cmdutils: add support for caller-provided option context.
[libav.git] / ffmpeg.c
1 /*
2 * ffmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int file_index;
83 int stream_index;
84 int sync_file_index;
85 int sync_stream_index;
86 } StreamMap;
87
88 /**
89 * select an input file for an output file
90 */
91 typedef struct MetadataMap {
92 int file; ///< file index
93 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94 int index; ///< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98 int in_file;
99 int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105
106 static const char *last_asked_format = NULL;
107 static double *ts_scale;
108 static int nb_ts_scale;
109
110 static AVFormatContext *output_files[MAX_FILES];
111 static AVDictionary *output_opts[MAX_FILES];
112 static int nb_output_files = 0;
113
114 static StreamMap *stream_maps = NULL;
115 static int nb_stream_maps;
116
117 /* first item specifies output metadata, second is input */
118 static MetadataMap (*meta_data_maps)[2] = NULL;
119 static int nb_meta_data_maps;
120 static int metadata_global_autocopy = 1;
121 static int metadata_streams_autocopy = 1;
122 static int metadata_chapters_autocopy = 1;
123
124 static ChapterMap *chapter_maps = NULL;
125 static int nb_chapter_maps;
126
127 /* indexed by output file stream index */
128 static int *streamid_map = NULL;
129 static int nb_streamid_map = 0;
130
131 static int frame_width = 0;
132 static int frame_height = 0;
133 static float frame_aspect_ratio = 0;
134 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
135 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
136 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
137 static AVRational frame_rate;
138 static float video_qscale = 0;
139 static uint16_t *intra_matrix = NULL;
140 static uint16_t *inter_matrix = NULL;
141 static const char *video_rc_override_string=NULL;
142 static int video_disable = 0;
143 static int video_discard = 0;
144 static char *video_codec_name = NULL;
145 static unsigned int video_codec_tag = 0;
146 static char *video_language = NULL;
147 static int same_quality = 0;
148 static int do_deinterlace = 0;
149 static int top_field_first = -1;
150 static int me_threshold = 0;
151 static int intra_dc_precision = 8;
152 static int loop_input = 0;
153 static int loop_output = AVFMT_NOOUTPUTLOOP;
154 static int qp_hist = 0;
155 #if CONFIG_AVFILTER
156 static char *vfilters = NULL;
157 #endif
158
159 static int intra_only = 0;
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static char *audio_codec_name = NULL;
166 static unsigned int audio_codec_tag = 0;
167 static char *audio_language = NULL;
168
169 static int subtitle_disable = 0;
170 static char *subtitle_codec_name = NULL;
171 static char *subtitle_language = NULL;
172 static unsigned int subtitle_codec_tag = 0;
173
174 static int data_disable = 0;
175 static char *data_codec_name = NULL;
176 static unsigned int data_codec_tag = 0;
177
178 static float mux_preload= 0.5;
179 static float mux_max_delay= 0.7;
180
181 static int64_t recording_time = INT64_MAX;
182 static int64_t start_time = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static AVDictionary *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static char *pass_logfilename_prefix = NULL;
192 static int audio_stream_copy = 0;
193 static int video_stream_copy = 0;
194 static int subtitle_stream_copy = 0;
195 static int data_stream_copy = 0;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int audio_volume = 256;
210
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int thread_count= 1;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223 static char *forced_key_frames = NULL;
224
225 static float dts_delta_threshold = 10;
226
227 static int64_t timer_start;
228
229 static uint8_t *audio_buf;
230 static uint8_t *audio_out;
231 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
232
233 static short *samples;
234
235 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
236 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
238
239 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
240
241 struct InputStream;
242
243 typedef struct OutputStream {
244 int file_index; /* file index */
245 int index; /* stream index in the output file */
246 int source_index; /* InputStream index */
247 AVStream *st; /* stream in the output file */
248 int encoding_needed; /* true if encoding needed for this stream */
249 int frame_number;
250 /* input pts and corresponding output pts
251 for A/V sync */
252 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
253 struct InputStream *sync_ist; /* input stream to sync against */
254 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
255 AVBitStreamFilterContext *bitstream_filters;
256 AVCodec *enc;
257
258 /* video only */
259 int video_resample;
260 AVFrame pict_tmp; /* temporary image for resampling */
261 struct SwsContext *img_resample_ctx; /* for image resampling */
262 int resample_height;
263 int resample_width;
264 int resample_pix_fmt;
265 AVRational frame_rate;
266
267 float frame_aspect_ratio;
268
269 /* forced key frames */
270 int64_t *forced_kf_pts;
271 int forced_kf_count;
272 int forced_kf_index;
273
274 /* audio only */
275 int audio_resample;
276 ReSampleContext *resample; /* for audio resampling */
277 int resample_sample_fmt;
278 int resample_channels;
279 int resample_sample_rate;
280 int reformat_pair;
281 AVAudioConvert *reformat_ctx;
282 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
283 FILE *logfile;
284
285 #if CONFIG_AVFILTER
286 AVFilterContext *output_video_filter;
287 AVFilterContext *input_video_filter;
288 AVFilterBufferRef *picref;
289 char *avfilter;
290 AVFilterGraph *graph;
291 #endif
292
293 int sws_flags;
294 AVDictionary *opts;
295 } OutputStream;
296
297 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
298 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
299
300 typedef struct InputStream {
301 int file_index;
302 AVStream *st;
303 int discard; /* true if stream data should be discarded */
304 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
305 AVCodec *dec;
306
307 int64_t start; /* time when read started */
308 int64_t next_pts; /* synthetic pts for cases where pkt.pts
309 is not defined */
310 int64_t pts; /* current pts */
311 PtsCorrectionContext pts_ctx;
312 double ts_scale;
313 int is_start; /* is 1 at the start and after a discontinuity */
314 int showed_multi_packet_warning;
315 int is_past_recording_time;
316 AVDictionary *opts;
317 } InputStream;
318
319 typedef struct InputFile {
320 AVFormatContext *ctx;
321 int eof_reached; /* true if eof reached */
322 int ist_index; /* index of first stream in ist_table */
323 int buffer_size; /* current total buffer size */
324 int64_t ts_offset;
325 } InputFile;
326
327 static InputStream *input_streams = NULL;
328 static int nb_input_streams = 0;
329 static InputFile *input_files = NULL;
330 static int nb_input_files = 0;
331
332 #if CONFIG_AVFILTER
333
334 static int configure_video_filters(InputStream *ist, OutputStream *ost)
335 {
336 AVFilterContext *last_filter, *filter;
337 /** filter graph containing all filters including input & output */
338 AVCodecContext *codec = ost->st->codec;
339 AVCodecContext *icodec = ist->st->codec;
340 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
341 AVRational sample_aspect_ratio;
342 char args[255];
343 int ret;
344
345 ost->graph = avfilter_graph_alloc();
346
347 if (ist->st->sample_aspect_ratio.num){
348 sample_aspect_ratio = ist->st->sample_aspect_ratio;
349 }else
350 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
351
352 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
353 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
354 sample_aspect_ratio.num, sample_aspect_ratio.den);
355
356 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
357 "src", args, NULL, ost->graph);
358 if (ret < 0)
359 return ret;
360 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
361 "out", NULL, &ffsink_ctx, ost->graph);
362 if (ret < 0)
363 return ret;
364 last_filter = ost->input_video_filter;
365
366 if (codec->width != icodec->width || codec->height != icodec->height) {
367 snprintf(args, 255, "%d:%d:flags=0x%X",
368 codec->width,
369 codec->height,
370 ost->sws_flags);
371 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
372 NULL, args, NULL, ost->graph)) < 0)
373 return ret;
374 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
375 return ret;
376 last_filter = filter;
377 }
378
379 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
380 ost->graph->scale_sws_opts = av_strdup(args);
381
382 if (ost->avfilter) {
383 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
384 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
385
386 outputs->name = av_strdup("in");
387 outputs->filter_ctx = last_filter;
388 outputs->pad_idx = 0;
389 outputs->next = NULL;
390
391 inputs->name = av_strdup("out");
392 inputs->filter_ctx = ost->output_video_filter;
393 inputs->pad_idx = 0;
394 inputs->next = NULL;
395
396 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
397 return ret;
398 av_freep(&ost->avfilter);
399 } else {
400 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
401 return ret;
402 }
403
404 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
405 return ret;
406
407 codec->width = ost->output_video_filter->inputs[0]->w;
408 codec->height = ost->output_video_filter->inputs[0]->h;
409 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
410 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
411 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
412 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
413
414 return 0;
415 }
416 #endif /* CONFIG_AVFILTER */
417
418 static void term_exit(void)
419 {
420 av_log(NULL, AV_LOG_QUIET, "");
421 }
422
423 static volatile int received_sigterm = 0;
424 static volatile int received_nb_signals = 0;
425
426 static void
427 sigterm_handler(int sig)
428 {
429 received_sigterm = sig;
430 received_nb_signals++;
431 term_exit();
432 }
433
434 static void term_init(void)
435 {
436 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
437 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
438 #ifdef SIGXCPU
439 signal(SIGXCPU, sigterm_handler);
440 #endif
441 }
442
443 static int decode_interrupt_cb(void)
444 {
445 return received_nb_signals > 1;
446 }
447
448 void exit_program(int ret)
449 {
450 int i;
451
452 /* close files */
453 for(i=0;i<nb_output_files;i++) {
454 AVFormatContext *s = output_files[i];
455 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456 avio_close(s->pb);
457 avformat_free_context(s);
458 av_free(output_streams_for_file[i]);
459 av_dict_free(&output_opts[i]);
460 }
461 for(i=0;i<nb_input_files;i++) {
462 av_close_input_file(input_files[i].ctx);
463 }
464 for (i = 0; i < nb_input_streams; i++)
465 av_dict_free(&input_streams[i].opts);
466
467 av_free(intra_matrix);
468 av_free(inter_matrix);
469
470 if (vstats_file)
471 fclose(vstats_file);
472 av_free(vstats_filename);
473
474 av_free(streamid_map);
475 av_free(stream_maps);
476 av_free(meta_data_maps);
477
478 av_freep(&input_streams);
479 av_freep(&input_files);
480
481 av_free(video_codec_name);
482 av_free(audio_codec_name);
483 av_free(subtitle_codec_name);
484 av_free(data_codec_name);
485
486 uninit_opts();
487 av_free(audio_buf);
488 av_free(audio_out);
489 allocated_audio_buf_size= allocated_audio_out_size= 0;
490 av_free(samples);
491
492 #if CONFIG_AVFILTER
493 avfilter_uninit();
494 #endif
495
496 if (received_sigterm) {
497 fprintf(stderr,
498 "Received signal %d: terminating.\n",
499 (int) received_sigterm);
500 exit (255);
501 }
502
503 exit(ret); /* not all OS-es handle main() return value */
504 }
505
506 static void assert_avoptions(AVDictionary *m)
507 {
508 AVDictionaryEntry *t;
509 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
510 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
511 exit_program(1);
512 }
513 }
514
515 static void assert_codec_experimental(AVCodecContext *c, int encoder)
516 {
517 const char *codec_string = encoder ? "encoder" : "decoder";
518 AVCodec *codec;
519 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
520 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
521 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
522 "results.\nAdd '-strict experimental' if you want to use it.\n",
523 codec_string, c->codec->name);
524 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
525 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
526 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
527 codec_string, codec->name);
528 exit_program(1);
529 }
530 }
531
532 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
533 {
534 if(codec && codec->sample_fmts){
535 const enum AVSampleFormat *p= codec->sample_fmts;
536 for(; *p!=-1; p++){
537 if(*p == st->codec->sample_fmt)
538 break;
539 }
540 if (*p == -1) {
541 av_log(NULL, AV_LOG_WARNING,
542 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
543 av_get_sample_fmt_name(st->codec->sample_fmt),
544 codec->name,
545 av_get_sample_fmt_name(codec->sample_fmts[0]));
546 st->codec->sample_fmt = codec->sample_fmts[0];
547 }
548 }
549 }
550
551 /**
552 * Update the requested input sample format based on the output sample format.
