projects / libav.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
indent
[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 "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.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 static int subtitle_codec_tag = 0;
167
168 static float mux_preload= 0.5;
169 static float mux_max_delay= 0.7;
170
171 static int64_t recording_time = INT64_MAX;
172 static int64_t start_time = 0;
173 static int64_t rec_timestamp = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static int metadata_count;
177 static AVMetadataTag *metadata;
178 static int do_benchmark = 0;
179 static int do_hex_dump = 0;
180 static int do_pkt_dump = 0;
181 static int do_psnr = 0;
182 static int do_pass = 0;
183 static char *pass_logfilename_prefix = NULL;
184 static int audio_stream_copy = 0;
185 static int video_stream_copy = 0;
186 static int subtitle_stream_copy = 0;
187 static int video_sync_method= -1;
188 static int audio_sync_method= 0;
189 static float audio_drift_threshold= 0.1;
190 static int copy_ts= 0;
191 static int opt_shortest = 0;
192 static int video_global_header = 0;
193 static char *vstats_filename;
194 static FILE *vstats_file;
195 static int opt_programid = 0;
196 static int copy_initial_nonkeyframes = 0;
197
198 static int rate_emu = 0;
199
200 static int video_channel = 0;
201 static char *video_standard;
202
203 static int audio_volume = 256;
204
205 static int exit_on_error = 0;
206 static int using_stdin = 0;
207 static int verbose = 1;
208 static int thread_count= 1;
209 static int q_pressed = 0;
210 static int64_t video_size = 0;
211 static int64_t audio_size = 0;
212 static int64_t extra_size = 0;
213 static int nb_frames_dup = 0;
214 static int nb_frames_drop = 0;
215 static int input_sync;
216 static uint64_t limit_filesize = 0;
217 static int force_fps = 0;
218
219 static int pgmyuv_compatibility_hack=0;
220 static float dts_delta_threshold = 10;
221
222 static unsigned int sws_flags = SWS_BICUBIC;
223
224 static int64_t timer_start;
225
226 static uint8_t *audio_buf;
227 static uint8_t *audio_out;
228 static uint8_t *audio_out2;
229
230 static short *samples;
231
232 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
234 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
235 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
236
237 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
238
239 struct AVInputStream;
240
241 typedef struct AVOutputStream {
242 int file_index; /* file index */
243 int index; /* stream index in the output file */
244 int source_index; /* AVInputStream index */
245 AVStream *st; /* stream in the output file */
246 int encoding_needed; /* true if encoding needed for this stream */
247 int frame_number;
248 /* input pts and corresponding output pts
249 for A/V sync */
250 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
251 struct AVInputStream *sync_ist; /* input stream to sync against */
252 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
253 /* video only */
254 int video_resample;
255 AVFrame pict_tmp; /* temporary image for resampling */
256 struct SwsContext *img_resample_ctx; /* for image resampling */
257 int resample_height;
258
259 int video_crop;
260 int topBand; /* cropping area sizes */
261 int leftBand;
262
263 int video_pad;
264 int padtop; /* padding area sizes */
265 int padbottom;
266 int padleft;
267 int padright;
268
269 /* audio only */
270 int audio_resample;
271 ReSampleContext *resample; /* for audio resampling */
272 int reformat_pair;
273 AVAudioConvert *reformat_ctx;
274 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
275 FILE *logfile;
276 } AVOutputStream;
277
278 typedef struct AVInputStream {
279 int file_index;
280 int index;
281 AVStream *st;
282 int discard; /* true if stream data should be discarded */
283 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
284 int64_t sample_index; /* current sample */
285
286 int64_t start; /* time when read started */
287 int64_t next_pts; /* synthetic pts for cases where pkt.pts
288 is not defined */
289 int64_t pts; /* current pts */
290 int is_start; /* is 1 at the start and after a discontinuity */
291 } AVInputStream;
292
293 typedef struct AVInputFile {
294 int eof_reached; /* true if eof reached */
295 int ist_index; /* index of first stream in ist_table */
296 int buffer_size; /* current total buffer size */
297 int nb_streams; /* nb streams we are aware of */
298 } AVInputFile;
299
300 #if HAVE_TERMIOS_H
301
302 /* init terminal so that we can grab keys */
303 static struct termios oldtty;
304 #endif
305
306 static void term_exit(void)
307 {
308 #if HAVE_TERMIOS_H
309 tcsetattr (0, TCSANOW, &oldtty);
310 #endif
311 }
312
313 static volatile sig_atomic_t received_sigterm = 0;
314
315 static void
316 sigterm_handler(int sig)
317 {
318 received_sigterm = sig;
319 term_exit();
320 }
321
322 static void term_init(void)
323 {
324 #if HAVE_TERMIOS_H
325 struct termios tty;
326
327 tcgetattr (0, &tty);
328 oldtty = tty;
329
330 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
331 |INLCR|IGNCR|ICRNL|IXON);
332 tty.c_oflag |= OPOST;
333 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
334 tty.c_cflag &= ~(CSIZE|PARENB);
335 tty.c_cflag |= CS8;
336 tty.c_cc[VMIN] = 1;
337 tty.c_cc[VTIME] = 0;
338
339 tcsetattr (0, TCSANOW, &tty);
340 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
341 #endif
342
343 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
344 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
345 /*
346 register a function to be called at normal program termination
347 */
348 atexit(term_exit);
349 #if CONFIG_BEOS_NETSERVER
350 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
351 #endif
352 }
353
354 /* read a key without blocking */
355 static int read_key(void)
356 {
357 #if HAVE_TERMIOS_H
358 int n = 1;
359 unsigned char ch;
360 #if !CONFIG_BEOS_NETSERVER
361 struct timeval tv;
362 fd_set rfds;
363
364 FD_ZERO(&rfds);
365 FD_SET(0, &rfds);
366 tv.tv_sec = 0;
367 tv.tv_usec = 0;
368 n = select(1, &rfds, NULL, NULL, &tv);
369 #endif
370 if (n > 0) {
371 n = read(0, &ch, 1);
372 if (n == 1)
373 return ch;
374
375 return n;
376 }
377 #elif HAVE_CONIO_H
378 if(kbhit())
379 return(getch());
380 #endif
381 return -1;
382 }
383
384 static int decode_interrupt_cb(void)
385 {
386 return q_pressed || (q_pressed = read_key() == 'q');
387 }
388
389 static int av_exit(int ret)
390 {
391 int i;
392
393 /* close files */
394 for(i=0;i<nb_output_files;i++) {
395 /* maybe av_close_output_file ??? */
396 AVFormatContext *s = output_files[i];
397 int j;
398 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
399 url_fclose(s->pb);
400 for(j=0;j<s->nb_streams;j++) {
401 av_metadata_free(&s->streams[j]->metadata);
402 av_free(s->streams[j]->codec);
403 av_free(s->streams[j]);
404 }
405 for(j=0;j<s->nb_programs;j++) {
406 av_metadata_free(&s->programs[j]->metadata);
407 }
408 for(j=0;j<s->nb_chapters;j++) {
409 av_metadata_free(&s->chapters[j]->metadata);
410 }
411 av_metadata_free(&s->metadata);
412 av_free(s);
413 }
414 for(i=0;i<nb_input_files;i++)
415 av_close_input_file(input_files[i]);
416
417 av_free(intra_matrix);
418 av_free(inter_matrix);
419
420 if (vstats_file)
421 fclose(vstats_file);
422 av_free(vstats_filename);
423
424 av_free(opt_names);
425
426 av_free(video_codec_name);
427 av_free(audio_codec_name);
428 av_free(subtitle_codec_name);
429
430 av_free(video_standard);
431
432 #if CONFIG_POWERPC_PERF
433 void powerpc_display_perf_report(void);
434 powerpc_display_perf_report();
435 #endif /* CONFIG_POWERPC_PERF */
436
437 for (i=0;i<CODEC_TYPE_NB;i++)
438 av_free(avcodec_opts[i]);
439 av_free(avformat_opts);
440 av_free(sws_opts);
441 av_free(audio_buf);
442 av_free(audio_out);
443 av_free(audio_out2);
444 av_free(samples);
445
446 if (received_sigterm) {
447 fprintf(stderr,
448 "Received signal %d: terminating.\n",
449 (int) received_sigterm);
450 exit (255);
451 }
452
453 exit(ret); /* not all OS-es handle main() return value */
454 return ret;
455 }
456
457 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
458 {
459 int i, err;
460 AVFormatContext *ic;
461 int nopts = 0;
462
463 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
464 if (err < 0)
465 return err;
466 /* copy stream format */
467 s->nb_streams = ic->nb_streams;
468 for(i=0;i<ic->nb_streams;i++) {
469 AVStream *st;
470
471 // FIXME: a more elegant solution is needed
472 st = av_mallocz(sizeof(AVStream));
473 memcpy(st, ic->streams[i], sizeof(AVStream));
474 st->codec = avcodec_alloc_context();
475 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
476 s->streams[i] = st;
477
478 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
479 st->stream_copy = 1;
480 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
481 st->stream_copy = 1;
482
483 if(!st->codec->thread_count)
484 st->codec->thread_count = 1;
485 if(st->codec->thread_count>1)
486 avcodec_thread_init(st->codec, st->codec->thread_count);
487
488 if(st->codec->flags & CODEC_FLAG_BITEXACT)
489 nopts = 1;
490 }
491
492 if (!nopts)
493 s->timestamp = av_gettime();
494
495 av_close_input_file(ic);
496 return 0;
497 }
498
499 static double
500 get_sync_ipts(const AVOutputStream *ost)
501 {
502 const AVInputStream *ist = ost->sync_ist;
503 return (double)(ist->pts - start_time)/AV_TIME_BASE;
504 }
505
506 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
507 int ret;
508
509 while(bsfc){
510 AVPacket new_pkt= *pkt;
511 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
512 &new_pkt.data, &new_pkt.size,
513 pkt->data, pkt->size,
514 pkt->flags & PKT_FLAG_KEY);
515 if(a>0){
516 av_free_packet(pkt);
517 new_pkt.destruct= av_destruct_packet;
518 } else if(a<0){
519 fprintf(stderr, "%s failed for stream %d, codec %s",
520 bsfc->filter->name, pkt->stream_index,
521 avctx->codec ? avctx->codec->name : "copy");
522 print_error("", a);
523 if (exit_on_error)
524 av_exit(1);
525 }
526 *pkt= new_pkt;
527
528 bsfc= bsfc->next;
529 }
530
531 ret= av_interleaved_write_frame(s, pkt);
532 if(ret < 0){
533 print_error("av_interleaved_write_frame()", ret);
534 av_exit(1);
535 }
536 }
537
538 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
539
540 static void do_audio_out(AVFormatContext *s,
541 AVOutputStream *ost,
542 AVInputStream *ist,
543 unsigned char *buf, int size)
544 {
545 uint8_t *buftmp;
546 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
547
548 int size_out, frame_bytes, ret;
549 AVCodecContext *enc= ost->st->codec;
550 AVCodecContext *dec= ist->st->codec;
551 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
552 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
553
554 /* SC: dynamic allocation of buffers */
555 if (!audio_buf)
556 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
557 if (!audio_out)
558 audio_out = av_malloc(audio_out_size);
559 if (!audio_buf || !audio_out)
560 return; /* Should signal an error ! */
561
562 if (enc->channels != dec->channels)
563 ost->audio_resample = 1;
564
565 if (ost->audio_resample && !ost->resample) {
566 if (dec->sample_fmt != SAMPLE_FMT_S16)
567 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
568 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
569 enc->sample_rate, dec->sample_rate,
570 enc->sample_fmt, dec->sample_fmt,
571 16, 10, 0, 0.8);
572 if (!ost->resample) {
573 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
574 dec->channels, dec->sample_rate,
575 enc->channels, enc->sample_rate);
576 av_exit(1);
577 }
578 }
579
580 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
581 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
582 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
583 if (!audio_out2)
584 audio_out2 = av_malloc(audio_out_size);
585 if (!audio_out2)
586 av_exit(1);
587 if (ost->reformat_ctx)
588 av_audio_convert_free(ost->reformat_ctx);
589 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
590 dec->sample_fmt, 1, NULL, 0);
591 if (!ost->reformat_ctx) {
592 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
593 avcodec_get_sample_fmt_name(dec->sample_fmt),
594 avcodec_get_sample_fmt_name(enc->sample_fmt));
595 av_exit(1);
