Statistics
| Branch: | Revision:

ffmpeg / ffmpeg.c @ 55bbad6f

History | View | Annotate | Download (105 KB)

1
/*
2
 * FFmpeg main 
3
 * Copyright (c) 2000-2003 Fabrice Bellard
4
 *
5
 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
7
 * License as published by the Free Software Foundation; either
8
 * version 2 of the License, or (at your option) any later version.
9
 *
10
 * This library 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 GNU
13
 * Lesser General Public License for more details.
14
 *
15
 * You should have received a copy of the GNU Lesser General Public
16
 * License along with this library; if not, write to the Free Software
17
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18
 */
19
#define HAVE_AV_CONFIG_H
20
#include "avformat.h"
21
#include "framehook.h"
22

    
23
#ifndef CONFIG_WIN32
24
#include <unistd.h>
25
#include <fcntl.h>
26
#include <sys/ioctl.h>
27
#include <sys/time.h>
28
#include <termios.h>
29
#include <sys/resource.h>
30
#include <signal.h>
31
#endif
32
#ifdef CONFIG_OS2
33
#include <sys/types.h>
34
#include <sys/select.h>
35
#include <stdlib.h>
36
#endif
37
#include <time.h>
38

    
39
#include "cmdutils.h"
40

    
41
#if !defined(INFINITY) && defined(HUGE_VAL)
42
#define INFINITY HUGE_VAL
43
#endif
44

    
45
/* select an input stream for an output stream */
46
typedef struct AVStreamMap {
47
    int file_index;
48
    int stream_index;
49
} AVStreamMap;
50

    
51
extern const OptionDef options[];
52

    
53
static void show_help(void);
54
static void show_license(void);
55

    
56
#define MAX_FILES 20
57

    
58
static AVFormatContext *input_files[MAX_FILES];
59
static int nb_input_files = 0;
60

    
61
static AVFormatContext *output_files[MAX_FILES];
62
static int nb_output_files = 0;
63

    
64
static AVStreamMap stream_maps[MAX_FILES];
65
static int nb_stream_maps;
66

    
67
static AVInputFormat *file_iformat;
68
static AVOutputFormat *file_oformat;
69
static AVImageFormat *image_format;
70
static int frame_width  = 160;
71
static int frame_height = 128;
72
static float frame_aspect_ratio = 0;
73
static enum PixelFormat frame_pix_fmt = PIX_FMT_YUV420P;
74
static int frame_topBand  = 0;
75
static int frame_bottomBand = 0;
76
static int frame_leftBand  = 0;
77
static int frame_rightBand = 0;
78
static int frame_rate = 25;
79
static int frame_rate_base = 1;
80
static int video_bit_rate = 200*1000;
81
static int video_bit_rate_tolerance = 4000*1000;
82
static float video_qscale = 0;
83
static int video_qmin = 2;
84
static int video_qmax = 31;
85
static int video_mb_qmin = 2;
86
static int video_mb_qmax = 31;
87
static int video_qdiff = 3;
88
static float video_qblur = 0.5;
89
static float video_qcomp = 0.5;
90
static uint16_t *intra_matrix = NULL;
91
static uint16_t *inter_matrix = NULL;
92
#if 0 //experimental, (can be removed)
93
static float video_rc_qsquish=1.0;
94
static float video_rc_qmod_amp=0;
95
static int video_rc_qmod_freq=0;
96
#endif
97
static char *video_rc_override_string=NULL;
98
static char *video_rc_eq="tex^qComp";
99
static int video_rc_buffer_size=0;
100
static float video_rc_buffer_aggressivity=1.0;
101
static int video_rc_max_rate=0;
102
static int video_rc_min_rate=0;
103
static float video_rc_initial_cplx=0;
104
static float video_b_qfactor = 1.25;
105
static float video_b_qoffset = 1.25;
106
static float video_i_qfactor = -0.8;
107
static float video_i_qoffset = 0.0;
108
static int me_method = ME_EPZS;
109
static int video_disable = 0;
110
static int video_codec_id = CODEC_ID_NONE;
111
static int same_quality = 0;
112
static int b_frames = 0;
113
static int mb_decision = FF_MB_DECISION_SIMPLE;
114
static int mb_cmp = FF_CMP_SAD;
115
static int sub_cmp = FF_CMP_SAD;
116
static int cmp = FF_CMP_SAD;
117
static int use_4mv = 0;
118
static int use_obmc = 0;
119
static int use_aic = 0;
120
static int use_aiv = 0;
121
static int use_umv = 0;
122
static int use_alt_scan = 0;
123
static int do_deinterlace = 0;
124
static int do_interlace_dct = 0;
125
static int do_interlace_me = 0;
126
static int workaround_bugs = FF_BUG_AUTODETECT;
127
static int error_resilience = 2;
128
static int error_concealment = 3;
129
static int dct_algo = 0;
130
static int idct_algo = 0;
131
static int use_part = 0;
132
static int packet_size = 0;
133
static int error_rate = 0;
134
static int strict = 0;
135
static int top_field_first = -1;
136
static int noise_reduction = 0;
137
static int debug = 0;
138
static int debug_mv = 0;
139
extern int loop_input; /* currently a hack */
140

    
141
static int gop_size = 12;
142
static int intra_only = 0;
143
static int audio_sample_rate = 44100;
144
static int audio_bit_rate = 64000;
145
static int audio_disable = 0;
146
static int audio_channels = 1;
147
static int audio_codec_id = CODEC_ID_NONE;
148

    
149
static int64_t recording_time = 0;
150
static int64_t start_time = 0;
151
static int file_overwrite = 0;
152
static char *str_title = NULL;
153
static char *str_author = NULL;
154
static char *str_copyright = NULL;
155
static char *str_comment = NULL;
156
static int do_benchmark = 0;
157
static int do_hex_dump = 0;
158
static int do_pkt_dump = 0;
159
static int do_psnr = 0;
160
static int do_vstats = 0;
161
static int do_pass = 0;
162
static int bitexact = 0;
163
static char *pass_logfilename = NULL;
164
static int audio_stream_copy = 0;
165
static int video_stream_copy = 0;
166

    
167
static int rate_emu = 0;
168

    
169
static char *video_grab_format = "video4linux";
170
static char *video_device = NULL;
171
static int  video_channel = 0;
172
static char *video_standard = "ntsc";
173

    
174
static char *audio_grab_format = "audio_device";
175
static char *audio_device = NULL;
176

    
177
static int using_stdin = 0;
178
static int using_vhook = 0;
179
static int verbose = 1;
180

    
181
#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
182

    
183
typedef struct AVOutputStream {
184
    int file_index;          /* file index */
185
    int index;               /* stream index in the output file */
186
    int source_index;        /* AVInputStream index */
187
    AVStream *st;            /* stream in the output file */
188
    int encoding_needed;     /* true if encoding needed for this stream */
189
    int frame_number;
190
    /* input pts and corresponding output pts
191
       for A/V sync */
192
    double sync_ipts;
193
    double sync_ipts_offset;
194
    int64_t sync_opts;
195
    /* video only */
196
    int video_resample;      /* video_resample and video_crop are mutually exclusive */
197
    AVPicture pict_tmp;      /* temporary image for resampling */
198
    ImgReSampleContext *img_resample_ctx; /* for image resampling */
199

    
200
    int video_crop;          /* video_resample and video_crop are mutually exclusive */
201
    int topBand;             /* cropping area sizes */
202
    int leftBand;
203
    
204
    /* audio only */
205
    int audio_resample;
206
    ReSampleContext *resample; /* for audio resampling */
207
    FifoBuffer fifo;     /* for compression: one audio fifo per codec */
208
    FILE *logfile;
209
} AVOutputStream;
210

    
211
typedef struct AVInputStream {
212
    int file_index;
213
    int index;
214
    AVStream *st;
215
    int discard;             /* true if stream data should be discarded */
216
    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
217
    int64_t sample_index;      /* current sample */
218

    
219
    int64_t       start;     /* time when read started */
220
    unsigned long frame;     /* current frame */
221
    int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
222
                                is not defined */
223
    int64_t       pts;       /* current pts */
224
} AVInputStream;
225

    
226
typedef struct AVInputFile {
227
    int eof_reached;      /* true if eof reached */
228
    int ist_index;        /* index of first stream in ist_table */
229
    int buffer_size;      /* current total buffer size */
230
    int buffer_size_max;  /* buffer size at which we consider we can stop
231
                             buffering */
232
    int nb_streams;       /* nb streams we are aware of */
233
} AVInputFile;
234

    
235
#ifndef CONFIG_WIN32
236

    
237
/* init terminal so that we can grab keys */
238
static struct termios oldtty;
239

    
240
static void term_exit(void)
241
{
242
    tcsetattr (0, TCSANOW, &oldtty);
243
}
244

    
245
static volatile sig_atomic_t received_sigterm = 0;
246

    
247
static void
248
sigterm_handler(int sig)
249
{
250
    received_sigterm = sig;
251
    term_exit();
252
}
253

    
254
static void term_init(void)
255
{
256
    struct termios tty;
257

    
258
    tcgetattr (0, &tty);
259
    oldtty = tty;
260

    
261
    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
262
                          |INLCR|IGNCR|ICRNL|IXON);
263
    tty.c_oflag |= OPOST;
264
    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
265
    tty.c_cflag &= ~(CSIZE|PARENB);
266
    tty.c_cflag |= CS8;
267
    tty.c_cc[VMIN] = 1;
268
    tty.c_cc[VTIME] = 0;
269
    
270
    tcsetattr (0, TCSANOW, &tty);
271

    
272
    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
273
    signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
274
    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
275
    /*
276
    register a function to be called at normal program termination
277
    */
278
    atexit(term_exit);
279
#ifdef CONFIG_BEOS_NETSERVER
280
    fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
281
#endif
282
}
283

    
284
/* read a key without blocking */
285
static int read_key(void)
286
{
287
    int n = 1;
288
    unsigned char ch;
289
#ifndef CONFIG_BEOS_NETSERVER
290
    struct timeval tv;
291
    fd_set rfds;
292

    
293
    FD_ZERO(&rfds);
294
    FD_SET(0, &rfds);
295
    tv.tv_sec = 0;
296
    tv.tv_usec = 0;
297
    n = select(1, &rfds, NULL, NULL, &tv);
298
#endif
299
    if (n > 0) {
300
        n = read(0, &ch, 1);
301
        if (n == 1)
302
            return ch;
303

    
304
        return n;
305
    }
306
    return -1;
307
}
308

    
309
#else
310

    
311
static volatile int received_sigterm = 0;
312

    
313
/* no interactive support */
314
static void term_exit(void)
315
{
316
}
317

    
318
static void term_init(void)
319
{
320
}
321

    
322
static int read_key(void)
323
{
324
    return 0;
325
}
326

    
327
#endif
328

    
329
static int read_ffserver_streams(AVFormatContext *s, const char *filename)
330
{
331
    int i, err;
332
    AVFormatContext *ic;
333

    
334
    err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
335
    if (err < 0)
336
        return err;
337
    /* copy stream format */
338
    s->nb_streams = ic->nb_streams;
339
    for(i=0;i<ic->nb_streams;i++) {
340
        AVStream *st;
341

    
342
        st = av_mallocz(sizeof(AVStream));
343
        memcpy(st, ic->streams[i], sizeof(AVStream));
344
        s->streams[i] = st;
345
    }
346

    
347
    av_close_input_file(ic);
348
    return 0;
349
}
350

    
351
#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
352

    
353
static void do_audio_out(AVFormatContext *s, 
354
                         AVOutputStream *ost, 
355
                         AVInputStream *ist,
356
                         unsigned char *buf, int size)
357
{
358
    uint8_t *buftmp;
359
    static uint8_t *audio_buf = NULL;
360
    static uint8_t *audio_out = NULL;
361
    const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
362

    
363
    int size_out, frame_bytes, ret;
364
    AVCodecContext *enc;
365

    
366
    /* SC: dynamic allocation of buffers */
367
    if (!audio_buf)
368
        audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
369
    if (!audio_out)
370
        audio_out = av_malloc(audio_out_size);
371
    if (!audio_buf || !audio_out)
372
        return;               /* Should signal an error ! */
373

    
374
    
375
    enc = &ost->st->codec;
376

    
377
    if (ost->audio_resample) {
378
        buftmp = audio_buf;
379
        size_out = audio_resample(ost->resample, 
380
                                  (short *)buftmp, (short *)buf,
381
                                  size / (ist->st->codec.channels * 2));
382
        size_out = size_out * enc->channels * 2;
383
    } else {
384
        buftmp = buf;
385
        size_out = size;
386
    }
387

    
388
    /* now encode as many frames as possible */
389
    if (enc->frame_size > 1) {
390
        /* output resampled raw samples */
391
        fifo_write(&ost->fifo, buftmp, size_out, 
392
                   &ost->fifo.wptr);
393

    
394
        frame_bytes = enc->frame_size * 2 * enc->channels;
395
        
396
        while (fifo_read(&ost->fifo, audio_buf, frame_bytes, 
397
                     &ost->fifo.rptr) == 0) {
398
            ret = avcodec_encode_audio(enc, audio_out, audio_out_size, 
399
                                       (short *)audio_buf);
400
            av_write_frame(s, ost->index, audio_out, ret);
401
        }
402
    } else {
403
        /* output a pcm frame */
404
        /* XXX: change encoding codec API to avoid this ? */
405
        switch(enc->codec->id) {
406
        case CODEC_ID_PCM_S16LE:
407
        case CODEC_ID_PCM_S16BE:
408
        case CODEC_ID_PCM_U16LE:
409
        case CODEC_ID_PCM_U16BE:
410
            break;
411
        default:
412
            size_out = size_out >> 1;
413
            break;
414
        }
415
        ret = avcodec_encode_audio(enc, audio_out, size_out, 
416
                                   (short *)buftmp);
417
        av_write_frame(s, ost->index, audio_out, ret);
418
    }
419
}
420

