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/*
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 * ffplay : Simple Media Player based on the FFmpeg libraries
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 * 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"
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#include "libavutil/imgutils.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/avassert.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"
39
#include "libavutil/opt.h"
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#include "libavcodec/avfft.h"
41

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

    
47
#include "cmdutils.h"
48

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

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

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

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

    
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//#define DEBUG
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//#define DEBUG_SYNC
64

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

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

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

    
78
#define FRAME_SKIP_FACTOR 0.05
79

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

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

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

    
89
static int sws_flags = SWS_BICUBIC;
90

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

    
100
#define VIDEO_PICTURE_QUEUE_SIZE 2
101
#define SUBPICTURE_QUEUE_SIZE 4
102

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

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

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

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

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

    
144
    int audio_stream;
145

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

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

    
170
    enum ShowMode {
171
        SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
172
    } show_mode;
173
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
174
    int sample_array_index;
175
    int last_i_start;
176
    RDFTContext *rdft;
177
    int rdft_bits;
178
    FFTSample *rdft_data;
179
    int xpos;
180

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

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

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

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

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

    
221
static void show_help(void);
222

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

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

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

    
279
static AVPacket flush_pkt;
280

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

    
285
static SDL_Surface *screen;
286

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

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

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

    
301

    
302
    SDL_LockMutex(q->mutex);
303

    
304
    if (!q->last_pkt)
305

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

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

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

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

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

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

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

    
356
    q->abort_request = 1;
357

    
358
    SDL_CondSignal(q->cond);
359

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

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

    
369
    SDL_LockMutex(q->mutex);
370

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

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

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

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

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

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

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

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

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

    
474

    
475
#define BPP 1
476

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
737

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
965
    return 0;
966
}
967

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

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

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

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

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

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

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

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

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

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

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

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

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

    
1116
    return is->frame_timer;
1117
}
1118

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

    
1125
    SubPicture *sp, *sp2;
1126

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
1415
        vp->allocated = 0;
1416

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
1541
    }
1542
    return 0;
1543
}
1544

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
1655
    priv->frame = avcodec_alloc_frame();
1656

    
1657
    return 0;
1658
}
1659

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

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

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

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

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

    
1696
    return 0;
1697
}
1698

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

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

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

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

    
1719
    return 0;
1720
}
1721

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

    
1726
    .priv_size = sizeof(FilterPriv),
1727

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

    
1731
    .query_formats = input_query_formats,
1732

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

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

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

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

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

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

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

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

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

    
1787
#endif  /* CONFIG_AVFILTER */
1788

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

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

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

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

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

    
1836
        if (ret < 0) goto the_end;
1837

    
1838
        if (!ret)
1839
            continue;
1840

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

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

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

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

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

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

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

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

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

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

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

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

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

    
1942
    channels = is->audio_st->codec->channels;
1943

    
1944
    size = samples_size / sizeof(short);
1945
    while (size > 0) {
1946
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1947
        if (len > size)
1948
            len = size;
1949
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1950
        samples += len;
1951
        is->sample_array_index += len;
1952
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1953
            is->sample_array_index = 0;
1954
        size -= len;
1955
    }
1956
}
1957

    
1958
/* return the new audio buffer size (samples can be added or deleted
1959
   to get better sync if video or external master clock) */
1960
static int synchronize_audio(VideoState *is, short *samples,
1961
                             int samples_size1, double pts)
1962
{
1963
    int n, samples_size;
1964
    double ref_clock;
1965

    
1966
    n = 2 * is->audio_st->codec->channels;
1967
    samples_size = samples_size1;
1968

    
1969
    /* if not master, then we try to remove or add samples to correct the clock */
1970
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1971
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1972
        double diff, avg_diff;
1973
        int wanted_size, min_size, max_size, nb_samples;
1974

    
1975
        ref_clock = get_master_clock(is);
1976
        diff = get_audio_clock(is) - ref_clock;
1977

    
1978
        if (diff < AV_NOSYNC_THRESHOLD) {
1979
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1980
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1981
                /* not enough measures to have a correct estimate */
1982
                is->audio_diff_avg_count++;
1983
            } else {
1984
                /* estimate the A-V difference */
1985
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1986

    
1987
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
1988
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1989
                    nb_samples = samples_size / n;
1990

    
1991
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1992
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1993
                    if (wanted_size < min_size)
1994
                        wanted_size = min_size;
1995
                    else if (wanted_size > max_size)
1996
                        wanted_size = max_size;
1997

    
1998
                    /* add or remove samples to correction the synchro */
1999
                    if (wanted_size < samples_size) {
2000
                        /* remove samples */
2001
                        samples_size = wanted_size;
2002
                    } else if (wanted_size > samples_size) {
2003
                        uint8_t *samples_end, *q;
2004
                        int nb;
2005

