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build: rework rules for things in the tools dir
[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 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
106
107 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
108
109 static const char *last_asked_format = NULL;
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static int nb_input_files_ts_scale[MAX_FILES] = {0};
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVDictionary *output_opts[MAX_FILES];
115 static int nb_output_files = 0;
116
117 static StreamMap *stream_maps = NULL;
118 static int nb_stream_maps;
119
120 /* first item specifies output metadata, second is input */
121 static MetadataMap (*meta_data_maps)[2] = NULL;
122 static int nb_meta_data_maps;
123 static int metadata_global_autocopy = 1;
124 static int metadata_streams_autocopy = 1;
125 static int metadata_chapters_autocopy = 1;
126
127 static ChapterMap *chapter_maps = NULL;
128 static int nb_chapter_maps;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
139 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
140 static AVRational frame_rate;
141 static float video_qscale = 0;
142 static uint16_t *intra_matrix = NULL;
143 static uint16_t *inter_matrix = NULL;
144 static const char *video_rc_override_string=NULL;
145 static int video_disable = 0;
146 static int video_discard = 0;
147 static char *video_codec_name = NULL;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quality = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int loop_input = 0;
156 static int loop_output = AVFMT_NOOUTPUTLOOP;
157 static int qp_hist = 0;
158 #if CONFIG_AVFILTER
159 static char *vfilters = NULL;
160 #endif
161
162 static int intra_only = 0;
163 static int audio_sample_rate = 0;
164 static int64_t channel_layout = 0;
165 #define QSCALE_NONE -99999
166 static float audio_qscale = QSCALE_NONE;
167 static int audio_disable = 0;
168 static int audio_channels = 0;
169 static char *audio_codec_name = NULL;
170 static unsigned int audio_codec_tag = 0;
171 static char *audio_language = NULL;
172
173 static int subtitle_disable = 0;
174 static char *subtitle_codec_name = NULL;
175 static char *subtitle_language = NULL;
176 static unsigned int subtitle_codec_tag = 0;
177
178 static int data_disable = 0;
179 static char *data_codec_name = NULL;
180 static unsigned int data_codec_tag = 0;
181
182 static float mux_preload= 0.5;
183 static float mux_max_delay= 0.7;
184
185 static int64_t recording_time = INT64_MAX;
186 static int64_t start_time = 0;
187 static int64_t recording_timestamp = 0;
188 static int64_t input_ts_offset = 0;
189 static int file_overwrite = 0;
190 static AVDictionary *metadata;
191 static int do_benchmark = 0;
192 static int do_hex_dump = 0;
193 static int do_pkt_dump = 0;
194 static int do_psnr = 0;
195 static int do_pass = 0;
196 static char *pass_logfilename_prefix = NULL;
197 static int audio_stream_copy = 0;
198 static int video_stream_copy = 0;
199 static int subtitle_stream_copy = 0;
200 static int data_stream_copy = 0;
201 static int video_sync_method= -1;
202 static int audio_sync_method= 0;
203 static float audio_drift_threshold= 0.1;
204 static int copy_ts= 0;
205 static int copy_tb;
206 static int opt_shortest = 0;
207 static char *vstats_filename;
208 static FILE *vstats_file;
209 static int opt_programid = 0;
210 static int copy_initial_nonkeyframes = 0;
211
212 static int rate_emu = 0;
213
214 static int audio_volume = 256;
215
216 static int exit_on_error = 0;
217 static int using_stdin = 0;
218 static int verbose = 1;
219 static int thread_count= 1;
220 static int64_t video_size = 0;
221 static int64_t audio_size = 0;
222 static int64_t extra_size = 0;
223 static int nb_frames_dup = 0;
224 static int nb_frames_drop = 0;
225 static int input_sync;
226 static uint64_t limit_filesize = 0;
227 static int force_fps = 0;
228 static char *forced_key_frames = NULL;
229
230 static float dts_delta_threshold = 10;
231
232 static int64_t timer_start;
233
234 static uint8_t *audio_buf;
235 static uint8_t *audio_out;
236 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
237
238 static short *samples;
239
240 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
241 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
242 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
243
244 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
245
246 struct InputStream;
247
248 typedef struct OutputStream {
249 int file_index; /* file index */
250 int index; /* stream index in the output file */
251 int source_index; /* InputStream index */
252 AVStream *st; /* stream in the output file */
253 int encoding_needed; /* true if encoding needed for this stream */
254 int frame_number;
255 /* input pts and corresponding output pts
256 for A/V sync */
257 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
258 struct InputStream *sync_ist; /* input stream to sync against */
259 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
260 AVBitStreamFilterContext *bitstream_filters;
261 AVCodec *enc;
262
263 /* video only */
264 int video_resample;
265 AVFrame pict_tmp; /* temporary image for resampling */
266 struct SwsContext *img_resample_ctx; /* for image resampling */
267 int resample_height;
268 int resample_width;
269 int resample_pix_fmt;
270 AVRational frame_rate;
271
272 float frame_aspect_ratio;
273
274 /* forced key frames */
275 int64_t *forced_kf_pts;
276 int forced_kf_count;
277 int forced_kf_index;
278
279 /* audio only */
280 int audio_resample;
281 ReSampleContext *resample; /* for audio resampling */
282 int resample_sample_fmt;
283 int resample_channels;
284 int resample_sample_rate;
285 int reformat_pair;
286 AVAudioConvert *reformat_ctx;
287 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
288 FILE *logfile;
289
290 #if CONFIG_AVFILTER
291 AVFilterContext *output_video_filter;
292 AVFilterContext *input_video_filter;
293 AVFilterBufferRef *picref;
294 char *avfilter;
295 AVFilterGraph *graph;
296 #endif
297
298 int sws_flags;
299 } OutputStream;
300
301 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
302 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
303
304 typedef struct InputStream {
305 int file_index;
306 AVStream *st;
307 int discard; /* true if stream data should be discarded */
308 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
309 AVCodec *dec;
310
311 int64_t start; /* time when read started */
312 int64_t next_pts; /* synthetic pts for cases where pkt.pts
313 is not defined */
314 int64_t pts; /* current pts */
315 PtsCorrectionContext pts_ctx;
316 int is_start; /* is 1 at the start and after a discontinuity */
317 int showed_multi_packet_warning;
318 int is_past_recording_time;
319 } InputStream;
320
321 typedef struct InputFile {
322 AVFormatContext *ctx;
323 int eof_reached; /* true if eof reached */
324 int ist_index; /* index of first stream in ist_table */
325 int buffer_size; /* current total buffer size */
326 int64_t ts_offset;
327 } InputFile;
328
329 static InputStream *input_streams = NULL;
330 static int nb_input_streams = 0;
331 static InputFile *input_files = NULL;
332 static int nb_input_files = 0;
333
334 #if CONFIG_AVFILTER
335
336 static int configure_video_filters(InputStream *ist, OutputStream *ost)
337 {
338 AVFilterContext *last_filter, *filter;
339 /** filter graph containing all filters including input & output */
340 AVCodecContext *codec = ost->st->codec;
341 AVCodecContext *icodec = ist->st->codec;
342 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
343 AVRational sample_aspect_ratio;
344 char args[255];
345 int ret;
346
347 ost->graph = avfilter_graph_alloc();
348
349 if (ist->st->sample_aspect_ratio.num){
350 sample_aspect_ratio = ist->st->sample_aspect_ratio;
351 }else
352 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
353
354 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
355 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
356 sample_aspect_ratio.num, sample_aspect_ratio.den);
357
358 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
359 "src", args, NULL, ost->graph);
360 if (ret < 0)
361 return ret;
362 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
363 "out", NULL, &ffsink_ctx, ost->graph);
364 if (ret < 0)
365 return ret;
366 last_filter = ost->input_video_filter;
367
368 if (codec->width != icodec->width || codec->height != icodec->height) {
369 snprintf(args, 255, "%d:%d:flags=0x%X",
370 codec->width,
371 codec->height,
372 ost->sws_flags);
373 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
374 NULL, args, NULL, ost->graph)) < 0)
375 return ret;
376 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
377 return ret;
378 last_filter = filter;
379 }
380
381 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
382 ost->graph->scale_sws_opts = av_strdup(args);
383
384 if (ost->avfilter) {
385 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
386 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
387
388 outputs->name = av_strdup("in");
389 outputs->filter_ctx = last_filter;
390 outputs->pad_idx = 0;
391 outputs->next = NULL;
392
393 inputs->name = av_strdup("out");
394 inputs->filter_ctx = ost->output_video_filter;
395 inputs->pad_idx = 0;
396 inputs->next = NULL;
397
398 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
399 return ret;
400 av_freep(&ost->avfilter);
401 } else {
402 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
403 return ret;
404 }
405
406 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
407 return ret;
408
409 codec->width = ost->output_video_filter->inputs[0]->w;
410 codec->height = ost->output_video_filter->inputs[0]->h;
411 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
412 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
413 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
414 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
415
416 return 0;
417 }
418 #endif /* CONFIG_AVFILTER */
419
420 static void term_exit(void)
421 {
422 av_log(NULL, AV_LOG_QUIET, "");
423 }
424
425 static volatile int received_sigterm = 0;
426 static volatile int received_nb_signals = 0;
427
428 static void
429 sigterm_handler(int sig)
430 {
431 received_sigterm = sig;
432 received_nb_signals++;
433 term_exit();
434 }
435
436 static void term_init(void)
437 {
438 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
439 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
440 #ifdef SIGXCPU
441 signal(SIGXCPU, sigterm_handler);
442 #endif
443 }
444
445 static int decode_interrupt_cb(void)
446 {
447 return received_nb_signals > 1;
448 }
449
450 static int ffmpeg_exit(int ret)
451 {
452 int i;
453
454 /* close files */
455 for(i=0;i<nb_output_files;i++) {
456 AVFormatContext *s = output_files[i];
457 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
458 avio_close(s->pb);
459 avformat_free_context(s);
460 av_free(output_streams_for_file[i]);
461 av_dict_free(&output_opts[i]);
462 }
463 for(i=0;i<nb_input_files;i++) {
464 av_close_input_file(input_files[i].ctx);
465 av_free(input_files_ts_scale[i]);
466 }
467
468 av_free(intra_matrix);
469 av_free(inter_matrix);
470
471 if (vstats_file)
472 fclose(vstats_file);
473 av_free(vstats_filename);
474
475 av_free(streamid_map);
476 av_free(stream_maps);
477 av_free(meta_data_maps);
478
479 av_freep(&input_streams);
480 av_freep(&input_files);
481
482 av_free(video_codec_name);
483 av_free(audio_codec_name);
484 av_free(subtitle_codec_name);
485 av_free(data_codec_name);
486
487 uninit_opts();
488 av_free(audio_buf);
489 av_free(audio_out);
490 allocated_audio_buf_size= allocated_audio_out_size= 0;
491 av_free(samples);
492
493 #if CONFIG_AVFILTER
494 avfilter_uninit();
495 #endif
496
497 if (received_sigterm) {
498 fprintf(stderr,
499 "Received signal %d: terminating.\n",
500 (int) received_sigterm);
501 exit (255);
502 }
503
504 exit(ret); /* not all OS-es handle main() return value */
505 return ret;
506 }
507
508 static void assert_avoptions(AVDictionary *m)
509 {
510 AVDictionaryEntry *t;
511 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
512 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
513 ffmpeg_exit(1);
514 }
515 }
516
517 /* similar to ff_dynarray_add() and av_fast_realloc() */
518 static void *grow_array(void *array, int elem_size, int *size, int new_size)
519 {
520 if (new_size >= INT_MAX / elem_size) {
521 fprintf(stderr, "Array too big.\n");
522 ffmpeg_exit(1);
523 }
524 if (*size < new_size) {
525 uint8_t *tmp = av_realloc(array, new_size*elem_size);
526 if (!tmp) {
527 fprintf(stderr, "Could not alloc buffer.\n");
528 ffmpeg_exit(1);
529 }
530 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
531 *size = new_size;
532 return tmp;
533 }
534 return array;
535 }
536
537 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
538 {
539 if(codec && codec->sample_fmts){
540 const enum AVSampleFormat *p= codec->sample_fmts;
541 for(; *p!=-1; p++){
542 if(*p == st->codec->sample_fmt)
543 break;
544 }
545 if (*p == -1) {
546 av_log(NULL, AV_LOG_WARNING,
547 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
548 av_get_sample_fmt_name(st->codec->sample_fmt),
549 codec->name,
550 av_get_sample_fmt_name(codec->sample_fmts[0]));
551 st->codec->sample_fmt = codec->sample_fmts[0];
552 }
553 }
554 }
555
556 /**
557 * Update the requested input sample format based on the output sample format.
