Cosmetics: indentation
[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 #include "config.h"
23 #include <inttypes.h>
24 #include <math.h>
25 #include <limits.h>
26 #include "libavutil/avstring.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavformat/avformat.h"
29 #include "libavdevice/avdevice.h"
30 #include "libswscale/swscale.h"
31 #include "libavcodec/audioconvert.h"
32 #include "libavcodec/colorspace.h"
33 #include "libavcodec/opt.h"
34 #include "libavcodec/avfft.h"
35
36 #if CONFIG_AVFILTER
37 # include "libavfilter/avfilter.h"
38 # include "libavfilter/avfiltergraph.h"
39 # include "libavfilter/graphparser.h"
40 #endif
41
42 #include "cmdutils.h"
43
44 #include <SDL.h>
45 #include <SDL_thread.h>
46
47 #ifdef __MINGW32__
48 #undef main /* We don't want SDL to override our main() */
49 #endif
50
51 #include <unistd.h>
52 #include <assert.h>
53
54 const char program_name[] = "FFplay";
55 const int program_birth_year = 2003;
56
57 //#define DEBUG_SYNC
58
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
61 #define MIN_FRAMES 5
62
63 /* SDL audio buffer size, in samples. Should be small to have precise
64    A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
66
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
71
72 #define FRAME_SKIP_FACTOR 0.05
73
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
76
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB   20
79
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
82
83 #if !CONFIG_AVFILTER
84 static int sws_flags = SWS_BICUBIC;
85 #endif
86
87 typedef struct PacketQueue {
88     AVPacketList *first_pkt, *last_pkt;
89     int nb_packets;
90     int size;
91     int abort_request;
92     SDL_mutex *mutex;
93     SDL_cond *cond;
94 } PacketQueue;
95
96 #define VIDEO_PICTURE_QUEUE_SIZE 2
97 #define SUBPICTURE_QUEUE_SIZE 4
98
99 typedef struct VideoPicture {
100     double pts;                                  ///<presentation time stamp for this picture
101     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
102     int64_t pos;                                 ///<byte position in file
103     SDL_Overlay *bmp;
104     int width, height; /* source height & width */
105     int allocated;
106     enum PixelFormat pix_fmt;
107
108 #if CONFIG_AVFILTER
109     AVFilterPicRef *picref;
110 #endif
111 } VideoPicture;
112
113 typedef struct SubPicture {
114     double pts; /* presentation time stamp for this picture */
115     AVSubtitle sub;
116 } SubPicture;
117
118 enum {
119     AV_SYNC_AUDIO_MASTER, /* default choice */
120     AV_SYNC_VIDEO_MASTER,
121     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
122 };
123
124 typedef struct VideoState {
125     SDL_Thread *parse_tid;
126     SDL_Thread *video_tid;
127     SDL_Thread *refresh_tid;
128     AVInputFormat *iformat;
129     int no_background;
130     int abort_request;
131     int paused;
132     int last_paused;
133     int seek_req;
134     int seek_flags;
135     int64_t seek_pos;
136     int64_t seek_rel;
137     int read_pause_return;
138     AVFormatContext *ic;
139     int dtg_active_format;
140
141     int audio_stream;
142
143     int av_sync_type;
144     double external_clock; /* external clock base */
145     int64_t external_clock_time;
146
147     double audio_clock;
148     double audio_diff_cum; /* used for AV difference average computation */
149     double audio_diff_avg_coef;
150     double audio_diff_threshold;
151     int audio_diff_avg_count;
152     AVStream *audio_st;
153     PacketQueue audioq;
154     int audio_hw_buf_size;
155     /* samples output by the codec. we reserve more space for avsync
156        compensation */
157     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
158     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159     uint8_t *audio_buf;
160     unsigned int audio_buf_size; /* in bytes */
161     int audio_buf_index; /* in bytes */
162     AVPacket audio_pkt_temp;
163     AVPacket audio_pkt;
164     enum SampleFormat audio_src_fmt;
165     AVAudioConvert *reformat_ctx;
166
167     int show_audio; /* if true, display audio samples */
168     int16_t sample_array[SAMPLE_ARRAY_SIZE];
169     int sample_array_index;
170     int last_i_start;
171     RDFTContext *rdft;
172     int rdft_bits;
173     int xpos;
174
175     SDL_Thread *subtitle_tid;
176     int subtitle_stream;
177     int subtitle_stream_changed;
178     AVStream *subtitle_st;
179     PacketQueue subtitleq;
180     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
181     int subpq_size, subpq_rindex, subpq_windex;
182     SDL_mutex *subpq_mutex;
183     SDL_cond *subpq_cond;
184
185     double frame_timer;
186     double frame_last_pts;
187     double frame_last_delay;
188     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
189     int video_stream;
190     AVStream *video_st;
191     PacketQueue videoq;
192     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
193     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
194     int64_t video_current_pos;                   ///<current displayed file pos
195     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
196     int pictq_size, pictq_rindex, pictq_windex;
197     SDL_mutex *pictq_mutex;
198     SDL_cond *pictq_cond;
199 #if !CONFIG_AVFILTER
200     struct SwsContext *img_convert_ctx;
201 #endif
202
203     //    QETimer *video_timer;
204     char filename[1024];
205     int width, height, xleft, ytop;
206
207     int64_t faulty_pts;
208     int64_t faulty_dts;
209     int64_t last_dts_for_fault_detection;
210     int64_t last_pts_for_fault_detection;
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 int debug = 0;
248 static int debug_mv = 0;
249 static int step = 0;
250 static int thread_count = 1;
251 static int workaround_bugs = 1;
252 static int fast = 0;
253 static int genpts = 0;
254 static int lowres = 0;
255 static int idct = FF_IDCT_AUTO;
256 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259 static int error_recognition = FF_ER_CAREFUL;
260 static int error_concealment = 3;
261 static int decoder_reorder_pts= -1;
262 static int autoexit;
263 static int loop=1;
264 static int framedrop=1;
265
266 static int rdftspeed=20;
267 #if CONFIG_AVFILTER
268 static char *vfilters = NULL;
269 #endif
270
271 /* current context */
272 static int is_full_screen;
273 static VideoState *cur_stream;
274 static int64_t audio_callback_time;
275
276 static AVPacket flush_pkt;
277
278 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
279 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
280 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
281
282 static SDL_Surface *screen;
283
284 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
285
286 /* packet queue handling */
287 static void packet_queue_init(PacketQueue *q)
288 {
289     memset(q, 0, sizeof(PacketQueue));
290     q->mutex = SDL_CreateMutex();
291     q->cond = SDL_CreateCond();
292     packet_queue_put(q, &flush_pkt);
293 }
294
295 static void packet_queue_flush(PacketQueue *q)
296 {
297     AVPacketList *pkt, *pkt1;
298
299     SDL_LockMutex(q->mutex);
300     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
301         pkt1 = pkt->next;
302         av_free_packet(&pkt->pkt);
303         av_freep(&pkt);
304     }
305     q->last_pkt = NULL;
306     q->first_pkt = NULL;
307     q->nb_packets = 0;
308     q->size = 0;
309     SDL_UnlockMutex(q->mutex);
310 }
311
312 static void packet_queue_end(PacketQueue *q)
313 {
314     packet_queue_flush(q);
315     SDL_DestroyMutex(q->mutex);
316     SDL_DestroyCond(q->cond);
317 }
318
319 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
320 {
321     AVPacketList *pkt1;
322
323     /* duplicate the packet */
324     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
325         return -1;
326
327     pkt1 = av_malloc(sizeof(AVPacketList));
328     if (!pkt1)
329         return -1;
330     pkt1->pkt = *pkt;
331     pkt1->next = NULL;
332
333
334     SDL_LockMutex(q->mutex);
335
336     if (!q->last_pkt)
337
338         q->first_pkt = pkt1;
339     else
340         q->last_pkt->next = pkt1;
341     q->last_pkt = pkt1;
342     q->nb_packets++;
343     q->size += pkt1->pkt.size + sizeof(*pkt1);
344     /* XXX: should duplicate packet data in DV case */
345     SDL_CondSignal(q->cond);
346
347     SDL_UnlockMutex(q->mutex);
348     return 0;
349 }
350
351 static void packet_queue_abort(PacketQueue *q)
352 {
353     SDL_LockMutex(q->mutex);
354
355     q->abort_request = 1;
356
357     SDL_CondSignal(q->cond);
358
359     SDL_UnlockMutex(q->mutex);
360 }
361
362 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
363 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
364 {
365     AVPacketList *pkt1;
366     int ret;
367
368     SDL_LockMutex(q->mutex);
369
370     for(;;) {
371         if (q->abort_request) {
372             ret = -1;
373             break;
374         }
375
376         pkt1 = q->first_pkt;
377         if (pkt1) {
378             q->first_pkt = pkt1->next;
379             if (!q->first_pkt)
380                 q->last_pkt = NULL;
381             q->nb_packets--;
382             q->size -= pkt1->pkt.size + sizeof(*pkt1);
383             *pkt = pkt1->pkt;
384             av_free(pkt1);
385             ret = 1;
386             break;
387         } else if (!block) {
388             ret = 0;
389             break;
390         } else {
391             SDL_CondWait(q->cond, q->mutex);
392         }
393     }
394     SDL_UnlockMutex(q->mutex);
395     return ret;
396 }
397
398 static inline void fill_rectangle(SDL_Surface *screen,
399                                   int x, int y, int w, int h, int color)
400 {
401     SDL_Rect rect;
402     rect.x = x;
403     rect.y = y;
404     rect.w = w;
405     rect.h = h;
406     SDL_FillRect(screen, &rect, color);
407 }
408
409 #if 0
410 /* draw only the border of a rectangle */
411 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
412 {
413     int w1, w2, h1, h2;
414
415     /* fill the background */
416     w1 = x;
417     if (w1 < 0)
418         w1 = 0;
419     w2 = s->width - (x + w);
420     if (w2 < 0)
421         w2 = 0;
422     h1 = y;
423     if (h1 < 0)
424         h1 = 0;
425     h2 = s->height - (y + h);
426     if (h2 < 0)
427         h2 = 0;
428     fill_rectangle(screen,
429                    s->xleft, s->ytop,
430                    w1, s->height,
431                    color);
432     fill_rectangle(screen,
433                    s->xleft + s->width - w2, s->ytop,
434                    w2, s->height,
435                    color);
436     fill_rectangle(screen,
437                    s->xleft + w1, s->ytop,
438                    s->width - w1 - w2, h1,
439                    color);
440     fill_rectangle(screen,
441                    s->xleft + w1, s->ytop + s->height - h2,
442                    s->width - w1 - w2, h2,
443                    color);
444 }
445 #endif
446
447 #define ALPHA_BLEND(a, oldp, newp, s)\
448 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
449
450 #define RGBA_IN(r, g, b, a, s)\
451 {\
452     unsigned int v = ((const uint32_t *)(s))[0];\
453     a = (v >> 24) & 0xff;\
454     r = (v >> 16) & 0xff;\
455     g = (v >> 8) & 0xff;\
456     b = v & 0xff;\
457 }
458
459 #define YUVA_IN(y, u, v, a, s, pal)\
460 {\
461     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
462     a = (val >> 24) & 0xff;\
463     y = (val >> 16) & 0xff;\
464     u = (val >> 8) & 0xff;\
465     v = val & 0xff;\
466 }
467
468 #define YUVA_OUT(d, y, u, v, a)\
469 {\
470     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
471 }
472
473
474 #define BPP 1
475
476 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
477 {
478     int wrap, wrap3, width2, skip2;
479     int y, u, v, a, u1, v1, a1, w, h;
480     uint8_t *lum, *cb, *cr;
481     const uint8_t *p;
482     const uint32_t *pal;
483     int dstx, dsty, dstw, dsth;
484
485     dstw = av_clip(rect->w, 0, imgw);
486     dsth = av_clip(rect->h, 0, imgh);
487     dstx = av_clip(rect->x, 0, imgw - dstw);
488     dsty = av_clip(rect->y, 0, imgh - dsth);
489     lum = dst->data[0] + dsty * dst->linesize[0];
490     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
491     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
492
493     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
494     skip2 = dstx >> 1;
495     wrap = dst->linesize[0];
496     wrap3 = rect->pict.linesize[0];
497     p = rect->pict.data[0];
498     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
499
500     if (dsty & 1) {
501         lum += dstx;
502         cb += skip2;
503         cr += skip2;
504
505         if (dstx & 1) {
506             YUVA_IN(y, u, v, a, p, pal);
507             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
508             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
509             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
510             cb++;
511             cr++;
512             lum++;
513             p += BPP;
514         }
515         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
516             YUVA_IN(y, u, v, a, p, pal);
517             u1 = u;
518             v1 = v;
519             a1 = a;
520             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521
522             YUVA_IN(y, u, v, a, p + BPP, pal);
523             u1 += u;
