avconv: make itsscale syntax consistent with other options.
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
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[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; //< file index
94 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static AVDictionary *ts_scale;
104
105 static AVFormatContext *output_files[MAX_FILES];
106 static AVDictionary *output_opts[MAX_FILES];
107 static int nb_output_files = 0;
108
109 static StreamMap *stream_maps = NULL;
110 static int nb_stream_maps;
111
112 static AVDictionary *codec_names;
113
114 /* first item specifies output metadata, second is input */
115 static MetadataMap (*meta_data_maps)[2] = NULL;
116 static int nb_meta_data_maps;
117 static int metadata_global_autocopy = 1;
118 static int metadata_streams_autocopy = 1;
119 static int metadata_chapters_autocopy = 1;
120
121 static int chapters_input_file = INT_MAX;
122
123 /* indexed by output file stream index */
124 static int *streamid_map = NULL;
125 static int nb_streamid_map = 0;
126
127 static int frame_width = 0;
128 static int frame_height = 0;
129 static float frame_aspect_ratio = 0;
130 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
131 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
132 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
133 static AVRational frame_rate;
134 static float video_qscale = 0;
135 static uint16_t *intra_matrix = NULL;
136 static uint16_t *inter_matrix = NULL;
137 static const char *video_rc_override_string=NULL;
138 static int video_disable = 0;
139 static int video_discard = 0;
140 static unsigned int video_codec_tag = 0;
141 static char *video_language = NULL;
142 static int same_quant = 0;
143 static int do_deinterlace = 0;
144 static int top_field_first = -1;
145 static int me_threshold = 0;
146 static int intra_dc_precision = 8;
147 static int qp_hist = 0;
148 #if CONFIG_AVFILTER
149 static char *vfilters = NULL;
150 #endif
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 0;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 0;
158 static unsigned int audio_codec_tag = 0;
159 static char *audio_language = NULL;
160
161 static int subtitle_disable = 0;
162 static char *subtitle_language = NULL;
163 static unsigned int subtitle_codec_tag = 0;
164
165 static int data_disable = 0;
166 static unsigned int data_codec_tag = 0;
167
168 static float mux_preload= 0.5;
169 static float mux_max_delay= 0.7;
170
171 static int64_t recording_time = INT64_MAX;
172 static int64_t start_time = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static AVDictionary *metadata;
176 static int do_benchmark = 0;
177 static int do_hex_dump = 0;
178 static int do_pkt_dump = 0;
179 static int do_psnr = 0;
180 static int do_pass = 0;
181 static char *pass_logfilename_prefix = NULL;
182 static int video_sync_method= -1;
183 static int audio_sync_method= 0;
184 static float audio_drift_threshold= 0.1;
185 static int copy_ts= 0;
186 static int copy_tb;
187 static int opt_shortest = 0;
188 static char *vstats_filename;
189 static FILE *vstats_file;
190 static int opt_programid = 0;
191 static int copy_initial_nonkeyframes = 0;
192
193 static int rate_emu = 0;
194
195 static int audio_volume = 256;
196
197 static int exit_on_error = 0;
198 static int using_stdin = 0;
199 static int verbose = 1;
200 static int thread_count= 1;
201 static int64_t video_size = 0;
202 static int64_t audio_size = 0;
203 static int64_t extra_size = 0;
204 static int nb_frames_dup = 0;
205 static int nb_frames_drop = 0;
206 static int input_sync;
207 static uint64_t limit_filesize = 0;
208 static int force_fps = 0;
209 static char *forced_key_frames = NULL;
210
211 static float dts_delta_threshold = 10;
212
213 static int64_t timer_start;
214
215 static uint8_t *audio_buf;
216 static uint8_t *audio_out;
217 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
218
219 static short *samples;
220
221 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
222 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
224
225 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
226
227 struct InputStream;
228
229 typedef struct OutputStream {
230 int file_index; /* file index */
231 int index; /* stream index in the output file */
232 int source_index; /* InputStream index */
233 AVStream *st; /* stream in the output file */
234 int encoding_needed; /* true if encoding needed for this stream */
235 int frame_number;
236 /* input pts and corresponding output pts
237 for A/V sync */
238 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
239 struct InputStream *sync_ist; /* input stream to sync against */
240 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
241 AVBitStreamFilterContext *bitstream_filters;
242 AVCodec *enc;
243
244 /* video only */
245 int video_resample;
246 AVFrame pict_tmp; /* temporary image for resampling */
247 struct SwsContext *img_resample_ctx; /* for image resampling */
248 int resample_height;
249 int resample_width;
250 int resample_pix_fmt;
251 AVRational frame_rate;
252
253 float frame_aspect_ratio;
254
255 /* forced key frames */
256 int64_t *forced_kf_pts;
257 int forced_kf_count;
258 int forced_kf_index;
259
260 /* audio only */
261 int audio_resample;
262 ReSampleContext *resample; /* for audio resampling */
263 int resample_sample_fmt;
264 int resample_channels;
265 int resample_sample_rate;
266 int reformat_pair;
267 AVAudioConvert *reformat_ctx;
268 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
269 FILE *logfile;
270
271 #if CONFIG_AVFILTER
272 AVFilterContext *output_video_filter;
273 AVFilterContext *input_video_filter;
274 AVFilterBufferRef *picref;
275 char *avfilter;
276 AVFilterGraph *graph;
277 #endif
278
279 int sws_flags;
280 AVDictionary *opts;
281 } OutputStream;
282
283 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
284 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
285
286 typedef struct InputStream {
287 int file_index;
288 AVStream *st;
289 int discard; /* true if stream data should be discarded */
290 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
291 AVCodec *dec;
292
293 int64_t start; /* time when read started */
294 int64_t next_pts; /* synthetic pts for cases where pkt.pts
295 is not defined */
296 int64_t pts; /* current pts */
297 PtsCorrectionContext pts_ctx;
298 double ts_scale;
299 int is_start; /* is 1 at the start and after a discontinuity */
300 int showed_multi_packet_warning;
301 int is_past_recording_time;
302 AVDictionary *opts;
303 } InputStream;
304
305 typedef struct InputFile {
306 AVFormatContext *ctx;
307 int eof_reached; /* true if eof reached */
308 int ist_index; /* index of first stream in ist_table */
309 int buffer_size; /* current total buffer size */
310 int64_t ts_offset;
311 } InputFile;
312
313 static InputStream *input_streams = NULL;
314 static int nb_input_streams = 0;
315 static InputFile *input_files = NULL;
316 static int nb_input_files = 0;
317
318 #if CONFIG_AVFILTER
319
320 static int configure_video_filters(InputStream *ist, OutputStream *ost)
321 {
322 AVFilterContext *last_filter, *filter;
323 /** filter graph containing all filters including input & output */
324 AVCodecContext *codec = ost->st->codec;
325 AVCodecContext *icodec = ist->st->codec;
326 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
327 AVRational sample_aspect_ratio;
328 char args[255];
329 int ret;
330
331 ost->graph = avfilter_graph_alloc();
332
333 if (ist->st->sample_aspect_ratio.num){
334 sample_aspect_ratio = ist->st->sample_aspect_ratio;
335 }else
336 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
337
338 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
339 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
340 sample_aspect_ratio.num, sample_aspect_ratio.den);
341
342 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
343 "src", args, NULL, ost->graph);
344 if (ret < 0)
345 return ret;
346 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
347 "out", NULL, &ffsink_ctx, ost->graph);
348 if (ret < 0)
349 return ret;
350 last_filter = ost->input_video_filter;
351
352 if (codec->width != icodec->width || codec->height != icodec->height) {
353 snprintf(args, 255, "%d:%d:flags=0x%X",
354 codec->width,
355 codec->height,
356 ost->sws_flags);
357 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
358 NULL, args, NULL, ost->graph)) < 0)
359 return ret;
360 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
361 return ret;
362 last_filter = filter;
363 }
364
365 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
366 ost->graph->scale_sws_opts = av_strdup(args);
367
368 if (ost->avfilter) {
369 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
370 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
371
372 outputs->name = av_strdup("in");
373 outputs->filter_ctx = last_filter;
374 outputs->pad_idx = 0;
375 outputs->next = NULL;
376
377 inputs->name = av_strdup("out");
378 inputs->filter_ctx = ost->output_video_filter;
379 inputs->pad_idx = 0;
380 inputs->next = NULL;
381
382 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
383 return ret;
384 av_freep(&ost->avfilter);
385 } else {
386 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
387 return ret;
388 }
389
390 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
391 return ret;
392
393 codec->width = ost->output_video_filter->inputs[0]->w;
394 codec->height = ost->output_video_filter->inputs[0]->h;
395 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
396 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
397 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
398 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
399
400 return 0;
401 }
402 #endif /* CONFIG_AVFILTER */
403
404 static void term_exit(void)
405 {
406 av_log(NULL, AV_LOG_QUIET, "");
407 }
408
409 static volatile int received_sigterm = 0;
410 static volatile int received_nb_signals = 0;
411
412 static void
413 sigterm_handler(int sig)
414 {
415 received_sigterm = sig;
416 received_nb_signals++;
417 term_exit();
418 }
419
420 static void term_init(void)
421 {
422 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
423 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
424 #ifdef SIGXCPU
425 signal(SIGXCPU, sigterm_handler);
426 #endif
427 }
428
429 static int decode_interrupt_cb(void)
430 {
431 return received_nb_signals > 1;
432 }
433
434 static int exit_program(int ret)
435 {
436 int i;
437
438 /* close files */
439 for(i=0;i<nb_output_files;i++) {
440 AVFormatContext *s = output_files[i];
441 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
442 avio_close(s->pb);
443 avformat_free_context(s);
444 av_free(output_streams_for_file[i]);
445 av_dict_free(&output_opts[i]);
446 }
447 for(i=0;i<nb_input_files;i++) {
448 av_close_input_file(input_files[i].ctx);
449 }
450 for (i = 0; i < nb_input_streams; i++)
451 av_dict_free(&input_streams[i].opts);
452
453 av_free(intra_matrix);
454 av_free(inter_matrix);
455
456 if (vstats_file)
457 fclose(vstats_file);
458 av_free(vstats_filename);
459
460 av_free(streamid_map);
461 av_free(meta_data_maps);
462
463 av_freep(&input_streams);
464 av_freep(&input_files);
465
466 uninit_opts();
467 av_free(audio_buf);
468 av_free(audio_out);
469 allocated_audio_buf_size= allocated_audio_out_size= 0;
470 av_free(samples);
471
472 #if CONFIG_AVFILTER
473 avfilter_uninit();
474 #endif
475
476 if (received_sigterm) {
477 fprintf(stderr,
478 "Received signal %d: terminating.\n",
479 (int) received_sigterm);
480 exit (255);
481 }
482
483 exit(ret); /* not all OS-es handle main() return value */
484 return ret;
485 }
486
487 static void assert_avoptions(AVDictionary *m)
488 {
489 AVDictionaryEntry *t;
490 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
491 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
492 exit_program(1);
493 }
494 }
495
496 static void assert_codec_experimental(AVCodecContext *c, int encoder)
497 {
498 const char *codec_string = encoder ? "encoder" : "decoder";
499 AVCodec *codec;
500 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
501 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
502 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
503 "results.\nAdd '-strict experimental' if you want to use it.\n",
504 codec_string, c->codec->name);
505 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
506 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
507 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
508 codec_string, codec->name);
509 exit_program(1);
510 }
511 }
512
513 /* similar to ff_dynarray_add() and av_fast_realloc() */
514 static void *grow_array(void *array, int elem_size, int *size, int new_size)
515 {
516 if (new_size >= INT_MAX / elem_size) {
517 fprintf(stderr, "Array too big.\n");
518 exit_program(1);
519 }
520 if (*size < new_size) {
521 uint8_t *tmp = av_realloc(array, new_size*elem_size);
522 if (!tmp) {
523 fprintf(stderr, "Could not alloc buffer.\n");
524 exit_program(1);
525 }
526 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
527 *size = new_size;
528 return tmp;
529 }
530 return array;
531 }
532
533 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
534 {
535 if(codec && codec->sample_fmts){
536 const enum AVSampleFormat *p= codec->sample_fmts;
537 for(; *p!=-1; p++){
538 if(*p == st->codec->sample_fmt)
539 break;
540 }
541 if (*p == -1) {
542 av_log(NULL, AV_LOG_WARNING,
543 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
544 av_get_sample_fmt_name(st->codec->sample_fmt),
545 codec->name,
546 av_get_sample_fmt_name(codec->sample_fmts[0]));
547 st->codec->sample_fmt = codec->sample_fmts[0];
548 }
549 }
550 }
551
552 /**
553 * Update the requested input sample format based on the output sample format.
