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ffmpeg / ffplay.c @ 8bce71df

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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

    
24
#include "config.h"
25
#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"
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#include "libavutil/parseutils.h"
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#include "libavutil/samplefmt.h"
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#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"
38
#include "libavcodec/opt.h"
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#include "libavcodec/avfft.h"
40

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

    
46
#include "cmdutils.h"
47

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

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

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

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

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

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

    
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/* SDL audio buffer size, in samples. Should be small to have precise
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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
71

    
72
/* 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
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77
#define FRAME_SKIP_FACTOR 0.05
78

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

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

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

    
88
static int sws_flags = SWS_BICUBIC;
89

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

    
99
#define VIDEO_PICTURE_QUEUE_SIZE 2
100
#define SUBPICTURE_QUEUE_SIZE 4
101

    
102
typedef struct VideoPicture {
103
    double pts;                                  ///<presentation time stamp for this picture
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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;
107
    int width, height; /* source height & width */
108
    int allocated;
109
    enum PixelFormat pix_fmt;
110

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

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

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

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

    
144
    int audio_stream;
145

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

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

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

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

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

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

    
211
#if CONFIG_AVFILTER
212
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
213
#endif
214

    
215
    float skip_frames;
216
    float skip_frames_index;
217
    int refresh;
218
} VideoState;
219

    
220
static void show_help(void);
221
static int audio_write_get_buf_size(VideoState *is);
222

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

    
268
static int rdftspeed=20;
269
#if CONFIG_AVFILTER
270
static char *vfilters = NULL;
271
#endif
272

    
273
/* current context */
274
static int is_full_screen;
275
static VideoState *cur_stream;
276
static int64_t audio_callback_time;
277

    
278
static AVPacket flush_pkt;
279

    
280
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
281
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
282
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
283

    
284
static SDL_Surface *screen;
285

    
286
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
287

    
288
/* packet queue handling */
289
static void packet_queue_init(PacketQueue *q)
290
{
291
    memset(q, 0, sizeof(PacketQueue));
292
    q->mutex = SDL_CreateMutex();
293
    q->cond = SDL_CreateCond();
294
    packet_queue_put(q, &flush_pkt);
295
}
296

    
297
static void packet_queue_flush(PacketQueue *q)
298
{
299
    AVPacketList *pkt, *pkt1;
300

    
301
    SDL_LockMutex(q->mutex);
302
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
303
        pkt1 = pkt->next;
304
        av_free_packet(&pkt->pkt);
305
        av_freep(&pkt);
306
    }
307
    q->last_pkt = NULL;
308
    q->first_pkt = NULL;
309
    q->nb_packets = 0;
310
    q->size = 0;
311
    SDL_UnlockMutex(q->mutex);
312
}
313

    
314
static void packet_queue_end(PacketQueue *q)
315
{
316
    packet_queue_flush(q);
317
    SDL_DestroyMutex(q->mutex);
318
    SDL_DestroyCond(q->cond);
319
}
320

    
321
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322
{
323
    AVPacketList *pkt1;
324

    
325
    /* duplicate the packet */
326
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
327
        return -1;
328

    
329
    pkt1 = av_malloc(sizeof(AVPacketList));
330
    if (!pkt1)
331
        return -1;
332
    pkt1->pkt = *pkt;
333
    pkt1->next = NULL;
334

    
335

    
336
    SDL_LockMutex(q->mutex);
337

    
338
    if (!q->last_pkt)
339

    
340
        q->first_pkt = pkt1;
341
    else
342
        q->last_pkt->next = pkt1;
343
    q->last_pkt = pkt1;
344
    q->nb_packets++;
345
    q->size += pkt1->pkt.size + sizeof(*pkt1);
346
    /* XXX: should duplicate packet data in DV case */
347
    SDL_CondSignal(q->cond);
348

    
349
    SDL_UnlockMutex(q->mutex);
350
    return 0;
351
}
352

    
353
static void packet_queue_abort(PacketQueue *q)
354
{
355
    SDL_LockMutex(q->mutex);
356

    
357
    q->abort_request = 1;
358

    
359
    SDL_CondSignal(q->cond);
360

    
361
    SDL_UnlockMutex(q->mutex);
362
}
363

    
364
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
365
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
366
{
367
    AVPacketList *pkt1;
368
    int ret;
369

    
370
    SDL_LockMutex(q->mutex);
371

    
372
    for(;;) {
373
        if (q->abort_request) {
374
            ret = -1;
375
            break;
376
        }
377

    
378
        pkt1 = q->first_pkt;
379
        if (pkt1) {
380
            q->first_pkt = pkt1->next;
381
            if (!q->first_pkt)
382
                q->last_pkt = NULL;
383
            q->nb_packets--;
384
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
385
            *pkt = pkt1->pkt;
386
            av_free(pkt1);
387
            ret = 1;
388
            break;
389
        } else if (!block) {
390
            ret = 0;
391
            break;
392
        } else {
393
            SDL_CondWait(q->cond, q->mutex);
394
        }
395
    }
396
    SDL_UnlockMutex(q->mutex);
397
    return ret;
398
}
399

    
400
static inline void fill_rectangle(SDL_Surface *screen,
401
                                  int x, int y, int w, int h, int color)
402
{
403
    SDL_Rect rect;
404
    rect.x = x;
405
    rect.y = y;
406
    rect.w = w;
407
    rect.h = h;
408
    SDL_FillRect(screen, &rect, color);
409
}
410

    
411
#if 0
412
/* draw only the border of a rectangle */
413
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
414
{
415
    int w1, w2, h1, h2;
416

417
    /* fill the background */
418
    w1 = x;
419
    if (w1 < 0)
420
        w1 = 0;
421
    w2 = s->width - (x + w);
422
    if (w2 < 0)
423
        w2 = 0;
424
    h1 = y;
425
    if (h1 < 0)
426
        h1 = 0;
427
    h2 = s->height - (y + h);
428
    if (h2 < 0)
429
        h2 = 0;
430
    fill_rectangle(screen,
431
                   s->xleft, s->ytop,
432
                   w1, s->height,
433
                   color);
434
    fill_rectangle(screen,
435
                   s->xleft + s->width - w2, s->ytop,
436
                   w2, s->height,
437
                   color);
438
    fill_rectangle(screen,
439
                   s->xleft + w1, s->ytop,
440
                   s->width - w1 - w2, h1,
441
                   color);
442
    fill_rectangle(screen,
443
                   s->xleft + w1, s->ytop + s->height - h2,
444
                   s->width - w1 - w2, h2,
445
                   color);
446
}
447
#endif
448

    
449
#define ALPHA_BLEND(a, oldp, newp, s)\
450
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
451

    
452
#define RGBA_IN(r, g, b, a, s)\
453
{\
454
    unsigned int v = ((const uint32_t *)(s))[0];\
455
    a = (v >> 24) & 0xff;\
456
    r = (v >> 16) & 0xff;\
457
    g = (v >> 8) & 0xff;\
458
    b = v & 0xff;\
459
}
460

    
461
#define YUVA_IN(y, u, v, a, s, pal)\
462
{\
463
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
464
    a = (val >> 24) & 0xff;\
465
    y = (val >> 16) & 0xff;\
466
    u = (val >> 8) & 0xff;\
467
    v = val & 0xff;\
468
}
469

    
470
#define YUVA_OUT(d, y, u, v, a)\
471
{\
472
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
473
}
474

    
475

    
476
#define BPP 1
477

    
478
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
479
{
480
    int wrap, wrap3, width2, skip2;
481
    int y, u, v, a, u1, v1, a1, w, h;
482
    uint8_t *lum, *cb, *cr;
483
    const uint8_t *p;
484
    const uint32_t *pal;
485
    int dstx, dsty, dstw, dsth;
486

    
487
    dstw = av_clip(rect->w, 0, imgw);
488
    dsth = av_clip(rect->h, 0, imgh);
489
    dstx = av_clip(rect->x, 0, imgw - dstw);
490
    dsty = av_clip(rect->y, 0, imgh - dsth);
491
    lum = dst->data[0] + dsty * dst->linesize[0];
492
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
493
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
494

    
495
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
496
    skip2 = dstx >> 1;
497
    wrap = dst->linesize[0];
498
    wrap3 = rect->pict.linesize[0];
499
    p = rect->pict.data[0];
500
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
501

    
502
    if (dsty & 1) {
503
        lum += dstx;
504
        cb += skip2;
505
        cr += skip2;
506

    
507
        if (dstx & 1) {
508
            YUVA_IN(y, u, v, a, p, pal);
509
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
510
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
511
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
512
            cb++;
513
            cr++;
514
            lum++;
515
            p += BPP;
516
        }
517
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
518
            YUVA_IN(y, u, v, a, p, pal);
519
            u1 = u;
520
            v1 = v;
521
            a1 = a;
522
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523

    
524
            YUVA_IN(y, u, v, a, p + BPP, pal);
525
            u1 += u;
526
            v1 += v;
527
            a1 += a;
528
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
529
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
531
            cb++;
532
            cr++;
533
            p += 2 * BPP;
534
            lum += 2;
535
        }
536
        if (w) {
537
            YUVA_IN(y, u, v, a, p, pal);
538
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
540
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
541
            p++;
542
            lum++;
543
        }
544
        p += wrap3 - dstw * BPP;
545
        lum += wrap - dstw - dstx;
546
        cb += dst->linesize[1] - width2 - skip2;
547
        cr += dst->linesize[2] - width2 - skip2;
548
    }
549
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
550
        lum += dstx;
551
        cb += skip2;
552
        cr += skip2;
553

