Globally rename the header inclusion guard names.
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 500
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavformat/framehook.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/audioconvert.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #ifdef HAVE_SYS_RESOURCE_H
45 #include <sys/types.h>
46 #include <sys/resource.h>
47 #elif defined(HAVE_GETPROCESSTIMES)
48 #include <windows.h>
49 #endif
50
51 #if defined(HAVE_TERMIOS_H)
52 #include <fcntl.h>
53 #include <sys/ioctl.h>
54 #include <sys/time.h>
55 #include <termios.h>
56 #elif defined(HAVE_CONIO_H)
57 #include <conio.h>
58 #endif
59 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
60 #include <time.h>
61
62 #include "cmdutils.h"
63
64 #undef NDEBUG
65 #include <assert.h>
66
67 #undef exit
68
69 const char program_name[] = "FFmpeg";
70 const int program_birth_year = 2000;
71
72 /* select an input stream for an output stream */
73 typedef struct AVStreamMap {
74 int file_index;
75 int stream_index;
76 int sync_file_index;
77 int sync_stream_index;
78 } AVStreamMap;
79
80 /** select an input file for an output file */
81 typedef struct AVMetaDataMap {
82 int out_file;
83 int in_file;
84 } AVMetaDataMap;
85
86 static const OptionDef options[];
87
88 #define MAX_FILES 20
89
90 static AVFormatContext *input_files[MAX_FILES];
91 static int64_t input_files_ts_offset[MAX_FILES];
92 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
93 static int nb_input_files = 0;
94
95 static AVFormatContext *output_files[MAX_FILES];
96 static int nb_output_files = 0;
97
98 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
99 static int nb_stream_maps;
100
101 static AVMetaDataMap meta_data_maps[MAX_FILES];
102 static int nb_meta_data_maps;
103
104 static AVInputFormat *file_iformat;
105 static AVOutputFormat *file_oformat;
106 static int frame_width = 0;
107 static int frame_height = 0;
108 static float frame_aspect_ratio = 0;
109 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
110 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
111 static int frame_padtop = 0;
112 static int frame_padbottom = 0;
113 static int frame_padleft = 0;
114 static int frame_padright = 0;
115 static int padcolor[3] = {16,128,128}; /* default to black */
116 static int frame_topBand = 0;
117 static int frame_bottomBand = 0;
118 static int frame_leftBand = 0;
119 static int frame_rightBand = 0;
120 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
121 static AVRational frame_rate;
122 static float video_qscale = 0;
123 static uint16_t *intra_matrix = NULL;
124 static uint16_t *inter_matrix = NULL;
125 #if 0 //experimental, (can be removed)
126 static float video_rc_qsquish=1.0;
127 static float video_rc_qmod_amp=0;
128 static int video_rc_qmod_freq=0;
129 #endif
130 static const char *video_rc_override_string=NULL;
131 static int video_disable = 0;
132 static int video_discard = 0;
133 static char *video_codec_name = NULL;
134 static int video_codec_tag = 0;
135 static int same_quality = 0;
136 static int do_deinterlace = 0;
137 static int top_field_first = -1;
138 static int me_threshold = 0;
139 static int intra_dc_precision = 8;
140 static int loop_input = 0;
141 static int loop_output = AVFMT_NOOUTPUTLOOP;
142 static int qp_hist = 0;
143
144 static int intra_only = 0;
145 static int audio_sample_rate = 44100;
146 #define QSCALE_NONE -99999
147 static float audio_qscale = QSCALE_NONE;
148 static int audio_disable = 0;
149 static int audio_channels = 1;
150 static char *audio_codec_name = NULL;
151 static int audio_codec_tag = 0;
152 static char *audio_language = NULL;
153
154 static int subtitle_disable = 0;
155 static char *subtitle_codec_name = NULL;
156 static char *subtitle_language = NULL;
157
158 static float mux_preload= 0.5;
159 static float mux_max_delay= 0.7;
160
161 static int64_t recording_time = INT64_MAX;
162 static int64_t start_time = 0;
163 static int64_t rec_timestamp = 0;
164 static int64_t input_ts_offset = 0;
165 static int file_overwrite = 0;
166 static char *str_title = NULL;
167 static char *str_author = NULL;
168 static char *str_copyright = NULL;
169 static char *str_comment = NULL;
170 static char *str_genre = NULL;
171 static char *str_album = NULL;
172 static int do_benchmark = 0;
173 static int do_hex_dump = 0;
174 static int do_pkt_dump = 0;
175 static int do_psnr = 0;
176 static int do_pass = 0;
177 static char *pass_logfilename = NULL;
178 static int audio_stream_copy = 0;
179 static int video_stream_copy = 0;
180 static int subtitle_stream_copy = 0;
181 static int video_sync_method= -1;
182 static int audio_sync_method= 0;
183 static float audio_drift_threshold= 0.1;
184 static int copy_ts= 0;
185 static int opt_shortest = 0; //
186 static int video_global_header = 0;
187 static char *vstats_filename;
188 static FILE *vstats_file;
189 static int opt_programid = 0;
190
191 static int rate_emu = 0;
192
193 static int video_channel = 0;
194 static char *video_standard;
195
196 static int audio_volume = 256;
197
198 static int using_stdin = 0;
199 static int using_vhook = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int q_pressed = 0;
203 static int64_t video_size = 0;
204 static int64_t audio_size = 0;
205 static int64_t extra_size = 0;
206 static int nb_frames_dup = 0;
207 static int nb_frames_drop = 0;
208 static int input_sync;
209 static uint64_t limit_filesize = 0; //
210
211 static int pgmyuv_compatibility_hack=0;
212 static float dts_delta_threshold = 10;
213
214 static unsigned int sws_flags = SWS_BICUBIC;
215
216 static const char **opt_names;
217 static int opt_name_count;
218 static AVCodecContext *avctx_opts[CODEC_TYPE_NB];
219 static AVFormatContext *avformat_opts;
220 static struct SwsContext *sws_opts;
221 static int64_t timer_start;
222
223 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
225 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
226 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
227
228 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
229
230 struct AVInputStream;
231
232 typedef struct AVOutputStream {
233 int file_index; /* file index */
234 int index; /* stream index in the output file */
235 int source_index; /* AVInputStream index */
236 AVStream *st; /* stream in the output file */
237 int encoding_needed; /* true if encoding needed for this stream */
238 int frame_number;
239 /* input pts and corresponding output pts
240 for A/V sync */
241 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
242 struct AVInputStream *sync_ist; /* input stream to sync against */
243 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
244 /* video only */
245 int video_resample;
246 AVFrame pict_tmp; /* temporary image for resampling */
247 struct SwsContext *img_resample_ctx; /* for image resampling */
248 int resample_height;
249
250 int video_crop;
251 int topBand; /* cropping area sizes */
252 int leftBand;
253
254 int video_pad;
255 int padtop; /* padding area sizes */
256 int padbottom;
257 int padleft;
258 int padright;
259
260 /* audio only */
261 int audio_resample;
262 ReSampleContext *resample; /* for audio resampling */
263 int reformat_pair;
264 AVAudioConvert *reformat_ctx;
265 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
266 FILE *logfile;
267 } AVOutputStream;
268
269 typedef struct AVInputStream {
270 int file_index;
271 int index;
272 AVStream *st;
273 int discard; /* true if stream data should be discarded */
274 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
275 int64_t sample_index; /* current sample */
276
277 int64_t start; /* time when read started */
278 unsigned long frame; /* current frame */
279 int64_t next_pts; /* synthetic pts for cases where pkt.pts
280 is not defined */
281 int64_t pts; /* current pts */
282 int is_start; /* is 1 at the start and after a discontinuity */
283 } AVInputStream;
284
285 typedef struct AVInputFile {
286 int eof_reached; /* true if eof reached */
287 int ist_index; /* index of first stream in ist_table */
288 int buffer_size; /* current total buffer size */
289 int nb_streams; /* nb streams we are aware of */
290 } AVInputFile;
291
292 #ifdef HAVE_TERMIOS_H
293
294 /* init terminal so that we can grab keys */
295 static struct termios oldtty;
296 #endif
297
298 static void term_exit(void)
299 {
300 #ifdef HAVE_TERMIOS_H
301 tcsetattr (0, TCSANOW, &oldtty);
302 #endif
303 }
304
305 static volatile sig_atomic_t received_sigterm = 0;
306
307 static void
308 sigterm_handler(int sig)
309 {
310 received_sigterm = sig;
311 term_exit();
312 }
313
314 static void term_init(void)
315 {
316 #ifdef HAVE_TERMIOS_H
317 struct termios tty;
318
319 tcgetattr (0, &tty);
320 oldtty = tty;
321
322 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
323 |INLCR|IGNCR|ICRNL|IXON);
324 tty.c_oflag |= OPOST;
325 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
326 tty.c_cflag &= ~(CSIZE|PARENB);
327 tty.c_cflag |= CS8;
328 tty.c_cc[VMIN] = 1;
329 tty.c_cc[VTIME] = 0;
330
331 tcsetattr (0, TCSANOW, &tty);
332 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
333 #endif
334
335 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
336 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
337 /*
338 register a function to be called at normal program termination
339 */
340 atexit(term_exit);
341 #ifdef CONFIG_BEOS_NETSERVER
342 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
343 #endif
344 }
345
346 /* read a key without blocking */
347 static int read_key(void)
348 {
349 #if defined(HAVE_TERMIOS_H)
350 int n = 1;
351 unsigned char ch;
352 #ifndef CONFIG_BEOS_NETSERVER
353 struct timeval tv;
354 fd_set rfds;
355
356 FD_ZERO(&rfds);
357 FD_SET(0, &rfds);
358 tv.tv_sec = 0;
359 tv.tv_usec = 0;
360 n = select(1, &rfds, NULL, NULL, &tv);
361 #endif
362 if (n > 0) {
363 n = read(0, &ch, 1);
364 if (n == 1)
365 return ch;
366
367 return n;
368 }
369 #elif defined(HAVE_CONIO_H)
370 if(kbhit())
371 return(getch());
372 #endif
373 return -1;
374 }
375
376 static int decode_interrupt_cb(void)
377 {
378 return q_pressed || (q_pressed = read_key() == 'q');
379 }
380
381 static int av_exit(int ret)
382 {
383 int i;
384
385 /* close files */
386 for(i=0;i<nb_output_files;i++) {
387 /* maybe av_close_output_file ??? */
388 AVFormatContext *s = output_files[i];
389 int j;
390 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
391 url_fclose(s->pb);
392 for(j=0;j<s->nb_streams;j++) {
393 av_free(s->streams[j]->codec);
394 av_free(s->streams[j]);
395 }
396 av_free(s);
397 }
398 for(i=0;i<nb_input_files;i++)
399 av_close_input_file(input_files[i]);
400
401 av_free(intra_matrix);
402 av_free(inter_matrix);
403
404 if (vstats_file)
405 fclose(vstats_file);
406 av_free(vstats_filename);
407
408 av_free(opt_names);
409
410 av_free(video_codec_name);
411 av_free(audio_codec_name);
412 av_free(subtitle_codec_name);
413
414 av_free(video_standard);
415
416 #ifdef CONFIG_POWERPC_PERF
417 extern void powerpc_display_perf_report(void);
418 powerpc_display_perf_report();
419 #endif /* CONFIG_POWERPC_PERF */
420
421 if (received_sigterm) {
422 fprintf(stderr,
423 "Received signal %d: terminating.\n",
424 (int) received_sigterm);
425 exit (255);
426 }
427
428 exit(ret); /* not all OS-es handle main() return value */
429 return ret;
430 }
431
432 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
433 {
434 int i, err;
435 AVFormatContext *ic;
436 int nopts = 0;
437
438 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
439 if (err < 0)
440 return err;
441 /* copy stream format */
442 s->nb_streams = ic->nb_streams;
443 for(i=0;i<ic->nb_streams;i++) {
444 AVStream *st;
445
446 // FIXME: a more elegant solution is needed
447 st = av_mallocz(sizeof(AVStream));
448 memcpy(st, ic->streams[i], sizeof(AVStream));
449 st->codec = avcodec_alloc_context();
450 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
451 s->streams[i] = st;
452
453 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
454 st->stream_copy = 1;
455 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
456 st->stream_copy = 1;
457
458 if(!st->codec->thread_count)
459 st->codec->thread_count = 1;
