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Replace AVSubtitleRect.rgba_palette and bitmap by AVPicture.
[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 static int64_t channel_layout = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 1;
159 static char *audio_codec_name = NULL;
160 static int audio_codec_tag = 0;
161 static char *audio_language = NULL;
162
163 static int subtitle_disable = 0;
164 static char *subtitle_codec_name = NULL;
165 static char *subtitle_language = NULL;
166
167 static float mux_preload= 0.5;
168 static float mux_max_delay= 0.7;
169
170 static int64_t recording_time = INT64_MAX;
171 static int64_t start_time = 0;
172 static int64_t rec_timestamp = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static char *str_title = NULL;
176 static char *str_author = NULL;
177 static char *str_copyright = NULL;
178 static char *str_comment = NULL;
179 static char *str_genre = NULL;
180 static char *str_album = NULL;
181 static int do_benchmark = 0;
182 static int do_hex_dump = 0;
183 static int do_pkt_dump = 0;
184 static int do_psnr = 0;
185 static int do_pass = 0;
186 static char *pass_logfilename_prefix = NULL;
187 static int audio_stream_copy = 0;
188 static int video_stream_copy = 0;
189 static int subtitle_stream_copy = 0;
190 static int video_sync_method= -1;
191 static int audio_sync_method= 0;
192 static float audio_drift_threshold= 0.1;
193 static int copy_ts= 0;
194 static int opt_shortest = 0;
195 static int video_global_header = 0;
196 static char *vstats_filename;
197 static FILE *vstats_file;
198 static int opt_programid = 0;
199 static int copy_initial_nonkeyframes = 0;
200
201 static int rate_emu = 0;
202
203 static int video_channel = 0;
204 static char *video_standard;
205
206 static int audio_volume = 256;
207
208 static int exit_on_error = 0;
209 static int using_stdin = 0;
210 static int using_vhook = 0;
211 static int verbose = 1;
212 static int thread_count= 1;
213 static int q_pressed = 0;
214 static int64_t video_size = 0;
215 static int64_t audio_size = 0;
216 static int64_t extra_size = 0;
217 static int nb_frames_dup = 0;
218 static int nb_frames_drop = 0;
219 static int input_sync;
220 static uint64_t limit_filesize = 0;
221 static int force_fps = 0;
222
223 static int pgmyuv_compatibility_hack=0;
224 static float dts_delta_threshold = 10;
225
226 static unsigned int sws_flags = SWS_BICUBIC;
227
228 static int64_t timer_start;
229
230 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
231 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
232 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
234
235 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
236
237 struct AVInputStream;
238
239 typedef struct AVOutputStream {
240 int file_index; /* file index */
241 int index; /* stream index in the output file */
242 int source_index; /* AVInputStream index */
243 AVStream *st; /* stream in the output file */
244 int encoding_needed; /* true if encoding needed for this stream */
245 int frame_number;
246 /* input pts and corresponding output pts
247 for A/V sync */
248 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
249 struct AVInputStream *sync_ist; /* input stream to sync against */
250 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
251 /* video only */
252 int video_resample;
253 AVFrame pict_tmp; /* temporary image for resampling */
254 struct SwsContext *img_resample_ctx; /* for image resampling */
255 int resample_height;
256
257 int video_crop;
258 int topBand; /* cropping area sizes */
259 int leftBand;
260
261 int video_pad;
262 int padtop; /* padding area sizes */
263 int padbottom;
264 int padleft;
265 int padright;
266
267 /* audio only */
268 int audio_resample;
269 ReSampleContext *resample; /* for audio resampling */
270 int reformat_pair;
271 AVAudioConvert *reformat_ctx;
272 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
273 FILE *logfile;
274 } AVOutputStream;
275
276 typedef struct AVInputStream {
277 int file_index;
278 int index;
279 AVStream *st;
280 int discard; /* true if stream data should be discarded */
281 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
282 int64_t sample_index; /* current sample */
283
284 int64_t start; /* time when read started */
285 int64_t next_pts; /* synthetic pts for cases where pkt.pts
286 is not defined */
287 int64_t pts; /* current pts */
288 int is_start; /* is 1 at the start and after a discontinuity */
289 } AVInputStream;
290
291 typedef struct AVInputFile {
292 int eof_reached; /* true if eof reached */
293 int ist_index; /* index of first stream in ist_table */
294 int buffer_size; /* current total buffer size */
295 int nb_streams; /* nb streams we are aware of */
296 } AVInputFile;
297
298 #ifdef HAVE_TERMIOS_H
299
300 /* init terminal so that we can grab keys */
301 static struct termios oldtty;
302 #endif
303
304 static void term_exit(void)
305 {
306 #ifdef HAVE_TERMIOS_H
307 tcsetattr (0, TCSANOW, &oldtty);
308 #endif
309 }
310
311 static volatile sig_atomic_t received_sigterm = 0;
312
313 static void
314 sigterm_handler(int sig)
315 {
316 received_sigterm = sig;
317 term_exit();
318 }
319
320 static void term_init(void)
321 {
322 #ifdef HAVE_TERMIOS_H
323 struct termios tty;
324
325 tcgetattr (0, &tty);
326 oldtty = tty;
327
328 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
329 |INLCR|IGNCR|ICRNL|IXON);
330 tty.c_oflag |= OPOST;
331 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
332 tty.c_cflag &= ~(CSIZE|PARENB);
333 tty.c_cflag |= CS8;
334 tty.c_cc[VMIN] = 1;
335 tty.c_cc[VTIME] = 0;
336
337 tcsetattr (0, TCSANOW, &tty);
338 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
339 #endif
340
341 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
342 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
343 /*
344 register a function to be called at normal program termination
345 */
346 atexit(term_exit);
347 #ifdef CONFIG_BEOS_NETSERVER
348 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
349 #endif
350 }
351
352 /* read a key without blocking */
353 static int read_key(void)
354 {
355 #if defined(HAVE_TERMIOS_H)
356 int n = 1;
357 unsigned char ch;
358 #ifndef CONFIG_BEOS_NETSERVER
359 struct timeval tv;
360 fd_set rfds;
361
362 FD_ZERO(&rfds);
363 FD_SET(0, &rfds);
364 tv.tv_sec = 0;
365 tv.tv_usec = 0;
366 n = select(1, &rfds, NULL, NULL, &tv);
367 #endif
368 if (n > 0) {
369 n = read(0, &ch, 1);
370 if (n == 1)
371 return ch;
372
373 return n;
374 }
375 #elif defined(HAVE_CONIO_H)
376 if(kbhit())
377 return(getch());
378 #endif
379 return -1;
380 }
381
382 static int decode_interrupt_cb(void)
383 {
384 return q_pressed || (q_pressed = read_key() == 'q');
385 }
386
387 static int av_exit(int ret)
388 {
389 int i;
390
391 /* close files */
392 for(i=0;i<nb_output_files;i++) {
393 /* maybe av_close_output_file ??? */
394 AVFormatContext *s = output_files[i];
395 int j;
396 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
397 url_fclose(s->pb);
398 for(j=0;j<s->nb_streams;j++) {
399 av_free(s->streams[j]->codec);
400 av_free(s->streams[j]);
401 }
402 av_free(s);
403 }
404 for(i=0;i<nb_input_files;i++)
405 av_close_input_file(input_files[i]);
406
407 av_free(intra_matrix);
408 av_free(inter_matrix);
409
410 if (vstats_file)
411 fclose(vstats_file);
412 av_free(vstats_filename);
413
414 av_free(opt_names);
415
416 av_free(video_codec_name);
417 av_free(audio_codec_name);
418 av_free(subtitle_codec_name);
419
420 av_free(video_standard);
421
422 #ifdef CONFIG_POWERPC_PERF
423 void powerpc_display_perf_report(void);
424 powerpc_display_perf_report();
425 #endif /* CONFIG_POWERPC_PERF */
426
427 if (received_sigterm) {
428 fprintf(stderr,
429 "Received signal %d: terminating.\n",
430 (int) received_sigterm);
431 exit (255);
432 }
433
434 exit(ret); /* not all OS-es handle main() return value */
435 return ret;
436 }
437
438 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
439 {
440 int i, err;
441 AVFormatContext *ic;
442 int nopts = 0;
443
444 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
445 if (err < 0)
446 return err;
447 /* copy stream format */
448 s->nb_streams = ic->nb_streams;
449 for(i=0;i<ic->nb_streams;i++) {
450 AVStream *st;
451
452 // FIXME: a more elegant solution is needed
453 st = av_mallocz(sizeof(AVStream));
454 memcpy(st, ic->streams[i], sizeof(AVStream));
455 st->codec = avcodec_alloc_context();
456 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
457 s->streams[i] = st;
458
459 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
460 st->stream_copy = 1;
461 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
462 st->stream_copy = 1;
463
464 if(!st->codec->thread_count)
465 st->codec->thread_count = 1;
466 if(st->codec->thread_count>1)
467 avcodec_thread_init(st->codec, st->codec->thread_count);
468
469 if(st->codec->flags & CODEC_FLAG_BITEXACT)
470 nopts = 1;
471 }
472
473 if (!nopts)
474 s->timestamp = av_gettime();
475
476 av_close_input_file(ic);
477 return 0;
478 }
479
480 static double
481 get_sync_ipts(const AVOutputStream *ost)
482 {
483 const AVInputStream *ist = ost->sync_ist;
484 return (double)(ist->pts - start_time)/AV_TIME_BASE;
485 }
486
487 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
488 int ret;
489
490 while(bsfc){
491 AVPacket new_pkt= *pkt;
492 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
493 &new_pkt.data, &new_pkt.size,
494 pkt->data, pkt->size,
495 pkt->flags & PKT_FLAG_KEY);
496 if(a>0){
497 av_free_packet(pkt);
498 new_pkt.destruct= av_destruct_packet;
499 } else if(a<0){
500 fprintf(stderr, "%s failed for stream %d, codec %s",
501 bsfc->filter->name, pkt->stream_index,
502 avctx->codec ? avctx->codec->name : "copy");
503 print_error("", a);
504 if (exit_on_error)
505 av_exit(1);
506 }
507 *pkt= new_pkt;
508
509 bsfc= bsfc->next;
510 }
511
512 ret= av_interleaved_write_frame(s, pkt);
513 if(ret < 0){
514 print_error("av_interleaved_write_frame()", ret);
515 av_exit(1);
516 }
517 }
518
519 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
520
521 static void do_audio_out(AVFormatContext *s,
522 AVOutputStream *ost,
523 AVInputStream *ist,
524 unsigned char *buf, int size)
525 {
526 uint8_t *buftmp;
527 static uint8_t *audio_buf = NULL;
528 static uint8_t *audio_out = NULL;
529 static uint8_t *audio_out2 = NULL;
530 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
531
532 int size_out, frame_bytes, ret;
533 AVCodecContext *enc= ost->st->codec;
534 AVCodecContext *dec= ist->st->codec;
535 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
