Factorize definition of the output_filter defined in both ffplay.c and
[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 "libavformat/avformat.h"
34 #include "libavdevice/avdevice.h"
35 #include "libswscale/swscale.h"
36 #include "libavcodec/audioconvert.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/avfft.h"
39
40 #if CONFIG_AVFILTER
41 # include "libavfilter/avfilter.h"
42 # include "libavfilter/avfiltergraph.h"
43 # include "libavfilter/graphparser.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_SYNC
62
63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
65 #define MIN_FRAMES 5
66
67 /* SDL audio buffer size, in samples. Should be small to have precise
68    A/V sync as SDL does not have hardware buffer fullness info. */
69 #define SDL_AUDIO_BUFFER_SIZE 1024
70
71 /* no AV sync correction is done if below the AV sync threshold */
72 #define AV_SYNC_THRESHOLD 0.01
73 /* no AV correction is done if too big error */
74 #define AV_NOSYNC_THRESHOLD 10.0
75
76 #define FRAME_SKIP_FACTOR 0.05
77
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
80
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB   20
83
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2*65536)
86
87 static int sws_flags = SWS_BICUBIC;
88
89 typedef struct PacketQueue {
90     AVPacketList *first_pkt, *last_pkt;
91     int nb_packets;
92     int size;
93     int abort_request;
94     SDL_mutex *mutex;
95     SDL_cond *cond;
96 } PacketQueue;
97
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
100
101 typedef struct VideoPicture {
102     double pts;                                  ///<presentation time stamp for this picture
103     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
104     int64_t pos;                                 ///<byte position in file
105     SDL_Overlay *bmp;
106     int width, height; /* source height & width */
107     int allocated;
108     enum PixelFormat pix_fmt;
109
110 #if CONFIG_AVFILTER
111     AVFilterBufferRef *picref;
112 #endif
113 } VideoPicture;
114
115 typedef struct SubPicture {
116     double pts; /* presentation time stamp for this picture */
117     AVSubtitle sub;
118 } SubPicture;
119
120 enum {
121     AV_SYNC_AUDIO_MASTER, /* default choice */
122     AV_SYNC_VIDEO_MASTER,
123     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
124 };
125
126 typedef struct VideoState {
127     SDL_Thread *parse_tid;
128     SDL_Thread *video_tid;
129     SDL_Thread *refresh_tid;
130     AVInputFormat *iformat;
131     int no_background;
132     int abort_request;
133     int paused;
134     int last_paused;
135     int seek_req;
136     int seek_flags;
137     int64_t seek_pos;
138     int64_t seek_rel;
139     int read_pause_return;
140     AVFormatContext *ic;
141     int dtg_active_format;
142
143     int audio_stream;
144
145     int av_sync_type;
146     double external_clock; /* external clock base */
147     int64_t external_clock_time;
148
149     double audio_clock;
150     double audio_diff_cum; /* used for AV difference average computation */
151     double audio_diff_avg_coef;
152     double audio_diff_threshold;
153     int audio_diff_avg_count;
154     AVStream *audio_st;
155     PacketQueue audioq;
156     int audio_hw_buf_size;
157     /* samples output by the codec. we reserve more space for avsync
158        compensation */
159     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
160     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161     uint8_t *audio_buf;
162     unsigned int audio_buf_size; /* in bytes */
163     int audio_buf_index; /* in bytes */
164     AVPacket audio_pkt_temp;
165     AVPacket audio_pkt;
166     enum SampleFormat audio_src_fmt;
167     AVAudioConvert *reformat_ctx;
168
169     int show_audio; /* if true, display audio samples */
170     int16_t sample_array[SAMPLE_ARRAY_SIZE];
171     int sample_array_index;
172     int last_i_start;
173     RDFTContext *rdft;
174     int rdft_bits;
175     FFTSample *rdft_data;
176     int xpos;
177
178     SDL_Thread *subtitle_tid;
179     int subtitle_stream;
180     int subtitle_stream_changed;
181     AVStream *subtitle_st;
182     PacketQueue subtitleq;
183     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
184     int subpq_size, subpq_rindex, subpq_windex;
185     SDL_mutex *subpq_mutex;
186     SDL_cond *subpq_cond;
187
188     double frame_timer;
189     double frame_last_pts;
190     double frame_last_delay;
191     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
192     int video_stream;
193     AVStream *video_st;
194     PacketQueue videoq;
195     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
196     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
197     int64_t video_current_pos;                   ///<current displayed file pos
198     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
199     int pictq_size, pictq_rindex, pictq_windex;
200     SDL_mutex *pictq_mutex;
201     SDL_cond *pictq_cond;
202 #if !CONFIG_AVFILTER
203     struct SwsContext *img_convert_ctx;
204 #endif
205
206     //    QETimer *video_timer;
207     char filename[1024];
208     int width, height, xleft, ytop;
209
210     PtsCorrectionContext pts_ctx;
211
212 #if CONFIG_AVFILTER
213     AVFilterContext *out_video_filter;          ///<the last filter in the video chain
214 #endif
215
216     float skip_frames;
217     float skip_frames_index;
218     int refresh;
219 } VideoState;
220
221 static void show_help(void);
222 static int audio_write_get_buf_size(VideoState *is);
223
224 /* options specified by the user */
225 static AVInputFormat *file_iformat;
226 static const char *input_filename;
227 static const char *window_title;
228 static int fs_screen_width;
229 static int fs_screen_height;
230 static int screen_width = 0;
231 static int screen_height = 0;
232 static int frame_width = 0;
233 static int frame_height = 0;
234 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
235 static int audio_disable;
236 static int video_disable;
237 static int wanted_stream[AVMEDIA_TYPE_NB]={
238     [AVMEDIA_TYPE_AUDIO]=-1,
239     [AVMEDIA_TYPE_VIDEO]=-1,
240     [AVMEDIA_TYPE_SUBTITLE]=-1,
241 };
242 static int seek_by_bytes=-1;
243 static int display_disable;
244 static int show_status = 1;
245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
246 static int64_t start_time = AV_NOPTS_VALUE;
247 static int64_t duration = AV_NOPTS_VALUE;
248 static int debug = 0;
249 static int debug_mv = 0;
250 static int step = 0;
251 static int thread_count = 1;
252 static int workaround_bugs = 1;
253 static int fast = 0;
254 static int genpts = 0;
255 static int lowres = 0;
256 static int idct = FF_IDCT_AUTO;
257 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
260 static int error_recognition = FF_ER_CAREFUL;
261 static int error_concealment = 3;
262 static int decoder_reorder_pts= -1;
263 static int autoexit;
264 static int exit_on_keydown;
265 static int exit_on_mousedown;
266 static int loop=1;
267 static int framedrop=1;
268
269 static int rdftspeed=20;
270 #if CONFIG_AVFILTER
271 static char *vfilters = NULL;
272 #endif
273
274 /* current context */
275 static int is_full_screen;
276 static VideoState *cur_stream;
277 static int64_t audio_callback_time;
278
279 static AVPacket flush_pkt;
280
281 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
284
285 static SDL_Surface *screen;
286
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
288
289 /* packet queue handling */
290 static void packet_queue_init(PacketQueue *q)
291 {
292     memset(q, 0, sizeof(PacketQueue));
293     q->mutex = SDL_CreateMutex();
294     q->cond = SDL_CreateCond();
295     packet_queue_put(q, &flush_pkt);
296 }
297
298 static void packet_queue_flush(PacketQueue *q)
299 {
300     AVPacketList *pkt, *pkt1;
301
302     SDL_LockMutex(q->mutex);
303     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
304         pkt1 = pkt->next;
305         av_free_packet(&pkt->pkt);
306         av_freep(&pkt);
307     }
308     q->last_pkt = NULL;
309     q->first_pkt = NULL;
310     q->nb_packets = 0;
311     q->size = 0;
312     SDL_UnlockMutex(q->mutex);
313 }
314
315 static void packet_queue_end(PacketQueue *q)
316 {
317     packet_queue_flush(q);
318     SDL_DestroyMutex(q->mutex);
319     SDL_DestroyCond(q->cond);
320 }
321
322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
323 {
324     AVPacketList *pkt1;
325
326     /* duplicate the packet */
327     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
328         return -1;
329
330     pkt1 = av_malloc(sizeof(AVPacketList));
331     if (!pkt1)
332         return -1;
333     pkt1->pkt = *pkt;
334     pkt1->next = NULL;
335
336
337     SDL_LockMutex(q->mutex);
338
339     if (!q->last_pkt)
340
341         q->first_pkt = pkt1;
342     else
343         q->last_pkt->next = pkt1;
344     q->last_pkt = pkt1;
345     q->nb_packets++;
346     q->size += pkt1->pkt.size + sizeof(*pkt1);
347     /* XXX: should duplicate packet data in DV case */
348     SDL_CondSignal(q->cond);
349
350     SDL_UnlockMutex(q->mutex);
351     return 0;
352 }
353
354 static void packet_queue_abort(PacketQueue *q)
355 {
356     SDL_LockMutex(q->mutex);
357
358     q->abort_request = 1;
359
360     SDL_CondSignal(q->cond);
361
362     SDL_UnlockMutex(q->mutex);
363 }
364
365 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367 {
368     AVPacketList *pkt1;
369     int ret;
370
371     SDL_LockMutex(q->mutex);
372
373     for(;;) {
374         if (q->abort_request) {
375             ret = -1;
376             break;
377         }
378
379         pkt1 = q->first_pkt;
380         if (pkt1) {
381             q->first_pkt = pkt1->next;
382             if (!q->first_pkt)
383                 q->last_pkt = NULL;
384             q->nb_packets--;
385             q->size -= pkt1->pkt.size + sizeof(*pkt1);
386             *pkt = pkt1->pkt;
387             av_free(pkt1);
388             ret = 1;
389             break;
390         } else if (!block) {
391             ret = 0;
392             break;
393         } else {
394             SDL_CondWait(q->cond, q->mutex);
395         }
396     }
397     SDL_UnlockMutex(q->mutex);
398     return ret;
399 }
400
401 static inline void fill_rectangle(SDL_Surface *screen,
402                                   int x, int y, int w, int h, int color)
403 {
404     SDL_Rect rect;
405     rect.x = x;
406     rect.y = y;
407     rect.w = w;
408     rect.h = h;
409     SDL_FillRect(screen, &rect, color);
410 }
411
412 #if 0
413 /* draw only the border of a rectangle */
414 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
415 {
416     int w1, w2, h1, h2;
417
418     /* fill the background */
419     w1 = x;
420     if (w1 < 0)
421         w1 = 0;
422     w2 = s->width - (x + w);
423     if (w2 < 0)
424         w2 = 0;
425     h1 = y;
426     if (h1 < 0)
427         h1 = 0;
428     h2 = s->height - (y + h);
429     if (h2 < 0)
430         h2 = 0;
431     fill_rectangle(screen,
432                    s->xleft, s->ytop,
433                    w1, s->height,
434                    color);
435     fill_rectangle(screen,
436                    s->xleft + s->width - w2, s->ytop,
437                    w2, s->height,
438                    color);
439     fill_rectangle(screen,
440                    s->xleft + w1, s->ytop,
441                    s->width - w1 - w2, h1,
442                    color);
443     fill_rectangle(screen,
444                    s->xleft + w1, s->ytop + s->height - h2,
445                    s->width - w1 - w2, h2,
446                    color);
447 }
448 #endif
449
450 #define ALPHA_BLEND(a, oldp, newp, s)\
451 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
452
453 #define RGBA_IN(r, g, b, a, s)\
454 {\
455     unsigned int v = ((const uint32_t *)(s))[0];\
456     a = (v >> 24) & 0xff;\
457     r = (v >> 16) & 0xff;\
458     g = (v >> 8) & 0xff;\
459     b = v & 0xff;\
460 }
461
462 #define YUVA_IN(y, u, v, a, s, pal)\
463 {\
464     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
465     a = (val >> 24) & 0xff;\
466     y = (val >> 16) & 0xff;\
467     u = (val >> 8) & 0xff;\
468     v = val & 0xff;\
469 }
470
471 #define YUVA_OUT(d, y, u, v, a)\
472 {\
473     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
474 }
475
476
477 #define BPP 1
478
479 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
480 {
481     int wrap, wrap3, width2, skip2;
482     int y, u, v, a, u1, v1, a1, w, h;
483     uint8_t *lum, *cb, *cr;
484     const uint8_t *p;
485     const uint32_t *pal;
486     int dstx, dsty, dstw, dsth;
487
488     dstw = av_clip(rect->w, 0, imgw);
489     dsth = av_clip(rect->h, 0, imgh);
490     dstx = av_clip(rect->x, 0, imgw - dstw);
491     dsty = av_clip(rect->y, 0, imgh - dsth);
492     lum = dst->data[0] + dsty * dst->linesize[0];
493     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
494     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
495
496     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
497     skip2 = dstx >> 1;
498     wrap = dst->linesize[0];
499     wrap3 = rect->pict.linesize[0];
500     p = rect->pict.data[0];
501     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
502
503     if (dsty & 1) {
504         lum += dstx;
505         cb += skip2;
506         cr += skip2;
507
508         if (dstx & 1) {
509             YUVA_IN(y, u, v, a, p, pal);
510             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
