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1
/*
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 * FFplay : Simple Media Player based on the FFmpeg libraries
3
 * Copyright (c) 2003 Fabrice Bellard
4
 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
21

    
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#define _XOPEN_SOURCE 600
23

    
24
#include "config.h"
25
#include <inttypes.h>
26
#include <math.h>
27
#include <limits.h>
28
#include "libavutil/avstring.h"
29
#include "libavutil/colorspace.h"
30
#include "libavutil/pixdesc.h"
31
#include "libavcore/imgutils.h"
32
#include "libavcore/parseutils.h"
33
#include "libavcore/samplefmt.h"
34
#include "libavformat/avformat.h"
35
#include "libavdevice/avdevice.h"
36
#include "libswscale/swscale.h"
37
#include "libavcodec/audioconvert.h"
38
#include "libavcodec/opt.h"
39
#include "libavcodec/avfft.h"
40

    
41
#if CONFIG_AVFILTER
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# include "libavfilter/avfilter.h"
43
# include "libavfilter/avfiltergraph.h"
44
#endif
45

    
46
#include "cmdutils.h"
47

    
48
#include <SDL.h>
49
#include <SDL_thread.h>
50

    
51
#ifdef __MINGW32__
52
#undef main /* We don't want SDL to override our main() */
53
#endif
54

    
55
#include <unistd.h>
56
#include <assert.h>
57

    
58
const char program_name[] = "FFplay";
59
const int program_birth_year = 2003;
60

    
61
//#define DEBUG
62
//#define DEBUG_SYNC
63

    
64
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
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#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66
#define MIN_FRAMES 5
67

    
68
/* SDL audio buffer size, in samples. Should be small to have precise
69
   A/V sync as SDL does not have hardware buffer fullness info. */
70
#define SDL_AUDIO_BUFFER_SIZE 1024
71

    
72
/* no AV sync correction is done if below the AV sync threshold */
73
#define AV_SYNC_THRESHOLD 0.01
74
/* no AV correction is done if too big error */
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#define AV_NOSYNC_THRESHOLD 10.0
76

    
77
#define FRAME_SKIP_FACTOR 0.05
78

    
79
/* maximum audio speed change to get correct sync */
80
#define SAMPLE_CORRECTION_PERCENT_MAX 10
81

    
82
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83
#define AUDIO_DIFF_AVG_NB   20
84

    
85
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86
#define SAMPLE_ARRAY_SIZE (2*65536)
87

    
88
static int sws_flags = SWS_BICUBIC;
89

    
90
typedef struct PacketQueue {
91
    AVPacketList *first_pkt, *last_pkt;
92
    int nb_packets;
93
    int size;
94
    int abort_request;
95
    SDL_mutex *mutex;
96
    SDL_cond *cond;
97
} PacketQueue;
98

    
99
#define VIDEO_PICTURE_QUEUE_SIZE 2
100
#define SUBPICTURE_QUEUE_SIZE 4
101

    
102
typedef struct VideoPicture {
103
    double pts;                                  ///<presentation time stamp for this picture
104
    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
105
    int64_t pos;                                 ///<byte position in file
106
    SDL_Overlay *bmp;
107
    int width, height; /* source height & width */
108
    int allocated;
109
    enum PixelFormat pix_fmt;
110

    
111
#if CONFIG_AVFILTER
112
    AVFilterBufferRef *picref;
113
#endif
114
} VideoPicture;
115

    
116
typedef struct SubPicture {
117
    double pts; /* presentation time stamp for this picture */
118
    AVSubtitle sub;
119
} SubPicture;
120

    
121
enum {
122
    AV_SYNC_AUDIO_MASTER, /* default choice */
123
    AV_SYNC_VIDEO_MASTER,
124
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125
};
126

    
127
typedef struct VideoState {
128
    SDL_Thread *parse_tid;
129
    SDL_Thread *video_tid;
130
    SDL_Thread *refresh_tid;
131
    AVInputFormat *iformat;
132
    int no_background;
133
    int abort_request;
134
    int paused;
135
    int last_paused;
136
    int seek_req;
137
    int seek_flags;
138
    int64_t seek_pos;
139
    int64_t seek_rel;
140
    int read_pause_return;
141
    AVFormatContext *ic;
142
    int dtg_active_format;
143

    
144
    int audio_stream;
145

    
146
    int av_sync_type;
147
    double external_clock; /* external clock base */
148
    int64_t external_clock_time;
149

    
150
    double audio_clock;
151
    double audio_diff_cum; /* used for AV difference average computation */
152
    double audio_diff_avg_coef;
153
    double audio_diff_threshold;
154
    int audio_diff_avg_count;
155
    AVStream *audio_st;
156
    PacketQueue audioq;
157
    int audio_hw_buf_size;
158
    /* samples output by the codec. we reserve more space for avsync
159
       compensation */
160
    DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161
    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162
    uint8_t *audio_buf;
163
    unsigned int audio_buf_size; /* in bytes */
164
    int audio_buf_index; /* in bytes */
165
    AVPacket audio_pkt_temp;
166
    AVPacket audio_pkt;
167
    enum AVSampleFormat audio_src_fmt;
168
    AVAudioConvert *reformat_ctx;
169

    
170
    int show_audio; /* if true, display audio samples */
171
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
172
    int sample_array_index;
173
    int last_i_start;
174
    RDFTContext *rdft;
175
    int rdft_bits;
176
    FFTSample *rdft_data;
177
    int xpos;
178

    
179
    SDL_Thread *subtitle_tid;
180
    int subtitle_stream;
181
    int subtitle_stream_changed;
182
    AVStream *subtitle_st;
183
    PacketQueue subtitleq;
184
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185
    int subpq_size, subpq_rindex, subpq_windex;
186
    SDL_mutex *subpq_mutex;
187
    SDL_cond *subpq_cond;
188

    
189
    double frame_timer;
190
    double frame_last_pts;
191
    double frame_last_delay;
192
    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
193
    int video_stream;
194
    AVStream *video_st;
195
    PacketQueue videoq;
196
    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
197
    double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198
    int64_t video_current_pos;                   ///<current displayed file pos
199
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200
    int pictq_size, pictq_rindex, pictq_windex;
201
    SDL_mutex *pictq_mutex;
202
    SDL_cond *pictq_cond;
203
#if !CONFIG_AVFILTER
204
    struct SwsContext *img_convert_ctx;
205
#endif
206

    
207
    //    QETimer *video_timer;
208
    char filename[1024];
209
    int width, height, xleft, ytop;
210

    
211
    PtsCorrectionContext pts_ctx;
212

    
213
#if CONFIG_AVFILTER
214
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
215
#endif
216

    
217
    float skip_frames;
218
    float skip_frames_index;
219
    int refresh;
220
} VideoState;
221

    
222
static void show_help(void);
223
static int audio_write_get_buf_size(VideoState *is);
224

    
225
/* options specified by the user */
226
static AVInputFormat *file_iformat;
227
static const char *input_filename;
228
static const char *window_title;
229
static int fs_screen_width;
230
static int fs_screen_height;
231
static int screen_width = 0;
232
static int screen_height = 0;
233
static int frame_width = 0;
234
static int frame_height = 0;
235
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
236
static int audio_disable;
237
static int video_disable;
238
static int wanted_stream[AVMEDIA_TYPE_NB]={
239
    [AVMEDIA_TYPE_AUDIO]=-1,
240
    [AVMEDIA_TYPE_VIDEO]=-1,
241
    [AVMEDIA_TYPE_SUBTITLE]=-1,
242
};
243
static int seek_by_bytes=-1;
244
static int display_disable;
245
static int show_status = 1;
246
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
247
static int64_t start_time = AV_NOPTS_VALUE;
248
static int64_t duration = AV_NOPTS_VALUE;
249
static int debug = 0;
250
static int debug_mv = 0;
251
static int step = 0;
252
static int thread_count = 1;
253
static int workaround_bugs = 1;
254
static int fast = 0;
255
static int genpts = 0;
256
static int lowres = 0;
257
static int idct = FF_IDCT_AUTO;
258
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
259
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
260
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
261
static int error_recognition = FF_ER_CAREFUL;
262
static int error_concealment = 3;
263
static int decoder_reorder_pts= -1;
264
static int autoexit;
265
static int exit_on_keydown;
266
static int exit_on_mousedown;
267
static int loop=1;
268
static int framedrop=1;
269

    
270
static int rdftspeed=20;
271
#if CONFIG_AVFILTER
272
static char *vfilters = NULL;
273
#endif
274

    
275
/* current context */
276
static int is_full_screen;
277
static VideoState *cur_stream;
278
static int64_t audio_callback_time;
279

    
280
static AVPacket flush_pkt;
281

    
282
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
283
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
284
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
285

    
286
static SDL_Surface *screen;
287

    
288
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289

    
290
/* packet queue handling */
291
static void packet_queue_init(PacketQueue *q)
292
{
293
    memset(q, 0, sizeof(PacketQueue));
294
    q->mutex = SDL_CreateMutex();
295
    q->cond = SDL_CreateCond();
296
    packet_queue_put(q, &flush_pkt);
297
}
298

    
299
static void packet_queue_flush(PacketQueue *q)
300
{
301
    AVPacketList *pkt, *pkt1;
302

    
303
    SDL_LockMutex(q->mutex);
304
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305
        pkt1 = pkt->next;
306
        av_free_packet(&pkt->pkt);
307
        av_freep(&pkt);
308
    }
309
    q->last_pkt = NULL;
310
    q->first_pkt = NULL;
311
    q->nb_packets = 0;
312
    q->size = 0;
313
    SDL_UnlockMutex(q->mutex);
314
}
315

    
316
static void packet_queue_end(PacketQueue *q)
317
{
318
    packet_queue_flush(q);
319
    SDL_DestroyMutex(q->mutex);
320
    SDL_DestroyCond(q->cond);
321
}
322

    
323
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
324
{
325
    AVPacketList *pkt1;
326

    
327
    /* duplicate the packet */
328
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
329
        return -1;
330

    
331
    pkt1 = av_malloc(sizeof(AVPacketList));
332
    if (!pkt1)
333
        return -1;
334
    pkt1->pkt = *pkt;
335
    pkt1->next = NULL;
336

    
337

    
338
    SDL_LockMutex(q->mutex);
339

    
340
    if (!q->last_pkt)
341

    
342
        q->first_pkt = pkt1;
343
    else
344
        q->last_pkt->next = pkt1;
345
    q->last_pkt = pkt1;
346
    q->nb_packets++;
347
    q->size += pkt1->pkt.size + sizeof(*pkt1);
348
    /* XXX: should duplicate packet data in DV case */
349
    SDL_CondSignal(q->cond);
350

    
351
    SDL_UnlockMutex(q->mutex);
352
    return 0;
353
}
354

    
355
static void packet_queue_abort(PacketQueue *q)
356
{
357
    SDL_LockMutex(q->mutex);
358

    
359
    q->abort_request = 1;
360

    
361
    SDL_CondSignal(q->cond);
362

    
363
    SDL_UnlockMutex(q->mutex);
364
}
365

    
366
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
367
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
368
{
369
    AVPacketList *pkt1;
370
    int ret;
371

    
372
    SDL_LockMutex(q->mutex);
373

    
374
    for(;;) {
375
        if (q->abort_request) {
376
            ret = -1;
377
            break;
378
        }
379

    
380
        pkt1 = q->first_pkt;
381
        if (pkt1) {
382
            q->first_pkt = pkt1->next;
383
            if (!q->first_pkt)
384
                q->last_pkt = NULL;
385
            q->nb_packets--;
386
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
387
            *pkt = pkt1->pkt;
388
            av_free(pkt1);
389
            ret = 1;
390
            break;
391
        } else if (!block) {
392
            ret = 0;
393
            break;
394
        } else {
395
            SDL_CondWait(q->cond, q->mutex);
396
        }
397
    }
398
    SDL_UnlockMutex(q->mutex);
399
    return ret;
400
}
401

