Add -timelimit option
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #if HAVE_SYS_RESOURCE_H
45 #include <sys/types.h>
46 #include <sys/resource.h>
47 #elif HAVE_GETPROCESSTIMES
48 #include <windows.h>
49 #endif
50
51 #if HAVE_SYS_SELECT_H
52 #include <sys/select.h>
53 #endif
54
55 #if HAVE_TERMIOS_H
56 #include <fcntl.h>
57 #include <sys/ioctl.h>
58 #include <sys/time.h>
59 #include <termios.h>
60 #elif HAVE_CONIO_H
61 #include <conio.h>
62 #endif
63 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
64 #include <time.h>
65
66 #include "cmdutils.h"
67
68 #undef NDEBUG
69 #include <assert.h>
70
71 #undef exit
72
73 const char program_name[] = "FFmpeg";
74 const int program_birth_year = 2000;
75
76 /* select an input stream for an output stream */
77 typedef struct AVStreamMap {
78 int file_index;
79 int stream_index;
80 int sync_file_index;
81 int sync_stream_index;
82 } AVStreamMap;
83
84 /** select an input file for an output file */
85 typedef struct AVMetaDataMap {
86 int out_file;
87 int in_file;
88 } AVMetaDataMap;
89
90 static const OptionDef options[];
91
92 #define MAX_FILES 20
93
94 static const char *last_asked_format = NULL;
95 static AVFormatContext *input_files[MAX_FILES];
96 static int64_t input_files_ts_offset[MAX_FILES];
97 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
98 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
99 static int nb_input_files = 0;
100 static int nb_icodecs;
101
102 static AVFormatContext *output_files[MAX_FILES];
103 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
104 static int nb_output_files = 0;
105 static int nb_ocodecs;
106
107 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
108 static int nb_stream_maps;
109
110 static AVMetaDataMap meta_data_maps[MAX_FILES];
111 static int nb_meta_data_maps;
112
113 static int frame_width = 0;
114 static int frame_height = 0;
115 static float frame_aspect_ratio = 0;
116 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
117 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
118 static int frame_padtop = 0;
119 static int frame_padbottom = 0;
120 static int frame_padleft = 0;
121 static int frame_padright = 0;
122 static int padcolor[3] = {16,128,128}; /* default to black */
123 static int frame_topBand = 0;
124 static int frame_bottomBand = 0;
125 static int frame_leftBand = 0;
126 static int frame_rightBand = 0;
127 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
128 static AVRational frame_rate;
129 static float video_qscale = 0;
130 static uint16_t *intra_matrix = NULL;
131 static uint16_t *inter_matrix = NULL;
132 static const char *video_rc_override_string=NULL;
133 static int video_disable = 0;
134 static int video_discard = 0;
135 static char *video_codec_name = NULL;
136 static int video_codec_tag = 0;
137 static char *video_language = NULL;
138 static int same_quality = 0;
139 static int do_deinterlace = 0;
140 static int top_field_first = -1;
141 static int me_threshold = 0;
142 static int intra_dc_precision = 8;
143 static int loop_input = 0;
144 static int loop_output = AVFMT_NOOUTPUTLOOP;
145 static int qp_hist = 0;
146
147 static int intra_only = 0;
148 static int audio_sample_rate = 44100;
149 static int64_t channel_layout = 0;
150 #define QSCALE_NONE -99999
151 static float audio_qscale = QSCALE_NONE;
152 static int audio_disable = 0;
153 static int audio_channels = 1;
154 static char *audio_codec_name = NULL;
155 static int audio_codec_tag = 0;
156 static char *audio_language = NULL;
157
158 static int subtitle_disable = 0;
159 static char *subtitle_codec_name = NULL;
160 static char *subtitle_language = NULL;
161 static int subtitle_codec_tag = 0;
162
163 static float mux_preload= 0.5;
164 static float mux_max_delay= 0.7;
165
166 static int64_t recording_time = INT64_MAX;
167 static int64_t start_time = 0;
168 static int64_t rec_timestamp = 0;
169 static int64_t input_ts_offset = 0;
170 static int file_overwrite = 0;
171 static int metadata_count;
172 static AVMetadataTag *metadata;
173 static int do_benchmark = 0;
174 static int do_hex_dump = 0;
175 static int do_pkt_dump = 0;
176 static int do_psnr = 0;
177 static int do_pass = 0;
178 static char *pass_logfilename_prefix = NULL;
179 static int audio_stream_copy = 0;
180 static int video_stream_copy = 0;
181 static int subtitle_stream_copy = 0;
182 static int video_sync_method= -1;
183 static int audio_sync_method= 0;
184 static float audio_drift_threshold= 0.1;
185 static int copy_ts= 0;
186 static int opt_shortest = 0;
187 static int video_global_header = 0;
188 static char *vstats_filename;
189 static FILE *vstats_file;
190 static int opt_programid = 0;
191 static int copy_initial_nonkeyframes = 0;
192
193 static int rate_emu = 0;
194
195 static int video_channel = 0;
196 static char *video_standard;
197
198 static int audio_volume = 256;
199
200 static int exit_on_error = 0;
201 static int using_stdin = 0;
202 static int verbose = 1;
203 static int thread_count= 1;
204 static int q_pressed = 0;
205 static int64_t video_size = 0;
206 static int64_t audio_size = 0;
207 static int64_t extra_size = 0;
208 static int nb_frames_dup = 0;
209 static int nb_frames_drop = 0;
210 static int input_sync;
211 static uint64_t limit_filesize = 0;
212 static int force_fps = 0;
213
214 static int pgmyuv_compatibility_hack=0;
215 static float dts_delta_threshold = 10;
216
217 static unsigned int sws_flags = SWS_BICUBIC;
218
219 static int64_t timer_start;
220
221 static uint8_t *audio_buf;
222 static uint8_t *audio_out;
223 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
224
225 static short *samples;
226
227 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
228 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
230 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
231
232 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
233
234 struct AVInputStream;
235
236 typedef struct AVOutputStream {
237 int file_index; /* file index */
238 int index; /* stream index in the output file */
239 int source_index; /* AVInputStream index */
240 AVStream *st; /* stream in the output file */
241 int encoding_needed; /* true if encoding needed for this stream */
242 int frame_number;
243 /* input pts and corresponding output pts
244 for A/V sync */
245 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
246 struct AVInputStream *sync_ist; /* input stream to sync against */
247 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
248 /* video only */
249 int video_resample;
250 AVFrame pict_tmp; /* temporary image for resampling */
251 struct SwsContext *img_resample_ctx; /* for image resampling */
252 int resample_height;
253 int resample_width;
254 int resample_pix_fmt;
255
256 /* full frame size of first frame */
257 int original_height;
258 int original_width;
259
260 /* cropping area sizes */
261 int video_crop;
262 int topBand;
263 int bottomBand;
264 int leftBand;
265 int rightBand;
266
267 /* cropping area of first frame */
268 int original_topBand;
269 int original_bottomBand;
270 int original_leftBand;
271 int original_rightBand;
272
273 /* padding area sizes */
274 int video_pad;
275 int padtop;
276 int padbottom;
277 int padleft;
278 int padright;
279
280 /* audio only */
281 int audio_resample;
282 ReSampleContext *resample; /* for audio resampling */
283 int reformat_pair;
284 AVAudioConvert *reformat_ctx;
285 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
286 FILE *logfile;
287 } AVOutputStream;
288
289 typedef struct AVInputStream {
290 int file_index;
291 int index;
292 AVStream *st;
293 int discard; /* true if stream data should be discarded */
294 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
295 int64_t sample_index; /* current sample */
296
297 int64_t start; /* time when read started */
298 int64_t next_pts; /* synthetic pts for cases where pkt.pts
299 is not defined */
300 int64_t pts; /* current pts */
301 int is_start; /* is 1 at the start and after a discontinuity */
302 } AVInputStream;
303
304 typedef struct AVInputFile {
305 int eof_reached; /* true if eof reached */
306 int ist_index; /* index of first stream in ist_table */
307 int buffer_size; /* current total buffer size */
308 int nb_streams; /* nb streams we are aware of */
309 } AVInputFile;
310
311 #if HAVE_TERMIOS_H
312
313 /* init terminal so that we can grab keys */
314 static struct termios oldtty;
315 #endif
316
317 static void term_exit(void)
318 {
319 #if HAVE_TERMIOS_H
320 tcsetattr (0, TCSANOW, &oldtty);
321 #endif
322 }
323
324 static volatile int received_sigterm = 0;
325
326 static void
327 sigterm_handler(int sig)
328 {
329 received_sigterm = sig;
330 term_exit();
331 }
332
333 static void term_init(void)
334 {
335 #if HAVE_TERMIOS_H
336 struct termios tty;
337
338 tcgetattr (0, &tty);
339 oldtty = tty;
340
341 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
342 |INLCR|IGNCR|ICRNL|IXON);
343 tty.c_oflag |= OPOST;
344 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
345 tty.c_cflag &= ~(CSIZE|PARENB);
346 tty.c_cflag |= CS8;
347 tty.c_cc[VMIN] = 1;
348 tty.c_cc[VTIME] = 0;
349
350 tcsetattr (0, TCSANOW, &tty);
351 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
352 #endif
353
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
356 #ifdef SIGXCPU
357 signal(SIGXCPU, sigterm_handler);
358 #endif
359
360 /*
361 register a function to be called at normal program termination
362 */
363 atexit(term_exit);
364 #if CONFIG_BEOS_NETSERVER
365 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
366 #endif
367 }
368
369 /* read a key without blocking */
370 static int read_key(void)
371 {
372 #if HAVE_TERMIOS_H
373 int n = 1;
374 unsigned char ch;
375 #if !CONFIG_BEOS_NETSERVER
376 struct timeval tv;
377 fd_set rfds;
378
379 FD_ZERO(&rfds);
380 FD_SET(0, &rfds);
381 tv.tv_sec = 0;
382 tv.tv_usec = 0;
383 n = select(1, &rfds, NULL, NULL, &tv);
384 #endif
385 if (n > 0) {
386 n = read(0, &ch, 1);
387 if (n == 1)
388 return ch;
389
390 return n;
391 }
392 #elif HAVE_CONIO_H
393 if(kbhit())
394 return(getch());
395 #endif
396 return -1;
397 }
398
399 static int decode_interrupt_cb(void)
400 {
401 return q_pressed || (q_pressed = read_key() == 'q');
402 }
403
404 static int av_exit(int ret)
405 {
406 int i;
407
408 /* close files */
409 for(i=0;i<nb_output_files;i++) {
410 /* maybe av_close_output_file ??? */
411 AVFormatContext *s = output_files[i];
412 int j;
413 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
414 url_fclose(s->pb);
415 for(j=0;j<s->nb_streams;j++) {
416 av_metadata_free(&s->streams[j]->metadata);
417 av_free(s->streams[j]->codec);
418 av_free(s->streams[j]);
419 }
420 for(j=0;j<s->nb_programs;j++) {
421 av_metadata_free(&s->programs[j]->metadata);
422 }
423 for(j=0;j<s->nb_chapters;j++) {
424 av_metadata_free(&s->chapters[j]->metadata);
425 }
426 av_metadata_free(&s->metadata);
427 av_free(s);
428 }
429 for(i=0;i<nb_input_files;i++)
430 av_close_input_file(input_files[i]);
431
432 av_free(intra_matrix);
433 av_free(inter_matrix);
434
435 if (vstats_file)
436 fclose(vstats_file);
437 av_free(vstats_filename);
438
439 av_free(opt_names);
440
441 av_free(video_codec_name);
442 av_free(audio_codec_name);
443 av_free(subtitle_codec_name);
444
445 av_free(video_standard);
446
447 #if CONFIG_POWERPC_PERF
448 void powerpc_display_perf_report(void);
449 powerpc_display_perf_report();