553 * This is currently only used to request float output from decoders which
554 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
555 * Ideally this will be removed in the future when decoders do not do format
556 * conversion and only output in their native format.
557 */
558 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
559 AVCodecContext *enc)
560 {
561 /* if sample formats match or a decoder sample format has already been
562 requested, just return */
563 if (enc->sample_fmt == dec->sample_fmt ||
564 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
565 return;
566
567 /* if decoder supports more than one output format */
568 if (dec_codec && dec_codec->sample_fmts &&
569 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
570 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
571 const enum AVSampleFormat *p;
572 int min_dec = -1, min_inc = -1;
573
574 /* find a matching sample format in the encoder */
575 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
576 if (*p == enc->sample_fmt) {
577 dec->request_sample_fmt = *p;
578 return;
579 } else if (*p > enc->sample_fmt) {
580 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
581 } else
582 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
583 }
584
585 /* if none match, provide the one that matches quality closest */
586 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
587 enc->sample_fmt - min_dec;
588 }
589 }
590
591 static void choose_sample_rate(AVStream *st, AVCodec *codec)
592 {
593 if(codec && codec->supported_samplerates){
594 const int *p= codec->supported_samplerates;
595 int best=0;
596 int best_dist=INT_MAX;
597 for(; *p; p++){
598 int dist= abs(st->codec->sample_rate - *p);
599 if(dist < best_dist){
600 best_dist= dist;
601 best= *p;
602 }
603 }
604 if(best_dist){
605 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
606 }
607 st->codec->sample_rate= best;
608 }
609 }
610
611 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
612 {
613 if(codec && codec->pix_fmts){
614 const enum PixelFormat *p= codec->pix_fmts;
615 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
616 if(st->codec->codec_id==CODEC_ID_MJPEG){
617 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
618 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
619 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
620 }
621 }
622 for(; *p!=-1; p++){
623 if(*p == st->codec->pix_fmt)
624 break;
625 }
626 if (*p == -1) {
627 if(st->codec->pix_fmt != PIX_FMT_NONE)
628 av_log(NULL, AV_LOG_WARNING,
629 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
630 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
631 codec->name,
632 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
633 st->codec->pix_fmt = codec->pix_fmts[0];
634 }
635 }
636 }
637
638 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
639 {
640 OutputStream *ost;
641 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
642 int idx = oc->nb_streams - 1;
643
644 if (!st) {
645 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
646 exit_program(1);
647 }
648
649 output_streams_for_file[file_idx] =
650 grow_array(output_streams_for_file[file_idx],
651 sizeof(*output_streams_for_file[file_idx]),
652 &nb_output_streams_for_file[file_idx],
653 oc->nb_streams);
654 ost = output_streams_for_file[file_idx][idx] =
655 av_mallocz(sizeof(OutputStream));
656 if (!ost) {
657 fprintf(stderr, "Could not alloc output stream\n");
658 exit_program(1);
659 }
660 ost->file_index = file_idx;
661 ost->index = idx;
662 ost->st = st;
663 ost->enc = codec;
664 if (codec)
665 ost->opts = filter_codec_opts(codec_opts, codec->id, oc, st);
666
667 avcodec_get_context_defaults3(st->codec, codec);
668
669 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
670 return ost;
671 }
672
673 static int read_avserver_streams(AVFormatContext *s, const char *filename)
674 {
675 int i, err;
676 AVFormatContext *ic = NULL;
677
678 err = avformat_open_input(&ic, filename, NULL, NULL);
679 if (err < 0)
680 return err;
681 /* copy stream format */
682 for(i=0;i<ic->nb_streams;i++) {
683 AVStream *st;
684 OutputStream *ost;
685 AVCodec *codec;
686
687 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
688 ost = new_output_stream(s, nb_output_files, codec);
689 st = ost->st;
690
691 // FIXME: a more elegant solution is needed
692 memcpy(st, ic->streams[i], sizeof(AVStream));
693 st->info = NULL;
694 avcodec_copy_context(st->codec, ic->streams[i]->codec);
695
696 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
697 if (audio_stream_copy) {
698 st->stream_copy = 1;
699 } else
700 choose_sample_fmt(st, codec);
701 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
702 if (video_stream_copy) {
703 st->stream_copy = 1;
704 } else
705 choose_pixel_fmt(st, codec);
706 }
707 }
708
709 av_close_input_file(ic);
710 return 0;
711 }
712
713 static double
714 get_sync_ipts(const OutputStream *ost)
715 {
716 const InputStream *ist = ost->sync_ist;
717 return (double)(ist->pts - start_time)/AV_TIME_BASE;
718 }
719
720 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
721 int ret;
722
723 while(bsfc){
724 AVPacket new_pkt= *pkt;
725 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
726 &new_pkt.data, &new_pkt.size,
727 pkt->data, pkt->size,
728 pkt->flags & AV_PKT_FLAG_KEY);
729 if(a>0){
730 av_free_packet(pkt);
731 new_pkt.destruct= av_destruct_packet;
732 } else if(a<0){
733 fprintf(stderr, "%s failed for stream %d, codec %s",
734 bsfc->filter->name, pkt->stream_index,
735 avctx->codec ? avctx->codec->name : "copy");
736 print_error("", a);
737 if (exit_on_error)
738 exit_program(1);
739 }
740 *pkt= new_pkt;
741
742 bsfc= bsfc->next;
743 }
744
745 ret= av_interleaved_write_frame(s, pkt);
746 if(ret < 0){
747 print_error("av_interleaved_write_frame()", ret);
748 exit_program(1);
749 }
750 }
751
752 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
753
754 static void do_audio_out(AVFormatContext *s,
755 OutputStream *ost,
756 InputStream *ist,
757 unsigned char *buf, int size)
758 {
759 uint8_t *buftmp;
760 int64_t audio_out_size, audio_buf_size;
761 int64_t allocated_for_size= size;
762
763 int size_out, frame_bytes, ret, resample_changed;
764 AVCodecContext *enc= ost->st->codec;
765 AVCodecContext *dec= ist->st->codec;
766 int osize = av_get_bytes_per_sample(enc->sample_fmt);
767 int isize = av_get_bytes_per_sample(dec->sample_fmt);
768 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
769
770 need_realloc:
771 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
772 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
773 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
774 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
775 audio_buf_size*= osize*enc->channels;
776
777 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
778 if(coded_bps > 8*osize)
779 audio_out_size= audio_out_size * coded_bps / (8*osize);
780 audio_out_size += FF_MIN_BUFFER_SIZE;
781
782 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
783 fprintf(stderr, "Buffer sizes too large\n");
784 exit_program(1);
785 }
786
787 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
788 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
789 if (!audio_buf || !audio_out){
790 fprintf(stderr, "Out of memory in do_audio_out\n");
791 exit_program(1);
792 }
793
794 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
795 ost->audio_resample = 1;
796
797 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
798 ost->resample_channels != dec->channels ||
799 ost->resample_sample_rate != dec->sample_rate;
800
801 if ((ost->audio_resample && !ost->resample) || resample_changed) {
802 if (resample_changed) {
803 av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
804 ist->file_index, ist->st->index,
805 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
806 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
807 ost->resample_sample_fmt = dec->sample_fmt;
808 ost->resample_channels = dec->channels;
809 ost->resample_sample_rate = dec->sample_rate;
810 if (ost->resample)
811 audio_resample_close(ost->resample);
812 }
813 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
814 if (audio_sync_method <= 1 &&
815 ost->resample_sample_fmt == enc->sample_fmt &&
816 ost->resample_channels == enc->channels &&
817 ost->resample_sample_rate == enc->sample_rate) {
818 ost->resample = NULL;
819 ost->audio_resample = 0;
820 } else if (ost->audio_resample) {
821 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
822 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
823 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
824 enc->sample_rate, dec->sample_rate,
825 enc->sample_fmt, dec->sample_fmt,
826 16, 10, 0, 0.8);
827 if (!ost->resample) {
828 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
829 dec->channels, dec->sample_rate,
830 enc->channels, enc->sample_rate);
831 exit_program(1);
832 }
833 }
834 }
835
836 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
837 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
838 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
839 if (ost->reformat_ctx)
840 av_audio_convert_free(ost->reformat_ctx);
841 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
842 dec->sample_fmt, 1, NULL, 0);
843 if (!ost->reformat_ctx) {
844 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
845 av_get_sample_fmt_name(dec->sample_fmt),
846 av_get_sample_fmt_name(enc->sample_fmt));
847 exit_program(1);
848 }
849 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
850 }
851
852 if(audio_sync_method){
853 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
854 - av_fifo_size(ost->fifo)/(enc->channels * 2);
855 double idelta= delta*dec->sample_rate / enc->sample_rate;
856 int byte_delta= ((int)idelta)*2*dec->channels;
857
858 //FIXME resample delay
859 if(fabs(delta) > 50){
860 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
861 if(byte_delta < 0){
862 byte_delta= FFMAX(byte_delta, -size);
863 size += byte_delta;
864 buf -= byte_delta;
865 if(verbose > 2)
866 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
867 if(!size)
868 return;
869 ist->is_start=0;
870 }else{
871 static uint8_t *input_tmp= NULL;
872 input_tmp= av_realloc(input_tmp, byte_delta + size);
873
874 if(byte_delta > allocated_for_size - size){
875 allocated_for_size= byte_delta + (int64_t)size;
876 goto need_realloc;
877 }
878 ist->is_start=0;
879
880 memset(input_tmp, 0, byte_delta);
881 memcpy(input_tmp + byte_delta, buf, size);
882 buf= input_tmp;
883 size += byte_delta;
884 if(verbose > 2)
885 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
886 }
887 }else if(audio_sync_method>1){
888 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
889 av_assert0(ost->audio_resample);
890 if(verbose > 2)
891 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
892 // 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));
893 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
894 }
895 }
896 }else
897 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
898 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
899
900 if (ost->audio_resample) {
901 buftmp = audio_buf;
902 size_out = audio_resample(ost->resample,
903 (short *)buftmp, (short *)buf,
904 size / (dec->channels * isize));
905 size_out = size_out * enc->channels * osize;
906 } else {
907 buftmp = buf;
908 size_out = size;
909 }
910
911 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
912 const void *ibuf[6]= {buftmp};
913 void *obuf[6]= {audio_buf};
914 int istride[6]= {isize};