511             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
512             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
513             cb++;
514             cr++;
515             lum++;
516             p += BPP;
517         }
518         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
519             YUVA_IN(y, u, v, a, p, pal);
520             u1 = u;
521             v1 = v;
522             a1 = a;
523             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524
525             YUVA_IN(y, u, v, a, p + BPP, pal);
526             u1 += u;
527             v1 += v;
528             a1 += a;
529             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
530             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
532             cb++;
533             cr++;
534             p += 2 * BPP;
535             lum += 2;
536         }
537         if (w) {
538             YUVA_IN(y, u, v, a, p, pal);
539             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
541             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
542             p++;
543             lum++;
544         }
545         p += wrap3 - dstw * BPP;
546         lum += wrap - dstw - dstx;
547         cb += dst->linesize[1] - width2 - skip2;
548         cr += dst->linesize[2] - width2 - skip2;
549     }
550     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
551         lum += dstx;
552         cb += skip2;
553         cr += skip2;
554
555         if (dstx & 1) {
556             YUVA_IN(y, u, v, a, p, pal);
557             u1 = u;
558             v1 = v;
559             a1 = a;
560             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
561             p += wrap3;
562             lum += wrap;
563             YUVA_IN(y, u, v, a, p, pal);
564             u1 += u;
565             v1 += v;
566             a1 += a;
567             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
569             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
570             cb++;
571             cr++;
572             p += -wrap3 + BPP;
573             lum += -wrap + 1;
574         }
575         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
576             YUVA_IN(y, u, v, a, p, pal);
577             u1 = u;
578             v1 = v;
579             a1 = a;
580             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581
582             YUVA_IN(y, u, v, a, p + BPP, pal);
583             u1 += u;
584             v1 += v;
585             a1 += a;
586             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
587             p += wrap3;
588             lum += wrap;
589
590             YUVA_IN(y, u, v, a, p, pal);
591             u1 += u;
592             v1 += v;
593             a1 += a;
594             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595
596             YUVA_IN(y, u, v, a, p + BPP, pal);
597             u1 += u;
598             v1 += v;
599             a1 += a;
600             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
601
602             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
603             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
604
605             cb++;
606             cr++;
607             p += -wrap3 + 2 * BPP;
608             lum += -wrap + 2;
609         }
610         if (w) {
611             YUVA_IN(y, u, v, a, p, pal);
612             u1 = u;
613             v1 = v;
614             a1 = a;
615             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616             p += wrap3;
617             lum += wrap;
618             YUVA_IN(y, u, v, a, p, pal);
619             u1 += u;
620             v1 += v;
621             a1 += a;
622             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
624             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
625             cb++;
626             cr++;
627             p += -wrap3 + BPP;
628             lum += -wrap + 1;
629         }
630         p += wrap3 + (wrap3 - dstw * BPP);
631         lum += wrap + (wrap - dstw - dstx);
632         cb += dst->linesize[1] - width2 - skip2;
633         cr += dst->linesize[2] - width2 - skip2;
634     }
635     /* handle odd height */
636     if (h) {
637         lum += dstx;
638         cb += skip2;
639         cr += skip2;
640
641         if (dstx & 1) {
642             YUVA_IN(y, u, v, a, p, pal);
643             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
644             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
645             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
646             cb++;
647             cr++;
648             lum++;
649             p += BPP;
650         }
651         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
652             YUVA_IN(y, u, v, a, p, pal);
653             u1 = u;
654             v1 = v;
655             a1 = a;
656             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
657
658             YUVA_IN(y, u, v, a, p + BPP, pal);
659             u1 += u;
660             v1 += v;
661             a1 += a;
662             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
663             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
664             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
665             cb++;
666             cr++;
667             p += 2 * BPP;
668             lum += 2;
669         }
670         if (w) {
671             YUVA_IN(y, u, v, a, p, pal);
672             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
673             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
674             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
675         }
676     }
677 }
678
679 static void free_subpicture(SubPicture *sp)
680 {
681     avsubtitle_free(&sp->sub);
682 }
683
684 static void video_image_display(VideoState *is)
685 {
686     VideoPicture *vp;
687     SubPicture *sp;
688     AVPicture pict;
689     float aspect_ratio;
690     int width, height, x, y;
691     SDL_Rect rect;
692     int i;
693
694     vp = &is->pictq[is->pictq_rindex];
695     if (vp->bmp) {
696 #if CONFIG_AVFILTER
697          if (vp->picref->video->pixel_aspect.num == 0)
698              aspect_ratio = 0;
699          else
700              aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
701 #else
702
703         /* XXX: use variable in the frame */
704         if (is->video_st->sample_aspect_ratio.num)
705             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
706         else if (is->video_st->codec->sample_aspect_ratio.num)
707             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
708         else
709             aspect_ratio = 0;
710 #endif
711         if (aspect_ratio <= 0.0)
712             aspect_ratio = 1.0;
713         aspect_ratio *= (float)vp->width / (float)vp->height;
714         /* if an active format is indicated, then it overrides the
715            mpeg format */
716 #if 0
717         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
718             is->dtg_active_format = is->video_st->codec->dtg_active_format;
719             printf("dtg_active_format=%d\n", is->dtg_active_format);
720         }
721 #endif
722 #if 0
723         switch(is->video_st->codec->dtg_active_format) {
724         case FF_DTG_AFD_SAME:
725         default:
726             /* nothing to do */
727             break;
728         case FF_DTG_AFD_4_3:
729             aspect_ratio = 4.0 / 3.0;
730             break;
731         case FF_DTG_AFD_16_9:
732             aspect_ratio = 16.0 / 9.0;
733             break;
734         case FF_DTG_AFD_14_9:
735             aspect_ratio = 14.0 / 9.0;
736             break;
737         case FF_DTG_AFD_4_3_SP_14_9:
738             aspect_ratio = 14.0 / 9.0;
739             break;
740         case FF_DTG_AFD_16_9_SP_14_9:
741             aspect_ratio = 14.0 / 9.0;
742             break;
743         case FF_DTG_AFD_SP_4_3:
744             aspect_ratio = 4.0 / 3.0;
745             break;
746         }
747 #endif
748
749         if (is->subtitle_st)
750         {
751             if (is->subpq_size > 0)
752             {
753                 sp = &is->subpq[is->subpq_rindex];
754
755                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
756                 {
757                     SDL_LockYUVOverlay (vp->bmp);
758
759                     pict.data[0] = vp->bmp->pixels[0];
760                     pict.data[1] = vp->bmp->pixels[2];
761                     pict.data[2] = vp->bmp->pixels[1];
762
763                     pict.linesize[0] = vp->bmp->pitches[0];
764                     pict.linesize[1] = vp->bmp->pitches[2];
765                     pict.linesize[2] = vp->bmp->pitches[1];
766
767                     for (i = 0; i < sp->sub.num_rects; i++)
768                         blend_subrect(&pict, sp->sub.rects[i],
769                                       vp->bmp->w, vp->bmp->h);
770
771                     SDL_UnlockYUVOverlay (vp->bmp);
772                 }
773             }
774         }
775
776
777         /* XXX: we suppose the screen has a 1.0 pixel ratio */
778         height = is->height;
779         width = ((int)rint(height * aspect_ratio)) & ~1;
780         if (width > is->width) {
781             width = is->width;
782             height = ((int)rint(width / aspect_ratio)) & ~1;
783         }
784         x = (is->width - width) / 2;
785         y = (is->height - height) / 2;
786         if (!is->no_background) {
787             /* fill the background */
788             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
789         } else {
790             is->no_background = 0;
791         }
792         rect.x = is->xleft + x;
793         rect.y = is->ytop  + y;
794         rect.w = width;
795         rect.h = height;
796         SDL_DisplayYUVOverlay(vp->bmp, &rect);
797     } else {
798 #if 0
799         fill_rectangle(screen,
800                        is->xleft, is->ytop, is->width, is->height,
801                        QERGB(0x00, 0x00, 0x00));
802 #endif
803     }
804 }
805
806 static inline int compute_mod(int a, int b)
807 {
808     a = a % b;
809     if (a >= 0)
810         return a;
811     else
812         return a + b;
813 }
814
815 static void video_audio_display(VideoState *s)
816 {
817     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
818     int ch, channels, h, h2, bgcolor, fgcolor;
819     int16_t time_diff;
820     int rdft_bits, nb_freq;
821
822     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
823         ;
824     nb_freq= 1<<(rdft_bits-1);
825
826     /* compute display index : center on currently output samples */
827     channels = s->audio_st->codec->channels;
828     nb_display_channels = channels;
829     if (!s->paused) {
830         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
831         n = 2 * channels;
832         delay = audio_write_get_buf_size(s);
833         delay /= n;
834
835         /* to be more precise, we take into account the time spent since
836            the last buffer computation */
837         if (audio_callback_time) {
838             time_diff = av_gettime() - audio_callback_time;
839             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
840         }
841
842         delay += 2*data_used;
843         if (delay < data_used)
844             delay = data_used;
845
846         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
847         if(s->show_audio==1){
848             h= INT_MIN;
849             for(i=0; i<1000; i+=channels){
850                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
851                 int a= s->sample_array[idx];
852                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
853                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
854                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
855                 int score= a-d;
856                 if(h<score && (b^c)<0){
857                     h= score;
858                     i_start= idx;
859                 }
860             }
861         }
862
863         s->last_i_start = i_start;
864     } else {
865         i_start = s->last_i_start;
866     }
867
868     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
869     if(s->show_audio==1){
870         fill_rectangle(screen,
871                        s->xleft, s->ytop, s->width, s->height,
872                        bgcolor);
873
874         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
875
876         /* total height for one channel */
877         h = s->height / nb_display_channels;
878         /* graph height / 2 */
879         h2 = (h * 9) / 20;
880         for(ch = 0;ch < nb_display_channels; ch++) {
881             i = i_start + ch;
882             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
883             for(x = 0; x < s->width; x++) {
884                 y = (s->sample_array[i] * h2) >> 15;
885                 if (y < 0) {
886                     y = -y;
887                     ys = y1 - y;
888                 } else {
889                     ys = y1;
890                 }
891                 fill_rectangle(screen,
892                                s->xleft + x, ys, 1, y,
893                                fgcolor);
894                 i += channels;
895                 if (i >= SAMPLE_ARRAY_SIZE)
896                     i -= SAMPLE_ARRAY_SIZE;
897             }
898         }
899
900         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
