projects / libav.git / blob
? search:


d5deacce9d3e6547ea7c937b97bdeaaa36695ab6
[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/pixdesc.h"
42 #include "libavutil/avstring.h"
43 #include "libavformat/os_support.h"
44
45 #if HAVE_SYS_RESOURCE_H
46 #include <sys/types.h>
47 #include <sys/time.h>
48 #include <sys/resource.h>
49 #elif HAVE_GETPROCESSTIMES
50 #include <windows.h>
51 #endif
52 #if HAVE_GETPROCESSMEMORYINFO
53 #include <windows.h>
54 #include <psapi.h>
55 #endif
56
57 #if HAVE_SYS_SELECT_H
58 #include <sys/select.h>
59 #endif
60
61 #if HAVE_TERMIOS_H
62 #include <fcntl.h>
63 #include <sys/ioctl.h>
64 #include <sys/time.h>
65 #include <termios.h>
66 #elif HAVE_CONIO_H
67 #include <conio.h>
68 #endif
69 #include <time.h>
70
71 #include "cmdutils.h"
72
73 #undef NDEBUG
74 #include <assert.h>
75
76 const char program_name[] = "FFmpeg";
77 const int program_birth_year = 2000;
78
79 /* select an input stream for an output stream */
80 typedef struct AVStreamMap {
81 int file_index;
82 int stream_index;
83 int sync_file_index;
84 int sync_stream_index;
85 } AVStreamMap;
86
87 /** select an input file for an output file */
88 typedef struct AVMetaDataMap {
89 int out_file;
90 int in_file;
91 } AVMetaDataMap;
92
93 static const OptionDef options[];
94
95 #define MAX_FILES 100
96
97 static const char *last_asked_format = NULL;
98 static AVFormatContext *input_files[MAX_FILES];
99 static int64_t input_files_ts_offset[MAX_FILES];
100 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
101 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
102 static int nb_input_files = 0;
103 static int nb_icodecs;
104
105 static AVFormatContext *output_files[MAX_FILES];
106 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
107 static int nb_output_files = 0;
108 static int nb_ocodecs;
109
110 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
111 static int nb_stream_maps;
112
113 static AVMetaDataMap meta_data_maps[MAX_FILES];
114 static int nb_meta_data_maps;
115
116 static int frame_width = 0;
117 static int frame_height = 0;
118 static float frame_aspect_ratio = 0;
119 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
120 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
121 static int frame_padtop = 0;
122 static int frame_padbottom = 0;
123 static int frame_padleft = 0;
124 static int frame_padright = 0;
125 static int padcolor[3] = {16,128,128}; /* default to black */
126 static int frame_topBand = 0;
127 static int frame_bottomBand = 0;
128 static int frame_leftBand = 0;
129 static int frame_rightBand = 0;
130 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
131 static AVRational frame_rate;
132 static float video_qscale = 0;
133 static uint16_t *intra_matrix = NULL;
134 static uint16_t *inter_matrix = NULL;
135 static const char *video_rc_override_string=NULL;
136 static int video_disable = 0;
137 static int video_discard = 0;
138 static char *video_codec_name = NULL;
139 static int video_codec_tag = 0;
140 static char *video_language = NULL;
141 static int same_quality = 0;
142 static int do_deinterlace = 0;
143 static int top_field_first = -1;
144 static int me_threshold = 0;
145 static int intra_dc_precision = 8;
146 static int loop_input = 0;
147 static int loop_output = AVFMT_NOOUTPUTLOOP;
148 static int qp_hist = 0;
149
150 static int intra_only = 0;
151 static int audio_sample_rate = 44100;
152 static int64_t channel_layout = 0;
153 #define QSCALE_NONE -99999
154 static float audio_qscale = QSCALE_NONE;
155 static int audio_disable = 0;
156 static int audio_channels = 1;
157 static char *audio_codec_name = NULL;
158 static int audio_codec_tag = 0;
159 static char *audio_language = NULL;
160
161 static int subtitle_disable = 0;
162 static char *subtitle_codec_name = NULL;
163 static char *subtitle_language = NULL;
164 static int subtitle_codec_tag = 0;
165
166 static float mux_preload= 0.5;
167 static float mux_max_delay= 0.7;
168
169 static int64_t recording_time = INT64_MAX;
170 static int64_t start_time = 0;
171 static int64_t rec_timestamp = 0;
172 static int64_t input_ts_offset = 0;
173 static int file_overwrite = 0;
174 static int metadata_count;
175 static AVMetadataTag *metadata;
176 static int do_benchmark = 0;
177 static int do_hex_dump = 0;
178 static int do_pkt_dump = 0;
179 static int do_psnr = 0;
180 static int do_pass = 0;
181 static char *pass_logfilename_prefix = NULL;
182 static int audio_stream_copy = 0;
183 static int video_stream_copy = 0;
184 static int subtitle_stream_copy = 0;
185 static int video_sync_method= -1;
186 static int audio_sync_method= 0;
187 static float audio_drift_threshold= 0.1;
188 static int copy_ts= 0;
189 static int opt_shortest = 0;
190 static int video_global_header = 0;
191 static char *vstats_filename;
192 static FILE *vstats_file;
193 static int opt_programid = 0;
194 static int copy_initial_nonkeyframes = 0;
195
196 static int rate_emu = 0;
197
198 static int video_channel = 0;
199 static char *video_standard;
200
201 static int audio_volume = 256;
202
203 static int exit_on_error = 0;
204 static int using_stdin = 0;
205 static int verbose = 1;
206 static int thread_count= 1;
207 static int q_pressed = 0;
208 static int64_t video_size = 0;
209 static int64_t audio_size = 0;
210 static int64_t extra_size = 0;
211 static int nb_frames_dup = 0;
212 static int nb_frames_drop = 0;
213 static int input_sync;
214 static uint64_t limit_filesize = 0;
215 static int force_fps = 0;
216
217 static int pgmyuv_compatibility_hack=0;
218 static float dts_delta_threshold = 10;
219
220 static unsigned int sws_flags = SWS_BICUBIC;
221
222 static int64_t timer_start;
223
224 static uint8_t *audio_buf;
225 static uint8_t *audio_out;
226 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
227
228 static short *samples;
229
230 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
231 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
232 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
234
235 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
236
237 struct AVInputStream;
238
239 typedef struct AVOutputStream {
240 int file_index; /* file index */
241 int index; /* stream index in the output file */
242 int source_index; /* AVInputStream index */
243 AVStream *st; /* stream in the output file */
244 int encoding_needed; /* true if encoding needed for this stream */
245 int frame_number;
246 /* input pts and corresponding output pts
247 for A/V sync */
248 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
249 struct AVInputStream *sync_ist; /* input stream to sync against */
250 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
251 /* video only */
252 int video_resample;
253 AVFrame pict_tmp; /* temporary image for resampling */
254 struct SwsContext *img_resample_ctx; /* for image resampling */
255 int resample_height;
256 int resample_width;
257 int resample_pix_fmt;
258
259 /* full frame size of first frame */
260 int original_height;
261 int original_width;
262
263 /* cropping area sizes */
264 int video_crop;
265 int topBand;
266 int bottomBand;
267 int leftBand;
268 int rightBand;
269
270 /* cropping area of first frame */
271 int original_topBand;
272 int original_bottomBand;
273 int original_leftBand;
274 int original_rightBand;
275
276 /* padding area sizes */
277 int video_pad;
278 int padtop;
279 int padbottom;
280 int padleft;
281 int padright;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 int reformat_pair;
287 AVAudioConvert *reformat_ctx;
288 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
289 FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293 int file_index;
294 int index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 int64_t sample_index; /* current sample */
299
300 int64_t start; /* time when read started */
301 int64_t next_pts; /* synthetic pts for cases where pkt.pts
302 is not defined */
303 int64_t pts; /* current pts */
304 int is_start; /* is 1 at the start and after a discontinuity */
305 int showed_multi_packet_warning;
306 int is_past_recording_time;
307 } AVInputStream;
308
309 typedef struct AVInputFile {
310 int eof_reached; /* true if eof reached */
311 int ist_index; /* index of first stream in ist_table */
312 int buffer_size; /* current total buffer size */
313 int nb_streams; /* nb streams we are aware of */
314 } AVInputFile;
315
316 #if HAVE_TERMIOS_H
317
318 /* init terminal so that we can grab keys */
319 static struct termios oldtty;
320 #endif
321
322 static void term_exit(void)
323 {
324 #if HAVE_TERMIOS_H
325 tcsetattr (0, TCSANOW, &oldtty);
326 #endif
327 }
328
329 static volatile int received_sigterm = 0;
330
331 static void
332 sigterm_handler(int sig)
333 {
334 received_sigterm = sig;
335 term_exit();
336 }
337
338 static void term_init(void)
339 {
340 #if HAVE_TERMIOS_H
341 struct termios tty;
342
343 tcgetattr (0, &tty);
344 oldtty = tty;
345
346 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
347 |INLCR|IGNCR|ICRNL|IXON);
348 tty.c_oflag |= OPOST;
349 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
350 tty.c_cflag &= ~(CSIZE|PARENB);
351 tty.c_cflag |= CS8;
352 tty.c_cc[VMIN] = 1;
353 tty.c_cc[VTIME] = 0;
354
355 tcsetattr (0, TCSANOW, &tty);
356 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
357 #endif
358
359 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
360 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
361 #ifdef SIGXCPU
362 signal(SIGXCPU, sigterm_handler);
363 #endif
364
365 /*
366 register a function to be called at normal program termination
367 */
368 atexit(term_exit);
369 #if CONFIG_BEOS_NETSERVER
370 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
371 #endif
372 }
373
374 /* read a key without blocking */
375 static int read_key(void)
376 {
377 #if HAVE_TERMIOS_H
378 int n = 1;
379 unsigned char ch;
380 #if !CONFIG_BEOS_NETSERVER
381 struct timeval tv;
382 fd_set rfds;
383
384 FD_ZERO(&rfds);
385 FD_SET(0, &rfds);
386 tv.tv_sec = 0;
387 tv.tv_usec = 0;
388 n = select(1, &rfds, NULL, NULL, &tv);
389 #endif
390 if (n > 0) {
391 n = read(0, &ch, 1);
392 if (n == 1)
393 return ch;
394
395 return n;
396 }
397 #elif HAVE_CONIO_H
398 if(kbhit())
399 return(getch());
400 #endif
401 return -1;
402 }
403
404 static int decode_interrupt_cb(void)
405 {
406 return q_pressed || (q_pressed = read_key() == 'q');
407 }
408
409 static int av_exit(int ret)
410 {
411 int i;
412
413 /* close files */
414 for(i=0;i<nb_output_files;i++) {
415 /* maybe av_close_output_file ??? */
416 AVFormatContext *s = output_files[i];
417 int j;
418 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
419 url_fclose(s->pb);
420 for(j=0;j<s->nb_streams;j++) {
421 av_metadata_free(&s->streams[j]->metadata);
422 av_free(s->streams[j]->codec);
423 av_free(s->streams[j]);
424 }
425 for(j=0;j<s->nb_programs;j++) {
426 av_metadata_free(&s->programs[j]->metadata);
427 }
428 for(j=0;j<s->nb_chapters;j++) {
429 av_metadata_free(&s->chapters[j]->metadata);
430 }
431 av_metadata_free(&s->metadata);
432 av_free(s);
433 }
434 for(i=0;i<nb_input_files;i++)
435 av_close_input_file(input_files[i]);
436
437 av_free(intra_matrix);
438 av_free(inter_matrix);
439
440 if (vstats_file)
441 fclose(vstats_file);
442 av_free(vstats_filename);
443
444 av_free(opt_names);
445
446 av_free(video_codec_name);
447 av_free(audio_codec_name);
448 av_free(subtitle_codec_name);
449
450 av_free(video_standard);
451
452 #if CONFIG_POWERPC_PERF
453 void powerpc_display_perf_report(void);
454 powerpc_display_perf_report();
455 #endif /* CONFIG_POWERPC_PERF */
456
457 for (i=0;i<CODEC_TYPE_NB;i++)
458 av_free(avcodec_opts[i]);
459 av_free(avformat_opts);
460 av_free(sws_opts);
461 av_free(audio_buf);
462 av_free(audio_out);
463 allocated_audio_buf_size= allocated_audio_out_size= 0;
464 av_free(samples);
465
466 if (received_sigterm) {
467 fprintf(stderr,
468 "Received signal %d: terminating.\n",
469 (int) received_sigterm);
470 exit (255);
471 }
472
473 exit(ret); /* not all OS-es handle main() return value */
474 return ret;
475 }
476
477 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
478 {
479 int i, err;
480 AVFormatContext *ic;
481 int nopts = 0;
482
483 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
484 if (err < 0)
485 return err;
486 /* copy stream format */
487 s->nb_streams = ic->nb_streams;
488 for(i=0;i<ic->nb_streams;i++) {
489 AVStream *st;
490
491 // FIXME: a more elegant solution is needed
492 st = av_mallocz(sizeof(AVStream));
493 memcpy(st, ic->streams[i], sizeof(AVStream));
494 st->codec = avcodec_alloc_context();
495 if (!st->codec) {
496 print_error(filename, AVERROR(ENOMEM));
497 av_exit(1);
498 }
499 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
500 s->streams[i] = st;
501
502 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
503 st->stream_copy = 1;
504 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
505 st->stream_copy = 1;
506
507 if(!st->codec->thread_count)
508 st->codec->thread_count = 1;
509 if(st->codec->thread_count>1)
510 avcodec_thread_init(st->codec, st->codec->thread_count);
511
512 if(st->codec->flags & CODEC_FLAG_BITEXACT)
513 nopts = 1;
514 }
