5d6fa1ea022a8ece625d3721ecf10b0e58a64c6b
[libav.git] / ffmpeg.c
1 /*
2 * ffmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int file_index;
83 int stream_index;
84 int sync_file_index;
85 int sync_stream_index;
86 } StreamMap;
87
88 /**
89 * select an input file for an output file
90 */
91 typedef struct MetadataMap {
92 int file; //< file index
93 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94 int index; //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98 int in_file;
99 int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
106
107 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
108
109 static const char *last_asked_format = NULL;
110 static int64_t input_files_ts_offset[MAX_FILES];
111 static double *input_files_ts_scale[MAX_FILES] = {NULL};
112 static AVCodec **input_codecs = NULL;
113 static int nb_input_codecs = 0;
114 static int nb_input_files_ts_scale[MAX_FILES] = {0};
115
116 static AVFormatContext *output_files[MAX_FILES];
117 static AVDictionary *output_opts[MAX_FILES];
118 static int nb_output_files = 0;
119
120 static StreamMap *stream_maps = NULL;
121 static int nb_stream_maps;
122
123 /* first item specifies output metadata, second is input */
124 static MetadataMap (*meta_data_maps)[2] = NULL;
125 static int nb_meta_data_maps;
126 static int metadata_global_autocopy = 1;
127 static int metadata_streams_autocopy = 1;
128 static int metadata_chapters_autocopy = 1;
129
130 static ChapterMap *chapter_maps = NULL;
131 static int nb_chapter_maps;
132
133 /* indexed by output file stream index */
134 static int *streamid_map = NULL;
135 static int nb_streamid_map = 0;
136
137 static int frame_width = 0;
138 static int frame_height = 0;
139 static float frame_aspect_ratio = 0;
140 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
141 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
142 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
143 static AVRational frame_rate;
144 static float video_qscale = 0;
145 static uint16_t *intra_matrix = NULL;
146 static uint16_t *inter_matrix = NULL;
147 static const char *video_rc_override_string=NULL;
148 static int video_disable = 0;
149 static int video_discard = 0;
150 static char *video_codec_name = NULL;
151 static unsigned int video_codec_tag = 0;
152 static char *video_language = NULL;
153 static int same_quality = 0;
154 static int do_deinterlace = 0;
155 static int top_field_first = -1;
156 static int me_threshold = 0;
157 static int intra_dc_precision = 8;
158 static int loop_input = 0;
159 static int loop_output = AVFMT_NOOUTPUTLOOP;
160 static int qp_hist = 0;
161 #if CONFIG_AVFILTER
162 static char *vfilters = NULL;
163 #endif
164
165 static int intra_only = 0;
166 static int audio_sample_rate = 0;
167 static int64_t channel_layout = 0;
168 #define QSCALE_NONE -99999
169 static float audio_qscale = QSCALE_NONE;
170 static int audio_disable = 0;
171 static int audio_channels = 0;
172 static char *audio_codec_name = NULL;
173 static unsigned int audio_codec_tag = 0;
174 static char *audio_language = NULL;
175
176 static int subtitle_disable = 0;
177 static char *subtitle_codec_name = NULL;
178 static char *subtitle_language = NULL;
179 static unsigned int subtitle_codec_tag = 0;
180
181 static int data_disable = 0;
182 static char *data_codec_name = NULL;
183 static unsigned int data_codec_tag = 0;
184
185 static float mux_preload= 0.5;
186 static float mux_max_delay= 0.7;
187
188 static int64_t recording_time = INT64_MAX;
189 static int64_t start_time = 0;
190 static int64_t recording_timestamp = 0;
191 static int64_t input_ts_offset = 0;
192 static int file_overwrite = 0;
193 static AVDictionary *metadata;
194 static int do_benchmark = 0;
195 static int do_hex_dump = 0;
196 static int do_pkt_dump = 0;
197 static int do_psnr = 0;
198 static int do_pass = 0;
199 static char *pass_logfilename_prefix = NULL;
200 static int audio_stream_copy = 0;
201 static int video_stream_copy = 0;
202 static int subtitle_stream_copy = 0;
203 static int data_stream_copy = 0;
204 static int video_sync_method= -1;
205 static int audio_sync_method= 0;
206 static float audio_drift_threshold= 0.1;
207 static int copy_ts= 0;
208 static int copy_tb;
209 static int opt_shortest = 0;
210 static char *vstats_filename;
211 static FILE *vstats_file;
212 static int opt_programid = 0;
213 static int copy_initial_nonkeyframes = 0;
214
215 static int rate_emu = 0;
216
217 static int audio_volume = 256;
218
219 static int exit_on_error = 0;
220 static int using_stdin = 0;
221 static int verbose = 1;
222 static int thread_count= 1;
223 static int64_t video_size = 0;
224 static int64_t audio_size = 0;
225 static int64_t extra_size = 0;
226 static int nb_frames_dup = 0;
227 static int nb_frames_drop = 0;
228 static int input_sync;
229 static uint64_t limit_filesize = 0;
230 static int force_fps = 0;
231 static char *forced_key_frames = NULL;
232
233 static float dts_delta_threshold = 10;
234
235 static int64_t timer_start;
236
237 static uint8_t *audio_buf;
238 static uint8_t *audio_out;
239 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
240
241 static short *samples;
242
243 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
245 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
246
247 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
248
249 struct InputStream;
250
251 typedef struct OutputStream {
252 int file_index; /* file index */
253 int index; /* stream index in the output file */
254 int source_index; /* InputStream index */
255 AVStream *st; /* stream in the output file */
256 int encoding_needed; /* true if encoding needed for this stream */
257 int frame_number;
258 /* input pts and corresponding output pts
259 for A/V sync */
260 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
261 struct InputStream *sync_ist; /* input stream to sync against */
262 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
263 AVBitStreamFilterContext *bitstream_filters;
264 AVCodec *enc;
265
266 /* video only */
267 int video_resample;
268 AVFrame pict_tmp; /* temporary image for resampling */
269 struct SwsContext *img_resample_ctx; /* for image resampling */
270 int resample_height;
271 int resample_width;
272 int resample_pix_fmt;
273 AVRational frame_rate;
274
275 float frame_aspect_ratio;
276
277 /* forced key frames */
278 int64_t *forced_kf_pts;
279 int forced_kf_count;
280 int forced_kf_index;
281
282 /* audio only */
283 int audio_resample;
284 ReSampleContext *resample; /* for audio resampling */
285 int resample_sample_fmt;
286 int resample_channels;
287 int resample_sample_rate;
288 int reformat_pair;
289 AVAudioConvert *reformat_ctx;
290 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
291 FILE *logfile;
292
293 #if CONFIG_AVFILTER
294 AVFilterContext *output_video_filter;
295 AVFilterContext *input_video_filter;
296 AVFilterBufferRef *picref;
297 char *avfilter;
298 AVFilterGraph *graph;
299 #endif
300
301 int sws_flags;
302 } OutputStream;
303
304 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
305 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
306
307 typedef struct InputStream {
308 int file_index;
309 AVStream *st;
310 int discard; /* true if stream data should be discarded */
311 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
312 int64_t sample_index; /* current sample */
313
314 int64_t start; /* time when read started */
315 int64_t next_pts; /* synthetic pts for cases where pkt.pts
316 is not defined */
317 int64_t pts; /* current pts */
318 PtsCorrectionContext pts_ctx;
319 int is_start; /* is 1 at the start and after a discontinuity */
320 int showed_multi_packet_warning;
321 int is_past_recording_time;
322 #if CONFIG_AVFILTER
323 AVFrame *filter_frame;
324 int has_filter_frame;
325 #endif
326 } InputStream;
327
328 typedef struct InputFile {
329 AVFormatContext *ctx;
330 int eof_reached; /* true if eof reached */
331 int ist_index; /* index of first stream in ist_table */
332 int buffer_size; /* current total buffer size */
333 } InputFile;
334
335 static InputStream *input_streams = NULL;
336 static int nb_input_streams = 0;
337 static InputFile *input_files = NULL;
338 static int nb_input_files = 0;
339
340 #if CONFIG_AVFILTER
341
342 static int configure_video_filters(InputStream *ist, OutputStream *ost)
343 {
344 AVFilterContext *last_filter, *filter;
345 /** filter graph containing all filters including input & output */
346 AVCodecContext *codec = ost->st->codec;
347 AVCodecContext *icodec = ist->st->codec;
348 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
349 AVRational sample_aspect_ratio;
350 char args[255];
351 int ret;
352
353 ost->graph = avfilter_graph_alloc();
354
355 if (ist->st->sample_aspect_ratio.num){
356 sample_aspect_ratio = ist->st->sample_aspect_ratio;
357 }else
358 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
359
360 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
361 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
362 sample_aspect_ratio.num, sample_aspect_ratio.den);
363
364 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
365 "src", args, NULL, ost->graph);
366 if (ret < 0)
367 return ret;
368 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
369 "out", NULL, &ffsink_ctx, ost->graph);
370 if (ret < 0)
371 return ret;
372 last_filter = ost->input_video_filter;
373
374 if (codec->width != icodec->width || codec->height != icodec->height) {
375 snprintf(args, 255, "%d:%d:flags=0x%X",
376 codec->width,
377 codec->height,
378 ost->sws_flags);
379 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380 NULL, args, NULL, ost->graph)) < 0)
381 return ret;
382 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
383 return ret;
384 last_filter = filter;
385 }
386
387 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
388 ost->graph->scale_sws_opts = av_strdup(args);
389
390 if (ost->avfilter) {
391 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
392 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
393
394 outputs->name = av_strdup("in");
395 outputs->filter_ctx = last_filter;
396 outputs->pad_idx = 0;
397 outputs->next = NULL;
398
399 inputs->name = av_strdup("out");
400 inputs->filter_ctx = ost->output_video_filter;
401 inputs->pad_idx = 0;
402 inputs->next = NULL;
403
404 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
405 return ret;
406 av_freep(&ost->avfilter);
407 } else {
408 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
409 return ret;
410 }
411
412 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
413 return ret;
414
415 codec->width = ost->output_video_filter->inputs[0]->w;
416 codec->height = ost->output_video_filter->inputs[0]->h;
417 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
418 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
419 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
420 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
421
422 return 0;
423 }
424 #endif /* CONFIG_AVFILTER */
425
426 static void term_exit(void)
427 {
428 av_log(NULL, AV_LOG_QUIET, "");
429 }
430
431 static volatile int received_sigterm = 0;
432 static volatile int received_nb_signals = 0;
433
434 static void
435 sigterm_handler(int sig)
436 {
437 received_sigterm = sig;
438 received_nb_signals++;
439 term_exit();
440 }
441
442 static void term_init(void)
443 {
444 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
445 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
446 #ifdef SIGXCPU
447 signal(SIGXCPU, sigterm_handler);
448 #endif
449 }
450
451 static int decode_interrupt_cb(void)
452 {
453 return received_nb_signals > 1;
454 }
455
456 static int ffmpeg_exit(int ret)
457 {
458 int i;
459
460 /* close files */
461 for(i=0;i<nb_output_files;i++) {
462 AVFormatContext *s = output_files[i];
463 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
464 avio_close(s->pb);
465 avformat_free_context(s);
466 av_free(output_streams_for_file[i]);
467 av_dict_free(&output_opts[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 uninit_opts();
495 av_free(audio_buf);
496 av_free(audio_out);
497 allocated_audio_buf_size= allocated_audio_out_size= 0;
498 av_free(samples);
499
500 #if CONFIG_AVFILTER
501 avfilter_uninit();
502 #endif
503
504 if (received_sigterm) {
505 fprintf(stderr,
506 "Received signal %d: terminating.\n",
507 (int) received_sigterm);
508 exit (255);
509 }
510
511 exit(ret); /* not all OS-es handle main() return value */
512 return ret;
513 }
514
515 static void assert_avoptions(AVDictionary *m)
516 {
517 AVDictionaryEntry *t;
518 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
519 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
520 ffmpeg_exit(1);
521 }
522 }
523
524 /* similar to ff_dynarray_add() and av_fast_realloc() */
525 static void *grow_array(void *array, int elem_size, int *size, int new_size)
526 {
527 if (new_size >= INT_MAX / elem_size) {
528 fprintf(stderr, "Array too big.\n");
529 ffmpeg_exit(1);
530 }
531 if (*size < new_size) {
532 uint8_t *tmp = av_realloc(array, new_size*elem_size);
533 if (!tmp) {
534 fprintf(stderr, "Could not alloc buffer.\n");
535 ffmpeg_exit(1);
536 }
537 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
538 *size = new_size;
539 return tmp;
540 }
541 return array;
542 }
543
544 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
545 {
546 if(codec && codec->sample_fmts){
547 const enum AVSampleFormat *p= codec->sample_fmts;
548 for(; *p!=-1; p++){
549 if(*p == st->codec->sample_fmt)
550 break;
551 }
552 if (*p == -1) {
553 av_log(NULL, AV_LOG_WARNING,
554 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
555 av_get_sample_fmt_name(st->codec->sample_fmt),
556 codec->name,
557 av_get_sample_fmt_name(codec->sample_fmts[0]));
558 st->codec->sample_fmt = codec->sample_fmts[0];
559 }
560 }
561 }
562
563 /**
564 * Update the requested input sample format based on the output sample format.
