ffmpeg: don't abuse a global for passing frame size from input to output
[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/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavformat/os_support.h"
47
48 #if CONFIG_AVFILTER
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #include <time.h>
71
72 #include "cmdutils.h"
73
74 #include "libavutil/avassert.h"
75
76 const char program_name[] = "ffmpeg";
77 const int program_birth_year = 2000;
78
79 /* select an input stream for an output stream */
80 typedef struct AVStreamMap {
81 int file_index;
82 int stream_index;
83 int sync_file_index;
84 int sync_stream_index;
85 } AVStreamMap;
86
87 /**
88 * select an input file for an output file
89 */
90 typedef struct AVMetaDataMap {
91 int file; //< file index
92 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
93 int index; //< stream/chapter/program number
94 } AVMetaDataMap;
95
96 typedef struct AVChapterMap {
97 int in_file;
98 int out_file;
99 } AVChapterMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
105
106 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
107
108 static const char *last_asked_format = NULL;
109 static int64_t input_files_ts_offset[MAX_FILES];
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static AVCodec **input_codecs = NULL;
112 static int nb_input_codecs = 0;
113 static int nb_input_files_ts_scale[MAX_FILES] = {0};
114
115 static AVFormatContext *output_files[MAX_FILES];
116 static int nb_output_files = 0;
117
118 static AVStreamMap *stream_maps = NULL;
119 static int nb_stream_maps;
120
121 /* first item specifies output metadata, second is input */
122 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
123 static int nb_meta_data_maps;
124 static int metadata_global_autocopy = 1;
125 static int metadata_streams_autocopy = 1;
126 static int metadata_chapters_autocopy = 1;
127
128 static AVChapterMap *chapter_maps = NULL;
129 static int nb_chapter_maps;
130
131 /* indexed by output file stream index */
132 static int *streamid_map = NULL;
133 static int nb_streamid_map = 0;
134
135 static int frame_width = 0;
136 static int frame_height = 0;
137 static float frame_aspect_ratio = 0;
138 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
139 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
140 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
141 static AVRational frame_rate;
142 static float video_qscale = 0;
143 static uint16_t *intra_matrix = NULL;
144 static uint16_t *inter_matrix = NULL;
145 static const char *video_rc_override_string=NULL;
146 static int video_disable = 0;
147 static int video_discard = 0;
148 static char *video_codec_name = NULL;
149 static unsigned int video_codec_tag = 0;
150 static char *video_language = NULL;
151 static int same_quality = 0;
152 static int do_deinterlace = 0;
153 static int top_field_first = -1;
154 static int me_threshold = 0;
155 static int intra_dc_precision = 8;
156 static int loop_input = 0;
157 static int loop_output = AVFMT_NOOUTPUTLOOP;
158 static int qp_hist = 0;
159 #if CONFIG_AVFILTER
160 static char *vfilters = NULL;
161 #endif
162
163 static int intra_only = 0;
164 static int audio_sample_rate = 0;
165 static int64_t channel_layout = 0;
166 #define QSCALE_NONE -99999
167 static float audio_qscale = QSCALE_NONE;
168 static int audio_disable = 0;
169 static int audio_channels = 0;
170 static char *audio_codec_name = NULL;
171 static unsigned int audio_codec_tag = 0;
172 static char *audio_language = NULL;
173
174 static int subtitle_disable = 0;
175 static char *subtitle_codec_name = NULL;
176 static char *subtitle_language = NULL;
177 static unsigned int subtitle_codec_tag = 0;
178
179 static int data_disable = 0;
180 static char *data_codec_name = NULL;
181 static unsigned int data_codec_tag = 0;
182
183 static float mux_preload= 0.5;
184 static float mux_max_delay= 0.7;
185
186 static int64_t recording_time = INT64_MAX;
187 static int64_t start_time = 0;
188 static int64_t recording_timestamp = 0;
189 static int64_t input_ts_offset = 0;
190 static int file_overwrite = 0;
191 static AVDictionary *metadata;
192 static int do_benchmark = 0;
193 static int do_hex_dump = 0;
194 static int do_pkt_dump = 0;
195 static int do_psnr = 0;
196 static int do_pass = 0;
197 static char *pass_logfilename_prefix = NULL;
198 static int audio_stream_copy = 0;
199 static int video_stream_copy = 0;
200 static int subtitle_stream_copy = 0;
201 static int data_stream_copy = 0;
202 static int video_sync_method= -1;
203 static int audio_sync_method= 0;
204 static float audio_drift_threshold= 0.1;
205 static int copy_ts= 0;
206 static int copy_tb;
207 static int opt_shortest = 0;
208 static char *vstats_filename;
209 static FILE *vstats_file;
210 static int opt_programid = 0;
211 static int copy_initial_nonkeyframes = 0;
212
213 static int rate_emu = 0;
214
215 static int video_channel = 0;
216 static char *video_standard;
217
218 static int audio_volume = 256;
219
220 static int exit_on_error = 0;
221 static int using_stdin = 0;
222 static int verbose = 1;
223 static int thread_count= 1;
224 static int64_t video_size = 0;
225 static int64_t audio_size = 0;
226 static int64_t extra_size = 0;
227 static int nb_frames_dup = 0;
228 static int nb_frames_drop = 0;
229 static int input_sync;
230 static uint64_t limit_filesize = 0;
231 static int force_fps = 0;
232 static char *forced_key_frames = NULL;
233
234 static float dts_delta_threshold = 10;
235
236 static int64_t timer_start;
237
238 static uint8_t *audio_buf;
239 static uint8_t *audio_out;
240 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
241
242 static short *samples;
243
244 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
245 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
246 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
247
248 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
249
250 struct AVInputStream;
251
252 typedef struct AVOutputStream {
253 int file_index; /* file index */
254 int index; /* stream index in the output file */
255 int source_index; /* AVInputStream index */
256 AVStream *st; /* stream in the output file */
257 int encoding_needed; /* true if encoding needed for this stream */
258 int frame_number;
259 /* input pts and corresponding output pts
260 for A/V sync */
261 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
262 struct AVInputStream *sync_ist; /* input stream to sync against */
263 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
264 AVBitStreamFilterContext *bitstream_filters;
265 AVCodec *enc;
266
267 /* video only */
268 int video_resample;
269 AVFrame pict_tmp; /* temporary image for resampling */
270 struct SwsContext *img_resample_ctx; /* for image resampling */
271 int resample_height;
272 int resample_width;
273 int resample_pix_fmt;
274 AVRational frame_rate;
275
276 float frame_aspect_ratio;
277
278 /* forced key frames */
279 int64_t *forced_kf_pts;
280 int forced_kf_count;
281 int forced_kf_index;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 int resample_sample_fmt;
287 int resample_channels;
288 int resample_sample_rate;
289 int reformat_pair;
290 AVAudioConvert *reformat_ctx;
291 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
292 FILE *logfile;
293
294 #if CONFIG_AVFILTER
295 AVFilterContext *output_video_filter;
296 AVFilterContext *input_video_filter;
297 AVFilterBufferRef *picref;
298 char *avfilter;
299 AVFilterGraph *graph;
300 #endif
301
302 int sws_flags;
303 } AVOutputStream;
304
305 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
306 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
307
308 typedef struct AVInputStream {
309 int file_index;
310 AVStream *st;
311 int discard; /* true if stream data should be discarded */
312 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
313 int64_t sample_index; /* current sample */
314
315 int64_t start; /* time when read started */
316 int64_t next_pts; /* synthetic pts for cases where pkt.pts
317 is not defined */
318 int64_t pts; /* current pts */
319 PtsCorrectionContext pts_ctx;
320 int is_start; /* is 1 at the start and after a discontinuity */
321 int showed_multi_packet_warning;
322 int is_past_recording_time;
323 #if CONFIG_AVFILTER
324 AVFrame *filter_frame;
325 int has_filter_frame;
