More OKed sections of AAC decoder code
[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
528 /* SC: dynamic allocation of buffers */
529 if (!audio_buf)
530 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
531 if (!audio_out)
532 audio_out = av_malloc(audio_out_size);
533 if (!audio_buf || !audio_out)
534 return; /* Should signal an error ! */
535
536 if (enc->channels != dec->channels)
537 ost->audio_resample = 1;
538
539 if (ost->audio_resample && !ost->resample) {
540 ost->resample = audio_resample_init(enc->channels, dec->channels,
541 enc->sample_rate, dec->sample_rate);
542 if (!ost->resample) {
543 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
544 dec->channels, dec->sample_rate,
545 enc->channels, enc->sample_rate);
546 av_exit(1);
547 }
548 }
549
550 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
551 if (dec->sample_fmt!=enc->sample_fmt &&
552 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
553 if (!audio_out2)
554 audio_out2 = av_malloc(audio_out_size);
555 if (!audio_out2)
556 av_exit(1);
557 if (ost->reformat_ctx)
558 av_audio_convert_free(ost->reformat_ctx);
559 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
560 dec->sample_fmt, 1, NULL, 0);
561 if (!ost->reformat_ctx) {
562 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
563 avcodec_get_sample_fmt_name(dec->sample_fmt),
564 avcodec_get_sample_fmt_name(enc->sample_fmt));
565 av_exit(1);
566 }
567 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
568 }
569
570 if(audio_sync_method){
571 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
572 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
573 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
574 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
575
576 //FIXME resample delay
577 if(fabs(delta) > 50){
578 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
579 if(byte_delta < 0){
580 byte_delta= FFMAX(byte_delta, -size);
581 size += byte_delta;
582 buf -= byte_delta;
583 if(verbose > 2)
584 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
585 if(!size)
586 return;
587 ist->is_start=0;
588 }else{
589 static uint8_t *input_tmp= NULL;
590 input_tmp= av_realloc(input_tmp, byte_delta + size);
591
592 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
593 ist->is_start=0;
594 else
595 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
596
597 memset(input_tmp, 0, byte_delta);
598 memcpy(input_tmp + byte_delta, buf, size);
599 buf= input_tmp;
600 size += byte_delta;
601 if(verbose > 2)
602 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
603 }
604 }else if(audio_sync_method>1){
605 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
606 assert(ost->audio_resample);
607 if(verbose > 2)
608 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
609 // 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));
610 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
611 }
612 }
613 }else
614 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
615 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
616
617 if (ost->audio_resample) {
618 buftmp = audio_buf;
619 size_out = audio_resample(ost->resample,
620 (short *)buftmp, (short *)buf,
621 size / (ist->st->codec->channels * 2));
622 size_out = size_out * enc->channels * 2;
623 } else {
624 buftmp = buf;
625 size_out = size;
626 }
627
628 if (dec->sample_fmt!=enc->sample_fmt) {
629 const void *ibuf[6]= {buftmp};
630 void *obuf[6]= {audio_out2};
631 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
632 int ostride[6]= {av_get_bits_per_sample_format(enc->sample_fmt)/8};
633 int len= size_out/istride[0];
634 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
635 printf("av_audio_convert() failed\n");
636 return;
637 }
638 buftmp = audio_out2;
639 /* FIXME: existing code assume that size_out equals framesize*channels*2
640 remove this legacy cruft */
641 size_out = len*2;
642 }
643
644 /* now encode as many frames as possible */
645 if (enc->frame_size > 1) {
646 /* output resampled raw samples */
647 av_fifo_realloc(&ost->fifo, av_fifo_size(&ost->fifo) + size_out);
648 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
649
650 frame_bytes = enc->frame_size * 2 * enc->channels;
651
652 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
653 AVPacket pkt;
654 av_init_packet(&pkt);
655
656 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
657
658 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
659
660 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
661 (short *)audio_buf);
662 audio_size += ret;
663 pkt.stream_index= ost->index;
664 pkt.data= audio_out;
665 pkt.size= ret;
666 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
667 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
668 pkt.flags |= PKT_FLAG_KEY;
669 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
670
671 ost->sync_opts += enc->frame_size;
672 }
673 } else {
674 AVPacket pkt;
675 av_init_packet(&pkt);
676
677 ost->sync_opts += size_out / (2 * enc->channels);
678
679 /* output a pcm frame */
680 /* XXX: change encoding codec API to avoid this ? */
681 switch(enc->codec->id) {
682 case CODEC_ID_PCM_S32LE:
683 case CODEC_ID_PCM_S32BE:
684 case CODEC_ID_PCM_U32LE:
685 case CODEC_ID_PCM_U32BE:
686 case CODEC_ID_PCM_F32BE:
687 size_out = size_out << 1;
688 break;
689 case CODEC_ID_PCM_S24LE:
690 case CODEC_ID_PCM_S24BE:
691 case CODEC_ID_PCM_U24LE:
692 case CODEC_ID_PCM_U24BE:
693 case CODEC_ID_PCM_S24DAUD:
694 size_out = size_out / 2 * 3;
695 break;
696 case CODEC_ID_PCM_S16LE:
697 case CODEC_ID_PCM_S16BE:
698 case CODEC_ID_PCM_U16LE:
699 case CODEC_ID_PCM_U16BE:
700 break;
701 default:
702 size_out = size_out >> 1;
703 break;
704 }
705 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
706 ret = avcodec_encode_audio(enc, audio_out, size_out,
707 (short *)buftmp);
708 audio_size += ret;
709 pkt.stream_index= ost->index;
710 pkt.data= audio_out;
711 pkt.size= ret;
712 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
713 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
714 pkt.flags |= PKT_FLAG_KEY;
715 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
716 }
717 }
718
719 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
720 {
721 AVCodecContext *dec;
722 AVPicture *picture2;
723 AVPicture picture_tmp;
724 uint8_t *buf = 0;
725
726 dec = ist->st->codec;
727
728 /* deinterlace : must be done before any resize */
729 if (do_deinterlace || using_vhook) {
730 int size;
731
732 /* create temporary picture */
733 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
734 buf = av_malloc(size);
735 if (!buf)
736 return;
737
738 picture2 = &picture_tmp;
739 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
740
741 if (do_deinterlace){
742 if(avpicture_deinterlace(picture2, picture,
743 dec->pix_fmt, dec->width, dec->height) < 0) {
744 /* if error, do not deinterlace */
745 av_free(buf);
746 buf = NULL;
747 picture2 = picture;
748 }
749 } else {
750 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
751 }
752 } else {
753 picture2 = picture;
754 }
755
756 if (ENABLE_VHOOK)
757 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
758 1000000 * ist->pts / AV_TIME_BASE);
759
760 if (picture != picture2)
761 *picture = *picture2;
762 *bufp = buf;
763 }
764
765 /* we begin to correct av delay at this threshold */
766 #define AV_DELAY_MAX 0.100
767
768 static void do_subtitle_out(AVFormatContext *s,
769 AVOutputStream *ost,
770 AVInputStream *ist,
771 AVSubtitle *sub,
772 int64_t pts)
773 {
774 static uint8_t *subtitle_out = NULL;
775 int subtitle_out_max_size = 65536;
776 int subtitle_out_size, nb, i;
777 AVCodecContext *enc;
778 AVPacket pkt;
779
780 if (pts == AV_NOPTS_VALUE) {
781 fprintf(stderr, "Subtitle packets must have a pts\n");
782 return;
783 }
784
785 enc = ost->st->codec;
786
787 if (!subtitle_out) {
788 subtitle_out = av_malloc(subtitle_out_max_size);
789 }
790
791 /* Note: DVB subtitle need one packet to draw them and one other
792 packet to clear them */
793 /* XXX: signal it in the codec context ? */
794 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
795 nb = 2;
796 else
797 nb = 1;
798
799 for(i = 0; i < nb; i++) {
800 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
801 subtitle_out_max_size, sub);
802
803 av_init_packet(&pkt);
804 pkt.stream_index = ost->index;
805 pkt.data = subtitle_out;
806 pkt.size = subtitle_out_size;
807 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
808 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
809 /* XXX: the pts correction is handled here. Maybe handling
810 it in the codec would be better */
811 if (i == 0)
812 pkt.pts += 90 * sub->start_display_time;
813 else
814 pkt.pts += 90 * sub->end_display_time;
815 }
816 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
817 }
818 }
819
820 static int bit_buffer_size= 1024*256;
821 static uint8_t *bit_buffer= NULL;
822
823 static void do_video_out(AVFormatContext *s,
824 AVOutputStream *ost,
825 AVInputStream *ist,
826 AVFrame *in_picture,
827 int *frame_size)
828 {
829 int nb_frames, i, ret;
830 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
831 AVFrame picture_crop_temp, picture_pad_temp;
832 AVCodecContext *enc, *dec;
833
834 avcodec_get_frame_defaults(&picture_crop_temp);
835 avcodec_get_frame_defaults(&picture_pad_temp);
836
837 enc = ost->st->codec;
838 dec = ist->st->codec;
839
840 /* by default, we output a single frame */
841 nb_frames = 1;
842
843 *frame_size = 0;
844
845 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
846 double vdelta;
847 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
848 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
849 if (vdelta < -1.1)
850 nb_frames = 0;
851 else if (video_sync_method == 2)
852 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
853 else if (vdelta > 1.1)
854 nb_frames = lrintf(vdelta);
