Auto-enable CONFIG_MDCT when needed
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavformat/framehook.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/audioconvert.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #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 #ifdef HAVE_SYS_SELECT_H
52 #include <sys/select.h>
53 #endif
54
55 #ifdef HAVE_TERMIOS_H
56 #include <fcntl.h>
57 #include <sys/ioctl.h>
58 #include <sys/time.h>
59 #include <termios.h>
60 #elif defined(HAVE_CONIO_H)
61 #include <conio.h>
62 #endif
63 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
64 #include <time.h>
65
66 #include "cmdutils.h"
67
68 #undef NDEBUG
69 #include <assert.h>
70
71 #undef exit
72
73 const char program_name[] = "FFmpeg";
74 const int program_birth_year = 2000;
75
76 /* select an input stream for an output stream */
77 typedef struct AVStreamMap {
78 int file_index;
79 int stream_index;
80 int sync_file_index;
81 int sync_stream_index;
82 } AVStreamMap;
83
84 /** select an input file for an output file */
85 typedef struct AVMetaDataMap {
86 int out_file;
87 int in_file;
88 } AVMetaDataMap;
89
90 static const OptionDef options[];
91
92 #define MAX_FILES 20
93
94 static AVFormatContext *input_files[MAX_FILES];
95 static int64_t input_files_ts_offset[MAX_FILES];
96 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
97 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
98 static int nb_input_files = 0;
99 static int nb_icodecs;
100
101 static AVFormatContext *output_files[MAX_FILES];
102 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
103 static int nb_output_files = 0;
104 static int nb_ocodecs;
105
106 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
107 static int nb_stream_maps;
108
109 static AVMetaDataMap meta_data_maps[MAX_FILES];
110 static int nb_meta_data_maps;
111
112 static AVInputFormat *file_iformat;
113 static AVOutputFormat *file_oformat;
114 static int frame_width = 0;
115 static int frame_height = 0;
116 static float frame_aspect_ratio = 0;
117 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
118 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
119 static int frame_padtop = 0;
120 static int frame_padbottom = 0;
121 static int frame_padleft = 0;
122 static int frame_padright = 0;
123 static int padcolor[3] = {16,128,128}; /* default to black */
124 static int frame_topBand = 0;
125 static int frame_bottomBand = 0;
126 static int frame_leftBand = 0;
127 static int frame_rightBand = 0;
128 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
129 static AVRational frame_rate;
130 static float video_qscale = 0;
131 static uint16_t *intra_matrix = NULL;
132 static uint16_t *inter_matrix = NULL;
133 #if 0 //experimental, (can be removed)
134 static float video_rc_qsquish=1.0;
135 static float video_rc_qmod_amp=0;
136 static int video_rc_qmod_freq=0;
137 #endif
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static int video_codec_tag = 0;
143 static int same_quality = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int loop_input = 0;
149 static int loop_output = AVFMT_NOOUTPUTLOOP;
150 static int qp_hist = 0;
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 44100;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 1;
158 static char *audio_codec_name = NULL;
159 static int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_codec_name = NULL;
164 static char *subtitle_language = NULL;
165
166 static float mux_preload= 0.5;
167 static float mux_max_delay= 0.7;
168
169 static int64_t recording_time = INT64_MAX;
170 static int64_t start_time = 0;
171 static int64_t rec_timestamp = 0;
172 static int64_t input_ts_offset = 0;
173 static int file_overwrite = 0;
174 static char *str_title = NULL;
175 static char *str_author = NULL;
176 static char *str_copyright = NULL;
177 static char *str_comment = NULL;
178 static char *str_genre = NULL;
179 static char *str_album = NULL;
180 static int do_benchmark = 0;
181 static int do_hex_dump = 0;
182 static int do_pkt_dump = 0;
183 static int do_psnr = 0;
184 static int do_pass = 0;
185 static char *pass_logfilename = NULL;
186 static int audio_stream_copy = 0;
187 static int video_stream_copy = 0;
188 static int subtitle_stream_copy = 0;
189 static int video_sync_method= -1;
190 static int audio_sync_method= 0;
191 static float audio_drift_threshold= 0.1;
192 static int copy_ts= 0;
193 static int opt_shortest = 0; //
194 static int video_global_header = 0;
195 static char *vstats_filename;
196 static FILE *vstats_file;
197 static int opt_programid = 0;
198
199 static int rate_emu = 0;
200
201 static int video_channel = 0;
202 static char *video_standard;
203
204 static int audio_volume = 256;
205
206 static int exit_on_error = 0;
207 static int using_stdin = 0;
208 static int using_vhook = 0;
209 static int verbose = 1;
210 static int thread_count= 1;
211 static int q_pressed = 0;
212 static int64_t video_size = 0;
213 static int64_t audio_size = 0;
214 static int64_t extra_size = 0;
215 static int nb_frames_dup = 0;
216 static int nb_frames_drop = 0;
217 static int input_sync;
218 static uint64_t limit_filesize = 0; //
219 static int force_fps = 0;
220
221 static int pgmyuv_compatibility_hack=0;
222 static float dts_delta_threshold = 10;
223
224 static unsigned int sws_flags = SWS_BICUBIC;
225
226 static int64_t timer_start;
227
228 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
230 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
231 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
232
233 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
234
235 struct AVInputStream;
236
237 typedef struct AVOutputStream {
238 int file_index; /* file index */
239 int index; /* stream index in the output file */
240 int source_index; /* AVInputStream index */
241 AVStream *st; /* stream in the output file */
242 int encoding_needed; /* true if encoding needed for this stream */
243 int frame_number;
244 /* input pts and corresponding output pts
245 for A/V sync */
246 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
247 struct AVInputStream *sync_ist; /* input stream to sync against */
248 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
249 /* video only */
250 int video_resample;
251 AVFrame pict_tmp; /* temporary image for resampling */
252 struct SwsContext *img_resample_ctx; /* for image resampling */
253 int resample_height;
254
255 int video_crop;
256 int topBand; /* cropping area sizes */
257 int leftBand;
258
259 int video_pad;
260 int padtop; /* padding area sizes */
261 int padbottom;
262 int padleft;
263 int padright;
264
265 /* audio only */
266 int audio_resample;
267 ReSampleContext *resample; /* for audio resampling */
268 int reformat_pair;
269 AVAudioConvert *reformat_ctx;
270 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
271 FILE *logfile;
272 } AVOutputStream;
273
274 typedef struct AVInputStream {
275 int file_index;
276 int index;
277 AVStream *st;
278 int discard; /* true if stream data should be discarded */
279 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
280 int64_t sample_index; /* current sample */
281
282 int64_t start; /* time when read started */
283 unsigned long frame; /* current frame */
284 int64_t next_pts; /* synthetic pts for cases where pkt.pts
285 is not defined */
286 int64_t pts; /* current pts */
287 int is_start; /* is 1 at the start and after a discontinuity */
288 } AVInputStream;
289
290 typedef struct AVInputFile {
291 int eof_reached; /* true if eof reached */
292 int ist_index; /* index of first stream in ist_table */
293 int buffer_size; /* current total buffer size */
294 int nb_streams; /* nb streams we are aware of */
295 } AVInputFile;
296
297 #ifdef HAVE_TERMIOS_H
298
299 /* init terminal so that we can grab keys */
300 static struct termios oldtty;
301 #endif
302
303 static void term_exit(void)
304 {
305 #ifdef HAVE_TERMIOS_H
306 tcsetattr (0, TCSANOW, &oldtty);
307 #endif
308 }
309
310 static volatile sig_atomic_t received_sigterm = 0;
311
312 static void
313 sigterm_handler(int sig)
314 {
315 received_sigterm = sig;
316 term_exit();
317 }
318
319 static void term_init(void)
320 {
321 #ifdef HAVE_TERMIOS_H
322 struct termios tty;
323
324 tcgetattr (0, &tty);
325 oldtty = tty;
326
327 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
328 |INLCR|IGNCR|ICRNL|IXON);
329 tty.c_oflag |= OPOST;
330 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
331 tty.c_cflag &= ~(CSIZE|PARENB);
332 tty.c_cflag |= CS8;
333 tty.c_cc[VMIN] = 1;
334 tty.c_cc[VTIME] = 0;
335
336 tcsetattr (0, TCSANOW, &tty);
337 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
338 #endif
339
340 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
341 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
342 /*
343 register a function to be called at normal program termination
344 */
345 atexit(term_exit);
346 #ifdef CONFIG_BEOS_NETSERVER
347 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
348 #endif
349 }
350
351 /* read a key without blocking */
352 static int read_key(void)
353 {
354 #if defined(HAVE_TERMIOS_H)
355 int n = 1;
356 unsigned char ch;
357 #ifndef CONFIG_BEOS_NETSERVER
358 struct timeval tv;
359 fd_set rfds;
360
361 FD_ZERO(&rfds);
362 FD_SET(0, &rfds);
363 tv.tv_sec = 0;
364 tv.tv_usec = 0;
365 n = select(1, &rfds, NULL, NULL, &tv);
366 #endif
367 if (n > 0) {
368 n = read(0, &ch, 1);
369 if (n == 1)
370 return ch;
371
372 return n;
373 }
374 #elif defined(HAVE_CONIO_H)
375 if(kbhit())
376 return(getch());
377 #endif
378 return -1;
379 }
380
381 static int decode_interrupt_cb(void)
382 {
383 return q_pressed || (q_pressed = read_key() == 'q');
384 }
385
386 static int av_exit(int ret)
387 {
388 int i;
389
390 /* close files */
391 for(i=0;i<nb_output_files;i++) {
392 /* maybe av_close_output_file ??? */
393 AVFormatContext *s = output_files[i];
394 int j;
395 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
396 url_fclose(s->pb);
397 for(j=0;j<s->nb_streams;j++) {
398 av_free(s->streams[j]->codec);
399 av_free(s->streams[j]);
400 }
401 av_free(s);
402 }
403 for(i=0;i<nb_input_files;i++)
404 av_close_input_file(input_files[i]);
405
406 av_free(intra_matrix);
407 av_free(inter_matrix);
408
409 if (vstats_file)
410 fclose(vstats_file);
411 av_free(vstats_filename);
412
413 av_free(opt_names);
414
415 av_free(video_codec_name);
416 av_free(audio_codec_name);
417 av_free(subtitle_codec_name);
418
419 av_free(video_standard);
420
421 #ifdef CONFIG_POWERPC_PERF
422 extern void powerpc_display_perf_report(void);
423 powerpc_display_perf_report();
424 #endif /* CONFIG_POWERPC_PERF */
425
426 if (received_sigterm) {
427 fprintf(stderr,
428 "Received signal %d: terminating.\n",
429 (int) received_sigterm);
430 exit (255);
431 }
432
433 exit(ret); /* not all OS-es handle main() return value */
434 return ret;
435 }
436
437 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
438 {
439 int i, err;
440 AVFormatContext *ic;
441 int nopts = 0;
442
443 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
444 if (err < 0)
445 return err;
446 /* copy stream format */
447 s->nb_streams = ic->nb_streams;
448 for(i=0;i<ic->nb_streams;i++) {
449 AVStream *st;
450