    
2006
                        /* add samples */
2007
                        nb = (samples_size - wanted_size);
2008
                        samples_end = (uint8_t *)samples + samples_size - n;
2009
                        q = samples_end + n;
2010
                        while (nb > 0) {
2011
                            memcpy(q, samples_end, n);
2012
                            q += n;
2013
                            nb -= n;
2014
                        }
2015
                        samples_size = wanted_size;
2016
                    }
2017
                }
2018
#if 0
2019
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2020
                       diff, avg_diff, samples_size - samples_size1,
2021
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2022
#endif
2023
            }
2024
        } else {
2025
            /* too big difference : may be initial PTS errors, so
2026
               reset A-V filter */
2027
            is->audio_diff_avg_count = 0;
2028
            is->audio_diff_cum = 0;
2029
        }
2030
    }
2031

    
2032
    return samples_size;
2033
}
2034

    
2035
/* decode one audio frame and returns its uncompressed size */
2036
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2037
{
2038
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2039
    AVPacket *pkt = &is->audio_pkt;
2040
    AVCodecContext *dec= is->audio_st->codec;
2041
    int n, len1, data_size;
2042
    double pts;
2043

    
2044
    for(;;) {
2045
        /* NOTE: the audio packet can contain several frames */
2046
        while (pkt_temp->size > 0) {
2047
            data_size = sizeof(is->audio_buf1);
2048
            len1 = avcodec_decode_audio3(dec,
2049
                                        (int16_t *)is->audio_buf1, &data_size,
2050
                                        pkt_temp);
2051
            if (len1 < 0) {
2052
                /* if error, we skip the frame */
2053
                pkt_temp->size = 0;
2054
                break;
2055
            }
2056

    
2057
            pkt_temp->data += len1;
2058
            pkt_temp->size -= len1;
2059
            if (data_size <= 0)
2060
                continue;
2061

    
2062
            if (dec->sample_fmt != is->audio_src_fmt) {
2063
                if (is->reformat_ctx)
2064
                    av_audio_convert_free(is->reformat_ctx);
2065
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2066
                                                         dec->sample_fmt, 1, NULL, 0);
2067
                if (!is->reformat_ctx) {
2068
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2069
                        av_get_sample_fmt_name(dec->sample_fmt),
2070
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2071
                        break;
2072
                }
2073
                is->audio_src_fmt= dec->sample_fmt;
2074
            }
2075

    
2076
            if (is->reformat_ctx) {
2077
                const void *ibuf[6]= {is->audio_buf1};
2078
                void *obuf[6]= {is->audio_buf2};
2079
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2080
                int ostride[6]= {2};
2081
                int len= data_size/istride[0];
2082
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2083
                    printf("av_audio_convert() failed\n");
2084
                    break;
2085
                }
2086
                is->audio_buf= is->audio_buf2;
2087
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2088
                          remove this legacy cruft */
2089
                data_size= len*2;
2090
            }else{
2091
                is->audio_buf= is->audio_buf1;
2092
            }
2093

    
2094
            /* if no pts, then compute it */
2095
            pts = is->audio_clock;
2096
            *pts_ptr = pts;
2097
            n = 2 * dec->channels;
2098
            is->audio_clock += (double)data_size /
2099
                (double)(n * dec->sample_rate);
2100
#if defined(DEBUG_SYNC)
2101
            {
2102
                static double last_clock;
2103
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2104
                       is->audio_clock - last_clock,
2105
                       is->audio_clock, pts);
2106
                last_clock = is->audio_clock;
2107
            }
2108
#endif
2109
            return data_size;
2110
        }
2111

    
2112
        /* free the current packet */
2113
        if (pkt->data)
2114
            av_free_packet(pkt);
2115

    
2116
        if (is->paused || is->audioq.abort_request) {
2117
            return -1;
2118
        }
2119

    
2120
        /* read next packet */
2121
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2122
            return -1;
2123
        if(pkt->data == flush_pkt.data){
2124
            avcodec_flush_buffers(dec);
2125
            continue;
2126
        }
2127

    
2128
        pkt_temp->data = pkt->data;
2129
        pkt_temp->size = pkt->size;
2130

    
2131
        /* if update the audio clock with the pts */
2132
        if (pkt->pts != AV_NOPTS_VALUE) {
2133
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2134
        }
2135
    }
2136
}
2137

    
2138
/* prepare a new audio buffer */
2139
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2140
{
2141
    VideoState *is = opaque;
2142
    int audio_size, len1;
2143
    double pts;
2144

    
2145
    audio_callback_time = av_gettime();
2146

    
2147
    while (len > 0) {
2148
        if (is->audio_buf_index >= is->audio_buf_size) {
2149
           audio_size = audio_decode_frame(is, &pts);
2150
           if (audio_size < 0) {
2151
                /* if error, just output silence */
2152
               is->audio_buf = is->audio_buf1;
2153
               is->audio_buf_size = 1024;
2154
               memset(is->audio_buf, 0, is->audio_buf_size);
2155
           } else {
2156
               if (is->show_mode != SHOW_MODE_VIDEO)
2157
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2158
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2159
                                              pts);
2160
               is->audio_buf_size = audio_size;
2161
           }
2162
           is->audio_buf_index = 0;
2163
        }
2164
        len1 = is->audio_buf_size - is->audio_buf_index;
2165
        if (len1 > len)
2166
            len1 = len;
2167
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2168
        len -= len1;
2169
        stream += len1;
2170
        is->audio_buf_index += len1;
2171
    }
2172
}
2173

