Make av_fifo*_read() ignore the available amount of data.
[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 "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavformat/framehook.h"
34 #include "libavcodec/opt.h"
35 #include "libavutil/fifo.h"
36 #include "libavutil/avstring.h"
37 #include "libavformat/os_support.h"
38
39 #ifdef HAVE_SYS_RESOURCE_H
40 #include <sys/types.h>
41 #include <sys/resource.h>
42 #elif defined(HAVE_GETPROCESSTIMES)
43 #include <windows.h>
44 #endif
45
46 #if defined(HAVE_TERMIOS_H)
47 #include <unistd.h>
48 #include <fcntl.h>
49 #include <sys/ioctl.h>
50 #include <sys/time.h>
51 #include <termios.h>
52 #elif defined(HAVE_CONIO_H)
53 #include <conio.h>
54 #endif
55 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
56 #include <time.h>
57
58 #include "version.h"
59 #include "cmdutils.h"
60
61 #undef NDEBUG
62 #include <assert.h>
63
64 #undef exit
65
66 const char program_name[] = "FFmpeg";
67 static const int program_birth_year = 2000;
68
69 /* select an input stream for an output stream */
70 typedef struct AVStreamMap {
71 int file_index;
72 int stream_index;
73 int sync_file_index;
74 int sync_stream_index;
75 } AVStreamMap;
76
77 /** select an input file for an output file */
78 typedef struct AVMetaDataMap {
79 int out_file;
80 int in_file;
81 } AVMetaDataMap;
82
83 static const OptionDef options[];
84
85 #define MAX_FILES 20
86
87 static AVFormatContext *input_files[MAX_FILES];
88 static int64_t input_files_ts_offset[MAX_FILES];
89 static int nb_input_files = 0;
90
91 static AVFormatContext *output_files[MAX_FILES];
92 static int nb_output_files = 0;
93
94 static AVStreamMap stream_maps[MAX_FILES];
95 static int nb_stream_maps;
96
97 static AVMetaDataMap meta_data_maps[MAX_FILES];
98 static int nb_meta_data_maps;
99
100 static AVInputFormat *file_iformat;
101 static AVOutputFormat *file_oformat;
102 static int frame_width = 0;
103 static int frame_height = 0;
104 static float frame_aspect_ratio = 0;
105 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
106 static int frame_padtop = 0;
107 static int frame_padbottom = 0;
108 static int frame_padleft = 0;
109 static int frame_padright = 0;
110 static int padcolor[3] = {16,128,128}; /* default to black */
111 static int frame_topBand = 0;
112 static int frame_bottomBand = 0;
113 static int frame_leftBand = 0;
114 static int frame_rightBand = 0;
115 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
116 static AVRational frame_rate = (AVRational) {0,0};
117 static float video_qscale = 0;
118 static int video_qdiff = 3;
119 static uint16_t *intra_matrix = NULL;
120 static uint16_t *inter_matrix = NULL;
121 #if 0 //experimental, (can be removed)
122 static float video_rc_qsquish=1.0;
123 static float video_rc_qmod_amp=0;
124 static int video_rc_qmod_freq=0;
125 #endif
126 static const char *video_rc_override_string=NULL;
127 static int video_disable = 0;
128 static int video_discard = 0;
129 static char *video_codec_name = NULL;
130 static int video_codec_tag = 0;
131 static int same_quality = 0;
132 static int do_deinterlace = 0;
133 static int strict = 0;
134 static int top_field_first = -1;
135 static int me_threshold = 0;
136 static int intra_dc_precision = 8;
137 static int loop_input = 0;
138 static int loop_output = AVFMT_NOOUTPUTLOOP;
139 static int qp_hist = 0;
140
141 static int intra_only = 0;
142 static int audio_sample_rate = 44100;
143 #define QSCALE_NONE -99999
144 static float audio_qscale = QSCALE_NONE;
145 static int audio_disable = 0;
146 static int audio_channels = 1;
147 static char *audio_codec_name = NULL;
148 static int audio_codec_tag = 0;
149 static char *audio_language = NULL;
150
151 static int subtitle_disable = 0;
152 static char *subtitle_codec_name = NULL;
153 static char *subtitle_language = NULL;
154
155 static float mux_preload= 0.5;
156 static float mux_max_delay= 0.7;
157
158 static int64_t recording_time = 0;
159 static int64_t start_time = 0;
160 static int64_t rec_timestamp = 0;
161 static int64_t input_ts_offset = 0;
162 static int file_overwrite = 0;
163 static char *str_title = NULL;
164 static char *str_author = NULL;
165 static char *str_copyright = NULL;
166 static char *str_comment = NULL;
167 static char *str_genre = NULL;
168 static char *str_album = NULL;
169 static int do_benchmark = 0;
170 static int do_hex_dump = 0;
171 static int do_pkt_dump = 0;
172 static int do_psnr = 0;
173 static int do_pass = 0;
174 static char *pass_logfilename = NULL;
175 static int audio_stream_copy = 0;
176 static int video_stream_copy = 0;
177 static int subtitle_stream_copy = 0;
178 static int video_sync_method= 1;
179 static int audio_sync_method= 0;
180 static float audio_drift_threshold= 0.1;
181 static int copy_ts= 0;
182 static int opt_shortest = 0; //
183 static int video_global_header = 0;
184 static char *vstats_filename;
185 static FILE *vstats_file;
186 static int opt_programid = 0;
187
188 static int rate_emu = 0;
189
190 static int video_channel = 0;
191 static char *video_standard;
192
193 static int audio_volume = 256;
194
195 static int using_stdin = 0;
196 static int using_vhook = 0;
197 static int verbose = 1;
198 static int thread_count= 1;
199 static int q_pressed = 0;
200 static int64_t video_size = 0;
201 static int64_t audio_size = 0;
202 static int64_t extra_size = 0;
203 static int nb_frames_dup = 0;
204 static int nb_frames_drop = 0;
205 static int input_sync;
206 static uint64_t limit_filesize = 0; //
207
208 static int pgmyuv_compatibility_hack=0;
209 static float dts_delta_threshold = 10;
210
211 static unsigned int sws_flags = SWS_BICUBIC;
212
213 static const char **opt_names;
214 static int opt_name_count;
215 static AVCodecContext *avctx_opts[CODEC_TYPE_NB];
216 static AVFormatContext *avformat_opts;
217 static struct SwsContext *sws_opts;
218 static int64_t timer_start;
219
220 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
221 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
222 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
224
225 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
226
227 struct AVInputStream;
228
229 typedef struct AVOutputStream {
230 int file_index; /* file index */
231 int index; /* stream index in the output file */
232 int source_index; /* AVInputStream index */
233 AVStream *st; /* stream in the output file */
234 int encoding_needed; /* true if encoding needed for this stream */
235 int frame_number;
236 /* input pts and corresponding output pts
237 for A/V sync */
238 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
239 struct AVInputStream *sync_ist; /* input stream to sync against */
240 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
241 /* video only */
242 int video_resample;
243 AVFrame pict_tmp; /* temporary image for resampling */
244 struct SwsContext *img_resample_ctx; /* for image resampling */
245 int resample_height;
246
247 int video_crop;
248 int topBand; /* cropping area sizes */
249 int leftBand;
250
251 int video_pad;
252 int padtop; /* padding area sizes */
253 int padbottom;
254 int padleft;
255 int padright;
256
257 /* audio only */
258 int audio_resample;
259 ReSampleContext *resample; /* for audio resampling */
260 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
261 FILE *logfile;
262 } AVOutputStream;
263
264 typedef struct AVInputStream {
265 int file_index;
266 int index;
267 AVStream *st;
268 int discard; /* true if stream data should be discarded */
269 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
270 int64_t sample_index; /* current sample */
271
272 int64_t start; /* time when read started */
273 unsigned long frame; /* current frame */
274 int64_t next_pts; /* synthetic pts for cases where pkt.pts
275 is not defined */
276 int64_t pts; /* current pts */
277 int is_start; /* is 1 at the start and after a discontinuity */
278 } AVInputStream;
279
280 typedef struct AVInputFile {
281 int eof_reached; /* true if eof reached */
282 int ist_index; /* index of first stream in ist_table */
283 int buffer_size; /* current total buffer size */
284 int nb_streams; /* nb streams we are aware of */
285 } AVInputFile;
286
287 #ifdef HAVE_TERMIOS_H
288
289 /* init terminal so that we can grab keys */
290 static struct termios oldtty;
291 #endif
292
293 static void term_exit(void)
294 {
295 #ifdef HAVE_TERMIOS_H
296 tcsetattr (0, TCSANOW, &oldtty);
297 #endif
298 }
299
300 static volatile sig_atomic_t received_sigterm = 0;
301
302 static void
303 sigterm_handler(int sig)
304 {
305 received_sigterm = sig;
306 term_exit();
307 }
308
309 static void term_init(void)
310 {
311 #ifdef HAVE_TERMIOS_H
312 struct termios tty;
313
314 tcgetattr (0, &tty);
315 oldtty = tty;
316
317 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
318 |INLCR|IGNCR|ICRNL|IXON);
319 tty.c_oflag |= OPOST;
320 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
321 tty.c_cflag &= ~(CSIZE|PARENB);
322 tty.c_cflag |= CS8;
323 tty.c_cc[VMIN] = 1;
324 tty.c_cc[VTIME] = 0;
325
326 tcsetattr (0, TCSANOW, &tty);
327 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
328 #endif
329
330 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
331 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
332 /*
333 register a function to be called at normal program termination
334 */
335 atexit(term_exit);
336 #ifdef CONFIG_BEOS_NETSERVER
337 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
338 #endif
339 }
340
341 /* read a key without blocking */
342 static int read_key(void)
343 {
344 #if defined(HAVE_TERMIOS_H)
345 int n = 1;
346 unsigned char ch;
347 #ifndef CONFIG_BEOS_NETSERVER
348 struct timeval tv;
349 fd_set rfds;
350
351 FD_ZERO(&rfds);
352 FD_SET(0, &rfds);
353 tv.tv_sec = 0;
354 tv.tv_usec = 0;
355 n = select(1, &rfds, NULL, NULL, &tv);
356 #endif
357 if (n > 0) {
358 n = read(0, &ch, 1);
359 if (n == 1)
360 return ch;
361
362 return n;
363 }
364 #elif defined(HAVE_CONIO_H)
365 if(kbhit())
366 return(getch());
367 #endif
368 return -1;
369 }
370
371 static int decode_interrupt_cb(void)
372 {
373 return q_pressed || (q_pressed = read_key() == 'q');
374 }
375
376 static int av_exit(int ret)
377 {
378 int i;
379
380 /* close files */
381 for(i=0;i<nb_output_files;i++) {
382 /* maybe av_close_output_file ??? */
383 AVFormatContext *s = output_files[i];
384 int j;
385 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
386 url_fclose(s->pb);
387 for(j=0;j<s->nb_streams;j++) {
388 av_free(s->streams[j]->codec);
389 av_free(s->streams[j]);
390 }
391 av_free(s);
392 }
393 for(i=0;i<nb_input_files;i++)
394 av_close_input_file(input_files[i]);
395
396 av_free_static();
397
398 av_free(intra_matrix);
399 av_free(inter_matrix);
400
401 if (vstats_file)
402 fclose(vstats_file);
403 av_free(vstats_filename);
404
405 av_free(opt_names);
406
407 av_free(video_codec_name);
408 av_free(audio_codec_name);
409 av_free(subtitle_codec_name);
410
411 av_free(video_standard);
412
413 #ifdef CONFIG_POWERPC_PERF
414 extern void powerpc_display_perf_report(void);
415 powerpc_display_perf_report();
416 #endif /* CONFIG_POWERPC_PERF */
417
418 if (received_sigterm) {
419 fprintf(stderr,
420 "Received signal %d: terminating.\n",
421 (int) received_sigterm);
422 exit (255);
423 }
424
425 exit(ret); /* not all OS-es handle main() return value */
426 return ret;
427 }
428
429 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
430 {
431 int i, err;
432 AVFormatContext *ic;
433
434 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
435 if (err < 0)
436 return err;