326 #endif
327 } AVInputStream;
328
329 typedef struct AVInputFile {
330 AVFormatContext *ctx;
331 int eof_reached; /* true if eof reached */
332 int ist_index; /* index of first stream in ist_table */
333 int buffer_size; /* current total buffer size */
334 } AVInputFile;
335
336 static AVInputStream *input_streams = NULL;
337 static int nb_input_streams = 0;
338 static AVInputFile *input_files = NULL;
339 static int nb_input_files = 0;
340
341 #if CONFIG_AVFILTER
342
343 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
344 {
345 AVFilterContext *last_filter, *filter;
346 /** filter graph containing all filters including input & output */
347 AVCodecContext *codec = ost->st->codec;
348 AVCodecContext *icodec = ist->st->codec;
349 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
350 AVRational sample_aspect_ratio;
351 char args[255];
352 int ret;
353
354 ost->graph = avfilter_graph_alloc();
355
356 if (ist->st->sample_aspect_ratio.num){
357 sample_aspect_ratio = ist->st->sample_aspect_ratio;
358 }else
359 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
360
361 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
362 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
363 sample_aspect_ratio.num, sample_aspect_ratio.den);
364
365 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
366 "src", args, NULL, ost->graph);
367 if (ret < 0)
368 return ret;
369 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
370 "out", NULL, &ffsink_ctx, ost->graph);
371 if (ret < 0)
372 return ret;
373 last_filter = ost->input_video_filter;
374
375 if (codec->width != icodec->width || codec->height != icodec->height) {
376 snprintf(args, 255, "%d:%d:flags=0x%X",
377 codec->width,
378 codec->height,
379 ost->sws_flags);
380 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381 NULL, args, NULL, ost->graph)) < 0)
382 return ret;
383 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
384 return ret;
385 last_filter = filter;
386 }
387
388 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
389 ost->graph->scale_sws_opts = av_strdup(args);
390
391 if (ost->avfilter) {
392 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
393 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
394
395 outputs->name = av_strdup("in");
396 outputs->filter_ctx = last_filter;
397 outputs->pad_idx = 0;
398 outputs->next = NULL;
399
400 inputs->name = av_strdup("out");
401 inputs->filter_ctx = ost->output_video_filter;
402 inputs->pad_idx = 0;
403 inputs->next = NULL;
404
405 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
406 return ret;
407 av_freep(&ost->avfilter);
408 } else {
409 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
410 return ret;
411 }
412
413 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
414 return ret;
415
416 codec->width = ost->output_video_filter->inputs[0]->w;
417 codec->height = ost->output_video_filter->inputs[0]->h;
418 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
419 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
420 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
421 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
422
423 return 0;
424 }
425 #endif /* CONFIG_AVFILTER */
426
427 static void term_exit(void)
428 {
429 av_log(NULL, AV_LOG_QUIET, "");
430 }
431
432 static volatile int received_sigterm = 0;
433 static volatile int received_nb_signals = 0;
434
435 static void
436 sigterm_handler(int sig)
437 {
438 received_sigterm = sig;
439 received_nb_signals++;
440 term_exit();
441 }
442
443 static void term_init(void)
444 {
445 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
446 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
447 #ifdef SIGXCPU
448 signal(SIGXCPU, sigterm_handler);
449 #endif
450 }
451
452 static int decode_interrupt_cb(void)
453 {
454 return received_nb_signals > 1;
455 }
456
457 static int ffmpeg_exit(int ret)
458 {
459 int i;
460
461 /* close files */
462 for(i=0;i<nb_output_files;i++) {
463 AVFormatContext *s = output_files[i];
464 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
465 avio_close(s->pb);
466 avformat_free_context(s);
467 av_free(output_streams_for_file[i]);
468 }
469 for(i=0;i<nb_input_files;i++) {
470 av_close_input_file(input_files[i].ctx);
471 av_free(input_files_ts_scale[i]);
472 }
473
474 av_free(intra_matrix);
475 av_free(inter_matrix);
476
477 if (vstats_file)
478 fclose(vstats_file);
479 av_free(vstats_filename);
480
481 av_free(streamid_map);
482 av_free(input_codecs);
483 av_free(stream_maps);
484 av_free(meta_data_maps);
485
486 av_freep(&input_streams);
487 av_freep(&input_files);
488
489 av_free(video_codec_name);
490 av_free(audio_codec_name);
491 av_free(subtitle_codec_name);
492 av_free(data_codec_name);
493
494 av_free(video_standard);
495
496 uninit_opts();
497 av_free(audio_buf);
498 av_free(audio_out);
499 allocated_audio_buf_size= allocated_audio_out_size= 0;
500 av_free(samples);
501
502 #if CONFIG_AVFILTER
503 avfilter_uninit();
504 #endif
505
506 if (received_sigterm) {
507 fprintf(stderr,
508 "Received signal %d: terminating.\n",
509 (int) received_sigterm);
510 exit (255);
511 }
512
513 exit(ret); /* not all OS-es handle main() return value */
514 return ret;
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 AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
644 {
645 int idx = oc->nb_streams - 1;
646 AVOutputStream *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(AVOutputStream));
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;
670 int nopts = 0;
671
672 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, 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 AVOutputStream *ost)
724 {
725 const AVInputStream *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 AVOutputStream *ost,
765 AVInputStream *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_bits_per_sample_fmt(enc->sample_fmt)/8;
776 int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
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(AVInputStream *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 AVOutputStream *ost,
1051 AVInputStream *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 AVOutputStream *ost,
1117 AVInputStream *ist,
1118 AVFrame *in_picture,
1119 int *frame_size)
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 = same_quality ? ist->st->quality : ost->st->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, AVOutputStream *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 AVOutputStream **ost_table, int nb_ostreams,
1331 int is_last_report)
1332 {
1333 char buf[1024];
1334 AVOutputStream *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(AVInputStream *ist, int ist_index,
1461 AVOutputStream **ost_table, int nb_ostreams,
1462 const AVPacket *pkt)
1463 {
1464 AVFormatContext *os;
1465 AVOutputStream *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
1477 AVPacket avpkt;
1478 int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1479
1480 if(ist->next_pts == AV_NOPTS_VALUE)
1481 ist->next_pts= ist->pts;
1482
1483 if (pkt == NULL) {
1484 /* EOF handling */
1485 av_init_packet(&avpkt);
1486 avpkt.data = NULL;
1487 avpkt.size = 0;
1488 goto handle_eof;
1489 } else {
1490 avpkt = *pkt;
1491 }
1492
1493 if(pkt->dts != AV_NOPTS_VALUE)
1494 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1495 if(pkt->pts != AV_NOPTS_VALUE)
1496 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1497
1498 //while we have more to decode or while the decoder did output something on EOF
1499 while (avpkt.size > 0 || (!pkt && got_output)) {
1500 uint8_t *data_buf, *decoded_data_buf;
1501 int data_size, decoded_data_size;
1502 handle_eof:
1503 ist->pts= ist->next_pts;
1504
1505 if(avpkt.size && avpkt.size != pkt->size &&
1506 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1507 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1508 ist->showed_multi_packet_warning=1;
1509 }
1510
1511 /* decode the packet if needed */
1512 decoded_data_buf = NULL; /* fail safe */
1513 decoded_data_size= 0;
1514 data_buf = avpkt.data;
1515 data_size = avpkt.size;
1516 subtitle_to_free = NULL;
1517 if (ist->decoding_needed) {
1518 switch(ist->st->codec->codec_type) {
1519 case AVMEDIA_TYPE_AUDIO:{
