cb11dc1e3173effd93d38109a26c64de6b8334da
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/avstring.h"
42 #include "libavformat/os_support.h"
43
44 #if HAVE_SYS_RESOURCE_H
45 #include <sys/types.h>
46 #include <sys/resource.h>
47 #elif HAVE_GETPROCESSTIMES
48 #include <windows.h>
49 #endif
50
51 #if HAVE_SYS_SELECT_H
52 #include <sys/select.h>
53 #endif
54
55 #if HAVE_TERMIOS_H
56 #include <fcntl.h>
57 #include <sys/ioctl.h>
58 #include <sys/time.h>
59 #include <termios.h>
60 #elif HAVE_CONIO_H
61 #include <conio.h>
62 #endif
63 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
64 #include <time.h>
65
66 #include "cmdutils.h"
67
68 #undef NDEBUG
69 #include <assert.h>
70
71 #undef exit
72
73 const char program_name[] = "FFmpeg";
74 const int program_birth_year = 2000;
75
76 /* select an input stream for an output stream */
77 typedef struct AVStreamMap {
78 int file_index;
79 int stream_index;
80 int sync_file_index;
81 int sync_stream_index;
82 } AVStreamMap;
83
84 /** select an input file for an output file */
85 typedef struct AVMetaDataMap {
86 int out_file;
87 int in_file;
88 } AVMetaDataMap;
89
90 static const OptionDef options[];
91
92 #define MAX_FILES 20
93
94 static AVFormatContext *input_files[MAX_FILES];
95 static int64_t input_files_ts_offset[MAX_FILES];
96 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
97 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
98 static int nb_input_files = 0;
99 static int nb_icodecs;
100
101 static AVFormatContext *output_files[MAX_FILES];
102 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
103 static int nb_output_files = 0;
104 static int nb_ocodecs;
105
106 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
107 static int nb_stream_maps;
108
109 static AVMetaDataMap meta_data_maps[MAX_FILES];
110 static int nb_meta_data_maps;
111
112 static AVInputFormat *file_iformat;
113 static AVOutputFormat *file_oformat;
114 static int frame_width = 0;
115 static int frame_height = 0;
116 static float frame_aspect_ratio = 0;
117 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
118 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
119 static int frame_padtop = 0;
120 static int frame_padbottom = 0;
121 static int frame_padleft = 0;
122 static int frame_padright = 0;
123 static int padcolor[3] = {16,128,128}; /* default to black */
124 static int frame_topBand = 0;
125 static int frame_bottomBand = 0;
126 static int frame_leftBand = 0;
127 static int frame_rightBand = 0;
128 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
129 static AVRational frame_rate;
130 static float video_qscale = 0;
131 static uint16_t *intra_matrix = NULL;
132 static uint16_t *inter_matrix = NULL;
133 #if 0 //experimental, (can be removed)
134 static float video_rc_qsquish=1.0;
135 static float video_rc_qmod_amp=0;
136 static int video_rc_qmod_freq=0;
137 #endif
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static int video_codec_tag = 0;
143 static int same_quality = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int loop_input = 0;
149 static int loop_output = AVFMT_NOOUTPUTLOOP;
150 static int qp_hist = 0;
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 44100;
154 static int64_t channel_layout = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 1;
159 static char *audio_codec_name = NULL;
160 static int audio_codec_tag = 0;
161 static char *audio_language = NULL;
162
163 static int subtitle_disable = 0;
164 static char *subtitle_codec_name = NULL;
165 static char *subtitle_language = NULL;
166 static int subtitle_codec_tag = 0;
167
168 static float mux_preload= 0.5;
169 static float mux_max_delay= 0.7;
170
171 static int64_t recording_time = INT64_MAX;
172 static int64_t start_time = 0;
173 static int64_t rec_timestamp = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static int metadata_count;
177 static AVMetadataTag *metadata;
178 static int do_benchmark = 0;
179 static int do_hex_dump = 0;
180 static int do_pkt_dump = 0;
181 static int do_psnr = 0;
182 static int do_pass = 0;
183 static char *pass_logfilename_prefix = NULL;
184 static int audio_stream_copy = 0;
185 static int video_stream_copy = 0;
186 static int subtitle_stream_copy = 0;
187 static int video_sync_method= -1;
188 static int audio_sync_method= 0;
189 static float audio_drift_threshold= 0.1;
190 static int copy_ts= 0;
191 static int opt_shortest = 0;
192 static int video_global_header = 0;
193 static char *vstats_filename;
194 static FILE *vstats_file;
195 static int opt_programid = 0;
196 static int copy_initial_nonkeyframes = 0;
197
198 static int rate_emu = 0;
199
200 static int video_channel = 0;
201 static char *video_standard;
202
203 static int audio_volume = 256;
204
205 static int exit_on_error = 0;
206 static int using_stdin = 0;
207 static int verbose = 1;
208 static int thread_count= 1;
209 static int q_pressed = 0;
210 static int64_t video_size = 0;
211 static int64_t audio_size = 0;
212 static int64_t extra_size = 0;
213 static int nb_frames_dup = 0;
214 static int nb_frames_drop = 0;
215 static int input_sync;
216 static uint64_t limit_filesize = 0;
217 static int force_fps = 0;
218
219 static int pgmyuv_compatibility_hack=0;
220 static float dts_delta_threshold = 10;
221
222 static unsigned int sws_flags = SWS_BICUBIC;
223
224 static int64_t timer_start;
225
226 static uint8_t *audio_buf;
227 static uint8_t *audio_out;
228 static uint8_t *audio_out2;
229
230 static short *samples;
231
232 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
234 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
235 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
236
237 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
238
239 struct AVInputStream;
240
241 typedef struct AVOutputStream {
242 int file_index; /* file index */
243 int index; /* stream index in the output file */
244 int source_index; /* AVInputStream index */
245 AVStream *st; /* stream in the output file */
246 int encoding_needed; /* true if encoding needed for this stream */
247 int frame_number;
248 /* input pts and corresponding output pts
249 for A/V sync */
250 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
251 struct AVInputStream *sync_ist; /* input stream to sync against */
252 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
253 /* video only */
254 int video_resample;
255 AVFrame pict_tmp; /* temporary image for resampling */
256 struct SwsContext *img_resample_ctx; /* for image resampling */
257 int resample_height;
258
259 int video_crop;
260 int topBand; /* cropping area sizes */
261 int leftBand;
262
263 int video_pad;
264 int padtop; /* padding area sizes */
265 int padbottom;
266 int padleft;
267 int padright;
268
269 /* audio only */
270 int audio_resample;
271 ReSampleContext *resample; /* for audio resampling */
272 int reformat_pair;
273 AVAudioConvert *reformat_ctx;
274 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
275 FILE *logfile;
276 } AVOutputStream;
277
278 typedef struct AVInputStream {
279 int file_index;
280 int index;
281 AVStream *st;
282 int discard; /* true if stream data should be discarded */
283 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
284 int64_t sample_index; /* current sample */
285
286 int64_t start; /* time when read started */
287 int64_t next_pts; /* synthetic pts for cases where pkt.pts
288 is not defined */
289 int64_t pts; /* current pts */
290 int is_start; /* is 1 at the start and after a discontinuity */
291 } AVInputStream;
292
293 typedef struct AVInputFile {
294 int eof_reached; /* true if eof reached */
295 int ist_index; /* index of first stream in ist_table */
296 int buffer_size; /* current total buffer size */
297 int nb_streams; /* nb streams we are aware of */
298 } AVInputFile;
299
300 #if HAVE_TERMIOS_H
301
302 /* init terminal so that we can grab keys */
303 static struct termios oldtty;
304 #endif
305
306 static void term_exit(void)
307 {
308 #if HAVE_TERMIOS_H
309 tcsetattr (0, TCSANOW, &oldtty);
310 #endif
311 }
312
313 static volatile sig_atomic_t received_sigterm = 0;
314
315 static void
316 sigterm_handler(int sig)
317 {
318 received_sigterm = sig;
319 term_exit();
320 }
321
322 static void term_init(void)
323 {
324 #if HAVE_TERMIOS_H
325 struct termios tty;
326
327 tcgetattr (0, &tty);
328 oldtty = tty;
329
330 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
331 |INLCR|IGNCR|ICRNL|IXON);
332 tty.c_oflag |= OPOST;
333 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
334 tty.c_cflag &= ~(CSIZE|PARENB);
335 tty.c_cflag |= CS8;
336 tty.c_cc[VMIN] = 1;
337 tty.c_cc[VTIME] = 0;
338
339 tcsetattr (0, TCSANOW, &tty);
340 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
341 #endif
342
343 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
344 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
345 /*
346 register a function to be called at normal program termination
347 */
348 atexit(term_exit);
349 #if CONFIG_BEOS_NETSERVER
350 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
351 #endif
352 }
353
354 /* read a key without blocking */
355 static int read_key(void)
356 {
357 #if HAVE_TERMIOS_H
358 int n = 1;
359 unsigned char ch;
360 #if !CONFIG_BEOS_NETSERVER
361 struct timeval tv;
362 fd_set rfds;
363
364 FD_ZERO(&rfds);
365 FD_SET(0, &rfds);
366 tv.tv_sec = 0;
367 tv.tv_usec = 0;
368 n = select(1, &rfds, NULL, NULL, &tv);
369 #endif
370 if (n > 0) {
371 n = read(0, &ch, 1);
372 if (n == 1)
373 return ch;
374
375 return n;
376 }
377 #elif HAVE_CONIO_H
378 if(kbhit())
379 return(getch());
380 #endif
381 return -1;
382 }
383
384 static int decode_interrupt_cb(void)
385 {
386 return q_pressed || (q_pressed = read_key() == 'q');
387 }
388
389 static int av_exit(int ret)
390 {
391 int i;
392
393 /* close files */
394 for(i=0;i<nb_output_files;i++) {
395 /* maybe av_close_output_file ??? */
396 AVFormatContext *s = output_files[i];
397 int j;
398 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
399 url_fclose(s->pb);
400 for(j=0;j<s->nb_streams;j++) {
401 av_metadata_free(&s->streams[j]->metadata);
402 av_free(s->streams[j]->codec);
403 av_free(s->streams[j]);
404 }
405 for(j=0;j<s->nb_programs;j++) {
406 av_metadata_free(&s->programs[j]->metadata);
407 }
408 for(j=0;j<s->nb_chapters;j++) {
409 av_metadata_free(&s->chapters[j]->metadata);
410 }
411 av_metadata_free(&s->metadata);
412 av_free(s);
413 }
414 for(i=0;i<nb_input_files;i++)
415 av_close_input_file(input_files[i]);
416
417 av_free(intra_matrix);
418 av_free(inter_matrix);
419
420 if (vstats_file)
421 fclose(vstats_file);
422 av_free(vstats_filename);
423
424 av_free(opt_names);
425
426 av_free(video_codec_name);
427 av_free(audio_codec_name);
428 av_free(subtitle_codec_name);
429
430 av_free(video_standard);
431
432 #if CONFIG_POWERPC_PERF
433 void powerpc_display_perf_report(void);
434 powerpc_display_perf_report();
435 #endif /* CONFIG_POWERPC_PERF */
436
437 for (i=0;i<CODEC_TYPE_NB;i++)
438 av_free(avcodec_opts[i]);
439 av_free(avformat_opts);
440 av_free(sws_opts);
441 av_free(audio_buf);
442 av_free(audio_out);
443 av_free(audio_out2);
444 av_free(samples);
445
446 if (received_sigterm) {
447 fprintf(stderr,
448 "Received signal %d: terminating.\n",
449 (int) received_sigterm);
450 exit (255);
451 }
452
453 exit(ret); /* not all OS-es handle main() return value */
454 return ret;
455 }
456
457 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
458 {
459 int i, err;
460 AVFormatContext *ic;
461 int nopts = 0;
462
463 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
464 if (err < 0)
465 return err;
466 /* copy stream format */
467 s->nb_streams = ic->nb_streams;
468 for(i=0;i<ic->nb_streams;i++) {
469 AVStream *st;
470
471 // FIXME: a more elegant solution is needed
472 st = av_mallocz(sizeof(AVStream));
473 memcpy(st, ic->streams[i], sizeof(AVStream));
474 st->codec = avcodec_alloc_context();
475 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
476 s->streams[i] = st;
477
478 if (st->codec->codec_type == CODEC_TYPE_AUDIO && audio_stream_copy)
479 st->stream_copy = 1;
480 else if (st->codec->codec_type == CODEC_TYPE_VIDEO && video_stream_copy)
481 st->stream_copy = 1;
482
483 if(!st->codec->thread_count)
484 st->codec->thread_count = 1;
485 if(st->codec->thread_count>1)
486 avcodec_thread_init(st->codec, st->codec->thread_count);
487
488 if(st->codec->flags & CODEC_FLAG_BITEXACT)
489 nopts = 1;
490 }
491
492 if (!nopts)
493 s->timestamp = av_gettime();
494
495 av_close_input_file(ic);
496 return 0;
497 }
498
499 static double
500 get_sync_ipts(const AVOutputStream *ost)
501 {
502 const AVInputStream *ist = ost->sync_ist;
503 return (double)(ist->pts - start_time)/AV_TIME_BASE;
504 }
505
506 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
507 int ret;
508
509 while(bsfc){
510 AVPacket new_pkt= *pkt;
511 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
512 &new_pkt.data, &new_pkt.size,
513 pkt->data, pkt->size,
514 pkt->flags & PKT_FLAG_KEY);
515 if(a>0){
516 av_free_packet(pkt);
517 new_pkt.destruct= av_destruct_packet;
518 } else if(a<0){
519 fprintf(stderr, "%s failed for stream %d, codec %s",
520 bsfc->filter->name, pkt->stream_index,
521 avctx->codec ? avctx->codec->name : "copy");
522 print_error("", a);
523 if (exit_on_error)
524 av_exit(1);
525 }
526 *pkt= new_pkt;
527
528 bsfc= bsfc->next;
529 }
530
531 ret= av_interleaved_write_frame(s, pkt);
532 if(ret < 0){
533 print_error("av_interleaved_write_frame()", ret);
534 av_exit(1);
535 }
536 }
537
538 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
539
540 static void do_audio_out(AVFormatContext *s,
541 AVOutputStream *ost,
542 AVInputStream *ist,
543 unsigned char *buf, int size)
544 {
545 uint8_t *buftmp;
546 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
547
548 int size_out, frame_bytes, ret;
549 AVCodecContext *enc= ost->st->codec;
550 AVCodecContext *dec= ist->st->codec;
551 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
552 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
553
554 /* SC: dynamic allocation of buffers */
555 if (!audio_buf)
556 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
557 if (!audio_out)
558 audio_out = av_malloc(audio_out_size);
559 if (!audio_buf || !audio_out)
560 return; /* Should signal an error ! */
561
562 if (enc->channels != dec->channels)
563 ost->audio_resample = 1;
564
565 if (ost->audio_resample && !ost->resample) {
566 if (dec->sample_fmt != SAMPLE_FMT_S16)
567 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
568 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
569 enc->sample_rate, dec->sample_rate,
570 enc->sample_fmt, dec->sample_fmt,
571 16, 10, 0, 0.8);
572 if (!ost->resample) {
573 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
574 dec->channels, dec->sample_rate,
575 enc->channels, enc->sample_rate);
576 av_exit(1);
577 }
578 }
579
580 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
581 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
582 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
583 if (!audio_out2)
584 audio_out2 = av_malloc(audio_out_size);
585 if (!audio_out2)
