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ffmpeg / ffplay.c @ f8b8c694

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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
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 * 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

    
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#include "config.h"
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#include <inttypes.h>
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#include <math.h>
27
#include <limits.h>
28
#include "libavutil/avstring.h"
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#include "libavutil/colorspace.h"
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#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"
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#include "libavdevice/avdevice.h"
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#include "libswscale/swscale.h"
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#include "libavcodec/audioconvert.h"
39
#include "libavcodec/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>
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#include <SDL_thread.h>
51

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

    
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#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)
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#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
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#define MIN_FRAMES 5
68

    
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/* 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 */
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#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
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    int64_t pos;                                 ///<byte position in file
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    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 *parse_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 {
171
        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
    //    QETimer *video_timer;
210
    char filename[1024];
211
    int width, height, xleft, ytop;
212

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

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

    
222
static void show_help(void);
223

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

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

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

    
279
static AVPacket flush_pkt;
280

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

    
285
static SDL_Surface *screen;
286

    
287
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
288
{
289
    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->pixel_aspect.num == 0)
696
             aspect_ratio = 0;
697
         else
698
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
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 = width;
756
        rect.h = height;
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_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_timer(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->parse_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
/**
1363
 *
1364
 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1365
 */
1366
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1367
{
1368
    VideoPicture *vp;
1369

    
1370
    /* wait until we have space to put a new picture */
1371
    SDL_LockMutex(is->pictq_mutex);
1372

    
1373
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1374
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1375

    
1376
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1377
           !is->videoq.abort_request) {
1378
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1379
    }
1380
    SDL_UnlockMutex(is->pictq_mutex);
1381

    
1382
    if (is->videoq.abort_request)
1383
        return -1;
1384

    
1385
    vp = &is->pictq[is->pictq_windex];
1386

    
1387
    /* alloc or resize hardware picture buffer */
1388
    if (!vp->bmp ||
1389
#if CONFIG_AVFILTER
1390
        vp->width  != is->out_video_filter->inputs[0]->w ||
1391
        vp->height != is->out_video_filter->inputs[0]->h) {
1392
#else
1393
        vp->width != is->video_st->codec->width ||
1394
        vp->height != is->video_st->codec->height) {
1395
#endif
1396
        SDL_Event event;
1397

    
1398
        vp->allocated = 0;
1399

    
1400
        /* the allocation must be done in the main thread to avoid
1401
           locking problems */
1402
        event.type = FF_ALLOC_EVENT;
1403
        event.user.data1 = is;
1404
        SDL_PushEvent(&event);
1405

    
1406
        /* wait until the picture is allocated */
1407
        SDL_LockMutex(is->pictq_mutex);
1408
        while (!vp->allocated && !is->videoq.abort_request) {
1409
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1410
        }
1411
        SDL_UnlockMutex(is->pictq_mutex);
1412

    
1413
        if (is->videoq.abort_request)
1414
            return -1;
1415
    }
1416

    
1417
    /* if the frame is not skipped, then display it */
1418
    if (vp->bmp) {
1419
        AVPicture pict;
1420
#if CONFIG_AVFILTER
1421
        if(vp->picref)
1422
            avfilter_unref_buffer(vp->picref);
1423
        vp->picref = src_frame->opaque;
1424
#endif
1425

    
1426
        /* get a pointer on the bitmap */
1427
        SDL_LockYUVOverlay (vp->bmp);
1428

    
1429
        memset(&pict,0,sizeof(AVPicture));
1430
        pict.data[0] = vp->bmp->pixels[0];
1431
        pict.data[1] = vp->bmp->pixels[2];
1432
        pict.data[2] = vp->bmp->pixels[1];
1433

    
1434
        pict.linesize[0] = vp->bmp->pitches[0];
1435
        pict.linesize[1] = vp->bmp->pitches[2];
1436
        pict.linesize[2] = vp->bmp->pitches[1];
1437

    
1438
#if CONFIG_AVFILTER
1439
        //FIXME use direct rendering
1440
        av_picture_copy(&pict, (AVPicture *)src_frame,
1441
                        vp->pix_fmt, vp->width, vp->height);
1442
#else
1443
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1444
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1445
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1446
            PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1447
        if (is->img_convert_ctx == NULL) {
1448
            fprintf(stderr, "Cannot initialize the conversion context\n");
1449
            exit(1);
1450
        }
1451
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1452
                  0, vp->height, pict.data, pict.linesize);
1453
#endif
1454
        /* update the bitmap content */
1455
        SDL_UnlockYUVOverlay(vp->bmp);
1456

    
1457
        vp->pts = pts;
1458
        vp->pos = pos;
1459

    
1460
        /* now we can update the picture count */
1461
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1462
            is->pictq_windex = 0;
1463
        SDL_LockMutex(is->pictq_mutex);
1464
        vp->target_clock= compute_target_time(vp->pts, is);
1465

    
1466
        is->pictq_size++;
1467
        SDL_UnlockMutex(is->pictq_mutex);
1468
    }
1469
    return 0;
1470
}
1471

    
1472
/**
1473
 * compute the exact PTS for the picture if it is omitted in the stream
1474
 * @param pts1 the dts of the pkt / pts of the frame
1475
 */
1476
static int output_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1477
{
1478
    double frame_delay, pts;
1479

    
1480
    pts = pts1;
1481

    
1482
    if (pts != 0) {
1483
        /* update video clock with pts, if present */
1484
        is->video_clock = pts;
1485
    } else {
1486
        pts = is->video_clock;
1487
    }
1488
    /* update video clock for next frame */
1489
    frame_delay = av_q2d(is->video_st->codec->time_base);
1490
    /* for MPEG2, the frame can be repeated, so we update the
1491
       clock accordingly */
1492
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1493
    is->video_clock += frame_delay;
1494

    
1495
#if defined(DEBUG_SYNC) && 0
1496
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1497
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1498
#endif
1499
    return queue_picture(is, src_frame, pts, pos);
1500
}
1501

    
1502
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1503
{
1504
    int len1, got_picture, i;
1505

    
1506
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1507
        return -1;
1508

    
1509
    if (pkt->data == flush_pkt.data) {
1510
        avcodec_flush_buffers(is->video_st->codec);
1511

    
1512
        SDL_LockMutex(is->pictq_mutex);
1513
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1514
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1515
            is->pictq[i].target_clock= 0;
1516
        }
1517
        while (is->pictq_size && !is->videoq.abort_request) {
1518
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1519
        }
1520
        is->video_current_pos = -1;
1521
        SDL_UnlockMutex(is->pictq_mutex);
1522

    
1523
        is->frame_last_pts = AV_NOPTS_VALUE;
1524
        is->frame_last_delay = 0;
1525
        is->frame_timer = (double)av_gettime() / 1000000.0;
1526
        is->skip_frames = 1;
1527
        is->skip_frames_index = 0;
1528
        return 0;
1529
    }
1530