596 }
597 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
598 }
599
600 if(audio_sync_method){
601 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
602 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
603 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
604 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
605
606 //FIXME resample delay
607 if(fabs(delta) > 50){
608 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
609 if(byte_delta < 0){
610 byte_delta= FFMAX(byte_delta, -size);
611 size += byte_delta;
612 buf -= byte_delta;
613 if(verbose > 2)
614 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
615 if(!size)
616 return;
617 ist->is_start=0;
618 }else{
619 static uint8_t *input_tmp= NULL;
620 input_tmp= av_realloc(input_tmp, byte_delta + size);
621
622 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
623 ist->is_start=0;
624 else
625 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
626
627 memset(input_tmp, 0, byte_delta);
628 memcpy(input_tmp + byte_delta, buf, size);
629 buf= input_tmp;
630 size += byte_delta;
631 if(verbose > 2)
632 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
633 }
634 }else if(audio_sync_method>1){
635 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
636 assert(ost->audio_resample);
637 if(verbose > 2)
638 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
639 // 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));
640 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
641 }
642 }
643 }else
644 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
645 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
646
647 if (ost->audio_resample) {
648 buftmp = audio_buf;
649 size_out = audio_resample(ost->resample,
650 (short *)buftmp, (short *)buf,
651 size / (ist->st->codec->channels * isize));
652 size_out = size_out * enc->channels * osize;
653 } else {
654 buftmp = buf;
655 size_out = size;
656 }
657
658 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
659 const void *ibuf[6]= {buftmp};
660 void *obuf[6]= {audio_out2};
661 int istride[6]= {isize};
662 int ostride[6]= {osize};
663 int len= size_out/istride[0];
664 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
665 printf("av_audio_convert() failed\n");
666 if (exit_on_error)
667 av_exit(1);
668 return;
669 }
670 buftmp = audio_out2;
671 size_out = len*osize;
672 }
673
674 /* now encode as many frames as possible */
675 if (enc->frame_size > 1) {
676 /* output resampled raw samples */
677 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
678 fprintf(stderr, "av_fifo_realloc2() failed\n");
679 av_exit(1);
680 }
681 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
682
683 frame_bytes = enc->frame_size * osize * enc->channels;
684
685 while (av_fifo_size(ost->fifo) >= frame_bytes) {
686 AVPacket pkt;
687 av_init_packet(&pkt);
688
689 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
690
691 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
692
693 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
694 (short *)audio_buf);
695 if (ret < 0) {
696 fprintf(stderr, "Audio encoding failed\n");
697 av_exit(1);
698 }
699 audio_size += ret;
700 pkt.stream_index= ost->index;
701 pkt.data= audio_out;
702 pkt.size= ret;
703 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
704 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
705 pkt.flags |= PKT_FLAG_KEY;
706 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
707
708 ost->sync_opts += enc->frame_size;
709 }
710 } else {
711 AVPacket pkt;
712 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
713 av_init_packet(&pkt);
714
715 ost->sync_opts += size_out / (osize * enc->channels);
716
717 /* output a pcm frame */
718 /* determine the size of the coded buffer */
719 size_out /= osize;
720 if (coded_bps)
721 size_out *= coded_bps;
722
723 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
724 ret = avcodec_encode_audio(enc, audio_out, size_out,
725 (short *)buftmp);
726 if (ret < 0) {
727 fprintf(stderr, "Audio encoding failed\n");
728 av_exit(1);
729 }
730 audio_size += ret;
731 pkt.stream_index= ost->index;
732 pkt.data= audio_out;
733 pkt.size= ret;
734 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
735 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
736 pkt.flags |= PKT_FLAG_KEY;
737 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
738 }
739 }
740
741 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
742 {
743 AVCodecContext *dec;
744 AVPicture *picture2;
745 AVPicture picture_tmp;
746 uint8_t *buf = 0;
747
748 dec = ist->st->codec;
749
750 /* deinterlace : must be done before any resize */
751 if (do_deinterlace) {
752 int size;
753
754 /* create temporary picture */
755 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
756 buf = av_malloc(size);
757 if (!buf)
758 return;
759
760 picture2 = &picture_tmp;
761 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
762
763 if(avpicture_deinterlace(picture2, picture,
764 dec->pix_fmt, dec->width, dec->height) < 0) {
765 /* if error, do not deinterlace */
766 fprintf(stderr, "Deinterlacing failed\n");
767 av_free(buf);
768 buf = NULL;
769 picture2 = picture;
770 }
771 } else {
772 picture2 = picture;
773 }
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 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
869 if(vdelta<=-0.6){
870 nb_frames=0;
871 }else if(vdelta>0.6)
872 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
873 }else if (vdelta > 1.1)
874 nb_frames = lrintf(vdelta);
875 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
876 if (nb_frames == 0){
877 ++nb_frames_drop;
878 if (verbose>2)
879 fprintf(stderr, "*** drop!\n");
880 }else if (nb_frames > 1) {
881 nb_frames_dup += nb_frames;
882 if (verbose>2)
883 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
884 }
885 }else
886 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
887
888 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
889 if (nb_frames <= 0)
890 return;
891
892 if (ost->video_crop) {
893 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
894 fprintf(stderr, "error cropping picture\n");
895 if (exit_on_error)
896 av_exit(1);
897 return;
898 }
899 formatted_picture = &picture_crop_temp;
900 } else {
901 formatted_picture = in_picture;
902 }
903
904 final_picture = formatted_picture;
905 padding_src = formatted_picture;
906 resampling_dst = &ost->pict_tmp;
907 if (ost->video_pad) {
908 final_picture = &ost->pict_tmp;
909 if (ost->video_resample) {
910 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
911 fprintf(stderr, "error padding picture\n");
912 if (exit_on_error)
913 av_exit(1);
914 return;
915 }
916 resampling_dst = &picture_pad_temp;
917 }
918 }
919
920 if (ost->video_resample) {
921 padding_src = NULL;
922 final_picture = &ost->pict_tmp;
923 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
924 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
925 }
926
927 if (ost->video_pad) {
928 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
929 enc->height, enc->width, enc->pix_fmt,
930 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
931 }
932
933 /* duplicates frame if needed */
934 for(i=0;i<nb_frames;i++) {
935 AVPacket pkt;
936 av_init_packet(&pkt);
937 pkt.stream_index= ost->index;
938
939 if (s->oformat->flags & AVFMT_RAWPICTURE) {
940 /* raw pictures are written as AVPicture structure to
941 avoid any copies. We support temorarily the older
942 method. */
943 AVFrame* old_frame = enc->coded_frame;
944 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
945 pkt.data= (uint8_t *)final_picture;
946 pkt.size= sizeof(AVPicture);
947 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
948 pkt.flags |= PKT_FLAG_KEY;
949
950 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
951 enc->coded_frame = old_frame;
952 } else {
953 AVFrame big_picture;
954
955 big_picture= *final_picture;
956 /* better than nothing: use input picture interlaced
957 settings */
958 big_picture.interlaced_frame = in_picture->interlaced_frame;
959 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
960 if(top_field_first == -1)
961 big_picture.top_field_first = in_picture->top_field_first;
962 else
963 big_picture.top_field_first = top_field_first;
964 }
965
966 /* handles sameq here. This is not correct because it may
967 not be a global option */
968 if (same_quality) {
969 big_picture.quality = ist->st->quality;
970 }else
971 big_picture.quality = ost->st->quality;
972 if(!me_threshold)
973 big_picture.pict_type = 0;
974 // big_picture.pts = AV_NOPTS_VALUE;
975 big_picture.pts= ost->sync_opts;
976 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
977 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
978 ret = avcodec_encode_video(enc,
979 bit_buffer, bit_buffer_size,
980 &big_picture);
981 if (ret < 0) {
982 fprintf(stderr, "Video encoding failed\n");
983 av_exit(1);
984 }
985
986 if(ret>0){
987 pkt.data= bit_buffer;
988 pkt.size= ret;
989 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
990 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
991 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
992 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
993 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
994
995 if(enc->coded_frame->key_frame)
996 pkt.flags |= PKT_FLAG_KEY;
997 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
998 *frame_size = ret;
999 video_size += ret;
1000 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1001 // enc->frame_number-1, ret, enc->pict_type);
1002 /* if two pass, output log */
1003 if (ost->logfile && enc->stats_out) {
1004 fprintf(ost->logfile, "%s", enc->stats_out);
1005 }
1006 }
1007 }
1008 ost->sync_opts++;
1009 ost->frame_number++;
1010 }
1011 }
1012
1013 static double psnr(double d){
1014 return -10.0*log(d)/log(10.0);
1015 }
1016
1017 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1018 int frame_size)
1019 {
1020 AVCodecContext *enc;
1021 int frame_number;
1022 double ti1, bitrate, avg_bitrate;
1023
1024 /* this is executed just the first time do_video_stats is called */
1025 if (!vstats_file) {
1026 vstats_file = fopen(vstats_filename, "w");
1027 if (!vstats_file) {
1028 perror("fopen");
1029 av_exit(1);
1030 }
1031 }
1032
1033 enc = ost->st->codec;
1034 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1035 frame_number = ost->frame_number;
1036 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1037 if (enc->flags&CODEC_FLAG_PSNR)
1038 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1039
1040 fprintf(vstats_file,"f_size= %6d ", frame_size);
1041 /* compute pts value */
1042 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1043 if (ti1 < 0.01)
1044 ti1 = 0.01;
1045
1046 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1047 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1048 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1049 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1050 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1051 }
1052 }
1053
1054 static void print_report(AVFormatContext **output_files,
1055 AVOutputStream **ost_table, int nb_ostreams,
1056 int is_last_report)
1057 {
1058 char buf[1024];
1059 AVOutputStream *ost;
1060 AVFormatContext *oc;
1061 int64_t total_size;
1062 AVCodecContext *enc;
1063 int frame_number, vid, i;
1064 double bitrate, ti1, pts;
1065 static int64_t last_time = -1;
1066 static int qp_histogram[52];
1067
1068 if (!is_last_report) {
1069 int64_t cur_time;
1070 /* display the report every 0.5 seconds */
1071 cur_time = av_gettime();
1072 if (last_time == -1) {
1073 last_time = cur_time;
1074 return;
1075 }
1076 if ((cur_time - last_time) < 500000)
1077 return;
1078 last_time = cur_time;
1079 }
1080
1081
1082 oc = output_files[0];
1083
1084 total_size = url_fsize(oc->pb);
1085 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1086 total_size= url_ftell(oc->pb);
1087
1088 buf[0] = '\0';
1089 ti1 = 1e10;
1090 vid = 0;
1091 for(i=0;i<nb_ostreams;i++) {
1092 ost = ost_table[i];
1093 enc = ost->st->codec;
1094 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1095 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1096 !ost->st->stream_copy ?