915 int ostride[6]= {osize};
916 int len= size_out/istride[0];
917 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
918 printf("av_audio_convert() failed\n");
919 if (exit_on_error)
920 exit_program(1);
921 return;
922 }
923 buftmp = audio_buf;
924 size_out = len*osize;
925 }
926
927 /* now encode as many frames as possible */
928 if (enc->frame_size > 1) {
929 /* output resampled raw samples */
930 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
931 fprintf(stderr, "av_fifo_realloc2() failed\n");
932 exit_program(1);
933 }
934 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
935
936 frame_bytes = enc->frame_size * osize * enc->channels;
937
938 while (av_fifo_size(ost->fifo) >= frame_bytes) {
939 AVPacket pkt;
940 av_init_packet(&pkt);
941
942 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
943
944 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
945
946 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
947 (short *)audio_buf);
948 if (ret < 0) {
949 fprintf(stderr, "Audio encoding failed\n");
950 exit_program(1);
951 }
952 audio_size += ret;
953 pkt.stream_index= ost->index;
954 pkt.data= audio_out;
955 pkt.size= ret;
956 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
957 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
958 pkt.flags |= AV_PKT_FLAG_KEY;
959 write_frame(s, &pkt, enc, ost->bitstream_filters);
960
961 ost->sync_opts += enc->frame_size;
962 }
963 } else {
964 AVPacket pkt;
965 av_init_packet(&pkt);
966
967 ost->sync_opts += size_out / (osize * enc->channels);
968
969 /* output a pcm frame */
970 /* determine the size of the coded buffer */
971 size_out /= osize;
972 if (coded_bps)
973 size_out = size_out*coded_bps/8;
974
975 if(size_out > audio_out_size){
976 fprintf(stderr, "Internal error, buffer size too small\n");
977 exit_program(1);
978 }
979
980 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
981 ret = avcodec_encode_audio(enc, audio_out, size_out,
982 (short *)buftmp);
983 if (ret < 0) {
984 fprintf(stderr, "Audio encoding failed\n");
985 exit_program(1);
986 }
987 audio_size += ret;
988 pkt.stream_index= ost->index;
989 pkt.data= audio_out;
990 pkt.size= ret;
991 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
992 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
993 pkt.flags |= AV_PKT_FLAG_KEY;
994 write_frame(s, &pkt, enc, ost->bitstream_filters);
995 }
996 }
997
998 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
999 {
1000 AVCodecContext *dec;
1001 AVPicture *picture2;
1002 AVPicture picture_tmp;
1003 uint8_t *buf = 0;
1004
1005 dec = ist->st->codec;
1006
1007 /* deinterlace : must be done before any resize */
1008 if (do_deinterlace) {
1009 int size;
1010
1011 /* create temporary picture */
1012 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1013 buf = av_malloc(size);
1014 if (!buf)
1015 return;
1016
1017 picture2 = &picture_tmp;
1018 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1019
1020 if(avpicture_deinterlace(picture2, picture,
1021 dec->pix_fmt, dec->width, dec->height) < 0) {
1022 /* if error, do not deinterlace */
1023 fprintf(stderr, "Deinterlacing failed\n");
1024 av_free(buf);
1025 buf = NULL;
1026 picture2 = picture;
1027 }
1028 } else {
1029 picture2 = picture;
1030 }
1031
1032 if (picture != picture2)
1033 *picture = *picture2;
1034 *bufp = buf;
1035 }
1036
1037 /* we begin to correct av delay at this threshold */
1038 #define AV_DELAY_MAX 0.100
1039
1040 static void do_subtitle_out(AVFormatContext *s,
1041 OutputStream *ost,
1042 InputStream *ist,
1043 AVSubtitle *sub,
1044 int64_t pts)
1045 {
1046 static uint8_t *subtitle_out = NULL;
1047 int subtitle_out_max_size = 1024 * 1024;
1048 int subtitle_out_size, nb, i;
1049 AVCodecContext *enc;
1050 AVPacket pkt;
1051
1052 if (pts == AV_NOPTS_VALUE) {
1053 fprintf(stderr, "Subtitle packets must have a pts\n");
1054 if (exit_on_error)
1055 exit_program(1);
1056 return;
1057 }
1058
1059 enc = ost->st->codec;
1060
1061 if (!subtitle_out) {
1062 subtitle_out = av_malloc(subtitle_out_max_size);
1063 }
1064
1065 /* Note: DVB subtitle need one packet to draw them and one other
1066 packet to clear them */
1067 /* XXX: signal it in the codec context ? */
1068 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1069 nb = 2;
1070 else
1071 nb = 1;
1072
1073 for(i = 0; i < nb; i++) {
1074 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1075 // start_display_time is required to be 0
1076 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1077 sub->end_display_time -= sub->start_display_time;
1078 sub->start_display_time = 0;
1079 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1080 subtitle_out_max_size, sub);
1081 if (subtitle_out_size < 0) {
1082 fprintf(stderr, "Subtitle encoding failed\n");
1083 exit_program(1);
1084 }
1085
1086 av_init_packet(&pkt);
1087 pkt.stream_index = ost->index;
1088 pkt.data = subtitle_out;
1089 pkt.size = subtitle_out_size;
1090 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1091 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1092 /* XXX: the pts correction is handled here. Maybe handling
1093 it in the codec would be better */
1094 if (i == 0)
1095 pkt.pts += 90 * sub->start_display_time;
1096 else
1097 pkt.pts += 90 * sub->end_display_time;
1098 }
1099 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1100 }
1101 }
1102
1103 static int bit_buffer_size= 1024*256;
1104 static uint8_t *bit_buffer= NULL;
1105
1106 static void do_video_out(AVFormatContext *s,
1107 OutputStream *ost,
1108 InputStream *ist,
1109 AVFrame *in_picture,
1110 int *frame_size, float quality)
1111 {
1112 int nb_frames, i, ret, resample_changed;
1113 AVFrame *final_picture, *formatted_picture;
1114 AVCodecContext *enc, *dec;
1115 double sync_ipts;
1116
1117 enc = ost->st->codec;
1118 dec = ist->st->codec;
1119
1120 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1121
1122 /* by default, we output a single frame */
1123 nb_frames = 1;
1124
1125 *frame_size = 0;
1126
1127 if(video_sync_method){
1128 double vdelta = sync_ipts - ost->sync_opts;
1129 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1130 if (vdelta < -1.1)
1131 nb_frames = 0;
1132 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1133 if(vdelta<=-0.6){
1134 nb_frames=0;
1135 }else if(vdelta>0.6)
1136 ost->sync_opts= lrintf(sync_ipts);
1137 }else if (vdelta > 1.1)
1138 nb_frames = lrintf(vdelta);
1139 //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);
1140 if (nb_frames == 0){
1141 ++nb_frames_drop;
1142 if (verbose>2)
1143 fprintf(stderr, "*** drop!\n");
1144 }else if (nb_frames > 1) {
1145 nb_frames_dup += nb_frames - 1;
1146 if (verbose>2)
1147 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1148 }
1149 }else
1150 ost->sync_opts= lrintf(sync_ipts);
1151
1152 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1153 if (nb_frames <= 0)
1154 return;
1155
1156 formatted_picture = in_picture;
1157 final_picture = formatted_picture;
1158
1159 resample_changed = ost->resample_width != dec->width ||
1160 ost->resample_height != dec->height ||
1161 ost->resample_pix_fmt != dec->pix_fmt;
1162
1163 if (resample_changed) {
1164 av_log(NULL, AV_LOG_INFO,
1165 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1166 ist->file_index, ist->st->index,
1167 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1168 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1169 if(!ost->video_resample)
1170 exit_program(1);
1171 }
1172
1173 #if !CONFIG_AVFILTER
1174 if (ost->video_resample) {
1175 final_picture = &ost->pict_tmp;
1176 if (resample_changed) {
1177 /* initialize a new scaler context */
1178 sws_freeContext(ost->img_resample_ctx);
1179 ost->img_resample_ctx = sws_getContext(
1180 ist->st->codec->width,
1181 ist->st->codec->height,
1182 ist->st->codec->pix_fmt,
1183 ost->st->codec->width,
1184 ost->st->codec->height,
1185 ost->st->codec->pix_fmt,
1186 ost->sws_flags, NULL, NULL, NULL);
1187 if (ost->img_resample_ctx == NULL) {
1188 fprintf(stderr, "Cannot get resampling context\n");
1189 exit_program(1);
1190 }
1191 }
1192 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1193 0, ost->resample_height, final_picture->data, final_picture->linesize);
1194 }
1195 #endif
1196
1197 /* duplicates frame if needed */
1198 for(i=0;i<nb_frames;i++) {
1199 AVPacket pkt;
1200 av_init_packet(&pkt);
1201 pkt.stream_index= ost->index;
1202
1203 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1204 /* raw pictures are written as AVPicture structure to
1205 avoid any copies. We support temorarily the older
1206 method. */
1207 AVFrame* old_frame = enc->coded_frame;
1208 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1209 pkt.data= (uint8_t *)final_picture;
1210 pkt.size= sizeof(AVPicture);
1211 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1212 pkt.flags |= AV_PKT_FLAG_KEY;
1213
1214 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1215 enc->coded_frame = old_frame;
1216 } else {
1217 AVFrame big_picture;
1218
1219 big_picture= *final_picture;
1220 /* better than nothing: use input picture interlaced
1221 settings */
1222 big_picture.interlaced_frame = in_picture->interlaced_frame;
1223 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1224 if(top_field_first == -1)
1225 big_picture.top_field_first = in_picture->top_field_first;
1226 else
1227 big_picture.top_field_first = top_field_first;
1228 }
1229
1230 /* handles sameq here. This is not correct because it may
1231 not be a global option */
1232 big_picture.quality = quality;
1233 if(!me_threshold)
1234 big_picture.pict_type = 0;
1235 // big_picture.pts = AV_NOPTS_VALUE;
1236 big_picture.pts= ost->sync_opts;
1237 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1238 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1239 if (ost->forced_kf_index < ost->forced_kf_count &&
1240 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1241 big_picture.pict_type = AV_PICTURE_TYPE_I;
1242 ost->forced_kf_index++;
1243 }
1244 ret = avcodec_encode_video(enc,
1245 bit_buffer, bit_buffer_size,
1246 &big_picture);
1247 if (ret < 0) {
1248 fprintf(stderr, "Video encoding failed\n");
1249 exit_program(1);
1250 }
1251
1252 if(ret>0){
1253 pkt.data= bit_buffer;
1254 pkt.size= ret;
1255 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1256 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1257 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1258 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1259 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1260
1261 if(enc->coded_frame->key_frame)
1262 pkt.flags |= AV_PKT_FLAG_KEY;
1263 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1264 *frame_size = ret;
1265 video_size += ret;
1266 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1267 // enc->frame_number-1, ret, enc->pict_type);
1268 /* if two pass, output log */
1269 if (ost->logfile && enc->stats_out) {
1270 fprintf(ost->logfile, "%s", enc->stats_out);
1271 }
1272 }
1273 }
1274 ost->sync_opts++;
1275 ost->frame_number++;
1276 }
1277 }
1278
1279 static double psnr(double d){
1280 return -10.0*log(d)/log(10.0);
1281 }
1282
1283 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1284 int frame_size)
1285 {
1286 AVCodecContext *enc;
1287 int frame_number;
1288 double ti1, bitrate, avg_bitrate;
1289
1290 /* this is executed just the first time do_video_stats is called */
1291 if (!vstats_file) {
1292 vstats_file = fopen(vstats_filename, "w");
1293 if (!vstats_file) {
1294 perror("fopen");
1295 exit_program(1);