460 if(st->codec->thread_count>1)
461 avcodec_thread_init(st->codec, st->codec->thread_count);
462
463 if(st->codec->flags & CODEC_FLAG_BITEXACT)
464 nopts = 1;
465 }
466
467 if (!nopts)
468 s->timestamp = av_gettime();
469
470 av_close_input_file(ic);
471 return 0;
472 }
473
474 static double
475 get_sync_ipts(const AVOutputStream *ost)
476 {
477 const AVInputStream *ist = ost->sync_ist;
478 return (double)(ist->pts - start_time)/AV_TIME_BASE;
479 }
480
481 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
482 int ret;
483
484 while(bsfc){
485 AVPacket new_pkt= *pkt;
486 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
487 &new_pkt.data, &new_pkt.size,
488 pkt->data, pkt->size,
489 pkt->flags & PKT_FLAG_KEY);
490 if(a>0){
491 av_free_packet(pkt);
492 new_pkt.destruct= av_destruct_packet;
493 } else if(a<0){
494 fprintf(stderr, "%s failed for stream %d, codec %s",
495 bsfc->filter->name, pkt->stream_index,
496 avctx->codec ? avctx->codec->name : "copy");
497 print_error("", a);
498 }
499 *pkt= new_pkt;
500
501 bsfc= bsfc->next;
502 }
503
504 ret= av_interleaved_write_frame(s, pkt);
505 if(ret < 0){
506 print_error("av_interleaved_write_frame()", ret);
507 av_exit(1);
508 }
509 }
510
511 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
512
513 static void do_audio_out(AVFormatContext *s,
514 AVOutputStream *ost,
515 AVInputStream *ist,
516 unsigned char *buf, int size)
517 {
518 uint8_t *buftmp;
519 static uint8_t *audio_buf = NULL;
520 static uint8_t *audio_out = NULL;
521 static uint8_t *audio_out2 = NULL;
522 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
523
524 int size_out, frame_bytes, ret;
525 AVCodecContext *enc= ost->st->codec;
526 AVCodecContext *dec= ist->st->codec;
527
528 /* SC: dynamic allocation of buffers */
529 if (!audio_buf)
530 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
531 if (!audio_out)
532 audio_out = av_malloc(audio_out_size);
533 if (!audio_buf || !audio_out)
534 return; /* Should signal an error ! */
535
536 if (enc->channels != dec->channels)
537 ost->audio_resample = 1;
538
539 if (ost->audio_resample && !ost->resample) {
540 if (dec->sample_fmt != SAMPLE_FMT_S16) {
541 fprintf(stderr, "Audio resampler only works with 16 bits per sample, patch welcome.\n");
542 av_exit(1);
543 }
544 ost->resample = audio_resample_init(enc->channels, dec->channels,
545 enc->sample_rate, dec->sample_rate);
546 if (!ost->resample) {
547 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
548 dec->channels, dec->sample_rate,
549 enc->channels, enc->sample_rate);
550 av_exit(1);
551 }
552 }
553
554 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
555 if (dec->sample_fmt!=enc->sample_fmt &&
556 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
557 if (!audio_out2)
558 audio_out2 = av_malloc(audio_out_size);
559 if (!audio_out2)
560 av_exit(1);
561 if (ost->reformat_ctx)
562 av_audio_convert_free(ost->reformat_ctx);
563 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
564 dec->sample_fmt, 1, NULL, 0);
565 if (!ost->reformat_ctx) {
566 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
567 avcodec_get_sample_fmt_name(dec->sample_fmt),
568 avcodec_get_sample_fmt_name(enc->sample_fmt));
569 av_exit(1);
570 }
571 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
572 }
573
574 if(audio_sync_method){
575 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
576 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
577 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
578 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
579
580 //FIXME resample delay
581 if(fabs(delta) > 50){
582 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
583 if(byte_delta < 0){
584 byte_delta= FFMAX(byte_delta, -size);
585 size += byte_delta;
586 buf -= byte_delta;
587 if(verbose > 2)
588 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
589 if(!size)
590 return;
591 ist->is_start=0;
592 }else{
593 static uint8_t *input_tmp= NULL;
594 input_tmp= av_realloc(input_tmp, byte_delta + size);
595
596 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
597 ist->is_start=0;
598 else
599 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
600
601 memset(input_tmp, 0, byte_delta);
602 memcpy(input_tmp + byte_delta, buf, size);
603 buf= input_tmp;
604 size += byte_delta;
605 if(verbose > 2)
606 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
607 }
608 }else if(audio_sync_method>1){
609 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
610 assert(ost->audio_resample);
611 if(verbose > 2)
612 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
613 // 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));
614 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
615 }
616 }
617 }else
618 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
619 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
620
621 if (ost->audio_resample) {
622 buftmp = audio_buf;
623 size_out = audio_resample(ost->resample,
624 (short *)buftmp, (short *)buf,
625 size / (ist->st->codec->channels * 2));
626 size_out = size_out * enc->channels * 2;
627 } else {
628 buftmp = buf;
629 size_out = size;
630 }
631
632 if (dec->sample_fmt!=enc->sample_fmt) {
633 const void *ibuf[6]= {buftmp};
634 void *obuf[6]= {audio_out2};
635 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
636 int ostride[6]= {av_get_bits_per_sample_format(enc->sample_fmt)/8};
637 int len= size_out/istride[0];
638 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
639 printf("av_audio_convert() failed\n");
640 return;
641 }
642 buftmp = audio_out2;
643 /* FIXME: existing code assume that size_out equals framesize*channels*2
644 remove this legacy cruft */
645 size_out = len*2;
646 }
647
648 /* now encode as many frames as possible */
649 if (enc->frame_size > 1) {
650 /* output resampled raw samples */
651 if (av_fifo_realloc2(&ost->fifo, av_fifo_size(&ost->fifo) + size_out) < 0) {
652 fprintf(stderr, "av_fifo_realloc2() failed\n");
653 av_exit(1);
654 }
655 av_fifo_generic_write(&ost->fifo, buftmp, size_out, NULL);
656
657 frame_bytes = enc->frame_size * 2 * enc->channels;
658
659 while (av_fifo_size(&ost->fifo) >= frame_bytes) {
660 AVPacket pkt;
661 av_init_packet(&pkt);
662
663 av_fifo_read(&ost->fifo, audio_buf, frame_bytes);
664
665 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
666
667 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
668 (short *)audio_buf);
669 audio_size += ret;
670 pkt.stream_index= ost->index;
671 pkt.data= audio_out;
672 pkt.size= ret;
673 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
674 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
675 pkt.flags |= PKT_FLAG_KEY;
676 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
677
678 ost->sync_opts += enc->frame_size;
679 }
680 } else {
681 AVPacket pkt;
682 av_init_packet(&pkt);
683
684 ost->sync_opts += size_out / (2 * enc->channels);
685
686 /* output a pcm frame */
687 /* XXX: change encoding codec API to avoid this ? */
688 switch(enc->codec->id) {
689 case CODEC_ID_PCM_S32LE:
690 case CODEC_ID_PCM_S32BE:
691 case CODEC_ID_PCM_U32LE:
692 case CODEC_ID_PCM_U32BE:
693 case CODEC_ID_PCM_F32BE:
694 size_out = size_out << 1;
695 break;
696 case CODEC_ID_PCM_S24LE:
697 case CODEC_ID_PCM_S24BE:
698 case CODEC_ID_PCM_U24LE:
699 case CODEC_ID_PCM_U24BE:
700 case CODEC_ID_PCM_S24DAUD:
701 size_out = size_out / 2 * 3;
702 break;
703 case CODEC_ID_PCM_S16LE:
704 case CODEC_ID_PCM_S16BE:
705 case CODEC_ID_PCM_U16LE:
706 case CODEC_ID_PCM_U16BE:
707 break;
708 default:
709 size_out = size_out >> 1;
710 break;
711 }
712 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
713 ret = avcodec_encode_audio(enc, audio_out, size_out,
714 (short *)buftmp);
715 audio_size += ret;
716 pkt.stream_index= ost->index;
717 pkt.data= audio_out;
718 pkt.size= ret;
719 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
720 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
721 pkt.flags |= PKT_FLAG_KEY;
722 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
723 }
724 }
725
726 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
727 {
728 AVCodecContext *dec;
729 AVPicture *picture2;
730 AVPicture picture_tmp;
731 uint8_t *buf = 0;
732
733 dec = ist->st->codec;
734
735 /* deinterlace : must be done before any resize */
736 if (do_deinterlace || using_vhook) {
737 int size;
738
739 /* create temporary picture */
740 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
741 buf = av_malloc(size);
742 if (!buf)
743 return;
744
745 picture2 = &picture_tmp;
746 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
747
748 if (do_deinterlace){
749 if(avpicture_deinterlace(picture2, picture,
750 dec->pix_fmt, dec->width, dec->height) < 0) {
751 /* if error, do not deinterlace */
752 av_free(buf);
753 buf = NULL;
754 picture2 = picture;
755 }
756 } else {
757 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
758 }
759 } else {
760 picture2 = picture;
761 }
762
763 if (ENABLE_VHOOK)
764 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
765 1000000 * ist->pts / AV_TIME_BASE);
766
767 if (picture != picture2)
768 *picture = *picture2;
769 *bufp = buf;
770 }
771
772 /* we begin to correct av delay at this threshold */
773 #define AV_DELAY_MAX 0.100
774
775 static void do_subtitle_out(AVFormatContext *s,
776 AVOutputStream *ost,
777 AVInputStream *ist,
778 AVSubtitle *sub,
779 int64_t pts)
780 {
781 static uint8_t *subtitle_out = NULL;
782 int subtitle_out_max_size = 65536;
783 int subtitle_out_size, nb, i;
784 AVCodecContext *enc;
785 AVPacket pkt;
786
787 if (pts == AV_NOPTS_VALUE) {
788 fprintf(stderr, "Subtitle packets must have a pts\n");
789 return;
790 }
791
792 enc = ost->st->codec;
793
794 if (!subtitle_out) {
795 subtitle_out = av_malloc(subtitle_out_max_size);
796 }
797
798 /* Note: DVB subtitle need one packet to draw them and one other
799 packet to clear them */
800 /* XXX: signal it in the codec context ? */
801 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
802 nb = 2;
803 else
804 nb = 1;
805
806 for(i = 0; i < nb; i++) {
807 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
808 subtitle_out_max_size, sub);
809
810 av_init_packet(&pkt);
811 pkt.stream_index = ost->index;
812 pkt.data = subtitle_out;
813 pkt.size = subtitle_out_size;
814 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
815 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
816 /* XXX: the pts correction is handled here. Maybe handling
817 it in the codec would be better */
818 if (i == 0)
819 pkt.pts += 90 * sub->start_display_time;
820 else
821 pkt.pts += 90 * sub->end_display_time;
822 }
823 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
824 }
825 }
826
827 static int bit_buffer_size= 1024*256;
828 static uint8_t *bit_buffer= NULL;
829
830 static void do_video_out(AVFormatContext *s,
831 AVOutputStream *ost,
832 AVInputStream *ist,
833 AVFrame *in_picture,
834 int *frame_size)
835 {
836 int nb_frames, i, ret;
837 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
838 AVFrame picture_crop_temp, picture_pad_temp;
839 AVCodecContext *enc, *dec;
840
841 avcodec_get_frame_defaults(&picture_crop_temp);
842 avcodec_get_frame_defaults(&picture_pad_temp);
843
844 enc = ost->st->codec;
845 dec = ist->st->codec;
846
847 /* by default, we output a single frame */
848 nb_frames = 1;
849
850 *frame_size = 0;
851
852 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
853 double vdelta;
854 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
855 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
856 if (vdelta < -1.1)
857 nb_frames = 0;
858 else if (video_sync_method == 2)
859 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
860 else if (vdelta > 1.1)
861 nb_frames = lrintf(vdelta);
862 //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);
863 if (nb_frames == 0){
864 ++nb_frames_drop;
865 if (verbose>2)
866 fprintf(stderr, "*** drop!\n");
867 }else if (nb_frames > 1) {
868 nb_frames_dup += nb_frames;
869 if (verbose>2)
870 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
871 }
872 }else
873 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
874
875 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
