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 = 640;
188 static int screen_height = 480;
189 static int audio_disable;
190 static int video_disable;
191 static int seek_by_bytes;
192 static int display_disable;
193 static int show_status;
194 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
195 static int64_t start_time = AV_NOPTS_VALUE;
196 static int debug = 0;
197 static int debug_mv = 0;
199 static int thread_count = 1;
200 static int workaround_bugs = 1;
202 static int genpts = 0;
203 static int lowres = 0;
204 static int idct = FF_IDCT_AUTO;
205 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
206 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
207 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
208 static int error_resilience = FF_ER_CAREFUL;
209 static int error_concealment = 3;
211 /* current context */
212 static int is_full_screen;
213 static VideoState *cur_stream;
214 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 (pkt!=&flush_pkt && 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;
921 is->seek_flags |= AVSEEK_FLAG_BYTE;
926 /* pause or resume the video */
927 static void stream_pause(VideoState *is)
929 is->paused = !is->paused;
931 is->video_current_pts = get_video_clock(is);
935 /* called to display each frame */
936 static void video_refresh_timer(void *opaque)
938 VideoState *is = opaque;
940 double actual_delay, delay, sync_threshold, ref_clock, diff;
942 SubPicture *sp, *sp2;
945 if (is->pictq_size == 0) {
946 /* if no picture, need to wait */
947 schedule_refresh(is, 1);
949 /* dequeue the picture */
950 vp = &is->pictq[is->pictq_rindex];
952 /* update current video pts */
953 is->video_current_pts = vp->pts;
954 is->video_current_pts_time = av_gettime();
956 /* compute nominal delay */
957 delay = vp->pts - is->frame_last_pts;
958 if (delay <= 0 || delay >= 1.0) {
959 /* if incorrect delay, use previous one */
960 delay = is->frame_last_delay;
962 is->frame_last_delay = delay;
963 is->frame_last_pts = vp->pts;
965 /* update delay to follow master synchronisation source */
966 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
967 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
968 /* if video is slave, we try to correct big delays by
969 duplicating or deleting a frame */
970 ref_clock = get_master_clock(is);
971 diff = vp->pts - ref_clock;
973 /* skip or repeat frame. We take into account the
974 delay to compute the threshold. I still don't know
975 if it is the best guess */
976 sync_threshold = AV_SYNC_THRESHOLD;
977 if (delay > sync_threshold)
978 sync_threshold = delay;
979 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
980 if (diff <= -sync_threshold)
982 else if (diff >= sync_threshold)
987 is->frame_timer += delay;
988 /* compute the REAL delay (we need to do that to avoid
990 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
991 if (actual_delay < 0.010) {
992 /* XXX: should skip picture */
993 actual_delay = 0.010;
995 /* launch timer for next picture */
996 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
998 #if defined(DEBUG_SYNC)
999 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1000 delay, actual_delay, vp->pts, -diff);
1003 if(is->subtitle_st) {
1004 if (is->subtitle_stream_changed) {
1005 SDL_LockMutex(is->subpq_mutex);
1007 while (is->subpq_size) {
1008 free_subpicture(&is->subpq[is->subpq_rindex]);
1010 /* update queue size and signal for next picture */
1011 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1012 is->subpq_rindex = 0;
1016 is->subtitle_stream_changed = 0;
1018 SDL_CondSignal(is->subpq_cond);
1019 SDL_UnlockMutex(is->subpq_mutex);
1021 if (is->subpq_size > 0) {
1022 sp = &is->subpq[is->subpq_rindex];
1024 if (is->subpq_size > 1)
1025 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1029 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1030 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1032 free_subpicture(sp);
1034 /* update queue size and signal for next picture */
1035 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1036 is->subpq_rindex = 0;
1038 SDL_LockMutex(is->subpq_mutex);
1040 SDL_CondSignal(is->subpq_cond);
1041 SDL_UnlockMutex(is->subpq_mutex);
1047 /* display picture */
1050 /* update queue size and signal for next picture */
1051 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1052 is->pictq_rindex = 0;
1054 SDL_LockMutex(is->pictq_mutex);
1056 SDL_CondSignal(is->pictq_cond);
1057 SDL_UnlockMutex(is->pictq_mutex);
