avconv: re-add nb_streams to InputFile.
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; ///< file index
94 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; ///< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 static const char *last_asked_format = NULL;
101 static AVDictionary *ts_scale;
102
103 static StreamMap *stream_maps = NULL;
104 static int nb_stream_maps;
105
106 static AVDictionary *codec_names;
107
108 /* first item specifies output metadata, second is input */
109 static MetadataMap (*meta_data_maps)[2] = NULL;
110 static int nb_meta_data_maps;
111 static int metadata_global_autocopy = 1;
112 static int metadata_streams_autocopy = 1;
113 static int metadata_chapters_autocopy = 1;
114
115 static int chapters_input_file = INT_MAX;
116
117 /* indexed by output file stream index */
118 static int *streamid_map = NULL;
119 static int nb_streamid_map = 0;
120
121 static int frame_width = 0;
122 static int frame_height = 0;
123 static float frame_aspect_ratio = 0;
124 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
125 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
126 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
127 static AVRational frame_rate;
128 static float video_qscale = 0;
129 static uint16_t *intra_matrix = NULL;
130 static uint16_t *inter_matrix = NULL;
131 static const char *video_rc_override_string=NULL;
132 static int video_disable = 0;
133 static int video_discard = 0;
134 static unsigned int video_codec_tag = 0;
135 static char *video_language = NULL;
136 static int same_quant = 0;
137 static int do_deinterlace = 0;
138 static int top_field_first = -1;
139 static int me_threshold = 0;
140 static int intra_dc_precision = 8;
141 static int qp_hist = 0;
142 #if CONFIG_AVFILTER
143 static char *vfilters = NULL;
144 #endif
145
146 static int audio_sample_rate = 0;
147 #define QSCALE_NONE -99999
148 static float audio_qscale = QSCALE_NONE;
149 static int audio_disable = 0;
150 static int audio_channels = 0;
151 static unsigned int audio_codec_tag = 0;
152 static char *audio_language = NULL;
153
154 static int subtitle_disable = 0;
155 static char *subtitle_language = NULL;
156 static unsigned int subtitle_codec_tag = 0;
157
158 static int data_disable = 0;
159 static unsigned int data_codec_tag = 0;
160
161 static float mux_preload= 0.5;
162 static float mux_max_delay= 0.7;
163
164 static int64_t recording_time = INT64_MAX;
165 static int64_t start_time = 0;
166 static int64_t input_ts_offset = 0;
167 static int file_overwrite = 0;
168 static AVDictionary *metadata;
169 static int do_benchmark = 0;
170 static int do_hex_dump = 0;
171 static int do_pkt_dump = 0;
172 static int do_psnr = 0;
173 static int do_pass = 0;
174 static char *pass_logfilename_prefix = NULL;
175 static int video_sync_method= -1;
176 static int audio_sync_method= 0;
177 static float audio_drift_threshold= 0.1;
178 static int copy_ts= 0;
179 static int copy_tb;
180 static int opt_shortest = 0;
181 static char *vstats_filename;
182 static FILE *vstats_file;
183 static int opt_programid = 0;
184 static int copy_initial_nonkeyframes = 0;
185
186 static int rate_emu = 0;
187
188 static int audio_volume = 256;
189
190 static int exit_on_error = 0;
191 static int using_stdin = 0;
192 static int verbose = 1;
193 static int thread_count= 1;
194 static int64_t video_size = 0;
195 static int64_t audio_size = 0;
196 static int64_t extra_size = 0;
197 static int nb_frames_dup = 0;
198 static int nb_frames_drop = 0;
199 static int input_sync;
200 static uint64_t limit_filesize = UINT64_MAX;
201 static int force_fps = 0;
202 static char *forced_key_frames = NULL;
203
204 static float dts_delta_threshold = 10;
205
206 static uint8_t *audio_buf;
207 static uint8_t *audio_out;
208 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
209
210 static short *samples;
211
212 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
213 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
214 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
215
216 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
217
218 typedef struct InputStream {
219 int file_index;
220 AVStream *st;
221 int discard; /* true if stream data should be discarded */
222 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
223 AVCodec *dec;
224
225 int64_t start; /* time when read started */
226 int64_t next_pts; /* synthetic pts for cases where pkt.pts
227 is not defined */
228 int64_t pts; /* current pts */
229 PtsCorrectionContext pts_ctx;
230 double ts_scale;
231 int is_start; /* is 1 at the start and after a discontinuity */
232 int showed_multi_packet_warning;
233 AVDictionary *opts;
234 } InputStream;
235
236 typedef struct InputFile {
237 AVFormatContext *ctx;
238 int eof_reached; /* true if eof reached */
239 int ist_index; /* index of first stream in ist_table */
240 int buffer_size; /* current total buffer size */
241 int64_t ts_offset;
242 int nb_streams; /* number of stream that avconv is aware of; may be different
243 from ctx.nb_streams if new streams appear during av_read_frame() */
244 } InputFile;
245
246 typedef struct OutputStream {
247 int file_index; /* file index */
248 int index; /* stream index in the output file */
249 int source_index; /* InputStream index */
250 AVStream *st; /* stream in the output file */
251 int encoding_needed; /* true if encoding needed for this stream */
252 int frame_number;
253 /* input pts and corresponding output pts
254 for A/V sync */
255 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
256 struct InputStream *sync_ist; /* input stream to sync against */
257 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
258 AVBitStreamFilterContext *bitstream_filters;
259 AVCodec *enc;
260
261 /* video only */
262 int video_resample;
263 AVFrame pict_tmp; /* temporary image for resampling */
264 struct SwsContext *img_resample_ctx; /* for image resampling */
265 int resample_height;
266 int resample_width;
267 int resample_pix_fmt;
268 AVRational frame_rate;
269
270 float frame_aspect_ratio;
271
272 /* forced key frames */
273 int64_t *forced_kf_pts;
274 int forced_kf_count;
275 int forced_kf_index;
276
277 /* audio only */
278 int audio_resample;
279 ReSampleContext *resample; /* for audio resampling */
280 int resample_sample_fmt;
281 int resample_channels;
282 int resample_sample_rate;
283 int reformat_pair;
284 AVAudioConvert *reformat_ctx;
285 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
286 FILE *logfile;
287
288 #if CONFIG_AVFILTER
289 AVFilterContext *output_video_filter;
290 AVFilterContext *input_video_filter;
291 AVFilterBufferRef *picref;
292 char *avfilter;
293 AVFilterGraph *graph;
294 #endif
295
296 int sws_flags;
297 AVDictionary *opts;
298 int is_past_recording_time;
299 } OutputStream;
300
301
302 typedef struct OutputFile {
303 AVFormatContext *ctx;
304 AVDictionary *opts;
305 int ost_index; /* index of the first stream in output_streams */
306 int64_t recording_time; /* desired length of the resulting file in microseconds */
307 int64_t start_time; /* start time in microseconds */
308 uint64_t limit_filesize;
309 } OutputFile;
310
311 static InputStream *input_streams = NULL;
312 static int nb_input_streams = 0;
313 static InputFile *input_files = NULL;
314 static int nb_input_files = 0;
315
316 static OutputStream *output_streams = NULL;
317 static int nb_output_streams = 0;
318 static OutputFile *output_files = NULL;
319 static int nb_output_files = 0;
320
321 #if CONFIG_AVFILTER
322
323 static int configure_video_filters(InputStream *ist, OutputStream *ost)
324 {
325 AVFilterContext *last_filter, *filter;
326 /** filter graph containing all filters including input & output */
327 AVCodecContext *codec = ost->st->codec;
328 AVCodecContext *icodec = ist->st->codec;
329 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
330 AVRational sample_aspect_ratio;
331 char args[255];
332 int ret;
333
334 ost->graph = avfilter_graph_alloc();
335
336 if (ist->st->sample_aspect_ratio.num){
337 sample_aspect_ratio = ist->st->sample_aspect_ratio;
338 }else
339 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
340
341 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
342 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
343 sample_aspect_ratio.num, sample_aspect_ratio.den);
344
345 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
346 "src", args, NULL, ost->graph);
347 if (ret < 0)
348 return ret;
349 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
350 "out", NULL, &ffsink_ctx, ost->graph);
351 if (ret < 0)
352 return ret;
353 last_filter = ost->input_video_filter;
354
355 if (codec->width != icodec->width || codec->height != icodec->height) {
356 snprintf(args, 255, "%d:%d:flags=0x%X",
357 codec->width,
358 codec->height,
359 ost->sws_flags);
360 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
361 NULL, args, NULL, ost->graph)) < 0)
362 return ret;
363 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
364 return ret;
365 last_filter = filter;
366 }
367
368 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
369 ost->graph->scale_sws_opts = av_strdup(args);
370
371 if (ost->avfilter) {
372 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
373 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
374
375 outputs->name = av_strdup("in");
376 outputs->filter_ctx = last_filter;
377 outputs->pad_idx = 0;
378 outputs->next = NULL;
379
380 inputs->name = av_strdup("out");
381 inputs->filter_ctx = ost->output_video_filter;
382 inputs->pad_idx = 0;
383 inputs->next = NULL;
384
385 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
386 return ret;
387 av_freep(&ost->avfilter);
388 } else {
389 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
390 return ret;
391 }
392
393 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
394 return ret;
395
396 codec->width = ost->output_video_filter->inputs[0]->w;
397 codec->height = ost->output_video_filter->inputs[0]->h;
398 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
399 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
400 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
401 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
402
403 return 0;
404 }
405 #endif /* CONFIG_AVFILTER */
406
407 static void term_exit(void)
408 {
409 av_log(NULL, AV_LOG_QUIET, "");
410 }
411
412 static volatile int received_sigterm = 0;
413 static volatile int received_nb_signals = 0;
414
415 static void
416 sigterm_handler(int sig)
417 {
418 received_sigterm = sig;
419 received_nb_signals++;
420 term_exit();
421 }
422
423 static void term_init(void)
424 {
425 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
426 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
427 #ifdef SIGXCPU
428 signal(SIGXCPU, sigterm_handler);
429 #endif
430 }
431
432 static int decode_interrupt_cb(void)
433 {
434 return received_nb_signals > 1;
435 }
436
437 static int exit_program(int ret)
438 {
439 int i;
440
441 /* close files */
442 for(i=0;i<nb_output_files;i++) {
443 AVFormatContext *s = output_files[i].ctx;
444 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
445 avio_close(s->pb);
446 avformat_free_context(s);
447 av_dict_free(&output_files[i].opts);
448 }
449 for(i=0;i<nb_input_files;i++) {
450 av_close_input_file(input_files[i].ctx);
451 }
452 for (i = 0; i < nb_input_streams; i++)
453 av_dict_free(&input_streams[i].opts);
454
455 av_free(intra_matrix);
456 av_free(inter_matrix);
457
458 if (vstats_file)
459 fclose(vstats_file);
460 av_free(vstats_filename);
461
462 av_free(meta_data_maps);
463
464 av_freep(&input_streams);
465 av_freep(&input_files);
466 av_freep(&output_streams);
467 av_freep(&output_files);
468
469 uninit_opts();
470 av_free(audio_buf);
471 av_free(audio_out);
472 allocated_audio_buf_size= allocated_audio_out_size= 0;
473 av_free(samples);
474
475 #if CONFIG_AVFILTER
476 avfilter_uninit();
477 #endif
478
479 if (received_sigterm) {
480 fprintf(stderr,
481 "Received signal %d: terminating.\n",
482 (int) received_sigterm);
483 exit (255);
484 }
485
486 exit(ret); /* not all OS-es handle main() return value */
487 return ret;
488 }
489
490 static void assert_avoptions(AVDictionary *m)
491 {
492 AVDictionaryEntry *t;
493 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
494 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
495 exit_program(1);
496 }
497 }
498
499 static void assert_codec_experimental(AVCodecContext *c, int encoder)
500 {
501 const char *codec_string = encoder ? "encoder" : "decoder";
502 AVCodec *codec;
503 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
504 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
505 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
506 "results.\nAdd '-strict experimental' if you want to use it.\n",
507 codec_string, c->codec->name);
508 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
509 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
510 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
511 codec_string, codec->name);
512 exit_program(1);
513 }
514 }
515
516 /* similar to ff_dynarray_add() and av_fast_realloc() */
517 static void *grow_array(void *array, int elem_size, int *size, int new_size)
518 {
519 if (new_size >= INT_MAX / elem_size) {
520 fprintf(stderr, "Array too big.\n");
521 exit_program(1);
522 }
523 if (*size < new_size) {
524 uint8_t *tmp = av_realloc(array, new_size*elem_size);
525 if (!tmp) {
526 fprintf(stderr, "Could not alloc buffer.\n");
527 exit_program(1);
528 }
529 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
530 *size = new_size;
531 return tmp;
532 }
533 return array;
534 }
535
536 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
537 {
538 if(codec && codec->sample_fmts){
539 const enum AVSampleFormat *p= codec->sample_fmts;
540 for(; *p!=-1; p++){
541 if(*p == st->codec->sample_fmt)
542 break;
543 }
544 if (*p == -1) {
545 av_log(NULL, AV_LOG_WARNING,
546 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
547 av_get_sample_fmt_name(st->codec->sample_fmt),
548 codec->name,
549 av_get_sample_fmt_name(codec->sample_fmts[0]));
550 st->codec->sample_fmt = codec->sample_fmts[0];
551 }
552 }
553 }
554
555 /**
556 * Update the requested input sample format based on the output sample format.
