vhook watermark patch by (Marcus Engene: ffmpeg, engene se)
[libav.git] / ffplay.c
1 /*
2 * FFplay : Simple Media Player based on the ffmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19 #define HAVE_AV_CONFIG_H
20 #include "avformat.h"
21
22 #include "cmdutils.h"
23
24 #include <SDL.h>
25 #include <SDL_thread.h>
26
27 #ifdef CONFIG_WIN32
28 #undef main /* We don't want SDL to override our main() */
29 #endif
30
31 #ifdef CONFIG_OS2
32 #define INCL_DOS
33 #include <os2.h>
34 #include <stdio.h>
35
36 void MorphToPM()
37 {
38 PPIB pib;
39 PTIB tib;
40
41 DosGetInfoBlocks(&tib, &pib);
42
43 // Change flag from VIO to PM:
44 if (pib->pib_ultype==2) pib->pib_ultype = 3;
45 }
46 #endif
47
48 #if defined(__linux__)
49 #define HAVE_X11
50 #endif
51
52 #ifdef HAVE_X11
53 #include <X11/Xlib.h>
54 #endif
55
56 //#define DEBUG_SYNC
57
58 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
59 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
60
61 /* SDL audio buffer size, in samples. Should be small to have precise
62 A/V sync as SDL does not have hardware buffer fullness info. */
63 #define SDL_AUDIO_BUFFER_SIZE 1024
64
65 /* no AV sync correction is done if below the AV sync threshold */
66 #define AV_SYNC_THRESHOLD 0.01
67 /* no AV correction is done if too big error */
68 #define AV_NOSYNC_THRESHOLD 10.0
69
70 /* maximum audio speed change to get correct sync */
71 #define SAMPLE_CORRECTION_PERCENT_MAX 10
72
73 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
74 #define AUDIO_DIFF_AVG_NB 20
75
76 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
77 #define SAMPLE_ARRAY_SIZE (2*65536)
78
79 typedef struct PacketQueue {
80 AVPacketList *first_pkt, *last_pkt;
81 int nb_packets;
82 int size;
83 int abort_request;
84 SDL_mutex *mutex;
85 SDL_cond *cond;
86 } PacketQueue;
87
88 #define VIDEO_PICTURE_QUEUE_SIZE 1
89
90 typedef struct VideoPicture {
91 double pts; /* presentation time stamp for this picture */
92 SDL_Overlay *bmp;
93 int width, height; /* source height & width */
94 int allocated;
95 } VideoPicture;
96
97 enum {
98 AV_SYNC_AUDIO_MASTER, /* default choice */
99 AV_SYNC_VIDEO_MASTER,
100 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
101 };
102
103 typedef struct VideoState {
104 SDL_Thread *parse_tid;
105 SDL_Thread *video_tid;
106 AVInputFormat *iformat;
107 int no_background;
108 int abort_request;
109 int paused;
110 int last_paused;
111 int seek_req;
112 int seek_flags;
113 int64_t seek_pos;
114 AVFormatContext *ic;
115 int dtg_active_format;
116
117 int audio_stream;
118
119 int av_sync_type;
120 double external_clock; /* external clock base */
121 int64_t external_clock_time;
122
123 double audio_clock;
124 double audio_diff_cum; /* used for AV difference average computation */
125 double audio_diff_avg_coef;
126 double audio_diff_threshold;
127 int audio_diff_avg_count;
128 AVStream *audio_st;
129 PacketQueue audioq;
130 int audio_hw_buf_size;
131 /* samples output by the codec. we reserve more space for avsync
132 compensation */
133 uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
134 unsigned int audio_buf_size; /* in bytes */
135 int audio_buf_index; /* in bytes */
136 AVPacket audio_pkt;
137 uint8_t *audio_pkt_data;
138 int audio_pkt_size;
139
140 int show_audio; /* if true, display audio samples */
141 int16_t sample_array[SAMPLE_ARRAY_SIZE];
142 int sample_array_index;
143 int last_i_start;
144
145 double frame_timer;
146 double frame_last_pts;
147 double frame_last_delay;
148 double video_clock;
149 int video_stream;
150 AVStream *video_st;
151 PacketQueue videoq;
152 double video_last_P_pts; /* pts of the last P picture (needed if B
153 frames are present) */
154 double video_current_pts; /* current displayed pts (different from
155 video_clock if frame fifos are used) */
156 int64_t video_current_pts_time; /* time at which we updated
157 video_current_pts - used to
158 have running video pts */
159 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
160 int pictq_size, pictq_rindex, pictq_windex;
161 SDL_mutex *pictq_mutex;
162 SDL_cond *pictq_cond;
163
164 SDL_mutex *video_decoder_mutex;
165 SDL_mutex *audio_decoder_mutex;
166
167 // QETimer *video_timer;
168 char filename[1024];
169 int width, height, xleft, ytop;
170 } VideoState;
171
172 void show_help(void);
173 static int audio_write_get_buf_size(VideoState *is);
174
175 /* options specified by the user */
176 static AVInputFormat *file_iformat;
177 static AVImageFormat *image_format;
178 static const char *input_filename;
179 static int fs_screen_width;
180 static int fs_screen_height;
181 static int screen_width = 640;
182 static int screen_height = 480;
183 static int audio_disable;
184 static int video_disable;
185 static int display_disable;
186 static int show_status;
187 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
188 static int64_t start_time = AV_NOPTS_VALUE;
189 static int debug = 0;
190 static int debug_mv = 0;
191 static int step = 0;
192 static int thread_count = 1;
193 static int workaround_bugs = 1;
194 static int fast = 0;
195 static int lowres = 0;
196 static int idct = FF_IDCT_AUTO;
197
198 /* current context */
199 static int is_full_screen;
200 static VideoState *cur_stream;
201 static int64_t audio_callback_time;
202
203 #define FF_ALLOC_EVENT (SDL_USEREVENT)
204 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
205 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
206
207 SDL_Surface *screen;
208
209 /* packet queue handling */
210 static void packet_queue_init(PacketQueue *q)
211 {
212 memset(q, 0, sizeof(PacketQueue));
213 q->mutex = SDL_CreateMutex();
214 q->cond = SDL_CreateCond();
215 }
216
217 static void packet_queue_flush(PacketQueue *q)
218 {
219 AVPacketList *pkt, *pkt1;
220
221 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
222 pkt1 = pkt->next;
223 av_free_packet(&pkt->pkt);
224 av_freep(&pkt);
225 }
226 q->last_pkt = NULL;
227 q->first_pkt = NULL;
228 q->nb_packets = 0;
229 q->size = 0;
230 }
231
232 static void packet_queue_end(PacketQueue *q)
233 {
234 packet_queue_flush(q);
235 SDL_DestroyMutex(q->mutex);
236 SDL_DestroyCond(q->cond);
237 }
238
239 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
240 {
241 AVPacketList *pkt1;
242
243 /* duplicate the packet */
244 if (av_dup_packet(pkt) < 0)
245 return -1;
246
247 pkt1 = av_malloc(sizeof(AVPacketList));
248 if (!pkt1)
249 return -1;
250 pkt1->pkt = *pkt;
251 pkt1->next = NULL;
252
253
254 SDL_LockMutex(q->mutex);
255
256 if (!q->last_pkt)
257
258 q->first_pkt = pkt1;
259 else
260 q->last_pkt->next = pkt1;
261 q->last_pkt = pkt1;