876 if (nb_frames <= 0)
877 return;
878
879 if (ost->video_crop) {
880 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
881 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
882 return;
883 }
884 formatted_picture = &picture_crop_temp;
885 } else {
886 formatted_picture = in_picture;
887 }
888
889 final_picture = formatted_picture;
890 padding_src = formatted_picture;
891 resampling_dst = &ost->pict_tmp;
892 if (ost->video_pad) {
893 final_picture = &ost->pict_tmp;
894 if (ost->video_resample) {
895 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
896 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
897 return;
898 }
899 resampling_dst = &picture_pad_temp;
900 }
901 }
902
903 if (ost->video_resample) {
904 padding_src = NULL;
905 final_picture = &ost->pict_tmp;
906 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
907 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
908 }
909
910 if (ost->video_pad) {
911 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
912 enc->height, enc->width, enc->pix_fmt,
913 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
914 }
915
916 /* duplicates frame if needed */
917 for(i=0;i<nb_frames;i++) {
918 AVPacket pkt;
919 av_init_packet(&pkt);
920 pkt.stream_index= ost->index;
921
922 if (s->oformat->flags & AVFMT_RAWPICTURE) {
923 /* raw pictures are written as AVPicture structure to
924 avoid any copies. We support temorarily the older
925 method. */
926 AVFrame* old_frame = enc->coded_frame;
927 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
928 pkt.data= (uint8_t *)final_picture;
929 pkt.size= sizeof(AVPicture);
930 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
931 pkt.flags |= PKT_FLAG_KEY;
932
933 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
934 enc->coded_frame = old_frame;
935 } else {
936 AVFrame big_picture;
937
938 big_picture= *final_picture;
939 /* better than nothing: use input picture interlaced
940 settings */
941 big_picture.interlaced_frame = in_picture->interlaced_frame;
942 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
943 if(top_field_first == -1)
944 big_picture.top_field_first = in_picture->top_field_first;
945 else
946 big_picture.top_field_first = top_field_first;
947 }
948
949 /* handles sameq here. This is not correct because it may
950 not be a global option */
951 if (same_quality) {
952 big_picture.quality = ist->st->quality;
953 }else
954 big_picture.quality = ost->st->quality;
955 if(!me_threshold)
956 big_picture.pict_type = 0;
957 // big_picture.pts = AV_NOPTS_VALUE;
958 big_picture.pts= ost->sync_opts;
959 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
960 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
961 ret = avcodec_encode_video(enc,
962 bit_buffer, bit_buffer_size,
963 &big_picture);
964 if (ret == -1) {
965 fprintf(stderr, "Video encoding failed\n");
966 av_exit(1);
967 }
968 //enc->frame_number = enc->real_pict_num;
969 if(ret>0){
970 pkt.data= bit_buffer;
971 pkt.size= ret;
972 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
973 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
974 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
975 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
976 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
977
978 if(enc->coded_frame->key_frame)
979 pkt.flags |= PKT_FLAG_KEY;
980 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
981 *frame_size = ret;
982 video_size += ret;
983 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
984 // enc->frame_number-1, enc->real_pict_num, ret,
985 // enc->pict_type);
986 /* if two pass, output log */
987 if (ost->logfile && enc->stats_out) {
988 fprintf(ost->logfile, "%s", enc->stats_out);
989 }
990 }
991 }
992 ost->sync_opts++;
993 ost->frame_number++;
994 }
995 }
996
997 static double psnr(double d){
998 return -10.0*log(d)/log(10.0);
999 }
1000
1001 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1002 int frame_size)
1003 {
1004 AVCodecContext *enc;
1005 int frame_number;
1006 double ti1, bitrate, avg_bitrate;
1007
1008 /* this is executed just the first time do_video_stats is called */
1009 if (!vstats_file) {
1010 vstats_file = fopen(vstats_filename, "w");
1011 if (!vstats_file) {
1012 perror("fopen");
1013 av_exit(1);
1014 }
1015 }
1016
1017 enc = ost->st->codec;
1018 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1019 frame_number = ost->frame_number;
1020 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1021 if (enc->flags&CODEC_FLAG_PSNR)
1022 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1023
1024 fprintf(vstats_file,"f_size= %6d ", frame_size);
1025 /* compute pts value */
1026 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1027 if (ti1 < 0.01)
1028 ti1 = 0.01;
1029
1030 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1031 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1032 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1033 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1034 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1035 }
1036 }
1037
1038 static void print_report(AVFormatContext **output_files,
1039 AVOutputStream **ost_table, int nb_ostreams,
1040 int is_last_report)
1041 {
1042 char buf[1024];
1043 AVOutputStream *ost;
1044 AVFormatContext *oc, *os;
1045 int64_t total_size;
1046 AVCodecContext *enc;
1047 int frame_number, vid, i;
1048 double bitrate, ti1, pts;
1049 static int64_t last_time = -1;
1050 static int qp_histogram[52];
1051
1052 if (!is_last_report) {
1053 int64_t cur_time;
1054 /* display the report every 0.5 seconds */
1055 cur_time = av_gettime();
1056 if (last_time == -1) {
1057 last_time = cur_time;
1058 return;
1059 }
1060 if ((cur_time - last_time) < 500000)
1061 return;
1062 last_time = cur_time;
1063 }
1064
1065
1066 oc = output_files[0];
1067
1068 total_size = url_fsize(oc->pb);
1069 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1070 total_size= url_ftell(oc->pb);
1071
1072 buf[0] = '\0';
1073 ti1 = 1e10;
1074 vid = 0;
1075 for(i=0;i<nb_ostreams;i++) {
1076 ost = ost_table[i];
1077 os = output_files[ost->file_index];
1078 enc = ost->st->codec;
1079 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1080 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1081 !ost->st->stream_copy ?
1082 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1083 }
1084 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1085 float t = (av_gettime()-timer_start) / 1000000.0;
1086
1087 frame_number = ost->frame_number;
1088 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1089 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1090 !ost->st->stream_copy ?
1091 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1092 if(is_last_report)
1093 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1094 if(qp_hist){
1095 int j;
1096 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1097 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1098 qp_histogram[qp]++;
1099 for(j=0; j<32; j++)
1100 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1101 }
1102 if (enc->flags&CODEC_FLAG_PSNR){
1103 int j;
1104 double error, error_sum=0;
1105 double scale, scale_sum=0;
1106 char type[3]= {'Y','U','V'};
1107 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1108 for(j=0; j<3; j++){
1109 if(is_last_report){
1110 error= enc->error[j];
1111 scale= enc->width*enc->height*255.0*255.0*frame_number;
1112 }else{
1113 error= enc->coded_frame->error[j];
1114 scale= enc->width*enc->height*255.0*255.0;
1115 }
1116 if(j) scale/=4;
1117 error_sum += error;
1118 scale_sum += scale;
1119 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1120 }
1121 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1122 }
1123 vid = 1;
1124 }
1125 /* compute min output value */
1126 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1127 if ((pts < ti1) && (pts > 0))
1128 ti1 = pts;
1129 }
1130 if (ti1 < 0.01)
1131 ti1 = 0.01;
1132
1133 if (verbose || is_last_report) {
1134 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1135
1136 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1137 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1138 (double)total_size / 1024, ti1, bitrate);
1139
1140 if (verbose > 1)
1141 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1142 nb_frames_dup, nb_frames_drop);
1143
1144 if (verbose >= 0)
1145 fprintf(stderr, "%s \r", buf);
1146
1147 fflush(stderr);
1148 }
1149
1150 if (is_last_report && verbose >= 0){
1151 int64_t raw= audio_size + video_size + extra_size;
1152 fprintf(stderr, "\n");
1153 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1154 video_size/1024.0,
1155 audio_size/1024.0,
1156 extra_size/1024.0,
1157 100.0*(total_size - raw)/raw
1158 );
1159 }
1160 }
1161
1162 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1163 static int output_packet(AVInputStream *ist, int ist_index,
1164 AVOutputStream **ost_table, int nb_ostreams,
1165 const AVPacket *pkt)
1166 {
1167 AVFormatContext *os;
1168 AVOutputStream *ost;
1169 uint8_t *ptr;
1170 int len, ret, i;
1171 uint8_t *data_buf;
1172 int data_size, got_picture;
1173 AVFrame picture;
1174 void *buffer_to_free;
1175 static unsigned int samples_size= 0;
1176 static short *samples= NULL;
1177 AVSubtitle subtitle, *subtitle_to_free;
1178 int got_subtitle;
1179
1180 if(ist->next_pts == AV_NOPTS_VALUE)
1181 ist->next_pts= ist->pts;
1182
1183 if (pkt == NULL) {
1184 /* EOF handling */
1185 ptr = NULL;
1186 len = 0;
1187 goto handle_eof;
1188 }
1189
1190 if(pkt->dts != AV_NOPTS_VALUE)
1191 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1192
1193 len = pkt->size;
1194 ptr = pkt->data;
1195
1196 //while we have more to decode or while the decoder did output something on EOF
1197 while (len > 0 || (!pkt && ist->next_pts != ist->pts)) {
1198 handle_eof:
1199 ist->pts= ist->next_pts;
1200
1201 if(len && len != pkt->size && verbose>0)
1202 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1203
1204 /* decode the packet if needed */
1205 data_buf = NULL; /* fail safe */
1206 data_size = 0;
1207 subtitle_to_free = NULL;
1208 if (ist->decoding_needed) {
1209 switch(ist->st->codec->codec_type) {
1210 case CODEC_TYPE_AUDIO:{
1211 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1212 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1213 av_free(samples);
1214 samples= av_malloc(samples_size);
1215 }
1216 data_size= samples_size;
1217 /* XXX: could avoid copy if PCM 16 bits with same
1218 endianness as CPU */
1219 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1220 ptr, len);
1221 if (ret < 0)
1222 goto fail_decode;
1223 ptr += ret;
1224 len -= ret;
1225 /* Some bug in mpeg audio decoder gives */
1226 /* data_size < 0, it seems they are overflows */
1227 if (data_size <= 0) {
1228 /* no audio frame */
1229 continue;
1230 }
1231 data_buf = (uint8_t *)samples;
1232 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1233 (ist->st->codec->sample_rate * ist->st->codec->channels);
1234 break;}
1235 case CODEC_TYPE_VIDEO:
1236 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1237 /* XXX: allocate picture correctly */
1238 avcodec_get_frame_defaults(&picture);
1239
1240 ret = avcodec_decode_video(ist->st->codec,
1241 &picture, &got_picture, ptr, len);
1242 ist->st->quality= picture.quality;
1243 if (ret < 0)
1244 goto fail_decode;
1245 if (!got_picture) {
1246 /* no picture yet */
1247 goto discard_packet;
1248 }
1249 if (ist->st->codec->time_base.num != 0) {
1250 ist->next_pts += ((int64_t)AV_TIME_BASE *
1251 ist->st->codec->time_base.num) /
1252 ist->st->codec->time_base.den;
1253 }
1254 len = 0;
1255 break;
1256 case CODEC_TYPE_SUBTITLE:
1257 ret = avcodec_decode_subtitle(ist->st->codec,
1258 &subtitle, &got_subtitle, ptr, len);
1259 if (ret < 0)
1260 goto fail_decode;
1261 if (!got_subtitle) {
1262 goto discard_packet;
1263 }
1264 subtitle_to_free = &subtitle;
1265 len = 0;
1266 break;
1267 default:
1268 goto fail_decode;
1269 }
1270 } else {
1271 switch(ist->st->codec->codec_type) {
1272 case CODEC_TYPE_AUDIO:
1273 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1274 ist->st->codec->sample_rate;
1275 break;
1276 case CODEC_TYPE_VIDEO:
1277 if (ist->st->codec->time_base.num != 0) {
