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 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 static int video_open(VideoState *is);
834 /* display the current picture, if any */
835 static void video_display(VideoState *is)
838 video_open(cur_stream);
839 if (is->audio_st && is->show_audio)
840 video_audio_display(is);
841 else if (is->video_st)
842 video_image_display(is);
845 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
848 event.type = FF_REFRESH_EVENT;
849 event.user.data1 = opaque;
850 SDL_PushEvent(&event);
851 return 0; /* 0 means stop timer */
854 /* schedule a video refresh in 'delay' ms */
855 static void schedule_refresh(VideoState *is, int delay)
857 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
860 /* get the current audio clock value */
861 static double get_audio_clock(VideoState *is)
864 int hw_buf_size, bytes_per_sec;
865 pts = is->audio_clock;
866 hw_buf_size = audio_write_get_buf_size(is);
869 bytes_per_sec = is->audio_st->codec->sample_rate *
870 2 * is->audio_st->codec->channels;
873 pts -= (double)hw_buf_size / bytes_per_sec;
877 /* get the current video clock value */
878 static double get_video_clock(VideoState *is)
884 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
886 return is->video_current_pts + delta;
889 /* get the current external clock value */
890 static double get_external_clock(VideoState *is)
894 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
897 /* get the current master clock value */
898 static double get_master_clock(VideoState *is)
902 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
904 val = get_video_clock(is);
906 val = get_audio_clock(is);
907 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
909 val = get_audio_clock(is);
911 val = get_video_clock(is);
913 val = get_external_clock(is);
918 /* seek in the stream */
919 static void stream_seek(VideoState *is, int64_t pos, int rel)
923 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
925 is->seek_flags |= AVSEEK_FLAG_BYTE;
930 /* pause or resume the video */
931 static void stream_pause(VideoState *is)
933 is->paused = !is->paused;
935 is->video_current_pts = get_video_clock(is);
939 /* called to display each frame */
940 static void video_refresh_timer(void *opaque)
942 VideoState *is = opaque;
944 double actual_delay, delay, sync_threshold, ref_clock, diff;
946 SubPicture *sp, *sp2;
949 if (is->pictq_size == 0) {
950 /* if no picture, need to wait */
951 schedule_refresh(is, 1);
953 /* dequeue the picture */
954 vp = &is->pictq[is->pictq_rindex];
956 /* update current video pts */
957 is->video_current_pts = vp->pts;
958 is->video_current_pts_time = av_gettime();
960 /* compute nominal delay */
961 delay = vp->pts - is->frame_last_pts;
962 if (delay <= 0 || delay >= 1.0) {
963 /* if incorrect delay, use previous one */
964 delay = is->frame_last_delay;
966 is->frame_last_delay = delay;
967 is->frame_last_pts = vp->pts;
969 /* update delay to follow master synchronisation source */
970 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
971 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
972 /* if video is slave, we try to correct big delays by
973 duplicating or deleting a frame */
974 ref_clock = get_master_clock(is);
975 diff = vp->pts - ref_clock;
977 /* skip or repeat frame. We take into account the
978 delay to compute the threshold. I still don't know
979 if it is the best guess */
980 sync_threshold = AV_SYNC_THRESHOLD;
981 if (delay > sync_threshold)
982 sync_threshold = delay;
983 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
984 if (diff <= -sync_threshold)
986 else if (diff >= sync_threshold)
991 is->frame_timer += delay;
992 /* compute the REAL delay (we need to do that to avoid
994 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
995 if (actual_delay < 0.010) {
996 /* XXX: should skip picture */
997 actual_delay = 0.010;
999 /* launch timer for next picture */
1000 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
1002 #if defined(DEBUG_SYNC)
1003 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1004 delay, actual_delay, vp->pts, -diff);
1007 if(is->subtitle_st) {
1008 if (is->subtitle_stream_changed) {
1009 SDL_LockMutex(is->subpq_mutex);
1011 while (is->subpq_size) {
1012 free_subpicture(&is->subpq[is->subpq_rindex]);
1014 /* update queue size and signal for next picture */
1015 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1016 is->subpq_rindex = 0;
1020 is->subtitle_stream_changed = 0;
1022 SDL_CondSignal(is->subpq_cond);
1023 SDL_UnlockMutex(is->subpq_mutex);
1025 if (is->subpq_size > 0) {