450 #endif /* CONFIG_POWERPC_PERF */
451
452 for (i=0;i<CODEC_TYPE_NB;i++)
453 av_free(avcodec_opts[i]);
454 av_free(avformat_opts);
455 av_free(sws_opts);
456 av_free(audio_buf);
457 av_free(audio_out);
458 allocated_audio_buf_size= allocated_audio_out_size= 0;
459 av_free(samples);
460
461 if (received_sigterm) {
462 fprintf(stderr,
463 "Received signal %d: terminating.\n",
464 (int) received_sigterm);
465 exit (255);
466 }
467
468 exit(ret); /* not all OS-es handle main() return value */
469 return ret;
470 }
471
472 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
473 {
474 int i, err;
475 AVFormatContext *ic;
476 int nopts = 0;
477
478 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
479 if (err < 0)
480 return err;
481 /* copy stream format */
482 s->nb_streams = ic->nb_streams;
483 for(i=0;i<ic->nb_streams;i++) {
484 AVStream *st;
485
486 // FIXME: a more elegant solution is needed
487 st = av_mallocz(sizeof(AVStream));
488 memcpy(st, ic->streams[i], sizeof(AVStream));
489 st->codec = avcodec_alloc_context();
490 if (!st->codec) {
491 print_error(filename, AVERROR(ENOMEM));
492 av_exit(1);
493 }
494 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
495 s->streams[i] = st;
496
497 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
498 st->stream_copy = 1;
499 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
500 st->stream_copy = 1;
501
502 if(!st->codec->thread_count)
503 st->codec->thread_count = 1;
504 if(st->codec->thread_count>1)
505 avcodec_thread_init(st->codec, st->codec->thread_count);
506
507 if(st->codec->flags & CODEC_FLAG_BITEXACT)
508 nopts = 1;
509 }
510
511 if (!nopts)
512 s->timestamp = av_gettime();
513
514 av_close_input_file(ic);
515 return 0;
516 }
517
518 static double
519 get_sync_ipts(const AVOutputStream *ost)
520 {
521 const AVInputStream *ist = ost->sync_ist;
522 return (double)(ist->pts - start_time)/AV_TIME_BASE;
523 }
524
525 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
526 int ret;
527
528 while(bsfc){
529 AVPacket new_pkt= *pkt;
530 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
531 &new_pkt.data, &new_pkt.size,
532 pkt->data, pkt->size,
533 pkt->flags & PKT_FLAG_KEY);
534 if(a>0){
535 av_free_packet(pkt);
536 new_pkt.destruct= av_destruct_packet;
537 } else if(a<0){
538 fprintf(stderr, "%s failed for stream %d, codec %s",
539 bsfc->filter->name, pkt->stream_index,
540 avctx->codec ? avctx->codec->name : "copy");
541 print_error("", a);
542 if (exit_on_error)
543 av_exit(1);
544 }
545 *pkt= new_pkt;
546
547 bsfc= bsfc->next;
548 }
549
550 ret= av_interleaved_write_frame(s, pkt);
551 if(ret < 0){
552 print_error("av_interleaved_write_frame()", ret);
553 av_exit(1);
554 }
555 }
556
557 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
558
559 static void do_audio_out(AVFormatContext *s,
560 AVOutputStream *ost,
561 AVInputStream *ist,
562 unsigned char *buf, int size)
563 {
564 uint8_t *buftmp;
565 int64_t audio_out_size, audio_buf_size;
566
567 int size_out, frame_bytes, ret;
568 AVCodecContext *enc= ost->st->codec;
569 AVCodecContext *dec= ist->st->codec;
570 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
571 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
572 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
573
574 audio_buf_size= (size + isize*dec->channels - 1) / (isize*dec->channels);
575 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
576 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
577 audio_buf_size*= osize*enc->channels;
578
579 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
580 if(coded_bps > 8*osize)
581 audio_out_size= audio_out_size * coded_bps / (8*osize);
582 audio_out_size += FF_MIN_BUFFER_SIZE;
583
584 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
585 fprintf(stderr, "Buffer sizes too large\n");
586 av_exit(1);
587 }
588
589 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
590 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
591 if (!audio_buf || !audio_out){
592 fprintf(stderr, "Out of memory in do_audio_out\n");
593 av_exit(1);
594 }
595
596 if (enc->channels != dec->channels)
597 ost->audio_resample = 1;
598
599 if (ost->audio_resample && !ost->resample) {
600 if (dec->sample_fmt != SAMPLE_FMT_S16)
601 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
602 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
603 enc->sample_rate, dec->sample_rate,
604 enc->sample_fmt, dec->sample_fmt,
605 16, 10, 0, 0.8);
606 if (!ost->resample) {
607 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
608 dec->channels, dec->sample_rate,
609 enc->channels, enc->sample_rate);
610 av_exit(1);
611 }
612 }
613
614 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
615 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
616 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
617 if (ost->reformat_ctx)
618 av_audio_convert_free(ost->reformat_ctx);
619 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
620 dec->sample_fmt, 1, NULL, 0);
621 if (!ost->reformat_ctx) {
622 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
623 avcodec_get_sample_fmt_name(dec->sample_fmt),
624 avcodec_get_sample_fmt_name(enc->sample_fmt));
625 av_exit(1);
626 }
627 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
628 }
629
630 if(audio_sync_method){
631 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
632 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
633 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
634 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
635
636 //FIXME resample delay
637 if(fabs(delta) > 50){
638 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
639 if(byte_delta < 0){
640 byte_delta= FFMAX(byte_delta, -size);
641 size += byte_delta;
642 buf -= byte_delta;
643 if(verbose > 2)
644 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
645 if(!size)
646 return;
647 ist->is_start=0;
648 }else{
649 static uint8_t *input_tmp= NULL;
650 input_tmp= av_realloc(input_tmp, byte_delta + size);
651
652 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
653 ist->is_start=0;
654 else
655 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
656
657 memset(input_tmp, 0, byte_delta);
658 memcpy(input_tmp + byte_delta, buf, size);
659 buf= input_tmp;
660 size += byte_delta;
661 if(verbose > 2)
662 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
663 }
664 }else if(audio_sync_method>1){
665 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
666 assert(ost->audio_resample);
667 if(verbose > 2)
668 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
669 // 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));
670 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
671 }
672 }
673 }else
674 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
675 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
676
677 if (ost->audio_resample) {
678 buftmp = audio_buf;
679 size_out = audio_resample(ost->resample,
680 (short *)buftmp, (short *)buf,
681 size / (ist->st->codec->channels * isize));
682 size_out = size_out * enc->channels * osize;
683 } else {
684 buftmp = buf;
685 size_out = size;
686 }
687
688 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
689 const void *ibuf[6]= {buftmp};
690 void *obuf[6]= {audio_buf};
691 int istride[6]= {isize};
692 int ostride[6]= {osize};
693 int len= size_out/istride[0];
694 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
695 printf("av_audio_convert() failed\n");
696 if (exit_on_error)
697 av_exit(1);
698 return;
699 }
700 buftmp = audio_buf;
701 size_out = len*osize;
702 }
703
704 /* now encode as many frames as possible */
705 if (enc->frame_size > 1) {
706 /* output resampled raw samples */
707 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
708 fprintf(stderr, "av_fifo_realloc2() failed\n");
709 av_exit(1);
710 }
711 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
712
713 frame_bytes = enc->frame_size * osize * enc->channels;
714
715 while (av_fifo_size(ost->fifo) >= frame_bytes) {
716 AVPacket pkt;
717 av_init_packet(&pkt);
718
719 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
720
721 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
722
723 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
724 (short *)audio_buf);
725 if (ret < 0) {
726 fprintf(stderr, "Audio encoding failed\n");
727 av_exit(1);
728 }
729 audio_size += ret;
730 pkt.stream_index= ost->index;
731 pkt.data= audio_out;
732 pkt.size= ret;
733 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
734 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
735 pkt.flags |= PKT_FLAG_KEY;
736 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
737
738 ost->sync_opts += enc->frame_size;
739 }
740 } else {
741 AVPacket pkt;
742 av_init_packet(&pkt);
743
744 ost->sync_opts += size_out / (osize * enc->channels);
745
746 /* output a pcm frame */
747 /* determine the size of the coded buffer */
748 size_out /= osize;
749 if (coded_bps)
750 size_out = size_out*coded_bps/8;
751
752 if(size_out > audio_out_size){
753 fprintf(stderr, "Internal error, buffer size too small\n");
754 av_exit(1);
755 }
756
757 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
758 ret = avcodec_encode_audio(enc, audio_out, size_out,
759 (short *)buftmp);
760 if (ret < 0) {
761 fprintf(stderr, "Audio encoding failed\n");
762 av_exit(1);
763 }
764 audio_size += ret;
765 pkt.stream_index= ost->index;
766 pkt.data= audio_out;
767 pkt.size= ret;
768 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
769 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
770 pkt.flags |= PKT_FLAG_KEY;
771 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
772 }
773 }
774
775 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
776 {
777 AVCodecContext *dec;
778 AVPicture *picture2;
779 AVPicture picture_tmp;
780 uint8_t *buf = 0;
781
782 dec = ist->st->codec;
783
784 /* deinterlace : must be done before any resize */
785 if (do_deinterlace) {
786 int size;
787
788 /* create temporary picture */
789 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
790 buf = av_malloc(size);
791 if (!buf)
792 return;
793
794 picture2 = &picture_tmp;
795 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
796
797 if(avpicture_deinterlace(picture2, picture,
798 dec->pix_fmt, dec->width, dec->height) < 0) {
799 /* if error, do not deinterlace */
800 fprintf(stderr, "Deinterlacing failed\n");
801 av_free(buf);
802 buf = NULL;
803 picture2 = picture;
804 }
805 } else {
806 picture2 = picture;
807 }
808
809 if (picture != picture2)
810 *picture = *picture2;
811 *bufp = buf;
812 }
813
814 /* we begin to correct av delay at this threshold */
815 #define AV_DELAY_MAX 0.100
816
817 static void do_subtitle_out(AVFormatContext *s,
818 AVOutputStream *ost,
819 AVInputStream *ist,
820 AVSubtitle *sub,
821 int64_t pts)
822 {
823 static uint8_t *subtitle_out = NULL;
824 int subtitle_out_max_size = 1024 * 1024;
825 int subtitle_out_size, nb, i;
826 AVCodecContext *enc;
827 AVPacket pkt;
828
829 if (pts == AV_NOPTS_VALUE) {
830 fprintf(stderr, "Subtitle packets must have a pts\n");
831 if (exit_on_error)
832 av_exit(1);
833 return;
834 }
835
836 enc = ost->st->codec;
837
838 if (!subtitle_out) {
839 subtitle_out = av_malloc(subtitle_out_max_size);
840 }
841
842 /* Note: DVB subtitle need one packet to draw them and one other
843 packet to clear them */
844 /* XXX: signal it in the codec context ? */