515
516 if (!nopts)
517 s->timestamp = av_gettime();
518
519 av_close_input_file(ic);
520 return 0;
521 }
522
523 static double
524 get_sync_ipts(const AVOutputStream *ost)
525 {
526 const AVInputStream *ist = ost->sync_ist;
527 return (double)(ist->pts - start_time)/AV_TIME_BASE;
528 }
529
530 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
531 int ret;
532
533 while(bsfc){
534 AVPacket new_pkt= *pkt;
535 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
536 &new_pkt.data, &new_pkt.size,
537 pkt->data, pkt->size,
538 pkt->flags & PKT_FLAG_KEY);
539 if(a>0){
540 av_free_packet(pkt);
541 new_pkt.destruct= av_destruct_packet;
542 } else if(a<0){
543 fprintf(stderr, "%s failed for stream %d, codec %s",
544 bsfc->filter->name, pkt->stream_index,
545 avctx->codec ? avctx->codec->name : "copy");
546 print_error("", a);
547 if (exit_on_error)
548 av_exit(1);
549 }
550 *pkt= new_pkt;
551
552 bsfc= bsfc->next;
553 }
554
555 ret= av_interleaved_write_frame(s, pkt);
556 if(ret < 0){
557 print_error("av_interleaved_write_frame()", ret);
558 av_exit(1);
559 }
560 }
561
562 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
563
564 static void do_audio_out(AVFormatContext *s,
565 AVOutputStream *ost,
566 AVInputStream *ist,
567 unsigned char *buf, int size)
568 {
569 uint8_t *buftmp;
570 int64_t audio_out_size, audio_buf_size;
571 int64_t allocated_for_size= size;
572
573 int size_out, frame_bytes, ret;
574 AVCodecContext *enc= ost->st->codec;
575 AVCodecContext *dec= ist->st->codec;
576 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
577 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
578 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
579
580 need_realloc:
581 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
582 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
583 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
584 audio_buf_size*= osize*enc->channels;
585
586 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
587 if(coded_bps > 8*osize)
588 audio_out_size= audio_out_size * coded_bps / (8*osize);
589 audio_out_size += FF_MIN_BUFFER_SIZE;
590
591 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
592 fprintf(stderr, "Buffer sizes too large\n");
593 av_exit(1);
594 }
595
596 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
597 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
598 if (!audio_buf || !audio_out){
599 fprintf(stderr, "Out of memory in do_audio_out\n");
600 av_exit(1);
601 }
602
603 if (enc->channels != dec->channels)
604 ost->audio_resample = 1;
605
606 if (ost->audio_resample && !ost->resample) {
607 if (dec->sample_fmt != SAMPLE_FMT_S16)
608 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
609 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
610 enc->sample_rate, dec->sample_rate,
611 enc->sample_fmt, dec->sample_fmt,
612 16, 10, 0, 0.8);
613 if (!ost->resample) {
614 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
615 dec->channels, dec->sample_rate,
616 enc->channels, enc->sample_rate);
617 av_exit(1);
618 }
619 }
620
621 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
622 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
623 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
624 if (ost->reformat_ctx)
625 av_audio_convert_free(ost->reformat_ctx);
626 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
627 dec->sample_fmt, 1, NULL, 0);
628 if (!ost->reformat_ctx) {
629 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
630 avcodec_get_sample_fmt_name(dec->sample_fmt),
631 avcodec_get_sample_fmt_name(enc->sample_fmt));
632 av_exit(1);
633 }
634 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
635 }
636
637 if(audio_sync_method){
638 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
639 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
640 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
641 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
642
643 //FIXME resample delay
644 if(fabs(delta) > 50){
645 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
646 if(byte_delta < 0){
647 byte_delta= FFMAX(byte_delta, -size);
648 size += byte_delta;
649 buf -= byte_delta;
650 if(verbose > 2)
651 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
652 if(!size)
653 return;
654 ist->is_start=0;
655 }else{
656 static uint8_t *input_tmp= NULL;
657 input_tmp= av_realloc(input_tmp, byte_delta + size);
658
659 if(byte_delta > allocated_for_size - size){
660 allocated_for_size= byte_delta + (int64_t)size;
661 goto need_realloc;
662 }
663 ist->is_start=0;
664
665 memset(input_tmp, 0, byte_delta);
666 memcpy(input_tmp + byte_delta, buf, size);
667 buf= input_tmp;
668 size += byte_delta;
669 if(verbose > 2)
670 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
671 }
672 }else if(audio_sync_method>1){
673 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
674 assert(ost->audio_resample);
675 if(verbose > 2)
676 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
677 // 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));
678 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
679 }
680 }
681 }else
682 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
683 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
684
685 if (ost->audio_resample) {
686 buftmp = audio_buf;
687 size_out = audio_resample(ost->resample,
688 (short *)buftmp, (short *)buf,
689 size / (ist->st->codec->channels * isize));
690 size_out = size_out * enc->channels * osize;
691 } else {
692 buftmp = buf;
693 size_out = size;
694 }
695
696 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
697 const void *ibuf[6]= {buftmp};
698 void *obuf[6]= {audio_buf};
699 int istride[6]= {isize};
700 int ostride[6]= {osize};
701 int len= size_out/istride[0];
702 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
703 printf("av_audio_convert() failed\n");
704 if (exit_on_error)
705 av_exit(1);
706 return;
707 }
708 buftmp = audio_buf;
709 size_out = len*osize;
710 }
711
712 /* now encode as many frames as possible */
713 if (enc->frame_size > 1) {
714 /* output resampled raw samples */
715 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
716 fprintf(stderr, "av_fifo_realloc2() failed\n");
717 av_exit(1);
718 }
719 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
720
721 frame_bytes = enc->frame_size * osize * enc->channels;
722
723 while (av_fifo_size(ost->fifo) >= frame_bytes) {
724 AVPacket pkt;
725 av_init_packet(&pkt);
726
727 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
728
729 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
730
731 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
732 (short *)audio_buf);
733 if (ret < 0) {
734 fprintf(stderr, "Audio encoding failed\n");
735 av_exit(1);
736 }
737 audio_size += ret;
738 pkt.stream_index= ost->index;
739 pkt.data= audio_out;
740 pkt.size= ret;
741 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
742 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
743 pkt.flags |= PKT_FLAG_KEY;
744 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
745
746 ost->sync_opts += enc->frame_size;
747 }
748 } else {
749 AVPacket pkt;
750 av_init_packet(&pkt);
751
752 ost->sync_opts += size_out / (osize * enc->channels);
753
754 /* output a pcm frame */
755 /* determine the size of the coded buffer */
756 size_out /= osize;
757 if (coded_bps)
758 size_out = size_out*coded_bps/8;
759
760 if(size_out > audio_out_size){
761 fprintf(stderr, "Internal error, buffer size too small\n");
762 av_exit(1);
763 }
764
765 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
766 ret = avcodec_encode_audio(enc, audio_out, size_out,
767 (short *)buftmp);
768 if (ret < 0) {
769 fprintf(stderr, "Audio encoding failed\n");
770 av_exit(1);
771 }
772 audio_size += ret;
773 pkt.stream_index= ost->index;
774 pkt.data= audio_out;
775 pkt.size= ret;
776 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
777 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
778 pkt.flags |= PKT_FLAG_KEY;
779 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
780 }
781 }
782
783 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
784 {
785 AVCodecContext *dec;
786 AVPicture *picture2;
787 AVPicture picture_tmp;
788 uint8_t *buf = 0;
789
790 dec = ist->st->codec;
791
792 /* deinterlace : must be done before any resize */
793 if (do_deinterlace) {
794 int size;
795
796 /* create temporary picture */
797 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
798 buf = av_malloc(size);
799 if (!buf)
800 return;
801
802 picture2 = &picture_tmp;
803 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
804
805 if(avpicture_deinterlace(picture2, picture,
806 dec->pix_fmt, dec->width, dec->height) < 0) {
807 /* if error, do not deinterlace */
808 fprintf(stderr, "Deinterlacing failed\n");
809 av_free(buf);
810 buf = NULL;
811 picture2 = picture;
812 }
813 } else {
814 picture2 = picture;
815 }
816
817 if (picture != picture2)
818 *picture = *picture2;
819 *bufp = buf;
820 }
821
822 /* we begin to correct av delay at this threshold */
823 #define AV_DELAY_MAX 0.100
824
825 static void do_subtitle_out(AVFormatContext *s,
826 AVOutputStream *ost,
827 AVInputStream *ist,
828 AVSubtitle *sub,
829 int64_t pts)
830 {
831 static uint8_t *subtitle_out = NULL;
832 int subtitle_out_max_size = 1024 * 1024;
833 int subtitle_out_size, nb, i;
834 AVCodecContext *enc;
835 AVPacket pkt;
836
837 if (pts == AV_NOPTS_VALUE) {
838 fprintf(stderr, "Subtitle packets must have a pts\n");
839 if (exit_on_error)
840 av_exit(1);
841 return;
842 }
843
844 enc = ost->st->codec;
845
846 if (!subtitle_out) {
847 subtitle_out = av_malloc(subtitle_out_max_size);
848 }
849
850 /* Note: DVB subtitle need one packet to draw them and one other
851 packet to clear them */
852 /* XXX: signal it in the codec context ? */
853 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
854 nb = 2;
855 else
856 nb = 1;
857
858 for(i = 0; i < nb; i++) {
859 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
860 // start_display_time is required to be 0
861 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
862 sub->end_display_time -= sub->start_display_time;
863 sub->start_display_time = 0;
864 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
865 subtitle_out_max_size, sub);
866 if (subtitle_out_size < 0) {
867 fprintf(stderr, "Subtitle encoding failed\n");
868 av_exit(1);
869 }
870
871 av_init_packet(&pkt);
872 pkt.stream_index = ost->index;
873 pkt.data = subtitle_out;
874 pkt.size = subtitle_out_size;
875 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
876 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
877 /* XXX: the pts correction is handled here. Maybe handling
878 it in the codec would be better */
879 if (i == 0)
880 pkt.pts += 90 * sub->start_display_time;
881 else
882 pkt.pts += 90 * sub->end_display_time;
883 }
884 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
885 }
886 }
887
888 static int bit_buffer_size= 1024*256;
889 static uint8_t *bit_buffer= NULL;
890
891 static void do_video_out(AVFormatContext *s,
892 AVOutputStream *ost,
893 AVInputStream *ist,
894 AVFrame *in_picture,
895 int *frame_size)
896 {
897 int nb_frames, i, ret;
898 int64_t topBand, bottomBand, leftBand, rightBand;
899 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
900 AVFrame picture_crop_temp, picture_pad_temp;
901 AVCodecContext *enc, *dec;
902
903 avcodec_get_frame_defaults(&picture_crop_temp);
904 avcodec_get_frame_defaults(&picture_pad_temp);
905
906 enc = ost->st->codec;
907 dec = ist->st->codec;
908
909 /* by default, we output a single frame */
910 nb_frames = 1;
911
912 *frame_size = 0;
913
914 if(video_sync_method){
915 double vdelta;
916 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
917 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
918 if (vdelta < -1.1)
919 nb_frames = 0;
920 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
921 if(vdelta<=-0.6){
922 nb_frames=0;
923 }else if(vdelta>0.6)
924 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
925 }else if (vdelta > 1.1)
926 nb_frames = lrintf(vdelta);
927 //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);
928 if (nb_frames == 0){
929 ++nb_frames_drop;
930 if (verbose>2)
931 fprintf(stderr, "*** drop!\n");
932 }else if (nb_frames > 1) {
933 nb_frames_dup += nb_frames - 1;
934 if (verbose>2)
935 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
936 }
937 }else
938 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
939
940 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
941 if (nb_frames <= 0)
942 return;
943
944 if (ost->video_crop) {
945 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
946 fprintf(stderr, "error cropping picture\n");
947 if (exit_on_error)
948 av_exit(1);
949 return;
950 }
951 formatted_picture = &picture_crop_temp;
952 } else {
953 formatted_picture = in_picture;
954 }
955
956 final_picture = formatted_picture;
957 padding_src = formatted_picture;
958 resampling_dst = &ost->pict_tmp;
959 if (ost->video_pad) {
960 final_picture = &ost->pict_tmp;
961 if (ost->video_resample) {
962 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
