avconv: factor flushing encoders out of output_packet().
[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 = 0;
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 } OutputFile;
307
308 static InputStream *input_streams = NULL;
309 static int nb_input_streams = 0;
310 static InputFile *input_files = NULL;
311 static int nb_input_files = 0;
312
313 static OutputStream *output_streams = NULL;
314 static int nb_output_streams = 0;
315 static OutputFile *output_files = NULL;
316 static int nb_output_files = 0;
317
318 #if CONFIG_AVFILTER
319
320 static int configure_video_filters(InputStream *ist, OutputStream *ost)
321 {
322 AVFilterContext *last_filter, *filter;
323 /** filter graph containing all filters including input & output */
324 AVCodecContext *codec = ost->st->codec;
325 AVCodecContext *icodec = ist->st->codec;
326 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
327 AVRational sample_aspect_ratio;
328 char args[255];
329 int ret;
330
331 ost->graph = avfilter_graph_alloc();
332
333 if (ist->st->sample_aspect_ratio.num){
334 sample_aspect_ratio = ist->st->sample_aspect_ratio;
335 }else
336 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
337
338 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
339 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
340 sample_aspect_ratio.num, sample_aspect_ratio.den);
341
342 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
343 "src", args, NULL, ost->graph);
344 if (ret < 0)
345 return ret;
346 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
347 "out", NULL, &ffsink_ctx, ost->graph);
348 if (ret < 0)
349 return ret;
350 last_filter = ost->input_video_filter;
351
352 if (codec->width != icodec->width || codec->height != icodec->height) {
353 snprintf(args, 255, "%d:%d:flags=0x%X",
354 codec->width,
355 codec->height,
356 ost->sws_flags);
357 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
358 NULL, args, NULL, ost->graph)) < 0)
359 return ret;
360 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
361 return ret;
362 last_filter = filter;
363 }
364
365 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
366 ost->graph->scale_sws_opts = av_strdup(args);
367
368 if (ost->avfilter) {
369 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
370 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
371
372 outputs->name = av_strdup("in");
373 outputs->filter_ctx = last_filter;
374 outputs->pad_idx = 0;
375 outputs->next = NULL;
376
377 inputs->name = av_strdup("out");
378 inputs->filter_ctx = ost->output_video_filter;
379 inputs->pad_idx = 0;
380 inputs->next = NULL;
381
382 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
383 return ret;
384 av_freep(&ost->avfilter);
385 } else {
386 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
387 return ret;
388 }
389
390 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
391 return ret;
392
393 codec->width = ost->output_video_filter->inputs[0]->w;
394 codec->height = ost->output_video_filter->inputs[0]->h;
395 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
396 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
397 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
398 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
399
400 return 0;
401 }
402 #endif /* CONFIG_AVFILTER */
403
404 static void term_exit(void)
405 {
406 av_log(NULL, AV_LOG_QUIET, "");
407 }
408
409 static volatile int received_sigterm = 0;
410 static volatile int received_nb_signals = 0;
411
412 static void
413 sigterm_handler(int sig)
414 {
415 received_sigterm = sig;
416 received_nb_signals++;
417 term_exit();
418 }
419
420 static void term_init(void)
421 {
422 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
423 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
424 #ifdef SIGXCPU
425 signal(SIGXCPU, sigterm_handler);
426 #endif
427 }
428
429 static int decode_interrupt_cb(void)
430 {
431 return received_nb_signals > 1;
432 }
433
434 static int exit_program(int ret)
435 {
436 int i;
437
438 /* close files */
439 for(i=0;i<nb_output_files;i++) {
440 AVFormatContext *s = output_files[i].ctx;
441 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
442 avio_close(s->pb);
443 avformat_free_context(s);
444 av_dict_free(&output_files[i].opts);
445 }
446 for(i=0;i<nb_input_files;i++) {
447 av_close_input_file(input_files[i].ctx);
448 }
449 for (i = 0; i < nb_input_streams; i++)
450 av_dict_free(&input_streams[i].opts);
451
452 av_free(intra_matrix);
453 av_free(inter_matrix);
454
455 if (vstats_file)
456 fclose(vstats_file);
457 av_free(vstats_filename);
458
459 av_free(meta_data_maps);
460
461 av_freep(&input_streams);
462 av_freep(&input_files);
463 av_freep(&output_streams);
464 av_freep(&output_files);
465
466 uninit_opts();
467 av_free(audio_buf);
468 av_free(audio_out);
469 allocated_audio_buf_size= allocated_audio_out_size= 0;
470 av_free(samples);
471
472 #if CONFIG_AVFILTER
473 avfilter_uninit();
474 #endif
475
476 if (received_sigterm) {
477 fprintf(stderr,
478 "Received signal %d: terminating.\n",
479 (int) received_sigterm);
480 exit (255);
481 }
482
483 exit(ret); /* not all OS-es handle main() return value */
484 return ret;
485 }
486
487 static void assert_avoptions(AVDictionary *m)
488 {
489 AVDictionaryEntry *t;
490 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
491 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
492 exit_program(1);
493 }
494 }
495
496 static void assert_codec_experimental(AVCodecContext *c, int encoder)
497 {
498 const char *codec_string = encoder ? "encoder" : "decoder";
499 AVCodec *codec;
500 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
501 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
502 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
503 "results.\nAdd '-strict experimental' if you want to use it.\n",
504 codec_string, c->codec->name);
505 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
506 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
507 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
508 codec_string, codec->name);
509 exit_program(1);
510 }
511 }
512
513 /* similar to ff_dynarray_add() and av_fast_realloc() */
514 static void *grow_array(void *array, int elem_size, int *size, int new_size)
515 {
516 if (new_size >= INT_MAX / elem_size) {
517 fprintf(stderr, "Array too big.\n");
518 exit_program(1);
519 }
520 if (*size < new_size) {
521 uint8_t *tmp = av_realloc(array, new_size*elem_size);
522 if (!tmp) {
523 fprintf(stderr, "Could not alloc buffer.\n");
524 exit_program(1);
525 }
526 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
527 *size = new_size;
528 return tmp;
529 }
530 return array;
531 }
532
533 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
534 {
535 if(codec && codec->sample_fmts){
536 const enum AVSampleFormat *p= codec->sample_fmts;
537 for(; *p!=-1; p++){
538 if(*p == st->codec->sample_fmt)
539 break;
540 }
541 if (*p == -1) {
542 av_log(NULL, AV_LOG_WARNING,
543 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
544 av_get_sample_fmt_name(st->codec->sample_fmt),
545 codec->name,
546 av_get_sample_fmt_name(codec->sample_fmts[0]));
547 st->codec->sample_fmt = codec->sample_fmts[0];
548 }
549 }
550 }
551
552 /**
553 * Update the requested input sample format based on the output sample format.
554 * This is currently only used to request float output from decoders which
555 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
556 * Ideally this will be removed in the future when decoders do not do format
557 * conversion and only output in their native format.
558 */
559 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
560 AVCodecContext *enc)
561 {
562 /* if sample formats match or a decoder sample format has already been
563 requested, just return */
564 if (enc->sample_fmt == dec->sample_fmt ||
565 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
566 return;
567
568 /* if decoder supports more than one output format */
569 if (dec_codec && dec_codec->sample_fmts &&
570 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
571 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
572 const enum AVSampleFormat *p;
573 int min_dec = -1, min_inc = -1;
574
575 /* find a matching sample format in the encoder */
576 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
577 if (*p == enc->sample_fmt) {
578 dec->request_sample_fmt = *p;
579 return;
580 } else if (*p > enc->sample_fmt) {
581 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
582 } else
583 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
584 }
585
586 /* if none match, provide the one that matches quality closest */
587 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
588 enc->sample_fmt - min_dec;
589 }
590 }
591
592 static void choose_sample_rate(AVStream *st, AVCodec *codec)
593 {
594 if(codec && codec->supported_samplerates){
595 const int *p= codec->supported_samplerates;
596 int best=0;
597 int best_dist=INT_MAX;
598 for(; *p; p++){
599 int dist= abs(st->codec->sample_rate - *p);
600 if(dist < best_dist){
601 best_dist= dist;
602 best= *p;
603 }
604 }
605 if(best_dist){
606 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
607 }
608 st->codec->sample_rate= best;
609 }
610 }
611
612 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
613 {
614 if(codec && codec->pix_fmts){
615 const enum PixelFormat *p= codec->pix_fmts;
616 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
617 if(st->codec->codec_id==CODEC_ID_MJPEG){
618 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
619 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
620 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
621 }
622 }
623 for(; *p!=-1; p++){
624 if(*p == st->codec->pix_fmt)
625 break;
626 }
627 if (*p == -1) {
628 if(st->codec->pix_fmt != PIX_FMT_NONE)
629 av_log(NULL, AV_LOG_WARNING,
630 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
631 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
632 codec->name,
633 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
634 st->codec->pix_fmt = codec->pix_fmts[0];
635 }
636 }
637 }
638
639 static double
640 get_sync_ipts(const OutputStream *ost)
641 {
642 const InputStream *ist = ost->sync_ist;
643 OutputFile *of = &output_files[ost->file_index];