1059 } else if (is->audio_st) {
1060 /* draw the next audio frame */
1062 schedule_refresh(is, 40);
1064 /* if only audio stream, then display the audio bars (better
1065 than nothing, just to test the implementation */
1067 /* display picture */
1070 schedule_refresh(is, 100);
1073 static int64_t last_time;
1075 int aqsize, vqsize, sqsize;
1078 cur_time = av_gettime();
1079 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1084 aqsize = is->audioq.size;
1086 vqsize = is->videoq.size;
1087 if (is->subtitle_st)
1088 sqsize = is->subtitleq.size;
1090 if (is->audio_st && is->video_st)
1091 av_diff = get_audio_clock(is) - get_video_clock(is);
1092 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1093 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1095 last_time = cur_time;
1100 /* allocate a picture (needs to do that in main thread to avoid
1101 potential locking problems */
1102 static void alloc_picture(void *opaque)
1104 VideoState *is = opaque;
1107 vp = &is->pictq[is->pictq_windex];
1110 SDL_FreeYUVOverlay(vp->bmp);
1113 /* XXX: use generic function */
1114 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1115 switch(is->video_st->codec->pix_fmt) {
1116 case PIX_FMT_YUV420P:
1117 case PIX_FMT_YUV422P:
1118 case PIX_FMT_YUV444P:
1119 case PIX_FMT_YUV422:
1120 case PIX_FMT_YUV410P:
1121 case PIX_FMT_YUV411P:
1129 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1130 is->video_st->codec->height,
1133 vp->width = is->video_st->codec->width;
1134 vp->height = is->video_st->codec->height;
1136 SDL_LockMutex(is->pictq_mutex);
1138 SDL_CondSignal(is->pictq_cond);
1139 SDL_UnlockMutex(is->pictq_mutex);
1144 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1146 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1151 static struct SwsContext *img_convert_ctx;
1153 /* wait until we have space to put a new picture */
1154 SDL_LockMutex(is->pictq_mutex);
1155 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1156 !is->videoq.abort_request) {
1157 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1159 SDL_UnlockMutex(is->pictq_mutex);
1161 if (is->videoq.abort_request)
1164 vp = &is->pictq[is->pictq_windex];
1166 /* alloc or resize hardware picture buffer */
1168 vp->width != is->video_st->codec->width ||
1169 vp->height != is->video_st->codec->height) {
1174 /* the allocation must be done in the main thread to avoid
1176 event.type = FF_ALLOC_EVENT;
1177 event.user.data1 = is;
1178 SDL_PushEvent(&event);
1180 /* wait until the picture is allocated */
1181 SDL_LockMutex(is->pictq_mutex);
1182 while (!vp->allocated && !is->videoq.abort_request) {
1183 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1185 SDL_UnlockMutex(is->pictq_mutex);
1187 if (is->videoq.abort_request)
1191 /* if the frame is not skipped, then display it */
1193 /* get a pointer on the bitmap */
1194 SDL_LockYUVOverlay (vp->bmp);
1196 dst_pix_fmt = PIX_FMT_YUV420P;
1197 pict.data[0] = vp->bmp->pixels[0];
1198 pict.data[1] = vp->bmp->pixels[2];
1199 pict.data[2] = vp->bmp->pixels[1];
1201 pict.linesize[0] = vp->bmp->pitches[0];
1202 pict.linesize[1] = vp->bmp->pitches[2];
1203 pict.linesize[2] = vp->bmp->pitches[1];
1204 if (img_convert_ctx == NULL) {
1205 img_convert_ctx = sws_getContext(is->video_st->codec->width,
1206 is->video_st->codec->height, is->video_st->codec->pix_fmt,
1207 is->video_st->codec->width, is->video_st->codec->height,
1208 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1209 if (img_convert_ctx == NULL) {
1210 fprintf(stderr, "Cannot initialize the conversion context\n");
1214 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1215 0, is->video_st->codec->height, pict.data, pict.linesize);
1216 /* update the bitmap content */
1217 SDL_UnlockYUVOverlay(vp->bmp);
1221 /* now we can update the picture count */
1222 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1223 is->pictq_windex = 0;
1224 SDL_LockMutex(is->pictq_mutex);
1226 SDL_UnlockMutex(is->pictq_mutex);
1232 * compute the exact PTS for the picture if it is omitted in the stream
1233 * @param pts1 the dts of the pkt / pts of the frame
1235 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1237 double frame_delay, pts;
1242 /* update video clock with pts, if present */
1243 is->video_clock = pts;
1245 pts = is->video_clock;
1247 /* update video clock for next frame */
1248 frame_delay = av_q2d(is->video_st->codec->time_base);
1249 /* for MPEG2, the frame can be repeated, so we update the
1250 clock accordingly */