    
421
static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
422
{
423
    AVCodecContext *dec;
424
    AVPicture *picture2;
425
    AVPicture picture_tmp;
426
    uint8_t *buf = 0;
427

    
428
    dec = &ist->st->codec;
429

    
430
    /* deinterlace : must be done before any resize */
431
    if (do_deinterlace || using_vhook) {
432
        int size;
433

    
434
        /* create temporary picture */
435
        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
436
        buf = av_malloc(size);
437
        if (!buf)
438
            return;
439
        
440
        picture2 = &picture_tmp;
441
        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
442

    
443
        if (do_deinterlace){
444
            if(avpicture_deinterlace(picture2, picture, 
445
                                     dec->pix_fmt, dec->width, dec->height) < 0) {
446
                /* if error, do not deinterlace */
447
                av_free(buf);
448
                buf = NULL;
449
                picture2 = picture;
450
            }
451
        } else {
452
            if (img_convert(picture2, dec->pix_fmt, picture, 
453
                            dec->pix_fmt, dec->width, dec->height) < 0) {
454
                /* if error, do not copy */
455
                av_free(buf);
456
                buf = NULL;
457
                picture2 = picture;
458
            }
459
        }
460
    } else {
461
        picture2 = picture;
462
    }
463

    
464
    frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
465

    
466
    if (picture != picture2)
467
        *picture = *picture2;
468
    *bufp = buf;
469
}
470

    
471
/* we begin to correct av delay at this threshold */
472
#define AV_DELAY_MAX 0.100
473

    
474
static void do_video_out(AVFormatContext *s, 
475
                         AVOutputStream *ost, 
476
                         AVInputStream *ist,
477
                         AVFrame *in_picture,
478
                         int *frame_size, AVOutputStream *audio_sync)
479
{
480
    int nb_frames, i, ret;
481
    AVPicture *final_picture, *formatted_picture;
482
    AVPicture picture_format_temp, picture_crop_temp;
483
    static uint8_t *video_buffer;
484
    uint8_t *buf = NULL, *buf1 = NULL;
485
    AVCodecContext *enc, *dec;
486
    enum PixelFormat target_pixfmt;
487

    
488
#define VIDEO_BUFFER_SIZE (1024*1024)
489

    
490
    enc = &ost->st->codec;
491
    dec = &ist->st->codec;
492

    
493
    /* by default, we output a single frame */
494
    nb_frames = 1;
495

    
496
    *frame_size = 0;
497

    
498
    /* NOTE: the A/V sync is always done by considering the audio is
499
       the master clock. It is suffisant for transcoding or playing,
500
       but not for the general case */
501
    if (audio_sync) {
502
        /* compute the A-V delay and duplicate/remove frames if needed */
503
        double adelta, vdelta, av_delay;
504

    
505
        adelta = audio_sync->sync_ipts - ((double)audio_sync->sync_opts * 
506
            s->pts_num / s->pts_den);
507

    
508
        vdelta = ost->sync_ipts - ((double)ost->sync_opts *
509
            s->pts_num / s->pts_den);
510

    
511
        av_delay = adelta - vdelta;
512
        //            printf("delay=%f\n", av_delay);
513
        if (av_delay < -AV_DELAY_MAX)
514
            nb_frames = 2;
515
        else if (av_delay > AV_DELAY_MAX)
516
            nb_frames = 0;
517
    } else {
518
        double vdelta;
519

    
520
        vdelta = (double)(ost->st->pts.val) * s->pts_num / s->pts_den - (ost->sync_ipts - ost->sync_ipts_offset);
521
        if (vdelta < 100 && vdelta > -100 && ost->sync_ipts_offset) {
522
            if (vdelta < -AV_DELAY_MAX)
523
                nb_frames = 2;
524
            else if (vdelta > AV_DELAY_MAX)
525
                nb_frames = 0;
526
        } else {
527
            ost->sync_ipts_offset -= vdelta;
528
            if (!ost->sync_ipts_offset)
529
                ost->sync_ipts_offset = 0.000001; /* one microsecond */
530
        }
531
    }
532
    
533
#if defined(AVSYNC_DEBUG)
534
    {
535
        static char *action[] = { "drop frame", "copy frame", "dup frame" };
536
        if (audio_sync)
537
            fprintf(stderr, "Input APTS %12.6f, output APTS %12.6f, ",
538
                    (double) audio_sync->sync_ipts, 
539
                    (double) audio_sync->st->pts.val * s->pts_num / s->pts_den);
540
        fprintf(stderr, "Input VPTS %12.6f, output VPTS %12.6f: %s\n",
541
                (double) ost->sync_ipts, 
542
                (double) ost->st->pts.val * s->pts_num / s->pts_den,
543
                action[nb_frames]);
544
    }
545
#endif
546

    
547
    if (nb_frames <= 0) 
548
        return;
549

    
550
    if (!video_buffer)
551
        video_buffer = av_malloc(VIDEO_BUFFER_SIZE);
552
    if (!video_buffer)
553
        return;
554

    
555
    /* convert pixel format if needed */
556
    target_pixfmt = ost->video_resample ? PIX_FMT_YUV420P : enc->pix_fmt;
557
    if (dec->pix_fmt != target_pixfmt) {
558
        int size;
559

    
560
        /* create temporary picture */
561
        size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
562
        buf = av_malloc(size);
563
        if (!buf)
564
            return;
565
        formatted_picture = &picture_format_temp;
566
        avpicture_fill(formatted_picture, buf, target_pixfmt, dec->width, dec->height);
567
        
568
        if (img_convert(formatted_picture, target_pixfmt, 
569
                        (AVPicture *)in_picture, dec->pix_fmt, 
570
                        dec->width, dec->height) < 0) {
571
            fprintf(stderr, "pixel format conversion not handled\n");
572
            goto the_end;
573
        }
574
    } else {
575
        formatted_picture = (AVPicture *)in_picture;
576
    }
577

    
578
    /* XXX: resampling could be done before raw format convertion in
579
       some cases to go faster */
580
    /* XXX: only works for YUV420P */
581
    if (ost->video_resample) {
582
        final_picture = &ost->pict_tmp;
583
        img_resample(ost->img_resample_ctx, final_picture, formatted_picture);
584
        if (enc->pix_fmt != PIX_FMT_YUV420P) {
585
            int size;
586
            
587
            av_free(buf);
588
            /* create temporary picture */
589
            size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
590
            buf = av_malloc(size);
591
            if (!buf)
592
                return;
593
            final_picture = &picture_format_temp;
594
            avpicture_fill(final_picture, buf, enc->pix_fmt, enc->width, enc->height);
595
        
596
            if (img_convert(final_picture, enc->pix_fmt, 
597
                            &ost->pict_tmp, PIX_FMT_YUV420P, 
598
                            enc->width, enc->height) < 0) {
599
                fprintf(stderr, "pixel format conversion not handled\n");
600
                goto the_end;
601
            }
602
        }
603
    } else if (ost->video_crop) {
604
        picture_crop_temp.data[0] = formatted_picture->data[0] +
605
                (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;
606

    
607
        picture_crop_temp.data[1] = formatted_picture->data[1] +
608
                ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
609
                (ost->leftBand >> 1);
610

    
611
        picture_crop_temp.data[2] = formatted_picture->data[2] +
612
                ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
613
                (ost->leftBand >> 1);
614

    
615
        picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
616
        picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
617
        picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
618
        final_picture = &picture_crop_temp;
619
    } else {
620
        final_picture = formatted_picture;
621
    }
622
    /* duplicates frame if needed */
623
    /* XXX: pb because no interleaving */
624
    for(i=0;i<nb_frames;i++) {
625
        if (s->oformat->flags & AVFMT_RAWPICTURE) {
626
            /* raw pictures are written as AVPicture structure to
627
               avoid any copies. We support temorarily the older
628
               method. */
629
            AVFrame* old_frame = enc->coded_frame;
630
            enc->coded_frame = dec->coded_frame;
631
            av_write_frame(s, ost->index, 
632
                           (uint8_t *)final_picture, sizeof(AVPicture));
633
            enc->coded_frame = old_frame;
634
        } else {
635
            AVFrame big_picture;
636
            
637
            memset(&big_picture, 0, sizeof(AVFrame));
638
            *(AVPicture*)&big_picture= *final_picture;
639
            /* better than nothing: use input picture interlaced
640
               settings */
641
            big_picture.interlaced_frame = in_picture->interlaced_frame;
642
            if(do_interlace_me || do_interlace_dct){
643
                if(top_field_first == -1)
644
                    big_picture.top_field_first = in_picture->top_field_first;
645
                else
646
                    big_picture.top_field_first = 1;
647
            }
648

    
649
            /* handles sameq here. This is not correct because it may
650
               not be a global option */
651
            if (same_quality) {
652
                big_picture.quality = ist->st->quality;
653
            }else
654
                big_picture.quality = ost->st->quality;
655
            
656
            ret = avcodec_encode_video(enc, 
657
                                       video_buffer, VIDEO_BUFFER_SIZE,
658
                                       &big_picture);
659
            //enc->frame_number = enc->real_pict_num;
660
            av_write_frame(s, ost->index, video_buffer, ret);
661
            *frame_size = ret;
662
            //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
663
            //        enc->frame_number-1, enc->real_pict_num, ret,
664
            //        enc->pict_type);
665
            /* if two pass, output log */
666
            if (ost->logfile && enc->stats_out) {
667
                fprintf(ost->logfile, "%s", enc->stats_out);
668
            }
669
        }
670
        ost->frame_number++;
671
    }
672
 the_end:
673
    av_free(buf);
674
    av_free(buf1);
675
}
676

    
677
static double psnr(double d){
678
    if(d==0) return INFINITY;
679
    return -10.0*log(d)/log(10.0);
680
}
681

    
682
static void do_video_stats(AVFormatContext *os, AVOutputStream *ost, 
683
                           int frame_size)
684
{
685
    static FILE *fvstats=NULL;
686
    static int64_t total_size = 0;
687
    char filename[40];
688
    time_t today2;
689
    struct tm *today;
690
    AVCodecContext *enc;
691
    int frame_number;
692
    int64_t ti;
693
    double ti1, bitrate, avg_bitrate;
694
    
695
    if (!fvstats) {
696
        today2 = time(NULL);
697
        today = localtime(&today2);
698
        sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
699
                                               today->tm_min,
700
                                               today->tm_sec);
701
        fvstats = fopen(filename,"w");
702
        if (!fvstats) {
703
            perror("fopen");
704
            exit(1);
705
        }
706
    }
707
    
708
    ti = MAXINT64;
709
    enc = &ost->st->codec;
710
    total_size += frame_size;
711
    if (enc->codec_type == CODEC_TYPE_VIDEO) {
712
        frame_number = ost->frame_number;
713
        fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
714
        if (enc->flags&CODEC_FLAG_PSNR)
715
            fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
716
        
717
        fprintf(fvstats,"f_size= %6d ", frame_size);
718
        /* compute pts value */
719
        ti1 = (double)ost->st->pts.val * os->pts_num / os->pts_den;
720
        if (ti1 < 0.01)
721
            ti1 = 0.01;
722
    
723
        bitrate = (double)(frame_size * 8) * enc->frame_rate / enc->frame_rate_base / 1000.0;
724
        avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
725
        fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
726
            (double)total_size / 1024, ti1, bitrate, avg_bitrate);
727
        fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));        
728
    }
729
}
730

    
731
static void print_report(AVFormatContext **output_files,
732
                         AVOutputStream **ost_table, int nb_ostreams,
733
                         int is_last_report)
734
{
735
    char buf[1024];
736
    AVOutputStream *ost;
737
    AVFormatContext *oc, *os;
738
    int64_t total_size;
739
    AVCodecContext *enc;
740
    int frame_number, vid, i;
741
    double bitrate, ti1, pts;
742
    static int64_t last_time = -1;
743
    
744
    if (!is_last_report) {
745
        int64_t cur_time;
746
        /* display the report every 0.5 seconds */
747
        cur_time = av_gettime();
748
        if (last_time == -1) {
749
            last_time = cur_time;
750
            return;
751
        } 
752
        if ((cur_time - last_time) < 500000)
753
            return;
754
        last_time = cur_time;
755
    }
756

    
757

    
758
    oc = output_files[0];
759

    
760
    total_size = url_ftell(&oc->pb);
761
    
762
    buf[0] = '\0';
763
    ti1 = 1e10;
764
    vid = 0;
765
    for(i=0;i<nb_ostreams;i++) {
766
        ost = ost_table[i];
767
        os = output_files[ost->file_index];
768
        enc = &ost->st->codec;
769
        if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
770
            sprintf(buf + strlen(buf), "q=%2.1f ",
771
                    enc->coded_frame->quality/(float)FF_QP2LAMBDA);
772
        }
773
        if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
774
            frame_number = ost->frame_number;
775
            sprintf(buf + strlen(buf), "frame=%5d q=%2.1f ",
776
                    frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : 0);
777
            if(is_last_report)
778
                sprintf(buf + strlen(buf), "L");
779
            if (enc->flags&CODEC_FLAG_PSNR){
780
                int j;
781
                double error, error_sum=0;
782
                double scale, scale_sum=0;
783
                char type[3]= {'Y','U','V'};
784
                sprintf(buf + strlen(buf), "PSNR=");
785
                for(j=0; j<3; j++){
786
                    if(is_last_report){
787
                        error= enc->error[j];
788
                        scale= enc->width*enc->height*255.0*255.0*frame_number;
789
                    }else{
790
                        error= enc->coded_frame->error[j];
791
                        scale= enc->width*enc->height*255.0*255.0;
792
                    }
793
                    if(j) scale/=4;
794
                    error_sum += error;
795
                    scale_sum += scale;
796
                    sprintf(buf + strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
797
                }
798
                sprintf(buf + strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
799
            }
800
            vid = 1;
801
        }
802
        /* compute min output value */
803
        pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
804
        if ((pts < ti1) && (pts > 0))
805
            ti1 = pts;
806
    }
807
    if (ti1 < 0.01)
808
        ti1 = 0.01;
809
    