644 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
645 }
646
647 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
648 int ret;
649
650 while(bsfc){
651 AVPacket new_pkt= *pkt;
652 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
653 &new_pkt.data, &new_pkt.size,
654 pkt->data, pkt->size,
655 pkt->flags & AV_PKT_FLAG_KEY);
656 if(a>0){
657 av_free_packet(pkt);
658 new_pkt.destruct= av_destruct_packet;
659 } else if(a<0){
660 fprintf(stderr, "%s failed for stream %d, codec %s",
661 bsfc->filter->name, pkt->stream_index,
662 avctx->codec ? avctx->codec->name : "copy");
663 print_error("", a);
664 if (exit_on_error)
665 exit_program(1);
666 }
667 *pkt= new_pkt;
668
669 bsfc= bsfc->next;
670 }
671
672 ret= av_interleaved_write_frame(s, pkt);
673 if(ret < 0){
674 print_error("av_interleaved_write_frame()", ret);
675 exit_program(1);
676 }
677 }
678
679 static void do_audio_out(AVFormatContext *s,
680 OutputStream *ost,
681 InputStream *ist,
682 unsigned char *buf, int size)
683 {
684 uint8_t *buftmp;
685 int64_t audio_out_size, audio_buf_size;
686 int64_t allocated_for_size= size;
687
688 int size_out, frame_bytes, ret, resample_changed;
689 AVCodecContext *enc= ost->st->codec;
690 AVCodecContext *dec= ist->st->codec;
691 int osize = av_get_bytes_per_sample(enc->sample_fmt);
692 int isize = av_get_bytes_per_sample(dec->sample_fmt);
693 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
694
695 need_realloc:
696 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
697 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
698 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
699 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
700 audio_buf_size*= osize*enc->channels;
701
702 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
703 if(coded_bps > 8*osize)
704 audio_out_size= audio_out_size * coded_bps / (8*osize);
705 audio_out_size += FF_MIN_BUFFER_SIZE;
706
707 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
708 fprintf(stderr, "Buffer sizes too large\n");
709 exit_program(1);
710 }
711
712 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
713 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
714 if (!audio_buf || !audio_out){
715 fprintf(stderr, "Out of memory in do_audio_out\n");
716 exit_program(1);
717 }
718
719 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
720 ost->audio_resample = 1;
721
722 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
723 ost->resample_channels != dec->channels ||
724 ost->resample_sample_rate != dec->sample_rate;
725
726 if ((ost->audio_resample && !ost->resample) || resample_changed) {
727 if (resample_changed) {
728 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",
729 ist->file_index, ist->st->index,
730 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
731 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
732 ost->resample_sample_fmt = dec->sample_fmt;
733 ost->resample_channels = dec->channels;
734 ost->resample_sample_rate = dec->sample_rate;
735 if (ost->resample)
736 audio_resample_close(ost->resample);
737 }
738 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
739 if (audio_sync_method <= 1 &&
740 ost->resample_sample_fmt == enc->sample_fmt &&
741 ost->resample_channels == enc->channels &&
742 ost->resample_sample_rate == enc->sample_rate) {
743 ost->resample = NULL;
744 ost->audio_resample = 0;
745 } else if (ost->audio_resample) {
746 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
747 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
748 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
749 enc->sample_rate, dec->sample_rate,
750 enc->sample_fmt, dec->sample_fmt,
751 16, 10, 0, 0.8);
752 if (!ost->resample) {
753 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
754 dec->channels, dec->sample_rate,
755 enc->channels, enc->sample_rate);
756 exit_program(1);
757 }
758 }
759 }
760
761 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
762 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
763 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
764 if (ost->reformat_ctx)
765 av_audio_convert_free(ost->reformat_ctx);
766 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
767 dec->sample_fmt, 1, NULL, 0);
768 if (!ost->reformat_ctx) {
769 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
770 av_get_sample_fmt_name(dec->sample_fmt),
771 av_get_sample_fmt_name(enc->sample_fmt));
772 exit_program(1);
773 }
774 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
775 }
776
777 if(audio_sync_method){
778 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
779 - av_fifo_size(ost->fifo)/(enc->channels * 2);
780 double idelta= delta*dec->sample_rate / enc->sample_rate;
781 int byte_delta= ((int)idelta)*2*dec->channels;
782
783 //FIXME resample delay
784 if(fabs(delta) > 50){
785 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
786 if(byte_delta < 0){
787 byte_delta= FFMAX(byte_delta, -size);
788 size += byte_delta;
789 buf -= byte_delta;
790 if(verbose > 2)
791 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
792 if(!size)
793 return;
794 ist->is_start=0;
795 }else{
796 static uint8_t *input_tmp= NULL;
797 input_tmp= av_realloc(input_tmp, byte_delta + size);
798
799 if(byte_delta > allocated_for_size - size){
800 allocated_for_size= byte_delta + (int64_t)size;
801 goto need_realloc;
802 }
803 ist->is_start=0;
804
805 memset(input_tmp, 0, byte_delta);
806 memcpy(input_tmp + byte_delta, buf, size);
807 buf= input_tmp;
808 size += byte_delta;
809 if(verbose > 2)
810 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
811 }
812 }else if(audio_sync_method>1){
813 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
814 av_assert0(ost->audio_resample);
815 if(verbose > 2)
816 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
817 // 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));
818 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
819 }
820 }
821 }else
822 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
823 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
824
825 if (ost->audio_resample) {
826 buftmp = audio_buf;
827 size_out = audio_resample(ost->resample,
828 (short *)buftmp, (short *)buf,
829 size / (dec->channels * isize));
830 size_out = size_out * enc->channels * osize;
831 } else {
832 buftmp = buf;
833 size_out = size;
834 }
835
836 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
837 const void *ibuf[6]= {buftmp};
838 void *obuf[6]= {audio_buf};
839 int istride[6]= {isize};
840 int ostride[6]= {osize};
841 int len= size_out/istride[0];
842 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
843 printf("av_audio_convert() failed\n");
844 if (exit_on_error)
845 exit_program(1);
846 return;
847 }
848 buftmp = audio_buf;
849 size_out = len*osize;
850 }
851
852 /* now encode as many frames as possible */
853 if (enc->frame_size > 1) {
854 /* output resampled raw samples */
855 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
856 fprintf(stderr, "av_fifo_realloc2() failed\n");
857 exit_program(1);
858 }
859 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
860
861 frame_bytes = enc->frame_size * osize * enc->channels;
862
863 while (av_fifo_size(ost->fifo) >= frame_bytes) {
864 AVPacket pkt;
865 av_init_packet(&pkt);
866
867 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
868
869 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
870
871 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
872 (short *)audio_buf);
873 if (ret < 0) {
874 fprintf(stderr, "Audio encoding failed\n");
875 exit_program(1);
876 }
877 audio_size += ret;
878 pkt.stream_index= ost->index;
879 pkt.data= audio_out;
880 pkt.size= ret;
881 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
882 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
883 pkt.flags |= AV_PKT_FLAG_KEY;
884 write_frame(s, &pkt, enc, ost->bitstream_filters);
885
886 ost->sync_opts += enc->frame_size;
887 }
888 } else {
889 AVPacket pkt;
890 av_init_packet(&pkt);
891
892 ost->sync_opts += size_out / (osize * enc->channels);
893
894 /* output a pcm frame */
895 /* determine the size of the coded buffer */
896 size_out /= osize;
897 if (coded_bps)
898 size_out = size_out*coded_bps/8;
899
900 if(size_out > audio_out_size){
901 fprintf(stderr, "Internal error, buffer size too small\n");
902 exit_program(1);
903 }
904
905 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
906 ret = avcodec_encode_audio(enc, audio_out, size_out,
907 (short *)buftmp);
908 if (ret < 0) {
909 fprintf(stderr, "Audio encoding failed\n");
910 exit_program(1);
911 }
912 audio_size += ret;
913 pkt.stream_index= ost->index;
914 pkt.data= audio_out;
915 pkt.size= ret;
916 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
917 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
918 pkt.flags |= AV_PKT_FLAG_KEY;
919 write_frame(s, &pkt, enc, ost->bitstream_filters);
920 }
921 }
922
923 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
924 {
925 AVCodecContext *dec;
926 AVPicture *picture2;
927 AVPicture picture_tmp;
928 uint8_t *buf = 0;
929
930 dec = ist->st->codec;
931
932 /* deinterlace : must be done before any resize */
933 if (do_deinterlace) {
934 int size;
935
936 /* create temporary picture */
937 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
938 buf = av_malloc(size);
939 if (!buf)
940 return;
941
942 picture2 = &picture_tmp;
943 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
944
945 if(avpicture_deinterlace(picture2, picture,
946 dec->pix_fmt, dec->width, dec->height) < 0) {
947 /* if error, do not deinterlace */
948 fprintf(stderr, "Deinterlacing failed\n");
949 av_free(buf);
950 buf = NULL;
951 picture2 = picture;
952 }
953 } else {
954 picture2 = picture;
955 }
956
957 if (picture != picture2)
958 *picture = *picture2;
959 *bufp = buf;
960 }
961
962 static void do_subtitle_out(AVFormatContext *s,
963 OutputStream *ost,
964 InputStream *ist,
965 AVSubtitle *sub,
966 int64_t pts)
967 {
968 static uint8_t *subtitle_out = NULL;
969 int subtitle_out_max_size = 1024 * 1024;
970 int subtitle_out_size, nb, i;
971 AVCodecContext *enc;
972 AVPacket pkt;
973
974 if (pts == AV_NOPTS_VALUE) {
975 fprintf(stderr, "Subtitle packets must have a pts\n");
976 if (exit_on_error)
977 exit_program(1);