    
402
static inline void fill_rectangle(SDL_Surface *screen,
403
                                  int x, int y, int w, int h, int color)
404
{
405
    SDL_Rect rect;
406
    rect.x = x;
407
    rect.y = y;
408
    rect.w = w;
409
    rect.h = h;
410
    SDL_FillRect(screen, &rect, color);
411
}
412

    
413
#if 0
414
/* draw only the border of a rectangle */
415
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
416
{
417
    int w1, w2, h1, h2;
418

419
    /* fill the background */
420
    w1 = x;
421
    if (w1 < 0)
422
        w1 = 0;
423
    w2 = s->width - (x + w);
424
    if (w2 < 0)
425
        w2 = 0;
426
    h1 = y;
427
    if (h1 < 0)
428
        h1 = 0;
429
    h2 = s->height - (y + h);
430
    if (h2 < 0)
431
        h2 = 0;
432
    fill_rectangle(screen,
433
                   s->xleft, s->ytop,
434
                   w1, s->height,
435
                   color);
436
    fill_rectangle(screen,
437
                   s->xleft + s->width - w2, s->ytop,
438
                   w2, s->height,
439
                   color);
440
    fill_rectangle(screen,
441
                   s->xleft + w1, s->ytop,
442
                   s->width - w1 - w2, h1,
443
                   color);
444
    fill_rectangle(screen,
445
                   s->xleft + w1, s->ytop + s->height - h2,
446
                   s->width - w1 - w2, h2,
447
                   color);
448
}
449
#endif
450

    
451
#define ALPHA_BLEND(a, oldp, newp, s)\
452
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
453

    
454
#define RGBA_IN(r, g, b, a, s)\
455
{\
456
    unsigned int v = ((const uint32_t *)(s))[0];\
457
    a = (v >> 24) & 0xff;\
458
    r = (v >> 16) & 0xff;\
459
    g = (v >> 8) & 0xff;\
460
    b = v & 0xff;\
461
}
462

    
463
#define YUVA_IN(y, u, v, a, s, pal)\
464
{\
465
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
466
    a = (val >> 24) & 0xff;\
467
    y = (val >> 16) & 0xff;\
468
    u = (val >> 8) & 0xff;\
469
    v = val & 0xff;\
470
}
471

    
472
#define YUVA_OUT(d, y, u, v, a)\
473
{\
474
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
475
}
476

    
477

    
478
#define BPP 1
479

    
480
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
481
{
482
    int wrap, wrap3, width2, skip2;
483
    int y, u, v, a, u1, v1, a1, w, h;
484
    uint8_t *lum, *cb, *cr;
485
    const uint8_t *p;
486
    const uint32_t *pal;
487
    int dstx, dsty, dstw, dsth;
488

    
489
    dstw = av_clip(rect->w, 0, imgw);
490
    dsth = av_clip(rect->h, 0, imgh);
491
    dstx = av_clip(rect->x, 0, imgw - dstw);
492
    dsty = av_clip(rect->y, 0, imgh - dsth);
493
    lum = dst->data[0] + dsty * dst->linesize[0];
494
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
495
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
496

    
497
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
498
    skip2 = dstx >> 1;
499
    wrap = dst->linesize[0];
500
    wrap3 = rect->pict.linesize[0];
501
    p = rect->pict.data[0];
502
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
503

    
504
    if (dsty & 1) {
505
        lum += dstx;
506
        cb += skip2;
507
        cr += skip2;
508

    
509
        if (dstx & 1) {
510
            YUVA_IN(y, u, v, a, p, pal);
511
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
512
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
513
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
514
            cb++;
515
            cr++;
516
            lum++;
517
            p += BPP;
518
        }
519
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
520
            YUVA_IN(y, u, v, a, p, pal);
521
            u1 = u;
522
            v1 = v;
523
            a1 = a;
524
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525

    
526
            YUVA_IN(y, u, v, a, p + BPP, pal);
527
            u1 += u;
528
            v1 += v;
529
            a1 += a;
530
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
531
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
532
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533
            cb++;
534
            cr++;
535
            p += 2 * BPP;
536
            lum += 2;
537
        }
538
        if (w) {
539
            YUVA_IN(y, u, v, a, p, pal);
540
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
542
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
543
            p++;
544
            lum++;
545
        }
546
        p += wrap3 - dstw * BPP;
547
        lum += wrap - dstw - dstx;
548
        cb += dst->linesize[1] - width2 - skip2;
549
        cr += dst->linesize[2] - width2 - skip2;
550
    }
551
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
552
        lum += dstx;
553
        cb += skip2;
554
        cr += skip2;
555

    
556
        if (dstx & 1) {
557
            YUVA_IN(y, u, v, a, p, pal);
558
            u1 = u;
559
            v1 = v;
560
            a1 = a;
561
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562
            p += wrap3;
563
            lum += wrap;
564
            YUVA_IN(y, u, v, a, p, pal);
565
            u1 += u;
566
            v1 += v;
567
            a1 += a;
568
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
570
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
571
            cb++;
572
            cr++;
573
            p += -wrap3 + BPP;
574
            lum += -wrap + 1;
575
        }
576
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
577
            YUVA_IN(y, u, v, a, p, pal);
578
            u1 = u;
579
            v1 = v;
580
            a1 = a;
581
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582

    
583
            YUVA_IN(y, u, v, a, p + BPP, pal);
584
            u1 += u;
585
            v1 += v;
586
            a1 += a;
587
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588
            p += wrap3;
589
            lum += wrap;
590

    
591
            YUVA_IN(y, u, v, a, p, pal);
592
            u1 += u;
593
            v1 += v;
594
            a1 += a;
595
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596

    
597
            YUVA_IN(y, u, v, a, p + BPP, pal);
598
            u1 += u;
599
            v1 += v;
600
            a1 += a;
601
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602

    
603
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
604
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
605

    
606
            cb++;
607
            cr++;
608
            p += -wrap3 + 2 * BPP;
609
            lum += -wrap + 2;
610
        }
611
        if (w) {
612
            YUVA_IN(y, u, v, a, p, pal);
613
            u1 = u;
614
            v1 = v;
615
            a1 = a;
616
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617
            p += wrap3;
618
            lum += wrap;
619
            YUVA_IN(y, u, v, a, p, pal);
620
            u1 += u;
621
            v1 += v;
622
            a1 += a;
623
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
624
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
625
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
626
            cb++;
627
            cr++;
628
            p += -wrap3 + BPP;
629
            lum += -wrap + 1;
630
        }
631
        p += wrap3 + (wrap3 - dstw * BPP);
632
        lum += wrap + (wrap - dstw - dstx);
633
        cb += dst->linesize[1] - width2 - skip2;
634
        cr += dst->linesize[2] - width2 - skip2;
635
    }
636
    /* handle odd height */
637
    if (h) {
638
        lum += dstx;
639
        cb += skip2;
640
        cr += skip2;
641

    
642
        if (dstx & 1) {
643
            YUVA_IN(y, u, v, a, p, pal);
644
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
645
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
646
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
647
            cb++;
648
            cr++;
649
            lum++;
650
            p += BPP;
651
        }
652
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
653
            YUVA_IN(y, u, v, a, p, pal);
654
            u1 = u;
655
            v1 = v;
656
            a1 = a;
657
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
658

    
659
            YUVA_IN(y, u, v, a, p + BPP, pal);
660
            u1 += u;
661
            v1 += v;
662
            a1 += a;
663
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
664
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
665
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
666
            cb++;
667
            cr++;
668
            p += 2 * BPP;
669
            lum += 2;
670
        }
671
        if (w) {
672
            YUVA_IN(y, u, v, a, p, pal);
673
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
674
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
675
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
676
        }
677
    }
678
}
679

    
680
static void free_subpicture(SubPicture *sp)
681
{
682
    avsubtitle_free(&sp->sub);
683
}
684

    
685
static void video_image_display(VideoState *is)
686
{
687
    VideoPicture *vp;
688
    SubPicture *sp;
689
    AVPicture pict;
690
    float aspect_ratio;
691
    int width, height, x, y;
692
    SDL_Rect rect;
693
    int i;
694

    
695
    vp = &is->pictq[is->pictq_rindex];
696
    if (vp->bmp) {
697
#if CONFIG_AVFILTER
698
         if (vp->picref->video->pixel_aspect.num == 0)
699
             aspect_ratio = 0;
700
         else
701
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
702
#else
703

    
704
        /* XXX: use variable in the frame */
705
        if (is->video_st->sample_aspect_ratio.num)
706
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
707
        else if (is->video_st->codec->sample_aspect_ratio.num)
708
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
709
        else
710
            aspect_ratio = 0;
711
#endif
712
        if (aspect_ratio <= 0.0)
713
            aspect_ratio = 1.0;
714
        aspect_ratio *= (float)vp->width / (float)vp->height;
715
        /* if an active format is indicated, then it overrides the
716
           mpeg format */
717
#if 0
718
        if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
719
            is->dtg_active_format = is->video_st->codec->dtg_active_format;
720
            printf("dtg_active_format=%d\n", is->dtg_active_format);
721
        }
722
#endif
723
#if 0
724
        switch(is->video_st->codec->dtg_active_format) {
725
        case FF_DTG_AFD_SAME:
726
        default:
727
            /* nothing to do */
728
            break;
729
        case FF_DTG_AFD_4_3:
730
            aspect_ratio = 4.0 / 3.0;
731
            break;
732
        case FF_DTG_AFD_16_9:
733
            aspect_ratio = 16.0 / 9.0;
734
            break;
735
        case FF_DTG_AFD_14_9:
736
            aspect_ratio = 14.0 / 9.0;
737
            break;
738
        case FF_DTG_AFD_4_3_SP_14_9:
739
            aspect_ratio = 14.0 / 9.0;
740
            break;
741
        case FF_DTG_AFD_16_9_SP_14_9:
742
            aspect_ratio = 14.0 / 9.0;
743
            break;
744
        case FF_DTG_AFD_SP_4_3:
745
            aspect_ratio = 4.0 / 3.0;
746
            break;
747
        }
748
#endif
749

    
750
        if (is->subtitle_st)
751
        {
752
            if (is->subpq_size > 0)
753
            {
754
                sp = &is->subpq[is->subpq_rindex];
755

    
756
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
757
                {
758
                    SDL_LockYUVOverlay (vp->bmp);
759

    
760
                    pict.data[0] = vp->bmp->pixels[0];
761
                    pict.data[1] = vp->bmp->pixels[2];
762
                    pict.data[2] = vp->bmp->pixels[1];
763

    
764
                    pict.linesize[0] = vp->bmp->pitches[0];
765
                    pict.linesize[1] = vp->bmp->pitches[2];
766
                    pict.linesize[2] = vp->bmp->pitches[1];
767

    
768
                    for (i = 0; i < sp->sub.num_rects; i++)
769
                        blend_subrect(&pict, sp->sub.rects[i],
770
                                      vp->bmp->w, vp->bmp->h);
771

    
772
                    SDL_UnlockYUVOverlay (vp->bmp);
773
                }
774
            }
775
        }
776

    
777

    
778
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
779
        height = is->height;
780
        width = ((int)rint(height * aspect_ratio)) & ~1;
781
        if (width > is->width) {
782
            width = is->width;
783
            height = ((int)rint(width / aspect_ratio)) & ~1;
784
        }
785
        x = (is->width - width) / 2;
786
        y = (is->height - height) / 2;
787
        if (!is->no_background) {
788
            /* fill the background */
789
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
790
        } else {
791
            is->no_background = 0;
792
        }
793
        rect.x = is->xleft + x;
794
        rect.y = is->ytop  + y;
795
        rect.w = width;
796
        rect.h = height;
797
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
798
    } else {
799
#if 0
800
        fill_rectangle(screen,
801
                       is->xleft, is->ytop, is->width, is->height,
802
                       QERGB(0x00, 0x00, 0x00));
803
#endif
804
    }
805
}
806

    
807
static inline int compute_mod(int a, int b)
808
{
809
    a = a % b;
810
    if (a >= 0)
811
        return a;
812
    else
813
        return a + b;
814
}
815