1296 }
1297 }
1298
1299 enc = ost->st->codec;
1300 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1301 frame_number = ost->frame_number;
1302 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1303 if (enc->flags&CODEC_FLAG_PSNR)
1304 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1305
1306 fprintf(vstats_file,"f_size= %6d ", frame_size);
1307 /* compute pts value */
1308 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1309 if (ti1 < 0.01)
1310 ti1 = 0.01;
1311
1312 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1313 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1314 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1315 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1316 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1317 }
1318 }
1319
1320 static void print_report(AVFormatContext **output_files,
1321 OutputStream **ost_table, int nb_ostreams,
1322 int is_last_report)
1323 {
1324 char buf[1024];
1325 OutputStream *ost;
1326 AVFormatContext *oc;
1327 int64_t total_size;
1328 AVCodecContext *enc;
1329 int frame_number, vid, i;
1330 double bitrate, ti1, pts;
1331 static int64_t last_time = -1;
1332 static int qp_histogram[52];
1333
1334 if (!is_last_report) {
1335 int64_t cur_time;
1336 /* display the report every 0.5 seconds */
1337 cur_time = av_gettime();
1338 if (last_time == -1) {
1339 last_time = cur_time;
1340 return;
1341 }
1342 if ((cur_time - last_time) < 500000)
1343 return;
1344 last_time = cur_time;
1345 }
1346
1347
1348 oc = output_files[0];
1349
1350 total_size = avio_size(oc->pb);
1351 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1352 total_size= avio_tell(oc->pb);
1353
1354 buf[0] = '\0';
1355 ti1 = 1e10;
1356 vid = 0;
1357 for(i=0;i<nb_ostreams;i++) {
1358 float q = -1;
1359 ost = ost_table[i];
1360 enc = ost->st->codec;
1361 if (!ost->st->stream_copy && enc->coded_frame)
1362 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1363 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1365 }
1366 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367 float t = (av_gettime()-timer_start) / 1000000.0;
1368
1369 frame_number = ost->frame_number;
1370 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1371 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1372 if(is_last_report)
1373 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1374 if(qp_hist){
1375 int j;
1376 int qp = lrintf(q);
1377 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1378 qp_histogram[qp]++;
1379 for(j=0; j<32; j++)
1380 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1381 }
1382 if (enc->flags&CODEC_FLAG_PSNR){
1383 int j;
1384 double error, error_sum=0;
1385 double scale, scale_sum=0;
1386 char type[3]= {'Y','U','V'};
1387 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1388 for(j=0; j<3; j++){
1389 if(is_last_report){
1390 error= enc->error[j];
1391 scale= enc->width*enc->height*255.0*255.0*frame_number;
1392 }else{
1393 error= enc->coded_frame->error[j];
1394 scale= enc->width*enc->height*255.0*255.0;
1395 }
1396 if(j) scale/=4;
1397 error_sum += error;
1398 scale_sum += scale;
1399 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1400 }
1401 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1402 }
1403 vid = 1;
1404 }
1405 /* compute min output value */
1406 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1407 if ((pts < ti1) && (pts > 0))
1408 ti1 = pts;
1409 }
1410 if (ti1 < 0.01)
1411 ti1 = 0.01;
1412
1413 if (verbose > 0 || is_last_report) {
1414 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1415
1416 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1417 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1418 (double)total_size / 1024, ti1, bitrate);
1419
1420 if (nb_frames_dup || nb_frames_drop)
1421 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1422 nb_frames_dup, nb_frames_drop);
1423
1424 if (verbose >= 0)
1425 fprintf(stderr, "%s \r", buf);
1426
1427 fflush(stderr);
1428 }
1429
1430 if (is_last_report && verbose >= 0){
1431 int64_t raw= audio_size + video_size + extra_size;
1432 fprintf(stderr, "\n");
1433 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1434 video_size/1024.0,
1435 audio_size/1024.0,
1436 extra_size/1024.0,
1437 100.0*(total_size - raw)/raw
1438 );
1439 }
1440 }
1441
1442 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1443 {
1444 int fill_char = 0x00;
1445 if (sample_fmt == AV_SAMPLE_FMT_U8)
1446 fill_char = 0x80;
1447 memset(buf, fill_char, size);
1448 }
1449
1450 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1451 static int output_packet(InputStream *ist, int ist_index,
1452 OutputStream **ost_table, int nb_ostreams,
1453 const AVPacket *pkt)
1454 {
1455 AVFormatContext *os;
1456 OutputStream *ost;
1457 int ret, i;
1458 int got_output;
1459 AVFrame picture;
1460 void *buffer_to_free = NULL;
1461 static unsigned int samples_size= 0;
1462 AVSubtitle subtitle, *subtitle_to_free;
1463 int64_t pkt_pts = AV_NOPTS_VALUE;
1464 #if CONFIG_AVFILTER
1465 int frame_available;
1466 #endif
1467 float quality;
1468
1469 AVPacket avpkt;
1470 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1471
1472 if(ist->next_pts == AV_NOPTS_VALUE)
1473 ist->next_pts= ist->pts;
1474
1475 if (pkt == NULL) {
1476 /* EOF handling */
1477 av_init_packet(&avpkt);
1478 avpkt.data = NULL;
1479 avpkt.size = 0;
1480 goto handle_eof;
1481 } else {
1482 avpkt = *pkt;
1483 }
1484
1485 if(pkt->dts != AV_NOPTS_VALUE)
1486 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1487 if(pkt->pts != AV_NOPTS_VALUE)
1488 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1489
1490 //while we have more to decode or while the decoder did output something on EOF
1491 while (avpkt.size > 0 || (!pkt && got_output)) {
1492 uint8_t *data_buf, *decoded_data_buf;
1493 int data_size, decoded_data_size;
1494 handle_eof:
1495 ist->pts= ist->next_pts;
1496
1497 if(avpkt.size && avpkt.size != pkt->size &&
1498 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1499 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1500 ist->showed_multi_packet_warning=1;
1501 }
1502
1503 /* decode the packet if needed */
1504 decoded_data_buf = NULL; /* fail safe */
1505 decoded_data_size= 0;
1506 data_buf = avpkt.data;
1507 data_size = avpkt.size;
1508 subtitle_to_free = NULL;
1509 if (ist->decoding_needed) {
1510 switch(ist->st->codec->codec_type) {
1511 case AVMEDIA_TYPE_AUDIO:{
1512 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1513 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1514 av_free(samples);
1515 samples= av_malloc(samples_size);
1516 }
1517 decoded_data_size= samples_size;
1518 /* XXX: could avoid copy if PCM 16 bits with same
1519 endianness as CPU */
1520 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1521 &avpkt);
1522 if (ret < 0)
1523 return ret;
1524 avpkt.data += ret;
1525 avpkt.size -= ret;
1526 data_size = ret;
1527 got_output = decoded_data_size > 0;
1528 /* Some bug in mpeg audio decoder gives */
1529 /* decoded_data_size < 0, it seems they are overflows */
1530 if (!got_output) {
1531 /* no audio frame */
1532 continue;
1533 }
1534 decoded_data_buf = (uint8_t *)samples;
1535 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1536 (ist->st->codec->sample_rate * ist->st->codec->channels);
1537 break;}
1538 case AVMEDIA_TYPE_VIDEO:
1539 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1540 /* XXX: allocate picture correctly */
1541 avcodec_get_frame_defaults(&picture);
1542 avpkt.pts = pkt_pts;
1543 avpkt.dts = ist->pts;
1544 pkt_pts = AV_NOPTS_VALUE;
1545
1546 ret = avcodec_decode_video2(ist->st->codec,
1547 &picture, &got_output, &avpkt);
1548 quality = same_quality ? picture.quality : 0;
1549 if (ret < 0)
1550 return ret;
1551 if (!got_output) {
1552 /* no picture yet */
1553 goto discard_packet;
1554 }
1555 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1556 if (ist->st->codec->time_base.num != 0) {
1557 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1558 ist->next_pts += ((int64_t)AV_TIME_BASE *
1559 ist->st->codec->time_base.num * ticks) /
1560 ist->st->codec->time_base.den;
1561 }
1562 avpkt.size = 0;
1563 buffer_to_free = NULL;
1564 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1565 break;
1566 case AVMEDIA_TYPE_SUBTITLE:
1567 ret = avcodec_decode_subtitle2(ist->st->codec,
1568 &subtitle, &got_output, &avpkt);
1569 if (ret < 0)
1570 return ret;
1571 if (!got_output) {
1572 goto discard_packet;
1573 }
1574 subtitle_to_free = &subtitle;
1575 avpkt.size = 0;
1576 break;
1577 default:
1578 return -1;
1579 }
1580 } else {
1581 switch(ist->st->codec->codec_type) {
1582 case AVMEDIA_TYPE_AUDIO:
1583 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1584 ist->st->codec->sample_rate;
1585 break;
1586 case AVMEDIA_TYPE_VIDEO:
1587 if (ist->st->codec->time_base.num != 0) {
1588 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1589 ist->next_pts += ((int64_t)AV_TIME_BASE *
1590 ist->st->codec->time_base.num * ticks) /
1591 ist->st->codec->time_base.den;
1592 }
1593 break;
1594 }
1595 ret = avpkt.size;
1596 avpkt.size = 0;
1597 }
1598
1599 #if CONFIG_AVFILTER
1600 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1601 for (i = 0; i < nb_ostreams; i++) {
1602 ost = ost_table[i];
1603 if (ost->input_video_filter && ost->source_index == ist_index) {
1604 AVRational sar;
1605 if (ist->st->sample_aspect_ratio.num)
1606 sar = ist->st->sample_aspect_ratio;
1607 else
1608 sar = ist->st->codec->sample_aspect_ratio;
1609 // add it to be filtered
1610 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1611 ist->pts,
1612 sar);
1613 }
1614 }
1615 }
1616 #endif
1617
1618 // preprocess audio (volume)
1619 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1620 if (audio_volume != 256) {
1621 short *volp;
1622 volp = samples;
1623 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1624 int v = ((*volp) * audio_volume + 128) >> 8;
1625 if (v < -32768) v = -32768;
1626 if (v > 32767) v = 32767;
1627 *volp++ = v;
1628 }
1629 }
1630 }
1631
1632 /* frame rate emulation */
1633 if (rate_emu) {
1634 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1635 int64_t now = av_gettime() - ist->start;
1636 if (pts > now)
1637 usleep(pts - now);
1638 }
1639 /* if output time reached then transcode raw format,
1640 encode packets and output them */
1641 if (start_time == 0 || ist->pts >= start_time)
1642 for(i=0;i<nb_ostreams;i++) {
1643 int frame_size;
1644
1645 ost = ost_table[i];
1646 if (ost->source_index == ist_index) {
1647 #if CONFIG_AVFILTER
1648 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1649 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1650 while (frame_available) {
1651 AVRational ist_pts_tb;
1652 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1653 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1654 if (ost->picref)
1655 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1656 #endif
1657 os = output_files[ost->file_index];
1658
1659 /* set the input output pts pairs */
1660 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1661
1662 if (ost->encoding_needed) {
1663 av_assert0(ist->decoding_needed);
1664 switch(ost->st->codec->codec_type) {
1665 case AVMEDIA_TYPE_AUDIO:
1666 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1667 break;
1668 case AVMEDIA_TYPE_VIDEO:
1669 #if CONFIG_AVFILTER
1670 if (ost->picref->video && !ost->frame_aspect_ratio)
1671 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1672 #endif
1673 do_video_out(os, ost, ist, &picture, &frame_size,