    
1531
    len1 = avcodec_decode_video2(is->video_st->codec,
1532
                                 frame, &got_picture,
1533
                                 pkt);
1534

    
1535
    if (got_picture) {
1536
        if (decoder_reorder_pts == -1) {
1537
            *pts = frame->best_effort_timestamp;
1538
        } else if (decoder_reorder_pts) {
1539
            *pts = frame->pkt_pts;
1540
        } else {
1541
            *pts = frame->pkt_dts;
1542
        }
1543

    
1544
        if (*pts == AV_NOPTS_VALUE) {
1545
            *pts = 0;
1546
        }
1547

    
1548
        is->skip_frames_index += 1;
1549
        if(is->skip_frames_index >= is->skip_frames){
1550
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1551
            return 1;
1552
        }
1553

    
1554
    }
1555
    return 0;
1556
}
1557

    
1558
#if CONFIG_AVFILTER
1559
typedef struct {
1560
    VideoState *is;
1561
    AVFrame *frame;
1562
    int use_dr1;
1563
} FilterPriv;
1564

    
1565
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1566
{
1567
    AVFilterContext *ctx = codec->opaque;
1568
    AVFilterBufferRef  *ref;
1569
    int perms = AV_PERM_WRITE;
1570
    int i, w, h, stride[4];
1571
    unsigned edge;
1572
    int pixel_size;
1573

    
1574
    av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1575

    
1576
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1577
        perms |= AV_PERM_NEG_LINESIZES;
1578

    
1579
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1580
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1581
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1582
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1583
    }
1584
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1585

    
1586
    w = codec->width;
1587
    h = codec->height;
1588

    
1589
    if(av_image_check_size(w, h, 0, codec))
1590
        return -1;
1591

    
1592
    avcodec_align_dimensions2(codec, &w, &h, stride);
1593
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1594
    w += edge << 1;
1595
    h += edge << 1;
1596

    
1597
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1598
        return -1;
1599

    
1600
    pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1601
    ref->video->w = codec->width;
1602
    ref->video->h = codec->height;
1603
    for(i = 0; i < 4; i ++) {
1604
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1605
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1606

    
1607
        if (ref->data[i]) {
1608
            ref->data[i]    += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1609
        }
1610
        pic->data[i]     = ref->data[i];
1611
        pic->linesize[i] = ref->linesize[i];
1612
    }
1613
    pic->opaque = ref;
1614
    pic->age    = INT_MAX;
1615
    pic->type   = FF_BUFFER_TYPE_USER;
1616
    pic->reordered_opaque = codec->reordered_opaque;
1617
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1618
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1619
    return 0;
1620
}
1621

    
1622
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1623
{
1624
    memset(pic->data, 0, sizeof(pic->data));
1625
    avfilter_unref_buffer(pic->opaque);
1626
}
1627

    
1628
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1629
{
1630
    AVFilterBufferRef *ref = pic->opaque;
1631

    
1632
    if (pic->data[0] == NULL) {
1633
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1634
        return codec->get_buffer(codec, pic);
1635
    }
1636

    
1637
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1638
        (codec->pix_fmt != ref->format)) {
1639
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1640
        return -1;
1641
    }
1642

    
1643
    pic->reordered_opaque = codec->reordered_opaque;
1644
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1645
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1646
    return 0;
1647
}
1648

    
1649
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1650
{
1651
    FilterPriv *priv = ctx->priv;
1652
    AVCodecContext *codec;
1653
    if(!opaque) return -1;
1654

    
1655
    priv->is = opaque;
1656
    codec    = priv->is->video_st->codec;
1657
    codec->opaque = ctx;
1658
    if((codec->codec->capabilities & CODEC_CAP_DR1)
1659
    ) {
1660
        codec->flags |= CODEC_FLAG_EMU_EDGE;
1661
        priv->use_dr1 = 1;
1662
        codec->get_buffer     = input_get_buffer;
1663
        codec->release_buffer = input_release_buffer;
1664
        codec->reget_buffer   = input_reget_buffer;
1665
        codec->thread_safe_callbacks = 1;
1666
    }
1667

    
1668
    priv->frame = avcodec_alloc_frame();
1669

    
1670
    return 0;
1671
}
1672

    
1673
static void input_uninit(AVFilterContext *ctx)
1674
{
1675
    FilterPriv *priv = ctx->priv;
1676
    av_free(priv->frame);
1677
}
1678

    
1679
static int input_request_frame(AVFilterLink *link)
1680
{
1681
    FilterPriv *priv = link->src->priv;
1682
    AVFilterBufferRef *picref;
1683
    int64_t pts = 0;
1684
    AVPacket pkt;
1685
    int ret;
1686

    
1687
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1688
        av_free_packet(&pkt);
1689
    if (ret < 0)
1690
        return -1;
1691

    
1692
    if(priv->use_dr1) {
1693
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1694
    } else {
1695
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1696
        av_image_copy(picref->data, picref->linesize,
1697
                      priv->frame->data, priv->frame->linesize,
1698
                      picref->format, link->w, link->h);
1699
    }
1700
    av_free_packet(&pkt);
1701

    
1702
    picref->pts = pts;
1703
    picref->pos = pkt.pos;
1704
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1705
    avfilter_start_frame(link, picref);
1706
    avfilter_draw_slice(link, 0, link->h, 1);
1707
    avfilter_end_frame(link);
1708

    
1709
    return 0;
1710
}
1711

    
1712
static int input_query_formats(AVFilterContext *ctx)
1713
{
1714
    FilterPriv *priv = ctx->priv;
1715
    enum PixelFormat pix_fmts[] = {
1716
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1717
    };
1718

    
1719
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1720
    return 0;
1721
}
1722

    
1723
static int input_config_props(AVFilterLink *link)
1724
{
1725
    FilterPriv *priv  = link->src->priv;
1726
    AVCodecContext *c = priv->is->video_st->codec;
1727

    
1728
    link->w = c->width;
1729
    link->h = c->height;
1730
    link->time_base = priv->is->video_st->time_base;
1731

    
1732
    return 0;
1733
}
1734

    
1735
static AVFilter input_filter =
1736
{
1737
    .name      = "ffplay_input",
1738

    
1739
    .priv_size = sizeof(FilterPriv),
1740

    
1741
    .init      = input_init,
1742
    .uninit    = input_uninit,
1743

    
1744
    .query_formats = input_query_formats,
1745

    
1746
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1747
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1748
                                    .type = AVMEDIA_TYPE_VIDEO,
1749
                                    .request_frame = input_request_frame,
1750
                                    .config_props  = input_config_props, },
1751
                                  { .name = NULL }},
1752
};
1753

    
1754
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1755
{
1756
    char sws_flags_str[128];
1757
    int ret;
1758
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1759
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1760
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1761
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1762