1026 sp = &is->subpq[is->subpq_rindex];
1028 if (is->subpq_size > 1)
1029 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1033 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1034 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1036 free_subpicture(sp);
1038 /* update queue size and signal for next picture */
1039 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1040 is->subpq_rindex = 0;
1042 SDL_LockMutex(is->subpq_mutex);
1044 SDL_CondSignal(is->subpq_cond);
1045 SDL_UnlockMutex(is->subpq_mutex);
1051 /* display picture */
1054 /* update queue size and signal for next picture */
1055 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1056 is->pictq_rindex = 0;
1058 SDL_LockMutex(is->pictq_mutex);
1060 SDL_CondSignal(is->pictq_cond);
1061 SDL_UnlockMutex(is->pictq_mutex);
1063 } else if (is->audio_st) {
1064 /* draw the next audio frame */
1066 schedule_refresh(is, 40);
1068 /* if only audio stream, then display the audio bars (better
1069 than nothing, just to test the implementation */
1071 /* display picture */
1074 schedule_refresh(is, 100);
1077 static int64_t last_time;
1079 int aqsize, vqsize, sqsize;
1082 cur_time = av_gettime();
1083 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1088 aqsize = is->audioq.size;
1090 vqsize = is->videoq.size;
1091 if (is->subtitle_st)
1092 sqsize = is->subtitleq.size;
1094 if (is->audio_st && is->video_st)
1095 av_diff = get_audio_clock(is) - get_video_clock(is);
1096 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1097 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1099 last_time = cur_time;
1104 /* allocate a picture (needs to do that in main thread to avoid
1105 potential locking problems */
1106 static void alloc_picture(void *opaque)
1108 VideoState *is = opaque;
1111 vp = &is->pictq[is->pictq_windex];
1114 SDL_FreeYUVOverlay(vp->bmp);
1117 /* XXX: use generic function */
1118 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1119 switch(is->video_st->codec->pix_fmt) {
1120 case PIX_FMT_YUV420P:
1121 case PIX_FMT_YUV422P:
1122 case PIX_FMT_YUV444P:
1123 case PIX_FMT_YUV422:
1124 case PIX_FMT_YUV410P:
1125 case PIX_FMT_YUV411P:
1133 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1134 is->video_st->codec->height,
1137 vp->width = is->video_st->codec->width;
1138 vp->height = is->video_st->codec->height;
1140 SDL_LockMutex(is->pictq_mutex);
1142 SDL_CondSignal(is->pictq_cond);
1143 SDL_UnlockMutex(is->pictq_mutex);
1148 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1150 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1155 static struct SwsContext *img_convert_ctx;
1157 /* wait until we have space to put a new picture */
1158 SDL_LockMutex(is->pictq_mutex);
1159 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1160 !is->videoq.abort_request) {
1161 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1163 SDL_UnlockMutex(is->pictq_mutex);
1165 if (is->videoq.abort_request)
1168 vp = &is->pictq[is->pictq_windex];
1170 /* alloc or resize hardware picture buffer */
1172 vp->width != is->video_st->codec->width ||
1173 vp->height != is->video_st->codec->height) {
1178 /* the allocation must be done in the main thread to avoid
1180 event.type = FF_ALLOC_EVENT;
1181 event.user.data1 = is;
1182 SDL_PushEvent(&event);
1184 /* wait until the picture is allocated */
1185 SDL_LockMutex(is->pictq_mutex);
1186 while (!vp->allocated && !is->videoq.abort_request) {
1187 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1189 SDL_UnlockMutex(is->pictq_mutex);
1191 if (is->videoq.abort_request)
1195 /* if the frame is not skipped, then display it */
1197 /* get a pointer on the bitmap */
1198 SDL_LockYUVOverlay (vp->bmp);
1200 dst_pix_fmt = PIX_FMT_YUV420P;
1201 pict.data[0] = vp->bmp->pixels[0];
1202 pict.data[1] = vp->bmp->pixels[2];
1203 pict.data[2] = vp->bmp->pixels[1];
1205 pict.linesize[0] = vp->bmp->pitches[0];
1206 pict.linesize[1] = vp->bmp->pitches[2];
1207 pict.linesize[2] = vp->bmp->pitches[1];
1208 if (img_convert_ctx == NULL) {
1209 img_convert_ctx = sws_getContext(is->video_st->codec->width,
1210 is->video_st->codec->height, is->video_st->codec->pix_fmt,
1211 is->video_st->codec->width, is->video_st->codec->height,
1212 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1213 if (img_convert_ctx == NULL) {
1214 fprintf(stderr, "Cannot initialize the conversion context\n");
1218 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1219 0, is->video_st->codec->height, pict.data, pict.linesize);
1220 /* update the bitmap content */
1221 SDL_UnlockYUVOverlay(vp->bmp);
