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 SDL_mutex *video_decoder_mutex;
175 SDL_mutex *audio_decoder_mutex;
176 SDL_mutex *subtitle_decoder_mutex;
178 // QETimer *video_timer;
180 int width, height, xleft, ytop;
183 void show_help(void);
184 static int audio_write_get_buf_size(VideoState *is);
186 /* options specified by the user */
187 static AVInputFormat *file_iformat;
188 static const char *input_filename;
189 static int fs_screen_width;
190 static int fs_screen_height;
191 static int screen_width = 640;
192 static int screen_height = 480;
193 static int audio_disable;
194 static int video_disable;
195 static int display_disable;
196 static int show_status;
197 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
198 static int64_t start_time = AV_NOPTS_VALUE;
199 static int debug = 0;
200 static int debug_mv = 0;
202 static int thread_count = 1;
203 static int workaround_bugs = 1;
205 static int genpts = 0;
206 static int lowres = 0;
207 static int idct = FF_IDCT_AUTO;
208 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
209 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
210 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
211 static int error_resilience = FF_ER_CAREFUL;
212 static int error_concealment = 3;
214 /* current context */
215 static int is_full_screen;
216 static VideoState *cur_stream;
217 static int64_t audio_callback_time;
219 #define FF_ALLOC_EVENT (SDL_USEREVENT)
220 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
221 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
225 /* packet queue handling */
226 static void packet_queue_init(PacketQueue *q)
228 memset(q, 0, sizeof(PacketQueue));
229 q->mutex = SDL_CreateMutex();
230 q->cond = SDL_CreateCond();
233 static void packet_queue_flush(PacketQueue *q)
235 AVPacketList *pkt, *pkt1;
237 SDL_LockMutex(q->mutex);
238 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
240 av_free_packet(&pkt->pkt);
247 SDL_UnlockMutex(q->mutex);
250 static void packet_queue_end(PacketQueue *q)
252 packet_queue_flush(q);
253 SDL_DestroyMutex(q->mutex);
254 SDL_DestroyCond(q->cond);
257 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
261 /* duplicate the packet */
262 if (av_dup_packet(pkt) < 0)
265 pkt1 = av_malloc(sizeof(AVPacketList));
272 SDL_LockMutex(q->mutex);
278 q->last_pkt->next = pkt1;
281 q->size += pkt1->pkt.size;
282 /* XXX: should duplicate packet data in DV case */
283 SDL_CondSignal(q->cond);
285 SDL_UnlockMutex(q->mutex);
289 static void packet_queue_abort(PacketQueue *q)
291 SDL_LockMutex(q->mutex);
293 q->abort_request = 1;
295 SDL_CondSignal(q->cond);
297 SDL_UnlockMutex(q->mutex);
300 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
301 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
306 SDL_LockMutex(q->mutex);
309 if (q->abort_request) {
316 q->first_pkt = pkt1->next;
320 q->size -= pkt1->pkt.size;
329 SDL_CondWait(q->cond, q->mutex);
332 SDL_UnlockMutex(q->mutex);
336 static inline void fill_rectangle(SDL_Surface *screen,
337 int x, int y, int w, int h, int color)
344 SDL_FillRect(screen, &rect, color);
348 /* draw only the border of a rectangle */
349 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
353 /* fill the background */
357 w2 = s->width - (x + w);
363 h2 = s->height - (y + h);
366 fill_rectangle(screen,
370 fill_rectangle(screen,
371 s->xleft + s->width - w2, s->ytop,
374 fill_rectangle(screen,
375 s->xleft + w1, s->ytop,
376 s->width - w1 - w2, h1,
378 fill_rectangle(screen,
379 s->xleft + w1, s->ytop + s->height - h2,
380 s->width - w1 - w2, h2,
388 #define ONE_HALF (1 << (SCALEBITS - 1))
389 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
391 #define RGB_TO_Y_CCIR(r, g, b) \
392 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
393 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
395 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
396 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
397 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
399 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
400 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
401 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
403 #define ALPHA_BLEND(a, oldp, newp, s)\
404 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
406 #define RGBA_IN(r, g, b, a, s)\
408 unsigned int v = ((const uint32_t *)(s))[0];\
409 a = (v >> 24) & 0xff;\
410 r = (v >> 16) & 0xff;\
411 g = (v >> 8) & 0xff;\
415 #define YUVA_IN(y, u, v, a, s, pal)\
417 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)s];\
418 a = (val >> 24) & 0xff;\
419 y = (val >> 16) & 0xff;\
420 u = (val >> 8) & 0xff;\
424 #define YUVA_OUT(d, y, u, v, a)\
426 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
432 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect)
434 int wrap, wrap3, width2, skip2;
435 int y, u, v, a, u1, v1, a1, w, h;
436 uint8_t *lum, *cb, *cr;
440 lum = dst->data[0] + rect->y * dst->linesize[0];
441 cb = dst->data[1] + (rect->y >> 1) * dst->linesize[1];
442 cr = dst->data[2] + (rect->y >> 1) * dst->linesize[2];
444 width2 = (rect->w + 1) >> 1;
445 skip2 = rect->x >> 1;
446 wrap = dst->linesize[0];
447 wrap3 = rect->linesize;
449 pal = rect->rgba_palette; /* Now in YCrCb! */
457 YUVA_IN(y, u, v, a, p, pal);
458 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
459 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
460 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
466 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
467 YUVA_IN(y, u, v, a, p, pal);
471 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
473 YUVA_IN(y, u, v, a, p + BPP, pal);
477 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
478 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
479 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
486 YUVA_IN(y, u, v, a, p, pal);
487 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
488 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
489 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
491 p += wrap3 + (wrap3 - rect->w * BPP);
492 lum += wrap + (wrap - rect->w - rect->x);
493 cb += dst->linesize[1] - width2 - skip2;
