subtitle_stream);
2063 av_close_input_file(is->ic);
2064 is->ic = NULL; /* safety */
2066 url_set_interrupt_cb(NULL);
2071 event.type = FF_QUIT_EVENT;
2072 event.user.data1 = is;
2073 SDL_PushEvent(&event);
2078 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2082 is = av_mallocz(sizeof(VideoState));
2085 pstrcpy(is->filename, sizeof(is->filename), filename);
2086 is->iformat = iformat;
2090 /* start video display */
2091 is->pictq_mutex = SDL_CreateMutex();
2092 is->pictq_cond = SDL_CreateCond();
2094 is->subpq_mutex = SDL_CreateMutex();
2095 is->subpq_cond = SDL_CreateCond();
2097 /* add the refresh timer to draw the picture */
2098 schedule_refresh(is, 40);
2100 is->av_sync_type = av_sync_type;
2101 is->parse_tid = SDL_CreateThread(decode_thread, is);
2102 if (!is->parse_tid) {
2109 static void stream_close(VideoState *is)
2113 /* XXX: use a special url_shutdown call to abort parse cleanly */
2114 is->abort_request = 1;
2115 SDL_WaitThread(is->parse_tid, NULL);
2117 /* free all pictures */
2118 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2121 SDL_FreeYUVOverlay(vp->bmp);
2125 SDL_DestroyMutex(is->pictq_mutex);
2126 SDL_DestroyCond(is->pictq_cond);
2127 SDL_DestroyMutex(is->subpq_mutex);
2128 SDL_DestroyCond(is->subpq_cond);
2131 static void stream_cycle_channel(VideoState *is, int codec_type)
2133 AVFormatContext *ic = is->ic;
2134 int start_index, stream_index;
2137 if (codec_type == CODEC_TYPE_VIDEO)
2138 start_index = is->video_stream;
2139 else if (codec_type == CODEC_TYPE_AUDIO)
2140 start_index = is->audio_stream;
2142 start_index = is->subtitle_stream;
2143 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2145 stream_index = start_index;
2147 if (++stream_index >= is->ic->nb_streams)
2149 if (codec_type == CODEC_TYPE_SUBTITLE)
2156 if (stream_index == start_index)
2158 st = ic->streams[stream_index];
2159 if (st->codec->codec_type == codec_type) {
2160 /* check that parameters are OK */
2161 switch(codec_type) {
2162 case CODEC_TYPE_AUDIO:
2163 if (st->codec->sample_rate != 0 &&
2164 st->codec->channels != 0)
2167 case CODEC_TYPE_VIDEO:
2168 case CODEC_TYPE_SUBTITLE:
2176 stream_component_close(is, start_index);
2177 stream_component_open(is, stream_index);
2181 static void toggle_full_screen(void)
2183 is_full_screen = !is_full_screen;
2184 if (!fs_screen_width) {
2185 /* use default SDL method */
2186 // SDL_WM_ToggleFullScreen(screen);
2188 video_open(cur_stream);
2191 static void toggle_pause(void)
2194 stream_pause(cur_stream);
2198 static void step_to_next_frame(void)
2201 if (cur_stream->paused)
2202 cur_stream->paused=0;
2203 cur_stream->video_current_pts = get_video_clock(cur_stream);
2208 static void do_exit(void)
2211 stream_close(cur_stream);
2220 static void toggle_audio_display(void)
2223 cur_stream->show_audio = !cur_stream->show_audio;
2227 /* handle an event sent by the GUI */
2228 static void event_loop(void)
2231 double incr, pos, frac;
2234 SDL_WaitEvent(&event);
2235 switch(event.type) {
2237 switch(event.key.keysym.sym) {
2243 toggle_full_screen();
2249 case SDLK_s: //S: Step to next frame
2250 step_to_next_frame();
2254 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2258 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2262 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2265 toggle_audio_display();
2280 if (seek_by_bytes) {
2281 pos = url_ftell(&cur_stream->ic->pb);
2282 if (cur_stream->ic->bit_rate)
2283 incr *= cur_stream->ic->bit_rate / 60.0;
2287 stream_seek(cur_stream, pos, incr);
2289 pos = get_master_clock(cur_stream);
2291 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2299 case SDL_MOUSEBUTTONDOWN:
2302 int tns, thh, tmm, tss;
2303 tns = cur_stream->ic->duration/1000000LL;
2305 tmm = (tns%3600)/60;
2307 frac = (double)event.button.x/(double)cur_stream->width;
2312 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2313 hh, mm, ss, thh, tmm, tss);
2314 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2317 case SDL_VIDEORESIZE:
2319 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2320 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2321 screen_width = cur_stream->width = event.resize.w;
2322 screen_height= cur_stream->height= event.resize.h;
2329 case FF_ALLOC_EVENT:
2330 video_open(event.user.data1);
2331 alloc_picture(event.user.data1);
2333 case FF_REFRESH_EVENT:
2334 video_refresh_timer(event.user.data1);
2342 static void opt_frame_size(const char *arg)
2344 if (parse_image_size(&screen_width, &screen_height, arg) < 0) {
2345 fprintf(stderr, "Incorrect frame size\n");
2348 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2349 fprintf(stderr, "Frame size must be a multiple of 2\n");
2354 void opt_width(const char *arg)
2356 screen_width = atoi(arg);
2357 if(screen_width<=0){
2358 fprintf(stderr, "invalid width\n");
2363 void opt_height(const char *arg)
2365 screen_height = atoi(arg);