558 * This is currently only used to request float output from decoders which
559 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
560 * Ideally this will be removed in the future when decoders do not do format
561 * conversion and only output in their native format.
562 */
563 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
564 AVCodecContext *enc)
565 {
566 /* if sample formats match or a decoder sample format has already been
567 requested, just return */
568 if (enc->sample_fmt == dec->sample_fmt ||
569 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
570 return;
571
572 /* if decoder supports more than one output format */
573 if (dec_codec && dec_codec->sample_fmts &&
574 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
575 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
576 const enum AVSampleFormat *p;
577 int min_dec = -1, min_inc = -1;
578
579 /* find a matching sample format in the encoder */
580 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
581 if (*p == enc->sample_fmt) {
582 dec->request_sample_fmt = *p;
583 return;
584 } else if (*p > enc->sample_fmt) {
585 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
586 } else
587 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
588 }
589
590 /* if none match, provide the one that matches quality closest */
591 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
592 enc->sample_fmt - min_dec;
593 }
594 }
595
596 static void choose_sample_rate(AVStream *st, AVCodec *codec)
597 {
598 if(codec && codec->supported_samplerates){
599 const int *p= codec->supported_samplerates;
600 int best=0;
601 int best_dist=INT_MAX;
602 for(; *p; p++){
603 int dist= abs(st->codec->sample_rate - *p);
604 if(dist < best_dist){
605 best_dist= dist;
606 best= *p;
607 }
608 }
609 if(best_dist){
610 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
611 }
612 st->codec->sample_rate= best;
613 }
614 }
615
616 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
617 {
618 if(codec && codec->pix_fmts){
619 const enum PixelFormat *p= codec->pix_fmts;
620 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
621 if(st->codec->codec_id==CODEC_ID_MJPEG){
622 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
623 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
624 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};
625 }
626 }
627 for(; *p!=-1; p++){
628 if(*p == st->codec->pix_fmt)
629 break;
630 }
631 if (*p == -1) {
632 if(st->codec->pix_fmt != PIX_FMT_NONE)
633 av_log(NULL, AV_LOG_WARNING,
634 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
635 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
636 codec->name,
637 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
638 st->codec->pix_fmt = codec->pix_fmts[0];
639 }
640 }
641 }
642
643 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
644 {
645 int idx = oc->nb_streams - 1;
646 OutputStream *ost;
647
648 output_streams_for_file[file_idx] =
649 grow_array(output_streams_for_file[file_idx],
650 sizeof(*output_streams_for_file[file_idx]),
651 &nb_output_streams_for_file[file_idx],
652 oc->nb_streams);
653 ost = output_streams_for_file[file_idx][idx] =
654 av_mallocz(sizeof(OutputStream));
655 if (!ost) {
656 fprintf(stderr, "Could not alloc output stream\n");
657 ffmpeg_exit(1);
658 }
659 ost->file_index = file_idx;
660 ost->index = idx;
661
662 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
663 return ost;
664 }
665
666 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
667 {
668 int i, err;
669 AVFormatContext *ic = NULL;
670 int nopts = 0;
671
672 err = avformat_open_input(&ic, filename, NULL, NULL);
673 if (err < 0)
674 return err;
675 /* copy stream format */
676 s->nb_streams = 0;
677 s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
678 for(i=0;i<ic->nb_streams;i++) {
679 AVStream *st;
680 AVCodec *codec;
681
682 s->nb_streams++;
683
684 // FIXME: a more elegant solution is needed
685 st = av_mallocz(sizeof(AVStream));
686 memcpy(st, ic->streams[i], sizeof(AVStream));
687 st->info = NULL;
688 st->codec = avcodec_alloc_context();
689 if (!st->codec) {
690 print_error(filename, AVERROR(ENOMEM));
691 ffmpeg_exit(1);
692 }
693 avcodec_copy_context(st->codec, ic->streams[i]->codec);
694 s->streams[i] = st;
695
696 codec = avcodec_find_encoder(st->codec->codec_id);
697 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
698 if (audio_stream_copy) {
699 st->stream_copy = 1;
700 } else
701 choose_sample_fmt(st, codec);
702 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
703 if (video_stream_copy) {
704 st->stream_copy = 1;
705 } else
706 choose_pixel_fmt(st, codec);
707 }
708
709 if(st->codec->flags & CODEC_FLAG_BITEXACT)
710 nopts = 1;
711
712 new_output_stream(s, nb_output_files);
713 }
714
715 if (!nopts)
716 s->timestamp = av_gettime();
717
718 av_close_input_file(ic);
719 return 0;
720 }
721
722 static double
723 get_sync_ipts(const OutputStream *ost)
724 {
725 const InputStream *ist = ost->sync_ist;
726 return (double)(ist->pts - start_time)/AV_TIME_BASE;
727 }
728
729 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
730 int ret;
731
732 while(bsfc){
733 AVPacket new_pkt= *pkt;
734 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
735 &new_pkt.data, &new_pkt.size,
736 pkt->data, pkt->size,
737 pkt->flags & AV_PKT_FLAG_KEY);
738 if(a>0){
739 av_free_packet(pkt);
740 new_pkt.destruct= av_destruct_packet;
741 } else if(a<0){
742 fprintf(stderr, "%s failed for stream %d, codec %s",
743 bsfc->filter->name, pkt->stream_index,
744 avctx->codec ? avctx->codec->name : "copy");
745 print_error("", a);
746 if (exit_on_error)
747 ffmpeg_exit(1);
748 }
749 *pkt= new_pkt;
750
751 bsfc= bsfc->next;
752 }
753
754 ret= av_interleaved_write_frame(s, pkt);
755 if(ret < 0){
756 print_error("av_interleaved_write_frame()", ret);
757 ffmpeg_exit(1);
758 }
759 }
760
761 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
762
763 static void do_audio_out(AVFormatContext *s,
764 OutputStream *ost,
765 InputStream *ist,
766 unsigned char *buf, int size)
767 {
768 uint8_t *buftmp;
769 int64_t audio_out_size, audio_buf_size;
770 int64_t allocated_for_size= size;
771
772 int size_out, frame_bytes, ret, resample_changed;
773 AVCodecContext *enc= ost->st->codec;
774 AVCodecContext *dec= ist->st->codec;
775 int osize = av_get_bytes_per_sample(enc->sample_fmt);
776 int isize = av_get_bytes_per_sample(dec->sample_fmt);
777 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
778
779 need_realloc:
780 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
781 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
782 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
783 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
784 audio_buf_size*= osize*enc->channels;
785
786 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
787 if(coded_bps > 8*osize)
788 audio_out_size= audio_out_size * coded_bps / (8*osize);
789 audio_out_size += FF_MIN_BUFFER_SIZE;
790
791 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
792 fprintf(stderr, "Buffer sizes too large\n");
793 ffmpeg_exit(1);
794 }
795
796 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
797 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
798 if (!audio_buf || !audio_out){
799 fprintf(stderr, "Out of memory in do_audio_out\n");
800 ffmpeg_exit(1);
801 }
802
803 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
804 ost->audio_resample = 1;
805
806 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
807 ost->resample_channels != dec->channels ||
808 ost->resample_sample_rate != dec->sample_rate;
809
810 if ((ost->audio_resample && !ost->resample) || resample_changed) {
811 if (resample_changed) {
812 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",
813 ist->file_index, ist->st->index,
814 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
815 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
816 ost->resample_sample_fmt = dec->sample_fmt;
817 ost->resample_channels = dec->channels;
818 ost->resample_sample_rate = dec->sample_rate;
819 if (ost->resample)
820 audio_resample_close(ost->resample);
821 }
822 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
823 if (audio_sync_method <= 1 &&
824 ost->resample_sample_fmt == enc->sample_fmt &&
825 ost->resample_channels == enc->channels &&
826 ost->resample_sample_rate == enc->sample_rate) {
827 ost->resample = NULL;
828 ost->audio_resample = 0;
829 } else if (ost->audio_resample) {
830 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
831 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
832 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
833 enc->sample_rate, dec->sample_rate,
834 enc->sample_fmt, dec->sample_fmt,
835 16, 10, 0, 0.8);
836 if (!ost->resample) {
837 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
838 dec->channels, dec->sample_rate,
839 enc->channels, enc->sample_rate);
840 ffmpeg_exit(1);
841 }
842 }
843 }
844
845 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
846 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
847 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
848 if (ost->reformat_ctx)
849 av_audio_convert_free(ost->reformat_ctx);
850 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
851 dec->sample_fmt, 1, NULL, 0);
852 if (!ost->reformat_ctx) {
853 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
854 av_get_sample_fmt_name(dec->sample_fmt),
855 av_get_sample_fmt_name(enc->sample_fmt));
856 ffmpeg_exit(1);
857 }
858 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
859 }
860
861 if(audio_sync_method){
862 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
863 - av_fifo_size(ost->fifo)/(enc->channels * 2);
864 double idelta= delta*dec->sample_rate / enc->sample_rate;
865 int byte_delta= ((int)idelta)*2*dec->channels;
866
867 //FIXME resample delay