494 cr += dst->linesize[2] - width2 - skip2;
496 for(h = rect->h - (rect->y & 1); h >= 2; h -= 2) {
502 YUVA_IN(y, u, v, a, p, pal);
506 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
509 YUVA_IN(y, u, v, a, p, pal);
513 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
514 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
515 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
521 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
522 YUVA_IN(y, u, v, a, p, pal);
526 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
528 YUVA_IN(y, u, v, a, p, pal);
532 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
536 YUVA_IN(y, u, v, a, p, pal);
540 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
542 YUVA_IN(y, u, v, a, p, pal);
546 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
548 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
549 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
553 p += -wrap3 + 2 * BPP;
557 YUVA_IN(y, u, v, a, p, pal);
561 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
564 YUVA_IN(y, u, v, a, p, pal);
568 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
570 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
576 p += wrap3 + (wrap3 - rect->w * BPP);
577 lum += wrap + (wrap - rect->w - rect->x);
578 cb += dst->linesize[1] - width2 - skip2;
579 cr += dst->linesize[2] - width2 - skip2;
581 /* handle odd height */
588 YUVA_IN(y, u, v, a, p, pal);
589 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
590 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
591 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
597 for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
598 YUVA_IN(y, u, v, a, p, pal);
602 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
604 YUVA_IN(y, u, v, a, p + BPP, pal);
608 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
609 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
610 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
617 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
619 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
620 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
625 static void free_subpicture(SubPicture *sp)
629 for (i = 0; i < sp->sub.num_rects; i++)
631 av_free(sp->sub.rects[i].bitmap);
632 av_free(sp->sub.rects[i].rgba_palette);
635 av_free(sp->sub.rects);
637 memset(&sp->sub, 0, sizeof(AVSubtitle));
640 static void video_image_display(VideoState *is)
646 int width, height, x, y;
650 vp = &is->pictq[is->pictq_rindex];
652 /* XXX: use variable in the frame */
653 if (is->video_st->codec->sample_aspect_ratio.num == 0)
656 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
657 * is->video_st->codec->width / is->video_st->codec->height;;
658 if (aspect_ratio <= 0.0)
659 aspect_ratio = (float)is->video_st->codec->width /
660 (float)is->video_st->codec->height;
661 /* if an active format is indicated, then it overrides the
664 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
665 is->dtg_active_format = is->video_st->codec->dtg_active_format;
666 printf("dtg_active_format=%d\n", is->dtg_active_format);
670 switch(is->video_st->codec->dtg_active_format) {
671 case FF_DTG_AFD_SAME:
676 aspect_ratio = 4.0 / 3.0;
678 case FF_DTG_AFD_16_9:
679 aspect_ratio = 16.0 / 9.0;
681 case FF_DTG_AFD_14_9:
682 aspect_ratio = 14.0 / 9.0;
684 case FF_DTG_AFD_4_3_SP_14_9:
685 aspect_ratio = 14.0 / 9.0;
687 case FF_DTG_AFD_16_9_SP_14_9:
688 aspect_ratio = 14.0 / 9.0;
690 case FF_DTG_AFD_SP_4_3:
691 aspect_ratio = 4.0 / 3.0;
698 if (is->subpq_size > 0)
700 sp = &is->subpq[is->subpq_rindex];
702 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
704 SDL_LockYUVOverlay (vp->bmp);
706 pict.data[0] = vp->bmp->pixels[0];
707 pict.data[1] = vp->bmp->pixels[2];
708 pict.data[2] = vp->bmp->pixels[1];
710 pict.linesize[0] = vp->bmp->pitches[0];
711 pict.linesize[1] = vp->bmp->pitches[2];
712 pict.linesize[2] = vp->bmp->pitches[1];
714 for (i = 0; i < sp->sub.num_rects; i++)
715 blend_subrect(&pict, &sp->sub.rects[i]);
717 SDL_UnlockYUVOverlay (vp->bmp);
723 /* XXX: we suppose the screen has a 1.0 pixel ratio */
725 width = ((int)rint(height * aspect_ratio)) & -3;
726 if (width > is->width) {
728 height = ((int)rint(width / aspect_ratio)) & -3;
730 x = (is->width - width) / 2;
731 y = (is->height - height) / 2;
732 if (!is->no_background) {
733 /* fill the background */
734 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
736 is->no_background = 0;
738 rect.x = is->xleft + x;
739 rect.y = is->xleft + y;
742 SDL_DisplayYUVOverlay(vp->bmp, &rect);
745 fill_rectangle(screen,
746 is->xleft, is->ytop, is->width, is->height,
747 QERGB(0x00, 0x00, 0x00));
752 static inline int compute_mod(int a, int b)
761 static void video_audio_display(VideoState *s)
763 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
764 int ch, channels, h, h2, bgcolor, fgcolor;
767 /* compute display index : center on currently output samples */
768 channels = s->audio_st->codec->channels;
769 nb_display_channels = channels;
772 delay = audio_write_get_buf_size(s);
775 /* to be more precise, we take into account the time spent since
776 the last buffer computation */
777 if (audio_callback_time) {
778 time_diff = av_gettime() - audio_callback_time;
779 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
782 delay -= s->width / 2;
783 if (delay < s->width)
785 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
786 s->last_i_start = i_start;
788 i_start = s->last_i_start;
791 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
792 fill_rectangle(screen,
793 s->xleft, s->ytop, s->width, s->height,
796 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
798 /* total height for one channel */
799 h = s->height / nb_display_channels;
800 /* graph height / 2 */
802 for(ch = 0;ch < nb_display_channels; ch++) {
804 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
805 for(x = 0; x < s->width; x++) {
806 y = (s->sample_array[i] * h2) >> 15;
813 fill_rectangle(screen,
814 s->xleft + x, ys, 1, y,
817 if (i >= SAMPLE_ARRAY_SIZE)
818 i -= SAMPLE_ARRAY_SIZE;
822 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