    
816
static void video_audio_display(VideoState *s)
817
{
818
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
819
    int ch, channels, h, h2, bgcolor, fgcolor;
820
    int16_t time_diff;
821
    int rdft_bits, nb_freq;
822

    
823
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
824
        ;
825
    nb_freq= 1<<(rdft_bits-1);
826

    
827
    /* compute display index : center on currently output samples */
828
    channels = s->audio_st->codec->channels;
829
    nb_display_channels = channels;
830
    if (!s->paused) {
831
        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
832
        n = 2 * channels;
833
        delay = audio_write_get_buf_size(s);
834
        delay /= n;
835

    
836
        /* to be more precise, we take into account the time spent since
837
           the last buffer computation */
838
        if (audio_callback_time) {
839
            time_diff = av_gettime() - audio_callback_time;
840
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
841
        }
842

    
843
        delay += 2*data_used;
844
        if (delay < data_used)
845
            delay = data_used;
846

    
847
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
848
        if(s->show_audio==1){
849
            h= INT_MIN;
850
            for(i=0; i<1000; i+=channels){
851
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
852
                int a= s->sample_array[idx];
853
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
854
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
855
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
856
                int score= a-d;
857
                if(h<score && (b^c)<0){
858
                    h= score;
859
                    i_start= idx;
860
                }
861
            }
862
        }
863

    
864
        s->last_i_start = i_start;
865
    } else {
866
        i_start = s->last_i_start;
867
    }
868

    
869
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
870
    if(s->show_audio==1){
871
        fill_rectangle(screen,
872
                       s->xleft, s->ytop, s->width, s->height,
873
                       bgcolor);
874

    
875
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
876

    
877
        /* total height for one channel */
878
        h = s->height / nb_display_channels;
879
        /* graph height / 2 */
880
        h2 = (h * 9) / 20;
881
        for(ch = 0;ch < nb_display_channels; ch++) {
882
            i = i_start + ch;
883
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
884
            for(x = 0; x < s->width; x++) {
885
                y = (s->sample_array[i] * h2) >> 15;
886
                if (y < 0) {
887
                    y = -y;
888
                    ys = y1 - y;
889
                } else {
890
                    ys = y1;
891
                }
892
                fill_rectangle(screen,
893
                               s->xleft + x, ys, 1, y,
894
                               fgcolor);
895
                i += channels;
896
                if (i >= SAMPLE_ARRAY_SIZE)
897
                    i -= SAMPLE_ARRAY_SIZE;
898
            }
899
        }
900

    
901
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
902

    
903
        for(ch = 1;ch < nb_display_channels; ch++) {
904
            y = s->ytop + ch * h;
905
            fill_rectangle(screen,
906
                           s->xleft, y, s->width, 1,
907
                           fgcolor);
908
        }
909
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
910
    }else{
911
        nb_display_channels= FFMIN(nb_display_channels, 2);
912
        if(rdft_bits != s->rdft_bits){
913
            av_rdft_end(s->rdft);
914
            av_free(s->rdft_data);
915
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
916
            s->rdft_bits= rdft_bits;
917
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
918
        }
919
        {
920
            FFTSample *data[2];
921
            for(ch = 0;ch < nb_display_channels; ch++) {
922
                data[ch] = s->rdft_data + 2*nb_freq*ch;
923
                i = i_start + ch;
924
                for(x = 0; x < 2*nb_freq; x++) {
925
                    double w= (x-nb_freq)*(1.0/nb_freq);
926
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
927
                    i += channels;
928
                    if (i >= SAMPLE_ARRAY_SIZE)
929
                        i -= SAMPLE_ARRAY_SIZE;
930
                }
931
                av_rdft_calc(s->rdft, data[ch]);
932
            }
933
            //least efficient way to do this, we should of course directly access it but its more than fast enough
934
            for(y=0; y<s->height; y++){
935
                double w= 1/sqrt(nb_freq);
936
                int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
937
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
938
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
939
                a= FFMIN(a,255);
940
                b= FFMIN(b,255);
941
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
942

    
943
                fill_rectangle(screen,
944
                            s->xpos, s->height-y, 1, 1,
945
                            fgcolor);
946
            }
947
        }
948
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
949
        s->xpos++;
950
        if(s->xpos >= s->width)
951
            s->xpos= s->xleft;
952
    }
953
}
954

    
955
static int video_open(VideoState *is){
956
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
957
    int w,h;
958

    
959
    if(is_full_screen) flags |= SDL_FULLSCREEN;
960
    else               flags |= SDL_RESIZABLE;
961

    
962
    if (is_full_screen && fs_screen_width) {
963
        w = fs_screen_width;
964
        h = fs_screen_height;
965
    } else if(!is_full_screen && screen_width){
966
        w = screen_width;
967
        h = screen_height;
968
#if CONFIG_AVFILTER
969
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
970
        w = is->out_video_filter->inputs[0]->w;
971
        h = is->out_video_filter->inputs[0]->h;
972
#else
973
    }else if (is->video_st && is->video_st->codec->width){
974
        w = is->video_st->codec->width;
975
        h = is->video_st->codec->height;
976
#endif
977
    } else {
978
        w = 640;
979
        h = 480;
980
    }
981
    if(screen && is->width == screen->w && screen->w == w
982
       && is->height== screen->h && screen->h == h)
983
        return 0;
984

    
985
#ifndef __APPLE__
986
    screen = SDL_SetVideoMode(w, h, 0, flags);
987
#else
988
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
989
    screen = SDL_SetVideoMode(w, h, 24, flags);
990
#endif
991
    if (!screen) {
992
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
993
        return -1;
994
    }
995
    if (!window_title)
996
        window_title = input_filename;
997
    SDL_WM_SetCaption(window_title, window_title);
998

    
999
    is->width = screen->w;
1000
    is->height = screen->h;
1001

    
1002
    return 0;
1003
}
1004

    
1005
/* display the current picture, if any */
1006
static void video_display(VideoState *is)
1007
{
1008
    if(!screen)
1009
        video_open(cur_stream);
1010
    if (is->audio_st && is->show_audio)
1011
        video_audio_display(is);
1012
    else if (is->video_st)
1013
        video_image_display(is);
1014
}
1015

    
1016
static int refresh_thread(void *opaque)
1017
{
1018
    VideoState *is= opaque;
1019
    while(!is->abort_request){
1020
        SDL_Event event;
1021
        event.type = FF_REFRESH_EVENT;
1022
        event.user.data1 = opaque;
1023
        if(!is->refresh){
1024
            is->refresh=1;
1025
            SDL_PushEvent(&event);
1026
        }
1027
        usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1028
    }
1029
    return 0;
1030
}
1031

    
1032
/* get the current audio clock value */
1033
static double get_audio_clock(VideoState *is)
1034
{
1035
    double pts;
1036
    int hw_buf_size, bytes_per_sec;
1037
    pts = is->audio_clock;
1038
    hw_buf_size = audio_write_get_buf_size(is);
1039
    bytes_per_sec = 0;
1040
    if (is->audio_st) {
1041
        bytes_per_sec = is->audio_st->codec->sample_rate *
1042
            2 * is->audio_st->codec->channels;
1043
    }
1044
    if (bytes_per_sec)
1045
        pts -= (double)hw_buf_size / bytes_per_sec;
1046
    return pts;
1047
}
1048

    
1049
/* get the current video clock value */
1050
static double get_video_clock(VideoState *is)
1051
{
1052
    if (is->paused) {
1053
        return is->video_current_pts;
1054
    } else {
1055
        return is->video_current_pts_drift + av_gettime() / 1000000.0;
1056
    }
1057
}
1058

    
1059
/* get the current external clock value */
1060
static double get_external_clock(VideoState *is)
1061
{
1062
    int64_t ti;
1063
    ti = av_gettime();
1064
    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1065
}
1066

    
1067
/* get the current master clock value */
1068
static double get_master_clock(VideoState *is)
1069
{
1070
    double val;
1071

    
1072
    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1073
        if (is->video_st)
1074
            val = get_video_clock(is);
1075
        else
1076
            val = get_audio_clock(is);
1077
    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1078
        if (is->audio_st)
1079
            val = get_audio_clock(is);
1080
        else
1081
            val = get_video_clock(is);
1082
    } else {
1083
        val = get_external_clock(is);
1084
    }
1085
    return val;
1086
}
1087

    
1088
/* seek in the stream */
1089
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1090
{
1091
    if (!is->seek_req) {
1092
        is->seek_pos = pos;
1093
        is->seek_rel = rel;
1094
        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1095
        if (seek_by_bytes)
1096
            is->seek_flags |= AVSEEK_FLAG_BYTE;
1097
        is->seek_req = 1;
1098
    }
1099
}
1100

    
1101
/* pause or resume the video */
1102
static void stream_pause(VideoState *is)
1103
{
1104
    if (is->paused) {
1105
        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1106
        if(is->read_pause_return != AVERROR(ENOSYS)){
1107
            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1108
        }
1109
        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1110
    }
1111
    is->paused = !is->paused;
1112
}
1113

    
1114
static double compute_target_time(double frame_current_pts, VideoState *is)
1115
{
1116
    double delay, sync_threshold, diff;
1117

    
1118
    /* compute nominal delay */
1119
    delay = frame_current_pts - is->frame_last_pts;
1120
    if (delay <= 0 || delay >= 10.0) {
1121
        /* if incorrect delay, use previous one */
1122
        delay = is->frame_last_delay;
1123
    } else {
1124
        is->frame_last_delay = delay;
1125
    }
1126
    is->frame_last_pts = frame_current_pts;
1127

    
1128
    /* update delay to follow master synchronisation source */
1129
    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1130
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1131
        /* if video is slave, we try to correct big delays by
1132
           duplicating or deleting a frame */
1133
        diff = get_video_clock(is) - get_master_clock(is);
1134

    
1135
        /* skip or repeat frame. We take into account the
1136
           delay to compute the threshold. I still don't know
1137
           if it is the best guess */
1138
        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1139
        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1140
            if (diff <= -sync_threshold)
1141
                delay = 0;
1142
            else if (diff >= sync_threshold)
1143
                delay = 2 * delay;
1144
        }
1145
    }
1146
    is->frame_timer += delay;
1147
#if defined(DEBUG_SYNC)
1148
    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1149
            delay, actual_delay, frame_current_pts, -diff);
1150
#endif
1151

    
1152
    return is->frame_timer;
1153
}
1154

    
1155
/* called to display each frame */
1156
static void video_refresh_timer(void *opaque)
1157
{
1158
    VideoState *is = opaque;
1159
    VideoPicture *vp;
1160

    
1161
    SubPicture *sp, *sp2;
1162

    
1163
    if (is->video_st) {
1164
retry:
1165
        if (is->pictq_size == 0) {
1166
            //nothing to do, no picture to display in the que
1167
        } else {
1168
            double time= av_gettime()/1000000.0;
1169
            double next_target;
1170
            /* dequeue the picture */
1171
            vp = &is->pictq[is->pictq_rindex];
1172

    
1173
            if(time < vp->target_clock)
1174
                return;
1175
            /* update current video pts */
1176
            is->video_current_pts = vp->pts;
1177
            is->video_current_pts_drift = is->video_current_pts - time;
1178
            is->video_current_pos = vp->pos;
1179
            if(is->pictq_size > 1){
1180
                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1181
                assert(nextvp->target_clock >= vp->target_clock);
1182
                next_target= nextvp->target_clock;
1183
            }else{
1184
                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1185
            }
1186
            if(framedrop && time > next_target){
1187
                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1188
                if(is->pictq_size > 1 || time > next_target + 0.5){
1189
                    /* update queue size and signal for next picture */
1190
                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1191
                        is->pictq_rindex = 0;
1192

    
1193
                    SDL_LockMutex(is->pictq_mutex);
1194
                    is->pictq_size--;
1195
                    SDL_CondSignal(is->pictq_cond);
1196
                    SDL_UnlockMutex(is->pictq_mutex);
1197
                    goto retry;
1198
                }
1199
            }
1200

    
1201
            if(is->subtitle_st) {
1202
                if (is->subtitle_stream_changed) {
1203
                    SDL_LockMutex(is->subpq_mutex);
1204

