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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

    
102
typedef struct AVOutputStream {
103
    int file_index;          /* file index */
104
    int index;               /* stream index in the output file */
105
    int source_index;        /* AVInputStream index */
106
    AVStream *st;            /* stream in the output file */
107
    int encoding_needed;   /* true if encoding needed for this stream */
108

    
109
    int fifo_packet_rptr;    /* read index in the corresponding
110
                                avinputstream packet fifo */
111
    /* video only */
112
    AVPicture pict_tmp;         /* temporary image for resizing */
113
    int video_resample;
114
    ImgReSampleContext *img_resample_ctx; /* for image resampling */
115
    
116
    /* audio only */
117
    int audio_resample;
118
    ReSampleContext *resample; /* for audio resampling */
119
    FifoBuffer fifo;     /* for compression: one audio fifo per codec */
120
} AVOutputStream;
121

    
122
typedef struct AVInputStream {
123
    int file_index;
124
    int index;
125
    AVStream *st;
126
    int discard;             /* true if stream data should be discarded */
127
    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
128
    INT64 pts;               /* current pts */
129
    int frame_number;        /* current frame */
130
    INT64 sample_index;      /* current sample */
131
} AVInputStream;
132

    
133
typedef struct AVInputFile {
134
    int eof_reached;      /* true if eof reached */
135
    int ist_index;        /* index of first stream in ist_table */
136
    int buffer_size;      /* current total buffer size */
137
    int buffer_size_max;  /* buffer size at which we consider we can stop
138
                             buffering */
139
} AVInputFile;
140

    
141
#ifndef CONFIG_WIN32
142

    
143
/* init terminal so that we can grab keys */
144
static struct termios oldtty;
145

    
146
static void term_exit(void)
147
{
148
    tcsetattr (0, TCSANOW, &oldtty);
149
}
150

    
151
static void term_init(void)
152
{
153
    struct termios tty;
154

    
155
    tcgetattr (0, &tty);
156
    oldtty = tty;
157

    
158
    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
159
                          |INLCR|IGNCR|ICRNL|IXON);
160
    tty.c_oflag |= OPOST;
161
    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
162
    tty.c_cflag &= ~(CSIZE|PARENB);
163
    tty.c_cflag |= CS8;
164
    tty.c_cc[VMIN] = 1;
165
    tty.c_cc[VTIME] = 0;
166
    
167
    tcsetattr (0, TCSANOW, &tty);
168

    
169
    atexit(term_exit);
170
}
171

    
172
/* read a key without blocking */
173
static int read_key(void)
174
{
175
    struct timeval tv;
176
    int n;
177
    unsigned char ch;
178
    fd_set rfds;
179

    
180
    FD_ZERO(&rfds);
181
    FD_SET(0, &rfds);
182
    tv.tv_sec = 0;
183
    tv.tv_usec = 0;
184
    n = select(1, &rfds, NULL, NULL, &tv);
185
    if (n > 0) {
186
        if (read(0, &ch, 1) == 1)
187
            return ch;
188
    }
189
    return -1;
190
}
191

    
192
#else
193

    
194
/* no interactive support */
195
static void term_exit(void)
196
{
197
}
198

    
199
static void term_init(void)
200
{
201
}
202

    
203
static int read_key(void)
204
{
205
    return -1;
206
}
207

    
208
#endif
209

    
210
int read_ffserver_streams(AVFormatContext *s, const char *filename)
211
{
212
    int i;
213
    AVFormatContext *ic;
214

    
215
    ic = av_open_input_file(filename, NULL, FFM_PACKET_SIZE, NULL);
216
    if (!ic)
217
        return -EIO;
218
    /* copy stream format */
219
    s->nb_streams = ic->nb_streams;
220
    for(i=0;i<ic->nb_streams;i++) {
221
        AVStream *st;
222
        st = av_mallocz(sizeof(AVFormatContext));
223
        memcpy(st, ic->streams[i], sizeof(AVStream));
224
        s->streams[i] = st;
225
    }
226

    
227
    av_close_input_file(ic);
228
    return 0;
229
}
230

    
231
#define MAX_AUDIO_PACKET_SIZE 16384
232

    
233
static void do_audio_out(AVFormatContext *s, 
234
                         AVOutputStream *ost, 
235
                         AVInputStream *ist,
236
                         unsigned char *buf, int size)
237
{
238
    UINT8 *buftmp;
239
    UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
240
    UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
241
    int size_out, frame_bytes, ret;
242
    AVCodecContext *enc;
243

    
244
    enc = &ost->st->codec;
245

    
246
    if (ost->audio_resample) {
247
        buftmp = audio_buf;
248
        size_out = audio_resample(ost->resample, 
249
                                  (short *)buftmp, (short *)buf,
250
                                  size / (ist->st->codec.channels * 2));
251
        size_out = size_out * enc->channels * 2;
252
    } else {
253
        buftmp = buf;
254
        size_out = size;
255
    }
256

    
257
    /* now encode as many frames as possible */
258
    if (enc->frame_size > 1) {
259
        /* output resampled raw samples */
260
        fifo_write(&ost->fifo, buftmp, size_out, 
261
                   &ost->fifo.wptr);
262

    
263
        frame_bytes = enc->frame_size * 2 * enc->channels;
264
        
265
        while (fifo_read(&ost->fifo, audio_buf, frame_bytes, 
266
                     &ost->fifo.rptr) == 0) {
267
            ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out), 
268
                                       (short *)audio_buf);
269
            s->format->write_packet(s, ost->index, audio_out, ret);
270
        }
271
    } else {
272
        /* output a pcm frame */
273
        /* XXX: change encoding codec API to avoid this ? */
274
        switch(enc->codec->id) {
275
        case CODEC_ID_PCM_S16LE:
276
        case CODEC_ID_PCM_S16BE:
277
        case CODEC_ID_PCM_U16LE:
278
        case CODEC_ID_PCM_U16BE:
279
            break;
280
        default:
281
            size_out = size_out >> 1;
282
            break;
283
        }
284
        ret = avcodec_encode_audio(enc, audio_out, size_out, 
285
                                   (short *)buftmp);
286
        s->format->write_packet(s, ost->index, audio_out, ret);
287
    }
288
}
289

    
290
/* write a picture to a raw mux */
291
static void write_picture(AVFormatContext *s, int index, AVPicture *picture, 
292
                          int pix_fmt, int w, int h)
293
{
294
    UINT8 *buf, *src, *dest;
295
    int size, j, i;
296

    
297
    size = avpicture_get_size(pix_fmt, w, h);
298
    buf = malloc(size);
299
    if (!buf)
300
        return;
301

    
302
    /* XXX: not efficient, should add test if we can take
303
       directly the AVPicture */
304
    switch(pix_fmt) {
305
    case PIX_FMT_YUV420P:
306
        dest = buf;
307
        for(i=0;i<3;i++) {
308
            if (i == 1) {
309
                w >>= 1;
310
                h >>= 1;
311
            }
312
            src = picture->data[i];
313
            for(j=0;j<h;j++) {
314
                memcpy(dest, src, w);
315
                dest += w;
316
                src += picture->linesize[i];
317
            }
318
        }
319
        break;
320
    case PIX_FMT_YUV422P:
321
        size = (w * h) * 2; 
322
        buf = malloc(size);
323
        dest = buf;
324
        for(i=0;i<3;i++) {
325
            if (i == 1) {
326
                w >>= 1;
327
            }
328
            src = picture->data[i];
329
            for(j=0;j<h;j++) {
330
                memcpy(dest, src, w);
331
                dest += w;
332
                src += picture->linesize[i];
333
            }
334
        }
335
        break;
336
    case PIX_FMT_YUV444P:
337
        size = (w * h) * 3; 
338
        buf = malloc(size);
339
        dest = buf;
340
        for(i=0;i<3;i++) {
341
            src = picture->data[i];
342
            for(j=0;j<h;j++) {
343
                memcpy(dest, src, w);
344
                dest += w;
345
                src += picture->linesize[i];
346
            }
347
        }
348
        break;
349
    case PIX_FMT_YUV422:
350
        size = (w * h) * 2; 
351
        buf = malloc(size);
352
        dest = buf;
353
        src = picture->data[0];
354
        for(j=0;j<h;j++) {
355
            memcpy(dest, src, w * 2);
356
            dest += w * 2;
357
            src += picture->linesize[0];
358
        }
359
        break;
360
    case PIX_FMT_RGB24:
361
    case PIX_FMT_BGR24:
362
        size = (w * h) * 3; 
363
        buf = malloc(size);
364
        dest = buf;
365
        src = picture->data[0];
366
        for(j=0;j<h;j++) {
367
            memcpy(dest, src, w * 3);
368
            dest += w * 3;
369
            src += picture->linesize[0];
370
        }
371
        break;
372
    default:
373
        return;
374
    }
375
    s->format->write_packet(s, index, buf, size);
376
    free(buf);
377
}
378

