Correctly handle empty frames
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include "avformat.h"
31 #include "avdevice.h"
32 #include "swscale.h"
33 #include "framehook.h"
34 #include "opt.h"
35 #include "fifo.h"
36 #include "avstring.h"
37 #include "os_support.h"
38
39 #if !defined(HAVE_GETRUSAGE) && defined(HAVE_GETPROCESSTIMES)
40 #include <windows.h>
41 #endif
42
43 #if defined(HAVE_TERMIOS_H)
44 #include <unistd.h>
45 #include <fcntl.h>
46 #include <sys/ioctl.h>
47 #include <sys/time.h>
48 #include <termios.h>
49 #include <sys/resource.h>
50 #elif defined(HAVE_CONIO_H)
51 #include <conio.h>
52 #endif
53 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
54 #include <time.h>
55
56 #include "version.h"
57 #include "cmdutils.h"
58
59 #undef NDEBUG
60 #include <assert.h>
61
62 #undef exit
63
64 static const char program_name[] = "FFmpeg";
65 static const int program_birth_year = 2000;
66
67 /* select an input stream for an output stream */
68 typedef struct AVStreamMap {
69 int file_index;
70 int stream_index;
71 int sync_file_index;
72 int sync_stream_index;
73 } AVStreamMap;
74
75 /** select an input file for an output file */
76 typedef struct AVMetaDataMap {
77 int out_file;
78 int in_file;
79 } AVMetaDataMap;
80
81 extern const OptionDef options[];
82
83 #define MAX_FILES 20
84
85 static AVFormatContext *input_files[MAX_FILES];
86 static int64_t input_files_ts_offset[MAX_FILES];
87 static int nb_input_files = 0;
88
89 static AVFormatContext *output_files[MAX_FILES];
90 static int nb_output_files = 0;
91
92 static AVStreamMap stream_maps[MAX_FILES];
93 static int nb_stream_maps;
94
95 static AVMetaDataMap meta_data_maps[MAX_FILES];
96 static int nb_meta_data_maps;
97
98 static AVInputFormat *file_iformat;
99 static AVOutputFormat *file_oformat;
100 static int frame_width = 0;
101 static int frame_height = 0;
102 static float frame_aspect_ratio = 0;
103 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
104 static int frame_padtop = 0;
105 static int frame_padbottom = 0;
106 static int frame_padleft = 0;
107 static int frame_padright = 0;
108 static int padcolor[3] = {16,128,128}; /* default to black */
109 static int frame_topBand = 0;
110 static int frame_bottomBand = 0;
111 static int frame_leftBand = 0;
112 static int frame_rightBand = 0;
113 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
114 static AVRational frame_rate = (AVRational) {0,0};
115 static float video_qscale = 0;
116 static int video_qdiff = 3;
117 static uint16_t *intra_matrix = NULL;
118 static uint16_t *inter_matrix = NULL;
119 #if 0 //experimental, (can be removed)
120 static float video_rc_qsquish=1.0;
121 static float video_rc_qmod_amp=0;
122 static int video_rc_qmod_freq=0;
123 #endif
124 static const char *video_rc_override_string=NULL;
125 static int video_disable = 0;
126 static int video_discard = 0;
127 static char *video_codec_name = NULL;
128 static int video_codec_tag = 0;
129 static int same_quality = 0;
130 static int do_deinterlace = 0;
131 static int strict = 0;
132 static int top_field_first = -1;
133 static int me_threshold = 0;
134 static int intra_dc_precision = 8;
135 static int loop_input = 0;
136 static int loop_output = AVFMT_NOOUTPUTLOOP;
137 static int qp_hist = 0;
138
139 static int intra_only = 0;
140 static int audio_sample_rate = 44100;
141 #define QSCALE_NONE -99999
142 static float audio_qscale = QSCALE_NONE;
143 static int audio_disable = 0;
144 static int audio_channels = 1;
145 static char *audio_codec_name = NULL;
146 static int audio_codec_tag = 0;
147 static char *audio_language = NULL;
148
149 static int subtitle_disable = 0;
150 static char *subtitle_codec_name = NULL;
151 static char *subtitle_language = NULL;
152
153 static float mux_preload= 0.5;
154 static float mux_max_delay= 0.7;
155
156 static int64_t recording_time = 0;
157 static int64_t start_time = 0;
158 static int64_t rec_timestamp = 0;
159 static int64_t input_ts_offset = 0;
160 static int file_overwrite = 0;
161 static char *str_title = NULL;
162 static char *str_author = NULL;
163 static char *str_copyright = NULL;
164 static char *str_comment = NULL;
165 static char *str_genre = NULL;
166 static char *str_album = NULL;
167 static int do_benchmark = 0;
168 static int do_hex_dump = 0;
169 static int do_pkt_dump = 0;
170 static int do_psnr = 0;
171 static int do_pass = 0;
172 static char *pass_logfilename = NULL;
173 static int audio_stream_copy = 0;
174 static int video_stream_copy = 0;
175 static int subtitle_stream_copy = 0;
176 static int video_sync_method= 1;
177 static int audio_sync_method= 0;
178 static float audio_drift_threshold= 0.1;
179 static int copy_ts= 0;
180 static int opt_shortest = 0; //
181 static int video_global_header = 0;
182 static char *vstats_filename;
183 static FILE *vstats_file;
184 static int opt_programid = 0;
185
186 static int rate_emu = 0;
187
188 static int video_channel = 0;
189 static char *video_standard;
190
191 static int audio_volume = 256;
192
193 static int using_stdin = 0;
194 static int using_vhook = 0;
195 static int verbose = 1;
196 static int thread_count= 1;
197 static int q_pressed = 0;
198 static int64_t video_size = 0;
199 static int64_t audio_size = 0;
200 static int64_t extra_size = 0;
201 static int nb_frames_dup = 0;
202 static int nb_frames_drop = 0;
203 static int input_sync;
204 static uint64_t limit_filesize = 0; //
205
206 static int pgmyuv_compatibility_hack=0;
207 static float dts_delta_threshold = 10;
208
209 static unsigned int sws_flags = SWS_BICUBIC;
210
211 static const char **opt_names;
212 static int opt_name_count;
213 static AVCodecContext *avctx_opts[CODEC_TYPE_NB];
214 static AVFormatContext *avformat_opts;
215 static struct SwsContext *sws_opts;
216 static int64_t timer_start;
217
218 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
219 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
220 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
221 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
222
223 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
224
225 struct AVInputStream;
226
227 typedef struct AVOutputStream {
228 int file_index; /* file index */
229 int index; /* stream index in the output file */
230 int source_index; /* AVInputStream index */
231 AVStream *st; /* stream in the output file */
232 int encoding_needed; /* true if encoding needed for this stream */
233 int frame_number;
234 /* input pts and corresponding output pts
235 for A/V sync */
236 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
237 struct AVInputStream *sync_ist; /* input stream to sync against */
238 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
239 /* video only */
240 int video_resample;
241 AVFrame pict_tmp; /* temporary image for resampling */
242 struct SwsContext *img_resample_ctx; /* for image resampling */
243 int resample_height;
244
245 int video_crop;
246 int topBand; /* cropping area sizes */
247 int leftBand;
248
249 int video_pad;
250 int padtop; /* padding area sizes */
251 int padbottom;
252 int padleft;
253 int padright;
254
255 /* audio only */
256 int audio_resample;
257 ReSampleContext *resample; /* for audio resampling */
258 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
259 FILE *logfile;
260 } AVOutputStream;
261
262 typedef struct AVInputStream {
263 int file_index;
264 int index;
265 AVStream *st;
266 int discard; /* true if stream data should be discarded */
267 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
268 int64_t sample_index; /* current sample */
269
270 int64_t start; /* time when read started */
271 unsigned long frame; /* current frame */
272 int64_t next_pts; /* synthetic pts for cases where pkt.pts
273 is not defined */
274 int64_t pts; /* current pts */
275 int is_start; /* is 1 at the start and after a discontinuity */
276 } AVInputStream;
277
278 typedef struct AVInputFile {
279 int eof_reached; /* true if eof reached */
280 int ist_index; /* index of first stream in ist_table */
281 int buffer_size; /* current total buffer size */
282 int nb_streams; /* nb streams we are aware of */
283 } AVInputFile;
284
285 #ifdef HAVE_TERMIOS_H
286
287 /* init terminal so that we can grab keys */
288 static struct termios oldtty;
289 #endif
290
291 static void term_exit(void)
292 {
293 #ifdef HAVE_TERMIOS_H
294 tcsetattr (0, TCSANOW, &oldtty);
295 #endif
296 }
297
298 static volatile sig_atomic_t received_sigterm = 0;
299
300 static void
301 sigterm_handler(int sig)
302 {
303 received_sigterm = sig;
304 term_exit();
305 }
306
307 static void term_init(void)
308 {
309 #ifdef HAVE_TERMIOS_H
310 struct termios tty;
311
312 tcgetattr (0, &tty);
313 oldtty = tty;
314
315 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
316 |INLCR|IGNCR|ICRNL|IXON);
317 tty.c_oflag |= OPOST;
318 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
319 tty.c_cflag &= ~(CSIZE|PARENB);
320 tty.c_cflag |= CS8;
321 tty.c_cc[VMIN] = 1;
322 tty.c_cc[VTIME] = 0;
323
324 tcsetattr (0, TCSANOW, &tty);
325 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
326 #endif
327
328 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
329 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
330 /*
331 register a function to be called at normal program termination
332 */
333 atexit(term_exit);
334 #ifdef CONFIG_BEOS_NETSERVER
335 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
336 #endif
337 }
338
339 /* read a key without blocking */
340 static int read_key(void)
341 {
342 #if defined(HAVE_TERMIOS_H)
343 int n = 1;
344 unsigned char ch;
345 #ifndef CONFIG_BEOS_NETSERVER
346 struct timeval tv;
347 fd_set rfds;
348
349 FD_ZERO(&rfds);
350 FD_SET(0, &rfds);
351 tv.tv_sec = 0;
352 tv.tv_usec = 0;
353 n = select(1, &rfds, NULL, NULL, &tv);
354 #endif
355 if (n > 0) {
356 n = read(0, &ch, 1);
357 if (n == 1)
358 return ch;
359
360 return n;
361 }
362 #elif defined(HAVE_CONIO_H)
363 if(kbhit())
364 return(getch());
365 #endif
366 return -1;
367 }
368
369 static int decode_interrupt_cb(void)
370 {
371 return q_pressed || (q_pressed = read_key() == 'q');
372 }
373
374 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
375 {
376 int i, err;
377 AVFormatContext *ic;
378
379 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
380 if (err < 0)
381 return err;
382 /* copy stream format */
383 s->nb_streams = ic->nb_streams;
384 for(i=0;i<ic->nb_streams;i++) {
385 AVStream *st;
386
387 // FIXME: a more elegant solution is needed
388 st = av_mallocz(sizeof(AVStream));
389 memcpy(st, ic->streams[i], sizeof(AVStream));
390 st->codec = avcodec_alloc_context();
391 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
392 s->streams[i] = st;
393 }
394
395 av_close_input_file(ic);
396 return 0;
397 }
398
399 static double
400 get_sync_ipts(const AVOutputStream *ost)
401 {
402 const AVInputStream *ist = ost->sync_ist;
403 return (double)(ist->pts - start_time)/AV_TIME_BASE;
404 }
405
406 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
407 int ret;
408
409 while(bsfc){
410 AVPacket new_pkt= *pkt;
411 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
412 &new_pkt.data, &new_pkt.size,
413 pkt->data, pkt->size,
414 pkt->flags & PKT_FLAG_KEY);
415 if(a>0){
416 av_free_packet(pkt);
417 new_pkt.destruct= av_destruct_packet;
418 } else if(a<0){
419 fprintf(stderr, "%s failed for stream %d, codec %s",
420 bsfc->filter->name, pkt->stream_index,
421 avctx->codec ? avctx->codec->name : "copy");
422 print_error("", a);
423 }
424 *pkt= new_pkt;
425
426 bsfc= bsfc->next;
427 }
428
429 ret= av_interleaved_write_frame(s, pkt);
430 if(ret < 0){
431 print_error("av_interleaved_write_frame()", ret);
432 exit(1);
433 }
434 }
435
436 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
437
438 static void do_audio_out(AVFormatContext *s,
439 AVOutputStream *ost,
440 AVInputStream *ist,
441 unsigned char *buf, int size)
442 {
443 uint8_t *buftmp;
444 static uint8_t *audio_buf = NULL;
445 static uint8_t *audio_out = NULL;
446 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
447
448 int size_out, frame_bytes, ret;
449 AVCodecContext *enc= ost->st->codec;
450 AVCodecContext *dec= ist->st->codec;
451
452 /* SC: dynamic allocation of buffers */
453 if (!audio_buf)
454 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
455 if (!audio_out)
456 audio_out = av_malloc(audio_out_size);
457 if (!audio_buf || !audio_out)
458 return; /* Should signal an error ! */
459
460 if (enc->channels != dec->channels)
461 ost->audio_resample = 1;
462
463 if (ost->audio_resample && !ost->resample) {
464 ost->resample = audio_resample_init(enc->channels, dec->channels,
465 enc->sample_rate, dec->sample_rate);
466 if (!ost->resample) {
467 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
468 dec->channels, dec->sample_rate,
469 enc->channels, enc->sample_rate);
470 exit(1);
471 }
472 }
473
474 if(audio_sync_method){
475 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
476 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
477 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
478 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
479
480 //FIXME resample delay
481 if(fabs(delta) > 50){
482 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
483 if(byte_delta < 0){
484 byte_delta= FFMAX(byte_delta, -size);
485 size += byte_delta;
486 buf -= byte_delta;
487 if(verbose > 2)
488 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
489 if(!size)
490 return;
491 ist->is_start=0;
492 }else{
493 static uint8_t *input_tmp= NULL;
494 input_tmp= av_realloc(input_tmp, byte_delta + size);
495