    
1205
                    while (is->subpq_size) {
1206
                        free_subpicture(&is->subpq[is->subpq_rindex]);
1207

    
1208
                        /* update queue size and signal for next picture */
1209
                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1210
                            is->subpq_rindex = 0;
1211

    
1212
                        is->subpq_size--;
1213
                    }
1214
                    is->subtitle_stream_changed = 0;
1215

    
1216
                    SDL_CondSignal(is->subpq_cond);
1217
                    SDL_UnlockMutex(is->subpq_mutex);
1218
                } else {
1219
                    if (is->subpq_size > 0) {
1220
                        sp = &is->subpq[is->subpq_rindex];
1221

    
1222
                        if (is->subpq_size > 1)
1223
                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1224
                        else
1225
                            sp2 = NULL;
1226

    
1227
                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1228
                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1229
                        {
1230
                            free_subpicture(sp);
1231

    
1232
                            /* update queue size and signal for next picture */
1233
                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1234
                                is->subpq_rindex = 0;
1235

    
1236
                            SDL_LockMutex(is->subpq_mutex);
1237
                            is->subpq_size--;
1238
                            SDL_CondSignal(is->subpq_cond);
1239
                            SDL_UnlockMutex(is->subpq_mutex);
1240
                        }
1241
                    }
1242
                }
1243
            }
1244

    
1245
            /* display picture */
1246
            if (!display_disable)
1247
                video_display(is);
1248

    
1249
            /* update queue size and signal for next picture */
1250
            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1251
                is->pictq_rindex = 0;
1252

    
1253
            SDL_LockMutex(is->pictq_mutex);
1254
            is->pictq_size--;
1255
            SDL_CondSignal(is->pictq_cond);
1256
            SDL_UnlockMutex(is->pictq_mutex);
1257
        }
1258
    } else if (is->audio_st) {
1259
        /* draw the next audio frame */
1260

    
1261
        /* if only audio stream, then display the audio bars (better
1262
           than nothing, just to test the implementation */
1263

    
1264
        /* display picture */
1265
        if (!display_disable)
1266
            video_display(is);
1267
    }
1268
    if (show_status) {
1269
        static int64_t last_time;
1270
        int64_t cur_time;
1271
        int aqsize, vqsize, sqsize;
1272
        double av_diff;
1273

    
1274
        cur_time = av_gettime();
1275
        if (!last_time || (cur_time - last_time) >= 30000) {
1276
            aqsize = 0;
1277
            vqsize = 0;
1278
            sqsize = 0;
1279
            if (is->audio_st)
1280
                aqsize = is->audioq.size;
1281
            if (is->video_st)
1282
                vqsize = is->videoq.size;
1283
            if (is->subtitle_st)
1284
                sqsize = is->subtitleq.size;
1285
            av_diff = 0;
1286
            if (is->audio_st && is->video_st)
1287
                av_diff = get_audio_clock(is) - get_video_clock(is);
1288
            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1289
                   get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1290
            fflush(stdout);
1291
            last_time = cur_time;
1292
        }
1293
    }
1294
}
1295

    
1296
static void stream_close(VideoState *is)
1297
{
1298
    VideoPicture *vp;
1299
    int i;
1300
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1301
    is->abort_request = 1;
1302
    SDL_WaitThread(is->parse_tid, NULL);
1303
    SDL_WaitThread(is->refresh_tid, NULL);
1304

    
1305
    /* free all pictures */
1306
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1307
        vp = &is->pictq[i];
1308
#if CONFIG_AVFILTER
1309
        if (vp->picref) {
1310
            avfilter_unref_buffer(vp->picref);
1311
            vp->picref = NULL;
1312
        }
1313
#endif
1314
        if (vp->bmp) {
1315
            SDL_FreeYUVOverlay(vp->bmp);
1316
            vp->bmp = NULL;
1317
        }
1318
    }
1319
    SDL_DestroyMutex(is->pictq_mutex);
1320
    SDL_DestroyCond(is->pictq_cond);
1321
    SDL_DestroyMutex(is->subpq_mutex);
1322
    SDL_DestroyCond(is->subpq_cond);
1323
#if !CONFIG_AVFILTER
1324
    if (is->img_convert_ctx)
1325
        sws_freeContext(is->img_convert_ctx);
1326
#endif
1327
    av_free(is);
1328
}
1329

    
1330
static void do_exit(void)
1331
{
1332
    if (cur_stream) {
1333
        stream_close(cur_stream);
1334
        cur_stream = NULL;
1335
    }
1336
    uninit_opts();
1337
#if CONFIG_AVFILTER
1338
    avfilter_uninit();
1339
#endif
1340
    if (show_status)
1341
        printf("\n");
1342
    SDL_Quit();
1343
    av_log(NULL, AV_LOG_QUIET, "");
1344
    exit(0);
1345
}
1346

    
1347
/* allocate a picture (needs to do that in main thread to avoid
1348
   potential locking problems */
1349
static void alloc_picture(void *opaque)
1350
{
1351
    VideoState *is = opaque;
1352
    VideoPicture *vp;
1353

    
1354
    vp = &is->pictq[is->pictq_windex];
1355

    
1356
    if (vp->bmp)
1357
        SDL_FreeYUVOverlay(vp->bmp);
1358

    
1359
#if CONFIG_AVFILTER
1360
    if (vp->picref)
1361
        avfilter_unref_buffer(vp->picref);
1362
    vp->picref = NULL;
1363

    
1364
    vp->width   = is->out_video_filter->inputs[0]->w;
1365
    vp->height  = is->out_video_filter->inputs[0]->h;
1366
    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1367
#else
1368
    vp->width   = is->video_st->codec->width;
1369
    vp->height  = is->video_st->codec->height;
1370
    vp->pix_fmt = is->video_st->codec->pix_fmt;
1371
#endif
1372

    
1373
    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1374
                                   SDL_YV12_OVERLAY,
1375
                                   screen);
1376
    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1377
        /* SDL allocates a buffer smaller than requested if the video
1378
         * overlay hardware is unable to support the requested size. */
1379
        fprintf(stderr, "Error: the video system does not support an image\n"
1380
                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1381
                        "to reduce the image size.\n", vp->width, vp->height );
1382
        do_exit();
1383
    }
1384

    
1385
    SDL_LockMutex(is->pictq_mutex);
1386
    vp->allocated = 1;
1387
    SDL_CondSignal(is->pictq_cond);
1388
    SDL_UnlockMutex(is->pictq_mutex);
1389
}
1390

    
1391
/**
1392
 *
1393
 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1394
 */
1395
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1396
{
1397
    VideoPicture *vp;
1398
    int dst_pix_fmt;
1399
#if CONFIG_AVFILTER
1400
    AVPicture pict_src;
1401
#endif
1402
    /* wait until we have space to put a new picture */
1403
    SDL_LockMutex(is->pictq_mutex);
1404

    
1405
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1406
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1407

    
1408
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1409
           !is->videoq.abort_request) {
1410
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1411
    }
1412
    SDL_UnlockMutex(is->pictq_mutex);
1413

    
1414
    if (is->videoq.abort_request)
1415
        return -1;
1416

    
1417
    vp = &is->pictq[is->pictq_windex];
1418

    
1419
    /* alloc or resize hardware picture buffer */
1420
    if (!vp->bmp ||
1421
#if CONFIG_AVFILTER
1422
        vp->width  != is->out_video_filter->inputs[0]->w ||
1423
        vp->height != is->out_video_filter->inputs[0]->h) {
1424
#else
1425
        vp->width != is->video_st->codec->width ||
1426
        vp->height != is->video_st->codec->height) {
1427
#endif
1428
        SDL_Event event;
1429

    
1430
        vp->allocated = 0;
1431

    
1432
        /* the allocation must be done in the main thread to avoid
1433
           locking problems */
1434
        event.type = FF_ALLOC_EVENT;
1435
        event.user.data1 = is;
1436
        SDL_PushEvent(&event);
1437

    
1438
        /* wait until the picture is allocated */
1439
        SDL_LockMutex(is->pictq_mutex);
1440
        while (!vp->allocated && !is->videoq.abort_request) {
1441
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1442
        }
1443
        SDL_UnlockMutex(is->pictq_mutex);
1444

    
1445
        if (is->videoq.abort_request)
1446
            return -1;
1447
    }
1448

    
1449
    /* if the frame is not skipped, then display it */
1450
    if (vp->bmp) {
1451
        AVPicture pict;
1452
#if CONFIG_AVFILTER
1453
        if(vp->picref)
1454
            avfilter_unref_buffer(vp->picref);
1455
        vp->picref = src_frame->opaque;
1456
#endif
1457

    
1458
        /* get a pointer on the bitmap */
1459
        SDL_LockYUVOverlay (vp->bmp);
1460

    
1461
        dst_pix_fmt = PIX_FMT_YUV420P;
1462
        memset(&pict,0,sizeof(AVPicture));
1463
        pict.data[0] = vp->bmp->pixels[0];
1464
        pict.data[1] = vp->bmp->pixels[2];
1465
        pict.data[2] = vp->bmp->pixels[1];
1466

    
1467
        pict.linesize[0] = vp->bmp->pitches[0];
1468
        pict.linesize[1] = vp->bmp->pitches[2];
1469
        pict.linesize[2] = vp->bmp->pitches[1];
1470

    
1471
#if CONFIG_AVFILTER
1472
        pict_src.data[0] = src_frame->data[0];
1473
        pict_src.data[1] = src_frame->data[1];
1474
        pict_src.data[2] = src_frame->data[2];
1475

    
1476
        pict_src.linesize[0] = src_frame->linesize[0];
1477
        pict_src.linesize[1] = src_frame->linesize[1];
1478
        pict_src.linesize[2] = src_frame->linesize[2];
1479

    
1480
        //FIXME use direct rendering
1481
        av_picture_copy(&pict, &pict_src,
1482
                        vp->pix_fmt, vp->width, vp->height);
1483
#else
1484
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1485
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1486
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1487
            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1488
        if (is->img_convert_ctx == NULL) {
1489
            fprintf(stderr, "Cannot initialize the conversion context\n");
1490
            exit(1);
1491
        }
1492
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1493
                  0, vp->height, pict.data, pict.linesize);
1494
#endif
1495
        /* update the bitmap content */
1496
        SDL_UnlockYUVOverlay(vp->bmp);
1497

    
1498
        vp->pts = pts;
1499
        vp->pos = pos;
1500

    
1501
        /* now we can update the picture count */
1502
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1503
            is->pictq_windex = 0;
1504
        SDL_LockMutex(is->pictq_mutex);
1505
        vp->target_clock= compute_target_time(vp->pts, is);
1506

    
1507
        is->pictq_size++;
1508
        SDL_UnlockMutex(is->pictq_mutex);
1509
    }
1510
    return 0;
1511
}
1512

    
1513
/**
1514
 * compute the exact PTS for the picture if it is omitted in the stream
1515
 * @param pts1 the dts of the pkt / pts of the frame
1516
 */
1517
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1518
{
1519
    double frame_delay, pts;
1520

    
1521
    pts = pts1;
1522

    
1523
    if (pts != 0) {
1524
        /* update video clock with pts, if present */
1525
        is->video_clock = pts;
1526
    } else {
1527
        pts = is->video_clock;
1528
    }
1529
    /* update video clock for next frame */
1530
    frame_delay = av_q2d(is->video_st->codec->time_base);
1531
    /* for MPEG2, the frame can be repeated, so we update the
1532
       clock accordingly */
1533
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1534
    is->video_clock += frame_delay;
1535

    
1536
#if defined(DEBUG_SYNC) && 0
1537
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1538
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1539
#endif
1540
    return queue_picture(is, src_frame, pts, pos);
1541
}
1542

    
1543
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1544
{
1545
    int len1, got_picture, i;
1546

    
1547
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1548
        return -1;
1549

    
1550
    if (pkt->data == flush_pkt.data) {
1551
        avcodec_flush_buffers(is->video_st->codec);
1552