536 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
537
538 /* SC: dynamic allocation of buffers */
539 if (!audio_buf)
540 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
541 if (!audio_out)
542 audio_out = av_malloc(audio_out_size);
543 if (!audio_buf || !audio_out)
544 return; /* Should signal an error ! */
545
546 if (enc->channels != dec->channels)
547 ost->audio_resample = 1;
548
549 if (ost->audio_resample && !ost->resample) {
550 if (dec->sample_fmt != SAMPLE_FMT_S16) {
551 fprintf(stderr, "Audio resampler only works with 16 bits per sample, patch welcome.\n");
552 av_exit(1);
553 }
554 ost->resample = audio_resample_init(enc->channels, dec->channels,
555 enc->sample_rate, dec->sample_rate);
556 if (!ost->resample) {
557 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
558 dec->channels, dec->sample_rate,
559 enc->channels, enc->sample_rate);
560 av_exit(1);
561 }
562 }
563
564 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
565 if (dec->sample_fmt!=enc->sample_fmt &&
566 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
567 if (!audio_out2)
568 audio_out2 = av_malloc(audio_out_size);
569 if (!audio_out2)
570 av_exit(1);
571 if (ost->reformat_ctx)
572 av_audio_convert_free(ost->reformat_ctx);
573 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
574 dec->sample_fmt, 1, NULL, 0);
575 if (!ost->reformat_ctx) {
576 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
577 avcodec_get_sample_fmt_name(dec->sample_fmt),
578 avcodec_get_sample_fmt_name(enc->sample_fmt));
579 av_exit(1);
580 }
581 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
582 }
583
584 if(audio_sync_method){
585 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
586 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
587 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
588 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
589
590 //FIXME resample delay
591 if(fabs(delta) > 50){
592 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
593 if(byte_delta < 0){
594 byte_delta= FFMAX(byte_delta, -size);
595 size += byte_delta;
596 buf -= byte_delta;
597 if(verbose > 2)
598 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
599 if(!size)
600 return;
601 ist->is_start=0;
602 }else{
603 static uint8_t *input_tmp= NULL;
604 input_tmp= av_realloc(input_tmp, byte_delta + size);
605
606 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
607 ist->is_start=0;
608 else
609 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
610
611 memset(input_tmp, 0, byte_delta);
612 memcpy(input_tmp + byte_delta, buf, size);
613 buf= input_tmp;
614 size += byte_delta;
615 if(verbose > 2)
616 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
617 }
618 }else if(audio_sync_method>1){
619 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
620 assert(ost->audio_resample);
621 if(verbose > 2)
622 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
623 // 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));
624 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
625 }
626 }
627 }else
628 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
629 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
630
631 if (ost->audio_resample) {
632 buftmp = audio_buf;
633 size_out = audio_resample(ost->resample,
634 (short *)buftmp, (short *)buf,
635 size / (ist->st->codec->channels * isize));
636 size_out = size_out * enc->channels * osize;
637 } else {
638 buftmp = buf;
639 size_out = size;
640 }
641
642 if (dec->sample_fmt!=enc->sample_fmt) {
643 const void *ibuf[6]= {buftmp};
644 void *obuf[6]= {audio_out2};
645 int istride[6]= {isize};
646 int ostride[6]= {osize};
647 int len= size_out/istride[0];
648 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
649 printf("av_audio_convert() failed\n");
650 if (exit_on_error)
651 av_exit(1);
652 return;
653 }
654 buftmp = audio_out2;
655 size_out = len*osize;
656 }
657
658 /* now encode as many frames as possible */
659 if (enc->frame_size > 1) {
660 /* output resampled raw samples */
661 if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
662 fprintf(stderr, "av_fifo_realloc2() failed\n");
663 av_exit(1);
664 }
665 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
666
667 frame_bytes = enc->frame_size * osize * enc->channels;
668
669 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
670 AVPacket pkt;
671 av_init_packet(&pkt);
672
673 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
674
675 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
676
677 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
678 (short *)audio_buf);
679 audio_size += ret;
680 pkt.stream_index= ost->index;
681 pkt.data= audio_out;
682 pkt.size= ret;
683 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
684 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
685 pkt.flags |= PKT_FLAG_KEY;
686 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
687
688 ost->sync_opts += enc->frame_size;
689 }
690 } else {
691 AVPacket pkt;
692 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
693 av_init_packet(&pkt);
694
695 ost->sync_opts += size_out / (osize * enc->channels);
696
697 /* output a pcm frame */
698 /* determine the size of the coded buffer */
699 size_out /= osize;
700 if (coded_bps)
701 size_out *= coded_bps;
702
703 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
704 ret = avcodec_encode_audio(enc, audio_out, size_out,
705 (short *)buftmp);
706 audio_size += ret;
707 pkt.stream_index= ost->index;
708 pkt.data= audio_out;
709 pkt.size= ret;
710 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
711 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
712 pkt.flags |= PKT_FLAG_KEY;
713 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
714 }
715 }
716
717 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
718 {
719 AVCodecContext *dec;
720 AVPicture *picture2;
721 AVPicture picture_tmp;
722 uint8_t *buf = 0;
723
724 dec = ist->st->codec;
725
726 /* deinterlace : must be done before any resize */
727 if (do_deinterlace || using_vhook) {
728 int size;
729
730 /* create temporary picture */
731 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
732 buf = av_malloc(size);
733 if (!buf)
734 return;
735
736 picture2 = &picture_tmp;
737 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
738
739 if (do_deinterlace){
740 if(avpicture_deinterlace(picture2, picture,
741 dec->pix_fmt, dec->width, dec->height) < 0) {
742 /* if error, do not deinterlace */
743 fprintf(stderr, "Deinterlacing failed\n");
744 av_free(buf);
745 buf = NULL;
746 picture2 = picture;
747 }
748 } else {
749 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
750 }
751 } else {
752 picture2 = picture;
753 }
754
755 if (ENABLE_VHOOK)
756 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
757 1000000 * ist->pts / AV_TIME_BASE);
758
759 if (picture != picture2)
760 *picture = *picture2;
761 *bufp = buf;
762 }
763
764 /* we begin to correct av delay at this threshold */
765 #define AV_DELAY_MAX 0.100
766
767 static void do_subtitle_out(AVFormatContext *s,
768 AVOutputStream *ost,
769 AVInputStream *ist,
770 AVSubtitle *sub,
771 int64_t pts)
772 {
773 static uint8_t *subtitle_out = NULL;
774 int subtitle_out_max_size = 65536;
775 int subtitle_out_size, nb, i;
776 AVCodecContext *enc;
777 AVPacket pkt;
778
779 if (pts == AV_NOPTS_VALUE) {
780 fprintf(stderr, "Subtitle packets must have a pts\n");
781 if (exit_on_error)
782 av_exit(1);
783 return;
784 }
785
786 enc = ost->st->codec;
787
788 if (!subtitle_out) {
789 subtitle_out = av_malloc(subtitle_out_max_size);
790 }
791
792 /* Note: DVB subtitle need one packet to draw them and one other
793 packet to clear them */
794 /* XXX: signal it in the codec context ? */
795 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
796 nb = 2;
797 else
798 nb = 1;
799
800 for(i = 0; i < nb; i++) {
801 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
802 subtitle_out_max_size, sub);
803
804 av_init_packet(&pkt);
805 pkt.stream_index = ost->index;
806 pkt.data = subtitle_out;
807 pkt.size = subtitle_out_size;
808 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
809 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
810 /* XXX: the pts correction is handled here. Maybe handling
811 it in the codec would be better */
812 if (i == 0)
813 pkt.pts += 90 * sub->start_display_time;
814 else
815 pkt.pts += 90 * sub->end_display_time;
816 }
817 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
818 }
819 }
820
821 static int bit_buffer_size= 1024*256;
822 static uint8_t *bit_buffer= NULL;
823
824 static void do_video_out(AVFormatContext *s,
825 AVOutputStream *ost,
826 AVInputStream *ist,
827 AVFrame *in_picture,
828 int *frame_size)
829 {
830 int nb_frames, i, ret;
831 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
832 AVFrame picture_crop_temp, picture_pad_temp;
833 AVCodecContext *enc, *dec;
834
835 avcodec_get_frame_defaults(&picture_crop_temp);
836 avcodec_get_frame_defaults(&picture_pad_temp);
837
838 enc = ost->st->codec;
839 dec = ist->st->codec;
840
841 /* by default, we output a single frame */
842 nb_frames = 1;
843
844 *frame_size = 0;
845
846 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
847 double vdelta;
848 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
849 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
850 if (vdelta < -1.1)
851 nb_frames = 0;
852 else if (video_sync_method == 2)
853 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
854 else if (vdelta > 1.1)
855 nb_frames = lrintf(vdelta);
856 //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);
857 if (nb_frames == 0){
858 ++nb_frames_drop;
859 if (verbose>2)
860 fprintf(stderr, "*** drop!\n");
861 }else if (nb_frames > 1) {
862 nb_frames_dup += nb_frames;
863 if (verbose>2)
864 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
865 }
866 }else
867 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
868
869 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
870 if (nb_frames <= 0)
871 return;
872
873 if (ost->video_crop) {
874 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
875 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
876 if (exit_on_error)
877 av_exit(1);
878 return;
879 }
880 formatted_picture = &picture_crop_temp;
881 } else {
882 formatted_picture = in_picture;
883 }
884
885 final_picture = formatted_picture;
886 padding_src = formatted_picture;
887 resampling_dst = &ost->pict_tmp;
888 if (ost->video_pad) {
889 final_picture = &ost->pict_tmp;
890 if (ost->video_resample) {
891 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