    
2174
/* open a given stream. Return 0 if OK */
2175
static int stream_component_open(VideoState *is, int stream_index)
2176
{
2177
    AVFormatContext *ic = is->ic;
2178
    AVCodecContext *avctx;
2179
    AVCodec *codec;
2180
    SDL_AudioSpec wanted_spec, spec;
2181

    
2182
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2183
        return -1;
2184
    avctx = ic->streams[stream_index]->codec;
2185

    
2186
    /* prepare audio output */
2187
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2188
        if (avctx->channels > 0) {
2189
            avctx->request_channels = FFMIN(2, avctx->channels);
2190
        } else {
2191
            avctx->request_channels = 2;
2192
        }
2193
    }
2194

    
2195
    codec = avcodec_find_decoder(avctx->codec_id);
2196
    avctx->debug_mv = debug_mv;
2197
    avctx->debug = debug;
2198
    avctx->workaround_bugs = workaround_bugs;
2199
    avctx->lowres = lowres;
2200
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2201
    avctx->idct_algo= idct;
2202
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2203
    avctx->skip_frame= skip_frame;
2204
    avctx->skip_idct= skip_idct;
2205
    avctx->skip_loop_filter= skip_loop_filter;
2206
    avctx->error_recognition= error_recognition;
2207
    avctx->error_concealment= error_concealment;
2208
    avctx->thread_count= thread_count;
2209

    
2210
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2211

    
2212
    if (!codec ||
2213
        avcodec_open(avctx, codec) < 0)
2214
        return -1;
2215

    
2216
    /* prepare audio output */
2217
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2218
        wanted_spec.freq = avctx->sample_rate;
2219
        wanted_spec.format = AUDIO_S16SYS;
2220
        wanted_spec.channels = avctx->channels;
2221
        wanted_spec.silence = 0;
2222
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2223
        wanted_spec.callback = sdl_audio_callback;
2224
        wanted_spec.userdata = is;
2225
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2226
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2227
            return -1;
2228
        }
2229
        is->audio_hw_buf_size = spec.size;
2230
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2231
    }
2232

    
2233
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2234
    switch(avctx->codec_type) {
2235
    case AVMEDIA_TYPE_AUDIO:
2236
        is->audio_stream = stream_index;
2237
        is->audio_st = ic->streams[stream_index];
2238
        is->audio_buf_size = 0;
2239
        is->audio_buf_index = 0;
2240

    
2241
        /* init averaging filter */
2242
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2243
        is->audio_diff_avg_count = 0;
2244
        /* since we do not have a precise anough audio fifo fullness,
2245
           we correct audio sync only if larger than this threshold */
2246
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2247

    
2248
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2249
        packet_queue_init(&is->audioq);
2250
        SDL_PauseAudio(0);
2251
        break;
2252
    case AVMEDIA_TYPE_VIDEO:
2253
        is->video_stream = stream_index;
2254
        is->video_st = ic->streams[stream_index];
2255

    
2256
//        is->video_current_pts_time = av_gettime();
2257

    
2258
        packet_queue_init(&is->videoq);
2259
        is->video_tid = SDL_CreateThread(video_thread, is);
2260
        break;
2261
    case AVMEDIA_TYPE_SUBTITLE:
2262
        is->subtitle_stream = stream_index;
2263
        is->subtitle_st = ic->streams[stream_index];
2264
        packet_queue_init(&is->subtitleq);
2265

    
2266
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2267
        break;
2268
    default:
2269
        break;
2270
    }
2271
    return 0;
2272
}
2273

    
2274
static void stream_component_close(VideoState *is, int stream_index)
2275
{
2276
    AVFormatContext *ic = is->ic;
2277
    AVCodecContext *avctx;
2278

    
2279
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2280
        return;
2281
    avctx = ic->streams[stream_index]->codec;
2282

    
2283
    switch(avctx->codec_type) {
2284
    case AVMEDIA_TYPE_AUDIO:
2285
        packet_queue_abort(&is->audioq);
2286

    
2287
        SDL_CloseAudio();
2288

    
2289
        packet_queue_end(&is->audioq);
2290
        if (is->reformat_ctx)
2291
            av_audio_convert_free(is->reformat_ctx);
2292
        is->reformat_ctx = NULL;
2293
        break;
2294
    case AVMEDIA_TYPE_VIDEO:
2295
        packet_queue_abort(&is->videoq);
2296

    
2297
        /* note: we also signal this mutex to make sure we deblock the
2298
           video thread in all cases */
2299
        SDL_LockMutex(is->pictq_mutex);
2300
        SDL_CondSignal(is->pictq_cond);
2301
        SDL_UnlockMutex(is->pictq_mutex);
2302