963 fprintf(stderr, "error padding picture\n");
964 if (exit_on_error)
965 av_exit(1);
966 return;
967 }
968 resampling_dst = &picture_pad_temp;
969 }
970 }
971
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 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));
977 if(!ost->video_resample)
978 av_exit(1);
979 }
980
981 if (ost->video_resample) {
982 padding_src = NULL;
983 final_picture = &ost->pict_tmp;
984 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
985 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
986 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
987
988 /* keep bands proportional to the frame size */
989 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
990 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
991 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
992 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
993
994 /* sanity check to ensure no bad band sizes sneak in */
995 assert(topBand <= INT_MAX && topBand >= 0);
996 assert(bottomBand <= INT_MAX && bottomBand >= 0);
997 assert(leftBand <= INT_MAX && leftBand >= 0);
998 assert(rightBand <= INT_MAX && rightBand >= 0);
999
1000 ost->topBand = topBand;
1001 ost->bottomBand = bottomBand;
1002 ost->leftBand = leftBand;
1003 ost->rightBand = rightBand;
1004
1005 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1006 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1007 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1008
1009 /* initialize a new scaler context */
1010 sws_freeContext(ost->img_resample_ctx);
1011 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1012 ost->img_resample_ctx = sws_getContext(
1013 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1014 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1015 ist->st->codec->pix_fmt,
1016 ost->st->codec->width - (ost->padleft + ost->padright),
1017 ost->st->codec->height - (ost->padtop + ost->padbottom),
1018 ost->st->codec->pix_fmt,
1019 sws_flags, NULL, NULL, NULL);
1020 if (ost->img_resample_ctx == NULL) {
1021 fprintf(stderr, "Cannot get resampling context\n");
1022 av_exit(1);
1023 }
1024 }
1025 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1026 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1027 }
1028
1029 if (ost->video_pad) {
1030 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
1031 enc->height, enc->width, enc->pix_fmt,
1032 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
1033 }
1034
1035 /* duplicates frame if needed */
1036 for(i=0;i<nb_frames;i++) {
1037 AVPacket pkt;
1038 av_init_packet(&pkt);
1039 pkt.stream_index= ost->index;
1040
1041 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1042 /* raw pictures are written as AVPicture structure to
1043 avoid any copies. We support temorarily the older
1044 method. */
1045 AVFrame* old_frame = enc->coded_frame;
1046 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1047 pkt.data= (uint8_t *)final_picture;
1048 pkt.size= sizeof(AVPicture);
1049 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1050 pkt.flags |= PKT_FLAG_KEY;
1051
1052 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1053 enc->coded_frame = old_frame;
1054 } else {
1055 AVFrame big_picture;
1056
1057 big_picture= *final_picture;
1058 /* better than nothing: use input picture interlaced
1059 settings */
1060 big_picture.interlaced_frame = in_picture->interlaced_frame;
1061 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1062 if(top_field_first == -1)
1063 big_picture.top_field_first = in_picture->top_field_first;
1064 else
1065 big_picture.top_field_first = top_field_first;
1066 }
1067
1068 /* handles sameq here. This is not correct because it may
1069 not be a global option */
1070 if (same_quality) {
1071 big_picture.quality = ist->st->quality;
1072 }else
1073 big_picture.quality = ost->st->quality;
1074 if(!me_threshold)
1075 big_picture.pict_type = 0;
1076 // big_picture.pts = AV_NOPTS_VALUE;
1077 big_picture.pts= ost->sync_opts;
1078 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1079 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1080 ret = avcodec_encode_video(enc,
1081 bit_buffer, bit_buffer_size,
1082 &big_picture);
1083 if (ret < 0) {
1084 fprintf(stderr, "Video encoding failed\n");
1085 av_exit(1);
1086 }
1087
1088 if(ret>0){
1089 pkt.data= bit_buffer;
1090 pkt.size= ret;
1091 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1092 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1093 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1094 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1095 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1096
1097 if(enc->coded_frame->key_frame)
1098 pkt.flags |= PKT_FLAG_KEY;
1099 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1100 *frame_size = ret;
1101 video_size += ret;
1102 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1103 // enc->frame_number-1, ret, enc->pict_type);
1104 /* if two pass, output log */
1105 if (ost->logfile && enc->stats_out) {
1106 fprintf(ost->logfile, "%s", enc->stats_out);
1107 }
1108 }
1109 }
1110 ost->sync_opts++;
1111 ost->frame_number++;
1112 }
1113 }
1114
1115 static double psnr(double d){
1116 return -10.0*log(d)/log(10.0);
1117 }
1118
1119 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1120 int frame_size)
1121 {
1122 AVCodecContext *enc;
1123 int frame_number;
1124 double ti1, bitrate, avg_bitrate;
1125
1126 /* this is executed just the first time do_video_stats is called */
1127 if (!vstats_file) {
1128 vstats_file = fopen(vstats_filename, "w");
1129 if (!vstats_file) {
1130 perror("fopen");
1131 av_exit(1);
1132 }
1133 }
1134
1135 enc = ost->st->codec;
1136 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1137 frame_number = ost->frame_number;
1138 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1139 if (enc->flags&CODEC_FLAG_PSNR)
1140 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1141
1142 fprintf(vstats_file,"f_size= %6d ", frame_size);
1143 /* compute pts value */
1144 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1145 if (ti1 < 0.01)
1146 ti1 = 0.01;
1147
1148 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1149 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1150 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1151 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1152 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1153 }
1154 }
1155
1156 static void print_report(AVFormatContext **output_files,
1157 AVOutputStream **ost_table, int nb_ostreams,
1158 int is_last_report)
1159 {
1160 char buf[1024];
1161 AVOutputStream *ost;
1162 AVFormatContext *oc;
1163 int64_t total_size;
1164 AVCodecContext *enc;
1165 int frame_number, vid, i;
1166 double bitrate, ti1, pts;
1167 static int64_t last_time = -1;
1168 static int qp_histogram[52];
1169
1170 if (!is_last_report) {
1171 int64_t cur_time;
1172 /* display the report every 0.5 seconds */
1173 cur_time = av_gettime();
1174 if (last_time == -1) {
1175 last_time = cur_time;
1176 return;
1177 }
1178 if ((cur_time - last_time) < 500000)
1179 return;
1180 last_time = cur_time;
1181 }
1182
1183
1184 oc = output_files[0];
1185
1186 total_size = url_fsize(oc->pb);
1187 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1188 total_size= url_ftell(oc->pb);
1189
1190 buf[0] = '\0';
1191 ti1 = 1e10;
1192 vid = 0;
1193 for(i=0;i<nb_ostreams;i++) {
1194 ost = ost_table[i];
1195 enc = ost->st->codec;
1196 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1197 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1198 !ost->st->stream_copy ?
1199 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1200 }
1201 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1202 float t = (av_gettime()-timer_start) / 1000000.0;
1203
1204 frame_number = ost->frame_number;
1205 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1206 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1207 !ost->st->stream_copy ?
1208 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1209 if(is_last_report)
1210 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1211 if(qp_hist){
1212 int j;
1213 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1214 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1215 qp_histogram[qp]++;
1216 for(j=0; j<32; j++)
1217 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1218 }
1219 if (enc->flags&CODEC_FLAG_PSNR){
1220 int j;
1221 double error, error_sum=0;
1222 double scale, scale_sum=0;
1223 char type[3]= {'Y','U','V'};
1224 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1225 for(j=0; j<3; j++){
1226 if(is_last_report){
1227 error= enc->error[j];
1228 scale= enc->width*enc->height*255.0*255.0*frame_number;
1229 }else{
1230 error= enc->coded_frame->error[j];
1231 scale= enc->width*enc->height*255.0*255.0;
1232 }
1233 if(j) scale/=4;
1234 error_sum += error;
1235 scale_sum += scale;
1236 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1237 }
1238 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1239 }
1240 vid = 1;
1241 }
1242 /* compute min output value */
1243 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1244 if ((pts < ti1) && (pts > 0))
1245 ti1 = pts;
1246 }
1247 if (ti1 < 0.01)
1248 ti1 = 0.01;
1249
1250 if (verbose || is_last_report) {
1251 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1252
1253 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1254 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1255 (double)total_size / 1024, ti1, bitrate);
1256
1257 if (nb_frames_dup || nb_frames_drop)
1258 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1259 nb_frames_dup, nb_frames_drop);
1260
1261 if (verbose >= 0)
1262 fprintf(stderr, "%s \r", buf);
1263
1264 fflush(stderr);
1265 }
1266
1267 if (is_last_report && verbose >= 0){
1268 int64_t raw= audio_size + video_size + extra_size;
1269 fprintf(stderr, "\n");
1270 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1271 video_size/1024.0,
1272 audio_size/1024.0,
1273 extra_size/1024.0,
1274 100.0*(total_size - raw)/raw
1275 );
1276 }
1277 }
1278
1279 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1280 static int output_packet(AVInputStream *ist, int ist_index,
1281 AVOutputStream **ost_table, int nb_ostreams,
1282 const AVPacket *pkt)
1283 {
1284 AVFormatContext *os;
1285 AVOutputStream *ost;
1286 int ret, i;
1287 int got_picture;
1288 AVFrame picture;
1289 void *buffer_to_free;
1290 static unsigned int samples_size= 0;
1291 AVSubtitle subtitle, *subtitle_to_free;
1292 int got_subtitle;
1293 AVPacket avpkt;
1294 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1295
1296 if(ist->next_pts == AV_NOPTS_VALUE)
1297 ist->next_pts= ist->pts;
1298
1299 if (pkt == NULL) {
1300 /* EOF handling */
1301 av_init_packet(&avpkt);
1302 avpkt.data = NULL;
1303 avpkt.size = 0;
1304 goto handle_eof;
1305 } else {
1306 avpkt = *pkt;
1307 }
1308
1309 if(pkt->dts != AV_NOPTS_VALUE)
1310 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1311
1312 //while we have more to decode or while the decoder did output something on EOF
1313 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1314 uint8_t *data_buf, *decoded_data_buf;
1315 int data_size, decoded_data_size;
1316 handle_eof:
1317 ist->pts= ist->next_pts;
1318
1319 if(avpkt.size && avpkt.size != pkt->size &&
1320 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1321 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1322 ist->showed_multi_packet_warning=1;
1323 }
1324
1325 /* decode the packet if needed */
1326 decoded_data_buf = NULL; /* fail safe */
1327 decoded_data_size= 0;
1328 data_buf = avpkt.data;
1329 data_size = avpkt.size;
1330 subtitle_to_free = NULL;
1331 if (ist->decoding_needed) {
1332 switch(ist->st->codec->codec_type) {
1333 case CODEC_TYPE_AUDIO:{
1334 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1335 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1336 av_free(samples);
1337 samples= av_malloc(samples_size);
1338 }
1339 decoded_data_size= samples_size;
1340 /* XXX: could avoid copy if PCM 16 bits with same
1341 endianness as CPU */
1342 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1343 &avpkt);
1344 if (ret < 0)
1345 goto fail_decode;
1346 avpkt.data += ret;
1347 avpkt.size -= ret;
1348 data_size = ret;
1349 /* Some bug in mpeg audio decoder gives */
1350 /* decoded_data_size < 0, it seems they are overflows */
1351 if (decoded_data_size <= 0) {
1352 /* no audio frame */
1353 continue;
1354 }
1355 decoded_data_buf = (uint8_t *)samples;
1356 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1357 (ist->st->codec->sample_rate * ist->st->codec->channels);
1358 break;}
1359 case CODEC_TYPE_VIDEO:
1360 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1361 /* XXX: allocate picture correctly */
1362 avcodec_get_frame_defaults(&picture);
1363
1364 ret = avcodec_decode_video2(ist->st->codec,
1365 &picture, &got_picture, &avpkt);
1366 ist->st->quality= picture.quality;
1367 if (ret < 0)
1368 goto fail_decode;
1369 if (!got_picture) {
1370 /* no picture yet */
1371 goto discard_packet;
1372 }
1373 if (ist->st->codec->time_base.num != 0) {
1374 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1375 ist->next_pts += ((int64_t)AV_TIME_BASE *
