31580684fe8fd912afe87e83507452235acd318d
[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 /*
357 register a function to be called at normal program termination
358 */
359 atexit(term_exit);
360 #if CONFIG_BEOS_NETSERVER
361 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
362 #endif
363 }
364
365 /* read a key without blocking */
366 static int read_key(void)
367 {
368 #if HAVE_TERMIOS_H
369 int n = 1;
370 unsigned char ch;
371 #if !CONFIG_BEOS_NETSERVER
372 struct timeval tv;
373 fd_set rfds;
374
375 FD_ZERO(&rfds);
376 FD_SET(0, &rfds);
377 tv.tv_sec = 0;
378 tv.tv_usec = 0;
379 n = select(1, &rfds, NULL, NULL, &tv);
380 #endif
381 if (n > 0) {
382 n = read(0, &ch, 1);
383 if (n == 1)
384 return ch;
385
386 return n;
387 }
388 #elif HAVE_CONIO_H
389 if(kbhit())
390 return(getch());
391 #endif
392 return -1;
393 }
394
395 static int decode_interrupt_cb(void)
396 {
397 return q_pressed || (q_pressed = read_key() == 'q');
398 }
399
400 static int av_exit(int ret)
401 {
402 int i;
403
404 /* close files */
405 for(i=0;i<nb_output_files;i++) {
406 /* maybe av_close_output_file ??? */
407 AVFormatContext *s = output_files[i];
408 int j;
409 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
410 url_fclose(s->pb);
411 for(j=0;j<s->nb_streams;j++) {
412 av_metadata_free(&s->streams[j]->metadata);
413 av_free(s->streams[j]->codec);
414 av_free(s->streams[j]);
415 }
416 for(j=0;j<s->nb_programs;j++) {
417 av_metadata_free(&s->programs[j]->metadata);
418 }
419 for(j=0;j<s->nb_chapters;j++) {
420 av_metadata_free(&s->chapters[j]->metadata);
421 }
422 av_metadata_free(&s->metadata);
423 av_free(s);
424 }
425 for(i=0;i<nb_input_files;i++)
426 av_close_input_file(input_files[i]);
427
428 av_free(intra_matrix);
429 av_free(inter_matrix);
430
431 if (vstats_file)
432 fclose(vstats_file);
433 av_free(vstats_filename);
434
435 av_free(opt_names);
436
437 av_free(video_codec_name);
438 av_free(audio_codec_name);
439 av_free(subtitle_codec_name);
440
441 av_free(video_standard);
442
443 #if CONFIG_POWERPC_PERF
444 void powerpc_display_perf_report(void);
445 powerpc_display_perf_report();
446 #endif /* CONFIG_POWERPC_PERF */
447
448 for (i=0;i<CODEC_TYPE_NB;i++)
449 av_free(avcodec_opts[i]);
450 av_free(avformat_opts);
451 av_free(sws_opts);
452 av_free(audio_buf);
453 av_free(audio_out);
454 allocated_audio_buf_size= allocated_audio_out_size= 0;
455 av_free(samples);
456
457 if (received_sigterm) {
458 fprintf(stderr,
459 "Received signal %d: terminating.\n",
460 (int) received_sigterm);
461 exit (255);
462 }
463
464 exit(ret); /* not all OS-es handle main() return value */
465 return ret;
466 }
467
468 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
469 {
470 int i, err;
471 AVFormatContext *ic;
472 int nopts = 0;
473
474 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
475 if (err < 0)
476 return err;
477 /* copy stream format */
478 s->nb_streams = ic->nb_streams;
479 for(i=0;i<ic->nb_streams;i++) {
480 AVStream *st;
481
482 // FIXME: a more elegant solution is needed
483 st = av_mallocz(sizeof(AVStream));
484 memcpy(st, ic->streams[i], sizeof(AVStream));
485 st->codec = avcodec_alloc_context();
486 if (!st->codec) {
487 print_error(filename, AVERROR(ENOMEM));
488 av_exit(1);
489 }
490 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
491 s->streams[i] = st;
492
493 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
494 st->stream_copy = 1;
495 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
496 st->stream_copy = 1;
497
498 if(!st->codec->thread_count)
499 st->codec->thread_count = 1;
500 if(st->codec->thread_count>1)
501 avcodec_thread_init(st->codec, st->codec->thread_count);
502
503 if(st->codec->flags & CODEC_FLAG_BITEXACT)
504 nopts = 1;
505 }
506
507 if (!nopts)
508 s->timestamp = av_gettime();
509
510 av_close_input_file(ic);
511 return 0;
512 }
513
514 static double
515 get_sync_ipts(const AVOutputStream *ost)
516 {
517 const AVInputStream *ist = ost->sync_ist;
518 return (double)(ist->pts - start_time)/AV_TIME_BASE;
519 }
520
521 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
522 int ret;
523
524 while(bsfc){
525 AVPacket new_pkt= *pkt;
526 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
527 &new_pkt.data, &new_pkt.size,
528 pkt->data, pkt->size,
529 pkt->flags & PKT_FLAG_KEY);
530 if(a>0){
531 av_free_packet(pkt);
532 new_pkt.destruct= av_destruct_packet;
533 } else if(a<0){
534 fprintf(stderr, "%s failed for stream %d, codec %s",
535 bsfc->filter->name, pkt->stream_index,
536 avctx->codec ? avctx->codec->name : "copy");
537 print_error("", a);
538 if (exit_on_error)
539 av_exit(1);
540 }
541 *pkt= new_pkt;
542
543 bsfc= bsfc->next;
544 }
545
546 ret= av_interleaved_write_frame(s, pkt);
547 if(ret < 0){
548 print_error("av_interleaved_write_frame()", ret);
549 av_exit(1);
550 }
551 }
552
553 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
554
555 static void do_audio_out(AVFormatContext *s,
556 AVOutputStream *ost,
557 AVInputStream *ist,
558 unsigned char *buf, int size)
559 {
560 uint8_t *buftmp;
561 int64_t audio_out_size, audio_buf_size;
562
563 int size_out, frame_bytes, ret;
564 AVCodecContext *enc= ost->st->codec;
565 AVCodecContext *dec= ist->st->codec;
566 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
567 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
568 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
569
570 audio_buf_size= (size + isize*dec->channels - 1) / (isize*dec->channels);
571 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
572 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
573 audio_buf_size*= osize*enc->channels;
574
575 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
576 if(coded_bps > 8*osize)
577 audio_out_size= audio_out_size * coded_bps / (8*osize);
578 audio_out_size += FF_MIN_BUFFER_SIZE;
579
580 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
581 fprintf(stderr, "Buffer sizes too large\n");
582 av_exit(1);
583 }
584
585 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
586 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
587 if (!audio_buf || !audio_out){
588 fprintf(stderr, "Out of memory in do_audio_out\n");
589 av_exit(1);
590 }
591
592 if (enc->channels != dec->channels)
593 ost->audio_resample = 1;
594
595 if (ost->audio_resample && !ost->resample) {
596 if (dec->sample_fmt != SAMPLE_FMT_S16)
597 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
598 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
599 enc->sample_rate, dec->sample_rate,
600 enc->sample_fmt, dec->sample_fmt,
601 16, 10, 0, 0.8);
602 if (!ost->resample) {
603 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
604 dec->channels, dec->sample_rate,
605 enc->channels, enc->sample_rate);
606 av_exit(1);
607 }
608 }
609
610 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
611 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
612 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
613 if (ost->reformat_ctx)
614 av_audio_convert_free(ost->reformat_ctx);
615 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
616 dec->sample_fmt, 1, NULL, 0);
617 if (!ost->reformat_ctx) {
618 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
619 avcodec_get_sample_fmt_name(dec->sample_fmt),
620 avcodec_get_sample_fmt_name(enc->sample_fmt));
621 av_exit(1);
622 }
623 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
624 }
625
626 if(audio_sync_method){
627 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
628 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
629 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
630 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
631
632 //FIXME resample delay
633 if(fabs(delta) > 50){
634 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
635 if(byte_delta < 0){
636 byte_delta= FFMAX(byte_delta, -size);
637 size += byte_delta;
638 buf -= byte_delta;
639 if(verbose > 2)
640 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
641 if(!size)
642 return;
643 ist->is_start=0;
644 }else{
645 static uint8_t *input_tmp= NULL;
646 input_tmp= av_realloc(input_tmp, byte_delta + size);
647
648 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
649 ist->is_start=0;
650 else
651 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
652
653 memset(input_tmp, 0, byte_delta);
654 memcpy(input_tmp + byte_delta, buf, size);
655 buf= input_tmp;
656 size += byte_delta;
657 if(verbose > 2)
658 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
659 }
660 }else if(audio_sync_method>1){
661 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
662 assert(ost->audio_resample);
663 if(verbose > 2)
664 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
665 // 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));
666 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
667 }
668 }
669 }else
670 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
671 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
672
673 if (ost->audio_resample) {
674 buftmp = audio_buf;
675 size_out = audio_resample(ost->resample,
676 (short *)buftmp, (short *)buf,
677 size / (ist->st->codec->channels * isize));
678 size_out = size_out * enc->channels * osize;
679 } else {
680 buftmp = buf;
681 size_out = size;
682 }
683
684 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
685 const void *ibuf[6]= {buftmp};
686 void *obuf[6]= {audio_buf};
687 int istride[6]= {isize};
688 int ostride[6]= {osize};
689 int len= size_out/istride[0];
690 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
691 printf("av_audio_convert() failed\n");
692 if (exit_on_error)
693 av_exit(1);
694 return;
695 }
696 buftmp = audio_buf;
697 size_out = len*osize;
698 }
699
700 /* now encode as many frames as possible */
701 if (enc->frame_size > 1) {
702 /* output resampled raw samples */
703 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
704 fprintf(stderr, "av_fifo_realloc2() failed\n");
705 av_exit(1);
706 }
707 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
708
709 frame_bytes = enc->frame_size * osize * enc->channels;
710
711 while (av_fifo_size(ost->fifo) >= frame_bytes) {
712 AVPacket pkt;
713 av_init_packet(&pkt);
714
715 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
716
717 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
718
719 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
720 (short *)audio_buf);
721 if (ret < 0) {
722 fprintf(stderr, "Audio encoding failed\n");
723 av_exit(1);
724 }
725 audio_size += ret;
726 pkt.stream_index= ost->index;
727 pkt.data= audio_out;
728 pkt.size= ret;
729 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
730 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
731 pkt.flags |= PKT_FLAG_KEY;
732 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
733
734 ost->sync_opts += enc->frame_size;
735 }
736 } else {
737 AVPacket pkt;
738 av_init_packet(&pkt);
739
740 ost->sync_opts += size_out / (osize * enc->channels);
741
742 /* output a pcm frame */
743 /* determine the size of the coded buffer */
744 size_out /= osize;
745 if (coded_bps)
746 size_out = size_out*coded_bps/8;
747
748 if(size_out > audio_out_size){
749 fprintf(stderr, "Internal error, buffer size too small\n");
750 av_exit(1);
751 }
752
753 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
754 ret = avcodec_encode_audio(enc, audio_out, size_out,
755 (short *)buftmp);
756 if (ret < 0) {
757 fprintf(stderr, "Audio encoding failed\n");
758 av_exit(1);
759 }
760 audio_size += ret;
761 pkt.stream_index= ost->index;
762 pkt.data= audio_out;
763 pkt.size= ret;
764 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
765 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
766 pkt.flags |= PKT_FLAG_KEY;
767 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
768 }
769 }
770
771 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
772 {
773 AVCodecContext *dec;
774 AVPicture *picture2;
775 AVPicture picture_tmp;
776 uint8_t *buf = 0;
777
778 dec = ist->st->codec;
779
780 /* deinterlace : must be done before any resize */
781 if (do_deinterlace) {
782 int size;
783
784 /* create temporary picture */
785 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
786 buf = av_malloc(size);
787 if (!buf)
788 return;
789
790 picture2 = &picture_tmp;