262 q->nb_packets++;
263 q->size += pkt1->pkt.size;
264 /* XXX: should duplicate packet data in DV case */
265 SDL_CondSignal(q->cond);
266
267 SDL_UnlockMutex(q->mutex);
268 return 0;
269 }
270
271 static void packet_queue_abort(PacketQueue *q)
272 {
273 SDL_LockMutex(q->mutex);
274
275 q->abort_request = 1;
276
277 SDL_CondSignal(q->cond);
278
279 SDL_UnlockMutex(q->mutex);
280 }
281
282 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
283 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
284 {
285 AVPacketList *pkt1;
286 int ret;
287
288 SDL_LockMutex(q->mutex);
289
290 for(;;) {
291 if (q->abort_request) {
292 ret = -1;
293 break;
294 }
295
296 pkt1 = q->first_pkt;
297 if (pkt1) {
298 q->first_pkt = pkt1->next;
299 if (!q->first_pkt)
300 q->last_pkt = NULL;
301 q->nb_packets--;
302 q->size -= pkt1->pkt.size;
303 *pkt = pkt1->pkt;
304 av_free(pkt1);
305 ret = 1;
306 break;
307 } else if (!block) {
308 ret = 0;
309 break;
310 } else {
311 SDL_CondWait(q->cond, q->mutex);
312 }
313 }
314 SDL_UnlockMutex(q->mutex);
315 return ret;
316 }
317
318 static inline void fill_rectangle(SDL_Surface *screen,
319 int x, int y, int w, int h, int color)
320 {
321 SDL_Rect rect;
322 rect.x = x;
323 rect.y = y;
324 rect.w = w;
325 rect.h = h;
326 SDL_FillRect(screen, &rect, color);
327 }
328
329 #if 0
330 /* draw only the border of a rectangle */
331 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
332 {
333 int w1, w2, h1, h2;
334
335 /* fill the background */
336 w1 = x;
337 if (w1 < 0)
338 w1 = 0;
339 w2 = s->width - (x + w);
340 if (w2 < 0)
341 w2 = 0;
342 h1 = y;
343 if (h1 < 0)
344 h1 = 0;
345 h2 = s->height - (y + h);
346 if (h2 < 0)
347 h2 = 0;
348 fill_rectangle(screen,
349 s->xleft, s->ytop,
350 w1, s->height,
351 color);
352 fill_rectangle(screen,
353 s->xleft + s->width - w2, s->ytop,
354 w2, s->height,
355 color);
356 fill_rectangle(screen,
357 s->xleft + w1, s->ytop,
358 s->width - w1 - w2, h1,
359 color);
360 fill_rectangle(screen,
361 s->xleft + w1, s->ytop + s->height - h2,
362 s->width - w1 - w2, h2,
363 color);
364 }
365 #endif
366
367 static void video_image_display(VideoState *is)
368 {
369 VideoPicture *vp;
370 float aspect_ratio;
371 int width, height, x, y;
372 SDL_Rect rect;
373
374 vp = &is->pictq[is->pictq_rindex];
375 if (vp->bmp) {
376 /* XXX: use variable in the frame */
377 if (is->video_st->codec.sample_aspect_ratio.num == 0)
378 aspect_ratio = 0;
379 else
380 aspect_ratio = av_q2d(is->video_st->codec.sample_aspect_ratio)
381 * is->video_st->codec.width / is->video_st->codec.height;;
382 if (aspect_ratio <= 0.0)
383 aspect_ratio = (float)is->video_st->codec.width /
384 (float)is->video_st->codec.height;
385 /* if an active format is indicated, then it overrides the
386 mpeg format */
387 #if 0
388 if (is->video_st->codec.dtg_active_format != is->dtg_active_format) {
389 is->dtg_active_format = is->video_st->codec.dtg_active_format;
390 printf("dtg_active_format=%d\n", is->dtg_active_format);
391 }
392 #endif
393 #if 0
394 switch(is->video_st->codec.dtg_active_format) {
395 case FF_DTG_AFD_SAME:
396 default:
397 /* nothing to do */
398 break;
399 case FF_DTG_AFD_4_3:
400 aspect_ratio = 4.0 / 3.0;
401 break;
402 case FF_DTG_AFD_16_9:
403 aspect_ratio = 16.0 / 9.0;
404 break;
405 case FF_DTG_AFD_14_9:
406 aspect_ratio = 14.0 / 9.0;
407 break;
408 case FF_DTG_AFD_4_3_SP_14_9:
409 aspect_ratio = 14.0 / 9.0;
410 break;
411 case FF_DTG_AFD_16_9_SP_14_9:
412 aspect_ratio = 14.0 / 9.0;
413 break;
414 case FF_DTG_AFD_SP_4_3:
415 aspect_ratio = 4.0 / 3.0;
416 break;
417 }
418 #endif
419
420 /* XXX: we suppose the screen has a 1.0 pixel ratio */
421 height = is->height;
422 width = ((int)rint(height * aspect_ratio)) & -3;
423 if (width > is->width) {
424 width = is->width;
425 height = ((int)rint(width / aspect_ratio)) & -3;
426 }
427 x = (is->width - width) / 2;
428 y = (is->height - height) / 2;
429 if (!is->no_background) {
430 /* fill the background */
431 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
432 } else {
433 is->no_background = 0;
434 }
435 rect.x = is->xleft + x;
436 rect.y = is->xleft + y;
437 rect.w = width;
438 rect.h = height;
439 SDL_DisplayYUVOverlay(vp->bmp, &rect);
440 } else {
441 #if 0
442 fill_rectangle(screen,
443 is->xleft, is->ytop, is->width, is->height,
444 QERGB(0x00, 0x00, 0x00));
445 #endif
446 }
447 }
448
449 static inline int compute_mod(int a, int b)
450 {
451 a = a % b;
452 if (a >= 0)
453 return a;
454 else
455 return a + b;
456 }
457
458 static void video_audio_display(VideoState *s)
459 {
460 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
461 int ch, channels, h, h2, bgcolor, fgcolor;
462 int16_t time_diff;
463
464 /* compute display index : center on currently output samples */
465 channels = s->audio_st->codec.channels;
466 nb_display_channels = channels;
467 if (!s->paused) {
468 n = 2 * channels;
469 delay = audio_write_get_buf_size(s);
470 delay /= n;
471
472 /* to be more precise, we take into account the time spent since
473 the last buffer computation */
474 if (audio_callback_time) {
475 time_diff = av_gettime() - audio_callback_time;
476 delay += (time_diff * s->audio_st->codec.sample_rate) / 1000000;
477 }
478
479 delay -= s->width / 2;
480 if (delay < s->width)
481 delay = s->width;
482 i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
483 s->last_i_start = i_start;
484 } else {
485 i_start = s->last_i_start;
486 }
487
488 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
489 fill_rectangle(screen,
490 s->xleft, s->ytop, s->width, s->height,
491 bgcolor);
492
493 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
494
495 /* total height for one channel */
496 h = s->height / nb_display_channels;
497 /* graph height / 2 */
498 h2 = (h * 9) / 20;
499 for(ch = 0;ch < nb_display_channels; ch++) {
500 i = i_start + ch;
501 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
502 for(x = 0; x < s->width; x++) {
503 y = (s->sample_array[i] * h2) >> 15;
504 if (y < 0) {
505 y = -y;
506 ys = y1 - y;
507 } else {
508 ys = y1;
509 }
510 fill_rectangle(screen,
511 s->xleft + x, ys, 1, y,
512 fgcolor);
513 i += channels;
514 if (i >= SAMPLE_ARRAY_SIZE)
515 i -= SAMPLE_ARRAY_SIZE;
516 }
517 }
518
519 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
520
521 for(ch = 1;ch < nb_display_channels; ch++) {
522 y = s->ytop + ch * h;
523 fill_rectangle(screen,
524 s->xleft, y, s->width, 1,
525 fgcolor);
526 }
527 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
528 }
529
530 /* display the current picture, if any */
531 static void video_display(VideoState *is)