524             v1 += v;
525             a1 += a;
526             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
527             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
528             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
529             cb++;
530             cr++;
531             p += 2 * BPP;
532             lum += 2;
533         }
534         if (w) {
535             YUVA_IN(y, u, v, a, p, pal);
536             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
537             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
538             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
539             p++;
540             lum++;
541         }
542         p += wrap3 - dstw * BPP;
543         lum += wrap - dstw - dstx;
544         cb += dst->linesize[1] - width2 - skip2;
545         cr += dst->linesize[2] - width2 - skip2;
546     }
547     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
548         lum += dstx;
549         cb += skip2;
550         cr += skip2;
551
552         if (dstx & 1) {
553             YUVA_IN(y, u, v, a, p, pal);
554             u1 = u;
555             v1 = v;
556             a1 = a;
557             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
558             p += wrap3;
559             lum += wrap;
560             YUVA_IN(y, u, v, a, p, pal);
561             u1 += u;
562             v1 += v;
563             a1 += a;
564             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
565             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
566             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
567             cb++;
568             cr++;
569             p += -wrap3 + BPP;
570             lum += -wrap + 1;
571         }
572         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
573             YUVA_IN(y, u, v, a, p, pal);
574             u1 = u;
575             v1 = v;
576             a1 = a;
577             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
578
579             YUVA_IN(y, u, v, a, p + BPP, pal);
580             u1 += u;
581             v1 += v;
582             a1 += a;
583             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
584             p += wrap3;
585             lum += wrap;
586
587             YUVA_IN(y, u, v, a, p, pal);
588             u1 += u;
589             v1 += v;
590             a1 += a;
591             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
592
593             YUVA_IN(y, u, v, a, p + BPP, pal);
594             u1 += u;
595             v1 += v;
596             a1 += a;
597             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
598
599             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
600             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
601
602             cb++;
603             cr++;
604             p += -wrap3 + 2 * BPP;
605             lum += -wrap + 2;
606         }
607         if (w) {
608             YUVA_IN(y, u, v, a, p, pal);
609             u1 = u;
610             v1 = v;
611             a1 = a;
612             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
613             p += wrap3;
614             lum += wrap;
615             YUVA_IN(y, u, v, a, p, pal);
616             u1 += u;
617             v1 += v;
618             a1 += a;
619             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
621             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
622             cb++;
623             cr++;
624             p += -wrap3 + BPP;
625             lum += -wrap + 1;
626         }
627         p += wrap3 + (wrap3 - dstw * BPP);
628         lum += wrap + (wrap - dstw - dstx);
629         cb += dst->linesize[1] - width2 - skip2;
630         cr += dst->linesize[2] - width2 - skip2;
631     }
632     /* handle odd height */
633     if (h) {
634         lum += dstx;
635         cb += skip2;
636         cr += skip2;
637
638         if (dstx & 1) {
639             YUVA_IN(y, u, v, a, p, pal);
640             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
641             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
642             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
643             cb++;
644             cr++;
645             lum++;
646             p += BPP;
647         }
648         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
649             YUVA_IN(y, u, v, a, p, pal);
650             u1 = u;
651             v1 = v;
652             a1 = a;
653             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
654
655             YUVA_IN(y, u, v, a, p + BPP, pal);
656             u1 += u;
657             v1 += v;
658             a1 += a;
659             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
660             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
661             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
662             cb++;
663             cr++;
664             p += 2 * BPP;
665             lum += 2;
666         }
667         if (w) {
668             YUVA_IN(y, u, v, a, p, pal);
669             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
670             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
671             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
672         }
673     }
674 }
675
676 static void free_subpicture(SubPicture *sp)
677 {
678     int i;
679
680     for (i = 0; i < sp->sub.num_rects; i++)
681     {
682         av_freep(&sp->sub.rects[i]->pict.data[0]);
683         av_freep(&sp->sub.rects[i]->pict.data[1]);
684         av_freep(&sp->sub.rects[i]);
685     }
686
687     av_free(sp->sub.rects);
688
689     memset(&sp->sub, 0, sizeof(AVSubtitle));
690 }
691
692 static void video_image_display(VideoState *is)
693 {
694     VideoPicture *vp;
695     SubPicture *sp;
696     AVPicture pict;
697     float aspect_ratio;
698     int width, height, x, y;
699     SDL_Rect rect;
700     int i;
701
702     vp = &is->pictq[is->pictq_rindex];
703     if (vp->bmp) {
704 #if CONFIG_AVFILTER
705          if (vp->picref->pixel_aspect.num == 0)
706              aspect_ratio = 0;
707          else
708              aspect_ratio = av_q2d(vp->picref->pixel_aspect);
709 #else
710
711         /* XXX: use variable in the frame */
712         if (is->video_st->sample_aspect_ratio.num)
713             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
714         else if (is->video_st->codec->sample_aspect_ratio.num)
715             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
716         else
717             aspect_ratio = 0;
718 #endif
719         if (aspect_ratio <= 0.0)
720             aspect_ratio = 1.0;
721         aspect_ratio *= (float)vp->width / (float)vp->height;
722         /* if an active format is indicated, then it overrides the
723            mpeg format */
724 #if 0
725         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
726             is->dtg_active_format = is->video_st->codec->dtg_active_format;
727             printf("dtg_active_format=%d\n", is->dtg_active_format);
728         }
729 #endif
730 #if 0
731         switch(is->video_st->codec->dtg_active_format) {
732         case FF_DTG_AFD_SAME:
733         default:
734             /* nothing to do */
735             break;
736         case FF_DTG_AFD_4_3:
737             aspect_ratio = 4.0 / 3.0;
738             break;
739         case FF_DTG_AFD_16_9:
740             aspect_ratio = 16.0 / 9.0;
741             break;
742         case FF_DTG_AFD_14_9:
743             aspect_ratio = 14.0 / 9.0;
744             break;
745         case FF_DTG_AFD_4_3_SP_14_9:
746             aspect_ratio = 14.0 / 9.0;
747             break;
748         case FF_DTG_AFD_16_9_SP_14_9:
749             aspect_ratio = 14.0 / 9.0;
750             break;
751         case FF_DTG_AFD_SP_4_3:
752             aspect_ratio = 4.0 / 3.0;
753             break;
754         }
755 #endif
756
757         if (is->subtitle_st)
758         {
759             if (is->subpq_size > 0)
760             {
761                 sp = &is->subpq[is->subpq_rindex];
762
763                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
764                 {
765                     SDL_LockYUVOverlay (vp->bmp);
766
767                     pict.data[0] = vp->bmp->pixels[0];
768                     pict.data[1] = vp->bmp->pixels[2];
769                     pict.data[2] = vp->bmp->pixels[1];
770
771                     pict.linesize[0] = vp->bmp->pitches[0];
772                     pict.linesize[1] = vp->bmp->pitches[2];
773                     pict.linesize[2] = vp->bmp->pitches[1];
774
775                     for (i = 0; i < sp->sub.num_rects; i++)
776                         blend_subrect(&pict, sp->sub.rects[i],
777                                       vp->bmp->w, vp->bmp->h);
778
779                     SDL_UnlockYUVOverlay (vp->bmp);
780                 }
781             }
782         }
783
784
785         /* XXX: we suppose the screen has a 1.0 pixel ratio */
786         height = is->height;
787         width = ((int)rint(height * aspect_ratio)) & ~1;
788         if (width > is->width) {
789             width = is->width;
790             height = ((int)rint(width / aspect_ratio)) & ~1;
791         }
792         x = (is->width - width) / 2;
793         y = (is->height - height) / 2;
794         if (!is->no_background) {
795             /* fill the background */
796             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
797         } else {
798             is->no_background = 0;
799         }
800         rect.x = is->xleft + x;
801         rect.y = is->ytop  + y;
802         rect.w = width;
803         rect.h = height;
804         SDL_DisplayYUVOverlay(vp->bmp, &rect);
805     } else {
806 #if 0
807         fill_rectangle(screen,
808                        is->xleft, is->ytop, is->width, is->height,
809                        QERGB(0x00, 0x00, 0x00));
810 #endif
811     }
812 }
813
814 static inline int compute_mod(int a, int b)
815 {
816     a = a % b;
817     if (a >= 0)
818         return a;
819     else
820         return a + b;
821 }
822
823 static void video_audio_display(VideoState *s)
824 {
825     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
826     int ch, channels, h, h2, bgcolor, fgcolor;
827     int16_t time_diff;
828     int rdft_bits, nb_freq;
829
830     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
831         ;
832     nb_freq= 1<<(rdft_bits-1);
833
834     /* compute display index : center on currently output samples */
835     channels = s->audio_st->codec->channels;
836     nb_display_channels = channels;
837     if (!s->paused) {
838         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
839         n = 2 * channels;
840         delay = audio_write_get_buf_size(s);
841         delay /= n;
842
843         /* to be more precise, we take into account the time spent since
844            the last buffer computation */
845         if (audio_callback_time) {
846             time_diff = av_gettime() - audio_callback_time;
847             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
848         }
849
850         delay += 2*data_used;
851         if (delay < data_used)
852             delay = data_used;
853
854         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
855         if(s->show_audio==1){
856             h= INT_MIN;
857             for(i=0; i<1000; i+=channels){
858                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
859                 int a= s->sample_array[idx];
860                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
861                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
862                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
863                 int score= a-d;
864                 if(h<score && (b^c)<0){
865                     h= score;
866                     i_start= idx;
867                 }
868             }
869         }
870
871         s->last_i_start = i_start;
872     } else {
873         i_start = s->last_i_start;
874     }
875
876     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
877     if(s->show_audio==1){
878         fill_rectangle(screen,
879                        s->xleft, s->ytop, s->width, s->height,
880                        bgcolor);
881
882         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
883
884         /* total height for one channel */
885         h = s->height / nb_display_channels;
886         /* graph height / 2 */
887         h2 = (h * 9) / 20;
888         for(ch = 0;ch < nb_display_channels; ch++) {
889             i = i_start + ch;
890             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
891             for(x = 0; x < s->width; x++) {
892                 y = (s->sample_array[i] * h2) >> 15;
893                 if (y < 0) {
894                     y = -y;
895                     ys = y1 - y;
896                 } else {
897                     ys = y1;
898                 }
899                 fill_rectangle(screen,
900                                s->xleft + x, ys, 1, y,
901                                fgcolor);
902                 i += channels;
903                 if (i >= SAMPLE_ARRAY_SIZE)
904                     i -= SAMPLE_ARRAY_SIZE;
905             }
906         }
907