586 av_exit(1);
587 if (ost->reformat_ctx)
588 av_audio_convert_free(ost->reformat_ctx);
589 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
590 dec->sample_fmt, 1, NULL, 0);
591 if (!ost->reformat_ctx) {
592 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
593 avcodec_get_sample_fmt_name(dec->sample_fmt),
594 avcodec_get_sample_fmt_name(enc->sample_fmt));
595 av_exit(1);
596 }
597 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
598 }
599
600 if(audio_sync_method){
601 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
602 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
603 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
604 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
605
606 //FIXME resample delay
607 if(fabs(delta) > 50){
608 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
609 if(byte_delta < 0){
610 byte_delta= FFMAX(byte_delta, -size);
611 size += byte_delta;
612 buf -= byte_delta;
613 if(verbose > 2)
614 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
615 if(!size)
616 return;
617 ist->is_start=0;
618 }else{
619 static uint8_t *input_tmp= NULL;
620 input_tmp= av_realloc(input_tmp, byte_delta + size);
621
622 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
623 ist->is_start=0;
624 else
625 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
626
627 memset(input_tmp, 0, byte_delta);
628 memcpy(input_tmp + byte_delta, buf, size);
629 buf= input_tmp;
630 size += byte_delta;
631 if(verbose > 2)
632 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
633 }
634 }else if(audio_sync_method>1){
635 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
636 assert(ost->audio_resample);
637 if(verbose > 2)
638 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
639 // 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));
640 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
641 }
642 }
643 }else
644 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
645 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
646
647 if (ost->audio_resample) {
648 buftmp = audio_buf;
649 size_out = audio_resample(ost->resample,
650 (short *)buftmp, (short *)buf,
651 size / (ist->st->codec->channels * isize));
652 size_out = size_out * enc->channels * osize;
653 } else {
654 buftmp = buf;
655 size_out = size;
656 }
657
658 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
659 const void *ibuf[6]= {buftmp};
660 void *obuf[6]= {audio_out2};
661 int istride[6]= {isize};
662 int ostride[6]= {osize};
663 int len= size_out/istride[0];
664 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
665 printf("av_audio_convert() failed\n");
666 if (exit_on_error)
667 av_exit(1);
668 return;
669 }
670 buftmp = audio_out2;
671 size_out = len*osize;
672 }
673
674 /* now encode as many frames as possible */
675 if (enc->frame_size > 1) {
676 /* output resampled raw samples */
677 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
678 fprintf(stderr, "av_fifo_realloc2() failed\n");
679 av_exit(1);
680 }
681 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
682
683 frame_bytes = enc->frame_size * osize * enc->channels;
684
685 while (av_fifo_size(ost->fifo) >= frame_bytes) {
686 AVPacket pkt;
687 av_init_packet(&pkt);
688
689 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
690
691 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
692
693 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
694 (short *)audio_buf);
695 if (ret < 0) {
696 fprintf(stderr, "Audio encoding failed\n");
697 av_exit(1);
698 }
699 audio_size += ret;
700 pkt.stream_index= ost->index;
701 pkt.data= audio_out;
702 pkt.size= ret;
703 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
704 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
705 pkt.flags |= PKT_FLAG_KEY;
706 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
707
708 ost->sync_opts += enc->frame_size;
709 }
710 } else {
711 AVPacket pkt;
712 int coded_bps = av_get_bits_per_sample(enc->codec->id)/8;
713 av_init_packet(&pkt);
714
715 ost->sync_opts += size_out / (osize * enc->channels);
716
717 /* output a pcm frame */
718 /* determine the size of the coded buffer */
719 size_out /= osize;
720 if (coded_bps)
721 size_out *= coded_bps;
722
723 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
724 ret = avcodec_encode_audio(enc, audio_out, size_out,
725 (short *)buftmp);
726 if (ret < 0) {
727 fprintf(stderr, "Audio encoding failed\n");
728 av_exit(1);
729 }
730 audio_size += ret;
731 pkt.stream_index= ost->index;
732 pkt.data= audio_out;
733 pkt.size= ret;
734 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
735 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
736 pkt.flags |= PKT_FLAG_KEY;
737 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
738 }
739 }
740
741 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
742 {
743 AVCodecContext *dec;
744 AVPicture *picture2;
745 AVPicture picture_tmp;
746 uint8_t *buf = 0;
747
748 dec = ist->st->codec;
749
750 /* deinterlace : must be done before any resize */
751 if (do_deinterlace) {
752 int size;
753
754 /* create temporary picture */
755 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
756 buf = av_malloc(size);
757 if (!buf)
758 return;
759
760 picture2 = &picture_tmp;
761 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
762
763 if(avpicture_deinterlace(picture2, picture,
764 dec->pix_fmt, dec->width, dec->height) < 0) {
765 /* if error, do not deinterlace */
766 fprintf(stderr, "Deinterlacing failed\n");
767 av_free(buf);
768 buf = NULL;
769 picture2 = picture;
770 }
771 } else {
772 picture2 = picture;
773 }
774
775 if (picture != picture2)
776 *picture = *picture2;
777 *bufp = buf;
778 }
779
780 /* we begin to correct av delay at this threshold */
781 #define AV_DELAY_MAX 0.100
782
783 static void do_subtitle_out(AVFormatContext *s,
784 AVOutputStream *ost,
785 AVInputStream *ist,
786 AVSubtitle *sub,
787 int64_t pts)
788 {
789 static uint8_t *subtitle_out = NULL;
790 int subtitle_out_max_size = 65536;
791 int subtitle_out_size, nb, i;
792 AVCodecContext *enc;
793 AVPacket pkt;
794
795 if (pts == AV_NOPTS_VALUE) {
796 fprintf(stderr, "Subtitle packets must have a pts\n");
797 if (exit_on_error)
798 av_exit(1);
799 return;
800 }
801
802 enc = ost->st->codec;
803
804 if (!subtitle_out) {
805 subtitle_out = av_malloc(subtitle_out_max_size);
806 }
807
808 /* Note: DVB subtitle need one packet to draw them and one other
809 packet to clear them */
810 /* XXX: signal it in the codec context ? */
811 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
812 nb = 2;
813 else
814 nb = 1;
815
816 for(i = 0; i < nb; i++) {
817 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
818 subtitle_out_max_size, sub);
819
820 av_init_packet(&pkt);
821 pkt.stream_index = ost->index;
822 pkt.data = subtitle_out;
823 pkt.size = subtitle_out_size;
824 pkt.pts = av_rescale_q(pts, ist->st->time_base, ost->st->time_base);
825 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
826 /* XXX: the pts correction is handled here. Maybe handling
827 it in the codec would be better */
828 if (i == 0)
829 pkt.pts += 90 * sub->start_display_time;
830 else
831 pkt.pts += 90 * sub->end_display_time;
832 }
833 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
834 }
835 }
836
837 static int bit_buffer_size= 1024*256;
838 static uint8_t *bit_buffer= NULL;
839
840 static void do_video_out(AVFormatContext *s,
841 AVOutputStream *ost,
842 AVInputStream *ist,
843 AVFrame *in_picture,
844 int *frame_size)
845 {
846 int nb_frames, i, ret;
847 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
848 AVFrame picture_crop_temp, picture_pad_temp;
849 AVCodecContext *enc, *dec;
850
851 avcodec_get_frame_defaults(&picture_crop_temp);
852 avcodec_get_frame_defaults(&picture_pad_temp);
853
854 enc = ost->st->codec;
855 dec = ist->st->codec;
856
857 /* by default, we output a single frame */
858 nb_frames = 1;
859
860 *frame_size = 0;
861
862 if(video_sync_method>0 || (video_sync_method && av_q2d(enc->time_base) > 0.001)){
863 double vdelta;
864 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
865 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
866 if (vdelta < -1.1)
867 nb_frames = 0;
868 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
869 if(vdelta<=-0.6){
870 nb_frames=0;
871 }else if(vdelta>0.6)
872 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
873 }else if (vdelta > 1.1)
874 nb_frames = lrintf(vdelta);
875 //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);
876 if (nb_frames == 0){
877 ++nb_frames_drop;
878 if (verbose>2)
879 fprintf(stderr, "*** drop!\n");
880 }else if (nb_frames > 1) {
881 nb_frames_dup += nb_frames;
882 if (verbose>2)
883 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
884 }
885 }else
886 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
887
888 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
889 if (nb_frames <= 0)
890 return;
891
892 if (ost->video_crop) {
893 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
894 fprintf(stderr, "error cropping picture\n");
895 if (exit_on_error)
896 av_exit(1);
897 return;
898 }
899 formatted_picture = &picture_crop_temp;
900 } else {
901 formatted_picture = in_picture;
902 }
903
904 final_picture = formatted_picture;
905 padding_src = formatted_picture;
906 resampling_dst = &ost->pict_tmp;
907 if (ost->video_pad) {
908 final_picture = &ost->pict_tmp;
909 if (ost->video_resample) {
910 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
911 fprintf(stderr, "error padding picture\n");
912 if (exit_on_error)
913 av_exit(1);
914 return;
915 }
916 resampling_dst = &picture_pad_temp;
917 }
918 }
919
920 if (ost->video_resample) {
921 padding_src = NULL;
922 final_picture = &ost->pict_tmp;
923 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
924 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
925 }
926
927 if (ost->video_pad) {
928 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
929 enc->height, enc->width, enc->pix_fmt,
930 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
931 }
932
933 /* duplicates frame if needed */
934 for(i=0;i<nb_frames;i++) {
935 AVPacket pkt;
936 av_init_packet(&pkt);
937 pkt.stream_index= ost->index;
938
939 if (s->oformat->flags & AVFMT_RAWPICTURE) {
940 /* raw pictures are written as AVPicture structure to
941 avoid any copies. We support temorarily the older
942 method. */
943 AVFrame* old_frame = enc->coded_frame;
944 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
945 pkt.data= (uint8_t *)final_picture;
946 pkt.size= sizeof(AVPicture);
947 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
948 pkt.flags |= PKT_FLAG_KEY;
949
950 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
951 enc->coded_frame = old_frame;
952 } else {
953 AVFrame big_picture;
954
955 big_picture= *final_picture;
956 /* better than nothing: use input picture interlaced
957 settings */
958 big_picture.interlaced_frame = in_picture->interlaced_frame;
959 if(avcodec_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
960 if(top_field_first == -1)
961 big_picture.top_field_first = in_picture->top_field_first;
962 else
963 big_picture.top_field_first = top_field_first;
964 }
965
966 /* handles sameq here. This is not correct because it may
967 not be a global option */
968 if (same_quality) {
969 big_picture.quality = ist->st->quality;
970 }else
971 big_picture.quality = ost->st->quality;
972 if(!me_threshold)
973 big_picture.pict_type = 0;
974 // big_picture.pts = AV_NOPTS_VALUE;
975 big_picture.pts= ost->sync_opts;
976 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
977 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
978 ret = avcodec_encode_video(enc,
979 bit_buffer, bit_buffer_size,
980 &big_picture);
981 if (ret < 0) {
982 fprintf(stderr, "Video encoding failed\n");
983 av_exit(1);
984 }
985
986 if(ret>0){
987 pkt.data= bit_buffer;
988 pkt.size= ret;
989 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
990 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
991 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
992 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
993 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
994
995 if(enc->coded_frame->key_frame)
996 pkt.flags |= PKT_FLAG_KEY;
997 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
998 *frame_size = ret;
999 video_size += ret;
1000 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1001 // enc->frame_number-1, ret, enc->pict_type);
1002 /* if two pass, output log */
1003 if (ost->logfile && enc->stats_out) {
1004 fprintf(ost->logfile, "%s", enc->stats_out);
1005 }
1006 }
1007 }
1008 ost->sync_opts++;
1009 ost->frame_number++;
1010 }
1011 }
1012
1013 static double psnr(double d){
1014 return -10.0*log(d)/log(10.0);
1015 }
1016
1017 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1018 int frame_size)
1019 {
1020 AVCodecContext *enc;
1021 int frame_number;
1022 double ti1, bitrate, avg_bitrate;
1023
1024 /* this is executed just the first time do_video_stats is called */
1025 if (!vstats_file) {
1026 vstats_file = fopen(vstats_filename, "w");
1027 if (!vstats_file) {
1028 perror("fopen");
1029 av_exit(1);
1030 }
1031 }
1032
1033 enc = ost->st->codec;
1034 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1035 frame_number = ost->frame_number;
1036 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1037 if (enc->flags&CODEC_FLAG_PSNR)
1038 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1039
1040 fprintf(vstats_file,"f_size= %6d ", frame_size);
1041 /* compute pts value */
1042 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1043 if (ti1 < 0.01)
1044 ti1 = 0.01;
1045
1046 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1047 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1048 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1049 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1050 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1051 }
1052 }
1053
1054 static void print_report(AVFormatContext **output_files,
1055 AVOutputStream **ost_table, int nb_ostreams,
1056 int is_last_report)
1057 {
1058 char buf[1024];
1059 AVOutputStream *ost;
1060 AVFormatContext *oc;
1061 int64_t total_size;
1062 AVCodecContext *enc;
1063 int frame_number, vid, i;
1064 double bitrate, ti1, pts;
1065 static int64_t last_time = -1;
1066 static int qp_histogram[52];
1067
1068 if (!is_last_report) {
1069 int64_t cur_time;
1070 /* display the report every 0.5 seconds */
1071 cur_time = av_gettime();
1072 if (last_time == -1) {
1073 last_time = cur_time;
1074 return;
1075 }
1076 if ((cur_time - last_time) < 500000)
1077 return;
1078 last_time = cur_time;
1079 }
1080
1081
1082 oc = output_files[0];
1083
1084 total_size = url_fsize(oc->pb);
1085 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1086 total_size= url_ftell(oc->pb);
1087
1088 buf[0] = '\0';
1089 ti1 = 1e10;
1090 vid = 0;
1091 for(i=0;i<nb_ostreams;i++) {
1092 ost = ost_table[i];
1093 enc = ost->st->codec;
1094 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1095 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1096 !ost->st->stream_copy ?