496 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
497 ist->is_start=0;
498 else
499 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
500
501 memset(input_tmp, 0, byte_delta);
502 memcpy(input_tmp + byte_delta, buf, size);
503 buf= input_tmp;
504 size += byte_delta;
505 if(verbose > 2)
506 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
507 }
508 }else if(audio_sync_method>1){
509 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
510 assert(ost->audio_resample);
511 if(verbose > 2)
512 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
513 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2));
514 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
515 }
516 }
517 }else
518 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
519 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
520
521 if (ost->audio_resample) {
522 buftmp = audio_buf;
523 size_out = audio_resample(ost->resample,
524 (short *)buftmp, (short *)buf,
525 size / (ist->st->codec->channels * 2));
526 size_out = size_out * enc->channels * 2;
527 } else {
528 buftmp = buf;
529 size_out = size;
530 }
531
532 /* now encode as many frames as possible */
533 if (enc->frame_size > 1) {
534 /* output resampled raw samples */
535 av_fifo_realloc(&ost->fifo, av_fifo_size(&ost->fifo) + size_out + 1);
536 av_fifo_write(&ost->fifo, buftmp, size_out);
537
538 frame_bytes = enc->frame_size * 2 * enc->channels;
539
540 while (av_fifo_read(&ost->fifo, audio_buf, frame_bytes) == 0) {
541 AVPacket pkt;
542 av_init_packet(&pkt);
543
544 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
545
546 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
547 (short *)audio_buf);
548 audio_size += ret;
549 pkt.stream_index= ost->index;
550 pkt.data= audio_out;
551 pkt.size= ret;
552 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
553 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
554 pkt.flags |= PKT_FLAG_KEY;
555 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
556
557 ost->sync_opts += enc->frame_size;
558 }
559 } else {
560 AVPacket pkt;
561 av_init_packet(&pkt);
562
563 ost->sync_opts += size_out / (2 * enc->channels);
564
565 /* output a pcm frame */
566 /* XXX: change encoding codec API to avoid this ? */
567 switch(enc->codec->id) {
568 case CODEC_ID_PCM_S32LE:
569 case CODEC_ID_PCM_S32BE:
570 case CODEC_ID_PCM_U32LE:
571 case CODEC_ID_PCM_U32BE:
572 size_out = size_out << 1;
573 break;
574 case CODEC_ID_PCM_S24LE:
575 case CODEC_ID_PCM_S24BE:
576 case CODEC_ID_PCM_U24LE:
577 case CODEC_ID_PCM_U24BE:
578 case CODEC_ID_PCM_S24DAUD:
579 size_out = size_out / 2 * 3;
580 break;
581 case CODEC_ID_PCM_S16LE:
582 case CODEC_ID_PCM_S16BE:
583 case CODEC_ID_PCM_U16LE:
584 case CODEC_ID_PCM_U16BE:
585 break;
586 default:
587 size_out = size_out >> 1;
588 break;
589 }
590 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
591 ret = avcodec_encode_audio(enc, audio_out, size_out,
592 (short *)buftmp);
593 audio_size += ret;
594 pkt.stream_index= ost->index;
595 pkt.data= audio_out;
596 pkt.size= ret;
597 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
598 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
599 pkt.flags |= PKT_FLAG_KEY;
600 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
601 }
602 }
603
604 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
605 {
606 AVCodecContext *dec;
607 AVPicture *picture2;
608 AVPicture picture_tmp;
609 uint8_t *buf = 0;
610
611 dec = ist->st->codec;
612
613 /* deinterlace : must be done before any resize */
614 if (do_deinterlace || using_vhook) {
615 int size;
616
617 /* create temporary picture */
618 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
619 buf = av_malloc(size);
620 if (!buf)
621 return;
622
623 picture2 = &picture_tmp;
624 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
625
626 if (do_deinterlace){
627 if(avpicture_deinterlace(picture2, picture,
628 dec->pix_fmt, dec->width, dec->height) < 0) {
629 /* if error, do not deinterlace */
630 av_free(buf);
631 buf = NULL;
632 picture2 = picture;
633 }
634 } else {
635 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
636 }
637 } else {
638 picture2 = picture;
639 }
640
641 if (ENABLE_VHOOK)
642 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
643 1000000 * ist->pts / AV_TIME_BASE);
644
645 if (picture != picture2)
646 *picture = *picture2;
647 *bufp = buf;
648 }
649
650 /* we begin to correct av delay at this threshold */
651 #define AV_DELAY_MAX 0.100
652
653 static void do_subtitle_out(AVFormatContext *s,
654 AVOutputStream *ost,
655 AVInputStream *ist,
656 AVSubtitle *sub,
657 int64_t pts)
658 {
659 static uint8_t *subtitle_out = NULL;
660 int subtitle_out_max_size = 65536;
661 int subtitle_out_size, nb, i;
662 AVCodecContext *enc;
663 AVPacket pkt;
664
665 if (pts == AV_NOPTS_VALUE) {
666 fprintf(stderr, "Subtitle packets must have a pts\n");
667 return;
668 }
669
670 enc = ost->st->codec;
671
672 if (!subtitle_out) {
673 subtitle_out = av_malloc(subtitle_out_max_size);
674 }
675
676 /* Note: DVB subtitle need one packet to draw them and one other
677 packet to clear them */
678 /* XXX: signal it in the codec context ? */
679 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
680 nb = 2;
681 else
682 nb = 1;
683
684 for(i = 0; i < nb; i++) {
685 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
686 subtitle_out_max_size, sub);
687
688 av_init_packet(&pkt);
689 pkt.stream_index = ost->index;
690 pkt.data = subtitle_out;
691 pkt.size = subtitle_out_size;
692 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
693 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
694 /* XXX: the pts correction is handled here. Maybe handling
695 it in the codec would be better */
696 if (i == 0)
697 pkt.pts += 90 * sub->start_display_time;
698 else
699 pkt.pts += 90 * sub->end_display_time;
700 }
701 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
702 }
703 }
704
705 static int bit_buffer_size= 1024*256;
706 static uint8_t *bit_buffer= NULL;
707
708 static void do_video_out(AVFormatContext *s,
709 AVOutputStream *ost,
710 AVInputStream *ist,
711 AVFrame *in_picture,
712 int *frame_size)
713 {
714 int nb_frames, i, ret;
715 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
716 AVFrame picture_crop_temp, picture_pad_temp;
717 AVCodecContext *enc, *dec;
718
719 avcodec_get_frame_defaults(&picture_crop_temp);
720 avcodec_get_frame_defaults(&picture_pad_temp);
721
722 enc = ost->st->codec;
723 dec = ist->st->codec;
724
725 /* by default, we output a single frame */
726 nb_frames = 1;
727
728 *frame_size = 0;
729
730 if(video_sync_method){
731 double vdelta;
732 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
733 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
734 if (vdelta < -1.1)
735 nb_frames = 0;
736 else if (video_sync_method == 2)
737 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
738 else if (vdelta > 1.1)
739 nb_frames = lrintf(vdelta);
740 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);
741 if (nb_frames == 0){
742 ++nb_frames_drop;
743 if (verbose>2)
744 fprintf(stderr, "*** drop!\n");
745 }else if (nb_frames > 1) {
746 nb_frames_dup += nb_frames;
747 if (verbose>2)
748 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
749 }
750 }else
751 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
752
753 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
754 if (nb_frames <= 0)
755 return;
756
757 if (ost->video_crop) {
758 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
759 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
760 return;
761 }
762 formatted_picture = &picture_crop_temp;
763 } else {
764 formatted_picture = in_picture;
765 }
766
767 final_picture = formatted_picture;
768 padding_src = formatted_picture;
769 resampling_dst = &ost->pict_tmp;
770 if (ost->video_pad) {
771 final_picture = &ost->pict_tmp;
772 if (ost->video_resample) {
773 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
774 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
775 return;
776 }
777 resampling_dst = &picture_pad_temp;
778 }
779 }
780
781 if (ost->video_resample) {
782 padding_src = NULL;
783 final_picture = &ost->pict_tmp;
784 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
785 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
786 }
787
788 if (ost->video_pad) {
789 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
790 enc->height, enc->width, enc->pix_fmt,
791 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
792 }
793
794 /* duplicates frame if needed */
795 for(i=0;i<nb_frames;i++) {
796 AVPacket pkt;
797 av_init_packet(&pkt);
798 pkt.stream_index= ost->index;
799
800 if (s->oformat->flags & AVFMT_RAWPICTURE) {
801 /* raw pictures are written as AVPicture structure to
802 avoid any copies. We support temorarily the older
803 method. */
804 AVFrame* old_frame = enc->coded_frame;
805 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
806 pkt.data= (uint8_t *)final_picture;
807 pkt.size= sizeof(AVPicture);
808 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
809 pkt.flags |= PKT_FLAG_KEY;
810
811 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
812 enc->coded_frame = old_frame;
813 } else {
814 AVFrame big_picture;
815
816 big_picture= *final_picture;
817 /* better than nothing: use input picture interlaced
818 settings */
819 big_picture.interlaced_frame = in_picture->interlaced_frame;
820 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
821 if(top_field_first == -1)
822 big_picture.top_field_first = in_picture->top_field_first;
823 else
824 big_picture.top_field_first = top_field_first;
825 }
826
827 /* handles sameq here. This is not correct because it may
828 not be a global option */
829 if (same_quality) {
830 big_picture.quality = ist->st->quality;
831 }else
832 big_picture.quality = ost->st->quality;
833 if(!me_threshold)
834 big_picture.pict_type = 0;
835 // big_picture.pts = AV_NOPTS_VALUE;
836 big_picture.pts= ost->sync_opts;
837 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
838 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
839 ret = avcodec_encode_video(enc,
840 bit_buffer, bit_buffer_size,
841 &big_picture);
842 if (ret == -1) {
843 fprintf(stderr, "Video encoding failed\n");
844 exit(1);
845 }
846 //enc->frame_number = enc->real_pict_num;
847 if(ret>0){
848 pkt.data= bit_buffer;
849 pkt.size= ret;
850 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
851 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
852 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
853 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
854 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
855
856 if(enc->coded_frame && enc->coded_frame->key_frame)
857 pkt.flags |= PKT_FLAG_KEY;
858 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
859 *frame_size = ret;
860 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
861 // enc->frame_number-1, enc->real_pict_num, ret,
862 // enc->pict_type);
863 /* if two pass, output log */
864 if (ost->logfile && enc->stats_out) {
865 fprintf(ost->logfile, "%s", enc->stats_out);
866 }
867 }
868 }
869 ost->sync_opts++;
870 ost->frame_number++;
871 }
872 }
873
874 static double psnr(double d){
875 return -10.0*log(d)/log(10.0);
876 }
877
878 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
879 int frame_size)
880 {
881 AVCodecContext *enc;
882 int frame_number;
883 double ti1, bitrate, avg_bitrate;
884
885 /* this is executed just the first time do_video_stats is called */
886 if (!vstats_file) {
887 vstats_file = fopen(vstats_filename, "w");
888 if (!vstats_file) {
889 perror("fopen");
890 exit(1);
891 }
892 }
893
894 enc = ost->st->codec;
895 if (enc->codec_type == CODEC_TYPE_VIDEO) {
896 frame_number = ost->frame_number;
897 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
898 if (enc->flags&CODEC_FLAG_PSNR)
899 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
900
901 fprintf(vstats_file,"f_size= %6d ", frame_size);
902 /* compute pts value */
903 ti1 = ost->sync_opts * av_q2d(enc->time_base);
904 if (ti1 < 0.01)
905 ti1 = 0.01;
906
907 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
908 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
909 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
910 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
911 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
912 }
913 }
914
915 static void print_report(AVFormatContext **output_files,
916 AVOutputStream **ost_table, int nb_ostreams,
917 int is_last_report)
918 {
919 char buf[1024];
920 AVOutputStream *ost;
921 AVFormatContext *oc, *os;
922 int64_t total_size;
923 AVCodecContext *enc;
924 int frame_number, vid, i;
925 double bitrate, ti1, pts;
926 static int64_t last_time = -1;
927 static int qp_histogram[52];
928
929 if (!is_last_report) {
930 int64_t cur_time;
931 /* display the report every 0.5 seconds */
932 cur_time = av_gettime();
933 if (last_time == -1) {
934 last_time = cur_time;
935 return;
936 }
937 if ((cur_time - last_time) < 500000)
938 return;
939 last_time = cur_time;
940 }
941
942
943 oc = output_files[0];
944
945 total_size = url_fsize(oc->pb);
946 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
947 total_size= url_ftell(oc->pb);
948
949 buf[0] = '\0';
950 ti1 = 1e10;
951 vid = 0;
952 for(i=0;i<nb_ostreams;i++) {
953 ost = ost_table[i];
954 os = output_files[ost->file_index];
955 enc = ost->st->codec;
956 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
957 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
958 enc->coded_frame && !ost->st->stream_copy ?