1278 ist->next_pts += ((int64_t)AV_TIME_BASE *
1279 ist->st->codec->time_base.num) /
1280 ist->st->codec->time_base.den;
1281 }
1282 break;
1283 }
1284 data_buf = ptr;
1285 data_size = len;
1286 ret = len;
1287 len = 0;
1288 }
1289
1290 buffer_to_free = NULL;
1291 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1292 pre_process_video_frame(ist, (AVPicture *)&picture,
1293 &buffer_to_free);
1294 }
1295
1296 // preprocess audio (volume)
1297 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1298 if (audio_volume != 256) {
1299 short *volp;
1300 volp = samples;
1301 for(i=0;i<(data_size / sizeof(short));i++) {
1302 int v = ((*volp) * audio_volume + 128) >> 8;
1303 if (v < -32768) v = -32768;
1304 if (v > 32767) v = 32767;
1305 *volp++ = v;
1306 }
1307 }
1308 }
1309
1310 /* frame rate emulation */
1311 if (ist->st->codec->rate_emu) {
1312 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1313 int64_t now = av_gettime() - ist->start;
1314 if (pts > now)
1315 usleep(pts - now);
1316
1317 ist->frame++;
1318 }
1319
1320 #if 0
1321 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1322 is the one of the next displayed one */
1323 /* XXX: add mpeg4 too ? */
1324 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1325 if (ist->st->codec->pict_type != B_TYPE) {
1326 int64_t tmp;
1327 tmp = ist->last_ip_pts;
1328 ist->last_ip_pts = ist->frac_pts.val;
1329 ist->frac_pts.val = tmp;
1330 }
1331 }
1332 #endif
1333 /* if output time reached then transcode raw format,
1334 encode packets and output them */
1335 if (start_time == 0 || ist->pts >= start_time)
1336 for(i=0;i<nb_ostreams;i++) {
1337 int frame_size;
1338
1339 ost = ost_table[i];
1340 if (ost->source_index == ist_index) {
1341 os = output_files[ost->file_index];
1342
1343 #if 0
1344 printf("%d: got pts=%0.3f %0.3f\n", i,
1345 (double)pkt->pts / AV_TIME_BASE,
1346 ((double)ist->pts / AV_TIME_BASE) -
1347 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1348 #endif
1349 /* set the input output pts pairs */
1350 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1351
1352 if (ost->encoding_needed) {
1353 switch(ost->st->codec->codec_type) {
1354 case CODEC_TYPE_AUDIO:
1355 do_audio_out(os, ost, ist, data_buf, data_size);
1356 break;
1357 case CODEC_TYPE_VIDEO:
1358 do_video_out(os, ost, ist, &picture, &frame_size);
1359 if (vstats_filename && frame_size)
1360 do_video_stats(os, ost, frame_size);
1361 break;
1362 case CODEC_TYPE_SUBTITLE:
1363 do_subtitle_out(os, ost, ist, &subtitle,
1364 pkt->pts);
1365 break;
1366 default:
1367 abort();
1368 }
1369 } else {
1370 AVFrame avframe; //FIXME/XXX remove this
1371 AVPacket opkt;
1372 av_init_packet(&opkt);
1373
1374 if (!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY))
1375 continue;
1376
1377 /* no reencoding needed : output the packet directly */
1378 /* force the input stream PTS */
1379
1380 avcodec_get_frame_defaults(&avframe);
1381 ost->st->codec->coded_frame= &avframe;
1382 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1383
1384 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1385 audio_size += data_size;
1386 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1387 video_size += data_size;
1388 ost->sync_opts++;
1389 }
1390
1391 opkt.stream_index= ost->index;
1392 if(pkt->pts != AV_NOPTS_VALUE)
1393 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base);
1394 else
1395 opkt.pts= AV_NOPTS_VALUE;
1396
1397 if (pkt->dts == AV_NOPTS_VALUE)
1398 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1399 else
1400 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1401
1402 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1403 opkt.flags= pkt->flags;
1404
1405 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1406 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1407 opkt.destruct= av_destruct_packet;
1408
1409 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1410 ost->st->codec->frame_number++;
1411 ost->frame_number++;
1412 av_free_packet(&opkt);
1413 }
1414 }
1415 }
1416 av_free(buffer_to_free);
1417 /* XXX: allocate the subtitles in the codec ? */
1418 if (subtitle_to_free) {
1419 if (subtitle_to_free->rects != NULL) {
1420 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1421 av_free(subtitle_to_free->rects[i].bitmap);
1422 av_free(subtitle_to_free->rects[i].rgba_palette);
1423 }
1424 av_freep(&subtitle_to_free->rects);
1425 }
1426 subtitle_to_free->num_rects = 0;
1427 subtitle_to_free = NULL;
1428 }
1429 }
1430 discard_packet:
1431 if (pkt == NULL) {
1432 /* EOF handling */
1433
1434 for(i=0;i<nb_ostreams;i++) {
1435 ost = ost_table[i];
1436 if (ost->source_index == ist_index) {
1437 AVCodecContext *enc= ost->st->codec;
1438 os = output_files[ost->file_index];
1439
1440 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1441 continue;
1442 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1443 continue;
1444
1445 if (ost->encoding_needed) {
1446 for(;;) {
1447 AVPacket pkt;
1448 int fifo_bytes;
1449 av_init_packet(&pkt);
1450 pkt.stream_index= ost->index;
1451
1452 switch(ost->st->codec->codec_type) {
1453 case CODEC_TYPE_AUDIO:
1454 fifo_bytes = av_fifo_size(&ost->fifo);
1455 ret = 0;
1456 /* encode any samples remaining in fifo */
1457 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1458 int fs_tmp = enc->frame_size;
1459 enc->frame_size = fifo_bytes / (2 * enc->channels);
1460 av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes);
1461 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1462 enc->frame_size = fs_tmp;
1463 }
1464 if(ret <= 0) {
1465 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1466 }
1467 audio_size += ret;
1468 pkt.flags |= PKT_FLAG_KEY;
1469 break;
1470 case CODEC_TYPE_VIDEO:
1471 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1472 video_size += ret;
1473 if(enc->coded_frame && enc->coded_frame->key_frame)
1474 pkt.flags |= PKT_FLAG_KEY;
1475 if (ost->logfile && enc->stats_out) {
1476 fprintf(ost->logfile, "%s", enc->stats_out);
1477 }
1478 break;
1479 default:
1480 ret=-1;
1481 }
1482
1483 if(ret<=0)
1484 break;
1485 pkt.data= bit_buffer;
1486 pkt.size= ret;
1487 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1488 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1489 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1490 }
1491 }
1492 }
1493 }
1494 }
1495
1496 return 0;
1497 fail_decode:
1498 return -1;
1499 }
1500
1501 static void print_sdp(AVFormatContext **avc, int n)
1502 {
1503 char sdp[2048];
1504
1505 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1506 printf("SDP:\n%s\n", sdp);
1507 }
1508
1509 static int stream_index_from_inputs(AVFormatContext **input_files,
1510 int nb_input_files,
1511 AVInputFile *file_table,
1512 AVInputStream **ist_table,
1513 enum CodecType type,
1514 int programid)
1515 {
1516 int p, q, z;
1517 for(z=0; z<nb_input_files; z++) {
1518 AVFormatContext *ic = input_files[z];
1519 for(p=0; p<ic->nb_programs; p++) {
1520 AVProgram *program = ic->programs[p];
1521 if(program->id != programid)
1522 continue;
1523 for(q=0; q<program->nb_stream_indexes; q++) {
1524 int sidx = program->stream_index[q];
1525 int ris = file_table[z].ist_index + sidx;
1526 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1527 return ris;
1528 }
1529 }
1530 }
1531
1532 return -1;
1533 }
1534
1535 /*
1536 * The following code is the main loop of the file converter
1537 */
1538 static int av_encode(AVFormatContext **output_files,
1539 int nb_output_files,
1540 AVFormatContext **input_files,
1541 int nb_input_files,
1542 AVStreamMap *stream_maps, int nb_stream_maps)
1543 {
1544 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1545 AVFormatContext *is, *os;
1546 AVCodecContext *codec, *icodec;
1547 AVOutputStream *ost, **ost_table = NULL;
1548 AVInputStream *ist, **ist_table = NULL;
1549 AVInputFile *file_table;
1550 int key;
1551 int want_sdp = 1;
1552
1553 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1554 if (!file_table)
1555 goto fail;
1556
1557 /* input stream init */
1558 j = 0;
1559 for(i=0;i<nb_input_files;i++) {
1560 is = input_files[i];
1561 file_table[i].ist_index = j;
1562 file_table[i].nb_streams = is->nb_streams;
1563 j += is->nb_streams;
1564 }
1565 nb_istreams = j;
1566
1567 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1568 if (!ist_table)
1569 goto fail;
1570
1571 for(i=0;i<nb_istreams;i++) {
1572 ist = av_mallocz(sizeof(AVInputStream));
1573 if (!ist)
1574 goto fail;
1575 ist_table[i] = ist;
1576 }
1577 j = 0;
1578 for(i=0;i<nb_input_files;i++) {
1579 is = input_files[i];
1580 for(k=0;k<is->nb_streams;k++) {
1581 ist = ist_table[j++];
1582 ist->st = is->streams[k];
1583 ist->file_index = i;
1584 ist->index = k;
1585 ist->discard = 1; /* the stream is discarded by default
1586 (changed later) */
1587
1588 if (ist->st->codec->rate_emu) {
1589 ist->start = av_gettime();
1590 ist->frame = 0;
1591 }
1592 }
1593 }
1594
1595 /* output stream init */
1596 nb_ostreams = 0;
1597 for(i=0;i<nb_output_files;i++) {
1598 os = output_files[i];
1599 if (!os->nb_streams) {
1600 fprintf(stderr, "Output file does not contain any stream\n");
1601 av_exit(1);
1602 }
1603 nb_ostreams += os->nb_streams;
1604 }
1605 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1606 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1607 av_exit(1);
1608 }
1609
1610 /* Sanity check the mapping args -- do the input files & streams exist? */
1611 for(i=0;i<nb_stream_maps;i++) {
1612 int fi = stream_maps[i].file_index;
1613 int si = stream_maps[i].stream_index;
1614
1615 if (fi < 0 || fi > nb_input_files - 1 ||
1616 si < 0 || si > file_table[fi].nb_streams - 1) {
1617 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1618 av_exit(1);
1619 }
1620 fi = stream_maps[i].sync_file_index;
1621 si = stream_maps[i].sync_stream_index;
1622 if (fi < 0 || fi > nb_input_files - 1 ||
1623 si < 0 || si > file_table[fi].nb_streams - 1) {
1624 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1625 av_exit(1);
1626 }
1627 }
1628
1629 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1630 if (!ost_table)
1631 goto fail;
1632 for(i=0;i<nb_ostreams;i++) {
1633 ost = av_mallocz(sizeof(AVOutputStream));
1634 if (!ost)
1635 goto fail;
1636 ost_table[i] = ost;
1637 }
1638
1639 n = 0;
1640 for(k=0;k<nb_output_files;k++) {
1641 os = output_files[k];
1642 for(i=0;i<os->nb_streams;i++,n++) {
1643 int found;
1644 ost = ost_table[n];
1645 ost->file_index = k;
1646 ost->index = i;
1647 ost->st = os->streams[i];
1648 if (nb_stream_maps > 0) {
1649 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1650 stream_maps[n].stream_index;
1651
1652 /* Sanity check that the stream types match */
1653 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1654 int i= ost->file_index;
1655 dump_format(output_files[i], i, output_files[i]->filename, 1);
1656 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1657 stream_maps[n].file_index, stream_maps[n].stream_index,
1658 ost->file_index, ost->index);
1659 av_exit(1);
1660 }
1661
1662 } else {
1663 if(opt_programid) {
1664 found = 0;
1665 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1666 if(j != -1) {
1667 ost->source_index = j;
1668 found = 1;
1669 }
1670 } else {
1671 /* get corresponding input stream index : we select the first one with the right type */
1672 found = 0;
1673 for(j=0;j<nb_istreams;j++) {
1674 ist = ist_table[j];
1675 if (ist->discard &&
1676 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1677 ost->source_index = j;
1678 found = 1;
1679 break;
1680 }
1681 }
1682 }
1683
1684 if (!found) {
1685 if(! opt_programid) {
1686 /* try again and reuse existing stream */
1687 for(j=0;j<nb_istreams;j++) {
1688 ist = ist_table[j];
1689 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1690 ost->source_index = j;
1691 found = 1;
1692 }
1693 }
1694 }
1695 if (!found) {
1696 int i= ost->file_index;
1697 dump_format(output_files[i], i, output_files[i]->filename, 1);
1698 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1699 ost->file_index, ost->index);
1700 av_exit(1);
1701 }
1702 }
1703 }
1704 ist = ist_table[ost->source_index];
1705 ist->discard = 0;
1706 ost->sync_ist = (nb_stream_maps > 0) ?