810
    if (verbose || is_last_report) {
811
        bitrate = (double)(total_size * 8) / ti1 / 1000.0;
812
        
813
        sprintf(buf + strlen(buf), 
814
            "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
815
            (double)total_size / 1024, ti1, bitrate);
816
        
817
        fprintf(stderr, "%s    \r", buf);
818
        fflush(stderr);
819
    }
820
        
821
    if (is_last_report)
822
        fprintf(stderr, "\n");
823
}
824

    
825
/* pkt = NULL means EOF (needed to flush decoder buffers) */
826
static int output_packet(AVInputStream *ist, int ist_index,
827
                         AVOutputStream **ost_table, int nb_ostreams,
828
                         AVPacket *pkt)
829
{
830
    AVFormatContext *os;
831
    AVOutputStream *ost;
832
    uint8_t *ptr;
833
    int len, ret, i;
834
    uint8_t *data_buf;
835
    int data_size, got_picture;
836
    AVFrame picture;
837
    short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
838
    void *buffer_to_free;
839
        
840
    if (pkt && pkt->pts != AV_NOPTS_VALUE) {
841
        ist->pts = pkt->pts;
842
    } else {
843
        ist->pts = ist->next_pts;
844
    }
845
    
846
    if (pkt == NULL) {
847
        /* EOF handling */
848
        ptr = NULL;
849
        len = 0;
850
        goto handle_eof;
851
    }
852

    
853
    len = pkt->size;
854
    ptr = pkt->data;
855
    while (len > 0) {
856
    handle_eof:
857
        /* decode the packet if needed */
858
        data_buf = NULL; /* fail safe */
859
        data_size = 0;
860
        if (ist->decoding_needed) {
861
            switch(ist->st->codec.codec_type) {
862
            case CODEC_TYPE_AUDIO:
863
                    /* XXX: could avoid copy if PCM 16 bits with same
864
                       endianness as CPU */
865
                ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
866
                                           ptr, len);
867
                if (ret < 0)
868
                    goto fail_decode;
869
                ptr += ret;
870
                len -= ret;
871
                /* Some bug in mpeg audio decoder gives */
872
                /* data_size < 0, it seems they are overflows */
873
                if (data_size <= 0) {
874
                    /* no audio frame */
875
                    continue;
876
                }
877
                data_buf = (uint8_t *)samples;
878
                ist->next_pts += ((int64_t)AV_TIME_BASE * data_size) / 
879
                    (2 * ist->st->codec.channels);
880
                break;
881
            case CODEC_TYPE_VIDEO:
882
                    data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
883
                    /* XXX: allocate picture correctly */
884
                    memset(&picture, 0, sizeof(picture));
885
                    ret = avcodec_decode_video(&ist->st->codec, 
886
                                               &picture, &got_picture, ptr, len);
887
                    ist->st->quality= picture.quality;
888
                    if (ret < 0) 
889
                        goto fail_decode;
890
                    if (!got_picture) {
891
                        /* no picture yet */
892
                        goto discard_packet;
893
                    }
894
                    if (ist->st->codec.frame_rate_base != 0) {
895
                        ist->next_pts += ((int64_t)AV_TIME_BASE * 
896
                                          ist->st->codec.frame_rate_base) /
897
                            ist->st->codec.frame_rate;
898
                    }
899
                    len = 0;
900
                    break;
901
                default:
902
                    goto fail_decode;
903
                }
904
            } else {
905
                data_buf = ptr;
906
                data_size = len;
907
                ret = len;
908
                len = 0;
909
            }
910

    
911
            buffer_to_free = NULL;
912
            if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
913
                pre_process_video_frame(ist, (AVPicture *)&picture, 
914
                                        &buffer_to_free);
915
            }
916

    
917
            /* frame rate emulation */
918
            if (ist->st->codec.rate_emu) {
919
                int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec.frame_rate_base, 1000000, ist->st->codec.frame_rate);
920
                int64_t now = av_gettime() - ist->start;
921
                if (pts > now)
922
                    usleep(pts - now);
923

    
924
                ist->frame++;
925
            }
926

    
927
#if 0
928
            /* mpeg PTS deordering : if it is a P or I frame, the PTS
929
               is the one of the next displayed one */
930
            /* XXX: add mpeg4 too ? */
931
            if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) {
932
                if (ist->st->codec.pict_type != B_TYPE) {
933
                    int64_t tmp;
934
                    tmp = ist->last_ip_pts;
935
                    ist->last_ip_pts  = ist->frac_pts.val;
936
                    ist->frac_pts.val = tmp;
937
                }
938
            }
939
#endif
940
            /* if output time reached then transcode raw format, 
941
               encode packets and output them */
942
            if (start_time == 0 || ist->pts >= start_time)
943
                for(i=0;i<nb_ostreams;i++) {
944
                    int frame_size;
945

    
946
                    ost = ost_table[i];
947
                    if (ost->source_index == ist_index) {
948
                        os = output_files[ost->file_index];
949

    
950
#if 0
951
                        printf("%d: got pts=%0.3f %0.3f\n", i, 
952
                               (double)pkt->pts / AV_TIME_BASE, 
953
                               ((double)ist->pts / AV_TIME_BASE) - 
954
                               ((double)ost->st->pts.val * os->pts_num / os->pts_den));
955
#endif
956
                        /* set the input output pts pairs */
957
                        ost->sync_ipts = (double)ist->pts / AV_TIME_BASE;
958
                        /* XXX: take into account the various fifos,
959
                           in particular for audio */
960
                        ost->sync_opts = ost->st->pts.val;
961
                        //printf("ipts=%lld sync_ipts=%f sync_opts=%lld pts.val=%lld pkt->pts=%lld\n", ist->pts, ost->sync_ipts, ost->sync_opts, ost->st->pts.val, pkt->pts); 
962

    
963
                        if (ost->encoding_needed) {
964
                            switch(ost->st->codec.codec_type) {
965
                            case CODEC_TYPE_AUDIO:
966
                                do_audio_out(os, ost, ist, data_buf, data_size);
967
                                break;
968
                            case CODEC_TYPE_VIDEO:
969
                                /* find an audio stream for synchro */
970
                                {
971
                                    int i;
972
                                    AVOutputStream *audio_sync, *ost1;
973
                                    audio_sync = NULL;
974
                                    for(i=0;i<nb_ostreams;i++) {
975
                                        ost1 = ost_table[i];
976
                                        if (ost1->file_index == ost->file_index &&
977
                                            ost1->st->codec.codec_type == CODEC_TYPE_AUDIO) {
978
                                            audio_sync = ost1;
979
                                            break;
980
                                        }
981
                                    }
982

    
983
                                    do_video_out(os, ost, ist, &picture, &frame_size, audio_sync);
984
                                    if (do_vstats && frame_size)
985
                                        do_video_stats(os, ost, frame_size);
986
                                }
987
                                break;
988
                            default:
989
                                av_abort();
990
                            }
991
                        } else {
992
                            AVFrame avframe;
993
                                                
994
                            /* no reencoding needed : output the packet directly */
995
                            /* force the input stream PTS */
996
                        
997
                            memset(&avframe, 0, sizeof(AVFrame));
998
                            ost->st->codec.coded_frame= &avframe;
999
                            avframe.key_frame = pkt->flags & PKT_FLAG_KEY; 
1000
                        
1001
                            av_write_frame(os, ost->index, data_buf, data_size);
1002
                            ost->st->codec.frame_number++;
1003
                            ost->frame_number++;
1004
                        }
1005
                    }
1006
                }
1007
            av_free(buffer_to_free);
1008
        }
1009
 discard_packet:
1010
    return 0;
1011
 fail_decode:
1012
    return -1;
1013
}
1014

    
1015

    
1016
/*
1017
 * The following code is the main loop of the file converter
1018
 */
1019
static int av_encode(AVFormatContext **output_files,
1020
                     int nb_output_files,
1021
                     AVFormatContext **input_files,
1022
                     int nb_input_files,
1023
                     AVStreamMap *stream_maps, int nb_stream_maps)
1024
{
1025
    int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1026
    AVFormatContext *is, *os;
1027
    AVCodecContext *codec, *icodec;
1028
    AVOutputStream *ost, **ost_table = NULL;
1029
    AVInputStream *ist, **ist_table = NULL;
1030
    AVInputFile *file_table;
1031
    AVFormatContext *stream_no_data;
1032
    int key;
1033

    
1034
    file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1035
    if (!file_table)
1036
        goto fail;
1037

    
1038
    /* input stream init */
1039
    j = 0;
1040
    for(i=0;i<nb_input_files;i++) {
1041
        is = input_files[i];
1042
        file_table[i].ist_index = j;
1043
        file_table[i].nb_streams = is->nb_streams;
1044
        j += is->nb_streams;
1045
    }
1046
    nb_istreams = j;
1047

    
1048
    ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1049
    if (!ist_table)
1050
        goto fail;
1051
    
1052
    for(i=0;i<nb_istreams;i++) {
1053
        ist = av_mallocz(sizeof(AVInputStream));
1054
        if (!ist)
1055
            goto fail;
1056
        ist_table[i] = ist;
1057
    }
1058
    j = 0;
1059
    for(i=0;i<nb_input_files;i++) {
1060
        is = input_files[i];
1061
        for(k=0;k<is->nb_streams;k++) {
1062
            ist = ist_table[j++];
1063
            ist->st = is->streams[k];
1064
            ist->file_index = i;
1065
            ist->index = k;
1066
            ist->discard = 1; /* the stream is discarded by default
1067
                                 (changed later) */
1068

    
1069
            if (ist->st->codec.rate_emu) {
1070
                ist->start = av_gettime();
1071
                ist->frame = 0;
1072
            }
1073
        }
1074
    }
1075

    
1076
    /* output stream init */
1077
    nb_ostreams = 0;
1078
    for(i=0;i<nb_output_files;i++) {
1079
        os = output_files[i];
1080
        nb_ostreams += os->nb_streams;
1081
    }
1082
    if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1083
        fprintf(stderr, "Number of stream maps must match number of output streams\n");
1084
        exit(1);
1085
    }
1086

    
1087
    /* Sanity check the mapping args -- do the input files & streams exist? */
1088
    for(i=0;i<nb_stream_maps;i++) {
1089
        int fi = stream_maps[i].file_index;
1090
        int si = stream_maps[i].stream_index;
1091
        
1092
        if (fi < 0 || fi > nb_input_files - 1 ||
1093
            si < 0 || si > file_table[fi].nb_streams - 1) {
1094
            fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1095
            exit(1);
1096
        }
1097
    }
1098
    
1099
    ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1100
    if (!ost_table)
1101
        goto fail;
1102
    for(i=0;i<nb_ostreams;i++) {
1103
        ost = av_mallocz(sizeof(AVOutputStream));
1104
        if (!ost)
1105
            goto fail;
1106
        ost_table[i] = ost;
1107
    }
1108
    
1109
    n = 0;
1110
    for(k=0;k<nb_output_files;k++) {
1111
        os = output_files[k];
1112
        for(i=0;i<os->nb_streams;i++) {
1113
            int found;
1114
            ost = ost_table[n++];
1115
            ost->file_index = k;
1116
            ost->index = i;
1117
            ost->st = os->streams[i];
1118
            if (nb_stream_maps > 0) {
1119
                ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + 
1120
                    stream_maps[n-1].stream_index;
1121
                    
1122
                /* Sanity check that the stream types match */
1123
                if (ist_table[ost->source_index]->st->codec.codec_type != ost->st->codec.codec_type) {
1124
                    fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1125
                        stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1126
                        ost->file_index, ost->index);
1127
                    exit(1);
1128
                }
1129
                
1130
            } else {
1131
                /* get corresponding input stream index : we select the first one with the right type */
1132
                found = 0;
1133
                for(j=0;j<nb_istreams;j++) {
1134
                    ist = ist_table[j];
1135
                    if (ist->discard && 
1136
                        ist->st->codec.codec_type == ost->st->codec.codec_type) {
1137
                        ost->source_index = j;
1138
                        found = 1;
1139
                    }
1140
                }
1141
                
1142
                if (!found) {
1143
                    /* try again and reuse existing stream */
1144
                    for(j=0;j<nb_istreams;j++) {
1145
                        ist = ist_table[j];
1146
                        if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
1147
                            ost->source_index = j;
1148
                            found = 1;
1149
                        }
1150
                    }
1151
                    if (!found) {
1152
                        fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1153
                                ost->file_index, ost->index);
1154
                        exit(1);
1155
                    }
1156
                }
1157
            }
1158
            ist = ist_table[ost->source_index];
1159
            ist->discard = 0;
1160
        }
1161
    }
1162

    
1163
    /* for each output stream, we compute the right encoding parameters */
1164
    for(i=0;i<nb_ostreams;i++) {
1165
        ost = ost_table[i];
1166
        ist = ist_table[ost->source_index];
1167

    
1168
        codec = &ost->st->codec;
1169
        icodec = &ist->st->codec;
1170

    
1171
        if (ost->st->stream_copy) {
1172
            /* if stream_copy is selected, no need to decode or encode */
1173
            codec->codec_id = icodec->codec_id;
1174
            codec->codec_type = icodec->codec_type;
1175
            codec->codec_tag = icodec->codec_tag;
1176
            codec->bit_rate = icodec->bit_rate;
1177
            switch(codec->codec_type) {
1178
            case CODEC_TYPE_AUDIO:
1179
                codec->sample_rate = icodec->sample_rate;
1180
                codec->channels = icodec->channels;
1181
                break;
1182
            case CODEC_TYPE_VIDEO:
1183
                codec->frame_rate = icodec->frame_rate;
1184
                codec->frame_rate_base = icodec->frame_rate_base;
1185
                codec->width = icodec->width;
1186
                codec->height = icodec->height;
1187
                break;
1188
            default:
1189
                av_abort();
1190
            }
1191
        } else {
1192
            switch(codec->codec_type) {
1193
            case CODEC_TYPE_AUDIO:
1194
                if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1195
                    goto fail;
1196
                