    
379

    
380
static void do_video_out(AVFormatContext *s, 
381
                         AVOutputStream *ost, 
382
                         AVInputStream *ist,
383
                         AVPicture *picture1)
384
{
385
    int n1, n2, nb, i, ret, frame_number;
386
    AVPicture *picture, *picture2, *pict;
387
    AVPicture picture_tmp1, picture_tmp2;
388
    UINT8 video_buffer[1024*1024];
389
    UINT8 *buf = NULL, *buf1 = NULL;
390
    AVCodecContext *enc, *dec;
391

    
392
    enc = &ost->st->codec;
393
    dec = &ist->st->codec;
394

    
395
    frame_number = ist->frame_number;
396
    /* first drop frame if needed */
397
    n1 = ((INT64)frame_number * enc->frame_rate) / dec->frame_rate;
398
    n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec->frame_rate;
399
    nb = n2 - n1;
400
    if (nb <= 0)
401
        return;
402
    
403
    /* deinterlace : must be done before any resize */
404
    if (do_deinterlace) {
405
        int size;
406

    
407
        /* create temporary picture */
408
        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
409
        buf1 = malloc(size);
410
        if (!buf1)
411
            return;
412
        
413
        picture2 = &picture_tmp2;
414
        avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
415

    
416
        if (avpicture_deinterlace(picture2, picture1, 
417
                                  dec->pix_fmt, dec->width, dec->height) < 0) {
418
            /* if error, do not deinterlace */
419
            free(buf1);
420
            buf1 = NULL;
421
            picture2 = picture1;
422
        }
423
    } else {
424
        picture2 = picture1;
425
    }
426

    
427
    /* convert pixel format if needed */
428
    if (enc->pix_fmt != dec->pix_fmt) {
429
        int size;
430

    
431
        /* create temporary picture */
432
        size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
433
        buf = malloc(size);
434
        if (!buf)
435
            return;
436
        pict = &picture_tmp1;
437
        avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
438
        
439
        if (img_convert(pict, enc->pix_fmt, 
440
                        picture2, dec->pix_fmt, 
441
                        dec->width, dec->height) < 0) {
442
            fprintf(stderr, "pixel format conversion not handled\n");
443
            goto the_end;
444
        }
445
    } else {
446
        pict = picture2;
447
    }
448

    
449
    /* XXX: resampling could be done before raw format convertion in
450
       some cases to go faster */
451
    /* XXX: only works for YUV420P */
452
    if (ost->video_resample) {
453
        picture = &ost->pict_tmp;
454
        img_resample(ost->img_resample_ctx, picture, pict);
455
    } else {
456
        picture = pict;
457
    }
458

    
459
    /* duplicates frame if needed */
460
    /* XXX: pb because no interleaving */
461
    for(i=0;i<nb;i++) {
462
        if (enc->codec_id != CODEC_ID_RAWVIDEO) {
463
            /* handles sameq here. This is not correct because it may
464
               not be a global option */
465
            if (same_quality) {
466
                enc->quality = dec->quality;
467
            }
468
            ret = avcodec_encode_video(enc, 
469
                                       video_buffer, sizeof(video_buffer), 
470
                                       picture);
471
            s->format->write_packet(s, ost->index, video_buffer, ret);
472
        } else {
473
            write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
474
        }
475
    }
476
    the_end:
477
    if (buf)
478
        free(buf);
479
    if (buf1)
480
        free(buf1);
481
}
482

    
483
static void hex_dump(UINT8 *buf, int size)
484
{
485
    int len, i, j, c;
486

    
487
    for(i=0;i<size;i+=16) {
488
        len = size - i;
489
        if (len > 16)
490
            len = 16;
491
        printf("%08x ", i);
492
        for(j=0;j<16;j++) {
493
            if (j < len)
494
                printf(" %02x", buf[i+j]);
495
            else
496
                printf("   ");
497
        }
498
        printf(" ");
499
        for(j=0;j<len;j++) {
500
            c = buf[i+j];
501
            if (c < ' ' || c > '~')
502
                c = '.';
503
            printf("%c", c);
504
        }
505
        printf("\n");
506
    }
507
}
508

    
509
/*
510
 * The following code is the main loop of the file converter
511
 */
512
static int av_encode(AVFormatContext **output_files,
513
                     int nb_output_files,
514
                     AVFormatContext **input_files,
515
                     int nb_input_files,
516
                     AVStreamMap *stream_maps, int nb_stream_maps)
517
{
518
    int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
519
    AVFormatContext *is, *os;
520
    AVCodecContext *codec, *icodec;
521
    AVOutputStream *ost, **ost_table = NULL;
522
    AVInputStream *ist, **ist_table = NULL;
523
    INT64 min_pts, start_time;
524
    AVInputFile *file_table;
525

    
526
    file_table= (AVInputFile*) malloc(nb_input_files * sizeof(AVInputFile));
527
    if (!file_table)
528
        goto fail;
529

    
530
    memset(file_table, 0, sizeof(file_table));
531
    
532
    /* input stream init */
533
    j = 0;
534
    for(i=0;i<nb_input_files;i++) {
535
        is = input_files[i];
536
        file_table[i].ist_index = j;
537
        j += is->nb_streams;
538
    }
539
    nb_istreams = j;
540

    
541
    ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
542
    if (!ist_table)
543
        goto fail;
544
    
545
    for(i=0;i<nb_istreams;i++) {
546
        ist = av_mallocz(sizeof(AVInputStream));
547
        if (!ist)
548
            goto fail;
549
        ist_table[i] = ist;
550
    }
551
    j = 0;
552
    for(i=0;i<nb_input_files;i++) {
553
        is = input_files[i];
554
        for(k=0;k<is->nb_streams;k++) {
555
            ist = ist_table[j++];
556
            ist->st = is->streams[k];
557
            ist->file_index = i;
558
            ist->index = k;
559
            ist->discard = 1; /* the stream is discarded by default
560
                                 (changed later) */
561
        }
562
    }
563

    
564
    /* output stream init */
565
    nb_ostreams = 0;
566
    for(i=0;i<nb_output_files;i++) {
567
        os = output_files[i];
568
        nb_ostreams += os->nb_streams;
569
    }
570
    if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
571
        fprintf(stderr, "Number of stream maps must match number of output streams\n");
572
        exit(1);
573
    }
574

    
575
    ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
576
    if (!ost_table)
577
        goto fail;
578
    for(i=0;i<nb_ostreams;i++) {
579
        ost = av_mallocz(sizeof(AVOutputStream));
580
        if (!ost)
581
            goto fail;
582
        ost_table[i] = ost;
583
    }
584
    
585
    n = 0;
586
    for(k=0;k<nb_output_files;k++) {
587
        os = output_files[k];
588
        for(i=0;i<os->nb_streams;i++) {
589
            int found;
590
            ost = ost_table[n++];
591
            ost->file_index = k;
592
            ost->index = i;
593
            ost->st = os->streams[i];
594
            if (nb_stream_maps > 0) {
595
                ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + 
596
                    stream_maps[n-1].stream_index;
597
            } else {
598
                /* get corresponding input stream index : we select the first one with the right type */
599
                found = 0;
600
                for(j=0;j<nb_istreams;j++) {
601
                    ist = ist_table[j];
602
                    if (ist->discard && 
603
                        ist->st->codec.codec_type == ost->st->codec.codec_type) {
604
                        ost->source_index = j;
605
                        found = 1;
606
                    }
607
                }
608
                