557 * This is currently only used to request float output from decoders which
558 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
559 * Ideally this will be removed in the future when decoders do not do format
560 * conversion and only output in their native format.
561 */
562 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
563 AVCodecContext *enc)
564 {
565 /* if sample formats match or a decoder sample format has already been
566 requested, just return */
567 if (enc->sample_fmt == dec->sample_fmt ||
568 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
569 return;
570
571 /* if decoder supports more than one output format */
572 if (dec_codec && dec_codec->sample_fmts &&
573 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
574 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
575 const enum AVSampleFormat *p;
576 int min_dec = -1, min_inc = -1;
577
578 /* find a matching sample format in the encoder */
579 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
580 if (*p == enc->sample_fmt) {
581 dec->request_sample_fmt = *p;
582 return;
583 } else if (*p > enc->sample_fmt) {
584 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
585 } else
586 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
587 }
588
589 /* if none match, provide the one that matches quality closest */
590 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
591 enc->sample_fmt - min_dec;
592 }
593 }
594
595 static void choose_sample_rate(AVStream *st, AVCodec *codec)
596 {
597 if(codec && codec->supported_samplerates){
598 const int *p= codec->supported_samplerates;
599 int best=0;
600 int best_dist=INT_MAX;
601 for(; *p; p++){
602 int dist= abs(st->codec->sample_rate - *p);
603 if(dist < best_dist){
604 best_dist= dist;
605 best= *p;
606 }
607 }
608 if(best_dist){
609 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
610 }
611 st->codec->sample_rate= best;
612 }
613 }
614
615 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
616 {
617 if(codec && codec->pix_fmts){
618 const enum PixelFormat *p= codec->pix_fmts;
619 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
620 if(st->codec->codec_id==CODEC_ID_MJPEG){
621 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
622 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
623 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};
624 }
625 }
626 for(; *p!=-1; p++){
627 if(*p == st->codec->pix_fmt)
628 break;
629 }
630 if (*p == -1) {
631 if(st->codec->pix_fmt != PIX_FMT_NONE)
632 av_log(NULL, AV_LOG_WARNING,
633 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
634 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
635 codec->name,
636 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
637 st->codec->pix_fmt = codec->pix_fmts[0];
638 }
639 }
640 }
641
642 static double
643 get_sync_ipts(const OutputStream *ost)
644 {
645 const InputStream *ist = ost->sync_ist;
646 OutputFile *of = &output_files[ost->file_index];
647 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
648 }
649
650 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
651 int ret;
652
653 while(bsfc){
654 AVPacket new_pkt= *pkt;
655 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
656 &new_pkt.data, &new_pkt.size,
657 pkt->data, pkt->size,
658 pkt->flags & AV_PKT_FLAG_KEY);
659 if(a>0){
660 av_free_packet(pkt);
661 new_pkt.destruct= av_destruct_packet;
662 } else if(a<0){
663 fprintf(stderr, "%s failed for stream %d, codec %s",
664 bsfc->filter->name, pkt->stream_index,
665 avctx->codec ? avctx->codec->name : "copy");
666 print_error("", a);
667 if (exit_on_error)
668 exit_program(1);
669 }
670 *pkt= new_pkt;
671
672 bsfc= bsfc->next;
673 }
674
675 ret= av_interleaved_write_frame(s, pkt);
676 if(ret < 0){
677 print_error("av_interleaved_write_frame()", ret);
678 exit_program(1);
679 }
680 }
681
682 static void do_audio_out(AVFormatContext *s,
683 OutputStream *ost,
684 InputStream *ist,
685 unsigned char *buf, int size)
686 {
687 uint8_t *buftmp;
688 int64_t audio_out_size, audio_buf_size;
689 int64_t allocated_for_size= size;
690
691 int size_out, frame_bytes, ret, resample_changed;
692 AVCodecContext *enc= ost->st->codec;
693 AVCodecContext *dec= ist->st->codec;
694 int osize = av_get_bytes_per_sample(enc->sample_fmt);
695 int isize = av_get_bytes_per_sample(dec->sample_fmt);
696 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
697
698 need_realloc:
699 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
700 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
701 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
702 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
703 audio_buf_size*= osize*enc->channels;
704
705 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
706 if(coded_bps > 8*osize)
707 audio_out_size= audio_out_size * coded_bps / (8*osize);
708 audio_out_size += FF_MIN_BUFFER_SIZE;
709
710 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
711 fprintf(stderr, "Buffer sizes too large\n");
712 exit_program(1);
713 }
714
715 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
716 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
717 if (!audio_buf || !audio_out){
718 fprintf(stderr, "Out of memory in do_audio_out\n");
719 exit_program(1);
720 }
721
722 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
723 ost->audio_resample = 1;
724
725 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
726 ost->resample_channels != dec->channels ||
727 ost->resample_sample_rate != dec->sample_rate;
728
729 if ((ost->audio_resample && !ost->resample) || resample_changed) {
730 if (resample_changed) {
731 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",
732 ist->file_index, ist->st->index,
733 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
734 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
735 ost->resample_sample_fmt = dec->sample_fmt;
736 ost->resample_channels = dec->channels;
737 ost->resample_sample_rate = dec->sample_rate;
738 if (ost->resample)
739 audio_resample_close(ost->resample);
740 }
741 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
742 if (audio_sync_method <= 1 &&
743 ost->resample_sample_fmt == enc->sample_fmt &&
744 ost->resample_channels == enc->channels &&
745 ost->resample_sample_rate == enc->sample_rate) {
746 ost->resample = NULL;
747 ost->audio_resample = 0;
748 } else if (ost->audio_resample) {
749 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
750 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
751 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
752 enc->sample_rate, dec->sample_rate,
753 enc->sample_fmt, dec->sample_fmt,
754 16, 10, 0, 0.8);
755 if (!ost->resample) {
756 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
757 dec->channels, dec->sample_rate,
758 enc->channels, enc->sample_rate);
759 exit_program(1);
760 }
761 }
762 }
763
764 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
765 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
766 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
767 if (ost->reformat_ctx)
768 av_audio_convert_free(ost->reformat_ctx);
769 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
770 dec->sample_fmt, 1, NULL, 0);
771 if (!ost->reformat_ctx) {
772 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
773 av_get_sample_fmt_name(dec->sample_fmt),
774 av_get_sample_fmt_name(enc->sample_fmt));
775 exit_program(1);
776 }
777 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
778 }
779
780 if(audio_sync_method){
781 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
782 - av_fifo_size(ost->fifo)/(enc->channels * 2);
783 double idelta= delta*dec->sample_rate / enc->sample_rate;
784 int byte_delta= ((int)idelta)*2*dec->channels;
785
786 //FIXME resample delay
787 if(fabs(delta) > 50){
788 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
789 if(byte_delta < 0){
790 byte_delta= FFMAX(byte_delta, -size);
791 size += byte_delta;
792 buf -= byte_delta;
793 if(verbose > 2)
794 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
795 if(!size)
796 return;
797 ist->is_start=0;
798 }else{
799 static uint8_t *input_tmp= NULL;
800 input_tmp= av_realloc(input_tmp, byte_delta + size);
801
802 if(byte_delta > allocated_for_size - size){
803 allocated_for_size= byte_delta + (int64_t)size;
804 goto need_realloc;
805 }
806 ist->is_start=0;
807
808 memset(input_tmp, 0, byte_delta);
809 memcpy(input_tmp + byte_delta, buf, size);
810 buf= input_tmp;
811 size += byte_delta;
812 if(verbose > 2)
813 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
814 }
815 }else if(audio_sync_method>1){
816 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
817 av_assert0(ost->audio_resample);
818 if(verbose > 2)
819 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
820 // 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));
821 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
822 }
823 }
824 }else
825 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
826 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
827
828 if (ost->audio_resample) {
829 buftmp = audio_buf;
830 size_out = audio_resample(ost->resample,
831 (short *)buftmp, (short *)buf,
832 size / (dec->channels * isize));
833 size_out = size_out * enc->channels * osize;
834 } else {
835 buftmp = buf;
836 size_out = size;
837 }
838
839 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
840 const void *ibuf[6]= {buftmp};
841 void *obuf[6]= {audio_buf};
842 int istride[6]= {isize};
843 int ostride[6]= {osize};
844 int len= size_out/istride[0];
845 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
846 printf("av_audio_convert() failed\n");
847 if (exit_on_error)
848 exit_program(1);
849 return;
850 }
851 buftmp = audio_buf;
852 size_out = len*osize;
853 }
854
855 /* now encode as many frames as possible */
856 if (enc->frame_size > 1) {
857 /* output resampled raw samples */
858 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
859 fprintf(stderr, "av_fifo_realloc2() failed\n");
860 exit_program(1);
861 }
862 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
863
864 frame_bytes = enc->frame_size * osize * enc->channels;
865
866 while (av_fifo_size(ost->fifo) >= frame_bytes) {
867 AVPacket pkt;
868 av_init_packet(&pkt);
869
870 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
871
872 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
873
874 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
875 (short *)audio_buf);
876 if (ret < 0) {
877 fprintf(stderr, "Audio encoding failed\n");
878 exit_program(1);
879 }
880 audio_size += ret;
881 pkt.stream_index= ost->index;
882 pkt.data= audio_out;
883 pkt.size= ret;
884 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
885 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
886 pkt.flags |= AV_PKT_FLAG_KEY;
