4ac7072ed6e7e781841007b3afa965cbbc198821
[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 "libavutil/imgutils.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/buffersrc.h"
54 # include "libavfilter/vsrc_buffer.h"
55 #endif
56
57 #if HAVE_SYS_RESOURCE_H
58 #include <sys/types.h>
59 #include <sys/time.h>
60 #include <sys/resource.h>
61 #elif HAVE_GETPROCESSTIMES
62 #include <windows.h>
63 #endif
64 #if HAVE_GETPROCESSMEMORYINFO
65 #include <windows.h>
66 #include <psapi.h>
67 #endif
68
69 #if HAVE_SYS_SELECT_H
70 #include <sys/select.h>
71 #endif
72
73 #include <time.h>
74
75 #include "cmdutils.h"
76
77 #include "libavutil/avassert.h"
78
79 const char program_name[] = "avconv";
80 const int program_birth_year = 2000;
81
82 /* select an input stream for an output stream */
83 typedef struct StreamMap {
84 int disabled; /** 1 is this mapping is disabled by a negative map */
85 int file_index;
86 int stream_index;
87 int sync_file_index;
88 int sync_stream_index;
89 } StreamMap;
90
91 /**
92 * select an input file for an output file
93 */
94 typedef struct MetadataMap {
95 int file; ///< file index
96 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
97 int index; ///< stream/chapter/program number
98 } MetadataMap;
99
100 static const OptionDef options[];
101
102 static int video_discard = 0;
103 static int same_quant = 0;
104 static int do_deinterlace = 0;
105 static int intra_dc_precision = 8;
106 static int qp_hist = 0;
107
108 static int file_overwrite = 0;
109 static int do_benchmark = 0;
110 static int do_hex_dump = 0;
111 static int do_pkt_dump = 0;
112 static int do_pass = 0;
113 static char *pass_logfilename_prefix = NULL;
114 static int video_sync_method= -1;
115 static int audio_sync_method= 0;
116 static float audio_drift_threshold= 0.1;
117 static int copy_ts= 0;
118 static int copy_tb = 1;
119 static int opt_shortest = 0;
120 static char *vstats_filename;
121 static FILE *vstats_file;
122
123 static int audio_volume = 256;
124
125 static int exit_on_error = 0;
126 static int using_stdin = 0;
127 static int64_t video_size = 0;
128 static int64_t audio_size = 0;
129 static int64_t extra_size = 0;
130 static int nb_frames_dup = 0;
131 static int nb_frames_drop = 0;
132 static int input_sync;
133
134 static float dts_delta_threshold = 10;
135
136 static int print_stats = 1;
137
138 static uint8_t *audio_buf;
139 static uint8_t *audio_out;
140 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
141
142 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
143
144 typedef struct FrameBuffer {
145 uint8_t *base[4];
146 uint8_t *data[4];
147 int linesize[4];
148
149 int h, w;
150 enum PixelFormat pix_fmt;
151
152 int refcount;
153 struct InputStream *ist;
154 struct FrameBuffer *next;
155 } FrameBuffer;
156
157 typedef struct InputStream {
158 int file_index;
159 AVStream *st;
160 int discard; /* true if stream data should be discarded */
161 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
162 AVCodec *dec;
163 AVFrame *decoded_frame;
164 AVFrame *filtered_frame;
165
166 int64_t start; /* time when read started */
167 int64_t next_pts; /* synthetic pts for cases where pkt.pts
168 is not defined */
169 int64_t pts; /* current pts */
170 PtsCorrectionContext pts_ctx;
171 double ts_scale;
172 int is_start; /* is 1 at the start and after a discontinuity */
173 int showed_multi_packet_warning;
174 AVDictionary *opts;
175
176 /* a pool of free buffers for decoded data */
177 FrameBuffer *buffer_pool;
178 } InputStream;
179
180 typedef struct InputFile {
181 AVFormatContext *ctx;
182 int eof_reached; /* true if eof reached */
183 int ist_index; /* index of first stream in ist_table */