1225 /* now we can update the picture count */
1226 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1227 is->pictq_windex = 0;
1228 SDL_LockMutex(is->pictq_mutex);
1230 SDL_UnlockMutex(is->pictq_mutex);
1236 * compute the exact PTS for the picture if it is omitted in the stream
1237 * @param pts1 the dts of the pkt / pts of the frame
1239 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1241 double frame_delay, pts;
1246 /* update video clock with pts, if present */
1247 is->video_clock = pts;
1249 pts = is->video_clock;
1251 /* update video clock for next frame */
1252 frame_delay = av_q2d(is->video_st->codec->time_base);
1253 /* for MPEG2, the frame can be repeated, so we update the
1254 clock accordingly */
1255 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1256 is->video_clock += frame_delay;
1258 #if defined(DEBUG_SYNC) && 0
1261 if (src_frame->pict_type == FF_B_TYPE)
1263 else if (src_frame->pict_type == FF_I_TYPE)
1267 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1271 return queue_picture(is, src_frame, pts);
1274 static int video_thread(void *arg)
1276 VideoState *is = arg;
1277 AVPacket pkt1, *pkt = &pkt1;
1278 int len1, got_picture;
1279 AVFrame *frame= avcodec_alloc_frame();
1283 while (is->paused && !is->videoq.abort_request) {
1286 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1289 if(pkt->data == flush_pkt.data){
1290 avcodec_flush_buffers(is->video_st->codec);
1294 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1295 this packet, if any */
1297 if (pkt->dts != AV_NOPTS_VALUE)
1298 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1300 len1 = avcodec_decode_video(is->video_st->codec,
1301 frame, &got_picture,
1302 pkt->data, pkt->size);
1306 if (output_picture2(is, frame, pts) < 0)
1309 av_free_packet(pkt);
1312 stream_pause(cur_stream);
1319 static int subtitle_thread(void *arg)
1321 VideoState *is = arg;
1323 AVPacket pkt1, *pkt = &pkt1;
1324 int len1, got_subtitle;
1327 int r, g, b, y, u, v, a;
1330 while (is->paused && !is->subtitleq.abort_request) {
1333 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1336 if(pkt->data == flush_pkt.data){
1337 avcodec_flush_buffers(is->subtitle_st->codec);
1340 SDL_LockMutex(is->subpq_mutex);
1341 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1342 !is->subtitleq.abort_request) {
1343 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1345 SDL_UnlockMutex(is->subpq_mutex);
1347 if (is->subtitleq.abort_request)
1350 sp = &is->subpq[is->subpq_windex];
1352 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1353 this packet, if any */
1355 if (pkt->pts != AV_NOPTS_VALUE)
1356 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1358 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1359 &sp->sub, &got_subtitle,
1360 pkt->data, pkt->size);
1363 if (got_subtitle && sp->sub.format == 0) {
1366 for (i = 0; i < sp->sub.num_rects; i++)
1368 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1370 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1371 y = RGB_TO_Y_CCIR(r, g, b);
1372 u = RGB_TO_U_CCIR(r, g, b, 0);
1373 v = RGB_TO_V_CCIR(r, g, b, 0);
1374 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1378 /* now we can update the picture count */
1379 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1380 is->subpq_windex = 0;
1381 SDL_LockMutex(is->subpq_mutex);
1383 SDL_UnlockMutex(is->subpq_mutex);
1385 av_free_packet(pkt);
1388 // stream_pause(cur_stream);
1394 /* copy samples for viewing in editor window */
1395 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1397 int size, len, channels;
1399 channels = is->audio_st->codec->channels;
1401 size = samples_size / sizeof(short);
1403 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1406 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1408 is->sample_array_index += len;
1409 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1410 is->sample_array_index = 0;
1415 /* return the new audio buffer size (samples can be added or deleted
1416 to get better sync if video or external master clock) */
1417 static int synchronize_audio(VideoState *is, short *samples,
1418 int samples_size1, double pts)
1420 int n, samples_size;
1423 n = 2 * is->audio_st->codec->channels;
1424 samples_size = samples_size1;
1426 /* if not master, then we try to remove or add samples to correct the clock */
1427 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1428 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1429 double diff, avg_diff;
1430 int wanted_size, min_size, max_size, nb_samples;
1432 ref_clock = get_master_clock(is);