1097 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1098 }
1099 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1100 float t = (av_gettime()-timer_start) / 1000000.0;
1101
1102 frame_number = ost->frame_number;
1103 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1104 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1105 !ost->st->stream_copy ?
1106 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1107 if(is_last_report)
1108 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1109 if(qp_hist){
1110 int j;
1111 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1112 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1113 qp_histogram[qp]++;
1114 for(j=0; j<32; j++)
1115 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1116 }
1117 if (enc->flags&CODEC_FLAG_PSNR){
1118 int j;
1119 double error, error_sum=0;
1120 double scale, scale_sum=0;
1121 char type[3]= {'Y','U','V'};
1122 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1123 for(j=0; j<3; j++){
1124 if(is_last_report){
1125 error= enc->error[j];
1126 scale= enc->width*enc->height*255.0*255.0*frame_number;
1127 }else{
1128 error= enc->coded_frame->error[j];
1129 scale= enc->width*enc->height*255.0*255.0;
1130 }
1131 if(j) scale/=4;
1132 error_sum += error;
1133 scale_sum += scale;
1134 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1135 }
1136 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1137 }
1138 vid = 1;
1139 }
1140 /* compute min output value */
1141 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1142 if ((pts < ti1) && (pts > 0))
1143 ti1 = pts;
1144 }
1145 if (ti1 < 0.01)
1146 ti1 = 0.01;
1147
1148 if (verbose || is_last_report) {
1149 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1150
1151 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1152 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1153 (double)total_size / 1024, ti1, bitrate);
1154
1155 if (verbose > 1)
1156 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1157 nb_frames_dup, nb_frames_drop);
1158
1159 if (verbose >= 0)
1160 fprintf(stderr, "%s \r", buf);
1161
1162 fflush(stderr);
1163 }
1164
1165 if (is_last_report && verbose >= 0){
1166 int64_t raw= audio_size + video_size + extra_size;
1167 fprintf(stderr, "\n");
1168 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1169 video_size/1024.0,
1170 audio_size/1024.0,
1171 extra_size/1024.0,
1172 100.0*(total_size - raw)/raw
1173 );
1174 }
1175 }
1176
1177 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1178 static int output_packet(AVInputStream *ist, int ist_index,
1179 AVOutputStream **ost_table, int nb_ostreams,
1180 const AVPacket *pkt)
1181 {
1182 AVFormatContext *os;
1183 AVOutputStream *ost;
1184 int ret, i;
1185 uint8_t *data_buf;
1186 int data_size, got_picture;
1187 AVFrame picture;
1188 void *buffer_to_free;
1189 static unsigned int samples_size= 0;
1190 AVSubtitle subtitle, *subtitle_to_free;
1191 int got_subtitle;
1192 AVPacket avpkt;
1193
1194 if(ist->next_pts == AV_NOPTS_VALUE)
1195 ist->next_pts= ist->pts;
1196
1197 if (pkt == NULL) {
1198 /* EOF handling */
1199 av_init_packet(&avpkt);
1200 avpkt.data = NULL;
1201 avpkt.size = 0;
1202 goto handle_eof;
1203 } else {
1204 avpkt = *pkt;
1205 }
1206
1207 if(pkt->dts != AV_NOPTS_VALUE)
1208 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1209
1210 //while we have more to decode or while the decoder did output something on EOF
1211 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1212 handle_eof:
1213 ist->pts= ist->next_pts;
1214
1215 if(avpkt.size && avpkt.size != pkt->size && verbose>0)
1216 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1217
1218 /* decode the packet if needed */
1219 data_buf = NULL; /* fail safe */
1220 data_size = 0;
1221 subtitle_to_free = NULL;
1222 if (ist->decoding_needed) {
1223 switch(ist->st->codec->codec_type) {
1224 case CODEC_TYPE_AUDIO:{
1225 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1226 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1227 av_free(samples);
1228 samples= av_malloc(samples_size);
1229 }
1230 data_size= samples_size;
1231 /* XXX: could avoid copy if PCM 16 bits with same
1232 endianness as CPU */
1233 ret = avcodec_decode_audio3(ist->st->codec, samples, &data_size,
1234 &avpkt);
1235 if (ret < 0)
1236 goto fail_decode;
1237 avpkt.data += ret;
1238 avpkt.size -= ret;
1239 /* Some bug in mpeg audio decoder gives */
1240 /* data_size < 0, it seems they are overflows */
1241 if (data_size <= 0) {
1242 /* no audio frame */
1243 continue;
1244 }
1245 data_buf = (uint8_t *)samples;
1246 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1247 (ist->st->codec->sample_rate * ist->st->codec->channels);
1248 break;}
1249 case CODEC_TYPE_VIDEO:
1250 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1251 /* XXX: allocate picture correctly */
1252 avcodec_get_frame_defaults(&picture);
1253
1254 ret = avcodec_decode_video2(ist->st->codec,
1255 &picture, &got_picture, &avpkt);
1256 ist->st->quality= picture.quality;
1257 if (ret < 0)
1258 goto fail_decode;
1259 if (!got_picture) {
1260 /* no picture yet */
1261 goto discard_packet;
1262 }
1263 if (ist->st->codec->time_base.num != 0) {
1264 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1265 ist->next_pts += ((int64_t)AV_TIME_BASE *
1266 ist->st->codec->time_base.num * ticks) /
1267 ist->st->codec->time_base.den;
1268 }
1269 avpkt.size = 0;
1270 break;
1271 case CODEC_TYPE_SUBTITLE:
1272 ret = avcodec_decode_subtitle2(ist->st->codec,
1273 &subtitle, &got_subtitle, &avpkt);
1274 if (ret < 0)
1275 goto fail_decode;
1276 if (!got_subtitle) {
1277 goto discard_packet;
1278 }
1279 subtitle_to_free = &subtitle;
1280 avpkt.size = 0;
1281 break;
1282 default:
1283 goto fail_decode;
1284 }
1285 } else {
1286 switch(ist->st->codec->codec_type) {
1287 case CODEC_TYPE_AUDIO:
1288 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1289 ist->st->codec->sample_rate;
1290 break;
1291 case CODEC_TYPE_VIDEO:
1292 if (ist->st->codec->time_base.num != 0) {
1293 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1294 ist->next_pts += ((int64_t)AV_TIME_BASE *
1295 ist->st->codec->time_base.num * ticks) /
1296 ist->st->codec->time_base.den;
1297 }
1298 break;
1299 }
1300 data_buf = avpkt.data;
1301 data_size = avpkt.size;
1302 ret = avpkt.size;
1303 avpkt.size = 0;
1304 }
1305
1306 buffer_to_free = NULL;
1307 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1308 pre_process_video_frame(ist, (AVPicture *)&picture,
1309 &buffer_to_free);
1310 }
1311
1312 // preprocess audio (volume)
1313 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1314 if (audio_volume != 256) {
1315 short *volp;
1316 volp = samples;
1317 for(i=0;i<(data_size / sizeof(short));i++) {
1318 int v = ((*volp) * audio_volume + 128) >> 8;
1319 if (v < -32768) v = -32768;
1320 if (v > 32767) v = 32767;
1321 *volp++ = v;
1322 }
1323 }
1324 }
1325
1326 /* frame rate emulation */
1327 if (rate_emu) {
1328 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1329 int64_t now = av_gettime() - ist->start;
1330 if (pts > now)
1331 usleep(pts - now);
1332 }
1333
1334 /* if output time reached then transcode raw format,
1335 encode packets and output them */
1336 if (start_time == 0 || ist->pts >= start_time)
1337 for(i=0;i<nb_ostreams;i++) {
1338 int frame_size;
1339
1340 ost = ost_table[i];
1341 if (ost->source_index == ist_index) {
1342 os = output_files[ost->file_index];
1343
1344 #if 0
1345 printf("%d: got pts=%0.3f %0.3f\n", i,
1346 (double)pkt->pts / AV_TIME_BASE,
1347 ((double)ist->pts / AV_TIME_BASE) -
1348 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1349 #endif
1350 /* set the input output pts pairs */
1351 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1352
1353 if (ost->encoding_needed) {
1354 switch(ost->st->codec->codec_type) {
1355 case CODEC_TYPE_AUDIO:
1356 do_audio_out(os, ost, ist, data_buf, data_size);
1357 break;
1358 case CODEC_TYPE_VIDEO:
1359 do_video_out(os, ost, ist, &picture, &frame_size);
1360 if (vstats_filename && frame_size)
1361 do_video_stats(os, ost, frame_size);
1362 break;
1363 case CODEC_TYPE_SUBTITLE:
1364 do_subtitle_out(os, ost, ist, &subtitle,
1365 pkt->pts);
1366 break;
1367 default:
1368 abort();
1369 }
1370 } else {
1371 AVFrame avframe; //FIXME/XXX remove this
1372 AVPacket opkt;
1373 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1374
1375 av_init_packet(&opkt);
1376
1377 if ((!ost->frame_number && !(pkt->flags & PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1378 continue;
1379
1380 /* no reencoding needed : output the packet directly */
1381 /* force the input stream PTS */
1382
1383 avcodec_get_frame_defaults(&avframe);
1384 ost->st->codec->coded_frame= &avframe;
1385 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1386
1387 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1388 audio_size += data_size;
1389 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1390 video_size += data_size;
1391 ost->sync_opts++;
1392 }
1393
1394 opkt.stream_index= ost->index;
1395 if(pkt->pts != AV_NOPTS_VALUE)
1396 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1397 else
1398 opkt.pts= AV_NOPTS_VALUE;
1399
1400 if (pkt->dts == AV_NOPTS_VALUE)
1401 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1402 else
1403 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1404 opkt.dts -= ost_tb_start_time;
1405
1406 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1407 opkt.flags= pkt->flags;
1408
1409 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1410 if(ost->st->codec->codec_id != CODEC_ID_H264) {
1411 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1412 opkt.destruct= av_destruct_packet;
1413 } else {
1414 opkt.data = data_buf;
1415 opkt.size = data_size;
1416 }
1417
1418 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1419 ost->st->codec->frame_number++;
1420 ost->frame_number++;
1421 av_free_packet(&opkt);
1422 }
1423 }
1424 }
1425 av_free(buffer_to_free);
1426 /* XXX: allocate the subtitles in the codec ? */
1427 if (subtitle_to_free) {
1428 if (subtitle_to_free->rects != NULL) {
1429 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1430 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1431 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1432 av_freep(&subtitle_to_free->rects[i]);
1433 }
1434 av_freep(&subtitle_to_free->rects);
1435 }
1436 subtitle_to_free->num_rects = 0;
1437 subtitle_to_free = NULL;
1438 }
1439 }
1440 discard_packet:
1441 if (pkt == NULL) {
1442 /* EOF handling */
1443
1444 for(i=0;i<nb_ostreams;i++) {
1445 ost = ost_table[i];
1446 if (ost->source_index == ist_index) {
1447 AVCodecContext *enc= ost->st->codec;
1448 os = output_files[ost->file_index];
1449
1450 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1451 continue;
1452 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1453 continue;
1454
1455 if (ost->encoding_needed) {
1456 for(;;) {
1457 AVPacket pkt;
1458 int fifo_bytes;
1459 av_init_packet(&pkt);
1460 pkt.stream_index= ost->index;
1461
1462 switch(ost->st->codec->codec_type) {
1463 case CODEC_TYPE_AUDIO:
1464 fifo_bytes = av_fifo_size(ost->fifo);
1465 ret = 0;
1466 /* encode any samples remaining in fifo */
1467 if (fifo_bytes > 0) {
1468 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1469 int fs_tmp = enc->frame_size;
1470
1471 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1472 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1473 enc->frame_size = fifo_bytes / (osize * enc->channels);
1474 } else { /* pad */
1475 int frame_bytes = enc->frame_size*osize*enc->channels;
1476 if (samples_size < frame_bytes)
1477 av_exit(1);
1478 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1479 }
1480
1481 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1482 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1483 ost->st->time_base.num, enc->sample_rate);
1484 enc->frame_size = fs_tmp;
1485 }
1486 if(ret <= 0) {
1487 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1488 }
1489 if (ret < 0) {
1490 fprintf(stderr, "Audio encoding failed\n");
1491 av_exit(1);
1492 }
1493 audio_size += ret;
1494 pkt.flags |= PKT_FLAG_KEY;
1495 break;
