mlpdec: Simplify check for substream_parity_present.
[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 "libavutil/fifo.h"
40 #include "libavutil/avstring.h"
41 #include "libavformat/os_support.h"
42
43 #if HAVE_SYS_RESOURCE_H
44 #include <sys/types.h>
45 #include <sys/resource.h>
46 #elif HAVE_GETPROCESSTIMES
47 #include <windows.h>
48 #endif
49
50 #if HAVE_SYS_SELECT_H
51 #include <sys/select.h>
52 #endif
53
54 #if HAVE_TERMIOS_H
55 #include <fcntl.h>
56 #include <sys/ioctl.h>
57 #include <sys/time.h>
58 #include <termios.h>
59 #elif HAVE_CONIO_H
60 #include <conio.h>
61 #endif
62 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
63 #include <time.h>
64
65 #include "cmdutils.h"
66
67 #undef NDEBUG
68 #include <assert.h>
69
70 #undef exit
71
72 const char program_name[] = "FFmpeg";
73 const int program_birth_year = 2000;
74
75 /* select an input stream for an output stream */
76 typedef struct AVStreamMap {
77 int file_index;
78 int stream_index;
79 int sync_file_index;
80 int sync_stream_index;
81 } AVStreamMap;
82
83 /** select an input file for an output file */
84 typedef struct AVMetaDataMap {
85 int out_file;
86 int in_file;
87 } AVMetaDataMap;
88
89 static const OptionDef options[];
90
91 #define MAX_FILES 20
92
93 static AVFormatContext *input_files[MAX_FILES];
94 static int64_t input_files_ts_offset[MAX_FILES];
95 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
96 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
97 static int nb_input_files = 0;
98 static int nb_icodecs;
99
100 static AVFormatContext *output_files[MAX_FILES];
101 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
102 static int nb_output_files = 0;
103 static int nb_ocodecs;
104
105 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
106 static int nb_stream_maps;
107
108 static AVMetaDataMap meta_data_maps[MAX_FILES];
109 static int nb_meta_data_maps;
110
111 static AVInputFormat *file_iformat;
112 static AVOutputFormat *file_oformat;
113 static int frame_width = 0;
114 static int frame_height = 0;
115 static float frame_aspect_ratio = 0;
116 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
117 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
118 static int frame_padtop = 0;
119 static int frame_padbottom = 0;
120 static int frame_padleft = 0;
121 static int frame_padright = 0;
122 static int padcolor[3] = {16,128,128}; /* default to black */
123 static int frame_topBand = 0;
124 static int frame_bottomBand = 0;
125 static int frame_leftBand = 0;
126 static int frame_rightBand = 0;
127 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
128 static AVRational frame_rate;
129 static float video_qscale = 0;
130 static uint16_t *intra_matrix = NULL;
131 static uint16_t *inter_matrix = NULL;
132 #if 0 //experimental, (can be removed)
133 static float video_rc_qsquish=1.0;
134 static float video_rc_qmod_amp=0;
135 static int video_rc_qmod_freq=0;
136 #endif
137 static const char *video_rc_override_string=NULL;
138 static int video_disable = 0;
139 static int video_discard = 0;
140 static char *video_codec_name = NULL;
141 static int video_codec_tag = 0;
142 static int same_quality = 0;
143 static int do_deinterlace = 0;
144 static int top_field_first = -1;
145 static int me_threshold = 0;
146 static int intra_dc_precision = 8;
147 static int loop_input = 0;
148 static int loop_output = AVFMT_NOOUTPUTLOOP;
149 static int qp_hist = 0;
150
151 static int intra_only = 0;
152 static int audio_sample_rate = 44100;
153 static int64_t channel_layout = 0;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 1;
158 static char *audio_codec_name = NULL;
159 static int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_codec_name = NULL;
164 static char *subtitle_language = NULL;
165 static int subtitle_codec_tag = 0;
166
167 static float mux_preload= 0.5;
168 static float mux_max_delay= 0.7;
169
170 static int64_t recording_time = INT64_MAX;
171 static int64_t start_time = 0;
172 static int64_t rec_timestamp = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static int metadata_count;
176 static AVMetadataTag *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int audio_stream_copy = 0;
184 static int video_stream_copy = 0;
185 static int subtitle_stream_copy = 0;
186 static int video_sync_method= -1;
187 static int audio_sync_method= 0;
188 static float audio_drift_threshold= 0.1;
189 static int copy_ts= 0;
190 static int opt_shortest = 0;
191 static int video_global_header = 0;
192 static char *vstats_filename;
193 static FILE *vstats_file;
194 static int opt_programid = 0;
195 static int copy_initial_nonkeyframes = 0;
196
197 static int rate_emu = 0;
198
199 static int video_channel = 0;
200 static char *video_standard;
201
202 static int audio_volume = 256;
203
204 static int exit_on_error = 0;
205 static int using_stdin = 0;
206 static int verbose = 1;
207 static int thread_count= 1;
208 static int q_pressed = 0;
209 static int64_t video_size = 0;
210 static int64_t audio_size = 0;
211 static int64_t extra_size = 0;
212 static int nb_frames_dup = 0;
213 static int nb_frames_drop = 0;
214 static int input_sync;
215 static uint64_t limit_filesize = 0;
216 static int force_fps = 0;
217
218 static int pgmyuv_compatibility_hack=0;
219 static float dts_delta_threshold = 10;
220
221 static unsigned int sws_flags = SWS_BICUBIC;
222
223 static int64_t timer_start;
224
225 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
226 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
227 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
228 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
229
230 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
231
232 struct AVInputStream;
233
234 typedef struct AVOutputStream {
235 int file_index; /* file index */
236 int index; /* stream index in the output file */
237 int source_index; /* AVInputStream index */
238 AVStream *st; /* stream in the output file */
239 int encoding_needed; /* true if encoding needed for this stream */
240 int frame_number;
241 /* input pts and corresponding output pts
242 for A/V sync */
243 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
244 struct AVInputStream *sync_ist; /* input stream to sync against */
245 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
246 /* video only */
247 int video_resample;
248 AVFrame pict_tmp; /* temporary image for resampling */
249 struct SwsContext *img_resample_ctx; /* for image resampling */
250 int resample_height;
251
252 int video_crop;
253 int topBand; /* cropping area sizes */
254 int leftBand;
255
256 int video_pad;
257 int padtop; /* padding area sizes */
258 int padbottom;
259 int padleft;
260 int padright;
261
262 /* audio only */
263 int audio_resample;
264 ReSampleContext *resample; /* for audio resampling */
265 int reformat_pair;
266 AVAudioConvert *reformat_ctx;
267 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
268 FILE *logfile;
269 } AVOutputStream;
270
271 typedef struct AVInputStream {
272 int file_index;
273 int index;
274 AVStream *st;
275 int discard; /* true if stream data should be discarded */
276 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
277 int64_t sample_index; /* current sample */
278
279 int64_t start; /* time when read started */
280 int64_t next_pts; /* synthetic pts for cases where pkt.pts
281 is not defined */
282 int64_t pts; /* current pts */
283 int is_start; /* is 1 at the start and after a discontinuity */
284 } AVInputStream;
285
286 typedef struct AVInputFile {
287 int eof_reached; /* true if eof reached */
288 int ist_index; /* index of first stream in ist_table */
289 int buffer_size; /* current total buffer size */
290 int nb_streams; /* nb streams we are aware of */
291 } AVInputFile;
292
293 #if HAVE_TERMIOS_H
294
295 /* init terminal so that we can grab keys */
296 static struct termios oldtty;
297 #endif
298
299 static void term_exit(void)
300 {
301 #if HAVE_TERMIOS_H
302 tcsetattr (0, TCSANOW, &oldtty);
303 #endif
304 }
305
306 static volatile sig_atomic_t received_sigterm = 0;
307
308 static void
309 sigterm_handler(int sig)
310 {
311 received_sigterm = sig;
312 term_exit();
313 }
314
315 static void term_init(void)
316 {
317 #if HAVE_TERMIOS_H
318 struct termios tty;
319
320 tcgetattr (0, &tty);
321 oldtty = tty;
322
323 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
324 |INLCR|IGNCR|ICRNL|IXON);
325 tty.c_oflag |= OPOST;
326 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
327 tty.c_cflag &= ~(CSIZE|PARENB);
328 tty.c_cflag |= CS8;
329 tty.c_cc[VMIN] = 1;
330 tty.c_cc[VTIME] = 0;
331
332 tcsetattr (0, TCSANOW, &tty);
333 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
334 #endif
335
336 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
337 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
338 /*
339 register a function to be called at normal program termination
340 */
341 atexit(term_exit);
342 #if CONFIG_BEOS_NETSERVER
343 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
344 #endif
345 }
346
347 /* read a key without blocking */
348 static int read_key(void)
349 {
350 #if HAVE_TERMIOS_H
351 int n = 1;
352 unsigned char ch;
353 #if !CONFIG_BEOS_NETSERVER
354 struct timeval tv;
355 fd_set rfds;
356
357 FD_ZERO(&rfds);
358 FD_SET(0, &rfds);
359 tv.tv_sec = 0;
360 tv.tv_usec = 0;
361 n = select(1, &rfds, NULL, NULL, &tv);
362 #endif
363 if (n > 0) {
364 n = read(0, &ch, 1);
365 if (n == 1)
366 return ch;
367
368 return n;
369 }
370 #elif HAVE_CONIO_H
371 if(kbhit())
372 return(getch());
373 #endif
374 return -1;
375 }
376
377 static int decode_interrupt_cb(void)
378 {
379 return q_pressed || (q_pressed = read_key() == 'q');
380 }
381
382 static int av_exit(int ret)
383 {
384 int i;
385
386 /* close files */
387 for(i=0;i<nb_output_files;i++) {
388 /* maybe av_close_output_file ??? */
389 AVFormatContext *s = output_files[i];
390 int j;
391 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
392 url_fclose(s->pb);
393 for(j=0;j<s->nb_streams;j++) {
394 av_metadata_free(&s->streams[j]->metadata);
395 av_free(s->streams[j]->codec);
396 av_free(s->streams[j]);
397 }
398 for(j=0;j<s->nb_programs;j++) {
399 av_metadata_free(&s->programs[j]->metadata);
400 }
401 for(j=0;j<s->nb_chapters;j++) {
402 av_metadata_free(&s->chapters[j]->metadata);
403 }
404 av_metadata_free(&s->metadata);
405 av_free(s);
406 }
407 for(i=0;i<nb_input_files;i++)
408 av_close_input_file(input_files[i]);
409
410 av_free(intra_matrix);
411 av_free(inter_matrix);
412
413 if (vstats_file)
414 fclose(vstats_file);
415 av_free(vstats_filename);
416
417 av_free(opt_names);
418
419 av_free(video_codec_name);
420 av_free(audio_codec_name);
421 av_free(subtitle_codec_name);
422
423 av_free(video_standard);
424
425 #if CONFIG_POWERPC_PERF
426 void powerpc_display_perf_report(void);
427 powerpc_display_perf_report();
428 #endif /* CONFIG_POWERPC_PERF */
429
430 if (received_sigterm) {
431 fprintf(stderr,
432 "Received signal %d: terminating.\n",
433 (int) received_sigterm);
434 exit (255);
435 }
436
437 exit(ret); /* not all OS-es handle main() return value */
438 return ret;
439 }
440
441 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
442 {
443 int i, err;
444 AVFormatContext *ic;
445 int nopts = 0;
446
447 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
448 if (err < 0)
449 return err;
450 /* copy stream format */
451 s->nb_streams = ic->nb_streams;
452 for(i=0;i<ic->nb_streams;i++) {
453 AVStream *st;
454
455 // FIXME: a more elegant solution is needed
456 st = av_mallocz(sizeof(AVStream));
457 memcpy(st, ic->streams[i], sizeof(AVStream));
458 st->codec = avcodec_alloc_context();
459 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
460 s->streams[i] = st;
461
462 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
463 st->stream_copy = 1;
464 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
465 st->stream_copy = 1;
466
467 if(!st->codec->thread_count)
468 st->codec->thread_count = 1;
469 if(st->codec->thread_count>1)
470 avcodec_thread_init(st->codec, st->codec->thread_count);
471