1433 diff = get_audio_clock(is) - ref_clock;
1435 if (diff < AV_NOSYNC_THRESHOLD) {
1436 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1437 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1438 /* not enough measures to have a correct estimate */
1439 is->audio_diff_avg_count++;
1441 /* estimate the A-V difference */
1442 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1444 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1445 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1446 nb_samples = samples_size / n;
1448 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1449 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1450 if (wanted_size < min_size)
1451 wanted_size = min_size;
1452 else if (wanted_size > max_size)
1453 wanted_size = max_size;
1455 /* add or remove samples to correction the synchro */
1456 if (wanted_size < samples_size) {
1457 /* remove samples */
1458 samples_size = wanted_size;
1459 } else if (wanted_size > samples_size) {
1460 uint8_t *samples_end, *q;
1464 nb = (samples_size - wanted_size);
1465 samples_end = (uint8_t *)samples + samples_size - n;
1466 q = samples_end + n;
1468 memcpy(q, samples_end, n);
1472 samples_size = wanted_size;
1476 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1477 diff, avg_diff, samples_size - samples_size1,
1478 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1482 /* too big difference : may be initial PTS errors, so
1484 is->audio_diff_avg_count = 0;
1485 is->audio_diff_cum = 0;
1489 return samples_size;
1492 /* decode one audio frame and returns its uncompressed size */
1493 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1495 AVPacket *pkt = &is->audio_pkt;
1496 int n, len1, data_size;
1500 /* NOTE: the audio packet can contain several frames */
1501 while (is->audio_pkt_size > 0) {
1502 len1 = avcodec_decode_audio(is->audio_st->codec,
1503 (int16_t *)audio_buf, &data_size,
1504 is->audio_pkt_data, is->audio_pkt_size);
1506 /* if error, we skip the frame */
1507 is->audio_pkt_size = 0;
1511 is->audio_pkt_data += len1;
1512 is->audio_pkt_size -= len1;
1515 /* if no pts, then compute it */
1516 pts = is->audio_clock;
1518 n = 2 * is->audio_st->codec->channels;
1519 is->audio_clock += (double)data_size /
1520 (double)(n * is->audio_st->codec->sample_rate);
1521 #if defined(DEBUG_SYNC)
1523 static double last_clock;
1524 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1525 is->audio_clock - last_clock,
1526 is->audio_clock, pts);
1527 last_clock = is->audio_clock;
1533 /* free the current packet */
1535 av_free_packet(pkt);
1537 if (is->paused || is->audioq.abort_request) {
1541 /* read next packet */
1542 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1544 if(pkt->data == flush_pkt.data){
1545 avcodec_flush_buffers(is->audio_st->codec);
1549 is->audio_pkt_data = pkt->data;
1550 is->audio_pkt_size = pkt->size;
1552 /* if update the audio clock with the pts */
1553 if (pkt->pts != AV_NOPTS_VALUE) {
1554 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1559 /* get the current audio output buffer size, in samples. With SDL, we
1560 cannot have a precise information */
1561 static int audio_write_get_buf_size(VideoState *is)
1563 return is->audio_hw_buf_size - is->audio_buf_index;
1567 /* prepare a new audio buffer */
1568 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1570 VideoState *is = opaque;
1571 int audio_size, len1;
1574 audio_callback_time = av_gettime();
1577 if (is->audio_buf_index >= is->audio_buf_size) {
1578 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1579 if (audio_size < 0) {
1580 /* if error, just output silence */
1581 is->audio_buf_size = 1024;
1582 memset(is->audio_buf, 0, is->audio_buf_size);
1585 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1586 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1588 is->audio_buf_size = audio_size;
1590 is->audio_buf_index = 0;
1592 len1 = is->audio_buf_size - is->audio_buf_index;
1595 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1598 is->audio_buf_index += len1;
1602 static int video_open(VideoState *is){
1603 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1606 if (is_full_screen && fs_screen_width) {
1607 w = fs_screen_width;
1608 h = fs_screen_height;
1609 flags |= SDL_FULLSCREEN;
1614 }else if (is->video_st && is->video_st->codec->width){
1615 w = is->video_st->codec->width;
1616 h = is->video_st->codec->height;
1621 flags |= SDL_RESIZABLE;
1623 #ifndef CONFIG_DARWIN
1624 screen = SDL_SetVideoMode(w, h, 0, flags);
1626 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
