Add configuration options section to help output.
[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 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavformat/framehook.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/audioconvert.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #if HAVE_SYS_RESOURCE_H
45 #include <sys/types.h>
46 #include <sys/resource.h>
47 #elif HAVE_GETPROCESSTIMES
48 #include <windows.h>
49 #endif
50
51 #if HAVE_SYS_SELECT_H
52 #include <sys/select.h>
53 #endif
54
55 #if HAVE_TERMIOS_H
56 #include <fcntl.h>
57 #include <sys/ioctl.h>
58 #include <sys/time.h>
59 #include <termios.h>
60 #elif HAVE_CONIO_H
61 #include <conio.h>
62 #endif
63 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
64 #include <time.h>
65
66 #include "cmdutils.h"
67
68 #undef NDEBUG
69 #include <assert.h>
70
71 #undef exit
72
73 const char program_name[] = "FFmpeg";
74 const int program_birth_year = 2000;
75
76 /* select an input stream for an output stream */
77 typedef struct AVStreamMap {
78 int file_index;
79 int stream_index;
80 int sync_file_index;
81 int sync_stream_index;
82 } AVStreamMap;
83
84 /** select an input file for an output file */
85 typedef struct AVMetaDataMap {
86 int out_file;
87 int in_file;
88 } AVMetaDataMap;
89
90 static const OptionDef options[];
91
92 #define MAX_FILES 20
93
94 static AVFormatContext *input_files[MAX_FILES];
95 static int64_t input_files_ts_offset[MAX_FILES];
96 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
97 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
98 static int nb_input_files = 0;
99 static int nb_icodecs;
100
101 static AVFormatContext *output_files[MAX_FILES];
102 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
103 static int nb_output_files = 0;
104 static int nb_ocodecs;
105
106 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
107 static int nb_stream_maps;
108
109 static AVMetaDataMap meta_data_maps[MAX_FILES];
110 static int nb_meta_data_maps;
111
112 static AVInputFormat *file_iformat;
113 static AVOutputFormat *file_oformat;
114 static int frame_width = 0;
115 static int frame_height = 0;
116 static float frame_aspect_ratio = 0;
117 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
118 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
119 static int frame_padtop = 0;
120 static int frame_padbottom = 0;
121 static int frame_padleft = 0;
122 static int frame_padright = 0;
123 static int padcolor[3] = {16,128,128}; /* default to black */
124 static int frame_topBand = 0;
125 static int frame_bottomBand = 0;
126 static int frame_leftBand = 0;
127 static int frame_rightBand = 0;
128 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
129 static AVRational frame_rate;
130 static float video_qscale = 0;
131 static uint16_t *intra_matrix = NULL;
132 static uint16_t *inter_matrix = NULL;
133 #if 0 //experimental, (can be removed)
134 static float video_rc_qsquish=1.0;
135 static float video_rc_qmod_amp=0;
136 static int video_rc_qmod_freq=0;
137 #endif
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static int video_codec_tag = 0;
143 static int same_quality = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int loop_input = 0;
149 static int loop_output = AVFMT_NOOUTPUTLOOP;
150 static int qp_hist = 0;
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 44100;
154 static int64_t channel_layout = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 1;
159 static char *audio_codec_name = NULL;
160 static int audio_codec_tag = 0;
161 static char *audio_language = NULL;
162
163 static int subtitle_disable = 0;
164 static char *subtitle_codec_name = NULL;
165 static char *subtitle_language = NULL;
166
167 static float mux_preload= 0.5;
168 static float mux_max_delay= 0.7;
169
170 static int64_t recording_time = INT64_MAX;
171 static int64_t start_time = 0;
172 static int64_t rec_timestamp = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static char *str_title = NULL;
176 static char *str_author = NULL;
177 static char *str_copyright = NULL;
178 static char *str_comment = NULL;
179 static char *str_genre = NULL;
180 static char *str_album = NULL;
181 static int do_benchmark = 0;
182 static int do_hex_dump = 0;
183 static int do_pkt_dump = 0;
184 static int do_psnr = 0;
185 static int do_pass = 0;
186 static char *pass_logfilename_prefix = NULL;
187 static int audio_stream_copy = 0;
188 static int video_stream_copy = 0;
189 static int subtitle_stream_copy = 0;
190 static int video_sync_method= -1;
191 static int audio_sync_method= 0;
192 static float audio_drift_threshold= 0.1;
193 static int copy_ts= 0;
194 static int opt_shortest = 0;
195 static int video_global_header = 0;
196 static char *vstats_filename;
197 static FILE *vstats_file;
198 static int opt_programid = 0;
199 static int copy_initial_nonkeyframes = 0;
200
201 static int rate_emu = 0;
202
203 static int video_channel = 0;
204 static char *video_standard;
205
206 static int audio_volume = 256;
207
208 static int exit_on_error = 0;
209 static int using_stdin = 0;
210 static int using_vhook = 0;
211 static int verbose = 1;
212 static int thread_count= 1;
213 static int q_pressed = 0;
214 static int64_t video_size = 0;
215 static int64_t audio_size = 0;
216 static int64_t extra_size = 0;
217 static int nb_frames_dup = 0;
218 static int nb_frames_drop = 0;
219 static int input_sync;
220 static uint64_t limit_filesize = 0;
221 static int force_fps = 0;
222
223 static int pgmyuv_compatibility_hack=0;
224 static float dts_delta_threshold = 10;
225
226 static unsigned int sws_flags = SWS_BICUBIC;
227
228 static int64_t timer_start;
229
230 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
231 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
232 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
234
235 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
236
237 struct AVInputStream;
238
239 typedef struct AVOutputStream {
240 int file_index; /* file index */
241 int index; /* stream index in the output file */
242 int source_index; /* AVInputStream index */
243 AVStream *st; /* stream in the output file */
244 int encoding_needed; /* true if encoding needed for this stream */
245 int frame_number;
246 /* input pts and corresponding output pts
247 for A/V sync */
248 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
249 struct AVInputStream *sync_ist; /* input stream to sync against */
250 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
251 /* video only */
252 int video_resample;
253 AVFrame pict_tmp; /* temporary image for resampling */
254 struct SwsContext *img_resample_ctx; /* for image resampling */
255 int resample_height;
256
257 int video_crop;
258 int topBand; /* cropping area sizes */
259 int leftBand;
260
261 int video_pad;
262 int padtop; /* padding area sizes */
263 int padbottom;
264 int padleft;
265 int padright;
266
267 /* audio only */
268 int audio_resample;
269 ReSampleContext *resample; /* for audio resampling */
270 int reformat_pair;
271 AVAudioConvert *reformat_ctx;
272 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
273 FILE *logfile;
274 } AVOutputStream;
275
276 typedef struct AVInputStream {
277 int file_index;
278 int index;
279 AVStream *st;
280 int discard; /* true if stream data should be discarded */
281 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
282 int64_t sample_index; /* current sample */
283
284 int64_t start; /* time when read started */
285 int64_t next_pts; /* synthetic pts for cases where pkt.pts
286 is not defined */
287 int64_t pts; /* current pts */
288 int is_start; /* is 1 at the start and after a discontinuity */
289 } AVInputStream;
290
291 typedef struct AVInputFile {
292 int eof_reached; /* true if eof reached */
293 int ist_index; /* index of first stream in ist_table */
294 int buffer_size; /* current total buffer size */
295 int nb_streams; /* nb streams we are aware of */
296 } AVInputFile;
297
298 #if HAVE_TERMIOS_H
299
300 /* init terminal so that we can grab keys */
301 static struct termios oldtty;
302 #endif
303
304 static void term_exit(void)
305 {
306 #if HAVE_TERMIOS_H
307 tcsetattr (0, TCSANOW, &oldtty);
308 #endif
309 }
310
311 static volatile sig_atomic_t received_sigterm = 0;
312
313 static void
314 sigterm_handler(int sig)
315 {
316 received_sigterm = sig;
317 term_exit();
318 }
319
320 static void term_init(void)
321 {
322 #if HAVE_TERMIOS_H
323 struct termios tty;
324
325 tcgetattr (0, &tty);
326 oldtty = tty;
327
328 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
329 |INLCR|IGNCR|ICRNL|IXON);
330 tty.c_oflag |= OPOST;
331 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
332 tty.c_cflag &= ~(CSIZE|PARENB);
333 tty.c_cflag |= CS8;
334 tty.c_cc[VMIN] = 1;
335 tty.c_cc[VTIME] = 0;
336
337 tcsetattr (0, TCSANOW, &tty);
338 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
339 #endif
340
341 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
342 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
343 /*
344 register a function to be called at normal program termination
345 */
346 atexit(term_exit);
347 #if CONFIG_BEOS_NETSERVER
348 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
349 #endif
350 }
351
352 /* read a key without blocking */
353 static int read_key(void)
354 {
355 #if HAVE_TERMIOS_H
356 int n = 1;
357 unsigned char ch;
358 #if !CONFIG_BEOS_NETSERVER
359 struct timeval tv;
360 fd_set rfds;
361
362 FD_ZERO(&rfds);
363 FD_SET(0, &rfds);
364 tv.tv_sec = 0;
365 tv.tv_usec = 0;
366 n = select(1, &rfds, NULL, NULL, &tv);
367 #endif
368 if (n > 0) {
369 n = read(0, &ch, 1);
370 if (n == 1)
371 return ch;
372
373 return n;
374 }
375 #elif HAVE_CONIO_H
376 if(kbhit())
377 return(getch());
378 #endif
379 return -1;
380 }
381
382 static int decode_interrupt_cb(void)
383 {
384 return q_pressed || (q_pressed = read_key() == 'q');
385 }
386
387 static int av_exit(int ret)
388 {
389 int i;
390
391 /* close files */
392 for(i=0;i<nb_output_files;i++) {
393 /* maybe av_close_output_file ??? */
394 AVFormatContext *s = output_files[i];
395 int j;
396 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
397 url_fclose(s->pb);
398 for(j=0;j<s->nb_streams;j++) {
399 av_metadata_free(&s->streams[j]->metadata);
400 av_free(s->streams[j]->codec);
401 av_free(s->streams[j]);
402 }
403 for(j=0;j<s->nb_programs;j++) {
404 av_metadata_free(&s->programs[j]->metadata);
405 }
406 for(j=0;j<s->nb_chapters;j++) {
407 av_metadata_free(&s->chapters[j]->metadata);
408 }
409 av_metadata_free(&s->metadata);
410 av_free(s);
411 }
412 for(i=0;i<nb_input_files;i++)
413 av_close_input_file(input_files[i]);
414
415 av_free(intra_matrix);
416 av_free(inter_matrix);
417
418 if (vstats_file)
419 fclose(vstats_file);
420 av_free(vstats_filename);
421
422 av_free(opt_names);
423
424 av_free(video_codec_name);
425 av_free(audio_codec_name);
426 av_free(subtitle_codec_name);
427
428 av_free(video_standard);
429
430 #if CONFIG_POWERPC_PERF
431 void powerpc_display_perf_report(void);
432 powerpc_display_perf_report();
433 #endif /* CONFIG_POWERPC_PERF */
434
435 if (received_sigterm) {
436 fprintf(stderr,
437 "Received signal %d: terminating.\n",
438 (int) received_sigterm);
439 exit (255);
440 }
441
442 exit(ret); /* not all OS-es handle main() return value */
443 return ret;
444 }
445
446 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
447 {
448 int i, err;
449 AVFormatContext *ic;
450 int nopts = 0;
451
452 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
453 if (err < 0)
454 return err;
455 /* copy stream format */
456 s->nb_streams = ic->nb_streams;
457 for(i=0;i<ic->nb_streams;i++) {
458 AVStream *st;
459
460 // FIXME: a more elegant solution is needed
461 st = av_mallocz(sizeof(AVStream));
462 memcpy(st, ic->streams[i], sizeof(AVStream));
463 st->codec = avcodec_alloc_context();
464 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
465 s->streams[i] = st;
466
467 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
468 st->stream_copy = 1;
469 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
470 st->stream_copy = 1;
471