565 * This is currently only used to request float output from decoders which
566 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
567 * Ideally this will be removed in the future when decoders do not do format
568 * conversion and only output in their native format.
569 */
570 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
571 AVCodecContext *enc)
572 {
573 /* if sample formats match or a decoder sample format has already been
574 requested, just return */
575 if (enc->sample_fmt == dec->sample_fmt ||
576 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
577 return;
578
579 /* if decoder supports more than one output format */
580 if (dec_codec && dec_codec->sample_fmts &&
581 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
582 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
583 const enum AVSampleFormat *p;
584 int min_dec = -1, min_inc = -1;
585
586 /* find a matching sample format in the encoder */
587 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
588 if (*p == enc->sample_fmt) {
589 dec->request_sample_fmt = *p;
590 return;
591 } else if (*p > enc->sample_fmt) {
592 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
593 } else
594 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
595 }
596
597 /* if none match, provide the one that matches quality closest */
598 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
599 enc->sample_fmt - min_dec;
600 }
601 }
602
603 static void choose_sample_rate(AVStream *st, AVCodec *codec)
604 {
605 if(codec && codec->supported_samplerates){
606 const int *p= codec->supported_samplerates;
607 int best=0;
608 int best_dist=INT_MAX;
609 for(; *p; p++){
610 int dist= abs(st->codec->sample_rate - *p);
611 if(dist < best_dist){
612 best_dist= dist;
613 best= *p;
614 }
615 }
616 if(best_dist){
617 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
618 }
619 st->codec->sample_rate= best;
620 }
621 }
622
623 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
624 {
625 if(codec && codec->pix_fmts){
626 const enum PixelFormat *p= codec->pix_fmts;
627 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
628 if(st->codec->codec_id==CODEC_ID_MJPEG){
629 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
630 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
631 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};
632 }
633 }
634 for(; *p!=-1; p++){
635 if(*p == st->codec->pix_fmt)
636 break;
637 }
638 if (*p == -1) {
639 if(st->codec->pix_fmt != PIX_FMT_NONE)
640 av_log(NULL, AV_LOG_WARNING,
641 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
642 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
643 codec->name,
644 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
645 st->codec->pix_fmt = codec->pix_fmts[0];
646 }
647 }
648 }
649
650 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
651 {
652 int idx = oc->nb_streams - 1;
653 OutputStream *ost;
654
655 output_streams_for_file[file_idx] =
656 grow_array(output_streams_for_file[file_idx],
657 sizeof(*output_streams_for_file[file_idx]),
658 &nb_output_streams_for_file[file_idx],
659 oc->nb_streams);
660 ost = output_streams_for_file[file_idx][idx] =
661 av_mallocz(sizeof(OutputStream));
662 if (!ost) {
663 fprintf(stderr, "Could not alloc output stream\n");
664 ffmpeg_exit(1);
665 }
666 ost->file_index = file_idx;
667 ost->index = idx;
668
669 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
670 return ost;
671 }
672
673 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
674 {
675 int i, err;
676 AVFormatContext *ic = NULL;
677 int nopts = 0;
678
679 err = avformat_open_input(&ic, filename, NULL, NULL);
680 if (err < 0)
681 return err;
682 /* copy stream format */
683 s->nb_streams = 0;
684 s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
685 for(i=0;i<ic->nb_streams;i++) {
686 AVStream *st;
687 AVCodec *codec;
688
689 s->nb_streams++;
690
691 // FIXME: a more elegant solution is needed
692 st = av_mallocz(sizeof(AVStream));
693 memcpy(st, ic->streams[i], sizeof(AVStream));
694 st->info = NULL;
695 st->codec = avcodec_alloc_context();
696 if (!st->codec) {
697 print_error(filename, AVERROR(ENOMEM));
698 ffmpeg_exit(1);
699 }
700 avcodec_copy_context(st->codec, ic->streams[i]->codec);
701 s->streams[i] = st;
702
703 codec = avcodec_find_encoder(st->codec->codec_id);
704 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
705 if (audio_stream_copy) {
706 st->stream_copy = 1;
707 } else
708 choose_sample_fmt(st, codec);
709 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
710 if (video_stream_copy) {
711 st->stream_copy = 1;
712 } else
713 choose_pixel_fmt(st, codec);
714 }
715
716 if(st->codec->flags & CODEC_FLAG_BITEXACT)
717 nopts = 1;
718
719 new_output_stream(s, nb_output_files);
720 }
721
722 if (!nopts)
723 s->timestamp = av_gettime();
724
725 av_close_input_file(ic);
726 return 0;
727 }
728
729 static double
730 get_sync_ipts(const OutputStream *ost)
731 {
732 const InputStream *ist = ost->sync_ist;
733 return (double)(ist->pts - start_time)/AV_TIME_BASE;
734 }
735
736 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
737 int ret;
738
739 while(bsfc){
740 AVPacket new_pkt= *pkt;
741 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
742 &new_pkt.data, &new_pkt.size,
743 pkt->data, pkt->size,
744 pkt->flags & AV_PKT_FLAG_KEY);
745 if(a>0){
746 av_free_packet(pkt);
747 new_pkt.destruct= av_destruct_packet;
748 } else if(a<0){
749 fprintf(stderr, "%s failed for stream %d, codec %s",
750 bsfc->filter->name, pkt->stream_index,
751 avctx->codec ? avctx->codec->name : "copy");
752 print_error("", a);
753 if (exit_on_error)
754 ffmpeg_exit(1);
755 }
756 *pkt= new_pkt;
757
758 bsfc= bsfc->next;
759 }
760
761 ret= av_interleaved_write_frame(s, pkt);
762 if(ret < 0){
763 print_error("av_interleaved_write_frame()", ret);
764 ffmpeg_exit(1);
765 }
766 }
767
768 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
769
770 static void do_audio_out(AVFormatContext *s,
771 OutputStream *ost,
772 InputStream *ist,
773 unsigned char *buf, int size)
774 {
775 uint8_t *buftmp;
776 int64_t audio_out_size, audio_buf_size;
777 int64_t allocated_for_size= size;
778
779 int size_out, frame_bytes, ret, resample_changed;
780 AVCodecContext *enc= ost->st->codec;
781 AVCodecContext *dec= ist->st->codec;
782 int osize = av_get_bytes_per_sample(enc->sample_fmt);
783 int isize = av_get_bytes_per_sample(dec->sample_fmt);
784 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
785
786 need_realloc:
787 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
788 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
789 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
790 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
791 audio_buf_size*= osize*enc->channels;
792
793 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
794 if(coded_bps > 8*osize)
795 audio_out_size= audio_out_size * coded_bps / (8*osize);
796 audio_out_size += FF_MIN_BUFFER_SIZE;
797
798 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
799 fprintf(stderr, "Buffer sizes too large\n");
800 ffmpeg_exit(1);
801 }
802
803 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
804 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
805 if (!audio_buf || !audio_out){
806 fprintf(stderr, "Out of memory in do_audio_out\n");
807 ffmpeg_exit(1);
808 }
809
810 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
811 ost->audio_resample = 1;
812
813 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
814 ost->resample_channels != dec->channels ||
815 ost->resample_sample_rate != dec->sample_rate;
816
817 if ((ost->audio_resample && !ost->resample) || resample_changed) {
818 if (resample_changed) {
819 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",
820 ist->file_index, ist->st->index,
821 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
822 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
823 ost->resample_sample_fmt = dec->sample_fmt;
824 ost->resample_channels = dec->channels;
825 ost->resample_sample_rate = dec->sample_rate;
826 if (ost->resample)
827 audio_resample_close(ost->resample);
828 }
829 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
830 if (audio_sync_method <= 1 &&
831 ost->resample_sample_fmt == enc->sample_fmt &&
832 ost->resample_channels == enc->channels &&
833 ost->resample_sample_rate == enc->sample_rate) {
834 ost->resample = NULL;
835 ost->audio_resample = 0;
836 } else if (ost->audio_resample) {
837 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
838 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
839 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
840 enc->sample_rate, dec->sample_rate,
841 enc->sample_fmt, dec->sample_fmt,
842 16, 10, 0, 0.8);
843 if (!ost->resample) {
844 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
845 dec->channels, dec->sample_rate,
846 enc->channels, enc->sample_rate);
847 ffmpeg_exit(1);
848 }
849 }
850 }
851
852 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
853 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
854 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
855 if (ost->reformat_ctx)
856 av_audio_convert_free(ost->reformat_ctx);
857 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
858 dec->sample_fmt, 1, NULL, 0);
859 if (!ost->reformat_ctx) {
860 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
861 av_get_sample_fmt_name(dec->sample_fmt),
862 av_get_sample_fmt_name(enc->sample_fmt));
863 ffmpeg_exit(1);
864 }
865 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
866 }
867
868 if(audio_sync_method){
869 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
870 - av_fifo_size(ost->fifo)/(enc->channels * 2);
871 double idelta= delta*dec->sample_rate / enc->sample_rate;
872 int byte_delta= ((int)idelta)*2*dec->channels;
873
874 //FIXME resample delay
875 if(fabs(delta) > 50){
876 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
877 if(byte_delta < 0){
878 byte_delta= FFMAX(byte_delta, -size);
879 size += byte_delta;
880 buf -= byte_delta;
881 if(verbose > 2)
882 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
883 if(!size)
884 return;
885 ist->is_start=0;
886 }else{
887 static uint8_t *input_tmp= NULL;
888 input_tmp= av_realloc(input_tmp, byte_delta + size);
889
890 if(byte_delta > allocated_for_size - size){
891 allocated_for_size= byte_delta + (int64_t)size;
892 goto need_realloc;
893 }
894 ist->is_start=0;
895
896 memset(input_tmp, 0, byte_delta);
897 memcpy(input_tmp + byte_delta, buf, size);
898 buf= input_tmp;
899 size += byte_delta;
900 if(verbose > 2)
901 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
902 }
903 }else if(audio_sync_method>1){
904 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
905 av_assert0(ost->audio_resample);
906 if(verbose > 2)
907 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
908 // 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));
909 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
910 }
911 }
912 }else
913 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
914 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
915
916 if (ost->audio_resample) {
917 buftmp = audio_buf;
918 size_out = audio_resample(ost->resample,
919 (short *)buftmp, (short *)buf,
920 size / (dec->channels * isize));
921 size_out = size_out * enc->channels * osize;
922 } else {
923 buftmp = buf;
924 size_out = size;
925 }
926
927 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
928 const void *ibuf[6]= {buftmp};
929 void *obuf[6]= {audio_buf};
930 int istride[6]= {isize};
931 int ostride[6]= {osize};
932 int len= size_out/istride[0];
933 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
934 printf("av_audio_convert() failed\n");
935 if (exit_on_error)
936 ffmpeg_exit(1);
937 return;
938 }
939 buftmp = audio_buf;
940 size_out = len*osize;
941 }
942
943 /* now encode as many frames as possible */
944 if (enc->frame_size > 1) {
945 /* output resampled raw samples */
946 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
947 fprintf(stderr, "av_fifo_realloc2() failed\n");
948 ffmpeg_exit(1);
949 }
950 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
951
952 frame_bytes = enc->frame_size * osize * enc->channels;
953
954 while (av_fifo_size(ost->fifo) >= frame_bytes) {
955 AVPacket pkt;
956 av_init_packet(&pkt);
957
958 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
959
960 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
961
962 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
963 (short *)audio_buf);
964 if (ret < 0) {
965 fprintf(stderr, "Audio encoding failed\n");
966 ffmpeg_exit(1);
967 }
968 audio_size += ret;
969 pkt.stream_index= ost->index;
970 pkt.data= audio_out;
971 pkt.size= ret;
972 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
973 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
974 pkt.flags |= AV_PKT_FLAG_KEY;