437 /* copy stream format */
438 s->nb_streams = ic->nb_streams;
439 for(i=0;i<ic->nb_streams;i++) {
440 AVStream *st;
441
442 // FIXME: a more elegant solution is needed
443 st = av_mallocz(sizeof(AVStream));
444 memcpy(st, ic->streams[i], sizeof(AVStream));
445 st->codec = avcodec_alloc_context();
446 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
447 s->streams[i] = st;
448 }
449
450 av_close_input_file(ic);
451 return 0;
452 }
453
454 static double
455 get_sync_ipts(const AVOutputStream *ost)
456 {
457 const AVInputStream *ist = ost->sync_ist;
458 return (double)(ist->pts - start_time)/AV_TIME_BASE;
459 }
460
461 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
462 int ret;
463
464 while(bsfc){
465 AVPacket new_pkt= *pkt;
466 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
467 &new_pkt.data, &new_pkt.size,
468 pkt->data, pkt->size,
469 pkt->flags & PKT_FLAG_KEY);
470 if(a>0){
471 av_free_packet(pkt);
472 new_pkt.destruct= av_destruct_packet;
473 } else if(a<0){
474 fprintf(stderr, "%s failed for stream %d, codec %s",
475 bsfc->filter->name, pkt->stream_index,
476 avctx->codec ? avctx->codec->name : "copy");
477 print_error("", a);
478 }
479 *pkt= new_pkt;
480
481 bsfc= bsfc->next;
482 }
483
484 ret= av_interleaved_write_frame(s, pkt);
485 if(ret < 0){
486 print_error("av_interleaved_write_frame()", ret);
487 av_exit(1);
488 }
489 }
490
491 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
492
493 static void do_audio_out(AVFormatContext *s,
494 AVOutputStream *ost,
495 AVInputStream *ist,
496 unsigned char *buf, int size)
497 {
498 uint8_t *buftmp;
499 static uint8_t *audio_buf = NULL;
500 static uint8_t *audio_out = NULL;
501 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
502
503 int size_out, frame_bytes, ret;
504 AVCodecContext *enc= ost->st->codec;
505 AVCodecContext *dec= ist->st->codec;
506
507 /* SC: dynamic allocation of buffers */
508 if (!audio_buf)
509 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
510 if (!audio_out)
511 audio_out = av_malloc(audio_out_size);
512 if (!audio_buf || !audio_out)
513 return; /* Should signal an error ! */
514
515 if (enc->channels != dec->channels)
516 ost->audio_resample = 1;
517
518 if (ost->audio_resample && !ost->resample) {
519 ost->resample = audio_resample_init(enc->channels, dec->channels,
520 enc->sample_rate, dec->sample_rate);
521 if (!ost->resample) {
522 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
523 dec->channels, dec->sample_rate,
524 enc->channels, enc->sample_rate);
525 av_exit(1);
526 }
527 }
528
529 if(audio_sync_method){
530 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
531 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
532 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
533 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
534
535 //FIXME resample delay
536 if(fabs(delta) > 50){
537 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
538 if(byte_delta < 0){
539 byte_delta= FFMAX(byte_delta, -size);
540 size += byte_delta;
541 buf -= byte_delta;
542 if(verbose > 2)
543 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
544 if(!size)
545 return;
546 ist->is_start=0;
547 }else{
548 static uint8_t *input_tmp= NULL;
549 input_tmp= av_realloc(input_tmp, byte_delta + size);
550
551 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
552 ist->is_start=0;
553 else
554 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
555
556 memset(input_tmp, 0, byte_delta);
557 memcpy(input_tmp + byte_delta, buf, size);
558 buf= input_tmp;
559 size += byte_delta;
560 if(verbose > 2)
561 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
562 }
563 }else if(audio_sync_method>1){
564 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
565 assert(ost->audio_resample);
566 if(verbose > 2)
567 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
568 // 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));
569 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
570 }
571 }
572 }else
573 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
574 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
575
576 if (ost->audio_resample) {
577 buftmp = audio_buf;
578 size_out = audio_resample(ost->resample,
579 (short *)buftmp, (short *)buf,
580 size / (ist->st->codec->channels * 2));
581 size_out = size_out * enc->channels * 2;
582 } else {
583 buftmp = buf;
584 size_out = size;
585 }
586
587 /* now encode as many frames as possible */
588 if (enc->frame_size > 1) {
589 /* output resampled raw samples */
590 av_fifo_realloc(&ost->fifo, av_fifo_size(&ost->fifo) + size_out + 1);
591 av_fifo_write(&ost->fifo, buftmp, size_out);
592
593 frame_bytes = enc->frame_size * 2 * enc->channels;
594
595 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
596 AVPacket pkt;
597 av_init_packet(&pkt);
598
599 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
600
601 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
602
603 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
604 (short *)audio_buf);
605 audio_size += ret;
606 pkt.stream_index= ost->index;
607 pkt.data= audio_out;
608 pkt.size= ret;
609 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
610 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
611 pkt.flags |= PKT_FLAG_KEY;
612 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
613
614 ost->sync_opts += enc->frame_size;
615 }
616 } else {
617 AVPacket pkt;
618 av_init_packet(&pkt);
619
620 ost->sync_opts += size_out / (2 * enc->channels);
621
622 /* output a pcm frame */
623 /* XXX: change encoding codec API to avoid this ? */
624 switch(enc->codec->id) {
625 case CODEC_ID_PCM_S32LE:
626 case CODEC_ID_PCM_S32BE:
627 case CODEC_ID_PCM_U32LE:
628 case CODEC_ID_PCM_U32BE:
629 size_out = size_out << 1;
630 break;
631 case CODEC_ID_PCM_S24LE:
632 case CODEC_ID_PCM_S24BE:
633 case CODEC_ID_PCM_U24LE:
634 case CODEC_ID_PCM_U24BE:
635 case CODEC_ID_PCM_S24DAUD:
636 size_out = size_out / 2 * 3;
637 break;
638 case CODEC_ID_PCM_S16LE:
639 case CODEC_ID_PCM_S16BE:
640 case CODEC_ID_PCM_U16LE:
641 case CODEC_ID_PCM_U16BE:
642 break;
643 default:
644 size_out = size_out >> 1;
645 break;
646 }
647 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
648 ret = avcodec_encode_audio(enc, audio_out, size_out,
649 (short *)buftmp);
650 audio_size += ret;
651 pkt.stream_index= ost->index;
652 pkt.data= audio_out;
653 pkt.size= ret;
654 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
655 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
656 pkt.flags |= PKT_FLAG_KEY;
657 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
658 }
659 }
660
661 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
662 {
663 AVCodecContext *dec;
664 AVPicture *picture2;
665 AVPicture picture_tmp;
666 uint8_t *buf = 0;
667
668 dec = ist->st->codec;
669
670 /* deinterlace : must be done before any resize */
671 if (do_deinterlace || using_vhook) {
672 int size;
673
674 /* create temporary picture */
675 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
676 buf = av_malloc(size);
677 if (!buf)
678 return;
679
680 picture2 = &picture_tmp;
681 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
682
683 if (do_deinterlace){
684 if(avpicture_deinterlace(picture2, picture,
685 dec->pix_fmt, dec->width, dec->height) < 0) {
686 /* if error, do not deinterlace */
687 av_free(buf);
688 buf = NULL;
689 picture2 = picture;
690 }
691 } else {
692 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
693 }
694 } else {
695 picture2 = picture;
696 }
697
698 if (ENABLE_VHOOK)
699 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
700 1000000 * ist->pts / AV_TIME_BASE);
701
702 if (picture != picture2)
703 *picture = *picture2;
704 *bufp = buf;
705 }
706
707 /* we begin to correct av delay at this threshold */
708 #define AV_DELAY_MAX 0.100
709
710 static void do_subtitle_out(AVFormatContext *s,
711 AVOutputStream *ost,
712 AVInputStream *ist,
713 AVSubtitle *sub,
714 int64_t pts)
715 {
716 static uint8_t *subtitle_out = NULL;
717 int subtitle_out_max_size = 65536;
718 int subtitle_out_size, nb, i;
719 AVCodecContext *enc;
720 AVPacket pkt;
721
722 if (pts == AV_NOPTS_VALUE) {
723 fprintf(stderr, "Subtitle packets must have a pts\n");
724 return;
725 }
726
727 enc = ost->st->codec;
728
729 if (!subtitle_out) {
730 subtitle_out = av_malloc(subtitle_out_max_size);
731 }
732
733 /* Note: DVB subtitle need one packet to draw them and one other
734 packet to clear them */
735 /* XXX: signal it in the codec context ? */
736 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
737 nb = 2;
738 else
739 nb = 1;
740
741 for(i = 0; i < nb; i++) {
742 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
743 subtitle_out_max_size, sub);
744
745 av_init_packet(&pkt);
746 pkt.stream_index = ost->index;
747 pkt.data = subtitle_out;
748 pkt.size = subtitle_out_size;
749 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
750 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
751 /* XXX: the pts correction is handled here. Maybe handling
752 it in the codec would be better */
753 if (i == 0)
754 pkt.pts += 90 * sub->start_display_time;
755 else
756 pkt.pts += 90 * sub->end_display_time;
757 }
758 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
759 }
760 }
761
762 static int bit_buffer_size= 1024*256;
763 static uint8_t *bit_buffer= NULL;
764
765 static void do_video_out(AVFormatContext *s,
766 AVOutputStream *ost,
767 AVInputStream *ist,
768 AVFrame *in_picture,
769 int *frame_size)
770 {
771 int nb_frames, i, ret;
772 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
773 AVFrame picture_crop_temp, picture_pad_temp;
774 AVCodecContext *enc, *dec;
775
776 avcodec_get_frame_defaults(&picture_crop_temp);
777 avcodec_get_frame_defaults(&picture_pad_temp);
778
779 enc = ost->st->codec;
780 dec = ist->st->codec;
781
782 /* by default, we output a single frame */
783 nb_frames = 1;
784
785 *frame_size = 0;
786
787 if(video_sync_method){
788 double vdelta;
789 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
790 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
791 if (vdelta < -1.1)
792 nb_frames = 0;
793 else if (video_sync_method == 2)
794 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
795 else if (vdelta > 1.1)
796 nb_frames = lrintf(vdelta);
797 //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);
798 if (nb_frames == 0){
799 ++nb_frames_drop;
800 if (verbose>2)
801 fprintf(stderr, "*** drop!\n");
802 }else if (nb_frames > 1) {
803 nb_frames_dup += nb_frames;
804 if (verbose>2)
805 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
806 }
807 }else
808 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
809
810 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
811 if (nb_frames <= 0)
812 return;
813
814 if (ost->video_crop) {
815 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
816 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
817 return;
818 }
819 formatted_picture = &picture_crop_temp;
820 } else {
821 formatted_picture = in_picture;
822 }
823
824 final_picture = formatted_picture;
825 padding_src = formatted_picture;
826 resampling_dst = &ost->pict_tmp;
827 if (ost->video_pad) {
828 final_picture = &ost->pict_tmp;
829 if (ost->video_resample) {
830 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
831 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
832 return;
833 }
834 resampling_dst = &picture_pad_temp;
835 }
836 }
837
838 if (ost->video_resample) {
839 padding_src = NULL;
840 final_picture = &ost->pict_tmp;
841 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