791 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
792
793 if(avpicture_deinterlace(picture2, picture,
794 dec->pix_fmt, dec->width, dec->height) < 0) {
795 /* if error, do not deinterlace */
796 fprintf(stderr, "Deinterlacing failed\n");
797 av_free(buf);
798 buf = NULL;
799 picture2 = picture;
800 }
801 } else {
802 picture2 = picture;
803 }
804
805 if (picture != picture2)
806 *picture = *picture2;
807 *bufp = buf;
808 }
809
810 /* we begin to correct av delay at this threshold */
811 #define AV_DELAY_MAX 0.100
812
813 static void do_subtitle_out(AVFormatContext *s,
814 AVOutputStream *ost,
815 AVInputStream *ist,
816 AVSubtitle *sub,
817 int64_t pts)
818 {
819 static uint8_t *subtitle_out = NULL;
820 int subtitle_out_max_size = 1024 * 1024;
821 int subtitle_out_size, nb, i;
822 AVCodecContext *enc;
823 AVPacket pkt;
824
825 if (pts == AV_NOPTS_VALUE) {
826 fprintf(stderr, "Subtitle packets must have a pts\n");
827 if (exit_on_error)
828 av_exit(1);
829 return;
830 }
831
832 enc = ost->st->codec;
833
834 if (!subtitle_out) {
835 subtitle_out = av_malloc(subtitle_out_max_size);
836 }
837
838 /* Note: DVB subtitle need one packet to draw them and one other
839 packet to clear them */
840 /* XXX: signal it in the codec context ? */
841 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
842 nb = 2;
843 else
844 nb = 1;
845
846 for(i = 0; i < nb; i++) {
847 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
848 // start_display_time is required to be 0
849 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
850 sub->end_display_time -= sub->start_display_time;
851 sub->start_display_time = 0;
852 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
853 subtitle_out_max_size, sub);
854 if (subtitle_out_size < 0) {
855 fprintf(stderr, "Subtitle encoding failed\n");
856 av_exit(1);
857 }
858
859 av_init_packet(&pkt);
860 pkt.stream_index = ost->index;
861 pkt.data = subtitle_out;
862 pkt.size = subtitle_out_size;
863 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
864 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
865 /* XXX: the pts correction is handled here. Maybe handling
866 it in the codec would be better */
867 if (i == 0)
868 pkt.pts += 90 * sub->start_display_time;
869 else
870 pkt.pts += 90 * sub->end_display_time;
871 }
872 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
873 }
874 }
875
876 static int bit_buffer_size= 1024*256;
877 static uint8_t *bit_buffer= NULL;
878
879 static void do_video_out(AVFormatContext *s,
880 AVOutputStream *ost,
881 AVInputStream *ist,
882 AVFrame *in_picture,
883 int *frame_size)
884 {
885 int nb_frames, i, ret;
886 int64_t topBand, bottomBand, leftBand, rightBand;
887 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
888 AVFrame picture_crop_temp, picture_pad_temp;
889 AVCodecContext *enc, *dec;
890
891 avcodec_get_frame_defaults(&picture_crop_temp);
892 avcodec_get_frame_defaults(&picture_pad_temp);
893
894 enc = ost->st->codec;
895 dec = ist->st->codec;
896
897 /* by default, we output a single frame */
898 nb_frames = 1;
899
900 *frame_size = 0;
901
902 if(video_sync_method){
903 double vdelta;
904 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
905 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
906 if (vdelta < -1.1)
907 nb_frames = 0;
908 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
909 if(vdelta<=-0.6){
910 nb_frames=0;
911 }else if(vdelta>0.6)
912 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
913 }else if (vdelta > 1.1)
914 nb_frames = lrintf(vdelta);
915 //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);
916 if (nb_frames == 0){
917 ++nb_frames_drop;
918 if (verbose>2)
919 fprintf(stderr, "*** drop!\n");
920 }else if (nb_frames > 1) {
921 nb_frames_dup += nb_frames - 1;
922 if (verbose>2)
923 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
924 }
925 }else
926 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
927
928 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
929 if (nb_frames <= 0)
930 return;
931
932 if (ost->video_crop) {
933 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
934 fprintf(stderr, "error cropping picture\n");
935 if (exit_on_error)
936 av_exit(1);
937 return;
938 }
939 formatted_picture = &picture_crop_temp;
940 } else {
941 formatted_picture = in_picture;
942 }
943
944 final_picture = formatted_picture;
945 padding_src = formatted_picture;
946 resampling_dst = &ost->pict_tmp;
947 if (ost->video_pad) {
948 final_picture = &ost->pict_tmp;
949 if (ost->video_resample) {
950 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
951 fprintf(stderr, "error padding picture\n");
952 if (exit_on_error)
953 av_exit(1);
954 return;
955 }
956 resampling_dst = &picture_pad_temp;
957 }
958 }
959
960 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
961 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
962 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
963
964 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));
965 if(!ost->video_resample)
966 av_exit(1);
967 }
968
969 if (ost->video_resample) {
970 padding_src = NULL;
971 final_picture = &ost->pict_tmp;
972 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
973 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
974 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
975
976 /* keep bands proportional to the frame size */
977 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
978 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
979 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
980 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
981
982 /* sanity check to ensure no bad band sizes sneak in */
983 assert(topBand <= INT_MAX && topBand >= 0);
984 assert(bottomBand <= INT_MAX && bottomBand >= 0);
985 assert(leftBand <= INT_MAX && leftBand >= 0);
986 assert(rightBand <= INT_MAX && rightBand >= 0);
987
988 ost->topBand = topBand;
989 ost->bottomBand = bottomBand;
990 ost->leftBand = leftBand;
991 ost->rightBand = rightBand;
992
993 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
994 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
995 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
996
997 /* initialize a new scaler context */
998 sws_freeContext(ost->img_resample_ctx);
999 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1000 ost->img_resample_ctx = sws_getContext(
1001 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1002 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1003 ist->st->codec->pix_fmt,
1004 ost->st->codec->width - (ost->padleft + ost->padright),
1005 ost->st->codec->height - (ost->padtop + ost->padbottom),
1006 ost->st->codec->pix_fmt,
1007 sws_flags, NULL, NULL, NULL);
1008 if (ost->img_resample_ctx == NULL) {
1009 fprintf(stderr, "Cannot get resampling context\n");
1010 av_exit(1);
1011 }
1012 }
1013 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1014 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1015 }
1016
1017 if (ost->video_pad) {
1018 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
1019 enc->height, enc->width, enc->pix_fmt,
1020 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
1021 }
1022
1023 /* duplicates frame if needed */
1024 for(i=0;i<nb_frames;i++) {
1025 AVPacket pkt;
1026 av_init_packet(&pkt);
1027 pkt.stream_index= ost->index;
1028
1029 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1030 /* raw pictures are written as AVPicture structure to
1031 avoid any copies. We support temorarily the older
1032 method. */
1033 AVFrame* old_frame = enc->coded_frame;
1034 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1035 pkt.data= (uint8_t *)final_picture;
1036 pkt.size= sizeof(AVPicture);
1037 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1038 pkt.flags |= PKT_FLAG_KEY;
1039
1040 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1041 enc->coded_frame = old_frame;
1042 } else {
1043 AVFrame big_picture;
1044
1045 big_picture= *final_picture;
1046 /* better than nothing: use input picture interlaced
1047 settings */
1048 big_picture.interlaced_frame = in_picture->interlaced_frame;
1049 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1050 if(top_field_first == -1)
1051 big_picture.top_field_first = in_picture->top_field_first;
1052 else
1053 big_picture.top_field_first = top_field_first;
1054 }
1055
1056 /* handles sameq here. This is not correct because it may
1057 not be a global option */
1058 if (same_quality) {
1059 big_picture.quality = ist->st->quality;
1060 }else
1061 big_picture.quality = ost->st->quality;
1062 if(!me_threshold)
1063 big_picture.pict_type = 0;
1064 // big_picture.pts = AV_NOPTS_VALUE;
1065 big_picture.pts= ost->sync_opts;
1066 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1067 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1068 ret = avcodec_encode_video(enc,
1069 bit_buffer, bit_buffer_size,
1070 &big_picture);
1071 if (ret < 0) {
1072 fprintf(stderr, "Video encoding failed\n");
1073 av_exit(1);
1074 }
1075
1076 if(ret>0){
1077 pkt.data= bit_buffer;
1078 pkt.size= ret;
1079 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1080 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1081 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1082 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1083 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1084
1085 if(enc->coded_frame->key_frame)
1086 pkt.flags |= PKT_FLAG_KEY;
1087 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1088 *frame_size = ret;
1089 video_size += ret;
1090 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1091 // enc->frame_number-1, ret, enc->pict_type);
1092 /* if two pass, output log */
1093 if (ost->logfile && enc->stats_out) {
1094 fprintf(ost->logfile, "%s", enc->stats_out);
1095 }
1096 }
1097 }
1098 ost->sync_opts++;
1099 ost->frame_number++;
1100 }
1101 }
1102
1103 static double psnr(double d){
1104 return -10.0*log(d)/log(10.0);
1105 }
1106
1107 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1108 int frame_size)
1109 {
1110 AVCodecContext *enc;
1111 int frame_number;
1112 double ti1, bitrate, avg_bitrate;
1113
1114 /* this is executed just the first time do_video_stats is called */
1115 if (!vstats_file) {
1116 vstats_file = fopen(vstats_filename, "w");
1117 if (!vstats_file) {
1118 perror("fopen");
1119 av_exit(1);
1120 }
1121 }
1122
1123 enc = ost->st->codec;
1124 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1125 frame_number = ost->frame_number;
1126 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1127 if (enc->flags&CODEC_FLAG_PSNR)
1128 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1129
1130 fprintf(vstats_file,"f_size= %6d ", frame_size);
1131 /* compute pts value */
1132 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1133 if (ti1 < 0.01)
1134 ti1 = 0.01;
1135
1136 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1137 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1138 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1139 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1140 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1141 }
1142 }
1143
1144 static void print_report(AVFormatContext **output_files,
1145 AVOutputStream **ost_table, int nb_ostreams,
1146 int is_last_report)
1147 {
1148 char buf[1024];
1149 AVOutputStream *ost;
1150 AVFormatContext *oc;
1151 int64_t total_size;
1152 AVCodecContext *enc;
1153 int frame_number, vid, i;
1154 double bitrate, ti1, pts;
1155 static int64_t last_time = -1;
1156 static int qp_histogram[52];
1157
1158 if (!is_last_report) {
1159 int64_t cur_time;
1160 /* display the report every 0.5 seconds */
1161 cur_time = av_gettime();
1162 if (last_time == -1) {
1163 last_time = cur_time;
1164 return;
1165 }
1166 if ((cur_time - last_time) < 500000)
1167 return;
1168 last_time = cur_time;
1169 }
1170
1171
1172 oc = output_files[0];
1173
1174 total_size = url_fsize(oc->pb);
1175 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1176 total_size= url_ftell(oc->pb);
1177
1178 buf[0] = '\0';
1179 ti1 = 1e10;
1180 vid = 0;
1181 for(i=0;i<nb_ostreams;i++) {
1182 ost = ost_table[i];
1183 enc = ost->st->codec;
1184 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1185 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1186 !ost->st->stream_copy ?