901
902         for(ch = 1;ch < nb_display_channels; ch++) {
903             y = s->ytop + ch * h;
904             fill_rectangle(screen,
905                            s->xleft, y, s->width, 1,
906                            fgcolor);
907         }
908         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
909     }else{
910         nb_display_channels= FFMIN(nb_display_channels, 2);
911         if(rdft_bits != s->rdft_bits){
912             av_rdft_end(s->rdft);
913             av_free(s->rdft_data);
914             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
915             s->rdft_bits= rdft_bits;
916             s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
917         }
918         {
919             FFTSample *data[2];
920             for(ch = 0;ch < nb_display_channels; ch++) {
921                 data[ch] = s->rdft_data + 2*nb_freq*ch;
922                 i = i_start + ch;
923                 for(x = 0; x < 2*nb_freq; x++) {
924                     double w= (x-nb_freq)*(1.0/nb_freq);
925                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
926                     i += channels;
927                     if (i >= SAMPLE_ARRAY_SIZE)
928                         i -= SAMPLE_ARRAY_SIZE;
929                 }
930                 av_rdft_calc(s->rdft, data[ch]);
931             }
932             //least efficient way to do this, we should of course directly access it but its more than fast enough
933             for(y=0; y<s->height; y++){
934                 double w= 1/sqrt(nb_freq);
935                 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]));
936                 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
937                        + data[1][2*y+1]*data[1][2*y+1])) : a;
938                 a= FFMIN(a,255);
939                 b= FFMIN(b,255);
940                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
941
942                 fill_rectangle(screen,
943                             s->xpos, s->height-y, 1, 1,
944                             fgcolor);
945             }
946         }
947         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
948         s->xpos++;
949         if(s->xpos >= s->width)
950             s->xpos= s->xleft;
951     }
952 }
953
954 static int video_open(VideoState *is){
955     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
956     int w,h;
957
958     if(is_full_screen) flags |= SDL_FULLSCREEN;
959     else               flags |= SDL_RESIZABLE;
960
961     if (is_full_screen && fs_screen_width) {
962         w = fs_screen_width;
963         h = fs_screen_height;
964     } else if(!is_full_screen && screen_width){
965         w = screen_width;
966         h = screen_height;
967 #if CONFIG_AVFILTER
968     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
969         w = is->out_video_filter->inputs[0]->w;
970         h = is->out_video_filter->inputs[0]->h;
971 #else
972     }else if (is->video_st && is->video_st->codec->width){
973         w = is->video_st->codec->width;
974         h = is->video_st->codec->height;
975 #endif
976     } else {
977         w = 640;
978         h = 480;
979     }
980     if(screen && is->width == screen->w && screen->w == w
981        && is->height== screen->h && screen->h == h)
982         return 0;
983
984 #ifndef __APPLE__
985     screen = SDL_SetVideoMode(w, h, 0, flags);
986 #else
987     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
988     screen = SDL_SetVideoMode(w, h, 24, flags);
989 #endif
990     if (!screen) {
991         fprintf(stderr, "SDL: could not set video mode - exiting\n");
992         return -1;
993     }
994     if (!window_title)
995         window_title = input_filename;
996     SDL_WM_SetCaption(window_title, window_title);
997
998     is->width = screen->w;
999     is->height = screen->h;
1000
1001     return 0;
1002 }
1003
1004 /* display the current picture, if any */
1005 static void video_display(VideoState *is)
1006 {
1007     if(!screen)
1008         video_open(cur_stream);
1009     if (is->audio_st && is->show_audio)
1010         video_audio_display(is);
1011     else if (is->video_st)
1012         video_image_display(is);
1013 }
1014
1015 static int refresh_thread(void *opaque)
1016 {
1017     VideoState *is= opaque;
1018     while(!is->abort_request){
1019     SDL_Event event;
1020     event.type = FF_REFRESH_EVENT;
1021     event.user.data1 = opaque;
1022         if(!is->refresh){
1023             is->refresh=1;
1024     SDL_PushEvent(&event);
1025         }
1026         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
1027     }
1028     return 0;
1029 }
1030
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState *is)
1033 {
1034     double pts;
1035     int hw_buf_size, bytes_per_sec;
1036     pts = is->audio_clock;
1037     hw_buf_size = audio_write_get_buf_size(is);
1038     bytes_per_sec = 0;
1039     if (is->audio_st) {
1040         bytes_per_sec = is->audio_st->codec->sample_rate *
1041             2 * is->audio_st->codec->channels;
1042     }
1043     if (bytes_per_sec)
1044         pts -= (double)hw_buf_size / bytes_per_sec;
1045     return pts;
1046 }
1047
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState *is)
1050 {
1051     if (is->paused) {
1052         return is->video_current_pts;
1053     } else {
1054         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1055     }
1056 }
1057
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState *is)
1060 {
1061     int64_t ti;
1062     ti = av_gettime();
1063     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1064 }
1065
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState *is)
1068 {
1069     double val;
1070
1071     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072         if (is->video_st)
1073             val = get_video_clock(is);
1074         else
1075             val = get_audio_clock(is);
1076     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077         if (is->audio_st)
1078             val = get_audio_clock(is);
1079         else
1080             val = get_video_clock(is);
1081     } else {
1082         val = get_external_clock(is);
1083     }
1084     return val;
1085 }
1086
1087 /* seek in the stream */
1088 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1089 {
1090     if (!is->seek_req) {
1091         is->seek_pos = pos;
1092         is->seek_rel = rel;
1093         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1094         if (seek_by_bytes)
1095             is->seek_flags |= AVSEEK_FLAG_BYTE;
1096         is->seek_req = 1;
1097     }
1098 }
1099
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState *is)
1102 {
1103     if (is->paused) {
1104         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105         if(is->read_pause_return != AVERROR(ENOSYS)){
1106             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1107         }
1108         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1109     }
1110     is->paused = !is->paused;
1111 }
1112
1113 static double compute_target_time(double frame_current_pts, VideoState *is)
1114 {
1115     double delay, sync_threshold, diff;
1116
1117     /* compute nominal delay */
1118     delay = frame_current_pts - is->frame_last_pts;
1119     if (delay <= 0 || delay >= 10.0) {
1120         /* if incorrect delay, use previous one */
1121         delay = is->frame_last_delay;
1122     } else {
1123         is->frame_last_delay = delay;
1124     }
1125     is->frame_last_pts = frame_current_pts;
1126
1127     /* update delay to follow master synchronisation source */
1128     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130         /* if video is slave, we try to correct big delays by
1131            duplicating or deleting a frame */
1132         diff = get_video_clock(is) - get_master_clock(is);
1133
1134         /* skip or repeat frame. We take into account the
1135            delay to compute the threshold. I still don't know
1136            if it is the best guess */
1137         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139             if (diff <= -sync_threshold)
1140                 delay = 0;
1141             else if (diff >= sync_threshold)
1142                 delay = 2 * delay;
1143         }
1144     }
1145     is->frame_timer += delay;
1146 #if defined(DEBUG_SYNC)
1147     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148             delay, actual_delay, frame_current_pts, -diff);
1149 #endif
1150
1151     return is->frame_timer;
1152 }
1153
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque)
1156 {
1157     VideoState *is = opaque;
1158     VideoPicture *vp;
1159
1160     SubPicture *sp, *sp2;
1161
1162     if (is->video_st) {
1163 retry:
1164         if (is->pictq_size == 0) {
1165             //nothing to do, no picture to display in the que
1166         } else {
1167             double time= av_gettime()/1000000.0;
1168             double next_target;
1169             /* dequeue the picture */
1170             vp = &is->pictq[is->pictq_rindex];
1171
1172             if(time < vp->target_clock)
1173                 return;
1174             /* update current video pts */
1175             is->video_current_pts = vp->pts;
1176             is->video_current_pts_drift = is->video_current_pts - time;
1177             is->video_current_pos = vp->pos;
1178             if(is->pictq_size > 1){
1179                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180                 assert(nextvp->target_clock >= vp->target_clock);
1181                 next_target= nextvp->target_clock;
1182             }else{
1183                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1184             }
1185             if(framedrop && time > next_target){
1186                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187                 if(is->pictq_size > 1 || time > next_target + 0.5){
1188                     /* update queue size and signal for next picture */
1189                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190                         is->pictq_rindex = 0;
1191
1192                     SDL_LockMutex(is->pictq_mutex);
1193                     is->pictq_size--;
1194                     SDL_CondSignal(is->pictq_cond);
1195                     SDL_UnlockMutex(is->pictq_mutex);
1196                     goto retry;
1197                 }
1198             }
1199
1200             if(is->subtitle_st) {
1201                 if (is->subtitle_stream_changed) {
1202                     SDL_LockMutex(is->subpq_mutex);
1203
1204                     while (is->subpq_size) {
1205                         free_subpicture(&is->subpq[is->subpq_rindex]);
1206
1207                         /* update queue size and signal for next picture */
1208                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209                             is->subpq_rindex = 0;
1210
1211                         is->subpq_size--;
1212                     }
1213                     is->subtitle_stream_changed = 0;
1214
1215                     SDL_CondSignal(is->subpq_cond);
1216                     SDL_UnlockMutex(is->subpq_mutex);
1217                 } else {
1218                     if (is->subpq_size > 0) {
1219                         sp = &is->subpq[is->subpq_rindex];
1220
1221                         if (is->subpq_size > 1)
1222                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1223                         else
1224                             sp2 = NULL;
1225
1226                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1228                         {
1229                             free_subpicture(sp);
1230
1231                             /* update queue size and signal for next picture */
1232                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233                                 is->subpq_rindex = 0;
1234
1235                             SDL_LockMutex(is->subpq_mutex);
1236                             is->subpq_size--;
1237                             SDL_CondSignal(is->subpq_cond);
1238                             SDL_UnlockMutex(is->subpq_mutex);
1239                         }
1240                     }
1241                 }
1242             }
1243
1244             /* display picture */
1245             video_display(is);
1246
1247             /* update queue size and signal for next picture */
1248             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249                 is->pictq_rindex = 0;
1250
1251             SDL_LockMutex(is->pictq_mutex);
1252             is->pictq_size--;
1253             SDL_CondSignal(is->pictq_cond);
1254             SDL_UnlockMutex(is->pictq_mutex);
1255         }
1256     } else if (is->audio_st) {
1257         /* draw the next audio frame */
1258
1259         /* if only audio stream, then display the audio bars (better
1260            than nothing, just to test the implementation */
1261
1262         /* display picture */
1263         video_display(is);
1264     }
1265     if (show_status) {
1266         static int64_t last_time;
1267         int64_t cur_time;
1268         int aqsize, vqsize, sqsize;
1269         double av_diff;
1270
1271         cur_time = av_gettime();
1272         if (!last_time || (cur_time - last_time) >= 30000) {
1273             aqsize = 0;
1274             vqsize = 0;
1275             sqsize = 0;