1674 same_quality ? quality : ost->st->codec->global_quality);
1675 if (vstats_filename && frame_size)
1676 do_video_stats(os, ost, frame_size);
1677 break;
1678 case AVMEDIA_TYPE_SUBTITLE:
1679 do_subtitle_out(os, ost, ist, &subtitle,
1680 pkt->pts);
1681 break;
1682 default:
1683 abort();
1684 }
1685 } else {
1686 AVFrame avframe; //FIXME/XXX remove this
1687 AVPacket opkt;
1688 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1689
1690 av_init_packet(&opkt);
1691
1692 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1693 #if !CONFIG_AVFILTER
1694 continue;
1695 #else
1696 goto cont;
1697 #endif
1698
1699 /* no reencoding needed : output the packet directly */
1700 /* force the input stream PTS */
1701
1702 avcodec_get_frame_defaults(&avframe);
1703 ost->st->codec->coded_frame= &avframe;
1704 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1705
1706 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1707 audio_size += data_size;
1708 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1709 video_size += data_size;
1710 ost->sync_opts++;
1711 }
1712
1713 opkt.stream_index= ost->index;
1714 if(pkt->pts != AV_NOPTS_VALUE)
1715 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1716 else
1717 opkt.pts= AV_NOPTS_VALUE;
1718
1719 if (pkt->dts == AV_NOPTS_VALUE)
1720 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1721 else
1722 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1723 opkt.dts -= ost_tb_start_time;
1724
1725 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1726 opkt.flags= pkt->flags;
1727
1728 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1729 if( ost->st->codec->codec_id != CODEC_ID_H264
1730 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1731 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1732 ) {
1733 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1734 opkt.destruct= av_destruct_packet;
1735 } else {
1736 opkt.data = data_buf;
1737 opkt.size = data_size;
1738 }
1739
1740 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1741 ost->st->codec->frame_number++;
1742 ost->frame_number++;
1743 av_free_packet(&opkt);
1744 }
1745 #if CONFIG_AVFILTER
1746 cont:
1747 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1748 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1749 if (ost->picref)
1750 avfilter_unref_buffer(ost->picref);
1751 }
1752 #endif
1753 }
1754 }
1755
1756 av_free(buffer_to_free);
1757 /* XXX: allocate the subtitles in the codec ? */
1758 if (subtitle_to_free) {
1759 avsubtitle_free(subtitle_to_free);
1760 subtitle_to_free = NULL;
1761 }
1762 }
1763 discard_packet:
1764 if (pkt == NULL) {
1765 /* EOF handling */
1766
1767 for(i=0;i<nb_ostreams;i++) {
1768 ost = ost_table[i];
1769 if (ost->source_index == ist_index) {
1770 AVCodecContext *enc= ost->st->codec;
1771 os = output_files[ost->file_index];
1772
1773 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1774 continue;
1775 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1776 continue;
1777
1778 if (ost->encoding_needed) {
1779 for(;;) {
1780 AVPacket pkt;
1781 int fifo_bytes;
1782 av_init_packet(&pkt);
1783 pkt.stream_index= ost->index;
1784
1785 switch(ost->st->codec->codec_type) {
1786 case AVMEDIA_TYPE_AUDIO:
1787 fifo_bytes = av_fifo_size(ost->fifo);
1788 ret = 0;
1789 /* encode any samples remaining in fifo */
1790 if (fifo_bytes > 0) {
1791 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1792 int fs_tmp = enc->frame_size;
1793
1794 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1795 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1796 enc->frame_size = fifo_bytes / (osize * enc->channels);
1797 } else { /* pad */
1798 int frame_bytes = enc->frame_size*osize*enc->channels;
1799 if (allocated_audio_buf_size < frame_bytes)
1800 exit_program(1);
1801 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1802 }
1803
1804 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1805 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1806 ost->st->time_base.num, enc->sample_rate);
1807 enc->frame_size = fs_tmp;
1808 }
1809 if(ret <= 0) {
1810 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1811 }
1812 if (ret < 0) {
1813 fprintf(stderr, "Audio encoding failed\n");
1814 exit_program(1);
1815 }
1816 audio_size += ret;
1817 pkt.flags |= AV_PKT_FLAG_KEY;
1818 break;
1819 case AVMEDIA_TYPE_VIDEO:
1820 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1821 if (ret < 0) {
1822 fprintf(stderr, "Video encoding failed\n");
1823 exit_program(1);
1824 }
1825 video_size += ret;
1826 if(enc->coded_frame && enc->coded_frame->key_frame)
1827 pkt.flags |= AV_PKT_FLAG_KEY;
1828 if (ost->logfile && enc->stats_out) {
1829 fprintf(ost->logfile, "%s", enc->stats_out);
1830 }
1831 break;
1832 default:
1833 ret=-1;
1834 }
1835
1836 if(ret<=0)
1837 break;
1838 pkt.data= bit_buffer;
1839 pkt.size= ret;
1840 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1841 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1842 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1843 }
1844 }
1845 }
1846 }
1847 }
1848
1849 return 0;
1850 }
1851
1852 static void print_sdp(AVFormatContext **avc, int n)
1853 {
1854 char sdp[2048];
1855
1856 av_sdp_create(avc, n, sdp, sizeof(sdp));
1857 printf("SDP:\n%s\n", sdp);
1858 fflush(stdout);
1859 }
1860
1861 static int copy_chapters(int infile, int outfile)
1862 {
1863 AVFormatContext *is = input_files[infile].ctx;
1864 AVFormatContext *os = output_files[outfile];
1865 int i;
1866
1867 for (i = 0; i < is->nb_chapters; i++) {
1868 AVChapter *in_ch = is->chapters[i], *out_ch;
1869 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
1870 AV_TIME_BASE_Q, in_ch->time_base);
1871 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1872 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1873
1874
1875 if (in_ch->end < ts_off)
1876 continue;
1877 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1878 break;
1879
1880 out_ch = av_mallocz(sizeof(AVChapter));
1881 if (!out_ch)
1882 return AVERROR(ENOMEM);
1883
1884 out_ch->id = in_ch->id;
1885 out_ch->time_base = in_ch->time_base;
1886 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1887 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1888
1889 if (metadata_chapters_autocopy)
1890 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1891
1892 os->nb_chapters++;
1893 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1894 if (!os->chapters)
1895 return AVERROR(ENOMEM);
1896 os->chapters[os->nb_chapters - 1] = out_ch;
1897 }
1898 return 0;
1899 }
1900
1901 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1902 AVCodecContext *avctx)
1903 {
1904 char *p;
1905 int n = 1, i;
1906 int64_t t;
1907
1908 for (p = kf; *p; p++)
1909 if (*p == ',')
1910 n++;
1911 ost->forced_kf_count = n;
1912 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1913 if (!ost->forced_kf_pts) {
1914 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1915 exit_program(1);
1916 }
1917 for (i = 0; i < n; i++) {
1918 p = i ? strchr(p, ',') + 1 : kf;
1919 t = parse_time_or_die("force_key_frames", p, 1);
1920 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1921 }
1922 }
1923
1924 /*
1925 * The following code is the main loop of the file converter
1926 */
1927 static int transcode(AVFormatContext **output_files,
1928 int nb_output_files,
1929 InputFile *input_files,
1930 int nb_input_files,
1931 StreamMap *stream_maps, int nb_stream_maps)
1932 {
1933 int ret = 0, i, j, k, n, nb_ostreams = 0;
1934 AVFormatContext *is, *os;
1935 AVCodecContext *codec, *icodec;
1936 OutputStream *ost, **ost_table = NULL;
1937 InputStream *ist;
1938 char error[1024];
1939 int want_sdp = 1;
1940 uint8_t no_packet[MAX_FILES]={0};
1941 int no_packet_count=0;
1942
1943 if (rate_emu)
1944 for (i = 0; i < nb_input_streams; i++)
1945 input_streams[i].start = av_gettime();
1946
1947 /* output stream init */
1948 nb_ostreams = 0;
1949 for(i=0;i<nb_output_files;i++) {
1950 os = output_files[i];
1951 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1952 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1953 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1954 ret = AVERROR(EINVAL);
1955 goto fail;
1956 }
1957 nb_ostreams += os->nb_streams;
1958 }
1959 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1960 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1961 ret = AVERROR(EINVAL);
1962 goto fail;
1963 }
1964
1965 /* Sanity check the mapping args -- do the input files & streams exist? */
1966 for(i=0;i<nb_stream_maps;i++) {
1967 int fi = stream_maps[i].file_index;
1968 int si = stream_maps[i].stream_index;
1969
1970 if (fi < 0 || fi > nb_input_files - 1 ||
1971 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1972 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1973 ret = AVERROR(EINVAL);
1974 goto fail;
1975 }
1976 fi = stream_maps[i].sync_file_index;
1977 si = stream_maps[i].sync_stream_index;
1978 if (fi < 0 || fi > nb_input_files - 1 ||
1979 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1980 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1981 ret = AVERROR(EINVAL);
1982 goto fail;
1983 }
1984 }
1985
1986 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1987 if (!ost_table)
1988 goto fail;
1989 n = 0;
1990 for(k=0;k<nb_output_files;k++) {
1991 os = output_files[k];
1992 for(i=0;i<os->nb_streams;i++,n++) {
1993 int found;
1994 ost = ost_table[n] = output_streams_for_file[k][i];
1995 if (nb_stream_maps > 0) {
1996 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
1997 stream_maps[n].stream_index;
1998
1999 /* Sanity check that the stream types match */
2000 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2001 int i= ost->file_index;
2002 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2003 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2004 stream_maps[n].file_index, stream_maps[n].stream_index,
2005 ost->file_index, ost->index);
2006 exit_program(1);
2007 }
2008
2009 } else {
2010 int best_nb_frames=-1;
2011 /* get corresponding input stream index : we select the first one with the right type */
2012 found = 0;
2013 for (j = 0; j < nb_input_streams; j++) {
2014 int skip=0;
2015 ist = &input_streams[j];
2016 if(opt_programid){
2017 int pi,si;
2018 AVFormatContext *f = input_files[ist->file_index].ctx;
2019 skip=1;
2020 for(pi=0; pi<f->nb_programs; pi++){
2021 AVProgram *p= f->programs[pi];
2022 if(p->id == opt_programid)
2023 for(si=0; si<p->nb_stream_indexes; si++){
2024 if(f->streams[ p->stream_index[si] ] == ist->st)
2025 skip=0;
2026 }
2027 }
2028 }
2029 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2030 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2031 if(best_nb_frames < ist->st->codec_info_nb_frames){
2032 best_nb_frames= ist->st->codec_info_nb_frames;
2033 ost->source_index = j;
2034 found = 1;
2035 }
2036 }
2037 }
2038
2039 if (!found) {
2040 if(! opt_programid) {
2041 /* try again and reuse existing stream */
2042 for (j = 0; j < nb_input_streams; j++) {
2043 ist = &input_streams[j];
2044 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2045 && ist->st->discard != AVDISCARD_ALL) {
2046 ost->source_index = j;
2047 found = 1;
2048 }
2049 }
2050 }
2051 if (!found) {
2052 int i= ost->file_index;
2053 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2054 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2055 ost->file_index, ost->index);
2056 exit_program(1);
2057 }
2058 }
2059 }
2060 ist = &input_streams[ost->source_index];
2061 ist->discard = 0;
2062 ost->sync_ist = (nb_stream_maps > 0) ?
