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1
/*
2
 * FFplay : Simple Media Player based on the ffmpeg libraries
3
 * Copyright (c) 2003 Fabrice Bellard
4
 *
5
 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
7
 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
9
 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13
 * Lesser General Public License for more details.
14
 *
15
 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
19
#define HAVE_AV_CONFIG_H
20
#include "common.h"
21
#include "avformat.h"
22

    
23
#include "cmdutils.h"
24

    
25
#include <SDL.h>
26
#include <SDL_thread.h>
27

    
28
#ifdef CONFIG_WIN32
29
#undef main /* We don't want SDL to override our main() */
30
#endif
31

    
32
#if defined(__linux__)
33
#define HAVE_X11
34
#endif
35

    
36
#ifdef HAVE_X11
37
#include <X11/Xlib.h>
38
#endif
39

    
40
#define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
41
#define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
42

    
43
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
44
#define SAMPLE_ARRAY_SIZE (2*65536)
45

    
46
typedef struct PacketQueue {
47
    AVPacketList *first_pkt, *last_pkt;
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    int nb_packets;
49
    int size;
50
    int abort_request;
51
    SDL_mutex *mutex;
52
    SDL_cond *cond;
53
} PacketQueue;
54

    
55
#define VIDEO_PICTURE_QUEUE_SIZE 1
56

    
57
typedef struct VideoPicture {
58
    int delay; /* delay before showing the next picture */
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    SDL_Overlay *bmp;
60
    int width, height; /* source height & width */
61
    int allocated;
62
} VideoPicture;
63

    
64
enum {
65
    AV_SYNC_AUDIO_MASTER, /* default choice */
66
    AV_SYNC_VIDEO_MASTER,
67
    AV_SYNC_EXTERNAL_CLOCK, /* if external clock, then you must update external_clock yourself */
68
};
69

    
70
typedef struct VideoState {
71
    SDL_Thread *parse_tid;
72
    SDL_Thread *video_tid;
73
    int no_background;
74
    int abort_request;
75
    int paused;
76
    AVFormatContext *ic;
77
    int dtg_active_format;
78

    
79
    int audio_stream;
80
    
81
    int av_sync_type;
82
    double external_clock; /* external clock */
83

    
84
    double audio_clock;  /* current audio clock value */
85
    AVStream *audio_st;
86
    PacketQueue audioq;
87
    int audio_hw_buf_size;
88
    /* samples output by the codec. we reserve more space for avsync
89
       compensation */
90
    uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; 
91
    int audio_buf_size; /* in bytes */
92
    int audio_buf_index; /* in bytes */
93
    AVPacket audio_pkt;
94
    uint8_t *audio_pkt_data;
95
    int audio_pkt_size;
96
    int64_t audio_pkt_ipts;
97
    
98
    int show_audio; /* if true, display audio samples */
99
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
100
    int sample_array_index;
101
    int last_i_start;
102
    
103
    double video_clock; /* current video clock value */
104
    int video_stream;
105
    AVStream *video_st;
106
    PacketQueue videoq;
107

    
108
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
109
    int pictq_size, pictq_rindex, pictq_windex;
110
    SDL_mutex *pictq_mutex;
111
    SDL_cond *pictq_cond;
112
    
113
    //    QETimer *video_timer;
114
    char filename[1024];
115
    int width, height, xleft, ytop;
116
} VideoState;
117

    
118
void show_help(void);
119
int audio_write_get_buf_size(VideoState *is);
120

    
121
/* options specified by the user */
122
static AVInputFormat *file_iformat;
123
static const char *input_filename;
124
static int fs_screen_width;
125
static int fs_screen_height;
126
static int screen_width = 640;
127
static int screen_height = 480;
128
static int audio_disable;
129
static int video_disable;
130
static int display_disable;
131
static int show_status;
132

    
133
/* current context */
134
static int is_full_screen;
135
static VideoState *cur_stream;
136
static int64_t audio_callback_time;
137

    
138
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
139
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
140

    
141
SDL_Surface *screen;
142

    
143
/* packet queue handling */
144
static void packet_queue_init(PacketQueue *q)
145
{
146
    memset(q, 0, sizeof(PacketQueue));
147
    q->mutex = SDL_CreateMutex();
148
    q->cond = SDL_CreateCond();
149
}
150

    
151
static void packet_queue_end(PacketQueue *q)
152
{
153
    AVPacketList *pkt, *pkt1;
154

    
155
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
156
        pkt1 = pkt->next;
157
        av_free_packet(&pkt->pkt);
158
    }
159
    SDL_DestroyMutex(q->mutex);
160
    SDL_DestroyCond(q->cond);
161
}
162

    
163
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
164
{
165
    AVPacketList *pkt1;
166

    
167
    pkt1 = av_malloc(sizeof(AVPacketList));
168
    if (!pkt1)
169
        return -1;
170
    pkt1->pkt = *pkt;
171
    pkt1->next = NULL;
172

    
173
    SDL_LockMutex(q->mutex);
174

    
175
    if (!q->last_pkt)
176

    
177
        q->first_pkt = pkt1;
178
    else
179
        q->last_pkt->next = pkt1;
180
    q->last_pkt = pkt1;
181
    q->nb_packets++;
182
    q->size += pkt1->pkt.size;
183
    /* XXX: should duplicate packet data in DV case */
184
    SDL_CondSignal(q->cond);
185

    
186
    SDL_UnlockMutex(q->mutex);
187
    return 0;
188
}
189

    
190
static void packet_queue_abort(PacketQueue *q)
191
{
192
    SDL_LockMutex(q->mutex);
193

    
194
    q->abort_request = 1;
195
    
196
    SDL_CondSignal(q->cond);
197

    
198
    SDL_UnlockMutex(q->mutex);
199
}
200

    
201
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
202
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
203
{
204
    AVPacketList *pkt1;
205
    int ret;
206