845 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
846 nb = 2;
847 else
848 nb = 1;
849
850 for(i = 0; i < nb; i++) {
851 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
852 // start_display_time is required to be 0
853 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
854 sub->end_display_time -= sub->start_display_time;
855 sub->start_display_time = 0;
856 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
857 subtitle_out_max_size, sub);
858 if (subtitle_out_size < 0) {
859 fprintf(stderr, "Subtitle encoding failed\n");
860 av_exit(1);
861 }
862
863 av_init_packet(&pkt);
864 pkt.stream_index = ost->index;
865 pkt.data = subtitle_out;
866 pkt.size = subtitle_out_size;
867 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
868 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
869 /* XXX: the pts correction is handled here. Maybe handling
870 it in the codec would be better */
871 if (i == 0)
872 pkt.pts += 90 * sub->start_display_time;
873 else
874 pkt.pts += 90 * sub->end_display_time;
875 }
876 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
877 }
878 }
879
880 static int bit_buffer_size= 1024*256;
881 static uint8_t *bit_buffer= NULL;
882
883 static void do_video_out(AVFormatContext *s,
884 AVOutputStream *ost,
885 AVInputStream *ist,
886 AVFrame *in_picture,
887 int *frame_size)
888 {
889 int nb_frames, i, ret;
890 int64_t topBand, bottomBand, leftBand, rightBand;
891 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
892 AVFrame picture_crop_temp, picture_pad_temp;
893 AVCodecContext *enc, *dec;
894
895 avcodec_get_frame_defaults(&picture_crop_temp);
896 avcodec_get_frame_defaults(&picture_pad_temp);
897
898 enc = ost->st->codec;
899 dec = ist->st->codec;
900
901 /* by default, we output a single frame */
902 nb_frames = 1;
903
904 *frame_size = 0;
905
906 if(video_sync_method){
907 double vdelta;
908 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
909 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
910 if (vdelta < -1.1)
911 nb_frames = 0;
912 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
913 if(vdelta<=-0.6){
914 nb_frames=0;
915 }else if(vdelta>0.6)
916 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
917 }else if (vdelta > 1.1)
918 nb_frames = lrintf(vdelta);
919 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
920 if (nb_frames == 0){
921 ++nb_frames_drop;
922 if (verbose>2)
923 fprintf(stderr, "*** drop!\n");
924 }else if (nb_frames > 1) {
925 nb_frames_dup += nb_frames - 1;
926 if (verbose>2)
927 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
928 }
929 }else
930 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
931
932 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
933 if (nb_frames <= 0)
934 return;
935
936 if (ost->video_crop) {
937 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
938 fprintf(stderr, "error cropping picture\n");
939 if (exit_on_error)
940 av_exit(1);
941 return;
942 }
943 formatted_picture = &picture_crop_temp;
944 } else {
945 formatted_picture = in_picture;
946 }
947
948 final_picture = formatted_picture;
949 padding_src = formatted_picture;
950 resampling_dst = &ost->pict_tmp;
951 if (ost->video_pad) {
952 final_picture = &ost->pict_tmp;
953 if (ost->video_resample) {
954 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
955 fprintf(stderr, "error padding picture\n");
956 if (exit_on_error)
957 av_exit(1);
958 return;
959 }
960 resampling_dst = &picture_pad_temp;
961 }
962 }
963
964 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
965 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
966 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
967
968 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
969 if(!ost->video_resample)
970 av_exit(1);
971 }
972
973 if (ost->video_resample) {
974 padding_src = NULL;
975 final_picture = &ost->pict_tmp;
976 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
977 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
978 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
979
980 /* keep bands proportional to the frame size */
981 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
982 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
983 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
984 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
985
986 /* sanity check to ensure no bad band sizes sneak in */
987 assert(topBand <= INT_MAX && topBand >= 0);
988 assert(bottomBand <= INT_MAX && bottomBand >= 0);
989 assert(leftBand <= INT_MAX && leftBand >= 0);
990 assert(rightBand <= INT_MAX && rightBand >= 0);
991
992 ost->topBand = topBand;
993 ost->bottomBand = bottomBand;
994 ost->leftBand = leftBand;
995 ost->rightBand = rightBand;
996
997 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
998 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
999 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1000
1001 /* initialize a new scaler context */
1002 sws_freeContext(ost->img_resample_ctx);
1003 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1004 ost->img_resample_ctx = sws_getContext(
1005 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1006 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1007 ist->st->codec->pix_fmt,
1008 ost->st->codec->width - (ost->padleft + ost->padright),
1009 ost->st->codec->height - (ost->padtop + ost->padbottom),
1010 ost->st->codec->pix_fmt,
1011 sws_flags, NULL, NULL, NULL);
1012 if (ost->img_resample_ctx == NULL) {
1013 fprintf(stderr, "Cannot get resampling context\n");
1014 av_exit(1);
1015 }
1016 }
1017 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1018 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1019 }
1020
1021 if (ost->video_pad) {
1022 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
1023 enc->height, enc->width, enc->pix_fmt,
1024 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
1025 }
1026
1027 /* duplicates frame if needed */
1028 for(i=0;i<nb_frames;i++) {
1029 AVPacket pkt;
1030 av_init_packet(&pkt);
1031 pkt.stream_index= ost->index;
1032
1033 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1034 /* raw pictures are written as AVPicture structure to
1035 avoid any copies. We support temorarily the older
1036 method. */
1037 AVFrame* old_frame = enc->coded_frame;
1038 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1039 pkt.data= (uint8_t *)final_picture;
1040 pkt.size= sizeof(AVPicture);
1041 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1042 pkt.flags |= PKT_FLAG_KEY;
1043
1044 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1045 enc->coded_frame = old_frame;
1046 } else {
1047 AVFrame big_picture;
1048
1049 big_picture= *final_picture;
1050 /* better than nothing: use input picture interlaced
1051 settings */
1052 big_picture.interlaced_frame = in_picture->interlaced_frame;
1053 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1054 if(top_field_first == -1)
1055 big_picture.top_field_first = in_picture->top_field_first;
1056 else
1057 big_picture.top_field_first = top_field_first;
1058 }
1059
1060 /* handles sameq here. This is not correct because it may
1061 not be a global option */
1062 if (same_quality) {
1063 big_picture.quality = ist->st->quality;
1064 }else
1065 big_picture.quality = ost->st->quality;
1066 if(!me_threshold)
1067 big_picture.pict_type = 0;
1068 // big_picture.pts = AV_NOPTS_VALUE;
1069 big_picture.pts= ost->sync_opts;
1070 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1071 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1072 ret = avcodec_encode_video(enc,
1073 bit_buffer, bit_buffer_size,
1074 &big_picture);
1075 if (ret < 0) {
1076 fprintf(stderr, "Video encoding failed\n");
1077 av_exit(1);
1078 }
1079
1080 if(ret>0){
1081 pkt.data= bit_buffer;
1082 pkt.size= ret;
1083 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1084 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1085 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1086 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1087 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1088
1089 if(enc->coded_frame->key_frame)
1090 pkt.flags |= PKT_FLAG_KEY;
1091 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1092 *frame_size = ret;
1093 video_size += ret;
1094 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1095 // enc->frame_number-1, ret, enc->pict_type);
1096 /* if two pass, output log */
1097 if (ost->logfile && enc->stats_out) {
1098 fprintf(ost->logfile, "%s", enc->stats_out);
1099 }
1100 }
1101 }
1102 ost->sync_opts++;
1103 ost->frame_number++;
1104 }
1105 }
1106
1107 static double psnr(double d){
1108 return -10.0*log(d)/log(10.0);
1109 }
1110
1111 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1112 int frame_size)
1113 {
1114 AVCodecContext *enc;
1115 int frame_number;
1116 double ti1, bitrate, avg_bitrate;
1117
1118 /* this is executed just the first time do_video_stats is called */
1119 if (!vstats_file) {
1120 vstats_file = fopen(vstats_filename, "w");
1121 if (!vstats_file) {
1122 perror("fopen");
1123 av_exit(1);
1124 }
1125 }
1126
1127 enc = ost->st->codec;
1128 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1129 frame_number = ost->frame_number;
1130 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1131 if (enc->flags&CODEC_FLAG_PSNR)
1132 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1133
1134 fprintf(vstats_file,"f_size= %6d ", frame_size);
1135 /* compute pts value */
1136 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1137 if (ti1 < 0.01)
1138 ti1 = 0.01;
1139
1140 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1141 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1142 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1143 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1144 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1145 }
1146 }
1147
1148 static void print_report(AVFormatContext **output_files,
1149 AVOutputStream **ost_table, int nb_ostreams,
1150 int is_last_report)
1151 {
1152 char buf[1024];
1153 AVOutputStream *ost;
1154 AVFormatContext *oc;
1155 int64_t total_size;
1156 AVCodecContext *enc;
1157 int frame_number, vid, i;
1158 double bitrate, ti1, pts;
1159 static int64_t last_time = -1;
1160 static int qp_histogram[52];
1161
1162 if (!is_last_report) {
1163 int64_t cur_time;
1164 /* display the report every 0.5 seconds */
1165 cur_time = av_gettime();
1166 if (last_time == -1) {
1167 last_time = cur_time;
1168 return;
1169 }
1170 if ((cur_time - last_time) < 500000)
1171 return;
1172 last_time = cur_time;
1173 }
1174
1175
1176 oc = output_files[0];
1177
1178 total_size = url_fsize(oc->pb);
1179 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1180 total_size= url_ftell(oc->pb);
1181
1182 buf[0] = '\0';
1183 ti1 = 1e10;
1184 vid = 0;
1185 for(i=0;i<nb_ostreams;i++) {
1186 ost = ost_table[i];
1187 enc = ost->st->codec;
1188 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1189 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1190 !ost->st->stream_copy ?
1191 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1192 }
1193 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1194 float t = (av_gettime()-timer_start) / 1000000.0;
1195
1196 frame_number = ost->frame_number;
1197 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1198 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1199 !ost->st->stream_copy ?