472 if(!st->codec->thread_count)
473 st->codec->thread_count = 1;
474 if(st->codec->thread_count>1)
475 avcodec_thread_init(st->codec, st->codec->thread_count);
476
477 if(st->codec->flags & CODEC_FLAG_BITEXACT)
478 nopts = 1;
479 }
480
481 if (!nopts)
482 s->timestamp = av_gettime();
483
484 av_close_input_file(ic);
485 return 0;
486 }
487
488 static double
489 get_sync_ipts(const AVOutputStream *ost)
490 {
491 const AVInputStream *ist = ost->sync_ist;
492 return (double)(ist->pts - start_time)/AV_TIME_BASE;
493 }
494
495 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
496 int ret;
497
498 while(bsfc){
499 AVPacket new_pkt= *pkt;
500 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
501 &new_pkt.data, &new_pkt.size,
502 pkt->data, pkt->size,
503 pkt->flags & PKT_FLAG_KEY);
504 if(a>0){
505 av_free_packet(pkt);
506 new_pkt.destruct= av_destruct_packet;
507 } else if(a<0){
508 fprintf(stderr, "%s failed for stream %d, codec %s",
509 bsfc->filter->name, pkt->stream_index,
510 avctx->codec ? avctx->codec->name : "copy");
511 print_error("", a);
512 if (exit_on_error)
513 av_exit(1);
514 }
515 *pkt= new_pkt;
516
517 bsfc= bsfc->next;
518 }
519
520 ret= av_interleaved_write_frame(s, pkt);
521 if(ret < 0){
522 print_error("av_interleaved_write_frame()", ret);
523 av_exit(1);
524 }
525 }
526
527 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
528
529 static void do_audio_out(AVFormatContext *s,
530 AVOutputStream *ost,
531 AVInputStream *ist,
532 unsigned char *buf, int size)
533 {
534 uint8_t *buftmp;
535 static uint8_t *audio_buf = NULL;
536 static uint8_t *audio_out = NULL;
537 static uint8_t *audio_out2 = NULL;
538 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
539
540 int size_out, frame_bytes, ret;
541 AVCodecContext *enc= ost->st->codec;
542 AVCodecContext *dec= ist->st->codec;
543 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
544 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
545
546 /* SC: dynamic allocation of buffers */
547 if (!audio_buf)
548 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
549 if (!audio_out)
550 audio_out = av_malloc(audio_out_size);
551 if (!audio_buf || !audio_out)
552 return; /* Should signal an error ! */
553
554 if (enc->channels != dec->channels)
555 ost->audio_resample = 1;
556
557 if (ost->audio_resample && !ost->resample) {
558 if (dec->sample_fmt != SAMPLE_FMT_S16) {
559 fprintf(stderr, "Audio resampler only works with 16 bits per sample, patch welcome.\n");
560 av_exit(1);
561 }
562 ost->resample = audio_resample_init(enc->channels, dec->channels,
563 enc->sample_rate, dec->sample_rate);
564 if (!ost->resample) {
565 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
566 dec->channels, dec->sample_rate,
567 enc->channels, enc->sample_rate);
568 av_exit(1);
569 }
570 }
571
572 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
573 if (dec->sample_fmt!=enc->sample_fmt &&
574 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
575 if (!audio_out2)
576 audio_out2 = av_malloc(audio_out_size);
577 if (!audio_out2)
578 av_exit(1);
579 if (ost->reformat_ctx)
580 av_audio_convert_free(ost->reformat_ctx);
581 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
582 dec->sample_fmt, 1, NULL, 0);
583 if (!ost->reformat_ctx) {
584 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
585 avcodec_get_sample_fmt_name(dec->sample_fmt),
586 avcodec_get_sample_fmt_name(enc->sample_fmt));
587 av_exit(1);
588 }
589 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
590 }
591
592 if(audio_sync_method){
593 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
594 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
595 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
596 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
597
598 //FIXME resample delay
599 if(fabs(delta) > 50){
600 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
601 if(byte_delta < 0){
602 byte_delta= FFMAX(byte_delta, -size);
603 size += byte_delta;
604 buf -= byte_delta;
605 if(verbose > 2)
606 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
607 if(!size)
608 return;
609 ist->is_start=0;
610 }else{
611 static uint8_t *input_tmp= NULL;
612 input_tmp= av_realloc(input_tmp, byte_delta + size);
613
614 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
615 ist->is_start=0;
616 else
617 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
618
619 memset(input_tmp, 0, byte_delta);
620 memcpy(input_tmp + byte_delta, buf, size);
621 buf= input_tmp;
622 size += byte_delta;
623 if(verbose > 2)
624 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
625 }
626 }else if(audio_sync_method>1){
627 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
628 assert(ost->audio_resample);
629 if(verbose > 2)
630 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
631 // 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));
632 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
633 }
634 }
635 }else
636 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
637 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
638
639 if (ost->audio_resample) {
640 buftmp = audio_buf;
641 size_out = audio_resample(ost->resample,
642 (short *)buftmp, (short *)buf,
643 size / (ist->st->codec->channels * isize));
644 size_out = size_out * enc->channels * osize;
645 } else {
646 buftmp = buf;
647 size_out = size;
648 }
649
650 if (dec->sample_fmt!=enc->sample_fmt) {
651 const void *ibuf[6]= {buftmp};
652 void *obuf[6]= {audio_out2};
653 int istride[6]= {isize};
654 int ostride[6]= {osize};
655 int len= size_out/istride[0];
656 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
657 printf("av_audio_convert() failed\n");
658 if (exit_on_error)
659 av_exit(1);
660 return;
661 }
662 buftmp = audio_out2;
663 size_out = len*osize;
664 }
665
666 /* now encode as many frames as possible */
667 if (enc->frame_size > 1) {
668 /* output resampled raw samples */
669 if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
670 fprintf(stderr, "av_fifo_realloc2() failed\n");
671 av_exit(1);
672 }
673 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
674
675 frame_bytes = enc->frame_size * osize * enc->channels;
676
677 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
678 AVPacket pkt;
679 av_init_packet(&pkt);
680
681 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
682
683 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
684
685 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
686 (short *)audio_buf);
687 if (ret < 0) {
688 fprintf(stderr, "Audio encoding failed\n");
689 av_exit(1);
690 }
691 audio_size += ret;
692 pkt.stream_index= ost->index;
693 pkt.data= audio_out;
694 pkt.size= ret;
695 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
696 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
697 pkt.flags |= PKT_FLAG_KEY;
698 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
699
700 ost->sync_opts += enc->frame_size;
701 }
702 } else {
703 AVPacket pkt;
704 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
705 av_init_packet(&pkt);
706
707 ost->sync_opts += size_out / (osize * enc->channels);
708
709 /* output a pcm frame */
710 /* determine the size of the coded buffer */
711 size_out /= osize;
712 if (coded_bps)
713 size_out *= coded_bps;
714
715 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
716 ret = avcodec_encode_audio(enc, audio_out, size_out,
717 (short *)buftmp);
718 if (ret < 0) {
719 fprintf(stderr, "Audio encoding failed\n");
720 av_exit(1);
721 }
722 audio_size += ret;
723 pkt.stream_index= ost->index;
724 pkt.data= audio_out;
725 pkt.size= ret;
726 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
727 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
728 pkt.flags |= PKT_FLAG_KEY;
729 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
730 }
731 }
732
733 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
734 {
735 AVCodecContext *dec;
736 AVPicture *picture2;
737 AVPicture picture_tmp;
738 uint8_t *buf = 0;
739
740 dec = ist->st->codec;
741
742 /* deinterlace : must be done before any resize */
743 if (do_deinterlace || using_vhook) {
744 int size;
745
746 /* create temporary picture */
747 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
748 buf = av_malloc(size);
749 if (!buf)
750 return;
751
752 picture2 = &picture_tmp;
753 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
754
755 if (do_deinterlace){
756 if(avpicture_deinterlace(picture2, picture,
757 dec->pix_fmt, dec->width, dec->height) < 0) {
758 /* if error, do not deinterlace */
759 fprintf(stderr, "Deinterlacing failed\n");
760 av_free(buf);
761 buf = NULL;
762 picture2 = picture;
763 }
764 } else {
765 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
766 }
767 } else {
768 picture2 = picture;
769 }
770
771 if (CONFIG_VHOOK)
772 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
773 1000000 * ist->pts / AV_TIME_BASE);
774
775 if (picture != picture2)
776 *picture = *picture2;
777 *bufp = buf;
778 }
779
780 /* we begin to correct av delay at this threshold */
781 #define AV_DELAY_MAX 0.100
782
783 static void do_subtitle_out(AVFormatContext *s,
784 AVOutputStream *ost,
785 AVInputStream *ist,
786 AVSubtitle *sub,
787 int64_t pts)
788 {
789 static uint8_t *subtitle_out = NULL;
790 int subtitle_out_max_size = 65536;
791 int subtitle_out_size, nb, i;
792 AVCodecContext *enc;
793 AVPacket pkt;
794
795 if (pts == AV_NOPTS_VALUE) {
796 fprintf(stderr, "Subtitle packets must have a pts\n");
797 if (exit_on_error)
798 av_exit(1);
799 return;
800 }
801
802 enc = ost->st->codec;
803
804 if (!subtitle_out) {
805 subtitle_out = av_malloc(subtitle_out_max_size);
806 }
807
808 /* Note: DVB subtitle need one packet to draw them and one other
809 packet to clear them */
810 /* XXX: signal it in the codec context ? */
811 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
812 nb = 2;
813 else
814 nb = 1;
815
816 for(i = 0; i < nb; i++) {
817 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
818 subtitle_out_max_size, sub);
819
820 av_init_packet(&pkt);
821 pkt.stream_index = ost->index;
822 pkt.data = subtitle_out;
823 pkt.size = subtitle_out_size;
824 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
825 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
826 /* XXX: the pts correction is handled here. Maybe handling
827 it in the codec would be better */
828 if (i == 0)
829 pkt.pts += 90 * sub->start_display_time;
830 else
831 pkt.pts += 90 * sub->end_display_time;
832 }
833 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
834 }
835 }
836
837 static int bit_buffer_size= 1024*256;
838 static uint8_t *bit_buffer= NULL;
839
840 static void do_video_out(AVFormatContext *s,
841 AVOutputStream *ost,
842 AVInputStream *ist,
843 AVFrame *in_picture,
844 int *frame_size)
845 {
846 int nb_frames, i, ret;
847 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
848 AVFrame picture_crop_temp, picture_pad_temp;
849 AVCodecContext *enc, *dec;
850
851 avcodec_get_frame_defaults(&picture_crop_temp);
852 avcodec_get_frame_defaults(&picture_pad_temp);
853
854 enc = ost->st->codec;
855 dec = ist->st->codec;
856
857 /* by default, we output a single frame */
858 nb_frames = 1;
859
860 *frame_size = 0;
861
862 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
863 double vdelta;
864 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
865 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
866 if (vdelta < -1.1)
867 nb_frames = 0;
868 else if (video_sync_method == 2)
869 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
870 else if (vdelta > 1.1)
871 nb_frames = lrintf(vdelta);
872 //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);
873 if (nb_frames == 0){
874 ++nb_frames_drop;
875 if (verbose>2)
876 fprintf(stderr, "*** drop!\n");
877 }else if (nb_frames > 1) {
878 nb_frames_dup += nb_frames;
879 if (verbose>2)
880 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
881 }
882 }else
883 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
884
885 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
886 if (nb_frames <= 0)
887 return;
888