472 if(st->codec->flags & CODEC_FLAG_BITEXACT)
473 nopts = 1;
474 }
475
476 if (!nopts)
477 s->timestamp = av_gettime();
478
479 av_close_input_file(ic);
480 return 0;
481 }
482
483 static double
484 get_sync_ipts(const AVOutputStream *ost)
485 {
486 const AVInputStream *ist = ost->sync_ist;
487 return (double)(ist->pts - start_time)/AV_TIME_BASE;
488 }
489
490 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
491 int ret;
492
493 while(bsfc){
494 AVPacket new_pkt= *pkt;
495 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
496 &new_pkt.data, &new_pkt.size,
497 pkt->data, pkt->size,
498 pkt->flags & PKT_FLAG_KEY);
499 if(a>0){
500 av_free_packet(pkt);
501 new_pkt.destruct= av_destruct_packet;
502 } else if(a<0){
503 fprintf(stderr, "%s failed for stream %d, codec %s",
504 bsfc->filter->name, pkt->stream_index,
505 avctx->codec ? avctx->codec->name : "copy");
506 print_error("", a);
507 if (exit_on_error)
508 av_exit(1);
509 }
510 *pkt= new_pkt;
511
512 bsfc= bsfc->next;
513 }
514
515 ret= av_interleaved_write_frame(s, pkt);
516 if(ret < 0){
517 print_error("av_interleaved_write_frame()", ret);
518 av_exit(1);
519 }
520 }
521
522 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
523
524 static void do_audio_out(AVFormatContext *s,
525 AVOutputStream *ost,
526 AVInputStream *ist,
527 unsigned char *buf, int size)
528 {
529 uint8_t *buftmp;
530 static uint8_t *audio_buf = NULL;
531 static uint8_t *audio_out = NULL;
532 static uint8_t *audio_out2 = NULL;
533 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
534
535 int size_out, frame_bytes, ret;
536 AVCodecContext *enc= ost->st->codec;
537 AVCodecContext *dec= ist->st->codec;
538 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
539 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
540
541 /* SC: dynamic allocation of buffers */
542 if (!audio_buf)
543 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
544 if (!audio_out)
545 audio_out = av_malloc(audio_out_size);
546 if (!audio_buf || !audio_out)
547 return; /* Should signal an error ! */
548
549 if (enc->channels != dec->channels)
550 ost->audio_resample = 1;
551
552 if (ost->audio_resample && !ost->resample) {
553 if (dec->sample_fmt != SAMPLE_FMT_S16)
554 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
555 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
556 enc->sample_rate, dec->sample_rate,
557 enc->sample_fmt, dec->sample_fmt,
558 16, 10, 0, 0.8);
559 if (!ost->resample) {
560 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
561 dec->channels, dec->sample_rate,
562 enc->channels, enc->sample_rate);
563 av_exit(1);
564 }
565 }
566
567 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
568 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
569 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
570 if (!audio_out2)
571 audio_out2 = av_malloc(audio_out_size);
572 if (!audio_out2)
573 av_exit(1);
574 if (ost->reformat_ctx)
575 av_audio_convert_free(ost->reformat_ctx);
576 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
577 dec->sample_fmt, 1, NULL, 0);
578 if (!ost->reformat_ctx) {
579 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
580 avcodec_get_sample_fmt_name(dec->sample_fmt),
581 avcodec_get_sample_fmt_name(enc->sample_fmt));
582 av_exit(1);
583 }
584 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
585 }
586
587 if(audio_sync_method){
588 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
589 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
590 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
591 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
592
593 //FIXME resample delay
594 if(fabs(delta) > 50){
595 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
596 if(byte_delta < 0){
597 byte_delta= FFMAX(byte_delta, -size);
598 size += byte_delta;
599 buf -= byte_delta;
600 if(verbose > 2)
601 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
602 if(!size)
603 return;
604 ist->is_start=0;
605 }else{
606 static uint8_t *input_tmp= NULL;
607 input_tmp= av_realloc(input_tmp, byte_delta + size);
608
609 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
610 ist->is_start=0;
611 else
612 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
613
614 memset(input_tmp, 0, byte_delta);
615 memcpy(input_tmp + byte_delta, buf, size);
616 buf= input_tmp;
617 size += byte_delta;
618 if(verbose > 2)
619 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
620 }
621 }else if(audio_sync_method>1){
622 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
623 assert(ost->audio_resample);
624 if(verbose > 2)
625 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
626 // 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));
627 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
628 }
629 }
630 }else
631 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
632 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
633
634 if (ost->audio_resample) {
635 buftmp = audio_buf;
636 size_out = audio_resample(ost->resample,
637 (short *)buftmp, (short *)buf,
638 size / (ist->st->codec->channels * isize));
639 size_out = size_out * enc->channels * osize;
640 } else {
641 buftmp = buf;
642 size_out = size;
643 }
644
645 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
646 const void *ibuf[6]= {buftmp};
647 void *obuf[6]= {audio_out2};
648 int istride[6]= {isize};
649 int ostride[6]= {osize};
650 int len= size_out/istride[0];
651 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
652 printf("av_audio_convert() failed\n");
653 if (exit_on_error)
654 av_exit(1);
655 return;
656 }
657 buftmp = audio_out2;
658 size_out = len*osize;
659 }
660
661 /* now encode as many frames as possible */
662 if (enc->frame_size > 1) {
663 /* output resampled raw samples */
664 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
665 fprintf(stderr, "av_fifo_realloc2() failed\n");
666 av_exit(1);
667 }
668 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
669
670 frame_bytes = enc->frame_size * osize * enc->channels;
671
672 while (av_fifo_size(ost->fifo) >= frame_bytes) {
673 AVPacket pkt;
674 av_init_packet(&pkt);
675
676 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
677
678 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
679
680 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
681 (short *)audio_buf);
682 if (ret < 0) {
683 fprintf(stderr, "Audio encoding failed\n");
684 av_exit(1);
685 }
686 audio_size += ret;
687 pkt.stream_index= ost->index;
688 pkt.data= audio_out;
689 pkt.size= ret;
690 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
691 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
692 pkt.flags |= PKT_FLAG_KEY;
693 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
694
695 ost->sync_opts += enc->frame_size;
696 }
697 } else {
698 AVPacket pkt;
699 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
700 av_init_packet(&pkt);
701
702 ost->sync_opts += size_out / (osize * enc->channels);
703
704 /* output a pcm frame */
705 /* determine the size of the coded buffer */
706 size_out /= osize;
707 if (coded_bps)
708 size_out *= coded_bps;
709
710 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
711 ret = avcodec_encode_audio(enc, audio_out, size_out,
712 (short *)buftmp);
713 if (ret < 0) {
714 fprintf(stderr, "Audio encoding failed\n");
715 av_exit(1);
716 }
717 audio_size += ret;
718 pkt.stream_index= ost->index;
719 pkt.data= audio_out;
720 pkt.size= ret;
721 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
722 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
723 pkt.flags |= PKT_FLAG_KEY;
724 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
725 }
726 }
727
728 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
729 {
730 AVCodecContext *dec;
731 AVPicture *picture2;
732 AVPicture picture_tmp;
733 uint8_t *buf = 0;
734
735 dec = ist->st->codec;
736
737 /* deinterlace : must be done before any resize */
738 if (do_deinterlace) {
739 int size;
740
741 /* create temporary picture */
742 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
743 buf = av_malloc(size);
744 if (!buf)
745 return;
746
747 picture2 = &picture_tmp;
748 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
749
750 if (do_deinterlace){
751 if(avpicture_deinterlace(picture2, picture,
752 dec->pix_fmt, dec->width, dec->height) < 0) {
753 /* if error, do not deinterlace */
754 fprintf(stderr, "Deinterlacing failed\n");
755 av_free(buf);
756 buf = NULL;
757 picture2 = picture;
758 }
759 } else {
760 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
761 }
762 } else {
763 picture2 = picture;
764 }
765
766 if (picture != picture2)
767 *picture = *picture2;
768 *bufp = buf;
769 }
770
771 /* we begin to correct av delay at this threshold */
772 #define AV_DELAY_MAX 0.100
773
774 static void do_subtitle_out(AVFormatContext *s,
775 AVOutputStream *ost,
776 AVInputStream *ist,
777 AVSubtitle *sub,
778 int64_t pts)
779 {
780 static uint8_t *subtitle_out = NULL;
781 int subtitle_out_max_size = 65536;
782 int subtitle_out_size, nb, i;
783 AVCodecContext *enc;
784 AVPacket pkt;
785
786 if (pts == AV_NOPTS_VALUE) {
787 fprintf(stderr, "Subtitle packets must have a pts\n");
788 if (exit_on_error)
789 av_exit(1);
790 return;
791 }
792
793 enc = ost->st->codec;
794
795 if (!subtitle_out) {
796 subtitle_out = av_malloc(subtitle_out_max_size);
797 }
798
799 /* Note: DVB subtitle need one packet to draw them and one other
800 packet to clear them */
801 /* XXX: signal it in the codec context ? */
802 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
803 nb = 2;
804 else
805 nb = 1;
806
807 for(i = 0; i < nb; i++) {
808 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
809 subtitle_out_max_size, sub);
810
811 av_init_packet(&pkt);
812 pkt.stream_index = ost->index;
813 pkt.data = subtitle_out;
814 pkt.size = subtitle_out_size;
815 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
816 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
817 /* XXX: the pts correction is handled here. Maybe handling
818 it in the codec would be better */
819 if (i == 0)
820 pkt.pts += 90 * sub->start_display_time;
821 else
822 pkt.pts += 90 * sub->end_display_time;
823 }
824 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
825 }
826 }
827
828 static int bit_buffer_size= 1024*256;
829 static uint8_t *bit_buffer= NULL;
830
831 static void do_video_out(AVFormatContext *s,
832 AVOutputStream *ost,
833 AVInputStream *ist,
834 AVFrame *in_picture,
835 int *frame_size)
836 {
837 int nb_frames, i, ret;
838 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
839 AVFrame picture_crop_temp, picture_pad_temp;
840 AVCodecContext *enc, *dec;
841
842 avcodec_get_frame_defaults(&picture_crop_temp);
843 avcodec_get_frame_defaults(&picture_pad_temp);
844
845 enc = ost->st->codec;
846 dec = ist->st->codec;
847
848 /* by default, we output a single frame */
849 nb_frames = 1;
850
851 *frame_size = 0;
852
853 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
854 double vdelta;
855 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
856 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
857 if (vdelta < -1.1)
858 nb_frames = 0;
859 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
860 if(vdelta<=-0.6){
861 nb_frames=0;
862 }else if(vdelta>0.6)
863 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
864 }else if (vdelta > 1.1)
865 nb_frames = lrintf(vdelta);
866 //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);
867 if (nb_frames == 0){
868 ++nb_frames_drop;
869 if (verbose>2)
870 fprintf(stderr, "*** drop!\n");
871 }else if (nb_frames > 1) {
872 nb_frames_dup += nb_frames;
873 if (verbose>2)
874 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
875 }
876 }else
877 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
878
879 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
880 if (nb_frames <= 0)
881 return;
882
883 if (ost->video_crop) {
884 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
885 fprintf(stderr, "error cropping picture\n");
886 if (exit_on_error)
887 av_exit(1);
888 return;
889 }
890 formatted_picture = &picture_crop_temp;