978 return;
979 }
980
981 enc = ost->st->codec;
982
983 if (!subtitle_out) {
984 subtitle_out = av_malloc(subtitle_out_max_size);
985 }
986
987 /* Note: DVB subtitle need one packet to draw them and one other
988 packet to clear them */
989 /* XXX: signal it in the codec context ? */
990 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
991 nb = 2;
992 else
993 nb = 1;
994
995 for(i = 0; i < nb; i++) {
996 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
997 // start_display_time is required to be 0
998 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
999 sub->end_display_time -= sub->start_display_time;
1000 sub->start_display_time = 0;
1001 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1002 subtitle_out_max_size, sub);
1003 if (subtitle_out_size < 0) {
1004 fprintf(stderr, "Subtitle encoding failed\n");
1005 exit_program(1);
1006 }
1007
1008 av_init_packet(&pkt);
1009 pkt.stream_index = ost->index;
1010 pkt.data = subtitle_out;
1011 pkt.size = subtitle_out_size;
1012 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1013 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1014 /* XXX: the pts correction is handled here. Maybe handling
1015 it in the codec would be better */
1016 if (i == 0)
1017 pkt.pts += 90 * sub->start_display_time;
1018 else
1019 pkt.pts += 90 * sub->end_display_time;
1020 }
1021 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1022 }
1023 }
1024
1025 static int bit_buffer_size= 1024*256;
1026 static uint8_t *bit_buffer= NULL;
1027
1028 static void do_video_resample(OutputStream *ost,
1029 InputStream *ist,
1030 AVFrame *in_picture,
1031 AVFrame **out_picture)
1032 {
1033 int resample_changed = 0;
1034 AVCodecContext *dec = ist->st->codec;
1035 *out_picture = in_picture;
1036
1037 resample_changed = ost->resample_width != dec->width ||
1038 ost->resample_height != dec->height ||
1039 ost->resample_pix_fmt != dec->pix_fmt;
1040
1041 if (resample_changed) {
1042 av_log(NULL, AV_LOG_INFO,
1043 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1044 ist->file_index, ist->st->index,
1045 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1046 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1047 if(!ost->video_resample)
1048 ost->video_resample = 1;
1049 }
1050
1051 #if !CONFIG_AVFILTER
1052 if (ost->video_resample) {
1053 *out_picture = &ost->pict_tmp;
1054 if (resample_changed) {
1055 /* initialize a new scaler context */
1056 sws_freeContext(ost->img_resample_ctx);
1057 ost->img_resample_ctx = sws_getContext(
1058 ist->st->codec->width,
1059 ist->st->codec->height,
1060 ist->st->codec->pix_fmt,
1061 ost->st->codec->width,
1062 ost->st->codec->height,
1063 ost->st->codec->pix_fmt,
1064 ost->sws_flags, NULL, NULL, NULL);
1065 if (ost->img_resample_ctx == NULL) {
1066 fprintf(stderr, "Cannot get resampling context\n");
1067 exit_program(1);
1068 }
1069 }
1070 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1071 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1072 }
1073 #else
1074 if (resample_changed) {
1075 avfilter_graph_free(&ost->graph);
1076 if (configure_video_filters(ist, ost)) {
1077 fprintf(stderr, "Error reinitialising filters!\n");
1078 exit_program(1);
1079 }
1080 }
1081 #endif
1082 if (resample_changed) {
1083 ost->resample_width = dec->width;
1084 ost->resample_height = dec->height;
1085 ost->resample_pix_fmt = dec->pix_fmt;
1086 }
1087 }
1088
1089
1090 static void do_video_out(AVFormatContext *s,
1091 OutputStream *ost,
1092 InputStream *ist,
1093 AVFrame *in_picture,
1094 int *frame_size, float quality)
1095 {
1096 int nb_frames, i, ret, format_video_sync;
1097 AVFrame *final_picture;
1098 AVCodecContext *enc, *dec;
1099 double sync_ipts;
1100
1101 enc = ost->st->codec;
1102 dec = ist->st->codec;
1103
1104 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1105
1106 /* by default, we output a single frame */
1107 nb_frames = 1;
1108
1109 *frame_size = 0;
1110
1111 format_video_sync = video_sync_method;
1112 if (format_video_sync < 0)
1113 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1114
1115 if (format_video_sync) {
1116 double vdelta = sync_ipts - ost->sync_opts;
1117 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1118 if (vdelta < -1.1)
1119 nb_frames = 0;
1120 else if (format_video_sync == 2) {
1121 if(vdelta<=-0.6){
1122 nb_frames=0;
1123 }else if(vdelta>0.6)
1124 ost->sync_opts= lrintf(sync_ipts);
1125 }else if (vdelta > 1.1)
1126 nb_frames = lrintf(vdelta);
1127 //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);
1128 if (nb_frames == 0){
1129 ++nb_frames_drop;
1130 if (verbose>2)
1131 fprintf(stderr, "*** drop!\n");
1132 }else if (nb_frames > 1) {
1133 nb_frames_dup += nb_frames - 1;
1134 if (verbose>2)
1135 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1136 }
1137 }else
1138 ost->sync_opts= lrintf(sync_ipts);
1139
1140 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1141 if (nb_frames <= 0)
1142 return;
1143
1144 do_video_resample(ost, ist, in_picture, &final_picture);
1145
1146 /* duplicates frame if needed */
1147 for(i=0;i<nb_frames;i++) {
1148 AVPacket pkt;
1149 av_init_packet(&pkt);
1150 pkt.stream_index= ost->index;
1151
1152 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1153 /* raw pictures are written as AVPicture structure to
1154 avoid any copies. We support temorarily the older
1155 method. */
1156 AVFrame* old_frame = enc->coded_frame;
1157 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1158 pkt.data= (uint8_t *)final_picture;
1159 pkt.size= sizeof(AVPicture);
1160 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1161 pkt.flags |= AV_PKT_FLAG_KEY;
1162
1163 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1164 enc->coded_frame = old_frame;
1165 } else {
1166 AVFrame big_picture;
1167
1168 big_picture= *final_picture;
1169 /* better than nothing: use input picture interlaced
1170 settings */
1171 big_picture.interlaced_frame = in_picture->interlaced_frame;
1172 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1173 if(top_field_first == -1)
1174 big_picture.top_field_first = in_picture->top_field_first;
1175 else
1176 big_picture.top_field_first = top_field_first;
1177 }
1178
1179 /* handles same_quant here. This is not correct because it may
1180 not be a global option */
1181 big_picture.quality = quality;
1182 if(!me_threshold)
1183 big_picture.pict_type = 0;
1184 // big_picture.pts = AV_NOPTS_VALUE;
1185 big_picture.pts= ost->sync_opts;
1186 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1187 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1188 if (ost->forced_kf_index < ost->forced_kf_count &&
1189 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1190 big_picture.pict_type = AV_PICTURE_TYPE_I;
1191 ost->forced_kf_index++;
1192 }
1193 ret = avcodec_encode_video(enc,
1194 bit_buffer, bit_buffer_size,
1195 &big_picture);
1196 if (ret < 0) {
1197 fprintf(stderr, "Video encoding failed\n");
1198 exit_program(1);
1199 }
1200
1201 if(ret>0){
1202 pkt.data= bit_buffer;
1203 pkt.size= ret;
1204 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1205 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1206 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1207 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1208 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1209
1210 if(enc->coded_frame->key_frame)
1211 pkt.flags |= AV_PKT_FLAG_KEY;
1212 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1213 *frame_size = ret;
1214 video_size += ret;
1215 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1216 // enc->frame_number-1, ret, enc->pict_type);
1217 /* if two pass, output log */
1218 if (ost->logfile && enc->stats_out) {
1219 fprintf(ost->logfile, "%s", enc->stats_out);
1220 }
1221 }
1222 }
1223 ost->sync_opts++;
1224 ost->frame_number++;
1225 }
1226 }
1227
1228 static double psnr(double d){
1229 return -10.0*log(d)/log(10.0);
1230 }
1231
1232 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1233 int frame_size)
1234 {
1235 AVCodecContext *enc;
1236 int frame_number;
1237 double ti1, bitrate, avg_bitrate;
1238
1239 /* this is executed just the first time do_video_stats is called */
1240 if (!vstats_file) {
1241 vstats_file = fopen(vstats_filename, "w");
1242 if (!vstats_file) {
1243 perror("fopen");
1244 exit_program(1);
1245 }
1246 }
1247
1248 enc = ost->st->codec;
1249 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1250 frame_number = ost->frame_number;
1251 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1252 if (enc->flags&CODEC_FLAG_PSNR)
1253 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1254
1255 fprintf(vstats_file,"f_size= %6d ", frame_size);
1256 /* compute pts value */
1257 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1258 if (ti1 < 0.01)
1259 ti1 = 0.01;
1260
1261 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1262 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1263 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1264 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1265 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1266 }
1267 }
1268
1269 static void print_report(OutputFile *output_files,
1270 OutputStream *ost_table, int nb_ostreams,
1271 int is_last_report, int64_t timer_start)
1272 {
1273 char buf[1024];
1274 OutputStream *ost;
1275 AVFormatContext *oc;
1276 int64_t total_size;
1277 AVCodecContext *enc;
1278 int frame_number, vid, i;
1279 double bitrate, ti1, pts;
1280 static int64_t last_time = -1;
1281 static int qp_histogram[52];
1282
1283 if (!is_last_report) {
1284 int64_t cur_time;
1285 /* display the report every 0.5 seconds */
1286 cur_time = av_gettime();
1287 if (last_time == -1) {
1288 last_time = cur_time;
1289 return;
1290 }
1291 if ((cur_time - last_time) < 500000)
1292 return;
1293 last_time = cur_time;
1294 }
1295
1296
1297 oc = output_files[0].ctx;
1298
1299 total_size = avio_size(oc->pb);
1300 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1301 total_size= avio_tell(oc->pb);
1302
1303 buf[0] = '\0';
1304 ti1 = 1e10;
1305 vid = 0;
1306 for(i=0;i<nb_ostreams;i++) {
1307 float q = -1;
1308 ost = &ost_table[i];
1309 enc = ost->st->codec;
1310 if (!ost->st->stream_copy && enc->coded_frame)