892 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
893 if (exit_on_error)
894 av_exit(1);
895 return;
896 }
897 resampling_dst = &picture_pad_temp;
898 }
899 }
900
901 if (ost->video_resample) {
902 padding_src = NULL;
903 final_picture = &ost->pict_tmp;
904 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
905 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
906 }
907
908 if (ost->video_pad) {
909 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
910 enc->height, enc->width, enc->pix_fmt,
911 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
912 }
913
914 /* duplicates frame if needed */
915 for(i=0;i<nb_frames;i++) {
916 AVPacket pkt;
917 av_init_packet(&pkt);
918 pkt.stream_index= ost->index;
919
920 if (s->oformat->flags & AVFMT_RAWPICTURE) {
921 /* raw pictures are written as AVPicture structure to
922 avoid any copies. We support temorarily the older
923 method. */
924 AVFrame* old_frame = enc->coded_frame;
925 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
926 pkt.data= (uint8_t *)final_picture;
927 pkt.size= sizeof(AVPicture);
928 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
929 pkt.flags |= PKT_FLAG_KEY;
930
931 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
932 enc->coded_frame = old_frame;
933 } else {
934 AVFrame big_picture;
935
936 big_picture= *final_picture;
937 /* better than nothing: use input picture interlaced
938 settings */
939 big_picture.interlaced_frame = in_picture->interlaced_frame;
940 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
941 if(top_field_first == -1)
942 big_picture.top_field_first = in_picture->top_field_first;
943 else
944 big_picture.top_field_first = top_field_first;
945 }
946
947 /* handles sameq here. This is not correct because it may
948 not be a global option */
949 if (same_quality) {
950 big_picture.quality = ist->st->quality;
951 }else
952 big_picture.quality = ost->st->quality;
953 if(!me_threshold)
954 big_picture.pict_type = 0;
955 // big_picture.pts = AV_NOPTS_VALUE;
956 big_picture.pts= ost->sync_opts;
957 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
958 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
959 ret = avcodec_encode_video(enc,
960 bit_buffer, bit_buffer_size,
961 &big_picture);
962 if (ret == -1) {
963 fprintf(stderr, "Video encoding failed\n");
964 av_exit(1);
965 }
966 //enc->frame_number = enc->real_pict_num;
967 if(ret>0){
968 pkt.data= bit_buffer;
969 pkt.size= ret;
970 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
971 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
972 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
973 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
974 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
975
976 if(enc->coded_frame->key_frame)
977 pkt.flags |= PKT_FLAG_KEY;
978 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
979 *frame_size = ret;
980 video_size += ret;
981 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
982 // enc->frame_number-1, enc->real_pict_num, ret,
983 // enc->pict_type);
984 /* if two pass, output log */
985 if (ost->logfile && enc->stats_out) {
986 fprintf(ost->logfile, "%s", enc->stats_out);
987 }
988 }
989 }
990 ost->sync_opts++;
991 ost->frame_number++;
992 }
993 }
994
995 static double psnr(double d){
996 return -10.0*log(d)/log(10.0);
997 }
998
999 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1000 int frame_size)
1001 {
1002 AVCodecContext *enc;
1003 int frame_number;
1004 double ti1, bitrate, avg_bitrate;
1005
1006 /* this is executed just the first time do_video_stats is called */
1007 if (!vstats_file) {
1008 vstats_file = fopen(vstats_filename, "w");
1009 if (!vstats_file) {
1010 perror("fopen");
1011 av_exit(1);
1012 }
1013 }
1014
1015 enc = ost->st->codec;
1016 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1017 frame_number = ost->frame_number;
1018 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1019 if (enc->flags&CODEC_FLAG_PSNR)
1020 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1021
1022 fprintf(vstats_file,"f_size= %6d ", frame_size);
1023 /* compute pts value */
1024 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1025 if (ti1 < 0.01)
1026 ti1 = 0.01;
1027
1028 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1029 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1030 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1031 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1032 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1033 }
1034 }
1035
1036 static void print_report(AVFormatContext **output_files,
1037 AVOutputStream **ost_table, int nb_ostreams,
1038 int is_last_report)
1039 {
1040 char buf[1024];
1041 AVOutputStream *ost;
1042 AVFormatContext *oc, *os;
1043 int64_t total_size;
1044 AVCodecContext *enc;
1045 int frame_number, vid, i;
1046 double bitrate, ti1, pts;
1047 static int64_t last_time = -1;
1048 static int qp_histogram[52];
1049
1050 if (!is_last_report) {
1051 int64_t cur_time;
1052 /* display the report every 0.5 seconds */
1053 cur_time = av_gettime();
1054 if (last_time == -1) {
1055 last_time = cur_time;
1056 return;
1057 }
1058 if ((cur_time - last_time) < 500000)
1059 return;
1060 last_time = cur_time;
1061 }
1062
1063
1064 oc = output_files[0];
1065
1066 total_size = url_fsize(oc->pb);
1067 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1068 total_size= url_ftell(oc->pb);
1069
1070 buf[0] = '\0';
1071 ti1 = 1e10;
1072 vid = 0;
1073 for(i=0;i<nb_ostreams;i++) {
1074 ost = ost_table[i];
1075 os = output_files[ost->file_index];
1076 enc = ost->st->codec;
1077 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1078 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1079 !ost->st->stream_copy ?
1080 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1081 }
1082 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1083 float t = (av_gettime()-timer_start) / 1000000.0;
1084
1085 frame_number = ost->frame_number;
1086 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1087 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1088 !ost->st->stream_copy ?
1089 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1090 if(is_last_report)
1091 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1092 if(qp_hist){
1093 int j;
1094 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1095 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1096 qp_histogram[qp]++;
1097 for(j=0; j<32; j++)
1098 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1099 }
1100 if (enc->flags&CODEC_FLAG_PSNR){
1101 int j;
1102 double error, error_sum=0;
1103 double scale, scale_sum=0;
1104 char type[3]= {'Y','U','V'};
1105 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1106 for(j=0; j<3; j++){
1107 if(is_last_report){
1108 error= enc->error[j];
1109 scale= enc->width*enc->height*255.0*255.0*frame_number;
1110 }else{
1111 error= enc->coded_frame->error[j];
1112 scale= enc->width*enc->height*255.0*255.0;
1113 }
1114 if(j) scale/=4;
1115 error_sum += error;
1116 scale_sum += scale;
1117 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1118 }
1119 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1120 }
1121 vid = 1;
1122 }
1123 /* compute min output value */
1124 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1125 if ((pts < ti1) && (pts > 0))
1126 ti1 = pts;
1127 }
1128 if (ti1 < 0.01)
1129 ti1 = 0.01;
1130
1131 if (verbose || is_last_report) {
1132 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1133
1134 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1135 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1136 (double)total_size / 1024, ti1, bitrate);
1137
1138 if (verbose > 1)
1139 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1140 nb_frames_dup, nb_frames_drop);
1141
1142 if (verbose >= 0)
1143 fprintf(stderr, "%s \r", buf);
1144
1145 fflush(stderr);
1146 }
1147
1148 if (is_last_report && verbose >= 0){
1149 int64_t raw= audio_size + video_size + extra_size;
1150 fprintf(stderr, "\n");
1151 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1152 video_size/1024.0,
1153 audio_size/1024.0,
1154 extra_size/1024.0,
1155 100.0*(total_size - raw)/raw
1156 );
1157 }
1158 }
1159
1160 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1161 static int output_packet(AVInputStream *ist, int ist_index,
1162 AVOutputStream **ost_table, int nb_ostreams,
1163 const AVPacket *pkt)
1164 {
1165 AVFormatContext *os;
1166 AVOutputStream *ost;
1167 uint8_t *ptr;
1168 int len, ret, i;
1169 uint8_t *data_buf;
1170 int data_size, got_picture;
1171 AVFrame picture;
1172 void *buffer_to_free;
1173 static unsigned int samples_size= 0;
1174 static short *samples= NULL;
1175 AVSubtitle subtitle, *subtitle_to_free;
1176 int got_subtitle;
1177
1178 if(ist->next_pts == AV_NOPTS_VALUE)
1179 ist->next_pts= ist->pts;
1180
1181 if (pkt == NULL) {
1182 /* EOF handling */
1183 ptr = NULL;
1184 len = 0;
1185 goto handle_eof;
1186 }
1187
1188 if(pkt->dts != AV_NOPTS_VALUE)
1189 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1190
1191 len = pkt->size;
1192 ptr = pkt->data;
1193
1194 //while we have more to decode or while the decoder did output something on EOF
1195 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1196 handle_eof:
1197 ist->pts= ist->next_pts;
1198
1199 if(len && len != pkt->size && verbose>0)
1200 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1201
1202 /* decode the packet if needed */
1203 data_buf = NULL; /* fail safe */
1204 data_size = 0;
1205 subtitle_to_free = NULL;
1206 if (ist->decoding_needed) {
1207 switch(ist->st->codec->codec_type) {
1208 case CODEC_TYPE_AUDIO:{
1209 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1210 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1211 av_free(samples);
1212 samples= av_malloc(samples_size);
1213 }
1214 data_size= samples_size;
1215 /* XXX: could avoid copy if PCM 16 bits with same
1216 endianness as CPU */
1217 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1218 ptr, len);
1219 if (ret < 0)
1220 goto fail_decode;
1221 ptr += ret;
1222 len -= ret;
1223 /* Some bug in mpeg audio decoder gives */
1224 /* data_size < 0, it seems they are overflows */
1225 if (data_size <= 0) {
1226 /* no audio frame */
1227 continue;
1228 }
1229 data_buf = (uint8_t *)samples;
1230 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1231 (ist->st->codec->sample_rate * ist->st->codec->channels);
1232 break;}
1233 case CODEC_TYPE_VIDEO:
1234 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1235 /* XXX: allocate picture correctly */
