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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)
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#define MIN_FRAMES 5
67

    
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/* 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 */
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#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
    len1 = avcodec_decode_video2(is->video_st->codec,
1574
                                 frame, &got_picture,
1575
                                 pkt);
1576

    
1577
    if (got_picture) {
1578
        if (decoder_reorder_pts == -1) {
1579
            *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, pkt->dts);
1580
        } else if (decoder_reorder_pts) {
1581
            *pts = frame->pkt_pts;
1582
        } else {
1583
            *pts = pkt->dts;
1584
        }
1585

    
1586
        if (*pts == AV_NOPTS_VALUE) {
1587
            *pts = 0;
1588
        }
1589

    
1590
        is->skip_frames_index += 1;
1591
        if(is->skip_frames_index >= is->skip_frames){
1592
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1593
            return 1;
1594
        }
1595

    
1596
    }
1597
    return 0;
1598
}
1599

    
1600
#if CONFIG_AVFILTER
1601
typedef struct {
1602
    VideoState *is;
1603
    AVFrame *frame;
1604
    int use_dr1;
1605
} FilterPriv;
1606

    
1607
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1608
{
1609
    AVFilterContext *ctx = codec->opaque;
1610
    AVFilterBufferRef  *ref;
1611
    int perms = AV_PERM_WRITE;
1612
    int i, w, h, stride[4];
1613
    unsigned edge;
1614

    
1615
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1616
        perms |= AV_PERM_NEG_LINESIZES;
1617

    
1618
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1619
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1620
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1621
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1622
    }
1623
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1624

    
1625
    w = codec->width;
1626
    h = codec->height;
1627
    avcodec_align_dimensions2(codec, &w, &h, stride);
1628
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1629
    w += edge << 1;
1630
    h += edge << 1;
1631

    
1632
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1633
        return -1;
1634

    
1635
    ref->video->w = codec->width;
1636
    ref->video->h = codec->height;
1637
    for(i = 0; i < 4; i ++) {
1638
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1639
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1640

    
1641
        if (ref->data[i]) {
1642
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1643
        }
1644
        pic->data[i]     = ref->data[i];
1645
        pic->linesize[i] = ref->linesize[i];
1646
    }
1647
    pic->opaque = ref;
1648
    pic->age    = INT_MAX;
1649
    pic->type   = FF_BUFFER_TYPE_USER;
1650
    pic->reordered_opaque = codec->reordered_opaque;
1651
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1652
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1653
    return 0;
1654
}
1655

    
1656
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1657
{
1658
    memset(pic->data, 0, sizeof(pic->data));
1659
    avfilter_unref_buffer(pic->opaque);
1660
}
1661

    
1662
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1663
{
1664
    AVFilterBufferRef *ref = pic->opaque;
1665

    
1666
    if (pic->data[0] == NULL) {
1667
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1668
        return codec->get_buffer(codec, pic);
1669
    }
1670

    
1671
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1672
        (codec->pix_fmt != ref->format)) {
1673
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1674
        return -1;
1675
    }
1676

    
1677
    pic->reordered_opaque = codec->reordered_opaque;
1678
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1679
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1680
    return 0;
1681
}
1682

    
1683
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1684
{
1685
    FilterPriv *priv = ctx->priv;
1686
    AVCodecContext *codec;
1687
    if(!opaque) return -1;
1688

    
1689
    priv->is = opaque;
1690
    codec    = priv->is->video_st->codec;
1691
    codec->opaque = ctx;
1692
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1693
        priv->use_dr1 = 1;
1694
        codec->get_buffer     = input_get_buffer;
1695
        codec->release_buffer = input_release_buffer;
1696
        codec->reget_buffer   = input_reget_buffer;
1697
    }
1698

    
1699
    priv->frame = avcodec_alloc_frame();
1700

    
1701
    return 0;
1702
}
1703

    
1704
static void input_uninit(AVFilterContext *ctx)
1705
{
1706
    FilterPriv *priv = ctx->priv;
1707
    av_free(priv->frame);
1708
}
1709

    
1710
static int input_request_frame(AVFilterLink *link)
1711
{
1712
    FilterPriv *priv = link->src->priv;
1713
    AVFilterBufferRef *picref;
1714
    int64_t pts = 0;
1715
    AVPacket pkt;
1716
    int ret;
1717

    
1718
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1719
        av_free_packet(&pkt);
1720
    if (ret < 0)
1721
        return -1;
1722

    
1723
    if(priv->use_dr1) {
1724
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1725
    } else {
1726
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1727
        av_image_copy(picref->data, picref->linesize,
1728
                      priv->frame->data, priv->frame->linesize,
1729
                      picref->format, link->w, link->h);
1730
    }
1731
    av_free_packet(&pkt);
1732

    
1733
    picref->pts = pts;
1734
    picref->pos = pkt.pos;
1735
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1736
    avfilter_start_frame(link, picref);
1737
    avfilter_draw_slice(link, 0, link->h, 1);
1738
    avfilter_end_frame(link);
1739

    
1740
    return 0;
1741
}
1742

    
1743
static int input_query_formats(AVFilterContext *ctx)
1744
{
1745
    FilterPriv *priv = ctx->priv;
1746
    enum PixelFormat pix_fmts[] = {
1747
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1748
    };
1749

    
1750
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1751
    return 0;
1752
}
1753

    
1754
static int input_config_props(AVFilterLink *link)
1755
{
1756
    FilterPriv *priv  = link->src->priv;
1757
    AVCodecContext *c = priv->is->video_st->codec;
1758

    
1759
    link->w = c->width;
1760
    link->h = c->height;
1761
    link->time_base = priv->is->video_st->time_base;
1762

    
1763
    return 0;
1764
}
1765

    
1766
static AVFilter input_filter =
1767
{
1768
    .name      = "ffplay_input",
1769

    
1770
    .priv_size = sizeof(FilterPriv),
1771

    
1772
    .init      = input_init,
1773
    .uninit    = input_uninit,
1774

    
1775
    .query_formats = input_query_formats,
1776

    
1777
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1778
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1779
                                    .type = AVMEDIA_TYPE_VIDEO,
1780
                                    .request_frame = input_request_frame,
1781
                                    .config_props  = input_config_props, },
1782
                                  { .name = NULL }},
1783
};
1784

