avconv: rescue poor abused limit_filesize global.
[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 static const char *last_asked_format = NULL;
101 static AVDictionary *ts_scale;
102
103 static StreamMap *stream_maps = NULL;
104 static int nb_stream_maps;
105
106 static AVDictionary *codec_names;
107
108 /* first item specifies output metadata, second is input */
109 static MetadataMap (*meta_data_maps)[2] = NULL;
110 static int nb_meta_data_maps;
111 static int metadata_global_autocopy = 1;
112 static int metadata_streams_autocopy = 1;
113 static int metadata_chapters_autocopy = 1;
114
115 static int chapters_input_file = INT_MAX;
116
117 /* indexed by output file stream index */
118 static int *streamid_map = NULL;
119 static int nb_streamid_map = 0;
120
121 static int frame_width = 0;
122 static int frame_height = 0;
123 static float frame_aspect_ratio = 0;
124 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
125 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
126 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
127 static AVRational frame_rate;
128 static float video_qscale = 0;
129 static uint16_t *intra_matrix = NULL;
130 static uint16_t *inter_matrix = NULL;
131 static const char *video_rc_override_string=NULL;
132 static int video_disable = 0;
133 static int video_discard = 0;
134 static unsigned int video_codec_tag = 0;
135 static char *video_language = NULL;
136 static int same_quant = 0;
137 static int do_deinterlace = 0;
138 static int top_field_first = -1;
139 static int me_threshold = 0;
140 static int intra_dc_precision = 8;
141 static int qp_hist = 0;
142 #if CONFIG_AVFILTER
143 static char *vfilters = NULL;
144 #endif
145
146 static int audio_sample_rate = 0;
147 #define QSCALE_NONE -99999
148 static float audio_qscale = QSCALE_NONE;
149 static int audio_disable = 0;
150 static int audio_channels = 0;
151 static unsigned int audio_codec_tag = 0;
152 static char *audio_language = NULL;
153
154 static int subtitle_disable = 0;
155 static char *subtitle_language = NULL;
156 static unsigned int subtitle_codec_tag = 0;
157
158 static int data_disable = 0;
159 static unsigned int data_codec_tag = 0;
160
161 static float mux_preload= 0.5;
162 static float mux_max_delay= 0.7;
163
164 static int64_t recording_time = INT64_MAX;
165 static int64_t start_time = 0;
166 static int64_t input_ts_offset = 0;
167 static int file_overwrite = 0;
168 static AVDictionary *metadata;
169 static int do_benchmark = 0;
170 static int do_hex_dump = 0;
171 static int do_pkt_dump = 0;
172 static int do_psnr = 0;
173 static int do_pass = 0;
174 static char *pass_logfilename_prefix = NULL;
175 static int video_sync_method= -1;
176 static int audio_sync_method= 0;
177 static float audio_drift_threshold= 0.1;
178 static int copy_ts= 0;
179 static int copy_tb;
180 static int opt_shortest = 0;
181 static char *vstats_filename;
182 static FILE *vstats_file;
183 static int opt_programid = 0;
184 static int copy_initial_nonkeyframes = 0;
185
186 static int rate_emu = 0;
187
188 static int audio_volume = 256;
189
190 static int exit_on_error = 0;
191 static int using_stdin = 0;
192 static int verbose = 1;
193 static int thread_count= 1;
194 static int64_t video_size = 0;
195 static int64_t audio_size = 0;
196 static int64_t extra_size = 0;
197 static int nb_frames_dup = 0;
198 static int nb_frames_drop = 0;
199 static int input_sync;
200 static uint64_t limit_filesize = UINT64_MAX;
201 static int force_fps = 0;
202 static char *forced_key_frames = NULL;
203
204 static float dts_delta_threshold = 10;
205
206 static uint8_t *audio_buf;
207 static uint8_t *audio_out;
208 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
209
210 static short *samples;
211
212 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
213 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
214 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
215
216 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
217
218 typedef struct InputStream {
219 int file_index;
220 AVStream *st;
221 int discard; /* true if stream data should be discarded */
222 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
223 AVCodec *dec;
224
225 int64_t start; /* time when read started */
226 int64_t next_pts; /* synthetic pts for cases where pkt.pts
227 is not defined */
228 int64_t pts; /* current pts */
229 PtsCorrectionContext pts_ctx;
230 double ts_scale;
231 int is_start; /* is 1 at the start and after a discontinuity */
232 int showed_multi_packet_warning;
233 AVDictionary *opts;
234 } InputStream;
235
236 typedef struct InputFile {
237 AVFormatContext *ctx;
238 int eof_reached; /* true if eof reached */
239 int ist_index; /* index of first stream in ist_table */
240 int buffer_size; /* current total buffer size */
241 int64_t ts_offset;
242 } InputFile;
243
244 typedef struct OutputStream {
245 int file_index; /* file index */
246 int index; /* stream index in the output file */
247 int source_index; /* InputStream index */
248 AVStream *st; /* stream in the output file */
249 int encoding_needed; /* true if encoding needed for this stream */
250 int frame_number;
251 /* input pts and corresponding output pts
252 for A/V sync */
253 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
254 struct InputStream *sync_ist; /* input stream to sync against */
255 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
256 AVBitStreamFilterContext *bitstream_filters;
257 AVCodec *enc;
258
259 /* video only */
260 int video_resample;
261 AVFrame pict_tmp; /* temporary image for resampling */
262 struct SwsContext *img_resample_ctx; /* for image resampling */
263 int resample_height;
264 int resample_width;
265 int resample_pix_fmt;
266 AVRational frame_rate;
267
268 float frame_aspect_ratio;
269
270 /* forced key frames */
271 int64_t *forced_kf_pts;
272 int forced_kf_count;
273 int forced_kf_index;
274
275 /* audio only */
276 int audio_resample;
277 ReSampleContext *resample; /* for audio resampling */
278 int resample_sample_fmt;
279 int resample_channels;
280 int resample_sample_rate;
281 int reformat_pair;
282 AVAudioConvert *reformat_ctx;
283 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
284 FILE *logfile;
285
286 #if CONFIG_AVFILTER
287 AVFilterContext *output_video_filter;
288 AVFilterContext *input_video_filter;
289 AVFilterBufferRef *picref;
290 char *avfilter;
291 AVFilterGraph *graph;
292 #endif
293
294 int sws_flags;
295 AVDictionary *opts;
296 int is_past_recording_time;
297 } OutputStream;
298
299
300 typedef struct OutputFile {
301 AVFormatContext *ctx;
302 AVDictionary *opts;
303 int ost_index; /* index of the first stream in output_streams */
304 int64_t recording_time; /* desired length of the resulting file in microseconds */
305 int64_t start_time; /* start time in microseconds */
306 uint64_t limit_filesize;
307 } OutputFile;
308
309 static InputStream *input_streams = NULL;
310 static int nb_input_streams = 0;
311 static InputFile *input_files = NULL;
312 static int nb_input_files = 0;
313
314 static OutputStream *output_streams = NULL;
315 static int nb_output_streams = 0;
316 static OutputFile *output_files = NULL;
317 static int nb_output_files = 0;
318
319 #if CONFIG_AVFILTER
320
321 static int configure_video_filters(InputStream *ist, OutputStream *ost)
322 {
323 AVFilterContext *last_filter, *filter;
324 /** filter graph containing all filters including input & output */
325 AVCodecContext *codec = ost->st->codec;
326 AVCodecContext *icodec = ist->st->codec;
327 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
328 AVRational sample_aspect_ratio;
329 char args[255];
330 int ret;
331
332 ost->graph = avfilter_graph_alloc();
333
334 if (ist->st->sample_aspect_ratio.num){
335 sample_aspect_ratio = ist->st->sample_aspect_ratio;
336 }else
337 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
338
339 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
340 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
341 sample_aspect_ratio.num, sample_aspect_ratio.den);
342
343 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
344 "src", args, NULL, ost->graph);
345 if (ret < 0)
346 return ret;
347 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
348 "out", NULL, &ffsink_ctx, ost->graph);
349 if (ret < 0)
350 return ret;
351 last_filter = ost->input_video_filter;
352
353 if (codec->width != icodec->width || codec->height != icodec->height) {
354 snprintf(args, 255, "%d:%d:flags=0x%X",
355 codec->width,
356 codec->height,
357 ost->sws_flags);
358 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
359 NULL, args, NULL, ost->graph)) < 0)
360 return ret;
361 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
362 return ret;
363 last_filter = filter;
364 }
365
366 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
367 ost->graph->scale_sws_opts = av_strdup(args);
368
369 if (ost->avfilter) {
370 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
371 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
372
373 outputs->name = av_strdup("in");
374 outputs->filter_ctx = last_filter;
375 outputs->pad_idx = 0;
376 outputs->next = NULL;
377
378 inputs->name = av_strdup("out");
379 inputs->filter_ctx = ost->output_video_filter;
380 inputs->pad_idx = 0;
381 inputs->next = NULL;
382
383 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
384 return ret;
385 av_freep(&ost->avfilter);
386 } else {
387 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
388 return ret;
389 }
390
391 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
392 return ret;
393
394 codec->width = ost->output_video_filter->inputs[0]->w;
395 codec->height = ost->output_video_filter->inputs[0]->h;
396 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
397 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
398 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
399 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
400
401 return 0;
402 }
403 #endif /* CONFIG_AVFILTER */
404
405 static void term_exit(void)
406 {
407 av_log(NULL, AV_LOG_QUIET, "");
408 }
409
410 static volatile int received_sigterm = 0;
411 static volatile int received_nb_signals = 0;
412
413 static void
414 sigterm_handler(int sig)
415 {
416 received_sigterm = sig;
417 received_nb_signals++;
418 term_exit();
419 }
420
421 static void term_init(void)
422 {
423 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
424 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
425 #ifdef SIGXCPU
426 signal(SIGXCPU, sigterm_handler);
427 #endif
428 }
429
430 static int decode_interrupt_cb(void)
431 {
432 return received_nb_signals > 1;
433 }
434
435 static int exit_program(int ret)
436 {
437 int i;
438
439 /* close files */
440 for(i=0;i<nb_output_files;i++) {
441 AVFormatContext *s = output_files[i].ctx;
442 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
443 avio_close(s->pb);
444 avformat_free_context(s);
445 av_dict_free(&output_files[i].opts);
446 }
447 for(i=0;i<nb_input_files;i++) {
448 av_close_input_file(input_files[i].ctx);
449 }
450 for (i = 0; i < nb_input_streams; i++)
451 av_dict_free(&input_streams[i].opts);
452
453 av_free(intra_matrix);
454 av_free(inter_matrix);
455
456 if (vstats_file)
457 fclose(vstats_file);
458 av_free(vstats_filename);
459
460 av_free(meta_data_maps);
461
462 av_freep(&input_streams);
463 av_freep(&input_files);
464 av_freep(&output_streams);
465 av_freep(&output_files);
466
467 uninit_opts();
468 av_free(audio_buf);
469 av_free(audio_out);
470 allocated_audio_buf_size= allocated_audio_out_size= 0;
471 av_free(samples);
472
473 #if CONFIG_AVFILTER
474 avfilter_uninit();
475 #endif
476
477 if (received_sigterm) {
478 fprintf(stderr,
479 "Received signal %d: terminating.\n",
480 (int) received_sigterm);
481 exit (255);
482 }
483
484 exit(ret); /* not all OS-es handle main() return value */
485 return ret;
486 }
487
488 static void assert_avoptions(AVDictionary *m)
489 {
490 AVDictionaryEntry *t;
491 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
493 exit_program(1);
494 }
495 }
496
497 static void assert_codec_experimental(AVCodecContext *c, int encoder)
498 {
499 const char *codec_string = encoder ? "encoder" : "decoder";
500 AVCodec *codec;
501 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
502 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
503 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
504 "results.\nAdd '-strict experimental' if you want to use it.\n",
505 codec_string, c->codec->name);
506 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
507 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
508 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
509 codec_string, codec->name);
510 exit_program(1);
511 }
512 }
513
514 /* similar to ff_dynarray_add() and av_fast_realloc() */
515 static void *grow_array(void *array, int elem_size, int *size, int new_size)
516 {
517 if (new_size >= INT_MAX / elem_size) {
518 fprintf(stderr, "Array too big.\n");
519 exit_program(1);
520 }
521 if (*size < new_size) {
522 uint8_t *tmp = av_realloc(array, new_size*elem_size);
523 if (!tmp) {
524 fprintf(stderr, "Could not alloc buffer.\n");
525 exit_program(1);
526 }
527 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
528 *size = new_size;
529 return tmp;
530 }
531 return array;
532 }
533
534 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
535 {
536 if(codec && codec->sample_fmts){
537 const enum AVSampleFormat *p= codec->sample_fmts;
538 for(; *p!=-1; p++){
539 if(*p == st->codec->sample_fmt)
540 break;
541 }
542 if (*p == -1) {
543 av_log(NULL, AV_LOG_WARNING,
544 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
545 av_get_sample_fmt_name(st->codec->sample_fmt),
546 codec->name,
547 av_get_sample_fmt_name(codec->sample_fmts[0]));
548 st->codec->sample_fmt = codec->sample_fmts[0];
549 }
550 }
551 }
552
553 /**
554 * Update the requested input sample format based on the output sample format.