    
207
    SDL_LockMutex(q->mutex);
208

    
209
    for(;;) {
210
        if (q->abort_request) {
211
            ret = -1;
212
            break;
213
        }
214
            
215
        pkt1 = q->first_pkt;
216
        if (pkt1) {
217
            q->first_pkt = pkt1->next;
218
            if (!q->first_pkt)
219
                q->last_pkt = NULL;
220
            q->nb_packets--;
221
            q->size -= pkt1->pkt.size;
222
            *pkt = pkt1->pkt;
223
            av_free(pkt1);
224
            ret = 1;
225
            break;
226
        } else if (!block) {
227
            ret = 0;
228
            break;
229
        } else {
230
            SDL_CondWait(q->cond, q->mutex);
231
        }
232
    }
233
    SDL_UnlockMutex(q->mutex);
234
    return ret;
235
}
236

    
237
static inline void fill_rectangle(SDL_Surface *screen, 
238
                                  int x, int y, int w, int h, int color)
239
{
240
    SDL_Rect rect;
241
    rect.x = x;
242
    rect.y = y;
243
    rect.w = w;
244
    rect.h = h;
245
    SDL_FillRect(screen, &rect, color);
246
}
247

    
248
#if 0
249
/* draw only the border of a rectangle */
250
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
251
{
252
    int w1, w2, h1, h2;
253

254
    /* fill the background */
255
    w1 = x;
256
    if (w1 < 0)
257
        w1 = 0;
258
    w2 = s->width - (x + w);
259
    if (w2 < 0)
260
        w2 = 0;
261
    h1 = y;
262
    if (h1 < 0)
263
        h1 = 0;
264
    h2 = s->height - (y + h);
265
    if (h2 < 0)
266
        h2 = 0;
267
    fill_rectangle(screen, 
268
                   s->xleft, s->ytop, 
269
                   w1, s->height, 
270
                   color);
271
    fill_rectangle(screen, 
272
                   s->xleft + s->width - w2, s->ytop, 
273
                   w2, s->height, 
274
                   color);
275
    fill_rectangle(screen, 
276
                   s->xleft + w1, s->ytop, 
277
                   s->width - w1 - w2, h1, 
278
                   color);
279
    fill_rectangle(screen, 
280
                   s->xleft + w1, s->ytop + s->height - h2,
281
                   s->width - w1 - w2, h2,
282
                   color);
283
}
284
#endif
285

    
286
static void video_image_display(VideoState *is)
287
{
288
    VideoPicture *vp;
289
    float aspect_ratio;
290
    int width, height, x, y;
291
    SDL_Rect rect;
292

    
293
    vp = &is->pictq[is->pictq_rindex];
294
    if (vp->bmp) {
295
        /* XXX: use variable in the frame */
296
        aspect_ratio = is->video_st->codec.aspect_ratio;
297
        if (aspect_ratio <= 0.0)
298
            aspect_ratio = (float)is->video_st->codec.width / 
299
                (float)is->video_st->codec.height;
300
        /* if an active format is indicated, then it overrides the
301
           mpeg format */
302
#if 0
303
        if (is->video_st->codec.dtg_active_format != is->dtg_active_format) {
304
            is->dtg_active_format = is->video_st->codec.dtg_active_format;
305
            printf("dtg_active_format=%d\n", is->dtg_active_format);
306
        }
307
#endif
308
#if 0
309
        switch(is->video_st->codec.dtg_active_format) {
310
        case FF_DTG_AFD_SAME:
311
        default:
312
            /* nothing to do */
313
            break;
314
        case FF_DTG_AFD_4_3:
315
            aspect_ratio = 4.0 / 3.0;
316
            break;
317
        case FF_DTG_AFD_16_9:
318
            aspect_ratio = 16.0 / 9.0;
319
            break;
320
        case FF_DTG_AFD_14_9:
321
            aspect_ratio = 14.0 / 9.0;
322
            break;
323
        case FF_DTG_AFD_4_3_SP_14_9:
324
            aspect_ratio = 14.0 / 9.0;
325
            break;
326
        case FF_DTG_AFD_16_9_SP_14_9:
327
            aspect_ratio = 14.0 / 9.0;
328
            break;
329
        case FF_DTG_AFD_SP_4_3:
330
            aspect_ratio = 4.0 / 3.0;
331
            break;
332
        }
333
#endif
334

    
335
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
336
        height = is->height;
337
        width = ((int)rint(height * aspect_ratio)) & -3;
338
        if (width > is->width) {
339
            width = is->width;
340
            height = ((int)rint(width / aspect_ratio)) & -3;
341
        }
342
        x = (is->width - width) / 2;
343
        y = (is->height - height) / 2;
344
        if (!is->no_background) {
345
            /* fill the background */
346
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
347
        } else {
348
            is->no_background = 0;
349
        }
350
        rect.x = is->xleft + x;
351
        rect.y = is->xleft + y;
352
        rect.w = width;
353
        rect.h = height;
354
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
355
    } else {
356
#if 0
357
        fill_rectangle(screen, 
358
                       is->xleft, is->ytop, is->width, is->height, 
359
                       QERGB(0x00, 0x00, 0x00));
360
#endif
361
    }
362
}
363

    
364
static inline int compute_mod(int a, int b)
365
{
366
    a = a % b;
367
    if (a >= 0) 
368
        return a;
369
    else
370
        return a + b;
371
}
372

    
373
static void video_audio_display(VideoState *s)
374
{
375
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
376
    int ch, channels, h, h2, bgcolor, fgcolor;
377
    int16_t time_diff;
378
    
