Remove further 1sample=2byte assumptions within FFmpeg to allow
[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 500
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavformat/framehook.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/audioconvert.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #ifdef HAVE_SYS_RESOURCE_H
45 #include <sys/types.h>
46 #include <sys/resource.h>
47 #elif defined(HAVE_GETPROCESSTIMES)
48 #include <windows.h>
49 #endif
50
51 #if defined(HAVE_TERMIOS_H)
52 #include <fcntl.h>
53 #include <sys/ioctl.h>
54 #include <sys/time.h>
55 #include <termios.h>
56 #elif defined(HAVE_CONIO_H)
57 #include <conio.h>
58 #endif
59 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
60 #include <time.h>
61
62 #include "cmdutils.h"
63
64 #undef NDEBUG
65 #include <assert.h>
66
67 #undef exit
68
69 const char program_name[] = "FFmpeg";
70 const int program_birth_year = 2000;
71
72 /* select an input stream for an output stream */
73 typedef struct AVStreamMap {
74 int file_index;
75 int stream_index;
76 int sync_file_index;
77 int sync_stream_index;
78 } AVStreamMap;
79
80 /** select an input file for an output file */
81 typedef struct AVMetaDataMap {
82 int out_file;
83 int in_file;
84 } AVMetaDataMap;
85
86 static const OptionDef options[];
87
88 #define MAX_FILES 20
89
90 static AVFormatContext *input_files[MAX_FILES];
91 static int64_t input_files_ts_offset[MAX_FILES];
92 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
93 static int nb_input_files = 0;
94
95 static AVFormatContext *output_files[MAX_FILES];
96 static int nb_output_files = 0;
97
98 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
99 static int nb_stream_maps;
100
101 static AVMetaDataMap meta_data_maps[MAX_FILES];
102 static int nb_meta_data_maps;
103
104 static AVInputFormat *file_iformat;
105 static AVOutputFormat *file_oformat;
106 static int frame_width = 0;
107 static int frame_height = 0;
108 static float frame_aspect_ratio = 0;
109 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
110 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
111 static int frame_padtop = 0;
112 static int frame_padbottom = 0;
113 static int frame_padleft = 0;
114 static int frame_padright = 0;
115 static int padcolor[3] = {16,128,128}; /* default to black */
116 static int frame_topBand = 0;
117 static int frame_bottomBand = 0;
118 static int frame_leftBand = 0;
119 static int frame_rightBand = 0;
120 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
121 static AVRational frame_rate;
122 static float video_qscale = 0;
123 static uint16_t *intra_matrix = NULL;
124 static uint16_t *inter_matrix = NULL;
125 #if 0 //experimental, (can be removed)
126 static float video_rc_qsquish=1.0;
127 static float video_rc_qmod_amp=0;
128 static int video_rc_qmod_freq=0;
129 #endif
130 static const char *video_rc_override_string=NULL;
131 static int video_disable = 0;
132 static int video_discard = 0;
133 static char *video_codec_name = NULL;
134 static int video_codec_tag = 0;
135 static int same_quality = 0;
136 static int do_deinterlace = 0;
137 static int top_field_first = -1;
138 static int me_threshold = 0;
139 static int intra_dc_precision = 8;
140 static int loop_input = 0;
141 static int loop_output = AVFMT_NOOUTPUTLOOP;
142 static int qp_hist = 0;
143
144 static int intra_only = 0;
145 static int audio_sample_rate = 44100;
146 #define QSCALE_NONE -99999
147 static float audio_qscale = QSCALE_NONE;
148 static int audio_disable = 0;
149 static int audio_channels = 1;
150 static char *audio_codec_name = NULL;
151 static int audio_codec_tag = 0;
152 static char *audio_language = NULL;
153
154 static int subtitle_disable = 0;
155 static char *subtitle_codec_name = NULL;
156 static char *subtitle_language = NULL;
157
158 static float mux_preload= 0.5;
159 static float mux_max_delay= 0.7;
160
161 static int64_t recording_time = INT64_MAX;
162 static int64_t start_time = 0;
163 static int64_t rec_timestamp = 0;
164 static int64_t input_ts_offset = 0;
165 static int file_overwrite = 0;
166 static char *str_title = NULL;
167 static char *str_author = NULL;
168 static char *str_copyright = NULL;
169 static char *str_comment = NULL;
170 static char *str_genre = NULL;
171 static char *str_album = NULL;
172 static int do_benchmark = 0;
173 static int do_hex_dump = 0;
174 static int do_pkt_dump = 0;
175 static int do_psnr = 0;
176 static int do_pass = 0;
177 static char *pass_logfilename = NULL;
178 static int audio_stream_copy = 0;
179 static int video_stream_copy = 0;
180 static int subtitle_stream_copy = 0;
181 static int video_sync_method= -1;
182 static int audio_sync_method= 0;
183 static float audio_drift_threshold= 0.1;
184 static int copy_ts= 0;
185 static int opt_shortest = 0; //
186 static int video_global_header = 0;
187 static char *vstats_filename;
188 static FILE *vstats_file;
189 static int opt_programid = 0;
190
191 static int rate_emu = 0;
192
193 static int video_channel = 0;
194 static char *video_standard;
195
196 static int audio_volume = 256;
197
198 static int using_stdin = 0;
199 static int using_vhook = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int q_pressed = 0;
203 static int64_t video_size = 0;
204 static int64_t audio_size = 0;
205 static int64_t extra_size = 0;
206 static int nb_frames_dup = 0;
207 static int nb_frames_drop = 0;
208 static int input_sync;
209 static uint64_t limit_filesize = 0; //
210
211 static int pgmyuv_compatibility_hack=0;
212 static float dts_delta_threshold = 10;
213
214 static unsigned int sws_flags = SWS_BICUBIC;
215
216 static const char **opt_names;
217 static int opt_name_count;
218 static AVCodecContext *avctx_opts[CODEC_TYPE_NB];
219 static AVFormatContext *avformat_opts;
220 static struct SwsContext *sws_opts;
221 static int64_t timer_start;
222
223 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
225 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
226 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
227
228 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
229
230 struct AVInputStream;
231
232 typedef struct AVOutputStream {
233 int file_index; /* file index */
234 int index; /* stream index in the output file */
235 int source_index; /* AVInputStream index */
236 AVStream *st; /* stream in the output file */
237 int encoding_needed; /* true if encoding needed for this stream */
238 int frame_number;
239 /* input pts and corresponding output pts
240 for A/V sync */
241 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
242 struct AVInputStream *sync_ist; /* input stream to sync against */
243 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
244 /* video only */
245 int video_resample;
246 AVFrame pict_tmp; /* temporary image for resampling */
247 struct SwsContext *img_resample_ctx; /* for image resampling */
248 int resample_height;
249
250 int video_crop;
251 int topBand; /* cropping area sizes */
252 int leftBand;
253
254 int video_pad;
255 int padtop; /* padding area sizes */
256 int padbottom;
257 int padleft;
258 int padright;
259
260 /* audio only */
261 int audio_resample;
262 ReSampleContext *resample; /* for audio resampling */
263 int reformat_pair;
264 AVAudioConvert *reformat_ctx;
265 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
266 FILE *logfile;
267 } AVOutputStream;
268
269 typedef struct AVInputStream {
270 int file_index;
271 int index;
272 AVStream *st;
273 int discard; /* true if stream data should be discarded */
274 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
275 int64_t sample_index; /* current sample */
276
277 int64_t start; /* time when read started */
278 unsigned long frame; /* current frame */
279 int64_t next_pts; /* synthetic pts for cases where pkt.pts
280 is not defined */
281 int64_t pts; /* current pts */
282 int is_start; /* is 1 at the start and after a discontinuity */
283 } AVInputStream;
284
285 typedef struct AVInputFile {
286 int eof_reached; /* true if eof reached */
287 int ist_index; /* index of first stream in ist_table */
288 int buffer_size; /* current total buffer size */
289 int nb_streams; /* nb streams we are aware of */
290 } AVInputFile;
291
292 #ifdef HAVE_TERMIOS_H
293
294 /* init terminal so that we can grab keys */
295 static struct termios oldtty;
296 #endif
297
298 static void term_exit(void)
299 {
300 #ifdef HAVE_TERMIOS_H
301 tcsetattr (0, TCSANOW, &oldtty);
302 #endif
303 }
304
305 static volatile sig_atomic_t received_sigterm = 0;
306
307 static void
308 sigterm_handler(int sig)
309 {
310 received_sigterm = sig;
311 term_exit();
312 }
313
314 static void term_init(void)
315 {
316 #ifdef HAVE_TERMIOS_H
317 struct termios tty;
318
319 tcgetattr (0, &tty);
320 oldtty = tty;
321
322 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
323 |INLCR|IGNCR|ICRNL|IXON);
324 tty.c_oflag |= OPOST;
325 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
326 tty.c_cflag &= ~(CSIZE|PARENB);
327 tty.c_cflag |= CS8;
328 tty.c_cc[VMIN] = 1;
329 tty.c_cc[VTIME] = 0;
330
331 tcsetattr (0, TCSANOW, &tty);
332 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
333 #endif
334
335 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
336 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
337 /*
338 register a function to be called at normal program termination
339 */
340 atexit(term_exit);
341 #ifdef CONFIG_BEOS_NETSERVER
342 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
343 #endif
344 }
345
346 /* read a key without blocking */
347 static int read_key(void)
348 {
349 #if defined(HAVE_TERMIOS_H)
350 int n = 1;
351 unsigned char ch;
352 #ifndef CONFIG_BEOS_NETSERVER
353 struct timeval tv;
354 fd_set rfds;
355
356 FD_ZERO(&rfds);
357 FD_SET(0, &rfds);
358 tv.tv_sec = 0;
359 tv.tv_usec = 0;
360 n = select(1, &rfds, NULL, NULL, &tv);
361 #endif
362 if (n > 0) {
363 n = read(0, &ch, 1);
364 if (n == 1)
365 return ch;
366
367 return n;
368 }
369 #elif defined(HAVE_CONIO_H)
370 if(kbhit())
371 return(getch());
372 #endif
373 return -1;
374 }
375
376 static int decode_interrupt_cb(void)
377 {
378 return q_pressed || (q_pressed = read_key() == 'q');
379 }
380
381 static int av_exit(int ret)
382 {
383 int i;
384
385 /* close files */
386 for(i=0;i<nb_output_files;i++) {
387 /* maybe av_close_output_file ??? */
388 AVFormatContext *s = output_files[i];
389 int j;
390 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
391 url_fclose(s->pb);
392 for(j=0;j<s->nb_streams;j++) {
393 av_free(s->streams[j]->codec);
394 av_free(s->streams[j]);
395 }
396 av_free(s);
397 }
398 for(i=0;i<nb_input_files;i++)
399 av_close_input_file(input_files[i]);
400
401 av_free(intra_matrix);
402 av_free(inter_matrix);
403
404 if (vstats_file)
405 fclose(vstats_file);
406 av_free(vstats_filename);
407
408 av_free(opt_names);
409
410 av_free(video_codec_name);
411 av_free(audio_codec_name);
412 av_free(subtitle_codec_name);
413
414 av_free(video_standard);
415
416 #ifdef CONFIG_POWERPC_PERF
417 extern void powerpc_display_perf_report(void);
418 powerpc_display_perf_report();
419 #endif /* CONFIG_POWERPC_PERF */
420
421 if (received_sigterm) {
422 fprintf(stderr,
423 "Received signal %d: terminating.\n",
424 (int) received_sigterm);
425 exit (255);
426 }
427
428 exit(ret); /* not all OS-es handle main() return value */
429 return ret;
430 }
431
432 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
433 {
434 int i, err;
435 AVFormatContext *ic;
436 int nopts = 0;
437
438 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
439 if (err < 0)
440 return err;
441 /* copy stream format */
442 s->nb_streams = ic->nb_streams;
443 for(i=0;i<ic->nb_streams;i++) {
444 AVStream *st;
445
446 // FIXME: a more elegant solution is needed
447 st = av_mallocz(sizeof(AVStream));
448 memcpy(st, ic->streams[i], sizeof(AVStream));
449 st->codec = avcodec_alloc_context();
450 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
451 s->streams[i] = st;
452
453 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
454 st->stream_copy = 1;