1251 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1252 is->video_clock += frame_delay;
1254 #if defined(DEBUG_SYNC) && 0
1257 if (src_frame->pict_type == FF_B_TYPE)
1259 else if (src_frame->pict_type == FF_I_TYPE)
1263 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1267 return queue_picture(is, src_frame, pts);
1270 static int video_thread(void *arg)
1272 VideoState *is = arg;
1273 AVPacket pkt1, *pkt = &pkt1;
1274 int len1, got_picture;
1275 AVFrame *frame= avcodec_alloc_frame();
1279 while (is->paused && !is->videoq.abort_request) {
1282 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1285 if(pkt->data == flush_pkt.data){
1286 avcodec_flush_buffers(is->video_st->codec);
1290 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1291 this packet, if any */
1293 if (pkt->dts != AV_NOPTS_VALUE)
1294 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1296 len1 = avcodec_decode_video(is->video_st->codec,
1297 frame, &got_picture,
1298 pkt->data, pkt->size);
1302 if (output_picture2(is, frame, pts) < 0)
1305 av_free_packet(pkt);
1308 stream_pause(cur_stream);
1315 static int subtitle_thread(void *arg)
1317 VideoState *is = arg;
1319 AVPacket pkt1, *pkt = &pkt1;
1320 int len1, got_subtitle;
1323 int r, g, b, y, u, v, a;
1326 while (is->paused && !is->subtitleq.abort_request) {
1329 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1332 if(pkt->data == flush_pkt.data){
1333 avcodec_flush_buffers(is->subtitle_st->codec);
1336 SDL_LockMutex(is->subpq_mutex);
1337 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1338 !is->subtitleq.abort_request) {
1339 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1341 SDL_UnlockMutex(is->subpq_mutex);
1343 if (is->subtitleq.abort_request)
1346 sp = &is->subpq[is->subpq_windex];
1348 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1349 this packet, if any */
1351 if (pkt->pts != AV_NOPTS_VALUE)
1352 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1354 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1355 &sp->sub, &got_subtitle,
1356 pkt->data, pkt->size);
1359 if (got_subtitle && sp->sub.format == 0) {
1362 for (i = 0; i < sp->sub.num_rects; i++)
1364 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1366 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1367 y = RGB_TO_Y_CCIR(r, g, b);
1368 u = RGB_TO_U_CCIR(r, g, b, 0);
1369 v = RGB_TO_V_CCIR(r, g, b, 0);
1370 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1374 /* now we can update the picture count */
1375 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1376 is->subpq_windex = 0;
1377 SDL_LockMutex(is->subpq_mutex);
1379 SDL_UnlockMutex(is->subpq_mutex);
1381 av_free_packet(pkt);
1384 // stream_pause(cur_stream);
1390 /* copy samples for viewing in editor window */
1391 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1393 int size, len, channels;
1395 channels = is->audio_st->codec->channels;
1397 size = samples_size / sizeof(short);
1399 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1402 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1404 is->sample_array_index += len;
1405 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1406 is->sample_array_index = 0;
1411 /* return the new audio buffer size (samples can be added or deleted
1412 to get better sync if video or external master clock) */
1413 static int synchronize_audio(VideoState *is, short *samples,
1414 int samples_size1, double pts)
1416 int n, samples_size;
1419 n = 2 * is->audio_st->codec->channels;
1420 samples_size = samples_size1;
1422 /* if not master, then we try to remove or add samples to correct the clock */
1423 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1424 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1425 double diff, avg_diff;
1426 int wanted_size, min_size, max_size, nb_samples;
1428 ref_clock = get_master_clock(is);
1429 diff = get_audio_clock(is) - ref_clock;
1431 if (diff < AV_NOSYNC_THRESHOLD) {
1432 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1433 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1434 /* not enough measures to have a correct estimate */
1435 is->audio_diff_avg_count++;
1437 /* estimate the A-V difference */
1438 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1440 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1441 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1442 nb_samples = samples_size / n;