554 * This is currently only used to request float output from decoders which
555 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
556 * Ideally this will be removed in the future when decoders do not do format
557 * conversion and only output in their native format.
558 */
559 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
560 AVCodecContext *enc)
561 {
562 /* if sample formats match or a decoder sample format has already been
563 requested, just return */
564 if (enc->sample_fmt == dec->sample_fmt ||
565 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
566 return;
567
568 /* if decoder supports more than one output format */
569 if (dec_codec && dec_codec->sample_fmts &&
570 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
571 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
572 const enum AVSampleFormat *p;
573 int min_dec = -1, min_inc = -1;
574
575 /* find a matching sample format in the encoder */
576 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
577 if (*p == enc->sample_fmt) {
578 dec->request_sample_fmt = *p;
579 return;
580 } else if (*p > enc->sample_fmt) {
581 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
582 } else
583 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
584 }
585
586 /* if none match, provide the one that matches quality closest */
587 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
588 enc->sample_fmt - min_dec;
589 }
590 }
591
592 static void choose_sample_rate(AVStream *st, AVCodec *codec)
593 {
594 if(codec && codec->supported_samplerates){
595 const int *p= codec->supported_samplerates;
596 int best=0;
597 int best_dist=INT_MAX;
598 for(; *p; p++){
599 int dist= abs(st->codec->sample_rate - *p);
600 if(dist < best_dist){
601 best_dist= dist;
602 best= *p;
603 }
604 }
605 if(best_dist){
606 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
607 }
608 st->codec->sample_rate= best;
609 }
610 }
611
612 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
613 {
614 if(codec && codec->pix_fmts){
615 const enum PixelFormat *p= codec->pix_fmts;
616 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
617 if(st->codec->codec_id==CODEC_ID_MJPEG){
618 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
619 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
620 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};
621 }
622 }
623 for(; *p!=-1; p++){
624 if(*p == st->codec->pix_fmt)
625 break;
626 }
627 if (*p == -1) {
628 if(st->codec->pix_fmt != PIX_FMT_NONE)
629 av_log(NULL, AV_LOG_WARNING,
630 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
631 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
632 codec->name,
633 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
634 st->codec->pix_fmt = codec->pix_fmts[0];
635 }
636 }
637 }
638
639 static double
640 get_sync_ipts(const OutputStream *ost)
641 {
642 const InputStream *ist = ost->sync_ist;
643 return (double)(ist->pts - start_time)/AV_TIME_BASE;
644 }
645
646 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
647 int ret;
648
649 while(bsfc){
650 AVPacket new_pkt= *pkt;
651 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
652 &new_pkt.data, &new_pkt.size,
653 pkt->data, pkt->size,
654 pkt->flags & AV_PKT_FLAG_KEY);
655 if(a>0){
656 av_free_packet(pkt);
657 new_pkt.destruct= av_destruct_packet;
658 } else if(a<0){
659 fprintf(stderr, "%s failed for stream %d, codec %s",
660 bsfc->filter->name, pkt->stream_index,
661 avctx->codec ? avctx->codec->name : "copy");
662 print_error("", a);
663 if (exit_on_error)
664 exit_program(1);
665 }
666 *pkt= new_pkt;
667
668 bsfc= bsfc->next;
669 }
670
671 ret= av_interleaved_write_frame(s, pkt);
672 if(ret < 0){
673 print_error("av_interleaved_write_frame()", ret);
674 exit_program(1);
675 }
676 }
677
678 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
679
680 static void do_audio_out(AVFormatContext *s,
681 OutputStream *ost,
682 InputStream *ist,
683 unsigned char *buf, int size)
684 {
685 uint8_t *buftmp;
686 int64_t audio_out_size, audio_buf_size;
687 int64_t allocated_for_size= size;
688
689 int size_out, frame_bytes, ret, resample_changed;
690 AVCodecContext *enc= ost->st->codec;
691 AVCodecContext *dec= ist->st->codec;
692 int osize = av_get_bytes_per_sample(enc->sample_fmt);
693 int isize = av_get_bytes_per_sample(dec->sample_fmt);
694 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
695
696 need_realloc:
697 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
698 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
699 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
700 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
701 audio_buf_size*= osize*enc->channels;
702
703 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
704 if(coded_bps > 8*osize)
705 audio_out_size= audio_out_size * coded_bps / (8*osize);
706 audio_out_size += FF_MIN_BUFFER_SIZE;
707
708 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
709 fprintf(stderr, "Buffer sizes too large\n");
710 exit_program(1);
711 }
712
713 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
714 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
715 if (!audio_buf || !audio_out){
716 fprintf(stderr, "Out of memory in do_audio_out\n");
717 exit_program(1);
718 }
719
720 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
721 ost->audio_resample = 1;
722
723 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
724 ost->resample_channels != dec->channels ||
725 ost->resample_sample_rate != dec->sample_rate;
726
727 if ((ost->audio_resample && !ost->resample) || resample_changed) {
728 if (resample_changed) {
729 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",
730 ist->file_index, ist->st->index,
731 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
732 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
733 ost->resample_sample_fmt = dec->sample_fmt;
734 ost->resample_channels = dec->channels;
735 ost->resample_sample_rate = dec->sample_rate;
736 if (ost->resample)
737 audio_resample_close(ost->resample);
738 }
739 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
740 if (audio_sync_method <= 1 &&
741 ost->resample_sample_fmt == enc->sample_fmt &&
742 ost->resample_channels == enc->channels &&
743 ost->resample_sample_rate == enc->sample_rate) {
744 ost->resample = NULL;
745 ost->audio_resample = 0;
746 } else if (ost->audio_resample) {
747 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
748 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
749 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
750 enc->sample_rate, dec->sample_rate,
751 enc->sample_fmt, dec->sample_fmt,
752 16, 10, 0, 0.8);
753 if (!ost->resample) {
754 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
755 dec->channels, dec->sample_rate,
756 enc->channels, enc->sample_rate);
757 exit_program(1);
758 }
759 }
760 }
761
762 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
763 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
764 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
765 if (ost->reformat_ctx)
766 av_audio_convert_free(ost->reformat_ctx);
767 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
768 dec->sample_fmt, 1, NULL, 0);
769 if (!ost->reformat_ctx) {
770 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
771 av_get_sample_fmt_name(dec->sample_fmt),
772 av_get_sample_fmt_name(enc->sample_fmt));
773 exit_program(1);
774 }
775 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
776 }
777
778 if(audio_sync_method){
779 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
780 - av_fifo_size(ost->fifo)/(enc->channels * 2);
781 double idelta= delta*dec->sample_rate / enc->sample_rate;
782 int byte_delta= ((int)idelta)*2*dec->channels;
783
784 //FIXME resample delay
785 if(fabs(delta) > 50){
786 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
787 if(byte_delta < 0){
788 byte_delta= FFMAX(byte_delta, -size);
789 size += byte_delta;
790 buf -= byte_delta;
791 if(verbose > 2)
792 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
793 if(!size)
794 return;
795 ist->is_start=0;
796 }else{
797 static uint8_t *input_tmp= NULL;
798 input_tmp= av_realloc(input_tmp, byte_delta + size);
799
800 if(byte_delta > allocated_for_size - size){
801 allocated_for_size= byte_delta + (int64_t)size;
802 goto need_realloc;
803 }
804 ist->is_start=0;
805
806 memset(input_tmp, 0, byte_delta);
807 memcpy(input_tmp + byte_delta, buf, size);
808 buf= input_tmp;
809 size += byte_delta;
810 if(verbose > 2)
811 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
812 }
813 }else if(audio_sync_method>1){
814 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
815 av_assert0(ost->audio_resample);
816 if(verbose > 2)
817 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
818 // 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));
819 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
820 }
821 }
822 }else
823 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
824 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
825
826 if (ost->audio_resample) {
827 buftmp = audio_buf;
828 size_out = audio_resample(ost->resample,
829 (short *)buftmp, (short *)buf,
830 size / (dec->channels * isize));
831 size_out = size_out * enc->channels * osize;
832 } else {
833 buftmp = buf;
834 size_out = size;
835 }
836
837 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
838 const void *ibuf[6]= {buftmp};
839 void *obuf[6]= {audio_buf};
840 int istride[6]= {isize};
841 int ostride[6]= {osize};
842 int len= size_out/istride[0];
843 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
844 printf("av_audio_convert() failed\n");
845 if (exit_on_error)
846 exit_program(1);
847 return;
848 }
849 buftmp = audio_buf;
850 size_out = len*osize;
851 }
852
853 /* now encode as many frames as possible */
854 if (enc->frame_size > 1) {
855 /* output resampled raw samples */
856 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
857 fprintf(stderr, "av_fifo_realloc2() failed\n");
858 exit_program(1);
859 }
860 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
861
862 frame_bytes = enc->frame_size * osize * enc->channels;
863
864 while (av_fifo_size(ost->fifo) >= frame_bytes) {
865 AVPacket pkt;
866 av_init_packet(&pkt);
867
868 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
869
870 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
871
872 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
873 (short *)audio_buf);
874 if (ret < 0) {
875 fprintf(stderr, "Audio encoding failed\n");
876 exit_program(1);
877 }
878 audio_size += ret;
879 pkt.stream_index= ost->index;
880 pkt.data= audio_out;
881 pkt.size= ret;