379
    /* compute display index : center on currently output samples */
380
    channels = s->audio_st->codec.channels;
381
    nb_display_channels = channels;
382
    if (!s->paused) {
383
        n = 2 * channels;
384
        delay = audio_write_get_buf_size(s);
385
        delay /= n;
386
        
387
        /* to be more precise, we take into account the time spent since
388
           the last buffer computation */
389
        if (audio_callback_time) {
390
            time_diff = av_gettime() - audio_callback_time;
391
            delay += (time_diff * s->audio_st->codec.sample_rate) / 1000000;
392
        }
393
        
394
        delay -= s->width / 2;
395
        if (delay < s->width)
396
            delay = s->width;
397
        i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
398
        s->last_i_start = i_start;
399
    } else {
400
        i_start = s->last_i_start;
401
    }
402

    
403
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
404
    fill_rectangle(screen, 
405
                   s->xleft, s->ytop, s->width, s->height, 
406
                   bgcolor);
407

    
408
    fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
409

    
410
    /* total height for one channel */
411
    h = s->height / nb_display_channels;
412
    /* graph height / 2 */
413
    h2 = (h * 9) / 20;
414
    for(ch = 0;ch < nb_display_channels; ch++) {
415
        i = i_start + ch;
416
        y1 = s->ytop + ch * h + (h / 2); /* position of center line */
417
        for(x = 0; x < s->width; x++) {
418
            y = (s->sample_array[i] * h2) >> 15;
419
            if (y < 0) {
420
                y = -y;
421
                ys = y1 - y;
422
            } else {
423
                ys = y1;
424
            }
425
            fill_rectangle(screen, 
426
                           s->xleft + x, ys, 1, y, 
427
                           fgcolor);
428
            i += channels;
429
            if (i >= SAMPLE_ARRAY_SIZE)
430
                i -= SAMPLE_ARRAY_SIZE;
431
        }
432
    }
433

    
434
    fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
435

    
436
    for(ch = 1;ch < nb_display_channels; ch++) {
437
        y = s->ytop + ch * h;
438
        fill_rectangle(screen, 
439
                       s->xleft, y, s->width, 1, 
440
                       fgcolor);
441
    }
442
    SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
443
}
444

    
445
/* display the current picture, if any */
446
static void video_display(VideoState *is)
447
{
448
    if (is->audio_st && is->show_audio) 
449
        video_audio_display(is);
450
    else if (is->video_st)
451
        video_image_display(is);
452
}
453

    
454
static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
455
{
456
    SDL_Event event;
457
    event.type = FF_REFRESH_EVENT;
458
    event.user.data1 = opaque;
459
    SDL_PushEvent(&event);
460
    return 0; /* 0 means stop timer */
461
}
462

    
463
/* schedule a video refresh in 'delay' ms */
464
static void schedule_refresh(VideoState *is, int delay)
465
{
466
    SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
467
}
468

    
469
/* called to display each frame */
470
static void video_refresh_timer(void *opaque)
471
{
472
    VideoState *is = opaque;
473
    VideoPicture *vp;
474

    
475
    if (is->video_st) {
476
        if (is->pictq_size == 0) {
477
            /* if no picture, need to wait */
478
            schedule_refresh(is, 40);
479
        } else {
480
            vp = &is->pictq[is->pictq_rindex];
481
            
482
            /* launch timer for next picture */
483
            schedule_refresh(is, vp->delay);
484

    
485
            /* display picture */
486
            video_display(is);
487
            
488
            /* update queue size and signal for next picture */
489
            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
490
                is->pictq_rindex = 0;
491
            
492
            SDL_LockMutex(is->pictq_mutex);
493
            is->pictq_size--;
494
            SDL_CondSignal(is->pictq_cond);
495
            SDL_UnlockMutex(is->pictq_mutex);
496
        }
497
    } else if (is->audio_st) {
498
        /* draw the next audio frame */
499

    
500
        schedule_refresh(is, 40);
501

    
502
        /* if only audio stream, then display the audio bars (better
503
           than nothing, just to test the implementation */
504
        
505
        /* display picture */
506
        video_display(is);
507
    } else {
508
        schedule_refresh(is, 100);
509
    }
510
    if (show_status) {
511
        static int64_t last_time;
512
        int64_t cur_time;
513
        int aqsize, vqsize;
514
        
515
        cur_time = av_gettime();
516
        if (!last_time || (cur_time - last_time) >= 500 * 1000) {
517
            aqsize = 0;
518
            vqsize = 0;
519
            if (is->audio_st)
520
                aqsize = is->audioq.size;
521
            if (is->video_st)
522
                vqsize = is->videoq.size;
523
            printf("A:%7.2f V:%7.2f aq=%5dKB vq=%5dKB    \r", 
524
                   is->audio_clock, is->video_clock, aqsize / 1024, vqsize / 1024);
525
            fflush(stdout);
526
            last_time = cur_time;
527
        }
528
    }
529
}
530

    
531
/* allocate a picture (needs to do that in main thread to avoid
532
   potential locking problems */
533
static void alloc_picture(void *opaque)
534
{
535
    VideoState *is = opaque;
536
    VideoPicture *vp;
537
    int is_yuv;
538

    
539
    vp = &is->pictq[is->pictq_windex];
540

    
541
    if (vp->bmp)
542
        SDL_FreeYUVOverlay(vp->bmp);
543

    
544
    /* XXX: use generic function */
545
    switch(is->video_st->codec.pix_fmt) {
546
    case PIX_FMT_YUV420P:
547
    case PIX_FMT_YUV422P:
548
    case PIX_FMT_YUV444P:
549
    case PIX_FMT_YUV422:
550
    case PIX_FMT_YUV410P:
551
    case PIX_FMT_YUV411P:
552
        is_yuv = 1;
553
        break;
554
    default:
555
        is_yuv = 0;
556
        break;
557
    }
558