1197
                if (codec->channels == icodec->channels &&
1198
                    codec->sample_rate == icodec->sample_rate) {
1199
                    ost->audio_resample = 0;
1200
                } else {
1201
                    if (codec->channels != icodec->channels &&
1202
                        icodec->codec_id == CODEC_ID_AC3) {
1203
                        /* Special case for 5:1 AC3 input */
1204
                        /* and mono or stereo output      */
1205
                        /* Request specific number of channels */
1206
                        icodec->channels = codec->channels;
1207
                        if (codec->sample_rate == icodec->sample_rate)
1208
                            ost->audio_resample = 0;
1209
                        else {
1210
                            ost->audio_resample = 1;
1211
                            ost->resample = audio_resample_init(codec->channels, icodec->channels,
1212
                                                        codec->sample_rate, 
1213
                                                        icodec->sample_rate);
1214
                            if(!ost->resample)
1215
                              {
1216
                                printf("Can't resample.  Aborting.\n");
1217
                                av_abort();
1218
                              }
1219
                        }
1220
                        /* Request specific number of channels */
1221
                        icodec->channels = codec->channels;
1222
                    } else {
1223
                        ost->audio_resample = 1; 
1224
                        ost->resample = audio_resample_init(codec->channels, icodec->channels,
1225
                                                        codec->sample_rate, 
1226
                                                        icodec->sample_rate);
1227
                        if(!ost->resample)
1228
                          {
1229
                            printf("Can't resample.  Aborting.\n");
1230
                            av_abort();
1231
                          }
1232
                    }
1233
                }
1234
                ist->decoding_needed = 1;
1235
                ost->encoding_needed = 1;
1236
                break;
1237
            case CODEC_TYPE_VIDEO:
1238
                if (codec->width == icodec->width &&
1239
                    codec->height == icodec->height &&
1240
                    frame_topBand == 0 &&
1241
                    frame_bottomBand == 0 &&
1242
                    frame_leftBand == 0 &&
1243
                    frame_rightBand == 0)
1244
                {
1245
                    ost->video_resample = 0;
1246
                    ost->video_crop = 0;
1247
                } else if ((codec->width == icodec->width -
1248
                                (frame_leftBand + frame_rightBand)) &&
1249
                        (codec->height == icodec->height -
1250
                                (frame_topBand  + frame_bottomBand)))
1251
                {
1252
                    ost->video_resample = 0;
1253
                    ost->video_crop = 1;
1254
                    ost->topBand = frame_topBand;
1255
                    ost->leftBand = frame_leftBand;
1256
                } else {
1257
                    uint8_t *buf;
1258
                    ost->video_resample = 1;
1259
                    ost->video_crop = 0; // cropping is handled as part of resample
1260
                    buf = av_malloc((codec->width * codec->height * 3) / 2);
1261
                    if (!buf)
1262
                        goto fail;
1263
                    ost->pict_tmp.data[0] = buf;
1264
                    ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
1265
                    ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
1266
                    ost->pict_tmp.linesize[0] = codec->width;
1267
                    ost->pict_tmp.linesize[1] = codec->width / 2;
1268
                    ost->pict_tmp.linesize[2] = codec->width / 2;
1269

    
1270
                    ost->img_resample_ctx = img_resample_full_init( 
1271
                                      ost->st->codec.width, ost->st->codec.height,
1272
                                      ist->st->codec.width, ist->st->codec.height,
1273
                                      frame_topBand, frame_bottomBand,
1274
                                      frame_leftBand, frame_rightBand);
1275
                }
1276
                ost->encoding_needed = 1;
1277
                ist->decoding_needed = 1;
1278
                break;
1279
            default:
1280
                av_abort();
1281
            }
1282
            /* two pass mode */
1283
            if (ost->encoding_needed && 
1284
                (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1285
                char logfilename[1024];
1286
                FILE *f;
1287
                int size;
1288
                char *logbuffer;
1289
                
1290
                snprintf(logfilename, sizeof(logfilename), "%s-%d.log", 
1291
                         pass_logfilename ? 
1292
                         pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1293
                if (codec->flags & CODEC_FLAG_PASS1) {
1294
                    f = fopen(logfilename, "w");
1295
                    if (!f) {
1296
                        perror(logfilename);
1297
                        exit(1);
1298
                    }
1299
                    ost->logfile = f;
1300
                } else {
1301
                    /* read the log file */
1302
                    f = fopen(logfilename, "r");
1303
                    if (!f) {
1304
                        perror(logfilename);
1305
                        exit(1);
1306
                    }
1307
                    fseek(f, 0, SEEK_END);
1308
                    size = ftell(f);
1309
                    fseek(f, 0, SEEK_SET);
1310
                    logbuffer = av_malloc(size + 1);
1311
                    if (!logbuffer) {
1312
                        fprintf(stderr, "Could not allocate log buffer\n");
1313
                        exit(1);
1314
                    }
1315
                    fread(logbuffer, 1, size, f);
1316
                    fclose(f);
1317
                    logbuffer[size] = '\0';
1318
                    codec->stats_in = logbuffer;
1319
                }
1320
            }
1321
        }
1322
    }
1323

    
1324
    /* dump the file output parameters - cannot be done before in case
1325
       of stream copy */
1326
    for(i=0;i<nb_output_files;i++) {
1327
        dump_format(output_files[i], i, output_files[i]->filename, 1);
1328
    }
1329

    
1330
    /* dump the stream mapping */
1331
    fprintf(stderr, "Stream mapping:\n");
1332
    for(i=0;i<nb_ostreams;i++) {
1333
        ost = ost_table[i];
1334
        fprintf(stderr, "  Stream #%d.%d -> #%d.%d\n",
1335
                ist_table[ost->source_index]->file_index,
1336
                ist_table[ost->source_index]->index,
1337
                ost->file_index, 
1338
                ost->index);
1339
    }
1340

    
1341
    /* open each encoder */
1342
    for(i=0;i<nb_ostreams;i++) {
1343
        ost = ost_table[i];
1344
        if (ost->encoding_needed) {
1345
            AVCodec *codec;
1346
            codec = avcodec_find_encoder(ost->st->codec.codec_id);
1347
            if (!codec) {
1348
                fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", 
1349
                        ost->file_index, ost->index);
1350
                exit(1);
1351
            }
1352
            if (avcodec_open(&ost->st->codec, codec) < 0) {
1353
                fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", 
1354
                        ost->file_index, ost->index);
1355
                exit(1);
1356
            }
1357
        }
1358
    }
1359

    
1360
    /* open each decoder */
1361
    for(i=0;i<nb_istreams;i++) {
1362
        ist = ist_table[i];
1363
        if (ist->decoding_needed) {
1364
            AVCodec *codec;
1365
            codec = avcodec_find_decoder(ist->st->codec.codec_id);
1366
            if (!codec) {
1367
                fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n", 
1368
                        ist->st->codec.codec_id, ist->file_index, ist->index);
1369
                exit(1);
1370
            }
1371
            if (avcodec_open(&ist->st->codec, codec) < 0) {
1372
                fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", 
1373
                        ist->file_index, ist->index);
1374
                exit(1);
1375
            }
1376
            //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
1377
            //    ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
1378
        }
1379
    }
1380

    
1381
    /* init pts */
1382
    for(i=0;i<nb_istreams;i++) {
1383
        ist = ist_table[i];
1384
        is = input_files[ist->file_index];
1385
        ist->pts = 0;
1386
        ist->next_pts = 0;
1387
    }
1388
    
1389
    /* compute buffer size max (should use a complete heuristic) */
1390
    for(i=0;i<nb_input_files;i++) {
1391
        file_table[i].buffer_size_max = 2048;
1392
    }
1393

    
1394
    /* open files and write file headers */
1395
    for(i=0;i<nb_output_files;i++) {
1396
        os = output_files[i];
1397
        if (av_write_header(os) < 0) {
1398
            fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
1399
            ret = -EINVAL;
1400
            goto fail;
1401
        }
1402
    }
1403

    
1404
#ifndef CONFIG_WIN32
1405
    if ( !using_stdin )
1406
        fprintf(stderr, "Press [q] to stop encoding\n");
1407
#endif
1408
    term_init();
1409

    
1410
    stream_no_data = 0;
1411
    key = -1;
1412

    
1413
    for(; received_sigterm == 0;) {
1414
        int file_index, ist_index;
1415
        AVPacket pkt;
1416
        double pts_min;
1417
        
1418
    redo:
1419
        /* if 'q' pressed, exits */
1420
        if (!using_stdin) {
1421
            /* read_key() returns 0 on EOF */
1422
            key = read_key();
1423
            if (key == 'q')
1424
                break;
1425
        }
1426

    
1427
        /* select the stream that we must read now by looking at the
1428
           smallest output pts */
1429
        file_index = -1;
1430
        pts_min = 1e10;
1431
        for(i=0;i<nb_ostreams;i++) {
1432
            double pts;
1433
            ost = ost_table[i];
1434
            os = output_files[ost->file_index];
1435
            ist = ist_table[ost->source_index];
1436
            pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
1437
            if (!file_table[ist->file_index].eof_reached && 
1438
                pts < pts_min) {
1439
                pts_min = pts;
1440
                file_index = ist->file_index;
1441
            }
1442
        }
1443
        /* if none, if is finished */
1444
        if (file_index < 0) {
1445
            break;
1446
        }
1447

    
1448
        /* finish if recording time exhausted */
1449
        if (recording_time > 0 && pts_min >= (recording_time / 1000000.0))
1450
            break;
1451

    
1452
        /* read a frame from it and output it in the fifo */
1453
        is = input_files[file_index];
1454
        if (av_read_frame(is, &pkt) < 0) {
1455
            file_table[file_index].eof_reached = 1;
1456
            continue;
1457
        }
1458
        if (!pkt.size) {
1459
            stream_no_data = is;
1460
        } else {
1461
            stream_no_data = 0;
1462
        }
1463
        if (do_pkt_dump) {
1464
            av_pkt_dump(stdout, &pkt, do_hex_dump);
1465
        }
1466
        /* the following test is needed in case new streams appear
1467
           dynamically in stream : we ignore them */
1468
        if (pkt.stream_index >= file_table[file_index].nb_streams)
1469
            goto discard_packet;
1470
        ist_index = file_table[file_index].ist_index + pkt.stream_index;
1471
        ist = ist_table[ist_index];
1472
        if (ist->discard)
1473
            goto discard_packet;
1474

    
1475
        //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1476
        if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1477
            fprintf(stderr, "Error while decoding stream #%d.%d\n",
1478
                    ist->file_index, ist->index);
1479
            av_free_packet(&pkt);
1480
            goto redo;
1481
        }
1482
        
1483
    discard_packet:
1484
        av_free_packet(&pkt);
1485
        
1486
        /* dump report by using the output first video and audio streams */
1487
        print_report(output_files, ost_table, nb_ostreams, 0);
1488
    }
1489

    
1490
    /* at the end of stream, we must flush the decoder buffers */
1491
    for(i=0;i<nb_istreams;i++) {
1492
        ist = ist_table[i];
1493
        if (ist->decoding_needed) {
1494
            output_packet(ist, i, ost_table, nb_ostreams, NULL);
1495
        }
1496
    }
1497

    
1498
    term_exit();
1499

    
1500
    /* dump report by using the first video and audio streams */
1501
    print_report(output_files, ost_table, nb_ostreams, 1);
1502

    
1503
    /* close each encoder */
1504
    for(i=0;i<nb_ostreams;i++) {
1505
        ost = ost_table[i];
1506
        if (ost->encoding_needed) {
1507
            av_freep(&ost->st->codec.stats_in);
1508
            avcodec_close(&ost->st->codec);
1509
        }
1510
    }
1511
    
1512
    /* close each decoder */
1513
    for(i=0;i<nb_istreams;i++) {
1514
        ist = ist_table[i];
1515
        if (ist->decoding_needed) {
1516
            avcodec_close(&ist->st->codec);
1517
        }
1518
    }
1519
    
1520

    
1521
    /* write the trailer if needed and close file */
1522
    for(i=0;i<nb_output_files;i++) {
1523
        os = output_files[i];
1524
        av_write_trailer(os);
1525
    }
1526
    /* finished ! */
1527
    
1528
    ret = 0;
1529
 fail1:
1530
    av_free(file_table);
1531

    
1532
    if (ist_table) {
1533
        for(i=0;i<nb_istreams;i++) {
1534
            ist = ist_table[i];
1535
            av_free(ist);
1536
        }
1537
        av_free(ist_table);
1538
    }
1539
    if (ost_table) {
1540
        for(i=0;i<nb_ostreams;i++) {
1541
            ost = ost_table[i];
1542
            if (ost) {
1543
                if (ost->logfile) {
1544
                    fclose(ost->logfile);
1545
                    ost->logfile = NULL;
1546
                }
1547
                fifo_free(&ost->fifo); /* works even if fifo is not
1548
                                          initialized but set to zero */
1549
                av_free(ost->pict_tmp.data[0]);
1550
                if (ost->video_resample)
1551
                    img_resample_close(ost->img_resample_ctx);
1552
                if (ost->audio_resample)
1553
                    audio_resample_close(ost->resample);
1554
                av_free(ost);
1555
            }
1556
        }
1557
        av_free(ost_table);
1558
    }
1559
    return ret;
1560
 fail:
1561
    ret = -ENOMEM;
1562
    goto fail1;
1563
}
1564

    
1565
#if 0
1566
int file_read(const char *filename)
1567
{
1568
    URLContext *h;
1569
    unsigned char buffer[1024];
1570
    int len, i;
1571