855 //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);
856 if (nb_frames == 0){
857 ++nb_frames_drop;
858 if (verbose>2)
859 fprintf(stderr, "*** drop!\n");
860 }else if (nb_frames > 1) {
861 nb_frames_dup += nb_frames;
862 if (verbose>2)
863 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
864 }
865 }else
866 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
867
868 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
869 if (nb_frames <= 0)
870 return;
871
872 if (ost->video_crop) {
873 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
874 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
875 return;
876 }
877 formatted_picture = &picture_crop_temp;
878 } else {
879 formatted_picture = in_picture;
880 }
881
882 final_picture = formatted_picture;
883 padding_src = formatted_picture;
884 resampling_dst = &ost->pict_tmp;
885 if (ost->video_pad) {
886 final_picture = &ost->pict_tmp;
887 if (ost->video_resample) {
888 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
889 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
890 return;
891 }
892 resampling_dst = &picture_pad_temp;
893 }
894 }
895
896 if (ost->video_resample) {
897 padding_src = NULL;
898 final_picture = &ost->pict_tmp;
899 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
900 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
901 }
902
903 if (ost->video_pad) {
904 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
905 enc->height, enc->width, enc->pix_fmt,
906 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
907 }
908
909 /* duplicates frame if needed */
910 for(i=0;i<nb_frames;i++) {
911 AVPacket pkt;
912 av_init_packet(&pkt);
913 pkt.stream_index= ost->index;
914
915 if (s->oformat->flags & AVFMT_RAWPICTURE) {
916 /* raw pictures are written as AVPicture structure to
917 avoid any copies. We support temorarily the older
918 method. */
919 AVFrame* old_frame = enc->coded_frame;
920 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
921 pkt.data= (uint8_t *)final_picture;
922 pkt.size= sizeof(AVPicture);
923 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
924 pkt.flags |= PKT_FLAG_KEY;
925
926 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
927 enc->coded_frame = old_frame;
928 } else {
929 AVFrame big_picture;
930
931 big_picture= *final_picture;
932 /* better than nothing: use input picture interlaced
933 settings */
934 big_picture.interlaced_frame = in_picture->interlaced_frame;
935 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
936 if(top_field_first == -1)
937 big_picture.top_field_first = in_picture->top_field_first;
938 else
939 big_picture.top_field_first = top_field_first;
940 }
941
942 /* handles sameq here. This is not correct because it may
943 not be a global option */
944 if (same_quality) {
945 big_picture.quality = ist->st->quality;
946 }else
947 big_picture.quality = ost->st->quality;
948 if(!me_threshold)
949 big_picture.pict_type = 0;
950 // big_picture.pts = AV_NOPTS_VALUE;
951 big_picture.pts= ost->sync_opts;
952 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
953 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
954 ret = avcodec_encode_video(enc,
955 bit_buffer, bit_buffer_size,
956 &big_picture);
957 if (ret == -1) {
958 fprintf(stderr, "Video encoding failed\n");
959 av_exit(1);
960 }
961 //enc->frame_number = enc->real_pict_num;
962 if(ret>0){
963 pkt.data= bit_buffer;
964 pkt.size= ret;
965 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
966 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
967 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
968 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
969 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
970
971 if(enc->coded_frame->key_frame)
972 pkt.flags |= PKT_FLAG_KEY;
973 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
974 *frame_size = ret;
975 video_size += ret;
976 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
977 // enc->frame_number-1, enc->real_pict_num, ret,
978 // enc->pict_type);
979 /* if two pass, output log */
980 if (ost->logfile && enc->stats_out) {
981 fprintf(ost->logfile, "%s", enc->stats_out);
982 }
983 }
984 }
985 ost->sync_opts++;
986 ost->frame_number++;
987 }
988 }
989
990 static double psnr(double d){
991 return -10.0*log(d)/log(10.0);
992 }
993
994 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
995 int frame_size)
996 {
997 AVCodecContext *enc;
998 int frame_number;
999 double ti1, bitrate, avg_bitrate;
1000
1001 /* this is executed just the first time do_video_stats is called */
1002 if (!vstats_file) {
1003 vstats_file = fopen(vstats_filename, "w");
1004 if (!vstats_file) {
1005 perror("fopen");
1006 av_exit(1);
1007 }
1008 }
1009
1010 enc = ost->st->codec;
1011 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1012 frame_number = ost->frame_number;
1013 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1014 if (enc->flags&CODEC_FLAG_PSNR)
1015 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1016
1017 fprintf(vstats_file,"f_size= %6d ", frame_size);
1018 /* compute pts value */
1019 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1020 if (ti1 < 0.01)
1021 ti1 = 0.01;
1022
1023 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1024 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1025 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1026 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1027 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1028 }
1029 }
1030
1031 static void print_report(AVFormatContext **output_files,
1032 AVOutputStream **ost_table, int nb_ostreams,
1033 int is_last_report)
1034 {
1035 char buf[1024];
1036 AVOutputStream *ost;
1037 AVFormatContext *oc, *os;
1038 int64_t total_size;
1039 AVCodecContext *enc;
1040 int frame_number, vid, i;
1041 double bitrate, ti1, pts;
1042 static int64_t last_time = -1;
1043 static int qp_histogram[52];
1044
1045 if (!is_last_report) {
1046 int64_t cur_time;
1047 /* display the report every 0.5 seconds */
1048 cur_time = av_gettime();
1049 if (last_time == -1) {
1050 last_time = cur_time;
1051 return;
1052 }
1053 if ((cur_time - last_time) < 500000)
1054 return;
1055 last_time = cur_time;
1056 }
1057
1058
1059 oc = output_files[0];
1060
1061 total_size = url_fsize(oc->pb);
1062 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1063 total_size= url_ftell(oc->pb);
1064
1065 buf[0] = '\0';
1066 ti1 = 1e10;
1067 vid = 0;
1068 for(i=0;i<nb_ostreams;i++) {
1069 ost = ost_table[i];
1070 os = output_files[ost->file_index];
1071 enc = ost->st->codec;
1072 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1073 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1074 !ost->st->stream_copy ?
1075 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1076 }
1077 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1078 float t = (av_gettime()-timer_start) / 1000000.0;
1079
1080 frame_number = ost->frame_number;
1081 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1082 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1083 !ost->st->stream_copy ?
1084 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1085 if(is_last_report)
1086 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1087 if(qp_hist){
1088 int j;
1089 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1090 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1091 qp_histogram[qp]++;
1092 for(j=0; j<32; j++)
1093 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1094 }
1095 if (enc->flags&CODEC_FLAG_PSNR){
1096 int j;
1097 double error, error_sum=0;
1098 double scale, scale_sum=0;
1099 char type[3]= {'Y','U','V'};
1100 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1101 for(j=0; j<3; j++){
1102 if(is_last_report){
1103 error= enc->error[j];
1104 scale= enc->width*enc->height*255.0*255.0*frame_number;
1105 }else{
1106 error= enc->coded_frame->error[j];
1107 scale= enc->width*enc->height*255.0*255.0;
1108 }
1109 if(j) scale/=4;
1110 error_sum += error;
1111 scale_sum += scale;
1112 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1113 }
1114 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1115 }
1116 vid = 1;
1117 }
1118 /* compute min output value */
1119 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1120 if ((pts < ti1) && (pts > 0))
1121 ti1 = pts;
1122 }
1123 if (ti1 < 0.01)
1124 ti1 = 0.01;
1125
1126 if (verbose || is_last_report) {
1127 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1128
1129 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1130 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1131 (double)total_size / 1024, ti1, bitrate);
1132
1133 if (verbose > 1)
1134 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1135 nb_frames_dup, nb_frames_drop);
1136
1137 if (verbose >= 0)
1138 fprintf(stderr, "%s \r", buf);
1139
1140 fflush(stderr);
1141 }
1142
1143 if (is_last_report && verbose >= 0){
1144 int64_t raw= audio_size + video_size + extra_size;
1145 fprintf(stderr, "\n");
1146 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1147 video_size/1024.0,
1148 audio_size/1024.0,
1149 extra_size/1024.0,
1150 100.0*(total_size - raw)/raw
1151 );
1152 }
1153 }
1154
1155 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1156 static int output_packet(AVInputStream *ist, int ist_index,
1157 AVOutputStream **ost_table, int nb_ostreams,
1158 const AVPacket *pkt)
1159 {
1160 AVFormatContext *os;
1161 AVOutputStream *ost;
1162 uint8_t *ptr;
1163 int len, ret, i;
1164 uint8_t *data_buf;
1165 int data_size, got_picture;
1166 AVFrame picture;
1167 void *buffer_to_free;
1168 static unsigned int samples_size= 0;
1169 static short *samples= NULL;
1170 AVSubtitle subtitle, *subtitle_to_free;
1171 int got_subtitle;
1172
1173 if(ist->next_pts == AV_NOPTS_VALUE)
1174 ist->next_pts= ist->pts;
1175
1176 if (pkt == NULL) {
1177 /* EOF handling */
1178 ptr = NULL;
1179 len = 0;
1180 goto handle_eof;