609
                if (!found) {
610
                    /* try again and reuse existing stream */
611
                    for(j=0;j<nb_istreams;j++) {
612
                        ist = ist_table[j];
613
                        if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
614
                            ost->source_index = j;
615
                            found = 1;
616
                        }
617
                    }
618
                    if (!found) {
619
                        fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
620
                                ost->file_index, ost->index);
621
                        exit(1);
622
                    }
623
                }
624
            }
625
            ist = ist_table[ost->source_index];
626
            ist->discard = 0;
627
        }
628
    }
629

    
630
    /* dump the stream mapping */
631
    fprintf(stderr, "Stream mapping:\n");
632
    for(i=0;i<nb_ostreams;i++) {
633
        ost = ost_table[i];
634
        fprintf(stderr, "  Stream #%d.%d -> #%d.%d\n",
635
                ist_table[ost->source_index]->file_index,
636
                ist_table[ost->source_index]->index,
637
                ost->file_index, 
638
                ost->index);
639
    }
640

    
641
    /* for each output stream, we compute the right encoding parameters */
642
    for(i=0;i<nb_ostreams;i++) {
643
        ost = ost_table[i];
644
        ist = ist_table[ost->source_index];
645

    
646
        codec = &ost->st->codec;
647
        icodec = &ist->st->codec;
648

    
649
        switch(codec->codec_type) {
650
        case CODEC_TYPE_AUDIO:
651
            /* check if same codec with same parameters. If so, no
652
               reencoding is needed */
653
            if (codec->codec_id == icodec->codec_id &&
654
                codec->bit_rate == icodec->bit_rate &&
655
                codec->sample_rate == icodec->sample_rate &&
656
                codec->channels == icodec->channels) {
657
                /* no reencoding */
658
            } else {
659
                if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
660
                    goto fail;
661

    
662
                if (codec->channels == icodec->channels &&
663
                    codec->sample_rate == icodec->sample_rate) {
664
                    ost->audio_resample = 0;
665
                } else {
666
                    ost->audio_resample = 1;
667
                    ost->resample = audio_resample_init(codec->channels, icodec->channels,
668
                                                        codec->sample_rate, 
669
                                                        icodec->sample_rate);
670
                }
671
                ist->decoding_needed = 1;
672
                ost->encoding_needed = 1;
673
            }
674
            break;
675
        case CODEC_TYPE_VIDEO:
676
            /* check if same codec with same parameters. If so, no
677
               reencoding is needed */
678
            if (codec->codec_id == icodec->codec_id &&
679
                codec->bit_rate == icodec->bit_rate &&
680
                codec->frame_rate == icodec->frame_rate &&
681
                codec->width == icodec->width &&
682
                codec->height == icodec->height) {
683
                /* no reencoding */
684
            } else {
685
                if (codec->width == icodec->width &&
686
                    codec->height == icodec->height) {
687
                    ost->video_resample = 0;
688
                } else {
689
                    UINT8 *buf;
690
                    ost->video_resample = 1;
691
                    buf = malloc((codec->width * codec->height * 3) / 2);
692
                    if (!buf)
693
                        goto fail;
694
                    ost->pict_tmp.data[0] = buf;
695
                    ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
696
                    ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
697
                    ost->pict_tmp.linesize[0] = codec->width;
698
                    ost->pict_tmp.linesize[1] = codec->width / 2;
699
                    ost->pict_tmp.linesize[2] = codec->width / 2;
700

    
701
                    ost->img_resample_ctx = img_resample_init( 
702
                                      ost->st->codec.width, ost->st->codec.height,
703
                                      ist->st->codec.width, ist->st->codec.height);
704
                }
705
                ost->encoding_needed = 1;
706
                ist->decoding_needed = 1;
707
            }
708
            break;
709
        }
710
    }
711

    
712
    /* open each encoder */
713
    for(i=0;i<nb_ostreams;i++) {
714
        ost = ost_table[i];
715
        if (ost->encoding_needed) {
716
            AVCodec *codec;
717
            codec = avcodec_find_encoder(ost->st->codec.codec_id);
718
            if (!codec) {
719
                fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", 
720
                        ost->file_index, ost->index);
721
                exit(1);
722
            }
723
            if (avcodec_open(&ost->st->codec, codec) < 0) {
724
                fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", 
725
                        ost->file_index, ost->index);
726
                exit(1);
727
            }
728
        }
729
    }
730

    
731
    /* open each decoder */
732
    for(i=0;i<nb_istreams;i++) {
733
        ist = ist_table[i];
734
        if (ist->decoding_needed) {
735
            AVCodec *codec;
736
            codec = avcodec_find_decoder(ist->st->codec.codec_id);
737
            if (!codec) {
738
                fprintf(stderr, "Unsupported codec for input stream #%d.%d\n", 
739
                        ist->file_index, ist->index);
740
                exit(1);
741
            }
742
            if (avcodec_open(&ist->st->codec, codec) < 0) {
743
                fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", 
744
                        ist->file_index, ist->index);
745
                exit(1);
746
            }
747
        }
748
    }
749

    
750
    /* init pts */
751
    for(i=0;i<nb_istreams;i++) {
752
        ist = ist_table[i];
753
        ist->pts = 0;
754
        ist->frame_number = 0;
755
    }
756
    
757
    /* compute buffer size max (should use a complete heuristic) */
758
    for(i=0;i<nb_input_files;i++) {
759
        file_table[i].buffer_size_max = 2048;
760
    }
761

    
762
    /* open files and write file headers */
763
    for(i=0;i<nb_output_files;i++) {
764
        os = output_files[i];
765
        if (os->format->write_header(os) < 0) {
766
            fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
767
            ret = -EINVAL;
768
            goto fail;
769
        }
770
    }
771

    
772
#ifndef CONFIG_WIN32
773
    if (!do_play) {
774
        fprintf(stderr, "Press [q] to stop encoding\n");
775
    } else {
776
        fprintf(stderr, "Press [q] to stop playing\n");
777
    }
778
#endif
779
    term_init();
780

    
781
    start_time = gettime();
782
    min_pts = 0;
783
    for(;;) {
784
        int file_index, ist_index;
785
        AVPacket pkt;
786
        UINT8 *ptr;
787
        int len;
788
        UINT8 *data_buf;
789
        int data_size, got_picture;
790
        AVPicture picture;
791
        short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
792

    
793
    redo:
794
        /* if 'q' pressed, exits */
795
        if (read_key() == 'q')
796
            break;
797

    
798
        /* select the input file with the smallest pts */
799
        file_index = -1;
800
        min_pts = MAXINT64;
801
        for(i=0;i<nb_istreams;i++) {
802
            ist = ist_table[i];
803
            if (!ist->discard && !file_table[ist->file_index].eof_reached && ist->pts < min_pts) {
804
                min_pts = ist->pts;
805
                file_index = ist->file_index;
806
            }
807
        }
808
        /* if none, if is finished */
809
        if (file_index < 0)
810
            break;
811
        /* finish if recording time exhausted */
812
        if (recording_time > 0 && min_pts >= recording_time)
813
            break;
814
        /* read a packet from it and output it in the fifo */
815
        is = input_files[file_index];
816
        if (av_read_packet(is, &pkt) < 0) {
817
            file_table[file_index].eof_reached = 1;
818
            continue;
819
        }
820
        ist_index = file_table[file_index].ist_index + pkt.stream_index;
821
        ist = ist_table[ist_index];
822
        if (ist->discard) {
823
            continue;
824
        }
825

    
826
        if (do_hex_dump) {
827
            printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
828
            hex_dump(pkt.data, pkt.size);
829
        }
830

    
831
        //        printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
832