1236 avcodec_get_frame_defaults(&picture);
1237
1238 ret = avcodec_decode_video(ist->st->codec,
1239 &picture, &got_picture, ptr, len);
1240 ist->st->quality= picture.quality;
1241 if (ret < 0)
1242 goto fail_decode;
1243 if (!got_picture) {
1244 /* no picture yet */
1245 goto discard_packet;
1246 }
1247 if (ist->st->codec->time_base.num != 0) {
1248 ist->next_pts += ((int64_t)AV_TIME_BASE *
1249 ist->st->codec->time_base.num) /
1250 ist->st->codec->time_base.den;
1251 }
1252 len = 0;
1253 break;
1254 case CODEC_TYPE_SUBTITLE:
1255 ret = avcodec_decode_subtitle(ist->st->codec,
1256 &subtitle, &got_subtitle, ptr, len);
1257 if (ret < 0)
1258 goto fail_decode;
1259 if (!got_subtitle) {
1260 goto discard_packet;
1261 }
1262 subtitle_to_free = &subtitle;
1263 len = 0;
1264 break;
1265 default:
1266 goto fail_decode;
1267 }
1268 } else {
1269 switch(ist->st->codec->codec_type) {
1270 case CODEC_TYPE_AUDIO:
1271 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1272 ist->st->codec->sample_rate;
1273 break;
1274 case CODEC_TYPE_VIDEO:
1275 if (ist->st->codec->time_base.num != 0) {
1276 ist->next_pts += ((int64_t)AV_TIME_BASE *
1277 ist->st->codec->time_base.num) /
1278 ist->st->codec->time_base.den;
1279 }
1280 break;
1281 }
1282 data_buf = ptr;
1283 data_size = len;
1284 ret = len;
1285 len = 0;
1286 }
1287
1288 buffer_to_free = NULL;
1289 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1290 pre_process_video_frame(ist, (AVPicture *)&picture,
1291 &buffer_to_free);
1292 }
1293
1294 // preprocess audio (volume)
1295 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1296 if (audio_volume != 256) {
1297 short *volp;
1298 volp = samples;
1299 for(i=0;i<(data_size / sizeof(short));i++) {
1300 int v = ((*volp) * audio_volume + 128) >> 8;
1301 if (v < -32768) v = -32768;
1302 if (v > 32767) v = 32767;
1303 *volp++ = v;
1304 }
1305 }
1306 }
1307
1308 /* frame rate emulation */
1309 if (rate_emu) {
1310 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1311 int64_t now = av_gettime() - ist->start;
1312 if (pts > now)
1313 usleep(pts - now);
1314 }
1315
1316 /* if output time reached then transcode raw format,
1317 encode packets and output them */
1318 if (start_time == 0 || ist->pts >= start_time)
1319 for(i=0;i<nb_ostreams;i++) {
1320 int frame_size;
1321
1322 ost = ost_table[i];
1323 if (ost->source_index == ist_index) {
1324 os = output_files[ost->file_index];
1325
1326 #if 0
1327 printf("%d: got pts=%0.3f %0.3f\n", i,
1328 (double)pkt->pts / AV_TIME_BASE,
1329 ((double)ist->pts / AV_TIME_BASE) -
1330 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1331 #endif
1332 /* set the input output pts pairs */
1333 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1334
1335 if (ost->encoding_needed) {
1336 switch(ost->st->codec->codec_type) {
1337 case CODEC_TYPE_AUDIO:
1338 do_audio_out(os, ost, ist, data_buf, data_size);
1339 break;
1340 case CODEC_TYPE_VIDEO:
1341 do_video_out(os, ost, ist, &picture, &frame_size);
1342 if (vstats_filename && frame_size)
1343 do_video_stats(os, ost, frame_size);
1344 break;
1345 case CODEC_TYPE_SUBTITLE:
1346 do_subtitle_out(os, ost, ist, &subtitle,
1347 pkt->pts);
1348 break;
1349 default:
1350 abort();
1351 }
1352 } else {
1353 AVFrame avframe; //FIXME/XXX remove this
1354 AVPacket opkt;
1355 av_init_packet(&opkt);
1356
1357 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1358 continue;
1359
1360 /* no reencoding needed : output the packet directly */
1361 /* force the input stream PTS */
1362
1363 avcodec_get_frame_defaults(&avframe);
1364 ost->st->codec->coded_frame= &avframe;
1365 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1366
1367 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1368 audio_size += data_size;
1369 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1370 video_size += data_size;
1371 ost->sync_opts++;
1372 }
1373
1374 opkt.stream_index= ost->index;
1375 if(pkt->pts != AV_NOPTS_VALUE)
1376 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1377 else
1378 opkt.pts= AV_NOPTS_VALUE;
1379
1380 if (pkt->dts == AV_NOPTS_VALUE)
1381 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1382 else
1383 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1384
1385 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1386 opkt.flags= pkt->flags;
1387
1388 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1389 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1390 opkt.destruct= av_destruct_packet;
1391
1392 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1393 ost->st->codec->frame_number++;
1394 ost->frame_number++;
1395 av_free_packet(&opkt);
1396 }
1397 }
1398 }
1399 av_free(buffer_to_free);
1400 /* XXX: allocate the subtitles in the codec ? */
1401 if (subtitle_to_free) {
1402 if (subtitle_to_free->rects != NULL) {
1403 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1404 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1405 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1406 av_freep(&subtitle_to_free->rects[i]);
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 fflush(stdout);
1492 }
1493
1494 static int stream_index_from_inputs(AVFormatContext **input_files,
1495 int nb_input_files,
1496 AVInputFile *file_table,
1497 AVInputStream **ist_table,
1498 enum CodecType type,
1499 int programid)
1500 {
1501 int p, q, z;
1502 for(z=0; z<nb_input_files; z++) {
1503 AVFormatContext *ic = input_files[z];
1504 for(p=0; p<ic->nb_programs; p++) {
1505 AVProgram *program = ic->programs[p];
1506 if(program->id != programid)
1507 continue;
1508 for(q=0; q<program->nb_stream_indexes; q++) {
1509 int sidx = program->stream_index[q];
1510 int ris = file_table[z].ist_index + sidx;
1511 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1512 return ris;
1513 }
1514 }
1515 }
1516
1517 return -1;
1518 }
1519
1520 /*
1521 * The following code is the main loop of the file converter
1522 */
1523 static int av_encode(AVFormatContext **output_files,
1524 int nb_output_files,
1525 AVFormatContext **input_files,
1526 int nb_input_files,
1527 AVStreamMap *stream_maps, int nb_stream_maps)
1528 {
1529 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1530 AVFormatContext *is, *os;
1531 AVCodecContext *codec, *icodec;
1532 AVOutputStream *ost, **ost_table = NULL;
1533 AVInputStream *ist, **ist_table = NULL;
1534 AVInputFile *file_table;
1535 int key;
1536 int want_sdp = 1;
1537
1538 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1539 if (!file_table)
1540 goto fail;
1541
1542 /* input stream init */
1543 j = 0;
1544 for(i=0;i<nb_input_files;i++) {
1545 is = input_files[i];
1546 file_table[i].ist_index = j;
1547 file_table[i].nb_streams = is->nb_streams;
1548 j += is->nb_streams;
1549 }
1550 nb_istreams = j;
1551
1552 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1553 if (!ist_table)
1554 goto fail;
1555
1556 for(i=0;i<nb_istreams;i++) {
1557 ist = av_mallocz(sizeof(AVInputStream));
1558 if (!ist)
1559 goto fail;
1560 ist_table[i] = ist;
1561 }
1562 j = 0;
1563 for(i=0;i<nb_input_files;i++) {
1564 is = input_files[i];
1565 for(k=0;k<is->nb_streams;k++) {
1566 ist = ist_table[j++];
1567 ist->st = is->streams[k];
1568 ist->file_index = i;
1569 ist->index = k;
1570 ist->discard = 1; /* the stream is discarded by default
1571 (changed later) */
1572
1573 if (rate_emu) {
1574 ist->start = av_gettime();
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 dump_format(output_files[i], i, output_files[i]->filename, 1);
1585 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1586 av_exit(1);
1587 }
1588 nb_ostreams += os->nb_streams;
1589 }
1590 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1591 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1592 av_exit(1);
1593 }
1594
1595 /* Sanity check the mapping args -- do the input files & streams exist? */
1596 for(i=0;i<nb_stream_maps;i++) {
1597 int fi = stream_maps[i].file_index;
1598 int si = stream_maps[i].stream_index;
1599
1600 if (fi < 0 || fi > nb_input_files - 1 ||
1601 si < 0 || si > file_table[fi].nb_streams - 1) {
1602 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1603 av_exit(1);
1604 }
1605 fi = stream_maps[i].sync_file_index;
1606 si = stream_maps[i].sync_stream_index;
1607 if (fi < 0 || fi > nb_input_files - 1 ||
1608 si < 0 || si > file_table[fi].nb_streams - 1) {
1609 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1610 av_exit(1);
1611 }
1612 }
1613
1614 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1615 if (!ost_table)
1616 goto fail;
1617 for(i=0;i<nb_ostreams;i++) {
1618 ost = av_mallocz(sizeof(AVOutputStream));
1619 if (!ost)
1620 goto fail;
1621 ost_table[i] = ost;
1622 }
1623
1624 n = 0;
1625 for(k=0;k<nb_output_files;k++) {
1626 os = output_files[k];
1627 for(i=0;i<os->nb_streams;i++,n++) {
1628 int found;
1629 ost = ost_table[n];
1630 ost->file_index = k;
1631 ost->index = i;
1632 ost->st = os->streams[i];
1633 if (nb_stream_maps > 0) {
1634 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1635 stream_maps[n].stream_index;
1636
1637 /* Sanity check that the stream types match */
1638 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1639 int i= ost->file_index;
1640 dump_format(output_files[i], i, output_files[i]->filename, 1);
1641 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1642 stream_maps[n].file_index, stream_maps[n].stream_index,
1643 ost->file_index, ost->index);
1644 av_exit(1);
1645 }
1646
1647 } else {
1648 if(opt_programid) {
1649 found = 0;
1650 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1651 if(j != -1) {
1652 ost->source_index = j;
1653 found = 1;
1654 }
1655 } else {
1656 /* get corresponding input stream index : we select the first one with the right type */
1657 found = 0;
1658 for(j=0;j<nb_istreams;j++) {
1659 ist = ist_table[j];
1660 if (ist->discard &&
1661 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1662 ost->source_index = j;
1663 found = 1;
1664 break;
1665 }
1666 }
1667 }
1668
1669 if (!found) {
1670 if(! opt_programid) {
1671 /* try again and reuse existing stream */
1672 for(j=0;j<nb_istreams;j++) {
1673 ist = ist_table[j];
1674 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1675 ost->source_index = j;
1676 found = 1;
1677 }
1678 }
1679 }
1680 if (!found) {
1681 int i= ost->file_index;
1682 dump_format(output_files[i], i, output_files[i]->filename, 1);
1683 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1684 ost->file_index, ost->index);
1685 av_exit(1);
1686 }
1687 }
1688 }
1689 ist = ist_table[ost->source_index];
1690 ist->discard = 0;
1691 ost->sync_ist = (nb_stream_maps > 0) ?