1181 }
1182
1183 if(pkt->dts != AV_NOPTS_VALUE)
1184 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1185
1186 len = pkt->size;
1187 ptr = pkt->data;
1188
1189 //while we have more to decode or while the decoder did output something on EOF
1190 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1191 handle_eof:
1192 ist->pts= ist->next_pts;
1193
1194 if(len && len != pkt->size && verbose>0)
1195 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1196
1197 /* decode the packet if needed */
1198 data_buf = NULL; /* fail safe */
1199 data_size = 0;
1200 subtitle_to_free = NULL;
1201 if (ist->decoding_needed) {
1202 switch(ist->st->codec->codec_type) {
1203 case CODEC_TYPE_AUDIO:{
1204 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1205 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1206 av_free(samples);
1207 samples= av_malloc(samples_size);
1208 }
1209 data_size= samples_size;
1210 /* XXX: could avoid copy if PCM 16 bits with same
1211 endianness as CPU */
1212 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1213 ptr, len);
1214 if (ret < 0)
1215 goto fail_decode;
1216 ptr += ret;
1217 len -= ret;
1218 /* Some bug in mpeg audio decoder gives */
1219 /* data_size < 0, it seems they are overflows */
1220 if (data_size <= 0) {
1221 /* no audio frame */
1222 continue;
1223 }
1224 data_buf = (uint8_t *)samples;
1225 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1226 (ist->st->codec->sample_rate * ist->st->codec->channels);
1227 break;}
1228 case CODEC_TYPE_VIDEO:
1229 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1230 /* XXX: allocate picture correctly */
1231 avcodec_get_frame_defaults(&picture);
1232
1233 ret = avcodec_decode_video(ist->st->codec,
1234 &picture, &got_picture, ptr, len);
1235 ist->st->quality= picture.quality;
1236 if (ret < 0)
1237 goto fail_decode;
1238 if (!got_picture) {
1239 /* no picture yet */
1240 goto discard_packet;
1241 }
1242 if (ist->st->codec->time_base.num != 0) {
1243 ist->next_pts += ((int64_t)AV_TIME_BASE *
1244 ist->st->codec->time_base.num) /
1245 ist->st->codec->time_base.den;
1246 }
1247 len = 0;
1248 break;
1249 case CODEC_TYPE_SUBTITLE:
1250 ret = avcodec_decode_subtitle(ist->st->codec,
1251 &subtitle, &got_subtitle, ptr, len);
1252 if (ret < 0)
1253 goto fail_decode;
1254 if (!got_subtitle) {
1255 goto discard_packet;
1256 }
1257 subtitle_to_free = &subtitle;
1258 len = 0;
1259 break;
1260 default:
1261 goto fail_decode;
1262 }
1263 } else {
1264 switch(ist->st->codec->codec_type) {
1265 case CODEC_TYPE_AUDIO:
1266 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1267 ist->st->codec->sample_rate;
1268 break;
1269 case CODEC_TYPE_VIDEO:
1270 if (ist->st->codec->time_base.num != 0) {
1271 ist->next_pts += ((int64_t)AV_TIME_BASE *
1272 ist->st->codec->time_base.num) /
1273 ist->st->codec->time_base.den;
1274 }
1275 break;
1276 }
1277 data_buf = ptr;
1278 data_size = len;
1279 ret = len;
1280 len = 0;
1281 }
1282
1283 buffer_to_free = NULL;
1284 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1285 pre_process_video_frame(ist, (AVPicture *)&picture,
1286 &buffer_to_free);
1287 }
1288
1289 // preprocess audio (volume)
1290 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1291 if (audio_volume != 256) {
1292 short *volp;
1293 volp = samples;
1294 for(i=0;i<(data_size / sizeof(short));i++) {
1295 int v = ((*volp) * audio_volume + 128) >> 8;
1296 if (v < -32768) v = -32768;
1297 if (v > 32767) v = 32767;
1298 *volp++ = v;
1299 }
1300 }
1301 }
1302
1303 /* frame rate emulation */
1304 if (ist->st->codec->rate_emu) {
1305 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1306 int64_t now = av_gettime() - ist->start;
1307 if (pts > now)
1308 usleep(pts - now);
1309
1310 ist->frame++;
1311 }
1312
1313 #if 0
1314 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1315 is the one of the next displayed one */
1316 /* XXX: add mpeg4 too ? */
1317 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1318 if (ist->st->codec->pict_type != B_TYPE) {
1319 int64_t tmp;
1320 tmp = ist->last_ip_pts;
1321 ist->last_ip_pts = ist->frac_pts.val;
1322 ist->frac_pts.val = tmp;
1323 }
1324 }
1325 #endif
1326 /* if output time reached then transcode raw format,
1327 encode packets and output them */
1328 if (start_time == 0 || ist->pts >= start_time)
1329 for(i=0;i<nb_ostreams;i++) {
1330 int frame_size;
1331
1332 ost = ost_table[i];
1333 if (ost->source_index == ist_index) {
1334 os = output_files[ost->file_index];
1335
1336 #if 0
1337 printf("%d: got pts=%0.3f %0.3f\n", i,
1338 (double)pkt->pts / AV_TIME_BASE,
1339 ((double)ist->pts / AV_TIME_BASE) -
1340 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1341 #endif
1342 /* set the input output pts pairs */
1343 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1344
1345 if (ost->encoding_needed) {
1346 switch(ost->st->codec->codec_type) {
1347 case CODEC_TYPE_AUDIO:
1348 do_audio_out(os, ost, ist, data_buf, data_size);
1349 break;
1350 case CODEC_TYPE_VIDEO:
1351 do_video_out(os, ost, ist, &picture, &frame_size);
1352 if (vstats_filename && frame_size)
1353 do_video_stats(os, ost, frame_size);
1354 break;
1355 case CODEC_TYPE_SUBTITLE:
1356 do_subtitle_out(os, ost, ist, &subtitle,
1357 pkt->pts);
1358 break;
1359 default:
1360 abort();
1361 }
1362 } else {
1363 AVFrame avframe; //FIXME/XXX remove this
1364 AVPacket opkt;
1365 av_init_packet(&opkt);
1366
1367 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1368 continue;
1369
1370 /* no reencoding needed : output the packet directly */
1371 /* force the input stream PTS */
1372
1373 avcodec_get_frame_defaults(&avframe);
1374 ost->st->codec->coded_frame= &avframe;
1375 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1376
1377 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1378 audio_size += data_size;
1379 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1380 video_size += data_size;
1381 ost->sync_opts++;
1382 }
1383
1384 opkt.stream_index= ost->index;
1385 if(pkt->pts != AV_NOPTS_VALUE)
1386 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1387 else
1388 opkt.pts= AV_NOPTS_VALUE;
1389
1390 if (pkt->dts == AV_NOPTS_VALUE)
1391 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1392 else
1393 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1394
1395 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1396 opkt.flags= pkt->flags;
1397
1398 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1399 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1400 opkt.destruct= av_destruct_packet;
1401
1402 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1403 ost->st->codec->frame_number++;
1404 ost->frame_number++;
1405 av_free_packet(&opkt);
1406 }
1407 }
1408 }
1409 av_free(buffer_to_free);
1410 /* XXX: allocate the subtitles in the codec ? */
1411 if (subtitle_to_free) {
1412 if (subtitle_to_free->rects != NULL) {
1413 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1414 av_free(subtitle_to_free->rects[i].bitmap);
1415 av_free(subtitle_to_free->rects[i].rgba_palette);
1416 }
1417 av_freep(&subtitle_to_free->rects);
1418 }
1419 subtitle_to_free->num_rects = 0;
1420 subtitle_to_free = NULL;
1421 }
1422 }
1423 discard_packet:
1424 if (pkt == NULL) {
1425 /* EOF handling */
1426
1427 for(i=0;i<nb_ostreams;i++) {
1428 ost = ost_table[i];
1429 if (ost->source_index == ist_index) {
1430 AVCodecContext *enc= ost->st->codec;
1431 os = output_files[ost->file_index];
1432
1433 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1434 continue;
1435 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1436 continue;
1437
1438 if (ost->encoding_needed) {
1439 for(;;) {
1440 AVPacket pkt;
1441 int fifo_bytes;
1442 av_init_packet(&pkt);
1443 pkt.stream_index= ost->index;
1444
1445 switch(ost->st->codec->codec_type) {
1446 case CODEC_TYPE_AUDIO:
1447 fifo_bytes = av_fifo_size(&ost->fifo);
1448 ret = 0;
1449 /* encode any samples remaining in fifo */
1450 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1451 int fs_tmp = enc->frame_size;
1452 enc->frame_size = fifo_bytes / (2 * enc->channels);
1453 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1454 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1455 enc->frame_size = fs_tmp;
1456 }
1457 if(ret <= 0) {
1458 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1459 }
1460 audio_size += ret;
1461 pkt.flags |= PKT_FLAG_KEY;
1462 break;
1463 case CODEC_TYPE_VIDEO:
1464 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1465 video_size += ret;
1466 if(enc->coded_frame && enc->coded_frame->key_frame)
1467 pkt.flags |= PKT_FLAG_KEY;
1468 if (ost->logfile && enc->stats_out) {
1469 fprintf(ost->logfile, "%s", enc->stats_out);
1470 }
1471 break;
1472 default:
1473 ret=-1;
1474 }
1475
1476 if(ret<=0)
1477 break;
1478 pkt.data= bit_buffer;
1479 pkt.size= ret;
1480 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1481 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1482 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1483 }
1484 }
1485 }
1486 }
1487 }
1488
1489 return 0;
1490 fail_decode:
1491 return -1;
1492 }
1493
1494 static void print_sdp(AVFormatContext **avc, int n)
1495 {
1496 char sdp[2048];
1497
1498 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1499 printf("SDP:\n%s\n", sdp);
1500 }
1501
1502 static int stream_index_from_inputs(AVFormatContext **input_files,
1503 int nb_input_files,
1504 AVInputFile *file_table,
1505 AVInputStream **ist_table,
1506 enum CodecType type,
1507 int programid)
1508 {
1509 int p, q, z;
1510 for(z=0; z<nb_input_files; z++) {
1511 AVFormatContext *ic = input_files[z];
1512 for(p=0; p<ic->nb_programs; p++) {
1513 AVProgram *program = ic->programs[p];
1514 if(program->id != programid)
1515 continue;
1516 for(q=0; q<program->nb_stream_indexes; q++) {
1517 int sidx = program->stream_index[q];
1518 int ris = file_table[z].ist_index + sidx;
