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1
/*
2
 * FFmpeg main 
3
 * Copyright (c) 2000,2001 Gerard Lantau
4
 *
5
 * This program is free software; you can redistribute it and/or modify
6
 * it under the terms of the GNU General Public License as published by
7
 * the Free Software Foundation; either version 2 of the License, or
8
 * (at your option) any later version.
9
 *
10
 * This program is distributed in the hope that it will be useful,
11
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
 * GNU General Public License for more details.
14
 *
15
 * You should have received a copy of the GNU General Public License
16
 * along with this program; if not, write to the Free Software
17
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18
 */
19
#define HAVE_AV_CONFIG_H
20
#include "avformat.h"
21

    
22
#ifndef CONFIG_WIN32
23
#include <unistd.h>
24
#include <fcntl.h>
25
#include <sys/ioctl.h>
26
#include <sys/time.h>
27
#include <termios.h>
28
#include <sys/time.h>
29
#include <sys/resource.h>
30
#include <ctype.h>
31
#endif
32

    
33

    
34
#define MAXINT64 INT64_C(0x7fffffffffffffff)
35

    
36
typedef struct {
37
    const char *name;
38
    int flags;
39
#define HAS_ARG    0x0001
40
#define OPT_BOOL   0x0002
41
#define OPT_EXPERT 0x0004
42
#define OPT_STRING 0x0008
43
    union {
44
        void (*func_arg)();
45
        int *int_arg;
46
        char **str_arg;
47
    } u;
48
    const char *help;
49
    const char *argname;
50
} OptionDef;
51

    
52
/* select an input stream for an output stream */
53
typedef struct AVStreamMap {
54
    int file_index;
55
    int stream_index;
56
} AVStreamMap;
57

    
58
extern const OptionDef options[];
59

    
60
void show_help(void);
61

    
62
#define MAX_FILES 20
63

    
64
static AVFormatContext *input_files[MAX_FILES];
65
static int nb_input_files = 0;
66

    
67
static AVFormatContext *output_files[MAX_FILES];
68
static int nb_output_files = 0;
69

    
70
static AVStreamMap stream_maps[MAX_FILES];
71
static int nb_stream_maps;
72

    
73
static AVFormat *file_format;
74
static int frame_width  = 160;
75
static int frame_height = 128;
76
static int frame_rate = 25 * FRAME_RATE_BASE;
77
static int video_bit_rate = 200000;
78
static int video_qscale = 0;
79
static int video_disable = 0;
80
static int video_codec_id = CODEC_ID_NONE;
81
static int same_quality = 0;
82
static int do_deinterlace = 0;
83

    
84
static int gop_size = 12;
85
static int intra_only = 0;
86
static int audio_sample_rate = 44100;
87
static int audio_bit_rate = 64000;
88
static int audio_disable = 0;
89
static int audio_channels = 1;
90
static int audio_codec_id = CODEC_ID_NONE;
91

    
92
static INT64 recording_time = 0;
93
static int file_overwrite = 0;
94
static char *str_title = NULL;
95
static char *str_author = NULL;
96
static char *str_copyright = NULL;
97
static char *str_comment = NULL;
98
static int do_benchmark = 0;
99
static int do_hex_dump = 0;
100
static int do_play = 0;
101
static int do_psnr = 0;
102

    
103
typedef struct AVOutputStream {
104
    int file_index;          /* file index */
105
    int index;               /* stream index in the output file */
106
    int source_index;        /* AVInputStream index */
107
    AVStream *st;            /* stream in the output file */
108
    int encoding_needed;   /* true if encoding needed for this stream */
109

    
110
    int fifo_packet_rptr;    /* read index in the corresponding
111
                                avinputstream packet fifo */
112
    /* video only */
113
    AVPicture pict_tmp;         /* temporary image for resizing */
114
    int video_resample;
115
    ImgReSampleContext *img_resample_ctx; /* for image resampling */
116
    
117
    /* audio only */
118
    int audio_resample;
119
    ReSampleContext *resample; /* for audio resampling */
120
    FifoBuffer fifo;     /* for compression: one audio fifo per codec */
121
} AVOutputStream;
122

    
123
typedef struct AVInputStream {
124
    int file_index;
125
    int index;
126
    AVStream *st;
127
    int discard;             /* true if stream data should be discarded */
128
    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
129
    INT64 pts;               /* current pts */
130
    int frame_number;        /* current frame */
131
    INT64 sample_index;      /* current sample */
132
} AVInputStream;
133

    
134
typedef struct AVInputFile {
135
    int eof_reached;      /* true if eof reached */
136
    int ist_index;        /* index of first stream in ist_table */
137
    int buffer_size;      /* current total buffer size */
138
    int buffer_size_max;  /* buffer size at which we consider we can stop
139
                             buffering */
140
} AVInputFile;
141

    
142
#ifndef CONFIG_WIN32
143

    
144
/* init terminal so that we can grab keys */
145
static struct termios oldtty;
146

    
147
static void term_exit(void)
148
{
149
    tcsetattr (0, TCSANOW, &oldtty);
150
}
151

    
152
static void term_init(void)
153
{
154
    struct termios tty;
155

    
156
    tcgetattr (0, &tty);
157
    oldtty = tty;
158

    
159
    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
160
                          |INLCR|IGNCR|ICRNL|IXON);
161
    tty.c_oflag |= OPOST;
162
    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
163
    tty.c_cflag &= ~(CSIZE|PARENB);
164
    tty.c_cflag |= CS8;
165
    tty.c_cc[VMIN] = 1;
166
    tty.c_cc[VTIME] = 0;
167
    
168
    tcsetattr (0, TCSANOW, &tty);
169

    
170
    atexit(term_exit);
171
}
172

    
173
/* read a key without blocking */
174
static int read_key(void)
175
{
176
    struct timeval tv;
177
    int n;
178
    unsigned char ch;
179
    fd_set rfds;
180

    
181
    FD_ZERO(&rfds);
182
    FD_SET(0, &rfds);
183
    tv.tv_sec = 0;
184
    tv.tv_usec = 0;
185
    n = select(1, &rfds, NULL, NULL, &tv);
186
    if (n > 0) {
187
        if (read(0, &ch, 1) == 1)
188
            return ch;
189
    }
190
    return -1;
191
}
192

    
193
#else
194

    
195
/* no interactive support */
196
static void term_exit(void)
197
{
198
}
199

    
200
static void term_init(void)
201
{
202
}
203

    
204
static int read_key(void)
205
{
206
    return -1;
207
}
208

    
209
#endif
210

    
211
int read_ffserver_streams(AVFormatContext *s, const char *filename)
212
{
213
    int i;
214
    AVFormatContext *ic;
215

    
216
    ic = av_open_input_file(filename, NULL, FFM_PACKET_SIZE, NULL);
217
    if (!ic)
218
        return -EIO;
219
    /* copy stream format */
220
    s->nb_streams = ic->nb_streams;
221
    for(i=0;i<ic->nb_streams;i++) {
222
        AVStream *st;
223
        st = av_mallocz(sizeof(AVFormatContext));
224
        memcpy(st, ic->streams[i], sizeof(AVStream));
225
        s->streams[i] = st;
226
    }
227

    
228
    av_close_input_file(ic);
229
    return 0;
230
}
231

    
232
#define MAX_AUDIO_PACKET_SIZE 16384
233

    
234
static void do_audio_out(AVFormatContext *s, 
235
                         AVOutputStream *ost, 
236
                         AVInputStream *ist,
237
                         unsigned char *buf, int size)
238
{
239
    UINT8 *buftmp;
240
    UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
241
    UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
242
    int size_out, frame_bytes, ret;
243
    AVCodecContext *enc;
244

    
245
    enc = &ost->st->codec;
246

    
247
    if (ost->audio_resample) {
248
        buftmp = audio_buf;
249
        size_out = audio_resample(ost->resample, 
250
                                  (short *)buftmp, (short *)buf,
251
                                  size / (ist->st->codec.channels * 2));
252
        size_out = size_out * enc->channels * 2;
253
    } else {
254
        buftmp = buf;
255
        size_out = size;
256
    }
257

    
258
    /* now encode as many frames as possible */
259
    if (enc->frame_size > 1) {
260
        /* output resampled raw samples */
261
        fifo_write(&ost->fifo, buftmp, size_out, 
262
                   &ost->fifo.wptr);
263