1520 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1521 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1522 av_free(samples);
1523 samples= av_malloc(samples_size);
1524 }
1525 decoded_data_size= samples_size;
1526 /* XXX: could avoid copy if PCM 16 bits with same
1527 endianness as CPU */
1528 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1529 &avpkt);
1530 if (ret < 0)
1531 goto fail_decode;
1532 avpkt.data += ret;
1533 avpkt.size -= ret;
1534 data_size = ret;
1535 got_output = decoded_data_size > 0;
1536 /* Some bug in mpeg audio decoder gives */
1537 /* decoded_data_size < 0, it seems they are overflows */
1538 if (!got_output) {
1539 /* no audio frame */
1540 continue;
1541 }
1542 decoded_data_buf = (uint8_t *)samples;
1543 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1544 (ist->st->codec->sample_rate * ist->st->codec->channels);
1545 break;}
1546 case AVMEDIA_TYPE_VIDEO:
1547 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1548 /* XXX: allocate picture correctly */
1549 avcodec_get_frame_defaults(&picture);
1550 avpkt.pts = pkt_pts;
1551 avpkt.dts = ist->pts;
1552 pkt_pts = AV_NOPTS_VALUE;
1553
1554 ret = avcodec_decode_video2(ist->st->codec,
1555 &picture, &got_output, &avpkt);
1556 ist->st->quality= picture.quality;
1557 if (ret < 0)
1558 goto fail_decode;
1559 if (!got_output) {
1560 /* no picture yet */
1561 goto discard_packet;
1562 }
1563 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1564 if (ist->st->codec->time_base.num != 0) {
1565 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1566 ist->next_pts += ((int64_t)AV_TIME_BASE *
1567 ist->st->codec->time_base.num * ticks) /
1568 ist->st->codec->time_base.den;
1569 }
1570 avpkt.size = 0;
1571 buffer_to_free = NULL;
1572 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1573 break;
1574 case AVMEDIA_TYPE_SUBTITLE:
1575 ret = avcodec_decode_subtitle2(ist->st->codec,
1576 &subtitle, &got_output, &avpkt);
1577 if (ret < 0)
1578 goto fail_decode;
1579 if (!got_output) {
1580 goto discard_packet;
1581 }
1582 subtitle_to_free = &subtitle;
1583 avpkt.size = 0;
1584 break;
1585 default:
1586 goto fail_decode;
1587 }
1588 } else {
1589 switch(ist->st->codec->codec_type) {
1590 case AVMEDIA_TYPE_AUDIO:
1591 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1592 ist->st->codec->sample_rate;
1593 break;
1594 case AVMEDIA_TYPE_VIDEO:
1595 if (ist->st->codec->time_base.num != 0) {
1596 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1597 ist->next_pts += ((int64_t)AV_TIME_BASE *
1598 ist->st->codec->time_base.num * ticks) /
1599 ist->st->codec->time_base.den;
1600 }
1601 break;
1602 }
1603 ret = avpkt.size;
1604 avpkt.size = 0;
1605 }
1606
1607 #if CONFIG_AVFILTER
1608 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1609 for (i = 0; i < nb_ostreams; i++) {
1610 ost = ost_table[i];
1611 if (ost->input_video_filter && ost->source_index == ist_index) {
1612 AVRational sar;
1613 if (ist->st->sample_aspect_ratio.num)
1614 sar = ist->st->sample_aspect_ratio;
1615 else
1616 sar = ist->st->codec->sample_aspect_ratio;
1617 // add it to be filtered
1618 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1619 ist->pts,
1620 sar);
1621 }
1622 }
1623 }
1624 #endif
1625
1626 // preprocess audio (volume)
1627 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1628 if (audio_volume != 256) {
1629 short *volp;
1630 volp = samples;
1631 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1632 int v = ((*volp) * audio_volume + 128) >> 8;
1633 if (v < -32768) v = -32768;
1634 if (v > 32767) v = 32767;
1635 *volp++ = v;
1636 }
1637 }
1638 }
1639
1640 /* frame rate emulation */
1641 if (rate_emu) {
1642 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1643 int64_t now = av_gettime() - ist->start;
1644 if (pts > now)
1645 usleep(pts - now);
1646 }
1647 /* if output time reached then transcode raw format,
1648 encode packets and output them */
1649 if (start_time == 0 || ist->pts >= start_time)
1650 for(i=0;i<nb_ostreams;i++) {
1651 int frame_size;
1652
1653 ost = ost_table[i];
1654 if (ost->source_index == ist_index) {
1655 #if CONFIG_AVFILTER
1656 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1657 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1658 while (frame_available) {
1659 AVRational ist_pts_tb;
1660 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1661 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1662 if (ost->picref)
1663 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1664 #endif
1665 os = output_files[ost->file_index];
1666
1667 /* set the input output pts pairs */
1668 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1669
1670 if (ost->encoding_needed) {
1671 av_assert0(ist->decoding_needed);
1672 switch(ost->st->codec->codec_type) {
1673 case AVMEDIA_TYPE_AUDIO:
1674 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1675 break;
1676 case AVMEDIA_TYPE_VIDEO:
1677 #if CONFIG_AVFILTER
1678 if (ost->picref->video && !ost->frame_aspect_ratio)
1679 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1680 #endif
1681 do_video_out(os, ost, ist, &picture, &frame_size);
1682 if (vstats_filename && frame_size)
1683 do_video_stats(os, ost, frame_size);
1684 break;
1685 case AVMEDIA_TYPE_SUBTITLE:
1686 do_subtitle_out(os, ost, ist, &subtitle,
1687 pkt->pts);
1688 break;
1689 default:
1690 abort();
1691 }
1692 } else {
1693 AVFrame avframe; //FIXME/XXX remove this
1694 AVPacket opkt;
1695 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1696
1697 av_init_packet(&opkt);
1698
1699 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1700 #if !CONFIG_AVFILTER
1701 continue;
1702 #else
1703 goto cont;
1704 #endif
1705
1706 /* no reencoding needed : output the packet directly */
1707 /* force the input stream PTS */
1708
1709 avcodec_get_frame_defaults(&avframe);
1710 ost->st->codec->coded_frame= &avframe;
1711 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1712
1713 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1714 audio_size += data_size;
1715 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1716 video_size += data_size;
1717 ost->sync_opts++;
1718 }
1719
1720 opkt.stream_index= ost->index;
1721 if(pkt->pts != AV_NOPTS_VALUE)
1722 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1723 else
1724 opkt.pts= AV_NOPTS_VALUE;
1725
1726 if (pkt->dts == AV_NOPTS_VALUE)
1727 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1728 else
1729 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1730 opkt.dts -= ost_tb_start_time;
1731
1732 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1733 opkt.flags= pkt->flags;
1734
1735 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1736 if( ost->st->codec->codec_id != CODEC_ID_H264
1737 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1738 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1739 ) {
1740 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1741 opkt.destruct= av_destruct_packet;
1742 } else {
1743 opkt.data = data_buf;
1744 opkt.size = data_size;
1745 }
1746
1747 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1748 ost->st->codec->frame_number++;
1749 ost->frame_number++;
1750 av_free_packet(&opkt);
1751 }
1752 #if CONFIG_AVFILTER
1753 cont:
1754 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1755 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1756 if (ost->picref)
1757 avfilter_unref_buffer(ost->picref);
1758 }
1759 #endif
1760 }
1761 }
1762
1763 av_free(buffer_to_free);
1764 /* XXX: allocate the subtitles in the codec ? */
1765 if (subtitle_to_free) {
1766 avsubtitle_free(subtitle_to_free);
1767 subtitle_to_free = NULL;
1768 }
1769 }
1770 discard_packet:
1771 if (pkt == NULL) {
1772 /* EOF handling */
1773
1774 for(i=0;i<nb_ostreams;i++) {
1775 ost = ost_table[i];
1776 if (ost->source_index == ist_index) {
1777 AVCodecContext *enc= ost->st->codec;
1778 os = output_files[ost->file_index];
1779
1780 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1781 continue;
1782 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1783 continue;
1784
1785 if (ost->encoding_needed) {
1786 for(;;) {
1787 AVPacket pkt;
1788 int fifo_bytes;
1789 av_init_packet(&pkt);
1790 pkt.stream_index= ost->index;
1791
1792 switch(ost->st->codec->codec_type) {
1793 case AVMEDIA_TYPE_AUDIO:
1794 fifo_bytes = av_fifo_size(ost->fifo);
1795 ret = 0;