887 write_frame(s, &pkt, enc, ost->bitstream_filters);
888
889 ost->sync_opts += enc->frame_size;
890 }
891 } else {
892 AVPacket pkt;
893 av_init_packet(&pkt);
894
895 ost->sync_opts += size_out / (osize * enc->channels);
896
897 /* output a pcm frame */
898 /* determine the size of the coded buffer */
899 size_out /= osize;
900 if (coded_bps)
901 size_out = size_out*coded_bps/8;
902
903 if(size_out > audio_out_size){
904 fprintf(stderr, "Internal error, buffer size too small\n");
905 exit_program(1);
906 }
907
908 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
909 ret = avcodec_encode_audio(enc, audio_out, size_out,
910 (short *)buftmp);
911 if (ret < 0) {
912 fprintf(stderr, "Audio encoding failed\n");
913 exit_program(1);
914 }
915 audio_size += ret;
916 pkt.stream_index= ost->index;
917 pkt.data= audio_out;
918 pkt.size= ret;
919 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
920 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
921 pkt.flags |= AV_PKT_FLAG_KEY;
922 write_frame(s, &pkt, enc, ost->bitstream_filters);
923 }
924 }
925
926 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
927 {
928 AVCodecContext *dec;
929 AVPicture *picture2;
930 AVPicture picture_tmp;
931 uint8_t *buf = 0;
932
933 dec = ist->st->codec;
934
935 /* deinterlace : must be done before any resize */
936 if (do_deinterlace) {
937 int size;
938
939 /* create temporary picture */
940 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
941 buf = av_malloc(size);
942 if (!buf)
943 return;
944
945 picture2 = &picture_tmp;
946 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
947
948 if(avpicture_deinterlace(picture2, picture,
949 dec->pix_fmt, dec->width, dec->height) < 0) {
950 /* if error, do not deinterlace */
951 fprintf(stderr, "Deinterlacing failed\n");
952 av_free(buf);
953 buf = NULL;
954 picture2 = picture;
955 }
956 } else {
957 picture2 = picture;
958 }
959
960 if (picture != picture2)
961 *picture = *picture2;
962 *bufp = buf;
963 }
964
965 static void do_subtitle_out(AVFormatContext *s,
966 OutputStream *ost,
967 InputStream *ist,
968 AVSubtitle *sub,
969 int64_t pts)
970 {
971 static uint8_t *subtitle_out = NULL;
972 int subtitle_out_max_size = 1024 * 1024;
973 int subtitle_out_size, nb, i;
974 AVCodecContext *enc;
975 AVPacket pkt;
976
977 if (pts == AV_NOPTS_VALUE) {
978 fprintf(stderr, "Subtitle packets must have a pts\n");
979 if (exit_on_error)
980 exit_program(1);
981 return;
982 }
983
984 enc = ost->st->codec;
985
986 if (!subtitle_out) {
987 subtitle_out = av_malloc(subtitle_out_max_size);
988 }
989
990 /* Note: DVB subtitle need one packet to draw them and one other
991 packet to clear them */
992 /* XXX: signal it in the codec context ? */
993 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
994 nb = 2;
995 else
996 nb = 1;
997
998 for(i = 0; i < nb; i++) {
999 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1000 // start_display_time is required to be 0
1001 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1002 sub->end_display_time -= sub->start_display_time;
1003 sub->start_display_time = 0;
1004 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1005 subtitle_out_max_size, sub);
1006 if (subtitle_out_size < 0) {
1007 fprintf(stderr, "Subtitle encoding failed\n");
1008 exit_program(1);
1009 }
1010
1011 av_init_packet(&pkt);
1012 pkt.stream_index = ost->index;
1013 pkt.data = subtitle_out;
1014 pkt.size = subtitle_out_size;
1015 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1016 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1017 /* XXX: the pts correction is handled here. Maybe handling
1018 it in the codec would be better */
1019 if (i == 0)
1020 pkt.pts += 90 * sub->start_display_time;
1021 else
1022 pkt.pts += 90 * sub->end_display_time;
1023 }
1024 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1025 }
1026 }
1027
1028 static int bit_buffer_size= 1024*256;
1029 static uint8_t *bit_buffer= NULL;
1030
1031 static void do_video_resample(OutputStream *ost,
1032 InputStream *ist,
1033 AVFrame *in_picture,
1034 AVFrame **out_picture)
1035 {
1036 int resample_changed = 0;
1037 AVCodecContext *dec = ist->st->codec;
1038 *out_picture = in_picture;
1039
1040 resample_changed = ost->resample_width != dec->width ||
1041 ost->resample_height != dec->height ||
1042 ost->resample_pix_fmt != dec->pix_fmt;
1043
1044 if (resample_changed) {
1045 av_log(NULL, AV_LOG_INFO,
1046 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1047 ist->file_index, ist->st->index,
1048 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1049 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1050 if(!ost->video_resample)
1051 ost->video_resample = 1;
1052 }
1053
1054 #if !CONFIG_AVFILTER
1055 if (ost->video_resample) {
1056 *out_picture = &ost->pict_tmp;
1057 if (resample_changed) {
1058 /* initialize a new scaler context */
1059 sws_freeContext(ost->img_resample_ctx);
1060 ost->img_resample_ctx = sws_getContext(
1061 ist->st->codec->width,
1062 ist->st->codec->height,
1063 ist->st->codec->pix_fmt,
1064 ost->st->codec->width,
1065 ost->st->codec->height,
1066 ost->st->codec->pix_fmt,
1067 ost->sws_flags, NULL, NULL, NULL);
1068 if (ost->img_resample_ctx == NULL) {
1069 fprintf(stderr, "Cannot get resampling context\n");
1070 exit_program(1);
1071 }
1072 }
1073 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1074 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1075 }
1076 #else
1077 if (resample_changed) {
1078 avfilter_graph_free(&ost->graph);
1079 if (configure_video_filters(ist, ost)) {
1080 fprintf(stderr, "Error reinitializing filters!\n");
1081 exit_program(1);
1082 }
1083 }
1084 #endif
1085 if (resample_changed) {
1086 ost->resample_width = dec->width;
1087 ost->resample_height = dec->height;
1088 ost->resample_pix_fmt = dec->pix_fmt;
1089 }
1090 }
1091
1092
1093 static void do_video_out(AVFormatContext *s,
1094 OutputStream *ost,
1095 InputStream *ist,
1096 AVFrame *in_picture,
1097 int *frame_size, float quality)
1098 {
1099 int nb_frames, i, ret, format_video_sync;
1100 AVFrame *final_picture;
1101 AVCodecContext *enc, *dec;
1102 double sync_ipts;
1103
1104 enc = ost->st->codec;
1105 dec = ist->st->codec;
1106
1107 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1108
1109 /* by default, we output a single frame */
1110 nb_frames = 1;
1111
1112 *frame_size = 0;
1113
1114 format_video_sync = video_sync_method;
1115 if (format_video_sync < 0)
1116 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1117
1118 if (format_video_sync) {
1119 double vdelta = sync_ipts - ost->sync_opts;
1120 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1121 if (vdelta < -1.1)
1122 nb_frames = 0;
1123 else if (format_video_sync == 2) {
1124 if(vdelta<=-0.6){
1125 nb_frames=0;
1126 }else if(vdelta>0.6)
1127 ost->sync_opts= lrintf(sync_ipts);
1128 }else if (vdelta > 1.1)
1129 nb_frames = lrintf(vdelta);
1130 //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);
1131 if (nb_frames == 0){
1132 ++nb_frames_drop;
1133 if (verbose>2)
1134 fprintf(stderr, "*** drop!\n");
1135 }else if (nb_frames > 1) {
1136 nb_frames_dup += nb_frames - 1;
1137 if (verbose>2)
1138 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1139 }
1140 }else
1141 ost->sync_opts= lrintf(sync_ipts);
1142
1143 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1144 if (nb_frames <= 0)
1145 return;
1146
1147 do_video_resample(ost, ist, in_picture, &final_picture);
1148
1149 /* duplicates frame if needed */
1150 for(i=0;i<nb_frames;i++) {
1151 AVPacket pkt;
1152 av_init_packet(&pkt);
1153 pkt.stream_index= ost->index;
1154
1155 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1156 /* raw pictures are written as AVPicture structure to
1157 avoid any copies. We support temporarily the older
1158 method. */
1159 AVFrame* old_frame = enc->coded_frame;
1160 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1161 pkt.data= (uint8_t *)final_picture;
1162 pkt.size= sizeof(AVPicture);
1163 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1164 pkt.flags |= AV_PKT_FLAG_KEY;
1165
1166 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1167 enc->coded_frame = old_frame;
1168 } else {
1169 AVFrame big_picture;
1170
1171 big_picture= *final_picture;
1172 /* better than nothing: use input picture interlaced
1173 settings */
1174 big_picture.interlaced_frame = in_picture->interlaced_frame;
1175 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1176 if(top_field_first == -1)
1177 big_picture.top_field_first = in_picture->top_field_first;
1178 else
1179 big_picture.top_field_first = top_field_first;
1180 }
1181
1182 /* handles same_quant here. This is not correct because it may
1183 not be a global option */
1184 big_picture.quality = quality;
1185 if(!me_threshold)
1186 big_picture.pict_type = 0;
1187 // big_picture.pts = AV_NOPTS_VALUE;
1188 big_picture.pts= ost->sync_opts;
1189 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1190 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1191 if (ost->forced_kf_index < ost->forced_kf_count &&
1192 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1193 big_picture.pict_type = AV_PICTURE_TYPE_I;
1194 ost->forced_kf_index++;
1195 }
1196 ret = avcodec_encode_video(enc,
1197 bit_buffer, bit_buffer_size,
1198 &big_picture);
1199 if (ret < 0) {
1200 fprintf(stderr, "Video encoding failed\n");
1201 exit_program(1);
1202 }
1203
1204 if(ret>0){
1205 pkt.data= bit_buffer;
1206 pkt.size= ret;
1207 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1208 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1209 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1210 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1211 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1212
1213 if(enc->coded_frame->key_frame)
1214 pkt.flags |= AV_PKT_FLAG_KEY;
1215 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1216 *frame_size = ret;
1217 video_size += ret;
1218 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1219 // enc->frame_number-1, ret, enc->pict_type);
1220 /* if two pass, output log */
1221 if (ost->logfile && enc->stats_out) {
1222 fprintf(ost->logfile, "%s", enc->stats_out);
1223 }
1224 }
1225 }
1226 ost->sync_opts++;
1227 ost->frame_number++;
1228 }
1229 }
1230
1231 static double psnr(double d){
1232 return -10.0*log(d)/log(10.0);
1233 }
1234
1235 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1236 int frame_size)
1237 {
1238 AVCodecContext *enc;
1239 int frame_number;
1240 double ti1, bitrate, avg_bitrate;
1241
1242 /* this is executed just the first time do_video_stats is called */
1243 if (!vstats_file) {
1244 vstats_file = fopen(vstats_filename, "w");
1245 if (!vstats_file) {
1246 perror("fopen");
1247 exit_program(1);
1248 }
1249 }
1250
1251 enc = ost->st->codec;