    
2303
        SDL_WaitThread(is->video_tid, NULL);
2304

    
2305
        packet_queue_end(&is->videoq);
2306
        break;
2307
    case AVMEDIA_TYPE_SUBTITLE:
2308
        packet_queue_abort(&is->subtitleq);
2309

    
2310
        /* note: we also signal this mutex to make sure we deblock the
2311
           video thread in all cases */
2312
        SDL_LockMutex(is->subpq_mutex);
2313
        is->subtitle_stream_changed = 1;
2314

    
2315
        SDL_CondSignal(is->subpq_cond);
2316
        SDL_UnlockMutex(is->subpq_mutex);
2317

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

    
2320
        packet_queue_end(&is->subtitleq);
2321
        break;
2322
    default:
2323
        break;
2324
    }
2325

    
2326
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2327
    avcodec_close(avctx);
2328
    switch(avctx->codec_type) {
2329
    case AVMEDIA_TYPE_AUDIO:
2330
        is->audio_st = NULL;
2331
        is->audio_stream = -1;
2332
        break;
2333
    case AVMEDIA_TYPE_VIDEO:
2334
        is->video_st = NULL;
2335
        is->video_stream = -1;
2336
        break;
2337
    case AVMEDIA_TYPE_SUBTITLE:
2338
        is->subtitle_st = NULL;
2339
        is->subtitle_stream = -1;
2340
        break;
2341
    default:
2342
        break;
2343
    }
2344
}
2345

    
2346
/* since we have only one decoding thread, we can use a global
2347
   variable instead of a thread local variable */
2348
static VideoState *global_video_state;
2349

    
2350
static int decode_interrupt_cb(void)
2351
{
2352
    return (global_video_state && global_video_state->abort_request);
2353
}
2354

    
2355
/* this thread gets the stream from the disk or the network */
2356
static int read_thread(void *arg)
2357
{
2358
    VideoState *is = arg;
2359
    AVFormatContext *ic;
2360
    int err, i, ret;
2361
    int st_index[AVMEDIA_TYPE_NB];
2362
    AVPacket pkt1, *pkt = &pkt1;
2363
    AVFormatParameters params, *ap = &params;
2364
    int eof=0;
2365
    int pkt_in_play_range = 0;
2366

    
2367
    ic = avformat_alloc_context();
2368

    
2369
    memset(st_index, -1, sizeof(st_index));
2370
    is->video_stream = -1;
2371
    is->audio_stream = -1;
2372
    is->subtitle_stream = -1;
2373

    
2374
    global_video_state = is;
2375
    avio_set_interrupt_cb(decode_interrupt_cb);
2376

    
2377
    memset(ap, 0, sizeof(*ap));
2378

    
2379
    ap->prealloced_context = 1;
2380
    ap->width = frame_width;
2381
    ap->height= frame_height;
2382
    ap->time_base= (AVRational){1, 25};
2383
    ap->pix_fmt = frame_pix_fmt;
2384

    
2385
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2386

    
2387
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2388
    if (err < 0) {
2389
        print_error(is->filename, err);
2390
        ret = -1;
2391
        goto fail;
2392
    }
2393
    is->ic = ic;
2394

    
2395
    if(genpts)
2396
        ic->flags |= AVFMT_FLAG_GENPTS;
2397

    
2398
    err = av_find_stream_info(ic);
2399
    if (err < 0) {
2400
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2401
        ret = -1;
2402
        goto fail;
2403
    }
2404
    if(ic->pb)
2405
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2406

    
2407
    if(seek_by_bytes<0)
2408
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2409

    
2410
    /* if seeking requested, we execute it */
2411
    if (start_time != AV_NOPTS_VALUE) {
2412
        int64_t timestamp;
2413

    
2414
        timestamp = start_time;
2415
        /* add the stream start time */
2416
        if (ic->start_time != AV_NOPTS_VALUE)
2417
            timestamp += ic->start_time;
2418
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2419
        if (ret < 0) {
2420
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2421
                    is->filename, (double)timestamp / AV_TIME_BASE);
2422
        }
2423
    }
2424

    
2425
    for (i = 0; i < ic->nb_streams; i++)
2426
        ic->streams[i]->discard = AVDISCARD_ALL;
2427
    if (!video_disable)
2428
        st_index[AVMEDIA_TYPE_VIDEO] =
2429
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2430
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2431
    if (!audio_disable)
2432
        st_index[AVMEDIA_TYPE_AUDIO] =
2433
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2434
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2435
                                st_index[AVMEDIA_TYPE_VIDEO],
2436
                                NULL, 0);
2437
    if (!video_disable)
2438
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2439
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2440
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2441
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2442
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2443
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2444
                                NULL, 0);
2445
    if (show_status) {
2446
        av_dump_format(ic, 0, is->filename, 0);
2447
    }
2448

    
2449
    is->show_mode = show_mode;
2450

    
2451
    /* open the streams */
2452
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2453
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2454
    }
2455