    
554
        if (dstx & 1) {
555
            YUVA_IN(y, u, v, a, p, pal);
556
            u1 = u;
557
            v1 = v;
558
            a1 = a;
559
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
560
            p += wrap3;
561
            lum += wrap;
562
            YUVA_IN(y, u, v, a, p, pal);
563
            u1 += u;
564
            v1 += v;
565
            a1 += a;
566
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
568
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
569
            cb++;
570
            cr++;
571
            p += -wrap3 + BPP;
572
            lum += -wrap + 1;
573
        }
574
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
575
            YUVA_IN(y, u, v, a, p, pal);
576
            u1 = u;
577
            v1 = v;
578
            a1 = a;
579
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580

    
581
            YUVA_IN(y, u, v, a, p + BPP, pal);
582
            u1 += u;
583
            v1 += v;
584
            a1 += a;
585
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
586
            p += wrap3;
587
            lum += wrap;
588

    
589
            YUVA_IN(y, u, v, a, p, pal);
590
            u1 += u;
591
            v1 += v;
592
            a1 += a;
593
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594

    
595
            YUVA_IN(y, u, v, a, p + BPP, pal);
596
            u1 += u;
597
            v1 += v;
598
            a1 += a;
599
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
600

    
601
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
602
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
603

    
604
            cb++;
605
            cr++;
606
            p += -wrap3 + 2 * BPP;
607
            lum += -wrap + 2;
608
        }
609
        if (w) {
610
            YUVA_IN(y, u, v, a, p, pal);
611
            u1 = u;
612
            v1 = v;
613
            a1 = a;
614
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
615
            p += wrap3;
616
            lum += wrap;
617
            YUVA_IN(y, u, v, a, p, pal);
618
            u1 += u;
619
            v1 += v;
620
            a1 += a;
621
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
623
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
624
            cb++;
625
            cr++;
626
            p += -wrap3 + BPP;
627
            lum += -wrap + 1;
628
        }
629
        p += wrap3 + (wrap3 - dstw * BPP);
630
        lum += wrap + (wrap - dstw - dstx);
631
        cb += dst->linesize[1] - width2 - skip2;
632
        cr += dst->linesize[2] - width2 - skip2;
633
    }
634
    /* handle odd height */
635
    if (h) {
636
        lum += dstx;
637
        cb += skip2;
638
        cr += skip2;
639

    
640
        if (dstx & 1) {
641
            YUVA_IN(y, u, v, a, p, pal);
642
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
643
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
644
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
645
            cb++;
646
            cr++;
647
            lum++;
648
            p += BPP;
649
        }
650
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
651
            YUVA_IN(y, u, v, a, p, pal);
652
            u1 = u;
653
            v1 = v;
654
            a1 = a;
655
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
656

    
657
            YUVA_IN(y, u, v, a, p + BPP, pal);
658
            u1 += u;
659
            v1 += v;
660
            a1 += a;
661
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
662
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
663
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
664
            cb++;
665
            cr++;
666
            p += 2 * BPP;
667
            lum += 2;
668
        }
669
        if (w) {
670
            YUVA_IN(y, u, v, a, p, pal);
671
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
673
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
674
        }
675
    }
676
}
677

    
678
static void free_subpicture(SubPicture *sp)
679
{
680
    avsubtitle_free(&sp->sub);
681
}
682

    
683
static void video_image_display(VideoState *is)
684
{
685
    VideoPicture *vp;
686
    SubPicture *sp;
687
    AVPicture pict;
688
    float aspect_ratio;
689
    int width, height, x, y;
690
    SDL_Rect rect;
691
    int i;
692

    
693
    vp = &is->pictq[is->pictq_rindex];
694
    if (vp->bmp) {
695
#if CONFIG_AVFILTER
696
         if (vp->picref->video->pixel_aspect.num == 0)
697
             aspect_ratio = 0;
698
         else
699
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
700
#else
701

    
702
        /* XXX: use variable in the frame */
703
        if (is->video_st->sample_aspect_ratio.num)
704
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
705
        else if (is->video_st->codec->sample_aspect_ratio.num)
706
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
707
        else
708
            aspect_ratio = 0;
709
#endif
710
        if (aspect_ratio <= 0.0)
711
            aspect_ratio = 1.0;
712
        aspect_ratio *= (float)vp->width / (float)vp->height;
713

    
714
        if (is->subtitle_st)
715
        {
716
            if (is->subpq_size > 0)
717
            {
718
                sp = &is->subpq[is->subpq_rindex];
719

    
720
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
721
                {
722
                    SDL_LockYUVOverlay (vp->bmp);
723

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

    
728
                    pict.linesize[0] = vp->bmp->pitches[0];
729
                    pict.linesize[1] = vp->bmp->pitches[2];
730
                    pict.linesize[2] = vp->bmp->pitches[1];
731

    
732
                    for (i = 0; i < sp->sub.num_rects; i++)
733
                        blend_subrect(&pict, sp->sub.rects[i],
734
                                      vp->bmp->w, vp->bmp->h);
735

    
736
                    SDL_UnlockYUVOverlay (vp->bmp);
737
                }
738
            }
739
        }
740

    
741

    
742
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
743
        height = is->height;
744
        width = ((int)rint(height * aspect_ratio)) & ~1;
745
        if (width > is->width) {
746
            width = is->width;
747
            height = ((int)rint(width / aspect_ratio)) & ~1;
748
        }
749
        x = (is->width - width) / 2;
750
        y = (is->height - height) / 2;
751
        if (!is->no_background) {
752
            /* fill the background */
753
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
754
        } else {
755
            is->no_background = 0;
756
        }
757
        rect.x = is->xleft + x;
758
        rect.y = is->ytop  + y;
759
        rect.w = width;
760
        rect.h = height;
761
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
762
    } else {
763
#if 0
764
        fill_rectangle(screen,
765
                       is->xleft, is->ytop, is->width, is->height,
766
                       QERGB(0x00, 0x00, 0x00));
767
#endif
768
    }
769
}
770

    
771
static inline int compute_mod(int a, int b)
772
{
773
    a = a % b;
774
    if (a >= 0)
775
        return a;
776
    else
777
        return a + b;
778
}
779

    
780
static void video_audio_display(VideoState *s)
781
{
782
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
783
    int ch, channels, h, h2, bgcolor, fgcolor;
784
    int16_t time_diff;
785
    int rdft_bits, nb_freq;
786

    
787
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
788
        ;
789
    nb_freq= 1<<(rdft_bits-1);
790

    
791
    /* compute display index : center on currently output samples */
792
    channels = s->audio_st->codec->channels;
793
    nb_display_channels = channels;
794
    if (!s->paused) {
795
        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
796
        n = 2 * channels;
797
        delay = audio_write_get_buf_size(s);
798
        delay /= n;
799

    
800
        /* to be more precise, we take into account the time spent since
801
           the last buffer computation */
802
        if (audio_callback_time) {
803
            time_diff = av_gettime() - audio_callback_time;
804
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
805
        }
806

    
807
        delay += 2*data_used;
808
        if (delay < data_used)
809
            delay = data_used;
810

    
811
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
812
        if(s->show_audio==1){
813
            h= INT_MIN;
814
            for(i=0; i<1000; i+=channels){
815
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
816
                int a= s->sample_array[idx];
817
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
818
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
819
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
820
                int score= a-d;
821
                if(h<score && (b^c)<0){
822
                    h= score;
823
                    i_start= idx;
824
                }
825
            }
826
        }
827

    
828
        s->last_i_start = i_start;
829
    } else {
830
        i_start = s->last_i_start;
831
    }
832

    
833
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
834
    if(s->show_audio==1){
835
        fill_rectangle(screen,
836
                       s->xleft, s->ytop, s->width, s->height,
837
                       bgcolor);
838

    
839
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
840

    
841
        /* total height for one channel */
842
        h = s->height / nb_display_channels;
843
        /* graph height / 2 */
844
        h2 = (h * 9) / 20;
845
        for(ch = 0;ch < nb_display_channels; ch++) {
846
            i = i_start + ch;
847
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
848
            for(x = 0; x < s->width; x++) {
849
                y = (s->sample_array[i] * h2) >> 15;
850
                if (y < 0) {
851
                    y = -y;
852
                    ys = y1 - y;
853
                } else {
854
                    ys = y1;
855
                }
856
                fill_rectangle(screen,
857
                               s->xleft + x, ys, 1, y,
858
                               fgcolor);
859
                i += channels;
860
                if (i >= SAMPLE_ARRAY_SIZE)
861
                    i -= SAMPLE_ARRAY_SIZE;
862
            }
863
        }
864

    
865
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
866

    
867
        for(ch = 1;ch < nb_display_channels; ch++) {
868
            y = s->ytop + ch * h;
869
            fill_rectangle(screen,
870
                           s->xleft, y, s->width, 1,
871
                           fgcolor);
872
        }
873
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
874
    }else{
875
        nb_display_channels= FFMIN(nb_display_channels, 2);
876
        if(rdft_bits != s->rdft_bits){
877
            av_rdft_end(s->rdft);
878
            av_free(s->rdft_data);
879
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
880
            s->rdft_bits= rdft_bits;
881
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
882
        }
883
        {
884
            FFTSample *data[2];
885
            for(ch = 0;ch < nb_display_channels; ch++) {
886
                data[ch] = s->rdft_data + 2*nb_freq*ch;
887
                i = i_start + ch;
888
                for(x = 0; x < 2*nb_freq; x++) {
889
                    double w= (x-nb_freq)*(1.0/nb_freq);
890
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
891
                    i += channels;
892
                    if (i >= SAMPLE_ARRAY_SIZE)
893
                        i -= SAMPLE_ARRAY_SIZE;
894
                }
895
                av_rdft_calc(s->rdft, data[ch]);
896
            }
897
            //least efficient way to do this, we should of course directly access it but its more than fast enough
898
            for(y=0; y<s->height; y++){
899
                double w= 1/sqrt(nb_freq);
900
                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]));
901
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
902
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
903
                a= FFMIN(a,255);
904
                b= FFMIN(b,255);
905
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
906