842 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
843 }
844
845 if (ost->video_pad) {
846 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
847 enc->height, enc->width, enc->pix_fmt,
848 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
849 }
850
851 /* duplicates frame if needed */
852 for(i=0;i<nb_frames;i++) {
853 AVPacket pkt;
854 av_init_packet(&pkt);
855 pkt.stream_index= ost->index;
856
857 if (s->oformat->flags & AVFMT_RAWPICTURE) {
858 /* raw pictures are written as AVPicture structure to
859 avoid any copies. We support temorarily the older
860 method. */
861 AVFrame* old_frame = enc->coded_frame;
862 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
863 pkt.data= (uint8_t *)final_picture;
864 pkt.size= sizeof(AVPicture);
865 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
866 pkt.flags |= PKT_FLAG_KEY;
867
868 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
869 enc->coded_frame = old_frame;
870 } else {
871 AVFrame big_picture;
872
873 big_picture= *final_picture;
874 /* better than nothing: use input picture interlaced
875 settings */
876 big_picture.interlaced_frame = in_picture->interlaced_frame;
877 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
878 if(top_field_first == -1)
879 big_picture.top_field_first = in_picture->top_field_first;
880 else
881 big_picture.top_field_first = top_field_first;
882 }
883
884 /* handles sameq here. This is not correct because it may
885 not be a global option */
886 if (same_quality) {
887 big_picture.quality = ist->st->quality;
888 }else
889 big_picture.quality = ost->st->quality;
890 if(!me_threshold)
891 big_picture.pict_type = 0;
892 // big_picture.pts = AV_NOPTS_VALUE;
893 big_picture.pts= ost->sync_opts;
894 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
895 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
896 ret = avcodec_encode_video(enc,
897 bit_buffer, bit_buffer_size,
898 &big_picture);
899 if (ret == -1) {
900 fprintf(stderr, "Video encoding failed\n");
901 av_exit(1);
902 }
903 //enc->frame_number = enc->real_pict_num;
904 if(ret>0){
905 pkt.data= bit_buffer;
906 pkt.size= ret;
907 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
908 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
909 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
910 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
911 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
912
913 if(enc->coded_frame && enc->coded_frame->key_frame)
914 pkt.flags |= PKT_FLAG_KEY;
915 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
916 *frame_size = ret;
917 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
918 // enc->frame_number-1, enc->real_pict_num, ret,
919 // enc->pict_type);
920 /* if two pass, output log */
921 if (ost->logfile && enc->stats_out) {
922 fprintf(ost->logfile, "%s", enc->stats_out);
923 }
924 }
925 }
926 ost->sync_opts++;
927 ost->frame_number++;
928 }
929 }
930
931 static double psnr(double d){
932 return -10.0*log(d)/log(10.0);
933 }
934
935 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
936 int frame_size)
937 {
938 AVCodecContext *enc;
939 int frame_number;
940 double ti1, bitrate, avg_bitrate;
941
942 /* this is executed just the first time do_video_stats is called */
943 if (!vstats_file) {
944 vstats_file = fopen(vstats_filename, "w");
945 if (!vstats_file) {
946 perror("fopen");
947 av_exit(1);
948 }
949 }
950
951 enc = ost->st->codec;
952 if (enc->codec_type == CODEC_TYPE_VIDEO) {
953 frame_number = ost->frame_number;
954 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
955 if (enc->flags&CODEC_FLAG_PSNR)
956 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
957
958 fprintf(vstats_file,"f_size= %6d ", frame_size);
959 /* compute pts value */
960 ti1 = ost->sync_opts * av_q2d(enc->time_base);
961 if (ti1 < 0.01)
962 ti1 = 0.01;
963
964 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
965 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
966 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
967 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
968 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
969 }
970 }
971
972 static void print_report(AVFormatContext **output_files,
973 AVOutputStream **ost_table, int nb_ostreams,
974 int is_last_report)
975 {
976 char buf[1024];
977 AVOutputStream *ost;
978 AVFormatContext *oc, *os;
979 int64_t total_size;
980 AVCodecContext *enc;
981 int frame_number, vid, i;
982 double bitrate, ti1, pts;
983 static int64_t last_time = -1;
984 static int qp_histogram[52];
985
986 if (!is_last_report) {
987 int64_t cur_time;
988 /* display the report every 0.5 seconds */
989 cur_time = av_gettime();
990 if (last_time == -1) {
991 last_time = cur_time;
992 return;
993 }
994 if ((cur_time - last_time) < 500000)
995 return;
996 last_time = cur_time;
997 }
998
999
1000 oc = output_files[0];
1001
1002 total_size = url_fsize(oc->pb);
1003 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1004 total_size= url_ftell(oc->pb);
1005
1006 buf[0] = '\0';
1007 ti1 = 1e10;
1008 vid = 0;
1009 for(i=0;i<nb_ostreams;i++) {
1010 ost = ost_table[i];
1011 os = output_files[ost->file_index];
1012 enc = ost->st->codec;
1013 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1014 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1015 enc->coded_frame && !ost->st->stream_copy ?
1016 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1017 }
1018 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1019 float t = (av_gettime()-timer_start) / 1000000.0;
1020
1021 frame_number = ost->frame_number;
1022 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1023 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1024 enc->coded_frame && !ost->st->stream_copy ?
1025 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1026 if(is_last_report)
1027 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1028 if(qp_hist && enc->coded_frame){
1029 int j;
1030 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1031 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1032 qp_histogram[qp]++;
1033 for(j=0; j<32; j++)
1034 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1035 }
1036 if (enc->flags&CODEC_FLAG_PSNR){
1037 int j;
1038 double error, error_sum=0;
1039 double scale, scale_sum=0;
1040 char type[3]= {'Y','U','V'};
1041 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1042 for(j=0; j<3; j++){
1043 if(is_last_report){
1044 error= enc->error[j];
1045 scale= enc->width*enc->height*255.0*255.0*frame_number;
1046 }else{
1047 error= enc->coded_frame->error[j];
1048 scale= enc->width*enc->height*255.0*255.0;
1049 }
1050 if(j) scale/=4;
1051 error_sum += error;
1052 scale_sum += scale;
1053 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1054 }
1055 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1056 }
1057 vid = 1;
1058 }
1059 /* compute min output value */
1060 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1061 if ((pts < ti1) && (pts > 0))
1062 ti1 = pts;
1063 }
1064 if (ti1 < 0.01)
1065 ti1 = 0.01;
1066
1067 if (verbose || is_last_report) {
1068 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1069
1070 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1071 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1072 (double)total_size / 1024, ti1, bitrate);
1073
1074 if (verbose > 1)
1075 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1076 nb_frames_dup, nb_frames_drop);
1077
1078 if (verbose >= 0)
1079 fprintf(stderr, "%s \r", buf);
1080
1081 fflush(stderr);
1082 }
1083
1084 if (is_last_report && verbose >= 0){
1085 int64_t raw= audio_size + video_size + extra_size;
1086 fprintf(stderr, "\n");
1087 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1088 video_size/1024.0,
1089 audio_size/1024.0,
1090 extra_size/1024.0,
1091 100.0*(total_size - raw)/raw
1092 );
1093 }
1094 }
1095
1096 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1097 static int output_packet(AVInputStream *ist, int ist_index,
1098 AVOutputStream **ost_table, int nb_ostreams,
1099 const AVPacket *pkt)
1100 {
1101 AVFormatContext *os;
1102 AVOutputStream *ost;
1103 uint8_t *ptr;
1104 int len, ret, i;
1105 uint8_t *data_buf;
1106 int data_size, got_picture;
1107 AVFrame picture;
1108 void *buffer_to_free;
1109 static unsigned int samples_size= 0;
1110 static short *samples= NULL;
1111 AVSubtitle subtitle, *subtitle_to_free;
1112 int got_subtitle;
1113
1114 if(ist->next_pts == AV_NOPTS_VALUE)
1115 ist->next_pts= ist->pts;
1116
1117 if (pkt == NULL) {
1118 /* EOF handling */
1119 ptr = NULL;
1120 len = 0;
1121 goto handle_eof;
1122 }
1123
1124 if(pkt->dts != AV_NOPTS_VALUE)
1125 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1126
1127 len = pkt->size;
1128 ptr = pkt->data;
1129 while (len > 0) {
1130 handle_eof:
1131 ist->pts= ist->next_pts;
1132
1133 if(len && len != pkt->size && verbose>0)
1134 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1135
1136 /* decode the packet if needed */
1137 data_buf = NULL; /* fail safe */
1138 data_size = 0;
1139 subtitle_to_free = NULL;
1140 if (ist->decoding_needed) {
1141 switch(ist->st->codec->codec_type) {
1142 case CODEC_TYPE_AUDIO:{
1143 if(pkt)
1144 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE));
1145 data_size= samples_size;
1146 /* XXX: could avoid copy if PCM 16 bits with same
1147 endianness as CPU */
1148 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1149 ptr, len);
1150 if (ret < 0)
1151 goto fail_decode;
1152 ptr += ret;
1153 len -= ret;
1154 /* Some bug in mpeg audio decoder gives */
1155 /* data_size < 0, it seems they are overflows */
1156 if (data_size <= 0) {
1157 /* no audio frame */
1158 continue;
1159 }
1160 data_buf = (uint8_t *)samples;
1161 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1162 (ist->st->codec->sample_rate * ist->st->codec->channels);
1163 break;}
1164 case CODEC_TYPE_VIDEO:
1165 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1166 /* XXX: allocate picture correctly */
1167 avcodec_get_frame_defaults(&picture);
1168
1169 ret = avcodec_decode_video(ist->st->codec,
1170 &picture, &got_picture, ptr, len);
1171 ist->st->quality= picture.quality;
1172 if (ret < 0)
1173 goto fail_decode;
1174 if (!got_picture) {
1175 /* no picture yet */
1176 goto discard_packet;
1177 }
1178 if (ist->st->codec->time_base.num != 0) {
1179 ist->next_pts += ((int64_t)AV_TIME_BASE *
1180 ist->st->codec->time_base.num) /
1181 ist->st->codec->time_base.den;
1182 }
1183 len = 0;
1184 break;
1185 case CODEC_TYPE_SUBTITLE:
1186 ret = avcodec_decode_subtitle(ist->st->codec,
1187 &subtitle, &got_subtitle, ptr, len);
1188 if (ret < 0)
1189 goto fail_decode;
1190 if (!got_subtitle) {
1191 goto discard_packet;
1192 }
1193 subtitle_to_free = &subtitle;
1194 len = 0;
1195 break;
1196 default:
1197 goto fail_decode;
1198 }
1199 } else {
1200 switch(ist->st->codec->codec_type) {
1201 case CODEC_TYPE_AUDIO:
1202 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1203 ist->st->codec->sample_rate;
1204 break;
1205 case CODEC_TYPE_VIDEO:
1206 if (ist->st->codec->time_base.num != 0) {
1207 ist->next_pts += ((int64_t)AV_TIME_BASE *
1208 ist->st->codec->time_base.num) /
1209 ist->st->codec->time_base.den;
1210 }
1211 break;
1212 }
1213 data_buf = ptr;
1214 data_size = len;
1215 ret = len;
1216 len = 0;
1217 }
1218
1219 buffer_to_free = NULL;
1220 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1221 pre_process_video_frame(ist, (AVPicture *)&picture,
1222 &buffer_to_free);
1223 }
1224
1225 // preprocess audio (volume)