1572
    if (url_open(&h, filename, O_RDONLY) < 0) {
1573
        printf("could not open '%s'\n", filename);
1574
        return -1;
1575
    }
1576
    for(;;) {
1577
        len = url_read(h, buffer, sizeof(buffer));
1578
        if (len <= 0)
1579
            break;
1580
        for(i=0;i<len;i++) putchar(buffer[i]);
1581
    }
1582
    url_close(h);
1583
    return 0;
1584
}
1585
#endif
1586

    
1587
static void opt_image_format(const char *arg)
1588
{
1589
    AVImageFormat *f;
1590
    
1591
    for(f = first_image_format; f != NULL; f = f->next) {
1592
        if (!strcmp(arg, f->name))
1593
            break;
1594
    }
1595
    if (!f) {
1596
        fprintf(stderr, "Unknown image format: '%s'\n", arg);
1597
        exit(1);
1598
    }
1599
    image_format = f;
1600
}
1601

    
1602
static void opt_format(const char *arg)
1603
{
1604
    /* compatibility stuff for pgmyuv */
1605
    if (!strcmp(arg, "pgmyuv")) {
1606
        opt_image_format(arg);
1607
        arg = "image";
1608
    }
1609

    
1610
    file_iformat = av_find_input_format(arg);
1611
    file_oformat = guess_format(arg, NULL, NULL);
1612
    if (!file_iformat && !file_oformat) {
1613
        fprintf(stderr, "Unknown input or output format: %s\n", arg);
1614
        exit(1);
1615
    }
1616
}
1617

    
1618
static void opt_video_bitrate(const char *arg)
1619
{
1620
    video_bit_rate = atoi(arg) * 1000;
1621
}
1622

    
1623
static void opt_video_bitrate_tolerance(const char *arg)
1624
{
1625
    video_bit_rate_tolerance = atoi(arg) * 1000;
1626
}
1627

    
1628
static void opt_video_bitrate_max(const char *arg)
1629
{
1630
    video_rc_max_rate = atoi(arg) * 1000;
1631
}
1632

    
1633
static void opt_video_bitrate_min(const char *arg)
1634
{
1635
    video_rc_min_rate = atoi(arg) * 1000;
1636
}
1637

    
1638
static void opt_video_buffer_size(const char *arg)
1639
{
1640
    video_rc_buffer_size = atoi(arg) * 1024;
1641
}
1642

    
1643
static void opt_video_rc_eq(char *arg)
1644
{
1645
    video_rc_eq = arg;
1646
}
1647

    
1648
static void opt_video_rc_override_string(char *arg)
1649
{
1650
    video_rc_override_string = arg;
1651
}
1652

    
1653

    
1654
static void opt_workaround_bugs(const char *arg)
1655
{
1656
    workaround_bugs = atoi(arg);
1657
}
1658

    
1659
static void opt_dct_algo(const char *arg)
1660
{
1661
    dct_algo = atoi(arg);
1662
}
1663

    
1664
static void opt_idct_algo(const char *arg)
1665
{
1666
    idct_algo = atoi(arg);
1667
}
1668

    
1669

    
1670
static void opt_error_resilience(const char *arg)
1671
{
1672
    error_resilience = atoi(arg);
1673
}
1674

    
1675
static void opt_error_concealment(const char *arg)
1676
{
1677
    error_concealment = atoi(arg);
1678
}
1679

    
1680
static void opt_debug(const char *arg)
1681
{
1682
    debug = atoi(arg);
1683
}
1684

    
1685
static void opt_vismv(const char *arg)
1686
{
1687
    debug_mv = atoi(arg);
1688
}
1689
    
1690
static void opt_verbose(const char *arg)
1691
{
1692
    verbose = atoi(arg);
1693
}
1694

    
1695
static void opt_frame_rate(const char *arg)
1696
{
1697
    if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
1698
        fprintf(stderr, "Incorrect frame rate\n");
1699
        exit(1);
1700
    }
1701
}
1702

    
1703
static void opt_frame_crop_top(const char *arg)
1704
{
1705
    frame_topBand = atoi(arg); 
1706
    if (frame_topBand < 0) {
1707
        fprintf(stderr, "Incorrect top crop size\n");
1708
        exit(1);
1709
    }
1710
    if ((frame_topBand % 2) != 0) {
1711
        fprintf(stderr, "Top crop size must be a multiple of 2\n");
1712
        exit(1);
1713
    }
1714
    if ((frame_topBand) >= frame_height){
1715
            fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1716
        exit(1);
1717
    }
1718
    frame_height -= frame_topBand;
1719
}
1720

    
1721
static void opt_frame_crop_bottom(const char *arg)
1722
{
1723
    frame_bottomBand = atoi(arg);
1724
    if (frame_bottomBand < 0) {
1725
        fprintf(stderr, "Incorrect bottom crop size\n");
1726
        exit(1);
1727
    }
1728
    if ((frame_bottomBand % 2) != 0) {
1729
        fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
1730
        exit(1);        
1731
    }
1732
    if ((frame_bottomBand) >= frame_height){
1733
            fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1734
        exit(1);
1735
    }
1736
    frame_height -= frame_bottomBand;
1737
}
1738

    
1739
static void opt_frame_crop_left(const char *arg)
1740
{
1741
    frame_leftBand = atoi(arg);
1742
    if (frame_leftBand < 0) {
1743
        fprintf(stderr, "Incorrect left crop size\n");
1744
        exit(1);
1745
    }
1746
    if ((frame_leftBand % 2) != 0) {
1747
        fprintf(stderr, "Left crop size must be a multiple of 2\n");
1748
        exit(1);
1749
    }
1750
    if ((frame_leftBand) >= frame_width){
1751
            fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1752
        exit(1);
1753
    }
1754
    frame_width -= frame_leftBand;
1755
}
1756

    
1757
static void opt_frame_crop_right(const char *arg)
1758
{
1759
    frame_rightBand = atoi(arg);
1760
    if (frame_rightBand < 0) {
1761
        fprintf(stderr, "Incorrect right crop size\n");
1762
        exit(1);
1763
    }
1764
    if ((frame_rightBand % 2) != 0) {
1765
        fprintf(stderr, "Right crop size must be a multiple of 2\n");
1766
        exit(1);        
1767
    }
1768
    if ((frame_rightBand) >= frame_width){
1769
            fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1770
        exit(1);
1771
    }
1772
    frame_width -= frame_rightBand;
1773
}
1774

    
1775
static void opt_frame_size(const char *arg)
1776
{
1777
    if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
1778
        fprintf(stderr, "Incorrect frame size\n");
1779
        exit(1);
1780
    }
1781
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1782
        fprintf(stderr, "Frame size must be a multiple of 2\n");
1783
        exit(1);
1784
    }
1785
}
1786

    
1787
static void opt_frame_pix_fmt(const char *arg)
1788
{
1789
    frame_pix_fmt = avcodec_get_pix_fmt(arg);
1790
}
1791

    
1792
static void opt_frame_aspect_ratio(const char *arg)
1793
{
1794
    int x = 0, y = 0;
1795
    double ar = 0;
1796
    const char *p;
1797
    
1798
    p = strchr(arg, ':');
1799
    if (p) {
1800
        x = strtol(arg, (char **)&arg, 10);
1801
        if (arg == p)
1802
            y = strtol(arg+1, (char **)&arg, 10);
1803
        if (x > 0 && y > 0)
1804
            ar = (double)x / (double)y;
1805
    } else
1806
        ar = strtod(arg, (char **)&arg);
1807

    
1808
    if (!ar) {
1809
        fprintf(stderr, "Incorrect aspect ratio specification.\n");
1810
        exit(1);
1811
    }
1812
    frame_aspect_ratio = ar;
1813
}
1814

    
1815
static void opt_gop_size(const char *arg)
1816
{
1817
    gop_size = atoi(arg);
1818
}
1819

    
1820
static void opt_b_frames(const char *arg)
1821
{
1822
    b_frames = atoi(arg);
1823
    if (b_frames > FF_MAX_B_FRAMES) {
1824
        fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1825
        exit(1);
1826
    } else if (b_frames < 1) {
1827
        fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1828
        exit(1);
1829
    }
1830
}
1831

    
1832
static void opt_mb_decision(const char *arg)
1833
{
1834
    mb_decision = atoi(arg);
1835
}
1836

    
1837
static void opt_mb_cmp(const char *arg)
1838
{
1839
    mb_cmp = atoi(arg);
1840
}
1841

    
1842
static void opt_sub_cmp(const char *arg)
1843
{
1844
    sub_cmp = atoi(arg);
1845
}
1846

    
1847
static void opt_cmp(const char *arg)
1848
{
1849
    cmp = atoi(arg);
1850
}
1851

    
1852
static void opt_qscale(const char *arg)
1853
{
1854
    video_qscale = atof(arg);
1855
    if (video_qscale < 0.01 ||
1856
        video_qscale > 255) {
1857
        fprintf(stderr, "qscale must be >= 0.01 and <= 255\n");
1858
        exit(1);
1859
    }
1860
}
1861

    
1862
static void opt_qmin(const char *arg)
1863
{
1864
    video_qmin = atoi(arg);
1865
    if (video_qmin < 0 ||
1866
        video_qmin > 31) {
1867
        fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1868
        exit(1);
1869
    }
1870
}
1871

    
1872
static void opt_qmax(const char *arg)
1873
{
1874
    video_qmax = atoi(arg);
1875
    if (video_qmax < 0 ||
1876
        video_qmax > 31) {
1877
        fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1878
        exit(1);
1879
    }
1880
}
1881

    
1882
static void opt_mb_qmin(const char *arg)
1883
{
1884
    video_mb_qmin = atoi(arg);
1885
    if (video_mb_qmin < 0 ||
1886
        video_mb_qmin > 31) {
1887
        fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1888
        exit(1);
1889
    }
1890
}
1891

    
1892
static void opt_mb_qmax(const char *arg)
1893
{
1894
    video_mb_qmax = atoi(arg);
1895
    if (video_mb_qmax < 0 ||
1896
        video_mb_qmax > 31) {
1897
        fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1898
        exit(1);
1899
    }
1900
}
1901

    
1902
static void opt_qdiff(const char *arg)
1903
{
1904
    video_qdiff = atoi(arg);
1905
    if (video_qdiff < 0 ||
1906
        video_qdiff > 31) {
1907
        fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1908
        exit(1);
1909
    }
1910
}
1911

    
1912
static void opt_qblur(const char *arg)
1913
{
1914
    video_qblur = atof(arg);
1915
}
1916

    
1917
static void opt_qcomp(const char *arg)
1918
{
1919
    video_qcomp = atof(arg);
1920
}
1921

    
1922
static void opt_rc_initial_cplx(const char *arg)
1923
{
1924
    video_rc_initial_cplx = atof(arg);
1925
}
1926
static void opt_b_qfactor(const char *arg)
1927
{
1928
    video_b_qfactor = atof(arg);
1929
}
1930
static void opt_i_qfactor(const char *arg)
1931
{
1932
    video_i_qfactor = atof(arg);
1933
}
1934
static void opt_b_qoffset(const char *arg)
1935
{
1936
    video_b_qoffset = atof(arg);
1937
}
1938
static void opt_i_qoffset(const char *arg)
1939
{
1940
    video_i_qoffset = atof(arg);
1941
}
1942

    
1943
static void opt_packet_size(const char *arg)
1944
{
1945
    packet_size= atoi(arg);
1946
}
1947

    
1948
static void opt_error_rate(const char *arg)
1949
{
1950
    error_rate= atoi(arg);
1951
}
1952

    
1953
static void opt_strict(const char *arg)
1954
{
1955
    strict= atoi(arg);
1956
}
1957

    
1958
static void opt_top_field_first(const char *arg)
1959
{
1960
    top_field_first= atoi(arg);
1961
}
1962

    
1963
static void opt_noise_reduction(const char *arg)
1964
{
1965
    noise_reduction= atoi(arg);
1966
}
1967

    
1968
static void opt_audio_bitrate(const char *arg)
1969
{
1970
    audio_bit_rate = atoi(arg) * 1000;
1971
}
1972

    
1973
static void opt_audio_rate(const char *arg)
1974
{
1975
    audio_sample_rate = atoi(arg);
1976
}
1977

    
1978
static void opt_audio_channels(const char *arg)
1979
{
1980
    audio_channels = atoi(arg);
1981
}
1982

    
1983
static void opt_video_device(const char *arg)
1984
{
1985
    video_device = av_strdup(arg);
1986
}
1987

    
1988
static void opt_video_channel(const char *arg)
1989
{
1990
    video_channel = strtol(arg, NULL, 0);
1991
}
1992

    
1993
static void opt_video_standard(const char *arg)
1994
{
1995
    video_standard = av_strdup(arg);
1996
}
1997

    
1998
static void opt_audio_device(const char *arg)
1999
{
2000
    audio_device = av_strdup(arg);
2001
}
2002

    
2003
static void opt_dv1394(const char *arg)
2004
{
2005
    video_grab_format = "dv1394";
2006
    audio_grab_format = NULL;
2007
}
2008

    
2009
static void opt_audio_codec(const char *arg)
2010
{
2011
    AVCodec *p;
2012

    
2013
    if (!strcmp(arg, "copy")) {
2014
        audio_stream_copy = 1;
2015
    } else {
2016
        p = first_avcodec;
2017
        while (p) {
2018
            if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
2019
                break;
2020
            p = p->next;
2021
        }
2022
        if (p == NULL) {
2023
            fprintf(stderr, "Unknown audio codec '%s'\n", arg);
2024
            exit(1);
2025
        } else {
2026
            audio_codec_id = p->id;
2027
        }
2028
    }
2029
}
2030

    
2031
static void add_frame_hooker(const char *arg)
2032
{
2033
    int argc = 0;
2034
    char *argv[64];
2035
    int i;
2036
    char *args = av_strdup(arg);
2037