455 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
456 st->stream_copy = 1;
457
458 if(!st->codec->thread_count)
459 st->codec->thread_count = 1;
460 if(st->codec->thread_count>1)
461 avcodec_thread_init(st->codec, st->codec->thread_count);
462
463 if(st->codec->flags & CODEC_FLAG_BITEXACT)
464 nopts = 1;
465 }
466
467 if (!nopts)
468 s->timestamp = av_gettime();
469
470 av_close_input_file(ic);
471 return 0;
472 }
473
474 static double
475 get_sync_ipts(const AVOutputStream *ost)
476 {
477 const AVInputStream *ist = ost->sync_ist;
478 return (double)(ist->pts - start_time)/AV_TIME_BASE;
479 }
480
481 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
482 int ret;
483
484 while(bsfc){
485 AVPacket new_pkt= *pkt;
486 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
487 &new_pkt.data, &new_pkt.size,
488 pkt->data, pkt->size,
489 pkt->flags & PKT_FLAG_KEY);
490 if(a>0){
491 av_free_packet(pkt);
492 new_pkt.destruct= av_destruct_packet;
493 } else if(a<0){
494 fprintf(stderr, "%s failed for stream %d, codec %s",
495 bsfc->filter->name, pkt->stream_index,
496 avctx->codec ? avctx->codec->name : "copy");
497 print_error("", a);
498 }
499 *pkt= new_pkt;
500
501 bsfc= bsfc->next;
502 }
503
504 ret= av_interleaved_write_frame(s, pkt);
505 if(ret < 0){
506 print_error("av_interleaved_write_frame()", ret);
507 av_exit(1);
508 }
509 }
510
511 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
512
513 static void do_audio_out(AVFormatContext *s,
514 AVOutputStream *ost,
515 AVInputStream *ist,
516 unsigned char *buf, int size)
517 {
518 uint8_t *buftmp;
519 static uint8_t *audio_buf = NULL;
520 static uint8_t *audio_out = NULL;
521 static uint8_t *audio_out2 = NULL;
522 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
523
524 int size_out, frame_bytes, ret;
525 AVCodecContext *enc= ost->st->codec;
526 AVCodecContext *dec= ist->st->codec;
527 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
528 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
529
530 /* SC: dynamic allocation of buffers */
531 if (!audio_buf)
532 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
533 if (!audio_out)
534 audio_out = av_malloc(audio_out_size);
535 if (!audio_buf || !audio_out)
536 return; /* Should signal an error ! */
537
538 if (enc->channels != dec->channels)
539 ost->audio_resample = 1;
540
541 if (ost->audio_resample && !ost->resample) {
542 if (dec->sample_fmt != SAMPLE_FMT_S16) {
543 fprintf(stderr, "Audio resampler only works with 16 bits per sample, patch welcome.\n");
544 av_exit(1);
545 }
546 ost->resample = audio_resample_init(enc->channels, dec->channels,
547 enc->sample_rate, dec->sample_rate);
548 if (!ost->resample) {
549 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
550 dec->channels, dec->sample_rate,
551 enc->channels, enc->sample_rate);
552 av_exit(1);
553 }
554 }
555
556 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
557 if (dec->sample_fmt!=enc->sample_fmt &&
558 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
559 if (!audio_out2)
560 audio_out2 = av_malloc(audio_out_size);
561 if (!audio_out2)
562 av_exit(1);
563 if (ost->reformat_ctx)
564 av_audio_convert_free(ost->reformat_ctx);
565 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
566 dec->sample_fmt, 1, NULL, 0);
567 if (!ost->reformat_ctx) {
568 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
569 avcodec_get_sample_fmt_name(dec->sample_fmt),
570 avcodec_get_sample_fmt_name(enc->sample_fmt));
571 av_exit(1);
572 }
573 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
574 }
575
576 if(audio_sync_method){
577 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
578 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
579 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
580 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
581
582 //FIXME resample delay
583 if(fabs(delta) > 50){
584 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
585 if(byte_delta < 0){
586 byte_delta= FFMAX(byte_delta, -size);
587 size += byte_delta;
588 buf -= byte_delta;
589 if(verbose > 2)
590 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
591 if(!size)
592 return;
593 ist->is_start=0;
594 }else{
595 static uint8_t *input_tmp= NULL;
596 input_tmp= av_realloc(input_tmp, byte_delta + size);
597
598 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
599 ist->is_start=0;
600 else
601 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
602
603 memset(input_tmp, 0, byte_delta);
604 memcpy(input_tmp + byte_delta, buf, size);
605 buf= input_tmp;
606 size += byte_delta;
607 if(verbose > 2)
608 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
609 }
610 }else if(audio_sync_method>1){
611 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
612 assert(ost->audio_resample);
613 if(verbose > 2)
614 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
615 // 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));
616 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
617 }
618 }
619 }else
620 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
621 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
622
623 if (ost->audio_resample) {
624 buftmp = audio_buf;
625 size_out = audio_resample(ost->resample,
626 (short *)buftmp, (short *)buf,
627 size / (ist->st->codec->channels * isize));
628 size_out = size_out * enc->channels * osize;
629 } else {
630 buftmp = buf;
631 size_out = size;
632 }
633
634 if (dec->sample_fmt!=enc->sample_fmt) {
635 const void *ibuf[6]= {buftmp};
636 void *obuf[6]= {audio_out2};
637 int istride[6]= {isize};
638 int ostride[6]= {osize};
639 int len= size_out/istride[0];
640 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
641 printf("av_audio_convert() failed\n");
642 return;
643 }
644 buftmp = audio_out2;
645 size_out = len*osize;
646 }
647
648 /* now encode as many frames as possible */
649 if (enc->frame_size > 1) {
650 /* output resampled raw samples */
651 if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
652 fprintf(stderr, "av_fifo_realloc2() failed\n");
653 av_exit(1);
654 }
655 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
656
657 frame_bytes = enc->frame_size * osize * enc->channels;
658
659 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
660 AVPacket pkt;
661 av_init_packet(&pkt);
662
663 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
664
665 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
666
667 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
668 (short *)audio_buf);
669 audio_size += ret;
670 pkt.stream_index= ost->index;
671 pkt.data= audio_out;
672 pkt.size= ret;
673 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
674 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
675 pkt.flags |= PKT_FLAG_KEY;
676 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
677
678 ost->sync_opts += enc->frame_size;
679 }
680 } else {
681 AVPacket pkt;
682 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
683 av_init_packet(&pkt);
684
685 ost->sync_opts += size_out / (osize * enc->channels);
686
687 /* output a pcm frame */
688 /* determine the size of the coded buffer */
689 size_out /= osize;
690 if (coded_bps)
691 size_out *= coded_bps;
692
693 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
694 ret = avcodec_encode_audio(enc, audio_out, size_out,
695 (short *)buftmp);
696 audio_size += ret;
697 pkt.stream_index= ost->index;
698 pkt.data= audio_out;
699 pkt.size= ret;
700 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
701 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
702 pkt.flags |= PKT_FLAG_KEY;
703 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
704 }
705 }
706
707 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
708 {
709 AVCodecContext *dec;
710 AVPicture *picture2;
711 AVPicture picture_tmp;
712 uint8_t *buf = 0;
713
714 dec = ist->st->codec;
715
716 /* deinterlace : must be done before any resize */
717 if (do_deinterlace || using_vhook) {
718 int size;
719
720 /* create temporary picture */
721 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
722 buf = av_malloc(size);
723 if (!buf)
724 return;
725
726 picture2 = &picture_tmp;
727 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
728
729 if (do_deinterlace){
730 if(avpicture_deinterlace(picture2, picture,
731 dec->pix_fmt, dec->width, dec->height) < 0) {
732 /* if error, do not deinterlace */
733 av_free(buf);
734 buf = NULL;
735 picture2 = picture;
736 }
737 } else {
738 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
739 }
740 } else {
741 picture2 = picture;
742 }
743
744 if (ENABLE_VHOOK)
745 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
746 1000000 * ist->pts / AV_TIME_BASE);
747
748 if (picture != picture2)
749 *picture = *picture2;
750 *bufp = buf;
751 }
752
753 /* we begin to correct av delay at this threshold */
754 #define AV_DELAY_MAX 0.100
755
756 static void do_subtitle_out(AVFormatContext *s,
757 AVOutputStream *ost,
758 AVInputStream *ist,
759 AVSubtitle *sub,
760 int64_t pts)
761 {
762 static uint8_t *subtitle_out = NULL;
763 int subtitle_out_max_size = 65536;
764 int subtitle_out_size, nb, i;
765 AVCodecContext *enc;
766 AVPacket pkt;
767
768 if (pts == AV_NOPTS_VALUE) {
769 fprintf(stderr, "Subtitle packets must have a pts\n");
770 return;
771 }
772
773 enc = ost->st->codec;
774
775 if (!subtitle_out) {
776 subtitle_out = av_malloc(subtitle_out_max_size);
777 }
778
779 /* Note: DVB subtitle need one packet to draw them and one other
780 packet to clear them */
781 /* XXX: signal it in the codec context ? */
782 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
783 nb = 2;
784 else
785 nb = 1;
786
787 for(i = 0; i < nb; i++) {
788 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
789 subtitle_out_max_size, sub);
790
791 av_init_packet(&pkt);
792 pkt.stream_index = ost->index;
793 pkt.data = subtitle_out;
794 pkt.size = subtitle_out_size;
795 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
796 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
797 /* XXX: the pts correction is handled here. Maybe handling
798 it in the codec would be better */
799 if (i == 0)
800 pkt.pts += 90 * sub->start_display_time;
801 else
802 pkt.pts += 90 * sub->end_display_time;
803 }
804 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
805 }
806 }
807
808 static int bit_buffer_size= 1024*256;
809 static uint8_t *bit_buffer= NULL;
810
811 static void do_video_out(AVFormatContext *s,
812 AVOutputStream *ost,
813 AVInputStream *ist,
814 AVFrame *in_picture,
815 int *frame_size)
816 {
817 int nb_frames, i, ret;
818 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
819 AVFrame picture_crop_temp, picture_pad_temp;
820 AVCodecContext *enc, *dec;
821
822 avcodec_get_frame_defaults(&picture_crop_temp);
823 avcodec_get_frame_defaults(&picture_pad_temp);
824
825 enc = ost->st->codec;
826 dec = ist->st->codec;
827
828 /* by default, we output a single frame */
829 nb_frames = 1;
830
831 *frame_size = 0;
832
833 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
834 double vdelta;
835 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
836 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
837 if (vdelta < -1.1)
838 nb_frames = 0;
839 else if (video_sync_method == 2)
840 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
841 else if (vdelta > 1.1)
842 nb_frames = lrintf(vdelta);
843 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);
844 if (nb_frames == 0){
845 ++nb_frames_drop;
846 if (verbose>2)
847 fprintf(stderr, "*** drop!\n");
848 }else if (nb_frames > 1) {
849 nb_frames_dup += nb_frames;
850 if (verbose>2)
851 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
852 }
853 }else
854 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
855
856 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
857 if (nb_frames <= 0)
858 return;
859
860 if (ost->video_crop) {
861 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
862 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
863 return;
864 }
865 formatted_picture = &picture_crop_temp;