1097 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1098 }
1099 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1100 float t = (av_gettime()-timer_start) / 1000000.0;
1101
1102 frame_number = ost->frame_number;
1103 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1104 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1105 !ost->st->stream_copy ?
1106 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1107 if(is_last_report)
1108 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1109 if(qp_hist){
1110 int j;
1111 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1112 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1113 qp_histogram[qp]++;
1114 for(j=0; j<32; j++)
1115 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1116 }
1117 if (enc->flags&CODEC_FLAG_PSNR){
1118 int j;
1119 double error, error_sum=0;
1120 double scale, scale_sum=0;
1121 char type[3]= {'Y','U','V'};
1122 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1123 for(j=0; j<3; j++){
1124 if(is_last_report){
1125 error= enc->error[j];
1126 scale= enc->width*enc->height*255.0*255.0*frame_number;
1127 }else{
1128 error= enc->coded_frame->error[j];
1129 scale= enc->width*enc->height*255.0*255.0;
1130 }
1131 if(j) scale/=4;
1132 error_sum += error;
1133 scale_sum += scale;
1134 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1135 }
1136 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1137 }
1138 vid = 1;
1139 }
1140 /* compute min output value */
1141 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1142 if ((pts < ti1) && (pts > 0))
1143 ti1 = pts;
1144 }
1145 if (ti1 < 0.01)
1146 ti1 = 0.01;
1147
1148 if (verbose || is_last_report) {
1149 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1150
1151 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1152 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1153 (double)total_size / 1024, ti1, bitrate);
1154
1155 if (verbose > 1)
1156 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1157 nb_frames_dup, nb_frames_drop);
1158
1159 if (verbose >= 0)
1160 fprintf(stderr, "%s \r", buf);
1161
1162 fflush(stderr);
1163 }
1164
1165 if (is_last_report && verbose >= 0){
1166 int64_t raw= audio_size + video_size + extra_size;
1167 fprintf(stderr, "\n");
1168 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1169 video_size/1024.0,
1170 audio_size/1024.0,
1171 extra_size/1024.0,
1172 100.0*(total_size - raw)/raw
1173 );
1174 }
1175 }
1176
1177 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1178 static int output_packet(AVInputStream *ist, int ist_index,
1179 AVOutputStream **ost_table, int nb_ostreams,
1180 const AVPacket *pkt)
1181 {
1182 AVFormatContext *os;
1183 AVOutputStream *ost;
1184 int 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 AVSubtitle subtitle, *subtitle_to_free;
1191 int got_subtitle;
1192 AVPacket avpkt;
1193
1194 if(ist->next_pts == AV_NOPTS_VALUE)
1195 ist->next_pts= ist->pts;
1196
1197 if (pkt == NULL) {
1198 /* EOF handling */
1199 av_init_packet(&avpkt);
1200 avpkt.data = NULL;
1201 avpkt.size = 0;
1202 goto handle_eof;
1203 } else {
1204 avpkt = *pkt;
1205 }
1206
1207 if(pkt->dts != AV_NOPTS_VALUE)
1208 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1209
1210 //while we have more to decode or while the decoder did output something on EOF
1211 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1212 handle_eof:
1213 ist->pts= ist->next_pts;
1214
1215 if(avpkt.size && avpkt.size != 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_audio3(ist->st->codec, samples, &data_size,
1234 &avpkt);
1235 if (ret < 0)
1236 goto fail_decode;
1237 avpkt.data += ret;
1238 avpkt.size -= 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_video2(ist->st->codec,
1255 &picture, &got_picture, &avpkt);
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 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1265 ist->next_pts += ((int64_t)AV_TIME_BASE *
1266 ist->st->codec->time_base.num * ticks) /
1267 ist->st->codec->time_base.den;
1268 }
1269 avpkt.size = 0;
1270 break;
1271 case CODEC_TYPE_SUBTITLE:
1272 ret = avcodec_decode_subtitle2(ist->st->codec,
1273 &subtitle, &got_subtitle, &avpkt);
1274 if (ret < 0)
1275 goto fail_decode;
1276 if (!got_subtitle) {
1277 goto discard_packet;
1278 }
1279 subtitle_to_free = &subtitle;
1280 avpkt.size = 0;
1281 break;
1282 default:
1283 goto fail_decode;
1284 }
1285 } else {
1286 switch(ist->st->codec->codec_type) {
1287 case CODEC_TYPE_AUDIO:
1288 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1289 ist->st->codec->sample_rate;
1290 break;
1291 case CODEC_TYPE_VIDEO:
1292 if (ist->st->codec->time_base.num != 0) {
1293 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1294 ist->next_pts += ((int64_t)AV_TIME_BASE *
1295 ist->st->codec->time_base.num * ticks) /
1296 ist->st->codec->time_base.den;
1297 }
1298 break;
1299 }
1300 data_buf = avpkt.data;
1301 data_size = avpkt.size;
1302 ret = avpkt.size;
1303 avpkt.size = 0;
1304 }
1305
1306 buffer_to_free = NULL;
1307 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1308 pre_process_video_frame(ist, (AVPicture *)&picture,
1309 &buffer_to_free);
1310 }
1311
1312 // preprocess audio (volume)
1313 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1314 if (audio_volume != 256) {
1315 short *volp;
1316 volp = samples;
1317 for(i=0;i<(data_size / sizeof(short));i++) {
1318 int v = ((*volp) * audio_volume + 128) >> 8;
1319 if (v < -32768) v = -32768;
1320 if (v > 32767) v = 32767;
1321 *volp++ = v;
1322 }
1323 }
1324 }
1325
1326 /* frame rate emulation */
1327 if (rate_emu) {
1328 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1329 int64_t now = av_gettime() - ist->start;
1330 if (pts > now)
1331 usleep(pts - now);
1332 }
1333
1334 /* if output time reached then transcode raw format,
1335 encode packets and output them */
1336 if (start_time == 0 || ist->pts >= start_time)
1337 for(i=0;i<nb_ostreams;i++) {
1338 int frame_size;
1339
1340 ost = ost_table[i];
1341 if (ost->source_index == ist_index) {
1342 os = output_files[ost->file_index];
1343
1344 #if 0
1345 printf("%d: got pts=%0.3f %0.3f\n", i,
1346 (double)pkt->pts / AV_TIME_BASE,
1347 ((double)ist->pts / AV_TIME_BASE) -
1348 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1349 #endif
1350 /* set the input output pts pairs */
1351 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1352
1353 if (ost->encoding_needed) {
1354 switch(ost->st->codec->codec_type) {
1355 case CODEC_TYPE_AUDIO:
1356 do_audio_out(os, ost, ist, data_buf, data_size);
1357 break;
1358 case CODEC_TYPE_VIDEO:
1359 do_video_out(os, ost, ist, &picture, &frame_size);
1360 if (vstats_filename && frame_size)
1361 do_video_stats(os, ost, frame_size);
1362 break;
1363 case CODEC_TYPE_SUBTITLE:
1364 do_subtitle_out(os, ost, ist, &subtitle,
1365 pkt->pts);
1366 break;
1367 default:
1368 abort();
1369 }
1370 } else {
1371 AVFrame avframe; //FIXME/XXX remove this
1372 AVPacket opkt;
1373 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1374
1375 av_init_packet(&opkt);
1376
1377 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1378 continue;
1379
1380 /* no reencoding needed : output the packet directly */
1381 /* force the input stream PTS */
1382
1383 avcodec_get_frame_defaults(&avframe);
1384 ost->st->codec->coded_frame= &avframe;
1385 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1386
1387 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1388 audio_size += data_size;
1389 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1390 video_size += data_size;
1391 ost->sync_opts++;
1392 }
1393
1394 opkt.stream_index= ost->index;
1395 if(pkt->pts != AV_NOPTS_VALUE)
1396 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1397 else
1398 opkt.pts= AV_NOPTS_VALUE;
1399
1400 if (pkt->dts == AV_NOPTS_VALUE)
1401 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1402 else
1403 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1404 opkt.dts -= ost_tb_start_time;
1405
1406 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1407 opkt.flags= pkt->flags;
1408
1409 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1410 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1411 opkt.destruct= av_destruct_packet;
1412
1413 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1414 ost->st->codec->frame_number++;
1415 ost->frame_number++;
1416 av_free_packet(&opkt);
1417 }
1418 }
1419 }
1420 av_free(buffer_to_free);
1421 /* XXX: allocate the subtitles in the codec ? */
1422 if (subtitle_to_free) {
1423 if (subtitle_to_free->rects != NULL) {