1252 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1253 frame_number = ost->frame_number;
1254 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1255 if (enc->flags&CODEC_FLAG_PSNR)
1256 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1257
1258 fprintf(vstats_file,"f_size= %6d ", frame_size);
1259 /* compute pts value */
1260 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1261 if (ti1 < 0.01)
1262 ti1 = 0.01;
1263
1264 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1265 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1266 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1267 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1268 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1269 }
1270 }
1271
1272 static void print_report(OutputFile *output_files,
1273 OutputStream *ost_table, int nb_ostreams,
1274 int is_last_report, int64_t timer_start)
1275 {
1276 char buf[1024];
1277 OutputStream *ost;
1278 AVFormatContext *oc;
1279 int64_t total_size;
1280 AVCodecContext *enc;
1281 int frame_number, vid, i;
1282 double bitrate, ti1, pts;
1283 static int64_t last_time = -1;
1284 static int qp_histogram[52];
1285
1286 if (!is_last_report) {
1287 int64_t cur_time;
1288 /* display the report every 0.5 seconds */
1289 cur_time = av_gettime();
1290 if (last_time == -1) {
1291 last_time = cur_time;
1292 return;
1293 }
1294 if ((cur_time - last_time) < 500000)
1295 return;
1296 last_time = cur_time;
1297 }
1298
1299
1300 oc = output_files[0].ctx;
1301
1302 total_size = avio_size(oc->pb);
1303 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1304 total_size= avio_tell(oc->pb);
1305
1306 buf[0] = '\0';
1307 ti1 = 1e10;
1308 vid = 0;
1309 for(i=0;i<nb_ostreams;i++) {
1310 float q = -1;
1311 ost = &ost_table[i];
1312 enc = ost->st->codec;
1313 if (!ost->st->stream_copy && enc->coded_frame)
1314 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1315 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1317 }
1318 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1319 float t = (av_gettime()-timer_start) / 1000000.0;
1320
1321 frame_number = ost->frame_number;
1322 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1323 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1324 if(is_last_report)
1325 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1326 if(qp_hist){
1327 int j;
1328 int qp = lrintf(q);
1329 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1330 qp_histogram[qp]++;
1331 for(j=0; j<32; j++)
1332 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1333 }
1334 if (enc->flags&CODEC_FLAG_PSNR){
1335 int j;
1336 double error, error_sum=0;
1337 double scale, scale_sum=0;
1338 char type[3]= {'Y','U','V'};
1339 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1340 for(j=0; j<3; j++){
1341 if(is_last_report){
1342 error= enc->error[j];
1343 scale= enc->width*enc->height*255.0*255.0*frame_number;
1344 }else{
1345 error= enc->coded_frame->error[j];
1346 scale= enc->width*enc->height*255.0*255.0;
1347 }
1348 if(j) scale/=4;
1349 error_sum += error;
1350 scale_sum += scale;
1351 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1352 }
1353 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1354 }
1355 vid = 1;
1356 }
1357 /* compute min output value */
1358 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1359 if ((pts < ti1) && (pts > 0))
1360 ti1 = pts;
1361 }
1362 if (ti1 < 0.01)
1363 ti1 = 0.01;
1364
1365 if (verbose > 0 || is_last_report) {
1366 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1367
1368 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1369 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1370 (double)total_size / 1024, ti1, bitrate);
1371
1372 if (nb_frames_dup || nb_frames_drop)
1373 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1374 nb_frames_dup, nb_frames_drop);
1375
1376 if (verbose >= 0)
1377 fprintf(stderr, "%s \r", buf);
1378
1379 fflush(stderr);
1380 }
1381
1382 if (is_last_report && verbose >= 0){
1383 int64_t raw= audio_size + video_size + extra_size;
1384 fprintf(stderr, "\n");
1385 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1386 video_size/1024.0,
1387 audio_size/1024.0,
1388 extra_size/1024.0,
1389 100.0*(total_size - raw)/raw
1390 );
1391 }
1392 }
1393
1394 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1395 {
1396 int fill_char = 0x00;
1397 if (sample_fmt == AV_SAMPLE_FMT_U8)
1398 fill_char = 0x80;
1399 memset(buf, fill_char, size);
1400 }
1401
1402 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1403 {
1404 int i, ret;
1405
1406 for (i = 0; i < nb_ostreams; i++) {
1407 OutputStream *ost = &ost_table[i];
1408 AVCodecContext *enc = ost->st->codec;
1409 AVFormatContext *os = output_files[ost->file_index].ctx;
1410
1411 if (!ost->encoding_needed)
1412 continue;
1413
1414 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1415 continue;
1416 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1417 continue;
1418
1419 for(;;) {
1420 AVPacket pkt;
1421 int fifo_bytes;
1422 av_init_packet(&pkt);
1423 pkt.stream_index= ost->index;
1424
1425 switch (ost->st->codec->codec_type) {
1426 case AVMEDIA_TYPE_AUDIO:
1427 fifo_bytes = av_fifo_size(ost->fifo);
1428 ret = 0;
1429 /* encode any samples remaining in fifo */
1430 if (fifo_bytes > 0) {
1431 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1432 int fs_tmp = enc->frame_size;
1433
1434 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1435 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1436 enc->frame_size = fifo_bytes / (osize * enc->channels);
1437 } else { /* pad */
1438 int frame_bytes = enc->frame_size*osize*enc->channels;
1439 if (allocated_audio_buf_size < frame_bytes)
1440 exit_program(1);
1441 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1442 }
1443
1444 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1445 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1446 ost->st->time_base.num, enc->sample_rate);
1447 enc->frame_size = fs_tmp;
1448 }
1449 if (ret <= 0) {
1450 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1451 }
1452 if (ret < 0) {
1453 fprintf(stderr, "Audio encoding failed\n");
1454 exit_program(1);
1455 }
1456 audio_size += ret;
1457 pkt.flags |= AV_PKT_FLAG_KEY;
1458 break;
1459 case AVMEDIA_TYPE_VIDEO:
1460 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1461 if (ret < 0) {
1462 fprintf(stderr, "Video encoding failed\n");
1463 exit_program(1);
1464 }
1465 video_size += ret;
1466 if(enc->coded_frame && enc->coded_frame->key_frame)
1467 pkt.flags |= AV_PKT_FLAG_KEY;
1468 if (ost->logfile && enc->stats_out) {
1469 fprintf(ost->logfile, "%s", enc->stats_out);
1470 }
1471 break;
1472 default:
1473 ret=-1;
1474 }
1475
1476 if (ret <= 0)
1477 break;
1478 pkt.data = bit_buffer;
1479 pkt.size = ret;
1480 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1481 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1482 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1483 }
1484 }
1485 }
1486
1487 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1488 static int output_packet(InputStream *ist, int ist_index,
1489 OutputStream *ost_table, int nb_ostreams,
1490 const AVPacket *pkt)
1491 {
1492 AVFormatContext *os;
1493 OutputStream *ost;
1494 int ret, i;
1495 int got_output;
1496 AVFrame picture;
1497 void *buffer_to_free = NULL;
1498 static unsigned int samples_size= 0;
1499 AVSubtitle subtitle, *subtitle_to_free;
1500 int64_t pkt_pts = AV_NOPTS_VALUE;
1501 #if CONFIG_AVFILTER
1502 int frame_available;
1503 #endif
1504 float quality;
1505
1506 AVPacket avpkt;
1507 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1508
1509 if(ist->next_pts == AV_NOPTS_VALUE)
1510 ist->next_pts= ist->pts;
1511
1512 if (pkt == NULL) {
1513 /* EOF handling */
1514 av_init_packet(&avpkt);
1515 avpkt.data = NULL;
1516 avpkt.size = 0;
1517 goto handle_eof;
1518 } else {
1519 avpkt = *pkt;
1520 }
1521
1522 if(pkt->dts != AV_NOPTS_VALUE)
1523 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1524 if(pkt->pts != AV_NOPTS_VALUE)
1525 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1526
1527 //while we have more to decode or while the decoder did output something on EOF
1528 while (avpkt.size > 0 || (!pkt && got_output)) {
1529 uint8_t *data_buf, *decoded_data_buf;
1530 int data_size, decoded_data_size;
1531 handle_eof:
1532 ist->pts= ist->next_pts;
1533
1534 if(avpkt.size && avpkt.size != pkt->size &&
1535 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1536 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1537 ist->showed_multi_packet_warning=1;
1538 }
1539
1540 /* decode the packet if needed */
1541 decoded_data_buf = NULL; /* fail safe */
1542 decoded_data_size= 0;
1543 data_buf = avpkt.data;
1544 data_size = avpkt.size;
1545 subtitle_to_free = NULL;
1546 if (ist->decoding_needed) {
1547 switch(ist->st->codec->codec_type) {
1548 case AVMEDIA_TYPE_AUDIO:{
1549 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1550 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1551 av_free(samples);
1552 samples= av_malloc(samples_size);
1553 }
1554 decoded_data_size= samples_size;
1555 /* XXX: could avoid copy if PCM 16 bits with same
1556 endianness as CPU */
1557 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1558 &avpkt);
1559 if (ret < 0)
1560 return ret;
1561 avpkt.data += ret;
1562 avpkt.size -= ret;
1563 data_size = ret;
1564 got_output = decoded_data_size > 0;
1565 /* Some bug in mpeg audio decoder gives */
1566 /* decoded_data_size < 0, it seems they are overflows */
1567 if (!got_output) {
1568 /* no audio frame */
1569 continue;
1570 }
1571 decoded_data_buf = (uint8_t *)samples;
1572 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1573 (ist->st->codec->sample_rate * ist->st->codec->channels);
1574 break;}
1575 case AVMEDIA_TYPE_VIDEO:
1576 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1577 /* XXX: allocate picture correctly */
1578 avcodec_get_frame_defaults(&picture);
1579 avpkt.pts = pkt_pts;
1580 avpkt.dts = ist->pts;
1581 pkt_pts = AV_NOPTS_VALUE;
1582
1583 ret = avcodec_decode_video2(ist->st->codec,
1584 &picture, &got_output, &avpkt);
1585 quality = same_quant ? picture.quality : 0;
1586 if (ret < 0)
1587 return ret;
1588 if (!got_output) {
1589 /* no picture yet */
1590 goto discard_packet;
1591 }
1592 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1593 if (ist->st->codec->time_base.num != 0) {
1594 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1595 ist->next_pts += ((int64_t)AV_TIME_BASE *
1596 ist->st->codec->time_base.num * ticks) /
1597 ist->st->codec->time_base.den;
1598 }
1599 avpkt.size = 0;
1600 buffer_to_free = NULL;
1601 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1602 break;
1603 case AVMEDIA_TYPE_SUBTITLE:
1604 ret = avcodec_decode_subtitle2(ist->st->codec,