891 } else {
892 formatted_picture = in_picture;
893 }
894
895 final_picture = formatted_picture;
896 padding_src = formatted_picture;
897 resampling_dst = &ost->pict_tmp;
898 if (ost->video_pad) {
899 final_picture = &ost->pict_tmp;
900 if (ost->video_resample) {
901 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
902 fprintf(stderr, "error padding picture\n");
903 if (exit_on_error)
904 av_exit(1);
905 return;
906 }
907 resampling_dst = &picture_pad_temp;
908 }
909 }
910
911 if (ost->video_resample) {
912 padding_src = NULL;
913 final_picture = &ost->pict_tmp;
914 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
915 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
916 }
917
918 if (ost->video_pad) {
919 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
920 enc->height, enc->width, enc->pix_fmt,
921 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
922 }
923
924 /* duplicates frame if needed */
925 for(i=0;i<nb_frames;i++) {
926 AVPacket pkt;
927 av_init_packet(&pkt);
928 pkt.stream_index= ost->index;
929
930 if (s->oformat->flags & AVFMT_RAWPICTURE) {
931 /* raw pictures are written as AVPicture structure to
932 avoid any copies. We support temorarily the older
933 method. */
934 AVFrame* old_frame = enc->coded_frame;
935 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
936 pkt.data= (uint8_t *)final_picture;
937 pkt.size= sizeof(AVPicture);
938 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
939 pkt.flags |= PKT_FLAG_KEY;
940
941 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
942 enc->coded_frame = old_frame;
943 } else {
944 AVFrame big_picture;
945
946 big_picture= *final_picture;
947 /* better than nothing: use input picture interlaced
948 settings */
949 big_picture.interlaced_frame = in_picture->interlaced_frame;
950 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
951 if(top_field_first == -1)
952 big_picture.top_field_first = in_picture->top_field_first;
953 else
954 big_picture.top_field_first = top_field_first;
955 }
956
957 /* handles sameq here. This is not correct because it may
958 not be a global option */
959 if (same_quality) {
960 big_picture.quality = ist->st->quality;
961 }else
962 big_picture.quality = ost->st->quality;
963 if(!me_threshold)
964 big_picture.pict_type = 0;
965 // big_picture.pts = AV_NOPTS_VALUE;
966 big_picture.pts= ost->sync_opts;
967 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
968 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
969 ret = avcodec_encode_video(enc,
970 bit_buffer, bit_buffer_size,
971 &big_picture);
972 if (ret < 0) {
973 fprintf(stderr, "Video encoding failed\n");
974 av_exit(1);
975 }
976 //enc->frame_number = enc->real_pict_num;
977 if(ret>0){
978 pkt.data= bit_buffer;
979 pkt.size= ret;
980 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
981 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
982 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
983 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
984 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
985
986 if(enc->coded_frame->key_frame)
987 pkt.flags |= PKT_FLAG_KEY;
988 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
989 *frame_size = ret;
990 video_size += ret;
991 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
992 // enc->frame_number-1, enc->real_pict_num, ret,
993 // enc->pict_type);
994 /* if two pass, output log */
995 if (ost->logfile && enc->stats_out) {
996 fprintf(ost->logfile, "%s", enc->stats_out);
997 }
998 }
999 }
1000 ost->sync_opts++;
1001 ost->frame_number++;
1002 }
1003 }
1004
1005 static double psnr(double d){
1006 return -10.0*log(d)/log(10.0);
1007 }
1008
1009 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1010 int frame_size)
1011 {
1012 AVCodecContext *enc;
1013 int frame_number;
1014 double ti1, bitrate, avg_bitrate;
1015
1016 /* this is executed just the first time do_video_stats is called */
1017 if (!vstats_file) {
1018 vstats_file = fopen(vstats_filename, "w");
1019 if (!vstats_file) {
1020 perror("fopen");
1021 av_exit(1);
1022 }
1023 }
1024
1025 enc = ost->st->codec;
1026 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1027 frame_number = ost->frame_number;
1028 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1029 if (enc->flags&CODEC_FLAG_PSNR)
1030 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1031
1032 fprintf(vstats_file,"f_size= %6d ", frame_size);
1033 /* compute pts value */
1034 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1035 if (ti1 < 0.01)
1036 ti1 = 0.01;
1037
1038 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1039 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1040 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1041 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1042 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1043 }
1044 }
1045
1046 static void print_report(AVFormatContext **output_files,
1047 AVOutputStream **ost_table, int nb_ostreams,
1048 int is_last_report)
1049 {
1050 char buf[1024];
1051 AVOutputStream *ost;
1052 AVFormatContext *oc, *os;
1053 int64_t total_size;
1054 AVCodecContext *enc;
1055 int frame_number, vid, i;
1056 double bitrate, ti1, pts;
1057 static int64_t last_time = -1;
1058 static int qp_histogram[52];
1059
1060 if (!is_last_report) {
1061 int64_t cur_time;
1062 /* display the report every 0.5 seconds */
1063 cur_time = av_gettime();
1064 if (last_time == -1) {
1065 last_time = cur_time;
1066 return;
1067 }
1068 if ((cur_time - last_time) < 500000)
1069 return;
1070 last_time = cur_time;
1071 }
1072
1073
1074 oc = output_files[0];
1075
1076 total_size = url_fsize(oc->pb);
1077 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1078 total_size= url_ftell(oc->pb);
1079
1080 buf[0] = '\0';
1081 ti1 = 1e10;
1082 vid = 0;
1083 for(i=0;i<nb_ostreams;i++) {
1084 ost = ost_table[i];
1085 os = output_files[ost->file_index];
1086 enc = ost->st->codec;
1087 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1088 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1089 !ost->st->stream_copy ?
1090 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1091 }
1092 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1093 float t = (av_gettime()-timer_start) / 1000000.0;
1094
1095 frame_number = ost->frame_number;
1096 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1097 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1098 !ost->st->stream_copy ?
1099 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1100 if(is_last_report)
1101 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1102 if(qp_hist){
1103 int j;
1104 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1105 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1106 qp_histogram[qp]++;
1107 for(j=0; j<32; j++)
1108 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1109 }
1110 if (enc->flags&CODEC_FLAG_PSNR){
1111 int j;
1112 double error, error_sum=0;
1113 double scale, scale_sum=0;
1114 char type[3]= {'Y','U','V'};
1115 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1116 for(j=0; j<3; j++){
1117 if(is_last_report){
1118 error= enc->error[j];
1119 scale= enc->width*enc->height*255.0*255.0*frame_number;
1120 }else{
1121 error= enc->coded_frame->error[j];
1122 scale= enc->width*enc->height*255.0*255.0;
1123 }
1124 if(j) scale/=4;
1125 error_sum += error;
1126 scale_sum += scale;
1127 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1128 }
1129 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1130 }
1131 vid = 1;
1132 }
1133 /* compute min output value */
1134 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1135 if ((pts < ti1) && (pts > 0))
1136 ti1 = pts;
1137 }
1138 if (ti1 < 0.01)
1139 ti1 = 0.01;
1140
1141 if (verbose || is_last_report) {
1142 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1143
1144 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1145 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1146 (double)total_size / 1024, ti1, bitrate);
1147
1148 if (verbose > 1)
1149 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1150 nb_frames_dup, nb_frames_drop);
1151
1152 if (verbose >= 0)
1153 fprintf(stderr, "%s \r", buf);
1154
1155 fflush(stderr);
1156 }
1157
1158 if (is_last_report && verbose >= 0){
1159 int64_t raw= audio_size + video_size + extra_size;
1160 fprintf(stderr, "\n");
1161 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1162 video_size/1024.0,
1163 audio_size/1024.0,
1164 extra_size/1024.0,
1165 100.0*(total_size - raw)/raw
1166 );
1167 }
1168 }
1169
1170 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1171 static int output_packet(AVInputStream *ist, int ist_index,
1172 AVOutputStream **ost_table, int nb_ostreams,
1173 const AVPacket *pkt)
1174 {
1175 AVFormatContext *os;
1176 AVOutputStream *ost;
1177 uint8_t *ptr;
1178 int len, ret, i;
1179 uint8_t *data_buf;
1180 int data_size, got_picture;
1181 AVFrame picture;
1182 void *buffer_to_free;
1183 static unsigned int samples_size= 0;
1184 static short *samples= NULL;
1185 AVSubtitle subtitle, *subtitle_to_free;
1186 int got_subtitle;
1187
1188 if(ist->next_pts == AV_NOPTS_VALUE)
1189 ist->next_pts= ist->pts;
1190
1191 if (pkt == NULL) {
1192 /* EOF handling */
1193 ptr = NULL;
1194 len = 0;
1195 goto handle_eof;
1196 }
1197
1198 if(pkt->dts != AV_NOPTS_VALUE)
1199 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1200
1201 len = pkt->size;
1202 ptr = pkt->data;
1203
1204 //while we have more to decode or while the decoder did output something on EOF
1205 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1206 handle_eof:
1207 ist->pts= ist->next_pts;
1208
1209 if(len && len != pkt->size && verbose>0)
1210 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1211
1212 /* decode the packet if needed */
1213 data_buf = NULL; /* fail safe */
1214 data_size = 0;
1215 subtitle_to_free = NULL;
1216 if (ist->decoding_needed) {
1217 switch(ist->st->codec->codec_type) {
1218 case CODEC_TYPE_AUDIO:{
1219 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1220 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1221 av_free(samples);
1222 samples= av_malloc(samples_size);
1223 }
1224 data_size= samples_size;
1225 /* XXX: could avoid copy if PCM 16 bits with same
1226 endianness as CPU */
1227 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1228 ptr, len);
1229 if (ret < 0)
1230 goto fail_decode;
1231 ptr += ret;
1232 len -= ret;
1233 /* Some bug in mpeg audio decoder gives */
1234 /* data_size < 0, it seems they are overflows */
1235 if (data_size <= 0) {
1236 /* no audio frame */
1237 continue;
1238 }
1239 data_buf = (uint8_t *)samples;
1240 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1241 (ist->st->codec->sample_rate * ist->st->codec->channels);
1242 break;}
1243 case CODEC_TYPE_VIDEO:
1244 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1245 /* XXX: allocate picture correctly */
1246 avcodec_get_frame_defaults(&picture);
1247
1248 ret = avcodec_decode_video(ist->st->codec,
1249 &picture, &got_picture, ptr, len);
1250 ist->st->quality= picture.quality;
1251 if (ret < 0)
1252 goto fail_decode;
1253 if (!got_picture) {
1254 /* no picture yet */
1255 goto discard_packet;
1256 }
1257 if (ist->st->codec->time_base.num != 0) {
1258 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1259 ist->next_pts += ((int64_t)AV_TIME_BASE *
1260 ist->st->codec->time_base.num * ticks) /
1261 ist->st->codec->time_base.den;
1262 }
1263 len = 0;
1264 break;
1265 case CODEC_TYPE_SUBTITLE:
1266 ret = avcodec_decode_subtitle(ist->st->codec,
1267 &subtitle, &got_subtitle, ptr, len);
1268 if (ret < 0)
1269 goto fail_decode;
1270 if (!got_subtitle) {
1271 goto discard_packet;
1272 }
1273 subtitle_to_free = &subtitle;
1274 len = 0;
1275 break;
1276 default:
1277 goto fail_decode;
1278 }
1279 } else {
1280 switch(ist->st->codec->codec_type) {
1281 case CODEC_TYPE_AUDIO:
1282 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1283 ist->st->codec->sample_rate;
1284 break;
1285 case CODEC_TYPE_VIDEO:
1286 if (ist->st->codec->time_base.num != 0) {