1226 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1227 if (audio_volume != 256) {
1228 short *volp;
1229 volp = samples;
1230 for(i=0;i<(data_size / sizeof(short));i++) {
1231 int v = ((*volp) * audio_volume + 128) >> 8;
1232 if (v < -32768) v = -32768;
1233 if (v > 32767) v = 32767;
1234 *volp++ = v;
1235 }
1236 }
1237 }
1238
1239 /* frame rate emulation */
1240 if (ist->st->codec->rate_emu) {
1241 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1242 int64_t now = av_gettime() - ist->start;
1243 if (pts > now)
1244 usleep(pts - now);
1245
1246 ist->frame++;
1247 }
1248
1249 #if 0
1250 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1251 is the one of the next displayed one */
1252 /* XXX: add mpeg4 too ? */
1253 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1254 if (ist->st->codec->pict_type != B_TYPE) {
1255 int64_t tmp;
1256 tmp = ist->last_ip_pts;
1257 ist->last_ip_pts = ist->frac_pts.val;
1258 ist->frac_pts.val = tmp;
1259 }
1260 }
1261 #endif
1262 /* if output time reached then transcode raw format,
1263 encode packets and output them */
1264 if (start_time == 0 || ist->pts >= start_time)
1265 for(i=0;i<nb_ostreams;i++) {
1266 int frame_size;
1267
1268 ost = ost_table[i];
1269 if (ost->source_index == ist_index) {
1270 os = output_files[ost->file_index];
1271
1272 #if 0
1273 printf("%d: got pts=%0.3f %0.3f\n", i,
1274 (double)pkt->pts / AV_TIME_BASE,
1275 ((double)ist->pts / AV_TIME_BASE) -
1276 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1277 #endif
1278 /* set the input output pts pairs */
1279 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1280
1281 if (ost->encoding_needed) {
1282 switch(ost->st->codec->codec_type) {
1283 case CODEC_TYPE_AUDIO:
1284 do_audio_out(os, ost, ist, data_buf, data_size);
1285 break;
1286 case CODEC_TYPE_VIDEO:
1287 do_video_out(os, ost, ist, &picture, &frame_size);
1288 video_size += frame_size;
1289 if (vstats_filename && frame_size)
1290 do_video_stats(os, ost, frame_size);
1291 break;
1292 case CODEC_TYPE_SUBTITLE:
1293 do_subtitle_out(os, ost, ist, &subtitle,
1294 pkt->pts);
1295 break;
1296 default:
1297 abort();
1298 }
1299 } else {
1300 AVFrame avframe; //FIXME/XXX remove this
1301 AVPacket opkt;
1302 av_init_packet(&opkt);
1303
1304 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1305 continue;
1306
1307 /* no reencoding needed : output the packet directly */
1308 /* force the input stream PTS */
1309
1310 avcodec_get_frame_defaults(&avframe);
1311 ost->st->codec->coded_frame= &avframe;
1312 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1313
1314 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1315 audio_size += data_size;
1316 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1317 video_size += data_size;
1318 ost->sync_opts++;
1319 }
1320
1321 opkt.stream_index= ost->index;
1322 if(pkt->pts != AV_NOPTS_VALUE)
1323 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1324 else
1325 opkt.pts= AV_NOPTS_VALUE;
1326
1327 if (pkt->dts == AV_NOPTS_VALUE)
1328 opkt.dts = av_rescale_q(ist->next_pts, AV_TIME_BASE_Q, ost->st->time_base);
1329 else
1330 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1331
1332 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1333 opkt.flags= pkt->flags;
1334
1335 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1336 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1337 opkt.destruct= av_destruct_packet;
1338
1339 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1340 ost->st->codec->frame_number++;
1341 ost->frame_number++;
1342 av_free_packet(&opkt);
1343 }
1344 }
1345 }
1346 av_free(buffer_to_free);
1347 /* XXX: allocate the subtitles in the codec ? */
1348 if (subtitle_to_free) {
1349 if (subtitle_to_free->rects != NULL) {
1350 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1351 av_free(subtitle_to_free->rects[i].bitmap);
1352 av_free(subtitle_to_free->rects[i].rgba_palette);
1353 }
1354 av_freep(&subtitle_to_free->rects);
1355 }
1356 subtitle_to_free->num_rects = 0;
1357 subtitle_to_free = NULL;
1358 }
1359 }
1360 discard_packet:
1361 if (pkt == NULL) {
1362 /* EOF handling */
1363
1364 for(i=0;i<nb_ostreams;i++) {
1365 ost = ost_table[i];
1366 if (ost->source_index == ist_index) {
1367 AVCodecContext *enc= ost->st->codec;
1368 os = output_files[ost->file_index];
1369
1370 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1371 continue;
1372 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1373 continue;
1374
1375 if (ost->encoding_needed) {
1376 for(;;) {
1377 AVPacket pkt;
1378 int fifo_bytes;
1379 av_init_packet(&pkt);
1380 pkt.stream_index= ost->index;
1381
1382 switch(ost->st->codec->codec_type) {
1383 case CODEC_TYPE_AUDIO:
1384 fifo_bytes = av_fifo_size(&ost->fifo);
1385 ret = 0;
1386 /* encode any samples remaining in fifo */
1387 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1388 int fs_tmp = enc->frame_size;
1389 enc->frame_size = fifo_bytes / (2 * enc->channels);
1390 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1391 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1392 enc->frame_size = fs_tmp;
1393 }
1394 if(ret <= 0) {
1395 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1396 }
1397 audio_size += ret;
1398 pkt.flags |= PKT_FLAG_KEY;
1399 break;
1400 case CODEC_TYPE_VIDEO:
1401 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1402 video_size += ret;
1403 if(enc->coded_frame && enc->coded_frame->key_frame)
1404 pkt.flags |= PKT_FLAG_KEY;
1405 if (ost->logfile && enc->stats_out) {
1406 fprintf(ost->logfile, "%s", enc->stats_out);
1407 }
1408 break;
1409 default:
1410 ret=-1;
1411 }
1412
1413 if(ret<=0)
1414 break;
1415 pkt.data= bit_buffer;
1416 pkt.size= ret;
1417 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1418 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1419 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1420 }
1421 }
1422 }
1423 }
1424 }
1425
1426 return 0;
1427 fail_decode:
1428 return -1;
1429 }
1430
1431 static void print_sdp(AVFormatContext **avc, int n)
1432 {
1433 char sdp[2048];
1434
1435 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1436 printf("SDP:\n%s\n", sdp);
1437 }
1438
1439 static int stream_index_from_inputs(AVFormatContext **input_files,
1440 int nb_input_files,
1441 AVInputFile *file_table,
1442 AVInputStream **ist_table,
1443 enum CodecType type,
1444 int programid)
1445 {
1446 int p, q, z;
1447 for(z=0; z<nb_input_files; z++) {
1448 AVFormatContext *ic = input_files[z];
1449 for(p=0; p<ic->nb_programs; p++) {
1450 AVProgram *program = ic->programs[p];
1451 if(program->id != programid)
1452 continue;
1453 for(q=0; q<program->nb_stream_indexes; q++) {
1454 int sidx = program->stream_index[q];
1455 int ris = file_table[z].ist_index + sidx;
1456 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1457 return ris;
1458 }
1459 }
1460 }
1461
1462 return -1;
1463 }
1464
1465 /*
1466 * The following code is the main loop of the file converter
1467 */
1468 static int av_encode(AVFormatContext **output_files,
1469 int nb_output_files,
1470 AVFormatContext **input_files,
1471 int nb_input_files,
1472 AVStreamMap *stream_maps, int nb_stream_maps)
1473 {
1474 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1475 AVFormatContext *is, *os;
1476 AVCodecContext *codec, *icodec;
1477 AVOutputStream *ost, **ost_table = NULL;
1478 AVInputStream *ist, **ist_table = NULL;
1479 AVInputFile *file_table;
1480 int key;
1481 int want_sdp = 1;
1482
1483 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1484 if (!file_table)
1485 goto fail;
1486
1487 /* input stream init */
1488 j = 0;
1489 for(i=0;i<nb_input_files;i++) {
1490 is = input_files[i];
1491 file_table[i].ist_index = j;
1492 file_table[i].nb_streams = is->nb_streams;
1493 j += is->nb_streams;
1494 }
1495 nb_istreams = j;
1496
1497 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1498 if (!ist_table)
1499 goto fail;
1500
1501 for(i=0;i<nb_istreams;i++) {
1502 ist = av_mallocz(sizeof(AVInputStream));
1503 if (!ist)
1504 goto fail;
1505 ist_table[i] = ist;
1506 }
1507 j = 0;
1508 for(i=0;i<nb_input_files;i++) {
1509 is = input_files[i];
1510 for(k=0;k<is->nb_streams;k++) {
1511 ist = ist_table[j++];
1512 ist->st = is->streams[k];
1513 ist->file_index = i;
1514 ist->index = k;
1515 ist->discard = 1; /* the stream is discarded by default
1516 (changed later) */
1517
1518 if (ist->st->codec->rate_emu) {
1519 ist->start = av_gettime();
1520 ist->frame = 0;
1521 }
1522 }
1523 }
1524
1525 /* output stream init */
1526 nb_ostreams = 0;
1527 for(i=0;i<nb_output_files;i++) {
1528 os = output_files[i];
1529 if (!os->nb_streams) {
1530 fprintf(stderr, "Output file does not contain any stream\n");
1531 av_exit(1);
1532 }
1533 nb_ostreams += os->nb_streams;
1534 }
1535 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1536 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1537 av_exit(1);
1538 }
1539
1540 /* Sanity check the mapping args -- do the input files & streams exist? */
1541 for(i=0;i<nb_stream_maps;i++) {
1542 int fi = stream_maps[i].file_index;
1543 int si = stream_maps[i].stream_index;
1544
1545 if (fi < 0 || fi > nb_input_files - 1 ||
1546 si < 0 || si > file_table[fi].nb_streams - 1) {
1547 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1548 av_exit(1);
1549 }
1550 fi = stream_maps[i].sync_file_index;
1551 si = stream_maps[i].sync_stream_index;
1552 if (fi < 0 || fi > nb_input_files - 1 ||
1553 si < 0 || si > file_table[fi].nb_streams - 1) {
1554 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1555 av_exit(1);
1556 }
1557 }
1558
1559 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1560 if (!ost_table)
1561 goto fail;
1562 for(i=0;i<nb_ostreams;i++) {
1563 ost = av_mallocz(sizeof(AVOutputStream));
1564 if (!ost)
1565 goto fail;
1566 ost_table[i] = ost;
1567 }
1568
1569 n = 0;
1570 for(k=0;k<nb_output_files;k++) {
1571 os = output_files[k];
1572 for(i=0;i<os->nb_streams;i++) {
1573 int found;
1574 ost = ost_table[n++];
1575 ost->file_index = k;
1576 ost->index = i;
1577 ost->st = os->streams[i];
1578 if (nb_stream_maps > 0) {
1579 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1580 stream_maps[n-1].stream_index;
1581
1582 /* Sanity check that the stream types match */
1583 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1584 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1585 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1586 ost->file_index, ost->index);
1587 av_exit(1);
1588 }
1589
1590 } else {
1591 if(opt_programid) {
1592 found = 0;
1593 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1594 if(j != -1) {
1595 ost->source_index = j;
1596 found = 1;
1597 }
1598 } else {
1599 /* get corresponding input stream index : we select the first one with the right type */
1600 found = 0;
1601 for(j=0;j<nb_istreams;j++) {
1602 ist = ist_table[j];
1603 if (ist->discard &&
1604 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1605 ost->source_index = j;
1606 found = 1;
1607 break;
1608 }
1609 }
1610 }
1611
1612 if (!found) {
1613 if(! opt_programid) {
1614 /* try again and reuse existing stream */
1615 for(j=0;j<nb_istreams;j++) {
1616 ist = ist_table[j];
1617 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1618 ost->source_index = j;
1619 found = 1;
1620 }
1621 }
1622 }
1623 if (!found) {
1624 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1625 ost->file_index, ost->index);
1626 av_exit(1);
1627 }
1628 }
1629 }
1630 ist = ist_table[ost->source_index];
1631 ist->discard = 0;
1632 ost->sync_ist = (nb_stream_maps > 0) ?
