ffplay: in video_thread(), use av_dlog() for timestamp logging.
[ffmpeg.git] / ffplay.c
1 /*
2  * FFplay : Simple Media Player based on the FFmpeg libraries
3  * Copyright (c) 2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21
22 #define _XOPEN_SOURCE 600
23
24 #include "config.h"
25 #include <inttypes.h>
26 #include <math.h>
27 #include <limits.h>
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavcore/imgutils.h"
32 #include "libavcore/parseutils.h"
33 #include "libavcore/samplefmt.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/audioconvert.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/avfft.h"
40
41 #if CONFIG_AVFILTER
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
44 #endif
45
46 #include "cmdutils.h"
47
48 #include <SDL.h>
49 #include <SDL_thread.h>
50
51 #ifdef __MINGW32__
52 #undef main /* We don't want SDL to override our main() */
53 #endif
54
55 #include <unistd.h>
56 #include <assert.h>
57
58 const char program_name[] = "FFplay";
59 const int program_birth_year = 2003;
60
61 //#define DEBUG
62 //#define DEBUG_SYNC
63
64 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66 #define MIN_FRAMES 5
67
68 /* SDL audio buffer size, in samples. Should be small to have precise
69    A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
71
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
76
77 #define FRAME_SKIP_FACTOR 0.05
78
79 /* maximum audio speed change to get correct sync */
80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81
82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83 #define AUDIO_DIFF_AVG_NB   20
84
85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86 #define SAMPLE_ARRAY_SIZE (2*65536)
87
88 static int sws_flags = SWS_BICUBIC;
89
90 typedef struct PacketQueue {
91     AVPacketList *first_pkt, *last_pkt;
92     int nb_packets;
93     int size;
94     int abort_request;
95     SDL_mutex *mutex;
96     SDL_cond *cond;
97 } PacketQueue;
98
99 #define VIDEO_PICTURE_QUEUE_SIZE 2
100 #define SUBPICTURE_QUEUE_SIZE 4
101
102 typedef struct VideoPicture {
103     double pts;                                  ///<presentation time stamp for this picture
104     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
105     int64_t pos;                                 ///<byte position in file
106     SDL_Overlay *bmp;
107     int width, height; /* source height & width */
108     int allocated;
109     enum PixelFormat pix_fmt;
110
111 #if CONFIG_AVFILTER
112     AVFilterBufferRef *picref;
113 #endif
114 } VideoPicture;
115
116 typedef struct SubPicture {
117     double pts; /* presentation time stamp for this picture */
118     AVSubtitle sub;
119 } SubPicture;
120
121 enum {
122     AV_SYNC_AUDIO_MASTER, /* default choice */
123     AV_SYNC_VIDEO_MASTER,
124     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 };
126
127 typedef struct VideoState {
128     SDL_Thread *parse_tid;
129     SDL_Thread *video_tid;
130     SDL_Thread *refresh_tid;
131     AVInputFormat *iformat;
132     int no_background;
133     int abort_request;
134     int paused;
135     int last_paused;
136     int seek_req;
137     int seek_flags;
138     int64_t seek_pos;
139     int64_t seek_rel;
140     int read_pause_return;
141     AVFormatContext *ic;
142     int dtg_active_format;
143
144     int audio_stream;
145
146     int av_sync_type;
147     double external_clock; /* external clock base */
148     int64_t external_clock_time;
149
150     double audio_clock;
151     double audio_diff_cum; /* used for AV difference average computation */
152     double audio_diff_avg_coef;
153     double audio_diff_threshold;
154     int audio_diff_avg_count;
155     AVStream *audio_st;
156     PacketQueue audioq;
157     int audio_hw_buf_size;
158     /* samples output by the codec. we reserve more space for avsync
159        compensation */
160     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162     uint8_t *audio_buf;
163     unsigned int audio_buf_size; /* in bytes */
164     int audio_buf_index; /* in bytes */
165     AVPacket audio_pkt_temp;
166     AVPacket audio_pkt;
167     enum AVSampleFormat audio_src_fmt;
168     AVAudioConvert *reformat_ctx;
169
170     int show_audio; /* if true, display audio samples */
171     int16_t sample_array[SAMPLE_ARRAY_SIZE];
172     int sample_array_index;
173     int last_i_start;
174     RDFTContext *rdft;
175     int rdft_bits;
176     FFTSample *rdft_data;
177     int xpos;
178
179     SDL_Thread *subtitle_tid;
180     int subtitle_stream;
181     int subtitle_stream_changed;
182     AVStream *subtitle_st;
183     PacketQueue subtitleq;
184     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185     int subpq_size, subpq_rindex, subpq_windex;
186     SDL_mutex *subpq_mutex;
187     SDL_cond *subpq_cond;
188
189     double frame_timer;
190     double frame_last_pts;
191     double frame_last_delay;
192     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
193     int video_stream;
194     AVStream *video_st;
195     PacketQueue videoq;
196     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
197     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198     int64_t video_current_pos;                   ///<current displayed file pos
199     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200     int pictq_size, pictq_rindex, pictq_windex;
201     SDL_mutex *pictq_mutex;
202     SDL_cond *pictq_cond;
203 #if !CONFIG_AVFILTER
204     struct SwsContext *img_convert_ctx;
205 #endif
206
207     //    QETimer *video_timer;
208     char filename[1024];
209     int width, height, xleft, ytop;
210
211     PtsCorrectionContext pts_ctx;
212
213 #if CONFIG_AVFILTER
214     AVFilterContext *out_video_filter;          ///<the last filter in the video chain
215 #endif
216
217     float skip_frames;
218     float skip_frames_index;
219     int refresh;
220 } VideoState;
221
222 static void show_help(void);
223 static int audio_write_get_buf_size(VideoState *is);
224
225 /* options specified by the user */
226 static AVInputFormat *file_iformat;
227 static const char *input_filename;
228 static const char *window_title;
229 static int fs_screen_width;
230 static int fs_screen_height;
231 static int screen_width = 0;
232 static int screen_height = 0;
233 static int frame_width = 0;
234 static int frame_height = 0;
235 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
236 static int audio_disable;
237 static int video_disable;
238 static int wanted_stream[AVMEDIA_TYPE_NB]={
239     [AVMEDIA_TYPE_AUDIO]=-1,
240     [AVMEDIA_TYPE_VIDEO]=-1,
241     [AVMEDIA_TYPE_SUBTITLE]=-1,
242 };
243 static int seek_by_bytes=-1;
244 static int display_disable;
245 static int show_status = 1;
246 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
247 static int64_t start_time = AV_NOPTS_VALUE;
248 static int64_t duration = AV_NOPTS_VALUE;
249 static int debug = 0;
250 static int debug_mv = 0;
251 static int step = 0;
252 static int thread_count = 1;
253 static int workaround_bugs = 1;
254 static int fast = 0;
255 static int genpts = 0;
256 static int lowres = 0;
257 static int idct = FF_IDCT_AUTO;
258 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
260 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
261 static int error_recognition = FF_ER_CAREFUL;
262 static int error_concealment = 3;
263 static int decoder_reorder_pts= -1;
264 static int autoexit;
265 static int exit_on_keydown;
266 static int exit_on_mousedown;
267 static int loop=1;
268 static int framedrop=1;
269
270 static int rdftspeed=20;
271 #if CONFIG_AVFILTER
272 static char *vfilters = NULL;
273 #endif
274
275 /* current context */
276 static int is_full_screen;
277 static VideoState *cur_stream;
278 static int64_t audio_callback_time;
279
280 static AVPacket flush_pkt;
281
282 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
283 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
284 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
285
286 static SDL_Surface *screen;
287
288 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289
290 /* packet queue handling */
291 static void packet_queue_init(PacketQueue *q)
292 {
293     memset(q, 0, sizeof(PacketQueue));
294     q->mutex = SDL_CreateMutex();
295     q->cond = SDL_CreateCond();
296     packet_queue_put(q, &flush_pkt);
297 }
298
299 static void packet_queue_flush(PacketQueue *q)
300 {
301     AVPacketList *pkt, *pkt1;
302
303     SDL_LockMutex(q->mutex);
304     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305         pkt1 = pkt->next;
306         av_free_packet(&pkt->pkt);
307         av_freep(&pkt);
308     }
309     q->last_pkt = NULL;
310     q->first_pkt = NULL;
311     q->nb_packets = 0;
312     q->size = 0;
313     SDL_UnlockMutex(q->mutex);
314 }
315
316 static void packet_queue_end(PacketQueue *q)
317 {
318     packet_queue_flush(q);
319     SDL_DestroyMutex(q->mutex);
320     SDL_DestroyCond(q->cond);
321 }
322
323 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
324 {
325     AVPacketList *pkt1;
326
327     /* duplicate the packet */
328     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
329         return -1;
330
331     pkt1 = av_malloc(sizeof(AVPacketList));
332     if (!pkt1)
333         return -1;
334     pkt1->pkt = *pkt;
335     pkt1->next = NULL;
336
337
338     SDL_LockMutex(q->mutex);
339
340     if (!q->last_pkt)
341
342         q->first_pkt = pkt1;
343     else
344         q->last_pkt->next = pkt1;
345     q->last_pkt = pkt1;
346     q->nb_packets++;
347     q->size += pkt1->pkt.size + sizeof(*pkt1);
348     /* XXX: should duplicate packet data in DV case */
349     SDL_CondSignal(q->cond);
350
351     SDL_UnlockMutex(q->mutex);
352     return 0;
353 }
354
355 static void packet_queue_abort(PacketQueue *q)
356 {
357     SDL_LockMutex(q->mutex);
358
359     q->abort_request = 1;
360
361     SDL_CondSignal(q->cond);
362
363     SDL_UnlockMutex(q->mutex);
364 }
365
366 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
367 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
368 {
369     AVPacketList *pkt1;
370     int ret;
371
372     SDL_LockMutex(q->mutex);
373
374     for(;;) {
375         if (q->abort_request) {
376             ret = -1;
377             break;
378         }
379
380         pkt1 = q->first_pkt;
381         if (pkt1) {
382             q->first_pkt = pkt1->next;
383             if (!q->first_pkt)
384                 q->last_pkt = NULL;
385             q->nb_packets--;
386             q->size -= pkt1->pkt.size + sizeof(*pkt1);
387             *pkt = pkt1->pkt;
388             av_free(pkt1);
389             ret = 1;
390             break;
391         } else if (!block) {
392             ret = 0;
393             break;
394         } else {
395             SDL_CondWait(q->cond, q->mutex);
396         }
397     }
398     SDL_UnlockMutex(q->mutex);
399     return ret;
400 }
401
402 static inline void fill_rectangle(SDL_Surface *screen,
403                                   int x, int y, int w, int h, int color)
404 {
405     SDL_Rect rect;
406     rect.x = x;
407     rect.y = y;
408     rect.w = w;
409     rect.h = h;
410     SDL_FillRect(screen, &rect, color);
411 }
412
413 #if 0
414 /* draw only the border of a rectangle */
415 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
416 {
417     int w1, w2, h1, h2;
418
419     /* fill the background */
420     w1 = x;
421     if (w1 < 0)
422         w1 = 0;
423     w2 = s->width - (x + w);
424     if (w2 < 0)
425         w2 = 0;
426     h1 = y;
427     if (h1 < 0)
428         h1 = 0;
429     h2 = s->height - (y + h);
430     if (h2 < 0)
431         h2 = 0;
432     fill_rectangle(screen,
433                    s->xleft, s->ytop,
434                    w1, s->height,
435                    color);
436     fill_rectangle(screen,
437                    s->xleft + s->width - w2, s->ytop,
438                    w2, s->height,
439                    color);
440     fill_rectangle(screen,
441                    s->xleft + w1, s->ytop,
442                    s->width - w1 - w2, h1,
443                    color);
444     fill_rectangle(screen,
445                    s->xleft + w1, s->ytop + s->height - h2,
446                    s->width - w1 - w2, h2,
447                    color);
448 }
449 #endif
450
451 #define ALPHA_BLEND(a, oldp, newp, s)\
452 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
453
454 #define RGBA_IN(r, g, b, a, s)\
455 {\
456     unsigned int v = ((const uint32_t *)(s))[0];\
457     a = (v >> 24) & 0xff;\
458     r = (v >> 16) & 0xff;\
459     g = (v >> 8) & 0xff;\
460     b = v & 0xff;\
461 }
462
463 #define YUVA_IN(y, u, v, a, s, pal)\
464 {\
465     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
466     a = (val >> 24) & 0xff;\
467     y = (val >> 16) & 0xff;\
468     u = (val >> 8) & 0xff;\
469     v = val & 0xff;\
470 }
471
472 #define YUVA_OUT(d, y, u, v, a)\
473 {\
474     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
475 }
476
477
478 #define BPP 1
479
480 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
481 {
482     int wrap, wrap3, width2, skip2;
483     int y, u, v, a, u1, v1, a1, w, h;
484     uint8_t *lum, *cb, *cr;
485     const uint8_t *p;
486     const uint32_t *pal;
487     int dstx, dsty, dstw, dsth;
488
489     dstw = av_clip(rect->w, 0, imgw);
490     dsth = av_clip(rect->h, 0, imgh);
491     dstx = av_clip(rect->x, 0, imgw - dstw);
492     dsty = av_clip(rect->y, 0, imgh - dsth);
493     lum = dst->data[0] + dsty * dst->linesize[0];
494     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
495     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
496
497     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