    
264
        frame_bytes = enc->frame_size * 2 * enc->channels;
265
        
266
        while (fifo_read(&ost->fifo, audio_buf, frame_bytes, 
267
                     &ost->fifo.rptr) == 0) {
268
            ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out), 
269
                                       (short *)audio_buf);
270
            s->format->write_packet(s, ost->index, audio_out, ret);
271
        }
272
    } else {
273
        /* output a pcm frame */
274
        /* XXX: change encoding codec API to avoid this ? */
275
        switch(enc->codec->id) {
276
        case CODEC_ID_PCM_S16LE:
277
        case CODEC_ID_PCM_S16BE:
278
        case CODEC_ID_PCM_U16LE:
279
        case CODEC_ID_PCM_U16BE:
280
            break;
281
        default:
282
            size_out = size_out >> 1;
283
            break;
284
        }
285
        ret = avcodec_encode_audio(enc, audio_out, size_out, 
286
                                   (short *)buftmp);
287
        s->format->write_packet(s, ost->index, audio_out, ret);
288
    }
289
}
290

    
291
/* write a picture to a raw mux */
292
static void write_picture(AVFormatContext *s, int index, AVPicture *picture, 
293
                          int pix_fmt, int w, int h)
294
{
295
    UINT8 *buf, *src, *dest;
296
    int size, j, i;
297

    
298
    size = avpicture_get_size(pix_fmt, w, h);
299
    buf = malloc(size);
300
    if (!buf)
301
        return;
302

    
303
    /* XXX: not efficient, should add test if we can take
304
       directly the AVPicture */
305
    switch(pix_fmt) {
306
    case PIX_FMT_YUV420P:
307
        dest = buf;
308
        for(i=0;i<3;i++) {
309
            if (i == 1) {
310
                w >>= 1;
311
                h >>= 1;
312
            }
313
            src = picture->data[i];
314
            for(j=0;j<h;j++) {
315
                memcpy(dest, src, w);
316
                dest += w;
317
                src += picture->linesize[i];
318
            }
319
        }
320
        break;
321
    case PIX_FMT_YUV422P:
322
        size = (w * h) * 2; 
323
        buf = malloc(size);
324
        dest = buf;
325
        for(i=0;i<3;i++) {
326
            if (i == 1) {
327
                w >>= 1;
328
            }
329
            src = picture->data[i];
330
            for(j=0;j<h;j++) {
331
                memcpy(dest, src, w);
332
                dest += w;
333
                src += picture->linesize[i];
334
            }
335
        }
336
        break;
337
    case PIX_FMT_YUV444P:
338
        size = (w * h) * 3; 
339
        buf = malloc(size);
340
        dest = buf;
341
        for(i=0;i<3;i++) {
342
            src = picture->data[i];
343
            for(j=0;j<h;j++) {
344
                memcpy(dest, src, w);
345
                dest += w;
346
                src += picture->linesize[i];
347
            }
348
        }
349
        break;
350
    case PIX_FMT_YUV422:
351
        size = (w * h) * 2; 
352
        buf = malloc(size);
353
        dest = buf;
354
        src = picture->data[0];
355
        for(j=0;j<h;j++) {
356
            memcpy(dest, src, w * 2);
357
            dest += w * 2;
358
            src += picture->linesize[0];
359
        }
360
        break;
361
    case PIX_FMT_RGB24:
362
    case PIX_FMT_BGR24:
363
        size = (w * h) * 3; 
364
        buf = malloc(size);
365
        dest = buf;
366
        src = picture->data[0];
367
        for(j=0;j<h;j++) {
368
            memcpy(dest, src, w * 3);
369
            dest += w * 3;
370
            src += picture->linesize[0];
371
        }
372
        break;
373
    default:
374
        return;
375
    }
376
    s->format->write_packet(s, index, buf, size);
377
    free(buf);
378
}
379

    
380

    
381
static void do_video_out(AVFormatContext *s, 
382
                         AVOutputStream *ost, 
383
                         AVInputStream *ist,
384
                         AVPicture *picture1)
385
{
386
    int n1, n2, nb, i, ret, frame_number;
387
    AVPicture *picture, *picture2, *pict;
388
    AVPicture picture_tmp1, picture_tmp2;
389
    UINT8 video_buffer[1024*1024];
390
    UINT8 *buf = NULL, *buf1 = NULL;
391
    AVCodecContext *enc, *dec;
392

    
393
    enc = &ost->st->codec;
394
    dec = &ist->st->codec;
395

    
396
    frame_number = ist->frame_number;
397
    /* first drop frame if needed */
398
    n1 = ((INT64)frame_number * enc->frame_rate) / dec->frame_rate;
399
    n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec->frame_rate;
400
    nb = n2 - n1;
401
    if (nb <= 0)
402
        return;
403
    
404
    /* deinterlace : must be done before any resize */
405
    if (do_deinterlace) {
406
        int size;
407

    
408
        /* create temporary picture */
409
        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
410
        buf1 = malloc(size);
411
        if (!buf1)
412
            return;
413
        
414
        picture2 = &picture_tmp2;
415
        avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
416

    
417
        if (avpicture_deinterlace(picture2, picture1, 
418
                                  dec->pix_fmt, dec->width, dec->height) < 0) {
419
            /* if error, do not deinterlace */
420
            free(buf1);
421
            buf1 = NULL;
422
            picture2 = picture1;
423
        }
424
    } else {
425
        picture2 = picture1;
426
    }
427

    
428
    /* convert pixel format if needed */
429
    if (enc->pix_fmt != dec->pix_fmt) {
430
        int size;
431

    
432
        /* create temporary picture */
433
        size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
434
        buf = malloc(size);
435
        if (!buf)
436
            return;
437
        pict = &picture_tmp1;
438
        avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
439
        
440
        if (img_convert(pict, enc->pix_fmt, 
441
                        picture2, dec->pix_fmt, 
442
                        dec->width, dec->height) < 0) {
443
            fprintf(stderr, "pixel format conversion not handled\n");
444
            goto the_end;
445
        }
446
    } else {
447
        pict = picture2;
448
    }
449

    
450
    /* XXX: resampling could be done before raw format convertion in
451
       some cases to go faster */
452
    /* XXX: only works for YUV420P */
453
    if (ost->video_resample) {
454
        picture = &ost->pict_tmp;
455
        img_resample(ost->img_resample_ctx, picture, pict);
456
    } else {
457
        picture = pict;
458
    }
459

    
460
    /* duplicates frame if needed */
461
    /* XXX: pb because no interleaving */
462
    for(i=0;i<nb;i++) {
463
        if (enc->codec_id != CODEC_ID_RAWVIDEO) {
464
            /* handles sameq here. This is not correct because it may
465
               not be a global option */
466
            if (same_quality) {
467
                enc->quality = dec->quality;
468
            }
469
            ret = avcodec_encode_video(enc, 
470
                                       video_buffer, sizeof(video_buffer), 
471
                                       picture);
472
            s->format->write_packet(s, ost->index, video_buffer, ret);
473
        } else {
474
            write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
475
        }
476
    }
477
    the_end:
478
    if (buf)
479
        free(buf);
480
    if (buf1)
481
        free(buf1);
482
}
483

    
484
static void hex_dump(UINT8 *buf, int size)
485
{
486
    int len, i, j, c;
487

    
488
    for(i=0;i<size;i+=16) {
489
        len = size - i;
490
        if (len > 16)
491
            len = 16;
492
        printf("%08x ", i);
493
        for(j=0;j<16;j++) {
494
            if (j < len)
495
                printf(" %02x", buf[i+j]);
496
            else
497
                printf("   ");
498
        }
499
        printf(" ");
500
        for(j=0;j<len;j++) {
501
            c = buf[i+j];
502
            if (c < ' ' || c > '~')
503
                c = '.';
504
            printf("%c", c);
505
        }
506
        printf("\n");
507
    }
508
}
509

    
510
/*
511
 * The following code is the main loop of the file converter
512
 */
513
static int av_encode(AVFormatContext **output_files,
514
                     int nb_output_files,
515
                     AVFormatContext **input_files,
516
                     int nb_input_files,
517
                     AVStreamMap *stream_maps, int nb_stream_maps)
518
{
519
    int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
520
    AVFormatContext *is, *os;
521
    AVCodecContext *codec, *icodec;
522
    AVOutputStream *ost, **ost_table = NULL;
523
    AVInputStream *ist, **ist_table = NULL;
524
    INT64 min_pts, start_time;
525
    AVInputFile *file_table;
526