184 int buffer_size; /* current total buffer size */
185 int64_t ts_offset;
186 int nb_streams; /* number of stream that avconv is aware of; may be different
187 from ctx.nb_streams if new streams appear during av_read_frame() */
188 int rate_emu;
189 } InputFile;
190
191 typedef struct OutputStream {
192 int file_index; /* file index */
193 int index; /* stream index in the output file */
194 int source_index; /* InputStream index */
195 AVStream *st; /* stream in the output file */
196 int encoding_needed; /* true if encoding needed for this stream */
197 int frame_number;
198 /* input pts and corresponding output pts
199 for A/V sync */
200 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
201 struct InputStream *sync_ist; /* input stream to sync against */
202 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
203 AVBitStreamFilterContext *bitstream_filters;
204 AVCodec *enc;
205 int64_t max_frames;
206
207 /* video only */
208 int video_resample;
209 AVFrame pict_tmp; /* temporary image for resampling */
210 struct SwsContext *img_resample_ctx; /* for image resampling */
211 int resample_height;
212 int resample_width;
213 int resample_pix_fmt;
214 AVRational frame_rate;
215 int force_fps;
216 int top_field_first;
217
218 float frame_aspect_ratio;
219
220 /* forced key frames */
221 int64_t *forced_kf_pts;
222 int forced_kf_count;
223 int forced_kf_index;
224
225 /* audio only */
226 int audio_resample;
227 ReSampleContext *resample; /* for audio resampling */
228 int resample_sample_fmt;
229 int resample_channels;
230 int resample_sample_rate;
231 int reformat_pair;
232 AVAudioConvert *reformat_ctx;
233 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
234 FILE *logfile;
235
236 #if CONFIG_AVFILTER
237 AVFilterContext *output_video_filter;
238 AVFilterContext *input_video_filter;
239 AVFilterBufferRef *picref;
240 char *avfilter;
241 AVFilterGraph *graph;
242 #endif
243
244 int64_t sws_flags;
245 AVDictionary *opts;
246 int is_past_recording_time;
247 int stream_copy;
248 const char *attachment_filename;
249 int copy_initial_nonkeyframes;
250 } OutputStream;
251
252
253 typedef struct OutputFile {
254 AVFormatContext *ctx;
255 AVDictionary *opts;
256 int ost_index; /* index of the first stream in output_streams */
257 int64_t recording_time; /* desired length of the resulting file in microseconds */
258 int64_t start_time; /* start time in microseconds */
259 uint64_t limit_filesize;
260 } OutputFile;
261
262 static InputStream *input_streams = NULL;
263 static int nb_input_streams = 0;
264 static InputFile *input_files = NULL;
265 static int nb_input_files = 0;
266
267 static OutputStream *output_streams = NULL;
268 static int nb_output_streams = 0;
269 static OutputFile *output_files = NULL;
270 static int nb_output_files = 0;
271
272 typedef struct OptionsContext {
273 /* input/output options */
274 int64_t start_time;
275 const char *format;
276
277 SpecifierOpt *codec_names;
278 int nb_codec_names;
279 SpecifierOpt *audio_channels;
280 int nb_audio_channels;
281 SpecifierOpt *audio_sample_rate;
282 int nb_audio_sample_rate;
283 SpecifierOpt *frame_rates;
284 int nb_frame_rates;
285 SpecifierOpt *frame_sizes;
286 int nb_frame_sizes;
287 SpecifierOpt *frame_pix_fmts;
288 int nb_frame_pix_fmts;
289
290 /* input options */
291 int64_t input_ts_offset;
292 int rate_emu;
293
294 SpecifierOpt *ts_scale;
295 int nb_ts_scale;
296 SpecifierOpt *dump_attachment;
297 int nb_dump_attachment;
298
299 /* output options */
300 StreamMap *stream_maps;
301 int nb_stream_maps;
302 /* first item specifies output metadata, second is input */
