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