889 if (ost->video_crop) {
890 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
891 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
892 if (exit_on_error)
893 av_exit(1);
894 return;
895 }
896 formatted_picture = &picture_crop_temp;
897 } else {
898 formatted_picture = in_picture;
899 }
900
901 final_picture = formatted_picture;
902 padding_src = formatted_picture;
903 resampling_dst = &ost->pict_tmp;
904 if (ost->video_pad) {
905 final_picture = &ost->pict_tmp;
906 if (ost->video_resample) {
907 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
908 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
909 if (exit_on_error)
910 av_exit(1);
911 return;
912 }
913 resampling_dst = &picture_pad_temp;
914 }
915 }
916
917 if (ost->video_resample) {
918 padding_src = NULL;
919 final_picture = &ost->pict_tmp;
920 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
921 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
922 }
923
924 if (ost->video_pad) {
925 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
926 enc->height, enc->width, enc->pix_fmt,
927 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
928 }
929
930 /* duplicates frame if needed */
931 for(i=0;i<nb_frames;i++) {
932 AVPacket pkt;
933 av_init_packet(&pkt);
934 pkt.stream_index= ost->index;
935
936 if (s->oformat->flags & AVFMT_RAWPICTURE) {
937 /* raw pictures are written as AVPicture structure to
938 avoid any copies. We support temorarily the older
939 method. */
940 AVFrame* old_frame = enc->coded_frame;
941 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
942 pkt.data= (uint8_t *)final_picture;
943 pkt.size= sizeof(AVPicture);
944 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
945 pkt.flags |= PKT_FLAG_KEY;
946
947 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
948 enc->coded_frame = old_frame;
949 } else {
950 AVFrame big_picture;
951
952 big_picture= *final_picture;
953 /* better than nothing: use input picture interlaced
954 settings */
955 big_picture.interlaced_frame = in_picture->interlaced_frame;
956 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
957 if(top_field_first == -1)
958 big_picture.top_field_first = in_picture->top_field_first;
959 else
960 big_picture.top_field_first = top_field_first;
961 }
962
963 /* handles sameq here. This is not correct because it may
964 not be a global option */
965 if (same_quality) {
966 big_picture.quality = ist->st->quality;
967 }else
968 big_picture.quality = ost->st->quality;
969 if(!me_threshold)
970 big_picture.pict_type = 0;
971 // big_picture.pts = AV_NOPTS_VALUE;
972 big_picture.pts= ost->sync_opts;
973 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
974 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
975 ret = avcodec_encode_video(enc,
976 bit_buffer, bit_buffer_size,
977 &big_picture);
978 if (ret < 0) {
979 fprintf(stderr, "Video encoding failed\n");
980 av_exit(1);
981 }
982 //enc->frame_number = enc->real_pict_num;
983 if(ret>0){
984 pkt.data= bit_buffer;
985 pkt.size= ret;
986 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
987 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
988 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
989 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
990 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
991
992 if(enc->coded_frame->key_frame)
993 pkt.flags |= PKT_FLAG_KEY;
994 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
995 *frame_size = ret;
996 video_size += ret;
997 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
998 // enc->frame_number-1, enc->real_pict_num, ret,
999 // enc->pict_type);
1000 /* if two pass, output log */
1001 if (ost->logfile && enc->stats_out) {
1002 fprintf(ost->logfile, "%s", enc->stats_out);
1003 }
1004 }
1005 }
1006 ost->sync_opts++;
1007 ost->frame_number++;
1008 }
1009 }
1010
1011 static double psnr(double d){
1012 return -10.0*log(d)/log(10.0);
1013 }
1014
1015 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1016 int frame_size)
1017 {
1018 AVCodecContext *enc;
1019 int frame_number;
1020 double ti1, bitrate, avg_bitrate;
1021
1022 /* this is executed just the first time do_video_stats is called */
1023 if (!vstats_file) {
1024 vstats_file = fopen(vstats_filename, "w");
1025 if (!vstats_file) {
1026 perror("fopen");
1027 av_exit(1);
1028 }
1029 }
1030
1031 enc = ost->st->codec;
1032 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1033 frame_number = ost->frame_number;
1034 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1035 if (enc->flags&CODEC_FLAG_PSNR)
1036 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1037
1038 fprintf(vstats_file,"f_size= %6d ", frame_size);
1039 /* compute pts value */
1040 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1041 if (ti1 < 0.01)
1042 ti1 = 0.01;
1043
1044 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1045 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1046 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1047 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1048 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1049 }
1050 }
1051
1052 static void print_report(AVFormatContext **output_files,
1053 AVOutputStream **ost_table, int nb_ostreams,
1054 int is_last_report)
1055 {
1056 char buf[1024];
1057 AVOutputStream *ost;
1058 AVFormatContext *oc, *os;
1059 int64_t total_size;
1060 AVCodecContext *enc;
1061 int frame_number, vid, i;
1062 double bitrate, ti1, pts;
1063 static int64_t last_time = -1;
1064 static int qp_histogram[52];
1065
1066 if (!is_last_report) {
1067 int64_t cur_time;
1068 /* display the report every 0.5 seconds */
1069 cur_time = av_gettime();
1070 if (last_time == -1) {
1071 last_time = cur_time;
1072 return;
1073 }
1074 if ((cur_time - last_time) < 500000)
1075 return;
1076 last_time = cur_time;
1077 }
1078
1079
1080 oc = output_files[0];
1081
1082 total_size = url_fsize(oc->pb);
1083 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1084 total_size= url_ftell(oc->pb);
1085
1086 buf[0] = '\0';
1087 ti1 = 1e10;
1088 vid = 0;
1089 for(i=0;i<nb_ostreams;i++) {
1090 ost = ost_table[i];
1091 os = output_files[ost->file_index];
1092 enc = ost->st->codec;
1093 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1094 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1095 !ost->st->stream_copy ?
1096 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1097 }
1098 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1099 float t = (av_gettime()-timer_start) / 1000000.0;
1100
1101 frame_number = ost->frame_number;
1102 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1103 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1104 !ost->st->stream_copy ?
1105 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1106 if(is_last_report)
1107 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1108 if(qp_hist){
1109 int j;
1110 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1111 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1112 qp_histogram[qp]++;
1113 for(j=0; j<32; j++)
1114 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1115 }
1116 if (enc->flags&CODEC_FLAG_PSNR){
1117 int j;
1118 double error, error_sum=0;
1119 double scale, scale_sum=0;
1120 char type[3]= {'Y','U','V'};
1121 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1122 for(j=0; j<3; j++){
1123 if(is_last_report){
1124 error= enc->error[j];
1125 scale= enc->width*enc->height*255.0*255.0*frame_number;
1126 }else{
1127 error= enc->coded_frame->error[j];
1128 scale= enc->width*enc->height*255.0*255.0;
1129 }
1130 if(j) scale/=4;
1131 error_sum += error;
1132 scale_sum += scale;
1133 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1134 }
1135 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1136 }
1137 vid = 1;
1138 }
1139 /* compute min output value */
1140 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1141 if ((pts < ti1) && (pts > 0))
1142 ti1 = pts;
1143 }
1144 if (ti1 < 0.01)
1145 ti1 = 0.01;
1146
1147 if (verbose || is_last_report) {
1148 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1149
1150 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1151 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1152 (double)total_size / 1024, ti1, bitrate);
1153
1154 if (verbose > 1)
1155 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1156 nb_frames_dup, nb_frames_drop);
1157
1158 if (verbose >= 0)
1159 fprintf(stderr, "%s \r", buf);
1160
1161 fflush(stderr);
1162 }
1163
1164 if (is_last_report && verbose >= 0){
1165 int64_t raw= audio_size + video_size + extra_size;
1166 fprintf(stderr, "\n");
1167 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1168 video_size/1024.0,
1169 audio_size/1024.0,
1170 extra_size/1024.0,
1171 100.0*(total_size - raw)/raw
1172 );
1173 }
1174 }
1175
1176 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1177 static int output_packet(AVInputStream *ist, int ist_index,
1178 AVOutputStream **ost_table, int nb_ostreams,
1179 const AVPacket *pkt)
1180 {
1181 AVFormatContext *os;
1182 AVOutputStream *ost;
1183 uint8_t *ptr;
1184 int len, ret, i;
1185 uint8_t *data_buf;
1186 int data_size, got_picture;
1187 AVFrame picture;
1188 void *buffer_to_free;
1189 static unsigned int samples_size= 0;
1190 static short *samples= NULL;
1191 AVSubtitle subtitle, *subtitle_to_free;
1192 int got_subtitle;
1193
1194 if(ist->next_pts == AV_NOPTS_VALUE)
1195 ist->next_pts= ist->pts;
1196
1197 if (pkt == NULL) {
1198 /* EOF handling */
1199 ptr = NULL;
1200 len = 0;
1201 goto handle_eof;
1202 }
1203
1204 if(pkt->dts != AV_NOPTS_VALUE)
1205 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1206
1207 len = pkt->size;
1208 ptr = pkt->data;
1209
1210 //while we have more to decode or while the decoder did output something on EOF
1211 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1212 handle_eof:
1213 ist->pts= ist->next_pts;
1214
1215 if(len && len != pkt->size && verbose>0)
1216 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1217
1218 /* decode the packet if needed */
1219 data_buf = NULL; /* fail safe */
1220 data_size = 0;
1221 subtitle_to_free = NULL;
1222 if (ist->decoding_needed) {
1223 switch(ist->st->codec->codec_type) {
1224 case CODEC_TYPE_AUDIO:{
1225 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1226 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1227 av_free(samples);
1228 samples= av_malloc(samples_size);
1229 }
1230 data_size= samples_size;
1231 /* XXX: could avoid copy if PCM 16 bits with same
1232 endianness as CPU */
1233 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1234 ptr, len);
1235 if (ret < 0)
1236 goto fail_decode;
1237 ptr += ret;
1238 len -= ret;
1239 /* Some bug in mpeg audio decoder gives */
1240 /* data_size < 0, it seems they are overflows */
1241 if (data_size <= 0) {
1242 /* no audio frame */
1243 continue;
1244 }
1245 data_buf = (uint8_t *)samples;
1246 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1247 (ist->st->codec->sample_rate * ist->st->codec->channels);
1248 break;}
1249 case CODEC_TYPE_VIDEO:
1250 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1251 /* XXX: allocate picture correctly */
1252 avcodec_get_frame_defaults(&picture);
1253
1254 ret = avcodec_decode_video(ist->st->codec,
1255 &picture, &got_picture, ptr, len);
1256 ist->st->quality= picture.quality;
1257 if (ret < 0)
1258 goto fail_decode;
1259 if (!got_picture) {
1260 /* no picture yet */
1261 goto discard_packet;
1262 }
1263 if (ist->st->codec->time_base.num != 0) {
1264 ist->next_pts += ((int64_t)AV_TIME_BASE *
1265 ist->st->codec->time_base.num) /
1266 ist->st->codec->time_base.den;
1267 }
1268 len = 0;
1269 break;
1270 case CODEC_TYPE_SUBTITLE:
1271 ret = avcodec_decode_subtitle(ist->st->codec,
1272 &subtitle, &got_subtitle, ptr, len);
1273 if (ret < 0)
1274 goto fail_decode;
1275 if (!got_subtitle) {
1276 goto discard_packet;
1277 }
1278 subtitle_to_free = &subtitle;
1279 len = 0;
1280 break;
1281 default:
1282 goto fail_decode;
1283 }
1284 } else {
1285 switch(ist->st->codec->codec_type) {
1286 case CODEC_TYPE_AUDIO:
1287 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1288 ist->st->codec->sample_rate;