1187 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1188 }
1189 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1190 float t = (av_gettime()-timer_start) / 1000000.0;
1191
1192 frame_number = ost->frame_number;
1193 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1194 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1195 !ost->st->stream_copy ?
1196 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1197 if(is_last_report)
1198 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1199 if(qp_hist){
1200 int j;
1201 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1202 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1203 qp_histogram[qp]++;
1204 for(j=0; j<32; j++)
1205 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1206 }
1207 if (enc->flags&CODEC_FLAG_PSNR){
1208 int j;
1209 double error, error_sum=0;
1210 double scale, scale_sum=0;
1211 char type[3]= {'Y','U','V'};
1212 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1213 for(j=0; j<3; j++){
1214 if(is_last_report){
1215 error= enc->error[j];
1216 scale= enc->width*enc->height*255.0*255.0*frame_number;
1217 }else{
1218 error= enc->coded_frame->error[j];
1219 scale= enc->width*enc->height*255.0*255.0;
1220 }
1221 if(j) scale/=4;
1222 error_sum += error;
1223 scale_sum += scale;
1224 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1225 }
1226 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1227 }
1228 vid = 1;
1229 }
1230 /* compute min output value */
1231 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1232 if ((pts < ti1) && (pts > 0))
1233 ti1 = pts;
1234 }
1235 if (ti1 < 0.01)
1236 ti1 = 0.01;
1237
1238 if (verbose || is_last_report) {
1239 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1240
1241 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1242 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1243 (double)total_size / 1024, ti1, bitrate);
1244
1245 if (nb_frames_dup || nb_frames_drop)
1246 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1247 nb_frames_dup, nb_frames_drop);
1248
1249 if (verbose >= 0)
1250 fprintf(stderr, "%s \r", buf);
1251
1252 fflush(stderr);
1253 }
1254
1255 if (is_last_report && verbose >= 0){
1256 int64_t raw= audio_size + video_size + extra_size;
1257 fprintf(stderr, "\n");
1258 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1259 video_size/1024.0,
1260 audio_size/1024.0,
1261 extra_size/1024.0,
1262 100.0*(total_size - raw)/raw
1263 );
1264 }
1265 }
1266
1267 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1268 static int output_packet(AVInputStream *ist, int ist_index,
1269 AVOutputStream **ost_table, int nb_ostreams,
1270 const AVPacket *pkt)
1271 {
1272 AVFormatContext *os;
1273 AVOutputStream *ost;
1274 int ret, i;
1275 uint8_t *data_buf;
1276 int data_size, got_picture;
1277 AVFrame picture;
1278 void *buffer_to_free;
1279 static unsigned int samples_size= 0;
1280 AVSubtitle subtitle, *subtitle_to_free;
1281 int got_subtitle;
1282 AVPacket avpkt;
1283 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1284
1285 if(ist->next_pts == AV_NOPTS_VALUE)
1286 ist->next_pts= ist->pts;
1287
1288 if (pkt == NULL) {
1289 /* EOF handling */
1290 av_init_packet(&avpkt);
1291 avpkt.data = NULL;
1292 avpkt.size = 0;
1293 goto handle_eof;
1294 } else {
1295 avpkt = *pkt;
1296 }
1297
1298 if(pkt->dts != AV_NOPTS_VALUE)
1299 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1300
1301 //while we have more to decode or while the decoder did output something on EOF
1302 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1303 handle_eof:
1304 ist->pts= ist->next_pts;
1305
1306 if(avpkt.size && avpkt.size != pkt->size &&
1307 !(ist->st->codec->codec->capabilities & CODEC_CAP_SUBFRAMES) && verbose>0)
1308 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1309
1310 /* decode the packet if needed */
1311 data_buf = NULL; /* fail safe */
1312 data_size = 0;
1313 subtitle_to_free = NULL;
1314 if (ist->decoding_needed) {
1315 switch(ist->st->codec->codec_type) {
1316 case CODEC_TYPE_AUDIO:{
1317 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1318 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1319 av_free(samples);
1320 samples= av_malloc(samples_size);
1321 }
1322 data_size= samples_size;
1323 /* XXX: could avoid copy if PCM 16 bits with same
1324 endianness as CPU */
1325 ret = avcodec_decode_audio3(ist->st->codec, samples, &data_size,
1326 &avpkt);
1327 if (ret < 0)
1328 goto fail_decode;
1329 avpkt.data += ret;
1330 avpkt.size -= ret;
1331 /* Some bug in mpeg audio decoder gives */
1332 /* data_size < 0, it seems they are overflows */
1333 if (data_size <= 0) {
1334 /* no audio frame */
1335 continue;
1336 }
1337 data_buf = (uint8_t *)samples;
1338 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * data_size) /
1339 (ist->st->codec->sample_rate * ist->st->codec->channels);
1340 break;}
1341 case CODEC_TYPE_VIDEO:
1342 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1343 /* XXX: allocate picture correctly */
1344 avcodec_get_frame_defaults(&picture);
1345
1346 ret = avcodec_decode_video2(ist->st->codec,
1347 &picture, &got_picture, &avpkt);
1348 ist->st->quality= picture.quality;
1349 if (ret < 0)
1350 goto fail_decode;
1351 if (!got_picture) {
1352 /* no picture yet */
1353 goto discard_packet;
1354 }
1355 if (ist->st->codec->time_base.num != 0) {
1356 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1357 ist->next_pts += ((int64_t)AV_TIME_BASE *
1358 ist->st->codec->time_base.num * ticks) /
1359 ist->st->codec->time_base.den;
1360 }
1361 avpkt.size = 0;
1362 break;
1363 case CODEC_TYPE_SUBTITLE:
1364 ret = avcodec_decode_subtitle2(ist->st->codec,
1365 &subtitle, &got_subtitle, &avpkt);
1366 if (ret < 0)
1367 goto fail_decode;
1368 if (!got_subtitle) {
1369 goto discard_packet;
1370 }
1371 subtitle_to_free = &subtitle;
1372 avpkt.size = 0;
1373 break;
1374 default:
1375 goto fail_decode;
1376 }
1377 } else {
1378 switch(ist->st->codec->codec_type) {
1379 case CODEC_TYPE_AUDIO:
1380 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1381 ist->st->codec->sample_rate;
1382 break;
1383 case CODEC_TYPE_VIDEO:
1384 if (ist->st->codec->time_base.num != 0) {
1385 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1386 ist->next_pts += ((int64_t)AV_TIME_BASE *
1387 ist->st->codec->time_base.num * ticks) /
1388 ist->st->codec->time_base.den;
1389 }
1390 break;
1391 }
1392 data_buf = avpkt.data;
1393 data_size = avpkt.size;
1394 ret = avpkt.size;
1395 avpkt.size = 0;
1396 }
1397
1398 buffer_to_free = NULL;
1399 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1400 pre_process_video_frame(ist, (AVPicture *)&picture,
1401 &buffer_to_free);
1402 }
1403
1404 // preprocess audio (volume)
1405 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1406 if (audio_volume != 256) {
1407 short *volp;
1408 volp = samples;
1409 for(i=0;i<(data_size / sizeof(short));i++) {
1410 int v = ((*volp) * audio_volume + 128) >> 8;
1411 if (v < -32768) v = -32768;
1412 if (v > 32767) v = 32767;
1413 *volp++ = v;
1414 }
1415 }
1416 }
1417
1418 /* frame rate emulation */
1419 if (rate_emu) {
1420 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1421 int64_t now = av_gettime() - ist->start;
1422 if (pts > now)
1423 usleep(pts - now);
1424 }
1425
1426 /* if output time reached then transcode raw format,
1427 encode packets and output them */
1428 if (start_time == 0 || ist->pts >= start_time)
1429 for(i=0;i<nb_ostreams;i++) {
1430 int frame_size;
1431
1432 ost = ost_table[i];
1433 if (ost->source_index == ist_index) {
1434 os = output_files[ost->file_index];
1435
1436 /* set the input output pts pairs */
1437 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1438
1439 if (ost->encoding_needed) {
1440 switch(ost->st->codec->codec_type) {
1441 case CODEC_TYPE_AUDIO:
1442 do_audio_out(os, ost, ist, data_buf, data_size);
1443 break;
1444 case CODEC_TYPE_VIDEO:
1445 do_video_out(os, ost, ist, &picture, &frame_size);
1446 if (vstats_filename && frame_size)
1447 do_video_stats(os, ost, frame_size);
1448 break;
1449 case CODEC_TYPE_SUBTITLE:
1450 do_subtitle_out(os, ost, ist, &subtitle,
1451 pkt->pts);
1452 break;
1453 default:
1454 abort();
1455 }
1456 } else {
1457 AVFrame avframe; //FIXME/XXX remove this
1458 AVPacket opkt;
1459 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1460
1461 av_init_packet(&opkt);
1462
1463 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1464 continue;
1465
1466 /* no reencoding needed : output the packet directly */
1467 /* force the input stream PTS */
1468
1469 avcodec_get_frame_defaults(&avframe);
1470 ost->st->codec->coded_frame= &avframe;
1471 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1472
1473 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1474 audio_size += data_size;
1475 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1476 video_size += data_size;
1477 ost->sync_opts++;
1478 }
1479
1480 opkt.stream_index= ost->index;
1481 if(pkt->pts != AV_NOPTS_VALUE)
1482 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1483 else
1484 opkt.pts= AV_NOPTS_VALUE;
1485
1486 if (pkt->dts == AV_NOPTS_VALUE)
1487 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1488 else
1489 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1490 opkt.dts -= ost_tb_start_time;
1491
1492 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1493 opkt.flags= pkt->flags;
