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1
/*
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 * ffplay : Simple Media Player based on the FFmpeg libraries
3
 * Copyright (c) 2003 Fabrice Bellard
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 *
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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
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 * 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"
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#include "libavutil/colorspace.h"
30
#include "libavutil/pixdesc.h"
31
#include "libavutil/imgutils.h"
32
#include "libavutil/parseutils.h"
33
#include "libavutil/samplefmt.h"
34
#include "libavutil/avassert.h"
35
#include "libavformat/avformat.h"
36
#include "libavdevice/avdevice.h"
37
#include "libswscale/swscale.h"
38
#include "libavcodec/audioconvert.h"
39
#include "libavutil/opt.h"
40
#include "libavcodec/avfft.h"
41

    
42
#if CONFIG_AVFILTER
43
# include "libavfilter/avfilter.h"
44
# include "libavfilter/avfiltergraph.h"
45
#endif
46

    
47
#include "cmdutils.h"
48

    
49
#include <SDL.h>
50
#include <SDL_thread.h>
51

    
52
#ifdef __MINGW32__
53
#undef main /* We don't want SDL to override our main() */
54
#endif
55

    
56
#include <unistd.h>
57
#include <assert.h>
58

    
59
const char program_name[] = "ffplay";
60
const int program_birth_year = 2003;
61

    
62
//#define DEBUG
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//#define DEBUG_SYNC
64

    
65
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
66
#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
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#define MIN_FRAMES 5
68

    
69
/* SDL audio buffer size, in samples. Should be small to have precise
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   A/V sync as SDL does not have hardware buffer fullness info. */
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#define SDL_AUDIO_BUFFER_SIZE 1024
72

    
73
/* no AV sync correction is done if below the AV sync threshold */
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#define AV_SYNC_THRESHOLD 0.01
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/* no AV correction is done if too big error */
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#define AV_NOSYNC_THRESHOLD 10.0
77

    
78
#define FRAME_SKIP_FACTOR 0.05
79

    
80
/* maximum audio speed change to get correct sync */
81
#define SAMPLE_CORRECTION_PERCENT_MAX 10
82

    
83
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
84
#define AUDIO_DIFF_AVG_NB   20
85

    
86
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
87
#define SAMPLE_ARRAY_SIZE (2*65536)
88

    
89
static int sws_flags = SWS_BICUBIC;
90

    
91
typedef struct PacketQueue {
92
    AVPacketList *first_pkt, *last_pkt;
93
    int nb_packets;
94
    int size;
95
    int abort_request;
96
    SDL_mutex *mutex;
97
    SDL_cond *cond;
98
} PacketQueue;
99

    
100
#define VIDEO_PICTURE_QUEUE_SIZE 2
101
#define SUBPICTURE_QUEUE_SIZE 4
102

    
103
typedef struct VideoPicture {
104
    double pts;                                  ///<presentation time stamp for this picture
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    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
106
    int64_t pos;                                 ///<byte position in file
107
    SDL_Overlay *bmp;
108
    int width, height; /* source height & width */
109
    int allocated;
110
    enum PixelFormat pix_fmt;
111

    
112
#if CONFIG_AVFILTER
113
    AVFilterBufferRef *picref;
114
#endif
115
} VideoPicture;
116

    
117
typedef struct SubPicture {
118
    double pts; /* presentation time stamp for this picture */
119
    AVSubtitle sub;
120
} SubPicture;
121

    
122
enum {
123
    AV_SYNC_AUDIO_MASTER, /* default choice */
124
    AV_SYNC_VIDEO_MASTER,
125
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
126
};
127

    
128
typedef struct VideoState {
129
    SDL_Thread *read_tid;
130
    SDL_Thread *video_tid;
131
    SDL_Thread *refresh_tid;
132
    AVInputFormat *iformat;
133
    int no_background;
134
    int abort_request;
135
    int paused;
136
    int last_paused;
137
    int seek_req;
138
    int seek_flags;
139
    int64_t seek_pos;
140
    int64_t seek_rel;
141
    int read_pause_return;
142
    AVFormatContext *ic;
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
    enum ShowMode {
171
        SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
172
    } show_mode;
173
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
174
    int sample_array_index;
175
    int last_i_start;
176
    RDFTContext *rdft;
177
    int rdft_bits;
178
    FFTSample *rdft_data;
179
    int xpos;
180

    
181
    SDL_Thread *subtitle_tid;
182
    int subtitle_stream;
183
    int subtitle_stream_changed;
184
    AVStream *subtitle_st;
185
    PacketQueue subtitleq;
186
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
187
    int subpq_size, subpq_rindex, subpq_windex;
188
    SDL_mutex *subpq_mutex;
189
    SDL_cond *subpq_cond;
190

    
191
    double frame_timer;
192
    double frame_last_pts;
193
    double frame_last_delay;
194
    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
195
    int video_stream;
196
    AVStream *video_st;
197
    PacketQueue videoq;
198
    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
199
    double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
200
    int64_t video_current_pos;                   ///<current displayed file pos
201
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
202
    int pictq_size, pictq_rindex, pictq_windex;
203
    SDL_mutex *pictq_mutex;
204
    SDL_cond *pictq_cond;
205
#if !CONFIG_AVFILTER
206
    struct SwsContext *img_convert_ctx;
207
#endif
208

    
209
    char filename[1024];
210
    int width, height, xleft, ytop;
211

    
212
#if CONFIG_AVFILTER
213
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
214
#endif
215

    
216
    float skip_frames;
217
    float skip_frames_index;
218
    int refresh;
219
} VideoState;
220

    
221
static void show_help(void);
222

    
223
/* options specified by the user */
224
static AVInputFormat *file_iformat;
225
static const char *input_filename;
226
static const char *window_title;
227
static int fs_screen_width;
228
static int fs_screen_height;
229
static int screen_width = 0;
230
static int screen_height = 0;
231
static int frame_width = 0;
232
static int frame_height = 0;
233
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
234
static int audio_disable;
235
static int video_disable;
236
static int wanted_stream[AVMEDIA_TYPE_NB]={
237
    [AVMEDIA_TYPE_AUDIO]=-1,
238
    [AVMEDIA_TYPE_VIDEO]=-1,
239
    [AVMEDIA_TYPE_SUBTITLE]=-1,
240
};
241
static int seek_by_bytes=-1;
242
static int display_disable;
243
static int show_status = 1;
244
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
245
static int64_t start_time = AV_NOPTS_VALUE;
246
static int64_t duration = AV_NOPTS_VALUE;
247
static int debug = 0;
248
static int debug_mv = 0;
249
static int step = 0;
250
static int thread_count = 1;
251
static int workaround_bugs = 1;
252
static int fast = 0;
253
static int genpts = 0;
254
static int lowres = 0;
255
static int idct = FF_IDCT_AUTO;
256
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259
static int error_recognition = FF_ER_CAREFUL;
260
static int error_concealment = 3;
261
static int decoder_reorder_pts= -1;
262
static int autoexit;
263
static int exit_on_keydown;
264
static int exit_on_mousedown;
265
static int loop=1;
266
static int framedrop=1;
267
static enum ShowMode show_mode = SHOW_MODE_NONE;
268

    
269
static int rdftspeed=20;
270
#if CONFIG_AVFILTER
271
static char *vfilters = NULL;
272
#endif
273

    
274
/* current context */
275
static int is_full_screen;
276
static VideoState *cur_stream;
277
static int64_t audio_callback_time;
278

    
279
static AVPacket flush_pkt;
280

    
281
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
282
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
284

    
285
static SDL_Surface *screen;
286

    
287
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
288
{
289
    AVPacketList *pkt1;
290

    
291
    /* duplicate the packet */
292
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
293
        return -1;
294

    
295
    pkt1 = av_malloc(sizeof(AVPacketList));
296
    if (!pkt1)
297
        return -1;
298
    pkt1->pkt = *pkt;
299
    pkt1->next = NULL;
300

    
301

    
302
    SDL_LockMutex(q->mutex);
303

    
304
    if (!q->last_pkt)
305

    
306
        q->first_pkt = pkt1;
307
    else
308
        q->last_pkt->next = pkt1;
309
    q->last_pkt = pkt1;
310
    q->nb_packets++;
311
    q->size += pkt1->pkt.size + sizeof(*pkt1);
312
    /* XXX: should duplicate packet data in DV case */
313
    SDL_CondSignal(q->cond);
314

    
315
    SDL_UnlockMutex(q->mutex);
316
    return 0;
317
}
318

    
319
/* packet queue handling */
320
static void packet_queue_init(PacketQueue *q)
321
{
322
    memset(q, 0, sizeof(PacketQueue));
323
    q->mutex = SDL_CreateMutex();
324
    q->cond = SDL_CreateCond();
325
    packet_queue_put(q, &flush_pkt);
326
}
327

    
328
static void packet_queue_flush(PacketQueue *q)
329
{
330
    AVPacketList *pkt, *pkt1;
331

    
332
    SDL_LockMutex(q->mutex);
333
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
334
        pkt1 = pkt->next;
335
        av_free_packet(&pkt->pkt);
336
        av_freep(&pkt);
337
    }
338
    q->last_pkt = NULL;
339
    q->first_pkt = NULL;
340
    q->nb_packets = 0;
341
    q->size = 0;
342
    SDL_UnlockMutex(q->mutex);
343
}
344

    
345
static void packet_queue_end(PacketQueue *q)
346
{
347
    packet_queue_flush(q);
348
    SDL_DestroyMutex(q->mutex);
349
    SDL_DestroyCond(q->cond);
350
}
351

    
352
static void packet_queue_abort(PacketQueue *q)
353
{
354
    SDL_LockMutex(q->mutex);
355

    
356
    q->abort_request = 1;
357

    
358
    SDL_CondSignal(q->cond);
359

    
360
    SDL_UnlockMutex(q->mutex);
361
}
362

    
363
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
364
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
365
{
366
    AVPacketList *pkt1;
367
    int ret;
368

    
369
    SDL_LockMutex(q->mutex);
370

    
371
    for(;;) {
372
        if (q->abort_request) {
373
            ret = -1;
374
            break;
375
        }
376

    
377
        pkt1 = q->first_pkt;
378
        if (pkt1) {
379
            q->first_pkt = pkt1->next;
380
            if (!q->first_pkt)
381
                q->last_pkt = NULL;
382
            q->nb_packets--;
383
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
384
            *pkt = pkt1->pkt;
385
            av_free(pkt1);
386
            ret = 1;
387
            break;
388
        } else if (!block) {
389
            ret = 0;
390
            break;
391
        } else {
392
            SDL_CondWait(q->cond, q->mutex);
393
        }
394
    }
395
    SDL_UnlockMutex(q->mutex);
396
    return ret;
397
}
398

    
399
static inline void fill_rectangle(SDL_Surface *screen,
400
                                  int x, int y, int w, int h, int color)
401
{
402
    SDL_Rect rect;
403
    rect.x = x;
404
    rect.y = y;
405
    rect.w = w;
406
    rect.h = h;
407
    SDL_FillRect(screen, &rect, color);
408
}
409

    
410
#if 0
411
/* draw only the border of a rectangle */
412
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
413
{
414
    int w1, w2, h1, h2;
415

416
    /* fill the background */
417
    w1 = x;
418
    if (w1 < 0)
419
        w1 = 0;
420
    w2 = s->width - (x + w);
421
    if (w2 < 0)
422
        w2 = 0;
423
    h1 = y;
424
    if (h1 < 0)
425
        h1 = 0;
426
    h2 = s->height - (y + h);
427
    if (h2 < 0)
428
        h2 = 0;
429
    fill_rectangle(screen,
430
                   s->xleft, s->ytop,
431
                   w1, s->height,
432
                   color);
433
    fill_rectangle(screen,
434
                   s->xleft + s->width - w2, s->ytop,
435
                   w2, s->height,
436
                   color);
437
    fill_rectangle(screen,
438
                   s->xleft + w1, s->ytop,
439
                   s->width - w1 - w2, h1,
440
                   color);
441
    fill_rectangle(screen,
442
                   s->xleft + w1, s->ytop + s->height - h2,
443
                   s->width - w1 - w2, h2,
444
                   color);
445
}
446
#endif
447