959 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
960 }
961 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
962 float t = (av_gettime()-timer_start) / 1000000.0;
963
964 frame_number = ost->frame_number;
965 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
966 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
967 enc->coded_frame && !ost->st->stream_copy ?
968 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
969 if(is_last_report)
970 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
971 if(qp_hist && enc->coded_frame){
972 int j;
973 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
974 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
975 qp_histogram[qp]++;
976 for(j=0; j<32; j++)
977 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
978 }
979 if (enc->flags&CODEC_FLAG_PSNR){
980 int j;
981 double error, error_sum=0;
982 double scale, scale_sum=0;
983 char type[3]= {'Y','U','V'};
984 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
985 for(j=0; j<3; j++){
986 if(is_last_report){
987 error= enc->error[j];
988 scale= enc->width*enc->height*255.0*255.0*frame_number;
989 }else{
990 error= enc->coded_frame->error[j];
991 scale= enc->width*enc->height*255.0*255.0;
992 }
993 if(j) scale/=4;
994 error_sum += error;
995 scale_sum += scale;
996 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
997 }
998 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
999 }
1000 vid = 1;
1001 }
1002 /* compute min output value */
1003 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1004 if ((pts < ti1) && (pts > 0))
1005 ti1 = pts;
1006 }
1007 if (ti1 < 0.01)
1008 ti1 = 0.01;
1009
1010 if (verbose || is_last_report) {
1011 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1012
1013 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1014 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1015 (double)total_size / 1024, ti1, bitrate);
1016
1017 if (verbose > 1)
1018 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1019 nb_frames_dup, nb_frames_drop);
1020
1021 if (verbose >= 0)
1022 fprintf(stderr, "%s \r", buf);
1023
1024 fflush(stderr);
1025 }
1026
1027 if (is_last_report && verbose >= 0){
1028 int64_t raw= audio_size + video_size + extra_size;
1029 fprintf(stderr, "\n");
1030 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1031 video_size/1024.0,
1032 audio_size/1024.0,
1033 extra_size/1024.0,
1034 100.0*(total_size - raw)/raw
1035 );
1036 }
1037 }
1038
1039 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1040 static int output_packet(AVInputStream *ist, int ist_index,
1041 AVOutputStream **ost_table, int nb_ostreams,
1042 const AVPacket *pkt)
1043 {
1044 AVFormatContext *os;
1045 AVOutputStream *ost;
1046 uint8_t *ptr;
1047 int len, ret, i;
1048 uint8_t *data_buf;
1049 int data_size, got_picture;
1050 AVFrame picture;
1051 void *buffer_to_free;
1052 static unsigned int samples_size= 0;
1053 static short *samples= NULL;
1054 AVSubtitle subtitle, *subtitle_to_free;
1055 int got_subtitle;
1056
1057 if(ist->next_pts == AV_NOPTS_VALUE)
1058 ist->next_pts= ist->pts;
1059
1060 if (pkt == NULL) {
1061 /* EOF handling */
1062 ptr = NULL;
1063 len = 0;
1064 goto handle_eof;
1065 }
1066
1067 if(pkt->dts != AV_NOPTS_VALUE)
1068 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1069
1070 len = pkt->size;
1071 ptr = pkt->data;
1072 while (len > 0) {
1073 handle_eof:
1074 ist->pts= ist->next_pts;
1075
1076 if(len && len != pkt->size && verbose>0)
1077 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1078
1079 /* decode the packet if needed */
1080 data_buf = NULL; /* fail safe */
1081 data_size = 0;
1082 subtitle_to_free = NULL;
1083 if (ist->decoding_needed) {
1084 switch(ist->st->codec->codec_type) {
1085 case CODEC_TYPE_AUDIO:{
1086 if(pkt)
1087 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE));
1088 data_size= samples_size;
1089 /* XXX: could avoid copy if PCM 16 bits with same
1090 endianness as CPU */
1091 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1092 ptr, len);
1093 if (ret < 0)
1094 goto fail_decode;
1095 ptr += ret;
1096 len -= ret;
1097 /* Some bug in mpeg audio decoder gives */
1098 /* data_size < 0, it seems they are overflows */
1099 if (data_size <= 0) {
1100 /* no audio frame */
1101 continue;
1102 }
1103 data_buf = (uint8_t *)samples;
1104 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1105 (ist->st->codec->sample_rate * ist->st->codec->channels);
1106 break;}
1107 case CODEC_TYPE_VIDEO:
1108 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1109 /* XXX: allocate picture correctly */
1110 avcodec_get_frame_defaults(&picture);
1111
1112 ret = avcodec_decode_video(ist->st->codec,
1113 &picture, &got_picture, ptr, len);
1114 ist->st->quality= picture.quality;
1115 if (ret < 0)
1116 goto fail_decode;
1117 if (!got_picture) {
1118 /* no picture yet */
1119 goto discard_packet;
1120 }
1121 if (ist->st->codec->time_base.num != 0) {
1122 ist->next_pts += ((int64_t)AV_TIME_BASE *
1123 ist->st->codec->time_base.num) /
1124 ist->st->codec->time_base.den;
1125 }
1126 len = 0;
1127 break;
1128 case CODEC_TYPE_SUBTITLE:
1129 ret = avcodec_decode_subtitle(ist->st->codec,
1130 &subtitle, &got_subtitle, ptr, len);
1131 if (ret < 0)
1132 goto fail_decode;
1133 if (!got_subtitle) {
1134 goto discard_packet;
1135 }
1136 subtitle_to_free = &subtitle;
1137 len = 0;
1138 break;
1139 default:
1140 goto fail_decode;
1141 }
1142 } else {
1143 switch(ist->st->codec->codec_type) {
1144 case CODEC_TYPE_AUDIO:
1145 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1146 ist->st->codec->sample_rate;
1147 break;
1148 case CODEC_TYPE_VIDEO:
1149 if (ist->st->codec->time_base.num != 0) {
1150 ist->next_pts += ((int64_t)AV_TIME_BASE *
1151 ist->st->codec->time_base.num) /
1152 ist->st->codec->time_base.den;
1153 }
1154 break;
1155 }
1156 data_buf = ptr;
1157 data_size = len;
1158 ret = len;
1159 len = 0;
1160 }
1161
1162 buffer_to_free = NULL;
1163 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1164 pre_process_video_frame(ist, (AVPicture *)&picture,
1165 &buffer_to_free);
1166 }
1167
1168 // preprocess audio (volume)
1169 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1170 if (audio_volume != 256) {
1171 short *volp;
1172 volp = samples;
1173 for(i=0;i<(data_size / sizeof(short));i++) {
1174 int v = ((*volp) * audio_volume + 128) >> 8;
1175 if (v < -32768) v = -32768;
1176 if (v > 32767) v = 32767;
1177 *volp++ = v;
1178 }
1179 }
1180 }
1181
1182 /* frame rate emulation */
1183 if (ist->st->codec->rate_emu) {
1184 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1185 int64_t now = av_gettime() - ist->start;
1186 if (pts > now)
1187 usleep(pts - now);
1188
1189 ist->frame++;
1190 }
1191
1192 #if 0
1193 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1194 is the one of the next displayed one */
1195 /* XXX: add mpeg4 too ? */
1196 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1197 if (ist->st->codec->pict_type != B_TYPE) {
1198 int64_t tmp;
1199 tmp = ist->last_ip_pts;
1200 ist->last_ip_pts = ist->frac_pts.val;
1201 ist->frac_pts.val = tmp;
1202 }
1203 }
1204 #endif
1205 /* if output time reached then transcode raw format,
1206 encode packets and output them */
1207 if (start_time == 0 || ist->pts >= start_time)
1208 for(i=0;i<nb_ostreams;i++) {
1209 int frame_size;
1210
1211 ost = ost_table[i];
1212 if (ost->source_index == ist_index) {
1213 os = output_files[ost->file_index];
1214
1215 #if 0
1216 printf("%d: got pts=%0.3f %0.3f\n", i,
1217 (double)pkt->pts / AV_TIME_BASE,
1218 ((double)ist->pts / AV_TIME_BASE) -
1219 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1220 #endif
1221 /* set the input output pts pairs */
1222 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1223
1224 if (ost->encoding_needed) {
1225 switch(ost->st->codec->codec_type) {
1226 case CODEC_TYPE_AUDIO:
1227 do_audio_out(os, ost, ist, data_buf, data_size);
1228 break;
1229 case CODEC_TYPE_VIDEO:
1230 do_video_out(os, ost, ist, &picture, &frame_size);
1231 video_size += frame_size;
1232 if (vstats_filename && frame_size)
1233 do_video_stats(os, ost, frame_size);
1234 break;
1235 case CODEC_TYPE_SUBTITLE:
1236 do_subtitle_out(os, ost, ist, &subtitle,
1237 pkt->pts);
1238 break;
1239 default:
1240 abort();
1241 }
1242 } else {
1243 AVFrame avframe; //FIXME/XXX remove this
1244 AVPacket opkt;
1245 av_init_packet(&opkt);
1246
1247 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1248 continue;
1249
1250 /* no reencoding needed : output the packet directly */
1251 /* force the input stream PTS */
1252
1253 avcodec_get_frame_defaults(&avframe);
1254 ost->st->codec->coded_frame= &avframe;
1255 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1256
1257 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1258 audio_size += data_size;
1259 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1260 video_size += data_size;
1261 ost->sync_opts++;
1262 }
1263
1264 opkt.stream_index= ost->index;
1265 if(pkt->pts != AV_NOPTS_VALUE)
1266 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1267 else
1268 opkt.pts= AV_NOPTS_VALUE;
1269
1270 if (pkt->dts == AV_NOPTS_VALUE)
1271 opkt.dts = av_rescale_q(ist->next_pts, AV_TIME_BASE_Q, ost->st->time_base);
1272 else
1273 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1274
1275 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1276 opkt.flags= pkt->flags;
1277
1278 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1279 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1280 opkt.destruct= av_destruct_packet;
1281
1282 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1283 ost->st->codec->frame_number++;
1284 ost->frame_number++;
1285 av_free_packet(&opkt);
1286 }
1287 }
1288 }
1289 av_free(buffer_to_free);
1290 /* XXX: allocate the subtitles in the codec ? */
1291 if (subtitle_to_free) {
1292 if (subtitle_to_free->rects != NULL) {
1293 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1294 av_free(subtitle_to_free->rects[i].bitmap);
1295 av_free(subtitle_to_free->rects[i].rgba_palette);
1296 }
1297 av_freep(&subtitle_to_free->rects);
1298 }
1299 subtitle_to_free->num_rects = 0;
1300 subtitle_to_free = NULL;
1301 }
1302 }
1303 discard_packet:
1304 if (pkt == NULL) {
1305 /* EOF handling */
1306
1307 for(i=0;i<nb_ostreams;i++) {
1308 ost = ost_table[i];
1309 if (ost->source_index == ist_index) {
1310 AVCodecContext *enc= ost->st->codec;
1311 os = output_files[ost->file_index];
1312
1313 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1314 continue;
1315 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1316 continue;
1317
1318 if (ost->encoding_needed) {
1319 for(;;) {
1320 AVPacket pkt;
1321 int fifo_bytes;
1322 av_init_packet(&pkt);
1323 pkt.stream_index= ost->index;
1324
1325 switch(ost->st->codec->codec_type) {
1326 case CODEC_TYPE_AUDIO:
1327 fifo_bytes = av_fifo_size(&ost->fifo);
1328 ret = 0;
1329 /* encode any samples remaining in fifo */
1330 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1331 int fs_tmp = enc->frame_size;
1332 enc->frame_size = fifo_bytes / (2 * enc->channels);
1333 if(av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes) == 0) {