1496 case CODEC_TYPE_VIDEO:
1497 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1498 if (ret < 0) {
1499 fprintf(stderr, "Video encoding failed\n");
1500 av_exit(1);
1501 }
1502 video_size += ret;
1503 if(enc->coded_frame && enc->coded_frame->key_frame)
1504 pkt.flags |= PKT_FLAG_KEY;
1505 if (ost->logfile && enc->stats_out) {
1506 fprintf(ost->logfile, "%s", enc->stats_out);
1507 }
1508 break;
1509 default:
1510 ret=-1;
1511 }
1512
1513 if(ret<=0)
1514 break;
1515 pkt.data= bit_buffer;
1516 pkt.size= ret;
1517 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1518 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1519 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1520 }
1521 }
1522 }
1523 }
1524 }
1525
1526 return 0;
1527 fail_decode:
1528 return -1;
1529 }
1530
1531 static void print_sdp(AVFormatContext **avc, int n)
1532 {
1533 char sdp[2048];
1534
1535 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1536 printf("SDP:\n%s\n", sdp);
1537 fflush(stdout);
1538 }
1539
1540 static int stream_index_from_inputs(AVFormatContext **input_files,
1541 int nb_input_files,
1542 AVInputFile *file_table,
1543 AVInputStream **ist_table,
1544 enum CodecType type,
1545 int programid)
1546 {
1547 int p, q, z;
1548 for(z=0; z<nb_input_files; z++) {
1549 AVFormatContext *ic = input_files[z];
1550 for(p=0; p<ic->nb_programs; p++) {
1551 AVProgram *program = ic->programs[p];
1552 if(program->id != programid)
1553 continue;
1554 for(q=0; q<program->nb_stream_indexes; q++) {
1555 int sidx = program->stream_index[q];
1556 int ris = file_table[z].ist_index + sidx;
1557 if(ist_table[ris]->discard && ic->streams[sidx]->codec->codec_type == type)
1558 return ris;
1559 }
1560 }
1561 }
1562
1563 return -1;
1564 }
1565
1566 /*
1567 * The following code is the main loop of the file converter
1568 */
1569 static int av_encode(AVFormatContext **output_files,
1570 int nb_output_files,
1571 AVFormatContext **input_files,
1572 int nb_input_files,
1573 AVStreamMap *stream_maps, int nb_stream_maps)
1574 {
1575 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1576 AVFormatContext *is, *os;
1577 AVCodecContext *codec, *icodec;
1578 AVOutputStream *ost, **ost_table = NULL;
1579 AVInputStream *ist, **ist_table = NULL;
1580 AVInputFile *file_table;
1581 char error[1024];
1582 int key;
1583 int want_sdp = 1;
1584 uint8_t no_packet[MAX_FILES]={0};
1585 int no_packet_count=0;
1586
1587 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1588 if (!file_table)
1589 goto fail;
1590
1591 /* input stream init */
1592 j = 0;
1593 for(i=0;i<nb_input_files;i++) {
1594 is = input_files[i];
1595 file_table[i].ist_index = j;
1596 file_table[i].nb_streams = is->nb_streams;
1597 j += is->nb_streams;
1598 }
1599 nb_istreams = j;
1600
1601 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1602 if (!ist_table)
1603 goto fail;
1604
1605 for(i=0;i<nb_istreams;i++) {
1606 ist = av_mallocz(sizeof(AVInputStream));
1607 if (!ist)
1608 goto fail;
1609 ist_table[i] = ist;
1610 }
1611 j = 0;
1612 for(i=0;i<nb_input_files;i++) {
1613 is = input_files[i];
1614 for(k=0;k<is->nb_streams;k++) {
1615 ist = ist_table[j++];
1616 ist->st = is->streams[k];
1617 ist->file_index = i;
1618 ist->index = k;
1619 ist->discard = 1; /* the stream is discarded by default
1620 (changed later) */
1621
1622 if (rate_emu) {
1623 ist->start = av_gettime();
1624 }
1625 }
1626 }
1627
1628 /* output stream init */
1629 nb_ostreams = 0;
1630 for(i=0;i<nb_output_files;i++) {
1631 os = output_files[i];
1632 if (!os->nb_streams) {
1633 dump_format(output_files[i], i, output_files[i]->filename, 1);
1634 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1635 av_exit(1);
1636 }
1637 nb_ostreams += os->nb_streams;
1638 }
1639 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1640 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1641 av_exit(1);
1642 }
1643
1644 /* Sanity check the mapping args -- do the input files & streams exist? */
1645 for(i=0;i<nb_stream_maps;i++) {
1646 int fi = stream_maps[i].file_index;
1647 int si = stream_maps[i].stream_index;
1648
1649 if (fi < 0 || fi > nb_input_files - 1 ||
1650 si < 0 || si > file_table[fi].nb_streams - 1) {
1651 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1652 av_exit(1);
1653 }
1654 fi = stream_maps[i].sync_file_index;
1655 si = stream_maps[i].sync_stream_index;
1656 if (fi < 0 || fi > nb_input_files - 1 ||
1657 si < 0 || si > file_table[fi].nb_streams - 1) {
1658 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1659 av_exit(1);
1660 }
1661 }
1662
1663 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1664 if (!ost_table)
1665 goto fail;
1666 for(i=0;i<nb_ostreams;i++) {
1667 ost = av_mallocz(sizeof(AVOutputStream));
1668 if (!ost)
1669 goto fail;
1670 ost_table[i] = ost;
1671 }
1672
1673 n = 0;
1674 for(k=0;k<nb_output_files;k++) {
1675 os = output_files[k];
1676 for(i=0;i<os->nb_streams;i++,n++) {
1677 int found;
1678 ost = ost_table[n];
1679 ost->file_index = k;
1680 ost->index = i;
1681 ost->st = os->streams[i];
1682 if (nb_stream_maps > 0) {
1683 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1684 stream_maps[n].stream_index;
1685
1686 /* Sanity check that the stream types match */
1687 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1688 int i= ost->file_index;
1689 dump_format(output_files[i], i, output_files[i]->filename, 1);
1690 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1691 stream_maps[n].file_index, stream_maps[n].stream_index,
1692 ost->file_index, ost->index);
1693 av_exit(1);
1694 }
1695
1696 } else {
1697 if(opt_programid) {
1698 found = 0;
1699 j = stream_index_from_inputs(input_files, nb_input_files, file_table, ist_table, ost->st->codec->codec_type, opt_programid);
1700 if(j != -1) {
1701 ost->source_index = j;
1702 found = 1;
1703 }
1704 } else {
1705 /* get corresponding input stream index : we select the first one with the right type */
1706 found = 0;
1707 for(j=0;j<nb_istreams;j++) {
1708 ist = ist_table[j];
1709 if (ist->discard &&
1710 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1711 ost->source_index = j;
1712 found = 1;
1713 break;
1714 }
1715 }
1716 }
1717
1718 if (!found) {
1719 if(! opt_programid) {
1720 /* try again and reuse existing stream */
1721 for(j=0;j<nb_istreams;j++) {
1722 ist = ist_table[j];
1723 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1724 ost->source_index = j;
1725 found = 1;
1726 }
1727 }
1728 }
1729 if (!found) {
1730 int i= ost->file_index;
1731 dump_format(output_files[i], i, output_files[i]->filename, 1);
1732 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1733 ost->file_index, ost->index);
1734 av_exit(1);
1735 }
1736 }
1737 }
1738 ist = ist_table[ost->source_index];
1739 ist->discard = 0;
1740 ost->sync_ist = (nb_stream_maps > 0) ?
1741 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1742 stream_maps[n].sync_stream_index] : ist;
1743 }
1744 }
1745
1746 /* for each output stream, we compute the right encoding parameters */
1747 for(i=0;i<nb_ostreams;i++) {
1748 AVMetadataTag *lang;
1749 ost = ost_table[i];
1750 os = output_files[ost->file_index];
1751 ist = ist_table[ost->source_index];
1752
1753 codec = ost->st->codec;
1754 icodec = ist->st->codec;
1755
1756 if ((lang=av_metadata_get(ist->st->metadata, "language", NULL, 0))
1757 && !av_metadata_get(ost->st->metadata, "language", NULL, 0))
1758 av_metadata_set(&ost->st->metadata, "language", lang->value);
1759
1760 ost->st->disposition = ist->st->disposition;
1761 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1762 codec->chroma_sample_location = icodec->chroma_sample_location;
1763
1764 if (ost->st->stream_copy) {
1765 /* if stream_copy is selected, no need to decode or encode */
1766 codec->codec_id = icodec->codec_id;
1767 codec->codec_type = icodec->codec_type;
1768
1769 if(!codec->codec_tag){
1770 if( !os->oformat->codec_tag
1771 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) > 0
1772 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1773 codec->codec_tag = icodec->codec_tag;
1774 }
1775
1776 codec->bit_rate = icodec->bit_rate;
1777 codec->extradata= icodec->extradata;
1778 codec->extradata_size= icodec->extradata_size;
1779 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){
1780 codec->time_base = icodec->time_base;
1781 codec->time_base.num *= icodec->ticks_per_frame;
1782 }else
1783 codec->time_base = ist->st->time_base;
1784 switch(codec->codec_type) {
1785 case CODEC_TYPE_AUDIO:
1786 if(audio_volume != 256) {
1787 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1788 av_exit(1);
1789 }
1790 codec->channel_layout = icodec->channel_layout;
1791 codec->sample_rate = icodec->sample_rate;
1792 codec->channels = icodec->channels;
1793 codec->frame_size = icodec->frame_size;
1794 codec->block_align= icodec->block_align;
1795 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1796 codec->block_align= 0;
1797 if(codec->codec_id == CODEC_ID_AC3)
1798 codec->block_align= 0;
1799 break;
1800 case CODEC_TYPE_VIDEO:
1801 codec->pix_fmt = icodec->pix_fmt;
1802 codec->width = icodec->width;
1803 codec->height = icodec->height;
1804 codec->has_b_frames = icodec->has_b_frames;
1805 break;
1806 case CODEC_TYPE_SUBTITLE:
1807 codec->width = icodec->width;
1808 codec->height = icodec->height;
1809 break;
1810 default:
1811 abort();
1812 }
1813 } else {
1814 switch(codec->codec_type) {
1815 case CODEC_TYPE_AUDIO:
1816 ost->fifo= av_fifo_alloc(1024);
1817 if(!ost->fifo)
1818 goto fail;
1819 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1820 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1821 icodec->request_channels = codec->channels;
1822 ist->decoding_needed = 1;
1823 ost->encoding_needed = 1;
1824 break;
1825 case CODEC_TYPE_VIDEO:
1826 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1827 fprintf(stderr, "Video pixel format is unknown, stream cannot be decoded\n");
1828 av_exit(1);
1829 }
1830 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1831 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1832 ost->video_resample = ((codec->width != icodec->width -
1833 (frame_leftBand + frame_rightBand) +
1834 (frame_padleft + frame_padright)) ||
1835 (codec->height != icodec->height -
1836 (frame_topBand + frame_bottomBand) +
1837 (frame_padtop + frame_padbottom)) ||
1838 (codec->pix_fmt != icodec->pix_fmt));
1839 if (ost->video_crop) {
1840 ost->topBand = frame_topBand;
1841 ost->leftBand = frame_leftBand;
1842 }
1843 if (ost->video_pad) {
1844 ost->padtop = frame_padtop;
1845 ost->padleft = frame_padleft;
1846 ost->padbottom = frame_padbottom;
1847 ost->padright = frame_padright;
1848 if (!ost->video_resample) {
1849 avcodec_get_frame_defaults(&ost->pict_tmp);
1850 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1851 codec->width, codec->height))
1852 goto fail;
1853 }
1854 }
1855 if (ost->video_resample) {
1856 avcodec_get_frame_defaults(&ost->pict_tmp);
1857 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1858 codec->width, codec->height)) {
1859 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1860 av_exit(1);
1861 }
1862 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1863 ost->img_resample_ctx = sws_getContext(
1864 icodec->width - (frame_leftBand + frame_rightBand),
1865 icodec->height - (frame_topBand + frame_bottomBand),
1866 icodec->pix_fmt,
1867 codec->width - (frame_padleft + frame_padright),
1868 codec->height - (frame_padtop + frame_padbottom),
1869 codec->pix_fmt,
1870 sws_flags, NULL, NULL, NULL);
1871 if (ost->img_resample_ctx == NULL) {
1872 fprintf(stderr, "Cannot get resampling context\n");
1873 av_exit(1);
1874 }
1875 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1876 codec->bits_per_raw_sample= 0;
1877 }
1878 ost->encoding_needed = 1;
1879 ist->decoding_needed = 1;
1880 break;
1881 case CODEC_TYPE_SUBTITLE:
1882 ost->encoding_needed = 1;
1883 ist->decoding_needed = 1;
1884 break;
1885 default:
1886 abort();
1887 break;
1888 }
1889 /* two pass mode */
1890 if (ost->encoding_needed &&
1891 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1892 char logfilename[1024];
1893 FILE *f;
1894 int size;
1895 char *logbuffer;
1896