866 } else {
867 formatted_picture = in_picture;
868 }
869
870 final_picture = formatted_picture;
871 padding_src = formatted_picture;
872 resampling_dst = &ost->pict_tmp;
873 if (ost->video_pad) {
874 final_picture = &ost->pict_tmp;
875 if (ost->video_resample) {
876 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
877 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
878 return;
879 }
880 resampling_dst = &picture_pad_temp;
881 }
882 }
883
884 if (ost->video_resample) {
885 padding_src = NULL;
886 final_picture = &ost->pict_tmp;
887 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
888 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
889 }
890
891 if (ost->video_pad) {
892 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
893 enc->height, enc->width, enc->pix_fmt,
894 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
895 }
896
897 /* duplicates frame if needed */
898 for(i=0;i<nb_frames;i++) {
899 AVPacket pkt;
900 av_init_packet(&pkt);
901 pkt.stream_index= ost->index;
902
903 if (s->oformat->flags & AVFMT_RAWPICTURE) {
904 /* raw pictures are written as AVPicture structure to
905 avoid any copies. We support temorarily the older
906 method. */
907 AVFrame* old_frame = enc->coded_frame;
908 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
909 pkt.data= (uint8_t *)final_picture;
910 pkt.size= sizeof(AVPicture);
911 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
912 pkt.flags |= PKT_FLAG_KEY;
913
914 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
915 enc->coded_frame = old_frame;
916 } else {
917 AVFrame big_picture;
918
919 big_picture= *final_picture;
920 /* better than nothing: use input picture interlaced
921 settings */
922 big_picture.interlaced_frame = in_picture->interlaced_frame;
923 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
924 if(top_field_first == -1)
925 big_picture.top_field_first = in_picture->top_field_first;
926 else
927 big_picture.top_field_first = top_field_first;
928 }
929
930 /* handles sameq here. This is not correct because it may
931 not be a global option */
932 if (same_quality) {
933 big_picture.quality = ist->st->quality;
934 }else
935 big_picture.quality = ost->st->quality;
936 if(!me_threshold)
937 big_picture.pict_type = 0;
938 // big_picture.pts = AV_NOPTS_VALUE;
939 big_picture.pts= ost->sync_opts;
940 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
941 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
942 ret = avcodec_encode_video(enc,
943 bit_buffer, bit_buffer_size,
944 &big_picture);
945 if (ret == -1) {
946 fprintf(stderr, "Video encoding failed\n");
947 av_exit(1);
948 }
949 //enc->frame_number = enc->real_pict_num;
950 if(ret>0){
951 pkt.data= bit_buffer;
952 pkt.size= ret;
953 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
954 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
955 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
956 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
957 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
958
959 if(enc->coded_frame->key_frame)
960 pkt.flags |= PKT_FLAG_KEY;
961 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
962 *frame_size = ret;
963 video_size += ret;
964 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
965 // enc->frame_number-1, enc->real_pict_num, ret,
966 // enc->pict_type);
967 /* if two pass, output log */
968 if (ost->logfile && enc->stats_out) {
969 fprintf(ost->logfile, "%s", enc->stats_out);
970 }
971 }
972 }
973 ost->sync_opts++;
974 ost->frame_number++;
975 }
976 }
977
978 static double psnr(double d){
979 return -10.0*log(d)/log(10.0);
980 }
981
982 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
983 int frame_size)
984 {
985 AVCodecContext *enc;
986 int frame_number;
987 double ti1, bitrate, avg_bitrate;
988
989 /* this is executed just the first time do_video_stats is called */
990 if (!vstats_file) {
991 vstats_file = fopen(vstats_filename, "w");
992 if (!vstats_file) {
993 perror("fopen");
994 av_exit(1);
995 }
996 }
997
998 enc = ost->st->codec;
999 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1000 frame_number = ost->frame_number;
1001 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1002 if (enc->flags&CODEC_FLAG_PSNR)
1003 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1004
1005 fprintf(vstats_file,"f_size= %6d ", frame_size);
1006 /* compute pts value */
1007 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1008 if (ti1 < 0.01)
1009 ti1 = 0.01;
1010
1011 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1012 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1013 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1014 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1015 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1016 }
1017 }
1018
1019 static void print_report(AVFormatContext **output_files,
1020 AVOutputStream **ost_table, int nb_ostreams,
1021 int is_last_report)
1022 {
1023 char buf[1024];
1024 AVOutputStream *ost;
1025 AVFormatContext *oc, *os;
1026 int64_t total_size;
1027 AVCodecContext *enc;
1028 int frame_number, vid, i;
1029 double bitrate, ti1, pts;
1030 static int64_t last_time = -1;
1031 static int qp_histogram[52];
1032
1033 if (!is_last_report) {
1034 int64_t cur_time;
1035 /* display the report every 0.5 seconds */
1036 cur_time = av_gettime();
1037 if (last_time == -1) {
1038 last_time = cur_time;
1039 return;
1040 }
1041 if ((cur_time - last_time) < 500000)
1042 return;
1043 last_time = cur_time;
1044 }
1045
1046
1047 oc = output_files[0];
1048
1049 total_size = url_fsize(oc->pb);
1050 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1051 total_size= url_ftell(oc->pb);
1052
1053 buf[0] = '\0';
1054 ti1 = 1e10;
1055 vid = 0;
1056 for(i=0;i<nb_ostreams;i++) {
1057 ost = ost_table[i];
1058 os = output_files[ost->file_index];
1059 enc = ost->st->codec;
1060 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1061 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1062 !ost->st->stream_copy ?
1063 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1064 }
1065 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1066 float t = (av_gettime()-timer_start) / 1000000.0;
1067
1068 frame_number = ost->frame_number;
1069 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1070 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1071 !ost->st->stream_copy ?
1072 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1073 if(is_last_report)
1074 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1075 if(qp_hist){
1076 int j;
1077 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1078 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1079 qp_histogram[qp]++;
1080 for(j=0; j<32; j++)
1081 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1082 }
1083 if (enc->flags&CODEC_FLAG_PSNR){
1084 int j;
1085 double error, error_sum=0;
1086 double scale, scale_sum=0;
1087 char type[3]= {'Y','U','V'};
1088 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1089 for(j=0; j<3; j++){
1090 if(is_last_report){
1091 error= enc->error[j];
1092 scale= enc->width*enc->height*255.0*255.0*frame_number;
1093 }else{
1094 error= enc->coded_frame->error[j];
1095 scale= enc->width*enc->height*255.0*255.0;
1096 }
1097 if(j) scale/=4;
1098 error_sum += error;
1099 scale_sum += scale;
1100 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1101 }
1102 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1103 }
1104 vid = 1;
1105 }
1106 /* compute min output value */
1107 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1108 if ((pts < ti1) && (pts > 0))
1109 ti1 = pts;
1110 }
1111 if (ti1 < 0.01)
1112 ti1 = 0.01;
1113
1114 if (verbose || is_last_report) {
1115 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1116
1117 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1118 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1119 (double)total_size / 1024, ti1, bitrate);
1120
1121 if (verbose > 1)
1122 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1123 nb_frames_dup, nb_frames_drop);
1124
1125 if (verbose >= 0)
1126 fprintf(stderr, "%s \r", buf);
1127
1128 fflush(stderr);
1129 }
1130
1131 if (is_last_report && verbose >= 0){
1132 int64_t raw= audio_size + video_size + extra_size;
1133 fprintf(stderr, "\n");
1134 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1135 video_size/1024.0,
1136 audio_size/1024.0,
1137 extra_size/1024.0,
1138 100.0*(total_size - raw)/raw
1139 );
1140 }
1141 }
1142
1143 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1144 static int output_packet(AVInputStream *ist, int ist_index,
1145 AVOutputStream **ost_table, int nb_ostreams,
1146 const AVPacket *pkt)
1147 {
1148 AVFormatContext *os;
1149 AVOutputStream *ost;
1150 uint8_t *ptr;
1151 int len, ret, i;
1152 uint8_t *data_buf;
1153 int data_size, got_picture;
1154 AVFrame picture;
1155 void *buffer_to_free;
1156 static unsigned int samples_size= 0;
1157 static short *samples= NULL;
1158 AVSubtitle subtitle, *subtitle_to_free;
1159 int got_subtitle;
1160
1161 if(ist->next_pts == AV_NOPTS_VALUE)
1162 ist->next_pts= ist->pts;
1163
1164 if (pkt == NULL) {
1165 /* EOF handling */
1166 ptr = NULL;
1167 len = 0;
1168 goto handle_eof;
1169 }
1170
1171 if(pkt->dts != AV_NOPTS_VALUE)
1172 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1173
1174 len = pkt->size;
1175 ptr = pkt->data;
1176
1177 //while we have more to decode or while the decoder did output something on EOF
1178 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1179 handle_eof:
1180 ist->pts= ist->next_pts;
1181
1182 if(len && len != pkt->size && verbose>0)
1183 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1184
1185 /* decode the packet if needed */
1186 data_buf = NULL; /* fail safe */
1187 data_size = 0;
1188 subtitle_to_free = NULL;
1189 if (ist->decoding_needed) {
1190 switch(ist->st->codec->codec_type) {
1191 case CODEC_TYPE_AUDIO:{
1192 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1193 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1194 av_free(samples);
1195 samples= av_malloc(samples_size);
1196 }
1197 data_size= samples_size;
1198 /* XXX: could avoid copy if PCM 16 bits with same
1199 endianness as CPU */
1200 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1201 ptr, len);
1202 if (ret < 0)
1203 goto fail_decode;
1204 ptr += ret;
1205 len -= ret;
1206 /* Some bug in mpeg audio decoder gives */
1207 /* data_size < 0, it seems they are overflows */
1208 if (data_size <= 0) {
1209 /* no audio frame */
1210 continue;
1211 }
1212 data_buf = (uint8_t *)samples;
1213 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1214 (ist->st->codec->sample_rate * ist->st->codec->channels);
1215 break;}
1216 case CODEC_TYPE_VIDEO:
1217 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1218 /* XXX: allocate picture correctly */
1219 avcodec_get_frame_defaults(&picture);
1220
1221 ret = avcodec_decode_video(ist->st->codec,
1222 &picture, &got_picture, ptr, len);
1223 ist->st->quality= picture.quality;
1224 if (ret < 0)
1225 goto fail_decode;
1226 if (!got_picture) {
1227 /* no picture yet */
1228 goto discard_packet;
1229 }
1230 if (ist->st->codec->time_base.num != 0) {
1231 ist->next_pts += ((int64_t)AV_TIME_BASE *
1232 ist->st->codec->time_base.num) /
1233 ist->st->codec->time_base.den;
1234 }
1235 len = 0;
1236 break;
1237 case CODEC_TYPE_SUBTITLE:
1238 ret = avcodec_decode_subtitle(ist->st->codec,
1239 &subtitle, &got_subtitle, ptr, len);
1240 if (ret < 0)
1241 goto fail_decode;
1242 if (!got_subtitle) {
1243 goto discard_packet;
1244 }
1245 subtitle_to_free = &subtitle;
1246 len = 0;
1247 break;
1248 default:
1249 goto fail_decode;
1250 }
1251 } else {
1252 switch(ist->st->codec->codec_type) {
1253 case CODEC_TYPE_AUDIO:
1254 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1255 ist->st->codec->sample_rate;
1256 break;
1257 case CODEC_TYPE_VIDEO:
1258 if (ist->st->codec->time_base.num != 0) {
1259 ist->next_pts += ((int64_t)AV_TIME_BASE *
1260 ist->st->codec->time_base.num) /