1276             if (is->audio_st)
1277                 aqsize = is->audioq.size;
1278             if (is->video_st)
1279                 vqsize = is->videoq.size;
1280             if (is->subtitle_st)
1281                 sqsize = is->subtitleq.size;
1282             av_diff = 0;
1283             if (is->audio_st && is->video_st)
1284                 av_diff = get_audio_clock(is) - get_video_clock(is);
1285             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1286                    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);
1287             fflush(stdout);
1288             last_time = cur_time;
1289         }
1290     }
1291 }
1292
1293 static void stream_close(VideoState *is)
1294 {
1295     VideoPicture *vp;
1296     int i;
1297     /* XXX: use a special url_shutdown call to abort parse cleanly */
1298     is->abort_request = 1;
1299     SDL_WaitThread(is->parse_tid, NULL);
1300     SDL_WaitThread(is->refresh_tid, NULL);
1301
1302     /* free all pictures */
1303     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1304         vp = &is->pictq[i];
1305 #if CONFIG_AVFILTER
1306         if (vp->picref) {
1307             avfilter_unref_buffer(vp->picref);
1308             vp->picref = NULL;
1309         }
1310 #endif
1311         if (vp->bmp) {
1312             SDL_FreeYUVOverlay(vp->bmp);
1313             vp->bmp = NULL;
1314         }
1315     }
1316     SDL_DestroyMutex(is->pictq_mutex);
1317     SDL_DestroyCond(is->pictq_cond);
1318     SDL_DestroyMutex(is->subpq_mutex);
1319     SDL_DestroyCond(is->subpq_cond);
1320 #if !CONFIG_AVFILTER
1321     if (is->img_convert_ctx)
1322         sws_freeContext(is->img_convert_ctx);
1323 #endif
1324     av_free(is);
1325 }
1326
1327 static void do_exit(void)
1328 {
1329     if (cur_stream) {
1330         stream_close(cur_stream);
1331         cur_stream = NULL;
1332     }
1333     uninit_opts();
1334 #if CONFIG_AVFILTER
1335     avfilter_uninit();
1336 #endif
1337     if (show_status)
1338         printf("\n");
1339     SDL_Quit();
1340     av_log(NULL, AV_LOG_QUIET, "");
1341     exit(0);
1342 }
1343
1344 /* allocate a picture (needs to do that in main thread to avoid
1345    potential locking problems */
1346 static void alloc_picture(void *opaque)
1347 {
1348     VideoState *is = opaque;
1349     VideoPicture *vp;
1350
1351     vp = &is->pictq[is->pictq_windex];
1352
1353     if (vp->bmp)
1354         SDL_FreeYUVOverlay(vp->bmp);
1355
1356 #if CONFIG_AVFILTER
1357     if (vp->picref)
1358         avfilter_unref_buffer(vp->picref);
1359     vp->picref = NULL;
1360
1361     vp->width   = is->out_video_filter->inputs[0]->w;
1362     vp->height  = is->out_video_filter->inputs[0]->h;
1363     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1364 #else
1365     vp->width   = is->video_st->codec->width;
1366     vp->height  = is->video_st->codec->height;
1367     vp->pix_fmt = is->video_st->codec->pix_fmt;
1368 #endif
1369
1370     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1371                                    SDL_YV12_OVERLAY,
1372                                    screen);
1373     if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1374         /* SDL allocates a buffer smaller than requested if the video
1375          * overlay hardware is unable to support the requested size. */
1376         fprintf(stderr, "Error: the video system does not support an image\n"
1377                         "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1378                         "to reduce the image size.\n", vp->width, vp->height );
1379         do_exit();
1380     }
1381
1382     SDL_LockMutex(is->pictq_mutex);
1383     vp->allocated = 1;
1384     SDL_CondSignal(is->pictq_cond);
1385     SDL_UnlockMutex(is->pictq_mutex);
1386 }
1387
1388 /**
1389  *
1390  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1391  */
1392 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1393 {
1394     VideoPicture *vp;
1395     int dst_pix_fmt;
1396 #if CONFIG_AVFILTER
1397     AVPicture pict_src;
1398 #endif
1399     /* wait until we have space to put a new picture */
1400     SDL_LockMutex(is->pictq_mutex);
1401
1402     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1403         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1404
1405     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1406            !is->videoq.abort_request) {
1407         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1408     }
1409     SDL_UnlockMutex(is->pictq_mutex);
1410
1411     if (is->videoq.abort_request)
1412         return -1;
1413
1414     vp = &is->pictq[is->pictq_windex];
1415
1416     /* alloc or resize hardware picture buffer */
1417     if (!vp->bmp ||
1418 #if CONFIG_AVFILTER
1419         vp->width  != is->out_video_filter->inputs[0]->w ||
1420         vp->height != is->out_video_filter->inputs[0]->h) {
1421 #else
1422         vp->width != is->video_st->codec->width ||
1423         vp->height != is->video_st->codec->height) {
1424 #endif
1425         SDL_Event event;
1426
1427         vp->allocated = 0;
1428
1429         /* the allocation must be done in the main thread to avoid
1430            locking problems */
1431         event.type = FF_ALLOC_EVENT;
1432         event.user.data1 = is;
1433         SDL_PushEvent(&event);
1434
1435         /* wait until the picture is allocated */
1436         SDL_LockMutex(is->pictq_mutex);
1437         while (!vp->allocated && !is->videoq.abort_request) {
1438             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1439         }
1440         SDL_UnlockMutex(is->pictq_mutex);
1441
1442         if (is->videoq.abort_request)
1443             return -1;
1444     }
1445
1446     /* if the frame is not skipped, then display it */
1447     if (vp->bmp) {
1448         AVPicture pict;
1449 #if CONFIG_AVFILTER
1450         if(vp->picref)
1451             avfilter_unref_buffer(vp->picref);
1452         vp->picref = src_frame->opaque;
1453 #endif
1454
1455         /* get a pointer on the bitmap */
1456         SDL_LockYUVOverlay (vp->bmp);
1457
1458         dst_pix_fmt = PIX_FMT_YUV420P;
1459         memset(&pict,0,sizeof(AVPicture));
1460         pict.data[0] = vp->bmp->pixels[0];
1461         pict.data[1] = vp->bmp->pixels[2];
1462         pict.data[2] = vp->bmp->pixels[1];
1463
1464         pict.linesize[0] = vp->bmp->pitches[0];
1465         pict.linesize[1] = vp->bmp->pitches[2];
1466         pict.linesize[2] = vp->bmp->pitches[1];
1467
1468 #if CONFIG_AVFILTER
1469         pict_src.data[0] = src_frame->data[0];
1470         pict_src.data[1] = src_frame->data[1];
1471         pict_src.data[2] = src_frame->data[2];
1472
1473         pict_src.linesize[0] = src_frame->linesize[0];
1474         pict_src.linesize[1] = src_frame->linesize[1];
1475         pict_src.linesize[2] = src_frame->linesize[2];
1476
1477         //FIXME use direct rendering
1478         av_picture_copy(&pict, &pict_src,
1479                         vp->pix_fmt, vp->width, vp->height);
1480 #else
1481         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1482         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1483             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1484             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1485         if (is->img_convert_ctx == NULL) {
1486             fprintf(stderr, "Cannot initialize the conversion context\n");
1487             exit(1);
1488         }
1489         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1490                   0, vp->height, pict.data, pict.linesize);
1491 #endif
1492         /* update the bitmap content */
1493         SDL_UnlockYUVOverlay(vp->bmp);
1494
1495         vp->pts = pts;
1496         vp->pos = pos;
1497
1498         /* now we can update the picture count */
1499         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1500             is->pictq_windex = 0;
1501         SDL_LockMutex(is->pictq_mutex);
1502         vp->target_clock= compute_target_time(vp->pts, is);
1503
1504         is->pictq_size++;
1505         SDL_UnlockMutex(is->pictq_mutex);
1506     }
1507     return 0;
1508 }
1509
1510 /**
1511  * compute the exact PTS for the picture if it is omitted in the stream
1512  * @param pts1 the dts of the pkt / pts of the frame
1513  */
1514 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1515 {
1516     double frame_delay, pts;
1517
1518     pts = pts1;
1519
1520     if (pts != 0) {
1521         /* update video clock with pts, if present */
1522         is->video_clock = pts;
1523     } else {
1524         pts = is->video_clock;
1525     }
1526     /* update video clock for next frame */
1527     frame_delay = av_q2d(is->video_st->codec->time_base);
1528     /* for MPEG2, the frame can be repeated, so we update the
1529        clock accordingly */
1530     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1531     is->video_clock += frame_delay;
1532
1533 #if defined(DEBUG_SYNC) && 0
1534     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1535            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1536 #endif
1537     return queue_picture(is, src_frame, pts, pos);
1538 }
1539
1540 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1541 {
1542     int len1, got_picture, i;
1543
1544         if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1545             return -1;
1546
1547         if(pkt->data == flush_pkt.data){
1548             avcodec_flush_buffers(is->video_st->codec);
1549
1550             SDL_LockMutex(is->pictq_mutex);
1551             //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1552             for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1553                 is->pictq[i].target_clock= 0;
1554             }
1555             while (is->pictq_size && !is->videoq.abort_request) {
1556                 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1557             }
1558             is->video_current_pos= -1;
1559             SDL_UnlockMutex(is->pictq_mutex);
1560
1561             init_pts_correction(&is->pts_ctx);
1562             is->frame_last_pts= AV_NOPTS_VALUE;
1563             is->frame_last_delay = 0;
1564             is->frame_timer = (double)av_gettime() / 1000000.0;
1565             is->skip_frames= 1;
1566             is->skip_frames_index= 0;
1567             return 0;
1568         }
1569
1570         /* NOTE: ipts is the PTS of the _first_ picture beginning in
1571            this packet, if any */
1572         is->video_st->codec->reordered_opaque= pkt->pts;
1573         len1 = avcodec_decode_video2(is->video_st->codec,
1574                                     frame, &got_picture,
1575                                     pkt);
1576
1577         if (got_picture) {
1578             if (decoder_reorder_pts == -1) {
1579                 *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1580             } else if (decoder_reorder_pts) {
1581                 *pts = frame->reordered_opaque;
1582             } else {
1583                 *pts = pkt->dts;
1584             }
1585
1586             if (*pts == AV_NOPTS_VALUE) {
1587                 *pts = 0;
1588             }
1589         }
1590
1591 //            if (len1 < 0)
1592 //                break;
1593     if (got_picture){
1594         is->skip_frames_index += 1;
1595         if(is->skip_frames_index >= is->skip_frames){
1596             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1597             return 1;
1598         }
1599
1600     }
1601     return 0;
1602 }
1603
1604 #if CONFIG_AVFILTER
1605 typedef struct {
1606     VideoState *is;
1607     AVFrame *frame;
1608     int use_dr1;
1609 } FilterPriv;
1610
1611 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1612 {
1613     AVFilterContext *ctx = codec->opaque;
1614     AVFilterBufferRef  *ref;
1615     int perms = AV_PERM_WRITE;
1616     int i, w, h, stride[4];
1617     unsigned edge;
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     return 0;
1653 }
1654
1655 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1656 {
1657     memset(pic->data, 0, sizeof(pic->data));
1658     avfilter_unref_buffer(pic->opaque);
1659 }
1660
1661 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1662 {
1663     AVFilterBufferRef *ref = pic->opaque;
1664
1665     if (pic->data[0] == NULL) {
1666         pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1667         return codec->get_buffer(codec, pic);
1668     }
1669
1670     if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1671         (codec->pix_fmt != ref->format)) {
1672         av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1673         return -1;
1674     }
1675
1676     pic->reordered_opaque = codec->reordered_opaque;
1677     return 0;
1678 }
1679
1680 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1681 {
1682     FilterPriv *priv = ctx->priv;
1683     AVCodecContext *codec;
1684     if(!opaque) return -1;
1685
1686     priv->is = opaque;
1687     codec    = priv->is->video_st->codec;
1688     codec->opaque = ctx;
1689     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1690         priv->use_dr1 = 1;
1691         codec->get_buffer     = input_get_buffer;
1692         codec->release_buffer = input_release_buffer;
1693         codec->reget_buffer   = input_reget_buffer;
1694     }
1695
1696     priv->frame = avcodec_alloc_frame();
1697
1698     return 0;
1699 }
1700
1701 static void input_uninit(AVFilterContext *ctx)