1444 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1445 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1446 if (wanted_size < min_size)
1447 wanted_size = min_size;
1448 else if (wanted_size > max_size)
1449 wanted_size = max_size;
1451 /* add or remove samples to correction the synchro */
1452 if (wanted_size < samples_size) {
1453 /* remove samples */
1454 samples_size = wanted_size;
1455 } else if (wanted_size > samples_size) {
1456 uint8_t *samples_end, *q;
1460 nb = (samples_size - wanted_size);
1461 samples_end = (uint8_t *)samples + samples_size - n;
1462 q = samples_end + n;
1464 memcpy(q, samples_end, n);
1468 samples_size = wanted_size;
1472 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1473 diff, avg_diff, samples_size - samples_size1,
1474 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1478 /* too big difference : may be initial PTS errors, so
1480 is->audio_diff_avg_count = 0;
1481 is->audio_diff_cum = 0;
1485 return samples_size;
1488 /* decode one audio frame and returns its uncompressed size */
1489 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1491 AVPacket *pkt = &is->audio_pkt;
1492 int n, len1, data_size;
1496 /* NOTE: the audio packet can contain several frames */
1497 while (is->audio_pkt_size > 0) {
1498 len1 = avcodec_decode_audio(is->audio_st->codec,
1499 (int16_t *)audio_buf, &data_size,
1500 is->audio_pkt_data, is->audio_pkt_size);
1502 /* if error, we skip the frame */
1503 is->audio_pkt_size = 0;
1507 is->audio_pkt_data += len1;
1508 is->audio_pkt_size -= len1;
1511 /* if no pts, then compute it */
1512 pts = is->audio_clock;
1514 n = 2 * is->audio_st->codec->channels;
1515 is->audio_clock += (double)data_size /
1516 (double)(n * is->audio_st->codec->sample_rate);
1517 #if defined(DEBUG_SYNC)
1519 static double last_clock;
1520 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1521 is->audio_clock - last_clock,
1522 is->audio_clock, pts);
1523 last_clock = is->audio_clock;
1529 /* free the current packet */
1531 av_free_packet(pkt);
1533 if (is->paused || is->audioq.abort_request) {
1537 /* read next packet */
1538 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1540 if(pkt->data == flush_pkt.data){
1541 avcodec_flush_buffers(is->audio_st->codec);
1545 is->audio_pkt_data = pkt->data;
1546 is->audio_pkt_size = pkt->size;
1548 /* if update the audio clock with the pts */
1549 if (pkt->pts != AV_NOPTS_VALUE) {
1550 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1555 /* get the current audio output buffer size, in samples. With SDL, we
1556 cannot have a precise information */
1557 static int audio_write_get_buf_size(VideoState *is)
1559 return is->audio_hw_buf_size - is->audio_buf_index;
1563 /* prepare a new audio buffer */
1564 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1566 VideoState *is = opaque;
1567 int audio_size, len1;
1570 audio_callback_time = av_gettime();
1573 if (is->audio_buf_index >= is->audio_buf_size) {
1574 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1575 if (audio_size < 0) {
1576 /* if error, just output silence */
1577 is->audio_buf_size = 1024;
1578 memset(is->audio_buf, 0, is->audio_buf_size);
1581 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1582 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1584 is->audio_buf_size = audio_size;
1586 is->audio_buf_index = 0;
1588 len1 = is->audio_buf_size - is->audio_buf_index;
1591 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1594 is->audio_buf_index += len1;
1599 /* open a given stream. Return 0 if OK */
1600 static int stream_component_open(VideoState *is, int stream_index)
1602 AVFormatContext *ic = is->ic;
1603 AVCodecContext *enc;
1605 SDL_AudioSpec wanted_spec, spec;
1607 if (stream_index < 0 || stream_index >= ic->nb_streams)
1609 enc = ic->streams[stream_index]->codec;
1611 /* prepare audio output */
1612 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1613 wanted_spec.freq = enc->sample_rate;
1614 wanted_spec.format = AUDIO_S16SYS;
1615 /* hack for AC3. XXX: suppress that */
1616 if (enc->channels > 2)
1618 wanted_spec.channels = enc->channels;
1619 wanted_spec.silence = 0;
1620 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1621 wanted_spec.callback = sdl_audio_callback;
1622 wanted_spec.userdata = is;
1623 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1624 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1627 is->audio_hw_buf_size = spec.size;
1630 codec = avcodec_find_decoder(enc->codec_id);
1631 enc->debug_mv = debug_mv;
1633 enc->workaround_bugs = workaround_bugs;