1796 /* encode any samples remaining in fifo */
1797 if (fifo_bytes > 0) {
1798 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1799 int fs_tmp = enc->frame_size;
1800
1801 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1802 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1803 enc->frame_size = fifo_bytes / (osize * enc->channels);
1804 } else { /* pad */
1805 int frame_bytes = enc->frame_size*osize*enc->channels;
1806 if (allocated_audio_buf_size < frame_bytes)
1807 ffmpeg_exit(1);
1808 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1809 }
1810
1811 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1812 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1813 ost->st->time_base.num, enc->sample_rate);
1814 enc->frame_size = fs_tmp;
1815 }
1816 if(ret <= 0) {
1817 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1818 }
1819 if (ret < 0) {
1820 fprintf(stderr, "Audio encoding failed\n");
1821 ffmpeg_exit(1);
1822 }
1823 audio_size += ret;
1824 pkt.flags |= AV_PKT_FLAG_KEY;
1825 break;
1826 case AVMEDIA_TYPE_VIDEO:
1827 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1828 if (ret < 0) {
1829 fprintf(stderr, "Video encoding failed\n");
1830 ffmpeg_exit(1);
1831 }
1832 video_size += ret;
1833 if(enc->coded_frame && enc->coded_frame->key_frame)
1834 pkt.flags |= AV_PKT_FLAG_KEY;
1835 if (ost->logfile && enc->stats_out) {
1836 fprintf(ost->logfile, "%s", enc->stats_out);
1837 }
1838 break;
1839 default:
1840 ret=-1;
1841 }
1842
1843 if(ret<=0)
1844 break;
1845 pkt.data= bit_buffer;
1846 pkt.size= ret;
1847 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1848 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1849 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1850 }
1851 }
1852 }
1853 }
1854 }
1855
1856 return 0;
1857 fail_decode:
1858 return -1;
1859 }
1860
1861 static void print_sdp(AVFormatContext **avc, int n)
1862 {
1863 char sdp[2048];
1864
1865 av_sdp_create(avc, n, sdp, sizeof(sdp));
1866 printf("SDP:\n%s\n", sdp);
1867 fflush(stdout);
1868 }
1869
1870 static int copy_chapters(int infile, int outfile)
1871 {
1872 AVFormatContext *is = input_files[infile].ctx;
1873 AVFormatContext *os = output_files[outfile];
1874 int i;
1875
1876 for (i = 0; i < is->nb_chapters; i++) {
1877 AVChapter *in_ch = is->chapters[i], *out_ch;
1878 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1879 AV_TIME_BASE_Q, in_ch->time_base);
1880 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1881 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1882
1883
1884 if (in_ch->end < ts_off)
1885 continue;
1886 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1887 break;
1888
1889 out_ch = av_mallocz(sizeof(AVChapter));
1890 if (!out_ch)
1891 return AVERROR(ENOMEM);
1892
1893 out_ch->id = in_ch->id;
1894 out_ch->time_base = in_ch->time_base;
1895 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1896 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1897
1898 if (metadata_chapters_autocopy)
1899 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1900
1901 os->nb_chapters++;
1902 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1903 if (!os->chapters)
1904 return AVERROR(ENOMEM);
1905 os->chapters[os->nb_chapters - 1] = out_ch;
1906 }
1907 return 0;
1908 }
1909
1910 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1911 AVCodecContext *avctx)
1912 {
1913 char *p;
1914 int n = 1, i;
1915 int64_t t;
1916
1917 for (p = kf; *p; p++)
1918 if (*p == ',')
1919 n++;
1920 ost->forced_kf_count = n;
1921 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1922 if (!ost->forced_kf_pts) {
1923 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1924 ffmpeg_exit(1);
1925 }
1926 for (i = 0; i < n; i++) {
1927 p = i ? strchr(p, ',') + 1 : kf;
1928 t = parse_time_or_die("force_key_frames", p, 1);
1929 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1930 }
1931 }
1932
1933 /*
1934 * The following code is the main loop of the file converter
1935 */
1936 static int transcode(AVFormatContext **output_files,
1937 int nb_output_files,
1938 AVInputFile *input_files,
1939 int nb_input_files,
1940 AVStreamMap *stream_maps, int nb_stream_maps)
1941 {
1942 int ret = 0, i, j, k, n, nb_ostreams = 0;
1943 AVFormatContext *is, *os;
1944 AVCodecContext *codec, *icodec;
1945 AVOutputStream *ost, **ost_table = NULL;
1946 AVInputStream *ist;
1947 char error[1024];
1948 int want_sdp = 1;
1949 uint8_t no_packet[MAX_FILES]={0};
1950 int no_packet_count=0;
1951
1952 if (rate_emu)
1953 for (i = 0; i < nb_input_streams; i++)
1954 input_streams[i].start = av_gettime();
1955
1956 /* output stream init */
1957 nb_ostreams = 0;
1958 for(i=0;i<nb_output_files;i++) {
1959 os = output_files[i];
1960 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1961 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1962 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1963 ret = AVERROR(EINVAL);
1964 goto fail;
1965 }
1966 nb_ostreams += os->nb_streams;
1967 }
1968 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1969 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1970 ret = AVERROR(EINVAL);
1971 goto fail;
1972 }
1973
1974 /* Sanity check the mapping args -- do the input files & streams exist? */
1975 for(i=0;i<nb_stream_maps;i++) {
1976 int fi = stream_maps[i].file_index;
1977 int si = stream_maps[i].stream_index;
1978
1979 if (fi < 0 || fi > nb_input_files - 1 ||
1980 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1981 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1982 ret = AVERROR(EINVAL);
1983 goto fail;
1984 }
1985 fi = stream_maps[i].sync_file_index;
1986 si = stream_maps[i].sync_stream_index;
1987 if (fi < 0 || fi > nb_input_files - 1 ||
1988 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1989 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1990 ret = AVERROR(EINVAL);
1991 goto fail;
1992 }
1993 }
1994
1995 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1996 if (!ost_table)
1997 goto fail;
1998 n = 0;
1999 for(k=0;k<nb_output_files;k++) {
2000 os = output_files[k];
2001 for(i=0;i<os->nb_streams;i++,n++) {
2002 int found;
2003 ost = ost_table[n] = output_streams_for_file[k][i];
2004 ost->st = os->streams[i];
2005 if (nb_stream_maps > 0) {
2006 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2007 stream_maps[n].stream_index;
2008
2009 /* Sanity check that the stream types match */
2010 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2011 int i= ost->file_index;
2012 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2013 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2014 stream_maps[n].file_index, stream_maps[n].stream_index,
2015 ost->file_index, ost->index);
2016 ffmpeg_exit(1);
2017 }
2018
2019 } else {
2020 int best_nb_frames=-1;
2021 /* get corresponding input stream index : we select the first one with the right type */
2022 found = 0;
2023 for (j = 0; j < nb_input_streams; j++) {
2024 int skip=0;
2025 ist = &input_streams[j];
2026 if(opt_programid){
2027 int pi,si;
2028 AVFormatContext *f = input_files[ist->file_index].ctx;
2029 skip=1;
2030 for(pi=0; pi<f->nb_programs; pi++){
2031 AVProgram *p= f->programs[pi];
2032 if(p->id == opt_programid)
2033 for(si=0; si<p->nb_stream_indexes; si++){
2034 if(f->streams[ p->stream_index[si] ] == ist->st)
2035 skip=0;
2036 }
2037 }
2038 }
2039 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2040 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2041 if(best_nb_frames < ist->st->codec_info_nb_frames){
2042 best_nb_frames= ist->st->codec_info_nb_frames;
2043 ost->source_index = j;
2044 found = 1;
2045 }
2046 }
2047 }
2048
2049 if (!found) {
2050 if(! opt_programid) {
2051 /* try again and reuse existing stream */
2052 for (j = 0; j < nb_input_streams; j++) {
2053 ist = &input_streams[j];
2054 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2055 && ist->st->discard != AVDISCARD_ALL) {
2056 ost->source_index = j;
2057 found = 1;
2058 }
2059 }
2060 }
2061 if (!found) {
2062 int i= ost->file_index;
2063 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2064 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2065 ost->file_index, ost->index);
2066 ffmpeg_exit(1);
2067 }
2068 }
2069 }
2070 ist = &input_streams[ost->source_index];
2071 ist->discard = 0;
2072 ost->sync_ist = (nb_stream_maps > 0) ?