    
907
                fill_rectangle(screen,
908
                            s->xpos, s->height-y, 1, 1,
909
                            fgcolor);
910
            }
911
        }
912
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
913
        s->xpos++;
914
        if(s->xpos >= s->width)
915
            s->xpos= s->xleft;
916
    }
917
}
918

    
919
static int video_open(VideoState *is){
920
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
921
    int w,h;
922

    
923
    if(is_full_screen) flags |= SDL_FULLSCREEN;
924
    else               flags |= SDL_RESIZABLE;
925

    
926
    if (is_full_screen && fs_screen_width) {
927
        w = fs_screen_width;
928
        h = fs_screen_height;
929
    } else if(!is_full_screen && screen_width){
930
        w = screen_width;
931
        h = screen_height;
932
#if CONFIG_AVFILTER
933
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
934
        w = is->out_video_filter->inputs[0]->w;
935
        h = is->out_video_filter->inputs[0]->h;
936
#else
937
    }else if (is->video_st && is->video_st->codec->width){
938
        w = is->video_st->codec->width;
939
        h = is->video_st->codec->height;
940
#endif
941
    } else {
942
        w = 640;
943
        h = 480;
944
    }
945
    if(screen && is->width == screen->w && screen->w == w
946
       && is->height== screen->h && screen->h == h)
947
        return 0;
948

    
949
#ifndef __APPLE__
950
    screen = SDL_SetVideoMode(w, h, 0, flags);
951
#else
952
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
953
    screen = SDL_SetVideoMode(w, h, 24, flags);
954
#endif
955
    if (!screen) {
956
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
957
        return -1;
958
    }
959
    if (!window_title)
960
        window_title = input_filename;
961
    SDL_WM_SetCaption(window_title, window_title);
962

    
963
    is->width = screen->w;
964
    is->height = screen->h;
965

    
966
    return 0;
967
}
968

    
969
/* display the current picture, if any */
970
static void video_display(VideoState *is)
971
{
972
    if(!screen)
973
        video_open(cur_stream);
974
    if (is->audio_st && is->show_audio)
975
        video_audio_display(is);
976
    else if (is->video_st)
977
        video_image_display(is);
978
}
979

    
980
static int refresh_thread(void *opaque)
981
{
982
    VideoState *is= opaque;
983
    while(!is->abort_request){
984
        SDL_Event event;
985
        event.type = FF_REFRESH_EVENT;
986
        event.user.data1 = opaque;
987
        if(!is->refresh){
988
            is->refresh=1;
989
            SDL_PushEvent(&event);
990
        }
991
        usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
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
    int dst_pix_fmt;
1370
#if CONFIG_AVFILTER
1371
    AVPicture pict_src;
1372
#endif
1373
    /* wait until we have space to put a new picture */
1374
    SDL_LockMutex(is->pictq_mutex);
1375

    
1376
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1377
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1378

    
1379
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1380
           !is->videoq.abort_request) {
1381
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1382
    }
1383
    SDL_UnlockMutex(is->pictq_mutex);
1384

    
1385
    if (is->videoq.abort_request)
1386
        return -1;
1387

    
1388
    vp = &is->pictq[is->pictq_windex];
1389

    
1390
    /* alloc or resize hardware picture buffer */
1391
    if (!vp->bmp ||
1392
#if CONFIG_AVFILTER
1393
        vp->width  != is->out_video_filter->inputs[0]->w ||
1394
        vp->height != is->out_video_filter->inputs[0]->h) {
1395
#else
1396
        vp->width != is->video_st->codec->width ||
1397
        vp->height != is->video_st->codec->height) {
1398
#endif
1399
        SDL_Event event;
1400

    
1401
        vp->allocated = 0;
1402

    
1403
        /* the allocation must be done in the main thread to avoid
1404
           locking problems */
1405
        event.type = FF_ALLOC_EVENT;
1406
        event.user.data1 = is;
1407
        SDL_PushEvent(&event);
1408

    
1409
        /* wait until the picture is allocated */
1410
        SDL_LockMutex(is->pictq_mutex);
1411
        while (!vp->allocated && !is->videoq.abort_request) {
1412
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1413
        }
1414
        SDL_UnlockMutex(is->pictq_mutex);
1415

    
1416
        if (is->videoq.abort_request)
1417
            return -1;
1418
    }
1419

    
1420
    /* if the frame is not skipped, then display it */
1421
    if (vp->bmp) {
1422
        AVPicture pict;
1423
#if CONFIG_AVFILTER
1424
        if(vp->picref)
1425
            avfilter_unref_buffer(vp->picref);
1426
        vp->picref = src_frame->opaque;
1427
#endif
1428

    
1429
        /* get a pointer on the bitmap */
1430
        SDL_LockYUVOverlay (vp->bmp);
1431

    
1432
        dst_pix_fmt = PIX_FMT_YUV420P;
1433
        memset(&pict,0,sizeof(AVPicture));
1434
        pict.data[0] = vp->bmp->pixels[0];
1435
        pict.data[1] = vp->bmp->pixels[2];
1436
        pict.data[2] = vp->bmp->pixels[1];
1437

    
1438
        pict.linesize[0] = vp->bmp->pitches[0];
1439
        pict.linesize[1] = vp->bmp->pitches[2];
1440
        pict.linesize[2] = vp->bmp->pitches[1];
1441

    
1442
#if CONFIG_AVFILTER
1443
        pict_src.data[0] = src_frame->data[0];
1444
        pict_src.data[1] = src_frame->data[1];
1445
        pict_src.data[2] = src_frame->data[2];
1446

    
1447
        pict_src.linesize[0] = src_frame->linesize[0];
1448
        pict_src.linesize[1] = src_frame->linesize[1];
1449
        pict_src.linesize[2] = src_frame->linesize[2];
1450

    
1451
        //FIXME use direct rendering
1452
        av_picture_copy(&pict, &pict_src,
1453
                        vp->pix_fmt, vp->width, vp->height);
1454
#else
1455
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1456
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1457
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1458
            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1459
        if (is->img_convert_ctx == NULL) {
1460
            fprintf(stderr, "Cannot initialize the conversion context\n");
1461
            exit(1);
1462
        }
1463
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1464
                  0, vp->height, pict.data, pict.linesize);
1465
#endif
1466
        /* update the bitmap content */
1467
        SDL_UnlockYUVOverlay(vp->bmp);
1468

    
1469
        vp->pts = pts;
1470
        vp->pos = pos;
1471

    
1472
        /* now we can update the picture count */
1473
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1474
            is->pictq_windex = 0;
1475
        SDL_LockMutex(is->pictq_mutex);
1476
        vp->target_clock= compute_target_time(vp->pts, is);
1477

    
1478
        is->pictq_size++;
1479
        SDL_UnlockMutex(is->pictq_mutex);
1480
    }
1481
    return 0;
1482
}
1483

    
1484
/**
1485
 * compute the exact PTS for the picture if it is omitted in the stream
1486
 * @param pts1 the dts of the pkt / pts of the frame
1487
 */
1488
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1489
{
1490
    double frame_delay, pts;
1491

    
1492
    pts = pts1;
1493

    
1494
    if (pts != 0) {
1495
        /* update video clock with pts, if present */
1496
        is->video_clock = pts;
1497
    } else {
1498
        pts = is->video_clock;
1499
    }
1500
    /* update video clock for next frame */
1501
    frame_delay = av_q2d(is->video_st->codec->time_base);
1502
    /* for MPEG2, the frame can be repeated, so we update the
1503
       clock accordingly */
1504
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1505
    is->video_clock += frame_delay;
1506

    
1507
#if defined(DEBUG_SYNC) && 0
1508
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1509
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1510
#endif
1511
    return queue_picture(is, src_frame, pts, pos);
1512
}
1513

    
1514
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1515
{
1516
    int len1, got_picture, i;
1517

    
1518
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1519
        return -1;
1520

    
1521
    if (pkt->data == flush_pkt.data) {
1522
        avcodec_flush_buffers(is->video_st->codec);
1523

    
1524
        SDL_LockMutex(is->pictq_mutex);
1525
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1526
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1527
            is->pictq[i].target_clock= 0;
1528
        }
1529
        while (is->pictq_size && !is->videoq.abort_request) {
1530
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1531
        }
1532
        is->video_current_pos = -1;
1533
        SDL_UnlockMutex(is->pictq_mutex);
1534

    
1535
        is->frame_last_pts = AV_NOPTS_VALUE;
1536
        is->frame_last_delay = 0;
1537
        is->frame_timer = (double)av_gettime() / 1000000.0;
1538
        is->skip_frames = 1;
1539
        is->skip_frames_index = 0;
1540
        return 0;
1541
    }
1542

    
1543
    len1 = avcodec_decode_video2(is->video_st->codec,
1544
                                 frame, &got_picture,
1545
                                 pkt);
1546

    
1547
    if (got_picture) {
1548
        if (decoder_reorder_pts == -1) {
1549
            *pts = frame->best_effort_timestamp;
1550
        } else if (decoder_reorder_pts) {
1551
            *pts = frame->pkt_pts;
1552
        } else {
1553
            *pts = frame->pkt_dts;
1554
        }
1555