1897 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1898 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1899 i);
1900 if (codec->flags & CODEC_FLAG_PASS1) {
1901 f = fopen(logfilename, "w");
1902 if (!f) {
1903 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
1904 av_exit(1);
1905 }
1906 ost->logfile = f;
1907 } else {
1908 /* read the log file */
1909 f = fopen(logfilename, "r");
1910 if (!f) {
1911 fprintf(stderr, "Cannot read log file '%s' for pass-2 encoding: %s\n", logfilename, strerror(errno));
1912 av_exit(1);
1913 }
1914 fseek(f, 0, SEEK_END);
1915 size = ftell(f);
1916 fseek(f, 0, SEEK_SET);
1917 logbuffer = av_malloc(size + 1);
1918 if (!logbuffer) {
1919 fprintf(stderr, "Could not allocate log buffer\n");
1920 av_exit(1);
1921 }
1922 size = fread(logbuffer, 1, size, f);
1923 fclose(f);
1924 logbuffer[size] = '\0';
1925 codec->stats_in = logbuffer;
1926 }
1927 }
1928 }
1929 if(codec->codec_type == CODEC_TYPE_VIDEO){
1930 int size= codec->width * codec->height;
1931 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
1932 }
1933 }
1934
1935 if (!bit_buffer)
1936 bit_buffer = av_malloc(bit_buffer_size);
1937 if (!bit_buffer) {
1938 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
1939 bit_buffer_size);
1940 ret = AVERROR(ENOMEM);
1941 goto fail;
1942 }
1943
1944 /* open each encoder */
1945 for(i=0;i<nb_ostreams;i++) {
1946 ost = ost_table[i];
1947 if (ost->encoding_needed) {
1948 AVCodec *codec = output_codecs[i];
1949 if (!codec)
1950 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1951 if (!codec) {
1952 snprintf(error, sizeof(error), "Unsupported codec for output stream #%d.%d",
1953 ost->file_index, ost->index);
1954 ret = AVERROR(EINVAL);
1955 goto dump_format;
1956 }
1957 if (avcodec_open(ost->st->codec, codec) < 0) {
1958 snprintf(error, sizeof(error), "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1959 ost->file_index, ost->index);
1960 ret = AVERROR(EINVAL);
1961 goto dump_format;
1962 }
1963 extra_size += ost->st->codec->extradata_size;
1964 }
1965 }
1966
1967 /* open each decoder */
1968 for(i=0;i<nb_istreams;i++) {
1969 ist = ist_table[i];
1970 if (ist->decoding_needed) {
1971 AVCodec *codec = input_codecs[i];
1972 if (!codec)
1973 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1974 if (!codec) {
1975 snprintf(error, sizeof(error), "Unsupported codec (id=%d) for input stream #%d.%d",
1976 ist->st->codec->codec_id, ist->file_index, ist->index);
1977 ret = AVERROR(EINVAL);
1978 goto dump_format;
1979 }
1980 if (avcodec_open(ist->st->codec, codec) < 0) {
1981 snprintf(error, sizeof(error), "Error while opening codec for input stream #%d.%d",
1982 ist->file_index, ist->index);
1983 ret = AVERROR(EINVAL);
1984 goto dump_format;
1985 }
1986 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1987 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1988 }
1989 }
1990
1991 /* init pts */
1992 for(i=0;i<nb_istreams;i++) {
1993 ist = ist_table[i];
1994 ist->pts = 0;
1995 ist->next_pts = AV_NOPTS_VALUE;
1996 ist->is_start = 1;
1997 }
1998
1999 /* set meta data information from input file if required */
2000 for (i=0;i<nb_meta_data_maps;i++) {
2001 AVFormatContext *out_file;
2002 AVFormatContext *in_file;
2003 AVMetadataTag *mtag;
2004
2005 int out_file_index = meta_data_maps[i].out_file;
2006 int in_file_index = meta_data_maps[i].in_file;
2007 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2008 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2009 out_file_index, out_file_index, in_file_index);
2010 ret = AVERROR(EINVAL);
2011 goto dump_format;
2012 }
2013 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2014 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2015 in_file_index, out_file_index, in_file_index);
2016 ret = AVERROR(EINVAL);
2017 goto dump_format;
2018 }
2019
2020 out_file = output_files[out_file_index];
2021 in_file = input_files[in_file_index];
2022
2023
2024 mtag=NULL;
2025 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2026 av_metadata_set(&out_file->metadata, mtag->key, mtag->value);
2027 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2028 in_file->iformat->metadata_conv);
2029 }
2030
2031 /* open files and write file headers */
2032 for(i=0;i<nb_output_files;i++) {
2033 os = output_files[i];
2034 if (av_write_header(os) < 0) {
2035 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2036 ret = AVERROR(EINVAL);
2037 goto dump_format;
2038 }
2039 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2040 want_sdp = 0;
2041 }
2042 }
2043
2044 dump_format:
2045 /* dump the file output parameters - cannot be done before in case
2046 of stream copy */
2047 for(i=0;i<nb_output_files;i++) {
2048 dump_format(output_files[i], i, output_files[i]->filename, 1);
2049 }
2050
2051 /* dump the stream mapping */
2052 if (verbose >= 0) {
2053 fprintf(stderr, "Stream mapping:\n");
2054 for(i=0;i<nb_ostreams;i++) {
2055 ost = ost_table[i];
2056 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2057 ist_table[ost->source_index]->file_index,
2058 ist_table[ost->source_index]->index,
2059 ost->file_index,
2060 ost->index);
2061 if (ost->sync_ist != ist_table[ost->source_index])
2062 fprintf(stderr, " [sync #%d.%d]",
2063 ost->sync_ist->file_index,
2064 ost->sync_ist->index);
2065 fprintf(stderr, "\n");
2066 }
2067 }
2068
2069 if (ret) {
2070 fprintf(stderr, "%s\n", error);
2071 goto fail;
2072 }
2073
2074 if (want_sdp) {
2075 print_sdp(output_files, nb_output_files);
2076 }
2077
2078 if (!using_stdin && verbose >= 0) {
2079 fprintf(stderr, "Press [q] to stop encoding\n");
2080 url_set_interrupt_cb(decode_interrupt_cb);
2081 }
2082 term_init();
2083
2084 timer_start = av_gettime();
2085
2086 for(; received_sigterm == 0;) {
2087 int file_index, ist_index;
2088 AVPacket pkt;
2089 double ipts_min;
2090 double opts_min;
2091
2092 redo:
2093 ipts_min= 1e100;
2094 opts_min= 1e100;
2095 /* if 'q' pressed, exits */
2096 if (!using_stdin) {
2097 if (q_pressed)
2098 break;
2099 /* read_key() returns 0 on EOF */
2100 key = read_key();
2101 if (key == 'q')
2102 break;
2103 }
2104
2105 /* select the stream that we must read now by looking at the
2106 smallest output pts */
2107 file_index = -1;
2108 for(i=0;i<nb_ostreams;i++) {
2109 double ipts, opts;
2110 ost = ost_table[i];
2111 os = output_files[ost->file_index];
2112 ist = ist_table[ost->source_index];
2113 if(no_packet[ist->file_index])
2114 continue;
2115 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
2116 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2117 else
2118 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2119 ipts = (double)ist->pts;
2120 if (!file_table[ist->file_index].eof_reached){
2121 if(ipts < ipts_min) {
2122 ipts_min = ipts;
2123 if(input_sync ) file_index = ist->file_index;
2124 }
2125 if(opts < opts_min) {
2126 opts_min = opts;
2127 if(!input_sync) file_index = ist->file_index;
2128 }
2129 }
2130 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2131 file_index= -1;
2132 break;
2133 }
2134 }
2135 /* if none, if is finished */
2136 if (file_index < 0) {
2137 if(no_packet_count){
2138 no_packet_count=0;
2139 memset(no_packet, 0, sizeof(no_packet));
2140 usleep(10000);
2141 continue;
2142 }
2143 break;
2144 }
2145
2146 /* finish if recording time exhausted */
2147 if (opts_min >= (recording_time / 1000000.0))
2148 break;
2149
2150 /* finish if limit size exhausted */
2151 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2152 break;
2153
2154 /* read a frame from it and output it in the fifo */
2155 is = input_files[file_index];
2156 ret= av_read_frame(is, &pkt);
2157 if(ret == AVERROR(EAGAIN)){
2158 no_packet[file_index]=1;
2159 no_packet_count++;
2160 continue;
2161 }
2162 if (ret < 0) {
2163 file_table[file_index].eof_reached = 1;
2164 if (opt_shortest)
2165 break;
2166 else
2167 continue;
2168 }
2169
2170 no_packet_count=0;
2171 memset(no_packet, 0, sizeof(no_packet));
2172
2173 if (do_pkt_dump) {
2174 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2175 }
2176 /* the following test is needed in case new streams appear
2177 dynamically in stream : we ignore them */
2178 if (pkt.stream_index >= file_table[file_index].nb_streams)
2179 goto discard_packet;
2180 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2181 ist = ist_table[ist_index];
2182 if (ist->discard)
2183 goto discard_packet;
2184
2185 if (pkt.dts != AV_NOPTS_VALUE)
2186 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2187 if (pkt.pts != AV_NOPTS_VALUE)
2188 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2189
2190 if(input_files_ts_scale[file_index][pkt.stream_index]){
2191 if(pkt.pts != AV_NOPTS_VALUE)
2192 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2193 if(pkt.dts != AV_NOPTS_VALUE)
2194 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2195 }
2196
2197 // 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);
2198 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2199 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2200 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2201 int64_t delta= pkt_dts - ist->next_pts;
2202 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2203 input_files_ts_offset[ist->file_index]-= delta;
2204 if (verbose > 2)
2205 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2206 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2207 if(pkt.pts != AV_NOPTS_VALUE)
2208 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2209 }
2210 }
2211
2212 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2213 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2214
2215 if (verbose >= 0)
2216 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2217 ist->file_index, ist->index);
2218 if (exit_on_error)
2219 av_exit(1);
2220 av_free_packet(&pkt);
2221 goto redo;
2222 }
2223
2224 discard_packet:
2225 av_free_packet(&pkt);
2226
2227 /* dump report by using the output first video and audio streams */
2228 print_report(output_files, ost_table, nb_ostreams, 0);
2229 }
2230
2231 /* at the end of stream, we must flush the decoder buffers */
2232 for(i=0;i<nb_istreams;i++) {
2233 ist = ist_table[i];
2234 if (ist->decoding_needed) {
2235 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2236 }
2237 }
2238
2239 term_exit();
2240
2241 /* write the trailer if needed and close file */
2242 for(i=0;i<nb_output_files;i++) {
2243 os = output_files[i];
2244 av_write_trailer(os);
2245 }
2246
2247 /* dump report by using the first video and audio streams */
2248 print_report(output_files, ost_table, nb_ostreams, 1);
2249
2250 /* close each encoder */
2251 for(i=0;i<nb_ostreams;i++) {
2252 ost = ost_table[i];
2253 if (ost->encoding_needed) {
2254 av_freep(&ost->st->codec->stats_in);
2255 avcodec_close(ost->st->codec);
2256 }
2257 }
2258
2259 /* close each decoder */
2260 for(i=0;i<nb_istreams;i++) {
2261 ist = ist_table[i];
2262 if (ist->decoding_needed) {
2263 avcodec_close(ist->st->codec);
2264 }
2265 }
2266
2267 /* finished ! */
2268 ret = 0;
2269
2270 fail:
2271 av_freep(&bit_buffer);
2272 av_free(file_table);
2273
2274 if (ist_table) {
2275 for(i=0;i<nb_istreams;i++) {
2276 ist = ist_table[i];
2277 av_free(ist);
2278 }
2279 av_free(ist_table);
2280 }
2281 if (ost_table) {
2282 for(i=0;i<nb_ostreams;i++) {
2283 ost = ost_table[i];
2284 if (ost) {
2285 if (ost->logfile) {
2286 fclose(ost->logfile);
2287 ost->logfile = NULL;
2288 }
2289 av_fifo_free(ost->fifo); /* works even if fifo is not
2290 initialized but set to zero */
2291 av_free(ost->pict_tmp.data[0]);
2292 if (ost->video_resample)
2293 sws_freeContext(ost->img_resample_ctx);
2294 if (ost->resample)
2295 audio_resample_close(ost->resample);
2296 if (ost->reformat_ctx)
2297 av_audio_convert_free(ost->reformat_ctx);
2298 av_free(ost);
2299 }
2300 }
2301 av_free(ost_table);
2302 }
2303 return ret;
2304 }
2305
2306 #if 0
2307 int file_read(const char *filename)
2308 {
2309 URLContext *h;
2310 unsigned char buffer[1024];
2311 int len, i;
2312
2313 if (url_open(&h, filename, O_RDONLY) < 0) {
2314 printf("could not open '%s'\n", filename);
2315 return -1;
2316 }
2317 for(;;) {
2318 len = url_read(h, buffer, sizeof(buffer));
2319 if (len <= 0)
2320 break;