1376 ist->st->codec->time_base.num * ticks) /
1377 ist->st->codec->time_base.den;
1378 }
1379 avpkt.size = 0;
1380 break;
1381 case CODEC_TYPE_SUBTITLE:
1382 ret = avcodec_decode_subtitle2(ist->st->codec,
1383 &subtitle, &got_subtitle, &avpkt);
1384 if (ret < 0)
1385 goto fail_decode;
1386 if (!got_subtitle) {
1387 goto discard_packet;
1388 }
1389 subtitle_to_free = &subtitle;
1390 avpkt.size = 0;
1391 break;
1392 default:
1393 goto fail_decode;
1394 }
1395 } else {
1396 switch(ist->st->codec->codec_type) {
1397 case CODEC_TYPE_AUDIO:
1398 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1399 ist->st->codec->sample_rate;
1400 break;
1401 case CODEC_TYPE_VIDEO:
1402 if (ist->st->codec->time_base.num != 0) {
1403 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1404 ist->next_pts += ((int64_t)AV_TIME_BASE *
1405 ist->st->codec->time_base.num * ticks) /
1406 ist->st->codec->time_base.den;
1407 }
1408 break;
1409 }
1410 ret = avpkt.size;
1411 avpkt.size = 0;
1412 }
1413
1414 buffer_to_free = NULL;
1415 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1416 pre_process_video_frame(ist, (AVPicture *)&picture,
1417 &buffer_to_free);
1418 }
1419
1420 // preprocess audio (volume)
1421 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1422 if (audio_volume != 256) {
1423 short *volp;
1424 volp = samples;
1425 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1426 int v = ((*volp) * audio_volume + 128) >> 8;
1427 if (v < -32768) v = -32768;
1428 if (v > 32767) v = 32767;
1429 *volp++ = v;
1430 }
1431 }
1432 }
1433
1434 /* frame rate emulation */
1435 if (rate_emu) {
1436 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1437 int64_t now = av_gettime() - ist->start;
1438 if (pts > now)
1439 usleep(pts - now);
1440 }
1441
1442 /* if output time reached then transcode raw format,
1443 encode packets and output them */
1444 if (start_time == 0 || ist->pts >= start_time)
1445 for(i=0;i<nb_ostreams;i++) {
1446 int frame_size;
1447
1448 ost = ost_table[i];
1449 if (ost->source_index == ist_index) {
1450 os = output_files[ost->file_index];
1451
1452 /* set the input output pts pairs */
1453 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1454
1455 if (ost->encoding_needed) {
1456 assert(ist->decoding_needed);
1457 switch(ost->st->codec->codec_type) {
1458 case CODEC_TYPE_AUDIO:
1459 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1460 break;
1461 case CODEC_TYPE_VIDEO:
1462 do_video_out(os, ost, ist, &picture, &frame_size);
1463 if (vstats_filename && frame_size)
1464 do_video_stats(os, ost, frame_size);
1465 break;
1466 case CODEC_TYPE_SUBTITLE:
1467 do_subtitle_out(os, ost, ist, &subtitle,
1468 pkt->pts);
1469 break;
1470 default:
1471 abort();
1472 }
1473 } else {
1474 AVFrame avframe; //FIXME/XXX remove this
1475 AVPacket opkt;
1476 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1477
1478 av_init_packet(&opkt);
1479
1480 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1481 continue;
1482
1483 /* no reencoding needed : output the packet directly */
1484 /* force the input stream PTS */
1485
1486 avcodec_get_frame_defaults(&avframe);
1487 ost->st->codec->coded_frame= &avframe;
1488 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1489
1490 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1491 audio_size += data_size;
1492 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1493 video_size += data_size;
1494 ost->sync_opts++;
1495 }
1496
1497 opkt.stream_index= ost->index;
1498 if(pkt->pts != AV_NOPTS_VALUE)
1499 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1500 else
1501 opkt.pts= AV_NOPTS_VALUE;
1502
1503 if (pkt->dts == AV_NOPTS_VALUE)
1504 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1505 else
1506 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1507 opkt.dts -= ost_tb_start_time;
1508
1509 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1510 opkt.flags= pkt->flags;
1511
1512 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1513 if( ost->st->codec->codec_id != CODEC_ID_H264
1514 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1515 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1516 ) {
1517 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1518 opkt.destruct= av_destruct_packet;
1519 } else {
1520 opkt.data = data_buf;
1521 opkt.size = data_size;
1522 }
1523
1524 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1525 ost->st->codec->frame_number++;
1526 ost->frame_number++;
1527 av_free_packet(&opkt);
1528 }
1529 }
1530 }
1531 av_free(buffer_to_free);
1532 /* XXX: allocate the subtitles in the codec ? */
1533 if (subtitle_to_free) {
1534 if (subtitle_to_free->rects != NULL) {
1535 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1536 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1537 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1538 av_freep(&subtitle_to_free->rects[i]);
1539 }
1540 av_freep(&subtitle_to_free->rects);
1541 }
1542 subtitle_to_free->num_rects = 0;
1543 subtitle_to_free = NULL;
1544 }
1545 }
1546 discard_packet:
1547 if (pkt == NULL) {
1548 /* EOF handling */
1549
1550 for(i=0;i<nb_ostreams;i++) {
1551 ost = ost_table[i];
1552 if (ost->source_index == ist_index) {
1553 AVCodecContext *enc= ost->st->codec;
1554 os = output_files[ost->file_index];
1555
1556 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1557 continue;
1558 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1559 continue;
1560
1561 if (ost->encoding_needed) {
1562 for(;;) {
1563 AVPacket pkt;
1564 int fifo_bytes;
1565 av_init_packet(&pkt);
1566 pkt.stream_index= ost->index;
1567
1568 switch(ost->st->codec->codec_type) {
1569 case CODEC_TYPE_AUDIO:
1570 fifo_bytes = av_fifo_size(ost->fifo);
1571 ret = 0;
1572 /* encode any samples remaining in fifo */
1573 if (fifo_bytes > 0) {
1574 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1575 int fs_tmp = enc->frame_size;
1576
1577 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1578 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1579 enc->frame_size = fifo_bytes / (osize * enc->channels);
1580 } else { /* pad */
1581 int frame_bytes = enc->frame_size*osize*enc->channels;
1582 if (samples_size < frame_bytes)
1583 av_exit(1);
1584 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1585 }
1586
1587 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1588 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1589 ost->st->time_base.num, enc->sample_rate);
1590 enc->frame_size = fs_tmp;
1591 }
1592 if(ret <= 0) {
1593 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1594 }
1595 if (ret < 0) {
1596 fprintf(stderr, "Audio encoding failed\n");
1597 av_exit(1);
1598 }
1599 audio_size += ret;
1600 pkt.flags |= PKT_FLAG_KEY;
1601 break;
1602 case CODEC_TYPE_VIDEO:
1603 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1604 if (ret < 0) {
1605 fprintf(stderr, "Video encoding failed\n");
1606 av_exit(1);
1607 }
1608 video_size += ret;
1609 if(enc->coded_frame && enc->coded_frame->key_frame)
1610 pkt.flags |= PKT_FLAG_KEY;
1611 if (ost->logfile && enc->stats_out) {
1612 fprintf(ost->logfile, "%s", enc->stats_out);
1613 }
1614 break;
1615 default:
1616 ret=-1;
1617 }
1618
1619 if(ret<=0)
1620 break;
1621 pkt.data= bit_buffer;
1622 pkt.size= ret;
1623 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1624 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1625 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1626 }
1627 }
1628 }
1629 }
1630 }
1631
1632 return 0;
1633 fail_decode:
1634 return -1;
1635 }
1636
1637 static void print_sdp(AVFormatContext **avc, int n)
1638 {
1639 char sdp[2048];
1640
1641 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1642 printf("SDP:\n%s\n", sdp);
1643 fflush(stdout);
1644 }
1645
1646 /*
1647 * The following code is the main loop of the file converter
1648 */
1649 static int av_encode(AVFormatContext **output_files,
1650 int nb_output_files,
1651 AVFormatContext **input_files,
1652 int nb_input_files,
1653 AVStreamMap *stream_maps, int nb_stream_maps)
1654 {
1655 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1656 AVFormatContext *is, *os;
1657 AVCodecContext *codec, *icodec;
1658 AVOutputStream *ost, **ost_table = NULL;
1659 AVInputStream *ist, **ist_table = NULL;
1660 AVInputFile *file_table;
1661 char error[1024];
1662 int key;
1663 int want_sdp = 1;
1664 uint8_t no_packet[MAX_FILES]={0};
1665 int no_packet_count=0;
1666
1667 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1668 if (!file_table)
1669 goto fail;
1670
1671 /* input stream init */
1672 j = 0;
1673 for(i=0;i<nb_input_files;i++) {
1674 is = input_files[i];
1675 file_table[i].ist_index = j;
1676 file_table[i].nb_streams = is->nb_streams;
1677 j += is->nb_streams;
1678 }
1679 nb_istreams = j;
1680
1681 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1682 if (!ist_table)
1683 goto fail;
1684
1685 for(i=0;i<nb_istreams;i++) {
1686 ist = av_mallocz(sizeof(AVInputStream));
1687 if (!ist)
1688 goto fail;
1689 ist_table[i] = ist;
1690 }
1691 j = 0;
1692 for(i=0;i<nb_input_files;i++) {
1693 is = input_files[i];
1694 for(k=0;k<is->nb_streams;k++) {
1695 ist = ist_table[j++];
1696 ist->st = is->streams[k];
1697 ist->file_index = i;
1698 ist->index = k;
1699 ist->discard = 1; /* the stream is discarded by default
1700 (changed later) */
1701
1702 if (rate_emu) {
1703 ist->start = av_gettime();
1704 }
1705 }
1706 }
1707
1708 /* output stream init */
1709 nb_ostreams = 0;
1710 for(i=0;i<nb_output_files;i++) {
1711 os = output_files[i];
1712 if (!os->nb_streams) {
1713 dump_format(output_files[i], i, output_files[i]->filename, 1);
1714 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1715 av_exit(1);
1716 }
1717 nb_ostreams += os->nb_streams;
1718 }
1719 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1720 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1721 av_exit(1);
1722 }
1723
1724 /* Sanity check the mapping args -- do the input files & streams exist? */
1725 for(i=0;i<nb_stream_maps;i++) {
1726 int fi = stream_maps[i].file_index;
1727 int si = stream_maps[i].stream_index;
1728
1729 if (fi < 0 || fi > nb_input_files - 1 ||
1730 si < 0 || si > file_table[fi].nb_streams - 1) {
1731 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1732 av_exit(1);
1733 }
1734 fi = stream_maps[i].sync_file_index;
1735 si = stream_maps[i].sync_stream_index;
1736 if (fi < 0 || fi > nb_input_files - 1 ||
1737 si < 0 || si > file_table[fi].nb_streams - 1) {
1738 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1739 av_exit(1);
1740 }
1741 }
1742
1743 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1744 if (!ost_table)
1745 goto fail;
1746 for(i=0;i<nb_ostreams;i++) {
1747 ost = av_mallocz(sizeof(AVOutputStream));
1748 if (!ost)
1749 goto fail;
1750 ost_table[i] = ost;
1751 }
1752
1753 n = 0;
1754 for(k=0;k<nb_output_files;k++) {
1755 os = output_files[k];
1756 for(i=0;i<os->nb_streams;i++,n++) {
1757 int found;
1758 ost = ost_table[n];
1759 ost->file_index = k;
1760 ost->index = i;
1761 ost->st = os->streams[i];
1762 if (nb_stream_maps > 0) {
1763 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1764 stream_maps[n].stream_index;
1765
1766 /* Sanity check that the stream types match */
1767 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1768 int i= ost->file_index;
1769 dump_format(output_files[i], i, output_files[i]->filename, 1);
1770 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1771 stream_maps[n].file_index, stream_maps[n].stream_index,
1772 ost->file_index, ost->index);
1773 av_exit(1);
1774 }
1775
1776 } else {
1777 int best_nb_frames=-1;
1778 /* get corresponding input stream index : we select the first one with the right type */
1779 found = 0;
1780 for(j=0;j<nb_istreams;j++) {
1781 int skip=0;
1782 ist = ist_table[j];
1783 if(opt_programid){
1784 int pi,si;
1785 AVFormatContext *f= input_files[ ist->file_index ];
1786 skip=1;
1787 for(pi=0; pi<f->nb_programs; pi++){
1788 AVProgram *p= f->programs[pi];
1789 if(p->id == opt_programid)
1790 for(si=0; si<p->nb_stream_indexes; si++){
1791 if(f->streams[ p->stream_index[si] ] == ist->st)
1792 skip=0;
1793 }
1794 }
1795 }
1796 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
1797 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1798 if(best_nb_frames < ist->st->codec_info_nb_frames){
1799 best_nb_frames= ist->st->codec_info_nb_frames;
1800 ost->source_index = j;
1801 found = 1;
1802 }
1803 }
1804 }
1805
1806 if (!found) {
1807 if(! opt_programid) {
1808 /* try again and reuse existing stream */
1809 for(j=0;j<nb_istreams;j++) {
1810 ist = ist_table[j];
1811 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
1812 && ist->st->discard != AVDISCARD_ALL) {
1813 ost->source_index = j;
1814 found = 1;
1815 }
1816 }
1817 }
1818 if (!found) {
1819 int i= ost->file_index;
1820 dump_format(output_files[i], i, output_files[i]->filename, 1);
1821 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1822 ost->file_index, ost->index);
1823 av_exit(1);
1824 }
1825 }
1826 }
1827 ist = ist_table[ost->source_index];
1828 ist->discard = 0;
1829 ost->sync_ist = (nb_stream_maps > 0) ?