824 for(ch = 1;ch < nb_display_channels; ch++) {
825 y = s->ytop + ch * h;
826 fill_rectangle(screen,
827 s->xleft, y, s->width, 1,
830 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
833 /* display the current picture, if any */
834 static void video_display(VideoState *is)
836 if (is->audio_st && is->show_audio)
837 video_audio_display(is);
838 else if (is->video_st)
839 video_image_display(is);
842 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
845 event.type = FF_REFRESH_EVENT;
846 event.user.data1 = opaque;
847 SDL_PushEvent(&event);
848 return 0; /* 0 means stop timer */
851 /* schedule a video refresh in 'delay' ms */
852 static void schedule_refresh(VideoState *is, int delay)
854 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
857 /* get the current audio clock value */
858 static double get_audio_clock(VideoState *is)
861 int hw_buf_size, bytes_per_sec;
862 pts = is->audio_clock;
863 hw_buf_size = audio_write_get_buf_size(is);
866 bytes_per_sec = is->audio_st->codec->sample_rate *
867 2 * is->audio_st->codec->channels;
870 pts -= (double)hw_buf_size / bytes_per_sec;
874 /* get the current video clock value */
875 static double get_video_clock(VideoState *is)
881 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
883 return is->video_current_pts + delta;
886 /* get the current external clock value */
887 static double get_external_clock(VideoState *is)
891 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
894 /* get the current master clock value */
895 static double get_master_clock(VideoState *is)
899 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
901 val = get_video_clock(is);
903 val = get_audio_clock(is);
904 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
906 val = get_audio_clock(is);
908 val = get_video_clock(is);
910 val = get_external_clock(is);
915 /* seek in the stream */
916 static void stream_seek(VideoState *is, int64_t pos, int rel)
920 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
925 /* pause or resume the video */
926 static void stream_pause(VideoState *is)
928 is->paused = !is->paused;
930 is->video_current_pts = get_video_clock(is);
934 /* called to display each frame */
935 static void video_refresh_timer(void *opaque)
937 VideoState *is = opaque;
939 double actual_delay, delay, sync_threshold, ref_clock, diff;
941 SubPicture *sp, *sp2;
944 if (is->pictq_size == 0) {
945 /* if no picture, need to wait */
946 schedule_refresh(is, 1);
948 /* dequeue the picture */
949 vp = &is->pictq[is->pictq_rindex];
951 /* update current video pts */
952 is->video_current_pts = vp->pts;
953 is->video_current_pts_time = av_gettime();
955 /* compute nominal delay */
956 delay = vp->pts - is->frame_last_pts;
957 if (delay <= 0 || delay >= 1.0) {
958 /* if incorrect delay, use previous one */
959 delay = is->frame_last_delay;
961 is->frame_last_delay = delay;
962 is->frame_last_pts = vp->pts;
964 /* update delay to follow master synchronisation source */
965 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
966 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
967 /* if video is slave, we try to correct big delays by
968 duplicating or deleting a frame */
969 ref_clock = get_master_clock(is);
970 diff = vp->pts - ref_clock;
972 /* skip or repeat frame. We take into account the
973 delay to compute the threshold. I still don't know
974 if it is the best guess */
975 sync_threshold = AV_SYNC_THRESHOLD;
976 if (delay > sync_threshold)
977 sync_threshold = delay;
978 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
979 if (diff <= -sync_threshold)
981 else if (diff >= sync_threshold)
986 is->frame_timer += delay;
987 /* compute the REAL delay (we need to do that to avoid
989 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
990 if (actual_delay < 0.010) {
991 /* XXX: should skip picture */
992 actual_delay = 0.010;
994 /* launch timer for next picture */
995 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
997 #if defined(DEBUG_SYNC)
998 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
999 delay, actual_delay, vp->pts, -diff);
1002 if(is->subtitle_st) {
1003 if (is->subtitle_stream_changed) {
1004 SDL_LockMutex(is->subpq_mutex);
1006 while (is->subpq_size) {
1007 free_subpicture(&is->subpq[is->subpq_rindex]);
1009 /* update queue size and signal for next picture */
1010 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1011 is->subpq_rindex = 0;
1015 is->subtitle_stream_changed = 0;
1017 SDL_CondSignal(is->subpq_cond);
1018 SDL_UnlockMutex(is->subpq_mutex);
1020 if (is->subpq_size > 0) {
1021 sp = &is->subpq[is->subpq_rindex];
1023 if (is->subpq_size > 1)
1024 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1028 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1029 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1031 free_subpicture(sp);
1033 /* update queue size and signal for next picture */
1034 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1035 is->subpq_rindex = 0;
1037 SDL_LockMutex(is->subpq_mutex);
1039 SDL_CondSignal(is->subpq_cond);
1040 SDL_UnlockMutex(is->subpq_mutex);
1046 /* display picture */
1049 /* update queue size and signal for next picture */
1050 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1051 is->pictq_rindex = 0;
1053 SDL_LockMutex(is->pictq_mutex);
1055 SDL_CondSignal(is->pictq_cond);
1056 SDL_UnlockMutex(is->pictq_mutex);
1058 } else if (is->audio_st) {
1059 /* draw the next audio frame */
1061 schedule_refresh(is, 40);
1063 /* if only audio stream, then display the audio bars (better
1064 than nothing, just to test the implementation */
1066 /* display picture */
1069 schedule_refresh(is, 100);
1072 static int64_t last_time;
1074 int aqsize, vqsize, sqsize;
1077 cur_time = av_gettime();
1078 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1083 aqsize = is->audioq.size;
1085 vqsize = is->videoq.size;
1086 if (is->subtitle_st)
1087 sqsize = is->subtitleq.size;
1089 if (is->audio_st && is->video_st)
1090 av_diff = get_audio_clock(is) - get_video_clock(is);
1091 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1092 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1094 last_time = cur_time;