1605 &subtitle, &got_output, &avpkt);
1606 if (ret < 0)
1607 return ret;
1608 if (!got_output) {
1609 goto discard_packet;
1610 }
1611 subtitle_to_free = &subtitle;
1612 avpkt.size = 0;
1613 break;
1614 default:
1615 return -1;
1616 }
1617 } else {
1618 switch(ist->st->codec->codec_type) {
1619 case AVMEDIA_TYPE_AUDIO:
1620 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1621 ist->st->codec->sample_rate;
1622 break;
1623 case AVMEDIA_TYPE_VIDEO:
1624 if (ist->st->codec->time_base.num != 0) {
1625 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1626 ist->next_pts += ((int64_t)AV_TIME_BASE *
1627 ist->st->codec->time_base.num * ticks) /
1628 ist->st->codec->time_base.den;
1629 }
1630 break;
1631 }
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 *volp++ = av_clip_int16(v);
1643 }
1644 }
1645 }
1646
1647 /* frame rate emulation */
1648 if (rate_emu) {
1649 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1650 int64_t now = av_gettime() - ist->start;
1651 if (pts > now)
1652 usleep(pts - now);
1653 }
1654 /* if output time reached then transcode raw format,
1655 encode packets and output them */
1656 for (i = 0; i < nb_ostreams; i++) {
1657 OutputFile *of = &output_files[ost_table[i].file_index];
1658 int frame_size;
1659
1660 ost = &ost_table[i];
1661 if (ost->source_index != ist_index)
1662 continue;
1663
1664 if (of->start_time && ist->pts < of->start_time)
1665 continue;
1666
1667 if (of->recording_time != INT64_MAX &&
1668 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1669 (AVRational){1, 1000000}) >= 0) {
1670 ost->is_past_recording_time = 1;
1671 continue;
1672 }
1673
1674 #if CONFIG_AVFILTER
1675 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1676 ost->input_video_filter) {
1677 AVRational sar;
1678 if (ist->st->sample_aspect_ratio.num)
1679 sar = ist->st->sample_aspect_ratio;
1680 else
1681 sar = ist->st->codec->sample_aspect_ratio;
1682 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1683 }
1684 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1685 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1686 while (frame_available) {
1687 AVRational ist_pts_tb;
1688 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1689 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1690 if (ost->picref)
1691 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1692 #endif
1693 os = output_files[ost->file_index].ctx;
1694
1695 /* set the input output pts pairs */
1696 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1697
1698 if (ost->encoding_needed) {
1699 av_assert0(ist->decoding_needed);
1700 switch(ost->st->codec->codec_type) {
1701 case AVMEDIA_TYPE_AUDIO:
1702 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1703 break;
1704 case AVMEDIA_TYPE_VIDEO:
1705 #if CONFIG_AVFILTER
1706 if (ost->picref->video && !ost->frame_aspect_ratio)
1707 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1708 #endif
1709 do_video_out(os, ost, ist, &picture, &frame_size,
1710 same_quant ? quality : ost->st->codec->global_quality);
1711 if (vstats_filename && frame_size)
1712 do_video_stats(os, ost, frame_size);
1713 break;
1714 case AVMEDIA_TYPE_SUBTITLE:
1715 do_subtitle_out(os, ost, ist, &subtitle,
1716 pkt->pts);
1717 break;
1718 default:
1719 abort();
1720 }
1721 } else {
1722 AVFrame avframe; //FIXME/XXX remove this
1723 AVPacket opkt;
1724 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1725
1726 av_init_packet(&opkt);
1727
1728 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1729 #if !CONFIG_AVFILTER
1730 continue;
1731 #else
1732 goto cont;
1733 #endif
1734
1735 /* no reencoding needed : output the packet directly */
1736 /* force the input stream PTS */
1737
1738 avcodec_get_frame_defaults(&avframe);
1739 ost->st->codec->coded_frame= &avframe;
1740 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1741
1742 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1743 audio_size += data_size;
1744 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1745 video_size += data_size;
1746 ost->sync_opts++;
1747 }
1748
1749 opkt.stream_index= ost->index;
1750 if(pkt->pts != AV_NOPTS_VALUE)
1751 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1752 else
1753 opkt.pts= AV_NOPTS_VALUE;
1754
1755 if (pkt->dts == AV_NOPTS_VALUE)
1756 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1757 else
1758 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1759 opkt.dts -= ost_tb_start_time;
1760
1761 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1762 opkt.flags= pkt->flags;
1763
1764 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1765 if( ost->st->codec->codec_id != CODEC_ID_H264
1766 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1767 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1768 ) {
1769 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1770 opkt.destruct= av_destruct_packet;
1771 } else {
1772 opkt.data = data_buf;
1773 opkt.size = data_size;
1774 }
1775
1776 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1777 ost->st->codec->frame_number++;
1778 ost->frame_number++;
1779 av_free_packet(&opkt);
1780 }
1781 #if CONFIG_AVFILTER
1782 cont:
1783 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1784 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1785 if (ost->picref)
1786 avfilter_unref_buffer(ost->picref);
1787 }
1788 #endif
1789 }
1790
1791 av_free(buffer_to_free);
1792 /* XXX: allocate the subtitles in the codec ? */
1793 if (subtitle_to_free) {
1794 avsubtitle_free(subtitle_to_free);
1795 subtitle_to_free = NULL;
1796 }
1797 }
1798 discard_packet:
1799
1800 return 0;
1801 }
1802
1803 static void print_sdp(OutputFile *output_files, int n)
1804 {
1805 char sdp[2048];
1806 int i;
1807 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1808
1809 if (!avc)
1810 exit_program(1);
1811 for (i = 0; i < n; i++)
1812 avc[i] = output_files[i].ctx;
1813
1814 av_sdp_create(avc, n, sdp, sizeof(sdp));
1815 printf("SDP:\n%s\n", sdp);
1816 fflush(stdout);
1817 av_freep(&avc);
1818 }
1819
1820 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1821 char *error, int error_len)
1822 {
1823 int i;
1824 InputStream *ist = &input_streams[ist_index];
1825 if (ist->decoding_needed) {
1826 AVCodec *codec = ist->dec;
1827 if (!codec) {
1828 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
1829 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1830 return AVERROR(EINVAL);
1831 }
1832
1833 /* update requested sample format for the decoder based on the
1834 corresponding encoder sample format */
1835 for (i = 0; i < nb_output_streams; i++) {
1836 OutputStream *ost = &output_streams[i];
1837 if (ost->source_index == ist_index) {
1838 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1839 break;
1840 }
1841 }
1842
1843 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1844 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
1845 ist->file_index, ist->st->index);
1846 return AVERROR(EINVAL);
1847 }
1848 assert_codec_experimental(ist->st->codec, 0);
1849 assert_avoptions(ist->opts);
1850 }
1851
1852 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;
1853 ist->next_pts = AV_NOPTS_VALUE;
1854 init_pts_correction(&ist->pts_ctx);
1855 ist->is_start = 1;
1856
1857 return 0;
1858 }
1859
1860 static int transcode_init(OutputFile *output_files,
1861 int nb_output_files,
1862 InputFile *input_files,
1863 int nb_input_files)
1864 {
1865 int ret = 0, i;
1866 AVFormatContext *os;
1867 AVCodecContext *codec, *icodec;
1868 OutputStream *ost;
1869 InputStream *ist;
1870 char error[1024];
1871 int want_sdp = 1;
1872
1873 if (rate_emu)
1874 for (i = 0; i < nb_input_streams; i++)
1875 input_streams[i].start = av_gettime();
1876
1877 /* output stream init */
1878 for(i=0;i<nb_output_files;i++) {
1879 os = output_files[i].ctx;
1880 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1881 av_dump_format(os, i, os->filename, 1);
1882 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1883 return AVERROR(EINVAL);
1884 }
1885 }
1886
1887 /* for each output stream, we compute the right encoding parameters */
1888 for (i = 0; i < nb_output_streams; i++) {
1889 ost = &output_streams[i];
1890 os = output_files[ost->file_index].ctx;
1891 ist = &input_streams[ost->source_index];
1892
1893 codec = ost->st->codec;
1894 icodec = ist->st->codec;
1895
1896 ost->st->disposition = ist->st->disposition;
1897 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1898 codec->chroma_sample_location = icodec->chroma_sample_location;
1899
1900 if (ost->st->stream_copy) {
1901 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1902
1903 if (extra_size > INT_MAX) {
1904 return AVERROR(EINVAL);
1905 }
1906
1907 /* if stream_copy is selected, no need to decode or encode */
1908 codec->codec_id = icodec->codec_id;
1909 codec->codec_type = icodec->codec_type;
1910
1911 if(!codec->codec_tag){
1912 if( !os->oformat->codec_tag
1913 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1914 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1915 codec->codec_tag = icodec->codec_tag;
1916 }
1917
1918 codec->bit_rate = icodec->bit_rate;
1919 codec->rc_max_rate = icodec->rc_max_rate;
1920 codec->rc_buffer_size = icodec->rc_buffer_size;
1921 codec->extradata= av_mallocz(extra_size);
1922 if (!codec->extradata) {
1923 return AVERROR(ENOMEM);
1924 }
1925 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1926 codec->extradata_size= icodec->extradata_size;
1927 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){
1928 codec->time_base = icodec->time_base;
1929 codec->time_base.num *= icodec->ticks_per_frame;
1930 av_reduce(&codec->time_base.num, &codec->time_base.den,
1931 codec->time_base.num, codec->time_base.den, INT_MAX);
1932 }else
1933 codec->time_base = ist->st->time_base;
1934 switch(codec->codec_type) {
1935 case AVMEDIA_TYPE_AUDIO:
1936 if(audio_volume != 256) {
1937 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1938 exit_program(1);
1939 }
1940 codec->channel_layout = icodec->channel_layout;
1941 codec->sample_rate = icodec->sample_rate;
1942 codec->channels = icodec->channels;
1943 codec->frame_size = icodec->frame_size;
1944 codec->audio_service_type = icodec->audio_service_type;
1945 codec->block_align= icodec->block_align;
1946 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1947 codec->block_align= 0;
1948 if(codec->codec_id == CODEC_ID_AC3)
1949 codec->block_align= 0;
1950 break;
1951 case AVMEDIA_TYPE_VIDEO:
1952 codec->pix_fmt = icodec->pix_fmt;
1953 codec->width = icodec->width;
1954 codec->height = icodec->height;
1955 codec->has_b_frames = icodec->has_b_frames;
1956 if (!codec->sample_aspect_ratio.num) {
1957 codec->sample_aspect_ratio =
1958 ost->st->sample_aspect_ratio =
1959 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1960 ist->st->codec->sample_aspect_ratio.num ?