498     skip2 = dstx >> 1;
499     wrap = dst->linesize[0];
500     wrap3 = rect->pict.linesize[0];
501     p = rect->pict.data[0];
502     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
503
504     if (dsty & 1) {
505         lum += dstx;
506         cb += skip2;
507         cr += skip2;
508
509         if (dstx & 1) {
510             YUVA_IN(y, u, v, a, p, pal);
511             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
512             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
513             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
514             cb++;
515             cr++;
516             lum++;
517             p += BPP;
518         }
519         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
520             YUVA_IN(y, u, v, a, p, pal);
521             u1 = u;
522             v1 = v;
523             a1 = a;
524             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525
526             YUVA_IN(y, u, v, a, p + BPP, pal);
527             u1 += u;
528             v1 += v;
529             a1 += a;
530             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
531             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
532             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533             cb++;
534             cr++;
535             p += 2 * BPP;
536             lum += 2;
537         }
538         if (w) {
539             YUVA_IN(y, u, v, a, p, pal);
540             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
542             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
543             p++;
544             lum++;
545         }
546         p += wrap3 - dstw * BPP;
547         lum += wrap - dstw - dstx;
548         cb += dst->linesize[1] - width2 - skip2;
549         cr += dst->linesize[2] - width2 - skip2;
550     }
551     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
552         lum += dstx;
553         cb += skip2;
554         cr += skip2;
555
556         if (dstx & 1) {
557             YUVA_IN(y, u, v, a, p, pal);
558             u1 = u;
559             v1 = v;
560             a1 = a;
561             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562             p += wrap3;
563             lum += wrap;
564             YUVA_IN(y, u, v, a, p, pal);
565             u1 += u;
566             v1 += v;
567             a1 += a;
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);
571             cb++;
572             cr++;
573             p += -wrap3 + BPP;
574             lum += -wrap + 1;
575         }
576         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
577             YUVA_IN(y, u, v, a, p, pal);
578             u1 = u;
579             v1 = v;
580             a1 = a;
581             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582
583             YUVA_IN(y, u, v, a, p + BPP, pal);
584             u1 += u;
585             v1 += v;
586             a1 += a;
587             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588             p += wrap3;
589             lum += wrap;
590
591             YUVA_IN(y, u, v, a, p, pal);
592             u1 += u;
593             v1 += v;
594             a1 += a;
595             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596
597             YUVA_IN(y, u, v, a, p + BPP, pal);
598             u1 += u;
599             v1 += v;
600             a1 += a;
601             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602
603             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
604             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
605
606             cb++;
607             cr++;
608             p += -wrap3 + 2 * BPP;
609             lum += -wrap + 2;
610         }
611         if (w) {
612             YUVA_IN(y, u, v, a, p, pal);
613             u1 = u;
614             v1 = v;
615             a1 = a;
616             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617             p += wrap3;
618             lum += wrap;
619             YUVA_IN(y, u, v, a, p, pal);
620             u1 += u;
621             v1 += v;
622             a1 += a;
623             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
624             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
625             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
626             cb++;
627             cr++;
628             p += -wrap3 + BPP;
629             lum += -wrap + 1;
630         }
631         p += wrap3 + (wrap3 - dstw * BPP);
632         lum += wrap + (wrap - dstw - dstx);
633         cb += dst->linesize[1] - width2 - skip2;
634         cr += dst->linesize[2] - width2 - skip2;
635     }
636     /* handle odd height */
637     if (h) {
638         lum += dstx;
639         cb += skip2;
640         cr += skip2;
641
642         if (dstx & 1) {
643             YUVA_IN(y, u, v, a, p, pal);
644             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
645             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
646             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
647             cb++;
648             cr++;
649             lum++;
650             p += BPP;
651         }
652         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
653             YUVA_IN(y, u, v, a, p, pal);
654             u1 = u;
655             v1 = v;
656             a1 = a;
657             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
658
659             YUVA_IN(y, u, v, a, p + BPP, pal);
660             u1 += u;
661             v1 += v;
662             a1 += a;
663             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
664             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
665             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
666             cb++;
667             cr++;
668             p += 2 * BPP;
669             lum += 2;
670         }
671         if (w) {
672             YUVA_IN(y, u, v, a, p, pal);
673             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
674             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
675             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
676         }
677     }
678 }
679
680 static void free_subpicture(SubPicture *sp)
681 {
682     avsubtitle_free(&sp->sub);
683 }
684
685 static void video_image_display(VideoState *is)
686 {
687     VideoPicture *vp;
688     SubPicture *sp;
689     AVPicture pict;
690     float aspect_ratio;
691     int width, height, x, y;
692     SDL_Rect rect;
693     int i;
694
695     vp = &is->pictq[is->pictq_rindex];
696     if (vp->bmp) {
697 #if CONFIG_AVFILTER
698          if (vp->picref->video->pixel_aspect.num == 0)
699              aspect_ratio = 0;
700          else
701              aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
702 #else
703
704         /* XXX: use variable in the frame */
705         if (is->video_st->sample_aspect_ratio.num)
706             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
707         else if (is->video_st->codec->sample_aspect_ratio.num)
708             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
709         else
710             aspect_ratio = 0;
711 #endif
712         if (aspect_ratio <= 0.0)
713             aspect_ratio = 1.0;
714         aspect_ratio *= (float)vp->width / (float)vp->height;
715         /* if an active format is indicated, then it overrides the
716            mpeg format */
717 #if 0
718         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
719             is->dtg_active_format = is->video_st->codec->dtg_active_format;
720             printf("dtg_active_format=%d\n", is->dtg_active_format);
721         }
722 #endif
723 #if 0
724         switch(is->video_st->codec->dtg_active_format) {
725         case FF_DTG_AFD_SAME:
726         default:
727             /* nothing to do */
728             break;
729         case FF_DTG_AFD_4_3:
730             aspect_ratio = 4.0 / 3.0;
731             break;
732         case FF_DTG_AFD_16_9:
733             aspect_ratio = 16.0 / 9.0;
734             break;
735         case FF_DTG_AFD_14_9:
736             aspect_ratio = 14.0 / 9.0;
737             break;
738         case FF_DTG_AFD_4_3_SP_14_9:
739             aspect_ratio = 14.0 / 9.0;
740             break;
741         case FF_DTG_AFD_16_9_SP_14_9:
742             aspect_ratio = 14.0 / 9.0;
743             break;
744         case FF_DTG_AFD_SP_4_3:
745             aspect_ratio = 4.0 / 3.0;
746             break;
747         }
748 #endif
749
750         if (is->subtitle_st)
751         {
752             if (is->subpq_size > 0)
753             {
754                 sp = &is->subpq[is->subpq_rindex];
755
756                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
757                 {
758                     SDL_LockYUVOverlay (vp->bmp);
759
760                     pict.data[0] = vp->bmp->pixels[0];
761                     pict.data[1] = vp->bmp->pixels[2];
762                     pict.data[2] = vp->bmp->pixels[1];
763
764                     pict.linesize[0] = vp->bmp->pitches[0];
765                     pict.linesize[1] = vp->bmp->pitches[2];
766                     pict.linesize[2] = vp->bmp->pitches[1];
767
768                     for (i = 0; i < sp->sub.num_rects; i++)
769                         blend_subrect(&pict, sp->sub.rects[i],
770                                       vp->bmp->w, vp->bmp->h);
771
772                     SDL_UnlockYUVOverlay (vp->bmp);
773                 }
774             }
775         }
776
777
778         /* XXX: we suppose the screen has a 1.0 pixel ratio */
779         height = is->height;
780         width = ((int)rint(height * aspect_ratio)) & ~1;
781         if (width > is->width) {
782             width = is->width;
783             height = ((int)rint(width / aspect_ratio)) & ~1;
784         }
785         x = (is->width - width) / 2;
786         y = (is->height - height) / 2;
787         if (!is->no_background) {
788             /* fill the background */
789             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
790         } else {
791             is->no_background = 0;
792         }
793         rect.x = is->xleft + x;
794         rect.y = is->ytop  + y;
795         rect.w = width;
796         rect.h = height;
797         SDL_DisplayYUVOverlay(vp->bmp, &rect);
798     } else {
799 #if 0
800         fill_rectangle(screen,
801                        is->xleft, is->ytop, is->width, is->height,
802                        QERGB(0x00, 0x00, 0x00));
803 #endif
804     }
805 }
806
807 static inline int compute_mod(int a, int b)
808 {
809     a = a % b;
810     if (a >= 0)
811         return a;
812     else
813         return a + b;
814 }
815
816 static void video_audio_display(VideoState *s)
817 {
818     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
819     int ch, channels, h, h2, bgcolor, fgcolor;
820     int16_t time_diff;
821     int rdft_bits, nb_freq;
822
823     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
824         ;
825     nb_freq= 1<<(rdft_bits-1);
826
827     /* compute display index : center on currently output samples */
828     channels = s->audio_st->codec->channels;
829     nb_display_channels = channels;
830     if (!s->paused) {
831         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
832         n = 2 * channels;
833         delay = audio_write_get_buf_size(s);
834         delay /= n;
835
836         /* to be more precise, we take into account the time spent since
837            the last buffer computation */
838         if (audio_callback_time) {
839             time_diff = av_gettime() - audio_callback_time;
840             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
841         }
842
843         delay += 2*data_used;
844         if (delay < data_used)
845             delay = data_used;
846
847         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
848         if(s->show_audio==1){
849             h= INT_MIN;
850             for(i=0; i<1000; i+=channels){
851                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
852                 int a= s->sample_array[idx];
853                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
854                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
855                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
856                 int score= a-d;
857                 if(h<score && (b^c)<0){
858                     h= score;
859                     i_start= idx;
860                 }
861             }
862         }
863
864         s->last_i_start = i_start;
865     } else {
866         i_start = s->last_i_start;
867     }
868
869     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
870     if(s->show_audio==1){
871         fill_rectangle(screen,
872                        s->xleft, s->ytop, s->width, s->height,
873                        bgcolor);
874
875         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
876
877         /* total height for one channel */
878         h = s->height / nb_display_channels;
879         /* graph height / 2 */
880         h2 = (h * 9) / 20;
881         for(ch = 0;ch < nb_display_channels; ch++) {
882             i = i_start + ch;
883             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
884             for(x = 0; x < s->width; x++) {
885                 y = (s->sample_array[i] * h2) >> 15;
886                 if (y < 0) {
887                     y = -y;
888                     ys = y1 - y;
889                 } else {
890                     ys = y1;
891                 }
892                 fill_rectangle(screen,