    
527
    file_table= (AVInputFile*) malloc(nb_input_files * sizeof(AVInputFile));
528
    if (!file_table)
529
        goto fail;
530

    
531
    memset(file_table, 0, sizeof(file_table));
532
    
533
    /* input stream init */
534
    j = 0;
535
    for(i=0;i<nb_input_files;i++) {
536
        is = input_files[i];
537
        file_table[i].ist_index = j;
538
        j += is->nb_streams;
539
    }
540
    nb_istreams = j;
541

    
542
    ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
543
    if (!ist_table)
544
        goto fail;
545
    
546
    for(i=0;i<nb_istreams;i++) {
547
        ist = av_mallocz(sizeof(AVInputStream));
548
        if (!ist)
549
            goto fail;
550
        ist_table[i] = ist;
551
    }
552
    j = 0;
553
    for(i=0;i<nb_input_files;i++) {
554
        is = input_files[i];
555
        for(k=0;k<is->nb_streams;k++) {
556
            ist = ist_table[j++];
557
            ist->st = is->streams[k];
558
            ist->file_index = i;
559
            ist->index = k;
560
            ist->discard = 1; /* the stream is discarded by default
561
                                 (changed later) */
562
        }
563
    }
564

    
565
    /* output stream init */
566
    nb_ostreams = 0;
567
    for(i=0;i<nb_output_files;i++) {
568
        os = output_files[i];
569
        nb_ostreams += os->nb_streams;
570
    }
571
    if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
572
        fprintf(stderr, "Number of stream maps must match number of output streams\n");
573
        exit(1);
574
    }
575

    
576
    ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
577
    if (!ost_table)
578
        goto fail;
579
    for(i=0;i<nb_ostreams;i++) {
580
        ost = av_mallocz(sizeof(AVOutputStream));
581
        if (!ost)
582
            goto fail;
583
        ost_table[i] = ost;
584
    }
585
    
586
    n = 0;
587
    for(k=0;k<nb_output_files;k++) {
588
        os = output_files[k];
589
        for(i=0;i<os->nb_streams;i++) {
590
            int found;
591
            ost = ost_table[n++];
592
            ost->file_index = k;
593
            ost->index = i;
594
            ost->st = os->streams[i];
595
            if (nb_stream_maps > 0) {
596
                ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + 
597
                    stream_maps[n-1].stream_index;
598
            } else {
599
                /* get corresponding input stream index : we select the first one with the right type */
600
                found = 0;
601
                for(j=0;j<nb_istreams;j++) {
602
                    ist = ist_table[j];
603
                    if (ist->discard && 
604
                        ist->st->codec.codec_type == ost->st->codec.codec_type) {
605
                        ost->source_index = j;
606
                        found = 1;
607
                    }
608
                }
609
                
610
                if (!found) {
611
                    /* try again and reuse existing stream */
612
                    for(j=0;j<nb_istreams;j++) {
613
                        ist = ist_table[j];
614
                        if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
615
                            ost->source_index = j;
616
                            found = 1;
617
                        }
618
                    }
619
                    if (!found) {
620
                        fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
621
                                ost->file_index, ost->index);
622
                        exit(1);
623
                    }
624
                }
625
            }
626
            ist = ist_table[ost->source_index];
627
            ist->discard = 0;
628
        }
629
    }
630

    
631
    /* dump the stream mapping */
632
    fprintf(stderr, "Stream mapping:\n");
633
    for(i=0;i<nb_ostreams;i++) {
634
        ost = ost_table[i];
635
        fprintf(stderr, "  Stream #%d.%d -> #%d.%d\n",
636
                ist_table[ost->source_index]->file_index,
637
                ist_table[ost->source_index]->index,
638
                ost->file_index, 
639
                ost->index);
640
    }
641

    
642
    /* for each output stream, we compute the right encoding parameters */
643
    for(i=0;i<nb_ostreams;i++) {
644
        ost = ost_table[i];
645
        ist = ist_table[ost->source_index];
646

    
647
        codec = &ost->st->codec;
648
        icodec = &ist->st->codec;
649

    
650
        switch(codec->codec_type) {
651
        case CODEC_TYPE_AUDIO:
652
            /* check if same codec with same parameters. If so, no
653
               reencoding is needed */
654
            if (codec->codec_id == icodec->codec_id &&
655
                codec->bit_rate == icodec->bit_rate &&
656
                codec->sample_rate == icodec->sample_rate &&
657
                codec->channels == icodec->channels) {
658
                /* no reencoding */
659
            } else {
660
                if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
661
                    goto fail;
662

    
663
                if (codec->channels == icodec->channels &&
664
                    codec->sample_rate == icodec->sample_rate) {
665
                    ost->audio_resample = 0;
666
                } else {
667
                    ost->audio_resample = 1;
668
                    ost->resample = audio_resample_init(codec->channels, icodec->channels,
669
                                                        codec->sample_rate, 
670
                                                        icodec->sample_rate);
671
                }
672
                ist->decoding_needed = 1;
673
                ost->encoding_needed = 1;
674
            }
675
            break;
676
        case CODEC_TYPE_VIDEO:
677
            /* check if same codec with same parameters. If so, no
678
               reencoding is needed */
679
            if (codec->codec_id == icodec->codec_id &&
680
                codec->bit_rate == icodec->bit_rate &&
681
                codec->frame_rate == icodec->frame_rate &&
682
                codec->width == icodec->width &&
683
                codec->height == icodec->height) {
684
                /* no reencoding */
685
            } else {
686
                if (codec->width == icodec->width &&
687
                    codec->height == icodec->height) {
688
                    ost->video_resample = 0;
689
                } else {
690
                    UINT8 *buf;
691
                    ost->video_resample = 1;
692
                    buf = malloc((codec->width * codec->height * 3) / 2);
693
                    if (!buf)
694
                        goto fail;
695
                    ost->pict_tmp.data[0] = buf;
696
                    ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
697
                    ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
698
                    ost->pict_tmp.linesize[0] = codec->width;
699
                    ost->pict_tmp.linesize[1] = codec->width / 2;
700
                    ost->pict_tmp.linesize[2] = codec->width / 2;
701

    
702
                    ost->img_resample_ctx = img_resample_init( 
703
                                      ost->st->codec.width, ost->st->codec.height,
704
                                      ist->st->codec.width, ist->st->codec.height);
705
                }
706
                ost->encoding_needed = 1;
707
                ist->decoding_needed = 1;
708
            }
709
            break;
710
        }
711
    }
712

    
713
    /* open each encoder */
714
    for(i=0;i<nb_ostreams;i++) {
715
        ost = ost_table[i];
716
        if (ost->encoding_needed) {
717
            AVCodec *codec;
718
            codec = avcodec_find_encoder(ost->st->codec.codec_id);
719
            if (!codec) {
720
                fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", 
721
                        ost->file_index, ost->index);
722
                exit(1);
723
            }
724
            if (avcodec_open(&ost->st->codec, codec) < 0) {
725
                fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", 
726
                        ost->file_index, ost->index);
727
                exit(1);
728
            }
729
        }
730
    }
731

    
732
    /* open each decoder */
733
    for(i=0;i<nb_istreams;i++) {
734
        ist = ist_table[i];
735
        if (ist->decoding_needed) {
736
            AVCodec *codec;
737
            codec = avcodec_find_decoder(ist->st->codec.codec_id);
738
            if (!codec) {
739
                fprintf(stderr, "Unsupported codec for input stream #%d.%d\n", 
740
                        ist->file_index, ist->index);
741
                exit(1);
742
            }
743
            if (avcodec_open(&ist->st->codec, codec) < 0) {
744
                fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", 
745
                        ist->file_index, ist->index);
746
                exit(1);
747
            }
748
        }
749
    }
750

    
751
    /* init pts */
752
    for(i=0;i<nb_istreams;i++) {
753
        ist = ist_table[i];
754
        ist->pts = 0;
755
        ist->frame_number = 0;
756
    }
757
    
758
    /* compute buffer size max (should use a complete heuristic) */
759
    for(i=0;i<nb_input_files;i++) {
760
        file_table[i].buffer_size_max = 2048;
761
    }
762

    
763
    /* open files and write file headers */
764
    for(i=0;i<nb_output_files;i++) {
765
        os = output_files[i];
766
        if (os->format->write_header(os) < 0) {
767
            fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
768
            ret = -EINVAL;
769
            goto fail;
770
        }
771
    }
772