    
833
        len = pkt.size;
834
        ptr = pkt.data;
835
        while (len > 0) {
836

    
837
            /* decode the packet if needed */
838
            data_buf = NULL; /* fail safe */
839
            data_size = 0;
840
            if (ist->decoding_needed) {
841
                switch(ist->st->codec.codec_type) {
842
                case CODEC_TYPE_AUDIO:
843
                    /* XXX: could avoid copy if PCM 16 bits with same
844
                       endianness as CPU */
845
                    ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
846
                                               ptr, len);
847
                    if (ret < 0)
848
                        goto fail_decode;
849
                    if (data_size == 0) {
850
                        /* no audio frame */
851
                        ptr += ret;
852
                        len -= ret;
853
                        continue;
854
                    }
855
                    data_buf = (UINT8 *)samples;
856
                    break;
857
                case CODEC_TYPE_VIDEO:
858
                    if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
859
                        int size;
860
                        size = (ist->st->codec.width * ist->st->codec.height);
861
                        avpicture_fill(&picture, ptr, 
862
                                     ist->st->codec.pix_fmt,
863
                                     ist->st->codec.width,
864
                                     ist->st->codec.height);
865
                        ret = len;
866
                    } else {
867
                        data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
868
                        ret = avcodec_decode_video(&ist->st->codec, 
869
                                                   &picture, &got_picture, ptr, len);
870
                        if (ret < 0) {
871
                        fail_decode:
872
                            fprintf(stderr, "Error while decoding stream #%d.%d\n",
873
                                    ist->file_index, ist->index);
874
                            av_free_packet(&pkt);
875
                            goto redo;
876
                        }
877
                        if (!got_picture) {
878
                            /* no picture yet */
879
                            ptr += ret;
880
                            len -= ret;
881
                            continue;
882
                        }
883
                    }
884
                    break;
885
                default:
886
                    goto fail_decode;
887
                }
888
            } else {
889
                data_buf = ptr;
890
                data_size = len;
891
                ret = len;
892
            }
893
            /* update pts */
894
            switch(ist->st->codec.codec_type) {
895
            case CODEC_TYPE_AUDIO:
896
                ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate;
897
                ist->sample_index += data_size / (2 * ist->st->codec.channels);
898
                break;
899
            case CODEC_TYPE_VIDEO:
900
                ist->frame_number++;
901
                ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) / 
902
                    ist->st->codec.frame_rate;
903
                break;
904
            }
905
            ptr += ret;
906
            len -= ret;
907

    
908
            /* transcode raw format, encode packets and output them */
909
            
910
            for(i=0;i<nb_ostreams;i++) {
911
                ost = ost_table[i];
912
                if (ost->source_index == ist_index) {
913
                    os = output_files[ost->file_index];
914

    
915
                    if (ost->encoding_needed) {
916
                        switch(ost->st->codec.codec_type) {
917
                        case CODEC_TYPE_AUDIO:
918
                            do_audio_out(os, ost, ist, data_buf, data_size);
919
                            break;
920
                        case CODEC_TYPE_VIDEO:
921
                            do_video_out(os, ost, ist, &picture);
922
                            break;
923
                        }
924
                    } else {
925
                        /* no reencoding needed : output the packet directly */
926
                        os->format->write_packet(os, ost->index, data_buf, data_size);
927
                    }
928
                }
929
            }
930
        }
931
        av_free_packet(&pkt);
932
        
933
        /* dump report by using the first video and audio streams */
934
        {
935
            char buf[1024];
936
            AVFormatContext *oc;
937
            INT64 total_size, ti;
938
            AVCodecContext *enc;
939
            int frame_number, vid;
940
            double bitrate, ti1;
941
            static INT64 last_time;
942

    
943
            if ((min_pts - last_time) >= 500000) {
944
                last_time = min_pts;
945
                
946
                oc = output_files[0];
947
                
948
                total_size = url_ftell(&oc->pb);
949
                
950
                buf[0] = '\0';
951
                ti = MAXINT64;
952
                vid = 0;
953
                for(i=0;i<nb_ostreams;i++) {
954
                    ost = ost_table[i];
955
                    enc = &ost->st->codec;
956
                    ist = ist_table[ost->source_index];
957
                    if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
958
                        frame_number = ist->frame_number;
959
                        sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
960
                                frame_number, enc->quality);
961
                        vid = 1;
962
                    }
963
                    /* compute min pts value */
964
                    if (!ist->discard && ist->pts < ti) {
965
                        ti = ist->pts;
966
                    }
967
                }
968

    
969
                ti1 = (double)ti / 1000000.0;
970
                if (ti1 < 0.1)
971
                    ti1 = 0.1;
972
                bitrate = (double)(total_size * 8) / ti1 / 1000.0;
973

    
974
                sprintf(buf + strlen(buf), 
975
                        "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
976
                        (double)total_size / 1024, ti1, bitrate);
977
                
978
                fprintf(stderr, "%s    \r", buf);
979
                fflush(stderr);
980
            }
981
        }
982
    }
983
    term_exit();
984

    
985
    /* dump report by using the first video and audio streams */
986
    {
987
        char buf[1024];
988
        AVFormatContext *oc;
989
        INT64 total_size, ti;
990
        AVCodecContext *enc;
991
        int frame_number, vid;
992
        double bitrate, ti1;
993

    
994
        oc = output_files[0];
995
        
996
        total_size = url_ftell(&oc->pb);
997
        
998
        buf[0] = '\0';
999
        ti = MAXINT64;
1000
        vid = 0;
1001
        for(i=0;i<nb_ostreams;i++) {
1002
            ost = ost_table[i];
1003
            enc = &ost->st->codec;
1004
            ist = ist_table[ost->source_index];
1005
            if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1006
                frame_number = ist->frame_number;
1007
                sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1008
                        frame_number, enc->quality);
1009
                vid = 1;
1010
            }
1011
            /* compute min pts value */
1012
            if (!ist->discard && ist->pts < ti) {
1013
                ti = ist->pts;
1014
            }
1015
        }
1016
        
1017
        ti1 = ti / 1000000.0;
1018
        if (ti1 < 0.1)
1019
            ti1 = 0.1;
1020
        bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1021
        
1022
        sprintf(buf + strlen(buf), 
1023
                "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1024
                (double)total_size / 1024, ti1, bitrate);
1025
        
1026
        fprintf(stderr, "%s    \n", buf);
1027
    }
1028
    /* close each encoder */
1029
    for(i=0;i<nb_ostreams;i++) {
1030
        ost = ost_table[i];
1031
        if (ost->encoding_needed) {
1032
            avcodec_close(&ost->st->codec);
1033
        }
1034
    }
1035
    
1036
    /* close each decoder */
1037
    for(i=0;i<nb_istreams;i++) {
1038
        ist = ist_table[i];
1039
        if (ist->decoding_needed) {
1040
            avcodec_close(&ist->st->codec);
1041
        }
1042
    }
1043
    
1044

    
1045
    /* write the trailer if needed and close file */
1046
    for(i=0;i<nb_output_files;i++) {
1047
        os = output_files[i];
1048
        os->format->write_trailer(os);
1049
    }
1050
    /* finished ! */
1051
    
1052
    ret = 0;
1053
 fail1:
1054
    free(file_table);
1055

    
1056
    if (ist_table) {
1057
        for(i=0;i<nb_istreams;i++) {
1058
            ist = ist_table[i];
1059
            if (ist) {
1060
                free(ist);
1061
            }
1062
        }
1063
        free(ist_table);
1064
    }
1065
    if (ost_table) {
1066
        for(i=0;i<nb_ostreams;i++) {
1067
            ost = ost_table[i];
1068
            if (ost) {
1069
                if (ost->pict_tmp.data[0])
1070
                    free(ost->pict_tmp.data[0]);
1071
                if (ost->video_resample)
1072
                    img_resample_close(ost->img_resample_ctx);
1073
                if (ost->audio_resample)
1074
                    audio_resample_close(ost->resample);
1075
                free(ost);
1076
            }
1077
        }
1078
        free(ost_table);
1079
    }
1080
    return ret;
1081
 fail:
1082
    ret = -ENOMEM;
1083
    goto fail1;
1084
}
1085