893                                s->xleft + x, ys, 1, y,
894                                fgcolor);
895                 i += channels;
896                 if (i >= SAMPLE_ARRAY_SIZE)
897                     i -= SAMPLE_ARRAY_SIZE;
898             }
899         }
900
901         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
902
903         for(ch = 1;ch < nb_display_channels; ch++) {
904             y = s->ytop + ch * h;
905             fill_rectangle(screen,
906                            s->xleft, y, s->width, 1,
907                            fgcolor);
908         }
909         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
910     }else{
911         nb_display_channels= FFMIN(nb_display_channels, 2);
912         if(rdft_bits != s->rdft_bits){
913             av_rdft_end(s->rdft);
914             av_free(s->rdft_data);
915             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
916             s->rdft_bits= rdft_bits;
917             s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
918         }
919         {
920             FFTSample *data[2];
921             for(ch = 0;ch < nb_display_channels; ch++) {
922                 data[ch] = s->rdft_data + 2*nb_freq*ch;
923                 i = i_start + ch;
924                 for(x = 0; x < 2*nb_freq; x++) {
925                     double w= (x-nb_freq)*(1.0/nb_freq);
926                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
927                     i += channels;
928                     if (i >= SAMPLE_ARRAY_SIZE)
929                         i -= SAMPLE_ARRAY_SIZE;
930                 }
931                 av_rdft_calc(s->rdft, data[ch]);
932             }
933             //least efficient way to do this, we should of course directly access it but its more than fast enough
934             for(y=0; y<s->height; y++){
935                 double w= 1/sqrt(nb_freq);
936                 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
937                 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
938                        + data[1][2*y+1]*data[1][2*y+1])) : a;
939                 a= FFMIN(a,255);
940                 b= FFMIN(b,255);
941                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
942
943                 fill_rectangle(screen,
944                             s->xpos, s->height-y, 1, 1,
945                             fgcolor);
946             }
947         }
948         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
949         s->xpos++;
950         if(s->xpos >= s->width)
951             s->xpos= s->xleft;
952     }
953 }
954
955 static int video_open(VideoState *is){
956     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
957     int w,h;
958
959     if(is_full_screen) flags |= SDL_FULLSCREEN;
960     else               flags |= SDL_RESIZABLE;
961
962     if (is_full_screen && fs_screen_width) {
963         w = fs_screen_width;
964         h = fs_screen_height;
965     } else if(!is_full_screen && screen_width){
966         w = screen_width;
967         h = screen_height;
968 #if CONFIG_AVFILTER
969     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
970         w = is->out_video_filter->inputs[0]->w;
971         h = is->out_video_filter->inputs[0]->h;
972 #else
973     }else if (is->video_st && is->video_st->codec->width){
974         w = is->video_st->codec->width;
975         h = is->video_st->codec->height;
976 #endif
977     } else {
978         w = 640;
979         h = 480;
980     }
981     if(screen && is->width == screen->w && screen->w == w
982        && is->height== screen->h && screen->h == h)
983         return 0;
984
985 #ifndef __APPLE__
986     screen = SDL_SetVideoMode(w, h, 0, flags);
987 #else
988     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
989     screen = SDL_SetVideoMode(w, h, 24, flags);
990 #endif
991     if (!screen) {
992         fprintf(stderr, "SDL: could not set video mode - exiting\n");
993         return -1;
994     }
995     if (!window_title)
996         window_title = input_filename;
997     SDL_WM_SetCaption(window_title, window_title);
998
999     is->width = screen->w;
1000     is->height = screen->h;
1001
1002     return 0;
1003 }
1004
1005 /* display the current picture, if any */
1006 static void video_display(VideoState *is)
1007 {
1008     if(!screen)
1009         video_open(cur_stream);
1010     if (is->audio_st && is->show_audio)
1011         video_audio_display(is);
1012     else if (is->video_st)
1013         video_image_display(is);
1014 }
1015
1016 static int refresh_thread(void *opaque)
1017 {
1018     VideoState *is= opaque;
1019     while(!is->abort_request){
1020         SDL_Event event;
1021         event.type = FF_REFRESH_EVENT;
1022         event.user.data1 = opaque;
1023         if(!is->refresh){
1024             is->refresh=1;
1025             SDL_PushEvent(&event);
1026         }
1027         usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1028     }
1029     return 0;
1030 }
1031
1032 /* get the current audio clock value */
1033 static double get_audio_clock(VideoState *is)
1034 {
1035     double pts;
1036     int hw_buf_size, bytes_per_sec;
1037     pts = is->audio_clock;
1038     hw_buf_size = audio_write_get_buf_size(is);
1039     bytes_per_sec = 0;
1040     if (is->audio_st) {
1041         bytes_per_sec = is->audio_st->codec->sample_rate *
1042             2 * is->audio_st->codec->channels;
1043     }
1044     if (bytes_per_sec)
1045         pts -= (double)hw_buf_size / bytes_per_sec;
1046     return pts;
1047 }
1048
1049 /* get the current video clock value */
1050 static double get_video_clock(VideoState *is)
1051 {
1052     if (is->paused) {
1053         return is->video_current_pts;
1054     } else {
1055         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1056     }
1057 }
1058
1059 /* get the current external clock value */
1060 static double get_external_clock(VideoState *is)
1061 {
1062     int64_t ti;
1063     ti = av_gettime();
1064     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1065 }
1066
1067 /* get the current master clock value */
1068 static double get_master_clock(VideoState *is)
1069 {
1070     double val;
1071
1072     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1073         if (is->video_st)
1074             val = get_video_clock(is);
1075         else
1076             val = get_audio_clock(is);
1077     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1078         if (is->audio_st)
1079             val = get_audio_clock(is);
1080         else
1081             val = get_video_clock(is);
1082     } else {
1083         val = get_external_clock(is);
1084     }
1085     return val;
1086 }
1087
1088 /* seek in the stream */
1089 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1090 {
1091     if (!is->seek_req) {
1092         is->seek_pos = pos;
1093         is->seek_rel = rel;
1094         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1095         if (seek_by_bytes)
1096             is->seek_flags |= AVSEEK_FLAG_BYTE;
1097         is->seek_req = 1;
1098     }
1099 }
1100
1101 /* pause or resume the video */
1102 static void stream_pause(VideoState *is)
1103 {
1104     if (is->paused) {
1105         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1106         if(is->read_pause_return != AVERROR(ENOSYS)){
1107             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1108         }
1109         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1110     }
1111     is->paused = !is->paused;
1112 }
1113
1114 static double compute_target_time(double frame_current_pts, VideoState *is)
1115 {
1116     double delay, sync_threshold, diff;
1117
1118     /* compute nominal delay */
1119     delay = frame_current_pts - is->frame_last_pts;
1120     if (delay <= 0 || delay >= 10.0) {
1121         /* if incorrect delay, use previous one */
1122         delay = is->frame_last_delay;
1123     } else {
1124         is->frame_last_delay = delay;
1125     }
1126     is->frame_last_pts = frame_current_pts;
1127
1128     /* update delay to follow master synchronisation source */
1129     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1130          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1131         /* if video is slave, we try to correct big delays by
1132            duplicating or deleting a frame */
1133         diff = get_video_clock(is) - get_master_clock(is);
1134
1135         /* skip or repeat frame. We take into account the
1136            delay to compute the threshold. I still don't know
1137            if it is the best guess */
1138         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1139         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1140             if (diff <= -sync_threshold)
1141                 delay = 0;
1142             else if (diff >= sync_threshold)
1143                 delay = 2 * delay;
1144         }
1145     }
1146     is->frame_timer += delay;
1147 #if defined(DEBUG_SYNC)
1148     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1149             delay, actual_delay, frame_current_pts, -diff);
1150 #endif
1151
1152     return is->frame_timer;
1153 }
1154
1155 /* called to display each frame */
1156 static void video_refresh_timer(void *opaque)
1157 {
1158     VideoState *is = opaque;
1159     VideoPicture *vp;
1160
1161     SubPicture *sp, *sp2;
1162
1163     if (is->video_st) {
1164 retry:
1165         if (is->pictq_size == 0) {
1166             //nothing to do, no picture to display in the que
1167         } else {
1168             double time= av_gettime()/1000000.0;
1169             double next_target;
1170             /* dequeue the picture */
1171             vp = &is->pictq[is->pictq_rindex];
1172
1173             if(time < vp->target_clock)
1174                 return;
1175             /* update current video pts */
1176             is->video_current_pts = vp->pts;
1177             is->video_current_pts_drift = is->video_current_pts - time;
1178             is->video_current_pos = vp->pos;
1179             if(is->pictq_size > 1){
1180                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1181                 assert(nextvp->target_clock >= vp->target_clock);
1182                 next_target= nextvp->target_clock;
1183             }else{
1184                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1185             }
1186             if(framedrop && time > next_target){
1187                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1188                 if(is->pictq_size > 1 || time > next_target + 0.5){
1189                     /* update queue size and signal for next picture */
1190                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1191                         is->pictq_rindex = 0;
1192
1193                     SDL_LockMutex(is->pictq_mutex);
1194                     is->pictq_size--;
1195                     SDL_CondSignal(is->pictq_cond);
1196                     SDL_UnlockMutex(is->pictq_mutex);
1197                     goto retry;
1198                 }
1199             }
1200
1201             if(is->subtitle_st) {
1202                 if (is->subtitle_stream_changed) {
1203                     SDL_LockMutex(is->subpq_mutex);
1204
1205                     while (is->subpq_size) {
1206                         free_subpicture(&is->subpq[is->subpq_rindex]);
1207
1208                         /* update queue size and signal for next picture */
1209                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1210                             is->subpq_rindex = 0;
1211
1212                         is->subpq_size--;
1213                     }
1214                     is->subtitle_stream_changed = 0;
1215
1216                     SDL_CondSignal(is->subpq_cond);
1217                     SDL_UnlockMutex(is->subpq_mutex);
1218                 } else {
1219                     if (is->subpq_size > 0) {
1220                         sp = &is->subpq[is->subpq_rindex];
1221
1222                         if (is->subpq_size > 1)
1223                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1224                         else
1225                             sp2 = NULL;
1226
1227                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1228                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1229                         {
1230                             free_subpicture(sp);
1231
1232                             /* update queue size and signal for next picture */
1233                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1234                                 is->subpq_rindex = 0;
1235
1236                             SDL_LockMutex(is->subpq_mutex);
1237                             is->subpq_size--;
1238                             SDL_CondSignal(is->subpq_cond);
1239                             SDL_UnlockMutex(is->subpq_mutex);
1240                         }
1241                     }
1242                 }
1243             }
1244
1245             /* display picture */
1246             if (!display_disable)
1247                 video_display(is);
1248
1249             /* update queue size and signal for next picture */
1250             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1251                 is->pictq_rindex = 0;
1252
1253             SDL_LockMutex(is->pictq_mutex);
1254             is->pictq_size--;
1255             SDL_CondSignal(is->pictq_cond);
1256             SDL_UnlockMutex(is->pictq_mutex);
1257         }
1258     } else if (is->audio_st) {
1259         /* draw the next audio frame */
1260
1261         /* if only audio stream, then display the audio bars (better