1961 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1962 }
1963 break;
1964 case AVMEDIA_TYPE_SUBTITLE:
1965 codec->width = icodec->width;
1966 codec->height = icodec->height;
1967 break;
1968 case AVMEDIA_TYPE_DATA:
1969 break;
1970 default:
1971 abort();
1972 }
1973 } else {
1974 if (!ost->enc)
1975 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1976 switch(codec->codec_type) {
1977 case AVMEDIA_TYPE_AUDIO:
1978 ost->fifo= av_fifo_alloc(1024);
1979 if (!ost->fifo) {
1980 return AVERROR(ENOMEM);
1981 }
1982 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1983 if (!codec->sample_rate) {
1984 codec->sample_rate = icodec->sample_rate;
1985 if (icodec->lowres)
1986 codec->sample_rate >>= icodec->lowres;
1987 }
1988 choose_sample_rate(ost->st, ost->enc);
1989 codec->time_base = (AVRational){1, codec->sample_rate};
1990 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1991 codec->sample_fmt = icodec->sample_fmt;
1992 choose_sample_fmt(ost->st, ost->enc);
1993 if (!codec->channels)
1994 codec->channels = icodec->channels;
1995 codec->channel_layout = icodec->channel_layout;
1996 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1997 codec->channel_layout = 0;
1998 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1999 icodec->request_channels = codec->channels;
2000 ist->decoding_needed = 1;
2001 ost->encoding_needed = 1;
2002 ost->resample_sample_fmt = icodec->sample_fmt;
2003 ost->resample_sample_rate = icodec->sample_rate;
2004 ost->resample_channels = icodec->channels;
2005 break;
2006 case AVMEDIA_TYPE_VIDEO:
2007 if (codec->pix_fmt == PIX_FMT_NONE)
2008 codec->pix_fmt = icodec->pix_fmt;
2009 choose_pixel_fmt(ost->st, ost->enc);
2010
2011 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2012 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2013 exit_program(1);
2014 }
2015
2016 if (!codec->width || !codec->height) {
2017 codec->width = icodec->width;
2018 codec->height = icodec->height;
2019 }
2020
2021 ost->video_resample = codec->width != icodec->width ||
2022 codec->height != icodec->height ||
2023 codec->pix_fmt != icodec->pix_fmt;
2024 if (ost->video_resample) {
2025 #if !CONFIG_AVFILTER
2026 avcodec_get_frame_defaults(&ost->pict_tmp);
2027 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2028 codec->width, codec->height)) {
2029 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2030 exit_program(1);
2031 }
2032 ost->img_resample_ctx = sws_getContext(
2033 icodec->width,
2034 icodec->height,
2035 icodec->pix_fmt,
2036 codec->width,
2037 codec->height,
2038 codec->pix_fmt,
2039 ost->sws_flags, NULL, NULL, NULL);
2040 if (ost->img_resample_ctx == NULL) {
2041 fprintf(stderr, "Cannot get resampling context\n");
2042 exit_program(1);
2043 }
2044 #endif
2045 codec->bits_per_raw_sample= 0;
2046 }
2047
2048 ost->resample_height = icodec->height;
2049 ost->resample_width = icodec->width;
2050 ost->resample_pix_fmt= icodec->pix_fmt;
2051 ost->encoding_needed = 1;
2052 ist->decoding_needed = 1;
2053
2054 if (!ost->frame_rate.num)
2055 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2056 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2057 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2058 ost->frame_rate = ost->enc->supported_framerates[idx];
2059 }
2060 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2061
2062 #if CONFIG_AVFILTER
2063 if (configure_video_filters(ist, ost)) {
2064 fprintf(stderr, "Error opening filters!\n");
2065 exit(1);
2066 }
2067 #endif
2068 break;
2069 case AVMEDIA_TYPE_SUBTITLE:
2070 ost->encoding_needed = 1;
2071 ist->decoding_needed = 1;
2072 break;
2073 default:
2074 abort();
2075 break;
2076 }
2077 /* two pass mode */
2078 if (ost->encoding_needed &&
2079 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2080 char logfilename[1024];
2081 FILE *f;
2082
2083 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2084 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2085 i);
2086 if (codec->flags & CODEC_FLAG_PASS1) {
2087 f = fopen(logfilename, "wb");
2088 if (!f) {
2089 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2090 exit_program(1);
2091 }
2092 ost->logfile = f;
2093 } else {
2094 char *logbuffer;
2095 size_t logbuffer_size;
2096 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2097 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2098 exit_program(1);
2099 }
2100 codec->stats_in = logbuffer;
2101 }
2102 }
2103 }
2104 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2105 int size= codec->width * codec->height;
2106 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2107 }
2108 }
2109
2110 if (!bit_buffer)
2111 bit_buffer = av_malloc(bit_buffer_size);
2112 if (!bit_buffer) {
2113 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2114 bit_buffer_size);
2115 return AVERROR(ENOMEM);
2116 }
2117
2118 /* open each encoder */
2119 for (i = 0; i < nb_output_streams; i++) {
2120 ost = &output_streams[i];
2121 if (ost->encoding_needed) {
2122 AVCodec *codec = ost->enc;
2123 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2124 if (!codec) {
2125 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2126 ost->st->codec->codec_id, ost->file_index, ost->index);
2127 ret = AVERROR(EINVAL);
2128 goto dump_format;
2129 }
2130 if (dec->subtitle_header) {
2131 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2132 if (!ost->st->codec->subtitle_header) {
2133 ret = AVERROR(ENOMEM);
2134 goto dump_format;
2135 }
2136 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2137 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2138 }
2139 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2140 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2141 ost->file_index, ost->index);
2142 ret = AVERROR(EINVAL);
2143 goto dump_format;
2144 }
2145 assert_codec_experimental(ost->st->codec, 1);
2146 assert_avoptions(ost->opts);
2147 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2148 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2149 "It takes bits/s as argument, not kbits/s\n");
2150 extra_size += ost->st->codec->extradata_size;
2151 }
2152 }
2153
2154 /* init input streams */
2155 for (i = 0; i < nb_input_streams; i++)
2156 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0))
2157 goto dump_format;
2158
2159 /* open files and write file headers */
2160 for (i = 0; i < nb_output_files; i++) {
2161 os = output_files[i].ctx;
2162 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2163 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2164 ret = AVERROR(EINVAL);
2165 goto dump_format;
2166 }
2167 assert_avoptions(output_files[i].opts);
2168 if (strcmp(os->oformat->name, "rtp")) {
2169 want_sdp = 0;
2170 }
2171 }
2172
2173 dump_format:
2174 /* dump the file output parameters - cannot be done before in case
2175 of stream copy */
2176 for(i=0;i<nb_output_files;i++) {
2177 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2178 }
2179
2180 /* dump the stream mapping */
2181 if (verbose >= 0) {
2182 fprintf(stderr, "Stream mapping:\n");
2183 for (i = 0; i < nb_output_streams;i ++) {
2184 ost = &output_streams[i];
2185 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2186 input_streams[ost->source_index].file_index,
2187 input_streams[ost->source_index].st->index,
2188 ost->file_index,
2189 ost->index);
2190 if (ost->sync_ist != &input_streams[ost->source_index])
2191 fprintf(stderr, " [sync #%d.%d]",
2192 ost->sync_ist->file_index,
2193 ost->sync_ist->st->index);
2194 if (ost->st->stream_copy)
2195 fprintf(stderr, " (copy)");
2196 else
2197 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2198 input_streams[ost->source_index].dec->name : "?",
2199 ost->enc ? ost->enc->name : "?");
2200 fprintf(stderr, "\n");
2201 }
2202 }
2203
2204 if (ret) {
2205 fprintf(stderr, "%s\n", error);
2206 return ret;
2207 }
2208
2209 if (want_sdp) {
2210 print_sdp(output_files, nb_output_files);
2211 }
2212
2213 return 0;
2214 }
2215
2216 /*
2217 * The following code is the main loop of the file converter
2218 */
2219 static int transcode(OutputFile *output_files,
2220 int nb_output_files,
2221 InputFile *input_files,
2222 int nb_input_files)
2223 {
2224 int ret, i;
2225 AVFormatContext *is, *os;
2226 OutputStream *ost;
2227 InputStream *ist;
2228 uint8_t *no_packet;
2229 int no_packet_count=0;
2230 int64_t timer_start;
2231
2232 if (!(no_packet = av_mallocz(nb_input_files)))
2233 exit_program(1);
2234
2235 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2236 if (ret < 0)
2237 goto fail;
2238
2239 if (verbose >= 0)
2240 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2241 term_init();
2242
2243 timer_start = av_gettime();
2244
2245 for(; received_sigterm == 0;) {
2246 int file_index, ist_index;
2247 AVPacket pkt;
2248 int64_t ipts_min;
2249 double opts_min;
2250
2251 ipts_min = INT64_MAX;
2252 opts_min= 1e100;
2253
2254 /* select the stream that we must read now by looking at the
2255 smallest output pts */
2256 file_index = -1;
2257 for (i = 0; i < nb_output_streams; i++) {
2258 OutputFile *of;
2259 int64_t ipts;
2260 double opts;
2261 ost = &output_streams[i];
2262 of = &output_files[ost->file_index];
2263 os = output_files[ost->file_index].ctx;
2264 ist = &input_streams[ost->source_index];
2265 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2266 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2267 continue;
2268 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2269 ipts = ist->pts;
2270 if (!input_files[ist->file_index].eof_reached){
2271 if(ipts < ipts_min) {
2272 ipts_min = ipts;
2273 if(input_sync ) file_index = ist->file_index;
2274 }
2275 if(opts < opts_min) {
2276 opts_min = opts;
2277 if(!input_sync) file_index = ist->file_index;
2278 }
2279 }
2280 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2281 file_index= -1;
2282 break;
2283 }
2284 }
2285 /* if none, if is finished */
2286 if (file_index < 0) {
2287 if(no_packet_count){
2288 no_packet_count=0;
2289 memset(no_packet, 0, nb_input_files);
2290 usleep(10000);
2291 continue;
2292 }
2293 break;
2294 }
2295
2296 /* read a frame from it and output it in the fifo */
2297 is = input_files[file_index].ctx;
2298 ret= av_read_frame(is, &pkt);
2299 if(ret == AVERROR(EAGAIN)){
2300 no_packet[file_index]=1;
2301 no_packet_count++;
2302 continue;
2303 }
2304 if (ret < 0) {
2305 input_files[file_index].eof_reached = 1;
2306 if (opt_shortest)
2307 break;
2308 else
2309 continue;
2310 }
2311
2312 no_packet_count=0;
2313 memset(no_packet, 0, nb_input_files);
2314
2315 if (do_pkt_dump) {
2316 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2317 is->streams[pkt.stream_index]);
2318 }
2319 /* the following test is needed in case new streams appear
2320 dynamically in stream : we ignore them */
2321 if (pkt.stream_index >= input_files[file_index].nb_streams)
2322 goto discard_packet;
2323 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2324 ist = &input_streams[ist_index];
2325 if (ist->discard)
2326 goto discard_packet;
2327
2328 if (pkt.dts != AV_NOPTS_VALUE)
2329 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2330 if (pkt.pts != AV_NOPTS_VALUE)
2331 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2332
2333 if (ist->ts_scale) {
2334 if(pkt.pts != AV_NOPTS_VALUE)
2335 pkt.pts *= ist->ts_scale;
2336 if(pkt.dts != AV_NOPTS_VALUE)
2337 pkt.dts *= ist->ts_scale;
2338 }
2339
2340 // 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);
2341 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2342 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2343 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2344 int64_t delta= pkt_dts - ist->next_pts;
2345 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2346 input_files[ist->file_index].ts_offset -= delta;
2347 if (verbose > 2)
2348 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2349 delta, input_files[ist->file_index].ts_offset);
2350 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2351 if(pkt.pts != AV_NOPTS_VALUE)
2352 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2353 }
2354 }
2355
2356 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2357 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2358