    
559
    if (is_yuv) {
560
        vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec.width,
561
                                       is->video_st->codec.height,
562
                                       SDL_YV12_OVERLAY, 
563
                                       screen);
564
    } else {
565
#if 0
566
        vp->bmp = bmp_alloc(screen, 
567
                            is->video_st->codec.width,
568
                            is->video_st->codec.height,
569
                            screen->bitmap_format, 
570
                            0);
571
#endif
572
        vp->bmp = NULL;
573
    }
574
    vp->width = is->video_st->codec.width;
575
    vp->height = is->video_st->codec.height;
576

    
577
    SDL_LockMutex(is->pictq_mutex);
578
    vp->allocated = 1;
579
    SDL_CondSignal(is->pictq_cond);
580
    SDL_UnlockMutex(is->pictq_mutex);
581
}
582

    
583
#define VIDEO_CORRECTION_THRESHOLD 0.2
584

    
585
static int output_picture(VideoState *is, AVPicture *src_pict, double pts)
586
{
587
    VideoPicture *vp;
588
    int dst_pix_fmt;
589
    AVPicture pict;
590
    double delay, ref_clock, diff;
591
    
592
    /* wait until we have space to put a new picture */
593
    SDL_LockMutex(is->pictq_mutex);
594
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
595
           !is->videoq.abort_request) {
596
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
597
    }
598
    SDL_UnlockMutex(is->pictq_mutex);
599
    
600
    if (is->videoq.abort_request)
601
        return -1;
602

    
603
    vp = &is->pictq[is->pictq_windex];
604

    
605
    /* alloc or resize hardware picture buffer */
606
    if (!vp->bmp || 
607
        vp->width != is->video_st->codec.width ||
608
        vp->height != is->video_st->codec.height) {
609
        SDL_Event event;
610

    
611
        vp->allocated = 0;
612

    
613
        /* the allocation must be done in the main thread to avoid
614
           locking problems */
615
        event.type = FF_ALLOC_EVENT;
616
        event.user.data1 = is;
617
        SDL_PushEvent(&event);
618
        
619
        /* wait until the picture is allocated */
620
        SDL_LockMutex(is->pictq_mutex);
621
        while (!vp->allocated && !is->videoq.abort_request) {
622
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
623
        }
624
        SDL_UnlockMutex(is->pictq_mutex);
625

    
626
        if (is->videoq.abort_request)
627
            return -1;
628
    }
629

    
630
    if (vp->bmp) {
631
        /* get a pointer on the bitmap */
632
        SDL_LockYUVOverlay (vp->bmp);
633

    
634
        dst_pix_fmt = PIX_FMT_YUV420P;
635
        pict.data[0] = vp->bmp->pixels[0];
636
        pict.data[1] = vp->bmp->pixels[2];
637
        pict.data[2] = vp->bmp->pixels[1];
638

    
639
        pict.linesize[0] = vp->bmp->pitches[0];
640
        pict.linesize[1] = vp->bmp->pitches[2];
641
        pict.linesize[2] = vp->bmp->pitches[1];
642
        
643
        img_convert(&pict, dst_pix_fmt, 
644
                    src_pict, is->video_st->codec.pix_fmt, 
645
                    is->video_st->codec.width, is->video_st->codec.height);
646
        /* update the bitmap content */
647
        SDL_UnlockYUVOverlay(vp->bmp);
648

    
649
        /* compute delay for the next frame and take into account the
650
           pts if needed to make a correction. Since we do not support
651
           correct MPEG B frame PTS, we put a high threshold */
652
        
653
        if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
654
            ref_clock = is->video_clock;
655
        } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
656
            /* cannot use audio master if no audio, so fall back to no sync */
657
            if (!is->audio_st)
658
                ref_clock = is->video_clock;
659
            else
660
                ref_clock = is->audio_clock;
661
        } else {
662
            ref_clock = is->external_clock;
663
        }
664
        diff = is->video_clock - ref_clock;
665
        delay = (double)is->video_st->codec.frame_rate_base / 
666
            (double)is->video_st->codec.frame_rate;
667
        if (fabs(diff) > VIDEO_CORRECTION_THRESHOLD) {
668
            /* if too big difference, then we adjust */
669
            delay += diff;
670
            /* compute the difference */
671
            if (delay < 0.01)
672
                delay = 0.01;
673
            else if (delay > 1.0)
674
                delay = 1.0;
675
        }
676
        vp->delay = (int)(delay * 1000 + 0.5);
677

    
678
        /* now we can update the picture count */
679
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
680
            is->pictq_windex = 0;
681
        SDL_LockMutex(is->pictq_mutex);
682
        is->pictq_size++;
683
        SDL_UnlockMutex(is->pictq_mutex);
684
    }
685

    
686
    /* update video clock */
687
    if (pts != 0) {
688
        is->video_clock = pts;
689
    } else {
690
        is->video_clock += (double)is->video_st->codec.frame_rate_base / 
691
            (double)is->video_st->codec.frame_rate;
692
    }
693
    return 0;
694
}
695

    
696
static int video_thread(void *arg)
697
{
698
    VideoState *is = arg;
699
    AVPacket pkt1, *pkt = &pkt1;
700
    unsigned char *ptr;
701
    int len, len1, got_picture, i;
702
    AVFrame frame;
703
    AVPicture pict;
704
    int64_t ipts;
705
    double pts;
706