1334 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1335 }
1336 enc->frame_size = fs_tmp;
1337 }
1338 if(ret <= 0) {
1339 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1340 }
1341 audio_size += ret;
1342 pkt.flags |= PKT_FLAG_KEY;
1343 break;
1344 case CODEC_TYPE_VIDEO:
1345 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1346 video_size += ret;
1347 if(enc->coded_frame && enc->coded_frame->key_frame)
1348 pkt.flags |= PKT_FLAG_KEY;
1349 if (ost->logfile && enc->stats_out) {
1350 fprintf(ost->logfile, "%s", enc->stats_out);
1351 }
1352 break;
1353 default:
1354 ret=-1;
1355 }
1356
1357 if(ret<=0)
1358 break;
1359 pkt.data= bit_buffer;
1360 pkt.size= ret;
1361 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1362 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1363 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1364 }
1365 }
1366 }
1367 }
1368 }
1369
1370 return 0;
1371 fail_decode:
1372 return -1;
1373 }
1374
1375 static void print_sdp(AVFormatContext **avc, int n)
1376 {
1377 char sdp[2048];
1378
1379 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1380 printf("SDP:\n%s\n", sdp);
1381 }
1382
1383 static int stream_index_from_inputs(AVFormatContext **input_files,
1384 int nb_input_files,
1385 AVInputFile *file_table,
1386 AVInputStream **ist_table,
1387 enum CodecType type,
1388 int programid)
1389 {
1390 int p, q, z;
1391 for(z=0; z<nb_input_files; z++) {
1392 AVFormatContext *ic = input_files[z];
1393 for(p=0; p<ic->nb_programs; p++) {
1394 AVProgram *program = ic->programs[p];
1395 if(program->id != programid)
1396 continue;
1397 for(q=0; q<program->nb_stream_indexes; q++) {
1398 int sidx = program->stream_index[q];
1399 int ris = file_table[z].ist_index + sidx;
1400 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1401 return ris;
1402 }
1403 }
1404 }
1405
1406 return -1;
1407 }
1408
1409 /*
1410 * The following code is the main loop of the file converter
1411 */
1412 static int av_encode(AVFormatContext **output_files,
1413 int nb_output_files,
1414 AVFormatContext **input_files,
1415 int nb_input_files,
1416 AVStreamMap *stream_maps, int nb_stream_maps)
1417 {
1418 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1419 AVFormatContext *is, *os;
1420 AVCodecContext *codec, *icodec;
1421 AVOutputStream *ost, **ost_table = NULL;
1422 AVInputStream *ist, **ist_table = NULL;
1423 AVInputFile *file_table;
1424 int key;
1425 int want_sdp = 1;
1426
1427 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1428 if (!file_table)
1429 goto fail;
1430
1431 /* input stream init */
1432 j = 0;
1433 for(i=0;i<nb_input_files;i++) {
1434 is = input_files[i];
1435 file_table[i].ist_index = j;
1436 file_table[i].nb_streams = is->nb_streams;
1437 j += is->nb_streams;
1438 }
1439 nb_istreams = j;
1440
1441 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1442 if (!ist_table)
1443 goto fail;
1444
1445 for(i=0;i<nb_istreams;i++) {
1446 ist = av_mallocz(sizeof(AVInputStream));
1447 if (!ist)
1448 goto fail;
1449 ist_table[i] = ist;
1450 }
1451 j = 0;
1452 for(i=0;i<nb_input_files;i++) {
1453 is = input_files[i];
1454 for(k=0;k<is->nb_streams;k++) {
1455 ist = ist_table[j++];
1456 ist->st = is->streams[k];
1457 ist->file_index = i;
1458 ist->index = k;
1459 ist->discard = 1; /* the stream is discarded by default
1460 (changed later) */
1461
1462 if (ist->st->codec->rate_emu) {
1463 ist->start = av_gettime();
1464 ist->frame = 0;
1465 }
1466 }
1467 }
1468
1469 /* output stream init */
1470 nb_ostreams = 0;
1471 for(i=0;i<nb_output_files;i++) {
1472 os = output_files[i];
1473 if (!os->nb_streams) {
1474 fprintf(stderr, "Output file does not contain any stream\n");
1475 exit(1);
1476 }
1477 nb_ostreams += os->nb_streams;
1478 }
1479 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1480 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1481 exit(1);
1482 }
1483
1484 /* Sanity check the mapping args -- do the input files & streams exist? */
1485 for(i=0;i<nb_stream_maps;i++) {
1486 int fi = stream_maps[i].file_index;
1487 int si = stream_maps[i].stream_index;
1488
1489 if (fi < 0 || fi > nb_input_files - 1 ||
1490 si < 0 || si > file_table[fi].nb_streams - 1) {
1491 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1492 exit(1);
1493 }
1494 fi = stream_maps[i].sync_file_index;
1495 si = stream_maps[i].sync_stream_index;
1496 if (fi < 0 || fi > nb_input_files - 1 ||
1497 si < 0 || si > file_table[fi].nb_streams - 1) {
1498 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1499 exit(1);
1500 }
1501 }
1502
1503 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1504 if (!ost_table)
1505 goto fail;
1506 for(i=0;i<nb_ostreams;i++) {
1507 ost = av_mallocz(sizeof(AVOutputStream));
1508 if (!ost)
1509 goto fail;
1510 ost_table[i] = ost;
1511 }
1512
1513 n = 0;
1514 for(k=0;k<nb_output_files;k++) {
1515 os = output_files[k];
1516 for(i=0;i<os->nb_streams;i++) {
1517 int found;
1518 ost = ost_table[n++];
1519 ost->file_index = k;
1520 ost->index = i;
1521 ost->st = os->streams[i];
1522 if (nb_stream_maps > 0) {
1523 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1524 stream_maps[n-1].stream_index;
1525
1526 /* Sanity check that the stream types match */
1527 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1528 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1529 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1530 ost->file_index, ost->index);
1531 exit(1);
1532 }
1533
1534 } else {
1535 if(opt_programid) {
1536 found = 0;
1537 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1538 if(j != -1) {
1539 ost->source_index = j;
1540 found = 1;
1541 }
1542 } else {
1543 /* get corresponding input stream index : we select the first one with the right type */
1544 found = 0;
1545 for(j=0;j<nb_istreams;j++) {
1546 ist = ist_table[j];
1547 if (ist->discard &&
1548 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1549 ost->source_index = j;
1550 found = 1;
1551 break;
1552 }
1553 }
1554 }
1555
1556 if (!found) {
1557 if(! opt_programid) {
1558 /* try again and reuse existing stream */
1559 for(j=0;j<nb_istreams;j++) {
1560 ist = ist_table[j];
1561 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1562 ost->source_index = j;
1563 found = 1;
1564 }
1565 }
1566 }
1567 if (!found) {
1568 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1569 ost->file_index, ost->index);
1570 exit(1);
1571 }
1572 }
1573 }
1574 ist = ist_table[ost->source_index];
1575 ist->discard = 0;
1576 ost->sync_ist = (nb_stream_maps > 0) ?
1577 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1578 stream_maps[n-1].sync_stream_index] : ist;
1579 }
1580 }
1581
1582 /* for each output stream, we compute the right encoding parameters */
1583 for(i=0;i<nb_ostreams;i++) {
1584 ost = ost_table[i];
1585 os = output_files[ost->file_index];
1586 ist = ist_table[ost->source_index];
1587
1588 codec = ost->st->codec;
1589 icodec = ist->st->codec;
1590
1591 if (!ost->st->language[0])
1592 av_strlcpy(ost->st->language, ist->st->language,
1593 sizeof(ost->st->language));
1594
1595 ost->st->disposition = ist->st->disposition;
1596
1597 if (ost->st->stream_copy) {
1598 /* if stream_copy is selected, no need to decode or encode */
1599 codec->codec_id = icodec->codec_id;
1600 codec->codec_type = icodec->codec_type;
1601
1602 if(!codec->codec_tag){
1603 if( !os->oformat->codec_tag
1604 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1605 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1606 codec->codec_tag = icodec->codec_tag;
1607 }
1608
1609 codec->bit_rate = icodec->bit_rate;
1610 codec->extradata= icodec->extradata;
1611 codec->extradata_size= icodec->extradata_size;
1612 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1613 codec->time_base = icodec->time_base;
1614 else
1615 codec->time_base = ist->st->time_base;
1616 switch(codec->codec_type) {
1617 case CODEC_TYPE_AUDIO:
1618 codec->sample_rate = icodec->sample_rate;
1619 codec->channels = icodec->channels;
1620 codec->frame_size = icodec->frame_size;
1621 codec->block_align= icodec->block_align;
1622 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1623 codec->block_align= 0;
1624 break;
1625 case CODEC_TYPE_VIDEO:
1626 if(using_vhook) {
1627 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1628 exit(1);
1629 }
1630 codec->pix_fmt = icodec->pix_fmt;
1631 codec->width = icodec->width;
1632 codec->height = icodec->height;
1633 codec->has_b_frames = icodec->has_b_frames;
1634 break;
1635 case CODEC_TYPE_SUBTITLE:
1636 break;
1637 default:
1638 abort();
1639 }
1640 } else {
1641 switch(codec->codec_type) {
1642 case CODEC_TYPE_AUDIO:
1643 if (av_fifo_init(&ost->fifo, 1024))
1644 goto fail;
1645 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1646 icodec->request_channels = codec->channels;
1647 ist->decoding_needed = 1;
1648 ost->encoding_needed = 1;
1649 break;
1650 case CODEC_TYPE_VIDEO:
1651 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1652 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1653 ost->video_resample = ((codec->width != icodec->width -
1654 (frame_leftBand + frame_rightBand) +
1655 (frame_padleft + frame_padright)) ||
1656 (codec->height != icodec->height -
1657 (frame_topBand + frame_bottomBand) +
1658 (frame_padtop + frame_padbottom)) ||
1659 (codec->pix_fmt != icodec->pix_fmt));
1660 if (ost->video_crop) {
1661 ost->topBand = frame_topBand;
1662 ost->leftBand = frame_leftBand;
1663 }
1664 if (ost->video_pad) {
1665 ost->padtop = frame_padtop;
1666 ost->padleft = frame_padleft;
1667 ost->padbottom = frame_padbottom;
1668 ost->padright = frame_padright;
1669 if (!ost->video_resample) {
1670 avcodec_get_frame_defaults(&ost->pict_tmp);
1671 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1672 codec->width, codec->height ) )
1673 goto fail;
1674 }
1675 }
1676 if (ost->video_resample) {
1677 avcodec_get_frame_defaults(&ost->pict_tmp);
1678 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1679 codec->width, codec->height ) ) {
1680 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1681 exit(1);
1682 }
1683 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1684 ost->img_resample_ctx = sws_getContext(
1685 icodec->width - (frame_leftBand + frame_rightBand),
1686 icodec->height - (frame_topBand + frame_bottomBand),
1687 icodec->pix_fmt,
1688 codec->width - (frame_padleft + frame_padright),
1689 codec->height - (frame_padtop + frame_padbottom),
1690 codec->pix_fmt,
1691 sws_flags, NULL, NULL, NULL);
1692 if (ost->img_resample_ctx == NULL) {
1693 fprintf(stderr, "Cannot get resampling context\n");
1694 exit(1);
1695 }
1696 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1697 }
1698 ost->encoding_needed = 1;
1699 ist->decoding_needed = 1;
1700 break;
1701 case CODEC_TYPE_SUBTITLE:
1702 ost->encoding_needed = 1;
1703 ist->decoding_needed = 1;
1704 break;
1705 default:
1706 abort();
1707 break;
1708 }
1709 /* two pass mode */
1710 if (ost->encoding_needed &&
1711 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1712 char logfilename[1024];
1713 FILE *f;
1714 int size;
1715 char *logbuffer;
1716
1717 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1718 pass_logfilename ?