555 * This is currently only used to request float output from decoders which
556 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
557 * Ideally this will be removed in the future when decoders do not do format
558 * conversion and only output in their native format.
559 */
560 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
561 AVCodecContext *enc)
562 {
563 /* if sample formats match or a decoder sample format has already been
564 requested, just return */
565 if (enc->sample_fmt == dec->sample_fmt ||
566 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
567 return;
568
569 /* if decoder supports more than one output format */
570 if (dec_codec && dec_codec->sample_fmts &&
571 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
572 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
573 const enum AVSampleFormat *p;
574 int min_dec = -1, min_inc = -1;
575
576 /* find a matching sample format in the encoder */
577 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
578 if (*p == enc->sample_fmt) {
579 dec->request_sample_fmt = *p;
580 return;
581 } else if (*p > enc->sample_fmt) {
582 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
583 } else
584 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
585 }
586
587 /* if none match, provide the one that matches quality closest */
588 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
589 enc->sample_fmt - min_dec;
590 }
591 }
592
593 static void choose_sample_rate(AVStream *st, AVCodec *codec)
594 {
595 if(codec && codec->supported_samplerates){
596 const int *p= codec->supported_samplerates;
597 int best=0;
598 int best_dist=INT_MAX;
599 for(; *p; p++){
600 int dist= abs(st->codec->sample_rate - *p);
601 if(dist < best_dist){
602 best_dist= dist;
603 best= *p;
604 }
605 }
606 if(best_dist){
607 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
608 }
609 st->codec->sample_rate= best;
610 }
611 }
612
613 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
614 {
615 if(codec && codec->pix_fmts){
616 const enum PixelFormat *p= codec->pix_fmts;
617 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
618 if(st->codec->codec_id==CODEC_ID_MJPEG){
619 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
620 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
621 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};
622 }
623 }
624 for(; *p!=-1; p++){
625 if(*p == st->codec->pix_fmt)
626 break;
627 }
628 if (*p == -1) {
629 if(st->codec->pix_fmt != PIX_FMT_NONE)
630 av_log(NULL, AV_LOG_WARNING,
631 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
632 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
633 codec->name,
634 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
635 st->codec->pix_fmt = codec->pix_fmts[0];
636 }
637 }
638 }
639
640 static double
641 get_sync_ipts(const OutputStream *ost)
642 {
643 const InputStream *ist = ost->sync_ist;
644 OutputFile *of = &output_files[ost->file_index];
645 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
646 }
647
648 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
649 int ret;
650
651 while(bsfc){
652 AVPacket new_pkt= *pkt;
653 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
654 &new_pkt.data, &new_pkt.size,
655 pkt->data, pkt->size,
656 pkt->flags & AV_PKT_FLAG_KEY);
657 if(a>0){
658 av_free_packet(pkt);
659 new_pkt.destruct= av_destruct_packet;
660 } else if(a<0){
661 fprintf(stderr, "%s failed for stream %d, codec %s",
662 bsfc->filter->name, pkt->stream_index,
663 avctx->codec ? avctx->codec->name : "copy");
664 print_error("", a);
665 if (exit_on_error)
666 exit_program(1);
667 }
668 *pkt= new_pkt;
669
670 bsfc= bsfc->next;
671 }
672
673 ret= av_interleaved_write_frame(s, pkt);
674 if(ret < 0){
675 print_error("av_interleaved_write_frame()", ret);
676 exit_program(1);
677 }
678 }
679
680 static void do_audio_out(AVFormatContext *s,
681 OutputStream *ost,
682 InputStream *ist,
683 unsigned char *buf, int size)
684 {
685 uint8_t *buftmp;
686 int64_t audio_out_size, audio_buf_size;
687 int64_t allocated_for_size= size;
688
689 int size_out, frame_bytes, ret, resample_changed;
690 AVCodecContext *enc= ost->st->codec;
691 AVCodecContext *dec= ist->st->codec;
692 int osize = av_get_bytes_per_sample(enc->sample_fmt);
693 int isize = av_get_bytes_per_sample(dec->sample_fmt);
694 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
695
696 need_realloc:
697 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
698 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
699 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
700 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
701 audio_buf_size*= osize*enc->channels;
702
703 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
704 if(coded_bps > 8*osize)
705 audio_out_size= audio_out_size * coded_bps / (8*osize);
706 audio_out_size += FF_MIN_BUFFER_SIZE;
707
708 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
709 fprintf(stderr, "Buffer sizes too large\n");
710 exit_program(1);
711 }
712
713 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
714 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
715 if (!audio_buf || !audio_out){
716 fprintf(stderr, "Out of memory in do_audio_out\n");
717 exit_program(1);
718 }
719
720 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
721 ost->audio_resample = 1;
722
723 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
724 ost->resample_channels != dec->channels ||
725 ost->resample_sample_rate != dec->sample_rate;
726
727 if ((ost->audio_resample && !ost->resample) || resample_changed) {
728 if (resample_changed) {
729 av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
730 ist->file_index, ist->st->index,
731 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
732 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
733 ost->resample_sample_fmt = dec->sample_fmt;
734 ost->resample_channels = dec->channels;
735 ost->resample_sample_rate = dec->sample_rate;
736 if (ost->resample)
737 audio_resample_close(ost->resample);
738 }
739 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
740 if (audio_sync_method <= 1 &&
741 ost->resample_sample_fmt == enc->sample_fmt &&
742 ost->resample_channels == enc->channels &&
743 ost->resample_sample_rate == enc->sample_rate) {
744 ost->resample = NULL;
745 ost->audio_resample = 0;
746 } else if (ost->audio_resample) {
747 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
748 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
749 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
750 enc->sample_rate, dec->sample_rate,
751 enc->sample_fmt, dec->sample_fmt,
752 16, 10, 0, 0.8);
753 if (!ost->resample) {
754 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
755 dec->channels, dec->sample_rate,
756 enc->channels, enc->sample_rate);
757 exit_program(1);
758 }
759 }
760 }
761
762 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
763 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
764 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
765 if (ost->reformat_ctx)
766 av_audio_convert_free(ost->reformat_ctx);
767 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
768 dec->sample_fmt, 1, NULL, 0);
769 if (!ost->reformat_ctx) {
770 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
771 av_get_sample_fmt_name(dec->sample_fmt),
772 av_get_sample_fmt_name(enc->sample_fmt));
773 exit_program(1);
774 }
775 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
776 }
777
778 if(audio_sync_method){
779 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
780 - av_fifo_size(ost->fifo)/(enc->channels * 2);
781 double idelta= delta*dec->sample_rate / enc->sample_rate;
782 int byte_delta= ((int)idelta)*2*dec->channels;
783
784 //FIXME resample delay
785 if(fabs(delta) > 50){
786 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
787 if(byte_delta < 0){
788 byte_delta= FFMAX(byte_delta, -size);
789 size += byte_delta;
790 buf -= byte_delta;
791 if(verbose > 2)
792 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
793 if(!size)
794 return;
795 ist->is_start=0;
796 }else{
797 static uint8_t *input_tmp= NULL;
798 input_tmp= av_realloc(input_tmp, byte_delta + size);
799
800 if(byte_delta > allocated_for_size - size){
801 allocated_for_size= byte_delta + (int64_t)size;
802 goto need_realloc;
803 }
804 ist->is_start=0;
805
806 memset(input_tmp, 0, byte_delta);
807 memcpy(input_tmp + byte_delta, buf, size);
808 buf= input_tmp;
809 size += byte_delta;
810 if(verbose > 2)
811 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
812 }
813 }else if(audio_sync_method>1){
814 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
815 av_assert0(ost->audio_resample);
816 if(verbose > 2)
817 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
818 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
819 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
820 }
821 }
822 }else
823 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
824 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
825
826 if (ost->audio_resample) {
827 buftmp = audio_buf;
828 size_out = audio_resample(ost->resample,
829 (short *)buftmp, (short *)buf,
830 size / (dec->channels * isize));
831 size_out = size_out * enc->channels * osize;
832 } else {
833 buftmp = buf;
834 size_out = size;
835 }
836
837 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
838 const void *ibuf[6]= {buftmp};
839 void *obuf[6]= {audio_buf};
840 int istride[6]= {isize};
841 int ostride[6]= {osize};
842 int len= size_out/istride[0];
843 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
844 printf("av_audio_convert() failed\n");
845 if (exit_on_error)
846 exit_program(1);
847 return;
848 }
849 buftmp = audio_buf;
850 size_out = len*osize;
851 }
852
853 /* now encode as many frames as possible */
854 if (enc->frame_size > 1) {
855 /* output resampled raw samples */
856 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
857 fprintf(stderr, "av_fifo_realloc2() failed\n");
858 exit_program(1);
859 }
860 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
861
862 frame_bytes = enc->frame_size * osize * enc->channels;
863
864 while (av_fifo_size(ost->fifo) >= frame_bytes) {
865 AVPacket pkt;
866 av_init_packet(&pkt);
867
868 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
869
870 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
871
872 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
873 (short *)audio_buf);
874 if (ret < 0) {
875 fprintf(stderr, "Audio encoding failed\n");
876 exit_program(1);
877 }
878 audio_size += ret;
879 pkt.stream_index= ost->index;
880 pkt.data= audio_out;
881 pkt.size= ret;
882 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
883 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
884 pkt.flags |= AV_PKT_FLAG_KEY;
885 write_frame(s, &pkt, enc, ost->bitstream_filters);
886
887 ost->sync_opts += enc->frame_size;
888 }
889 } else {
890 AVPacket pkt;
891 av_init_packet(&pkt);
892
893 ost->sync_opts += size_out / (osize * enc->channels);
894