1287 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1288 ist->next_pts += ((int64_t)AV_TIME_BASE *
1289 ist->st->codec->time_base.num * ticks) /
1290 ist->st->codec->time_base.den;
1291 }
1292 break;
1293 }
1294 data_buf = ptr;
1295 data_size = len;
1296 ret = len;
1297 len = 0;
1298 }
1299
1300 buffer_to_free = NULL;
1301 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1302 pre_process_video_frame(ist, (AVPicture *)&picture,
1303 &buffer_to_free);
1304 }
1305
1306 // preprocess audio (volume)
1307 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1308 if (audio_volume != 256) {
1309 short *volp;
1310 volp = samples;
1311 for(i=0;i<(data_size / sizeof(short));i++) {
1312 int v = ((*volp) * audio_volume + 128) >> 8;
1313 if (v < -32768) v = -32768;
1314 if (v > 32767) v = 32767;
1315 *volp++ = v;
1316 }
1317 }
1318 }
1319
1320 /* frame rate emulation */
1321 if (rate_emu) {
1322 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1323 int64_t now = av_gettime() - ist->start;
1324 if (pts > now)
1325 usleep(pts - now);
1326 }
1327
1328 /* if output time reached then transcode raw format,
1329 encode packets and output them */
1330 if (start_time == 0 || ist->pts >= start_time)
1331 for(i=0;i<nb_ostreams;i++) {
1332 int frame_size;
1333
1334 ost = ost_table[i];
1335 if (ost->source_index == ist_index) {
1336 os = output_files[ost->file_index];
1337
1338 #if 0
1339 printf("%d: got pts=%0.3f %0.3f\n", i,
1340 (double)pkt->pts / AV_TIME_BASE,
1341 ((double)ist->pts / AV_TIME_BASE) -
1342 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1343 #endif
1344 /* set the input output pts pairs */
1345 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1346
1347 if (ost->encoding_needed) {
1348 switch(ost->st->codec->codec_type) {
1349 case CODEC_TYPE_AUDIO:
1350 do_audio_out(os, ost, ist, data_buf, data_size);
1351 break;
1352 case CODEC_TYPE_VIDEO:
1353 do_video_out(os, ost, ist, &picture, &frame_size);
1354 if (vstats_filename && frame_size)
1355 do_video_stats(os, ost, frame_size);
1356 break;
1357 case CODEC_TYPE_SUBTITLE:
1358 do_subtitle_out(os, ost, ist, &subtitle,
1359 pkt->pts);
1360 break;
1361 default:
1362 abort();
1363 }
1364 } else {
1365 AVFrame avframe; //FIXME/XXX remove this
1366 AVPacket opkt;
1367 av_init_packet(&opkt);
1368
1369 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1370 continue;
1371
1372 /* no reencoding needed : output the packet directly */
1373 /* force the input stream PTS */
1374
1375 avcodec_get_frame_defaults(&avframe);
1376 ost->st->codec->coded_frame= &avframe;
1377 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1378
1379 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1380 audio_size += data_size;
1381 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1382 video_size += data_size;
1383 ost->sync_opts++;
1384 }
1385
1386 opkt.stream_index= ost->index;
1387 if(pkt->pts != AV_NOPTS_VALUE)
1388 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1389 else
1390 opkt.pts= AV_NOPTS_VALUE;
1391
1392 if (pkt->dts == AV_NOPTS_VALUE)
1393 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1394 else
1395 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1396
1397 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1398 opkt.flags= pkt->flags;
1399
1400 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1401 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1402 opkt.destruct= av_destruct_packet;
1403
1404 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1405 ost->st->codec->frame_number++;
1406 ost->frame_number++;
1407 av_free_packet(&opkt);
1408 }
1409 }
1410 }
1411 av_free(buffer_to_free);
1412 /* XXX: allocate the subtitles in the codec ? */
1413 if (subtitle_to_free) {
1414 if (subtitle_to_free->rects != NULL) {
1415 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1416 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1417 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1418 av_freep(&subtitle_to_free->rects[i]);
1419 }
1420 av_freep(&subtitle_to_free->rects);
1421 }
1422 subtitle_to_free->num_rects = 0;
1423 subtitle_to_free = NULL;
1424 }
1425 }
1426 discard_packet:
1427 if (pkt == NULL) {
1428 /* EOF handling */
1429
1430 for(i=0;i<nb_ostreams;i++) {
1431 ost = ost_table[i];
1432 if (ost->source_index == ist_index) {
1433 AVCodecContext *enc= ost->st->codec;
1434 os = output_files[ost->file_index];
1435
1436 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1437 continue;
1438 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1439 continue;
1440
1441 if (ost->encoding_needed) {
1442 for(;;) {
1443 AVPacket pkt;
1444 int fifo_bytes;
1445 av_init_packet(&pkt);
1446 pkt.stream_index= ost->index;
1447
1448 switch(ost->st->codec->codec_type) {
1449 case CODEC_TYPE_AUDIO:
1450 fifo_bytes = av_fifo_size(ost->fifo);
1451 ret = 0;
1452 /* encode any samples remaining in fifo */
1453 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1454 int fs_tmp = enc->frame_size;
1455 enc->frame_size = fifo_bytes / (2 * enc->channels);
1456 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1457 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1458 enc->frame_size = fs_tmp;
1459 }
1460 if(ret <= 0) {
1461 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1462 }
1463 if (ret < 0) {
1464 fprintf(stderr, "Audio encoding failed\n");
1465 av_exit(1);
1466 }
1467 audio_size += ret;
1468 pkt.flags |= PKT_FLAG_KEY;
1469 break;
1470 case CODEC_TYPE_VIDEO:
1471 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1472 if (ret < 0) {
1473 fprintf(stderr, "Video encoding failed\n");
1474 av_exit(1);
1475 }
1476 video_size += ret;
1477 if(enc->coded_frame && enc->coded_frame->key_frame)
1478 pkt.flags |= PKT_FLAG_KEY;
1479 if (ost->logfile && enc->stats_out) {
1480 fprintf(ost->logfile, "%s", enc->stats_out);
1481 }
1482 break;
1483 default:
1484 ret=-1;
1485 }
1486
1487 if(ret<=0)
1488 break;
1489 pkt.data= bit_buffer;
1490 pkt.size= ret;
1491 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1492 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1493 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1494 }
1495 }
1496 }
1497 }
1498 }
1499
1500 return 0;
1501 fail_decode:
1502 return -1;
1503 }
1504
1505 static void print_sdp(AVFormatContext **avc, int n)
1506 {
1507 char sdp[2048];
1508
1509 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1510 printf("SDP:\n%s\n", sdp);
1511 fflush(stdout);
1512 }
1513
1514 static int stream_index_from_inputs(AVFormatContext **input_files,
1515 int nb_input_files,
1516 AVInputFile *file_table,
1517 AVInputStream **ist_table,
1518 enum CodecType type,
1519 int programid)
1520 {
1521 int p, q, z;
1522 for(z=0; z<nb_input_files; z++) {
1523 AVFormatContext *ic = input_files[z];
1524 for(p=0; p<ic->nb_programs; p++) {
1525 AVProgram *program = ic->programs[p];
1526 if(program->id != programid)
1527 continue;
1528 for(q=0; q<program->nb_stream_indexes; q++) {
1529 int sidx = program->stream_index[q];
1530 int ris = file_table[z].ist_index + sidx;
1531 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1532 return ris;
1533 }
1534 }
1535 }
1536
1537 return -1;
1538 }
1539
1540 /*
1541 * The following code is the main loop of the file converter
1542 */
1543 static int av_encode(AVFormatContext **output_files,
1544 int nb_output_files,
1545 AVFormatContext **input_files,
1546 int nb_input_files,
1547 AVStreamMap *stream_maps, int nb_stream_maps)
1548 {
1549 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1550 AVFormatContext *is, *os;
1551 AVCodecContext *codec, *icodec;
1552 AVOutputStream *ost, **ost_table = NULL;
1553 AVInputStream *ist, **ist_table = NULL;
1554 AVInputFile *file_table;
1555 char error[1024];
1556 int key;
1557 int want_sdp = 1;
1558 uint8_t no_packet[MAX_FILES]={0};
1559 int no_packet_count=0;
1560
1561 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1562 if (!file_table)
1563 goto fail;
1564
1565 /* input stream init */
1566 j = 0;
1567 for(i=0;i<nb_input_files;i++) {
1568 is = input_files[i];
1569 file_table[i].ist_index = j;
1570 file_table[i].nb_streams = is->nb_streams;
1571 j += is->nb_streams;
1572 }
1573 nb_istreams = j;
1574
1575 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1576 if (!ist_table)
1577 goto fail;
1578
1579 for(i=0;i<nb_istreams;i++) {
1580 ist = av_mallocz(sizeof(AVInputStream));
1581 if (!ist)
1582 goto fail;
1583 ist_table[i] = ist;
1584 }
1585 j = 0;
1586 for(i=0;i<nb_input_files;i++) {
1587 is = input_files[i];
1588 for(k=0;k<is->nb_streams;k++) {
1589 ist = ist_table[j++];
1590 ist->st = is->streams[k];
1591 ist->file_index = i;
1592 ist->index = k;
1593 ist->discard = 1; /* the stream is discarded by default
1594 (changed later) */
1595
1596 if (rate_emu) {
1597 ist->start = av_gettime();
1598 }
1599 }
1600 }
1601
1602 /* output stream init */
1603 nb_ostreams = 0;
1604 for(i=0;i<nb_output_files;i++) {
1605 os = output_files[i];
1606 if (!os->nb_streams) {
1607 dump_format(output_files[i], i, output_files[i]->filename, 1);
1608 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1609 av_exit(1);
1610 }
1611 nb_ostreams += os->nb_streams;
1612 }
1613 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1614 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1615 av_exit(1);
1616 }
1617
1618 /* Sanity check the mapping args -- do the input files & streams exist? */
1619 for(i=0;i<nb_stream_maps;i++) {
1620 int fi = stream_maps[i].file_index;
1621 int si = stream_maps[i].stream_index;
1622
1623 if (fi < 0 || fi > nb_input_files - 1 ||
1624 si < 0 || si > file_table[fi].nb_streams - 1) {
1625 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1626 av_exit(1);
1627 }
1628 fi = stream_maps[i].sync_file_index;
1629 si = stream_maps[i].sync_stream_index;
1630 if (fi < 0 || fi > nb_input_files - 1 ||
1631 si < 0 || si > file_table[fi].nb_streams - 1) {
1632 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1633 av_exit(1);
1634 }
1635 }
1636
1637 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1638 if (!ost_table)
1639 goto fail;
1640 for(i=0;i<nb_ostreams;i++) {
1641 ost = av_mallocz(sizeof(AVOutputStream));
1642 if (!ost)
1643 goto fail;
1644 ost_table[i] = ost;
1645 }
1646
1647 n = 0;
1648 for(k=0;k<nb_output_files;k++) {
1649 os = output_files[k];
1650 for(i=0;i<os->nb_streams;i++,n++) {
1651 int found;
1652 ost = ost_table[n];
1653 ost->file_index = k;
1654 ost->index = i;
1655 ost->st = os->streams[i];
1656 if (nb_stream_maps > 0) {
1657 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1658 stream_maps[n].stream_index;
1659
1660 /* Sanity check that the stream types match */
1661 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1662 int i= ost->file_index;
1663 dump_format(output_files[i], i, output_files[i]->filename, 1);
1664 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1665 stream_maps[n].file_index, stream_maps[n].stream_index,
1666 ost->file_index, ost->index);
1667 av_exit(1);
1668 }
1669
1670 } else {
1671 if(opt_programid) {
1672 found = 0;
1673 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1674 if(j != -1) {
1675 ost->source_index = j;
1676 found = 1;
1677 }
1678 } else {
1679 /* get corresponding input stream index : we select the first one with the right type */
1680 found = 0;
1681 for(j=0;j<nb_istreams;j++) {
1682 ist = ist_table[j];
1683 if (ist->discard &&
1684 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1685 ost->source_index = j;
1686 found = 1;
1687 break;
1688 }
1689 }
1690 }
1691
1692 if (!found) {
1693 if(! opt_programid) {
1694 /* try again and reuse existing stream */
1695 for(j=0;j<nb_istreams;j++) {
1696 ist = ist_table[j];
1697 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1698 ost->source_index = j;
1699 found = 1;
1700 }
1701 }
1702 }
1703 if (!found) {
1704 int i= ost->file_index;
1705 dump_format(output_files[i], i, output_files[i]->filename, 1);
1706 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1707 ost->file_index, ost->index);
1708 av_exit(1);
1709 }
1710 }
1711 }
1712 ist = ist_table[ost->source_index];
1713 ist->discard = 0;
1714 ost->sync_ist = (nb_stream_maps > 0) ?