1099 /* allocate a picture (needs to do that in main thread to avoid
1100 potential locking problems */
1101 static void alloc_picture(void *opaque)
1103 VideoState *is = opaque;
1106 vp = &is->pictq[is->pictq_windex];
1109 SDL_FreeYUVOverlay(vp->bmp);
1112 /* XXX: use generic function */
1113 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1114 switch(is->video_st->codec->pix_fmt) {
1115 case PIX_FMT_YUV420P:
1116 case PIX_FMT_YUV422P:
1117 case PIX_FMT_YUV444P:
1118 case PIX_FMT_YUV422:
1119 case PIX_FMT_YUV410P:
1120 case PIX_FMT_YUV411P:
1128 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1129 is->video_st->codec->height,
1132 vp->width = is->video_st->codec->width;
1133 vp->height = is->video_st->codec->height;
1135 SDL_LockMutex(is->pictq_mutex);
1137 SDL_CondSignal(is->pictq_cond);
1138 SDL_UnlockMutex(is->pictq_mutex);
1143 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1145 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1150 static struct SwsContext *img_convert_ctx;
1152 /* wait until we have space to put a new picture */
1153 SDL_LockMutex(is->pictq_mutex);
1154 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1155 !is->videoq.abort_request) {
1156 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1158 SDL_UnlockMutex(is->pictq_mutex);
1160 if (is->videoq.abort_request)
1163 vp = &is->pictq[is->pictq_windex];
1165 /* alloc or resize hardware picture buffer */
1167 vp->width != is->video_st->codec->width ||
1168 vp->height != is->video_st->codec->height) {
1173 /* the allocation must be done in the main thread to avoid
1175 event.type = FF_ALLOC_EVENT;
1176 event.user.data1 = is;
1177 SDL_PushEvent(&event);
1179 /* wait until the picture is allocated */
1180 SDL_LockMutex(is->pictq_mutex);
1181 while (!vp->allocated && !is->videoq.abort_request) {
1182 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1184 SDL_UnlockMutex(is->pictq_mutex);
1186 if (is->videoq.abort_request)
1190 /* if the frame is not skipped, then display it */
1192 /* get a pointer on the bitmap */
1193 SDL_LockYUVOverlay (vp->bmp);
1195 dst_pix_fmt = PIX_FMT_YUV420P;
1196 pict.data[0] = vp->bmp->pixels[0];
1197 pict.data[1] = vp->bmp->pixels[2];
1198 pict.data[2] = vp->bmp->pixels[1];
1200 pict.linesize[0] = vp->bmp->pitches[0];
1201 pict.linesize[1] = vp->bmp->pitches[2];
1202 pict.linesize[2] = vp->bmp->pitches[1];
1203 if (img_convert_ctx == NULL) {
1204 img_convert_ctx = sws_getContext(is->video_st->codec->width,
1205 is->video_st->codec->height, is->video_st->codec->pix_fmt,
1206 is->video_st->codec->width, is->video_st->codec->height,
1207 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1208 if (img_convert_ctx == NULL) {
1209 fprintf(stderr, "Cannot initialize the conversion context\n");
1213 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1214 0, is->video_st->codec->height, pict.data, pict.linesize);
1215 /* update the bitmap content */
1216 SDL_UnlockYUVOverlay(vp->bmp);
1220 /* now we can update the picture count */
1221 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1222 is->pictq_windex = 0;
1223 SDL_LockMutex(is->pictq_mutex);
1225 SDL_UnlockMutex(is->pictq_mutex);
1231 * compute the exact PTS for the picture if it is omitted in the stream
1232 * @param pts1 the dts of the pkt / pts of the frame
1234 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1236 double frame_delay, pts;
1241 /* update video clock with pts, if present */
1242 is->video_clock = pts;
1244 pts = is->video_clock;
1246 /* update video clock for next frame */
1247 frame_delay = av_q2d(is->video_st->codec->time_base);
1248 /* for MPEG2, the frame can be repeated, so we update the
1249 clock accordingly */
1250 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1251 is->video_clock += frame_delay;
1253 #if defined(DEBUG_SYNC) && 0
1256 if (src_frame->pict_type == FF_B_TYPE)
1258 else if (src_frame->pict_type == FF_I_TYPE)
1262 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1266 return queue_picture(is, src_frame, pts);
1269 static int video_thread(void *arg)
1271 VideoState *is = arg;
1272 AVPacket pkt1, *pkt = &pkt1;
1273 int len1, got_picture;
1274 AVFrame *frame= avcodec_alloc_frame();
1278 while (is->paused && !is->videoq.abort_request) {
1281 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1283 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1284 this packet, if any */
1286 if (pkt->dts != AV_NOPTS_VALUE)
1287 pts = av_q2d(is->video_st->time_base)*pkt->dts;
1289 SDL_LockMutex(is->video_decoder_mutex);
1290 len1 = avcodec_decode_video(is->video_st->codec,
1291 frame, &got_picture,
1292 pkt->data, pkt->size);
1293 SDL_UnlockMutex(is->video_decoder_mutex);
1297 if (output_picture2(is, frame, pts) < 0)
1300 av_free_packet(pkt);
1303 stream_pause(cur_stream);
1310 static int subtitle_thread(void *arg)
1312 VideoState *is = arg;
1314 AVPacket pkt1, *pkt = &pkt1;
1315 int len1, got_subtitle;
1318 int r, g, b, y, u, v, a;
1321 while (is->paused && !is->subtitleq.abort_request) {
1324 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1327 SDL_LockMutex(is->subpq_mutex);
1328 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1329 !is->subtitleq.abort_request) {
1330 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1332 SDL_UnlockMutex(is->subpq_mutex);
1334 if (is->subtitleq.abort_request)
1337 sp = &is->subpq[is->subpq_windex];
1339 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1340 this packet, if any */
1342 if (pkt->pts != AV_NOPTS_VALUE)
1343 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1345 SDL_LockMutex(is->subtitle_decoder_mutex);
1346 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1347 &sp->sub, &got_subtitle,
1348 pkt->data, pkt->size);
1349 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1352 if (got_subtitle && sp->sub.format == 0) {
1355 for (i = 0; i < sp->sub.num_rects; i++)
1357 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1359 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1360 y = RGB_TO_Y_CCIR(r, g, b);
1361 u = RGB_TO_U_CCIR(r, g, b, 0);
1362 v = RGB_TO_V_CCIR(r, g, b, 0);
1363 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1367 /* now we can update the picture count */