1262            than nothing, just to test the implementation */
1263
1264         /* display picture */
1265         if (!display_disable)
1266             video_display(is);
1267     }
1268     if (show_status) {
1269         static int64_t last_time;
1270         int64_t cur_time;
1271         int aqsize, vqsize, sqsize;
1272         double av_diff;
1273
1274         cur_time = av_gettime();
1275         if (!last_time || (cur_time - last_time) >= 30000) {
1276             aqsize = 0;
1277             vqsize = 0;
1278             sqsize = 0;
1279             if (is->audio_st)
1280                 aqsize = is->audioq.size;
1281             if (is->video_st)
1282                 vqsize = is->videoq.size;
1283             if (is->subtitle_st)
1284                 sqsize = is->subtitleq.size;
1285             av_diff = 0;
1286             if (is->audio_st && is->video_st)
1287                 av_diff = get_audio_clock(is) - get_video_clock(is);
1288             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1289                    get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1290             fflush(stdout);
1291             last_time = cur_time;
1292         }
1293     }
1294 }
1295
1296 static void stream_close(VideoState *is)
1297 {
1298     VideoPicture *vp;
1299     int i;
1300     /* XXX: use a special url_shutdown call to abort parse cleanly */
1301     is->abort_request = 1;
1302     SDL_WaitThread(is->parse_tid, NULL);
1303     SDL_WaitThread(is->refresh_tid, NULL);
1304
1305     /* free all pictures */
1306     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1307         vp = &is->pictq[i];
1308 #if CONFIG_AVFILTER
1309         if (vp->picref) {
1310             avfilter_unref_buffer(vp->picref);
1311             vp->picref = NULL;
1312         }
1313 #endif
1314         if (vp->bmp) {
1315             SDL_FreeYUVOverlay(vp->bmp);
1316             vp->bmp = NULL;
1317         }
1318     }
1319     SDL_DestroyMutex(is->pictq_mutex);
1320     SDL_DestroyCond(is->pictq_cond);
1321     SDL_DestroyMutex(is->subpq_mutex);
1322     SDL_DestroyCond(is->subpq_cond);
1323 #if !CONFIG_AVFILTER
1324     if (is->img_convert_ctx)
1325         sws_freeContext(is->img_convert_ctx);
1326 #endif
1327     av_free(is);
1328 }
1329
1330 static void do_exit(void)
1331 {
1332     if (cur_stream) {
1333         stream_close(cur_stream);
1334         cur_stream = NULL;
1335     }
1336     uninit_opts();
1337 #if CONFIG_AVFILTER
1338     avfilter_uninit();
1339 #endif
1340     if (show_status)
1341         printf("\n");
1342     SDL_Quit();
1343     av_log(NULL, AV_LOG_QUIET, "");
1344     exit(0);
1345 }
1346
1347 /* allocate a picture (needs to do that in main thread to avoid
1348    potential locking problems */
1349 static void alloc_picture(void *opaque)
1350 {
1351     VideoState *is = opaque;
1352     VideoPicture *vp;
1353
1354     vp = &is->pictq[is->pictq_windex];
1355
1356     if (vp->bmp)
1357         SDL_FreeYUVOverlay(vp->bmp);
1358
1359 #if CONFIG_AVFILTER
1360     if (vp->picref)
1361         avfilter_unref_buffer(vp->picref);
1362     vp->picref = NULL;
1363
1364     vp->width   = is->out_video_filter->inputs[0]->w;
1365     vp->height  = is->out_video_filter->inputs[0]->h;
1366     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1367 #else
1368     vp->width   = is->video_st->codec->width;
1369     vp->height  = is->video_st->codec->height;
1370     vp->pix_fmt = is->video_st->codec->pix_fmt;
1371 #endif
1372
1373     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1374                                    SDL_YV12_OVERLAY,
1375                                    screen);
1376     if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1377         /* SDL allocates a buffer smaller than requested if the video
1378          * overlay hardware is unable to support the requested size. */
1379         fprintf(stderr, "Error: the video system does not support an image\n"
1380                         "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1381                         "to reduce the image size.\n", vp->width, vp->height );
1382         do_exit();
1383     }
1384
1385     SDL_LockMutex(is->pictq_mutex);
1386     vp->allocated = 1;
1387     SDL_CondSignal(is->pictq_cond);
1388     SDL_UnlockMutex(is->pictq_mutex);
1389 }
1390
1391 /**
1392  *
1393  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1394  */
1395 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1396 {
1397     VideoPicture *vp;
1398     int dst_pix_fmt;
1399 #if CONFIG_AVFILTER
1400     AVPicture pict_src;
1401 #endif
1402     /* wait until we have space to put a new picture */
1403     SDL_LockMutex(is->pictq_mutex);
1404
1405     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1406         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1407
1408     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1409            !is->videoq.abort_request) {
1410         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1411     }
1412     SDL_UnlockMutex(is->pictq_mutex);
1413
1414     if (is->videoq.abort_request)
1415         return -1;
1416
1417     vp = &is->pictq[is->pictq_windex];
1418
1419     /* alloc or resize hardware picture buffer */
1420     if (!vp->bmp ||
1421 #if CONFIG_AVFILTER
1422         vp->width  != is->out_video_filter->inputs[0]->w ||
1423         vp->height != is->out_video_filter->inputs[0]->h) {
1424 #else
1425         vp->width != is->video_st->codec->width ||
1426         vp->height != is->video_st->codec->height) {
1427 #endif
1428         SDL_Event event;
1429
1430         vp->allocated = 0;
1431
1432         /* the allocation must be done in the main thread to avoid
1433            locking problems */
1434         event.type = FF_ALLOC_EVENT;
1435         event.user.data1 = is;
1436         SDL_PushEvent(&event);
1437
1438         /* wait until the picture is allocated */
1439         SDL_LockMutex(is->pictq_mutex);
1440         while (!vp->allocated && !is->videoq.abort_request) {
1441             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1442         }
1443         SDL_UnlockMutex(is->pictq_mutex);
1444
1445         if (is->videoq.abort_request)
1446             return -1;
1447     }
1448
1449     /* if the frame is not skipped, then display it */
1450     if (vp->bmp) {
1451         AVPicture pict;
1452 #if CONFIG_AVFILTER
1453         if(vp->picref)
1454             avfilter_unref_buffer(vp->picref);
1455         vp->picref = src_frame->opaque;
1456 #endif
1457
1458         /* get a pointer on the bitmap */
1459         SDL_LockYUVOverlay (vp->bmp);
1460
1461         dst_pix_fmt = PIX_FMT_YUV420P;
1462         memset(&pict,0,sizeof(AVPicture));
1463         pict.data[0] = vp->bmp->pixels[0];
1464         pict.data[1] = vp->bmp->pixels[2];
1465         pict.data[2] = vp->bmp->pixels[1];
1466
1467         pict.linesize[0] = vp->bmp->pitches[0];
1468         pict.linesize[1] = vp->bmp->pitches[2];
1469         pict.linesize[2] = vp->bmp->pitches[1];
1470
1471 #if CONFIG_AVFILTER
1472         pict_src.data[0] = src_frame->data[0];
1473         pict_src.data[1] = src_frame->data[1];
1474         pict_src.data[2] = src_frame->data[2];
1475
1476         pict_src.linesize[0] = src_frame->linesize[0];
1477         pict_src.linesize[1] = src_frame->linesize[1];
1478         pict_src.linesize[2] = src_frame->linesize[2];
1479
1480         //FIXME use direct rendering
1481         av_picture_copy(&pict, &pict_src,
1482                         vp->pix_fmt, vp->width, vp->height);
1483 #else
1484         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1485         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1486             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1487             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1488         if (is->img_convert_ctx == NULL) {
1489             fprintf(stderr, "Cannot initialize the conversion context\n");
1490             exit(1);
1491         }
1492         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1493                   0, vp->height, pict.data, pict.linesize);
1494 #endif
1495         /* update the bitmap content */
1496         SDL_UnlockYUVOverlay(vp->bmp);
1497
1498         vp->pts = pts;
1499         vp->pos = pos;
1500
1501         /* now we can update the picture count */
1502         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1503             is->pictq_windex = 0;
1504         SDL_LockMutex(is->pictq_mutex);
1505         vp->target_clock= compute_target_time(vp->pts, is);
1506
1507         is->pictq_size++;
1508         SDL_UnlockMutex(is->pictq_mutex);
1509     }
1510     return 0;
1511 }
1512
1513 /**
1514  * compute the exact PTS for the picture if it is omitted in the stream
1515  * @param pts1 the dts of the pkt / pts of the frame
1516  */
1517 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1518 {
1519     double frame_delay, pts;
1520
1521     pts = pts1;
1522
1523     if (pts != 0) {
1524         /* update video clock with pts, if present */
1525         is->video_clock = pts;
1526     } else {
1527         pts = is->video_clock;
1528     }
1529     /* update video clock for next frame */
1530     frame_delay = av_q2d(is->video_st->codec->time_base);
1531     /* for MPEG2, the frame can be repeated, so we update the
1532        clock accordingly */
1533     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1534     is->video_clock += frame_delay;
1535
1536 #if defined(DEBUG_SYNC) && 0
1537     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1538            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1539 #endif
1540     return queue_picture(is, src_frame, pts, pos);
1541 }
1542
1543 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1544 {
1545     int len1, got_picture, i;
1546
1547     if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1548         return -1;
1549
1550     if (pkt->data == flush_pkt.data) {
1551         avcodec_flush_buffers(is->video_st->codec);
1552
1553         SDL_LockMutex(is->pictq_mutex);
1554         //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1555         for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1556             is->pictq[i].target_clock= 0;
1557         }
1558         while (is->pictq_size && !is->videoq.abort_request) {
1559             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1560         }
1561         is->video_current_pos = -1;
1562         SDL_UnlockMutex(is->pictq_mutex);
1563
1564         init_pts_correction(&is->pts_ctx);
1565         is->frame_last_pts = AV_NOPTS_VALUE;
1566         is->frame_last_delay = 0;
1567         is->frame_timer = (double)av_gettime() / 1000000.0;
1568         is->skip_frames = 1;
1569         is->skip_frames_index = 0;
1570         return 0;
1571     }
1572
1573     is->video_st->codec->reordered_opaque = pkt->pts;
1574     len1 = avcodec_decode_video2(is->video_st->codec,
1575                                  frame, &got_picture,
1576                                  pkt);
1577
1578     if (got_picture) {
1579         if (decoder_reorder_pts == -1) {
1580             *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1581         } else if (decoder_reorder_pts) {
1582             *pts = frame->reordered_opaque;
1583         } else {
1584             *pts = pkt->dts;
1585         }
1586
1587         if (*pts == AV_NOPTS_VALUE) {
1588             *pts = 0;
1589         }
1590
1591         is->skip_frames_index += 1;
1592         if(is->skip_frames_index >= is->skip_frames){
1593             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1594             return 1;
1595         }
1596
1597     }
1598     return 0;
1599 }
1600
1601 #if CONFIG_AVFILTER
1602 typedef struct {
1603     VideoState *is;
1604     AVFrame *frame;
1605     int use_dr1;
1606 } FilterPriv;
1607
1608 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1609 {
1610     AVFilterContext *ctx = codec->opaque;
1611     AVFilterBufferRef  *ref;
1612     int perms = AV_PERM_WRITE;
1613     int i, w, h, stride[4];
1614     unsigned edge;
1615
1616     if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1617         perms |= AV_PERM_NEG_LINESIZES;
1618
1619     if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1620         if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1621         if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1622         if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623     }
1624     if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1625
1626     w = codec->width;
1627     h = codec->height;
1628     avcodec_align_dimensions2(codec, &w, &h, stride);
1629     edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1630     w += edge << 1;
1631     h += edge << 1;
1632
1633     if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1634         return -1;
1635
1636     ref->video->w = codec->width;
1637     ref->video->h = codec->height;
1638     for(i = 0; i < 4; i ++) {
1639         unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1640         unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1641
1642         if (ref->data[i]) {
1643             ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644         }
1645         pic->data[i]     = ref->data[i];
1646         pic->linesize[i] = ref->linesize[i];
1647     }
1648     pic->opaque = ref;
1649     pic->age    = INT_MAX;
1650     pic->type   = FF_BUFFER_TYPE_USER;
1651     pic->reordered_opaque = codec->reordered_opaque;
1652     if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1653     else           pic->pkt_pts = AV_NOPTS_VALUE;