    
1763
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1764
                                            NULL, is, graph)) < 0)
1765
        goto the_end;
1766
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1767
                                            NULL, &ffsink_ctx, graph)) < 0)
1768
        goto the_end;
1769

    
1770
    if(vfilters) {
1771
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1772
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1773

    
1774
        outputs->name    = av_strdup("in");
1775
        outputs->filter_ctx = filt_src;
1776
        outputs->pad_idx = 0;
1777
        outputs->next    = NULL;
1778

    
1779
        inputs->name    = av_strdup("out");
1780
        inputs->filter_ctx = filt_out;
1781
        inputs->pad_idx = 0;
1782
        inputs->next    = NULL;
1783

    
1784
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1785
            goto the_end;
1786
        av_freep(&vfilters);
1787
    } else {
1788
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1789
            goto the_end;
1790
    }
1791

    
1792
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1793
        goto the_end;
1794

    
1795
    is->out_video_filter = filt_out;
1796
the_end:
1797
    return ret;
1798
}
1799

    
1800
#endif  /* CONFIG_AVFILTER */
1801

    
1802
static int video_thread(void *arg)
1803
{
1804
    VideoState *is = arg;
1805
    AVFrame *frame= avcodec_alloc_frame();
1806
    int64_t pts_int;
1807
    double pts;
1808
    int ret;
1809

    
1810
#if CONFIG_AVFILTER
1811
    AVFilterGraph *graph = avfilter_graph_alloc();
1812
    AVFilterContext *filt_out = NULL;
1813
    int64_t pos;
1814

    
1815
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1816
        goto the_end;
1817
    filt_out = is->out_video_filter;
1818
#endif
1819

    
1820
    for(;;) {
1821
#if !CONFIG_AVFILTER
1822
        AVPacket pkt;
1823
#else
1824
        AVFilterBufferRef *picref;
1825
        AVRational tb;
1826
#endif
1827
        while (is->paused && !is->videoq.abort_request)
1828
            SDL_Delay(10);
1829
#if CONFIG_AVFILTER
1830
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1831
        if (picref) {
1832
            pts_int = picref->pts;
1833
            pos     = picref->pos;
1834
            frame->opaque = picref;
1835
        }
1836

    
1837
        if (av_cmp_q(tb, is->video_st->time_base)) {
1838
            av_unused int64_t pts1 = pts_int;
1839
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1840
            av_dlog(NULL, "video_thread(): "
1841
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1842
                    tb.num, tb.den, pts1,
1843
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1844
        }
1845
#else
1846
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1847
#endif
1848

    
1849
        if (ret < 0) goto the_end;
1850

    
1851
        if (!ret)
1852
            continue;
1853

    
1854
        pts = pts_int*av_q2d(is->video_st->time_base);
1855

    
1856
#if CONFIG_AVFILTER
1857
        ret = output_picture(is, frame, pts, pos);
1858
#else
1859
        ret = output_picture(is, frame, pts,  pkt.pos);
1860
        av_free_packet(&pkt);
1861
#endif
1862
        if (ret < 0)
1863
            goto the_end;
1864

    
1865
        if (step)
1866
            if (cur_stream)
1867
                stream_pause(cur_stream);
1868
    }
1869
 the_end:
1870
#if CONFIG_AVFILTER
1871
    avfilter_graph_free(&graph);
1872
#endif
1873
    av_free(frame);
1874
    return 0;
1875
}
1876

    
1877
static int subtitle_thread(void *arg)
1878
{
1879
    VideoState *is = arg;
1880
    SubPicture *sp;
1881
    AVPacket pkt1, *pkt = &pkt1;
1882
    int len1, got_subtitle;
1883
    double pts;
1884
    int i, j;
1885
    int r, g, b, y, u, v, a;
1886

    
1887
    for(;;) {
1888
        while (is->paused && !is->subtitleq.abort_request) {
1889
            SDL_Delay(10);
1890
        }
1891
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1892
            break;
1893

    
1894
        if(pkt->data == flush_pkt.data){
1895
            avcodec_flush_buffers(is->subtitle_st->codec);
1896
            continue;
1897
        }
1898
        SDL_LockMutex(is->subpq_mutex);
1899
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1900
               !is->subtitleq.abort_request) {
1901
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1902
        }
1903
        SDL_UnlockMutex(is->subpq_mutex);
1904

    
1905
        if (is->subtitleq.abort_request)
1906
            goto the_end;
1907

    
1908
        sp = &is->subpq[is->subpq_windex];
1909

    
1910
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1911
           this packet, if any */
1912
        pts = 0;
1913
        if (pkt->pts != AV_NOPTS_VALUE)
1914
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1915

    
1916
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1917
                                    &sp->sub, &got_subtitle,
1918
                                    pkt);
1919
//            if (len1 < 0)
1920
//                break;
1921
        if (got_subtitle && sp->sub.format == 0) {
1922
            sp->pts = pts;
1923

    
1924
            for (i = 0; i < sp->sub.num_rects; i++)
1925
            {
1926
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1927
                {
1928
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1929
                    y = RGB_TO_Y_CCIR(r, g, b);
1930
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1931
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1932
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1933
                }
1934
            }
1935

    
1936
            /* now we can update the picture count */
1937
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1938
                is->subpq_windex = 0;
1939
            SDL_LockMutex(is->subpq_mutex);
1940
            is->subpq_size++;
1941
            SDL_UnlockMutex(is->subpq_mutex);
1942
        }
1943
        av_free_packet(pkt);
1944
//        if (step)
1945
//            if (cur_stream)
1946
//                stream_pause(cur_stream);
1947
    }
1948
 the_end:
1949
    return 0;
1950
}
1951

    
1952
/* copy samples for viewing in editor window */
1953
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1954
{
1955
    int size, len, channels;
1956

    
1957
    channels = is->audio_st->codec->channels;
1958

    
1959
    size = samples_size / sizeof(short);
1960
    while (size > 0) {
1961
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1962
        if (len > size)
1963
            len = size;
1964
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1965
        samples += len;
1966
        is->sample_array_index += len;
1967
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1968
            is->sample_array_index = 0;
1969
        size -= len;
1970
    }
1971
}
1972

    
1973
/* return the new audio buffer size (samples can be added or deleted
1974
   to get better sync if video or external master clock) */
1975
static int synchronize_audio(VideoState *is, short *samples,
1976
                             int samples_size1, double pts)
1977
{
1978
    int n, samples_size;
1979
    double ref_clock;
1980

    
1981
    n = 2 * is->audio_st->codec->channels;
1982
    samples_size = samples_size1;
1983

    
1984
    /* if not master, then we try to remove or add samples to correct the clock */
1985
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1986
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1987
        double diff, avg_diff;
1988
        int wanted_size, min_size, max_size, nb_samples;
1989

    
1990
        ref_clock = get_master_clock(is);
1991
        diff = get_audio_clock(is) - ref_clock;
1992