895 /* output a pcm frame */
896 /* determine the size of the coded buffer */
897 size_out /= osize;
898 if (coded_bps)
899 size_out = size_out*coded_bps/8;
900
901 if(size_out > audio_out_size){
902 fprintf(stderr, "Internal error, buffer size too small\n");
903 exit_program(1);
904 }
905
906 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907 ret = avcodec_encode_audio(enc, audio_out, size_out,
908 (short *)buftmp);
909 if (ret < 0) {
910 fprintf(stderr, "Audio encoding failed\n");
911 exit_program(1);
912 }
913 audio_size += ret;
914 pkt.stream_index= ost->index;
915 pkt.data= audio_out;
916 pkt.size= ret;
917 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
918 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
919 pkt.flags |= AV_PKT_FLAG_KEY;
920 write_frame(s, &pkt, enc, ost->bitstream_filters);
921 }
922 }
923
924 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
925 {
926 AVCodecContext *dec;
927 AVPicture *picture2;
928 AVPicture picture_tmp;
929 uint8_t *buf = 0;
930
931 dec = ist->st->codec;
932
933 /* deinterlace : must be done before any resize */
934 if (do_deinterlace) {
935 int size;
936
937 /* create temporary picture */
938 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
939 buf = av_malloc(size);
940 if (!buf)
941 return;
942
943 picture2 = &picture_tmp;
944 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
945
946 if(avpicture_deinterlace(picture2, picture,
947 dec->pix_fmt, dec->width, dec->height) < 0) {
948 /* if error, do not deinterlace */
949 fprintf(stderr, "Deinterlacing failed\n");
950 av_free(buf);
951 buf = NULL;
952 picture2 = picture;
953 }
954 } else {
955 picture2 = picture;
956 }
957
958 if (picture != picture2)
959 *picture = *picture2;
960 *bufp = buf;
961 }
962
963 static void do_subtitle_out(AVFormatContext *s,
964 OutputStream *ost,
965 InputStream *ist,
966 AVSubtitle *sub,
967 int64_t pts)
968 {
969 static uint8_t *subtitle_out = NULL;
970 int subtitle_out_max_size = 1024 * 1024;
971 int subtitle_out_size, nb, i;
972 AVCodecContext *enc;
973 AVPacket pkt;
974
975 if (pts == AV_NOPTS_VALUE) {
976 fprintf(stderr, "Subtitle packets must have a pts\n");
977 if (exit_on_error)
978 exit_program(1);
979 return;
980 }
981
982 enc = ost->st->codec;
983
984 if (!subtitle_out) {
985 subtitle_out = av_malloc(subtitle_out_max_size);
986 }
987
988 /* Note: DVB subtitle need one packet to draw them and one other
989 packet to clear them */
990 /* XXX: signal it in the codec context ? */
991 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
992 nb = 2;
993 else
994 nb = 1;
995
996 for(i = 0; i < nb; i++) {
997 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
998 // start_display_time is required to be 0
999 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1000 sub->end_display_time -= sub->start_display_time;
1001 sub->start_display_time = 0;
1002 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1003 subtitle_out_max_size, sub);
1004 if (subtitle_out_size < 0) {
1005 fprintf(stderr, "Subtitle encoding failed\n");
1006 exit_program(1);
1007 }
1008
1009 av_init_packet(&pkt);
1010 pkt.stream_index = ost->index;
1011 pkt.data = subtitle_out;
1012 pkt.size = subtitle_out_size;
1013 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1014 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1015 /* XXX: the pts correction is handled here. Maybe handling
1016 it in the codec would be better */
1017 if (i == 0)
1018 pkt.pts += 90 * sub->start_display_time;
1019 else
1020 pkt.pts += 90 * sub->end_display_time;
1021 }
1022 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1023 }
1024 }
1025
1026 static int bit_buffer_size= 1024*256;
1027 static uint8_t *bit_buffer= NULL;
1028
1029 static void do_video_resample(OutputStream *ost,
1030 InputStream *ist,
1031 AVFrame *in_picture,
1032 AVFrame **out_picture)
1033 {
1034 int resample_changed = 0;
1035 AVCodecContext *dec = ist->st->codec;
1036 *out_picture = in_picture;
1037
1038 resample_changed = ost->resample_width != dec->width ||
1039 ost->resample_height != dec->height ||
1040 ost->resample_pix_fmt != dec->pix_fmt;
1041
1042 if (resample_changed) {
1043 av_log(NULL, AV_LOG_INFO,
1044 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1045 ist->file_index, ist->st->index,
1046 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1047 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1048 if(!ost->video_resample)
1049 ost->video_resample = 1;
1050 }
1051
1052 #if !CONFIG_AVFILTER
1053 if (ost->video_resample) {
1054 *out_picture = &ost->pict_tmp;
1055 if (resample_changed) {
1056 /* initialize a new scaler context */
1057 sws_freeContext(ost->img_resample_ctx);
1058 ost->img_resample_ctx = sws_getContext(
1059 ist->st->codec->width,
1060 ist->st->codec->height,
1061 ist->st->codec->pix_fmt,
1062 ost->st->codec->width,
1063 ost->st->codec->height,
1064 ost->st->codec->pix_fmt,
1065 ost->sws_flags, NULL, NULL, NULL);
1066 if (ost->img_resample_ctx == NULL) {
1067 fprintf(stderr, "Cannot get resampling context\n");
1068 exit_program(1);
1069 }
1070 }
1071 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1072 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1073 }
1074 #else
1075 if (resample_changed) {
1076 avfilter_graph_free(&ost->graph);
1077 if (configure_video_filters(ist, ost)) {
1078 fprintf(stderr, "Error reinitializing filters!\n");
1079 exit_program(1);
1080 }
1081 }
1082 #endif
1083 if (resample_changed) {
1084 ost->resample_width = dec->width;
1085 ost->resample_height = dec->height;
1086 ost->resample_pix_fmt = dec->pix_fmt;
1087 }
1088 }
1089
1090
1091 static void do_video_out(AVFormatContext *s,
1092 OutputStream *ost,
1093 InputStream *ist,
1094 AVFrame *in_picture,
1095 int *frame_size, float quality)
1096 {
1097 int nb_frames, i, ret, format_video_sync;
1098 AVFrame *final_picture;
1099 AVCodecContext *enc, *dec;
1100 double sync_ipts;
1101
1102 enc = ost->st->codec;
1103 dec = ist->st->codec;
1104
1105 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1106
1107 /* by default, we output a single frame */
1108 nb_frames = 1;
1109
1110 *frame_size = 0;
1111
1112 format_video_sync = video_sync_method;
1113 if (format_video_sync < 0)
1114 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1115
1116 if (format_video_sync) {
1117 double vdelta = sync_ipts - ost->sync_opts;
1118 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1119 if (vdelta < -1.1)
1120 nb_frames = 0;
1121 else if (format_video_sync == 2) {
1122 if(vdelta<=-0.6){
1123 nb_frames=0;
1124 }else if(vdelta>0.6)
1125 ost->sync_opts= lrintf(sync_ipts);
1126 }else if (vdelta > 1.1)
1127 nb_frames = lrintf(vdelta);
1128 //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);
1129 if (nb_frames == 0){
1130 ++nb_frames_drop;
1131 if (verbose>2)
1132 fprintf(stderr, "*** drop!\n");
1133 }else if (nb_frames > 1) {
1134 nb_frames_dup += nb_frames - 1;
1135 if (verbose>2)
1136 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1137 }
1138 }else
1139 ost->sync_opts= lrintf(sync_ipts);
1140
1141 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1142 if (nb_frames <= 0)
1143 return;
1144
1145 do_video_resample(ost, ist, in_picture, &final_picture);
1146
1147 /* duplicates frame if needed */
1148 for(i=0;i<nb_frames;i++) {
1149 AVPacket pkt;
1150 av_init_packet(&pkt);
1151 pkt.stream_index= ost->index;
1152
1153 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1154 /* raw pictures are written as AVPicture structure to
1155 avoid any copies. We support temporarily the older
1156 method. */
1157 AVFrame* old_frame = enc->coded_frame;
1158 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1159 pkt.data= (uint8_t *)final_picture;
1160 pkt.size= sizeof(AVPicture);
1161 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1162 pkt.flags |= AV_PKT_FLAG_KEY;
1163
1164 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1165 enc->coded_frame = old_frame;
1166 } else {
1167 AVFrame big_picture;
1168
1169 big_picture= *final_picture;
1170 /* better than nothing: use input picture interlaced
1171 settings */
1172 big_picture.interlaced_frame = in_picture->interlaced_frame;
1173 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1174 if(top_field_first == -1)
1175 big_picture.top_field_first = in_picture->top_field_first;
1176 else
1177 big_picture.top_field_first = top_field_first;
1178 }
1179
1180 /* handles same_quant here. This is not correct because it may
1181 not be a global option */
1182 big_picture.quality = quality;
1183 if(!me_threshold)
1184 big_picture.pict_type = 0;
1185 // big_picture.pts = AV_NOPTS_VALUE;
1186 big_picture.pts= ost->sync_opts;
1187 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1188 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1189 if (ost->forced_kf_index < ost->forced_kf_count &&
1190 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1191 big_picture.pict_type = AV_PICTURE_TYPE_I;
1192 ost->forced_kf_index++;
1193 }
1194 ret = avcodec_encode_video(enc,
1195 bit_buffer, bit_buffer_size,
1196 &big_picture);
1197 if (ret < 0) {
1198 fprintf(stderr, "Video encoding failed\n");
1199 exit_program(1);
1200 }
1201
1202 if(ret>0){
1203 pkt.data= bit_buffer;
1204 pkt.size= ret;
1205 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1206 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1207 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1208 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1209 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1210
1211 if(enc->coded_frame->key_frame)
1212 pkt.flags |= AV_PKT_FLAG_KEY;
1213 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1214 *frame_size = ret;
1215 video_size += ret;
1216 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1217 // enc->frame_number-1, ret, enc->pict_type);
1218 /* if two pass, output log */
1219 if (ost->logfile && enc->stats_out) {
1220 fprintf(ost->logfile, "%s", enc->stats_out);
1221 }
1222 }
1223 }
1224 ost->sync_opts++;
1225 ost->frame_number++;
1226 }
1227 }
1228
1229 static double psnr(double d){
1230 return -10.0*log(d)/log(10.0);
1231 }
1232
1233 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1234 int frame_size)
1235 {
1236 AVCodecContext *enc;
1237 int frame_number;
1238 double ti1, bitrate, avg_bitrate;
1239
1240 /* this is executed just the first time do_video_stats is called */
1241 if (!vstats_file) {
1242 vstats_file = fopen(vstats_filename, "w");
1243 if (!vstats_file) {
1244 perror("fopen");
1245 exit_program(1);
1246 }
1247 }
1248
1249 enc = ost->st->codec;
1250 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1251 frame_number = ost->frame_number;
1252 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1253 if (enc->flags&CODEC_FLAG_PSNR)
1254 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1255
1256 fprintf(vstats_file,"f_size= %6d ", frame_size);
1257 /* compute pts value */
1258 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1259 if (ti1 < 0.01)
1260 ti1 = 0.01;
1261