1200 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1201 if(is_last_report)
1202 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1203 if(qp_hist){
1204 int j;
1205 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1206 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1207 qp_histogram[qp]++;
1208 for(j=0; j<32; j++)
1209 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1210 }
1211 if (enc->flags&CODEC_FLAG_PSNR){
1212 int j;
1213 double error, error_sum=0;
1214 double scale, scale_sum=0;
1215 char type[3]= {'Y','U','V'};
1216 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1217 for(j=0; j<3; j++){
1218 if(is_last_report){
1219 error= enc->error[j];
1220 scale= enc->width*enc->height*255.0*255.0*frame_number;
1221 }else{
1222 error= enc->coded_frame->error[j];
1223 scale= enc->width*enc->height*255.0*255.0;
1224 }
1225 if(j) scale/=4;
1226 error_sum += error;
1227 scale_sum += scale;
1228 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1229 }
1230 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1231 }
1232 vid = 1;
1233 }
1234 /* compute min output value */
1235 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1236 if ((pts < ti1) && (pts > 0))
1237 ti1 = pts;
1238 }
1239 if (ti1 < 0.01)
1240 ti1 = 0.01;
1241
1242 if (verbose || is_last_report) {
1243 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1244
1245 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1246 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1247 (double)total_size / 1024, ti1, bitrate);
1248
1249 if (nb_frames_dup || nb_frames_drop)
1250 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1251 nb_frames_dup, nb_frames_drop);
1252
1253 if (verbose >= 0)
1254 fprintf(stderr, "%s \r", buf);
1255
1256 fflush(stderr);
1257 }
1258
1259 if (is_last_report && verbose >= 0){
1260 int64_t raw= audio_size + video_size + extra_size;
1261 fprintf(stderr, "\n");
1262 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1263 video_size/1024.0,
1264 audio_size/1024.0,
1265 extra_size/1024.0,
1266 100.0*(total_size - raw)/raw
1267 );
1268 }
1269 }
1270
1271 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1272 static int output_packet(AVInputStream *ist, int ist_index,
1273 AVOutputStream **ost_table, int nb_ostreams,
1274 const AVPacket *pkt)
1275 {
1276 AVFormatContext *os;
1277 AVOutputStream *ost;
1278 int ret, i;
1279 int got_picture;
1280 AVFrame picture;
1281 void *buffer_to_free;
1282 static unsigned int samples_size= 0;
1283 AVSubtitle subtitle, *subtitle_to_free;
1284 int got_subtitle;
1285 AVPacket avpkt;
1286 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1287
1288 if(ist->next_pts == AV_NOPTS_VALUE)
1289 ist->next_pts= ist->pts;
1290
1291 if (pkt == NULL) {
1292 /* EOF handling */
1293 av_init_packet(&avpkt);
1294 avpkt.data = NULL;
1295 avpkt.size = 0;
1296 goto handle_eof;
1297 } else {
1298 avpkt = *pkt;
1299 }
1300
1301 if(pkt->dts != AV_NOPTS_VALUE)
1302 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1303
1304 //while we have more to decode or while the decoder did output something on EOF
1305 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1306 uint8_t *data_buf, *decoded_data_buf;
1307 int data_size, decoded_data_size;
1308 handle_eof:
1309 ist->pts= ist->next_pts;
1310
1311 if(avpkt.size && avpkt.size != pkt->size &&
1312 !(ist->st->codec->codec->capabilities & CODEC_CAP_SUBFRAMES) && verbose>0)
1313 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1314
1315 /* decode the packet if needed */
1316 decoded_data_buf = NULL; /* fail safe */
1317 decoded_data_size= 0;
1318 data_buf = avpkt.data;
1319 data_size = avpkt.size;
1320 subtitle_to_free = NULL;
1321 if (ist->decoding_needed) {
1322 switch(ist->st->codec->codec_type) {
1323 case CODEC_TYPE_AUDIO:{
1324 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1325 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1326 av_free(samples);
1327 samples= av_malloc(samples_size);
1328 }
1329 decoded_data_size= samples_size;
1330 /* XXX: could avoid copy if PCM 16 bits with same
1331 endianness as CPU */
1332 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1333 &avpkt);
1334 if (ret < 0)
1335 goto fail_decode;
1336 avpkt.data += ret;
1337 avpkt.size -= ret;
1338 data_size = ret;
1339 /* Some bug in mpeg audio decoder gives */
1340 /* decoded_data_size < 0, it seems they are overflows */
1341 if (decoded_data_size <= 0) {
1342 /* no audio frame */
1343 continue;
1344 }
1345 decoded_data_buf = (uint8_t *)samples;
1346 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1347 (ist->st->codec->sample_rate * ist->st->codec->channels);
1348 break;}
1349 case CODEC_TYPE_VIDEO:
1350 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1351 /* XXX: allocate picture correctly */
1352 avcodec_get_frame_defaults(&picture);
1353
1354 ret = avcodec_decode_video2(ist->st->codec,
1355 &picture, &got_picture, &avpkt);
1356 ist->st->quality= picture.quality;
1357 if (ret < 0)
1358 goto fail_decode;
1359 if (!got_picture) {
1360 /* no picture yet */
1361 goto discard_packet;
1362 }
1363 if (ist->st->codec->time_base.num != 0) {
1364 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1365 ist->next_pts += ((int64_t)AV_TIME_BASE *
1366 ist->st->codec->time_base.num * ticks) /
1367 ist->st->codec->time_base.den;
1368 }
1369 avpkt.size = 0;
1370 break;
1371 case CODEC_TYPE_SUBTITLE:
1372 ret = avcodec_decode_subtitle2(ist->st->codec,
1373 &subtitle, &got_subtitle, &avpkt);
1374 if (ret < 0)
1375 goto fail_decode;
1376 if (!got_subtitle) {
1377 goto discard_packet;
1378 }
1379 subtitle_to_free = &subtitle;
1380 avpkt.size = 0;
1381 break;
1382 default:
1383 goto fail_decode;
1384 }
1385 } else {
1386 switch(ist->st->codec->codec_type) {
1387 case CODEC_TYPE_AUDIO:
1388 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1389 ist->st->codec->sample_rate;
1390 break;
1391 case CODEC_TYPE_VIDEO:
1392 if (ist->st->codec->time_base.num != 0) {
1393 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1394 ist->next_pts += ((int64_t)AV_TIME_BASE *
1395 ist->st->codec->time_base.num * ticks) /
1396 ist->st->codec->time_base.den;
1397 }
1398 break;
1399 }
1400 ret = avpkt.size;
1401 avpkt.size = 0;
1402 }
1403
1404 buffer_to_free = NULL;
1405 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1406 pre_process_video_frame(ist, (AVPicture *)&picture,
1407 &buffer_to_free);
1408 }
1409
1410 // preprocess audio (volume)
1411 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1412 if (audio_volume != 256) {
1413 short *volp;
1414 volp = samples;
1415 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1416 int v = ((*volp) * audio_volume + 128) >> 8;
1417 if (v < -32768) v = -32768;
1418 if (v > 32767) v = 32767;
1419 *volp++ = v;
1420 }
1421 }
1422 }
1423
1424 /* frame rate emulation */
1425 if (rate_emu) {
1426 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1427 int64_t now = av_gettime() - ist->start;
1428 if (pts > now)
1429 usleep(pts - now);
1430 }
1431
1432 /* if output time reached then transcode raw format,
1433 encode packets and output them */
1434 if (start_time == 0 || ist->pts >= start_time)
1435 for(i=0;i<nb_ostreams;i++) {
1436 int frame_size;
1437
1438 ost = ost_table[i];
1439 if (ost->source_index == ist_index) {
1440 os = output_files[ost->file_index];
1441
1442 /* set the input output pts pairs */
1443 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1444
1445 if (ost->encoding_needed) {
1446 assert(ist->decoding_needed);
1447 switch(ost->st->codec->codec_type) {
1448 case CODEC_TYPE_AUDIO:
1449 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1450 break;
1451 case CODEC_TYPE_VIDEO:
1452 do_video_out(os, ost, ist, &picture, &frame_size);
1453 if (vstats_filename && frame_size)
1454 do_video_stats(os, ost, frame_size);
1455 break;
1456 case CODEC_TYPE_SUBTITLE:
1457 do_subtitle_out(os, ost, ist, &subtitle,
1458 pkt->pts);
1459 break;
1460 default:
1461 abort();
1462 }
1463 } else {
1464 AVFrame avframe; //FIXME/XXX remove this
1465 AVPacket opkt;
1466 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1467
1468 av_init_packet(&opkt);
1469
1470 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1471 continue;
1472
1473 /* no reencoding needed : output the packet directly */
1474 /* force the input stream PTS */
1475
1476 avcodec_get_frame_defaults(&avframe);
1477 ost->st->codec->coded_frame= &avframe;
1478 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1479
1480 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1481 audio_size += data_size;
1482 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1483 video_size += data_size;
1484 ost->sync_opts++;
1485 }
1486
1487 opkt.stream_index= ost->index;
1488 if(pkt->pts != AV_NOPTS_VALUE)
1489 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1490 else
1491 opkt.pts= AV_NOPTS_VALUE;
1492
1493 if (pkt->dts == AV_NOPTS_VALUE)
1494 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1495 else
1496 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1497 opkt.dts -= ost_tb_start_time;
1498
1499 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1500 opkt.flags= pkt->flags;
1501
1502 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1503 if(ost->st->codec->codec_id != CODEC_ID_H264) {
1504 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1505 opkt.destruct= av_destruct_packet;
1506 } else {
1507 opkt.data = data_buf;
1508 opkt.size = data_size;
1509 }
1510
1511 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1512 ost->st->codec->frame_number++;
1513 ost->frame_number++;
1514 av_free_packet(&opkt);
1515 }
1516 }
1517 }
1518 av_free(buffer_to_free);
1519 /* XXX: allocate the subtitles in the codec ? */
1520 if (subtitle_to_free) {
1521 if (subtitle_to_free->rects != NULL) {
1522 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1523 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1524 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1525 av_freep(&subtitle_to_free->rects[i]);
1526 }
1527 av_freep(&subtitle_to_free->rects);
1528 }
1529 subtitle_to_free->num_rects = 0;
1530 subtitle_to_free = NULL;
1531 }
1532 }
1533 discard_packet:
1534 if (pkt == NULL) {
1535 /* EOF handling */
1536
1537 for(i=0;i<nb_ostreams;i++) {
1538 ost = ost_table[i];
1539 if (ost->source_index == ist_index) {
1540 AVCodecContext *enc= ost->st->codec;
1541 os = output_files[ost->file_index];
1542
1543 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1544 continue;
1545 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1546 continue;
1547
1548 if (ost->encoding_needed) {
1549 for(;;) {
1550 AVPacket pkt;
1551 int fifo_bytes;
1552 av_init_packet(&pkt);
1553 pkt.stream_index= ost->index;
1554
1555 switch(ost->st->codec->codec_type) {
1556 case CODEC_TYPE_AUDIO:
1557 fifo_bytes = av_fifo_size(ost->fifo);
1558 ret = 0;
1559 /* encode any samples remaining in fifo */
1560 if (fifo_bytes > 0) {
1561 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1562 int fs_tmp = enc->frame_size;
1563
1564 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1565 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1566 enc->frame_size = fifo_bytes / (osize * enc->channels);
1567 } else { /* pad */
1568 int frame_bytes = enc->frame_size*osize*enc->channels;
1569 if (samples_size < frame_bytes)
1570 av_exit(1);
1571 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1572 }
1573
1574 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1575 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1576 ost->st->time_base.num, enc->sample_rate);