882 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
883 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
884 pkt.flags |= AV_PKT_FLAG_KEY;
885 write_frame(s, &pkt, enc, ost->bitstream_filters);
886
887 ost->sync_opts += enc->frame_size;
888 }
889 } else {
890 AVPacket pkt;
891 av_init_packet(&pkt);
892
893 ost->sync_opts += size_out / (osize * enc->channels);
894
895 /* output a pcm frame */
896 /* determine the size of the coded buffer */
897 size_out /= osize;
898 if (coded_bps)
899 size_out = size_out*coded_bps/8;
900
901 if(size_out > audio_out_size){
902 fprintf(stderr, "Internal error, buffer size too small\n");
903 exit_program(1);
904 }
905
906 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907 ret = avcodec_encode_audio(enc, audio_out, size_out,
908 (short *)buftmp);
909 if (ret < 0) {
910 fprintf(stderr, "Audio encoding failed\n");
911 exit_program(1);
912 }
913 audio_size += ret;
914 pkt.stream_index= ost->index;
915 pkt.data= audio_out;
916 pkt.size= ret;
917 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
918 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
919 pkt.flags |= AV_PKT_FLAG_KEY;
920 write_frame(s, &pkt, enc, ost->bitstream_filters);
921 }
922 }
923
924 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
925 {
926 AVCodecContext *dec;
927 AVPicture *picture2;
928 AVPicture picture_tmp;
929 uint8_t *buf = 0;
930
931 dec = ist->st->codec;
932
933 /* deinterlace : must be done before any resize */
934 if (do_deinterlace) {
935 int size;
936
937 /* create temporary picture */
938 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
939 buf = av_malloc(size);
940 if (!buf)
941 return;
942
943 picture2 = &picture_tmp;
944 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
945
946 if(avpicture_deinterlace(picture2, picture,
947 dec->pix_fmt, dec->width, dec->height) < 0) {
948 /* if error, do not deinterlace */
949 fprintf(stderr, "Deinterlacing failed\n");
950 av_free(buf);
951 buf = NULL;
952 picture2 = picture;
953 }
954 } else {
955 picture2 = picture;
956 }
957
958 if (picture != picture2)
959 *picture = *picture2;
960 *bufp = buf;
961 }
962
963 /* we begin to correct av delay at this threshold */
964 #define AV_DELAY_MAX 0.100
965
966 static void do_subtitle_out(AVFormatContext *s,
967 OutputStream *ost,
968 InputStream *ist,
969 AVSubtitle *sub,
970 int64_t pts)
971 {
972 static uint8_t *subtitle_out = NULL;
973 int subtitle_out_max_size = 1024 * 1024;
974 int subtitle_out_size, nb, i;
975 AVCodecContext *enc;
976 AVPacket pkt;
977
978 if (pts == AV_NOPTS_VALUE) {
979 fprintf(stderr, "Subtitle packets must have a pts\n");
980 if (exit_on_error)
981 exit_program(1);
982 return;
983 }
984
985 enc = ost->st->codec;
986
987 if (!subtitle_out) {
988 subtitle_out = av_malloc(subtitle_out_max_size);
989 }
990
991 /* Note: DVB subtitle need one packet to draw them and one other
992 packet to clear them */
993 /* XXX: signal it in the codec context ? */
994 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
995 nb = 2;
996 else
997 nb = 1;
998
999 for(i = 0; i < nb; i++) {
1000 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1001 // start_display_time is required to be 0
1002 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1003 sub->end_display_time -= sub->start_display_time;
1004 sub->start_display_time = 0;
1005 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1006 subtitle_out_max_size, sub);
1007 if (subtitle_out_size < 0) {
1008 fprintf(stderr, "Subtitle encoding failed\n");
1009 exit_program(1);
1010 }
1011
1012 av_init_packet(&pkt);
1013 pkt.stream_index = ost->index;
1014 pkt.data = subtitle_out;
1015 pkt.size = subtitle_out_size;
1016 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1017 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1018 /* XXX: the pts correction is handled here. Maybe handling
1019 it in the codec would be better */
1020 if (i == 0)
1021 pkt.pts += 90 * sub->start_display_time;
1022 else
1023 pkt.pts += 90 * sub->end_display_time;
1024 }
1025 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1026 }
1027 }
1028
1029 static int bit_buffer_size= 1024*256;
1030 static uint8_t *bit_buffer= NULL;
1031
1032 static void do_video_resample(OutputStream *ost,
1033 InputStream *ist,
1034 AVFrame *in_picture,
1035 AVFrame **out_picture)
1036 {
1037 int resample_changed = 0;
1038 AVCodecContext *dec = ist->st->codec;
1039 *out_picture = in_picture;
1040
1041 resample_changed = ost->resample_width != dec->width ||
1042 ost->resample_height != dec->height ||
1043 ost->resample_pix_fmt != dec->pix_fmt;
1044
1045 if (resample_changed) {
1046 av_log(NULL, AV_LOG_INFO,
1047 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1048 ist->file_index, ist->st->index,
1049 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1050 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1051 if(!ost->video_resample)
1052 ost->video_resample = 1;
1053 }
1054
1055 #if !CONFIG_AVFILTER
1056 if (ost->video_resample) {
1057 *out_picture = &ost->pict_tmp;
1058 if (resample_changed) {
1059 /* initialize a new scaler context */
1060 sws_freeContext(ost->img_resample_ctx);
1061 ost->img_resample_ctx = sws_getContext(
1062 ist->st->codec->width,
1063 ist->st->codec->height,
1064 ist->st->codec->pix_fmt,
1065 ost->st->codec->width,
1066 ost->st->codec->height,
1067 ost->st->codec->pix_fmt,
1068 ost->sws_flags, NULL, NULL, NULL);
1069 if (ost->img_resample_ctx == NULL) {
1070 fprintf(stderr, "Cannot get resampling context\n");
1071 exit_program(1);
1072 }
1073 }
1074 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1075 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1076 }
1077 #else
1078 if (resample_changed) {
1079 avfilter_graph_free(&ost->graph);
1080 if (configure_video_filters(ist, ost)) {
1081 fprintf(stderr, "Error reinitialising filters!\n");
1082 exit_program(1);
1083 }
1084 }
1085 #endif
1086 if (resample_changed) {
1087 ost->resample_width = dec->width;
1088 ost->resample_height = dec->height;
1089 ost->resample_pix_fmt = dec->pix_fmt;
1090 }
1091 }
1092
1093
1094 static void do_video_out(AVFormatContext *s,
1095 OutputStream *ost,
1096 InputStream *ist,
1097 AVFrame *in_picture,
1098 int *frame_size, float quality)
1099 {
1100 int nb_frames, i, ret, format_video_sync;
1101 AVFrame *final_picture;
1102 AVCodecContext *enc, *dec;
1103 double sync_ipts;
1104
1105 enc = ost->st->codec;
1106 dec = ist->st->codec;
1107
1108 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1109
1110 /* by default, we output a single frame */
1111 nb_frames = 1;
1112
1113 *frame_size = 0;
1114
1115 format_video_sync = video_sync_method;
1116 if (format_video_sync < 0)
1117 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1118
1119 if (format_video_sync) {
1120 double vdelta = sync_ipts - ost->sync_opts;
1121 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1122 if (vdelta < -1.1)
1123 nb_frames = 0;
1124 else if (format_video_sync == 2) {
1125 if(vdelta<=-0.6){
1126 nb_frames=0;
1127 }else if(vdelta>0.6)
1128 ost->sync_opts= lrintf(sync_ipts);
1129 }else if (vdelta > 1.1)
1130 nb_frames = lrintf(vdelta);
1131 //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);
1132 if (nb_frames == 0){
1133 ++nb_frames_drop;
1134 if (verbose>2)
1135 fprintf(stderr, "*** drop!\n");
1136 }else if (nb_frames > 1) {
1137 nb_frames_dup += nb_frames - 1;
1138 if (verbose>2)
1139 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1140 }
1141 }else
1142 ost->sync_opts= lrintf(sync_ipts);
1143
1144 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1145 if (nb_frames <= 0)
1146 return;
1147
1148 do_video_resample(ost, ist, in_picture, &final_picture);
1149
1150 /* duplicates frame if needed */
1151 for(i=0;i<nb_frames;i++) {
1152 AVPacket pkt;
1153 av_init_packet(&pkt);
1154 pkt.stream_index= ost->index;
1155
1156 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1157 /* raw pictures are written as AVPicture structure to
1158 avoid any copies. We support temorarily the older
1159 method. */
1160 AVFrame* old_frame = enc->coded_frame;
1161 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1162 pkt.data= (uint8_t *)final_picture;
1163 pkt.size= sizeof(AVPicture);
1164 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1165 pkt.flags |= AV_PKT_FLAG_KEY;
1166
1167 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1168 enc->coded_frame = old_frame;
1169 } else {
1170 AVFrame big_picture;
1171
1172 big_picture= *final_picture;
1173 /* better than nothing: use input picture interlaced
1174 settings */
1175 big_picture.interlaced_frame = in_picture->interlaced_frame;
1176 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1177 if(top_field_first == -1)
1178 big_picture.top_field_first = in_picture->top_field_first;
1179 else
1180 big_picture.top_field_first = top_field_first;
1181 }
1182
1183 /* handles same_quant here. This is not correct because it may
1184 not be a global option */
1185 big_picture.quality = quality;
1186 if(!me_threshold)
1187 big_picture.pict_type = 0;
1188 // big_picture.pts = AV_NOPTS_VALUE;
1189 big_picture.pts= ost->sync_opts;
1190 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1191 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1192 if (ost->forced_kf_index < ost->forced_kf_count &&
1193 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1194 big_picture.pict_type = AV_PICTURE_TYPE_I;
1195 ost->forced_kf_index++;
1196 }
1197 ret = avcodec_encode_video(enc,
1198 bit_buffer, bit_buffer_size,
1199 &big_picture);
1200 if (ret < 0) {
1201 fprintf(stderr, "Video encoding failed\n");
1202 exit_program(1);
1203 }
1204
1205 if(ret>0){
1206 pkt.data= bit_buffer;
1207 pkt.size= ret;
1208 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1209 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1210 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1211 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1212 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1213
1214 if(enc->coded_frame->key_frame)
1215 pkt.flags |= AV_PKT_FLAG_KEY;
1216 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1217 *frame_size = ret;
1218 video_size += ret;
1219 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1220 // enc->frame_number-1, ret, enc->pict_type);
1221 /* if two pass, output log */
1222 if (ost->logfile && enc->stats_out) {
1223 fprintf(ost->logfile, "%s", enc->stats_out);
1224 }
1225 }
1226 }
1227 ost->sync_opts++;
1228 ost->frame_number++;
1229 }
1230 }
1231
1232 static double psnr(double d){
1233 return -10.0*log(d)/log(10.0);
1234 }
1235
1236 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1237 int frame_size)