1627 screen = SDL_SetVideoMode(w, h, 24, flags);
1630 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1633 SDL_WM_SetCaption("FFplay", "FFplay");
1635 is->width = screen->w;
1636 is->height = screen->h;
1641 /* open a given stream. Return 0 if OK */
1642 static int stream_component_open(VideoState *is, int stream_index)
1644 AVFormatContext *ic = is->ic;
1645 AVCodecContext *enc;
1647 SDL_AudioSpec wanted_spec, spec;
1649 if (stream_index < 0 || stream_index >= ic->nb_streams)
1651 enc = ic->streams[stream_index]->codec;
1653 /* prepare audio output */
1654 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1655 wanted_spec.freq = enc->sample_rate;
1656 wanted_spec.format = AUDIO_S16SYS;
1657 /* hack for AC3. XXX: suppress that */
1658 if (enc->channels > 2)
1660 wanted_spec.channels = enc->channels;
1661 wanted_spec.silence = 0;
1662 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1663 wanted_spec.callback = sdl_audio_callback;
1664 wanted_spec.userdata = is;
1665 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1666 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1669 is->audio_hw_buf_size = spec.size;
1672 codec = avcodec_find_decoder(enc->codec_id);
1673 enc->debug_mv = debug_mv;
1675 enc->workaround_bugs = workaround_bugs;
1676 enc->lowres = lowres;
1677 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1678 enc->idct_algo= idct;
1679 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1680 enc->skip_frame= skip_frame;
1681 enc->skip_idct= skip_idct;
1682 enc->skip_loop_filter= skip_loop_filter;
1683 enc->error_resilience= error_resilience;
1684 enc->error_concealment= error_concealment;
1686 avcodec_open(enc, codec) < 0)
1688 #if defined(HAVE_THREADS)
1690 avcodec_thread_init(enc, thread_count);
1692 enc->thread_count= thread_count;
1693 switch(enc->codec_type) {
1694 case CODEC_TYPE_AUDIO:
1695 is->audio_stream = stream_index;
1696 is->audio_st = ic->streams[stream_index];
1697 is->audio_buf_size = 0;
1698 is->audio_buf_index = 0;
1700 /* init averaging filter */
1701 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1702 is->audio_diff_avg_count = 0;
1703 /* since we do not have a precise anough audio fifo fullness,
1704 we correct audio sync only if larger than this threshold */
1705 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1707 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1708 packet_queue_init(&is->audioq);
1711 case CODEC_TYPE_VIDEO:
1712 is->video_stream = stream_index;
1713 is->video_st = ic->streams[stream_index];
1715 is->frame_last_delay = 40e-3;
1716 is->frame_timer = (double)av_gettime() / 1000000.0;
1717 is->video_current_pts_time = av_gettime();
1719 packet_queue_init(&is->videoq);
1720 is->video_tid = SDL_CreateThread(video_thread, is);
1722 case CODEC_TYPE_SUBTITLE:
1723 is->subtitle_stream = stream_index;
1724 is->subtitle_st = ic->streams[stream_index];
1725 packet_queue_init(&is->subtitleq);
1727 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1735 static void stream_component_close(VideoState *is, int stream_index)
1737 AVFormatContext *ic = is->ic;
1738 AVCodecContext *enc;
1740 if (stream_index < 0 || stream_index >= ic->nb_streams)
1742 enc = ic->streams[stream_index]->codec;
1744 switch(enc->codec_type) {
1745 case CODEC_TYPE_AUDIO:
1746 packet_queue_abort(&is->audioq);
1750 packet_queue_end(&is->audioq);
1752 case CODEC_TYPE_VIDEO:
1753 packet_queue_abort(&is->videoq);
1755 /* note: we also signal this mutex to make sure we deblock the
1756 video thread in all cases */
1757 SDL_LockMutex(is->pictq_mutex);
1758 SDL_CondSignal(is->pictq_cond);
1759 SDL_UnlockMutex(is->pictq_mutex);
1761 SDL_WaitThread(is->video_tid, NULL);
1763 packet_queue_end(&is->videoq);
1765 case CODEC_TYPE_SUBTITLE:
1766 packet_queue_abort(&is->subtitleq);
1768 /* note: we also signal this mutex to make sure we deblock the
1769 video thread in all cases */
1770 SDL_LockMutex(is->subpq_mutex);
1771 is->subtitle_stream_changed = 1;
1773 SDL_CondSignal(is->subpq_cond);
1774 SDL_UnlockMutex(is->subpq_mutex);
1776 SDL_WaitThread(is->subtitle_tid, NULL);
1778 packet_queue_end(&is->subtitleq);
1785 switch(enc->codec_type) {
1786 case CODEC_TYPE_AUDIO:
1787 is->audio_st = NULL;
1788 is->audio_stream = -1;
1790 case CODEC_TYPE_VIDEO:
1791 is->video_st = NULL;
1792 is->video_stream = -1;
1794 case CODEC_TYPE_SUBTITLE:
1795 is->subtitle_st = NULL;
1796 is->subtitle_stream = -1;
1803 static void dump_stream_info(const AVFormatContext *s)
1806 fprintf(stderr, "Track: %d\n", s->track);
1807 if (s->title[0] != '\0')
1808 fprintf(stderr, "Title: %s\n", s->title);