1577 enc->frame_size = fs_tmp;
1578 }
1579 if(ret <= 0) {
1580 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1581 }
1582 if (ret < 0) {
1583 fprintf(stderr, "Audio encoding failed\n");
1584 av_exit(1);
1585 }
1586 audio_size += ret;
1587 pkt.flags |= PKT_FLAG_KEY;
1588 break;
1589 case CODEC_TYPE_VIDEO:
1590 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1591 if (ret < 0) {
1592 fprintf(stderr, "Video encoding failed\n");
1593 av_exit(1);
1594 }
1595 video_size += ret;
1596 if(enc->coded_frame && enc->coded_frame->key_frame)
1597 pkt.flags |= PKT_FLAG_KEY;
1598 if (ost->logfile && enc->stats_out) {
1599 fprintf(ost->logfile, "%s", enc->stats_out);
1600 }
1601 break;
1602 default:
1603 ret=-1;
1604 }
1605
1606 if(ret<=0)
1607 break;
1608 pkt.data= bit_buffer;
1609 pkt.size= ret;
1610 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1611 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1612 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1613 }
1614 }
1615 }
1616 }
1617 }
1618
1619 return 0;
1620 fail_decode:
1621 return -1;
1622 }
1623
1624 static void print_sdp(AVFormatContext **avc, int n)
1625 {
1626 char sdp[2048];
1627
1628 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1629 printf("SDP:\n%s\n", sdp);
1630 fflush(stdout);
1631 }
1632
1633 static int stream_index_from_inputs(AVFormatContext **input_files,
1634 int nb_input_files,
1635 AVInputFile *file_table,
1636 AVInputStream **ist_table,
1637 enum CodecType type,
1638 int programid)
1639 {
1640 int p, q, z;
1641 for(z=0; z<nb_input_files; z++) {
1642 AVFormatContext *ic = input_files[z];
1643 for(p=0; p<ic->nb_programs; p++) {
1644 AVProgram *program = ic->programs[p];
1645 if(program->id != programid)
1646 continue;
1647 for(q=0; q<program->nb_stream_indexes; q++) {
1648 int sidx = program->stream_index[q];
1649 int ris = file_table[z].ist_index + sidx;
1650 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1651 return ris;
1652 }
1653 }
1654 }
1655
1656 return -1;
1657 }
1658
1659 /*
1660 * The following code is the main loop of the file converter
1661 */
1662 static int av_encode(AVFormatContext **output_files,
1663 int nb_output_files,
1664 AVFormatContext **input_files,
1665 int nb_input_files,
1666 AVStreamMap *stream_maps, int nb_stream_maps)
1667 {
1668 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1669 AVFormatContext *is, *os;
1670 AVCodecContext *codec, *icodec;
1671 AVOutputStream *ost, **ost_table = NULL;
1672 AVInputStream *ist, **ist_table = NULL;
1673 AVInputFile *file_table;
1674 char error[1024];
1675 int key;
1676 int want_sdp = 1;
1677 uint8_t no_packet[MAX_FILES]={0};
1678 int no_packet_count=0;
1679
1680 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1681 if (!file_table)
1682 goto fail;
1683
1684 /* input stream init */
1685 j = 0;
1686 for(i=0;i<nb_input_files;i++) {
1687 is = input_files[i];
1688 file_table[i].ist_index = j;
1689 file_table[i].nb_streams = is->nb_streams;
1690 j += is->nb_streams;
1691 }
1692 nb_istreams = j;
1693
1694 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1695 if (!ist_table)
1696 goto fail;
1697
1698 for(i=0;i<nb_istreams;i++) {
1699 ist = av_mallocz(sizeof(AVInputStream));
1700 if (!ist)
1701 goto fail;
1702 ist_table[i] = ist;
1703 }
1704 j = 0;
1705 for(i=0;i<nb_input_files;i++) {
1706 is = input_files[i];
1707 for(k=0;k<is->nb_streams;k++) {
1708 ist = ist_table[j++];
1709 ist->st = is->streams[k];
1710 ist->file_index = i;
1711 ist->index = k;
1712 ist->discard = 1; /* the stream is discarded by default
1713 (changed later) */
1714
1715 if (rate_emu) {
1716 ist->start = av_gettime();
1717 }
1718 }
1719 }
1720
1721 /* output stream init */
1722 nb_ostreams = 0;
1723 for(i=0;i<nb_output_files;i++) {
1724 os = output_files[i];
1725 if (!os->nb_streams) {
1726 dump_format(output_files[i], i, output_files[i]->filename, 1);
1727 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1728 av_exit(1);
1729 }
1730 nb_ostreams += os->nb_streams;
1731 }
1732 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1733 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1734 av_exit(1);
1735 }
1736
1737 /* Sanity check the mapping args -- do the input files & streams exist? */
1738 for(i=0;i<nb_stream_maps;i++) {
1739 int fi = stream_maps[i].file_index;
1740 int si = stream_maps[i].stream_index;
1741
1742 if (fi < 0 || fi > nb_input_files - 1 ||
1743 si < 0 || si > file_table[fi].nb_streams - 1) {
1744 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1745 av_exit(1);
1746 }
1747 fi = stream_maps[i].sync_file_index;
1748 si = stream_maps[i].sync_stream_index;
1749 if (fi < 0 || fi > nb_input_files - 1 ||
1750 si < 0 || si > file_table[fi].nb_streams - 1) {
1751 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1752 av_exit(1);
1753 }
1754 }
1755
1756 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1757 if (!ost_table)
1758 goto fail;
1759 for(i=0;i<nb_ostreams;i++) {
1760 ost = av_mallocz(sizeof(AVOutputStream));
1761 if (!ost)
1762 goto fail;
1763 ost_table[i] = ost;
1764 }
1765
1766 n = 0;
1767 for(k=0;k<nb_output_files;k++) {
1768 os = output_files[k];
1769 for(i=0;i<os->nb_streams;i++,n++) {
1770 int found;
1771 ost = ost_table[n];
1772 ost->file_index = k;
1773 ost->index = i;
1774 ost->st = os->streams[i];
1775 if (nb_stream_maps > 0) {
1776 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1777 stream_maps[n].stream_index;
1778
1779 /* Sanity check that the stream types match */
1780 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1781 int i= ost->file_index;
1782 dump_format(output_files[i], i, output_files[i]->filename, 1);
1783 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1784 stream_maps[n].file_index, stream_maps[n].stream_index,
1785 ost->file_index, ost->index);
1786 av_exit(1);
1787 }
1788
1789 } else {
1790 if(opt_programid) {
1791 found = 0;
1792 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1793 if(j != -1) {
1794 ost->source_index = j;
1795 found = 1;
1796 }
1797 } else {
1798 /* get corresponding input stream index : we select the first one with the right type */
1799 found = 0;
1800 for(j=0;j<nb_istreams;j++) {
1801 ist = ist_table[j];
1802 if (ist->discard &&
1803 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1804 ost->source_index = j;
1805 found = 1;
1806 break;
1807 }
1808 }
1809 }
1810
1811 if (!found) {
1812 if(! opt_programid) {
1813 /* try again and reuse existing stream */
1814 for(j=0;j<nb_istreams;j++) {
1815 ist = ist_table[j];
1816 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1817 ost->source_index = j;
1818 found = 1;
1819 }
1820 }
1821 }
1822 if (!found) {
1823 int i= ost->file_index;
1824 dump_format(output_files[i], i, output_files[i]->filename, 1);
1825 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1826 ost->file_index, ost->index);
1827 av_exit(1);
1828 }
1829 }
1830 }
1831 ist = ist_table[ost->source_index];
1832 ist->discard = 0;
1833 ost->sync_ist = (nb_stream_maps > 0) ?
1834 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1835 stream_maps[n].sync_stream_index] : ist;
1836 }
1837 }
1838
1839 /* for each output stream, we compute the right encoding parameters */
1840 for(i=0;i<nb_ostreams;i++) {
1841 AVMetadataTag *lang;
1842 ost = ost_table[i];
1843 os = output_files[ost->file_index];
1844 ist = ist_table[ost->source_index];
1845
1846 codec = ost->st->codec;
1847 icodec = ist->st->codec;
1848
1849 if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
1850 && !av_metadata_get(ost->st->metadata, "language", NULL, 0))
1851 av_metadata_set(&ost->st->metadata, "language", lang->value);
1852
1853 ost->st->disposition = ist->st->disposition;
1854 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1855 codec->chroma_sample_location = icodec->chroma_sample_location;
1856
1857 if (ost->st->stream_copy) {
1858 /* if stream_copy is selected, no need to decode or encode */
1859 codec->codec_id = icodec->codec_id;
1860 codec->codec_type = icodec->codec_type;
1861
1862 if(!codec->codec_tag){
1863 if( !os->oformat->codec_tag
1864 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1865 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1866 codec->codec_tag = icodec->codec_tag;
1867 }
1868
1869 codec->bit_rate = icodec->bit_rate;
1870 codec->extradata= icodec->extradata;
1871 codec->extradata_size= icodec->extradata_size;
1872 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
1873 codec->time_base = icodec->time_base;
1874 codec->time_base.num *= icodec->ticks_per_frame;
1875 }else
1876 codec->time_base = ist->st->time_base;
1877 switch(codec->codec_type) {
1878 case CODEC_TYPE_AUDIO:
1879 if(audio_volume != 256) {
1880 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1881 av_exit(1);
1882 }
1883 codec->channel_layout = icodec->channel_layout;
1884 codec->sample_rate = icodec->sample_rate;
1885 codec->channels = icodec->channels;
1886 codec->frame_size = icodec->frame_size;
1887 codec->block_align= icodec->block_align;
1888 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1889 codec->block_align= 0;
1890 if(codec->codec_id == CODEC_ID_AC3)
1891 codec->block_align= 0;
1892 break;
1893 case CODEC_TYPE_VIDEO:
1894 codec->pix_fmt = icodec->pix_fmt;
1895 codec->width = icodec->width;
1896 codec->height = icodec->height;
1897 codec->has_b_frames = icodec->has_b_frames;
1898 break;
1899 case CODEC_TYPE_SUBTITLE:
1900 codec->width = icodec->width;
1901 codec->height = icodec->height;
1902 break;
1903 default:
1904 abort();
1905 }
1906 } else {
1907 switch(codec->codec_type) {
1908 case CODEC_TYPE_AUDIO:
1909 ost->fifo= av_fifo_alloc(1024);
1910 if(!ost->fifo)
1911 goto fail;
1912 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1913 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1914 icodec->request_channels = codec->channels;
1915 ist->decoding_needed = 1;
1916 ost->encoding_needed = 1;
1917 break;
1918 case CODEC_TYPE_VIDEO:
1919 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1920 fprintf(stderr, "Video pixel format is unknown, stream cannot be decoded\n");
1921 av_exit(1);
1922 }
1923 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1924 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1925 ost->video_resample = ((codec->width != icodec->width -
1926 (frame_leftBand + frame_rightBand) +
1927 (frame_padleft + frame_padright)) ||
1928 (codec->height != icodec->height -
1929 (frame_topBand + frame_bottomBand) +
1930 (frame_padtop + frame_padbottom)) ||
1931 (codec->pix_fmt != icodec->pix_fmt));
1932 if (ost->video_crop) {
1933 ost->topBand = ost->original_topBand = frame_topBand;
1934 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
1935 ost->leftBand = ost->original_leftBand = frame_leftBand;
1936 ost->rightBand = ost->original_rightBand = frame_rightBand;
1937 }
1938 if (ost->video_pad) {
1939 ost->padtop = frame_padtop;
1940 ost->padleft = frame_padleft;
1941 ost->padbottom = frame_padbottom;
1942 ost->padright = frame_padright;
1943 if (!ost->video_resample) {
1944 avcodec_get_frame_defaults(&ost->pict_tmp);
1945 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1946 codec->width, codec->height))
1947 goto fail;
1948 }
1949 }
1950 if (ost->video_resample) {
1951 avcodec_get_frame_defaults(&ost->pict_tmp);
1952 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1953 codec->width, codec->height)) {
1954 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1955 av_exit(1);
1956 }
1957 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1958 ost->img_resample_ctx = sws_getContext(
1959 icodec->width - (frame_leftBand + frame_rightBand),