1494
1495 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1496 if(ost->st->codec->codec_id != CODEC_ID_H264) {
1497 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1498 opkt.destruct= av_destruct_packet;
1499 } else {
1500 opkt.data = data_buf;
1501 opkt.size = data_size;
1502 }
1503
1504 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1505 ost->st->codec->frame_number++;
1506 ost->frame_number++;
1507 av_free_packet(&opkt);
1508 }
1509 }
1510 }
1511 av_free(buffer_to_free);
1512 /* XXX: allocate the subtitles in the codec ? */
1513 if (subtitle_to_free) {
1514 if (subtitle_to_free->rects != NULL) {
1515 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1516 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1517 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1518 av_freep(&subtitle_to_free->rects[i]);
1519 }
1520 av_freep(&subtitle_to_free->rects);
1521 }
1522 subtitle_to_free->num_rects = 0;
1523 subtitle_to_free = NULL;
1524 }
1525 }
1526 discard_packet:
1527 if (pkt == NULL) {
1528 /* EOF handling */
1529
1530 for(i=0;i<nb_ostreams;i++) {
1531 ost = ost_table[i];
1532 if (ost->source_index == ist_index) {
1533 AVCodecContext *enc= ost->st->codec;
1534 os = output_files[ost->file_index];
1535
1536 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1537 continue;
1538 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1539 continue;
1540
1541 if (ost->encoding_needed) {
1542 for(;;) {
1543 AVPacket pkt;
1544 int fifo_bytes;
1545 av_init_packet(&pkt);
1546 pkt.stream_index= ost->index;
1547
1548 switch(ost->st->codec->codec_type) {
1549 case CODEC_TYPE_AUDIO:
1550 fifo_bytes = av_fifo_size(ost->fifo);
1551 ret = 0;
1552 /* encode any samples remaining in fifo */
1553 if (fifo_bytes > 0) {
1554 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1555 int fs_tmp = enc->frame_size;
1556
1557 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1558 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1559 enc->frame_size = fifo_bytes / (osize * enc->channels);
1560 } else { /* pad */
1561 int frame_bytes = enc->frame_size*osize*enc->channels;
1562 if (samples_size < frame_bytes)
1563 av_exit(1);
1564 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1565 }
1566
1567 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1568 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1569 ost->st->time_base.num, enc->sample_rate);
1570 enc->frame_size = fs_tmp;
1571 }
1572 if(ret <= 0) {
1573 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1574 }
1575 if (ret < 0) {
1576 fprintf(stderr, "Audio encoding failed\n");
1577 av_exit(1);
1578 }
1579 audio_size += ret;
1580 pkt.flags |= PKT_FLAG_KEY;
1581 break;
1582 case CODEC_TYPE_VIDEO:
1583 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1584 if (ret < 0) {
1585 fprintf(stderr, "Video encoding failed\n");
1586 av_exit(1);
1587 }
1588 video_size += ret;
1589 if(enc->coded_frame && enc->coded_frame->key_frame)
1590 pkt.flags |= PKT_FLAG_KEY;
1591 if (ost->logfile && enc->stats_out) {
1592 fprintf(ost->logfile, "%s", enc->stats_out);
1593 }
1594 break;
1595 default:
1596 ret=-1;
1597 }
1598
1599 if(ret<=0)
1600 break;
1601 pkt.data= bit_buffer;
1602 pkt.size= ret;
1603 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1604 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1605 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1606 }
1607 }
1608 }
1609 }
1610 }
1611
1612 return 0;
1613 fail_decode:
1614 return -1;
1615 }
1616
1617 static void print_sdp(AVFormatContext **avc, int n)
1618 {
1619 char sdp[2048];
1620
1621 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1622 printf("SDP:\n%s\n", sdp);
1623 fflush(stdout);
1624 }
1625
1626 static int stream_index_from_inputs(AVFormatContext **input_files,
1627 int nb_input_files,
1628 AVInputFile *file_table,
1629 AVInputStream **ist_table,
1630 enum CodecType type,
1631 int programid)
1632 {
1633 int p, q, z;
1634 for(z=0; z<nb_input_files; z++) {
1635 AVFormatContext *ic = input_files[z];
1636 for(p=0; p<ic->nb_programs; p++) {
1637 AVProgram *program = ic->programs[p];
1638 if(program->id != programid)
1639 continue;
1640 for(q=0; q<program->nb_stream_indexes; q++) {
1641 int sidx = program->stream_index[q];
1642 int ris = file_table[z].ist_index + sidx;
1643 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1644 return ris;
1645 }
1646 }
1647 }
1648
1649 return -1;
1650 }
1651
1652 /*
1653 * The following code is the main loop of the file converter
1654 */
1655 static int av_encode(AVFormatContext **output_files,
1656 int nb_output_files,
1657 AVFormatContext **input_files,
1658 int nb_input_files,
1659 AVStreamMap *stream_maps, int nb_stream_maps)
1660 {
1661 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1662 AVFormatContext *is, *os;
1663 AVCodecContext *codec, *icodec;
1664 AVOutputStream *ost, **ost_table = NULL;
1665 AVInputStream *ist, **ist_table = NULL;
1666 AVInputFile *file_table;
1667 char error[1024];
1668 int key;
1669 int want_sdp = 1;
1670 uint8_t no_packet[MAX_FILES]={0};
1671 int no_packet_count=0;
1672
1673 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1674 if (!file_table)
1675 goto fail;
1676
1677 /* input stream init */
1678 j = 0;
1679 for(i=0;i<nb_input_files;i++) {
1680 is = input_files[i];
1681 file_table[i].ist_index = j;
1682 file_table[i].nb_streams = is->nb_streams;
1683 j += is->nb_streams;
1684 }
1685 nb_istreams = j;
1686
1687 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1688 if (!ist_table)
1689 goto fail;
1690
1691 for(i=0;i<nb_istreams;i++) {
1692 ist = av_mallocz(sizeof(AVInputStream));
1693 if (!ist)
1694 goto fail;
1695 ist_table[i] = ist;
1696 }
1697 j = 0;
1698 for(i=0;i<nb_input_files;i++) {
1699 is = input_files[i];
1700 for(k=0;k<is->nb_streams;k++) {
1701 ist = ist_table[j++];
1702 ist->st = is->streams[k];
1703 ist->file_index = i;
1704 ist->index = k;
1705 ist->discard = 1; /* the stream is discarded by default
1706 (changed later) */
1707
1708 if (rate_emu) {
1709 ist->start = av_gettime();
1710 }
1711 }
1712 }
1713
1714 /* output stream init */
1715 nb_ostreams = 0;
1716 for(i=0;i<nb_output_files;i++) {
1717 os = output_files[i];
1718 if (!os->nb_streams) {
1719 dump_format(output_files[i], i, output_files[i]->filename, 1);
1720 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1721 av_exit(1);
1722 }
1723 nb_ostreams += os->nb_streams;
1724 }
1725 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1726 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1727 av_exit(1);
1728 }
1729
1730 /* Sanity check the mapping args -- do the input files & streams exist? */
1731 for(i=0;i<nb_stream_maps;i++) {
1732 int fi = stream_maps[i].file_index;
1733 int si = stream_maps[i].stream_index;
1734
1735 if (fi < 0 || fi > nb_input_files - 1 ||
1736 si < 0 || si > file_table[fi].nb_streams - 1) {
1737 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1738 av_exit(1);
1739 }
1740 fi = stream_maps[i].sync_file_index;
1741 si = stream_maps[i].sync_stream_index;
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 sync stream #%d.%d\n", fi, si);
1745 av_exit(1);
1746 }
1747 }
1748
1749 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1750 if (!ost_table)
1751 goto fail;
1752 for(i=0;i<nb_ostreams;i++) {
1753 ost = av_mallocz(sizeof(AVOutputStream));
1754 if (!ost)
1755 goto fail;
1756 ost_table[i] = ost;
1757 }
1758
1759 n = 0;
1760 for(k=0;k<nb_output_files;k++) {
1761 os = output_files[k];
1762 for(i=0;i<os->nb_streams;i++,n++) {
1763 int found;
1764 ost = ost_table[n];
1765 ost->file_index = k;
1766 ost->index = i;
1767 ost->st = os->streams[i];
1768 if (nb_stream_maps > 0) {
1769 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1770 stream_maps[n].stream_index;
1771
1772 /* Sanity check that the stream types match */
1773 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1774 int i= ost->file_index;
1775 dump_format(output_files[i], i, output_files[i]->filename, 1);
1776 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1777 stream_maps[n].file_index, stream_maps[n].stream_index,
1778 ost->file_index, ost->index);
1779 av_exit(1);
1780 }
1781
1782 } else {
1783 if(opt_programid) {
1784 found = 0;
1785 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1786 if(j != -1) {
1787 ost->source_index = j;
1788 found = 1;
1789 }
1790 } else {
1791 /* get corresponding input stream index : we select the first one with the right type */
1792 found = 0;
1793 for(j=0;j<nb_istreams;j++) {
1794 ist = ist_table[j];
1795 if (ist->discard &&
1796 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1797 ost->source_index = j;
1798 found = 1;
1799 break;
1800 }
1801 }
1802 }
1803
1804 if (!found) {
1805 if(! opt_programid) {
1806 /* try again and reuse existing stream */
1807 for(j=0;j<nb_istreams;j++) {
1808 ist = ist_table[j];
1809 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1810 ost->source_index = j;
1811 found = 1;
1812 }
1813 }
1814 }
1815 if (!found) {
1816 int i= ost->file_index;
1817 dump_format(output_files[i], i, output_files[i]->filename, 1);
1818 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1819 ost->file_index, ost->index);
1820 av_exit(1);
1821 }
1822 }
1823 }
1824 ist = ist_table[ost->source_index];
1825 ist->discard = 0;
1826 ost->sync_ist = (nb_stream_maps > 0) ?