1634 enc->lowres = lowres;
1635 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1636 enc->idct_algo= idct;
1637 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1638 enc->skip_frame= skip_frame;
1639 enc->skip_idct= skip_idct;
1640 enc->skip_loop_filter= skip_loop_filter;
1641 enc->error_resilience= error_resilience;
1642 enc->error_concealment= error_concealment;
1644 avcodec_open(enc, codec) < 0)
1646 #if defined(HAVE_THREADS)
1648 avcodec_thread_init(enc, thread_count);
1650 enc->thread_count= thread_count;
1651 switch(enc->codec_type) {
1652 case CODEC_TYPE_AUDIO:
1653 is->audio_stream = stream_index;
1654 is->audio_st = ic->streams[stream_index];
1655 is->audio_buf_size = 0;
1656 is->audio_buf_index = 0;
1658 /* init averaging filter */
1659 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1660 is->audio_diff_avg_count = 0;
1661 /* since we do not have a precise anough audio fifo fullness,
1662 we correct audio sync only if larger than this threshold */
1663 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1665 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1666 packet_queue_init(&is->audioq);
1669 case CODEC_TYPE_VIDEO:
1670 is->video_stream = stream_index;
1671 is->video_st = ic->streams[stream_index];
1673 is->frame_last_delay = 40e-3;
1674 is->frame_timer = (double)av_gettime() / 1000000.0;
1675 is->video_current_pts_time = av_gettime();
1677 packet_queue_init(&is->videoq);
1678 is->video_tid = SDL_CreateThread(video_thread, is);
1680 case CODEC_TYPE_SUBTITLE:
1681 is->subtitle_stream = stream_index;
1682 is->subtitle_st = ic->streams[stream_index];
1683 packet_queue_init(&is->subtitleq);
1685 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1693 static void stream_component_close(VideoState *is, int stream_index)
1695 AVFormatContext *ic = is->ic;
1696 AVCodecContext *enc;
1698 if (stream_index < 0 || stream_index >= ic->nb_streams)
1700 enc = ic->streams[stream_index]->codec;
1702 switch(enc->codec_type) {
1703 case CODEC_TYPE_AUDIO:
1704 packet_queue_abort(&is->audioq);
1708 packet_queue_end(&is->audioq);
1710 case CODEC_TYPE_VIDEO:
1711 packet_queue_abort(&is->videoq);
1713 /* note: we also signal this mutex to make sure we deblock the
1714 video thread in all cases */
1715 SDL_LockMutex(is->pictq_mutex);
1716 SDL_CondSignal(is->pictq_cond);
1717 SDL_UnlockMutex(is->pictq_mutex);
1719 SDL_WaitThread(is->video_tid, NULL);
1721 packet_queue_end(&is->videoq);
1723 case CODEC_TYPE_SUBTITLE:
1724 packet_queue_abort(&is->subtitleq);
1726 /* note: we also signal this mutex to make sure we deblock the
1727 video thread in all cases */
1728 SDL_LockMutex(is->subpq_mutex);
1729 is->subtitle_stream_changed = 1;
1731 SDL_CondSignal(is->subpq_cond);
1732 SDL_UnlockMutex(is->subpq_mutex);
1734 SDL_WaitThread(is->subtitle_tid, NULL);
1736 packet_queue_end(&is->subtitleq);
1743 switch(enc->codec_type) {
1744 case CODEC_TYPE_AUDIO:
1745 is->audio_st = NULL;
1746 is->audio_stream = -1;
1748 case CODEC_TYPE_VIDEO:
1749 is->video_st = NULL;
1750 is->video_stream = -1;
1752 case CODEC_TYPE_SUBTITLE:
1753 is->subtitle_st = NULL;
1754 is->subtitle_stream = -1;
1761 static void dump_stream_info(const AVFormatContext *s)
1764 fprintf(stderr, "Track: %d\n", s->track);
1765 if (s->title[0] != '\0')
1766 fprintf(stderr, "Title: %s\n", s->title);
1767 if (s->author[0] != '\0')
1768 fprintf(stderr, "Author: %s\n", s->author);
1769 if (s->copyright[0] != '\0')
1770 fprintf(stderr, "Copyright: %s\n", s->copyright);
1771 if (s->comment[0] != '\0')
1772 fprintf(stderr, "Comment: %s\n", s->comment);
1773 if (s->album[0] != '\0')
1774 fprintf(stderr, "Album: %s\n", s->album);
1776 fprintf(stderr, "Year: %d\n", s->year);
1777 if (s->genre[0] != '\0')
1778 fprintf(stderr, "Genre: %s\n", s->genre);
1781 /* since we have only one decoding thread, we can use a global
1782 variable instead of a thread local variable */
1783 static VideoState *global_video_state;
1785 static int decode_interrupt_cb(void)
1787 return (global_video_state && global_video_state->abort_request);
1790 /* this thread gets the stream from the disk or the network */
1791 static int decode_thread(void *arg)
1793 VideoState *is = arg;
1794 AVFormatContext *ic;
1795 int err, i, ret, video_index, audio_index, use_play;
1796 AVPacket pkt1, *pkt = &pkt1;
1797 AVFormatParameters params, *ap = ¶ms;
1801 is->video_stream = -1;
1802 is->audio_stream = -1;
1803 is->subtitle_stream = -1;
1805 global_video_state = is;