451 // FIXME: a more elegant solution is needed
452 st = av_mallocz(sizeof(AVStream));
453 memcpy(st, ic->streams[i], sizeof(AVStream));
454 st->codec = avcodec_alloc_context();
455 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
456 s->streams[i] = st;
457
458 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
459 st->stream_copy = 1;
460 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
461 st->stream_copy = 1;
462
463 if(!st->codec->thread_count)
464 st->codec->thread_count = 1;
465 if(st->codec->thread_count>1)
466 avcodec_thread_init(st->codec, st->codec->thread_count);
467
468 if(st->codec->flags & CODEC_FLAG_BITEXACT)
469 nopts = 1;
470 }
471
472 if (!nopts)
473 s->timestamp = av_gettime();
474
475 av_close_input_file(ic);
476 return 0;
477 }
478
479 static double
480 get_sync_ipts(const AVOutputStream *ost)
481 {
482 const AVInputStream *ist = ost->sync_ist;
483 return (double)(ist->pts - start_time)/AV_TIME_BASE;
484 }
485
486 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
487 int ret;
488
489 while(bsfc){
490 AVPacket new_pkt= *pkt;
491 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
492 &new_pkt.data, &new_pkt.size,
493 pkt->data, pkt->size,
494 pkt->flags & PKT_FLAG_KEY);
495 if(a>0){
496 av_free_packet(pkt);
497 new_pkt.destruct= av_destruct_packet;
498 } else if(a<0){
499 fprintf(stderr, "%s failed for stream %d, codec %s",
500 bsfc->filter->name, pkt->stream_index,
501 avctx->codec ? avctx->codec->name : "copy");
502 print_error("", a);
503 if (exit_on_error)
504 av_exit(1);
505 }
506 *pkt= new_pkt;
507
508 bsfc= bsfc->next;
509 }
510
511 ret= av_interleaved_write_frame(s, pkt);
512 if(ret < 0){
513 print_error("av_interleaved_write_frame()", ret);
514 av_exit(1);
515 }
516 }
517
518 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
519
520 static void do_audio_out(AVFormatContext *s,
521 AVOutputStream *ost,
522 AVInputStream *ist,
523 unsigned char *buf, int size)
524 {
525 uint8_t *buftmp;
526 static uint8_t *audio_buf = NULL;
527 static uint8_t *audio_out = NULL;
528 static uint8_t *audio_out2 = NULL;
529 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
530
531 int size_out, frame_bytes, ret;
532 AVCodecContext *enc= ost->st->codec;
533 AVCodecContext *dec= ist->st->codec;
534 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
535 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
536
537 /* SC: dynamic allocation of buffers */
538 if (!audio_buf)
539 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
540 if (!audio_out)
541 audio_out = av_malloc(audio_out_size);
542 if (!audio_buf || !audio_out)
543 return; /* Should signal an error ! */
544
545 if (enc->channels != dec->channels)
546 ost->audio_resample = 1;
547
548 if (ost->audio_resample && !ost->resample) {
549 if (dec->sample_fmt != SAMPLE_FMT_S16) {
550 fprintf(stderr, "Audio resampler only works with 16 bits per sample, patch welcome.\n");
551 av_exit(1);
552 }
553 ost->resample = audio_resample_init(enc->channels, dec->channels,
554 enc->sample_rate, dec->sample_rate);
555 if (!ost->resample) {
556 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
557 dec->channels, dec->sample_rate,
558 enc->channels, enc->sample_rate);
559 av_exit(1);
560 }
561 }
562
563 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
564 if (dec->sample_fmt!=enc->sample_fmt &&
565 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
566 if (!audio_out2)
567 audio_out2 = av_malloc(audio_out_size);
568 if (!audio_out2)
569 av_exit(1);
570 if (ost->reformat_ctx)
571 av_audio_convert_free(ost->reformat_ctx);
572 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
573 dec->sample_fmt, 1, NULL, 0);
574 if (!ost->reformat_ctx) {
575 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
576 avcodec_get_sample_fmt_name(dec->sample_fmt),
577 avcodec_get_sample_fmt_name(enc->sample_fmt));
578 av_exit(1);
579 }
580 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
581 }
582
583 if(audio_sync_method){
584 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
585 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
586 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
587 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
588
589 //FIXME resample delay
590 if(fabs(delta) > 50){
591 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
592 if(byte_delta < 0){
593 byte_delta= FFMAX(byte_delta, -size);
594 size += byte_delta;
595 buf -= byte_delta;
596 if(verbose > 2)
597 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
598 if(!size)
599 return;
600 ist->is_start=0;
601 }else{
602 static uint8_t *input_tmp= NULL;
603 input_tmp= av_realloc(input_tmp, byte_delta + size);
604
605 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
606 ist->is_start=0;
607 else
608 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
609
610 memset(input_tmp, 0, byte_delta);
611 memcpy(input_tmp + byte_delta, buf, size);
612 buf= input_tmp;
613 size += byte_delta;
614 if(verbose > 2)
615 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
616 }
617 }else if(audio_sync_method>1){
618 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
619 assert(ost->audio_resample);
620 if(verbose > 2)
621 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
622 // 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));
623 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
624 }
625 }
626 }else
627 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
628 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
629
630 if (ost->audio_resample) {
631 buftmp = audio_buf;
632 size_out = audio_resample(ost->resample,
633 (short *)buftmp, (short *)buf,
634 size / (ist->st->codec->channels * isize));
635 size_out = size_out * enc->channels * osize;
636 } else {
637 buftmp = buf;
638 size_out = size;
639 }
640
641 if (dec->sample_fmt!=enc->sample_fmt) {
642 const void *ibuf[6]= {buftmp};
643 void *obuf[6]= {audio_out2};
644 int istride[6]= {isize};
645 int ostride[6]= {osize};
646 int len= size_out/istride[0];
647 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
648 printf("av_audio_convert() failed\n");
649 if (exit_on_error)
650 av_exit(1);
651 return;
652 }
653 buftmp = audio_out2;
654 size_out = len*osize;
655 }
656
657 /* now encode as many frames as possible */
658 if (enc->frame_size > 1) {
659 /* output resampled raw samples */
660 if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
661 fprintf(stderr, "av_fifo_realloc2() failed\n");
662 av_exit(1);
663 }
664 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
665
666 frame_bytes = enc->frame_size * osize * enc->channels;
667
668 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
669 AVPacket pkt;
670 av_init_packet(&pkt);
671
672 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
673
674 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
675
676 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
677 (short *)audio_buf);
678 audio_size += ret;
679 pkt.stream_index= ost->index;
680 pkt.data= audio_out;
681 pkt.size= ret;
682 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
683 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
684 pkt.flags |= PKT_FLAG_KEY;
685 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
686
687 ost->sync_opts += enc->frame_size;
688 }
689 } else {
690 AVPacket pkt;
691 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
692 av_init_packet(&pkt);
693
694 ost->sync_opts += size_out / (osize * enc->channels);
695
696 /* output a pcm frame */
697 /* determine the size of the coded buffer */
698 size_out /= osize;
699 if (coded_bps)
700 size_out *= coded_bps;
701
702 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
703 ret = avcodec_encode_audio(enc, audio_out, size_out,
704 (short *)buftmp);
705 audio_size += ret;
706 pkt.stream_index= ost->index;
707 pkt.data= audio_out;
708 pkt.size= ret;
709 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
710 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
711 pkt.flags |= PKT_FLAG_KEY;
712 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
713 }
714 }
715
716 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
717 {
718 AVCodecContext *dec;
719 AVPicture *picture2;
720 AVPicture picture_tmp;
721 uint8_t *buf = 0;
722
723 dec = ist->st->codec;
724
725 /* deinterlace : must be done before any resize */
726 if (do_deinterlace || using_vhook) {
727 int size;
728
729 /* create temporary picture */
730 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
731 buf = av_malloc(size);
732 if (!buf)
733 return;
734
735 picture2 = &picture_tmp;
736 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
737
738 if (do_deinterlace){
739 if(avpicture_deinterlace(picture2, picture,
740 dec->pix_fmt, dec->width, dec->height) < 0) {
741 /* if error, do not deinterlace */
742 fprintf(stderr, "Deinterlacing failed\n");
743 av_free(buf);
744 buf = NULL;
745 picture2 = picture;
746 }
747 } else {
748 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
749 }
750 } else {
751 picture2 = picture;
752 }
753
754 if (ENABLE_VHOOK)
755 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
756 1000000 * ist->pts / AV_TIME_BASE);
757
758 if (picture != picture2)
759 *picture = *picture2;
760 *bufp = buf;
761 }
762
763 /* we begin to correct av delay at this threshold */
764 #define AV_DELAY_MAX 0.100
765
766 static void do_subtitle_out(AVFormatContext *s,
767 AVOutputStream *ost,
768 AVInputStream *ist,
769 AVSubtitle *sub,
770 int64_t pts)
771 {
772 static uint8_t *subtitle_out = NULL;
773 int subtitle_out_max_size = 65536;
774 int subtitle_out_size, nb, i;
775 AVCodecContext *enc;
776 AVPacket pkt;
777
778 if (pts == AV_NOPTS_VALUE) {
779 fprintf(stderr, "Subtitle packets must have a pts\n");
780 if (exit_on_error)
781 av_exit(1);
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 if (exit_on_error)
876 av_exit(1);
877 return;
878 }
879 formatted_picture = &picture_crop_temp;
880 } else {
881 formatted_picture = in_picture;
882 }
883
884 final_picture = formatted_picture;
885 padding_src = formatted_picture;
886 resampling_dst = &ost->pict_tmp;
887 if (ost->video_pad) {
888 final_picture = &ost->pict_tmp;
889 if (ost->video_resample) {
890 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
891 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
892 if (exit_on_error)
893 av_exit(1);
894 return;
895 }
896 resampling_dst = &picture_pad_temp;
897 }
898 }
899
900 if (ost->video_resample) {
901 padding_src = NULL;
902 final_picture = &ost->pict_tmp;
903 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
904 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
905 }
906
907 if (ost->video_pad) {
908 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
909 enc->height, enc->width, enc->pix_fmt,
910 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
911 }
912
913 /* duplicates frame if needed */
914 for(i=0;i<nb_frames;i++) {
915 AVPacket pkt;
916 av_init_packet(&pkt);
917 pkt.stream_index= ost->index;
918
919 if (s->oformat->flags & AVFMT_RAWPICTURE) {
920 /* raw pictures are written as AVPicture structure to
921 avoid any copies. We support temorarily the older
922 method. */
923 AVFrame* old_frame = enc->coded_frame;