    
1993
        if (diff < AV_NOSYNC_THRESHOLD) {
1994
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1995
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1996
                /* not enough measures to have a correct estimate */
1997
                is->audio_diff_avg_count++;
1998
            } else {
1999
                /* estimate the A-V difference */
2000
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2001

    
2002
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2003
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2004
                    nb_samples = samples_size / n;
2005

    
2006
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2007
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2008
                    if (wanted_size < min_size)
2009
                        wanted_size = min_size;
2010
                    else if (wanted_size > max_size)
2011
                        wanted_size = max_size;
2012

    
2013
                    /* add or remove samples to correction the synchro */
2014
                    if (wanted_size < samples_size) {
2015
                        /* remove samples */
2016
                        samples_size = wanted_size;
2017
                    } else if (wanted_size > samples_size) {
2018
                        uint8_t *samples_end, *q;
2019
                        int nb;
2020

    
2021
                        /* add samples */
2022
                        nb = (samples_size - wanted_size);
2023
                        samples_end = (uint8_t *)samples + samples_size - n;
2024
                        q = samples_end + n;
2025
                        while (nb > 0) {
2026
                            memcpy(q, samples_end, n);
2027
                            q += n;
2028
                            nb -= n;
2029
                        }
2030
                        samples_size = wanted_size;
2031
                    }
2032
                }
2033
#if 0
2034
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2035
                       diff, avg_diff, samples_size - samples_size1,
2036
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2037
#endif
2038
            }
2039
        } else {
2040
            /* too big difference : may be initial PTS errors, so
2041
               reset A-V filter */
2042
            is->audio_diff_avg_count = 0;
2043
            is->audio_diff_cum = 0;
2044
        }
2045
    }
2046

    
2047
    return samples_size;
2048
}
2049

    
2050
/* decode one audio frame and returns its uncompressed size */
2051
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2052
{
2053
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2054
    AVPacket *pkt = &is->audio_pkt;
2055
    AVCodecContext *dec= is->audio_st->codec;
2056
    int n, len1, data_size;
2057
    double pts;
2058

    
2059
    for(;;) {
2060
        /* NOTE: the audio packet can contain several frames */
2061
        while (pkt_temp->size > 0) {
2062
            data_size = sizeof(is->audio_buf1);
2063
            len1 = avcodec_decode_audio3(dec,
2064
                                        (int16_t *)is->audio_buf1, &data_size,
2065
                                        pkt_temp);
2066
            if (len1 < 0) {
2067
                /* if error, we skip the frame */
2068
                pkt_temp->size = 0;
2069
                break;
2070
            }
2071

    
2072
            pkt_temp->data += len1;
2073
            pkt_temp->size -= len1;
2074
            if (data_size <= 0)
2075
                continue;
2076

    
2077
            if (dec->sample_fmt != is->audio_src_fmt) {
2078
                if (is->reformat_ctx)
2079
                    av_audio_convert_free(is->reformat_ctx);
2080
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2081
                                                         dec->sample_fmt, 1, NULL, 0);
2082
                if (!is->reformat_ctx) {
2083
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2084
                        av_get_sample_fmt_name(dec->sample_fmt),
2085
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2086
                        break;
2087
                }
2088
                is->audio_src_fmt= dec->sample_fmt;
2089
            }
2090

    
2091
            if (is->reformat_ctx) {
2092
                const void *ibuf[6]= {is->audio_buf1};
2093
                void *obuf[6]= {is->audio_buf2};
2094
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2095
                int ostride[6]= {2};
2096
                int len= data_size/istride[0];
2097
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2098
                    printf("av_audio_convert() failed\n");
2099
                    break;
2100
                }
2101
                is->audio_buf= is->audio_buf2;
2102
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2103
                          remove this legacy cruft */
2104
                data_size= len*2;
2105
            }else{
2106
                is->audio_buf= is->audio_buf1;
2107
            }
2108

    
2109
            /* if no pts, then compute it */
2110
            pts = is->audio_clock;
2111
            *pts_ptr = pts;
2112
            n = 2 * dec->channels;
2113
            is->audio_clock += (double)data_size /
2114
                (double)(n * dec->sample_rate);
2115
#if defined(DEBUG_SYNC)
2116
            {
2117
                static double last_clock;
2118
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2119
                       is->audio_clock - last_clock,
2120
                       is->audio_clock, pts);
2121
                last_clock = is->audio_clock;
2122
            }
2123
#endif
2124
            return data_size;
2125
        }
2126

    
2127
        /* free the current packet */
2128
        if (pkt->data)
2129
            av_free_packet(pkt);
2130

    
2131
        if (is->paused || is->audioq.abort_request) {
2132
            return -1;
2133
        }
2134

    
2135
        /* read next packet */
2136
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2137
            return -1;
2138
        if(pkt->data == flush_pkt.data){
2139
            avcodec_flush_buffers(dec);
2140
            continue;
2141
        }
2142

    
2143
        pkt_temp->data = pkt->data;
2144
        pkt_temp->size = pkt->size;
2145

    
2146
        /* if update the audio clock with the pts */
2147
        if (pkt->pts != AV_NOPTS_VALUE) {
2148
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2149
        }
2150
    }
2151
}
2152

    
2153
/* prepare a new audio buffer */
2154
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2155
{
2156
    VideoState *is = opaque;
2157
    int audio_size, len1;
2158
    double pts;
2159

    
2160
    audio_callback_time = av_gettime();
2161

    
2162
    while (len > 0) {
2163
        if (is->audio_buf_index >= is->audio_buf_size) {
2164
           audio_size = audio_decode_frame(is, &pts);
2165
           if (audio_size < 0) {
2166
                /* if error, just output silence */
2167
               is->audio_buf = is->audio_buf1;
2168
               is->audio_buf_size = 1024;
2169
               memset(is->audio_buf, 0, is->audio_buf_size);
2170
           } else {
2171
               if (is->show_mode != SHOW_MODE_VIDEO)
2172
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2173
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2174
                                              pts);
2175
               is->audio_buf_size = audio_size;
2176
           }
2177
           is->audio_buf_index = 0;
2178
        }
2179
        len1 = is->audio_buf_size - is->audio_buf_index;
2180
        if (len1 > len)
2181
            len1 = len;
2182
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2183
        len -= len1;
2184
        stream += len1;
2185
        is->audio_buf_index += len1;
2186
    }
2187
}
2188

    
2189
/* open a given stream. Return 0 if OK */
2190
static int stream_component_open(VideoState *is, int stream_index)
2191
{
2192
    AVFormatContext *ic = is->ic;
2193
    AVCodecContext *avctx;
2194
    AVCodec *codec;
2195
    SDL_AudioSpec wanted_spec, spec;
2196

    
2197
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2198
        return -1;
2199
    avctx = ic->streams[stream_index]->codec;
2200