    
2456
    ret=-1;
2457
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2458
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2459
    }
2460
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2461
    if (is->show_mode == SHOW_MODE_NONE)
2462
        is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2463

    
2464
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2465
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2466
    }
2467

    
2468
    if (is->video_stream < 0 && is->audio_stream < 0) {
2469
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2470
        ret = -1;
2471
        goto fail;
2472
    }
2473

    
2474
    for(;;) {
2475
        if (is->abort_request)
2476
            break;
2477
        if (is->paused != is->last_paused) {
2478
            is->last_paused = is->paused;
2479
            if (is->paused)
2480
                is->read_pause_return= av_read_pause(ic);
2481
            else
2482
                av_read_play(ic);
2483
        }
2484
#if CONFIG_RTSP_DEMUXER
2485
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2486
            /* wait 10 ms to avoid trying to get another packet */
2487
            /* XXX: horrible */
2488
            SDL_Delay(10);
2489
            continue;
2490
        }
2491
#endif
2492
        if (is->seek_req) {
2493
            int64_t seek_target= is->seek_pos;
2494
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2495
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2496
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2497
//      of the seek_pos/seek_rel variables
2498

    
2499
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2500
            if (ret < 0) {
2501
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2502
            }else{
2503
                if (is->audio_stream >= 0) {
2504
                    packet_queue_flush(&is->audioq);
2505
                    packet_queue_put(&is->audioq, &flush_pkt);
2506
                }
2507
                if (is->subtitle_stream >= 0) {
2508
                    packet_queue_flush(&is->subtitleq);
2509
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2510
                }
2511
                if (is->video_stream >= 0) {
2512
                    packet_queue_flush(&is->videoq);
2513
                    packet_queue_put(&is->videoq, &flush_pkt);
2514
                }
2515
            }
2516
            is->seek_req = 0;
2517
            eof= 0;
2518
        }
2519

    
2520
        /* if the queue are full, no need to read more */
2521
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2522
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2523
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2524
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2525
            /* wait 10 ms */
2526
            SDL_Delay(10);
2527
            continue;
2528
        }
2529
        if(eof) {
2530
            if(is->video_stream >= 0){
2531
                av_init_packet(pkt);
2532
                pkt->data=NULL;
2533
                pkt->size=0;
2534
                pkt->stream_index= is->video_stream;
2535
                packet_queue_put(&is->videoq, pkt);
2536
            }
2537
            SDL_Delay(10);
2538
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2539
                if(loop!=1 && (!loop || --loop)){
2540
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2541
                }else if(autoexit){
2542
                    ret=AVERROR_EOF;
2543
                    goto fail;
2544
                }
2545
            }
2546
            eof=0;
2547
            continue;
2548
        }
2549
        ret = av_read_frame(ic, pkt);
2550
        if (ret < 0) {
2551
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2552
                eof=1;
2553
            if (ic->pb && ic->pb->error)
2554
                break;
2555
            SDL_Delay(100); /* wait for user event */
2556
            continue;
2557
        }
2558
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2559
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2560
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2561
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2562
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2563
                <= ((double)duration/1000000);
2564
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2565
            packet_queue_put(&is->audioq, pkt);
2566
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2567
            packet_queue_put(&is->videoq, pkt);
2568
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2569
            packet_queue_put(&is->subtitleq, pkt);
2570
        } else {
2571
            av_free_packet(pkt);
2572
        }
2573
    }
2574
    /* wait until the end */
2575
    while (!is->abort_request) {
2576
        SDL_Delay(100);
2577
    }
2578

    
2579
    ret = 0;
2580
 fail:
2581
    /* disable interrupting */
2582
    global_video_state = NULL;
2583

    
2584
    /* close each stream */
2585
    if (is->audio_stream >= 0)
2586
        stream_component_close(is, is->audio_stream);
2587
    if (is->video_stream >= 0)
2588
        stream_component_close(is, is->video_stream);
2589
    if (is->subtitle_stream >= 0)
2590
        stream_component_close(is, is->subtitle_stream);
2591
    if (is->ic) {
2592
        av_close_input_file(is->ic);
2593
        is->ic = NULL; /* safety */
2594
    }
2595
    avio_set_interrupt_cb(NULL);
2596

    
2597
    if (ret != 0) {
2598
        SDL_Event event;
2599

    
2600
        event.type = FF_QUIT_EVENT;
2601
        event.user.data1 = is;
2602
        SDL_PushEvent(&event);
2603
    }
2604
    return 0;
2605
}
2606

    
2607
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2608
{
2609
    VideoState *is;
2610

    
2611
    is = av_mallocz(sizeof(VideoState));
2612
    if (!is)
2613
        return NULL;
2614
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2615
    is->iformat = iformat;
2616
    is->ytop = 0;
2617
    is->xleft = 0;
2618

    
2619
    /* start video display */
2620
    is->pictq_mutex = SDL_CreateMutex();
2621
    is->pictq_cond = SDL_CreateCond();
2622