303 MetadataMap (*meta_data_maps)[2];
304 int nb_meta_data_maps;
305 int metadata_global_manual;
306 int metadata_streams_manual;
307 int metadata_chapters_manual;
308 const char **attachments;
309 int nb_attachments;
310
311 int chapters_input_file;
312
313 int64_t recording_time;
314 uint64_t limit_filesize;
315 float mux_preload;
316 float mux_max_delay;
317
318 int video_disable;
319 int audio_disable;
320 int subtitle_disable;
321 int data_disable;
322
323 /* indexed by output file stream index */
324 int *streamid_map;
325 int nb_streamid_map;
326
327 SpecifierOpt *metadata;
328 int nb_metadata;
329 SpecifierOpt *max_frames;
330 int nb_max_frames;
331 SpecifierOpt *bitstream_filters;
332 int nb_bitstream_filters;
333 SpecifierOpt *codec_tags;
334 int nb_codec_tags;
335 SpecifierOpt *sample_fmts;
336 int nb_sample_fmts;
337 SpecifierOpt *qscale;
338 int nb_qscale;
339 SpecifierOpt *forced_key_frames;
340 int nb_forced_key_frames;
341 SpecifierOpt *force_fps;
342 int nb_force_fps;
343 SpecifierOpt *frame_aspect_ratios;
344 int nb_frame_aspect_ratios;
345 SpecifierOpt *rc_overrides;
346 int nb_rc_overrides;
347 SpecifierOpt *intra_matrices;
348 int nb_intra_matrices;
349 SpecifierOpt *inter_matrices;
350 int nb_inter_matrices;
351 SpecifierOpt *top_field_first;
352 int nb_top_field_first;
353 SpecifierOpt *metadata_map;
354 int nb_metadata_map;
355 SpecifierOpt *presets;
356 int nb_presets;
357 SpecifierOpt *copy_initial_nonkeyframes;
358 int nb_copy_initial_nonkeyframes;
359 #if CONFIG_AVFILTER
360 SpecifierOpt *filters;
361 int nb_filters;
362 #endif
363 } OptionsContext;
364
365 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
366 {\
367 int i, ret;\
368 for (i = 0; i < o->nb_ ## name; i++) {\
369 char *spec = o->name[i].specifier;\
370 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
371 outvar = o->name[i].u.type;\
372 else if (ret < 0)\
373 exit_program(1);\
374 }\
375 }
376
377 static void reset_options(OptionsContext *o)
378 {
379 const OptionDef *po = options;
380
381 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
382 while (po->name) {
383 void *dst = (uint8_t*)o + po->u.off;
384
385 if (po->flags & OPT_SPEC) {
386 SpecifierOpt **so = dst;
387 int i, *count = (int*)(so + 1);
388 for (i = 0; i < *count; i++) {
389 av_freep(&(*so)[i].specifier);
390 if (po->flags & OPT_STRING)
391 av_freep(&(*so)[i].u.str);
392 }
393 av_freep(so);
394 *count = 0;
395 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
396 av_freep(dst);
397 po++;
398 }
399
400 av_freep(&o->stream_maps);
401 av_freep(&o->meta_data_maps);
402 av_freep(&o->streamid_map);
403
404 memset(o, 0, sizeof(*o));
405
406 o->mux_max_delay = 0.7;
407 o->recording_time = INT64_MAX;
408 o->limit_filesize = UINT64_MAX;
409 o->chapters_input_file = INT_MAX;
410
411 uninit_opts();
412 init_opts();
413 }
414
415 static int alloc_buffer(InputStream *ist, FrameBuffer **pbuf)
416 {
417 AVCodecContext *s = ist->st->codec;
418 FrameBuffer *buf = av_mallocz(sizeof(*buf));
419 int ret;
420 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
421 int h_chroma_shift, v_chroma_shift;
422 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
423 int w = s->width, h = s->height;
424
425 if (!buf)
426 return AVERROR(ENOMEM);
427
428 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
429 w += 2*edge;
430 h += 2*edge;
431 }
432
433 avcodec_align_dimensions(s, &w, &h);
434 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
435 s->pix_fmt, 32)) < 0) {
436 av_freep(&buf);
437 return ret;
438 }
439 /* XXX this shouldn't be needed, but some tests break without this line
440 * those decoders are buggy and need to be fixed.