1368 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1369 is->subpq_windex = 0;
1370 SDL_LockMutex(is->subpq_mutex);
1372 SDL_UnlockMutex(is->subpq_mutex);
1374 av_free_packet(pkt);
1377 // stream_pause(cur_stream);
1383 /* copy samples for viewing in editor window */
1384 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1386 int size, len, channels;
1388 channels = is->audio_st->codec->channels;
1390 size = samples_size / sizeof(short);
1392 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1395 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1397 is->sample_array_index += len;
1398 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1399 is->sample_array_index = 0;
1404 /* return the new audio buffer size (samples can be added or deleted
1405 to get better sync if video or external master clock) */
1406 static int synchronize_audio(VideoState *is, short *samples,
1407 int samples_size1, double pts)
1409 int n, samples_size;
1412 n = 2 * is->audio_st->codec->channels;
1413 samples_size = samples_size1;
1415 /* if not master, then we try to remove or add samples to correct the clock */
1416 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1417 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1418 double diff, avg_diff;
1419 int wanted_size, min_size, max_size, nb_samples;
1421 ref_clock = get_master_clock(is);
1422 diff = get_audio_clock(is) - ref_clock;
1424 if (diff < AV_NOSYNC_THRESHOLD) {
1425 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1426 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1427 /* not enough measures to have a correct estimate */
1428 is->audio_diff_avg_count++;
1430 /* estimate the A-V difference */
1431 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1433 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1434 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1435 nb_samples = samples_size / n;
1437 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1438 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1439 if (wanted_size < min_size)
1440 wanted_size = min_size;
1441 else if (wanted_size > max_size)
1442 wanted_size = max_size;
1444 /* add or remove samples to correction the synchro */
1445 if (wanted_size < samples_size) {
1446 /* remove samples */
1447 samples_size = wanted_size;
1448 } else if (wanted_size > samples_size) {
1449 uint8_t *samples_end, *q;
1453 nb = (samples_size - wanted_size);
1454 samples_end = (uint8_t *)samples + samples_size - n;
1455 q = samples_end + n;
1457 memcpy(q, samples_end, n);
1461 samples_size = wanted_size;
1465 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1466 diff, avg_diff, samples_size - samples_size1,
1467 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1471 /* too big difference : may be initial PTS errors, so
1473 is->audio_diff_avg_count = 0;
1474 is->audio_diff_cum = 0;
1478 return samples_size;
1481 /* decode one audio frame and returns its uncompressed size */
1482 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1484 AVPacket *pkt = &is->audio_pkt;
1485 int n, len1, data_size;
1489 /* NOTE: the audio packet can contain several frames */
1490 while (is->audio_pkt_size > 0) {
1491 SDL_LockMutex(is->audio_decoder_mutex);
1492 len1 = avcodec_decode_audio(is->audio_st->codec,
1493 (int16_t *)audio_buf, &data_size,
1494 is->audio_pkt_data, is->audio_pkt_size);
1495 SDL_UnlockMutex(is->audio_decoder_mutex);
1497 /* if error, we skip the frame */
1498 is->audio_pkt_size = 0;
1502 is->audio_pkt_data += len1;
1503 is->audio_pkt_size -= len1;
1506 /* if no pts, then compute it */
1507 pts = is->audio_clock;
1509 n = 2 * is->audio_st->codec->channels;
1510 is->audio_clock += (double)data_size /
1511 (double)(n * is->audio_st->codec->sample_rate);
1512 #if defined(DEBUG_SYNC)
1514 static double last_clock;
1515 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1516 is->audio_clock - last_clock,
1517 is->audio_clock, pts);
1518 last_clock = is->audio_clock;
1524 /* free the current packet */
1526 av_free_packet(pkt);
1528 if (is->paused || is->audioq.abort_request) {
1532 /* read next packet */
1533 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1535 is->audio_pkt_data = pkt->data;
1536 is->audio_pkt_size = pkt->size;
1538 /* if update the audio clock with the pts */
1539 if (pkt->pts != AV_NOPTS_VALUE) {
1540 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1545 /* get the current audio output buffer size, in samples. With SDL, we
1546 cannot have a precise information */
1547 static int audio_write_get_buf_size(VideoState *is)
1549 return is->audio_hw_buf_size - is->audio_buf_index;
1553 /* prepare a new audio buffer */
1554 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1556 VideoState *is = opaque;
1557 int audio_size, len1;
1560 audio_callback_time = av_gettime();
1563 if (is->audio_buf_index >= is->audio_buf_size) {
1564 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1565 if (audio_size < 0) {
1566 /* if error, just output silence */
1567 is->audio_buf_size = 1024;
1568 memset(is->audio_buf, 0, is->audio_buf_size);
1571 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1572 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1574 is->audio_buf_size = audio_size;
1576 is->audio_buf_index = 0;
1578 len1 = is->audio_buf_size - is->audio_buf_index;
1581 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1584 is->audio_buf_index += len1;
1589 /* open a given stream. Return 0 if OK */
1590 static int stream_component_open(VideoState *is, int stream_index)
1592 AVFormatContext *ic = is->ic;
1593 AVCodecContext *enc;
1595 SDL_AudioSpec wanted_spec, spec;
1597 if (stream_index < 0 || stream_index >= ic->nb_streams)
1599 enc = ic->streams[stream_index]->codec;
1601 /* prepare audio output */
1602 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1603 wanted_spec.freq = enc->sample_rate;
1604 wanted_spec.format = AUDIO_S16SYS;
1605 /* hack for AC3. XXX: suppress that */
1606 if (enc->channels > 2)
1608 wanted_spec.channels = enc->channels;
1609 wanted_spec.silence = 0;
1610 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1611 wanted_spec.callback = sdl_audio_callback;