975 write_frame(s, &pkt, enc, ost->bitstream_filters);
976
977 ost->sync_opts += enc->frame_size;
978 }
979 } else {
980 AVPacket pkt;
981 av_init_packet(&pkt);
982
983 ost->sync_opts += size_out / (osize * enc->channels);
984
985 /* output a pcm frame */
986 /* determine the size of the coded buffer */
987 size_out /= osize;
988 if (coded_bps)
989 size_out = size_out*coded_bps/8;
990
991 if(size_out > audio_out_size){
992 fprintf(stderr, "Internal error, buffer size too small\n");
993 ffmpeg_exit(1);
994 }
995
996 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
997 ret = avcodec_encode_audio(enc, audio_out, size_out,
998 (short *)buftmp);
999 if (ret < 0) {
1000 fprintf(stderr, "Audio encoding failed\n");
1001 ffmpeg_exit(1);
1002 }
1003 audio_size += ret;
1004 pkt.stream_index= ost->index;
1005 pkt.data= audio_out;
1006 pkt.size= ret;
1007 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1008 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1009 pkt.flags |= AV_PKT_FLAG_KEY;
1010 write_frame(s, &pkt, enc, ost->bitstream_filters);
1011 }
1012 }
1013
1014 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1015 {
1016 AVCodecContext *dec;
1017 AVPicture *picture2;
1018 AVPicture picture_tmp;
1019 uint8_t *buf = 0;
1020
1021 dec = ist->st->codec;
1022
1023 /* deinterlace : must be done before any resize */
1024 if (do_deinterlace) {
1025 int size;
1026
1027 /* create temporary picture */
1028 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1029 buf = av_malloc(size);
1030 if (!buf)
1031 return;
1032
1033 picture2 = &picture_tmp;
1034 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1035
1036 if(avpicture_deinterlace(picture2, picture,
1037 dec->pix_fmt, dec->width, dec->height) < 0) {
1038 /* if error, do not deinterlace */
1039 fprintf(stderr, "Deinterlacing failed\n");
1040 av_free(buf);
1041 buf = NULL;
1042 picture2 = picture;
1043 }
1044 } else {
1045 picture2 = picture;
1046 }
1047
1048 if (picture != picture2)
1049 *picture = *picture2;
1050 *bufp = buf;
1051 }
1052
1053 /* we begin to correct av delay at this threshold */
1054 #define AV_DELAY_MAX 0.100
1055
1056 static void do_subtitle_out(AVFormatContext *s,
1057 OutputStream *ost,
1058 InputStream *ist,
1059 AVSubtitle *sub,
1060 int64_t pts)
1061 {
1062 static uint8_t *subtitle_out = NULL;
1063 int subtitle_out_max_size = 1024 * 1024;
1064 int subtitle_out_size, nb, i;
1065 AVCodecContext *enc;
1066 AVPacket pkt;
1067
1068 if (pts == AV_NOPTS_VALUE) {
1069 fprintf(stderr, "Subtitle packets must have a pts\n");
1070 if (exit_on_error)
1071 ffmpeg_exit(1);
1072 return;
1073 }
1074
1075 enc = ost->st->codec;
1076
1077 if (!subtitle_out) {
1078 subtitle_out = av_malloc(subtitle_out_max_size);
1079 }
1080
1081 /* Note: DVB subtitle need one packet to draw them and one other
1082 packet to clear them */
1083 /* XXX: signal it in the codec context ? */
1084 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1085 nb = 2;
1086 else
1087 nb = 1;
1088
1089 for(i = 0; i < nb; i++) {
1090 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1091 // start_display_time is required to be 0
1092 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1093 sub->end_display_time -= sub->start_display_time;
1094 sub->start_display_time = 0;
1095 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1096 subtitle_out_max_size, sub);
1097 if (subtitle_out_size < 0) {
1098 fprintf(stderr, "Subtitle encoding failed\n");
1099 ffmpeg_exit(1);
1100 }
1101
1102 av_init_packet(&pkt);
1103 pkt.stream_index = ost->index;
1104 pkt.data = subtitle_out;
1105 pkt.size = subtitle_out_size;
1106 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1107 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1108 /* XXX: the pts correction is handled here. Maybe handling
1109 it in the codec would be better */
1110 if (i == 0)
1111 pkt.pts += 90 * sub->start_display_time;
1112 else
1113 pkt.pts += 90 * sub->end_display_time;
1114 }
1115 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1116 }
1117 }
1118
1119 static int bit_buffer_size= 1024*256;
1120 static uint8_t *bit_buffer= NULL;
1121
1122 static void do_video_out(AVFormatContext *s,
1123 OutputStream *ost,
1124 InputStream *ist,
1125 AVFrame *in_picture,
1126 int *frame_size, float quality)
1127 {
1128 int nb_frames, i, ret, resample_changed;
1129 AVFrame *final_picture, *formatted_picture;
1130 AVCodecContext *enc, *dec;
1131 double sync_ipts;
1132
1133 enc = ost->st->codec;
1134 dec = ist->st->codec;
1135
1136 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1137
1138 /* by default, we output a single frame */
1139 nb_frames = 1;
1140
1141 *frame_size = 0;
1142
1143 if(video_sync_method){
1144 double vdelta = sync_ipts - ost->sync_opts;
1145 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1146 if (vdelta < -1.1)
1147 nb_frames = 0;
1148 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1149 if(vdelta<=-0.6){
1150 nb_frames=0;
1151 }else if(vdelta>0.6)
1152 ost->sync_opts= lrintf(sync_ipts);
1153 }else if (vdelta > 1.1)
1154 nb_frames = lrintf(vdelta);
1155 //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);
1156 if (nb_frames == 0){
1157 ++nb_frames_drop;
1158 if (verbose>2)
1159 fprintf(stderr, "*** drop!\n");
1160 }else if (nb_frames > 1) {
1161 nb_frames_dup += nb_frames - 1;
1162 if (verbose>2)
1163 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1164 }
1165 }else
1166 ost->sync_opts= lrintf(sync_ipts);
1167
1168 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1169 if (nb_frames <= 0)
1170 return;
1171
1172 formatted_picture = in_picture;
1173 final_picture = formatted_picture;
1174
1175 resample_changed = ost->resample_width != dec->width ||
1176 ost->resample_height != dec->height ||
1177 ost->resample_pix_fmt != dec->pix_fmt;
1178
1179 if (resample_changed) {
1180 av_log(NULL, AV_LOG_INFO,
1181 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1182 ist->file_index, ist->st->index,
1183 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1184 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1185 if(!ost->video_resample)
1186 ffmpeg_exit(1);
1187 }
1188
1189 #if !CONFIG_AVFILTER
1190 if (ost->video_resample) {
1191 final_picture = &ost->pict_tmp;
1192 if (resample_changed) {
1193 /* initialize a new scaler context */
1194 sws_freeContext(ost->img_resample_ctx);
1195 ost->img_resample_ctx = sws_getContext(
1196 ist->st->codec->width,
1197 ist->st->codec->height,
1198 ist->st->codec->pix_fmt,
1199 ost->st->codec->width,
1200 ost->st->codec->height,
1201 ost->st->codec->pix_fmt,
1202 ost->sws_flags, NULL, NULL, NULL);
1203 if (ost->img_resample_ctx == NULL) {
1204 fprintf(stderr, "Cannot get resampling context\n");
1205 ffmpeg_exit(1);
1206 }
1207 }
1208 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1209 0, ost->resample_height, final_picture->data, final_picture->linesize);
1210 }
1211 #endif
1212
1213 /* duplicates frame if needed */
1214 for(i=0;i<nb_frames;i++) {
1215 AVPacket pkt;
1216 av_init_packet(&pkt);
1217 pkt.stream_index= ost->index;
1218
1219 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1220 /* raw pictures are written as AVPicture structure to
1221 avoid any copies. We support temorarily the older
1222 method. */
1223 AVFrame* old_frame = enc->coded_frame;
1224 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1225 pkt.data= (uint8_t *)final_picture;
1226 pkt.size= sizeof(AVPicture);
1227 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1228 pkt.flags |= AV_PKT_FLAG_KEY;
1229
1230 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1231 enc->coded_frame = old_frame;
1232 } else {
1233 AVFrame big_picture;
1234
1235 big_picture= *final_picture;
1236 /* better than nothing: use input picture interlaced
1237 settings */
1238 big_picture.interlaced_frame = in_picture->interlaced_frame;
1239 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1240 if(top_field_first == -1)
1241 big_picture.top_field_first = in_picture->top_field_first;
1242 else
1243 big_picture.top_field_first = top_field_first;
1244 }
1245
1246 /* handles sameq here. This is not correct because it may
1247 not be a global option */
1248 big_picture.quality = quality;
1249 if(!me_threshold)
1250 big_picture.pict_type = 0;
1251 // big_picture.pts = AV_NOPTS_VALUE;
1252 big_picture.pts= ost->sync_opts;
1253 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1254 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1255 if (ost->forced_kf_index < ost->forced_kf_count &&
1256 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1257 big_picture.pict_type = AV_PICTURE_TYPE_I;
1258 ost->forced_kf_index++;
1259 }
1260 ret = avcodec_encode_video(enc,
1261 bit_buffer, bit_buffer_size,
1262 &big_picture);
1263 if (ret < 0) {
1264 fprintf(stderr, "Video encoding failed\n");
1265 ffmpeg_exit(1);
1266 }
1267
1268 if(ret>0){
1269 pkt.data= bit_buffer;
1270 pkt.size= ret;
1271 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1272 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1273 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1274 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1275 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1276
1277 if(enc->coded_frame->key_frame)
1278 pkt.flags |= AV_PKT_FLAG_KEY;
1279 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1280 *frame_size = ret;
1281 video_size += ret;
1282 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1283 // enc->frame_number-1, ret, enc->pict_type);
1284 /* if two pass, output log */
1285 if (ost->logfile && enc->stats_out) {
1286 fprintf(ost->logfile, "%s", enc->stats_out);
1287 }
1288 }
1289 }
1290 ost->sync_opts++;
1291 ost->frame_number++;
1292 }
1293 }
1294
1295 static double psnr(double d){
1296 return -10.0*log(d)/log(10.0);
1297 }
1298
1299 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1300 int frame_size)
1301 {
1302 AVCodecContext *enc;
1303 int frame_number;
1304 double ti1, bitrate, avg_bitrate;
1305
1306 /* this is executed just the first time do_video_stats is called */
1307 if (!vstats_file) {
1308 vstats_file = fopen(vstats_filename, "w");
1309 if (!vstats_file) {
1310 perror("fopen");
1311 ffmpeg_exit(1);
1312 }
1313 }
1314
1315 enc = ost->st->codec;
1316 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1317 frame_number = ost->frame_number;
1318 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1319 if (enc->flags&CODEC_FLAG_PSNR)
1320 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1321
1322 fprintf(vstats_file,"f_size= %6d ", frame_size);
1323 /* compute pts value */
1324 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1325 if (ti1 < 0.01)
1326 ti1 = 0.01;
1327
1328 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1329 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1330 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1331 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1332 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1333 }
1334 }
1335
1336 static void print_report(AVFormatContext **output_files,
1337 OutputStream **ost_table, int nb_ostreams,
1338 int is_last_report)
1339 {
1340 char buf[1024];
1341 OutputStream *ost;
1342 AVFormatContext *oc;
1343 int64_t total_size;
1344 AVCodecContext *enc;
1345 int frame_number, vid, i;
1346 double bitrate, ti1, pts;
1347 static int64_t last_time = -1;
1348 static int qp_histogram[52];
1349
1350 if (!is_last_report) {
1351 int64_t cur_time;
1352 /* display the report every 0.5 seconds */
1353 cur_time = av_gettime();
1354 if (last_time == -1) {
1355 last_time = cur_time;
1356 return;
1357 }
1358 if ((cur_time - last_time) < 500000)
1359 return;
1360 last_time = cur_time;
1361 }
1362
1363
1364 oc = output_files[0];
1365
1366 total_size = avio_size(oc->pb);
1367 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1368 total_size= avio_tell(oc->pb);
1369
1370 buf[0] = '\0';
1371 ti1 = 1e10;
1372 vid = 0;
1373 for(i=0;i<nb_ostreams;i++) {
1374 float q = -1;
1375 ost = ost_table[i];
1376 enc = ost->st->codec;
1377 if (!ost->st->stream_copy && enc->coded_frame)
1378 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1379 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1380 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1381 }
1382 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1383 float t = (av_gettime()-timer_start) / 1000000.0;
1384
1385 frame_number = ost->frame_number;
1386 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1387 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1388 if(is_last_report)
1389 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1390 if(qp_hist){
1391 int j;
1392 int qp = lrintf(q);
1393 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1394 qp_histogram[qp]++;
1395 for(j=0; j<32; j++)
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1397 }
