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ffmpeg / ffplay.c @ c743a5e2

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/*
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 * FFplay : Simple Media Player based on the FFmpeg libraries
3
 * Copyright (c) 2003 Fabrice Bellard
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
21

    
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#define _XOPEN_SOURCE 600
23

    
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#include "config.h"
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#include <inttypes.h>
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#include <math.h>
27
#include <limits.h>
28
#include "libavutil/avstring.h"
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#include "libavutil/colorspace.h"
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#include "libavutil/pixdesc.h"
31
#include "libavutil/imgutils.h"
32
#include "libavutil/parseutils.h"
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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";
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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 */
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#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 (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1586
        perms |= AV_PERM_NEG_LINESIZES;
1587

    
1588
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1589
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1590
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1591
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1592
    }
1593
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1594

    
1595
    w = codec->width;
1596
    h = codec->height;
1597
    avcodec_align_dimensions2(codec, &w, &h, stride);
1598
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1599
    w += edge << 1;
1600
    h += edge << 1;
1601

    
1602
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1603
        return -1;
1604

    
1605
    ref->video->w = codec->width;
1606
    ref->video->h = codec->height;
1607
    for(i = 0; i < 4; i ++) {
1608
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1609
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1610

    
1611
        if (ref->data[i]) {
1612
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1613
        }
1614
        pic->data[i]     = ref->data[i];
1615
        pic->linesize[i] = ref->linesize[i];
1616
    }
1617
    pic->opaque = ref;
1618
    pic->age    = INT_MAX;
1619
    pic->type   = FF_BUFFER_TYPE_USER;
1620
    pic->reordered_opaque = codec->reordered_opaque;
1621
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1622
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1623
    return 0;
1624
}
1625

    
1626
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1627
{
1628
    memset(pic->data, 0, sizeof(pic->data));
1629
    avfilter_unref_buffer(pic->opaque);
1630
}
1631

    
1632
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1633
{
1634
    AVFilterBufferRef *ref = pic->opaque;
1635

    
1636
    if (pic->data[0] == NULL) {
1637
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1638
        return codec->get_buffer(codec, pic);
1639
    }
1640

    
1641
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1642
        (codec->pix_fmt != ref->format)) {
1643
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1644
        return -1;
1645
    }
1646

    
1647
    pic->reordered_opaque = codec->reordered_opaque;
1648
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1649
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1650
    return 0;
1651
}
1652

    
1653
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1654
{
1655
    FilterPriv *priv = ctx->priv;
1656
    AVCodecContext *codec;
1657
    if(!opaque) return -1;
1658

    
1659
    priv->is = opaque;
1660
    codec    = priv->is->video_st->codec;
1661
    codec->opaque = ctx;
1662
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1663
        priv->use_dr1 = 1;
1664
        codec->get_buffer     = input_get_buffer;
1665
        codec->release_buffer = input_release_buffer;
1666
        codec->reget_buffer   = input_reget_buffer;
1667
        codec->thread_safe_callbacks = 1;
1668
    }
1669

    
1670
    priv->frame = avcodec_alloc_frame();
1671

    
1672
    return 0;
1673
}
1674

    
1675
static void input_uninit(AVFilterContext *ctx)
1676
{
1677
    FilterPriv *priv = ctx->priv;
1678
    av_free(priv->frame);
1679
}
1680

    
1681
static int input_request_frame(AVFilterLink *link)
1682
{
1683
    FilterPriv *priv = link->src->priv;
1684
    AVFilterBufferRef *picref;
1685
    int64_t pts = 0;
1686
    AVPacket pkt;
1687
    int ret;
1688

    
1689
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1690
        av_free_packet(&pkt);
1691
    if (ret < 0)
1692
        return -1;
1693

    
1694
    if(priv->use_dr1) {
1695
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1696
    } else {
1697
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1698
        av_image_copy(picref->data, picref->linesize,
1699
                      priv->frame->data, priv->frame->linesize,
1700
                      picref->format, link->w, link->h);
1701
    }
1702
    av_free_packet(&pkt);
1703

    
1704
    picref->pts = pts;
1705
    picref->pos = pkt.pos;
1706
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1707
    avfilter_start_frame(link, picref);
1708
    avfilter_draw_slice(link, 0, link->h, 1);
1709
    avfilter_end_frame(link);
1710

    
1711
    return 0;
1712
}
1713

    
1714
static int input_query_formats(AVFilterContext *ctx)
1715
{
1716
    FilterPriv *priv = ctx->priv;
1717
    enum PixelFormat pix_fmts[] = {
1718
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1719
    };
1720

    
1721
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1722
    return 0;
1723
}
1724

    
1725
static int input_config_props(AVFilterLink *link)
1726
{
1727
    FilterPriv *priv  = link->src->priv;
1728
    AVCodecContext *c = priv->is->video_st->codec;
1729

    
1730
    link->w = c->width;
1731
    link->h = c->height;
1732
    link->time_base = priv->is->video_st->time_base;
1733

    
1734
    return 0;
1735
}
1736

    
1737
static AVFilter input_filter =
1738
{
1739
    .name      = "ffplay_input",
1740

    
1741
    .priv_size = sizeof(FilterPriv),
1742

    
1743
    .init      = input_init,
1744
    .uninit    = input_uninit,
1745

    
1746
    .query_formats = input_query_formats,
1747

    
1748
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1749
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1750
                                    .type = AVMEDIA_TYPE_VIDEO,
1751
                                    .request_frame = input_request_frame,
1752
                                    .config_props  = input_config_props, },
1753
                                  { .name = NULL }},
1754
};
1755

    
1756
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1757
{
1758
    char sws_flags_str[128];
1759
    int ret;
1760
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1761
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1762
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1763
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1764

    
1765
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1766
                                            NULL, is, graph)) < 0)
1767
        goto the_end;
1768
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1769
                                            NULL, &ffsink_ctx, graph)) < 0)
1770
        goto the_end;
1771

    
1772
    if(vfilters) {
1773
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1774
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1775