441 * the following tests fail:
442 * bethsoft-vid, cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
443 */
444 memset(buf->base[0], 128, ret);
445
446 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
447 for (int i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
448 const int h_shift = i==0 ? 0 : h_chroma_shift;
449 const int v_shift = i==0 ? 0 : v_chroma_shift;
450 if (s->flags & CODEC_FLAG_EMU_EDGE)
451 buf->data[i] = buf->base[i];
452 else
453 buf->data[i] = buf->base[i] +
454 FFALIGN((buf->linesize[i]*edge >> v_shift) +
455 (pixel_size*edge >> h_shift), 32);
456 }
457 buf->w = s->width;
458 buf->h = s->height;
459 buf->pix_fmt = s->pix_fmt;
460 buf->ist = ist;
461
462 *pbuf = buf;
463 return 0;
464 }
465
466 static void free_buffer_pool(InputStream *ist)
467 {
468 FrameBuffer *buf = ist->buffer_pool;
469 while (buf) {
470 ist->buffer_pool = buf->next;
471 av_freep(&buf->base[0]);
472 av_free(buf);
473 buf = ist->buffer_pool;
474 }
475 }
476
477 static void unref_buffer(InputStream *ist, FrameBuffer *buf)
478 {
479 av_assert0(buf->refcount);
480 buf->refcount--;
481 if (!buf->refcount) {
482 buf->next = ist->buffer_pool;
483 ist->buffer_pool = buf;
484 }
485 }
486
487 static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
488 {
489 InputStream *ist = s->opaque;
490 FrameBuffer *buf;
491 int ret, i;
492
493 if (!ist->buffer_pool && (ret = alloc_buffer(ist, &ist->buffer_pool)) < 0)
494 return ret;
495
496 buf = ist->buffer_pool;
497 ist->buffer_pool = buf->next;
498 buf->next = NULL;
499 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
500 av_freep(&buf->base[0]);
501 av_free(buf);
502 if ((ret = alloc_buffer(ist, &buf)) < 0)
503 return ret;
504 }
505 buf->refcount++;
506
507 frame->opaque = buf;
508 frame->type = FF_BUFFER_TYPE_USER;
509 frame->extended_data = frame->data;
510 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
511
512 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
513 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
514 frame->data[i] = buf->data[i];
515 frame->linesize[i] = buf->linesize[i];
516 }
517
518 return 0;
519 }
520
521 static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
522 {
523 InputStream *ist = s->opaque;
524 FrameBuffer *buf = frame->opaque;
525 int i;
526
527 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
528 frame->data[i] = NULL;
529
530 unref_buffer(ist, buf);
531 }
532
533 static void filter_release_buffer(AVFilterBuffer *fb)
534 {
535 FrameBuffer *buf = fb->priv;
536 av_free(fb);
537 unref_buffer(buf->ist, buf);
538 }
539
540 #if CONFIG_AVFILTER
541
542 static int configure_video_filters(InputStream *ist, OutputStream *ost)
543 {
544 AVFilterContext *last_filter, *filter;
545 /** filter graph containing all filters including input & output */
546 AVCodecContext *codec = ost->st->codec;
547 AVCodecContext *icodec = ist->st->codec;
548 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
549 AVRational sample_aspect_ratio;
550 char args[255];
551 int ret;
552
553 ost->graph = avfilter_graph_alloc();
554
555 if (ist->st->sample_aspect_ratio.num){
556 sample_aspect_ratio = ist->st->sample_aspect_ratio;
557 }else
558 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
559
560 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
561 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
562 sample_aspect_ratio.num, sample_aspect_ratio.den);
563
564 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
565 "src", args, NULL, ost->graph);
566 if (ret < 0)
567 return ret;
568 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
569 "out", NULL, &ffsink_ctx, ost->graph);
570 if (ret < 0)
571 return ret;
572 last_filter = ost->input_video_filter;
573
574 if (codec->width != icodec->width || codec->height != icodec->height) {
575 snprintf(args, 255, "%d:%d:flags=0x%X",
576 codec->width,
577 codec->height,
578 (unsigned)ost->sws_flags);
579 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
580 NULL, args, NULL, ost->graph)) < 0)
581 return ret;
582 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
583 return ret;
584 last_filter = filter;
585 }
586
587 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
588 ost->graph->scale_sws_opts = av_strdup(args);
589
590 if (ost->avfilter) {
591 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
592 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
593
594 outputs->name = av_strdup("in");