1960 icodec->height - (frame_topBand + frame_bottomBand),
1961 icodec->pix_fmt,
1962 codec->width - (frame_padleft + frame_padright),
1963 codec->height - (frame_padtop + frame_padbottom),
1964 codec->pix_fmt,
1965 sws_flags, NULL, NULL, NULL);
1966 if (ost->img_resample_ctx == NULL) {
1967 fprintf(stderr, "Cannot get resampling context\n");
1968 av_exit(1);
1969 }
1970
1971 ost->original_height = icodec->height;
1972 ost->original_width = icodec->width;
1973
1974 codec->bits_per_raw_sample= 0;
1975 }
1976 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1977 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
1978 ost->resample_pix_fmt= icodec->pix_fmt;
1979 ost->encoding_needed = 1;
1980 ist->decoding_needed = 1;
1981 break;
1982 case CODEC_TYPE_SUBTITLE:
1983 ost->encoding_needed = 1;
1984 ist->decoding_needed = 1;
1985 break;
1986 default:
1987 abort();
1988 break;
1989 }
1990 /* two pass mode */
1991 if (ost->encoding_needed &&
1992 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1993 char logfilename[1024];
1994 FILE *f;
1995 int size;
1996 char *logbuffer;
1997
1998 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1999 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2000 i);
2001 if (codec->flags & CODEC_FLAG_PASS1) {
2002 f = fopen(logfilename, "w");
2003 if (!f) {
2004 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2005 av_exit(1);
2006 }
2007 ost->logfile = f;
2008 } else {
2009 /* read the log file */
2010 f = fopen(logfilename, "r");
2011 if (!f) {
2012 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
2013 av_exit(1);
2014 }
2015 fseek(f, 0, SEEK_END);
2016 size = ftell(f);
2017 fseek(f, 0, SEEK_SET);
2018 logbuffer = av_malloc(size + 1);
2019 if (!logbuffer) {
2020 fprintf(stderr, "Could not allocate log buffer\n");
2021 av_exit(1);
2022 }
2023 size = fread(logbuffer, 1, size, f);
2024 fclose(f);
2025 logbuffer[size] = '\0';
2026 codec->stats_in = logbuffer;
2027 }
2028 }
2029 }
2030 if(codec->codec_type == CODEC_TYPE_VIDEO){
2031 int size= codec->width * codec->height;
2032 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2033 }
2034 }
2035
2036 if (!bit_buffer)
2037 bit_buffer = av_malloc(bit_buffer_size);
2038 if (!bit_buffer) {
2039 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2040 bit_buffer_size);
2041 ret = AVERROR(ENOMEM);
2042 goto fail;
2043 }
2044
2045 /* open each encoder */
2046 for(i=0;i<nb_ostreams;i++) {
2047 ost = ost_table[i];
2048 if (ost->encoding_needed) {
2049 AVCodec *codec = output_codecs[i];
2050 if (!codec)
2051 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2052 if (!codec) {
2053 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2054 ost->st->codec->codec_id, ost->file_index, ost->index);
2055 ret = AVERROR(EINVAL);
2056 goto dump_format;
2057 }
2058 if (avcodec_open(ost->st->codec, codec) < 0) {
2059 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2060 ost->file_index, ost->index);
2061 ret = AVERROR(EINVAL);
2062 goto dump_format;
2063 }
2064 extra_size += ost->st->codec->extradata_size;
2065 }
2066 }
2067
2068 /* open each decoder */
2069 for(i=0;i<nb_istreams;i++) {
2070 ist = ist_table[i];
2071 if (ist->decoding_needed) {
2072 AVCodec *codec = input_codecs[i];
2073 if (!codec)
2074 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2075 if (!codec) {
2076 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2077 ist->st->codec->codec_id, ist->file_index, ist->index);
2078 ret = AVERROR(EINVAL);
2079 goto dump_format;
2080 }
2081 if (avcodec_open(ist->st->codec, codec) < 0) {
2082 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2083 ist->file_index, ist->index);
2084 ret = AVERROR(EINVAL);
2085 goto dump_format;
2086 }
2087 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
2088 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2089 }
2090 }
2091
2092 /* init pts */
2093 for(i=0;i<nb_istreams;i++) {
2094 ist = ist_table[i];
2095 ist->pts = 0;
2096 ist->next_pts = AV_NOPTS_VALUE;
2097 ist->is_start = 1;
2098 }
2099
2100 /* set meta data information from input file if required */
2101 for (i=0;i<nb_meta_data_maps;i++) {
2102 AVFormatContext *out_file;
2103 AVFormatContext *in_file;
2104 AVMetadataTag *mtag;
2105
2106 int out_file_index = meta_data_maps[i].out_file;
2107 int in_file_index = meta_data_maps[i].in_file;
2108 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2109 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2110 out_file_index, out_file_index, in_file_index);
2111 ret = AVERROR(EINVAL);
2112 goto dump_format;
2113 }
2114 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2115 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2116 in_file_index, out_file_index, in_file_index);
2117 ret = AVERROR(EINVAL);
2118 goto dump_format;
2119 }
2120
2121 out_file = output_files[out_file_index];
2122 in_file = input_files[in_file_index];
2123
2124
2125 mtag=NULL;
2126 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2127 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
2128 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2129 in_file->iformat->metadata_conv);
2130 }
2131
2132 /* open files and write file headers */
2133 for(i=0;i<nb_output_files;i++) {
2134 os = output_files[i];
2135 if (av_write_header(os) < 0) {
2136 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2137 ret = AVERROR(EINVAL);
2138 goto dump_format;
2139 }
2140 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2141 want_sdp = 0;
2142 }
2143 }
2144
2145 dump_format:
2146 /* dump the file output parameters - cannot be done before in case
2147 of stream copy */
2148 for(i=0;i<nb_output_files;i++) {
2149 dump_format(output_files[i], i, output_files[i]->filename, 1);
2150 }
2151
2152 /* dump the stream mapping */
2153 if (verbose >= 0) {
2154 fprintf(stderr, "Stream mapping:\n");
2155 for(i=0;i<nb_ostreams;i++) {
2156 ost = ost_table[i];
2157 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2158 ist_table[ost->source_index]->file_index,
2159 ist_table[ost->source_index]->index,
2160 ost->file_index,
2161 ost->index);
2162 if (ost->sync_ist != ist_table[ost->source_index])
2163 fprintf(stderr, " [sync #%d.%d]",
2164 ost->sync_ist->file_index,
2165 ost->sync_ist->index);
2166 fprintf(stderr, "\n");
2167 }
2168 }
2169
2170 if (ret) {
2171 fprintf(stderr, "%s\n", error);
2172 goto fail;
2173 }
2174
2175 if (want_sdp) {
2176 print_sdp(output_files, nb_output_files);
2177 }
2178
2179 if (!using_stdin && verbose >= 0) {
2180 fprintf(stderr, "Press [q] to stop encoding\n");
2181 url_set_interrupt_cb(decode_interrupt_cb);
2182 }
2183 term_init();
2184
2185 timer_start = av_gettime();
2186
2187 for(; received_sigterm == 0;) {
2188 int file_index, ist_index;
2189 AVPacket pkt;
2190 double ipts_min;
2191 double opts_min;
2192
2193 redo:
2194 ipts_min= 1e100;
2195 opts_min= 1e100;
2196 /* if 'q' pressed, exits */
2197 if (!using_stdin) {
2198 if (q_pressed)
2199 break;
2200 /* read_key() returns 0 on EOF */
2201 key = read_key();
2202 if (key == 'q')
2203 break;
2204 }
2205
2206 /* select the stream that we must read now by looking at the
2207 smallest output pts */
2208 file_index = -1;
2209 for(i=0;i<nb_ostreams;i++) {
2210 double ipts, opts;
2211 ost = ost_table[i];
2212 os = output_files[ost->file_index];
2213 ist = ist_table[ost->source_index];
2214 if(no_packet[ist->file_index])
2215 continue;
2216 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2217 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2218 else
2219 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2220 ipts = (double)ist->pts;
2221 if (!file_table[ist->file_index].eof_reached){
2222 if(ipts < ipts_min) {
2223 ipts_min = ipts;
2224 if(input_sync ) file_index = ist->file_index;
2225 }
2226 if(opts < opts_min) {
2227 opts_min = opts;
2228 if(!input_sync) file_index = ist->file_index;
2229 }
2230 }
2231 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2232 file_index= -1;
2233 break;
2234 }
2235 }
2236 /* if none, if is finished */
2237 if (file_index < 0) {
2238 if(no_packet_count){
2239 no_packet_count=0;
2240 memset(no_packet, 0, sizeof(no_packet));
2241 usleep(10000);
2242 continue;
2243 }
2244 break;
2245 }
2246
2247 /* finish if recording time exhausted */
2248 if (opts_min >= (recording_time / 1000000.0))
2249 break;
2250
2251 /* finish if limit size exhausted */
2252 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2253 break;
2254
2255 /* read a frame from it and output it in the fifo */
2256 is = input_files[file_index];
2257 ret= av_read_frame(is, &pkt);
2258 if(ret == AVERROR(EAGAIN)){
2259 no_packet[file_index]=1;
2260 no_packet_count++;
2261 continue;
2262 }
2263 if (ret < 0) {
2264 file_table[file_index].eof_reached = 1;
2265 if (opt_shortest)
2266 break;
2267 else
2268 continue;
2269 }
2270
2271 no_packet_count=0;
2272 memset(no_packet, 0, sizeof(no_packet));
2273
2274 if (do_pkt_dump) {
2275 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2276 }
2277 /* the following test is needed in case new streams appear
2278 dynamically in stream : we ignore them */
2279 if (pkt.stream_index >= file_table[file_index].nb_streams)
2280 goto discard_packet;
2281 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2282 ist = ist_table[ist_index];
2283 if (ist->discard)
2284 goto discard_packet;
2285
2286 if (pkt.dts != AV_NOPTS_VALUE)
2287 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2288 if (pkt.pts != AV_NOPTS_VALUE)
2289 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2290
2291 if(input_files_ts_scale[file_index][pkt.stream_index]){
2292 if(pkt.pts != AV_NOPTS_VALUE)
2293 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2294 if(pkt.dts != AV_NOPTS_VALUE)
2295 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2296 }
2297
2298 // 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);
2299 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2300 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2301 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2302 int64_t delta= pkt_dts - ist->next_pts;
2303 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2304 input_files_ts_offset[ist->file_index]-= delta;
2305 if (verbose > 2)
2306 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2307 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2308 if(pkt.pts != AV_NOPTS_VALUE)
2309 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2310 }
2311 }
2312
2313 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2314 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2315
2316 if (verbose >= 0)
2317 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2318 ist->file_index, ist->index);
2319 if (exit_on_error)
2320 av_exit(1);
2321 av_free_packet(&pkt);
2322 goto redo;
2323 }
2324
2325 discard_packet:
2326 av_free_packet(&pkt);
2327
2328 /* dump report by using the output first video and audio streams */
2329 print_report(output_files, ost_table, nb_ostreams, 0);
2330 }
2331
2332 /* at the end of stream, we must flush the decoder buffers */
2333 for(i=0;i<nb_istreams;i++) {
2334 ist = ist_table[i];
2335 if (ist->decoding_needed) {
2336 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2337 }
2338 }
2339
2340 term_exit();
2341
2342 /* write the trailer if needed and close file */
2343 for(i=0;i<nb_output_files;i++) {
2344 os = output_files[i];
2345 av_write_trailer(os);
2346 }
2347
2348 /* dump report by using the first video and audio streams */
2349 print_report(output_files, ost_table, nb_ostreams, 1);
2350
2351 /* close each encoder */
2352 for(i=0;i<nb_ostreams;i++) {