    
2623
    is->subpq_mutex = SDL_CreateMutex();
2624
    is->subpq_cond = SDL_CreateCond();
2625

    
2626
    is->av_sync_type = av_sync_type;
2627
    is->read_tid = SDL_CreateThread(read_thread, is);
2628
    if (!is->read_tid) {
2629
        av_free(is);
2630
        return NULL;
2631
    }
2632
    return is;
2633
}
2634

    
2635
static void stream_cycle_channel(VideoState *is, int codec_type)
2636
{
2637
    AVFormatContext *ic = is->ic;
2638
    int start_index, stream_index;
2639
    AVStream *st;
2640

    
2641
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2642
        start_index = is->video_stream;
2643
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2644
        start_index = is->audio_stream;
2645
    else
2646
        start_index = is->subtitle_stream;
2647
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2648
        return;
2649
    stream_index = start_index;
2650
    for(;;) {
2651
        if (++stream_index >= is->ic->nb_streams)
2652
        {
2653
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2654
            {
2655
                stream_index = -1;
2656
                goto the_end;
2657
            } else
2658
                stream_index = 0;
2659
        }
2660
        if (stream_index == start_index)
2661
            return;
2662
        st = ic->streams[stream_index];
2663
        if (st->codec->codec_type == codec_type) {
2664
            /* check that parameters are OK */
2665
            switch(codec_type) {
2666
            case AVMEDIA_TYPE_AUDIO:
2667
                if (st->codec->sample_rate != 0 &&
2668
                    st->codec->channels != 0)
2669
                    goto the_end;
2670
                break;
2671
            case AVMEDIA_TYPE_VIDEO:
2672
            case AVMEDIA_TYPE_SUBTITLE:
2673
                goto the_end;
2674
            default:
2675
                break;
2676
            }
2677
        }
2678
    }
2679
 the_end:
2680
    stream_component_close(is, start_index);
2681
    stream_component_open(is, stream_index);
2682
}
2683

    
2684

    
2685
static void toggle_full_screen(void)
2686
{
2687
    is_full_screen = !is_full_screen;
2688
    if (!fs_screen_width) {
2689
        /* use default SDL method */
2690
//        SDL_WM_ToggleFullScreen(screen);
2691
    }
2692
    video_open(cur_stream);
2693
}
2694

    
2695
static void toggle_pause(void)
2696
{
2697
    if (cur_stream)
2698
        stream_toggle_pause(cur_stream);
2699
    step = 0;
2700
}
2701

    
2702
static void step_to_next_frame(void)
2703
{
2704
    if (cur_stream) {
2705
        /* if the stream is paused unpause it, then step */
2706
        if (cur_stream->paused)
2707
            stream_toggle_pause(cur_stream);
2708
    }
2709
    step = 1;
2710
}
2711

    
2712
static void toggle_audio_display(void)
2713
{
2714
    if (cur_stream) {
2715
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2716
        cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2717
        fill_rectangle(screen,
2718
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2719
                    bgcolor);
2720
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2721
    }
2722
}
2723

    
2724
/* handle an event sent by the GUI */
2725
static void event_loop(void)
2726
{
2727
    SDL_Event event;
2728
    double incr, pos, frac;
2729