1289 break;
1290 case CODEC_TYPE_VIDEO:
1291 if (ist->st->codec->time_base.num != 0) {
1292 ist->next_pts += ((int64_t)AV_TIME_BASE *
1293 ist->st->codec->time_base.num) /
1294 ist->st->codec->time_base.den;
1295 }
1296 break;
1297 }
1298 data_buf = ptr;
1299 data_size = len;
1300 ret = len;
1301 len = 0;
1302 }
1303
1304 buffer_to_free = NULL;
1305 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1306 pre_process_video_frame(ist, (AVPicture *)&picture,
1307 &buffer_to_free);
1308 }
1309
1310 // preprocess audio (volume)
1311 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1312 if (audio_volume != 256) {
1313 short *volp;
1314 volp = samples;
1315 for(i=0;i<(data_size / sizeof(short));i++) {
1316 int v = ((*volp) * audio_volume + 128) >> 8;
1317 if (v < -32768) v = -32768;
1318 if (v > 32767) v = 32767;
1319 *volp++ = v;
1320 }
1321 }
1322 }
1323
1324 /* frame rate emulation */
1325 if (rate_emu) {
1326 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1327 int64_t now = av_gettime() - ist->start;
1328 if (pts > now)
1329 usleep(pts - now);
1330 }
1331
1332 /* if output time reached then transcode raw format,
1333 encode packets and output them */
1334 if (start_time == 0 || ist->pts >= start_time)
1335 for(i=0;i<nb_ostreams;i++) {
1336 int frame_size;
1337
1338 ost = ost_table[i];
1339 if (ost->source_index == ist_index) {
1340 os = output_files[ost->file_index];
1341
1342 #if 0
1343 printf("%d: got pts=%0.3f %0.3f\n", i,
1344 (double)pkt->pts / AV_TIME_BASE,
1345 ((double)ist->pts / AV_TIME_BASE) -
1346 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1347 #endif
1348 /* set the input output pts pairs */
1349 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1350
1351 if (ost->encoding_needed) {
1352 switch(ost->st->codec->codec_type) {
1353 case CODEC_TYPE_AUDIO:
1354 do_audio_out(os, ost, ist, data_buf, data_size);
1355 break;
1356 case CODEC_TYPE_VIDEO:
1357 do_video_out(os, ost, ist, &picture, &frame_size);
1358 if (vstats_filename && frame_size)
1359 do_video_stats(os, ost, frame_size);
1360 break;
1361 case CODEC_TYPE_SUBTITLE:
1362 do_subtitle_out(os, ost, ist, &subtitle,
1363 pkt->pts);
1364 break;
1365 default:
1366 abort();
1367 }
1368 } else {
1369 AVFrame avframe; //FIXME/XXX remove this
1370 AVPacket opkt;
1371 av_init_packet(&opkt);
1372
1373 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1374 continue;
1375
1376 /* no reencoding needed : output the packet directly */
1377 /* force the input stream PTS */
1378
1379 avcodec_get_frame_defaults(&avframe);
1380 ost->st->codec->coded_frame= &avframe;
1381 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1382
1383 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1384 audio_size += data_size;
1385 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1386 video_size += data_size;
1387 ost->sync_opts++;
1388 }
1389
1390 opkt.stream_index= ost->index;
1391 if(pkt->pts != AV_NOPTS_VALUE)
1392 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1393 else
1394 opkt.pts= AV_NOPTS_VALUE;
1395
1396 if (pkt->dts == AV_NOPTS_VALUE)
1397 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1398 else
1399 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1400
1401 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1402 opkt.flags= pkt->flags;
1403
1404 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1405 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1406 opkt.destruct= av_destruct_packet;
1407
1408 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1409 ost->st->codec->frame_number++;
1410 ost->frame_number++;
1411 av_free_packet(&opkt);
1412 }
1413 }
1414 }
1415 av_free(buffer_to_free);
1416 /* XXX: allocate the subtitles in the codec ? */
1417 if (subtitle_to_free) {
1418 if (subtitle_to_free->rects != NULL) {
1419 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1420 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1421 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1422 av_freep(&subtitle_to_free->rects[i]);
1423 }
1424 av_freep(&subtitle_to_free->rects);
1425 }
1426 subtitle_to_free->num_rects = 0;
1427 subtitle_to_free = NULL;
1428 }
1429 }
1430 discard_packet:
1431 if (pkt == NULL) {
1432 /* EOF handling */
1433
1434 for(i=0;i<nb_ostreams;i++) {
1435 ost = ost_table[i];
1436 if (ost->source_index == ist_index) {
1437 AVCodecContext *enc= ost->st->codec;
1438 os = output_files[ost->file_index];
1439
1440 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1441 continue;
1442 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1443 continue;
1444
1445 if (ost->encoding_needed) {
1446 for(;;) {
1447 AVPacket pkt;
1448 int fifo_bytes;
1449 av_init_packet(&pkt);
1450 pkt.stream_index= ost->index;
1451
1452 switch(ost->st->codec->codec_type) {
1453 case CODEC_TYPE_AUDIO:
1454 fifo_bytes = av_fifo_size(&ost->fifo);
1455 ret = 0;
1456 /* encode any samples remaining in fifo */
1457 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1458 int fs_tmp = enc->frame_size;
1459 enc->frame_size = fifo_bytes / (2 * enc->channels);
1460 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1461 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1462 enc->frame_size = fs_tmp;
1463 }
1464 if(ret <= 0) {
1465 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1466 }
1467 if (ret < 0) {
1468 fprintf(stderr, "Audio encoding failed\n");
1469 av_exit(1);
1470 }
1471 audio_size += ret;
1472 pkt.flags |= PKT_FLAG_KEY;
1473 break;
1474 case CODEC_TYPE_VIDEO:
1475 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1476 if (ret < 0) {
1477 fprintf(stderr, "Video encoding failed\n");
1478 av_exit(1);
1479 }
1480 video_size += ret;
1481 if(enc->coded_frame && enc->coded_frame->key_frame)
1482 pkt.flags |= PKT_FLAG_KEY;
1483 if (ost->logfile && enc->stats_out) {
1484 fprintf(ost->logfile, "%s", enc->stats_out);
1485 }
1486 break;
1487 default:
1488 ret=-1;
1489 }
1490
1491 if(ret<=0)
1492 break;
1493 pkt.data= bit_buffer;
1494 pkt.size= ret;
1495 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1496 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1497 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1498 }
1499 }
1500 }
1501 }
1502 }
1503
1504 return 0;
1505 fail_decode:
1506 return -1;
1507 }
1508
1509 static void print_sdp(AVFormatContext **avc, int n)
1510 {
1511 char sdp[2048];
1512
1513 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1514 printf("SDP:\n%s\n", sdp);
1515 fflush(stdout);
1516 }
1517
1518 static int stream_index_from_inputs(AVFormatContext **input_files,
1519 int nb_input_files,
1520 AVInputFile *file_table,
1521 AVInputStream **ist_table,
1522 enum CodecType type,
1523 int programid)
1524 {
1525 int p, q, z;
1526 for(z=0; z<nb_input_files; z++) {
1527 AVFormatContext *ic = input_files[z];
1528 for(p=0; p<ic->nb_programs; p++) {
1529 AVProgram *program = ic->programs[p];
1530 if(program->id != programid)
1531 continue;
1532 for(q=0; q<program->nb_stream_indexes; q++) {
1533 int sidx = program->stream_index[q];
1534 int ris = file_table[z].ist_index + sidx;
1535 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1536 return ris;
1537 }
1538 }
1539 }
1540
1541 return -1;
1542 }
1543
1544 /*
1545 * The following code is the main loop of the file converter
1546 */
1547 static int av_encode(AVFormatContext **output_files,
1548 int nb_output_files,
1549 AVFormatContext **input_files,
1550 int nb_input_files,
1551 AVStreamMap *stream_maps, int nb_stream_maps)
1552 {
1553 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1554 AVFormatContext *is, *os;
1555 AVCodecContext *codec, *icodec;
1556 AVOutputStream *ost, **ost_table = NULL;
1557 AVInputStream *ist, **ist_table = NULL;
1558 AVInputFile *file_table;
1559 int key;
1560 int want_sdp = 1;
1561
1562 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1563 if (!file_table)
1564 goto fail;
1565
1566 /* input stream init */
1567 j = 0;
1568 for(i=0;i<nb_input_files;i++) {
1569 is = input_files[i];
1570 file_table[i].ist_index = j;
1571 file_table[i].nb_streams = is->nb_streams;
1572 j += is->nb_streams;
1573 }
1574 nb_istreams = j;
1575
1576 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1577 if (!ist_table)
1578 goto fail;
1579
1580 for(i=0;i<nb_istreams;i++) {
1581 ist = av_mallocz(sizeof(AVInputStream));
1582 if (!ist)
1583 goto fail;
1584 ist_table[i] = ist;
1585 }
1586 j = 0;
1587 for(i=0;i<nb_input_files;i++) {
1588 is = input_files[i];
1589 for(k=0;k<is->nb_streams;k++) {
1590 ist = ist_table[j++];
1591 ist->st = is->streams[k];
1592 ist->file_index = i;
1593 ist->index = k;
1594 ist->discard = 1; /* the stream is discarded by default
1595 (changed later) */
1596
1597 if (rate_emu) {
1598 ist->start = av_gettime();
1599 }
1600 }
1601 }
1602
1603 /* output stream init */
1604 nb_ostreams = 0;
1605 for(i=0;i<nb_output_files;i++) {
1606 os = output_files[i];
1607 if (!os->nb_streams) {
1608 dump_format(output_files[i], i, output_files[i]->filename, 1);
1609 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1610 av_exit(1);
1611 }
1612 nb_ostreams += os->nb_streams;
1613 }
1614 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1615 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1616 av_exit(1);
1617 }
1618
1619 /* Sanity check the mapping args -- do the input files & streams exist? */
1620 for(i=0;i<nb_stream_maps;i++) {
1621 int fi = stream_maps[i].file_index;
1622 int si = stream_maps[i].stream_index;
1623
1624 if (fi < 0 || fi > nb_input_files - 1 ||
1625 si < 0 || si > file_table[fi].nb_streams - 1) {
1626 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1627 av_exit(1);
1628 }
1629 fi = stream_maps[i].sync_file_index;
1630 si = stream_maps[i].sync_stream_index;
1631 if (fi < 0 || fi > nb_input_files - 1 ||
1632 si < 0 || si > file_table[fi].nb_streams - 1) {
1633 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1634 av_exit(1);
1635 }
1636 }
1637
1638 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1639 if (!ost_table)
1640 goto fail;
1641 for(i=0;i<nb_ostreams;i++) {
1642 ost = av_mallocz(sizeof(AVOutputStream));
1643 if (!ost)
1644 goto fail;
1645 ost_table[i] = ost;
1646 }
1647
1648 n = 0;
1649 for(k=0;k<nb_output_files;k++) {
1650 os = output_files[k];
1651 for(i=0;i<os->nb_streams;i++,n++) {
1652 int found;
1653 ost = ost_table[n];
1654 ost->file_index = k;
1655 ost->index = i;
1656 ost->st = os->streams[i];
1657 if (nb_stream_maps > 0) {
1658 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1659 stream_maps[n].stream_index;
1660
1661 /* Sanity check that the stream types match */
1662 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1663 int i= ost->file_index;
1664 dump_format(output_files[i], i, output_files[i]->filename, 1);
1665 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1666 stream_maps[n].file_index, stream_maps[n].stream_index,
1667 ost->file_index, ost->index);
1668 av_exit(1);
1669 }
1670
1671 } else {
1672 if(opt_programid) {
1673 found = 0;
1674 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1675 if(j != -1) {
1676 ost->source_index = j;
1677 found = 1;
1678 }
1679 } else {
1680 /* get corresponding input stream index : we select the first one with the right type */
1681 found = 0;
1682 for(j=0;j<nb_istreams;j++) {
1683 ist = ist_table[j];
1684 if (ist->discard &&
1685 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1686 ost->source_index = j;
1687 found = 1;
1688 break;
1689 }
1690 }
1691 }
1692
1693 if (!found) {
1694 if(! opt_programid) {
1695 /* try again and reuse existing stream */
1696 for(j=0;j<nb_istreams;j++) {
1697 ist = ist_table[j];
1698 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1699 ost->source_index = j;
1700 found = 1;
1701 }
1702 }
1703 }
1704 if (!found) {
1705 int i= ost->file_index;
1706 dump_format(output_files[i], i, output_files[i]->filename, 1);
1707 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1708 ost->file_index, ost->index);
1709 av_exit(1);
1710 }
1711 }
1712 }
1713 ist = ist_table[ost->source_index];
1714 ist->discard = 0;
1715 ost->sync_ist = (nb_stream_maps > 0) ?