868 if(fabs(delta) > 50){
869 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
870 if(byte_delta < 0){
871 byte_delta= FFMAX(byte_delta, -size);
872 size += byte_delta;
873 buf -= byte_delta;
874 if(verbose > 2)
875 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
876 if(!size)
877 return;
878 ist->is_start=0;
879 }else{
880 static uint8_t *input_tmp= NULL;
881 input_tmp= av_realloc(input_tmp, byte_delta + size);
882
883 if(byte_delta > allocated_for_size - size){
884 allocated_for_size= byte_delta + (int64_t)size;
885 goto need_realloc;
886 }
887 ist->is_start=0;
888
889 memset(input_tmp, 0, byte_delta);
890 memcpy(input_tmp + byte_delta, buf, size);
891 buf= input_tmp;
892 size += byte_delta;
893 if(verbose > 2)
894 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
895 }
896 }else if(audio_sync_method>1){
897 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
898 av_assert0(ost->audio_resample);
899 if(verbose > 2)
900 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
901 // 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));
902 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
903 }
904 }
905 }else
906 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
907 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
908
909 if (ost->audio_resample) {
910 buftmp = audio_buf;
911 size_out = audio_resample(ost->resample,
912 (short *)buftmp, (short *)buf,
913 size / (dec->channels * isize));
914 size_out = size_out * enc->channels * osize;
915 } else {
916 buftmp = buf;
917 size_out = size;
918 }
919
920 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
921 const void *ibuf[6]= {buftmp};
922 void *obuf[6]= {audio_buf};
923 int istride[6]= {isize};
924 int ostride[6]= {osize};
925 int len= size_out/istride[0];
926 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
927 printf("av_audio_convert() failed\n");
928 if (exit_on_error)
929 ffmpeg_exit(1);
930 return;
931 }
932 buftmp = audio_buf;
933 size_out = len*osize;
934 }
935
936 /* now encode as many frames as possible */
937 if (enc->frame_size > 1) {
938 /* output resampled raw samples */
939 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
940 fprintf(stderr, "av_fifo_realloc2() failed\n");
941 ffmpeg_exit(1);
942 }
943 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
944
945 frame_bytes = enc->frame_size * osize * enc->channels;
946
947 while (av_fifo_size(ost->fifo) >= frame_bytes) {
948 AVPacket pkt;
949 av_init_packet(&pkt);
950
951 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
952
953 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
954
955 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
956 (short *)audio_buf);
957 if (ret < 0) {
958 fprintf(stderr, "Audio encoding failed\n");
959 ffmpeg_exit(1);
960 }
961 audio_size += ret;
962 pkt.stream_index= ost->index;
963 pkt.data= audio_out;
964 pkt.size= ret;
965 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
966 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
967 pkt.flags |= AV_PKT_FLAG_KEY;
968 write_frame(s, &pkt, enc, ost->bitstream_filters);
969
970 ost->sync_opts += enc->frame_size;
971 }
972 } else {
973 AVPacket pkt;
974 av_init_packet(&pkt);
975
976 ost->sync_opts += size_out / (osize * enc->channels);
977
978 /* output a pcm frame */
979 /* determine the size of the coded buffer */
980 size_out /= osize;
981 if (coded_bps)
982 size_out = size_out*coded_bps/8;
983
984 if(size_out > audio_out_size){
985 fprintf(stderr, "Internal error, buffer size too small\n");
986 ffmpeg_exit(1);
987 }
988
989 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
990 ret = avcodec_encode_audio(enc, audio_out, size_out,
991 (short *)buftmp);
992 if (ret < 0) {
993 fprintf(stderr, "Audio encoding failed\n");
994 ffmpeg_exit(1);
995 }
996 audio_size += ret;
997 pkt.stream_index= ost->index;
998 pkt.data= audio_out;
999 pkt.size= ret;
1000 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1001 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1002 pkt.flags |= AV_PKT_FLAG_KEY;
1003 write_frame(s, &pkt, enc, ost->bitstream_filters);
1004 }
1005 }
1006
1007 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1008 {
1009 AVCodecContext *dec;
1010 AVPicture *picture2;
1011 AVPicture picture_tmp;
1012 uint8_t *buf = 0;
1013
1014 dec = ist->st->codec;
1015
1016 /* deinterlace : must be done before any resize */
1017 if (do_deinterlace) {
1018 int size;
1019
1020 /* create temporary picture */
1021 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1022 buf = av_malloc(size);
1023 if (!buf)
1024 return;
1025
1026 picture2 = &picture_tmp;
1027 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1028
1029 if(avpicture_deinterlace(picture2, picture,
1030 dec->pix_fmt, dec->width, dec->height) < 0) {
1031 /* if error, do not deinterlace */
1032 fprintf(stderr, "Deinterlacing failed\n");
1033 av_free(buf);
1034 buf = NULL;
1035 picture2 = picture;
1036 }
1037 } else {
1038 picture2 = picture;
1039 }
1040
1041 if (picture != picture2)
1042 *picture = *picture2;
1043 *bufp = buf;
1044 }
1045
1046 /* we begin to correct av delay at this threshold */
1047 #define AV_DELAY_MAX 0.100
1048
1049 static void do_subtitle_out(AVFormatContext *s,
1050 OutputStream *ost,
1051 InputStream *ist,
1052 AVSubtitle *sub,
1053 int64_t pts)
1054 {
1055 static uint8_t *subtitle_out = NULL;
1056 int subtitle_out_max_size = 1024 * 1024;
1057 int subtitle_out_size, nb, i;
1058 AVCodecContext *enc;
1059 AVPacket pkt;
1060
1061 if (pts == AV_NOPTS_VALUE) {
1062 fprintf(stderr, "Subtitle packets must have a pts\n");
1063 if (exit_on_error)
1064 ffmpeg_exit(1);
1065 return;
1066 }
1067
1068 enc = ost->st->codec;
1069
1070 if (!subtitle_out) {
1071 subtitle_out = av_malloc(subtitle_out_max_size);
1072 }
1073
1074 /* Note: DVB subtitle need one packet to draw them and one other
1075 packet to clear them */
1076 /* XXX: signal it in the codec context ? */
1077 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1078 nb = 2;
1079 else
1080 nb = 1;
1081
1082 for(i = 0; i < nb; i++) {
1083 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1084 // start_display_time is required to be 0
1085 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1086 sub->end_display_time -= sub->start_display_time;
1087 sub->start_display_time = 0;
1088 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1089 subtitle_out_max_size, sub);
1090 if (subtitle_out_size < 0) {
1091 fprintf(stderr, "Subtitle encoding failed\n");
1092 ffmpeg_exit(1);
1093 }
1094
1095 av_init_packet(&pkt);
1096 pkt.stream_index = ost->index;
1097 pkt.data = subtitle_out;
1098 pkt.size = subtitle_out_size;
1099 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1100 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1101 /* XXX: the pts correction is handled here. Maybe handling
1102 it in the codec would be better */
1103 if (i == 0)
1104 pkt.pts += 90 * sub->start_display_time;
1105 else
1106 pkt.pts += 90 * sub->end_display_time;
1107 }
1108 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1109 }
1110 }
1111
1112 static int bit_buffer_size= 1024*256;
1113 static uint8_t *bit_buffer= NULL;
1114
1115 static void do_video_out(AVFormatContext *s,
1116 OutputStream *ost,
1117 InputStream *ist,
1118 AVFrame *in_picture,
1119 int *frame_size, float quality)
1120 {
1121 int nb_frames, i, ret, resample_changed;
1122 AVFrame *final_picture, *formatted_picture;
1123 AVCodecContext *enc, *dec;
1124 double sync_ipts;
1125
1126 enc = ost->st->codec;
1127 dec = ist->st->codec;
1128
1129 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1130
1131 /* by default, we output a single frame */
1132 nb_frames = 1;
1133
1134 *frame_size = 0;
1135
1136 if(video_sync_method){
1137 double vdelta = sync_ipts - ost->sync_opts;
1138 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1139 if (vdelta < -1.1)
1140 nb_frames = 0;
1141 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1142 if(vdelta<=-0.6){
1143 nb_frames=0;
1144 }else if(vdelta>0.6)
1145 ost->sync_opts= lrintf(sync_ipts);
1146 }else if (vdelta > 1.1)
1147 nb_frames = lrintf(vdelta);
1148 //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);
1149 if (nb_frames == 0){
1150 ++nb_frames_drop;
1151 if (verbose>2)
1152 fprintf(stderr, "*** drop!\n");
1153 }else if (nb_frames > 1) {
1154 nb_frames_dup += nb_frames - 1;
1155 if (verbose>2)
1156 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1157 }
1158 }else
1159 ost->sync_opts= lrintf(sync_ipts);
1160
1161 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1162 if (nb_frames <= 0)
1163 return;
1164
1165 formatted_picture = in_picture;
1166 final_picture = formatted_picture;
1167
1168 resample_changed = ost->resample_width != dec->width ||
1169 ost->resample_height != dec->height ||
1170 ost->resample_pix_fmt != dec->pix_fmt;
1171
1172 if (resample_changed) {
1173 av_log(NULL, AV_LOG_INFO,
1174 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1175 ist->file_index, ist->st->index,
1176 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1177 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1178 if(!ost->video_resample)
1179 ffmpeg_exit(1);
1180 }
1181
1182 #if !CONFIG_AVFILTER
1183 if (ost->video_resample) {
1184 final_picture = &ost->pict_tmp;
1185 if (resample_changed) {
1186 /* initialize a new scaler context */
1187 sws_freeContext(ost->img_resample_ctx);
1188 ost->img_resample_ctx = sws_getContext(
1189 ist->st->codec->width,
1190 ist->st->codec->height,
1191 ist->st->codec->pix_fmt,
1192 ost->st->codec->width,
1193 ost->st->codec->height,
1194 ost->st->codec->pix_fmt,
1195 ost->sws_flags, NULL, NULL, NULL);
1196 if (ost->img_resample_ctx == NULL) {
1197 fprintf(stderr, "Cannot get resampling context\n");
1198 ffmpeg_exit(1);
1199 }
1200 }
1201 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1202 0, ost->resample_height, final_picture->data, final_picture->linesize);