1707 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1708 stream_maps[n].sync_stream_index] : ist;
1709 }
1710 }
1711
1712 /* for each output stream, we compute the right encoding parameters */
1713 for(i=0;i<nb_ostreams;i++) {
1714 ost = ost_table[i];
1715 os = output_files[ost->file_index];
1716 ist = ist_table[ost->source_index];
1717
1718 codec = ost->st->codec;
1719 icodec = ist->st->codec;
1720
1721 if (!ost->st->language[0])
1722 av_strlcpy(ost->st->language, ist->st->language,
1723 sizeof(ost->st->language));
1724
1725 ost->st->disposition = ist->st->disposition;
1726
1727 if (ost->st->stream_copy) {
1728 /* if stream_copy is selected, no need to decode or encode */
1729 codec->codec_id = icodec->codec_id;
1730 codec->codec_type = icodec->codec_type;
1731
1732 if(!codec->codec_tag){
1733 if( !os->oformat->codec_tag
1734 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1735 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1736 codec->codec_tag = icodec->codec_tag;
1737 }
1738
1739 codec->bit_rate = icodec->bit_rate;
1740 codec->extradata= icodec->extradata;
1741 codec->extradata_size= icodec->extradata_size;
1742 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1743 codec->time_base = icodec->time_base;
1744 else
1745 codec->time_base = ist->st->time_base;
1746 switch(codec->codec_type) {
1747 case CODEC_TYPE_AUDIO:
1748 if(audio_volume != 256) {
1749 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1750 av_exit(1);
1751 }
1752 codec->sample_rate = icodec->sample_rate;
1753 codec->channels = icodec->channels;
1754 codec->frame_size = icodec->frame_size;
1755 codec->block_align= icodec->block_align;
1756 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1757 codec->block_align= 0;
1758 if(codec->codec_id == CODEC_ID_AC3)
1759 codec->block_align= 0;
1760 break;
1761 case CODEC_TYPE_VIDEO:
1762 if(using_vhook) {
1763 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1764 av_exit(1);
1765 }
1766 codec->pix_fmt = icodec->pix_fmt;
1767 codec->width = icodec->width;
1768 codec->height = icodec->height;
1769 codec->has_b_frames = icodec->has_b_frames;
1770 break;
1771 case CODEC_TYPE_SUBTITLE:
1772 break;
1773 default:
1774 abort();
1775 }
1776 } else {
1777 switch(codec->codec_type) {
1778 case CODEC_TYPE_AUDIO:
1779 if (av_fifo_init(&ost->fifo, 1024))
1780 goto fail;
1781 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1782 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1783 icodec->request_channels = codec->channels;
1784 ist->decoding_needed = 1;
1785 ost->encoding_needed = 1;
1786 break;
1787 case CODEC_TYPE_VIDEO:
1788 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1789 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1790 ost->video_resample = ((codec->width != icodec->width -
1791 (frame_leftBand + frame_rightBand) +
1792 (frame_padleft + frame_padright)) ||
1793 (codec->height != icodec->height -
1794 (frame_topBand + frame_bottomBand) +
1795 (frame_padtop + frame_padbottom)) ||
1796 (codec->pix_fmt != icodec->pix_fmt));
1797 if (ost->video_crop) {
1798 ost->topBand = frame_topBand;
1799 ost->leftBand = frame_leftBand;
1800 }
1801 if (ost->video_pad) {
1802 ost->padtop = frame_padtop;
1803 ost->padleft = frame_padleft;
1804 ost->padbottom = frame_padbottom;
1805 ost->padright = frame_padright;
1806 if (!ost->video_resample) {
1807 avcodec_get_frame_defaults(&ost->pict_tmp);
1808 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1809 codec->width, codec->height))
1810 goto fail;
1811 }
1812 }
1813 if (ost->video_resample) {
1814 avcodec_get_frame_defaults(&ost->pict_tmp);
1815 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1816 codec->width, codec->height)) {
1817 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1818 av_exit(1);
1819 }
1820 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1821 ost->img_resample_ctx = sws_getContext(
1822 icodec->width - (frame_leftBand + frame_rightBand),
1823 icodec->height - (frame_topBand + frame_bottomBand),
1824 icodec->pix_fmt,
1825 codec->width - (frame_padleft + frame_padright),
1826 codec->height - (frame_padtop + frame_padbottom),
1827 codec->pix_fmt,
1828 sws_flags, NULL, NULL, NULL);
1829 if (ost->img_resample_ctx == NULL) {
1830 fprintf(stderr, "Cannot get resampling context\n");
1831 av_exit(1);
1832 }
1833 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1834 }
1835 ost->encoding_needed = 1;
1836 ist->decoding_needed = 1;
1837 break;
1838 case CODEC_TYPE_SUBTITLE:
1839 ost->encoding_needed = 1;
1840 ist->decoding_needed = 1;
1841 break;
1842 default:
1843 abort();
1844 break;
1845 }
1846 /* two pass mode */
1847 if (ost->encoding_needed &&
1848 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1849 char logfilename[1024];
1850 FILE *f;
1851 int size;
1852 char *logbuffer;
1853
1854 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1855 pass_logfilename ?
1856 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1857 if (codec->flags & CODEC_FLAG_PASS1) {
1858 f = fopen(logfilename, "w");
1859 if (!f) {
1860 perror(logfilename);
1861 av_exit(1);
1862 }
1863 ost->logfile = f;
1864 } else {
1865 /* read the log file */
1866 f = fopen(logfilename, "r");
1867 if (!f) {
1868 perror(logfilename);
1869 av_exit(1);
1870 }
1871 fseek(f, 0, SEEK_END);
1872 size = ftell(f);
1873 fseek(f, 0, SEEK_SET);
1874 logbuffer = av_malloc(size + 1);
1875 if (!logbuffer) {
1876 fprintf(stderr, "Could not allocate log buffer\n");
1877 av_exit(1);
1878 }
1879 size = fread(logbuffer, 1, size, f);
1880 fclose(f);
1881 logbuffer[size] = '\0';
1882 codec->stats_in = logbuffer;
1883 }
1884 }
1885 }
1886 if(codec->codec_type == CODEC_TYPE_VIDEO){
1887 int size= codec->width * codec->height;
1888 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1889 }
1890 }
1891
1892 if (!bit_buffer)
1893 bit_buffer = av_malloc(bit_buffer_size);
1894 if (!bit_buffer)
1895 goto fail;
1896
1897 /* dump the file output parameters - cannot be done before in case
1898 of stream copy */
1899 for(i=0;i<nb_output_files;i++) {
1900 dump_format(output_files[i], i, output_files[i]->filename, 1);
1901 }
1902
1903 /* dump the stream mapping */
1904 if (verbose >= 0) {
1905 fprintf(stderr, "Stream mapping:\n");
1906 for(i=0;i<nb_ostreams;i++) {
1907 ost = ost_table[i];
1908 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1909 ist_table[ost->source_index]->file_index,
1910 ist_table[ost->source_index]->index,
1911 ost->file_index,
1912 ost->index);
1913 if (ost->sync_ist != ist_table[ost->source_index])
1914 fprintf(stderr, " [sync #%d.%d]",
1915 ost->sync_ist->file_index,
1916 ost->sync_ist->index);
1917 fprintf(stderr, "\n");
1918 }
1919 }
1920
1921 /* open each encoder */
1922 for(i=0;i<nb_ostreams;i++) {
1923 ost = ost_table[i];
1924 if (ost->encoding_needed) {
1925 AVCodec *codec;
1926 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1927 if (!codec) {
1928 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1929 ost->file_index, ost->index);
1930 av_exit(1);
1931 }
1932 if (avcodec_open(ost->st->codec, codec) < 0) {
1933 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1934 ost->file_index, ost->index);
1935 av_exit(1);
1936 }
1937 extra_size += ost->st->codec->extradata_size;
1938 }
1939 }
1940
1941 /* open each decoder */
1942 for(i=0;i<nb_istreams;i++) {
1943 ist = ist_table[i];
1944 if (ist->decoding_needed) {
1945 AVCodec *codec;
1946 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1947 if (!codec) {
1948 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1949 ist->st->codec->codec_id, ist->file_index, ist->index);
1950 av_exit(1);
1951 }
1952 if (avcodec_open(ist->st->codec, codec) < 0) {
1953 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1954 ist->file_index, ist->index);
1955 av_exit(1);
1956 }
1957 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1958 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1959 }
1960 }
1961
1962 /* init pts */
1963 for(i=0;i<nb_istreams;i++) {
1964 ist = ist_table[i];
1965 is = input_files[ist->file_index];
1966 ist->pts = 0;
1967 ist->next_pts = AV_NOPTS_VALUE;
1968 ist->is_start = 1;
1969 }
1970
1971 /* set meta data information from input file if required */
1972 for (i=0;i<nb_meta_data_maps;i++) {
1973 AVFormatContext *out_file;
1974 AVFormatContext *in_file;
1975
1976 int out_file_index = meta_data_maps[i].out_file;
1977 int in_file_index = meta_data_maps[i].in_file;
1978 if (out_file_index < 0 || out_file_index >= nb_output_files) {
1979 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1980 ret = AVERROR(EINVAL);
1981 goto fail;
1982 }
1983 if (in_file_index < 0 || in_file_index >= nb_input_files) {
1984 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1985 ret = AVERROR(EINVAL);
1986 goto fail;
1987 }
1988
1989 out_file = output_files[out_file_index];
1990 in_file = input_files[in_file_index];
1991
1992 strcpy(out_file->title, in_file->title);
1993 strcpy(out_file->author, in_file->author);
1994 strcpy(out_file->copyright, in_file->copyright);
1995 strcpy(out_file->comment, in_file->comment);
1996 strcpy(out_file->album, in_file->album);
1997 out_file->year = in_file->year;
1998 out_file->track = in_file->track;
1999 strcpy(out_file->genre, in_file->genre);
2000 }
2001
2002 /* open files and write file headers */
2003 for(i=0;i<nb_output_files;i++) {
2004 os = output_files[i];
2005 if (av_write_header(os) < 0) {
2006 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
2007 ret = AVERROR(EINVAL);
2008 goto fail;
2009 }
2010 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2011 want_sdp = 0;
2012 }
2013 }
2014 if (want_sdp) {
2015 print_sdp(output_files, nb_output_files);
2016 }
2017
2018 if (!using_stdin && verbose >= 0) {
2019 fprintf(stderr, "Press [q] to stop encoding\n");
2020 url_set_interrupt_cb(decode_interrupt_cb);
2021 }
2022 term_init();
2023
2024 key = -1;