532 {
533 if (is->audio_st && is->show_audio)
534 video_audio_display(is);
535 else if (is->video_st)
536 video_image_display(is);
537 }
538
539 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
540 {
541 SDL_Event event;
542 event.type = FF_REFRESH_EVENT;
543 event.user.data1 = opaque;
544 SDL_PushEvent(&event);
545 return 0; /* 0 means stop timer */
546 }
547
548 /* schedule a video refresh in 'delay' ms */
549 static void schedule_refresh(VideoState *is, int delay)
550 {
551 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
552 }
553
554 /* get the current audio clock value */
555 static double get_audio_clock(VideoState *is)
556 {
557 double pts;
558 int hw_buf_size, bytes_per_sec;
559 pts = is->audio_clock;
560 hw_buf_size = audio_write_get_buf_size(is);
561 bytes_per_sec = 0;
562 if (is->audio_st) {
563 bytes_per_sec = is->audio_st->codec.sample_rate *
564 2 * is->audio_st->codec.channels;
565 }
566 if (bytes_per_sec)
567 pts -= (double)hw_buf_size / bytes_per_sec;
568 return pts;
569 }
570
571 /* get the current video clock value */
572 static double get_video_clock(VideoState *is)
573 {
574 double delta;
575 if (is->paused) {
576 delta = 0;
577 } else {
578 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
579 }
580 return is->video_current_pts + delta;
581 }
582
583 /* get the current external clock value */
584 static double get_external_clock(VideoState *is)
585 {
586 int64_t ti;
587 ti = av_gettime();
588 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
589 }
590
591 /* get the current master clock value */
592 static double get_master_clock(VideoState *is)
593 {
594 double val;
595
596 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
597 if (is->video_st)
598 val = get_video_clock(is);
599 else
600 val = get_audio_clock(is);
601 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
602 if (is->audio_st)
603 val = get_audio_clock(is);
604 else
605 val = get_video_clock(is);
606 } else {
607 val = get_external_clock(is);
608 }
609 return val;
610 }
611
612 /* seek in the stream */
613 static void stream_seek(VideoState *is, int64_t pos, int rel)
614 {
615 is->seek_pos = pos;
616 is->seek_req = 1;
617 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
618 }
619
620 /* pause or resume the video */
621 static void stream_pause(VideoState *is)
622 {
623 is->paused = !is->paused;
624 if (is->paused) {
625 is->video_current_pts = get_video_clock(is);
626 }
627 }
628
629 /* called to display each frame */
630 static void video_refresh_timer(void *opaque)
631 {
632 VideoState *is = opaque;
633 VideoPicture *vp;
634 double actual_delay, delay, sync_threshold, ref_clock, diff;
635
636
637 if (is->video_st) {
638 if (is->pictq_size == 0) {
639 /* if no picture, need to wait */
640 schedule_refresh(is, 1);
641 } else {
642 /* dequeue the picture */
643 vp = &is->pictq[is->pictq_rindex];
644
645 /* update current video pts */
646 is->video_current_pts = vp->pts;
647 is->video_current_pts_time = av_gettime();
648
649 /* compute nominal delay */
650 delay = vp->pts - is->frame_last_pts;
651 if (delay <= 0 || delay >= 1.0) {
652 /* if incorrect delay, use previous one */
653 delay = is->frame_last_delay;
654 }
655 is->frame_last_delay = delay;
656 is->frame_last_pts = vp->pts;
657
658 /* update delay to follow master synchronisation source */
659 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
660 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
661 /* if video is slave, we try to correct big delays by
662 duplicating or deleting a frame */
663 ref_clock = get_master_clock(is);
664 diff = vp->pts - ref_clock;
665
666 /* skip or repeat frame. We take into account the
667 delay to compute the threshold. I still don't know
668 if it is the best guess */
669 sync_threshold = AV_SYNC_THRESHOLD;
670 if (delay > sync_threshold)
671 sync_threshold = delay;
672 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
673 if (diff <= -sync_threshold)
674 delay = 0;
675 else if (diff >= sync_threshold)
676 delay = 2 * delay;
677 }
678 }
679
680 is->frame_timer += delay;
681 /* compute the REAL delay (we need to do that to avoid
682 long term errors */
683 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
684 if (actual_delay < 0.010) {
685 /* XXX: should skip picture */
686 actual_delay = 0.010;
687 }
688 /* launch timer for next picture */
689 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
690
691 #if defined(DEBUG_SYNC)
692 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
693 delay, actual_delay, vp->pts, -diff);
694 #endif
695
696 /* display picture */
697 video_display(is);
698
699 /* update queue size and signal for next picture */
700 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
701 is->pictq_rindex = 0;
702
703 SDL_LockMutex(is->pictq_mutex);
704 is->pictq_size--;
705 SDL_CondSignal(is->pictq_cond);
706 SDL_UnlockMutex(is->pictq_mutex);
707 }
708 } else if (is->audio_st) {
709 /* draw the next audio frame */
710
711 schedule_refresh(is, 40);
712
713 /* if only audio stream, then display the audio bars (better
714 than nothing, just to test the implementation */
715
716 /* display picture */
717 video_display(is);
718 } else {
719 schedule_refresh(is, 100);
720 }
721 if (show_status) {
722 static int64_t last_time;
723 int64_t cur_time;
724 int aqsize, vqsize;
725 double av_diff;
726
727 cur_time = av_gettime();
728 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
729 aqsize = 0;
730 vqsize = 0;
731 if (is->audio_st)
732 aqsize = is->audioq.size;
733 if (is->video_st)
734 vqsize = is->videoq.size;
735 av_diff = 0;
736 if (is->audio_st && is->video_st)
737 av_diff = get_audio_clock(is) - get_video_clock(is);
738 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB \r",
739 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024);
740 fflush(stdout);
741 last_time = cur_time;
742 }
743 }
744 }
745
746 /* allocate a picture (needs to do that in main thread to avoid
747 potential locking problems */
748 static void alloc_picture(void *opaque)
749 {
750 VideoState *is = opaque;
751 VideoPicture *vp;
752
753 vp = &is->pictq[is->pictq_windex];
754
755 if (vp->bmp)
756 SDL_FreeYUVOverlay(vp->bmp);
757
758 #if 0
759 /* XXX: use generic function */
760 /* XXX: disable overlay if no hardware acceleration or if RGB format */
761 switch(is->video_st->codec.pix_fmt) {
762 case PIX_FMT_YUV420P:
763 case PIX_FMT_YUV422P:
764 case PIX_FMT_YUV444P:
765 case PIX_FMT_YUV422:
766 case PIX_FMT_YUV410P:
767 case PIX_FMT_YUV411P:
768 is_yuv = 1;
769 break;
770 default:
771 is_yuv = 0;
772 break;
773 }