1203 }
1204 #endif
1205
1206 /* duplicates frame if needed */
1207 for(i=0;i<nb_frames;i++) {
1208 AVPacket pkt;
1209 av_init_packet(&pkt);
1210 pkt.stream_index= ost->index;
1211
1212 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1213 /* raw pictures are written as AVPicture structure to
1214 avoid any copies. We support temorarily the older
1215 method. */
1216 AVFrame* old_frame = enc->coded_frame;
1217 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1218 pkt.data= (uint8_t *)final_picture;
1219 pkt.size= sizeof(AVPicture);
1220 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1221 pkt.flags |= AV_PKT_FLAG_KEY;
1222
1223 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1224 enc->coded_frame = old_frame;
1225 } else {
1226 AVFrame big_picture;
1227
1228 big_picture= *final_picture;
1229 /* better than nothing: use input picture interlaced
1230 settings */
1231 big_picture.interlaced_frame = in_picture->interlaced_frame;
1232 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1233 if(top_field_first == -1)
1234 big_picture.top_field_first = in_picture->top_field_first;
1235 else
1236 big_picture.top_field_first = top_field_first;
1237 }
1238
1239 /* handles sameq here. This is not correct because it may
1240 not be a global option */
1241 big_picture.quality = quality;
1242 if(!me_threshold)
1243 big_picture.pict_type = 0;
1244 // big_picture.pts = AV_NOPTS_VALUE;
1245 big_picture.pts= ost->sync_opts;
1246 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1247 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1248 if (ost->forced_kf_index < ost->forced_kf_count &&
1249 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1250 big_picture.pict_type = AV_PICTURE_TYPE_I;
1251 ost->forced_kf_index++;
1252 }
1253 ret = avcodec_encode_video(enc,
1254 bit_buffer, bit_buffer_size,
1255 &big_picture);
1256 if (ret < 0) {
1257 fprintf(stderr, "Video encoding failed\n");
1258 ffmpeg_exit(1);
1259 }
1260
1261 if(ret>0){
1262 pkt.data= bit_buffer;
1263 pkt.size= ret;
1264 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1265 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1266 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1267 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1268 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1269
1270 if(enc->coded_frame->key_frame)
1271 pkt.flags |= AV_PKT_FLAG_KEY;
1272 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1273 *frame_size = ret;
1274 video_size += ret;
1275 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1276 // enc->frame_number-1, ret, enc->pict_type);
1277 /* if two pass, output log */
1278 if (ost->logfile && enc->stats_out) {
1279 fprintf(ost->logfile, "%s", enc->stats_out);
1280 }
1281 }
1282 }
1283 ost->sync_opts++;
1284 ost->frame_number++;
1285 }
1286 }
1287
1288 static double psnr(double d){
1289 return -10.0*log(d)/log(10.0);
1290 }
1291
1292 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1293 int frame_size)
1294 {
1295 AVCodecContext *enc;
1296 int frame_number;
1297 double ti1, bitrate, avg_bitrate;
1298
1299 /* this is executed just the first time do_video_stats is called */
1300 if (!vstats_file) {
1301 vstats_file = fopen(vstats_filename, "w");
1302 if (!vstats_file) {
1303 perror("fopen");
1304 ffmpeg_exit(1);
1305 }
1306 }
1307
1308 enc = ost->st->codec;
1309 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1310 frame_number = ost->frame_number;
1311 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1312 if (enc->flags&CODEC_FLAG_PSNR)
1313 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1314
1315 fprintf(vstats_file,"f_size= %6d ", frame_size);
1316 /* compute pts value */
1317 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1318 if (ti1 < 0.01)
1319 ti1 = 0.01;
1320
1321 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1322 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1323 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1324 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1325 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1326 }
1327 }
1328
1329 static void print_report(AVFormatContext **output_files,
1330 OutputStream **ost_table, int nb_ostreams,
1331 int is_last_report)
1332 {
1333 char buf[1024];
1334 OutputStream *ost;
1335 AVFormatContext *oc;
1336 int64_t total_size;
1337 AVCodecContext *enc;
1338 int frame_number, vid, i;
1339 double bitrate, ti1, pts;
1340 static int64_t last_time = -1;
1341 static int qp_histogram[52];
1342
1343 if (!is_last_report) {
1344 int64_t cur_time;
1345 /* display the report every 0.5 seconds */
1346 cur_time = av_gettime();
1347 if (last_time == -1) {
1348 last_time = cur_time;
1349 return;
1350 }
1351 if ((cur_time - last_time) < 500000)
1352 return;
1353 last_time = cur_time;
1354 }
1355
1356
1357 oc = output_files[0];
1358
1359 total_size = avio_size(oc->pb);
1360 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1361 total_size= avio_tell(oc->pb);
1362
1363 buf[0] = '\0';
1364 ti1 = 1e10;
1365 vid = 0;
1366 for(i=0;i<nb_ostreams;i++) {
1367 float q = -1;
1368 ost = ost_table[i];
1369 enc = ost->st->codec;
1370 if (!ost->st->stream_copy && enc->coded_frame)
1371 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1372 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1373 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1374 }
1375 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1376 float t = (av_gettime()-timer_start) / 1000000.0;
1377
1378 frame_number = ost->frame_number;
1379 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1380 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1381 if(is_last_report)
1382 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1383 if(qp_hist){
1384 int j;
1385 int qp = lrintf(q);
1386 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1387 qp_histogram[qp]++;
1388 for(j=0; j<32; j++)
1389 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1390 }
1391 if (enc->flags&CODEC_FLAG_PSNR){
1392 int j;
1393 double error, error_sum=0;
1394 double scale, scale_sum=0;
1395 char type[3]= {'Y','U','V'};
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1397 for(j=0; j<3; j++){
1398 if(is_last_report){
1399 error= enc->error[j];
1400 scale= enc->width*enc->height*255.0*255.0*frame_number;
1401 }else{
1402 error= enc->coded_frame->error[j];
1403 scale= enc->width*enc->height*255.0*255.0;
1404 }
1405 if(j) scale/=4;
1406 error_sum += error;
1407 scale_sum += scale;
1408 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1409 }
1410 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1411 }
1412 vid = 1;
1413 }
1414 /* compute min output value */
1415 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1416 if ((pts < ti1) && (pts > 0))
1417 ti1 = pts;
1418 }
1419 if (ti1 < 0.01)
1420 ti1 = 0.01;
1421
1422 if (verbose > 0 || is_last_report) {
1423 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1424
1425 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1426 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1427 (double)total_size / 1024, ti1, bitrate);
1428
1429 if (nb_frames_dup || nb_frames_drop)
1430 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1431 nb_frames_dup, nb_frames_drop);
1432
1433 if (verbose >= 0)
1434 fprintf(stderr, "%s \r", buf);
1435
1436 fflush(stderr);
1437 }
1438
1439 if (is_last_report && verbose >= 0){
1440 int64_t raw= audio_size + video_size + extra_size;
1441 fprintf(stderr, "\n");
1442 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1443 video_size/1024.0,
1444 audio_size/1024.0,
1445 extra_size/1024.0,
1446 100.0*(total_size - raw)/raw
1447 );
1448 }
1449 }
1450
1451 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1452 {
1453 int fill_char = 0x00;
1454 if (sample_fmt == AV_SAMPLE_FMT_U8)
1455 fill_char = 0x80;
1456 memset(buf, fill_char, size);
1457 }
1458
1459 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1460 static int output_packet(InputStream *ist, int ist_index,
1461 OutputStream **ost_table, int nb_ostreams,
1462 const AVPacket *pkt)
1463 {
1464 AVFormatContext *os;
1465 OutputStream *ost;
1466 int ret, i;
1467 int got_output;
1468 AVFrame picture;
1469 void *buffer_to_free = NULL;
1470 static unsigned int samples_size= 0;
1471 AVSubtitle subtitle, *subtitle_to_free;
1472 int64_t pkt_pts = AV_NOPTS_VALUE;
1473 #if CONFIG_AVFILTER
1474 int frame_available;
1475 #endif
1476 float quality;
1477
1478 AVPacket avpkt;
1479 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1480
1481 if(ist->next_pts == AV_NOPTS_VALUE)
1482 ist->next_pts= ist->pts;
1483
1484 if (pkt == NULL) {
1485 /* EOF handling */
1486 av_init_packet(&avpkt);
1487 avpkt.data = NULL;
1488 avpkt.size = 0;
1489 goto handle_eof;
1490 } else {
1491 avpkt = *pkt;
1492 }
1493
1494 if(pkt->dts != AV_NOPTS_VALUE)
1495 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1496 if(pkt->pts != AV_NOPTS_VALUE)
1497 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1498
1499 //while we have more to decode or while the decoder did output something on EOF
1500 while (avpkt.size > 0 || (!pkt && got_output)) {
1501 uint8_t *data_buf, *decoded_data_buf;
1502 int data_size, decoded_data_size;
1503 handle_eof:
1504 ist->pts= ist->next_pts;
1505
1506 if(avpkt.size && avpkt.size != pkt->size &&
1507 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1508 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1509 ist->showed_multi_packet_warning=1;
1510 }
1511
1512 /* decode the packet if needed */
1513 decoded_data_buf = NULL; /* fail safe */
1514 decoded_data_size= 0;
1515 data_buf = avpkt.data;
1516 data_size = avpkt.size;
1517 subtitle_to_free = NULL;
1518 if (ist->decoding_needed) {
1519 switch(ist->st->codec->codec_type) {
1520 case AVMEDIA_TYPE_AUDIO:{