    
448
#define ALPHA_BLEND(a, oldp, newp, s)\
449
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
450

    
451
#define RGBA_IN(r, g, b, a, s)\
452
{\
453
    unsigned int v = ((const uint32_t *)(s))[0];\
454
    a = (v >> 24) & 0xff;\
455
    r = (v >> 16) & 0xff;\
456
    g = (v >> 8) & 0xff;\
457
    b = v & 0xff;\
458
}
459

    
460
#define YUVA_IN(y, u, v, a, s, pal)\
461
{\
462
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
463
    a = (val >> 24) & 0xff;\
464
    y = (val >> 16) & 0xff;\
465
    u = (val >> 8) & 0xff;\
466
    v = val & 0xff;\
467
}
468

    
469
#define YUVA_OUT(d, y, u, v, a)\
470
{\
471
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
472
}
473

    
474

    
475
#define BPP 1
476

    
477
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
478
{
479
    int wrap, wrap3, width2, skip2;
480
    int y, u, v, a, u1, v1, a1, w, h;
481
    uint8_t *lum, *cb, *cr;
482
    const uint8_t *p;
483
    const uint32_t *pal;
484
    int dstx, dsty, dstw, dsth;
485

    
486
    dstw = av_clip(rect->w, 0, imgw);
487
    dsth = av_clip(rect->h, 0, imgh);
488
    dstx = av_clip(rect->x, 0, imgw - dstw);
489
    dsty = av_clip(rect->y, 0, imgh - dsth);
490
    lum = dst->data[0] + dsty * dst->linesize[0];
491
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
492
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
493

    
494
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
495
    skip2 = dstx >> 1;
496
    wrap = dst->linesize[0];
497
    wrap3 = rect->pict.linesize[0];
498
    p = rect->pict.data[0];
499
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
500

    
501
    if (dsty & 1) {
502
        lum += dstx;
503
        cb += skip2;
504
        cr += skip2;
505

    
506
        if (dstx & 1) {
507
            YUVA_IN(y, u, v, a, p, pal);
508
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
509
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
510
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
511
            cb++;
512
            cr++;
513
            lum++;
514
            p += BPP;
515
        }
516
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
517
            YUVA_IN(y, u, v, a, p, pal);
518
            u1 = u;
519
            v1 = v;
520
            a1 = a;
521
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
522

    
523
            YUVA_IN(y, u, v, a, p + BPP, pal);
524
            u1 += u;
525
            v1 += v;
526
            a1 += a;
527
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
528
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
529
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
530
            cb++;
531
            cr++;
532
            p += 2 * BPP;
533
            lum += 2;
534
        }
535
        if (w) {
536
            YUVA_IN(y, u, v, a, p, pal);
537
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
538
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
539
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
540
            p++;
541
            lum++;
542
        }
543
        p += wrap3 - dstw * BPP;
544
        lum += wrap - dstw - dstx;
545
        cb += dst->linesize[1] - width2 - skip2;
546
        cr += dst->linesize[2] - width2 - skip2;
547
    }
548
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
549
        lum += dstx;
550
        cb += skip2;
551
        cr += skip2;
552

    
553
        if (dstx & 1) {
554
            YUVA_IN(y, u, v, a, p, pal);
555
            u1 = u;
556
            v1 = v;
557
            a1 = a;
558
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
559
            p += wrap3;
560
            lum += wrap;
561
            YUVA_IN(y, u, v, a, p, pal);
562
            u1 += u;
563
            v1 += v;
564
            a1 += a;
565
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
566
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
567
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
568
            cb++;
569
            cr++;
570
            p += -wrap3 + BPP;
571
            lum += -wrap + 1;
572
        }
573
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
574
            YUVA_IN(y, u, v, a, p, pal);
575
            u1 = u;
576
            v1 = v;
577
            a1 = a;
578
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
579

    
580
            YUVA_IN(y, u, v, a, p + BPP, pal);
581
            u1 += u;
582
            v1 += v;
583
            a1 += a;
584
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
585
            p += wrap3;
586
            lum += wrap;
587

    
588
            YUVA_IN(y, u, v, a, p, pal);
589
            u1 += u;
590
            v1 += v;
591
            a1 += a;
592
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
593

    
594
            YUVA_IN(y, u, v, a, p + BPP, pal);
595
            u1 += u;
596
            v1 += v;
597
            a1 += a;
598
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
599

    
600
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
601
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
602

    
603
            cb++;
604
            cr++;
605
            p += -wrap3 + 2 * BPP;
606
            lum += -wrap + 2;
607
        }
608
        if (w) {
609
            YUVA_IN(y, u, v, a, p, pal);
610
            u1 = u;
611
            v1 = v;
612
            a1 = a;
613
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
614
            p += wrap3;
615
            lum += wrap;
616
            YUVA_IN(y, u, v, a, p, pal);
617
            u1 += u;
618
            v1 += v;
619
            a1 += a;
620
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
621
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
622
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
623
            cb++;
624
            cr++;
625
            p += -wrap3 + BPP;
626
            lum += -wrap + 1;
627
        }
628
        p += wrap3 + (wrap3 - dstw * BPP);
629
        lum += wrap + (wrap - dstw - dstx);
630
        cb += dst->linesize[1] - width2 - skip2;
631
        cr += dst->linesize[2] - width2 - skip2;
632
    }
633
    /* handle odd height */
634
    if (h) {
635
        lum += dstx;
636
        cb += skip2;
637
        cr += skip2;
638

    
639
        if (dstx & 1) {
640
            YUVA_IN(y, u, v, a, p, pal);
641
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
642
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
643
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
644
            cb++;
645
            cr++;
646
            lum++;
647
            p += BPP;
648
        }
649
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
650
            YUVA_IN(y, u, v, a, p, pal);
651
            u1 = u;
652
            v1 = v;
653
            a1 = a;
654
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
655

    
656
            YUVA_IN(y, u, v, a, p + BPP, pal);
657
            u1 += u;
658
            v1 += v;
659
            a1 += a;
660
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
661
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
662
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
663
            cb++;
664
            cr++;
665
            p += 2 * BPP;
666
            lum += 2;
667
        }
668
        if (w) {
669
            YUVA_IN(y, u, v, a, p, pal);
670
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
671
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
672
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
673
        }
674
    }
675
}
676

    
677
static void free_subpicture(SubPicture *sp)
678
{
679
    avsubtitle_free(&sp->sub);
680
}
681

    
682
static void video_image_display(VideoState *is)
683
{
684
    VideoPicture *vp;
685
    SubPicture *sp;
686
    AVPicture pict;
687
    float aspect_ratio;
688
    int width, height, x, y;
689
    SDL_Rect rect;
690
    int i;
691

    
692
    vp = &is->pictq[is->pictq_rindex];
693
    if (vp->bmp) {
694
#if CONFIG_AVFILTER
695
         if (vp->picref->video->sample_aspect_ratio.num == 0)
696
             aspect_ratio = 0;
697
         else
698
             aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
699
#else
700

    
701
        /* XXX: use variable in the frame */
702
        if (is->video_st->sample_aspect_ratio.num)
703
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
704
        else if (is->video_st->codec->sample_aspect_ratio.num)
705
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
706
        else
707
            aspect_ratio = 0;
708
#endif
709
        if (aspect_ratio <= 0.0)
710
            aspect_ratio = 1.0;
711
        aspect_ratio *= (float)vp->width / (float)vp->height;
712

    
713
        if (is->subtitle_st) {
714
            if (is->subpq_size > 0) {
715
                sp = &is->subpq[is->subpq_rindex];
716

    
717
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
718
                    SDL_LockYUVOverlay (vp->bmp);
719

    
720
                    pict.data[0] = vp->bmp->pixels[0];
721
                    pict.data[1] = vp->bmp->pixels[2];
722
                    pict.data[2] = vp->bmp->pixels[1];
723

    
724
                    pict.linesize[0] = vp->bmp->pitches[0];
725
                    pict.linesize[1] = vp->bmp->pitches[2];
726
                    pict.linesize[2] = vp->bmp->pitches[1];
727

    
728
                    for (i = 0; i < sp->sub.num_rects; i++)
729
                        blend_subrect(&pict, sp->sub.rects[i],
730
                                      vp->bmp->w, vp->bmp->h);
731

    
732
                    SDL_UnlockYUVOverlay (vp->bmp);
733
                }
734
            }
735
        }
736

    
737

    
738
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
739
        height = is->height;
740
        width = ((int)rint(height * aspect_ratio)) & ~1;
741
        if (width > is->width) {
742
            width = is->width;
743
            height = ((int)rint(width / aspect_ratio)) & ~1;
744
        }
745
        x = (is->width - width) / 2;
746
        y = (is->height - height) / 2;
747
        if (!is->no_background) {
748
            /* fill the background */
749
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
750
        } else {
751
            is->no_background = 0;
752
        }
753
        rect.x = is->xleft + x;
754
        rect.y = is->ytop  + y;
755
        rect.w = FFMAX(width,  1);
756
        rect.h = FFMAX(height, 1);
757
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
758
    } else {
759
#if 0
760
        fill_rectangle(screen,
761
                       is->xleft, is->ytop, is->width, is->height,
762
                       QERGB(0x00, 0x00, 0x00));
763
#endif
764
    }
765
}
766

    
767
/* get the current audio output buffer size, in samples. With SDL, we
768
   cannot have a precise information */
769
static int audio_write_get_buf_size(VideoState *is)
770
{
771
    return is->audio_buf_size - is->audio_buf_index;
772
}
773

    
774
static inline int compute_mod(int a, int b)
775
{
776
    return a < 0 ? a%b + b : a%b;
777
}
778

    
779
static void video_audio_display(VideoState *s)
780
{
781
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
782
    int ch, channels, h, h2, bgcolor, fgcolor;
783
    int16_t time_diff;
784
    int rdft_bits, nb_freq;
785

    
786
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
787
        ;
788
    nb_freq= 1<<(rdft_bits-1);
789

    
790
    /* compute display index : center on currently output samples */
791
    channels = s->audio_st->codec->channels;
792
    nb_display_channels = channels;
793
    if (!s->paused) {
794
        int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
795
        n = 2 * channels;
796
        delay = audio_write_get_buf_size(s);
797
        delay /= n;
798

    
799
        /* to be more precise, we take into account the time spent since
800
           the last buffer computation */
801
        if (audio_callback_time) {
802
            time_diff = av_gettime() - audio_callback_time;
803
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
804
        }
805

    
806
        delay += 2*data_used;
807
        if (delay < data_used)
808
            delay = data_used;
809

    
810
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
811
        if (s->show_mode == SHOW_MODE_WAVES) {
812
            h= INT_MIN;
813
            for(i=0; i<1000; i+=channels){
814
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
815
                int a= s->sample_array[idx];
816
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
817
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
818
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
819
                int score= a-d;
820
                if(h<score && (b^c)<0){
821
                    h= score;
822
                    i_start= idx;
823
                }
824
            }
825
        }
826

    
827
        s->last_i_start = i_start;
828
    } else {
829
        i_start = s->last_i_start;
830
    }
831

    
832
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
833
    if (s->show_mode == SHOW_MODE_WAVES) {
834
        fill_rectangle(screen,
835
                       s->xleft, s->ytop, s->width, s->height,
836
                       bgcolor);
837