    
1785
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1786
{
1787
    char sws_flags_str[128];
1788
    int ret;
1789
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1790
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1791
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1792
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1793

    
1794
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1795
                                            NULL, is, graph)) < 0)
1796
        goto the_end;
1797
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1798
                                            NULL, &ffsink_ctx, graph)) < 0)
1799
        goto the_end;
1800

    
1801
    if(vfilters) {
1802
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1803
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1804

    
1805
        outputs->name    = av_strdup("in");
1806
        outputs->filter_ctx = filt_src;
1807
        outputs->pad_idx = 0;
1808
        outputs->next    = NULL;
1809

    
1810
        inputs->name    = av_strdup("out");
1811
        inputs->filter_ctx = filt_out;
1812
        inputs->pad_idx = 0;
1813
        inputs->next    = NULL;
1814

    
1815
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1816
            goto the_end;
1817
        av_freep(&vfilters);
1818
    } else {
1819
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1820
            goto the_end;
1821
    }
1822

    
1823
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1824
        goto the_end;
1825

    
1826
    is->out_video_filter = filt_out;
1827
the_end:
1828
    return ret;
1829
}
1830

    
1831
#endif  /* CONFIG_AVFILTER */
1832

    
1833
static int video_thread(void *arg)
1834
{
1835
    VideoState *is = arg;
1836
    AVFrame *frame= avcodec_alloc_frame();
1837
    int64_t pts_int;
1838
    double pts;
1839
    int ret;
1840

    
1841
#if CONFIG_AVFILTER
1842
    AVFilterGraph *graph = avfilter_graph_alloc();
1843
    AVFilterContext *filt_out = NULL;
1844
    int64_t pos;
1845

    
1846
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1847
        goto the_end;
1848
    filt_out = is->out_video_filter;
1849
#endif
1850

    
1851
    for(;;) {
1852
#if !CONFIG_AVFILTER
1853
        AVPacket pkt;
1854
#else
1855
        AVFilterBufferRef *picref;
1856
        AVRational tb;
1857
#endif
1858
        while (is->paused && !is->videoq.abort_request)
1859
            SDL_Delay(10);
1860
#if CONFIG_AVFILTER
1861
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1862
        if (picref) {
1863
            pts_int = picref->pts;
1864
            pos     = picref->pos;
1865
            frame->opaque = picref;
1866
        }
1867

    
1868
        if (av_cmp_q(tb, is->video_st->time_base)) {
1869
            av_unused int64_t pts1 = pts_int;
1870
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1871
            av_dlog(NULL, "video_thread(): "
1872
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1873
                    tb.num, tb.den, pts1,
1874
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1875
        }
1876
#else
1877
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1878
#endif
1879

    
1880
        if (ret < 0) goto the_end;
1881

    
1882
        if (!ret)
1883
            continue;
1884

    
1885
        pts = pts_int*av_q2d(is->video_st->time_base);
1886

    
1887
#if CONFIG_AVFILTER
1888
        ret = output_picture2(is, frame, pts, pos);
1889
#else
1890
        ret = output_picture2(is, frame, pts,  pkt.pos);
1891
        av_free_packet(&pkt);
1892
#endif
1893
        if (ret < 0)
1894
            goto the_end;
1895

    
1896
        if (step)
1897
            if (cur_stream)
1898
                stream_pause(cur_stream);
1899
    }
1900
 the_end:
1901
#if CONFIG_AVFILTER
1902
    avfilter_graph_free(&graph);
1903
#endif
1904
    av_free(frame);
1905
    return 0;
1906
}
1907

    
1908
static int subtitle_thread(void *arg)
1909
{
1910
    VideoState *is = arg;
1911
    SubPicture *sp;
1912
    AVPacket pkt1, *pkt = &pkt1;
1913
    int len1, got_subtitle;
1914
    double pts;
1915
    int i, j;
1916
    int r, g, b, y, u, v, a;
1917

    
1918
    for(;;) {
1919
        while (is->paused && !is->subtitleq.abort_request) {
1920
            SDL_Delay(10);
1921
        }
1922
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1923
            break;
1924

    
1925
        if(pkt->data == flush_pkt.data){
1926
            avcodec_flush_buffers(is->subtitle_st->codec);
1927
            continue;
1928
        }
1929
        SDL_LockMutex(is->subpq_mutex);
1930
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1931
               !is->subtitleq.abort_request) {
1932
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1933
        }
1934
        SDL_UnlockMutex(is->subpq_mutex);
1935

    
1936
        if (is->subtitleq.abort_request)
1937
            goto the_end;
1938

    
1939
        sp = &is->subpq[is->subpq_windex];
1940

    
1941
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1942
           this packet, if any */
1943
        pts = 0;
1944
        if (pkt->pts != AV_NOPTS_VALUE)
1945
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1946

    
1947
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1948
                                    &sp->sub, &got_subtitle,
1949
                                    pkt);
1950
//            if (len1 < 0)
1951
//                break;
1952
        if (got_subtitle && sp->sub.format == 0) {
1953
            sp->pts = pts;
1954

    
1955
            for (i = 0; i < sp->sub.num_rects; i++)
1956
            {
1957
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1958
                {
1959
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1960
                    y = RGB_TO_Y_CCIR(r, g, b);
1961
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1962
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1963
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1964
                }
1965
            }
1966

    
1967
            /* now we can update the picture count */
1968
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1969
                is->subpq_windex = 0;
1970
            SDL_LockMutex(is->subpq_mutex);
1971
            is->subpq_size++;
1972
            SDL_UnlockMutex(is->subpq_mutex);
1973
        }
1974
        av_free_packet(pkt);
1975
//        if (step)
1976
//            if (cur_stream)
1977
//                stream_pause(cur_stream);
1978
    }
1979
 the_end:
1980
    return 0;
1981
}
1982