1424 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1425 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1426 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1427 av_freep(&subtitle_to_free->rects[i]);
1428 }
1429 av_freep(&subtitle_to_free->rects);
1430 }
1431 subtitle_to_free->num_rects = 0;
1432 subtitle_to_free = NULL;
1433 }
1434 }
1435 discard_packet:
1436 if (pkt == NULL) {
1437 /* EOF handling */
1438
1439 for(i=0;i<nb_ostreams;i++) {
1440 ost = ost_table[i];
1441 if (ost->source_index == ist_index) {
1442 AVCodecContext *enc= ost->st->codec;
1443 os = output_files[ost->file_index];
1444
1445 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1446 continue;
1447 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1448 continue;
1449
1450 if (ost->encoding_needed) {
1451 for(;;) {
1452 AVPacket pkt;
1453 int fifo_bytes;
1454 av_init_packet(&pkt);
1455 pkt.stream_index= ost->index;
1456
1457 switch(ost->st->codec->codec_type) {
1458 case CODEC_TYPE_AUDIO:
1459 fifo_bytes = av_fifo_size(ost->fifo);
1460 ret = 0;
1461 /* encode any samples remaining in fifo */
1462 if (fifo_bytes > 0) {
1463 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1464 int fs_tmp = enc->frame_size;
1465
1466 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1467 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1468 enc->frame_size = fifo_bytes / (osize * enc->channels);
1469 } else { /* pad */
1470 int frame_bytes = enc->frame_size*osize*enc->channels;
1471 if (samples_size < frame_bytes)
1472 av_exit(1);
1473 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1474 }
1475
1476 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1477 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1478 ost->st->time_base.num, enc->sample_rate);
1479 enc->frame_size = fs_tmp;
1480 }
1481 if(ret <= 0) {
1482 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1483 }
1484 if (ret < 0) {
1485 fprintf(stderr, "Audio encoding failed\n");
1486 av_exit(1);
1487 }
1488 audio_size += ret;
1489 pkt.flags |= PKT_FLAG_KEY;
1490 break;
1491 case CODEC_TYPE_VIDEO:
1492 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1493 if (ret < 0) {
1494 fprintf(stderr, "Video encoding failed\n");
1495 av_exit(1);
1496 }
1497 video_size += ret;
1498 if(enc->coded_frame && enc->coded_frame->key_frame)
1499 pkt.flags |= PKT_FLAG_KEY;
1500 if (ost->logfile && enc->stats_out) {
1501 fprintf(ost->logfile, "%s", enc->stats_out);
1502 }
1503 break;
1504 default:
1505 ret=-1;
1506 }
1507
1508 if(ret<=0)
1509 break;
1510 pkt.data= bit_buffer;
1511 pkt.size= ret;
1512 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1513 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1514 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1515 }
1516 }
1517 }
1518 }
1519 }
1520
1521 return 0;
1522 fail_decode:
1523 return -1;
1524 }
1525
1526 static void print_sdp(AVFormatContext **avc, int n)
1527 {
1528 char sdp[2048];
1529
1530 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1531 printf("SDP:\n%s\n", sdp);
1532 fflush(stdout);
1533 }
1534
1535 static int stream_index_from_inputs(AVFormatContext **input_files,
1536 int nb_input_files,
1537 AVInputFile *file_table,
1538 AVInputStream **ist_table,
1539 enum CodecType type,
1540 int programid)
1541 {
1542 int p, q, z;
1543 for(z=0; z<nb_input_files; z++) {
1544 AVFormatContext *ic = input_files[z];
1545 for(p=0; p<ic->nb_programs; p++) {
1546 AVProgram *program = ic->programs[p];
1547 if(program->id != programid)
1548 continue;
1549 for(q=0; q<program->nb_stream_indexes; q++) {
1550 int sidx = program->stream_index[q];
1551 int ris = file_table[z].ist_index + sidx;
1552 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1553 return ris;
1554 }
1555 }
1556 }
1557
1558 return -1;
1559 }
1560
1561 /*
1562 * The following code is the main loop of the file converter
1563 */
1564 static int av_encode(AVFormatContext **output_files,
1565 int nb_output_files,
1566 AVFormatContext **input_files,
1567 int nb_input_files,
1568 AVStreamMap *stream_maps, int nb_stream_maps)
1569 {
1570 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1571 AVFormatContext *is, *os;
1572 AVCodecContext *codec, *icodec;
1573 AVOutputStream *ost, **ost_table = NULL;
1574 AVInputStream *ist, **ist_table = NULL;
1575 AVInputFile *file_table;
1576 char error[1024];
1577 int key;
1578 int want_sdp = 1;
1579 uint8_t no_packet[MAX_FILES]={0};
1580 int no_packet_count=0;
1581
1582 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1583 if (!file_table)
1584 goto fail;
1585
1586 /* input stream init */
1587 j = 0;
1588 for(i=0;i<nb_input_files;i++) {
1589 is = input_files[i];
1590 file_table[i].ist_index = j;
1591 file_table[i].nb_streams = is->nb_streams;
1592 j += is->nb_streams;
1593 }
1594 nb_istreams = j;
1595
1596 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1597 if (!ist_table)
1598 goto fail;
1599
1600 for(i=0;i<nb_istreams;i++) {
1601 ist = av_mallocz(sizeof(AVInputStream));
1602 if (!ist)
1603 goto fail;
1604 ist_table[i] = ist;
1605 }
1606 j = 0;
1607 for(i=0;i<nb_input_files;i++) {
1608 is = input_files[i];
1609 for(k=0;k<is->nb_streams;k++) {
1610 ist = ist_table[j++];
1611 ist->st = is->streams[k];
1612 ist->file_index = i;
1613 ist->index = k;
1614 ist->discard = 1; /* the stream is discarded by default
1615 (changed later) */
1616
1617 if (rate_emu) {
1618 ist->start = av_gettime();
1619 }
1620 }
1621 }
1622
1623 /* output stream init */
1624 nb_ostreams = 0;
1625 for(i=0;i<nb_output_files;i++) {
1626 os = output_files[i];
1627 if (!os->nb_streams) {
1628 dump_format(output_files[i], i, output_files[i]->filename, 1);
1629 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1630 av_exit(1);
1631 }
1632 nb_ostreams += os->nb_streams;
1633 }
1634 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1635 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1636 av_exit(1);
1637 }
1638
1639 /* Sanity check the mapping args -- do the input files & streams exist? */
1640 for(i=0;i<nb_stream_maps;i++) {
1641 int fi = stream_maps[i].file_index;
1642 int si = stream_maps[i].stream_index;
1643
1644 if (fi < 0 || fi > nb_input_files - 1 ||
1645 si < 0 || si > file_table[fi].nb_streams - 1) {
1646 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1647 av_exit(1);
1648 }
1649 fi = stream_maps[i].sync_file_index;
1650 si = stream_maps[i].sync_stream_index;
1651 if (fi < 0 || fi > nb_input_files - 1 ||
1652 si < 0 || si > file_table[fi].nb_streams - 1) {
1653 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1654 av_exit(1);
1655 }
1656 }
1657
1658 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1659 if (!ost_table)
1660 goto fail;
1661 for(i=0;i<nb_ostreams;i++) {
1662 ost = av_mallocz(sizeof(AVOutputStream));
1663 if (!ost)
1664 goto fail;
1665 ost_table[i] = ost;
1666 }
1667
1668 n = 0;
1669 for(k=0;k<nb_output_files;k++) {
1670 os = output_files[k];
1671 for(i=0;i<os->nb_streams;i++,n++) {
1672 int found;
1673 ost = ost_table[n];
1674 ost->file_index = k;
1675 ost->index = i;
1676 ost->st = os->streams[i];
1677 if (nb_stream_maps > 0) {
1678 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1679 stream_maps[n].stream_index;
1680
1681 /* Sanity check that the stream types match */
1682 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1683 int i= ost->file_index;
1684 dump_format(output_files[i], i, output_files[i]->filename, 1);
1685 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1686 stream_maps[n].file_index, stream_maps[n].stream_index,
1687 ost->file_index, ost->index);
1688 av_exit(1);
1689 }
1690
1691 } else {
1692 if(opt_programid) {
1693 found = 0;
1694 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1695 if(j != -1) {
1696 ost->source_index = j;
1697 found = 1;
1698 }
1699 } else {
1700 /* get corresponding input stream index : we select the first one with the right type */
1701 found = 0;
1702 for(j=0;j<nb_istreams;j++) {
1703 ist = ist_table[j];
1704 if (ist->discard &&
1705 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1706 ost->source_index = j;
1707 found = 1;
1708 break;
1709 }
1710 }
1711 }
1712
1713 if (!found) {
1714 if(! opt_programid) {
1715 /* try again and reuse existing stream */
1716 for(j=0;j<nb_istreams;j++) {
1717 ist = ist_table[j];
1718 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1719 ost->source_index = j;
1720 found = 1;
1721 }
1722 }
1723 }
1724 if (!found) {
1725 int i= ost->file_index;
1726 dump_format(output_files[i], i, output_files[i]->filename, 1);
1727 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1728 ost->file_index, ost->index);
1729 av_exit(1);
1730 }
1731 }
1732 }
1733 ist = ist_table[ost->source_index];
1734 ist->discard = 0;
1735 ost->sync_ist = (nb_stream_maps > 0) ?