1398 if (enc->flags&CODEC_FLAG_PSNR){
1399 int j;
1400 double error, error_sum=0;
1401 double scale, scale_sum=0;
1402 char type[3]= {'Y','U','V'};
1403 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1404 for(j=0; j<3; j++){
1405 if(is_last_report){
1406 error= enc->error[j];
1407 scale= enc->width*enc->height*255.0*255.0*frame_number;
1408 }else{
1409 error= enc->coded_frame->error[j];
1410 scale= enc->width*enc->height*255.0*255.0;
1411 }
1412 if(j) scale/=4;
1413 error_sum += error;
1414 scale_sum += scale;
1415 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1416 }
1417 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1418 }
1419 vid = 1;
1420 }
1421 /* compute min output value */
1422 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1423 if ((pts < ti1) && (pts > 0))
1424 ti1 = pts;
1425 }
1426 if (ti1 < 0.01)
1427 ti1 = 0.01;
1428
1429 if (verbose > 0 || is_last_report) {
1430 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1431
1432 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1433 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1434 (double)total_size / 1024, ti1, bitrate);
1435
1436 if (nb_frames_dup || nb_frames_drop)
1437 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1438 nb_frames_dup, nb_frames_drop);
1439
1440 if (verbose >= 0)
1441 fprintf(stderr, "%s \r", buf);
1442
1443 fflush(stderr);
1444 }
1445
1446 if (is_last_report && verbose >= 0){
1447 int64_t raw= audio_size + video_size + extra_size;
1448 fprintf(stderr, "\n");
1449 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1450 video_size/1024.0,
1451 audio_size/1024.0,
1452 extra_size/1024.0,
1453 100.0*(total_size - raw)/raw
1454 );
1455 }
1456 }
1457
1458 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1459 {
1460 int fill_char = 0x00;
1461 if (sample_fmt == AV_SAMPLE_FMT_U8)
1462 fill_char = 0x80;
1463 memset(buf, fill_char, size);
1464 }
1465
1466 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1467 static int output_packet(InputStream *ist, int ist_index,
1468 OutputStream **ost_table, int nb_ostreams,
1469 const AVPacket *pkt)
1470 {
1471 AVFormatContext *os;
1472 OutputStream *ost;
1473 int ret, i;
1474 int got_output;
1475 AVFrame picture;
1476 void *buffer_to_free = NULL;
1477 static unsigned int samples_size= 0;
1478 AVSubtitle subtitle, *subtitle_to_free;
1479 int64_t pkt_pts = AV_NOPTS_VALUE;
1480 #if CONFIG_AVFILTER
1481 int frame_available;
1482 #endif
1483 float quality;
1484
1485 AVPacket avpkt;
1486 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1487
1488 if(ist->next_pts == AV_NOPTS_VALUE)
1489 ist->next_pts= ist->pts;
1490
1491 if (pkt == NULL) {
1492 /* EOF handling */
1493 av_init_packet(&avpkt);
1494 avpkt.data = NULL;
1495 avpkt.size = 0;
1496 goto handle_eof;
1497 } else {
1498 avpkt = *pkt;
1499 }
1500
1501 if(pkt->dts != AV_NOPTS_VALUE)
1502 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1503 if(pkt->pts != AV_NOPTS_VALUE)
1504 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1505
1506 //while we have more to decode or while the decoder did output something on EOF
1507 while (avpkt.size > 0 || (!pkt && got_output)) {
1508 uint8_t *data_buf, *decoded_data_buf;
1509 int data_size, decoded_data_size;
1510 handle_eof:
1511 ist->pts= ist->next_pts;
1512
1513 if(avpkt.size && avpkt.size != pkt->size &&
1514 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1515 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1516 ist->showed_multi_packet_warning=1;
1517 }
1518
1519 /* decode the packet if needed */
1520 decoded_data_buf = NULL; /* fail safe */
1521 decoded_data_size= 0;
1522 data_buf = avpkt.data;
1523 data_size = avpkt.size;
1524 subtitle_to_free = NULL;
1525 if (ist->decoding_needed) {
1526 switch(ist->st->codec->codec_type) {
1527 case AVMEDIA_TYPE_AUDIO:{
1528 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1529 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1530 av_free(samples);
1531 samples= av_malloc(samples_size);
1532 }
1533 decoded_data_size= samples_size;
1534 /* XXX: could avoid copy if PCM 16 bits with same
1535 endianness as CPU */
1536 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1537 &avpkt);
1538 if (ret < 0)
1539 goto fail_decode;
1540 avpkt.data += ret;
1541 avpkt.size -= ret;
1542 data_size = ret;
1543 got_output = decoded_data_size > 0;
1544 /* Some bug in mpeg audio decoder gives */
1545 /* decoded_data_size < 0, it seems they are overflows */
1546 if (!got_output) {
1547 /* no audio frame */
1548 continue;
1549 }
1550 decoded_data_buf = (uint8_t *)samples;
1551 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1552 (ist->st->codec->sample_rate * ist->st->codec->channels);
1553 break;}
1554 case AVMEDIA_TYPE_VIDEO:
1555 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1556 /* XXX: allocate picture correctly */
1557 avcodec_get_frame_defaults(&picture);
1558 avpkt.pts = pkt_pts;
1559 avpkt.dts = ist->pts;
1560 pkt_pts = AV_NOPTS_VALUE;
1561
1562 ret = avcodec_decode_video2(ist->st->codec,
1563 &picture, &got_output, &avpkt);
1564 quality = same_quality ? picture.quality : 0;
1565 if (ret < 0)
1566 goto fail_decode;
1567 if (!got_output) {
1568 /* no picture yet */
1569 goto discard_packet;
1570 }
1571 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1572 if (ist->st->codec->time_base.num != 0) {
1573 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1574 ist->next_pts += ((int64_t)AV_TIME_BASE *
1575 ist->st->codec->time_base.num * ticks) /
1576 ist->st->codec->time_base.den;
1577 }
1578 avpkt.size = 0;
1579 buffer_to_free = NULL;
1580 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1581 break;
1582 case AVMEDIA_TYPE_SUBTITLE:
1583 ret = avcodec_decode_subtitle2(ist->st->codec,
1584 &subtitle, &got_output, &avpkt);
1585 if (ret < 0)
1586 goto fail_decode;
1587 if (!got_output) {
1588 goto discard_packet;
1589 }
1590 subtitle_to_free = &subtitle;
1591 avpkt.size = 0;
1592 break;
1593 default:
1594 goto fail_decode;
1595 }
1596 } else {
1597 switch(ist->st->codec->codec_type) {
1598 case AVMEDIA_TYPE_AUDIO:
1599 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1600 ist->st->codec->sample_rate;
1601 break;
1602 case AVMEDIA_TYPE_VIDEO:
1603 if (ist->st->codec->time_base.num != 0) {
1604 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1605 ist->next_pts += ((int64_t)AV_TIME_BASE *
1606 ist->st->codec->time_base.num * ticks) /
1607 ist->st->codec->time_base.den;
1608 }
1609 break;
1610 }
1611 ret = avpkt.size;
1612 avpkt.size = 0;
1613 }
1614
1615 #if CONFIG_AVFILTER
1616 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1617 for (i = 0; i < nb_ostreams; i++) {
1618 ost = ost_table[i];
1619 if (ost->input_video_filter && ost->source_index == ist_index) {
1620 AVRational sar;
1621 if (ist->st->sample_aspect_ratio.num)
1622 sar = ist->st->sample_aspect_ratio;
1623 else
1624 sar = ist->st->codec->sample_aspect_ratio;
1625 // add it to be filtered
1626 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1627 ist->pts,
1628 sar);
1629 }
1630 }
1631 }
1632 #endif
1633
1634 // preprocess audio (volume)
1635 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1636 if (audio_volume != 256) {
1637 short *volp;
1638 volp = samples;
1639 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1640 int v = ((*volp) * audio_volume + 128) >> 8;
1641 if (v < -32768) v = -32768;
1642 if (v > 32767) v = 32767;
1643 *volp++ = v;
1644 }
1645 }
1646 }
1647
1648 /* frame rate emulation */
1649 if (rate_emu) {
1650 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1651 int64_t now = av_gettime() - ist->start;
1652 if (pts > now)
1653 usleep(pts - now);
1654 }
1655 /* if output time reached then transcode raw format,
1656 encode packets and output them */
1657 if (start_time == 0 || ist->pts >= start_time)
1658 for(i=0;i<nb_ostreams;i++) {
1659 int frame_size;
1660
1661 ost = ost_table[i];
1662 if (ost->source_index == ist_index) {
1663 #if CONFIG_AVFILTER
1664 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1665 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1666 while (frame_available) {
1667 AVRational ist_pts_tb;
1668 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1669 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1670 if (ost->picref)
1671 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1672 #endif
1673 os = output_files[ost->file_index];
1674
1675 /* set the input output pts pairs */
1676 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1677
1678 if (ost->encoding_needed) {
1679 av_assert0(ist->decoding_needed);
1680 switch(ost->st->codec->codec_type) {
1681 case AVMEDIA_TYPE_AUDIO:
1682 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1683 break;
1684 case AVMEDIA_TYPE_VIDEO:
1685 #if CONFIG_AVFILTER
1686 if (ost->picref->video && !ost->frame_aspect_ratio)
1687 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1688 #endif
1689 do_video_out(os, ost, ist, &picture, &frame_size,
1690 same_quality ? quality : ost->st->codec->global_quality);
1691 if (vstats_filename && frame_size)
1692 do_video_stats(os, ost, frame_size);
1693 break;
1694 case AVMEDIA_TYPE_SUBTITLE:
1695 do_subtitle_out(os, ost, ist, &subtitle,
1696 pkt->pts);
1697 break;
1698 default:
1699 abort();
1700 }
1701 } else {
1702 AVFrame avframe; //FIXME/XXX remove this
1703 AVPacket opkt;
1704 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1705
1706 av_init_packet(&opkt);
1707
1708 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1709 #if !CONFIG_AVFILTER
1710 continue;
1711 #else
1712 goto cont;
1713 #endif
1714
1715 /* no reencoding needed : output the packet directly */
1716 /* force the input stream PTS */
1717
1718 avcodec_get_frame_defaults(&avframe);
1719 ost->st->codec->coded_frame= &avframe;
1720 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1721
1722 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1723 audio_size += data_size;
1724 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1725 video_size += data_size;
1726 ost->sync_opts++;
1727 }
1728
1729 opkt.stream_index= ost->index;
1730 if(pkt->pts != AV_NOPTS_VALUE)
1731 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1732 else
1733 opkt.pts= AV_NOPTS_VALUE;
1734
1735 if (pkt->dts == AV_NOPTS_VALUE)
1736 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1737 else
1738 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1739 opkt.dts -= ost_tb_start_time;
1740
1741 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1742 opkt.flags= pkt->flags;
1743
1744 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1745 if( ost->st->codec->codec_id != CODEC_ID_H264
1746 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1747 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1748 ) {
1749 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1750 opkt.destruct= av_destruct_packet;
1751 } else {
1752 opkt.data = data_buf;
1753 opkt.size = data_size;
1754 }
1755
1756 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1757 ost->st->codec->frame_number++;
1758 ost->frame_number++;
1759 av_free_packet(&opkt);
1760 }
1761 #if CONFIG_AVFILTER
1762 cont:
1763 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1764 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1765 if (ost->picref)
1766 avfilter_unref_buffer(ost->picref);
1767 }
1768 #endif
1769 }
1770 }
1771
1772 av_free(buffer_to_free);
1773 /* XXX: allocate the subtitles in the codec ? */
1774 if (subtitle_to_free) {
1775 avsubtitle_free(subtitle_to_free);
1776 subtitle_to_free = NULL;
1777 }
1778 }
1779 discard_packet:
1780 if (pkt == NULL) {
1781 /* EOF handling */
1782
1783 for(i=0;i<nb_ostreams;i++) {
1784 ost = ost_table[i];
1785 if (ost->source_index == ist_index) {
1786 AVCodecContext *enc= ost->st->codec;
1787 os = output_files[ost->file_index];
1788
1789 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1790 continue;
1791 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1792 continue;
1793
1794 if (ost->encoding_needed) {
1795 for(;;) {
1796 AVPacket pkt;
1797 int fifo_bytes;
1798 av_init_packet(&pkt);
1799 pkt.stream_index= ost->index;
1800
1801 switch(ost->st->codec->codec_type) {
1802 case AVMEDIA_TYPE_AUDIO:
1803 fifo_bytes = av_fifo_size(ost->fifo);
1804 ret = 0;
1805 /* encode any samples remaining in fifo */
1806 if (fifo_bytes > 0) {
1807 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1808 int fs_tmp = enc->frame_size;
1809
1810 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1811 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1812 enc->frame_size = fifo_bytes / (osize * enc->channels);
1813 } else { /* pad */
1814 int frame_bytes = enc->frame_size*osize*enc->channels;
1815 if (allocated_audio_buf_size < frame_bytes)
1816 ffmpeg_exit(1);
1817 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1818 }
1819