924 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
925 pkt.data= (uint8_t *)final_picture;
926 pkt.size= sizeof(AVPicture);
927 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
928 pkt.flags |= PKT_FLAG_KEY;
929
930 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
931 enc->coded_frame = old_frame;
932 } else {
933 AVFrame big_picture;
934
935 big_picture= *final_picture;
936 /* better than nothing: use input picture interlaced
937 settings */
938 big_picture.interlaced_frame = in_picture->interlaced_frame;
939 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
940 if(top_field_first == -1)
941 big_picture.top_field_first = in_picture->top_field_first;
942 else
943 big_picture.top_field_first = top_field_first;
944 }
945
946 /* handles sameq here. This is not correct because it may
947 not be a global option */
948 if (same_quality) {
949 big_picture.quality = ist->st->quality;
950 }else
951 big_picture.quality = ost->st->quality;
952 if(!me_threshold)
953 big_picture.pict_type = 0;
954 // big_picture.pts = AV_NOPTS_VALUE;
955 big_picture.pts= ost->sync_opts;
956 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
957 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
958 ret = avcodec_encode_video(enc,
959 bit_buffer, bit_buffer_size,
960 &big_picture);
961 if (ret == -1) {
962 fprintf(stderr, "Video encoding failed\n");
963 av_exit(1);
964 }
965 //enc->frame_number = enc->real_pict_num;
966 if(ret>0){
967 pkt.data= bit_buffer;
968 pkt.size= ret;
969 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
970 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
971 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
972 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
973 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
974
975 if(enc->coded_frame->key_frame)
976 pkt.flags |= PKT_FLAG_KEY;
977 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
978 *frame_size = ret;
979 video_size += ret;
980 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
981 // enc->frame_number-1, enc->real_pict_num, ret,
982 // enc->pict_type);
983 /* if two pass, output log */
984 if (ost->logfile && enc->stats_out) {
985 fprintf(ost->logfile, "%s", enc->stats_out);
986 }
987 }
988 }
989 ost->sync_opts++;
990 ost->frame_number++;
991 }
992 }
993
994 static double psnr(double d){
995 return -10.0*log(d)/log(10.0);
996 }
997
998 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
999 int frame_size)
1000 {
1001 AVCodecContext *enc;
1002 int frame_number;
1003 double ti1, bitrate, avg_bitrate;
1004
1005 /* this is executed just the first time do_video_stats is called */
1006 if (!vstats_file) {
1007 vstats_file = fopen(vstats_filename, "w");
1008 if (!vstats_file) {
1009 perror("fopen");
1010 av_exit(1);
1011 }
1012 }
1013
1014 enc = ost->st->codec;
1015 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1016 frame_number = ost->frame_number;
1017 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1018 if (enc->flags&CODEC_FLAG_PSNR)
1019 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1020
1021 fprintf(vstats_file,"f_size= %6d ", frame_size);
1022 /* compute pts value */
1023 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1024 if (ti1 < 0.01)
1025 ti1 = 0.01;
1026
1027 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1028 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1029 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1030 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1031 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1032 }
1033 }
1034
1035 static void print_report(AVFormatContext **output_files,
1036 AVOutputStream **ost_table, int nb_ostreams,
1037 int is_last_report)
1038 {
1039 char buf[1024];
1040 AVOutputStream *ost;
1041 AVFormatContext *oc, *os;
1042 int64_t total_size;
1043 AVCodecContext *enc;
1044 int frame_number, vid, i;
1045 double bitrate, ti1, pts;
1046 static int64_t last_time = -1;
1047 static int qp_histogram[52];
1048
1049 if (!is_last_report) {
1050 int64_t cur_time;
1051 /* display the report every 0.5 seconds */
1052 cur_time = av_gettime();
1053 if (last_time == -1) {
1054 last_time = cur_time;
1055 return;
1056 }
1057 if ((cur_time - last_time) < 500000)
1058 return;
1059 last_time = cur_time;
1060 }
1061
1062
1063 oc = output_files[0];
1064
1065 total_size = url_fsize(oc->pb);
1066 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1067 total_size= url_ftell(oc->pb);
1068
1069 buf[0] = '\0';
1070 ti1 = 1e10;
1071 vid = 0;
1072 for(i=0;i<nb_ostreams;i++) {
1073 ost = ost_table[i];
1074 os = output_files[ost->file_index];
1075 enc = ost->st->codec;
1076 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1077 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1078 !ost->st->stream_copy ?
1079 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1080 }
1081 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1082 float t = (av_gettime()-timer_start) / 1000000.0;
1083
1084 frame_number = ost->frame_number;
1085 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1086 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1087 !ost->st->stream_copy ?
1088 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1089 if(is_last_report)
1090 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1091 if(qp_hist){
1092 int j;
1093 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1094 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1095 qp_histogram[qp]++;
1096 for(j=0; j<32; j++)
1097 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1098 }
1099 if (enc->flags&CODEC_FLAG_PSNR){
1100 int j;
1101 double error, error_sum=0;
1102 double scale, scale_sum=0;
1103 char type[3]= {'Y','U','V'};
1104 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1105 for(j=0; j<3; j++){
1106 if(is_last_report){
1107 error= enc->error[j];
1108 scale= enc->width*enc->height*255.0*255.0*frame_number;
1109 }else{
1110 error= enc->coded_frame->error[j];
1111 scale= enc->width*enc->height*255.0*255.0;
1112 }
1113 if(j) scale/=4;
1114 error_sum += error;
1115 scale_sum += scale;
1116 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1117 }
1118 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1119 }
1120 vid = 1;
1121 }
1122 /* compute min output value */
1123 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1124 if ((pts < ti1) && (pts > 0))
1125 ti1 = pts;
1126 }
1127 if (ti1 < 0.01)
1128 ti1 = 0.01;
1129
1130 if (verbose || is_last_report) {
1131 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1132
1133 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1134 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1135 (double)total_size / 1024, ti1, bitrate);
1136
1137 if (verbose > 1)
1138 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1139 nb_frames_dup, nb_frames_drop);
1140
1141 if (verbose >= 0)
1142 fprintf(stderr, "%s \r", buf);
1143
1144 fflush(stderr);
1145 }
1146
1147 if (is_last_report && verbose >= 0){
1148 int64_t raw= audio_size + video_size + extra_size;
1149 fprintf(stderr, "\n");
1150 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1151 video_size/1024.0,
1152 audio_size/1024.0,
1153 extra_size/1024.0,
1154 100.0*(total_size - raw)/raw
1155 );
1156 }
1157 }
1158
1159 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1160 static int output_packet(AVInputStream *ist, int ist_index,
1161 AVOutputStream **ost_table, int nb_ostreams,
1162 const AVPacket *pkt)
1163 {
1164 AVFormatContext *os;
1165 AVOutputStream *ost;
1166 uint8_t *ptr;
1167 int len, ret, i;
1168 uint8_t *data_buf;
1169 int data_size, got_picture;
1170 AVFrame picture;
1171 void *buffer_to_free;
1172 static unsigned int samples_size= 0;
1173 static short *samples= NULL;
1174 AVSubtitle subtitle, *subtitle_to_free;
1175 int got_subtitle;
1176
1177 if(ist->next_pts == AV_NOPTS_VALUE)
1178 ist->next_pts= ist->pts;
1179
1180 if (pkt == NULL) {
1181 /* EOF handling */
1182 ptr = NULL;
1183 len = 0;
1184 goto handle_eof;
1185 }
1186
1187 if(pkt->dts != AV_NOPTS_VALUE)
1188 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1189
1190 len = pkt->size;
1191 ptr = pkt->data;
1192
1193 //while we have more to decode or while the decoder did output something on EOF
1194 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1195 handle_eof:
1196 ist->pts= ist->next_pts;
1197
1198 if(len && len != pkt->size && verbose>0)
1199 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1200
1201 /* decode the packet if needed */
1202 data_buf = NULL; /* fail safe */
1203 data_size = 0;
1204 subtitle_to_free = NULL;
1205 if (ist->decoding_needed) {
1206 switch(ist->st->codec->codec_type) {
1207 case CODEC_TYPE_AUDIO:{
1208 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1209 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1210 av_free(samples);
1211 samples= av_malloc(samples_size);
1212 }
1213 data_size= samples_size;
1214 /* XXX: could avoid copy if PCM 16 bits with same
1215 endianness as CPU */
1216 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1217 ptr, len);
1218 if (ret < 0)
1219 goto fail_decode;
1220 ptr += ret;
1221 len -= ret;
1222 /* Some bug in mpeg audio decoder gives */
1223 /* data_size < 0, it seems they are overflows */
1224 if (data_size <= 0) {
1225 /* no audio frame */
1226 continue;
1227 }
1228 data_buf = (uint8_t *)samples;
1229 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1230 (ist->st->codec->sample_rate * ist->st->codec->channels);
1231 break;}
1232 case CODEC_TYPE_VIDEO:
1233 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1234 /* XXX: allocate picture correctly */
1235 avcodec_get_frame_defaults(&picture);
1236
1237 ret = avcodec_decode_video(ist->st->codec,
1238 &picture, &got_picture, ptr, len);
1239 ist->st->quality= picture.quality;
1240 if (ret < 0)
1241 goto fail_decode;
1242 if (!got_picture) {
1243 /* no picture yet */
1244 goto discard_packet;
1245 }
1246 if (ist->st->codec->time_base.num != 0) {
1247 ist->next_pts += ((int64_t)AV_TIME_BASE *
1248 ist->st->codec->time_base.num) /
1249 ist->st->codec->time_base.den;
1250 }
1251 len = 0;
1252 break;
1253 case CODEC_TYPE_SUBTITLE:
1254 ret = avcodec_decode_subtitle(ist->st->codec,
1255 &subtitle, &got_subtitle, ptr, len);
1256 if (ret < 0)
1257 goto fail_decode;
1258 if (!got_subtitle) {
1259 goto discard_packet;
1260 }
1261 subtitle_to_free = &subtitle;
1262 len = 0;
1263 break;
1264 default:
1265 goto fail_decode;
1266 }
1267 } else {
1268 switch(ist->st->codec->codec_type) {
1269 case CODEC_TYPE_AUDIO:
1270 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1271 ist->st->codec->sample_rate;
1272 break;
1273 case CODEC_TYPE_VIDEO:
1274 if (ist->st->codec->time_base.num != 0) {
1275 ist->next_pts += ((int64_t)AV_TIME_BASE *
1276 ist->st->codec->time_base.num) /
1277 ist->st->codec->time_base.den;
1278 }
1279 break;
1280 }
1281 data_buf = ptr;
1282 data_size = len;
1283 ret = len;
1284 len = 0;
1285 }
1286
1287 buffer_to_free = NULL;
1288 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1289 pre_process_video_frame(ist, (AVPicture *)&picture,
1290 &buffer_to_free);
1291 }
1292
1293 // preprocess audio (volume)
1294 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1295 if (audio_volume != 256) {