    
1776
        outputs->name    = av_strdup("in");
1777
        outputs->filter_ctx = filt_src;
1778
        outputs->pad_idx = 0;
1779
        outputs->next    = NULL;
1780

    
1781
        inputs->name    = av_strdup("out");
1782
        inputs->filter_ctx = filt_out;
1783
        inputs->pad_idx = 0;
1784
        inputs->next    = NULL;
1785

    
1786
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1787
            goto the_end;
1788
        av_freep(&vfilters);
1789
    } else {
1790
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1791
            goto the_end;
1792
    }
1793

    
1794
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1795
        goto the_end;
1796

    
1797
    is->out_video_filter = filt_out;
1798
the_end:
1799
    return ret;
1800
}
1801

    
1802
#endif  /* CONFIG_AVFILTER */
1803

    
1804
static int video_thread(void *arg)
1805
{
1806
    VideoState *is = arg;
1807
    AVFrame *frame= avcodec_alloc_frame();
1808
    int64_t pts_int;
1809
    double pts;
1810
    int ret;
1811

    
1812
#if CONFIG_AVFILTER
1813
    AVFilterGraph *graph = avfilter_graph_alloc();
1814
    AVFilterContext *filt_out = NULL;
1815
    int64_t pos;
1816

    
1817
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1818
        goto the_end;
1819
    filt_out = is->out_video_filter;
1820
#endif
1821

    
1822
    for(;;) {
1823
#if !CONFIG_AVFILTER
1824
        AVPacket pkt;
1825
#else
1826
        AVFilterBufferRef *picref;
1827
        AVRational tb;
1828
#endif
1829
        while (is->paused && !is->videoq.abort_request)
1830
            SDL_Delay(10);
1831
#if CONFIG_AVFILTER
1832
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1833
        if (picref) {
1834
            pts_int = picref->pts;
1835
            pos     = picref->pos;
1836
            frame->opaque = picref;
1837
        }
1838

    
1839
        if (av_cmp_q(tb, is->video_st->time_base)) {
1840
            av_unused int64_t pts1 = pts_int;
1841
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1842
            av_dlog(NULL, "video_thread(): "
1843
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1844
                    tb.num, tb.den, pts1,
1845
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1846
        }
1847
#else
1848
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1849
#endif
1850

    
1851
        if (ret < 0) goto the_end;
1852

    
1853
        if (!ret)
1854
            continue;
1855

    
1856
        pts = pts_int*av_q2d(is->video_st->time_base);
1857

    
1858
#if CONFIG_AVFILTER
1859
        ret = output_picture2(is, frame, pts, pos);
1860
#else
1861
        ret = output_picture2(is, frame, pts,  pkt.pos);
1862
        av_free_packet(&pkt);
1863
#endif
1864
        if (ret < 0)
1865
            goto the_end;
1866

    
1867
        if (step)
1868
            if (cur_stream)
1869
                stream_pause(cur_stream);
1870
    }
1871
 the_end:
1872
#if CONFIG_AVFILTER
1873
    avfilter_graph_free(&graph);
1874
#endif
1875
    av_free(frame);
1876
    return 0;
1877
}
1878

    
1879
static int subtitle_thread(void *arg)
1880
{
1881
    VideoState *is = arg;
1882
    SubPicture *sp;
1883
    AVPacket pkt1, *pkt = &pkt1;
1884
    int len1, got_subtitle;
1885
    double pts;
1886
    int i, j;
1887
    int r, g, b, y, u, v, a;
1888

    
1889
    for(;;) {
1890
        while (is->paused && !is->subtitleq.abort_request) {
1891
            SDL_Delay(10);
1892
        }
1893
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1894
            break;
1895

    
1896
        if(pkt->data == flush_pkt.data){
1897
            avcodec_flush_buffers(is->subtitle_st->codec);
1898
            continue;
1899
        }
1900
        SDL_LockMutex(is->subpq_mutex);
1901
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1902
               !is->subtitleq.abort_request) {
1903
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1904
        }
1905
        SDL_UnlockMutex(is->subpq_mutex);
1906

    
1907
        if (is->subtitleq.abort_request)
1908
            goto the_end;
1909

    
1910
        sp = &is->subpq[is->subpq_windex];
1911

    
1912
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1913
           this packet, if any */
1914
        pts = 0;
1915
        if (pkt->pts != AV_NOPTS_VALUE)
1916
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1917

    
1918
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1919
                                    &sp->sub, &got_subtitle,
1920
                                    pkt);
1921
//            if (len1 < 0)
1922
//                break;
1923
        if (got_subtitle && sp->sub.format == 0) {
1924
            sp->pts = pts;
1925

    
1926
            for (i = 0; i < sp->sub.num_rects; i++)
1927
            {
1928
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1929
                {
1930
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1931
                    y = RGB_TO_Y_CCIR(r, g, b);
1932
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1933
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1934
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1935
                }
1936
            }
1937

    
1938
            /* now we can update the picture count */
1939
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1940
                is->subpq_windex = 0;
1941
            SDL_LockMutex(is->subpq_mutex);
1942
            is->subpq_size++;
1943
            SDL_UnlockMutex(is->subpq_mutex);
1944
        }
1945
        av_free_packet(pkt);
1946
//        if (step)
1947
//            if (cur_stream)
1948
//                stream_pause(cur_stream);
1949
    }
1950
 the_end:
1951
    return 0;
1952
}
1953

    
1954
/* copy samples for viewing in editor window */
1955
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1956
{
1957
    int size, len, channels;
1958

    
1959
    channels = is->audio_st->codec->channels;
1960

    
1961
    size = samples_size / sizeof(short);
1962
    while (size > 0) {
1963
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1964
        if (len > size)
1965
            len = size;
1966
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1967
        samples += len;
1968
        is->sample_array_index += len;
1969
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1970
            is->sample_array_index = 0;
1971
        size -= len;
1972
    }
1973
}
1974