1311 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1312 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1313 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1314 }
1315 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316 float t = (av_gettime()-timer_start) / 1000000.0;
1317
1318 frame_number = ost->frame_number;
1319 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1320 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1321 if(is_last_report)
1322 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1323 if(qp_hist){
1324 int j;
1325 int qp = lrintf(q);
1326 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1327 qp_histogram[qp]++;
1328 for(j=0; j<32; j++)
1329 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1330 }
1331 if (enc->flags&CODEC_FLAG_PSNR){
1332 int j;
1333 double error, error_sum=0;
1334 double scale, scale_sum=0;
1335 char type[3]= {'Y','U','V'};
1336 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1337 for(j=0; j<3; j++){
1338 if(is_last_report){
1339 error= enc->error[j];
1340 scale= enc->width*enc->height*255.0*255.0*frame_number;
1341 }else{
1342 error= enc->coded_frame->error[j];
1343 scale= enc->width*enc->height*255.0*255.0;
1344 }
1345 if(j) scale/=4;
1346 error_sum += error;
1347 scale_sum += scale;
1348 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1349 }
1350 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1351 }
1352 vid = 1;
1353 }
1354 /* compute min output value */
1355 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1356 if ((pts < ti1) && (pts > 0))
1357 ti1 = pts;
1358 }
1359 if (ti1 < 0.01)
1360 ti1 = 0.01;
1361
1362 if (verbose > 0 || is_last_report) {
1363 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1364
1365 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1366 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1367 (double)total_size / 1024, ti1, bitrate);
1368
1369 if (nb_frames_dup || nb_frames_drop)
1370 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1371 nb_frames_dup, nb_frames_drop);
1372
1373 if (verbose >= 0)
1374 fprintf(stderr, "%s \r", buf);
1375
1376 fflush(stderr);
1377 }
1378
1379 if (is_last_report && verbose >= 0){
1380 int64_t raw= audio_size + video_size + extra_size;
1381 fprintf(stderr, "\n");
1382 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1383 video_size/1024.0,
1384 audio_size/1024.0,
1385 extra_size/1024.0,
1386 100.0*(total_size - raw)/raw
1387 );
1388 }
1389 }
1390
1391 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1392 {
1393 int fill_char = 0x00;
1394 if (sample_fmt == AV_SAMPLE_FMT_U8)
1395 fill_char = 0x80;
1396 memset(buf, fill_char, size);
1397 }
1398
1399 static void flush_encoders(int ist_index, OutputStream *ost_table, int nb_ostreams)
1400 {
1401 int i, ret;
1402
1403 for (i = 0; i < nb_ostreams; i++) {
1404 OutputStream *ost = &ost_table[i];
1405
1406 if (ost->source_index == ist_index) {
1407 AVCodecContext *enc = ost->st->codec;
1408 AVFormatContext *os = output_files[ost->file_index].ctx;
1409
1410 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1411 continue;
1412 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1413 continue;
1414
1415 if (ost->encoding_needed) {
1416 for(;;) {
1417 AVPacket pkt;
1418 int fifo_bytes;
1419 av_init_packet(&pkt);
1420 pkt.stream_index= ost->index;
1421
1422 switch (ost->st->codec->codec_type) {
1423 case AVMEDIA_TYPE_AUDIO:
1424 fifo_bytes = av_fifo_size(ost->fifo);
1425 ret = 0;
1426 /* encode any samples remaining in fifo */
1427 if (fifo_bytes > 0) {
1428 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1429 int fs_tmp = enc->frame_size;
1430
1431 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1432 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1433 enc->frame_size = fifo_bytes / (osize * enc->channels);
1434 } else { /* pad */
1435 int frame_bytes = enc->frame_size*osize*enc->channels;
1436 if (allocated_audio_buf_size < frame_bytes)
1437 exit_program(1);
1438 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1439 }
1440
1441 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1442 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1443 ost->st->time_base.num, enc->sample_rate);
1444 enc->frame_size = fs_tmp;
1445 }
1446 if (ret <= 0) {
1447 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1448 }
1449 if (ret < 0) {
1450 fprintf(stderr, "Audio encoding failed\n");
1451 exit_program(1);
1452 }
1453 audio_size += ret;
1454 pkt.flags |= AV_PKT_FLAG_KEY;
1455 break;
1456 case AVMEDIA_TYPE_VIDEO:
1457 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1458 if (ret < 0) {
1459 fprintf(stderr, "Video encoding failed\n");
1460 exit_program(1);
1461 }
1462 video_size += ret;
1463 if(enc->coded_frame && enc->coded_frame->key_frame)
1464 pkt.flags |= AV_PKT_FLAG_KEY;
1465 if (ost->logfile && enc->stats_out) {
1466 fprintf(ost->logfile, "%s", enc->stats_out);
1467 }
1468 break;
1469 default:
1470 ret=-1;
1471 }
1472
1473 if (ret <= 0)
1474 break;
1475 pkt.data = bit_buffer;
1476 pkt.size = ret;
1477 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1478 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1479 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1480 }
1481 }
1482 }
1483 }
1484 }
1485
1486 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1487 static int output_packet(InputStream *ist, int ist_index,
1488 OutputStream *ost_table, int nb_ostreams,
1489 const AVPacket *pkt)
1490 {
1491 AVFormatContext *os;
1492 OutputStream *ost;
1493 int ret, i;
1494 int got_output;
1495 AVFrame picture;
1496 void *buffer_to_free = NULL;
1497 static unsigned int samples_size= 0;
1498 AVSubtitle subtitle, *subtitle_to_free;
1499 int64_t pkt_pts = AV_NOPTS_VALUE;
1500 #if CONFIG_AVFILTER
1501 int frame_available;
1502 #endif
1503 float quality;
1504
1505 AVPacket avpkt;
1506 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1507
1508 if(ist->next_pts == AV_NOPTS_VALUE)
1509 ist->next_pts= ist->pts;
1510
1511 if (pkt == NULL) {
1512 /* EOF handling */
1513 av_init_packet(&avpkt);
1514 avpkt.data = NULL;
1515 avpkt.size = 0;
1516 goto handle_eof;
1517 } else {
1518 avpkt = *pkt;
1519 }
1520
1521 if(pkt->dts != AV_NOPTS_VALUE)
1522 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1523 if(pkt->pts != AV_NOPTS_VALUE)
1524 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1525
1526 //while we have more to decode or while the decoder did output something on EOF
1527 while (avpkt.size > 0 || (!pkt && got_output)) {
1528 uint8_t *data_buf, *decoded_data_buf;
1529 int data_size, decoded_data_size;
1530 handle_eof:
1531 ist->pts= ist->next_pts;
1532
1533 if(avpkt.size && avpkt.size != pkt->size &&
1534 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1535 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1536 ist->showed_multi_packet_warning=1;
1537 }
1538
1539 /* decode the packet if needed */
1540 decoded_data_buf = NULL; /* fail safe */
1541 decoded_data_size= 0;
1542 data_buf = avpkt.data;
1543 data_size = avpkt.size;
1544 subtitle_to_free = NULL;
1545 if (ist->decoding_needed) {
1546 switch(ist->st->codec->codec_type) {
1547 case AVMEDIA_TYPE_AUDIO:{
1548 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1549 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1550 av_free(samples);
1551 samples= av_malloc(samples_size);
1552 }
1553 decoded_data_size= samples_size;
1554 /* XXX: could avoid copy if PCM 16 bits with same
1555 endianness as CPU */
1556 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1557 &avpkt);
1558 if (ret < 0)
1559 return ret;
1560 avpkt.data += ret;
1561 avpkt.size -= ret;
1562 data_size = ret;
1563 got_output = decoded_data_size > 0;
1564 /* Some bug in mpeg audio decoder gives */
1565 /* decoded_data_size < 0, it seems they are overflows */
1566 if (!got_output) {
1567 /* no audio frame */
1568 continue;
1569 }
1570 decoded_data_buf = (uint8_t *)samples;
1571 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1572 (ist->st->codec->sample_rate * ist->st->codec->channels);
1573 break;}
1574 case AVMEDIA_TYPE_VIDEO:
1575 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1576 /* XXX: allocate picture correctly */
1577 avcodec_get_frame_defaults(&picture);
1578 avpkt.pts = pkt_pts;
1579 avpkt.dts = ist->pts;
1580 pkt_pts = AV_NOPTS_VALUE;
1581
1582 ret = avcodec_decode_video2(ist->st->codec,
1583 &picture, &got_output, &avpkt);
1584 quality = same_quant ? picture.quality : 0;
1585 if (ret < 0)
1586 return ret;
1587 if (!got_output) {
1588 /* no picture yet */
1589 goto discard_packet;
1590 }
1591 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1592 if (ist->st->codec->time_base.num != 0) {
1593 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1594 ist->next_pts += ((int64_t)AV_TIME_BASE *
1595 ist->st->codec->time_base.num * ticks) /
1596 ist->st->codec->time_base.den;
1597 }
1598 avpkt.size = 0;
1599 buffer_to_free = NULL;
1600 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1601 break;
1602 case AVMEDIA_TYPE_SUBTITLE:
1603 ret = avcodec_decode_subtitle2(ist->st->codec,
1604 &subtitle, &got_output, &avpkt);
1605 if (ret < 0)
1606 return ret;
1607 if (!got_output) {
1608 goto discard_packet;
1609 }
1610 subtitle_to_free = &subtitle;
1611 avpkt.size = 0;
1612 break;
1613 default:
1614 return -1;
1615 }
1616 } else {
1617 switch(ist->st->codec->codec_type) {
1618 case AVMEDIA_TYPE_AUDIO:
1619 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1620 ist->st->codec->sample_rate;
1621 break;
1622 case AVMEDIA_TYPE_VIDEO:
1623 if (ist->st->codec->time_base.num != 0) {
1624 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1625 ist->next_pts += ((int64_t)AV_TIME_BASE *
1626 ist->st->codec->time_base.num * ticks) /
1627 ist->st->codec->time_base.den;
1628 }
1629 break;
1630 }
1631 ret = avpkt.size;
1632 avpkt.size = 0;
1633 }
1634
1635 // preprocess audio (volume)
1636 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1637 if (audio_volume != 256) {
1638 short *volp;
1639 volp = samples;
1640 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1641 int v = ((*volp) * audio_volume + 128) >> 8;
1642 if (v < -32768) v = -32768;
1643 if (v > 32767) v = 32767;
1644 *volp++ = v;
1645 }
1646 }
1647 }
1648
1649 /* frame rate emulation */
1650 if (rate_emu) {