774 #endif
775 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec.width,
776 is->video_st->codec.height,
777 SDL_YV12_OVERLAY,
778 screen);
779 vp->width = is->video_st->codec.width;
780 vp->height = is->video_st->codec.height;
781
782 SDL_LockMutex(is->pictq_mutex);
783 vp->allocated = 1;
784 SDL_CondSignal(is->pictq_cond);
785 SDL_UnlockMutex(is->pictq_mutex);
786 }
787
788 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
789 {
790 VideoPicture *vp;
791 int dst_pix_fmt;
792 AVPicture pict;
793
794 /* wait until we have space to put a new picture */
795 SDL_LockMutex(is->pictq_mutex);
796 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
797 !is->videoq.abort_request) {
798 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
799 }
800 SDL_UnlockMutex(is->pictq_mutex);
801
802 if (is->videoq.abort_request)
803 return -1;
804
805 vp = &is->pictq[is->pictq_windex];
806
807 /* alloc or resize hardware picture buffer */
808 if (!vp->bmp ||
809 vp->width != is->video_st->codec.width ||
810 vp->height != is->video_st->codec.height) {
811 SDL_Event event;
812
813 vp->allocated = 0;
814
815 /* the allocation must be done in the main thread to avoid
816 locking problems */
817 event.type = FF_ALLOC_EVENT;
818 event.user.data1 = is;
819 SDL_PushEvent(&event);
820
821 /* wait until the picture is allocated */
822 SDL_LockMutex(is->pictq_mutex);
823 while (!vp->allocated && !is->videoq.abort_request) {
824 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
825 }
826 SDL_UnlockMutex(is->pictq_mutex);
827
828 if (is->videoq.abort_request)
829 return -1;
830 }
831
832 /* if the frame is not skipped, then display it */
833 if (vp->bmp) {
834 /* get a pointer on the bitmap */
835 SDL_LockYUVOverlay (vp->bmp);
836
837 dst_pix_fmt = PIX_FMT_YUV420P;
838 pict.data[0] = vp->bmp->pixels[0];
839 pict.data[1] = vp->bmp->pixels[2];
840 pict.data[2] = vp->bmp->pixels[1];
841
842 pict.linesize[0] = vp->bmp->pitches[0];
843 pict.linesize[1] = vp->bmp->pitches[2];
844 pict.linesize[2] = vp->bmp->pitches[1];
845 img_convert(&pict, dst_pix_fmt,
846 (AVPicture *)src_frame, is->video_st->codec.pix_fmt,
847 is->video_st->codec.width, is->video_st->codec.height);
848 /* update the bitmap content */
849 SDL_UnlockYUVOverlay(vp->bmp);
850
851 vp->pts = pts;
852
853 /* now we can update the picture count */
854 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
855 is->pictq_windex = 0;
856 SDL_LockMutex(is->pictq_mutex);
857 is->pictq_size++;
858 SDL_UnlockMutex(is->pictq_mutex);
859 }
860 return 0;
861 }
862
863 /* compute the exact PTS for the picture if it is omitted in the stream */
864 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
865 {
866 double frame_delay, pts;
867
868 pts = pts1;
869
870 if (pts != 0) {
871 /* update video clock with pts, if present */
872 is->video_clock = pts;
873 } else {
874 pts = is->video_clock;
875 }
876 /* update video clock for next frame */
877 frame_delay = av_q2d(is->video_st->codec.time_base);
878 /* for MPEG2, the frame can be repeated, so we update the
879 clock accordingly */
880 if (src_frame->repeat_pict) {
881 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
882 }
883 is->video_clock += frame_delay;
884
885 #if defined(DEBUG_SYNC) && 0
886 {
887 int ftype;
888 if (src_frame->pict_type == FF_B_TYPE)
889 ftype = 'B';
890 else if (src_frame->pict_type == FF_I_TYPE)
891 ftype = 'I';
892 else
893 ftype = 'P';
894 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
895 ftype, pts, pts1);
896 }
897 #endif
898 return queue_picture(is, src_frame, pts);
899 }
900
901 static int video_thread(void *arg)
902 {
903 VideoState *is = arg;
904 AVPacket pkt1, *pkt = &pkt1;
905 int len1, got_picture;
906 AVFrame *frame= avcodec_alloc_frame();
907 double pts;
908
909 for(;;) {
910 while (is->paused && !is->videoq.abort_request) {
911 SDL_Delay(10);
912 }
913 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
914 break;
915 /* NOTE: ipts is the PTS of the _first_ picture beginning in
916 this packet, if any */
917 pts = 0;
918 if (pkt->dts != AV_NOPTS_VALUE)
919 pts = av_q2d(is->video_st->time_base)*pkt->dts;
920
921 SDL_LockMutex(is->video_decoder_mutex);
922 len1 = avcodec_decode_video(&is->video_st->codec,
923 frame, &got_picture,
924 pkt->data, pkt->size);
925 SDL_UnlockMutex(is->video_decoder_mutex);
926 // if (len1 < 0)
927 // break;
928 if (got_picture) {
929 if (output_picture2(is, frame, pts) < 0)
930 goto the_end;
931 }
932 av_free_packet(pkt);
933 if (step)
934 if (cur_stream)
935 stream_pause(cur_stream);
936 }
937 the_end:
938 av_free(frame);
939 return 0;
940 }
941
942 /* copy samples for viewing in editor window */
943 static void update_sample_display(VideoState *is, short *samples, int samples_size)
944 {
945 int size, len, channels;
946
947 channels = is->audio_st->codec.channels;
948
949 size = samples_size / sizeof(short);
950 while (size > 0) {
951 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
952 if (len > size)
953 len = size;
954 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
955 samples += len;
956 is->sample_array_index += len;
957 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
958 is->sample_array_index = 0;
959 size -= len;
960 }
961 }
962
963 /* return the new audio buffer size (samples can be added or deleted
964 to get better sync if video or external master clock) */
965 static int synchronize_audio(VideoState *is, short *samples,
966 int samples_size1, double pts)
967 {
968 int n, samples_size;
969 double ref_clock;
970
971 n = 2 * is->audio_st->codec.channels;
972 samples_size = samples_size1;
973
974 /* if not master, then we try to remove or add samples to correct the clock */
975 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
976 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
977 double diff, avg_diff;
978 int wanted_size, min_size, max_size, nb_samples;
979
980 ref_clock = get_master_clock(is);
981 diff = get_audio_clock(is) - ref_clock;
982
983 if (diff < AV_NOSYNC_THRESHOLD) {
984 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
985 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
986 /* not enough measures to have a correct estimate */
987 is->audio_diff_avg_count++;
988 } else {
989 /* estimate the A-V difference */
990 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
991
992 if (fabs(avg_diff) >= is->audio_diff_threshold) {
993 wanted_size = samples_size + ((int)(diff * is->audio_st->codec.sample_rate) * n);
994 nb_samples = samples_size / n;
995
996 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