1521 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1522 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1523 av_free(samples);
1524 samples= av_malloc(samples_size);
1525 }
1526 decoded_data_size= samples_size;
1527 /* XXX: could avoid copy if PCM 16 bits with same
1528 endianness as CPU */
1529 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1530 &avpkt);
1531 if (ret < 0)
1532 goto fail_decode;
1533 avpkt.data += ret;
1534 avpkt.size -= ret;
1535 data_size = ret;
1536 got_output = decoded_data_size > 0;
1537 /* Some bug in mpeg audio decoder gives */
1538 /* decoded_data_size < 0, it seems they are overflows */
1539 if (!got_output) {
1540 /* no audio frame */
1541 continue;
1542 }
1543 decoded_data_buf = (uint8_t *)samples;
1544 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1545 (ist->st->codec->sample_rate * ist->st->codec->channels);
1546 break;}
1547 case AVMEDIA_TYPE_VIDEO:
1548 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1549 /* XXX: allocate picture correctly */
1550 avcodec_get_frame_defaults(&picture);
1551 avpkt.pts = pkt_pts;
1552 avpkt.dts = ist->pts;
1553 pkt_pts = AV_NOPTS_VALUE;
1554
1555 ret = avcodec_decode_video2(ist->st->codec,
1556 &picture, &got_output, &avpkt);
1557 quality = same_quality ? picture.quality : 0;
1558 if (ret < 0)
1559 goto fail_decode;
1560 if (!got_output) {
1561 /* no picture yet */
1562 goto discard_packet;
1563 }
1564 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1565 if (ist->st->codec->time_base.num != 0) {
1566 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1567 ist->next_pts += ((int64_t)AV_TIME_BASE *
1568 ist->st->codec->time_base.num * ticks) /
1569 ist->st->codec->time_base.den;
1570 }
1571 avpkt.size = 0;
1572 buffer_to_free = NULL;
1573 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1574 break;
1575 case AVMEDIA_TYPE_SUBTITLE:
1576 ret = avcodec_decode_subtitle2(ist->st->codec,
1577 &subtitle, &got_output, &avpkt);
1578 if (ret < 0)
1579 goto fail_decode;
1580 if (!got_output) {
1581 goto discard_packet;
1582 }
1583 subtitle_to_free = &subtitle;
1584 avpkt.size = 0;
1585 break;
1586 default:
1587 goto fail_decode;
1588 }
1589 } else {
1590 switch(ist->st->codec->codec_type) {
1591 case AVMEDIA_TYPE_AUDIO:
1592 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1593 ist->st->codec->sample_rate;
1594 break;
1595 case AVMEDIA_TYPE_VIDEO:
1596 if (ist->st->codec->time_base.num != 0) {
1597 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1598 ist->next_pts += ((int64_t)AV_TIME_BASE *
1599 ist->st->codec->time_base.num * ticks) /
1600 ist->st->codec->time_base.den;
1601 }
1602 break;
1603 }
1604 ret = avpkt.size;
1605 avpkt.size = 0;
1606 }
1607
1608 #if CONFIG_AVFILTER
1609 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1610 for (i = 0; i < nb_ostreams; i++) {
1611 ost = ost_table[i];
1612 if (ost->input_video_filter && ost->source_index == ist_index) {
1613 AVRational sar;
1614 if (ist->st->sample_aspect_ratio.num)
1615 sar = ist->st->sample_aspect_ratio;
1616 else
1617 sar = ist->st->codec->sample_aspect_ratio;
1618 // add it to be filtered
1619 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1620 ist->pts,
1621 sar);
1622 }
1623 }
1624 }
1625 #endif
1626
1627 // preprocess audio (volume)
1628 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1629 if (audio_volume != 256) {
1630 short *volp;
1631 volp = samples;
1632 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1633 int v = ((*volp) * audio_volume + 128) >> 8;
1634 if (v < -32768) v = -32768;
1635 if (v > 32767) v = 32767;
1636 *volp++ = v;
1637 }
1638 }
1639 }
1640
1641 /* frame rate emulation */
1642 if (rate_emu) {
1643 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1644 int64_t now = av_gettime() - ist->start;
1645 if (pts > now)
1646 usleep(pts - now);
1647 }
1648 /* if output time reached then transcode raw format,
1649 encode packets and output them */
1650 if (start_time == 0 || ist->pts >= start_time)
1651 for(i=0;i<nb_ostreams;i++) {
1652 int frame_size;
1653
1654 ost = ost_table[i];
1655 if (ost->source_index == ist_index) {
1656 #if CONFIG_AVFILTER
1657 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1658 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1659 while (frame_available) {
1660 AVRational ist_pts_tb;
1661 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1662 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1663 if (ost->picref)
1664 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1665 #endif
1666 os = output_files[ost->file_index];
1667
1668 /* set the input output pts pairs */
1669 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1670
1671 if (ost->encoding_needed) {
1672 av_assert0(ist->decoding_needed);
1673 switch(ost->st->codec->codec_type) {
1674 case AVMEDIA_TYPE_AUDIO:
1675 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1676 break;
1677 case AVMEDIA_TYPE_VIDEO:
1678 #if CONFIG_AVFILTER
1679 if (ost->picref->video && !ost->frame_aspect_ratio)
1680 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1681 #endif
1682 do_video_out(os, ost, ist, &picture, &frame_size,
1683 same_quality ? quality : ost->st->codec->global_quality);
1684 if (vstats_filename && frame_size)
1685 do_video_stats(os, ost, frame_size);
1686 break;
1687 case AVMEDIA_TYPE_SUBTITLE:
1688 do_subtitle_out(os, ost, ist, &subtitle,
1689 pkt->pts);
1690 break;
1691 default:
1692 abort();
1693 }
1694 } else {
1695 AVFrame avframe; //FIXME/XXX remove this
1696 AVPacket opkt;
1697 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1698
1699 av_init_packet(&opkt);
1700
1701 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1702 #if !CONFIG_AVFILTER
1703 continue;
1704 #else
1705 goto cont;
1706 #endif
1707
1708 /* no reencoding needed : output the packet directly */
1709 /* force the input stream PTS */
1710
1711 avcodec_get_frame_defaults(&avframe);
1712 ost->st->codec->coded_frame= &avframe;
1713 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1714
1715 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1716 audio_size += data_size;
1717 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1718 video_size += data_size;
1719 ost->sync_opts++;
1720 }
1721
1722 opkt.stream_index= ost->index;
1723 if(pkt->pts != AV_NOPTS_VALUE)
1724 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1725 else
1726 opkt.pts= AV_NOPTS_VALUE;
1727
1728 if (pkt->dts == AV_NOPTS_VALUE)
1729 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1730 else
1731 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1732 opkt.dts -= ost_tb_start_time;
1733
1734 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1735 opkt.flags= pkt->flags;
1736
1737 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1738 if( ost->st->codec->codec_id != CODEC_ID_H264
1739 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1740 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1741 ) {
1742 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1743 opkt.destruct= av_destruct_packet;
1744 } else {
1745 opkt.data = data_buf;
1746 opkt.size = data_size;
1747 }
1748
1749 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1750 ost->st->codec->frame_number++;
1751 ost->frame_number++;
1752 av_free_packet(&opkt);
1753 }
1754 #if CONFIG_AVFILTER
1755 cont:
1756 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1757 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1758 if (ost->picref)
1759 avfilter_unref_buffer(ost->picref);
1760 }
1761 #endif
1762 }
1763 }
1764
1765 av_free(buffer_to_free);
1766 /* XXX: allocate the subtitles in the codec ? */
1767 if (subtitle_to_free) {
1768 avsubtitle_free(subtitle_to_free);
1769 subtitle_to_free = NULL;
1770 }
1771 }
1772 discard_packet:
1773 if (pkt == NULL) {
1774 /* EOF handling */
1775
1776 for(i=0;i<nb_ostreams;i++) {
1777 ost = ost_table[i];
1778 if (ost->source_index == ist_index) {
1779 AVCodecContext *enc= ost->st->codec;
1780 os = output_files[ost->file_index];
1781
1782 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1783 continue;
1784 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1785 continue;
1786
1787 if (ost->encoding_needed) {
1788 for(;;) {
1789 AVPacket pkt;
1790 int fifo_bytes;
1791 av_init_packet(&pkt);
1792 pkt.stream_index= ost->index;
1793
1794 switch(ost->st->codec->codec_type) {
1795 case AVMEDIA_TYPE_AUDIO:
1796 fifo_bytes = av_fifo_size(ost->fifo);
1797 ret = 0;
1798 /* encode any samples remaining in fifo */
1799 if (fifo_bytes > 0) {
1800 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1801 int fs_tmp = enc->frame_size;
1802
1803 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1804 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1805 enc->frame_size = fifo_bytes / (osize * enc->channels);
1806 } else { /* pad */
1807 int frame_bytes = enc->frame_size*osize*enc->channels;
1808 if (allocated_audio_buf_size < frame_bytes)
1809 ffmpeg_exit(1);
1810 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1811 }
1812
1813 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1814 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1815 ost->st->time_base.num, enc->sample_rate);
1816 enc->frame_size = fs_tmp;
1817 }
1818 if(ret <= 0) {
1819 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1820 }
1821 if (ret < 0) {
1822 fprintf(stderr, "Audio encoding failed\n");
1823 ffmpeg_exit(1);
1824 }
1825 audio_size += ret;
1826 pkt.flags |= AV_PKT_FLAG_KEY;
1827 break;
1828 case AVMEDIA_TYPE_VIDEO:
1829 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1830 if (ret < 0) {
1831 fprintf(stderr, "Video encoding failed\n");
1832 ffmpeg_exit(1);
1833 }
1834 video_size += ret;
1835 if(enc->coded_frame && enc->coded_frame->key_frame)
1836 pkt.flags |= AV_PKT_FLAG_KEY;
1837 if (ost->logfile && enc->stats_out) {
1838 fprintf(ost->logfile, "%s", enc->stats_out);
1839 }
1840 break;