2366 if(screen_height<=0){
2367 fprintf(stderr, "invalid height\n");
2372 static void opt_format(const char *arg)
2374 file_iformat = av_find_input_format(arg);
2375 if (!file_iformat) {
2376 fprintf(stderr, "Unknown input format: %s\n", arg);
2381 static void opt_frame_pix_fmt(const char *arg)
2383 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2386 #ifdef CONFIG_NETWORK
2387 void opt_rtp_tcp(void)
2389 /* only tcp protocol */
2390 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2394 void opt_sync(const char *arg)
2396 if (!strcmp(arg, "audio"))
2397 av_sync_type = AV_SYNC_AUDIO_MASTER;
2398 else if (!strcmp(arg, "video"))
2399 av_sync_type = AV_SYNC_VIDEO_MASTER;
2400 else if (!strcmp(arg, "ext"))
2401 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2406 void opt_seek(const char *arg)
2408 start_time = parse_date(arg, 1);
2411 static void opt_debug(const char *arg)
2417 static void opt_vismv(const char *arg)
2419 debug_mv = atoi(arg);
2422 static void opt_thread_count(const char *arg)
2424 thread_count= atoi(arg);
2425 #if !defined(HAVE_THREADS)
2426 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2430 const OptionDef options[] = {
2431 { "h", 0, {(void*)show_help}, "show help" },
2432 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2433 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2434 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2435 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2436 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2437 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2438 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "", "" },
2439 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2440 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2441 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2442 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2443 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2444 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2445 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2446 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2447 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2448 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2449 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2450 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2451 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2452 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2453 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2454 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2455 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2456 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2457 #ifdef CONFIG_NETWORK
2458 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2460 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2461 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2465 void show_help(void)
2467 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2006 Fabrice Bellard, et al.\n"
2468 "usage: ffplay [options] input_file\n"
2469 "Simple media player\n");
2471 show_help_options(options, "Main options:\n",
2473 show_help_options(options, "\nAdvanced options:\n",
2474 OPT_EXPERT, OPT_EXPERT);
2475 printf("\nWhile playing:\n"
2477 "f toggle full screen\n"
2479 "a cycle audio channel\n"
2480 "v cycle video channel\n"
2481 "t cycle subtitle channel\n"
2482 "w show audio waves\n"
2483 "left/right seek backward/forward 10 seconds\n"
2484 "down/up seek backward/forward 1 minute\n"
2485 "mouse click seek to percentage in file corresponding to fraction of width\n"
2490 void parse_arg_file(const char *filename)
2492 if (!strcmp(filename, "-"))
2494 input_filename = filename;
2497 /* Called from the main */
2498 int main(int argc, char **argv)
2502 /* register all codecs, demux and protocols */
2506 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2508 // Make stdout and stderr unbuffered
2509 setbuf( stdout, NULL );
2510 setbuf( stderr, NULL );
2513 parse_options(argc, argv, options);
2515 if (!input_filename)
2518 if (display_disable) {
2521 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2522 #if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
2523 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
2525 if (SDL_Init (flags)) {
2526 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2530 if (!display_disable) {
2531 #ifdef HAVE_SDL_VIDEO_SIZE
2532 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2533 fs_screen_width = vi->current_w;
2534 fs_screen_height = vi->current_h;
2538 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2539 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2540 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2541 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2543 av_init_packet(&flush_pkt);
2544 flush_pkt.data= "FLUSH";
2546 cur_stream = stream_open(input_filename, file_iformat);