908         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
909
910         for(ch = 1;ch < nb_display_channels; ch++) {
911             y = s->ytop + ch * h;
912             fill_rectangle(screen,
913                            s->xleft, y, s->width, 1,
914                            fgcolor);
915         }
916         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
917     }else{
918         nb_display_channels= FFMIN(nb_display_channels, 2);
919         if(rdft_bits != s->rdft_bits){
920             av_rdft_end(s->rdft);
921             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
922             s->rdft_bits= rdft_bits;
923         }
924         {
925             FFTSample data[2][2*nb_freq];
926             for(ch = 0;ch < nb_display_channels; ch++) {
927                 i = i_start + ch;
928                 for(x = 0; x < 2*nb_freq; x++) {
929                     double w= (x-nb_freq)*(1.0/nb_freq);
930                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
931                     i += channels;
932                     if (i >= SAMPLE_ARRAY_SIZE)
933                         i -= SAMPLE_ARRAY_SIZE;
934                 }
935                 av_rdft_calc(s->rdft, data[ch]);
936             }
937             //least efficient way to do this, we should of course directly access it but its more than fast enough
938             for(y=0; y<s->height; y++){
939                 double w= 1/sqrt(nb_freq);
940                 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]));
941                 int b= sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + data[1][2*y+1]*data[1][2*y+1]));
942                 a= FFMIN(a,255);
943                 b= FFMIN(b,255);
944                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
945
946                 fill_rectangle(screen,
947                             s->xpos, s->height-y, 1, 1,
948                             fgcolor);
949             }
950         }
951         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
952         s->xpos++;
953         if(s->xpos >= s->width)
954             s->xpos= s->xleft;
955     }
956 }
957
958 static int video_open(VideoState *is){
959     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
960     int w,h;
961
962     if(is_full_screen) flags |= SDL_FULLSCREEN;
963     else               flags |= SDL_RESIZABLE;
964
965     if (is_full_screen && fs_screen_width) {
966         w = fs_screen_width;
967         h = fs_screen_height;
968     } else if(!is_full_screen && screen_width){
969         w = screen_width;
970         h = screen_height;
971 #if CONFIG_AVFILTER
972     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
973         w = is->out_video_filter->inputs[0]->w;
974         h = is->out_video_filter->inputs[0]->h;
975 #else
976     }else if (is->video_st && is->video_st->codec->width){
977         w = is->video_st->codec->width;
978         h = is->video_st->codec->height;
979 #endif
980     } else {
981         w = 640;
982         h = 480;
983     }
984     if(screen && is->width == screen->w && screen->w == w
985        && is->height== screen->h && screen->h == h)
986         return 0;
987
988 #ifndef __APPLE__
989     screen = SDL_SetVideoMode(w, h, 0, flags);
990 #else
991     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
992     screen = SDL_SetVideoMode(w, h, 24, flags);
993 #endif
994     if (!screen) {
995         fprintf(stderr, "SDL: could not set video mode - exiting\n");
996         return -1;
997     }
998     if (!window_title)
999         window_title = input_filename;
1000     SDL_WM_SetCaption(window_title, window_title);
1001
1002     is->width = screen->w;
1003     is->height = screen->h;
1004
1005     return 0;
1006 }
1007
1008 /* display the current picture, if any */
1009 static void video_display(VideoState *is)
1010 {
1011     if(!screen)
1012         video_open(cur_stream);
1013     if (is->audio_st && is->show_audio)
1014         video_audio_display(is);
1015     else if (is->video_st)
1016         video_image_display(is);
1017 }
1018
1019 static int refresh_thread(void *opaque)
1020 {
1021     VideoState *is= opaque;
1022     while(!is->abort_request){
1023     SDL_Event event;
1024     event.type = FF_REFRESH_EVENT;
1025     event.user.data1 = opaque;
1026         if(!is->refresh){
1027             is->refresh=1;
1028     SDL_PushEvent(&event);
1029         }
1030         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
1031     }
1032     return 0;
1033 }
1034
1035 /* get the current audio clock value */
1036 static double get_audio_clock(VideoState *is)
1037 {
1038     double pts;
1039     int hw_buf_size, bytes_per_sec;
1040     pts = is->audio_clock;
1041     hw_buf_size = audio_write_get_buf_size(is);
1042     bytes_per_sec = 0;
1043     if (is->audio_st) {
1044         bytes_per_sec = is->audio_st->codec->sample_rate *
1045             2 * is->audio_st->codec->channels;
1046     }
1047     if (bytes_per_sec)
1048         pts -= (double)hw_buf_size / bytes_per_sec;
1049     return pts;
1050 }
1051
1052 /* get the current video clock value */
1053 static double get_video_clock(VideoState *is)
1054 {
1055     if (is->paused) {
1056         return is->video_current_pts;
1057     } else {
1058         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1059     }
1060 }
1061
1062 /* get the current external clock value */
1063 static double get_external_clock(VideoState *is)
1064 {
1065     int64_t ti;
1066     ti = av_gettime();
1067     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1068 }
1069
1070 /* get the current master clock value */
1071 static double get_master_clock(VideoState *is)
1072 {
1073     double val;
1074
1075     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1076         if (is->video_st)
1077             val = get_video_clock(is);
1078         else
1079             val = get_audio_clock(is);
1080     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1081         if (is->audio_st)
1082             val = get_audio_clock(is);
1083         else
1084             val = get_video_clock(is);
1085     } else {
1086         val = get_external_clock(is);
1087     }
1088     return val;
1089 }
1090
1091 /* seek in the stream */
1092 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1093 {
1094     if (!is->seek_req) {
1095         is->seek_pos = pos;
1096         is->seek_rel = rel;
1097         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1098         if (seek_by_bytes)
1099             is->seek_flags |= AVSEEK_FLAG_BYTE;
1100         is->seek_req = 1;
1101     }
1102 }
1103
1104 /* pause or resume the video */
1105 static void stream_pause(VideoState *is)
1106 {
1107     if (is->paused) {
1108         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1109         if(is->read_pause_return != AVERROR(ENOSYS)){
1110             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1111         }
1112         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1113     }
1114     is->paused = !is->paused;
1115 }
1116
1117 static double compute_target_time(double frame_current_pts, VideoState *is)
1118 {
1119     double delay, sync_threshold, diff;
1120
1121     /* compute nominal delay */
1122     delay = frame_current_pts - is->frame_last_pts;
1123     if (delay <= 0 || delay >= 10.0) {
1124         /* if incorrect delay, use previous one */
1125         delay = is->frame_last_delay;
1126     } else {
1127         is->frame_last_delay = delay;
1128     }
1129     is->frame_last_pts = frame_current_pts;
1130
1131     /* update delay to follow master synchronisation source */
1132     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1133          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1134         /* if video is slave, we try to correct big delays by
1135            duplicating or deleting a frame */
1136         diff = get_video_clock(is) - get_master_clock(is);
1137
1138         /* skip or repeat frame. We take into account the
1139            delay to compute the threshold. I still don't know
1140            if it is the best guess */
1141         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1142         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1143             if (diff <= -sync_threshold)
1144                 delay = 0;
1145             else if (diff >= sync_threshold)
1146                 delay = 2 * delay;
1147         }
1148     }
1149     is->frame_timer += delay;
1150 #if defined(DEBUG_SYNC)
1151     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1152             delay, actual_delay, frame_current_pts, -diff);
1153 #endif
1154
1155     return is->frame_timer;
1156 }
1157
1158 /* called to display each frame */
1159 static void video_refresh_timer(void *opaque)
1160 {
1161     VideoState *is = opaque;
1162     VideoPicture *vp;
1163
1164     SubPicture *sp, *sp2;
1165
1166     if (is->video_st) {
1167 retry:
1168         if (is->pictq_size == 0) {
1169             //nothing to do, no picture to display in the que
1170         } else {
1171             double time= av_gettime()/1000000.0;
1172             double next_target;
1173             /* dequeue the picture */
1174             vp = &is->pictq[is->pictq_rindex];
1175
1176             if(time < vp->target_clock)
1177                 return;
1178             /* update current video pts */
1179             is->video_current_pts = vp->pts;
1180             is->video_current_pts_drift = is->video_current_pts - time;
1181             is->video_current_pos = vp->pos;
1182             if(is->pictq_size > 1){
1183                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1184                 assert(nextvp->target_clock >= vp->target_clock);
1185                 next_target= nextvp->target_clock;
1186             }else{
1187                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1188             }
1189             if(framedrop && time > next_target){
1190                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1191                 if(is->pictq_size > 1 || time > next_target + 0.5){
1192                     /* update queue size and signal for next picture */
1193                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1194                         is->pictq_rindex = 0;
1195
1196                     SDL_LockMutex(is->pictq_mutex);
1197                     is->pictq_size--;
1198                     SDL_CondSignal(is->pictq_cond);
1199                     SDL_UnlockMutex(is->pictq_mutex);
1200                     goto retry;
1201                 }
1202             }
1203
1204             if(is->subtitle_st) {
1205                 if (is->subtitle_stream_changed) {
1206                     SDL_LockMutex(is->subpq_mutex);
1207
1208                     while (is->subpq_size) {
1209                         free_subpicture(&is->subpq[is->subpq_rindex]);
1210
1211                         /* update queue size and signal for next picture */
1212                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1213                             is->subpq_rindex = 0;
1214
1215                         is->subpq_size--;
1216                     }
1217                     is->subtitle_stream_changed = 0;
1218
1219                     SDL_CondSignal(is->subpq_cond);
1220                     SDL_UnlockMutex(is->subpq_mutex);
1221                 } else {
1222                     if (is->subpq_size > 0) {
1223                         sp = &is->subpq[is->subpq_rindex];
1224
1225                         if (is->subpq_size > 1)
1226                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1227                         else
1228                             sp2 = NULL;
1229
1230                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1231                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1232                         {
1233                             free_subpicture(sp);
1234
1235                             /* update queue size and signal for next picture */
1236                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1237                                 is->subpq_rindex = 0;
1238
1239                             SDL_LockMutex(is->subpq_mutex);
1240                             is->subpq_size--;
1241                             SDL_CondSignal(is->subpq_cond);
1242                             SDL_UnlockMutex(is->subpq_mutex);
1243                         }
1244                     }
1245                 }
1246             }
1247
1248             /* display picture */
1249             video_display(is);
1250
1251             /* update queue size and signal for next picture */
1252             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1253                 is->pictq_rindex = 0;
1254
1255             SDL_LockMutex(is->pictq_mutex);
1256             is->pictq_size--;
1257             SDL_CondSignal(is->pictq_cond);
1258             SDL_UnlockMutex(is->pictq_mutex);
1259         }
1260     } else if (is->audio_st) {
1261         /* draw the next audio frame */
1262
1263         /* if only audio stream, then display the audio bars (better
1264            than nothing, just to test the implementation */
1265
1266         /* display picture */
1267         video_display(is);
1268     }
1269     if (show_status) {
1270         static int64_t last_time;