1612 wanted_spec.userdata = is;
1613 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1614 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1617 is->audio_hw_buf_size = spec.size;
1620 codec = avcodec_find_decoder(enc->codec_id);
1621 enc->debug_mv = debug_mv;
1623 enc->workaround_bugs = workaround_bugs;
1624 enc->lowres = lowres;
1625 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1626 enc->idct_algo= idct;
1627 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1628 enc->skip_frame= skip_frame;
1629 enc->skip_idct= skip_idct;
1630 enc->skip_loop_filter= skip_loop_filter;
1631 enc->error_resilience= error_resilience;
1632 enc->error_concealment= error_concealment;
1634 avcodec_open(enc, codec) < 0)
1636 #if defined(HAVE_THREADS)
1638 avcodec_thread_init(enc, thread_count);
1640 enc->thread_count= thread_count;
1641 switch(enc->codec_type) {
1642 case CODEC_TYPE_AUDIO:
1643 is->audio_stream = stream_index;
1644 is->audio_st = ic->streams[stream_index];
1645 is->audio_buf_size = 0;
1646 is->audio_buf_index = 0;
1648 /* init averaging filter */
1649 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1650 is->audio_diff_avg_count = 0;
1651 /* since we do not have a precise anough audio fifo fullness,
1652 we correct audio sync only if larger than this threshold */
1653 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1655 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1656 packet_queue_init(&is->audioq);
1659 case CODEC_TYPE_VIDEO:
1660 is->video_stream = stream_index;
1661 is->video_st = ic->streams[stream_index];
1663 is->frame_last_delay = 40e-3;
1664 is->frame_timer = (double)av_gettime() / 1000000.0;
1665 is->video_current_pts_time = av_gettime();
1667 packet_queue_init(&is->videoq);
1668 is->video_tid = SDL_CreateThread(video_thread, is);
1670 case CODEC_TYPE_SUBTITLE:
1671 is->subtitle_stream = stream_index;
1672 is->subtitle_st = ic->streams[stream_index];
1673 packet_queue_init(&is->subtitleq);
1675 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1683 static void stream_component_close(VideoState *is, int stream_index)
1685 AVFormatContext *ic = is->ic;
1686 AVCodecContext *enc;
1688 if (stream_index < 0 || stream_index >= ic->nb_streams)
1690 enc = ic->streams[stream_index]->codec;
1692 switch(enc->codec_type) {
1693 case CODEC_TYPE_AUDIO:
1694 packet_queue_abort(&is->audioq);
1698 packet_queue_end(&is->audioq);
1700 case CODEC_TYPE_VIDEO:
1701 packet_queue_abort(&is->videoq);
1703 /* note: we also signal this mutex to make sure we deblock the
1704 video thread in all cases */
1705 SDL_LockMutex(is->pictq_mutex);
1706 SDL_CondSignal(is->pictq_cond);
1707 SDL_UnlockMutex(is->pictq_mutex);
1709 SDL_WaitThread(is->video_tid, NULL);
1711 packet_queue_end(&is->videoq);
1713 case CODEC_TYPE_SUBTITLE:
1714 packet_queue_abort(&is->subtitleq);
1716 /* note: we also signal this mutex to make sure we deblock the
1717 video thread in all cases */
1718 SDL_LockMutex(is->subpq_mutex);
1719 is->subtitle_stream_changed = 1;
1721 SDL_CondSignal(is->subpq_cond);
1722 SDL_UnlockMutex(is->subpq_mutex);
1724 SDL_WaitThread(is->subtitle_tid, NULL);
1726 packet_queue_end(&is->subtitleq);
1733 switch(enc->codec_type) {
1734 case CODEC_TYPE_AUDIO:
1735 is->audio_st = NULL;
1736 is->audio_stream = -1;
1738 case CODEC_TYPE_VIDEO:
1739 is->video_st = NULL;
1740 is->video_stream = -1;
1742 case CODEC_TYPE_SUBTITLE:
1743 is->subtitle_st = NULL;
1744 is->subtitle_stream = -1;
1751 static void dump_stream_info(const AVFormatContext *s)
1754 fprintf(stderr, "Track: %d\n", s->track);
1755 if (s->title[0] != '\0')
1756 fprintf(stderr, "Title: %s\n", s->title);
1757 if (s->author[0] != '\0')
1758 fprintf(stderr, "Author: %s\n", s->author);
1759 if (s->copyright[0] != '\0')
1760 fprintf(stderr, "Copyright: %s\n", s->copyright);
1761 if (s->comment[0] != '\0')
1762 fprintf(stderr, "Comment: %s\n", s->comment);
1763 if (s->album[0] != '\0')
1764 fprintf(stderr, "Album: %s\n", s->album);
1766 fprintf(stderr, "Year: %d\n", s->year);
1767 if (s->genre[0] != '\0')
1768 fprintf(stderr, "Genre: %s\n", s->genre);
1771 /* since we have only one decoding thread, we can use a global
1772 variable instead of a thread local variable */
1773 static VideoState *global_video_state;
1775 static int decode_interrupt_cb(void)
1777 return (global_video_state && global_video_state->abort_request);
1780 /* this thread gets the stream from the disk or the network */
1781 static int decode_thread(void *arg)
1783 VideoState *is = arg;
1784 AVFormatContext *ic;
1785 int err, i, ret, video_index, audio_index, use_play;
1786 AVPacket pkt1, *pkt = &pkt1;
1787 AVFormatParameters params, *ap = ¶ms;
1791 is->video_stream = -1;
1792 is->audio_stream = -1;
1793 is->subtitle_stream = -1;
1795 global_video_state = is;
1796 url_set_interrupt_cb(decode_interrupt_cb);
1798 memset(ap, 0, sizeof(*ap));
1799 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1802 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1804 print_error(is->filename, err);
1809 #ifdef CONFIG_NETWORK
1810 use_play = (ic->iformat == &rtsp_demuxer);
1816 ic->flags |= AVFMT_FLAG_GENPTS;
1819 err = av_find_stream_info(ic);
1821 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1825 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1828 /* if seeking requested, we execute it */
1829 if (start_time != AV_NOPTS_VALUE) {
1832 timestamp = start_time;
1833 /* add the stream start time */
1834 if (ic->start_time != AV_NOPTS_VALUE)
1835 timestamp += ic->start_time;
1836 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1838 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1839 is->filename, (double)timestamp / AV_TIME_BASE);
1843 /* now we can begin to play (RTSP stream only) */
1847 err = av_find_stream_info(ic);
1849 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1855 for(i = 0; i < ic->nb_streams; i++) {
1856 AVCodecContext *enc = ic->streams[i]->codec;
1857 switch(enc->codec_type) {
1858 case CODEC_TYPE_AUDIO:
1859 if (audio_index < 0 && !audio_disable)
1862 case CODEC_TYPE_VIDEO:
1863 if (video_index < 0 && !video_disable)