1262 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1263 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1264 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1265 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1266 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1267 }
1268 }
1269
1270 static void print_report(OutputFile *output_files,
1271 OutputStream *ost_table, int nb_ostreams,
1272 int is_last_report, int64_t timer_start)
1273 {
1274 char buf[1024];
1275 OutputStream *ost;
1276 AVFormatContext *oc;
1277 int64_t total_size;
1278 AVCodecContext *enc;
1279 int frame_number, vid, i;
1280 double bitrate, ti1, pts;
1281 static int64_t last_time = -1;
1282 static int qp_histogram[52];
1283
1284 if (!is_last_report) {
1285 int64_t cur_time;
1286 /* display the report every 0.5 seconds */
1287 cur_time = av_gettime();
1288 if (last_time == -1) {
1289 last_time = cur_time;
1290 return;
1291 }
1292 if ((cur_time - last_time) < 500000)
1293 return;
1294 last_time = cur_time;
1295 }
1296
1297
1298 oc = output_files[0].ctx;
1299
1300 total_size = avio_size(oc->pb);
1301 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1302 total_size= avio_tell(oc->pb);
1303
1304 buf[0] = '\0';
1305 ti1 = 1e10;
1306 vid = 0;
1307 for(i=0;i<nb_ostreams;i++) {
1308 float q = -1;
1309 ost = &ost_table[i];
1310 enc = ost->st->codec;
1311 if (!ost->st->stream_copy && enc->coded_frame)
1312 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1313 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1314 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1315 }
1316 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1317 float t = (av_gettime()-timer_start) / 1000000.0;
1318
1319 frame_number = ost->frame_number;
1320 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1321 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1322 if(is_last_report)
1323 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1324 if(qp_hist){
1325 int j;
1326 int qp = lrintf(q);
1327 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1328 qp_histogram[qp]++;
1329 for(j=0; j<32; j++)
1330 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1331 }
1332 if (enc->flags&CODEC_FLAG_PSNR){
1333 int j;
1334 double error, error_sum=0;
1335 double scale, scale_sum=0;
1336 char type[3]= {'Y','U','V'};
1337 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1338 for(j=0; j<3; j++){
1339 if(is_last_report){
1340 error= enc->error[j];
1341 scale= enc->width*enc->height*255.0*255.0*frame_number;
1342 }else{
1343 error= enc->coded_frame->error[j];
1344 scale= enc->width*enc->height*255.0*255.0;
1345 }
1346 if(j) scale/=4;
1347 error_sum += error;
1348 scale_sum += scale;
1349 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1350 }
1351 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1352 }
1353 vid = 1;
1354 }
1355 /* compute min output value */
1356 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1357 if ((pts < ti1) && (pts > 0))
1358 ti1 = pts;
1359 }
1360 if (ti1 < 0.01)
1361 ti1 = 0.01;
1362
1363 if (verbose > 0 || is_last_report) {
1364 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1365
1366 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1367 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1368 (double)total_size / 1024, ti1, bitrate);
1369
1370 if (nb_frames_dup || nb_frames_drop)
1371 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1372 nb_frames_dup, nb_frames_drop);
1373
1374 if (verbose >= 0)
1375 fprintf(stderr, "%s \r", buf);
1376
1377 fflush(stderr);
1378 }
1379
1380 if (is_last_report && verbose >= 0){
1381 int64_t raw= audio_size + video_size + extra_size;
1382 fprintf(stderr, "\n");
1383 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1384 video_size/1024.0,
1385 audio_size/1024.0,
1386 extra_size/1024.0,
1387 100.0*(total_size - raw)/raw
1388 );
1389 }
1390 }
1391
1392 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1393 {
1394 int fill_char = 0x00;
1395 if (sample_fmt == AV_SAMPLE_FMT_U8)
1396 fill_char = 0x80;
1397 memset(buf, fill_char, size);
1398 }
1399
1400 static void flush_encoders(int ist_index, OutputStream *ost_table, int nb_ostreams)
1401 {
1402 int i, ret;
1403
1404 for (i = 0; i < nb_ostreams; i++) {
1405 OutputStream *ost = &ost_table[i];
1406 AVCodecContext *enc = ost->st->codec;
1407 AVFormatContext *os = output_files[ost->file_index].ctx;
1408
1409 if (ost->source_index != ist_index || !ost->encoding_needed)
1410 continue;
1411
1412 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1413 continue;
1414 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1415 continue;
1416
1417 for(;;) {
1418 AVPacket pkt;
1419 int fifo_bytes;
1420 av_init_packet(&pkt);
1421 pkt.stream_index= ost->index;
1422
1423 switch (ost->st->codec->codec_type) {
1424 case AVMEDIA_TYPE_AUDIO:
1425 fifo_bytes = av_fifo_size(ost->fifo);
1426 ret = 0;
1427 /* encode any samples remaining in fifo */
1428 if (fifo_bytes > 0) {
1429 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1430 int fs_tmp = enc->frame_size;
1431
1432 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1433 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1434 enc->frame_size = fifo_bytes / (osize * enc->channels);
1435 } else { /* pad */
1436 int frame_bytes = enc->frame_size*osize*enc->channels;
1437 if (allocated_audio_buf_size < frame_bytes)
1438 exit_program(1);
1439 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1440 }
1441
1442 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1443 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1444 ost->st->time_base.num, enc->sample_rate);
1445 enc->frame_size = fs_tmp;
1446 }
1447 if (ret <= 0) {
1448 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1449 }
1450 if (ret < 0) {
1451 fprintf(stderr, "Audio encoding failed\n");
1452 exit_program(1);
1453 }
1454 audio_size += ret;
1455 pkt.flags |= AV_PKT_FLAG_KEY;
1456 break;
1457 case AVMEDIA_TYPE_VIDEO:
1458 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1459 if (ret < 0) {
1460 fprintf(stderr, "Video encoding failed\n");
1461 exit_program(1);
1462 }
1463 video_size += ret;
1464 if(enc->coded_frame && enc->coded_frame->key_frame)
1465 pkt.flags |= AV_PKT_FLAG_KEY;
1466 if (ost->logfile && enc->stats_out) {
1467 fprintf(ost->logfile, "%s", enc->stats_out);
1468 }
1469 break;
1470 default:
1471 ret=-1;
1472 }
1473
1474 if (ret <= 0)
1475 break;
1476 pkt.data = bit_buffer;
1477 pkt.size = ret;
1478 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1479 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1480 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1481 }
1482 }
1483 }
1484
1485 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1486 static int output_packet(InputStream *ist, int ist_index,
1487 OutputStream *ost_table, int nb_ostreams,
1488 const AVPacket *pkt)
1489 {
1490 AVFormatContext *os;
1491 OutputStream *ost;
1492 int ret, i;
1493 int got_output;
1494 AVFrame picture;
1495 void *buffer_to_free = NULL;
1496 static unsigned int samples_size= 0;
1497 AVSubtitle subtitle, *subtitle_to_free;
1498 int64_t pkt_pts = AV_NOPTS_VALUE;
1499 #if CONFIG_AVFILTER
1500 int frame_available;
1501 #endif
1502 float quality;
1503
1504 AVPacket avpkt;
1505 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1506
1507 if(ist->next_pts == AV_NOPTS_VALUE)
1508 ist->next_pts= ist->pts;
1509
1510 if (pkt == NULL) {
1511 /* EOF handling */
1512 av_init_packet(&avpkt);
1513 avpkt.data = NULL;
1514 avpkt.size = 0;
1515 goto handle_eof;
1516 } else {
1517 avpkt = *pkt;
1518 }
1519
1520 if(pkt->dts != AV_NOPTS_VALUE)
1521 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1522 if(pkt->pts != AV_NOPTS_VALUE)
1523 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1524
1525 //while we have more to decode or while the decoder did output something on EOF
1526 while (avpkt.size > 0 || (!pkt && got_output)) {
1527 uint8_t *data_buf, *decoded_data_buf;
1528 int data_size, decoded_data_size;
1529 handle_eof:
1530 ist->pts= ist->next_pts;
1531
1532 if(avpkt.size && avpkt.size != pkt->size &&
1533 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1534 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1535 ist->showed_multi_packet_warning=1;
1536 }
1537
1538 /* decode the packet if needed */
1539 decoded_data_buf = NULL; /* fail safe */
1540 decoded_data_size= 0;
1541 data_buf = avpkt.data;
1542 data_size = avpkt.size;
1543 subtitle_to_free = NULL;
1544 if (ist->decoding_needed) {
1545 switch(ist->st->codec->codec_type) {
1546 case AVMEDIA_TYPE_AUDIO:{
1547 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1548 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1549 av_free(samples);
1550 samples= av_malloc(samples_size);
1551 }
1552 decoded_data_size= samples_size;
1553 /* XXX: could avoid copy if PCM 16 bits with same
1554 endianness as CPU */
1555 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1556 &avpkt);
1557 if (ret < 0)
1558 return ret;
1559 avpkt.data += ret;
1560 avpkt.size -= ret;
1561 data_size = ret;
1562 got_output = decoded_data_size > 0;
1563 /* Some bug in mpeg audio decoder gives */
1564 /* decoded_data_size < 0, it seems they are overflows */
1565 if (!got_output) {
1566 /* no audio frame */
1567 continue;
1568 }
1569 decoded_data_buf = (uint8_t *)samples;
1570 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1571 (ist->st->codec->sample_rate * ist->st->codec->channels);
1572 break;}
1573 case AVMEDIA_TYPE_VIDEO:
1574 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1575 /* XXX: allocate picture correctly */
1576 avcodec_get_frame_defaults(&picture);
1577 avpkt.pts = pkt_pts;
1578 avpkt.dts = ist->pts;
1579 pkt_pts = AV_NOPTS_VALUE;
1580
1581 ret = avcodec_decode_video2(ist->st->codec,
1582 &picture, &got_output, &avpkt);
1583 quality = same_quant ? picture.quality : 0;
1584 if (ret < 0)
1585 return ret;
1586 if (!got_output) {
1587 /* no picture yet */
1588 goto discard_packet;
1589 }
1590 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1591 if (ist->st->codec->time_base.num != 0) {
1592 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1593 ist->next_pts += ((int64_t)AV_TIME_BASE *
1594 ist->st->codec->time_base.num * ticks) /
1595 ist->st->codec->time_base.den;
1596 }
1597 avpkt.size = 0;
1598 buffer_to_free = NULL;
1599 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1600 break;
1601 case AVMEDIA_TYPE_SUBTITLE:
1602 ret = avcodec_decode_subtitle2(ist->st->codec,
1603 &subtitle, &got_output, &avpkt);
1604 if (ret < 0)
1605 return ret;
1606 if (!got_output) {
1607 goto discard_packet;
1608 }
1609 subtitle_to_free = &subtitle;
1610 avpkt.size = 0;
1611 break;
1612 default:
1613 return -1;
1614 }
1615 } else {
1616 switch(ist->st->codec->codec_type) {
1617 case AVMEDIA_TYPE_AUDIO:
1618 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1619 ist->st->codec->sample_rate;
1620 break;
1621 case AVMEDIA_TYPE_VIDEO:
1622 if (ist->st->codec->time_base.num != 0) {
1623 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1624 ist->next_pts += ((int64_t)AV_TIME_BASE *