    
1556
        if (*pts == AV_NOPTS_VALUE) {
1557
            *pts = 0;
1558
        }
1559

    
1560
        is->skip_frames_index += 1;
1561
        if(is->skip_frames_index >= is->skip_frames){
1562
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1563
            return 1;
1564
        }
1565

    
1566
    }
1567
    return 0;
1568
}
1569

    
1570
#if CONFIG_AVFILTER
1571
typedef struct {
1572
    VideoState *is;
1573
    AVFrame *frame;
1574
    int use_dr1;
1575
} FilterPriv;
1576

    
1577
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1578
{
1579
    AVFilterContext *ctx = codec->opaque;
1580
    AVFilterBufferRef  *ref;
1581
    int perms = AV_PERM_WRITE;
1582
    int i, w, h, stride[4];
1583
    unsigned edge;
1584

    
1585
    if(av_image_check_size(w, h, 0, codec))
1586
        return -1;
1587

    
1588
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1589
        perms |= AV_PERM_NEG_LINESIZES;
1590

    
1591
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1592
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1593
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1594
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1595
    }
1596
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1597

    
1598
    w = codec->width;
1599
    h = codec->height;
1600
    avcodec_align_dimensions2(codec, &w, &h, stride);
1601
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1602
    w += edge << 1;
1603
    h += edge << 1;
1604

    
1605
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1606
        return -1;
1607

    
1608
    ref->video->w = codec->width;
1609
    ref->video->h = codec->height;
1610
    for(i = 0; i < 4; i ++) {
1611
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1612
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1613

    
1614
        if (ref->data[i]) {
1615
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1616
        }
1617
        pic->data[i]     = ref->data[i];
1618
        pic->linesize[i] = ref->linesize[i];
1619
    }
1620
    pic->opaque = ref;
1621
    pic->age    = INT_MAX;
1622
    pic->type   = FF_BUFFER_TYPE_USER;
1623
    pic->reordered_opaque = codec->reordered_opaque;
1624
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1625
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1626
    return 0;
1627
}
1628

    
1629
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1630
{
1631
    memset(pic->data, 0, sizeof(pic->data));
1632
    avfilter_unref_buffer(pic->opaque);
1633
}
1634

    
1635
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1636
{
1637
    AVFilterBufferRef *ref = pic->opaque;
1638

    
1639
    if (pic->data[0] == NULL) {
1640
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1641
        return codec->get_buffer(codec, pic);
1642
    }
1643

    
1644
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1645
        (codec->pix_fmt != ref->format)) {
1646
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1647
        return -1;
1648
    }
1649

    
1650
    pic->reordered_opaque = codec->reordered_opaque;
1651
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1652
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1653
    return 0;
1654
}
1655

    
1656
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1657
{
1658
    FilterPriv *priv = ctx->priv;
1659
    AVCodecContext *codec;
1660
    if(!opaque) return -1;
1661

    
1662
    priv->is = opaque;
1663
    codec    = priv->is->video_st->codec;
1664
    codec->opaque = ctx;
1665
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1666
        priv->use_dr1 = 1;
1667
        codec->get_buffer     = input_get_buffer;
1668
        codec->release_buffer = input_release_buffer;
1669
        codec->reget_buffer   = input_reget_buffer;
1670
        codec->thread_safe_callbacks = 1;
1671
    }
1672

    
1673
    priv->frame = avcodec_alloc_frame();
1674

    
1675
    return 0;
1676
}
1677

    
1678
static void input_uninit(AVFilterContext *ctx)
1679
{
1680
    FilterPriv *priv = ctx->priv;
1681
    av_free(priv->frame);
1682
}
1683

    
1684
static int input_request_frame(AVFilterLink *link)
1685
{
1686
    FilterPriv *priv = link->src->priv;
1687
    AVFilterBufferRef *picref;
1688
    int64_t pts = 0;
1689
    AVPacket pkt;
1690
    int ret;
1691

    
1692
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1693
        av_free_packet(&pkt);
1694
    if (ret < 0)
1695
        return -1;
1696

    
1697
    if(priv->use_dr1) {
1698
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1699
    } else {
1700
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1701
        av_image_copy(picref->data, picref->linesize,
1702
                      priv->frame->data, priv->frame->linesize,
1703
                      picref->format, link->w, link->h);
1704
    }
1705
    av_free_packet(&pkt);
1706

    
1707
    picref->pts = pts;
1708
    picref->pos = pkt.pos;
1709
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1710
    avfilter_start_frame(link, picref);
1711
    avfilter_draw_slice(link, 0, link->h, 1);
1712
    avfilter_end_frame(link);
1713

    
1714
    return 0;
1715
}
1716

    
1717
static int input_query_formats(AVFilterContext *ctx)
1718
{
1719
    FilterPriv *priv = ctx->priv;
1720
    enum PixelFormat pix_fmts[] = {
1721
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1722
    };
1723

    
1724
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1725
    return 0;
1726
}
1727

    
1728
static int input_config_props(AVFilterLink *link)
1729
{
1730
    FilterPriv *priv  = link->src->priv;
1731
    AVCodecContext *c = priv->is->video_st->codec;
1732

    
1733
    link->w = c->width;
1734
    link->h = c->height;
1735
    link->time_base = priv->is->video_st->time_base;
1736

    
1737
    return 0;
1738
}
1739

    
1740
static AVFilter input_filter =
1741
{
1742
    .name      = "ffplay_input",
1743

    
1744
    .priv_size = sizeof(FilterPriv),
1745

    
1746
    .init      = input_init,
1747
    .uninit    = input_uninit,
1748

    
1749
    .query_formats = input_query_formats,
1750

    
1751
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1752
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1753
                                    .type = AVMEDIA_TYPE_VIDEO,
1754
                                    .request_frame = input_request_frame,
1755
                                    .config_props  = input_config_props, },
1756
                                  { .name = NULL }},
1757
};
1758

    
1759
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1760
{
1761
    char sws_flags_str[128];
1762
    int ret;
1763
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1764
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1765
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1766
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1767

    
1768
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1769
                                            NULL, is, graph)) < 0)
1770
        goto the_end;
1771
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1772
                                            NULL, &ffsink_ctx, graph)) < 0)
1773
        goto the_end;
1774

    
1775
    if(vfilters) {
1776
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1777
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1778

    
1779
        outputs->name    = av_strdup("in");
1780
        outputs->filter_ctx = filt_src;
1781
        outputs->pad_idx = 0;
1782
        outputs->next    = NULL;
1783

    
1784
        inputs->name    = av_strdup("out");
1785
        inputs->filter_ctx = filt_out;
1786
        inputs->pad_idx = 0;
1787
        inputs->next    = NULL;
1788

    
1789
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1790
            goto the_end;
1791
        av_freep(&vfilters);
1792
    } else {
1793
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1794
            goto the_end;
1795
    }
1796

    
1797
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1798
        goto the_end;
1799

    
1800
    is->out_video_filter = filt_out;
1801
the_end:
1802
    return ret;
1803
}
1804

    
1805
#endif  /* CONFIG_AVFILTER */
1806

    
1807
static int video_thread(void *arg)
1808
{
1809
    VideoState *is = arg;
1810
    AVFrame *frame= avcodec_alloc_frame();
1811
    int64_t pts_int;
1812
    double pts;
1813
    int ret;
1814

    
1815
#if CONFIG_AVFILTER
1816
    AVFilterGraph *graph = avfilter_graph_alloc();
1817
    AVFilterContext *filt_out = NULL;
1818
    int64_t pos;
1819

    
1820
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1821
        goto the_end;
1822
    filt_out = is->out_video_filter;
1823
#endif
1824

    
1825
    for(;;) {
1826
#if !CONFIG_AVFILTER
1827
        AVPacket pkt;
1828
#else
1829
        AVFilterBufferRef *picref;
1830
        AVRational tb;
1831
#endif
1832
        while (is->paused && !is->videoq.abort_request)
1833
            SDL_Delay(10);
1834
#if CONFIG_AVFILTER
1835
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1836
        if (picref) {
1837
            pts_int = picref->pts;
1838
            pos     = picref->pos;
1839
            frame->opaque = picref;
1840
        }
1841

    
1842
        if (av_cmp_q(tb, is->video_st->time_base)) {
1843
            av_unused int64_t pts1 = pts_int;
1844
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1845
            av_dlog(NULL, "video_thread(): "
1846
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1847
                    tb.num, tb.den, pts1,
1848
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1849
        }
1850
#else
1851
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1852
#endif
1853

    
1854
        if (ret < 0) goto the_end;
1855

    
1856
        if (!ret)
1857
            continue;
1858

    
1859
        pts = pts_int*av_q2d(is->video_st->time_base);
1860

    
1861
#if CONFIG_AVFILTER
1862
        ret = output_picture2(is, frame, pts, pos);
1863
#else
1864
        ret = output_picture2(is, frame, pts,  pkt.pos);
1865
        av_free_packet(&pkt);
1866
#endif
1867
        if (ret < 0)
1868
            goto the_end;
1869

    
1870
        if (step)
1871
            if (cur_stream)
1872
                stream_pause(cur_stream);
1873
    }
1874
 the_end:
1875
#if CONFIG_AVFILTER
1876
    avfilter_graph_free(&graph);
1877
#endif
1878
    av_free(frame);
1879
    return 0;
1880
}
1881