595 outputs->filter_ctx = last_filter;
596 outputs->pad_idx = 0;
597 outputs->next = NULL;
598
599 inputs->name = av_strdup("out");
600 inputs->filter_ctx = ost->output_video_filter;
601 inputs->pad_idx = 0;
602 inputs->next = NULL;
603
604 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
605 return ret;
606 av_freep(&ost->avfilter);
607 } else {
608 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
609 return ret;
610 }
611
612 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
613 return ret;
614
615 codec->width = ost->output_video_filter->inputs[0]->w;
616 codec->height = ost->output_video_filter->inputs[0]->h;
617 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
618 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
619 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
620 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
621
622 return 0;
623 }
624 #endif /* CONFIG_AVFILTER */
625
626 static void term_exit(void)
627 {
628 av_log(NULL, AV_LOG_QUIET, "");
629 }
630
631 static volatile int received_sigterm = 0;
632 static volatile int received_nb_signals = 0;
633
634 static void
635 sigterm_handler(int sig)
636 {
637 received_sigterm = sig;
638 received_nb_signals++;
639 term_exit();
640 }
641
642 static void term_init(void)
643 {
644 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
645 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
646 #ifdef SIGXCPU
647 signal(SIGXCPU, sigterm_handler);
648 #endif
649 }
650
651 static int decode_interrupt_cb(void *ctx)
652 {
653 return received_nb_signals > 1;
654 }
655
656 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
657
658 void exit_program(int ret)
659 {
660 int i;
661
662 /* close files */
663 for(i=0;i<nb_output_files;i++) {
664 AVFormatContext *s = output_files[i].ctx;
665 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
666 avio_close(s->pb);
667 avformat_free_context(s);
668 av_dict_free(&output_files[i].opts);
669 }
670 for(i=0;i<nb_input_files;i++) {
671 avformat_close_input(&input_files[i].ctx);
672 }
673 for (i = 0; i < nb_input_streams; i++) {
674 av_freep(&input_streams[i].decoded_frame);
675 av_freep(&input_streams[i].filtered_frame);
676 av_dict_free(&input_streams[i].opts);
677 free_buffer_pool(&input_streams[i]);
678 }
679
680 if (vstats_file)
681 fclose(vstats_file);
682 av_free(vstats_filename);
683
684 av_freep(&input_streams);
685 av_freep(&input_files);
686 av_freep(&output_streams);
687 av_freep(&output_files);
688
689 uninit_opts();
690 av_free(audio_buf);
691 av_free(audio_out);
692 allocated_audio_buf_size= allocated_audio_out_size= 0;
693
694 #if CONFIG_AVFILTER
695 avfilter_uninit();
696 #endif
697 avformat_network_deinit();
698
699 if (received_sigterm) {
700 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
701 (int) received_sigterm);
702 exit (255);
703 }
704
705 exit(ret);
706 }
707
708 static void assert_avoptions(AVDictionary *m)
709 {
710 AVDictionaryEntry *t;
711 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
712 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
713 exit_program(1);
714 }
715 }
716
717 static void assert_codec_experimental(AVCodecContext *c, int encoder)
718 {
719 const char *codec_string = encoder ? "encoder" : "decoder";
720 AVCodec *codec;
721 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
722 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
723 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
724 "results.\nAdd '-strict experimental' if you want to use it.\n",
725 codec_string, c->codec->name);
726 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
727 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
728 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
729 codec_string, codec->name);
730 exit_program(1);
731 }
732 }
733
734 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
735 {
736 if(codec && codec->sample_fmts){
737 const enum AVSampleFormat *p= codec->sample_fmts;
738 for(; *p!=-1; p++){
739 if(*p == st->codec->sample_fmt)
740 break;
741 }
742 if (*p == -1) {
743 av_log(NULL, AV_LOG_WARNING,
744 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
745 av_get_sample_fmt_name(st->codec->sample_fmt),
746 codec->name,
747 av_get_sample_fmt_name(codec->sample_fmts[0]));
748 st->codec->sample_fmt = codec->sample_fmts[0];
749 }
750 }
751 }
752
753 /**
754 * Update the requested input sample format based on the output sample format.