1625 ist->st->codec->time_base.num * ticks) /
1626 ist->st->codec->time_base.den;
1627 }
1628 break;
1629 }
1630 ret = avpkt.size;
1631 avpkt.size = 0;
1632 }
1633
1634 // preprocess audio (volume)
1635 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1636 if (audio_volume != 256) {
1637 short *volp;
1638 volp = samples;
1639 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1640 int v = ((*volp) * audio_volume + 128) >> 8;
1641 if (v < -32768) v = -32768;
1642 if (v > 32767) v = 32767;
1643 *volp++ = v;
1644 }
1645 }
1646 }
1647
1648 /* frame rate emulation */
1649 if (rate_emu) {
1650 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1651 int64_t now = av_gettime() - ist->start;
1652 if (pts > now)
1653 usleep(pts - now);
1654 }
1655 /* if output time reached then transcode raw format,
1656 encode packets and output them */
1657 for (i = 0; i < nb_ostreams; i++) {
1658 OutputFile *of = &output_files[ost_table[i].file_index];
1659 int frame_size;
1660
1661 ost = &ost_table[i];
1662 if (ost->source_index != ist_index)
1663 continue;
1664
1665 if (of->start_time && ist->pts < of->start_time)
1666 continue;
1667
1668 if (of->recording_time != INT64_MAX &&
1669 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1670 (AVRational){1, 1000000}) >= 0) {
1671 ost->is_past_recording_time = 1;
1672 continue;
1673 }
1674
1675 #if CONFIG_AVFILTER
1676 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1677 ost->input_video_filter) {
1678 AVRational sar;
1679 if (ist->st->sample_aspect_ratio.num)
1680 sar = ist->st->sample_aspect_ratio;
1681 else
1682 sar = ist->st->codec->sample_aspect_ratio;
1683 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1684 }
1685 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1686 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1687 while (frame_available) {
1688 AVRational ist_pts_tb;
1689 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1690 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1691 if (ost->picref)
1692 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1693 #endif
1694 os = output_files[ost->file_index].ctx;
1695
1696 /* set the input output pts pairs */
1697 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1698
1699 if (ost->encoding_needed) {
1700 av_assert0(ist->decoding_needed);
1701 switch(ost->st->codec->codec_type) {
1702 case AVMEDIA_TYPE_AUDIO:
1703 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1704 break;
1705 case AVMEDIA_TYPE_VIDEO:
1706 #if CONFIG_AVFILTER
1707 if (ost->picref->video && !ost->frame_aspect_ratio)
1708 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1709 #endif
1710 do_video_out(os, ost, ist, &picture, &frame_size,
1711 same_quant ? quality : ost->st->codec->global_quality);
1712 if (vstats_filename && frame_size)
1713 do_video_stats(os, ost, frame_size);
1714 break;
1715 case AVMEDIA_TYPE_SUBTITLE:
1716 do_subtitle_out(os, ost, ist, &subtitle,
1717 pkt->pts);
1718 break;
1719 default:
1720 abort();
1721 }
1722 } else {
1723 AVFrame avframe; //FIXME/XXX remove this
1724 AVPacket opkt;
1725 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1726
1727 av_init_packet(&opkt);
1728
1729 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1730 #if !CONFIG_AVFILTER
1731 continue;
1732 #else
1733 goto cont;
1734 #endif
1735
1736 /* no reencoding needed : output the packet directly */
1737 /* force the input stream PTS */
1738
1739 avcodec_get_frame_defaults(&avframe);
1740 ost->st->codec->coded_frame= &avframe;
1741 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1742
1743 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1744 audio_size += data_size;
1745 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1746 video_size += data_size;
1747 ost->sync_opts++;
1748 }
1749
1750 opkt.stream_index= ost->index;
1751 if(pkt->pts != AV_NOPTS_VALUE)
1752 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1753 else
1754 opkt.pts= AV_NOPTS_VALUE;
1755
1756 if (pkt->dts == AV_NOPTS_VALUE)
1757 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1758 else
1759 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1760 opkt.dts -= ost_tb_start_time;
1761
1762 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1763 opkt.flags= pkt->flags;
1764
1765 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1766 if( ost->st->codec->codec_id != CODEC_ID_H264
1767 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1768 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1769 ) {
1770 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1771 opkt.destruct= av_destruct_packet;
1772 } else {
1773 opkt.data = data_buf;
1774 opkt.size = data_size;
1775 }
1776
1777 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1778 ost->st->codec->frame_number++;
1779 ost->frame_number++;
1780 av_free_packet(&opkt);
1781 }
1782 #if CONFIG_AVFILTER
1783 cont:
1784 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1785 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1786 if (ost->picref)
1787 avfilter_unref_buffer(ost->picref);
1788 }
1789 #endif
1790 }
1791
1792 av_free(buffer_to_free);
1793 /* XXX: allocate the subtitles in the codec ? */
1794 if (subtitle_to_free) {
1795 avsubtitle_free(subtitle_to_free);
1796 subtitle_to_free = NULL;
1797 }
1798 }
1799 discard_packet:
1800 if (pkt == NULL) {
1801 /* EOF handling */
1802 flush_encoders(ist_index, ost_table, nb_ostreams);
1803 }
1804
1805 return 0;
1806 }
1807
1808 static void print_sdp(OutputFile *output_files, int n)
1809 {
1810 char sdp[2048];
1811 int i;
1812 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1813
1814 if (!avc)
1815 exit_program(1);
1816 for (i = 0; i < n; i++)
1817 avc[i] = output_files[i].ctx;
1818
1819 av_sdp_create(avc, n, sdp, sizeof(sdp));
1820 printf("SDP:\n%s\n", sdp);
1821 fflush(stdout);
1822 av_freep(&avc);
1823 }
1824
1825 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1826 char *error, int error_len)
1827 {
1828 int i;
1829 InputStream *ist = &input_streams[ist_index];
1830 if (ist->decoding_needed) {
1831 AVCodec *codec = ist->dec;
1832 if (!codec)
1833 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1834 if (!codec) {
1835 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
1836 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1837 return AVERROR(EINVAL);
1838 }
1839
1840 /* update requested sample format for the decoder based on the
1841 corresponding encoder sample format */
1842 for (i = 0; i < nb_output_streams; i++) {
1843 OutputStream *ost = &output_streams[i];
1844 if (ost->source_index == ist_index) {
1845 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1846 break;
1847 }
1848 }
1849
1850 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1851 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
1852 ist->file_index, ist->st->index);
1853 return AVERROR(EINVAL);
1854 }
1855 assert_codec_experimental(ist->st->codec, 0);
1856 assert_avoptions(ist->opts);
1857 }
1858
1859 ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1860 ist->next_pts = AV_NOPTS_VALUE;
1861 init_pts_correction(&ist->pts_ctx);
1862 ist->is_start = 1;
1863
1864 return 0;
1865 }
1866
1867 /*
1868 * The following code is the main loop of the file converter
1869 */
1870 static int transcode(OutputFile *output_files,
1871 int nb_output_files,
1872 InputFile *input_files,
1873 int nb_input_files)
1874 {
1875 int ret = 0, i;
1876 AVFormatContext *is, *os;
1877 AVCodecContext *codec, *icodec;
1878 OutputStream *ost;
1879 InputStream *ist;
1880 char error[1024];
1881 int want_sdp = 1;
1882 uint8_t *no_packet;
1883 int no_packet_count=0;
1884 int64_t timer_start;
1885
1886 if (!(no_packet = av_mallocz(nb_input_files)))
1887 exit_program(1);
1888
1889 if (rate_emu)
1890 for (i = 0; i < nb_input_streams; i++)
1891 input_streams[i].start = av_gettime();
1892
1893 /* output stream init */
1894 for(i=0;i<nb_output_files;i++) {
1895 os = output_files[i].ctx;
1896 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1897 av_dump_format(os, i, os->filename, 1);
1898 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1899 ret = AVERROR(EINVAL);
1900 goto fail;
1901 }
1902 }
1903
1904 /* for each output stream, we compute the right encoding parameters */
1905 for (i = 0; i < nb_output_streams; i++) {
1906 ost = &output_streams[i];
1907 os = output_files[ost->file_index].ctx;
1908 ist = &input_streams[ost->source_index];
1909
1910 codec = ost->st->codec;
1911 icodec = ist->st->codec;
1912
1913 ost->st->disposition = ist->st->disposition;
1914 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1915 codec->chroma_sample_location = icodec->chroma_sample_location;
1916
1917 if (ost->st->stream_copy) {
1918 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1919
1920 if (extra_size > INT_MAX) {
1921 ret = AVERROR(EINVAL);
1922 goto fail;
1923 }
1924
1925 /* if stream_copy is selected, no need to decode or encode */
1926 codec->codec_id = icodec->codec_id;
1927 codec->codec_type = icodec->codec_type;
1928
1929 if(!codec->codec_tag){
1930 if( !os->oformat->codec_tag
1931 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1932 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1933 codec->codec_tag = icodec->codec_tag;
1934 }
1935
1936 codec->bit_rate = icodec->bit_rate;
1937 codec->rc_max_rate = icodec->rc_max_rate;
1938 codec->rc_buffer_size = icodec->rc_buffer_size;
1939 codec->extradata= av_mallocz(extra_size);
1940 if (!codec->extradata) {
1941 ret = AVERROR(ENOMEM);
1942 goto fail;
1943 }
1944 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1945 codec->extradata_size= icodec->extradata_size;
1946 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){
1947 codec->time_base = icodec->time_base;
1948 codec->time_base.num *= icodec->ticks_per_frame;
1949 av_reduce(&codec->time_base.num, &codec->time_base.den,
1950 codec->time_base.num, codec->time_base.den, INT_MAX);
1951 }else
1952 codec->time_base = ist->st->time_base;
1953 switch(codec->codec_type) {
1954 case AVMEDIA_TYPE_AUDIO:
1955 if(audio_volume != 256) {
1956 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1957 exit_program(1);
1958 }
1959 codec->channel_layout = icodec->channel_layout;
1960 codec->sample_rate = icodec->sample_rate;
1961 codec->channels = icodec->channels;
1962 codec->frame_size = icodec->frame_size;
1963 codec->audio_service_type = icodec->audio_service_type;
1964 codec->block_align= icodec->block_align;
1965 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1966 codec->block_align= 0;
1967 if(codec->codec_id == CODEC_ID_AC3)
1968 codec->block_align= 0;
1969 break;
1970 case AVMEDIA_TYPE_VIDEO:
1971 codec->pix_fmt = icodec->pix_fmt;
1972 codec->width = icodec->width;
1973 codec->height = icodec->height;
1974 codec->has_b_frames = icodec->has_b_frames;
1975 if (!codec->sample_aspect_ratio.num) {
1976 codec->sample_aspect_ratio =
1977 ost->st->sample_aspect_ratio =
1978 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1979 ist->st->codec->sample_aspect_ratio.num ?