1809 if (s->author[0] != '\0')
1810 fprintf(stderr, "Author: %s\n", s->author);
1811 if (s->copyright[0] != '\0')
1812 fprintf(stderr, "Copyright: %s\n", s->copyright);
1813 if (s->comment[0] != '\0')
1814 fprintf(stderr, "Comment: %s\n", s->comment);
1815 if (s->album[0] != '\0')
1816 fprintf(stderr, "Album: %s\n", s->album);
1818 fprintf(stderr, "Year: %d\n", s->year);
1819 if (s->genre[0] != '\0')
1820 fprintf(stderr, "Genre: %s\n", s->genre);
1823 /* since we have only one decoding thread, we can use a global
1824 variable instead of a thread local variable */
1825 static VideoState *global_video_state;
1827 static int decode_interrupt_cb(void)
1829 return (global_video_state && global_video_state->abort_request);
1832 /* this thread gets the stream from the disk or the network */
1833 static int decode_thread(void *arg)
1835 VideoState *is = arg;
1836 AVFormatContext *ic;
1837 int err, i, ret, video_index, audio_index, use_play;
1838 AVPacket pkt1, *pkt = &pkt1;
1839 AVFormatParameters params, *ap = ¶ms;
1843 is->video_stream = -1;
1844 is->audio_stream = -1;
1845 is->subtitle_stream = -1;
1847 global_video_state = is;
1848 url_set_interrupt_cb(decode_interrupt_cb);
1850 memset(ap, 0, sizeof(*ap));
1851 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1854 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1856 print_error(is->filename, err);
1861 #ifdef CONFIG_NETWORK
1862 use_play = (ic->iformat == &rtsp_demuxer);
1868 ic->flags |= AVFMT_FLAG_GENPTS;
1871 err = av_find_stream_info(ic);
1873 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1877 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1880 /* if seeking requested, we execute it */
1881 if (start_time != AV_NOPTS_VALUE) {
1884 timestamp = start_time;
1885 /* add the stream start time */
1886 if (ic->start_time != AV_NOPTS_VALUE)
1887 timestamp += ic->start_time;
1888 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1890 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1891 is->filename, (double)timestamp / AV_TIME_BASE);
1895 /* now we can begin to play (RTSP stream only) */
1899 err = av_find_stream_info(ic);
1901 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1907 for(i = 0; i < ic->nb_streams; i++) {
1908 AVCodecContext *enc = ic->streams[i]->codec;
1909 switch(enc->codec_type) {
1910 case CODEC_TYPE_AUDIO:
1911 if (audio_index < 0 && !audio_disable)
1914 case CODEC_TYPE_VIDEO:
1915 if (video_index < 0 && !video_disable)
1923 dump_format(ic, 0, is->filename, 0);
1924 dump_stream_info(ic);
1927 /* open the streams */
1928 if (audio_index >= 0) {
1929 stream_component_open(is, audio_index);
1932 if (video_index >= 0) {
1933 stream_component_open(is, video_index);
1935 if (!display_disable)
1939 if (is->video_stream < 0 && is->audio_stream < 0) {
1940 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1946 if (is->abort_request)
1948 #ifdef CONFIG_NETWORK
1949 if (is->paused != is->last_paused) {
1950 is->last_paused = is->paused;
1956 if (is->paused && ic->iformat == &rtsp_demuxer) {
1957 /* wait 10 ms to avoid trying to get another packet */
1964 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1966 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1968 if (is->audio_stream >= 0) {
1969 packet_queue_flush(&is->audioq);
1970 packet_queue_put(&is->audioq, &flush_pkt);
1972 if (is->subtitle_stream >= 0) {
1973 packet_queue_flush(&is->subtitleq);
1974 packet_queue_put(&is->subtitleq, &flush_pkt);
1976 if (is->video_stream >= 0) {
1977 packet_queue_flush(&is->videoq);
1978 packet_queue_put(&is->videoq, &flush_pkt);
1984 /* if the queue are full, no need to read more */
1985 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1986 is->videoq.size > MAX_VIDEOQ_SIZE ||
1987 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
1988 url_feof(&ic->pb)) {
1993 ret = av_read_frame(ic, pkt);
1995 if (url_ferror(&ic->pb) == 0) {
1996 SDL_Delay(100); /* wait for user event */
2001 if (pkt->stream_index == is->audio_stream) {
2002 packet_queue_put(&is->audioq, pkt);
2003 } else if (pkt->stream_index == is->video_stream) {
2004 packet_queue_put(&is->videoq, pkt);
2005 } else if (pkt->stream_index == is->subtitle_stream) {
2006 packet_queue_put(&is->subtitleq, pkt);
2008 av_free_packet(pkt);
2011 /* wait until the end */
2012 while (!is->abort_request) {
2018 /* disable interrupting */
2019 global_video_state = NULL;
2021 /* close each stream */
2022 if (is->audio_stream >= 0)
2023 stream_component_close(is, is->audio_stream);
2024 if (is->video_stream >= 0)
2025 stream_component_close(is, is->video_stream);