1651 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1652 int64_t now = av_gettime() - ist->start;
1653 if (pts > now)
1654 usleep(pts - now);
1655 }
1656 /* if output time reached then transcode raw format,
1657 encode packets and output them */
1658 for (i = 0; i < nb_ostreams; i++) {
1659 OutputFile *of = &output_files[ost_table[i].file_index];
1660 int frame_size;
1661
1662 ost = &ost_table[i];
1663 if (ost->source_index != ist_index)
1664 continue;
1665
1666 if (of->start_time && ist->pts < of->start_time)
1667 continue;
1668
1669 if (of->recording_time != INT64_MAX &&
1670 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1671 (AVRational){1, 1000000}) >= 0) {
1672 ost->is_past_recording_time = 1;
1673 continue;
1674 }
1675
1676 #if CONFIG_AVFILTER
1677 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1678 ost->input_video_filter) {
1679 AVRational sar;
1680 if (ist->st->sample_aspect_ratio.num)
1681 sar = ist->st->sample_aspect_ratio;
1682 else
1683 sar = ist->st->codec->sample_aspect_ratio;
1684 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1685 }
1686 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1687 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1688 while (frame_available) {
1689 AVRational ist_pts_tb;
1690 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1691 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1692 if (ost->picref)
1693 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1694 #endif
1695 os = output_files[ost->file_index].ctx;
1696
1697 /* set the input output pts pairs */
1698 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1699
1700 if (ost->encoding_needed) {
1701 av_assert0(ist->decoding_needed);
1702 switch(ost->st->codec->codec_type) {
1703 case AVMEDIA_TYPE_AUDIO:
1704 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1705 break;
1706 case AVMEDIA_TYPE_VIDEO:
1707 #if CONFIG_AVFILTER
1708 if (ost->picref->video && !ost->frame_aspect_ratio)
1709 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1710 #endif
1711 do_video_out(os, ost, ist, &picture, &frame_size,
1712 same_quant ? quality : ost->st->codec->global_quality);
1713 if (vstats_filename && frame_size)
1714 do_video_stats(os, ost, frame_size);
1715 break;
1716 case AVMEDIA_TYPE_SUBTITLE:
1717 do_subtitle_out(os, ost, ist, &subtitle,
1718 pkt->pts);
1719 break;
1720 default:
1721 abort();
1722 }
1723 } else {
1724 AVFrame avframe; //FIXME/XXX remove this
1725 AVPacket opkt;
1726 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1727
1728 av_init_packet(&opkt);
1729
1730 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1731 #if !CONFIG_AVFILTER
1732 continue;
1733 #else
1734 goto cont;
1735 #endif
1736
1737 /* no reencoding needed : output the packet directly */
1738 /* force the input stream PTS */
1739
1740 avcodec_get_frame_defaults(&avframe);
1741 ost->st->codec->coded_frame= &avframe;
1742 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1743
1744 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1745 audio_size += data_size;
1746 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1747 video_size += data_size;
1748 ost->sync_opts++;
1749 }
1750
1751 opkt.stream_index= ost->index;
1752 if(pkt->pts != AV_NOPTS_VALUE)
1753 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1754 else
1755 opkt.pts= AV_NOPTS_VALUE;
1756
1757 if (pkt->dts == AV_NOPTS_VALUE)
1758 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1759 else
1760 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1761 opkt.dts -= ost_tb_start_time;
1762
1763 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1764 opkt.flags= pkt->flags;
1765
1766 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1767 if( ost->st->codec->codec_id != CODEC_ID_H264
1768 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1769 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1770 ) {
1771 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1772 opkt.destruct= av_destruct_packet;
1773 } else {
1774 opkt.data = data_buf;
1775 opkt.size = data_size;
1776 }
1777
1778 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1779 ost->st->codec->frame_number++;
1780 ost->frame_number++;
1781 av_free_packet(&opkt);
1782 }
1783 #if CONFIG_AVFILTER
1784 cont:
1785 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1786 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1787 if (ost->picref)
1788 avfilter_unref_buffer(ost->picref);
1789 }
1790 #endif
1791 }
1792
1793 av_free(buffer_to_free);
1794 /* XXX: allocate the subtitles in the codec ? */
1795 if (subtitle_to_free) {
1796 avsubtitle_free(subtitle_to_free);
1797 subtitle_to_free = NULL;
1798 }
1799 }
1800 discard_packet:
1801 if (pkt == NULL) {
1802 /* EOF handling */
1803 flush_encoders(ist_index, ost_table, nb_ostreams);
1804 }
1805
1806 return 0;
1807 }
1808
1809 static void print_sdp(OutputFile *output_files, int n)
1810 {
1811 char sdp[2048];
1812 int i;
1813 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1814
1815 if (!avc)
1816 exit_program(1);
1817 for (i = 0; i < n; i++)
1818 avc[i] = output_files[i].ctx;
1819
1820 av_sdp_create(avc, n, sdp, sizeof(sdp));
1821 printf("SDP:\n%s\n", sdp);
1822 fflush(stdout);
1823 av_freep(&avc);
1824 }
1825
1826 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1827 char *error, int error_len)
1828 {
1829 int i;
1830 InputStream *ist = &input_streams[ist_index];
1831 if (ist->decoding_needed) {
1832 AVCodec *codec = ist->dec;
1833 if (!codec)
1834 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1835 if (!codec) {
1836 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
1837 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1838 return AVERROR(EINVAL);
1839 }
1840
1841 /* update requested sample format for the decoder based on the
1842 corresponding encoder sample format */
1843 for (i = 0; i < nb_output_streams; i++) {
1844 OutputStream *ost = &output_streams[i];
1845 if (ost->source_index == ist_index) {
1846 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1847 break;
1848 }
1849 }
1850
1851 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1852 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
1853 ist->file_index, ist->st->index);
1854 return AVERROR(EINVAL);
1855 }
1856 assert_codec_experimental(ist->st->codec, 0);
1857 assert_avoptions(ist->opts);
1858 }
1859
1860 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;
1861 ist->next_pts = AV_NOPTS_VALUE;
1862 init_pts_correction(&ist->pts_ctx);
1863 ist->is_start = 1;
1864
1865 return 0;
1866 }
1867
1868 /*
1869 * The following code is the main loop of the file converter
1870 */
1871 static int transcode(OutputFile *output_files,
1872 int nb_output_files,
1873 InputFile *input_files,
1874 int nb_input_files)
1875 {
1876 int ret = 0, i;
1877 AVFormatContext *is, *os;
1878 AVCodecContext *codec, *icodec;
1879 OutputStream *ost;
1880 InputStream *ist;
1881 char error[1024];
1882 int want_sdp = 1;
1883 uint8_t *no_packet;
1884 int no_packet_count=0;
1885 int64_t timer_start;
1886
1887 if (!(no_packet = av_mallocz(nb_input_files)))
1888 exit_program(1);
1889
1890 if (rate_emu)
1891 for (i = 0; i < nb_input_streams; i++)
1892 input_streams[i].start = av_gettime();
1893
1894 /* output stream init */
1895 for(i=0;i<nb_output_files;i++) {
1896 os = output_files[i].ctx;
1897 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1898 av_dump_format(os, i, os->filename, 1);
1899 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1900 ret = AVERROR(EINVAL);
1901 goto fail;
1902 }
1903 }
1904
1905 /* for each output stream, we compute the right encoding parameters */
1906 for (i = 0; i < nb_output_streams; i++) {
1907 ost = &output_streams[i];
1908 os = output_files[ost->file_index].ctx;
1909 ist = &input_streams[ost->source_index];
1910
1911 codec = ost->st->codec;
1912 icodec = ist->st->codec;
1913
1914 ost->st->disposition = ist->st->disposition;
1915 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1916 codec->chroma_sample_location = icodec->chroma_sample_location;
1917
1918 if (ost->st->stream_copy) {
1919 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1920
1921 if (extra_size > INT_MAX)
1922 goto fail;
1923
1924 /* if stream_copy is selected, no need to decode or encode */
1925 codec->codec_id = icodec->codec_id;
1926 codec->codec_type = icodec->codec_type;
1927
1928 if(!codec->codec_tag){
1929 if( !os->oformat->codec_tag
1930 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1931 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1932 codec->codec_tag = icodec->codec_tag;
1933 }
1934
1935 codec->bit_rate = icodec->bit_rate;
1936 codec->rc_max_rate = icodec->rc_max_rate;
1937 codec->rc_buffer_size = icodec->rc_buffer_size;
1938 codec->extradata= av_mallocz(extra_size);
1939 if (!codec->extradata)
1940 goto fail;
1941 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1942 codec->extradata_size= icodec->extradata_size;
1943 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){
1944 codec->time_base = icodec->time_base;
1945 codec->time_base.num *= icodec->ticks_per_frame;
1946 av_reduce(&codec->time_base.num, &codec->time_base.den,
1947 codec->time_base.num, codec->time_base.den, INT_MAX);
1948 }else
1949 codec->time_base = ist->st->time_base;
1950 switch(codec->codec_type) {
1951 case AVMEDIA_TYPE_AUDIO:
1952 if(audio_volume != 256) {
1953 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1954 exit_program(1);
1955 }
1956 codec->channel_layout = icodec->channel_layout;
1957 codec->sample_rate = icodec->sample_rate;
1958 codec->channels = icodec->channels;
1959 codec->frame_size = icodec->frame_size;
1960 codec->audio_service_type = icodec->audio_service_type;
1961 codec->block_align= icodec->block_align;
1962 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1963 codec->block_align= 0;
1964 if(codec->codec_id == CODEC_ID_AC3)
1965 codec->block_align= 0;
1966 break;
1967 case AVMEDIA_TYPE_VIDEO:
1968 codec->pix_fmt = icodec->pix_fmt;
1969 codec->width = icodec->width;
1970 codec->height = icodec->height;
1971 codec->has_b_frames = icodec->has_b_frames;
1972 if (!codec->sample_aspect_ratio.num) {
1973 codec->sample_aspect_ratio =
1974 ost->st->sample_aspect_ratio =
1975 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1976 ist->st->codec->sample_aspect_ratio.num ?