1830 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1831 stream_maps[n].sync_stream_index] : ist;
1832 }
1833 }
1834
1835 /* for each output stream, we compute the right encoding parameters */
1836 for(i=0;i<nb_ostreams;i++) {
1837 AVMetadataTag *t = NULL, *lang = NULL;
1838 ost = ost_table[i];
1839 os = output_files[ost->file_index];
1840 ist = ist_table[ost->source_index];
1841
1842 codec = ost->st->codec;
1843 icodec = ist->st->codec;
1844
1845 if (av_metadata_get(ist->st->metadata, "language", NULL, 0))
1846 lang = av_metadata_get(ost->st->metadata, "language", NULL, 0);
1847 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
1848 if (lang && !strcmp(t->key, "language"))
1849 continue;
1850 av_metadata_set2(&ost->st->metadata, t->key, t->value, 0);
1851 }
1852
1853 ost->st->disposition = ist->st->disposition;
1854 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1855 codec->chroma_sample_location = icodec->chroma_sample_location;
1856
1857 if (ost->st->stream_copy) {
1858 /* if stream_copy is selected, no need to decode or encode */
1859 codec->codec_id = icodec->codec_id;
1860 codec->codec_type = icodec->codec_type;
1861
1862 if(!codec->codec_tag){
1863 if( !os->oformat->codec_tag
1864 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1865 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1866 codec->codec_tag = icodec->codec_tag;
1867 }
1868
1869 codec->bit_rate = icodec->bit_rate;
1870 codec->extradata= icodec->extradata;
1871 codec->extradata_size= icodec->extradata_size;
1872 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
1873 codec->time_base = icodec->time_base;
1874 codec->time_base.num *= icodec->ticks_per_frame;
1875 }else
1876 codec->time_base = ist->st->time_base;
1877 switch(codec->codec_type) {
1878 case CODEC_TYPE_AUDIO:
1879 if(audio_volume != 256) {
1880 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1881 av_exit(1);
1882 }
1883 codec->channel_layout = icodec->channel_layout;
1884 codec->sample_rate = icodec->sample_rate;
1885 codec->channels = icodec->channels;
1886 codec->frame_size = icodec->frame_size;
1887 codec->block_align= icodec->block_align;
1888 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1889 codec->block_align= 0;
1890 if(codec->codec_id == CODEC_ID_AC3)
1891 codec->block_align= 0;
1892 break;
1893 case CODEC_TYPE_VIDEO:
1894 codec->pix_fmt = icodec->pix_fmt;
1895 codec->width = icodec->width;
1896 codec->height = icodec->height;
1897 codec->has_b_frames = icodec->has_b_frames;
1898 break;
1899 case CODEC_TYPE_SUBTITLE:
1900 codec->width = icodec->width;
1901 codec->height = icodec->height;
1902 break;
1903 default:
1904 abort();
1905 }
1906 } else {
1907 switch(codec->codec_type) {
1908 case CODEC_TYPE_AUDIO:
1909 ost->fifo= av_fifo_alloc(1024);
1910 if(!ost->fifo)
1911 goto fail;
1912 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1913 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1914 icodec->request_channels = codec->channels;
1915 ist->decoding_needed = 1;
1916 ost->encoding_needed = 1;
1917 break;
1918 case CODEC_TYPE_VIDEO:
1919 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1920 fprintf(stderr, "Video pixel format is unknown, stream cannot be decoded\n");
1921 av_exit(1);
1922 }
1923 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1924 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1925 ost->video_resample = ((codec->width != icodec->width -
1926 (frame_leftBand + frame_rightBand) +
1927 (frame_padleft + frame_padright)) ||
1928 (codec->height != icodec->height -
1929 (frame_topBand + frame_bottomBand) +
1930 (frame_padtop + frame_padbottom)) ||
1931 (codec->pix_fmt != icodec->pix_fmt));
1932 if (ost->video_crop) {
1933 ost->topBand = ost->original_topBand = frame_topBand;
1934 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
1935 ost->leftBand = ost->original_leftBand = frame_leftBand;
1936 ost->rightBand = ost->original_rightBand = frame_rightBand;
1937 }
1938 if (ost->video_pad) {
1939 ost->padtop = frame_padtop;
1940 ost->padleft = frame_padleft;
1941 ost->padbottom = frame_padbottom;
1942 ost->padright = frame_padright;
1943 if (!ost->video_resample) {
1944 avcodec_get_frame_defaults(&ost->pict_tmp);
1945 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1946 codec->width, codec->height))
1947 goto fail;
1948 }
1949 }
1950 if (ost->video_resample) {
1951 avcodec_get_frame_defaults(&ost->pict_tmp);
1952 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1953 codec->width, codec->height)) {
1954 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1955 av_exit(1);
1956 }
1957 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1958 ost->img_resample_ctx = sws_getContext(
1959 icodec->width - (frame_leftBand + frame_rightBand),
1960 icodec->height - (frame_topBand + frame_bottomBand),
1961 icodec->pix_fmt,
1962 codec->width - (frame_padleft + frame_padright),
1963 codec->height - (frame_padtop + frame_padbottom),
1964 codec->pix_fmt,
1965 sws_flags, NULL, NULL, NULL);
1966 if (ost->img_resample_ctx == NULL) {
1967 fprintf(stderr, "Cannot get resampling context\n");
1968 av_exit(1);
1969 }
1970
1971 ost->original_height = icodec->height;
1972 ost->original_width = icodec->width;
1973
1974 codec->bits_per_raw_sample= 0;
1975 }
1976 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1977 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
1978 ost->resample_pix_fmt= icodec->pix_fmt;
1979 ost->encoding_needed = 1;
1980 ist->decoding_needed = 1;
1981 break;
1982 case CODEC_TYPE_SUBTITLE:
1983 ost->encoding_needed = 1;
1984 ist->decoding_needed = 1;
1985 break;
1986 default:
1987 abort();
1988 break;
1989 }
1990 /* two pass mode */
1991 if (ost->encoding_needed &&
1992 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1993 char logfilename[1024];
1994 FILE *f;
1995 int size;
1996 char *logbuffer;
1997
1998 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1999 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2000 i);
2001 if (codec->flags & CODEC_FLAG_PASS1) {
2002 f = fopen(logfilename, "w");
2003 if (!f) {
2004 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2005 av_exit(1);
2006 }
2007 ost->logfile = f;
2008 } else {
2009 /* read the log file */
2010 f = fopen(logfilename, "r");
2011 if (!f) {
2012 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
2013 av_exit(1);
2014 }
2015 fseek(f, 0, SEEK_END);
2016 size = ftell(f);
2017 fseek(f, 0, SEEK_SET);
2018 logbuffer = av_malloc(size + 1);
2019 if (!logbuffer) {
2020 fprintf(stderr, "Could not allocate log buffer\n");
2021 av_exit(1);
2022 }
2023 size = fread(logbuffer, 1, size, f);
2024 fclose(f);
2025 logbuffer[size] = '\0';
2026 codec->stats_in = logbuffer;
2027 }
2028 }
2029 }
2030 if(codec->codec_type == CODEC_TYPE_VIDEO){
2031 int size= codec->width * codec->height;
2032 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2033 }
2034 }
2035
2036 if (!bit_buffer)
2037 bit_buffer = av_malloc(bit_buffer_size);
2038 if (!bit_buffer) {
2039 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2040 bit_buffer_size);
2041 ret = AVERROR(ENOMEM);
2042 goto fail;
2043 }
2044
2045 /* open each encoder */
2046 for(i=0;i<nb_ostreams;i++) {
2047 ost = ost_table[i];
2048 if (ost->encoding_needed) {
2049 AVCodec *codec = output_codecs[i];
2050 if (!codec)
2051 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2052 if (!codec) {
2053 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2054 ost->st->codec->codec_id, ost->file_index, ost->index);
2055 ret = AVERROR(EINVAL);
2056 goto dump_format;
2057 }
2058 if (avcodec_open(ost->st->codec, codec) < 0) {
2059 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2060 ost->file_index, ost->index);
2061 ret = AVERROR(EINVAL);
2062 goto dump_format;
2063 }
2064 extra_size += ost->st->codec->extradata_size;
2065 }
2066 }
2067
2068 /* open each decoder */
2069 for(i=0;i<nb_istreams;i++) {
2070 ist = ist_table[i];
2071 if (ist->decoding_needed) {
2072 AVCodec *codec = input_codecs[i];
2073 if (!codec)
2074 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2075 if (!codec) {
2076 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2077 ist->st->codec->codec_id, ist->file_index, ist->index);
2078 ret = AVERROR(EINVAL);
2079 goto dump_format;
2080 }
2081 if (avcodec_open(ist->st->codec, codec) < 0) {
2082 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2083 ist->file_index, ist->index);
2084 ret = AVERROR(EINVAL);
2085 goto dump_format;
2086 }
2087 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
2088 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2089 }
2090 }
2091
2092 /* init pts */
2093 for(i=0;i<nb_istreams;i++) {
2094 AVStream *st;
2095 ist = ist_table[i];
2096 st= ist->st;
2097 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2098 ist->next_pts = AV_NOPTS_VALUE;
2099 ist->is_start = 1;
2100 }
2101
2102 /* set meta data information from input file if required */
2103 for (i=0;i<nb_meta_data_maps;i++) {
2104 AVFormatContext *out_file;
2105 AVFormatContext *in_file;
2106 AVMetadataTag *mtag;
2107
2108 int out_file_index = meta_data_maps[i].out_file;
2109 int in_file_index = meta_data_maps[i].in_file;
2110 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2111 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2112 out_file_index, out_file_index, in_file_index);
2113 ret = AVERROR(EINVAL);
2114 goto dump_format;
2115 }
2116 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2117 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2118 in_file_index, out_file_index, in_file_index);
2119 ret = AVERROR(EINVAL);
2120 goto dump_format;
2121 }
2122
2123 out_file = output_files[out_file_index];
2124 in_file = input_files[in_file_index];
2125
2126
2127 mtag=NULL;
2128 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2129 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
2130 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2131 in_file->iformat->metadata_conv);
2132 }
2133
2134 /* open files and write file headers */
2135 for(i=0;i<nb_output_files;i++) {
2136 os = output_files[i];
2137 if (av_write_header(os) < 0) {
2138 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2139 ret = AVERROR(EINVAL);
2140 goto dump_format;
2141 }
2142 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2143 want_sdp = 0;
2144 }
2145 }
2146
2147 dump_format:
2148 /* dump the file output parameters - cannot be done before in case
2149 of stream copy */
2150 for(i=0;i<nb_output_files;i++) {
2151 dump_format(output_files[i], i, output_files[i]->filename, 1);
2152 }
2153
2154 /* dump the stream mapping */
2155 if (verbose >= 0) {
2156 fprintf(stderr, "Stream mapping:\n");
2157 for(i=0;i<nb_ostreams;i++) {
2158 ost = ost_table[i];
2159 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2160 ist_table[ost->source_index]->file_index,
2161 ist_table[ost->source_index]->index,
2162 ost->file_index,
2163 ost->index);
2164 if (ost->sync_ist != ist_table[ost->source_index])
2165 fprintf(stderr, " [sync #%d.%d]",
2166 ost->sync_ist->file_index,
2167 ost->sync_ist->index);
2168 fprintf(stderr, "\n");
2169 }
2170 }
2171
2172 if (ret) {
2173 fprintf(stderr, "%s\n", error);
2174 goto fail;
2175 }
2176
2177 if (want_sdp) {
2178 print_sdp(output_files, nb_output_files);
2179 }
2180
2181 if (!using_stdin && verbose >= 0) {
2182 fprintf(stderr, "Press [q] to stop encoding\n");
2183 url_set_interrupt_cb(decode_interrupt_cb);
2184 }
2185 term_init();
2186
2187 timer_start = av_gettime();
2188
2189 for(; received_sigterm == 0;) {
2190 int file_index, ist_index;
2191 AVPacket pkt;
2192 double ipts_min;
2193 double opts_min;
2194
2195 redo:
2196 ipts_min= 1e100;
2197 opts_min= 1e100;
2198 /* if 'q' pressed, exits */
2199 if (!using_stdin) {
2200 if (q_pressed)
2201 break;
2202 /* read_key() returns 0 on EOF */
2203 key = read_key();
2204 if (key == 'q')
2205 break;
2206 }
2207
2208 /* select the stream that we must read now by looking at the
2209 smallest output pts */
2210 file_index = -1;
2211 for(i=0;i<nb_ostreams;i++) {
2212 double ipts, opts;
2213 ost = ost_table[i];
2214 os = output_files[ost->file_index];
2215 ist = ist_table[ost->source_index];
2216 if(ist->is_past_recording_time || no_packet[ist->file_index])
2217 continue;
2218 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2219 ipts = (double)ist->pts;
2220 if (!file_table[ist->file_index].eof_reached){
2221 if(ipts < ipts_min) {
2222 ipts_min = ipts;
2223 if(input_sync ) file_index = ist->file_index;
2224 }
2225 if(opts < opts_min) {
2226 opts_min = opts;
2227 if(!input_sync) file_index = ist->file_index;
2228 }
2229 }
2230 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2231 file_index= -1;
2232 break;
2233 }
2234 }
2235 /* if none, if is finished */
2236 if (file_index < 0) {
2237 if(no_packet_count){
2238 no_packet_count=0;
2239 memset(no_packet, 0, sizeof(no_packet));
2240 usleep(10000);
2241 continue;
2242 }
2243 break;
2244 }
2245
2246 /* finish if limit size exhausted */
2247 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2248 break;
2249
2250 /* read a frame from it and output it in the fifo */
2251 is = input_files[file_index];
2252 ret= av_read_frame(is, &pkt);
2253 if(ret == AVERROR(EAGAIN)){
2254 no_packet[file_index]=1;
2255 no_packet_count++;
2256 continue;
2257 }
2258 if (ret < 0) {
2259 file_table[file_index].eof_reached = 1;
2260 if (opt_shortest)
2261 break;
2262 else
2263 continue;
2264 }
2265
2266 no_packet_count=0;
2267 memset(no_packet, 0, sizeof(no_packet));
2268
2269 if (do_pkt_dump) {
2270 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2271 }
2272 /* the following test is needed in case new streams appear
2273 dynamically in stream : we ignore them */
2274 if (pkt.stream_index >= file_table[file_index].nb_streams)
2275 goto discard_packet;
2276 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2277 ist = ist_table[ist_index];
2278 if (ist->discard)
2279 goto discard_packet;
2280
2281 if (pkt.dts != AV_NOPTS_VALUE)