    
1975
/* return the new audio buffer size (samples can be added or deleted
1976
   to get better sync if video or external master clock) */
1977
static int synchronize_audio(VideoState *is, short *samples,
1978
                             int samples_size1, double pts)
1979
{
1980
    int n, samples_size;
1981
    double ref_clock;
1982

    
1983
    n = 2 * is->audio_st->codec->channels;
1984
    samples_size = samples_size1;
1985

    
1986
    /* if not master, then we try to remove or add samples to correct the clock */
1987
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1988
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1989
        double diff, avg_diff;
1990
        int wanted_size, min_size, max_size, nb_samples;
1991

    
1992
        ref_clock = get_master_clock(is);
1993
        diff = get_audio_clock(is) - ref_clock;
1994

    
1995
        if (diff < AV_NOSYNC_THRESHOLD) {
1996
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1997
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1998
                /* not enough measures to have a correct estimate */
1999
                is->audio_diff_avg_count++;
2000
            } else {
2001
                /* estimate the A-V difference */
2002
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2003

    
2004
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2005
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2006
                    nb_samples = samples_size / n;
2007

    
2008
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2009
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2010
                    if (wanted_size < min_size)
2011
                        wanted_size = min_size;
2012
                    else if (wanted_size > max_size)
2013
                        wanted_size = max_size;
2014

    
2015
                    /* add or remove samples to correction the synchro */
2016
                    if (wanted_size < samples_size) {
2017
                        /* remove samples */
2018
                        samples_size = wanted_size;
2019
                    } else if (wanted_size > samples_size) {
2020
                        uint8_t *samples_end, *q;
2021
                        int nb;
2022

    
2023
                        /* add samples */
2024
                        nb = (samples_size - wanted_size);
2025
                        samples_end = (uint8_t *)samples + samples_size - n;
2026
                        q = samples_end + n;
2027
                        while (nb > 0) {
2028
                            memcpy(q, samples_end, n);
2029
                            q += n;
2030
                            nb -= n;
2031
                        }
2032
                        samples_size = wanted_size;
2033
                    }
2034
                }
2035
#if 0
2036
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2037
                       diff, avg_diff, samples_size - samples_size1,
2038
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2039
#endif
2040
            }
2041
        } else {
2042
            /* too big difference : may be initial PTS errors, so
2043
               reset A-V filter */
2044
            is->audio_diff_avg_count = 0;
2045
            is->audio_diff_cum = 0;
2046
        }
2047
    }
2048

    
2049
    return samples_size;
2050
}
2051

    
2052
/* decode one audio frame and returns its uncompressed size */
2053
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2054
{
2055
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2056
    AVPacket *pkt = &is->audio_pkt;
2057
    AVCodecContext *dec= is->audio_st->codec;
2058
    int n, len1, data_size;
2059
    double pts;
2060

    
2061
    for(;;) {
2062
        /* NOTE: the audio packet can contain several frames */
2063
        while (pkt_temp->size > 0) {
2064
            data_size = sizeof(is->audio_buf1);
2065
            len1 = avcodec_decode_audio3(dec,
2066
                                        (int16_t *)is->audio_buf1, &data_size,
2067
                                        pkt_temp);
2068
            if (len1 < 0) {
2069
                /* if error, we skip the frame */
2070
                pkt_temp->size = 0;
2071
                break;
2072
            }
2073

    
2074
            pkt_temp->data += len1;
2075
            pkt_temp->size -= len1;
2076
            if (data_size <= 0)
2077
                continue;
2078

    
2079
            if (dec->sample_fmt != is->audio_src_fmt) {
2080
                if (is->reformat_ctx)
2081
                    av_audio_convert_free(is->reformat_ctx);
2082
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2083
                                                         dec->sample_fmt, 1, NULL, 0);
2084
                if (!is->reformat_ctx) {
2085
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2086
                        av_get_sample_fmt_name(dec->sample_fmt),
2087
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2088
                        break;
2089
                }
2090
                is->audio_src_fmt= dec->sample_fmt;
2091
            }
2092

    
2093
            if (is->reformat_ctx) {
2094
                const void *ibuf[6]= {is->audio_buf1};
2095
                void *obuf[6]= {is->audio_buf2};
2096
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2097
                int ostride[6]= {2};
2098
                int len= data_size/istride[0];
2099
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2100
                    printf("av_audio_convert() failed\n");
2101
                    break;
2102
                }
2103
                is->audio_buf= is->audio_buf2;
2104
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2105
                          remove this legacy cruft */
2106
                data_size= len*2;
2107
            }else{
2108
                is->audio_buf= is->audio_buf1;
2109
            }
2110

    
2111
            /* if no pts, then compute it */
2112
            pts = is->audio_clock;
2113
            *pts_ptr = pts;
2114
            n = 2 * dec->channels;
2115
            is->audio_clock += (double)data_size /
2116
                (double)(n * dec->sample_rate);
2117
#if defined(DEBUG_SYNC)
2118
            {
2119
                static double last_clock;
2120
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2121
                       is->audio_clock - last_clock,
2122
                       is->audio_clock, pts);
2123
                last_clock = is->audio_clock;
2124
            }
2125
#endif
2126
            return data_size;
2127
        }
2128

    
2129
        /* free the current packet */
2130
        if (pkt->data)
2131
            av_free_packet(pkt);
2132

    
2133
        if (is->paused || is->audioq.abort_request) {
2134
            return -1;
2135
        }
2136

    
2137
        /* read next packet */
2138
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2139
            return -1;
2140
        if(pkt->data == flush_pkt.data){
2141
            avcodec_flush_buffers(dec);
2142
            continue;
2143
        }
2144

    
2145
        pkt_temp->data = pkt->data;
2146
        pkt_temp->size = pkt->size;
2147

    
2148
        /* if update the audio clock with the pts */
2149
        if (pkt->pts != AV_NOPTS_VALUE) {
2150
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2151
        }
2152
    }
2153
}
2154