2063 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2064 stream_maps[n].sync_stream_index] : ist;
2065 }
2066 }
2067
2068 /* for each output stream, we compute the right encoding parameters */
2069 for(i=0;i<nb_ostreams;i++) {
2070 ost = ost_table[i];
2071 os = output_files[ost->file_index];
2072 ist = &input_streams[ost->source_index];
2073
2074 codec = ost->st->codec;
2075 icodec = ist->st->codec;
2076
2077 if (metadata_streams_autocopy)
2078 av_dict_copy(&ost->st->metadata, ist->st->metadata,
2079 AV_DICT_DONT_OVERWRITE);
2080
2081 ost->st->disposition = ist->st->disposition;
2082 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2083 codec->chroma_sample_location = icodec->chroma_sample_location;
2084
2085 if (ost->st->stream_copy) {
2086 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2087
2088 if (extra_size > INT_MAX)
2089 goto fail;
2090
2091 /* if stream_copy is selected, no need to decode or encode */
2092 codec->codec_id = icodec->codec_id;
2093 codec->codec_type = icodec->codec_type;
2094
2095 if(!codec->codec_tag){
2096 if( !os->oformat->codec_tag
2097 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2098 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2099 codec->codec_tag = icodec->codec_tag;
2100 }
2101
2102 codec->bit_rate = icodec->bit_rate;
2103 codec->rc_max_rate = icodec->rc_max_rate;
2104 codec->rc_buffer_size = icodec->rc_buffer_size;
2105 codec->extradata= av_mallocz(extra_size);
2106 if (!codec->extradata)
2107 goto fail;
2108 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2109 codec->extradata_size= icodec->extradata_size;
2110 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2111 codec->time_base = icodec->time_base;
2112 codec->time_base.num *= icodec->ticks_per_frame;
2113 av_reduce(&codec->time_base.num, &codec->time_base.den,
2114 codec->time_base.num, codec->time_base.den, INT_MAX);
2115 }else
2116 codec->time_base = ist->st->time_base;
2117 switch(codec->codec_type) {
2118 case AVMEDIA_TYPE_AUDIO:
2119 if(audio_volume != 256) {
2120 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2121 exit_program(1);
2122 }
2123 codec->channel_layout = icodec->channel_layout;
2124 codec->sample_rate = icodec->sample_rate;
2125 codec->channels = icodec->channels;
2126 codec->frame_size = icodec->frame_size;
2127 codec->audio_service_type = icodec->audio_service_type;
2128 codec->block_align= icodec->block_align;
2129 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2130 codec->block_align= 0;
2131 if(codec->codec_id == CODEC_ID_AC3)
2132 codec->block_align= 0;
2133 break;
2134 case AVMEDIA_TYPE_VIDEO:
2135 codec->pix_fmt = icodec->pix_fmt;
2136 codec->width = icodec->width;
2137 codec->height = icodec->height;
2138 codec->has_b_frames = icodec->has_b_frames;
2139 if (!codec->sample_aspect_ratio.num) {
2140 codec->sample_aspect_ratio =
2141 ost->st->sample_aspect_ratio =
2142 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2143 ist->st->codec->sample_aspect_ratio.num ?
2144 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2145 }
2146 break;
2147 case AVMEDIA_TYPE_SUBTITLE:
2148 codec->width = icodec->width;
2149 codec->height = icodec->height;
2150 break;
2151 case AVMEDIA_TYPE_DATA:
2152 break;
2153 default:
2154 abort();
2155 }
2156 } else {
2157 if (!ost->enc)
2158 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2159 switch(codec->codec_type) {
2160 case AVMEDIA_TYPE_AUDIO:
2161 ost->fifo= av_fifo_alloc(1024);
2162 if(!ost->fifo)
2163 goto fail;
2164 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2165 if (!codec->sample_rate) {
2166 codec->sample_rate = icodec->sample_rate;
2167 if (icodec->lowres)
2168 codec->sample_rate >>= icodec->lowres;
2169 }
2170 choose_sample_rate(ost->st, ost->enc);
2171 codec->time_base = (AVRational){1, codec->sample_rate};
2172 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2173 codec->sample_fmt = icodec->sample_fmt;
2174 choose_sample_fmt(ost->st, ost->enc);
2175 if (!codec->channels)
2176 codec->channels = icodec->channels;
2177 codec->channel_layout = icodec->channel_layout;
2178 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2179 codec->channel_layout = 0;
2180 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2181 icodec->request_channels = codec->channels;
2182 ist->decoding_needed = 1;
2183 ost->encoding_needed = 1;
2184 ost->resample_sample_fmt = icodec->sample_fmt;
2185 ost->resample_sample_rate = icodec->sample_rate;
2186 ost->resample_channels = icodec->channels;
2187 break;
2188 case AVMEDIA_TYPE_VIDEO:
2189 if (codec->pix_fmt == PIX_FMT_NONE)
2190 codec->pix_fmt = icodec->pix_fmt;
2191 choose_pixel_fmt(ost->st, ost->enc);
2192
2193 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2194 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2195 exit_program(1);
2196 }
2197
2198 if (!codec->width || !codec->height) {
2199 codec->width = icodec->width;
2200 codec->height = icodec->height;
2201 }
2202
2203 ost->video_resample = codec->width != icodec->width ||
2204 codec->height != icodec->height ||
2205 codec->pix_fmt != icodec->pix_fmt;
2206 if (ost->video_resample) {
2207 #if !CONFIG_AVFILTER
2208 avcodec_get_frame_defaults(&ost->pict_tmp);
2209 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2210 codec->width, codec->height)) {
2211 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2212 exit_program(1);
2213 }
2214 ost->img_resample_ctx = sws_getContext(
2215 icodec->width,
2216 icodec->height,
2217 icodec->pix_fmt,
2218 codec->width,
2219 codec->height,
2220 codec->pix_fmt,
2221 ost->sws_flags, NULL, NULL, NULL);
2222 if (ost->img_resample_ctx == NULL) {
2223 fprintf(stderr, "Cannot get resampling context\n");
2224 exit_program(1);
2225 }
2226 #endif
2227 codec->bits_per_raw_sample= 0;
2228 }
2229
2230 ost->resample_height = icodec->height;
2231 ost->resample_width = icodec->width;
2232 ost->resample_pix_fmt= icodec->pix_fmt;
2233 ost->encoding_needed = 1;
2234 ist->decoding_needed = 1;
2235
2236 if (!ost->frame_rate.num)
2237 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2238 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2239 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2240 ost->frame_rate = ost->enc->supported_framerates[idx];
2241 }
2242 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2243
2244 #if CONFIG_AVFILTER
2245 if (configure_video_filters(ist, ost)) {
2246 fprintf(stderr, "Error opening filters!\n");
2247 exit(1);
2248 }
2249 #endif
2250 break;
2251 case AVMEDIA_TYPE_SUBTITLE:
2252 ost->encoding_needed = 1;
2253 ist->decoding_needed = 1;
2254 break;
2255 default:
2256 abort();
2257 break;
2258 }
2259 /* two pass mode */
2260 if (ost->encoding_needed &&
2261 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2262 char logfilename[1024];
2263 FILE *f;
2264
2265 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2266 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2267 i);
2268 if (codec->flags & CODEC_FLAG_PASS1) {
2269 f = fopen(logfilename, "wb");
2270 if (!f) {
2271 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2272 exit_program(1);
2273 }
2274 ost->logfile = f;
2275 } else {
2276 char *logbuffer;
2277 size_t logbuffer_size;
2278 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2279 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2280 exit_program(1);
2281 }
2282 codec->stats_in = logbuffer;
2283 }
2284 }
2285 }
2286 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2287 int size= codec->width * codec->height;
2288 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2289 }
2290 }
2291
2292 if (!bit_buffer)
2293 bit_buffer = av_malloc(bit_buffer_size);
2294 if (!bit_buffer) {
2295 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2296 bit_buffer_size);
2297 ret = AVERROR(ENOMEM);
2298 goto fail;
2299 }
2300
2301 /* open each encoder */
2302 for(i=0;i<nb_ostreams;i++) {
2303 ost = ost_table[i];
2304 if (ost->encoding_needed) {
2305 AVCodec *codec = ost->enc;
2306 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2307 if (!codec) {
2308 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2309 ost->st->codec->codec_id, ost->file_index, ost->index);
2310 ret = AVERROR(EINVAL);
2311 goto dump_format;
2312 }
2313 if (dec->subtitle_header) {
2314 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2315 if (!ost->st->codec->subtitle_header) {
2316 ret = AVERROR(ENOMEM);
2317 goto dump_format;
2318 }
2319 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2320 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2321 }
2322 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2323 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2324 ost->file_index, ost->index);
2325 ret = AVERROR(EINVAL);
2326 goto dump_format;
2327 }
2328 assert_codec_experimental(ost->st->codec, 1);
2329 assert_avoptions(ost->opts);
2330 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2331 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2332 "It takes bits/s as argument, not kbits/s\n");
2333 extra_size += ost->st->codec->extradata_size;
2334 }
2335 }
2336
2337 /* open each decoder */
2338 for (i = 0; i < nb_input_streams; i++) {
2339 ist = &input_streams[i];
2340 if (ist->decoding_needed) {
2341 AVCodec *codec = ist->dec;
2342 if (!codec)
2343 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2344 if (!codec) {
2345 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2346 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2347 ret = AVERROR(EINVAL);
2348 goto dump_format;
2349 }
2350
2351 /* update requested sample format for the decoder based on the
2352 corresponding encoder sample format */
2353 for (j = 0; j < nb_ostreams; j++) {
2354 ost = ost_table[j];
2355 if (ost->source_index == i) {
2356 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2357 break;
2358 }
2359 }
2360
2361 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2362 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2363 ist->file_index, ist->st->index);
2364 ret = AVERROR(EINVAL);
2365 goto dump_format;
2366 }
2367 assert_codec_experimental(ist->st->codec, 0);
2368 assert_avoptions(ost->opts);
2369 }
2370 }
2371
2372 /* init pts */
2373 for (i = 0; i < nb_input_streams; i++) {
2374 AVStream *st;
2375 ist = &input_streams[i];
2376 st= ist->st;
2377 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2378 ist->next_pts = AV_NOPTS_VALUE;
2379 init_pts_correction(&ist->pts_ctx);
2380 ist->is_start = 1;
2381 }
2382
2383 /* set meta data information from input file if required */
2384 for (i=0;i<nb_meta_data_maps;i++) {
2385 AVFormatContext *files[2];