    
1086
#if 0
1087
int file_read(const char *filename)
1088
{
1089
    URLContext *h;
1090
    unsigned char buffer[1024];
1091
    int len, i;
1092

1093
    if (url_open(&h, filename, O_RDONLY) < 0) {
1094
        printf("could not open '%s'\n", filename);
1095
        return -1;
1096
    }
1097
    for(;;) {
1098
        len = url_read(h, buffer, sizeof(buffer));
1099
        if (len <= 0)
1100
            break;
1101
        for(i=0;i<len;i++) putchar(buffer[i]);
1102
    }
1103
    url_close(h);
1104
    return 0;
1105
}
1106
#endif
1107

    
1108
void show_licence(void)
1109
{
1110
    printf(
1111
    "ffmpeg version " FFMPEG_VERSION "\n"
1112
    "Copyright (c) 2000,2001 Gerard Lantau\n"
1113
    "This program is free software; you can redistribute it and/or modify\n"
1114
    "it under the terms of the GNU General Public License as published by\n"
1115
    "the Free Software Foundation; either version 2 of the License, or\n"
1116
    "(at your option) any later version.\n"
1117
    "\n"
1118
    "This program is distributed in the hope that it will be useful,\n"
1119
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1120
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1121
    "GNU General Public License for more details.\n"
1122
    "\n"
1123
    "You should have received a copy of the GNU General Public License\n"
1124
    "along with this program; if not, write to the Free Software\n"
1125
    "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
1126
    );
1127
    exit(1);
1128
}
1129

    
1130
void opt_format(const char *arg)
1131
{
1132
    AVFormat *f;
1133
    f = first_format;
1134
    while (f != NULL && strcmp(f->name, arg) != 0) f = f->next;
1135
    if (f == NULL) {
1136
        fprintf(stderr, "Invalid format: %s\n", arg);
1137
        exit(1);
1138
    }
1139
    file_format = f;
1140
}
1141

    
1142
void opt_video_bitrate(const char *arg)
1143
{
1144
    video_bit_rate = atoi(arg) * 1000;
1145
}
1146

    
1147
void opt_frame_rate(const char *arg)
1148
{
1149
    frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
1150
}
1151

    
1152
void opt_frame_size(const char *arg)
1153
{
1154
    parse_image_size(&frame_width, &frame_height, arg);
1155
    if (frame_width <= 0 || frame_height <= 0) {
1156
        fprintf(stderr, "Incorrect frame size\n");
1157
        exit(1);
1158
    }
1159
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1160
        fprintf(stderr, "Frame size must be a multiple of 2\n");
1161
        exit(1);
1162
    }
1163
}
1164

    
1165
void opt_gop_size(const char *arg)
1166
{
1167
    gop_size = atoi(arg);
1168
}
1169

    
1170
void opt_qscale(const char *arg)
1171
{
1172
    video_qscale = atoi(arg);
1173
    if (video_qscale < 0 ||
1174
        video_qscale > 31) {
1175
        fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1176
        exit(1);
1177
    }
1178
}
1179

    
1180

    
1181
void opt_audio_bitrate(const char *arg)
1182
{
1183
    audio_bit_rate = atoi(arg) * 1000;
1184
}
1185

    
1186
void opt_audio_rate(const char *arg)
1187
{
1188
    audio_sample_rate = atoi(arg);
1189
}
1190

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

    
1196
#ifdef CONFIG_GRAB
1197
void opt_video_device(const char *arg)
1198
{
1199
    v4l_device = strdup(arg);
1200
}
1201

    
1202
void opt_audio_device(const char *arg)
1203
{
1204
    audio_device = strdup(arg);
1205
}
1206
#endif
1207

    
1208
void opt_audio_codec(const char *arg)
1209
{
1210
    AVCodec *p;
1211

    
1212
    p = first_avcodec;
1213
    while (p) {
1214
        if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1215
            break;
1216
        p = p->next;
1217
    }
1218
    if (p == NULL) {
1219
        fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1220
        exit(1);
1221
    } else {
1222
        audio_codec_id = p->id;
1223
    }
1224
}
1225

    
1226
const char *motion_str[] = {
1227
    "zero",
1228
    "full",
1229
    "log",
1230
    "phods",
1231
    NULL,
1232
};
1233

    
1234
void opt_motion_estimation(const char *arg)
1235
{
1236
    const char **p;
1237
    p = motion_str;
1238
    for(;;) {
1239
        if (!*p) {
1240
            fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1241
            exit(1);
1242
        }
1243
        if (!strcmp(*p, arg))
1244
            break;
1245
        p++;
1246
    }
1247
    motion_estimation_method = p - motion_str;
1248
}
1249

    
1250
void opt_video_codec(const char *arg)
1251
{
1252
    AVCodec *p;
1253

    
1254
    p = first_avcodec;
1255
    while (p) {
1256
        if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1257
            break;
1258
        p = p->next;
1259
    }
1260
    if (p == NULL) {
1261
        fprintf(stderr, "Unknown video codec '%s'\n", arg);
1262
        exit(1);
1263
    } else {
1264
        video_codec_id = p->id;
1265
    }
1266
}
1267

    
1268
void opt_map(const char *arg)
1269
{
1270
    AVStreamMap *m;
1271
    const char *p;
1272

    
1273
    p = arg;
1274
    m = &stream_maps[nb_stream_maps++];
1275

    
1276
    m->file_index = strtol(arg, (char **)&p, 0);
1277
    if (*p)
1278
        p++;
1279
    m->stream_index = strtol(arg, (char **)&p, 0);
1280
}
1281

    
1282
void opt_recording_time(const char *arg)
1283
{
1284
    recording_time = parse_date(arg, 1);
1285
}
1286

    
1287
/* return the number of packet read to find the codec parameters */
1288
int find_codec_parameters(AVFormatContext *ic)
1289
{
1290
    int val, i, count, ret, got_picture, size;
1291
    AVCodec *codec;
1292
    AVCodecContext *enc;
1293
    AVStream *st;
1294
    AVPacket *pkt;
1295
    AVPicture picture;
1296
    AVPacketList *pktl, **ppktl;
1297
    short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
1298
    UINT8 *ptr;
1299

    
1300
    count = 0;
1301
    ppktl = &ic->packet_buffer;
1302
    for(;;) {
1303
        for(i=0;i<ic->nb_streams;i++) {
1304
            enc = &ic->streams[i]->codec;
1305
            
1306
            switch(enc->codec_type) {
1307
            case CODEC_TYPE_AUDIO:
1308
                val = enc->sample_rate;
1309
                break;
1310
            case CODEC_TYPE_VIDEO:
1311
                val = enc->width;
1312
                break;
1313
            default:
1314
                val = 1;
1315
                break;
1316
            }
1317
            /* if no parameters supplied, then we should read it from
1318
               the stream */
1319
            if (val == 0)
1320
                break;
1321
        }
1322
        if (i == ic->nb_streams) {
1323
            ret = count;
1324
            break;
1325
        }
1326

    
1327
        if (count == 0) {
1328
            /* open each codec */
1329
            for(i=0;i<ic->nb_streams;i++) {
1330
                st = ic->streams[i];
1331
                codec = avcodec_find_decoder(st->codec.codec_id);
1332
                if (codec == NULL) {
1333
                    ret = -1;
1334
                    goto the_end;
1335
                }
1336
                avcodec_open(&st->codec, codec);
1337
            }
1338
        }
1339
        pktl = av_mallocz(sizeof(AVPacketList));
1340
        if (!pktl) {
1341
            ret = -1;
1342
            break;
1343
        }
1344

    
1345
        /* add the packet in the buffered packet list */
1346
        *ppktl = pktl;
1347
        ppktl = &pktl->next;
1348

    
1349
        pkt = &pktl->pkt;
1350
        if (ic->format->read_packet(ic, pkt) < 0) {
1351
            ret = -1;
1352
            break;
1353
        }
1354
        st = ic->streams[pkt->stream_index];
1355