1261 ist->st->codec->time_base.den;
1262 }
1263 break;
1264 }
1265 data_buf = ptr;
1266 data_size = len;
1267 ret = len;
1268 len = 0;
1269 }
1270
1271 buffer_to_free = NULL;
1272 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1273 pre_process_video_frame(ist, (AVPicture *)&picture,
1274 &buffer_to_free);
1275 }
1276
1277 // preprocess audio (volume)
1278 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1279 if (audio_volume != 256) {
1280 short *volp;
1281 volp = samples;
1282 for(i=0;i<(data_size / sizeof(short));i++) {
1283 int v = ((*volp) * audio_volume + 128) >> 8;
1284 if (v < -32768) v = -32768;
1285 if (v > 32767) v = 32767;
1286 *volp++ = v;
1287 }
1288 }
1289 }
1290
1291 /* frame rate emulation */
1292 if (ist->st->codec->rate_emu) {
1293 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1294 int64_t now = av_gettime() - ist->start;
1295 if (pts > now)
1296 usleep(pts - now);
1297
1298 ist->frame++;
1299 }
1300
1301 #if 0
1302 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1303 is the one of the next displayed one */
1304 /* XXX: add mpeg4 too ? */
1305 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1306 if (ist->st->codec->pict_type != B_TYPE) {
1307 int64_t tmp;
1308 tmp = ist->last_ip_pts;
1309 ist->last_ip_pts = ist->frac_pts.val;
1310 ist->frac_pts.val = tmp;
1311 }
1312 }
1313 #endif
1314 /* if output time reached then transcode raw format,
1315 encode packets and output them */
1316 if (start_time == 0 || ist->pts >= start_time)
1317 for(i=0;i<nb_ostreams;i++) {
1318 int frame_size;
1319
1320 ost = ost_table[i];
1321 if (ost->source_index == ist_index) {
1322 os = output_files[ost->file_index];
1323
1324 #if 0
1325 printf("%d: got pts=%0.3f %0.3f\n", i,
1326 (double)pkt->pts / AV_TIME_BASE,
1327 ((double)ist->pts / AV_TIME_BASE) -
1328 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1329 #endif
1330 /* set the input output pts pairs */
1331 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1332
1333 if (ost->encoding_needed) {
1334 switch(ost->st->codec->codec_type) {
1335 case CODEC_TYPE_AUDIO:
1336 do_audio_out(os, ost, ist, data_buf, data_size);
1337 break;
1338 case CODEC_TYPE_VIDEO:
1339 do_video_out(os, ost, ist, &picture, &frame_size);
1340 if (vstats_filename && frame_size)
1341 do_video_stats(os, ost, frame_size);
1342 break;
1343 case CODEC_TYPE_SUBTITLE:
1344 do_subtitle_out(os, ost, ist, &subtitle,
1345 pkt->pts);
1346 break;
1347 default:
1348 abort();
1349 }
1350 } else {
1351 AVFrame avframe; //FIXME/XXX remove this
1352 AVPacket opkt;
1353 av_init_packet(&opkt);
1354
1355 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1356 continue;
1357
1358 /* no reencoding needed : output the packet directly */
1359 /* force the input stream PTS */
1360
1361 avcodec_get_frame_defaults(&avframe);
1362 ost->st->codec->coded_frame= &avframe;
1363 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1364
1365 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1366 audio_size += data_size;
1367 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1368 video_size += data_size;
1369 ost->sync_opts++;
1370 }
1371
1372 opkt.stream_index= ost->index;
1373 if(pkt->pts != AV_NOPTS_VALUE)
1374 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1375 else
1376 opkt.pts= AV_NOPTS_VALUE;
1377
1378 if (pkt->dts == AV_NOPTS_VALUE)
1379 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1380 else
1381 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1382
1383 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1384 opkt.flags= pkt->flags;
1385
1386 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1387 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1388 opkt.destruct= av_destruct_packet;
1389
1390 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1391 ost->st->codec->frame_number++;
1392 ost->frame_number++;
1393 av_free_packet(&opkt);
1394 }
1395 }
1396 }
1397 av_free(buffer_to_free);
1398 /* XXX: allocate the subtitles in the codec ? */
1399 if (subtitle_to_free) {
1400 if (subtitle_to_free->rects != NULL) {
1401 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1402 av_free(subtitle_to_free->rects[i].bitmap);
1403 av_free(subtitle_to_free->rects[i].rgba_palette);
1404 }
1405 av_freep(&subtitle_to_free->rects);
1406 }
1407 subtitle_to_free->num_rects = 0;
1408 subtitle_to_free = NULL;
1409 }
1410 }
1411 discard_packet:
1412 if (pkt == NULL) {
1413 /* EOF handling */
1414
1415 for(i=0;i<nb_ostreams;i++) {
1416 ost = ost_table[i];
1417 if (ost->source_index == ist_index) {
1418 AVCodecContext *enc= ost->st->codec;
1419 os = output_files[ost->file_index];
1420
1421 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1422 continue;
1423 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1424 continue;
1425
1426 if (ost->encoding_needed) {
1427 for(;;) {
1428 AVPacket pkt;
1429 int fifo_bytes;
1430 av_init_packet(&pkt);
1431 pkt.stream_index= ost->index;
1432
1433 switch(ost->st->codec->codec_type) {
1434 case CODEC_TYPE_AUDIO:
1435 fifo_bytes = av_fifo_size(&ost->fifo);
1436 ret = 0;
1437 /* encode any samples remaining in fifo */
1438 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1439 int fs_tmp = enc->frame_size;
1440 enc->frame_size = fifo_bytes / (2 * enc->channels);
1441 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1442 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1443 enc->frame_size = fs_tmp;
1444 }
1445 if(ret <= 0) {
1446 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1447 }
1448 audio_size += ret;
1449 pkt.flags |= PKT_FLAG_KEY;
1450 break;
1451 case CODEC_TYPE_VIDEO:
1452 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1453 video_size += ret;
1454 if(enc->coded_frame && enc->coded_frame->key_frame)
1455 pkt.flags |= PKT_FLAG_KEY;
1456 if (ost->logfile && enc->stats_out) {
1457 fprintf(ost->logfile, "%s", enc->stats_out);
1458 }
1459 break;
1460 default:
1461 ret=-1;
1462 }
1463
1464 if(ret<=0)
1465 break;
1466 pkt.data= bit_buffer;
1467 pkt.size= ret;
1468 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1469 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1470 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1471 }
1472 }
1473 }
1474 }
1475 }
1476
1477 return 0;
1478 fail_decode:
1479 return -1;
1480 }
1481
1482 static void print_sdp(AVFormatContext **avc, int n)
1483 {
1484 char sdp[2048];
1485
1486 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1487 printf("SDP:\n%s\n", sdp);
1488 }
1489
1490 static int stream_index_from_inputs(AVFormatContext **input_files,
1491 int nb_input_files,
1492 AVInputFile *file_table,
1493 AVInputStream **ist_table,
1494 enum CodecType type,
1495 int programid)
1496 {
1497 int p, q, z;
1498 for(z=0; z<nb_input_files; z++) {
1499 AVFormatContext *ic = input_files[z];
1500 for(p=0; p<ic->nb_programs; p++) {
1501 AVProgram *program = ic->programs[p];
1502 if(program->id != programid)
1503 continue;
1504 for(q=0; q<program->nb_stream_indexes; q++) {
1505 int sidx = program->stream_index[q];
1506 int ris = file_table[z].ist_index + sidx;
1507 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1508 return ris;
1509 }
1510 }
1511 }
1512
1513 return -1;
1514 }
1515
1516 /*
1517 * The following code is the main loop of the file converter
1518 */
1519 static int av_encode(AVFormatContext **output_files,
1520 int nb_output_files,
1521 AVFormatContext **input_files,
1522 int nb_input_files,
1523 AVStreamMap *stream_maps, int nb_stream_maps)
1524 {
1525 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1526 AVFormatContext *is, *os;
1527 AVCodecContext *codec, *icodec;
1528 AVOutputStream *ost, **ost_table = NULL;
1529 AVInputStream *ist, **ist_table = NULL;
1530 AVInputFile *file_table;
1531 int key;
1532 int want_sdp = 1;
1533
1534 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1535 if (!file_table)
1536 goto fail;
1537
1538 /* input stream init */
1539 j = 0;
1540 for(i=0;i<nb_input_files;i++) {
1541 is = input_files[i];
1542 file_table[i].ist_index = j;
1543 file_table[i].nb_streams = is->nb_streams;
1544 j += is->nb_streams;
1545 }
1546 nb_istreams = j;
1547
1548 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1549 if (!ist_table)
1550 goto fail;
1551
1552 for(i=0;i<nb_istreams;i++) {
1553 ist = av_mallocz(sizeof(AVInputStream));
1554 if (!ist)
1555 goto fail;
1556 ist_table[i] = ist;
1557 }
1558 j = 0;
1559 for(i=0;i<nb_input_files;i++) {
1560 is = input_files[i];
1561 for(k=0;k<is->nb_streams;k++) {
1562 ist = ist_table[j++];
1563 ist->st = is->streams[k];
1564 ist->file_index = i;
1565 ist->index = k;
1566 ist->discard = 1; /* the stream is discarded by default
1567 (changed later) */
1568
1569 if (ist->st->codec->rate_emu) {
1570 ist->start = av_gettime();
1571 ist->frame = 0;
1572 }
1573 }
1574 }
1575
1576 /* output stream init */
1577 nb_ostreams = 0;
1578 for(i=0;i<nb_output_files;i++) {
1579 os = output_files[i];
1580 if (!os->nb_streams) {
1581 fprintf(stderr, "Output file does not contain any stream\n");
1582 av_exit(1);
1583 }
1584 nb_ostreams += os->nb_streams;
1585 }
1586 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1587 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1588 av_exit(1);
1589 }
1590
1591 /* Sanity check the mapping args -- do the input files & streams exist? */
1592 for(i=0;i<nb_stream_maps;i++) {
1593 int fi = stream_maps[i].file_index;
1594 int si = stream_maps[i].stream_index;
1595
1596 if (fi < 0 || fi > nb_input_files - 1 ||
1597 si < 0 || si > file_table[fi].nb_streams - 1) {
1598 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1599 av_exit(1);
1600 }
1601 fi = stream_maps[i].sync_file_index;
1602 si = stream_maps[i].sync_stream_index;
1603 if (fi < 0 || fi > nb_input_files - 1 ||
1604 si < 0 || si > file_table[fi].nb_streams - 1) {
1605 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1606 av_exit(1);
1607 }
1608 }
1609
1610 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1611 if (!ost_table)
1612 goto fail;
1613 for(i=0;i<nb_ostreams;i++) {
1614 ost = av_mallocz(sizeof(AVOutputStream));
1615 if (!ost)
1616 goto fail;
1617 ost_table[i] = ost;
1618 }
1619
1620 n = 0;
1621 for(k=0;k<nb_output_files;k++) {
1622 os = output_files[k];
1623 for(i=0;i<os->nb_streams;i++,n++) {
1624 int found;
1625 ost = ost_table[n];
1626 ost->file_index = k;
1627 ost->index = i;
1628 ost->st = os->streams[i];
1629 if (nb_stream_maps > 0) {
1630 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1631 stream_maps[n].stream_index;
1632
1633 /* Sanity check that the stream types match */
1634 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1635 int i= ost->file_index;
1636 dump_format(output_files[i], i, output_files[i]->filename, 1);
1637 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1638 stream_maps[n].file_index, stream_maps[n].stream_index,
1639 ost->file_index, ost->index);
1640 av_exit(1);
1641 }
1642
1643 } else {
1644 if(opt_programid) {
1645 found = 0;
1646 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1647 if(j != -1) {
1648 ost->source_index = j;
1649 found = 1;
1650 }
1651 } else {
1652 /* get corresponding input stream index : we select the first one with the right type */
1653 found = 0;
1654 for(j=0;j<nb_istreams;j++) {
1655 ist = ist_table[j];
1656 if (ist->discard &&
1657 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1658 ost->source_index = j;
1659 found = 1;
1660 break;
1661 }
1662 }
1663 }
1664
1665 if (!found) {
1666 if(! opt_programid) {
1667 /* try again and reuse existing stream */
1668 for(j=0;j<nb_istreams;j++) {
1669 ist = ist_table[j];
1670 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1671 ost->source_index = j;
1672 found = 1;
1673 }
1674 }
1675 }
1676 if (!found) {
1677 int i= ost->file_index;
1678 dump_format(output_files[i], i, output_files[i]->filename, 1);
1679 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1680 ost->file_index, ost->index);
1681 av_exit(1);
1682 }
1683 }
1684 }
1685 ist = ist_table[ost->source_index];
1686 ist->discard = 0;
1687 ost->sync_ist = (nb_stream_maps > 0) ?