1806 url_set_interrupt_cb(decode_interrupt_cb);
1808 memset(ap, 0, sizeof(*ap));
1809 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1812 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1814 print_error(is->filename, err);
1819 #ifdef CONFIG_NETWORK
1820 use_play = (ic->iformat == &rtsp_demuxer);
1826 ic->flags |= AVFMT_FLAG_GENPTS;
1829 err = av_find_stream_info(ic);
1831 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1835 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1838 /* if seeking requested, we execute it */
1839 if (start_time != AV_NOPTS_VALUE) {
1842 timestamp = start_time;
1843 /* add the stream start time */
1844 if (ic->start_time != AV_NOPTS_VALUE)
1845 timestamp += ic->start_time;
1846 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1848 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1849 is->filename, (double)timestamp / AV_TIME_BASE);
1853 /* now we can begin to play (RTSP stream only) */
1857 err = av_find_stream_info(ic);
1859 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1865 for(i = 0; i < ic->nb_streams; i++) {
1866 AVCodecContext *enc = ic->streams[i]->codec;
1867 switch(enc->codec_type) {
1868 case CODEC_TYPE_AUDIO:
1869 if (audio_index < 0 && !audio_disable)
1872 case CODEC_TYPE_VIDEO:
1873 if (video_index < 0 && !video_disable)
1881 dump_format(ic, 0, is->filename, 0);
1882 dump_stream_info(ic);
1885 /* open the streams */
1886 if (audio_index >= 0) {
1887 stream_component_open(is, audio_index);
1890 if (video_index >= 0) {
1891 stream_component_open(is, video_index);
1893 if (!display_disable)
1897 if (is->video_stream < 0 && is->audio_stream < 0) {
1898 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1904 if (is->abort_request)
1906 #ifdef CONFIG_NETWORK
1907 if (is->paused != is->last_paused) {
1908 is->last_paused = is->paused;
1914 if (is->paused && ic->iformat == &rtsp_demuxer) {
1915 /* wait 10 ms to avoid trying to get another packet */
1922 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1924 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1926 if (is->audio_stream >= 0) {
1927 packet_queue_flush(&is->audioq);
1928 packet_queue_put(&is->audioq, &flush_pkt);
1930 if (is->subtitle_stream >= 0) {
1931 packet_queue_flush(&is->subtitleq);
1932 packet_queue_put(&is->subtitleq, &flush_pkt);
1934 if (is->video_stream >= 0) {
1935 packet_queue_flush(&is->videoq);
1936 packet_queue_put(&is->videoq, &flush_pkt);
1942 /* if the queue are full, no need to read more */
1943 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1944 is->videoq.size > MAX_VIDEOQ_SIZE ||
1945 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
1946 url_feof(&ic->pb)) {
1951 ret = av_read_frame(ic, pkt);
1953 if (url_ferror(&ic->pb) == 0) {
1954 SDL_Delay(100); /* wait for user event */
1959 if (pkt->stream_index == is->audio_stream) {
1960 packet_queue_put(&is->audioq, pkt);
1961 } else if (pkt->stream_index == is->video_stream) {
1962 packet_queue_put(&is->videoq, pkt);
1963 } else if (pkt->stream_index == is->subtitle_stream) {
1964 packet_queue_put(&is->subtitleq, pkt);
1966 av_free_packet(pkt);
1969 /* wait until the end */
1970 while (!is->abort_request) {
1976 /* disable interrupting */
1977 global_video_state = NULL;
1979 /* close each stream */
1980 if (is->audio_stream >= 0)
1981 stream_component_close(is, is->audio_stream);
1982 if (is->video_stream >= 0)
1983 stream_component_close(is, is->video_stream);
1984 if (is->subtitle_stream >= 0)
1985 stream_component_close(is, is->subtitle_stream);
1987 av_close_input_file(is->ic);
1988 is->ic = NULL; /* safety */
1990 url_set_interrupt_cb(NULL);
1995 event.type = FF_QUIT_EVENT;
1996 event.user.data1 = is;
1997 SDL_PushEvent(&event);
2002 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2006 is = av_mallocz(sizeof(VideoState));
2009 pstrcpy(is->filename, sizeof(is->filename), filename);
2010 is->iformat = iformat;
2012 is->width = screen->w;
2013 is->height = screen->h;
2018 /* start video display */
2019 is->pictq_mutex = SDL_CreateMutex();
2020 is->pictq_cond = SDL_CreateCond();
2022 is->subpq_mutex = SDL_CreateMutex();
2023 is->subpq_cond = SDL_CreateCond();
2025 /* add the refresh timer to draw the picture */
2026 schedule_refresh(is, 40);
2028 is->av_sync_type = av_sync_type;
2029 is->parse_tid = SDL_CreateThread(decode_thread, is);
2030 if (!is->parse_tid) {
2037 static void stream_close(VideoState *is)
2041 /* XXX: use a special url_shutdown call to abort parse cleanly */