1827 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1828 stream_maps[n].sync_stream_index] : ist;
1829 }
1830 }
1831
1832 /* for each output stream, we compute the right encoding parameters */
1833 for(i=0;i<nb_ostreams;i++) {
1834 AVMetadataTag *lang;
1835 ost = ost_table[i];
1836 os = output_files[ost->file_index];
1837 ist = ist_table[ost->source_index];
1838
1839 codec = ost->st->codec;
1840 icodec = ist->st->codec;
1841
1842 if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
1843 && !av_metadata_get(ost->st->metadata, "language", NULL, 0))
1844 av_metadata_set(&ost->st->metadata, "language", lang->value);
1845
1846 ost->st->disposition = ist->st->disposition;
1847 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1848 codec->chroma_sample_location = icodec->chroma_sample_location;
1849
1850 if (ost->st->stream_copy) {
1851 /* if stream_copy is selected, no need to decode or encode */
1852 codec->codec_id = icodec->codec_id;
1853 codec->codec_type = icodec->codec_type;
1854
1855 if(!codec->codec_tag){
1856 if( !os->oformat->codec_tag
1857 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1858 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1859 codec->codec_tag = icodec->codec_tag;
1860 }
1861
1862 codec->bit_rate = icodec->bit_rate;
1863 codec->extradata= icodec->extradata;
1864 codec->extradata_size= icodec->extradata_size;
1865 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){
1866 codec->time_base = icodec->time_base;
1867 codec->time_base.num *= icodec->ticks_per_frame;
1868 }else
1869 codec->time_base = ist->st->time_base;
1870 switch(codec->codec_type) {
1871 case CODEC_TYPE_AUDIO:
1872 if(audio_volume != 256) {
1873 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1874 av_exit(1);
1875 }
1876 codec->channel_layout = icodec->channel_layout;
1877 codec->sample_rate = icodec->sample_rate;
1878 codec->channels = icodec->channels;
1879 codec->frame_size = icodec->frame_size;
1880 codec->block_align= icodec->block_align;
1881 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1882 codec->block_align= 0;
1883 if(codec->codec_id == CODEC_ID_AC3)
1884 codec->block_align= 0;
1885 break;
1886 case CODEC_TYPE_VIDEO:
1887 codec->pix_fmt = icodec->pix_fmt;
1888 codec->width = icodec->width;
1889 codec->height = icodec->height;
1890 codec->has_b_frames = icodec->has_b_frames;
1891 break;
1892 case CODEC_TYPE_SUBTITLE:
1893 codec->width = icodec->width;
1894 codec->height = icodec->height;
1895 break;
1896 default:
1897 abort();
1898 }
1899 } else {
1900 switch(codec->codec_type) {
1901 case CODEC_TYPE_AUDIO:
1902 ost->fifo= av_fifo_alloc(1024);
1903 if(!ost->fifo)
1904 goto fail;
1905 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1906 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1907 icodec->request_channels = codec->channels;
1908 ist->decoding_needed = 1;
1909 ost->encoding_needed = 1;
1910 break;
1911 case CODEC_TYPE_VIDEO:
1912 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1913 fprintf(stderr, "Video pixel format is unknown, stream cannot be decoded\n");
1914 av_exit(1);
1915 }
1916 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1917 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1918 ost->video_resample = ((codec->width != icodec->width -
1919 (frame_leftBand + frame_rightBand) +
1920 (frame_padleft + frame_padright)) ||
1921 (codec->height != icodec->height -
1922 (frame_topBand + frame_bottomBand) +
1923 (frame_padtop + frame_padbottom)) ||
1924 (codec->pix_fmt != icodec->pix_fmt));
1925 if (ost->video_crop) {
1926 ost->topBand = ost->original_topBand = frame_topBand;
1927 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
1928 ost->leftBand = ost->original_leftBand = frame_leftBand;
1929 ost->rightBand = ost->original_rightBand = frame_rightBand;
1930 }
1931 if (ost->video_pad) {
1932 ost->padtop = frame_padtop;
1933 ost->padleft = frame_padleft;
1934 ost->padbottom = frame_padbottom;
1935 ost->padright = frame_padright;
1936 if (!ost->video_resample) {
1937 avcodec_get_frame_defaults(&ost->pict_tmp);
1938 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1939 codec->width, codec->height))
1940 goto fail;
1941 }
1942 }
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 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1948 av_exit(1);
1949 }
1950 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1951 ost->img_resample_ctx = sws_getContext(
1952 icodec->width - (frame_leftBand + frame_rightBand),
1953 icodec->height - (frame_topBand + frame_bottomBand),
1954 icodec->pix_fmt,
1955 codec->width - (frame_padleft + frame_padright),
1956 codec->height - (frame_padtop + frame_padbottom),
1957 codec->pix_fmt,
1958 sws_flags, NULL, NULL, NULL);
1959 if (ost->img_resample_ctx == NULL) {
1960 fprintf(stderr, "Cannot get resampling context\n");
1961 av_exit(1);
1962 }
1963
1964 ost->original_height = icodec->height;
1965 ost->original_width = icodec->width;
1966
1967 codec->bits_per_raw_sample= 0;
1968 }
1969 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1970 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
1971 ost->resample_pix_fmt= icodec->pix_fmt;
1972 ost->encoding_needed = 1;
1973 ist->decoding_needed = 1;
1974 break;
1975 case CODEC_TYPE_SUBTITLE:
1976 ost->encoding_needed = 1;
1977 ist->decoding_needed = 1;
1978 break;
1979 default:
1980 abort();
1981 break;
1982 }
1983 /* two pass mode */
1984 if (ost->encoding_needed &&
1985 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1986 char logfilename[1024];
1987 FILE *f;
1988 int size;
1989 char *logbuffer;
1990
1991 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1992 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1993 i);
1994 if (codec->flags & CODEC_FLAG_PASS1) {
1995 f = fopen(logfilename, "w");
1996 if (!f) {
1997 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1998 av_exit(1);
1999 }
2000 ost->logfile = f;
2001 } else {
2002 /* read the log file */
2003 f = fopen(logfilename, "r");
2004 if (!f) {
2005 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
2006 av_exit(1);
2007 }
2008 fseek(f, 0, SEEK_END);
2009 size = ftell(f);
2010 fseek(f, 0, SEEK_SET);
2011 logbuffer = av_malloc(size + 1);
2012 if (!logbuffer) {
2013 fprintf(stderr, "Could not allocate log buffer\n");
2014 av_exit(1);
2015 }
2016 size = fread(logbuffer, 1, size, f);
2017 fclose(f);
2018 logbuffer[size] = '\0';
2019 codec->stats_in = logbuffer;
2020 }
2021 }
2022 }
2023 if(codec->codec_type == CODEC_TYPE_VIDEO){
2024 int size= codec->width * codec->height;
2025 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2026 }
2027 }
2028
2029 if (!bit_buffer)
2030 bit_buffer = av_malloc(bit_buffer_size);
2031 if (!bit_buffer) {
2032 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2033 bit_buffer_size);
2034 ret = AVERROR(ENOMEM);
2035 goto fail;
2036 }
2037
2038 /* open each encoder */
2039 for(i=0;i<nb_ostreams;i++) {
2040 ost = ost_table[i];
2041 if (ost->encoding_needed) {
2042 AVCodec *codec = output_codecs[i];
2043 if (!codec)
2044 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2045 if (!codec) {
2046 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2047 ost->st->codec->codec_id, ost->file_index, ost->index);
2048 ret = AVERROR(EINVAL);
2049 goto dump_format;
2050 }
2051 if (avcodec_open(ost->st->codec, codec) < 0) {
2052 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2053 ost->file_index, ost->index);
2054 ret = AVERROR(EINVAL);
2055 goto dump_format;
2056 }
2057 extra_size += ost->st->codec->extradata_size;
2058 }
2059 }
2060
2061 /* open each decoder */
2062 for(i=0;i<nb_istreams;i++) {
2063 ist = ist_table[i];
2064 if (ist->decoding_needed) {
2065 AVCodec *codec = input_codecs[i];
2066 if (!codec)
2067 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2068 if (!codec) {
2069 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2070 ist->st->codec->codec_id, ist->file_index, ist->index);
2071 ret = AVERROR(EINVAL);
2072 goto dump_format;
2073 }
2074 if (avcodec_open(ist->st->codec, codec) < 0) {
2075 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2076 ist->file_index, ist->index);
2077 ret = AVERROR(EINVAL);
2078 goto dump_format;
2079 }
2080 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
2081 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2082 }
2083 }
2084
2085 /* init pts */
2086 for(i=0;i<nb_istreams;i++) {
2087 ist = ist_table[i];
2088 ist->pts = 0;
2089 ist->next_pts = AV_NOPTS_VALUE;
2090 ist->is_start = 1;
2091 }
2092
2093 /* set meta data information from input file if required */
2094 for (i=0;i<nb_meta_data_maps;i++) {
2095 AVFormatContext *out_file;
2096 AVFormatContext *in_file;
2097 AVMetadataTag *mtag;
2098
2099 int out_file_index = meta_data_maps[i].out_file;
2100 int in_file_index = meta_data_maps[i].in_file;
2101 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2102 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2103 out_file_index, out_file_index, in_file_index);
2104 ret = AVERROR(EINVAL);
2105 goto dump_format;
2106 }
2107 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2108 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2109 in_file_index, out_file_index, in_file_index);