1820 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1821 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1822 ost->st->time_base.num, enc->sample_rate);
1823 enc->frame_size = fs_tmp;
1824 }
1825 if(ret <= 0) {
1826 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1827 }
1828 if (ret < 0) {
1829 fprintf(stderr, "Audio encoding failed\n");
1830 ffmpeg_exit(1);
1831 }
1832 audio_size += ret;
1833 pkt.flags |= AV_PKT_FLAG_KEY;
1834 break;
1835 case AVMEDIA_TYPE_VIDEO:
1836 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1837 if (ret < 0) {
1838 fprintf(stderr, "Video encoding failed\n");
1839 ffmpeg_exit(1);
1840 }
1841 video_size += ret;
1842 if(enc->coded_frame && enc->coded_frame->key_frame)
1843 pkt.flags |= AV_PKT_FLAG_KEY;
1844 if (ost->logfile && enc->stats_out) {
1845 fprintf(ost->logfile, "%s", enc->stats_out);
1846 }
1847 break;
1848 default:
1849 ret=-1;
1850 }
1851
1852 if(ret<=0)
1853 break;
1854 pkt.data= bit_buffer;
1855 pkt.size= ret;
1856 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1857 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1858 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1859 }
1860 }
1861 }
1862 }
1863 }
1864
1865 return 0;
1866 fail_decode:
1867 return -1;
1868 }
1869
1870 static void print_sdp(AVFormatContext **avc, int n)
1871 {
1872 char sdp[2048];
1873
1874 av_sdp_create(avc, n, sdp, sizeof(sdp));
1875 printf("SDP:\n%s\n", sdp);
1876 fflush(stdout);
1877 }
1878
1879 static int copy_chapters(int infile, int outfile)
1880 {
1881 AVFormatContext *is = input_files[infile].ctx;
1882 AVFormatContext *os = output_files[outfile];
1883 int i;
1884
1885 for (i = 0; i < is->nb_chapters; i++) {
1886 AVChapter *in_ch = is->chapters[i], *out_ch;
1887 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1888 AV_TIME_BASE_Q, in_ch->time_base);
1889 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1890 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1891
1892
1893 if (in_ch->end < ts_off)
1894 continue;
1895 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1896 break;
1897
1898 out_ch = av_mallocz(sizeof(AVChapter));
1899 if (!out_ch)
1900 return AVERROR(ENOMEM);
1901
1902 out_ch->id = in_ch->id;
1903 out_ch->time_base = in_ch->time_base;
1904 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1905 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1906
1907 if (metadata_chapters_autocopy)
1908 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1909
1910 os->nb_chapters++;
1911 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1912 if (!os->chapters)
1913 return AVERROR(ENOMEM);
1914 os->chapters[os->nb_chapters - 1] = out_ch;
1915 }
1916 return 0;
1917 }
1918
1919 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1920 AVCodecContext *avctx)
1921 {
1922 char *p;
1923 int n = 1, i;
1924 int64_t t;
1925
1926 for (p = kf; *p; p++)
1927 if (*p == ',')
1928 n++;
1929 ost->forced_kf_count = n;
1930 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1931 if (!ost->forced_kf_pts) {
1932 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1933 ffmpeg_exit(1);
1934 }
1935 for (i = 0; i < n; i++) {
1936 p = i ? strchr(p, ',') + 1 : kf;
1937 t = parse_time_or_die("force_key_frames", p, 1);
1938 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1939 }
1940 }
1941
1942 /*
1943 * The following code is the main loop of the file converter
1944 */
1945 static int transcode(AVFormatContext **output_files,
1946 int nb_output_files,
1947 InputFile *input_files,
1948 int nb_input_files,
1949 StreamMap *stream_maps, int nb_stream_maps)
1950 {
1951 int ret = 0, i, j, k, n, nb_ostreams = 0;
1952 AVFormatContext *is, *os;
1953 AVCodecContext *codec, *icodec;
1954 OutputStream *ost, **ost_table = NULL;
1955 InputStream *ist;
1956 char error[1024];
1957 int want_sdp = 1;
1958 uint8_t no_packet[MAX_FILES]={0};
1959 int no_packet_count=0;
1960
1961 if (rate_emu)
1962 for (i = 0; i < nb_input_streams; i++)
1963 input_streams[i].start = av_gettime();
1964
1965 /* output stream init */
1966 nb_ostreams = 0;
1967 for(i=0;i<nb_output_files;i++) {
1968 os = output_files[i];
1969 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1970 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1971 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1972 ret = AVERROR(EINVAL);
1973 goto fail;
1974 }
1975 nb_ostreams += os->nb_streams;
1976 }
1977 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1978 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1979 ret = AVERROR(EINVAL);
1980 goto fail;
1981 }
1982
1983 /* Sanity check the mapping args -- do the input files & streams exist? */
1984 for(i=0;i<nb_stream_maps;i++) {
1985 int fi = stream_maps[i].file_index;
1986 int si = stream_maps[i].stream_index;
1987
1988 if (fi < 0 || fi > nb_input_files - 1 ||
1989 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1990 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1991 ret = AVERROR(EINVAL);
1992 goto fail;
1993 }
1994 fi = stream_maps[i].sync_file_index;
1995 si = stream_maps[i].sync_stream_index;
1996 if (fi < 0 || fi > nb_input_files - 1 ||
1997 si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1998 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1999 ret = AVERROR(EINVAL);
2000 goto fail;
2001 }
2002 }
2003
2004 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2005 if (!ost_table)
2006 goto fail;
2007 n = 0;
2008 for(k=0;k<nb_output_files;k++) {
2009 os = output_files[k];
2010 for(i=0;i<os->nb_streams;i++,n++) {
2011 int found;
2012 ost = ost_table[n] = output_streams_for_file[k][i];
2013 ost->st = os->streams[i];
2014 if (nb_stream_maps > 0) {
2015 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2016 stream_maps[n].stream_index;
2017
2018 /* Sanity check that the stream types match */
2019 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2020 int i= ost->file_index;
2021 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2022 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2023 stream_maps[n].file_index, stream_maps[n].stream_index,
2024 ost->file_index, ost->index);
2025 ffmpeg_exit(1);
2026 }
2027
2028 } else {
2029 int best_nb_frames=-1;
2030 /* get corresponding input stream index : we select the first one with the right type */
2031 found = 0;
2032 for (j = 0; j < nb_input_streams; j++) {
2033 int skip=0;
2034 ist = &input_streams[j];
2035 if(opt_programid){
2036 int pi,si;
2037 AVFormatContext *f = input_files[ist->file_index].ctx;
2038 skip=1;
2039 for(pi=0; pi<f->nb_programs; pi++){
2040 AVProgram *p= f->programs[pi];
2041 if(p->id == opt_programid)
2042 for(si=0; si<p->nb_stream_indexes; si++){
2043 if(f->streams[ p->stream_index[si] ] == ist->st)
2044 skip=0;
2045 }
2046 }
2047 }
2048 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2049 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2050 if(best_nb_frames < ist->st->codec_info_nb_frames){
2051 best_nb_frames= ist->st->codec_info_nb_frames;
2052 ost->source_index = j;
2053 found = 1;
2054 }
2055 }
2056 }
2057
2058 if (!found) {
2059 if(! opt_programid) {
2060 /* try again and reuse existing stream */
2061 for (j = 0; j < nb_input_streams; j++) {
2062 ist = &input_streams[j];
2063 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2064 && ist->st->discard != AVDISCARD_ALL) {
2065 ost->source_index = j;
2066 found = 1;
2067 }
2068 }
2069 }
2070 if (!found) {
2071 int i= ost->file_index;
2072 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2073 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2074 ost->file_index, ost->index);
2075 ffmpeg_exit(1);
2076 }
2077 }
2078 }
2079 ist = &input_streams[ost->source_index];
2080 ist->discard = 0;
2081 ost->sync_ist = (nb_stream_maps > 0) ?
2082 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2083 stream_maps[n].sync_stream_index] : ist;
2084 }
2085 }
2086
2087 /* for each output stream, we compute the right encoding parameters */
2088 for(i=0;i<nb_ostreams;i++) {
2089 ost = ost_table[i];
2090 os = output_files[ost->file_index];
2091 ist = &input_streams[ost->source_index];
2092
2093 codec = ost->st->codec;
2094 icodec = ist->st->codec;
2095
2096 if (metadata_streams_autocopy)
2097 av_dict_copy(&ost->st->metadata, ist->st->metadata,
2098 AV_DICT_DONT_OVERWRITE);
2099
2100 ost->st->disposition = ist->st->disposition;
2101 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2102 codec->chroma_sample_location = icodec->chroma_sample_location;
2103
2104 if (ost->st->stream_copy) {
2105 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2106
2107 if (extra_size > INT_MAX)
2108 goto fail;
2109
2110 /* if stream_copy is selected, no need to decode or encode */
2111 codec->codec_id = icodec->codec_id;
2112 codec->codec_type = icodec->codec_type;
2113
2114 if(!codec->codec_tag){
2115 if( !os->oformat->codec_tag
2116 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2117 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2118 codec->codec_tag = icodec->codec_tag;
2119 }
2120
2121 codec->bit_rate = icodec->bit_rate;
2122 codec->rc_max_rate = icodec->rc_max_rate;
2123 codec->rc_buffer_size = icodec->rc_buffer_size;
2124 codec->extradata= av_mallocz(extra_size);
2125 if (!codec->extradata)
2126 goto fail;
2127 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2128 codec->extradata_size= icodec->extradata_size;
2129 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){
2130 codec->time_base = icodec->time_base;
2131 codec->time_base.num *= icodec->ticks_per_frame;
2132 av_reduce(&codec->time_base.num, &codec->time_base.den,
2133 codec->time_base.num, codec->time_base.den, INT_MAX);
2134 }else
2135 codec->time_base = ist->st->time_base;
2136 switch(codec->codec_type) {
2137 case AVMEDIA_TYPE_AUDIO:
2138 if(audio_volume != 256) {
2139 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2140 ffmpeg_exit(1);
2141 }
2142 codec->channel_layout = icodec->channel_layout;
2143 codec->sample_rate = icodec->sample_rate;
2144 codec->channels = icodec->channels;
2145 codec->frame_size = icodec->frame_size;
2146 codec->audio_service_type = icodec->audio_service_type;
2147 codec->block_align= icodec->block_align;
2148 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2149 codec->block_align= 0;
2150 if(codec->codec_id == CODEC_ID_AC3)
2151 codec->block_align= 0;
2152 break;
2153 case AVMEDIA_TYPE_VIDEO:
2154 codec->pix_fmt = icodec->pix_fmt;
2155 codec->width = icodec->width;
2156 codec->height = icodec->height;
2157 codec->has_b_frames = icodec->has_b_frames;
2158 if (!codec->sample_aspect_ratio.num) {
2159 codec->sample_aspect_ratio =
2160 ost->st->sample_aspect_ratio =
2161 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2162 ist->st->codec->sample_aspect_ratio.num ?
2163 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2164 }
2165 break;
2166 case AVMEDIA_TYPE_SUBTITLE:
2167 codec->width = icodec->width;
2168 codec->height = icodec->height;
2169 break;
2170 case AVMEDIA_TYPE_DATA:
2171 break;
2172 default:
2173 abort();
2174 }
2175 } else {
2176 if (!ost->enc)
2177 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2178 switch(codec->codec_type) {
2179 case AVMEDIA_TYPE_AUDIO:
2180 ost->fifo= av_fifo_alloc(1024);
2181 if(!ost->fifo)
2182 goto fail;
2183 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2184 if (!codec->sample_rate) {
2185 codec->sample_rate = icodec->sample_rate;
2186 if (icodec->lowres)
2187 codec->sample_rate >>= icodec->lowres;
2188 }
2189 choose_sample_rate(ost->st, ost->enc);
2190 codec->time_base = (AVRational){1, codec->sample_rate};
2191 if (!codec->channels)
2192 codec->channels = icodec->channels;
2193 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2194 codec->channel_layout = 0;
2195 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2196 icodec->request_channels = codec->channels;
2197 ist->decoding_needed = 1;
2198 ost->encoding_needed = 1;
2199 ost->resample_sample_fmt = icodec->sample_fmt;
2200 ost->resample_sample_rate = icodec->sample_rate;
2201 ost->resample_channels = icodec->channels;
2202 break;
2203 case AVMEDIA_TYPE_VIDEO:
2204 if (codec->pix_fmt == PIX_FMT_NONE)
2205 codec->pix_fmt = icodec->pix_fmt;
2206 choose_pixel_fmt(ost->st, ost->enc);
2207
2208 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2209 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2210 ffmpeg_exit(1);
2211 }
2212 ost->video_resample = codec->width != icodec->width ||
2213 codec->height != icodec->height ||
2214 codec->pix_fmt != icodec->pix_fmt;
2215 if (ost->video_resample) {
2216 #if !CONFIG_AVFILTER
2217 avcodec_get_frame_defaults(&ost->pict_tmp);
2218 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2219 codec->width, codec->height)) {
2220 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2221 ffmpeg_exit(1);
2222 }
2223 ost->img_resample_ctx = sws_getContext(
2224 icodec->width,
2225 icodec->height,
2226 icodec->pix_fmt,
2227 codec->width,
2228 codec->height,