1271         int64_t cur_time;
1272         int aqsize, vqsize, sqsize;
1273         double av_diff;
1274
1275         cur_time = av_gettime();
1276         if (!last_time || (cur_time - last_time) >= 30000) {
1277             aqsize = 0;
1278             vqsize = 0;
1279             sqsize = 0;
1280             if (is->audio_st)
1281                 aqsize = is->audioq.size;
1282             if (is->video_st)
1283                 vqsize = is->videoq.size;
1284             if (is->subtitle_st)
1285                 sqsize = is->subtitleq.size;
1286             av_diff = 0;
1287             if (is->audio_st && is->video_st)
1288                 av_diff = get_audio_clock(is) - get_video_clock(is);
1289             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1290                    get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1291             fflush(stdout);
1292             last_time = cur_time;
1293         }
1294     }
1295 }
1296
1297 /* allocate a picture (needs to do that in main thread to avoid
1298    potential locking problems */
1299 static void alloc_picture(void *opaque)
1300 {
1301     VideoState *is = opaque;
1302     VideoPicture *vp;
1303
1304     vp = &is->pictq[is->pictq_windex];
1305
1306     if (vp->bmp)
1307         SDL_FreeYUVOverlay(vp->bmp);
1308
1309 #if CONFIG_AVFILTER
1310     if (vp->picref)
1311         avfilter_unref_pic(vp->picref);
1312     vp->picref = NULL;
1313
1314     vp->width   = is->out_video_filter->inputs[0]->w;
1315     vp->height  = is->out_video_filter->inputs[0]->h;
1316     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1317 #else
1318     vp->width   = is->video_st->codec->width;
1319     vp->height  = is->video_st->codec->height;
1320     vp->pix_fmt = is->video_st->codec->pix_fmt;
1321 #endif
1322
1323     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1324                                    SDL_YV12_OVERLAY,
1325                                    screen);
1326
1327     SDL_LockMutex(is->pictq_mutex);
1328     vp->allocated = 1;
1329     SDL_CondSignal(is->pictq_cond);
1330     SDL_UnlockMutex(is->pictq_mutex);
1331 }
1332
1333 /**
1334  *
1335  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1336  */
1337 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1338 {
1339     VideoPicture *vp;
1340     int dst_pix_fmt;
1341 #if CONFIG_AVFILTER
1342     AVPicture pict_src;
1343 #endif
1344     /* wait until we have space to put a new picture */
1345     SDL_LockMutex(is->pictq_mutex);
1346
1347     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1348         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1349
1350     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1351            !is->videoq.abort_request) {
1352         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1353     }
1354     SDL_UnlockMutex(is->pictq_mutex);
1355
1356     if (is->videoq.abort_request)
1357         return -1;
1358
1359     vp = &is->pictq[is->pictq_windex];
1360
1361     /* alloc or resize hardware picture buffer */
1362     if (!vp->bmp ||
1363 #if CONFIG_AVFILTER
1364         vp->width  != is->out_video_filter->inputs[0]->w ||
1365         vp->height != is->out_video_filter->inputs[0]->h) {
1366 #else
1367         vp->width != is->video_st->codec->width ||
1368         vp->height != is->video_st->codec->height) {
1369 #endif
1370         SDL_Event event;
1371
1372         vp->allocated = 0;
1373
1374         /* the allocation must be done in the main thread to avoid
1375            locking problems */
1376         event.type = FF_ALLOC_EVENT;
1377         event.user.data1 = is;
1378         SDL_PushEvent(&event);
1379
1380         /* wait until the picture is allocated */
1381         SDL_LockMutex(is->pictq_mutex);
1382         while (!vp->allocated && !is->videoq.abort_request) {
1383             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1384         }
1385         SDL_UnlockMutex(is->pictq_mutex);
1386
1387         if (is->videoq.abort_request)
1388             return -1;
1389     }
1390
1391     /* if the frame is not skipped, then display it */
1392     if (vp->bmp) {
1393         AVPicture pict;
1394 #if CONFIG_AVFILTER
1395         if(vp->picref)
1396             avfilter_unref_pic(vp->picref);
1397         vp->picref = src_frame->opaque;
1398 #endif
1399
1400         /* get a pointer on the bitmap */
1401         SDL_LockYUVOverlay (vp->bmp);
1402
1403         dst_pix_fmt = PIX_FMT_YUV420P;
1404         memset(&pict,0,sizeof(AVPicture));
1405         pict.data[0] = vp->bmp->pixels[0];
1406         pict.data[1] = vp->bmp->pixels[2];
1407         pict.data[2] = vp->bmp->pixels[1];
1408
1409         pict.linesize[0] = vp->bmp->pitches[0];
1410         pict.linesize[1] = vp->bmp->pitches[2];
1411         pict.linesize[2] = vp->bmp->pitches[1];
1412
1413 #if CONFIG_AVFILTER
1414         pict_src.data[0] = src_frame->data[0];
1415         pict_src.data[1] = src_frame->data[1];
1416         pict_src.data[2] = src_frame->data[2];
1417
1418         pict_src.linesize[0] = src_frame->linesize[0];
1419         pict_src.linesize[1] = src_frame->linesize[1];
1420         pict_src.linesize[2] = src_frame->linesize[2];
1421
1422         //FIXME use direct rendering
1423         av_picture_copy(&pict, &pict_src,
1424                         vp->pix_fmt, vp->width, vp->height);
1425 #else
1426         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1427         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1428             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1429             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1430         if (is->img_convert_ctx == NULL) {
1431             fprintf(stderr, "Cannot initialize the conversion context\n");
1432             exit(1);
1433         }
1434         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1435                   0, vp->height, pict.data, pict.linesize);
1436 #endif
1437         /* update the bitmap content */
1438         SDL_UnlockYUVOverlay(vp->bmp);
1439
1440         vp->pts = pts;
1441         vp->pos = pos;
1442
1443         /* now we can update the picture count */
1444         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1445             is->pictq_windex = 0;
1446         SDL_LockMutex(is->pictq_mutex);
1447         vp->target_clock= compute_target_time(vp->pts, is);
1448
1449         is->pictq_size++;
1450         SDL_UnlockMutex(is->pictq_mutex);
1451     }
1452     return 0;
1453 }
1454
1455 /**
1456  * compute the exact PTS for the picture if it is omitted in the stream
1457  * @param pts1 the dts of the pkt / pts of the frame
1458  */
1459 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1460 {
1461     double frame_delay, pts;
1462
1463     pts = pts1;
1464
1465     if (pts != 0) {
1466         /* update video clock with pts, if present */
1467         is->video_clock = pts;
1468     } else {
1469         pts = is->video_clock;
1470     }
1471     /* update video clock for next frame */
1472     frame_delay = av_q2d(is->video_st->codec->time_base);
1473     /* for MPEG2, the frame can be repeated, so we update the
1474        clock accordingly */
1475     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1476     is->video_clock += frame_delay;
1477
1478 #if defined(DEBUG_SYNC) && 0
1479     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1480            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1481 #endif
1482     return queue_picture(is, src_frame, pts, pos);
1483 }
1484
1485 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1486 {
1487     int len1, got_picture, i;
1488
1489         if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1490             return -1;
1491
1492         if(pkt->data == flush_pkt.data){
1493             avcodec_flush_buffers(is->video_st->codec);
1494
1495             SDL_LockMutex(is->pictq_mutex);
1496             //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1497             for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1498                 is->pictq[i].target_clock= 0;
1499             }
1500             while (is->pictq_size && !is->videoq.abort_request) {
1501                 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1502             }
1503             is->video_current_pos= -1;
1504             SDL_UnlockMutex(is->pictq_mutex);
1505
1506             is->last_dts_for_fault_detection=
1507             is->last_pts_for_fault_detection= INT64_MIN;
1508             is->frame_last_pts= AV_NOPTS_VALUE;
1509             is->frame_last_delay = 0;
1510             is->frame_timer = (double)av_gettime() / 1000000.0;
1511             is->skip_frames= 1;
1512             is->skip_frames_index= 0;
1513             return 0;
1514         }
1515
1516         /* NOTE: ipts is the PTS of the _first_ picture beginning in
1517            this packet, if any */
1518         is->video_st->codec->reordered_opaque= pkt->pts;
1519         len1 = avcodec_decode_video2(is->video_st->codec,
1520                                     frame, &got_picture,
1521                                     pkt);
1522
1523         if (got_picture) {
1524             if(pkt->dts != AV_NOPTS_VALUE){
1525                 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1526                 is->last_dts_for_fault_detection= pkt->dts;
1527             }
1528             if(frame->reordered_opaque != AV_NOPTS_VALUE){
1529                 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1530                 is->last_pts_for_fault_detection= frame->reordered_opaque;
1531             }
1532         }
1533
1534         if(   (   decoder_reorder_pts==1
1535                || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1536                || pkt->dts == AV_NOPTS_VALUE)
1537            && frame->reordered_opaque != AV_NOPTS_VALUE)
1538             *pts= frame->reordered_opaque;
1539         else if(pkt->dts != AV_NOPTS_VALUE)
1540             *pts= pkt->dts;
1541         else
1542             *pts= 0;
1543
1544 //            if (len1 < 0)
1545 //                break;
1546     if (got_picture){
1547         is->skip_frames_index += 1;
1548         if(is->skip_frames_index >= is->skip_frames){
1549             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1550             return 1;
1551         }
1552
1553     }
1554     return 0;
1555 }
1556
1557 #if CONFIG_AVFILTER
1558 typedef struct {
1559     VideoState *is;
1560     AVFrame *frame;
1561     int use_dr1;
1562 } FilterPriv;
1563
1564 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1565 {
1566     AVFilterContext *ctx = codec->opaque;
1567     AVFilterPicRef  *ref;
1568     int perms = AV_PERM_WRITE;
1569     int w, h, stride[4];
1570     unsigned edge;
1571
1572     if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1573         if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1574         if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1575         if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1576     }
1577     if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1578
1579     w = codec->width;
1580     h = codec->height;
1581     avcodec_align_dimensions2(codec, &w, &h, stride);
1582     edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1583     w += edge << 1;
1584     h += edge << 1;
1585
1586     if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1587         return -1;
1588
1589     ref->w = codec->width;
1590     ref->h = codec->height;
1591     for(int i = 0; i < 3; i ++) {
1592         unsigned hshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_w;
1593         unsigned vshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_h;
1594
1595         ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1596         pic->data[i]     = ref->data[i];
1597         pic->linesize[i] = ref->linesize[i];
1598     }
1599     pic->opaque = ref;
1600     pic->age    = INT_MAX;
1601     pic->type   = FF_BUFFER_TYPE_USER;
1602     return 0;
1603 }
1604
1605 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1606 {
1607     memset(pic->data, 0, sizeof(pic->data));
1608     avfilter_unref_pic(pic->opaque);
1609 }
1610
1611 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1612 {
1613     FilterPriv *priv = ctx->priv;
1614     AVCodecContext *codec;
1615     if(!opaque) return -1;
1616
1617     priv->is = opaque;
1618     codec    = priv->is->video_st->codec;
1619     codec->opaque = ctx;
1620     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1621         priv->use_dr1 = 1;
1622         codec->get_buffer     = input_get_buffer;
1623         codec->release_buffer = input_release_buffer;
1624     }
1625
1626     priv->frame = avcodec_alloc_frame();
1627
1628     return 0;
1629 }
1630
1631 static void input_uninit(AVFilterContext *ctx)
1632 {
1633     FilterPriv *priv = ctx->priv;
1634     av_free(priv->frame);
1635 }
1636
1637 static int input_request_frame(AVFilterLink *link)
1638 {
1639     FilterPriv *priv = link->src->priv;
1640     AVFilterPicRef *picref;
1641     int64_t pts = 0;
1642     AVPacket pkt;
1643     int ret;
1644
1645     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1646         av_free_packet(&pkt);
1647     if (ret < 0)
1648         return -1;
1649
1650     if(priv->use_dr1) {