1633 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1634 stream_maps[n-1].sync_stream_index] : ist;
1635 }
1636 }
1637
1638 /* for each output stream, we compute the right encoding parameters */
1639 for(i=0;i<nb_ostreams;i++) {
1640 ost = ost_table[i];
1641 os = output_files[ost->file_index];
1642 ist = ist_table[ost->source_index];
1643
1644 codec = ost->st->codec;
1645 icodec = ist->st->codec;
1646
1647 if (!ost->st->language[0])
1648 av_strlcpy(ost->st->language, ist->st->language,
1649 sizeof(ost->st->language));
1650
1651 ost->st->disposition = ist->st->disposition;
1652
1653 if (ost->st->stream_copy) {
1654 /* if stream_copy is selected, no need to decode or encode */
1655 codec->codec_id = icodec->codec_id;
1656 codec->codec_type = icodec->codec_type;
1657
1658 if(!codec->codec_tag){
1659 if( !os->oformat->codec_tag
1660 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1661 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1662 codec->codec_tag = icodec->codec_tag;
1663 }
1664
1665 codec->bit_rate = icodec->bit_rate;
1666 codec->extradata= icodec->extradata;
1667 codec->extradata_size= icodec->extradata_size;
1668 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1669 codec->time_base = icodec->time_base;
1670 else
1671 codec->time_base = ist->st->time_base;
1672 switch(codec->codec_type) {
1673 case CODEC_TYPE_AUDIO:
1674 codec->sample_rate = icodec->sample_rate;
1675 codec->channels = icodec->channels;
1676 codec->frame_size = icodec->frame_size;
1677 codec->block_align= icodec->block_align;
1678 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1679 codec->block_align= 0;
1680 break;
1681 case CODEC_TYPE_VIDEO:
1682 if(using_vhook) {
1683 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1684 av_exit(1);
1685 }
1686 codec->pix_fmt = icodec->pix_fmt;
1687 codec->width = icodec->width;
1688 codec->height = icodec->height;
1689 codec->has_b_frames = icodec->has_b_frames;
1690 break;
1691 case CODEC_TYPE_SUBTITLE:
1692 break;
1693 default:
1694 abort();
1695 }
1696 } else {
1697 switch(codec->codec_type) {
1698 case CODEC_TYPE_AUDIO:
1699 if (av_fifo_init(&ost->fifo, 1024))
1700 goto fail;
1701 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1702 icodec->request_channels = codec->channels;
1703 ist->decoding_needed = 1;
1704 ost->encoding_needed = 1;
1705 break;
1706 case CODEC_TYPE_VIDEO:
1707 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1708 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1709 ost->video_resample = ((codec->width != icodec->width -
1710 (frame_leftBand + frame_rightBand) +
1711 (frame_padleft + frame_padright)) ||
1712 (codec->height != icodec->height -
1713 (frame_topBand + frame_bottomBand) +
1714 (frame_padtop + frame_padbottom)) ||
1715 (codec->pix_fmt != icodec->pix_fmt));
1716 if (ost->video_crop) {
1717 ost->topBand = frame_topBand;
1718 ost->leftBand = frame_leftBand;
1719 }
1720 if (ost->video_pad) {
1721 ost->padtop = frame_padtop;
1722 ost->padleft = frame_padleft;
1723 ost->padbottom = frame_padbottom;
1724 ost->padright = frame_padright;
1725 if (!ost->video_resample) {
1726 avcodec_get_frame_defaults(&ost->pict_tmp);
1727 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1728 codec->width, codec->height ) )
1729 goto fail;
1730 }
1731 }
1732 if (ost->video_resample) {
1733 avcodec_get_frame_defaults(&ost->pict_tmp);
1734 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1735 codec->width, codec->height ) ) {
1736 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1737 av_exit(1);
1738 }
1739 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1740 ost->img_resample_ctx = sws_getContext(
1741 icodec->width - (frame_leftBand + frame_rightBand),
1742 icodec->height - (frame_topBand + frame_bottomBand),
1743 icodec->pix_fmt,
1744 codec->width - (frame_padleft + frame_padright),
1745 codec->height - (frame_padtop + frame_padbottom),
1746 codec->pix_fmt,
1747 sws_flags, NULL, NULL, NULL);
1748 if (ost->img_resample_ctx == NULL) {
1749 fprintf(stderr, "Cannot get resampling context\n");
1750 av_exit(1);
1751 }
1752 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1753 }
1754 ost->encoding_needed = 1;
1755 ist->decoding_needed = 1;
1756 break;
1757 case CODEC_TYPE_SUBTITLE:
1758 ost->encoding_needed = 1;
1759 ist->decoding_needed = 1;
1760 break;
1761 default:
1762 abort();
1763 break;
1764 }
1765 /* two pass mode */
1766 if (ost->encoding_needed &&
1767 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1768 char logfilename[1024];
1769 FILE *f;
1770 int size;
1771 char *logbuffer;
1772
1773 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1774 pass_logfilename ?
1775 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1776 if (codec->flags & CODEC_FLAG_PASS1) {
1777 f = fopen(logfilename, "w");
1778 if (!f) {
1779 perror(logfilename);
1780 av_exit(1);
1781 }
1782 ost->logfile = f;
1783 } else {
1784 /* read the log file */
1785 f = fopen(logfilename, "r");
1786 if (!f) {
1787 perror(logfilename);
1788 av_exit(1);
1789 }
1790 fseek(f, 0, SEEK_END);
1791 size = ftell(f);
1792 fseek(f, 0, SEEK_SET);
1793 logbuffer = av_malloc(size + 1);
1794 if (!logbuffer) {
1795 fprintf(stderr, "Could not allocate log buffer\n");
1796 av_exit(1);
1797 }
1798 size = fread(logbuffer, 1, size, f);
1799 fclose(f);
1800 logbuffer[size] = '\0';
1801 codec->stats_in = logbuffer;
1802 }
1803 }
1804 }
1805 if(codec->codec_type == CODEC_TYPE_VIDEO){
1806 int size= codec->width * codec->height;
1807 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1808 }
1809 }
1810
1811 if (!bit_buffer)
1812 bit_buffer = av_malloc(bit_buffer_size);
1813 if (!bit_buffer)
1814 goto fail;
1815
1816 /* dump the file output parameters - cannot be done before in case
1817 of stream copy */
1818 for(i=0;i<nb_output_files;i++) {
1819 dump_format(output_files[i], i, output_files[i]->filename, 1);
1820 }
1821
1822 /* dump the stream mapping */
1823 if (verbose >= 0) {
1824 fprintf(stderr, "Stream mapping:\n");
1825 for(i=0;i<nb_ostreams;i++) {
1826 ost = ost_table[i];
1827 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1828 ist_table[ost->source_index]->file_index,
1829 ist_table[ost->source_index]->index,
1830 ost->file_index,
1831 ost->index);
1832 if (ost->sync_ist != ist_table[ost->source_index])
1833 fprintf(stderr, " [sync #%d.%d]",
1834 ost->sync_ist->file_index,
1835 ost->sync_ist->index);
1836 fprintf(stderr, "\n");
1837 }
1838 }
1839
1840 /* open each encoder */
1841 for(i=0;i<nb_ostreams;i++) {
1842 ost = ost_table[i];
1843 if (ost->encoding_needed) {
1844 AVCodec *codec;
1845 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1846 if (!codec) {
1847 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1848 ost->file_index, ost->index);
1849 av_exit(1);
1850 }
1851 if (avcodec_open(ost->st->codec, codec) < 0) {
1852 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1853 ost->file_index, ost->index);
1854 av_exit(1);
1855 }
1856 extra_size += ost->st->codec->extradata_size;
1857 }
1858 }
1859
1860 /* open each decoder */
1861 for(i=0;i<nb_istreams;i++) {
1862 ist = ist_table[i];
1863 if (ist->decoding_needed) {
1864 AVCodec *codec;
1865 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1866 if (!codec) {
1867 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1868 ist->st->codec->codec_id, ist->file_index, ist->index);
1869 av_exit(1);
1870 }
1871 if (avcodec_open(ist->st->codec, codec) < 0) {
1872 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1873 ist->file_index, ist->index);
1874 av_exit(1);
1875 }
1876 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1877 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1878 }
1879 }
1880
1881 /* init pts */
1882 for(i=0;i<nb_istreams;i++) {
1883 ist = ist_table[i];
1884 is = input_files[ist->file_index];
1885 ist->pts = 0;
1886 ist->next_pts = AV_NOPTS_VALUE;
1887 ist->is_start = 1;
1888 }
1889
1890 /* set meta data information from input file if required */
1891 for (i=0;i<nb_meta_data_maps;i++) {
1892 AVFormatContext *out_file;
1893 AVFormatContext *in_file;
1894
1895 int out_file_index = meta_data_maps[i].out_file;
1896 int in_file_index = meta_data_maps[i].in_file;
1897 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1898 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1899 ret = AVERROR(EINVAL);
1900 goto fail;
1901 }
1902 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1903 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1904 ret = AVERROR(EINVAL);
1905 goto fail;
1906 }
1907
1908 out_file = output_files[out_file_index];
1909 in_file = input_files[in_file_index];
1910
1911 strcpy(out_file->title, in_file->title);
1912 strcpy(out_file->author, in_file->author);
1913 strcpy(out_file->copyright, in_file->copyright);
1914 strcpy(out_file->comment, in_file->comment);
1915 strcpy(out_file->album, in_file->album);
1916 out_file->year = in_file->year;
1917 out_file->track = in_file->track;
1918 strcpy(out_file->genre, in_file->genre);
1919 }
1920
1921 /* open files and write file headers */
1922 for(i=0;i<nb_output_files;i++) {
1923 os = output_files[i];
1924 if (av_write_header(os) < 0) {
1925 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1926 ret = AVERROR(EINVAL);
1927 goto fail;
1928 }
1929 if (strcmp(output_files[i]->oformat->name, "rtp")) {
1930 want_sdp = 0;
1931 }
1932 }
1933 if (want_sdp) {
1934 print_sdp(output_files, nb_output_files);
1935 }
1936
1937 if ( !using_stdin && verbose >= 0) {
1938 fprintf(stderr, "Press [q] to stop encoding\n");
1939 url_set_interrupt_cb(decode_interrupt_cb);
1940 }
1941 term_init();
1942
1943 key = -1;
1944 timer_start = av_gettime();
1945
1946 for(; received_sigterm == 0;) {
1947 int file_index, ist_index;
1948 AVPacket pkt;
1949 double ipts_min;
1950 double opts_min;
1951
1952 redo:
1953 ipts_min= 1e100;
1954 opts_min= 1e100;
1955 /* if 'q' pressed, exits */
1956 if (!using_stdin) {
1957 if (q_pressed)
1958 break;
1959 /* read_key() returns 0 on EOF */
1960 key = read_key();
1961 if (key == 'q')
1962 break;
1963 }
1964
1965 /* select the stream that we must read now by looking at the
1966 smallest output pts */
1967 file_index = -1;
1968 for(i=0;i<nb_ostreams;i++) {
1969 double ipts, opts;
1970 ost = ost_table[i];
1971 os = output_files[ost->file_index];
1972 ist = ist_table[ost->source_index];
1973 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1974 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
1975 else
1976 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
1977 ipts = (double)ist->pts;
1978 if (!file_table[ist->file_index].eof_reached){
1979 if(ipts < ipts_min) {
1980 ipts_min = ipts;
1981 if(input_sync ) file_index = ist->file_index;
1982 }
1983 if(opts < opts_min) {
1984 opts_min = opts;
1985 if(!input_sync) file_index = ist->file_index;
1986 }
1987 }
1988 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
1989 file_index= -1;
1990 break;
1991 }
1992 }
1993 /* if none, if is finished */
1994 if (file_index < 0) {
1995 break;
1996 }
1997
1998 /* finish if recording time exhausted */
1999 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
2000 break;
2001
2002 /* finish if limit size exhausted */
2003 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2004 break;
2005
2006 /* read a frame from it and output it in the fifo */
2007 is = input_files[file_index];
2008 if (av_read_frame(is, &pkt) < 0) {
2009 file_table[file_index].eof_reached = 1;
2010 if (opt_shortest)
2011 break;