    
2730
    for(;;) {
2731
        double x;
2732
        SDL_WaitEvent(&event);
2733
        switch(event.type) {
2734
        case SDL_KEYDOWN:
2735
            if (exit_on_keydown) {
2736
                do_exit();
2737
                break;
2738
            }
2739
            switch(event.key.keysym.sym) {
2740
            case SDLK_ESCAPE:
2741
            case SDLK_q:
2742
                do_exit();
2743
                break;
2744
            case SDLK_f:
2745
                toggle_full_screen();
2746
                break;
2747
            case SDLK_p:
2748
            case SDLK_SPACE:
2749
                toggle_pause();
2750
                break;
2751
            case SDLK_s: //S: Step to next frame
2752
                step_to_next_frame();
2753
                break;
2754
            case SDLK_a:
2755
                if (cur_stream)
2756
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2757
                break;
2758
            case SDLK_v:
2759
                if (cur_stream)
2760
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2761
                break;
2762
            case SDLK_t:
2763
                if (cur_stream)
2764
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2765
                break;
2766
            case SDLK_w:
2767
                toggle_audio_display();
2768
                break;
2769
            case SDLK_LEFT:
2770
                incr = -10.0;
2771
                goto do_seek;
2772
            case SDLK_RIGHT:
2773
                incr = 10.0;
2774
                goto do_seek;
2775
            case SDLK_UP:
2776
                incr = 60.0;
2777
                goto do_seek;
2778
            case SDLK_DOWN:
2779
                incr = -60.0;
2780
            do_seek:
2781
                if (cur_stream) {
2782
                    if (seek_by_bytes) {
2783
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2784
                            pos= cur_stream->video_current_pos;
2785
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2786
                            pos= cur_stream->audio_pkt.pos;
2787
                        }else
2788
                            pos = avio_tell(cur_stream->ic->pb);
2789
                        if (cur_stream->ic->bit_rate)
2790
                            incr *= cur_stream->ic->bit_rate / 8.0;
2791
                        else
2792
                            incr *= 180000.0;
2793
                        pos += incr;
2794
                        stream_seek(cur_stream, pos, incr, 1);
2795
                    } else {
2796
                        pos = get_master_clock(cur_stream);
2797
                        pos += incr;
2798
                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2799
                    }
2800
                }
2801
                break;
2802
            default:
2803
                break;
2804
            }
2805
            break;
2806
        case SDL_MOUSEBUTTONDOWN:
2807
            if (exit_on_mousedown) {
2808
                do_exit();
2809
                break;
2810
            }
2811
        case SDL_MOUSEMOTION:
2812
            if(event.type ==SDL_MOUSEBUTTONDOWN){
2813
                x= event.button.x;
2814
            }else{
2815
                if(event.motion.state != SDL_PRESSED)
2816
                    break;
2817
                x= event.motion.x;
2818
            }
2819
            if (cur_stream) {
2820
                if(seek_by_bytes || cur_stream->ic->duration<=0){
2821
                    uint64_t size=  avio_size(cur_stream->ic->pb);
2822
                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2823
                }else{
2824
                    int64_t ts;
2825
                    int ns, hh, mm, ss;
2826
                    int tns, thh, tmm, tss;
2827
                    tns = cur_stream->ic->duration/1000000LL;
2828
                    thh = tns/3600;
2829
                    tmm = (tns%3600)/60;
2830
                    tss = (tns%60);
2831
                    frac = x/cur_stream->width;
2832
                    ns = frac*tns;
2833
                    hh = ns/3600;
2834
                    mm = (ns%3600)/60;
2835
                    ss = (ns%60);
2836
                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2837
                            hh, mm, ss, thh, tmm, tss);
2838
                    ts = frac*cur_stream->ic->duration;
2839
                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2840
                        ts += cur_stream->ic->start_time;
2841
                    stream_seek(cur_stream, ts, 0, 0);
2842
                }
2843
            }
2844
            break;
2845
        case SDL_VIDEORESIZE:
2846
            if (cur_stream) {
2847
                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2848
                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2849
                screen_width = cur_stream->width = event.resize.w;
2850
                screen_height= cur_stream->height= event.resize.h;
2851
            }
2852
            break;
2853
        case SDL_QUIT:
2854
        case FF_QUIT_EVENT:
2855
            do_exit();
2856
            break;
2857
        case FF_ALLOC_EVENT:
2858
            video_open(event.user.data1);
2859
            alloc_picture(event.user.data1);
2860
            break;
2861
        case FF_REFRESH_EVENT:
2862
            video_refresh(event.user.data1);
2863
            cur_stream->refresh=0;
2864
            break;
2865
        default:
2866
            break;
2867
        }
2868
    }
2869
}
2870

    
2871
static void opt_frame_size(const char *arg)
2872
{
2873
    if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2874
        fprintf(stderr, "Incorrect frame size\n");
2875
        exit(1);
2876
    }
2877
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2878
        fprintf(stderr, "Frame size must be a multiple of 2\n");
2879
        exit(1);
2880
    }
2881
}
2882

    
2883
static int opt_width(const char *opt, const char *arg)
2884
{
2885
    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2886
    return 0;
2887
}
2888

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

    
2895
static void opt_format(const char *arg)
2896
{
2897
    file_iformat = av_find_input_format(arg);
2898
    if (!file_iformat) {
2899
        fprintf(stderr, "Unknown input format: %s\n", arg);
2900
        exit(1);
2901
    }
2902
}
2903

    
2904
static void opt_frame_pix_fmt(const char *arg)
2905
{
2906
    frame_pix_fmt = av_get_pix_fmt(arg);
2907
}
2908

    
2909
static int opt_sync(const char *opt, const char *arg)
2910
{
2911
    if (!strcmp(arg, "audio"))
2912
        av_sync_type = AV_SYNC_AUDIO_MASTER;
2913
    else if (!strcmp(arg, "video"))
2914
        av_sync_type = AV_SYNC_VIDEO_MASTER;
2915
    else if (!strcmp(arg, "ext"))
2916
        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2917
    else {
2918
        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2919
        exit(1);
2920
    }
2921
    return 0;
2922
}
2923

    
2924
static int opt_seek(const char *opt, const char *arg)
2925
{
2926
    start_time = parse_time_or_die(opt, arg, 1);
2927
    return 0;
2928
}
2929

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

    
2936
static int opt_debug(const char *opt, const char *arg)
2937
{
2938
    av_log_set_level(99);
2939
    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2940
    return 0;
2941
}
2942

    
2943
static int opt_vismv(const char *opt, const char *arg)
2944
{
2945
    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2946
    return 0;
2947
}
2948