2110 ret = AVERROR(EINVAL);
2111 goto dump_format;
2112 }
2113
2114 out_file = output_files[out_file_index];
2115 in_file = input_files[in_file_index];
2116
2117
2118 mtag=NULL;
2119 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2120 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
2121 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2122 in_file->iformat->metadata_conv);
2123 }
2124
2125 /* open files and write file headers */
2126 for(i=0;i<nb_output_files;i++) {
2127 os = output_files[i];
2128 if (av_write_header(os) < 0) {
2129 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2130 ret = AVERROR(EINVAL);
2131 goto dump_format;
2132 }
2133 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2134 want_sdp = 0;
2135 }
2136 }
2137
2138 dump_format:
2139 /* dump the file output parameters - cannot be done before in case
2140 of stream copy */
2141 for(i=0;i<nb_output_files;i++) {
2142 dump_format(output_files[i], i, output_files[i]->filename, 1);
2143 }
2144
2145 /* dump the stream mapping */
2146 if (verbose >= 0) {
2147 fprintf(stderr, "Stream mapping:\n");
2148 for(i=0;i<nb_ostreams;i++) {
2149 ost = ost_table[i];
2150 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2151 ist_table[ost->source_index]->file_index,
2152 ist_table[ost->source_index]->index,
2153 ost->file_index,
2154 ost->index);
2155 if (ost->sync_ist != ist_table[ost->source_index])
2156 fprintf(stderr, " [sync #%d.%d]",
2157 ost->sync_ist->file_index,
2158 ost->sync_ist->index);
2159 fprintf(stderr, "\n");
2160 }
2161 }
2162
2163 if (ret) {
2164 fprintf(stderr, "%s\n", error);
2165 goto fail;
2166 }
2167
2168 if (want_sdp) {
2169 print_sdp(output_files, nb_output_files);
2170 }
2171
2172 if (!using_stdin && verbose >= 0) {
2173 fprintf(stderr, "Press [q] to stop encoding\n");
2174 url_set_interrupt_cb(decode_interrupt_cb);
2175 }
2176 term_init();
2177
2178 timer_start = av_gettime();
2179
2180 for(; received_sigterm == 0;) {
2181 int file_index, ist_index;
2182 AVPacket pkt;
2183 double ipts_min;
2184 double opts_min;
2185
2186 redo:
2187 ipts_min= 1e100;
2188 opts_min= 1e100;
2189 /* if 'q' pressed, exits */
2190 if (!using_stdin) {
2191 if (q_pressed)
2192 break;
2193 /* read_key() returns 0 on EOF */
2194 key = read_key();
2195 if (key == 'q')
2196 break;
2197 }
2198
2199 /* select the stream that we must read now by looking at the
2200 smallest output pts */
2201 file_index = -1;
2202 for(i=0;i<nb_ostreams;i++) {
2203 double ipts, opts;
2204 ost = ost_table[i];
2205 os = output_files[ost->file_index];
2206 ist = ist_table[ost->source_index];
2207 if(no_packet[ist->file_index])
2208 continue;
2209 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2210 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2211 else
2212 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2213 ipts = (double)ist->pts;
2214 if (!file_table[ist->file_index].eof_reached){
2215 if(ipts < ipts_min) {
2216 ipts_min = ipts;
2217 if(input_sync ) file_index = ist->file_index;
2218 }
2219 if(opts < opts_min) {
2220 opts_min = opts;
2221 if(!input_sync) file_index = ist->file_index;
2222 }
2223 }
2224 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2225 file_index= -1;
2226 break;
2227 }
2228 }
2229 /* if none, if is finished */
2230 if (file_index < 0) {
2231 if(no_packet_count){
2232 no_packet_count=0;
2233 memset(no_packet, 0, sizeof(no_packet));
2234 usleep(10000);
2235 continue;
2236 }
2237 break;
2238 }
2239
2240 /* finish if recording time exhausted */
2241 if (opts_min >= (recording_time / 1000000.0))
2242 break;
2243
2244 /* finish if limit size exhausted */
2245 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2246 break;
2247
2248 /* read a frame from it and output it in the fifo */
2249 is = input_files[file_index];
2250 ret= av_read_frame(is, &pkt);
2251 if(ret == AVERROR(EAGAIN)){
2252 no_packet[file_index]=1;
2253 no_packet_count++;
2254 continue;
2255 }
2256 if (ret < 0) {
2257 file_table[file_index].eof_reached = 1;
2258 if (opt_shortest)
2259 break;
2260 else
2261 continue;
2262 }
2263
2264 no_packet_count=0;
2265 memset(no_packet, 0, sizeof(no_packet));
2266
2267 if (do_pkt_dump) {
2268 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2269 }
2270 /* the following test is needed in case new streams appear
2271 dynamically in stream : we ignore them */
2272 if (pkt.stream_index >= file_table[file_index].nb_streams)
2273 goto discard_packet;
2274 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2275 ist = ist_table[ist_index];
2276 if (ist->discard)
2277 goto discard_packet;
2278
2279 if (pkt.dts != AV_NOPTS_VALUE)
2280 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2281 if (pkt.pts != AV_NOPTS_VALUE)
2282 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2283
2284 if(input_files_ts_scale[file_index][pkt.stream_index]){
2285 if(pkt.pts != AV_NOPTS_VALUE)
2286 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2287 if(pkt.dts != AV_NOPTS_VALUE)
2288 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2289 }
2290
2291 // 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);
2292 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2293 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2294 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2295 int64_t delta= pkt_dts - ist->next_pts;
2296 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2297 input_files_ts_offset[ist->file_index]-= delta;
2298 if (verbose > 2)
2299 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2300 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2301 if(pkt.pts != AV_NOPTS_VALUE)
2302 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2303 }
2304 }
2305
2306 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2307 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2308
2309 if (verbose >= 0)
2310 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2311 ist->file_index, ist->index);
2312 if (exit_on_error)
2313 av_exit(1);
2314 av_free_packet(&pkt);
2315 goto redo;
2316 }
2317
2318 discard_packet:
2319 av_free_packet(&pkt);
2320
2321 /* dump report by using the output first video and audio streams */
2322 print_report(output_files, ost_table, nb_ostreams, 0);
2323 }
2324
2325 /* at the end of stream, we must flush the decoder buffers */
2326 for(i=0;i<nb_istreams;i++) {
2327 ist = ist_table[i];
2328 if (ist->decoding_needed) {
2329 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2330 }
2331 }
2332
2333 term_exit();
2334
2335 /* write the trailer if needed and close file */
2336 for(i=0;i<nb_output_files;i++) {
2337 os = output_files[i];
2338 av_write_trailer(os);
2339 }
2340
2341 /* dump report by using the first video and audio streams */
2342 print_report(output_files, ost_table, nb_ostreams, 1);
2343
2344 /* close each encoder */
2345 for(i=0;i<nb_ostreams;i++) {
2346 ost = ost_table[i];
2347 if (ost->encoding_needed) {
2348 av_freep(&ost->st->codec->stats_in);
2349 avcodec_close(ost->st->codec);
2350 }
2351 }
2352
2353 /* close each decoder */
2354 for(i=0;i<nb_istreams;i++) {
2355 ist = ist_table[i];
2356 if (ist->decoding_needed) {
2357 avcodec_close(ist->st->codec);
2358 }
2359 }
2360
2361 /* finished ! */
2362 ret = 0;
2363
2364 fail:
2365 av_freep(&bit_buffer);
2366 av_free(file_table);
2367
2368 if (ist_table) {
2369 for(i=0;i<nb_istreams;i++) {
2370 ist = ist_table[i];
2371 av_free(ist);
2372 }
2373 av_free(ist_table);
2374 }
2375 if (ost_table) {
2376 for(i=0;i<nb_ostreams;i++) {
2377 ost = ost_table[i];
2378 if (ost) {
2379 if (ost->logfile) {
2380 fclose(ost->logfile);
2381 ost->logfile = NULL;
2382 }
2383 av_fifo_free(ost->fifo); /* works even if fifo is not
2384 initialized but set to zero */
2385 av_free(ost->pict_tmp.data[0]);
2386 if (ost->video_resample)
2387 sws_freeContext(ost->img_resample_ctx);
2388 if (ost->resample)
2389 audio_resample_close(ost->resample);
2390 if (ost->reformat_ctx)
2391 av_audio_convert_free(ost->reformat_ctx);
2392 av_free(ost);
2393 }
2394 }
2395 av_free(ost_table);
2396 }
2397 return ret;
2398 }
2399
2400 static void opt_format(const char *arg)
2401 {
2402 /* compatibility stuff for pgmyuv */
2403 if (!strcmp(arg, "pgmyuv")) {
2404 pgmyuv_compatibility_hack=1;
2405 // opt_image_format(arg);
2406 arg = "image2";
2407 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2408 }
2409
2410 last_asked_format = arg;
2411 }
2412
2413 static void opt_video_rc_override_string(const char *arg)
2414 {
2415 video_rc_override_string = arg;
2416 }
2417
2418 static int opt_me_threshold(const char *opt, const char *arg)
2419 {
2420 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2421 return 0;
2422 }
2423
2424 static int opt_verbose(const char *opt, const char *arg)
2425 {
2426 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2427 return 0;
2428 }
2429
2430 static int opt_frame_rate(const char *opt, const char *arg)
2431 {
2432 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2433 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2434 av_exit(1);
2435 }
2436 return 0;
2437 }
2438
2439 static int opt_bitrate(const char *opt, const char *arg)
2440 {
2441 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2442