1716 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1717 stream_maps[n].sync_stream_index] : ist;
1718 }
1719 }
1720
1721 /* for each output stream, we compute the right encoding parameters */
1722 for(i=0;i<nb_ostreams;i++) {
1723 ost = ost_table[i];
1724 os = output_files[ost->file_index];
1725 ist = ist_table[ost->source_index];
1726
1727 codec = ost->st->codec;
1728 icodec = ist->st->codec;
1729
1730 if (!ost->st->language[0])
1731 av_strlcpy(ost->st->language, ist->st->language,
1732 sizeof(ost->st->language));
1733
1734 ost->st->disposition = ist->st->disposition;
1735
1736 if (ost->st->stream_copy) {
1737 /* if stream_copy is selected, no need to decode or encode */
1738 codec->codec_id = icodec->codec_id;
1739 codec->codec_type = icodec->codec_type;
1740
1741 if(!codec->codec_tag){
1742 if( !os->oformat->codec_tag
1743 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1744 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1745 codec->codec_tag = icodec->codec_tag;
1746 }
1747
1748 codec->bit_rate = icodec->bit_rate;
1749 codec->extradata= icodec->extradata;
1750 codec->extradata_size= icodec->extradata_size;
1751 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1752 codec->time_base = icodec->time_base;
1753 else
1754 codec->time_base = ist->st->time_base;
1755 switch(codec->codec_type) {
1756 case CODEC_TYPE_AUDIO:
1757 if(audio_volume != 256) {
1758 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1759 av_exit(1);
1760 }
1761 codec->channel_layout = icodec->channel_layout;
1762 codec->sample_rate = icodec->sample_rate;
1763 codec->channels = icodec->channels;
1764 codec->frame_size = icodec->frame_size;
1765 codec->block_align= icodec->block_align;
1766 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1767 codec->block_align= 0;
1768 if(codec->codec_id == CODEC_ID_AC3)
1769 codec->block_align= 0;
1770 break;
1771 case CODEC_TYPE_VIDEO:
1772 if(using_vhook) {
1773 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1774 av_exit(1);
1775 }
1776 codec->pix_fmt = icodec->pix_fmt;
1777 codec->width = icodec->width;
1778 codec->height = icodec->height;
1779 codec->has_b_frames = icodec->has_b_frames;
1780 break;
1781 case CODEC_TYPE_SUBTITLE:
1782 codec->width = icodec->width;
1783 codec->height = icodec->height;
1784 break;
1785 default:
1786 abort();
1787 }
1788 } else {
1789 switch(codec->codec_type) {
1790 case CODEC_TYPE_AUDIO:
1791 if (av_fifo_init(&ost->fifo, 1024))
1792 goto fail;
1793 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1794 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1795 icodec->request_channels = codec->channels;
1796 ist->decoding_needed = 1;
1797 ost->encoding_needed = 1;
1798 break;
1799 case CODEC_TYPE_VIDEO:
1800 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1801 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1802 ost->video_resample = ((codec->width != icodec->width -
1803 (frame_leftBand + frame_rightBand) +
1804 (frame_padleft + frame_padright)) ||
1805 (codec->height != icodec->height -
1806 (frame_topBand + frame_bottomBand) +
1807 (frame_padtop + frame_padbottom)) ||
1808 (codec->pix_fmt != icodec->pix_fmt));
1809 if (ost->video_crop) {
1810 ost->topBand = frame_topBand;
1811 ost->leftBand = frame_leftBand;
1812 }
1813 if (ost->video_pad) {
1814 ost->padtop = frame_padtop;
1815 ost->padleft = frame_padleft;
1816 ost->padbottom = frame_padbottom;
1817 ost->padright = frame_padright;
1818 if (!ost->video_resample) {
1819 avcodec_get_frame_defaults(&ost->pict_tmp);
1820 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1821 codec->width, codec->height))
1822 goto fail;
1823 }
1824 }
1825 if (ost->video_resample) {
1826 avcodec_get_frame_defaults(&ost->pict_tmp);
1827 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1828 codec->width, codec->height)) {
1829 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1830 av_exit(1);
1831 }
1832 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1833 ost->img_resample_ctx = sws_getContext(
1834 icodec->width - (frame_leftBand + frame_rightBand),
1835 icodec->height - (frame_topBand + frame_bottomBand),
1836 icodec->pix_fmt,
1837 codec->width - (frame_padleft + frame_padright),
1838 codec->height - (frame_padtop + frame_padbottom),
1839 codec->pix_fmt,
1840 sws_flags, NULL, NULL, NULL);
1841 if (ost->img_resample_ctx == NULL) {
1842 fprintf(stderr, "Cannot get resampling context\n");
1843 av_exit(1);
1844 }
1845 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1846 }
1847 ost->encoding_needed = 1;
1848 ist->decoding_needed = 1;
1849 break;
1850 case CODEC_TYPE_SUBTITLE:
1851 ost->encoding_needed = 1;
1852 ist->decoding_needed = 1;
1853 break;
1854 default:
1855 abort();
1856 break;
1857 }
1858 /* two pass mode */
1859 if (ost->encoding_needed &&
1860 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1861 char logfilename[1024];
1862 FILE *f;
1863 int size;
1864 char *logbuffer;
1865
1866 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1867 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1868 i);
1869 if (codec->flags & CODEC_FLAG_PASS1) {
1870 f = fopen(logfilename, "w");
1871 if (!f) {
1872 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1873 av_exit(1);
1874 }
1875 ost->logfile = f;
1876 } else {
1877 /* read the log file */
1878 f = fopen(logfilename, "r");
1879 if (!f) {
1880 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
1881 av_exit(1);
1882 }
1883 fseek(f, 0, SEEK_END);
1884 size = ftell(f);
1885 fseek(f, 0, SEEK_SET);
1886 logbuffer = av_malloc(size + 1);
1887 if (!logbuffer) {
1888 fprintf(stderr, "Could not allocate log buffer\n");
1889 av_exit(1);
1890 }
1891 size = fread(logbuffer, 1, size, f);
1892 fclose(f);
1893 logbuffer[size] = '\0';
1894 codec->stats_in = logbuffer;
1895 }
1896 }
1897 }
1898 if(codec->codec_type == CODEC_TYPE_VIDEO){
1899 int size= codec->width * codec->height;
1900 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1901 }
1902 }
1903
1904 if (!bit_buffer)
1905 bit_buffer = av_malloc(bit_buffer_size);
1906 if (!bit_buffer)
1907 goto fail;
1908
1909 /* dump the file output parameters - cannot be done before in case
1910 of stream copy */
1911 for(i=0;i<nb_output_files;i++) {
1912 dump_format(output_files[i], i, output_files[i]->filename, 1);
1913 }
1914
1915 /* dump the stream mapping */
1916 if (verbose >= 0) {
1917 fprintf(stderr, "Stream mapping:\n");
1918 for(i=0;i<nb_ostreams;i++) {
1919 ost = ost_table[i];
1920 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1921 ist_table[ost->source_index]->file_index,
1922 ist_table[ost->source_index]->index,
1923 ost->file_index,
1924 ost->index);
1925 if (ost->sync_ist != ist_table[ost->source_index])
1926 fprintf(stderr, " [sync #%d.%d]",
1927 ost->sync_ist->file_index,
1928 ost->sync_ist->index);
1929 fprintf(stderr, "\n");
1930 }
1931 }
1932
1933 /* open each encoder */
1934 for(i=0;i<nb_ostreams;i++) {
1935 ost = ost_table[i];
1936 if (ost->encoding_needed) {
1937 AVCodec *codec = output_codecs[i];
1938 if (!codec)
1939 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1940 if (!codec) {
1941 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1942 ost->file_index, ost->index);
1943 av_exit(1);
1944 }
1945 if (avcodec_open(ost->st->codec, codec) < 0) {
1946 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1947 ost->file_index, ost->index);
1948 av_exit(1);
1949 }
1950 extra_size += ost->st->codec->extradata_size;
1951 }
1952 }
1953
1954 /* open each decoder */
1955 for(i=0;i<nb_istreams;i++) {
1956 ist = ist_table[i];
1957 if (ist->decoding_needed) {
1958 AVCodec *codec = input_codecs[i];
1959 if (!codec)
1960 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1961 if (!codec) {
1962 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1963 ist->st->codec->codec_id, ist->file_index, ist->index);
1964 av_exit(1);
1965 }
1966 if (avcodec_open(ist->st->codec, codec) < 0) {
1967 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1968 ist->file_index, ist->index);
1969 av_exit(1);
1970 }
1971 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1972 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1973 }
1974 }
1975
1976 /* init pts */
1977 for(i=0;i<nb_istreams;i++) {
1978 ist = ist_table[i];
1979 is = input_files[ist->file_index];
1980 ist->pts = 0;
1981 ist->next_pts = AV_NOPTS_VALUE;
1982 ist->is_start = 1;
1983 }
1984
1985 /* set meta data information from input file if required */
1986 for (i=0;i<nb_meta_data_maps;i++) {
1987 AVFormatContext *out_file;
1988 AVFormatContext *in_file;
1989
1990 int out_file_index = meta_data_maps[i].out_file;
1991 int in_file_index = meta_data_maps[i].in_file;
1992 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1993 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1994 ret = AVERROR(EINVAL);
1995 goto fail;
1996 }
1997 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1998 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1999 ret = AVERROR(EINVAL);
2000 goto fail;
2001 }
2002
2003 out_file = output_files[out_file_index];
2004 in_file = input_files[in_file_index];
2005
2006 strcpy(out_file->title, in_file->title);
2007 strcpy(out_file->author, in_file->author);
2008 strcpy(out_file->copyright, in_file->copyright);
2009 strcpy(out_file->comment, in_file->comment);
2010 strcpy(out_file->album, in_file->album);
2011 out_file->year = in_file->year;
2012 out_file->track = in_file->track;
2013 strcpy(out_file->genre, in_file->genre);
2014 }
2015
2016 /* open files and write file headers */
2017 for(i=0;i<nb_output_files;i++) {
2018 os = output_files[i];