1238 {
1239 AVCodecContext *enc;
1240 int frame_number;
1241 double ti1, bitrate, avg_bitrate;
1242
1243 /* this is executed just the first time do_video_stats is called */
1244 if (!vstats_file) {
1245 vstats_file = fopen(vstats_filename, "w");
1246 if (!vstats_file) {
1247 perror("fopen");
1248 exit_program(1);
1249 }
1250 }
1251
1252 enc = ost->st->codec;
1253 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1254 frame_number = ost->frame_number;
1255 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1256 if (enc->flags&CODEC_FLAG_PSNR)
1257 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1258
1259 fprintf(vstats_file,"f_size= %6d ", frame_size);
1260 /* compute pts value */
1261 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1262 if (ti1 < 0.01)
1263 ti1 = 0.01;
1264
1265 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1266 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1267 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1268 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1269 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1270 }
1271 }
1272
1273 static void print_report(AVFormatContext **output_files,
1274 OutputStream **ost_table, int nb_ostreams,
1275 int is_last_report)
1276 {
1277 char buf[1024];
1278 OutputStream *ost;
1279 AVFormatContext *oc;
1280 int64_t total_size;
1281 AVCodecContext *enc;
1282 int frame_number, vid, i;
1283 double bitrate, ti1, pts;
1284 static int64_t last_time = -1;
1285 static int qp_histogram[52];
1286
1287 if (!is_last_report) {
1288 int64_t cur_time;
1289 /* display the report every 0.5 seconds */
1290 cur_time = av_gettime();
1291 if (last_time == -1) {
1292 last_time = cur_time;
1293 return;
1294 }
1295 if ((cur_time - last_time) < 500000)
1296 return;
1297 last_time = cur_time;
1298 }
1299
1300
1301 oc = output_files[0];
1302
1303 total_size = avio_size(oc->pb);
1304 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1305 total_size= avio_tell(oc->pb);
1306
1307 buf[0] = '\0';
1308 ti1 = 1e10;
1309 vid = 0;
1310 for(i=0;i<nb_ostreams;i++) {
1311 float q = -1;
1312 ost = ost_table[i];
1313 enc = ost->st->codec;
1314 if (!ost->st->stream_copy && enc->coded_frame)
1315 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1316 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1317 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1318 }
1319 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1320 float t = (av_gettime()-timer_start) / 1000000.0;
1321
1322 frame_number = ost->frame_number;
1323 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1324 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1325 if(is_last_report)
1326 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1327 if(qp_hist){
1328 int j;
1329 int qp = lrintf(q);
1330 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1331 qp_histogram[qp]++;
1332 for(j=0; j<32; j++)
1333 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1334 }
1335 if (enc->flags&CODEC_FLAG_PSNR){
1336 int j;
1337 double error, error_sum=0;
1338 double scale, scale_sum=0;
1339 char type[3]= {'Y','U','V'};
1340 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1341 for(j=0; j<3; j++){
1342 if(is_last_report){
1343 error= enc->error[j];
1344 scale= enc->width*enc->height*255.0*255.0*frame_number;
1345 }else{
1346 error= enc->coded_frame->error[j];
1347 scale= enc->width*enc->height*255.0*255.0;
1348 }
1349 if(j) scale/=4;
1350 error_sum += error;
1351 scale_sum += scale;
1352 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1353 }
1354 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1355 }
1356 vid = 1;
1357 }
1358 /* compute min output value */
1359 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1360 if ((pts < ti1) && (pts > 0))
1361 ti1 = pts;
1362 }
1363 if (ti1 < 0.01)
1364 ti1 = 0.01;
1365
1366 if (verbose > 0 || is_last_report) {
1367 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1368
1369 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1370 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1371 (double)total_size / 1024, ti1, bitrate);
1372
1373 if (nb_frames_dup || nb_frames_drop)
1374 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1375 nb_frames_dup, nb_frames_drop);
1376
1377 if (verbose >= 0)
1378 fprintf(stderr, "%s \r", buf);
1379
1380 fflush(stderr);
1381 }
1382
1383 if (is_last_report && verbose >= 0){
1384 int64_t raw= audio_size + video_size + extra_size;
1385 fprintf(stderr, "\n");
1386 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1387 video_size/1024.0,
1388 audio_size/1024.0,
1389 extra_size/1024.0,
1390 100.0*(total_size - raw)/raw
1391 );
1392 }
1393 }
1394
1395 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1396 {
1397 int fill_char = 0x00;
1398 if (sample_fmt == AV_SAMPLE_FMT_U8)
1399 fill_char = 0x80;
1400 memset(buf, fill_char, size);
1401 }
1402
1403 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1404 static int output_packet(InputStream *ist, int ist_index,
1405 OutputStream **ost_table, int nb_ostreams,
1406 const AVPacket *pkt)
1407 {
1408 AVFormatContext *os;
1409 OutputStream *ost;
1410 int ret, i;
1411 int got_output;
1412 AVFrame picture;
1413 void *buffer_to_free = NULL;
1414 static unsigned int samples_size= 0;
1415 AVSubtitle subtitle, *subtitle_to_free;
1416 int64_t pkt_pts = AV_NOPTS_VALUE;
1417 #if CONFIG_AVFILTER
1418 int frame_available;
1419 #endif
1420 float quality;
1421
1422 AVPacket avpkt;
1423 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1424
1425 if(ist->next_pts == AV_NOPTS_VALUE)
1426 ist->next_pts= ist->pts;
1427
1428 if (pkt == NULL) {
1429 /* EOF handling */
1430 av_init_packet(&avpkt);
1431 avpkt.data = NULL;
1432 avpkt.size = 0;
1433 goto handle_eof;
1434 } else {
1435 avpkt = *pkt;
1436 }
1437
1438 if(pkt->dts != AV_NOPTS_VALUE)
1439 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1440 if(pkt->pts != AV_NOPTS_VALUE)
1441 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1442
1443 //while we have more to decode or while the decoder did output something on EOF
1444 while (avpkt.size > 0 || (!pkt && got_output)) {
1445 uint8_t *data_buf, *decoded_data_buf;
1446 int data_size, decoded_data_size;
1447 handle_eof:
1448 ist->pts= ist->next_pts;
1449
1450 if(avpkt.size && avpkt.size != pkt->size &&
1451 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1452 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1453 ist->showed_multi_packet_warning=1;
1454 }
1455
1456 /* decode the packet if needed */
1457 decoded_data_buf = NULL; /* fail safe */
1458 decoded_data_size= 0;
1459 data_buf = avpkt.data;
1460 data_size = avpkt.size;
1461 subtitle_to_free = NULL;
1462 if (ist->decoding_needed) {
1463 switch(ist->st->codec->codec_type) {
1464 case AVMEDIA_TYPE_AUDIO:{
1465 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1466 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1467 av_free(samples);
1468 samples= av_malloc(samples_size);
1469 }
1470 decoded_data_size= samples_size;
1471 /* XXX: could avoid copy if PCM 16 bits with same
1472 endianness as CPU */
1473 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1474 &avpkt);
1475 if (ret < 0)
1476 return ret;
1477 avpkt.data += ret;
1478 avpkt.size -= ret;
1479 data_size = ret;
1480 got_output = decoded_data_size > 0;
1481 /* Some bug in mpeg audio decoder gives */
1482 /* decoded_data_size < 0, it seems they are overflows */
1483 if (!got_output) {
1484 /* no audio frame */
1485 continue;
1486 }
1487 decoded_data_buf = (uint8_t *)samples;
1488 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1489 (ist->st->codec->sample_rate * ist->st->codec->channels);
1490 break;}
1491 case AVMEDIA_TYPE_VIDEO:
1492 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1493 /* XXX: allocate picture correctly */
1494 avcodec_get_frame_defaults(&picture);
1495 avpkt.pts = pkt_pts;
1496 avpkt.dts = ist->pts;
1497 pkt_pts = AV_NOPTS_VALUE;
1498
1499 ret = avcodec_decode_video2(ist->st->codec,
1500 &picture, &got_output, &avpkt);
1501 quality = same_quant ? picture.quality : 0;
1502 if (ret < 0)
1503 return ret;
1504 if (!got_output) {
1505 /* no picture yet */
1506 goto discard_packet;
1507 }
1508 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1509 if (ist->st->codec->time_base.num != 0) {
1510 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1511 ist->next_pts += ((int64_t)AV_TIME_BASE *
1512 ist->st->codec->time_base.num * ticks) /
1513 ist->st->codec->time_base.den;
1514 }
1515 avpkt.size = 0;
1516 buffer_to_free = NULL;
1517 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1518 break;
1519 case AVMEDIA_TYPE_SUBTITLE:
1520 ret = avcodec_decode_subtitle2(ist->st->codec,
1521 &subtitle, &got_output, &avpkt);
1522 if (ret < 0)
1523 return ret;
1524 if (!got_output) {
1525 goto discard_packet;
1526 }
1527 subtitle_to_free = &subtitle;
1528 avpkt.size = 0;
1529 break;
1530 default:
1531 return -1;
1532 }
1533 } else {
1534 switch(ist->st->codec->codec_type) {
1535 case AVMEDIA_TYPE_AUDIO:
1536 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1537 ist->st->codec->sample_rate;
1538 break;
1539 case AVMEDIA_TYPE_VIDEO:
1540 if (ist->st->codec->time_base.num != 0) {
1541 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1542 ist->next_pts += ((int64_t)AV_TIME_BASE *
1543 ist->st->codec->time_base.num * ticks) /
1544 ist->st->codec->time_base.den;
1545 }
1546 break;
1547 }
1548 ret = avpkt.size;
1549 avpkt.size = 0;
1550 }
1551
1552 #if CONFIG_AVFILTER
1553 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1554 for (i = 0; i < nb_ostreams; i++) {
1555 ost = ost_table[i];
1556 if (ost->input_video_filter && ost->source_index == ist_index) {
1557 AVRational sar;
1558 if (ist->st->sample_aspect_ratio.num)
1559 sar = ist->st->sample_aspect_ratio;
1560 else
1561 sar = ist->st->codec->sample_aspect_ratio;
1562 // add it to be filtered
1563 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1564 ist->pts,
1565 sar);
1566 }
1567 }
1568 }
1569 #endif
1570
1571 // preprocess audio (volume)
1572 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1573 if (audio_volume != 256) {
1574 short *volp;
1575 volp = samples;
1576 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1577 int v = ((*volp) * audio_volume + 128) >> 8;
1578 if (v < -32768) v = -32768;
1579 if (v > 32767) v = 32767;
1580 *volp++ = v;
1581 }
1582 }
1583 }
1584
1585 /* frame rate emulation */
1586 if (rate_emu) {
1587 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1588 int64_t now = av_gettime() - ist->start;
1589 if (pts > now)
1590 usleep(pts - now);
1591 }