997 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
998 if (wanted_size < min_size)
999 wanted_size = min_size;
1000 else if (wanted_size > max_size)
1001 wanted_size = max_size;
1002
1003 /* add or remove samples to correction the synchro */
1004 if (wanted_size < samples_size) {
1005 /* remove samples */
1006 samples_size = wanted_size;
1007 } else if (wanted_size > samples_size) {
1008 uint8_t *samples_end, *q;
1009 int nb;
1010
1011 /* add samples */
1012 nb = (samples_size - wanted_size);
1013 samples_end = (uint8_t *)samples + samples_size - n;
1014 q = samples_end + n;
1015 while (nb > 0) {
1016 memcpy(q, samples_end, n);
1017 q += n;
1018 nb -= n;
1019 }
1020 samples_size = wanted_size;
1021 }
1022 }
1023 #if 0
1024 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1025 diff, avg_diff, samples_size - samples_size1,
1026 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1027 #endif
1028 }
1029 } else {
1030 /* too big difference : may be initial PTS errors, so
1031 reset A-V filter */
1032 is->audio_diff_avg_count = 0;
1033 is->audio_diff_cum = 0;
1034 }
1035 }
1036
1037 return samples_size;
1038 }
1039
1040 /* decode one audio frame and returns its uncompressed size */
1041 static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
1042 {
1043 AVPacket *pkt = &is->audio_pkt;
1044 int n, len1, data_size;
1045 double pts;
1046
1047 for(;;) {
1048 /* NOTE: the audio packet can contain several frames */
1049 while (is->audio_pkt_size > 0) {
1050 SDL_LockMutex(is->audio_decoder_mutex);
1051 len1 = avcodec_decode_audio(&is->audio_st->codec,
1052 (int16_t *)audio_buf, &data_size,
1053 is->audio_pkt_data, is->audio_pkt_size);
1054 SDL_UnlockMutex(is->audio_decoder_mutex);
1055 if (len1 < 0) {
1056 /* if error, we skip the frame */
1057 is->audio_pkt_size = 0;
1058 break;
1059 }
1060
1061 is->audio_pkt_data += len1;
1062 is->audio_pkt_size -= len1;
1063 if (data_size <= 0)
1064 continue;
1065 /* if no pts, then compute it */
1066 pts = is->audio_clock;
1067 *pts_ptr = pts;
1068 n = 2 * is->audio_st->codec.channels;
1069 is->audio_clock += (double)data_size /
1070 (double)(n * is->audio_st->codec.sample_rate);
1071 #if defined(DEBUG_SYNC)
1072 {
1073 static double last_clock;
1074 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1075 is->audio_clock - last_clock,
1076 is->audio_clock, pts);
1077 last_clock = is->audio_clock;
1078 }
1079 #endif
1080 return data_size;
1081 }
1082
1083 /* free the current packet */
1084 if (pkt->data)
1085 av_free_packet(pkt);
1086
1087 if (is->paused || is->audioq.abort_request) {
1088 return -1;
1089 }
1090
1091 /* read next packet */
1092 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1093 return -1;
1094 is->audio_pkt_data = pkt->data;
1095 is->audio_pkt_size = pkt->size;
1096
1097 /* if update the audio clock with the pts */
1098 if (pkt->pts != AV_NOPTS_VALUE) {
1099 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1100 }
1101 }
1102 }
1103
1104 /* get the current audio output buffer size, in samples. With SDL, we
1105 cannot have a precise information */
1106 static int audio_write_get_buf_size(VideoState *is)
1107 {
1108 return is->audio_hw_buf_size - is->audio_buf_index;
1109 }
1110
1111
1112 /* prepare a new audio buffer */
1113 void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1114 {
1115 VideoState *is = opaque;
1116 int audio_size, len1;
1117 double pts;
1118
1119 audio_callback_time = av_gettime();
1120
1121 while (len > 0) {
1122 if (is->audio_buf_index >= is->audio_buf_size) {
1123 audio_size = audio_decode_frame(is, is->audio_buf, &pts);
1124 if (audio_size < 0) {
1125 /* if error, just output silence */
1126 is->audio_buf_size = 1024;
1127 memset(is->audio_buf, 0, is->audio_buf_size);
1128 } else {
1129 if (is->show_audio)
1130 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1131 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1132 pts);
1133 is->audio_buf_size = audio_size;
1134 }
1135 is->audio_buf_index = 0;
1136 }
1137 len1 = is->audio_buf_size - is->audio_buf_index;
1138 if (len1 > len)
1139 len1 = len;
1140 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1141 len -= len1;
1142 stream += len1;
1143 is->audio_buf_index += len1;
1144 }
1145 }
1146
1147
1148 /* open a given stream. Return 0 if OK */
1149 static int stream_component_open(VideoState *is, int stream_index)
1150 {
1151 AVFormatContext *ic = is->ic;
1152 AVCodecContext *enc;
1153 AVCodec *codec;
1154 SDL_AudioSpec wanted_spec, spec;
1155
1156 if (stream_index < 0 || stream_index >= ic->nb_streams)
1157 return -1;
1158 enc = &ic->streams[stream_index]->codec;
1159
1160 /* prepare audio output */
1161 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1162 wanted_spec.freq = enc->sample_rate;
1163 wanted_spec.format = AUDIO_S16SYS;
1164 /* hack for AC3. XXX: suppress that */
1165 if (enc->channels > 2)
1166 enc->channels = 2;
1167 wanted_spec.channels = enc->channels;
1168 wanted_spec.silence = 0;
1169 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1170 wanted_spec.callback = sdl_audio_callback;
1171 wanted_spec.userdata = is;
1172 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1173 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1174 return -1;
1175 }
1176 is->audio_hw_buf_size = spec.size;
1177 }
1178
1179 codec = avcodec_find_decoder(enc->codec_id);
1180 enc->debug_mv = debug_mv;
1181 enc->debug = debug;
1182 enc->workaround_bugs = workaround_bugs;
1183 enc->lowres = lowres;
1184 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1185 enc->idct_algo= idct;
1186 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1187 if (!codec ||
1188 avcodec_open(enc, codec) < 0)
1189 return -1;
1190 #if defined(HAVE_THREADS)
1191 if(thread_count>1)
1192 avcodec_thread_init(enc, thread_count);
1193 #endif
1194 enc->thread_count= thread_count;
1195 switch(enc->codec_type) {
1196 case CODEC_TYPE_AUDIO:
1197 is->audio_stream = stream_index;
1198 is->audio_st = ic->streams[stream_index];
1199 is->audio_buf_size = 0;
1200 is->audio_buf_index = 0;
1201
1202 /* init averaging filter */
1203 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1204 is->audio_diff_avg_count = 0;
1205 /* since we do not have a precise anough audio fifo fullness,
1206 we correct audio sync only if larger than this threshold */
1207 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1208
1209 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1210 packet_queue_init(&is->audioq);
1211 SDL_PauseAudio(0);
1212 break;
1213 case CODEC_TYPE_VIDEO:
1214 is->video_stream = stream_index;
1215 is->video_st = ic->streams[stream_index];