1519 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1520 return ris;
1521 }
1522 }
1523 }
1524
1525 return -1;
1526 }
1527
1528 /*
1529 * The following code is the main loop of the file converter
1530 */
1531 static int av_encode(AVFormatContext **output_files,
1532 int nb_output_files,
1533 AVFormatContext **input_files,
1534 int nb_input_files,
1535 AVStreamMap *stream_maps, int nb_stream_maps)
1536 {
1537 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1538 AVFormatContext *is, *os;
1539 AVCodecContext *codec, *icodec;
1540 AVOutputStream *ost, **ost_table = NULL;
1541 AVInputStream *ist, **ist_table = NULL;
1542 AVInputFile *file_table;
1543 int key;
1544 int want_sdp = 1;
1545
1546 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1547 if (!file_table)
1548 goto fail;
1549
1550 /* input stream init */
1551 j = 0;
1552 for(i=0;i<nb_input_files;i++) {
1553 is = input_files[i];
1554 file_table[i].ist_index = j;
1555 file_table[i].nb_streams = is->nb_streams;
1556 j += is->nb_streams;
1557 }
1558 nb_istreams = j;
1559
1560 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1561 if (!ist_table)
1562 goto fail;
1563
1564 for(i=0;i<nb_istreams;i++) {
1565 ist = av_mallocz(sizeof(AVInputStream));
1566 if (!ist)
1567 goto fail;
1568 ist_table[i] = ist;
1569 }
1570 j = 0;
1571 for(i=0;i<nb_input_files;i++) {
1572 is = input_files[i];
1573 for(k=0;k<is->nb_streams;k++) {
1574 ist = ist_table[j++];
1575 ist->st = is->streams[k];
1576 ist->file_index = i;
1577 ist->index = k;
1578 ist->discard = 1; /* the stream is discarded by default
1579 (changed later) */
1580
1581 if (ist->st->codec->rate_emu) {
1582 ist->start = av_gettime();
1583 ist->frame = 0;
1584 }
1585 }
1586 }
1587
1588 /* output stream init */
1589 nb_ostreams = 0;
1590 for(i=0;i<nb_output_files;i++) {
1591 os = output_files[i];
1592 if (!os->nb_streams) {
1593 fprintf(stderr, "Output file does not contain any stream\n");
1594 av_exit(1);
1595 }
1596 nb_ostreams += os->nb_streams;
1597 }
1598 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1599 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1600 av_exit(1);
1601 }
1602
1603 /* Sanity check the mapping args -- do the input files & streams exist? */
1604 for(i=0;i<nb_stream_maps;i++) {
1605 int fi = stream_maps[i].file_index;
1606 int si = stream_maps[i].stream_index;
1607
1608 if (fi < 0 || fi > nb_input_files - 1 ||
1609 si < 0 || si > file_table[fi].nb_streams - 1) {
1610 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1611 av_exit(1);
1612 }
1613 fi = stream_maps[i].sync_file_index;
1614 si = stream_maps[i].sync_stream_index;
1615 if (fi < 0 || fi > nb_input_files - 1 ||
1616 si < 0 || si > file_table[fi].nb_streams - 1) {
1617 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1618 av_exit(1);
1619 }
1620 }
1621
1622 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1623 if (!ost_table)
1624 goto fail;
1625 for(i=0;i<nb_ostreams;i++) {
1626 ost = av_mallocz(sizeof(AVOutputStream));
1627 if (!ost)
1628 goto fail;
1629 ost_table[i] = ost;
1630 }
1631
1632 n = 0;
1633 for(k=0;k<nb_output_files;k++) {
1634 os = output_files[k];
1635 for(i=0;i<os->nb_streams;i++) {
1636 int found;
1637 ost = ost_table[n++];
1638 ost->file_index = k;
1639 ost->index = i;
1640 ost->st = os->streams[i];
1641 if (nb_stream_maps > 0) {
1642 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1643 stream_maps[n-1].stream_index;
1644
1645 /* Sanity check that the stream types match */
1646 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1647 int i= ost->file_index;
1648 dump_format(output_files[i], i, output_files[i]->filename, 1);
1649 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1650 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1651 ost->file_index, ost->index);
1652 av_exit(1);
1653 }
1654
1655 } else {
1656 if(opt_programid) {
1657 found = 0;
1658 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1659 if(j != -1) {
1660 ost->source_index = j;
1661 found = 1;
1662 }
1663 } else {
1664 /* get corresponding input stream index : we select the first one with the right type */
1665 found = 0;
1666 for(j=0;j<nb_istreams;j++) {
1667 ist = ist_table[j];
1668 if (ist->discard &&
1669 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1670 ost->source_index = j;
1671 found = 1;
1672 break;
1673 }
1674 }
1675 }
1676
1677 if (!found) {
1678 if(! opt_programid) {
1679 /* try again and reuse existing stream */
1680 for(j=0;j<nb_istreams;j++) {
1681 ist = ist_table[j];
1682 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1683 ost->source_index = j;
1684 found = 1;
1685 }
1686 }
1687 }
1688 if (!found) {
1689 int i= ost->file_index;
1690 dump_format(output_files[i], i, output_files[i]->filename, 1);
1691 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1692 ost->file_index, ost->index);
1693 av_exit(1);
1694 }
1695 }
1696 }
1697 ist = ist_table[ost->source_index];
1698 ist->discard = 0;
1699 ost->sync_ist = (nb_stream_maps > 0) ?
1700 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1701 stream_maps[n-1].sync_stream_index] : ist;
1702 }
1703 }
1704
1705 /* for each output stream, we compute the right encoding parameters */
1706 for(i=0;i<nb_ostreams;i++) {
1707 ost = ost_table[i];
1708 os = output_files[ost->file_index];
1709 ist = ist_table[ost->source_index];
1710
1711 codec = ost->st->codec;
1712 icodec = ist->st->codec;
1713
1714 if (!ost->st->language[0])
1715 av_strlcpy(ost->st->language, ist->st->language,
1716 sizeof(ost->st->language));
1717
1718 ost->st->disposition = ist->st->disposition;
1719
1720 if (ost->st->stream_copy) {
1721 /* if stream_copy is selected, no need to decode or encode */
1722 codec->codec_id = icodec->codec_id;
1723 codec->codec_type = icodec->codec_type;
1724
1725 if(!codec->codec_tag){
1726 if( !os->oformat->codec_tag
1727 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1728 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1729 codec->codec_tag = icodec->codec_tag;
1730 }
1731
1732 codec->bit_rate = icodec->bit_rate;
1733 codec->extradata= icodec->extradata;
1734 codec->extradata_size= icodec->extradata_size;
1735 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1736 codec->time_base = icodec->time_base;
1737 else
1738 codec->time_base = ist->st->time_base;
1739 switch(codec->codec_type) {
1740 case CODEC_TYPE_AUDIO:
1741 if(audio_volume != 256) {
1742 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1743 av_exit(1);
1744 }
1745 codec->sample_rate = icodec->sample_rate;
1746 codec->channels = icodec->channels;
1747 codec->frame_size = icodec->frame_size;
1748 codec->block_align= icodec->block_align;
1749 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1750 codec->block_align= 0;
1751 if(codec->codec_id == CODEC_ID_AC3)
1752 codec->block_align= 0;
1753 break;
1754 case CODEC_TYPE_VIDEO:
1755 if(using_vhook) {
1756 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1757 av_exit(1);
1758 }
1759 codec->pix_fmt = icodec->pix_fmt;
1760 codec->width = icodec->width;
1761 codec->height = icodec->height;
1762 codec->has_b_frames = icodec->has_b_frames;
1763 break;
1764 case CODEC_TYPE_SUBTITLE:
1765 break;
1766 default:
1767 abort();
1768 }
1769 } else {
1770 switch(codec->codec_type) {
1771 case CODEC_TYPE_AUDIO:
1772 if (av_fifo_init(&ost->fifo, 1024))
1773 goto fail;
1774 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1775 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1776 icodec->request_channels = codec->channels;
1777 ist->decoding_needed = 1;
1778 ost->encoding_needed = 1;
1779 break;
1780 case CODEC_TYPE_VIDEO:
1781 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1782 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1783 ost->video_resample = ((codec->width != icodec->width -
1784 (frame_leftBand + frame_rightBand) +
1785 (frame_padleft + frame_padright)) ||
1786 (codec->height != icodec->height -
1787 (frame_topBand + frame_bottomBand) +
1788 (frame_padtop + frame_padbottom)) ||
1789 (codec->pix_fmt != icodec->pix_fmt));
1790 if (ost->video_crop) {
1791 ost->topBand = frame_topBand;
1792 ost->leftBand = frame_leftBand;
1793 }
1794 if (ost->video_pad) {
1795 ost->padtop = frame_padtop;
1796 ost->padleft = frame_padleft;
1797 ost->padbottom = frame_padbottom;
1798 ost->padright = frame_padright;
1799 if (!ost->video_resample) {
1800 avcodec_get_frame_defaults(&ost->pict_tmp);
1801 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1802 codec->width, codec->height))
1803 goto fail;
1804 }
1805 }
1806 if (ost->video_resample) {
1807 avcodec_get_frame_defaults(&ost->pict_tmp);
1808 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1809 codec->width, codec->height)) {
1810 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1811 av_exit(1);
1812 }
1813 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1814 ost->img_resample_ctx = sws_getContext(
1815 icodec->width - (frame_leftBand + frame_rightBand),
1816 icodec->height - (frame_topBand + frame_bottomBand),
1817 icodec->pix_fmt,
1818 codec->width - (frame_padleft + frame_padright),
1819 codec->height - (frame_padtop + frame_padbottom),
1820 codec->pix_fmt,
1821 sws_flags, NULL, NULL, NULL);
1822 if (ost->img_resample_ctx == NULL) {
1823 fprintf(stderr, "Cannot get resampling context\n");
1824 av_exit(1);
1825 }
1826 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1827 }
1828 ost->encoding_needed = 1;
1829 ist->decoding_needed = 1;
1830 break;
1831 case CODEC_TYPE_SUBTITLE:
1832 ost->encoding_needed = 1;
1833 ist->decoding_needed = 1;
1834 break;
1835 default:
1836 abort();
1837 break;
1838 }
1839 /* two pass mode */
1840 if (ost->encoding_needed &&
1841 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1842 char logfilename[1024];
1843 FILE *f;
1844 int size;
1845 char *logbuffer;
1846
1847 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1848 pass_logfilename ?