2229 codec->pix_fmt,
2230 ost->sws_flags, NULL, NULL, NULL);
2231 if (ost->img_resample_ctx == NULL) {
2232 fprintf(stderr, "Cannot get resampling context\n");
2233 ffmpeg_exit(1);
2234 }
2235 #endif
2236 codec->bits_per_raw_sample= 0;
2237 }
2238 if (!codec->width || !codec->height) {
2239 codec->width = icodec->width;
2240 codec->height = icodec->height;
2241 }
2242 ost->resample_height = icodec->height;
2243 ost->resample_width = icodec->width;
2244 ost->resample_pix_fmt= icodec->pix_fmt;
2245 ost->encoding_needed = 1;
2246 ist->decoding_needed = 1;
2247
2248 if (!ost->frame_rate.num)
2249 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2250 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2251 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2252 ost->frame_rate = ost->enc->supported_framerates[idx];
2253 }
2254 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2255
2256 #if CONFIG_AVFILTER
2257 if (configure_video_filters(ist, ost)) {
2258 fprintf(stderr, "Error opening filters!\n");
2259 exit(1);
2260 }
2261 #endif
2262 break;
2263 case AVMEDIA_TYPE_SUBTITLE:
2264 ost->encoding_needed = 1;
2265 ist->decoding_needed = 1;
2266 break;
2267 default:
2268 abort();
2269 break;
2270 }
2271 /* two pass mode */
2272 if (ost->encoding_needed &&
2273 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2274 char logfilename[1024];
2275 FILE *f;
2276
2277 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2278 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2279 i);
2280 if (codec->flags & CODEC_FLAG_PASS1) {
2281 f = fopen(logfilename, "wb");
2282 if (!f) {
2283 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2284 ffmpeg_exit(1);
2285 }
2286 ost->logfile = f;
2287 } else {
2288 char *logbuffer;
2289 size_t logbuffer_size;
2290 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2291 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2292 ffmpeg_exit(1);
2293 }
2294 codec->stats_in = logbuffer;
2295 }
2296 }
2297 }
2298 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2299 int size= codec->width * codec->height;
2300 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2301 }
2302 }
2303
2304 if (!bit_buffer)
2305 bit_buffer = av_malloc(bit_buffer_size);
2306 if (!bit_buffer) {
2307 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2308 bit_buffer_size);
2309 ret = AVERROR(ENOMEM);
2310 goto fail;
2311 }
2312
2313 /* open each encoder */
2314 for(i=0;i<nb_ostreams;i++) {
2315 ost = ost_table[i];
2316 if (ost->encoding_needed) {
2317 AVCodec *codec = ost->enc;
2318 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2319 if (!codec) {
2320 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2321 ost->st->codec->codec_id, ost->file_index, ost->index);
2322 ret = AVERROR(EINVAL);
2323 goto dump_format;
2324 }
2325 if (dec->subtitle_header) {
2326 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2327 if (!ost->st->codec->subtitle_header) {
2328 ret = AVERROR(ENOMEM);
2329 goto dump_format;
2330 }
2331 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2332 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2333 }
2334 if (avcodec_open(ost->st->codec, codec) < 0) {
2335 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2336 ost->file_index, ost->index);
2337 ret = AVERROR(EINVAL);
2338 goto dump_format;
2339 }
2340 extra_size += ost->st->codec->extradata_size;
2341 }
2342 }
2343
2344 /* open each decoder */
2345 for (i = 0; i < nb_input_streams; i++) {
2346 ist = &input_streams[i];
2347 if (ist->decoding_needed) {
2348 AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2349 if (!codec)
2350 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2351 if (!codec) {
2352 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2353 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2354 ret = AVERROR(EINVAL);
2355 goto dump_format;
2356 }
2357
2358 /* update requested sample format for the decoder based on the
2359 corresponding encoder sample format */
2360 for (j = 0; j < nb_ostreams; j++) {
2361 ost = ost_table[j];
2362 if (ost->source_index == i) {
2363 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2364 break;
2365 }
2366 }
2367
2368 if (avcodec_open(ist->st->codec, codec) < 0) {
2369 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2370 ist->file_index, ist->st->index);
2371 ret = AVERROR(EINVAL);
2372 goto dump_format;
2373 }
2374 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2375 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2376 }
2377 }
2378
2379 /* init pts */
2380 for (i = 0; i < nb_input_streams; i++) {
2381 AVStream *st;
2382 ist = &input_streams[i];
2383 st= ist->st;
2384 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2385 ist->next_pts = AV_NOPTS_VALUE;
2386 init_pts_correction(&ist->pts_ctx);
2387 ist->is_start = 1;
2388 }
2389
2390 /* set meta data information from input file if required */
2391 for (i=0;i<nb_meta_data_maps;i++) {
2392 AVFormatContext *files[2];
2393 AVDictionary **meta[2];
2394 int j;
2395
2396 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2397 if ((index) < 0 || (index) >= (nb_elems)) {\
2398 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2399 (desc), (index));\
2400 ret = AVERROR(EINVAL);\
2401 goto dump_format;\
2402 }
2403
2404 int out_file_index = meta_data_maps[i][0].file;
2405 int in_file_index = meta_data_maps[i][1].file;
2406 if (in_file_index < 0 || out_file_index < 0)
2407 continue;
2408 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2409 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2410
2411 files[0] = output_files[out_file_index];
2412 files[1] = input_files[in_file_index].ctx;
2413
2414 for (j = 0; j < 2; j++) {
2415 MetadataMap *map = &meta_data_maps[i][j];
2416
2417 switch (map->type) {
2418 case 'g':
2419 meta[j] = &files[j]->metadata;
2420 break;
2421 case 's':
2422 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2423 meta[j] = &files[j]->streams[map->index]->metadata;
2424 break;
2425 case 'c':
2426 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2427 meta[j] = &files[j]->chapters[map->index]->metadata;
2428 break;
2429 case 'p':
2430 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2431 meta[j] = &files[j]->programs[map->index]->metadata;
2432 break;
2433 }
2434 }
2435
2436 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2437 }
2438
2439 /* copy global metadata by default */
2440 if (metadata_global_autocopy) {
2441
2442 for (i = 0; i < nb_output_files; i++)
2443 av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2444 AV_DICT_DONT_OVERWRITE);
2445 }
2446
2447 /* copy chapters according to chapter maps */
2448 for (i = 0; i < nb_chapter_maps; i++) {
2449 int infile = chapter_maps[i].in_file;
2450 int outfile = chapter_maps[i].out_file;
2451
2452 if (infile < 0 || outfile < 0)
2453 continue;
2454 if (infile >= nb_input_files) {
2455 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2456 ret = AVERROR(EINVAL);
2457 goto dump_format;
2458 }
2459 if (outfile >= nb_output_files) {
2460 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2461 ret = AVERROR(EINVAL);
2462 goto dump_format;
2463 }
2464 copy_chapters(infile, outfile);
2465 }
2466
2467 /* copy chapters from the first input file that has them*/
2468 if (!nb_chapter_maps)
2469 for (i = 0; i < nb_input_files; i++) {
2470 if (!input_files[i].ctx->nb_chapters)
2471 continue;
2472
2473 for (j = 0; j < nb_output_files; j++)
2474 if ((ret = copy_chapters(i, j)) < 0)
2475 goto dump_format;
2476 break;
2477 }
2478
2479 /* open files and write file headers */
2480 for(i=0;i<nb_output_files;i++) {
2481 os = output_files[i];
2482 if (avformat_write_header(os, &output_opts[i]) < 0) {
2483 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2484 ret = AVERROR(EINVAL);
2485 goto dump_format;
2486 }
2487 assert_avoptions(output_opts[i]);
2488 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2489 want_sdp = 0;
2490 }
2491 }
2492
2493 dump_format:
2494 /* dump the file output parameters - cannot be done before in case
2495 of stream copy */
2496 for(i=0;i<nb_output_files;i++) {
2497 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2498 }
2499
2500 /* dump the stream mapping */
2501 if (verbose >= 0) {
2502 fprintf(stderr, "Stream mapping:\n");
2503 for(i=0;i<nb_ostreams;i++) {
2504 ost = ost_table[i];
2505 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2506 input_streams[ost->source_index].file_index,
2507 input_streams[ost->source_index].st->index,
2508 ost->file_index,
2509 ost->index);
2510 if (ost->sync_ist != &input_streams[ost->source_index])
2511 fprintf(stderr, " [sync #%d.%d]",
2512 ost->sync_ist->file_index,
2513 ost->sync_ist->st->index);
2514 fprintf(stderr, "\n");
2515 }
2516 }
2517
2518 if (ret) {
2519 fprintf(stderr, "%s\n", error);
2520 goto fail;
2521 }
2522
2523 if (want_sdp) {
2524 print_sdp(output_files, nb_output_files);
2525 }
2526
2527 if (verbose >= 0)
2528 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2529 term_init();
2530
2531 timer_start = av_gettime();
2532
2533 for(; received_sigterm == 0;) {
2534 int file_index, ist_index;
2535 AVPacket pkt;
2536 double ipts_min;
2537 double opts_min;
2538
2539 redo:
2540 ipts_min= 1e100;
2541 opts_min= 1e100;
2542
2543 /* select the stream that we must read now by looking at the
2544 smallest output pts */
2545 file_index = -1;
2546 for(i=0;i<nb_ostreams;i++) {
2547 double ipts, opts;
2548 ost = ost_table[i];
2549 os = output_files[ost->file_index];
2550 ist = &input_streams[ost->source_index];
2551 if(ist->is_past_recording_time || no_packet[ist->file_index])
2552 continue;
2553 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2554 ipts = (double)ist->pts;
2555 if (!input_files[ist->file_index].eof_reached){
2556 if(ipts < ipts_min) {
2557 ipts_min = ipts;
2558 if(input_sync ) file_index = ist->file_index;
2559 }
2560 if(opts < opts_min) {
2561 opts_min = opts;
2562 if(!input_sync) file_index = ist->file_index;
2563 }
2564 }
2565 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2566 file_index= -1;
2567 break;
2568 }
2569 }
2570 /* if none, if is finished */
2571 if (file_index < 0) {
2572 if(no_packet_count){
2573 no_packet_count=0;
2574 memset(no_packet, 0, sizeof(no_packet));
2575 usleep(10000);
2576 continue;
2577 }
2578 break;
2579 }
2580
2581 /* finish if limit size exhausted */
2582 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2583 break;
2584
2585 /* read a frame from it and output it in the fifo */
2586 is = input_files[file_index].ctx;
2587 ret= av_read_frame(is, &pkt);
2588 if(ret == AVERROR(EAGAIN)){
2589 no_packet[file_index]=1;
2590 no_packet_count++;
2591 continue;
2592 }
2593 if (ret < 0) {
2594 input_files[file_index].eof_reached = 1;
2595 if (opt_shortest)
2596 break;
2597 else
2598 continue;
2599 }
2600
2601 no_packet_count=0;
2602 memset(no_packet, 0, sizeof(no_packet));
2603
2604 if (do_pkt_dump) {
2605 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2606 is->streams[pkt.stream_index]);
2607 }
2608 /* the following test is needed in case new streams appear
2609 dynamically in stream : we ignore them */
2610 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2611 goto discard_packet;
2612 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2613 ist = &input_streams[ist_index];
2614 if (ist->discard)
2615 goto discard_packet;
2616
2617 if (pkt.dts != AV_NOPTS_VALUE)
2618 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2619 if (pkt.pts != AV_NOPTS_VALUE)
2620 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2621
2622 if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2623 && input_files_ts_scale[file_index][pkt.stream_index]){
2624 if(pkt.pts != AV_NOPTS_VALUE)
2625 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2626 if(pkt.dts != AV_NOPTS_VALUE)
2627 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2628 }
2629
2630 // 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);
2631 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2632 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2633 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2634 int64_t delta= pkt_dts - ist->next_pts;
2635 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2636 input_files_ts_offset[ist->file_index]-= delta;
2637 if (verbose > 2)
2638 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2639 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2640 if(pkt.pts != AV_NOPTS_VALUE)
2641 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2642 }
2643 }
2644
2645 /* finish if recording time exhausted */
2646 if (recording_time != INT64_MAX &&
2647 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2648 ist->is_past_recording_time = 1;
2649 goto discard_packet;
2650 }
2651
2652 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2653 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2654
2655 if (verbose >= 0)