    
2155
/* get the current audio output buffer size, in samples. With SDL, we
2156
   cannot have a precise information */
2157
static int audio_write_get_buf_size(VideoState *is)
2158
{
2159
    return is->audio_buf_size - is->audio_buf_index;
2160
}
2161

    
2162

    
2163
/* prepare a new audio buffer */
2164
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2165
{
2166
    VideoState *is = opaque;
2167
    int audio_size, len1;
2168
    double pts;
2169

    
2170
    audio_callback_time = av_gettime();
2171

    
2172
    while (len > 0) {
2173
        if (is->audio_buf_index >= is->audio_buf_size) {
2174
           audio_size = audio_decode_frame(is, &pts);
2175
           if (audio_size < 0) {
2176
                /* if error, just output silence */
2177
               is->audio_buf = is->audio_buf1;
2178
               is->audio_buf_size = 1024;
2179
               memset(is->audio_buf, 0, is->audio_buf_size);
2180
           } else {
2181
               if (is->show_audio)
2182
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2183
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2184
                                              pts);
2185
               is->audio_buf_size = audio_size;
2186
           }
2187
           is->audio_buf_index = 0;
2188
        }
2189
        len1 = is->audio_buf_size - is->audio_buf_index;
2190
        if (len1 > len)
2191
            len1 = len;
2192
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2193
        len -= len1;
2194
        stream += len1;
2195
        is->audio_buf_index += len1;
2196
    }
2197
}
2198

    
2199
/* open a given stream. Return 0 if OK */
2200
static int stream_component_open(VideoState *is, int stream_index)
2201
{
2202
    AVFormatContext *ic = is->ic;
2203
    AVCodecContext *avctx;
2204
    AVCodec *codec;
2205
    SDL_AudioSpec wanted_spec, spec;
2206

    
2207
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2208
        return -1;
2209
    avctx = ic->streams[stream_index]->codec;
2210

    
2211
    /* prepare audio output */
2212
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2213
        if (avctx->channels > 0) {
2214
            avctx->request_channels = FFMIN(2, avctx->channels);
2215
        } else {
2216
            avctx->request_channels = 2;
2217
        }
2218
    }
2219

    
2220
    codec = avcodec_find_decoder(avctx->codec_id);
2221
    avctx->debug_mv = debug_mv;
2222
    avctx->debug = debug;
2223
    avctx->workaround_bugs = workaround_bugs;
2224
    avctx->lowres = lowres;
2225
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2226
    avctx->idct_algo= idct;
2227
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2228
    avctx->skip_frame= skip_frame;
2229
    avctx->skip_idct= skip_idct;
2230
    avctx->skip_loop_filter= skip_loop_filter;
2231
    avctx->error_recognition= error_recognition;
2232
    avctx->error_concealment= error_concealment;
2233
    avctx->thread_count= thread_count;
2234

    
2235
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2236

    
2237
    if (!codec ||
2238
        avcodec_open(avctx, codec) < 0)
2239
        return -1;
2240

    
2241
    /* prepare audio output */
2242
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2243
        wanted_spec.freq = avctx->sample_rate;
2244
        wanted_spec.format = AUDIO_S16SYS;
2245
        wanted_spec.channels = avctx->channels;
2246
        wanted_spec.silence = 0;
2247
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2248
        wanted_spec.callback = sdl_audio_callback;
2249
        wanted_spec.userdata = is;
2250
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2251
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2252
            return -1;
2253
        }
2254
        is->audio_hw_buf_size = spec.size;
2255
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2256
    }
2257

    
2258
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2259
    switch(avctx->codec_type) {
2260
    case AVMEDIA_TYPE_AUDIO:
2261
        is->audio_stream = stream_index;
2262
        is->audio_st = ic->streams[stream_index];
2263
        is->audio_buf_size = 0;
2264
        is->audio_buf_index = 0;
2265

    
2266
        /* init averaging filter */
2267
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2268
        is->audio_diff_avg_count = 0;
2269
        /* since we do not have a precise anough audio fifo fullness,
2270
           we correct audio sync only if larger than this threshold */
2271
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2272

    
2273
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2274
        packet_queue_init(&is->audioq);
2275
        SDL_PauseAudio(0);
2276
        break;
2277
    case AVMEDIA_TYPE_VIDEO:
2278
        is->video_stream = stream_index;
2279
        is->video_st = ic->streams[stream_index];
2280

    
2281
//        is->video_current_pts_time = av_gettime();
2282

    
2283
        packet_queue_init(&is->videoq);
2284
        is->video_tid = SDL_CreateThread(video_thread, is);
2285
        break;
2286
    case AVMEDIA_TYPE_SUBTITLE:
2287
        is->subtitle_stream = stream_index;
2288
        is->subtitle_st = ic->streams[stream_index];
2289
        packet_queue_init(&is->subtitleq);
2290

    
2291
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2292
        break;
2293
    default:
2294
        break;
2295
    }
2296
    return 0;
2297
}
2298

    
2299
static void stream_component_close(VideoState *is, int stream_index)
2300
{
2301
    AVFormatContext *ic = is->ic;
2302
    AVCodecContext *avctx;
2303

    
2304
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2305
        return;
2306
    avctx = ic->streams[stream_index]->codec;
2307

    
2308
    switch(avctx->codec_type) {
2309
    case AVMEDIA_TYPE_AUDIO:
2310
        packet_queue_abort(&is->audioq);
2311

    
2312
        SDL_CloseAudio();
2313

    
2314
        packet_queue_end(&is->audioq);
2315
        if (is->reformat_ctx)
2316
            av_audio_convert_free(is->reformat_ctx);
2317
        is->reformat_ctx = NULL;
2318
        break;
2319
    case AVMEDIA_TYPE_VIDEO:
2320
        packet_queue_abort(&is->videoq);
2321

    
2322
        /* note: we also signal this mutex to make sure we deblock the
2323
           video thread in all cases */
2324
        SDL_LockMutex(is->pictq_mutex);
2325
        SDL_CondSignal(is->pictq_cond);
2326
        SDL_UnlockMutex(is->pictq_mutex);
2327