2282 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2283 if (pkt.pts != AV_NOPTS_VALUE)
2284 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2285
2286 if(input_files_ts_scale[file_index][pkt.stream_index]){
2287 if(pkt.pts != AV_NOPTS_VALUE)
2288 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2289 if(pkt.dts != AV_NOPTS_VALUE)
2290 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2291 }
2292
2293 // 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);
2294 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2295 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2296 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2297 int64_t delta= pkt_dts - ist->next_pts;
2298 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2299 input_files_ts_offset[ist->file_index]-= delta;
2300 if (verbose > 2)
2301 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2302 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2303 if(pkt.pts != AV_NOPTS_VALUE)
2304 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2305 }
2306 }
2307
2308 /* finish if recording time exhausted */
2309 if (recording_time != INT64_MAX &&
2310 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2311 ist->is_past_recording_time = 1;
2312 goto discard_packet;
2313 }
2314
2315 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2316 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2317
2318 if (verbose >= 0)
2319 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2320 ist->file_index, ist->index);
2321 if (exit_on_error)
2322 av_exit(1);
2323 av_free_packet(&pkt);
2324 goto redo;
2325 }
2326
2327 discard_packet:
2328 av_free_packet(&pkt);
2329
2330 /* dump report by using the output first video and audio streams */
2331 print_report(output_files, ost_table, nb_ostreams, 0);
2332 }
2333
2334 /* at the end of stream, we must flush the decoder buffers */
2335 for(i=0;i<nb_istreams;i++) {
2336 ist = ist_table[i];
2337 if (ist->decoding_needed) {
2338 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2339 }
2340 }
2341
2342 term_exit();
2343
2344 /* write the trailer if needed and close file */
2345 for(i=0;i<nb_output_files;i++) {
2346 os = output_files[i];
2347 av_write_trailer(os);
2348 }
2349
2350 /* dump report by using the first video and audio streams */
2351 print_report(output_files, ost_table, nb_ostreams, 1);
2352
2353 /* close each encoder */
2354 for(i=0;i<nb_ostreams;i++) {
2355 ost = ost_table[i];
2356 if (ost->encoding_needed) {
2357 av_freep(&ost->st->codec->stats_in);
2358 avcodec_close(ost->st->codec);
2359 }
2360 }
2361
2362 /* close each decoder */
2363 for(i=0;i<nb_istreams;i++) {
2364 ist = ist_table[i];
2365 if (ist->decoding_needed) {
2366 avcodec_close(ist->st->codec);
2367 }
2368 }
2369
2370 /* finished ! */
2371 ret = 0;
2372
2373 fail:
2374 av_freep(&bit_buffer);
2375 av_free(file_table);
2376
2377 if (ist_table) {
2378 for(i=0;i<nb_istreams;i++) {
2379 ist = ist_table[i];
2380 av_free(ist);
2381 }
2382 av_free(ist_table);
2383 }
2384 if (ost_table) {
2385 for(i=0;i<nb_ostreams;i++) {
2386 ost = ost_table[i];
2387 if (ost) {
2388 if (ost->logfile) {
2389 fclose(ost->logfile);
2390 ost->logfile = NULL;
2391 }
2392 av_fifo_free(ost->fifo); /* works even if fifo is not
2393 initialized but set to zero */
2394 av_free(ost->pict_tmp.data[0]);
2395 if (ost->video_resample)
2396 sws_freeContext(ost->img_resample_ctx);
2397 if (ost->resample)
2398 audio_resample_close(ost->resample);
2399 if (ost->reformat_ctx)
2400 av_audio_convert_free(ost->reformat_ctx);
2401 av_free(ost);
2402 }
2403 }
2404 av_free(ost_table);
2405 }
2406 return ret;
2407 }
2408
2409 static void opt_format(const char *arg)
2410 {
2411 /* compatibility stuff for pgmyuv */
2412 if (!strcmp(arg, "pgmyuv")) {
2413 pgmyuv_compatibility_hack=1;
2414 // opt_image_format(arg);
2415 arg = "image2";
2416 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2417 }
2418
2419 last_asked_format = arg;
2420 }
2421
2422 static void opt_video_rc_override_string(const char *arg)
2423 {
2424 video_rc_override_string = arg;
2425 }
2426
2427 static int opt_me_threshold(const char *opt, const char *arg)
2428 {
2429 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2430 return 0;
2431 }
2432
2433 static int opt_verbose(const char *opt, const char *arg)
2434 {
2435 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2436 return 0;
2437 }
2438
2439 static int opt_frame_rate(const char *opt, const char *arg)
2440 {
2441 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2442 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2443 av_exit(1);
2444 }
2445 return 0;
2446 }
2447
2448 static int opt_bitrate(const char *opt, const char *arg)
2449 {
2450 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2451
2452 opt_default(opt, arg);
2453
2454 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2455 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2456
2457 return 0;
2458 }
2459
2460 static void opt_frame_crop_top(const char *arg)
2461 {
2462 frame_topBand = atoi(arg);
2463 if (frame_topBand < 0) {
2464 fprintf(stderr, "Incorrect top crop size\n");
2465 av_exit(1);
2466 }
2467 if ((frame_topBand) >= frame_height){
2468 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2469 av_exit(1);
2470 }
2471 frame_height -= frame_topBand;
2472 }
2473
2474 static void opt_frame_crop_bottom(const char *arg)
2475 {
2476 frame_bottomBand = atoi(arg);
2477 if (frame_bottomBand < 0) {
2478 fprintf(stderr, "Incorrect bottom crop size\n");
2479 av_exit(1);
2480 }
2481 if ((frame_bottomBand) >= frame_height){
2482 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2483 av_exit(1);
2484 }
2485 frame_height -= frame_bottomBand;
2486 }
2487
2488 static void opt_frame_crop_left(const char *arg)
2489 {
2490 frame_leftBand = atoi(arg);
2491 if (frame_leftBand < 0) {
2492 fprintf(stderr, "Incorrect left crop size\n");
2493 av_exit(1);
2494 }
2495 if ((frame_leftBand) >= frame_width){
2496 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2497 av_exit(1);
2498 }
2499 frame_width -= frame_leftBand;
2500 }
2501
2502 static void opt_frame_crop_right(const char *arg)
2503 {
2504 frame_rightBand = atoi(arg);
2505 if (frame_rightBand < 0) {
2506 fprintf(stderr, "Incorrect right crop size\n");
2507 av_exit(1);
2508 }
2509 if ((frame_rightBand) >= frame_width){
2510 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2511 av_exit(1);
2512 }
2513 frame_width -= frame_rightBand;
2514 }
2515
2516 static void opt_frame_size(const char *arg)
2517 {
2518 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2519 fprintf(stderr, "Incorrect frame size\n");
2520 av_exit(1);
2521 }
2522 }
2523
2524 static void opt_pad_color(const char *arg) {
2525 /* Input is expected to be six hex digits similar to
2526 how colors are expressed in html tags (but without the #) */
2527 int rgb = strtol(arg, NULL, 16);
2528 int r,g,b;
2529
2530 r = (rgb >> 16);
2531 g = ((rgb >> 8) & 255);
2532 b = (rgb & 255);
2533
2534 padcolor[0] = RGB_TO_Y(r,g,b);
2535 padcolor[1] = RGB_TO_U(r,g,b,0);
2536 padcolor[2] = RGB_TO_V(r,g,b,0);
2537 }
2538
2539 static void opt_frame_pad_top(const char *arg)
2540 {
2541 frame_padtop = atoi(arg);
2542 if (frame_padtop < 0) {
2543 fprintf(stderr, "Incorrect top pad size\n");
2544 av_exit(1);
2545 }
2546 }
2547
2548 static void opt_frame_pad_bottom(const char *arg)
2549 {
2550 frame_padbottom = atoi(arg);
2551 if (frame_padbottom < 0) {
2552 fprintf(stderr, "Incorrect bottom pad size\n");
2553 av_exit(1);
2554 }
2555 }
2556
2557
2558 static void opt_frame_pad_left(const char *arg)
2559 {
2560 frame_padleft = atoi(arg);
2561 if (frame_padleft < 0) {
2562 fprintf(stderr, "Incorrect left pad size\n");
2563 av_exit(1);
2564 }
2565 }
2566
2567
2568 static void opt_frame_pad_right(const char *arg)
2569 {
2570 frame_padright = atoi(arg);
2571 if (frame_padright < 0) {
2572 fprintf(stderr, "Incorrect right pad size\n");
2573 av_exit(1);
2574 }
2575 }
2576
2577 static void opt_frame_pix_fmt(const char *arg)
2578 {
2579 if (strcmp(arg, "list")) {
2580 frame_pix_fmt = av_get_pix_fmt(arg);
2581 if (frame_pix_fmt == PIX_FMT_NONE) {
2582 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2583 av_exit(1);
2584 }
2585 } else {
2586 show_pix_fmts();
2587 av_exit(0);
2588 }
2589 }
2590
2591 static void opt_frame_aspect_ratio(const char *arg)
2592 {
2593 int x = 0, y = 0;
2594 double ar = 0;
2595 const char *p;
2596 char *end;
2597
2598 p = strchr(arg, ':');
2599 if (p) {
2600 x = strtol(arg, &end, 10);
2601 if (end == p)
2602 y = strtol(end+1, &end, 10);
2603 if (x > 0 && y > 0)
2604 ar = (double)x / (double)y;
2605 } else
2606 ar = strtod(arg, NULL);
2607
2608 if (!ar) {
2609 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2610 av_exit(1);
2611 }
2612 frame_aspect_ratio = ar;
2613 }
2614
2615 static int opt_metadata(const char *opt, const char *arg)
2616 {
2617 char *mid= strchr(arg, '=');
2618
2619 if(!mid){
2620 fprintf(stderr, "Missing =\n");
2621 av_exit(1);
2622 }
2623 *mid++= 0;
2624
2625 metadata_count++;
2626 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2627 metadata[metadata_count-1].key = av_strdup(arg);
2628 metadata[metadata_count-1].value= av_strdup(mid);
2629
2630 return 0;
2631 }
2632
2633 static void opt_qscale(const char *arg)
2634 {
2635 video_qscale = atof(arg);
2636 if (video_qscale <= 0 ||
2637 video_qscale > 255) {
2638 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2639 av_exit(1);
2640 }
2641 }
2642
2643 static void opt_top_field_first(const char *arg)
2644 {
2645 top_field_first= atoi(arg);
2646 }
2647
2648 static int opt_thread_count(const char *opt, const char *arg)
2649 {
2650 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2651 #if !HAVE_THREADS
2652 if (verbose >= 0)
2653 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2654 #endif
2655 return 0;
2656 }
2657
2658 static void opt_audio_sample_fmt(const char *arg)
2659 {
2660 if (strcmp(arg, "list"))
2661 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2662 else {
2663 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2664 av_exit(0);
2665 }
2666 }
2667
2668 static int opt_audio_rate(const char *opt, const char *arg)
2669 {
2670 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2671 return 0;
2672 }
2673
2674 static int opt_audio_channels(const char *opt, const char *arg)
2675 {
2676 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2677 return 0;
2678 }
2679
2680 static void opt_video_channel(const char *arg)
2681 {
2682 video_channel = strtol(arg, NULL, 0);
2683 }
2684
2685 static void opt_video_standard(const char *arg)
2686 {
2687 video_standard = av_strdup(arg);
2688 }
2689
2690 static void opt_codec(int *pstream_copy, char **pcodec_name,
2691 int codec_type, const char *arg)
2692 {
2693 av_freep(pcodec_name);
2694 if (!strcmp(arg, "copy")) {
2695 *pstream_copy = 1;
2696 } else {
2697 *pcodec_name = av_strdup(arg);
2698 }
2699 }
2700
2701 static void opt_audio_codec(const char *arg)
2702 {
2703 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2704 }
2705
2706 static void opt_audio_tag(const char *arg)
2707 {
2708 char *tail;
2709 audio_codec_tag= strtol(arg, &tail, 0);
2710
2711 if(!tail || *tail)
2712 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2713 }
2714
2715 static void opt_video_tag(const char *arg)
2716 {
2717 char *tail;
2718 video_codec_tag= strtol(arg, &tail, 0);
2719
2720 if(!tail || *tail)
2721 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2722 }
2723
2724 static void opt_video_codec(const char *arg)
2725 {
2726 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2727 }
2728
2729 static void opt_subtitle_codec(const char *arg)
2730 {
2731 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2732 }
2733
2734 static void opt_subtitle_tag(const char *arg)
2735 {
2736 char *tail;
2737 subtitle_codec_tag= strtol(arg, &tail, 0);
2738
2739 if(!tail || *tail)
2740 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2741 }
2742
2743 static void opt_map(const char *arg)
2744 {
2745 AVStreamMap *m;
2746 char *p;
2747
2748 m = &stream_maps[nb_stream_maps++];
2749
2750 m->file_index = strtol(arg, &p, 0);
2751 if (*p)
2752 p++;
2753
2754 m->stream_index = strtol(p, &p, 0);
2755 if (*p) {
2756 p++;
2757 m->sync_file_index = strtol(p, &p, 0);
2758 if (*p)
2759 p++;
2760 m->sync_stream_index = strtol(p, &p, 0);
2761 } else {
2762 m->sync_file_index = m->file_index;
2763 m->sync_stream_index = m->stream_index;
2764 }
2765 }
2766
2767 static void opt_map_meta_data(const char *arg)
2768 {
2769 AVMetaDataMap *m;
2770 char *p;
2771
2772 m = &meta_data_maps[nb_meta_data_maps++];
2773
2774 m->out_file = strtol(arg, &p, 0);
2775 if (*p)
2776 p++;
2777
2778 m->in_file = strtol(p, &p, 0);
2779 }
2780
2781 static void opt_input_ts_scale(const char *arg)
2782 {
2783 unsigned int stream;
2784 double scale;
2785 char *p;
2786
2787 stream = strtol(arg, &p, 0);
2788 if (*p)
2789 p++;
2790 scale= strtod(p, &p);
2791
2792 if(stream >= MAX_STREAMS)
2793 av_exit(1);
2794
2795 input_files_ts_scale[nb_input_files][stream]= scale;
2796 }
2797
2798 static int opt_recording_time(const char *opt, const char *arg)
2799 {
2800 recording_time = parse_time_or_die(opt, arg, 1);
2801 return 0;
2802 }
2803
2804 static int opt_start_time(const char *opt, const char *arg)
2805 {
2806 start_time = parse_time_or_die(opt, arg, 1);
2807 return 0;
2808 }
2809
2810 static int opt_rec_timestamp(const char *opt, const char *arg)
2811 {
2812 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2813 return 0;
2814 }
2815
2816 static int opt_input_ts_offset(const char *opt, const char *arg)
2817 {
2818 input_ts_offset = parse_time_or_die(opt, arg, 1);
2819 return 0;
2820 }
2821
2822 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2823 {
2824 const char *codec_string = encoder ? "encoder" : "decoder";
2825 AVCodec *codec;
2826
2827 if(!name)
2828 return CODEC_ID_NONE;
2829 codec = encoder ?