1977 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1978 }
1979 break;
1980 case AVMEDIA_TYPE_SUBTITLE:
1981 codec->width = icodec->width;
1982 codec->height = icodec->height;
1983 break;
1984 case AVMEDIA_TYPE_DATA:
1985 break;
1986 default:
1987 abort();
1988 }
1989 } else {
1990 if (!ost->enc)
1991 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1992 switch(codec->codec_type) {
1993 case AVMEDIA_TYPE_AUDIO:
1994 ost->fifo= av_fifo_alloc(1024);
1995 if(!ost->fifo)
1996 goto fail;
1997 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1998 if (!codec->sample_rate) {
1999 codec->sample_rate = icodec->sample_rate;
2000 if (icodec->lowres)
2001 codec->sample_rate >>= icodec->lowres;
2002 }
2003 choose_sample_rate(ost->st, ost->enc);
2004 codec->time_base = (AVRational){1, codec->sample_rate};
2005 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2006 codec->sample_fmt = icodec->sample_fmt;
2007 choose_sample_fmt(ost->st, ost->enc);
2008 if (!codec->channels)
2009 codec->channels = icodec->channels;
2010 codec->channel_layout = icodec->channel_layout;
2011 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2012 codec->channel_layout = 0;
2013 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2014 icodec->request_channels = codec->channels;
2015 ist->decoding_needed = 1;
2016 ost->encoding_needed = 1;
2017 ost->resample_sample_fmt = icodec->sample_fmt;
2018 ost->resample_sample_rate = icodec->sample_rate;
2019 ost->resample_channels = icodec->channels;
2020 break;
2021 case AVMEDIA_TYPE_VIDEO:
2022 if (codec->pix_fmt == PIX_FMT_NONE)
2023 codec->pix_fmt = icodec->pix_fmt;
2024 choose_pixel_fmt(ost->st, ost->enc);
2025
2026 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2027 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2028 exit_program(1);
2029 }
2030
2031 if (!codec->width || !codec->height) {
2032 codec->width = icodec->width;
2033 codec->height = icodec->height;
2034 }
2035
2036 ost->video_resample = codec->width != icodec->width ||
2037 codec->height != icodec->height ||
2038 codec->pix_fmt != icodec->pix_fmt;
2039 if (ost->video_resample) {
2040 #if !CONFIG_AVFILTER
2041 avcodec_get_frame_defaults(&ost->pict_tmp);
2042 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2043 codec->width, codec->height)) {
2044 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2045 exit_program(1);
2046 }
2047 ost->img_resample_ctx = sws_getContext(
2048 icodec->width,
2049 icodec->height,
2050 icodec->pix_fmt,
2051 codec->width,
2052 codec->height,
2053 codec->pix_fmt,
2054 ost->sws_flags, NULL, NULL, NULL);
2055 if (ost->img_resample_ctx == NULL) {
2056 fprintf(stderr, "Cannot get resampling context\n");
2057 exit_program(1);
2058 }
2059 #endif
2060 codec->bits_per_raw_sample= 0;
2061 }
2062
2063 ost->resample_height = icodec->height;
2064 ost->resample_width = icodec->width;
2065 ost->resample_pix_fmt= icodec->pix_fmt;
2066 ost->encoding_needed = 1;
2067 ist->decoding_needed = 1;
2068
2069 if (!ost->frame_rate.num)
2070 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2071 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2072 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2073 ost->frame_rate = ost->enc->supported_framerates[idx];
2074 }
2075 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2076
2077 #if CONFIG_AVFILTER
2078 if (configure_video_filters(ist, ost)) {
2079 fprintf(stderr, "Error opening filters!\n");
2080 exit(1);
2081 }
2082 #endif
2083 break;
2084 case AVMEDIA_TYPE_SUBTITLE:
2085 ost->encoding_needed = 1;
2086 ist->decoding_needed = 1;
2087 break;
2088 default:
2089 abort();
2090 break;
2091 }
2092 /* two pass mode */
2093 if (ost->encoding_needed &&
2094 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2095 char logfilename[1024];
2096 FILE *f;
2097
2098 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2099 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2100 i);
2101 if (codec->flags & CODEC_FLAG_PASS1) {
2102 f = fopen(logfilename, "wb");
2103 if (!f) {
2104 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2105 exit_program(1);
2106 }
2107 ost->logfile = f;
2108 } else {
2109 char *logbuffer;
2110 size_t logbuffer_size;
2111 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2112 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2113 exit_program(1);
2114 }
2115 codec->stats_in = logbuffer;
2116 }
2117 }
2118 }
2119 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2120 int size= codec->width * codec->height;
2121 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2122 }
2123 }
2124
2125 if (!bit_buffer)
2126 bit_buffer = av_malloc(bit_buffer_size);
2127 if (!bit_buffer) {
2128 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2129 bit_buffer_size);
2130 ret = AVERROR(ENOMEM);
2131 goto fail;
2132 }
2133
2134 /* open each encoder */
2135 for (i = 0; i < nb_output_streams; i++) {
2136 ost = &output_streams[i];
2137 if (ost->encoding_needed) {
2138 AVCodec *codec = ost->enc;
2139 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2140 if (!codec) {
2141 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2142 ost->st->codec->codec_id, ost->file_index, ost->index);
2143 ret = AVERROR(EINVAL);
2144 goto dump_format;
2145 }
2146 if (dec->subtitle_header) {
2147 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2148 if (!ost->st->codec->subtitle_header) {
2149 ret = AVERROR(ENOMEM);
2150 goto dump_format;
2151 }
2152 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2153 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2154 }
2155 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2156 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2157 ost->file_index, ost->index);
2158 ret = AVERROR(EINVAL);
2159 goto dump_format;
2160 }
2161 assert_codec_experimental(ost->st->codec, 1);
2162 assert_avoptions(ost->opts);
2163 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2164 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2165 "It takes bits/s as argument, not kbits/s\n");
2166 extra_size += ost->st->codec->extradata_size;
2167 }
2168 }
2169
2170 /* init input streams */
2171 for (i = 0; i < nb_input_streams; i++)
2172 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0))
2173 goto dump_format;
2174
2175 /* open files and write file headers */
2176 for (i = 0; i < nb_output_files; i++) {
2177 os = output_files[i].ctx;
2178 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2179 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2180 ret = AVERROR(EINVAL);
2181 goto dump_format;
2182 }
2183 assert_avoptions(output_files[i].opts);
2184 if (strcmp(os->oformat->name, "rtp")) {
2185 want_sdp = 0;
2186 }
2187 }
2188
2189 dump_format:
2190 /* dump the file output parameters - cannot be done before in case
2191 of stream copy */
2192 for(i=0;i<nb_output_files;i++) {
2193 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2194 }
2195
2196 /* dump the stream mapping */
2197 if (verbose >= 0) {
2198 fprintf(stderr, "Stream mapping:\n");
2199 for (i = 0; i < nb_output_streams;i ++) {
2200 ost = &output_streams[i];
2201 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2202 input_streams[ost->source_index].file_index,
2203 input_streams[ost->source_index].st->index,
2204 ost->file_index,
2205 ost->index);
2206 if (ost->sync_ist != &input_streams[ost->source_index])
2207 fprintf(stderr, " [sync #%d.%d]",
2208 ost->sync_ist->file_index,
2209 ost->sync_ist->st->index);
2210 if (ost->st->stream_copy)
2211 fprintf(stderr, " (copy)");
2212 fprintf(stderr, "\n");
2213 }
2214 }
2215
2216 if (ret) {
2217 fprintf(stderr, "%s\n", error);
2218 goto fail;
2219 }
2220
2221 if (want_sdp) {
2222 print_sdp(output_files, nb_output_files);
2223 }
2224
2225 if (verbose >= 0)
2226 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2227 term_init();
2228
2229 timer_start = av_gettime();
2230
2231 for(; received_sigterm == 0;) {
2232 int file_index, ist_index;
2233 AVPacket pkt;
2234 int64_t ipts_min;
2235 double opts_min;
2236
2237 redo:
2238 ipts_min = INT64_MAX;
2239 opts_min= 1e100;
2240
2241 /* select the stream that we must read now by looking at the
2242 smallest output pts */
2243 file_index = -1;
2244 for (i = 0; i < nb_output_streams; i++) {
2245 int64_t ipts;
2246 double opts;
2247 ost = &output_streams[i];
2248 os = output_files[ost->file_index].ctx;
2249 ist = &input_streams[ost->source_index];
2250 if(ost->is_past_recording_time || no_packet[ist->file_index])
2251 continue;
2252 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2253 ipts = ist->pts;
2254 if (!input_files[ist->file_index].eof_reached){
2255 if(ipts < ipts_min) {
2256 ipts_min = ipts;
2257 if(input_sync ) file_index = ist->file_index;
2258 }
2259 if(opts < opts_min) {
2260 opts_min = opts;
2261 if(!input_sync) file_index = ist->file_index;
2262 }
2263 }
2264 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2265 file_index= -1;
2266 break;
2267 }
2268 }
2269 /* if none, if is finished */
2270 if (file_index < 0) {
2271 if(no_packet_count){
2272 no_packet_count=0;
2273 memset(no_packet, 0, nb_input_files);
2274 usleep(10000);
2275 continue;
2276 }
2277 break;
2278 }
2279
2280 /* finish if limit size exhausted */
2281 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2282 break;
2283
2284 /* read a frame from it and output it in the fifo */
2285 is = input_files[file_index].ctx;
2286 ret= av_read_frame(is, &pkt);
2287 if(ret == AVERROR(EAGAIN)){
2288 no_packet[file_index]=1;
2289 no_packet_count++;
2290 continue;
2291 }
2292 if (ret < 0) {
2293 input_files[file_index].eof_reached = 1;
2294 if (opt_shortest)
2295 break;
2296 else
2297 continue;
2298 }
2299
2300 no_packet_count=0;
2301 memset(no_packet, 0, nb_input_files);
2302
2303 if (do_pkt_dump) {
2304 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2305 is->streams[pkt.stream_index]);
2306 }
2307 /* the following test is needed in case new streams appear
2308 dynamically in stream : we ignore them */
2309 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2310 goto discard_packet;
2311 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2312 ist = &input_streams[ist_index];
2313 if (ist->discard)
2314 goto discard_packet;
2315
2316 if (pkt.dts != AV_NOPTS_VALUE)
2317 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2318 if (pkt.pts != AV_NOPTS_VALUE)
2319 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2320
2321 if (ist->ts_scale) {
2322 if(pkt.pts != AV_NOPTS_VALUE)
2323 pkt.pts *= ist->ts_scale;
2324 if(pkt.dts != AV_NOPTS_VALUE)
2325 pkt.dts *= ist->ts_scale;
2326 }
2327
2328 // 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);
2329 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2330 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2331 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2332 int64_t delta= pkt_dts - ist->next_pts;
2333 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2334 input_files[ist->file_index].ts_offset -= delta;
2335 if (verbose > 2)
2336 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2337 delta, input_files[ist->file_index].ts_offset);
2338 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2339 if(pkt.pts != AV_NOPTS_VALUE)
2340 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2341 }
2342 }
2343
2344 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2345 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2346
2347 if (verbose >= 0)
2348 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2349 ist->file_index, ist->st->index);
2350 if (exit_on_error)
2351 exit_program(1);
2352 av_free_packet(&pkt);
2353 goto redo;
2354 }
2355
2356 discard_packet:
2357 av_free_packet(&pkt);
2358
2359 /* dump report by using the output first video and audio streams */