1692 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1693 stream_maps[n].sync_stream_index] : ist;
1694 }
1695 }
1696
1697 /* for each output stream, we compute the right encoding parameters */
1698 for(i=0;i<nb_ostreams;i++) {
1699 ost = ost_table[i];
1700 os = output_files[ost->file_index];
1701 ist = ist_table[ost->source_index];
1702
1703 codec = ost->st->codec;
1704 icodec = ist->st->codec;
1705
1706 if (!ost->st->language[0])
1707 av_strlcpy(ost->st->language, ist->st->language,
1708 sizeof(ost->st->language));
1709
1710 ost->st->disposition = ist->st->disposition;
1711
1712 if (ost->st->stream_copy) {
1713 /* if stream_copy is selected, no need to decode or encode */
1714 codec->codec_id = icodec->codec_id;
1715 codec->codec_type = icodec->codec_type;
1716
1717 if(!codec->codec_tag){
1718 if( !os->oformat->codec_tag
1719 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1720 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1721 codec->codec_tag = icodec->codec_tag;
1722 }
1723
1724 codec->bit_rate = icodec->bit_rate;
1725 codec->extradata= icodec->extradata;
1726 codec->extradata_size= icodec->extradata_size;
1727 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1728 codec->time_base = icodec->time_base;
1729 else
1730 codec->time_base = ist->st->time_base;
1731 switch(codec->codec_type) {
1732 case CODEC_TYPE_AUDIO:
1733 if(audio_volume != 256) {
1734 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1735 av_exit(1);
1736 }
1737 codec->channel_layout = icodec->channel_layout;
1738 codec->sample_rate = icodec->sample_rate;
1739 codec->channels = icodec->channels;
1740 codec->frame_size = icodec->frame_size;
1741 codec->block_align= icodec->block_align;
1742 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1743 codec->block_align= 0;
1744 if(codec->codec_id == CODEC_ID_AC3)
1745 codec->block_align= 0;
1746 break;
1747 case CODEC_TYPE_VIDEO:
1748 if(using_vhook) {
1749 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1750 av_exit(1);
1751 }
1752 codec->pix_fmt = icodec->pix_fmt;
1753 codec->width = icodec->width;
1754 codec->height = icodec->height;
1755 codec->has_b_frames = icodec->has_b_frames;
1756 break;
1757 case CODEC_TYPE_SUBTITLE:
1758 break;
1759 default:
1760 abort();
1761 }
1762 } else {
1763 switch(codec->codec_type) {
1764 case CODEC_TYPE_AUDIO:
1765 if (av_fifo_init(&ost->fifo, 1024))
1766 goto fail;
1767 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1768 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1769 icodec->request_channels = codec->channels;
1770 ist->decoding_needed = 1;
1771 ost->encoding_needed = 1;
1772 break;
1773 case CODEC_TYPE_VIDEO:
1774 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1775 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1776 ost->video_resample = ((codec->width != icodec->width -
1777 (frame_leftBand + frame_rightBand) +
1778 (frame_padleft + frame_padright)) ||
1779 (codec->height != icodec->height -
1780 (frame_topBand + frame_bottomBand) +
1781 (frame_padtop + frame_padbottom)) ||
1782 (codec->pix_fmt != icodec->pix_fmt));
1783 if (ost->video_crop) {
1784 ost->topBand = frame_topBand;
1785 ost->leftBand = frame_leftBand;
1786 }
1787 if (ost->video_pad) {
1788 ost->padtop = frame_padtop;
1789 ost->padleft = frame_padleft;
1790 ost->padbottom = frame_padbottom;
1791 ost->padright = frame_padright;
1792 if (!ost->video_resample) {
1793 avcodec_get_frame_defaults(&ost->pict_tmp);
1794 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1795 codec->width, codec->height))
1796 goto fail;
1797 }
1798 }
1799 if (ost->video_resample) {
1800 avcodec_get_frame_defaults(&ost->pict_tmp);
1801 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1802 codec->width, codec->height)) {
1803 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1804 av_exit(1);
1805 }
1806 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1807 ost->img_resample_ctx = sws_getContext(
1808 icodec->width - (frame_leftBand + frame_rightBand),
1809 icodec->height - (frame_topBand + frame_bottomBand),
1810 icodec->pix_fmt,
1811 codec->width - (frame_padleft + frame_padright),
1812 codec->height - (frame_padtop + frame_padbottom),
1813 codec->pix_fmt,
1814 sws_flags, NULL, NULL, NULL);
1815 if (ost->img_resample_ctx == NULL) {
1816 fprintf(stderr, "Cannot get resampling context\n");
1817 av_exit(1);
1818 }
1819 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1820 }
1821 ost->encoding_needed = 1;
1822 ist->decoding_needed = 1;
1823 break;
1824 case CODEC_TYPE_SUBTITLE:
1825 ost->encoding_needed = 1;
1826 ist->decoding_needed = 1;
1827 break;
1828 default:
1829 abort();
1830 break;
1831 }
1832 /* two pass mode */
1833 if (ost->encoding_needed &&
1834 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1835 char logfilename[1024];
1836 FILE *f;
1837 int size;
1838 char *logbuffer;
1839
1840 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1841 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1842 i);
1843 if (codec->flags & CODEC_FLAG_PASS1) {
1844 f = fopen(logfilename, "w");
1845 if (!f) {
1846 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1847 av_exit(1);
1848 }
1849 ost->logfile = f;
1850 } else {
1851 /* read the log file */
1852 f = fopen(logfilename, "r");
1853 if (!f) {
1854 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
1855 av_exit(1);
1856 }
1857 fseek(f, 0, SEEK_END);
1858 size = ftell(f);
1859 fseek(f, 0, SEEK_SET);
1860 logbuffer = av_malloc(size + 1);
1861 if (!logbuffer) {
1862 fprintf(stderr, "Could not allocate log buffer\n");
1863 av_exit(1);
1864 }
1865 size = fread(logbuffer, 1, size, f);
1866 fclose(f);
1867 logbuffer[size] = '\0';
1868 codec->stats_in = logbuffer;
1869 }
1870 }
1871 }
1872 if(codec->codec_type == CODEC_TYPE_VIDEO){
1873 int size= codec->width * codec->height;
1874 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1875 }
1876 }
1877
1878 if (!bit_buffer)
1879 bit_buffer = av_malloc(bit_buffer_size);
1880 if (!bit_buffer)
1881 goto fail;
1882
1883 /* dump the file output parameters - cannot be done before in case
1884 of stream copy */
1885 for(i=0;i<nb_output_files;i++) {
1886 dump_format(output_files[i], i, output_files[i]->filename, 1);
1887 }
1888
1889 /* dump the stream mapping */
1890 if (verbose >= 0) {
1891 fprintf(stderr, "Stream mapping:\n");
1892 for(i=0;i<nb_ostreams;i++) {
1893 ost = ost_table[i];
1894 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1895 ist_table[ost->source_index]->file_index,
1896 ist_table[ost->source_index]->index,
1897 ost->file_index,
1898 ost->index);
1899 if (ost->sync_ist != ist_table[ost->source_index])
1900 fprintf(stderr, " [sync #%d.%d]",
1901 ost->sync_ist->file_index,
1902 ost->sync_ist->index);
1903 fprintf(stderr, "\n");
1904 }
1905 }
1906
1907 /* open each encoder */
1908 for(i=0;i<nb_ostreams;i++) {
1909 ost = ost_table[i];
1910 if (ost->encoding_needed) {
1911 AVCodec *codec = output_codecs[i];
1912 if (!codec)
1913 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1914 if (!codec) {
1915 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1916 ost->file_index, ost->index);
1917 av_exit(1);
1918 }
1919 if (avcodec_open(ost->st->codec, codec) < 0) {
1920 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1921 ost->file_index, ost->index);
1922 av_exit(1);
1923 }
1924 extra_size += ost->st->codec->extradata_size;
1925 }
1926 }
1927
1928 /* open each decoder */
1929 for(i=0;i<nb_istreams;i++) {
1930 ist = ist_table[i];
1931 if (ist->decoding_needed) {
1932 AVCodec *codec = input_codecs[i];
1933 if (!codec)
1934 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1935 if (!codec) {
1936 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1937 ist->st->codec->codec_id, ist->file_index, ist->index);
1938 av_exit(1);
1939 }
1940 if (avcodec_open(ist->st->codec, codec) < 0) {
1941 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1942 ist->file_index, ist->index);
1943 av_exit(1);
1944 }
1945 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1946 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1947 }
1948 }
1949
1950 /* init pts */
1951 for(i=0;i<nb_istreams;i++) {
1952 ist = ist_table[i];
1953 is = input_files[ist->file_index];
1954 ist->pts = 0;
1955 ist->next_pts = AV_NOPTS_VALUE;
1956 ist->is_start = 1;
1957 }
1958
1959 /* set meta data information from input file if required */
1960 for (i=0;i<nb_meta_data_maps;i++) {
1961 AVFormatContext *out_file;
1962 AVFormatContext *in_file;
1963
1964 int out_file_index = meta_data_maps[i].out_file;
1965 int in_file_index = meta_data_maps[i].in_file;
1966 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1967 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1968 ret = AVERROR(EINVAL);
1969 goto fail;
1970 }
1971 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1972 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1973 ret = AVERROR(EINVAL);
1974 goto fail;
1975 }
1976
1977 out_file = output_files[out_file_index];
1978 in_file = input_files[in_file_index];
1979
1980 strcpy(out_file->title, in_file->title);
1981 strcpy(out_file->author, in_file->author);
1982 strcpy(out_file->copyright, in_file->copyright);
1983 strcpy(out_file->comment, in_file->comment);
1984 strcpy(out_file->album, in_file->album);
1985 out_file->year = in_file->year;
1986 out_file->track = in_file->track;
1987 strcpy(out_file->genre, in_file->genre);
1988 }
1989
1990 /* open files and write file headers */
1991 for(i=0;i<nb_output_files;i++) {
1992 os = output_files[i];
1993 if (av_write_header(os) < 0) {
1994 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1995 ret = AVERROR(EINVAL);
1996 goto fail;
1997 }
1998 if (strcmp(output_files[i]->oformat->name, "rtp")) {
1999 want_sdp = 0;
2000 }
2001 }
2002 if (want_sdp) {
2003 print_sdp(output_files, nb_output_files);
2004 }
2005
2006 if (!using_stdin && verbose >= 0) {
2007 fprintf(stderr, "Press [q] to stop encoding\n");
2008 url_set_interrupt_cb(decode_interrupt_cb);
2009 }
2010 term_init();
2011
2012 key = -1;
2013 timer_start = av_gettime();
2014
2015 for(; received_sigterm == 0;) {
2016 int file_index, ist_index;
2017 AVPacket pkt;
2018 double ipts_min;
2019 double opts_min;
2020
2021 redo:
2022 ipts_min= 1e100;
2023 opts_min= 1e100;
2024 /* if 'q' pressed, exits */
2025 if (!using_stdin) {
2026 if (q_pressed)
2027 break;
2028 /* read_key() returns 0 on EOF */
2029 key = read_key();
2030 if (key == 'q')
2031 break;
2032 }
2033
2034 /* select the stream that we must read now by looking at the
2035 smallest output pts */
2036 file_index = -1;
2037 for(i=0;i<nb_ostreams;i++) {
2038 double ipts, opts;
2039 ost = ost_table[i];
2040 os = output_files[ost->file_index];
2041 ist = ist_table[ost->source_index];
2042 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2043 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2044 else
2045 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2046 ipts = (double)ist->pts;