2026 if (is->subtitle_stream >= 0)
2027 stream_component_close(is, is->subtitle_stream);
2029 av_close_input_file(is->ic);
2030 is->ic = NULL; /* safety */
2032 url_set_interrupt_cb(NULL);
2037 event.type = FF_QUIT_EVENT;
2038 event.user.data1 = is;
2039 SDL_PushEvent(&event);
2044 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2048 is = av_mallocz(sizeof(VideoState));
2051 pstrcpy(is->filename, sizeof(is->filename), filename);
2052 is->iformat = iformat;
2056 /* start video display */
2057 is->pictq_mutex = SDL_CreateMutex();
2058 is->pictq_cond = SDL_CreateCond();
2060 is->subpq_mutex = SDL_CreateMutex();
2061 is->subpq_cond = SDL_CreateCond();
2063 /* add the refresh timer to draw the picture */
2064 schedule_refresh(is, 40);
2066 is->av_sync_type = av_sync_type;
2067 is->parse_tid = SDL_CreateThread(decode_thread, is);
2068 if (!is->parse_tid) {
2075 static void stream_close(VideoState *is)
2079 /* XXX: use a special url_shutdown call to abort parse cleanly */
2080 is->abort_request = 1;
2081 SDL_WaitThread(is->parse_tid, NULL);
2083 /* free all pictures */
2084 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2087 SDL_FreeYUVOverlay(vp->bmp);
2091 SDL_DestroyMutex(is->pictq_mutex);
2092 SDL_DestroyCond(is->pictq_cond);
2093 SDL_DestroyMutex(is->subpq_mutex);
2094 SDL_DestroyCond(is->subpq_cond);
2097 static void stream_cycle_channel(VideoState *is, int codec_type)
2099 AVFormatContext *ic = is->ic;
2100 int start_index, stream_index;
2103 if (codec_type == CODEC_TYPE_VIDEO)
2104 start_index = is->video_stream;
2105 else if (codec_type == CODEC_TYPE_AUDIO)
2106 start_index = is->audio_stream;
2108 start_index = is->subtitle_stream;
2109 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2111 stream_index = start_index;
2113 if (++stream_index >= is->ic->nb_streams)
2115 if (codec_type == CODEC_TYPE_SUBTITLE)
2122 if (stream_index == start_index)
2124 st = ic->streams[stream_index];
2125 if (st->codec->codec_type == codec_type) {
2126 /* check that parameters are OK */
2127 switch(codec_type) {
2128 case CODEC_TYPE_AUDIO:
2129 if (st->codec->sample_rate != 0 &&
2130 st->codec->channels != 0)
2133 case CODEC_TYPE_VIDEO:
2134 case CODEC_TYPE_SUBTITLE:
2142 stream_component_close(is, start_index);
2143 stream_component_open(is, stream_index);
2147 static void toggle_full_screen(void)
2149 is_full_screen = !is_full_screen;
2150 if (!fs_screen_width) {
2151 /* use default SDL method */
2152 SDL_WM_ToggleFullScreen(screen);
2154 /* use the recorded resolution */
2155 video_open(cur_stream);
2159 static void toggle_pause(void)
2162 stream_pause(cur_stream);
2166 static void step_to_next_frame(void)
2169 if (cur_stream->paused)
2170 cur_stream->paused=0;
2171 cur_stream->video_current_pts = get_video_clock(cur_stream);
2176 static void do_exit(void)
2179 stream_close(cur_stream);
2188 static void toggle_audio_display(void)
2191 cur_stream->show_audio = !cur_stream->show_audio;
2195 /* handle an event sent by the GUI */
2196 static void event_loop(void)
2199 double incr, pos, frac;
2202 SDL_WaitEvent(&event);
2203 switch(event.type) {
2205 switch(event.key.keysym.sym) {
2211 toggle_full_screen();
2217 case SDLK_s: //S: Step to next frame
2218 step_to_next_frame();
2222 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2226 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2230 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2233 toggle_audio_display();
2248 if (seek_by_bytes) {
2249 pos = url_ftell(&cur_stream->ic->pb);
2250 if (cur_stream->ic->bit_rate)
2251 incr *= cur_stream->ic->bit_rate / 60.0;
2255 stream_seek(cur_stream, pos, incr);
2257 pos = get_master_clock(cur_stream);
2259 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2267 case SDL_MOUSEBUTTONDOWN:
2270 int tns, thh, tmm, tss;
2271 tns = cur_stream->ic->duration/1000000LL;
2273 tmm = (tns%3600)/60;
2275 frac = (double)event.button.x/(double)cur_stream->width;
2280 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2281 hh, mm, ss, thh, tmm, tss);
2282 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2285 case SDL_VIDEORESIZE:
2287 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2288 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2289 cur_stream->width = event.resize.w;
2290 cur_stream->height = event.resize.h;
2297 case FF_ALLOC_EVENT:
2298 video_open(event.user.data1);
2299 alloc_picture(event.user.data1);
2301 case FF_REFRESH_EVENT:
2302 video_refresh_timer(event.user.data1);
2310 void opt_width(const char *arg)
2312 screen_width = atoi(arg);
2315 void opt_height(const char *arg)