1296 short *volp;
1297 volp = samples;
1298 for(i=0;i<(data_size / sizeof(short));i++) {
1299 int v = ((*volp) * audio_volume + 128) >> 8;
1300 if (v < -32768) v = -32768;
1301 if (v > 32767) v = 32767;
1302 *volp++ = v;
1303 }
1304 }
1305 }
1306
1307 /* frame rate emulation */
1308 if (ist->st->codec->rate_emu) {
1309 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1310 int64_t now = av_gettime() - ist->start;
1311 if (pts > now)
1312 usleep(pts - now);
1313
1314 ist->frame++;
1315 }
1316
1317 /* if output time reached then transcode raw format,
1318 encode packets and output them */
1319 if (start_time == 0 || ist->pts >= start_time)
1320 for(i=0;i<nb_ostreams;i++) {
1321 int frame_size;
1322
1323 ost = ost_table[i];
1324 if (ost->source_index == ist_index) {
1325 os = output_files[ost->file_index];
1326
1327 #if 0
1328 printf("%d: got pts=%0.3f %0.3f\n", i,
1329 (double)pkt->pts / AV_TIME_BASE,
1330 ((double)ist->pts / AV_TIME_BASE) -
1331 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1332 #endif
1333 /* set the input output pts pairs */
1334 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1335
1336 if (ost->encoding_needed) {
1337 switch(ost->st->codec->codec_type) {
1338 case CODEC_TYPE_AUDIO:
1339 do_audio_out(os, ost, ist, data_buf, data_size);
1340 break;
1341 case CODEC_TYPE_VIDEO:
1342 do_video_out(os, ost, ist, &picture, &frame_size);
1343 if (vstats_filename && frame_size)
1344 do_video_stats(os, ost, frame_size);
1345 break;
1346 case CODEC_TYPE_SUBTITLE:
1347 do_subtitle_out(os, ost, ist, &subtitle,
1348 pkt->pts);
1349 break;
1350 default:
1351 abort();
1352 }
1353 } else {
1354 AVFrame avframe; //FIXME/XXX remove this
1355 AVPacket opkt;
1356 av_init_packet(&opkt);
1357
1358 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1359 continue;
1360
1361 /* no reencoding needed : output the packet directly */
1362 /* force the input stream PTS */
1363
1364 avcodec_get_frame_defaults(&avframe);
1365 ost->st->codec->coded_frame= &avframe;
1366 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1367
1368 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1369 audio_size += data_size;
1370 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1371 video_size += data_size;
1372 ost->sync_opts++;
1373 }
1374
1375 opkt.stream_index= ost->index;
1376 if(pkt->pts != AV_NOPTS_VALUE)
1377 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1378 else
1379 opkt.pts= AV_NOPTS_VALUE;
1380
1381 if (pkt->dts == AV_NOPTS_VALUE)
1382 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1383 else
1384 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1385
1386 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1387 opkt.flags= pkt->flags;
1388
1389 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1390 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1391 opkt.destruct= av_destruct_packet;
1392
1393 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1394 ost->st->codec->frame_number++;
1395 ost->frame_number++;
1396 av_free_packet(&opkt);
1397 }
1398 }
1399 }
1400 av_free(buffer_to_free);
1401 /* XXX: allocate the subtitles in the codec ? */
1402 if (subtitle_to_free) {
1403 if (subtitle_to_free->rects != NULL) {
1404 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1405 av_free(subtitle_to_free->rects[i].bitmap);
1406 av_free(subtitle_to_free->rects[i].rgba_palette);
1407 }
1408 av_freep(&subtitle_to_free->rects);
1409 }
1410 subtitle_to_free->num_rects = 0;
1411 subtitle_to_free = NULL;
1412 }
1413 }
1414 discard_packet:
1415 if (pkt == NULL) {
1416 /* EOF handling */
1417
1418 for(i=0;i<nb_ostreams;i++) {
1419 ost = ost_table[i];
1420 if (ost->source_index == ist_index) {
1421 AVCodecContext *enc= ost->st->codec;
1422 os = output_files[ost->file_index];
1423
1424 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1425 continue;
1426 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1427 continue;
1428
1429 if (ost->encoding_needed) {
1430 for(;;) {
1431 AVPacket pkt;
1432 int fifo_bytes;
1433 av_init_packet(&pkt);
1434 pkt.stream_index= ost->index;
1435
1436 switch(ost->st->codec->codec_type) {
1437 case CODEC_TYPE_AUDIO:
1438 fifo_bytes = av_fifo_size(&ost->fifo);
1439 ret = 0;
1440 /* encode any samples remaining in fifo */
1441 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1442 int fs_tmp = enc->frame_size;
1443 enc->frame_size = fifo_bytes / (2 * enc->channels);
1444 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1445 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1446 enc->frame_size = fs_tmp;
1447 }
1448 if(ret <= 0) {
1449 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1450 }
1451 audio_size += ret;
1452 pkt.flags |= PKT_FLAG_KEY;
1453 break;
1454 case CODEC_TYPE_VIDEO:
1455 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1456 video_size += ret;
1457 if(enc->coded_frame && enc->coded_frame->key_frame)
1458 pkt.flags |= PKT_FLAG_KEY;
1459 if (ost->logfile && enc->stats_out) {
1460 fprintf(ost->logfile, "%s", enc->stats_out);
1461 }
1462 break;
1463 default:
1464 ret=-1;
1465 }
1466
1467 if(ret<=0)
1468 break;
1469 pkt.data= bit_buffer;
1470 pkt.size= ret;
1471 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1472 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1473 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1474 }
1475 }
1476 }
1477 }
1478 }
1479
1480 return 0;
1481 fail_decode:
1482 return -1;
1483 }
1484
1485 static void print_sdp(AVFormatContext **avc, int n)
1486 {
1487 char sdp[2048];
1488
1489 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1490 printf("SDP:\n%s\n", sdp);
1491 }
1492
1493 static int stream_index_from_inputs(AVFormatContext **input_files,
1494 int nb_input_files,
1495 AVInputFile *file_table,
1496 AVInputStream **ist_table,
1497 enum CodecType type,
1498 int programid)
1499 {
1500 int p, q, z;
1501 for(z=0; z<nb_input_files; z++) {
1502 AVFormatContext *ic = input_files[z];
1503 for(p=0; p<ic->nb_programs; p++) {
1504 AVProgram *program = ic->programs[p];
1505 if(program->id != programid)
1506 continue;
1507 for(q=0; q<program->nb_stream_indexes; q++) {
1508 int sidx = program->stream_index[q];
1509 int ris = file_table[z].ist_index + sidx;
1510 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1511 return ris;
1512 }
1513 }
1514 }
1515
1516 return -1;
1517 }
1518
1519 /*
1520 * The following code is the main loop of the file converter
1521 */
1522 static int av_encode(AVFormatContext **output_files,
1523 int nb_output_files,
1524 AVFormatContext **input_files,
1525 int nb_input_files,
1526 AVStreamMap *stream_maps, int nb_stream_maps)
1527 {
1528 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1529 AVFormatContext *is, *os;
1530 AVCodecContext *codec, *icodec;
1531 AVOutputStream *ost, **ost_table = NULL;
1532 AVInputStream *ist, **ist_table = NULL;
1533 AVInputFile *file_table;
1534 int key;
1535 int want_sdp = 1;
1536
1537 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1538 if (!file_table)
1539 goto fail;
1540
1541 /* input stream init */
1542 j = 0;
1543 for(i=0;i<nb_input_files;i++) {
1544 is = input_files[i];
1545 file_table[i].ist_index = j;
1546 file_table[i].nb_streams = is->nb_streams;
1547 j += is->nb_streams;
1548 }
1549 nb_istreams = j;
1550
1551 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1552 if (!ist_table)
1553 goto fail;
1554
1555 for(i=0;i<nb_istreams;i++) {
1556 ist = av_mallocz(sizeof(AVInputStream));
1557 if (!ist)
1558 goto fail;
1559 ist_table[i] = ist;
1560 }
1561 j = 0;
1562 for(i=0;i<nb_input_files;i++) {
1563 is = input_files[i];
1564 for(k=0;k<is->nb_streams;k++) {
1565 ist = ist_table[j++];
1566 ist->st = is->streams[k];
1567 ist->file_index = i;
1568 ist->index = k;
1569 ist->discard = 1; /* the stream is discarded by default
1570 (changed later) */
1571
1572 if (ist->st->codec->rate_emu) {
1573 ist->start = av_gettime();
1574 ist->frame = 0;
1575 }
1576 }
1577 }
1578
1579 /* output stream init */
1580 nb_ostreams = 0;
1581 for(i=0;i<nb_output_files;i++) {
1582 os = output_files[i];
1583 if (!os->nb_streams) {
1584 fprintf(stderr, "Output file does not contain any stream\n");
1585 av_exit(1);
1586 }
1587 nb_ostreams += os->nb_streams;
1588 }
1589 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1590 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1591 av_exit(1);
1592 }
1593
1594 /* Sanity check the mapping args -- do the input files & streams exist? */
1595 for(i=0;i<nb_stream_maps;i++) {
1596 int fi = stream_maps[i].file_index;
1597 int si = stream_maps[i].stream_index;
1598
1599 if (fi < 0 || fi > nb_input_files - 1 ||
1600 si < 0 || si > file_table[fi].nb_streams - 1) {
1601 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1602 av_exit(1);
1603 }
1604 fi = stream_maps[i].sync_file_index;
1605 si = stream_maps[i].sync_stream_index;
1606 if (fi < 0 || fi > nb_input_files - 1 ||
1607 si < 0 || si > file_table[fi].nb_streams - 1) {
1608 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1609 av_exit(1);
1610 }
1611 }
1612
1613 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1614 if (!ost_table)
1615 goto fail;
1616 for(i=0;i<nb_ostreams;i++) {
1617 ost = av_mallocz(sizeof(AVOutputStream));
1618 if (!ost)
1619 goto fail;
1620 ost_table[i] = ost;
1621 }
1622
1623 n = 0;
1624 for(k=0;k<nb_output_files;k++) {
1625 os = output_files[k];
1626 for(i=0;i<os->nb_streams;i++,n++) {
1627 int found;
1628 ost = ost_table[n];
1629 ost->file_index = k;
1630 ost->index = i;
1631 ost->st = os->streams[i];
1632 if (nb_stream_maps > 0) {
1633 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1634 stream_maps[n].stream_index;
1635
1636 /* Sanity check that the stream types match */
1637 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1638 int i= ost->file_index;
1639 dump_format(output_files[i], i, output_files[i]->filename, 1);
1640 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1641 stream_maps[n].file_index, stream_maps[n].stream_index,
1642 ost->file_index, ost->index);
1643 av_exit(1);
1644 }
1645
1646 } else {
1647 if(opt_programid) {
1648 found = 0;
1649 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1650 if(j != -1) {
1651 ost->source_index = j;
1652 found = 1;
1653 }
1654 } else {
1655 /* get corresponding input stream index : we select the first one with the right type */
1656 found = 0;
1657 for(j=0;j<nb_istreams;j++) {
1658 ist = ist_table[j];
1659 if (ist->discard &&
1660 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1661 ost->source_index = j;
1662 found = 1;
1663 break;
1664 }
1665 }
1666 }
1667
1668 if (!found) {
1669 if(! opt_programid) {
1670 /* try again and reuse existing stream */
1671 for(j=0;j<nb_istreams;j++) {
1672 ist = ist_table[j];
1673 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1674 ost->source_index = j;
1675 found = 1;
1676 }
1677 }
1678 }
1679 if (!found) {
1680 int i= ost->file_index;
1681 dump_format(output_files[i], i, output_files[i]->filename, 1);
1682 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1683 ost->file_index, ost->index);
1684 av_exit(1);
1685 }
1686 }
1687 }
1688 ist = ist_table[ost->source_index];
1689 ist->discard = 0;
1690 ost->sync_ist = (nb_stream_maps > 0) ?