    
2328
        SDL_WaitThread(is->video_tid, NULL);
2329

    
2330
        packet_queue_end(&is->videoq);
2331
        break;
2332
    case AVMEDIA_TYPE_SUBTITLE:
2333
        packet_queue_abort(&is->subtitleq);
2334

    
2335
        /* note: we also signal this mutex to make sure we deblock the
2336
           video thread in all cases */
2337
        SDL_LockMutex(is->subpq_mutex);
2338
        is->subtitle_stream_changed = 1;
2339

    
2340
        SDL_CondSignal(is->subpq_cond);
2341
        SDL_UnlockMutex(is->subpq_mutex);
2342

    
2343
        SDL_WaitThread(is->subtitle_tid, NULL);
2344

    
2345
        packet_queue_end(&is->subtitleq);
2346
        break;
2347
    default:
2348
        break;
2349
    }
2350

    
2351
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2352
    avcodec_close(avctx);
2353
    switch(avctx->codec_type) {
2354
    case AVMEDIA_TYPE_AUDIO:
2355
        is->audio_st = NULL;
2356
        is->audio_stream = -1;
2357
        break;
2358
    case AVMEDIA_TYPE_VIDEO:
2359
        is->video_st = NULL;
2360
        is->video_stream = -1;
2361
        break;
2362
    case AVMEDIA_TYPE_SUBTITLE:
2363
        is->subtitle_st = NULL;
2364
        is->subtitle_stream = -1;
2365
        break;
2366
    default:
2367
        break;
2368
    }
2369
}
2370

    
2371
/* since we have only one decoding thread, we can use a global
2372
   variable instead of a thread local variable */
2373
static VideoState *global_video_state;
2374

    
2375
static int decode_interrupt_cb(void)
2376
{
2377
    return (global_video_state && global_video_state->abort_request);
2378
}
2379

    
2380
/* this thread gets the stream from the disk or the network */
2381
static int decode_thread(void *arg)
2382
{
2383
    VideoState *is = arg;
2384
    AVFormatContext *ic;
2385
    int err, i, ret;
2386
    int st_index[AVMEDIA_TYPE_NB];
2387
    AVPacket pkt1, *pkt = &pkt1;
2388
    AVFormatParameters params, *ap = &params;
2389
    int eof=0;
2390
    int pkt_in_play_range = 0;
2391

    
2392
    ic = avformat_alloc_context();
2393

    
2394
    memset(st_index, -1, sizeof(st_index));
2395
    is->video_stream = -1;
2396
    is->audio_stream = -1;
2397
    is->subtitle_stream = -1;
2398

    
2399
    global_video_state = is;
2400
    url_set_interrupt_cb(decode_interrupt_cb);
2401

    
2402
    memset(ap, 0, sizeof(*ap));
2403

    
2404
    ap->prealloced_context = 1;
2405
    ap->width = frame_width;
2406
    ap->height= frame_height;
2407
    ap->time_base= (AVRational){1, 25};
2408
    ap->pix_fmt = frame_pix_fmt;
2409

    
2410
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2411

    
2412
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2413
    if (err < 0) {
2414
        print_error(is->filename, err);
2415
        ret = -1;
2416
        goto fail;
2417
    }
2418
    is->ic = ic;
2419

    
2420
    if(genpts)
2421
        ic->flags |= AVFMT_FLAG_GENPTS;
2422

    
2423
    err = av_find_stream_info(ic);
2424
    if (err < 0) {
2425
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2426
        ret = -1;
2427
        goto fail;
2428
    }
2429
    if(ic->pb)
2430
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2431

    
2432
    if(seek_by_bytes<0)
2433
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2434

    
2435
    /* if seeking requested, we execute it */
2436
    if (start_time != AV_NOPTS_VALUE) {
2437
        int64_t timestamp;
2438

    
2439
        timestamp = start_time;
2440
        /* add the stream start time */
2441
        if (ic->start_time != AV_NOPTS_VALUE)
2442
            timestamp += ic->start_time;
2443
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2444
        if (ret < 0) {
2445
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2446
                    is->filename, (double)timestamp / AV_TIME_BASE);
2447
        }
2448
    }
2449

    
2450
    for (i = 0; i < ic->nb_streams; i++)
2451
        ic->streams[i]->discard = AVDISCARD_ALL;
2452
    if (!video_disable)
2453
        st_index[AVMEDIA_TYPE_VIDEO] =
2454
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2455
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2456
    if (!audio_disable)
2457
        st_index[AVMEDIA_TYPE_AUDIO] =
2458
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2459
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2460
                                st_index[AVMEDIA_TYPE_VIDEO],
2461
                                NULL, 0);
2462
    if (!video_disable)
2463
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2464
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2465
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2466
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2467
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2468
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2469
                                NULL, 0);
2470
    if (show_status) {
2471
        av_dump_format(ic, 0, is->filename, 0);
2472
    }
2473

    
2474
    /* open the streams */
2475
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2476
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2477
    }
2478

    
2479
    ret=-1;
2480
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2481
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2482
    }
2483
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2484
    if(ret<0) {
2485
        if (!display_disable)
2486
            is->show_audio = 2;
2487
    }
2488

    
2489
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2490
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2491
    }
2492

    
2493
    if (is->video_stream < 0 && is->audio_stream < 0) {
2494
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2495
        ret = -1;
2496
        goto fail;
2497
    }
2498

    
2499
    for(;;) {
2500
        if (is->abort_request)
2501
            break;
2502
        if (is->paused != is->last_paused) {
2503
            is->last_paused = is->paused;
2504
            if (is->paused)
2505
                is->read_pause_return= av_read_pause(ic);
2506
            else
2507
                av_read_play(ic);
2508
        }
2509
#if CONFIG_RTSP_DEMUXER
2510
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2511
            /* wait 10 ms to avoid trying to get another packet */
2512
            /* XXX: horrible */
2513
            SDL_Delay(10);
2514
            continue;
2515
        }
2516
#endif
2517
        if (is->seek_req) {
2518
            int64_t seek_target= is->seek_pos;
2519
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2520
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2521
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2522
//      of the seek_pos/seek_rel variables
2523