    
838
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
839

    
840
        /* total height for one channel */
841
        h = s->height / nb_display_channels;
842
        /* graph height / 2 */
843
        h2 = (h * 9) / 20;
844
        for(ch = 0;ch < nb_display_channels; ch++) {
845
            i = i_start + ch;
846
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
847
            for(x = 0; x < s->width; x++) {
848
                y = (s->sample_array[i] * h2) >> 15;
849
                if (y < 0) {
850
                    y = -y;
851
                    ys = y1 - y;
852
                } else {
853
                    ys = y1;
854
                }
855
                fill_rectangle(screen,
856
                               s->xleft + x, ys, 1, y,
857
                               fgcolor);
858
                i += channels;
859
                if (i >= SAMPLE_ARRAY_SIZE)
860
                    i -= SAMPLE_ARRAY_SIZE;
861
            }
862
        }
863

    
864
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
865

    
866
        for(ch = 1;ch < nb_display_channels; ch++) {
867
            y = s->ytop + ch * h;
868
            fill_rectangle(screen,
869
                           s->xleft, y, s->width, 1,
870
                           fgcolor);
871
        }
872
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
873
    }else{
874
        nb_display_channels= FFMIN(nb_display_channels, 2);
875
        if(rdft_bits != s->rdft_bits){
876
            av_rdft_end(s->rdft);
877
            av_free(s->rdft_data);
878
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
879
            s->rdft_bits= rdft_bits;
880
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
881
        }
882
        {
883
            FFTSample *data[2];
884
            for(ch = 0;ch < nb_display_channels; ch++) {
885
                data[ch] = s->rdft_data + 2*nb_freq*ch;
886
                i = i_start + ch;
887
                for(x = 0; x < 2*nb_freq; x++) {
888
                    double w= (x-nb_freq)*(1.0/nb_freq);
889
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
890
                    i += channels;
891
                    if (i >= SAMPLE_ARRAY_SIZE)
892
                        i -= SAMPLE_ARRAY_SIZE;
893
                }
894
                av_rdft_calc(s->rdft, data[ch]);
895
            }
896
            //least efficient way to do this, we should of course directly access it but its more than fast enough
897
            for(y=0; y<s->height; y++){
898
                double w= 1/sqrt(nb_freq);
899
                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]));
900
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
901
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
902
                a= FFMIN(a,255);
903
                b= FFMIN(b,255);
904
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
905

    
906
                fill_rectangle(screen,
907
                            s->xpos, s->height-y, 1, 1,
908
                            fgcolor);
909
            }
910
        }
911
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
912
        s->xpos++;
913
        if(s->xpos >= s->width)
914
            s->xpos= s->xleft;
915
    }
916
}
917

    
918
static int video_open(VideoState *is){
919
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
920
    int w,h;
921

    
922
    if(is_full_screen) flags |= SDL_FULLSCREEN;
923
    else               flags |= SDL_RESIZABLE;
924

    
925
    if (is_full_screen && fs_screen_width) {
926
        w = fs_screen_width;
927
        h = fs_screen_height;
928
    } else if(!is_full_screen && screen_width){
929
        w = screen_width;
930
        h = screen_height;
931
#if CONFIG_AVFILTER
932
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
933
        w = is->out_video_filter->inputs[0]->w;
934
        h = is->out_video_filter->inputs[0]->h;
935
#else
936
    }else if (is->video_st && is->video_st->codec->width){
937
        w = is->video_st->codec->width;
938
        h = is->video_st->codec->height;
939
#endif
940
    } else {
941
        w = 640;
942
        h = 480;
943
    }
944
    if(screen && is->width == screen->w && screen->w == w
945
       && is->height== screen->h && screen->h == h)
946
        return 0;
947

    
948
#ifndef __APPLE__
949
    screen = SDL_SetVideoMode(w, h, 0, flags);
950
#else
951
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
952
    screen = SDL_SetVideoMode(w, h, 24, flags);
953
#endif
954
    if (!screen) {
955
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
956
        return -1;
957
    }
958
    if (!window_title)
959
        window_title = input_filename;
960
    SDL_WM_SetCaption(window_title, window_title);
961

    
962
    is->width = screen->w;
963
    is->height = screen->h;
964

    
965
    return 0;
966
}
967

    
968
/* display the current picture, if any */
969
static void video_display(VideoState *is)
970
{
971
    if(!screen)
972
        video_open(cur_stream);
973
    if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
974
        video_audio_display(is);
975
    else if (is->video_st)
976
        video_image_display(is);
977
}
978

    
979
static int refresh_thread(void *opaque)
980
{
981
    VideoState *is= opaque;
982
    while(!is->abort_request){
983
        SDL_Event event;
984
        event.type = FF_REFRESH_EVENT;
985
        event.user.data1 = opaque;
986
        if(!is->refresh){
987
            is->refresh=1;
988
            SDL_PushEvent(&event);
989
        }
990
        //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
991
        usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
992
    }
993
    return 0;
994
}
995

    
996
/* get the current audio clock value */
997
static double get_audio_clock(VideoState *is)
998
{
999
    double pts;
1000
    int hw_buf_size, bytes_per_sec;
1001
    pts = is->audio_clock;
1002
    hw_buf_size = audio_write_get_buf_size(is);
1003
    bytes_per_sec = 0;
1004
    if (is->audio_st) {
1005
        bytes_per_sec = is->audio_st->codec->sample_rate *
1006
            2 * is->audio_st->codec->channels;
1007
    }
1008
    if (bytes_per_sec)
1009
        pts -= (double)hw_buf_size / bytes_per_sec;
1010
    return pts;
1011
}
1012

    
1013
/* get the current video clock value */
1014
static double get_video_clock(VideoState *is)
1015
{
1016
    if (is->paused) {
1017
        return is->video_current_pts;
1018
    } else {
1019
        return is->video_current_pts_drift + av_gettime() / 1000000.0;
1020
    }
1021
}
1022

    
1023
/* get the current external clock value */
1024
static double get_external_clock(VideoState *is)
1025
{
1026
    int64_t ti;
1027
    ti = av_gettime();
1028
    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1029
}
1030

    
1031
/* get the current master clock value */
1032
static double get_master_clock(VideoState *is)
1033
{
1034
    double val;
1035

    
1036
    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1037
        if (is->video_st)
1038
            val = get_video_clock(is);
1039
        else
1040
            val = get_audio_clock(is);
1041
    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1042
        if (is->audio_st)
1043
            val = get_audio_clock(is);
1044
        else
1045
            val = get_video_clock(is);
1046
    } else {
1047
        val = get_external_clock(is);
1048
    }
1049
    return val;
1050
}
1051

    
1052
/* seek in the stream */
1053
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1054
{
1055
    if (!is->seek_req) {
1056
        is->seek_pos = pos;
1057
        is->seek_rel = rel;
1058
        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1059
        if (seek_by_bytes)
1060
            is->seek_flags |= AVSEEK_FLAG_BYTE;
1061
        is->seek_req = 1;
1062
    }
1063
}
1064

    
1065
/* pause or resume the video */
1066
static void stream_toggle_pause(VideoState *is)
1067
{
1068
    if (is->paused) {
1069
        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1070
        if(is->read_pause_return != AVERROR(ENOSYS)){
1071
            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1072
        }
1073
        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1074
    }
1075
    is->paused = !is->paused;
1076
}
1077

    
1078
static double compute_target_time(double frame_current_pts, VideoState *is)
1079
{
1080
    double delay, sync_threshold, diff;
1081

    
1082
    /* compute nominal delay */
1083
    delay = frame_current_pts - is->frame_last_pts;
1084
    if (delay <= 0 || delay >= 10.0) {
1085
        /* if incorrect delay, use previous one */
1086
        delay = is->frame_last_delay;
1087
    } else {
1088
        is->frame_last_delay = delay;
1089
    }
1090
    is->frame_last_pts = frame_current_pts;
1091

    
1092
    /* update delay to follow master synchronisation source */
1093
    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1094
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1095
        /* if video is slave, we try to correct big delays by
1096
           duplicating or deleting a frame */
1097
        diff = get_video_clock(is) - get_master_clock(is);
1098

    
1099
        /* skip or repeat frame. We take into account the
1100
           delay to compute the threshold. I still don't know
1101
           if it is the best guess */
1102
        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1103
        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1104
            if (diff <= -sync_threshold)
1105
                delay = 0;
1106
            else if (diff >= sync_threshold)
1107
                delay = 2 * delay;
1108
        }
1109
    }
1110
    is->frame_timer += delay;
1111
#if defined(DEBUG_SYNC)
1112
    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1113
            delay, actual_delay, frame_current_pts, -diff);
1114
#endif
1115

    
1116
    return is->frame_timer;
1117
}
1118

    
1119
/* called to display each frame */
1120
static void video_refresh(void *opaque)
1121
{
1122
    VideoState *is = opaque;
1123
    VideoPicture *vp;
1124

    
1125
    SubPicture *sp, *sp2;
1126

    
1127
    if (is->video_st) {
1128
retry:
1129
        if (is->pictq_size == 0) {
1130
            //nothing to do, no picture to display in the que
1131
        } else {
1132
            double time= av_gettime()/1000000.0;
1133
            double next_target;
1134
            /* dequeue the picture */
1135
            vp = &is->pictq[is->pictq_rindex];
1136

    
1137
            if(time < vp->target_clock)
1138
                return;
1139
            /* update current video pts */
1140
            is->video_current_pts = vp->pts;
1141
            is->video_current_pts_drift = is->video_current_pts - time;
1142
            is->video_current_pos = vp->pos;
1143
            if(is->pictq_size > 1){
1144
                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1145
                assert(nextvp->target_clock >= vp->target_clock);
1146
                next_target= nextvp->target_clock;
1147
            }else{
1148
                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1149
            }
1150
            if(framedrop && time > next_target){
1151
                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1152
                if(is->pictq_size > 1 || time > next_target + 0.5){
1153
                    /* update queue size and signal for next picture */
1154
                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1155
                        is->pictq_rindex = 0;
1156

    
1157
                    SDL_LockMutex(is->pictq_mutex);
1158
                    is->pictq_size--;
1159
                    SDL_CondSignal(is->pictq_cond);
1160
                    SDL_UnlockMutex(is->pictq_mutex);
1161
                    goto retry;
1162
                }
1163
            }
1164

    
1165
            if(is->subtitle_st) {
1166
                if (is->subtitle_stream_changed) {
1167
                    SDL_LockMutex(is->subpq_mutex);
1168

    
1169
                    while (is->subpq_size) {
1170
                        free_subpicture(&is->subpq[is->subpq_rindex]);
1171

    
1172
                        /* update queue size and signal for next picture */
1173
                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1174
                            is->subpq_rindex = 0;
1175

    
1176
                        is->subpq_size--;
1177
                    }
1178
                    is->subtitle_stream_changed = 0;
1179

    
1180
                    SDL_CondSignal(is->subpq_cond);
1181
                    SDL_UnlockMutex(is->subpq_mutex);
1182
                } else {
1183
                    if (is->subpq_size > 0) {
1184
                        sp = &is->subpq[is->subpq_rindex];
1185

    
1186
                        if (is->subpq_size > 1)
1187
                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1188
                        else
1189
                            sp2 = NULL;
1190

    
1191
                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1192
                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1193
                        {
1194
                            free_subpicture(sp);
1195

    
1196
                            /* update queue size and signal for next picture */
1197
                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1198
                                is->subpq_rindex = 0;
1199

    
1200
                            SDL_LockMutex(is->subpq_mutex);
1201
                            is->subpq_size--;
1202
                            SDL_CondSignal(is->subpq_cond);
1203
                            SDL_UnlockMutex(is->subpq_mutex);
1204
                        }
1205
                    }
1206
                }
1207
            }
1208

    
1209
            /* display picture */
1210
            if (!display_disable)
1211
                video_display(is);
1212

    
1213
            /* update queue size and signal for next picture */
1214
            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1215
                is->pictq_rindex = 0;
1216