1841 default:
1842 ret=-1;
1843 }
1844
1845 if(ret<=0)
1846 break;
1847 pkt.data= bit_buffer;
1848 pkt.size= ret;
1849 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1850 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1851 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1852 }
1853 }
1854 }
1855 }
1856 }
1857
1858 return 0;
1859 fail_decode:
1860 return -1;
1861 }
1862
1863 static void print_sdp(AVFormatContext **avc, int n)
1864 {
1865 char sdp[2048];
1866
1867 av_sdp_create(avc, n, sdp, sizeof(sdp));
1868 printf("SDP:\n%s\n", sdp);
1869 fflush(stdout);
1870 }
1871
1872 static int copy_chapters(int infile, int outfile)
1873 {
1874 AVFormatContext *is = input_files[infile].ctx;
1875 AVFormatContext *os = output_files[outfile];
1876 int i;
1877
1878 for (i = 0; i < is->nb_chapters; i++) {
1879 AVChapter *in_ch = is->chapters[i], *out_ch;
1880 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
1881 AV_TIME_BASE_Q, in_ch->time_base);
1882 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1883 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1884
1885
1886 if (in_ch->end < ts_off)
1887 continue;
1888 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1889 break;
1890
1891 out_ch = av_mallocz(sizeof(AVChapter));
1892 if (!out_ch)
1893 return AVERROR(ENOMEM);
1894
1895 out_ch->id = in_ch->id;
1896 out_ch->time_base = in_ch->time_base;
1897 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1898 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1899
1900 if (metadata_chapters_autocopy)
1901 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1902
1903 os->nb_chapters++;
1904 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1905 if (!os->chapters)
1906 return AVERROR(ENOMEM);
1907 os->chapters[os->nb_chapters - 1] = out_ch;
1908 }
1909 return 0;
1910 }
1911
1912 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1913 AVCodecContext *avctx)
1914 {
1915 char *p;
1916 int n = 1, i;
1917 int64_t t;
1918
1919 for (p = kf; *p; p++)
1920 if (*p == ',')
1921 n++;
1922 ost->forced_kf_count = n;
1923 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1924 if (!ost->forced_kf_pts) {
1925 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1926 ffmpeg_exit(1);
1927 }
1928 for (i = 0; i < n; i++) {
1929 p = i ? strchr(p, ',') + 1 : kf;
1930 t = parse_time_or_die("force_key_frames", p, 1);
1931 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1932 }
1933 }
1934
1935 /*
1936 * The following code is the main loop of the file converter
1937 */
1938 static int transcode(AVFormatContext **output_files,
1939 int nb_output_files,
1940 InputFile *input_files,
1941 int nb_input_files,
1942 StreamMap *stream_maps, int nb_stream_maps)
1943 {
1944 int ret = 0, i, j, k, n, nb_ostreams = 0;
1945 AVFormatContext *is, *os;
1946 AVCodecContext *codec, *icodec;
1947 OutputStream *ost, **ost_table = NULL;
1948 InputStream *ist;
1949 char error[1024];
1950 int want_sdp = 1;
1951 uint8_t no_packet[MAX_FILES]={0};
1952 int no_packet_count=0;
1953
1954 if (rate_emu)
1955 for (i = 0; i < nb_input_streams; i++)
1956 input_streams[i].start = av_gettime();
1957
1958 /* output stream init */
1959 nb_ostreams = 0;
1960 for(i=0;i<nb_output_files;i++) {
1961 os = output_files[i];
1962 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1963 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1964 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1965 ret = AVERROR(EINVAL);
1966 goto fail;
1967 }
1968 nb_ostreams += os->nb_streams;
1969 }
1970 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1971 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1972 ret = AVERROR(EINVAL);
1973 goto fail;
1974 }
1975
1976 /* Sanity check the mapping args -- do the input files & streams exist? */
1977 for(i=0;i<nb_stream_maps;i++) {
1978 int fi = stream_maps[i].file_index;
1979 int si = stream_maps[i].stream_index;
1980
1981 if (fi < 0 || fi > nb_input_files - 1 ||
1982 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1983 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1984 ret = AVERROR(EINVAL);
1985 goto fail;
1986 }
1987 fi = stream_maps[i].sync_file_index;
1988 si = stream_maps[i].sync_stream_index;
1989 if (fi < 0 || fi > nb_input_files - 1 ||
1990 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1991 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1992 ret = AVERROR(EINVAL);
1993 goto fail;
1994 }
1995 }
1996
1997 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1998 if (!ost_table)
1999 goto fail;
2000 n = 0;
2001 for(k=0;k<nb_output_files;k++) {
2002 os = output_files[k];
2003 for(i=0;i<os->nb_streams;i++,n++) {
2004 int found;
2005 ost = ost_table[n] = output_streams_for_file[k][i];
2006 ost->st = os->streams[i];
2007 if (nb_stream_maps > 0) {
2008 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2009 stream_maps[n].stream_index;
2010
2011 /* Sanity check that the stream types match */
2012 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2013 int i= ost->file_index;
2014 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2015 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2016 stream_maps[n].file_index, stream_maps[n].stream_index,
2017 ost->file_index, ost->index);
2018 ffmpeg_exit(1);
2019 }
2020
2021 } else {
2022 int best_nb_frames=-1;
2023 /* get corresponding input stream index : we select the first one with the right type */
2024 found = 0;
2025 for (j = 0; j < nb_input_streams; j++) {
2026 int skip=0;
2027 ist = &input_streams[j];
2028 if(opt_programid){
2029 int pi,si;
2030 AVFormatContext *f = input_files[ist->file_index].ctx;
2031 skip=1;
2032 for(pi=0; pi<f->nb_programs; pi++){
2033 AVProgram *p= f->programs[pi];
2034 if(p->id == opt_programid)
2035 for(si=0; si<p->nb_stream_indexes; si++){
2036 if(f->streams[ p->stream_index[si] ] == ist->st)
2037 skip=0;
2038 }
2039 }
2040 }
2041 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2042 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2043 if(best_nb_frames < ist->st->codec_info_nb_frames){
2044 best_nb_frames= ist->st->codec_info_nb_frames;
2045 ost->source_index = j;
2046 found = 1;
2047 }
2048 }
2049 }
2050
2051 if (!found) {
2052 if(! opt_programid) {
2053 /* try again and reuse existing stream */
2054 for (j = 0; j < nb_input_streams; j++) {
2055 ist = &input_streams[j];
2056 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2057 && ist->st->discard != AVDISCARD_ALL) {
2058 ost->source_index = j;
2059 found = 1;
2060 }
2061 }
2062 }
2063 if (!found) {
2064 int i= ost->file_index;
2065 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2066 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2067 ost->file_index, ost->index);
2068 ffmpeg_exit(1);
2069 }
2070 }
2071 }
2072 ist = &input_streams[ost->source_index];
2073 ist->discard = 0;
2074 ost->sync_ist = (nb_stream_maps > 0) ?
2075 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2076 stream_maps[n].sync_stream_index] : ist;
2077 }
2078 }
2079
2080 /* for each output stream, we compute the right encoding parameters */
2081 for(i=0;i<nb_ostreams;i++) {
2082 ost = ost_table[i];
2083 os = output_files[ost->file_index];
2084 ist = &input_streams[ost->source_index];
2085
2086 codec = ost->st->codec;
2087 icodec = ist->st->codec;
2088
2089 if (metadata_streams_autocopy)
2090 av_dict_copy(&ost->st->metadata, ist->st->metadata,
2091 AV_DICT_DONT_OVERWRITE);
2092
2093 ost->st->disposition = ist->st->disposition;
2094 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2095 codec->chroma_sample_location = icodec->chroma_sample_location;
2096
2097 if (ost->st->stream_copy) {
2098 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2099
2100 if (extra_size > INT_MAX)
2101 goto fail;
2102
2103 /* if stream_copy is selected, no need to decode or encode */
2104 codec->codec_id = icodec->codec_id;
2105 codec->codec_type = icodec->codec_type;
2106
2107 if(!codec->codec_tag){
2108 if( !os->oformat->codec_tag
2109 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2110 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2111 codec->codec_tag = icodec->codec_tag;
2112 }
2113
2114 codec->bit_rate = icodec->bit_rate;
2115 codec->rc_max_rate = icodec->rc_max_rate;
2116 codec->rc_buffer_size = icodec->rc_buffer_size;
2117 codec->extradata= av_mallocz(extra_size);
2118 if (!codec->extradata)
2119 goto fail;
2120 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2121 codec->extradata_size= icodec->extradata_size;
2122 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){
2123 codec->time_base = icodec->time_base;
2124 codec->time_base.num *= icodec->ticks_per_frame;
2125 av_reduce(&codec->time_base.num, &codec->time_base.den,
2126 codec->time_base.num, codec->time_base.den, INT_MAX);
2127 }else
2128 codec->time_base = ist->st->time_base;
2129 switch(codec->codec_type) {
2130 case AVMEDIA_TYPE_AUDIO:
2131 if(audio_volume != 256) {
2132 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2133 ffmpeg_exit(1);
2134 }
2135 codec->channel_layout = icodec->channel_layout;
2136 codec->sample_rate = icodec->sample_rate;
2137 codec->channels = icodec->channels;
2138 codec->frame_size = icodec->frame_size;
2139 codec->audio_service_type = icodec->audio_service_type;
2140 codec->block_align= icodec->block_align;
2141 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2142 codec->block_align= 0;
2143 if(codec->codec_id == CODEC_ID_AC3)
2144 codec->block_align= 0;
2145 break;
2146 case AVMEDIA_TYPE_VIDEO:
2147 codec->pix_fmt = icodec->pix_fmt;
2148 codec->width = icodec->width;
2149 codec->height = icodec->height;
2150 codec->has_b_frames = icodec->has_b_frames;
2151 if (!codec->sample_aspect_ratio.num) {
2152 codec->sample_aspect_ratio =
2153 ost->st->sample_aspect_ratio =
2154 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2155 ist->st->codec->sample_aspect_ratio.num ?