1715 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1716 stream_maps[n].sync_stream_index] : ist;
1717 }
1718 }
1719
1720 /* for each output stream, we compute the right encoding parameters */
1721 for(i=0;i<nb_ostreams;i++) {
1722 AVMetadataTag *lang;
1723 ost = ost_table[i];
1724 os = output_files[ost->file_index];
1725 ist = ist_table[ost->source_index];
1726
1727 codec = ost->st->codec;
1728 icodec = ist->st->codec;
1729
1730 if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
1731 && !av_metadata_get(ost->st->metadata, "language", NULL, 0))
1732 av_metadata_set(&ost->st->metadata, "language", lang->value);
1733
1734 ost->st->disposition = ist->st->disposition;
1735
1736 if (ost->st->stream_copy) {
1737 /* if stream_copy is selected, no need to decode or encode */
1738 codec->codec_id = icodec->codec_id;
1739 codec->codec_type = icodec->codec_type;
1740
1741 if(!codec->codec_tag){
1742 if( !os->oformat->codec_tag
1743 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1744 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1745 codec->codec_tag = icodec->codec_tag;
1746 }
1747
1748 codec->bit_rate = icodec->bit_rate;
1749 codec->extradata= icodec->extradata;
1750 codec->extradata_size= icodec->extradata_size;
1751 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
1752 codec->time_base = icodec->time_base;
1753 codec->time_base.num *= icodec->ticks_per_frame;
1754 }else
1755 codec->time_base = ist->st->time_base;
1756 switch(codec->codec_type) {
1757 case CODEC_TYPE_AUDIO:
1758 if(audio_volume != 256) {
1759 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1760 av_exit(1);
1761 }
1762 codec->channel_layout = icodec->channel_layout;
1763 codec->sample_rate = icodec->sample_rate;
1764 codec->channels = icodec->channels;
1765 codec->frame_size = icodec->frame_size;
1766 codec->block_align= icodec->block_align;
1767 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1768 codec->block_align= 0;
1769 if(codec->codec_id == CODEC_ID_AC3)
1770 codec->block_align= 0;
1771 break;
1772 case CODEC_TYPE_VIDEO:
1773 codec->pix_fmt = icodec->pix_fmt;
1774 codec->width = icodec->width;
1775 codec->height = icodec->height;
1776 codec->has_b_frames = icodec->has_b_frames;
1777 break;
1778 case CODEC_TYPE_SUBTITLE:
1779 codec->width = icodec->width;
1780 codec->height = icodec->height;
1781 break;
1782 default:
1783 abort();
1784 }
1785 } else {
1786 switch(codec->codec_type) {
1787 case CODEC_TYPE_AUDIO:
1788 ost->fifo= av_fifo_alloc(1024);
1789 if(!ost->fifo)
1790 goto fail;
1791 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1792 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1793 icodec->request_channels = codec->channels;
1794 ist->decoding_needed = 1;
1795 ost->encoding_needed = 1;
1796 break;
1797 case CODEC_TYPE_VIDEO:
1798 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1799 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1800 ost->video_resample = ((codec->width != icodec->width -
1801 (frame_leftBand + frame_rightBand) +
1802 (frame_padleft + frame_padright)) ||
1803 (codec->height != icodec->height -
1804 (frame_topBand + frame_bottomBand) +
1805 (frame_padtop + frame_padbottom)) ||
1806 (codec->pix_fmt != icodec->pix_fmt));
1807 if (ost->video_crop) {
1808 ost->topBand = frame_topBand;
1809 ost->leftBand = frame_leftBand;
1810 }
1811 if (ost->video_pad) {
1812 ost->padtop = frame_padtop;
1813 ost->padleft = frame_padleft;
1814 ost->padbottom = frame_padbottom;
1815 ost->padright = frame_padright;
1816 if (!ost->video_resample) {
1817 avcodec_get_frame_defaults(&ost->pict_tmp);
1818 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1819 codec->width, codec->height))
1820 goto fail;
1821 }
1822 }
1823 if (ost->video_resample) {
1824 avcodec_get_frame_defaults(&ost->pict_tmp);
1825 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1826 codec->width, codec->height)) {
1827 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1828 av_exit(1);
1829 }
1830 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1831 ost->img_resample_ctx = sws_getContext(
1832 icodec->width - (frame_leftBand + frame_rightBand),
1833 icodec->height - (frame_topBand + frame_bottomBand),
1834 icodec->pix_fmt,
1835 codec->width - (frame_padleft + frame_padright),
1836 codec->height - (frame_padtop + frame_padbottom),
1837 codec->pix_fmt,
1838 sws_flags, NULL, NULL, NULL);
1839 if (ost->img_resample_ctx == NULL) {
1840 fprintf(stderr, "Cannot get resampling context\n");
1841 av_exit(1);
1842 }
1843 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1844 }
1845 ost->encoding_needed = 1;
1846 ist->decoding_needed = 1;
1847 break;
1848 case CODEC_TYPE_SUBTITLE:
1849 ost->encoding_needed = 1;
1850 ist->decoding_needed = 1;
1851 break;
1852 default:
1853 abort();
1854 break;
1855 }
1856 /* two pass mode */
1857 if (ost->encoding_needed &&
1858 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1859 char logfilename[1024];
1860 FILE *f;
1861 int size;
1862 char *logbuffer;
1863
1864 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1865 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1866 i);
1867 if (codec->flags & CODEC_FLAG_PASS1) {
1868 f = fopen(logfilename, "w");
1869 if (!f) {
1870 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1871 av_exit(1);
1872 }
1873 ost->logfile = f;
1874 } else {
1875 /* read the log file */
1876 f = fopen(logfilename, "r");
1877 if (!f) {
1878 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
1879 av_exit(1);
1880 }
1881 fseek(f, 0, SEEK_END);
1882 size = ftell(f);
1883 fseek(f, 0, SEEK_SET);
1884 logbuffer = av_malloc(size + 1);
1885 if (!logbuffer) {
1886 fprintf(stderr, "Could not allocate log buffer\n");
1887 av_exit(1);
1888 }
1889 size = fread(logbuffer, 1, size, f);
1890 fclose(f);
1891 logbuffer[size] = '\0';
1892 codec->stats_in = logbuffer;
1893 }
1894 }
1895 }
1896 if(codec->codec_type == CODEC_TYPE_VIDEO){
1897 int size= codec->width * codec->height;
1898 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
1899 }
1900 }
1901
1902 if (!bit_buffer)
1903 bit_buffer = av_malloc(bit_buffer_size);
1904 if (!bit_buffer) {
1905 ret = AVERROR(ENOMEM);
1906 goto fail;
1907 }
1908
1909 /* open each encoder */
1910 for(i=0;i<nb_ostreams;i++) {
1911 ost = ost_table[i];
1912 if (ost->encoding_needed) {
1913 AVCodec *codec = output_codecs[i];
1914 if (!codec)
1915 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1916 if (!codec) {
1917 snprintf(error, sizeof(error), "Unsupported codec for output stream #%d.%d",
1918 ost->file_index, ost->index);
1919 ret = AVERROR(EINVAL);
1920 goto dump_format;
1921 }
1922 if (avcodec_open(ost->st->codec, codec) < 0) {
1923 snprintf(error, sizeof(error), "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1924 ost->file_index, ost->index);
1925 ret = AVERROR(EINVAL);
1926 goto dump_format;
1927 }
1928 extra_size += ost->st->codec->extradata_size;
1929 }
1930 }
1931
1932 /* open each decoder */
1933 for(i=0;i<nb_istreams;i++) {
1934 ist = ist_table[i];
1935 if (ist->decoding_needed) {
1936 AVCodec *codec = input_codecs[i];
1937 if (!codec)
1938 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1939 if (!codec) {
1940 snprintf(error, sizeof(error), "Unsupported codec (id=%d) for input stream #%d.%d",
1941 ist->st->codec->codec_id, ist->file_index, ist->index);
1942 ret = AVERROR(EINVAL);
1943 goto dump_format;
1944 }
1945 if (avcodec_open(ist->st->codec, codec) < 0) {
1946 snprintf(error, sizeof(error), "Error while opening codec for input stream #%d.%d",
1947 ist->file_index, ist->index);
1948 ret = AVERROR(EINVAL);
1949 goto dump_format;
1950 }
1951 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1952 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1953 }
1954 }
1955
1956 /* init pts */
1957 for(i=0;i<nb_istreams;i++) {
1958 ist = ist_table[i];
1959 is = input_files[ist->file_index];
1960 ist->pts = 0;
1961 ist->next_pts = AV_NOPTS_VALUE;
1962 ist->is_start = 1;
1963 }
1964
1965 /* set meta data information from input file if required */
1966 for (i=0;i<nb_meta_data_maps;i++) {
1967 AVFormatContext *out_file;
1968 AVFormatContext *in_file;
1969 AVMetadataTag *mtag;
1970
1971 int out_file_index = meta_data_maps[i].out_file;
1972 int in_file_index = meta_data_maps[i].in_file;
1973 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1974 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
1975 out_file_index, out_file_index, in_file_index);
1976 ret = AVERROR(EINVAL);
1977 goto dump_format;
1978 }
1979 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1980 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
1981 in_file_index, out_file_index, in_file_index);
1982 ret = AVERROR(EINVAL);
1983 goto dump_format;
1984 }
1985
1986 out_file = output_files[out_file_index];
1987 in_file = input_files[in_file_index];
1988
1989
1990 mtag=NULL;
1991 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
1992 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
1993 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
1994 in_file->iformat->metadata_conv);
1995 }
1996
1997 /* open files and write file headers */
1998 for(i=0;i<nb_output_files;i++) {
1999 os = output_files[i];
2000 if (av_write_header(os) < 0) {
2001 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2002 ret = AVERROR(EINVAL);
2003 goto dump_format;
2004 }
2005 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2006 want_sdp = 0;
2007 }
2008 }
2009
2010 dump_format:
2011 /* dump the file output parameters - cannot be done before in case
2012 of stream copy */
2013 for(i=0;i<nb_output_files;i++) {
2014 dump_format(output_files[i], i, output_files[i]->filename, 1);
2015 }
2016
2017 /* dump the stream mapping */
2018 if (verbose >= 0) {
2019 fprintf(stderr, "Stream mapping:\n");
2020 for(i=0;i<nb_ostreams;i++) {
2021 ost = ost_table[i];
2022 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2023 ist_table[ost->source_index]->file_index,
2024 ist_table[ost->source_index]->index,