1871 dump_format(ic, 0, is->filename, 0);
1872 dump_stream_info(ic);
1875 /* open the streams */
1876 if (audio_index >= 0) {
1877 stream_component_open(is, audio_index);
1880 if (video_index >= 0) {
1881 stream_component_open(is, video_index);
1883 if (!display_disable)
1887 if (is->video_stream < 0 && is->audio_stream < 0) {
1888 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1894 if (is->abort_request)
1896 #ifdef CONFIG_NETWORK
1897 if (is->paused != is->last_paused) {
1898 is->last_paused = is->paused;
1904 if (is->paused && ic->iformat == &rtsp_demuxer) {
1905 /* wait 10 ms to avoid trying to get another packet */
1912 /* XXX: must lock decoder threads */
1913 SDL_LockMutex(is->video_decoder_mutex);
1914 SDL_LockMutex(is->audio_decoder_mutex);
1915 SDL_LockMutex(is->subtitle_decoder_mutex);
1916 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1918 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1920 if (is->audio_stream >= 0) {
1921 packet_queue_flush(&is->audioq);
1923 if (is->subtitle_stream >= 0) {
1924 packet_queue_flush(&is->subtitleq);
1926 if (is->video_stream >= 0) {
1927 packet_queue_flush(&is->videoq);
1928 avcodec_flush_buffers(ic->streams[video_index]->codec);
1931 SDL_UnlockMutex(is->subtitle_decoder_mutex);
1932 SDL_UnlockMutex(is->audio_decoder_mutex);
1933 SDL_UnlockMutex(is->video_decoder_mutex);
1937 /* if the queue are full, no need to read more */
1938 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1939 is->videoq.size > MAX_VIDEOQ_SIZE ||
1940 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
1941 url_feof(&ic->pb)) {
1946 ret = av_read_frame(ic, pkt);
1948 if (url_ferror(&ic->pb) == 0) {
1949 SDL_Delay(100); /* wait for user event */
1954 if (pkt->stream_index == is->audio_stream) {
1955 packet_queue_put(&is->audioq, pkt);
1956 } else if (pkt->stream_index == is->video_stream) {
1957 packet_queue_put(&is->videoq, pkt);
1958 } else if (pkt->stream_index == is->subtitle_stream) {
1959 packet_queue_put(&is->subtitleq, pkt);
1961 av_free_packet(pkt);
1964 /* wait until the end */
1965 while (!is->abort_request) {
1971 /* disable interrupting */
1972 global_video_state = NULL;
1974 /* close each stream */
1975 if (is->audio_stream >= 0)
1976 stream_component_close(is, is->audio_stream);
1977 if (is->video_stream >= 0)
1978 stream_component_close(is, is->video_stream);
1979 if (is->subtitle_stream >= 0)
1980 stream_component_close(is, is->subtitle_stream);
1982 av_close_input_file(is->ic);
1983 is->ic = NULL; /* safety */
1985 url_set_interrupt_cb(NULL);
1990 event.type = FF_QUIT_EVENT;
1991 event.user.data1 = is;
1992 SDL_PushEvent(&event);
1997 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2001 is = av_mallocz(sizeof(VideoState));
2004 pstrcpy(is->filename, sizeof(is->filename), filename);
2005 is->iformat = iformat;
2007 is->width = screen->w;
2008 is->height = screen->h;
2013 /* start video display */
2014 is->pictq_mutex = SDL_CreateMutex();
2015 is->pictq_cond = SDL_CreateCond();
2017 is->subpq_mutex = SDL_CreateMutex();
2018 is->subpq_cond = SDL_CreateCond();
2020 is->subtitle_decoder_mutex = SDL_CreateMutex();
2021 is->audio_decoder_mutex = SDL_CreateMutex();
2022 is->video_decoder_mutex = SDL_CreateMutex();
2024 /* add the refresh timer to draw the picture */
2025 schedule_refresh(is, 40);
2027 is->av_sync_type = av_sync_type;
2028 is->parse_tid = SDL_CreateThread(decode_thread, is);
2029 if (!is->parse_tid) {
2036 static void stream_close(VideoState *is)
2040 /* XXX: use a special url_shutdown call to abort parse cleanly */
2041 is->abort_request = 1;
2042 SDL_WaitThread(is->parse_tid, NULL);
2044 /* free all pictures */
2045 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2048 SDL_FreeYUVOverlay(vp->bmp);
2052 SDL_DestroyMutex(is->pictq_mutex);
2053 SDL_DestroyCond(is->pictq_cond);
2054 SDL_DestroyMutex(is->subpq_mutex);
2055 SDL_DestroyCond(is->subpq_cond);
2056 SDL_DestroyMutex(is->subtitle_decoder_mutex);
2057 SDL_DestroyMutex(is->audio_decoder_mutex);
2058 SDL_DestroyMutex(is->video_decoder_mutex);
2061 static void stream_cycle_channel(VideoState *is, int codec_type)
2063 AVFormatContext *ic = is->ic;
2064 int start_index, stream_index;
2067 if (codec_type == CODEC_TYPE_VIDEO)
2068 start_index = is->video_stream;
2069 else if (codec_type == CODEC_TYPE_AUDIO)
2070 start_index = is->audio_stream;
2072 start_index = is->subtitle_stream;
2073 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2075 stream_index = start_index;
2077 if (++stream_index >= is->ic->nb_streams)
2079 if (codec_type == CODEC_TYPE_SUBTITLE)
2086 if (stream_index == start_index)
2088 st = ic->streams[stream_index];
2089 if (st->codec->codec_type == codec_type) {
2090 /* check that parameters are OK */
2091 switch(codec_type) {
2092 case CODEC_TYPE_AUDIO:
2093 if (st->codec->sample_rate != 0 &&
2094 st->codec->channels != 0)
2097 case CODEC_TYPE_VIDEO:
2098 case CODEC_TYPE_SUBTITLE:
2106 stream_component_close(is, start_index);
2107 stream_component_open(is, stream_index);
2111 static void toggle_full_screen(void)
2114 is_full_screen = !is_full_screen;
2115 if (!fs_screen_width) {
2116 /* use default SDL method */
2117 SDL_WM_ToggleFullScreen(screen);
2119 /* use the recorded resolution */
2120 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2121 if (is_full_screen) {
2122 w = fs_screen_width;
2123 h = fs_screen_height;
2124 flags |= SDL_FULLSCREEN;
2128 flags |= SDL_RESIZABLE;
2130 screen = SDL_SetVideoMode(w, h, 0, flags);
2131 cur_stream->width = w;
2132 cur_stream->height = h;
2136 static void toggle_pause(void)
2139 stream_pause(cur_stream);
2143 static void step_to_next_frame(void)
2146 if (cur_stream->paused)
2147 cur_stream->paused=0;
2148 cur_stream->video_current_pts = get_video_clock(cur_stream);
2153 static void do_exit(void)
2156 stream_close(cur_stream);
2165 static void toggle_audio_display(void)
2168 cur_stream->show_audio = !cur_stream->show_audio;
2172 /* handle an event sent by the GUI */
2173 static void event_loop(void)
2176 double incr, pos, frac;
2179 SDL_WaitEvent(&event);
2180 switch(event.type) {
2182 switch(event.key.keysym.sym) {
2188 toggle_full_screen();