2353 ost = ost_table[i];
2354 if (ost->encoding_needed) {
2355 av_freep(&ost->st->codec->stats_in);
2356 avcodec_close(ost->st->codec);
2357 }
2358 }
2359
2360 /* close each decoder */
2361 for(i=0;i<nb_istreams;i++) {
2362 ist = ist_table[i];
2363 if (ist->decoding_needed) {
2364 avcodec_close(ist->st->codec);
2365 }
2366 }
2367
2368 /* finished ! */
2369 ret = 0;
2370
2371 fail:
2372 av_freep(&bit_buffer);
2373 av_free(file_table);
2374
2375 if (ist_table) {
2376 for(i=0;i<nb_istreams;i++) {
2377 ist = ist_table[i];
2378 av_free(ist);
2379 }
2380 av_free(ist_table);
2381 }
2382 if (ost_table) {
2383 for(i=0;i<nb_ostreams;i++) {
2384 ost = ost_table[i];
2385 if (ost) {
2386 if (ost->logfile) {
2387 fclose(ost->logfile);
2388 ost->logfile = NULL;
2389 }
2390 av_fifo_free(ost->fifo); /* works even if fifo is not
2391 initialized but set to zero */
2392 av_free(ost->pict_tmp.data[0]);
2393 if (ost->video_resample)
2394 sws_freeContext(ost->img_resample_ctx);
2395 if (ost->resample)
2396 audio_resample_close(ost->resample);
2397 if (ost->reformat_ctx)
2398 av_audio_convert_free(ost->reformat_ctx);
2399 av_free(ost);
2400 }
2401 }
2402 av_free(ost_table);
2403 }
2404 return ret;
2405 }
2406
2407 static void opt_format(const char *arg)
2408 {
2409 /* compatibility stuff for pgmyuv */
2410 if (!strcmp(arg, "pgmyuv")) {
2411 pgmyuv_compatibility_hack=1;
2412 // opt_image_format(arg);
2413 arg = "image2";
2414 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2415 }
2416
2417 last_asked_format = arg;
2418 }
2419
2420 static void opt_video_rc_override_string(const char *arg)
2421 {
2422 video_rc_override_string = arg;
2423 }
2424
2425 static int opt_me_threshold(const char *opt, const char *arg)
2426 {
2427 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2428 return 0;
2429 }
2430
2431 static int opt_verbose(const char *opt, const char *arg)
2432 {
2433 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2434 return 0;
2435 }
2436
2437 static int opt_frame_rate(const char *opt, const char *arg)
2438 {
2439 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2440 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2441 av_exit(1);
2442 }
2443 return 0;
2444 }
2445
2446 static int opt_bitrate(const char *opt, const char *arg)
2447 {
2448 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2449
2450 opt_default(opt, arg);
2451
2452 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2453 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2454
2455 return 0;
2456 }
2457
2458 static void opt_frame_crop_top(const char *arg)
2459 {
2460 frame_topBand = atoi(arg);
2461 if (frame_topBand < 0) {
2462 fprintf(stderr, "Incorrect top crop size\n");
2463 av_exit(1);
2464 }
2465 if ((frame_topBand) >= frame_height){
2466 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2467 av_exit(1);
2468 }
2469 frame_height -= frame_topBand;
2470 }
2471
2472 static void opt_frame_crop_bottom(const char *arg)
2473 {
2474 frame_bottomBand = atoi(arg);
2475 if (frame_bottomBand < 0) {
2476 fprintf(stderr, "Incorrect bottom crop size\n");
2477 av_exit(1);
2478 }
2479 if ((frame_bottomBand) >= frame_height){
2480 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2481 av_exit(1);
2482 }
2483 frame_height -= frame_bottomBand;
2484 }
2485
2486 static void opt_frame_crop_left(const char *arg)
2487 {
2488 frame_leftBand = atoi(arg);
2489 if (frame_leftBand < 0) {
2490 fprintf(stderr, "Incorrect left crop size\n");
2491 av_exit(1);
2492 }
2493 if ((frame_leftBand) >= frame_width){
2494 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2495 av_exit(1);
2496 }
2497 frame_width -= frame_leftBand;
2498 }
2499
2500 static void opt_frame_crop_right(const char *arg)
2501 {
2502 frame_rightBand = atoi(arg);
2503 if (frame_rightBand < 0) {
2504 fprintf(stderr, "Incorrect right crop size\n");
2505 av_exit(1);
2506 }
2507 if ((frame_rightBand) >= frame_width){
2508 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2509 av_exit(1);
2510 }
2511 frame_width -= frame_rightBand;
2512 }
2513
2514 static void opt_frame_size(const char *arg)
2515 {
2516 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2517 fprintf(stderr, "Incorrect frame size\n");
2518 av_exit(1);
2519 }
2520 }
2521
2522 static void opt_pad_color(const char *arg) {
2523 /* Input is expected to be six hex digits similar to
2524 how colors are expressed in html tags (but without the #) */
2525 int rgb = strtol(arg, NULL, 16);
2526 int r,g,b;
2527
2528 r = (rgb >> 16);
2529 g = ((rgb >> 8) & 255);
2530 b = (rgb & 255);
2531
2532 padcolor[0] = RGB_TO_Y(r,g,b);
2533 padcolor[1] = RGB_TO_U(r,g,b,0);
2534 padcolor[2] = RGB_TO_V(r,g,b,0);
2535 }
2536
2537 static void opt_frame_pad_top(const char *arg)
2538 {
2539 frame_padtop = atoi(arg);
2540 if (frame_padtop < 0) {
2541 fprintf(stderr, "Incorrect top pad size\n");
2542 av_exit(1);
2543 }
2544 }
2545
2546 static void opt_frame_pad_bottom(const char *arg)
2547 {
2548 frame_padbottom = atoi(arg);
2549 if (frame_padbottom < 0) {
2550 fprintf(stderr, "Incorrect bottom pad size\n");
2551 av_exit(1);
2552 }
2553 }
2554
2555
2556 static void opt_frame_pad_left(const char *arg)
2557 {
2558 frame_padleft = atoi(arg);
2559 if (frame_padleft < 0) {
2560 fprintf(stderr, "Incorrect left pad size\n");
2561 av_exit(1);
2562 }
2563 }
2564
2565
2566 static void opt_frame_pad_right(const char *arg)
2567 {
2568 frame_padright = atoi(arg);
2569 if (frame_padright < 0) {
2570 fprintf(stderr, "Incorrect right pad size\n");
2571 av_exit(1);
2572 }
2573 }
2574
2575 static void opt_frame_pix_fmt(const char *arg)
2576 {
2577 if (strcmp(arg, "list")) {
2578 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2579 if (frame_pix_fmt == PIX_FMT_NONE) {
2580 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2581 av_exit(1);
2582 }
2583 } else {
2584 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2585 av_exit(0);
2586 }
2587 }
2588
2589 static void opt_frame_aspect_ratio(const char *arg)
2590 {
2591 int x = 0, y = 0;
2592 double ar = 0;
2593 const char *p;
2594 char *end;
2595
2596 p = strchr(arg, ':');
2597 if (p) {
2598 x = strtol(arg, &end, 10);
2599 if (end == p)
2600 y = strtol(end+1, &end, 10);
2601 if (x > 0 && y > 0)
2602 ar = (double)x / (double)y;
2603 } else
2604 ar = strtod(arg, NULL);
2605
2606 if (!ar) {
2607 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2608 av_exit(1);
2609 }
2610 frame_aspect_ratio = ar;
2611 }
2612
2613 static int opt_metadata(const char *opt, const char *arg)
2614 {
2615 char *mid= strchr(arg, '=');
2616
2617 if(!mid){
2618 fprintf(stderr, "Missing =\n");
2619 av_exit(1);
2620 }
2621 *mid++= 0;
2622
2623 metadata_count++;
2624 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2625 metadata[metadata_count-1].key = av_strdup(arg);
2626 metadata[metadata_count-1].value= av_strdup(mid);
2627
2628 return 0;
2629 }
2630
2631 static void opt_qscale(const char *arg)
2632 {
2633 video_qscale = atof(arg);
2634 if (video_qscale <= 0 ||
2635 video_qscale > 255) {
2636 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2637 av_exit(1);
2638 }
2639 }
2640
2641 static void opt_top_field_first(const char *arg)
2642 {
2643 top_field_first= atoi(arg);
2644 }
2645
2646 static int opt_thread_count(const char *opt, const char *arg)
2647 {
2648 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2649 #if !HAVE_THREADS
2650 if (verbose >= 0)
2651 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2652 #endif
2653 return 0;
2654 }
2655
2656 static void opt_audio_sample_fmt(const char *arg)
2657 {
2658 if (strcmp(arg, "list"))
2659 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2660 else {
2661 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2662 av_exit(0);
2663 }
2664 }
2665
2666 static int opt_audio_rate(const char *opt, const char *arg)
2667 {
2668 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2669 return 0;
2670 }
2671
2672 static int opt_audio_channels(const char *opt, const char *arg)
2673 {
2674 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2675 return 0;
2676 }
2677
2678 static void opt_video_channel(const char *arg)
2679 {
2680 video_channel = strtol(arg, NULL, 0);
2681 }
2682
2683 static void opt_video_standard(const char *arg)
2684 {
2685 video_standard = av_strdup(arg);
2686 }
2687
2688 static void opt_codec(int *pstream_copy, char **pcodec_name,
2689 int codec_type, const char *arg)
2690 {
2691 av_freep(pcodec_name);
2692 if (!strcmp(arg, "copy")) {
2693 *pstream_copy = 1;
2694 } else {
2695 *pcodec_name = av_strdup(arg);
2696 }
2697 }
2698
2699 static void opt_audio_codec(const char *arg)
2700 {
2701 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2702 }
2703
2704 static void opt_audio_tag(const char *arg)
2705 {
2706 char *tail;
2707 audio_codec_tag= strtol(arg, &tail, 0);
2708
2709 if(!tail || *tail)
2710 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2711 }
2712
2713 static void opt_video_tag(const char *arg)
2714 {
2715 char *tail;
2716 video_codec_tag= strtol(arg, &tail, 0);
2717
2718 if(!tail || *tail)
2719 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2720 }
2721
2722 static void opt_video_codec(const char *arg)
2723 {
2724 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2725 }
2726
2727 static void opt_subtitle_codec(const char *arg)
2728 {
2729 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2730 }
2731
2732 static void opt_subtitle_tag(const char *arg)
2733 {
2734 char *tail;
2735 subtitle_codec_tag= strtol(arg, &tail, 0);
2736
2737 if(!tail || *tail)
2738 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2739 }
2740
2741 static void opt_map(const char *arg)
2742 {
2743 AVStreamMap *m;
2744 char *p;
2745
2746 m = &stream_maps[nb_stream_maps++];
2747
2748 m->file_index = strtol(arg, &p, 0);
2749 if (*p)
2750 p++;
2751
2752 m->stream_index = strtol(p, &p, 0);
2753 if (*p) {
2754 p++;
2755 m->sync_file_index = strtol(p, &p, 0);
2756 if (*p)
2757 p++;
2758 m->sync_stream_index = strtol(p, &p, 0);
2759 } else {
2760 m->sync_file_index = m->file_index;
2761 m->sync_stream_index = m->stream_index;
2762 }
2763 }
2764
2765 static void opt_map_meta_data(const char *arg)
2766 {
2767 AVMetaDataMap *m;
2768 char *p;
2769
2770 m = &meta_data_maps[nb_meta_data_maps++];
2771
2772 m->out_file = strtol(arg, &p, 0);
2773 if (*p)
2774 p++;
2775
2776 m->in_file = strtol(p, &p, 0);
2777 }
2778
2779 static void opt_input_ts_scale(const char *arg)
2780 {
2781 unsigned int stream;
2782 double scale;
2783 char *p;
2784
2785 stream = strtol(arg, &p, 0);
2786 if (*p)
2787 p++;
2788 scale= strtod(p, &p);
2789
2790 if(stream >= MAX_STREAMS)
2791 av_exit(1);
2792
2793 input_files_ts_scale[nb_input_files][stream]= scale;
2794 }
2795
2796 static int opt_recording_time(const char *opt, const char *arg)
2797 {
2798 recording_time = parse_time_or_die(opt, arg, 1);
2799 return 0;
2800 }
2801
2802 static int opt_start_time(const char *opt, const char *arg)
2803 {
2804 start_time = parse_time_or_die(opt, arg, 1);
2805 return 0;
2806 }
2807
2808 static int opt_rec_timestamp(const char *opt, const char *arg)
2809 {
2810 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2811 return 0;
2812 }
2813
2814 static int opt_input_ts_offset(const char *opt, const char *arg)
2815 {
2816 input_ts_offset = parse_time_or_die(opt, arg, 1);
2817 return 0;
2818 }
2819
2820 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2821 {
2822 const char *codec_string = encoder ? "encoder" : "decoder";
2823 AVCodec *codec;
2824
2825 if(!name)
2826 return CODEC_ID_NONE;
2827 codec = encoder ?