1651         picref = avfilter_ref_pic(priv->frame->opaque, ~0);
1652     } else {
1653         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1654         av_picture_copy((AVPicture *)&picref->data, (AVPicture *)priv->frame,
1655                         picref->pic->format, link->w, link->h);
1656     }
1657     av_free_packet(&pkt);
1658
1659     picref->pts = pts;
1660     picref->pos = pkt.pos;
1661     picref->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1662     avfilter_start_frame(link, picref);
1663     avfilter_draw_slice(link, 0, link->h, 1);
1664     avfilter_end_frame(link);
1665
1666     return 0;
1667 }
1668
1669 static int input_query_formats(AVFilterContext *ctx)
1670 {
1671     FilterPriv *priv = ctx->priv;
1672     enum PixelFormat pix_fmts[] = {
1673         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1674     };
1675
1676     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1677     return 0;
1678 }
1679
1680 static int input_config_props(AVFilterLink *link)
1681 {
1682     FilterPriv *priv  = link->src->priv;
1683     AVCodecContext *c = priv->is->video_st->codec;
1684
1685     link->w = c->width;
1686     link->h = c->height;
1687
1688     return 0;
1689 }
1690
1691 static AVFilter input_filter =
1692 {
1693     .name      = "ffplay_input",
1694
1695     .priv_size = sizeof(FilterPriv),
1696
1697     .init      = input_init,
1698     .uninit    = input_uninit,
1699
1700     .query_formats = input_query_formats,
1701
1702     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1703     .outputs   = (AVFilterPad[]) {{ .name = "default",
1704                                     .type = AVMEDIA_TYPE_VIDEO,
1705                                     .request_frame = input_request_frame,
1706                                     .config_props  = input_config_props, },
1707                                   { .name = NULL }},
1708 };
1709
1710 static void output_end_frame(AVFilterLink *link)
1711 {
1712 }
1713
1714 static int output_query_formats(AVFilterContext *ctx)
1715 {
1716     enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1717
1718     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1719     return 0;
1720 }
1721
1722 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1723                                     int64_t *pts, int64_t *pos)
1724 {
1725     AVFilterPicRef *pic;
1726
1727     if(avfilter_request_frame(ctx->inputs[0]))
1728         return -1;
1729     if(!(pic = ctx->inputs[0]->cur_pic))
1730         return -1;
1731     ctx->inputs[0]->cur_pic = NULL;
1732
1733     frame->opaque = pic;
1734     *pts          = pic->pts;
1735     *pos          = pic->pos;
1736
1737     memcpy(frame->data,     pic->data,     sizeof(frame->data));
1738     memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1739
1740     return 1;
1741 }
1742
1743 static AVFilter output_filter =
1744 {
1745     .name      = "ffplay_output",
1746
1747     .query_formats = output_query_formats,
1748
1749     .inputs    = (AVFilterPad[]) {{ .name          = "default",
1750                                     .type          = AVMEDIA_TYPE_VIDEO,
1751                                     .end_frame     = output_end_frame,
1752                                     .min_perms     = AV_PERM_READ, },
1753                                   { .name = NULL }},
1754     .outputs   = (AVFilterPad[]) {{ .name = NULL }},
1755 };
1756 #endif  /* CONFIG_AVFILTER */
1757
1758 static int video_thread(void *arg)
1759 {
1760     VideoState *is = arg;
1761     AVFrame *frame= avcodec_alloc_frame();
1762     int64_t pts_int;
1763     double pts;
1764     int ret;
1765
1766 #if CONFIG_AVFILTER
1767     int64_t pos;
1768     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1769     AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1770     graph->scale_sws_opts = av_strdup("sws_flags=bilinear");
1771
1772     if(!(filt_src = avfilter_open(&input_filter,  "src")))   goto the_end;
1773     if(!(filt_out = avfilter_open(&output_filter, "out")))   goto the_end;
1774
1775     if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
1776     if(avfilter_init_filter(filt_out, NULL, frame))          goto the_end;
1777
1778
1779     if(vfilters) {
1780         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1781         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1782
1783         outputs->name    = av_strdup("in");
1784         outputs->filter  = filt_src;
1785         outputs->pad_idx = 0;
1786         outputs->next    = NULL;
1787
1788         inputs->name    = av_strdup("out");
1789         inputs->filter  = filt_out;
1790         inputs->pad_idx = 0;
1791         inputs->next    = NULL;
1792
1793         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1794             goto the_end;
1795         av_freep(&vfilters);
1796     } else {
1797         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1798     }
1799     avfilter_graph_add_filter(graph, filt_src);
1800     avfilter_graph_add_filter(graph, filt_out);
1801
1802     if(avfilter_graph_check_validity(graph, NULL))           goto the_end;
1803     if(avfilter_graph_config_formats(graph, NULL))           goto the_end;
1804     if(avfilter_graph_config_links(graph, NULL))             goto the_end;
1805
1806     is->out_video_filter = filt_out;
1807 #endif
1808
1809     for(;;) {
1810 #if !CONFIG_AVFILTER
1811         AVPacket pkt;
1812 #endif
1813         while (is->paused && !is->videoq.abort_request)
1814             SDL_Delay(10);
1815 #if CONFIG_AVFILTER
1816         ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1817 #else
1818         ret = get_video_frame(is, frame, &pts_int, &pkt);
1819 #endif
1820
1821         if (ret < 0) goto the_end;
1822
1823         if (!ret)
1824             continue;
1825
1826         pts = pts_int*av_q2d(is->video_st->time_base);
1827
1828 #if CONFIG_AVFILTER
1829         ret = output_picture2(is, frame, pts, pos);
1830 #else
1831         ret = output_picture2(is, frame, pts,  pkt.pos);
1832         av_free_packet(&pkt);
1833 #endif
1834         if (ret < 0)
1835             goto the_end;
1836
1837         if (step)
1838             if (cur_stream)
1839                 stream_pause(cur_stream);
1840     }
1841  the_end:
1842 #if CONFIG_AVFILTER
1843     avfilter_graph_destroy(graph);
1844     av_freep(&graph);
1845 #endif
1846     av_free(frame);
1847     return 0;
1848 }
1849
1850 static int subtitle_thread(void *arg)
1851 {
1852     VideoState *is = arg;
1853     SubPicture *sp;
1854     AVPacket pkt1, *pkt = &pkt1;
1855     int len1, got_subtitle;
1856     double pts;
1857     int i, j;
1858     int r, g, b, y, u, v, a;
1859
1860     for(;;) {
1861         while (is->paused && !is->subtitleq.abort_request) {
1862             SDL_Delay(10);
1863         }
1864         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1865             break;
1866
1867         if(pkt->data == flush_pkt.data){
1868             avcodec_flush_buffers(is->subtitle_st->codec);
1869             continue;
1870         }
1871         SDL_LockMutex(is->subpq_mutex);
1872         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1873                !is->subtitleq.abort_request) {
1874             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1875         }
1876         SDL_UnlockMutex(is->subpq_mutex);
1877
1878         if (is->subtitleq.abort_request)
1879             goto the_end;
1880
1881         sp = &is->subpq[is->subpq_windex];
1882
1883        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1884            this packet, if any */
1885         pts = 0;
1886         if (pkt->pts != AV_NOPTS_VALUE)
1887             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1888
1889         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1890                                     &sp->sub, &got_subtitle,
1891                                     pkt);
1892 //            if (len1 < 0)
1893 //                break;
1894         if (got_subtitle && sp->sub.format == 0) {
1895             sp->pts = pts;
1896
1897             for (i = 0; i < sp->sub.num_rects; i++)
1898             {
1899                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1900                 {
1901                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1902                     y = RGB_TO_Y_CCIR(r, g, b);
1903                     u = RGB_TO_U_CCIR(r, g, b, 0);
1904                     v = RGB_TO_V_CCIR(r, g, b, 0);
1905                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1906                 }
1907             }
1908
1909             /* now we can update the picture count */
1910             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1911                 is->subpq_windex = 0;
1912             SDL_LockMutex(is->subpq_mutex);
1913             is->subpq_size++;
1914             SDL_UnlockMutex(is->subpq_mutex);
1915         }
1916         av_free_packet(pkt);
1917 //        if (step)
1918 //            if (cur_stream)
1919 //                stream_pause(cur_stream);
1920     }
1921  the_end:
1922     return 0;
1923 }
1924
1925 /* copy samples for viewing in editor window */
1926 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1927 {
1928     int size, len, channels;
1929
1930     channels = is->audio_st->codec->channels;
1931
1932     size = samples_size / sizeof(short);
1933     while (size > 0) {
1934         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1935         if (len > size)
1936             len = size;
1937         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1938         samples += len;
1939         is->sample_array_index += len;
1940         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1941             is->sample_array_index = 0;
1942         size -= len;
1943     }
1944 }
1945
1946 /* return the new audio buffer size (samples can be added or deleted
1947    to get better sync if video or external master clock) */
1948 static int synchronize_audio(VideoState *is, short *samples,
1949                              int samples_size1, double pts)
1950 {
1951     int n, samples_size;
1952     double ref_clock;
1953
1954     n = 2 * is->audio_st->codec->channels;
1955     samples_size = samples_size1;
1956
1957     /* if not master, then we try to remove or add samples to correct the clock */
1958     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1959          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1960         double diff, avg_diff;
1961         int wanted_size, min_size, max_size, nb_samples;
1962
1963         ref_clock = get_master_clock(is);
1964         diff = get_audio_clock(is) - ref_clock;
1965
1966         if (diff < AV_NOSYNC_THRESHOLD) {
1967             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1968             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1969                 /* not enough measures to have a correct estimate */
1970                 is->audio_diff_avg_count++;
1971             } else {
1972                 /* estimate the A-V difference */
1973                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1974
1975                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1976                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1977                     nb_samples = samples_size / n;
1978
1979                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1980                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1981                     if (wanted_size < min_size)
1982                         wanted_size = min_size;
1983                     else if (wanted_size > max_size)
1984                         wanted_size = max_size;
1985
1986                     /* add or remove samples to correction the synchro */
1987                     if (wanted_size < samples_size) {
1988                         /* remove samples */
1989                         samples_size = wanted_size;
1990                     } else if (wanted_size > samples_size) {
1991                         uint8_t *samples_end, *q;
1992                         int nb;
1993
1994                         /* add samples */
1995                         nb = (samples_size - wanted_size);
1996                         samples_end = (uint8_t *)samples + samples_size - n;
1997                         q = samples_end + n;
1998                         while (nb > 0) {
1999                             memcpy(q, samples_end, n);
2000                             q += n;
2001                             nb -= n;
2002                         }
2003                         samples_size = wanted_size;
2004                     }
2005                 }
2006 #if 0
2007                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2008                        diff, avg_diff, samples_size - samples_size1,
2009                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2010 #endif
2011             }
2012         } else {
2013             /* too big difference : may be initial PTS errors, so
2014                reset A-V filter */
2015             is->audio_diff_avg_count = 0;
2016             is->audio_diff_cum = 0;
2017         }
2018     }
2019
2020     return samples_size;
2021 }
2022
2023 /* decode one audio frame and returns its uncompressed size */
2024 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2025 {