1688 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1689 stream_maps[n].sync_stream_index] : ist;
1690 }
1691 }
1692
1693 /* for each output stream, we compute the right encoding parameters */
1694 for(i=0;i<nb_ostreams;i++) {
1695 ost = ost_table[i];
1696 os = output_files[ost->file_index];
1697 ist = ist_table[ost->source_index];
1698
1699 codec = ost->st->codec;
1700 icodec = ist->st->codec;
1701
1702 if (!ost->st->language[0])
1703 av_strlcpy(ost->st->language, ist->st->language,
1704 sizeof(ost->st->language));
1705
1706 ost->st->disposition = ist->st->disposition;
1707
1708 if (ost->st->stream_copy) {
1709 /* if stream_copy is selected, no need to decode or encode */
1710 codec->codec_id = icodec->codec_id;
1711 codec->codec_type = icodec->codec_type;
1712
1713 if(!codec->codec_tag){
1714 if( !os->oformat->codec_tag
1715 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1716 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1717 codec->codec_tag = icodec->codec_tag;
1718 }
1719
1720 codec->bit_rate = icodec->bit_rate;
1721 codec->extradata= icodec->extradata;
1722 codec->extradata_size= icodec->extradata_size;
1723 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1724 codec->time_base = icodec->time_base;
1725 else
1726 codec->time_base = ist->st->time_base;
1727 switch(codec->codec_type) {
1728 case CODEC_TYPE_AUDIO:
1729 if(audio_volume != 256) {
1730 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1731 av_exit(1);
1732 }
1733 codec->sample_rate = icodec->sample_rate;
1734 codec->channels = icodec->channels;
1735 codec->frame_size = icodec->frame_size;
1736 codec->block_align= icodec->block_align;
1737 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1738 codec->block_align= 0;
1739 if(codec->codec_id == CODEC_ID_AC3)
1740 codec->block_align= 0;
1741 break;
1742 case CODEC_TYPE_VIDEO:
1743 if(using_vhook) {
1744 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1745 av_exit(1);
1746 }
1747 codec->pix_fmt = icodec->pix_fmt;
1748 codec->width = icodec->width;
1749 codec->height = icodec->height;
1750 codec->has_b_frames = icodec->has_b_frames;
1751 break;
1752 case CODEC_TYPE_SUBTITLE:
1753 break;
1754 default:
1755 abort();
1756 }
1757 } else {
1758 switch(codec->codec_type) {
1759 case CODEC_TYPE_AUDIO:
1760 if (av_fifo_init(&ost->fifo, 1024))
1761 goto fail;
1762 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1763 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1764 icodec->request_channels = codec->channels;
1765 ist->decoding_needed = 1;
1766 ost->encoding_needed = 1;
1767 break;
1768 case CODEC_TYPE_VIDEO:
1769 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1770 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1771 ost->video_resample = ((codec->width != icodec->width -
1772 (frame_leftBand + frame_rightBand) +
1773 (frame_padleft + frame_padright)) ||
1774 (codec->height != icodec->height -
1775 (frame_topBand + frame_bottomBand) +
1776 (frame_padtop + frame_padbottom)) ||
1777 (codec->pix_fmt != icodec->pix_fmt));
1778 if (ost->video_crop) {
1779 ost->topBand = frame_topBand;
1780 ost->leftBand = frame_leftBand;
1781 }
1782 if (ost->video_pad) {
1783 ost->padtop = frame_padtop;
1784 ost->padleft = frame_padleft;
1785 ost->padbottom = frame_padbottom;
1786 ost->padright = frame_padright;
1787 if (!ost->video_resample) {
1788 avcodec_get_frame_defaults(&ost->pict_tmp);
1789 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1790 codec->width, codec->height))
1791 goto fail;
1792 }
1793 }
1794 if (ost->video_resample) {
1795 avcodec_get_frame_defaults(&ost->pict_tmp);
1796 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1797 codec->width, codec->height)) {
1798 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1799 av_exit(1);
1800 }
1801 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1802 ost->img_resample_ctx = sws_getContext(
1803 icodec->width - (frame_leftBand + frame_rightBand),
1804 icodec->height - (frame_topBand + frame_bottomBand),
1805 icodec->pix_fmt,
1806 codec->width - (frame_padleft + frame_padright),
1807 codec->height - (frame_padtop + frame_padbottom),
1808 codec->pix_fmt,
1809 sws_flags, NULL, NULL, NULL);
1810 if (ost->img_resample_ctx == NULL) {
1811 fprintf(stderr, "Cannot get resampling context\n");
1812 av_exit(1);
1813 }
1814 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1815 }
1816 ost->encoding_needed = 1;
1817 ist->decoding_needed = 1;
1818 break;
1819 case CODEC_TYPE_SUBTITLE:
1820 ost->encoding_needed = 1;
1821 ist->decoding_needed = 1;
1822 break;
1823 default:
1824 abort();
1825 break;
1826 }
1827 /* two pass mode */
1828 if (ost->encoding_needed &&
1829 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1830 char logfilename[1024];
1831 FILE *f;
1832 int size;
1833 char *logbuffer;
1834
1835 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1836 pass_logfilename ?
1837 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1838 if (codec->flags & CODEC_FLAG_PASS1) {
1839 f = fopen(logfilename, "w");
1840 if (!f) {
1841 perror(logfilename);
1842 av_exit(1);
1843 }
1844 ost->logfile = f;
1845 } else {
1846 /* read the log file */
1847 f = fopen(logfilename, "r");
1848 if (!f) {
1849 perror(logfilename);
1850 av_exit(1);
1851 }
1852 fseek(f, 0, SEEK_END);
1853 size = ftell(f);
1854 fseek(f, 0, SEEK_SET);
1855 logbuffer = av_malloc(size + 1);
1856 if (!logbuffer) {
1857 fprintf(stderr, "Could not allocate log buffer\n");
1858 av_exit(1);
1859 }
1860 size = fread(logbuffer, 1, size, f);
1861 fclose(f);
1862 logbuffer[size] = '\0';
1863 codec->stats_in = logbuffer;
1864 }
1865 }
1866 }
1867 if(codec->codec_type == CODEC_TYPE_VIDEO){
1868 int size= codec->width * codec->height;
1869 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1870 }
1871 }
1872
1873 if (!bit_buffer)
1874 bit_buffer = av_malloc(bit_buffer_size);
1875 if (!bit_buffer)
1876 goto fail;
1877
1878 /* dump the file output parameters - cannot be done before in case
1879 of stream copy */
1880 for(i=0;i<nb_output_files;i++) {
1881 dump_format(output_files[i], i, output_files[i]->filename, 1);
1882 }
1883
1884 /* dump the stream mapping */
1885 if (verbose >= 0) {
1886 fprintf(stderr, "Stream mapping:\n");
1887 for(i=0;i<nb_ostreams;i++) {
1888 ost = ost_table[i];
1889 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1890 ist_table[ost->source_index]->file_index,
1891 ist_table[ost->source_index]->index,
1892 ost->file_index,
1893 ost->index);
1894 if (ost->sync_ist != ist_table[ost->source_index])
1895 fprintf(stderr, " [sync #%d.%d]",
1896 ost->sync_ist->file_index,
1897 ost->sync_ist->index);
1898 fprintf(stderr, "\n");
1899 }
1900 }
1901
1902 /* open each encoder */
1903 for(i=0;i<nb_ostreams;i++) {
1904 ost = ost_table[i];
1905 if (ost->encoding_needed) {
1906 AVCodec *codec;
1907 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1908 if (!codec) {
1909 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1910 ost->file_index, ost->index);
1911 av_exit(1);
1912 }
1913 if (avcodec_open(ost->st->codec, codec) < 0) {
1914 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1915 ost->file_index, ost->index);
1916 av_exit(1);
1917 }
1918 extra_size += ost->st->codec->extradata_size;
1919 }
1920 }
1921
1922 /* open each decoder */
1923 for(i=0;i<nb_istreams;i++) {
1924 ist = ist_table[i];
1925 if (ist->decoding_needed) {
1926 AVCodec *codec;
1927 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1928 if (!codec) {
1929 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1930 ist->st->codec->codec_id, ist->file_index, ist->index);
1931 av_exit(1);
1932 }
1933 if (avcodec_open(ist->st->codec, codec) < 0) {
1934 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1935 ist->file_index, ist->index);
1936 av_exit(1);
1937 }
1938 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1939 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1940 }
1941 }
1942
1943 /* init pts */
1944 for(i=0;i<nb_istreams;i++) {
1945 ist = ist_table[i];
1946 is = input_files[ist->file_index];
1947 ist->pts = 0;
1948 ist->next_pts = AV_NOPTS_VALUE;
1949 ist->is_start = 1;
1950 }
1951
1952 /* set meta data information from input file if required */
1953 for (i=0;i<nb_meta_data_maps;i++) {
1954 AVFormatContext *out_file;
1955 AVFormatContext *in_file;
1956
1957 int out_file_index = meta_data_maps[i].out_file;
1958 int in_file_index = meta_data_maps[i].in_file;
1959 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1960 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1961 ret = AVERROR(EINVAL);
1962 goto fail;
1963 }
1964 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1965 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1966 ret = AVERROR(EINVAL);
1967 goto fail;
1968 }
1969
1970 out_file = output_files[out_file_index];
1971 in_file = input_files[in_file_index];
1972
1973 strcpy(out_file->title, in_file->title);
1974 strcpy(out_file->author, in_file->author);
1975 strcpy(out_file->copyright, in_file->copyright);
1976 strcpy(out_file->comment, in_file->comment);
1977 strcpy(out_file->album, in_file->album);
1978 out_file->year = in_file->year;
1979 out_file->track = in_file->track;
1980 strcpy(out_file->genre, in_file->genre);
1981 }
1982
1983 /* open files and write file headers */
1984 for(i=0;i<nb_output_files;i++) {
1985 os = output_files[i];
1986 if (av_write_header(os) < 0) {
1987 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1988 ret = AVERROR(EINVAL);
1989 goto fail;
1990 }
1991 if (strcmp(output_files[i]->oformat->name, "rtp")) {
1992 want_sdp = 0;
1993 }
1994 }
1995 if (want_sdp) {
1996 print_sdp(output_files, nb_output_files);
1997 }
1998
1999 if (!using_stdin && verbose >= 0) {
2000 fprintf(stderr, "Press [q] to stop encoding\n");
2001 url_set_interrupt_cb(decode_interrupt_cb);
2002 }
2003 term_init();
2004
2005 key = -1;
2006 timer_start = av_gettime();