    
1553
        SDL_LockMutex(is->pictq_mutex);
1554
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1555
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1556
            is->pictq[i].target_clock= 0;
1557
        }
1558
        while (is->pictq_size && !is->videoq.abort_request) {
1559
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1560
        }
1561
        is->video_current_pos = -1;
1562
        SDL_UnlockMutex(is->pictq_mutex);
1563

    
1564
        init_pts_correction(&is->pts_ctx);
1565
        is->frame_last_pts = AV_NOPTS_VALUE;
1566
        is->frame_last_delay = 0;
1567
        is->frame_timer = (double)av_gettime() / 1000000.0;
1568
        is->skip_frames = 1;
1569
        is->skip_frames_index = 0;
1570
        return 0;
1571
    }
1572

    
1573
    is->video_st->codec->reordered_opaque = pkt->pts;
1574
    len1 = avcodec_decode_video2(is->video_st->codec,
1575
                                 frame, &got_picture,
1576
                                 pkt);
1577

    
1578
    if (got_picture) {
1579
        if (decoder_reorder_pts == -1) {
1580
            *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1581
        } else if (decoder_reorder_pts) {
1582
            *pts = frame->reordered_opaque;
1583
        } else {
1584
            *pts = pkt->dts;
1585
        }
1586

    
1587
        if (*pts == AV_NOPTS_VALUE) {
1588
            *pts = 0;
1589
        }
1590

    
1591
        is->skip_frames_index += 1;
1592
        if(is->skip_frames_index >= is->skip_frames){
1593
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1594
            return 1;
1595
        }
1596

    
1597
    }
1598
    return 0;
1599
}
1600

    
1601
#if CONFIG_AVFILTER
1602
typedef struct {
1603
    VideoState *is;
1604
    AVFrame *frame;
1605
    int use_dr1;
1606
} FilterPriv;
1607

    
1608
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1609
{
1610
    AVFilterContext *ctx = codec->opaque;
1611
    AVFilterBufferRef  *ref;
1612
    int perms = AV_PERM_WRITE;
1613
    int i, w, h, stride[4];
1614
    unsigned edge;
1615

    
1616
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1617
        perms |= AV_PERM_NEG_LINESIZES;
1618

    
1619
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1620
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1621
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1622
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623
    }
1624
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1625

    
1626
    w = codec->width;
1627
    h = codec->height;
1628
    avcodec_align_dimensions2(codec, &w, &h, stride);
1629
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1630
    w += edge << 1;
1631
    h += edge << 1;
1632

    
1633
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1634
        return -1;
1635

    
1636
    ref->video->w = codec->width;
1637
    ref->video->h = codec->height;
1638
    for(i = 0; i < 4; i ++) {
1639
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1640
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1641

    
1642
        if (ref->data[i]) {
1643
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644
        }
1645
        pic->data[i]     = ref->data[i];
1646
        pic->linesize[i] = ref->linesize[i];
1647
    }
1648
    pic->opaque = ref;
1649
    pic->age    = INT_MAX;
1650
    pic->type   = FF_BUFFER_TYPE_USER;
1651
    pic->reordered_opaque = codec->reordered_opaque;
1652
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1653
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1654
    return 0;
1655
}
1656

    
1657
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1658
{
1659
    memset(pic->data, 0, sizeof(pic->data));
1660
    avfilter_unref_buffer(pic->opaque);
1661
}
1662

    
1663
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1664
{
1665
    AVFilterBufferRef *ref = pic->opaque;
1666

    
1667
    if (pic->data[0] == NULL) {
1668
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1669
        return codec->get_buffer(codec, pic);
1670
    }
1671

    
1672
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1673
        (codec->pix_fmt != ref->format)) {
1674
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1675
        return -1;
1676
    }
1677

    
1678
    pic->reordered_opaque = codec->reordered_opaque;
1679
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1680
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1681
    return 0;
1682
}
1683

    
1684
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1685
{
1686
    FilterPriv *priv = ctx->priv;
1687
    AVCodecContext *codec;
1688
    if(!opaque) return -1;
1689

    
1690
    priv->is = opaque;
1691
    codec    = priv->is->video_st->codec;
1692
    codec->opaque = ctx;
1693
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1694
        priv->use_dr1 = 1;
1695
        codec->get_buffer     = input_get_buffer;
1696
        codec->release_buffer = input_release_buffer;
1697
        codec->reget_buffer   = input_reget_buffer;
1698
    }
1699

    
1700
    priv->frame = avcodec_alloc_frame();
1701

    
1702
    return 0;
1703
}
1704

    
1705
static void input_uninit(AVFilterContext *ctx)
1706
{
1707
    FilterPriv *priv = ctx->priv;
1708
    av_free(priv->frame);
1709
}
1710

    
1711
static int input_request_frame(AVFilterLink *link)
1712
{
1713
    FilterPriv *priv = link->src->priv;
1714
    AVFilterBufferRef *picref;
1715
    int64_t pts = 0;
1716
    AVPacket pkt;
1717
    int ret;
1718

    
1719
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1720
        av_free_packet(&pkt);
1721
    if (ret < 0)
1722
        return -1;
1723

    
1724
    if(priv->use_dr1) {
1725
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1726
    } else {
1727
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1728
        av_image_copy(picref->data, picref->linesize,
1729
                      priv->frame->data, priv->frame->linesize,
1730
                      picref->format, link->w, link->h);
1731
    }
1732
    av_free_packet(&pkt);
1733

    
1734
    picref->pts = pts;
1735
    picref->pos = pkt.pos;
1736
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1737
    avfilter_start_frame(link, picref);
1738
    avfilter_draw_slice(link, 0, link->h, 1);
1739
    avfilter_end_frame(link);
1740

    
1741
    return 0;
1742
}
1743

    
1744
static int input_query_formats(AVFilterContext *ctx)
1745
{
1746
    FilterPriv *priv = ctx->priv;
1747
    enum PixelFormat pix_fmts[] = {
1748
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1749
    };
1750

    
1751
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1752
    return 0;
1753
}
1754

    
1755
static int input_config_props(AVFilterLink *link)
1756
{
1757
    FilterPriv *priv  = link->src->priv;
1758
    AVCodecContext *c = priv->is->video_st->codec;
1759

    
1760
    link->w = c->width;
1761
    link->h = c->height;
1762
    link->time_base = priv->is->video_st->time_base;
1763

    
1764
    return 0;
1765
}
1766

    
1767
static AVFilter input_filter =
1768
{
1769
    .name      = "ffplay_input",
1770

    
1771
    .priv_size = sizeof(FilterPriv),
1772

    
1773
    .init      = input_init,
1774
    .uninit    = input_uninit,
1775

    
1776
    .query_formats = input_query_formats,
1777

    
1778
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1779
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1780
                                    .type = AVMEDIA_TYPE_VIDEO,
1781
                                    .request_frame = input_request_frame,
1782
                                    .config_props  = input_config_props, },
1783
                                  { .name = NULL }},
1784
};
1785

    
1786
#endif  /* CONFIG_AVFILTER */
1787

    
1788
static int video_thread(void *arg)
1789
{
1790
    VideoState *is = arg;
1791
    AVFrame *frame= avcodec_alloc_frame();
1792
    int64_t pts_int;
1793
    double pts;
1794
    int ret;
1795

    
1796
#if CONFIG_AVFILTER
1797
    int64_t pos;
1798
    char sws_flags_str[128];
1799
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1800
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1801
    AVFilterGraph *graph = avfilter_graph_alloc();
1802
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1803
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1804

    
1805
    if (avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1806
                                     NULL, is, graph) < 0)
1807
        goto the_end;
1808
    if (avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1809
                                     NULL, &ffsink_ctx, graph) < 0)
1810
        goto the_end;
1811

    
1812
    if(vfilters) {
1813
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1814
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1815

    
1816
        outputs->name    = av_strdup("in");
1817
        outputs->filter_ctx = filt_src;
1818
        outputs->pad_idx = 0;
1819
        outputs->next    = NULL;
1820

    
1821
        inputs->name    = av_strdup("out");
1822
        inputs->filter_ctx = filt_out;
1823
        inputs->pad_idx = 0;
1824
        inputs->next    = NULL;
1825

    
1826
        if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1827
            goto the_end;
1828
        av_freep(&vfilters);
1829
    } else {
1830
        if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1831
    }
1832

    
1833
    if (avfilter_graph_config(graph, NULL) < 0)
1834
        goto the_end;
1835

    
1836
    is->out_video_filter = filt_out;
1837
#endif
1838

    
1839
    for(;;) {
1840
#if !CONFIG_AVFILTER
1841
        AVPacket pkt;
1842
#else
1843
        AVFilterBufferRef *picref;
1844
        AVRational tb;
1845
#endif
1846
        while (is->paused && !is->videoq.abort_request)
1847
            SDL_Delay(10);
1848
#if CONFIG_AVFILTER
1849
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1850
        if (picref) {
1851
            pts_int = picref->pts;
1852
            pos     = picref->pos;
1853
            frame->opaque = picref;
1854
        }
1855

    
1856
        if (av_cmp_q(tb, is->video_st->time_base)) {
1857
            av_unused int64_t pts1 = pts_int;
1858
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1859
            av_dlog(NULL, "video_thread(): "
1860
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1861
                    tb.num, tb.den, pts1,
1862
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1863
        }
1864
#else
1865
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1866
#endif
1867

    
1868
        if (ret < 0) goto the_end;
1869

    
1870
        if (!ret)
1871
            continue;
1872

    
1873
        pts = pts_int*av_q2d(is->video_st->time_base);
1874

    
1875
#if CONFIG_AVFILTER
1876
        ret = output_picture2(is, frame, pts, pos);
1877
#else
1878
        ret = output_picture2(is, frame, pts,  pkt.pos);
1879
        av_free_packet(&pkt);
1880
#endif
1881
        if (ret < 0)
1882
            goto the_end;
1883

    
1884
        if (step)
1885
            if (cur_stream)
1886
                stream_pause(cur_stream);
1887
    }
1888
 the_end:
1889
#if CONFIG_AVFILTER
1890
    avfilter_graph_free(graph);
1891
    av_freep(&graph);
1892
#endif
1893
    av_free(frame);
1894
    return 0;
1895
}
1896

    
1897
static int subtitle_thread(void *arg)
1898
{
1899
    VideoState *is = arg;
1900
    SubPicture *sp;
1901
    AVPacket pkt1, *pkt = &pkt1;
1902
    int len1, got_subtitle;
1903
    double pts;
1904
    int i, j;
1905
    int r, g, b, y, u, v, a;
1906

    
1907
    for(;;) {
1908
        while (is->paused && !is->subtitleq.abort_request) {
1909
            SDL_Delay(10);
1910
        }
1911
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1912
            break;
1913

    
1914
        if(pkt->data == flush_pkt.data){
1915
            avcodec_flush_buffers(is->subtitle_st->codec);
1916
            continue;
1917
        }
1918
        SDL_LockMutex(is->subpq_mutex);
1919
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1920
               !is->subtitleq.abort_request) {
1921
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1922
        }
1923
        SDL_UnlockMutex(is->subpq_mutex);
1924

    
1925
        if (is->subtitleq.abort_request)
1926
            goto the_end;
1927

    
1928
        sp = &is->subpq[is->subpq_windex];
1929

    
1930
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1931
           this packet, if any */
1932
        pts = 0;
1933
        if (pkt->pts != AV_NOPTS_VALUE)
1934
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1935

    
1936
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1937
                                    &sp->sub, &got_subtitle,
1938
                                    pkt);
1939
//            if (len1 < 0)
1940
//                break;
1941
        if (got_subtitle && sp->sub.format == 0) {
1942
            sp->pts = pts;
1943

    
1944
            for (i = 0; i < sp->sub.num_rects; i++)
1945
            {
1946
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1947
                {
1948
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1949
                    y = RGB_TO_Y_CCIR(r, g, b);
1950
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1951
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1952
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1953
                }
1954
            }
1955