1702 {
1703     FilterPriv *priv = ctx->priv;
1704     av_free(priv->frame);
1705 }
1706
1707 static int input_request_frame(AVFilterLink *link)
1708 {
1709     FilterPriv *priv = link->src->priv;
1710     AVFilterBufferRef *picref;
1711     int64_t pts = 0;
1712     AVPacket pkt;
1713     int ret;
1714
1715     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1716         av_free_packet(&pkt);
1717     if (ret < 0)
1718         return -1;
1719
1720     if(priv->use_dr1) {
1721         picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1722     } else {
1723         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1724         av_image_copy(picref->data, picref->linesize,
1725                       priv->frame->data, priv->frame->linesize,
1726                       picref->format, link->w, link->h);
1727     }
1728     av_free_packet(&pkt);
1729
1730     picref->pts = pts;
1731     picref->pos = pkt.pos;
1732     picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1733     avfilter_start_frame(link, picref);
1734     avfilter_draw_slice(link, 0, link->h, 1);
1735     avfilter_end_frame(link);
1736
1737     return 0;
1738 }
1739
1740 static int input_query_formats(AVFilterContext *ctx)
1741 {
1742     FilterPriv *priv = ctx->priv;
1743     enum PixelFormat pix_fmts[] = {
1744         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1745     };
1746
1747     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1748     return 0;
1749 }
1750
1751 static int input_config_props(AVFilterLink *link)
1752 {
1753     FilterPriv *priv  = link->src->priv;
1754     AVCodecContext *c = priv->is->video_st->codec;
1755
1756     link->w = c->width;
1757     link->h = c->height;
1758     link->time_base = priv->is->video_st->time_base;
1759
1760     return 0;
1761 }
1762
1763 static AVFilter input_filter =
1764 {
1765     .name      = "ffplay_input",
1766
1767     .priv_size = sizeof(FilterPriv),
1768
1769     .init      = input_init,
1770     .uninit    = input_uninit,
1771
1772     .query_formats = input_query_formats,
1773
1774     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1775     .outputs   = (AVFilterPad[]) {{ .name = "default",
1776                                     .type = AVMEDIA_TYPE_VIDEO,
1777                                     .request_frame = input_request_frame,
1778                                     .config_props  = input_config_props, },
1779                                   { .name = NULL }},
1780 };
1781
1782 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1783                                     int64_t *pts, AVRational *tb, int64_t *pos)
1784 {
1785     AVFilterBufferRef *pic;
1786
1787     if(avfilter_request_frame(ctx->inputs[0]))
1788         return -1;
1789     if(!(pic = ctx->inputs[0]->cur_buf))
1790         return -1;
1791     ctx->inputs[0]->cur_buf = NULL;
1792
1793     frame->opaque = pic;
1794     *pts          = pic->pts;
1795     *pos          = pic->pos;
1796     *tb           = ctx->inputs[0]->time_base;
1797
1798     memcpy(frame->data,     pic->data,     sizeof(frame->data));
1799     memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1800
1801     return 1;
1802 }
1803 #endif  /* CONFIG_AVFILTER */
1804
1805 static int video_thread(void *arg)
1806 {
1807     VideoState *is = arg;
1808     AVFrame *frame= avcodec_alloc_frame();
1809     int64_t pts_int;
1810     double pts;
1811     int ret;
1812
1813 #if CONFIG_AVFILTER
1814     int64_t pos;
1815     char sws_flags_str[128];
1816     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1817     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1818     AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1819     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1820     graph->scale_sws_opts = av_strdup(sws_flags_str);
1821
1822     if (avfilter_open(&filt_src, &input_filter,  "src") < 0) goto the_end;
1823     if (avfilter_open(&filt_out, &ffsink      ,  "out") < 0) goto the_end;
1824
1825     if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
1826     if(avfilter_init_filter(filt_out, NULL, &ffsink_ctx))    goto the_end;
1827
1828
1829     if(vfilters) {
1830         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1831         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1832
1833         outputs->name    = av_strdup("in");
1834         outputs->filter  = filt_src;
1835         outputs->pad_idx = 0;
1836         outputs->next    = NULL;
1837
1838         inputs->name    = av_strdup("out");
1839         inputs->filter  = filt_out;
1840         inputs->pad_idx = 0;
1841         inputs->next    = NULL;
1842
1843         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1844             goto the_end;
1845         av_freep(&vfilters);
1846     } else {
1847         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1848     }
1849     avfilter_graph_add_filter(graph, filt_src);
1850     avfilter_graph_add_filter(graph, filt_out);
1851
1852     if(avfilter_graph_check_validity(graph, NULL))           goto the_end;
1853     if(avfilter_graph_config_formats(graph, NULL))           goto the_end;
1854     if(avfilter_graph_config_links(graph, NULL))             goto the_end;
1855
1856     is->out_video_filter = filt_out;
1857 #endif
1858
1859     for(;;) {
1860 #if !CONFIG_AVFILTER
1861         AVPacket pkt;
1862 #else
1863         AVRational tb;
1864 #endif
1865         while (is->paused && !is->videoq.abort_request)
1866             SDL_Delay(10);
1867 #if CONFIG_AVFILTER
1868         ret = get_filtered_video_frame(filt_out, frame, &pts_int, &tb, &pos);
1869
1870         if (av_cmp_q(tb, is->video_st->time_base)) {
1871             int64_t pts1 = pts_int;
1872             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1873             av_log(NULL, AV_LOG_DEBUG, "video_thread(): "
1874                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1875                    tb.num, tb.den, pts1,
1876                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1877         }
1878 #else
1879         ret = get_video_frame(is, frame, &pts_int, &pkt);
1880 #endif
1881
1882         if (ret < 0) goto the_end;
1883
1884         if (!ret)
1885             continue;
1886
1887         pts = pts_int*av_q2d(is->video_st->time_base);
1888
1889 #if CONFIG_AVFILTER
1890         ret = output_picture2(is, frame, pts, pos);
1891 #else
1892         ret = output_picture2(is, frame, pts,  pkt.pos);
1893         av_free_packet(&pkt);
1894 #endif
1895         if (ret < 0)
1896             goto the_end;
1897
1898         if (step)
1899             if (cur_stream)
1900                 stream_pause(cur_stream);
1901     }
1902  the_end:
1903 #if CONFIG_AVFILTER
1904     avfilter_graph_destroy(graph);
1905     av_freep(&graph);
1906 #endif
1907     av_free(frame);
1908     return 0;
1909 }
1910
1911 static int subtitle_thread(void *arg)
1912 {
1913     VideoState *is = arg;
1914     SubPicture *sp;
1915     AVPacket pkt1, *pkt = &pkt1;
1916     int len1, got_subtitle;
1917     double pts;
1918     int i, j;
1919     int r, g, b, y, u, v, a;
1920
1921     for(;;) {
1922         while (is->paused && !is->subtitleq.abort_request) {
1923             SDL_Delay(10);
1924         }
1925         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1926             break;
1927
1928         if(pkt->data == flush_pkt.data){
1929             avcodec_flush_buffers(is->subtitle_st->codec);
1930             continue;
1931         }
1932         SDL_LockMutex(is->subpq_mutex);
1933         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1934                !is->subtitleq.abort_request) {
1935             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1936         }
1937         SDL_UnlockMutex(is->subpq_mutex);
1938
1939         if (is->subtitleq.abort_request)
1940             goto the_end;
1941
1942         sp = &is->subpq[is->subpq_windex];
1943
1944        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1945            this packet, if any */
1946         pts = 0;
1947         if (pkt->pts != AV_NOPTS_VALUE)
1948             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1949
1950         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1951                                     &sp->sub, &got_subtitle,
1952                                     pkt);
1953 //            if (len1 < 0)
1954 //                break;
1955         if (got_subtitle && sp->sub.format == 0) {
1956             sp->pts = pts;
1957
1958             for (i = 0; i < sp->sub.num_rects; i++)
1959             {
1960                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1961                 {
1962                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1963                     y = RGB_TO_Y_CCIR(r, g, b);
1964                     u = RGB_TO_U_CCIR(r, g, b, 0);
1965                     v = RGB_TO_V_CCIR(r, g, b, 0);
1966                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1967                 }
1968             }
1969
1970             /* now we can update the picture count */
1971             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1972                 is->subpq_windex = 0;
1973             SDL_LockMutex(is->subpq_mutex);
1974             is->subpq_size++;
1975             SDL_UnlockMutex(is->subpq_mutex);
1976         }
1977         av_free_packet(pkt);
1978 //        if (step)
1979 //            if (cur_stream)
1980 //                stream_pause(cur_stream);
1981     }
1982  the_end:
1983     return 0;
1984 }
1985
1986 /* copy samples for viewing in editor window */
1987 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1988 {
1989     int size, len, channels;
1990
1991     channels = is->audio_st->codec->channels;
1992
1993     size = samples_size / sizeof(short);
1994     while (size > 0) {
1995         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1996         if (len > size)
1997             len = size;
1998         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1999         samples += len;
2000         is->sample_array_index += len;
2001         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2002             is->sample_array_index = 0;
2003         size -= len;
2004     }
2005 }
2006
2007 /* return the new audio buffer size (samples can be added or deleted
2008    to get better sync if video or external master clock) */
2009 static int synchronize_audio(VideoState *is, short *samples,
2010                              int samples_size1, double pts)
2011 {
2012     int n, samples_size;
2013     double ref_clock;
2014
2015     n = 2 * is->audio_st->codec->channels;
2016     samples_size = samples_size1;
2017
2018     /* if not master, then we try to remove or add samples to correct the clock */
2019     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2020          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2021         double diff, avg_diff;
2022         int wanted_size, min_size, max_size, nb_samples;
2023
2024         ref_clock = get_master_clock(is);
2025         diff = get_audio_clock(is) - ref_clock;
2026
2027         if (diff < AV_NOSYNC_THRESHOLD) {
2028             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2029             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2030                 /* not enough measures to have a correct estimate */
2031                 is->audio_diff_avg_count++;
2032             } else {
2033                 /* estimate the A-V difference */
2034                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2035
2036                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2037                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2038                     nb_samples = samples_size / n;
2039
2040                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2041                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2042                     if (wanted_size < min_size)
2043                         wanted_size = min_size;
2044                     else if (wanted_size > max_size)
2045                         wanted_size = max_size;
2046
2047                     /* add or remove samples to correction the synchro */
2048                     if (wanted_size < samples_size) {
2049                         /* remove samples */
2050                         samples_size = wanted_size;
2051                     } else if (wanted_size > samples_size) {
2052                         uint8_t *samples_end, *q;
2053                         int nb;
2054
2055                         /* add samples */
2056                         nb = (samples_size - wanted_size);
2057                         samples_end = (uint8_t *)samples + samples_size - n;
2058                         q = samples_end + n;
2059                         while (nb > 0) {
2060                             memcpy(q, samples_end, n);
2061                             q += n;
2062                             nb -= n;
2063                         }
2064                         samples_size = wanted_size;
2065                     }
2066                 }
2067 #if 0
2068                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2069                        diff, avg_diff, samples_size - samples_size1,
2070                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2071 #endif
2072             }
2073         } else {