2156 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2157 }
2158 break;
2159 case AVMEDIA_TYPE_SUBTITLE:
2160 codec->width = icodec->width;
2161 codec->height = icodec->height;
2162 break;
2163 case AVMEDIA_TYPE_DATA:
2164 break;
2165 default:
2166 abort();
2167 }
2168 } else {
2169 if (!ost->enc)
2170 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2171 switch(codec->codec_type) {
2172 case AVMEDIA_TYPE_AUDIO:
2173 ost->fifo= av_fifo_alloc(1024);
2174 if(!ost->fifo)
2175 goto fail;
2176 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2177 if (!codec->sample_rate) {
2178 codec->sample_rate = icodec->sample_rate;
2179 if (icodec->lowres)
2180 codec->sample_rate >>= icodec->lowres;
2181 }
2182 choose_sample_rate(ost->st, ost->enc);
2183 codec->time_base = (AVRational){1, codec->sample_rate};
2184 if (!codec->channels)
2185 codec->channels = icodec->channels;
2186 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2187 codec->channel_layout = 0;
2188 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2189 icodec->request_channels = codec->channels;
2190 ist->decoding_needed = 1;
2191 ost->encoding_needed = 1;
2192 ost->resample_sample_fmt = icodec->sample_fmt;
2193 ost->resample_sample_rate = icodec->sample_rate;
2194 ost->resample_channels = icodec->channels;
2195 break;
2196 case AVMEDIA_TYPE_VIDEO:
2197 if (codec->pix_fmt == PIX_FMT_NONE)
2198 codec->pix_fmt = icodec->pix_fmt;
2199 choose_pixel_fmt(ost->st, ost->enc);
2200
2201 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2202 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2203 ffmpeg_exit(1);
2204 }
2205 ost->video_resample = codec->width != icodec->width ||
2206 codec->height != icodec->height ||
2207 codec->pix_fmt != icodec->pix_fmt;
2208 if (ost->video_resample) {
2209 #if !CONFIG_AVFILTER
2210 avcodec_get_frame_defaults(&ost->pict_tmp);
2211 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2212 codec->width, codec->height)) {
2213 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2214 ffmpeg_exit(1);
2215 }
2216 ost->img_resample_ctx = sws_getContext(
2217 icodec->width,
2218 icodec->height,
2219 icodec->pix_fmt,
2220 codec->width,
2221 codec->height,
2222 codec->pix_fmt,
2223 ost->sws_flags, NULL, NULL, NULL);
2224 if (ost->img_resample_ctx == NULL) {
2225 fprintf(stderr, "Cannot get resampling context\n");
2226 ffmpeg_exit(1);
2227 }
2228 #endif
2229 codec->bits_per_raw_sample= 0;
2230 }
2231 if (!codec->width || !codec->height) {
2232 codec->width = icodec->width;
2233 codec->height = icodec->height;
2234 }
2235 ost->resample_height = icodec->height;
2236 ost->resample_width = icodec->width;
2237 ost->resample_pix_fmt= icodec->pix_fmt;
2238 ost->encoding_needed = 1;
2239 ist->decoding_needed = 1;
2240
2241 if (!ost->frame_rate.num)
2242 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2243 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2244 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2245 ost->frame_rate = ost->enc->supported_framerates[idx];
2246 }
2247 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2248
2249 #if CONFIG_AVFILTER
2250 if (configure_video_filters(ist, ost)) {
2251 fprintf(stderr, "Error opening filters!\n");
2252 exit(1);
2253 }
2254 #endif
2255 break;
2256 case AVMEDIA_TYPE_SUBTITLE:
2257 ost->encoding_needed = 1;
2258 ist->decoding_needed = 1;
2259 break;
2260 default:
2261 abort();
2262 break;
2263 }
2264 /* two pass mode */
2265 if (ost->encoding_needed &&
2266 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2267 char logfilename[1024];
2268 FILE *f;
2269
2270 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2271 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2272 i);
2273 if (codec->flags & CODEC_FLAG_PASS1) {
2274 f = fopen(logfilename, "wb");
2275 if (!f) {
2276 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2277 ffmpeg_exit(1);
2278 }
2279 ost->logfile = f;
2280 } else {
2281 char *logbuffer;
2282 size_t logbuffer_size;
2283 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2284 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2285 ffmpeg_exit(1);
2286 }
2287 codec->stats_in = logbuffer;
2288 }
2289 }
2290 }
2291 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2292 int size= codec->width * codec->height;
2293 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2294 }
2295 }
2296
2297 if (!bit_buffer)
2298 bit_buffer = av_malloc(bit_buffer_size);
2299 if (!bit_buffer) {
2300 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2301 bit_buffer_size);
2302 ret = AVERROR(ENOMEM);
2303 goto fail;
2304 }
2305
2306 /* open each encoder */
2307 for(i=0;i<nb_ostreams;i++) {
2308 ost = ost_table[i];
2309 if (ost->encoding_needed) {
2310 AVCodec *codec = ost->enc;
2311 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2312 if (!codec) {
2313 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2314 ost->st->codec->codec_id, ost->file_index, ost->index);
2315 ret = AVERROR(EINVAL);
2316 goto dump_format;
2317 }
2318 if (dec->subtitle_header) {
2319 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2320 if (!ost->st->codec->subtitle_header) {
2321 ret = AVERROR(ENOMEM);
2322 goto dump_format;
2323 }
2324 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2325 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2326 }
2327 if (avcodec_open(ost->st->codec, codec) < 0) {
2328 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2329 ost->file_index, ost->index);
2330 ret = AVERROR(EINVAL);
2331 goto dump_format;
2332 }
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_open(ist->st->codec, codec) < 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 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2368 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
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 (pkt.stream_index < nb_input_files_ts_scale[file_index]
2616 && input_files_ts_scale[file_index][pkt.stream_index]){
2617 if(pkt.pts != AV_NOPTS_VALUE)
2618 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2619 if(pkt.dts != AV_NOPTS_VALUE)
2620 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2621 }
2622
2623 // 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);
2624 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2625 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2626 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2627 int64_t delta= pkt_dts - ist->next_pts;
2628 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2629 input_files[ist->file_index].ts_offset -= delta;
2630 if (verbose > 2)
2631 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2632 delta, input_files[ist->file_index].ts_offset);
2633 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2634 if(pkt.pts != AV_NOPTS_VALUE)
2635 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2636 }
2637 }
2638
2639 /* finish if recording time exhausted */
2640 if (recording_time != INT64_MAX &&
2641 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2642 ist->is_past_recording_time = 1;
2643 goto discard_packet;
2644 }
2645
2646 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2647 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2648
2649 if (verbose >= 0)
2650 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2651 ist->file_index, ist->st->index);
2652 if (exit_on_error)
2653 ffmpeg_exit(1);
2654 av_free_packet(&pkt);
2655 goto redo;
2656 }
2657
2658 discard_packet:
2659 av_free_packet(&pkt);
2660
2661 /* dump report by using the output first video and audio streams */
2662 print_report(output_files, ost_table, nb_ostreams, 0);
2663 }
2664
2665 /* at the end of stream, we must flush the decoder buffers */
2666 for (i = 0; i < nb_input_streams; i++) {
2667 ist = &input_streams[i];
2668 if (ist->decoding_needed) {
2669 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2670 }
2671 }
2672
2673 term_exit();
2674
2675 /* write the trailer if needed and close file */
2676 for(i=0;i<nb_output_files;i++) {
2677 os = output_files[i];
2678 av_write_trailer(os);
2679 }
2680
2681 /* dump report by using the first video and audio streams */
2682 print_report(output_files, ost_table, nb_ostreams, 1);
2683
2684 /* close each encoder */
2685 for(i=0;i<nb_ostreams;i++) {
2686 ost = ost_table[i];
2687 if (ost->encoding_needed) {
2688 av_freep(&ost->st->codec->stats_in);
2689 avcodec_close(ost->st->codec);
2690 }
2691 #if CONFIG_AVFILTER
2692 avfilter_graph_free(&ost->graph);
2693 #endif
2694 }
2695
2696 /* close each decoder */
2697 for (i = 0; i < nb_input_streams; i++) {
2698 ist = &input_streams[i];
2699 if (ist->decoding_needed) {
2700 avcodec_close(ist->st->codec);
2701 }
2702 }
2703
2704 /* finished ! */
2705 ret = 0;
2706
2707 fail:
2708 av_freep(&bit_buffer);
2709
2710 if (ost_table) {
2711 for(i=0;i<nb_ostreams;i++) {
2712 ost = ost_table[i];
2713 if (ost) {
2714 if (ost->st->stream_copy)
2715 av_freep(&ost->st->codec->extradata);
2716 if (ost->logfile) {
2717 fclose(ost->logfile);
2718 ost->logfile = NULL;
2719 }
2720 av_fifo_free(ost->fifo); /* works even if fifo is not
2721 initialized but set to zero */
2722 av_freep(&ost->st->codec->subtitle_header);
2723 av_free(ost->pict_tmp.data[0]);
2724 av_free(ost->forced_kf_pts);
2725 if (ost->video_resample)
2726 sws_freeContext(ost->img_resample_ctx);
2727 if (ost->resample)
2728 audio_resample_close(ost->resample);
2729 if (ost->reformat_ctx)
2730 av_audio_convert_free(ost->reformat_ctx);
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 ffmpeg_exit(1);
2768 }
2769 return 0;
2770 }
2771
2772 static int opt_bitrate(const char *opt, const char *arg)
2773 {
2774 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2775
2776 opt_default(opt, arg);
2777
2778 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2779 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2780
2781 return 0;
2782 }
2783
2784 static int opt_frame_crop(const char *opt, const char *arg)
2785 {