2830 avcodec_find_encoder_by_name(name) :
2831 avcodec_find_decoder_by_name(name);
2832 if(!codec) {
2833 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2834 av_exit(1);
2835 }
2836 if(codec->type != type) {
2837 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2838 av_exit(1);
2839 }
2840 return codec->id;
2841 }
2842
2843 static void opt_input_file(const char *filename)
2844 {
2845 AVFormatContext *ic;
2846 AVFormatParameters params, *ap = &params;
2847 AVInputFormat *file_iformat = NULL;
2848 int err, i, ret, rfps, rfps_base;
2849 int64_t timestamp;
2850
2851 if (last_asked_format) {
2852 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2853 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2854 av_exit(1);
2855 }
2856 last_asked_format = NULL;
2857 }
2858
2859 if (!strcmp(filename, "-"))
2860 filename = "pipe:";
2861
2862 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2863 !strcmp(filename, "/dev/stdin");
2864
2865 /* get default parameters from command line */
2866 ic = avformat_alloc_context();
2867 if (!ic) {
2868 print_error(filename, AVERROR(ENOMEM));
2869 av_exit(1);
2870 }
2871
2872 memset(ap, 0, sizeof(*ap));
2873 ap->prealloced_context = 1;
2874 ap->sample_rate = audio_sample_rate;
2875 ap->channels = audio_channels;
2876 ap->time_base.den = frame_rate.num;
2877 ap->time_base.num = frame_rate.den;
2878 ap->width = frame_width + frame_padleft + frame_padright;
2879 ap->height = frame_height + frame_padtop + frame_padbottom;
2880 ap->pix_fmt = frame_pix_fmt;
2881 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2882 ap->channel = video_channel;
2883 ap->standard = video_standard;
2884
2885 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2886
2887 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2888 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2889 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2890 ic->flags |= AVFMT_FLAG_NONBLOCK;
2891
2892 if(pgmyuv_compatibility_hack)
2893 ic->video_codec_id= CODEC_ID_PGMYUV;
2894
2895 /* open the input file with generic libav function */
2896 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2897 if (err < 0) {
2898 print_error(filename, err);
2899 av_exit(1);
2900 }
2901 if(opt_programid) {
2902 int i, j;
2903 int found=0;
2904 for(i=0; i<ic->nb_streams; i++){
2905 ic->streams[i]->discard= AVDISCARD_ALL;
2906 }
2907 for(i=0; i<ic->nb_programs; i++){
2908 AVProgram *p= ic->programs[i];
2909 if(p->id != opt_programid){
2910 p->discard = AVDISCARD_ALL;
2911 }else{
2912 found=1;
2913 for(j=0; j<p->nb_stream_indexes; j++){
2914 ic->streams[p->stream_index[j]]->discard= 0;
2915 }
2916 }
2917 }
2918 if(!found){
2919 fprintf(stderr, "Specified program id not found\n");
2920 av_exit(1);
2921 }
2922 opt_programid=0;
2923 }
2924
2925 ic->loop_input = loop_input;
2926
2927 /* If not enough info to get the stream parameters, we decode the
2928 first frames to get it. (used in mpeg case for example) */
2929 ret = av_find_stream_info(ic);
2930 if (ret < 0 && verbose >= 0) {
2931 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2932 av_exit(1);
2933 }
2934
2935 timestamp = start_time;
2936 /* add the stream start time */
2937 if (ic->start_time != AV_NOPTS_VALUE)
2938 timestamp += ic->start_time;
2939
2940 /* if seeking requested, we execute it */
2941 if (start_time != 0) {
2942 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2943 if (ret < 0) {
2944 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2945 filename, (double)timestamp / AV_TIME_BASE);
2946 }
2947 /* reset seek info */
2948 start_time = 0;
2949 }
2950
2951 /* update the current parameters so that they match the one of the input stream */
2952 for(i=0;i<ic->nb_streams;i++) {
2953 AVStream *st = ic->streams[i];
2954 AVCodecContext *enc = st->codec;
2955 avcodec_thread_init(enc, thread_count);
2956 switch(enc->codec_type) {
2957 case CODEC_TYPE_AUDIO:
2958 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2959 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2960 channel_layout = enc->channel_layout;
2961 audio_channels = enc->channels;
2962 audio_sample_rate = enc->sample_rate;
2963 audio_sample_fmt = enc->sample_fmt;
2964 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2965 if(audio_disable)
2966 st->discard= AVDISCARD_ALL;
2967 break;
2968 case CODEC_TYPE_VIDEO:
2969 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2970 frame_height = enc->height;
2971 frame_width = enc->width;
2972 if(ic->streams[i]->sample_aspect_ratio.num)
2973 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2974 else
2975 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2976 frame_aspect_ratio *= (float) enc->width / enc->height;
2977 frame_pix_fmt = enc->pix_fmt;
2978 rfps = ic->streams[i]->r_frame_rate.num;
2979 rfps_base = ic->streams[i]->r_frame_rate.den;
2980 if(enc->lowres) {
2981 enc->flags |= CODEC_FLAG_EMU_EDGE;
2982 frame_height >>= enc->lowres;
2983 frame_width >>= enc->lowres;
2984 }
2985 if(me_threshold)
2986 enc->debug |= FF_DEBUG_MV;
2987
2988 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2989
2990 if (verbose >= 0)
2991 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2992 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2993
2994 (float)rfps / rfps_base, rfps, rfps_base);
2995 }
2996 /* update the current frame rate to match the stream frame rate */
2997 frame_rate.num = rfps;
2998 frame_rate.den = rfps_base;
2999
3000 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3001 if(video_disable)
3002 st->discard= AVDISCARD_ALL;
3003 else if(video_discard)
3004 st->discard= video_discard;
3005 break;
3006 case CODEC_TYPE_DATA:
3007 break;
3008 case CODEC_TYPE_SUBTITLE:
3009 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3010 if(subtitle_disable)
3011 st->discard = AVDISCARD_ALL;
3012 break;
3013 case CODEC_TYPE_ATTACHMENT:
3014 case CODEC_TYPE_UNKNOWN:
3015 nb_icodecs++;
3016 break;
3017 default:
3018 abort();
3019 }
3020 }
3021
3022 input_files[nb_input_files] = ic;
3023 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3024 /* dump the file content */
3025 if (verbose >= 0)
3026 dump_format(ic, nb_input_files, filename, 0);
3027
3028 nb_input_files++;
3029
3030 video_channel = 0;
3031
3032 av_freep(&video_codec_name);
3033 av_freep(&audio_codec_name);
3034 av_freep(&subtitle_codec_name);
3035 }
3036
3037 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3038 int *has_subtitle_ptr)
3039 {
3040 int has_video, has_audio, has_subtitle, i, j;
3041 AVFormatContext *ic;
3042
3043 has_video = 0;
3044 has_audio = 0;
3045 has_subtitle = 0;
3046 for(j=0;j<nb_input_files;j++) {
3047 ic = input_files[j];
3048 for(i=0;i<ic->nb_streams;i++) {
3049 AVCodecContext *enc = ic->streams[i]->codec;
3050 switch(enc->codec_type) {
3051 case CODEC_TYPE_AUDIO:
3052 has_audio = 1;
3053 break;
3054 case CODEC_TYPE_VIDEO:
3055 has_video = 1;
3056 break;
3057 case CODEC_TYPE_SUBTITLE:
3058 has_subtitle = 1;
3059 break;
3060 case CODEC_TYPE_DATA:
3061 case CODEC_TYPE_ATTACHMENT:
3062 case CODEC_TYPE_UNKNOWN:
3063 break;
3064 default:
3065 abort();
3066 }
3067 }
3068 }
3069 *has_video_ptr = has_video;
3070 *has_audio_ptr = has_audio;
3071 *has_subtitle_ptr = has_subtitle;
3072 }
3073
3074 static void new_video_stream(AVFormatContext *oc)
3075 {
3076 AVStream *st;
3077 AVCodecContext *video_enc;
3078 enum CodecID codec_id;
3079
3080 st = av_new_stream(oc, oc->nb_streams);
3081 if (!st) {
3082 fprintf(stderr, "Could not alloc stream\n");
3083 av_exit(1);
3084 }
3085 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3086 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3087 video_bitstream_filters= NULL;
3088
3089 avcodec_thread_init(st->codec, thread_count);
3090
3091 video_enc = st->codec;
3092
3093 if(video_codec_tag)
3094 video_enc->codec_tag= video_codec_tag;
3095
3096 if( (video_global_header&1)
3097 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3098 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3099 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3100 }
3101 if(video_global_header&2){
3102 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3103 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3104 }
3105
3106 if (video_stream_copy) {
3107 st->stream_copy = 1;
3108 video_enc->codec_type = CODEC_TYPE_VIDEO;
3109 video_enc->sample_aspect_ratio =
3110 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3111 } else {
3112 const char *p;
3113 int i;
3114 AVCodec *codec;
3115 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3116
3117 if (video_codec_name) {
3118 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3119 codec = avcodec_find_encoder_by_name(video_codec_name);
3120 output_codecs[nb_ocodecs] = codec;
3121 } else {
3122 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3123 codec = avcodec_find_encoder(codec_id);
3124 }
3125
3126 video_enc->codec_id = codec_id;
3127
3128 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3129
3130 if (codec && codec->supported_framerates && !force_fps)
3131 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3132 video_enc->time_base.den = fps.num;
3133 video_enc->time_base.num = fps.den;
3134
3135 video_enc->width = frame_width + frame_padright + frame_padleft;
3136 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3137 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3138 video_enc->pix_fmt = frame_pix_fmt;
3139 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3140
3141 if(codec && codec->pix_fmts){
3142 const enum PixelFormat *p= codec->pix_fmts;
3143 for(; *p!=-1; p++){
3144 if(*p == video_enc->pix_fmt)
3145 break;
3146 }
3147 if(*p == -1)
3148 video_enc->pix_fmt = codec->pix_fmts[0];
3149 }
3150
3151 if (intra_only)
3152 video_enc->gop_size = 0;
3153 if (video_qscale || same_quality) {
3154 video_enc->flags |= CODEC_FLAG_QSCALE;
3155 video_enc->global_quality=
3156 st->quality = FF_QP2LAMBDA * video_qscale;
3157 }
3158
3159 if(intra_matrix)
3160 video_enc->intra_matrix = intra_matrix;
3161 if(inter_matrix)
3162 video_enc->inter_matrix = inter_matrix;
3163
3164 p= video_rc_override_string;
3165 for(i=0; p; i++){
3166 int start, end, q;
3167 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3168 if(e!=3){
3169 fprintf(stderr, "error parsing rc_override\n");
3170 av_exit(1);
3171 }
3172 video_enc->rc_override=
3173 av_realloc(video_enc->rc_override,
3174 sizeof(RcOverride)*(i+1));
3175 video_enc->rc_override[i].start_frame= start;
3176 video_enc->rc_override[i].end_frame = end;
3177 if(q>0){
3178 video_enc->rc_override[i].qscale= q;
3179 video_enc->rc_override[i].quality_factor= 1.0;
3180 }
3181 else{
3182 video_enc->rc_override[i].qscale= 0;
3183 video_enc->rc_override[i].quality_factor= -q/100.0;
3184 }
3185 p= strchr(p, '/');
3186 if(p) p++;
3187 }
3188 video_enc->rc_override_count=i;
3189 if (!video_enc->rc_initial_buffer_occupancy)
3190 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3191 video_enc->me_threshold= me_threshold;
3192 video_enc->intra_dc_precision= intra_dc_precision - 8;
3193
3194 if (do_psnr)
3195 video_enc->flags|= CODEC_FLAG_PSNR;
3196
3197 /* two pass mode */
3198 if (do_pass) {
3199 if (do_pass == 1) {
3200 video_enc->flags |= CODEC_FLAG_PASS1;
3201 } else {
3202 video_enc->flags |= CODEC_FLAG_PASS2;
3203 }
3204 }
3205 }
3206 nb_ocodecs++;
3207 if (video_language) {
3208 av_metadata_set(&st->metadata, "language", video_language);
3209 av_freep(&video_language);
3210 }
3211
3212 /* reset some key parameters */
3213 video_disable = 0;
3214 av_freep(&video_codec_name);
3215 video_stream_copy = 0;
3216 frame_pix_fmt = PIX_FMT_NONE;
3217 }
3218
3219 static void new_audio_stream(AVFormatContext *oc)
3220 {
3221 AVStream *st;
3222 AVCodecContext *audio_enc;
3223 enum CodecID codec_id;
3224
3225 st = av_new_stream(oc, oc->nb_streams);
3226 if (!st) {
3227 fprintf(stderr, "Could not alloc stream\n");
3228 av_exit(1);
3229 }
3230 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3231
3232 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3233 audio_bitstream_filters= NULL;
3234
3235 avcodec_thread_init(st->codec, thread_count);
3236
3237 audio_enc = st->codec;
3238 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3239
3240 if(audio_codec_tag)
3241 audio_enc->codec_tag= audio_codec_tag;
3242
3243 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3244 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3245 avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3246 }
3247 if (audio_stream_copy) {
3248 st->stream_copy = 1;
3249 audio_enc->channels = audio_channels;
3250 } else {
3251 AVCodec *codec;
3252
3253 set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3254
3255 if (audio_codec_name) {
3256 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3257 codec = avcodec_find_encoder_by_name(audio_codec_name);