    
1882
static int subtitle_thread(void *arg)
1883
{
1884
    VideoState *is = arg;
1885
    SubPicture *sp;
1886
    AVPacket pkt1, *pkt = &pkt1;
1887
    int len1, got_subtitle;
1888
    double pts;
1889
    int i, j;
1890
    int r, g, b, y, u, v, a;
1891

    
1892
    for(;;) {
1893
        while (is->paused && !is->subtitleq.abort_request) {
1894
            SDL_Delay(10);
1895
        }
1896
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1897
            break;
1898

    
1899
        if(pkt->data == flush_pkt.data){
1900
            avcodec_flush_buffers(is->subtitle_st->codec);
1901
            continue;
1902
        }
1903
        SDL_LockMutex(is->subpq_mutex);
1904
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1905
               !is->subtitleq.abort_request) {
1906
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1907
        }
1908
        SDL_UnlockMutex(is->subpq_mutex);
1909

    
1910
        if (is->subtitleq.abort_request)
1911
            goto the_end;
1912

    
1913
        sp = &is->subpq[is->subpq_windex];
1914

    
1915
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1916
           this packet, if any */
1917
        pts = 0;
1918
        if (pkt->pts != AV_NOPTS_VALUE)
1919
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1920

    
1921
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1922
                                    &sp->sub, &got_subtitle,
1923
                                    pkt);
1924
//            if (len1 < 0)
1925
//                break;
1926
        if (got_subtitle && sp->sub.format == 0) {
1927
            sp->pts = pts;
1928

    
1929
            for (i = 0; i < sp->sub.num_rects; i++)
1930
            {
1931
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1932
                {
1933
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1934
                    y = RGB_TO_Y_CCIR(r, g, b);
1935
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1936
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1937
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1938
                }
1939
            }
1940

    
1941
            /* now we can update the picture count */
1942
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1943
                is->subpq_windex = 0;
1944
            SDL_LockMutex(is->subpq_mutex);
1945
            is->subpq_size++;
1946
            SDL_UnlockMutex(is->subpq_mutex);
1947
        }
1948
        av_free_packet(pkt);
1949
//        if (step)
1950
//            if (cur_stream)
1951
//                stream_pause(cur_stream);
1952
    }
1953
 the_end:
1954
    return 0;
1955
}
1956

    
1957
/* copy samples for viewing in editor window */
1958
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1959
{
1960
    int size, len, channels;
1961

    
1962
    channels = is->audio_st->codec->channels;
1963

    
1964
    size = samples_size / sizeof(short);
1965
    while (size > 0) {
1966
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1967
        if (len > size)
1968
            len = size;
1969
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1970
        samples += len;
1971
        is->sample_array_index += len;
1972
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1973
            is->sample_array_index = 0;
1974
        size -= len;
1975
    }
1976
}
1977

    
1978
/* return the new audio buffer size (samples can be added or deleted
1979
   to get better sync if video or external master clock) */
1980
static int synchronize_audio(VideoState *is, short *samples,
1981
                             int samples_size1, double pts)
1982
{
1983
    int n, samples_size;
1984
    double ref_clock;
1985

    
1986
    n = 2 * is->audio_st->codec->channels;
1987
    samples_size = samples_size1;
1988

    
1989
    /* if not master, then we try to remove or add samples to correct the clock */
1990
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1991
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1992
        double diff, avg_diff;
1993
        int wanted_size, min_size, max_size, nb_samples;
1994

    
1995
        ref_clock = get_master_clock(is);
1996
        diff = get_audio_clock(is) - ref_clock;
1997

    
1998
        if (diff < AV_NOSYNC_THRESHOLD) {
1999
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2000
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2001
                /* not enough measures to have a correct estimate */
2002
                is->audio_diff_avg_count++;
2003
            } else {
2004
                /* estimate the A-V difference */
2005
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2006

    
2007
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2008
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2009
                    nb_samples = samples_size / n;
2010

    
2011
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2012
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2013
                    if (wanted_size < min_size)
2014
                        wanted_size = min_size;
2015
                    else if (wanted_size > max_size)
2016
                        wanted_size = max_size;
2017

    
2018
                    /* add or remove samples to correction the synchro */
2019
                    if (wanted_size < samples_size) {
2020
                        /* remove samples */
2021
                        samples_size = wanted_size;
2022
                    } else if (wanted_size > samples_size) {
2023
                        uint8_t *samples_end, *q;
2024
                        int nb;
2025

    
2026
                        /* add samples */
2027
                        nb = (samples_size - wanted_size);
2028
                        samples_end = (uint8_t *)samples + samples_size - n;
2029
                        q = samples_end + n;
2030
                        while (nb > 0) {
2031
                            memcpy(q, samples_end, n);
2032
                            q += n;
2033
                            nb -= n;
2034
                        }
2035
                        samples_size = wanted_size;
2036
                    }
2037
                }
2038
#if 0
2039
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2040
                       diff, avg_diff, samples_size - samples_size1,
2041
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2042
#endif
2043
            }
2044
        } else {
2045
            /* too big difference : may be initial PTS errors, so
2046
               reset A-V filter */
2047
            is->audio_diff_avg_count = 0;
2048
            is->audio_diff_cum = 0;
2049
        }
2050
    }
2051

    
2052
    return samples_size;
2053
}
2054

    
2055
/* decode one audio frame and returns its uncompressed size */
2056
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2057
{
2058
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2059
    AVPacket *pkt = &is->audio_pkt;
2060
    AVCodecContext *dec= is->audio_st->codec;
2061
    int n, len1, data_size;
2062
    double pts;
2063

    
2064
    for(;;) {
2065
        /* NOTE: the audio packet can contain several frames */
2066
        while (pkt_temp->size > 0) {
2067
            data_size = sizeof(is->audio_buf1);
2068
            len1 = avcodec_decode_audio3(dec,
2069
                                        (int16_t *)is->audio_buf1, &data_size,
2070
                                        pkt_temp);
2071
            if (len1 < 0) {
2072
                /* if error, we skip the frame */
2073
                pkt_temp->size = 0;
2074
                break;
2075
            }
2076

    
2077
            pkt_temp->data += len1;
2078
            pkt_temp->size -= len1;
2079
            if (data_size <= 0)
2080
                continue;
2081

    
2082
            if (dec->sample_fmt != is->audio_src_fmt) {
2083
                if (is->reformat_ctx)
2084
                    av_audio_convert_free(is->reformat_ctx);
2085
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2086
                                                         dec->sample_fmt, 1, NULL, 0);
2087
                if (!is->reformat_ctx) {
2088
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2089
                        av_get_sample_fmt_name(dec->sample_fmt),
2090
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2091
                        break;
2092
                }
2093
                is->audio_src_fmt= dec->sample_fmt;
2094
            }
2095

    
2096
            if (is->reformat_ctx) {
2097
                const void *ibuf[6]= {is->audio_buf1};
2098
                void *obuf[6]= {is->audio_buf2};
2099
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2100
                int ostride[6]= {2};
2101
                int len= data_size/istride[0];
2102
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2103
                    printf("av_audio_convert() failed\n");
2104
                    break;
2105
                }
2106
                is->audio_buf= is->audio_buf2;
2107
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2108
                          remove this legacy cruft */
2109
                data_size= len*2;
2110
            }else{
2111
                is->audio_buf= is->audio_buf1;
2112
            }
2113

    
2114
            /* if no pts, then compute it */
2115
            pts = is->audio_clock;
2116
            *pts_ptr = pts;
2117
            n = 2 * dec->channels;
2118
            is->audio_clock += (double)data_size /
2119
                (double)(n * dec->sample_rate);
2120
#if defined(DEBUG_SYNC)
2121
            {
2122
                static double last_clock;
2123
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2124
                       is->audio_clock - last_clock,
2125
                       is->audio_clock, pts);
2126
                last_clock = is->audio_clock;
2127
            }
2128
#endif
2129
            return data_size;
2130
        }
2131

    
2132
        /* free the current packet */
2133
        if (pkt->data)
2134
            av_free_packet(pkt);
2135

    
2136
        if (is->paused || is->audioq.abort_request) {
2137
            return -1;
2138
        }
2139

    
2140
        /* read next packet */
2141
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2142
            return -1;
2143
        if(pkt->data == flush_pkt.data){
2144
            avcodec_flush_buffers(dec);
2145
            continue;
2146
        }
2147

    
2148
        pkt_temp->data = pkt->data;
2149
        pkt_temp->size = pkt->size;
2150

    
2151
        /* if update the audio clock with the pts */
2152
        if (pkt->pts != AV_NOPTS_VALUE) {
2153
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2154
        }
2155
    }
2156
}
2157

    
2158
/* get the current audio output buffer size, in samples. With SDL, we
2159
   cannot have a precise information */
2160
static int audio_write_get_buf_size(VideoState *is)
2161
{
2162
    return is->audio_buf_size - is->audio_buf_index;
2163
}
2164

    
2165

    
2166
/* prepare a new audio buffer */
2167
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2168
{
2169
    VideoState *is = opaque;
2170
    int audio_size, len1;
2171
    double pts;
2172

    
2173
    audio_callback_time = av_gettime();
2174

    
2175
    while (len > 0) {
2176
        if (is->audio_buf_index >= is->audio_buf_size) {
2177
           audio_size = audio_decode_frame(is, &pts);
2178
           if (audio_size < 0) {
2179
                /* if error, just output silence */
2180
               is->audio_buf = is->audio_buf1;
2181
               is->audio_buf_size = 1024;
2182
               memset(is->audio_buf, 0, is->audio_buf_size);
2183
           } else {
2184
               if (is->show_audio)
2185
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2186
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2187
                                              pts);
2188
               is->audio_buf_size = audio_size;
2189
           }
2190
           is->audio_buf_index = 0;
2191
        }
2192
        len1 = is->audio_buf_size - is->audio_buf_index;
2193
        if (len1 > len)
2194
            len1 = len;
2195
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2196
        len -= len1;
2197
        stream += len1;
2198
        is->audio_buf_index += len1;
2199
    }
2200
}
2201