1719 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1720 if (codec->flags & CODEC_FLAG_PASS1) {
1721 f = fopen(logfilename, "w");
1722 if (!f) {
1723 perror(logfilename);
1724 exit(1);
1725 }
1726 ost->logfile = f;
1727 } else {
1728 /* read the log file */
1729 f = fopen(logfilename, "r");
1730 if (!f) {
1731 perror(logfilename);
1732 exit(1);
1733 }
1734 fseek(f, 0, SEEK_END);
1735 size = ftell(f);
1736 fseek(f, 0, SEEK_SET);
1737 logbuffer = av_malloc(size + 1);
1738 if (!logbuffer) {
1739 fprintf(stderr, "Could not allocate log buffer\n");
1740 exit(1);
1741 }
1742 size = fread(logbuffer, 1, size, f);
1743 fclose(f);
1744 logbuffer[size] = '\0';
1745 codec->stats_in = logbuffer;
1746 }
1747 }
1748 }
1749 if(codec->codec_type == CODEC_TYPE_VIDEO){
1750 int size= codec->width * codec->height;
1751 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1752 }
1753 }
1754
1755 if (!bit_buffer)
1756 bit_buffer = av_malloc(bit_buffer_size);
1757 if (!bit_buffer)
1758 goto fail;
1759
1760 /* dump the file output parameters - cannot be done before in case
1761 of stream copy */
1762 for(i=0;i<nb_output_files;i++) {
1763 dump_format(output_files[i], i, output_files[i]->filename, 1);
1764 }
1765
1766 /* dump the stream mapping */
1767 if (verbose >= 0) {
1768 fprintf(stderr, "Stream mapping:\n");
1769 for(i=0;i<nb_ostreams;i++) {
1770 ost = ost_table[i];
1771 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1772 ist_table[ost->source_index]->file_index,
1773 ist_table[ost->source_index]->index,
1774 ost->file_index,
1775 ost->index);
1776 if (ost->sync_ist != ist_table[ost->source_index])
1777 fprintf(stderr, " [sync #%d.%d]",
1778 ost->sync_ist->file_index,
1779 ost->sync_ist->index);
1780 fprintf(stderr, "\n");
1781 }
1782 }
1783
1784 /* open each encoder */
1785 for(i=0;i<nb_ostreams;i++) {
1786 ost = ost_table[i];
1787 if (ost->encoding_needed) {
1788 AVCodec *codec;
1789 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1790 if (!codec) {
1791 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1792 ost->file_index, ost->index);
1793 exit(1);
1794 }
1795 if (avcodec_open(ost->st->codec, codec) < 0) {
1796 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1797 ost->file_index, ost->index);
1798 exit(1);
1799 }
1800 extra_size += ost->st->codec->extradata_size;
1801 }
1802 }
1803
1804 /* open each decoder */
1805 for(i=0;i<nb_istreams;i++) {
1806 ist = ist_table[i];
1807 if (ist->decoding_needed) {
1808 AVCodec *codec;
1809 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1810 if (!codec) {
1811 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1812 ist->st->codec->codec_id, ist->file_index, ist->index);
1813 exit(1);
1814 }
1815 if (avcodec_open(ist->st->codec, codec) < 0) {
1816 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1817 ist->file_index, ist->index);
1818 exit(1);
1819 }
1820 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1821 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1822 }
1823 }
1824
1825 /* init pts */
1826 for(i=0;i<nb_istreams;i++) {
1827 ist = ist_table[i];
1828 is = input_files[ist->file_index];
1829 ist->pts = 0;
1830 ist->next_pts = AV_NOPTS_VALUE;
1831 ist->is_start = 1;
1832 }
1833
1834 /* set meta data information from input file if required */
1835 for (i=0;i<nb_meta_data_maps;i++) {
1836 AVFormatContext *out_file;
1837 AVFormatContext *in_file;
1838
1839 int out_file_index = meta_data_maps[i].out_file;
1840 int in_file_index = meta_data_maps[i].in_file;
1841 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1842 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1843 ret = AVERROR(EINVAL);
1844 goto fail;
1845 }
1846 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1847 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1848 ret = AVERROR(EINVAL);
1849 goto fail;
1850 }
1851
1852 out_file = output_files[out_file_index];
1853 in_file = input_files[in_file_index];
1854
1855 strcpy(out_file->title, in_file->title);
1856 strcpy(out_file->author, in_file->author);
1857 strcpy(out_file->copyright, in_file->copyright);
1858 strcpy(out_file->comment, in_file->comment);
1859 strcpy(out_file->album, in_file->album);
1860 out_file->year = in_file->year;
1861 out_file->track = in_file->track;
1862 strcpy(out_file->genre, in_file->genre);
1863 }
1864
1865 /* open files and write file headers */
1866 for(i=0;i<nb_output_files;i++) {
1867 os = output_files[i];
1868 if (av_write_header(os) < 0) {
1869 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1870 ret = AVERROR(EINVAL);
1871 goto fail;
1872 }
1873 if (strcmp(output_files[i]->oformat->name, "rtp")) {
1874 want_sdp = 0;
1875 }
1876 }
1877 if (want_sdp) {
1878 print_sdp(output_files, nb_output_files);
1879 }
1880
1881 if ( !using_stdin && verbose >= 0) {
1882 fprintf(stderr, "Press [q] to stop encoding\n");
1883 url_set_interrupt_cb(decode_interrupt_cb);
1884 }
1885 term_init();
1886
1887 key = -1;
1888 timer_start = av_gettime();
1889
1890 for(; received_sigterm == 0;) {
1891 int file_index, ist_index;
1892 AVPacket pkt;
1893 double ipts_min;
1894 double opts_min;
1895
1896 redo:
1897 ipts_min= 1e100;
1898 opts_min= 1e100;
1899 /* if 'q' pressed, exits */
1900 if (!using_stdin) {
1901 if (q_pressed)
1902 break;
1903 /* read_key() returns 0 on EOF */
1904 key = read_key();
1905 if (key == 'q')
1906 break;
1907 }
1908
1909 /* select the stream that we must read now by looking at the
1910 smallest output pts */
1911 file_index = -1;
1912 for(i=0;i<nb_ostreams;i++) {
1913 double ipts, opts;
1914 ost = ost_table[i];
1915 os = output_files[ost->file_index];
1916 ist = ist_table[ost->source_index];
1917 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1918 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
1919 else
1920 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
1921 ipts = (double)ist->pts;
1922 if (!file_table[ist->file_index].eof_reached){
1923 if(ipts < ipts_min) {
1924 ipts_min = ipts;
1925 if(input_sync ) file_index = ist->file_index;
1926 }
1927 if(opts < opts_min) {
1928 opts_min = opts;
1929 if(!input_sync) file_index = ist->file_index;
1930 }
1931 }
1932 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
1933 file_index= -1;
1934 break;
1935 }
1936 }
1937 /* if none, if is finished */
1938 if (file_index < 0) {
1939 break;
1940 }
1941
1942 /* finish if recording time exhausted */
1943 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
1944 break;
1945
1946 /* finish if limit size exhausted */
1947 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
1948 break;
1949
1950 /* read a frame from it and output it in the fifo */
1951 is = input_files[file_index];
1952 if (av_read_frame(is, &pkt) < 0) {
1953 file_table[file_index].eof_reached = 1;
1954 if (opt_shortest)
1955 break;
1956 else
1957 continue;
1958 }
1959
1960 if (do_pkt_dump) {
1961 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
1962 }
1963 /* the following test is needed in case new streams appear
1964 dynamically in stream : we ignore them */
1965 if (pkt.stream_index >= file_table[file_index].nb_streams)
1966 goto discard_packet;
1967 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1968 ist = ist_table[ist_index];
1969 if (ist->discard)
1970 goto discard_packet;
1971
1972 if (pkt.dts != AV_NOPTS_VALUE)
1973 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
1974 if (pkt.pts != AV_NOPTS_VALUE)
1975 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
1976
1977 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
1978 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
1979 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
1980 int64_t delta= pkt_dts - ist->next_pts;
1981 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
1982 input_files_ts_offset[ist->file_index]-= delta;
1983 if (verbose > 2)
1984 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
1985 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
1986 if(pkt.pts != AV_NOPTS_VALUE)
1987 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
1988 }
1989 }
1990
1991 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1992 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1993
1994 if (verbose >= 0)
1995 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1996 ist->file_index, ist->index);
1997
1998 av_free_packet(&pkt);
1999 goto redo;
2000 }
2001
2002 discard_packet:
2003 av_free_packet(&pkt);
2004
2005 /* dump report by using the output first video and audio streams */
2006 print_report(output_files, ost_table, nb_ostreams, 0);
2007 }
2008
2009 /* at the end of stream, we must flush the decoder buffers */
2010 for(i=0;i<nb_istreams;i++) {
2011 ist = ist_table[i];
2012 if (ist->decoding_needed) {
2013 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2014 }
2015 }
2016
2017 term_exit();
2018
2019 /* write the trailer if needed and close file */
2020 for(i=0;i<nb_output_files;i++) {
2021 os = output_files[i];
2022 av_write_trailer(os);
2023 }
2024
2025 /* dump report by using the first video and audio streams */
2026 print_report(output_files, ost_table, nb_ostreams, 1);
2027
2028 /* close each encoder */
2029 for(i=0;i<nb_ostreams;i++) {
2030 ost = ost_table[i];
2031 if (ost->encoding_needed) {
2032 av_freep(&ost->st->codec->stats_in);
2033 avcodec_close(ost->st->codec);
2034 }
2035 }
2036
2037 /* close each decoder */
2038 for(i=0;i<nb_istreams;i++) {
2039 ist = ist_table[i];
2040 if (ist->decoding_needed) {
2041 avcodec_close(ist->st->codec);
2042 }
2043 }
2044
2045 /* finished ! */
2046
2047 ret = 0;
2048 fail1:
2049 av_freep(&bit_buffer);
2050 av_free(file_table);
2051
2052 if (ist_table) {
2053 for(i=0;i<nb_istreams;i++) {
2054 ist = ist_table[i];
2055 av_free(ist);
2056 }
2057 av_free(ist_table);
2058 }
2059 if (ost_table) {
2060 for(i=0;i<nb_ostreams;i++) {
2061 ost = ost_table[i];
2062 if (ost) {
2063 if (ost->logfile) {
2064 fclose(ost->logfile);
2065 ost->logfile = NULL;
2066 }
2067 av_fifo_free(&ost->fifo); /* works even if fifo is not
2068 initialized but set to zero */
2069 av_free(ost->pict_tmp.data[0]);
2070 if (ost->video_resample)
2071 sws_freeContext(ost->img_resample_ctx);
2072 if (ost->resample)
2073 audio_resample_close(ost->resample);
2074 av_free(ost);
2075 }
2076 }
2077 av_free(ost_table);
2078 }
2079 return ret;
2080 fail:
2081 ret = AVERROR(ENOMEM);
2082 goto fail1;
2083 }
2084
2085 #if 0
2086 int file_read(const char *filename)
2087 {
2088 URLContext *h;
2089 unsigned char buffer[1024];
2090 int len, i;
2091
2092 if (url_open(&h, filename, O_RDONLY) < 0) {
2093 printf("could not open '%s'\n", filename);