1691 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1692 stream_maps[n].sync_stream_index] : ist;
1693 }
1694 }
1695
1696 /* for each output stream, we compute the right encoding parameters */
1697 for(i=0;i<nb_ostreams;i++) {
1698 ost = ost_table[i];
1699 os = output_files[ost->file_index];
1700 ist = ist_table[ost->source_index];
1701
1702 codec = ost->st->codec;
1703 icodec = ist->st->codec;
1704
1705 if (!ost->st->language[0])
1706 av_strlcpy(ost->st->language, ist->st->language,
1707 sizeof(ost->st->language));
1708
1709 ost->st->disposition = ist->st->disposition;
1710
1711 if (ost->st->stream_copy) {
1712 /* if stream_copy is selected, no need to decode or encode */
1713 codec->codec_id = icodec->codec_id;
1714 codec->codec_type = icodec->codec_type;
1715
1716 if(!codec->codec_tag){
1717 if( !os->oformat->codec_tag
1718 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1719 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1720 codec->codec_tag = icodec->codec_tag;
1721 }
1722
1723 codec->bit_rate = icodec->bit_rate;
1724 codec->extradata= icodec->extradata;
1725 codec->extradata_size= icodec->extradata_size;
1726 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1727 codec->time_base = icodec->time_base;
1728 else
1729 codec->time_base = ist->st->time_base;
1730 switch(codec->codec_type) {
1731 case CODEC_TYPE_AUDIO:
1732 if(audio_volume != 256) {
1733 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1734 av_exit(1);
1735 }
1736 codec->sample_rate = icodec->sample_rate;
1737 codec->channels = icodec->channels;
1738 codec->frame_size = icodec->frame_size;
1739 codec->block_align= icodec->block_align;
1740 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1741 codec->block_align= 0;
1742 if(codec->codec_id == CODEC_ID_AC3)
1743 codec->block_align= 0;
1744 break;
1745 case CODEC_TYPE_VIDEO:
1746 if(using_vhook) {
1747 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1748 av_exit(1);
1749 }
1750 codec->pix_fmt = icodec->pix_fmt;
1751 codec->width = icodec->width;
1752 codec->height = icodec->height;
1753 codec->has_b_frames = icodec->has_b_frames;
1754 break;
1755 case CODEC_TYPE_SUBTITLE:
1756 break;
1757 default:
1758 abort();
1759 }
1760 } else {
1761 switch(codec->codec_type) {
1762 case CODEC_TYPE_AUDIO:
1763 if (av_fifo_init(&ost->fifo, 1024))
1764 goto fail;
1765 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1766 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1767 icodec->request_channels = codec->channels;
1768 ist->decoding_needed = 1;
1769 ost->encoding_needed = 1;
1770 break;
1771 case CODEC_TYPE_VIDEO:
1772 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1773 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1774 ost->video_resample = ((codec->width != icodec->width -
1775 (frame_leftBand + frame_rightBand) +
1776 (frame_padleft + frame_padright)) ||
1777 (codec->height != icodec->height -
1778 (frame_topBand + frame_bottomBand) +
1779 (frame_padtop + frame_padbottom)) ||
1780 (codec->pix_fmt != icodec->pix_fmt));
1781 if (ost->video_crop) {
1782 ost->topBand = frame_topBand;
1783 ost->leftBand = frame_leftBand;
1784 }
1785 if (ost->video_pad) {
1786 ost->padtop = frame_padtop;
1787 ost->padleft = frame_padleft;
1788 ost->padbottom = frame_padbottom;
1789 ost->padright = frame_padright;
1790 if (!ost->video_resample) {
1791 avcodec_get_frame_defaults(&ost->pict_tmp);
1792 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1793 codec->width, codec->height))
1794 goto fail;
1795 }
1796 }
1797 if (ost->video_resample) {
1798 avcodec_get_frame_defaults(&ost->pict_tmp);
1799 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1800 codec->width, codec->height)) {
1801 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1802 av_exit(1);
1803 }
1804 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1805 ost->img_resample_ctx = sws_getContext(
1806 icodec->width - (frame_leftBand + frame_rightBand),
1807 icodec->height - (frame_topBand + frame_bottomBand),
1808 icodec->pix_fmt,
1809 codec->width - (frame_padleft + frame_padright),
1810 codec->height - (frame_padtop + frame_padbottom),
1811 codec->pix_fmt,
1812 sws_flags, NULL, NULL, NULL);
1813 if (ost->img_resample_ctx == NULL) {
1814 fprintf(stderr, "Cannot get resampling context\n");
1815 av_exit(1);
1816 }
1817 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1818 }
1819 ost->encoding_needed = 1;
1820 ist->decoding_needed = 1;
1821 break;
1822 case CODEC_TYPE_SUBTITLE:
1823 ost->encoding_needed = 1;
1824 ist->decoding_needed = 1;
1825 break;
1826 default:
1827 abort();
1828 break;
1829 }
1830 /* two pass mode */
1831 if (ost->encoding_needed &&
1832 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1833 char logfilename[1024];
1834 FILE *f;
1835 int size;
1836 char *logbuffer;
1837
1838 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1839 pass_logfilename ?
1840 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1841 if (codec->flags & CODEC_FLAG_PASS1) {
1842 f = fopen(logfilename, "w");
1843 if (!f) {
1844 perror(logfilename);
1845 av_exit(1);
1846 }
1847 ost->logfile = f;
1848 } else {
1849 /* read the log file */
1850 f = fopen(logfilename, "r");
1851 if (!f) {
1852 perror(logfilename);
1853 av_exit(1);
1854 }
1855 fseek(f, 0, SEEK_END);
1856 size = ftell(f);
1857 fseek(f, 0, SEEK_SET);
1858 logbuffer = av_malloc(size + 1);
1859 if (!logbuffer) {
1860 fprintf(stderr, "Could not allocate log buffer\n");
1861 av_exit(1);
1862 }
1863 size = fread(logbuffer, 1, size, f);
1864 fclose(f);
1865 logbuffer[size] = '\0';
1866 codec->stats_in = logbuffer;
1867 }
1868 }
1869 }
1870 if(codec->codec_type == CODEC_TYPE_VIDEO){
1871 int size= codec->width * codec->height;
1872 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1873 }
1874 }
1875
1876 if (!bit_buffer)
1877 bit_buffer = av_malloc(bit_buffer_size);
1878 if (!bit_buffer)
1879 goto fail;
1880
1881 /* dump the file output parameters - cannot be done before in case
1882 of stream copy */
1883 for(i=0;i<nb_output_files;i++) {
1884 dump_format(output_files[i], i, output_files[i]->filename, 1);
1885 }
1886
1887 /* dump the stream mapping */
1888 if (verbose >= 0) {
1889 fprintf(stderr, "Stream mapping:\n");
1890 for(i=0;i<nb_ostreams;i++) {
1891 ost = ost_table[i];
1892 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1893 ist_table[ost->source_index]->file_index,
1894 ist_table[ost->source_index]->index,
1895 ost->file_index,
1896 ost->index);
1897 if (ost->sync_ist != ist_table[ost->source_index])
1898 fprintf(stderr, " [sync #%d.%d]",
1899 ost->sync_ist->file_index,
1900 ost->sync_ist->index);
1901 fprintf(stderr, "\n");
1902 }
1903 }
1904
1905 /* open each encoder */
1906 for(i=0;i<nb_ostreams;i++) {
1907 ost = ost_table[i];
1908 if (ost->encoding_needed) {
1909 AVCodec *codec = output_codecs[i];
1910 if (!codec)
1911 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1912 if (!codec) {
1913 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1914 ost->file_index, ost->index);
1915 av_exit(1);
1916 }
1917 if (avcodec_open(ost->st->codec, codec) < 0) {
1918 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1919 ost->file_index, ost->index);
1920 av_exit(1);
1921 }
1922 extra_size += ost->st->codec->extradata_size;
1923 }
1924 }
1925
1926 /* open each decoder */
1927 for(i=0;i<nb_istreams;i++) {
1928 ist = ist_table[i];
1929 if (ist->decoding_needed) {
1930 AVCodec *codec = input_codecs[i];
1931 if (!codec)
1932 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1933 if (!codec) {
1934 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1935 ist->st->codec->codec_id, ist->file_index, ist->index);
1936 av_exit(1);
1937 }
1938 if (avcodec_open(ist->st->codec, codec) < 0) {
1939 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1940 ist->file_index, ist->index);
1941 av_exit(1);
1942 }
1943 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1944 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1945 }
1946 }
1947
1948 /* init pts */
1949 for(i=0;i<nb_istreams;i++) {
1950 ist = ist_table[i];
1951 is = input_files[ist->file_index];
1952 ist->pts = 0;
1953 ist->next_pts = AV_NOPTS_VALUE;
1954 ist->is_start = 1;
1955 }
1956
1957 /* set meta data information from input file if required */
1958 for (i=0;i<nb_meta_data_maps;i++) {
1959 AVFormatContext *out_file;
1960 AVFormatContext *in_file;
1961
1962 int out_file_index = meta_data_maps[i].out_file;
1963 int in_file_index = meta_data_maps[i].in_file;
1964 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1965 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1966 ret = AVERROR(EINVAL);
1967 goto fail;
1968 }
1969 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1970 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1971 ret = AVERROR(EINVAL);
1972 goto fail;
1973 }
1974
1975 out_file = output_files[out_file_index];
1976 in_file = input_files[in_file_index];
1977
1978 strcpy(out_file->title, in_file->title);
1979 strcpy(out_file->author, in_file->author);
1980 strcpy(out_file->copyright, in_file->copyright);
1981 strcpy(out_file->comment, in_file->comment);
1982 strcpy(out_file->album, in_file->album);
1983 out_file->year = in_file->year;
1984 out_file->track = in_file->track;
1985 strcpy(out_file->genre, in_file->genre);
1986 }
1987
1988 /* open files and write file headers */
1989 for(i=0;i<nb_output_files;i++) {
1990 os = output_files[i];
1991 if (av_write_header(os) < 0) {
1992 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1993 ret = AVERROR(EINVAL);
1994 goto fail;
1995 }
1996 if (strcmp(output_files[i]->oformat->name, "rtp")) {
1997 want_sdp = 0;
1998 }
1999 }
2000 if (want_sdp) {
2001 print_sdp(output_files, nb_output_files);
2002 }
2003
2004 if (!using_stdin && verbose >= 0) {
2005 fprintf(stderr, "Press [q] to stop encoding\n");
2006 url_set_interrupt_cb(decode_interrupt_cb);
2007 }
2008 term_init();
2009
2010 key = -1;
2011 timer_start = av_gettime();
2012
2013 for(; received_sigterm == 0;) {
2014 int file_index, ist_index;
2015 AVPacket pkt;
2016 double ipts_min;
2017 double opts_min;
2018
2019 redo:
2020 ipts_min= 1e100;
2021 opts_min= 1e100;
2022 /* if 'q' pressed, exits */
2023 if (!using_stdin) {
2024 if (q_pressed)
2025 break;
2026 /* read_key() returns 0 on EOF */
2027 key = read_key();
2028 if (key == 'q')
2029 break;
2030 }
2031
2032 /* select the stream that we must read now by looking at the
2033 smallest output pts */
2034 file_index = -1;
2035 for(i=0;i<nb_ostreams;i++) {
2036 double ipts, opts;
2037 ost = ost_table[i];
2038 os = output_files[ost->file_index];
2039 ist = ist_table[ost->source_index];
2040 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2041 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2042 else
2043 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2044 ipts = (double)ist->pts;
2045 if (!file_table[ist->file_index].eof_reached){
2046 if(ipts < ipts_min) {
2047 ipts_min = ipts;