2047 if (!file_table[ist->file_index].eof_reached){
2048 if(ipts < ipts_min) {
2049 ipts_min = ipts;
2050 if(input_sync ) file_index = ist->file_index;
2051 }
2052 if(opts < opts_min) {
2053 opts_min = opts;
2054 if(!input_sync) file_index = ist->file_index;
2055 }
2056 }
2057 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2058 file_index= -1;
2059 break;
2060 }
2061 }
2062 /* if none, if is finished */
2063 if (file_index < 0) {
2064 break;
2065 }
2066
2067 /* finish if recording time exhausted */
2068 if (opts_min >= (recording_time / 1000000.0))
2069 break;
2070
2071 /* finish if limit size exhausted */
2072 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2073 break;
2074
2075 /* read a frame from it and output it in the fifo */
2076 is = input_files[file_index];
2077 if (av_read_frame(is, &pkt) < 0) {
2078 file_table[file_index].eof_reached = 1;
2079 if (opt_shortest)
2080 break;
2081 else
2082 continue;
2083 }
2084
2085 if (do_pkt_dump) {
2086 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2087 }
2088 /* the following test is needed in case new streams appear
2089 dynamically in stream : we ignore them */
2090 if (pkt.stream_index >= file_table[file_index].nb_streams)
2091 goto discard_packet;
2092 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2093 ist = ist_table[ist_index];
2094 if (ist->discard)
2095 goto discard_packet;
2096
2097 if (pkt.dts != AV_NOPTS_VALUE)
2098 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2099 if (pkt.pts != AV_NOPTS_VALUE)
2100 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2101
2102 if(input_files_ts_scale[file_index][pkt.stream_index]){
2103 if(pkt.pts != AV_NOPTS_VALUE)
2104 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2105 if(pkt.dts != AV_NOPTS_VALUE)
2106 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2107 }
2108
2109 // 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);
2110 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2111 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2112 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2113 int64_t delta= pkt_dts - ist->next_pts;
2114 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2115 input_files_ts_offset[ist->file_index]-= delta;
2116 if (verbose > 2)
2117 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2118 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2119 if(pkt.pts != AV_NOPTS_VALUE)
2120 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2121 }
2122 }
2123
2124 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2125 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2126
2127 if (verbose >= 0)
2128 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2129 ist->file_index, ist->index);
2130 if (exit_on_error)
2131 av_exit(1);
2132 av_free_packet(&pkt);
2133 goto redo;
2134 }
2135
2136 discard_packet:
2137 av_free_packet(&pkt);
2138
2139 /* dump report by using the output first video and audio streams */
2140 print_report(output_files, ost_table, nb_ostreams, 0);
2141 }
2142
2143 /* at the end of stream, we must flush the decoder buffers */
2144 for(i=0;i<nb_istreams;i++) {
2145 ist = ist_table[i];
2146 if (ist->decoding_needed) {
2147 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2148 }
2149 }
2150
2151 term_exit();
2152
2153 /* write the trailer if needed and close file */
2154 for(i=0;i<nb_output_files;i++) {
2155 os = output_files[i];
2156 av_write_trailer(os);
2157 }
2158
2159 /* dump report by using the first video and audio streams */
2160 print_report(output_files, ost_table, nb_ostreams, 1);
2161
2162 /* close each encoder */
2163 for(i=0;i<nb_ostreams;i++) {
2164 ost = ost_table[i];
2165 if (ost->encoding_needed) {
2166 av_freep(&ost->st->codec->stats_in);
2167 avcodec_close(ost->st->codec);
2168 }
2169 }
2170
2171 /* close each decoder */
2172 for(i=0;i<nb_istreams;i++) {
2173 ist = ist_table[i];
2174 if (ist->decoding_needed) {
2175 avcodec_close(ist->st->codec);
2176 }
2177 }
2178
2179 /* finished ! */
2180
2181 ret = 0;
2182 fail1:
2183 av_freep(&bit_buffer);
2184 av_free(file_table);
2185
2186 if (ist_table) {
2187 for(i=0;i<nb_istreams;i++) {
2188 ist = ist_table[i];
2189 av_free(ist);
2190 }
2191 av_free(ist_table);
2192 }
2193 if (ost_table) {
2194 for(i=0;i<nb_ostreams;i++) {
2195 ost = ost_table[i];
2196 if (ost) {
2197 if (ost->logfile) {
2198 fclose(ost->logfile);
2199 ost->logfile = NULL;
2200 }
2201 av_fifo_free(&ost->fifo); /* works even if fifo is not
2202 initialized but set to zero */
2203 av_free(ost->pict_tmp.data[0]);
2204 if (ost->video_resample)
2205 sws_freeContext(ost->img_resample_ctx);
2206 if (ost->resample)
2207 audio_resample_close(ost->resample);
2208 if (ost->reformat_ctx)
2209 av_audio_convert_free(ost->reformat_ctx);
2210 av_free(ost);
2211 }
2212 }
2213 av_free(ost_table);
2214 }
2215 return ret;
2216 fail:
2217 ret = AVERROR(ENOMEM);
2218 goto fail1;
2219 }
2220
2221 #if 0
2222 int file_read(const char *filename)
2223 {
2224 URLContext *h;
2225 unsigned char buffer[1024];
2226 int len, i;
2227
2228 if (url_open(&h, filename, O_RDONLY) < 0) {
2229 printf("could not open '%s'\n", filename);
2230 return -1;
2231 }
2232 for(;;) {
2233 len = url_read(h, buffer, sizeof(buffer));
2234 if (len <= 0)
2235 break;
2236 for(i=0;i<len;i++) putchar(buffer[i]);
2237 }
2238 url_close(h);
2239 return 0;
2240 }
2241 #endif
2242
2243 static void opt_format(const char *arg)
2244 {
2245 /* compatibility stuff for pgmyuv */
2246 if (!strcmp(arg, "pgmyuv")) {
2247 pgmyuv_compatibility_hack=1;
2248 // opt_image_format(arg);
2249 arg = "image2";
2250 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2251 }
2252
2253 file_iformat = av_find_input_format(arg);
2254 file_oformat = guess_format(arg, NULL, NULL);
2255 if (!file_iformat && !file_oformat) {
2256 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2257 av_exit(1);
2258 }
2259 }
2260
2261 static void opt_video_rc_override_string(const char *arg)
2262 {
2263 video_rc_override_string = arg;
2264 }
2265
2266 static int opt_me_threshold(const char *opt, const char *arg)
2267 {
2268 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2269 return 0;
2270 }
2271
2272 static int opt_verbose(const char *opt, const char *arg)
2273 {
2274 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2275 av_log_set_level(verbose);
2276 return 0;
2277 }
2278
2279 static int opt_frame_rate(const char *opt, const char *arg)
2280 {
2281 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2282 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2283 av_exit(1);
2284 }
2285 return 0;
2286 }
2287
2288 static int opt_bitrate(const char *opt, const char *arg)
2289 {
2290 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2291
2292 opt_default(opt, arg);
2293
2294 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2295 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2296
2297 return 0;
2298 }
2299
2300 static void opt_frame_crop_top(const char *arg)
2301 {
2302 frame_topBand = atoi(arg);
2303 if (frame_topBand < 0) {
2304 fprintf(stderr, "Incorrect top crop size\n");
2305 av_exit(1);
2306 }
2307 if ((frame_topBand % 2) != 0) {
2308 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2309 av_exit(1);
2310 }
2311 if ((frame_topBand) >= frame_height){
2312 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2313 av_exit(1);
2314 }
2315 frame_height -= frame_topBand;
2316 }
2317
2318 static void opt_frame_crop_bottom(const char *arg)
2319 {
2320 frame_bottomBand = atoi(arg);
2321 if (frame_bottomBand < 0) {
2322 fprintf(stderr, "Incorrect bottom crop size\n");
2323 av_exit(1);
2324 }
2325 if ((frame_bottomBand % 2) != 0) {
2326 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2327 av_exit(1);
2328 }
2329 if ((frame_bottomBand) >= frame_height){
2330 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2331 av_exit(1);
2332 }
2333 frame_height -= frame_bottomBand;
2334 }
2335
2336 static void opt_frame_crop_left(const char *arg)
2337 {
2338 frame_leftBand = atoi(arg);
2339 if (frame_leftBand < 0) {
2340 fprintf(stderr, "Incorrect left crop size\n");
2341 av_exit(1);
2342 }
2343 if ((frame_leftBand % 2) != 0) {
2344 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2345 av_exit(1);
2346 }
2347 if ((frame_leftBand) >= frame_width){
2348 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2349 av_exit(1);
2350 }
2351 frame_width -= frame_leftBand;
2352 }
2353
2354 static void opt_frame_crop_right(const char *arg)
2355 {
2356 frame_rightBand = atoi(arg);
2357 if (frame_rightBand < 0) {
2358 fprintf(stderr, "Incorrect right crop size\n");
2359 av_exit(1);
2360 }
2361 if ((frame_rightBand % 2) != 0) {
2362 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2363 av_exit(1);
2364 }
2365 if ((frame_rightBand) >= frame_width){
2366 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2367 av_exit(1);
2368 }
2369 frame_width -= frame_rightBand;
2370 }
2371
2372 static void opt_frame_size(const char *arg)
2373 {
2374 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2375 fprintf(stderr, "Incorrect frame size\n");
2376 av_exit(1);
2377 }
2378 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2379 fprintf(stderr, "Frame size must be a multiple of 2\n");
2380 av_exit(1);
2381 }
2382 }
2383
2384
2385 #define SCALEBITS 10
2386 #define ONE_HALF (1 << (SCALEBITS - 1))
2387 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2388
2389 #define RGB_TO_Y(r, g, b) \
2390 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2391 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2392
2393 #define RGB_TO_U(r1, g1, b1, shift)\
2394 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2395 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2396
2397 #define RGB_TO_V(r1, g1, b1, shift)\
2398 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2399 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2400
2401 static void opt_pad_color(const char *arg) {
2402 /* Input is expected to be six hex digits similar to
2403 how colors are expressed in html tags (but without the #) */
2404 int rgb = strtol(arg, NULL, 16);
2405 int r,g,b;
2406
2407 r = (rgb >> 16);
2408 g = ((rgb >> 8) & 255);
2409 b = (rgb & 255);
2410
2411 padcolor[0] = RGB_TO_Y(r,g,b);
2412 padcolor[1] = RGB_TO_U(r,g,b,0);
2413 padcolor[2] = RGB_TO_V(r,g,b,0);
2414 }
2415
2416 static void opt_frame_pad_top(const char *arg)
2417 {
2418 frame_padtop = atoi(arg);
2419 if (frame_padtop < 0) {
2420 fprintf(stderr, "Incorrect top pad size\n");
2421 av_exit(1);
2422 }
2423 if ((frame_padtop % 2) != 0) {
2424 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2425 av_exit(1);
2426 }
2427 }
2428
2429 static void opt_frame_pad_bottom(const char *arg)
2430 {
2431 frame_padbottom = atoi(arg);
2432 if (frame_padbottom < 0) {
2433 fprintf(stderr, "Incorrect bottom pad size\n");
2434 av_exit(1);
2435 }
2436 if ((frame_padbottom % 2) != 0) {
2437 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2438 av_exit(1);