2360 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2361 }
2362
2363 /* at the end of stream, we must flush the decoder buffers */
2364 for (i = 0; i < nb_input_streams; i++) {
2365 ist = &input_streams[i];
2366 if (ist->decoding_needed) {
2367 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2368 }
2369 }
2370
2371 term_exit();
2372
2373 /* write the trailer if needed and close file */
2374 for(i=0;i<nb_output_files;i++) {
2375 os = output_files[i].ctx;
2376 av_write_trailer(os);
2377 }
2378
2379 /* dump report by using the first video and audio streams */
2380 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2381
2382 /* close each encoder */
2383 for (i = 0; i < nb_output_streams; i++) {
2384 ost = &output_streams[i];
2385 if (ost->encoding_needed) {
2386 av_freep(&ost->st->codec->stats_in);
2387 avcodec_close(ost->st->codec);
2388 }
2389 #if CONFIG_AVFILTER
2390 avfilter_graph_free(&ost->graph);
2391 #endif
2392 }
2393
2394 /* close each decoder */
2395 for (i = 0; i < nb_input_streams; i++) {
2396 ist = &input_streams[i];
2397 if (ist->decoding_needed) {
2398 avcodec_close(ist->st->codec);
2399 }
2400 }
2401
2402 /* finished ! */
2403 ret = 0;
2404
2405 fail:
2406 av_freep(&bit_buffer);
2407 av_freep(&no_packet);
2408
2409 if (output_streams) {
2410 for (i = 0; i < nb_output_streams; i++) {
2411 ost = &output_streams[i];
2412 if (ost) {
2413 if (ost->st->stream_copy)
2414 av_freep(&ost->st->codec->extradata);
2415 if (ost->logfile) {
2416 fclose(ost->logfile);
2417 ost->logfile = NULL;
2418 }
2419 av_fifo_free(ost->fifo); /* works even if fifo is not
2420 initialized but set to zero */
2421 av_freep(&ost->st->codec->subtitle_header);
2422 av_free(ost->pict_tmp.data[0]);
2423 av_free(ost->forced_kf_pts);
2424 if (ost->video_resample)
2425 sws_freeContext(ost->img_resample_ctx);
2426 if (ost->resample)
2427 audio_resample_close(ost->resample);
2428 if (ost->reformat_ctx)
2429 av_audio_convert_free(ost->reformat_ctx);
2430 av_dict_free(&ost->opts);
2431 }
2432 }
2433 }
2434 return ret;
2435 }
2436
2437 static int opt_format(const char *opt, const char *arg)
2438 {
2439 last_asked_format = arg;
2440 return 0;
2441 }
2442
2443 static int opt_video_rc_override_string(const char *opt, const char *arg)
2444 {
2445 video_rc_override_string = arg;
2446 return 0;
2447 }
2448
2449 static int opt_me_threshold(const char *opt, const char *arg)
2450 {
2451 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2452 return 0;
2453 }
2454
2455 static int opt_verbose(const char *opt, const char *arg)
2456 {
2457 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2458 return 0;
2459 }
2460
2461 static int opt_frame_rate(const char *opt, const char *arg)
2462 {
2463 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2464 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2465 exit_program(1);
2466 }
2467 return 0;
2468 }
2469
2470 static int opt_frame_crop(const char *opt, const char *arg)
2471 {
2472 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2473 return AVERROR(EINVAL);
2474 }
2475
2476 static int opt_frame_size(const char *opt, const char *arg)
2477 {
2478 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2479 fprintf(stderr, "Incorrect frame size\n");
2480 return AVERROR(EINVAL);
2481 }
2482 return 0;
2483 }
2484
2485 static int opt_pad(const char *opt, const char *arg) {
2486 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2487 return -1;
2488 }
2489
2490 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2491 {
2492 if (strcmp(arg, "list")) {
2493 frame_pix_fmt = av_get_pix_fmt(arg);
2494 if (frame_pix_fmt == PIX_FMT_NONE) {
2495 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2496 return AVERROR(EINVAL);
2497 }
2498 } else {
2499 show_pix_fmts();
2500 exit_program(0);
2501 }
2502 return 0;
2503 }
2504
2505 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2506 {
2507 int x = 0, y = 0;
2508 double ar = 0;
2509 const char *p;
2510 char *end;
2511
2512 p = strchr(arg, ':');
2513 if (p) {
2514 x = strtol(arg, &end, 10);
2515 if (end == p)
2516 y = strtol(end+1, &end, 10);
2517 if (x > 0 && y > 0)
2518 ar = (double)x / (double)y;
2519 } else
2520 ar = strtod(arg, NULL);
2521
2522 if (!ar) {
2523 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2524 return AVERROR(EINVAL);
2525 }
2526 frame_aspect_ratio = ar;
2527 return 0;
2528 }
2529
2530 static int opt_metadata(const char *opt, const char *arg)
2531 {
2532 char *mid= strchr(arg, '=');
2533
2534 if(!mid){
2535 fprintf(stderr, "Missing =\n");
2536 exit_program(1);
2537 }
2538 *mid++= 0;
2539
2540 av_dict_set(&metadata, arg, mid, 0);
2541
2542 return 0;
2543 }
2544
2545 static int opt_qscale(const char *opt, const char *arg)
2546 {
2547 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2548 if (video_qscale == 0) {
2549 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2550 return AVERROR(EINVAL);
2551 }
2552 return 0;
2553 }
2554
2555 static int opt_top_field_first(const char *opt, const char *arg)
2556 {
2557 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2558 return 0;
2559 }
2560
2561 static int opt_thread_count(const char *opt, const char *arg)
2562 {
2563 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2564 #if !HAVE_THREADS
2565 if (verbose >= 0)
2566 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2567 #endif
2568 return 0;
2569 }
2570
2571 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2572 {
2573 if (strcmp(arg, "list")) {
2574 audio_sample_fmt = av_get_sample_fmt(arg);
2575 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2576 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2577 return AVERROR(EINVAL);
2578 }
2579 } else {
2580 int i;
2581 char fmt_str[128];
2582 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2583 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2584 exit_program(0);
2585 }
2586 return 0;
2587 }
2588
2589 static int opt_audio_rate(const char *opt, const char *arg)
2590 {
2591 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2592 return 0;
2593 }
2594
2595 static int opt_audio_channels(const char *opt, const char *arg)
2596 {
2597 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2598 return 0;
2599 }
2600
2601 static int opt_codec(const char *opt, const char *arg)
2602 {
2603 return av_dict_set(&codec_names, opt, arg, 0);
2604 }
2605
2606 static int opt_audio_codec(const char *opt, const char *arg)
2607 {
2608 return opt_codec("codec:a", arg);
2609 }
2610
2611 static int opt_video_codec(const char *opt, const char *arg)
2612 {
2613 return opt_codec("codec:v", arg);
2614 }
2615
2616 static int opt_subtitle_codec(const char *opt, const char *arg)
2617 {
2618 return opt_codec("codec:s", arg);
2619 }
2620
2621 static int opt_data_codec(const char *opt, const char *arg)
2622 {
2623 return opt_codec("codec:d", arg);
2624 }
2625
2626 static int opt_codec_tag(const char *opt, const char *arg)
2627 {
2628 char *tail;
2629 uint32_t *codec_tag;
2630
2631 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2632 !strcmp(opt, "vtag") ? &video_codec_tag :
2633 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2634 if (!codec_tag)
2635 return -1;
2636
2637 *codec_tag = strtol(arg, &tail, 0);
2638 if (!tail || *tail)
2639 *codec_tag = AV_RL32(arg);
2640
2641 return 0;
2642 }
2643
2644 static int opt_map(const char *opt, const char *arg)
2645 {
2646 StreamMap *m = NULL;
2647 int i, negative = 0, file_idx;
2648 int sync_file_idx = -1, sync_stream_idx;
2649 char *p, *sync;
2650 char *map;
2651
2652 if (*arg == '-') {
2653 negative = 1;
2654 arg++;
2655 }
2656 map = av_strdup(arg);
2657
2658 /* parse sync stream first, just pick first matching stream */
2659 if (sync = strchr(map, ',')) {
2660 *sync = 0;
2661 sync_file_idx = strtol(sync + 1, &sync, 0);
2662 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2663 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2664 exit_program(1);
2665 }
2666 if (*sync)
2667 sync++;
2668 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2669 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2670 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2671 sync_stream_idx = i;
2672 break;
2673 }
2674 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2675 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2676 "match any streams.\n", arg);
2677 exit_program(1);
2678 }
2679 }
2680
2681
2682 file_idx = strtol(map, &p, 0);
2683 if (file_idx >= nb_input_files || file_idx < 0) {
2684 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2685 exit_program(1);
2686 }
2687 if (negative)
2688 /* disable some already defined maps */
2689 for (i = 0; i < nb_stream_maps; i++) {
2690 m = &stream_maps[i];
2691 if (check_stream_specifier(input_files[m->file_index].ctx,
2692 input_files[m->file_index].ctx->streams[m->stream_index],
2693 *p == ':' ? p + 1 : p) > 0)
2694 m->disabled = 1;
2695 }
2696 else
2697 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2698 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2699 *p == ':' ? p + 1 : p) <= 0)
2700 continue;
2701 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2702 m = &stream_maps[nb_stream_maps - 1];
2703
2704 m->file_index = file_idx;
2705 m->stream_index = i;
2706
2707 if (sync_file_idx >= 0) {
2708 m->sync_file_index = sync_file_idx;
2709 m->sync_stream_index = sync_stream_idx;
2710 } else {
2711 m->sync_file_index = file_idx;
2712 m->sync_stream_index = i;
2713 }
2714 }
2715
2716 if (!m) {
2717 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2718 exit_program(1);
2719 }
2720
2721 av_freep(&map);
2722 return 0;
2723 }
2724
2725 static void parse_meta_type(char *arg, char *type, int *index)
2726 {
2727 if (*arg == ':') {
2728 *type = *(++arg);
2729 switch (*arg) {
2730 case 'g':
2731 break;
2732 case 's':
2733 case 'c':
2734 case 'p':
2735 if (*(++arg) == ':')
2736 *index = strtol(++arg, NULL, 0);
2737 break;
2738 default:
2739 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2740 exit_program(1);
2741 }
2742 } else
2743 *type = 'g';
2744 }
2745
2746 static int opt_map_metadata(const char *opt, const char *arg)
2747 {
2748 MetadataMap *m, *m1;
2749 char *p;
2750
2751 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2752 &nb_meta_data_maps, nb_meta_data_maps + 1);
2753
2754 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2755 m->file = strtol(arg, &p, 0);
2756 parse_meta_type(p, &m->type, &m->index);
2757
2758 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2759 if (p = strchr(opt, ':'))
2760 parse_meta_type(p, &m1->type, &m1->index);
2761 else
2762 m1->type = 'g';
2763
2764 if (m->type == 'g' || m1->type == 'g')
2765 metadata_global_autocopy = 0;
2766 if (m->type == 's' || m1->type == 's')
2767 metadata_streams_autocopy = 0;
2768 if (m->type == 'c' || m1->type == 'c')
2769 metadata_chapters_autocopy = 0;
2770
2771 return 0;
2772 }
2773
2774 static int opt_input_ts_scale(const char *opt, const char *arg)
2775 {
2776 return av_dict_set(&ts_scale, opt, arg, 0);
2777 }
2778
2779 static int opt_recording_time(const char *opt, const char *arg)
2780 {
2781 recording_time = parse_time_or_die(opt, arg, 1);
2782 return 0;
2783 }
2784
2785 static int opt_start_time(const char *opt, const char *arg)
2786 {
2787 start_time = parse_time_or_die(opt, arg, 1);
2788 return 0;
2789 }
2790
2791 static int opt_input_ts_offset(const char *opt, const char *arg)
2792 {
2793 input_ts_offset = parse_time_or_die(opt, arg, 1);
2794 return 0;
2795 }
2796
2797 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2798 {
2799 const char *codec_string = encoder ? "encoder" : "decoder";
2800 AVCodec *codec;
2801
2802 if(!name)
2803 return CODEC_ID_NONE;
2804 codec = encoder ?