2042 is->abort_request = 1;
2043 SDL_WaitThread(is->parse_tid, NULL);
2045 /* free all pictures */
2046 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2049 SDL_FreeYUVOverlay(vp->bmp);
2053 SDL_DestroyMutex(is->pictq_mutex);
2054 SDL_DestroyCond(is->pictq_cond);
2055 SDL_DestroyMutex(is->subpq_mutex);
2056 SDL_DestroyCond(is->subpq_cond);
2059 static void stream_cycle_channel(VideoState *is, int codec_type)
2061 AVFormatContext *ic = is->ic;
2062 int start_index, stream_index;
2065 if (codec_type == CODEC_TYPE_VIDEO)
2066 start_index = is->video_stream;
2067 else if (codec_type == CODEC_TYPE_AUDIO)
2068 start_index = is->audio_stream;
2070 start_index = is->subtitle_stream;
2071 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2073 stream_index = start_index;
2075 if (++stream_index >= is->ic->nb_streams)
2077 if (codec_type == CODEC_TYPE_SUBTITLE)
2084 if (stream_index == start_index)
2086 st = ic->streams[stream_index];
2087 if (st->codec->codec_type == codec_type) {
2088 /* check that parameters are OK */
2089 switch(codec_type) {
2090 case CODEC_TYPE_AUDIO:
2091 if (st->codec->sample_rate != 0 &&
2092 st->codec->channels != 0)
2095 case CODEC_TYPE_VIDEO:
2096 case CODEC_TYPE_SUBTITLE:
2104 stream_component_close(is, start_index);
2105 stream_component_open(is, stream_index);
2109 static void toggle_full_screen(void)
2112 is_full_screen = !is_full_screen;
2113 if (!fs_screen_width) {
2114 /* use default SDL method */
2115 SDL_WM_ToggleFullScreen(screen);
2117 /* use the recorded resolution */
2118 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2119 if (is_full_screen) {
2120 w = fs_screen_width;
2121 h = fs_screen_height;
2122 flags |= SDL_FULLSCREEN;
2126 flags |= SDL_RESIZABLE;
2128 screen = SDL_SetVideoMode(w, h, 0, flags);
2129 cur_stream->width = w;
2130 cur_stream->height = h;
2134 static void toggle_pause(void)
2137 stream_pause(cur_stream);
2141 static void step_to_next_frame(void)
2144 if (cur_stream->paused)
2145 cur_stream->paused=0;
2146 cur_stream->video_current_pts = get_video_clock(cur_stream);
2151 static void do_exit(void)
2154 stream_close(cur_stream);
2163 static void toggle_audio_display(void)
2166 cur_stream->show_audio = !cur_stream->show_audio;
2170 /* handle an event sent by the GUI */
2171 static void event_loop(void)
2174 double incr, pos, frac;
2177 SDL_WaitEvent(&event);
2178 switch(event.type) {
2180 switch(event.key.keysym.sym) {
2186 toggle_full_screen();
2192 case SDLK_s: //S: Step to next frame
2193 step_to_next_frame();
2197 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2201 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2205 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2208 toggle_audio_display();
2223 if (seek_by_bytes) {
2224 pos = url_ftell(&cur_stream->ic->pb);
2225 if (cur_stream->ic->bit_rate)
2226 incr *= cur_stream->ic->bit_rate / 60.0;
2230 stream_seek(cur_stream, pos, incr);
2232 pos = get_master_clock(cur_stream);
2234 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2242 case SDL_MOUSEBUTTONDOWN:
2245 int tns, thh, tmm, tss;
2246 tns = cur_stream->ic->duration/1000000LL;
2248 tmm = (tns%3600)/60;
2250 frac = (double)event.button.x/(double)cur_stream->width;
2255 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2256 hh, mm, ss, thh, tmm, tss);
2257 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2260 case SDL_VIDEORESIZE:
2262 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2263 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2264 cur_stream->width = event.resize.w;
2265 cur_stream->height = event.resize.h;
2272 case FF_ALLOC_EVENT:
2273 alloc_picture(event.user.data1);
2275 case FF_REFRESH_EVENT:
2276 video_refresh_timer(event.user.data1);
2284 void opt_width(const char *arg)
2286 screen_width = atoi(arg);
2289 void opt_height(const char *arg)
2291 screen_height = atoi(arg);
2294 static void opt_format(const char *arg)
2296 file_iformat = av_find_input_format(arg);
2297 if (!file_iformat) {
2298 fprintf(stderr, "Unknown input format: %s\n", arg);
2303 #ifdef CONFIG_NETWORK
2304 void opt_rtp_tcp(void)
2306 /* only tcp protocol */
2307 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2311 void opt_sync(const char *arg)
2313 if (!strcmp(arg, "audio"))
2314 av_sync_type = AV_SYNC_AUDIO_MASTER;
2315 else if (!strcmp(arg, "video"))
2316 av_sync_type = AV_SYNC_VIDEO_MASTER;
2317 else if (!strcmp(arg, "ext"))
2318 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2323 void opt_seek(const char *arg)