    
1217
            SDL_LockMutex(is->pictq_mutex);
1218
            is->pictq_size--;
1219
            SDL_CondSignal(is->pictq_cond);
1220
            SDL_UnlockMutex(is->pictq_mutex);
1221
        }
1222
    } else if (is->audio_st) {
1223
        /* draw the next audio frame */
1224

    
1225
        /* if only audio stream, then display the audio bars (better
1226
           than nothing, just to test the implementation */
1227

    
1228
        /* display picture */
1229
        if (!display_disable)
1230
            video_display(is);
1231
    }
1232
    if (show_status) {
1233
        static int64_t last_time;
1234
        int64_t cur_time;
1235
        int aqsize, vqsize, sqsize;
1236
        double av_diff;
1237

    
1238
        cur_time = av_gettime();
1239
        if (!last_time || (cur_time - last_time) >= 30000) {
1240
            aqsize = 0;
1241
            vqsize = 0;
1242
            sqsize = 0;
1243
            if (is->audio_st)
1244
                aqsize = is->audioq.size;
1245
            if (is->video_st)
1246
                vqsize = is->videoq.size;
1247
            if (is->subtitle_st)
1248
                sqsize = is->subtitleq.size;
1249
            av_diff = 0;
1250
            if (is->audio_st && is->video_st)
1251
                av_diff = get_audio_clock(is) - get_video_clock(is);
1252
            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1253
                   get_master_clock(is),
1254
                   av_diff,
1255
                   FFMAX(is->skip_frames-1, 0),
1256
                   aqsize / 1024,
1257
                   vqsize / 1024,
1258
                   sqsize,
1259
                   is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1260
                   is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1261
            fflush(stdout);
1262
            last_time = cur_time;
1263
        }
1264
    }
1265
}
1266

    
1267
static void stream_close(VideoState *is)
1268
{
1269
    VideoPicture *vp;
1270
    int i;
1271
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1272
    is->abort_request = 1;
1273
    SDL_WaitThread(is->read_tid, NULL);
1274
    SDL_WaitThread(is->refresh_tid, NULL);
1275

    
1276
    /* free all pictures */
1277
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1278
        vp = &is->pictq[i];
1279
#if CONFIG_AVFILTER
1280
        if (vp->picref) {
1281
            avfilter_unref_buffer(vp->picref);
1282
            vp->picref = NULL;
1283
        }
1284
#endif
1285
        if (vp->bmp) {
1286
            SDL_FreeYUVOverlay(vp->bmp);
1287
            vp->bmp = NULL;
1288
        }
1289
    }
1290
    SDL_DestroyMutex(is->pictq_mutex);
1291
    SDL_DestroyCond(is->pictq_cond);
1292
    SDL_DestroyMutex(is->subpq_mutex);
1293
    SDL_DestroyCond(is->subpq_cond);
1294
#if !CONFIG_AVFILTER
1295
    if (is->img_convert_ctx)
1296
        sws_freeContext(is->img_convert_ctx);
1297
#endif
1298
    av_free(is);
1299
}
1300

    
1301
static void do_exit(void)
1302
{
1303
    if (cur_stream) {
1304
        stream_close(cur_stream);
1305
        cur_stream = NULL;
1306
    }
1307
    uninit_opts();
1308
#if CONFIG_AVFILTER
1309
    avfilter_uninit();
1310
#endif
1311
    if (show_status)
1312
        printf("\n");
1313
    SDL_Quit();
1314
    av_log(NULL, AV_LOG_QUIET, "");
1315
    exit(0);
1316
}
1317

    
1318
/* allocate a picture (needs to do that in main thread to avoid
1319
   potential locking problems */
1320
static void alloc_picture(void *opaque)
1321
{
1322
    VideoState *is = opaque;
1323
    VideoPicture *vp;
1324

    
1325
    vp = &is->pictq[is->pictq_windex];
1326

    
1327
    if (vp->bmp)
1328
        SDL_FreeYUVOverlay(vp->bmp);
1329

    
1330
#if CONFIG_AVFILTER
1331
    if (vp->picref)
1332
        avfilter_unref_buffer(vp->picref);
1333
    vp->picref = NULL;
1334

    
1335
    vp->width   = is->out_video_filter->inputs[0]->w;
1336
    vp->height  = is->out_video_filter->inputs[0]->h;
1337
    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1338
#else
1339
    vp->width   = is->video_st->codec->width;
1340
    vp->height  = is->video_st->codec->height;
1341
    vp->pix_fmt = is->video_st->codec->pix_fmt;
1342
#endif
1343

    
1344
    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1345
                                   SDL_YV12_OVERLAY,
1346
                                   screen);
1347
    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1348
        /* SDL allocates a buffer smaller than requested if the video
1349
         * overlay hardware is unable to support the requested size. */
1350
        fprintf(stderr, "Error: the video system does not support an image\n"
1351
                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1352
                        "to reduce the image size.\n", vp->width, vp->height );
1353
        do_exit();
1354
    }
1355

    
1356
    SDL_LockMutex(is->pictq_mutex);
1357
    vp->allocated = 1;
1358
    SDL_CondSignal(is->pictq_cond);
1359
    SDL_UnlockMutex(is->pictq_mutex);
1360
}
1361

    
1362
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1363
{
1364
    VideoPicture *vp;
1365
    double frame_delay, pts = pts1;
1366

    
1367
    /* compute the exact PTS for the picture if it is omitted in the stream
1368
     * pts1 is the dts of the pkt / pts of the frame */
1369
    if (pts != 0) {
1370
        /* update video clock with pts, if present */
1371
        is->video_clock = pts;
1372
    } else {
1373
        pts = is->video_clock;
1374
    }
1375
    /* update video clock for next frame */
1376
    frame_delay = av_q2d(is->video_st->codec->time_base);
1377
    /* for MPEG2, the frame can be repeated, so we update the
1378
       clock accordingly */
1379
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1380
    is->video_clock += frame_delay;
1381

    
1382
#if defined(DEBUG_SYNC) && 0
1383
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1384
           av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1385
#endif
1386

    
1387
    /* wait until we have space to put a new picture */
1388
    SDL_LockMutex(is->pictq_mutex);
1389

    
1390
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1391
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1392

    
1393
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1394
           !is->videoq.abort_request) {
1395
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1396
    }
1397
    SDL_UnlockMutex(is->pictq_mutex);
1398

    
1399
    if (is->videoq.abort_request)
1400
        return -1;
1401

    
1402
    vp = &is->pictq[is->pictq_windex];
1403

    
1404
    /* alloc or resize hardware picture buffer */
1405
    if (!vp->bmp ||
1406
#if CONFIG_AVFILTER
1407
        vp->width  != is->out_video_filter->inputs[0]->w ||
1408
        vp->height != is->out_video_filter->inputs[0]->h) {
1409
#else
1410
        vp->width != is->video_st->codec->width ||
1411
        vp->height != is->video_st->codec->height) {
1412
#endif
1413
        SDL_Event event;
1414

    
1415
        vp->allocated = 0;
1416

    
1417
        /* the allocation must be done in the main thread to avoid
1418
           locking problems */
1419
        event.type = FF_ALLOC_EVENT;
1420
        event.user.data1 = is;
1421
        SDL_PushEvent(&event);
1422

    
1423
        /* wait until the picture is allocated */
1424
        SDL_LockMutex(is->pictq_mutex);
1425
        while (!vp->allocated && !is->videoq.abort_request) {
1426
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1427
        }
1428
        SDL_UnlockMutex(is->pictq_mutex);
1429

    
1430
        if (is->videoq.abort_request)
1431
            return -1;
1432
    }
1433

    
1434
    /* if the frame is not skipped, then display it */
1435
    if (vp->bmp) {
1436
        AVPicture pict;
1437
#if CONFIG_AVFILTER
1438
        if(vp->picref)
1439
            avfilter_unref_buffer(vp->picref);
1440
        vp->picref = src_frame->opaque;
1441
#endif
1442

    
1443
        /* get a pointer on the bitmap */
1444
        SDL_LockYUVOverlay (vp->bmp);
1445

    
1446
        memset(&pict,0,sizeof(AVPicture));
1447
        pict.data[0] = vp->bmp->pixels[0];
1448
        pict.data[1] = vp->bmp->pixels[2];
1449
        pict.data[2] = vp->bmp->pixels[1];
1450

    
1451
        pict.linesize[0] = vp->bmp->pitches[0];
1452
        pict.linesize[1] = vp->bmp->pitches[2];
1453
        pict.linesize[2] = vp->bmp->pitches[1];
1454

    
1455
#if CONFIG_AVFILTER
1456
        //FIXME use direct rendering
1457
        av_picture_copy(&pict, (AVPicture *)src_frame,
1458
                        vp->pix_fmt, vp->width, vp->height);
1459
#else
1460
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1461
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1462
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1463
            PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1464
        if (is->img_convert_ctx == NULL) {
1465
            fprintf(stderr, "Cannot initialize the conversion context\n");
1466
            exit(1);
1467
        }
1468
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1469
                  0, vp->height, pict.data, pict.linesize);
1470
#endif
1471
        /* update the bitmap content */
1472
        SDL_UnlockYUVOverlay(vp->bmp);
1473

    
1474
        vp->pts = pts;
1475
        vp->pos = pos;
1476

    
1477
        /* now we can update the picture count */
1478
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1479
            is->pictq_windex = 0;
1480
        SDL_LockMutex(is->pictq_mutex);
1481
        vp->target_clock= compute_target_time(vp->pts, is);
1482

    
1483
        is->pictq_size++;
1484
        SDL_UnlockMutex(is->pictq_mutex);
1485
    }
1486
    return 0;
1487
}
1488

    
1489
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1490
{
1491
    int len1, got_picture, i;
1492

    
1493
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1494
        return -1;
1495

    
1496
    if (pkt->data == flush_pkt.data) {
1497
        avcodec_flush_buffers(is->video_st->codec);
1498

    
1499
        SDL_LockMutex(is->pictq_mutex);
1500
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1501
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1502
            is->pictq[i].target_clock= 0;
1503
        }
1504
        while (is->pictq_size && !is->videoq.abort_request) {
1505
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1506
        }
1507
        is->video_current_pos = -1;
1508
        SDL_UnlockMutex(is->pictq_mutex);
1509

    
1510
        is->frame_last_pts = AV_NOPTS_VALUE;
1511
        is->frame_last_delay = 0;
1512
        is->frame_timer = (double)av_gettime() / 1000000.0;
1513
        is->skip_frames = 1;
1514
        is->skip_frames_index = 0;
1515
        return 0;
1516
    }
1517

    
1518
    len1 = avcodec_decode_video2(is->video_st->codec,
1519
                                 frame, &got_picture,
1520
                                 pkt);
1521

    
1522
    if (got_picture) {
1523
        if (decoder_reorder_pts == -1) {
1524
            *pts = frame->best_effort_timestamp;
1525
        } else if (decoder_reorder_pts) {
1526
            *pts = frame->pkt_pts;
1527
        } else {
1528
            *pts = frame->pkt_dts;
1529
        }
1530

    
1531
        if (*pts == AV_NOPTS_VALUE) {
1532
            *pts = 0;
1533
        }
1534

    
1535
        is->skip_frames_index += 1;
1536
        if(is->skip_frames_index >= is->skip_frames){
1537
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1538
            return 1;
1539
        }
1540

    
1541
    }
1542
    return 0;
1543
}
1544

    
1545
#if CONFIG_AVFILTER
1546
typedef struct {
1547
    VideoState *is;
1548
    AVFrame *frame;
1549
    int use_dr1;
1550
} FilterPriv;
1551

    
1552
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1553
{
1554
    AVFilterContext *ctx = codec->opaque;
1555
    AVFilterBufferRef  *ref;
1556
    int perms = AV_PERM_WRITE;
1557
    int i, w, h, stride[4];
1558
    unsigned edge;
1559
    int pixel_size;
1560