1849 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1850 if (codec->flags & CODEC_FLAG_PASS1) {
1851 f = fopen(logfilename, "w");
1852 if (!f) {
1853 perror(logfilename);
1854 av_exit(1);
1855 }
1856 ost->logfile = f;
1857 } else {
1858 /* read the log file */
1859 f = fopen(logfilename, "r");
1860 if (!f) {
1861 perror(logfilename);
1862 av_exit(1);
1863 }
1864 fseek(f, 0, SEEK_END);
1865 size = ftell(f);
1866 fseek(f, 0, SEEK_SET);
1867 logbuffer = av_malloc(size + 1);
1868 if (!logbuffer) {
1869 fprintf(stderr, "Could not allocate log buffer\n");
1870 av_exit(1);
1871 }
1872 size = fread(logbuffer, 1, size, f);
1873 fclose(f);
1874 logbuffer[size] = '\0';
1875 codec->stats_in = logbuffer;
1876 }
1877 }
1878 }
1879 if(codec->codec_type == CODEC_TYPE_VIDEO){
1880 int size= codec->width * codec->height;
1881 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1882 }
1883 }
1884
1885 if (!bit_buffer)
1886 bit_buffer = av_malloc(bit_buffer_size);
1887 if (!bit_buffer)
1888 goto fail;
1889
1890 /* dump the file output parameters - cannot be done before in case
1891 of stream copy */
1892 for(i=0;i<nb_output_files;i++) {
1893 dump_format(output_files[i], i, output_files[i]->filename, 1);
1894 }
1895
1896 /* dump the stream mapping */
1897 if (verbose >= 0) {
1898 fprintf(stderr, "Stream mapping:\n");
1899 for(i=0;i<nb_ostreams;i++) {
1900 ost = ost_table[i];
1901 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1902 ist_table[ost->source_index]->file_index,
1903 ist_table[ost->source_index]->index,
1904 ost->file_index,
1905 ost->index);
1906 if (ost->sync_ist != ist_table[ost->source_index])
1907 fprintf(stderr, " [sync #%d.%d]",
1908 ost->sync_ist->file_index,
1909 ost->sync_ist->index);
1910 fprintf(stderr, "\n");
1911 }
1912 }
1913
1914 /* open each encoder */
1915 for(i=0;i<nb_ostreams;i++) {
1916 ost = ost_table[i];
1917 if (ost->encoding_needed) {
1918 AVCodec *codec;
1919 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1920 if (!codec) {
1921 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1922 ost->file_index, ost->index);
1923 av_exit(1);
1924 }
1925 if (avcodec_open(ost->st->codec, codec) < 0) {
1926 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1927 ost->file_index, ost->index);
1928 av_exit(1);
1929 }
1930 extra_size += ost->st->codec->extradata_size;
1931 }
1932 }
1933
1934 /* open each decoder */
1935 for(i=0;i<nb_istreams;i++) {
1936 ist = ist_table[i];
1937 if (ist->decoding_needed) {
1938 AVCodec *codec;
1939 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1940 if (!codec) {
1941 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1942 ist->st->codec->codec_id, ist->file_index, ist->index);
1943 av_exit(1);
1944 }
1945 if (avcodec_open(ist->st->codec, codec) < 0) {
1946 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1947 ist->file_index, ist->index);
1948 av_exit(1);
1949 }
1950 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1951 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1952 }
1953 }
1954
1955 /* init pts */
1956 for(i=0;i<nb_istreams;i++) {
1957 ist = ist_table[i];
1958 is = input_files[ist->file_index];
1959 ist->pts = 0;
1960 ist->next_pts = AV_NOPTS_VALUE;
1961 ist->is_start = 1;
1962 }
1963
1964 /* set meta data information from input file if required */
1965 for (i=0;i<nb_meta_data_maps;i++) {
1966 AVFormatContext *out_file;
1967 AVFormatContext *in_file;
1968
1969 int out_file_index = meta_data_maps[i].out_file;
1970 int in_file_index = meta_data_maps[i].in_file;
1971 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1972 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1973 ret = AVERROR(EINVAL);
1974 goto fail;
1975 }
1976 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1977 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1978 ret = AVERROR(EINVAL);
1979 goto fail;
1980 }
1981
1982 out_file = output_files[out_file_index];
1983 in_file = input_files[in_file_index];
1984
1985 strcpy(out_file->title, in_file->title);
1986 strcpy(out_file->author, in_file->author);
1987 strcpy(out_file->copyright, in_file->copyright);
1988 strcpy(out_file->comment, in_file->comment);
1989 strcpy(out_file->album, in_file->album);
1990 out_file->year = in_file->year;
1991 out_file->track = in_file->track;
1992 strcpy(out_file->genre, in_file->genre);
1993 }
1994
1995 /* open files and write file headers */
1996 for(i=0;i<nb_output_files;i++) {
1997 os = output_files[i];
1998 if (av_write_header(os) < 0) {
1999 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
2000 ret = AVERROR(EINVAL);
2001 goto fail;
2002 }
2003 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2004 want_sdp = 0;
2005 }
2006 }
2007 if (want_sdp) {
2008 print_sdp(output_files, nb_output_files);
2009 }
2010
2011 if (!using_stdin && verbose >= 0) {
2012 fprintf(stderr, "Press [q] to stop encoding\n");
2013 url_set_interrupt_cb(decode_interrupt_cb);
2014 }
2015 term_init();
2016
2017 key = -1;
2018 timer_start = av_gettime();
2019
2020 for(; received_sigterm == 0;) {
2021 int file_index, ist_index;
2022 AVPacket pkt;
2023 double ipts_min;
2024 double opts_min;
2025
2026 redo:
2027 ipts_min= 1e100;
2028 opts_min= 1e100;
2029 /* if 'q' pressed, exits */
2030 if (!using_stdin) {
2031 if (q_pressed)
2032 break;
2033 /* read_key() returns 0 on EOF */
2034 key = read_key();
2035 if (key == 'q')
2036 break;
2037 }
2038
2039 /* select the stream that we must read now by looking at the
2040 smallest output pts */
2041 file_index = -1;
2042 for(i=0;i<nb_ostreams;i++) {
2043 double ipts, opts;
2044 ost = ost_table[i];
2045 os = output_files[ost->file_index];
2046 ist = ist_table[ost->source_index];
2047 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2048 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2049 else
2050 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2051 ipts = (double)ist->pts;
2052 if (!file_table[ist->file_index].eof_reached){
2053 if(ipts < ipts_min) {
2054 ipts_min = ipts;
2055 if(input_sync ) file_index = ist->file_index;
2056 }
2057 if(opts < opts_min) {
2058 opts_min = opts;
2059 if(!input_sync) file_index = ist->file_index;
2060 }
2061 }
2062 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2063 file_index= -1;
2064 break;
2065 }
2066 }
2067 /* if none, if is finished */
2068 if (file_index < 0) {
2069 break;
2070 }
2071
2072 /* finish if recording time exhausted */
2073 if (opts_min >= (recording_time / 1000000.0))
2074 break;
2075
2076 /* finish if limit size exhausted */
2077 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2078 break;
2079
2080 /* read a frame from it and output it in the fifo */
2081 is = input_files[file_index];
2082 if (av_read_frame(is, &pkt) < 0) {
2083 file_table[file_index].eof_reached = 1;
2084 if (opt_shortest)
2085 break;
2086 else
2087 continue;
2088 }
2089
2090 if (do_pkt_dump) {
2091 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2092 }
2093 /* the following test is needed in case new streams appear
2094 dynamically in stream : we ignore them */
2095 if (pkt.stream_index >= file_table[file_index].nb_streams)
2096 goto discard_packet;
2097 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2098 ist = ist_table[ist_index];
2099 if (ist->discard)
2100 goto discard_packet;
2101
2102 if (pkt.dts != AV_NOPTS_VALUE)
2103 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2104 if (pkt.pts != AV_NOPTS_VALUE)
2105 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2106
2107 if(input_files_ts_scale[file_index][pkt.stream_index]){
2108 if(pkt.pts != AV_NOPTS_VALUE)
2109 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2110 if(pkt.dts != AV_NOPTS_VALUE)
2111 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2112 }
2113
2114 // 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);
2115 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
2116 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2117 int64_t delta= pkt_dts - ist->next_pts;
2118 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2119 input_files_ts_offset[ist->file_index]-= delta;
2120 if (verbose > 2)
2121 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2122 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2123 if(pkt.pts != AV_NOPTS_VALUE)
2124 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2125 }
2126 }
2127
2128 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2129 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2130
2131 if (verbose >= 0)
2132 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2133 ist->file_index, ist->index);
2134
2135 av_free_packet(&pkt);
2136 goto redo;
2137 }
2138
2139 discard_packet:
2140 av_free_packet(&pkt);
2141
2142 /* dump report by using the output first video and audio streams */
2143 print_report(output_files, ost_table, nb_ostreams, 0);
2144 }
2145
2146 /* at the end of stream, we must flush the decoder buffers */
2147 for(i=0;i<nb_istreams;i++) {
2148 ist = ist_table[i];
2149 if (ist->decoding_needed) {
2150 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2151 }
2152 }
2153
2154 term_exit();
2155
2156 /* write the trailer if needed and close file */
2157 for(i=0;i<nb_output_files;i++) {
2158 os = output_files[i];
2159 av_write_trailer(os);
2160 }
2161
2162 /* dump report by using the first video and audio streams */
2163 print_report(output_files, ost_table, nb_ostreams, 1);
2164
2165 /* close each encoder */
2166 for(i=0;i<nb_ostreams;i++) {
2167 ost = ost_table[i];
2168 if (ost->encoding_needed) {
2169 av_freep(&ost->st->codec->stats_in);
2170 avcodec_close(ost->st->codec);
2171 }
2172 }
2173
2174 /* close each decoder */