1654     return 0;
1655 }
1656
1657 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1658 {
1659     memset(pic->data, 0, sizeof(pic->data));
1660     avfilter_unref_buffer(pic->opaque);
1661 }
1662
1663 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1664 {
1665     AVFilterBufferRef *ref = pic->opaque;
1666
1667     if (pic->data[0] == NULL) {
1668         pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1669         return codec->get_buffer(codec, pic);
1670     }
1671
1672     if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1673         (codec->pix_fmt != ref->format)) {
1674         av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1675         return -1;
1676     }
1677
1678     pic->reordered_opaque = codec->reordered_opaque;
1679     if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1680     else           pic->pkt_pts = AV_NOPTS_VALUE;
1681     return 0;
1682 }
1683
1684 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1685 {
1686     FilterPriv *priv = ctx->priv;
1687     AVCodecContext *codec;
1688     if(!opaque) return -1;
1689
1690     priv->is = opaque;
1691     codec    = priv->is->video_st->codec;
1692     codec->opaque = ctx;
1693     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1694         priv->use_dr1 = 1;
1695         codec->get_buffer     = input_get_buffer;
1696         codec->release_buffer = input_release_buffer;
1697         codec->reget_buffer   = input_reget_buffer;
1698     }
1699
1700     priv->frame = avcodec_alloc_frame();
1701
1702     return 0;
1703 }
1704
1705 static void input_uninit(AVFilterContext *ctx)
1706 {
1707     FilterPriv *priv = ctx->priv;
1708     av_free(priv->frame);
1709 }
1710
1711 static int input_request_frame(AVFilterLink *link)
1712 {
1713     FilterPriv *priv = link->src->priv;
1714     AVFilterBufferRef *picref;
1715     int64_t pts = 0;
1716     AVPacket pkt;
1717     int ret;
1718
1719     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1720         av_free_packet(&pkt);
1721     if (ret < 0)
1722         return -1;
1723
1724     if(priv->use_dr1) {
1725         picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1726     } else {
1727         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1728         av_image_copy(picref->data, picref->linesize,
1729                       priv->frame->data, priv->frame->linesize,
1730                       picref->format, link->w, link->h);
1731     }
1732     av_free_packet(&pkt);
1733
1734     picref->pts = pts;
1735     picref->pos = pkt.pos;
1736     picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1737     avfilter_start_frame(link, picref);
1738     avfilter_draw_slice(link, 0, link->h, 1);
1739     avfilter_end_frame(link);
1740
1741     return 0;
1742 }
1743
1744 static int input_query_formats(AVFilterContext *ctx)
1745 {
1746     FilterPriv *priv = ctx->priv;
1747     enum PixelFormat pix_fmts[] = {
1748         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1749     };
1750
1751     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1752     return 0;
1753 }
1754
1755 static int input_config_props(AVFilterLink *link)
1756 {
1757     FilterPriv *priv  = link->src->priv;
1758     AVCodecContext *c = priv->is->video_st->codec;
1759
1760     link->w = c->width;
1761     link->h = c->height;
1762     link->time_base = priv->is->video_st->time_base;
1763
1764     return 0;
1765 }
1766
1767 static AVFilter input_filter =
1768 {
1769     .name      = "ffplay_input",
1770
1771     .priv_size = sizeof(FilterPriv),
1772
1773     .init      = input_init,
1774     .uninit    = input_uninit,
1775
1776     .query_formats = input_query_formats,
1777
1778     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1779     .outputs   = (AVFilterPad[]) {{ .name = "default",
1780                                     .type = AVMEDIA_TYPE_VIDEO,
1781                                     .request_frame = input_request_frame,
1782                                     .config_props  = input_config_props, },
1783                                   { .name = NULL }},
1784 };
1785
1786 #endif  /* CONFIG_AVFILTER */
1787
1788 static int video_thread(void *arg)
1789 {
1790     VideoState *is = arg;
1791     AVFrame *frame= avcodec_alloc_frame();
1792     int64_t pts_int;
1793     double pts;
1794     int ret;
1795
1796 #if CONFIG_AVFILTER
1797     int64_t pos;
1798     char sws_flags_str[128];
1799     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1800     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1801     AVFilterGraph *graph = avfilter_graph_alloc();
1802     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1803     graph->scale_sws_opts = av_strdup(sws_flags_str);
1804
1805     if (avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1806                                      NULL, is, graph) < 0)
1807         goto the_end;
1808     if (avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1809                                      NULL, &ffsink_ctx, graph) < 0)
1810         goto the_end;
1811
1812     if(vfilters) {
1813         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1814         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1815
1816         outputs->name    = av_strdup("in");
1817         outputs->filter_ctx = filt_src;
1818         outputs->pad_idx = 0;
1819         outputs->next    = NULL;
1820
1821         inputs->name    = av_strdup("out");
1822         inputs->filter_ctx = filt_out;
1823         inputs->pad_idx = 0;
1824         inputs->next    = NULL;
1825
1826         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1827             goto the_end;
1828         av_freep(&vfilters);
1829     } else {
1830         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1831     }
1832
1833     if (avfilter_graph_config(graph, NULL) < 0)
1834         goto the_end;
1835
1836     is->out_video_filter = filt_out;
1837 #endif
1838
1839     for(;;) {
1840 #if !CONFIG_AVFILTER
1841         AVPacket pkt;
1842 #else
1843         AVFilterBufferRef *picref;
1844         AVRational tb;
1845 #endif
1846         while (is->paused && !is->videoq.abort_request)
1847             SDL_Delay(10);
1848 #if CONFIG_AVFILTER
1849         ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1850         if (picref) {
1851             pts_int = picref->pts;
1852             pos     = picref->pos;
1853             frame->opaque = picref;
1854         }
1855
1856         if (av_cmp_q(tb, is->video_st->time_base)) {
1857             av_unused int64_t pts1 = pts_int;
1858             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1859             av_dlog(NULL, "video_thread(): "
1860                     "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1861                     tb.num, tb.den, pts1,
1862                     is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1863         }
1864 #else
1865         ret = get_video_frame(is, frame, &pts_int, &pkt);
1866 #endif
1867
1868         if (ret < 0) goto the_end;
1869
1870         if (!ret)
1871             continue;
1872
1873         pts = pts_int*av_q2d(is->video_st->time_base);
1874
1875 #if CONFIG_AVFILTER
1876         ret = output_picture2(is, frame, pts, pos);
1877 #else
1878         ret = output_picture2(is, frame, pts,  pkt.pos);
1879         av_free_packet(&pkt);
1880 #endif
1881         if (ret < 0)
1882             goto the_end;
1883
1884         if (step)
1885             if (cur_stream)
1886                 stream_pause(cur_stream);
1887     }
1888  the_end:
1889 #if CONFIG_AVFILTER
1890     avfilter_graph_free(graph);
1891     av_freep(&graph);
1892 #endif
1893     av_free(frame);
1894     return 0;
1895 }
1896
1897 static int subtitle_thread(void *arg)
1898 {
1899     VideoState *is = arg;
1900     SubPicture *sp;
1901     AVPacket pkt1, *pkt = &pkt1;
1902     int len1, got_subtitle;
1903     double pts;
1904     int i, j;
1905     int r, g, b, y, u, v, a;
1906
1907     for(;;) {
1908         while (is->paused && !is->subtitleq.abort_request) {
1909             SDL_Delay(10);
1910         }
1911         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1912             break;
1913
1914         if(pkt->data == flush_pkt.data){
1915             avcodec_flush_buffers(is->subtitle_st->codec);
1916             continue;
1917         }
1918         SDL_LockMutex(is->subpq_mutex);
1919         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1920                !is->subtitleq.abort_request) {
1921             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1922         }
1923         SDL_UnlockMutex(is->subpq_mutex);
1924
1925         if (is->subtitleq.abort_request)
1926             goto the_end;
1927
1928         sp = &is->subpq[is->subpq_windex];
1929
1930        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1931            this packet, if any */
1932         pts = 0;
1933         if (pkt->pts != AV_NOPTS_VALUE)
1934             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1935
1936         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1937                                     &sp->sub, &got_subtitle,
1938                                     pkt);
1939 //            if (len1 < 0)
1940 //                break;
1941         if (got_subtitle && sp->sub.format == 0) {
1942             sp->pts = pts;
1943
1944             for (i = 0; i < sp->sub.num_rects; i++)
1945             {
1946                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1947                 {
1948                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1949                     y = RGB_TO_Y_CCIR(r, g, b);
1950                     u = RGB_TO_U_CCIR(r, g, b, 0);
1951                     v = RGB_TO_V_CCIR(r, g, b, 0);
1952                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1953                 }
1954             }
1955
1956             /* now we can update the picture count */
1957             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1958                 is->subpq_windex = 0;
1959             SDL_LockMutex(is->subpq_mutex);
1960             is->subpq_size++;
1961             SDL_UnlockMutex(is->subpq_mutex);
1962         }
1963         av_free_packet(pkt);
1964 //        if (step)
1965 //            if (cur_stream)
1966 //                stream_pause(cur_stream);
1967     }
1968  the_end:
1969     return 0;
1970 }
1971
1972 /* copy samples for viewing in editor window */
1973 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1974 {
1975     int size, len, channels;
1976
1977     channels = is->audio_st->codec->channels;
1978
1979     size = samples_size / sizeof(short);
1980     while (size > 0) {
1981         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1982         if (len > size)
1983             len = size;
1984         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1985         samples += len;
1986         is->sample_array_index += len;
1987         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1988             is->sample_array_index = 0;
1989         size -= len;
1990     }
1991 }
1992
1993 /* return the new audio buffer size (samples can be added or deleted
1994    to get better sync if video or external master clock) */
1995 static int synchronize_audio(VideoState *is, short *samples,
1996                              int samples_size1, double pts)
1997 {
1998     int n, samples_size;
1999     double ref_clock;
2000
2001     n = 2 * is->audio_st->codec->channels;
2002     samples_size = samples_size1;
2003
2004     /* if not master, then we try to remove or add samples to correct the clock */
2005     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2006          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2007         double diff, avg_diff;
2008         int wanted_size, min_size, max_size, nb_samples;
2009
2010         ref_clock = get_master_clock(is);
2011         diff = get_audio_clock(is) - ref_clock;
2012
2013         if (diff < AV_NOSYNC_THRESHOLD) {
2014             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2015             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2016                 /* not enough measures to have a correct estimate */
2017                 is->audio_diff_avg_count++;
2018             } else {
2019                 /* estimate the A-V difference */
2020                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2021
2022                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2023                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2024                     nb_samples = samples_size / n;
2025
2026                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2027                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2028                     if (wanted_size < min_size)
2029                         wanted_size = min_size;
2030                     else if (wanted_size > max_size)
2031                         wanted_size = max_size;
2032
2033                     /* add or remove samples to correction the synchro */
2034                     if (wanted_size < samples_size) {
2035                         /* remove samples */
2036                         samples_size = wanted_size;
2037                     } else if (wanted_size > samples_size) {
2038                         uint8_t *samples_end, *q;
2039                         int nb;
2040
2041                         /* add samples */
2042                         nb = (samples_size - wanted_size);
2043                         samples_end = (uint8_t *)samples + samples_size - n;
2044                         q = samples_end + n;