    
2038
    using_vhook = 1;
2039

    
2040
    argv[0] = strtok(args, " ");
2041
    while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2042
    }
2043

    
2044
    i = frame_hook_add(argc, argv);
2045

    
2046
    if (i != 0) {
2047
        fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2048
        exit(1);
2049
    }
2050
}
2051

    
2052
const char *motion_str[] = {
2053
    "zero",
2054
    "full",
2055
    "log",
2056
    "phods",
2057
    "epzs",
2058
    "x1",
2059
    NULL,
2060
};
2061

    
2062
static void opt_motion_estimation(const char *arg)
2063
{
2064
    const char **p;
2065
    p = motion_str;
2066
    for(;;) {
2067
        if (!*p) {
2068
            fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2069
            exit(1);
2070
        }
2071
        if (!strcmp(*p, arg))
2072
            break;
2073
        p++;
2074
    }
2075
    me_method = (p - motion_str) + 1;
2076
}
2077

    
2078
static void opt_video_codec(const char *arg)
2079
{
2080
    AVCodec *p;
2081

    
2082
    if (!strcmp(arg, "copy")) {
2083
        video_stream_copy = 1;
2084
    } else {
2085
        p = first_avcodec;
2086
        while (p) {
2087
            if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
2088
                break;
2089
            p = p->next;
2090
        }
2091
        if (p == NULL) {
2092
            fprintf(stderr, "Unknown video codec '%s'\n", arg);
2093
            exit(1);
2094
        } else {
2095
            video_codec_id = p->id;
2096
        }
2097
    }
2098
}
2099

    
2100
static void opt_map(const char *arg)
2101
{
2102
    AVStreamMap *m;
2103
    const char *p;
2104

    
2105
    p = arg;
2106
    m = &stream_maps[nb_stream_maps++];
2107

    
2108
    m->file_index = strtol(arg, (char **)&p, 0);
2109
    if (*p)
2110
        p++;
2111

    
2112
    m->stream_index = strtol(p, (char **)&p, 0);
2113
}
2114

    
2115
static void opt_recording_time(const char *arg)
2116
{
2117
    recording_time = parse_date(arg, 1);
2118
}
2119

    
2120
static void opt_start_time(const char *arg)
2121
{
2122
    start_time = parse_date(arg, 1);
2123
}
2124

    
2125
static void opt_input_file(const char *filename)
2126
{
2127
    AVFormatContext *ic;
2128
    AVFormatParameters params, *ap = &params;
2129
    int err, i, ret, rfps, rfps_base;
2130

    
2131
    if (!strcmp(filename, "-"))
2132
        filename = "pipe:";
2133

    
2134
    using_stdin |= !strcmp(filename, "pipe:" ) || 
2135
                   !strcmp( filename, "/dev/stdin" );
2136

    
2137
    /* get default parameters from command line */
2138
    memset(ap, 0, sizeof(*ap));
2139
    ap->sample_rate = audio_sample_rate;
2140
    ap->channels = audio_channels;
2141
    ap->frame_rate = frame_rate;
2142
    ap->frame_rate_base = frame_rate_base;
2143
    ap->width = frame_width;
2144
    ap->height = frame_height;
2145
    ap->image_format = image_format;
2146
    ap->pix_fmt = frame_pix_fmt;
2147

    
2148
    /* open the input file with generic libav function */
2149
    err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2150
    if (err < 0) {
2151
        print_error(filename, err);
2152
        exit(1);
2153
    }
2154
    
2155
    /* If not enough info to get the stream parameters, we decode the
2156
       first frames to get it. (used in mpeg case for example) */
2157
    ret = av_find_stream_info(ic);
2158
    if (ret < 0) {
2159
        fprintf(stderr, "%s: could not find codec parameters\n", filename);
2160
        exit(1);
2161
    }
2162

    
2163
    /* if seeking requested, we execute it */
2164
    if (start_time != 0) {
2165
        int64_t timestamp;
2166

    
2167
        timestamp = start_time;
2168
        /* add the stream start time */
2169
        if (ic->start_time != AV_NOPTS_VALUE)
2170
            timestamp += ic->start_time;
2171
        ret = av_seek_frame(ic, -1, timestamp);
2172
        if (ret < 0) {
2173
            fprintf(stderr, "%s: could not seek to position %0.3f\n", 
2174
                    filename, (double)timestamp / AV_TIME_BASE);
2175
        }
2176
        /* reset seek info */
2177
        start_time = 0;
2178
    }
2179

    
2180
    /* update the current parameters so that they match the one of the input stream */
2181
    for(i=0;i<ic->nb_streams;i++) {
2182
        AVCodecContext *enc = &ic->streams[i]->codec;
2183
        switch(enc->codec_type) {
2184
        case CODEC_TYPE_AUDIO:
2185
            //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2186
            audio_channels = enc->channels;
2187
            audio_sample_rate = enc->sample_rate;
2188
            break;
2189
        case CODEC_TYPE_VIDEO:
2190
            frame_height = enc->height;
2191
            frame_width = enc->width;
2192
            frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2193
            frame_pix_fmt = enc->pix_fmt;
2194
            rfps      = ic->streams[i]->r_frame_rate;
2195
            rfps_base = ic->streams[i]->r_frame_rate_base;
2196
            enc->workaround_bugs = workaround_bugs;
2197
            enc->error_resilience = error_resilience; 
2198
            enc->error_concealment = error_concealment; 
2199
            enc->idct_algo = idct_algo;
2200
            enc->debug = debug;
2201
            enc->debug_mv = debug_mv;            
2202
            if(bitexact)
2203
                enc->flags|= CODEC_FLAG_BITEXACT;
2204

    
2205
            assert(enc->frame_rate_base == rfps_base); // should be true for now
2206
            if (enc->frame_rate != rfps) { 
2207
                fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
2208
                    i, (float)enc->frame_rate / enc->frame_rate_base,
2209
                    (float)rfps / rfps_base);
2210
            }
2211
            /* update the current frame rate to match the stream frame rate */
2212
            frame_rate      = rfps;
2213
            frame_rate_base = rfps_base;
2214

    
2215
            enc->rate_emu = rate_emu;
2216
            break;
2217
        case CODEC_TYPE_DATA:
2218
            break;
2219
        default:
2220
            av_abort();
2221
        }
2222
    }
2223
    
2224
    input_files[nb_input_files] = ic;
2225
    /* dump the file content */
2226
    dump_format(ic, nb_input_files, filename, 0);
2227
    nb_input_files++;
2228
    file_iformat = NULL;
2229
    file_oformat = NULL;
2230
    image_format = NULL;
2231

    
2232
    rate_emu = 0;
2233
}
2234

    
2235
static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2236
{
2237
    int has_video, has_audio, i, j;
2238
    AVFormatContext *ic;
2239

    
2240
    has_video = 0;
2241
    has_audio = 0;
2242
    for(j=0;j<nb_input_files;j++) {
2243
        ic = input_files[j];
2244
        for(i=0;i<ic->nb_streams;i++) {
2245
            AVCodecContext *enc = &ic->streams[i]->codec;
2246
            switch(enc->codec_type) {
2247
            case CODEC_TYPE_AUDIO:
2248
                has_audio = 1;
2249
                break;
2250
            case CODEC_TYPE_VIDEO:
2251
                has_video = 1;
2252
                break;
2253
            default:
2254
                av_abort();
2255
            }
2256
        }
2257
    }
2258
    *has_video_ptr = has_video;
2259
    *has_audio_ptr = has_audio;
2260
}
2261

    
2262
static void opt_output_file(const char *filename)
2263
{
2264
    AVStream *st;
2265
    AVFormatContext *oc;
2266
    int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
2267
    int codec_id;
2268
    AVFormatParameters params, *ap = &params;
2269

    
2270
    if (!strcmp(filename, "-"))
2271
        filename = "pipe:";
2272

    
2273
    oc = av_mallocz(sizeof(AVFormatContext));
2274

    
2275
    if (!file_oformat) {
2276
        file_oformat = guess_format(NULL, filename, NULL);
2277
        if (!file_oformat) {
2278
            fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
2279
                    filename);
2280
            exit(1);
2281
        }
2282
    }
2283
    
2284
    oc->oformat = file_oformat;
2285

    
2286
    if (!strcmp(file_oformat->name, "ffm") && 
2287
        strstart(filename, "http:", NULL)) {
2288
        /* special case for files sent to ffserver: we get the stream
2289
           parameters from ffserver */
2290
        if (read_ffserver_streams(oc, filename) < 0) {
2291
            fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
2292
            exit(1);
2293
        }
2294
    } else {
2295
        use_video = file_oformat->video_codec != CODEC_ID_NONE;
2296
        use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
2297

    
2298
        /* disable if no corresponding type found and at least one
2299
           input file */
2300
        if (nb_input_files > 0) {
2301
            check_audio_video_inputs(&input_has_video, &input_has_audio);
2302
            if (!input_has_video)
2303
                use_video = 0;
2304
            if (!input_has_audio)
2305
                use_audio = 0;
2306
        }
2307

    
2308
        /* manual disable */
2309
        if (audio_disable) {
2310
            use_audio = 0;
2311
        }
2312
        if (video_disable) {
2313
            use_video = 0;
2314
        }
2315
        
2316
        nb_streams = 0;
2317
        if (use_video) {
2318
            AVCodecContext *video_enc;
2319
            
2320
            st = av_mallocz(sizeof(AVStream));
2321
            if (!st) {
2322
                fprintf(stderr, "Could not alloc stream\n");
2323
                exit(1);
2324
            }
2325
            avcodec_get_context_defaults(&st->codec);
2326

    
2327
            video_enc = &st->codec;
2328
            
2329
            if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp"))
2330
                video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2331
            if (video_stream_copy) {
2332
                st->stream_copy = 1;
2333
                video_enc->codec_type = CODEC_TYPE_VIDEO;
2334
            } else {
2335
                char *p;
2336
                int i;
2337
            
2338
                codec_id = file_oformat->video_codec;
2339
                if (video_codec_id != CODEC_ID_NONE)
2340
                    codec_id = video_codec_id;
2341
                
2342
                video_enc->codec_id = codec_id;
2343
                
2344
                video_enc->bit_rate = video_bit_rate;
2345
                video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
2346
                video_enc->frame_rate = frame_rate; 
2347
                video_enc->frame_rate_base = frame_rate_base; 
2348
                
2349
                video_enc->width = frame_width;
2350
                video_enc->height = frame_height;
2351
                video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
2352
                video_enc->pix_fmt = frame_pix_fmt;
2353

    
2354
                if (!intra_only)
2355
                    video_enc->gop_size = gop_size;
2356
                else
2357
                    video_enc->gop_size = 0;
2358
                if (video_qscale || same_quality) {
2359
                    video_enc->flags |= CODEC_FLAG_QSCALE;
2360
                    st->quality = FF_QP2LAMBDA * video_qscale;
2361
                }
2362

    
2363
                if(intra_matrix)
2364
                    video_enc->intra_matrix = intra_matrix;
2365
                if(inter_matrix)
2366
                    video_enc->inter_matrix = inter_matrix;
2367

    
2368
                if(bitexact)
2369
                    video_enc->flags |= CODEC_FLAG_BITEXACT;
2370

    
2371
                video_enc->mb_decision = mb_decision;
2372
                video_enc->mb_cmp = mb_cmp;
2373
                video_enc->me_sub_cmp = sub_cmp;
2374
                video_enc->me_cmp = cmp;
2375
                
2376
                if (use_umv) {
2377
                    video_enc->flags |= CODEC_FLAG_H263P_UMV;
2378
                }
2379
                   if (use_aic) {
2380
                    video_enc->flags |= CODEC_FLAG_H263P_AIC;
2381
                }
2382
                   if (use_aiv) {
2383
                    video_enc->flags |= CODEC_FLAG_H263P_AIV;
2384
                }
2385
                if (use_4mv) {
2386
                    video_enc->flags |= CODEC_FLAG_4MV;
2387
                }
2388
                if (use_obmc) {
2389
                    video_enc->flags |= CODEC_FLAG_OBMC;
2390
                }
2391
            
2392
                if(use_part) {
2393
                    video_enc->flags |= CODEC_FLAG_PART;
2394
                }
2395
                   if (use_alt_scan) {
2396
                    video_enc->flags |= CODEC_FLAG_ALT_SCAN;
2397
                }
2398
                if (b_frames) {
2399
                    video_enc->max_b_frames = b_frames;
2400
                    video_enc->b_frame_strategy = 0;
2401
                    video_enc->b_quant_factor = 2.0;
2402
                }
2403
                if (do_interlace_dct) {
2404
                    video_enc->flags |= CODEC_FLAG_INTERLACED_DCT;
2405
                }
2406
                if (do_interlace_me) {
2407
                    video_enc->flags |= CODEC_FLAG_INTERLACED_ME;
2408
                }
2409
                video_enc->qmin = video_qmin;
2410
                video_enc->qmax = video_qmax;
2411
                video_enc->mb_qmin = video_mb_qmin;
2412
                video_enc->mb_qmax = video_mb_qmax;
2413
                video_enc->max_qdiff = video_qdiff;
2414
                video_enc->qblur = video_qblur;
2415
                video_enc->qcompress = video_qcomp;
2416
                video_enc->rc_eq = video_rc_eq;
2417
                video_enc->debug = debug;
2418
                video_enc->debug_mv = debug_mv;                
2419
                p= video_rc_override_string;
2420
                for(i=0; p; i++){
2421
                    int start, end, q;
2422
                    int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2423
                    if(e!=3){
2424
                        fprintf(stderr, "error parsing rc_override\n");
2425
                        exit(1);
2426
                    }
2427
                    video_enc->rc_override= 
2428
                        av_realloc(video_enc->rc_override, 
2429
                                   sizeof(RcOverride)*(i+1));
2430
                    video_enc->rc_override[i].start_frame= start;
2431
                    video_enc->rc_override[i].end_frame  = end;
2432
                    if(q>0){
2433
                        video_enc->rc_override[i].qscale= q;
2434
                        video_enc->rc_override[i].quality_factor= 1.0;
2435
                    }
2436
                    else{
2437
                        video_enc->rc_override[i].qscale= 0;
2438
                        video_enc->rc_override[i].quality_factor= -q/100.0;
2439
                    }
2440
                    p= strchr(p, '/');
2441
                    if(p) p++;
2442
                }
2443
                video_enc->rc_override_count=i;
2444