2321 for(i=0;i<len;i++) putchar(buffer[i]);
2322 }
2323 url_close(h);
2324 return 0;
2325 }
2326 #endif
2327
2328 static void opt_format(const char *arg)
2329 {
2330 /* compatibility stuff for pgmyuv */
2331 if (!strcmp(arg, "pgmyuv")) {
2332 pgmyuv_compatibility_hack=1;
2333 // opt_image_format(arg);
2334 arg = "image2";
2335 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2336 }
2337
2338 file_iformat = av_find_input_format(arg);
2339 file_oformat = guess_format(arg, NULL, NULL);
2340 if (!file_iformat && !file_oformat) {
2341 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2342 av_exit(1);
2343 }
2344 }
2345
2346 static void opt_video_rc_override_string(const char *arg)
2347 {
2348 video_rc_override_string = arg;
2349 }
2350
2351 static int opt_me_threshold(const char *opt, const char *arg)
2352 {
2353 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2354 return 0;
2355 }
2356
2357 static int opt_loglevel(const char *opt, const char *arg)
2358 {
2359 const struct { const char *name; int level; } const log_levels[] = {
2360 { "quiet" , AV_LOG_QUIET },
2361 { "panic" , AV_LOG_PANIC },
2362 { "fatal" , AV_LOG_FATAL },
2363 { "error" , AV_LOG_ERROR },
2364 { "warning", AV_LOG_WARNING },
2365 { "info" , AV_LOG_INFO },
2366 { "verbose", AV_LOG_VERBOSE },
2367 { "debug" , AV_LOG_DEBUG },
2368 };
2369 char *tail;
2370 int level;
2371 int i;
2372
2373 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
2374 if (!strcmp(log_levels[i].name, arg)) {
2375 av_log_set_level(log_levels[i].level);
2376 return 0;
2377 }
2378 }
2379
2380 level = strtol(arg, &tail, 10);
2381 if (*tail) {
2382 fprintf(stderr, "Invalid loglevel \"%s\". "
2383 "Possible levels are numbers or:\n", arg);
2384 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
2385 fprintf(stderr, "\"%s\"\n", log_levels[i].name);
2386 av_exit(1);
2387 }
2388 av_log_set_level(level);
2389 return 0;
2390 }
2391
2392 static int opt_verbose(const char *opt, const char *arg)
2393 {
2394 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2395 return 0;
2396 }
2397
2398 static int opt_frame_rate(const char *opt, const char *arg)
2399 {
2400 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2401 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2402 av_exit(1);
2403 }
2404 return 0;
2405 }
2406
2407 static int opt_bitrate(const char *opt, const char *arg)
2408 {
2409 int codec_type = opt[0]=='a' ? CODEC_TYPE_AUDIO : CODEC_TYPE_VIDEO;
2410
2411 opt_default(opt, arg);
2412
2413 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2414 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2415
2416 return 0;
2417 }
2418
2419 static void opt_frame_crop_top(const char *arg)
2420 {
2421 frame_topBand = atoi(arg);
2422 if (frame_topBand < 0) {
2423 fprintf(stderr, "Incorrect top crop size\n");
2424 av_exit(1);
2425 }
2426 if ((frame_topBand) >= frame_height){
2427 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2428 av_exit(1);
2429 }
2430 frame_height -= frame_topBand;
2431 }
2432
2433 static void opt_frame_crop_bottom(const char *arg)
2434 {
2435 frame_bottomBand = atoi(arg);
2436 if (frame_bottomBand < 0) {
2437 fprintf(stderr, "Incorrect bottom crop size\n");
2438 av_exit(1);
2439 }
2440 if ((frame_bottomBand) >= frame_height){
2441 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2442 av_exit(1);
2443 }
2444 frame_height -= frame_bottomBand;
2445 }
2446
2447 static void opt_frame_crop_left(const char *arg)
2448 {
2449 frame_leftBand = atoi(arg);
2450 if (frame_leftBand < 0) {
2451 fprintf(stderr, "Incorrect left crop size\n");
2452 av_exit(1);
2453 }
2454 if ((frame_leftBand) >= frame_width){
2455 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2456 av_exit(1);
2457 }
2458 frame_width -= frame_leftBand;
2459 }
2460
2461 static void opt_frame_crop_right(const char *arg)
2462 {
2463 frame_rightBand = atoi(arg);
2464 if (frame_rightBand < 0) {
2465 fprintf(stderr, "Incorrect right crop size\n");
2466 av_exit(1);
2467 }
2468 if ((frame_rightBand) >= frame_width){
2469 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2470 av_exit(1);
2471 }
2472 frame_width -= frame_rightBand;
2473 }
2474
2475 static void opt_frame_size(const char *arg)
2476 {
2477 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2478 fprintf(stderr, "Incorrect frame size\n");
2479 av_exit(1);
2480 }
2481 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2482 fprintf(stderr, "Frame size must be a multiple of 2\n");
2483 av_exit(1);
2484 }
2485 }
2486
2487 static void opt_pad_color(const char *arg) {
2488 /* Input is expected to be six hex digits similar to
2489 how colors are expressed in html tags (but without the #) */
2490 int rgb = strtol(arg, NULL, 16);
2491 int r,g,b;
2492
2493 r = (rgb >> 16);
2494 g = ((rgb >> 8) & 255);
2495 b = (rgb & 255);
2496
2497 padcolor[0] = RGB_TO_Y(r,g,b);
2498 padcolor[1] = RGB_TO_U(r,g,b,0);
2499 padcolor[2] = RGB_TO_V(r,g,b,0);
2500 }
2501
2502 static void opt_frame_pad_top(const char *arg)
2503 {
2504 frame_padtop = atoi(arg);
2505 if (frame_padtop < 0) {
2506 fprintf(stderr, "Incorrect top pad size\n");
2507 av_exit(1);
2508 }
2509 }
2510
2511 static void opt_frame_pad_bottom(const char *arg)
2512 {
2513 frame_padbottom = atoi(arg);
2514 if (frame_padbottom < 0) {
2515 fprintf(stderr, "Incorrect bottom pad size\n");
2516 av_exit(1);
2517 }
2518 }
2519
2520
2521 static void opt_frame_pad_left(const char *arg)
2522 {
2523 frame_padleft = atoi(arg);
2524 if (frame_padleft < 0) {
2525 fprintf(stderr, "Incorrect left pad size\n");
2526 av_exit(1);
2527 }
2528 }
2529
2530
2531 static void opt_frame_pad_right(const char *arg)
2532 {
2533 frame_padright = atoi(arg);
2534 if (frame_padright < 0) {
2535 fprintf(stderr, "Incorrect right pad size\n");
2536 av_exit(1);
2537 }
2538 }
2539
2540 static void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts)
2541 {
2542 int i;
2543 char fmt_str[128];
2544 for (i=-1; i < nb_fmts; i++) {
2545 get_fmt_string (fmt_str, sizeof(fmt_str), i);
2546 fprintf(stdout, "%s\n", fmt_str);
2547 }
2548 }
2549
2550 static void opt_frame_pix_fmt(const char *arg)
2551 {
2552 if (strcmp(arg, "list")) {
2553 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2554 if (frame_pix_fmt == PIX_FMT_NONE) {
2555 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2556 av_exit(1);
2557 }
2558 } else {
2559 list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
2560 av_exit(0);
2561 }
2562 }
2563
2564 static void opt_frame_aspect_ratio(const char *arg)
2565 {
2566 int x = 0, y = 0;
2567 double ar = 0;
2568 const char *p;
2569 char *end;
2570
2571 p = strchr(arg, ':');
2572 if (p) {
2573 x = strtol(arg, &end, 10);
2574 if (end == p)
2575 y = strtol(end+1, &end, 10);
2576 if (x > 0 && y > 0)
2577 ar = (double)x / (double)y;
2578 } else
2579 ar = strtod(arg, NULL);
2580
2581 if (!ar) {
2582 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2583 av_exit(1);
2584 }
2585 frame_aspect_ratio = ar;
2586 }
2587
2588 static int opt_metadata(const char *opt, const char *arg)
2589 {
2590 char *mid= strchr(arg, '=');
2591
2592 if(!mid){
2593 fprintf(stderr, "Missing =\n");
2594 av_exit(1);
2595 }
2596 *mid++= 0;
2597
2598 metadata_count++;
2599 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2600 metadata[metadata_count-1].key = av_strdup(arg);
2601 metadata[metadata_count-1].value= av_strdup(mid);
2602
2603 return 0;
2604 }
2605
2606 static void opt_qscale(const char *arg)
2607 {
2608 video_qscale = atof(arg);
2609 if (video_qscale <= 0 ||
2610 video_qscale > 255) {
2611 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2612 av_exit(1);
2613 }
2614 }
2615
2616 static void opt_top_field_first(const char *arg)
2617 {
2618 top_field_first= atoi(arg);
2619 }
2620
2621 static int opt_thread_count(const char *opt, const char *arg)
2622 {
2623 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2624 #if !HAVE_THREADS
2625 if (verbose >= 0)
2626 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2627 #endif
2628 return 0;
2629 }
2630
2631 static void opt_audio_sample_fmt(const char *arg)
2632 {
2633 if (strcmp(arg, "list"))
2634 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2635 else {
2636 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2637 av_exit(0);
2638 }
2639 }
2640
2641 static int opt_audio_rate(const char *opt, const char *arg)
2642 {
2643 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2644 return 0;
2645 }
2646
2647 static int opt_audio_channels(const char *opt, const char *arg)
2648 {
2649 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2650 return 0;
2651 }
2652
2653 static void opt_video_channel(const char *arg)
2654 {
2655 video_channel = strtol(arg, NULL, 0);
2656 }
2657
2658 static void opt_video_standard(const char *arg)
2659 {
2660 video_standard = av_strdup(arg);
2661 }
2662
2663 static void opt_codec(int *pstream_copy, char **pcodec_name,
2664 int codec_type, const char *arg)
2665 {
2666 av_freep(pcodec_name);
2667 if (!strcmp(arg, "copy")) {
2668 *pstream_copy = 1;
2669 } else {
2670 *pcodec_name = av_strdup(arg);
2671 }
2672 }
2673
2674 static void opt_audio_codec(const char *arg)
2675 {
2676 opt_codec(&audio_stream_copy, &audio_codec_name, CODEC_TYPE_AUDIO, arg);
2677 }
2678
2679 static void opt_audio_tag(const char *arg)
2680 {
2681 char *tail;
2682 audio_codec_tag= strtol(arg, &tail, 0);
2683
2684 if(!tail || *tail)
2685 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2686 }
2687
2688 static void opt_video_tag(const char *arg)
2689 {
2690 char *tail;
2691 video_codec_tag= strtol(arg, &tail, 0);
2692
2693 if(!tail || *tail)
2694 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2695 }
2696
2697 static void opt_video_codec(const char *arg)
2698 {
2699 opt_codec(&video_stream_copy, &video_codec_name, CODEC_TYPE_VIDEO, arg);
2700 }
2701
2702 static void opt_subtitle_codec(const char *arg)
2703 {
2704 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, CODEC_TYPE_SUBTITLE, arg);
2705 }
2706
2707 static void opt_subtitle_tag(const char *arg)
2708 {
2709 char *tail;
2710 subtitle_codec_tag= strtol(arg, &tail, 0);
2711
2712 if(!tail || *tail)
2713 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2714 }
2715
2716 static void opt_map(const char *arg)
2717 {
2718 AVStreamMap *m;
2719 char *p;
2720
2721 m = &stream_maps[nb_stream_maps++];
2722
2723 m->file_index = strtol(arg, &p, 0);
2724 if (*p)
2725 p++;
2726
2727 m->stream_index = strtol(p, &p, 0);
2728 if (*p) {
2729 p++;
2730 m->sync_file_index = strtol(p, &p, 0);
2731 if (*p)
2732 p++;
2733 m->sync_stream_index = strtol(p, &p, 0);
2734 } else {
2735 m->sync_file_index = m->file_index;
2736 m->sync_stream_index = m->stream_index;
2737 }
2738 }
2739
2740 static void opt_map_meta_data(const char *arg)
2741 {
2742 AVMetaDataMap *m;
2743 char *p;
2744
2745 m = &meta_data_maps[nb_meta_data_maps++];
2746
2747 m->out_file = strtol(arg, &p, 0);
2748 if (*p)
2749 p++;
2750
2751 m->in_file = strtol(p, &p, 0);
2752 }
2753
2754 static void opt_input_ts_scale(const char *arg)
2755 {
2756 unsigned int stream;
2757 double scale;
2758 char *p;
2759
2760 stream = strtol(arg, &p, 0);
2761 if (*p)
2762 p++;
2763 scale= strtod(p, &p);
2764
2765 if(stream >= MAX_STREAMS)
2766 av_exit(1);
2767
2768 input_files_ts_scale[nb_input_files][stream]= scale;
2769 }
2770
2771 static int opt_recording_time(const char *opt, const char *arg)
2772 {
2773 recording_time = parse_time_or_die(opt, arg, 1);
2774 return 0;
2775 }
2776
2777 static int opt_start_time(const char *opt, const char *arg)
2778 {
2779 start_time = parse_time_or_die(opt, arg, 1);
2780 return 0;
2781 }
2782
2783 static int opt_rec_timestamp(const char *opt, const char *arg)
2784 {
2785 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2786 return 0;
2787 }
2788
2789 static int opt_input_ts_offset(const char *opt, const char *arg)
2790 {
2791 input_ts_offset = parse_time_or_die(opt, arg, 1);
2792 return 0;
2793 }
2794
2795 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2796 {
2797 const char *codec_string = encoder ? "encoder" : "decoder";
2798 AVCodec *codec;
2799
2800 if(!name)
2801 return CODEC_ID_NONE;
2802 codec = encoder ?