2439 }
2440 }
2441
2442
2443 static void opt_frame_pad_left(const char *arg)
2444 {
2445 frame_padleft = atoi(arg);
2446 if (frame_padleft < 0) {
2447 fprintf(stderr, "Incorrect left pad size\n");
2448 av_exit(1);
2449 }
2450 if ((frame_padleft % 2) != 0) {
2451 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2452 av_exit(1);
2453 }
2454 }
2455
2456
2457 static void opt_frame_pad_right(const char *arg)
2458 {
2459 frame_padright = atoi(arg);
2460 if (frame_padright < 0) {
2461 fprintf(stderr, "Incorrect right pad size\n");
2462 av_exit(1);
2463 }
2464 if ((frame_padright % 2) != 0) {
2465 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2466 av_exit(1);
2467 }
2468 }
2469
2470 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2471 {
2472 int i;
2473 char fmt_str[128];
2474 for (i=-1; i < nb_fmts; i++) {
2475 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2476 fprintf(stdout, "%s\n", fmt_str);
2477 }
2478 }
2479
2480 static void opt_frame_pix_fmt(const char *arg)
2481 {
2482 if (strcmp(arg, "list"))
2483 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2484 else {
2485 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2486 av_exit(0);
2487 }
2488 }
2489
2490 static void opt_frame_aspect_ratio(const char *arg)
2491 {
2492 int x = 0, y = 0;
2493 double ar = 0;
2494 const char *p;
2495 char *end;
2496
2497 p = strchr(arg, ':');
2498 if (p) {
2499 x = strtol(arg, &end, 10);
2500 if (end == p)
2501 y = strtol(end+1, &end, 10);
2502 if (x > 0 && y > 0)
2503 ar = (double)x / (double)y;
2504 } else
2505 ar = strtod(arg, NULL);
2506
2507 if (!ar) {
2508 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2509 av_exit(1);
2510 }
2511 frame_aspect_ratio = ar;
2512 }
2513
2514 static void opt_qscale(const char *arg)
2515 {
2516 video_qscale = atof(arg);
2517 if (video_qscale <= 0 ||
2518 video_qscale > 255) {
2519 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2520 av_exit(1);
2521 }
2522 }
2523
2524 static void opt_top_field_first(const char *arg)
2525 {
2526 top_field_first= atoi(arg);
2527 }
2528
2529 static int opt_thread_count(const char *opt, const char *arg)
2530 {
2531 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2532 #if !defined(HAVE_THREADS)
2533 if (verbose >= 0)
2534 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2535 #endif
2536 return 0;
2537 }
2538
2539 static void opt_audio_sample_fmt(const char *arg)
2540 {
2541 if (strcmp(arg, "list"))
2542 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2543 else {
2544 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2545 av_exit(0);
2546 }
2547 }
2548
2549 static int opt_audio_rate(const char *opt, const char *arg)
2550 {
2551 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2552 return 0;
2553 }
2554
2555 static int opt_audio_channels(const char *opt, const char *arg)
2556 {
2557 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2558 return 0;
2559 }
2560
2561 static void opt_video_channel(const char *arg)
2562 {
2563 video_channel = strtol(arg, NULL, 0);
2564 }
2565
2566 static void opt_video_standard(const char *arg)
2567 {
2568 video_standard = av_strdup(arg);
2569 }
2570
2571 static void opt_codec(int *pstream_copy, char **pcodec_name,
2572 int codec_type, const char *arg)
2573 {
2574 av_freep(pcodec_name);
2575 if (!strcmp(arg, "copy")) {
2576 *pstream_copy = 1;
2577 } else {
2578 *pcodec_name = av_strdup(arg);
2579 }
2580 }
2581
2582 static void opt_audio_codec(const char *arg)
2583 {
2584 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2585 }
2586
2587 static void opt_audio_tag(const char *arg)
2588 {
2589 char *tail;
2590 audio_codec_tag= strtol(arg, &tail, 0);
2591
2592 if(!tail || *tail)
2593 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2594 }
2595
2596 static void opt_video_tag(const char *arg)
2597 {
2598 char *tail;
2599 video_codec_tag= strtol(arg, &tail, 0);
2600
2601 if(!tail || *tail)
2602 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2603 }
2604
2605 #ifdef CONFIG_VHOOK
2606 static void add_frame_hooker(const char *arg)
2607 {
2608 int argc = 0;
2609 char *argv[64];
2610 int i;
2611 char *args = av_strdup(arg);
2612
2613 using_vhook = 1;
2614
2615 argv[0] = strtok(args, " ");
2616 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2617 }
2618
2619 i = frame_hook_add(argc, argv);
2620
2621 if (i != 0) {
2622 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2623 av_exit(1);
2624 }
2625 }
2626 #endif
2627
2628 static void opt_video_codec(const char *arg)
2629 {
2630 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2631 }
2632
2633 static void opt_subtitle_codec(const char *arg)
2634 {
2635 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2636 }
2637
2638 static void opt_map(const char *arg)
2639 {
2640 AVStreamMap *m;
2641 char *p;
2642
2643 m = &stream_maps[nb_stream_maps++];
2644
2645 m->file_index = strtol(arg, &p, 0);
2646 if (*p)
2647 p++;
2648
2649 m->stream_index = strtol(p, &p, 0);
2650 if (*p) {
2651 p++;
2652 m->sync_file_index = strtol(p, &p, 0);
2653 if (*p)
2654 p++;
2655 m->sync_stream_index = strtol(p, &p, 0);
2656 } else {
2657 m->sync_file_index = m->file_index;
2658 m->sync_stream_index = m->stream_index;
2659 }
2660 }
2661
2662 static void opt_map_meta_data(const char *arg)
2663 {
2664 AVMetaDataMap *m;
2665 char *p;
2666
2667 m = &meta_data_maps[nb_meta_data_maps++];
2668
2669 m->out_file = strtol(arg, &p, 0);
2670 if (*p)
2671 p++;
2672
2673 m->in_file = strtol(p, &p, 0);
2674 }
2675
2676 static void opt_input_ts_scale(const char *arg)
2677 {
2678 unsigned int stream;
2679 double scale;
2680 char *p;
2681
2682 stream = strtol(arg, &p, 0);
2683 if (*p)
2684 p++;
2685 scale= strtod(p, &p);
2686
2687 if(stream >= MAX_STREAMS)
2688 av_exit(1);
2689
2690 input_files_ts_scale[nb_input_files][stream]= scale;
2691 }
2692
2693 static int opt_recording_time(const char *opt, const char *arg)
2694 {
2695 recording_time = parse_time_or_die(opt, arg, 1);
2696 return 0;
2697 }
2698
2699 static int opt_start_time(const char *opt, const char *arg)
2700 {
2701 start_time = parse_time_or_die(opt, arg, 1);
2702 return 0;
2703 }
2704
2705 static int opt_rec_timestamp(const char *opt, const char *arg)
2706 {
2707 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2708 return 0;
2709 }
2710
2711 static int opt_input_ts_offset(const char *opt, const char *arg)
2712 {
2713 input_ts_offset = parse_time_or_die(opt, arg, 1);
2714 return 0;
2715 }
2716
2717 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2718 {
2719 const char *codec_string = encoder ? "encoder" : "decoder";
2720 AVCodec *codec;
2721
2722 if(!name)
2723 return CODEC_ID_NONE;
2724 codec = encoder ?
2725 avcodec_find_encoder_by_name(name) :
2726 avcodec_find_decoder_by_name(name);
2727 if(!codec) {
2728 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2729 av_exit(1);
2730 }
2731 if(codec->type != type) {
2732 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2733 av_exit(1);
2734 }
2735 return codec->id;
2736 }
2737
2738 static void opt_input_file(const char *filename)
2739 {
2740 AVFormatContext *ic;
2741 AVFormatParameters params, *ap = &params;
2742 int err, i, ret, rfps, rfps_base;
2743 int64_t timestamp;
2744
2745 if (!strcmp(filename, "-"))
2746 filename = "pipe:";
2747
2748 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2749 !strcmp(filename, "/dev/stdin");
2750
2751 /* get default parameters from command line */
2752 ic = av_alloc_format_context();
2753
2754 memset(ap, 0, sizeof(*ap));
2755 ap->prealloced_context = 1;
2756 ap->sample_rate = audio_sample_rate;
2757 ap->channels = audio_channels;
2758 ap->time_base.den = frame_rate.num;
2759 ap->time_base.num = frame_rate.den;
2760 ap->width = frame_width + frame_padleft + frame_padright;
2761 ap->height = frame_height + frame_padtop + frame_padbottom;
2762 ap->pix_fmt = frame_pix_fmt;
2763 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2764 ap->channel = video_channel;
2765 ap->standard = video_standard;
2766 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2767 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2768 if(pgmyuv_compatibility_hack)
2769 ap->video_codec_id= CODEC_ID_PGMYUV;
2770
2771 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2772
2773 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2774 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2775 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2776
2777 /* open the input file with generic libav function */
2778 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2779 if (err < 0) {
2780 print_error(filename, err);
2781 av_exit(1);
2782 }
2783 if(opt_programid) {
2784 int i;
2785 for(i=0; i<ic->nb_programs; i++)
2786 if(ic->programs[i]->id != opt_programid)
2787 ic->programs[i]->discard = AVDISCARD_ALL;
2788 }
2789
2790 ic->loop_input = loop_input;
2791
2792 /* If not enough info to get the stream parameters, we decode the
2793 first frames to get it. (used in mpeg case for example) */
2794 ret = av_find_stream_info(ic);
2795 if (ret < 0 && verbose >= 0) {
2796 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2797 av_exit(1);
2798 }
2799
2800 timestamp = start_time;
2801 /* add the stream start time */
2802 if (ic->start_time != AV_NOPTS_VALUE)
2803 timestamp += ic->start_time;
2804
2805 /* if seeking requested, we execute it */
2806 if (start_time != 0) {
2807 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2808 if (ret < 0) {
2809 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2810 filename, (double)timestamp / AV_TIME_BASE);
2811 }
2812 /* reset seek info */
2813 start_time = 0;
2814 }
2815
2816 /* update the current parameters so that they match the one of the input stream */
2817 for(i=0;i<ic->nb_streams;i++) {
2818 AVCodecContext *enc = ic->streams[i]->codec;
2819 if(thread_count>1)
2820 avcodec_thread_init(enc, thread_count);
2821 enc->thread_count= thread_count;
2822 switch(enc->codec_type) {
2823 case CODEC_TYPE_AUDIO:
2824 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2825 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2826 channel_layout = enc->channel_layout;
2827 audio_channels = enc->channels;
2828 audio_sample_rate = enc->sample_rate;
2829 audio_sample_fmt = enc->sample_fmt;
2830 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2831 if(audio_disable)
2832 ic->streams[i]->discard= AVDISCARD_ALL;
2833 break;
2834 case CODEC_TYPE_VIDEO:
2835 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2836 frame_height = enc->height;
2837 frame_width = enc->width;
2838 if(ic->streams[i]->sample_aspect_ratio.num)
2839 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2840 else
2841 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2842 frame_aspect_ratio *= (float) enc->width / enc->height;
2843 frame_pix_fmt = enc->pix_fmt;
2844 rfps = ic->streams[i]->r_frame_rate.num;
2845 rfps_base = ic->streams[i]->r_frame_rate.den;
2846 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2847 if(me_threshold)