2019 if (av_write_header(os) < 0) {
2020 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
2021 ret = AVERROR(EINVAL);
2022 goto fail;
2023 }
2024 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2025 want_sdp = 0;
2026 }
2027 }
2028 if (want_sdp) {
2029 print_sdp(output_files, nb_output_files);
2030 }
2031
2032 if (!using_stdin && verbose >= 0) {
2033 fprintf(stderr, "Press [q] to stop encoding\n");
2034 url_set_interrupt_cb(decode_interrupt_cb);
2035 }
2036 term_init();
2037
2038 key = -1;
2039 timer_start = av_gettime();
2040
2041 for(; received_sigterm == 0;) {
2042 int file_index, ist_index;
2043 AVPacket pkt;
2044 double ipts_min;
2045 double opts_min;
2046
2047 redo:
2048 ipts_min= 1e100;
2049 opts_min= 1e100;
2050 /* if 'q' pressed, exits */
2051 if (!using_stdin) {
2052 if (q_pressed)
2053 break;
2054 /* read_key() returns 0 on EOF */
2055 key = read_key();
2056 if (key == 'q')
2057 break;
2058 }
2059
2060 /* select the stream that we must read now by looking at the
2061 smallest output pts */
2062 file_index = -1;
2063 for(i=0;i<nb_ostreams;i++) {
2064 double ipts, opts;
2065 ost = ost_table[i];
2066 os = output_files[ost->file_index];
2067 ist = ist_table[ost->source_index];
2068 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2069 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2070 else
2071 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2072 ipts = (double)ist->pts;
2073 if (!file_table[ist->file_index].eof_reached){
2074 if(ipts < ipts_min) {
2075 ipts_min = ipts;
2076 if(input_sync ) file_index = ist->file_index;
2077 }
2078 if(opts < opts_min) {
2079 opts_min = opts;
2080 if(!input_sync) file_index = ist->file_index;
2081 }
2082 }
2083 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2084 file_index= -1;
2085 break;
2086 }
2087 }
2088 /* if none, if is finished */
2089 if (file_index < 0) {
2090 break;
2091 }
2092
2093 /* finish if recording time exhausted */
2094 if (opts_min >= (recording_time / 1000000.0))
2095 break;
2096
2097 /* finish if limit size exhausted */
2098 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2099 break;
2100
2101 /* read a frame from it and output it in the fifo */
2102 is = input_files[file_index];
2103 ret= av_read_frame(is, &pkt);
2104 if(ret == AVERROR(EAGAIN) && strcmp(is->iformat->name, "ffm"))
2105 continue;
2106 if (ret < 0) {
2107 file_table[file_index].eof_reached = 1;
2108 if (opt_shortest)
2109 break;
2110 else
2111 continue;
2112 }
2113
2114 if (do_pkt_dump) {
2115 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2116 }
2117 /* the following test is needed in case new streams appear
2118 dynamically in stream : we ignore them */
2119 if (pkt.stream_index >= file_table[file_index].nb_streams)
2120 goto discard_packet;
2121 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2122 ist = ist_table[ist_index];
2123 if (ist->discard)
2124 goto discard_packet;
2125
2126 if (pkt.dts != AV_NOPTS_VALUE)
2127 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2128 if (pkt.pts != AV_NOPTS_VALUE)
2129 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2130
2131 if(input_files_ts_scale[file_index][pkt.stream_index]){
2132 if(pkt.pts != AV_NOPTS_VALUE)
2133 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2134 if(pkt.dts != AV_NOPTS_VALUE)
2135 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2136 }
2137
2138 // 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);
2139 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2140 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2141 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2142 int64_t delta= pkt_dts - ist->next_pts;
2143 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2144 input_files_ts_offset[ist->file_index]-= delta;
2145 if (verbose > 2)
2146 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2147 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2148 if(pkt.pts != AV_NOPTS_VALUE)
2149 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2150 }
2151 }
2152
2153 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2154 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2155
2156 if (verbose >= 0)
2157 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2158 ist->file_index, ist->index);
2159 if (exit_on_error)
2160 av_exit(1);
2161 av_free_packet(&pkt);
2162 goto redo;
2163 }
2164
2165 discard_packet:
2166 av_free_packet(&pkt);
2167
2168 /* dump report by using the output first video and audio streams */
2169 print_report(output_files, ost_table, nb_ostreams, 0);
2170 }
2171
2172 /* at the end of stream, we must flush the decoder buffers */
2173 for(i=0;i<nb_istreams;i++) {
2174 ist = ist_table[i];
2175 if (ist->decoding_needed) {
2176 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2177 }
2178 }
2179
2180 term_exit();
2181
2182 /* write the trailer if needed and close file */
2183 for(i=0;i<nb_output_files;i++) {
2184 os = output_files[i];
2185 av_write_trailer(os);
2186 }
2187
2188 /* dump report by using the first video and audio streams */
2189 print_report(output_files, ost_table, nb_ostreams, 1);
2190
2191 /* close each encoder */
2192 for(i=0;i<nb_ostreams;i++) {
2193 ost = ost_table[i];
2194 if (ost->encoding_needed) {
2195 av_freep(&ost->st->codec->stats_in);
2196 avcodec_close(ost->st->codec);
2197 }
2198 }
2199
2200 /* close each decoder */
2201 for(i=0;i<nb_istreams;i++) {
2202 ist = ist_table[i];
2203 if (ist->decoding_needed) {
2204 avcodec_close(ist->st->codec);
2205 }
2206 }
2207
2208 /* finished ! */
2209
2210 ret = 0;
2211 fail1:
2212 av_freep(&bit_buffer);
2213 av_free(file_table);
2214
2215 if (ist_table) {
2216 for(i=0;i<nb_istreams;i++) {
2217 ist = ist_table[i];
2218 av_free(ist);
2219 }
2220 av_free(ist_table);
2221 }
2222 if (ost_table) {
2223 for(i=0;i<nb_ostreams;i++) {
2224 ost = ost_table[i];
2225 if (ost) {
2226 if (ost->logfile) {
2227 fclose(ost->logfile);
2228 ost->logfile = NULL;
2229 }
2230 av_fifo_free(&ost->fifo); /* works even if fifo is not
2231 initialized but set to zero */
2232 av_free(ost->pict_tmp.data[0]);
2233 if (ost->video_resample)
2234 sws_freeContext(ost->img_resample_ctx);
2235 if (ost->resample)
2236 audio_resample_close(ost->resample);
2237 if (ost->reformat_ctx)
2238 av_audio_convert_free(ost->reformat_ctx);
2239 av_free(ost);
2240 }
2241 }
2242 av_free(ost_table);
2243 }
2244 return ret;
2245 fail:
2246 ret = AVERROR(ENOMEM);
2247 goto fail1;
2248 }
2249
2250 #if 0
2251 int file_read(const char *filename)
2252 {
2253 URLContext *h;
2254 unsigned char buffer[1024];
2255 int len, i;
2256
2257 if (url_open(&h, filename, O_RDONLY) < 0) {
2258 printf("could not open '%s'\n", filename);
2259 return -1;
2260 }
2261 for(;;) {
2262 len = url_read(h, buffer, sizeof(buffer));
2263 if (len <= 0)
2264 break;
2265 for(i=0;i<len;i++) putchar(buffer[i]);
2266 }
2267 url_close(h);
2268 return 0;
2269 }
2270 #endif
2271
2272 static void opt_format(const char *arg)
2273 {
2274 /* compatibility stuff for pgmyuv */
2275 if (!strcmp(arg, "pgmyuv")) {
2276 pgmyuv_compatibility_hack=1;
2277 // opt_image_format(arg);
2278 arg = "image2";
2279 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2280 }
2281
2282 file_iformat = av_find_input_format(arg);
2283 file_oformat = guess_format(arg, NULL, NULL);
2284 if (!file_iformat && !file_oformat) {
2285 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2286 av_exit(1);
2287 }
2288 }
2289
2290 static void opt_video_rc_override_string(const char *arg)
2291 {
2292 video_rc_override_string = arg;
2293 }
2294
2295 static int opt_me_threshold(const char *opt, const char *arg)
2296 {
2297 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2298 return 0;
2299 }
2300
2301 static int opt_verbose(const char *opt, const char *arg)
2302 {
2303 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2304 av_log_set_level(verbose);
2305 return 0;
2306 }
2307
2308 static int opt_frame_rate(const char *opt, const char *arg)
2309 {
2310 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2311 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2312 av_exit(1);
2313 }
2314 return 0;
2315 }
2316
2317 static int opt_bitrate(const char *opt, const char *arg)
2318 {
2319 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2320
2321 opt_default(opt, arg);
2322
2323 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2324 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2325
2326 return 0;
2327 }
2328
2329 static void opt_frame_crop_top(const char *arg)
2330 {
2331 frame_topBand = atoi(arg);
2332 if (frame_topBand < 0) {
2333 fprintf(stderr, "Incorrect top crop size\n");
2334 av_exit(1);
2335 }
2336 if ((frame_topBand % 2) != 0) {
2337 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2338 av_exit(1);
2339 }
2340 if ((frame_topBand) >= frame_height){
2341 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2342 av_exit(1);
2343 }
2344 frame_height -= frame_topBand;
2345 }
2346
2347 static void opt_frame_crop_bottom(const char *arg)
2348 {
2349 frame_bottomBand = atoi(arg);
2350 if (frame_bottomBand < 0) {
2351 fprintf(stderr, "Incorrect bottom crop size\n");
2352 av_exit(1);
2353 }
2354 if ((frame_bottomBand % 2) != 0) {
2355 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2356 av_exit(1);
2357 }
2358 if ((frame_bottomBand) >= frame_height){
2359 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2360 av_exit(1);
2361 }
2362 frame_height -= frame_bottomBand;
2363 }
2364
2365 static void opt_frame_crop_left(const char *arg)
2366 {
2367 frame_leftBand = atoi(arg);
2368 if (frame_leftBand < 0) {