2073 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2074 stream_maps[n].sync_stream_index] : ist;
2075 }
2076 }
2077
2078 /* for each output stream, we compute the right encoding parameters */
2079 for(i=0;i<nb_ostreams;i++) {
2080 ost = ost_table[i];
2081 os = output_files[ost->file_index];
2082 ist = &input_streams[ost->source_index];
2083
2084 codec = ost->st->codec;
2085 icodec = ist->st->codec;
2086
2087 if (metadata_streams_autocopy)
2088 av_dict_copy(&ost->st->metadata, ist->st->metadata,
2089 AV_DICT_DONT_OVERWRITE);
2090
2091 ost->st->disposition = ist->st->disposition;
2092 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2093 codec->chroma_sample_location = icodec->chroma_sample_location;
2094
2095 if (ost->st->stream_copy) {
2096 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2097
2098 if (extra_size > INT_MAX)
2099 goto fail;
2100
2101 /* if stream_copy is selected, no need to decode or encode */
2102 codec->codec_id = icodec->codec_id;
2103 codec->codec_type = icodec->codec_type;
2104
2105 if(!codec->codec_tag){
2106 if( !os->oformat->codec_tag
2107 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2108 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2109 codec->codec_tag = icodec->codec_tag;
2110 }
2111
2112 codec->bit_rate = icodec->bit_rate;
2113 codec->rc_max_rate = icodec->rc_max_rate;
2114 codec->rc_buffer_size = icodec->rc_buffer_size;
2115 codec->extradata= av_mallocz(extra_size);
2116 if (!codec->extradata)
2117 goto fail;
2118 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2119 codec->extradata_size= icodec->extradata_size;
2120 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){
2121 codec->time_base = icodec->time_base;
2122 codec->time_base.num *= icodec->ticks_per_frame;
2123 av_reduce(&codec->time_base.num, &codec->time_base.den,
2124 codec->time_base.num, codec->time_base.den, INT_MAX);
2125 }else
2126 codec->time_base = ist->st->time_base;
2127 switch(codec->codec_type) {
2128 case AVMEDIA_TYPE_AUDIO:
2129 if(audio_volume != 256) {
2130 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2131 ffmpeg_exit(1);
2132 }
2133 codec->channel_layout = icodec->channel_layout;
2134 codec->sample_rate = icodec->sample_rate;
2135 codec->channels = icodec->channels;
2136 codec->frame_size = icodec->frame_size;
2137 codec->audio_service_type = icodec->audio_service_type;
2138 codec->block_align= icodec->block_align;
2139 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2140 codec->block_align= 0;
2141 if(codec->codec_id == CODEC_ID_AC3)
2142 codec->block_align= 0;
2143 break;
2144 case AVMEDIA_TYPE_VIDEO:
2145 codec->pix_fmt = icodec->pix_fmt;
2146 codec->width = icodec->width;
2147 codec->height = icodec->height;
2148 codec->has_b_frames = icodec->has_b_frames;
2149 if (!codec->sample_aspect_ratio.num) {
2150 codec->sample_aspect_ratio =
2151 ost->st->sample_aspect_ratio =
2152 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2153 ist->st->codec->sample_aspect_ratio.num ?
2154 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2155 }
2156 break;
2157 case AVMEDIA_TYPE_SUBTITLE:
2158 codec->width = icodec->width;
2159 codec->height = icodec->height;
2160 break;
2161 case AVMEDIA_TYPE_DATA:
2162 break;
2163 default:
2164 abort();
2165 }
2166 } else {
2167 if (!ost->enc)
2168 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2169 switch(codec->codec_type) {
2170 case AVMEDIA_TYPE_AUDIO:
2171 ost->fifo= av_fifo_alloc(1024);
2172 if(!ost->fifo)
2173 goto fail;
2174 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2175 if (!codec->sample_rate) {
2176 codec->sample_rate = icodec->sample_rate;
2177 if (icodec->lowres)
2178 codec->sample_rate >>= icodec->lowres;
2179 }
2180 choose_sample_rate(ost->st, ost->enc);
2181 codec->time_base = (AVRational){1, codec->sample_rate};
2182 if (!codec->channels)
2183 codec->channels = icodec->channels;
2184 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2185 codec->channel_layout = 0;
2186 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2187 icodec->request_channels = codec->channels;
2188 ist->decoding_needed = 1;
2189 ost->encoding_needed = 1;
2190 ost->resample_sample_fmt = icodec->sample_fmt;
2191 ost->resample_sample_rate = icodec->sample_rate;
2192 ost->resample_channels = icodec->channels;
2193 break;
2194 case AVMEDIA_TYPE_VIDEO:
2195 if (codec->pix_fmt == PIX_FMT_NONE)
2196 codec->pix_fmt = icodec->pix_fmt;
2197 choose_pixel_fmt(ost->st, ost->enc);
2198
2199 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2200 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2201 ffmpeg_exit(1);
2202 }
2203 ost->video_resample = codec->width != icodec->width ||
2204 codec->height != icodec->height ||
2205 codec->pix_fmt != icodec->pix_fmt;
2206 if (ost->video_resample) {
2207 #if !CONFIG_AVFILTER
2208 avcodec_get_frame_defaults(&ost->pict_tmp);
2209 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2210 codec->width, codec->height)) {
2211 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2212 ffmpeg_exit(1);
2213 }
2214 ost->img_resample_ctx = sws_getContext(
2215 icodec->width,
2216 icodec->height,
2217 icodec->pix_fmt,
2218 codec->width,
2219 codec->height,
2220 codec->pix_fmt,
2221 ost->sws_flags, NULL, NULL, NULL);
2222 if (ost->img_resample_ctx == NULL) {
2223 fprintf(stderr, "Cannot get resampling context\n");
2224 ffmpeg_exit(1);
2225 }
2226 #endif
2227 codec->bits_per_raw_sample= 0;
2228 }
2229 if (!codec->width || !codec->height) {
2230 codec->width = icodec->width;
2231 codec->height = icodec->height;
2232 }
2233 ost->resample_height = icodec->height;
2234 ost->resample_width = icodec->width;
2235 ost->resample_pix_fmt= icodec->pix_fmt;
2236 ost->encoding_needed = 1;
2237 ist->decoding_needed = 1;
2238
2239 if (!ost->frame_rate.num)
2240 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2241 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2242 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2243 ost->frame_rate = ost->enc->supported_framerates[idx];
2244 }
2245 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2246
2247 #if CONFIG_AVFILTER
2248 if (configure_video_filters(ist, ost)) {
2249 fprintf(stderr, "Error opening filters!\n");
2250 exit(1);
2251 }
2252 #endif
2253 break;
2254 case AVMEDIA_TYPE_SUBTITLE:
2255 ost->encoding_needed = 1;
2256 ist->decoding_needed = 1;
2257 break;
2258 default:
2259 abort();
2260 break;
2261 }
2262 /* two pass mode */
2263 if (ost->encoding_needed &&
2264 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2265 char logfilename[1024];
2266 FILE *f;
2267
2268 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2269 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2270 i);
2271 if (codec->flags & CODEC_FLAG_PASS1) {
2272 f = fopen(logfilename, "wb");
2273 if (!f) {
2274 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2275 ffmpeg_exit(1);
2276 }
2277 ost->logfile = f;
2278 } else {
2279 char *logbuffer;
2280 size_t logbuffer_size;
2281 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2282 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2283 ffmpeg_exit(1);
2284 }
2285 codec->stats_in = logbuffer;
2286 }
2287 }
2288 }
2289 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2290 int size= codec->width * codec->height;
2291 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2292 }
2293 }
2294
2295 if (!bit_buffer)
2296 bit_buffer = av_malloc(bit_buffer_size);
2297 if (!bit_buffer) {
2298 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2299 bit_buffer_size);
2300 ret = AVERROR(ENOMEM);
2301 goto fail;
2302 }
2303
2304 /* open each encoder */
2305 for(i=0;i<nb_ostreams;i++) {
2306 ost = ost_table[i];
2307 if (ost->encoding_needed) {
2308 AVCodec *codec = ost->enc;
2309 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2310 if (!codec) {
2311 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2312 ost->st->codec->codec_id, ost->file_index, ost->index);