2045                         while (nb > 0) {
2046                             memcpy(q, samples_end, n);
2047                             q += n;
2048                             nb -= n;
2049                         }
2050                         samples_size = wanted_size;
2051                     }
2052                 }
2053 #if 0
2054                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2055                        diff, avg_diff, samples_size - samples_size1,
2056                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2057 #endif
2058             }
2059         } else {
2060             /* too big difference : may be initial PTS errors, so
2061                reset A-V filter */
2062             is->audio_diff_avg_count = 0;
2063             is->audio_diff_cum = 0;
2064         }
2065     }
2066
2067     return samples_size;
2068 }
2069
2070 /* decode one audio frame and returns its uncompressed size */
2071 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2072 {
2073     AVPacket *pkt_temp = &is->audio_pkt_temp;
2074     AVPacket *pkt = &is->audio_pkt;
2075     AVCodecContext *dec= is->audio_st->codec;
2076     int n, len1, data_size;
2077     double pts;
2078
2079     for(;;) {
2080         /* NOTE: the audio packet can contain several frames */
2081         while (pkt_temp->size > 0) {
2082             data_size = sizeof(is->audio_buf1);
2083             len1 = avcodec_decode_audio3(dec,
2084                                         (int16_t *)is->audio_buf1, &data_size,
2085                                         pkt_temp);
2086             if (len1 < 0) {
2087                 /* if error, we skip the frame */
2088                 pkt_temp->size = 0;
2089                 break;
2090             }
2091
2092             pkt_temp->data += len1;
2093             pkt_temp->size -= len1;
2094             if (data_size <= 0)
2095                 continue;
2096
2097             if (dec->sample_fmt != is->audio_src_fmt) {
2098                 if (is->reformat_ctx)
2099                     av_audio_convert_free(is->reformat_ctx);
2100                 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2101                                                          dec->sample_fmt, 1, NULL, 0);
2102                 if (!is->reformat_ctx) {
2103                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2104                         av_get_sample_fmt_name(dec->sample_fmt),
2105                         av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2106                         break;
2107                 }
2108                 is->audio_src_fmt= dec->sample_fmt;
2109             }
2110
2111             if (is->reformat_ctx) {
2112                 const void *ibuf[6]= {is->audio_buf1};
2113                 void *obuf[6]= {is->audio_buf2};
2114                 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2115                 int ostride[6]= {2};
2116                 int len= data_size/istride[0];
2117                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2118                     printf("av_audio_convert() failed\n");
2119                     break;
2120                 }
2121                 is->audio_buf= is->audio_buf2;
2122                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2123                           remove this legacy cruft */
2124                 data_size= len*2;
2125             }else{
2126                 is->audio_buf= is->audio_buf1;
2127             }
2128
2129             /* if no pts, then compute it */
2130             pts = is->audio_clock;
2131             *pts_ptr = pts;
2132             n = 2 * dec->channels;
2133             is->audio_clock += (double)data_size /
2134                 (double)(n * dec->sample_rate);
2135 #if defined(DEBUG_SYNC)
2136             {
2137                 static double last_clock;
2138                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2139                        is->audio_clock - last_clock,
2140                        is->audio_clock, pts);
2141                 last_clock = is->audio_clock;
2142             }
2143 #endif
2144             return data_size;
2145         }
2146
2147         /* free the current packet */
2148         if (pkt->data)
2149             av_free_packet(pkt);
2150
2151         if (is->paused || is->audioq.abort_request) {
2152             return -1;
2153         }
2154
2155         /* read next packet */
2156         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2157             return -1;
2158         if(pkt->data == flush_pkt.data){
2159             avcodec_flush_buffers(dec);
2160             continue;
2161         }
2162
2163         pkt_temp->data = pkt->data;
2164         pkt_temp->size = pkt->size;
2165
2166         /* if update the audio clock with the pts */
2167         if (pkt->pts != AV_NOPTS_VALUE) {
2168             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2169         }
2170     }
2171 }
2172
2173 /* get the current audio output buffer size, in samples. With SDL, we
2174    cannot have a precise information */
2175 static int audio_write_get_buf_size(VideoState *is)
2176 {
2177     return is->audio_buf_size - is->audio_buf_index;
2178 }
2179
2180
2181 /* prepare a new audio buffer */
2182 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2183 {
2184     VideoState *is = opaque;
2185     int audio_size, len1;
2186     double pts;
2187
2188     audio_callback_time = av_gettime();
2189
2190     while (len > 0) {
2191         if (is->audio_buf_index >= is->audio_buf_size) {
2192            audio_size = audio_decode_frame(is, &pts);
2193            if (audio_size < 0) {
2194                 /* if error, just output silence */
2195                is->audio_buf = is->audio_buf1;
2196                is->audio_buf_size = 1024;
2197                memset(is->audio_buf, 0, is->audio_buf_size);
2198            } else {
2199                if (is->show_audio)
2200                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2201                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2202                                               pts);
2203                is->audio_buf_size = audio_size;
2204            }
2205            is->audio_buf_index = 0;
2206         }
2207         len1 = is->audio_buf_size - is->audio_buf_index;
2208         if (len1 > len)
2209             len1 = len;
2210         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2211         len -= len1;
2212         stream += len1;
2213         is->audio_buf_index += len1;
2214     }
2215 }
2216
2217 /* open a given stream. Return 0 if OK */
2218 static int stream_component_open(VideoState *is, int stream_index)
2219 {
2220     AVFormatContext *ic = is->ic;
2221     AVCodecContext *avctx;
2222     AVCodec *codec;
2223     SDL_AudioSpec wanted_spec, spec;
2224
2225     if (stream_index < 0 || stream_index >= ic->nb_streams)
2226         return -1;
2227     avctx = ic->streams[stream_index]->codec;
2228
2229     /* prepare audio output */
2230     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2231         if (avctx->channels > 0) {
2232             avctx->request_channels = FFMIN(2, avctx->channels);
2233         } else {
2234             avctx->request_channels = 2;
2235         }
2236     }
2237
2238     codec = avcodec_find_decoder(avctx->codec_id);
2239     avctx->debug_mv = debug_mv;
2240     avctx->debug = debug;
2241     avctx->workaround_bugs = workaround_bugs;
2242     avctx->lowres = lowres;
2243     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2244     avctx->idct_algo= idct;
2245     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2246     avctx->skip_frame= skip_frame;
2247     avctx->skip_idct= skip_idct;
2248     avctx->skip_loop_filter= skip_loop_filter;
2249     avctx->error_recognition= error_recognition;
2250     avctx->error_concealment= error_concealment;
2251     avcodec_thread_init(avctx, thread_count);
2252
2253     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2254
2255     if (!codec ||
2256         avcodec_open(avctx, codec) < 0)
2257         return -1;
2258
2259     /* prepare audio output */
2260     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2261         wanted_spec.freq = avctx->sample_rate;
2262         wanted_spec.format = AUDIO_S16SYS;
2263         wanted_spec.channels = avctx->channels;
2264         wanted_spec.silence = 0;
2265         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2266         wanted_spec.callback = sdl_audio_callback;
2267         wanted_spec.userdata = is;
2268         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2269             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2270             return -1;
2271         }
2272         is->audio_hw_buf_size = spec.size;
2273         is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2274     }
2275
2276     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2277     switch(avctx->codec_type) {
2278     case AVMEDIA_TYPE_AUDIO:
2279         is->audio_stream = stream_index;
2280         is->audio_st = ic->streams[stream_index];
2281         is->audio_buf_size = 0;
2282         is->audio_buf_index = 0;
2283
2284         /* init averaging filter */
2285         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2286         is->audio_diff_avg_count = 0;
2287         /* since we do not have a precise anough audio fifo fullness,
2288            we correct audio sync only if larger than this threshold */
2289         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2290
2291         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2292         packet_queue_init(&is->audioq);
2293         SDL_PauseAudio(0);
2294         break;
2295     case AVMEDIA_TYPE_VIDEO:
2296         is->video_stream = stream_index;
2297         is->video_st = ic->streams[stream_index];
2298
2299 //        is->video_current_pts_time = av_gettime();
2300
2301         packet_queue_init(&is->videoq);
2302         is->video_tid = SDL_CreateThread(video_thread, is);
2303         break;
2304     case AVMEDIA_TYPE_SUBTITLE:
2305         is->subtitle_stream = stream_index;
2306         is->subtitle_st = ic->streams[stream_index];
2307         packet_queue_init(&is->subtitleq);
2308
2309         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2310         break;
2311     default:
2312         break;
2313     }
2314     return 0;
2315 }
2316
2317 static void stream_component_close(VideoState *is, int stream_index)
2318 {
2319     AVFormatContext *ic = is->ic;
2320     AVCodecContext *avctx;
2321
2322     if (stream_index < 0 || stream_index >= ic->nb_streams)
2323         return;
2324     avctx = ic->streams[stream_index]->codec;
2325
2326     switch(avctx->codec_type) {
2327     case AVMEDIA_TYPE_AUDIO:
2328         packet_queue_abort(&is->audioq);
2329
2330         SDL_CloseAudio();
2331
2332         packet_queue_end(&is->audioq);
2333         if (is->reformat_ctx)
2334             av_audio_convert_free(is->reformat_ctx);
2335         is->reformat_ctx = NULL;
2336         break;
2337     case AVMEDIA_TYPE_VIDEO:
2338         packet_queue_abort(&is->videoq);
2339
2340         /* note: we also signal this mutex to make sure we deblock the
2341            video thread in all cases */
2342         SDL_LockMutex(is->pictq_mutex);
2343         SDL_CondSignal(is->pictq_cond);
2344         SDL_UnlockMutex(is->pictq_mutex);
2345
2346         SDL_WaitThread(is->video_tid, NULL);
2347
2348         packet_queue_end(&is->videoq);
2349         break;
2350     case AVMEDIA_TYPE_SUBTITLE:
2351         packet_queue_abort(&is->subtitleq);
2352
2353         /* note: we also signal this mutex to make sure we deblock the
2354            video thread in all cases */
2355         SDL_LockMutex(is->subpq_mutex);
2356         is->subtitle_stream_changed = 1;
2357
2358         SDL_CondSignal(is->subpq_cond);
2359         SDL_UnlockMutex(is->subpq_mutex);
2360
2361         SDL_WaitThread(is->subtitle_tid, NULL);
2362
2363         packet_queue_end(&is->subtitleq);
2364         break;
2365     default:
2366         break;
2367     }
2368
2369     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2370     avcodec_close(avctx);
2371     switch(avctx->codec_type) {
2372     case AVMEDIA_TYPE_AUDIO:
2373         is->audio_st = NULL;
2374         is->audio_stream = -1;
2375         break;
2376     case AVMEDIA_TYPE_VIDEO:
2377         is->video_st = NULL;
2378         is->video_stream = -1;
2379         break;
2380     case AVMEDIA_TYPE_SUBTITLE:
2381         is->subtitle_st = NULL;
2382         is->subtitle_stream = -1;
2383         break;
2384     default:
2385         break;
2386     }
2387 }
2388
2389 /* since we have only one decoding thread, we can use a global
2390    variable instead of a thread local variable */
2391 static VideoState *global_video_state;
2392
2393 static int decode_interrupt_cb(void)
2394 {
2395     return (global_video_state && global_video_state->abort_request);
2396 }
2397
2398 /* this thread gets the stream from the disk or the network */
2399 static int decode_thread(void *arg)
2400 {
2401     VideoState *is = arg;
2402     AVFormatContext *ic;
2403     int err, i, ret;
2404     int st_index[AVMEDIA_TYPE_NB];
2405     AVPacket pkt1, *pkt = &pkt1;
2406     AVFormatParameters params, *ap = &params;
2407     int eof=0;
2408     int pkt_in_play_range = 0;
2409
2410     ic = avformat_alloc_context();
2411
2412     memset(st_index, -1, sizeof(st_index));
2413     is->video_stream = -1;
2414     is->audio_stream = -1;
2415     is->subtitle_stream = -1;
2416
2417     global_video_state = is;