    
1356
        /* decode the data and update codec parameters */
1357
        ptr = pkt->data;
1358
        size = pkt->size;
1359
        while (size > 0) {
1360
            switch(st->codec.codec_type) {
1361
            case CODEC_TYPE_VIDEO:
1362
                ret = avcodec_decode_video(&st->codec, &picture, &got_picture, ptr, size);
1363
                break;
1364
            case CODEC_TYPE_AUDIO:
1365
                ret = avcodec_decode_audio(&st->codec, samples, &got_picture, ptr, size);
1366
                break;
1367
            default:
1368
                ret = -1;
1369
                break;
1370
            }
1371
            if (ret < 0) {
1372
                ret = -1;
1373
                goto the_end;
1374
            }
1375
            if (got_picture)
1376
                break;
1377
            ptr += ret;
1378
            size -= ret;
1379
        }
1380

    
1381
        count++;
1382
    }
1383
 the_end:
1384
    if (count > 0) {
1385
        /* close each codec */
1386
        for(i=0;i<ic->nb_streams;i++) {
1387
            st = ic->streams[i];
1388
            avcodec_close(&st->codec);
1389
        }
1390
    }
1391
    return ret;
1392
}
1393

    
1394
int filename_number_test(const char *filename)
1395
{
1396
    char buf[1024];
1397

    
1398
    if (get_frame_filename(buf, sizeof(buf), filename, 1) < 0) {
1399
        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
1400
                "Use '%%d' to specify the image number:\n"
1401
                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
1402
                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", 
1403
                filename);
1404
        return -1;
1405
    } else {
1406
        return 0;
1407
    }
1408
}
1409

    
1410
void opt_input_file(const char *filename)
1411
{
1412
    AVFormatContext *ic;
1413
    AVFormatParameters params, *ap = &params;
1414
    URLFormat url_format;
1415
    AVFormat *fmt;
1416
    int err, i, ret;
1417

    
1418
    ic = av_mallocz(sizeof(AVFormatContext));
1419
    strcpy(ic->filename, filename);
1420
    /* first format guess to know if we must open file */
1421
    fmt = file_format;
1422
    if (!fmt) 
1423
        fmt = guess_format(NULL, filename, NULL);
1424
    
1425
    if (fmt == NULL || !(fmt->flags & AVFMT_NOFILE)) {
1426
        /* open file */
1427
        if (url_fopen(&ic->pb, filename, URL_RDONLY) < 0) {
1428
            fprintf(stderr, "Could not open '%s'\n", filename);
1429
            exit(1);
1430
        }
1431
    
1432
        /* find format and set default parameters */
1433
        fmt = file_format;
1434
        err = url_getformat(url_fileno(&ic->pb), &url_format);
1435
        if (err >= 0) {
1436
            if (!fmt)
1437
                fmt = guess_format(url_format.format_name, NULL, NULL);
1438
            ap->sample_rate = url_format.sample_rate;
1439
            ap->frame_rate = url_format.frame_rate;
1440
            ap->channels = url_format.channels;
1441
            ap->width = url_format.width;
1442
            ap->height = url_format.height;
1443
            ap->pix_fmt = url_format.pix_fmt;
1444
        } else {
1445
            if (!fmt)
1446
                fmt = guess_format(NULL, filename, NULL);
1447
            memset(ap, 0, sizeof(*ap));
1448
        }
1449
    } else {
1450
        memset(ap, 0, sizeof(*ap));
1451
    }
1452

    
1453
    if (!fmt || !fmt->read_header) {
1454
        fprintf(stderr, "%s: Unknown file format\n", filename);
1455
        exit(1);
1456
    }
1457
    ic->format = fmt;
1458

    
1459
    /* get default parameters from command line */
1460
    if (!ap->sample_rate)
1461
        ap->sample_rate = audio_sample_rate;
1462
    if (!ap->channels)
1463
        ap->channels = audio_channels;
1464

    
1465
    if (!ap->frame_rate)
1466
        ap->frame_rate = frame_rate;
1467
    if (!ap->width)
1468
        ap->width = frame_width;
1469
    if (!ap->height)
1470
        ap->height = frame_height;
1471

    
1472
    /* check filename in case of an image number is expected */
1473
    if (ic->format->flags & AVFMT_NEEDNUMBER) {
1474
        if (filename_number_test(ic->filename) < 0)
1475
            exit(1);
1476
    }
1477
    
1478
    err = ic->format->read_header(ic, ap);
1479
    if (err < 0) {
1480
        fprintf(stderr, "%s: Error while parsing header\n", filename);
1481
        exit(1);
1482
    }
1483
    
1484
    /* If not enough info for the codecs, we decode the first frames
1485
       to get it. (used in mpeg case for example) */
1486
    ret = find_codec_parameters(ic);
1487
    if (ret < 0) {
1488
        fprintf(stderr, "%s: could not find codec parameters\n", filename);
1489
        exit(1);
1490
    }
1491

    
1492
    /* update the current parameters so that they match the one of the input stream */
1493
    for(i=0;i<ic->nb_streams;i++) {
1494
        AVCodecContext *enc = &ic->streams[i]->codec;
1495
        switch(enc->codec_type) {
1496
        case CODEC_TYPE_AUDIO:
1497
            audio_channels = enc->channels;
1498
            audio_sample_rate = enc->sample_rate;
1499
            break;
1500
        case CODEC_TYPE_VIDEO:
1501
            frame_height = enc->height;
1502
            frame_width = enc->width;
1503
            frame_rate = enc->frame_rate;
1504
            break;
1505
        }
1506
    }
1507
    
1508
    input_files[nb_input_files] = ic;
1509
    /* dump the file content */
1510
    dump_format(ic, nb_input_files, filename, 0);
1511
    nb_input_files++;
1512
    file_format = NULL;
1513
}
1514

    
1515
void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
1516
{
1517
    int has_video, has_audio, i, j;
1518
    AVFormatContext *ic;
1519

    
1520
    has_video = 0;
1521
    has_audio = 0;
1522
    for(j=0;j<nb_input_files;j++) {
1523
        ic = input_files[j];
1524
        for(i=0;i<ic->nb_streams;i++) {
1525
            AVCodecContext *enc = &ic->streams[i]->codec;
1526
            switch(enc->codec_type) {
1527
            case CODEC_TYPE_AUDIO:
1528
                has_audio = 1;
1529
                break;
1530
            case CODEC_TYPE_VIDEO:
1531
                has_video = 1;
1532
                break;
1533
            }
1534
        }
1535
    }
1536
    *has_video_ptr = has_video;
1537
    *has_audio_ptr = has_audio;
1538
}
1539

    
1540
void opt_output_file(const char *filename)
1541
{
1542
    AVStream *st;
1543
    AVFormatContext *oc;
1544
    int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
1545
    int codec_id;
1546

    
1547
    if (!strcmp(filename, "-"))
1548
        filename = "pipe:";
1549

    
1550
    oc = av_mallocz(sizeof(AVFormatContext));
1551

    
1552
    if (!file_format) {
1553
        file_format = guess_format(NULL, filename, NULL);
1554
        if (!file_format)
1555
            file_format = &mpeg_mux_format;
1556
    }
1557
    
1558
    oc->format = file_format;
1559

    
1560
    if (!strcmp(file_format->name, "ffm") && 
1561
        strstart(filename, "http:", NULL)) {
1562
        /* special case for files sent to ffserver: we get the stream
1563
           parameters from ffserver */
1564
        if (read_ffserver_streams(oc, filename) < 0) {
1565
            fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
1566
            exit(1);
1567
        }
1568
    } else {
1569
        use_video = file_format->video_codec != CODEC_ID_NONE;
1570
        use_audio = file_format->audio_codec != CODEC_ID_NONE;
1571

    
1572
        /* disable if no corresponding type found and at least one
1573
           input file */
1574
        if (nb_input_files > 0) {
1575
            check_audio_video_inputs(&input_has_video, &input_has_audio);
1576
            if (!input_has_video)
1577
                use_video = 0;
1578
            if (!input_has_audio)
1579
                use_audio = 0;
1580
        }
1581