1736 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1737 stream_maps[n].sync_stream_index] : ist;
1738 }
1739 }
1740
1741 /* for each output stream, we compute the right encoding parameters */
1742 for(i=0;i<nb_ostreams;i++) {
1743 AVMetadataTag *lang;
1744 ost = ost_table[i];
1745 os = output_files[ost->file_index];
1746 ist = ist_table[ost->source_index];
1747
1748 codec = ost->st->codec;
1749 icodec = ist->st->codec;
1750
1751 if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
1752 && !av_metadata_get(ost->st->metadata, "language", NULL, 0))
1753 av_metadata_set(&ost->st->metadata, "language", lang->value);
1754
1755 ost->st->disposition = ist->st->disposition;
1756 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1757 codec->chroma_sample_location = icodec->chroma_sample_location;
1758
1759 if (ost->st->stream_copy) {
1760 /* if stream_copy is selected, no need to decode or encode */
1761 codec->codec_id = icodec->codec_id;
1762 codec->codec_type = icodec->codec_type;
1763
1764 if(!codec->codec_tag){
1765 if( !os->oformat->codec_tag
1766 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1767 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1768 codec->codec_tag = icodec->codec_tag;
1769 }
1770
1771 codec->bit_rate = icodec->bit_rate;
1772 codec->extradata= icodec->extradata;
1773 codec->extradata_size= icodec->extradata_size;
1774 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
1775 codec->time_base = icodec->time_base;
1776 codec->time_base.num *= icodec->ticks_per_frame;
1777 }else
1778 codec->time_base = ist->st->time_base;
1779 switch(codec->codec_type) {
1780 case CODEC_TYPE_AUDIO:
1781 if(audio_volume != 256) {
1782 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1783 av_exit(1);
1784 }
1785 codec->channel_layout = icodec->channel_layout;
1786 codec->sample_rate = icodec->sample_rate;
1787 codec->channels = icodec->channels;
1788 codec->frame_size = icodec->frame_size;
1789 codec->block_align= icodec->block_align;
1790 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1791 codec->block_align= 0;
1792 if(codec->codec_id == CODEC_ID_AC3)
1793 codec->block_align= 0;
1794 break;
1795 case CODEC_TYPE_VIDEO:
1796 codec->pix_fmt = icodec->pix_fmt;
1797 codec->width = icodec->width;
1798 codec->height = icodec->height;
1799 codec->has_b_frames = icodec->has_b_frames;
1800 break;
1801 case CODEC_TYPE_SUBTITLE:
1802 codec->width = icodec->width;
1803 codec->height = icodec->height;
1804 break;
1805 default:
1806 abort();
1807 }
1808 } else {
1809 switch(codec->codec_type) {
1810 case CODEC_TYPE_AUDIO:
1811 ost->fifo= av_fifo_alloc(1024);
1812 if(!ost->fifo)
1813 goto fail;
1814 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1815 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1816 icodec->request_channels = codec->channels;
1817 ist->decoding_needed = 1;
1818 ost->encoding_needed = 1;
1819 break;
1820 case CODEC_TYPE_VIDEO:
1821 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1822 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1823 ost->video_resample = ((codec->width != icodec->width -
1824 (frame_leftBand + frame_rightBand) +
1825 (frame_padleft + frame_padright)) ||
1826 (codec->height != icodec->height -
1827 (frame_topBand + frame_bottomBand) +
1828 (frame_padtop + frame_padbottom)) ||
1829 (codec->pix_fmt != icodec->pix_fmt));
1830 if (ost->video_crop) {
1831 ost->topBand = frame_topBand;
1832 ost->leftBand = frame_leftBand;
1833 }
1834 if (ost->video_pad) {
1835 ost->padtop = frame_padtop;
1836 ost->padleft = frame_padleft;
1837 ost->padbottom = frame_padbottom;
1838 ost->padright = frame_padright;
1839 if (!ost->video_resample) {
1840 avcodec_get_frame_defaults(&ost->pict_tmp);
1841 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1842 codec->width, codec->height))
1843 goto fail;
1844 }
1845 }
1846 if (ost->video_resample) {
1847 avcodec_get_frame_defaults(&ost->pict_tmp);
1848 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1849 codec->width, codec->height)) {
1850 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1851 av_exit(1);
1852 }
1853 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1854 ost->img_resample_ctx = sws_getContext(
1855 icodec->width - (frame_leftBand + frame_rightBand),
1856 icodec->height - (frame_topBand + frame_bottomBand),
1857 icodec->pix_fmt,
1858 codec->width - (frame_padleft + frame_padright),
1859 codec->height - (frame_padtop + frame_padbottom),
1860 codec->pix_fmt,
1861 sws_flags, NULL, NULL, NULL);
1862 if (ost->img_resample_ctx == NULL) {
1863 fprintf(stderr, "Cannot get resampling context\n");
1864 av_exit(1);
1865 }
1866 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1867 codec->bits_per_raw_sample= 0;
1868 }
1869 ost->encoding_needed = 1;
1870 ist->decoding_needed = 1;
1871 break;
1872 case CODEC_TYPE_SUBTITLE:
1873 ost->encoding_needed = 1;
1874 ist->decoding_needed = 1;
1875 break;
1876 default:
1877 abort();
1878 break;
1879 }
1880 /* two pass mode */
1881 if (ost->encoding_needed &&
1882 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1883 char logfilename[1024];
1884 FILE *f;
1885 int size;
1886 char *logbuffer;
1887
1888 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1889 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1890 i);
1891 if (codec->flags & CODEC_FLAG_PASS1) {
1892 f = fopen(logfilename, "w");
1893 if (!f) {
1894 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1895 av_exit(1);
1896 }
1897 ost->logfile = f;
1898 } else {
1899 /* read the log file */
1900 f = fopen(logfilename, "r");
1901 if (!f) {
1902 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
1903 av_exit(1);
1904 }
1905 fseek(f, 0, SEEK_END);
1906 size = ftell(f);
1907 fseek(f, 0, SEEK_SET);
1908 logbuffer = av_malloc(size + 1);
1909 if (!logbuffer) {
1910 fprintf(stderr, "Could not allocate log buffer\n");
1911 av_exit(1);
1912 }
1913 size = fread(logbuffer, 1, size, f);
1914 fclose(f);
1915 logbuffer[size] = '\0';
1916 codec->stats_in = logbuffer;
1917 }
1918 }
1919 }
1920 if(codec->codec_type == CODEC_TYPE_VIDEO){
1921 int size= codec->width * codec->height;
1922 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
1923 }
1924 }
1925
1926 if (!bit_buffer)
1927 bit_buffer = av_malloc(bit_buffer_size);
1928 if (!bit_buffer) {
1929 ret = AVERROR(ENOMEM);
1930 goto fail;
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 snprintf(error, sizeof(error), "Unsupported codec for output stream #%d.%d",
1942 ost->file_index, ost->index);
1943 ret = AVERROR(EINVAL);
1944 goto dump_format;
1945 }
1946 if (avcodec_open(ost->st->codec, codec) < 0) {
1947 snprintf(error, sizeof(error), "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1948 ost->file_index, ost->index);
1949 ret = AVERROR(EINVAL);
1950 goto dump_format;
1951 }
1952 extra_size += ost->st->codec->extradata_size;
1953 }
1954 }
1955
1956 /* open each decoder */
1957 for(i=0;i<nb_istreams;i++) {
1958 ist = ist_table[i];
1959 if (ist->decoding_needed) {
1960 AVCodec *codec = input_codecs[i];
1961 if (!codec)
1962 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1963 if (!codec) {
1964 snprintf(error, sizeof(error), "Unsupported codec (id=%d) for input stream #%d.%d",
1965 ist->st->codec->codec_id, ist->file_index, ist->index);
1966 ret = AVERROR(EINVAL);
1967 goto dump_format;
1968 }
1969 if (avcodec_open(ist->st->codec, codec) < 0) {
1970 snprintf(error, sizeof(error), "Error while opening codec for input stream #%d.%d",
1971 ist->file_index, ist->index);
1972 ret = AVERROR(EINVAL);
1973 goto dump_format;
1974 }
1975 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1976 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1977 }
1978 }
1979
1980 /* init pts */
1981 for(i=0;i<nb_istreams;i++) {
1982 ist = ist_table[i];
1983 ist->pts = 0;
1984 ist->next_pts = AV_NOPTS_VALUE;
1985 ist->is_start = 1;
1986 }
1987
1988 /* set meta data information from input file if required */
1989 for (i=0;i<nb_meta_data_maps;i++) {
1990 AVFormatContext *out_file;
1991 AVFormatContext *in_file;
1992 AVMetadataTag *mtag;
1993
1994 int out_file_index = meta_data_maps[i].out_file;
1995 int in_file_index = meta_data_maps[i].in_file;
1996 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1997 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
1998 out_file_index, out_file_index, in_file_index);
1999 ret = AVERROR(EINVAL);
2000 goto dump_format;
2001 }
2002 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2003 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2004 in_file_index, out_file_index, in_file_index);
2005 ret = AVERROR(EINVAL);
2006 goto dump_format;
2007 }
2008
2009 out_file = output_files[out_file_index];
2010 in_file = input_files[in_file_index];
2011
2012
2013 mtag=NULL;
2014 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2015 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
2016 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2017 in_file->iformat->metadata_conv);
2018 }
2019
2020 /* open files and write file headers */
2021 for(i=0;i<nb_output_files;i++) {
2022 os = output_files[i];
2023 if (av_write_header(os) < 0) {
2024 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2025 ret = AVERROR(EINVAL);
2026 goto dump_format;
2027 }
2028 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2029 want_sdp = 0;
2030 }
2031 }
2032
2033 dump_format:
2034 /* dump the file output parameters - cannot be done before in case
2035 of stream copy */
2036 for(i=0;i<nb_output_files;i++) {
2037 dump_format(output_files[i], i, output_files[i]->filename, 1);
2038 }
2039
2040 /* dump the stream mapping */
2041 if (verbose >= 0) {
2042 fprintf(stderr, "Stream mapping:\n");
2043 for(i=0;i<nb_ostreams;i++) {
2044 ost = ost_table[i];