    
1561
    av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1562

    
1563
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1564
        perms |= AV_PERM_NEG_LINESIZES;
1565

    
1566
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1567
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1568
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1569
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1570
    }
1571
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1572

    
1573
    w = codec->width;
1574
    h = codec->height;
1575

    
1576
    if(av_image_check_size(w, h, 0, codec))
1577
        return -1;
1578

    
1579
    avcodec_align_dimensions2(codec, &w, &h, stride);
1580
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1581
    w += edge << 1;
1582
    h += edge << 1;
1583

    
1584
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1585
        return -1;
1586

    
1587
    pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1588
    ref->video->w = codec->width;
1589
    ref->video->h = codec->height;
1590
    for(i = 0; i < 4; i ++) {
1591
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1592
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1593

    
1594
        if (ref->data[i]) {
1595
            ref->data[i]    += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1596
        }
1597
        pic->data[i]     = ref->data[i];
1598
        pic->linesize[i] = ref->linesize[i];
1599
    }
1600
    pic->opaque = ref;
1601
    pic->age    = INT_MAX;
1602
    pic->type   = FF_BUFFER_TYPE_USER;
1603
    pic->reordered_opaque = codec->reordered_opaque;
1604
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1605
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1606
    return 0;
1607
}
1608

    
1609
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1610
{
1611
    memset(pic->data, 0, sizeof(pic->data));
1612
    avfilter_unref_buffer(pic->opaque);
1613
}
1614

    
1615
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1616
{
1617
    AVFilterBufferRef *ref = pic->opaque;
1618

    
1619
    if (pic->data[0] == NULL) {
1620
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1621
        return codec->get_buffer(codec, pic);
1622
    }
1623

    
1624
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1625
        (codec->pix_fmt != ref->format)) {
1626
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1627
        return -1;
1628
    }
1629

    
1630
    pic->reordered_opaque = codec->reordered_opaque;
1631
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1632
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1633
    return 0;
1634
}
1635

    
1636
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1637
{
1638
    FilterPriv *priv = ctx->priv;
1639
    AVCodecContext *codec;
1640
    if(!opaque) return -1;
1641

    
1642
    priv->is = opaque;
1643
    codec    = priv->is->video_st->codec;
1644
    codec->opaque = ctx;
1645
    if((codec->codec->capabilities & CODEC_CAP_DR1)
1646
    ) {
1647
        codec->flags |= CODEC_FLAG_EMU_EDGE;
1648
        priv->use_dr1 = 1;
1649
        codec->get_buffer     = input_get_buffer;
1650
        codec->release_buffer = input_release_buffer;
1651
        codec->reget_buffer   = input_reget_buffer;
1652
        codec->thread_safe_callbacks = 1;
1653
    }
1654

    
1655
    priv->frame = avcodec_alloc_frame();
1656

    
1657
    return 0;
1658
}
1659

    
1660
static void input_uninit(AVFilterContext *ctx)
1661
{
1662
    FilterPriv *priv = ctx->priv;
1663
    av_free(priv->frame);
1664
}
1665

    
1666
static int input_request_frame(AVFilterLink *link)
1667
{
1668
    FilterPriv *priv = link->src->priv;
1669
    AVFilterBufferRef *picref;
1670
    int64_t pts = 0;
1671
    AVPacket pkt;
1672
    int ret;
1673

    
1674
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1675
        av_free_packet(&pkt);
1676
    if (ret < 0)
1677
        return -1;
1678

    
1679
    if(priv->use_dr1) {
1680
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1681
    } else {
1682
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1683
        av_image_copy(picref->data, picref->linesize,
1684
                      priv->frame->data, priv->frame->linesize,
1685
                      picref->format, link->w, link->h);
1686
    }
1687
    av_free_packet(&pkt);
1688

    
1689
    picref->pts = pts;
1690
    picref->pos = priv->frame->pkt_pos;
1691
    picref->video->sample_aspect_ratio = priv->frame->sample_aspect_ratio;
1692
    avfilter_start_frame(link, picref);
1693
    avfilter_draw_slice(link, 0, link->h, 1);
1694
    avfilter_end_frame(link);
1695

    
1696
    return 0;
1697
}
1698

    
1699
static int input_query_formats(AVFilterContext *ctx)
1700
{
1701
    FilterPriv *priv = ctx->priv;
1702
    enum PixelFormat pix_fmts[] = {
1703
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1704
    };
1705

    
1706
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1707
    return 0;
1708
}
1709

    
1710
static int input_config_props(AVFilterLink *link)
1711
{
1712
    FilterPriv *priv  = link->src->priv;
1713
    AVCodecContext *c = priv->is->video_st->codec;
1714

    
1715
    link->w = c->width;
1716
    link->h = c->height;
1717
    link->time_base = priv->is->video_st->time_base;
1718

    
1719
    return 0;
1720
}
1721

    
1722
static AVFilter input_filter =
1723
{
1724
    .name      = "ffplay_input",
1725

    
1726
    .priv_size = sizeof(FilterPriv),
1727

    
1728
    .init      = input_init,
1729
    .uninit    = input_uninit,
1730

    
1731
    .query_formats = input_query_formats,
1732

    
1733
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1734
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1735
                                    .type = AVMEDIA_TYPE_VIDEO,
1736
                                    .request_frame = input_request_frame,
1737
                                    .config_props  = input_config_props, },
1738
                                  { .name = NULL }},
1739
};
1740

    
1741
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1742
{
1743
    char sws_flags_str[128];
1744
    int ret;
1745
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1746
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1747
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1748
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1749

    
1750
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1751
                                            NULL, is, graph)) < 0)
1752
        goto the_end;
1753
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1754
                                            NULL, &ffsink_ctx, graph)) < 0)
1755
        goto the_end;
1756

    
1757
    if(vfilters) {
1758
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1759
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1760

    
1761
        outputs->name    = av_strdup("in");
1762
        outputs->filter_ctx = filt_src;
1763
        outputs->pad_idx = 0;
1764
        outputs->next    = NULL;
1765

    
1766
        inputs->name    = av_strdup("out");
1767
        inputs->filter_ctx = filt_out;
1768
        inputs->pad_idx = 0;
1769
        inputs->next    = NULL;
1770

    
1771
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1772
            goto the_end;
1773
        av_freep(&vfilters);
1774
    } else {
1775
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1776
            goto the_end;
1777
    }
1778

    
1779
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1780
        goto the_end;
1781

    
1782
    is->out_video_filter = filt_out;
1783
the_end:
1784
    return ret;
1785
}
1786

    
1787
#endif  /* CONFIG_AVFILTER */
1788

    
1789
static int video_thread(void *arg)
1790
{
1791
    VideoState *is = arg;
1792
    AVFrame *frame= avcodec_alloc_frame();
1793
    int64_t pts_int, pos;
1794
    double pts;
1795
    int ret;
1796

    
1797
#if CONFIG_AVFILTER
1798
    AVFilterGraph *graph = avfilter_graph_alloc();
1799
    AVFilterContext *filt_out = NULL;
1800

    
1801
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1802
        goto the_end;
1803
    filt_out = is->out_video_filter;
1804
#endif
1805

    
1806
    for(;;) {
1807
#if !CONFIG_AVFILTER
1808
        AVPacket pkt;
1809
#else
1810
        AVFilterBufferRef *picref;
1811
        AVRational tb;
1812
#endif
1813
        while (is->paused && !is->videoq.abort_request)
1814
            SDL_Delay(10);
1815
#if CONFIG_AVFILTER
1816
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1817
        if (picref) {
1818
            pts_int = picref->pts;
1819
            pos     = picref->pos;
1820
            frame->opaque = picref;
1821
        }
1822

    
1823
        if (av_cmp_q(tb, is->video_st->time_base)) {
1824
            av_unused int64_t pts1 = pts_int;
1825
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1826
            av_dlog(NULL, "video_thread(): "
1827
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1828
                    tb.num, tb.den, pts1,
1829
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1830
        }
1831
#else
1832
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1833
        pos = pkt.pos;
1834
#endif
1835

    
1836
        if (ret < 0) goto the_end;
1837

    
1838
        if (!ret)
1839
            continue;
1840

    
1841
        pts = pts_int*av_q2d(is->video_st->time_base);
1842

    
1843
        ret = queue_picture(is, frame, pts, pos);
1844
#if !CONFIG_AVFILTER
1845
        av_free_packet(&pkt);
1846
#endif
1847
        if (ret < 0)
1848
            goto the_end;
1849

    
1850
        if (step)
1851
            if (cur_stream)
1852
                stream_toggle_pause(cur_stream);
1853
    }
1854
 the_end:
1855
#if CONFIG_AVFILTER
1856
    avfilter_graph_free(&graph);
1857
#endif
1858
    av_free(frame);
1859
    return 0;
1860
}
1861

    
1862
static int subtitle_thread(void *arg)
1863
{
1864
    VideoState *is = arg;
1865
    SubPicture *sp;
1866
    AVPacket pkt1, *pkt = &pkt1;
1867
    int len1, got_subtitle;
1868
    double pts;
1869
    int i, j;
1870
    int r, g, b, y, u, v, a;
1871

    
1872
    for(;;) {
1873
        while (is->paused && !is->subtitleq.abort_request) {
1874
            SDL_Delay(10);
1875
        }
1876
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1877
            break;
1878

    
1879
        if(pkt->data == flush_pkt.data){
1880
            avcodec_flush_buffers(is->subtitle_st->codec);
1881
            continue;
1882
        }
1883
        SDL_LockMutex(is->subpq_mutex);
1884
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1885
               !is->subtitleq.abort_request) {
1886
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1887
        }
1888
        SDL_UnlockMutex(is->subpq_mutex);
1889

    
1890
        if (is->subtitleq.abort_request)
1891
            goto the_end;
1892

    
1893
        sp = &is->subpq[is->subpq_windex];
1894

    
1895
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1896
           this packet, if any */
1897
        pts = 0;
1898
        if (pkt->pts != AV_NOPTS_VALUE)
1899
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1900

    
1901
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1902
                                    &sp->sub, &got_subtitle,
1903
                                    pkt);
1904
//            if (len1 < 0)
1905
//                break;
1906
        if (got_subtitle && sp->sub.format == 0) {
1907
            sp->pts = pts;
1908

    
1909
            for (i = 0; i < sp->sub.num_rects; i++)
1910
            {
1911
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1912
                {
1913
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1914
                    y = RGB_TO_Y_CCIR(r, g, b);
1915
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1916
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1917
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1918
                }
1919
            }
1920

    
1921
            /* now we can update the picture count */
1922
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1923
                is->subpq_windex = 0;
1924
            SDL_LockMutex(is->subpq_mutex);
1925
            is->subpq_size++;
1926
            SDL_UnlockMutex(is->subpq_mutex);
1927
        }
1928
        av_free_packet(pkt);
1929
//        if (step)
1930
//            if (cur_stream)
1931
//                stream_toggle_pause(cur_stream);
1932
    }
1933
 the_end:
1934
    return 0;
1935
}
1936

    
1937
/* copy samples for viewing in editor window */
1938
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1939
{
1940
    int size, len;
1941

    
1942
    size = samples_size / sizeof(short);
1943
    while (size > 0) {
1944
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1945
        if (len > size)
1946
            len = size;
1947
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1948
        samples += len;
1949
        is->sample_array_index += len;
1950
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1951
            is->sample_array_index = 0;
1952
        size -= len;
1953
    }
1954
}
1955

    
1956
/* return the new audio buffer size (samples can be added or deleted
1957
   to get better sync if video or external master clock) */
1958
static int synchronize_audio(VideoState *is, short *samples,
1959
                             int samples_size1, double pts)
1960
{
1961
    int n, samples_size;
1962
    double ref_clock;
1963

    
1964
    n = 2 * is->audio_st->codec->channels;
1965
    samples_size = samples_size1;
1966