    
773
#ifndef CONFIG_WIN32
774
    if (!do_play) {
775
        fprintf(stderr, "Press [q] to stop encoding\n");
776
    } else {
777
        fprintf(stderr, "Press [q] to stop playing\n");
778
    }
779
#endif
780
    term_init();
781

    
782
    start_time = gettime();
783
    min_pts = 0;
784
    for(;;) {
785
        int file_index, ist_index;
786
        AVPacket pkt;
787
        UINT8 *ptr;
788
        int len;
789
        UINT8 *data_buf;
790
        int data_size, got_picture;
791
        AVPicture picture;
792
        short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
793

    
794
    redo:
795
        /* if 'q' pressed, exits */
796
        if (read_key() == 'q')
797
            break;
798

    
799
        /* select the input file with the smallest pts */
800
        file_index = -1;
801
        min_pts = MAXINT64;
802
        for(i=0;i<nb_istreams;i++) {
803
            ist = ist_table[i];
804
            if (!ist->discard && !file_table[ist->file_index].eof_reached && ist->pts < min_pts) {
805
                min_pts = ist->pts;
806
                file_index = ist->file_index;
807
            }
808
        }
809
        /* if none, if is finished */
810
        if (file_index < 0)
811
            break;
812
        /* finish if recording time exhausted */
813
        if (recording_time > 0 && min_pts >= recording_time)
814
            break;
815
        /* read a packet from it and output it in the fifo */
816
        is = input_files[file_index];
817
        if (av_read_packet(is, &pkt) < 0) {
818
            file_table[file_index].eof_reached = 1;
819
            continue;
820
        }
821
        ist_index = file_table[file_index].ist_index + pkt.stream_index;
822
        ist = ist_table[ist_index];
823
        if (ist->discard) {
824
            continue;
825
        }
826

    
827
        if (do_hex_dump) {
828
            printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
829
            hex_dump(pkt.data, pkt.size);
830
        }
831

    
832
        //        printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
833

    
834
        len = pkt.size;
835
        ptr = pkt.data;
836
        while (len > 0) {
837

    
838
            /* decode the packet if needed */
839
            data_buf = NULL; /* fail safe */
840
            data_size = 0;
841
            if (ist->decoding_needed) {
842
                switch(ist->st->codec.codec_type) {
843
                case CODEC_TYPE_AUDIO:
844
                    /* XXX: could avoid copy if PCM 16 bits with same
845
                       endianness as CPU */
846
                    ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
847
                                               ptr, len);
848
                    if (ret < 0)
849
                        goto fail_decode;
850
                    if (data_size == 0) {
851
                        /* no audio frame */
852
                        ptr += ret;
853
                        len -= ret;
854
                        continue;
855
                    }
856
                    data_buf = (UINT8 *)samples;
857
                    break;
858
                case CODEC_TYPE_VIDEO:
859
                    if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
860
                        int size;
861
                        size = (ist->st->codec.width * ist->st->codec.height);
862
                        avpicture_fill(&picture, ptr, 
863
                                     ist->st->codec.pix_fmt,
864
                                     ist->st->codec.width,
865
                                     ist->st->codec.height);
866
                        ret = len;
867
                    } else {
868
                        data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
869
                        ret = avcodec_decode_video(&ist->st->codec, 
870
                                                   &picture, &got_picture, ptr, len);
871
                        if (ret < 0) {
872
                        fail_decode:
873
                            fprintf(stderr, "Error while decoding stream #%d.%d\n",
874
                                    ist->file_index, ist->index);
875
                            av_free_packet(&pkt);
876
                            goto redo;
877
                        }
878
                        if (!got_picture) {
879
                            /* no picture yet */
880
                            ptr += ret;
881
                            len -= ret;
882
                            continue;
883
                        }
884
                    }
885
                    break;
886
                default:
887
                    goto fail_decode;
888
                }
889
            } else {
890
                data_buf = ptr;
891
                data_size = len;
892
                ret = len;
893
            }
894
            /* update pts */
895
            switch(ist->st->codec.codec_type) {
896
            case CODEC_TYPE_AUDIO:
897
                ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate;
898
                ist->sample_index += data_size / (2 * ist->st->codec.channels);
899
                break;
900
            case CODEC_TYPE_VIDEO:
901
                ist->frame_number++;
902
                ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) / 
903
                    ist->st->codec.frame_rate;
904
                break;
905
            }
906
            ptr += ret;
907
            len -= ret;
908

    
909
            /* transcode raw format, encode packets and output them */
910
            
911
            for(i=0;i<nb_ostreams;i++) {
912
                ost = ost_table[i];
913
                if (ost->source_index == ist_index) {
914
                    os = output_files[ost->file_index];
915

    
916
                    if (ost->encoding_needed) {
917
                        switch(ost->st->codec.codec_type) {
918
                        case CODEC_TYPE_AUDIO:
919
                            do_audio_out(os, ost, ist, data_buf, data_size);
920
                            break;
921
                        case CODEC_TYPE_VIDEO:
922
                            do_video_out(os, ost, ist, &picture);
923
                            break;
924
                        }
925
                    } else {
926
                        /* no reencoding needed : output the packet directly */
927
                        os->format->write_packet(os, ost->index, data_buf, data_size);
928
                    }
929
                }
930
            }
931
        }
932
        av_free_packet(&pkt);
933
        
934
        /* dump report by using the first video and audio streams */
935
        {
936
            char buf[1024];
937
            AVFormatContext *oc;
938
            INT64 total_size, ti;
939
            AVCodecContext *enc;
940
            int frame_number, vid;
941
            double bitrate, ti1;
942
            static INT64 last_time;
943

    
944
            if ((min_pts - last_time) >= 500000) {
945
                last_time = min_pts;
946
                
947
                oc = output_files[0];
948
                
949
                total_size = url_ftell(&oc->pb);
950
                
951
                buf[0] = '\0';
952
                ti = MAXINT64;
953
                vid = 0;
954
                for(i=0;i<nb_ostreams;i++) {
955
                    ost = ost_table[i];
956
                    enc = &ost->st->codec;
957
                    ist = ist_table[ost->source_index];
958
                    if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
959
                        frame_number = ist->frame_number;
960
                        sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
961
                                frame_number, enc->quality);
962
                        if (do_psnr)
963
                            sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
964
                        vid = 1;
965
                    }
966
                    /* compute min pts value */
967
                    if (!ist->discard && ist->pts < ti) {
968
                        ti = ist->pts;
969
                    }
970
                }
971

    
972
                ti1 = (double)ti / 1000000.0;
973
                if (ti1 < 0.1)
974
                    ti1 = 0.1;
975
                bitrate = (double)(total_size * 8) / ti1 / 1000.0;
976

    
977
                sprintf(buf + strlen(buf), 
978
                        "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
979
                        (double)total_size / 1024, ti1, bitrate);
980
                
981
                fprintf(stderr, "%s    \r", buf);
982
                fflush(stderr);
983
            }
984
        }
985
    }
986
    term_exit();
987

    
988
    /* dump report by using the first video and audio streams */
989
    {
990
        char buf[1024];
991
        AVFormatContext *oc;
992
        INT64 total_size, ti;
993
        AVCodecContext *enc;
994
        int frame_number, vid;
995
        double bitrate, ti1;
996

    
997
        oc = output_files[0];
998
        
999
        total_size = url_ftell(&oc->pb);
1000
        
1001
        buf[0] = '\0';
1002
        ti = MAXINT64;
1003
        vid = 0;
1004
        for(i=0;i<nb_ostreams;i++) {
1005
            ost = ost_table[i];
1006
            enc = &ost->st->codec;
1007
            ist = ist_table[ost->source_index];
1008
            if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1009
                frame_number = ist->frame_number;
1010
                sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1011
                        frame_number, enc->quality);
1012
                if (do_psnr)
1013
                    sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
1014
                vid = 1;
1015
            }
1016
            /* compute min pts value */
1017
            if (!ist->discard && ist->pts < ti) {
1018
                ti = ist->pts;
1019
            }
1020
        }
1021
        
1022
        ti1 = ti / 1000000.0;
1023
        if (ti1 < 0.1)
1024
            ti1 = 0.1;
1025
        bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1026
        
1027
        sprintf(buf + strlen(buf), 
1028
                "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1029
                (double)total_size / 1024, ti1, bitrate);
1030
        
1031
        fprintf(stderr, "%s    \n", buf);
1032
    }
1033
    /* close each encoder */
1034
    for(i=0;i<nb_ostreams;i++) {
1035
        ost = ost_table[i];
1036
        if (ost->encoding_needed) {
1037
            avcodec_close(&ost->st->codec);
1038
        }
1039
    }
1040
    