    
1956
            /* now we can update the picture count */
1957
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1958
                is->subpq_windex = 0;
1959
            SDL_LockMutex(is->subpq_mutex);
1960
            is->subpq_size++;
1961
            SDL_UnlockMutex(is->subpq_mutex);
1962
        }
1963
        av_free_packet(pkt);
1964
//        if (step)
1965
//            if (cur_stream)
1966
//                stream_pause(cur_stream);
1967
    }
1968
 the_end:
1969
    return 0;
1970
}
1971

    
1972
/* copy samples for viewing in editor window */
1973
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1974
{
1975
    int size, len, channels;
1976

    
1977
    channels = is->audio_st->codec->channels;
1978

    
1979
    size = samples_size / sizeof(short);
1980
    while (size > 0) {
1981
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1982
        if (len > size)
1983
            len = size;
1984
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1985
        samples += len;
1986
        is->sample_array_index += len;
1987
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1988
            is->sample_array_index = 0;
1989
        size -= len;
1990
    }
1991
}
1992

    
1993
/* return the new audio buffer size (samples can be added or deleted
1994
   to get better sync if video or external master clock) */
1995
static int synchronize_audio(VideoState *is, short *samples,
1996
                             int samples_size1, double pts)
1997
{
1998
    int n, samples_size;
1999
    double ref_clock;
2000

    
2001
    n = 2 * is->audio_st->codec->channels;
2002
    samples_size = samples_size1;
2003

    
2004
    /* if not master, then we try to remove or add samples to correct the clock */
2005
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2006
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2007
        double diff, avg_diff;
2008
        int wanted_size, min_size, max_size, nb_samples;
2009

    
2010
        ref_clock = get_master_clock(is);
2011
        diff = get_audio_clock(is) - ref_clock;
2012

    
2013
        if (diff < AV_NOSYNC_THRESHOLD) {
2014
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2015
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2016
                /* not enough measures to have a correct estimate */
2017
                is->audio_diff_avg_count++;
2018
            } else {
2019
                /* estimate the A-V difference */
2020
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2021

    
2022
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2023
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2024
                    nb_samples = samples_size / n;
2025

    
2026
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2027
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2028
                    if (wanted_size < min_size)
2029
                        wanted_size = min_size;
2030
                    else if (wanted_size > max_size)
2031
                        wanted_size = max_size;
2032

    
2033
                    /* add or remove samples to correction the synchro */
2034
                    if (wanted_size < samples_size) {
2035
                        /* remove samples */
2036
                        samples_size = wanted_size;
2037
                    } else if (wanted_size > samples_size) {
2038
                        uint8_t *samples_end, *q;
2039
                        int nb;
2040

    
2041
                        /* add samples */
2042
                        nb = (samples_size - wanted_size);
2043
                        samples_end = (uint8_t *)samples + samples_size - n;
2044
                        q = samples_end + n;
2045
                        while (nb > 0) {
2046
                            memcpy(q, samples_end, n);
2047
                            q += n;
2048
                            nb -= n;
2049
                        }
2050
                        samples_size = wanted_size;
2051
                    }
2052
                }
2053
#if 0
2054
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2055
                       diff, avg_diff, samples_size - samples_size1,
2056
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2057
#endif
2058
            }
2059
        } else {
2060
            /* too big difference : may be initial PTS errors, so
2061
               reset A-V filter */
2062
            is->audio_diff_avg_count = 0;
2063
            is->audio_diff_cum = 0;
2064
        }
2065
    }
2066

    
2067
    return samples_size;
2068
}
2069

    
2070
/* decode one audio frame and returns its uncompressed size */
2071
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2072
{
2073
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2074
    AVPacket *pkt = &is->audio_pkt;
2075
    AVCodecContext *dec= is->audio_st->codec;
2076
    int n, len1, data_size;
2077
    double pts;
2078

    
2079
    for(;;) {
2080
        /* NOTE: the audio packet can contain several frames */
2081
        while (pkt_temp->size > 0) {
2082
            data_size = sizeof(is->audio_buf1);
2083
            len1 = avcodec_decode_audio3(dec,
2084
                                        (int16_t *)is->audio_buf1, &data_size,
2085
                                        pkt_temp);
2086
            if (len1 < 0) {
2087
                /* if error, we skip the frame */
2088
                pkt_temp->size = 0;
2089
                break;
2090
            }
2091

    
2092
            pkt_temp->data += len1;
2093
            pkt_temp->size -= len1;
2094
            if (data_size <= 0)
2095
                continue;
2096

    
2097
            if (dec->sample_fmt != is->audio_src_fmt) {
2098
                if (is->reformat_ctx)
2099
                    av_audio_convert_free(is->reformat_ctx);
2100
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2101
                                                         dec->sample_fmt, 1, NULL, 0);
2102
                if (!is->reformat_ctx) {
2103
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2104
                        av_get_sample_fmt_name(dec->sample_fmt),
2105
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2106
                        break;
2107
                }
2108
                is->audio_src_fmt= dec->sample_fmt;
2109
            }
2110

    
2111
            if (is->reformat_ctx) {
2112
                const void *ibuf[6]= {is->audio_buf1};
2113
                void *obuf[6]= {is->audio_buf2};
2114
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2115
                int ostride[6]= {2};
2116
                int len= data_size/istride[0];
2117
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2118
                    printf("av_audio_convert() failed\n");
2119
                    break;
2120
                }
2121
                is->audio_buf= is->audio_buf2;
2122
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2123
                          remove this legacy cruft */
2124
                data_size= len*2;
2125
            }else{
2126
                is->audio_buf= is->audio_buf1;
2127
            }
2128

    
2129
            /* if no pts, then compute it */
2130
            pts = is->audio_clock;
2131
            *pts_ptr = pts;
2132
            n = 2 * dec->channels;
2133
            is->audio_clock += (double)data_size /
2134
                (double)(n * dec->sample_rate);
2135
#if defined(DEBUG_SYNC)
2136
            {
2137
                static double last_clock;
2138
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2139
                       is->audio_clock - last_clock,
2140
                       is->audio_clock, pts);
2141
                last_clock = is->audio_clock;
2142
            }
2143
#endif
2144
            return data_size;
2145
        }
2146

    
2147
        /* free the current packet */
2148
        if (pkt->data)
2149
            av_free_packet(pkt);
2150

    
2151
        if (is->paused || is->audioq.abort_request) {
2152
            return -1;
2153
        }
2154

    
2155
        /* read next packet */
2156
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2157
            return -1;
2158
        if(pkt->data == flush_pkt.data){
2159
            avcodec_flush_buffers(dec);
2160
            continue;
2161
        }
2162

    
2163
        pkt_temp->data = pkt->data;
2164
        pkt_temp->size = pkt->size;
2165

    
2166
        /* if update the audio clock with the pts */
2167
        if (pkt->pts != AV_NOPTS_VALUE) {
2168
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2169
        }
2170
    }
2171
}
2172

    
2173
/* get the current audio output buffer size, in samples. With SDL, we
2174
   cannot have a precise information */
2175
static int audio_write_get_buf_size(VideoState *is)
2176
{
2177
    return is->audio_buf_size - is->audio_buf_index;
2178
}
2179

    
2180

    
2181
/* prepare a new audio buffer */
2182
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2183
{
2184
    VideoState *is = opaque;
2185
    int audio_size, len1;
2186
    double pts;
2187

    
2188
    audio_callback_time = av_gettime();
2189

    
2190
    while (len > 0) {
2191
        if (is->audio_buf_index >= is->audio_buf_size) {
2192
           audio_size = audio_decode_frame(is, &pts);
2193
           if (audio_size < 0) {
2194
                /* if error, just output silence */
2195
               is->audio_buf = is->audio_buf1;
2196
               is->audio_buf_size = 1024;
2197
               memset(is->audio_buf, 0, is->audio_buf_size);
2198
           } else {
2199
               if (is->show_audio)
2200
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2201
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2202
                                              pts);
2203
               is->audio_buf_size = audio_size;
2204
           }
2205
           is->audio_buf_index = 0;
2206
        }
2207
        len1 = is->audio_buf_size - is->audio_buf_index;
2208
        if (len1 > len)
2209
            len1 = len;
2210
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2211
        len -= len1;
2212
        stream += len1;
2213
        is->audio_buf_index += len1;
2214
    }
2215
}
2216

    
2217
/* open a given stream. Return 0 if OK */
2218
static int stream_component_open(VideoState *is, int stream_index)
2219
{
2220
    AVFormatContext *ic = is->ic;
2221
    AVCodecContext *avctx;
2222
    AVCodec *codec;
2223
    SDL_AudioSpec wanted_spec, spec;
2224

    
2225
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2226
        return -1;
2227
    avctx = ic->streams[stream_index]->codec;
2228

    
2229
    /* prepare audio output */
2230
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2231
        if (avctx->channels > 0) {
2232
            avctx->request_channels = FFMIN(2, avctx->channels);
2233
        } else {
2234
            avctx->request_channels = 2;
2235
        }
2236
    }
2237

    
2238
    codec = avcodec_find_decoder(avctx->codec_id);
2239
    avctx->debug_mv = debug_mv;
2240
    avctx->debug = debug;
2241
    avctx->workaround_bugs = workaround_bugs;
2242
    avctx->lowres = lowres;
2243
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2244
    avctx->idct_algo= idct;
2245
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2246
    avctx->skip_frame= skip_frame;
2247
    avctx->skip_idct= skip_idct;
2248
    avctx->skip_loop_filter= skip_loop_filter;
2249
    avctx->error_recognition= error_recognition;
2250
    avctx->error_concealment= error_concealment;
2251
    avcodec_thread_init(avctx, thread_count);
2252

    
2253
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2254

    
2255
    if (!codec ||
2256
        avcodec_open(avctx, codec) < 0)
2257
        return -1;
2258

    
2259
    /* prepare audio output */
2260
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2261
        wanted_spec.freq = avctx->sample_rate;
2262
        wanted_spec.format = AUDIO_S16SYS;
2263
        wanted_spec.channels = avctx->channels;
2264
        wanted_spec.silence = 0;
2265
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2266
        wanted_spec.callback = sdl_audio_callback;
2267
        wanted_spec.userdata = is;
2268
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2269
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2270
            return -1;
2271
        }
2272
        is->audio_hw_buf_size = spec.size;
2273
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2274
    }
2275

    
2276
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2277
    switch(avctx->codec_type) {
2278
    case AVMEDIA_TYPE_AUDIO:
2279
        is->audio_stream = stream_index;
2280
        is->audio_st = ic->streams[stream_index];
2281
        is->audio_buf_size = 0;
2282
        is->audio_buf_index = 0;
2283

    
2284
        /* init averaging filter */
2285
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2286
        is->audio_diff_avg_count = 0;
2287
        /* since we do not have a precise anough audio fifo fullness,
2288
           we correct audio sync only if larger than this threshold */
2289
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2290

    
2291
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2292
        packet_queue_init(&is->audioq);
2293
        SDL_PauseAudio(0);
2294
        break;
2295
    case AVMEDIA_TYPE_VIDEO:
2296
        is->video_stream = stream_index;
2297
        is->video_st = ic->streams[stream_index];
2298

    
2299
//        is->video_current_pts_time = av_gettime();
2300

    
2301
        packet_queue_init(&is->videoq);
2302
        is->video_tid = SDL_CreateThread(video_thread, is);
2303
        break;
2304
    case AVMEDIA_TYPE_SUBTITLE:
2305
        is->subtitle_stream = stream_index;
2306
        is->subtitle_st = ic->streams[stream_index];
2307
        packet_queue_init(&is->subtitleq);
2308

    
2309
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2310
        break;
2311
    default:
2312
        break;
2313
    }
2314
    return 0;
2315
}
2316

    
2317
static void stream_component_close(VideoState *is, int stream_index)
2318
{
2319
    AVFormatContext *ic = is->ic;
2320
    AVCodecContext *avctx;
2321

    
2322
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2323
        return;
2324
    avctx = ic->streams[stream_index]->codec;
2325

    
2326
    switch(avctx->codec_type) {
2327
    case AVMEDIA_TYPE_AUDIO:
2328
        packet_queue_abort(&is->audioq);
2329