2313 ret = AVERROR(EINVAL);
2314 goto dump_format;
2315 }
2316 if (dec->subtitle_header) {
2317 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2318 if (!ost->st->codec->subtitle_header) {
2319 ret = AVERROR(ENOMEM);
2320 goto dump_format;
2321 }
2322 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2323 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2324 }
2325 if (avcodec_open(ost->st->codec, codec) < 0) {
2326 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2327 ost->file_index, ost->index);
2328 ret = AVERROR(EINVAL);
2329 goto dump_format;
2330 }
2331 extra_size += ost->st->codec->extradata_size;
2332 }
2333 }
2334
2335 /* open each decoder */
2336 for (i = 0; i < nb_input_streams; i++) {
2337 ist = &input_streams[i];
2338 if (ist->decoding_needed) {
2339 AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2340 if (!codec)
2341 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2342 if (!codec) {
2343 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2344 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2345 ret = AVERROR(EINVAL);
2346 goto dump_format;
2347 }
2348
2349 /* update requested sample format for the decoder based on the
2350 corresponding encoder sample format */
2351 for (j = 0; j < nb_ostreams; j++) {
2352 ost = ost_table[j];
2353 if (ost->source_index == i) {
2354 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2355 break;
2356 }
2357 }
2358
2359 if (avcodec_open(ist->st->codec, codec) < 0) {
2360 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2361 ist->file_index, ist->st->index);
2362 ret = AVERROR(EINVAL);
2363 goto dump_format;
2364 }
2365 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2366 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2367 }
2368 }
2369
2370 /* init pts */
2371 for (i = 0; i < nb_input_streams; i++) {
2372 AVStream *st;
2373 ist = &input_streams[i];
2374 st= ist->st;
2375 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2376 ist->next_pts = AV_NOPTS_VALUE;
2377 init_pts_correction(&ist->pts_ctx);
2378 ist->is_start = 1;
2379 }
2380
2381 /* set meta data information from input file if required */
2382 for (i=0;i<nb_meta_data_maps;i++) {
2383 AVFormatContext *files[2];
2384 AVDictionary **meta[2];
2385 int j;
2386
2387 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2388 if ((index) < 0 || (index) >= (nb_elems)) {\
2389 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2390 (desc), (index));\
2391 ret = AVERROR(EINVAL);\
2392 goto dump_format;\
2393 }
2394
2395 int out_file_index = meta_data_maps[i][0].file;
2396 int in_file_index = meta_data_maps[i][1].file;
2397 if (in_file_index < 0 || out_file_index < 0)
2398 continue;
2399 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2400 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2401
2402 files[0] = output_files[out_file_index];
2403 files[1] = input_files[in_file_index].ctx;
2404
2405 for (j = 0; j < 2; j++) {
2406 AVMetaDataMap *map = &meta_data_maps[i][j];
2407
2408 switch (map->type) {
2409 case 'g':
2410 meta[j] = &files[j]->metadata;
2411 break;
2412 case 's':
2413 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2414 meta[j] = &files[j]->streams[map->index]->metadata;
2415 break;
2416 case 'c':
2417 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2418 meta[j] = &files[j]->chapters[map->index]->metadata;
2419 break;
2420 case 'p':
2421 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2422 meta[j] = &files[j]->programs[map->index]->metadata;
2423 break;
2424 }
2425 }
2426
2427 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2428 }
2429
2430 /* copy global metadata by default */
2431 if (metadata_global_autocopy) {
2432
2433 for (i = 0; i < nb_output_files; i++)
2434 av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2435 AV_DICT_DONT_OVERWRITE);
2436 }
2437
2438 /* copy chapters according to chapter maps */
2439 for (i = 0; i < nb_chapter_maps; i++) {
2440 int infile = chapter_maps[i].in_file;
2441 int outfile = chapter_maps[i].out_file;
2442
2443 if (infile < 0 || outfile < 0)
2444 continue;
2445 if (infile >= nb_input_files) {
2446 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2447 ret = AVERROR(EINVAL);
2448 goto dump_format;
2449 }
2450 if (outfile >= nb_output_files) {
2451 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2452 ret = AVERROR(EINVAL);
2453 goto dump_format;
2454 }
2455 copy_chapters(infile, outfile);
2456 }
2457
2458 /* copy chapters from the first input file that has them*/
2459 if (!nb_chapter_maps)
2460 for (i = 0; i < nb_input_files; i++) {
2461 if (!input_files[i].ctx->nb_chapters)
2462 continue;
2463
2464 for (j = 0; j < nb_output_files; j++)
2465 if ((ret = copy_chapters(i, j)) < 0)
2466 goto dump_format;
2467 break;
2468 }
2469
2470 /* open files and write file headers */
2471 for(i=0;i<nb_output_files;i++) {
2472 os = output_files[i];
2473 if (av_write_header(os) < 0) {
2474 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2475 ret = AVERROR(EINVAL);
2476 goto dump_format;
2477 }
2478 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2479 want_sdp = 0;
2480 }
2481 }
2482
2483 dump_format:
2484 /* dump the file output parameters - cannot be done before in case
2485 of stream copy */
2486 for(i=0;i<nb_output_files;i++) {
2487 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2488 }
2489
2490 /* dump the stream mapping */
2491 if (verbose >= 0) {
2492 fprintf(stderr, "Stream mapping:\n");
2493 for(i=0;i<nb_ostreams;i++) {
2494 ost = ost_table[i];
2495 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2496 input_streams[ost->source_index].file_index,
2497 input_streams[ost->source_index].st->index,
2498 ost->file_index,
2499 ost->index);
2500 if (ost->sync_ist != &input_streams[ost->source_index])
2501 fprintf(stderr, " [sync #%d.%d]",
2502 ost->sync_ist->file_index,
2503 ost->sync_ist->st->index);
2504 fprintf(stderr, "\n");
2505 }
2506 }
2507
2508 if (ret) {
2509 fprintf(stderr, "%s\n", error);
2510 goto fail;
2511 }
2512
2513 if (want_sdp) {
2514 print_sdp(output_files, nb_output_files);
2515 }
2516
2517 if (verbose >= 0)
2518 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2519 term_init();
2520
2521 timer_start = av_gettime();
2522
2523 for(; received_sigterm == 0;) {
2524 int file_index, ist_index;
2525 AVPacket pkt;
2526 double ipts_min;
2527 double opts_min;
2528
2529 redo:
2530 ipts_min= 1e100;
2531 opts_min= 1e100;
2532
2533 /* select the stream that we must read now by looking at the
2534 smallest output pts */
2535 file_index = -1;
2536 for(i=0;i<nb_ostreams;i++) {
2537 double ipts, opts;
2538 ost = ost_table[i];
2539 os = output_files[ost->file_index];
2540 ist = &input_streams[ost->source_index];
2541 if(ist->is_past_recording_time || no_packet[ist->file_index])
2542 continue;
2543 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2544 ipts = (double)ist->pts;
2545 if (!input_files[ist->file_index].eof_reached){
2546 if(ipts < ipts_min) {
2547 ipts_min = ipts;
2548 if(input_sync ) file_index = ist->file_index;
2549 }
2550 if(opts < opts_min) {
2551 opts_min = opts;
2552 if(!input_sync) file_index = ist->file_index;
2553 }
2554 }
2555 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2556 file_index= -1;
2557 break;
2558 }
2559 }
2560 /* if none, if is finished */
2561 if (file_index < 0) {
2562 if(no_packet_count){
2563 no_packet_count=0;
2564 memset(no_packet, 0, sizeof(no_packet));
2565 usleep(10000);
2566 continue;
2567 }
2568 break;
2569 }
2570
2571 /* finish if limit size exhausted */
2572 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2573 break;
2574
2575 /* read a frame from it and output it in the fifo */
2576 is = input_files[file_index].ctx;
2577 ret= av_read_frame(is, &pkt);
2578 if(ret == AVERROR(EAGAIN)){
2579 no_packet[file_index]=1;
2580 no_packet_count++;
2581 continue;
2582 }
2583 if (ret < 0) {