    
2949
static int opt_thread_count(const char *opt, const char *arg)
2950
{
2951
    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2952
#if !HAVE_THREADS
2953
    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2954
#endif
2955
    return 0;
2956
}
2957

    
2958
static int opt_show_mode(const char *opt, const char *arg)
2959
{
2960
    show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2961
                !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2962
                !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT  :
2963
                parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2964
    return 0;
2965
}
2966

    
2967
static const OptionDef options[] = {
2968
#include "cmdutils_common_opts.h"
2969
    { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2970
    { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2971
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2972
    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2973
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2974
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2975
    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2976
    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2977
    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2978
    { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2979
    { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
2980
    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2981
    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2982
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2983
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2984
    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2985
    { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2986
    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2987
    { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2988
    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2989
    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2990
    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2991
    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2992
    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2993
    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2994
    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2995
    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
2996
    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
2997
    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
2998
    { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2999
    { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3000
    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3001
    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3002
    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3003
    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3004
    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3005
    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3006
#if CONFIG_AVFILTER
3007
    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3008
#endif
3009
    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3010
    { "showmode", HAS_ARG | OPT_FUNC2, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3011
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3012
    { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
3013
    { NULL, },
3014
};
3015

    
3016
static void show_usage(void)
3017
{
3018
    printf("Simple media player\n");
3019
    printf("usage: ffplay [options] input_file\n");
3020
    printf("\n");
3021
}
3022

    
3023
static void show_help(void)
3024
{
3025
    av_log_set_callback(log_callback_help);
3026
    show_usage();
3027
    show_help_options(options, "Main options:\n",
3028
                      OPT_EXPERT, 0);
3029
    show_help_options(options, "\nAdvanced options:\n",
3030
                      OPT_EXPERT, OPT_EXPERT);
3031
    printf("\n");
3032
    av_opt_show2(avcodec_opts[0], NULL,
3033
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3034
    printf("\n");
3035
    av_opt_show2(avformat_opts, NULL,
3036
                 AV_OPT_FLAG_DECODING_PARAM, 0);
3037
#if !CONFIG_AVFILTER
3038
    printf("\n");
3039
    av_opt_show2(sws_opts, NULL,
3040
                 AV_OPT_FLAG_ENCODING_PARAM, 0);
3041
#endif
3042
    printf("\nWhile playing:\n"
3043
           "q, ESC              quit\n"
3044
           "f                   toggle full screen\n"
3045
           "p, SPC              pause\n"
3046
           "a                   cycle audio channel\n"
3047
           "v                   cycle video channel\n"
3048
           "t                   cycle subtitle channel\n"
3049
           "w                   show audio waves\n"
3050
           "s                   activate frame-step mode\n"
3051
           "left/right          seek backward/forward 10 seconds\n"
3052
           "down/up             seek backward/forward 1 minute\n"
3053
           "mouse click         seek to percentage in file corresponding to fraction of width\n"
3054
           );
3055
}
3056

    
3057
static void opt_input_file(const char *filename)
3058
{
3059
    if (input_filename) {
3060
        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3061
                filename, input_filename);
3062
        exit(1);
3063
    }
3064
    if (!strcmp(filename, "-"))
3065
        filename = "pipe:";
3066
    input_filename = filename;
3067
}
3068

    
3069
/* Called from the main */
3070
int main(int argc, char **argv)
3071
{
3072
    int flags;
3073

    
3074
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3075

    
3076
    /* register all codecs, demux and protocols */
3077
    avcodec_register_all();
3078
#if CONFIG_AVDEVICE
3079
    avdevice_register_all();
3080
#endif
3081
#if CONFIG_AVFILTER
3082
    avfilter_register_all();
3083
#endif
3084
    av_register_all();
3085

    
3086
    init_opts();
3087

    
3088
    show_banner();
3089

    
3090
    parse_options(argc, argv, options, opt_input_file);
3091

    
3092
    if (!input_filename) {
3093
        show_usage();
3094
        fprintf(stderr, "An input file must be specified\n");
3095
        fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3096
        exit(1);
3097
    }
3098

    
3099
    if (display_disable) {
3100
        video_disable = 1;
3101
    }
3102
    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3103
#if !defined(__MINGW32__) && !defined(__APPLE__)
3104
    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3105
#endif
3106
    if (SDL_Init (flags)) {
3107
        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3108
        exit(1);
3109
    }
3110

    
3111
    if (!display_disable) {
3112
#if HAVE_SDL_VIDEO_SIZE
3113
        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3114
        fs_screen_width = vi->current_w;
3115
        fs_screen_height = vi->current_h;
3116
#endif
3117
    }
3118

    
3119
    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3120
    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3121
    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3122

    
3123
    av_init_packet(&flush_pkt);
3124
    flush_pkt.data= "FLUSH";
3125

    
3126
    cur_stream = stream_open(input_filename, file_iformat);
3127

    
3128
    event_loop();
3129

    
3130
    /* never returns */
3131

    
3132
    return 0;
3133
}