2045 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2046 ist_table[ost->source_index]->file_index,
2047 ist_table[ost->source_index]->index,
2048 ost->file_index,
2049 ost->index);
2050 if (ost->sync_ist != ist_table[ost->source_index])
2051 fprintf(stderr, " [sync #%d.%d]",
2052 ost->sync_ist->file_index,
2053 ost->sync_ist->index);
2054 fprintf(stderr, "\n");
2055 }
2056 }
2057
2058 if (ret) {
2059 fprintf(stderr, "%s\n", error);
2060 goto fail;
2061 }
2062
2063 if (want_sdp) {
2064 print_sdp(output_files, nb_output_files);
2065 }
2066
2067 if (!using_stdin && verbose >= 0) {
2068 fprintf(stderr, "Press [q] to stop encoding\n");
2069 url_set_interrupt_cb(decode_interrupt_cb);
2070 }
2071 term_init();
2072
2073 timer_start = av_gettime();
2074
2075 for(; received_sigterm == 0;) {
2076 int file_index, ist_index;
2077 AVPacket pkt;
2078 double ipts_min;
2079 double opts_min;
2080
2081 redo:
2082 ipts_min= 1e100;
2083 opts_min= 1e100;
2084 /* if 'q' pressed, exits */
2085 if (!using_stdin) {
2086 if (q_pressed)
2087 break;
2088 /* read_key() returns 0 on EOF */
2089 key = read_key();
2090 if (key == 'q')
2091 break;
2092 }
2093
2094 /* select the stream that we must read now by looking at the
2095 smallest output pts */
2096 file_index = -1;
2097 for(i=0;i<nb_ostreams;i++) {
2098 double ipts, opts;
2099 ost = ost_table[i];
2100 os = output_files[ost->file_index];
2101 ist = ist_table[ost->source_index];
2102 if(no_packet[ist->file_index])
2103 continue;
2104 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2105 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2106 else
2107 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2108 ipts = (double)ist->pts;
2109 if (!file_table[ist->file_index].eof_reached){
2110 if(ipts < ipts_min) {
2111 ipts_min = ipts;
2112 if(input_sync ) file_index = ist->file_index;
2113 }
2114 if(opts < opts_min) {
2115 opts_min = opts;
2116 if(!input_sync) file_index = ist->file_index;
2117 }
2118 }
2119 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2120 file_index= -1;
2121 break;
2122 }
2123 }
2124 /* if none, if is finished */
2125 if (file_index < 0) {
2126 if(no_packet_count){
2127 no_packet_count=0;
2128 memset(no_packet, 0, sizeof(no_packet));
2129 usleep(10000);
2130 continue;
2131 }
2132 break;
2133 }
2134
2135 /* finish if recording time exhausted */
2136 if (opts_min >= (recording_time / 1000000.0))
2137 break;
2138
2139 /* finish if limit size exhausted */
2140 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2141 break;
2142
2143 /* read a frame from it and output it in the fifo */
2144 is = input_files[file_index];
2145 ret= av_read_frame(is, &pkt);
2146 if(ret == AVERROR(EAGAIN)){
2147 no_packet[file_index]=1;
2148 no_packet_count++;
2149 continue;
2150 }
2151 if (ret < 0) {
2152 file_table[file_index].eof_reached = 1;
2153 if (opt_shortest)
2154 break;
2155 else
2156 continue;
2157 }
2158
2159 no_packet_count=0;
2160 memset(no_packet, 0, sizeof(no_packet));
2161
2162 if (do_pkt_dump) {
2163 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2164 }
2165 /* the following test is needed in case new streams appear
2166 dynamically in stream : we ignore them */
2167 if (pkt.stream_index >= file_table[file_index].nb_streams)
2168 goto discard_packet;
2169 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2170 ist = ist_table[ist_index];
2171 if (ist->discard)
2172 goto discard_packet;
2173
2174 if (pkt.dts != AV_NOPTS_VALUE)
2175 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2176 if (pkt.pts != AV_NOPTS_VALUE)
2177 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2178
2179 if(input_files_ts_scale[file_index][pkt.stream_index]){
2180 if(pkt.pts != AV_NOPTS_VALUE)
2181 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2182 if(pkt.dts != AV_NOPTS_VALUE)
2183 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2184 }
2185
2186 // 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);
2187 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2188 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2189 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2190 int64_t delta= pkt_dts - ist->next_pts;
2191 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2192 input_files_ts_offset[ist->file_index]-= delta;
2193 if (verbose > 2)
2194 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2195 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2196 if(pkt.pts != AV_NOPTS_VALUE)
2197 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2198 }
2199 }
2200
2201 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2202 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2203
2204 if (verbose >= 0)
2205 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2206 ist->file_index, ist->index);
2207 if (exit_on_error)
2208 av_exit(1);
2209 av_free_packet(&pkt);
2210 goto redo;
2211 }
2212
2213 discard_packet:
2214 av_free_packet(&pkt);
2215
2216 /* dump report by using the output first video and audio streams */
2217 print_report(output_files, ost_table, nb_ostreams, 0);
2218 }
2219
2220 /* at the end of stream, we must flush the decoder buffers */
2221 for(i=0;i<nb_istreams;i++) {
2222 ist = ist_table[i];
2223 if (ist->decoding_needed) {
2224 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2225 }
2226 }
2227
2228 term_exit();
2229
2230 /* write the trailer if needed and close file */
2231 for(i=0;i<nb_output_files;i++) {
2232 os = output_files[i];
2233 av_write_trailer(os);
2234 }
2235
2236 /* dump report by using the first video and audio streams */
2237 print_report(output_files, ost_table, nb_ostreams, 1);
2238
2239 /* close each encoder */
2240 for(i=0;i<nb_ostreams;i++) {
2241 ost = ost_table[i];
2242 if (ost->encoding_needed) {
2243 av_freep(&ost->st->codec->stats_in);
2244 avcodec_close(ost->st->codec);
2245 }
2246 }
2247
2248 /* close each decoder */
2249 for(i=0;i<nb_istreams;i++) {
2250 ist = ist_table[i];
2251 if (ist->decoding_needed) {
2252 avcodec_close(ist->st->codec);
2253 }
2254 }
2255
2256 /* finished ! */
2257 ret = 0;
2258
2259 fail:
2260 av_freep(&bit_buffer);
2261 av_free(file_table);
2262
2263 if (ist_table) {
2264 for(i=0;i<nb_istreams;i++) {
2265 ist = ist_table[i];
2266 av_free(ist);
2267 }
2268 av_free(ist_table);
2269 }
2270 if (ost_table) {
2271 for(i=0;i<nb_ostreams;i++) {
2272 ost = ost_table[i];
2273 if (ost) {
2274 if (ost->logfile) {
2275 fclose(ost->logfile);
2276 ost->logfile = NULL;
2277 }
2278 av_fifo_free(ost->fifo); /* works even if fifo is not
2279 initialized but set to zero */
2280 av_free(ost->pict_tmp.data[0]);
2281 if (ost->video_resample)
2282 sws_freeContext(ost->img_resample_ctx);
2283 if (ost->resample)
2284 audio_resample_close(ost->resample);
2285 if (ost->reformat_ctx)
2286 av_audio_convert_free(ost->reformat_ctx);
2287 av_free(ost);
2288 }
2289 }
2290 av_free(ost_table);
2291 }
2292 return ret;
2293 }
2294
2295 #if 0
2296 int file_read(const char *filename)
2297 {
2298 URLContext *h;
2299 unsigned char buffer[1024];
2300 int len, i;
2301
2302 if (url_open(&h, filename, O_RDONLY) < 0) {
2303 printf("could not open '%s'\n", filename);
2304 return -1;
2305 }
2306 for(;;) {
2307 len = url_read(h, buffer, sizeof(buffer));
2308 if (len <= 0)
2309 break;
2310 for(i=0;i<len;i++) putchar(buffer[i]);
2311 }
2312 url_close(h);
2313 return 0;
2314 }
2315 #endif
2316
2317 static void opt_format(const char *arg)
2318 {
2319 /* compatibility stuff for pgmyuv */
2320 if (!strcmp(arg, "pgmyuv")) {
2321 pgmyuv_compatibility_hack=1;
2322 // opt_image_format(arg);
2323 arg = "image2";
2324 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2325 }
2326
2327 file_iformat = av_find_input_format(arg);
2328 file_oformat = guess_format(arg, NULL, NULL);
2329 if (!file_iformat && !file_oformat) {
2330 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2331 av_exit(1);
2332 }
2333 }
2334
2335 static void opt_video_rc_override_string(const char *arg)
2336 {
2337 video_rc_override_string = arg;
2338 }
2339
2340 static int opt_me_threshold(const char *opt, const char *arg)
2341 {
2342 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2343 return 0;
2344 }
2345
2346 static int opt_loglevel(const char *opt, const char *arg)
2347 {
2348 int level = parse_number_or_die(opt, arg, OPT_INT, INT_MIN, INT_MAX);
2349 av_log_set_level(level);
2350 return 0;
2351 }
2352
2353 static int opt_verbose(const char *opt, const char *arg)
2354 {
2355 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2356 return 0;
2357 }
2358
2359 static int opt_frame_rate(const char *opt, const char *arg)
2360 {
2361 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2362 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2363 av_exit(1);
2364 }
2365 return 0;
2366 }
2367
2368 static int opt_bitrate(const char *opt, const char *arg)
2369 {
2370 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2371
2372 opt_default(opt, arg);
2373
2374 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2375 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2376
2377 return 0;
2378 }
2379
2380 static void opt_frame_crop_top(const char *arg)
2381 {
2382 frame_topBand = atoi(arg);
2383 if (frame_topBand < 0) {
2384 fprintf(stderr, "Incorrect top crop size\n");
2385 av_exit(1);
2386 }
2387 if ((frame_topBand % 2) != 0) {
2388 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2389 av_exit(1);
2390 }
2391 if ((frame_topBand) >= frame_height){
2392 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2393 av_exit(1);
2394 }
2395 frame_height -= frame_topBand;
2396 }
2397
2398 static void opt_frame_crop_bottom(const char *arg)
2399 {
2400 frame_bottomBand = atoi(arg);
2401 if (frame_bottomBand < 0) {
2402 fprintf(stderr, "Incorrect bottom crop size\n");