3258 output_codecs[nb_ocodecs] = codec;
3259 } else {
3260 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3261 codec = avcodec_find_encoder(codec_id);
3262 }
3263 audio_enc->codec_id = codec_id;
3264
3265 if (audio_qscale > QSCALE_NONE) {
3266 audio_enc->flags |= CODEC_FLAG_QSCALE;
3267 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3268 }
3269 audio_enc->channels = audio_channels;
3270 audio_enc->sample_fmt = audio_sample_fmt;
3271 audio_enc->channel_layout = channel_layout;
3272 if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3273 audio_enc->channel_layout = 0;
3274
3275 if(codec && codec->sample_fmts){
3276 const enum SampleFormat *p= codec->sample_fmts;
3277 for(; *p!=-1; p++){
3278 if(*p == audio_enc->sample_fmt)
3279 break;
3280 }
3281 if(*p == -1)
3282 audio_enc->sample_fmt = codec->sample_fmts[0];
3283 }
3284 }
3285 nb_ocodecs++;
3286 audio_enc->sample_rate = audio_sample_rate;
3287 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3288 if (audio_language) {
3289 av_metadata_set(&st->metadata, "language", audio_language);
3290 av_freep(&audio_language);
3291 }
3292
3293 /* reset some key parameters */
3294 audio_disable = 0;
3295 av_freep(&audio_codec_name);
3296 audio_stream_copy = 0;
3297 }
3298
3299 static void new_subtitle_stream(AVFormatContext *oc)
3300 {
3301 AVStream *st;
3302 AVCodecContext *subtitle_enc;
3303
3304 st = av_new_stream(oc, oc->nb_streams);
3305 if (!st) {
3306 fprintf(stderr, "Could not alloc stream\n");
3307 av_exit(1);
3308 }
3309 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3310
3311 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3312 subtitle_bitstream_filters= NULL;
3313
3314 subtitle_enc = st->codec;
3315 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3316
3317 if(subtitle_codec_tag)
3318 subtitle_enc->codec_tag= subtitle_codec_tag;
3319
3320 if (subtitle_stream_copy) {
3321 st->stream_copy = 1;
3322 } else {
3323 set_context_opts(avcodec_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3324 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3325 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3326 }
3327 nb_ocodecs++;
3328
3329 if (subtitle_language) {
3330 av_metadata_set(&st->metadata, "language", subtitle_language);
3331 av_freep(&subtitle_language);
3332 }
3333
3334 subtitle_disable = 0;
3335 av_freep(&subtitle_codec_name);
3336 subtitle_stream_copy = 0;
3337 }
3338
3339 static void opt_new_audio_stream(void)
3340 {
3341 AVFormatContext *oc;
3342 if (nb_output_files <= 0) {
3343 fprintf(stderr, "At least one output file must be specified\n");
3344 av_exit(1);
3345 }
3346 oc = output_files[nb_output_files - 1];
3347 new_audio_stream(oc);
3348 }
3349
3350 static void opt_new_video_stream(void)
3351 {
3352 AVFormatContext *oc;
3353 if (nb_output_files <= 0) {
3354 fprintf(stderr, "At least one output file must be specified\n");
3355 av_exit(1);
3356 }
3357 oc = output_files[nb_output_files - 1];
3358 new_video_stream(oc);
3359 }
3360
3361 static void opt_new_subtitle_stream(void)
3362 {
3363 AVFormatContext *oc;
3364 if (nb_output_files <= 0) {
3365 fprintf(stderr, "At least one output file must be specified\n");
3366 av_exit(1);
3367 }
3368 oc = output_files[nb_output_files - 1];
3369 new_subtitle_stream(oc);
3370 }
3371
3372 static void opt_output_file(const char *filename)
3373 {
3374 AVFormatContext *oc;
3375 int use_video, use_audio, use_subtitle;
3376 int input_has_video, input_has_audio, input_has_subtitle;
3377 AVFormatParameters params, *ap = &params;
3378 AVOutputFormat *file_oformat;
3379
3380 if (!strcmp(filename, "-"))
3381 filename = "pipe:";
3382
3383 oc = avformat_alloc_context();
3384 if (!oc) {
3385 print_error(filename, AVERROR(ENOMEM));
3386 av_exit(1);
3387 }
3388
3389 if (last_asked_format) {
3390 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3391 if (!file_oformat) {
3392 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3393 av_exit(1);
3394 }
3395 last_asked_format = NULL;
3396 } else {
3397 file_oformat = av_guess_format(NULL, filename, NULL);
3398 if (!file_oformat) {
3399 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3400 filename);
3401 av_exit(1);
3402 }
3403 }
3404
3405 oc->oformat = file_oformat;
3406 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3407
3408 if (!strcmp(file_oformat->name, "ffm") &&
3409 av_strstart(filename, "http:", NULL)) {
3410 /* special case for files sent to ffserver: we get the stream
3411 parameters from ffserver */
3412 int err = read_ffserver_streams(oc, filename);
3413 if (err < 0) {
3414 print_error(filename, err);
3415 av_exit(1);
3416 }
3417 } else {
3418 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3419 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3420 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3421
3422 /* disable if no corresponding type found and at least one
3423 input file */
3424 if (nb_input_files > 0) {
3425 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3426 &input_has_subtitle);
3427 if (!input_has_video)
3428 use_video = 0;
3429 if (!input_has_audio)
3430 use_audio = 0;
3431 if (!input_has_subtitle)
3432 use_subtitle = 0;
3433 }
3434
3435 /* manual disable */
3436 if (audio_disable) {
3437 use_audio = 0;
3438 }
3439 if (video_disable) {
3440 use_video = 0;
3441 }
3442 if (subtitle_disable) {
3443 use_subtitle = 0;
3444 }
3445
3446 if (use_video) {
3447 new_video_stream(oc);
3448 }
3449
3450 if (use_audio) {
3451 new_audio_stream(oc);
3452 }
3453
3454 if (use_subtitle) {
3455 new_subtitle_stream(oc);
3456 }
3457
3458 oc->timestamp = rec_timestamp;
3459
3460 for(; metadata_count>0; metadata_count--){
3461 av_metadata_set(&oc->metadata, metadata[metadata_count-1].key,
3462 metadata[metadata_count-1].value);
3463 }
3464 av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
3465 }
3466
3467 output_files[nb_output_files++] = oc;
3468
3469 /* check filename in case of an image number is expected */
3470 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3471 if (!av_filename_number_test(oc->filename)) {
3472 print_error(oc->filename, AVERROR_NUMEXPECTED);
3473 av_exit(1);
3474 }
3475 }
3476
3477 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3478 /* test if it already exists to avoid loosing precious files */
3479 if (!file_overwrite &&
3480 (strchr(filename, ':') == NULL ||
3481 filename[1] == ':' ||
3482 av_strstart(filename, "file:", NULL))) {
3483 if (url_exist(filename)) {
3484 if (!using_stdin) {
3485 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3486 fflush(stderr);
3487 if (!read_yesno()) {
3488 fprintf(stderr, "Not overwriting - exiting\n");
3489 av_exit(1);
3490 }
3491 }
3492 else {
3493 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3494 av_exit(1);
3495 }
3496 }
3497 }
3498
3499 /* open the file */
3500 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
3501 fprintf(stderr, "Could not open '%s'\n", filename);
3502 av_exit(1);
3503 }
3504 }
3505
3506 memset(ap, 0, sizeof(*ap));
3507 if (av_set_parameters(oc, ap) < 0) {
3508 fprintf(stderr, "%s: Invalid encoding parameters\n",
3509 oc->filename);
3510 av_exit(1);
3511 }
3512
3513 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3514 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3515 oc->loop_output = loop_output;
3516 oc->flags |= AVFMT_FLAG_NONBLOCK;
3517
3518 set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
3519 }
3520
3521 /* same option as mencoder */
3522 static void opt_pass(const char *pass_str)
3523 {
3524 int pass;
3525 pass = atoi(pass_str);
3526 if (pass != 1 && pass != 2) {
3527 fprintf(stderr, "pass number can be only 1 or 2\n");
3528 av_exit(1);
3529 }
3530 do_pass = pass;
3531 }
3532
3533 static int64_t getutime(void)
3534 {
3535 #if HAVE_GETRUSAGE
3536 struct rusage rusage;
3537
3538 getrusage(RUSAGE_SELF, &rusage);
3539 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3540 #elif HAVE_GETPROCESSTIMES
3541 HANDLE proc;
3542 FILETIME c, e, k, u;
3543 proc = GetCurrentProcess();
3544 GetProcessTimes(proc, &c, &e, &k, &u);
3545 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3546 #else
3547 return av_gettime();
3548 #endif
3549 }
3550
3551 static int64_t getmaxrss(void)
3552 {
3553 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3554 struct rusage rusage;
3555 getrusage(RUSAGE_SELF, &rusage);
3556 return (int64_t)rusage.ru_maxrss * 1024;
3557 #elif HAVE_GETPROCESSMEMORYINFO
3558 HANDLE proc;
3559 PROCESS_MEMORY_COUNTERS memcounters;
3560 proc = GetCurrentProcess();
3561 memcounters.cb = sizeof(memcounters);
3562 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3563 return memcounters.PeakPagefileUsage;
3564 #else
3565 return 0;
3566 #endif
3567 }
3568
3569 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3570 {
3571 int i;
3572 const char *p = str;
3573 for(i = 0;; i++) {
3574 dest[i] = atoi(p);
3575 if(i == 63)
3576 break;
3577 p = strchr(p, ',');
3578 if(!p) {
3579 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3580 av_exit(1);
3581 }
3582 p++;
3583 }
3584 }
3585
3586 static void opt_inter_matrix(const char *arg)
3587 {
3588 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3589 parse_matrix_coeffs(inter_matrix, arg);
3590 }
3591
3592 static void opt_intra_matrix(const char *arg)
3593 {
3594 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3595 parse_matrix_coeffs(intra_matrix, arg);
3596 }
3597
3598 /**
3599 * Trivial log callback.
3600 * Only suitable for show_help and similar since it lacks prefix handling.
3601 */
3602 static void log_callback_help(void* ptr, int level, const char* fmt, va_list vl)
3603 {
3604 vfprintf(stdout, fmt, vl);
3605 }
3606
3607 static void show_usage(void)
3608 {
3609 printf("Hyper fast Audio and Video encoder\n");
3610 printf("usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...\n");
3611 printf("\n");
3612 }
3613
3614 static void show_help(void)
3615 {
3616 av_log_set_callback(log_callback_help);
3617 show_usage();
3618 show_help_options(options, "Main options:\n",
3619 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3620 show_help_options(options, "\nAdvanced options:\n",
3621 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3622 OPT_EXPERT);
3623 show_help_options(options, "\nVideo options:\n",
3624 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3625 OPT_VIDEO);
3626 show_help_options(options, "\nAdvanced Video options:\n",
3627 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3628 OPT_VIDEO | OPT_EXPERT);
3629 show_help_options(options, "\nAudio options:\n",
3630 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3631 OPT_AUDIO);
3632 show_help_options(options, "\nAdvanced Audio options:\n",
3633 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3634 OPT_AUDIO | OPT_EXPERT);
3635 show_help_options(options, "\nSubtitle options:\n",
3636 OPT_SUBTITLE | OPT_GRAB,
3637 OPT_SUBTITLE);
3638 show_help_options(options, "\nAudio/Video grab options:\n",
3639 OPT_GRAB,
3640 OPT_GRAB);
3641 printf("\n");
3642 av_opt_show(avcodec_opts[0], NULL);
3643 printf("\n");
3644 av_opt_show(avformat_opts, NULL);
3645 printf("\n");
3646 av_opt_show(sws_opts, NULL);
3647 }
3648
3649 static void opt_target(const char *arg)
3650 {
3651 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
3652 static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3653
3654 if(!strncmp(arg, "pal-", 4)) {
3655 norm = PAL;
3656 arg += 4;
3657 } else if(!strncmp(arg, "ntsc-", 5)) {
3658 norm = NTSC;
3659 arg += 5;
3660 } else if(!strncmp(arg, "film-", 5)) {
3661 norm = FILM;
3662 arg += 5;
3663 } else {
3664 int fr;
3665 /* Calculate FR via float to avoid int overflow */
3666 fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
3667 if(fr == 25000) {
3668 norm = PAL;
3669 } else if((fr == 29970) || (fr == 23976)) {
3670 norm = NTSC;
3671 } else {
3672 /* Try to determine PAL/NTSC by peeking in the input files */
3673 if(nb_input_files) {
3674 int i, j;
3675 for(j = 0; j < nb_input_files; j++) {
3676 for(i = 0; i < input_files[j]->nb_streams; i++) {
3677 AVCodecContext *c = input_files[j]->streams[i]->codec;
3678 if(c->codec_type != CODEC_TYPE_VIDEO)
3679 continue;
3680 fr = c->time_base.den * 1000 / c->time_base.num;
3681 if(fr == 25000) {
3682 norm = PAL;
3683 break;
3684 } else if((fr == 29970) || (fr == 23976)) {
3685 norm = NTSC;
3686 break;
3687 }
3688 }
3689 if(norm != UNKNOWN)
3690 break;
3691 }
3692 }
3693 }
3694 if(verbose && norm != UNKNOWN)
3695 fprintf(stderr, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
3696 }
3697
3698 if(norm == UNKNOWN) {
3699 fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
3700 fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
3701 fprintf(stderr, "or set a framerate with \"-r xxx\".\n");