2048 if(input_sync ) file_index = ist->file_index;
2049 }
2050 if(opts < opts_min) {
2051 opts_min = opts;
2052 if(!input_sync) file_index = ist->file_index;
2053 }
2054 }
2055 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2056 file_index= -1;
2057 break;
2058 }
2059 }
2060 /* if none, if is finished */
2061 if (file_index < 0) {
2062 break;
2063 }
2064
2065 /* finish if recording time exhausted */
2066 if (opts_min >= (recording_time / 1000000.0))
2067 break;
2068
2069 /* finish if limit size exhausted */
2070 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2071 break;
2072
2073 /* read a frame from it and output it in the fifo */
2074 is = input_files[file_index];
2075 if (av_read_frame(is, &pkt) < 0) {
2076 file_table[file_index].eof_reached = 1;
2077 if (opt_shortest)
2078 break;
2079 else
2080 continue;
2081 }
2082
2083 if (do_pkt_dump) {
2084 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2085 }
2086 /* the following test is needed in case new streams appear
2087 dynamically in stream : we ignore them */
2088 if (pkt.stream_index >= file_table[file_index].nb_streams)
2089 goto discard_packet;
2090 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2091 ist = ist_table[ist_index];
2092 if (ist->discard)
2093 goto discard_packet;
2094
2095 if (pkt.dts != AV_NOPTS_VALUE)
2096 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2097 if (pkt.pts != AV_NOPTS_VALUE)
2098 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2099
2100 if(input_files_ts_scale[file_index][pkt.stream_index]){
2101 if(pkt.pts != AV_NOPTS_VALUE)
2102 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2103 if(pkt.dts != AV_NOPTS_VALUE)
2104 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2105 }
2106
2107 // 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);
2108 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2109 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2110 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2111 int64_t delta= pkt_dts - ist->next_pts;
2112 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2113 input_files_ts_offset[ist->file_index]-= delta;
2114 if (verbose > 2)
2115 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2116 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2117 if(pkt.pts != AV_NOPTS_VALUE)
2118 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2119 }
2120 }
2121
2122 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2123 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2124
2125 if (verbose >= 0)
2126 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2127 ist->file_index, ist->index);
2128 if (exit_on_error)
2129 av_exit(1);
2130 av_free_packet(&pkt);
2131 goto redo;
2132 }
2133
2134 discard_packet:
2135 av_free_packet(&pkt);
2136
2137 /* dump report by using the output first video and audio streams */
2138 print_report(output_files, ost_table, nb_ostreams, 0);
2139 }
2140
2141 /* at the end of stream, we must flush the decoder buffers */
2142 for(i=0;i<nb_istreams;i++) {
2143 ist = ist_table[i];
2144 if (ist->decoding_needed) {
2145 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2146 }
2147 }
2148
2149 term_exit();
2150
2151 /* write the trailer if needed and close file */
2152 for(i=0;i<nb_output_files;i++) {
2153 os = output_files[i];
2154 av_write_trailer(os);
2155 }
2156
2157 /* dump report by using the first video and audio streams */
2158 print_report(output_files, ost_table, nb_ostreams, 1);
2159
2160 /* close each encoder */
2161 for(i=0;i<nb_ostreams;i++) {
2162 ost = ost_table[i];
2163 if (ost->encoding_needed) {
2164 av_freep(&ost->st->codec->stats_in);
2165 avcodec_close(ost->st->codec);
2166 }
2167 }
2168
2169 /* close each decoder */
2170 for(i=0;i<nb_istreams;i++) {
2171 ist = ist_table[i];
2172 if (ist->decoding_needed) {
2173 avcodec_close(ist->st->codec);
2174 }
2175 }
2176
2177 /* finished ! */
2178
2179 ret = 0;
2180 fail1:
2181 av_freep(&bit_buffer);
2182 av_free(file_table);
2183
2184 if (ist_table) {
2185 for(i=0;i<nb_istreams;i++) {
2186 ist = ist_table[i];
2187 av_free(ist);
2188 }
2189 av_free(ist_table);
2190 }
2191 if (ost_table) {
2192 for(i=0;i<nb_ostreams;i++) {
2193 ost = ost_table[i];
2194 if (ost) {
2195 if (ost->logfile) {
2196 fclose(ost->logfile);
2197 ost->logfile = NULL;
2198 }
2199 av_fifo_free(&ost->fifo); /* works even if fifo is not
2200 initialized but set to zero */
2201 av_free(ost->pict_tmp.data[0]);
2202 if (ost->video_resample)
2203 sws_freeContext(ost->img_resample_ctx);
2204 if (ost->resample)
2205 audio_resample_close(ost->resample);
2206 if (ost->reformat_ctx)
2207 av_audio_convert_free(ost->reformat_ctx);
2208 av_free(ost);
2209 }
2210 }
2211 av_free(ost_table);
2212 }
2213 return ret;
2214 fail:
2215 ret = AVERROR(ENOMEM);
2216 goto fail1;
2217 }
2218
2219 #if 0
2220 int file_read(const char *filename)
2221 {
2222 URLContext *h;
2223 unsigned char buffer[1024];
2224 int len, i;
2225
2226 if (url_open(&h, filename, O_RDONLY) < 0) {
2227 printf("could not open '%s'\n", filename);
2228 return -1;
2229 }
2230 for(;;) {
2231 len = url_read(h, buffer, sizeof(buffer));
2232 if (len <= 0)
2233 break;
2234 for(i=0;i<len;i++) putchar(buffer[i]);
2235 }
2236 url_close(h);
2237 return 0;
2238 }
2239 #endif
2240
2241 static void opt_format(const char *arg)
2242 {
2243 /* compatibility stuff for pgmyuv */
2244 if (!strcmp(arg, "pgmyuv")) {
2245 pgmyuv_compatibility_hack=1;
2246 // opt_image_format(arg);
2247 arg = "image2";
2248 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2249 }
2250
2251 file_iformat = av_find_input_format(arg);
2252 file_oformat = guess_format(arg, NULL, NULL);
2253 if (!file_iformat && !file_oformat) {
2254 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2255 av_exit(1);
2256 }
2257 }
2258
2259 static void opt_video_rc_override_string(const char *arg)
2260 {
2261 video_rc_override_string = arg;
2262 }
2263
2264 static int opt_me_threshold(const char *opt, const char *arg)
2265 {
2266 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2267 return 0;
2268 }
2269
2270 static int opt_verbose(const char *opt, const char *arg)
2271 {
2272 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2273 av_log_set_level(verbose);
2274 return 0;
2275 }
2276
2277 static int opt_frame_rate(const char *opt, const char *arg)
2278 {
2279 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2280 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2281 av_exit(1);
2282 }
2283 return 0;
2284 }
2285
2286 static int opt_bitrate(const char *opt, const char *arg)
2287 {
2288 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2289
2290 opt_default(opt, arg);
2291
2292 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2293 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2294
2295 return 0;
2296 }
2297
2298 static void opt_frame_crop_top(const char *arg)
2299 {
2300 frame_topBand = atoi(arg);
2301 if (frame_topBand < 0) {
2302 fprintf(stderr, "Incorrect top crop size\n");
2303 av_exit(1);
2304 }
2305 if ((frame_topBand % 2) != 0) {
2306 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2307 av_exit(1);
2308 }
2309 if ((frame_topBand) >= frame_height){
2310 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2311 av_exit(1);
2312 }
2313 frame_height -= frame_topBand;
2314 }
2315
2316 static void opt_frame_crop_bottom(const char *arg)
2317 {
2318 frame_bottomBand = atoi(arg);
2319 if (frame_bottomBand < 0) {
2320 fprintf(stderr, "Incorrect bottom crop size\n");
2321 av_exit(1);
2322 }
2323 if ((frame_bottomBand % 2) != 0) {
2324 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2325 av_exit(1);
2326 }
2327 if ((frame_bottomBand) >= frame_height){
2328 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2329 av_exit(1);
2330 }
2331 frame_height -= frame_bottomBand;
2332 }
2333
2334 static void opt_frame_crop_left(const char *arg)
2335 {
2336 frame_leftBand = atoi(arg);
2337 if (frame_leftBand < 0) {
2338 fprintf(stderr, "Incorrect left crop size\n");
2339 av_exit(1);
2340 }
2341 if ((frame_leftBand % 2) != 0) {
2342 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2343 av_exit(1);
2344 }
2345 if ((frame_leftBand) >= frame_width){
2346 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2347 av_exit(1);
2348 }
2349 frame_width -= frame_leftBand;
2350 }
2351
2352 static void opt_frame_crop_right(const char *arg)
2353 {
2354 frame_rightBand = atoi(arg);
2355 if (frame_rightBand < 0) {
2356 fprintf(stderr, "Incorrect right crop size\n");
2357 av_exit(1);
2358 }
2359 if ((frame_rightBand % 2) != 0) {
2360 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2361 av_exit(1);
2362 }
2363 if ((frame_rightBand) >= frame_width){
2364 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2365 av_exit(1);
2366 }
2367 frame_width -= frame_rightBand;
2368 }
2369
2370 static void opt_frame_size(const char *arg)
2371 {
2372 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2373 fprintf(stderr, "Incorrect frame size\n");
2374 av_exit(1);
2375 }
2376 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2377 fprintf(stderr, "Frame size must be a multiple of 2\n");
2378 av_exit(1);
2379 }
2380 }
2381
2382
2383 #define SCALEBITS 10
2384 #define ONE_HALF (1 << (SCALEBITS - 1))
2385 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2386
2387 #define RGB_TO_Y(r, g, b) \
2388 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2389 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2390
2391 #define RGB_TO_U(r1, g1, b1, shift)\
2392 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2393 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2394
2395 #define RGB_TO_V(r1, g1, b1, shift)\
2396 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2397 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2398
2399 static void opt_pad_color(const char *arg) {
2400 /* Input is expected to be six hex digits similar to
2401 how colors are expressed in html tags (but without the #) */
2402 int rgb = strtol(arg, NULL, 16);
2403 int r,g,b;
2404
2405 r = (rgb >> 16);
2406 g = ((rgb >> 8) & 255);
2407 b = (rgb & 255);
2408
2409 padcolor[0] = RGB_TO_Y(r,g,b);
2410 padcolor[1] = RGB_TO_U(r,g,b,0);
2411 padcolor[2] = RGB_TO_V(r,g,b,0);
2412 }
2413
2414 static void opt_frame_pad_top(const char *arg)
2415 {
2416 frame_padtop = atoi(arg);
2417 if (frame_padtop < 0) {
2418 fprintf(stderr, "Incorrect top pad size\n");
2419 av_exit(1);
2420 }
2421 if ((frame_padtop % 2) != 0) {
2422 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2423 av_exit(1);
2424 }
2425 }
2426
2427 static void opt_frame_pad_bottom(const char *arg)
2428 {
2429 frame_padbottom = atoi(arg);
2430 if (frame_padbottom < 0) {
2431 fprintf(stderr, "Incorrect bottom pad size\n");
2432 av_exit(1);
2433 }
2434 if ((frame_padbottom % 2) != 0) {
2435 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2436 av_exit(1);
2437 }
2438 }
2439
2440
2441 static void opt_frame_pad_left(const char *arg)