1592 /* if output time reached then transcode raw format,
1593 encode packets and output them */
1594 if (start_time == 0 || ist->pts >= start_time)
1595 for(i=0;i<nb_ostreams;i++) {
1596 int frame_size;
1597
1598 ost = ost_table[i];
1599 if (ost->source_index == ist_index) {
1600 #if CONFIG_AVFILTER
1601 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1602 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1603 while (frame_available) {
1604 AVRational ist_pts_tb;
1605 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1606 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1607 if (ost->picref)
1608 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1609 #endif
1610 os = output_files[ost->file_index];
1611
1612 /* set the input output pts pairs */
1613 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1614
1615 if (ost->encoding_needed) {
1616 av_assert0(ist->decoding_needed);
1617 switch(ost->st->codec->codec_type) {
1618 case AVMEDIA_TYPE_AUDIO:
1619 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1620 break;
1621 case AVMEDIA_TYPE_VIDEO:
1622 #if CONFIG_AVFILTER
1623 if (ost->picref->video && !ost->frame_aspect_ratio)
1624 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1625 #endif
1626 do_video_out(os, ost, ist, &picture, &frame_size,
1627 same_quant ? quality : ost->st->codec->global_quality);
1628 if (vstats_filename && frame_size)
1629 do_video_stats(os, ost, frame_size);
1630 break;
1631 case AVMEDIA_TYPE_SUBTITLE:
1632 do_subtitle_out(os, ost, ist, &subtitle,
1633 pkt->pts);
1634 break;
1635 default:
1636 abort();
1637 }
1638 } else {
1639 AVFrame avframe; //FIXME/XXX remove this
1640 AVPacket opkt;
1641 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1642
1643 av_init_packet(&opkt);
1644
1645 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1646 #if !CONFIG_AVFILTER
1647 continue;
1648 #else
1649 goto cont;
1650 #endif
1651
1652 /* no reencoding needed : output the packet directly */
1653 /* force the input stream PTS */
1654
1655 avcodec_get_frame_defaults(&avframe);
1656 ost->st->codec->coded_frame= &avframe;
1657 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1658
1659 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1660 audio_size += data_size;
1661 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1662 video_size += data_size;
1663 ost->sync_opts++;
1664 }
1665
1666 opkt.stream_index= ost->index;
1667 if(pkt->pts != AV_NOPTS_VALUE)
1668 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1669 else
1670 opkt.pts= AV_NOPTS_VALUE;
1671
1672 if (pkt->dts == AV_NOPTS_VALUE)
1673 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1674 else
1675 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1676 opkt.dts -= ost_tb_start_time;
1677
1678 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1679 opkt.flags= pkt->flags;
1680
1681 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1682 if( ost->st->codec->codec_id != CODEC_ID_H264
1683 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1684 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1685 ) {
1686 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1687 opkt.destruct= av_destruct_packet;
1688 } else {
1689 opkt.data = data_buf;
1690 opkt.size = data_size;
1691 }
1692
1693 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1694 ost->st->codec->frame_number++;
1695 ost->frame_number++;
1696 av_free_packet(&opkt);
1697 }
1698 #if CONFIG_AVFILTER
1699 cont:
1700 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1701 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1702 if (ost->picref)
1703 avfilter_unref_buffer(ost->picref);
1704 }
1705 #endif
1706 }
1707 }
1708
1709 av_free(buffer_to_free);
1710 /* XXX: allocate the subtitles in the codec ? */
1711 if (subtitle_to_free) {
1712 avsubtitle_free(subtitle_to_free);
1713 subtitle_to_free = NULL;
1714 }
1715 }
1716 discard_packet:
1717 if (pkt == NULL) {
1718 /* EOF handling */
1719
1720 for(i=0;i<nb_ostreams;i++) {
1721 ost = ost_table[i];
1722 if (ost->source_index == ist_index) {
1723 AVCodecContext *enc= ost->st->codec;
1724 os = output_files[ost->file_index];
1725
1726 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1727 continue;
1728 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1729 continue;
1730
1731 if (ost->encoding_needed) {
1732 for(;;) {
1733 AVPacket pkt;
1734 int fifo_bytes;
1735 av_init_packet(&pkt);
1736 pkt.stream_index= ost->index;
1737
1738 switch(ost->st->codec->codec_type) {
1739 case AVMEDIA_TYPE_AUDIO:
1740 fifo_bytes = av_fifo_size(ost->fifo);
1741 ret = 0;
1742 /* encode any samples remaining in fifo */
1743 if (fifo_bytes > 0) {
1744 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1745 int fs_tmp = enc->frame_size;
1746
1747 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1748 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1749 enc->frame_size = fifo_bytes / (osize * enc->channels);
1750 } else { /* pad */
1751 int frame_bytes = enc->frame_size*osize*enc->channels;
1752 if (allocated_audio_buf_size < frame_bytes)
1753 exit_program(1);
1754 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1755 }
1756
1757 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1758 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1759 ost->st->time_base.num, enc->sample_rate);
1760 enc->frame_size = fs_tmp;
1761 }
1762 if(ret <= 0) {
1763 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1764 }
1765 if (ret < 0) {
1766 fprintf(stderr, "Audio encoding failed\n");
1767 exit_program(1);
1768 }
1769 audio_size += ret;
1770 pkt.flags |= AV_PKT_FLAG_KEY;
1771 break;
1772 case AVMEDIA_TYPE_VIDEO:
1773 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1774 if (ret < 0) {
1775 fprintf(stderr, "Video encoding failed\n");
1776 exit_program(1);
1777 }
1778 video_size += ret;
1779 if(enc->coded_frame && enc->coded_frame->key_frame)
1780 pkt.flags |= AV_PKT_FLAG_KEY;
1781 if (ost->logfile && enc->stats_out) {
1782 fprintf(ost->logfile, "%s", enc->stats_out);
1783 }
1784 break;
1785 default:
1786 ret=-1;
1787 }
1788
1789 if(ret<=0)
1790 break;
1791 pkt.data= bit_buffer;
1792 pkt.size= ret;
1793 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1794 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1795 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1796 }
1797 }
1798 }
1799 }
1800 }
1801
1802 return 0;
1803 }
1804
1805 static void print_sdp(AVFormatContext **avc, int n)
1806 {
1807 char sdp[2048];
1808
1809 av_sdp_create(avc, n, sdp, sizeof(sdp));
1810 printf("SDP:\n%s\n", sdp);
1811 fflush(stdout);
1812 }
1813
1814 /*
1815 * The following code is the main loop of the file converter
1816 */
1817 static int transcode(AVFormatContext **output_files,
1818 int nb_output_files,
1819 InputFile *input_files,
1820 int nb_input_files)
1821 {
1822 int ret = 0, i, j, k, n, nb_ostreams = 0;
1823 AVFormatContext *is, *os;
1824 AVCodecContext *codec, *icodec;
1825 OutputStream *ost, **ost_table = NULL;
1826 InputStream *ist;
1827 char error[1024];
1828 int want_sdp = 1;
1829 uint8_t no_packet[MAX_FILES]={0};
1830 int no_packet_count=0;
1831
1832 if (rate_emu)
1833 for (i = 0; i < nb_input_streams; i++)
1834 input_streams[i].start = av_gettime();
1835
1836 /* output stream init */
1837 nb_ostreams = 0;
1838 for(i=0;i<nb_output_files;i++) {
1839 os = output_files[i];
1840 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1841 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1842 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1843 ret = AVERROR(EINVAL);
1844 goto fail;
1845 }
1846 nb_ostreams += os->nb_streams;
1847 }
1848
1849 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1850 if (!ost_table)
1851 goto fail;
1852 n = 0;
1853 for(k=0;k<nb_output_files;k++) {
1854 os = output_files[k];
1855 for (i = 0; i < os->nb_streams; i++, n++)
1856 ost_table[n] = output_streams_for_file[k][i];
1857 }
1858
1859 /* for each output stream, we compute the right encoding parameters */
1860 for(i=0;i<nb_ostreams;i++) {
1861 ost = ost_table[i];
1862 os = output_files[ost->file_index];
1863 ist = &input_streams[ost->source_index];
1864
1865 codec = ost->st->codec;
1866 icodec = ist->st->codec;
1867
1868 ost->st->disposition = ist->st->disposition;
1869 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1870 codec->chroma_sample_location = icodec->chroma_sample_location;
1871
1872 if (ost->st->stream_copy) {
1873 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1874
1875 if (extra_size > INT_MAX)
1876 goto fail;
1877
1878 /* if stream_copy is selected, no need to decode or encode */
1879 codec->codec_id = icodec->codec_id;
1880 codec->codec_type = icodec->codec_type;
1881
1882 if(!codec->codec_tag){
1883 if( !os->oformat->codec_tag
1884 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1885 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1886 codec->codec_tag = icodec->codec_tag;
1887 }
1888
1889 codec->bit_rate = icodec->bit_rate;
1890 codec->rc_max_rate = icodec->rc_max_rate;
1891 codec->rc_buffer_size = icodec->rc_buffer_size;
1892 codec->extradata= av_mallocz(extra_size);
1893 if (!codec->extradata)
1894 goto fail;
1895 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1896 codec->extradata_size= icodec->extradata_size;
1897 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){
1898 codec->time_base = icodec->time_base;
1899 codec->time_base.num *= icodec->ticks_per_frame;
1900 av_reduce(&codec->time_base.num, &codec->time_base.den,
1901 codec->time_base.num, codec->time_base.den, INT_MAX);
1902 }else
1903 codec->time_base = ist->st->time_base;
1904 switch(codec->codec_type) {
1905 case AVMEDIA_TYPE_AUDIO:
1906 if(audio_volume != 256) {
1907 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1908 exit_program(1);
1909 }
1910 codec->channel_layout = icodec->channel_layout;
1911 codec->sample_rate = icodec->sample_rate;
1912 codec->channels = icodec->channels;
1913 codec->frame_size = icodec->frame_size;
1914 codec->audio_service_type = icodec->audio_service_type;
1915 codec->block_align= icodec->block_align;
1916 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1917 codec->block_align= 0;
1918 if(codec->codec_id == CODEC_ID_AC3)
1919 codec->block_align= 0;
1920 break;
1921 case AVMEDIA_TYPE_VIDEO:
1922 codec->pix_fmt = icodec->pix_fmt;
1923 codec->width = icodec->width;
1924 codec->height = icodec->height;
1925 codec->has_b_frames = icodec->has_b_frames;
1926 if (!codec->sample_aspect_ratio.num) {
1927 codec->sample_aspect_ratio =
1928 ost->st->sample_aspect_ratio =
1929 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1930 ist->st->codec->sample_aspect_ratio.num ?