2443 opt_default(opt, arg);
2444
2445 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2446 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2447
2448 return 0;
2449 }
2450
2451 static void opt_frame_crop_top(const char *arg)
2452 {
2453 frame_topBand = atoi(arg);
2454 if (frame_topBand < 0) {
2455 fprintf(stderr, "Incorrect top crop size\n");
2456 av_exit(1);
2457 }
2458 if ((frame_topBand) >= frame_height){
2459 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2460 av_exit(1);
2461 }
2462 frame_height -= frame_topBand;
2463 }
2464
2465 static void opt_frame_crop_bottom(const char *arg)
2466 {
2467 frame_bottomBand = atoi(arg);
2468 if (frame_bottomBand < 0) {
2469 fprintf(stderr, "Incorrect bottom crop size\n");
2470 av_exit(1);
2471 }
2472 if ((frame_bottomBand) >= frame_height){
2473 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2474 av_exit(1);
2475 }
2476 frame_height -= frame_bottomBand;
2477 }
2478
2479 static void opt_frame_crop_left(const char *arg)
2480 {
2481 frame_leftBand = atoi(arg);
2482 if (frame_leftBand < 0) {
2483 fprintf(stderr, "Incorrect left crop size\n");
2484 av_exit(1);
2485 }
2486 if ((frame_leftBand) >= frame_width){
2487 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2488 av_exit(1);
2489 }
2490 frame_width -= frame_leftBand;
2491 }
2492
2493 static void opt_frame_crop_right(const char *arg)
2494 {
2495 frame_rightBand = atoi(arg);
2496 if (frame_rightBand < 0) {
2497 fprintf(stderr, "Incorrect right crop size\n");
2498 av_exit(1);
2499 }
2500 if ((frame_rightBand) >= frame_width){
2501 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2502 av_exit(1);
2503 }
2504 frame_width -= frame_rightBand;
2505 }
2506
2507 static void opt_frame_size(const char *arg)
2508 {
2509 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2510 fprintf(stderr, "Incorrect frame size\n");
2511 av_exit(1);
2512 }
2513 }
2514
2515 static void opt_pad_color(const char *arg) {
2516 /* Input is expected to be six hex digits similar to
2517 how colors are expressed in html tags (but without the #) */
2518 int rgb = strtol(arg, NULL, 16);
2519 int r,g,b;
2520
2521 r = (rgb >> 16);
2522 g = ((rgb >> 8) & 255);
2523 b = (rgb & 255);
2524
2525 padcolor[0] = RGB_TO_Y(r,g,b);
2526 padcolor[1] = RGB_TO_U(r,g,b,0);
2527 padcolor[2] = RGB_TO_V(r,g,b,0);
2528 }
2529
2530 static void opt_frame_pad_top(const char *arg)
2531 {
2532 frame_padtop = atoi(arg);
2533 if (frame_padtop < 0) {
2534 fprintf(stderr, "Incorrect top pad size\n");
2535 av_exit(1);
2536 }
2537 }
2538
2539 static void opt_frame_pad_bottom(const char *arg)
2540 {
2541 frame_padbottom = atoi(arg);
2542 if (frame_padbottom < 0) {
2543 fprintf(stderr, "Incorrect bottom pad size\n");
2544 av_exit(1);
2545 }
2546 }
2547
2548
2549 static void opt_frame_pad_left(const char *arg)
2550 {
2551 frame_padleft = atoi(arg);
2552 if (frame_padleft < 0) {
2553 fprintf(stderr, "Incorrect left pad size\n");
2554 av_exit(1);
2555 }
2556 }
2557
2558
2559 static void opt_frame_pad_right(const char *arg)
2560 {
2561 frame_padright = atoi(arg);
2562 if (frame_padright < 0) {
2563 fprintf(stderr, "Incorrect right pad size\n");
2564 av_exit(1);
2565 }
2566 }
2567
2568 static void opt_frame_pix_fmt(const char *arg)
2569 {
2570 if (strcmp(arg, "list")) {
2571 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2572 if (frame_pix_fmt == PIX_FMT_NONE) {
2573 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2574 av_exit(1);
2575 }
2576 } else {
2577 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2578 av_exit(0);
2579 }
2580 }
2581
2582 static void opt_frame_aspect_ratio(const char *arg)
2583 {
2584 int x = 0, y = 0;
2585 double ar = 0;
2586 const char *p;
2587 char *end;
2588
2589 p = strchr(arg, ':');
2590 if (p) {
2591 x = strtol(arg, &end, 10);
2592 if (end == p)
2593 y = strtol(end+1, &end, 10);
2594 if (x > 0 && y > 0)
2595 ar = (double)x / (double)y;
2596 } else
2597 ar = strtod(arg, NULL);
2598
2599 if (!ar) {
2600 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2601 av_exit(1);
2602 }
2603 frame_aspect_ratio = ar;
2604 }
2605
2606 static int opt_metadata(const char *opt, const char *arg)
2607 {
2608 char *mid= strchr(arg, '=');
2609
2610 if(!mid){
2611 fprintf(stderr, "Missing =\n");
2612 av_exit(1);
2613 }
2614 *mid++= 0;
2615
2616 metadata_count++;
2617 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2618 metadata[metadata_count-1].key = av_strdup(arg);
2619 metadata[metadata_count-1].value= av_strdup(mid);
2620
2621 return 0;
2622 }
2623
2624 static void opt_qscale(const char *arg)
2625 {
2626 video_qscale = atof(arg);
2627 if (video_qscale <= 0 ||
2628 video_qscale > 255) {
2629 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2630 av_exit(1);
2631 }
2632 }
2633
2634 static void opt_top_field_first(const char *arg)
2635 {
2636 top_field_first= atoi(arg);
2637 }
2638
2639 static int opt_thread_count(const char *opt, const char *arg)
2640 {
2641 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2642 #if !HAVE_THREADS
2643 if (verbose >= 0)
2644 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2645 #endif
2646 return 0;
2647 }
2648
2649 static void opt_audio_sample_fmt(const char *arg)
2650 {
2651 if (strcmp(arg, "list"))
2652 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2653 else {
2654 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2655 av_exit(0);
2656 }
2657 }
2658
2659 static int opt_audio_rate(const char *opt, const char *arg)
2660 {
2661 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2662 return 0;
2663 }
2664
2665 static int opt_audio_channels(const char *opt, const char *arg)
2666 {
2667 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2668 return 0;
2669 }
2670
2671 static void opt_video_channel(const char *arg)
2672 {
2673 video_channel = strtol(arg, NULL, 0);
2674 }
2675
2676 static void opt_video_standard(const char *arg)
2677 {
2678 video_standard = av_strdup(arg);
2679 }
2680
2681 static void opt_codec(int *pstream_copy, char **pcodec_name,
2682 int codec_type, const char *arg)
2683 {
2684 av_freep(pcodec_name);
2685 if (!strcmp(arg, "copy")) {
2686 *pstream_copy = 1;
2687 } else {
2688 *pcodec_name = av_strdup(arg);
2689 }
2690 }
2691
2692 static void opt_audio_codec(const char *arg)
2693 {
2694 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2695 }
2696
2697 static void opt_audio_tag(const char *arg)
2698 {
2699 char *tail;
2700 audio_codec_tag= strtol(arg, &tail, 0);
2701
2702 if(!tail || *tail)
2703 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2704 }
2705
2706 static void opt_video_tag(const char *arg)
2707 {
2708 char *tail;
2709 video_codec_tag= strtol(arg, &tail, 0);
2710
2711 if(!tail || *tail)
2712 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2713 }
2714
2715 static void opt_video_codec(const char *arg)
2716 {
2717 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2718 }
2719
2720 static void opt_subtitle_codec(const char *arg)
2721 {
2722 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2723 }
2724
2725 static void opt_subtitle_tag(const char *arg)
2726 {
2727 char *tail;
2728 subtitle_codec_tag= strtol(arg, &tail, 0);
2729
2730 if(!tail || *tail)
2731 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2732 }
2733
2734 static void opt_map(const char *arg)
2735 {
2736 AVStreamMap *m;
2737 char *p;
2738
2739 m = &stream_maps[nb_stream_maps++];
2740
2741 m->file_index = strtol(arg, &p, 0);
2742 if (*p)
2743 p++;
2744
2745 m->stream_index = strtol(p, &p, 0);
2746 if (*p) {
2747 p++;
2748 m->sync_file_index = strtol(p, &p, 0);
2749 if (*p)
2750 p++;
2751 m->sync_stream_index = strtol(p, &p, 0);
2752 } else {
2753 m->sync_file_index = m->file_index;
2754 m->sync_stream_index = m->stream_index;
2755 }
2756 }
2757
2758 static void opt_map_meta_data(const char *arg)
2759 {
2760 AVMetaDataMap *m;
2761 char *p;
2762
2763 m = &meta_data_maps[nb_meta_data_maps++];
2764
2765 m->out_file = strtol(arg, &p, 0);
2766 if (*p)
2767 p++;
2768
2769 m->in_file = strtol(p, &p, 0);
2770 }
2771
2772 static void opt_input_ts_scale(const char *arg)
2773 {
2774 unsigned int stream;
2775 double scale;
2776 char *p;
2777
2778 stream = strtol(arg, &p, 0);
2779 if (*p)
2780 p++;
2781 scale= strtod(p, &p);
2782
2783 if(stream >= MAX_STREAMS)
2784 av_exit(1);
2785
2786 input_files_ts_scale[nb_input_files][stream]= scale;
2787 }
2788
2789 static int opt_recording_time(const char *opt, const char *arg)
2790 {
2791 recording_time = parse_time_or_die(opt, arg, 1);
2792 return 0;
2793 }
2794
2795 static int opt_start_time(const char *opt, const char *arg)
2796 {
2797 start_time = parse_time_or_die(opt, arg, 1);
2798 return 0;
2799 }
2800
2801 static int opt_rec_timestamp(const char *opt, const char *arg)
2802 {
2803 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2804 return 0;
2805 }
2806
2807 static int opt_input_ts_offset(const char *opt, const char *arg)
2808 {
2809 input_ts_offset = parse_time_or_die(opt, arg, 1);
2810 return 0;
2811 }
2812
2813 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2814 {
2815 const char *codec_string = encoder ? "encoder" : "decoder";
2816 AVCodec *codec;
2817
2818 if(!name)
2819 return CODEC_ID_NONE;
2820 codec = encoder ?