2012 else
2013 continue;
2014 }
2015
2016 if (do_pkt_dump) {
2017 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2018 }
2019 /* the following test is needed in case new streams appear
2020 dynamically in stream : we ignore them */
2021 if (pkt.stream_index >= file_table[file_index].nb_streams)
2022 goto discard_packet;
2023 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2024 ist = ist_table[ist_index];
2025 if (ist->discard)
2026 goto discard_packet;
2027
2028 if (pkt.dts != AV_NOPTS_VALUE)
2029 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2030 if (pkt.pts != AV_NOPTS_VALUE)
2031 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2032
2033 // 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);
2034 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
2035 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2036 int64_t delta= pkt_dts - ist->next_pts;
2037 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2038 input_files_ts_offset[ist->file_index]-= delta;
2039 if (verbose > 2)
2040 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2041 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2042 if(pkt.pts != AV_NOPTS_VALUE)
2043 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2044 }
2045 }
2046
2047 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2048 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2049
2050 if (verbose >= 0)
2051 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2052 ist->file_index, ist->index);
2053
2054 av_free_packet(&pkt);
2055 goto redo;
2056 }
2057
2058 discard_packet:
2059 av_free_packet(&pkt);
2060
2061 /* dump report by using the output first video and audio streams */
2062 print_report(output_files, ost_table, nb_ostreams, 0);
2063 }
2064
2065 /* at the end of stream, we must flush the decoder buffers */
2066 for(i=0;i<nb_istreams;i++) {
2067 ist = ist_table[i];
2068 if (ist->decoding_needed) {
2069 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2070 }
2071 }
2072
2073 term_exit();
2074
2075 /* write the trailer if needed and close file */
2076 for(i=0;i<nb_output_files;i++) {
2077 os = output_files[i];
2078 av_write_trailer(os);
2079 }
2080
2081 /* dump report by using the first video and audio streams */
2082 print_report(output_files, ost_table, nb_ostreams, 1);
2083
2084 /* close each encoder */
2085 for(i=0;i<nb_ostreams;i++) {
2086 ost = ost_table[i];
2087 if (ost->encoding_needed) {
2088 av_freep(&ost->st->codec->stats_in);
2089 avcodec_close(ost->st->codec);
2090 }
2091 }
2092
2093 /* close each decoder */
2094 for(i=0;i<nb_istreams;i++) {
2095 ist = ist_table[i];
2096 if (ist->decoding_needed) {
2097 avcodec_close(ist->st->codec);
2098 }
2099 }
2100
2101 /* finished ! */
2102
2103 ret = 0;
2104 fail1:
2105 av_freep(&bit_buffer);
2106 av_free(file_table);
2107
2108 if (ist_table) {
2109 for(i=0;i<nb_istreams;i++) {
2110 ist = ist_table[i];
2111 av_free(ist);
2112 }
2113 av_free(ist_table);
2114 }
2115 if (ost_table) {
2116 for(i=0;i<nb_ostreams;i++) {
2117 ost = ost_table[i];
2118 if (ost) {
2119 if (ost->logfile) {
2120 fclose(ost->logfile);
2121 ost->logfile = NULL;
2122 }
2123 av_fifo_free(&ost->fifo); /* works even if fifo is not
2124 initialized but set to zero */
2125 av_free(ost->pict_tmp.data[0]);
2126 if (ost->video_resample)
2127 sws_freeContext(ost->img_resample_ctx);
2128 if (ost->resample)
2129 audio_resample_close(ost->resample);
2130 av_free(ost);
2131 }
2132 }
2133 av_free(ost_table);
2134 }
2135 return ret;
2136 fail:
2137 ret = AVERROR(ENOMEM);
2138 goto fail1;
2139 }
2140
2141 #if 0
2142 int file_read(const char *filename)
2143 {
2144 URLContext *h;
2145 unsigned char buffer[1024];
2146 int len, i;
2147
2148 if (url_open(&h, filename, O_RDONLY) < 0) {
2149 printf("could not open '%s'\n", filename);
2150 return -1;
2151 }
2152 for(;;) {
2153 len = url_read(h, buffer, sizeof(buffer));
2154 if (len <= 0)
2155 break;
2156 for(i=0;i<len;i++) putchar(buffer[i]);
2157 }
2158 url_close(h);
2159 return 0;
2160 }
2161 #endif
2162
2163 static void opt_format(const char *arg)
2164 {
2165 /* compatibility stuff for pgmyuv */
2166 if (!strcmp(arg, "pgmyuv")) {
2167 pgmyuv_compatibility_hack=1;
2168 // opt_image_format(arg);
2169 arg = "image2";
2170 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2171 }
2172
2173 file_iformat = av_find_input_format(arg);
2174 file_oformat = guess_format(arg, NULL, NULL);
2175 if (!file_iformat && !file_oformat) {
2176 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2177 av_exit(1);
2178 }
2179 }
2180
2181 extern int ffm_nopts;
2182
2183 static int opt_default(const char *opt, const char *arg){
2184 int type;
2185 const AVOption *o= NULL;
2186 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
2187
2188 for(type=0; type<CODEC_TYPE_NB; type++){
2189 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
2190 if(o2)
2191 o = av_set_string(avctx_opts[type], opt, arg);
2192 }
2193 if(!o)
2194 o = av_set_string(avformat_opts, opt, arg);
2195 if(!o)
2196 o = av_set_string(sws_opts, opt, arg);
2197 if(!o){
2198 if(opt[0] == 'a')
2199 o = av_set_string(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg);
2200 else if(opt[0] == 'v')
2201 o = av_set_string(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg);
2202 else if(opt[0] == 's')
2203 o = av_set_string(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg);
2204 }
2205 if(!o)
2206 return -1;
2207
2208 // 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));
2209
2210 //FIXME we should always use avctx_opts, ... for storing options so there wont be any need to keep track of whats set over this
2211 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
2212 opt_names[opt_name_count++]= o->name;
2213
2214 #if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
2215 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2216 if(avctx_opts[0]->flags & CODEC_FLAG_BITEXACT)
2217 ffm_nopts = 1;
2218 #endif
2219
2220 if(avctx_opts[0]->debug)
2221 av_log_set_level(AV_LOG_DEBUG);
2222 return 0;
2223 }
2224
2225 static void opt_video_rc_override_string(const char *arg)
2226 {
2227 video_rc_override_string = arg;
2228 }
2229
2230 static int opt_me_threshold(const char *opt, const char *arg)
2231 {
2232 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2233 return 0;
2234 }
2235
2236 static int opt_verbose(const char *opt, const char *arg)
2237 {
2238 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2239 av_log_set_level(verbose);
2240 return 0;
2241 }
2242
2243 static void opt_frame_rate(const char *arg)
2244 {
2245 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2246 fprintf(stderr, "Incorrect frame rate\n");
2247 av_exit(1);
2248 }
2249 }
2250
2251 static int opt_bitrate(const char *opt, const char *arg)
2252 {
2253 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2254
2255 opt_default(opt, arg);
2256
2257 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2258 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2259
2260 return 0;
2261 }
2262
2263 static void opt_frame_crop_top(const char *arg)
2264 {
2265 frame_topBand = atoi(arg);
2266 if (frame_topBand < 0) {
2267 fprintf(stderr, "Incorrect top crop size\n");
2268 av_exit(1);
2269 }
2270 if ((frame_topBand % 2) != 0) {
2271 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2272 av_exit(1);
2273 }
2274 if ((frame_topBand) >= frame_height){
2275 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2276 av_exit(1);
2277 }
2278 frame_height -= frame_topBand;
2279 }
2280
2281 static void opt_frame_crop_bottom(const char *arg)
2282 {
2283 frame_bottomBand = atoi(arg);
2284 if (frame_bottomBand < 0) {
2285 fprintf(stderr, "Incorrect bottom crop size\n");
2286 av_exit(1);
2287 }
2288 if ((frame_bottomBand % 2) != 0) {
2289 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2290 av_exit(1);
2291 }
2292 if ((frame_bottomBand) >= frame_height){
2293 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2294 av_exit(1);
2295 }
2296 frame_height -= frame_bottomBand;
2297 }
2298
2299 static void opt_frame_crop_left(const char *arg)
2300 {
2301 frame_leftBand = atoi(arg);
2302 if (frame_leftBand < 0) {
2303 fprintf(stderr, "Incorrect left crop size\n");
2304 av_exit(1);
2305 }
2306 if ((frame_leftBand % 2) != 0) {
2307 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2308 av_exit(1);
2309 }
2310 if ((frame_leftBand) >= frame_width){
2311 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2312 av_exit(1);
2313 }
2314 frame_width -= frame_leftBand;
2315 }
2316
2317 static void opt_frame_crop_right(const char *arg)
2318 {
2319 frame_rightBand = atoi(arg);
2320 if (frame_rightBand < 0) {
2321 fprintf(stderr, "Incorrect right crop size\n");
2322 av_exit(1);
2323 }
2324 if ((frame_rightBand % 2) != 0) {
2325 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2326 av_exit(1);
2327 }
2328 if ((frame_rightBand) >= frame_width){
2329 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2330 av_exit(1);
2331 }
2332 frame_width -= frame_rightBand;
2333 }
2334
2335 static void opt_frame_size(const char *arg)
2336 {
2337 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2338 fprintf(stderr, "Incorrect frame size\n");
2339 av_exit(1);
2340 }
2341 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2342 fprintf(stderr, "Frame size must be a multiple of 2\n");
2343 av_exit(1);
2344 }
2345 }
2346
2347
2348 #define SCALEBITS 10
2349 #define ONE_HALF (1 << (SCALEBITS - 1))
2350 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2351
2352 #define RGB_TO_Y(r, g, b) \
2353 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2354 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2355
2356 #define RGB_TO_U(r1, g1, b1, shift)\
2357 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2358 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2359
2360 #define RGB_TO_V(r1, g1, b1, shift)\
2361 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2362 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2363
2364 static void opt_pad_color(const char *arg) {
2365 /* Input is expected to be six hex digits similar to
2366 how colors are expressed in html tags (but without the #) */
2367 int rgb = strtol(arg, NULL, 16);
2368 int r,g,b;
2369
2370 r = (rgb >> 16);
2371 g = ((rgb >> 8) & 255);
2372 b = (rgb & 255);
2373
2374 padcolor[0] = RGB_TO_Y(r,g,b);
2375 padcolor[1] = RGB_TO_U(r,g,b,0);
2376 padcolor[2] = RGB_TO_V(r,g,b,0);
2377 }
2378
2379 static void opt_frame_pad_top(const char *arg)
2380 {
2381 frame_padtop = atoi(arg);
2382 if (frame_padtop < 0) {
2383 fprintf(stderr, "Incorrect top pad size\n");
2384 av_exit(1);
2385 }
2386 if ((frame_padtop % 2) != 0) {
2387 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2388 av_exit(1);
2389 }
2390 }
2391
2392 static void opt_frame_pad_bottom(const char *arg)
2393 {
2394 frame_padbottom = atoi(arg);
2395 if (frame_padbottom < 0) {
2396 fprintf(stderr, "Incorrect bottom pad size\n");
2397 av_exit(1);
2398 }
2399 if ((frame_padbottom % 2) != 0) {
2400 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2401 av_exit(1);
2402 }
2403 }
2404
2405
2406 static void opt_frame_pad_left(const char *arg)
2407 {
2408 frame_padleft = atoi(arg);
2409 if (frame_padleft < 0) {
2410 fprintf(stderr, "Incorrect left pad size\n");
2411 av_exit(1);
2412 }
2413 if ((frame_padleft % 2) != 0) {
2414 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2415 av_exit(1);
2416 }
2417 }
2418
2419
2420 static void opt_frame_pad_right(const char *arg)