    
2330
        SDL_CloseAudio();
2331

    
2332
        packet_queue_end(&is->audioq);
2333
        if (is->reformat_ctx)
2334
            av_audio_convert_free(is->reformat_ctx);
2335
        is->reformat_ctx = NULL;
2336
        break;
2337
    case AVMEDIA_TYPE_VIDEO:
2338
        packet_queue_abort(&is->videoq);
2339

    
2340
        /* note: we also signal this mutex to make sure we deblock the
2341
           video thread in all cases */
2342
        SDL_LockMutex(is->pictq_mutex);
2343
        SDL_CondSignal(is->pictq_cond);
2344
        SDL_UnlockMutex(is->pictq_mutex);
2345

    
2346
        SDL_WaitThread(is->video_tid, NULL);
2347

    
2348
        packet_queue_end(&is->videoq);
2349
        break;
2350
    case AVMEDIA_TYPE_SUBTITLE:
2351
        packet_queue_abort(&is->subtitleq);
2352

    
2353
        /* note: we also signal this mutex to make sure we deblock the
2354
           video thread in all cases */
2355
        SDL_LockMutex(is->subpq_mutex);
2356
        is->subtitle_stream_changed = 1;
2357

    
2358
        SDL_CondSignal(is->subpq_cond);
2359
        SDL_UnlockMutex(is->subpq_mutex);
2360

    
2361
        SDL_WaitThread(is->subtitle_tid, NULL);
2362

    
2363
        packet_queue_end(&is->subtitleq);
2364
        break;
2365
    default:
2366
        break;
2367
    }
2368

    
2369
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2370
    avcodec_close(avctx);
2371
    switch(avctx->codec_type) {
2372
    case AVMEDIA_TYPE_AUDIO:
2373
        is->audio_st = NULL;
2374
        is->audio_stream = -1;
2375
        break;
2376
    case AVMEDIA_TYPE_VIDEO:
2377
        is->video_st = NULL;
2378
        is->video_stream = -1;
2379
        break;
2380
    case AVMEDIA_TYPE_SUBTITLE:
2381
        is->subtitle_st = NULL;
2382
        is->subtitle_stream = -1;
2383
        break;
2384
    default:
2385
        break;
2386
    }
2387
}
2388

    
2389
/* since we have only one decoding thread, we can use a global
2390
   variable instead of a thread local variable */
2391
static VideoState *global_video_state;
2392

    
2393
static int decode_interrupt_cb(void)
2394
{
2395
    return (global_video_state && global_video_state->abort_request);
2396
}
2397

    
2398
/* this thread gets the stream from the disk or the network */
2399
static int decode_thread(void *arg)
2400
{
2401
    VideoState *is = arg;
2402
    AVFormatContext *ic;
2403
    int err, i, ret;
2404
    int st_index[AVMEDIA_TYPE_NB];
2405
    AVPacket pkt1, *pkt = &pkt1;
2406
    AVFormatParameters params, *ap = &params;
2407
    int eof=0;
2408
    int pkt_in_play_range = 0;
2409

    
2410
    ic = avformat_alloc_context();
2411

    
2412
    memset(st_index, -1, sizeof(st_index));
2413
    is->video_stream = -1;
2414
    is->audio_stream = -1;
2415
    is->subtitle_stream = -1;
2416

    
2417
    global_video_state = is;
2418
    url_set_interrupt_cb(decode_interrupt_cb);
2419

    
2420
    memset(ap, 0, sizeof(*ap));
2421

    
2422
    ap->prealloced_context = 1;
2423
    ap->width = frame_width;
2424
    ap->height= frame_height;
2425
    ap->time_base= (AVRational){1, 25};
2426
    ap->pix_fmt = frame_pix_fmt;
2427

    
2428
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2429

    
2430
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2431
    if (err < 0) {
2432
        print_error(is->filename, err);
2433
        ret = -1;
2434
        goto fail;
2435
    }
2436
    is->ic = ic;
2437

    
2438
    if(genpts)
2439
        ic->flags |= AVFMT_FLAG_GENPTS;
2440

    
2441
    err = av_find_stream_info(ic);
2442
    if (err < 0) {
2443
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2444
        ret = -1;
2445
        goto fail;
2446
    }
2447
    if(ic->pb)
2448
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2449

    
2450
    if(seek_by_bytes<0)
2451
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2452

    
2453
    /* if seeking requested, we execute it */
2454
    if (start_time != AV_NOPTS_VALUE) {
2455
        int64_t timestamp;
2456

    
2457
        timestamp = start_time;
2458
        /* add the stream start time */
2459
        if (ic->start_time != AV_NOPTS_VALUE)
2460
            timestamp += ic->start_time;
2461
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2462
        if (ret < 0) {
2463
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2464
                    is->filename, (double)timestamp / AV_TIME_BASE);
2465
        }
2466
    }
2467

    
2468
    for (i = 0; i < ic->nb_streams; i++)
2469
        ic->streams[i]->discard = AVDISCARD_ALL;
2470
    if (!video_disable)
2471
        st_index[AVMEDIA_TYPE_VIDEO] =
2472
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2473
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2474
    if (!audio_disable)
2475
        st_index[AVMEDIA_TYPE_AUDIO] =
2476
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2477
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2478
                                st_index[AVMEDIA_TYPE_VIDEO],
2479
                                NULL, 0);
2480
    if (!video_disable)
2481
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2482
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2483
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2484
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2485
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2486
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2487
                                NULL, 0);
2488
    if (show_status) {
2489
        dump_format(ic, 0, is->filename, 0);
2490
    }
2491

    
2492
    /* open the streams */
2493
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2494
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2495
    }
2496

    
2497
    ret=-1;
2498
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2499
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2500
    }
2501
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2502
    if(ret<0) {
2503
        if (!display_disable)
2504
            is->show_audio = 2;
2505
    }
2506

    
2507
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2508
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2509
    }
2510

    
2511
    if (is->video_stream < 0 && is->audio_stream < 0) {
2512
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2513
        ret = -1;
2514
        goto fail;
2515
    }
2516

    
2517
    for(;;) {
2518
        if (is->abort_request)
2519
            break;
2520
        if (is->paused != is->last_paused) {
2521
            is->last_paused = is->paused;
2522
            if (is->paused)
2523
                is->read_pause_return= av_read_pause(ic);
2524
            else
2525
                av_read_play(ic);
2526
        }
2527
#if CONFIG_RTSP_DEMUXER
2528
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2529
            /* wait 10 ms to avoid trying to get another packet */
2530
            /* XXX: horrible */
2531
            SDL_Delay(10);
2532
            continue;
2533
        }
2534
#endif
2535
        if (is->seek_req) {
2536
            int64_t seek_target= is->seek_pos;
2537
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2538
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2539
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2540
//      of the seek_pos/seek_rel variables
2541

    
2542
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2543
            if (ret < 0) {
2544
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2545
            }else{
2546
                if (is->audio_stream >= 0) {
2547
                    packet_queue_flush(&is->audioq);
2548
                    packet_queue_put(&is->audioq, &flush_pkt);
2549
                }
2550
                if (is->subtitle_stream >= 0) {
2551
                    packet_queue_flush(&is->subtitleq);
2552
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2553
                }
2554
                if (is->video_stream >= 0) {
2555
                    packet_queue_flush(&is->videoq);
2556
                    packet_queue_put(&is->videoq, &flush_pkt);
2557
                }
2558
            }
2559
            is->seek_req = 0;
2560
            eof= 0;
2561
        }
2562

    
2563
        /* if the queue are full, no need to read more */
2564
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2565
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2566
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2567
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2568
            /* wait 10 ms */
2569
            SDL_Delay(10);
2570
            continue;
2571
        }
2572
        if(eof) {
2573
            if(is->video_stream >= 0){
2574
                av_init_packet(pkt);
2575
                pkt->data=NULL;
2576
                pkt->size=0;
2577
                pkt->stream_index= is->video_stream;
2578
                packet_queue_put(&is->videoq, pkt);
2579
            }
2580
            SDL_Delay(10);
2581
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2582
                if(loop!=1 && (!loop || --loop)){
2583
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2584
                }else if(autoexit){
2585
                    ret=AVERROR_EOF;
2586
                    goto fail;
2587
                }
2588
            }
2589
            continue;
2590
        }
2591
        ret = av_read_frame(ic, pkt);
2592
        if (ret < 0) {
2593
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2594
                eof=1;
2595
            if (url_ferror(ic->pb))
2596
                break;
2597
            SDL_Delay(100); /* wait for user event */
2598
            continue;
2599
        }
2600
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2601
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2602
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2603
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2604
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2605
                <= ((double)duration/1000000);
2606
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2607
            packet_queue_put(&is->audioq, pkt);
2608
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2609
            packet_queue_put(&is->videoq, pkt);
2610
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2611
            packet_queue_put(&is->subtitleq, pkt);
2612
        } else {
2613
            av_free_packet(pkt);
2614
        }
2615
    }
2616
    /* wait until the end */
2617
    while (!is->abort_request) {
2618
        SDL_Delay(100);
2619
    }
2620

    
2621
    ret = 0;
2622
 fail:
2623
    /* disable interrupting */
2624
    global_video_state = NULL;
2625

    
2626
    /* close each stream */
2627
    if (is->audio_stream >= 0)
2628
        stream_component_close(is, is->audio_stream);
2629
    if (is->video_stream >= 0)
2630
        stream_component_close(is, is->video_stream);
2631
    if (is->subtitle_stream >= 0)
2632
        stream_component_close(is, is->subtitle_stream);
2633
    if (is->ic) {
2634
        av_close_input_file(is->ic);
2635
        is->ic = NULL; /* safety */
2636
    }
2637
    url_set_interrupt_cb(NULL);
2638

    
2639
    if (ret != 0) {
2640
        SDL_Event event;
2641

    
2642
        event.type = FF_QUIT_EVENT;
2643
        event.user.data1 = is;
2644
        SDL_PushEvent(&event);
2645
    }
2646
    return 0;
2647
}
2648

    
2649
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2650
{
2651
    VideoState *is;
2652

    
2653
    is = av_mallocz(sizeof(VideoState));
2654
    if (!is)
2655
        return NULL;
2656
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2657
    is->iformat = iformat;
2658
    is->ytop = 0;
2659
    is->xleft = 0;
2660

    
2661
    /* start video display */
2662
    is->pictq_mutex = SDL_CreateMutex();
2663
    is->pictq_cond = SDL_CreateCond();
2664

    
2665
    is->subpq_mutex = SDL_CreateMutex();
2666
    is->subpq_cond = SDL_CreateCond();
2667

    
2668
    is->av_sync_type = av_sync_type;
2669
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2670
    if (!is->parse_tid) {
2671
        av_free(is);
2672
        return NULL;
2673
    }
2674
    return is;
2675
}
2676

    
2677
static void stream_cycle_channel(VideoState *is, int codec_type)
2678
{
2679
    AVFormatContext *ic = is->ic;
2680
    int start_index, stream_index;
2681
    AVStream *st;
2682

    
2683
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2684
        start_index = is->video_stream;
2685
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2686
        start_index = is->audio_stream;
2687
    else
2688
        start_index = is->subtitle_stream;
2689
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2690
        return;
2691
    stream_index = start_index;
2692
    for(;;) {
2693
        if (++stream_index >= is->ic->nb_streams)
2694
        {
2695
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2696
            {
2697
                stream_index = -1;
2698
                goto the_end;
2699
            } else
2700
                stream_index = 0;
2701
        }
2702
        if (stream_index == start_index)
2703
            return;
2704
        st = ic->streams[stream_index];
2705
        if (st->codec->codec_type == codec_type) {
2706
            /* check that parameters are OK */
2707
            switch(codec_type) {
2708
            case AVMEDIA_TYPE_AUDIO:
2709
                if (st->codec->sample_rate != 0 &&
2710
                    st->codec->channels != 0)
2711
                    goto the_end;
2712
                break;
2713
            case AVMEDIA_TYPE_VIDEO:
2714
            case AVMEDIA_TYPE_SUBTITLE:
2715
                goto the_end;
2716
            default:
2717
                break;
2718
            }
2719
        }
2720
    }
2721
 the_end:
2722
    stream_component_close(is, start_index);
2723
    stream_component_open(is, stream_index);
2724
}
2725