2175 for(i=0;i<nb_istreams;i++) {
2176 ist = ist_table[i];
2177 if (ist->decoding_needed) {
2178 avcodec_close(ist->st->codec);
2179 }
2180 }
2181
2182 /* finished ! */
2183
2184 ret = 0;
2185 fail1:
2186 av_freep(&bit_buffer);
2187 av_free(file_table);
2188
2189 if (ist_table) {
2190 for(i=0;i<nb_istreams;i++) {
2191 ist = ist_table[i];
2192 av_free(ist);
2193 }
2194 av_free(ist_table);
2195 }
2196 if (ost_table) {
2197 for(i=0;i<nb_ostreams;i++) {
2198 ost = ost_table[i];
2199 if (ost) {
2200 if (ost->logfile) {
2201 fclose(ost->logfile);
2202 ost->logfile = NULL;
2203 }
2204 av_fifo_free(&ost->fifo); /* works even if fifo is not
2205 initialized but set to zero */
2206 av_free(ost->pict_tmp.data[0]);
2207 if (ost->video_resample)
2208 sws_freeContext(ost->img_resample_ctx);
2209 if (ost->resample)
2210 audio_resample_close(ost->resample);
2211 if (ost->reformat_ctx)
2212 av_audio_convert_free(ost->reformat_ctx);
2213 av_free(ost);
2214 }
2215 }
2216 av_free(ost_table);
2217 }
2218 return ret;
2219 fail:
2220 ret = AVERROR(ENOMEM);
2221 goto fail1;
2222 }
2223
2224 #if 0
2225 int file_read(const char *filename)
2226 {
2227 URLContext *h;
2228 unsigned char buffer[1024];
2229 int len, i;
2230
2231 if (url_open(&h, filename, O_RDONLY) < 0) {
2232 printf("could not open '%s'\n", filename);
2233 return -1;
2234 }
2235 for(;;) {
2236 len = url_read(h, buffer, sizeof(buffer));
2237 if (len <= 0)
2238 break;
2239 for(i=0;i<len;i++) putchar(buffer[i]);
2240 }
2241 url_close(h);
2242 return 0;
2243 }
2244 #endif
2245
2246 static void opt_format(const char *arg)
2247 {
2248 /* compatibility stuff for pgmyuv */
2249 if (!strcmp(arg, "pgmyuv")) {
2250 pgmyuv_compatibility_hack=1;
2251 // opt_image_format(arg);
2252 arg = "image2";
2253 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2254 }
2255
2256 file_iformat = av_find_input_format(arg);
2257 file_oformat = guess_format(arg, NULL, NULL);
2258 if (!file_iformat && !file_oformat) {
2259 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2260 av_exit(1);
2261 }
2262 }
2263
2264 static int opt_default(const char *opt, const char *arg){
2265 int type;
2266 const AVOption *o= NULL;
2267 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
2268
2269 for(type=0; type<CODEC_TYPE_NB; type++){
2270 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
2271 if(o2)
2272 o = av_set_string2(avctx_opts[type], opt, arg, 1);
2273 }
2274 if(!o)
2275 o = av_set_string2(avformat_opts, opt, arg, 1);
2276 if(!o)
2277 o = av_set_string2(sws_opts, opt, arg, 1);
2278 if(!o){
2279 if(opt[0] == 'a')
2280 o = av_set_string2(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1);
2281 else if(opt[0] == 'v')
2282 o = av_set_string2(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1);
2283 else if(opt[0] == 's')
2284 o = av_set_string2(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1);
2285 }
2286 if(!o)
2287 return -1;
2288
2289 // 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));
2290
2291 //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
2292 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
2293 opt_names[opt_name_count++]= o->name;
2294
2295 if(avctx_opts[0]->debug || avformat_opts->debug)
2296 av_log_set_level(AV_LOG_DEBUG);
2297 return 0;
2298 }
2299
2300 static void opt_video_rc_override_string(const char *arg)
2301 {
2302 video_rc_override_string = arg;
2303 }
2304
2305 static int opt_me_threshold(const char *opt, const char *arg)
2306 {
2307 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2308 return 0;
2309 }
2310
2311 static int opt_verbose(const char *opt, const char *arg)
2312 {
2313 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2314 av_log_set_level(verbose);
2315 return 0;
2316 }
2317
2318 static void opt_frame_rate(const char *arg)
2319 {
2320 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2321 fprintf(stderr, "Incorrect frame rate\n");
2322 av_exit(1);
2323 }
2324 }
2325
2326 static int opt_bitrate(const char *opt, const char *arg)
2327 {
2328 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2329
2330 opt_default(opt, arg);
2331
2332 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2333 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2334
2335 return 0;
2336 }
2337
2338 static void opt_frame_crop_top(const char *arg)
2339 {
2340 frame_topBand = atoi(arg);
2341 if (frame_topBand < 0) {
2342 fprintf(stderr, "Incorrect top crop size\n");
2343 av_exit(1);
2344 }
2345 if ((frame_topBand % 2) != 0) {
2346 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2347 av_exit(1);
2348 }
2349 if ((frame_topBand) >= frame_height){
2350 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2351 av_exit(1);
2352 }
2353 frame_height -= frame_topBand;
2354 }
2355
2356 static void opt_frame_crop_bottom(const char *arg)
2357 {
2358 frame_bottomBand = atoi(arg);
2359 if (frame_bottomBand < 0) {
2360 fprintf(stderr, "Incorrect bottom crop size\n");
2361 av_exit(1);
2362 }
2363 if ((frame_bottomBand % 2) != 0) {
2364 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2365 av_exit(1);
2366 }
2367 if ((frame_bottomBand) >= frame_height){
2368 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2369 av_exit(1);
2370 }
2371 frame_height -= frame_bottomBand;
2372 }
2373
2374 static void opt_frame_crop_left(const char *arg)
2375 {
2376 frame_leftBand = atoi(arg);
2377 if (frame_leftBand < 0) {
2378 fprintf(stderr, "Incorrect left crop size\n");
2379 av_exit(1);
2380 }
2381 if ((frame_leftBand % 2) != 0) {
2382 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2383 av_exit(1);
2384 }
2385 if ((frame_leftBand) >= frame_width){
2386 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2387 av_exit(1);
2388 }
2389 frame_width -= frame_leftBand;
2390 }
2391
2392 static void opt_frame_crop_right(const char *arg)
2393 {
2394 frame_rightBand = atoi(arg);
2395 if (frame_rightBand < 0) {
2396 fprintf(stderr, "Incorrect right crop size\n");
2397 av_exit(1);
2398 }
2399 if ((frame_rightBand % 2) != 0) {
2400 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2401 av_exit(1);
2402 }
2403 if ((frame_rightBand) >= frame_width){
2404 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2405 av_exit(1);
2406 }
2407 frame_width -= frame_rightBand;
2408 }
2409
2410 static void opt_frame_size(const char *arg)
2411 {
2412 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2413 fprintf(stderr, "Incorrect frame size\n");
2414 av_exit(1);
2415 }
2416 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2417 fprintf(stderr, "Frame size must be a multiple of 2\n");
2418 av_exit(1);
2419 }
2420 }
2421
2422
2423 #define SCALEBITS 10
2424 #define ONE_HALF (1 << (SCALEBITS - 1))
2425 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2426
2427 #define RGB_TO_Y(r, g, b) \
2428 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2429 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2430
2431 #define RGB_TO_U(r1, g1, b1, shift)\
2432 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2433 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2434
2435 #define RGB_TO_V(r1, g1, b1, shift)\
2436 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2437 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2438
2439 static void opt_pad_color(const char *arg) {
2440 /* Input is expected to be six hex digits similar to
2441 how colors are expressed in html tags (but without the #) */
2442 int rgb = strtol(arg, NULL, 16);
2443 int r,g,b;
2444
2445 r = (rgb >> 16);
2446 g = ((rgb >> 8) & 255);
2447 b = (rgb & 255);
2448
2449 padcolor[0] = RGB_TO_Y(r,g,b);
2450 padcolor[1] = RGB_TO_U(r,g,b,0);
2451 padcolor[2] = RGB_TO_V(r,g,b,0);
2452 }
2453
2454 static void opt_frame_pad_top(const char *arg)
2455 {
2456 frame_padtop = atoi(arg);
2457 if (frame_padtop < 0) {
2458 fprintf(stderr, "Incorrect top pad size\n");
2459 av_exit(1);
2460 }
2461 if ((frame_padtop % 2) != 0) {
2462 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2463 av_exit(1);
2464 }
2465 }
2466
2467 static void opt_frame_pad_bottom(const char *arg)
2468 {
2469 frame_padbottom = atoi(arg);
2470 if (frame_padbottom < 0) {
2471 fprintf(stderr, "Incorrect bottom pad size\n");
2472 av_exit(1);
2473 }
2474 if ((frame_padbottom % 2) != 0) {
2475 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2476 av_exit(1);
2477 }
2478 }
2479
2480
2481 static void opt_frame_pad_left(const char *arg)
2482 {
2483 frame_padleft = atoi(arg);
2484 if (frame_padleft < 0) {
2485 fprintf(stderr, "Incorrect left pad size\n");
2486 av_exit(1);
2487 }
2488 if ((frame_padleft % 2) != 0) {
2489 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2490 av_exit(1);
2491 }
2492 }
2493
2494
2495 static void opt_frame_pad_right(const char *arg)
2496 {
2497 frame_padright = atoi(arg);
2498 if (frame_padright < 0) {
2499 fprintf(stderr, "Incorrect right pad size\n");
2500 av_exit(1);
2501 }
2502 if ((frame_padright % 2) != 0) {
2503 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2504 av_exit(1);
2505 }
2506 }
2507
2508 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2509 {
2510 int i;
2511 char fmt_str[128];
2512 for (i=-1; i < nb_fmts; i++) {
2513 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2514 fprintf(stdout, "%s\n", fmt_str);
2515 }
2516 }
2517
2518 static void opt_frame_pix_fmt(const char *arg)
2519 {
2520 if (strcmp(arg, "list"))
2521 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2522 else {
2523 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2524 av_exit(0);
2525 }
2526 }
2527
2528 static void opt_frame_aspect_ratio(const char *arg)
2529 {
2530 int x = 0, y = 0;