2026     AVPacket *pkt_temp = &is->audio_pkt_temp;
2027     AVPacket *pkt = &is->audio_pkt;
2028     AVCodecContext *dec= is->audio_st->codec;
2029     int n, len1, data_size;
2030     double pts;
2031
2032     for(;;) {
2033         /* NOTE: the audio packet can contain several frames */
2034         while (pkt_temp->size > 0) {
2035             data_size = sizeof(is->audio_buf1);
2036             len1 = avcodec_decode_audio3(dec,
2037                                         (int16_t *)is->audio_buf1, &data_size,
2038                                         pkt_temp);
2039             if (len1 < 0) {
2040                 /* if error, we skip the frame */
2041                 pkt_temp->size = 0;
2042                 break;
2043             }
2044
2045             pkt_temp->data += len1;
2046             pkt_temp->size -= len1;
2047             if (data_size <= 0)
2048                 continue;
2049
2050             if (dec->sample_fmt != is->audio_src_fmt) {
2051                 if (is->reformat_ctx)
2052                     av_audio_convert_free(is->reformat_ctx);
2053                 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2054                                                          dec->sample_fmt, 1, NULL, 0);
2055                 if (!is->reformat_ctx) {
2056                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2057                         avcodec_get_sample_fmt_name(dec->sample_fmt),
2058                         avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2059                         break;
2060                 }
2061                 is->audio_src_fmt= dec->sample_fmt;
2062             }
2063
2064             if (is->reformat_ctx) {
2065                 const void *ibuf[6]= {is->audio_buf1};
2066                 void *obuf[6]= {is->audio_buf2};
2067                 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2068                 int ostride[6]= {2};
2069                 int len= data_size/istride[0];
2070                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2071                     printf("av_audio_convert() failed\n");
2072                     break;
2073                 }
2074                 is->audio_buf= is->audio_buf2;
2075                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2076                           remove this legacy cruft */
2077                 data_size= len*2;
2078             }else{
2079                 is->audio_buf= is->audio_buf1;
2080             }
2081
2082             /* if no pts, then compute it */
2083             pts = is->audio_clock;
2084             *pts_ptr = pts;
2085             n = 2 * dec->channels;
2086             is->audio_clock += (double)data_size /
2087                 (double)(n * dec->sample_rate);
2088 #if defined(DEBUG_SYNC)
2089             {
2090                 static double last_clock;
2091                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2092                        is->audio_clock - last_clock,
2093                        is->audio_clock, pts);
2094                 last_clock = is->audio_clock;
2095             }
2096 #endif
2097             return data_size;
2098         }
2099
2100         /* free the current packet */
2101         if (pkt->data)
2102             av_free_packet(pkt);
2103
2104         if (is->paused || is->audioq.abort_request) {
2105             return -1;
2106         }
2107
2108         /* read next packet */
2109         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2110             return -1;
2111         if(pkt->data == flush_pkt.data){
2112             avcodec_flush_buffers(dec);
2113             continue;
2114         }
2115
2116         pkt_temp->data = pkt->data;
2117         pkt_temp->size = pkt->size;
2118
2119         /* if update the audio clock with the pts */
2120         if (pkt->pts != AV_NOPTS_VALUE) {
2121             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2122         }
2123     }
2124 }
2125
2126 /* get the current audio output buffer size, in samples. With SDL, we
2127    cannot have a precise information */
2128 static int audio_write_get_buf_size(VideoState *is)
2129 {
2130     return is->audio_buf_size - is->audio_buf_index;
2131 }
2132
2133
2134 /* prepare a new audio buffer */
2135 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2136 {
2137     VideoState *is = opaque;
2138     int audio_size, len1;
2139     double pts;
2140
2141     audio_callback_time = av_gettime();
2142
2143     while (len > 0) {
2144         if (is->audio_buf_index >= is->audio_buf_size) {
2145            audio_size = audio_decode_frame(is, &pts);
2146            if (audio_size < 0) {
2147                 /* if error, just output silence */
2148                is->audio_buf = is->audio_buf1;
2149                is->audio_buf_size = 1024;
2150                memset(is->audio_buf, 0, is->audio_buf_size);
2151            } else {
2152                if (is->show_audio)
2153                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2154                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2155                                               pts);
2156                is->audio_buf_size = audio_size;
2157            }
2158            is->audio_buf_index = 0;
2159         }
2160         len1 = is->audio_buf_size - is->audio_buf_index;
2161         if (len1 > len)
2162             len1 = len;
2163         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2164         len -= len1;
2165         stream += len1;
2166         is->audio_buf_index += len1;
2167     }
2168 }
2169
2170 /* open a given stream. Return 0 if OK */
2171 static int stream_component_open(VideoState *is, int stream_index)
2172 {
2173     AVFormatContext *ic = is->ic;
2174     AVCodecContext *avctx;
2175     AVCodec *codec;
2176     SDL_AudioSpec wanted_spec, spec;
2177
2178     if (stream_index < 0 || stream_index >= ic->nb_streams)
2179         return -1;
2180     avctx = ic->streams[stream_index]->codec;
2181
2182     /* prepare audio output */
2183     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2184         if (avctx->channels > 0) {
2185             avctx->request_channels = FFMIN(2, avctx->channels);
2186         } else {
2187             avctx->request_channels = 2;
2188         }
2189     }
2190
2191     codec = avcodec_find_decoder(avctx->codec_id);
2192     avctx->debug_mv = debug_mv;
2193     avctx->debug = debug;
2194     avctx->workaround_bugs = workaround_bugs;
2195     avctx->lowres = lowres;
2196     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2197     avctx->idct_algo= idct;
2198     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2199     avctx->skip_frame= skip_frame;
2200     avctx->skip_idct= skip_idct;
2201     avctx->skip_loop_filter= skip_loop_filter;
2202     avctx->error_recognition= error_recognition;
2203     avctx->error_concealment= error_concealment;
2204     avcodec_thread_init(avctx, thread_count);
2205
2206     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2207
2208     if (!codec ||
2209         avcodec_open(avctx, codec) < 0)
2210         return -1;
2211
2212     /* prepare audio output */
2213     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2214         wanted_spec.freq = avctx->sample_rate;
2215         wanted_spec.format = AUDIO_S16SYS;
2216         wanted_spec.channels = avctx->channels;
2217         wanted_spec.silence = 0;
2218         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2219         wanted_spec.callback = sdl_audio_callback;
2220         wanted_spec.userdata = is;
2221         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2222             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2223             return -1;
2224         }
2225         is->audio_hw_buf_size = spec.size;
2226         is->audio_src_fmt= SAMPLE_FMT_S16;
2227     }
2228
2229     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2230     switch(avctx->codec_type) {
2231     case AVMEDIA_TYPE_AUDIO:
2232         is->audio_stream = stream_index;
2233         is->audio_st = ic->streams[stream_index];
2234         is->audio_buf_size = 0;
2235         is->audio_buf_index = 0;
2236
2237         /* init averaging filter */
2238         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2239         is->audio_diff_avg_count = 0;
2240         /* since we do not have a precise anough audio fifo fullness,
2241            we correct audio sync only if larger than this threshold */
2242         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2243
2244         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2245         packet_queue_init(&is->audioq);
2246         SDL_PauseAudio(0);
2247         break;
2248     case AVMEDIA_TYPE_VIDEO:
2249         is->video_stream = stream_index;
2250         is->video_st = ic->streams[stream_index];
2251
2252 //        is->video_current_pts_time = av_gettime();
2253
2254         packet_queue_init(&is->videoq);
2255         is->video_tid = SDL_CreateThread(video_thread, is);
2256         break;
2257     case AVMEDIA_TYPE_SUBTITLE:
2258         is->subtitle_stream = stream_index;
2259         is->subtitle_st = ic->streams[stream_index];
2260         packet_queue_init(&is->subtitleq);
2261
2262         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2263         break;
2264     default:
2265         break;
2266     }
2267     return 0;
2268 }
2269
2270 static void stream_component_close(VideoState *is, int stream_index)
2271 {
2272     AVFormatContext *ic = is->ic;
2273     AVCodecContext *avctx;
2274
2275     if (stream_index < 0 || stream_index >= ic->nb_streams)
2276         return;
2277     avctx = ic->streams[stream_index]->codec;
2278
2279     switch(avctx->codec_type) {
2280     case AVMEDIA_TYPE_AUDIO:
2281         packet_queue_abort(&is->audioq);
2282
2283         SDL_CloseAudio();
2284
2285         packet_queue_end(&is->audioq);
2286         if (is->reformat_ctx)
2287             av_audio_convert_free(is->reformat_ctx);
2288         is->reformat_ctx = NULL;
2289         break;
2290     case AVMEDIA_TYPE_VIDEO:
2291         packet_queue_abort(&is->videoq);
2292
2293         /* note: we also signal this mutex to make sure we deblock the
2294            video thread in all cases */
2295         SDL_LockMutex(is->pictq_mutex);
2296         SDL_CondSignal(is->pictq_cond);
2297         SDL_UnlockMutex(is->pictq_mutex);
2298
2299         SDL_WaitThread(is->video_tid, NULL);
2300
2301         packet_queue_end(&is->videoq);
2302         break;
2303     case AVMEDIA_TYPE_SUBTITLE:
2304         packet_queue_abort(&is->subtitleq);
2305
2306         /* note: we also signal this mutex to make sure we deblock the
2307            video thread in all cases */
2308         SDL_LockMutex(is->subpq_mutex);
2309         is->subtitle_stream_changed = 1;
2310
2311         SDL_CondSignal(is->subpq_cond);
2312         SDL_UnlockMutex(is->subpq_mutex);
2313
2314         SDL_WaitThread(is->subtitle_tid, NULL);
2315
2316         packet_queue_end(&is->subtitleq);
2317         break;
2318     default:
2319         break;
2320     }
2321
2322     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2323     avcodec_close(avctx);
2324     switch(avctx->codec_type) {
2325     case AVMEDIA_TYPE_AUDIO:
2326         is->audio_st = NULL;
2327         is->audio_stream = -1;
2328         break;
2329     case AVMEDIA_TYPE_VIDEO:
2330         is->video_st = NULL;
2331         is->video_stream = -1;
2332         break;
2333     case AVMEDIA_TYPE_SUBTITLE:
2334         is->subtitle_st = NULL;
2335         is->subtitle_stream = -1;
2336         break;
2337     default:
2338         break;
2339     }
2340 }
2341
2342 /* since we have only one decoding thread, we can use a global
2343    variable instead of a thread local variable */
2344 static VideoState *global_video_state;
2345
2346 static int decode_interrupt_cb(void)
2347 {
2348     return (global_video_state && global_video_state->abort_request);
2349 }
2350
2351 /* this thread gets the stream from the disk or the network */
2352 static int decode_thread(void *arg)
2353 {
2354     VideoState *is = arg;
2355     AVFormatContext *ic;
2356     int err, i, ret;
2357     int st_index[AVMEDIA_TYPE_NB];
2358     int st_count[AVMEDIA_TYPE_NB]={0};
2359     int st_best_packet_count[AVMEDIA_TYPE_NB];
2360     AVPacket pkt1, *pkt = &pkt1;
2361     AVFormatParameters params, *ap = &params;
2362     int eof=0;
2363
2364     ic = avformat_alloc_context();
2365
2366     memset(st_index, -1, sizeof(st_index));
2367     memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2368     is->video_stream = -1;
2369     is->audio_stream = -1;
2370     is->subtitle_stream = -1;
2371
2372     global_video_state = is;
2373     url_set_interrupt_cb(decode_interrupt_cb);
2374
2375     memset(ap, 0, sizeof(*ap));
2376
2377     ap->prealloced_context = 1;
2378     ap->width = frame_width;
2379     ap->height= frame_height;
2380     ap->time_base= (AVRational){1, 25};
2381     ap->pix_fmt = frame_pix_fmt;
2382
2383     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2384
2385     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2386     if (err < 0) {
2387         print_error(is->filename, err);
2388         ret = -1;
2389         goto fail;
2390     }
2391     is->ic = ic;
2392