1980 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1981 }
1982 break;
1983 case AVMEDIA_TYPE_SUBTITLE:
1984 codec->width = icodec->width;
1985 codec->height = icodec->height;
1986 break;
1987 case AVMEDIA_TYPE_DATA:
1988 break;
1989 default:
1990 abort();
1991 }
1992 } else {
1993 if (!ost->enc)
1994 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1995 switch(codec->codec_type) {
1996 case AVMEDIA_TYPE_AUDIO:
1997 ost->fifo= av_fifo_alloc(1024);
1998 if (!ost->fifo) {
1999 ret = AVERROR(ENOMEM);
2000 goto fail;
2001 }
2002 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2003 if (!codec->sample_rate) {
2004 codec->sample_rate = icodec->sample_rate;
2005 if (icodec->lowres)
2006 codec->sample_rate >>= icodec->lowres;
2007 }
2008 choose_sample_rate(ost->st, ost->enc);
2009 codec->time_base = (AVRational){1, codec->sample_rate};
2010 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2011 codec->sample_fmt = icodec->sample_fmt;
2012 choose_sample_fmt(ost->st, ost->enc);
2013 if (!codec->channels)
2014 codec->channels = icodec->channels;
2015 codec->channel_layout = icodec->channel_layout;
2016 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2017 codec->channel_layout = 0;
2018 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2019 icodec->request_channels = codec->channels;
2020 ist->decoding_needed = 1;
2021 ost->encoding_needed = 1;
2022 ost->resample_sample_fmt = icodec->sample_fmt;
2023 ost->resample_sample_rate = icodec->sample_rate;
2024 ost->resample_channels = icodec->channels;
2025 break;
2026 case AVMEDIA_TYPE_VIDEO:
2027 if (codec->pix_fmt == PIX_FMT_NONE)
2028 codec->pix_fmt = icodec->pix_fmt;
2029 choose_pixel_fmt(ost->st, ost->enc);
2030
2031 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2032 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2033 exit_program(1);
2034 }
2035
2036 if (!codec->width || !codec->height) {
2037 codec->width = icodec->width;
2038 codec->height = icodec->height;
2039 }
2040
2041 ost->video_resample = codec->width != icodec->width ||
2042 codec->height != icodec->height ||
2043 codec->pix_fmt != icodec->pix_fmt;
2044 if (ost->video_resample) {
2045 #if !CONFIG_AVFILTER
2046 avcodec_get_frame_defaults(&ost->pict_tmp);
2047 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2048 codec->width, codec->height)) {
2049 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2050 exit_program(1);
2051 }
2052 ost->img_resample_ctx = sws_getContext(
2053 icodec->width,
2054 icodec->height,
2055 icodec->pix_fmt,
2056 codec->width,
2057 codec->height,
2058 codec->pix_fmt,
2059 ost->sws_flags, NULL, NULL, NULL);
2060 if (ost->img_resample_ctx == NULL) {
2061 fprintf(stderr, "Cannot get resampling context\n");
2062 exit_program(1);
2063 }
2064 #endif
2065 codec->bits_per_raw_sample= 0;
2066 }
2067
2068 ost->resample_height = icodec->height;
2069 ost->resample_width = icodec->width;
2070 ost->resample_pix_fmt= icodec->pix_fmt;
2071 ost->encoding_needed = 1;
2072 ist->decoding_needed = 1;
2073
2074 if (!ost->frame_rate.num)
2075 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2076 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2077 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2078 ost->frame_rate = ost->enc->supported_framerates[idx];
2079 }
2080 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2081
2082 #if CONFIG_AVFILTER
2083 if (configure_video_filters(ist, ost)) {
2084 fprintf(stderr, "Error opening filters!\n");
2085 exit(1);
2086 }
2087 #endif
2088 break;
2089 case AVMEDIA_TYPE_SUBTITLE:
2090 ost->encoding_needed = 1;
2091 ist->decoding_needed = 1;
2092 break;
2093 default:
2094 abort();
2095 break;
2096 }
2097 /* two pass mode */
2098 if (ost->encoding_needed &&
2099 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2100 char logfilename[1024];
2101 FILE *f;
2102
2103 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2104 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2105 i);
2106 if (codec->flags & CODEC_FLAG_PASS1) {
2107 f = fopen(logfilename, "wb");
2108 if (!f) {
2109 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2110 exit_program(1);
2111 }
2112 ost->logfile = f;
2113 } else {
2114 char *logbuffer;
2115 size_t logbuffer_size;
2116 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2117 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2118 exit_program(1);
2119 }
2120 codec->stats_in = logbuffer;
2121 }
2122 }
2123 }
2124 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2125 int size= codec->width * codec->height;
2126 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2127 }
2128 }
2129
2130 if (!bit_buffer)
2131 bit_buffer = av_malloc(bit_buffer_size);
2132 if (!bit_buffer) {
2133 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2134 bit_buffer_size);
2135 ret = AVERROR(ENOMEM);
2136 goto fail;
2137 }
2138
2139 /* open each encoder */
2140 for (i = 0; i < nb_output_streams; i++) {
2141 ost = &output_streams[i];
2142 if (ost->encoding_needed) {
2143 AVCodec *codec = ost->enc;
2144 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2145 if (!codec) {
2146 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2147 ost->st->codec->codec_id, ost->file_index, ost->index);
2148 ret = AVERROR(EINVAL);
2149 goto dump_format;
2150 }
2151 if (dec->subtitle_header) {
2152 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2153 if (!ost->st->codec->subtitle_header) {
2154 ret = AVERROR(ENOMEM);
2155 goto dump_format;
2156 }
2157 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2158 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2159 }
2160 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2161 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2162 ost->file_index, ost->index);
2163 ret = AVERROR(EINVAL);
2164 goto dump_format;
2165 }
2166 assert_codec_experimental(ost->st->codec, 1);
2167 assert_avoptions(ost->opts);
2168 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2169 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2170 "It takes bits/s as argument, not kbits/s\n");
2171 extra_size += ost->st->codec->extradata_size;
2172 }
2173 }
2174
2175 /* init input streams */
2176 for (i = 0; i < nb_input_streams; i++)
2177 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0))
2178 goto dump_format;
2179
2180 /* open files and write file headers */
2181 for (i = 0; i < nb_output_files; i++) {
2182 os = output_files[i].ctx;
2183 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2184 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2185 ret = AVERROR(EINVAL);
2186 goto dump_format;
2187 }
2188 assert_avoptions(output_files[i].opts);
2189 if (strcmp(os->oformat->name, "rtp")) {
2190 want_sdp = 0;
2191 }
2192 }
2193
2194 dump_format:
2195 /* dump the file output parameters - cannot be done before in case
2196 of stream copy */
2197 for(i=0;i<nb_output_files;i++) {
2198 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2199 }
2200
2201 /* dump the stream mapping */
2202 if (verbose >= 0) {
2203 fprintf(stderr, "Stream mapping:\n");
2204 for (i = 0; i < nb_output_streams;i ++) {
2205 ost = &output_streams[i];
2206 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2207 input_streams[ost->source_index].file_index,
2208 input_streams[ost->source_index].st->index,
2209 ost->file_index,
2210 ost->index);
2211 if (ost->sync_ist != &input_streams[ost->source_index])
2212 fprintf(stderr, " [sync #%d.%d]",
2213 ost->sync_ist->file_index,
2214 ost->sync_ist->st->index);
2215 if (ost->st->stream_copy)
2216 fprintf(stderr, " (copy)");
2217 fprintf(stderr, "\n");
2218 }
2219 }
2220
2221 if (ret) {
2222 fprintf(stderr, "%s\n", error);
2223 goto fail;
2224 }
2225
2226 if (want_sdp) {
2227 print_sdp(output_files, nb_output_files);
2228 }
2229
2230 if (verbose >= 0)
2231 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2232 term_init();
2233
2234 timer_start = av_gettime();
2235
2236 for(; received_sigterm == 0;) {
2237 int file_index, ist_index;
2238 AVPacket pkt;
2239 int64_t ipts_min;
2240 double opts_min;
2241
2242 redo:
2243 ipts_min = INT64_MAX;
2244 opts_min= 1e100;
2245
2246 /* select the stream that we must read now by looking at the
2247 smallest output pts */
2248 file_index = -1;
2249 for (i = 0; i < nb_output_streams; i++) {
2250 OutputFile *of;
2251 int64_t ipts;
2252 double opts;
2253 ost = &output_streams[i];
2254 of = &output_files[ost->file_index];
2255 os = output_files[ost->file_index].ctx;
2256 ist = &input_streams[ost->source_index];
2257 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2258 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
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, nb_input_files);
2282 usleep(10000);
2283 continue;
2284 }
2285 break;
2286 }
2287
2288 /* read a frame from it and output it in the fifo */
2289 is = input_files[file_index].ctx;
2290 ret= av_read_frame(is, &pkt);
2291 if(ret == AVERROR(EAGAIN)){
2292 no_packet[file_index]=1;
2293 no_packet_count++;
2294 continue;
2295 }
2296 if (ret < 0) {
2297 input_files[file_index].eof_reached = 1;
2298 if (opt_shortest)
2299 break;
2300 else
2301 continue;
2302 }
2303
2304 no_packet_count=0;
2305 memset(no_packet, 0, nb_input_files);
2306
2307 if (do_pkt_dump) {
2308 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2309 is->streams[pkt.stream_index]);
2310 }
2311 /* the following test is needed in case new streams appear
2312 dynamically in stream : we ignore them */
2313 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2314 goto discard_packet;
2315 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2316 ist = &input_streams[ist_index];
2317 if (ist->discard)
2318 goto discard_packet;
2319
2320 if (pkt.dts != AV_NOPTS_VALUE)
2321 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2322 if (pkt.pts != AV_NOPTS_VALUE)
2323 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2324
2325 if (ist->ts_scale) {
2326 if(pkt.pts != AV_NOPTS_VALUE)
2327 pkt.pts *= ist->ts_scale;
2328 if(pkt.dts != AV_NOPTS_VALUE)
2329 pkt.dts *= ist->ts_scale;
2330 }
2331
2332 // 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);
2333 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2334 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2335 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2336 int64_t delta= pkt_dts - ist->next_pts;
2337 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2338 input_files[ist->file_index].ts_offset -= delta;
2339 if (verbose > 2)
2340 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2341 delta, input_files[ist->file_index].ts_offset);
2342 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2343 if(pkt.pts != AV_NOPTS_VALUE)
2344 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2345 }
2346 }
2347
2348 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2349 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2350
2351 if (verbose >= 0)
2352 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2353 ist->file_index, ist->st->index);
2354 if (exit_on_error)
2355 exit_program(1);
2356 av_free_packet(&pkt);
2357 goto redo;
2358 }
2359
2360 discard_packet:
2361 av_free_packet(&pkt);
2362
2363 /* dump report by using the output first video and audio streams */
2364 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2365 }
2366
2367 /* at the end of stream, we must flush the decoder buffers */
2368 for (i = 0; i < nb_input_streams; i++) {
2369 ist = &input_streams[i];
2370 if (ist->decoding_needed) {