    
2201
    /* prepare audio output */
2202
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2203
        if (avctx->channels > 0) {
2204
            avctx->request_channels = FFMIN(2, avctx->channels);
2205
        } else {
2206
            avctx->request_channels = 2;
2207
        }
2208
    }
2209

    
2210
    codec = avcodec_find_decoder(avctx->codec_id);
2211
    avctx->debug_mv = debug_mv;
2212
    avctx->debug = debug;
2213
    avctx->workaround_bugs = workaround_bugs;
2214
    avctx->lowres = lowres;
2215
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2216
    avctx->idct_algo= idct;
2217
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2218
    avctx->skip_frame= skip_frame;
2219
    avctx->skip_idct= skip_idct;
2220
    avctx->skip_loop_filter= skip_loop_filter;
2221
    avctx->error_recognition= error_recognition;
2222
    avctx->error_concealment= error_concealment;
2223
    avctx->thread_count= thread_count;
2224

    
2225
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2226

    
2227
    if (!codec ||
2228
        avcodec_open(avctx, codec) < 0)
2229
        return -1;
2230

    
2231
    /* prepare audio output */
2232
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2233
        wanted_spec.freq = avctx->sample_rate;
2234
        wanted_spec.format = AUDIO_S16SYS;
2235
        wanted_spec.channels = avctx->channels;
2236
        wanted_spec.silence = 0;
2237
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2238
        wanted_spec.callback = sdl_audio_callback;
2239
        wanted_spec.userdata = is;
2240
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2241
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2242
            return -1;
2243
        }
2244
        is->audio_hw_buf_size = spec.size;
2245
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2246
    }
2247

    
2248
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2249
    switch(avctx->codec_type) {
2250
    case AVMEDIA_TYPE_AUDIO:
2251
        is->audio_stream = stream_index;
2252
        is->audio_st = ic->streams[stream_index];
2253
        is->audio_buf_size = 0;
2254
        is->audio_buf_index = 0;
2255

    
2256
        /* init averaging filter */
2257
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2258
        is->audio_diff_avg_count = 0;
2259
        /* since we do not have a precise anough audio fifo fullness,
2260
           we correct audio sync only if larger than this threshold */
2261
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2262

    
2263
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2264
        packet_queue_init(&is->audioq);
2265
        SDL_PauseAudio(0);
2266
        break;
2267
    case AVMEDIA_TYPE_VIDEO:
2268
        is->video_stream = stream_index;
2269
        is->video_st = ic->streams[stream_index];
2270

    
2271
//        is->video_current_pts_time = av_gettime();
2272

    
2273
        packet_queue_init(&is->videoq);
2274
        is->video_tid = SDL_CreateThread(video_thread, is);
2275
        break;
2276
    case AVMEDIA_TYPE_SUBTITLE:
2277
        is->subtitle_stream = stream_index;
2278
        is->subtitle_st = ic->streams[stream_index];
2279
        packet_queue_init(&is->subtitleq);
2280

    
2281
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2282
        break;
2283
    default:
2284
        break;
2285
    }
2286
    return 0;
2287
}
2288

    
2289
static void stream_component_close(VideoState *is, int stream_index)
2290
{
2291
    AVFormatContext *ic = is->ic;
2292
    AVCodecContext *avctx;
2293

    
2294
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2295
        return;
2296
    avctx = ic->streams[stream_index]->codec;
2297

    
2298
    switch(avctx->codec_type) {
2299
    case AVMEDIA_TYPE_AUDIO:
2300
        packet_queue_abort(&is->audioq);
2301

    
2302
        SDL_CloseAudio();
2303

    
2304
        packet_queue_end(&is->audioq);
2305
        if (is->reformat_ctx)
2306
            av_audio_convert_free(is->reformat_ctx);
2307
        is->reformat_ctx = NULL;
2308
        break;
2309
    case AVMEDIA_TYPE_VIDEO:
2310
        packet_queue_abort(&is->videoq);
2311

    
2312
        /* note: we also signal this mutex to make sure we deblock the
2313
           video thread in all cases */
2314
        SDL_LockMutex(is->pictq_mutex);
2315
        SDL_CondSignal(is->pictq_cond);
2316
        SDL_UnlockMutex(is->pictq_mutex);
2317

    
2318
        SDL_WaitThread(is->video_tid, NULL);
2319

    
2320
        packet_queue_end(&is->videoq);
2321
        break;
2322
    case AVMEDIA_TYPE_SUBTITLE:
2323
        packet_queue_abort(&is->subtitleq);
2324

    
2325
        /* note: we also signal this mutex to make sure we deblock the
2326
           video thread in all cases */
2327
        SDL_LockMutex(is->subpq_mutex);
2328
        is->subtitle_stream_changed = 1;
2329

    
2330
        SDL_CondSignal(is->subpq_cond);
2331
        SDL_UnlockMutex(is->subpq_mutex);
2332

    
2333
        SDL_WaitThread(is->subtitle_tid, NULL);
2334

    
2335
        packet_queue_end(&is->subtitleq);
2336
        break;
2337
    default:
2338
        break;
2339
    }
2340

    
2341
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2342
    avcodec_close(avctx);
2343
    switch(avctx->codec_type) {
2344
    case AVMEDIA_TYPE_AUDIO:
2345
        is->audio_st = NULL;
2346
        is->audio_stream = -1;
2347
        break;
2348
    case AVMEDIA_TYPE_VIDEO:
2349
        is->video_st = NULL;
2350
        is->video_stream = -1;
2351
        break;
2352
    case AVMEDIA_TYPE_SUBTITLE:
2353
        is->subtitle_st = NULL;
2354
        is->subtitle_stream = -1;
2355
        break;
2356
    default:
2357
        break;
2358
    }
2359
}
2360

    
2361
/* since we have only one decoding thread, we can use a global
2362
   variable instead of a thread local variable */
2363
static VideoState *global_video_state;
2364

    
2365
static int decode_interrupt_cb(void)
2366
{
2367
    return (global_video_state && global_video_state->abort_request);
2368
}
2369

    
2370
/* this thread gets the stream from the disk or the network */
2371
static int decode_thread(void *arg)
2372
{
2373
    VideoState *is = arg;
2374
    AVFormatContext *ic;
2375
    int err, i, ret;
2376
    int st_index[AVMEDIA_TYPE_NB];
2377
    AVPacket pkt1, *pkt = &pkt1;
2378
    AVFormatParameters params, *ap = &params;
2379
    int eof=0;
2380
    int pkt_in_play_range = 0;
2381

    
2382
    ic = avformat_alloc_context();
2383

    
2384
    memset(st_index, -1, sizeof(st_index));
2385
    is->video_stream = -1;
2386
    is->audio_stream = -1;
2387
    is->subtitle_stream = -1;
2388

    
2389
    global_video_state = is;
2390
    avio_set_interrupt_cb(decode_interrupt_cb);
2391