    
1967
    /* if not master, then we try to remove or add samples to correct the clock */
1968
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1969
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1970
        double diff, avg_diff;
1971
        int wanted_size, min_size, max_size, nb_samples;
1972

    
1973
        ref_clock = get_master_clock(is);
1974
        diff = get_audio_clock(is) - ref_clock;
1975

    
1976
        if (diff < AV_NOSYNC_THRESHOLD) {
1977
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1978
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1979
                /* not enough measures to have a correct estimate */
1980
                is->audio_diff_avg_count++;
1981
            } else {
1982
                /* estimate the A-V difference */
1983
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1984

    
1985
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
1986
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1987
                    nb_samples = samples_size / n;
1988

    
1989
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1990
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1991
                    if (wanted_size < min_size)
1992
                        wanted_size = min_size;
1993
                    else if (wanted_size > max_size)
1994
                        wanted_size = max_size;
1995

    
1996
                    /* add or remove samples to correction the synchro */
1997
                    if (wanted_size < samples_size) {
1998
                        /* remove samples */
1999
                        samples_size = wanted_size;
2000
                    } else if (wanted_size > samples_size) {
2001
                        uint8_t *samples_end, *q;
2002
                        int nb;
2003

    
2004
                        /* add samples */
2005
                        nb = (samples_size - wanted_size);
2006
                        samples_end = (uint8_t *)samples + samples_size - n;
2007
                        q = samples_end + n;
2008
                        while (nb > 0) {
2009
                            memcpy(q, samples_end, n);
2010
                            q += n;
2011
                            nb -= n;
2012
                        }
2013
                        samples_size = wanted_size;
2014
                    }
2015
                }
2016
#if 0
2017
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2018
                       diff, avg_diff, samples_size - samples_size1,
2019
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2020
#endif
2021
            }
2022
        } else {
2023
            /* too big difference : may be initial PTS errors, so
2024
               reset A-V filter */
2025
            is->audio_diff_avg_count = 0;
2026
            is->audio_diff_cum = 0;
2027
        }
2028
    }
2029

    
2030
    return samples_size;
2031
}
2032

    
2033
/* decode one audio frame and returns its uncompressed size */
2034
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2035
{
2036
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2037
    AVPacket *pkt = &is->audio_pkt;
2038
    AVCodecContext *dec= is->audio_st->codec;
2039
    int n, len1, data_size;
2040
    double pts;
2041

    
2042
    for(;;) {
2043
        /* NOTE: the audio packet can contain several frames */
2044
        while (pkt_temp->size > 0) {
2045
            data_size = sizeof(is->audio_buf1);
2046
            len1 = avcodec_decode_audio3(dec,
2047
                                        (int16_t *)is->audio_buf1, &data_size,
2048
                                        pkt_temp);
2049
            if (len1 < 0) {
2050
                /* if error, we skip the frame */
2051
                pkt_temp->size = 0;
2052
                break;
2053
            }
2054

    
2055
            pkt_temp->data += len1;
2056
            pkt_temp->size -= len1;
2057
            if (data_size <= 0)
2058
                continue;
2059

    
2060
            if (dec->sample_fmt != is->audio_src_fmt) {
2061
                if (is->reformat_ctx)
2062
                    av_audio_convert_free(is->reformat_ctx);
2063
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2064
                                                         dec->sample_fmt, 1, NULL, 0);
2065
                if (!is->reformat_ctx) {
2066
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2067
                        av_get_sample_fmt_name(dec->sample_fmt),
2068
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2069
                        break;
2070
                }
2071
                is->audio_src_fmt= dec->sample_fmt;
2072
            }
2073

    
2074
            if (is->reformat_ctx) {
2075
                const void *ibuf[6]= {is->audio_buf1};
2076
                void *obuf[6]= {is->audio_buf2};
2077
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2078
                int ostride[6]= {2};
2079
                int len= data_size/istride[0];
2080
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2081
                    printf("av_audio_convert() failed\n");
2082
                    break;
2083
                }
2084
                is->audio_buf= is->audio_buf2;
2085
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2086
                          remove this legacy cruft */
2087
                data_size= len*2;
2088
            }else{
2089
                is->audio_buf= is->audio_buf1;
2090
            }
2091

    
2092
            /* if no pts, then compute it */
2093
            pts = is->audio_clock;
2094
            *pts_ptr = pts;
2095
            n = 2 * dec->channels;
2096
            is->audio_clock += (double)data_size /
2097
                (double)(n * dec->sample_rate);
2098
#if defined(DEBUG_SYNC)
2099
            {
2100
                static double last_clock;
2101
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2102
                       is->audio_clock - last_clock,
2103
                       is->audio_clock, pts);
2104
                last_clock = is->audio_clock;
2105
            }
2106
#endif
2107
            return data_size;
2108
        }
2109

    
2110
        /* free the current packet */
2111
        if (pkt->data)
2112
            av_free_packet(pkt);
2113

    
2114
        if (is->paused || is->audioq.abort_request) {
2115
            return -1;
2116
        }
2117

    
2118
        /* read next packet */
2119
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2120
            return -1;
2121
        if(pkt->data == flush_pkt.data){
2122
            avcodec_flush_buffers(dec);
2123
            continue;
2124
        }
2125

    
2126
        pkt_temp->data = pkt->data;
2127
        pkt_temp->size = pkt->size;
2128

    
2129
        /* if update the audio clock with the pts */
2130
        if (pkt->pts != AV_NOPTS_VALUE) {
2131
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2132
        }
2133
    }
2134
}
2135

    
2136
/* prepare a new audio buffer */
2137
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2138
{
2139
    VideoState *is = opaque;
2140
    int audio_size, len1;
2141
    double pts;
2142

    
2143
    audio_callback_time = av_gettime();
2144

    
2145
    while (len > 0) {
2146
        if (is->audio_buf_index >= is->audio_buf_size) {
2147
           audio_size = audio_decode_frame(is, &pts);
2148
           if (audio_size < 0) {
2149
                /* if error, just output silence */
2150
               is->audio_buf = is->audio_buf1;
2151
               is->audio_buf_size = 1024;
2152
               memset(is->audio_buf, 0, is->audio_buf_size);
2153
           } else {
2154
               if (is->show_mode != SHOW_MODE_VIDEO)
2155
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2156
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2157
                                              pts);
2158
               is->audio_buf_size = audio_size;
2159
           }
2160
           is->audio_buf_index = 0;
2161
        }
2162
        len1 = is->audio_buf_size - is->audio_buf_index;
2163
        if (len1 > len)
2164
            len1 = len;
2165
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2166
        len -= len1;
2167
        stream += len1;
2168
        is->audio_buf_index += len1;
2169
    }
2170
}
2171

    
2172
/* open a given stream. Return 0 if OK */
2173
static int stream_component_open(VideoState *is, int stream_index)
2174
{
2175
    AVFormatContext *ic = is->ic;
2176
    AVCodecContext *avctx;
2177
    AVCodec *codec;
2178
    SDL_AudioSpec wanted_spec, spec;
2179

    
2180
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2181
        return -1;
2182
    avctx = ic->streams[stream_index]->codec;
2183

    
2184
    /* prepare audio output */
2185
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2186
        if (avctx->channels > 0) {
2187
            avctx->request_channels = FFMIN(2, avctx->channels);
2188
        } else {
2189
            avctx->request_channels = 2;
2190
        }
2191
    }
2192

    
2193
    codec = avcodec_find_decoder(avctx->codec_id);
2194
    avctx->debug_mv = debug_mv;
2195
    avctx->debug = debug;
2196
    avctx->workaround_bugs = workaround_bugs;
2197
    avctx->lowres = lowres;
2198
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2199
    avctx->idct_algo= idct;
2200
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2201
    avctx->skip_frame= skip_frame;
2202
    avctx->skip_idct= skip_idct;
2203
    avctx->skip_loop_filter= skip_loop_filter;
2204
    avctx->error_recognition= error_recognition;
2205
    avctx->error_concealment= error_concealment;
2206
    avctx->thread_count= thread_count;
2207

    
2208
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2209

    
2210
    if (!codec ||
2211
        avcodec_open(avctx, codec) < 0)
2212
        return -1;
2213

    
2214
    /* prepare audio output */
2215
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2216
        wanted_spec.freq = avctx->sample_rate;
2217
        wanted_spec.format = AUDIO_S16SYS;
2218
        wanted_spec.channels = avctx->channels;
2219
        wanted_spec.silence = 0;
2220
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2221
        wanted_spec.callback = sdl_audio_callback;
2222
        wanted_spec.userdata = is;
2223
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2224
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2225
            return -1;
2226
        }
2227
        is->audio_hw_buf_size = spec.size;
2228
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2229
    }
2230

    
2231
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2232
    switch(avctx->codec_type) {
2233
    case AVMEDIA_TYPE_AUDIO:
2234
        is->audio_stream = stream_index;
2235
        is->audio_st = ic->streams[stream_index];
2236
        is->audio_buf_size = 0;
2237
        is->audio_buf_index = 0;
2238

    
2239
        /* init averaging filter */
2240
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2241
        is->audio_diff_avg_count = 0;
2242
        /* since we do not have a precise anough audio fifo fullness,
2243
           we correct audio sync only if larger than this threshold */
2244
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2245

    
2246
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2247
        packet_queue_init(&is->audioq);
2248
        SDL_PauseAudio(0);
2249
        break;
2250
    case AVMEDIA_TYPE_VIDEO:
2251
        is->video_stream = stream_index;
2252
        is->video_st = ic->streams[stream_index];
2253

    
2254
//        is->video_current_pts_time = av_gettime();
2255

    
2256
        packet_queue_init(&is->videoq);
2257
        is->video_tid = SDL_CreateThread(video_thread, is);
2258
        break;
2259
    case AVMEDIA_TYPE_SUBTITLE:
2260
        is->subtitle_stream = stream_index;
2261
        is->subtitle_st = ic->streams[stream_index];
2262
        packet_queue_init(&is->subtitleq);
2263

    
2264
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2265
        break;
2266
    default:
2267
        break;
2268
    }
2269
    return 0;
2270
}
2271

    
2272
static void stream_component_close(VideoState *is, int stream_index)
2273
{
2274
    AVFormatContext *ic = is->ic;
2275
    AVCodecContext *avctx;
2276

    
2277
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2278
        return;
2279
    avctx = ic->streams[stream_index]->codec;
2280

    
2281
    switch(avctx->codec_type) {
2282
    case AVMEDIA_TYPE_AUDIO:
2283
        packet_queue_abort(&is->audioq);
2284

    
2285
        SDL_CloseAudio();
2286

    
2287
        packet_queue_end(&is->audioq);
2288
        if (is->reformat_ctx)
2289
            av_audio_convert_free(is->reformat_ctx);
2290
        is->reformat_ctx = NULL;
2291
        break;
2292
    case AVMEDIA_TYPE_VIDEO:
2293
        packet_queue_abort(&is->videoq);
2294

    
2295
        /* note: we also signal this mutex to make sure we deblock the
2296
           video thread in all cases */
2297
        SDL_LockMutex(is->pictq_mutex);
2298
        SDL_CondSignal(is->pictq_cond);
2299
        SDL_UnlockMutex(is->pictq_mutex);
2300

    
2301
        SDL_WaitThread(is->video_tid, NULL);
2302

    
2303
        packet_queue_end(&is->videoq);
2304
        break;
2305
    case AVMEDIA_TYPE_SUBTITLE:
2306
        packet_queue_abort(&is->subtitleq);
2307

    
2308
        /* note: we also signal this mutex to make sure we deblock the
2309
           video thread in all cases */
2310
        SDL_LockMutex(is->subpq_mutex);
2311
        is->subtitle_stream_changed = 1;
2312