    
1983
/* copy samples for viewing in editor window */
1984
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1985
{
1986
    int size, len, channels;
1987

    
1988
    channels = is->audio_st->codec->channels;
1989

    
1990
    size = samples_size / sizeof(short);
1991
    while (size > 0) {
1992
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1993
        if (len > size)
1994
            len = size;
1995
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1996
        samples += len;
1997
        is->sample_array_index += len;
1998
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1999
            is->sample_array_index = 0;
2000
        size -= len;
2001
    }
2002
}
2003

    
2004
/* return the new audio buffer size (samples can be added or deleted
2005
   to get better sync if video or external master clock) */
2006
static int synchronize_audio(VideoState *is, short *samples,
2007
                             int samples_size1, double pts)
2008
{
2009
    int n, samples_size;
2010
    double ref_clock;
2011

    
2012
    n = 2 * is->audio_st->codec->channels;
2013
    samples_size = samples_size1;
2014

    
2015
    /* if not master, then we try to remove or add samples to correct the clock */
2016
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2017
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2018
        double diff, avg_diff;
2019
        int wanted_size, min_size, max_size, nb_samples;
2020

    
2021
        ref_clock = get_master_clock(is);
2022
        diff = get_audio_clock(is) - ref_clock;
2023

    
2024
        if (diff < AV_NOSYNC_THRESHOLD) {
2025
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2026
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2027
                /* not enough measures to have a correct estimate */
2028
                is->audio_diff_avg_count++;
2029
            } else {
2030
                /* estimate the A-V difference */
2031
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2032

    
2033
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2034
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2035
                    nb_samples = samples_size / n;
2036

    
2037
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2038
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2039
                    if (wanted_size < min_size)
2040
                        wanted_size = min_size;
2041
                    else if (wanted_size > max_size)
2042
                        wanted_size = max_size;
2043

    
2044
                    /* add or remove samples to correction the synchro */
2045
                    if (wanted_size < samples_size) {
2046
                        /* remove samples */
2047
                        samples_size = wanted_size;
2048
                    } else if (wanted_size > samples_size) {
2049
                        uint8_t *samples_end, *q;
2050
                        int nb;
2051

    
2052
                        /* add samples */
2053
                        nb = (samples_size - wanted_size);
2054
                        samples_end = (uint8_t *)samples + samples_size - n;
2055
                        q = samples_end + n;
2056
                        while (nb > 0) {
2057
                            memcpy(q, samples_end, n);
2058
                            q += n;
2059
                            nb -= n;
2060
                        }
2061
                        samples_size = wanted_size;
2062
                    }
2063
                }
2064
#if 0
2065
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2066
                       diff, avg_diff, samples_size - samples_size1,
2067
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2068
#endif
2069
            }
2070
        } else {
2071
            /* too big difference : may be initial PTS errors, so
2072
               reset A-V filter */
2073
            is->audio_diff_avg_count = 0;
2074
            is->audio_diff_cum = 0;
2075
        }
2076
    }
2077

    
2078
    return samples_size;
2079
}
2080

    
2081
/* decode one audio frame and returns its uncompressed size */
2082
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2083
{
2084
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2085
    AVPacket *pkt = &is->audio_pkt;
2086
    AVCodecContext *dec= is->audio_st->codec;
2087
    int n, len1, data_size;
2088
    double pts;
2089

    
2090
    for(;;) {
2091
        /* NOTE: the audio packet can contain several frames */
2092
        while (pkt_temp->size > 0) {
2093
            data_size = sizeof(is->audio_buf1);
2094
            len1 = avcodec_decode_audio3(dec,
2095
                                        (int16_t *)is->audio_buf1, &data_size,
2096
                                        pkt_temp);
2097
            if (len1 < 0) {
2098
                /* if error, we skip the frame */
2099
                pkt_temp->size = 0;
2100
                break;
2101
            }
2102

    
2103
            pkt_temp->data += len1;
2104
            pkt_temp->size -= len1;
2105
            if (data_size <= 0)
2106
                continue;
2107

    
2108
            if (dec->sample_fmt != is->audio_src_fmt) {
2109
                if (is->reformat_ctx)
2110
                    av_audio_convert_free(is->reformat_ctx);
2111
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2112
                                                         dec->sample_fmt, 1, NULL, 0);
2113
                if (!is->reformat_ctx) {
2114
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2115
                        av_get_sample_fmt_name(dec->sample_fmt),
2116
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2117
                        break;
2118
                }
2119
                is->audio_src_fmt= dec->sample_fmt;
2120
            }
2121

    
2122
            if (is->reformat_ctx) {
2123
                const void *ibuf[6]= {is->audio_buf1};
2124
                void *obuf[6]= {is->audio_buf2};
2125
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2126
                int ostride[6]= {2};
2127
                int len= data_size/istride[0];
2128
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2129
                    printf("av_audio_convert() failed\n");
2130
                    break;
2131
                }
2132
                is->audio_buf= is->audio_buf2;
2133
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2134
                          remove this legacy cruft */
2135
                data_size= len*2;
2136
            }else{
2137
                is->audio_buf= is->audio_buf1;
2138
            }
2139

    
2140
            /* if no pts, then compute it */
2141
            pts = is->audio_clock;
2142
            *pts_ptr = pts;
2143
            n = 2 * dec->channels;
2144
            is->audio_clock += (double)data_size /
2145
                (double)(n * dec->sample_rate);
2146
#if defined(DEBUG_SYNC)
2147
            {
2148
                static double last_clock;
2149
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2150
                       is->audio_clock - last_clock,
2151
                       is->audio_clock, pts);
2152
                last_clock = is->audio_clock;
2153
            }
2154
#endif
2155
            return data_size;
2156
        }
2157

    
2158
        /* free the current packet */
2159
        if (pkt->data)
2160
            av_free_packet(pkt);
2161

    
2162
        if (is->paused || is->audioq.abort_request) {
2163
            return -1;
2164
        }
2165

    
2166
        /* read next packet */
2167
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2168
            return -1;
2169
        if(pkt->data == flush_pkt.data){
2170
            avcodec_flush_buffers(dec);
2171
            continue;
2172
        }
2173