2325 start_time = parse_date(arg, 1);
2328 static void opt_debug(const char *arg)
2330 av_log_set_level(99);
2334 static void opt_vismv(const char *arg)
2336 debug_mv = atoi(arg);
2339 static void opt_thread_count(const char *arg)
2341 thread_count= atoi(arg);
2342 #if !defined(HAVE_THREADS)
2343 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2347 const OptionDef options[] = {
2348 { "h", 0, {(void*)show_help}, "show help" },
2349 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2350 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2351 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2352 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2353 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2354 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2355 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2356 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2357 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2358 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2359 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2360 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2361 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2362 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2363 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2364 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2365 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2366 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2367 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2368 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2369 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2370 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2371 #ifdef CONFIG_NETWORK
2372 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2374 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2375 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2379 void show_help(void)
2381 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2006 Fabrice Bellard, et al.\n"
2382 "usage: ffplay [options] input_file\n"
2383 "Simple media player\n");
2385 show_help_options(options, "Main options:\n",
2387 show_help_options(options, "\nAdvanced options:\n",
2388 OPT_EXPERT, OPT_EXPERT);
2389 printf("\nWhile playing:\n"
2391 "f toggle full screen\n"
2393 "a cycle audio channel\n"
2394 "v cycle video channel\n"
2395 "t cycle subtitle channel\n"
2396 "w show audio waves\n"
2397 "left/right seek backward/forward 10 seconds\n"
2398 "down/up seek backward/forward 1 minute\n"
2399 "mouse click seek to percentage in file corresponding to fraction of width\n"
2404 void parse_arg_file(const char *filename)
2406 if (!strcmp(filename, "-"))
2408 input_filename = filename;
2411 /* Called from the main */
2412 int main(int argc, char **argv)
2416 /* register all codecs, demux and protocols */
2420 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2422 // Make stdout and stderr unbuffered
2423 setbuf( stdout, NULL );
2424 setbuf( stderr, NULL );
2427 parse_options(argc, argv, options);
2429 if (!input_filename)
2432 if (display_disable) {
2435 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2436 #if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
2437 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
2439 if (SDL_Init (flags)) {
2440 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2444 if (!display_disable) {
2445 #ifdef HAVE_SDL_VIDEO_SIZE
2446 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2447 fs_screen_width = vi->current_w;
2448 fs_screen_height = vi->current_h;
2450 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2451 if (is_full_screen && fs_screen_width) {
2452 w = fs_screen_width;
2453 h = fs_screen_height;
2454 flags |= SDL_FULLSCREEN;
2458 flags |= SDL_RESIZABLE;
2460 #ifndef CONFIG_DARWIN
2461 screen = SDL_SetVideoMode(w, h, 0, flags);
2463 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
2464 screen = SDL_SetVideoMode(w, h, 24, flags);
2467 fprintf(stderr, "SDL: could not set video mode - exiting\n");
2470 SDL_WM_SetCaption("FFplay", "FFplay");
2473 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2474 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2475 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2476 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2478 av_init_packet(&flush_pkt);
2479 flush_pkt.data= "FLUSH";
2481 cur_stream = stream_open(input_filename, file_iformat);