2828 avcodec_find_encoder_by_name(name) :
2829 avcodec_find_decoder_by_name(name);
2830 if(!codec) {
2831 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2832 av_exit(1);
2833 }
2834 if(codec->type != type) {
2835 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2836 av_exit(1);
2837 }
2838 return codec->id;
2839 }
2840
2841 static void opt_input_file(const char *filename)
2842 {
2843 AVFormatContext *ic;
2844 AVFormatParameters params, *ap = &params;
2845 AVInputFormat *file_iformat = NULL;
2846 int err, i, ret, rfps, rfps_base;
2847 int64_t timestamp;
2848
2849 if (last_asked_format) {
2850 file_iformat = av_find_input_format(last_asked_format);
2851 last_asked_format = NULL;
2852 }
2853
2854 if (!strcmp(filename, "-"))
2855 filename = "pipe:";
2856
2857 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2858 !strcmp(filename, "/dev/stdin");
2859
2860 /* get default parameters from command line */
2861 ic = avformat_alloc_context();
2862 if (!ic) {
2863 print_error(filename, AVERROR(ENOMEM));
2864 av_exit(1);
2865 }
2866
2867 memset(ap, 0, sizeof(*ap));
2868 ap->prealloced_context = 1;
2869 ap->sample_rate = audio_sample_rate;
2870 ap->channels = audio_channels;
2871 ap->time_base.den = frame_rate.num;
2872 ap->time_base.num = frame_rate.den;
2873 ap->width = frame_width + frame_padleft + frame_padright;
2874 ap->height = frame_height + frame_padtop + frame_padbottom;
2875 ap->pix_fmt = frame_pix_fmt;
2876 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2877 ap->channel = video_channel;
2878 ap->standard = video_standard;
2879 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2880 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2881 if(pgmyuv_compatibility_hack)
2882 ap->video_codec_id= CODEC_ID_PGMYUV;
2883
2884 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2885
2886 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2887 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2888 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2889 ic->flags |= AVFMT_FLAG_NONBLOCK;
2890
2891 /* open the input file with generic libav function */
2892 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2893 if (err < 0) {
2894 print_error(filename, err);
2895 av_exit(1);
2896 }
2897 if(opt_programid) {
2898 int i;
2899 for(i=0; i<ic->nb_programs; i++)
2900 if(ic->programs[i]->id != opt_programid)
2901 ic->programs[i]->discard = AVDISCARD_ALL;
2902 }
2903
2904 ic->loop_input = loop_input;
2905
2906 /* If not enough info to get the stream parameters, we decode the
2907 first frames to get it. (used in mpeg case for example) */
2908 ret = av_find_stream_info(ic);
2909 if (ret < 0 && verbose >= 0) {
2910 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2911 av_exit(1);
2912 }
2913
2914 timestamp = start_time;
2915 /* add the stream start time */
2916 if (ic->start_time != AV_NOPTS_VALUE)
2917 timestamp += ic->start_time;
2918
2919 /* if seeking requested, we execute it */
2920 if (start_time != 0) {
2921 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2922 if (ret < 0) {
2923 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2924 filename, (double)timestamp / AV_TIME_BASE);
2925 }
2926 /* reset seek info */
2927 start_time = 0;
2928 }
2929
2930 /* update the current parameters so that they match the one of the input stream */
2931 for(i=0;i<ic->nb_streams;i++) {
2932 AVStream *st = ic->streams[i];
2933 AVCodecContext *enc = st->codec;
2934 if(thread_count>1)
2935 avcodec_thread_init(enc, thread_count);
2936 switch(enc->codec_type) {
2937 case CODEC_TYPE_AUDIO:
2938 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2939 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2940 channel_layout = enc->channel_layout;
2941 audio_channels = enc->channels;
2942 audio_sample_rate = enc->sample_rate;
2943 audio_sample_fmt = enc->sample_fmt;
2944 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2945 if(audio_disable)
2946 st->discard= AVDISCARD_ALL;
2947 break;
2948 case CODEC_TYPE_VIDEO:
2949 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2950 frame_height = enc->height;
2951 frame_width = enc->width;
2952 if(ic->streams[i]->sample_aspect_ratio.num)
2953 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2954 else
2955 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2956 frame_aspect_ratio *= (float) enc->width / enc->height;
2957 frame_pix_fmt = enc->pix_fmt;
2958 rfps = ic->streams[i]->r_frame_rate.num;
2959 rfps_base = ic->streams[i]->r_frame_rate.den;
2960 if(enc->lowres) {
2961 enc->flags |= CODEC_FLAG_EMU_EDGE;
2962 frame_height >>= enc->lowres;
2963 frame_width >>= enc->lowres;
2964 }
2965 if(me_threshold)
2966 enc->debug |= FF_DEBUG_MV;
2967
2968 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2969
2970 if (verbose >= 0)
2971 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2972 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2973
2974 (float)rfps / rfps_base, rfps, rfps_base);
2975 }
2976 /* update the current frame rate to match the stream frame rate */
2977 frame_rate.num = rfps;
2978 frame_rate.den = rfps_base;
2979
2980 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2981 if(video_disable)
2982 st->discard= AVDISCARD_ALL;
2983 else if(video_discard)
2984 st->discard= video_discard;
2985 break;
2986 case CODEC_TYPE_DATA:
2987 break;
2988 case CODEC_TYPE_SUBTITLE:
2989 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2990 if(subtitle_disable)
2991 st->discard = AVDISCARD_ALL;
2992 break;
2993 case CODEC_TYPE_ATTACHMENT:
2994 case CODEC_TYPE_UNKNOWN:
2995 nb_icodecs++;
2996 break;
2997 default:
2998 abort();
2999 }
3000 }
3001
3002 input_files[nb_input_files] = ic;
3003 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3004 /* dump the file content */
3005 if (verbose >= 0)
3006 dump_format(ic, nb_input_files, filename, 0);
3007
3008 nb_input_files++;
3009
3010 video_channel = 0;
3011
3012 av_freep(&video_codec_name);
3013 av_freep(&audio_codec_name);
3014 av_freep(&subtitle_codec_name);
3015 }
3016
3017 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3018 int *has_subtitle_ptr)
3019 {
3020 int has_video, has_audio, has_subtitle, i, j;
3021 AVFormatContext *ic;
3022
3023 has_video = 0;
3024 has_audio = 0;
3025 has_subtitle = 0;
3026 for(j=0;j<nb_input_files;j++) {
3027 ic = input_files[j];
3028 for(i=0;i<ic->nb_streams;i++) {
3029 AVCodecContext *enc = ic->streams[i]->codec;
3030 switch(enc->codec_type) {
3031 case CODEC_TYPE_AUDIO:
3032 has_audio = 1;
3033 break;
3034 case CODEC_TYPE_VIDEO:
3035 has_video = 1;
3036 break;
3037 case CODEC_TYPE_SUBTITLE:
3038 has_subtitle = 1;
3039 break;
3040 case CODEC_TYPE_DATA:
3041 case CODEC_TYPE_ATTACHMENT:
3042 case CODEC_TYPE_UNKNOWN:
3043 break;
3044 default:
3045 abort();
3046 }
3047 }
3048 }
3049 *has_video_ptr = has_video;
3050 *has_audio_ptr = has_audio;
3051 *has_subtitle_ptr = has_subtitle;
3052 }
3053
3054 static void new_video_stream(AVFormatContext *oc)
3055 {
3056 AVStream *st;
3057 AVCodecContext *video_enc;
3058 enum CodecID codec_id;
3059
3060 st = av_new_stream(oc, oc->nb_streams);
3061 if (!st) {
3062 fprintf(stderr, "Could not alloc stream\n");
3063 av_exit(1);
3064 }
3065 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3066 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3067 video_bitstream_filters= NULL;
3068
3069 if(thread_count>1)
3070 avcodec_thread_init(st->codec, thread_count);
3071
3072 video_enc = st->codec;
3073
3074 if(video_codec_tag)
3075 video_enc->codec_tag= video_codec_tag;
3076
3077 if( (video_global_header&1)
3078 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3079 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3080 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3081 }
3082 if(video_global_header&2){
3083 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3084 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3085 }
3086
3087 if (video_stream_copy) {
3088 st->stream_copy = 1;
3089 video_enc->codec_type = CODEC_TYPE_VIDEO;
3090 video_enc->sample_aspect_ratio =
3091 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3092 } else {
3093 const char *p;
3094 int i;
3095 AVCodec *codec;
3096 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3097
3098 if (video_codec_name) {
3099 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3100 codec = avcodec_find_encoder_by_name(video_codec_name);
3101 output_codecs[nb_ocodecs] = codec;
3102 } else {
3103 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3104 codec = avcodec_find_encoder(codec_id);
3105 }
3106
3107 video_enc->codec_id = codec_id;
3108
3109 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3110
3111 if (codec && codec->supported_framerates && !force_fps)
3112 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3113 video_enc->time_base.den = fps.num;
3114 video_enc->time_base.num = fps.den;
3115
3116 video_enc->width = frame_width + frame_padright + frame_padleft;
3117 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3118 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3119 video_enc->pix_fmt = frame_pix_fmt;
3120 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3121
3122 if(codec && codec->pix_fmts){
3123 const enum PixelFormat *p= codec->pix_fmts;
3124 for(; *p!=-1; p++){
3125 if(*p == video_enc->pix_fmt)
3126 break;
3127 }
3128 if(*p == -1)
3129 video_enc->pix_fmt = codec->pix_fmts[0];
3130 }
3131
3132 if (intra_only)
3133 video_enc->gop_size = 0;
3134 if (video_qscale || same_quality) {
3135 video_enc->flags |= CODEC_FLAG_QSCALE;
3136 video_enc->global_quality=
3137 st->quality = FF_QP2LAMBDA * video_qscale;
3138 }
3139
3140 if(intra_matrix)
3141 video_enc->intra_matrix = intra_matrix;
3142 if(inter_matrix)
3143 video_enc->inter_matrix = inter_matrix;
3144
3145 p= video_rc_override_string;
3146 for(i=0; p; i++){
3147 int start, end, q;
3148 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3149 if(e!=3){
3150 fprintf(stderr, "error parsing rc_override\n");
3151 av_exit(1);
3152 }
3153 video_enc->rc_override=
3154 av_realloc(video_enc->rc_override,
3155 sizeof(RcOverride)*(i+1));
3156 video_enc->rc_override[i].start_frame= start;
3157 video_enc->rc_override[i].end_frame = end;
3158 if(q>0){
3159 video_enc->rc_override[i].qscale= q;
3160 video_enc->rc_override[i].quality_factor= 1.0;
3161 }
3162 else{
3163 video_enc->rc_override[i].qscale= 0;
3164 video_enc->rc_override[i].quality_factor= -q/100.0;
3165 }
3166 p= strchr(p, '/');
3167 if(p) p++;
3168 }
3169 video_enc->rc_override_count=i;
3170 if (!video_enc->rc_initial_buffer_occupancy)
3171 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3172 video_enc->me_threshold= me_threshold;
3173 video_enc->intra_dc_precision= intra_dc_precision - 8;
3174
3175 if (do_psnr)
3176 video_enc->flags|= CODEC_FLAG_PSNR;
3177
3178 /* two pass mode */
3179 if (do_pass) {
3180 if (do_pass == 1) {
3181 video_enc->flags |= CODEC_FLAG_PASS1;
3182 } else {
3183 video_enc->flags |= CODEC_FLAG_PASS2;
3184 }
3185 }
3186 }
3187 nb_ocodecs++;
3188 if (video_language) {
3189 av_metadata_set(&st->metadata, "language", video_language);
3190 av_freep(&video_language);
3191 }
3192