    
2392
    memset(ap, 0, sizeof(*ap));
2393

    
2394
    ap->prealloced_context = 1;
2395
    ap->width = frame_width;
2396
    ap->height= frame_height;
2397
    ap->time_base= (AVRational){1, 25};
2398
    ap->pix_fmt = frame_pix_fmt;
2399

    
2400
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2401

    
2402
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2403
    if (err < 0) {
2404
        print_error(is->filename, err);
2405
        ret = -1;
2406
        goto fail;
2407
    }
2408
    is->ic = ic;
2409

    
2410
    if(genpts)
2411
        ic->flags |= AVFMT_FLAG_GENPTS;
2412

    
2413
    err = av_find_stream_info(ic);
2414
    if (err < 0) {
2415
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2416
        ret = -1;
2417
        goto fail;
2418
    }
2419
    if(ic->pb)
2420
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2421

    
2422
    if(seek_by_bytes<0)
2423
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2424

    
2425
    /* if seeking requested, we execute it */
2426
    if (start_time != AV_NOPTS_VALUE) {
2427
        int64_t timestamp;
2428

    
2429
        timestamp = start_time;
2430
        /* add the stream start time */
2431
        if (ic->start_time != AV_NOPTS_VALUE)
2432
            timestamp += ic->start_time;
2433
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2434
        if (ret < 0) {
2435
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2436
                    is->filename, (double)timestamp / AV_TIME_BASE);
2437
        }
2438
    }
2439

    
2440
    for (i = 0; i < ic->nb_streams; i++)
2441
        ic->streams[i]->discard = AVDISCARD_ALL;
2442
    if (!video_disable)
2443
        st_index[AVMEDIA_TYPE_VIDEO] =
2444
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2445
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2446
    if (!audio_disable)
2447
        st_index[AVMEDIA_TYPE_AUDIO] =
2448
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2449
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2450
                                st_index[AVMEDIA_TYPE_VIDEO],
2451
                                NULL, 0);
2452
    if (!video_disable)
2453
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2454
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2455
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2456
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2457
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2458
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2459
                                NULL, 0);
2460
    if (show_status) {
2461
        av_dump_format(ic, 0, is->filename, 0);
2462
    }
2463

    
2464
    /* open the streams */
2465
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2466
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2467
    }
2468

    
2469
    ret=-1;
2470
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2471
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2472
    }
2473
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2474
    if(ret<0) {
2475
        if (!display_disable)
2476
            is->show_mode = SHOW_MODE_RDFT;
2477
    }
2478

    
2479
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2480
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2481
    }
2482

    
2483
    if (is->video_stream < 0 && is->audio_stream < 0) {
2484
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2485
        ret = -1;
2486
        goto fail;
2487
    }
2488

    
2489
    for(;;) {
2490
        if (is->abort_request)
2491
            break;
2492
        if (is->paused != is->last_paused) {
2493
            is->last_paused = is->paused;
2494
            if (is->paused)
2495
                is->read_pause_return= av_read_pause(ic);
2496
            else
2497
                av_read_play(ic);
2498
        }
2499
#if CONFIG_RTSP_DEMUXER
2500
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2501
            /* wait 10 ms to avoid trying to get another packet */
2502
            /* XXX: horrible */
2503
            SDL_Delay(10);
2504
            continue;
2505
        }
2506
#endif
2507
        if (is->seek_req) {
2508
            int64_t seek_target= is->seek_pos;
2509
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2510
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2511
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2512
//      of the seek_pos/seek_rel variables
2513

    
2514
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2515
            if (ret < 0) {
2516
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2517
            }else{
2518
                if (is->audio_stream >= 0) {
2519
                    packet_queue_flush(&is->audioq);
2520
                    packet_queue_put(&is->audioq, &flush_pkt);
2521
                }
2522
                if (is->subtitle_stream >= 0) {
2523
                    packet_queue_flush(&is->subtitleq);
2524
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2525
                }
2526
                if (is->video_stream >= 0) {
2527
                    packet_queue_flush(&is->videoq);
2528
                    packet_queue_put(&is->videoq, &flush_pkt);
2529
                }
2530
            }
2531
            is->seek_req = 0;
2532
            eof= 0;
2533
        }
2534

    
2535
        /* if the queue are full, no need to read more */
2536
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2537
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2538
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2539
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2540
            /* wait 10 ms */
2541
            SDL_Delay(10);
2542
            continue;
2543
        }
2544
        if(eof) {
2545
            if(is->video_stream >= 0){
2546
                av_init_packet(pkt);
2547
                pkt->data=NULL;
2548
                pkt->size=0;
2549
                pkt->stream_index= is->video_stream;
2550
                packet_queue_put(&is->videoq, pkt);
2551
            }
2552
            SDL_Delay(10);
2553
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2554
                if(loop!=1 && (!loop || --loop)){
2555
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2556
                }else if(autoexit){
2557
                    ret=AVERROR_EOF;
2558
                    goto fail;
2559
                }
2560
            }
2561
            eof=0;
2562
            continue;
2563
        }
2564
        ret = av_read_frame(ic, pkt);
2565
        if (ret < 0) {
2566
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2567
                eof=1;
2568
            if (ic->pb && ic->pb->error)
2569
                break;
2570
            SDL_Delay(100); /* wait for user event */
2571
            continue;
2572
        }
2573
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2574
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2575
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2576
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2577
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2578
                <= ((double)duration/1000000);
2579
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2580
            packet_queue_put(&is->audioq, pkt);
2581
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2582
            packet_queue_put(&is->videoq, pkt);
2583
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2584
            packet_queue_put(&is->subtitleq, pkt);
2585
        } else {
2586
            av_free_packet(pkt);
2587
        }
2588
    }
2589
    /* wait until the end */
2590
    while (!is->abort_request) {
2591
        SDL_Delay(100);
2592
    }
2593

    
2594
    ret = 0;
2595
 fail:
2596
    /* disable interrupting */
2597
    global_video_state = NULL;
2598

    
2599
    /* close each stream */
2600
    if (is->audio_stream >= 0)
2601
        stream_component_close(is, is->audio_stream);
2602
    if (is->video_stream >= 0)
2603
        stream_component_close(is, is->video_stream);
2604
    if (is->subtitle_stream >= 0)
2605
        stream_component_close(is, is->subtitle_stream);
2606
    if (is->ic) {
2607
        av_close_input_file(is->ic);
2608
        is->ic = NULL; /* safety */
2609
    }
2610
    avio_set_interrupt_cb(NULL);
2611

    
2612
    if (ret != 0) {
2613
        SDL_Event event;
2614

    
2615
        event.type = FF_QUIT_EVENT;
2616
        event.user.data1 = is;
2617
        SDL_PushEvent(&event);
2618
    }
2619
    return 0;
2620
}
2621

    
2622
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2623
{
2624
    VideoState *is;
2625