2418     url_set_interrupt_cb(decode_interrupt_cb);
2419
2420     memset(ap, 0, sizeof(*ap));
2421
2422     ap->prealloced_context = 1;
2423     ap->width = frame_width;
2424     ap->height= frame_height;
2425     ap->time_base= (AVRational){1, 25};
2426     ap->pix_fmt = frame_pix_fmt;
2427
2428     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2429
2430     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2431     if (err < 0) {
2432         print_error(is->filename, err);
2433         ret = -1;
2434         goto fail;
2435     }
2436     is->ic = ic;
2437
2438     if(genpts)
2439         ic->flags |= AVFMT_FLAG_GENPTS;
2440
2441     err = av_find_stream_info(ic);
2442     if (err < 0) {
2443         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2444         ret = -1;
2445         goto fail;
2446     }
2447     if(ic->pb)
2448         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2449
2450     if(seek_by_bytes<0)
2451         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2452
2453     /* if seeking requested, we execute it */
2454     if (start_time != AV_NOPTS_VALUE) {
2455         int64_t timestamp;
2456
2457         timestamp = start_time;
2458         /* add the stream start time */
2459         if (ic->start_time != AV_NOPTS_VALUE)
2460             timestamp += ic->start_time;
2461         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2462         if (ret < 0) {
2463             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2464                     is->filename, (double)timestamp / AV_TIME_BASE);
2465         }
2466     }
2467
2468     for (i = 0; i < ic->nb_streams; i++)
2469         ic->streams[i]->discard = AVDISCARD_ALL;
2470     if (!video_disable)
2471         st_index[AVMEDIA_TYPE_VIDEO] =
2472             av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2473                                 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2474     if (!audio_disable)
2475         st_index[AVMEDIA_TYPE_AUDIO] =
2476             av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2477                                 wanted_stream[AVMEDIA_TYPE_AUDIO],
2478                                 st_index[AVMEDIA_TYPE_VIDEO],
2479                                 NULL, 0);
2480     if (!video_disable)
2481         st_index[AVMEDIA_TYPE_SUBTITLE] =
2482             av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2483                                 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2484                                 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2485                                  st_index[AVMEDIA_TYPE_AUDIO] :
2486                                  st_index[AVMEDIA_TYPE_VIDEO]),
2487                                 NULL, 0);
2488     if (show_status) {
2489         dump_format(ic, 0, is->filename, 0);
2490     }
2491
2492     /* open the streams */
2493     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2494         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2495     }
2496
2497     ret=-1;
2498     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2499         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2500     }
2501     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2502     if(ret<0) {
2503         if (!display_disable)
2504             is->show_audio = 2;
2505     }
2506
2507     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2508         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2509     }
2510
2511     if (is->video_stream < 0 && is->audio_stream < 0) {
2512         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2513         ret = -1;
2514         goto fail;
2515     }
2516
2517     for(;;) {
2518         if (is->abort_request)
2519             break;
2520         if (is->paused != is->last_paused) {
2521             is->last_paused = is->paused;
2522             if (is->paused)
2523                 is->read_pause_return= av_read_pause(ic);
2524             else
2525                 av_read_play(ic);
2526         }
2527 #if CONFIG_RTSP_DEMUXER
2528         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2529             /* wait 10 ms to avoid trying to get another packet */
2530             /* XXX: horrible */
2531             SDL_Delay(10);
2532             continue;
2533         }
2534 #endif
2535         if (is->seek_req) {
2536             int64_t seek_target= is->seek_pos;
2537             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2538             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2539 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2540 //      of the seek_pos/seek_rel variables
2541
2542             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2543             if (ret < 0) {
2544                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2545             }else{
2546                 if (is->audio_stream >= 0) {
2547                     packet_queue_flush(&is->audioq);
2548                     packet_queue_put(&is->audioq, &flush_pkt);
2549                 }
2550                 if (is->subtitle_stream >= 0) {
2551                     packet_queue_flush(&is->subtitleq);
2552                     packet_queue_put(&is->subtitleq, &flush_pkt);
2553                 }
2554                 if (is->video_stream >= 0) {
2555                     packet_queue_flush(&is->videoq);
2556                     packet_queue_put(&is->videoq, &flush_pkt);
2557                 }
2558             }
2559             is->seek_req = 0;
2560             eof= 0;
2561         }
2562
2563         /* if the queue are full, no need to read more */
2564         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2565             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2566                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2567                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2568             /* wait 10 ms */
2569             SDL_Delay(10);
2570             continue;
2571         }
2572         if(eof) {
2573             if(is->video_stream >= 0){
2574                 av_init_packet(pkt);
2575                 pkt->data=NULL;
2576                 pkt->size=0;
2577                 pkt->stream_index= is->video_stream;
2578                 packet_queue_put(&is->videoq, pkt);
2579             }
2580             SDL_Delay(10);
2581             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2582                 if(loop!=1 && (!loop || --loop)){
2583                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2584                 }else if(autoexit){
2585                     ret=AVERROR_EOF;
2586                     goto fail;
2587                 }
2588             }
2589             continue;
2590         }
2591         ret = av_read_frame(ic, pkt);
2592         if (ret < 0) {
2593             if (ret == AVERROR_EOF || url_feof(ic->pb))
2594                 eof=1;
2595             if (url_ferror(ic->pb))
2596                 break;
2597             SDL_Delay(100); /* wait for user event */
2598             continue;
2599         }
2600         /* check if packet is in play range specified by user, then queue, otherwise discard */
2601         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2602                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2603                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2604                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2605                 <= ((double)duration/1000000);
2606         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2607             packet_queue_put(&is->audioq, pkt);
2608         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2609             packet_queue_put(&is->videoq, pkt);
2610         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2611             packet_queue_put(&is->subtitleq, pkt);
2612         } else {
2613             av_free_packet(pkt);
2614         }
2615     }
2616     /* wait until the end */
2617     while (!is->abort_request) {
2618         SDL_Delay(100);
2619     }
2620
2621     ret = 0;
2622  fail:
2623     /* disable interrupting */
2624     global_video_state = NULL;
2625
2626     /* close each stream */
2627     if (is->audio_stream >= 0)
2628         stream_component_close(is, is->audio_stream);
2629     if (is->video_stream >= 0)
2630         stream_component_close(is, is->video_stream);
2631     if (is->subtitle_stream >= 0)
2632         stream_component_close(is, is->subtitle_stream);
2633     if (is->ic) {
2634         av_close_input_file(is->ic);
2635         is->ic = NULL; /* safety */
2636     }
2637     url_set_interrupt_cb(NULL);
2638
2639     if (ret != 0) {
2640         SDL_Event event;
2641
2642         event.type = FF_QUIT_EVENT;
2643         event.user.data1 = is;
2644         SDL_PushEvent(&event);
2645     }
2646     return 0;
2647 }
2648
2649 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2650 {
2651     VideoState *is;
2652
2653     is = av_mallocz(sizeof(VideoState));
2654     if (!is)
2655         return NULL;
2656     av_strlcpy(is->filename, filename, sizeof(is->filename));
2657     is->iformat = iformat;
2658     is->ytop = 0;
2659     is->xleft = 0;
2660
2661     /* start video display */
2662     is->pictq_mutex = SDL_CreateMutex();
2663     is->pictq_cond = SDL_CreateCond();
2664
2665     is->subpq_mutex = SDL_CreateMutex();
2666     is->subpq_cond = SDL_CreateCond();
2667
2668     is->av_sync_type = av_sync_type;
2669     is->parse_tid = SDL_CreateThread(decode_thread, is);
2670     if (!is->parse_tid) {
2671         av_free(is);
2672         return NULL;
2673     }
2674     return is;
2675 }
2676
2677 static void stream_cycle_channel(VideoState *is, int codec_type)
2678 {
2679     AVFormatContext *ic = is->ic;
2680     int start_index, stream_index;
2681     AVStream *st;
2682
2683     if (codec_type == AVMEDIA_TYPE_VIDEO)
2684         start_index = is->video_stream;
2685     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2686         start_index = is->audio_stream;
2687     else
2688         start_index = is->subtitle_stream;
2689     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2690         return;
2691     stream_index = start_index;
2692     for(;;) {
2693         if (++stream_index >= is->ic->nb_streams)
2694         {
2695             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2696             {
2697                 stream_index = -1;
2698                 goto the_end;
2699             } else
2700                 stream_index = 0;
2701         }
2702         if (stream_index == start_index)
2703             return;
2704         st = ic->streams[stream_index];
2705         if (st->codec->codec_type == codec_type) {
2706             /* check that parameters are OK */
2707             switch(codec_type) {
2708             case AVMEDIA_TYPE_AUDIO:
2709                 if (st->codec->sample_rate != 0 &&
2710                     st->codec->channels != 0)
2711                     goto the_end;
2712                 break;
2713             case AVMEDIA_TYPE_VIDEO:
2714             case AVMEDIA_TYPE_SUBTITLE:
2715                 goto the_end;
2716             default:
2717                 break;
2718             }
2719         }
2720     }
2721  the_end:
2722     stream_component_close(is, start_index);
2723     stream_component_open(is, stream_index);
2724 }
2725
2726
2727 static void toggle_full_screen(void)
2728 {
2729     is_full_screen = !is_full_screen;
2730     if (!fs_screen_width) {
2731         /* use default SDL method */
2732 //        SDL_WM_ToggleFullScreen(screen);
2733     }
2734     video_open(cur_stream);
2735 }
2736
2737 static void toggle_pause(void)
2738 {
2739     if (cur_stream)
2740         stream_pause(cur_stream);
2741     step = 0;
2742 }
2743
2744 static void step_to_next_frame(void)
2745 {
2746     if (cur_stream) {
2747         /* if the stream is paused unpause it, then step */
2748         if (cur_stream->paused)
2749             stream_pause(cur_stream);
2750     }
2751     step = 1;
2752 }
2753
2754 static void toggle_audio_display(void)
2755 {
2756     if (cur_stream) {
2757         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2758         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2759         fill_rectangle(screen,
2760                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2761                     bgcolor);
2762         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2763     }
2764 }
2765
2766 /* handle an event sent by the GUI */
2767 static void event_loop(void)
2768 {
2769     SDL_Event event;
2770     double incr, pos, frac;
2771
2772     for(;;) {
2773         double x;
2774         SDL_WaitEvent(&event);
2775         switch(event.type) {
2776         case SDL_KEYDOWN:
2777             if (exit_on_keydown) {
2778                 do_exit();
2779                 break;
2780             }
2781             switch(event.key.keysym.sym) {
2782             case SDLK_ESCAPE:
2783             case SDLK_q:
2784                 do_exit();
2785                 break;
2786             case SDLK_f:
2787                 toggle_full_screen();
2788                 break;
2789             case SDLK_p:
2790             case SDLK_SPACE:
2791                 toggle_pause();
2792                 break;
2793             case SDLK_s: //S: Step to next frame
2794                 step_to_next_frame();
2795                 break;
2796             case SDLK_a:
2797                 if (cur_stream)
2798                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2799                 break;