2584 input_files[file_index].eof_reached = 1;
2585 if (opt_shortest)
2586 break;
2587 else
2588 continue;
2589 }
2590
2591 no_packet_count=0;
2592 memset(no_packet, 0, sizeof(no_packet));
2593
2594 if (do_pkt_dump) {
2595 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2596 is->streams[pkt.stream_index]);
2597 }
2598 /* the following test is needed in case new streams appear
2599 dynamically in stream : we ignore them */
2600 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2601 goto discard_packet;
2602 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2603 ist = &input_streams[ist_index];
2604 if (ist->discard)
2605 goto discard_packet;
2606
2607 if (pkt.dts != AV_NOPTS_VALUE)
2608 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2609 if (pkt.pts != AV_NOPTS_VALUE)
2610 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2611
2612 if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2613 && input_files_ts_scale[file_index][pkt.stream_index]){
2614 if(pkt.pts != AV_NOPTS_VALUE)
2615 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2616 if(pkt.dts != AV_NOPTS_VALUE)
2617 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2618 }
2619
2620 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2621 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2622 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2623 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2624 int64_t delta= pkt_dts - ist->next_pts;
2625 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2626 input_files_ts_offset[ist->file_index]-= delta;
2627 if (verbose > 2)
2628 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2629 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2630 if(pkt.pts != AV_NOPTS_VALUE)
2631 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2632 }
2633 }
2634
2635 /* finish if recording time exhausted */
2636 if (recording_time != INT64_MAX &&
2637 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2638 ist->is_past_recording_time = 1;
2639 goto discard_packet;
2640 }
2641
2642 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2643 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2644
2645 if (verbose >= 0)
2646 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2647 ist->file_index, ist->st->index);
2648 if (exit_on_error)
2649 ffmpeg_exit(1);
2650 av_free_packet(&pkt);
2651 goto redo;
2652 }
2653
2654 discard_packet:
2655 av_free_packet(&pkt);
2656
2657 /* dump report by using the output first video and audio streams */
2658 print_report(output_files, ost_table, nb_ostreams, 0);
2659 }
2660
2661 /* at the end of stream, we must flush the decoder buffers */
2662 for (i = 0; i < nb_input_streams; i++) {
2663 ist = &input_streams[i];
2664 if (ist->decoding_needed) {
2665 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2666 }
2667 }
2668
2669 term_exit();
2670
2671 /* write the trailer if needed and close file */
2672 for(i=0;i<nb_output_files;i++) {
2673 os = output_files[i];
2674 av_write_trailer(os);
2675 }
2676
2677 /* dump report by using the first video and audio streams */
2678 print_report(output_files, ost_table, nb_ostreams, 1);
2679
2680 /* close each encoder */
2681 for(i=0;i<nb_ostreams;i++) {
2682 ost = ost_table[i];
2683 if (ost->encoding_needed) {
2684 av_freep(&ost->st->codec->stats_in);
2685 avcodec_close(ost->st->codec);
2686 }
2687 #if CONFIG_AVFILTER
2688 avfilter_graph_free(&ost->graph);
2689 #endif
2690 }
2691
2692 /* close each decoder */
2693 for (i = 0; i < nb_input_streams; i++) {
2694 ist = &input_streams[i];
2695 if (ist->decoding_needed) {
2696 avcodec_close(ist->st->codec);
2697 }
2698 }
2699
2700 /* finished ! */
2701 ret = 0;
2702
2703 fail:
2704 av_freep(&bit_buffer);
2705
2706 if (ost_table) {
2707 for(i=0;i<nb_ostreams;i++) {
2708 ost = ost_table[i];
2709 if (ost) {
2710 if (ost->st->stream_copy)
2711 av_freep(&ost->st->codec->extradata);
2712 if (ost->logfile) {
2713 fclose(ost->logfile);
2714 ost->logfile = NULL;
2715 }
2716 av_fifo_free(ost->fifo); /* works even if fifo is not
2717 initialized but set to zero */
2718 av_freep(&ost->st->codec->subtitle_header);
2719 av_free(ost->pict_tmp.data[0]);
2720 av_free(ost->forced_kf_pts);
2721 if (ost->video_resample)
2722 sws_freeContext(ost->img_resample_ctx);
2723 if (ost->resample)
2724 audio_resample_close(ost->resample);
2725 if (ost->reformat_ctx)
2726 av_audio_convert_free(ost->reformat_ctx);
2727 av_free(ost);
2728 }
2729 }
2730 av_free(ost_table);
2731 }
2732 return ret;
2733 }
2734
2735 static int opt_format(const char *opt, const char *arg)
2736 {
2737 last_asked_format = arg;
2738 return 0;
2739 }
2740
2741 static int opt_video_rc_override_string(const char *opt, const char *arg)
2742 {
2743 video_rc_override_string = arg;
2744 return 0;
2745 }
2746
2747 static int opt_me_threshold(const char *opt, const char *arg)
2748 {
2749 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2750 return 0;
2751 }
2752
2753 static int opt_verbose(const char *opt, const char *arg)
2754 {
2755 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2756 return 0;
2757 }
2758
2759 static int opt_frame_rate(const char *opt, const char *arg)
2760 {
2761 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2762 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2763 ffmpeg_exit(1);
2764 }
2765 return 0;
2766 }
2767
2768 static int opt_bitrate(const char *opt, const char *arg)
2769 {
2770 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2771
2772 opt_default(opt, arg);
2773
2774 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2775 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2776
2777 return 0;
2778 }
2779
2780 static int opt_frame_crop(const char *opt, const char *arg)
2781 {
2782 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2783 return AVERROR(EINVAL);
2784 }
2785
2786 static int opt_frame_size(const char *opt, const char *arg)
2787 {
2788 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2789 fprintf(stderr, "Incorrect frame size\n");
2790 return AVERROR(EINVAL);
2791 }
2792 return 0;
2793 }
2794
2795 static int opt_pad(const char *opt, const char *arg) {
2796 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2797 return -1;
2798 }
2799
2800 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2801 {
2802 if (strcmp(arg, "list")) {
2803 frame_pix_fmt = av_get_pix_fmt(arg);
2804 if (frame_pix_fmt == PIX_FMT_NONE) {
2805 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2806 return AVERROR(EINVAL);
2807 }
2808 } else {
2809 show_pix_fmts();
2810 ffmpeg_exit(0);
2811 }
2812 return 0;
2813 }
2814
2815 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2816 {
2817 int x = 0, y = 0;
2818 double ar = 0;
2819 const char *p;
2820 char *end;
2821
2822 p = strchr(arg, ':');
2823 if (p) {
2824 x = strtol(arg, &end, 10);
2825 if (end == p)
2826 y = strtol(end+1, &end, 10);
2827 if (x > 0 && y > 0)
2828 ar = (double)x / (double)y;
2829 } else
2830 ar = strtod(arg, NULL);
2831
2832 if (!ar) {
2833 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2834 return AVERROR(EINVAL);
2835 }
2836 frame_aspect_ratio = ar;
2837 return 0;
2838 }
2839
2840 static int opt_metadata(const char *opt, const char *arg)
2841 {
2842 char *mid= strchr(arg, '=');
2843
2844 if(!mid){
2845 fprintf(stderr, "Missing =\n");
2846 ffmpeg_exit(1);
2847 }
2848 *mid++= 0;
2849
2850 av_dict_set(&metadata, arg, mid, 0);
2851
2852 return 0;
2853 }
2854
2855 static int opt_qscale(const char *opt, const char *arg)
2856 {
2857 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2858 if (video_qscale == 0) {
2859 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2860 return AVERROR(EINVAL);
2861 }
2862 return 0;
2863 }
2864
2865 static int opt_top_field_first(const char *opt, const char *arg)
2866 {
2867 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2868 return 0;
2869 }
2870
2871 static int opt_thread_count(const char *opt, const char *arg)