755 * This is currently only used to request float output from decoders which
756 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
757 * Ideally this will be removed in the future when decoders do not do format
758 * conversion and only output in their native format.
759 */
760 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
761 AVCodecContext *enc)
762 {
763 /* if sample formats match or a decoder sample format has already been
764 requested, just return */
765 if (enc->sample_fmt == dec->sample_fmt ||
766 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
767 return;
768
769 /* if decoder supports more than one output format */
770 if (dec_codec && dec_codec->sample_fmts &&
771 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
772 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
773 const enum AVSampleFormat *p;
774 int min_dec = -1, min_inc = -1;
775
776 /* find a matching sample format in the encoder */
777 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
778 if (*p == enc->sample_fmt) {
779 dec->request_sample_fmt = *p;
780 return;
781 } else if (*p > enc->sample_fmt) {
782 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
783 } else
784 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
785 }
786
787 /* if none match, provide the one that matches quality closest */
788 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
789 enc->sample_fmt - min_dec;
790 }
791 }
792
793 static void choose_sample_rate(AVStream *st, AVCodec *codec)
794 {
795 if(codec && codec->supported_samplerates){
796 const int *p= codec->supported_samplerates;
797 int best=0;
798 int best_dist=INT_MAX;
799 for(; *p; p++){
800 int dist= abs(st->codec->sample_rate - *p);
801 if(dist < best_dist){
802 best_dist= dist;
803 best= *p;
804 }
805 }
806 if(best_dist){
807 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
808 }
809 st->codec->sample_rate= best;
810 }
811 }
812
813 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
814 {
815 if(codec && codec->pix_fmts){
816 const enum PixelFormat *p= codec->pix_fmts;
817 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
818 if(st->codec->codec_id==CODEC_ID_MJPEG){
819 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
820 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
821 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};
822 }
823 }
824 for (; *p != PIX_FMT_NONE; p++) {
825 if(*p == st->codec->pix_fmt)
826 break;
827 }
828 if (*p == PIX_FMT_NONE) {
829 if(st->codec->pix_fmt != PIX_FMT_NONE)
830 av_log(NULL, AV_LOG_WARNING,
831 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
832 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
833 codec->name,
834 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
835 st->codec->pix_fmt = codec->pix_fmts[0];
836 }
837 }
838 }
839
840 static double
841 get_sync_ipts(const OutputStream *ost)
842 {
843 const InputStream *ist = ost->sync_ist;
844 OutputFile *of = &output_files[ost->file_index];
845 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
846 }
847
848 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
849 int ret;
850
851 while(bsfc){
852 AVPacket new_pkt= *pkt;
853 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
854 &new_pkt.data, &new_pkt.size,
855 pkt->data, pkt->size,
856 pkt->flags & AV_PKT_FLAG_KEY);
857 if(a>0){
858 av_free_packet(pkt);
859 new_pkt.destruct= av_destruct_packet;
860 } else if(a<0){
861 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
862 bsfc->filter->name, pkt->stream_index,
863 avctx->codec ? avctx->codec->name : "copy");
864 print_error("", a);
865 if (exit_on_error)
866 exit_program(1);
867 }
868 *pkt= new_pkt;
869
870 bsfc= bsfc->next;
871 }
872
873 ret= av_interleaved_write_frame(s, pkt);
874 if(ret < 0){
875 print_error("av_interleaved_write_frame()", ret);
876 exit_program(1);
877 }
878 }
879
880 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
881 {
882 int fill_char = 0x00;
883 if (sample_fmt == AV_SAMPLE_FMT_U8)
884 fill_char = 0x80;
885 memset(buf, fill_char, size);
886 }
887
888 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
889 InputStream *ist, AVFrame *decoded_frame)
890 {
891 uint8_t *buftmp;
892 int64_t audio_out_size, audio_buf_size;
893
894 int size_out, frame_bytes, ret, resample_changed;
895 AVCodecContext *enc= ost->st->codec;