2025 ost->file_index,
2026 ost->index);
2027 if (ost->sync_ist != ist_table[ost->source_index])
2028 fprintf(stderr, " [sync #%d.%d]",
2029 ost->sync_ist->file_index,
2030 ost->sync_ist->index);
2031 fprintf(stderr, "\n");
2032 }
2033 }
2034
2035 if (ret) {
2036 fprintf(stderr, "%s\n", error);
2037 goto fail;
2038 }
2039
2040 if (want_sdp) {
2041 print_sdp(output_files, nb_output_files);
2042 }
2043
2044 if (!using_stdin && verbose >= 0) {
2045 fprintf(stderr, "Press [q] to stop encoding\n");
2046 url_set_interrupt_cb(decode_interrupt_cb);
2047 }
2048 term_init();
2049
2050 key = -1;
2051 timer_start = av_gettime();
2052
2053 for(; received_sigterm == 0;) {
2054 int file_index, ist_index;
2055 AVPacket pkt;
2056 double ipts_min;
2057 double opts_min;
2058
2059 redo:
2060 ipts_min= 1e100;
2061 opts_min= 1e100;
2062 /* if 'q' pressed, exits */
2063 if (!using_stdin) {
2064 if (q_pressed)
2065 break;
2066 /* read_key() returns 0 on EOF */
2067 key = read_key();
2068 if (key == 'q')
2069 break;
2070 }
2071
2072 /* select the stream that we must read now by looking at the
2073 smallest output pts */
2074 file_index = -1;
2075 for(i=0;i<nb_ostreams;i++) {
2076 double ipts, opts;
2077 ost = ost_table[i];
2078 os = output_files[ost->file_index];
2079 ist = ist_table[ost->source_index];
2080 if(no_packet[ist->file_index])
2081 continue;
2082 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2083 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2084 else
2085 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2086 ipts = (double)ist->pts;
2087 if (!file_table[ist->file_index].eof_reached){
2088 if(ipts < ipts_min) {
2089 ipts_min = ipts;
2090 if(input_sync ) file_index = ist->file_index;
2091 }
2092 if(opts < opts_min) {
2093 opts_min = opts;
2094 if(!input_sync) file_index = ist->file_index;
2095 }
2096 }
2097 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2098 file_index= -1;
2099 break;
2100 }
2101 }
2102 /* if none, if is finished */
2103 if (file_index < 0) {
2104 if(no_packet_count){
2105 no_packet_count=0;
2106 memset(no_packet, 0, sizeof(no_packet));
2107 usleep(10000);
2108 continue;
2109 }
2110 break;
2111 }
2112
2113 /* finish if recording time exhausted */
2114 if (opts_min >= (recording_time / 1000000.0))
2115 break;
2116
2117 /* finish if limit size exhausted */
2118 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2119 break;
2120
2121 /* read a frame from it and output it in the fifo */
2122 is = input_files[file_index];
2123 ret= av_read_frame(is, &pkt);
2124 if(ret == AVERROR(EAGAIN)){
2125 no_packet[file_index]=1;
2126 no_packet_count++;
2127 continue;
2128 }
2129 if (ret < 0) {
2130 file_table[file_index].eof_reached = 1;
2131 if (opt_shortest)
2132 break;
2133 else
2134 continue;
2135 }
2136
2137 no_packet_count=0;
2138 memset(no_packet, 0, sizeof(no_packet));
2139
2140 if (do_pkt_dump) {
2141 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2142 }
2143 /* the following test is needed in case new streams appear
2144 dynamically in stream : we ignore them */
2145 if (pkt.stream_index >= file_table[file_index].nb_streams)
2146 goto discard_packet;
2147 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2148 ist = ist_table[ist_index];
2149 if (ist->discard)
2150 goto discard_packet;
2151
2152 if (pkt.dts != AV_NOPTS_VALUE)
2153 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2154 if (pkt.pts != AV_NOPTS_VALUE)
2155 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2156
2157 if(input_files_ts_scale[file_index][pkt.stream_index]){
2158 if(pkt.pts != AV_NOPTS_VALUE)
2159 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2160 if(pkt.dts != AV_NOPTS_VALUE)
2161 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2162 }
2163
2164 // 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);
2165 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2166 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2167 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2168 int64_t delta= pkt_dts - ist->next_pts;
2169 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2170 input_files_ts_offset[ist->file_index]-= delta;
2171 if (verbose > 2)
2172 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2173 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2174 if(pkt.pts != AV_NOPTS_VALUE)
2175 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2176 }
2177 }
2178
2179 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2180 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2181
2182 if (verbose >= 0)
2183 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2184 ist->file_index, ist->index);
2185 if (exit_on_error)
2186 av_exit(1);
2187 av_free_packet(&pkt);
2188 goto redo;
2189 }
2190
2191 discard_packet:
2192 av_free_packet(&pkt);
2193
2194 /* dump report by using the output first video and audio streams */
2195 print_report(output_files, ost_table, nb_ostreams, 0);
2196 }
2197
2198 /* at the end of stream, we must flush the decoder buffers */
2199 for(i=0;i<nb_istreams;i++) {
2200 ist = ist_table[i];
2201 if (ist->decoding_needed) {
2202 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2203 }
2204 }
2205
2206 term_exit();
2207
2208 /* write the trailer if needed and close file */
2209 for(i=0;i<nb_output_files;i++) {
2210 os = output_files[i];
2211 av_write_trailer(os);
2212 }
2213
2214 /* dump report by using the first video and audio streams */
2215 print_report(output_files, ost_table, nb_ostreams, 1);
2216
2217 /* close each encoder */
2218 for(i=0;i<nb_ostreams;i++) {
2219 ost = ost_table[i];
2220 if (ost->encoding_needed) {
2221 av_freep(&ost->st->codec->stats_in);
2222 avcodec_close(ost->st->codec);
2223 }
2224 }
2225
2226 /* close each decoder */
2227 for(i=0;i<nb_istreams;i++) {
2228 ist = ist_table[i];
2229 if (ist->decoding_needed) {
2230 avcodec_close(ist->st->codec);
2231 }
2232 }
2233
2234 /* finished ! */
2235 ret = 0;
2236
2237 fail:
2238 av_freep(&bit_buffer);
2239 av_free(file_table);
2240
2241 if (ist_table) {
2242 for(i=0;i<nb_istreams;i++) {
2243 ist = ist_table[i];
2244 av_free(ist);
2245 }
2246 av_free(ist_table);
2247 }
2248 if (ost_table) {
2249 for(i=0;i<nb_ostreams;i++) {
2250 ost = ost_table[i];
2251 if (ost) {
2252 if (ost->logfile) {
2253 fclose(ost->logfile);
2254 ost->logfile = NULL;
2255 }
2256 av_fifo_free(ost->fifo); /* works even if fifo is not
2257 initialized but set to zero */
2258 av_free(ost->pict_tmp.data[0]);
2259 if (ost->video_resample)
2260 sws_freeContext(ost->img_resample_ctx);
2261 if (ost->resample)
2262 audio_resample_close(ost->resample);
2263 if (ost->reformat_ctx)
2264 av_audio_convert_free(ost->reformat_ctx);
2265 av_free(ost);
2266 }
2267 }
2268 av_free(ost_table);
2269 }
2270 return ret;
2271 }
2272
2273 #if 0
2274 int file_read(const char *filename)
2275 {
2276 URLContext *h;
2277 unsigned char buffer[1024];
2278 int len, i;
2279
2280 if (url_open(&h, filename, O_RDONLY) < 0) {
2281 printf("could not open '%s'\n", filename);
2282 return -1;
2283 }
2284 for(;;) {
2285 len = url_read(h, buffer, sizeof(buffer));
2286 if (len <= 0)
2287 break;
2288 for(i=0;i<len;i++) putchar(buffer[i]);
2289 }
2290 url_close(h);
2291 return 0;
2292 }
2293 #endif
2294
2295 static void opt_format(const char *arg)
2296 {
2297 /* compatibility stuff for pgmyuv */
2298 if (!strcmp(arg, "pgmyuv")) {
2299 pgmyuv_compatibility_hack=1;
2300 // opt_image_format(arg);
2301 arg = "image2";
2302 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2303 }
2304
2305 file_iformat = av_find_input_format(arg);
2306 file_oformat = guess_format(arg, NULL, NULL);
2307 if (!file_iformat && !file_oformat) {
2308 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2309 av_exit(1);
2310 }
2311 }
2312
2313 static void opt_video_rc_override_string(const char *arg)
2314 {
2315 video_rc_override_string = arg;
2316 }
2317
2318 static int opt_me_threshold(const char *opt, const char *arg)
2319 {
2320 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2321 return 0;
2322 }
2323
2324 static void opt_loglevel(const char *opt, const char *arg)
2325 {
2326 int level = parse_number_or_die(opt, arg, OPT_INT, INT_MIN, INT_MAX);
2327 av_log_set_level(level);
2328 }
2329
2330 static int opt_verbose(const char *opt, const char *arg)
2331 {
2332 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2333 return 0;
2334 }
2335
2336 static int opt_frame_rate(const char *opt, const char *arg)
2337 {
2338 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2339 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2340 av_exit(1);
2341 }
2342 return 0;
2343 }
2344
2345 static int opt_bitrate(const char *opt, const char *arg)
2346 {
2347 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2348
2349 opt_default(opt, arg);
2350
2351 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2352 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2353
2354 return 0;
2355 }
2356
2357 static void opt_frame_crop_top(const char *arg)
2358 {
2359 frame_topBand = atoi(arg);
2360 if (frame_topBand < 0) {
2361 fprintf(stderr, "Incorrect top crop size\n");
2362 av_exit(1);
2363 }
2364 if ((frame_topBand % 2) != 0) {
2365 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2366 av_exit(1);
2367 }
2368 if ((frame_topBand) >= frame_height){
2369 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2370 av_exit(1);
2371 }
2372 frame_height -= frame_topBand;
2373 }
2374
2375 static void opt_frame_crop_bottom(const char *arg)
2376 {
2377 frame_bottomBand = atoi(arg);
2378 if (frame_bottomBand < 0) {
2379 fprintf(stderr, "Incorrect bottom crop size\n");
2380 av_exit(1);
2381 }
2382 if ((frame_bottomBand % 2) != 0) {
2383 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2384 av_exit(1);
2385 }
2386 if ((frame_bottomBand) >= frame_height){
2387 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2388 av_exit(1);
2389 }
2390 frame_height -= frame_bottomBand;
2391 }
2392
2393 static void opt_frame_crop_left(const char *arg)