2317 screen_height = atoi(arg);
2320 static void opt_format(const char *arg)
2322 file_iformat = av_find_input_format(arg);
2323 if (!file_iformat) {
2324 fprintf(stderr, "Unknown input format: %s\n", arg);
2329 #ifdef CONFIG_NETWORK
2330 void opt_rtp_tcp(void)
2332 /* only tcp protocol */
2333 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2337 void opt_sync(const char *arg)
2339 if (!strcmp(arg, "audio"))
2340 av_sync_type = AV_SYNC_AUDIO_MASTER;
2341 else if (!strcmp(arg, "video"))
2342 av_sync_type = AV_SYNC_VIDEO_MASTER;
2343 else if (!strcmp(arg, "ext"))
2344 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2349 void opt_seek(const char *arg)
2351 start_time = parse_date(arg, 1);
2354 static void opt_debug(const char *arg)
2356 av_log_set_level(99);
2360 static void opt_vismv(const char *arg)
2362 debug_mv = atoi(arg);
2365 static void opt_thread_count(const char *arg)
2367 thread_count= atoi(arg);
2368 #if !defined(HAVE_THREADS)
2369 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2373 const OptionDef options[] = {
2374 { "h", 0, {(void*)show_help}, "show help" },
2375 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2376 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2377 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2378 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2379 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2380 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2381 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2382 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2383 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2384 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2385 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2386 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2387 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2388 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2389 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2390 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2391 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2392 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2393 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2394 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2395 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2396 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2397 #ifdef CONFIG_NETWORK
2398 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2400 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2401 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2405 void show_help(void)
2407 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2006 Fabrice Bellard, et al.\n"
2408 "usage: ffplay [options] input_file\n"
2409 "Simple media player\n");
2411 show_help_options(options, "Main options:\n",
2413 show_help_options(options, "\nAdvanced options:\n",
2414 OPT_EXPERT, OPT_EXPERT);
2415 printf("\nWhile playing:\n"
2417 "f toggle full screen\n"
2419 "a cycle audio channel\n"
2420 "v cycle video channel\n"
2421 "t cycle subtitle channel\n"
2422 "w show audio waves\n"
2423 "left/right seek backward/forward 10 seconds\n"
2424 "down/up seek backward/forward 1 minute\n"
2425 "mouse click seek to percentage in file corresponding to fraction of width\n"
2430 void parse_arg_file(const char *filename)
2432 if (!strcmp(filename, "-"))
2434 input_filename = filename;
2437 /* Called from the main */
2438 int main(int argc, char **argv)
2442 /* register all codecs, demux and protocols */
2446 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2448 // Make stdout and stderr unbuffered
2449 setbuf( stdout, NULL );
2450 setbuf( stderr, NULL );
2453 parse_options(argc, argv, options);
2455 if (!input_filename)
2458 if (display_disable) {
2461 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2462 #if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
2463 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
2465 if (SDL_Init (flags)) {
2466 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2470 if (!display_disable) {
2471 #ifdef HAVE_SDL_VIDEO_SIZE
2472 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2473 fs_screen_width = vi->current_w;
2474 fs_screen_height = vi->current_h;
2478 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2479 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2480 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2481 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2483 av_init_packet(&flush_pkt);
2484 flush_pkt.data= "FLUSH";
2486 cur_stream = stream_open(input_filename, file_iformat);