2848 enc->debug |= FF_DEBUG_MV;
2849
2850 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2851
2852 if (verbose >= 0)
2853 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2854 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2855
2856 (float)rfps / rfps_base, rfps, rfps_base);
2857 }
2858 /* update the current frame rate to match the stream frame rate */
2859 frame_rate.num = rfps;
2860 frame_rate.den = rfps_base;
2861
2862 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2863 if(video_disable)
2864 ic->streams[i]->discard= AVDISCARD_ALL;
2865 else if(video_discard)
2866 ic->streams[i]->discard= video_discard;
2867 break;
2868 case CODEC_TYPE_DATA:
2869 break;
2870 case CODEC_TYPE_SUBTITLE:
2871 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2872 if(subtitle_disable)
2873 ic->streams[i]->discard = AVDISCARD_ALL;
2874 break;
2875 case CODEC_TYPE_ATTACHMENT:
2876 case CODEC_TYPE_UNKNOWN:
2877 nb_icodecs++;
2878 break;
2879 default:
2880 abort();
2881 }
2882 }
2883
2884 input_files[nb_input_files] = ic;
2885 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2886 /* dump the file content */
2887 if (verbose >= 0)
2888 dump_format(ic, nb_input_files, filename, 0);
2889
2890 nb_input_files++;
2891 file_iformat = NULL;
2892 file_oformat = NULL;
2893
2894 video_channel = 0;
2895
2896 av_freep(&video_codec_name);
2897 av_freep(&audio_codec_name);
2898 av_freep(&subtitle_codec_name);
2899 }
2900
2901 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2902 int *has_subtitle_ptr)
2903 {
2904 int has_video, has_audio, has_subtitle, i, j;
2905 AVFormatContext *ic;
2906
2907 has_video = 0;
2908 has_audio = 0;
2909 has_subtitle = 0;
2910 for(j=0;j<nb_input_files;j++) {
2911 ic = input_files[j];
2912 for(i=0;i<ic->nb_streams;i++) {
2913 AVCodecContext *enc = ic->streams[i]->codec;
2914 switch(enc->codec_type) {
2915 case CODEC_TYPE_AUDIO:
2916 has_audio = 1;
2917 break;
2918 case CODEC_TYPE_VIDEO:
2919 has_video = 1;
2920 break;
2921 case CODEC_TYPE_SUBTITLE:
2922 has_subtitle = 1;
2923 break;
2924 case CODEC_TYPE_DATA:
2925 case CODEC_TYPE_ATTACHMENT:
2926 case CODEC_TYPE_UNKNOWN:
2927 break;
2928 default:
2929 abort();
2930 }
2931 }
2932 }
2933 *has_video_ptr = has_video;
2934 *has_audio_ptr = has_audio;
2935 *has_subtitle_ptr = has_subtitle;
2936 }
2937
2938 static void new_video_stream(AVFormatContext *oc)
2939 {
2940 AVStream *st;
2941 AVCodecContext *video_enc;
2942 int codec_id;
2943
2944 st = av_new_stream(oc, oc->nb_streams);
2945 if (!st) {
2946 fprintf(stderr, "Could not alloc stream\n");
2947 av_exit(1);
2948 }
2949 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2950 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2951 video_bitstream_filters= NULL;
2952
2953 if(thread_count>1)
2954 avcodec_thread_init(st->codec, thread_count);
2955
2956 video_enc = st->codec;
2957
2958 if(video_codec_tag)
2959 video_enc->codec_tag= video_codec_tag;
2960
2961 if( (video_global_header&1)
2962 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2963 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2964 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2965 }
2966 if(video_global_header&2){
2967 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2968 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2969 }
2970
2971 if (video_stream_copy) {
2972 st->stream_copy = 1;
2973 video_enc->codec_type = CODEC_TYPE_VIDEO;
2974 video_enc->sample_aspect_ratio =
2975 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
2976 } else {
2977 const char *p;
2978 int i;
2979 AVCodec *codec;
2980 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
2981
2982 if (video_codec_name) {
2983 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
2984 codec = avcodec_find_encoder_by_name(video_codec_name);
2985 output_codecs[nb_ocodecs] = codec;
2986 } else {
2987 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2988 codec = avcodec_find_encoder(codec_id);
2989 }
2990
2991 video_enc->codec_id = codec_id;
2992
2993 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
2994
2995 if (codec && codec->supported_framerates && !force_fps)
2996 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
2997 video_enc->time_base.den = fps.num;
2998 video_enc->time_base.num = fps.den;
2999
3000 video_enc->width = frame_width + frame_padright + frame_padleft;
3001 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3002 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3003 video_enc->pix_fmt = frame_pix_fmt;
3004 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3005
3006 if(codec && codec->pix_fmts){
3007 const enum PixelFormat *p= codec->pix_fmts;
3008 for(; *p!=-1; p++){
3009 if(*p == video_enc->pix_fmt)
3010 break;
3011 }
3012 if(*p == -1)
3013 video_enc->pix_fmt = codec->pix_fmts[0];
3014 }
3015
3016 if (intra_only)
3017 video_enc->gop_size = 0;
3018 if (video_qscale || same_quality) {
3019 video_enc->flags |= CODEC_FLAG_QSCALE;
3020 video_enc->global_quality=
3021 st->quality = FF_QP2LAMBDA * video_qscale;
3022 }
3023
3024 if(intra_matrix)
3025 video_enc->intra_matrix = intra_matrix;
3026 if(inter_matrix)
3027 video_enc->inter_matrix = inter_matrix;
3028
3029 video_enc->thread_count = thread_count;
3030 p= video_rc_override_string;
3031 for(i=0; p; i++){
3032 int start, end, q;
3033 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3034 if(e!=3){
3035 fprintf(stderr, "error parsing rc_override\n");
3036 av_exit(1);
3037 }
3038 video_enc->rc_override=
3039 av_realloc(video_enc->rc_override,
3040 sizeof(RcOverride)*(i+1));
3041 video_enc->rc_override[i].start_frame= start;
3042 video_enc->rc_override[i].end_frame = end;
3043 if(q>0){
3044 video_enc->rc_override[i].qscale= q;
3045 video_enc->rc_override[i].quality_factor= 1.0;
3046 }
3047 else{
3048 video_enc->rc_override[i].qscale= 0;
3049 video_enc->rc_override[i].quality_factor= -q/100.0;
3050 }
3051 p= strchr(p, '/');
3052 if(p) p++;
3053 }
3054 video_enc->rc_override_count=i;
3055 if (!video_enc->rc_initial_buffer_occupancy)
3056 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3057 video_enc->me_threshold= me_threshold;
3058 video_enc->intra_dc_precision= intra_dc_precision - 8;
3059
3060 if (do_psnr)
3061 video_enc->flags|= CODEC_FLAG_PSNR;
3062
3063 /* two pass mode */
3064 if (do_pass) {
3065 if (do_pass == 1) {
3066 video_enc->flags |= CODEC_FLAG_PASS1;
3067 } else {
3068 video_enc->flags |= CODEC_FLAG_PASS2;
3069 }
3070 }
3071 }
3072 nb_ocodecs++;
3073
3074 /* reset some key parameters */
3075 video_disable = 0;
3076 av_freep(&video_codec_name);
3077 video_stream_copy = 0;
3078 }
3079
3080 static void new_audio_stream(AVFormatContext *oc)
3081 {
3082 AVStream *st;
3083 AVCodecContext *audio_enc;
3084 int codec_id;
3085
3086 st = av_new_stream(oc, oc->nb_streams);
3087 if (!st) {
3088 fprintf(stderr, "Could not alloc stream\n");
3089 av_exit(1);
3090 }
3091 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3092
3093 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3094 audio_bitstream_filters= NULL;
3095
3096 if(thread_count>1)
3097 avcodec_thread_init(st->codec, thread_count);
3098
3099 audio_enc = st->codec;
3100 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3101
3102 if(audio_codec_tag)
3103 audio_enc->codec_tag= audio_codec_tag;
3104
3105 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3106 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3107 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3108 }
3109 if (audio_stream_copy) {
3110 st->stream_copy = 1;
3111 audio_enc->channels = audio_channels;
3112 } else {
3113 AVCodec *codec;
3114
3115 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3116
3117 if (audio_codec_name) {
3118 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3119 codec = avcodec_find_encoder_by_name(audio_codec_name);
3120 output_codecs[nb_ocodecs] = codec;
3121 } else {
3122 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3123 codec = avcodec_find_encoder(codec_id);
3124 }
3125 audio_enc->codec_id = codec_id;
3126
3127 if (audio_qscale > QSCALE_NONE) {
3128 audio_enc->flags |= CODEC_FLAG_QSCALE;
3129 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3130 }
3131 audio_enc->thread_count = thread_count;
3132 audio_enc->channels = audio_channels;
3133 audio_enc->sample_fmt = audio_sample_fmt;
3134 audio_enc->channel_layout = channel_layout;
3135
3136 if(codec && codec->sample_fmts){
3137 const enum SampleFormat *p= codec->sample_fmts;
3138 for(; *p!=-1; p++){
3139 if(*p == audio_enc->sample_fmt)
3140 break;
3141 }
3142 if(*p == -1)
3143 audio_enc->sample_fmt = codec->sample_fmts[0];
3144 }
3145 }
3146 nb_ocodecs++;
3147 audio_enc->sample_rate = audio_sample_rate;
3148 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3149 if (audio_language) {
3150 av_strlcpy(st->language, audio_language, sizeof(st->language));
3151 av_free(audio_language);
3152 audio_language = NULL;
3153 }
3154
3155 /* reset some key parameters */
3156 audio_disable = 0;
3157 av_freep(&audio_codec_name);
3158 audio_stream_copy = 0;
3159 }
3160
3161 static void new_subtitle_stream(AVFormatContext *oc)
3162 {
3163 AVStream *st;
3164 AVCodecContext *subtitle_enc;
3165
3166 st = av_new_stream(oc, oc->nb_streams);
3167 if (!st) {
3168 fprintf(stderr, "Could not alloc stream\n");
3169 av_exit(1);
3170 }
3171 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3172
3173 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3174 subtitle_bitstream_filters= NULL;
3175
3176 subtitle_enc = st->codec;
3177 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3178 if (subtitle_stream_copy) {
3179 st->stream_copy = 1;
3180 } else {
3181 set_context_opts(avctx_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3182 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3183 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3184 }
3185 nb_ocodecs++;
3186
3187 if (subtitle_language) {
3188 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
3189 av_free(subtitle_language);
3190 subtitle_language = NULL;
3191 }
3192
3193 subtitle_disable = 0;
3194 av_freep(&subtitle_codec_name);
3195 subtitle_stream_copy = 0;
3196 }
3197
3198 static void opt_new_audio_stream(void)
3199 {
3200 AVFormatContext *oc;
3201 if (nb_output_files <= 0) {
3202 fprintf(stderr, "At least one output file must be specified\n");
3203 av_exit(1);
3204 }
3205 oc = output_files[nb_output_files - 1];
3206 new_audio_stream(oc);
3207 }
3208
3209 static void opt_new_video_stream(void)
3210 {
3211 AVFormatContext *oc;
3212 if (nb_output_files <= 0) {
3213 fprintf(stderr, "At least one output file must be specified\n");
3214 av_exit(1);
3215 }
3216 oc = output_files[nb_output_files - 1];
3217 new_video_stream(oc);
3218 }
3219
3220 static void opt_new_subtitle_stream(void)
3221 {
3222 AVFormatContext *oc;
3223 if (nb_output_files <= 0) {
3224 fprintf(stderr, "At least one output file must be specified\n");