2359 if (verbose >= 0)
2360 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2361 ist->file_index, ist->st->index);
2362 if (exit_on_error)
2363 exit_program(1);
2364 av_free_packet(&pkt);
2365 continue;
2366 }
2367
2368 discard_packet:
2369 av_free_packet(&pkt);
2370
2371 /* dump report by using the output first video and audio streams */
2372 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2373 }
2374
2375 /* at the end of stream, we must flush the decoder buffers */
2376 for (i = 0; i < nb_input_streams; i++) {
2377 ist = &input_streams[i];
2378 if (ist->decoding_needed) {
2379 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2380 }
2381 }
2382 flush_encoders(output_streams, nb_output_streams);
2383
2384 term_exit();
2385
2386 /* write the trailer if needed and close file */
2387 for(i=0;i<nb_output_files;i++) {
2388 os = output_files[i].ctx;
2389 av_write_trailer(os);
2390 }
2391
2392 /* dump report by using the first video and audio streams */
2393 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2394
2395 /* close each encoder */
2396 for (i = 0; i < nb_output_streams; i++) {
2397 ost = &output_streams[i];
2398 if (ost->encoding_needed) {
2399 av_freep(&ost->st->codec->stats_in);
2400 avcodec_close(ost->st->codec);
2401 }
2402 #if CONFIG_AVFILTER
2403 avfilter_graph_free(&ost->graph);
2404 #endif
2405 }
2406
2407 /* close each decoder */
2408 for (i = 0; i < nb_input_streams; i++) {
2409 ist = &input_streams[i];
2410 if (ist->decoding_needed) {
2411 avcodec_close(ist->st->codec);
2412 }
2413 }
2414
2415 /* finished ! */
2416 ret = 0;
2417
2418 fail:
2419 av_freep(&bit_buffer);
2420 av_freep(&no_packet);
2421
2422 if (output_streams) {
2423 for (i = 0; i < nb_output_streams; i++) {
2424 ost = &output_streams[i];
2425 if (ost) {
2426 if (ost->st->stream_copy)
2427 av_freep(&ost->st->codec->extradata);
2428 if (ost->logfile) {
2429 fclose(ost->logfile);
2430 ost->logfile = NULL;
2431 }
2432 av_fifo_free(ost->fifo); /* works even if fifo is not
2433 initialized but set to zero */
2434 av_freep(&ost->st->codec->subtitle_header);
2435 av_free(ost->pict_tmp.data[0]);
2436 av_free(ost->forced_kf_pts);
2437 if (ost->video_resample)
2438 sws_freeContext(ost->img_resample_ctx);
2439 if (ost->resample)
2440 audio_resample_close(ost->resample);
2441 if (ost->reformat_ctx)
2442 av_audio_convert_free(ost->reformat_ctx);
2443 av_dict_free(&ost->opts);
2444 }
2445 }
2446 }
2447 return ret;
2448 }
2449
2450 static int opt_format(const char *opt, const char *arg)
2451 {
2452 last_asked_format = arg;
2453 return 0;
2454 }
2455
2456 static int opt_video_rc_override_string(const char *opt, const char *arg)
2457 {
2458 video_rc_override_string = arg;
2459 return 0;
2460 }
2461
2462 static int opt_me_threshold(const char *opt, const char *arg)
2463 {
2464 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2465 return 0;
2466 }
2467
2468 static int opt_verbose(const char *opt, const char *arg)
2469 {
2470 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2471 return 0;
2472 }
2473
2474 static int opt_frame_rate(const char *opt, const char *arg)
2475 {
2476 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2477 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2478 exit_program(1);
2479 }
2480 return 0;
2481 }
2482
2483 static int opt_frame_crop(const char *opt, const char *arg)
2484 {
2485 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2486 return AVERROR(EINVAL);
2487 }
2488
2489 static int opt_frame_size(const char *opt, const char *arg)
2490 {
2491 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2492 fprintf(stderr, "Incorrect frame size\n");
2493 return AVERROR(EINVAL);
2494 }
2495 return 0;
2496 }
2497
2498 static int opt_pad(const char *opt, const char *arg) {
2499 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2500 return -1;
2501 }
2502
2503 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2504 {
2505 if (strcmp(arg, "list")) {
2506 frame_pix_fmt = av_get_pix_fmt(arg);
2507 if (frame_pix_fmt == PIX_FMT_NONE) {
2508 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2509 return AVERROR(EINVAL);
2510 }
2511 } else {
2512 show_pix_fmts();
2513 exit_program(0);
2514 }
2515 return 0;
2516 }
2517
2518 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2519 {
2520 int x = 0, y = 0;
2521 double ar = 0;
2522 const char *p;
2523 char *end;
2524
2525 p = strchr(arg, ':');
2526 if (p) {
2527 x = strtol(arg, &end, 10);
2528 if (end == p)
2529 y = strtol(end+1, &end, 10);
2530 if (x > 0 && y > 0)
2531 ar = (double)x / (double)y;
2532 } else
2533 ar = strtod(arg, NULL);
2534
2535 if (!ar) {
2536 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2537 return AVERROR(EINVAL);
2538 }
2539 frame_aspect_ratio = ar;
2540 return 0;
2541 }
2542
2543 static int opt_metadata(const char *opt, const char *arg)
2544 {
2545 char *mid= strchr(arg, '=');
2546
2547 if(!mid){
2548 fprintf(stderr, "Missing =\n");
2549 exit_program(1);
2550 }
2551 *mid++= 0;
2552
2553 av_dict_set(&metadata, arg, mid, 0);
2554
2555 return 0;
2556 }
2557
2558 static int opt_qscale(const char *opt, const char *arg)
2559 {
2560 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2561 if (video_qscale == 0) {
2562 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2563 return AVERROR(EINVAL);
2564 }
2565 return 0;
2566 }
2567
2568 static int opt_top_field_first(const char *opt, const char *arg)
2569 {
2570 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2571 return 0;
2572 }
2573
2574 static int opt_thread_count(const char *opt, const char *arg)
2575 {
2576 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2577 #if !HAVE_THREADS
2578 if (verbose >= 0)
2579 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2580 #endif
2581 return 0;
2582 }
2583
2584 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2585 {
2586 if (strcmp(arg, "list")) {
2587 audio_sample_fmt = av_get_sample_fmt(arg);
2588 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2589 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2590 return AVERROR(EINVAL);
2591 }
2592 } else {
2593 int i;
2594 char fmt_str[128];
2595 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2596 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2597 exit_program(0);
2598 }
2599 return 0;
2600 }
2601
2602 static int opt_audio_rate(const char *opt, const char *arg)
2603 {
2604 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2605 return 0;
2606 }
2607
2608 static int opt_audio_channels(const char *opt, const char *arg)
2609 {
2610 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2611 return 0;
2612 }
2613
2614 static int opt_codec(const char *opt, const char *arg)
2615 {
2616 return av_dict_set(&codec_names, opt, arg, 0);
2617 }
2618
2619 static int opt_audio_codec(const char *opt, const char *arg)
2620 {
2621 return opt_codec("codec:a", arg);
2622 }
2623
2624 static int opt_video_codec(const char *opt, const char *arg)
2625 {
2626 return opt_codec("codec:v", arg);
2627 }
2628
2629 static int opt_subtitle_codec(const char *opt, const char *arg)
2630 {
2631 return opt_codec("codec:s", arg);
2632 }
2633
2634 static int opt_data_codec(const char *opt, const char *arg)
2635 {
2636 return opt_codec("codec:d", arg);
2637 }
2638
2639 static int opt_codec_tag(const char *opt, const char *arg)
2640 {
2641 char *tail;
2642 uint32_t *codec_tag;
2643
2644 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2645 !strcmp(opt, "vtag") ? &video_codec_tag :
2646 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2647 if (!codec_tag)
2648 return -1;
2649
2650 *codec_tag = strtol(arg, &tail, 0);
2651 if (!tail || *tail)
2652 *codec_tag = AV_RL32(arg);
2653
2654 return 0;
2655 }
2656
2657 static int opt_map(const char *opt, const char *arg)
2658 {
2659 StreamMap *m = NULL;
2660 int i, negative = 0, file_idx;
2661 int sync_file_idx = -1, sync_stream_idx;
2662 char *p, *sync;
2663 char *map;
2664
2665 if (*arg == '-') {
2666 negative = 1;
2667 arg++;
2668 }
2669 map = av_strdup(arg);
2670
2671 /* parse sync stream first, just pick first matching stream */
2672 if (sync = strchr(map, ',')) {
2673 *sync = 0;
2674 sync_file_idx = strtol(sync + 1, &sync, 0);
2675 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2676 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2677 exit_program(1);
2678 }
2679 if (*sync)
2680 sync++;
2681 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2682 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2683 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2684 sync_stream_idx = i;
2685 break;
2686 }
2687 if (i == input_files[sync_file_idx].nb_streams) {
2688 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2689 "match any streams.\n", arg);
2690 exit_program(1);
2691 }
2692 }
2693
2694
2695 file_idx = strtol(map, &p, 0);
2696 if (file_idx >= nb_input_files || file_idx < 0) {
2697 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2698 exit_program(1);
2699 }
2700 if (negative)
2701 /* disable some already defined maps */
2702 for (i = 0; i < nb_stream_maps; i++) {
2703 m = &stream_maps[i];
2704 if (check_stream_specifier(input_files[m->file_index].ctx,
2705 input_files[m->file_index].ctx->streams[m->stream_index],
2706 *p == ':' ? p + 1 : p) > 0)
2707 m->disabled = 1;
2708 }
2709 else
2710 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2711 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2712 *p == ':' ? p + 1 : p) <= 0)
2713 continue;
2714 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2715 m = &stream_maps[nb_stream_maps - 1];
2716
2717 m->file_index = file_idx;
2718 m->stream_index = i;
2719
2720 if (sync_file_idx >= 0) {
2721 m->sync_file_index = sync_file_idx;
2722 m->sync_stream_index = sync_stream_idx;
2723 } else {
2724 m->sync_file_index = file_idx;
2725 m->sync_stream_index = i;
2726 }
2727 }
2728
2729 if (!m) {
2730 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2731 exit_program(1);
2732 }
2733
2734 av_freep(&map);
2735 return 0;
2736 }
2737
2738 static void parse_meta_type(char *arg, char *type, int *index)
2739 {
2740 if (*arg == ':') {
2741 *type = *(++arg);
2742 switch (*arg) {
2743 case 'g':
2744 break;
2745 case 's':
2746 case 'c':
2747 case 'p':
2748 if (*(++arg) == ':')
2749 *index = strtol(++arg, NULL, 0);
2750 break;
2751 default:
2752 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2753 exit_program(1);
2754 }
2755 } else
2756 *type = 'g';
2757 }
2758
2759 static int opt_map_metadata(const char *opt, const char *arg)
2760 {
2761 MetadataMap *m, *m1;
2762 char *p;
2763
2764 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2765 &nb_meta_data_maps, nb_meta_data_maps + 1);
2766
2767 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2768 m->file = strtol(arg, &p, 0);
2769 parse_meta_type(p, &m->type, &m->index);
2770
2771 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2772 if (p = strchr(opt, ':'))
2773 parse_meta_type(p, &m1->type, &m1->index);
2774 else
2775 m1->type = 'g';
2776
2777 if (m->type == 'g' || m1->type == 'g')
2778 metadata_global_autocopy = 0;
2779 if (m->type == 's' || m1->type == 's')
2780 metadata_streams_autocopy = 0;
2781 if (m->type == 'c' || m1->type == 'c')
2782 metadata_chapters_autocopy = 0;
2783
2784 return 0;
2785 }
2786
2787 static int opt_input_ts_scale(const char *opt, const char *arg)
2788 {
2789 return av_dict_set(&ts_scale, opt, arg, 0);
2790 }
2791
2792 static int opt_recording_time(const char *opt, const char *arg)
2793 {
2794 recording_time = parse_time_or_die(opt, arg, 1);
2795 return 0;
2796 }
2797
2798 static int opt_start_time(const char *opt, const char *arg)
2799 {
2800 start_time = parse_time_or_die(opt, arg, 1);
2801 return 0;
2802 }
2803
2804 static int opt_input_ts_offset(const char *opt, const char *arg)
2805 {
2806 input_ts_offset = parse_time_or_die(opt, arg, 1);
2807 return 0;
2808 }
2809
2810 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2811 {
2812 const char *codec_string = encoder ? "encoder" : "decoder";
2813 AVCodec *codec;
2814
2815 if(!name)
2816 return CODEC_ID_NONE;
2817 codec = encoder ?