1931 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1932 }
1933 break;
1934 case AVMEDIA_TYPE_SUBTITLE:
1935 codec->width = icodec->width;
1936 codec->height = icodec->height;
1937 break;
1938 case AVMEDIA_TYPE_DATA:
1939 break;
1940 default:
1941 abort();
1942 }
1943 } else {
1944 if (!ost->enc)
1945 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1946 switch(codec->codec_type) {
1947 case AVMEDIA_TYPE_AUDIO:
1948 ost->fifo= av_fifo_alloc(1024);
1949 if(!ost->fifo)
1950 goto fail;
1951 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1952 if (!codec->sample_rate) {
1953 codec->sample_rate = icodec->sample_rate;
1954 if (icodec->lowres)
1955 codec->sample_rate >>= icodec->lowres;
1956 }
1957 choose_sample_rate(ost->st, ost->enc);
1958 codec->time_base = (AVRational){1, codec->sample_rate};
1959 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1960 codec->sample_fmt = icodec->sample_fmt;
1961 choose_sample_fmt(ost->st, ost->enc);
1962 if (!codec->channels)
1963 codec->channels = icodec->channels;
1964 codec->channel_layout = icodec->channel_layout;
1965 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1966 codec->channel_layout = 0;
1967 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1968 icodec->request_channels = codec->channels;
1969 ist->decoding_needed = 1;
1970 ost->encoding_needed = 1;
1971 ost->resample_sample_fmt = icodec->sample_fmt;
1972 ost->resample_sample_rate = icodec->sample_rate;
1973 ost->resample_channels = icodec->channels;
1974 break;
1975 case AVMEDIA_TYPE_VIDEO:
1976 if (codec->pix_fmt == PIX_FMT_NONE)
1977 codec->pix_fmt = icodec->pix_fmt;
1978 choose_pixel_fmt(ost->st, ost->enc);
1979
1980 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1981 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1982 exit_program(1);
1983 }
1984
1985 if (!codec->width || !codec->height) {
1986 codec->width = icodec->width;
1987 codec->height = icodec->height;
1988 }
1989
1990 ost->video_resample = codec->width != icodec->width ||
1991 codec->height != icodec->height ||
1992 codec->pix_fmt != icodec->pix_fmt;
1993 if (ost->video_resample) {
1994 #if !CONFIG_AVFILTER
1995 avcodec_get_frame_defaults(&ost->pict_tmp);
1996 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1997 codec->width, codec->height)) {
1998 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1999 exit_program(1);
2000 }
2001 ost->img_resample_ctx = sws_getContext(
2002 icodec->width,
2003 icodec->height,
2004 icodec->pix_fmt,
2005 codec->width,
2006 codec->height,
2007 codec->pix_fmt,
2008 ost->sws_flags, NULL, NULL, NULL);
2009 if (ost->img_resample_ctx == NULL) {
2010 fprintf(stderr, "Cannot get resampling context\n");
2011 exit_program(1);
2012 }
2013 #endif
2014 codec->bits_per_raw_sample= 0;
2015 }
2016
2017 ost->resample_height = icodec->height;
2018 ost->resample_width = icodec->width;
2019 ost->resample_pix_fmt= icodec->pix_fmt;
2020 ost->encoding_needed = 1;
2021 ist->decoding_needed = 1;
2022
2023 if (!ost->frame_rate.num)
2024 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2025 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2026 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2027 ost->frame_rate = ost->enc->supported_framerates[idx];
2028 }
2029 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2030
2031 #if CONFIG_AVFILTER
2032 if (configure_video_filters(ist, ost)) {
2033 fprintf(stderr, "Error opening filters!\n");
2034 exit(1);
2035 }
2036 #endif
2037 break;
2038 case AVMEDIA_TYPE_SUBTITLE:
2039 ost->encoding_needed = 1;
2040 ist->decoding_needed = 1;
2041 break;
2042 default:
2043 abort();
2044 break;
2045 }
2046 /* two pass mode */
2047 if (ost->encoding_needed &&
2048 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2049 char logfilename[1024];
2050 FILE *f;
2051
2052 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2053 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2054 i);
2055 if (codec->flags & CODEC_FLAG_PASS1) {
2056 f = fopen(logfilename, "wb");
2057 if (!f) {
2058 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2059 exit_program(1);
2060 }
2061 ost->logfile = f;
2062 } else {
2063 char *logbuffer;
2064 size_t logbuffer_size;
2065 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2066 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2067 exit_program(1);
2068 }
2069 codec->stats_in = logbuffer;
2070 }
2071 }
2072 }
2073 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2074 int size= codec->width * codec->height;
2075 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2076 }
2077 }
2078
2079 if (!bit_buffer)
2080 bit_buffer = av_malloc(bit_buffer_size);
2081 if (!bit_buffer) {
2082 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2083 bit_buffer_size);
2084 ret = AVERROR(ENOMEM);
2085 goto fail;
2086 }
2087
2088 /* open each encoder */
2089 for(i=0;i<nb_ostreams;i++) {
2090 ost = ost_table[i];
2091 if (ost->encoding_needed) {
2092 AVCodec *codec = ost->enc;
2093 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2094 if (!codec) {
2095 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2096 ost->st->codec->codec_id, ost->file_index, ost->index);
2097 ret = AVERROR(EINVAL);
2098 goto dump_format;
2099 }
2100 if (dec->subtitle_header) {
2101 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2102 if (!ost->st->codec->subtitle_header) {
2103 ret = AVERROR(ENOMEM);
2104 goto dump_format;
2105 }
2106 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2107 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2108 }
2109 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2110 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2111 ost->file_index, ost->index);
2112 ret = AVERROR(EINVAL);
2113 goto dump_format;
2114 }
2115 assert_codec_experimental(ost->st->codec, 1);
2116 assert_avoptions(ost->opts);
2117 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2118 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2119 "It takes bits/s as argument, not kbits/s\n");
2120 extra_size += ost->st->codec->extradata_size;
2121 }
2122 }
2123
2124 /* open each decoder */
2125 for (i = 0; i < nb_input_streams; i++) {
2126 ist = &input_streams[i];
2127 if (ist->decoding_needed) {
2128 AVCodec *codec = ist->dec;
2129 if (!codec)
2130 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2131 if (!codec) {
2132 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2133 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2134 ret = AVERROR(EINVAL);
2135 goto dump_format;
2136 }
2137
2138 /* update requested sample format for the decoder based on the
2139 corresponding encoder sample format */
2140 for (j = 0; j < nb_ostreams; j++) {
2141 ost = ost_table[j];
2142 if (ost->source_index == i) {
2143 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2144 break;
2145 }
2146 }
2147
2148 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2149 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2150 ist->file_index, ist->st->index);
2151 ret = AVERROR(EINVAL);
2152 goto dump_format;
2153 }
2154 assert_codec_experimental(ist->st->codec, 0);
2155 assert_avoptions(ost->opts);
2156 }
2157 }
2158
2159 /* init pts */
2160 for (i = 0; i < nb_input_streams; i++) {
2161 AVStream *st;
2162 ist = &input_streams[i];
2163 st= ist->st;
2164 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2165 ist->next_pts = AV_NOPTS_VALUE;
2166 init_pts_correction(&ist->pts_ctx);
2167 ist->is_start = 1;
2168 }
2169
2170 /* open files and write file headers */
2171 for(i=0;i<nb_output_files;i++) {
2172 os = output_files[i];
2173 if (avformat_write_header(os, &output_opts[i]) < 0) {
2174 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2175 ret = AVERROR(EINVAL);
2176 goto dump_format;
2177 }
2178 assert_avoptions(output_opts[i]);
2179 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2180 want_sdp = 0;
2181 }
2182 }
2183
2184 dump_format:
2185 /* dump the file output parameters - cannot be done before in case
2186 of stream copy */
2187 for(i=0;i<nb_output_files;i++) {
2188 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2189 }
2190
2191 /* dump the stream mapping */
2192 if (verbose >= 0) {
2193 fprintf(stderr, "Stream mapping:\n");
2194 for(i=0;i<nb_ostreams;i++) {
2195 ost = ost_table[i];
2196 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2197 input_streams[ost->source_index].file_index,
2198 input_streams[ost->source_index].st->index,
2199 ost->file_index,
2200 ost->index);
2201 if (ost->sync_ist != &input_streams[ost->source_index])
2202 fprintf(stderr, " [sync #%d.%d]",
2203 ost->sync_ist->file_index,
2204 ost->sync_ist->st->index);
2205 if (ost->st->stream_copy)
2206 fprintf(stderr, " (copy)");
2207 fprintf(stderr, "\n");
2208 }
2209 }
2210
2211 if (ret) {
2212 fprintf(stderr, "%s\n", error);
2213 goto fail;
2214 }
2215
2216 if (want_sdp) {
2217 print_sdp(output_files, nb_output_files);
2218 }
2219
2220 if (verbose >= 0)
2221 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2222 term_init();
2223
2224 timer_start = av_gettime();
2225
2226 for(; received_sigterm == 0;) {
2227 int file_index, ist_index;
2228 AVPacket pkt;
2229 int64_t ipts_min;
2230 double opts_min;
2231
2232 redo:
2233 ipts_min = INT64_MAX;
2234 opts_min= 1e100;
2235
2236 /* select the stream that we must read now by looking at the
2237 smallest output pts */
2238 file_index = -1;
2239 for(i=0;i<nb_ostreams;i++) {
2240 int64_t ipts;
2241 double opts;
2242 ost = ost_table[i];
2243 os = output_files[ost->file_index];
2244 ist = &input_streams[ost->source_index];
2245 if(ist->is_past_recording_time || no_packet[ist->file_index])
2246 continue;
2247 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2248 ipts = ist->pts;
2249 if (!input_files[ist->file_index].eof_reached){
2250 if(ipts < ipts_min) {
2251 ipts_min = ipts;
2252 if(input_sync ) file_index = ist->file_index;
2253 }
2254 if(opts < opts_min) {
2255 opts_min = opts;
2256 if(!input_sync) file_index = ist->file_index;
2257 }
2258 }
2259 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2260 file_index= -1;
2261 break;
2262 }
2263 }
2264 /* if none, if is finished */
2265 if (file_index < 0) {
2266 if(no_packet_count){
2267 no_packet_count=0;
2268 memset(no_packet, 0, sizeof(no_packet));
2269 usleep(10000);
2270 continue;
2271 }
2272 break;
2273 }
2274
2275 /* finish if limit size exhausted */
2276 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2277 break;
2278
2279 /* read a frame from it and output it in the fifo */
2280 is = input_files[file_index].ctx;
2281 ret= av_read_frame(is, &pkt);
2282 if(ret == AVERROR(EAGAIN)){
2283 no_packet[file_index]=1;
2284 no_packet_count++;
2285 continue;
2286 }
2287 if (ret < 0) {
2288 input_files[file_index].eof_reached = 1;
2289 if (opt_shortest)
2290 break;
2291 else
2292 continue;
2293 }
2294
2295 no_packet_count=0;
2296 memset(no_packet, 0, sizeof(no_packet));
2297
2298 if (do_pkt_dump) {
2299 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2300 is->streams[pkt.stream_index]);
2301 }
2302 /* the following test is needed in case new streams appear
2303 dynamically in stream : we ignore them */
2304 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2305 goto discard_packet;
2306 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2307 ist = &input_streams[ist_index];
2308 if (ist->discard)
2309 goto discard_packet;
2310
2311 if (pkt.dts != AV_NOPTS_VALUE)
2312 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2313 if (pkt.pts != AV_NOPTS_VALUE)
2314 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2315
2316 if (ist->ts_scale) {
2317 if(pkt.pts != AV_NOPTS_VALUE)
2318 pkt.pts *= ist->ts_scale;
2319 if(pkt.dts != AV_NOPTS_VALUE)
2320 pkt.dts *= ist->ts_scale;
2321 }
2322
2323 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2324 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2325 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2326 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2327 int64_t delta= pkt_dts - ist->next_pts;
2328 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2329 input_files[ist->file_index].ts_offset -= delta;
2330 if (verbose > 2)
2331 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2332 delta, input_files[ist->file_index].ts_offset);
2333 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2334 if(pkt.pts != AV_NOPTS_VALUE)
2335 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2336 }