2656 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2657 ist->file_index, ist->st->index);
2658 if (exit_on_error)
2659 ffmpeg_exit(1);
2660 av_free_packet(&pkt);
2661 goto redo;
2662 }
2663
2664 discard_packet:
2665 av_free_packet(&pkt);
2666
2667 /* dump report by using the output first video and audio streams */
2668 print_report(output_files, ost_table, nb_ostreams, 0);
2669 }
2670
2671 /* at the end of stream, we must flush the decoder buffers */
2672 for (i = 0; i < nb_input_streams; i++) {
2673 ist = &input_streams[i];
2674 if (ist->decoding_needed) {
2675 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2676 }
2677 }
2678
2679 term_exit();
2680
2681 /* write the trailer if needed and close file */
2682 for(i=0;i<nb_output_files;i++) {
2683 os = output_files[i];
2684 av_write_trailer(os);
2685 }
2686
2687 /* dump report by using the first video and audio streams */
2688 print_report(output_files, ost_table, nb_ostreams, 1);
2689
2690 /* close each encoder */
2691 for(i=0;i<nb_ostreams;i++) {
2692 ost = ost_table[i];
2693 if (ost->encoding_needed) {
2694 av_freep(&ost->st->codec->stats_in);
2695 avcodec_close(ost->st->codec);
2696 }
2697 #if CONFIG_AVFILTER
2698 avfilter_graph_free(&ost->graph);
2699 #endif
2700 }
2701
2702 /* close each decoder */
2703 for (i = 0; i < nb_input_streams; i++) {
2704 ist = &input_streams[i];
2705 if (ist->decoding_needed) {
2706 avcodec_close(ist->st->codec);
2707 }
2708 }
2709
2710 /* finished ! */
2711 ret = 0;
2712
2713 fail:
2714 av_freep(&bit_buffer);
2715
2716 if (ost_table) {
2717 for(i=0;i<nb_ostreams;i++) {
2718 ost = ost_table[i];
2719 if (ost) {
2720 if (ost->st->stream_copy)
2721 av_freep(&ost->st->codec->extradata);
2722 if (ost->logfile) {
2723 fclose(ost->logfile);
2724 ost->logfile = NULL;
2725 }
2726 av_fifo_free(ost->fifo); /* works even if fifo is not
2727 initialized but set to zero */
2728 av_freep(&ost->st->codec->subtitle_header);
2729 av_free(ost->pict_tmp.data[0]);
2730 av_free(ost->forced_kf_pts);
2731 if (ost->video_resample)
2732 sws_freeContext(ost->img_resample_ctx);
2733 if (ost->resample)
2734 audio_resample_close(ost->resample);
2735 if (ost->reformat_ctx)
2736 av_audio_convert_free(ost->reformat_ctx);
2737 av_free(ost);
2738 }
2739 }
2740 av_free(ost_table);
2741 }
2742 return ret;
2743 }
2744
2745 static int opt_format(const char *opt, const char *arg)
2746 {
2747 last_asked_format = arg;
2748 return 0;
2749 }
2750
2751 static int opt_video_rc_override_string(const char *opt, const char *arg)
2752 {
2753 video_rc_override_string = arg;
2754 return 0;
2755 }
2756
2757 static int opt_me_threshold(const char *opt, const char *arg)
2758 {
2759 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2760 return 0;
2761 }
2762
2763 static int opt_verbose(const char *opt, const char *arg)
2764 {
2765 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2766 return 0;
2767 }
2768
2769 static int opt_frame_rate(const char *opt, const char *arg)
2770 {
2771 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2772 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2773 ffmpeg_exit(1);
2774 }
2775 return 0;
2776 }
2777
2778 static int opt_bitrate(const char *opt, const char *arg)
2779 {
2780 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2781
2782 opt_default(opt, arg);
2783
2784 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2785 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2786
2787 return 0;
2788 }
2789
2790 static int opt_frame_crop(const char *opt, const char *arg)
2791 {
2792 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2793 return AVERROR(EINVAL);
2794 }
2795
2796 static int opt_frame_size(const char *opt, const char *arg)
2797 {
2798 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2799 fprintf(stderr, "Incorrect frame size\n");
2800 return AVERROR(EINVAL);
2801 }
2802 return 0;
2803 }
2804
2805 static int opt_pad(const char *opt, const char *arg) {
2806 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2807 return -1;
2808 }
2809
2810 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2811 {
2812 if (strcmp(arg, "list")) {
2813 frame_pix_fmt = av_get_pix_fmt(arg);
2814 if (frame_pix_fmt == PIX_FMT_NONE) {
2815 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2816 return AVERROR(EINVAL);
2817 }
2818 } else {
2819 show_pix_fmts();
2820 ffmpeg_exit(0);
2821 }
2822 return 0;
2823 }
2824
2825 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2826 {
2827 int x = 0, y = 0;
2828 double ar = 0;
2829 const char *p;
2830 char *end;
2831
2832 p = strchr(arg, ':');
2833 if (p) {
2834 x = strtol(arg, &end, 10);
2835 if (end == p)
2836 y = strtol(end+1, &end, 10);
2837 if (x > 0 && y > 0)
2838 ar = (double)x / (double)y;
2839 } else
2840 ar = strtod(arg, NULL);
2841
2842 if (!ar) {
2843 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2844 return AVERROR(EINVAL);
2845 }
2846 frame_aspect_ratio = ar;
2847 return 0;
2848 }
2849
2850 static int opt_metadata(const char *opt, const char *arg)
2851 {
2852 char *mid= strchr(arg, '=');
2853
2854 if(!mid){
2855 fprintf(stderr, "Missing =\n");
2856 ffmpeg_exit(1);
2857 }
2858 *mid++= 0;
2859
2860 av_dict_set(&metadata, arg, mid, 0);
2861
2862 return 0;
2863 }
2864
2865 static int opt_qscale(const char *opt, const char *arg)
2866 {
2867 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2868 if (video_qscale == 0) {
2869 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2870 return AVERROR(EINVAL);
2871 }
2872 return 0;
2873 }
2874
2875 static int opt_top_field_first(const char *opt, const char *arg)
2876 {
2877 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2878 return 0;
2879 }
2880
2881 static int opt_thread_count(const char *opt, const char *arg)
2882 {
2883 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2884 #if !HAVE_THREADS
2885 if (verbose >= 0)
2886 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2887 #endif
2888 return 0;
2889 }
2890
2891 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2892 {
2893 if (strcmp(arg, "list")) {
2894 audio_sample_fmt = av_get_sample_fmt(arg);
2895 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2896 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2897 return AVERROR(EINVAL);
2898 }
2899 } else {
2900 int i;
2901 char fmt_str[128];
2902 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2903 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2904 ffmpeg_exit(0);
2905 }
2906 return 0;
2907 }
2908
2909 static int opt_audio_rate(const char *opt, const char *arg)
2910 {
2911 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2912 return 0;
2913 }
2914
2915 static int opt_audio_channels(const char *opt, const char *arg)
2916 {
2917 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2918 return 0;
2919 }
2920
2921 static int opt_video_channel(const char *opt, const char *arg)
2922 {
2923 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2924 opt_default("channel", arg);
2925 return 0;
2926 }
2927
2928 static int opt_video_standard(const char *opt, const char *arg)
2929 {
2930 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2931 opt_default("standard", arg);
2932 return 0;
2933 }
2934
2935 static int opt_codec(int *pstream_copy, char **pcodec_name,
2936 int codec_type, const char *arg)
2937 {
2938 av_freep(pcodec_name);
2939 if (!strcmp(arg, "copy")) {
2940 *pstream_copy = 1;
2941 } else {
2942 *pcodec_name = av_strdup(arg);
2943 }
2944 return 0;
2945 }
2946
2947 static int opt_audio_codec(const char *opt, const char *arg)
2948 {
2949 return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2950 }
2951
2952 static int opt_video_codec(const char *opt, const char *arg)
2953 {
2954 return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2955 }
2956
2957 static int opt_subtitle_codec(const char *opt, const char *arg)
2958 {
2959 return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2960 }
2961
2962 static int opt_data_codec(const char *opt, const char *arg)
2963 {
2964 return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2965 }
2966
2967 static int opt_codec_tag(const char *opt, const char *arg)
2968 {
2969 char *tail;
2970 uint32_t *codec_tag;
2971
2972 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2973 !strcmp(opt, "vtag") ? &video_codec_tag :
2974 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2975 if (!codec_tag)
2976 return -1;
2977
2978 *codec_tag = strtol(arg, &tail, 0);
2979 if (!tail || *tail)
2980 *codec_tag = AV_RL32(arg);
2981
2982 return 0;
2983 }
2984
2985 static int opt_map(const char *opt, const char *arg)
2986 {
2987 StreamMap *m;
2988 char *p;
2989
2990 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2991 m = &stream_maps[nb_stream_maps-1];
2992
2993 m->file_index = strtol(arg, &p, 0);
2994 if (*p)
2995 p++;
2996
2997 m->stream_index = strtol(p, &p, 0);
2998 if (*p) {
2999 p++;
3000 m->sync_file_index = strtol(p, &p, 0);
3001 if (*p)
3002 p++;
3003 m->sync_stream_index = strtol(p, &p, 0);
3004 } else {
3005 m->sync_file_index = m->file_index;
3006 m->sync_stream_index = m->stream_index;
3007 }
3008 return 0;
3009 }
3010
3011 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3012 {
3013 *endptr = arg;
3014 if (*arg == ',') {
3015 *type = *(++arg);
3016 switch (*arg) {
3017 case 'g':
3018 break;
3019 case 's':
3020 case 'c':
3021 case 'p':
3022 *index = strtol(++arg, endptr, 0);
3023 break;
3024 default:
3025 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3026 ffmpeg_exit(1);
3027 }
3028 } else
3029 *type = 'g';
3030 }
3031
3032 static int opt_map_metadata(const char *opt, const char *arg)
3033 {
3034 MetadataMap *m, *m1;
3035 char *p;
3036
3037 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3038 &nb_meta_data_maps, nb_meta_data_maps + 1);
3039
3040 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3041 m->file = strtol(arg, &p, 0);
3042 parse_meta_type(p, &m->type, &m->index, &p);
3043 if (*p)
3044 p++;
3045
3046 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3047 m1->file = strtol(p, &p, 0);
3048 parse_meta_type(p, &m1->type, &m1->index, &p);
3049
3050 if (m->type == 'g' || m1->type == 'g')
3051 metadata_global_autocopy = 0;
3052 if (m->type == 's' || m1->type == 's')
3053 metadata_streams_autocopy = 0;
3054 if (m->type == 'c' || m1->type == 'c')
3055 metadata_chapters_autocopy = 0;
3056
3057 return 0;
3058 }
3059
3060 static int opt_map_meta_data(const char *opt, const char *arg)
3061 {
3062 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3063 "Use -map_metadata instead.\n");
3064 return opt_map_metadata(opt, arg);
3065 }
3066
3067 static int opt_map_chapters(const char *opt, const char *arg)
3068 {
3069 ChapterMap *c;
3070 char *p;
3071
3072 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3073 nb_chapter_maps + 1);
3074 c = &chapter_maps[nb_chapter_maps - 1];
3075 c->out_file = strtol(arg, &p, 0);
3076 if (*p)
3077 p++;
3078
3079 c->in_file = strtol(p, &p, 0);
3080 return 0;
3081 }
3082
3083 static int opt_input_ts_scale(const char *opt, const char *arg)
3084 {
3085 unsigned int stream;
3086 double scale;
3087 char *p;
3088
3089 stream = strtol(arg, &p, 0);
3090 if (*p)
3091 p++;
3092 scale= strtod(p, &p);
3093
3094 if(stream >= MAX_STREAMS)
3095 ffmpeg_exit(1);
3096
3097 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);
3098 input_files_ts_scale[nb_input_files][stream]= scale;
3099 return 0;
3100 }
3101
3102 static int opt_recording_time(const char *opt, const char *arg)
3103 {
3104 recording_time = parse_time_or_die(opt, arg, 1);
3105 return 0;
3106 }
3107
3108 static int opt_start_time(const char *opt, const char *arg)
3109 {
3110 start_time = parse_time_or_die(opt, arg, 1);
3111 return 0;
3112 }
3113
3114 static int opt_recording_timestamp(const char *opt, const char *arg)
3115 {
3116 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3117 return 0;
3118 }
3119
3120 static int opt_input_ts_offset(const char *opt, const char *arg)
3121 {
3122 input_ts_offset = parse_time_or_die(opt, arg, 1);
3123 return 0;
3124 }
3125
3126 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3127 {
3128 const char *codec_string = encoder ? "encoder" : "decoder";
3129 AVCodec *codec;
3130
3131 if(!name)
3132 return CODEC_ID_NONE;
3133 codec = encoder ?
3134 avcodec_find_encoder_by_name(name) :
3135 avcodec_find_decoder_by_name(name);
3136 if(!codec) {
3137 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3138 ffmpeg_exit(1);
3139 }
3140 if(codec->type != type) {
3141 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3142 ffmpeg_exit(1);
3143 }
3144 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3145 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3146 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3147 "results.\nAdd '-strict experimental' if you want to use it.\n",
3148 codec_string, codec->name);
3149 codec = encoder ?