2786 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2787 return AVERROR(EINVAL);
2788 }
2789
2790 static int opt_frame_size(const char *opt, const char *arg)
2791 {
2792 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2793 fprintf(stderr, "Incorrect frame size\n");
2794 return AVERROR(EINVAL);
2795 }
2796 return 0;
2797 }
2798
2799 static int opt_pad(const char *opt, const char *arg) {
2800 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2801 return -1;
2802 }
2803
2804 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2805 {
2806 if (strcmp(arg, "list")) {
2807 frame_pix_fmt = av_get_pix_fmt(arg);
2808 if (frame_pix_fmt == PIX_FMT_NONE) {
2809 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2810 return AVERROR(EINVAL);
2811 }
2812 } else {
2813 show_pix_fmts();
2814 ffmpeg_exit(0);
2815 }
2816 return 0;
2817 }
2818
2819 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2820 {
2821 int x = 0, y = 0;
2822 double ar = 0;
2823 const char *p;
2824 char *end;
2825
2826 p = strchr(arg, ':');
2827 if (p) {
2828 x = strtol(arg, &end, 10);
2829 if (end == p)
2830 y = strtol(end+1, &end, 10);
2831 if (x > 0 && y > 0)
2832 ar = (double)x / (double)y;
2833 } else
2834 ar = strtod(arg, NULL);
2835
2836 if (!ar) {
2837 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2838 return AVERROR(EINVAL);
2839 }
2840 frame_aspect_ratio = ar;
2841 return 0;
2842 }
2843
2844 static int opt_metadata(const char *opt, const char *arg)
2845 {
2846 char *mid= strchr(arg, '=');
2847
2848 if(!mid){
2849 fprintf(stderr, "Missing =\n");
2850 ffmpeg_exit(1);
2851 }
2852 *mid++= 0;
2853
2854 av_dict_set(&metadata, arg, mid, 0);
2855
2856 return 0;
2857 }
2858
2859 static int opt_qscale(const char *opt, const char *arg)
2860 {
2861 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2862 if (video_qscale == 0) {
2863 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2864 return AVERROR(EINVAL);
2865 }
2866 return 0;
2867 }
2868
2869 static int opt_top_field_first(const char *opt, const char *arg)
2870 {
2871 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2872 return 0;
2873 }
2874
2875 static int opt_thread_count(const char *opt, const char *arg)
2876 {
2877 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2878 #if !HAVE_THREADS
2879 if (verbose >= 0)
2880 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2881 #endif
2882 return 0;
2883 }
2884
2885 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2886 {
2887 if (strcmp(arg, "list")) {
2888 audio_sample_fmt = av_get_sample_fmt(arg);
2889 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2890 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2891 return AVERROR(EINVAL);
2892 }
2893 } else {
2894 int i;
2895 char fmt_str[128];
2896 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2897 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2898 ffmpeg_exit(0);
2899 }
2900 return 0;
2901 }
2902
2903 static int opt_audio_rate(const char *opt, const char *arg)
2904 {
2905 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2906 return 0;
2907 }
2908
2909 static int opt_audio_channels(const char *opt, const char *arg)
2910 {
2911 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2912 return 0;
2913 }
2914
2915 static int opt_video_channel(const char *opt, const char *arg)
2916 {
2917 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2918 opt_default("channel", arg);
2919 return 0;
2920 }
2921
2922 static int opt_video_standard(const char *opt, const char *arg)
2923 {
2924 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2925 opt_default("standard", arg);
2926 return 0;
2927 }
2928
2929 static int opt_codec(int *pstream_copy, char **pcodec_name,
2930 int codec_type, const char *arg)
2931 {
2932 av_freep(pcodec_name);
2933 if (!strcmp(arg, "copy")) {
2934 *pstream_copy = 1;
2935 } else {
2936 *pcodec_name = av_strdup(arg);
2937 }
2938 return 0;
2939 }
2940
2941 static int opt_audio_codec(const char *opt, const char *arg)
2942 {
2943 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2944 }
2945
2946 static int opt_video_codec(const char *opt, const char *arg)
2947 {
2948 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2949 }
2950
2951 static int opt_subtitle_codec(const char *opt, const char *arg)
2952 {
2953 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2954 }
2955
2956 static int opt_data_codec(const char *opt, const char *arg)
2957 {
2958 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2959 }
2960
2961 static int opt_codec_tag(const char *opt, const char *arg)
2962 {
2963 char *tail;
2964 uint32_t *codec_tag;
2965
2966 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2967 !strcmp(opt, "vtag") ? &video_codec_tag :
2968 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2969 if (!codec_tag)
2970 return -1;
2971
2972 *codec_tag = strtol(arg, &tail, 0);
2973 if (!tail || *tail)
2974 *codec_tag = AV_RL32(arg);
2975
2976 return 0;
2977 }
2978
2979 static int opt_map(const char *opt, const char *arg)
2980 {
2981 StreamMap *m;
2982 char *p;
2983
2984 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2985 m = &stream_maps[nb_stream_maps-1];
2986
2987 m->file_index = strtol(arg, &p, 0);
2988 if (*p)
2989 p++;
2990
2991 m->stream_index = strtol(p, &p, 0);
2992 if (*p) {
2993 p++;
2994 m->sync_file_index = strtol(p, &p, 0);
2995 if (*p)
2996 p++;
2997 m->sync_stream_index = strtol(p, &p, 0);
2998 } else {
2999 m->sync_file_index = m->file_index;
3000 m->sync_stream_index = m->stream_index;
3001 }
3002 return 0;
3003 }
3004
3005 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3006 {
3007 *endptr = arg;
3008 if (*arg == ',') {
3009 *type = *(++arg);
3010 switch (*arg) {
3011 case 'g':
3012 break;
3013 case 's':
3014 case 'c':
3015 case 'p':
3016 *index = strtol(++arg, endptr, 0);
3017 break;
3018 default:
3019 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3020 ffmpeg_exit(1);
3021 }
3022 } else
3023 *type = 'g';
3024 }
3025
3026 static int opt_map_metadata(const char *opt, const char *arg)
3027 {
3028 MetadataMap *m, *m1;
3029 char *p;
3030
3031 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3032 &nb_meta_data_maps, nb_meta_data_maps + 1);
3033
3034 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3035 m->file = strtol(arg, &p, 0);
3036 parse_meta_type(p, &m->type, &m->index, &p);
3037 if (*p)
3038 p++;
3039
3040 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3041 m1->file = strtol(p, &p, 0);
3042 parse_meta_type(p, &m1->type, &m1->index, &p);
3043
3044 if (m->type == 'g' || m1->type == 'g')
3045 metadata_global_autocopy = 0;
3046 if (m->type == 's' || m1->type == 's')
3047 metadata_streams_autocopy = 0;
3048 if (m->type == 'c' || m1->type == 'c')
3049 metadata_chapters_autocopy = 0;
3050
3051 return 0;
3052 }
3053
3054 static int opt_map_meta_data(const char *opt, const char *arg)
3055 {
3056 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3057 "Use -map_metadata instead.\n");
3058 return opt_map_metadata(opt, arg);
3059 }
3060
3061 static int opt_map_chapters(const char *opt, const char *arg)
3062 {
3063 ChapterMap *c;
3064 char *p;
3065
3066 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3067 nb_chapter_maps + 1);
3068 c = &chapter_maps[nb_chapter_maps - 1];
3069 c->out_file = strtol(arg, &p, 0);
3070 if (*p)
3071 p++;
3072
3073 c->in_file = strtol(p, &p, 0);
3074 return 0;
3075 }
3076
3077 static int opt_input_ts_scale(const char *opt, const char *arg)
3078 {
3079 unsigned int stream;
3080 double scale;
3081 char *p;
3082
3083 stream = strtol(arg, &p, 0);
3084 if (*p)
3085 p++;
3086 scale= strtod(p, &p);
3087
3088 if(stream >= MAX_STREAMS)
3089 ffmpeg_exit(1);
3090
3091 input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3092 input_files_ts_scale[nb_input_files][stream]= scale;
3093 return 0;
3094 }
3095
3096 static int opt_recording_time(const char *opt, const char *arg)
3097 {
3098 recording_time = parse_time_or_die(opt, arg, 1);
3099 return 0;
3100 }
3101
3102 static int opt_start_time(const char *opt, const char *arg)
3103 {
3104 start_time = parse_time_or_die(opt, arg, 1);
3105 return 0;
3106 }
3107
3108 static int opt_recording_timestamp(const char *opt, const char *arg)
3109 {
3110 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3111 return 0;
3112 }
3113
3114 static int opt_input_ts_offset(const char *opt, const char *arg)
3115 {
3116 input_ts_offset = parse_time_or_die(opt, arg, 1);
3117 return 0;
3118 }
3119
3120 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3121 {
3122 const char *codec_string = encoder ? "encoder" : "decoder";
3123 AVCodec *codec;
3124
3125 if(!name)
3126 return CODEC_ID_NONE;
3127 codec = encoder ?
3128 avcodec_find_encoder_by_name(name) :
3129 avcodec_find_decoder_by_name(name);
3130 if(!codec) {
3131 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3132 ffmpeg_exit(1);
3133 }
3134 if(codec->type != type) {
3135 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3136 ffmpeg_exit(1);
3137 }
3138 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3139 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3140 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3141 "results.\nAdd '-strict experimental' if you want to use it.\n",
3142 codec_string, codec->name);
3143 codec = encoder ?
3144 avcodec_find_encoder(codec->id) :
3145 avcodec_find_decoder(codec->id);
3146 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3147 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3148 codec_string, codec->name);
3149 ffmpeg_exit(1);
3150 }
3151 return codec->id;
3152 }
3153
3154 static int opt_input_file(const char *opt, const char *filename)
3155 {
3156 AVFormatContext *ic;
3157 AVInputFormat *file_iformat = NULL;
3158 int err, i, ret, rfps, rfps_base;
3159 int64_t timestamp;
3160 uint8_t buf[128];
3161
3162 if (last_asked_format) {
3163 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3164 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3165 ffmpeg_exit(1);
3166 }