2074             /* too big difference : may be initial PTS errors, so
2075                reset A-V filter */
2076             is->audio_diff_avg_count = 0;
2077             is->audio_diff_cum = 0;
2078         }
2079     }
2080
2081     return samples_size;
2082 }
2083
2084 /* decode one audio frame and returns its uncompressed size */
2085 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2086 {
2087     AVPacket *pkt_temp = &is->audio_pkt_temp;
2088     AVPacket *pkt = &is->audio_pkt;
2089     AVCodecContext *dec= is->audio_st->codec;
2090     int n, len1, data_size;
2091     double pts;
2092
2093     for(;;) {
2094         /* NOTE: the audio packet can contain several frames */
2095         while (pkt_temp->size > 0) {
2096             data_size = sizeof(is->audio_buf1);
2097             len1 = avcodec_decode_audio3(dec,
2098                                         (int16_t *)is->audio_buf1, &data_size,
2099                                         pkt_temp);
2100             if (len1 < 0) {
2101                 /* if error, we skip the frame */
2102                 pkt_temp->size = 0;
2103                 break;
2104             }
2105
2106             pkt_temp->data += len1;
2107             pkt_temp->size -= len1;
2108             if (data_size <= 0)
2109                 continue;
2110
2111             if (dec->sample_fmt != is->audio_src_fmt) {
2112                 if (is->reformat_ctx)
2113                     av_audio_convert_free(is->reformat_ctx);
2114                 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2115                                                          dec->sample_fmt, 1, NULL, 0);
2116                 if (!is->reformat_ctx) {
2117                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2118                         avcodec_get_sample_fmt_name(dec->sample_fmt),
2119                         avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2120                         break;
2121                 }
2122                 is->audio_src_fmt= dec->sample_fmt;
2123             }
2124
2125             if (is->reformat_ctx) {
2126                 const void *ibuf[6]= {is->audio_buf1};
2127                 void *obuf[6]= {is->audio_buf2};
2128                 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2129                 int ostride[6]= {2};
2130                 int len= data_size/istride[0];
2131                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2132                     printf("av_audio_convert() failed\n");
2133                     break;
2134                 }
2135                 is->audio_buf= is->audio_buf2;
2136                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2137                           remove this legacy cruft */
2138                 data_size= len*2;
2139             }else{
2140                 is->audio_buf= is->audio_buf1;
2141             }
2142
2143             /* if no pts, then compute it */
2144             pts = is->audio_clock;
2145             *pts_ptr = pts;
2146             n = 2 * dec->channels;
2147             is->audio_clock += (double)data_size /
2148                 (double)(n * dec->sample_rate);
2149 #if defined(DEBUG_SYNC)
2150             {
2151                 static double last_clock;
2152                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2153                        is->audio_clock - last_clock,
2154                        is->audio_clock, pts);
2155                 last_clock = is->audio_clock;
2156             }
2157 #endif
2158             return data_size;
2159         }
2160
2161         /* free the current packet */
2162         if (pkt->data)
2163             av_free_packet(pkt);
2164
2165         if (is->paused || is->audioq.abort_request) {
2166             return -1;
2167         }
2168
2169         /* read next packet */
2170         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2171             return -1;
2172         if(pkt->data == flush_pkt.data){
2173             avcodec_flush_buffers(dec);
2174             continue;
2175         }
2176
2177         pkt_temp->data = pkt->data;
2178         pkt_temp->size = pkt->size;
2179
2180         /* if update the audio clock with the pts */
2181         if (pkt->pts != AV_NOPTS_VALUE) {
2182             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2183         }
2184     }
2185 }
2186
2187 /* get the current audio output buffer size, in samples. With SDL, we
2188    cannot have a precise information */
2189 static int audio_write_get_buf_size(VideoState *is)
2190 {
2191     return is->audio_buf_size - is->audio_buf_index;
2192 }
2193
2194
2195 /* prepare a new audio buffer */
2196 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2197 {
2198     VideoState *is = opaque;
2199     int audio_size, len1;
2200     double pts;
2201
2202     audio_callback_time = av_gettime();
2203
2204     while (len > 0) {
2205         if (is->audio_buf_index >= is->audio_buf_size) {
2206            audio_size = audio_decode_frame(is, &pts);
2207            if (audio_size < 0) {
2208                 /* if error, just output silence */
2209                is->audio_buf = is->audio_buf1;
2210                is->audio_buf_size = 1024;
2211                memset(is->audio_buf, 0, is->audio_buf_size);
2212            } else {
2213                if (is->show_audio)
2214                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2215                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2216                                               pts);
2217                is->audio_buf_size = audio_size;
2218            }
2219            is->audio_buf_index = 0;
2220         }
2221         len1 = is->audio_buf_size - is->audio_buf_index;
2222         if (len1 > len)
2223             len1 = len;
2224         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2225         len -= len1;
2226         stream += len1;
2227         is->audio_buf_index += len1;
2228     }
2229 }
2230
2231 /* open a given stream. Return 0 if OK */
2232 static int stream_component_open(VideoState *is, int stream_index)
2233 {
2234     AVFormatContext *ic = is->ic;
2235     AVCodecContext *avctx;
2236     AVCodec *codec;
2237     SDL_AudioSpec wanted_spec, spec;
2238
2239     if (stream_index < 0 || stream_index >= ic->nb_streams)
2240         return -1;
2241     avctx = ic->streams[stream_index]->codec;
2242
2243     /* prepare audio output */
2244     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2245         if (avctx->channels > 0) {
2246             avctx->request_channels = FFMIN(2, avctx->channels);
2247         } else {
2248             avctx->request_channels = 2;
2249         }
2250     }
2251
2252     codec = avcodec_find_decoder(avctx->codec_id);
2253     avctx->debug_mv = debug_mv;
2254     avctx->debug = debug;
2255     avctx->workaround_bugs = workaround_bugs;
2256     avctx->lowres = lowres;
2257     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2258     avctx->idct_algo= idct;
2259     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2260     avctx->skip_frame= skip_frame;
2261     avctx->skip_idct= skip_idct;
2262     avctx->skip_loop_filter= skip_loop_filter;
2263     avctx->error_recognition= error_recognition;
2264     avctx->error_concealment= error_concealment;
2265     avcodec_thread_init(avctx, thread_count);
2266
2267     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2268
2269     if (!codec ||
2270         avcodec_open(avctx, codec) < 0)
2271         return -1;
2272
2273     /* prepare audio output */
2274     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2275         wanted_spec.freq = avctx->sample_rate;
2276         wanted_spec.format = AUDIO_S16SYS;
2277         wanted_spec.channels = avctx->channels;
2278         wanted_spec.silence = 0;
2279         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2280         wanted_spec.callback = sdl_audio_callback;
2281         wanted_spec.userdata = is;
2282         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2283             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2284             return -1;
2285         }
2286         is->audio_hw_buf_size = spec.size;
2287         is->audio_src_fmt= SAMPLE_FMT_S16;
2288     }
2289
2290     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2291     switch(avctx->codec_type) {
2292     case AVMEDIA_TYPE_AUDIO:
2293         is->audio_stream = stream_index;
2294         is->audio_st = ic->streams[stream_index];
2295         is->audio_buf_size = 0;
2296         is->audio_buf_index = 0;
2297
2298         /* init averaging filter */
2299         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2300         is->audio_diff_avg_count = 0;
2301         /* since we do not have a precise anough audio fifo fullness,
2302            we correct audio sync only if larger than this threshold */
2303         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2304
2305         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2306         packet_queue_init(&is->audioq);
2307         SDL_PauseAudio(0);
2308         break;
2309     case AVMEDIA_TYPE_VIDEO:
2310         is->video_stream = stream_index;
2311         is->video_st = ic->streams[stream_index];
2312
2313 //        is->video_current_pts_time = av_gettime();
2314
2315         packet_queue_init(&is->videoq);
2316         is->video_tid = SDL_CreateThread(video_thread, is);
2317         break;
2318     case AVMEDIA_TYPE_SUBTITLE:
2319         is->subtitle_stream = stream_index;
2320         is->subtitle_st = ic->streams[stream_index];
2321         packet_queue_init(&is->subtitleq);
2322
2323         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2324         break;
2325     default:
2326         break;
2327     }
2328     return 0;
2329 }
2330
2331 static void stream_component_close(VideoState *is, int stream_index)
2332 {
2333     AVFormatContext *ic = is->ic;
2334     AVCodecContext *avctx;
2335
2336     if (stream_index < 0 || stream_index >= ic->nb_streams)
2337         return;
2338     avctx = ic->streams[stream_index]->codec;
2339
2340     switch(avctx->codec_type) {
2341     case AVMEDIA_TYPE_AUDIO:
2342         packet_queue_abort(&is->audioq);
2343
2344         SDL_CloseAudio();
2345
2346         packet_queue_end(&is->audioq);
2347         if (is->reformat_ctx)
2348             av_audio_convert_free(is->reformat_ctx);
2349         is->reformat_ctx = NULL;
2350         break;
2351     case AVMEDIA_TYPE_VIDEO:
2352         packet_queue_abort(&is->videoq);
2353
2354         /* note: we also signal this mutex to make sure we deblock the
2355            video thread in all cases */
2356         SDL_LockMutex(is->pictq_mutex);
2357         SDL_CondSignal(is->pictq_cond);
2358         SDL_UnlockMutex(is->pictq_mutex);
2359
2360         SDL_WaitThread(is->video_tid, NULL);
2361
2362         packet_queue_end(&is->videoq);
2363         break;
2364     case AVMEDIA_TYPE_SUBTITLE:
2365         packet_queue_abort(&is->subtitleq);
2366
2367         /* note: we also signal this mutex to make sure we deblock the
2368            video thread in all cases */
2369         SDL_LockMutex(is->subpq_mutex);
2370         is->subtitle_stream_changed = 1;
2371
2372         SDL_CondSignal(is->subpq_cond);
2373         SDL_UnlockMutex(is->subpq_mutex);
2374
2375         SDL_WaitThread(is->subtitle_tid, NULL);
2376
2377         packet_queue_end(&is->subtitleq);
2378         break;
2379     default:
2380         break;
2381     }
2382
2383     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2384     avcodec_close(avctx);
2385     switch(avctx->codec_type) {
2386     case AVMEDIA_TYPE_AUDIO:
2387         is->audio_st = NULL;
2388         is->audio_stream = -1;
2389         break;
2390     case AVMEDIA_TYPE_VIDEO:
2391         is->video_st = NULL;
2392         is->video_stream = -1;
2393         break;
2394     case AVMEDIA_TYPE_SUBTITLE:
2395         is->subtitle_st = NULL;
2396         is->subtitle_stream = -1;
2397         break;
2398     default:
2399         break;
2400     }
2401 }
2402
2403 /* since we have only one decoding thread, we can use a global
2404    variable instead of a thread local variable */
2405 static VideoState *global_video_state;
2406
2407 static int decode_interrupt_cb(void)
2408 {
2409     return (global_video_state && global_video_state->abort_request);
2410 }
2411
2412 /* this thread gets the stream from the disk or the network */
2413 static int decode_thread(void *arg)
2414 {
2415     VideoState *is = arg;
2416     AVFormatContext *ic;
2417     int err, i, ret;
2418     int st_index[AVMEDIA_TYPE_NB];
2419     int st_count[AVMEDIA_TYPE_NB]={0};
2420     int st_best_packet_count[AVMEDIA_TYPE_NB];
2421     AVPacket pkt1, *pkt = &pkt1;
2422     AVFormatParameters params, *ap = &params;
2423     int eof=0;
2424     int pkt_in_play_range = 0;
2425
2426     ic = avformat_alloc_context();
2427
2428     memset(st_index, -1, sizeof(st_index));
2429     memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2430     is->video_stream = -1;
2431     is->audio_stream = -1;
2432     is->subtitle_stream = -1;
2433
2434     global_video_state = is;
2435     url_set_interrupt_cb(decode_interrupt_cb);
2436
2437     memset(ap, 0, sizeof(*ap));
2438
2439     ap->prealloced_context = 1;
2440     ap->width = frame_width;
2441     ap->height= frame_height;
2442     ap->time_base= (AVRational){1, 25};