2394 {
2395 frame_leftBand = atoi(arg);
2396 if (frame_leftBand < 0) {
2397 fprintf(stderr, "Incorrect left crop size\n");
2398 av_exit(1);
2399 }
2400 if ((frame_leftBand % 2) != 0) {
2401 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2402 av_exit(1);
2403 }
2404 if ((frame_leftBand) >= frame_width){
2405 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2406 av_exit(1);
2407 }
2408 frame_width -= frame_leftBand;
2409 }
2410
2411 static void opt_frame_crop_right(const char *arg)
2412 {
2413 frame_rightBand = atoi(arg);
2414 if (frame_rightBand < 0) {
2415 fprintf(stderr, "Incorrect right crop size\n");
2416 av_exit(1);
2417 }
2418 if ((frame_rightBand % 2) != 0) {
2419 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2420 av_exit(1);
2421 }
2422 if ((frame_rightBand) >= frame_width){
2423 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2424 av_exit(1);
2425 }
2426 frame_width -= frame_rightBand;
2427 }
2428
2429 static void opt_frame_size(const char *arg)
2430 {
2431 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2432 fprintf(stderr, "Incorrect frame size\n");
2433 av_exit(1);
2434 }
2435 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2436 fprintf(stderr, "Frame size must be a multiple of 2\n");
2437 av_exit(1);
2438 }
2439 }
2440
2441
2442 #define SCALEBITS 10
2443 #define ONE_HALF (1 << (SCALEBITS - 1))
2444 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2445
2446 #define RGB_TO_Y(r, g, b) \
2447 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2448 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2449
2450 #define RGB_TO_U(r1, g1, b1, shift)\
2451 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2452 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2453
2454 #define RGB_TO_V(r1, g1, b1, shift)\
2455 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2456 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2457
2458 static void opt_pad_color(const char *arg) {
2459 /* Input is expected to be six hex digits similar to
2460 how colors are expressed in html tags (but without the #) */
2461 int rgb = strtol(arg, NULL, 16);
2462 int r,g,b;
2463
2464 r = (rgb >> 16);
2465 g = ((rgb >> 8) & 255);
2466 b = (rgb & 255);
2467
2468 padcolor[0] = RGB_TO_Y(r,g,b);
2469 padcolor[1] = RGB_TO_U(r,g,b,0);
2470 padcolor[2] = RGB_TO_V(r,g,b,0);
2471 }
2472
2473 static void opt_frame_pad_top(const char *arg)
2474 {
2475 frame_padtop = atoi(arg);
2476 if (frame_padtop < 0) {
2477 fprintf(stderr, "Incorrect top pad size\n");
2478 av_exit(1);
2479 }
2480 if ((frame_padtop % 2) != 0) {
2481 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2482 av_exit(1);
2483 }
2484 }
2485
2486 static void opt_frame_pad_bottom(const char *arg)
2487 {
2488 frame_padbottom = atoi(arg);
2489 if (frame_padbottom < 0) {
2490 fprintf(stderr, "Incorrect bottom pad size\n");
2491 av_exit(1);
2492 }
2493 if ((frame_padbottom % 2) != 0) {
2494 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2495 av_exit(1);
2496 }
2497 }
2498
2499
2500 static void opt_frame_pad_left(const char *arg)
2501 {
2502 frame_padleft = atoi(arg);
2503 if (frame_padleft < 0) {
2504 fprintf(stderr, "Incorrect left pad size\n");
2505 av_exit(1);
2506 }
2507 if ((frame_padleft % 2) != 0) {
2508 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2509 av_exit(1);
2510 }
2511 }
2512
2513
2514 static void opt_frame_pad_right(const char *arg)
2515 {
2516 frame_padright = atoi(arg);
2517 if (frame_padright < 0) {
2518 fprintf(stderr, "Incorrect right pad size\n");
2519 av_exit(1);
2520 }
2521 if ((frame_padright % 2) != 0) {
2522 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2523 av_exit(1);
2524 }
2525 }
2526
2527 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2528 {
2529 int i;
2530 char fmt_str[128];
2531 for (i=-1; i < nb_fmts; i++) {
2532 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2533 fprintf(stdout, "%s\n", fmt_str);
2534 }
2535 }
2536
2537 static void opt_frame_pix_fmt(const char *arg)
2538 {
2539 if (strcmp(arg, "list")) {
2540 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2541 if (frame_pix_fmt == PIX_FMT_NONE) {
2542 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2543 av_exit(1);
2544 }
2545 } else {
2546 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2547 av_exit(0);
2548 }
2549 }
2550
2551 static void opt_frame_aspect_ratio(const char *arg)
2552 {
2553 int x = 0, y = 0;
2554 double ar = 0;
2555 const char *p;
2556 char *end;
2557
2558 p = strchr(arg, ':');
2559 if (p) {
2560 x = strtol(arg, &end, 10);
2561 if (end == p)
2562 y = strtol(end+1, &end, 10);
2563 if (x > 0 && y > 0)
2564 ar = (double)x / (double)y;
2565 } else
2566 ar = strtod(arg, NULL);
2567
2568 if (!ar) {
2569 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2570 av_exit(1);
2571 }
2572 frame_aspect_ratio = ar;
2573 }
2574
2575 static int opt_metadata(const char *opt, const char *arg)
2576 {
2577 char *mid= strchr(arg, '=');
2578
2579 if(!mid){
2580 fprintf(stderr, "Missing =\n");
2581 av_exit(1);
2582 }
2583 *mid++= 0;
2584
2585 metadata_count++;
2586 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2587 metadata[metadata_count-1].key = av_strdup(arg);
2588 metadata[metadata_count-1].value= av_strdup(mid);
2589
2590 return 0;
2591 }
2592
2593 static void opt_qscale(const char *arg)
2594 {
2595 video_qscale = atof(arg);
2596 if (video_qscale <= 0 ||
2597 video_qscale > 255) {
2598 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2599 av_exit(1);
2600 }
2601 }
2602
2603 static void opt_top_field_first(const char *arg)
2604 {
2605 top_field_first= atoi(arg);
2606 }
2607
2608 static int opt_thread_count(const char *opt, const char *arg)
2609 {
2610 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2611 #if !HAVE_THREADS
2612 if (verbose >= 0)
2613 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2614 #endif
2615 return 0;
2616 }
2617
2618 static void opt_audio_sample_fmt(const char *arg)
2619 {
2620 if (strcmp(arg, "list"))
2621 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2622 else {
2623 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2624 av_exit(0);
2625 }
2626 }
2627
2628 static int opt_audio_rate(const char *opt, const char *arg)
2629 {
2630 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2631 return 0;
2632 }
2633
2634 static int opt_audio_channels(const char *opt, const char *arg)
2635 {
2636 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2637 return 0;
2638 }
2639
2640 static void opt_video_channel(const char *arg)
2641 {
2642 video_channel = strtol(arg, NULL, 0);
2643 }
2644
2645 static void opt_video_standard(const char *arg)
2646 {
2647 video_standard = av_strdup(arg);
2648 }
2649
2650 static void opt_codec(int *pstream_copy, char **pcodec_name,
2651 int codec_type, const char *arg)
2652 {
2653 av_freep(pcodec_name);
2654 if (!strcmp(arg, "copy")) {
2655 *pstream_copy = 1;
2656 } else {
2657 *pcodec_name = av_strdup(arg);
2658 }
2659 }
2660
2661 static void opt_audio_codec(const char *arg)
2662 {
2663 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2664 }
2665
2666 static void opt_audio_tag(const char *arg)
2667 {
2668 char *tail;
2669 audio_codec_tag= strtol(arg, &tail, 0);
2670
2671 if(!tail || *tail)
2672 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2673 }
2674
2675 static void opt_video_tag(const char *arg)
2676 {
2677 char *tail;
2678 video_codec_tag= strtol(arg, &tail, 0);
2679
2680 if(!tail || *tail)
2681 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2682 }
2683
2684 static void opt_video_codec(const char *arg)
2685 {
2686 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2687 }
2688
2689 static void opt_subtitle_codec(const char *arg)
2690 {
2691 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2692 }
2693
2694 static void opt_subtitle_tag(const char *arg)
2695 {
2696 char *tail;
2697 subtitle_codec_tag= strtol(arg, &tail, 0);
2698
2699 if(!tail || *tail)
2700 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2701 }
2702
2703 static void opt_map(const char *arg)
2704 {
2705 AVStreamMap *m;
2706 char *p;
2707
2708 m = &stream_maps[nb_stream_maps++];
2709
2710 m->file_index = strtol(arg, &p, 0);
2711 if (*p)
2712 p++;
2713
2714 m->stream_index = strtol(p, &p, 0);
2715 if (*p) {
2716 p++;
2717 m->sync_file_index = strtol(p, &p, 0);
2718 if (*p)
2719 p++;
2720 m->sync_stream_index = strtol(p, &p, 0);
2721 } else {
2722 m->sync_file_index = m->file_index;
2723 m->sync_stream_index = m->stream_index;
2724 }
2725 }
2726
2727 static void opt_map_meta_data(const char *arg)
2728 {
2729 AVMetaDataMap *m;
2730 char *p;
2731
2732 m = &meta_data_maps[nb_meta_data_maps++];
2733
2734 m->out_file = strtol(arg, &p, 0);
2735 if (*p)
2736 p++;
2737
2738 m->in_file = strtol(p, &p, 0);
2739 }
2740
2741 static void opt_input_ts_scale(const char *arg)
2742 {
2743 unsigned int stream;
2744 double scale;
2745 char *p;
2746
2747 stream = strtol(arg, &p, 0);
2748 if (*p)
2749 p++;
2750 scale= strtod(p, &p);
2751
2752 if(stream >= MAX_STREAMS)
2753 av_exit(1);
2754
2755 input_files_ts_scale[nb_input_files][stream]= scale;
2756 }
2757
2758 static int opt_recording_time(const char *opt, const char *arg)
2759 {
2760 recording_time = parse_time_or_die(opt, arg, 1);
2761 return 0;
2762 }
2763
2764 static int opt_start_time(const char *opt, const char *arg)
2765 {
2766 start_time = parse_time_or_die(opt, arg, 1);
2767 return 0;
2768 }
2769
2770 static int opt_rec_timestamp(const char *opt, const char *arg)
2771 {
2772 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2773 return 0;
2774 }
2775
2776 static int opt_input_ts_offset(const char *opt, const char *arg)
2777 {
2778 input_ts_offset = parse_time_or_die(opt, arg, 1);
2779 return 0;
2780 }
2781
2782 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2783 {
2784 const char *codec_string = encoder ? "encoder" : "decoder";
2785 AVCodec *codec;
2786
2787 if(!name)
2788 return CODEC_ID_NONE;
2789 codec = encoder ?