2393     if(genpts)
2394         ic->flags |= AVFMT_FLAG_GENPTS;
2395
2396     err = av_find_stream_info(ic);
2397     if (err < 0) {
2398         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2399         ret = -1;
2400         goto fail;
2401     }
2402     if(ic->pb)
2403         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2404
2405     if(seek_by_bytes<0)
2406         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2407
2408     /* if seeking requested, we execute it */
2409     if (start_time != AV_NOPTS_VALUE) {
2410         int64_t timestamp;
2411
2412         timestamp = start_time;
2413         /* add the stream start time */
2414         if (ic->start_time != AV_NOPTS_VALUE)
2415             timestamp += ic->start_time;
2416         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2417         if (ret < 0) {
2418             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2419                     is->filename, (double)timestamp / AV_TIME_BASE);
2420         }
2421     }
2422
2423     for(i = 0; i < ic->nb_streams; i++) {
2424         AVStream *st= ic->streams[i];
2425         AVCodecContext *avctx = st->codec;
2426         ic->streams[i]->discard = AVDISCARD_ALL;
2427         if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2428             continue;
2429         if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2430             continue;
2431
2432         if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2433             continue;
2434         st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2435
2436         switch(avctx->codec_type) {
2437         case AVMEDIA_TYPE_AUDIO:
2438             if (!audio_disable)
2439                 st_index[AVMEDIA_TYPE_AUDIO] = i;
2440             break;
2441         case AVMEDIA_TYPE_VIDEO:
2442         case AVMEDIA_TYPE_SUBTITLE:
2443             if (!video_disable)
2444                 st_index[avctx->codec_type] = i;
2445             break;
2446         default:
2447             break;
2448         }
2449     }
2450     if (show_status) {
2451         dump_format(ic, 0, is->filename, 0);
2452     }
2453
2454     /* open the streams */
2455     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2456         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2457     }
2458
2459     ret=-1;
2460     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2461         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2462     }
2463     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2464     if(ret<0) {
2465         if (!display_disable)
2466             is->show_audio = 2;
2467     }
2468
2469     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2470         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2471     }
2472
2473     if (is->video_stream < 0 && is->audio_stream < 0) {
2474         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2475         ret = -1;
2476         goto fail;
2477     }
2478
2479     for(;;) {
2480         if (is->abort_request)
2481             break;
2482         if (is->paused != is->last_paused) {
2483             is->last_paused = is->paused;
2484             if (is->paused)
2485                 is->read_pause_return= av_read_pause(ic);
2486             else
2487                 av_read_play(ic);
2488         }
2489 #if CONFIG_RTSP_DEMUXER
2490         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2491             /* wait 10 ms to avoid trying to get another packet */
2492             /* XXX: horrible */
2493             SDL_Delay(10);
2494             continue;
2495         }
2496 #endif
2497         if (is->seek_req) {
2498             int64_t seek_target= is->seek_pos;
2499             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2500             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2501 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2502 //      of the seek_pos/seek_rel variables
2503
2504             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2505             if (ret < 0) {
2506                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2507             }else{
2508                 if (is->audio_stream >= 0) {
2509                     packet_queue_flush(&is->audioq);
2510                     packet_queue_put(&is->audioq, &flush_pkt);
2511                 }
2512                 if (is->subtitle_stream >= 0) {
2513                     packet_queue_flush(&is->subtitleq);
2514                     packet_queue_put(&is->subtitleq, &flush_pkt);
2515                 }
2516                 if (is->video_stream >= 0) {
2517                     packet_queue_flush(&is->videoq);
2518                     packet_queue_put(&is->videoq, &flush_pkt);
2519                 }
2520             }
2521             is->seek_req = 0;
2522             eof= 0;
2523         }
2524
2525         /* if the queue are full, no need to read more */
2526         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2527             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2528                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2529                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2530             /* wait 10 ms */
2531             SDL_Delay(10);
2532             continue;
2533         }
2534         if(url_feof(ic->pb) || eof) {
2535             if(is->video_stream >= 0){
2536                 av_init_packet(pkt);
2537                 pkt->data=NULL;
2538                 pkt->size=0;
2539                 pkt->stream_index= is->video_stream;
2540                 packet_queue_put(&is->videoq, pkt);
2541             }
2542             SDL_Delay(10);
2543             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2544                 if(loop!=1 && (!loop || --loop)){
2545                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2546                 }else if(autoexit){
2547                     ret=AVERROR_EOF;
2548                     goto fail;
2549                 }
2550             }
2551             continue;
2552         }
2553         ret = av_read_frame(ic, pkt);
2554         if (ret < 0) {
2555             if (ret == AVERROR_EOF)
2556                 eof=1;
2557             if (url_ferror(ic->pb))
2558                 break;
2559             SDL_Delay(100); /* wait for user event */
2560             continue;
2561         }
2562         if (pkt->stream_index == is->audio_stream) {
2563             packet_queue_put(&is->audioq, pkt);
2564         } else if (pkt->stream_index == is->video_stream) {
2565             packet_queue_put(&is->videoq, pkt);
2566         } else if (pkt->stream_index == is->subtitle_stream) {
2567             packet_queue_put(&is->subtitleq, pkt);
2568         } else {
2569             av_free_packet(pkt);
2570         }
2571     }
2572     /* wait until the end */
2573     while (!is->abort_request) {
2574         SDL_Delay(100);
2575     }
2576
2577     ret = 0;
2578  fail:
2579     /* disable interrupting */
2580     global_video_state = NULL;
2581
2582     /* close each stream */
2583     if (is->audio_stream >= 0)
2584         stream_component_close(is, is->audio_stream);
2585     if (is->video_stream >= 0)
2586         stream_component_close(is, is->video_stream);
2587     if (is->subtitle_stream >= 0)
2588         stream_component_close(is, is->subtitle_stream);
2589     if (is->ic) {
2590         av_close_input_file(is->ic);
2591         is->ic = NULL; /* safety */
2592     }
2593     url_set_interrupt_cb(NULL);
2594
2595     if (ret != 0) {
2596         SDL_Event event;
2597
2598         event.type = FF_QUIT_EVENT;
2599         event.user.data1 = is;
2600         SDL_PushEvent(&event);
2601     }
2602     return 0;
2603 }
2604
2605 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2606 {
2607     VideoState *is;
2608
2609     is = av_mallocz(sizeof(VideoState));
2610     if (!is)
2611         return NULL;
2612     av_strlcpy(is->filename, filename, sizeof(is->filename));
2613     is->iformat = iformat;
2614     is->ytop = 0;
2615     is->xleft = 0;
2616
2617     /* start video display */
2618     is->pictq_mutex = SDL_CreateMutex();
2619     is->pictq_cond = SDL_CreateCond();
2620
2621     is->subpq_mutex = SDL_CreateMutex();
2622     is->subpq_cond = SDL_CreateCond();
2623
2624     is->av_sync_type = av_sync_type;
2625     is->parse_tid = SDL_CreateThread(decode_thread, is);
2626     if (!is->parse_tid) {
2627         av_free(is);
2628         return NULL;
2629     }
2630     return is;
2631 }
2632
2633 static void stream_close(VideoState *is)
2634 {
2635     VideoPicture *vp;
2636     int i;
2637     /* XXX: use a special url_shutdown call to abort parse cleanly */
2638     is->abort_request = 1;
2639     SDL_WaitThread(is->parse_tid, NULL);
2640     SDL_WaitThread(is->refresh_tid, NULL);
2641
2642     /* free all pictures */
2643     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2644         vp = &is->pictq[i];
2645 #if CONFIG_AVFILTER
2646         if (vp->picref) {
2647             avfilter_unref_pic(vp->picref);
2648             vp->picref = NULL;
2649         }
2650 #endif
2651         if (vp->bmp) {
2652             SDL_FreeYUVOverlay(vp->bmp);
2653             vp->bmp = NULL;
2654         }
2655     }
2656     SDL_DestroyMutex(is->pictq_mutex);
2657     SDL_DestroyCond(is->pictq_cond);
2658     SDL_DestroyMutex(is->subpq_mutex);
2659     SDL_DestroyCond(is->subpq_cond);
2660 #if !CONFIG_AVFILTER
2661     if (is->img_convert_ctx)
2662         sws_freeContext(is->img_convert_ctx);
2663 #endif
2664     av_free(is);
2665 }
2666
2667 static void stream_cycle_channel(VideoState *is, int codec_type)
2668 {
2669     AVFormatContext *ic = is->ic;
2670     int start_index, stream_index;
2671     AVStream *st;
2672
2673     if (codec_type == AVMEDIA_TYPE_VIDEO)
2674         start_index = is->video_stream;
2675     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2676         start_index = is->audio_stream;
2677     else
2678         start_index = is->subtitle_stream;
2679     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2680         return;
2681     stream_index = start_index;
2682     for(;;) {
2683         if (++stream_index >= is->ic->nb_streams)
2684         {
2685             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2686             {
2687                 stream_index = -1;
2688                 goto the_end;
2689             } else
2690                 stream_index = 0;
2691         }
2692         if (stream_index == start_index)
2693             return;
2694         st = ic->streams[stream_index];
2695         if (st->codec->codec_type == codec_type) {
2696             /* check that parameters are OK */
2697             switch(codec_type) {
2698             case AVMEDIA_TYPE_AUDIO:
2699                 if (st->codec->sample_rate != 0 &&
2700                     st->codec->channels != 0)
2701                     goto the_end;
2702                 break;
2703             case AVMEDIA_TYPE_VIDEO:
2704             case AVMEDIA_TYPE_SUBTITLE:
2705                 goto the_end;
2706             default:
2707                 break;
2708             }
2709         }
2710     }
2711  the_end:
2712     stream_component_close(is, start_index);
2713     stream_component_open(is, stream_index);
2714 }
2715
2716
2717 static void toggle_full_screen(void)
2718 {
2719     is_full_screen = !is_full_screen;
2720     if (!fs_screen_width) {
2721         /* use default SDL method */
2722 //        SDL_WM_ToggleFullScreen(screen);
2723     }
2724     video_open(cur_stream);
2725 }
2726
2727 static void toggle_pause(void)
2728 {
2729     if (cur_stream)
2730         stream_pause(cur_stream);
2731     step = 0;
2732 }
2733
2734 static void step_to_next_frame(void)
2735 {
2736     if (cur_stream) {
2737         /* if the stream is paused unpause it, then step */
2738         if (cur_stream->paused)
2739             stream_pause(cur_stream);
2740     }
2741     step = 1;
2742 }
2743
2744 static void do_exit(void)
2745 {
2746     int i;
2747     if (cur_stream) {
2748         stream_close(cur_stream);
2749         cur_stream = NULL;
2750     }
2751     for (i = 0; i < AVMEDIA_TYPE_NB; i++)
2752         av_free(avcodec_opts[i]);
2753     av_free(avformat_opts);
2754     av_free(sws_opts);
2755 #if CONFIG_AVFILTER
2756     avfilter_uninit();
2757 #endif
2758     if (show_status)
2759         printf("\n");
2760     SDL_Quit();
2761     exit(0);
2762 }
2763
2764 static void toggle_audio_display(void)
2765 {
2766     if (cur_stream) {
2767         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2768         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2769         fill_rectangle(screen,
2770                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2771                     bgcolor);
2772         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2773     }
2774 }
2775
2776 /* handle an event sent by the GUI */
2777 static void event_loop(void)
2778 {
2779     SDL_Event event;
2780     double incr, pos, frac;
2781
2782     for(;;) {
2783         double x;
2784         SDL_WaitEvent(&event);
2785         switch(event.type) {
2786         case SDL_KEYDOWN:
2787             switch(event.key.keysym.sym) {
2788             case SDLK_ESCAPE:
2789             case SDLK_q:
2790                 do_exit();