2531 double ar = 0;
2532 const char *p;
2533 char *end;
2534
2535 p = strchr(arg, ':');
2536 if (p) {
2537 x = strtol(arg, &end, 10);
2538 if (end == p)
2539 y = strtol(end+1, &end, 10);
2540 if (x > 0 && y > 0)
2541 ar = (double)x / (double)y;
2542 } else
2543 ar = strtod(arg, NULL);
2544
2545 if (!ar) {
2546 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2547 av_exit(1);
2548 }
2549 frame_aspect_ratio = ar;
2550 }
2551
2552 static void opt_qscale(const char *arg)
2553 {
2554 video_qscale = atof(arg);
2555 if (video_qscale <= 0 ||
2556 video_qscale > 255) {
2557 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2558 av_exit(1);
2559 }
2560 }
2561
2562 static void opt_top_field_first(const char *arg)
2563 {
2564 top_field_first= atoi(arg);
2565 }
2566
2567 static int opt_thread_count(const char *opt, const char *arg)
2568 {
2569 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2570 #if !defined(HAVE_THREADS)
2571 if (verbose >= 0)
2572 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2573 #endif
2574 return 0;
2575 }
2576
2577 static void opt_audio_sample_fmt(const char *arg)
2578 {
2579 if (strcmp(arg, "list"))
2580 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2581 else {
2582 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2583 av_exit(0);
2584 }
2585 }
2586
2587 static int opt_audio_rate(const char *opt, const char *arg)
2588 {
2589 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2590 return 0;
2591 }
2592
2593 static int opt_audio_channels(const char *opt, const char *arg)
2594 {
2595 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2596 return 0;
2597 }
2598
2599 static void opt_video_channel(const char *arg)
2600 {
2601 video_channel = strtol(arg, NULL, 0);
2602 }
2603
2604 static void opt_video_standard(const char *arg)
2605 {
2606 video_standard = av_strdup(arg);
2607 }
2608
2609 static void opt_codec(int *pstream_copy, char **pcodec_name,
2610 int codec_type, const char *arg)
2611 {
2612 av_freep(pcodec_name);
2613 if (!strcmp(arg, "copy")) {
2614 *pstream_copy = 1;
2615 } else {
2616 *pcodec_name = av_strdup(arg);
2617 }
2618 }
2619
2620 static void opt_audio_codec(const char *arg)
2621 {
2622 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2623 }
2624
2625 static void opt_audio_tag(const char *arg)
2626 {
2627 char *tail;
2628 audio_codec_tag= strtol(arg, &tail, 0);
2629
2630 if(!tail || *tail)
2631 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2632 }
2633
2634 static void opt_video_tag(const char *arg)
2635 {
2636 char *tail;
2637 video_codec_tag= strtol(arg, &tail, 0);
2638
2639 if(!tail || *tail)
2640 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2641 }
2642
2643 #ifdef CONFIG_VHOOK
2644 static void add_frame_hooker(const char *arg)
2645 {
2646 int argc = 0;
2647 char *argv[64];
2648 int i;
2649 char *args = av_strdup(arg);
2650
2651 using_vhook = 1;
2652
2653 argv[0] = strtok(args, " ");
2654 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2655 }
2656
2657 i = frame_hook_add(argc, argv);
2658
2659 if (i != 0) {
2660 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2661 av_exit(1);
2662 }
2663 }
2664 #endif
2665
2666 static void opt_video_codec(const char *arg)
2667 {
2668 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2669 }
2670
2671 static void opt_subtitle_codec(const char *arg)
2672 {
2673 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2674 }
2675
2676 static void opt_map(const char *arg)
2677 {
2678 AVStreamMap *m;
2679 char *p;
2680
2681 m = &stream_maps[nb_stream_maps++];
2682
2683 m->file_index = strtol(arg, &p, 0);
2684 if (*p)
2685 p++;
2686
2687 m->stream_index = strtol(p, &p, 0);
2688 if (*p) {
2689 p++;
2690 m->sync_file_index = strtol(p, &p, 0);
2691 if (*p)
2692 p++;
2693 m->sync_stream_index = strtol(p, &p, 0);
2694 } else {
2695 m->sync_file_index = m->file_index;
2696 m->sync_stream_index = m->stream_index;
2697 }
2698 }
2699
2700 static void opt_map_meta_data(const char *arg)
2701 {
2702 AVMetaDataMap *m;
2703 char *p;
2704
2705 m = &meta_data_maps[nb_meta_data_maps++];
2706
2707 m->out_file = strtol(arg, &p, 0);
2708 if (*p)
2709 p++;
2710
2711 m->in_file = strtol(p, &p, 0);
2712 }
2713
2714 static void opt_input_ts_scale(const char *arg)
2715 {
2716 unsigned int stream;
2717 double scale;
2718 char *p;
2719
2720 stream = strtol(arg, &p, 0);
2721 if (*p)
2722 p++;
2723 scale= strtod(p, &p);
2724
2725 if(stream >= MAX_STREAMS)
2726 av_exit(1);
2727
2728 input_files_ts_scale[nb_input_files][stream]= scale;
2729 }
2730
2731 static int opt_recording_time(const char *opt, const char *arg)
2732 {
2733 recording_time = parse_time_or_die(opt, arg, 1);
2734 return 0;
2735 }
2736
2737 static int opt_start_time(const char *opt, const char *arg)
2738 {
2739 start_time = parse_time_or_die(opt, arg, 1);
2740 return 0;
2741 }
2742
2743 static int opt_rec_timestamp(const char *opt, const char *arg)
2744 {
2745 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2746 return 0;
2747 }
2748
2749 static int opt_input_ts_offset(const char *opt, const char *arg)
2750 {
2751 input_ts_offset = parse_time_or_die(opt, arg, 1);
2752 return 0;
2753 }
2754
2755 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2756 {
2757 const char *codec_string = encoder ? "encoder" : "decoder";
2758 AVCodec *codec;
2759
2760 if(!name)
2761 return CODEC_ID_NONE;
2762 codec = encoder ?
2763 avcodec_find_encoder_by_name(name) :
2764 avcodec_find_decoder_by_name(name);
2765 if(!codec) {
2766 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2767 av_exit(1);
2768 }
2769 if(codec->type != type) {
2770 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2771 av_exit(1);
2772 }
2773 return codec->id;
2774 }
2775
2776 static void set_context_opts(void *ctx, void *opts_ctx, int flags)
2777 {
2778 int i;
2779 for(i=0; i<opt_name_count; i++){
2780 char buf[256];
2781 const AVOption *opt;
2782 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
2783 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
2784 if(str && ((opt->flags & flags) == flags))
2785 av_set_string2(ctx, opt_names[i], str, 1);
2786 }
2787 }
2788
2789 static void opt_input_file(const char *filename)
2790 {
2791 AVFormatContext *ic;
2792 AVFormatParameters params, *ap = &params;
2793 int err, i, ret, rfps, rfps_base;
2794 int64_t timestamp;
2795
2796 if (!strcmp(filename, "-"))
2797 filename = "pipe:";
2798
2799 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2800 !strcmp(filename, "/dev/stdin");
2801
2802 /* get default parameters from command line */
2803 ic = av_alloc_format_context();
2804
2805 memset(ap, 0, sizeof(*ap));
2806 ap->prealloced_context = 1;
2807 ap->sample_rate = audio_sample_rate;
2808 ap->channels = audio_channels;
2809 ap->time_base.den = frame_rate.num;
2810 ap->time_base.num = frame_rate.den;
2811 ap->width = frame_width + frame_padleft + frame_padright;
2812 ap->height = frame_height + frame_padtop + frame_padbottom;
2813 ap->pix_fmt = frame_pix_fmt;
2814 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2815 ap->channel = video_channel;
2816 ap->standard = video_standard;
2817 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2818 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2819 if(pgmyuv_compatibility_hack)
2820 ap->video_codec_id= CODEC_ID_PGMYUV;
2821
2822 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2823
2824 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2825 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2826 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2827
2828 /* open the input file with generic libav function */
2829 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2830 if (err < 0) {
2831 print_error(filename, err);
2832 av_exit(1);
2833 }
2834 if(opt_programid) {
2835 int i;
2836 for(i=0; i<ic->nb_programs; i++)
2837 if(ic->programs[i]->id != opt_programid)
2838 ic->programs[i]->discard = AVDISCARD_ALL;
2839 }
2840
2841 ic->loop_input = loop_input;
2842
2843 /* If not enough info to get the stream parameters, we decode the
2844 first frames to get it. (used in mpeg case for example) */
2845 ret = av_find_stream_info(ic);
2846 if (ret < 0 && verbose >= 0) {
2847 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2848 av_exit(1);
2849 }
2850
2851 timestamp = start_time;
2852 /* add the stream start time */
2853 if (ic->start_time != AV_NOPTS_VALUE)
2854 timestamp += ic->start_time;
2855
2856 /* if seeking requested, we execute it */
2857 if (start_time != 0) {
2858 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2859 if (ret < 0) {
2860 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2861 filename, (double)timestamp / AV_TIME_BASE);
2862 }
2863 /* reset seek info */
2864 start_time = 0;
2865 }
2866
2867 /* update the current parameters so that they match the one of the input stream */
2868 for(i=0;i<ic->nb_streams;i++) {
2869 AVCodecContext *enc = ic->streams[i]->codec;
2870 if(thread_count>1)
2871 avcodec_thread_init(enc, thread_count);
2872 enc->thread_count= thread_count;
2873 switch(enc->codec_type) {
2874 case CODEC_TYPE_AUDIO:
2875 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2876 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2877 audio_channels = enc->channels;
2878 audio_sample_rate = enc->sample_rate;
2879 audio_sample_fmt = enc->sample_fmt;
2880 if(audio_disable)
2881 ic->streams[i]->discard= AVDISCARD_ALL;
2882 break;
2883 case CODEC_TYPE_VIDEO:
2884 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2885 frame_height = enc->height;
2886 frame_width = enc->width;
2887 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2888 frame_pix_fmt = enc->pix_fmt;