1041
    /* close each decoder */
1042
    for(i=0;i<nb_istreams;i++) {
1043
        ist = ist_table[i];
1044
        if (ist->decoding_needed) {
1045
            avcodec_close(&ist->st->codec);
1046
        }
1047
    }
1048
    
1049

    
1050
    /* write the trailer if needed and close file */
1051
    for(i=0;i<nb_output_files;i++) {
1052
        os = output_files[i];
1053
        os->format->write_trailer(os);
1054
    }
1055
    /* finished ! */
1056
    
1057
    ret = 0;
1058
 fail1:
1059
    free(file_table);
1060

    
1061
    if (ist_table) {
1062
        for(i=0;i<nb_istreams;i++) {
1063
            ist = ist_table[i];
1064
            if (ist) {
1065
                free(ist);
1066
            }
1067
        }
1068
        free(ist_table);
1069
    }
1070
    if (ost_table) {
1071
        for(i=0;i<nb_ostreams;i++) {
1072
            ost = ost_table[i];
1073
            if (ost) {
1074
                if (ost->pict_tmp.data[0])
1075
                    free(ost->pict_tmp.data[0]);
1076
                if (ost->video_resample)
1077
                    img_resample_close(ost->img_resample_ctx);
1078
                if (ost->audio_resample)
1079
                    audio_resample_close(ost->resample);
1080
                free(ost);
1081
            }
1082
        }
1083
        free(ost_table);
1084
    }
1085
    return ret;
1086
 fail:
1087
    ret = -ENOMEM;
1088
    goto fail1;
1089
}
1090

    
1091
#if 0
1092
int file_read(const char *filename)
1093
{
1094
    URLContext *h;
1095
    unsigned char buffer[1024];
1096
    int len, i;
1097

1098
    if (url_open(&h, filename, O_RDONLY) < 0) {
1099
        printf("could not open '%s'\n", filename);
1100
        return -1;
1101
    }
1102
    for(;;) {
1103
        len = url_read(h, buffer, sizeof(buffer));
1104
        if (len <= 0)
1105
            break;
1106
        for(i=0;i<len;i++) putchar(buffer[i]);
1107
    }
1108
    url_close(h);
1109
    return 0;
1110
}
1111
#endif
1112

    
1113
void show_licence(void)
1114
{
1115
    printf(
1116
    "ffmpeg version " FFMPEG_VERSION "\n"
1117
    "Copyright (c) 2000,2001 Gerard Lantau\n"
1118
    "This program is free software; you can redistribute it and/or modify\n"
1119
    "it under the terms of the GNU General Public License as published by\n"
1120
    "the Free Software Foundation; either version 2 of the License, or\n"
1121
    "(at your option) any later version.\n"
1122
    "\n"
1123
    "This program is distributed in the hope that it will be useful,\n"
1124
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1125
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1126
    "GNU General Public License for more details.\n"
1127
    "\n"
1128
    "You should have received a copy of the GNU General Public License\n"
1129
    "along with this program; if not, write to the Free Software\n"
1130
    "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
1131
    );
1132
    exit(1);
1133
}
1134

    
1135
void opt_format(const char *arg)
1136
{
1137
    AVFormat *f;
1138
    f = first_format;
1139
    while (f != NULL && strcmp(f->name, arg) != 0) f = f->next;
1140
    if (f == NULL) {
1141
        fprintf(stderr, "Invalid format: %s\n", arg);
1142
        exit(1);
1143
    }
1144
    file_format = f;
1145
}
1146

    
1147
void opt_video_bitrate(const char *arg)
1148
{
1149
    video_bit_rate = atoi(arg) * 1000;
1150
}
1151

    
1152
void opt_frame_rate(const char *arg)
1153
{
1154
    frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
1155
}
1156

    
1157
void opt_frame_size(const char *arg)
1158
{
1159
    parse_image_size(&frame_width, &frame_height, arg);
1160
    if (frame_width <= 0 || frame_height <= 0) {
1161
        fprintf(stderr, "Incorrect frame size\n");
1162
        exit(1);
1163
    }
1164
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1165
        fprintf(stderr, "Frame size must be a multiple of 2\n");
1166
        exit(1);
1167
    }
1168
}
1169

    
1170
void opt_gop_size(const char *arg)
1171
{
1172
    gop_size = atoi(arg);
1173
}
1174

    
1175
void opt_qscale(const char *arg)
1176
{
1177
    video_qscale = atoi(arg);
1178
    if (video_qscale < 0 ||
1179
        video_qscale > 31) {
1180
        fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1181
        exit(1);
1182
    }
1183
}
1184

    
1185

    
1186
void opt_audio_bitrate(const char *arg)
1187
{
1188
    audio_bit_rate = atoi(arg) * 1000;
1189
}
1190

    
1191
void opt_audio_rate(const char *arg)
1192
{
1193
    audio_sample_rate = atoi(arg);
1194
}
1195

    
1196
void opt_audio_channels(const char *arg)
1197
{
1198
    audio_channels = atoi(arg);
1199
}
1200

    
1201
#ifdef CONFIG_GRAB
1202
void opt_video_device(const char *arg)
1203
{
1204
    v4l_device = strdup(arg);
1205
}
1206

    
1207
void opt_audio_device(const char *arg)
1208
{
1209
    audio_device = strdup(arg);
1210
}
1211
#endif
1212

    
1213
void opt_audio_codec(const char *arg)
1214
{
1215
    AVCodec *p;
1216

    
1217
    p = first_avcodec;
1218
    while (p) {
1219
        if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1220
            break;
1221
        p = p->next;
1222
    }
1223
    if (p == NULL) {
1224
        fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1225
        exit(1);
1226
    } else {
1227
        audio_codec_id = p->id;
1228
    }
1229
}
1230

    
1231
const char *motion_str[] = {
1232
    "zero",
1233
    "full",
1234
    "log",
1235
    "phods",
1236
    NULL,
1237
};
1238

    
1239
void opt_motion_estimation(const char *arg)
1240
{
1241
    const char **p;
1242
    p = motion_str;
1243
    for(;;) {
1244
        if (!*p) {
1245
            fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1246
            exit(1);
1247
        }
1248
        if (!strcmp(*p, arg))
1249
            break;
1250
        p++;
1251
    }
1252
    motion_estimation_method = p - motion_str;
1253
}
1254

    
1255
void opt_video_codec(const char *arg)
1256
{
1257
    AVCodec *p;
1258

    
1259
    p = first_avcodec;
1260
    while (p) {
1261
        if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1262
            break;
1263
        p = p->next;
1264
    }
1265
    if (p == NULL) {
1266
        fprintf(stderr, "Unknown video codec '%s'\n", arg);
1267
        exit(1);
1268
    } else {
1269
        video_codec_id = p->id;
1270
    }
1271
}
1272

    
1273
void opt_map(const char *arg)
1274
{
1275
    AVStreamMap *m;
1276
    const char *p;
1277

    
1278
    p = arg;
1279
    m = &stream_maps[nb_stream_maps++];
1280

    
1281
    m->file_index = strtol(arg, (char **)&p, 0);
1282
    if (*p)
1283
        p++;
1284
    m->stream_index = strtol(arg, (char **)&p, 0);
1285
}
1286

    
1287
void opt_recording_time(const char *arg)
1288
{
1289
    recording_time = parse_date(arg, 1);
1290
}
1291

    
1292
/* return the number of packet read to find the codec parameters */
1293
int find_codec_parameters(AVFormatContext *ic)
1294
{
1295
    int val, i, count, ret, got_picture, size;
1296
    AVCodec *codec;
1297
    AVCodecContext *enc;
1298
    AVStream *st;
1299
    AVPacket *pkt;
1300
    AVPicture picture;
1301
    AVPacketList *pktl, **ppktl;
1302
    short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
1303
    UINT8 *ptr;
1304

    
1305
    count = 0;
1306
    ppktl = &ic->packet_buffer;
1307
    for(;;) {
1308
        for(i=0;i<ic->nb_streams;i++) {
1309
            enc = &ic->streams[i]->codec;
1310
            
1311
            switch(enc->codec_type) {
1312
            case CODEC_TYPE_AUDIO:
1313
                val = enc->sample_rate;
1314
                break;
1315
            case CODEC_TYPE_VIDEO:
1316
                val = enc->width;
1317
                break;
1318
            default:
1319
                val = 1;
1320
                break;
1321
            }
1322
            /* if no parameters supplied, then we should read it from
1323
               the stream */
1324
            if (val == 0)
1325
                break;
1326
        }
1327
        if (i == ic->nb_streams) {
1328
            ret = count;
1329
            break;
1330
        }
1331