    
2202
/* open a given stream. Return 0 if OK */
2203
static int stream_component_open(VideoState *is, int stream_index)
2204
{
2205
    AVFormatContext *ic = is->ic;
2206
    AVCodecContext *avctx;
2207
    AVCodec *codec;
2208
    SDL_AudioSpec wanted_spec, spec;
2209

    
2210
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2211
        return -1;
2212
    avctx = ic->streams[stream_index]->codec;
2213

    
2214
    /* prepare audio output */
2215
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2216
        if (avctx->channels > 0) {
2217
            avctx->request_channels = FFMIN(2, avctx->channels);
2218
        } else {
2219
            avctx->request_channels = 2;
2220
        }
2221
    }
2222

    
2223
    codec = avcodec_find_decoder(avctx->codec_id);
2224
    avctx->debug_mv = debug_mv;
2225
    avctx->debug = debug;
2226
    avctx->workaround_bugs = workaround_bugs;
2227
    avctx->lowres = lowres;
2228
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2229
    avctx->idct_algo= idct;
2230
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2231
    avctx->skip_frame= skip_frame;
2232
    avctx->skip_idct= skip_idct;
2233
    avctx->skip_loop_filter= skip_loop_filter;
2234
    avctx->error_recognition= error_recognition;
2235
    avctx->error_concealment= error_concealment;
2236
    avctx->thread_count= thread_count;
2237

    
2238
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2239

    
2240
    if (!codec ||
2241
        avcodec_open(avctx, codec) < 0)
2242
        return -1;
2243

    
2244
    /* prepare audio output */
2245
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2246
        wanted_spec.freq = avctx->sample_rate;
2247
        wanted_spec.format = AUDIO_S16SYS;
2248
        wanted_spec.channels = avctx->channels;
2249
        wanted_spec.silence = 0;
2250
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2251
        wanted_spec.callback = sdl_audio_callback;
2252
        wanted_spec.userdata = is;
2253
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2254
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2255
            return -1;
2256
        }
2257
        is->audio_hw_buf_size = spec.size;
2258
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2259
    }
2260

    
2261
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2262
    switch(avctx->codec_type) {
2263
    case AVMEDIA_TYPE_AUDIO:
2264
        is->audio_stream = stream_index;
2265
        is->audio_st = ic->streams[stream_index];
2266
        is->audio_buf_size = 0;
2267
        is->audio_buf_index = 0;
2268

    
2269
        /* init averaging filter */
2270
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2271
        is->audio_diff_avg_count = 0;
2272
        /* since we do not have a precise anough audio fifo fullness,
2273
           we correct audio sync only if larger than this threshold */
2274
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2275

    
2276
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2277
        packet_queue_init(&is->audioq);
2278
        SDL_PauseAudio(0);
2279
        break;
2280
    case AVMEDIA_TYPE_VIDEO:
2281
        is->video_stream = stream_index;
2282
        is->video_st = ic->streams[stream_index];
2283

    
2284
//        is->video_current_pts_time = av_gettime();
2285

    
2286
        packet_queue_init(&is->videoq);
2287
        is->video_tid = SDL_CreateThread(video_thread, is);
2288
        break;
2289
    case AVMEDIA_TYPE_SUBTITLE:
2290
        is->subtitle_stream = stream_index;
2291
        is->subtitle_st = ic->streams[stream_index];
2292
        packet_queue_init(&is->subtitleq);
2293

    
2294
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2295
        break;
2296
    default:
2297
        break;
2298
    }
2299
    return 0;
2300
}
2301

    
2302
static void stream_component_close(VideoState *is, int stream_index)
2303
{
2304
    AVFormatContext *ic = is->ic;
2305
    AVCodecContext *avctx;
2306

    
2307
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2308
        return;
2309
    avctx = ic->streams[stream_index]->codec;
2310

    
2311
    switch(avctx->codec_type) {
2312
    case AVMEDIA_TYPE_AUDIO:
2313
        packet_queue_abort(&is->audioq);
2314

    
2315
        SDL_CloseAudio();
2316

    
2317
        packet_queue_end(&is->audioq);
2318
        if (is->reformat_ctx)
2319
            av_audio_convert_free(is->reformat_ctx);
2320
        is->reformat_ctx = NULL;
2321
        break;
2322
    case AVMEDIA_TYPE_VIDEO:
2323
        packet_queue_abort(&is->videoq);
2324

    
2325
        /* note: we also signal this mutex to make sure we deblock the
2326
           video thread in all cases */
2327
        SDL_LockMutex(is->pictq_mutex);
2328
        SDL_CondSignal(is->pictq_cond);
2329
        SDL_UnlockMutex(is->pictq_mutex);
2330

    
2331
        SDL_WaitThread(is->video_tid, NULL);
2332

    
2333
        packet_queue_end(&is->videoq);
2334
        break;
2335
    case AVMEDIA_TYPE_SUBTITLE:
2336
        packet_queue_abort(&is->subtitleq);
2337

    
2338
        /* note: we also signal this mutex to make sure we deblock the
2339
           video thread in all cases */
2340
        SDL_LockMutex(is->subpq_mutex);
2341
        is->subtitle_stream_changed = 1;
2342

    
2343
        SDL_CondSignal(is->subpq_cond);
2344
        SDL_UnlockMutex(is->subpq_mutex);
2345

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

    
2348
        packet_queue_end(&is->subtitleq);
2349
        break;
2350
    default:
2351
        break;
2352
    }
2353

    
2354
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2355
    avcodec_close(avctx);
2356
    switch(avctx->codec_type) {
2357
    case AVMEDIA_TYPE_AUDIO:
2358
        is->audio_st = NULL;
2359
        is->audio_stream = -1;
2360
        break;
2361
    case AVMEDIA_TYPE_VIDEO:
2362
        is->video_st = NULL;
2363
        is->video_stream = -1;
2364
        break;
2365
    case AVMEDIA_TYPE_SUBTITLE:
2366
        is->subtitle_st = NULL;
2367
        is->subtitle_stream = -1;
2368
        break;
2369
    default:
2370
        break;
2371
    }
2372
}
2373

    
2374
/* since we have only one decoding thread, we can use a global
2375
   variable instead of a thread local variable */
2376
static VideoState *global_video_state;
2377

    
2378
static int decode_interrupt_cb(void)
2379
{
2380
    return (global_video_state && global_video_state->abort_request);
2381
}
2382

    
2383
/* this thread gets the stream from the disk or the network */
2384
static int decode_thread(void *arg)
2385
{
2386
    VideoState *is = arg;
2387
    AVFormatContext *ic;
2388
    int err, i, ret;
2389
    int st_index[AVMEDIA_TYPE_NB];
2390
    AVPacket pkt1, *pkt = &pkt1;
2391
    AVFormatParameters params, *ap = &params;
2392
    int eof=0;
2393
    int pkt_in_play_range = 0;
2394

    
2395
    ic = avformat_alloc_context();
2396

    
2397
    memset(st_index, -1, sizeof(st_index));
2398
    is->video_stream = -1;
2399
    is->audio_stream = -1;
2400
    is->subtitle_stream = -1;
2401

    
2402
    global_video_state = is;
2403
    url_set_interrupt_cb(decode_interrupt_cb);
2404

    
2405
    memset(ap, 0, sizeof(*ap));
2406

    
2407
    ap->prealloced_context = 1;
2408
    ap->width = frame_width;
2409
    ap->height= frame_height;
2410
    ap->time_base= (AVRational){1, 25};
2411
    ap->pix_fmt = frame_pix_fmt;
2412

    
2413
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2414

    
2415
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2416
    if (err < 0) {
2417
        print_error(is->filename, err);
2418
        ret = -1;
2419
        goto fail;
2420
    }
2421
    is->ic = ic;
2422

    
2423
    if(genpts)
2424
        ic->flags |= AVFMT_FLAG_GENPTS;
2425

    
2426
    err = av_find_stream_info(ic);
2427
    if (err < 0) {
2428
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2429
        ret = -1;
2430
        goto fail;
2431
    }
2432
    if(ic->pb)
2433
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2434

    
2435
    if(seek_by_bytes<0)
2436
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2437

    
2438
    /* if seeking requested, we execute it */
2439
    if (start_time != AV_NOPTS_VALUE) {
2440
        int64_t timestamp;
2441

    
2442
        timestamp = start_time;
2443
        /* add the stream start time */
2444
        if (ic->start_time != AV_NOPTS_VALUE)
2445
            timestamp += ic->start_time;
2446
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2447
        if (ret < 0) {
2448
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2449
                    is->filename, (double)timestamp / AV_TIME_BASE);
2450
        }
2451
    }
2452

    
2453
    for (i = 0; i < ic->nb_streams; i++)
2454
        ic->streams[i]->discard = AVDISCARD_ALL;
2455
    if (!video_disable)
2456
        st_index[AVMEDIA_TYPE_VIDEO] =
2457
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2458
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2459
    if (!audio_disable)
2460
        st_index[AVMEDIA_TYPE_AUDIO] =
2461
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2462
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2463
                                st_index[AVMEDIA_TYPE_VIDEO],
2464
                                NULL, 0);
2465
    if (!video_disable)
2466
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2467
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2468
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2469
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2470
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2471
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2472
                                NULL, 0);
2473
    if (show_status) {
2474
        av_dump_format(ic, 0, is->filename, 0);
2475
    }
2476