2889 rfps = ic->streams[i]->r_frame_rate.num;
2890 rfps_base = ic->streams[i]->r_frame_rate.den;
2891 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2892 if(me_threshold)
2893 enc->debug |= FF_DEBUG_MV;
2894
2895 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2896
2897 if (verbose >= 0)
2898 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2899 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2900
2901 (float)rfps / rfps_base, rfps, rfps_base);
2902 }
2903 /* update the current frame rate to match the stream frame rate */
2904 frame_rate.num = rfps;
2905 frame_rate.den = rfps_base;
2906
2907 enc->rate_emu = rate_emu;
2908 if(video_disable)
2909 ic->streams[i]->discard= AVDISCARD_ALL;
2910 else if(video_discard)
2911 ic->streams[i]->discard= video_discard;
2912 break;
2913 case CODEC_TYPE_DATA:
2914 break;
2915 case CODEC_TYPE_SUBTITLE:
2916 if(subtitle_disable)
2917 ic->streams[i]->discard = AVDISCARD_ALL;
2918 break;
2919 case CODEC_TYPE_ATTACHMENT:
2920 case CODEC_TYPE_UNKNOWN:
2921 break;
2922 default:
2923 abort();
2924 }
2925 }
2926
2927 input_files[nb_input_files] = ic;
2928 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2929 /* dump the file content */
2930 if (verbose >= 0)
2931 dump_format(ic, nb_input_files, filename, 0);
2932
2933 nb_input_files++;
2934 file_iformat = NULL;
2935 file_oformat = NULL;
2936
2937 video_channel = 0;
2938
2939 rate_emu = 0;
2940 av_freep(&video_codec_name);
2941 av_freep(&audio_codec_name);
2942 av_freep(&subtitle_codec_name);
2943 }
2944
2945 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2946 int *has_subtitle_ptr)
2947 {
2948 int has_video, has_audio, has_subtitle, i, j;
2949 AVFormatContext *ic;
2950
2951 has_video = 0;
2952 has_audio = 0;
2953 has_subtitle = 0;
2954 for(j=0;j<nb_input_files;j++) {
2955 ic = input_files[j];
2956 for(i=0;i<ic->nb_streams;i++) {
2957 AVCodecContext *enc = ic->streams[i]->codec;
2958 switch(enc->codec_type) {
2959 case CODEC_TYPE_AUDIO:
2960 has_audio = 1;
2961 break;
2962 case CODEC_TYPE_VIDEO:
2963 has_video = 1;
2964 break;
2965 case CODEC_TYPE_SUBTITLE:
2966 has_subtitle = 1;
2967 break;
2968 case CODEC_TYPE_DATA:
2969 case CODEC_TYPE_ATTACHMENT:
2970 case CODEC_TYPE_UNKNOWN:
2971 break;
2972 default:
2973 abort();
2974 }
2975 }
2976 }
2977 *has_video_ptr = has_video;
2978 *has_audio_ptr = has_audio;
2979 *has_subtitle_ptr = has_subtitle;
2980 }
2981
2982 static void new_video_stream(AVFormatContext *oc)
2983 {
2984 AVStream *st;
2985 AVCodecContext *video_enc;
2986 int codec_id;
2987
2988 st = av_new_stream(oc, oc->nb_streams);
2989 if (!st) {
2990 fprintf(stderr, "Could not alloc stream\n");
2991 av_exit(1);
2992 }
2993 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2994 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2995 video_bitstream_filters= NULL;
2996
2997 if(thread_count>1)
2998 avcodec_thread_init(st->codec, thread_count);
2999
3000 video_enc = st->codec;
3001
3002 if(video_codec_tag)
3003 video_enc->codec_tag= video_codec_tag;
3004
3005 if( (video_global_header&1)
3006 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3007 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3008 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3009 }
3010 if(video_global_header&2){
3011 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3012 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3013 }
3014
3015 if (video_stream_copy) {
3016 st->stream_copy = 1;
3017 video_enc->codec_type = CODEC_TYPE_VIDEO;
3018 } else {
3019 const char *p;
3020 int i;
3021 AVCodec *codec;
3022 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3023
3024 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3025 if (video_codec_name)
3026 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3027
3028 video_enc->codec_id = codec_id;
3029 codec = avcodec_find_encoder(codec_id);
3030
3031 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3032
3033 video_enc->time_base.den = fps.num;
3034 video_enc->time_base.num = fps.den;
3035 if(codec && codec->supported_framerates){
3036 const AVRational *p= codec->supported_framerates;
3037 const AVRational *best=NULL;
3038 AVRational best_error= (AVRational){INT_MAX, 1};
3039 for(; p->den!=0; p++){
3040 AVRational error= av_sub_q(fps, *p);
3041 if(error.num <0) error.num *= -1;
3042 if(av_cmp_q(error, best_error) < 0){
3043 best_error= error;
3044 best= p;
3045 }
3046 }
3047 video_enc->time_base.den= best->num;
3048 video_enc->time_base.num= best->den;
3049 }
3050
3051 video_enc->width = frame_width + frame_padright + frame_padleft;
3052 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3053 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3054 video_enc->pix_fmt = frame_pix_fmt;
3055
3056 if(codec && codec->pix_fmts){
3057 const enum PixelFormat *p= codec->pix_fmts;
3058 for(; *p!=-1; p++){
3059 if(*p == video_enc->pix_fmt)
3060 break;
3061 }
3062 if(*p == -1)
3063 video_enc->pix_fmt = codec->pix_fmts[0];
3064 }
3065
3066 if (intra_only)
3067 video_enc->gop_size = 0;
3068 if (video_qscale || same_quality) {
3069 video_enc->flags |= CODEC_FLAG_QSCALE;
3070 video_enc->global_quality=
3071 st->quality = FF_QP2LAMBDA * video_qscale;
3072 }
3073
3074 if(intra_matrix)
3075 video_enc->intra_matrix = intra_matrix;
3076 if(inter_matrix)
3077 video_enc->inter_matrix = inter_matrix;
3078
3079 video_enc->thread_count = thread_count;
3080 p= video_rc_override_string;
3081 for(i=0; p; i++){
3082 int start, end, q;
3083 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3084 if(e!=3){
3085 fprintf(stderr, "error parsing rc_override\n");
3086 av_exit(1);
3087 }
3088 video_enc->rc_override=
3089 av_realloc(video_enc->rc_override,
3090 sizeof(RcOverride)*(i+1));
3091 video_enc->rc_override[i].start_frame= start;
3092 video_enc->rc_override[i].end_frame = end;
3093 if(q>0){
3094 video_enc->rc_override[i].qscale= q;
3095 video_enc->rc_override[i].quality_factor= 1.0;
3096 }
3097 else{
3098 video_enc->rc_override[i].qscale= 0;
3099 video_enc->rc_override[i].quality_factor= -q/100.0;
3100 }
3101 p= strchr(p, '/');
3102 if(p) p++;
3103 }
3104 video_enc->rc_override_count=i;
3105 if (!video_enc->rc_initial_buffer_occupancy)
3106 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3107 video_enc->me_threshold= me_threshold;
3108 video_enc->intra_dc_precision= intra_dc_precision - 8;
3109
3110 if (do_psnr)
3111 video_enc->flags|= CODEC_FLAG_PSNR;
3112
3113 /* two pass mode */
3114 if (do_pass) {
3115 if (do_pass == 1) {
3116 video_enc->flags |= CODEC_FLAG_PASS1;
3117 } else {
3118 video_enc->flags |= CODEC_FLAG_PASS2;
3119 }
3120 }
3121 }
3122
3123 /* reset some key parameters */
3124 video_disable = 0;
3125 av_freep(&video_codec_name);
3126 video_stream_copy = 0;
3127 }
3128
3129 static void new_audio_stream(AVFormatContext *oc)
3130 {
3131 AVStream *st;
3132 AVCodecContext *audio_enc;
3133 int codec_id;
3134
3135 st = av_new_stream(oc, oc->nb_streams);
3136 if (!st) {
3137 fprintf(stderr, "Could not alloc stream\n");
3138 av_exit(1);
3139 }
3140 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3141
3142 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3143 audio_bitstream_filters= NULL;
3144
3145 if(thread_count>1)
3146 avcodec_thread_init(st->codec, thread_count);
3147
3148 audio_enc = st->codec;
3149 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3150
3151 if(audio_codec_tag)
3152 audio_enc->codec_tag= audio_codec_tag;
3153
3154 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3155 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3156 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3157 }
3158 if (audio_stream_copy) {
3159 st->stream_copy = 1;
3160 audio_enc->channels = audio_channels;
3161 } else {
3162 AVCodec *codec;
3163 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3164
3165 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3166
3167 if (audio_codec_name)
3168 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3169 audio_enc->codec_id = codec_id;
3170 codec = avcodec_find_encoder(codec_id);
3171
3172 if (audio_qscale > QSCALE_NONE) {
3173 audio_enc->flags |= CODEC_FLAG_QSCALE;
3174 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3175 }
3176 audio_enc->thread_count = thread_count;
3177 audio_enc->channels = audio_channels;
3178 audio_enc->sample_fmt = audio_sample_fmt;
3179
3180 if(codec && codec->sample_fmts){
3181 const enum SampleFormat *p= codec->sample_fmts;
3182 for(; *p!=-1; p++){
3183 if(*p == audio_enc->sample_fmt)
3184 break;
3185 }
3186 if(*p == -1)
3187 audio_enc->sample_fmt = codec->sample_fmts[0];
3188 }
3189 }
3190 audio_enc->sample_rate = audio_sample_rate;
3191 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3192 if (audio_language) {
3193 av_strlcpy(st->language, audio_language, sizeof(st->language));
3194 av_free(audio_language);
3195 audio_language = NULL;
3196 }
3197
3198 /* reset some key parameters */
3199 audio_disable = 0;
3200 av_freep(&audio_codec_name);
3201 audio_stream_copy = 0;
3202 }
3203
3204 static void new_subtitle_stream(AVFormatContext *oc)
3205 {
3206 AVStream *st;
3207 AVCodecContext *subtitle_enc;
3208
3209 st = av_new_stream(oc, oc->nb_streams);
3210 if (!st) {
3211 fprintf(stderr, "Could not alloc stream\n");
3212 av_exit(1);
3213 }
3214 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3215
3216 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3217 subtitle_bitstream_filters= NULL;
3218
3219 subtitle_enc = st->codec;
3220 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3221 if (subtitle_stream_copy) {
3222 st->stream_c