    
2626
    is = av_mallocz(sizeof(VideoState));
2627
    if (!is)
2628
        return NULL;
2629
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2630
    is->iformat = iformat;
2631
    is->ytop = 0;
2632
    is->xleft = 0;
2633

    
2634
    /* start video display */
2635
    is->pictq_mutex = SDL_CreateMutex();
2636
    is->pictq_cond = SDL_CreateCond();
2637

    
2638
    is->subpq_mutex = SDL_CreateMutex();
2639
    is->subpq_cond = SDL_CreateCond();
2640

    
2641
    is->av_sync_type = av_sync_type;
2642
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2643
    if (!is->parse_tid) {
2644
        av_free(is);
2645
        return NULL;
2646
    }
2647
    return is;
2648
}
2649

    
2650
static void stream_cycle_channel(VideoState *is, int codec_type)
2651
{
2652
    AVFormatContext *ic = is->ic;
2653
    int start_index, stream_index;
2654
    AVStream *st;
2655

    
2656
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2657
        start_index = is->video_stream;
2658
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2659
        start_index = is->audio_stream;
2660
    else
2661
        start_index = is->subtitle_stream;
2662
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2663
        return;
2664
    stream_index = start_index;
2665
    for(;;) {
2666
        if (++stream_index >= is->ic->nb_streams)
2667
        {
2668
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2669
            {
2670
                stream_index = -1;
2671
                goto the_end;
2672
            } else
2673
                stream_index = 0;
2674
        }
2675
        if (stream_index == start_index)
2676
            return;
2677
        st = ic->streams[stream_index];
2678
        if (st->codec->codec_type == codec_type) {
2679
            /* check that parameters are OK */
2680
            switch(codec_type) {
2681
            case AVMEDIA_TYPE_AUDIO:
2682
                if (st->codec->sample_rate != 0 &&
2683
                    st->codec->channels != 0)
2684
                    goto the_end;
2685
                break;
2686
            case AVMEDIA_TYPE_VIDEO:
2687
            case AVMEDIA_TYPE_SUBTITLE:
2688
                goto the_end;
2689
            default:
2690
                break;
2691
            }
2692
        }
2693
    }
2694
 the_end:
2695
    stream_component_close(is, start_index);
2696
    stream_component_open(is, stream_index);
2697
}
2698

    
2699

    
2700
static void toggle_full_screen(void)
2701
{
2702
    is_full_screen = !is_full_screen;
2703
    if (!fs_screen_width) {
2704
        /* use default SDL method */
2705
//        SDL_WM_ToggleFullScreen(screen);
2706
    }
2707
    video_open(cur_stream);
2708
}
2709

    
2710
static void toggle_pause(void)
2711
{
2712
    if (cur_stream)
2713
        stream_pause(cur_stream);
2714
    step = 0;
2715
}
2716

    
2717
static void step_to_next_frame(void)
2718
{
2719
    if (cur_stream) {
2720
        /* if the stream is paused unpause it, then step */
2721
        if (cur_stream->paused)
2722
            stream_pause(cur_stream);
2723
    }
2724
    step = 1;
2725
}
2726

    
2727
static void toggle_audio_display(void)
2728
{
2729
    if (cur_stream) {
2730
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2731
        cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2732
        fill_rectangle(screen,
2733
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2734
                    bgcolor);
2735
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2736
    }
2737
}
2738

    
2739
/* handle an event sent by the GUI */
2740
static void event_loop(void)
2741
{
2742
    SDL_Event event;
2743
    double incr, pos, frac;
2744

    
2745
    for(;;) {
2746
        double x;
2747
        SDL_WaitEvent(&event);
2748
        switch(event.type) {
2749
        case SDL_KEYDOWN:
2750
            if (exit_on_keydown) {
2751
                do_exit();
2752
                break;
2753
            }
2754
            switch(event.key.keysym.sym) {
2755
            case SDLK_ESCAPE:
2756
            case SDLK_q:
2757
                do_exit();
2758
                break;
2759
            case SDLK_f:
2760
                toggle_full_screen();
2761
                break;
2762
            case SDLK_p:
2763
            case SDLK_SPACE:
2764
                toggle_pause();
2765
                break;
2766
            case SDLK_s: //S: Step to next frame
2767
                step_to_next_frame();
2768
                break;
2769
            case SDLK_a:
2770
                if (cur_stream)
2771
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2772
                break;
2773
            case SDLK_v:
2774
                if (cur_stream)
2775
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2776
                break;
2777
            case SDLK_t:
2778
                if (cur_stream)
2779
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2780
                break;
2781
            case SDLK_w:
2782
                toggle_audio_display();
2783
                break;
2784
            case SDLK_LEFT:
2785
                incr = -10.0;
2786
                goto do_seek;
2787
            case SDLK_RIGHT:
2788
                incr = 10.0;
2789
                goto do_seek;
2790
            case SDLK_UP:
2791
                incr = 60.0;
2792
                goto do_seek;
2793
            case SDLK_DOWN:
2794
                incr = -60.0;
2795
            do_seek:
2796
                if (cur_stream) {
2797
                    if (seek_by_bytes) {
2798
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2799
                            pos= cur_stream->video_current_pos;
2800
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2801
                            pos= cur_stream->audio_pkt.pos;
2802
                        }else
2803
                            pos = avio_tell(cur_stream->ic->pb);
2804
                        if (cur_stream->ic->bit_rate)
2805
                            incr *= cur_stream->ic->bit_rate / 8.0;
2806
                        else
2807
                            incr *= 180000.0;
2808
                        pos += incr;
2809
                        stream_seek(cur_stream, pos, incr, 1);
2810
                    } else {
2811
                        pos = get_master_clock(cur_stream);
2812
                        pos += incr;
2813
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2814
                    }
2815
                }
2816
                break;
2817
            default:
2818
                break;
2819
            }
2820
            break;
2821
        case SDL_MOUSEBUTTONDOWN:
2822
            if (exit_on_mousedown) {
2823
                do_exit();
2824
                break;
2825
            }
2826
        case SDL_MOUSEMOTION:
2827
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2828
                x= event.button.x;
2829
            }else{
2830
                if(event.motion.state != SDL_PRESSED)
2831
                    break;
2832
                x= event.motion.x;
2833
            }
2834
            if (cur_stream) {
2835
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2836
                    uint64_t size=  avio_size(cur_stream->ic->pb);
2837
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2838
                }else{
2839
                    int64_t ts;
2840
                    int ns, hh, mm, ss;
2841
                    int tns, thh, tmm, tss;
2842
                    tns = cur_stream->ic->duration/1000000LL;
2843
                    thh = tns/3600;
2844
                    tmm = (tns%3600)/60;
2845
                    tss = (tns%60);
2846
                    frac = x/cur_stream->width;
2847
                    ns = frac*tns;
2848
                    hh = ns/3600;
2849
                    mm = (ns%3600)/60;
2850
                    ss = (ns%60);
2851
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2852
                            hh, mm, ss, thh, tmm, tss);
2853
                    ts = frac*cur_stream->ic->duration;
2854
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2855
                        ts += cur_stream->ic->start_time;
2856
                    stream_seek(cur_stream, ts, 0, 0);
2857
                }
2858
            }
2859
            break;
2860
        case SDL_VIDEORESIZE:
2861
            if (cur_stream) {
2862
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2863
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2864
                screen_width = cur_stream->width = event.resize.w;
2865
                screen_height= cur_stream->height= event.resize.h;
2866
            }
2867
            break;
2868
        case SDL_QUIT:
2869
        case FF_QUIT_EVENT:
2870
            do_exit();
2871
            break;
2872
        case FF_ALLOC_EVENT:
2873
            video_open(event.user.data1);
2874
            alloc_picture(event.user.data1);
2875
            break;
2876
        case FF_REFRESH_EVENT:
2877
            video_refresh_timer(event.user.data1);
2878
            cur_stream->refresh=0;
2879
            break;
2880
        default:
2881
            break;
2882
        }
2883
    }
2884
}
2885