    
2524
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2525
            if (ret < 0) {
2526
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2527
            }else{
2528
                if (is->audio_stream >= 0) {
2529
                    packet_queue_flush(&is->audioq);
2530
                    packet_queue_put(&is->audioq, &flush_pkt);
2531
                }
2532
                if (is->subtitle_stream >= 0) {
2533
                    packet_queue_flush(&is->subtitleq);
2534
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2535
                }
2536
                if (is->video_stream >= 0) {
2537
                    packet_queue_flush(&is->videoq);
2538
                    packet_queue_put(&is->videoq, &flush_pkt);
2539
                }
2540
            }
2541
            is->seek_req = 0;
2542
            eof= 0;
2543
        }
2544

    
2545
        /* if the queue are full, no need to read more */
2546
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2547
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2548
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2549
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2550
            /* wait 10 ms */
2551
            SDL_Delay(10);
2552
            continue;
2553
        }
2554
        if(eof) {
2555
            if(is->video_stream >= 0){
2556
                av_init_packet(pkt);
2557
                pkt->data=NULL;
2558
                pkt->size=0;
2559
                pkt->stream_index= is->video_stream;
2560
                packet_queue_put(&is->videoq, pkt);
2561
            }
2562
            SDL_Delay(10);
2563
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2564
                if(loop!=1 && (!loop || --loop)){
2565
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2566
                }else if(autoexit){
2567
                    ret=AVERROR_EOF;
2568
                    goto fail;
2569
                }
2570
            }
2571
            eof=0;
2572
            continue;
2573
        }
2574
        ret = av_read_frame(ic, pkt);
2575
        if (ret < 0) {
2576
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2577
                eof=1;
2578
            if (ic->pb && ic->pb->error)
2579
                break;
2580
            SDL_Delay(100); /* wait for user event */
2581
            continue;
2582
        }
2583
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2584
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2585
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2586
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2587
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2588
                <= ((double)duration/1000000);
2589
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2590
            packet_queue_put(&is->audioq, pkt);
2591
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2592
            packet_queue_put(&is->videoq, pkt);
2593
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2594
            packet_queue_put(&is->subtitleq, pkt);
2595
        } else {
2596
            av_free_packet(pkt);
2597
        }
2598
    }
2599
    /* wait until the end */
2600
    while (!is->abort_request) {
2601
        SDL_Delay(100);
2602
    }
2603

    
2604
    ret = 0;
2605
 fail:
2606
    /* disable interrupting */
2607
    global_video_state = NULL;
2608

    
2609
    /* close each stream */
2610
    if (is->audio_stream >= 0)
2611
        stream_component_close(is, is->audio_stream);
2612
    if (is->video_stream >= 0)
2613
        stream_component_close(is, is->video_stream);
2614
    if (is->subtitle_stream >= 0)
2615
        stream_component_close(is, is->subtitle_stream);
2616
    if (is->ic) {
2617
        av_close_input_file(is->ic);
2618
        is->ic = NULL; /* safety */
2619
    }
2620
    url_set_interrupt_cb(NULL);
2621

    
2622
    if (ret != 0) {
2623
        SDL_Event event;
2624

    
2625
        event.type = FF_QUIT_EVENT;
2626
        event.user.data1 = is;
2627
        SDL_PushEvent(&event);
2628
    }
2629
    return 0;
2630
}
2631

    
2632
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2633
{
2634
    VideoState *is;
2635

    
2636
    is = av_mallocz(sizeof(VideoState));
2637
    if (!is)
2638
        return NULL;
2639
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2640
    is->iformat = iformat;
2641
    is->ytop = 0;
2642
    is->xleft = 0;
2643

    
2644
    /* start video display */
2645
    is->pictq_mutex = SDL_CreateMutex();
2646
    is->pictq_cond = SDL_CreateCond();
2647

    
2648
    is->subpq_mutex = SDL_CreateMutex();
2649
    is->subpq_cond = SDL_CreateCond();
2650

    
2651
    is->av_sync_type = av_sync_type;
2652
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2653
    if (!is->parse_tid) {
2654
        av_free(is);
2655
        return NULL;
2656
    }
2657
    return is;
2658
}
2659

    
2660
static void stream_cycle_channel(VideoState *is, int codec_type)
2661
{
2662
    AVFormatContext *ic = is->ic;
2663
    int start_index, stream_index;
2664
    AVStream *st;
2665

    
2666
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2667
        start_index = is->video_stream;
2668
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2669
        start_index = is->audio_stream;
2670
    else
2671
        start_index = is->subtitle_stream;
2672
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2673
        return;
2674
    stream_index = start_index;
2675
    for(;;) {
2676
        if (++stream_index >= is->ic->nb_streams)
2677
        {
2678
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2679
            {
2680
                stream_index = -1;
2681
                goto the_end;
2682
            } else
2683
                stream_index = 0;
2684
        }
2685
        if (stream_index == start_index)
2686
            return;
2687
        st = ic->streams[stream_index];
2688
        if (st->codec->codec_type == codec_type) {
2689
            /* check that parameters are OK */
2690
            switch(codec_type) {
2691
            case AVMEDIA_TYPE_AUDIO:
2692
                if (st->codec->sample_rate != 0 &&
2693
                    st->codec->channels != 0)
2694
                    goto the_end;
2695
                break;
2696
            case AVMEDIA_TYPE_VIDEO:
2697
            case AVMEDIA_TYPE_SUBTITLE:
2698
                goto the_end;
2699
            default:
2700
                break;
2701
            }
2702
        }
2703
    }
2704
 the_end:
2705
    stream_component_close(is, start_index);
2706
    stream_component_open(is, stream_index);
2707
}
2708

    
2709

    
2710
static void toggle_full_screen(void)
2711
{
2712
    is_full_screen = !is_full_screen;
2713
    if (!fs_screen_width) {
2714
        /* use default SDL method */
2715
//        SDL_WM_ToggleFullScreen(screen);
2716
    }
2717
    video_open(cur_stream);
2718
}
2719