    
2477
    /* open the streams */
2478
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2479
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2480
    }
2481

    
2482
    ret=-1;
2483
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2484
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2485
    }
2486
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2487
    if(ret<0) {
2488
        if (!display_disable)
2489
            is->show_audio = 2;
2490
    }
2491

    
2492
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2493
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2494
    }
2495

    
2496
    if (is->video_stream < 0 && is->audio_stream < 0) {
2497
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2498
        ret = -1;
2499
        goto fail;
2500
    }
2501

    
2502
    for(;;) {
2503
        if (is->abort_request)
2504
            break;
2505
        if (is->paused != is->last_paused) {
2506
            is->last_paused = is->paused;
2507
            if (is->paused)
2508
                is->read_pause_return= av_read_pause(ic);
2509
            else
2510
                av_read_play(ic);
2511
        }
2512
#if CONFIG_RTSP_DEMUXER
2513
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2514
            /* wait 10 ms to avoid trying to get another packet */
2515
            /* XXX: horrible */
2516
            SDL_Delay(10);
2517
            continue;
2518
        }
2519
#endif
2520
        if (is->seek_req) {
2521
            int64_t seek_target= is->seek_pos;
2522
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2523
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2524
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2525
//      of the seek_pos/seek_rel variables
2526

    
2527
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2528
            if (ret < 0) {
2529
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2530
            }else{
2531
                if (is->audio_stream >= 0) {
2532
                    packet_queue_flush(&is->audioq);
2533
                    packet_queue_put(&is->audioq, &flush_pkt);
2534
                }
2535
                if (is->subtitle_stream >= 0) {
2536
                    packet_queue_flush(&is->subtitleq);
2537
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2538
                }
2539
                if (is->video_stream >= 0) {
2540
                    packet_queue_flush(&is->videoq);
2541
                    packet_queue_put(&is->videoq, &flush_pkt);
2542
                }
2543
            }
2544
            is->seek_req = 0;
2545
            eof= 0;
2546
        }
2547

    
2548
        /* if the queue are full, no need to read more */
2549
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2550
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2551
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2552
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2553
            /* wait 10 ms */
2554
            SDL_Delay(10);
2555
            continue;
2556
        }
2557
        if(eof) {
2558
            if(is->video_stream >= 0){
2559
                av_init_packet(pkt);
2560
                pkt->data=NULL;
2561
                pkt->size=0;
2562
                pkt->stream_index= is->video_stream;
2563
                packet_queue_put(&is->videoq, pkt);
2564
            }
2565
            SDL_Delay(10);
2566
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2567
                if(loop!=1 && (!loop || --loop)){
2568
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2569
                }else if(autoexit){
2570
                    ret=AVERROR_EOF;
2571
                    goto fail;
2572
                }
2573
            }
2574
            eof=0;
2575
            continue;
2576
        }
2577
        ret = av_read_frame(ic, pkt);
2578
        if (ret < 0) {
2579
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2580
                eof=1;
2581
            if (ic->pb && ic->pb->error)
2582
                break;
2583
            SDL_Delay(100); /* wait for user event */
2584
            continue;
2585
        }
2586
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2587
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2588
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2589
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2590
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2591
                <= ((double)duration/1000000);
2592
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2593
            packet_queue_put(&is->audioq, pkt);
2594
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2595
            packet_queue_put(&is->videoq, pkt);
2596
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2597
            packet_queue_put(&is->subtitleq, pkt);
2598
        } else {
2599
            av_free_packet(pkt);
2600
        }
2601
    }
2602
    /* wait until the end */
2603
    while (!is->abort_request) {
2604
        SDL_Delay(100);
2605
    }
2606

    
2607
    ret = 0;
2608
 fail:
2609
    /* disable interrupting */
2610
    global_video_state = NULL;
2611

    
2612
    /* close each stream */
2613
    if (is->audio_stream >= 0)
2614
        stream_component_close(is, is->audio_stream);
2615
    if (is->video_stream >= 0)
2616
        stream_component_close(is, is->video_stream);
2617
    if (is->subtitle_stream >= 0)
2618
        stream_component_close(is, is->subtitle_stream);
2619
    if (is->ic) {
2620
        av_close_input_file(is->ic);
2621
        is->ic = NULL; /* safety */
2622
    }
2623
    url_set_interrupt_cb(NULL);
2624

    
2625
    if (ret != 0) {
2626
        SDL_Event event;
2627

    
2628
        event.type = FF_QUIT_EVENT;
2629
        event.user.data1 = is;
2630
        SDL_PushEvent(&event);
2631
    }
2632
    return 0;
2633
}
2634

    
2635
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2636
{
2637
    VideoState *is;
2638

    
2639
    is = av_mallocz(sizeof(VideoState));
2640
    if (!is)
2641
        return NULL;
2642
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2643
    is->iformat = iformat;
2644
    is->ytop = 0;
2645
    is->xleft = 0;
2646

    
2647
    /* start video display */
2648
    is->pictq_mutex = SDL_CreateMutex();
2649
    is->pictq_cond = SDL_CreateCond();
2650

    
2651
    is->subpq_mutex = SDL_CreateMutex();
2652
    is->subpq_cond = SDL_CreateCond();
2653

    
2654
    is->av_sync_type = av_sync_type;
2655
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2656
    if (!is->parse_tid) {
2657
        av_free(is);
2658
        return NULL;
2659
    }
2660
    return is;
2661
}
2662

    
2663
static void stream_cycle_channel(VideoState *is, int codec_type)
2664
{
2665
    AVFormatContext *ic = is->ic;
2666
    int start_index, stream_index;
2667
    AVStream *st;
2668

    
2669
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2670
        start_index = is->video_stream;
2671
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2672
        start_index = is->audio_stream;
2673
    else
2674
        start_index = is->subtitle_stream;
2675
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2676
        return;
2677
    stream_index = start_index;
2678
    for(;;) {
2679
        if (++stream_index >= is->ic->nb_streams)
2680
        {
2681
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2682
            {
2683
                stream_index = -1;
2684
                goto the_end;
2685
            } else
2686
                stream_index = 0;
2687
        }
2688
        if (stream_index == start_index)
2689
            return;
2690
        st = ic->streams[stream_index];
2691
        if (st->codec->codec_type == codec_type) {
2692
            /* check that parameters are OK */
2693
            switch(codec_type) {
2694
            case AVMEDIA_TYPE_AUDIO:
2695
                if (st->codec->sample_rate != 0 &&
2696
                    st->codec->channels != 0)
2697
                    goto the_end;
2698
                break;
2699
            case AVMEDIA_TYPE_VIDEO:
2700
            case AVMEDIA_TYPE_SUBTITLE:
2701
                goto the_end;
2702
            default:
2703
                break;
2704
            }
2705
        }
2706
    }
2707
 the_end:
2708
    stream_component_close(is, start_index);
2709
    stream_component_open(is, stream_index);
2710
}
2711

    
2712

    
2713
static void toggle_full_screen(void)
2714
{
2715
    is_full_screen = !is_full_screen;
2716
    if (!fs_screen_width) {
2717
        /* use default SDL method */
2718
//        SDL_WM_ToggleFullScreen(screen);
2719
    }
2720
    video_open(cur_stream);
2721
}
2722

    
2723
static void toggle_pause(void)
2724
{
2725
    if (cur_stream)
2726
        stream_pause(cur_stream);
2727
    step = 0;
2728
}
2729

    
2730
static void step_to_next_frame(void)
2731
{
2732
    if (cur_stream) {
2733
        /* if the stream is paused unpause it, then step */
2734
        if (cur_stream->paused)
2735
            stream_pause(cur_stream);
2736
    }
2737
    step = 1;
2738
}
2739

    
2740
static void toggle_audio_display(void)
2741
{
2742
    if (cur_stream) {
2743
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2744
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2745
        fill_rectangle(screen,
2746
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2747
                    bgcolor);
2748
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2749
    }
2750
}
2751

    
2752
/* handle an event sent by the GUI */
2753
static void event_loop(void)
2754
{
2755
    SDL_Event event;
2756
    double incr, pos, frac;
2757