1216
1217 is->frame_last_delay = 40e-3;
1218 is->frame_timer = (double)av_gettime() / 1000000.0;
1219 is->video_current_pts_time = av_gettime();
1220
1221 packet_queue_init(&is->videoq);
1222 is->video_tid = SDL_CreateThread(video_thread, is);
1223 break;
1224 default:
1225 break;
1226 }
1227 return 0;
1228 }
1229
1230 static void stream_component_close(VideoState *is, int stream_index)
1231 {
1232 AVFormatContext *ic = is->ic;
1233 AVCodecContext *enc;
1234
1235 enc = &ic->streams[stream_index]->codec;
1236
1237 switch(enc->codec_type) {
1238 case CODEC_TYPE_AUDIO:
1239 packet_queue_abort(&is->audioq);
1240
1241 SDL_CloseAudio();
1242
1243 packet_queue_end(&is->audioq);
1244 break;
1245 case CODEC_TYPE_VIDEO:
1246 packet_queue_abort(&is->videoq);
1247
1248 /* note: we also signal this mutex to make sure we deblock the
1249 video thread in all cases */
1250 SDL_LockMutex(is->pictq_mutex);
1251 SDL_CondSignal(is->pictq_cond);
1252 SDL_UnlockMutex(is->pictq_mutex);
1253
1254 SDL_WaitThread(is->video_tid, NULL);
1255
1256 packet_queue_end(&is->videoq);
1257 break;
1258 default:
1259 break;
1260 }
1261
1262 avcodec_close(enc);
1263 switch(enc->codec_type) {
1264 case CODEC_TYPE_AUDIO:
1265 is->audio_st = NULL;
1266 is->audio_stream = -1;
1267 break;
1268 case CODEC_TYPE_VIDEO:
1269 is->video_st = NULL;
1270 is->video_stream = -1;
1271 break;
1272 default:
1273 break;
1274 }
1275 }
1276
1277 void dump_stream_info(AVFormatContext *s)
1278 {
1279 if (s->track != 0)
1280 fprintf(stderr, "Track: %d\n", s->track);
1281 if (s->title[0] != '\0')
1282 fprintf(stderr, "Title: %s\n", s->title);
1283 if (s->author[0] != '\0')
1284 fprintf(stderr, "Author: %s\n", s->author);
1285 if (s->album[0] != '\0')
1286 fprintf(stderr, "Album: %s\n", s->album);
1287 if (s->year != 0)
1288 fprintf(stderr, "Year: %d\n", s->year);
1289 if (s->genre[0] != '\0')
1290 fprintf(stderr, "Genre: %s\n", s->genre);
1291 }
1292
1293 /* since we have only one decoding thread, we can use a global
1294 variable instead of a thread local variable */
1295 static VideoState *global_video_state;
1296
1297 static int decode_interrupt_cb(void)
1298 {
1299 return (global_video_state && global_video_state->abort_request);
1300 }
1301
1302 /* this thread gets the stream from the disk or the network */
1303 static int decode_thread(void *arg)
1304 {
1305 VideoState *is = arg;
1306 AVFormatContext *ic;
1307 int err, i, ret, video_index, audio_index, use_play;
1308 AVPacket pkt1, *pkt = &pkt1;
1309 AVFormatParameters params, *ap = &params;
1310
1311 video_index = -1;
1312 audio_index = -1;
1313 is->video_stream = -1;
1314 is->audio_stream = -1;
1315
1316 global_video_state = is;
1317 url_set_interrupt_cb(decode_interrupt_cb);
1318
1319 memset(ap, 0, sizeof(*ap));
1320 ap->image_format = image_format;
1321 ap->initial_pause = 1; /* we force a pause when starting an RTSP
1322 stream */
1323
1324 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1325 if (err < 0) {
1326 print_error(is->filename, err);
1327 ret = -1;
1328 goto fail;
1329 }
1330 is->ic = ic;
1331 #ifdef CONFIG_NETWORK
1332 use_play = (ic->iformat == &rtsp_demux);
1333 #else
1334 use_play = 0;
1335 #endif
1336 if (!use_play) {
1337 err = av_find_stream_info(ic);
1338 if (err < 0) {
1339 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1340 ret = -1;
1341 goto fail;
1342 }
1343 ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
1344 }
1345
1346 /* if seeking requested, we execute it */
1347 if (start_time != AV_NOPTS_VALUE) {
1348 int64_t timestamp;
1349
1350 timestamp = start_time;
1351 /* add the stream start time */
1352 if (ic->start_time != AV_NOPTS_VALUE)
1353 timestamp += ic->start_time;
1354 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1355 if (ret < 0) {
1356 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1357 is->filename, (double)timestamp / AV_TIME_BASE);
1358 }
1359 }
1360
1361 /* now we can begin to play (RTSP stream only) */
1362 av_read_play(ic);
1363
1364 if (use_play) {
1365 err = av_find_stream_info(ic);
1366 if (err < 0) {
1367 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1368 ret = -1;
1369 goto fail;
1370 }
1371 }
1372
1373 for(i = 0; i < ic->nb_streams; i++) {
1374 AVCodecContext *enc = &ic->streams[i]->codec;
1375 switch(enc->codec_type) {
1376 case CODEC_TYPE_AUDIO:
1377 if (audio_index < 0 && !audio_disable)
1378 audio_index = i;
1379 break;
1380 case CODEC_TYPE_VIDEO:
1381 if (video_index < 0 && !video_disable)
1382 video_index = i;
1383 break;
1384 default:
1385 break;
1386 }
1387 }
1388 if (show_status) {
1389 dump_format(ic, 0, is->filename, 0);
1390 dump_stream_info(ic);
1391 }
1392
1393 /* open the streams */
1394 if (audio_index >= 0) {
1395 stream_component_open(is, audio_index);
1396 }
1397
1398 if (video_index >= 0) {
1399 stream_component_open(is, video_index);
1400 } else {
1401 if (!display_disable)
1402 is->show_audio = 1;
1403 }
1404
1405 if (is->video_stream < 0 && is->audio_stream < 0) {
1406 fprintf(stderr, "%s: could not open codecs\n", is->filename);
1407 ret = -1;
1408 goto fail;
1409 }
1410
1411 for(;;) {
1412 if (is->abort_request)
1413 break;
1414 #ifdef CONFIG_NETWORK
1415 if (is->paused != is->last_paused) {
1416 is->last_paused = is->paused;
1417 if (is->paused)
1418 av_read_pause(ic);
1419 else
1420 av_read_play(ic);
1421 }
1422 if (is->paused && ic->iformat == &rtsp_demux) {
1423 /* wait 10 ms to avoid trying to get another packet */
1424 /* XXX: horrible */
1425 SDL_Delay(10);
1426 continue;
1427 }
1428 #endif
1429 if (is->seek_req) {
1430 /* XXX: must lock decoder threads */
1431 ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
1432 if (ret < 0) {
1433 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
1434 }else{
1435 if (is->audio_stream >= 0) {
1436 packet_queue_flush(&is->audioq);
1437 }
1438 if (is->video_stream >= 0) {
1439 packet_queue_flush(&is->videoq);
1440 SDL_LockMutex(is->video_decoder_mutex);
1441 avcodec_flush_buffers(&ic->streams[video_index]->codec);
1442 SDL_UnlockMutex(is->video_decoder_mutex);
1443 }
1444 }
1445 is->seek_req = 0;
1446 }
1447
1448 /* if the queue are full, no need to read more */
1449 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1450 is->videoq.size > MAX_VIDEOQ_SIZE ||
1451 url_feof(&ic->pb)) {
1452 /* wait 10 ms */
1453 SDL_Delay(10);
1454 continue;
1455 }
1456 ret = av_read_frame(ic, pkt);
1457 if (ret < 0) {
1458 if (url_feof(&ic->pb) && url_ferror(&ic->pb) == 0) {
1459 SDL_Delay(100); /* wait for user event */
1460 continue;
1461 } else
1462 break;
1463 }
1464 if (pkt->stream_index == is->audio_stream) {