2803 avcodec_find_encoder_by_name(name) :
2804 avcodec_find_decoder_by_name(name);
2805 if(!codec) {
2806 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2807 av_exit(1);
2808 }
2809 if(codec->type != type) {
2810 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2811 av_exit(1);
2812 }
2813 return codec->id;
2814 }
2815
2816 static void opt_input_file(const char *filename)
2817 {
2818 AVFormatContext *ic;
2819 AVFormatParameters params, *ap = &params;
2820 int err, i, ret, rfps, rfps_base;
2821 int64_t timestamp;
2822
2823 if (!strcmp(filename, "-"))
2824 filename = "pipe:";
2825
2826 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2827 !strcmp(filename, "/dev/stdin");
2828
2829 /* get default parameters from command line */
2830 ic = avformat_alloc_context();
2831
2832 memset(ap, 0, sizeof(*ap));
2833 ap->prealloced_context = 1;
2834 ap->sample_rate = audio_sample_rate;
2835 ap->channels = audio_channels;
2836 ap->time_base.den = frame_rate.num;
2837 ap->time_base.num = frame_rate.den;
2838 ap->width = frame_width + frame_padleft + frame_padright;
2839 ap->height = frame_height + frame_padtop + frame_padbottom;
2840 ap->pix_fmt = frame_pix_fmt;
2841 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2842 ap->channel = video_channel;
2843 ap->standard = video_standard;
2844 ap->video_codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 0);
2845 ap->audio_codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 0);
2846 if(pgmyuv_compatibility_hack)
2847 ap->video_codec_id= CODEC_ID_PGMYUV;
2848
2849 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2850
2851 ic->video_codec_id = find_codec_or_die(video_codec_name , CODEC_TYPE_VIDEO , 0);
2852 ic->audio_codec_id = find_codec_or_die(audio_codec_name , CODEC_TYPE_AUDIO , 0);
2853 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 0);
2854 ic->flags |= AVFMT_FLAG_NONBLOCK;
2855
2856 /* open the input file with generic libav function */
2857 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2858 if (err < 0) {
2859 print_error(filename, err);
2860 av_exit(1);
2861 }
2862 if(opt_programid) {
2863 int i;
2864 for(i=0; i<ic->nb_programs; i++)
2865 if(ic->programs[i]->id != opt_programid)
2866 ic->programs[i]->discard = AVDISCARD_ALL;
2867 }
2868
2869 ic->loop_input = loop_input;
2870
2871 /* If not enough info to get the stream parameters, we decode the
2872 first frames to get it. (used in mpeg case for example) */
2873 ret = av_find_stream_info(ic);
2874 if (ret < 0 && verbose >= 0) {
2875 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2876 av_exit(1);
2877 }
2878
2879 timestamp = start_time;
2880 /* add the stream start time */
2881 if (ic->start_time != AV_NOPTS_VALUE)
2882 timestamp += ic->start_time;
2883
2884 /* if seeking requested, we execute it */
2885 if (start_time != 0) {
2886 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2887 if (ret < 0) {
2888 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2889 filename, (double)timestamp / AV_TIME_BASE);
2890 }
2891 /* reset seek info */
2892 start_time = 0;
2893 }
2894
2895 /* update the current parameters so that they match the one of the input stream */
2896 for(i=0;i<ic->nb_streams;i++) {
2897 AVCodecContext *enc = ic->streams[i]->codec;
2898 if(thread_count>1)
2899 avcodec_thread_init(enc, thread_count);
2900 enc->thread_count= thread_count;
2901 switch(enc->codec_type) {
2902 case CODEC_TYPE_AUDIO:
2903 set_context_opts(enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2904 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2905 channel_layout = enc->channel_layout;
2906 audio_channels = enc->channels;
2907 audio_sample_rate = enc->sample_rate;
2908 audio_sample_fmt = enc->sample_fmt;
2909 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
2910 if(audio_disable)
2911 ic->streams[i]->discard= AVDISCARD_ALL;
2912 break;
2913 case CODEC_TYPE_VIDEO:
2914 set_context_opts(enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
2915 frame_height = enc->height;
2916 frame_width = enc->width;
2917 if(ic->streams[i]->sample_aspect_ratio.num)
2918 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
2919 else
2920 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
2921 frame_aspect_ratio *= (float) enc->width / enc->height;
2922 frame_pix_fmt = enc->pix_fmt;
2923 rfps = ic->streams[i]->r_frame_rate.num;
2924 rfps_base = ic->streams[i]->r_frame_rate.den;
2925 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2926 if(me_threshold)
2927 enc->debug |= FF_DEBUG_MV;
2928
2929 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2930
2931 if (verbose >= 0)
2932 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2933 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2934
2935 (float)rfps / rfps_base, rfps, rfps_base);
2936 }
2937 /* update the current frame rate to match the stream frame rate */
2938 frame_rate.num = rfps;
2939 frame_rate.den = rfps_base;
2940
2941 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
2942 if(video_disable)
2943 ic->streams[i]->discard= AVDISCARD_ALL;
2944 else if(video_discard)
2945 ic->streams[i]->discard= video_discard;
2946 break;
2947 case CODEC_TYPE_DATA:
2948 break;
2949 case CODEC_TYPE_SUBTITLE:
2950 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
2951 if(subtitle_disable)
2952 ic->streams[i]->discard = AVDISCARD_ALL;
2953 break;
2954 case CODEC_TYPE_ATTACHMENT:
2955 case CODEC_TYPE_UNKNOWN:
2956 nb_icodecs++;
2957 break;
2958 default:
2959 abort();
2960 }
2961 }
2962
2963 input_files[nb_input_files] = ic;
2964 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2965 /* dump the file content */
2966 if (verbose >= 0)
2967 dump_format(ic, nb_input_files, filename, 0);
2968
2969 nb_input_files++;
2970 file_iformat = NULL;
2971 file_oformat = NULL;
2972
2973 video_channel = 0;
2974
2975 av_freep(&video_codec_name);
2976 av_freep(&audio_codec_name);
2977 av_freep(&subtitle_codec_name);
2978 }
2979
2980 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
2981 int *has_subtitle_ptr)
2982 {
2983 int has_video, has_audio, has_subtitle, i, j;
2984 AVFormatContext *ic;
2985
2986 has_video = 0;
2987 has_audio = 0;
2988 has_subtitle = 0;
2989 for(j=0;j<nb_input_files;j++) {
2990 ic = input_files[j];
2991 for(i=0;i<ic->nb_streams;i++) {
2992 AVCodecContext *enc = ic->streams[i]->codec;
2993 switch(enc->codec_type) {
2994 case CODEC_TYPE_AUDIO:
2995 has_audio = 1;
2996 break;
2997 case CODEC_TYPE_VIDEO:
2998 has_video = 1;
2999 break;
3000 case CODEC_TYPE_SUBTITLE:
3001 has_subtitle = 1;
3002 break;
3003 case CODEC_TYPE_DATA:
3004 case CODEC_TYPE_ATTACHMENT:
3005 case CODEC_TYPE_UNKNOWN:
3006 break;
3007 default:
3008 abort();
3009 }
3010 }
3011 }
3012 *has_video_ptr = has_video;
3013 *has_audio_ptr = has_audio;
3014 *has_subtitle_ptr = has_subtitle;
3015 }
3016
3017 static void new_video_stream(AVFormatContext *oc)
3018 {
3019 AVStream *st;
3020 AVCodecContext *video_enc;
3021 int codec_id;
3022
3023 st = av_new_stream(oc, oc->nb_streams);
3024 if (!st) {
3025 fprintf(stderr, "Could not alloc stream\n");
3026 av_exit(1);
3027 }
3028 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
3029 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3030 video_bitstream_filters= NULL;
3031
3032 if(thread_count>1)
3033 avcodec_thread_init(st->codec, thread_count);
3034
3035 video_enc = st->codec;
3036
3037 if(video_codec_tag)
3038 video_enc->codec_tag= video_codec_tag;
3039
3040 if( (video_global_header&1)
3041 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3042 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3043 avcodec_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3044 }
3045 if(video_global_header&2){
3046 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3047 avcodec_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3048 }
3049
3050 if (video_stream_copy) {
3051 st->stream_copy = 1;
3052 video_enc->codec_type = CODEC_TYPE_VIDEO;
3053 video_enc->sample_aspect_ratio =
3054 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3055 } else {
3056 const char *p;
3057 int i;
3058 AVCodec *codec;
3059 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3060
3061 if (video_codec_name) {
3062 codec_id = find_codec_or_die(video_codec_name, CODEC_TYPE_VIDEO, 1);
3063 codec = avcodec_find_encoder_by_name(video_codec_name);
3064 output_codecs[nb_ocodecs] = codec;
3065 } else {
3066 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3067 codec = avcodec_find_encoder(codec_id);
3068 }
3069
3070 video_enc->codec_id = codec_id;
3071
3072 set_context_opts(video_enc, avcodec_opts[CODEC_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3073
3074 if (codec && codec->supported_framerates && !force_fps)
3075 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3076 video_enc->time_base.den = fps.num;
3077 video_enc->time_base.num = fps.den;
3078
3079 video_enc->width = frame_width + frame_padright + frame_padleft;
3080 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3081 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3082 video_enc->pix_fmt = frame_pix_fmt;
3083 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3084
3085 if(codec && codec->pix_fmts){
3086 const enum PixelFormat *p= codec->pix_fmts;
3087 for(; *p!=-1; p++){
3088 if(*p == video_enc->pix_fmt)
3089 break;
3090 }
3091 if(*p == -1)
3092 video_enc->pix_fmt = codec->pix_fmts[0];
3093 }
3094
3095 if (intra_only)
3096 video_enc->gop_size = 0;
3097 if (video_qscale || same_quality) {
3098 video_enc->flags |= CODEC_FLAG_QSCALE;
3099 video_enc->global_quality=
3100 st->quality = FF_QP2LAMBDA * video_qscale;
3101 }
3102
3103 if(intra_matrix)
3104 video_enc->intra_matrix = intra_matrix;
3105 if(inter_matrix)
3106 video_enc->inter_matrix = inter_matrix;
3107
3108 video_enc->thread_count = thread_count;
3109 p= video_rc_override_string;
3110 for(i=0; p; i++){
3111 int start, end, q;
3112 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3113 if(e!=3){
3114 fprintf(stderr, "error parsing rc_override\n");
3115 av_exit(1);
3116 }
3117 video_enc->rc_override=
3118 av_realloc(video_enc->rc_override,
3119 sizeof(RcOverride)*(i+1));
3120 video_enc->rc_override[i].start_frame= start;
3121 video_enc->rc_override[i].end_frame = end;
3122 if(q>0){
3123 video_enc->rc_override[i].qscale= q;
3124 video_enc->rc_override[i].quality_factor= 1.0;
3125 }
3126 else{
3127 video_enc->rc_override[i].qscale= 0;
3128 video_enc->rc_override[i].quality_factor= -q/100.0;
3129 }
3130 p= strchr(p, '/');
3131 if(p) p++;
3132 }
3133 video_enc->rc_override_count=i;
3134 if (!video_enc->rc_initial_buffer_occupancy)
3135 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3136 video_enc->me_threshold= me_threshold;
3137 video_enc->intra_dc_precision= intra_dc_precision - 8;
3138
3139 if (do_psnr)
3140 video_enc->flags|= CODEC_FLAG_PSNR;
3141
3142 /* two pass mode */
3143 if (do_pass) {
3144 if (do_pass == 1) {
3145 video_enc->flags |= CODEC_FLAG_PASS1;
3146 } else {
3147 video_enc->flags |= CODEC_FLAG_PASS2;
3148 }
3149 }
3150 }
3151 nb_ocodecs++;
3152
3153 /* reset some key parameters */
3154 video_disable = 0;
3155 av_freep(&video_codec_name);
3156 video_stream_copy = 0;
3157 }
3158
3159 static void new_audio_stream(AVFormatContext *oc)
3160 {
3161 AVStream *st;
3162 AVCodecContext *audio_enc;
3163 int codec_id;
3164
3165 st = av_new_stream(oc, oc->nb_streams);
3166 if (!st) {
3167 fprintf(stderr, "Could not alloc stream\n");
3168 av_exit(1);
3169 }
3170 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
3171
3172 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3173 audio_bitstream_filters= NULL;
3174
3175 if(thread_count>1)
3176 avcodec_thread_init(st->codec, thread_count);
3177
3178 audio_enc = st->codec;
3179 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3180
3181 if(audio_codec_tag)
3182 audio_enc->codec_tag= audio_codec_tag;
3183
3184 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3185 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3186 avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3187 }
3188 if (audio_stream_copy) {
3189 st->stream_copy = 1;
3190 audio_enc->channels = audio_channels;
3191 } else {
3192 AVCodec *codec;
3193
3194 set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3195
3196 if (audio_codec_name) {
3197 codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
3198 codec = avcodec_find_encoder_by_name(audio_codec_name);
3199 output_codecs[nb_ocodecs] = codec;
3200 } else {
3201 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3202 codec = avcodec_find_encoder(codec_id);
3203 }
3204 audio_enc->codec_id = codec_id;
3205
3206 if (audio_qscale > QSCALE_NONE) {
3207 audio_enc->flags |= CODEC_FLAG_QSCALE;
3208 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3209 }
3210 audio_enc->thread_count = thread_count;
3211 audio_enc->channels = audio_channels;
3212 audio_enc->sample_fmt = audio_sample_fmt;
3213 audio_enc->channel_layout = channel_layout;
3214 if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3215 audio_enc->channel_layout = 0;
3216
3217 if(codec && codec->sample_fmts){
3218 const enum SampleFormat *p= codec->sample_fmts;
3219 for(; *p!=-1; p++){
3220 if(*p == audio_enc->sample_fmt)
3221 break;
3222 }
3223 if(*p == -1)
3224 audio_enc->sample_fmt = codec->sample_fmts[0];
3225 }
3226 }
3227 nb_ocodecs++;
3228 audio_enc->sample_rate = audio_sample_rate;
3229 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3230 if (audio_language) {
3231 av_metadata_set(&st->metadata, "language", audio_language);
3232 av_free(audio_language);
3233 audio_language = NULL;
3234 }
3235