2800             case SDLK_v:
2801                 if (cur_stream)
2802                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2803                 break;
2804             case SDLK_t:
2805                 if (cur_stream)
2806                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2807                 break;
2808             case SDLK_w:
2809                 toggle_audio_display();
2810                 break;
2811             case SDLK_LEFT:
2812                 incr = -10.0;
2813                 goto do_seek;
2814             case SDLK_RIGHT:
2815                 incr = 10.0;
2816                 goto do_seek;
2817             case SDLK_UP:
2818                 incr = 60.0;
2819                 goto do_seek;
2820             case SDLK_DOWN:
2821                 incr = -60.0;
2822             do_seek:
2823                 if (cur_stream) {
2824                     if (seek_by_bytes) {
2825                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2826                             pos= cur_stream->video_current_pos;
2827                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2828                             pos= cur_stream->audio_pkt.pos;
2829                         }else
2830                             pos = url_ftell(cur_stream->ic->pb);
2831                         if (cur_stream->ic->bit_rate)
2832                             incr *= cur_stream->ic->bit_rate / 8.0;
2833                         else
2834                             incr *= 180000.0;
2835                         pos += incr;
2836                         stream_seek(cur_stream, pos, incr, 1);
2837                     } else {
2838                         pos = get_master_clock(cur_stream);
2839                         pos += incr;
2840                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2841                     }
2842                 }
2843                 break;
2844             default:
2845                 break;
2846             }
2847             break;
2848         case SDL_MOUSEBUTTONDOWN:
2849             if (exit_on_mousedown) {
2850                 do_exit();
2851                 break;
2852             }
2853         case SDL_MOUSEMOTION:
2854             if(event.type ==SDL_MOUSEBUTTONDOWN){
2855                 x= event.button.x;
2856             }else{
2857                 if(event.motion.state != SDL_PRESSED)
2858                     break;
2859                 x= event.motion.x;
2860             }
2861             if (cur_stream) {
2862                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2863                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2864                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2865                 }else{
2866                     int64_t ts;
2867                     int ns, hh, mm, ss;
2868                     int tns, thh, tmm, tss;
2869                     tns = cur_stream->ic->duration/1000000LL;
2870                     thh = tns/3600;
2871                     tmm = (tns%3600)/60;
2872                     tss = (tns%60);
2873                     frac = x/cur_stream->width;
2874                     ns = frac*tns;
2875                     hh = ns/3600;
2876                     mm = (ns%3600)/60;
2877                     ss = (ns%60);
2878                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2879                             hh, mm, ss, thh, tmm, tss);
2880                     ts = frac*cur_stream->ic->duration;
2881                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2882                         ts += cur_stream->ic->start_time;
2883                     stream_seek(cur_stream, ts, 0, 0);
2884                 }
2885             }
2886             break;
2887         case SDL_VIDEORESIZE:
2888             if (cur_stream) {
2889                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2890                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2891                 screen_width = cur_stream->width = event.resize.w;
2892                 screen_height= cur_stream->height= event.resize.h;
2893             }
2894             break;
2895         case SDL_QUIT:
2896         case FF_QUIT_EVENT:
2897             do_exit();
2898             break;
2899         case FF_ALLOC_EVENT:
2900             video_open(event.user.data1);
2901             alloc_picture(event.user.data1);
2902             break;
2903         case FF_REFRESH_EVENT:
2904             video_refresh_timer(event.user.data1);
2905             cur_stream->refresh=0;
2906             break;
2907         default:
2908             break;
2909         }
2910     }
2911 }
2912
2913 static void opt_frame_size(const char *arg)
2914 {
2915     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2916         fprintf(stderr, "Incorrect frame size\n");
2917         exit(1);
2918     }
2919     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2920         fprintf(stderr, "Frame size must be a multiple of 2\n");
2921         exit(1);
2922     }
2923 }
2924
2925 static int opt_width(const char *opt, const char *arg)
2926 {
2927     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2928     return 0;
2929 }
2930
2931 static int opt_height(const char *opt, const char *arg)
2932 {
2933     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2934     return 0;
2935 }
2936
2937 static void opt_format(const char *arg)
2938 {
2939     file_iformat = av_find_input_format(arg);
2940     if (!file_iformat) {
2941         fprintf(stderr, "Unknown input format: %s\n", arg);
2942         exit(1);
2943     }
2944 }
2945
2946 static void opt_frame_pix_fmt(const char *arg)
2947 {
2948     frame_pix_fmt = av_get_pix_fmt(arg);
2949 }
2950
2951 static int opt_sync(const char *opt, const char *arg)
2952 {
2953     if (!strcmp(arg, "audio"))
2954         av_sync_type = AV_SYNC_AUDIO_MASTER;
2955     else if (!strcmp(arg, "video"))
2956         av_sync_type = AV_SYNC_VIDEO_MASTER;
2957     else if (!strcmp(arg, "ext"))
2958         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2959     else {
2960         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2961         exit(1);
2962     }
2963     return 0;
2964 }
2965
2966 static int opt_seek(const char *opt, const char *arg)
2967 {
2968     start_time = parse_time_or_die(opt, arg, 1);
2969     return 0;
2970 }
2971
2972 static int opt_duration(const char *opt, const char *arg)
2973 {
2974     duration = parse_time_or_die(opt, arg, 1);
2975     return 0;
2976 }
2977
2978 static int opt_debug(const char *opt, const char *arg)
2979 {
2980     av_log_set_level(99);
2981     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2982     return 0;
2983 }
2984
2985 static int opt_vismv(const char *opt, const char *arg)
2986 {
2987     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2988     return 0;
2989 }
2990
2991 static int opt_thread_count(const char *opt, const char *arg)
2992 {
2993     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2994 #if !HAVE_THREADS
2995     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2996 #endif
2997     return 0;
2998 }
2999
3000 static const OptionDef options[] = {
3001 #include "cmdutils_common_opts.h"
3002     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3003     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3004     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3005     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3006     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3007     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3008     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3009     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3010     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3011     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3012     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3013     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3014     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3015     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3016     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3017     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3018     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3019     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3020     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3021     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3022     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3023     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3024     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3025     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3026     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3027     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3028     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3029     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3030     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3031     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3032     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3033     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3034     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3035     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3036     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3037     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3038     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3039 #if CONFIG_AVFILTER
3040     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3041 #endif
3042     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3043     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3044     { NULL, },
3045 };
3046
3047 static void show_usage(void)
3048 {
3049     printf("Simple media player\n");
3050     printf("usage: ffplay [options] input_file\n");
3051     printf("\n");
3052 }
3053
3054 static void show_help(void)
3055 {
3056     av_log_set_callback(log_callback_help);
3057     show_usage();
3058     show_help_options(options, "Main options:\n",
3059                       OPT_EXPERT, 0);
3060     show_help_options(options, "\nAdvanced options:\n",
3061                       OPT_EXPERT, OPT_EXPERT);
3062     printf("\n");
3063     av_opt_show2(avcodec_opts[0], NULL,
3064                  AV_OPT_FLAG_DECODING_PARAM, 0);
3065     printf("\n");
3066     av_opt_show2(avformat_opts, NULL,
3067                  AV_OPT_FLAG_DECODING_PARAM, 0);
3068 #if !CONFIG_AVFILTER
3069     printf("\n");
3070     av_opt_show2(sws_opts, NULL,
3071                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3072 #endif
3073     printf("\nWhile playing:\n"
3074            "q, ESC              quit\n"
3075            "f                   toggle full screen\n"
3076            "p, SPC              pause\n"
3077            "a                   cycle audio channel\n"
3078            "v                   cycle video channel\n"
3079            "t                   cycle subtitle channel\n"
3080            "w                   show audio waves\n"
3081            "s                   activate frame-step mode\n"
3082            "left/right          seek backward/forward 10 seconds\n"
3083            "down/up             seek backward/forward 1 minute\n"
3084            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3085            );
3086 }
3087
3088 static void opt_input_file(const char *filename)
3089 {
3090     if (input_filename) {
3091         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3092                 filename, input_filename);
3093         exit(1);
3094     }
3095     if (!strcmp(filename, "-"))
3096         filename = "pipe:";
3097     input_filename = filename;
3098 }
3099
3100 /* Called from the main */
3101 int main(int argc, char **argv)
3102 {
3103     int flags;
3104
3105     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3106
3107     /* register all codecs, demux and protocols */
3108     avcodec_register_all();
3109 #if CONFIG_AVDEVICE
3110     avdevice_register_all();
3111 #endif
3112 #if CONFIG_AVFILTER
3113     avfilter_register_all();
3114 #endif
3115     av_register_all();
3116
3117     init_opts();
3118
3119     show_banner();
3120
3121     parse_options(argc, argv, options, opt_input_file);
3122
3123     if (!input_filename) {
3124         show_usage();
3125         fprintf(stderr, "An input file must be specified\n");
3126         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3127         exit(1);
3128     }
3129
3130     if (display_disable) {
3131         video_disable = 1;
3132     }
3133     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3134 #if !defined(__MINGW32__) && !defined(__APPLE__)
3135     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3136 #endif
3137     if (SDL_Init (flags)) {
3138         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3139         exit(1);
3140     }
3141
3142     if (!display_disable) {
3143 #if HAVE_SDL_VIDEO_SIZE
3144         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3145         fs_screen_width = vi->current_w;
3146         fs_screen_height = vi->current_h;
3147 #endif
3148     }
3149
3150     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3151     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3152     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3153
3154     av_init_packet(&flush_pkt);
3155     flush_pkt.data= "FLUSH";
3156
3157     cur_stream = stream_open(input_filename, file_iformat);
3158
3159     event_loop();
3160
3161     /* never returns */
3162
3163     return 0;
3164 }