    
2726

    
2727
static void toggle_full_screen(void)
2728
{
2729
    is_full_screen = !is_full_screen;
2730
    if (!fs_screen_width) {
2731
        /* use default SDL method */
2732
//        SDL_WM_ToggleFullScreen(screen);
2733
    }
2734
    video_open(cur_stream);
2735
}
2736

    
2737
static void toggle_pause(void)
2738
{
2739
    if (cur_stream)
2740
        stream_pause(cur_stream);
2741
    step = 0;
2742
}
2743

    
2744
static void step_to_next_frame(void)
2745
{
2746
    if (cur_stream) {
2747
        /* if the stream is paused unpause it, then step */
2748
        if (cur_stream->paused)
2749
            stream_pause(cur_stream);
2750
    }
2751
    step = 1;
2752
}
2753

    
2754
static void toggle_audio_display(void)
2755
{
2756
    if (cur_stream) {
2757
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2758
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2759
        fill_rectangle(screen,
2760
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2761
                    bgcolor);
2762
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2763
    }
2764
}
2765

    
2766
/* handle an event sent by the GUI */
2767
static void event_loop(void)
2768
{
2769
    SDL_Event event;
2770
    double incr, pos, frac;
2771

    
2772
    for(;;) {
2773
        double x;
2774
        SDL_WaitEvent(&event);
2775
        switch(event.type) {
2776
        case SDL_KEYDOWN:
2777
            if (exit_on_keydown) {
2778
                do_exit();
2779
                break;
2780
            }
2781
            switch(event.key.keysym.sym) {
2782
            case SDLK_ESCAPE:
2783
            case SDLK_q:
2784
                do_exit();
2785
                break;
2786
            case SDLK_f:
2787
                toggle_full_screen();
2788
                break;
2789
            case SDLK_p:
2790
            case SDLK_SPACE:
2791
                toggle_pause();
2792
                break;
2793
            case SDLK_s: //S: Step to next frame
2794
                step_to_next_frame();
2795
                break;
2796
            case SDLK_a:
2797
                if (cur_stream)
2798
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2799
                break;
2800
            case SDLK_v:
2801
                if (cur_stream)
2802
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2803
                break;
2804
            case SDLK_t:
2805
                if (cur_stream)
2806
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2807
                break;
2808
            case SDLK_w:
2809
                toggle_audio_display();
2810
                break;
2811
            case SDLK_LEFT:
2812
                incr = -10.0;
2813
                goto do_seek;
2814
            case SDLK_RIGHT:
2815
                incr = 10.0;
2816
                goto do_seek;
2817
            case SDLK_UP:
2818
                incr = 60.0;
2819
                goto do_seek;
2820
            case SDLK_DOWN:
2821
                incr = -60.0;
2822
            do_seek:
2823
                if (cur_stream) {
2824
                    if (seek_by_bytes) {
2825
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2826
                            pos= cur_stream->video_current_pos;
2827
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2828
                            pos= cur_stream->audio_pkt.pos;
2829
                        }else
2830
                            pos = url_ftell(cur_stream->ic->pb);
2831
                        if (cur_stream->ic->bit_rate)
2832
                            incr *= cur_stream->ic->bit_rate / 8.0;
2833
                        else
2834
                            incr *= 180000.0;
2835
                        pos += incr;
2836
                        stream_seek(cur_stream, pos, incr, 1);
2837
                    } else {
2838
                        pos = get_master_clock(cur_stream);
2839
                        pos += incr;
2840
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2841
                    }
2842
                }
2843
                break;
2844
            default:
2845
                break;
2846
            }
2847
            break;
2848
        case SDL_MOUSEBUTTONDOWN:
2849
            if (exit_on_mousedown) {
2850
                do_exit();
2851
                break;
2852
            }
2853
        case SDL_MOUSEMOTION:
2854
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2855
                x= event.button.x;
2856
            }else{
2857
                if(event.motion.state != SDL_PRESSED)
2858
                    break;
2859
                x= event.motion.x;
2860
            }
2861
            if (cur_stream) {
2862
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2863
                    uint64_t size=  url_fsize(cur_stream->ic->pb);
2864
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2865
                }else{
2866
                    int64_t ts;
2867
                    int ns, hh, mm, ss;
2868
                    int tns, thh, tmm, tss;
2869
                    tns = cur_stream->ic->duration/1000000LL;
2870
                    thh = tns/3600;
2871
                    tmm = (tns%3600)/60;
2872
                    tss = (tns%60);
2873
                    frac = x/cur_stream->width;
2874
                    ns = frac*tns;
2875
                    hh = ns/3600;
2876
                    mm = (ns%3600)/60;
2877
                    ss = (ns%60);
2878
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2879
                            hh, mm, ss, thh, tmm, tss);
2880
                    ts = frac*cur_stream->ic->duration;
2881
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2882
                        ts += cur_stream->ic->start_time;
2883
                    stream_seek(cur_stream, ts, 0, 0);
2884
                }
2885
            }
2886
            break;
2887
        case SDL_VIDEORESIZE:
2888
            if (cur_stream) {
2889
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2890
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2891
                screen_width = cur_stream->width = event.resize.w;
2892
                screen_height= cur_stream->height= event.resize.h;
2893
            }
2894
            break;
2895
        case SDL_QUIT:
2896
        case FF_QUIT_EVENT:
2897
            do_exit();
2898
            break;
2899
        case FF_ALLOC_EVENT:
2900
            video_open(event.user.data1);
2901
            alloc_picture(event.user.data1);
2902
            break;
2903
        case FF_REFRESH_EVENT:
2904
            video_refresh_timer(event.user.data1);
2905
            cur_stream->refresh=0;
2906
            break;
2907
        default:
2908
            break;
2909
        }
2910
    }
2911
}
2912

    
2913
static void opt_frame_size(const char *arg)
2914
{
2915
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2916
        fprintf(stderr, "Incorrect frame size\n");
2917
        exit(1);
2918
    }
2919
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2920
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2921
        exit(1);
2922
    }
2923
}
2924

    
2925
static int opt_width(const char *opt, const char *arg)
2926
{
2927
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2928
    return 0;
2929
}
2930

    
2931
static int opt_height(const char *opt, const char *arg)
2932
{
2933
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2934
    return 0;
2935
}
2936

    
2937
static void opt_format(const char *arg)
2938
{
2939
    file_iformat = av_find_input_format(arg);
2940
    if (!file_iformat) {
2941
        fprintf(stderr, "Unknown input format: %s\n", arg);
2942
        exit(1);
2943
    }
2944
}
2945

    
2946
static void opt_frame_pix_fmt(const char *arg)
2947
{
2948
    frame_pix_fmt = av_get_pix_fmt(arg);
2949
}
2950

    
2951
static int opt_sync(const char *opt, const char *arg)
2952
{
2953
    if (!strcmp(arg, "audio"))
2954
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2955
    else if (!strcmp(arg, "video"))
2956
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2957
    else if (!strcmp(arg, "ext"))
2958
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2959
    else {
2960
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2961
        exit(1);
2962
    }
2963
    return 0;
2964
}
2965

    
2966
static int opt_seek(const char *opt, const char *arg)
2967
{
2968
    start_time = parse_time_or_die(opt, arg, 1);
2969
    return 0;
2970
}
2971

    
2972
static int opt_duration(const char *opt, const char *arg)
2973
{
2974
    duration = parse_time_or_die(opt, arg, 1);
2975
    return 0;
2976
}
2977

    
2978
static int opt_debug(const char *opt, const char *arg)
2979
{
2980
    av_log_set_level(99);
2981
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2982
    return 0;
2983
}
2984

    
2985
static int opt_vismv(const char *opt, const char *arg)
2986
{
2987
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2988
    return 0;
2989
}
2990

    
2991
static int opt_thread_count(const char *opt, const char *arg)
2992
{
2993
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2994
#if !HAVE_THREADS
2995
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2996
#endif
2997
    return 0;
2998
}
2999

    
3000
static const OptionDef options[] = {
3001
#include "cmdutils_common_opts.h"
3002
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3003
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3004
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3005
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3006
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3007
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3008
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3009
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3010
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3011
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3012
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3013
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3014
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3015
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3016
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3017
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3018
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3019
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3020
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3021
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3022
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3023
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3024
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3025
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3026
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3027
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3028
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3029
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3030
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3031
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3032
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3033
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3034
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3035
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3036
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3037
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3038
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3039
#if CONFIG_AVFILTER
3040
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3041
#endif
3042
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3043
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3044
    { NULL, },
3045
};
3046

    
3047
static void show_usage(void)
3048
{
3049
    printf("Simple media player\n");
3050
    printf("usage: ffplay [options] input_file\n");
3051
    printf("\n");
3052
}
3053

    
3054
static void show_help(void)
3055
{
3056
    av_log_set_callback(log_callback_help);
3057
    show_usage();
3058
    show_help_options(options, "Main options:\n",
3059
                      OPT_EXPERT, 0);
3060
    show_help_options(options, "\nAdvanced options:\n",
3061
                      OPT_EXPERT, OPT_EXPERT);
3062
    printf("\n");
3063
    av_opt_show2(avcodec_opts[0], NULL,
3064
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3065
    printf("\n");
3066
    av_opt_show2(avformat_opts, NULL,
3067
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3068
#if !CONFIG_AVFILTER
3069
    printf("\n");
3070
    av_opt_show2(sws_opts, NULL,
3071
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3072
#endif
3073
    printf("\nWhile playing:\n"
3074
           "q, ESC              quit\n"
3075
           "f                   toggle full screen\n"
3076
           "p, SPC              pause\n"
3077
           "a                   cycle audio channel\n"
3078
           "v                   cycle video channel\n"
3079
           "t                   cycle subtitle channel\n"
3080
           "w                   show audio waves\n"
3081
           "s                   activate frame-step mode\n"
3082
           "left/right          seek backward/forward 10 seconds\n"
3083
           "down/up             seek backward/forward 1 minute\n"
3084
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3085
           );
3086
}
3087

    
3088
static void opt_input_file(const char *filename)
3089
{
3090
    if (input_filename) {
3091
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3092
                filename, input_filename);
3093
        exit(1);
3094
    }
3095
    if (!strcmp(filename, "-"))
3096
        filename = "pipe:";
3097
    input_filename = filename;
3098
}
3099

    
3100
/* Called from the main */
3101
int main(int argc, char **argv)
3102
{
3103
    int flags;
3104

    
3105
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3106

    
3107
    /* register all codecs, demux and protocols */
3108
    avcodec_register_all();
3109
#if CONFIG_AVDEVICE
3110
    avdevice_register_all();
3111
#endif
3112
#if CONFIG_AVFILTER
3113
    avfilter_register_all();
3114
#endif
3115
    av_register_all();
3116

    
3117
    init_opts();
3118

    
3119
    show_banner();
3120

    
3121
    parse_options(argc, argv, options, opt_input_file);
3122

    
3123
    if (!input_filename) {
3124
        show_usage();
3125
        fprintf(stderr, "An input file must be specified\n");
3126
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3127
        exit(1);
3128
    }
3129

    
3130
    if (display_disable) {
3131
        video_disable = 1;
3132
    }
3133
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3134
#if !defined(__MINGW32__) && !defined(__APPLE__)
3135
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3136
#endif
3137
    if (SDL_Init (flags)) {
3138
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3139
        exit(1);
3140
    }
3141

    
3142
    if (!display_disable) {
3143
#if HAVE_SDL_VIDEO_SIZE
3144
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3145
        fs_screen_width = vi->current_w;
3146
        fs_screen_height = vi->current_h;
3147
#endif
3148
    }
3149

    
3150
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3151
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3152
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3153

    
3154
    av_init_packet(&flush_pkt);
3155
    flush_pkt.data= "FLUSH";
3156

    
3157
    cur_stream = stream_open(input_filename, file_iformat);
3158

    
3159
    event_loop();
3160

    
3161
    /* never returns */
3162

    
3163
    return 0;
3164
}