    
2174
        pkt_temp->data = pkt->data;
2175
        pkt_temp->size = pkt->size;
2176

    
2177
        /* if update the audio clock with the pts */
2178
        if (pkt->pts != AV_NOPTS_VALUE) {
2179
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2180
        }
2181
    }
2182
}
2183

    
2184
/* get the current audio output buffer size, in samples. With SDL, we
2185
   cannot have a precise information */
2186
static int audio_write_get_buf_size(VideoState *is)
2187
{
2188
    return is->audio_buf_size - is->audio_buf_index;
2189
}
2190

    
2191

    
2192
/* prepare a new audio buffer */
2193
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2194
{
2195
    VideoState *is = opaque;
2196
    int audio_size, len1;
2197
    double pts;
2198

    
2199
    audio_callback_time = av_gettime();
2200

    
2201
    while (len > 0) {
2202
        if (is->audio_buf_index >= is->audio_buf_size) {
2203
           audio_size = audio_decode_frame(is, &pts);
2204
           if (audio_size < 0) {
2205
                /* if error, just output silence */
2206
               is->audio_buf = is->audio_buf1;
2207
               is->audio_buf_size = 1024;
2208
               memset(is->audio_buf, 0, is->audio_buf_size);
2209
           } else {
2210
               if (is->show_audio)
2211
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2212
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2213
                                              pts);
2214
               is->audio_buf_size = audio_size;
2215
           }
2216
           is->audio_buf_index = 0;
2217
        }
2218
        len1 = is->audio_buf_size - is->audio_buf_index;
2219
        if (len1 > len)
2220
            len1 = len;
2221
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2222
        len -= len1;
2223
        stream += len1;
2224
        is->audio_buf_index += len1;
2225
    }
2226
}
2227

    
2228
/* open a given stream. Return 0 if OK */
2229
static int stream_component_open(VideoState *is, int stream_index)
2230
{
2231
    AVFormatContext *ic = is->ic;
2232
    AVCodecContext *avctx;
2233
    AVCodec *codec;
2234
    SDL_AudioSpec wanted_spec, spec;
2235

    
2236
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2237
        return -1;
2238
    avctx = ic->streams[stream_index]->codec;
2239

    
2240
    /* prepare audio output */
2241
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2242
        if (avctx->channels > 0) {
2243
            avctx->request_channels = FFMIN(2, avctx->channels);
2244
        } else {
2245
            avctx->request_channels = 2;
2246
        }
2247
    }
2248

    
2249
    codec = avcodec_find_decoder(avctx->codec_id);
2250
    avctx->debug_mv = debug_mv;
2251
    avctx->debug = debug;
2252
    avctx->workaround_bugs = workaround_bugs;
2253
    avctx->lowres = lowres;
2254
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2255
    avctx->idct_algo= idct;
2256
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2257
    avctx->skip_frame= skip_frame;
2258
    avctx->skip_idct= skip_idct;
2259
    avctx->skip_loop_filter= skip_loop_filter;
2260
    avctx->error_recognition= error_recognition;
2261
    avctx->error_concealment= error_concealment;
2262
    avcodec_thread_init(avctx, thread_count);
2263

    
2264
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2265

    
2266
    if (!codec ||
2267
        avcodec_open(avctx, codec) < 0)
2268
        return -1;
2269

    
2270
    /* prepare audio output */
2271
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2272
        wanted_spec.freq = avctx->sample_rate;
2273
        wanted_spec.format = AUDIO_S16SYS;
2274
        wanted_spec.channels = avctx->channels;
2275
        wanted_spec.silence = 0;
2276
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2277
        wanted_spec.callback = sdl_audio_callback;
2278
        wanted_spec.userdata = is;
2279
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2280
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2281
            return -1;
2282
        }
2283
        is->audio_hw_buf_size = spec.size;
2284
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2285
    }
2286

    
2287
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2288
    switch(avctx->codec_type) {
2289
    case AVMEDIA_TYPE_AUDIO:
2290
        is->audio_stream = stream_index;
2291
        is->audio_st = ic->streams[stream_index];
2292
        is->audio_buf_size = 0;
2293
        is->audio_buf_index = 0;
2294

    
2295
        /* init averaging filter */
2296
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2297
        is->audio_diff_avg_count = 0;
2298
        /* since we do not have a precise anough audio fifo fullness,
2299
           we correct audio sync only if larger than this threshold */
2300
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2301

    
2302
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2303
        packet_queue_init(&is->audioq);
2304
        SDL_PauseAudio(0);
2305
        break;
2306
    case AVMEDIA_TYPE_VIDEO:
2307
        is->video_stream = stream_index;
2308
        is->video_st = ic->streams[stream_index];
2309

    
2310
//        is->video_current_pts_time = av_gettime();
2311

    
2312
        packet_queue_init(&is->videoq);
2313
        is->video_tid = SDL_CreateThread(video_thread, is);
2314
        break;
2315
    case AVMEDIA_TYPE_SUBTITLE:
2316
        is->subtitle_stream = stream_index;
2317
        is->subtitle_st = ic->streams[stream_index];
2318
        packet_queue_init(&is->subtitleq);
2319

    
2320
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2321
        break;
2322
    default:
2323
        break;
2324
    }
2325
    return 0;
2326
}
2327

    
2328
static void stream_component_close(VideoState *is, int stream_index)
2329
{
2330
    AVFormatContext *ic = is->ic;
2331
    AVCodecContext *avctx;
2332

    
2333
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2334
        return;
2335
    avctx = ic->streams[stream_index]->codec;
2336

    
2337
    switch(avctx->codec_type) {
2338
    case AVMEDIA_TYPE_AUDIO:
2339
        packet_queue_abort(&is->audioq);
2340

    
2341
        SDL_CloseAudio();
2342

    
2343
        packet_queue_end(&is->audioq);
2344
        if (is->reformat_ctx)
2345
            av_audio_convert_free(is->reformat_ctx);
2346
        is->reformat_ctx = NULL;
2347
        break;
2348
    case AVMEDIA_TYPE_VIDEO:
2349
        packet_queue_abort(&is->videoq);
2350