    
2445
                video_enc->rc_max_rate = video_rc_max_rate;
2446
                video_enc->rc_min_rate = video_rc_min_rate;
2447
                video_enc->rc_buffer_size = video_rc_buffer_size;
2448
                video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
2449
                video_enc->rc_initial_cplx= video_rc_initial_cplx;
2450
                video_enc->i_quant_factor = video_i_qfactor;
2451
                video_enc->b_quant_factor = video_b_qfactor;
2452
                video_enc->i_quant_offset = video_i_qoffset;
2453
                video_enc->b_quant_offset = video_b_qoffset;
2454
                video_enc->dct_algo = dct_algo;
2455
                video_enc->idct_algo = idct_algo;
2456
                video_enc->strict_std_compliance = strict;
2457
                video_enc->error_rate = error_rate;
2458
                video_enc->noise_reduction= noise_reduction;
2459
                if(packet_size){
2460
                    video_enc->rtp_mode= 1;
2461
                    video_enc->rtp_payload_size= packet_size;
2462
                }
2463
            
2464
                if (do_psnr)
2465
                    video_enc->flags|= CODEC_FLAG_PSNR;
2466
            
2467
                video_enc->me_method = me_method;
2468

    
2469
                /* two pass mode */
2470
                if (do_pass) {
2471
                    if (do_pass == 1) {
2472
                        video_enc->flags |= CODEC_FLAG_PASS1;
2473
                    } else {
2474
                        video_enc->flags |= CODEC_FLAG_PASS2;
2475
                    }
2476
                }
2477
            }
2478
            oc->streams[nb_streams] = st;
2479
            nb_streams++;
2480
        }
2481
    
2482
        if (use_audio) {
2483
            AVCodecContext *audio_enc;
2484

    
2485
            st = av_mallocz(sizeof(AVStream));
2486
            if (!st) {
2487
                fprintf(stderr, "Could not alloc stream\n");
2488
                exit(1);
2489
            }
2490
            avcodec_get_context_defaults(&st->codec);
2491

    
2492
            audio_enc = &st->codec;
2493
            audio_enc->codec_type = CODEC_TYPE_AUDIO;
2494

    
2495
            if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp"))
2496
                audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2497
            if (audio_stream_copy) {
2498
                st->stream_copy = 1;
2499
            } else {
2500
                codec_id = file_oformat->audio_codec;
2501
                if (audio_codec_id != CODEC_ID_NONE)
2502
                    codec_id = audio_codec_id;
2503
                audio_enc->codec_id = codec_id;
2504
                
2505
                audio_enc->bit_rate = audio_bit_rate;
2506
                audio_enc->sample_rate = audio_sample_rate;
2507
                /* For audio codecs other than AC3 we limit */
2508
                /* the number of coded channels to stereo   */
2509
                if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
2510
                    audio_enc->channels = 2;
2511
                } else
2512
                    audio_enc->channels = audio_channels;
2513
            }
2514
            oc->streams[nb_streams] = st;
2515
            nb_streams++;
2516
        }
2517

    
2518
        oc->nb_streams = nb_streams;
2519

    
2520
        if (!nb_streams) {
2521
            fprintf(stderr, "No audio or video streams available\n");
2522
            exit(1);
2523
        }
2524

    
2525
        if (str_title)
2526
            pstrcpy(oc->title, sizeof(oc->title), str_title);
2527
        if (str_author)
2528
            pstrcpy(oc->author, sizeof(oc->author), str_author);
2529
        if (str_copyright)
2530
            pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
2531
        if (str_comment)
2532
            pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
2533
    }
2534

    
2535
    output_files[nb_output_files++] = oc;
2536

    
2537
    strcpy(oc->filename, filename);
2538

    
2539
    /* check filename in case of an image number is expected */
2540
    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2541
        if (filename_number_test(oc->filename) < 0) {
2542
            print_error(oc->filename, AVERROR_NUMEXPECTED);
2543
            exit(1);
2544
        }
2545
    }
2546

    
2547
    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2548
        /* test if it already exists to avoid loosing precious files */
2549
        if (!file_overwrite && 
2550
            (strchr(filename, ':') == NULL ||
2551
             strstart(filename, "file:", NULL))) {
2552
            if (url_exist(filename)) {
2553
                int c;
2554
                
2555
                if ( !using_stdin ) {
2556
                    fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2557
                    fflush(stderr);
2558
                    c = getchar();
2559
                    if (toupper(c) != 'Y') {
2560
                        fprintf(stderr, "Not overwriting - exiting\n");
2561
                        exit(1);
2562
                    }
2563
                                }
2564
                                else {
2565
                    fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2566
                    exit(1);
2567
                                }
2568
            }
2569
        }
2570
        
2571
        /* open the file */
2572
        if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
2573
            fprintf(stderr, "Could not open '%s'\n", filename);
2574
            exit(1);
2575
        }
2576
    }
2577

    
2578
    memset(ap, 0, sizeof(*ap));
2579
    ap->image_format = image_format;
2580
    if (av_set_parameters(oc, ap) < 0) {
2581
        fprintf(stderr, "%s: Invalid encoding parameters\n",
2582
                oc->filename);
2583
        exit(1);
2584
    }
2585

    
2586
    /* reset some options */
2587
    file_oformat = NULL;
2588
    file_iformat = NULL;
2589
    image_format = NULL;
2590
    audio_disable = 0;
2591
    video_disable = 0;
2592
    audio_codec_id = CODEC_ID_NONE;
2593
    video_codec_id = CODEC_ID_NONE;
2594
    audio_stream_copy = 0;
2595
    video_stream_copy = 0;
2596
}
2597

    
2598
/* prepare dummy protocols for grab */
2599
static void prepare_grab(void)
2600
{
2601
    int has_video, has_audio, i, j;
2602
    AVFormatContext *oc;
2603
    AVFormatContext *ic;
2604
    AVFormatParameters vp1, *vp = &vp1;
2605
    AVFormatParameters ap1, *ap = &ap1;
2606
    
2607
    /* see if audio/video inputs are needed */
2608
    has_video = 0;
2609
    has_audio = 0;
2610
    memset(ap, 0, sizeof(*ap));
2611
    memset(vp, 0, sizeof(*vp));
2612
    for(j=0;j<nb_output_files;j++) {
2613
        oc = output_files[j];
2614
        for(i=0;i<oc->nb_streams;i++) {
2615
            AVCodecContext *enc = &oc->streams[i]->codec;
2616
            switch(enc->codec_type) {
2617
            case CODEC_TYPE_AUDIO:
2618
                if (enc->sample_rate > ap->sample_rate)
2619
                    ap->sample_rate = enc->sample_rate;
2620
                if (enc->channels > ap->channels)
2621
                    ap->channels = enc->channels;
2622
                has_audio = 1;
2623
                break;
2624
            case CODEC_TYPE_VIDEO:
2625
                if (enc->width > vp->width)
2626
                    vp->width = enc->width;
2627
                if (enc->height > vp->height)
2628
                    vp->height = enc->height;
2629
                
2630
                assert(enc->frame_rate_base == DEFAULT_FRAME_RATE_BASE);
2631
                if (enc->frame_rate > vp->frame_rate){
2632
                    vp->frame_rate      = enc->frame_rate;
2633
                    vp->frame_rate_base = enc->frame_rate_base;
2634
                }
2635
                has_video = 1;
2636
                break;
2637
            default:
2638
                av_abort();
2639
            }
2640
        }
2641
    }
2642
    
2643
    if (has_video == 0 && has_audio == 0) {
2644
        fprintf(stderr, "Output file must have at least one audio or video stream\n");
2645
        exit(1);
2646
    }
2647
    
2648
    if (has_video) {
2649
        AVInputFormat *fmt1;
2650
        fmt1 = av_find_input_format(video_grab_format);
2651
        vp->device  = video_device;
2652
        vp->channel = video_channel;
2653
        vp->standard = video_standard;
2654
        if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) {
2655
            fprintf(stderr, "Could not find video grab device\n");
2656
            exit(1);
2657
        }
2658
        /* If not enough info to get the stream parameters, we decode the
2659
           first frames to get it. */
2660
        if ((ic->ctx_flags & AVFMTCTX_NOHEADER) && av_find_stream_info(ic) < 0) {
2661
            fprintf(stderr, "Could not find video grab parameters\n");
2662
            exit(1);
2663
        }
2664
        /* by now video grab has one stream */
2665
        ic->streams[0]->r_frame_rate      = vp->frame_rate;
2666
        ic->streams[0]->r_frame_rate_base = vp->frame_rate_base;
2667
        input_files[nb_input_files] = ic;
2668
        dump_format(ic, nb_input_files, "", 0);
2669
        nb_input_files++;
2670
    }
2671
    if (has_audio && audio_grab_format) {
2672
        AVInputFormat *fmt1;
2673
        fmt1 = av_find_input_format(audio_grab_format);
2674
        ap->device = audio_device;
2675
        if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2676
            fprintf(stderr, "Could not find audio grab device\n");
2677
            exit(1);
2678
        }
2679
        input_files[nb_input_files] = ic;
2680
        dump_format(ic, nb_input_files, "", 0);
2681
        nb_input_files++;
2682
    }
2683
}
2684

    
2685
/* same option as mencoder */
2686
static void opt_pass(const char *pass_str)
2687
{
2688
    int pass;
2689
    pass = atoi(pass_str);
2690
    if (pass != 1 && pass != 2) {
2691
        fprintf(stderr, "pass number can be only 1 or 2\n");
2692
        exit(1);
2693
    }
2694
    do_pass = pass;
2695
}
2696

    
2697
#if defined(CONFIG_WIN32) || defined(CONFIG_OS2)
2698
static int64_t getutime(void)
2699
{
2700
  return av_gettime();
2701
}
2702
#else
2703
static int64_t getutime(void)
2704
{
2705
    struct rusage rusage;
2706

    
2707
    getrusage(RUSAGE_SELF, &rusage);
2708
    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2709
}
2710
#endif
2711

    
2712
extern int ffm_nopts;
2713

    
2714
static void opt_bitexact(void)
2715
{
2716
    bitexact=1;
2717
    /* disable generate of real time pts in ffm (need to be supressed anyway) */
2718
    ffm_nopts = 1;
2719
}
2720

    
2721
static void show_formats(void)
2722
{
2723
    AVInputFormat *ifmt;
2724
    AVOutputFormat *ofmt;
2725
    AVImageFormat *image_fmt;
2726
    URLProtocol *up;
2727
    AVCodec *p;
2728
    const char **pp;
2729

    
2730
    printf("Output audio/video file formats:");
2731
    for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2732
        printf(" %s", ofmt->name);
2733
    }
2734
    printf("\n");
2735

    
2736
    printf("Input audio/video file formats:");
2737
    for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2738
        printf(" %s", ifmt->name);
2739
    }
2740
    printf("\n");
2741

    
2742
    printf("Output image formats:");
2743
    for(image_fmt = first_image_format; image_fmt != NULL; 
2744
        image_fmt = image_fmt->next) {
2745
        if (image_fmt->img_write)
2746
            printf(" %s", image_fmt->name);
2747
    }
2748
    printf("\n");
2749

    
2750
    printf("Input image formats:");
2751
    for(image_fmt = first_image_format; image_fmt != NULL; 
2752
        image_fmt = image_fmt->next) {
2753
        if (image_fmt->img_read)
2754
            printf(" %s", image_fmt->name);
2755
    }
2756
    printf("\n");
2757

    
2758
    printf("Codecs:\n");
2759
    printf("  Encoders:");
2760
    for(p = first_avcodec; p != NULL; p = p->next) {
2761
        if (p->encode)
2762
            printf(" %s", p->name);
2763
    }
2764
    printf("\n");
2765

    
2766
    printf("  Decoders:");
2767
    for(p = first_avcodec; p != NULL; p = p->next) {
2768
        if (p->decode)
2769
            printf(" %s", p->name);
2770
    }
2771
    printf("\n");
2772

    
2773
    printf("Supported file protocols:");
2774
    for(up = first_protocol; up != NULL; up = up->next)
2775
        printf(" %s:", up->name);
2776
    printf("\n");
2777
    
2778
    printf("Frame size, frame rate abbreviations: ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
2779
    printf("Motion estimation methods:");
2780
    pp = motion_str;
2781
    while (*pp) {
2782
        printf(" %s", *pp);
2783
        if ((pp - motion_str + 1) == ME_ZERO) 
2784
            printf("(fastest)");
2785
        else if ((pp - motion_str + 1) == ME_FULL) 
2786
            printf("(slowest)");
2787
        else if ((pp - motion_str + 1) == ME_EPZS) 
2788
            printf("(default)");
2789
        pp++;
2790
    }
2791
    printf("\n");
2792
    exit(1);
2793
}
2794

    
2795
void parse_matrix_coeffs(uint16_t *dest, const char *str)
2796
{
2797
    int i;
2798
    const char *p = str;
2799
    for(i = 0;; i++) {
2800
        dest[i] = atoi(p);
2801
        if(i == 63)
2802
            break;
2803
        p = strchr(p, ',');
2804
        if(!p) {
2805
            fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
2806
            exit(1);
2807
        }
2808
        p++;
2809
    }
2810
}
2811

    
2812
void opt_inter_matrix(const char *arg)
2813
{
2814
    inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
2815
    parse_matrix_coeffs(inter_matrix, arg);
2816
}
2817