2371 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2372 }
2373 }
2374
2375 term_exit();
2376
2377 /* write the trailer if needed and close file */
2378 for(i=0;i<nb_output_files;i++) {
2379 os = output_files[i].ctx;
2380 av_write_trailer(os);
2381 }
2382
2383 /* dump report by using the first video and audio streams */
2384 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2385
2386 /* close each encoder */
2387 for (i = 0; i < nb_output_streams; i++) {
2388 ost = &output_streams[i];
2389 if (ost->encoding_needed) {
2390 av_freep(&ost->st->codec->stats_in);
2391 avcodec_close(ost->st->codec);
2392 }
2393 #if CONFIG_AVFILTER
2394 avfilter_graph_free(&ost->graph);
2395 #endif
2396 }
2397
2398 /* close each decoder */
2399 for (i = 0; i < nb_input_streams; i++) {
2400 ist = &input_streams[i];
2401 if (ist->decoding_needed) {
2402 avcodec_close(ist->st->codec);
2403 }
2404 }
2405
2406 /* finished ! */
2407 ret = 0;
2408
2409 fail:
2410 av_freep(&bit_buffer);
2411 av_freep(&no_packet);
2412
2413 if (output_streams) {
2414 for (i = 0; i < nb_output_streams; i++) {
2415 ost = &output_streams[i];
2416 if (ost) {
2417 if (ost->st->stream_copy)
2418 av_freep(&ost->st->codec->extradata);
2419 if (ost->logfile) {
2420 fclose(ost->logfile);
2421 ost->logfile = NULL;
2422 }
2423 av_fifo_free(ost->fifo); /* works even if fifo is not
2424 initialized but set to zero */
2425 av_freep(&ost->st->codec->subtitle_header);
2426 av_free(ost->pict_tmp.data[0]);
2427 av_free(ost->forced_kf_pts);
2428 if (ost->video_resample)
2429 sws_freeContext(ost->img_resample_ctx);
2430 if (ost->resample)
2431 audio_resample_close(ost->resample);
2432 if (ost->reformat_ctx)
2433 av_audio_convert_free(ost->reformat_ctx);
2434 av_dict_free(&ost->opts);
2435 }
2436 }
2437 }
2438 return ret;
2439 }
2440
2441 static int opt_format(const char *opt, const char *arg)
2442 {
2443 last_asked_format = arg;
2444 return 0;
2445 }
2446
2447 static int opt_video_rc_override_string(const char *opt, const char *arg)
2448 {
2449 video_rc_override_string = arg;
2450 return 0;
2451 }
2452
2453 static int opt_me_threshold(const char *opt, const char *arg)
2454 {
2455 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2456 return 0;
2457 }
2458
2459 static int opt_verbose(const char *opt, const char *arg)
2460 {
2461 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2462 return 0;
2463 }
2464
2465 static int opt_frame_rate(const char *opt, const char *arg)
2466 {
2467 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2468 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2469 exit_program(1);
2470 }
2471 return 0;
2472 }
2473
2474 static int opt_frame_crop(const char *opt, const char *arg)
2475 {
2476 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2477 return AVERROR(EINVAL);
2478 }
2479
2480 static int opt_frame_size(const char *opt, const char *arg)
2481 {
2482 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2483 fprintf(stderr, "Incorrect frame size\n");
2484 return AVERROR(EINVAL);
2485 }
2486 return 0;
2487 }
2488
2489 static int opt_pad(const char *opt, const char *arg) {
2490 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2491 return -1;
2492 }
2493
2494 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2495 {
2496 if (strcmp(arg, "list")) {
2497 frame_pix_fmt = av_get_pix_fmt(arg);
2498 if (frame_pix_fmt == PIX_FMT_NONE) {
2499 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2500 return AVERROR(EINVAL);
2501 }
2502 } else {
2503 show_pix_fmts();
2504 exit_program(0);
2505 }
2506 return 0;
2507 }
2508
2509 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2510 {
2511 int x = 0, y = 0;
2512 double ar = 0;
2513 const char *p;
2514 char *end;
2515
2516 p = strchr(arg, ':');
2517 if (p) {
2518 x = strtol(arg, &end, 10);
2519 if (end == p)
2520 y = strtol(end+1, &end, 10);
2521 if (x > 0 && y > 0)
2522 ar = (double)x / (double)y;
2523 } else
2524 ar = strtod(arg, NULL);
2525
2526 if (!ar) {
2527 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2528 return AVERROR(EINVAL);
2529 }
2530 frame_aspect_ratio = ar;
2531 return 0;
2532 }
2533
2534 static int opt_metadata(const char *opt, const char *arg)
2535 {
2536 char *mid= strchr(arg, '=');
2537
2538 if(!mid){
2539 fprintf(stderr, "Missing =\n");
2540 exit_program(1);
2541 }
2542 *mid++= 0;
2543
2544 av_dict_set(&metadata, arg, mid, 0);
2545
2546 return 0;
2547 }
2548
2549 static int opt_qscale(const char *opt, const char *arg)
2550 {
2551 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2552 if (video_qscale == 0) {
2553 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2554 return AVERROR(EINVAL);
2555 }
2556 return 0;
2557 }
2558
2559 static int opt_top_field_first(const char *opt, const char *arg)
2560 {
2561 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2562 return 0;
2563 }
2564
2565 static int opt_thread_count(const char *opt, const char *arg)
2566 {
2567 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2568 #if !HAVE_THREADS
2569 if (verbose >= 0)
2570 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2571 #endif
2572 return 0;
2573 }
2574
2575 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2576 {
2577 if (strcmp(arg, "list")) {
2578 audio_sample_fmt = av_get_sample_fmt(arg);
2579 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2580 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2581 return AVERROR(EINVAL);
2582 }
2583 } else {
2584 int i;
2585 char fmt_str[128];
2586 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2587 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2588 exit_program(0);
2589 }
2590 return 0;
2591 }
2592
2593 static int opt_audio_rate(const char *opt, const char *arg)
2594 {
2595 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2596 return 0;
2597 }
2598
2599 static int opt_audio_channels(const char *opt, const char *arg)
2600 {
2601 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2602 return 0;
2603 }
2604
2605 static int opt_codec(const char *opt, const char *arg)
2606 {
2607 return av_dict_set(&codec_names, opt, arg, 0);
2608 }
2609
2610 static int opt_audio_codec(const char *opt, const char *arg)
2611 {
2612 return opt_codec("codec:a", arg);
2613 }
2614
2615 static int opt_video_codec(const char *opt, const char *arg)
2616 {
2617 return opt_codec("codec:v", arg);
2618 }
2619
2620 static int opt_subtitle_codec(const char *opt, const char *arg)
2621 {
2622 return opt_codec("codec:s", arg);
2623 }
2624
2625 static int opt_data_codec(const char *opt, const char *arg)
2626 {
2627 return opt_codec("codec:d", arg);
2628 }
2629
2630 static int opt_codec_tag(const char *opt, const char *arg)
2631 {
2632 char *tail;
2633 uint32_t *codec_tag;
2634
2635 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2636 !strcmp(opt, "vtag") ? &video_codec_tag :
2637 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2638 if (!codec_tag)
2639 return -1;
2640
2641 *codec_tag = strtol(arg, &tail, 0);
2642 if (!tail || *tail)
2643 *codec_tag = AV_RL32(arg);
2644
2645 return 0;
2646 }
2647
2648 static int opt_map(const char *opt, const char *arg)
2649 {
2650 StreamMap *m = NULL;
2651 int i, negative = 0, file_idx;
2652 int sync_file_idx = -1, sync_stream_idx;
2653 char *p, *sync;
2654 char *map;
2655
2656 if (*arg == '-') {
2657 negative = 1;
2658 arg++;
2659 }
2660 map = av_strdup(arg);
2661
2662 /* parse sync stream first, just pick first matching stream */
2663 if (sync = strchr(map, ',')) {
2664 *sync = 0;
2665 sync_file_idx = strtol(sync + 1, &sync, 0);
2666 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2667 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2668 exit_program(1);
2669 }
2670 if (*sync)
2671 sync++;
2672 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2673 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2674 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2675 sync_stream_idx = i;
2676 break;
2677 }
2678 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2679 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2680 "match any streams.\n", arg);
2681 exit_program(1);
2682 }
2683 }
2684
2685
2686 file_idx = strtol(map, &p, 0);
2687 if (file_idx >= nb_input_files || file_idx < 0) {
2688 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2689 exit_program(1);
2690 }
2691 if (negative)
2692 /* disable some already defined maps */
2693 for (i = 0; i < nb_stream_maps; i++) {
2694 m = &stream_maps[i];
2695 if (check_stream_specifier(input_files[m->file_index].ctx,
2696 input_files[m->file_index].ctx->streams[m->stream_index],
2697 *p == ':' ? p + 1 : p) > 0)
2698 m->disabled = 1;
2699 }
2700 else
2701 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2702 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2703 *p == ':' ? p + 1 : p) <= 0)
2704 continue;
2705 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2706 m = &stream_maps[nb_stream_maps - 1];
2707
2708 m->file_index = file_idx;
2709 m->stream_index = i;
2710
2711 if (sync_file_idx >= 0) {
2712 m->sync_file_index = sync_file_idx;
2713 m->sync_stream_index = sync_stream_idx;
2714 } else {
2715 m->sync_file_index = file_idx;
2716 m->sync_stream_index = i;
2717 }
2718 }
2719
2720 if (!m) {
2721 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2722 exit_program(1);
2723 }
2724
2725 av_freep(&map);
2726 return 0;
2727 }
2728
2729 static void parse_meta_type(char *arg, char *type, int *index)
2730 {
2731 if (*arg == ':') {
2732 *type = *(++arg);
2733 switch (*arg) {
2734 case 'g':
2735 break;
2736 case 's':
2737 case 'c':
2738 case 'p':
2739 if (*(++arg) == ':')
2740 *index = strtol(++arg, NULL, 0);
2741 break;
2742 default:
2743 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2744 exit_program(1);
2745 }
2746 } else
2747 *type = 'g';
2748 }
2749
2750 static int opt_map_metadata(const char *opt, const char *arg)
2751 {
2752 MetadataMap *m, *m1;
2753 char *p;
2754
2755 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2756 &nb_meta_data_maps, nb_meta_data_maps + 1);
2757
2758 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2759 m->file = strtol(arg, &p, 0);
2760 parse_meta_type(p, &m->type, &m->index);
2761
2762 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2763 if (p = strchr(opt, ':'))
2764 parse_meta_type(p, &m1->type, &m1->index);
2765 else
2766 m1->type = 'g';
2767
2768 if (m->type == 'g' || m1->type == 'g')
2769 metadata_global_autocopy = 0;
2770 if (m->type == 's' || m1->type == 's')
2771 metadata_streams_autocopy = 0;
2772 if (m->type == 'c' || m1->type == 'c')
2773 metadata_chapters_autocopy = 0;
2774
2775 return 0;
2776 }
2777
2778 static int opt_input_ts_scale(const char *opt, const char *arg)
2779 {
2780 return av_dict_set(&ts_scale, opt, arg, 0);
2781 }
2782
2783 static int opt_recording_time(const char *opt, const char *arg)
2784 {
2785 recording_time = parse_time_or_die(opt, arg, 1);
2786 return 0;
2787 }
2788
2789 static int opt_start_time(const char *opt, const char *arg)
2790 {
2791 start_time = parse_time_or_die(opt, arg, 1);
2792 return 0;
2793 }
2794
2795 static int opt_input_ts_offset(const char *opt, const char *arg)
2796 {
2797 input_ts_offset = parse_time_or_die(opt, arg, 1);
2798 return 0;
2799 }
2800
2801 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2802 {
2803 const char *codec_string = encoder ? "encoder" : "decoder";
2804 AVCodec *codec;
2805
2806 if(!name)
2807 return CODEC_ID_NONE;
2808 codec = encoder ?