    
2886
static void opt_frame_size(const char *arg)
2887
{
2888
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2889
        fprintf(stderr, "Incorrect frame size\n");
2890
        exit(1);
2891
    }
2892
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2893
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2894
        exit(1);
2895
    }
2896
}
2897

    
2898
static int opt_width(const char *opt, const char *arg)
2899
{
2900
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2901
    return 0;
2902
}
2903

    
2904
static int opt_height(const char *opt, const char *arg)
2905
{
2906
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2907
    return 0;
2908
}
2909

    
2910
static void opt_format(const char *arg)
2911
{
2912
    file_iformat = av_find_input_format(arg);
2913
    if (!file_iformat) {
2914
        fprintf(stderr, "Unknown input format: %s\n", arg);
2915
        exit(1);
2916
    }
2917
}
2918

    
2919
static void opt_frame_pix_fmt(const char *arg)
2920
{
2921
    frame_pix_fmt = av_get_pix_fmt(arg);
2922
}
2923

    
2924
static int opt_sync(const char *opt, const char *arg)
2925
{
2926
    if (!strcmp(arg, "audio"))
2927
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2928
    else if (!strcmp(arg, "video"))
2929
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2930
    else if (!strcmp(arg, "ext"))
2931
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2932
    else {
2933
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2934
        exit(1);
2935
    }
2936
    return 0;
2937
}
2938

    
2939
static int opt_seek(const char *opt, const char *arg)
2940
{
2941
    start_time = parse_time_or_die(opt, arg, 1);
2942
    return 0;
2943
}
2944

    
2945
static int opt_duration(const char *opt, const char *arg)
2946
{
2947
    duration = parse_time_or_die(opt, arg, 1);
2948
    return 0;
2949
}
2950

    
2951
static int opt_debug(const char *opt, const char *arg)
2952
{
2953
    av_log_set_level(99);
2954
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2955
    return 0;
2956
}
2957

    
2958
static int opt_vismv(const char *opt, const char *arg)
2959
{
2960
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2961
    return 0;
2962
}
2963

    
2964
static int opt_thread_count(const char *opt, const char *arg)
2965
{
2966
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2967
#if !HAVE_THREADS
2968
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2969
#endif
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
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3017
    { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3018
    { NULL, },
3019
};
3020

    
3021
static void show_usage(void)
3022
{
3023
    printf("Simple media player\n");
3024
    printf("usage: ffplay [options] input_file\n");
3025
    printf("\n");
3026
}
3027

    
3028
static void show_help(void)
3029
{
3030
    av_log_set_callback(log_callback_help);
3031
    show_usage();
3032
    show_help_options(options, "Main options:\n",
3033
                      OPT_EXPERT, 0);
3034
    show_help_options(options, "\nAdvanced options:\n",
3035
                      OPT_EXPERT, OPT_EXPERT);
3036
    printf("\n");
3037
    av_opt_show2(avcodec_opts[0], NULL,
3038
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3039
    printf("\n");
3040
    av_opt_show2(avformat_opts, NULL,
3041
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3042
#if !CONFIG_AVFILTER
3043
    printf("\n");
3044
    av_opt_show2(sws_opts, NULL,
3045
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3046
#endif
3047
    printf("\nWhile playing:\n"
3048
           "q, ESC              quit\n"
3049
           "f                   toggle full screen\n"
3050
           "p, SPC              pause\n"
3051
           "a                   cycle audio channel\n"
3052
           "v                   cycle video channel\n"
3053
           "t                   cycle subtitle channel\n"
3054
           "w                   show audio waves\n"
3055
           "s                   activate frame-step mode\n"
3056
           "left/right          seek backward/forward 10 seconds\n"
3057
           "down/up             seek backward/forward 1 minute\n"
3058
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3059
           );
3060
}
3061

    
3062
static void opt_input_file(const char *filename)
3063
{
3064
    if (input_filename) {
3065
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3066
                filename, input_filename);
3067
        exit(1);
3068
    }
3069
    if (!strcmp(filename, "-"))
3070
        filename = "pipe:";
3071
    input_filename = filename;
3072
}
3073

    
3074
/* Called from the main */
3075
int main(int argc, char **argv)
3076
{
3077
    int flags;
3078

    
3079
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3080

    
3081
    /* register all codecs, demux and protocols */
3082
    avcodec_register_all();
3083
#if CONFIG_AVDEVICE
3084
    avdevice_register_all();
3085
#endif
3086
#if CONFIG_AVFILTER
3087
    avfilter_register_all();
3088
#endif
3089
    av_register_all();
3090

    
3091
    init_opts();
3092

    
3093
    show_banner();
3094

    
3095
    parse_options(argc, argv, options, opt_input_file);
3096

    
3097
    if (!input_filename) {
3098
        show_usage();
3099
        fprintf(stderr, "An input file must be specified\n");
3100
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3101
        exit(1);
3102
    }
3103

    
3104
    if (display_disable) {
3105
        video_disable = 1;
3106
    }
3107
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3108
#if !defined(__MINGW32__) && !defined(__APPLE__)
3109
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3110
#endif
3111
    if (SDL_Init (flags)) {
3112
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3113
        exit(1);
3114
    }
3115

    
3116
    if (!display_disable) {
3117
#if HAVE_SDL_VIDEO_SIZE
3118
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3119
        fs_screen_width = vi->current_w;
3120
        fs_screen_height = vi->current_h;
3121
#endif
3122
    }
3123

    
3124
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3125
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3126
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3127

    
3128
    av_init_packet(&flush_pkt);
3129
    flush_pkt.data= "FLUSH";
3130

    
3131
    cur_stream = stream_open(input_filename, file_iformat);
3132

    
3133
    event_loop();
3134

    
3135
    /* never returns */
3136

    
3137
    return 0;
3138
}