2790 avcodec_find_encoder_by_name(name) :
2791 avcodec_find_decoder_by_name(name);
2792 if(!codec) {
2793 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2794 av_exit(1);
2795 }
2796 if(codec->type != type) {
2797 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2798 av_exit(1);
2799 }
2800 return codec->id;
2801 }
2802
2803 static void opt_input_file(const char *filename)
2804 {
2805 AVFormatContext *ic;
2806 AVFormatParameters params, *ap = &params;
2807 int err, i, ret, rfps, rfps_base;
2808 int64_t timestamp;
2809
2810 if (!strcmp(filename, "-"))
2811 filename = "pipe:";
2812
2813 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2814 !strcmp(filename, "/dev/stdin");
2815
2816 /* get default parameters from command line */
2817 ic = avformat_alloc_context();
2818
2819 memset(ap, 0, sizeof(*ap));
2820 ap->prealloced_context = 1;
2821 ap->sample_rate = audio_sample_rate;
2822 ap->channels = audio_channels;
2823 ap->time_base.den = frame_rate.num;
2824 ap->time_base.num = frame_rate.den;
2825 ap->width = frame_width + frame_padleft + frame_padright;
2826 ap->height = frame_height + frame_padtop + frame_padbottom;
2827 ap->pix_fmt = frame_pix_fmt;
2828 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2829 ap->channel = video_channel;
2830 ap->standard = video_standard;
2831 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2832 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2833 if(pgmyuv_compatibility_hack)
2834 ap->video_codec_id= CODEC_ID_PGMYUV;
2835
2836 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2837
2838 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2839 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2840 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2841 ic->flags |= AVFMT_FLAG_NONBLOCK;
2842
2843 /* open the input file with generic libav function */
2844 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2845 if (err < 0) {
2846 print_error(filename, err);
2847 av_exit(1);
2848 }
2849 if(opt_programid) {
2850 int i;
2851 for(i=0; i<ic->nb_programs; i++)
2852 if(ic->programs[i]->id != opt_programid)
2853 ic->programs[i]->discard = AVDISCARD_ALL;
2854 }
2855
2856 ic->loop_input = loop_input;
2857
2858 /* If not enough info to get the stream parameters, we decode the
2859 first frames to get it. (used in mpeg case for example) */
2860 ret = av_find_stream_info(ic);
2861 if (ret < 0 && verbose >= 0) {
2862 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2863 av_exit(1);
2864 }
2865
2866 timestamp = start_time;
2867 /* add the stream start time */
2868 if (ic->start_time != AV_NOPTS_VALUE)
2869 timestamp += ic->start_time;
2870
2871 /* if seeking requested, we execute it */
2872 if (start_time != 0) {
2873 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2874 if (ret < 0) {
2875 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2876 filename, (double)timestamp / AV_TIME_BASE);
2877 }
2878 /* reset seek info */
2879 start_time = 0;
2880 }
2881
2882 /* update the current parameters so that they match the one of the input stream */
2883 for(i=0;i<ic->nb_streams;i++) {
2884 AVCodecContext *enc = ic->streams[i]->codec;
2885 if(thread_count>1)
2886 avcodec_thread_init(enc, thread_count);
2887 enc->thread_count= thread_count;
2888 switch(enc->codec_type) {
2889 case CODEC_TYPE_AUDIO:
2890 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2891 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2892 channel_layout = enc->channel_layout;
2893 audio_channels = enc->channels;
2894 audio_sample_rate = enc->sample_rate;
2895 audio_sample_fmt = enc->sample_fmt;
2896 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2897 if(audio_disable)
2898 ic->streams[i]->discard= AVDISCARD_ALL;
2899 break;
2900 case CODEC_TYPE_VIDEO:
2901 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2902 frame_height = enc->height;
2903 frame_width = enc->width;
2904 if(ic->streams[i]->sample_aspect_ratio.num)
2905 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2906 else
2907 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2908 frame_aspect_ratio *= (float) enc->width / enc->height;
2909 frame_pix_fmt = enc->pix_fmt;
2910 rfps = ic->streams[i]->r_frame_rate.num;
2911 rfps_base = ic->streams[i]->r_frame_rate.den;
2912 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2913 if(me_threshold)
2914 enc->debug |= FF_DEBUG_MV;
2915
2916 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2917
2918 if (verbose >= 0)
2919 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2920 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2921
2922 (float)rfps / rfps_base, rfps, rfps_base);
2923 }
2924 /* update the current frame rate to match the stream frame rate */
2925 frame_rate.num = rfps;
2926 frame_rate.den = rfps_base;
2927
2928 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2929 if(video_disable)
2930 ic->streams[i]->discard= AVDISCARD_ALL;
2931 else if(video_discard)
2932 ic->streams[i]->discard= video_discard;
2933 break;
2934 case CODEC_TYPE_DATA:
2935 break;
2936 case CODEC_TYPE_SUBTITLE:
2937 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2938 if(subtitle_disable)
2939 ic->streams[i]->discard = AVDISCARD_ALL;
2940 break;
2941 case CODEC_TYPE_ATTACHMENT:
2942 case CODEC_TYPE_UNKNOWN:
2943 nb_icodecs++;
2944 break;
2945 default:
2946 abort();
2947 }
2948 }
2949
2950 input_files[nb_input_files] = ic;
2951 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2952 /* dump the file content */
2953 if (verbose >= 0)
2954 dump_format(ic, nb_input_files, filename, 0);
2955
2956 nb_input_files++;
2957 file_iformat = NULL;
2958 file_oformat = NULL;
2959
2960 video_channel = 0;
2961
2962 av_freep(&video_codec_name);
2963 av_freep(&audio_codec_name);
2964 av_freep(&subtitle_codec_name);
2965 }
2966
2967 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2968 int *has_subtitle_ptr)
2969 {
2970 int has_video, has_audio, has_subtitle, i, j;
2971 AVFormatContext *ic;
2972
2973 has_video = 0;
2974 has_audio = 0;
2975 has_subtitle = 0;
2976 for(j=0;j<nb_input_files;j++) {
2977 ic = input_files[j];
2978 for(i=0;i<ic->nb_streams;i++) {
2979 AVCodecContext *enc = ic->streams[i]->codec;
2980 switch(enc->codec_type) {
2981 case CODEC_TYPE_AUDIO:
2982 has_audio = 1;
2983 break;
2984 case CODEC_TYPE_VIDEO:
2985 has_video = 1;
2986 break;
2987 case CODEC_TYPE_SUBTITLE:
2988 has_subtitle = 1;
2989 break;
2990 case CODEC_TYPE_DATA:
2991 case CODEC_TYPE_ATTACHMENT:
2992 case CODEC_TYPE_UNKNOWN:
2993 break;
2994 default:
2995 abort();
2996 }
2997 }
2998 }
2999 *has_video_ptr = has_video;
3000 *has_audio_ptr = has_audio;
3001 *has_subtitle_ptr = has_subtitle;
3002 }
3003
3004 static void new_video_stream(AVFormatContext *oc)
3005 {
3006 AVStream *st;
3007 AVCodecContext *video_enc;
3008 int codec_id;
3009
3010 st = av_new_stream(oc, oc->nb_streams);
3011 if (!st) {
3012 fprintf(stderr, "Could not alloc stream\n");
3013 av_exit(1);
3014 }
3015 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3016 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3017 video_bitstream_filters= NULL;
3018
3019 if(thread_count>1)
3020 avcodec_thread_init(st->codec, thread_count);
3021
3022 video_enc = st->codec;
3023
3024 if(video_codec_tag)
3025 video_enc->codec_tag= video_codec_tag;
3026
3027 if( (video_global_header&1)
3028 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3029 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3030 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3031 }
3032 if(video_global_header&2){
3033 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3034 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3035 }
3036
3037 if (video_stream_copy) {
3038 st->stream_copy = 1;
3039 video_enc->codec_type = CODEC_TYPE_VIDEO;
3040 video_enc->sample_aspect_ratio =
3041 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3042 } else {
3043 const char *p;
3044 int i;
3045 AVCodec *codec;
3046 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3047
3048 if (video_codec_name) {
3049 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3050 codec = avcodec_find_encoder_by_name(video_codec_name);
3051 output_codecs[nb_ocodecs] = codec;
3052 } else {
3053 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3054 codec = avcodec_find_encoder(codec_id);
3055 }
3056
3057 video_enc->codec_id = codec_id;
3058
3059 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3060
3061 if (codec && codec->supported_framerates && !force_fps)
3062 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3063 video_enc->time_base.den = fps.num;
3064 video_enc->time_base.num = fps.den;
3065
3066 video_enc->width = frame_width + frame_padright + frame_padleft;
3067 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3068 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3069 video_enc->pix_fmt = frame_pix_fmt;
3070 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3071
3072 if(codec && codec->pix_fmts){
3073 const enum PixelFormat *p= codec->pix_fmts;
3074 for(; *p!=-1; p++){
3075 if(*p == video_enc->pix_fmt)
3076 break;
3077 }
3078 if(*p == -1)
3079 video_enc->pix_fmt = codec->pix_fmts[0];
3080 }
3081
3082 if (intra_only)
3083 video_enc->gop_size = 0;
3084 if (video_qscale || same_quality) {
3085 video_enc->flags |= CODEC_FLAG_QSCALE;
3086 video_enc->global_quality=
3087 st->quality = FF_QP2LAMBDA * video_qscale;
3088 }
3089
3090 if(intra_matrix)
3091 video_enc->intra_matrix = intra_matrix;
3092 if(inter_matrix)
3093 video_enc->inter_matrix = inter_matrix;
3094
3095 video_enc->thread_count = thread_count;
3096 p= video_rc_override_string;
3097 for(i=0; p; i++){
3098 int start, end, q;
3099 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3100 if(e!=3){
3101 fprintf(stderr, "error parsing rc_override\n");
3102 av_exit(1);
3103 }
3104 video_enc->rc_override=
3105 av_realloc(video_enc->rc_override,
3106 sizeof(RcOverride)*(i+1));
3107 video_enc->rc_override[i].start_frame= start;
3108 video_enc->rc_override[i].end_frame = end;
3109 if(q>0){
3110 video_enc->rc_override[i].qscale= q;
3111 video_enc->rc_override[i].quality_factor= 1.0;
3112 }
3113 else{
3114 video_enc->rc_override[i].qscale= 0;
3115 video_enc->rc_override[i].quality_factor= -q/100.0;
3116 }
3117 p= strchr(p, '/');
3118 if(p) p++;
3119 }
3120 video_enc->rc_override_count=i;
3121 if (!video_enc->rc_initial_buffer_occupancy)
3122 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3123 video_enc->me_threshold= me_threshold;
3124 video_enc->intra_dc_precision= intra_dc_precision - 8;
3125
3126 if (do_psnr)
3127 video_enc->flags|= CODEC_FLAG_PSNR;
3128
3129 /* two pass mode */
3130 if (do_pass) {
3131 if (do_pass == 1) {
3132 video_enc->flags |= CODEC_FLAG_PASS1;
3133 } else {
3134 video_enc->flags |= CODEC_FLAG_PASS2;
3135 }
3136 }
3137 }
3138 nb_ocodecs++;
3139
3140 /* reset some key parameters */
3141 video_disable = 0;
3142 av_freep(&video_codec_name);
3143 video_stream_copy = 0;
3144 }
3145
3146 static void new_audio_stream(AVFormatContext *oc)
3147 {
3148 AVStream *st;
3149 AVCodecContext *audio_enc;
3150 int codec_id;
3151
3152 st = av_new_stream(oc, oc->nb_streams);
3153 if (!st) {
3154 fprintf(stderr, "Could not alloc stream\n");
3155 av_exit(1);
3156 }
3157 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3158
3159 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3160 audio_bitstream_filters= NULL;
3161
3162 if(thread_count>1)
3163 avcodec_thread_init(st->codec, thread_count);
3164
3165 audio_enc = st->codec;
3166 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3167
3168 if(audio_codec_tag)
3169 audio_enc->codec_tag= audio_codec_tag;
3170
3171 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3172 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3173 avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3174 }
3175 if (audio_stream_copy) {
3176 st->stream_copy = 1;
3177 audio_enc->channels = audio_channels;
3178 } else {
3179 AVCodec *codec;
3180
3181 set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3182
3183 if (audio_codec_name) {
3184 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3185 codec = avcodec_find_encoder_by_name(audio_codec_name);
3186 output_codecs[nb_ocodecs] = codec;
3187 } else {
3188 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3189 codec = avcodec_find_encoder(codec_id);
3190 }
3191 audio_enc->codec_id = codec_id;
3192
3193 if (audio_qscale > QSCALE_NONE) {
3194 audio_enc->flags |= CODEC_FLAG_QSCALE;
3195 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3196 }
3197 audio_enc->thread_count = thread_count;
3198 audio_enc->channels = audio_channels;
3199 audio_enc->sample_fmt = audio_sample_fmt;
3200 audio_enc->channel_layout = channel_layout;
3201
3202 if(codec && codec->sample_fmts){
3203 const enum SampleFormat *p= codec->sample_fmts;
3204 for(; *p!=-1; p++){
3205 if(*p == audio_enc->sample_fmt)
3206 break;
3207 }
3208 if(*p == -1)
3209 audio_enc->sample_fmt = codec->sample_fmts[0];
3210 }
3211 }