2007
2008 for(; received_sigterm == 0;) {
2009 int file_index, ist_index;
2010 AVPacket pkt;
2011 double ipts_min;
2012 double opts_min;
2013
2014 redo:
2015 ipts_min= 1e100;
2016 opts_min= 1e100;
2017 /* if 'q' pressed, exits */
2018 if (!using_stdin) {
2019 if (q_pressed)
2020 break;
2021 /* read_key() returns 0 on EOF */
2022 key = read_key();
2023 if (key == 'q')
2024 break;
2025 }
2026
2027 /* select the stream that we must read now by looking at the
2028 smallest output pts */
2029 file_index = -1;
2030 for(i=0;i<nb_ostreams;i++) {
2031 double ipts, opts;
2032 ost = ost_table[i];
2033 os = output_files[ost->file_index];
2034 ist = ist_table[ost->source_index];
2035 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2036 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2037 else
2038 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2039 ipts = (double)ist->pts;
2040 if (!file_table[ist->file_index].eof_reached){
2041 if(ipts < ipts_min) {
2042 ipts_min = ipts;
2043 if(input_sync ) file_index = ist->file_index;
2044 }
2045 if(opts < opts_min) {
2046 opts_min = opts;
2047 if(!input_sync) file_index = ist->file_index;
2048 }
2049 }
2050 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2051 file_index= -1;
2052 break;
2053 }
2054 }
2055 /* if none, if is finished */
2056 if (file_index < 0) {
2057 break;
2058 }
2059
2060 /* finish if recording time exhausted */
2061 if (opts_min >= (recording_time / 1000000.0))
2062 break;
2063
2064 /* finish if limit size exhausted */
2065 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2066 break;
2067
2068 /* read a frame from it and output it in the fifo */
2069 is = input_files[file_index];
2070 if (av_read_frame(is, &pkt) < 0) {
2071 file_table[file_index].eof_reached = 1;
2072 if (opt_shortest)
2073 break;
2074 else
2075 continue;
2076 }
2077
2078 if (do_pkt_dump) {
2079 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2080 }
2081 /* the following test is needed in case new streams appear
2082 dynamically in stream : we ignore them */
2083 if (pkt.stream_index >= file_table[file_index].nb_streams)
2084 goto discard_packet;
2085 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2086 ist = ist_table[ist_index];
2087 if (ist->discard)
2088 goto discard_packet;
2089
2090 if (pkt.dts != AV_NOPTS_VALUE)
2091 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2092 if (pkt.pts != AV_NOPTS_VALUE)
2093 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2094
2095 if(input_files_ts_scale[file_index][pkt.stream_index]){
2096 if(pkt.pts != AV_NOPTS_VALUE)
2097 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2098 if(pkt.dts != AV_NOPTS_VALUE)
2099 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2100 }
2101
2102 // 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);
2103 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
2104 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2105 int64_t delta= pkt_dts - ist->next_pts;
2106 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2107 input_files_ts_offset[ist->file_index]-= delta;
2108 if (verbose > 2)
2109 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2110 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2111 if(pkt.pts != AV_NOPTS_VALUE)
2112 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2113 }
2114 }
2115
2116 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2117 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2118
2119 if (verbose >= 0)
2120 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2121 ist->file_index, ist->index);
2122
2123 av_free_packet(&pkt);
2124 goto redo;
2125 }
2126
2127 discard_packet:
2128 av_free_packet(&pkt);
2129
2130 /* dump report by using the output first video and audio streams */
2131 print_report(output_files, ost_table, nb_ostreams, 0);
2132 }
2133
2134 /* at the end of stream, we must flush the decoder buffers */
2135 for(i=0;i<nb_istreams;i++) {
2136 ist = ist_table[i];
2137 if (ist->decoding_needed) {
2138 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2139 }
2140 }
2141
2142 term_exit();
2143
2144 /* write the trailer if needed and close file */
2145 for(i=0;i<nb_output_files;i++) {
2146 os = output_files[i];
2147 av_write_trailer(os);
2148 }
2149
2150 /* dump report by using the first video and audio streams */
2151 print_report(output_files, ost_table, nb_ostreams, 1);
2152
2153 /* close each encoder */
2154 for(i=0;i<nb_ostreams;i++) {
2155 ost = ost_table[i];
2156 if (ost->encoding_needed) {
2157 av_freep(&ost->st->codec->stats_in);
2158 avcodec_close(ost->st->codec);
2159 }
2160 }
2161
2162 /* close each decoder */
2163 for(i=0;i<nb_istreams;i++) {
2164 ist = ist_table[i];
2165 if (ist->decoding_needed) {
2166 avcodec_close(ist->st->codec);
2167 }
2168 }
2169
2170 /* finished ! */
2171
2172 ret = 0;
2173 fail1:
2174 av_freep(&bit_buffer);
2175 av_free(file_table);
2176
2177 if (ist_table) {
2178 for(i=0;i<nb_istreams;i++) {
2179 ist = ist_table[i];
2180 av_free(ist);
2181 }
2182 av_free(ist_table);
2183 }
2184 if (ost_table) {
2185 for(i=0;i<nb_ostreams;i++) {
2186 ost = ost_table[i];
2187 if (ost) {
2188 if (ost->logfile) {
2189 fclose(ost->logfile);
2190 ost->logfile = NULL;
2191 }
2192 av_fifo_free(&ost->fifo); /* works even if fifo is not
2193 initialized but set to zero */
2194 av_free(ost->pict_tmp.data[0]);
2195 if (ost->video_resample)
2196 sws_freeContext(ost->img_resample_ctx);
2197 if (ost->resample)
2198 audio_resample_close(ost->resample);
2199 if (ost->reformat_ctx)
2200 av_audio_convert_free(ost->reformat_ctx);
2201 av_free(ost);
2202 }
2203 }
2204 av_free(ost_table);
2205 }
2206 return ret;
2207 fail:
2208 ret = AVERROR(ENOMEM);
2209 goto fail1;
2210 }
2211
2212 #if 0
2213 int file_read(const char *filename)
2214 {
2215 URLContext *h;
2216 unsigned char buffer[1024];
2217 int len, i;
2218
2219 if (url_open(&h, filename, O_RDONLY) < 0) {
2220 printf("could not open '%s'\n", filename);
2221 return -1;
2222 }
2223 for(;;) {
2224 len = url_read(h, buffer, sizeof(buffer));
2225 if (len <= 0)
2226 break;
2227 for(i=0;i<len;i++) putchar(buffer[i]);
2228 }
2229 url_close(h);
2230 return 0;
2231 }
2232 #endif
2233
2234 static void opt_format(const char *arg)
2235 {
2236 /* compatibility stuff for pgmyuv */
2237 if (!strcmp(arg, "pgmyuv")) {
2238 pgmyuv_compatibility_hack=1;
2239 // opt_image_format(arg);
2240 arg = "image2";
2241 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2242 }
2243
2244 file_iformat = av_find_input_format(arg);
2245 file_oformat = guess_format(arg, NULL, NULL);
2246 if (!file_iformat && !file_oformat) {
2247 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2248 av_exit(1);
2249 }
2250 }
2251
2252 static int opt_default(const char *opt, const char *arg){
2253 int type;
2254 const AVOption *o= NULL;
2255 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
2256
2257 for(type=0; type<CODEC_TYPE_NB; type++){
2258 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
2259 if(o2)
2260 o = av_set_string2(avctx_opts[type], opt, arg, 1);
2261 }
2262 if(!o)
2263 o = av_set_string2(avformat_opts, opt, arg, 1);
2264 if(!o)
2265 o = av_set_string2(sws_opts, opt, arg, 1);
2266 if(!o){
2267 if(opt[0] == 'a')
2268 o = av_set_string2(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1);
2269 else if(opt[0] == 'v')
2270 o = av_set_string2(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1);
2271 else if(opt[0] == 's')
2272 o = av_set_string2(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1);
2273 }
2274 if(!o)
2275 return -1;
2276
2277 // av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
2278
2279 //FIXME we should always use avctx_opts, ... for storing options so there will not be any need to keep track of what i set over this
2280 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
2281 opt_names[opt_name_count++]= o->name;
2282
2283 if(avctx_opts[0]->debug || avformat_opts->debug)
2284 av_log_set_level(AV_LOG_DEBUG);
2285 return 0;
2286 }
2287
2288 static void opt_video_rc_override_string(const char *arg)
2289 {
2290 video_rc_override_string = arg;
2291 }
2292
2293 static int opt_me_threshold(const char *opt, const char *arg)
2294 {
2295 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2296 return 0;
2297 }
2298
2299 static int opt_verbose(const char *opt, const char *arg)
2300 {
2301 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2302 av_log_set_level(verbose);
2303 return 0;
2304 }
2305
2306 static int opt_frame_rate(const char *opt, const char *arg)
2307 {
2308 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2309 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2310 av_exit(1);
2311 }
2312 return 0;
2313 }
2314
2315 static int opt_bitrate(const char *opt, const char *arg)
2316 {
2317 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2318
2319 opt_default(opt, arg);
2320
2321 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2322 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2323
2324 return 0;
2325 }
2326
2327 static void opt_frame_crop_top(const char *arg)
2328 {
2329 frame_topBand = atoi(arg);
2330 if (frame_topBand < 0) {
2331 fprintf(stderr, "Incorrect top crop size\n");
2332 av_exit(1);
2333 }
2334 if ((frame_topBand % 2) != 0) {
2335 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2336 av_exit(1);
2337 }
2338 if ((frame_topBand) >= frame_height){
2339 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2340 av_exit(1);
2341 }
2342 frame_height -= frame_topBand;
2343 }
2344
2345 static void opt_frame_crop_bottom(const char *arg)
2346 {
2347 frame_bottomBand = atoi(arg);
2348 if (frame_bottomBand < 0) {
2349 fprintf(stderr, "Incorrect bottom crop size\n");
2350 av_exit(1);
2351 }
2352 if ((frame_bottomBand % 2) != 0) {
2353 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2354 av_exit(1);
2355 }
2356 if ((frame_bottomBand) >= frame_height){