    
1332
        if (count == 0) {
1333
            /* open each codec */
1334
            for(i=0;i<ic->nb_streams;i++) {
1335
                st = ic->streams[i];
1336
                codec = avcodec_find_decoder(st->codec.codec_id);
1337
                if (codec == NULL) {
1338
                    ret = -1;
1339
                    goto the_end;
1340
                }
1341
                avcodec_open(&st->codec, codec);
1342
            }
1343
        }
1344
        pktl = av_mallocz(sizeof(AVPacketList));
1345
        if (!pktl) {
1346
            ret = -1;
1347
            break;
1348
        }
1349

    
1350
        /* add the packet in the buffered packet list */
1351
        *ppktl = pktl;
1352
        ppktl = &pktl->next;
1353

    
1354
        pkt = &pktl->pkt;
1355
        if (ic->format->read_packet(ic, pkt) < 0) {
1356
            ret = -1;
1357
            break;
1358
        }
1359
        st = ic->streams[pkt->stream_index];
1360

    
1361
        /* decode the data and update codec parameters */
1362
        ptr = pkt->data;
1363
        size = pkt->size;
1364
        while (size > 0) {
1365
            switch(st->codec.codec_type) {
1366
            case CODEC_TYPE_VIDEO:
1367
                ret = avcodec_decode_video(&st->codec, &picture, &got_picture, ptr, size);
1368
                break;
1369
            case CODEC_TYPE_AUDIO:
1370
                ret = avcodec_decode_audio(&st->codec, samples, &got_picture, ptr, size);
1371
                break;
1372
            default:
1373
                ret = -1;
1374
                break;
1375
            }
1376
            if (ret < 0) {
1377
                ret = -1;
1378
                goto the_end;
1379
            }
1380
            if (got_picture)
1381
                break;
1382
            ptr += ret;
1383
            size -= ret;
1384
        }
1385

    
1386
        count++;
1387
    }
1388
 the_end:
1389
    if (count > 0) {
1390
        /* close each codec */
1391
        for(i=0;i<ic->nb_streams;i++) {
1392
            st = ic->streams[i];
1393
            avcodec_close(&st->codec);
1394
        }
1395
    }
1396
    return ret;
1397
}
1398

    
1399
int filename_number_test(const char *filename)
1400
{
1401
    char buf[1024];
1402

    
1403
    if (get_frame_filename(buf, sizeof(buf), filename, 1) < 0) {
1404
        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
1405
                "Use '%%d' to specify the image number:\n"
1406
                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
1407
                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", 
1408
                filename);
1409
        return -1;
1410
    } else {
1411
        return 0;
1412
    }
1413
}
1414

    
1415
void opt_input_file(const char *filename)
1416
{
1417
    AVFormatContext *ic;
1418
    AVFormatParameters params, *ap = &params;
1419
    URLFormat url_format;
1420
    AVFormat *fmt;
1421
    int err, i, ret;
1422

    
1423
    ic = av_mallocz(sizeof(AVFormatContext));
1424
    strcpy(ic->filename, filename);
1425
    /* first format guess to know if we must open file */
1426
    fmt = file_format;
1427
    if (!fmt) 
1428
        fmt = guess_format(NULL, filename, NULL);
1429
    
1430
    if (fmt == NULL || !(fmt->flags & AVFMT_NOFILE)) {
1431
        /* open file */
1432
        if (url_fopen(&ic->pb, filename, URL_RDONLY) < 0) {
1433
            fprintf(stderr, "Could not open '%s'\n", filename);
1434
            exit(1);
1435
        }
1436
    
1437
        /* find format and set default parameters */
1438
        fmt = file_format;
1439
        err = url_getformat(url_fileno(&ic->pb), &url_format);
1440
        if (err >= 0) {
1441
            if (!fmt)
1442
                fmt = guess_format(url_format.format_name, NULL, NULL);
1443
            ap->sample_rate = url_format.sample_rate;
1444
            ap->frame_rate = url_format.frame_rate;
1445
            ap->channels = url_format.channels;
1446
            ap->width = url_format.width;
1447
            ap->height = url_format.height;
1448
            ap->pix_fmt = url_format.pix_fmt;
1449
        } else {
1450
            if (!fmt)
1451
                fmt = guess_format(NULL, filename, NULL);
1452
            memset(ap, 0, sizeof(*ap));
1453
        }
1454
    } else {
1455
        memset(ap, 0, sizeof(*ap));
1456
    }
1457

    
1458
    if (!fmt || !fmt->read_header) {
1459
        fprintf(stderr, "%s: Unknown file format\n", filename);
1460
        exit(1);
1461
    }
1462
    ic->format = fmt;
1463

    
1464
    /* get default parameters from command line */
1465
    if (!ap->sample_rate)
1466
        ap->sample_rate = audio_sample_rate;
1467
    if (!ap->channels)
1468
        ap->channels = audio_channels;
1469

    
1470
    if (!ap->frame_rate)
1471
        ap->frame_rate = frame_rate;
1472
    if (!ap->width)
1473
        ap->width = frame_width;
1474
    if (!ap->height)
1475
        ap->height = frame_height;
1476

    
1477
    /* check filename in case of an image number is expected */
1478
    if (ic->format->flags & AVFMT_NEEDNUMBER) {
1479
        if (filename_number_test(ic->filename) < 0)
1480
            exit(1);
1481
    }
1482
    
1483
    err = ic->format->read_header(ic, ap);
1484
    if (err < 0) {
1485
        fprintf(stderr, "%s: Error while parsing header\n", filename);
1486
        exit(1);
1487
    }
1488
    
1489
    /* If not enough info for the codecs, we decode the first frames
1490
       to get it. (used in mpeg case for example) */
1491
    ret = find_codec_parameters(ic);
1492
    if (ret < 0) {
1493
        fprintf(stderr, "%s: could not find codec parameters\n", filename);
1494
        exit(1);
1495
    }
1496

    
1497
    /* update the current parameters so that they match the one of the input stream */
1498
    for(i=0;i<ic->nb_streams;i++) {
1499
        AVCodecContext *enc = &ic->streams[i]->codec;
1500
        switch(enc->codec_type) {
1501
        case CODEC_TYPE_AUDIO:
1502
            audio_channels = enc->channels;
1503
            audio_sample_rate = enc->sample_rate;
1504
            break;
1505
        case CODEC_TYPE_VIDEO:
1506
            frame_height = enc->height;
1507
            frame_width = enc->width;
1508
            frame_rate = enc->frame_rate;
1509
            break;
1510
        }
1511
    }
1512
    
1513
    input_files[nb_input_files] = ic;
1514
    /* dump the file content */
1515
    dump_format(ic, nb_input_files, filename, 0);
1516
    nb_input_files++;
1517
    file_format = NULL;
1518
}
1519

    
1520
void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
1521
{
1522
    int has_video, has_audio, i, j;
1523
    AVFormatContext *ic;
1524

    
1525
    has_video = 0;
1526
    has_audio = 0;
1527
    for(j=0;j<nb_input_files;j++) {
1528
        ic = input_files[j];
1529
        for(i=0;i<ic->nb_streams;i++) {
1530
            AVCodecContext *enc = &ic->streams[i]->codec;
1531
            switch(enc->codec_type) {
1532
            case CODEC_TYPE_AUDIO:
1533
                has_audio = 1;
1534
                break;
1535
            case CODEC_TYPE_VIDEO:
1536
                has_video = 1;
1537
                break;
1538
            }
1539
        }
1540
    }
1541
    *has_video_ptr = has_video;
1542
    *has_audio_ptr = has_audio;
1543
}
1544

    
1545
void opt_output_file(const char *filename)
1546
{
1547
    AVStream *st;
1548
    AVFormatContext *oc;
1549
    int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
1550
    int codec_id;
1551

    
1552
    if (!strcmp(filename, "-"))
1553
        filename = "pipe:";
1554

    
1555
    oc = av_mallocz(sizeof(AVFormatContext));
1556

    
1557
    if (!file_format) {
1558
        file_format = guess_format(NULL, filename, NULL);
1559
        if (!file_format)
1560
            file_format = &mpeg_mux_format;
1561
    }
1562
    