    
2351
        /* note: we also signal this mutex to make sure we deblock the
2352
           video thread in all cases */
2353
        SDL_LockMutex(is->pictq_mutex);
2354
        SDL_CondSignal(is->pictq_cond);
2355
        SDL_UnlockMutex(is->pictq_mutex);
2356

    
2357
        SDL_WaitThread(is->video_tid, NULL);
2358

    
2359
        packet_queue_end(&is->videoq);
2360
        break;
2361
    case AVMEDIA_TYPE_SUBTITLE:
2362
        packet_queue_abort(&is->subtitleq);
2363

    
2364
        /* note: we also signal this mutex to make sure we deblock the
2365
           video thread in all cases */
2366
        SDL_LockMutex(is->subpq_mutex);
2367
        is->subtitle_stream_changed = 1;
2368

    
2369
        SDL_CondSignal(is->subpq_cond);
2370
        SDL_UnlockMutex(is->subpq_mutex);
2371

    
2372
        SDL_WaitThread(is->subtitle_tid, NULL);
2373

    
2374
        packet_queue_end(&is->subtitleq);
2375
        break;
2376
    default:
2377
        break;
2378
    }
2379

    
2380
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2381
    avcodec_close(avctx);
2382
    switch(avctx->codec_type) {
2383
    case AVMEDIA_TYPE_AUDIO:
2384
        is->audio_st = NULL;
2385
        is->audio_stream = -1;
2386
        break;
2387
    case AVMEDIA_TYPE_VIDEO:
2388
        is->video_st = NULL;
2389
        is->video_stream = -1;
2390
        break;
2391
    case AVMEDIA_TYPE_SUBTITLE:
2392
        is->subtitle_st = NULL;
2393
        is->subtitle_stream = -1;
2394
        break;
2395
    default:
2396
        break;
2397
    }
2398
}
2399

    
2400
/* since we have only one decoding thread, we can use a global
2401
   variable instead of a thread local variable */
2402
static VideoState *global_video_state;
2403

    
2404
static int decode_interrupt_cb(void)
2405
{
2406
    return (global_video_state && global_video_state->abort_request);
2407
}
2408

    
2409
/* this thread gets the stream from the disk or the network */
2410
static int decode_thread(void *arg)
2411
{
2412
    VideoState *is = arg;
2413
    AVFormatContext *ic;
2414
    int err, i, ret;
2415
    int st_index[AVMEDIA_TYPE_NB];
2416
    AVPacket pkt1, *pkt = &pkt1;
2417
    AVFormatParameters params, *ap = &params;
2418
    int eof=0;
2419
    int pkt_in_play_range = 0;
2420

    
2421
    ic = avformat_alloc_context();
2422

    
2423
    memset(st_index, -1, sizeof(st_index));
2424
    is->video_stream = -1;
2425
    is->audio_stream = -1;
2426
    is->subtitle_stream = -1;
2427

    
2428
    global_video_state = is;
2429
    url_set_interrupt_cb(decode_interrupt_cb);
2430

    
2431
    memset(ap, 0, sizeof(*ap));
2432

    
2433
    ap->prealloced_context = 1;
2434
    ap->width = frame_width;
2435
    ap->height= frame_height;
2436
    ap->time_base= (AVRational){1, 25};
2437
    ap->pix_fmt = frame_pix_fmt;
2438

    
2439
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2440

    
2441
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2442
    if (err < 0) {
2443
        print_error(is->filename, err);
2444
        ret = -1;
2445
        goto fail;
2446
    }
2447
    is->ic = ic;
2448

    
2449
    if(genpts)
2450
        ic->flags |= AVFMT_FLAG_GENPTS;
2451

    
2452
    err = av_find_stream_info(ic);
2453
    if (err < 0) {
2454
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2455
        ret = -1;
2456
        goto fail;
2457
    }
2458
    if(ic->pb)
2459
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2460

    
2461
    if(seek_by_bytes<0)
2462
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2463

    
2464
    /* if seeking requested, we execute it */
2465
    if (start_time != AV_NOPTS_VALUE) {
2466
        int64_t timestamp;
2467

    
2468
        timestamp = start_time;
2469
        /* add the stream start time */
2470
        if (ic->start_time != AV_NOPTS_VALUE)
2471
            timestamp += ic->start_time;
2472
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2473
        if (ret < 0) {
2474
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2475
                    is->filename, (double)timestamp / AV_TIME_BASE);
2476
        }
2477
    }
2478

    
2479
    for (i = 0; i < ic->nb_streams; i++)
2480
        ic->streams[i]->discard = AVDISCARD_ALL;
2481
    if (!video_disable)
2482
        st_index[AVMEDIA_TYPE_VIDEO] =
2483
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2484
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2485
    if (!audio_disable)
2486
        st_index[AVMEDIA_TYPE_AUDIO] =
2487
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2488
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2489
                                st_index[AVMEDIA_TYPE_VIDEO],
2490
                                NULL, 0);
2491
    if (!video_disable)
2492
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2493
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2494
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2495
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2496
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2497
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2498
                                NULL, 0);
2499
    if (show_status) {
2500
        dump_format(ic, 0, is->filename, 0);
2501
    }
2502

    
2503
    /* open the streams */
2504
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2505
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2506
    }
2507

    
2508
    ret=-1;
2509
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2510
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2511
    }
2512
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2513
    if(ret<0) {
2514
        if (!display_disable)
2515
            is->show_audio = 2;
2516
    }
2517

    
2518
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2519
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2520
    }
2521

    
2522
    if (is->video_stream < 0 && is->audio_stream < 0) {
2523
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2524
        ret = -1;
2525
        goto fail;
2526
    }
2527