2094 return -1;
2095 }
2096 for(;;) {
2097 len = url_read(h, buffer, sizeof(buffer));
2098 if (len <= 0)
2099 break;
2100 for(i=0;i<len;i++) putchar(buffer[i]);
2101 }
2102 url_close(h);
2103 return 0;
2104 }
2105 #endif
2106
2107 static void opt_format(const char *arg)
2108 {
2109 /* compatibility stuff for pgmyuv */
2110 if (!strcmp(arg, "pgmyuv")) {
2111 pgmyuv_compatibility_hack=1;
2112 // opt_image_format(arg);
2113 arg = "image2";
2114 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2115 }
2116
2117 file_iformat = av_find_input_format(arg);
2118 file_oformat = guess_format(arg, NULL, NULL);
2119 if (!file_iformat && !file_oformat) {
2120 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2121 exit(1);
2122 }
2123 }
2124
2125 extern int ffm_nopts;
2126
2127 static int opt_default(const char *opt, const char *arg){
2128 int type;
2129 const AVOption *o= NULL;
2130 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
2131
2132 for(type=0; type<CODEC_TYPE_NB; type++){
2133 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
2134 if(o2)
2135 o = av_set_string(avctx_opts[type], opt, arg);
2136 }
2137 if(!o)
2138 o = av_set_string(avformat_opts, opt, arg);
2139 if(!o)
2140 o = av_set_string(sws_opts, opt, arg);
2141 if(!o){
2142 if(opt[0] == 'a')
2143 o = av_set_string(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg);
2144 else if(opt[0] == 'v')
2145 o = av_set_string(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg);
2146 else if(opt[0] == 's')
2147 o = av_set_string(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg);
2148 }
2149 if(!o)
2150 return -1;
2151
2152 // av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
2153
2154 //FIXME we should always use avctx_opts, ... for storing options so there wont be any need to keep track of whats set over this
2155 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
2156 opt_names[opt_name_count++]= o->name;
2157
2158 #if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
2159 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2160 if(avctx_opts[0]->flags & CODEC_FLAG_BITEXACT)
2161 ffm_nopts = 1;
2162 #endif
2163
2164 if(avctx_opts[0]->debug)
2165 av_log_set_level(AV_LOG_DEBUG);
2166 return 0;
2167 }
2168
2169 static void opt_video_rc_override_string(const char *arg)
2170 {
2171 video_rc_override_string = arg;
2172 }
2173
2174 static void opt_me_threshold(const char *arg)
2175 {
2176 me_threshold = atoi(arg);
2177 }
2178
2179 static void opt_verbose(const char *arg)
2180 {
2181 verbose = atoi(arg);
2182 av_log_set_level(verbose);
2183 }
2184
2185 static void opt_frame_rate(const char *arg)
2186 {
2187 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2188 fprintf(stderr, "Incorrect frame rate\n");
2189 exit(1);
2190 }
2191 }
2192
2193 static int opt_bitrate(const char *opt, const char *arg)
2194 {
2195 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2196
2197 opt_default(opt, arg);
2198
2199 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2200 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2201
2202 return 0;
2203 }
2204
2205 static void opt_frame_crop_top(const char *arg)
2206 {
2207 frame_topBand = atoi(arg);
2208 if (frame_topBand < 0) {
2209 fprintf(stderr, "Incorrect top crop size\n");
2210 exit(1);
2211 }
2212 if ((frame_topBand % 2) != 0) {
2213 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2214 exit(1);
2215 }
2216 if ((frame_topBand) >= frame_height){
2217 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2218 exit(1);
2219 }
2220 frame_height -= frame_topBand;
2221 }
2222
2223 static void opt_frame_crop_bottom(const char *arg)
2224 {
2225 frame_bottomBand = atoi(arg);
2226 if (frame_bottomBand < 0) {
2227 fprintf(stderr, "Incorrect bottom crop size\n");
2228 exit(1);
2229 }
2230 if ((frame_bottomBand % 2) != 0) {
2231 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2232 exit(1);
2233 }
2234 if ((frame_bottomBand) >= frame_height){
2235 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2236 exit(1);
2237 }
2238 frame_height -= frame_bottomBand;
2239 }
2240
2241 static void opt_frame_crop_left(const char *arg)
2242 {
2243 frame_leftBand = atoi(arg);
2244 if (frame_leftBand < 0) {
2245 fprintf(stderr, "Incorrect left crop size\n");
2246 exit(1);
2247 }
2248 if ((frame_leftBand % 2) != 0) {
2249 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2250 exit(1);
2251 }
2252 if ((frame_leftBand) >= frame_width){
2253 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2254 exit(1);
2255 }
2256 frame_width -= frame_leftBand;
2257 }
2258
2259 static void opt_frame_crop_right(const char *arg)
2260 {
2261 frame_rightBand = atoi(arg);
2262 if (frame_rightBand < 0) {
2263 fprintf(stderr, "Incorrect right crop size\n");
2264 exit(1);
2265 }
2266 if ((frame_rightBand % 2) != 0) {
2267 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2268 exit(1);
2269 }
2270 if ((frame_rightBand) >= frame_width){
2271 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2272 exit(1);
2273 }
2274 frame_width -= frame_rightBand;
2275 }
2276
2277 static void opt_frame_size(const char *arg)
2278 {
2279 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2280 fprintf(stderr, "Incorrect frame size\n");
2281 exit(1);
2282 }
2283 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2284 fprintf(stderr, "Frame size must be a multiple of 2\n");
2285 exit(1);
2286 }
2287 }
2288
2289
2290 #define SCALEBITS 10
2291 #define ONE_HALF (1 << (SCALEBITS - 1))
2292 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2293
2294 #define RGB_TO_Y(r, g, b) \
2295 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2296 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2297
2298 #define RGB_TO_U(r1, g1, b1, shift)\
2299 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2300 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2301
2302 #define RGB_TO_V(r1, g1, b1, shift)\
2303 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2304 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2305
2306 static void opt_pad_color(const char *arg) {
2307 /* Input is expected to be six hex digits similar to
2308 how colors are expressed in html tags (but without the #) */
2309 int rgb = strtol(arg, NULL, 16);
2310 int r,g,b;
2311
2312 r = (rgb >> 16);
2313 g = ((rgb >> 8) & 255);
2314 b = (rgb & 255);
2315
2316 padcolor[0] = RGB_TO_Y(r,g,b);
2317 padcolor[1] = RGB_TO_U(r,g,b,0);
2318 padcolor[2] = RGB_TO_V(r,g,b,0);
2319 }
2320
2321 static void opt_frame_pad_top(const char *arg)
2322 {
2323 frame_padtop = atoi(arg);
2324 if (frame_padtop < 0) {
2325 fprintf(stderr, "Incorrect top pad size\n");
2326 exit(1);
2327 }
2328 if ((frame_padtop % 2) != 0) {
2329 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2330 exit(1);
2331 }
2332 }
2333
2334 static void opt_frame_pad_bottom(const char *arg)
2335 {
2336 frame_padbottom = atoi(arg);
2337 if (frame_padbottom < 0) {
2338 fprintf(stderr, "Incorrect bottom pad size\n");
2339 exit(1);
2340 }
2341 if ((frame_padbottom % 2) != 0) {
2342 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2343 exit(1);
2344 }
2345 }
2346
2347
2348 static void opt_frame_pad_left(const char *arg)
2349 {
2350 frame_padleft = atoi(arg);
2351 if (frame_padleft < 0) {
2352 fprintf(stderr, "Incorrect left pad size\n");
2353 exit(1);
2354 }
2355 if ((frame_padleft % 2) != 0) {
2356 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2357 exit(1);
2358 }
2359 }
2360
2361
2362 static void opt_frame_pad_right(const char *arg)
2363 {
2364 frame_padright = atoi(arg);
2365 if (frame_padright < 0) {
2366 fprintf(stderr, "Incorrect right pad size\n");
2367 exit(1);
2368 }
2369 if ((frame_padright % 2) != 0) {
2370 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2371 exit(1);
2372 }
2373 }
2374
2375 void list_pix_fmts(void)
2376 {
2377 int i;
2378 char pix_fmt_str[128];
2379 for (i=-1; i < PIX_FMT_NB; i++) {
2380 avcodec_pix_fmt_string (pix_fmt_str, sizeof(pix_fmt_str), i);
2381 fprintf(stdout, "%s\n", pix_fmt_str);
2382 }
2383 }
2384
2385 static void opt_frame_pix_fmt(const char *arg)
2386 {
2387 if (strcmp(arg, "list"))
2388 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2389 else {
2390 list_pix_fmts();
2391 exit(0);
2392 }
2393 }
2394
2395 static void opt_frame_aspect_ratio(const char *arg)
2396 {
2397 int x = 0, y = 0;
2398 double ar = 0;
2399 const char *p;
2400 char *end;
2401
2402 p = strchr(arg, ':');
2403 if (p) {
2404 x = strtol(arg, &end, 10);
2405 if (end == p)
2406 y = strtol(end+1, &end, 10);
2407 if (x > 0 && y > 0)
2408 ar = (double)x / (double)y;
2409 } else
2410 ar = strtod(arg, NULL);
2411
2412 if (!ar) {
2413 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2414 exit(1);
2415 }
2416 frame_aspect_ratio = ar;
2417 }
2418
2419 static void opt_qscale(const char *arg)
2420 {
2421 video_qscale = atof(arg);
2422 if (video_qscale <= 0 ||
2423 video_qscale > 255) {
2424 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2425 exit(1);
2426 }
2427 }
2428
2429 static void opt_qdiff(const char *arg)
2430 {
2431 video_qdiff = atoi(arg);
2432 if (video_qdiff < 0 ||
2433 video_qdiff > 31) {
2434 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2435 exit(1);
2436 }
2437 }
2438
2439 static void opt_strict(const char *arg)
2440 {
2441 strict= atoi(arg);
2442 }
2443
2444 static void opt_top_field_first(const char *arg)
2445 {
2446 top_field_first= atoi(arg);
2447 }
2448
2449 static void opt_thread_count(const char *arg)
2450 {
2451 thread_count= atoi(arg);
2452 #if !defined(HAVE_THREADS)
2453 if (verbose >= 0)
2454 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2455 #endif
2456 }
2457
2458 static void opt_audio_rate(const char *arg)
2459 {
2460 audio_sample_rate = atoi(arg);
2461 }
2462
2463 static void opt_audio_channels(const char *arg)
2464 {
2465 audio_channels = atoi(arg);
2466 }
2467
2468 static void opt_video_channel(const char *arg)
2469 {
2470 video_channel = strtol(arg, NULL, 0);
2471 }
2472
2473 static void opt_video_standard(const char *arg)
2474 {
2475 video_standard = av_strdup(arg);
2476 }
2477
2478 static void opt_codec(int *pstream_copy, char **pcodec_name,
2479 int codec_type, const char *arg)
2480 {
2481 av_freep(pcodec_name);
2482 if (!strcmp(arg, "copy")) {
2483 *pstream_copy = 1;
2484 } else {
2485 *pcodec_name = av_strdup(arg);
2486 }
2487 }
2488
2489 static void opt_audio_codec(const char *arg)
2490 {
2491 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2492 }
2493
2494 static void opt_audio_tag(const char *arg)
2495 {
2496 char *tail;
2497 audio_codec_tag= strtol(arg, &tail, 0);
2498