3236 /* reset some key parameters */
3237 audio_disable = 0;
3238 av_freep(&audio_codec_name);
3239 audio_stream_copy = 0;
3240 }
3241
3242 static void new_subtitle_stream(AVFormatContext *oc)
3243 {
3244 AVStream *st;
3245 AVCodecContext *subtitle_enc;
3246
3247 st = av_new_stream(oc, oc->nb_streams);
3248 if (!st) {
3249 fprintf(stderr, "Could not alloc stream\n");
3250 av_exit(1);
3251 }
3252 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
3253
3254 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3255 subtitle_bitstream_filters= NULL;
3256
3257 subtitle_enc = st->codec;
3258 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3259
3260 if(subtitle_codec_tag)
3261 subtitle_enc->codec_tag= subtitle_codec_tag;
3262
3263 if (subtitle_stream_copy) {
3264 st->stream_copy = 1;
3265 } else {
3266 set_context_opts(avcodec_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3267 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
3268 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3269 }
3270 nb_ocodecs++;
3271
3272 if (subtitle_language) {
3273 av_metadata_set(&st->metadata, "language", subtitle_language);
3274 av_free(subtitle_language);
3275 subtitle_language = NULL;
3276 }
3277
3278 subtitle_disable = 0;
3279 av_freep(&subtitle_codec_name);
3280 subtitle_stream_copy = 0;
3281 }
3282
3283 static void opt_new_audio_stream(void)
3284 {
3285 AVFormatContext *oc;
3286 if (nb_output_files <= 0) {
3287 fprintf(stderr, "At least one output file must be specified\n");
3288 av_exit(1);
3289 }
3290 oc = output_files[nb_output_files - 1];
3291 new_audio_stream(oc);
3292 }
3293
3294 static void opt_new_video_stream(void)
3295 {
3296 AVFormatContext *oc;
3297 if (nb_output_files <= 0) {
3298 fprintf(stderr, "At least one output file must be specified\n");
3299 av_exit(1);
3300 }
3301 oc = output_files[nb_output_files - 1];
3302 new_video_stream(oc);
3303 }
3304
3305 static void opt_new_subtitle_stream(void)
3306 {
3307 AVFormatContext *oc;
3308 if (nb_output_files <= 0) {
3309 fprintf(stderr, "At least one output file must be specified\n");
3310 av_exit(1);
3311 }
3312 oc = output_files[nb_output_files - 1];
3313 new_subtitle_stream(oc);
3314 }
3315
3316 static void opt_output_file(const char *filename)
3317 {
3318 AVFormatContext *oc;
3319 int use_video, use_audio, use_subtitle;
3320 int input_has_video, input_has_audio, input_has_subtitle;
3321 AVFormatParameters params, *ap = &params;
3322
3323 if (!strcmp(filename, "-"))
3324 filename = "pipe:";
3325
3326 oc = avformat_alloc_context();
3327
3328 if (!file_oformat) {
3329 file_oformat = guess_format(NULL, filename, NULL);
3330 if (!file_oformat) {
3331 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3332 filename);
3333 av_exit(1);
3334 }
3335 }
3336
3337 oc->oformat = file_oformat;
3338 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3339
3340 if (!strcmp(file_oformat->name, "ffm") &&
3341 av_strstart(filename, "http:", NULL)) {
3342 /* special case for files sent to ffserver: we get the stream
3343 parameters from ffserver */
3344 int err = read_ffserver_streams(oc, filename);
3345 if (err < 0) {
3346 print_error(filename, err);
3347 av_exit(1);
3348 }
3349 } else {
3350 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3351 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3352 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3353
3354 /* disable if no corresponding type found and at least one
3355 input file */
3356 if (nb_input_files > 0) {
3357 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3358 &input_has_subtitle);
3359 if (!input_has_video)
3360 use_video = 0;
3361 if (!input_has_audio)
3362 use_audio = 0;
3363 if (!input_has_subtitle)
3364 use_subtitle = 0;
3365 }
3366
3367 /* manual disable */
3368 if (audio_disable) {
3369 use_audio = 0;
3370 }
3371 if (video_disable) {
3372 use_video = 0;
3373 }
3374 if (subtitle_disable) {
3375 use_subtitle = 0;
3376 }
3377
3378 if (use_video) {
3379 new_video_stream(oc);
3380 }
3381
3382 if (use_audio) {
3383 new_audio_stream(oc);
3384 }
3385
3386 if (use_subtitle) {
3387 new_subtitle_stream(oc);
3388 }
3389
3390 oc->timestamp = rec_timestamp;
3391
3392 for(; metadata_count>0; metadata_count--){
3393 av_metadata_set(&oc->metadata, metadata[metadata_count-1].key,
3394 metadata[metadata_count-1].value);
3395 }
3396 av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
3397 }
3398
3399 output_files[nb_output_files++] = oc;
3400
3401 /* check filename in case of an image number is expected */
3402 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3403 if (!av_filename_number_test(oc->filename)) {
3404 print_error(oc->filename, AVERROR_NUMEXPECTED);
3405 av_exit(1);
3406 }
3407 }
3408
3409 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3410 /* test if it already exists to avoid loosing precious files */
3411 if (!file_overwrite &&
3412 (strchr(filename, ':') == NULL ||
3413 filename[1] == ':' ||
3414 av_strstart(filename, "file:", NULL))) {
3415 if (url_exist(filename)) {
3416 if (!using_stdin) {
3417 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3418 fflush(stderr);
3419 if (!read_yesno()) {
3420 fprintf(stderr, "Not overwriting - exiting\n");
3421 av_exit(1);
3422 }
3423 }
3424 else {
3425 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3426 av_exit(1);
3427 }
3428 }
3429 }
3430
3431 /* open the file */
3432 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
3433 fprintf(stderr, "Could not open '%s'\n", filename);
3434 av_exit(1);
3435 }
3436 }
3437
3438 memset(ap, 0, sizeof(*ap));
3439 if (av_set_parameters(oc, ap) < 0) {
3440 fprintf(stderr, "%s: Invalid encoding parameters\n",
3441 oc->filename);
3442 av_exit(1);
3443 }
3444
3445 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3446 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3447 oc->loop_output = loop_output;
3448 oc->flags |= AVFMT_FLAG_NONBLOCK;
3449
3450 set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
3451
3452 /* reset some options */
3453 file_oformat = NULL;
3454 file_iformat = NULL;
3455 }
3456
3457 /* same option as mencoder */
3458 static void opt_pass(const char *pass_str)
3459 {
3460 int pass;
3461 pass = atoi(pass_str);
3462 if (pass != 1 && pass != 2) {
3463 fprintf(stderr, "pass number can be only 1 or 2\n");
3464 av_exit(1);
3465 }
3466 do_pass = pass;
3467 }
3468
3469 static int64_t getutime(void)
3470 {
3471 #if HAVE_GETRUSAGE
3472 struct rusage rusage;
3473
3474 getrusage(RUSAGE_SELF, &rusage);
3475 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3476 #elif HAVE_GETPROCESSTIMES
3477 HANDLE proc;
3478 FILETIME c, e, k, u;
3479 proc = GetCurrentProcess();
3480 GetProcessTimes(proc, &c, &e, &k, &u);
3481 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3482 #else
3483 return av_gettime();
3484 #endif
3485 }
3486
3487 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3488 {
3489 int i;
3490 const char *p = str;
3491 for(i = 0;; i++) {
3492 dest[i] = atoi(p);
3493 if(i == 63)
3494 break;
3495 p = strchr(p, ',');
3496 if(!p) {
3497 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3498 av_exit(1);
3499 }
3500 p++;
3501 }
3502 }
3503
3504 static void opt_inter_matrix(const char *arg)
3505 {
3506 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3507 parse_matrix_coeffs(inter_matrix, arg);
3508 }
3509
3510 static void opt_intra_matrix(const char *arg)
3511 {
3512 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3513 parse_matrix_coeffs(intra_matrix, arg);
3514 }
3515
3516 /**
3517 * Trivial log callback.
3518 * Only suitable for show_help and similar since it lacks prefix handling.
3519 */
3520 static void log_callback_help(void* ptr, int level, const char* fmt, va_list vl)
3521 {
3522 vfprintf(stdout, fmt, vl);
3523 }
3524
3525 static void show_help(void)
3526 {
3527 av_log_set_callback(log_callback_help);
3528 printf("usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...\n"
3529 "Hyper fast Audio and Video encoder\n");
3530 printf("\n");
3531 show_help_options(options, "Main options:\n",
3532 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3533 show_help_options(options, "\nAdvanced options:\n",
3534 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3535 OPT_EXPERT);
3536 show_help_options(options, "\nVideo options:\n",
3537 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3538 OPT_VIDEO);
3539 show_help_options(options, "\nAdvanced Video options:\n",
3540 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3541 OPT_VIDEO | OPT_EXPERT);
3542 show_help_options(options, "\nAudio options:\n",
3543 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3544 OPT_AUDIO);
3545 show_help_options(options, "\nAdvanced Audio options:\n",
3546 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3547 OPT_AUDIO | OPT_EXPERT);
3548 show_help_options(options, "\nSubtitle options:\n",
3549 OPT_SUBTITLE | OPT_GRAB,
3550 OPT_SUBTITLE);
3551 show_help_options(options, "\nAudio/Video grab options:\n",
3552 OPT_GRAB,
3553 OPT_GRAB);
3554 printf("\n");
3555 av_opt_show(avcodec_opts[0], NULL);
3556 printf("\n");
3557 av_opt_show(avformat_opts, NULL);
3558 printf("\n");
3559 av_opt_show(sws_opts, NULL);
3560 }
3561
3562 static void opt_target(const char *arg)
3563 {
3564 int norm = -1;
3565 static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3566
3567 if(!strncmp(arg, "pal-", 4)) {
3568 norm = 0;
3569 arg += 4;
3570 } else if(!strncmp(arg, "ntsc-", 5)) {
3571 norm = 1;
3572 arg += 5;
3573 } else if(!strncmp(arg, "film-", 5)) {
3574 norm = 2;
3575 arg += 5;
3576 } else {
3577 int fr;
3578 /* Calculate FR via float to avoid int overflow */
3579 fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
3580 if(fr == 25000) {
3581 norm = 0;
3582 } else if((fr == 29970) || (fr == 23976)) {
3583 norm = 1;
3584 } else {
3585 /* Try to determine PAL/NTSC by peeking in the input files */
3586 if(nb_input_files) {
3587 int i, j;
3588 for(j = 0; j < nb_input_files; j++) {
3589 for(i = 0; i < input_files[j]->nb_streams; i++) {
3590 AVCodecContext *c = input_files[j]->streams[i]->codec;
3591 if(c->codec_type != CODEC_TYPE_VIDEO)
3592 continue;
3593 fr = c->time_base.den * 1000 / c->time_base.num;
3594 if(fr == 25000) {
3595 norm = 0;
3596 break;
3597 } else if((fr == 29970) || (fr == 23976)) {
3598 norm = 1;
3599 break;
3600 }
3601 }
3602 if(norm >= 0)
3603 break;
3604 }
3605 }
3606 }
3607 if(verbose && norm >= 0)
3608 fprintf(stderr, "Assuming %s for target.\n", norm ? "NTSC" : "PAL");
3609 }
3610
3611 if(norm < 0) {
3612 fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
3613 fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
3614 fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
3615 av_exit(1);
3616 }
3617
3618 if(!strcmp(arg, "vcd")) {
3619
3620 opt_video_codec("mpeg1video");
3621 opt_audio_codec("mp2");
3622 opt_format("vcd");
3623
3624 opt_frame_size(norm ? "352x240" : "352x288");
3625 opt_frame_rate(NULL, frame_rates[norm]);
3626 opt_default("gop", norm ? "18" : "15");
3627
3628 opt_default("b", "1150000");
3629 opt_default("maxrate", "1150000");
3630 opt_default("minrate", "1150000");
3631 opt_default("bufsize", "327680"); // 40*1024*8;
3632
3633 opt_default("ab", "224000");
3634 audio_sample_rate = 44100;
3635 audio_channels = 2;
3636
3637 opt_default("packetsize", "2324");
3638 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
3639
3640 /* We have to offset the PTS, so that it is consistent with the SCR.
3641 SCR starts at 36000, but the first two packs contain only padding
3642 and the first pack from the other stream, respectively, may also have
3643 been written before.
3644 So the real data starts at SCR 36000+3*1200. */
3645 mux_preload= (36000+3*1200) / 90000.0; //0.44
3646 } else if(!strcmp(arg, "svcd")) {
3647
3648 opt_video_codec("mpeg2video");
3649 opt_audio_codec("mp2");
3650 opt_format("svcd");
3651
3652 opt_frame_size(norm ? "480x480" : "480x576");
3653 opt_frame_rate(NULL, frame_rates[norm]);
3654 opt_default("gop", norm ? "18" : "15");
3655
3656 opt_default("b", "2040000");
3657 opt_default("maxrate", "2516000");
3658 opt_default("minrate", "0"); //1145000;
3659 opt_default("bufsize", "1835008"); //224*1024*8;
3660 opt_default("flags", "+scan_offset");
3661
3662
3663 opt_default("ab", "224000");
3664 audio_sample_rate = 44100;
3665
3666 opt_default("packetsize", "2324");
3667
3668 } else if(!strcmp(arg, "dvd")) {
3669
3670 opt_video_codec("mpeg2video");
3671 opt_audio_codec("ac3");
3672 opt_format("dvd");
3673
3674 opt_frame_size(norm ? "720x480" : "720x576");
3675 opt_frame_rate(NULL, frame_rates[norm]);
3676 opt_default("gop", norm ? "18" : "15");
3677
3678 opt_default("b", "6000000");
3679 opt_default("maxrate", "9000000");
3680 opt_default("minrate", "0"); //1500000;
3681 opt_default("bufsize", "1835008"); //224*1024*8;
3682
3683 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
3684 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
3685
3686 opt_default("ab", "448000");
3687 audio_sample_rate = 48000;
3688
3689 } else if(!strncmp(arg, "dv", 2)) {
3690
3691 opt_format("dv");
3692
3693 opt_frame_size(norm ? "720x480" : "720x576");
3694 opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :
3695 (norm ? "yuv411p" : "yuv420p"));
3696 opt_frame_rate(NULL, frame_rates[norm]);
3697
3698 audio_sample_rate = 48000;
3699 audio_channels = 2;
3700
3701 } else {
3702 fprintf(stderr, "Unknown target: %s\n", arg);
3703 av_exit(1);
3704 }
3705 }
3706
3707 static void opt_vstats_file (const char *arg)
3708 {
3709 av_free (vstats_filename);
3710 vstats_filename=av_strdup (arg);
3711 }