    
2528
    for(;;) {
2529
        if (is->abort_request)
2530
            break;
2531
        if (is->paused != is->last_paused) {
2532
            is->last_paused = is->paused;
2533
            if (is->paused)
2534
                is->read_pause_return= av_read_pause(ic);
2535
            else
2536
                av_read_play(ic);
2537
        }
2538
#if CONFIG_RTSP_DEMUXER
2539
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2540
            /* wait 10 ms to avoid trying to get another packet */
2541
            /* XXX: horrible */
2542
            SDL_Delay(10);
2543
            continue;
2544
        }
2545
#endif
2546
        if (is->seek_req) {
2547
            int64_t seek_target= is->seek_pos;
2548
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2549
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2550
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2551
//      of the seek_pos/seek_rel variables
2552

    
2553
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2554
            if (ret < 0) {
2555
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2556
            }else{
2557
                if (is->audio_stream >= 0) {
2558
                    packet_queue_flush(&is->audioq);
2559
                    packet_queue_put(&is->audioq, &flush_pkt);
2560
                }
2561
                if (is->subtitle_stream >= 0) {
2562
                    packet_queue_flush(&is->subtitleq);
2563
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2564
                }
2565
                if (is->video_stream >= 0) {
2566
                    packet_queue_flush(&is->videoq);
2567
                    packet_queue_put(&is->videoq, &flush_pkt);
2568
                }
2569
            }
2570
            is->seek_req = 0;
2571
            eof= 0;
2572
        }
2573

    
2574
        /* if the queue are full, no need to read more */
2575
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2576
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2577
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2578
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2579
            /* wait 10 ms */
2580
            SDL_Delay(10);
2581
            continue;
2582
        }
2583
        if(eof) {
2584
            if(is->video_stream >= 0){
2585
                av_init_packet(pkt);
2586
                pkt->data=NULL;
2587
                pkt->size=0;
2588
                pkt->stream_index= is->video_stream;
2589
                packet_queue_put(&is->videoq, pkt);
2590
            }
2591
            SDL_Delay(10);
2592
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2593
                if(loop!=1 && (!loop || --loop)){
2594
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2595
                }else if(autoexit){
2596
                    ret=AVERROR_EOF;
2597
                    goto fail;
2598
                }
2599
            }
2600
            continue;
2601
        }
2602
        ret = av_read_frame(ic, pkt);
2603
        if (ret < 0) {
2604
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2605
                eof=1;
2606
            if (url_ferror(ic->pb))
2607
                break;
2608
            SDL_Delay(100); /* wait for user event */
2609
            continue;
2610
        }
2611
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2612
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2613
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2614
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2615
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2616
                <= ((double)duration/1000000);
2617
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2618
            packet_queue_put(&is->audioq, pkt);
2619
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2620
            packet_queue_put(&is->videoq, pkt);
2621
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2622
            packet_queue_put(&is->subtitleq, pkt);
2623
        } else {
2624
            av_free_packet(pkt);
2625
        }
2626
    }
2627
    /* wait until the end */
2628
    while (!is->abort_request) {
2629
        SDL_Delay(100);
2630
    }
2631

    
2632
    ret = 0;
2633
 fail:
2634
    /* disable interrupting */
2635
    global_video_state = NULL;
2636

    
2637
    /* close each stream */
2638
    if (is->audio_stream >= 0)
2639
        stream_component_close(is, is->audio_stream);
2640
    if (is->video_stream >= 0)
2641
        stream_component_close(is, is->video_stream);
2642
    if (is->subtitle_stream >= 0)
2643
        stream_component_close(is, is->subtitle_stream);
2644
    if (is->ic) {
2645
        av_close_input_file(is->ic);
2646
        is->ic = NULL; /* safety */
2647
    }
2648
    url_set_interrupt_cb(NULL);
2649

    
2650
    if (ret != 0) {
2651
        SDL_Event event;
2652

    
2653
        event.type = FF_QUIT_EVENT;
2654
        event.user.data1 = is;
2655
        SDL_PushEvent(&event);
2656
    }
2657
    return 0;
2658
}
2659

    
2660
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2661
{
2662
    VideoState *is;
2663

    
2664
    is = av_mallocz(sizeof(VideoState));
2665
    if (!is)
2666
        return NULL;
2667
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2668
    is->iformat = iformat;
2669
    is->ytop = 0;
2670
    is->xleft = 0;
2671

    
2672
    /* start video display */
2673
    is->pictq_mutex = SDL_CreateMutex();
2674
    is->pictq_cond = SDL_CreateCond();
2675

    
2676
    is->subpq_mutex = SDL_CreateMutex();
2677
    is->subpq_cond = SDL_CreateCond();
2678

    
2679
    is->av_sync_type = av_sync_type;
2680
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2681
    if (!is->parse_tid) {
2682
        av_free(is);
2683
        return NULL;
2684
    }
2685
    return is;
2686
}
2687

    
2688
static void stream_cycle_channel(VideoState *is, int codec_type)
2689
{
2690
    AVFormatContext *ic = is->ic;
2691
    int start_index, stream_index;
2692
    AVStream *st;
2693

    
2694
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2695
        start_index = is->video_stream;
2696
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2697
        start_index = is->audio_stream;
2698
    else
2699
        start_index = is->subtitle_stream;
2700
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2701
        return;
2702
    stream_index = start_index;
2703
    for(;;) {
2704
        if (++stream_index >= is->ic->nb_streams)
2705
        {
2706
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2707
            {
2708
                stream_index = -1;
2709
                goto the_end;
2710
            } else
2711
                stream_index = 0;
2712
        }
2713
        if (stream_index == start_index)
2714
            return;
2715
        st = ic->streams[stream_index];
2716
        if (st->codec->codec_type == codec_type) {
2717
            /* check that parameters are OK */
2718
            switch(codec_type) {
2719
            case AVMEDIA_TYPE_AUDIO:
2720
                if (st->codec->sample_rate != 0 &&
2721
                    st->codec->channels != 0)
2722
                    goto the_end;
2723
                break;
2724
            case AVMEDIA_TYPE_VIDEO:
2725
            case AVMEDIA_TYPE_SUBTITLE:
2726
                goto the_end;
2727
            default:
2728
                break;
2729
            }
2730
        }
2731
    }
2732
 the_end:
2733
    stream_component_close(is, start_index);
2734
    stream_component_open(is, stream_index);
2735
}
2736