    
707
    for(;;) {
708
        while (is->paused && !is->videoq.abort_request) {
709
            SDL_Delay(10);
710
        }
711
        if (packet_queue_get(&is->videoq, pkt, 1) < 0)
712
            break;
713
        ipts = pkt->pts;
714
        ptr = pkt->data;
715
        if (is->video_st->codec.codec_id == CODEC_ID_RAWVIDEO) {
716
            avpicture_fill(&pict, ptr, 
717
                           is->video_st->codec.pix_fmt,
718
                           is->video_st->codec.width,
719
                           is->video_st->codec.height);
720
            pts = 0;
721
            if (ipts != AV_NOPTS_VALUE)
722
                pts = (double)ipts * is->ic->pts_num / is->ic->pts_den;
723
            if (output_picture(is, &pict, pts) < 0)
724
                goto the_end;
725
        } else {
726
            len = pkt->size;
727
            while (len > 0) {
728
                len1 = avcodec_decode_video(&is->video_st->codec, 
729
                                            &frame, &got_picture, ptr, len);
730
                if (len1 < 0)
731
                    break;
732
                if (got_picture) {
733
                    for(i=0;i<4;i++) {
734
                        pict.data[i] = frame.data[i];
735
                        pict.linesize[i] = frame.linesize[i];
736
                    }
737
                    pts = 0;
738
                    if (ipts != AV_NOPTS_VALUE)
739
                        pts = (double)ipts * is->ic->pts_num / is->ic->pts_den;
740
                    ipts = AV_NOPTS_VALUE;
741
                    if (output_picture(is, &pict, pts) < 0)
742
                        goto the_end;
743
                }
744
                ptr += len1;
745
                len -= len1;
746
            }
747
        }
748
        av_free_packet(pkt);
749
    }
750
 the_end:
751
    return 0;
752
}
753

    
754
/* copy samples for viewing in editor window */
755
static void update_sample_display(VideoState *is, short *samples, int samples_size)
756
{
757
    int size, len, channels;
758

    
759
    channels = is->audio_st->codec.channels;
760

    
761
    size = samples_size / sizeof(short);
762
    while (size > 0) {
763
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
764
        if (len > size)
765
            len = size;
766
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
767
        samples += len;
768
        is->sample_array_index += len;
769
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
770
            is->sample_array_index = 0;
771
        size -= len;
772
    }
773
}
774

    
775
/* maximum audio speed change to get correct sync */
776
#define SAMPLE_CORRECTION_PERCENT_MAX 2
777

    
778
/* return the new audio buffer size (samples can be added or deleted
779
   to get better sync if video or external master clock) */
780
static int synchronize_audio(VideoState *is, short *samples, 
781
                             int samples_size, double pts)
782
{
783
    int n, delay;
784
    double ref_clock;
785
    
786
    n = 2 * is->audio_st->codec.channels;
787

    
788
    if (is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)
789
        ref_clock = is->external_clock;
790
    else if (is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st)
791
        ref_clock = is->video_clock;
792
    else
793
        ref_clock = is->audio_clock;
794
    
795
    /* if not master, then we try to remove or add samples to correct the clock */
796

    
797
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
798
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) && pts != 0) {
799
        double diff;
800
        int wanted_size, min_size, max_size, nb_samples;
801
        delay = audio_write_get_buf_size(is);
802
        diff = pts - (double)delay / (double)(n * is->audio_st->codec.sample_rate) - ref_clock;
803
        wanted_size = (int)(diff * is->audio_st->codec.sample_rate) * n;
804
        nb_samples = samples_size / n;
805

    
806
        min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
807
        max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
808
        if (wanted_size < min_size)
809
            wanted_size = min_size;
810
        else if (wanted_size > max_size)
811
            wanted_size = max_size;
812
        
813
        /* do the correct */
814
        /* XXX: do it better with sample interpolation */
815
        if (wanted_size < samples_size) {
816
            /* remove samples */
817
            samples_size = wanted_size;
818
        } else if (wanted_size > samples_size) {
819
            uint8_t *samples_end, *q;
820
            int nb;
821

    
822
            /* add samples */
823
            nb = (samples_size - wanted_size);
824
            samples_end = (uint8_t *)samples + samples_size - n;
825
            q = samples_end + n;
826
            while (nb > 0) {
827
                memcpy(q, samples_end, n);
828
                q += n;
829
                nb -= n;
830
            }
831
            samples_size = wanted_size;
832
        }
833
    }
834

    
835
    /* update audio clock */
836
    if (is->av_sync_type == AV_SYNC_AUDIO_MASTER && pts != 0) {
837
        /* a pts is given: we update the audio clock precisely */
838
        delay = audio_write_get_buf_size(is);
839
        is->audio_clock = pts - (double)delay / (double)(n * is->audio_st->codec.sample_rate);
840
    } else {
841
        is->audio_clock += (double)samples_size / (double)(n * is->audio_st->codec.sample_rate);
842
    }
843
    return samples_size;
844
}
845

    
846
/* decode one audio frame and returns its uncompressed size */
847
static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
848
{
849
    AVPacket *pkt = &is->audio_pkt;
850
    int len1, data_size;
851
    double pts;
852

    
853
    for(;;) {
854
        if (is->paused || is->audioq.abort_request) {
855
            return -1;
856
        }
857
        while (is->audio_pkt_size > 0) {
858
            len1 = avcodec_decode_audio(&is->audio_st->codec, 
859
                                        (int16_t *)audio_buf, &data_size, 
860
                                        is->audio_pkt_data, is->audio_pkt_size);
861
            if (len1 < 0)
862
                break;
863
            is->audio_pkt_data += len1;
864
            is->audio_pkt_size -= len1;
865
            if (data_size > 0) {
866
                pts = 0;
867
                if (is->audio_pkt_ipts != AV_NOPTS_VALUE)
868
                    pts = (double)is->audio_pkt_ipts * is->ic->pts_num / is->ic->pts_den;
869
                *pts_ptr = pts;
870
                is->audio_pkt_ipts = AV_NOPTS_VALUE;
871
                /* we got samples : we can exit now */
872
                return data_size;
873
            }
874
        }
875