    
2758
    for(;;) {
2759
        double x;
2760
        SDL_WaitEvent(&event);
2761
        switch(event.type) {
2762
        case SDL_KEYDOWN:
2763
            if (exit_on_keydown) {
2764
                do_exit();
2765
                break;
2766
            }
2767
            switch(event.key.keysym.sym) {
2768
            case SDLK_ESCAPE:
2769
            case SDLK_q:
2770
                do_exit();
2771
                break;
2772
            case SDLK_f:
2773
                toggle_full_screen();
2774
                break;
2775
            case SDLK_p:
2776
            case SDLK_SPACE:
2777
                toggle_pause();
2778
                break;
2779
            case SDLK_s: //S: Step to next frame
2780
                step_to_next_frame();
2781
                break;
2782
            case SDLK_a:
2783
                if (cur_stream)
2784
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2785
                break;
2786
            case SDLK_v:
2787
                if (cur_stream)
2788
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2789
                break;
2790
            case SDLK_t:
2791
                if (cur_stream)
2792
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2793
                break;
2794
            case SDLK_w:
2795
                toggle_audio_display();
2796
                break;
2797
            case SDLK_LEFT:
2798
                incr = -10.0;
2799
                goto do_seek;
2800
            case SDLK_RIGHT:
2801
                incr = 10.0;
2802
                goto do_seek;
2803
            case SDLK_UP:
2804
                incr = 60.0;
2805
                goto do_seek;
2806
            case SDLK_DOWN:
2807
                incr = -60.0;
2808
            do_seek:
2809
                if (cur_stream) {
2810
                    if (seek_by_bytes) {
2811
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2812
                            pos= cur_stream->video_current_pos;
2813
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2814
                            pos= cur_stream->audio_pkt.pos;
2815
                        }else
2816
                            pos = avio_tell(cur_stream->ic->pb);
2817
                        if (cur_stream->ic->bit_rate)
2818
                            incr *= cur_stream->ic->bit_rate / 8.0;
2819
                        else
2820
                            incr *= 180000.0;
2821
                        pos += incr;
2822
                        stream_seek(cur_stream, pos, incr, 1);
2823
                    } else {
2824
                        pos = get_master_clock(cur_stream);
2825
                        pos += incr;
2826
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2827
                    }
2828
                }
2829
                break;
2830
            default:
2831
                break;
2832
            }
2833
            break;
2834
        case SDL_MOUSEBUTTONDOWN:
2835
            if (exit_on_mousedown) {
2836
                do_exit();
2837
                break;
2838
            }
2839
        case SDL_MOUSEMOTION:
2840
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2841
                x= event.button.x;
2842
            }else{
2843
                if(event.motion.state != SDL_PRESSED)
2844
                    break;
2845
                x= event.motion.x;
2846
            }
2847
            if (cur_stream) {
2848
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2849
                    uint64_t size=  avio_size(cur_stream->ic->pb);
2850
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2851
                }else{
2852
                    int64_t ts;
2853
                    int ns, hh, mm, ss;
2854
                    int tns, thh, tmm, tss;
2855
                    tns = cur_stream->ic->duration/1000000LL;
2856
                    thh = tns/3600;
2857
                    tmm = (tns%3600)/60;
2858
                    tss = (tns%60);
2859
                    frac = x/cur_stream->width;
2860
                    ns = frac*tns;
2861
                    hh = ns/3600;
2862
                    mm = (ns%3600)/60;
2863
                    ss = (ns%60);
2864
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2865
                            hh, mm, ss, thh, tmm, tss);
2866
                    ts = frac*cur_stream->ic->duration;
2867
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2868
                        ts += cur_stream->ic->start_time;
2869
                    stream_seek(cur_stream, ts, 0, 0);
2870
                }
2871
            }
2872
            break;
2873
        case SDL_VIDEORESIZE:
2874
            if (cur_stream) {
2875
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2876
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2877
                screen_width = cur_stream->width = event.resize.w;
2878
                screen_height= cur_stream->height= event.resize.h;
2879
            }
2880
            break;
2881
        case SDL_QUIT:
2882
        case FF_QUIT_EVENT:
2883
            do_exit();
2884
            break;
2885
        case FF_ALLOC_EVENT:
2886
            video_open(event.user.data1);
2887
            alloc_picture(event.user.data1);
2888
            break;
2889
        case FF_REFRESH_EVENT:
2890
            video_refresh_timer(event.user.data1);
2891
            cur_stream->refresh=0;
2892
            break;
2893
        default:
2894
            break;
2895
        }
2896
    }
2897
}
2898

    
2899
static void opt_frame_size(const char *arg)
2900
{
2901
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2902
        fprintf(stderr, "Incorrect frame size\n");
2903
        exit(1);
2904
    }
2905
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2906
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2907
        exit(1);
2908
    }
2909
}
2910

    
2911
static int opt_width(const char *opt, const char *arg)
2912
{
2913
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2914
    return 0;
2915
}
2916

    
2917
static int opt_height(const char *opt, const char *arg)
2918
{
2919
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2920
    return 0;
2921
}
2922

    
2923
static void opt_format(const char *arg)
2924
{
2925
    file_iformat = av_find_input_format(arg);
2926
    if (!file_iformat) {
2927
        fprintf(stderr, "Unknown input format: %s\n", arg);
2928
        exit(1);
2929
    }
2930
}
2931

    
2932
static void opt_frame_pix_fmt(const char *arg)
2933
{
2934
    frame_pix_fmt = av_get_pix_fmt(arg);
2935
}
2936

    
2937
static int opt_sync(const char *opt, const char *arg)
2938
{
2939
    if (!strcmp(arg, "audio"))
2940
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2941
    else if (!strcmp(arg, "video"))
2942
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2943
    else if (!strcmp(arg, "ext"))
2944
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2945
    else {
2946
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2947
        exit(1);
2948
    }
2949
    return 0;
2950
}
2951

    
2952
static int opt_seek(const char *opt, const char *arg)
2953
{
2954
    start_time = parse_time_or_die(opt, arg, 1);
2955
    return 0;
2956
}
2957

    
2958
static int opt_duration(const char *opt, const char *arg)
2959
{
2960
    duration = parse_time_or_die(opt, arg, 1);
2961
    return 0;
2962
}
2963

    
2964
static int opt_debug(const char *opt, const char *arg)
2965
{
2966
    av_log_set_level(99);
2967
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2968
    return 0;
2969
}
2970

    
2971
static int opt_vismv(const char *opt, const char *arg)
2972
{
2973
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2974
    return 0;
2975
}
2976

    
2977
static int opt_thread_count(const char *opt, const char *arg)
2978
{
2979
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2980
#if !HAVE_THREADS
2981
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2982
#endif
2983
    return 0;
2984
}
2985

    
2986
static const OptionDef options[] = {
2987
#include "cmdutils_common_opts.h"
2988
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2989
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2990
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2991
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2992
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2993
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2994
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2995
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2996
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2997
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2998
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
2999
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3000
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3001
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3002
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3003
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3004
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3005
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3006
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3007
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3008
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3009
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3010
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3011
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3012
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3013
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3014
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3015
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3016
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3017
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3018
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3019
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3020
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3021
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3022
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3023
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3024
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3025
#if CONFIG_AVFILTER
3026
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3027
#endif
3028
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3029
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3030
    { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3031
    { NULL, },
3032
};
3033

    
3034
static void show_usage(void)
3035
{
3036
    printf("Simple media player\n");
3037
    printf("usage: ffplay [options] input_file\n");
3038
    printf("\n");
3039
}
3040

    
3041
static void show_help(void)
3042
{
3043
    av_log_set_callback(log_callback_help);
3044
    show_usage();
3045
    show_help_options(options, "Main options:\n",
3046
                      OPT_EXPERT, 0);
3047
    show_help_options(options, "\nAdvanced options:\n",
3048
                      OPT_EXPERT, OPT_EXPERT);
3049
    printf("\n");
3050
    av_opt_show2(avcodec_opts[0], NULL,
3051
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3052
    printf("\n");
3053
    av_opt_show2(avformat_opts, NULL,
3054
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3055
#if !CONFIG_AVFILTER
3056
    printf("\n");
3057
    av_opt_show2(sws_opts, NULL,
3058
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3059
#endif
3060
    printf("\nWhile playing:\n"
3061
           "q, ESC              quit\n"
3062
           "f                   toggle full screen\n"
3063
           "p, SPC              pause\n"
3064
           "a                   cycle audio channel\n"
3065
           "v                   cycle video channel\n"
3066
           "t                   cycle subtitle channel\n"
3067
           "w                   show audio waves\n"
3068
           "s                   activate frame-step mode\n"
3069
           "left/right          seek backward/forward 10 seconds\n"
3070
           "down/up             seek backward/forward 1 minute\n"
3071
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3072
           );
3073
}
3074

    
3075
static void opt_input_file(const char *filename)
3076
{
3077
    if (input_filename) {
3078
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3079
                filename, input_filename);
3080
        exit(1);
3081
    }
3082
    if (!strcmp(filename, "-"))
3083
        filename = "pipe:";
3084
    input_filename = filename;
3085
}
3086

    
3087
/* Called from the main */
3088
int main(int argc, char **argv)
3089
{
3090
    int flags;
3091

    
3092
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3093

    
3094
    /* register all codecs, demux and protocols */
3095
    avcodec_register_all();
3096
#if CONFIG_AVDEVICE
3097
    avdevice_register_all();
3098
#endif
3099
#if CONFIG_AVFILTER
3100
    avfilter_register_all();
3101
#endif
3102
    av_register_all();
3103

    
3104
    init_opts();
3105

    
3106
    show_banner();
3107

    
3108
    parse_options(argc, argv, options, opt_input_file);
3109

    
3110
    if (!input_filename) {
3111
        show_usage();
3112
        fprintf(stderr, "An input file must be specified\n");
3113
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3114
        exit(1);
3115
    }
3116

    
3117
    if (display_disable) {
3118
        video_disable = 1;
3119
    }
3120
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3121
#if !defined(__MINGW32__) && !defined(__APPLE__)
3122
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3123
#endif
3124
    if (SDL_Init (flags)) {
3125
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3126
        exit(1);
3127
    }
3128

    
3129
    if (!display_disable) {
3130
#if HAVE_SDL_VIDEO_SIZE
3131
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3132
        fs_screen_width = vi->current_w;
3133
        fs_screen_height = vi->current_h;
3134
#endif
3135
    }
3136

    
3137
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3138
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3139
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3140

    
3141
    av_init_packet(&flush_pkt);
3142
    flush_pkt.data= "FLUSH";
3143

    
3144
    cur_stream = stream_open(input_filename, file_iformat);
3145

    
3146
    event_loop();
3147

    
3148
    /* never returns */
3149

    
3150
    return 0;
3151
}