2025 timer_start = av_gettime();
2026
2027 for(; received_sigterm == 0;) {
2028 int file_index, ist_index;
2029 AVPacket pkt;
2030 double ipts_min;
2031 double opts_min;
2032
2033 redo:
2034 ipts_min= 1e100;
2035 opts_min= 1e100;
2036 /* if 'q' pressed, exits */
2037 if (!using_stdin) {
2038 if (q_pressed)
2039 break;
2040 /* read_key() returns 0 on EOF */
2041 key = read_key();
2042 if (key == 'q')
2043 break;
2044 }
2045
2046 /* select the stream that we must read now by looking at the
2047 smallest output pts */
2048 file_index = -1;
2049 for(i=0;i<nb_ostreams;i++) {
2050 double ipts, opts;
2051 ost = ost_table[i];
2052 os = output_files[ost->file_index];
2053 ist = ist_table[ost->source_index];
2054 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2055 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2056 else
2057 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2058 ipts = (double)ist->pts;
2059 if (!file_table[ist->file_index].eof_reached){
2060 if(ipts < ipts_min) {
2061 ipts_min = ipts;
2062 if(input_sync ) file_index = ist->file_index;
2063 }
2064 if(opts < opts_min) {
2065 opts_min = opts;
2066 if(!input_sync) file_index = ist->file_index;
2067 }
2068 }
2069 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2070 file_index= -1;
2071 break;
2072 }
2073 }
2074 /* if none, if is finished */
2075 if (file_index < 0) {
2076 break;
2077 }
2078
2079 /* finish if recording time exhausted */
2080 if (opts_min >= (recording_time / 1000000.0))
2081 break;
2082
2083 /* finish if limit size exhausted */
2084 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2085 break;
2086
2087 /* read a frame from it and output it in the fifo */
2088 is = input_files[file_index];
2089 if (av_read_frame(is, &pkt) < 0) {
2090 file_table[file_index].eof_reached = 1;
2091 if (opt_shortest)
2092 break;
2093 else
2094 continue;
2095 }
2096
2097 if (do_pkt_dump) {
2098 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2099 }
2100 /* the following test is needed in case new streams appear
2101 dynamically in stream : we ignore them */
2102 if (pkt.stream_index >= file_table[file_index].nb_streams)
2103 goto discard_packet;
2104 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2105 ist = ist_table[ist_index];
2106 if (ist->discard)
2107 goto discard_packet;
2108
2109 if (pkt.dts != AV_NOPTS_VALUE)
2110 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2111 if (pkt.pts != AV_NOPTS_VALUE)
2112 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2113
2114 if(input_files_ts_scale[file_index][pkt.stream_index]){
2115 if(pkt.pts != AV_NOPTS_VALUE)
2116 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2117 if(pkt.dts != AV_NOPTS_VALUE)
2118 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2119 }
2120
2121 // 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);
2122 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
2123 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2124 int64_t delta= pkt_dts - ist->next_pts;
2125 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2126 input_files_ts_offset[ist->file_index]-= delta;
2127 if (verbose > 2)
2128 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2129 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2130 if(pkt.pts != AV_NOPTS_VALUE)
2131 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2132 }
2133 }
2134
2135 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2136 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2137
2138 if (verbose >= 0)
2139 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2140 ist->file_index, ist->index);
2141
2142 av_free_packet(&pkt);
2143 goto redo;
2144 }
2145
2146 discard_packet:
2147 av_free_packet(&pkt);
2148
2149 /* dump report by using the output first video and audio streams */
2150 print_report(output_files, ost_table, nb_ostreams, 0);
2151 }
2152
2153 /* at the end of stream, we must flush the decoder buffers */
2154 for(i=0;i<nb_istreams;i++) {
2155 ist = ist_table[i];
2156 if (ist->decoding_needed) {
2157 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2158 }
2159 }
2160
2161 term_exit();
2162
2163 /* write the trailer if needed and close file */
2164 for(i=0;i<nb_output_files;i++) {
2165 os = output_files[i];
2166 av_write_trailer(os);
2167 }
2168
2169 /* dump report by using the first video and audio streams */
2170 print_report(output_files, ost_table, nb_ostreams, 1);
2171
2172 /* close each encoder */
2173 for(i=0;i<nb_ostreams;i++) {
2174 ost = ost_table[i];
2175 if (ost->encoding_needed) {
2176 av_freep(&ost->st->codec->stats_in);
2177 avcodec_close(ost->st->codec);
2178 }
2179 }
2180
2181 /* close each decoder */
2182 for(i=0;i<nb_istreams;i++) {
2183 ist = ist_table[i];
2184 if (ist->decoding_needed) {
2185 avcodec_close(ist->st->codec);
2186 }
2187 }
2188
2189 /* finished ! */
2190
2191 ret = 0;
2192 fail1:
2193 av_freep(&bit_buffer);
2194 av_free(file_table);
2195
2196 if (ist_table) {
2197 for(i=0;i<nb_istreams;i++) {
2198 ist = ist_table[i];
2199 av_free(ist);
2200 }
2201 av_free(ist_table);
2202 }
2203 if (ost_table) {
2204 for(i=0;i<nb_ostreams;i++) {
2205 ost = ost_table[i];
2206 if (ost) {
2207 if (ost->logfile) {
2208 fclose(ost->logfile);
2209 ost->logfile = NULL;
2210 }
2211 av_fifo_free(&ost->fifo); /* works even if fifo is not
2212 initialized but set to zero */
2213 av_free(ost->pict_tmp.data[0]);
2214 if (ost->video_resample)
2215 sws_freeContext(ost->img_resample_ctx);
2216 if (ost->resample)
2217 audio_resample_close(ost->resample);
2218 if (ost->reformat_ctx)
2219 av_audio_convert_free(ost->reformat_ctx);
2220 av_free(ost);
2221 }
2222 }
2223 av_free(ost_table);
2224 }
2225 return ret;
2226 fail:
2227 ret = AVERROR(ENOMEM);
2228 goto fail1;
2229 }
2230
2231 #if 0
2232 int file_read(const char *filename)
2233 {
2234 URLContext *h;
2235 unsigned char buffer[1024];
2236 int len, i;
2237
2238 if (url_open(&h, filename, O_RDONLY) < 0) {
2239 printf("could not open '%s'\n", filename);
2240 return -1;
2241 }
2242 for(;;) {
2243 len = url_read(h, buffer, sizeof(buffer));
2244 if (len <= 0)
2245 break;
2246 for(i=0;i<len;i++) putchar(buffer[i]);
2247 }
2248 url_close(h);
2249 return 0;
2250 }
2251 #endif
2252
2253 static void opt_format(const char *arg)
2254 {
2255 /* compatibility stuff for pgmyuv */
2256 if (!strcmp(arg, "pgmyuv")) {
2257 pgmyuv_compatibility_hack=1;
2258 // opt_image_format(arg);
2259 arg = "image2";
2260 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2261 }
2262
2263 file_iformat = av_find_input_format(arg);
2264 file_oformat = guess_format(arg, NULL, NULL);
2265 if (!file_iformat && !file_oformat) {
2266 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2267 av_exit(1);
2268 }
2269 }
2270
2271 static int opt_default(const char *opt, const char *arg){
2272 int type;
2273 const AVOption *o= NULL;
2274 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
2275
2276 for(type=0; type<CODEC_TYPE_NB; type++){
2277 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
2278 if(o2)
2279 o = av_set_string2(avctx_opts[type], opt, arg, 1);
2280 }
2281 if(!o)
2282 o = av_set_string2(avformat_opts, opt, arg, 1);
2283 if(!o)
2284 o = av_set_string2(sws_opts, opt, arg, 1);
2285 if(!o){
2286 if(opt[0] == 'a')
2287 o = av_set_string2(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1);
2288 else if(opt[0] == 'v')
2289 o = av_set_string2(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1);
2290 else if(opt[0] == 's')
2291 o = av_set_string2(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1);
2292 }
2293 if(!o)
2294 return -1;
2295
2296 // av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
2297
2298 //FIXME we should always use avctx_opts, ... for storing options so there will not be any need to keep track of what i set over this
2299 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
2300 opt_names[opt_name_count++]= o->name;
2301
2302 if(avctx_opts[0]->debug || avformat_opts->debug)
2303 av_log_set_level(AV_LOG_DEBUG);
2304 return 0;
2305 }
2306
2307 static void opt_video_rc_override_string(const char *arg)
2308 {
2309 video_rc_override_string = arg;
2310 }
2311
2312 static int opt_me_threshold(const char *opt, const char *arg)
2313 {
2314 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2315 return 0;
2316 }
2317
2318 static int opt_verbose(const char *opt, const char *arg)
2319 {
2320 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2321 av_log_set_level(verbose);
2322 return 0;
2323 }
2324
2325 static int opt_frame_rate(const char *opt, const char *arg)
2326 {
2327 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2328 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2329 av_exit(1);
2330 }
2331 return 0;
2332 }
2333
2334 static int opt_bitrate(const char *opt, const char *arg)
2335 {
2336 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2337
2338 opt_default(opt, arg);
2339
2340 if (av_get_int(avctx_opts[codec_type], "b", NULL) < 1000)
2341 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2342
2343 return 0;
2344 }
2345
2346 static void opt_frame_crop_top(const char *arg)
2347 {
2348 frame_topBand = atoi(arg);
2349 if (frame_topBand < 0) {
2350 fprintf(stderr, "Incorrect top crop size\n");
2351 av_exit(1);
2352 }
2353 if ((frame_topBand % 2) != 0) {
2354 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2355 av_exit(1);
2356 }
2357 if ((frame_topBand) >= frame_height){
2358 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2359 av_exit(1);
2360 }
2361 frame_height -= frame_topBand;
2362 }
2363
2364 static void opt_frame_crop_bottom(const char *arg)
2365 {
2366 frame_bottomBand = atoi(arg);
2367 if (frame_bottomBand < 0) {
2368 fprintf(stderr, "Incorrect bottom crop size\n");
2369 av_exit(1);
2370 }
2371 if ((frame_bottomBand % 2) != 0) {
2372 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2373 av_exit(1);
2374 }
2375 if ((frame_bottomBand) >= frame_height){