    
2737

    
2738
static void toggle_full_screen(void)
2739
{
2740
    is_full_screen = !is_full_screen;
2741
    if (!fs_screen_width) {
2742
        /* use default SDL method */
2743
//        SDL_WM_ToggleFullScreen(screen);
2744
    }
2745
    video_open(cur_stream);
2746
}
2747

    
2748
static void toggle_pause(void)
2749
{
2750
    if (cur_stream)
2751
        stream_pause(cur_stream);
2752
    step = 0;
2753
}
2754

    
2755
static void step_to_next_frame(void)
2756
{
2757
    if (cur_stream) {
2758
        /* if the stream is paused unpause it, then step */
2759
        if (cur_stream->paused)
2760
            stream_pause(cur_stream);
2761
    }
2762
    step = 1;
2763
}
2764

    
2765
static void toggle_audio_display(void)
2766
{
2767
    if (cur_stream) {
2768
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2769
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2770
        fill_rectangle(screen,
2771
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2772
                    bgcolor);
2773
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2774
    }
2775
}
2776

    
2777
/* handle an event sent by the GUI */
2778
static void event_loop(void)
2779
{
2780
    SDL_Event event;
2781
    double incr, pos, frac;
2782

    
2783
    for(;;) {
2784
        double x;
2785
        SDL_WaitEvent(&event);
2786
        switch(event.type) {
2787
        case SDL_KEYDOWN:
2788
            if (exit_on_keydown) {
2789
                do_exit();
2790
                break;
2791
            }
2792
            switch(event.key.keysym.sym) {
2793
            case SDLK_ESCAPE:
2794
            case SDLK_q:
2795
                do_exit();
2796
                break;
2797
            case SDLK_f:
2798
                toggle_full_screen();
2799
                break;
2800
            case SDLK_p:
2801
            case SDLK_SPACE:
2802
                toggle_pause();
2803
                break;
2804
            case SDLK_s: //S: Step to next frame
2805
                step_to_next_frame();
2806
                break;
2807
            case SDLK_a:
2808
                if (cur_stream)
2809
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2810
                break;
2811
            case SDLK_v:
2812
                if (cur_stream)
2813
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2814
                break;
2815
            case SDLK_t:
2816
                if (cur_stream)
2817
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2818
                break;
2819
            case SDLK_w:
2820
                toggle_audio_display();
2821
                break;
2822
            case SDLK_LEFT:
2823
                incr = -10.0;
2824
                goto do_seek;
2825
            case SDLK_RIGHT:
2826
                incr = 10.0;
2827
                goto do_seek;
2828
            case SDLK_UP:
2829
                incr = 60.0;
2830
                goto do_seek;
2831
            case SDLK_DOWN:
2832
                incr = -60.0;
2833
            do_seek:
2834
                if (cur_stream) {
2835
                    if (seek_by_bytes) {
2836
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2837
                            pos= cur_stream->video_current_pos;
2838
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2839
                            pos= cur_stream->audio_pkt.pos;
2840
                        }else
2841
                            pos = url_ftell(cur_stream->ic->pb);
2842
                        if (cur_stream->ic->bit_rate)
2843
                            incr *= cur_stream->ic->bit_rate / 8.0;
2844
                        else
2845
                            incr *= 180000.0;
2846
                        pos += incr;
2847
                        stream_seek(cur_stream, pos, incr, 1);
2848
                    } else {
2849
                        pos = get_master_clock(cur_stream);
2850
                        pos += incr;
2851
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2852
                    }
2853
                }
2854
                break;
2855
            default:
2856
                break;
2857
            }
2858
            break;
2859
        case SDL_MOUSEBUTTONDOWN:
2860
            if (exit_on_mousedown) {
2861
                do_exit();
2862
                break;
2863
            }
2864
        case SDL_MOUSEMOTION:
2865
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2866
                x= event.button.x;
2867
            }else{
2868
                if(event.motion.state != SDL_PRESSED)
2869
                    break;
2870
                x= event.motion.x;
2871
            }
2872
            if (cur_stream) {
2873
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2874
                    uint64_t size=  url_fsize(cur_stream->ic->pb);
2875
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2876
                }else{
2877
                    int64_t ts;
2878
                    int ns, hh, mm, ss;
2879
                    int tns, thh, tmm, tss;
2880
                    tns = cur_stream->ic->duration/1000000LL;
2881
                    thh = tns/3600;
2882
                    tmm = (tns%3600)/60;
2883
                    tss = (tns%60);
2884
                    frac = x/cur_stream->width;
2885
                    ns = frac*tns;
2886
                    hh = ns/3600;
2887
                    mm = (ns%3600)/60;
2888
                    ss = (ns%60);
2889
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2890
                            hh, mm, ss, thh, tmm, tss);
2891
                    ts = frac*cur_stream->ic->duration;
2892
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2893
                        ts += cur_stream->ic->start_time;
2894
                    stream_seek(cur_stream, ts, 0, 0);
2895
                }
2896
            }
2897
            break;
2898
        case SDL_VIDEORESIZE:
2899
            if (cur_stream) {
2900
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2901
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2902
                screen_width = cur_stream->width = event.resize.w;
2903
                screen_height= cur_stream->height= event.resize.h;
2904
            }
2905
            break;
2906
        case SDL_QUIT:
2907
        case FF_QUIT_EVENT:
2908
            do_exit();
2909
            break;
2910
        case FF_ALLOC_EVENT:
2911
            video_open(event.user.data1);
2912
            alloc_picture(event.user.data1);
2913
            break;
2914
        case FF_REFRESH_EVENT:
2915
            video_refresh_timer(event.user.data1);
2916
            cur_stream->refresh=0;
2917
            break;
2918
        default:
2919
            break;
2920
        }
2921
    }
2922
}
2923

    
2924
static void opt_frame_size(const char *arg)
2925
{
2926
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2927
        fprintf(stderr, "Incorrect frame size\n");
2928
        exit(1);
2929
    }
2930
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2931
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2932
        exit(1);
2933
    }
2934
}
2935