3150 avcodec_find_encoder(codec->id) :
3151 avcodec_find_decoder(codec->id);
3152 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3153 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3154 codec_string, codec->name);
3155 ffmpeg_exit(1);
3156 }
3157 return codec->id;
3158 }
3159
3160 static int opt_input_file(const char *opt, const char *filename)
3161 {
3162 AVFormatContext *ic;
3163 AVInputFormat *file_iformat = NULL;
3164 int err, i, ret, rfps, rfps_base;
3165 int64_t timestamp;
3166 uint8_t buf[128];
3167
3168 if (last_asked_format) {
3169 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3170 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3171 ffmpeg_exit(1);
3172 }
3173 last_asked_format = NULL;
3174 }
3175
3176 if (!strcmp(filename, "-"))
3177 filename = "pipe:";
3178
3179 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3180 !strcmp(filename, "/dev/stdin");
3181
3182 /* get default parameters from command line */
3183 ic = avformat_alloc_context();
3184 if (!ic) {
3185 print_error(filename, AVERROR(ENOMEM));
3186 ffmpeg_exit(1);
3187 }
3188 if (audio_sample_rate) {
3189 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3190 av_dict_set(&format_opts, "sample_rate", buf, 0);
3191 }
3192 if (audio_channels) {
3193 snprintf(buf, sizeof(buf), "%d", audio_channels);
3194 av_dict_set(&format_opts, "channels", buf, 0);
3195 }
3196 if (frame_rate.num) {
3197 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3198 av_dict_set(&format_opts, "framerate", buf, 0);
3199 }
3200 if (frame_width && frame_height) {
3201 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3202 av_dict_set(&format_opts, "video_size", buf, 0);
3203 }
3204 if (frame_pix_fmt != PIX_FMT_NONE)
3205 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3206
3207 ic->video_codec_id =
3208 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
3209 avcodec_opts[AVMEDIA_TYPE_VIDEO ]->strict_std_compliance);
3210 ic->audio_codec_id =
3211 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
3212 avcodec_opts[AVMEDIA_TYPE_AUDIO ]->strict_std_compliance);
3213 ic->subtitle_codec_id=
3214 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3215 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3216 ic->flags |= AVFMT_FLAG_NONBLOCK;
3217
3218 /* open the input file with generic libav function */
3219 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3220 if (err < 0) {
3221 print_error(filename, err);
3222 ffmpeg_exit(1);
3223 }
3224 assert_avoptions(format_opts);
3225
3226 if(opt_programid) {
3227 int i, j;
3228 int found=0;
3229 for(i=0; i<ic->nb_streams; i++){
3230 ic->streams[i]->discard= AVDISCARD_ALL;
3231 }
3232 for(i=0; i<ic->nb_programs; i++){
3233 AVProgram *p= ic->programs[i];
3234 if(p->id != opt_programid){
3235 p->discard = AVDISCARD_ALL;
3236 }else{
3237 found=1;
3238 for(j=0; j<p->nb_stream_indexes; j++){
3239 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3240 }
3241 }
3242 }
3243 if(!found){
3244 fprintf(stderr, "Specified program id not found\n");
3245 ffmpeg_exit(1);
3246 }
3247 opt_programid=0;
3248 }
3249
3250 if (loop_input) {
3251 av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3252 ic->loop_input = loop_input;
3253 }
3254
3255 /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3256 for (i = 0; i < ic->nb_streams; i++) {
3257 AVCodecContext *dec = ic->streams[i]->codec;
3258 switch (dec->codec_type) {
3259 case AVMEDIA_TYPE_AUDIO:
3260 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3261 AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3262 NULL);
3263 break;
3264 case AVMEDIA_TYPE_VIDEO:
3265 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3266 AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3267 NULL);
3268 break;
3269 }
3270 }
3271
3272 /* If not enough info to get the stream parameters, we decode the
3273 first frames to get it. (used in mpeg case for example) */
3274 ret = av_find_stream_info(ic);
3275 if (ret < 0 && verbose >= 0) {
3276 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3277 av_close_input_file(ic);
3278 ffmpeg_exit(1);
3279 }
3280
3281 timestamp = start_time;
3282 /* add the stream start time */
3283 if (ic->start_time != AV_NOPTS_VALUE)
3284 timestamp += ic->start_time;
3285
3286 /* if seeking requested, we execute it */
3287 if (start_time != 0) {
3288 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3289 if (ret < 0) {
3290 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3291 filename, (double)timestamp / AV_TIME_BASE);
3292 }
3293 /* reset seek info */
3294 start_time = 0;
3295 }
3296
3297 /* update the current parameters so that they match the one of the input stream */
3298 for(i=0;i<ic->nb_streams;i++) {
3299 AVStream *st = ic->streams[i];
3300 AVCodecContext *dec = st->codec;
3301 InputStream *ist;
3302
3303 dec->thread_count = thread_count;
3304 input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3305
3306 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3307 ist = &input_streams[nb_input_streams - 1];
3308 ist->st = st;
3309 ist->file_index = nb_input_files;
3310 ist->discard = 1;
3311
3312 switch (dec->codec_type) {
3313 case AVMEDIA_TYPE_AUDIO:
3314 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3315 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3316 channel_layout = dec->channel_layout;
3317 audio_sample_fmt = dec->sample_fmt;
3318 if(audio_disable)
3319 st->discard= AVDISCARD_ALL;
3320 break;
3321 case AVMEDIA_TYPE_VIDEO:
3322 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3323 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3324 rfps = ic->streams[i]->r_frame_rate.num;
3325 rfps_base = ic->streams[i]->r_frame_rate.den;
3326 if (dec->lowres) {
3327 dec->flags |= CODEC_FLAG_EMU_EDGE;
3328 dec->height >>= dec->lowres;
3329 dec->width >>= dec->lowres;
3330 }
3331 if(me_threshold)
3332 dec->debug |= FF_DEBUG_MV;
3333
3334 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3335
3336 if (verbose >= 0)
3337 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3338 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3339
3340 (float)rfps / rfps_base, rfps, rfps_base);
3341 }
3342
3343 if(video_disable)
3344 st->discard= AVDISCARD_ALL;
3345 else if(video_discard)
3346 st->discard= video_discard;
3347 break;
3348 case AVMEDIA_TYPE_DATA:
3349 break;
3350 case AVMEDIA_TYPE_SUBTITLE:
3351 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3352 if(subtitle_disable)
3353 st->discard = AVDISCARD_ALL;
3354 break;
3355 case AVMEDIA_TYPE_ATTACHMENT:
3356 case AVMEDIA_TYPE_UNKNOWN:
3357 break;
3358 default:
3359 abort();
3360 }
3361 }
3362
3363 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3364 /* dump the file content */
3365 if (verbose >= 0)
3366 av_dump_format(ic, nb_input_files, filename, 0);
3367
3368 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3369 input_files[nb_input_files - 1].ctx = ic;
3370 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3371
3372 frame_rate = (AVRational){0, 0};
3373 frame_pix_fmt = PIX_FMT_NONE;
3374 frame_height = 0;
3375 frame_width = 0;
3376 audio_sample_rate = 0;
3377 audio_channels = 0;
3378
3379 av_freep(&video_codec_name);
3380 av_freep(&audio_codec_name);
3381 av_freep(&subtitle_codec_name);
3382 uninit_opts();
3383 init_opts();
3384 return 0;
3385 }
3386
3387 static void check_inputs(int *has_video_ptr,
3388 int *has_audio_ptr,
3389 int *has_subtitle_ptr,
3390 int *has_data_ptr)
3391 {
3392 int has_video, has_audio, has_subtitle, has_data, i, j;
3393 AVFormatContext *ic;
3394
3395 has_video = 0;
3396 has_audio = 0;
3397 has_subtitle = 0;
3398 has_data = 0;
3399
3400 for(j=0;j<nb_input_files;j++) {
3401 ic = input_files[j].ctx;
3402 for(i=0;i<ic->nb_streams;i++) {
3403 AVCodecContext *enc = ic->streams[i]->codec;
3404 switch(enc->codec_type) {
3405 case AVMEDIA_TYPE_AUDIO:
3406 has_audio = 1;
3407 break;
3408 case AVMEDIA_TYPE_VIDEO:
3409 has_video = 1;
3410 break;
3411 case AVMEDIA_TYPE_SUBTITLE:
3412 has_subtitle = 1;
3413 break;
3414 case AVMEDIA_TYPE_DATA:
3415 case AVMEDIA_TYPE_ATTACHMENT:
3416 case AVMEDIA_TYPE_UNKNOWN:
3417 has_data = 1;
3418 break;
3419 default:
3420 abort();
3421 }
3422 }
3423 }
3424 *has_video_ptr = has_video;
3425 *has_audio_ptr = has_audio;
3426 *has_subtitle_ptr = has_subtitle;
3427 *has_data_ptr = has_data;
3428 }
3429
3430 static void new_video_stream(AVFormatContext *oc, int file_idx)
3431 {
3432 AVStream *st;
3433 OutputStream *ost;
3434 AVCodecContext *video_enc;
3435 enum CodecID codec_id = CODEC_ID_NONE;
3436 AVCodec *codec= NULL;
3437
3438 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3439 if (!st) {
3440 fprintf(stderr, "Could not alloc stream\n");
3441 ffmpeg_exit(1);
3442 }
3443 ost = new_output_stream(oc, file_idx);
3444
3445 if(!video_stream_copy){
3446 if (video_codec_name) {
3447 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3448 avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3449 codec = avcodec_find_encoder_by_name(video_codec_name);
3450 ost->enc = codec;
3451 } else {
3452 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3453 codec = avcodec_find_encoder(codec_id);
3454 }
3455
3456 ost->frame_aspect_ratio = frame_aspect_ratio;
3457 frame_aspect_ratio = 0;
3458 #if CONFIG_AVFILTER
3459 ost->avfilter= vfilters;
3460 vfilters = NULL;
3461 #endif
3462 }
3463
3464 avcodec_get_context_defaults3(st->codec, codec);
3465 ost->bitstream_filters = video_bitstream_filters;
3466 video_bitstream_filters= NULL;
3467
3468 st->codec->thread_count= thread_count;
3469
3470 video_enc = st->codec;
3471
3472 if(video_codec_tag)
3473 video_enc->codec_tag= video_codec_tag;
3474
3475 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3476 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3477 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3478 }
3479
3480 if (video_stream_copy) {
3481 st->stream_copy = 1;
3482 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3483 video_enc->sample_aspect_ratio =
3484 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3485 } else {
3486 const char *p;
3487 int i;
3488
3489 if (frame_rate.num)
3490 ost->frame_rate = frame_rate;
3491 video_enc->codec_id = codec_id;
3492 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3493
3494 video_enc->width = frame_width;
3495 video_enc->height = frame_height;
3496 video_enc->pix_fmt = frame_pix_fmt;
3497 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3498
3499 if (intra_only)
3500 video_enc->gop_size = 0;
3501 if (video_qscale || same_quality) {
3502 video_enc->flags |= CODEC_FLAG_QSCALE;
3503 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3504 }
3505
3506 if(intra_matrix)
3507 video_enc->intra_matrix = intra_matrix;
3508 if(inter_matrix)
3509 video_enc->inter_matrix = inter_matrix;
3510
3511 p= video_rc_override_string;
3512 for(i=0; p; i++){
3513 int start, end, q;
3514 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3515 if(e!=3){
3516 fprintf(stderr, "error parsing rc_override\n");
3517 ffmpeg_exit(1);
3518 }
3519 video_enc->rc_override=
3520 av_realloc(video_enc->rc_override,
3521 sizeof(RcOverride)*(i+1));
3522 video_enc->rc_override[i].start_frame= start;
3523 video_enc->rc_override[i].end_frame = end;
3524 if(q>0){
3525 video_enc->rc_override[i].qscale= q;
3526 video_enc->rc_override[i].quality_factor= 1.0;
3527 }
3528 else{
3529 video_enc->rc_override[i].qscale= 0;
3530 video_enc->rc_override[i].quality_factor= -q/100.0;
3531 }
3532 p= strchr(p, '/');
3533 if(p) p++;
3534 }
3535 video_enc->rc_override_count=i;
3536 if (!video_enc->rc_initial_buffer_occupancy)
3537 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3538 video_enc->me_threshold= me_threshold;
3539 video_enc->intra_dc_precision= intra_dc_precision - 8;
3540
3541 if (do_psnr)
3542 video_enc->flags|= CODEC_FLAG_PSNR;
3543
3544 /* two pass mode */
3545 if (do_pass) {
3546 if (do_pass == 1) {
3547 video_enc->flags |= CODEC_FLAG_PASS1;
3548 } else {
3549 video_enc->flags |= CODEC_FLAG_PASS2;
3550 }
3551 }
3552
3553 if (forced_key_frames)
3554 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3555 }
3556 if (video_language) {
3557 av_dict_set(&st->metadata, "language", video_language, 0);
3558 av_freep(&video_language);
3559 }
3560
3561 /* reset some key parameters */
3562 video_disable = 0;
3563 av_freep(&video_codec_name);
3564 av_freep(&forced_key_frames);
3565 video_stream_copy = 0;
3566 frame_pix_fmt = PIX_FMT_NONE;
3567 }
3568
3569 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3570 {
3571 AVStream *st;
3572 OutputStream *ost;
3573 AVCodec *codec= NULL;
3574 AVCodecContext *audio_enc;
3575 enum CodecID codec_id = CODEC_ID_NONE;
3576
3577 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3578 if (!st) {
3579 fprintf(stderr, "Could not alloc stream\n");
3580 ffmpeg_exit(1);
3581 }
3582 ost = new_output_stream(oc, file_idx);
3583
3584 if(!audio_stream_copy){
3585 if (audio_codec_name) {
3586 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3587 avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3588 codec = avcodec_find_encoder_by_name(audio_codec_name);
3589 ost->enc = codec;
3590 } else {
3591 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3592 codec = avcodec_find_encoder(codec_id);
3593 }
3594 }
3595
3596 avcodec_get_context_defaults3(st->codec, codec);
3597
3598 ost->bitstream_filters = audio_bitstream_filters;
3599 audio_bitstream_filters= NULL;
3600
3601 st->codec->thread_count= thread_count;
3602
3603 audio_enc = st->codec;
3604 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3605
3606 if(audio_codec_tag)
3607 audio_enc->codec_tag= audio_codec_tag;
3608
3609 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3610 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3611 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3612 }
3613 if (audio_stream_copy) {
3614 st->stream_copy = 1;
3615 } else {
3616 audio_enc->codec_id = codec_id;
3617 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3618
3619 if (audio_qscale > QSCALE_NONE) {
3620 audio_enc->flags |= CODEC_FLAG_QSCALE;
3621 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3622 }
3623 if (audio_channels)
3624 audio_enc->channels = audio_channels;
3625 audio_enc->sample_fmt = audio_sample_fmt;
3626 if (audio_sample_rate)
3627 audio_enc->sample_rate = audio_sample_rate;
3628 audio_enc->channel_layout = channel_layout;
3629 choose_sample_fmt(st, codec);
3630 }
3631 if (audio_language) {
3632 av_dict_set(&st->metadata, "language", audio_language, 0);
3633 av_freep(&audio_language);
3634 }
3635
3636 /* reset some key parameters */
3637 audio_disable = 0;
3638 av_freep(&audio_codec_name);
3639 audio_stream_copy = 0;
3640 }
3641
3642 static void new_data_stream(AVFormatContext *oc, int file_idx)
3643 {
3644 AVStream *st;
3645 AVCodec *codec=NULL;
3646 AVCodecContext *data_enc;
3647
3648 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3649 if (!st) {
3650 fprintf(stderr, "Could not alloc stream\n");
3651 ffmpeg_exit(1);
3652 }
3653 new_output_stream(oc, file_idx);
3654 data_enc = st->codec;
3655 if (!data_stream_copy) {
3656 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3657 ffmpeg_exit(1);
3658 }
3659 avcodec_get_context_defaults3(st->codec, codec);
3660
3661 data_enc->codec_type = AVMEDIA_TYPE_DATA;
3662
3663 if (data_codec_tag)
3664 data_enc->codec_tag= data_codec_tag;
3665
3666 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3667 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3668 avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3669 }
3670 if (data_stream_copy) {
3671 st->stream_copy = 1;
3672 }
3673
3674 data_disable