2805 avcodec_find_encoder_by_name(name) :
2806 avcodec_find_decoder_by_name(name);
2807 if(!codec) {
2808 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2809 exit_program(1);
2810 }
2811 if(codec->type != type) {
2812 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2813 exit_program(1);
2814 }
2815 return codec->id;
2816 }
2817
2818 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2819 {
2820 AVDictionaryEntry *e = NULL;
2821 char *codec_name = NULL;
2822 int ret;
2823
2824 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2825 char *p = strchr(e->key, ':');
2826
2827 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2828 codec_name = e->value;
2829 else if (ret < 0)
2830 exit_program(1);
2831 }
2832
2833 if (!codec_name) {
2834 if (s->oformat) {
2835 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2836 return avcodec_find_encoder(st->codec->codec_id);
2837 }
2838 } else if (!strcmp(codec_name, "copy"))
2839 st->stream_copy = 1;
2840 else {
2841 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2842 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2843 avcodec_find_decoder_by_name(codec_name);
2844 }
2845
2846 return NULL;
2847 }
2848
2849 /**
2850 * Add all the streams from the given input file to the global
2851 * list of input streams.
2852 */
2853 static void add_input_streams(AVFormatContext *ic)
2854 {
2855 int i, rfps, rfps_base, ret;
2856
2857 for (i = 0; i < ic->nb_streams; i++) {
2858 AVStream *st = ic->streams[i];
2859 AVCodecContext *dec = st->codec;
2860 AVDictionaryEntry *e = NULL;
2861 InputStream *ist;
2862 char *scale = NULL;
2863
2864 dec->thread_count = thread_count;
2865
2866 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2867 ist = &input_streams[nb_input_streams - 1];
2868 ist->st = st;
2869 ist->file_index = nb_input_files;
2870 ist->discard = 1;
2871 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2872
2873 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2874 char *p = strchr(e->key, ':');
2875
2876 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2877 scale = e->value;
2878 else if (ret < 0)
2879 exit_program(1);
2880 }
2881 if (scale)
2882 ist->ts_scale = strtod(scale, NULL);
2883
2884 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2885
2886 switch (dec->codec_type) {
2887 case AVMEDIA_TYPE_AUDIO:
2888 if(audio_disable)
2889 st->discard= AVDISCARD_ALL;
2890 break;
2891 case AVMEDIA_TYPE_VIDEO:
2892 rfps = ic->streams[i]->r_frame_rate.num;
2893 rfps_base = ic->streams[i]->r_frame_rate.den;
2894 if (dec->lowres) {
2895 dec->flags |= CODEC_FLAG_EMU_EDGE;
2896 dec->height >>= dec->lowres;
2897 dec->width >>= dec->lowres;
2898 }
2899 if(me_threshold)
2900 dec->debug |= FF_DEBUG_MV;
2901
2902 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2903
2904 if (verbose >= 0)
2905 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2906 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2907
2908 (float)rfps / rfps_base, rfps, rfps_base);
2909 }
2910
2911 if(video_disable)
2912 st->discard= AVDISCARD_ALL;
2913 else if(video_discard)
2914 st->discard= video_discard;
2915 break;
2916 case AVMEDIA_TYPE_DATA:
2917 break;
2918 case AVMEDIA_TYPE_SUBTITLE:
2919 if(subtitle_disable)
2920 st->discard = AVDISCARD_ALL;
2921 break;
2922 case AVMEDIA_TYPE_ATTACHMENT:
2923 case AVMEDIA_TYPE_UNKNOWN:
2924 break;
2925 default:
2926 abort();
2927 }
2928 }
2929 }
2930
2931 static int opt_input_file(const char *opt, const char *filename)
2932 {
2933 AVFormatContext *ic;
2934 AVInputFormat *file_iformat = NULL;
2935 int err, i, ret;
2936 int64_t timestamp;
2937 uint8_t buf[128];
2938 AVDictionary **opts;
2939 int orig_nb_streams; // number of streams before avformat_find_stream_info
2940
2941 if (last_asked_format) {
2942 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2943 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2944 exit_program(1);
2945 }
2946 last_asked_format = NULL;
2947 }
2948
2949 if (!strcmp(filename, "-"))
2950 filename = "pipe:";
2951
2952 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2953 !strcmp(filename, "/dev/stdin");
2954
2955 /* get default parameters from command line */
2956 ic = avformat_alloc_context();
2957 if (!ic) {
2958 print_error(filename, AVERROR(ENOMEM));
2959 exit_program(1);
2960 }
2961 if (audio_sample_rate) {
2962 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2963 av_dict_set(&format_opts, "sample_rate", buf, 0);
2964 }
2965 if (audio_channels) {
2966 snprintf(buf, sizeof(buf), "%d", audio_channels);
2967 av_dict_set(&format_opts, "channels", buf, 0);
2968 }
2969 if (frame_rate.num) {
2970 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2971 av_dict_set(&format_opts, "framerate", buf, 0);
2972 }
2973 if (frame_width && frame_height) {
2974 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2975 av_dict_set(&format_opts, "video_size", buf, 0);
2976 }
2977 if (frame_pix_fmt != PIX_FMT_NONE)
2978 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2979
2980 ic->flags |= AVFMT_FLAG_NONBLOCK;
2981
2982 /* open the input file with generic libav function */
2983 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2984 if (err < 0) {
2985 print_error(filename, err);
2986 exit_program(1);
2987 }
2988 assert_avoptions(format_opts);
2989
2990 if(opt_programid) {
2991 int i, j;
2992 int found=0;
2993 for(i=0; i<ic->nb_streams; i++){
2994 ic->streams[i]->discard= AVDISCARD_ALL;
2995 }
2996 for(i=0; i<ic->nb_programs; i++){
2997 AVProgram *p= ic->programs[i];
2998 if(p->id != opt_programid){
2999 p->discard = AVDISCARD_ALL;
3000 }else{
3001 found=1;
3002 for(j=0; j<p->nb_stream_indexes; j++){
3003 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3004 }
3005 }
3006 }
3007 if(!found){
3008 fprintf(stderr, "Specified program id not found\n");
3009 exit_program(1);
3010 }
3011 opt_programid=0;
3012 }
3013
3014 /* apply forced codec ids */
3015 for (i = 0; i < ic->nb_streams; i++)
3016 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3017
3018 /* Set AVCodecContext options for avformat_find_stream_info */
3019 opts = setup_find_stream_info_opts(ic, codec_opts);
3020 orig_nb_streams = ic->nb_streams;
3021
3022 /* If not enough info to get the stream parameters, we decode the
3023 first frames to get it. (used in mpeg case for example) */
3024 ret = avformat_find_stream_info(ic, opts);
3025 if (ret < 0 && verbose >= 0) {
3026 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3027 av_close_input_file(ic);
3028 exit_program(1);
3029 }
3030
3031 timestamp = start_time;
3032 /* add the stream start time */
3033 if (ic->start_time != AV_NOPTS_VALUE)
3034 timestamp += ic->start_time;
3035
3036 /* if seeking requested, we execute it */
3037 if (start_time != 0) {
3038 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3039 if (ret < 0) {
3040 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3041 filename, (double)timestamp / AV_TIME_BASE);
3042 }
3043 /* reset seek info */
3044 start_time = 0;
3045 }
3046
3047 /* update the current parameters so that they match the one of the input stream */
3048 add_input_streams(ic);
3049
3050 /* dump the file content */
3051 if (verbose >= 0)
3052 av_dump_format(ic, nb_input_files, filename, 0);
3053
3054 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3055 input_files[nb_input_files - 1].ctx = ic;
3056 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3057 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3058
3059 frame_rate = (AVRational){0, 0};
3060 frame_pix_fmt = PIX_FMT_NONE;
3061 frame_height = 0;
3062 frame_width = 0;
3063 audio_sample_rate = 0;
3064 audio_channels = 0;
3065 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3066 av_dict_free(&ts_scale);
3067
3068 for (i = 0; i < orig_nb_streams; i++)
3069 av_dict_free(&opts[i]);
3070 av_freep(&opts);
3071 av_dict_free(&codec_names);
3072 uninit_opts();
3073 init_opts();
3074 return 0;
3075 }
3076
3077 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3078 AVCodecContext *avctx)
3079 {
3080 char *p;
3081 int n = 1, i;
3082 int64_t t;
3083
3084 for (p = kf; *p; p++)
3085 if (*p == ',')
3086 n++;
3087 ost->forced_kf_count = n;
3088 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3089 if (!ost->forced_kf_pts) {
3090 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3091 exit_program(1);
3092 }
3093 for (i = 0; i < n; i++) {
3094 p = i ? strchr(p, ',') + 1 : kf;
3095 t = parse_time_or_die("force_key_frames", p, 1);
3096 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3097 }
3098 }
3099
3100 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3101 {
3102 OutputStream *ost;
3103 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3104 int idx = oc->nb_streams - 1;
3105
3106 if (!st) {
3107 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3108 exit_program(1);
3109 }
3110
3111 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3112 nb_output_streams + 1);
3113 ost = &output_streams[nb_output_streams - 1];
3114 ost->file_index = nb_output_files;
3115 ost->index = idx;
3116 ost->st = st;
3117 st->codec->codec_type = type;
3118 ost->enc = choose_codec(oc, st, type, codec_names);
3119 if (ost->enc) {
3120 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3121 }
3122
3123 avcodec_get_context_defaults3(st->codec, ost->enc);
3124 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3125
3126 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3127 return ost;
3128 }
3129
3130 static OutputStream *new_video_stream(AVFormatContext *oc)
3131 {
3132 AVStream *st;
3133 OutputStream *ost;
3134 AVCodecContext *video_enc;
3135
3136 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3137 st = ost->st;
3138 if (!st->stream_copy) {
3139 ost->frame_aspect_ratio = frame_aspect_ratio;
3140 frame_aspect_ratio = 0;
3141 #if CONFIG_AVFILTER
3142 ost->avfilter= vfilters;
3143 vfilters = NULL;
3144 #endif
3145 }
3146
3147 ost->bitstream_filters = video_bitstream_filters;
3148 video_bitstream_filters= NULL;
3149
3150 st->codec->thread_count= thread_count;
3151
3152 video_enc = st->codec;
3153
3154 if(video_codec_tag)
3155 video_enc->codec_tag= video_codec_tag;
3156
3157 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3158 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3159 }
3160
3161 if (st->stream_copy) {
3162 video_enc->sample_aspect_ratio =
3163 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3164 } else {
3165 const char *p;
3166 int i;
3167
31