    
876
        /* free previous packet if any */
877
        if (pkt->destruct)
878
            av_free_packet(pkt);
879

    
880
        /* read next packet */
881
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
882
            return -1;
883
        is->audio_pkt_data = pkt->data;
884
        is->audio_pkt_size = pkt->size;
885
        is->audio_pkt_ipts = pkt->pts;
886
    }
887
}
888

    
889
int audio_write_get_buf_size(VideoState *is)
890
{
891
    int delay;
892
    delay = is->audio_hw_buf_size; 
893
#if 0
894
    /* just a test to check if the estimated delay is OK */
895
    {
896
        int val;
897
        if (ioctl(sdl_audio_fd, SNDCTL_DSP_GETODELAY, &val) < 0) 
898
            perror("SNDCTL_DSP_GETODELAY");
899
        printf("real_delay=%d delay=%d\n", val, delay);
900
    }
901
#endif
902
    return delay;
903
}
904

    
905

    
906
/* prepare a new audio buffer */
907
void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
908
{
909
    VideoState *is = opaque;
910
    int audio_size, len1;
911
    double pts;
912

    
913
    audio_callback_time = av_gettime();
914
    
915
    while (len > 0) {
916
        if (is->audio_buf_index >= is->audio_buf_size) {
917
           audio_size = audio_decode_frame(is, is->audio_buf, &pts);
918
           if (audio_size < 0) {
919
                /* if error, just output silence */
920
               is->audio_buf_size = 1024;
921
               memset(is->audio_buf, 0, is->audio_buf_size);
922
           } else {
923
               if (is->show_audio)
924
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
925
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, 
926
                                              pts);
927
               is->audio_buf_size = audio_size;
928
           }
929
           is->audio_buf_index = 0;
930
        }
931
        len1 = is->audio_buf_size - is->audio_buf_index;
932
        if (len1 > len)
933
            len1 = len;
934
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
935
        len -= len1;
936
        stream += len1;
937
        is->audio_buf_index += len1;
938
    }
939
}
940

    
941

    
942
/* open a given stream. Return 0 if OK */
943
static int stream_component_open(VideoState *is, int stream_index)
944
{
945
    AVFormatContext *ic = is->ic;
946
    AVCodecContext *enc;
947
    AVCodec *codec;
948
    SDL_AudioSpec wanted_spec, spec;
949

    
950
    if (stream_index < 0 || stream_index >= ic->nb_streams)
951
        return -1;
952
    enc = &ic->streams[stream_index]->codec;
953
    
954

    
955
    /* prepare audio output */
956
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
957
        wanted_spec.freq = enc->sample_rate;
958
        wanted_spec.format = AUDIO_S16SYS;
959
        wanted_spec.channels = enc->channels;
960
        wanted_spec.silence = 0;
961
        wanted_spec.samples = 8192;
962
        wanted_spec.callback = sdl_audio_callback;
963
        wanted_spec.userdata = is;
964
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0)
965
            return -1;
966
        is->audio_hw_buf_size = spec.size;
967
    }
968

    
969
    codec = avcodec_find_decoder(enc->codec_id);
970
    if (!codec ||
971
        avcodec_open(enc, codec) < 0)
972
        return -1;
973
        switch(enc->codec_type) {
974
    case CODEC_TYPE_AUDIO:
975
        is->audio_stream = stream_index;
976
        is->audio_st = ic->streams[stream_index];
977
        is->audio_buf_size = 0;
978
        is->audio_buf_index = 0;
979
        is->audio_pkt_size = 0;
980
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
981
        packet_queue_init(&is->audioq);
982
        SDL_PauseAudio(0);
983
        break;
984
    case CODEC_TYPE_VIDEO:
985
        is->video_stream = stream_index;
986
        is->video_st = ic->streams[stream_index];
987

    
988
        packet_queue_init(&is->videoq);
989
        is->video_tid = SDL_CreateThread(video_thread, is);
990
        break;
991
    default:
992
        break;
993
    }
994
    return 0;
995
}
996

    
997
static void stream_component_close(VideoState *is, int stream_index)
998
{
999
    AVFormatContext *ic = is->ic;
1000
    AVCodecContext *enc;
1001
    
1002
    enc = &ic->streams[stream_index]->codec;
1003

    
1004
    switch(enc->codec_type) {
1005
    case CODEC_TYPE_AUDIO:
1006
        packet_queue_abort(&is->audioq);
1007

    
1008
        SDL_CloseAudio();
1009

    
1010
        packet_queue_end(&is->audioq);
1011
        break;
1012
    case CODEC_TYPE_VIDEO:
1013
        packet_queue_abort(&is->videoq);
1014

    
1015
        /* note: we also signal this mutex to make sure we deblock the
1016
           video thread in all cases */
1017
        SDL_LockMutex(is->pictq_mutex);
1018
        SDL_CondSignal(is->pictq_cond);
1019
        SDL_UnlockMutex(is->pictq_mutex);
1020

    
1021
        SDL_WaitThread(is->video_tid, NULL);
1022

    
1023
        packet_queue_end(&is->videoq);
1024
        break;
1025
    default:
1026
        break;
1027
    }
1028

    
1029
    avcodec_close(enc);
1030
    switch(enc->codec_type) {
1031
    case CODEC_TYPE_AUDIO:
1032
        is->audio_st = NULL;
1033
        is->audio_stream = -1;
1034
        break;
1035
    case CODEC_TYPE_VIDEO:
1036
        is->video_st = NULL;
1037
        is->video_stream = -1;
1038
        break;
1039
    default:
1040
        break;
1041
    }
1042
}
1043