2791                 break;
2792             case SDLK_f:
2793                 toggle_full_screen();
2794                 break;
2795             case SDLK_p:
2796             case SDLK_SPACE:
2797                 toggle_pause();
2798                 break;
2799             case SDLK_s: //S: Step to next frame
2800                 step_to_next_frame();
2801                 break;
2802             case SDLK_a:
2803                 if (cur_stream)
2804                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2805                 break;
2806             case SDLK_v:
2807                 if (cur_stream)
2808                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2809                 break;
2810             case SDLK_t:
2811                 if (cur_stream)
2812                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2813                 break;
2814             case SDLK_w:
2815                 toggle_audio_display();
2816                 break;
2817             case SDLK_LEFT:
2818                 incr = -10.0;
2819                 goto do_seek;
2820             case SDLK_RIGHT:
2821                 incr = 10.0;
2822                 goto do_seek;
2823             case SDLK_UP:
2824                 incr = 60.0;
2825                 goto do_seek;
2826             case SDLK_DOWN:
2827                 incr = -60.0;
2828             do_seek:
2829                 if (cur_stream) {
2830                     if (seek_by_bytes) {
2831                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2832                             pos= cur_stream->video_current_pos;
2833                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2834                             pos= cur_stream->audio_pkt.pos;
2835                         }else
2836                             pos = url_ftell(cur_stream->ic->pb);
2837                         if (cur_stream->ic->bit_rate)
2838                             incr *= cur_stream->ic->bit_rate / 8.0;
2839                         else
2840                             incr *= 180000.0;
2841                         pos += incr;
2842                         stream_seek(cur_stream, pos, incr, 1);
2843                     } else {
2844                         pos = get_master_clock(cur_stream);
2845                         pos += incr;
2846                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2847                     }
2848                 }
2849                 break;
2850             default:
2851                 break;
2852             }
2853             break;
2854         case SDL_MOUSEBUTTONDOWN:
2855         case SDL_MOUSEMOTION:
2856             if(event.type ==SDL_MOUSEBUTTONDOWN){
2857                 x= event.button.x;
2858             }else{
2859                 if(event.motion.state != SDL_PRESSED)
2860                     break;
2861                 x= event.motion.x;
2862             }
2863             if (cur_stream) {
2864                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2865                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2866                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2867                 }else{
2868                     int64_t ts;
2869                     int ns, hh, mm, ss;
2870                     int tns, thh, tmm, tss;
2871                     tns = cur_stream->ic->duration/1000000LL;
2872                     thh = tns/3600;
2873                     tmm = (tns%3600)/60;
2874                     tss = (tns%60);
2875                     frac = x/cur_stream->width;
2876                     ns = frac*tns;
2877                     hh = ns/3600;
2878                     mm = (ns%3600)/60;
2879                     ss = (ns%60);
2880                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2881                             hh, mm, ss, thh, tmm, tss);
2882                     ts = frac*cur_stream->ic->duration;
2883                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2884                         ts += cur_stream->ic->start_time;
2885                     stream_seek(cur_stream, ts, 0, 0);
2886                 }
2887             }
2888             break;
2889         case SDL_VIDEORESIZE:
2890             if (cur_stream) {
2891                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2892                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2893                 screen_width = cur_stream->width = event.resize.w;
2894                 screen_height= cur_stream->height= event.resize.h;
2895             }
2896             break;
2897         case SDL_QUIT:
2898         case FF_QUIT_EVENT:
2899             do_exit();
2900             break;
2901         case FF_ALLOC_EVENT:
2902             video_open(event.user.data1);
2903             alloc_picture(event.user.data1);
2904             break;
2905         case FF_REFRESH_EVENT:
2906             video_refresh_timer(event.user.data1);
2907             cur_stream->refresh=0;
2908             break;
2909         default:
2910             break;
2911         }
2912     }
2913 }
2914
2915 static void opt_frame_size(const char *arg)
2916 {
2917     if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2918         fprintf(stderr, "Incorrect frame size\n");
2919         exit(1);
2920     }
2921     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2922         fprintf(stderr, "Frame size must be a multiple of 2\n");
2923         exit(1);
2924     }
2925 }
2926
2927 static int opt_width(const char *opt, const char *arg)
2928 {
2929     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2930     return 0;
2931 }
2932
2933 static int opt_height(const char *opt, const char *arg)
2934 {
2935     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2936     return 0;
2937 }
2938
2939 static void opt_format(const char *arg)
2940 {
2941     file_iformat = av_find_input_format(arg);
2942     if (!file_iformat) {
2943         fprintf(stderr, "Unknown input format: %s\n", arg);
2944         exit(1);
2945     }
2946 }
2947
2948 static void opt_frame_pix_fmt(const char *arg)
2949 {
2950     frame_pix_fmt = av_get_pix_fmt(arg);
2951 }
2952
2953 static int opt_sync(const char *opt, const char *arg)
2954 {
2955     if (!strcmp(arg, "audio"))
2956         av_sync_type = AV_SYNC_AUDIO_MASTER;
2957     else if (!strcmp(arg, "video"))
2958         av_sync_type = AV_SYNC_VIDEO_MASTER;
2959     else if (!strcmp(arg, "ext"))
2960         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2961     else {
2962         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2963         exit(1);
2964     }
2965     return 0;
2966 }
2967
2968 static int opt_seek(const char *opt, const char *arg)
2969 {
2970     start_time = parse_time_or_die(opt, arg, 1);
2971     return 0;
2972 }
2973
2974 static int opt_debug(const char *opt, const char *arg)
2975 {
2976     av_log_set_level(99);
2977     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2978     return 0;
2979 }
2980
2981 static int opt_vismv(const char *opt, const char *arg)
2982 {
2983     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2984     return 0;
2985 }
2986
2987 static int opt_thread_count(const char *opt, const char *arg)
2988 {
2989     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2990 #if !HAVE_THREADS
2991     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2992 #endif
2993     return 0;
2994 }
2995
2996 static const OptionDef options[] = {
2997 #include "cmdutils_common_opts.h"
2998     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2999     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3000     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3001     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3002     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3003     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3004     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3005     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3006     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3007     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3008     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3009     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3010     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3011     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3012     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3013     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3014     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3015     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3016     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3017     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3018     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3019     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3020     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3021     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3022     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3023     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3024     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3025     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3026     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3027     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3028     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3029     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3030     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3031     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3032 #if CONFIG_AVFILTER
3033     { "vfilters", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3034 #endif
3035     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3036     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3037     { NULL, },
3038 };
3039
3040 static void show_usage(void)
3041 {
3042     printf("Simple media player\n");
3043     printf("usage: ffplay [options] input_file\n");
3044     printf("\n");
3045 }
3046
3047 static void show_help(void)
3048 {
3049     show_usage();
3050     show_help_options(options, "Main options:\n",
3051                       OPT_EXPERT, 0);
3052     show_help_options(options, "\nAdvanced options:\n",
3053                       OPT_EXPERT, OPT_EXPERT);
3054     printf("\nWhile playing:\n"
3055            "q, ESC              quit\n"
3056            "f                   toggle full screen\n"
3057            "p, SPC              pause\n"
3058            "a                   cycle audio channel\n"
3059            "v                   cycle video channel\n"
3060            "t                   cycle subtitle channel\n"
3061            "w                   show audio waves\n"
3062            "left/right          seek backward/forward 10 seconds\n"
3063            "down/up             seek backward/forward 1 minute\n"
3064            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3065            );
3066 }
3067
3068 static void opt_input_file(const char *filename)
3069 {
3070     if (input_filename) {
3071         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3072                 filename, input_filename);
3073         exit(1);
3074     }
3075     if (!strcmp(filename, "-"))
3076         filename = "pipe:";
3077     input_filename = filename;
3078 }
3079
3080 /* Called from the main */
3081 int main(int argc, char **argv)
3082 {
3083     int flags, i;
3084
3085     /* register all codecs, demux and protocols */
3086     avcodec_register_all();
3087     avdevice_register_all();
3088 #if CONFIG_AVFILTER
3089     avfilter_register_all();
3090 #endif
3091     av_register_all();
3092
3093     for(i=0; i<AVMEDIA_TYPE_NB; i++){
3094         avcodec_opts[i]= avcodec_alloc_context2(i);
3095     }
3096     avformat_opts = avformat_alloc_context();
3097 #if !CONFIG_AVFILTER
3098     sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3099 #endif
3100
3101     show_banner();
3102
3103     parse_options(argc, argv, options, opt_input_file);
3104
3105     if (!input_filename) {
3106         show_usage();
3107         fprintf(stderr, "An input file must be specified\n");
3108         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3109         exit(1);
3110     }
3111
3112     if (display_disable) {
3113         video_disable = 1;
3114     }
3115     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3116 #if !defined(__MINGW32__) && !defined(__APPLE__)
3117     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3118 #endif
3119     if (SDL_Init (flags)) {
3120         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3121         exit(1);
3122     }
3123
3124     if (!display_disable) {
3125 #if HAVE_SDL_VIDEO_SIZE
3126         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3127         fs_screen_width = vi->current_w;
3128         fs_screen_height = vi->current_h;
3129 #endif
3130     }
3131
3132     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3133     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3134     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3135
3136     av_init_packet(&flush_pkt);
3137     flush_pkt.data= "FLUSH";
3138
3139     cur_stream = stream_open(input_filename, file_iformat);
3140
3141     event_loop();
3142
3143     /* never returns */
3144
3145     return 0;
3146 }