2376 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2377 av_exit(1);
2378 }
2379 frame_height -= frame_bottomBand;
2380 }
2381
2382 static void opt_frame_crop_left(const char *arg)
2383 {
2384 frame_leftBand = atoi(arg);
2385 if (frame_leftBand < 0) {
2386 fprintf(stderr, "Incorrect left crop size\n");
2387 av_exit(1);
2388 }
2389 if ((frame_leftBand % 2) != 0) {
2390 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2391 av_exit(1);
2392 }
2393 if ((frame_leftBand) >= frame_width){
2394 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2395 av_exit(1);
2396 }
2397 frame_width -= frame_leftBand;
2398 }
2399
2400 static void opt_frame_crop_right(const char *arg)
2401 {
2402 frame_rightBand = atoi(arg);
2403 if (frame_rightBand < 0) {
2404 fprintf(stderr, "Incorrect right crop size\n");
2405 av_exit(1);
2406 }
2407 if ((frame_rightBand % 2) != 0) {
2408 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2409 av_exit(1);
2410 }
2411 if ((frame_rightBand) >= frame_width){
2412 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2413 av_exit(1);
2414 }
2415 frame_width -= frame_rightBand;
2416 }
2417
2418 static void opt_frame_size(const char *arg)
2419 {
2420 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2421 fprintf(stderr, "Incorrect frame size\n");
2422 av_exit(1);
2423 }
2424 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2425 fprintf(stderr, "Frame size must be a multiple of 2\n");
2426 av_exit(1);
2427 }
2428 }
2429
2430
2431 #define SCALEBITS 10
2432 #define ONE_HALF (1 << (SCALEBITS - 1))
2433 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2434
2435 #define RGB_TO_Y(r, g, b) \
2436 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2437 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2438
2439 #define RGB_TO_U(r1, g1, b1, shift)\
2440 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2441 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2442
2443 #define RGB_TO_V(r1, g1, b1, shift)\
2444 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2445 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2446
2447 static void opt_pad_color(const char *arg) {
2448 /* Input is expected to be six hex digits similar to
2449 how colors are expressed in html tags (but without the #) */
2450 int rgb = strtol(arg, NULL, 16);
2451 int r,g,b;
2452
2453 r = (rgb >> 16);
2454 g = ((rgb >> 8) & 255);
2455 b = (rgb & 255);
2456
2457 padcolor[0] = RGB_TO_Y(r,g,b);
2458 padcolor[1] = RGB_TO_U(r,g,b,0);
2459 padcolor[2] = RGB_TO_V(r,g,b,0);
2460 }
2461
2462 static void opt_frame_pad_top(const char *arg)
2463 {
2464 frame_padtop = atoi(arg);
2465 if (frame_padtop < 0) {
2466 fprintf(stderr, "Incorrect top pad size\n");
2467 av_exit(1);
2468 }
2469 if ((frame_padtop % 2) != 0) {
2470 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2471 av_exit(1);
2472 }
2473 }
2474
2475 static void opt_frame_pad_bottom(const char *arg)
2476 {
2477 frame_padbottom = atoi(arg);
2478 if (frame_padbottom < 0) {
2479 fprintf(stderr, "Incorrect bottom pad size\n");
2480 av_exit(1);
2481 }
2482 if ((frame_padbottom % 2) != 0) {
2483 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2484 av_exit(1);
2485 }
2486 }
2487
2488
2489 static void opt_frame_pad_left(const char *arg)
2490 {
2491 frame_padleft = atoi(arg);
2492 if (frame_padleft < 0) {
2493 fprintf(stderr, "Incorrect left pad size\n");
2494 av_exit(1);
2495 }
2496 if ((frame_padleft % 2) != 0) {
2497 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2498 av_exit(1);
2499 }
2500 }
2501
2502
2503 static void opt_frame_pad_right(const char *arg)
2504 {
2505 frame_padright = atoi(arg);
2506 if (frame_padright < 0) {
2507 fprintf(stderr, "Incorrect right pad size\n");
2508 av_exit(1);
2509 }
2510 if ((frame_padright % 2) != 0) {
2511 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2512 av_exit(1);
2513 }
2514 }
2515
2516 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2517 {
2518 int i;
2519 char fmt_str[128];
2520 for (i=-1; i < nb_fmts; i++) {
2521 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2522 fprintf(stdout, "%s\n", fmt_str);
2523 }
2524 }
2525
2526 static void opt_frame_pix_fmt(const char *arg)
2527 {
2528 if (strcmp(arg, "list"))
2529 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2530 else {
2531 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2532 av_exit(0);
2533 }
2534 }
2535
2536 static void opt_frame_aspect_ratio(const char *arg)
2537 {
2538 int x = 0, y = 0;
2539 double ar = 0;
2540 const char *p;
2541 char *end;
2542
2543 p = strchr(arg, ':');
2544 if (p) {
2545 x = strtol(arg, &end, 10);
2546 if (end == p)
2547 y = strtol(end+1, &end, 10);
2548 if (x > 0 && y > 0)
2549 ar = (double)x / (double)y;
2550 } else
2551 ar = strtod(arg, NULL);
2552
2553 if (!ar) {
2554 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2555 av_exit(1);
2556 }
2557 frame_aspect_ratio = ar;
2558 }
2559
2560 static void opt_qscale(const char *arg)
2561 {
2562 video_qscale = atof(arg);
2563 if (video_qscale <= 0 ||
2564 video_qscale > 255) {
2565 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2566 av_exit(1);
2567 }
2568 }
2569
2570 static void opt_top_field_first(const char *arg)
2571 {
2572 top_field_first= atoi(arg);
2573 }
2574
2575 static int opt_thread_count(const char *opt, const char *arg)
2576 {
2577 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2578 #if !defined(HAVE_THREADS)
2579 if (verbose >= 0)
2580 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2581 #endif
2582 return 0;
2583 }
2584
2585 static void opt_audio_sample_fmt(const char *arg)
2586 {
2587 if (strcmp(arg, "list"))
2588 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2589 else {
2590 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2591 av_exit(0);
2592 }
2593 }
2594
2595 static int opt_audio_rate(const char *opt, const char *arg)
2596 {
2597 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2598 return 0;
2599 }
2600
2601 static int opt_audio_channels(const char *opt, const char *arg)
2602 {
2603 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2604 return 0;
2605 }
2606
2607 static void opt_video_channel(const char *arg)
2608 {
2609 video_channel = strtol(arg, NULL, 0);
2610 }
2611
2612 static void opt_video_standard(const char *arg)
2613 {
2614 video_standard = av_strdup(arg);
2615 }
2616
2617 static void opt_codec(int *pstream_copy, char **pcodec_name,
2618 int codec_type, const char *arg)
2619 {
2620 av_freep(pcodec_name);
2621 if (!strcmp(arg, "copy")) {
2622 *pstream_copy = 1;
2623 } else {
2624 *pcodec_name = av_strdup(arg);
2625 }
2626 }
2627
2628 static void opt_audio_codec(const char *arg)
2629 {
2630 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2631 }
2632
2633 static void opt_audio_tag(const char *arg)
2634 {
2635 char *tail;
2636 audio_codec_tag= strtol(arg, &tail, 0);
2637
2638 if(!tail || *tail)
2639 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2640 }
2641
2642 static void opt_video_tag(const char *arg)
2643 {
2644 char *tail;
2645 video_codec_tag= strtol(arg, &tail, 0);
2646
2647 if(!tail || *tail)
2648 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2649 }
2650
2651 #ifdef CONFIG_VHOOK
2652 static void add_frame_hooker(const char *arg)
2653 {
2654 int argc = 0;
2655 char *argv[64];
2656 int i;
2657 char *args = av_strdup(arg);
2658
2659 using_vhook = 1;
2660
2661 argv[0] = strtok(args, " ");
2662 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2663 }
2664
2665 i = frame_hook_add(argc, argv);
2666
2667 if (i != 0) {
2668 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2669 av_exit(1);
2670 }
2671 }
2672 #endif
2673
2674 static void opt_video_codec(const char *arg)
2675 {
2676 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2677 }
2678
2679 static void opt_subtitle_codec(const char *arg)
2680 {
2681 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2682 }
2683
2684 static void opt_map(const char *arg)
2685 {
2686 AVStreamMap *m;
2687 char *p;
2688
2689 m = &stream_maps[nb_stream_maps++];
2690
2691 m->file_index = strtol(arg, &p, 0);
2692 if (*p)
2693 p++;
2694
2695 m->stream_index = strtol(p, &p, 0);
2696 if (*p) {
2697 p++;
2698 m->sync_file_index = strtol(p, &p, 0);
2699 if (*p)
2700 p++;
2701 m->sync_stream_index = strtol(p, &p, 0);
2702 } else {
2703 m->sync_file_index = m->file_index;
2704 m->sync_stream_index = m->stream_index;
2705 }
2706 }
2707
2708 static void opt_map_meta_data(const char *arg)
2709 {
2710 AVMetaDataMap *m;
2711 char *p;
2712
2713 m = &meta_data_maps[nb_meta_data_maps++];
2714
2715 m->out_file = strtol(arg, &p, 0);
2716 if (*p)
2717 p++;
2718
2719 m->in_file = strtol(p, &p, 0);
2720 }
2721
2722 static void opt_input_ts_scale(const char *arg)
2723 {
2724 unsigned int stream;
2725 double scale;
2726 char *p;
2727
2728 stream = strtol(arg, &p, 0);
2729 if (*p)
2730 p++;
2731 scale= strtod(p, &p);
2732
2733 if(stream >= MAX_STREAMS)
2734 av_exit(1);
2735
2736 input_files_ts_scale[nb_input_files][stream]= scale;
2737 }
2738
2739 static int opt_recording_time(const char *opt, const char *arg)
2740 {
2741 recording_time = parse_time_or_die(opt, arg, 1);
2742 return 0;
2743 }
2744
2745 static int opt_start_time(const char *opt, const char *arg)
2746 {
2747 start_time = parse_time_or_die(opt, arg, 1);
2748 return 0;
2749 }
2750
2751 static int opt_rec_timestamp(const char *opt, const char *arg)
2752 {
2753 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2754 return 0;
2755 }
2756
2757 static int opt_input_ts_offset(const char *opt, const char *arg)
2758 {
2759 input_ts_offset = parse_time_or_die(opt, arg, 1);
2760 return 0;
2761 }
2762
2763 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2764 {
2765 const char *codec_string = encoder ? "encoder" : "decoder";
2766 AVCodec *codec;
2767
2768 if(!name)
2769 return CODEC_ID_NONE;
2770 codec = encoder ?