    
2720
static void toggle_pause(void)
2721
{
2722
    if (cur_stream)
2723
        stream_pause(cur_stream);
2724
    step = 0;
2725
}
2726

    
2727
static void step_to_next_frame(void)
2728
{
2729
    if (cur_stream) {
2730
        /* if the stream is paused unpause it, then step */
2731
        if (cur_stream->paused)
2732
            stream_pause(cur_stream);
2733
    }
2734
    step = 1;
2735
}
2736

    
2737
static void toggle_audio_display(void)
2738
{
2739
    if (cur_stream) {
2740
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2741
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2742
        fill_rectangle(screen,
2743
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2744
                    bgcolor);
2745
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2746
    }
2747
}
2748

    
2749
/* handle an event sent by the GUI */
2750
static void event_loop(void)
2751
{
2752
    SDL_Event event;
2753
    double incr, pos, frac;
2754

    
2755
    for(;;) {
2756
        double x;
2757
        SDL_WaitEvent(&event);
2758
        switch(event.type) {
2759
        case SDL_KEYDOWN:
2760
            if (exit_on_keydown) {
2761
                do_exit();
2762
                break;
2763
            }
2764
            switch(event.key.keysym.sym) {
2765
            case SDLK_ESCAPE:
2766
            case SDLK_q:
2767
                do_exit();
2768
                break;
2769
            case SDLK_f:
2770
                toggle_full_screen();
2771
                break;
2772
            case SDLK_p:
2773
            case SDLK_SPACE:
2774
                toggle_pause();
2775
                break;
2776
            case SDLK_s: //S: Step to next frame
2777
                step_to_next_frame();
2778
                break;
2779
            case SDLK_a:
2780
                if (cur_stream)
2781
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2782
                break;
2783
            case SDLK_v:
2784
                if (cur_stream)
2785
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2786
                break;
2787
            case SDLK_t:
2788
                if (cur_stream)
2789
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2790
                break;
2791
            case SDLK_w:
2792
                toggle_audio_display();
2793
                break;
2794
            case SDLK_LEFT:
2795
                incr = -10.0;
2796
                goto do_seek;
2797
            case SDLK_RIGHT:
2798
                incr = 10.0;
2799
                goto do_seek;
2800
            case SDLK_UP:
2801
                incr = 60.0;
2802
                goto do_seek;
2803
            case SDLK_DOWN:
2804
                incr = -60.0;
2805
            do_seek:
2806
                if (cur_stream) {
2807
                    if (seek_by_bytes) {
2808
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2809
                            pos= cur_stream->video_current_pos;
2810
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2811
                            pos= cur_stream->audio_pkt.pos;
2812
                        }else
2813
                            pos = avio_tell(cur_stream->ic->pb);
2814
                        if (cur_stream->ic->bit_rate)
2815
                            incr *= cur_stream->ic->bit_rate / 8.0;
2816
                        else
2817
                            incr *= 180000.0;
2818
                        pos += incr;
2819
                        stream_seek(cur_stream, pos, incr, 1);
2820
                    } else {
2821
                        pos = get_master_clock(cur_stream);
2822
                        pos += incr;
2823
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2824
                    }
2825
                }
2826
                break;
2827
            default:
2828
                break;
2829
            }
2830
            break;
2831
        case SDL_MOUSEBUTTONDOWN:
2832
            if (exit_on_mousedown) {
2833
                do_exit();
2834
                break;
2835
            }
2836
        case SDL_MOUSEMOTION:
2837
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2838
                x= event.button.x;
2839
            }else{
2840
                if(event.motion.state != SDL_PRESSED)
2841
                    break;
2842
                x= event.motion.x;
2843
            }
2844
            if (cur_stream) {
2845
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2846
                    uint64_t size=  avio_size(cur_stream->ic->pb);
2847
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2848
                }else{
2849
                    int64_t ts;
2850
                    int ns, hh, mm, ss;
2851
                    int tns, thh, tmm, tss;
2852
                    tns = cur_stream->ic->duration/1000000LL;
2853
                    thh = tns/3600;
2854
                    tmm = (tns%3600)/60;
2855
                    tss = (tns%60);
2856
                    frac = x/cur_stream->width;
2857
                    ns = frac*tns;
2858
                    hh = ns/3600;
2859
                    mm = (ns%3600)/60;
2860
                    ss = (ns%60);
2861
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2862
                            hh, mm, ss, thh, tmm, tss);
2863
                    ts = frac*cur_stream->ic->duration;
2864
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2865
                        ts += cur_stream->ic->start_time;
2866
                    stream_seek(cur_stream, ts, 0, 0);
2867
                }
2868
            }
2869
            break;
2870
        case SDL_VIDEORESIZE:
2871
            if (cur_stream) {
2872
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2873
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2874
                screen_width = cur_stream->width = event.resize.w;
2875
                screen_height= cur_stream->height= event.resize.h;
2876
            }
2877
            break;
2878
        case SDL_QUIT:
2879
        case FF_QUIT_EVENT:
2880
            do_exit();
2881
            break;
2882
        case FF_ALLOC_EVENT:
2883
            video_open(event.user.data1);
2884
            alloc_picture(event.user.data1);
2885
            break;
2886
        case FF_REFRESH_EVENT:
2887
            video_refresh_timer(event.user.data1);
2888
            cur_stream->refresh=0;
2889
            break;
2890
        default:
2891
            break;
2892
        }
2893
    }
2894
}
2895

    
2896
static void opt_frame_size(const char *arg)
2897
{
2898
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2899
        fprintf(stderr, "Incorrect frame size\n");
2900
        exit(1);
2901
    }
2902
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2903
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2904
        exit(1);
2905
    }
2906
}
2907

    
2908
static int opt_width(const char *opt, const char *arg)
2909
{
2910
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2911
    return 0;
2912
}
2913