1563
    oc->format = file_format;
1564

    
1565
    if (!strcmp(file_format->name, "ffm") && 
1566
        strstart(filename, "http:", NULL)) {
1567
        /* special case for files sent to ffserver: we get the stream
1568
           parameters from ffserver */
1569
        if (read_ffserver_streams(oc, filename) < 0) {
1570
            fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
1571
            exit(1);
1572
        }
1573
    } else {
1574
        use_video = file_format->video_codec != CODEC_ID_NONE;
1575
        use_audio = file_format->audio_codec != CODEC_ID_NONE;
1576

    
1577
        /* disable if no corresponding type found and at least one
1578
           input file */
1579
        if (nb_input_files > 0) {
1580
            check_audio_video_inputs(&input_has_video, &input_has_audio);
1581
            if (!input_has_video)
1582
                use_video = 0;
1583
            if (!input_has_audio)
1584
                use_audio = 0;
1585
        }
1586

    
1587
        /* manual disable */
1588
        if (audio_disable) {
1589
            use_audio = 0;
1590
        }
1591
        if (video_disable) {
1592
            use_video = 0;
1593
        }
1594
        
1595
        nb_streams = 0;
1596
        if (use_video) {
1597
            AVCodecContext *video_enc;
1598
            
1599
            st = av_mallocz(sizeof(AVStream));
1600
            if (!st) {
1601
                fprintf(stderr, "Could not alloc stream\n");
1602
                exit(1);
1603
            }
1604
            video_enc = &st->codec;
1605

    
1606
            codec_id = file_format->video_codec;
1607
            if (video_codec_id != CODEC_ID_NONE)
1608
                codec_id = video_codec_id;
1609

    
1610
            video_enc->codec_id = codec_id;
1611
            video_enc->codec_type = CODEC_TYPE_VIDEO;
1612
            
1613
            video_enc->bit_rate = video_bit_rate;
1614
            video_enc->frame_rate = frame_rate; 
1615
            
1616
            video_enc->width = frame_width;
1617
            video_enc->height = frame_height;
1618
            if (!intra_only)
1619
                video_enc->gop_size = gop_size;
1620
            else
1621
                video_enc->gop_size = 0;
1622
            if (video_qscale || same_quality) {
1623
                video_enc->flags |= CODEC_FLAG_QSCALE;
1624
                video_enc->quality = video_qscale;
1625
            }
1626
            if (do_psnr)
1627
                video_enc->get_psnr = 1;
1628
            else
1629
                video_enc->get_psnr = 0;
1630
            /* XXX: need to find a way to set codec parameters */
1631
            if (oc->format == &ppm_format ||
1632
                oc->format == &ppmpipe_format) {
1633
                video_enc->pix_fmt = PIX_FMT_RGB24;
1634
            }
1635

    
1636
            oc->streams[nb_streams] = st;
1637
            nb_streams++;
1638
        }
1639
    
1640
        if (use_audio) {
1641
            AVCodecContext *audio_enc;
1642

    
1643
            st = av_mallocz(sizeof(AVStream));
1644
            if (!st) {
1645
                fprintf(stderr, "Could not alloc stream\n");
1646
                exit(1);
1647
            }
1648
            audio_enc = &st->codec;
1649
            codec_id = file_format->audio_codec;
1650
            if (audio_codec_id != CODEC_ID_NONE)
1651
                codec_id = audio_codec_id;
1652
            audio_enc->codec_id = codec_id;
1653
            audio_enc->codec_type = CODEC_TYPE_AUDIO;
1654
            
1655
            audio_enc->bit_rate = audio_bit_rate;
1656
            audio_enc->sample_rate = audio_sample_rate;
1657
            audio_enc->channels = audio_channels;
1658
            oc->streams[nb_streams] = st;
1659
            nb_streams++;
1660
        }
1661

    
1662
        oc->nb_streams = nb_streams;
1663

    
1664
        if (!nb_streams) {
1665
            fprintf(stderr, "No audio or video streams available\n");
1666
            exit(1);
1667
        }
1668

    
1669
        if (str_title)
1670
            nstrcpy(oc->title, sizeof(oc->title), str_title);
1671
        if (str_author)
1672
            nstrcpy(oc->author, sizeof(oc->author), str_author);
1673
        if (str_copyright)
1674
            nstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
1675
        if (str_comment)
1676
            nstrcpy(oc->comment, sizeof(oc->comment), str_comment);
1677
    }
1678

    
1679
    output_files[nb_output_files] = oc;
1680
    /* dump the file content */
1681
    dump_format(oc, nb_output_files, filename, 1);
1682
    nb_output_files++;
1683

    
1684
    strcpy(oc->filename, filename);
1685

    
1686
    /* check filename in case of an image number is expected */
1687
    if (oc->format->flags & AVFMT_NEEDNUMBER) {
1688
        if (filename_number_test(oc->filename) < 0)
1689
            exit(1);
1690
    }
1691

    
1692
    if (!(oc->format->flags & AVFMT_NOFILE)) {
1693
        /* test if it already exists to avoid loosing precious files */
1694
        if (!file_overwrite && 
1695
            (strchr(filename, ':') == NULL ||
1696
             strstart(filename, "file:", NULL))) {
1697
            if (url_exist(filename)) {
1698
                int c;
1699
                
1700
                printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
1701
                fflush(stdout);
1702
                c = getchar();
1703
                if (toupper(c) != 'Y') {
1704
                    fprintf(stderr, "Not overwriting - exiting\n");
1705
                    exit(1);
1706
                }
1707
            }
1708
        }
1709
        
1710
        /* open the file */
1711
        if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
1712
            fprintf(stderr, "Could not open '%s'\n", filename);
1713
            exit(1);
1714
        }
1715
    }
1716

    
1717
    /* reset some options */
1718
    file_format = NULL;
1719
    audio_disable = 0;
1720
    video_disable = 0;
1721
    audio_codec_id = CODEC_ID_NONE;
1722
    video_codec_id = CODEC_ID_NONE;
1723
}
1724

    
1725
#ifdef CONFIG_GRAB
1726

    
1727
/* prepare dummy protocols for grab */
1728
void prepare_grab(void)
1729
{
1730
    int has_video, has_audio, i, j;
1731
    AVFormatContext *oc;
1732
    AVFormatContext *ic;
1733
    AVFormatParameters ap1, *ap = &ap1;
1734

    
1735
    /* see if audio/video inputs are needed */
1736
    has_video = 0;
1737
    has_audio = 0;
1738
    memset(ap, 0, sizeof(*ap));
1739
    for(j=0;j<nb_output_files;j++) {
1740
        oc = output_files[j];
1741
        for(i=0;i<oc->nb_streams;i++) {
1742
            AVCodecContext *enc = &oc->streams[i]->codec;
1743
            switch(enc->codec_type) {
1744
            case CODEC_TYPE_AUDIO:
1745
                if (enc->sample_rate > ap->sample_rate)
1746
                    ap->sample_rate = enc->sample_rate;
1747
                if (enc->channels > ap->channels)
1748
                    ap->channels = enc->channels;
1749
                has_audio = 1;
1750
                break;
1751
            case CODEC_TYPE_VIDEO:
1752
                if (enc->width > ap->width)
1753
                    ap->width = enc->width;
1754
                if (enc->height > ap->height)
1755
                    ap->height = enc->height;
1756
                if (enc->frame_rate > ap->frame_rate)
1757
                    ap->frame_rate = enc->frame_rate;
1758
                has_video = 1;
1759
                break;
1760
            }
1761
        }
1762
    }
1763
    
1764
    if (has_video == 0 && has_audio == 0) {
1765
        fprintf(stderr, "Output file must have at least one audio or video stream\n");
1766
        exit(1);
1767
    }
1768
    
1769
    if (has_video) {
1770
        ic = av_open_input_file("", "video_grab_device", 0, ap);
1771
        if (!ic) {
1772
            fprintf(stderr, "Could not open video grab device\n");
1773
            exit(1);
1774
        }
1775
        input_files[nb_input_files] = ic;
1776
        dump_format(ic, nb_input_files, v4l_device, 0);
1777
        nb_input_files++;
1778
    }
1779
    if (has_audio) {
1780
        ic = av_open_input_file("", "audio_device", 0, ap);
1781
        if (!ic) {
1782
            fprintf(stderr, "Could not open audio grab device\n");
1783
            exit(1);
1784
        }
1785
        input_files[nb_input_files] = ic;
1786
        dump_format(ic, nb_input_files, audio_device, 0);
1787
        nb_input_files++;
1788
    }
1789
}
1790