    
1044

    
1045
/* this thread gets the stream from the disk or the network */
1046
static int decode_thread(void *arg)
1047
{
1048
    VideoState *is = arg;
1049
    AVFormatContext *ic;
1050
    int err, i, ret, video_index, audio_index;
1051
    AVPacket pkt1, *pkt = &pkt1;
1052

    
1053
    video_index = -1;
1054
    audio_index = -1;
1055
    is->video_stream = -1;
1056
    is->audio_stream = -1;
1057

    
1058
    err = av_open_input_file(&ic, is->filename, NULL, 0, NULL);
1059
    if (err < 0)
1060
        return 0;
1061
    is->ic = ic;
1062
    err = av_find_stream_info(ic);
1063
    if (err < 0)
1064
        goto fail;
1065

    
1066
    for(i = 0; i < ic->nb_streams; i++) {
1067
        AVCodecContext *enc = &ic->streams[i]->codec;
1068
        switch(enc->codec_type) {
1069
        case CODEC_TYPE_AUDIO:
1070
            if (audio_index < 0 && !audio_disable)
1071
                audio_index = i;
1072
            break;
1073
        case CODEC_TYPE_VIDEO:
1074
            if (video_index < 0 && !video_disable)
1075
                video_index = i;
1076
            break;
1077
        default:
1078
            break;
1079
        }
1080
    }
1081
    if (show_status) {
1082
        dump_format(ic, 0, is->filename, 0);
1083
    }
1084

    
1085
    /* open the streams */
1086
    if (audio_index >= 0) {
1087
        stream_component_open(is, audio_index);
1088
    }
1089

    
1090
    if (video_index >= 0) {
1091
        stream_component_open(is, video_index);
1092
    } else {
1093
        if (!display_disable)
1094
            is->show_audio = 1;
1095
    }
1096

    
1097
    if (is->video_stream < 0 && is->audio_stream < 0) {
1098
        goto fail;
1099
    }
1100

    
1101
    for(;;) {
1102
        if (is->abort_request)
1103
            break;
1104
        /* if the queue are full, no need to read more */
1105
        if (is->audioq.size > MAX_AUDIOQ_SIZE ||
1106
            is->videoq.size > MAX_VIDEOQ_SIZE) {
1107
            /* wait 10 ms */
1108
            SDL_Delay(10);
1109
            continue;
1110
        }
1111
        ret = av_read_packet(ic, pkt);
1112
        if (ret < 0) {
1113
            break;
1114
        }
1115
        if (pkt->stream_index == is->audio_stream) {
1116
            packet_queue_put(&is->audioq, pkt);
1117
        } else if (pkt->stream_index == is->video_stream) {
1118
            packet_queue_put(&is->videoq, pkt);
1119
        } else {
1120
            av_free_packet(pkt);
1121
        }
1122
    }
1123
    /* wait until the end */
1124
    while (!is->abort_request) {
1125
        SDL_Delay(100);
1126
    }
1127

    
1128
 fail:
1129
    /* close each stream */
1130
    if (is->audio_stream >= 0)
1131
        stream_component_close(is, is->audio_stream);
1132
    if (is->video_stream >= 0)
1133
        stream_component_close(is, is->video_stream);
1134

    
1135
    av_close_input_file(is->ic);
1136
    is->ic = NULL; /* safety */
1137
    return 0;
1138
}
1139

    
1140
/* pause or resume the video */
1141
static void stream_pause(VideoState *is)
1142
{
1143
    is->paused = !is->paused;
1144
}
1145

    
1146
static VideoState *stream_open(const char *filename)
1147
{
1148
    VideoState *is;
1149

    
1150
    is = av_mallocz(sizeof(VideoState));
1151
    if (!is)
1152
        return NULL;
1153
    pstrcpy(is->filename, sizeof(is->filename), filename);
1154
    if (screen) {
1155
        is->width = screen->w;
1156
        is->height = screen->h;
1157
    }
1158
    is->ytop = 0;
1159
    is->xleft = 0;
1160

    
1161
    /* start video display */
1162
    is->pictq_mutex = SDL_CreateMutex();
1163
    is->pictq_cond = SDL_CreateCond();
1164

    
1165
    /* add the refresh timer to draw the picture */
1166
    schedule_refresh(is, 40);
1167

    
1168
    is->av_sync_type = AV_SYNC_AUDIO_MASTER;
1169

    
1170
    is->parse_tid = SDL_CreateThread(decode_thread, is);
1171
    if (!is->parse_tid) {
1172
        av_free(is);
1173
        return NULL;
1174
    }
1175
    return is;
1176
}
1177

    
1178
static void stream_close(VideoState *is)
1179
{
1180
    VideoPicture *vp;
1181
    int i;
1182
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1183
    is->abort_request = 1;
1184
    SDL_WaitThread(is->parse_tid, NULL);
1185

    
1186
    /* free all pictures */
1187
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1188
        vp = &is->pictq[i];
1189
        if (vp->bmp) {
1190
            SDL_FreeYUVOverlay(vp->bmp);
1191
            vp->bmp = NULL;
1192
        }
1193
    }
1194
    SDL_DestroyMutex(is->pictq_mutex);
1195
    SDL_DestroyCond(is->pictq_cond);
1196
}
1197

    
1198
void toggle_full_screen(void)
1199
{
1200
    int w, h, flags;
1201
    is_full_screen = !is_full_screen;
1202
    if (!fs_screen_width) {
1203
        /* use default SDL method */
1204
        SDL_WM_ToggleFullScreen(screen);
1205
    } else {
1206
        /* use the recorded resolution */
1207
        flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
1208
        if (is_full_screen) {
1209
            w = fs_screen_width;
1210
            h = fs_screen_height;
1211
            flags |= SDL_FULLSCREEN;
1212
        } else {
1213
            w = screen_width;
1214
            h = screen_height;
1215
            flags |= SDL_RESIZABLE;
1216
        }
1217
        screen = SDL_SetVideoMode(w, h, 0, flags);
1218
        cur_stream->width = w;
1219
        cur_stream->height = h;
1220
    }
1221
}
1222