2403 av_exit(1);
2404 }
2405 if ((frame_bottomBand % 2) != 0) {
2406 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2407 av_exit(1);
2408 }
2409 if ((frame_bottomBand) >= frame_height){
2410 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2411 av_exit(1);
2412 }
2413 frame_height -= frame_bottomBand;
2414 }
2415
2416 static void opt_frame_crop_left(const char *arg)
2417 {
2418 frame_leftBand = atoi(arg);
2419 if (frame_leftBand < 0) {
2420 fprintf(stderr, "Incorrect left crop size\n");
2421 av_exit(1);
2422 }
2423 if ((frame_leftBand % 2) != 0) {
2424 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2425 av_exit(1);
2426 }
2427 if ((frame_leftBand) >= frame_width){
2428 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2429 av_exit(1);
2430 }
2431 frame_width -= frame_leftBand;
2432 }
2433
2434 static void opt_frame_crop_right(const char *arg)
2435 {
2436 frame_rightBand = atoi(arg);
2437 if (frame_rightBand < 0) {
2438 fprintf(stderr, "Incorrect right crop size\n");
2439 av_exit(1);
2440 }
2441 if ((frame_rightBand % 2) != 0) {
2442 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2443 av_exit(1);
2444 }
2445 if ((frame_rightBand) >= frame_width){
2446 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2447 av_exit(1);
2448 }
2449 frame_width -= frame_rightBand;
2450 }
2451
2452 static void opt_frame_size(const char *arg)
2453 {
2454 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2455 fprintf(stderr, "Incorrect frame size\n");
2456 av_exit(1);
2457 }
2458 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2459 fprintf(stderr, "Frame size must be a multiple of 2\n");
2460 av_exit(1);
2461 }
2462 }
2463
2464 static void opt_pad_color(const char *arg) {
2465 /* Input is expected to be six hex digits similar to
2466 how colors are expressed in html tags (but without the #) */
2467 int rgb = strtol(arg, NULL, 16);
2468 int r,g,b;
2469
2470 r = (rgb >> 16);
2471 g = ((rgb >> 8) & 255);
2472 b = (rgb & 255);
2473
2474 padcolor[0] = RGB_TO_Y(r,g,b);
2475 padcolor[1] = RGB_TO_U(r,g,b,0);
2476 padcolor[2] = RGB_TO_V(r,g,b,0);
2477 }
2478
2479 static void opt_frame_pad_top(const char *arg)
2480 {
2481 frame_padtop = atoi(arg);
2482 if (frame_padtop < 0) {
2483 fprintf(stderr, "Incorrect top pad size\n");
2484 av_exit(1);
2485 }
2486 if ((frame_padtop % 2) != 0) {
2487 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2488 av_exit(1);
2489 }
2490 }
2491
2492 static void opt_frame_pad_bottom(const char *arg)
2493 {
2494 frame_padbottom = atoi(arg);
2495 if (frame_padbottom < 0) {
2496 fprintf(stderr, "Incorrect bottom pad size\n");
2497 av_exit(1);
2498 }
2499 if ((frame_padbottom % 2) != 0) {
2500 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2501 av_exit(1);
2502 }
2503 }
2504
2505
2506 static void opt_frame_pad_left(const char *arg)
2507 {
2508 frame_padleft = atoi(arg);
2509 if (frame_padleft < 0) {
2510 fprintf(stderr, "Incorrect left pad size\n");
2511 av_exit(1);
2512 }
2513 if ((frame_padleft % 2) != 0) {
2514 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2515 av_exit(1);
2516 }
2517 }
2518
2519
2520 static void opt_frame_pad_right(const char *arg)
2521 {
2522 frame_padright = atoi(arg);
2523 if (frame_padright < 0) {
2524 fprintf(stderr, "Incorrect right pad size\n");
2525 av_exit(1);
2526 }
2527 if ((frame_padright % 2) != 0) {
2528 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2529 av_exit(1);
2530 }
2531 }
2532
2533 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2534 {
2535 int i;
2536 char fmt_str[128];
2537 for (i=-1; i < nb_fmts; i++) {
2538 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2539 fprintf(stdout, "%s\n", fmt_str);
2540 }
2541 }
2542
2543 static void opt_frame_pix_fmt(const char *arg)
2544 {
2545 if (strcmp(arg, "list")) {
2546 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2547 if (frame_pix_fmt == PIX_FMT_NONE) {
2548 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2549 av_exit(1);
2550 }
2551 } else {
2552 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2553 av_exit(0);
2554 }
2555 }
2556
2557 static void opt_frame_aspect_ratio(const char *arg)
2558 {
2559 int x = 0, y = 0;
2560 double ar = 0;
2561 const char *p;
2562 char *end;
2563
2564 p = strchr(arg, ':');
2565 if (p) {
2566 x = strtol(arg, &end, 10);
2567 if (end == p)
2568 y = strtol(end+1, &end, 10);
2569 if (x > 0 && y > 0)
2570 ar = (double)x / (double)y;
2571 } else
2572 ar = strtod(arg, NULL);
2573
2574 if (!ar) {
2575 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2576 av_exit(1);
2577 }
2578 frame_aspect_ratio = ar;
2579 }
2580
2581 static int opt_metadata(const char *opt, const char *arg)
2582 {
2583 char *mid= strchr(arg, '=');
2584
2585 if(!mid){
2586 fprintf(stderr, "Missing =\n");
2587 av_exit(1);
2588 }
2589 *mid++= 0;
2590
2591 metadata_count++;
2592 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2593 metadata[metadata_count-1].key = av_strdup(arg);
2594 metadata[metadata_count-1].value= av_strdup(mid);
2595
2596 return 0;
2597 }
2598
2599 static void opt_qscale(const char *arg)
2600 {
2601 video_qscale = atof(arg);
2602 if (video_qscale <= 0 ||
2603 video_qscale > 255) {
2604 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2605 av_exit(1);
2606 }
2607 }
2608
2609 static void opt_top_field_first(const char *arg)
2610 {
2611 top_field_first= atoi(arg);
2612 }
2613
2614 static int opt_thread_count(const char *opt, const char *arg)
2615 {
2616 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2617 #if !HAVE_THREADS
2618 if (verbose >= 0)
2619 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2620 #endif
2621 return 0;
2622 }
2623
2624 static void opt_audio_sample_fmt(const char *arg)
2625 {
2626 if (strcmp(arg, "list"))
2627 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2628 else {
2629 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2630 av_exit(0);
2631 }
2632 }
2633
2634 static int opt_audio_rate(const char *opt, const char *arg)
2635 {
2636 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2637 return 0;
2638 }
2639
2640 static int opt_audio_channels(const char *opt, const char *arg)
2641 {
2642 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2643 return 0;
2644 }
2645
2646 static void opt_video_channel(const char *arg)
2647 {
2648 video_channel = strtol(arg, NULL, 0);
2649 }
2650
2651 static void opt_video_standard(const char *arg)
2652 {
2653 video_standard = av_strdup(arg);
2654 }
2655
2656 static void opt_codec(int *pstream_copy, char **pcodec_name,
2657 int codec_type, const char *arg)
2658 {
2659 av_freep(pcodec_name);
2660 if (!strcmp(arg, "copy")) {
2661 *pstream_copy = 1;
2662 } else {
2663 *pcodec_name = av_strdup(arg);
2664 }
2665 }
2666
2667 static void opt_audio_codec(const char *arg)
2668 {
2669 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2670 }
2671
2672 static void opt_audio_tag(const char *arg)
2673 {
2674 char *tail;
2675 audio_codec_tag= strtol(arg, &tail, 0);
2676
2677 if(!tail || *tail)
2678 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2679 }
2680
2681 static void opt_video_tag(const char *arg)
2682 {
2683 char *tail;
2684 video_codec_tag= strtol(arg, &tail, 0);
2685
2686 if(!tail || *tail)
2687 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2688 }
2689
2690 static void opt_video_codec(const char *arg)
2691 {
2692 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2693 }
2694
2695 static void opt_subtitle_codec(const char *arg)
2696 {
2697 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2698 }
2699
2700 static void opt_subtitle_tag(const char *arg)
2701 {
2702 char *tail;
2703 subtitle_codec_tag= strtol(arg, &tail, 0);
2704
2705 if(!tail || *tail)
2706 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2707 }
2708
2709 static void opt_map(const char *arg)
2710 {
2711 AVStreamMap *m;
2712 char *p;
2713
2714 m = &stream_maps[nb_stream_maps++];
2715
2716 m->file_index = strtol(arg, &p, 0);
2717 if (*p)
2718 p++;
2719
2720 m->stream_index = strtol(p, &p, 0);
2721 if (*p) {
2722 p++;
2723 m->sync_file_index = strtol(p, &p, 0);
2724 if (*p)
2725 p++;
2726 m->sync_stream_index = strtol(p, &p, 0);
2727 } else {
2728 m->sync_file_index = m->file_index;
2729 m->sync_stream_index = m->stream_index;
2730 }
2731 }
2732
2733 static void opt_map_meta_data(const char *arg)
2734 {
2735 AVMetaDataMap *m;
2736 char *p;
2737
2738 m = &meta_data_maps[nb_meta_data_maps++];
2739
2740 m->out_file = strtol(arg, &p, 0);
2741 if (*p)
2742 p++;
2743
2744 m->in_file = strtol(p, &p, 0);
2745 }
2746
2747 static void opt_input_ts_scale(const char *arg)
2748 {
2749 unsigned int stream;
2750 double scale;
2751 char *p;
2752
2753 stream = strtol(arg, &p, 0);
2754 if (*p)
2755 p++;
2756 scale= strtod(p, &p);
2757
2758 if(stream >= MAX_STREAMS)
2759 av_exit(1);
2760
2761 input_files_ts_scale[nb_input_files][stream]= scale;
2762 }
2763
2764 static int opt_recording_time(const char *opt, const char *arg)
2765 {
2766 recording_time = parse_time_or_die(opt, arg, 1);
2767 return 0;
2768 }
2769
2770 static int opt_start_time(const char *opt, const char *arg)
2771 {
2772 start_time = parse_time_or_die(opt, arg, 1);
2773 return 0;
2774 }
2775
2776 static int opt_rec_timestamp(const char *opt, const char *arg)
2777 {
2778 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2779 return 0;
2780 }
2781
2782 static int opt_input_ts_offset(const char *opt, const char *arg)
2783 {
2784 input_ts_offset = parse_time_or_die(opt, arg, 1);
2785 return 0;
2786 }
2787
2788 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2789 {
2790 const char *codec_string = encoder ? "encoder" : "decoder";
2791 AVCodec *codec;
2792
2793 if(!name)
2794 return CODEC_ID_NONE;
2795 codec = encoder ?