2194 case SDLK_s: //S: Step to next frame
2195 step_to_next_frame();
2199 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2203 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2207 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2210 toggle_audio_display();
2225 pos = get_master_clock(cur_stream);
2227 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2234 case SDL_MOUSEBUTTONDOWN:
2237 int tns, thh, tmm, tss;
2238 tns = cur_stream->ic->duration/1000000LL;
2240 tmm = (tns%3600)/60;
2242 frac = (double)event.button.x/(double)cur_stream->width;
2247 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2248 hh, mm, ss, thh, tmm, tss);
2249 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2252 case SDL_VIDEORESIZE:
2254 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2255 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2256 cur_stream->width = event.resize.w;
2257 cur_stream->height = event.resize.h;
2264 case FF_ALLOC_EVENT:
2265 alloc_picture(event.user.data1);
2267 case FF_REFRESH_EVENT:
2268 video_refresh_timer(event.user.data1);
2276 void opt_width(const char *arg)
2278 screen_width = atoi(arg);
2281 void opt_height(const char *arg)
2283 screen_height = atoi(arg);
2286 static void opt_format(const char *arg)
2288 file_iformat = av_find_input_format(arg);
2289 if (!file_iformat) {
2290 fprintf(stderr, "Unknown input format: %s\n", arg);
2295 #ifdef CONFIG_NETWORK
2296 void opt_rtp_tcp(void)
2298 /* only tcp protocol */
2299 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
2303 void opt_sync(const char *arg)
2305 if (!strcmp(arg, "audio"))
2306 av_sync_type = AV_SYNC_AUDIO_MASTER;
2307 else if (!strcmp(arg, "video"))
2308 av_sync_type = AV_SYNC_VIDEO_MASTER;
2309 else if (!strcmp(arg, "ext"))
2310 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2315 void opt_seek(const char *arg)
2317 start_time = parse_date(arg, 1);
2320 static void opt_debug(const char *arg)
2322 av_log_set_level(99);
2326 static void opt_vismv(const char *arg)
2328 debug_mv = atoi(arg);
2331 static void opt_thread_count(const char *arg)
2333 thread_count= atoi(arg);
2334 #if !defined(HAVE_THREADS)
2335 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2339 const OptionDef options[] = {
2340 { "h", 0, {(void*)show_help}, "show help" },
2341 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2342 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2343 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2344 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2345 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2346 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2347 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2348 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2349 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2350 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2351 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2352 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2353 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2354 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2355 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2356 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2357 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2358 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2359 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2360 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2361 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2362 #ifdef CONFIG_NETWORK
2363 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
2365 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2366 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2370 void show_help(void)
2372 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2006 Fabrice Bellard, et al.\n"
2373 "usage: ffplay [options] input_file\n"
2374 "Simple media player\n");
2376 show_help_options(options, "Main options:\n",
2378 show_help_options(options, "\nAdvanced options:\n",
2379 OPT_EXPERT, OPT_EXPERT);
2380 printf("\nWhile playing:\n"
2382 "f toggle full screen\n"
2384 "a cycle audio channel\n"
2385 "v cycle video channel\n"
2386 "t cycle subtitle channel\n"
2387 "w show audio waves\n"
2388 "left/right seek backward/forward 10 seconds\n"
2389 "down/up seek backward/forward 1 minute\n"
2390 "mouse click seek to percentage in file corresponding to fraction of width\n"
2395 void parse_arg_file(const char *filename)
2397 if (!strcmp(filename, "-"))
2399 input_filename = filename;
2402 /* Called from the main */
2403 int main(int argc, char **argv)
2407 /* register all codecs, demux and protocols */
2411 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
2413 // Make stdout and stderr unbuffered
2414 setbuf( stdout, NULL );
2415 setbuf( stderr, NULL );
2418 parse_options(argc, argv, options);
2420 if (!input_filename)
2423 if (display_disable) {
2426 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2427 #if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
2428 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
2430 if (SDL_Init (flags)) {
2431 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2435 if (!display_disable) {
2436 #ifdef HAVE_SDL_VIDEO_SIZE
2437 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2438 fs_screen_width = vi->current_w;
2439 fs_screen_height = vi->current_h;
2441 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
2442 if (is_full_screen && fs_screen_width) {
2443 w = fs_screen_width;
2444 h = fs_screen_height;
2445 flags |= SDL_FULLSCREEN;
2449 flags |= SDL_RESIZABLE;
2451 #ifndef CONFIG_DARWIN
2452 screen = SDL_SetVideoMode(w, h, 0, flags);
2454 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
2455 screen = SDL_SetVideoMode(w, h, 24, flags);
2458 fprintf(stderr, "SDL: could not set video mode - exiting\n");
2461 SDL_WM_SetCaption("FFplay", "FFplay");
2464 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2465 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2466 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2467 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2469 cur_stream = stream_open(input_filename, file_iformat);