2337 }
2338
2339 /* finish if recording time exhausted */
2340 if (recording_time != INT64_MAX &&
2341 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2342 ist->is_past_recording_time = 1;
2343 goto discard_packet;
2344 }
2345
2346 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2347 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2348
2349 if (verbose >= 0)
2350 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2351 ist->file_index, ist->st->index);
2352 if (exit_on_error)
2353 exit_program(1);
2354 av_free_packet(&pkt);
2355 goto redo;
2356 }
2357
2358 discard_packet:
2359 av_free_packet(&pkt);
2360
2361 /* dump report by using the output first video and audio streams */
2362 print_report(output_files, ost_table, nb_ostreams, 0);
2363 }
2364
2365 /* at the end of stream, we must flush the decoder buffers */
2366 for (i = 0; i < nb_input_streams; i++) {
2367 ist = &input_streams[i];
2368 if (ist->decoding_needed) {
2369 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2370 }
2371 }
2372
2373 term_exit();
2374
2375 /* write the trailer if needed and close file */
2376 for(i=0;i<nb_output_files;i++) {
2377 os = output_files[i];
2378 av_write_trailer(os);
2379 }
2380
2381 /* dump report by using the first video and audio streams */
2382 print_report(output_files, ost_table, nb_ostreams, 1);
2383
2384 /* close each encoder */
2385 for(i=0;i<nb_ostreams;i++) {
2386 ost = ost_table[i];
2387 if (ost->encoding_needed) {
2388 av_freep(&ost->st->codec->stats_in);
2389 avcodec_close(ost->st->codec);
2390 }
2391 #if CONFIG_AVFILTER
2392 avfilter_graph_free(&ost->graph);
2393 #endif
2394 }
2395
2396 /* close each decoder */
2397 for (i = 0; i < nb_input_streams; i++) {
2398 ist = &input_streams[i];
2399 if (ist->decoding_needed) {
2400 avcodec_close(ist->st->codec);
2401 }
2402 }
2403
2404 /* finished ! */
2405 ret = 0;
2406
2407 fail:
2408 av_freep(&bit_buffer);
2409
2410 if (ost_table) {
2411 for(i=0;i<nb_ostreams;i++) {
2412 ost = ost_table[i];
2413 if (ost) {
2414 if (ost->st->stream_copy)
2415 av_freep(&ost->st->codec->extradata);
2416 if (ost->logfile) {
2417 fclose(ost->logfile);
2418 ost->logfile = NULL;
2419 }
2420 av_fifo_free(ost->fifo); /* works even if fifo is not
2421 initialized but set to zero */
2422 av_freep(&ost->st->codec->subtitle_header);
2423 av_free(ost->pict_tmp.data[0]);
2424 av_free(ost->forced_kf_pts);
2425 if (ost->video_resample)
2426 sws_freeContext(ost->img_resample_ctx);
2427 if (ost->resample)
2428 audio_resample_close(ost->resample);
2429 if (ost->reformat_ctx)
2430 av_audio_convert_free(ost->reformat_ctx);
2431 av_dict_free(&ost->opts);
2432 av_free(ost);
2433 }
2434 }
2435 av_free(ost_table);
2436 }
2437 return ret;
2438 }
2439
2440 static int opt_format(const char *opt, const char *arg)
2441 {
2442 last_asked_format = arg;
2443 return 0;
2444 }
2445
2446 static int opt_video_rc_override_string(const char *opt, const char *arg)
2447 {
2448 video_rc_override_string = arg;
2449 return 0;
2450 }
2451
2452 static int opt_me_threshold(const char *opt, const char *arg)
2453 {
2454 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2455 return 0;
2456 }
2457
2458 static int opt_verbose(const char *opt, const char *arg)
2459 {
2460 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2461 return 0;
2462 }
2463
2464 static int opt_frame_rate(const char *opt, const char *arg)
2465 {
2466 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2467 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2468 exit_program(1);
2469 }
2470 return 0;
2471 }
2472
2473 static int opt_frame_crop(const char *opt, const char *arg)
2474 {
2475 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2476 return AVERROR(EINVAL);
2477 }
2478
2479 static int opt_frame_size(const char *opt, const char *arg)
2480 {
2481 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2482 fprintf(stderr, "Incorrect frame size\n");
2483 return AVERROR(EINVAL);
2484 }
2485 return 0;
2486 }
2487
2488 static int opt_pad(const char *opt, const char *arg) {
2489 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2490 return -1;
2491 }
2492
2493 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2494 {
2495 if (strcmp(arg, "list")) {
2496 frame_pix_fmt = av_get_pix_fmt(arg);
2497 if (frame_pix_fmt == PIX_FMT_NONE) {
2498 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2499 return AVERROR(EINVAL);
2500 }
2501 } else {
2502 show_pix_fmts();
2503 exit_program(0);
2504 }
2505 return 0;
2506 }
2507
2508 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2509 {
2510 int x = 0, y = 0;
2511 double ar = 0;
2512 const char *p;
2513 char *end;
2514
2515 p = strchr(arg, ':');
2516 if (p) {
2517 x = strtol(arg, &end, 10);
2518 if (end == p)
2519 y = strtol(end+1, &end, 10);
2520 if (x > 0 && y > 0)
2521 ar = (double)x / (double)y;
2522 } else
2523 ar = strtod(arg, NULL);
2524
2525 if (!ar) {
2526 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2527 return AVERROR(EINVAL);
2528 }
2529 frame_aspect_ratio = ar;
2530 return 0;
2531 }
2532
2533 static int opt_metadata(const char *opt, const char *arg)
2534 {
2535 char *mid= strchr(arg, '=');
2536
2537 if(!mid){
2538 fprintf(stderr, "Missing =\n");
2539 exit_program(1);
2540 }
2541 *mid++= 0;
2542
2543 av_dict_set(&metadata, arg, mid, 0);
2544
2545 return 0;
2546 }
2547
2548 static int opt_qscale(const char *opt, const char *arg)
2549 {
2550 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2551 if (video_qscale == 0) {
2552 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2553 return AVERROR(EINVAL);
2554 }
2555 return 0;
2556 }
2557
2558 static int opt_top_field_first(const char *opt, const char *arg)
2559 {
2560 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2561 return 0;
2562 }
2563
2564 static int opt_thread_count(const char *opt, const char *arg)
2565 {
2566 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2567 #if !HAVE_THREADS
2568 if (verbose >= 0)
2569 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2570 #endif
2571 return 0;
2572 }
2573
2574 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2575 {
2576 if (strcmp(arg, "list")) {
2577 audio_sample_fmt = av_get_sample_fmt(arg);
2578 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2579 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2580 return AVERROR(EINVAL);
2581 }
2582 } else {
2583 int i;
2584 char fmt_str[128];
2585 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2586 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2587 exit_program(0);
2588 }
2589 return 0;
2590 }
2591
2592 static int opt_audio_rate(const char *opt, const char *arg)
2593 {
2594 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2595 return 0;
2596 }
2597
2598 static int opt_audio_channels(const char *opt, const char *arg)
2599 {
2600 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2601 return 0;
2602 }
2603
2604 static int opt_codec(const char *opt, const char *arg)
2605 {
2606 return av_dict_set(&codec_names, opt, arg, 0);
2607 }
2608
2609 static int opt_audio_codec(const char *opt, const char *arg)
2610 {
2611 return opt_codec("codec:a", arg);
2612 }
2613
2614 static int opt_video_codec(const char *opt, const char *arg)
2615 {
2616 return opt_codec("codec:v", arg);
2617 }
2618
2619 static int opt_subtitle_codec(const char *opt, const char *arg)
2620 {
2621 return opt_codec("codec:s", arg);
2622 }
2623
2624 static int opt_data_codec(const char *opt, const char *arg)
2625 {
2626 return opt_codec("codec:d", arg);
2627 }
2628
2629 static int opt_codec_tag(const char *opt, const char *arg)
2630 {
2631 char *tail;
2632 uint32_t *codec_tag;
2633
2634 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2635 !strcmp(opt, "vtag") ? &video_codec_tag :
2636 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2637 if (!codec_tag)
2638 return -1;
2639
2640 *codec_tag = strtol(arg, &tail, 0);
2641 if (!tail || *tail)
2642 *codec_tag = AV_RL32(arg);
2643
2644 return 0;
2645 }
2646
2647 static int opt_map(const char *opt, const char *arg)
2648 {
2649 StreamMap *m = NULL;
2650 int i, negative = 0, file_idx;
2651 int sync_file_idx = -1, sync_stream_idx;
2652 char *p, *sync;
2653 char *map;
2654
2655 if (*arg == '-') {
2656 negative = 1;
2657 arg++;
2658 }
2659 map = av_strdup(arg);
2660
2661 /* parse sync stream first, just pick first matching stream */
2662 if (sync = strchr(map, ',')) {
2663 *sync = 0;
2664 sync_file_idx = strtol(sync + 1, &sync, 0);
2665 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2666 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2667 exit_program(1);
2668 }
2669 if (*sync)
2670 sync++;
2671 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2672 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2673 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2674 sync_stream_idx = i;
2675 break;
2676 }
2677 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2678 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2679 "match any streams.\n", arg);
2680 exit_program(1);
2681 }
2682 }
2683
2684
2685 file_idx = strtol(map, &p, 0);
2686 if (file_idx >= nb_input_files || file_idx < 0) {
2687 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2688 exit_program(1);
2689 }
2690 if (negative)
2691 /* disable some already defined maps */
2692 for (i = 0; i < nb_stream_maps; i++) {
2693 m = &stream_maps[i];
2694 if (check_stream_specifier(input_files[m->file_index].ctx,
2695 input_files[m->file_index].ctx->streams[m->stream_index],
2696 *p == ':' ? p + 1 : p) > 0)
2697 m->disabled = 1;
2698 }
2699 else
2700 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2701 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2702 *p == ':' ? p + 1 : p) <= 0)
2703 continue;
2704 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2705 m = &stream_maps[nb_stream_maps - 1];
2706
2707 m->file_index = file_idx;
2708 m->stream_index = i;
2709
2710 if (sync_file_idx >= 0) {
2711 m->sync_file_index = sync_file_idx;
2712 m->sync_stream_index = sync_stream_idx;
2713 } else {
2714 m->sync_file_index = file_idx;
2715 m->sync_stream_index = i;
2716 }
2717 }
2718
2719 if (!m) {
2720 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2721 exit_program(1);
2722 }
2723
2724 av_freep(&map);
2725 return 0;
2726 }
2727
2728 static void parse_meta_type(char *arg, char *type, int *index)
2729 {
2730 if (*arg == ':') {
2731 *type = *(++arg);
2732 switch (*arg) {
2733 case 'g':
2734 break;
2735 case 's':
2736 case 'c':
2737 case 'p':
2738 if (*(++arg) == ':')
2739 *index = strtol(++arg, NULL, 0);
2740 break;
2741 default:
2742 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2743 exit_program(1);
2744 }
2745 } else
2746 *type = 'g';
2747 }
2748
2749 static int opt_map_metadata(const char *opt, const char *arg)
2750 {
2751 MetadataMap *m, *m1;
2752 char *p;
2753
2754 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2755 &nb_meta_data_maps, nb_meta_data_maps + 1);
2756
2757 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2758 m->file = strtol(arg, &p, 0);
2759 parse_meta_type(p, &m->type, &m->index);
2760
2761 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2762 if (p = strchr(opt, ':'))
2763 parse_meta_type(p, &m1->type, &m1->index);
2764 else
2765 m1->type = 'g';
2766
2767 if (m->type == 'g' || m1->type == 'g')
2768 metadata_global_autocopy = 0;
2769 if (m->type == 's' || m1->type == 's')
2770 metadata_streams_autocopy = 0;
2771 if (m->type == 'c' || m1->type == 'c')
2772 metadata_chapters_autocopy = 0;
2773
2774 return 0;
2775 }
2776
2777 static int opt_input_ts_scale(const char *opt, const char *arg)
2778 {
2779 return av_dict_set(&ts_scale, opt, arg, 0);
2780 }
2781
2782 static int opt_recording_time(const char *opt, const char *arg)
2783 {
2784 recording_time = parse_time_or_die(opt, arg, 1);
2785 return 0;
2786 }
2787
2788 static int opt_start_time(const char *opt, const char *arg)
2789 {
2790 start_time = parse_time_or_die(opt, arg, 1);
2791 return 0;
2792 }
2793
2794 static int opt_input_ts_offset(const char *opt, const char *arg)
2795 {
2796 input_ts_offset = parse_time_or_die(opt, arg, 1);
2797 return 0;
2798 }
2799
2800 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2801 {
2802 const char *codec_string = encoder ? "encoder" : "decoder";
2803 AVCodec *codec;
2804
2805 if(!name)
2806 return CODEC_ID_NONE;
2807 codec = encoder ?