2442 {
2443 frame_padleft = atoi(arg);
2444 if (frame_padleft < 0) {
2445 fprintf(stderr, "Incorrect left pad size\n");
2446 av_exit(1);
2447 }
2448 if ((frame_padleft % 2) != 0) {
2449 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2450 av_exit(1);
2451 }
2452 }
2453
2454
2455 static void opt_frame_pad_right(const char *arg)
2456 {
2457 frame_padright = atoi(arg);
2458 if (frame_padright < 0) {
2459 fprintf(stderr, "Incorrect right pad size\n");
2460 av_exit(1);
2461 }
2462 if ((frame_padright % 2) != 0) {
2463 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2464 av_exit(1);
2465 }
2466 }
2467
2468 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2469 {
2470 int i;
2471 char fmt_str[128];
2472 for (i=-1; i < nb_fmts; i++) {
2473 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2474 fprintf(stdout, "%s\n", fmt_str);
2475 }
2476 }
2477
2478 static void opt_frame_pix_fmt(const char *arg)
2479 {
2480 if (strcmp(arg, "list"))
2481 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2482 else {
2483 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2484 av_exit(0);
2485 }
2486 }
2487
2488 static void opt_frame_aspect_ratio(const char *arg)
2489 {
2490 int x = 0, y = 0;
2491 double ar = 0;
2492 const char *p;
2493 char *end;
2494
2495 p = strchr(arg, ':');
2496 if (p) {
2497 x = strtol(arg, &end, 10);
2498 if (end == p)
2499 y = strtol(end+1, &end, 10);
2500 if (x > 0 && y > 0)
2501 ar = (double)x / (double)y;
2502 } else
2503 ar = strtod(arg, NULL);
2504
2505 if (!ar) {
2506 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2507 av_exit(1);
2508 }
2509 frame_aspect_ratio = ar;
2510 }
2511
2512 static void opt_qscale(const char *arg)
2513 {
2514 video_qscale = atof(arg);
2515 if (video_qscale <= 0 ||
2516 video_qscale > 255) {
2517 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2518 av_exit(1);
2519 }
2520 }
2521
2522 static void opt_top_field_first(const char *arg)
2523 {
2524 top_field_first= atoi(arg);
2525 }
2526
2527 static int opt_thread_count(const char *opt, const char *arg)
2528 {
2529 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2530 #if !defined(HAVE_THREADS)
2531 if (verbose >= 0)
2532 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2533 #endif
2534 return 0;
2535 }
2536
2537 static void opt_audio_sample_fmt(const char *arg)
2538 {
2539 if (strcmp(arg, "list"))
2540 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2541 else {
2542 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2543 av_exit(0);
2544 }
2545 }
2546
2547 static int opt_audio_rate(const char *opt, const char *arg)
2548 {
2549 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2550 return 0;
2551 }
2552
2553 static int opt_audio_channels(const char *opt, const char *arg)
2554 {
2555 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2556 return 0;
2557 }
2558
2559 static void opt_video_channel(const char *arg)
2560 {
2561 video_channel = strtol(arg, NULL, 0);
2562 }
2563
2564 static void opt_video_standard(const char *arg)
2565 {
2566 video_standard = av_strdup(arg);
2567 }
2568
2569 static void opt_codec(int *pstream_copy, char **pcodec_name,
2570 int codec_type, const char *arg)
2571 {
2572 av_freep(pcodec_name);
2573 if (!strcmp(arg, "copy")) {
2574 *pstream_copy = 1;
2575 } else {
2576 *pcodec_name = av_strdup(arg);
2577 }
2578 }
2579
2580 static void opt_audio_codec(const char *arg)
2581 {
2582 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2583 }
2584
2585 static void opt_audio_tag(const char *arg)
2586 {
2587 char *tail;
2588 audio_codec_tag= strtol(arg, &tail, 0);
2589
2590 if(!tail || *tail)
2591 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2592 }
2593
2594 static void opt_video_tag(const char *arg)
2595 {
2596 char *tail;
2597 video_codec_tag= strtol(arg, &tail, 0);
2598
2599 if(!tail || *tail)
2600 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2601 }
2602
2603 #ifdef CONFIG_VHOOK
2604 static void add_frame_hooker(const char *arg)
2605 {
2606 int argc = 0;
2607 char *argv[64];
2608 int i;
2609 char *args = av_strdup(arg);
2610
2611 using_vhook = 1;
2612
2613 argv[0] = strtok(args, " ");
2614 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2615 }
2616
2617 i = frame_hook_add(argc, argv);
2618
2619 if (i != 0) {
2620 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2621 av_exit(1);
2622 }
2623 }
2624 #endif
2625
2626 static void opt_video_codec(const char *arg)
2627 {
2628 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2629 }
2630
2631 static void opt_subtitle_codec(const char *arg)
2632 {
2633 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2634 }
2635
2636 static void opt_map(const char *arg)
2637 {
2638 AVStreamMap *m;
2639 char *p;
2640
2641 m = &stream_maps[nb_stream_maps++];
2642
2643 m->file_index = strtol(arg, &p, 0);
2644 if (*p)
2645 p++;
2646
2647 m->stream_index = strtol(p, &p, 0);
2648 if (*p) {
2649 p++;
2650 m->sync_file_index = strtol(p, &p, 0);
2651 if (*p)
2652 p++;
2653 m->sync_stream_index = strtol(p, &p, 0);
2654 } else {
2655 m->sync_file_index = m->file_index;
2656 m->sync_stream_index = m->stream_index;
2657 }
2658 }
2659
2660 static void opt_map_meta_data(const char *arg)
2661 {
2662 AVMetaDataMap *m;
2663 char *p;
2664
2665 m = &meta_data_maps[nb_meta_data_maps++];
2666
2667 m->out_file = strtol(arg, &p, 0);
2668 if (*p)
2669 p++;
2670
2671 m->in_file = strtol(p, &p, 0);
2672 }
2673
2674 static void opt_input_ts_scale(const char *arg)
2675 {
2676 unsigned int stream;
2677 double scale;
2678 char *p;
2679
2680 stream = strtol(arg, &p, 0);
2681 if (*p)
2682 p++;
2683 scale= strtod(p, &p);
2684
2685 if(stream >= MAX_STREAMS)
2686 av_exit(1);
2687
2688 input_files_ts_scale[nb_input_files][stream]= scale;
2689 }
2690
2691 static int opt_recording_time(const char *opt, const char *arg)
2692 {
2693 recording_time = parse_time_or_die(opt, arg, 1);
2694 return 0;
2695 }
2696
2697 static int opt_start_time(const char *opt, const char *arg)
2698 {
2699 start_time = parse_time_or_die(opt, arg, 1);
2700 return 0;
2701 }
2702
2703 static int opt_rec_timestamp(const char *opt, const char *arg)
2704 {
2705 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2706 return 0;
2707 }
2708
2709 static int opt_input_ts_offset(const char *opt, const char *arg)
2710 {
2711 input_ts_offset = parse_time_or_die(opt, arg, 1);
2712 return 0;
2713 }
2714
2715 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2716 {
2717 const char *codec_string = encoder ? "encoder" : "decoder";
2718 AVCodec *codec;
2719
2720 if(!name)
2721 return CODEC_ID_NONE;
2722 codec = encoder ?
2723 avcodec_find_encoder_by_name(name) :
2724 avcodec_find_decoder_by_name(name);
2725 if(!codec) {
2726 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2727 av_exit(1);
2728 }
2729 if(codec->type != type) {
2730 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2731 av_exit(1);
2732 }
2733 return codec->id;
2734 }
2735
2736 static void opt_input_file(const char *filename)
2737 {
2738 AVFormatContext *ic;
2739 AVFormatParameters params, *ap = &params;
2740 int err, i, ret, rfps, rfps_base;
2741 int64_t timestamp;
2742
2743 if (!strcmp(filename, "-"))
2744 filename = "pipe:";
2745
2746 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2747 !strcmp(filename, "/dev/stdin");
2748
2749 /* get default parameters from command line */
2750 ic = av_alloc_format_context();
2751
2752 memset(ap, 0, sizeof(*ap));
2753 ap->prealloced_context = 1;
2754 ap->sample_rate = audio_sample_rate;
2755 ap->channels = audio_channels;
2756 ap->time_base.den = frame_rate.num;
2757 ap->time_base.num = frame_rate.den;
2758 ap->width = frame_width + frame_padleft + frame_padright;
2759 ap->height = frame_height + frame_padtop + frame_padbottom;
2760 ap->pix_fmt = frame_pix_fmt;
2761 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2762 ap->channel = video_channel;
2763 ap->standard = video_standard;
2764 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2765 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2766 if(pgmyuv_compatibility_hack)
2767 ap->video_codec_id= CODEC_ID_PGMYUV;
2768
2769 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2770
2771 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2772 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2773 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2774
2775 /* open the input file with generic libav function */
2776 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2777 if (err < 0) {
2778 print_error(filename, err);
2779 av_exit(1);
2780 }
2781 if(opt_programid) {
2782 int i;
2783 for(i=0; i<ic->nb_programs; i++)
2784 if(ic->programs[i]->id != opt_programid)
2785 ic->programs[i]->discard = AVDISCARD_ALL;
2786 }
2787
2788 ic->loop_input = loop_input;
2789
2790 /* If not enough info to get the stream parameters, we decode the
2791 first frames to get it. (used in mpeg case for example) */
2792 ret = av_find_stream_info(ic);
2793 if (ret < 0 && verbose >= 0) {
2794 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2795 av_exit(1);
2796 }
2797
2798 timestamp = start_time;
2799 /* add the stream start time */
2800 if (ic->start_time != AV_NOPTS_VALUE)
2801 timestamp += ic->start_time;
2802
2803 /* if seeking requested, we execute it */
2804 if (start_time != 0) {
2805 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2806 if (ret < 0) {
2807 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2808 filename, (double)timestamp / AV_TIME_BASE);
2809 }
2810 /* reset seek info */
2811 start_time = 0;
2812 }
2813
2814 /* update the current parameters so that they match the one of the input stream */
2815 for(i=0;i<ic->nb_streams;i++) {
2816 AVCodecContext *enc = ic->streams[i]->codec;
2817 if(thread_count>1)
2818 avcodec_thread_init(enc, thread_count);
2819 enc->thread_count= thread_count;
2820 switch(enc->codec_type) {
2821 case CODEC_TYPE_AUDIO:
2822 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2823 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2824 audio_channels = enc->channels;
2825 audio_sample_rate = enc->sample_rate;
2826 audio_sample_fmt = enc->sample_fmt;
2827 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2828 if(audio_disable)
2829 ic->streams[i]->discard= AVDISCARD_ALL;
2830 break;
2831 case CODEC_TYPE_VIDEO:
2832 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2833 frame_height = enc->height;
2834 frame_width = enc->width;
2835 if(ic->streams[i]->sample_aspect_ratio.num)
2836 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2837 else
2838 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2839 frame_aspect_ratio *= (float) enc->width / enc->height;
2840 frame_pix_fmt = enc->pix_fmt;
2841 rfps = ic->streams[i]->r_frame_rate.num;
2842 rfps_base = ic->streams[i]->r_frame_rate.den;
2843 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2844 if(me_threshold)
2845 enc->debug |= FF_DEBUG_MV;
2846
2847 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2848