    
1223
void toggle_pause(void)
1224
{
1225
    if (cur_stream)
1226
        stream_pause(cur_stream);
1227
}
1228

    
1229
void do_exit(void)
1230
{
1231
    if (cur_stream) {
1232
        stream_close(cur_stream);
1233
        cur_stream = NULL;
1234
    }
1235
    if (show_status)
1236
        printf("\n");
1237
    SDL_Quit();
1238
    exit(0);
1239
}
1240

    
1241
void toggle_audio_display(void)
1242
{
1243
    if (cur_stream) {
1244
        cur_stream->show_audio = !cur_stream->show_audio;
1245
    }
1246
}
1247

    
1248
/* handle an event sent by the GUI */
1249
void event_loop(void)
1250
{
1251
    SDL_Event event;
1252

    
1253
    for(;;) {
1254
        SDL_WaitEvent(&event);
1255
        switch(event.type) {
1256
        case SDL_KEYDOWN:
1257
            switch(event.key.keysym.sym) {
1258
            case SDLK_ESCAPE:
1259
            case SDLK_q:
1260
                do_exit();
1261
                break;
1262
            case SDLK_f:
1263
                toggle_full_screen();
1264
                break;
1265
            case SDLK_p:
1266
            case SDLK_SPACE:
1267
                toggle_pause();
1268
                break;
1269
            case SDLK_a:
1270
                toggle_audio_display();
1271
                break;
1272
            default:
1273
                break;
1274
            }
1275
            break;
1276
        case SDL_VIDEORESIZE:
1277
            if (cur_stream) {
1278
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, 
1279
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
1280
                cur_stream->width = event.resize.w;
1281
                cur_stream->height = event.resize.h;
1282
            }
1283
            break;
1284
        case SDL_QUIT:
1285
            do_exit();
1286
            break;
1287
        case FF_ALLOC_EVENT:
1288
            alloc_picture(event.user.data1);
1289
            break;
1290
        case FF_REFRESH_EVENT:
1291
            video_refresh_timer(event.user.data1);
1292
            break;
1293
        default:
1294
            break;
1295
        }
1296
    }
1297
}
1298

    
1299
void opt_width(const char *arg)
1300
{
1301
    screen_width = atoi(arg);
1302
}
1303

    
1304
void opt_height(const char *arg)
1305
{
1306
    screen_height = atoi(arg);
1307
}
1308

    
1309
static void opt_format(const char *arg)
1310
{
1311
    file_iformat = av_find_input_format(arg);
1312
    if (!file_iformat) {
1313
        fprintf(stderr, "Unknown input format: %s\n", arg);
1314
        exit(1);
1315
    }
1316
}
1317

    
1318
const OptionDef options[] = {
1319
    { "h", 0, {(void*)show_help}, "show help" },
1320
    { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
1321
    { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
1322
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1323
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1324
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
1325
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1326
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
1327
    { NULL, },
1328
};
1329

    
1330
void show_help(void)
1331
{
1332
    printf("usage: ffplay [options] input_file\n"
1333
           "Simple media player\n");
1334
    printf("\n");
1335
    show_help_options(options);
1336
    printf("\nWhile playing:\n"
1337
           "q, ESC              quit\n"
1338
           "f                   toggle full screen\n"
1339
           "p, SPC              pause\n"
1340
           "a                   show audio waves\n"
1341
           );
1342
    exit(1);
1343
}
1344

    
1345
void parse_arg_file(const char *filename)
1346
{
1347
    input_filename = filename;
1348
}
1349

    
1350
/* Called from the main */
1351
int main(int argc, char **argv)
1352
{
1353
    int flags;
1354
    
1355
    /* register all codecs, demux and protocols */
1356
    av_register_all();
1357

    
1358
    parse_options(argc, argv, options);
1359

    
1360
    if (!input_filename)
1361
        show_help();
1362

    
1363
    if (display_disable) {
1364
        video_disable = 1;
1365
    }
1366
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
1367
#ifndef CONFIG_WIN32
1368
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 */
1369
#endif
1370
    if (SDL_Init (flags)) {
1371
        fprintf(stderr, "Could not initialize SDL - exiting\n");
1372
        exit(1);
1373
    }
1374

    
1375
    if (!display_disable) {
1376
        screen = SDL_SetVideoMode(screen_width, screen_height, 0, 
1377
                                  SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
1378
        if (!screen) {
1379
            fprintf(stderr, "SDL: could not set video mode - exiting\n");
1380
            exit(1);
1381
        }
1382
        SDL_WM_SetCaption("FFplay", "FFplay");
1383
#ifdef HAVE_X11
1384
        /* save the screen resolution... SDL should allow full screen
1385
           by resizing the window */
1386
        {
1387
            Display *dpy;
1388
            dpy = XOpenDisplay(NULL);
1389
            if (dpy) {
1390
                fs_screen_width = DisplayWidth(dpy, DefaultScreen(dpy));
1391
                fs_screen_height = DisplayHeight(dpy, DefaultScreen(dpy));
1392
                XCloseDisplay(dpy);
1393
            }
1394
        }
1395
#endif
1396
    }
1397

    
1398
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
1399
    SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
1400
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
1401
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
1402

    
1403
    cur_stream = stream_open(input_filename);
1404

    
1405
    event_loop();
1406

    
1407
    /* never returns */
1408

    
1409
    return 0;
1410
}