    
2818
void opt_intra_matrix(const char *arg)
2819
{
2820
    intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
2821
    parse_matrix_coeffs(intra_matrix, arg);
2822
}
2823

    
2824
static void opt_target(const char *arg)
2825
{
2826
    int norm = -1;
2827

    
2828
    if(!strncmp(arg, "pal-", 4)) {
2829
        norm = 0;
2830
        arg += 4;
2831
    } else if(!strncmp(arg, "ntsc-", 5)) {
2832
        norm = 1;
2833
        arg += 5;
2834
    } else {
2835
        int fr;
2836
        /* Calculate FR via float to avoid int overflow */
2837
        fr = (int)(frame_rate * 1000.0 / frame_rate_base);
2838
        if(fr == 25000) {
2839
            norm = 0;
2840
        } else if((fr == 29970) || (fr == 23976)) {
2841
            norm = 1;
2842
        } else {
2843
            /* Try to determine PAL/NTSC by peeking in the input files */
2844
            if(nb_input_files) {
2845
                int i, j;
2846
                for(j = 0; j < nb_input_files; j++) {
2847
                    for(i = 0; i < input_files[j]->nb_streams; i++) {
2848
                        AVCodecContext *c = &input_files[j]->streams[i]->codec;
2849
                        if(c->codec_type != CODEC_TYPE_VIDEO)
2850
                            continue;
2851
                        fr = c->frame_rate * 1000 / c->frame_rate_base;
2852
                        if(fr == 25000) {
2853
                            norm = 0;
2854
                            break;
2855
                        } else if((fr == 29970) || (fr == 23976)) {
2856
                            norm = 1;
2857
                            break;
2858
                        }
2859
                    }
2860
                    if(norm >= 0)
2861
                        break;
2862
                }
2863
            }
2864
        }
2865
        if(verbose && norm >= 0)
2866
            printf("Assuming %s for target.\n", norm ? "NTSC" : "PAL");
2867
    }
2868

    
2869
    if(norm < 0) {
2870
        fprintf(stderr, "Could not determine norm (PAL/NTSC) for target.\n");
2871
        fprintf(stderr, "Please prefix target with \"pal-\" or \"ntsc-\",\n");
2872
        fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
2873
        exit(1);
2874
    }
2875

    
2876
    if(!strcmp(arg, "vcd")) {
2877

    
2878
        opt_video_codec("mpeg1video");
2879
        opt_audio_codec("mp2");
2880
        opt_format("vcd");
2881

    
2882
        opt_frame_size(norm ? "352x240" : "352x288");
2883

    
2884
        video_bit_rate = 1150000;
2885
        video_rc_max_rate = 1150000;
2886
        video_rc_min_rate = 1150000;
2887
        video_rc_buffer_size = 40*1024*8;
2888

    
2889
        audio_bit_rate = 224000;
2890
        audio_sample_rate = 44100;
2891

    
2892
    } else if(!strcmp(arg, "svcd")) {
2893

    
2894
        opt_video_codec("mpeg2video");
2895
        opt_audio_codec("mp2");
2896
        opt_format("vcd");
2897

    
2898
        opt_frame_size(norm ? "480x480" : "480x576");
2899
        opt_gop_size(norm ? "18" : "15");
2900

    
2901
        video_bit_rate = 2040000;
2902
        video_rc_max_rate = 2516000;
2903
        video_rc_min_rate = 0; //1145000;
2904
        video_rc_buffer_size = 224*1024*8;
2905

    
2906
        audio_bit_rate = 224000;
2907
        audio_sample_rate = 44100;
2908

    
2909
    } else if(!strcmp(arg, "dvd")) {
2910

    
2911
        opt_video_codec("mpeg2video");
2912
        opt_audio_codec("ac3");
2913
        opt_format("vob");
2914

    
2915
        opt_frame_size(norm ? "720x480" : "720x576");
2916
        opt_gop_size(norm ? "18" : "15");
2917

    
2918
        video_bit_rate = 6000000;
2919
        video_rc_max_rate = 9000000;
2920
        video_rc_min_rate = 0; //1500000;
2921
        video_rc_buffer_size = 224*1024*8;
2922

    
2923
        audio_bit_rate = 448000;
2924
        audio_sample_rate = 48000;
2925

    
2926
    } else {
2927
        fprintf(stderr, "Unknown target: %s\n", arg);
2928
        exit(1);
2929
    }
2930
}
2931

    
2932
const OptionDef options[] = {
2933
    /* main options */
2934
    { "L", 0, {(void*)show_license}, "show license" },
2935
    { "h", 0, {(void*)show_help}, "show help" },
2936
    { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2937
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2938
    { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
2939
    { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
2940
    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
2941
    { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
2942
    { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
2943
    { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
2944
    { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
2945
    { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
2946
    { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
2947
    { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
2948
    { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2949
    { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2950
    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark}, 
2951
      "add timings for benchmarking" },
2952
    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump}, 
2953
      "dump each input packet" },
2954
    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump}, 
2955
      "when dumping packets, also dump the payload" },
2956
    { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" }, 
2957
    { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
2958
    { "loop", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
2959
    { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
2960
    { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\" or \"dvd\")", "type" },
2961

    
2962
    /* video options */
2963
    { "b", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
2964
    { "r", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2965
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2966
    { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2967
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2968
    { "croptop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
2969
    { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
2970
    { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
2971
    { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
2972
    { "g", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
2973
    { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
2974
    { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" },
2975
    { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
2976
    { "qmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
2977
    { "qmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
2978
    { "mbqmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmin}, "min macroblock quantiser scale (VBR)", "q" },
2979
    { "mbqmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmax}, "max macroblock quantiser scale (VBR)", "q" },
2980
    { "qdiff", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
2981
    { "qblur", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
2982
    { "qcomp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
2983
    { "rc_init_cplx", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" },
2984
    { "b_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
2985
    { "i_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
2986
    { "b_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
2987
    { "i_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
2988
//    { "b_strategy", HAS_ARG | OPT_EXPERT, {(void*)opt_b_strategy}, "dynamic b frame selection strategy", "strategy" },
2989
    { "rc_eq", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_eq}, "set rate control equation", "equation" },
2990
    { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" },
2991
    { "bt", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
2992
    { "maxrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
2993
    { "minrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
2994
    { "bufsize", HAS_ARG | OPT_VIDEO, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kbit)", "size" },
2995
    { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
2996
    { "me", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_motion_estimation}, "set motion estimation method", 
2997
      "method" },
2998
    { "dct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dct_algo}, "set dct algo",  "algo" },
2999
    { "idct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_idct_algo}, "set idct algo",  "algo" },
3000
    { "er", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_resilience}, "set error resilience",  "n" },
3001
    { "ec", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_concealment}, "set error concealment",  "bit_mask" },
3002
    { "bf", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_frames}, "use 'frames' B frames", "frames" },
3003
    { "hq", OPT_BOOL, {(void*)&mb_decision}, "activate high quality settings" },
3004
    { "mbd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_decision}, "macroblock decision", "mode" },
3005
    { "mbcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_cmp}, "macroblock compare function", "cmp function" },
3006
    { "subcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_sub_cmp}, "subpel compare function", "cmp function" },
3007
    { "cmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_cmp}, "fullpel compare function", "cmp function" },
3008
    { "4mv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_4mv}, "use four motion vector by macroblock (MPEG4)" },
3009
    { "obmc", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_obmc}, "use overlapped block motion compensation (h263+)" },
3010
    { "part", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_part}, "use data partitioning (MPEG4)" },
3011
    { "bug", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
3012
    { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "set packet size in bits", "size" },
3013
    { "error", HAS_ARG | OPT_EXPERT, {(void*)opt_error_rate}, "error rate", "rate" },
3014
    { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standarts", "strictness" },
3015
    { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality}, 
3016
      "use same video quality as source (implies VBR)" },
3017
    { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
3018
    { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
3019
    { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace}, 
3020
      "deinterlace pictures" },
3021
    { "ildct", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_interlace_dct}, 
3022
      "force interlaced dct support in encoder (MPEG2/MPEG4)" },
3023
    { "ilme", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_interlace_me}, 
3024
      "force interlacied me support in encoder MPEG2" },
3025
    { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
3026
    { "vstats", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_vstats}, "dump video coding statistics to file" }, 
3027
    { "vhook", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)add_frame_hooker}, "insert video processing module", "module" },
3028
    { "aic", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aic}, "enable Advanced intra coding (h263+)" },
3029
    { "aiv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aiv}, "enable Alternative inter vlc (h263+)" },
3030
    { "umv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_umv}, "enable Unlimited Motion Vector (h263+)" },
3031
    { "alt", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_alt_scan}, "enable alternate scantable (mpeg2)" },
3032
    { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" },
3033
    { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
3034
    { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
3035
    { "nr", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_noise_reduction}, "noise reduction", "" },
3036

    
3037
    /* audio options */
3038
    { "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
3039
    { "ar", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
3040
    { "ac", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
3041
    { "an", OPT_BOOL | OPT_AUDIO, {(void*)&audio_disable}, "disable audio" },
3042
    { "acodec", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
3043

    
3044
    /* grab options */
3045
    { "vd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_device}, "set video grab device", "device" },
3046
    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },
3047
    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "set television standard (NTSC, PAL (SECAM))", "standard" },
3048
    { "dv1394", OPT_EXPERT | OPT_GRAB, {(void*)opt_dv1394}, "set DV1394 grab", "" },
3049
    { "ad", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_GRAB, {(void*)opt_audio_device}, "set audio device", "device" },
3050
    { NULL, },
3051
};
3052

    
3053
static void show_banner(void)
3054
{
3055
    printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000-2003 Fabrice Bellard\n");
3056
}
3057

    
3058
static void show_license(void)
3059
{
3060
    show_banner();
3061
    printf(
3062
    "This library is free software; you can redistribute it and/or\n"
3063
    "modify it under the terms of the GNU Lesser General Public\n"
3064
    "License as published by the Free Software Foundation; either\n"
3065
    "version 2 of the License, or (at your option) any later version.\n"
3066
    "\n"
3067
    "This library is distributed in the hope that it will be useful,\n"
3068
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
3069
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
3070
    "Lesser General Public License for more details.\n"
3071
    "\n"
3072
    "You should have received a copy of the GNU Lesser General Public\n"
3073
    "License along with this library; if not, write to the Free Software\n"
3074
    "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\n"
3075
    );
3076
    exit(1);
3077
}
3078

    
3079
static void show_help(void)
3080
{
3081
    show_banner();
3082
    printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
3083
           "Hyper fast Audio and Video encoder\n");
3084
    printf("\n");
3085
    show_help_options(options, "Main options:\n",
3086
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO, 0);
3087
    show_help_options(options, "\nVideo options:\n",
3088
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, 
3089
                      OPT_VIDEO);
3090
    show_help_options(options, "\nAdvanced Video options:\n",
3091
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, 
3092
                      OPT_VIDEO | OPT_EXPERT);
3093
    show_help_options(options, "\nAudio options:\n",
3094
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, 
3095
                      OPT_AUDIO);
3096
    show_help_options(options, "\nAdvanced Audio options:\n",
3097
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, 
3098
                      OPT_AUDIO | OPT_EXPERT);
3099
    show_help_options(options, "\nAudio/Video grab options:\n",
3100
                      OPT_GRAB, 
3101
                      OPT_GRAB);
3102
    show_help_options(options, "\nAdvanced options:\n",
3103
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB, 
3104
                      OPT_EXPERT);
3105
    exit(1);
3106
}
3107

    
3108
void parse_arg_file(const char *filename)
3109
{
3110
    opt_output_file(filename);
3111
}
3112

    
3113
int main(int argc, char **argv)
3114
{
3115
    int i;
3116
    int64_t ti;
3117

    
3118
    av_register_all();
3119

    
3120
    if (argc <= 1)
3121
        show_help();
3122
    
3123
    /* parse options */
3124
    parse_options(argc, argv, options);
3125

    
3126
    /* file converter / grab */
3127
    if (nb_output_files <= 0) {
3128
        fprintf(stderr, "Must supply at least one output file\n");
3129
        exit(1);
3130
    }
3131
    
3132
    if (nb_input_files == 0) {
3133
        prepare_grab();
3134
    }
3135

    
3136
    ti = getutime();
3137
    av_encode(output_files, nb_output_files, input_files, nb_input_files, 
3138
              stream_maps, nb_stream_maps);
3139
    ti = getutime() - ti;
3140
    if (do_benchmark) {
3141
        printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3142
    }
3143

    
3144
    /* close files */
3145
    for(i=0;i<nb_output_files;i++) {
3146
        /* maybe av_close_output_file ??? */
3147
        AVFormatContext *s = output_files[i];
3148
        int j;
3149
        if (!(s->oformat->flags & AVFMT_NOFILE))
3150
            url_fclose(&s->pb);
3151
        for(j=0;j<s->nb_streams;j++)
3152
            av_free(s->streams[j]);
3153
        av_free(s);
3154
    }
3155
    for(i=0;i<nb_input_files;i++)
3156
        av_close_input_file(input_files[i]);
3157

    
3158
    av_free_static();
3159

    
3160
    if(intra_matrix)
3161
        av_free(intra_matrix);
3162
    if(inter_matrix)
3163
        av_free(inter_matrix);
3164
    
3165
#ifdef POWERPC_PERFORMANCE_REPORT
3166
    extern void powerpc_display_perf_report(void);
3167
    powerpc_display_perf_report();
3168
#endif /* POWERPC_PERFORMANCE_REPORT */
3169

    
3170
#ifndef CONFIG_WIN32
3171
    if (received_sigterm) {
3172
        fprintf(stderr,
3173
            "Received signal %d: terminating.\n",
3174
            (int) received_sigterm);
3175
        exit (255);
3176
    }
3177
#endif
3178
    exit(0); /* not all OS-es handle main() return value */
3179
    return 0;
3180
}