2499 if(!tail || *tail)
2500 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2501 }
2502
2503 static void opt_video_tag(const char *arg)
2504 {
2505 char *tail;
2506 video_codec_tag= strtol(arg, &tail, 0);
2507
2508 if(!tail || *tail)
2509 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2510 }
2511
2512 #ifdef CONFIG_VHOOK
2513 static void add_frame_hooker(const char *arg)
2514 {
2515 int argc = 0;
2516 char *argv[64];
2517 int i;
2518 char *args = av_strdup(arg);
2519
2520 using_vhook = 1;
2521
2522 argv[0] = strtok(args, " ");
2523 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2524 }
2525
2526 i = frame_hook_add(argc, argv);
2527
2528 if (i != 0) {
2529 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2530 exit(1);
2531 }
2532 }
2533 #endif
2534
2535 static void opt_video_codec(const char *arg)
2536 {
2537 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2538 }
2539
2540 static void opt_subtitle_codec(const char *arg)
2541 {
2542 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2543 }
2544
2545 static void opt_map(const char *arg)
2546 {
2547 AVStreamMap *m;
2548 char *p;
2549
2550 m = &stream_maps[nb_stream_maps++];
2551
2552 m->file_index = strtol(arg, &p, 0);
2553 if (*p)
2554 p++;
2555
2556 m->stream_index = strtol(p, &p, 0);
2557 if (*p) {
2558 p++;
2559 m->sync_file_index = strtol(p, &p, 0);
2560 if (*p)
2561 p++;
2562 m->sync_stream_index = strtol(p, &p, 0);
2563 } else {
2564 m->sync_file_index = m->file_index;
2565 m->sync_stream_index = m->stream_index;
2566 }
2567 }
2568
2569 static void opt_map_meta_data(const char *arg)
2570 {
2571 AVMetaDataMap *m;
2572 char *p;
2573
2574 m = &meta_data_maps[nb_meta_data_maps++];
2575
2576 m->out_file = strtol(arg, &p, 0);
2577 if (*p)
2578 p++;
2579
2580 m->in_file = strtol(p, &p, 0);
2581 }
2582
2583 static int64_t parse_time_or_die(const char *timestr, int is_duration)
2584 {
2585 int64_t us = parse_date(timestr, is_duration);
2586 if (us == INT64_MIN) {
2587 fprintf(stderr, "Invalid %s specification: %s\n",
2588 is_duration ? "duration" : "date", timestr);
2589 exit(1);
2590 }
2591 return us;
2592 }
2593
2594 static void opt_recording_time(const char *arg)
2595 {
2596 recording_time = parse_time_or_die(arg, 1);
2597 }
2598
2599 static void opt_start_time(const char *arg)
2600 {
2601 start_time = parse_time_or_die(arg, 1);
2602 }
2603
2604 static void opt_rec_timestamp(const char *arg)
2605 {
2606 rec_timestamp = parse_time_or_die(arg, 0) / 1000000;
2607 }
2608
2609 static void opt_input_ts_offset(const char *arg)
2610 {
2611 input_ts_offset = parse_time_or_die(arg, 1);
2612 }
2613
2614 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2615 {
2616 const char *codec_string = encoder ? "encoder" : "decoder";
2617 AVCodec *codec;
2618
2619 if(!name)
2620 return CODEC_ID_NONE;
2621 codec = encoder ?
2622 avcodec_find_encoder_by_name(name) :
2623 avcodec_find_decoder_by_name(name);
2624 if(!codec) {
2625 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2626 exit(1);
2627 }
2628 if(codec->type != type) {
2629 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2630 exit(1);
2631 }
2632 return codec->id;
2633 }
2634
2635 static void opt_input_file(const char *filename)
2636 {
2637 AVFormatContext *ic;
2638 AVFormatParameters params, *ap = &params;
2639 int err, i, ret, rfps, rfps_base;
2640 int64_t timestamp;
2641
2642 if (!strcmp(filename, "-"))
2643 filename = "pipe:";
2644
2645 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2646 !strcmp( filename, "/dev/stdin" );
2647
2648 /* get default parameters from command line */
2649 ic = av_alloc_format_context();
2650
2651 memset(ap, 0, sizeof(*ap));
2652 ap->prealloced_context = 1;
2653 ap->sample_rate = audio_sample_rate;
2654 ap->channels = audio_channels;
2655 ap->time_base.den = frame_rate.num;
2656 ap->time_base.num = frame_rate.den;
2657 ap->width = frame_width + frame_padleft + frame_padright;
2658 ap->height = frame_height + frame_padtop + frame_padbottom;
2659 ap->pix_fmt = frame_pix_fmt;
2660 ap->channel = video_channel;
2661 ap->standard = video_standard;
2662 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2663 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2664 if(pgmyuv_compatibility_hack)
2665 ap->video_codec_id= CODEC_ID_PGMYUV;
2666
2667 for(i=0; i<opt_name_count; i++){
2668 char buf[256];
2669 const AVOption *opt;
2670 const char *str= av_get_string(avformat_opts, opt_names[i], &opt, buf, sizeof(buf));
2671 if(str && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2672 av_set_string(ic, opt_names[i], str);
2673 }
2674
2675 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2676 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2677 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2678
2679 /* open the input file with generic libav function */
2680 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2681 if (err < 0) {
2682 print_error(filename, err);
2683 exit(1);
2684 }
2685 if(opt_programid) {
2686 int i;
2687 for(i=0; i<ic->nb_programs; i++)
2688 if(ic->programs[i]->id != opt_programid)
2689 ic->programs[i]->discard = AVDISCARD_ALL;
2690 }
2691
2692 ic->loop_input = loop_input;
2693
2694 /* If not enough info to get the stream parameters, we decode the
2695 first frames to get it. (used in mpeg case for example) */
2696 ret = av_find_stream_info(ic);
2697 if (ret < 0 && verbose >= 0) {
2698 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2699 exit(1);
2700 }
2701
2702 timestamp = start_time;
2703 /* add the stream start time */
2704 if (ic->start_time != AV_NOPTS_VALUE)
2705 timestamp += ic->start_time;
2706
2707 /* if seeking requested, we execute it */
2708 if (start_time != 0) {
2709 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2710 if (ret < 0) {
2711 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2712 filename, (double)timestamp / AV_TIME_BASE);
2713 }
2714 /* reset seek info */
2715 start_time = 0;
2716 }
2717
2718 /* update the current parameters so that they match the one of the input stream */
2719 for(i=0;i<ic->nb_streams;i++) {
2720 int j;
2721 AVCodecContext *enc = ic->streams[i]->codec;
2722 if(thread_count>1)
2723 avcodec_thread_init(enc, thread_count);
2724 enc->thread_count= thread_count;
2725 switch(enc->codec_type) {
2726 case CODEC_TYPE_AUDIO:
2727 for(j=0; j<opt_name_count; j++){
2728 char buf[256];
2729 const AVOption *opt;
2730 const char *str= av_get_string(avctx_opts[CODEC_TYPE_AUDIO], opt_names[j], &opt, buf, sizeof(buf));
2731 if(str && (opt->flags & AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2732 av_set_string(enc, opt_names[j], str);
2733 }
2734 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2735 audio_channels = enc->channels;
2736 audio_sample_rate = enc->sample_rate;
2737 if(audio_disable)
2738 ic->streams[i]->discard= AVDISCARD_ALL;
2739 break;
2740 case CODEC_TYPE_VIDEO:
2741 for(j=0; j<opt_name_count; j++){
2742 char buf[256];
2743 const AVOption *opt;
2744 const char *str= av_get_string(avctx_opts[CODEC_TYPE_VIDEO], opt_names[j], &opt, buf, sizeof(buf));
2745 if(str && (opt->flags & AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2746 av_set_string(enc, opt_names[j], str);
2747 }
2748 frame_height = enc->height;
2749 frame_width = enc->width;
2750 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2751 frame_pix_fmt = enc->pix_fmt;
2752 rfps = ic->streams[i]->r_frame_rate.num;
2753 rfps_base = ic->streams[i]->r_frame_rate.den;
2754 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2755 if(me_threshold)
2756 enc->debug |= FF_DEBUG_MV;
2757
2758 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2759
2760 if (verbose >= 0)
2761 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2762 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2763
2764 (float)rfps / rfps_base, rfps, rfps_base);
2765 }
2766 /* update the current frame rate to match the stream frame rate */
2767 frame_rate.num = rfps;
2768 frame_rate.den = rfps_base;
2769
2770 enc->rate_emu = rate_emu;
2771 if(video_disable)
2772 ic->streams[i]->discard= AVDISCARD_ALL;
2773 else if(video_discard)
2774 ic->streams[i]->discard= video_discard;
2775 break;
2776 case CODEC_TYPE_DATA:
2777 break;
2778 case CODEC_TYPE_SUBTITLE:
2779 if(subtitle_disable)
2780 ic->streams[i]->discard = AVDISCARD_ALL;
2781 break;
2782 case CODEC_TYPE_ATTACHMENT:
2783 case CODEC_TYPE_UNKNOWN:
2784 break;
2785 default:
2786 abort();
2787 }
2788 }
2789
2790 input_files[nb_input_files] = ic;
2791 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2792 /* dump the file content */
2793 if (verbose >= 0)
2794 dump_format(ic, nb_input_files, filename, 0);
2795
2796 nb_input_files++;
2797 file_iformat = NULL;
2798 file_oformat = NULL;
2799
2800 video_channel = 0;
2801
2802 rate_emu = 0;
2803 av_freep(&video_codec_name);
2804 av_freep(&audio_codec_name);
2805 av_freep(&subtitle_codec_name);
2806 }
2807
2808 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2809 int *has_subtitle_ptr)
2810 {
2811 int has_video, has_audio, has_subtitle, i, j;
2812 AVFormatContext *ic;
2813
2814 has_video = 0;
2815 has_audio = 0;
2816 has_subtitle = 0;
2817 for(j=0;j<nb_input_files;j++) {
2818 ic = input_files[j];
2819 for(i=0;i<ic->nb_streams;i++) {
2820 AVCodecContext *enc = ic->streams[i]->codec;
2821 switch(enc->codec_type) {
2822 case CODEC_TYPE_AUDIO:
2823 has_audio = 1;
2824 break;
2825 case CODEC_TYPE_VIDEO:
2826 has_video = 1;
2827 break;
2828 case CODEC_TYPE_SUBTITLE:
2829 has_subtitle = 1;
2830 break;
2831 case CODEC_TYPE_DATA:
2832 case CODEC_TYPE_ATTACHMENT:
2833 case CODEC_TYPE_UNKNOWN:
2834 break;
2835 default:
2836 abort();
2837 }
2838 }
2839 }
2840 *has_video_ptr = has_video;
2841 *has_audio_ptr = has_audio;
2842 *has_subtitle_ptr = has_subtitle;
2843 }
2844
2845 static void new_video_stream(AVFormatContext *oc)
2846 {
2847 AVStream *st;
2848 AVCodecContext *video_enc;
2849 int codec_id;
2850
2851 st = av_new_stream(oc, oc->nb_streams);
2852 if (!st) {
2853 fprintf(stderr, "Could not alloc stream\n");
2854 exit(1);
2855 }
2856 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2857 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2858 video_bitstream_filters= NULL;
2859
2860 if(thread_count>1)
2861 avcodec_thread_init(st->codec, thread_count);
2862
2863 video_enc = st->codec;
2864
2865 if(video_codec_tag)
2866 video_enc->codec_tag= video_codec_tag;
2867
2868 if( (video_global_header&1)
2869 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2870 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2871 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2872 }