2808 avcodec_find_encoder_by_name(name) :
2809 avcodec_find_decoder_by_name(name);
2810 if(!codec) {
2811 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2812 exit_program(1);
2813 }
2814 if(codec->type != type) {
2815 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2816 exit_program(1);
2817 }
2818 return codec->id;
2819 }
2820
2821 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2822 {
2823 AVDictionaryEntry *e = NULL;
2824 char *codec_name = NULL;
2825 int ret;
2826
2827 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2828 char *p = strchr(e->key, ':');
2829
2830 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2831 codec_name = e->value;
2832 else if (ret < 0)
2833 exit_program(1);
2834 }
2835
2836 if (!codec_name) {
2837 if (s->oformat) {
2838 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2839 return avcodec_find_encoder(st->codec->codec_id);
2840 }
2841 } else if (!strcmp(codec_name, "copy"))
2842 st->stream_copy = 1;
2843 else {
2844 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2845 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2846 avcodec_find_decoder_by_name(codec_name);
2847 }
2848
2849 return NULL;
2850 }
2851
2852 /**
2853 * Add all the streams from the given input file to the global
2854 * list of input streams.
2855 */
2856 static void add_input_streams(AVFormatContext *ic)
2857 {
2858 int i, rfps, rfps_base, ret;
2859
2860 for (i = 0; i < ic->nb_streams; i++) {
2861 AVStream *st = ic->streams[i];
2862 AVCodecContext *dec = st->codec;
2863 AVDictionaryEntry *e = NULL;
2864 InputStream *ist;
2865 char *scale = NULL;
2866
2867 dec->thread_count = thread_count;
2868
2869 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2870 ist = &input_streams[nb_input_streams - 1];
2871 ist->st = st;
2872 ist->file_index = nb_input_files;
2873 ist->discard = 1;
2874 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2875
2876 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2877 char *p = strchr(e->key, ':');
2878
2879 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2880 scale = e->value;
2881 else if (ret < 0)
2882 exit_program(1);
2883 }
2884 if (scale)
2885 ist->ts_scale = strtod(scale, NULL);
2886
2887 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2888
2889 switch (dec->codec_type) {
2890 case AVMEDIA_TYPE_AUDIO:
2891 if(audio_disable)
2892 st->discard= AVDISCARD_ALL;
2893 break;
2894 case AVMEDIA_TYPE_VIDEO:
2895 rfps = ic->streams[i]->r_frame_rate.num;
2896 rfps_base = ic->streams[i]->r_frame_rate.den;
2897 if (dec->lowres) {
2898 dec->flags |= CODEC_FLAG_EMU_EDGE;
2899 dec->height >>= dec->lowres;
2900 dec->width >>= dec->lowres;
2901 }
2902 if(me_threshold)
2903 dec->debug |= FF_DEBUG_MV;
2904
2905 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2906
2907 if (verbose >= 0)
2908 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2909 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2910
2911 (float)rfps / rfps_base, rfps, rfps_base);
2912 }
2913
2914 if(video_disable)
2915 st->discard= AVDISCARD_ALL;
2916 else if(video_discard)
2917 st->discard= video_discard;
2918 break;
2919 case AVMEDIA_TYPE_DATA:
2920 break;
2921 case AVMEDIA_TYPE_SUBTITLE:
2922 if(subtitle_disable)
2923 st->discard = AVDISCARD_ALL;
2924 break;
2925 case AVMEDIA_TYPE_ATTACHMENT:
2926 case AVMEDIA_TYPE_UNKNOWN:
2927 break;
2928 default:
2929 abort();
2930 }
2931 }
2932 }
2933
2934 static int opt_input_file(const char *opt, const char *filename)
2935 {
2936 AVFormatContext *ic;
2937 AVInputFormat *file_iformat = NULL;
2938 int err, i, ret;
2939 int64_t timestamp;
2940 uint8_t buf[128];
2941 AVDictionary **opts;
2942 int orig_nb_streams; // number of streams before avformat_find_stream_info
2943
2944 if (last_asked_format) {
2945 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2946 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2947 exit_program(1);
2948 }
2949 last_asked_format = NULL;
2950 }
2951
2952 if (!strcmp(filename, "-"))
2953 filename = "pipe:";
2954
2955 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2956 !strcmp(filename, "/dev/stdin");
2957
2958 /* get default parameters from command line */
2959 ic = avformat_alloc_context();
2960 if (!ic) {
2961 print_error(filename, AVERROR(ENOMEM));
2962 exit_program(1);
2963 }
2964 if (audio_sample_rate) {
2965 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2966 av_dict_set(&format_opts, "sample_rate", buf, 0);
2967 }
2968 if (audio_channels) {
2969 snprintf(buf, sizeof(buf), "%d", audio_channels);
2970 av_dict_set(&format_opts, "channels", buf, 0);
2971 }
2972 if (frame_rate.num) {
2973 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2974 av_dict_set(&format_opts, "framerate", buf, 0);
2975 }
2976 if (frame_width && frame_height) {
2977 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2978 av_dict_set(&format_opts, "video_size", buf, 0);
2979 }
2980 if (frame_pix_fmt != PIX_FMT_NONE)
2981 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2982
2983 ic->flags |= AVFMT_FLAG_NONBLOCK;
2984
2985 /* open the input file with generic libav function */
2986 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2987 if (err < 0) {
2988 print_error(filename, err);
2989 exit_program(1);
2990 }
2991 assert_avoptions(format_opts);
2992
2993 if(opt_programid) {
2994 int i, j;
2995 int found=0;
2996 for(i=0; i<ic->nb_streams; i++){
2997 ic->streams[i]->discard= AVDISCARD_ALL;
2998 }
2999 for(i=0; i<ic->nb_programs; i++){
3000 AVProgram *p= ic->programs[i];
3001 if(p->id != opt_programid){
3002 p->discard = AVDISCARD_ALL;
3003 }else{
3004 found=1;
3005 for(j=0; j<p->nb_stream_indexes; j++){
3006 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3007 }
3008 }
3009 }
3010 if(!found){
3011 fprintf(stderr, "Specified program id not found\n");
3012 exit_program(1);
3013 }
3014 opt_programid=0;
3015 }
3016
3017 /* apply forced codec ids */
3018 for (i = 0; i < ic->nb_streams; i++)
3019 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3020
3021 /* Set AVCodecContext options for avformat_find_stream_info */
3022 opts = setup_find_stream_info_opts(ic, codec_opts);
3023 orig_nb_streams = ic->nb_streams;
3024
3025 /* If not enough info to get the stream parameters, we decode the
3026 first frames to get it. (used in mpeg case for example) */
3027 ret = avformat_find_stream_info(ic, opts);
3028 if (ret < 0 && verbose >= 0) {
3029 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3030 av_close_input_file(ic);
3031 exit_program(1);
3032 }
3033
3034 timestamp = start_time;
3035 /* add the stream start time */
3036 if (ic->start_time != AV_NOPTS_VALUE)
3037 timestamp += ic->start_time;
3038
3039 /* if seeking requested, we execute it */
3040 if (start_time != 0) {
3041 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3042 if (ret < 0) {
3043 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3044 filename, (double)timestamp / AV_TIME_BASE);
3045 }
3046 /* reset seek info */
3047 start_time = 0;
3048 }
3049
3050 /* update the current parameters so that they match the one of the input stream */
3051 add_input_streams(ic);
3052
3053 /* dump the file content */
3054 if (verbose >= 0)
3055 av_dump_format(ic, nb_input_files, filename, 0);
3056
3057 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3058 input_files[nb_input_files - 1].ctx = ic;
3059 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3060 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3061
3062 frame_rate = (AVRational){0, 0};
3063 frame_pix_fmt = PIX_FMT_NONE;
3064 frame_height = 0;
3065 frame_width = 0;
3066 audio_sample_rate = 0;
3067 audio_channels = 0;
3068 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3069 av_dict_free(&ts_scale);
3070
3071 for (i = 0; i < orig_nb_streams; i++)
3072 av_dict_free(&opts[i]);
3073 av_freep(&opts);
3074 av_dict_free(&codec_names);
3075 uninit_opts();
3076 init_opts();
3077 return 0;
3078 }
3079
3080 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3081 AVCodecContext *avctx)
3082 {
3083 char *p;
3084 int n = 1, i;
3085 int64_t t;
3086
3087 for (p = kf; *p; p++)
3088 if (*p == ',')
3089 n++;
3090 ost->forced_kf_count = n;
3091 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3092 if (!ost->forced_kf_pts) {
3093 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3094 exit_program(1);
3095 }
3096 for (i = 0; i < n; i++) {
3097 p = i ? strchr(p, ',') + 1 : kf;
3098 t = parse_time_or_die("force_key_frames", p, 1);
3099 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3100 }
3101 }
3102
3103 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3104 {
3105 OutputStream *ost;
3106 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3107 int idx = oc->nb_streams - 1;
3108
3109 if (!st) {
3110 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3111 exit_program(1);
3112 }
3113
3114 output_streams_for_file[nb_output_files] =
3115 grow_array(output_streams_for_file[nb_output_files],
3116 sizeof(*output_streams_for_file[nb_output_files]),
3117 &nb_output_streams_for_file[nb_output_files],
3118 oc->nb_streams);
3119 ost = output_streams_for_file[nb_output_files][idx] =
3120 av_mallocz(sizeof(OutputStream));
3121 if (!ost) {
3122 fprintf(stderr, "Could not alloc output stream\n");
3123 exit_program(1);
3124 }
3125 ost->file_index = nb_output_files;
3126 ost->index = idx;
3127 ost->st = st;
3128 st->codec->codec_type = type;
3129 ost->enc = choose_codec(oc, st, type, codec_names);
3130 if (ost->enc) {
3131 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3132 }
3133
3134 avcodec_get_context_defaults3(st->codec, ost->enc);
3135 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3136
3137 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3138 return ost;
3139 }
3140
3141 static OutputStream *new_video_stream(AVFormatContext *oc)
3142 {
3143 AVStream *st;
3144 OutputStream *ost;
3145 AVCodecContext *video_enc;
3146
3147 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3148 st = ost->st;
3149 if (!st->stream_copy) {
3150 ost->frame_aspect_ratio = frame_aspect_ratio;
3151 frame_aspect_ratio = 0;
3152 #if CONFIG_AVFILTER
3153 ost->avfilter= vfilters;
3154 vfilters = NULL;
3155 #endif
3156 }
3157
3158 ost->bitstream_filters = video_bitstream_filters;
3159 video_bitstream_filters= NULL;
3160
3161 st->codec->thread_count= thread_count;
3162
3163 video_enc = st->codec;
3164
3165 if(video_codec_tag)
3166 video_enc->codec_tag= video_codec_tag;
3167
3168 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3169 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3170 }