2369 fprintf(stderr, "Incorrect left crop size\n");
2370 av_exit(1);
2371 }
2372 if ((frame_leftBand % 2) != 0) {
2373 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2374 av_exit(1);
2375 }
2376 if ((frame_leftBand) >= frame_width){
2377 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2378 av_exit(1);
2379 }
2380 frame_width -= frame_leftBand;
2381 }
2382
2383 static void opt_frame_crop_right(const char *arg)
2384 {
2385 frame_rightBand = atoi(arg);
2386 if (frame_rightBand < 0) {
2387 fprintf(stderr, "Incorrect right crop size\n");
2388 av_exit(1);
2389 }
2390 if ((frame_rightBand % 2) != 0) {
2391 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2392 av_exit(1);
2393 }
2394 if ((frame_rightBand) >= frame_width){
2395 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2396 av_exit(1);
2397 }
2398 frame_width -= frame_rightBand;
2399 }
2400
2401 static void opt_frame_size(const char *arg)
2402 {
2403 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2404 fprintf(stderr, "Incorrect frame size\n");
2405 av_exit(1);
2406 }
2407 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2408 fprintf(stderr, "Frame size must be a multiple of 2\n");
2409 av_exit(1);
2410 }
2411 }
2412
2413
2414 #define SCALEBITS 10
2415 #define ONE_HALF (1 << (SCALEBITS - 1))
2416 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2417
2418 #define RGB_TO_Y(r, g, b) \
2419 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2420 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2421
2422 #define RGB_TO_U(r1, g1, b1, shift)\
2423 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2424 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2425
2426 #define RGB_TO_V(r1, g1, b1, shift)\
2427 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2428 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2429
2430 static void opt_pad_color(const char *arg) {
2431 /* Input is expected to be six hex digits similar to
2432 how colors are expressed in html tags (but without the #) */
2433 int rgb = strtol(arg, NULL, 16);
2434 int r,g,b;
2435
2436 r = (rgb >> 16);
2437 g = ((rgb >> 8) & 255);
2438 b = (rgb & 255);
2439
2440 padcolor[0] = RGB_TO_Y(r,g,b);
2441 padcolor[1] = RGB_TO_U(r,g,b,0);
2442 padcolor[2] = RGB_TO_V(r,g,b,0);
2443 }
2444
2445 static void opt_frame_pad_top(const char *arg)
2446 {
2447 frame_padtop = atoi(arg);
2448 if (frame_padtop < 0) {
2449 fprintf(stderr, "Incorrect top pad size\n");
2450 av_exit(1);
2451 }
2452 if ((frame_padtop % 2) != 0) {
2453 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2454 av_exit(1);
2455 }
2456 }
2457
2458 static void opt_frame_pad_bottom(const char *arg)
2459 {
2460 frame_padbottom = atoi(arg);
2461 if (frame_padbottom < 0) {
2462 fprintf(stderr, "Incorrect bottom pad size\n");
2463 av_exit(1);
2464 }
2465 if ((frame_padbottom % 2) != 0) {
2466 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2467 av_exit(1);
2468 }
2469 }
2470
2471
2472 static void opt_frame_pad_left(const char *arg)
2473 {
2474 frame_padleft = atoi(arg);
2475 if (frame_padleft < 0) {
2476 fprintf(stderr, "Incorrect left pad size\n");
2477 av_exit(1);
2478 }
2479 if ((frame_padleft % 2) != 0) {
2480 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2481 av_exit(1);
2482 }
2483 }
2484
2485
2486 static void opt_frame_pad_right(const char *arg)
2487 {
2488 frame_padright = atoi(arg);
2489 if (frame_padright < 0) {
2490 fprintf(stderr, "Incorrect right pad size\n");
2491 av_exit(1);
2492 }
2493 if ((frame_padright % 2) != 0) {
2494 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2495 av_exit(1);
2496 }
2497 }
2498
2499 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2500 {
2501 int i;
2502 char fmt_str[128];
2503 for (i=-1; i < nb_fmts; i++) {
2504 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2505 fprintf(stdout, "%s\n", fmt_str);
2506 }
2507 }
2508
2509 static void opt_frame_pix_fmt(const char *arg)
2510 {
2511 if (strcmp(arg, "list"))
2512 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2513 else {
2514 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2515 av_exit(0);
2516 }
2517 }
2518
2519 static void opt_frame_aspect_ratio(const char *arg)
2520 {
2521 int x = 0, y = 0;
2522 double ar = 0;
2523 const char *p;
2524 char *end;
2525
2526 p = strchr(arg, ':');
2527 if (p) {
2528 x = strtol(arg, &end, 10);
2529 if (end == p)
2530 y = strtol(end+1, &end, 10);
2531 if (x > 0 && y > 0)
2532 ar = (double)x / (double)y;
2533 } else
2534 ar = strtod(arg, NULL);
2535
2536 if (!ar) {
2537 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2538 av_exit(1);
2539 }
2540 frame_aspect_ratio = ar;
2541 }
2542
2543 static void opt_qscale(const char *arg)
2544 {
2545 video_qscale = atof(arg);
2546 if (video_qscale <= 0 ||
2547 video_qscale > 255) {
2548 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2549 av_exit(1);
2550 }
2551 }
2552
2553 static void opt_top_field_first(const char *arg)
2554 {
2555 top_field_first= atoi(arg);
2556 }
2557
2558 static int opt_thread_count(const char *opt, const char *arg)
2559 {
2560 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2561 #if !HAVE_THREADS
2562 if (verbose >= 0)
2563 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2564 #endif
2565 return 0;
2566 }
2567
2568 static void opt_audio_sample_fmt(const char *arg)
2569 {
2570 if (strcmp(arg, "list"))
2571 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2572 else {
2573 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2574 av_exit(0);
2575 }
2576 }
2577
2578 static int opt_audio_rate(const char *opt, const char *arg)
2579 {
2580 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2581 return 0;
2582 }
2583
2584 static int opt_audio_channels(const char *opt, const char *arg)
2585 {
2586 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2587 return 0;
2588 }
2589
2590 static void opt_video_channel(const char *arg)
2591 {
2592 video_channel = strtol(arg, NULL, 0);
2593 }
2594
2595 static void opt_video_standard(const char *arg)
2596 {
2597 video_standard = av_strdup(arg);
2598 }
2599
2600 static void opt_codec(int *pstream_copy, char **pcodec_name,
2601 int codec_type, const char *arg)
2602 {
2603 av_freep(pcodec_name);
2604 if (!strcmp(arg, "copy")) {
2605 *pstream_copy = 1;
2606 } else {
2607 *pcodec_name = av_strdup(arg);
2608 }
2609 }
2610
2611 static void opt_audio_codec(const char *arg)
2612 {
2613 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2614 }
2615
2616 static void opt_audio_tag(const char *arg)
2617 {
2618 char *tail;
2619 audio_codec_tag= strtol(arg, &tail, 0);
2620
2621 if(!tail || *tail)
2622 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2623 }
2624
2625 static void opt_video_tag(const char *arg)
2626 {
2627 char *tail;
2628 video_codec_tag= strtol(arg, &tail, 0);
2629
2630 if(!tail || *tail)
2631 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2632 }
2633
2634 #if CONFIG_VHOOK
2635 static void add_frame_hooker(const char *arg)
2636 {
2637 int argc = 0;
2638 char *argv[64];
2639 int i;
2640 char *args = av_strdup(arg);
2641
2642 using_vhook = 1;
2643
2644 argv[0] = strtok(args, " ");
2645 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2646 }
2647
2648 i = frame_hook_add(argc, argv);
2649
2650 if (i != 0) {
2651 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2652 av_exit(1);
2653 }
2654 }
2655 #endif
2656
2657 static void opt_video_codec(const char *arg)
2658 {
2659 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2660 }
2661
2662 static void opt_subtitle_codec(const char *arg)
2663 {
2664 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2665 }
2666
2667 static void opt_map(const char *arg)
2668 {
2669 AVStreamMap *m;
2670 char *p;
2671
2672 m = &stream_maps[nb_stream_maps++];
2673
2674 m->file_index = strtol(arg, &p, 0);
2675 if (*p)
2676 p++;
2677
2678 m->stream_index = strtol(p, &p, 0);
2679 if (*p) {
2680 p++;
2681 m->sync_file_index = strtol(p, &p, 0);
2682 if (*p)
2683 p++;
2684 m->sync_stream_index = strtol(p, &p, 0);
2685 } else {
2686 m->sync_file_index = m->file_index;
2687 m->sync_stream_index = m->stream_index;
2688 }
2689 }
2690
2691 static void opt_map_meta_data(const char *arg)
2692 {
2693 AVMetaDataMap *m;
2694 char *p;
2695
2696 m = &meta_data_maps[nb_meta_data_maps++];
2697
2698 m->out_file = strtol(arg, &p, 0);
2699 if (*p)
2700 p++;
2701
2702 m->in_file = strtol(p, &p, 0);
2703 }
2704
2705 static void opt_input_ts_scale(const char *arg)
2706 {
2707 unsigned int stream;
2708 double scale;
2709 char *p;
2710
2711 stream = strtol(arg, &p, 0);
2712 if (*p)
2713 p++;
2714 scale= strtod(p, &p);
2715
2716 if(stream >= MAX_STREAMS)
2717 av_exit(1);
2718
2719 input_files_ts_scale[nb_input_files][stream]= scale;
2720 }
2721
2722 static int opt_recording_time(const char *opt, const char *arg)
2723 {
2724 recording_time = parse_time_or_die(opt, arg, 1);
2725 return 0;
2726 }
2727
2728 static int opt_start_time(const char *opt, const char *arg)
2729 {
2730 start_time = parse_time_or_die(opt, arg, 1);
2731 return 0;
2732 }
2733
2734 static int opt_rec_timestamp(const char *opt, const char *arg)
2735 {
2736 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2737 return 0;
2738 }
2739
2740 static int opt_input_ts_offset(const char *opt, const char *arg)
2741 {
2742 input_ts_offset = parse_time_or_die(opt, arg, 1);
2743 return 0;
2744 }
2745
2746 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2747 {
2748 const char *codec_string = encoder ? "encoder" : "decoder";
2749 AVCodec *codec;
2750
2751 if(!name)
2752 return CODEC_ID_NONE;
2753 codec = encoder ?