2818 avcodec_find_encoder_by_name(name) :
2819 avcodec_find_decoder_by_name(name);
2820 if(!codec) {
2821 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2822 exit_program(1);
2823 }
2824 if(codec->type != type) {
2825 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2826 exit_program(1);
2827 }
2828 return codec->id;
2829 }
2830
2831 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2832 {
2833 AVDictionaryEntry *e = NULL;
2834 char *codec_name = NULL;
2835 int ret;
2836
2837 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2838 char *p = strchr(e->key, ':');
2839
2840 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2841 codec_name = e->value;
2842 else if (ret < 0)
2843 exit_program(1);
2844 }
2845
2846 if (!codec_name) {
2847 if (s->oformat) {
2848 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2849 return avcodec_find_encoder(st->codec->codec_id);
2850 }
2851 } else if (!strcmp(codec_name, "copy"))
2852 st->stream_copy = 1;
2853 else {
2854 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2855 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2856 avcodec_find_decoder_by_name(codec_name);
2857 }
2858
2859 return NULL;
2860 }
2861
2862 /**
2863 * Add all the streams from the given input file to the global
2864 * list of input streams.
2865 */
2866 static void add_input_streams(AVFormatContext *ic)
2867 {
2868 int i, rfps, rfps_base, ret;
2869
2870 for (i = 0; i < ic->nb_streams; i++) {
2871 AVStream *st = ic->streams[i];
2872 AVCodecContext *dec = st->codec;
2873 AVDictionaryEntry *e = NULL;
2874 InputStream *ist;
2875 char *scale = NULL;
2876
2877 dec->thread_count = thread_count;
2878
2879 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2880 ist = &input_streams[nb_input_streams - 1];
2881 ist->st = st;
2882 ist->file_index = nb_input_files;
2883 ist->discard = 1;
2884 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2885
2886 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2887 char *p = strchr(e->key, ':');
2888
2889 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2890 scale = e->value;
2891 else if (ret < 0)
2892 exit_program(1);
2893 }
2894 if (scale)
2895 ist->ts_scale = strtod(scale, NULL);
2896
2897 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2898 if (!ist->dec)
2899 ist->dec = avcodec_find_decoder(dec->codec_id);
2900
2901 switch (dec->codec_type) {
2902 case AVMEDIA_TYPE_AUDIO:
2903 if(audio_disable)
2904 st->discard= AVDISCARD_ALL;
2905 break;
2906 case AVMEDIA_TYPE_VIDEO:
2907 rfps = ic->streams[i]->r_frame_rate.num;
2908 rfps_base = ic->streams[i]->r_frame_rate.den;
2909 if (dec->lowres) {
2910 dec->flags |= CODEC_FLAG_EMU_EDGE;
2911 dec->height >>= dec->lowres;
2912 dec->width >>= dec->lowres;
2913 }
2914 if(me_threshold)
2915 dec->debug |= FF_DEBUG_MV;
2916
2917 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2918
2919 if (verbose >= 0)
2920 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2921 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2922
2923 (float)rfps / rfps_base, rfps, rfps_base);
2924 }
2925
2926 if(video_disable)
2927 st->discard= AVDISCARD_ALL;
2928 else if(video_discard)
2929 st->discard= video_discard;
2930 break;
2931 case AVMEDIA_TYPE_DATA:
2932 break;
2933 case AVMEDIA_TYPE_SUBTITLE:
2934 if(subtitle_disable)
2935 st->discard = AVDISCARD_ALL;
2936 break;
2937 case AVMEDIA_TYPE_ATTACHMENT:
2938 case AVMEDIA_TYPE_UNKNOWN:
2939 break;
2940 default:
2941 abort();
2942 }
2943 }
2944 }
2945
2946 static int opt_input_file(const char *opt, const char *filename)
2947 {
2948 AVFormatContext *ic;
2949 AVInputFormat *file_iformat = NULL;
2950 int err, i, ret;
2951 int64_t timestamp;
2952 uint8_t buf[128];
2953 AVDictionary **opts;
2954 int orig_nb_streams; // number of streams before avformat_find_stream_info
2955
2956 if (last_asked_format) {
2957 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2958 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2959 exit_program(1);
2960 }
2961 last_asked_format = NULL;
2962 }
2963
2964 if (!strcmp(filename, "-"))
2965 filename = "pipe:";
2966
2967 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2968 !strcmp(filename, "/dev/stdin");
2969
2970 /* get default parameters from command line */
2971 ic = avformat_alloc_context();
2972 if (!ic) {
2973 print_error(filename, AVERROR(ENOMEM));
2974 exit_program(1);
2975 }
2976 if (audio_sample_rate) {
2977 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2978 av_dict_set(&format_opts, "sample_rate", buf, 0);
2979 }
2980 if (audio_channels) {
2981 snprintf(buf, sizeof(buf), "%d", audio_channels);
2982 av_dict_set(&format_opts, "channels", buf, 0);
2983 }
2984 if (frame_rate.num) {
2985 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2986 av_dict_set(&format_opts, "framerate", buf, 0);
2987 }
2988 if (frame_width && frame_height) {
2989 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2990 av_dict_set(&format_opts, "video_size", buf, 0);
2991 }
2992 if (frame_pix_fmt != PIX_FMT_NONE)
2993 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2994
2995 ic->flags |= AVFMT_FLAG_NONBLOCK;
2996
2997 /* open the input file with generic libav function */
2998 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2999 if (err < 0) {
3000 print_error(filename, err);
3001 exit_program(1);
3002 }
3003 assert_avoptions(format_opts);
3004
3005 if(opt_programid) {
3006 int i, j;
3007 int found=0;
3008 for(i=0; i<ic->nb_streams; i++){
3009 ic->streams[i]->discard= AVDISCARD_ALL;
3010 }
3011 for(i=0; i<ic->nb_programs; i++){
3012 AVProgram *p= ic->programs[i];
3013 if(p->id != opt_programid){
3014 p->discard = AVDISCARD_ALL;
3015 }else{
3016 found=1;
3017 for(j=0; j<p->nb_stream_indexes; j++){
3018 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3019 }
3020 }
3021 }
3022 if(!found){
3023 fprintf(stderr, "Specified program id not found\n");
3024 exit_program(1);
3025 }
3026 opt_programid=0;
3027 }
3028
3029 /* apply forced codec ids */
3030 for (i = 0; i < ic->nb_streams; i++)
3031 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3032
3033 /* Set AVCodecContext options for avformat_find_stream_info */
3034 opts = setup_find_stream_info_opts(ic, codec_opts);
3035 orig_nb_streams = ic->nb_streams;
3036
3037 /* If not enough info to get the stream parameters, we decode the
3038 first frames to get it. (used in mpeg case for example) */
3039 ret = avformat_find_stream_info(ic, opts);
3040 if (ret < 0 && verbose >= 0) {
3041 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3042 av_close_input_file(ic);
3043 exit_program(1);
3044 }
3045
3046 timestamp = start_time;
3047 /* add the stream start time */
3048 if (ic->start_time != AV_NOPTS_VALUE)
3049 timestamp += ic->start_time;
3050
3051 /* if seeking requested, we execute it */
3052 if (start_time != 0) {
3053 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3054 if (ret < 0) {
3055 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3056 filename, (double)timestamp / AV_TIME_BASE);
3057 }
3058 /* reset seek info */
3059 start_time = 0;
3060 }
3061
3062 /* update the current parameters so that they match the one of the input stream */
3063 add_input_streams(ic);
3064
3065 /* dump the file content */
3066 if (verbose >= 0)
3067 av_dump_format(ic, nb_input_files, filename, 0);
3068
3069 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3070 input_files[nb_input_files - 1].ctx = ic;
3071 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3072 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3073 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3074
3075 frame_rate = (AVRational){0, 0};
3076 frame_pix_fmt = PIX_FMT_NONE;
3077 frame_height = 0;
3078 frame_width = 0;
3079 audio_sample_rate = 0;
3080 audio_channels = 0;
3081 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3082 av_dict_free(&ts_scale);
3083 input_ts_offset = 0;
3084
3085 for (i = 0; i < orig_nb_streams; i++)
3086 av_dict_free(&opts[i]);
3087 av_freep(&opts);
3088 av_dict_free(&codec_names);
3089 uninit_opts();
3090 init_opts();
3091 return 0;
3092 }
3093
3094 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3095 AVCodecContext *avctx)
3096 {
3097 char *p;
3098 int n = 1, i;
3099 int64_t t;
3100
3101 for (p = kf; *p; p++)
3102 if (*p == ',')
3103 n++;
3104 ost->forced_kf_count = n;
3105 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3106 if (!ost->forced_kf_pts) {
3107 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3108 exit_program(1);
3109 }
3110 for (i = 0; i < n; i++) {
3111 p = i ? strchr(p, ',') + 1 : kf;
3112 t = parse_time_or_die("force_key_frames", p, 1);
3113 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3114 }
3115 }
3116
3117 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3118 {
3119 OutputStream *ost;
3120 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3121 int idx = oc->nb_streams - 1;
3122
3123 if (!st) {
3124 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3125 exit_program(1);
3126 }
3127
3128 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3129 nb_output_streams + 1);
3130 ost = &output_streams[nb_output_streams - 1];
3131 ost->file_index = nb_output_files;
3132 ost->index = idx;
3133 ost->st = st;
3134 st->codec->codec_type = type;
3135 ost->enc = choose_codec(oc, st, type, codec_names);
3136 if (ost->enc) {
3137 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3138 }
3139
3140 avcodec_get_context_defaults3(st->codec, ost->enc);
3141 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3142
3143 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3144 return ost;
3145 }
3146
3147 static OutputStream *new_video_stream(AVFormatContext *oc)
3148 {
3149 AVStream *st;
3150 OutputStream *ost;
3151 AVCodecContext *video_enc;
3152
3153 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3154 st = ost->st;
3155 if (!st->stream_copy) {
3156 ost->frame_aspect_ratio = frame_aspect_ratio;
3157 frame_aspect_ratio = 0;
3158 #if CONFIG_AVFILTER
3159 ost->avfilter= vfilters;
3160 vfilters = NULL;
3161 #endif
3162 }
3163
3164 ost->bitstream_filters = video_bitstream_filters;
3165 video_bitstream_filters= NULL;
3166
3167 st->codec->thread_count= thread_count;
3168