2873 if(video_global_header&2){
2874 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2875 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2876 }
2877
2878 if (video_stream_copy) {
2879 st->stream_copy = 1;
2880 video_enc->codec_type = CODEC_TYPE_VIDEO;
2881 } else {
2882 const char *p;
2883 int i;
2884 AVCodec *codec;
2885 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
2886
2887 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2888 if (video_codec_name)
2889 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
2890
2891 video_enc->codec_id = codec_id;
2892 codec = avcodec_find_encoder(codec_id);
2893
2894 for(i=0; i<opt_name_count; i++){
2895 char buf[256];
2896 const AVOption *opt;
2897 const char *str= av_get_string(avctx_opts[CODEC_TYPE_VIDEO], opt_names[i], &opt, buf, sizeof(buf));
2898 if(str && (opt->flags & AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
2899 av_set_string(video_enc, opt_names[i], str);
2900 }
2901
2902 video_enc->time_base.den = fps.num;
2903 video_enc->time_base.num = fps.den;
2904 if(codec && codec->supported_framerates){
2905 const AVRational *p= codec->supported_framerates;
2906 const AVRational *best=NULL;
2907 AVRational best_error= (AVRational){INT_MAX, 1};
2908 for(; p->den!=0; p++){
2909 AVRational error= av_sub_q(fps, *p);
2910 if(error.num <0) error.num *= -1;
2911 if(av_cmp_q(error, best_error) < 0){
2912 best_error= error;
2913 best= p;
2914 }
2915 }
2916 video_enc->time_base.den= best->num;
2917 video_enc->time_base.num= best->den;
2918 }
2919
2920 video_enc->width = frame_width + frame_padright + frame_padleft;
2921 video_enc->height = frame_height + frame_padtop + frame_padbottom;
2922 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
2923 video_enc->pix_fmt = frame_pix_fmt;
2924
2925 if(codec && codec->pix_fmts){
2926 const enum PixelFormat *p= codec->pix_fmts;
2927 for(; *p!=-1; p++){
2928 if(*p == video_enc->pix_fmt)
2929 break;
2930 }
2931 if(*p == -1)
2932 video_enc->pix_fmt = codec->pix_fmts[0];
2933 }
2934
2935 if (intra_only)
2936 video_enc->gop_size = 0;
2937 if (video_qscale || same_quality) {
2938 video_enc->flags |= CODEC_FLAG_QSCALE;
2939 video_enc->global_quality=
2940 st->quality = FF_QP2LAMBDA * video_qscale;
2941 }
2942
2943 if(intra_matrix)
2944 video_enc->intra_matrix = intra_matrix;
2945 if(inter_matrix)
2946 video_enc->inter_matrix = inter_matrix;
2947
2948 video_enc->max_qdiff = video_qdiff;
2949 video_enc->thread_count = thread_count;
2950 p= video_rc_override_string;
2951 for(i=0; p; i++){
2952 int start, end, q;
2953 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2954 if(e!=3){
2955 fprintf(stderr, "error parsing rc_override\n");
2956 exit(1);
2957 }
2958 video_enc->rc_override=
2959 av_realloc(video_enc->rc_override,
2960 sizeof(RcOverride)*(i+1));
2961 video_enc->rc_override[i].start_frame= start;
2962 video_enc->rc_override[i].end_frame = end;
2963 if(q>0){
2964 video_enc->rc_override[i].qscale= q;
2965 video_enc->rc_override[i].quality_factor= 1.0;
2966 }
2967 else{
2968 video_enc->rc_override[i].qscale= 0;
2969 video_enc->rc_override[i].quality_factor= -q/100.0;
2970 }
2971 p= strchr(p, '/');
2972 if(p) p++;
2973 }
2974 video_enc->rc_override_count=i;
2975 if (!video_enc->rc_initial_buffer_occupancy)
2976 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
2977 video_enc->me_threshold= me_threshold;
2978 video_enc->intra_dc_precision= intra_dc_precision - 8;
2979 video_enc->strict_std_compliance = strict;
2980
2981 if (do_psnr)
2982 video_enc->flags|= CODEC_FLAG_PSNR;
2983
2984 /* two pass mode */
2985 if (do_pass) {
2986 if (do_pass == 1) {
2987 video_enc->flags |= CODEC_FLAG_PASS1;
2988 } else {
2989 video_enc->flags |= CODEC_FLAG_PASS2;
2990 }
2991 }
2992 }
2993
2994 /* reset some key parameters */
2995 video_disable = 0;
2996 av_freep(&video_codec_name);
2997 video_stream_copy = 0;
2998 }
2999
3000 static void new_audio_stream(AVFormatContext *oc)
3001 {
3002 AVStream *st;
3003 AVCodecContext *audio_enc;
3004 int codec_id, i;
3005
3006 st = av_new_stream(oc, oc->nb_streams);
3007 if (!st) {
3008 fprintf(stderr, "Could not alloc stream\n");
3009 exit(1);
3010 }
3011 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3012
3013 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3014 audio_bitstream_filters= NULL;
3015
3016 if(thread_count>1)
3017 avcodec_thread_init(st->codec, thread_count);
3018
3019 audio_enc = st->codec;
3020 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3021 audio_enc->strict_std_compliance = strict;
3022
3023 if(audio_codec_tag)
3024 audio_enc->codec_tag= audio_codec_tag;
3025
3026 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3027 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3028 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3029 }
3030 if (audio_stream_copy) {
3031 st->stream_copy = 1;
3032 audio_enc->channels = audio_channels;
3033 } else {
3034 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3035
3036 for(i=0; i<opt_name_count; i++){
3037 char buf[256];
3038 const AVOption *opt;
3039 const char *str= av_get_string(avctx_opts[CODEC_TYPE_AUDIO], opt_names[i], &opt, buf, sizeof(buf));
3040 if(str && (opt->flags & AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
3041 av_set_string(audio_enc, opt_names[i], str);
3042 }
3043
3044 if (audio_codec_name)
3045 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3046 audio_enc->codec_id = codec_id;
3047
3048 if (audio_qscale > QSCALE_NONE) {
3049 audio_enc->flags |= CODEC_FLAG_QSCALE;
3050 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3051 }
3052 audio_enc->thread_count = thread_count;
3053 audio_enc->channels = audio_channels;
3054 }
3055 audio_enc->sample_rate = audio_sample_rate;
3056 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3057 if (audio_language) {
3058 av_strlcpy(st->language, audio_language, sizeof(st->language));
3059 av_free(audio_language);
3060 audio_language = NULL;
3061 }
3062
3063 /* reset some key parameters */
3064 audio_disable = 0;
3065 av_freep(&audio_codec_name);
3066 audio_stream_copy = 0;
3067 }
3068
3069 static void new_subtitle_stream(AVFormatContext *oc)
3070 {
3071 AVStream *st;
3072 AVCodecContext *subtitle_enc;
3073 int i;
3074
3075 st = av_new_stream(oc, oc->nb_streams);
3076 if (!st) {
3077 fprintf(stderr, "Could not alloc stream\n");
3078 exit(1);
3079 }
3080 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3081
3082 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3083 subtitle_bitstream_filters= NULL;
3084
3085 subtitle_enc = st->codec;
3086 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3087 if (subtitle_stream_copy) {
3088 st->stream_copy = 1;
3089 } else {
3090 for(i=0; i<opt_name_count; i++){
3091 char buf[256];
3092 const AVOption *opt;
3093 const char *str= av_get_string(avctx_opts[CODEC_TYPE_SUBTITLE], opt_names[i], &opt, buf, sizeof(buf));
3094 if(str && (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
3095 av_set_string(subtitle_enc, opt_names[i], str);
3096 }
3097 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3098 }
3099
3100 if (subtitle_language) {
3101 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
3102 av_free(subtitle_language);
3103 subtitle_language = NULL;
3104 }
3105
3106 subtitle_disable = 0;
3107 av_freep(&subtitle_codec_name);
3108 subtitle_stream_copy = 0;
3109 }
3110
3111 static void opt_new_audio_stream(void)
3112 {
3113 AVFormatContext *oc;
3114 if (nb_output_files <= 0) {
3115 fprintf(stderr, "At least one output file must be specified\n");
3116 exit(1);
3117 }
3118 oc = output_files[nb_output_files - 1];
3119 new_audio_stream(oc);
3120 }
3121
3122 static void opt_new_video_stream(void)
3123 {
3124 AVFormatContext *oc;
3125 if (nb_output_files <= 0) {
3126 fprintf(stderr, "At least one output file must be specified\n");
3127 exit(1);
3128 }
3129 oc = output_files[nb_output_files - 1];
3130 new_video_stream(oc);
3131 }
3132
3133 static void opt_new_subtitle_stream(void)
3134 {
3135 AVFormatContext *oc;
3136 if (nb_output_files <= 0) {
3137 fprintf(stderr, "At least one output file must be specified\n");
3138 exit(1);
3139 }
3140 oc = output_files[nb_output_files - 1];
3141 new_subtitle_stream(oc);
3142 }
3143
3144 static void opt_output_file(const char *filename)
3145 {
3146 AVFormatContext *oc;
3147 int use_video, use_audio, use_subtitle;
3148 int input_has_video, input_has_audio, input_has_subtitle, i;
3149 AVFormatParameters params, *ap = &params;
3150
3151 if (!strcmp(filename, "-"))
3152 filename = "pipe:";
3153
3154 oc = av_alloc_format_context();
3155
3156 if (!file_oformat) {
3157 file_oformat = guess_format(NULL, filename, NULL);
3158 if (!file_oformat) {
3159 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3160 filename);
3161 exit(1);
3162 }
3163 }
3164
3165 oc->oformat = file_oformat;
3166 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3167
3168 if (!strcmp(file_oformat->name, "ffm") &&
3169 av_strstart(filename, "http:", NULL)) {
3170 /* special case for files sent to ffserver: we get the stream
3171 parameters from ffserver */
3172 if (read_ffserver_streams(oc, filename) < 0) {
3173 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
3174 exit(1);
3175 }
3176 } else {
3177 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3178 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3179 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3180
3181 /* disable if no corresponding type found and at least one
3182 input file */
3183 if (nb_input_files > 0) {
3184 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3185 &input_has_subtitle);
3186 if (!input_has_video)
3187 use_video = 0;
3188 if (!input_has_audio)
3189 use_audio = 0;
3190 if (!input_has_subtitle)
3191 use_subtitle = 0;
3192 }
3193
3194 /* manual disable */
3195 if (audio_disable) {
3196 use_audio = 0;
3197 }
3198 if (video_disable) {
3199 use_video = 0;
3200 }
3201 if (subtitle_disable) {
3202 use_subtitle = 0;
3203 }
3204
3205 if (use_video) {
3206 new_video_stream(oc);
3207 }
3208
3209 if (use_audio) {
3210 new_audio_stream(oc);
3211 }
3212
3213 if (use_subtitle) {
3214 new_subtitle_stream(oc);
3215 }
3216
3217 oc->timestamp = rec_timestamp;
3218
3219 if (str_title)
3220 av_strlcpy(oc->title, str_title, sizeof(oc->title));
3221 if (str_author)
3222 av_strlcpy(oc->author, str_author, sizeof(oc->author));
3223 if (str_copyright)
3224 av_strlcpy(oc->copyright, str_copyright, sizeof(oc->copyright));
3225 if (str_comment)
3226 av_strlcpy(oc->comment, str_comment, sizeof(oc->comment));
3227 if (str_album)
3228