2796 avcodec_find_encoder_by_name(name) :
2797 avcodec_find_decoder_by_name(name);
2798 if(!codec) {
2799 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2800 av_exit(1);
2801 }
2802 if(codec->type != type) {
2803 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2804 av_exit(1);
2805 }
2806 return codec->id;
2807 }
2808
2809 static void opt_input_file(const char *filename)
2810 {
2811 AVFormatContext *ic;
2812 AVFormatParameters params, *ap = &params;
2813 int err, i, ret, rfps, rfps_base;
2814 int64_t timestamp;
2815
2816 if (!strcmp(filename, "-"))
2817 filename = "pipe:";
2818
2819 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2820 !strcmp(filename, "/dev/stdin");
2821
2822 /* get default parameters from command line */
2823 ic = avformat_alloc_context();
2824
2825 memset(ap, 0, sizeof(*ap));
2826 ap->prealloced_context = 1;
2827 ap->sample_rate = audio_sample_rate;
2828 ap->channels = audio_channels;
2829 ap->time_base.den = frame_rate.num;
2830 ap->time_base.num = frame_rate.den;
2831 ap->width = frame_width + frame_padleft + frame_padright;
2832 ap->height = frame_height + frame_padtop + frame_padbottom;
2833 ap->pix_fmt = frame_pix_fmt;
2834 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2835 ap->channel = video_channel;
2836 ap->standard = video_standard;
2837 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2838 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2839 if(pgmyuv_compatibility_hack)
2840 ap->video_codec_id= CODEC_ID_PGMYUV;
2841
2842 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2843
2844 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2845 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2846 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2847 ic->flags |= AVFMT_FLAG_NONBLOCK;
2848
2849 /* open the input file with generic libav function */
2850 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2851 if (err < 0) {
2852 print_error(filename, err);
2853 av_exit(1);
2854 }
2855 if(opt_programid) {
2856 int i;
2857 for(i=0; i<ic->nb_programs; i++)
2858 if(ic->programs[i]->id != opt_programid)
2859 ic->programs[i]->discard = AVDISCARD_ALL;
2860 }
2861
2862 ic->loop_input = loop_input;
2863
2864 /* If not enough info to get the stream parameters, we decode the
2865 first frames to get it. (used in mpeg case for example) */
2866 ret = av_find_stream_info(ic);
2867 if (ret < 0 && verbose >= 0) {
2868 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2869 av_exit(1);
2870 }
2871
2872 timestamp = start_time;
2873 /* add the stream start time */
2874 if (ic->start_time != AV_NOPTS_VALUE)
2875 timestamp += ic->start_time;
2876
2877 /* if seeking requested, we execute it */
2878 if (start_time != 0) {
2879 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2880 if (ret < 0) {
2881 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2882 filename, (double)timestamp / AV_TIME_BASE);
2883 }
2884 /* reset seek info */
2885 start_time = 0;
2886 }
2887
2888 /* update the current parameters so that they match the one of the input stream */
2889 for(i=0;i<ic->nb_streams;i++) {
2890 AVCodecContext *enc = ic->streams[i]->codec;
2891 if(thread_count>1)
2892 avcodec_thread_init(enc, thread_count);
2893 enc->thread_count= thread_count;
2894 switch(enc->codec_type) {
2895 case CODEC_TYPE_AUDIO:
2896 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2897 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2898 channel_layout = enc->channel_layout;
2899 audio_channels = enc->channels;
2900 audio_sample_rate = enc->sample_rate;
2901 audio_sample_fmt = enc->sample_fmt;
2902 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2903 if(audio_disable)
2904 ic->streams[i]->discard= AVDISCARD_ALL;
2905 break;
2906 case CODEC_TYPE_VIDEO:
2907 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2908 frame_height = enc->height;
2909 frame_width = enc->width;
2910 if(ic->streams[i]->sample_aspect_ratio.num)
2911 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2912 else
2913 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2914 frame_aspect_ratio *= (float) enc->width / enc->height;
2915 frame_pix_fmt = enc->pix_fmt;
2916 rfps = ic->streams[i]->r_frame_rate.num;
2917 rfps_base = ic->streams[i]->r_frame_rate.den;
2918 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2919 if(me_threshold)
2920 enc->debug |= FF_DEBUG_MV;
2921
2922 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2923
2924 if (verbose >= 0)
2925 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2926 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2927
2928 (float)rfps / rfps_base, rfps, rfps_base);
2929 }
2930 /* update the current frame rate to match the stream frame rate */
2931 frame_rate.num = rfps;
2932 frame_rate.den = rfps_base;
2933
2934 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2935 if(video_disable)
2936 ic->streams[i]->discard= AVDISCARD_ALL;
2937 else if(video_discard)
2938 ic->streams[i]->discard= video_discard;
2939 break;
2940 case CODEC_TYPE_DATA:
2941 break;
2942 case CODEC_TYPE_SUBTITLE:
2943 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2944 if(subtitle_disable)
2945 ic->streams[i]->discard = AVDISCARD_ALL;
2946 break;
2947 case CODEC_TYPE_ATTACHMENT:
2948 case CODEC_TYPE_UNKNOWN:
2949 nb_icodecs++;
2950 break;
2951 default:
2952 abort();
2953 }
2954 }
2955
2956 input_files[nb_input_files] = ic;
2957 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2958 /* dump the file content */
2959 if (verbose >= 0)
2960 dump_format(ic, nb_input_files, filename, 0);
2961
2962 nb_input_files++;
2963 file_iformat = NULL;
2964 file_oformat = NULL;
2965
2966 video_channel = 0;
2967
2968 av_freep(&video_codec_name);
2969 av_freep(&audio_codec_name);
2970 av_freep(&subtitle_codec_name);
2971 }
2972
2973 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2974 int *has_subtitle_ptr)
2975 {
2976 int has_video, has_audio, has_subtitle, i, j;
2977 AVFormatContext *ic;
2978
2979 has_video = 0;
2980 has_audio = 0;
2981 has_subtitle = 0;
2982 for(j=0;j<nb_input_files;j++) {
2983 ic = input_files[j];
2984 for(i=0;i<ic->nb_streams;i++) {
2985 AVCodecContext *enc = ic->streams[i]->codec;
2986 switch(enc->codec_type) {
2987 case CODEC_TYPE_AUDIO:
2988 has_audio = 1;
2989 break;
2990 case CODEC_TYPE_VIDEO:
2991 has_video = 1;
2992 break;
2993 case CODEC_TYPE_SUBTITLE:
2994 has_subtitle = 1;
2995 break;
2996 case CODEC_TYPE_DATA:
2997 case CODEC_TYPE_ATTACHMENT:
2998 case CODEC_TYPE_UNKNOWN:
2999 break;
3000 default:
3001 abort();
3002 }
3003 }
3004 }
3005 *has_video_ptr = has_video;
3006 *has_audio_ptr = has_audio;
3007 *has_subtitle_ptr = has_subtitle;
3008 }
3009
3010 static void new_video_stream(AVFormatContext *oc)
3011 {
3012 AVStream *st;
3013 AVCodecContext *video_enc;
3014 int codec_id;
3015
3016 st = av_new_stream(oc, oc->nb_streams);
3017 if (!st) {
3018 fprintf(stderr, "Could not alloc stream\n");
3019 av_exit(1);
3020 }
3021 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3022 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3023 video_bitstream_filters= NULL;
3024
3025 if(thread_count>1)
3026 avcodec_thread_init(st->codec, thread_count);
3027
3028 video_enc = st->codec;
3029
3030 if(video_codec_tag)
3031 video_enc->codec_tag= video_codec_tag;
3032
3033 if( (video_global_header&1)
3034 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3035 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3036 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3037 }
3038 if(video_global_header&2){
3039 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3040 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3041 }
3042
3043 if (video_stream_copy) {
3044 st->stream_copy = 1;
3045 video_enc->codec_type = CODEC_TYPE_VIDEO;
3046 video_enc->sample_aspect_ratio =
3047 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3048 } else {
3049 const char *p;
3050 int i;
3051 AVCodec *codec;
3052 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3053
3054 if (video_codec_name) {
3055 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3056 codec = avcodec_find_encoder_by_name(video_codec_name);
3057 output_codecs[nb_ocodecs] = codec;
3058 } else {
3059 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3060 codec = avcodec_find_encoder(codec_id);
3061 }
3062
3063 video_enc->codec_id = codec_id;
3064
3065 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3066
3067 if (codec && codec->supported_framerates && !force_fps)
3068 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3069 video_enc->time_base.den = fps.num;
3070 video_enc->time_base.num = fps.den;
3071
3072 video_enc->width = frame_width + frame_padright + frame_padleft;
3073 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3074 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3075 video_enc->pix_fmt = frame_pix_fmt;
3076 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3077
3078 if(codec && codec->pix_fmts){
3079 const enum PixelFormat *p= codec->pix_fmts;
3080 for(; *p!=-1; p++){
3081 if(*p == video_enc->pix_fmt)
3082 break;
3083 }
3084 if(*p == -1)
3085 video_enc->pix_fmt = codec->pix_fmts[0];
3086 }
3087
3088 if (intra_only)
3089 video_enc->gop_size = 0;
3090 if (video_qscale || same_quality) {
3091 video_enc->flags |= CODEC_FLAG_QSCALE;
3092 video_enc->global_quality=
3093 st->quality = FF_QP2LAMBDA * video_qscale;
3094 }
3095
3096 if(intra_matrix)
3097 video_enc->intra_matrix = intra_matrix;
3098 if(inter_matrix)
3099 video_enc->inter_matrix = inter_matrix;
3100
3101 video_enc->thread_count = thread_count;
3102 p= video_rc_override_string;
3103 for(i=0; p; i++){
3104 int start, end, q;
3105 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3106 if(e!=3){
3107 fprintf(stderr, "error parsing rc_override\n");
3108 av_exit(1);
3109 }
3110 video_enc->rc_override=
3111 av_realloc(video_enc->rc_override,
3112 sizeof(RcOverride)*(i+1));
3113 video_enc->rc_override[i].start_frame= start;
3114 video_enc->rc_override[i].end_frame = end;
3115 if(q>0){
3116 video_enc->rc_override[i].qscale= q;
3117 video_enc->rc_override[i].quality_factor= 1.0;
3118 }
3119 else{
3120 video_enc->rc_override[i].qscale= 0;
3121 video_enc->rc_override[i].quality_factor= -q/100.0;
3122 }
3123 p= strchr(p, '/');
3124 if(p) p++;
3125 }
3126 video_enc->rc_override_count=i;
3127 if (!video_enc->rc_initial_buffer_occupancy)
3128 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3129 video_enc->me_threshold= me_threshold;
3130 video_enc->intra_dc_precision= intra_dc_precision - 8;
3131
3132 if (do_psnr)
3133 video_enc->flags|= CODEC_FLAG_PSNR;
3134
3135 /* two pass mode */
3136 if (do_pass) {
3137 if (do_pass == 1) {
3138 video_enc->flags |= CODEC_FLAG_PASS1;
3139 } else {
3140 video_enc->flags |= CODEC_FLAG_PASS2;
3141 }
3142 }
3143 }
3144 nb_ocodecs++;
3145
3146 /* reset some key parameters */
3147 video_disable = 0;
3148 av_freep(&video_codec_name);
3149 video_stream_copy = 0;
3150 }
3151
3152 static void new_audio_stream(AVFormatContext *oc)
3153 {
3154 AVStream *st;
3155 AVCodecContext *audio_enc;
3156 int codec_id;
3157
3158 st = av_new_stream(oc, oc->nb_streams);
3159 if (!st) {
3160 fprintf(stderr, "Could not alloc stream\n");
3161 av_exit(1);
3162 }
3163 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3164
3165 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3166 audio_bitstream_filters= NULL;
3167
3168 if(thread_count>1)
3169 avcodec_thread_init(st->codec, thread_count);
3170
3171 audio_enc = st->codec;
3172 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3173
3174 if(audio_codec_tag)
3175 audio_enc->codec_tag= audio_codec_tag;
3176
3177 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3178 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3179 avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3180 }
3181 if (audio_stream_copy) {
3182 st->stream_copy = 1;
3183 audio_enc->channels = audio_channels;
3184 } else {
3185 AVCodec *codec;
3186
3187 set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3188
3189 if (audio_codec_name) {
3190 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3191 codec = avcodec_find_encoder_by_name(audio_codec_name);
3192 output_codecs[nb_ocodecs] = codec;
3193 } else {
3194 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3195 codec = avcodec_find_encoder(codec_id);
3196 }
3197 audio_enc->codec_id = codec_id;
3198
3199 if (audio_qscale > QSCALE_NONE) {
3200 audio_enc->flags |= CODEC_FLAG_QSCALE;
3201 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3202 }
3203 audio_enc->thread_count = thread_count;
3204 audio_enc->channels = audio_channels;
3205 audio_enc->sample_fmt = audio_sample_fmt;