2357 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2358 av_exit(1);
2359 }
2360 frame_height -= frame_bottomBand;
2361 }
2362
2363 static void opt_frame_crop_left(const char *arg)
2364 {
2365 frame_leftBand = atoi(arg);
2366 if (frame_leftBand < 0) {
2367 fprintf(stderr, "Incorrect left crop size\n");
2368 av_exit(1);
2369 }
2370 if ((frame_leftBand % 2) != 0) {
2371 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2372 av_exit(1);
2373 }
2374 if ((frame_leftBand) >= frame_width){
2375 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2376 av_exit(1);
2377 }
2378 frame_width -= frame_leftBand;
2379 }
2380
2381 static void opt_frame_crop_right(const char *arg)
2382 {
2383 frame_rightBand = atoi(arg);
2384 if (frame_rightBand < 0) {
2385 fprintf(stderr, "Incorrect right crop size\n");
2386 av_exit(1);
2387 }
2388 if ((frame_rightBand % 2) != 0) {
2389 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2390 av_exit(1);
2391 }
2392 if ((frame_rightBand) >= frame_width){
2393 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2394 av_exit(1);
2395 }
2396 frame_width -= frame_rightBand;
2397 }
2398
2399 static void opt_frame_size(const char *arg)
2400 {
2401 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2402 fprintf(stderr, "Incorrect frame size\n");
2403 av_exit(1);
2404 }
2405 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2406 fprintf(stderr, "Frame size must be a multiple of 2\n");
2407 av_exit(1);
2408 }
2409 }
2410
2411
2412 #define SCALEBITS 10
2413 #define ONE_HALF (1 << (SCALEBITS - 1))
2414 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2415
2416 #define RGB_TO_Y(r, g, b) \
2417 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2418 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2419
2420 #define RGB_TO_U(r1, g1, b1, shift)\
2421 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2422 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2423
2424 #define RGB_TO_V(r1, g1, b1, shift)\
2425 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2426 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2427
2428 static void opt_pad_color(const char *arg) {
2429 /* Input is expected to be six hex digits similar to
2430 how colors are expressed in html tags (but without the #) */
2431 int rgb = strtol(arg, NULL, 16);
2432 int r,g,b;
2433
2434 r = (rgb >> 16);
2435 g = ((rgb >> 8) & 255);
2436 b = (rgb & 255);
2437
2438 padcolor[0] = RGB_TO_Y(r,g,b);
2439 padcolor[1] = RGB_TO_U(r,g,b,0);
2440 padcolor[2] = RGB_TO_V(r,g,b,0);
2441 }
2442
2443 static void opt_frame_pad_top(const char *arg)
2444 {
2445 frame_padtop = atoi(arg);
2446 if (frame_padtop < 0) {
2447 fprintf(stderr, "Incorrect top pad size\n");
2448 av_exit(1);
2449 }
2450 if ((frame_padtop % 2) != 0) {
2451 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2452 av_exit(1);
2453 }
2454 }
2455
2456 static void opt_frame_pad_bottom(const char *arg)
2457 {
2458 frame_padbottom = atoi(arg);
2459 if (frame_padbottom < 0) {
2460 fprintf(stderr, "Incorrect bottom pad size\n");
2461 av_exit(1);
2462 }
2463 if ((frame_padbottom % 2) != 0) {
2464 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2465 av_exit(1);
2466 }
2467 }
2468
2469
2470 static void opt_frame_pad_left(const char *arg)
2471 {
2472 frame_padleft = atoi(arg);
2473 if (frame_padleft < 0) {
2474 fprintf(stderr, "Incorrect left pad size\n");
2475 av_exit(1);
2476 }
2477 if ((frame_padleft % 2) != 0) {
2478 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2479 av_exit(1);
2480 }
2481 }
2482
2483
2484 static void opt_frame_pad_right(const char *arg)
2485 {
2486 frame_padright = atoi(arg);
2487 if (frame_padright < 0) {
2488 fprintf(stderr, "Incorrect right pad size\n");
2489 av_exit(1);
2490 }
2491 if ((frame_padright % 2) != 0) {
2492 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2493 av_exit(1);
2494 }
2495 }
2496
2497 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2498 {
2499 int i;
2500 char fmt_str[128];
2501 for (i=-1; i < nb_fmts; i++) {
2502 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2503 fprintf(stdout, "%s\n", fmt_str);
2504 }
2505 }
2506
2507 static void opt_frame_pix_fmt(const char *arg)
2508 {
2509 if (strcmp(arg, "list"))
2510 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2511 else {
2512 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2513 av_exit(0);
2514 }
2515 }
2516
2517 static void opt_frame_aspect_ratio(const char *arg)
2518 {
2519 int x = 0, y = 0;
2520 double ar = 0;
2521 const char *p;
2522 char *end;
2523
2524 p = strchr(arg, ':');
2525 if (p) {
2526 x = strtol(arg, &end, 10);
2527 if (end == p)
2528 y = strtol(end+1, &end, 10);
2529 if (x > 0 && y > 0)
2530 ar = (double)x / (double)y;
2531 } else
2532 ar = strtod(arg, NULL);
2533
2534 if (!ar) {
2535 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2536 av_exit(1);
2537 }
2538 frame_aspect_ratio = ar;
2539 }
2540
2541 static void opt_qscale(const char *arg)
2542 {
2543 video_qscale = atof(arg);
2544 if (video_qscale <= 0 ||
2545 video_qscale > 255) {
2546 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2547 av_exit(1);
2548 }
2549 }
2550
2551 static void opt_top_field_first(const char *arg)
2552 {
2553 top_field_first= atoi(arg);
2554 }
2555
2556 static int opt_thread_count(const char *opt, const char *arg)
2557 {
2558 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2559 #if !defined(HAVE_THREADS)
2560 if (verbose >= 0)
2561 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2562 #endif
2563 return 0;
2564 }
2565
2566 static void opt_audio_sample_fmt(const char *arg)
2567 {
2568 if (strcmp(arg, "list"))
2569 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2570 else {
2571 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2572 av_exit(0);
2573 }
2574 }
2575
2576 static int opt_audio_rate(const char *opt, const char *arg)
2577 {
2578 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2579 return 0;
2580 }
2581
2582 static int opt_audio_channels(const char *opt, const char *arg)
2583 {
2584 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2585 return 0;
2586 }
2587
2588 static void opt_video_channel(const char *arg)
2589 {
2590 video_channel = strtol(arg, NULL, 0);
2591 }
2592
2593 static void opt_video_standard(const char *arg)
2594 {
2595 video_standard = av_strdup(arg);
2596 }
2597
2598 static void opt_codec(int *pstream_copy, char **pcodec_name,
2599 int codec_type, const char *arg)
2600 {
2601 av_freep(pcodec_name);
2602 if (!strcmp(arg, "copy")) {
2603 *pstream_copy = 1;
2604 } else {
2605 *pcodec_name = av_strdup(arg);
2606 }
2607 }
2608
2609 static void opt_audio_codec(const char *arg)
2610 {
2611 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2612 }
2613
2614 static void opt_audio_tag(const char *arg)
2615 {
2616 char *tail;
2617 audio_codec_tag= strtol(arg, &tail, 0);
2618
2619 if(!tail || *tail)
2620 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2621 }
2622
2623 static void opt_video_tag(const char *arg)
2624 {
2625 char *tail;
2626 video_codec_tag= strtol(arg, &tail, 0);
2627
2628 if(!tail || *tail)
2629 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2630 }
2631
2632 #ifdef CONFIG_VHOOK
2633 static void add_frame_hooker(const char *arg)
2634 {
2635 int argc = 0;
2636 char *argv[64];
2637 int i;
2638 char *args = av_strdup(arg);
2639
2640 using_vhook = 1;
2641
2642 argv[0] = strtok(args, " ");
2643 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2644 }
2645
2646 i = frame_hook_add(argc, argv);
2647
2648 if (i != 0) {
2649 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2650 av_exit(1);
2651 }
2652 }
2653 #endif
2654
2655 static void opt_video_codec(const char *arg)
2656 {
2657 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2658 }
2659
2660 static void opt_subtitle_codec(const char *arg)
2661 {
2662 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2663 }
2664
2665 static void opt_map(const char *arg)
2666 {
2667 AVStreamMap *m;
2668 char *p;
2669
2670 m = &stream_maps[nb_stream_maps++];
2671
2672 m->file_index = strtol(arg, &p, 0);
2673 if (*p)
2674 p++;
2675
2676 m->stream_index = strtol(p, &p, 0);
2677 if (*p) {
2678 p++;
2679 m->sync_file_index = strtol(p, &p, 0);
2680 if (*p)
2681 p++;
2682 m->sync_stream_index = strtol(p, &p, 0);
2683 } else {
2684 m->sync_file_index = m->file_index;
2685 m->sync_stream_index = m->stream_index;
2686 }
2687 }
2688
2689 static void opt_map_meta_data(const char *arg)
2690 {
2691 AVMetaDataMap *m;
2692 char *p;
2693
2694 m = &meta_data_maps[nb_meta_data_maps++];
2695
2696 m->out_file = strtol(arg, &p, 0);
2697 if (*p)
2698 p++;
2699
2700 m->in_file = strtol(p, &p, 0);
2701 }
2702
2703 static void opt_input_ts_scale(const char *arg)
2704 {
2705 unsigned int stream;
2706 double scale;
2707 char *p;
2708
2709 stream = strtol(arg, &p, 0);
2710 if (*p)
2711 p++;
2712 scale= strtod(p, &p);
2713
2714 if(stream >= MAX_STREAMS)
2715 av_exit(1);
2716
2717 input_files_ts_scale[nb_input_files][stream]= scale;
2718 }
2719
2720 static int opt_recording_time(const char *opt, const char *arg)
2721 {
2722 recording_time = parse_time_or_die(opt, arg, 1);
2723 return 0;
2724 }
2725
2726 static int opt_start_time(const char *opt, const char *arg)
2727 {
2728 start_time = parse_time_or_die(opt, arg, 1);
2729 return 0;
2730 }
2731
2732 static int opt_rec_timestamp(const char *opt, const char *arg)
2733 {
2734 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2735 return 0;
2736 }
2737
2738 static int opt_input_ts_offset(const char *opt, const char *arg)
2739 {
2740 input_ts_offset = parse_time_or_die(opt, arg, 1);
2741 return 0;
2742 }
2743
2744 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2745 {
2746 const char *codec_string = encoder ? "encoder" : "decoder";
2747 AVCodec *codec;
2748
2749 if(!name)
2750 return CODEC_ID_NONE;
2751 codec = encoder ?