2443     ap->pix_fmt = frame_pix_fmt;
2444
2445     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2446
2447     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2448     if (err < 0) {
2449         print_error(is->filename, err);
2450         ret = -1;
2451         goto fail;
2452     }
2453     is->ic = ic;
2454
2455     if(genpts)
2456         ic->flags |= AVFMT_FLAG_GENPTS;
2457
2458     err = av_find_stream_info(ic);
2459     if (err < 0) {
2460         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2461         ret = -1;
2462         goto fail;
2463     }
2464     if(ic->pb)
2465         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2466
2467     if(seek_by_bytes<0)
2468         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2469
2470     /* if seeking requested, we execute it */
2471     if (start_time != AV_NOPTS_VALUE) {
2472         int64_t timestamp;
2473
2474         timestamp = start_time;
2475         /* add the stream start time */
2476         if (ic->start_time != AV_NOPTS_VALUE)
2477             timestamp += ic->start_time;
2478         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2479         if (ret < 0) {
2480             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2481                     is->filename, (double)timestamp / AV_TIME_BASE);
2482         }
2483     }
2484
2485     for(i = 0; i < ic->nb_streams; i++) {
2486         AVStream *st= ic->streams[i];
2487         AVCodecContext *avctx = st->codec;
2488         ic->streams[i]->discard = AVDISCARD_ALL;
2489         if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2490             continue;
2491         if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2492             continue;
2493
2494         if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2495             continue;
2496         st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2497
2498         switch(avctx->codec_type) {
2499         case AVMEDIA_TYPE_AUDIO:
2500             if (!audio_disable)
2501                 st_index[AVMEDIA_TYPE_AUDIO] = i;
2502             break;
2503         case AVMEDIA_TYPE_VIDEO:
2504         case AVMEDIA_TYPE_SUBTITLE:
2505             if (!video_disable)
2506                 st_index[avctx->codec_type] = i;
2507             break;
2508         default:
2509             break;
2510         }
2511     }
2512     if (show_status) {
2513         dump_format(ic, 0, is->filename, 0);
2514     }
2515
2516     /* open the streams */
2517     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2518         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2519     }
2520
2521     ret=-1;
2522     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2523         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2524     }
2525     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2526     if(ret<0) {
2527         if (!display_disable)
2528             is->show_audio = 2;
2529     }
2530
2531     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2532         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2533     }
2534
2535     if (is->video_stream < 0 && is->audio_stream < 0) {
2536         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2537         ret = -1;
2538         goto fail;
2539     }
2540
2541     for(;;) {
2542         if (is->abort_request)
2543             break;
2544         if (is->paused != is->last_paused) {
2545             is->last_paused = is->paused;
2546             if (is->paused)
2547                 is->read_pause_return= av_read_pause(ic);
2548             else
2549                 av_read_play(ic);
2550         }
2551 #if CONFIG_RTSP_DEMUXER
2552         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2553             /* wait 10 ms to avoid trying to get another packet */
2554             /* XXX: horrible */
2555             SDL_Delay(10);
2556             continue;
2557         }
2558 #endif
2559         if (is->seek_req) {
2560             int64_t seek_target= is->seek_pos;
2561             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2562             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2563 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2564 //      of the seek_pos/seek_rel variables
2565
2566             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2567             if (ret < 0) {
2568                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2569             }else{
2570                 if (is->audio_stream >= 0) {
2571                     packet_queue_flush(&is->audioq);
2572                     packet_queue_put(&is->audioq, &flush_pkt);
2573                 }
2574                 if (is->subtitle_stream >= 0) {
2575                     packet_queue_flush(&is->subtitleq);
2576                     packet_queue_put(&is->subtitleq, &flush_pkt);
2577                 }
2578                 if (is->video_stream >= 0) {
2579                     packet_queue_flush(&is->videoq);
2580                     packet_queue_put(&is->videoq, &flush_pkt);
2581                 }
2582             }
2583             is->seek_req = 0;
2584             eof= 0;
2585         }
2586
2587         /* if the queue are full, no need to read more */
2588         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2589             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2590                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2591                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2592             /* wait 10 ms */
2593             SDL_Delay(10);
2594             continue;
2595         }
2596         if(eof) {
2597             if(is->video_stream >= 0){
2598                 av_init_packet(pkt);
2599                 pkt->data=NULL;
2600                 pkt->size=0;
2601                 pkt->stream_index= is->video_stream;
2602                 packet_queue_put(&is->videoq, pkt);
2603             }
2604             SDL_Delay(10);
2605             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2606                 if(loop!=1 && (!loop || --loop)){
2607                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2608                 }else if(autoexit){
2609                     ret=AVERROR_EOF;
2610                     goto fail;
2611                 }
2612             }
2613             continue;
2614         }
2615         ret = av_read_frame(ic, pkt);
2616         if (ret < 0) {
2617             if (ret == AVERROR_EOF || url_feof(ic->pb))
2618                 eof=1;
2619             if (url_ferror(ic->pb))
2620                 break;
2621             SDL_Delay(100); /* wait for user event */
2622             continue;
2623         }
2624         /* check if packet is in play range specified by user, then queue, otherwise discard */
2625         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2626                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2627                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2628                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2629                 <= ((double)duration/1000000);
2630         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2631             packet_queue_put(&is->audioq, pkt);
2632         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2633             packet_queue_put(&is->videoq, pkt);
2634         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2635             packet_queue_put(&is->subtitleq, pkt);
2636         } else {
2637             av_free_packet(pkt);
2638         }
2639     }
2640     /* wait until the end */
2641     while (!is->abort_request) {
2642         SDL_Delay(100);
2643     }
2644
2645     ret = 0;
2646  fail:
2647     /* disable interrupting */
2648     global_video_state = NULL;
2649
2650     /* close each stream */
2651     if (is->audio_stream >= 0)
2652         stream_component_close(is, is->audio_stream);
2653     if (is->video_stream >= 0)
2654         stream_component_close(is, is->video_stream);
2655     if (is->subtitle_stream >= 0)
2656         stream_component_close(is, is->subtitle_stream);
2657     if (is->ic) {
2658         av_close_input_file(is->ic);
2659         is->ic = NULL; /* safety */
2660     }
2661     url_set_interrupt_cb(NULL);
2662
2663     if (ret != 0) {
2664         SDL_Event event;
2665
2666         event.type = FF_QUIT_EVENT;
2667         event.user.data1 = is;
2668         SDL_PushEvent(&event);
2669     }
2670     return 0;
2671 }
2672
2673 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2674 {
2675     VideoState *is;
2676
2677     is = av_mallocz(sizeof(VideoState));
2678     if (!is)
2679         return NULL;
2680     av_strlcpy(is->filename, filename, sizeof(is->filename));
2681     is->iformat = iformat;
2682     is->ytop = 0;
2683     is->xleft = 0;
2684
2685     /* start video display */
2686     is->pictq_mutex = SDL_CreateMutex();
2687     is->pictq_cond = SDL_CreateCond();
2688
2689     is->subpq_mutex = SDL_CreateMutex();
2690     is->subpq_cond = SDL_CreateCond();
2691
2692     is->av_sync_type = av_sync_type;
2693     is->parse_tid = SDL_CreateThread(decode_thread, is);
2694     if (!is->parse_tid) {
2695         av_free(is);
2696         return NULL;
2697     }
2698     return is;
2699 }
2700
2701 static void stream_cycle_channel(VideoState *is, int codec_type)
2702 {
2703     AVFormatContext *ic = is->ic;
2704     int start_index, stream_index;
2705     AVStream *st;
2706
2707     if (codec_type == AVMEDIA_TYPE_VIDEO)
2708         start_index = is->video_stream;
2709     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2710         start_index = is->audio_stream;
2711     else
2712         start_index = is->subtitle_stream;
2713     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2714         return;
2715     stream_index = start_index;
2716     for(;;) {
2717         if (++stream_index >= is->ic->nb_streams)
2718         {
2719             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2720             {
2721                 stream_index = -1;
2722                 goto the_end;
2723             } else
2724                 stream_index = 0;
2725         }
2726         if (stream_index == start_index)
2727             return;
2728         st = ic->streams[stream_index];
2729         if (st->codec->codec_type == codec_type) {
2730             /* check that parameters are OK */
2731             switch(codec_type) {
2732             case AVMEDIA_TYPE_AUDIO:
2733                 if (st->codec->sample_rate != 0 &&
2734                     st->codec->channels != 0)
2735                     goto the_end;
2736                 break;
2737             case AVMEDIA_TYPE_VIDEO:
2738             case AVMEDIA_TYPE_SUBTITLE:
2739                 goto the_end;
2740             default:
2741                 break;
2742             }
2743         }
2744     }
2745  the_end:
2746     stream_component_close(is, start_index);
2747     stream_component_open(is, stream_index);
2748 }
2749
2750
2751 static void toggle_full_screen(void)
2752 {
2753     is_full_screen = !is_full_screen;
2754     if (!fs_screen_width) {
2755         /* use default SDL method */
2756 //        SDL_WM_ToggleFullScreen(screen);
2757     }
2758     video_open(cur_stream);
2759 }
2760
2761 static void toggle_pause(void)
2762 {
2763     if (cur_stream)
2764         stream_pause(cur_stream);
2765     step = 0;
2766 }
2767
2768 static void step_to_next_frame(void)
2769 {
2770     if (cur_stream) {
2771         /* if the stream is paused unpause it, then step */
2772         if (cur_stream->paused)
2773             stream_pause(cur_stream);
2774     }
2775     step = 1;
2776 }
2777
2778 static void toggle_audio_display(void)
2779 {
2780     if (cur_stream) {
2781         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2782         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2783         fill_rectangle(screen,
2784                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2785                     bgcolor);
2786         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2787     }
2788 }
2789
2790 /* handle an event sent by the GUI */
2791 static void event_loop(void)
2792 {
2793     SDL_Event event;
2794     double incr, pos, frac;
2795
2796     for(;;) {
2797         double x;
2798         SDL_WaitEvent(&event);
2799         switch(event.type) {
2800         case SDL_KEYDOWN:
2801             if (exit_on_keydown) {
2802                 do_exit();
2803                 break;
2804             }
2805             switch(event.key.keysym.sym) {
2806             case SDLK_ESCAPE:
2807             case SDLK_q:
2808                 do_exit();
2809                 break;
2810             case SDLK_f:
2811                 toggle_full_screen();
2812                 break;
2813             case SDLK_p:
2814             case SDLK_SPACE:
2815                 toggle_pause();
2816                 break;
2817             case SDLK_s: //S: Step to next frame
2818                 step_to_next_frame();
2819                 break;
2820             case SDLK_a:
2821                 if (cur_stream)
2822                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2823                 break;
2824             case SDLK_v:
2825                 if (cur_stream)
2826                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2827                 break;
2828             case SDLK_t:
2829                 if (cur_stream)
2830                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2831                 break;
2832             case SDLK_w:
2833                 toggle_audio_display();
2834                 break;
2835             case SDLK_LEFT:
2836                 incr = -10.0;
2837                 goto do_seek;
2838             case SDLK_RIGHT:
2839                 incr = 10.0;
2840                 goto do_seek;
2841             case SDLK_UP:
2842                 incr = 60.0;
2843                 goto do_seek;
2844             case SDLK_DOWN:
2845                 incr = -60.0;
2846             do_seek:
2847                 if (cur_stream) {
2848                     if (seek_by_bytes) {
2849                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2850                             pos= cur_stream->video_current_pos;
2851                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2852                             pos= cur_stream->audio_pkt.pos;
2853                         }else
2854                             pos = url_ftell(cur_stream->ic->pb);
2855                         if (cur_stream->ic->bit_rate)
2856                             incr *= cur_stream->ic->bit_rate / 8.0;
2857                         else
2858                             incr *= 180000.0;
2859                         pos += incr;
2860                         stream_seek(cur_stream, pos, incr, 1);
2861                     } else {
2862                         pos = get_master_clock(cur_stream);
2863                         pos += incr;
2864                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2865                     }
2866                 }
2867                 break;
2868             default:
2869                 break;
2870             }
2871             break;
2872         case SDL_MOUSEBUTTONDOWN:
2873             if (exit_on_mousedown) {
2874                 do_exit();
2875                 break;
2876             }
2877         case SDL_MOUSEMOTION:
2878             if(event.type ==SDL_MOUSEBUTTONDOWN){
2879                 x= event.button.x;
2880             }else{
2881                 if(event.motion.state != SDL_PRESSED)
2882                     break;
2883                 x= event.motion.x;
2884             }
2885             if (cur_stream) {
2886                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2887                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2888                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2889                 }else{
2890                     int64_t ts;
2891                     int ns, hh, mm, ss;
2892                     int tns, thh, tmm, tss;
2893                     tns = cur_stream->ic->duration/1000000LL;
2894                     thh = tns/3600;
2895                     tmm = (tns%3600)/60;
2896                     tss = (tns%60);
2897                     frac = x/cur_stream->width;
2898                     ns = frac*tns;
2899                     hh = ns/3600;
2900                     mm = (ns%3600)/60;
2901                     ss = (ns%60);
2902                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2903                             hh, mm, ss, thh, tmm, tss);
2904                     ts = frac*cur_stream->ic->duration;
2905                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2906                         ts += cur_stream->ic->start_time;
2907                     stream_seek(cur_stream, ts, 0, 0);
2908                 }
2909             }
2910             break;
2911         case SDL_VIDEORESIZE:
2912             if (cur_stream) {
2913                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2914                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2915                 screen_width = cur_stream->width = event.resize.w;
2916                 screen_height= cur_stream->height= event.resize.h;
2917             }
2918             break;
2919         case SDL_QUIT:
2920         case FF_QUIT_EVENT:
2921             do_exit();
2922             break;
2923         case FF_ALLOC_EVENT:
2924             video_open(event.user.data1);
2925             alloc_picture(event.user.data1);
2926             break;
2927         case FF_REFRESH_EVENT:
2928             video_refresh_timer(event.user.data1);
2929             cur_stream->refresh=0;
2930             break;
2931         default:
2932             break;
2933         }
2934     }
2935 }
2936
2937 static void opt_frame_size(const char *arg)
2938 {
2939     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2940         fprintf(stderr, "Incorrect frame size\n");
2941         exit(1);
2942     }
2943     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2944         fprintf(stderr, "Frame size must be a multiple of 2\n");
2945         exit(1);
2946     }
2947 }
2948
2949 static int opt_width(const char *opt, const char *arg)
2950 {
2951     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2952     return 0;
2953 }
2954
2955 static int opt_height(const char *opt, const char *arg)
2956 {
2957     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2958     return 0;
2959 }
2960
2961 static void opt_format(const char *arg)
2962 {
2963     file_iformat = av_find_input_format(arg);
2964     if (!file_iformat) {
2965         fprintf(stderr, "Unknown input format: %s\n", arg);
2966         exit(1);
2967     }
2968 }
2969
2970 static void opt_frame_pix_fmt(const char *arg)
2971 {
2972     frame_pix_fmt = av_get_pix_fmt(arg);
2973 }
2974
2975 static int opt_sync(const char *opt, const char *arg)
2976 {
2977     if (!strcmp(arg, "audio"))
2978         av_sync_type = AV_SYNC_AUDIO_MASTER;
2979     else if (!strcmp(arg, "video"))
2980         av_sync_type = AV_SYNC_VIDEO_MASTER;
2981     else if (!strcmp(arg, "ext"))
2982         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2983     else {
2984         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2985         exit(1);
2986     }
2987     return 0;
2988 }
2989
2990 static int opt_seek(const char *opt, const char *arg)
2991 {
2992     start_time = parse_time_or_die(opt, arg, 1);
2993     return 0;
2994 }
2995
2996 static int opt_duration(const char *opt, const char *arg)
2997 {
2998     duration = parse_time_or_die(opt, arg, 1);
2999     return 0;
3000 }
3001
3002 static int opt_debug(const char *opt, const char *arg)
3003 {
3004     av_log_set_level(99);
3005     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3006     return 0;
3007 }
3008
3009 static int opt_vismv(const char *opt, const char *arg)
3010 {
3011     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3012     return 0;
3013 }
3014
3015 static int opt_thread_count(const char *opt, const char *arg)
3016 {
3017     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3018 #if !HAVE_THREADS
3019     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3020 #endif
3021     return 0;
3022 }
3023
3024 static const OptionDef options[] = {
3025 #include "cmdutils_common_opts.h"
3026     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3027     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3028     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3029     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3030     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3031     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3032     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3033     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3034     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3035     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3036     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3037     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3038     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3039     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3040     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3041     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3042     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3043     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3044     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3045     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3046     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3047     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3048     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3049     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3050     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3051     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3052     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3053     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3054     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3055     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3056     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3057     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3058     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3059     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3060     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3061     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3062     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3063 #if CONFIG_AVFILTER
3064     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3065 #endif
3066     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3067     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3068     { NULL, },
3069 };
3070
3071 static void show_usage(void)
3072 {
3073     printf("Simple media player\n");
3074     printf("usage: ffplay [options] input_file\n");
3075     printf("\n");
3076 }
3077
3078 static void show_help(void)
3079 {
3080     av_log_set_callback(log_callback_help);
3081     show_usage();
3082     show_help_options(options, "Main options:\n",
3083                       OPT_EXPERT, 0);
3084     show_help_options(options, "\nAdvanced options:\n",
3085                       OPT_EXPERT, OPT_EXPERT);
3086     printf("\n");
3087     av_opt_show2(avcodec_opts[0], NULL,
3088                  AV_OPT_FLAG_DECODING_PARAM, 0);
3089     printf("\n");
3090     av_opt_show2(avformat_opts, NULL,
3091                  AV_OPT_FLAG_DECODING_PARAM, 0);
3092 #if !CONFIG_AVFILTER
3093     printf("\n");
3094     av_opt_show2(sws_opts, NULL,
3095                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3096 #endif
3097     printf("\nWhile playing:\n"
3098            "q, ESC              quit\n"
3099            "f                   toggle full screen\n"
3100            "p, SPC              pause\n"
3101            "a                   cycle audio channel\n"
3102            "v                   cycle video channel\n"
3103            "t                   cycle subtitle channel\n"
3104            "w                   show audio waves\n"
3105            "s                   activate frame-step mode\n"
3106            "left/right          seek backward/forward 10 seconds\n"
3107            "down/up             seek backward/forward 1 minute\n"
3108            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3109            );
3110 }
3111
3112 static void opt_input_file(const char *filename)
3113 {
3114     if (input_filename) {
3115         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3116                 filename, input_filename);
3117         exit(1);
3118     }
3119     if (!strcmp(filename, "-"))
3120         filename = "pipe:";
3121     input_filename = filename;
3122 }
3123
3124 /* Called from the main */
3125 int main(int argc, char **argv)
3126 {
3127     int flags;
3128
3129     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3130
3131     /* register all codecs, demux and protocols */
3132     avcodec_register_all();
3133 #if CONFIG_AVDEVICE
3134     avdevice_register_all();
3135 #endif
3136 #if CONFIG_AVFILTER
3137     avfilter_register_all();
3138 #endif
3139     av_register_all();
3140
3141     init_opts();
3142
3143     show_banner();
3144
3145     parse_options(argc, argv, options, opt_input_file);
3146
3147     if (!input_filename) {
3148         show_usage();
3149         fprintf(stderr, "An input file must be specified\n");
3150         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3151         exit(1);
3152     }
3153
3154     if (display_disable) {
3155         video_disable = 1;
3156     }
3157     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3158 #if !defined(__MINGW32__) && !defined(__APPLE__)
3159     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3160 #endif
3161     if (SDL_Init (flags)) {
3162         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3163         exit(1);
3164     }
3165
3166     if (!display_disable) {
3167 #if HAVE_SDL_VIDEO_SIZE
3168         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3169         fs_screen_width = vi->current_w;
3170         fs_screen_height = vi->current_h;
3171 #endif
3172     }
3173
3174     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3175     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3176     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3177
3178     av_init_packet(&flush_pkt);
3179     flush_pkt.data= "FLUSH";
3180
3181     cur_stream = stream_open(input_filename, file_iformat);
3182
3183     event_loop();
3184
3185     /* never returns */
3186
3187     return 0;
3188 }