    
2313
        SDL_CondSignal(is->subpq_cond);
2314
        SDL_UnlockMutex(is->subpq_mutex);
2315

    
2316
        SDL_WaitThread(is->subtitle_tid, NULL);
2317

    
2318
        packet_queue_end(&is->subtitleq);
2319
        break;
2320
    default:
2321
        break;
2322
    }
2323

    
2324
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2325
    avcodec_close(avctx);
2326
    switch(avctx->codec_type) {
2327
    case AVMEDIA_TYPE_AUDIO:
2328
        is->audio_st = NULL;
2329
        is->audio_stream = -1;
2330
        break;
2331
    case AVMEDIA_TYPE_VIDEO:
2332
        is->video_st = NULL;
2333
        is->video_stream = -1;
2334
        break;
2335
    case AVMEDIA_TYPE_SUBTITLE:
2336
        is->subtitle_st = NULL;
2337
        is->subtitle_stream = -1;
2338
        break;
2339
    default:
2340
        break;
2341
    }
2342
}
2343

    
2344
/* since we have only one decoding thread, we can use a global
2345
   variable instead of a thread local variable */
2346
static VideoState *global_video_state;
2347

    
2348
static int decode_interrupt_cb(void)
2349
{
2350
    return (global_video_state && global_video_state->abort_request);
2351
}
2352

    
2353
/* this thread gets the stream from the disk or the network */
2354
static int read_thread(void *arg)
2355
{
2356
    VideoState *is = arg;
2357
    AVFormatContext *ic;
2358
    int err, i, ret;
2359
    int st_index[AVMEDIA_TYPE_NB];
2360
    AVPacket pkt1, *pkt = &pkt1;
2361
    AVFormatParameters params, *ap = &params;
2362
    int eof=0;
2363
    int pkt_in_play_range = 0;
2364

    
2365
    ic = avformat_alloc_context();
2366

    
2367
    memset(st_index, -1, sizeof(st_index));
2368
    is->video_stream = -1;
2369
    is->audio_stream = -1;
2370
    is->subtitle_stream = -1;
2371

    
2372
    global_video_state = is;
2373
    avio_set_interrupt_cb(decode_interrupt_cb);
2374

    
2375
    memset(ap, 0, sizeof(*ap));
2376

    
2377
    ap->prealloced_context = 1;
2378
    ap->width = frame_width;
2379
    ap->height= frame_height;
2380
    ap->time_base= (AVRational){1, 25};
2381
    ap->pix_fmt = frame_pix_fmt;
2382
    ic->flags |= AVFMT_FLAG_PRIV_OPT;
2383

    
2384

    
2385
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2386
    if (err >= 0) {
2387
        set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2388
        err = av_demuxer_open(ic, ap);
2389
        if(err < 0){
2390
            avformat_free_context(ic);
2391
            ic= NULL;
2392
        }
2393
    }
2394
    if (err < 0) {
2395
        print_error(is->filename, err);
2396
        ret = -1;
2397
        goto fail;
2398
    }
2399
    is->ic = ic;
2400

    
2401
    if(genpts)
2402
        ic->flags |= AVFMT_FLAG_GENPTS;
2403

    
2404
    err = av_find_stream_info(ic);
2405
    if (err < 0) {
2406
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2407
        ret = -1;
2408
        goto fail;
2409
    }
2410
    if(ic->pb)
2411
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2412

    
2413
    if(seek_by_bytes<0)
2414
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2415

    
2416
    /* if seeking requested, we execute it */
2417
    if (start_time != AV_NOPTS_VALUE) {
2418
        int64_t timestamp;
2419

    
2420
        timestamp = start_time;
2421
        /* add the stream start time */
2422
        if (ic->start_time != AV_NOPTS_VALUE)
2423
            timestamp += ic->start_time;
2424
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2425
        if (ret < 0) {
2426
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2427
                    is->filename, (double)timestamp / AV_TIME_BASE);
2428
        }
2429
    }
2430

    
2431
    for (i = 0; i < ic->nb_streams; i++)
2432
        ic->streams[i]->discard = AVDISCARD_ALL;
2433
    if (!video_disable)
2434
        st_index[AVMEDIA_TYPE_VIDEO] =
2435
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2436
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2437
    if (!audio_disable)
2438
        st_index[AVMEDIA_TYPE_AUDIO] =
2439
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2440
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2441
                                st_index[AVMEDIA_TYPE_VIDEO],
2442
                                NULL, 0);
2443
    if (!video_disable)
2444
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2445
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2446
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2447
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2448
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2449
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2450
                                NULL, 0);
2451
    if (show_status) {
2452
        av_dump_format(ic, 0, is->filename, 0);
2453
    }
2454

    
2455
    is->show_mode = show_mode;
2456

    
2457
    /* open the streams */
2458
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2459
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2460
    }
2461

    
2462
    ret=-1;
2463
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2464
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2465
    }
2466
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2467
    if (is->show_mode == SHOW_MODE_NONE)
2468
        is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2469

    
2470
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2471
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2472
    }
2473

    
2474
    if (is->video_stream < 0 && is->audio_stream < 0) {
2475
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2476
        ret = -1;
2477
        goto fail;
2478
    }
2479

    
2480
    for(;;) {
2481
        if (is->abort_request)
2482
            break;
2483
        if (is->paused != is->last_paused) {
2484
            is->last_paused = is->paused;
2485
            if (is->paused)
2486
                is->read_pause_return= av_read_pause(ic);
2487
            else
2488
                av_read_play(ic);
2489
        }
2490
#if CONFIG_RTSP_DEMUXER
2491
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2492
            /* wait 10 ms to avoid trying to get another packet */
2493
            /* XXX: horrible */
2494
            SDL_Delay(10);
2495
            continue;
2496
        }
2497
#endif
2498
        if (is->seek_req) {
2499
            int64_t seek_target= is->seek_pos;
2500
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2501
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2502
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2503
//      of the seek_pos/seek_rel variables
2504

    
2505
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2506
            if (ret < 0) {
2507
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2508
            }else{
2509
                if (is->audio_stream >= 0) {
2510
                    packet_queue_flush(&is->audioq);
2511
                    packet_queue_put(&is->audioq, &flush_pkt);
2512
                }
2513
                if (is->subtitle_stream >= 0) {
2514
                    packet_queue_flush(&is->subtitleq);
2515
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2516
                }
2517
                if (is->video_stream >= 0) {
2518
                    packet_queue_flush(&is->videoq);
2519
                    packet_queue_put(&is->videoq, &flush_pkt);
2520
                }
2521
            }
2522
            is->seek_req = 0;
2523
            eof= 0;
2524
        }
2525

    
2526
        /* if the queue are full, no need to read more */
2527
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2528
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2529
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2530
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2531
            /* wait 10 ms */
2532
            SDL_Delay(10);
2533
            continue;
2534
        }
2535
        if(eof) {
2536
            if(is->video_stream >= 0){
2537
                av_init_packet(pkt);
2538
                pkt->data=NULL;
2539
                pkt->size=0;
2540
                pkt->stream_index= is->video_stream;
2541
                packet_queue_put(&is->videoq, pkt);
2542
            }
2543
            SDL_Delay(10);
2544
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2545
                if(loop!=1 && (!loop || --loop)){
2546
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2547
                }else if(autoexit){
2548
                    ret=AVERROR_EOF;
2549
                    goto fail;
2550
                }
2551
            }
2552
            eof=0;
2553
            continue;
2554
        }
2555
        ret = av_read_frame(ic, pkt);
2556
        if (ret < 0) {
2557
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2558
                eof=1;
2559
            if (ic->pb && ic->pb->error)
2560
                break;
2561
            SDL_Delay(100); /* wait for user event */
2562
            continue;
2563
        }
2564
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2565
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2566
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2567
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2568
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2569
                <= ((double)duration/1000000);
2570
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2571
            packet_queue_put(&is->audioq, pkt);
2572
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2573
            packet_queue_put(&is->videoq, pkt);
2574
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2575
            packet_queue_put(&is->subtitleq, pkt);
2576
        } else {
2577
            av_free_packet(pkt);
2578
        }
2579
    }
2580
    /* wait until the end */
2581
    while (!is->abort_request) {
2582
        SDL_Delay(100);
2583
    }
2584

    
2585
    ret = 0;
2586
 fail:
2587
    /* disable interrupting */
2588
    global_video_state = NULL;
2589

    
2590
    /* close each stream */
2591
    if (is->audio_stream >= 0)
2592
        stream_component_close(is, is->audio_stream);
2593
    if (is->video_stream >= 0)
2594
        stream_component_close(is, is->video_stream);
2595
    if (is->subtitle_stream >= 0)
2596
        stream_component_close(is, is->subtitle_stream);
2597
    if (is->ic) {
2598
        av_close_input_file(is->ic);
2599
        is->ic = NULL; /* safety */
2600
    }
2601
    avio_set_interrupt_cb(NULL);
2602

    
2603
    if (ret != 0) {
2604
        SDL_Event event;
2605

    
2606
        event.type = FF_QUIT_EVENT;
2607
        event.user.data1 = is;
2608
        SDL_PushEvent(&event);
2609
    }
2610
    return 0;
2611
}
2612

    
2613
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2614
{
2615
    VideoState *is;
2616

    
2617
    is = av_mallocz(sizeof(VideoState));
2618
    if (!is)
2619
        return NULL;
2620
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2621
    is->iformat = iformat;
2622
    is->ytop = 0;
2623
    is->xleft = 0;
2624

    
2625
    /* start video display */
2626
    is->pictq_mutex = SDL_CreateMutex();
2627
    is->pictq_cond = SDL_CreateCond();
2628

    
2629
    is->subpq_mutex = SDL_CreateMutex();
2630
    is->subpq_cond = SDL_CreateCond();
2631

    
2632
    is->av_sync_type = av_sync_type;
2633
    is->read_tid = SDL_CreateThread(read_thread, is);
2634
    if (!is->read_tid) {
2635
        av_free(is);
2636
        return NULL;
2637
    }
2638
    return is;
2639
}
2640

    
2641
static void stream_cycle_channel(VideoState *is, int codec_type)
2642
{
2643
    AVFormatContext *ic = is->ic;
2644
    int start_index, stream_index;
2645
    AVStream *st;
2646

    
2647
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2648
        start_index = is->video_stream;
2649
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2650
        start_index = is->audio_stream;
2651
    else
2652
        start_index = is->subtitle_stream;
2653
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2654
        return;
2655
    stream_index = start_index;
2656
    for(;;) {
2657
        if (++stream_index >= is->ic->nb_streams)
2658
        {
2659
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2660
            {
2661
                stream_index = -1;
2662
                goto the_end;
2663
            } else
2664
                stream_index = 0;
2665
        }
2666
        if (stream_index == start_index)
2667
            return;
2668
        st = ic->streams[stream_index];
2669
        if (st->codec->codec_type == codec_type) {
2670
            /* check that parameters are OK */
2671
            switch(codec_type) {
2672
            case AVMEDIA_TYPE_AUDIO:
2673
                if (st->codec->sample_rate != 0 &&
2674
                    st->codec->channels != 0)
2675
                    goto the_end;
2676
                break;
2677
            case AVMEDIA_TYPE_VIDEO:
2678
            case AVMEDIA_TYPE_SUBTITLE:
2679
                goto the_end;
2680
            default:
2681
                break;
2682
            }
2683
        }
2684
    }
2685
 the_end:
2686
    stream_component_close(is, start_index);
2687
    stream_component_open(is, stream_index);
2688
}
2689

    
2690

    
2691
static void toggle_full_screen(void)
2692
{
2693
    is_full_screen = !is_full_screen;
2694
    if (!fs_screen_width) {
2695
        /* use default SDL method */
2696
//        SDL_WM_ToggleFullScreen(screen);
2697
    }
2698
    video_open(cur_stream);
2699
}
2700