1465 packet_queue_put(&is->audioq, pkt);
1466 } else if (pkt->stream_index == is->video_stream) {
1467 packet_queue_put(&is->videoq, pkt);
1468 } else {
1469 av_free_packet(pkt);
1470 }
1471 }
1472 /* wait until the end */
1473 while (!is->abort_request) {
1474 SDL_Delay(100);
1475 }
1476
1477 ret = 0;
1478 fail:
1479 /* disable interrupting */
1480 global_video_state = NULL;
1481
1482 /* close each stream */
1483 if (is->audio_stream >= 0)
1484 stream_component_close(is, is->audio_stream);
1485 if (is->video_stream >= 0)
1486 stream_component_close(is, is->video_stream);
1487 if (is->ic) {
1488 av_close_input_file(is->ic);
1489 is->ic = NULL; /* safety */
1490 }
1491 url_set_interrupt_cb(NULL);
1492
1493 if (ret != 0) {
1494 SDL_Event event;
1495
1496 event.type = FF_QUIT_EVENT;
1497 event.user.data1 = is;
1498 SDL_PushEvent(&event);
1499 }
1500 return 0;
1501 }
1502
1503 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
1504 {
1505 VideoState *is;
1506
1507 is = av_mallocz(sizeof(VideoState));
1508 if (!is)
1509 return NULL;
1510 pstrcpy(is->filename, sizeof(is->filename), filename);
1511 is->iformat = iformat;
1512 if (screen) {
1513 is->width = screen->w;
1514 is->height = screen->h;
1515 }
1516 is->ytop = 0;
1517 is->xleft = 0;
1518
1519 /* start video display */
1520 is->pictq_mutex = SDL_CreateMutex();
1521 is->pictq_cond = SDL_CreateCond();
1522
1523 is->audio_decoder_mutex = SDL_CreateMutex();
1524 is->video_decoder_mutex = SDL_CreateMutex();
1525
1526 /* add the refresh timer to draw the picture */
1527 schedule_refresh(is, 40);
1528
1529 is->av_sync_type = av_sync_type;
1530 is->parse_tid = SDL_CreateThread(decode_thread, is);
1531 if (!is->parse_tid) {
1532 av_free(is);
1533 return NULL;
1534 }
1535 return is;
1536 }
1537
1538 static void stream_close(VideoState *is)
1539 {
1540 VideoPicture *vp;
1541 int i;
1542 /* XXX: use a special url_shutdown call to abort parse cleanly */
1543 is->abort_request = 1;
1544 SDL_WaitThread(is->parse_tid, NULL);
1545
1546 /* free all pictures */
1547 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1548 vp = &is->pictq[i];
1549 if (vp->bmp) {
1550 SDL_FreeYUVOverlay(vp->bmp);
1551 vp->bmp = NULL;
1552 }
1553 }
1554 SDL_DestroyMutex(is->pictq_mutex);
1555 SDL_DestroyCond(is->pictq_cond);
1556 SDL_DestroyMutex(is->audio_decoder_mutex);
1557 SDL_DestroyMutex(is->video_decoder_mutex);
1558 }
1559
1560 void stream_cycle_channel(VideoState *is, int codec_type)
1561 {
1562 AVFormatContext *ic = is->ic;
1563 int start_index, stream_index;
1564 AVStream *st;
1565
1566 if (codec_type == CODEC_TYPE_VIDEO)
1567 start_index = is->video_stream;
1568 else
1569 start_index = is->audio_stream;
1570 if (start_index < 0)
1571 return;
1572 stream_index = start_index;
1573 for(;;) {
1574 if (++stream_index >= is->ic->nb_streams)
1575 stream_index = 0;
1576 if (stream_index == start_index)
1577 return;
1578 st = ic->streams[stream_index];
1579 if (st->codec.codec_type == codec_type) {
1580 /* check that parameters are OK */
1581 switch(codec_type) {
1582 case CODEC_TYPE_AUDIO:
1583 if (st->codec.sample_rate != 0 &&
1584 st->codec.channels != 0)
1585 goto the_end;
1586 break;
1587 case CODEC_TYPE_VIDEO:
1588 goto the_end;
1589 default:
1590 break;
1591 }
1592 }
1593 }
1594 the_end:
1595 stream_component_close(is, start_index);
1596 stream_component_open(is, stream_index);
1597 }
1598
1599
1600 void toggle_full_screen(void)
1601 {
1602 int w, h, flags;
1603 is_full_screen = !is_full_screen;
1604 if (!fs_screen_width) {
1605 /* use default SDL method */
1606 SDL_WM_ToggleFullScreen(screen);
1607 } else {
1608 /* use the recorded resolution */
1609 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1610 if (is_full_screen) {
1611 w = fs_screen_width;
1612 h = fs_screen_height;
1613 flags |= SDL_FULLSCREEN;
1614 } else {
1615 w = screen_width;
1616 h = screen_height;
1617 flags |= SDL_RESIZABLE;
1618 }
1619 screen = SDL_SetVideoMode(w, h, 0, flags);
1620 cur_stream->width = w;
1621 cur_stream->height = h;
1622 }
1623 }
1624
1625 void toggle_pause(void)
1626 {
1627 if (cur_stream)
1628 stream_pause(cur_stream);
1629 step = 0;
1630 }
1631
1632 void step_to_next_frame(void)
1633 {
1634 if (cur_stream) {
1635 if (cur_stream->paused)
1636 cur_stream->paused=0;
1637 cur_stream->video_current_pts = get_video_clock(cur_stream);
1638 }
1639 step = 1;
1640 }
1641
1642 void do_exit(void)
1643 {
1644 if (cur_stream) {
1645 stream_close(cur_stream);
1646 cur_stream = NULL;
1647 }
1648 if (show_status)
1649 printf("\n");
1650 SDL_Quit();
1651 exit(0);
1652 }
1653
1654 void toggle_audio_display(void)
1655 {
1656 if (cur_stream) {
1657 cur_stream->show_audio = !cur_stream->show_audio;
1658 }
1659 }
1660
1661 /* handle an event sent by the GUI */
1662 void event_loop(void)
1663 {
1664 SDL_Event event;
1665 double incr, pos, frac;
1666
1667 for(;;) {
1668 SDL_WaitEvent(&event);
1669 switch(event.type) {
1670 case SDL_KEYDOWN:
1671 switch(event.key.keysym.sym) {
1672 case SDLK_ESCAPE:
1673 case SDLK_q:
1674 do_exit();
1675 break;
1676 case SDLK_f:
1677 toggle_full_screen();
1678 break;
1679 case SDLK_p:
1680 case SDLK_SPACE:
1681 toggle_pause();
1682 break;
1683 case SDLK_s: //S: Step to next frame
1684 step_to_next_frame();
1685 break;
1686 case SDLK_a:
1687 if (cur_stream)
1688 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
1689 break;
1690 case SDLK_v:
1691 if (cur_stream)
1692 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
1693 break;
1694 case SDLK_w:
1695 toggle_audio_display();
1696 break;
1697 case SDLK_LEFT:
1698 incr = -10.0;
1699 goto do_seek;
1700 case SDLK_RIGHT:
1701 incr = 10.0;
1702 goto do_seek;
1703 case SDLK_UP:
1704 incr = 60.0;
1705 goto do_seek;
1706 case SDLK_DOWN:
1707 incr = -60.0;
1708 do_seek:
1709 if (cur_stream) {
1710 pos = get_master_clock(cur_stream);
1711 pos += incr;
1712 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
1713 }
1714 break;
1715 default:
1716 break;
1717 }
1718 break;
1719 case SDL_MOUSEBUTTONDOWN:
1720 if (cur_stream) {
1721 int ns, hh, mm, ss;
1722 int tns, thh, tmm, tss;
1723 tns = cur_stream->ic->duration/1000000LL;
1724 thh = tns/3600;
1725 tmm = (tns%3600)/60;
1726 tss = (tns%60);
1727 frac = (double)event.button.x/(double)cur_stream->width;
1728 ns = frac*tns;
1729 hh = ns/3600;
1730 mm = (ns%3600)/60;
1731 ss = (ns%60);
1732 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
1733 hh, mm, ss, thh, tmm, tss);
1734 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
1735 }
1736 break;
1737 case SDL_VIDEORESIZE:
1738 if (cur_stream) {