    
1791
#else
1792

    
1793
void prepare_grab(void)
1794
{
1795
    fprintf(stderr, "Must supply at least one input file\n");
1796
    exit(1);
1797
}
1798

    
1799
#endif
1800

    
1801
/* open the necessary output devices for playing */
1802
void prepare_play(void)
1803
{
1804
#ifndef __BEOS__
1805
    file_format = guess_format("audio_device", NULL, NULL);
1806
    if (!file_format) {
1807
        fprintf(stderr, "Could not find audio device\n");
1808
        exit(1);
1809
    }
1810
    
1811
    opt_output_file(audio_device);
1812
#endif
1813
}
1814

    
1815

    
1816
#ifndef CONFIG_WIN32
1817
INT64 getutime(void)
1818
{
1819
    struct rusage rusage;
1820

    
1821
    getrusage(RUSAGE_SELF, &rusage);
1822
    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
1823
}
1824
#else
1825
INT64 getutime(void)
1826
{
1827
  return gettime();
1828
}
1829
#endif
1830

    
1831
void show_formats(void)
1832
{
1833
    AVFormat *f;
1834
    URLProtocol *up;
1835
    AVCodec *p;
1836
    const char **pp;
1837

    
1838
    printf("File formats:\n");
1839
    printf("  Encoding:");
1840
    for(f = first_format; f != NULL; f = f->next) {
1841
        if (f->write_header)
1842
            printf(" %s", f->name);
1843
    }
1844
    printf("\n");
1845
    printf("  Decoding:");
1846
    for(f = first_format; f != NULL; f = f->next) {
1847
        if (f->read_header)
1848
            printf(" %s", f->name);
1849
    }
1850
    printf("\n");
1851

    
1852
    printf("Codecs:\n");
1853
    printf("  Encoders:");
1854
    for(p = first_avcodec; p != NULL; p = p->next) {
1855
        if (p->encode)
1856
            printf(" %s", p->name);
1857
    }
1858
    printf("\n");
1859

    
1860
    printf("  Decoders:");
1861
    for(p = first_avcodec; p != NULL; p = p->next) {
1862
        if (p->decode)
1863
            printf(" %s", p->name);
1864
    }
1865
    printf("\n");
1866

    
1867
    printf("Supported file protocols:");
1868
    for(up = first_protocol; up != NULL; up = up->next)
1869
        printf(" %s:", up->name);
1870
    printf("\n");
1871
    
1872
    printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
1873
    printf("Motion estimation methods:");
1874
    pp = motion_str;
1875
    while (*pp) {
1876
        printf(" %s", *pp);
1877
        if ((pp - motion_str) == ME_ZERO) 
1878
            printf("(fastest)");
1879
        else if ((pp - motion_str) == ME_FULL) 
1880
            printf("(slowest)");
1881
        else if ((pp - motion_str) == ME_LOG) 
1882
            printf("(default)");
1883
        pp++;
1884
    }
1885
    printf("\n");
1886
    exit(1);
1887
}
1888

    
1889
void show_help(void)
1890
{
1891
    const char *prog;
1892
    const OptionDef *po;
1893
    int i, expert;
1894
    
1895
    prog = do_play ? "ffplay" : "ffmpeg";
1896

    
1897
    printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001 Gerard Lantau\n", 
1898
           prog);
1899
    
1900
    if (!do_play) {
1901
        printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
1902
               "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
1903
    } else {
1904
        printf("usage: ffplay [options] input_file...\n"
1905
               "Simple audio player\n");
1906
    }
1907
           
1908
    printf("\n"
1909
           "Main options are:\n");
1910
    for(i=0;i<2;i++) {
1911
        if (i == 1)
1912
            printf("\nAdvanced options are:\n");
1913
        for(po = options; po->name != NULL; po++) {
1914
            char buf[64];
1915
            expert = (po->flags & OPT_EXPERT) != 0;
1916
            if (expert == i) {
1917
                strcpy(buf, po->name);
1918
                if (po->flags & HAS_ARG) {
1919
                    strcat(buf, " ");
1920
                    strcat(buf, po->argname);
1921
                }
1922
                printf("-%-17s  %s\n", buf, po->help);
1923
            }
1924
        }
1925
    }
1926

    
1927
    exit(1);
1928
}
1929

    
1930
const OptionDef options[] = {
1931
    { "L", 0, {(void*)show_licence}, "show license" },
1932
    { "h", 0, {(void*)show_help}, "show help" },
1933
    { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
1934
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1935
    { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
1936
    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
1937
    { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
1938
    { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
1939
    { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
1940
    { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
1941
    { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
1942
    { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
1943
    /* video options */
1944
    { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
1945
    { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
1946
    { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
1947
    { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
1948
    { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
1949
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1950
    { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
1951
#ifdef CONFIG_GRAB
1952
    { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video device", "device" },
1953
#endif
1954
    { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" },
1955
    { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method", 
1956
      "method" },
1957
    { "sameq", OPT_BOOL, {(void*)&same_quality}, 
1958
      "use same video quality as source (implies VBR)" },
1959
    /* audio options */
1960
    { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
1961
    { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
1962
    { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
1963
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1964
#ifdef CONFIG_GRAB
1965
    { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
1966
#endif
1967
    { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" },
1968
    { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace}, 
1969
      "deinterlace pictures" },
1970
    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark}, 
1971
      "add timings for benchmarking" },
1972
    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump}, 
1973
      "dump each input packet" },
1974
    { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" }, 
1975

    
1976
    { NULL, },
1977
};
1978

    
1979
int main(int argc, char **argv)
1980
{
1981
    int optindex, i;
1982
    const char *opt, *arg;
1983
    const OptionDef *po;
1984
    INT64 ti;
1985
    
1986
    register_all();
1987

    
1988
    /* detect if invoked as player */
1989
    i = strlen(argv[0]);
1990
    if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
1991
        do_play = 1;
1992

    
1993
    if (argc <= 1)
1994
        show_help();
1995
    
1996
    /* parse options */
1997
    optindex = 1;
1998
    while (optindex < argc) {
1999
        opt = argv[optindex++];
2000
        
2001
        if (opt[0] == '-' && opt[1] != '\0') {
2002
            po = options;
2003
            while (po->name != NULL) {
2004
                if (!strcmp(opt + 1, po->name))
2005
                    break;
2006
                po++;
2007
            }
2008
            if (!po->name) {
2009
                fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
2010
                exit(1);
2011
            }
2012
            arg = NULL;
2013
            if (po->flags & HAS_ARG)
2014
                arg = argv[optindex++];
2015
            if (po->flags & OPT_STRING) {
2016
                char *str;
2017
                str = strdup(arg);
2018
                *po->u.str_arg = str;
2019
            } else if (po->flags & OPT_BOOL) {
2020
                *po->u.int_arg = 1;
2021
            } else {
2022
                po->u.func_arg(arg);
2023
            }
2024
        } else {
2025
            if (!do_play) {
2026
                opt_output_file(opt);
2027
            } else {
2028
                opt_input_file(opt);
2029
            }
2030
        }
2031
    }
2032

    
2033

    
2034
    if (!do_play) {
2035
        /* file converter / grab */
2036
        if (nb_output_files <= 0) {
2037
            fprintf(stderr, "Must supply at least one output file\n");
2038
            exit(1);
2039
        }
2040
        
2041
        if (nb_input_files == 0) {
2042
            prepare_grab();
2043
        }
2044
    } else {
2045
        /* player */
2046
        if (nb_input_files <= 0) {
2047
            fprintf(stderr, "Must supply at least one input file\n");
2048
            exit(1);
2049
        }
2050
        prepare_play();
2051
    }
2052

    
2053
    ti = getutime();
2054
    av_encode(output_files, nb_output_files, input_files, nb_input_files, 
2055
              stream_maps, nb_stream_maps);
2056
    ti = getutime() - ti;
2057
    if (do_benchmark) {
2058
        printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2059
    }
2060

    
2061
    /* close files */
2062
    for(i=0;i<nb_output_files;i++) {
2063
        if (!(output_files[i]->format->flags & AVFMT_NOFILE)) 
2064
            url_fclose(&output_files[i]->pb);
2065
    }
2066
    for(i=0;i<nb_input_files;i++) {
2067
        if (!(input_files[i]->format->flags & AVFMT_NOFILE)) 
2068
            url_fclose(&input_files[i]->pb);
2069
    }
2070

    
2071
    return 0;
2072
}