2386 AVDictionary **meta[2];
2387 int j;
2388
2389 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2390 if ((index) < 0 || (index) >= (nb_elems)) {\
2391 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2392 (desc), (index));\
2393 ret = AVERROR(EINVAL);\
2394 goto dump_format;\
2395 }
2396
2397 int out_file_index = meta_data_maps[i][0].file;
2398 int in_file_index = meta_data_maps[i][1].file;
2399 if (in_file_index < 0 || out_file_index < 0)
2400 continue;
2401 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2402 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2403
2404 files[0] = output_files[out_file_index];
2405 files[1] = input_files[in_file_index].ctx;
2406
2407 for (j = 0; j < 2; j++) {
2408 MetadataMap *map = &meta_data_maps[i][j];
2409
2410 switch (map->type) {
2411 case 'g':
2412 meta[j] = &files[j]->metadata;
2413 break;
2414 case 's':
2415 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2416 meta[j] = &files[j]->streams[map->index]->metadata;
2417 break;
2418 case 'c':
2419 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2420 meta[j] = &files[j]->chapters[map->index]->metadata;
2421 break;
2422 case 'p':
2423 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2424 meta[j] = &files[j]->programs[map->index]->metadata;
2425 break;
2426 }
2427 }
2428
2429 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2430 }
2431
2432 /* copy global metadata by default */
2433 if (metadata_global_autocopy) {
2434
2435 for (i = 0; i < nb_output_files; i++)
2436 av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2437 AV_DICT_DONT_OVERWRITE);
2438 }
2439
2440 /* copy chapters according to chapter maps */
2441 for (i = 0; i < nb_chapter_maps; i++) {
2442 int infile = chapter_maps[i].in_file;
2443 int outfile = chapter_maps[i].out_file;
2444
2445 if (infile < 0 || outfile < 0)
2446 continue;
2447 if (infile >= nb_input_files) {
2448 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2449 ret = AVERROR(EINVAL);
2450 goto dump_format;
2451 }
2452 if (outfile >= nb_output_files) {
2453 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2454 ret = AVERROR(EINVAL);
2455 goto dump_format;
2456 }
2457 copy_chapters(infile, outfile);
2458 }
2459
2460 /* copy chapters from the first input file that has them*/
2461 if (!nb_chapter_maps)
2462 for (i = 0; i < nb_input_files; i++) {
2463 if (!input_files[i].ctx->nb_chapters)
2464 continue;
2465
2466 for (j = 0; j < nb_output_files; j++)
2467 if ((ret = copy_chapters(i, j)) < 0)
2468 goto dump_format;
2469 break;
2470 }
2471
2472 /* open files and write file headers */
2473 for(i=0;i<nb_output_files;i++) {
2474 os = output_files[i];
2475 if (avformat_write_header(os, &output_opts[i]) < 0) {
2476 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2477 ret = AVERROR(EINVAL);
2478 goto dump_format;
2479 }
2480 assert_avoptions(output_opts[i]);
2481 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2482 want_sdp = 0;
2483 }
2484 }
2485
2486 dump_format:
2487 /* dump the file output parameters - cannot be done before in case
2488 of stream copy */
2489 for(i=0;i<nb_output_files;i++) {
2490 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2491 }
2492
2493 /* dump the stream mapping */
2494 if (verbose >= 0) {
2495 fprintf(stderr, "Stream mapping:\n");
2496 for(i=0;i<nb_ostreams;i++) {
2497 ost = ost_table[i];
2498 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2499 input_streams[ost->source_index].file_index,
2500 input_streams[ost->source_index].st->index,
2501 ost->file_index,
2502 ost->index);
2503 if (ost->sync_ist != &input_streams[ost->source_index])
2504 fprintf(stderr, " [sync #%d.%d]",
2505 ost->sync_ist->file_index,
2506 ost->sync_ist->st->index);
2507 fprintf(stderr, "\n");
2508 }
2509 }
2510
2511 if (ret) {
2512 fprintf(stderr, "%s\n", error);
2513 goto fail;
2514 }
2515
2516 if (want_sdp) {
2517 print_sdp(output_files, nb_output_files);
2518 }
2519
2520 if (verbose >= 0)
2521 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2522 term_init();
2523
2524 timer_start = av_gettime();
2525
2526 for(; received_sigterm == 0;) {
2527 int file_index, ist_index;
2528 AVPacket pkt;
2529 double ipts_min;
2530 double opts_min;
2531
2532 redo:
2533 ipts_min= 1e100;
2534 opts_min= 1e100;
2535
2536 /* select the stream that we must read now by looking at the
2537 smallest output pts */
2538 file_index = -1;
2539 for(i=0;i<nb_ostreams;i++) {
2540 double ipts, opts;
2541 ost = ost_table[i];
2542 os = output_files[ost->file_index];
2543 ist = &input_streams[ost->source_index];
2544 if(ist->is_past_recording_time || no_packet[ist->file_index])
2545 continue;
2546 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2547 ipts = (double)ist->pts;
2548 if (!input_files[ist->file_index].eof_reached){
2549 if(ipts < ipts_min) {
2550 ipts_min = ipts;
2551 if(input_sync ) file_index = ist->file_index;
2552 }
2553 if(opts < opts_min) {
2554 opts_min = opts;
2555 if(!input_sync) file_index = ist->file_index;
2556 }
2557 }
2558 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2559 file_index= -1;
2560 break;
2561 }
2562 }
2563 /* if none, if is finished */
2564 if (file_index < 0) {
2565 if(no_packet_count){
2566 no_packet_count=0;
2567 memset(no_packet, 0, sizeof(no_packet));
2568 usleep(10000);
2569 continue;
2570 }
2571 break;
2572 }
2573
2574 /* finish if limit size exhausted */
2575 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2576 break;
2577
2578 /* read a frame from it and output it in the fifo */
2579 is = input_files[file_index].ctx;
2580 ret= av_read_frame(is, &pkt);
2581 if(ret == AVERROR(EAGAIN)){
2582 no_packet[file_index]=1;
2583 no_packet_count++;
2584 continue;
2585 }
2586 if (ret < 0) {
2587 input_files[file_index].eof_reached = 1;
2588 if (opt_shortest)
2589 break;
2590 else
2591 continue;
2592 }
2593
2594 no_packet_count=0;
2595 memset(no_packet, 0, sizeof(no_packet));
2596
2597 if (do_pkt_dump) {
2598 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2599 is->streams[pkt.stream_index]);
2600 }
2601 /* the following test is needed in case new streams appear
2602 dynamically in stream : we ignore them */
2603 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2604 goto discard_packet;
2605 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2606 ist = &input_streams[ist_index];
2607 if (ist->discard)
2608 goto discard_packet;
2609
2610 if (pkt.dts != AV_NOPTS_VALUE)
2611 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2612 if (pkt.pts != AV_NOPTS_VALUE)
2613 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2614
2615 if (ist->ts_scale) {
2616 if(pkt.pts != AV_NOPTS_VALUE)
2617 pkt.pts *= ist->ts_scale;
2618 if(pkt.dts != AV_NOPTS_VALUE)
2619 pkt.dts *= ist->ts_scale;
2620 }
2621
2622 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2623 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2624 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2625 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2626 int64_t delta= pkt_dts - ist->next_pts;
2627 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2628 input_files[ist->file_index].ts_offset -= delta;
2629 if (verbose > 2)
2630 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2631 delta, input_files[ist->file_index].ts_offset);
2632 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2633 if(pkt.pts != AV_NOPTS_VALUE)
2634 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2635 }
2636 }
2637
2638 /* finish if recording time exhausted */
2639 if (recording_time != INT64_MAX &&
2640 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2641 ist->is_past_recording_time = 1;
2642 goto discard_packet;
2643 }
2644
2645 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2646 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2647
2648 if (verbose >= 0)
2649 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2650 ist->file_index, ist->st->index);
2651 if (exit_on_error)
2652 exit_program(1);
2653 av_free_packet(&pkt);
2654 goto redo;
2655 }
2656
2657 discard_packet:
2658 av_free_packet(&pkt);
2659
2660 /* dump report by using the output first video and audio streams */
2661 print_report(output_files, ost_table, nb_ostreams, 0);
2662 }
2663
2664 /* at the end of stream, we must flush the decoder buffers */
2665 for (i = 0; i < nb_input_streams; i++) {
2666 ist = &input_streams[i];
2667 if (ist->decoding_needed) {
2668 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2669 }
2670 }
2671
2672 term_exit();
2673
2674 /* write the trailer if needed and close file */
2675 for(i=0;i<nb_output_files;i++) {
2676 os = output_files[i];
2677 av_write_trailer(os);
2678 }
2679
2680 /* dump report by using the first video and audio streams */
2681 print_report(output_files, ost_table, nb_ostreams, 1);
2682
2683 /* close each encoder */
2684 for(i=0;i<nb_ostreams;i++) {
2685 ost = ost_table[i];
2686 if (ost->encoding_needed) {
2687 av_freep(&ost->st->codec->stats_in);
2688 avcodec_close(ost->st->codec);
2689 }
2690 #if CONFIG_AVFILTER
2691 avfilter_graph_free(&ost->graph);
2692 #endif
2693 }
2694
2695 /* close each decoder */
2696 for (i = 0; i < nb_input_streams; i++) {
2697 ist = &input_streams[i];
2698 if (ist->decoding_needed) {
2699 avcodec_close(ist->st->codec);
2700 }
2701 }
2702
2703 /* finished ! */
2704 ret = 0;
2705
2706 fail:
2707 av_freep(&bit_buffer);
2708
2709 if (ost_table) {
2710 for(i=0;i<nb_ostreams;i++) {
2711 ost = ost_table[i];
2712 if (ost) {
2713 if (ost->st->stream_copy)
2714 av_freep(&ost->st->codec->extradata);
2715 if (ost->logfile) {
2716 fclose(ost->logfile);
2717 ost->logfile = NULL;
2718 }
2719 av_fifo_free(ost->fifo); /* works even if fifo is not
2720 initialized but set to zero */
2721 av_freep(&ost->st->codec->subtitle_header);
2722 av_free(ost->pict_tmp.data[0]);
2723 av_free(ost->forced_kf_pts);
2724 if (ost->video_resample)
2725 sws_freeContext(ost->img_resample_ctx);
2726 if (ost->resample)
2727 audio_resample_close(ost->resample);
2728 if (ost->reformat_ctx)
2729 av_audio_convert_free(ost->reformat_ctx);
2730 av_dict_free(&ost->opts);
2731 av_free(ost);
2732 }
2733 }
2734 av_free(ost_table);
2735 }
2736 return ret;
2737 }
2738
2739 static int opt_format(const char *opt, const char *arg)
2740 {
2741 last_asked_format = arg;
2742 return 0;
2743 }
2744
2745 static int opt_video_rc_override_string(const char *opt, const char *arg)
2746 {
2747 video_rc_override_string = arg;
2748 return 0;
2749 }
2750
2751 static int opt_me_threshold(const char *opt, const char *arg)
2752 {
2753 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2754 return 0;
2755 }
2756