2754 avcodec_find_encoder_by_name(name) :
2755 avcodec_find_decoder_by_name(name);
2756 if(!codec) {
2757 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2758 av_exit(1);
2759 }
2760 if(codec->type != type) {
2761 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2762 av_exit(1);
2763 }
2764 return codec->id;
2765 }
2766
2767 static void opt_input_file(const char *filename)
2768 {
2769 AVFormatContext *ic;
2770 AVFormatParameters params, *ap = &params;
2771 int err, i, ret, rfps, rfps_base;
2772 int64_t timestamp;
2773
2774 if (!strcmp(filename, "-"))
2775 filename = "pipe:";
2776
2777 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2778 !strcmp(filename, "/dev/stdin");
2779
2780 /* get default parameters from command line */
2781 ic = av_alloc_format_context();
2782
2783 memset(ap, 0, sizeof(*ap));
2784 ap->prealloced_context = 1;
2785 ap->sample_rate = audio_sample_rate;
2786 ap->channels = audio_channels;
2787 ap->time_base.den = frame_rate.num;
2788 ap->time_base.num = frame_rate.den;
2789 ap->width = frame_width + frame_padleft + frame_padright;
2790 ap->height = frame_height + frame_padtop + frame_padbottom;
2791 ap->pix_fmt = frame_pix_fmt;
2792 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2793 ap->channel = video_channel;
2794 ap->standard = video_standard;
2795 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2796 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2797 if(pgmyuv_compatibility_hack)
2798 ap->video_codec_id= CODEC_ID_PGMYUV;
2799
2800 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2801
2802 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2803 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2804 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2805
2806 /* open the input file with generic libav function */
2807 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2808 if (err < 0) {
2809 print_error(filename, err);
2810 av_exit(1);
2811 }
2812 if(opt_programid) {
2813 int i;
2814 for(i=0; i<ic->nb_programs; i++)
2815 if(ic->programs[i]->id != opt_programid)
2816 ic->programs[i]->discard = AVDISCARD_ALL;
2817 }
2818
2819 ic->loop_input = loop_input;
2820
2821 /* If not enough info to get the stream parameters, we decode the
2822 first frames to get it. (used in mpeg case for example) */
2823 ret = av_find_stream_info(ic);
2824 if (ret < 0 && verbose >= 0) {
2825 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2826 av_exit(1);
2827 }
2828
2829 timestamp = start_time;
2830 /* add the stream start time */
2831 if (ic->start_time != AV_NOPTS_VALUE)
2832 timestamp += ic->start_time;
2833
2834 /* if seeking requested, we execute it */
2835 if (start_time != 0) {
2836 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2837 if (ret < 0) {
2838 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2839 filename, (double)timestamp / AV_TIME_BASE);
2840 }
2841 /* reset seek info */
2842 start_time = 0;
2843 }
2844
2845 /* update the current parameters so that they match the one of the input stream */
2846 for(i=0;i<ic->nb_streams;i++) {
2847 AVCodecContext *enc = ic->streams[i]->codec;
2848 if(thread_count>1)
2849 avcodec_thread_init(enc, thread_count);
2850 enc->thread_count= thread_count;
2851 switch(enc->codec_type) {
2852 case CODEC_TYPE_AUDIO:
2853 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2854 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2855 channel_layout = enc->channel_layout;
2856 audio_channels = enc->channels;
2857 audio_sample_rate = enc->sample_rate;
2858 audio_sample_fmt = enc->sample_fmt;
2859 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2860 if(audio_disable)
2861 ic->streams[i]->discard= AVDISCARD_ALL;
2862 break;
2863 case CODEC_TYPE_VIDEO:
2864 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2865 frame_height = enc->height;
2866 frame_width = enc->width;
2867 if(ic->streams[i]->sample_aspect_ratio.num)
2868 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2869 else
2870 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2871 frame_aspect_ratio *= (float) enc->width / enc->height;
2872 frame_pix_fmt = enc->pix_fmt;
2873 rfps = ic->streams[i]->r_frame_rate.num;
2874 rfps_base = ic->streams[i]->r_frame_rate.den;
2875 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2876 if(me_threshold)
2877 enc->debug |= FF_DEBUG_MV;
2878
2879 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2880
2881 if (verbose >= 0)
2882 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2883 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2884
2885 (float)rfps / rfps_base, rfps, rfps_base);
2886 }
2887 /* update the current frame rate to match the stream frame rate */
2888 frame_rate.num = rfps;
2889 frame_rate.den = rfps_base;
2890
2891 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2892 if(video_disable)
2893 ic->streams[i]->discard= AVDISCARD_ALL;
2894 else if(video_discard)
2895 ic->streams[i]->discard= video_discard;
2896 break;
2897 case CODEC_TYPE_DATA:
2898 break;
2899 case CODEC_TYPE_SUBTITLE:
2900 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2901 if(subtitle_disable)
2902 ic->streams[i]->discard = AVDISCARD_ALL;
2903 break;
2904 case CODEC_TYPE_ATTACHMENT:
2905 case CODEC_TYPE_UNKNOWN:
2906 nb_icodecs++;
2907 break;
2908 default:
2909 abort();
2910 }
2911 }
2912
2913 input_files[nb_input_files] = ic;
2914 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2915 /* dump the file content */
2916 if (verbose >= 0)
2917 dump_format(ic, nb_input_files, filename, 0);
2918
2919 nb_input_files++;
2920 file_iformat = NULL;
2921 file_oformat = NULL;
2922
2923 video_channel = 0;
2924
2925 av_freep(&video_codec_name);
2926 av_freep(&audio_codec_name);
2927 av_freep(&subtitle_codec_name);
2928 }
2929
2930 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2931 int *has_subtitle_ptr)
2932 {
2933 int has_video, has_audio, has_subtitle, i, j;
2934 AVFormatContext *ic;
2935
2936 has_video = 0;
2937 has_audio = 0;
2938 has_subtitle = 0;
2939 for(j=0;j<nb_input_files;j++) {
2940 ic = input_files[j];
2941 for(i=0;i<ic->nb_streams;i++) {
2942 AVCodecContext *enc = ic->streams[i]->codec;
2943 switch(enc->codec_type) {
2944 case CODEC_TYPE_AUDIO:
2945 has_audio = 1;
2946 break;
2947 case CODEC_TYPE_VIDEO:
2948 has_video = 1;
2949 break;
2950 case CODEC_TYPE_SUBTITLE:
2951 has_subtitle = 1;
2952 break;
2953 case CODEC_TYPE_DATA:
2954 case CODEC_TYPE_ATTACHMENT:
2955 case CODEC_TYPE_UNKNOWN:
2956 break;
2957 default:
2958 abort();
2959 }
2960 }
2961 }
2962 *has_video_ptr = has_video;
2963 *has_audio_ptr = has_audio;
2964 *has_subtitle_ptr = has_subtitle;
2965 }
2966
2967 static void new_video_stream(AVFormatContext *oc)
2968 {
2969 AVStream *st;
2970 AVCodecContext *video_enc;
2971 int codec_id;
2972
2973 st = av_new_stream(oc, oc->nb_streams);
2974 if (!st) {
2975 fprintf(stderr, "Could not alloc stream\n");
2976 av_exit(1);
2977 }
2978 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2979 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2980 video_bitstream_filters= NULL;
2981
2982 if(thread_count>1)
2983 avcodec_thread_init(st->codec, thread_count);
2984
2985 video_enc = st->codec;
2986
2987 if(video_codec_tag)
2988 video_enc->codec_tag= video_codec_tag;
2989
2990 if( (video_global_header&1)
2991 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2992 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2993 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2994 }
2995 if(video_global_header&2){
2996 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2997 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2998 }
2999
3000 if (video_stream_copy) {
3001 st->stream_copy = 1;
3002 video_enc->codec_type = CODEC_TYPE_VIDEO;
3003 video_enc->sample_aspect_ratio =
3004 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3005 } else {
3006 const char *p;
3007 int i;
3008 AVCodec *codec;
3009 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3010
3011 if (video_codec_name) {
3012 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3013 codec = avcodec_find_encoder_by_name(video_codec_name);
3014 output_codecs[nb_ocodecs] = codec;
3015 } else {
3016 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3017 codec = avcodec_find_encoder(codec_id);
3018 }
3019
3020 video_enc->codec_id = codec_id;
3021
3022 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3023
3024 if (codec && codec->supported_framerates && !force_fps)
3025 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3026 video_enc->time_base.den = fps.num;
3027 video_enc->time_base.num = fps.den;
3028
3029 video_enc->width = frame_width + frame_padright + frame_padleft;
3030 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3031 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3032 video_enc->pix_fmt = frame_pix_fmt;
3033 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3034
3035 if(codec && codec->pix_fmts){
3036 const enum PixelFormat *p= codec->pix_fmts;
3037 for(; *p!=-1; p++){
3038 if(*p == video_enc->pix_fmt)
3039 break;
3040 }
3041 if(*p == -1)
3042 video_enc->pix_fmt = codec->pix_fmts[0];
3043 }
3044
3045 if (intra_only)
3046 video_enc->gop_size = 0;
3047 if (video_qscale || same_quality) {
3048 video_enc->flags |= CODEC_FLAG_QSCALE;
3049 video_enc->global_quality=
3050 st->quality = FF_QP2LAMBDA * video_qscale;
3051 }
3052
3053 if(intra_matrix)
3054 video_enc->intra_matrix = intra_matrix;
3055 if(inter_matrix)
3056 video_enc->inter_matrix = inter_matrix;
3057
3058 video_enc->thread_count = thread_count;
3059 p= video_rc_override_string;
3060 for(i=0; p; i++){
3061 int start, end, q;
3062 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3063 if(e!=3){
3064 fprintf(stderr, "error parsing rc_override\n");
3065 av_exit(1);
3066 }
3067 video_enc->rc_override=
3068 av_realloc(video_enc->rc_override,
3069 sizeof(RcOverride)*(i+1));
3070 video_enc->rc_override[i].start_frame= start;
3071 video_enc->rc_override[i].end_frame = end;
3072 if(q>0){
3073 video_enc->rc_override[i].qscale= q;
3074 video_enc->rc_override[i].quality_factor= 1.0;
3075 }
3076 else{
3077 video_enc->rc_override[i].qscale= 0;
3078 video_enc->rc_override[i].quality_factor= -q/100.0;
3079 }
3080 p= strchr(p, '/');
3081 if(p) p++;
3082 }
3083 video_enc->rc_override_count=i;
3084 if (!video_enc->rc_initial_buffer_occupancy)
3085 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3086 video_enc->me_threshold= me_threshold;
3087 video_enc->intra_dc_precision= intra_dc_precision - 8;
3088
3089 if (do_psnr)
3090 video_enc->flags|= CODEC_FLAG_PSNR;
3091
3092 /* two pass mode */
3093 if (do_pass) {
3094 if (do_pass == 1) {
3095 video_enc->flags |= CODEC_FLAG_PASS1;
3096 } else {
3097 video_enc->flags |= CODEC_FLAG_PASS2;
3098 }
3099 }
3100 }
3101 nb_ocodecs++;
3102
3103 /* reset some key parameters */
3104 video_disable = 0;
3105 av_freep(&video_codec_name);
3106 video_stream_copy = 0;
3107 }
3108
3109 static void new_audio_stream(AVFormatContext *oc)
3110 {
3111 AVStream *st;
3112 AVCodecContext *audio_enc;
3113 int codec_id;
3114
3115 st = av_new_stream(oc, oc->nb_streams);
3116 if (!st) {
3117 fprintf(stderr, "Could not alloc stream\n");
3118 av_exit(1);
3119 }
3120 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3121
3122 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3123 audio_bitstream_filters= NULL;
3124
3125 if(thread_count>1)
3126 avcodec_thread_init(st->codec, thread_count);
3127
3128 audio_enc = st->codec;
3129 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3130
3131 if(audio_codec_tag)
3132 audio_enc->codec_tag= audio_codec_tag;
3133
3134 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3135 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3136 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3137 }
3138 if (audio_stream_copy) {
3139 st->stream_copy = 1;
3140 audio_enc->channels = audio_channels;
3141 } else {
3142 AVCodec *codec;
3143
3144 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3145
3146 if (audio_codec_name) {
3147 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3148 codec = avcodec_find_encoder_by_name(audio_codec_name);
3149 output_codecs[nb_ocodecs] = codec;
3150 } else {
3151 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3152 codec = avcodec_find_encoder(codec_id);
3153 }
3154 audio_enc->codec_id = codec_id;
3155
3156 if (audio_qscale > QSCALE_NONE) {
3157 audio_enc->flags |= CODEC_FLAG_QSCALE;
3158 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3159 }
3160 audio_enc->thread_count = thread_count;
3161 audio_enc->channels = audio_channels;
3162 audio_enc->sample_fmt = audio_sample_fmt;
3163 audio_enc->channel_layout = channel_layout;
3164
3165 if(codec && codec->sample_fmts){
3166 const enum SampleFormat *p= codec->sample_fmts;
3167 for(; *p!=-1; p++){
3168 if(*p == audio_enc->sample_fmt)
3169 break;
3170 }
3171 if(*p == -1)
3172 audio_enc->sample_fmt = codec->sample_fmts[0];
3173 }
3174 }
3175 nb_ocodecs++;
3176 audio_enc->sample_rate = audio_sample_rate;
3177 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3178 if (audio_language) {
3179 av_strlcpy(st->language, audio_language, sizeof(st->language));
3180 av_free(audio_language);
3181 audio_language = NULL;
3182 }
3183
3184 /* reset some key parameters */
3185 audio_disable = 0;
3186 av_freep(&audio_codec_name);
3187 audio_stream_copy = 0;
3188 }
3189
3190 static void new_subtitle_stream(AVFormatContext *oc)
3191 {
3192 AVStream *st;
3193 AVCodecContext *subtitle_enc;
3194
3195 st = av_new_stream(oc, oc->nb_streams);
3196 if (!st) {
3197 fprintf(stderr, "Could not alloc stream\n");
3198 av_exit(1);
3199 }
3200 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3201
3202 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3203 subtitle_bitstream_filters= NULL;
3204
3205 subtitle_enc = st->codec;
3206 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3207 if (subtitle_stream_copy) {
3208 st->stream_copy = 1;
3209 } else {
3210 set_context_opts(avctx_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3211 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3212 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3213 }
3214 nb_ocodecs++;
3215
3216 if (subtitle_language) {
3217 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
3218 av_free