2849 if (verbose >= 0)
2850 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2851 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2852
2853 (float)rfps / rfps_base, rfps, rfps_base);
2854 }
2855 /* update the current frame rate to match the stream frame rate */
2856 frame_rate.num = rfps;
2857 frame_rate.den = rfps_base;
2858
2859 enc->rate_emu = rate_emu;
2860 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2861 if(video_disable)
2862 ic->streams[i]->discard= AVDISCARD_ALL;
2863 else if(video_discard)
2864 ic->streams[i]->discard= video_discard;
2865 break;
2866 case CODEC_TYPE_DATA:
2867 break;
2868 case CODEC_TYPE_SUBTITLE:
2869 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2870 if(subtitle_disable)
2871 ic->streams[i]->discard = AVDISCARD_ALL;
2872 break;
2873 case CODEC_TYPE_ATTACHMENT:
2874 case CODEC_TYPE_UNKNOWN:
2875 nb_icodecs++;
2876 break;
2877 default:
2878 abort();
2879 }
2880 }
2881
2882 input_files[nb_input_files] = ic;
2883 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2884 /* dump the file content */
2885 if (verbose >= 0)
2886 dump_format(ic, nb_input_files, filename, 0);
2887
2888 nb_input_files++;
2889 file_iformat = NULL;
2890 file_oformat = NULL;
2891
2892 video_channel = 0;
2893
2894 rate_emu = 0;
2895 av_freep(&video_codec_name);
2896 av_freep(&audio_codec_name);
2897 av_freep(&subtitle_codec_name);
2898 }
2899
2900 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2901 int *has_subtitle_ptr)
2902 {
2903 int has_video, has_audio, has_subtitle, i, j;
2904 AVFormatContext *ic;
2905
2906 has_video = 0;
2907 has_audio = 0;
2908 has_subtitle = 0;
2909 for(j=0;j<nb_input_files;j++) {
2910 ic = input_files[j];
2911 for(i=0;i<ic->nb_streams;i++) {
2912 AVCodecContext *enc = ic->streams[i]->codec;
2913 switch(enc->codec_type) {
2914 case CODEC_TYPE_AUDIO:
2915 has_audio = 1;
2916 break;
2917 case CODEC_TYPE_VIDEO:
2918 has_video = 1;
2919 break;
2920 case CODEC_TYPE_SUBTITLE:
2921 has_subtitle = 1;
2922 break;
2923 case CODEC_TYPE_DATA:
2924 case CODEC_TYPE_ATTACHMENT:
2925 case CODEC_TYPE_UNKNOWN:
2926 break;
2927 default:
2928 abort();
2929 }
2930 }
2931 }
2932 *has_video_ptr = has_video;
2933 *has_audio_ptr = has_audio;
2934 *has_subtitle_ptr = has_subtitle;
2935 }
2936
2937 static void new_video_stream(AVFormatContext *oc)
2938 {
2939 AVStream *st;
2940 AVCodecContext *video_enc;
2941 int codec_id;
2942
2943 st = av_new_stream(oc, oc->nb_streams);
2944 if (!st) {
2945 fprintf(stderr, "Could not alloc stream\n");
2946 av_exit(1);
2947 }
2948 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2949 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2950 video_bitstream_filters= NULL;
2951
2952 if(thread_count>1)
2953 avcodec_thread_init(st->codec, thread_count);
2954
2955 video_enc = st->codec;
2956
2957 if(video_codec_tag)
2958 video_enc->codec_tag= video_codec_tag;
2959
2960 if( (video_global_header&1)
2961 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2962 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2963 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2964 }
2965 if(video_global_header&2){
2966 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2967 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2968 }
2969
2970 if (video_stream_copy) {
2971 st->stream_copy = 1;
2972 video_enc->codec_type = CODEC_TYPE_VIDEO;
2973 video_enc->sample_aspect_ratio =
2974 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
2975 } else {
2976 const char *p;
2977 int i;
2978 AVCodec *codec;
2979 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
2980
2981 if (video_codec_name) {
2982 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
2983 codec = avcodec_find_encoder_by_name(video_codec_name);
2984 output_codecs[nb_ocodecs] = codec;
2985 } else {
2986 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2987 codec = avcodec_find_encoder(codec_id);
2988 }
2989
2990 video_enc->codec_id = codec_id;
2991
2992 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
2993
2994 if (codec && codec->supported_framerates && !force_fps)
2995 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
2996 video_enc->time_base.den = fps.num;
2997 video_enc->time_base.num = fps.den;
2998
2999 video_enc->width = frame_width + frame_padright + frame_padleft;
3000 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3001 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3002 video_enc->pix_fmt = frame_pix_fmt;
3003 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3004
3005 if(codec && codec->pix_fmts){
3006 const enum PixelFormat *p= codec->pix_fmts;
3007 for(; *p!=-1; p++){
3008 if(*p == video_enc->pix_fmt)
3009 break;
3010 }
3011 if(*p == -1)
3012 video_enc->pix_fmt = codec->pix_fmts[0];
3013 }
3014
3015 if (intra_only)
3016 video_enc->gop_size = 0;
3017 if (video_qscale || same_quality) {
3018 video_enc->flags |= CODEC_FLAG_QSCALE;
3019 video_enc->global_quality=
3020 st->quality = FF_QP2LAMBDA * video_qscale;
3021 }
3022
3023 if(intra_matrix)
3024 video_enc->intra_matrix = intra_matrix;
3025 if(inter_matrix)
3026 video_enc->inter_matrix = inter_matrix;
3027
3028 video_enc->thread_count = thread_count;
3029 p= video_rc_override_string;
3030 for(i=0; p; i++){
3031 int start, end, q;
3032 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3033 if(e!=3){
3034 fprintf(stderr, "error parsing rc_override\n");
3035 av_exit(1);
3036 }
3037 video_enc->rc_override=
3038 av_realloc(video_enc->rc_override,
3039 sizeof(RcOverride)*(i+1));
3040 video_enc->rc_override[i].start_frame= start;
3041 video_enc->rc_override[i].end_frame = end;
3042 if(q>0){
3043 video_enc->rc_override[i].qscale= q;
3044 video_enc->rc_override[i].quality_factor= 1.0;
3045 }
3046 else{
3047 video_enc->rc_override[i].qscale= 0;
3048 video_enc->rc_override[i].quality_factor= -q/100.0;
3049 }
3050 p= strchr(p, '/');
3051 if(p) p++;
3052 }
3053 video_enc->rc_override_count=i;
3054 if (!video_enc->rc_initial_buffer_occupancy)
3055 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3056 video_enc->me_threshold= me_threshold;
3057 video_enc->intra_dc_precision= intra_dc_precision - 8;
3058
3059 if (do_psnr)
3060 video_enc->flags|= CODEC_FLAG_PSNR;
3061
3062 /* two pass mode */
3063 if (do_pass) {
3064 if (do_pass == 1) {
3065 video_enc->flags |= CODEC_FLAG_PASS1;
3066 } else {
3067 video_enc->flags |= CODEC_FLAG_PASS2;
3068 }
3069 }
3070 }
3071 nb_ocodecs++;
3072
3073 /* reset some key parameters */
3074 video_disable = 0;
3075 av_freep(&video_codec_name);
3076 video_stream_copy = 0;
3077 }
3078
3079 static void new_audio_stream(AVFormatContext *oc)
3080 {
3081 AVStream *st;
3082 AVCodecContext *audio_enc;
3083 int codec_id;
3084
3085 st = av_new_stream(oc, oc->nb_streams);
3086 if (!st) {
3087 fprintf(stderr, "Could not alloc stream\n");
3088 av_exit(1);
3089 }
3090 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3091
3092 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3093 audio_bitstream_filters= NULL;
3094
3095 if(thread_count>1)
3096 avcodec_thread_init(st->codec, thread_count);
3097
3098 audio_enc = st->codec;
3099 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3100
3101 if(audio_codec_tag)
3102 audio_enc->codec_tag= audio_codec_tag;
3103
3104 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3105 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3106 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3107 }
3108 if (audio_stream_copy) {
3109 st->stream_copy = 1;
3110 audio_enc->channels = audio_channels;
3111 } else {
3112 AVCodec *codec;
3113
3114 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3115
3116 if (audio_codec_name) {
3117 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3118 codec = avcodec_find_encoder_by_name(audio_codec_name);
3119 output_codecs[nb_ocodecs] = codec;
3120 } else {
3121 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3122 codec = avcodec_find_encoder(codec_id);
3123 }
3124 audio_enc->codec_id = codec_id;
3125
3126 if (audio_qscale > QSCALE_NONE) {
3127 audio_enc->flags |= CODEC_FLAG_QSCALE;
3128 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3129 }
3130 audio_enc->thread_count = thread_count;
3131 audio_enc->channels = audio_channels;
3132 audio_enc->sample_fmt = audio_sample_fmt;
3133
3134 if(codec && codec->sample_fmts){
3135 const enum SampleFormat *p= codec->sample_fmts;
3136 for(; *p!=-1; p++){
3137 if(*p == audio_enc->sample_fmt)
3138 break;
3139 }
3140 if(*p == -1)
3141 audio_enc->sample_fmt = codec->sample_fmts[0];
3142 }
3143 }
3144 nb_ocodecs++;
3145 audio_enc->sample_rate = audio_sample_rate;
3146 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3147 if (audio_language) {
3148 av_strlcpy(st->language, audio_language, sizeof(st->language));
3149 av_free(audio_language);
3150 audio_language = NULL;
3151 }
3152
3153 /* reset some key parameters */
3154 audio_disable = 0;
3155 av_freep(&audio_codec_name);
3156 audio_stream_copy = 0;
3157 }
3158
3159 static void new_subtitle_stream(AVFormatContext *oc)
3160 {
3161 AVStream *st;
3162 AVCodecContext *subtitle_enc;
3163
3164 st = av_new_stream(oc, oc->nb_streams);
3165 if (!st) {
3166 fprintf(stderr, "Could not alloc stream\n");
3167 av_exit(1);
3168 }
3169 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3170
3171 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3172 subtitle_bitstream_filters= NULL;
3173
3174 subtitle_enc = st->codec;
3175 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3176 if (subtitle_stream_copy) {
3177 st->stream_copy = 1;
3178 } else {
3179 set_context_opts(avctx_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3180 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3181 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3182 }
3183 nb_ocodecs++;
3184
3185 if (subtitle_language) {
3186 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
3187 av_free(subtitle_language);
3188 subtitle_language = NULL;
3189 }
3190
3191 subtitle_disable = 0;
3192 av_freep(&subtitle_codec_name);
3193 subtitle_stream_copy = 0;
3194 }
3195
3196 static void opt_new_audio_stream(void)
3197 {
3198 AVFormatContext *oc;
3199 if (nb_output_files <= 0) {
3200 fprintf(stderr, "At least one output file must be specified\n");
3201 av_exit(1);
3202 }
3203 oc = output_files[nb_output_files - 1];
3204 new_audio_stream(oc);
3205 }
3206
3207 static void opt_new_video_stream(void)
3208 {
3209 AVFormatContext *oc;
3210 if (nb_output_files <= 0) {
3211 fprintf(stderr, "At least one output file must be specified\n");
3212 av_exit(1);
3213 }
3214 oc = output_files[nb_output_files - 1];
3215 new_video_stream(oc);
3216 }
3217
3218 static void opt_new_subtitle_stream(void)
3219 {
3220 AVFormatContext *oc;
3221 if (nb_output_files <= 0) {
3222 fprintf(stderr, "At least one output file must be specified\n");
3223 av_exit(1);
3224 }
3225 oc = output_files[nb_output_files - 1];
3226 new_subtitle_stream(oc);
3227 }