1739 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
1740 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
1741 cur_stream->width = event.resize.w;
1742 cur_stream->height = event.resize.h;
1743 }
1744 break;
1745 case SDL_QUIT:
1746 case FF_QUIT_EVENT:
1747 do_exit();
1748 break;
1749 case FF_ALLOC_EVENT:
1750 alloc_picture(event.user.data1);
1751 break;
1752 case FF_REFRESH_EVENT:
1753 video_refresh_timer(event.user.data1);
1754 break;
1755 default:
1756 break;
1757 }
1758 }
1759 }
1760
1761 void opt_width(const char *arg)
1762 {
1763 screen_width = atoi(arg);
1764 }
1765
1766 void opt_height(const char *arg)
1767 {
1768 screen_height = atoi(arg);
1769 }
1770
1771 static void opt_format(const char *arg)
1772 {
1773 file_iformat = av_find_input_format(arg);
1774 if (!file_iformat) {
1775 fprintf(stderr, "Unknown input format: %s\n", arg);
1776 exit(1);
1777 }
1778 }
1779
1780 static void opt_image_format(const char *arg)
1781 {
1782 AVImageFormat *f;
1783
1784 for(f = first_image_format; f != NULL; f = f->next) {
1785 if (!strcmp(arg, f->name))
1786 break;
1787 }
1788 if (!f) {
1789 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1790 exit(1);
1791 }
1792 image_format = f;
1793 }
1794
1795 #ifdef CONFIG_NETWORK
1796 void opt_rtp_tcp(void)
1797 {
1798 /* only tcp protocol */
1799 rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
1800 }
1801 #endif
1802
1803 void opt_sync(const char *arg)
1804 {
1805 if (!strcmp(arg, "audio"))
1806 av_sync_type = AV_SYNC_AUDIO_MASTER;
1807 else if (!strcmp(arg, "video"))
1808 av_sync_type = AV_SYNC_VIDEO_MASTER;
1809 else if (!strcmp(arg, "ext"))
1810 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
1811 else
1812 show_help();
1813 }
1814
1815 void opt_seek(const char *arg)
1816 {
1817 start_time = parse_date(arg, 1);
1818 }
1819
1820 static void opt_debug(const char *arg)
1821 {
1822 debug = atoi(arg);
1823 }
1824
1825 static void opt_vismv(const char *arg)
1826 {
1827 debug_mv = atoi(arg);
1828 }
1829
1830 static void opt_thread_count(const char *arg)
1831 {
1832 thread_count= atoi(arg);
1833 #if !defined(HAVE_THREADS)
1834 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
1835 #endif
1836 }
1837
1838 const OptionDef options[] = {
1839 { "h", 0, {(void*)show_help}, "show help" },
1840 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
1841 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
1842 #if 0
1843 /* disabled as SDL/X11 does not support it correctly on application launch */
1844 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
1845 #endif
1846 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1847 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1848 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
1849 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
1850 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1851 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
1852 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
1853 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
1854 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
1855 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
1856 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
1857 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
1858 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
1859 #ifdef CONFIG_NETWORK
1860 { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
1861 #endif
1862 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
1863 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
1864 { NULL, },
1865 };
1866
1867 void show_help(void)
1868 {
1869 printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
1870 "usage: ffplay [options] input_file\n"
1871 "Simple media player\n");
1872 printf("\n");
1873 show_help_options(options, "Main options:\n",
1874 OPT_EXPERT, 0);
1875 show_help_options(options, "\nAdvanced options:\n",
1876 OPT_EXPERT, OPT_EXPERT);
1877 printf("\nWhile playing:\n"
1878 "q, ESC quit\n"
1879 "f toggle full screen\n"
1880 "p, SPC pause\n"
1881 "a cycle audio channel\n"
1882 "v cycle video channel\n"
1883 "w show audio waves\n"
1884 "left/right seek backward/forward 10 seconds\n"
1885 "down/up seek backward/forward 1 minute\n"
1886 "mouse click seek to percentage in file corresponding to fraction of width\n"
1887 );
1888 exit(1);
1889 }
1890
1891 void parse_arg_file(const char *filename)
1892 {
1893 if (!strcmp(filename, "-"))
1894 filename = "pipe:";
1895 input_filename = filename;
1896 }
1897
1898 /* Called from the main */
1899 int main(int argc, char **argv)
1900 {
1901 int flags, w, h;
1902
1903 /* register all codecs, demux and protocols */
1904 av_register_all();
1905
1906 #ifdef CONFIG_OS2
1907 MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
1908
1909 // Make stdout and stderr unbuffered
1910 setbuf( stdout, NULL );
1911 setbuf( stderr, NULL );
1912 #endif
1913
1914 parse_options(argc, argv, options);
1915
1916 if (!input_filename)
1917 show_help();
1918
1919 if (display_disable) {
1920 video_disable = 1;
1921 }
1922 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
1923 #ifndef CONFIG_WIN32
1924 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 */
1925 #endif
1926 if (SDL_Init (flags)) {
1927 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
1928 exit(1);
1929 }
1930
1931 if (!display_disable) {
1932 #ifdef HAVE_X11
1933 /* save the screen resolution... SDL should allow full screen
1934 by resizing the window */
1935 {
1936 Display *dpy;
1937 dpy = XOpenDisplay(NULL);
1938 if (dpy) {
1939 fs_screen_width = DisplayWidth(dpy, DefaultScreen(dpy));
1940 fs_screen_height = DisplayHeight(dpy, DefaultScreen(dpy));
1941 XCloseDisplay(dpy);
1942 }
1943 }
1944 #endif
1945 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1946 if (is_full_screen && fs_screen_width) {
1947 w = fs_screen_width;
1948 h = fs_screen_height;
1949 flags |= SDL_FULLSCREEN;
1950 } else {
1951 w = screen_width;
1952 h = screen_height;
1953 flags |= SDL_RESIZABLE;
1954 }
1955 screen = SDL_SetVideoMode(w, h, 0, flags);
1956 if (!screen) {
1957 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1958 exit(1);
1959 }
1960 SDL_WM_SetCaption("FFplay", "FFplay");
1961 }
1962
1963 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
1964 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
1965 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
1966 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
1967
1968 cur_stream = stream_open(input_filename, file_iformat);
1969
1970 event_loop();
1971
1972 /* never returns */
1973
1974 return 0;
1975 }