2752 avcodec_find_encoder_by_name(name) :
2753 avcodec_find_decoder_by_name(name);
2754 if(!codec) {
2755 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2756 av_exit(1);
2757 }
2758 if(codec->type != type) {
2759 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2760 av_exit(1);
2761 }
2762 return codec->id;
2763 }
2764
2765 static void set_context_opts(void *ctx, void *opts_ctx, int flags)
2766 {
2767 int i;
2768 for(i=0; i<opt_name_count; i++){
2769 char buf[256];
2770 const AVOption *opt;
2771 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
2772 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
2773 if(str && ((opt->flags & flags) == flags))
2774 av_set_string2(ctx, opt_names[i], str, 1);
2775 }
2776 }
2777
2778 static void opt_input_file(const char *filename)
2779 {
2780 AVFormatContext *ic;
2781 AVFormatParameters params, *ap = &params;
2782 int err, i, ret, rfps, rfps_base;
2783 int64_t timestamp;
2784
2785 if (!strcmp(filename, "-"))
2786 filename = "pipe:";
2787
2788 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2789 !strcmp(filename, "/dev/stdin");
2790
2791 /* get default parameters from command line */
2792 ic = av_alloc_format_context();
2793
2794 memset(ap, 0, sizeof(*ap));
2795 ap->prealloced_context = 1;
2796 ap->sample_rate = audio_sample_rate;
2797 ap->channels = audio_channels;
2798 ap->time_base.den = frame_rate.num;
2799 ap->time_base.num = frame_rate.den;
2800 ap->width = frame_width + frame_padleft + frame_padright;
2801 ap->height = frame_height + frame_padtop + frame_padbottom;
2802 ap->pix_fmt = frame_pix_fmt;
2803 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2804 ap->channel = video_channel;
2805 ap->standard = video_standard;
2806 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2807 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2808 if(pgmyuv_compatibility_hack)
2809 ap->video_codec_id= CODEC_ID_PGMYUV;
2810
2811 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2812
2813 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2814 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2815 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2816
2817 /* open the input file with generic libav function */
2818 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2819 if (err < 0) {
2820 print_error(filename, err);
2821 av_exit(1);
2822 }
2823 if(opt_programid) {
2824 int i;
2825 for(i=0; i<ic->nb_programs; i++)
2826 if(ic->programs[i]->id != opt_programid)
2827 ic->programs[i]->discard = AVDISCARD_ALL;
2828 }
2829
2830 ic->loop_input = loop_input;
2831
2832 /* If not enough info to get the stream parameters, we decode the
2833 first frames to get it. (used in mpeg case for example) */
2834 ret = av_find_stream_info(ic);
2835 if (ret < 0 && verbose >= 0) {
2836 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2837 av_exit(1);
2838 }
2839
2840 timestamp = start_time;
2841 /* add the stream start time */
2842 if (ic->start_time != AV_NOPTS_VALUE)
2843 timestamp += ic->start_time;
2844
2845 /* if seeking requested, we execute it */
2846 if (start_time != 0) {
2847 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2848 if (ret < 0) {
2849 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2850 filename, (double)timestamp / AV_TIME_BASE);
2851 }
2852 /* reset seek info */
2853 start_time = 0;
2854 }
2855
2856 /* update the current parameters so that they match the one of the input stream */
2857 for(i=0;i<ic->nb_streams;i++) {
2858 AVCodecContext *enc = ic->streams[i]->codec;
2859 if(thread_count>1)
2860 avcodec_thread_init(enc, thread_count);
2861 enc->thread_count= thread_count;
2862 switch(enc->codec_type) {
2863 case CODEC_TYPE_AUDIO:
2864 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2865 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2866 audio_channels = enc->channels;
2867 audio_sample_rate = enc->sample_rate;
2868 audio_sample_fmt = enc->sample_fmt;
2869 if(audio_disable)
2870 ic->streams[i]->discard= AVDISCARD_ALL;
2871 break;
2872 case CODEC_TYPE_VIDEO:
2873 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2874 frame_height = enc->height;
2875 frame_width = enc->width;
2876 if(ic->streams[i]->sample_aspect_ratio.num)
2877 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2878 else
2879 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2880 frame_aspect_ratio *= (float) enc->width / enc->height;
2881 frame_pix_fmt = enc->pix_fmt;
2882 rfps = ic->streams[i]->r_frame_rate.num;
2883 rfps_base = ic->streams[i]->r_frame_rate.den;
2884 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2885 if(me_threshold)
2886 enc->debug |= FF_DEBUG_MV;
2887
2888 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2889
2890 if (verbose >= 0)
2891 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2892 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2893
2894 (float)rfps / rfps_base, rfps, rfps_base);
2895 }
2896 /* update the current frame rate to match the stream frame rate */
2897 frame_rate.num = rfps;
2898 frame_rate.den = rfps_base;
2899
2900 enc->rate_emu = rate_emu;
2901 if(video_disable)
2902 ic->streams[i]->discard= AVDISCARD_ALL;
2903 else if(video_discard)
2904 ic->streams[i]->discard= video_discard;
2905 break;
2906 case CODEC_TYPE_DATA:
2907 break;
2908 case CODEC_TYPE_SUBTITLE:
2909 if(subtitle_disable)
2910 ic->streams[i]->discard = AVDISCARD_ALL;
2911 break;
2912 case CODEC_TYPE_ATTACHMENT:
2913 case CODEC_TYPE_UNKNOWN:
2914 break;
2915 default:
2916 abort();
2917 }
2918 }
2919
2920 input_files[nb_input_files] = ic;
2921 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2922 /* dump the file content */
2923 if (verbose >= 0)
2924 dump_format(ic, nb_input_files, filename, 0);
2925
2926 nb_input_files++;
2927 file_iformat = NULL;
2928 file_oformat = NULL;
2929
2930 video_channel = 0;
2931
2932 rate_emu = 0;
2933 av_freep(&video_codec_name);
2934 av_freep(&audio_codec_name);
2935 av_freep(&subtitle_codec_name);
2936 }
2937
2938 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2939 int *has_subtitle_ptr)
2940 {
2941 int has_video, has_audio, has_subtitle, i, j;
2942 AVFormatContext *ic;
2943
2944 has_video = 0;
2945 has_audio = 0;
2946 has_subtitle = 0;
2947 for(j=0;j<nb_input_files;j++) {
2948 ic = input_files[j];
2949 for(i=0;i<ic->nb_streams;i++) {
2950 AVCodecContext *enc = ic->streams[i]->codec;
2951 switch(enc->codec_type) {
2952 case CODEC_TYPE_AUDIO:
2953 has_audio = 1;
2954 break;
2955 case CODEC_TYPE_VIDEO:
2956 has_video = 1;
2957 break;
2958 case CODEC_TYPE_SUBTITLE:
2959 has_subtitle = 1;
2960 break;
2961 case CODEC_TYPE_DATA:
2962 case CODEC_TYPE_ATTACHMENT:
2963 case CODEC_TYPE_UNKNOWN:
2964 break;
2965 default:
2966 abort();
2967 }
2968 }
2969 }
2970 *has_video_ptr = has_video;
2971 *has_audio_ptr = has_audio;
2972 *has_subtitle_ptr = has_subtitle;
2973 }
2974
2975 static void new_video_stream(AVFormatContext *oc)
2976 {
2977 AVStream *st;
2978 AVCodecContext *video_enc;
2979 int codec_id;
2980
2981 st = av_new_stream(oc, oc->nb_streams);
2982 if (!st) {
2983 fprintf(stderr, "Could not alloc stream\n");
2984 av_exit(1);
2985 }
2986 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2987 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2988 video_bitstream_filters= NULL;
2989
2990 if(thread_count>1)
2991 avcodec_thread_init(st->codec, thread_count);
2992
2993 video_enc = st->codec;
2994
2995 if(video_codec_tag)
2996 video_enc->codec_tag= video_codec_tag;
2997
2998 if( (video_global_header&1)
2999 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3000 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3001 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3002 }
3003 if(video_global_header&2){
3004 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3005 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3006 }
3007
3008 if (video_stream_copy) {
3009 st->stream_copy = 1;
3010 video_enc->codec_type = CODEC_TYPE_VIDEO;
3011 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3012 } else {
3013 const char *p;
3014 int i;
3015 AVCodec *codec;
3016 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3017
3018 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3019 if (video_codec_name)
3020 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3021
3022 video_enc->codec_id = codec_id;
3023 codec = avcodec_find_encoder(codec_id);
3024
3025 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3026
3027 video_enc->time_base.den = fps.num;
3028 video_enc->time_base.num = fps.den;
3029 if(codec && codec->supported_framerates){
3030 const AVRational *p= codec->supported_framerates;
3031 const AVRational *best=NULL;
3032 AVRational best_error= (AVRational){INT_MAX, 1};
3033 for(; p->den!=0; p++){
3034 AVRational error= av_sub_q(fps, *p);
3035 if(error.num <0) error.num *= -1;
3036 if(av_cmp_q(error, best_error) < 0){
3037 best_error= error;
3038 best= p;
3039 }
3040 }
3041 video_enc->time_base.den= best->num;
3042 video_enc->time_base.num= best->den;
3043 }
3044
3045 video_enc->width = frame_width + frame_padright + frame_padleft;
3046 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3047 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3048 video_enc->pix_fmt = frame_pix_fmt;
3049 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3050
3051 if(codec && codec->pix_fmts){
3052 const enum PixelFormat *p= codec->pix_fmts;
3053 for(; *p!=-1; p++){
3054 if(*p == video_enc->pix_fmt)
3055 break;
3056 }
3057 if(*p == -1)
3058 video_enc->pix_fmt = codec->pix_fmts[0];
3059 }
3060
3061 if (intra_only)
3062 video_enc->gop_size = 0;
3063 if (video_qscale || same_quality) {
3064 video_enc->flags |= CODEC_FLAG_QSCALE;
3065 video_enc->global_quality=
3066 st->quality = FF_QP2LAMBDA * video_qscale;
3067 }
3068
3069 if(intra_matrix)
3070 video_enc->intra_matrix = intra_matrix;
3071 if(inter_matrix)
3072 video_enc->inter_matrix = inter_matrix;
3073
3074 video_enc->thread_count = thread_count;
3075 p= video_rc_override_string;
3076 for(i=0; p; i++){
3077 int start, end, q;
3078 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3079 if(e!=3){
3080 fprintf(stderr, "error parsing rc_override\n");
3081 av_exit(1);
3082 }
3083 video_enc->rc_override=
3084 av_realloc(video_enc->rc_override,
3085 sizeof(RcOverride)*(i+1));
3086 video_enc->rc_override[i].start_frame= start;
3087 video_enc->rc_override[i].end_frame = end;
3088 if(q>0){
3089 video_enc->rc_override[i].qscale= q;
3090 video_enc->rc_override[i].quality_factor= 1.0;
3091 }
3092 else{
3093 video_enc->rc_override[i].qscale= 0;
3094 video_enc->rc_override[i].quality_factor= -q/100.0;
3095 }
3096 p= strchr(p, '/');
3097 if(p) p++;
3098 }
3099 video_enc->rc_override_count=i;
3100 if (!video_enc->rc_initial_buffer_occupancy)
3101 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3102 video_enc->me_threshold= me_threshold;
3103 video_enc->intra_dc_precision= intra_dc_precision - 8;
3104
3105 if (do_psnr)
3106 video_enc->flags|= CODEC_FLAG_PSNR;
3107
3108 /* two pass mode */
3109 if (do_pass) {
3110 if (do_pass == 1) {
3111 video_enc->flags |= CODEC_FLAG_PASS1;
3112 } else {
3113 video_enc->flags |= CODEC_FLAG_PASS2;
3114 }
3115 }
3116 }
3117
3118 /* reset some key parameters */
3119 video_disable = 0;
3120 av_freep(&video_codec_name);
3121 video_stream_copy = 0;
3122 }
3123
3124 static void new_audio_stream(AVFormatContext *oc)
3125 {
3126 AVStream *st;
3127 AVCodecContext *audio_enc;
3128 int codec_id;
3129
3130 st = av_new_stream(oc, oc->nb_streams);
3131 if (!st) {
3132 fprintf(stderr, "Could not alloc stream\n");
3133 av_exit(1);
3134 }
3135 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3136
3137 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3138 audio_bitstream_filters= NULL;
3139
3140 if(thread_count>1)
3141 avcodec_thread_init(st->codec, thread_count);
3142
3143 audio_enc = st->codec;
3144 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3145
3146 if(audio_codec_tag)
3147 audio_enc->codec_tag= audio_codec_tag;
3148
3149 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3150 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3151 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3152 }
3153 if (audio_stream_copy) {
3154 st->stream_copy = 1;
3155 audio_enc->channels = audio_channels;
3156 } else {
3157 AVCodec *codec;
3158 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3159
3160 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3161
3162 if (audio_codec_name)
3163 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3164 audio_enc->codec_id = codec_id;
3165 codec = avcodec_find_encoder(codec_id);
3166
3167 if (audio_qscale > QSCALE_NONE) {
3168 audio_enc->flags |= CODEC_FLAG_QSCALE;
3169 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3170 }
3171 audio_enc->thread_count = thread_count;
3172 audio_enc->channels = audio_channels;
3173 audio_enc->sample_fmt = audio_sample_fmt;
3174
3175 if(codec && codec->sample_fmts){
3176 const enum SampleFormat *p= codec->sample_fmts;
3177 for(; *p!=-1; p++){
3178 if(*p == audio_enc->sample_fmt)
3179 break;
3180 }
3181 if(*p == -1)
3182 audio_enc->sample_fmt = codec->sample_fmts[0];
3183 }
3184 }
3185 audio_enc->sample_rate = audio_sample_rate;
3186 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3187 if (audio_language) {
3188 av_strlcpy(st->language, audio_language, sizeof(st->language));
3189 av_free(audio_language);
3190 audio_language = NULL;
3191 }
3192
3193 /* reset some key parameters */
3194 audio_disable = 0;
3195 av_freep(&audio_codec_name);
3196 audio_stream_copy = 0;
3197 }
3198
3199 static void new_subtitle_stream(AVFormatContext *oc)
3200 {
3201 AVStream *st;
3202 AVCodecContext *subtitle_enc;
3203
3204 st = av_new_stream(oc, oc->nb_streams);
3205 if (!st) {
3206 fprintf(stderr, "Could not alloc stream\n");
3207 av_exit(1);
3208 }
3209 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3210
3211 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3212 subtitle_bitstream_filters= NULL;
3213
3214 subtitle_enc = st->codec;
3215 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3216 if (subtitle_stream_copy) {
3217 st->stream_copy = 1;
3218 } else