    
2701
static void toggle_pause(void)
2702
{
2703
    if (cur_stream)
2704
        stream_toggle_pause(cur_stream);
2705
    step = 0;
2706
}
2707

    
2708
static void step_to_next_frame(void)
2709
{
2710
    if (cur_stream) {
2711
        /* if the stream is paused unpause it, then step */
2712
        if (cur_stream->paused)
2713
            stream_toggle_pause(cur_stream);
2714
    }
2715
    step = 1;
2716
}
2717

    
2718
static void toggle_audio_display(void)
2719
{
2720
    if (cur_stream) {
2721
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2722
        cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2723
        fill_rectangle(screen,
2724
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2725
                    bgcolor);
2726
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2727
    }
2728
}
2729

    
2730
/* handle an event sent by the GUI */
2731
static void event_loop(void)
2732
{
2733
    SDL_Event event;
2734
    double incr, pos, frac;
2735

    
2736
    for(;;) {
2737
        double x;
2738
        SDL_WaitEvent(&event);
2739
        switch(event.type) {
2740
        case SDL_KEYDOWN:
2741
            if (exit_on_keydown) {
2742
                do_exit();
2743
                break;
2744
            }
2745
            switch(event.key.keysym.sym) {
2746
            case SDLK_ESCAPE:
2747
            case SDLK_q:
2748
                do_exit();
2749
                break;
2750
            case SDLK_f:
2751
                toggle_full_screen();
2752
                break;
2753
            case SDLK_p:
2754
            case SDLK_SPACE:
2755
                toggle_pause();
2756
                break;
2757
            case SDLK_s: //S: Step to next frame
2758
                step_to_next_frame();
2759
                break;
2760
            case SDLK_a:
2761
                if (cur_stream)
2762
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2763
                break;
2764
            case SDLK_v:
2765
                if (cur_stream)
2766
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2767
                break;
2768
            case SDLK_t:
2769
                if (cur_stream)
2770
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2771
                break;
2772
            case SDLK_w:
2773
                toggle_audio_display();
2774
                break;
2775
            case SDLK_LEFT:
2776
                incr = -10.0;
2777
                goto do_seek;
2778
            case SDLK_RIGHT:
2779
                incr = 10.0;
2780
                goto do_seek;
2781
            case SDLK_UP:
2782
                incr = 60.0;
2783
                goto do_seek;
2784
            case SDLK_DOWN:
2785
                incr = -60.0;
2786
            do_seek:
2787
                if (cur_stream) {
2788
                    if (seek_by_bytes) {
2789
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2790
                            pos= cur_stream->video_current_pos;
2791
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2792
                            pos= cur_stream->audio_pkt.pos;
2793
                        }else
2794
                            pos = avio_tell(cur_stream->ic->pb);
2795
                        if (cur_stream->ic->bit_rate)
2796
                            incr *= cur_stream->ic->bit_rate / 8.0;
2797
                        else
2798
                            incr *= 180000.0;
2799
                        pos += incr;
2800
                        stream_seek(cur_stream, pos, incr, 1);
2801
                    } else {
2802
                        pos = get_master_clock(cur_stream);
2803
                        pos += incr;
2804
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2805
                    }
2806
                }
2807
                break;
2808
            default:
2809
                break;
2810
            }
2811
            break;
2812
        case SDL_MOUSEBUTTONDOWN:
2813
            if (exit_on_mousedown) {
2814
                do_exit();
2815
                break;
2816
            }
2817
        case SDL_MOUSEMOTION:
2818
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2819
                x= event.button.x;
2820
            }else{
2821
                if(event.motion.state != SDL_PRESSED)
2822
                    break;
2823
                x= event.motion.x;
2824
            }
2825
            if (cur_stream) {
2826
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2827
                    uint64_t size=  avio_size(cur_stream->ic->pb);
2828
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2829
                }else{
2830
                    int64_t ts;
2831
                    int ns, hh, mm, ss;
2832
                    int tns, thh, tmm, tss;
2833
                    tns = cur_stream->ic->duration/1000000LL;
2834
                    thh = tns/3600;
2835
                    tmm = (tns%3600)/60;
2836
                    tss = (tns%60);
2837
                    frac = x/cur_stream->width;
2838
                    ns = frac*tns;
2839
                    hh = ns/3600;
2840
                    mm = (ns%3600)/60;
2841
                    ss = (ns%60);
2842
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2843
                            hh, mm, ss, thh, tmm, tss);
2844
                    ts = frac*cur_stream->ic->duration;
2845
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2846
                        ts += cur_stream->ic->start_time;
2847
                    stream_seek(cur_stream, ts, 0, 0);
2848
                }
2849
            }
2850
            break;
2851
        case SDL_VIDEORESIZE:
2852
            if (cur_stream) {
2853
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2854
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2855
                screen_width = cur_stream->width = event.resize.w;
2856
                screen_height= cur_stream->height= event.resize.h;
2857
            }
2858
            break;
2859
        case SDL_QUIT:
2860
        case FF_QUIT_EVENT:
2861
            do_exit();
2862
            break;
2863
        case FF_ALLOC_EVENT:
2864
            video_open(event.user.data1);
2865
            alloc_picture(event.user.data1);
2866
            break;
2867
        case FF_REFRESH_EVENT:
2868
            video_refresh(event.user.data1);
2869
            cur_stream->refresh=0;
2870
            break;
2871
        default:
2872
            break;
2873
        }
2874
    }
2875
}
2876

    
2877
static void opt_frame_size(const char *arg)
2878
{
2879
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2880
        fprintf(stderr, "Incorrect frame size\n");
2881
        exit(1);
2882
    }
2883
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2884
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2885
        exit(1);
2886
    }
2887
}
2888

    
2889
static int opt_width(const char *opt, const char *arg)
2890
{
2891
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2892
    return 0;
2893
}
2894

    
2895
static int opt_height(const char *opt, const char *arg)
2896
{
2897
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2898
    return 0;
2899
}
2900

    
2901
static void opt_format(const char *arg)
2902
{
2903
    file_iformat = av_find_input_format(arg);
2904
    if (!file_iformat) {
2905
        fprintf(stderr, "Unknown input format: %s\n", arg);
2906
        exit(1);
2907
    }
2908
}
2909

    
2910
static void opt_frame_pix_fmt(const char *arg)
2911
{
2912
    frame_pix_fmt = av_get_pix_fmt(arg);
2913
}
2914

    
2915
static int opt_sync(const char *opt, const char *arg)
2916
{
2917
    if (!strcmp(arg, "audio"))
2918
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2919
    else if (!strcmp(arg, "video"))
2920
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2921
    else if (!strcmp(arg, "ext"))
2922
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2923
    else {
2924
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2925
        exit(1);
2926
    }
2927
    return 0;
2928
}
2929

    
2930
static int opt_seek(const char *opt, const char *arg)
2931
{
2932
    start_time = parse_time_or_die(opt, arg, 1);
2933
    return 0;
2934
}
2935

    
2936
static int opt_duration(const char *opt, const char *arg)
2937
{
2938
    duration = parse_time_or_die(opt, arg, 1);
2939
    return 0;
2940
}
2941

    
2942
static int opt_debug(const char *opt, const char *arg)
2943
{
2944
    av_log_set_level(99);
2945
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2946
    return 0;
2947
}
2948

    
2949
static int opt_vismv(const char *opt, const char *arg)
2950
{
2951
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2952
    return 0;
2953
}
2954

    
2955
static int opt_thread_count(const char *opt, const char *arg)
2956
{
2957
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2958
#if !HAVE_THREADS
2959
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2960
#endif
2961
    return 0;
2962
}
2963

    
2964
static int opt_show_mode(const char *opt, const char *arg)
2965
{
2966
    show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2967
                !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2968
                !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT  :
2969
                parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2970
    return 0;
2971
}
2972

    
2973
static const OptionDef options[] = {
2974
#include "cmdutils_common_opts.h"
2975
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2976
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2977
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2978
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2979
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2980
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2981
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2982
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2983
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2984
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2985
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
2986
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2987
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2988
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2989
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2990
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2991
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2992
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2993
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2994
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2995
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2996
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2997
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2998
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2999
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3000
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3001
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3002
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3003
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3004
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3005
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3006
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3007
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3008
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3009
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3010
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3011
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3012
#if CONFIG_AVFILTER
3013
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3014
#endif
3015
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3016
    { "showmode", HAS_ARG | OPT_FUNC2, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3017
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3018
    { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3019
    { NULL, },
3020
};
3021

    
3022
static void show_usage(void)
3023
{
3024
    printf("Simple media player\n");
3025
    printf("usage: ffplay [options] input_file\n");
3026
    printf("\n");
3027
}
3028

    
3029
static void show_help(void)
3030
{
3031
    av_log_set_callback(log_callback_help);
3032
    show_usage();
3033
    show_help_options(options, "Main options:\n",
3034
                      OPT_EXPERT, 0);
3035
    show_help_options(options, "\nAdvanced options:\n",
3036
                      OPT_EXPERT, OPT_EXPERT);
3037
    printf("\n");
3038
    av_opt_show2(avcodec_opts[0], NULL,
3039
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3040
    printf("\n");
3041
    av_opt_show2(avformat_opts, NULL,
3042
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3043
#if !CONFIG_AVFILTER
3044
    printf("\n");
3045
    av_opt_show2(sws_opts, NULL,
3046
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3047
#endif
3048
    printf("\nWhile playing:\n"
3049
           "q, ESC              quit\n"
3050
           "f                   toggle full screen\n"
3051
           "p, SPC              pause\n"
3052
           "a                   cycle audio channel\n"
3053
           "v                   cycle video channel\n"
3054
           "t                   cycle subtitle channel\n"
3055
           "w                   show audio waves\n"
3056
           "s                   activate frame-step mode\n"
3057
           "left/right          seek backward/forward 10 seconds\n"
3058
           "down/up             seek backward/forward 1 minute\n"
3059
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3060
           );
3061
}
3062

    
3063
static void opt_input_file(const char *filename)
3064
{
3065
    if (input_filename) {
3066
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3067
                filename, input_filename);
3068
        exit(1);
3069
    }
3070
    if (!strcmp(filename, "-"))
3071
        filename = "pipe:";
3072
    input_filename = filename;
3073
}
3074

    
3075
/* Called from the main */
3076
int main(int argc, char **argv)
3077
{
3078
    int flags;
3079

    
3080
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3081

    
3082
    /* register all codecs, demux and protocols */
3083
    avcodec_register_all();
3084
#if CONFIG_AVDEVICE
3085
    avdevice_register_all();
3086
#endif
3087
#if CONFIG_AVFILTER
3088
    avfilter_register_all();
3089
#endif
3090
    av_register_all();
3091

    
3092
    init_opts();
3093

    
3094
    show_banner();
3095

    
3096
    parse_options(argc, argv, options, opt_input_file);
3097

    
3098
    if (!input_filename) {
3099
        show_usage();
3100
        fprintf(stderr, "An input file must be specified\n");
3101
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3102
        exit(1);
3103
    }
3104

    
3105
    if (display_disable) {
3106
        video_disable = 1;
3107
    }
3108
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3109
#if !defined(__MINGW32__) && !defined(__APPLE__)
3110
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3111
#endif
3112
    if (SDL_Init (flags)) {
3113
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3114
        exit(1);
3115
    }
3116

    
3117
    if (!display_disable) {
3118
#if HAVE_SDL_VIDEO_SIZE
3119
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3120
        fs_screen_width = vi->current_w;
3121
        fs_screen_height = vi->current_h;
3122
#endif
3123
    }
3124

    
3125
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3126
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3127
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3128

    
3129
    av_init_packet(&flush_pkt);
3130
    flush_pkt.data= "FLUSH";
3131

    
3132
    cur_stream = stream_open(input_filename, file_iformat);
3133

    
3134
    event_loop();
3135

    
3136
    /* never returns */
3137

    
3138
    return 0;
3139
}