    
2936
static int opt_width(const char *opt, const char *arg)
2937
{
2938
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2939
    return 0;
2940
}
2941

    
2942
static int opt_height(const char *opt, const char *arg)
2943
{
2944
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2945
    return 0;
2946
}
2947

    
2948
static void opt_format(const char *arg)
2949
{
2950
    file_iformat = av_find_input_format(arg);
2951
    if (!file_iformat) {
2952
        fprintf(stderr, "Unknown input format: %s\n", arg);
2953
        exit(1);
2954
    }
2955
}
2956

    
2957
static void opt_frame_pix_fmt(const char *arg)
2958
{
2959
    frame_pix_fmt = av_get_pix_fmt(arg);
2960
}
2961

    
2962
static int opt_sync(const char *opt, const char *arg)
2963
{
2964
    if (!strcmp(arg, "audio"))
2965
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2966
    else if (!strcmp(arg, "video"))
2967
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2968
    else if (!strcmp(arg, "ext"))
2969
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2970
    else {
2971
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2972
        exit(1);
2973
    }
2974
    return 0;
2975
}
2976

    
2977
static int opt_seek(const char *opt, const char *arg)
2978
{
2979
    start_time = parse_time_or_die(opt, arg, 1);
2980
    return 0;
2981
}
2982

    
2983
static int opt_duration(const char *opt, const char *arg)
2984
{
2985
    duration = parse_time_or_die(opt, arg, 1);
2986
    return 0;
2987
}
2988

    
2989
static int opt_debug(const char *opt, const char *arg)
2990
{
2991
    av_log_set_level(99);
2992
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2993
    return 0;
2994
}
2995

    
2996
static int opt_vismv(const char *opt, const char *arg)
2997
{
2998
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2999
    return 0;
3000
}
3001

    
3002
static int opt_thread_count(const char *opt, const char *arg)
3003
{
3004
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3005
#if !HAVE_THREADS
3006
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3007
#endif
3008
    return 0;
3009
}
3010

    
3011
static const OptionDef options[] = {
3012
#include "cmdutils_common_opts.h"
3013
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3014
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3015
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3016
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3017
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3018
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3019
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3020
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3021
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3022
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3023
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3024
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3025
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3026
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3027
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3028
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3029
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3030
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3031
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3032
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3033
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3034
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3035
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3036
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3037
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3038
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3039
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3040
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3041
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3042
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3043
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3044
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3045
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3046
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3047
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3048
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3049
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3050
#if CONFIG_AVFILTER
3051
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3052
#endif
3053
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3054
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3055
    { NULL, },
3056
};
3057

    
3058
static void show_usage(void)
3059
{
3060
    printf("Simple media player\n");
3061
    printf("usage: ffplay [options] input_file\n");
3062
    printf("\n");
3063
}
3064

    
3065
static void show_help(void)
3066
{
3067
    av_log_set_callback(log_callback_help);
3068
    show_usage();
3069
    show_help_options(options, "Main options:\n",
3070
                      OPT_EXPERT, 0);
3071
    show_help_options(options, "\nAdvanced options:\n",
3072
                      OPT_EXPERT, OPT_EXPERT);
3073
    printf("\n");
3074
    av_opt_show2(avcodec_opts[0], NULL,
3075
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3076
    printf("\n");
3077
    av_opt_show2(avformat_opts, NULL,
3078
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3079
#if !CONFIG_AVFILTER
3080
    printf("\n");
3081
    av_opt_show2(sws_opts, NULL,
3082
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3083
#endif
3084
    printf("\nWhile playing:\n"
3085
           "q, ESC              quit\n"
3086
           "f                   toggle full screen\n"
3087
           "p, SPC              pause\n"
3088
           "a                   cycle audio channel\n"
3089
           "v                   cycle video channel\n"
3090
           "t                   cycle subtitle channel\n"
3091
           "w                   show audio waves\n"
3092
           "s                   activate frame-step mode\n"
3093
           "left/right          seek backward/forward 10 seconds\n"
3094
           "down/up             seek backward/forward 1 minute\n"
3095
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3096
           );
3097
}
3098

    
3099
static void opt_input_file(const char *filename)
3100
{
3101
    if (input_filename) {
3102
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3103
                filename, input_filename);
3104
        exit(1);
3105
    }
3106
    if (!strcmp(filename, "-"))
3107
        filename = "pipe:";
3108
    input_filename = filename;
3109
}
3110

    
3111
/* Called from the main */
3112
int main(int argc, char **argv)
3113
{
3114
    int flags;
3115

    
3116
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3117

    
3118
    /* register all codecs, demux and protocols */
3119
    avcodec_register_all();
3120
#if CONFIG_AVDEVICE
3121
    avdevice_register_all();
3122
#endif
3123
#if CONFIG_AVFILTER
3124
    avfilter_register_all();
3125
#endif
3126
    av_register_all();
3127

    
3128
    init_opts();
3129

    
3130
    show_banner();
3131

    
3132
    parse_options(argc, argv, options, opt_input_file);
3133

    
3134
    if (!input_filename) {
3135
        show_usage();
3136
        fprintf(stderr, "An input file must be specified\n");
3137
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3138
        exit(1);
3139
    }
3140

    
3141
    if (display_disable) {
3142
        video_disable = 1;
3143
    }
3144
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3145
#if !defined(__MINGW32__) && !defined(__APPLE__)
3146
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3147
#endif
3148
    if (SDL_Init (flags)) {
3149
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3150
        exit(1);
3151
    }
3152

    
3153
    if (!display_disable) {
3154
#if HAVE_SDL_VIDEO_SIZE
3155
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3156
        fs_screen_width = vi->current_w;
3157
        fs_screen_height = vi->current_h;
3158
#endif
3159
    }
3160

    
3161
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3162
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3163
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3164

    
3165
    av_init_packet(&flush_pkt);
3166
    flush_pkt.data= "FLUSH";
3167

    
3168
    cur_stream = stream_open(input_filename, file_iformat);
3169

    
3170
    event_loop();
3171

    
3172
    /* never returns */
3173

    
3174
    return 0;
3175
}