    
1582
        /* manual disable */
1583
        if (audio_disable) {
1584
            use_audio = 0;
1585
        }
1586
        if (video_disable) {
1587
            use_video = 0;
1588
        }
1589
        
1590
        nb_streams = 0;
1591
        if (use_video) {
1592
            AVCodecContext *video_enc;
1593
            
1594
            st = av_mallocz(sizeof(AVStream));
1595
            if (!st) {
1596
                fprintf(stderr, "Could not alloc stream\n");
1597
                exit(1);
1598
            }
1599
            video_enc = &st->codec;
1600

    
1601
            codec_id = file_format->video_codec;
1602
            if (video_codec_id != CODEC_ID_NONE)
1603
                codec_id = video_codec_id;
1604

    
1605
            video_enc->codec_id = codec_id;
1606
            video_enc->codec_type = CODEC_TYPE_VIDEO;
1607
            
1608
            video_enc->bit_rate = video_bit_rate;
1609
            video_enc->frame_rate = frame_rate; 
1610
            
1611
            video_enc->width = frame_width;
1612
            video_enc->height = frame_height;
1613
            if (!intra_only)
1614
                video_enc->gop_size = gop_size;
1615
            else
1616
                video_enc->gop_size = 0;
1617
            if (video_qscale || same_quality) {
1618
                video_enc->flags |= CODEC_FLAG_QSCALE;
1619
                video_enc->quality = video_qscale;
1620
            }
1621
            /* XXX: need to find a way to set codec parameters */
1622
            if (oc->format == &ppm_format ||
1623
                oc->format == &ppmpipe_format) {
1624
                video_enc->pix_fmt = PIX_FMT_RGB24;
1625
            }
1626

    
1627
            oc->streams[nb_streams] = st;
1628
            nb_streams++;
1629
        }
1630
    
1631
        if (use_audio) {
1632
            AVCodecContext *audio_enc;
1633

    
1634
            st = av_mallocz(sizeof(AVStream));
1635
            if (!st) {
1636
                fprintf(stderr, "Could not alloc stream\n");
1637
                exit(1);
1638
            }
1639
            audio_enc = &st->codec;
1640
            codec_id = file_format->audio_codec;
1641
            if (audio_codec_id != CODEC_ID_NONE)
1642
                codec_id = audio_codec_id;
1643
            audio_enc->codec_id = codec_id;
1644
            audio_enc->codec_type = CODEC_TYPE_AUDIO;
1645
            
1646
            audio_enc->bit_rate = audio_bit_rate;
1647
            audio_enc->sample_rate = audio_sample_rate;
1648
            audio_enc->channels = audio_channels;
1649
            oc->streams[nb_streams] = st;
1650
            nb_streams++;
1651
        }
1652

    
1653
        oc->nb_streams = nb_streams;
1654

    
1655
        if (!nb_streams) {
1656
            fprintf(stderr, "No audio or video streams available\n");
1657
            exit(1);
1658
        }
1659

    
1660
        if (str_title)
1661
            nstrcpy(oc->title, sizeof(oc->title), str_title);
1662
        if (str_author)
1663
            nstrcpy(oc->author, sizeof(oc->author), str_author);
1664
        if (str_copyright)
1665
            nstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
1666
        if (str_comment)
1667
            nstrcpy(oc->comment, sizeof(oc->comment), str_comment);
1668
    }
1669

    
1670
    output_files[nb_output_files] = oc;
1671
    /* dump the file content */
1672
    dump_format(oc, nb_output_files, filename, 1);
1673
    nb_output_files++;
1674

    
1675
    strcpy(oc->filename, filename);
1676

    
1677
    /* check filename in case of an image number is expected */
1678
    if (oc->format->flags & AVFMT_NEEDNUMBER) {
1679
        if (filename_number_test(oc->filename) < 0)
1680
            exit(1);
1681
    }
1682

    
1683
    if (!(oc->format->flags & AVFMT_NOFILE)) {
1684
        /* test if it already exists to avoid loosing precious files */
1685
        if (!file_overwrite && 
1686
            (strchr(filename, ':') == NULL ||
1687
             strstart(filename, "file:", NULL))) {
1688
            if (url_exist(filename)) {
1689
                int c;
1690
                
1691
                printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
1692
                fflush(stdout);
1693
                c = getchar();
1694
                if (toupper(c) != 'Y') {
1695
                    fprintf(stderr, "Not overwriting - exiting\n");
1696
                    exit(1);
1697
                }
1698
            }
1699
        }
1700
        
1701
        /* open the file */
1702
        if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
1703
            fprintf(stderr, "Could not open '%s'\n", filename);
1704
            exit(1);
1705
        }
1706
    }
1707

    
1708
    /* reset some options */
1709
    file_format = NULL;
1710
    audio_disable = 0;
1711
    video_disable = 0;
1712
    audio_codec_id = CODEC_ID_NONE;
1713
    video_codec_id = CODEC_ID_NONE;
1714
}
1715

    
1716
#ifdef CONFIG_GRAB
1717

    
1718
/* prepare dummy protocols for grab */
1719
void prepare_grab(void)
1720
{
1721
    int has_video, has_audio, i, j;
1722
    AVFormatContext *oc;
1723
    AVFormatContext *ic;
1724
    AVFormatParameters ap1, *ap = &ap1;
1725

    
1726
    /* see if audio/video inputs are needed */
1727
    has_video = 0;
1728
    has_audio = 0;
1729
    memset(ap, 0, sizeof(*ap));
1730
    for(j=0;j<nb_output_files;j++) {
1731
        oc = output_files[j];
1732
        for(i=0;i<oc->nb_streams;i++) {
1733
            AVCodecContext *enc = &oc->streams[i]->codec;
1734
            switch(enc->codec_type) {
1735
            case CODEC_TYPE_AUDIO:
1736
                if (enc->sample_rate > ap->sample_rate)
1737
                    ap->sample_rate = enc->sample_rate;
1738
                if (enc->channels > ap->channels)
1739
                    ap->channels = enc->channels;
1740
                has_audio = 1;
1741
                break;
1742
            case CODEC_TYPE_VIDEO:
1743
                if (enc->width > ap->width)
1744
                    ap->width = enc->width;
1745
                if (enc->height > ap->height)
1746
                    ap->height = enc->height;
1747
                if (enc->frame_rate > ap->frame_rate)
1748
                    ap->frame_rate = enc->frame_rate;
1749
                has_video = 1;
1750
                break;
1751
            }
1752
        }
1753
    }
1754
    
1755
    if (has_video == 0 && has_audio == 0) {
1756
        fprintf(stderr, "Output file must have at least one audio or video stream\n");
1757
        exit(1);
1758
    }
1759
    
1760
    if (has_video) {
1761
        ic = av_open_input_file("", "video_grab_device", 0, ap);
1762
        if (!ic) {
1763
            fprintf(stderr, "Could not open video grab device\n");
1764
            exit(1);
1765
        }
1766
        input_files[nb_input_files] = ic;
1767
        dump_format(ic, nb_input_files, v4l_device, 0);
1768
        nb_input_files++;
1769
    }
1770
    if (has_audio) {
1771
        ic = av_open_input_file("", "audio_device", 0, ap);
1772
        if (!ic) {
1773
            fprintf(stderr, "Could not open audio grab device\n");
1774
            exit(1);
1775
        }
1776
        input_files[nb_input_files] = ic;
1777
        dump_format(ic, nb_input_files, audio_device, 0);
1778
        nb_input_files++;
1779
    }
1780
}
1781

    
1782
#else
1783

    
1784
void prepare_grab(void)
1785
{
1786
    fprintf(stderr, "Must supply at least one input file\n");
1787
    exit(1);
1788
}
1789