2421 {
2422 frame_padright = atoi(arg);
2423 if (frame_padright < 0) {
2424 fprintf(stderr, "Incorrect right pad size\n");
2425 av_exit(1);
2426 }
2427 if ((frame_padright % 2) != 0) {
2428 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2429 av_exit(1);
2430 }
2431 }
2432
2433 static void list_pix_fmts(void)
2434 {
2435 int i;
2436 char pix_fmt_str[128];
2437 for (i=-1; i < PIX_FMT_NB; i++) {
2438 avcodec_pix_fmt_string (pix_fmt_str, sizeof(pix_fmt_str), i);
2439 fprintf(stdout, "%s\n", pix_fmt_str);
2440 }
2441 }
2442
2443 static void opt_frame_pix_fmt(const char *arg)
2444 {
2445 if (strcmp(arg, "list"))
2446 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2447 else {
2448 list_pix_fmts();
2449 av_exit(0);
2450 }
2451 }
2452
2453 static void opt_frame_aspect_ratio(const char *arg)
2454 {
2455 int x = 0, y = 0;
2456 double ar = 0;
2457 const char *p;
2458 char *end;
2459
2460 p = strchr(arg, ':');
2461 if (p) {
2462 x = strtol(arg, &end, 10);
2463 if (end == p)
2464 y = strtol(end+1, &end, 10);
2465 if (x > 0 && y > 0)
2466 ar = (double)x / (double)y;
2467 } else
2468 ar = strtod(arg, NULL);
2469
2470 if (!ar) {
2471 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2472 av_exit(1);
2473 }
2474 frame_aspect_ratio = ar;
2475 }
2476
2477 static void opt_qscale(const char *arg)
2478 {
2479 video_qscale = atof(arg);
2480 if (video_qscale <= 0 ||
2481 video_qscale > 255) {
2482 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2483 av_exit(1);
2484 }
2485 }
2486
2487 static void opt_qdiff(const char *arg)
2488 {
2489 video_qdiff = atoi(arg);
2490 if (video_qdiff < 0 ||
2491 video_qdiff > 31) {
2492 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2493 av_exit(1);
2494 }
2495 }
2496
2497 static void opt_strict(const char *arg)
2498 {
2499 strict= atoi(arg);
2500 }
2501
2502 static void opt_top_field_first(const char *arg)
2503 {
2504 top_field_first= atoi(arg);
2505 }
2506
2507 static void opt_thread_count(const char *arg)
2508 {
2509 thread_count= atoi(arg);
2510 #if !defined(HAVE_THREADS)
2511 if (verbose >= 0)
2512 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2513 #endif
2514 }
2515
2516 static int opt_audio_rate(const char *opt, const char *arg)
2517 {
2518 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2519 return 0;
2520 }
2521
2522 static int opt_audio_channels(const char *opt, const char *arg)
2523 {
2524 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2525 return 0;
2526 }
2527
2528 static void opt_video_channel(const char *arg)
2529 {
2530 video_channel = strtol(arg, NULL, 0);
2531 }
2532
2533 static void opt_video_standard(const char *arg)
2534 {
2535 video_standard = av_strdup(arg);
2536 }
2537
2538 static void opt_codec(int *pstream_copy, char **pcodec_name,
2539 int codec_type, const char *arg)
2540 {
2541 av_freep(pcodec_name);
2542 if (!strcmp(arg, "copy")) {
2543 *pstream_copy = 1;
2544 } else {
2545 *pcodec_name = av_strdup(arg);
2546 }
2547 }
2548
2549 static void opt_audio_codec(const char *arg)
2550 {
2551 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2552 }
2553
2554 static void opt_audio_tag(const char *arg)
2555 {
2556 char *tail;
2557 audio_codec_tag= strtol(arg, &tail, 0);
2558
2559 if(!tail || *tail)
2560 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2561 }
2562
2563 static void opt_video_tag(const char *arg)
2564 {
2565 char *tail;
2566 video_codec_tag= strtol(arg, &tail, 0);
2567
2568 if(!tail || *tail)
2569 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2570 }
2571
2572 #ifdef CONFIG_VHOOK
2573 static void add_frame_hooker(const char *arg)
2574 {
2575 int argc = 0;
2576 char *argv[64];
2577 int i;
2578 char *args = av_strdup(arg);
2579
2580 using_vhook = 1;
2581
2582 argv[0] = strtok(args, " ");
2583 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2584 }
2585
2586 i = frame_hook_add(argc, argv);
2587
2588 if (i != 0) {
2589 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2590 av_exit(1);
2591 }
2592 }
2593 #endif
2594
2595 static void opt_video_codec(const char *arg)
2596 {
2597 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2598 }
2599
2600 static void opt_subtitle_codec(const char *arg)
2601 {
2602 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2603 }
2604
2605 static void opt_map(const char *arg)
2606 {
2607 AVStreamMap *m;
2608 char *p;
2609
2610 m = &stream_maps[nb_stream_maps++];
2611
2612 m->file_index = strtol(arg, &p, 0);
2613 if (*p)
2614 p++;
2615
2616 m->stream_index = strtol(p, &p, 0);
2617 if (*p) {
2618 p++;
2619 m->sync_file_index = strtol(p, &p, 0);
2620 if (*p)
2621 p++;
2622 m->sync_stream_index = strtol(p, &p, 0);
2623 } else {
2624 m->sync_file_index = m->file_index;
2625 m->sync_stream_index = m->stream_index;
2626 }
2627 }
2628
2629 static void opt_map_meta_data(const char *arg)
2630 {
2631 AVMetaDataMap *m;
2632 char *p;
2633
2634 m = &meta_data_maps[nb_meta_data_maps++];
2635
2636 m->out_file = strtol(arg, &p, 0);
2637 if (*p)
2638 p++;
2639
2640 m->in_file = strtol(p, &p, 0);
2641 }
2642
2643 static int opt_recording_time(const char *opt, const char *arg)
2644 {
2645 recording_time = parse_time_or_die(opt, arg, 1);
2646 return 0;
2647 }
2648
2649 static int opt_start_time(const char *opt, const char *arg)
2650 {
2651 start_time = parse_time_or_die(opt, arg, 1);
2652 return 0;
2653 }
2654
2655 static int opt_rec_timestamp(const char *opt, const char *arg)
2656 {
2657 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2658 return 0;
2659 }
2660
2661 static int opt_input_ts_offset(const char *opt, const char *arg)
2662 {
2663 input_ts_offset = parse_time_or_die(opt, arg, 1);
2664 return 0;
2665 }
2666
2667 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2668 {
2669 const char *codec_string = encoder ? "encoder" : "decoder";
2670 AVCodec *codec;
2671
2672 if(!name)
2673 return CODEC_ID_NONE;
2674 codec = encoder ?
2675 avcodec_find_encoder_by_name(name) :
2676 avcodec_find_decoder_by_name(name);
2677 if(!codec) {
2678 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2679 av_exit(1);
2680 }
2681 if(codec->type != type) {
2682 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2683 av_exit(1);
2684 }
2685 return codec->id;
2686 }
2687
2688 static void opt_input_file(const char *filename)
2689 {
2690 AVFormatContext *ic;
2691 AVFormatParameters params, *ap = &params;
2692 int err, i, ret, rfps, rfps_base;
2693 int64_t timestamp;
2694
2695 if (!strcmp(filename, "-"))
2696 filename = "pipe:";
2697
2698 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2699 !strcmp( filename, "/dev/stdin" );
2700
2701 /* get default parameters from command line */
2702 ic = av_alloc_format_context();
2703
2704 memset(ap, 0, sizeof(*ap));
2705 ap->prealloced_context = 1;
2706 ap->sample_rate = audio_sample_rate;
2707 ap->channels = audio_channels;
2708 ap->time_base.den = frame_rate.num;
2709 ap->time_base.num = frame_rate.den;
2710 ap->width = frame_width + frame_padleft + frame_padright;
2711 ap->height = frame_height + frame_padtop + frame_padbottom;
2712 ap->pix_fmt = frame_pix_fmt;
2713 ap->channel = video_channel;
2714 ap->standard = video_standard;
2715 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2716 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2717 if(pgmyuv_compatibility_hack)
2718 ap->video_codec_id= CODEC_ID_PGMYUV;
2719
2720 for(i=0; i<opt_name_count; i++){
2721 char buf[256];
2722 const AVOption *opt;
2723 const char *str= av_get_string(avformat_opts, opt_names[i], &opt, buf, sizeof(buf));
2724 if(str && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2725 av_set_string(ic, opt_names[i], str);
2726 }
2727
2728 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2729 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2730 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2731
2732 /* open the input file with generic libav function */
2733 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2734 if (err < 0) {
2735 print_error(filename, err);
2736 av_exit(1);
2737 }
2738 if(opt_programid) {
2739 int i;
2740 for(i=0; i<ic->nb_programs; i++)
2741 if(ic->programs[i]->id != opt_programid)
2742 ic->programs[i]->discard = AVDISCARD_ALL;
2743 }
2744
2745 ic->loop_input = loop_input;
2746
2747 /* If not enough info to get the stream parameters, we decode the
2748 first frames to get it. (used in mpeg case for example) */
2749 ret = av_find_stream_info(ic);
2750 if (ret < 0 && verbose >= 0) {
2751 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2752 av_exit(1);
2753 }
2754
2755 timestamp = start_time;
2756 /* add the stream start time */
2757 if (ic->start_time != AV_NOPTS_VALUE)
2758 timestamp += ic->start_time;
2759
2760 /* if seeking requested, we execute it */
2761 if (start_time != 0) {
2762 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2763 if (ret < 0) {
2764 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2765 filename, (double)timestamp / AV_TIME_BASE);
2766 }
2767 /* reset seek info */
2768 start_time = 0;
2769 }
2770
2771 /* update the current parameters so that they match the one of the input stream */
2772 for(i=0;i<ic->nb_streams;i++) {
2773 int j;
2774 AVCodecContext *enc = ic->streams[i]->codec;
2775 if(thread_count>1)
2776 avcodec_thread_init(enc, thread_count);
2777 enc->thread_count= thread_count;
2778 switch(enc->codec_type) {
2779 case CODEC_TYPE_AUDIO:
2780 for(j=0; j<opt_name_count; j++){
2781 char buf[256];
2782 const AVOption *opt;
2783 const char *str= av_get_string(avctx_opts[CODEC_TYPE_AUDIO], opt_names[j], &opt, buf, sizeof(buf));
2784 if(str && (opt->flags & AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2785 av_set_string(enc, opt_names[j], str);
2786 }
2787 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2788 audio_channels = enc->channels;
2789 audio_sample_rate = enc->sample_rate;
2790 if(audio_disable)
2791 ic->streams[i]->discard= AVDISCARD_ALL;
2792 break;
2793 case CODEC_TYPE_VIDEO:
2794 for(j=0; j<opt_name_count; j++){
2795 char buf[256];
2796 const AVOption *opt;
2797 const char *str= av_get_string(avctx_opts[CODEC_TYPE_VIDEO], opt_names[j], &opt, buf, sizeof(buf));
2798 if(str && (opt->flags & AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags & AV_OPT_FLAG_DECODING_PARAM))
2799 av_set_string(enc, opt_names[j], str);
2800 }
2801 frame_height = enc->height;
2802 frame_width = enc->width;
2803 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2804 frame_pix_fmt = enc->pix_fmt;
2805 rfps = ic->streams[i]->r_frame_rate.num;
2806 rfps_base = ic->streams[i]->r_frame_rate.den;
2807 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2808 if(me_threshold)
2809 enc->debug |= FF_DEBUG_MV;
2810
2811 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2812
2813 if (verbose >= 0)
2814 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2815 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2816
2817 (float)rfps / rfps_base, rfps, rfps_base);
2818 }
2819 /* update the current frame rate to match the stream frame rate */
2820 frame_rate.num = rfps;
2821 frame_rate.den = rfps_base;
2822
2823 enc->rate_emu = rate_emu;
2824 if(video_disable)
2825 ic->streams[i]->discard= AVDISCARD_ALL;
2826 else if(video_discard)
2827 ic->streams[i]->discard= video_discard;
2828 break;
2829 case CODEC_TYPE_DATA:
2830 break;
2831 case CODEC_TYPE_SUBTITLE:
2832 if(subtitle_disable)
2833 ic->streams[i]->discard = AVDISCARD_ALL;
2834 break;
2835 case CODEC_TYPE_ATTACHMENT:
2836 case CODEC_TYPE_UNKNOWN:
2837 break;
2838 default:
2839 abort();
2840 }
2841 }
2842
2843 input_files[nb_input_files] = ic;
2844 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2845 /* dump the file content */
2846 if (verbose >= 0)
2847 dump_format(ic, nb_input_files, filename, 0);
2848
2849 nb_input_files++;
2850 file_iformat = NULL;
2851 file_oformat = NULL;
2852
2853 video_channel = 0;
2854
2855 rate_emu = 0;
2856 av_freep(&video_codec_name);
2857 av_freep(&audio_codec_name);
2858 av_freep(&subtitle_codec_name);
2859 }
2860
2861 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2862 int *has_subtitle_ptr)
2863 {
2864 int has_video, has_audio, has_subtitle, i, j;
2865 AVFormatContext *ic;
2866
2867 has_video = 0;
2868 has_audio = 0;
2869 has_subtitle = 0;
2870 for(j=0;j<nb_input_files;j++) {
2871 ic = input_files[j];
2872 for(i=0;i<ic->nb_streams;i++) {
2873 AVCodecContext *enc = ic->streams[i]->codec;
2874 switch(enc->codec_type) {
2875 case CODEC_TYPE_AUDIO:
2876 has_audio = 1;
2877 break;
2878 case CODEC_TYPE_VIDEO:
2879 has_video = 1;
2880 break;
2881 case CODEC_TYPE_SUBTITLE:
2882 has_subtitle = 1;
2883 break;
2884 case CODEC_TYPE_DATA:
2885 case CODEC_TYPE_ATTACHMENT:
2886 case CODEC_TYPE_UNKNOWN:
2887 break;
2888 default:
2889 abort();
2890 }
2891 }
2892 }
2893 *has_video_ptr = has_video;
2894 *has_audio_ptr = has_audio;
2895 *has_subtitle_ptr = has_subtitle;
2896 }
2897
2898 static void new_video_stream(AVFormatContext *oc)
2899 {
2900 AVStream *st;
2901 AVCodecContext *video_enc;
2902 int codec_id;
2903
2904 st = av_new_stream(oc, oc->nb_streams);
2905 if (!st) {
2906 fprintf(stderr, "Could not alloc stream\n");
2907 av_exit(1);
2908 }
2909 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2910 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2911 video_bitstream_filters= NULL;
2912
2913 if(thread_count>1)
2914 avcodec_thread_init(st->codec, thread_count);
2915
2916 video_enc = st->codec;
2917
2918 if(video_codec_tag)
2919 video_enc->codec_tag= video_codec_tag;
2920
2921 if( (video_global_header&1)
2922 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2923 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2924 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2925 }
2926 if(video_global_header&2){
2927 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2928 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2929 }
2930
2931 if (video_stream_copy) {
2932 st->stream_copy = 1;
2933 video_enc->codec_type = CODEC_TYPE_VIDEO;
2934 } else {
2935 const char *p;
2936 int i;
2937 AVCodec *codec;
2938 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
2939
2940 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2941 if (video_codec_name)
2942 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
2943
2944 video_enc->codec_id = codec_id;
2945 codec = avcodec_find_encoder(codec_id);
2946
2947 for(i=0; i<opt_name_count; i++){
2948 char buf[256];
2949 const AVOption *opt;
2950 const char *str= av_get_string(avctx_opts[CODEC_TYPE_VIDEO], opt_names[i], &opt, buf, sizeof(buf));
2951 if(str && (opt->flags & AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
2952 av_set_string(video_enc, opt_names[i], str);
2953 }
2954
2955 video_enc->time_base.den = fps.num;
2956 video_enc->time_base.num = fps.den;
2957 if(codec && codec->supported_framerates){
2958 const AVRational *p= codec->supported_framerates;
2959 const AVRational *best=NULL;
2960 AVRational best_error= (AVRational){INT_MAX, 1};
2961 for(; p->den!=0; p++){
2962 AVRational error= av_sub_q(fps, *p);
2963 if(error.num <0) error.num *= -1;
2964 if(av_cmp_q(error, best_error) < 0){
2965 best_error= error;
2966 best= p;
2967 }
2968 }
2969 video_enc->time_base.den= best->num;
2970 video_enc->time_base.num= best->den;
2971 }
2972
2973 video_enc->width = frame_width + frame_padright + frame_padleft;
2974 video_enc->height = frame_height + frame_padtop + frame_padbottom;
2975 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
2976 video_enc->pix_fmt = frame_pix_fmt;
2977
2978 if(codec && codec->pix_fmts){
2979 const enum PixelFormat *p= codec->pix_fmts;
2980 for(; *p!=-1; p++){
2981 if(*p == video_enc->pix_fmt)
2982 break;
2983 }
2984 if(*p == -1)
2985 video_enc->pix_fmt = codec->pix_fmts[0];
2986 }
2987
2988 if (intra_only)
2989 video_enc->gop_size = 0;
2990 if (video_qscale || same_quality) {
2991 video_enc->flags |= CODEC_FLAG_QSCALE;
2992 video_enc->global_quality=
2993 st->quality = FF_QP2LAMBDA * video_qscale;
2994 }
2995
2996 if(intra_matrix)
2997 video_enc->intra_matrix = intra_matrix;
2998 if(inter_matrix)
2999 video_enc->inter_matrix = inter_matrix;
3000
3001 video_enc->max_qdiff = video_qdiff;
3002 video_enc->thread_count = thread_count;
3003 p= video_rc_override_string;
3004 for(i=0; p; i++){
3005 int start, end, q;
3006 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3007 if(e!=3){
3008 fprintf(stderr, "error parsing rc_override\n");
3009 av_exit(1);
3010 }
3011 video_enc->rc_override=
3012 av_realloc(video_enc->rc_override,
3013 sizeof(RcOverride)*(i+1));
3014 video_enc->rc_override[i].start_frame= start;
3015 video_enc->rc_override[i].end_frame = end;
3016 if(q>0){
3017 video_enc->rc_override[i].qscale= q;
3018 video_enc->rc_override[i].quality_factor= 1.0;
3019 }
3020 else{
3021 video_enc->rc_override[i].qscale= 0;
3022 video_enc->rc_override[i].quality_factor= -q/100.0;
3023 }
3024 p= strchr(p, '/');
3025 if(p) p++;
3026 }
3027 video_enc->rc_override_count=i;
3028 if (!video_enc->rc_initial_buffer_occupancy)
3029 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3030 video_enc->me_threshold= me_threshold;
3031 video_enc->intra_dc_precision= intra_dc_precision - 8;
3032 video_enc->strict_std_compliance = strict;
3033
3034 if (do_psnr)
3035 video_enc->flags|= CODEC_FLAG_PSNR;
3036
3037 /* two pass mode */
3038 if (do_pass) {
3039 if (do_pass == 1) {
3040 video_enc->flags |= CODEC_FLAG_PASS1;
3041 } else {
3042 video_enc->flags |= CODEC_FLAG_PASS2;
3043 }
3044 }
3045 }
3046
3047 /* reset some key parameters */
3048 video_disable = 0;
3049 av_freep(&video_codec_name);
3050 video_stream_copy = 0;
3051 }
3052
3053 static void new_audio_stream(AVFormatContext *oc)
3054 {
3055 AVStream *st;
3056 AVCodecContext *audio_enc;
3057 int codec_id, i;
3058
3059 st = av_new_stream(oc, oc->nb_streams);
3060 if (!st) {
3061 fprintf(stderr, "Could not alloc stream\n");
3062 av_exit(1);
3063 }
3064 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3065
3066 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3067 audio_bitstream_filters= NULL;
3068
3069 if(thread_count>1)
3070 avcodec_thread_init(st->codec, thread_count);
3071
3072 audio_enc = st->codec;
3073 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3074 audio_enc->strict_std_compliance = strict;
3075
3076 if(audio_codec_tag)
3077 audio_enc->codec_tag= audio_codec_tag;
3078
3079 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3080 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3081 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3082 }
3083 if (audio_stream_copy) {
3084 st->stream_copy = 1;
3085 audio_enc->channels = audio_channels;
3086 } else {
3087 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3088
3089 for(i=0; i<opt_name_count; i++){
3090 char buf[256];
3091 const AVOption *opt;
3092 const char *str= av_get_string(avctx_opts[CODEC_TYPE_AUDIO], opt_names[i], &opt, buf, sizeof(buf));
3093 if(str && (opt->flags & AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
3094 av_set_string(audio_enc, opt_names[i], str);
3095 }
3096
3097 if (audio_codec_name)
3098 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3099 audio_enc->codec_id = codec_id;
3100
3101 if (audio_qscale > QSCALE_NONE) {
3102 audio_enc->flags |= CODEC_FLAG_QSCALE;
3103 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3104 }
3105 audio_enc->thread_count = thread_count;
3106 audio_enc->channels = audio_channels;
3107 }
3108 audio_enc->sample_rate = audio_sample_rate;
3109 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3110 if (audio_language) {
3111 av_strlcpy(st->language, audio_language, sizeof(st->language));
3112 av_free(audio_language);
3113 audio_language = NULL;
3114 }
3115
3116 /* reset some key parameters */
3117 audio_disable = 0;
3118 av_freep(&audio_codec_name);
3119 audio_stream_copy = 0;
3120 }
3121
3122 static void new_subtitle_stream(AVFormatContext *oc)
3123 {
3124 AVStream *st;
3125 AVCodecContext *subtitle_enc;
3126 int i;
3127
3128 st = av_new_stream(oc, oc->nb_streams);
3129 if (!st) {
3130 fprintf(stderr, "Could not alloc stream\n");
3131 av_exit(1);
3132 }
3133 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3134
3135 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3136 subtitle_bitstream_filters= NULL;
3137
3138 subtitle_enc = st->codec;
3139 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3140 if (subtitle_stream_copy) {
3141 st->stream_copy = 1;
3142 } else {
3143 for(i=0; i<opt_name_count; i++){
3144 char buf[256];
3145 const AVOption *opt;
3146 const char *str= av_get_string(avctx_opts[CODEC_TYPE_SUBTITLE], opt_names[i], &opt, buf, sizeof(buf));
3147 if(str && (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
3148 av_set_string(subtitle_enc, opt_names[i], str);
3149 }
3150 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3151 }
3152
3153 if (subtitle_language) {
3154 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
3155 av_free(subtitle_language);
3156 subtitle_language = NULL;
3157 }
3158
3159 subtitle_disable = 0;
3160 av_freep(&subtitle_codec_name);
3161 subtitle_stream_copy = 0;
3162 }
3163
3164 static void opt_new_audio_stream(void)
3165 {
3166 AVFormatContext *oc;
3167 if (nb_output_files <= 0) {
3168 fprintf(stderr, "At least one output file must be specified\n");
3169 av_exit(1);
3170 }
3171 oc = output_files[nb_output_files - 1];
3172 new_audio_stream(oc);
3173 }
3174
3175 static void opt_new_video_stream(void)
3176 {
3177 AVFormatContext *oc;
3178 if (nb_output_files <= 0) {
3179 fprintf(stderr, "At least one output file must be specified\n");
3180 av_exit(1);
3181 }
3182 oc = output_files[nb_output_files - 1];
3183 new_video_stream(oc);
3184 }
3185
3186 static void opt_new_subtitle_stream(void)
3187 {
3188 AVFormatContext *oc;
3189 if (nb_output_files <= 0) {
3190 fprintf(stderr, "At least one output file must be specified\n");
3191 av_exit(1);
3192 }
3193 oc = output_files[nb_output_files - 1];
3194 new_subtitle_stream(oc);
3195 }
3196
3197 static void opt_output_file(const char *filename)
3198 {
3199 AVFormatContext *oc;
3200 int use_video, use_audio, use_subtitle;
3201 int input_has_video, input_has_audio, input_has_subtitle, i;
3202 AVFormatParameters params, *ap = &params;
3203
3204 if (!strcmp(filename, "-"))
3205 filename = "pipe:";
3206
3207 oc = av_alloc_format_context();
3208
3209 if (!file_oformat) {
3210 file_oformat = guess_format(NULL, filename, NULL);
3211 if (!file_oformat) {
3212 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3213 filename);
3214 av_exit(1);
3215 }
3216 }
3217
3218 oc->oformat = file_oformat;
3219 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3220
3221 if (!strcmp(file_oformat->name, "ffm") &&
3222 av_strstart(filename, "http:", NULL)) {
3223 /* special case for files sent to ffserver: we get the stream
3224 parameters from ffserver */
3225 if (read_ffserver_streams(oc, filename) < 0) {
3226 fprintf(stderr, "Could not read stream parameters from '%s'\n