2809 avcodec_find_encoder_by_name(name) :
2810 avcodec_find_decoder_by_name(name);
2811 if(!codec) {
2812 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2813 exit_program(1);
2814 }
2815 if(codec->type != type) {
2816 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2817 exit_program(1);
2818 }
2819 return codec->id;
2820 }
2821
2822 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2823 {
2824 AVDictionaryEntry *e = NULL;
2825 char *codec_name = NULL;
2826 int ret;
2827
2828 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2829 char *p = strchr(e->key, ':');
2830
2831 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2832 codec_name = e->value;
2833 else if (ret < 0)
2834 exit_program(1);
2835 }
2836
2837 if (!codec_name) {
2838 if (s->oformat) {
2839 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2840 return avcodec_find_encoder(st->codec->codec_id);
2841 }
2842 } else if (!strcmp(codec_name, "copy"))
2843 st->stream_copy = 1;
2844 else {
2845 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2846 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2847 avcodec_find_decoder_by_name(codec_name);
2848 }
2849
2850 return NULL;
2851 }
2852
2853 /**
2854 * Add all the streams from the given input file to the global
2855 * list of input streams.
2856 */
2857 static void add_input_streams(AVFormatContext *ic)
2858 {
2859 int i, rfps, rfps_base, ret;
2860
2861 for (i = 0; i < ic->nb_streams; i++) {
2862 AVStream *st = ic->streams[i];
2863 AVCodecContext *dec = st->codec;
2864 AVDictionaryEntry *e = NULL;
2865 InputStream *ist;
2866 char *scale = NULL;
2867
2868 dec->thread_count = thread_count;
2869
2870 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2871 ist = &input_streams[nb_input_streams - 1];
2872 ist->st = st;
2873 ist->file_index = nb_input_files;
2874 ist->discard = 1;
2875 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2876
2877 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2878 char *p = strchr(e->key, ':');
2879
2880 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2881 scale = e->value;
2882 else if (ret < 0)
2883 exit_program(1);
2884 }
2885 if (scale)
2886 ist->ts_scale = strtod(scale, NULL);
2887
2888 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2889
2890 switch (dec->codec_type) {
2891 case AVMEDIA_TYPE_AUDIO:
2892 if(audio_disable)
2893 st->discard= AVDISCARD_ALL;
2894 break;
2895 case AVMEDIA_TYPE_VIDEO:
2896 rfps = ic->streams[i]->r_frame_rate.num;
2897 rfps_base = ic->streams[i]->r_frame_rate.den;
2898 if (dec->lowres) {
2899 dec->flags |= CODEC_FLAG_EMU_EDGE;
2900 dec->height >>= dec->lowres;
2901 dec->width >>= dec->lowres;
2902 }
2903 if(me_threshold)
2904 dec->debug |= FF_DEBUG_MV;
2905
2906 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2907
2908 if (verbose >= 0)
2909 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2910 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2911
2912 (float)rfps / rfps_base, rfps, rfps_base);
2913 }
2914
2915 if(video_disable)
2916 st->discard= AVDISCARD_ALL;
2917 else if(video_discard)
2918 st->discard= video_discard;
2919 break;
2920 case AVMEDIA_TYPE_DATA:
2921 break;
2922 case AVMEDIA_TYPE_SUBTITLE:
2923 if(subtitle_disable)
2924 st->discard = AVDISCARD_ALL;
2925 break;
2926 case AVMEDIA_TYPE_ATTACHMENT:
2927 case AVMEDIA_TYPE_UNKNOWN:
2928 break;
2929 default:
2930 abort();
2931 }
2932 }
2933 }
2934
2935 static int opt_input_file(const char *opt, const char *filename)
2936 {
2937 AVFormatContext *ic;
2938 AVInputFormat *file_iformat = NULL;
2939 int err, i, ret;
2940 int64_t timestamp;
2941 uint8_t buf[128];
2942 AVDictionary **opts;
2943 int orig_nb_streams; // number of streams before avformat_find_stream_info
2944
2945 if (last_asked_format) {
2946 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2947 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2948 exit_program(1);
2949 }
2950 last_asked_format = NULL;
2951 }
2952
2953 if (!strcmp(filename, "-"))
2954 filename = "pipe:";
2955
2956 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2957 !strcmp(filename, "/dev/stdin");
2958
2959 /* get default parameters from command line */
2960 ic = avformat_alloc_context();
2961 if (!ic) {
2962 print_error(filename, AVERROR(ENOMEM));
2963 exit_program(1);
2964 }
2965 if (audio_sample_rate) {
2966 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2967 av_dict_set(&format_opts, "sample_rate", buf, 0);
2968 }
2969 if (audio_channels) {
2970 snprintf(buf, sizeof(buf), "%d", audio_channels);
2971 av_dict_set(&format_opts, "channels", buf, 0);
2972 }
2973 if (frame_rate.num) {
2974 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2975 av_dict_set(&format_opts, "framerate", buf, 0);
2976 }
2977 if (frame_width && frame_height) {
2978 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2979 av_dict_set(&format_opts, "video_size", buf, 0);
2980 }
2981 if (frame_pix_fmt != PIX_FMT_NONE)
2982 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2983
2984 ic->flags |= AVFMT_FLAG_NONBLOCK;
2985
2986 /* open the input file with generic libav function */
2987 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2988 if (err < 0) {
2989 print_error(filename, err);
2990 exit_program(1);
2991 }
2992 assert_avoptions(format_opts);
2993
2994 if(opt_programid) {
2995 int i, j;
2996 int found=0;
2997 for(i=0; i<ic->nb_streams; i++){
2998 ic->streams[i]->discard= AVDISCARD_ALL;
2999 }
3000 for(i=0; i<ic->nb_programs; i++){
3001 AVProgram *p= ic->programs[i];
3002 if(p->id != opt_programid){
3003 p->discard = AVDISCARD_ALL;
3004 }else{
3005 found=1;
3006 for(j=0; j<p->nb_stream_indexes; j++){
3007 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3008 }
3009 }
3010 }
3011 if(!found){
3012 fprintf(stderr, "Specified program id not found\n");
3013 exit_program(1);
3014 }
3015 opt_programid=0;
3016 }
3017
3018 /* apply forced codec ids */
3019 for (i = 0; i < ic->nb_streams; i++)
3020 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3021
3022 /* Set AVCodecContext options for avformat_find_stream_info */
3023 opts = setup_find_stream_info_opts(ic, codec_opts);
3024 orig_nb_streams = ic->nb_streams;
3025
3026 /* If not enough info to get the stream parameters, we decode the
3027 first frames to get it. (used in mpeg case for example) */
3028 ret = avformat_find_stream_info(ic, opts);
3029 if (ret < 0 && verbose >= 0) {
3030 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3031 av_close_input_file(ic);
3032 exit_program(1);
3033 }
3034
3035 timestamp = start_time;
3036 /* add the stream start time */
3037 if (ic->start_time != AV_NOPTS_VALUE)
3038 timestamp += ic->start_time;
3039
3040 /* if seeking requested, we execute it */
3041 if (start_time != 0) {
3042 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3043 if (ret < 0) {
3044 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3045 filename, (double)timestamp / AV_TIME_BASE);
3046 }
3047 /* reset seek info */
3048 start_time = 0;
3049 }
3050
3051 /* update the current parameters so that they match the one of the input stream */
3052 add_input_streams(ic);
3053
3054 /* dump the file content */
3055 if (verbose >= 0)
3056 av_dump_format(ic, nb_input_files, filename, 0);
3057
3058 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3059 input_files[nb_input_files - 1].ctx = ic;
3060 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3061 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3062
3063 frame_rate = (AVRational){0, 0};
3064 frame_pix_fmt = PIX_FMT_NONE;
3065 frame_height = 0;
3066 frame_width = 0;
3067 audio_sample_rate = 0;
3068 audio_channels = 0;
3069 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3070 av_dict_free(&ts_scale);
3071
3072 for (i = 0; i < orig_nb_streams; i++)
3073 av_dict_free(&opts[i]);
3074 av_freep(&opts);
3075 av_dict_free(&codec_names);
3076 uninit_opts();
3077 init_opts();
3078 return 0;
3079 }
3080
3081 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3082 AVCodecContext *avctx)
3083 {
3084 char *p;
3085 int n = 1, i;
3086 int64_t t;
3087
3088 for (p = kf; *p; p++)
3089 if (*p == ',')
3090 n++;
3091 ost->forced_kf_count = n;
3092 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3093 if (!ost->forced_kf_pts) {
3094 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3095 exit_program(1);
3096 }
3097 for (i = 0; i < n; i++) {
3098 p = i ? strchr(p, ',') + 1 : kf;
3099 t = parse_time_or_die("force_key_frames", p, 1);
3100 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3101 }
3102 }
3103
3104 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3105 {
3106 OutputStream *ost;
3107 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3108 int idx = oc->nb_streams - 1;
3109
3110 if (!st) {
3111 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3112 exit_program(1);
3113 }
3114
3115 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3116 nb_output_streams + 1);
3117 ost = &output_streams[nb_output_streams - 1];
3118 ost->file_index = nb_output_files;
3119 ost->index = idx;
3120 ost->st = st;
3121 st->codec->codec_type = type;
3122 ost->enc = choose_codec(oc, st, type, codec_names);
3123 if (ost->enc) {
3124 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3125 }
3126
3127 avcodec_get_context_defaults3(st->codec, ost->enc);
3128 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3129
3130 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3131 return ost;
3132 }
3133
3134 static OutputStream *new_video_stream(AVFormatContext *oc)
3135 {
3136 AVStream *st;
3137 OutputStream *ost;
3138 AVCodecContext *video_enc;
3139
3140 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3141 st = ost->st;
3142 if (!st->stream_copy) {
3143 ost->frame_aspect_ratio = frame_aspect_ratio;
3144 frame_aspect_ratio = 0;
3145 #if CONFIG_AVFILTER
3146 ost->avfilter= vfilters;
3147 vfilters = NULL;
3148 #endif
3149 }
3150
3151 ost->bitstream_filters = video_bitstream_filters;
3152 video_bitstream_filters= NULL;
3153
3154 st->codec->thread_count= thread_count;
3155
3156 video_enc = st->codec;
3157
3158 if(video_codec_tag)
3159 video_enc->codec_tag= video_codec_tag;
3160
3161 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3162 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3163 }
3164
3165 if (st->stream_copy) {
3166 video_enc->sample_aspect_ratio =
3167 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3168 } else {