2821 avcodec_find_encoder_by_name(name) :
2822 avcodec_find_decoder_by_name(name);
2823 if(!codec) {
2824 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2825 av_exit(1);
2826 }
2827 if(codec->type != type) {
2828 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2829 av_exit(1);
2830 }
2831 return codec->id;
2832 }
2833
2834 static void opt_input_file(const char *filename)
2835 {
2836 AVFormatContext *ic;
2837 AVFormatParameters params, *ap = &params;
2838 AVInputFormat *file_iformat = NULL;
2839 int err, i, ret, rfps, rfps_base;
2840 int64_t timestamp;
2841
2842 if (last_asked_format) {
2843 file_iformat = av_find_input_format(last_asked_format);
2844 last_asked_format = NULL;
2845 }
2846
2847 if (!strcmp(filename, "-"))
2848 filename = "pipe:";
2849
2850 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2851 !strcmp(filename, "/dev/stdin");
2852
2853 /* get default parameters from command line */
2854 ic = avformat_alloc_context();
2855 if (!ic) {
2856 print_error(filename, AVERROR(ENOMEM));
2857 av_exit(1);
2858 }
2859
2860 memset(ap, 0, sizeof(*ap));
2861 ap->prealloced_context = 1;
2862 ap->sample_rate = audio_sample_rate;
2863 ap->channels = audio_channels;
2864 ap->time_base.den = frame_rate.num;
2865 ap->time_base.num = frame_rate.den;
2866 ap->width = frame_width + frame_padleft + frame_padright;
2867 ap->height = frame_height + frame_padtop + frame_padbottom;
2868 ap->pix_fmt = frame_pix_fmt;
2869 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2870 ap->channel = video_channel;
2871 ap->standard = video_standard;
2872 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2873 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2874 if(pgmyuv_compatibility_hack)
2875 ap->video_codec_id= CODEC_ID_PGMYUV;
2876
2877 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2878
2879 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2880 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2881 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2882 ic->flags |= AVFMT_FLAG_NONBLOCK;
2883
2884 /* open the input file with generic libav function */
2885 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2886 if (err < 0) {
2887 print_error(filename, err);
2888 av_exit(1);
2889 }
2890 if(opt_programid) {
2891 int i;
2892 for(i=0; i<ic->nb_programs; i++)
2893 if(ic->programs[i]->id != opt_programid)
2894 ic->programs[i]->discard = AVDISCARD_ALL;
2895 }
2896
2897 ic->loop_input = loop_input;
2898
2899 /* If not enough info to get the stream parameters, we decode the
2900 first frames to get it. (used in mpeg case for example) */
2901 ret = av_find_stream_info(ic);
2902 if (ret < 0 && verbose >= 0) {
2903 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2904 av_exit(1);
2905 }
2906
2907 timestamp = start_time;
2908 /* add the stream start time */
2909 if (ic->start_time != AV_NOPTS_VALUE)
2910 timestamp += ic->start_time;
2911
2912 /* if seeking requested, we execute it */
2913 if (start_time != 0) {
2914 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2915 if (ret < 0) {
2916 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2917 filename, (double)timestamp / AV_TIME_BASE);
2918 }
2919 /* reset seek info */
2920 start_time = 0;
2921 }
2922
2923 /* update the current parameters so that they match the one of the input stream */
2924 for(i=0;i<ic->nb_streams;i++) {
2925 AVStream *st = ic->streams[i];
2926 AVCodecContext *enc = st->codec;
2927 if(thread_count>1)
2928 avcodec_thread_init(enc, thread_count);
2929 enc->thread_count= thread_count;
2930 switch(enc->codec_type) {
2931 case CODEC_TYPE_AUDIO:
2932 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2933 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2934 channel_layout = enc->channel_layout;
2935 audio_channels = enc->channels;
2936 audio_sample_rate = enc->sample_rate;
2937 audio_sample_fmt = enc->sample_fmt;
2938 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2939 if(audio_disable)
2940 st->discard= AVDISCARD_ALL;
2941 break;
2942 case CODEC_TYPE_VIDEO:
2943 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2944 frame_height = enc->height;
2945 frame_width = enc->width;
2946 if(ic->streams[i]->sample_aspect_ratio.num)
2947 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2948 else
2949 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2950 frame_aspect_ratio *= (float) enc->width / enc->height;
2951 frame_pix_fmt = enc->pix_fmt;
2952 rfps = ic->streams[i]->r_frame_rate.num;
2953 rfps_base = ic->streams[i]->r_frame_rate.den;
2954 if(enc->lowres) {
2955 enc->flags |= CODEC_FLAG_EMU_EDGE;
2956 frame_height >>= enc->lowres;
2957 frame_width >>= enc->lowres;
2958 }
2959 if(me_threshold)
2960 enc->debug |= FF_DEBUG_MV;
2961
2962 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2963
2964 if (verbose >= 0)
2965 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2966 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2967
2968 (float)rfps / rfps_base, rfps, rfps_base);
2969 }
2970 /* update the current frame rate to match the stream frame rate */
2971 frame_rate.num = rfps;
2972 frame_rate.den = rfps_base;
2973
2974 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2975 if(video_disable)
2976 st->discard= AVDISCARD_ALL;
2977 else if(video_discard)
2978 st->discard= video_discard;
2979 break;
2980 case CODEC_TYPE_DATA:
2981 break;
2982 case CODEC_TYPE_SUBTITLE:
2983 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2984 if(subtitle_disable)
2985 st->discard = AVDISCARD_ALL;
2986 break;
2987 case CODEC_TYPE_ATTACHMENT:
2988 case CODEC_TYPE_UNKNOWN:
2989 nb_icodecs++;
2990 break;
2991 default:
2992 abort();
2993 }
2994 }
2995
2996 input_files[nb_input_files] = ic;
2997 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2998 /* dump the file content */
2999 if (verbose >= 0)
3000 dump_format(ic, nb_input_files, filename, 0);
3001
3002 nb_input_files++;
3003
3004 video_channel = 0;
3005
3006 av_freep(&video_codec_name);
3007 av_freep(&audio_codec_name);
3008 av_freep(&subtitle_codec_name);
3009 }
3010
3011 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3012 int *has_subtitle_ptr)
3013 {
3014 int has_video, has_audio, has_subtitle, i, j;
3015 AVFormatContext *ic;
3016
3017 has_video = 0;
3018 has_audio = 0;
3019 has_subtitle = 0;
3020 for(j=0;j<nb_input_files;j++) {
3021 ic = input_files[j];
3022 for(i=0;i<ic->nb_streams;i++) {
3023 AVCodecContext *enc = ic->streams[i]->codec;
3024 switch(enc->codec_type) {
3025 case CODEC_TYPE_AUDIO:
3026 has_audio = 1;
3027 break;
3028 case CODEC_TYPE_VIDEO:
3029 has_video = 1;
3030 break;
3031 case CODEC_TYPE_SUBTITLE:
3032 has_subtitle = 1;
3033 break;
3034 case CODEC_TYPE_DATA:
3035 case CODEC_TYPE_ATTACHMENT:
3036 case CODEC_TYPE_UNKNOWN:
3037 break;
3038 default:
3039 abort();
3040 }
3041 }
3042 }
3043 *has_video_ptr = has_video;
3044 *has_audio_ptr = has_audio;
3045 *has_subtitle_ptr = has_subtitle;
3046 }
3047
3048 static void new_video_stream(AVFormatContext *oc)
3049 {
3050 AVStream *st;
3051 AVCodecContext *video_enc;
3052 enum CodecID codec_id;
3053
3054 st = av_new_stream(oc, oc->nb_streams);
3055 if (!st) {
3056 fprintf(stderr, "Could not alloc stream\n");
3057 av_exit(1);
3058 }
3059 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3060 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3061 video_bitstream_filters= NULL;
3062
3063 if(thread_count>1)
3064 avcodec_thread_init(st->codec, thread_count);
3065
3066 video_enc = st->codec;
3067
3068 if(video_codec_tag)
3069 video_enc->codec_tag= video_codec_tag;
3070
3071 if( (video_global_header&1)
3072 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3073 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3074 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3075 }
3076 if(video_global_header&2){
3077 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3078 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3079 }
3080
3081 if (video_stream_copy) {
3082 st->stream_copy = 1;
3083 video_enc->codec_type = CODEC_TYPE_VIDEO;
3084 video_enc->sample_aspect_ratio =
3085 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3086 } else {
3087 const char *p;
3088 int i;
3089 AVCodec *codec;
3090 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3091
3092 if (video_codec_name) {
3093 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3094 codec = avcodec_find_encoder_by_name(video_codec_name);
3095 output_codecs[nb_ocodecs] = codec;
3096 } else {
3097 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3098 codec = avcodec_find_encoder(codec_id);
3099 }
3100
3101 video_enc->codec_id = codec_id;
3102
3103 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3104
3105 if (codec && codec->supported_framerates && !force_fps)
3106 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3107 video_enc->time_base.den = fps.num;
3108 video_enc->time_base.num = fps.den;
3109
3110 video_enc->width = frame_width + frame_padright + frame_padleft;
3111 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3112 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3113 video_enc->pix_fmt = frame_pix_fmt;
3114 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3115
3116 if(codec && codec->pix_fmts){
3117 const enum PixelFormat *p= codec->pix_fmts;
3118 for(; *p!=-1; p++){
3119 if(*p == video_enc->pix_fmt)
3120 break;
3121 }
3122 if(*p == -1)
3123 video_enc->pix_fmt = codec->pix_fmts[0];
3124 }
3125
3126 if (intra_only)
3127 video_enc->gop_size = 0;
3128 if (video_qscale || same_quality) {
3129 video_enc->flags |= CODEC_FLAG_QSCALE;
3130 video_enc->global_quality=
3131 st->quality = FF_QP2LAMBDA * video_qscale;
3132 }
3133
3134 if(intra_matrix)
3135 video_enc->intra_matrix = intra_matrix;
3136 if(inter_matrix)
3137 video_enc->inter_matrix = inter_matrix;
3138
3139 video_enc->thread_count = thread_count;
3140 p= video_rc_override_string;
3141 for(i=0; p; i++){
3142 int start, end, q;
3143 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3144 if(e!=3){
3145 fprintf(stderr, "error parsing rc_override\n");
3146 av_exit(1);
3147 }
3148 video_enc->rc_override=
3149 av_realloc(video_enc->rc_override,
3150 sizeof(RcOverride)*(i+1));
3151 video_enc->rc_override[i].start_frame= start;
3152 video_enc->rc_override[i].end_frame = end;
3153 if(q>0){
3154 video_enc->rc_override[i].qscale= q;
3155 video_enc->rc_override[i].quality_factor= 1.0;
3156 }
3157 else{
3158 video_enc->rc_override[i].qscale= 0;
3159 video_enc->rc_override[i].quality_factor= -q/100.0;
3160 }
3161 p= strchr(p, '/');
3162 if(p) p++;
3163 }
3164 video_enc->rc_override_count=i;
3165 if (!video_enc->rc_initial_buffer_occupancy)
3166 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3167 video_enc->me_threshold= me_threshold;
3168 video_enc->intra_dc_precision= intra_dc_precision - 8;
3169
3170 if (do_psnr)
3171 video_enc->flags|= CODEC_FLAG_PSNR;
3172
3173 /* two pass mode */
3174 if (do_pass) {
3175 if (do_pass == 1) {
3176 video_enc->flags |= CODEC_FLAG_PASS1;
3177 } else {
3178 video_enc->flags |= CODEC_FLAG_PASS2;
3179 }
3180 }
3181 }
3182 nb_ocodecs++;
3183 if (video_language) {
3184 av_metadata_set(&st->metadata, "language", video_language);
3185 av_freep(&video_language);
3186 }
3187
3188 /* reset some key parameters */
3189 video_disable = 0;
3190 av_freep(&video_codec_name);
3191 video_stream_copy = 0;
3192 }
3193
3194 static void new_audio_stream(AVFormatContext *oc)
3195 {
3196 AVStream *st;