2757 static int opt_verbose(const char *opt, const char *arg)
2758 {
2759 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2760 return 0;
2761 }
2762
2763 static int opt_frame_rate(const char *opt, const char *arg)
2764 {
2765 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2766 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2767 exit_program(1);
2768 }
2769 return 0;
2770 }
2771
2772 static int opt_frame_crop(const char *opt, const char *arg)
2773 {
2774 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2775 return AVERROR(EINVAL);
2776 }
2777
2778 static int opt_frame_size(const char *opt, const char *arg)
2779 {
2780 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2781 fprintf(stderr, "Incorrect frame size\n");
2782 return AVERROR(EINVAL);
2783 }
2784 return 0;
2785 }
2786
2787 static int opt_pad(const char *opt, const char *arg) {
2788 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2789 return -1;
2790 }
2791
2792 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2793 {
2794 if (strcmp(arg, "list")) {
2795 frame_pix_fmt = av_get_pix_fmt(arg);
2796 if (frame_pix_fmt == PIX_FMT_NONE) {
2797 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2798 return AVERROR(EINVAL);
2799 }
2800 } else {
2801 show_pix_fmts();
2802 exit_program(0);
2803 }
2804 return 0;
2805 }
2806
2807 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2808 {
2809 int x = 0, y = 0;
2810 double ar = 0;
2811 const char *p;
2812 char *end;
2813
2814 p = strchr(arg, ':');
2815 if (p) {
2816 x = strtol(arg, &end, 10);
2817 if (end == p)
2818 y = strtol(end+1, &end, 10);
2819 if (x > 0 && y > 0)
2820 ar = (double)x / (double)y;
2821 } else
2822 ar = strtod(arg, NULL);
2823
2824 if (!ar) {
2825 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2826 return AVERROR(EINVAL);
2827 }
2828 frame_aspect_ratio = ar;
2829 return 0;
2830 }
2831
2832 static int opt_metadata(const char *opt, const char *arg)
2833 {
2834 char *mid= strchr(arg, '=');
2835
2836 if(!mid){
2837 fprintf(stderr, "Missing =\n");
2838 exit_program(1);
2839 }
2840 *mid++= 0;
2841
2842 av_dict_set(&metadata, arg, mid, 0);
2843
2844 return 0;
2845 }
2846
2847 static int opt_qscale(const char *opt, const char *arg)
2848 {
2849 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2850 if (video_qscale == 0) {
2851 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2852 return AVERROR(EINVAL);
2853 }
2854 return 0;
2855 }
2856
2857 static int opt_top_field_first(const char *opt, const char *arg)
2858 {
2859 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2860 return 0;
2861 }
2862
2863 static int opt_thread_count(const char *opt, const char *arg)
2864 {
2865 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2866 #if !HAVE_THREADS
2867 if (verbose >= 0)
2868 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2869 #endif
2870 return 0;
2871 }
2872
2873 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2874 {
2875 if (strcmp(arg, "list")) {
2876 audio_sample_fmt = av_get_sample_fmt(arg);
2877 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2878 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2879 return AVERROR(EINVAL);
2880 }
2881 } else {
2882 int i;
2883 char fmt_str[128];
2884 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2885 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2886 exit_program(0);
2887 }
2888 return 0;
2889 }
2890
2891 static int opt_audio_rate(const char *opt, const char *arg)
2892 {
2893 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2894 return 0;
2895 }
2896
2897 static int opt_audio_channels(const char *opt, const char *arg)
2898 {
2899 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2900 return 0;
2901 }
2902
2903 static int opt_video_channel(const char *opt, const char *arg)
2904 {
2905 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2906 opt_default("channel", arg);
2907 return 0;
2908 }
2909
2910 static int opt_video_standard(const char *opt, const char *arg)
2911 {
2912 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2913 opt_default("standard", arg);
2914 return 0;
2915 }
2916
2917 static int opt_codec(int *pstream_copy, char **pcodec_name,
2918 int codec_type, const char *arg)
2919 {
2920 av_freep(pcodec_name);
2921 if (!strcmp(arg, "copy")) {
2922 *pstream_copy = 1;
2923 } else {
2924 *pcodec_name = av_strdup(arg);
2925 }
2926 return 0;
2927 }
2928
2929 static int opt_audio_codec(const char *opt, const char *arg)
2930 {
2931 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2932 }
2933
2934 static int opt_video_codec(const char *opt, const char *arg)
2935 {
2936 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2937 }
2938
2939 static int opt_subtitle_codec(const char *opt, const char *arg)
2940 {
2941 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2942 }
2943
2944 static int opt_data_codec(const char *opt, const char *arg)
2945 {
2946 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2947 }
2948
2949 static int opt_codec_tag(const char *opt, const char *arg)
2950 {
2951 char *tail;
2952 uint32_t *codec_tag;
2953
2954 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2955 !strcmp(opt, "vtag") ? &video_codec_tag :
2956 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2957 if (!codec_tag)
2958 return -1;
2959
2960 *codec_tag = strtol(arg, &tail, 0);
2961 if (!tail || *tail)
2962 *codec_tag = AV_RL32(arg);
2963
2964 return 0;
2965 }
2966
2967 static int opt_map(const char *opt, const char *arg)
2968 {
2969 StreamMap *m;
2970 char *p;
2971
2972 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2973 m = &stream_maps[nb_stream_maps-1];
2974
2975 m->file_index = strtol(arg, &p, 0);
2976 if (*p)
2977 p++;
2978
2979 m->stream_index = strtol(p, &p, 0);
2980 if (*p) {
2981 p++;
2982 m->sync_file_index = strtol(p, &p, 0);
2983 if (*p)
2984 p++;
2985 m->sync_stream_index = strtol(p, &p, 0);
2986 } else {
2987 m->sync_file_index = m->file_index;
2988 m->sync_stream_index = m->stream_index;
2989 }
2990 return 0;
2991 }
2992
2993 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2994 {
2995 *endptr = arg;
2996 if (*arg == ',') {
2997 *type = *(++arg);
2998 switch (*arg) {
2999 case 'g':
3000 break;
3001 case 's':
3002 case 'c':
3003 case 'p':
3004 *index = strtol(++arg, endptr, 0);
3005 break;
3006 default:
3007 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3008 exit_program(1);
3009 }
3010 } else
3011 *type = 'g';
3012 }
3013
3014 static int opt_map_metadata(const char *opt, const char *arg)
3015 {
3016 MetadataMap *m, *m1;
3017 char *p;
3018
3019 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3020 &nb_meta_data_maps, nb_meta_data_maps + 1);
3021
3022 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3023 m->file = strtol(arg, &p, 0);
3024 parse_meta_type(p, &m->type, &m->index, &p);
3025 if (*p)
3026 p++;
3027
3028 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3029 m1->file = strtol(p, &p, 0);
3030 parse_meta_type(p, &m1->type, &m1->index, &p);
3031
3032 if (m->type == 'g' || m1->type == 'g')
3033 metadata_global_autocopy = 0;
3034 if (m->type == 's' || m1->type == 's')
3035 metadata_streams_autocopy = 0;
3036 if (m->type == 'c' || m1->type == 'c')
3037 metadata_chapters_autocopy = 0;
3038
3039 return 0;
3040 }
3041
3042 static int opt_map_meta_data(const char *opt, const char *arg)
3043 {
3044 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3045 "Use -map_metadata instead.\n");
3046 return opt_map_metadata(opt, arg);
3047 }
3048
3049 static int opt_map_chapters(const char *opt, const char *arg)
3050 {
3051 ChapterMap *c;
3052 char *p;
3053
3054 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3055 nb_chapter_maps + 1);
3056 c = &chapter_maps[nb_chapter_maps - 1];
3057 c->out_file = strtol(arg, &p, 0);
3058 if (*p)
3059 p++;
3060
3061 c->in_file = strtol(p, &p, 0);
3062 return 0;
3063 }
3064
3065 static int opt_input_ts_scale(const char *opt, const char *arg)
3066 {
3067 unsigned int stream;
3068 double scale;
3069 char *p;
3070
3071 stream = strtol(arg, &p, 0);
3072 if (*p)
3073 p++;
3074 scale= strtod(p, &p);
3075
3076 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3077 ts_scale[stream] = scale;
3078 return 0;
3079 }
3080
3081 static int opt_recording_time(const char *opt, const char *arg)
3082 {
3083 recording_time = parse_time_or_die(opt, arg, 1);
3084 return 0;
3085 }
3086
3087 static int opt_start_time(const char *opt, const char *arg)
3088 {
3089 start_time = parse_time_or_die(opt, arg, 1);
3090 return 0;
3091 }
3092
3093 static int opt_recording_timestamp(const char *opt, const char *arg)
3094 {
3095 char buf[128];
3096 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3097 struct tm time = *gmtime((time_t*)&recording_timestamp);
3098 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3099 opt_metadata("metadata", buf);
3100
3101 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3102 "tag instead.\n", opt);
3103 return 0;
3104 }
3105
3106 static int opt_input_ts_offset(const char *opt, const char *arg)
3107 {
3108 input_ts_offset = parse_time_or_die(opt, arg, 1);
3109 return 0;
3110 }
3111
3112 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3113 {
3114 const char *codec_string = encoder ? "encoder" : "decoder";
3115 AVCodec *codec;
3116
3117 if(!name)
3118 return CODEC_ID_NONE;
3119 codec = encoder ?
3120 avcodec_find_encoder_by_name(name) :
3121 avcodec_find_decoder_by_name(name);
3122 if(!codec) {
3123 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3124 exit_program(1);
3125 }
3126 if(codec->type != type) {
3127 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3128 exit_program(1);
3129 }
3130 return codec->id;
3131 }
3132
3133 static int opt_input_file(const char *opt, const char *filename)
3134 {
3135 AVFormatContext *ic;
3136 AVInputFormat *file_iformat = NULL;
3137 int err, i, ret, rfps, rfps_base;
3138 int64_t timestamp;
3139 uint8_t buf[128];
3140 AVDictionary **opts;
3141 int orig_nb_streams; // number of streams before avformat_find_stream_info
3142
3143 if (last_asked_format) {
3144 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3145 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3146 exit_program(1);
3147 }
3148 last_asked_format = NULL;
3149 }
3150
3151 if (!strcmp(filename, "-"))
3152 filename = "pipe:";
3153
3154 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3155 !strcmp(filename, "/dev/stdin");
3156
3157 /* get default parameters from command line */
3158 ic = avformat_alloc_context();
3159 if (!ic) {
3160 print_error(filename, AVERROR(ENOMEM));
3161 exit_program(1);
3162 }
3163 if</