    
2914
static int opt_height(const char *opt, const char *arg)
2915
{
2916
    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2917
    return 0;
2918
}
2919

    
2920
static void opt_format(const char *arg)
2921
{
2922
    file_iformat = av_find_input_format(arg);
2923
    if (!file_iformat) {
2924
        fprintf(stderr, "Unknown input format: %s\n", arg);
2925
        exit(1);
2926
    }
2927
}
2928

    
2929
static void opt_frame_pix_fmt(const char *arg)
2930
{
2931
    frame_pix_fmt = av_get_pix_fmt(arg);
2932
}
2933

    
2934
static int opt_sync(const char *opt, const char *arg)
2935
{
2936
    if (!strcmp(arg, "audio"))
2937
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2938
    else if (!strcmp(arg, "video"))
2939
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2940
    else if (!strcmp(arg, "ext"))
2941
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2942
    else {
2943
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2944
        exit(1);
2945
    }
2946
    return 0;
2947
}
2948

    
2949
static int opt_seek(const char *opt, const char *arg)
2950
{
2951
    start_time = parse_time_or_die(opt, arg, 1);
2952
    return 0;
2953
}
2954

    
2955
static int opt_duration(const char *opt, const char *arg)
2956
{
2957
    duration = parse_time_or_die(opt, arg, 1);
2958
    return 0;
2959
}
2960

    
2961
static int opt_debug(const char *opt, const char *arg)
2962
{
2963
    av_log_set_level(99);
2964
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2965
    return 0;
2966
}
2967

    
2968
static int opt_vismv(const char *opt, const char *arg)
2969
{
2970
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2971
    return 0;
2972
}
2973

    
2974
static int opt_thread_count(const char *opt, const char *arg)
2975
{
2976
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2977
#if !HAVE_THREADS
2978
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2979
#endif
2980
    return 0;
2981
}
2982

    
2983
static const OptionDef options[] = {
2984
#include "cmdutils_common_opts.h"
2985
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2986
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2987
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2988
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2989
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2990
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2991
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2992
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2993
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2994
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2995
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
2996
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2997
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2998
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2999
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3000
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3001
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3002
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3003
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3004
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3005
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3006
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3007
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3008
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3009
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3010
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3011
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3012
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3013
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3014
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3015
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3016
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3017
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3018
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3019
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3020
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3021
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3022
#if CONFIG_AVFILTER
3023
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3024
#endif
3025
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3026
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3027
    { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3028
    { NULL, },
3029
};
3030

    
3031
static void show_usage(void)
3032
{
3033
    printf("Simple media player\n");
3034
    printf("usage: ffplay [options] input_file\n");
3035
    printf("\n");
3036
}
3037

    
3038
static void show_help(void)
3039
{
3040
    av_log_set_callback(log_callback_help);
3041
    show_usage();
3042
    show_help_options(options, "Main options:\n",
3043
                      OPT_EXPERT, 0);
3044
    show_help_options(options, "\nAdvanced options:\n",
3045
                      OPT_EXPERT, OPT_EXPERT);
3046
    printf("\n");
3047
    av_opt_show2(avcodec_opts[0], NULL,
3048
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3049
    printf("\n");
3050
    av_opt_show2(avformat_opts, NULL,
3051
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3052
#if !CONFIG_AVFILTER
3053
    printf("\n");
3054
    av_opt_show2(sws_opts, NULL,
3055
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3056
#endif
3057
    printf("\nWhile playing:\n"
3058
           "q, ESC              quit\n"
3059
           "f                   toggle full screen\n"
3060
           "p, SPC              pause\n"
3061
           "a                   cycle audio channel\n"
3062
           "v                   cycle video channel\n"
3063
           "t                   cycle subtitle channel\n"
3064
           "w                   show audio waves\n"
3065
           "s                   activate frame-step mode\n"
3066
           "left/right          seek backward/forward 10 seconds\n"
3067
           "down/up             seek backward/forward 1 minute\n"
3068
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3069
           );
3070
}
3071

    
3072
static void opt_input_file(const char *filename)
3073
{
3074
    if (input_filename) {
3075
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3076
                filename, input_filename);
3077
        exit(1);
3078
    }
3079
    if (!strcmp(filename, "-"))
3080
        filename = "pipe:";
3081
    input_filename = filename;
3082
}
3083

    
3084
/* Called from the main */
3085
int main(int argc, char **argv)
3086
{
3087
    int flags;
3088

    
3089
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3090

    
3091
    /* register all codecs, demux and protocols */
3092
    avcodec_register_all();
3093
#if CONFIG_AVDEVICE
3094
    avdevice_register_all();
3095
#endif
3096
#if CONFIG_AVFILTER
3097
    avfilter_register_all();
3098
#endif
3099
    av_register_all();
3100

    
3101
    init_opts();
3102

    
3103
    show_banner();
3104

    
3105
    parse_options(argc, argv, options, opt_input_file);
3106

    
3107
    if (!input_filename) {
3108
        show_usage();
3109
        fprintf(stderr, "An input file must be specified\n");
3110
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3111
        exit(1);
3112
    }
3113

    
3114
    if (display_disable) {
3115
        video_disable = 1;
3116
    }
3117
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3118
#if !defined(__MINGW32__) && !defined(__APPLE__)
3119
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3120
#endif
3121
    if (SDL_Init (flags)) {
3122
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3123
        exit(1);
3124
    }
3125

    
3126
    if (!display_disable) {
3127
#if HAVE_SDL_VIDEO_SIZE
3128
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3129
        fs_screen_width = vi->current_w;
3130
        fs_screen_height = vi->current_h;
3131
#endif
3132
    }
3133

    
3134
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3135
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3136
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3137

    
3138
    av_init_packet(&flush_pkt);
3139
    flush_pkt.data= "FLUSH";
3140

    
3141
    cur_stream = stream_open(input_filename, file_iformat);
3142

    
3143
    event_loop();
3144

    
3145
    /* never returns */
3146

    
3147
    return 0;
3148
}