2872 {
2873 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2874 #if !HAVE_THREADS
2875 if (verbose >= 0)
2876 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2877 #endif
2878 return 0;
2879 }
2880
2881 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2882 {
2883 if (strcmp(arg, "list")) {
2884 audio_sample_fmt = av_get_sample_fmt(arg);
2885 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2886 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2887 return AVERROR(EINVAL);
2888 }
2889 } else {
2890 int i;
2891 char fmt_str[128];
2892 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2893 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2894 ffmpeg_exit(0);
2895 }
2896 return 0;
2897 }
2898
2899 static int opt_audio_rate(const char *opt, const char *arg)
2900 {
2901 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2902 return 0;
2903 }
2904
2905 static int opt_audio_channels(const char *opt, const char *arg)
2906 {
2907 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2908 return 0;
2909 }
2910
2911 static int opt_video_channel(const char *opt, const char *arg)
2912 {
2913 video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2914 return 0;
2915 }
2916
2917 static int opt_video_standard(const char *opt, const char *arg)
2918 {
2919 video_standard = av_strdup(arg);
2920 return 0;
2921 }
2922
2923 static int opt_codec(int *pstream_copy, char **pcodec_name,
2924 int codec_type, const char *arg)
2925 {
2926 av_freep(pcodec_name);
2927 if (!strcmp(arg, "copy")) {
2928 *pstream_copy = 1;
2929 } else {
2930 *pcodec_name = av_strdup(arg);
2931 }
2932 return 0;
2933 }
2934
2935 static int opt_audio_codec(const char *opt, const char *arg)
2936 {
2937 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2938 }
2939
2940 static int opt_video_codec(const char *opt, const char *arg)
2941 {
2942 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2943 }
2944
2945 static int opt_subtitle_codec(const char *opt, const char *arg)
2946 {
2947 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2948 }
2949
2950 static int opt_data_codec(const char *opt, const char *arg)
2951 {
2952 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2953 }
2954
2955 static int opt_codec_tag(const char *opt, const char *arg)
2956 {
2957 char *tail;
2958 uint32_t *codec_tag;
2959
2960 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2961 !strcmp(opt, "vtag") ? &video_codec_tag :
2962 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2963 if (!codec_tag)
2964 return -1;
2965
2966 *codec_tag = strtol(arg, &tail, 0);
2967 if (!tail || *tail)
2968 *codec_tag = AV_RL32(arg);
2969
2970 return 0;
2971 }
2972
2973 static int opt_map(const char *opt, const char *arg)
2974 {
2975 AVStreamMap *m;
2976 char *p;
2977
2978 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2979 m = &stream_maps[nb_stream_maps-1];
2980
2981 m->file_index = strtol(arg, &p, 0);
2982 if (*p)
2983 p++;
2984
2985 m->stream_index = strtol(p, &p, 0);
2986 if (*p) {
2987 p++;
2988 m->sync_file_index = strtol(p, &p, 0);
2989 if (*p)
2990 p++;
2991 m->sync_stream_index = strtol(p, &p, 0);
2992 } else {
2993 m->sync_file_index = m->file_index;
2994 m->sync_stream_index = m->stream_index;
2995 }
2996 return 0;
2997 }
2998
2999 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3000 {
3001 *endptr = arg;
3002 if (*arg == ',') {
3003 *type = *(++arg);
3004 switch (*arg) {
3005 case 'g':
3006 break;
3007 case 's':
3008 case 'c':
3009 case 'p':
3010 *index = strtol(++arg, endptr, 0);
3011 break;
3012 default:
3013 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3014 ffmpeg_exit(1);
3015 }
3016 } else
3017 *type = 'g';
3018 }
3019
3020 static int opt_map_metadata(const char *opt, const char *arg)
3021 {
3022 AVMetaDataMap *m, *m1;
3023 char *p;
3024
3025 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3026 &nb_meta_data_maps, nb_meta_data_maps + 1);
3027
3028 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3029 m->file = strtol(arg, &p, 0);
3030 parse_meta_type(p, &m->type, &m->index, &p);
3031 if (*p)
3032 p++;
3033
3034 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3035 m1->file = strtol(p, &p, 0);
3036 parse_meta_type(p, &m1->type, &m1->index, &p);
3037
3038 if (m->type == 'g' || m1->type == 'g')
3039 metadata_global_autocopy = 0;
3040 if (m->type == 's' || m1->type == 's')
3041 metadata_streams_autocopy = 0;
3042 if (m->type == 'c' || m1->type == 'c')
3043 metadata_chapters_autocopy = 0;
3044
3045 return 0;
3046 }
3047
3048 static int opt_map_meta_data(const char *opt, const char *arg)
3049 {
3050 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3051 "Use -map_metadata instead.\n");
3052 return opt_map_metadata(opt, arg);
3053 }
3054
3055 static int opt_map_chapters(const char *opt, const char *arg)
3056 {
3057 AVChapterMap *c;
3058 char *p;
3059
3060 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3061 nb_chapter_maps + 1);
3062 c = &chapter_maps[nb_chapter_maps - 1];
3063 c->out_file = strtol(arg, &p, 0);
3064 if (*p)
3065 p++;
3066
3067 c->in_file = strtol(p, &p, 0);
3068 return 0;
3069 }
3070
3071 static int opt_input_ts_scale(const char *opt, const char *arg)
3072 {
3073 unsigned int stream;
3074 double scale;
3075 char *p;
3076
3077 stream = strtol(arg, &p, 0);
3078 if (*p)
3079 p++;
3080 scale= strtod(p, &p);
3081
3082 if(stream >= MAX_STREAMS)
3083 ffmpeg_exit(1);
3084
3085 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);
3086 input_files_ts_scale[nb_input_files][stream]= scale;
3087 return 0;
3088 }
3089
3090 static int opt_recording_time(const char *opt, const char *arg)
3091 {
3092 recording_time = parse_time_or_die(opt, arg, 1);
3093 return 0;
3094 }
3095
3096 static int opt_start_time(const char *opt, const char *arg)
3097 {
3098 start_time = parse_time_or_die(opt, arg, 1);
3099 return 0;
3100 }
3101
3102 static int opt_recording_timestamp(const char *opt, const char *arg)
3103 {
3104 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3105 return 0;
3106 }
3107
3108 static int opt_input_ts_offset(const char *opt, const char *arg)
3109 {
3110 input_ts_offset = parse_time_or_die(opt, arg, 1);
3111 return 0;
3112 }
3113
3114 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3115 {
3116 const char *codec_string = encoder ? "encoder" : "decoder";
3117 AVCodec *codec;
3118
3119 if(!name)
3120 return CODEC_ID_NONE;
3121 codec = encoder ?
3122 avcodec_find_encoder_by_name(name) :
3123 avcodec_find_decoder_by_name(name);
3124 if(!codec) {
3125 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3126 ffmpeg_exit(1);
3127 }
3128 if(codec->type != type) {
3129 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3130 ffmpeg_exit(1);
3131 }
3132 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3133 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3134 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3135 "results.\nAdd '-strict experimental' if you want to use it.\n",
3136 codec_string, codec->name);
3137 codec = encoder ?
3138 avcodec_find_encoder(codec->id) :
3139 avcodec_find_decoder(codec->id);
3140 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3141 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3142 codec_string, codec->name);
3143 ffmpeg_exit(1);
3144 }
3145 return codec->id;
3146 }
3147
3148 static int opt_input_file(const char *opt, const char *filename)
3149 {
3150 AVFormatContext *ic;
3151 AVFormatParameters params, *ap = &params;
3152 AVInputFormat *file_iformat = NULL;
3153 int err, i, ret, rfps, rfps_base;
3154 int64_t timestamp;
3155
3156 if (last_asked_format) {
3157 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3158 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3159 ffmpeg_exit(1);
3160 }
3161 last_asked_format = NULL;
3162 }
3163
3164 if (!strcmp(filename, "-"))
3165 filename = "pipe:";
3166
3167 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3168 !strcmp<