2771 avcodec_find_encoder_by_name(name) :
2772 avcodec_find_decoder_by_name(name);
2773 if(!codec) {
2774 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2775 av_exit(1);
2776 }
2777 if(codec->type != type) {
2778 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2779 av_exit(1);
2780 }
2781 return codec->id;
2782 }
2783
2784 static void set_context_opts(void *ctx, void *opts_ctx, int flags)
2785 {
2786 int i;
2787 for(i=0; i<opt_name_count; i++){
2788 char buf[256];
2789 const AVOption *opt;
2790 const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf));
2791 /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
2792 if(str && ((opt->flags & flags) == flags))
2793 av_set_string2(ctx, opt_names[i], str, 1);
2794 }
2795 }
2796
2797 static void opt_input_file(const char *filename)
2798 {
2799 AVFormatContext *ic;
2800 AVFormatParameters params, *ap = &params;
2801 int err, i, ret, rfps, rfps_base;
2802 int64_t timestamp;
2803
2804 if (!strcmp(filename, "-"))
2805 filename = "pipe:";
2806
2807 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2808 !strcmp(filename, "/dev/stdin");
2809
2810 /* get default parameters from command line */
2811 ic = av_alloc_format_context();
2812
2813 memset(ap, 0, sizeof(*ap));
2814 ap->prealloced_context = 1;
2815 ap->sample_rate = audio_sample_rate;
2816 ap->channels = audio_channels;
2817 ap->time_base.den = frame_rate.num;
2818 ap->time_base.num = frame_rate.den;
2819 ap->width = frame_width + frame_padleft + frame_padright;
2820 ap->height = frame_height + frame_padtop + frame_padbottom;
2821 ap->pix_fmt = frame_pix_fmt;
2822 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2823 ap->channel = video_channel;
2824 ap->standard = video_standard;
2825 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2826 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2827 if(pgmyuv_compatibility_hack)
2828 ap->video_codec_id= CODEC_ID_PGMYUV;
2829
2830 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2831
2832 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2833 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2834 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2835
2836 /* open the input file with generic libav function */
2837 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2838 if (err < 0) {
2839 print_error(filename, err);
2840 av_exit(1);
2841 }
2842 if(opt_programid) {
2843 int i;
2844 for(i=0; i<ic->nb_programs; i++)
2845 if(ic->programs[i]->id != opt_programid)
2846 ic->programs[i]->discard = AVDISCARD_ALL;
2847 }
2848
2849 ic->loop_input = loop_input;
2850
2851 /* If not enough info to get the stream parameters, we decode the
2852 first frames to get it. (used in mpeg case for example) */
2853 ret = av_find_stream_info(ic);
2854 if (ret < 0 && verbose >= 0) {
2855 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2856 av_exit(1);
2857 }
2858
2859 timestamp = start_time;
2860 /* add the stream start time */
2861 if (ic->start_time != AV_NOPTS_VALUE)
2862 timestamp += ic->start_time;
2863
2864 /* if seeking requested, we execute it */
2865 if (start_time != 0) {
2866 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2867 if (ret < 0) {
2868 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2869 filename, (double)timestamp / AV_TIME_BASE);
2870 }
2871 /* reset seek info */
2872 start_time = 0;
2873 }
2874
2875 /* update the current parameters so that they match the one of the input stream */
2876 for(i=0;i<ic->nb_streams;i++) {
2877 AVCodecContext *enc = ic->streams[i]->codec;
2878 if(thread_count>1)
2879 avcodec_thread_init(enc, thread_count);
2880 enc->thread_count= thread_count;
2881 switch(enc->codec_type) {
2882 case CODEC_TYPE_AUDIO:
2883 set_context_opts(enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2884 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2885 audio_channels = enc->channels;
2886 audio_sample_rate = enc->sample_rate;
2887 audio_sample_fmt = enc->sample_fmt;
2888 if(audio_disable)
2889 ic->streams[i]->discard= AVDISCARD_ALL;
2890 break;
2891 case CODEC_TYPE_VIDEO:
2892 set_context_opts(enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2893 frame_height = enc->height;
2894 frame_width = enc->width;
2895 if(ic->streams[i]->sample_aspect_ratio.num)
2896 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2897 else
2898 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2899 frame_aspect_ratio *= (float) enc->width / enc->height;
2900 frame_pix_fmt = enc->pix_fmt;
2901 rfps = ic->streams[i]->r_frame_rate.num;
2902 rfps_base = ic->streams[i]->r_frame_rate.den;
2903 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2904 if(me_threshold)
2905 enc->debug |= FF_DEBUG_MV;
2906
2907 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2908
2909 if (verbose >= 0)
2910 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2911 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2912
2913 (float)rfps / rfps_base, rfps, rfps_base);
2914 }
2915 /* update the current frame rate to match the stream frame rate */
2916 frame_rate.num = rfps;
2917 frame_rate.den = rfps_base;
2918
2919 enc->rate_emu = rate_emu;
2920 if(video_disable)
2921 ic->streams[i]->discard= AVDISCARD_ALL;
2922 else if(video_discard)
2923 ic->streams[i]->discard= video_discard;
2924 break;
2925 case CODEC_TYPE_DATA:
2926 break;
2927 case CODEC_TYPE_SUBTITLE:
2928 if(subtitle_disable)
2929 ic->streams[i]->discard = AVDISCARD_ALL;
2930 break;
2931 case CODEC_TYPE_ATTACHMENT:
2932 case CODEC_TYPE_UNKNOWN:
2933 break;
2934 default:
2935 abort();
2936 }
2937 }
2938
2939 input_files[nb_input_files] = ic;
2940 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2941 /* dump the file content */
2942 if (verbose >= 0)
2943 dump_format(ic, nb_input_files, filename, 0);
2944
2945 nb_input_files++;
2946 file_iformat = NULL;
2947 file_oformat = NULL;
2948
2949 video_channel = 0;
2950
2951 rate_emu = 0;
2952 av_freep(&video_codec_name);
2953 av_freep(&audio_codec_name);
2954 av_freep(&subtitle_codec_name);
2955 }
2956
2957 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2958 int *has_subtitle_ptr)
2959 {
2960 int has_video, has_audio, has_subtitle, i, j;
2961 AVFormatContext *ic;
2962
2963 has_video = 0;
2964 has_audio = 0;
2965 has_subtitle = 0;
2966 for(j=0;j<nb_input_files;j++) {
2967 ic = input_files[j];
2968 for(i=0;i<ic->nb_streams;i++) {
2969 AVCodecContext *enc = ic->streams[i]->codec;
2970 switch(enc->codec_type) {
2971 case CODEC_TYPE_AUDIO:
2972 has_audio = 1;
2973 break;
2974 case CODEC_TYPE_VIDEO:
2975 has_video = 1;
2976 break;
2977 case CODEC_TYPE_SUBTITLE:
2978 has_subtitle = 1;
2979 break;
2980 case CODEC_TYPE_DATA:
2981 case CODEC_TYPE_ATTACHMENT:
2982 case CODEC_TYPE_UNKNOWN:
2983 break;
2984 default:
2985 abort();
2986 }
2987 }
2988 }
2989 *has_video_ptr = has_video;
2990 *has_audio_ptr = has_audio;
2991 *has_subtitle_ptr = has_subtitle;
2992 }
2993
2994 static void new_video_stream(AVFormatContext *oc)
2995 {
2996 AVStream *st;
2997 AVCodecContext *video_enc;
2998 int codec_id;
2999
3000 st = av_new_stream(oc, oc->nb_streams);
3001 if (!st) {
3002 fprintf(stderr, "Could not alloc stream\n");
3003 av_exit(1);
3004 }
3005 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3006 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3007 video_bitstream_filters= NULL;
3008
3009 if(thread_count>1)
3010 avcodec_thread_init(st->codec, thread_count);
3011
3012 video_enc = st->codec;
3013
3014 if(video_codec_tag)
3015 video_enc->codec_tag= video_codec_tag;
3016
3017 if( (video_global_header&1)
3018 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3019 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3020 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3021 }
3022 if(video_global_header&2){
3023 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3024 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3025 }
3026
3027 if (video_stream_copy) {
3028 st->stream_copy = 1;
3029 video_enc->codec_type = CODEC_TYPE_VIDEO;
3030 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3031 } else {
3032 const char *p;
3033 int i;
3034 AVCodec *codec;
3035 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3036
3037 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3038 if (video_codec_name)
3039 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3040
3041 video_enc->codec_id = codec_id;
3042 codec = avcodec_find_encoder(codec_id);
3043
3044 set_context_opts(video_enc, avctx_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3045
3046 video_enc->time_base.den = fps.num;
3047 video_enc->time_base.num = fps.den;
3048 if(codec && codec->supported_framerates){
3049 const AVRational *p= codec->supported_framerates;
3050 const AVRational *best=NULL;
3051 AVRational best_error= (AVRational){INT_MAX, 1};
3052 for(; p->den!=0; p++){
3053 AVRational error= av_sub_q(fps, *p);
3054 if(error.num <0) error.num *= -1;
3055 if(av_cmp_q(error, best_error) < 0){
3056 best_error= error;
3057 best= p;
3058 }
3059 }
3060 video_enc->time_base.den= best->num;
3061 video_enc->time_base.num= best->den;
3062 }
3063
3064 video_enc->width = frame_width + frame_padright + frame_padleft;
3065 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3066 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3067 video_enc->pix_fmt = frame_pix_fmt;
3068 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3069
3070 if(codec && codec->pix_fmts){
3071 const enum PixelFormat *p= codec->pix_fmts;
3072 for(; *p!=-1; p++){
3073 if(*p == video_enc->pix_fmt)
3074 break;
3075 }
3076 if(*p == -1)
3077 video_enc->pix_fmt = codec->pix_fmts[0];
3078 }
3079
3080 if (intra_only)
3081 video_enc->gop_size = 0;
3082 if (video_qscale || same_quality) {
3083 video_enc->flags |= CODEC_FLAG_QSCALE;
3084 video_enc->global_quality=
3085 st->quality = FF_QP2LAMBDA * video_qscale;
3086 }
3087
3088 if(intra_matrix)
3089 video_enc->intra_matrix = intra_matrix;
3090 if(inter_matrix)
3091 video_enc->inter_matrix = inter_matrix;
3092
3093 video_enc->thread_count = thread_count;
3094 p= video_rc_override_string;
3095 for(i=0; p; i++){
3096 int start, end, q;
3097 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3098 if(e!=3){
3099 fprintf(stderr, "error parsing rc_override\n");
3100 av_exit(1);
3101 }
3102 video_enc->rc_override=
3103 av_realloc(video_enc->rc_override,
3104 sizeof(RcOverride)*(i+1));
3105 video_enc->rc_override[i].start_frame= start;
3106 video_enc->rc_override[i].end_frame = end;
3107 if(q>0){
3108 video_enc->rc_override[i].qscale= q;
3109 video_enc->rc_override[i].quality_factor= 1.0;
3110 }
3111 else{
3112 video_enc->rc_override[i].qscale= 0;
3113 video_enc->rc_override[i].quality_factor= -q/100.0;
3114 }
3115 p= strchr(p, '/');
3116 if(p) p++;
3117 }
3118 video_enc->rc_override_count=i;
3119 if (!video_enc->rc_initial_buffer_occupancy)
3120 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3121 video_enc->me_threshold= me_threshold;
3122 video_enc->intra_dc_precision= intra_dc_precision - 8;
3123
3124 if (do_psnr)
3125 video_enc->flags|= CODEC_FLAG_PSNR;
3126
3127 /* two pass mode */
3128 if (do_pass) {
3129 if (do_pass == 1) {
3130 video_enc->flags |= CODEC_FLAG_PASS1;
3131 } else {
3132 video_enc->flags |= CODEC_FLAG_PASS2;
3133 }
3134 }
3135 }
3136
3137 /* reset some key parameters */
3138 video_disable = 0;
3139 av_freep(&video_codec_name);
3140 video_stream_copy = 0;
3141 }
3142
3143 static void new_audio_stream(AVFormatContext *oc)
3144 {
3145 AVStream *st;
3146 AVCodecContext *audio_enc;
3147 int codec_id;
3148
3149 st = av_new_stream(oc, oc->nb_streams);
3150 if (!st) {
3151 fprintf(stderr, "Could not alloc stream\n");
3152 av_exit(1);
3153 }
3154 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3155
3156 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3157 audio_bitstream_filters= NULL;
3158
3159 if(thread_count>1)
3160 avcodec_thread_init(st->codec, thread_count);
3161
3162 audio_enc = st->codec;
3163 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3164
3165 if(audio_codec_tag)
3166 audio_enc->codec_tag= audio_codec_tag;
3167
3168 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3169 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3170 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3171 }
3172 if (audio_stream_copy) {
3173 st->stream_copy = 1;
3174 audio_enc->channels = audio_channels;
3175 } else {
3176 AVCodec *codec;
3177 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3178
3179 set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3180
3181 if (audio_codec_name)
3182 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3183 audio_enc->codec_id = codec_id;
3184 codec = avcodec_find_encoder(codec_id);
3185
3186 if (audio_qscale > QSCALE_NONE) {
3187 audio_enc->flags |= CODEC_FLAG_QSCALE;
3188 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3189 }
3190 audio_enc->thread_count = thread_count;
3191 audio_enc->channels = audio_channels;
3192 audio_enc->sample_fmt = audio_sample_fmt;
3193
3194 if(codec && codec->sample_fmts){
3195 const enum SampleFormat *p= codec->sample_fmts;
3196 for(; *p!=-1; p++){
3197 if(*p == audio_enc->sample_fmt)
3198 break;
3199 }
3200 if(*p == -1)
3201 audio_enc->sample_fmt = codec->sample_fmts[0];
3202 }
3203 }
3204 audio_enc->sample_rate = audio_sample_rate;
3205 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3206 if (audio_language) {
3207 av_strlcpy(st->language, audio_language, sizeof(st->language));
3208 av_free(audio_language);
3209 audio_language = NULL;
3210 }
3211
3212 /* reset some key parameters */
3213 audio_disable = 0;
3214 av_freep(&audio_codec_name);
3215 audio_stream_copy = 0;
3216 }
3217
3218 static void new_subtitle_stream(AVFormatContext *oc)
3219 {