    
1790
#endif
1791

    
1792
/* open the necessary output devices for playing */
1793
void prepare_play(void)
1794
{
1795
    file_format = guess_format("audio_device", NULL, NULL);
1796
    if (!file_format) {
1797
        fprintf(stderr, "Could not find audio device\n");
1798
        exit(1);
1799
    }
1800
    
1801
    opt_output_file(audio_device);
1802
}
1803

    
1804

    
1805
#ifndef CONFIG_WIN32
1806
INT64 getutime(void)
1807
{
1808
    struct rusage rusage;
1809

    
1810
    getrusage(RUSAGE_SELF, &rusage);
1811
    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
1812
}
1813
#else
1814
INT64 getutime(void)
1815
{
1816
  return gettime();
1817
}
1818
#endif
1819

    
1820
void show_formats(void)
1821
{
1822
    AVFormat *f;
1823
    URLProtocol *up;
1824
    AVCodec *p;
1825
    const char **pp;
1826

    
1827
    printf("File formats:\n");
1828
    printf("  Encoding:");
1829
    for(f = first_format; f != NULL; f = f->next) {
1830
        if (f->write_header)
1831
            printf(" %s", f->name);
1832
    }
1833
    printf("\n");
1834
    printf("  Decoding:");
1835
    for(f = first_format; f != NULL; f = f->next) {
1836
        if (f->read_header)
1837
            printf(" %s", f->name);
1838
    }
1839
    printf("\n");
1840

    
1841
    printf("Codecs:\n");
1842
    printf("  Encoders:");
1843
    for(p = first_avcodec; p != NULL; p = p->next) {
1844
        if (p->encode)
1845
            printf(" %s", p->name);
1846
    }
1847
    printf("\n");
1848

    
1849
    printf("  Decoders:");
1850
    for(p = first_avcodec; p != NULL; p = p->next) {
1851
        if (p->decode)
1852
            printf(" %s", p->name);
1853
    }
1854
    printf("\n");
1855

    
1856
    printf("Supported file protocols:");
1857
    for(up = first_protocol; up != NULL; up = up->next)
1858
        printf(" %s:", up->name);
1859
    printf("\n");
1860
    
1861
    printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
1862
    printf("Motion estimation methods:");
1863
    pp = motion_str;
1864
    while (*pp) {
1865
        printf(" %s", *pp);
1866
        if ((pp - motion_str) == ME_ZERO) 
1867
            printf("(fastest)");
1868
        else if ((pp - motion_str) == ME_FULL) 
1869
            printf("(slowest)");
1870
        else if ((pp - motion_str) == ME_LOG) 
1871
            printf("(default)");
1872
        pp++;
1873
    }
1874
    printf("\n");
1875
    exit(1);
1876
}
1877

    
1878
void show_help(void)
1879
{
1880
    const char *prog;
1881
    const OptionDef *po;
1882
    int i, expert;
1883
    
1884
    prog = do_play ? "ffplay" : "ffmpeg";
1885

    
1886
    printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001 Gerard Lantau\n", 
1887
           prog);
1888
    
1889
    if (!do_play) {
1890
        printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
1891
               "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
1892
    } else {
1893
        printf("usage: ffplay [options] input_file...\n"
1894
               "Simple audio player\n");
1895
    }
1896
           
1897
    printf("\n"
1898
           "Main options are:\n");
1899
    for(i=0;i<2;i++) {
1900
        if (i == 1)
1901
            printf("\nAdvanced options are:\n");
1902
        for(po = options; po->name != NULL; po++) {
1903
            char buf[64];
1904
            expert = (po->flags & OPT_EXPERT) != 0;
1905
            if (expert == i) {
1906
                strcpy(buf, po->name);
1907
                if (po->flags & HAS_ARG) {
1908
                    strcat(buf, " ");
1909
                    strcat(buf, po->argname);
1910
                }
1911
                printf("-%-17s  %s\n", buf, po->help);
1912
            }
1913
        }
1914
    }
1915

    
1916
    exit(1);
1917
}
1918

    
1919
const OptionDef options[] = {
1920
    { "L", 0, {(void*)show_licence}, "show license" },
1921
    { "h", 0, {(void*)show_help}, "show help" },
1922
    { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
1923
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
1924
    { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
1925
    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
1926
    { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
1927
    { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
1928
    { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
1929
    { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
1930
    { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
1931
    { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
1932
    /* video options */
1933
    { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
1934
    { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
1935
    { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
1936
    { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
1937
    { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
1938
    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
1939
    { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
1940
#ifdef CONFIG_GRAB
1941
    { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video device", "device" },
1942
#endif
1943
    { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" },
1944
    { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method", 
1945
      "method" },
1946
    { "sameq", OPT_BOOL, {(void*)&same_quality}, 
1947
      "use same video quality as source (implies VBR)" },
1948
    /* audio options */
1949
    { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
1950
    { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
1951
    { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
1952
    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
1953
#ifdef CONFIG_GRAB
1954
    { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
1955
#endif
1956
    { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" },
1957
    { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace}, 
1958
      "deinterlace pictures" },
1959
    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark}, 
1960
      "add timings for benchmarking" },
1961
    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump}, 
1962
      "dump each input packet" },
1963

    
1964
    { NULL, },
1965
};
1966

    
1967
int main(int argc, char **argv)
1968
{
1969
    int optindex, i;
1970
    const char *opt, *arg;
1971
    const OptionDef *po;
1972
    INT64 ti;
1973
    
1974
    register_all();
1975

    
1976
    /* detect if invoked as player */
1977
    i = strlen(argv[0]);
1978
    if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
1979
        do_play = 1;
1980

    
1981
    if (argc <= 1)
1982
        show_help();
1983
    
1984
    /* parse options */
1985
    optindex = 1;
1986
    while (optindex < argc) {
1987
        opt = argv[optindex++];
1988
        
1989
        if (opt[0] == '-' && opt[1] != '\0') {
1990
            po = options;
1991
            while (po->name != NULL) {
1992
                if (!strcmp(opt + 1, po->name))
1993
                    break;
1994
                po++;
1995
            }
1996
            if (!po->name) {
1997
                fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
1998
                exit(1);
1999
            }
2000
            arg = NULL;
2001
            if (po->flags & HAS_ARG)
2002
                arg = argv[optindex++];
2003
            if (po->flags & OPT_STRING) {
2004
                char *str;
2005
                str = strdup(arg);
2006
                *po->u.str_arg = str;
2007
            } else if (po->flags & OPT_BOOL) {
2008
                *po->u.int_arg = 1;
2009
            } else {
2010
                po->u.func_arg(arg);
2011
            }
2012
        } else {
2013
            if (!do_play) {
2014
                opt_output_file(opt);
2015
            } else {
2016
                opt_input_file(opt);
2017
            }
2018
        }
2019
    }
2020

    
2021

    
2022
    if (!do_play) {
2023
        /* file converter / grab */
2024
        if (nb_output_files <= 0) {
2025
            fprintf(stderr, "Must supply at least one output file\n");
2026
            exit(1);
2027
        }
2028
        
2029
        if (nb_input_files == 0) {
2030
            prepare_grab();
2031
        }
2032
    } else {
2033
        /* player */
2034
        if (nb_input_files <= 0) {
2035
            fprintf(stderr, "Must supply at least one input file\n");
2036
            exit(1);
2037
        }
2038
        prepare_play();
2039
    }
2040

    
2041
    ti = getutime();
2042
    av_encode(output_files, nb_output_files, input_files, nb_input_files, 
2043
              stream_maps, nb_stream_maps);
2044
    ti = getutime() - ti;
2045
    if (do_benchmark) {
2046
        printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2047
    }
2048

    
2049
    /* close files */
2050
    for(i=0;i<nb_output_files;i++) {
2051
        if (!(output_files[i]->format->flags & AVFMT_NOFILE)) 
2052
            url_fclose(&output_files[i]->pb);
2053
    }
2054
    for(i=0;i<nb_input_files;i++) {
2055
        if (!(input_files[i]->format->flags & AVFMT_NOFILE)) 
2056
            url_fclose(&input_files[i]->pb);
2057
    }
2058

    
2059
    return 0;
2060
}