896 AVCodecContext *dec= ist->st->codec;
897 int osize = av_get_bytes_per_sample(enc->sample_fmt);
898 int isize = av_get_bytes_per_sample(dec->sample_fmt);
899 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
900 uint8_t *buf = decoded_frame->data[0];
901 int size = decoded_frame->nb_samples * dec->channels * isize;
902 int64_t allocated_for_size = size;
903
904 need_realloc:
905 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
906 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
907 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
908 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
909 audio_buf_size*= osize*enc->channels;
910
911 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
912 if(coded_bps > 8*osize)
913 audio_out_size= audio_out_size * coded_bps / (8*osize);
914 audio_out_size += FF_MIN_BUFFER_SIZE;
915
916 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
917 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
918 exit_program(1);
919 }
920
921 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
922 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
923 if (!audio_buf || !audio_out){
924 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
925 exit_program(1);
926 }
927
928 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
929 ost->audio_resample = 1;
930
931 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
932 ost->resample_channels != dec->channels ||
933 ost->resample_sample_rate != dec->sample_rate;
934
935 if ((ost->audio_resample && !ost->resample) || resample_changed) {
936 if (resample_changed) {
937 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",
938 ist->file_index, ist->st->index,
939 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
940 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
941 ost->resample_sample_fmt = dec->sample_fmt;
942 ost->resample_channels = dec->channels;
943 ost->resample_sample_rate = dec->sample_rate;
944 if (ost->resample)
945 audio_resample_close(ost->resample);
946 }
947 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
948 if (audio_sync_method <= 1 &&
949 ost->resample_sample_fmt == enc->sample_fmt &&
950 ost->resample_channels == enc->channels &&
951 ost->resample_sample_rate == enc->sample_rate) {
952 ost->resample = NULL;
953 ost->audio_resample = 0;
954 } else if (ost->audio_resample) {
955 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
956 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
957 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
958 enc->sample_rate, dec->sample_rate,
959 enc->sample_fmt, dec->sample_fmt,
960 16, 10, 0, 0.8);
961 if (!ost->resample) {
962 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
963 dec->channels, dec->sample_rate,
964 enc->channels, enc->sample_rate);
965 exit_program(1);
966 }
967 }
968 }
969
970 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
971 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
972 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
973 if (ost->reformat_ctx)
974 av_audio_convert_free(ost->reformat_ctx);
975 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
976 dec->sample_fmt, 1, NULL, 0);
977 if (!ost->reformat_ctx) {
978 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
979 av_get_sample_fmt_name(dec->sample_fmt),
980 av_get_sample_fmt_name(enc->sample_fmt));
981 exit_program(1);
982 }
983 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
984 }
985
986 if(audio_sync_method){
987 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
988 - av_fifo_size(ost->fifo)/(enc->channels * osize);
989 int idelta = delta * dec->sample_rate / enc->sample_rate;
990 int byte_delta = idelta * isize * dec->channels;
991
992 //FIXME resample delay
993 if(fabs(delta) > 50){
994 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
995 if(byte_delta < 0){
996 byte_delta= FFMAX(byte_delta, -size);
997 size += byte_delta;
998 buf -= byte_delta;
999 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1000 -byte_delta / (isize * dec->channels));
1001 if(!size)
1002 return;
1003 ist->is_start=0;
1004 }else{
1005 static uint8_t *input_tmp= NULL;
1006 input_tmp= av_realloc(input_tmp, byte_delta + size);
1007
1008 if(byte_delta > allocated_for_size - size){
1009 allocated_for_size= byte_delta + (int64_t)size;
1010 goto need_realloc;
1011 }
1012 ist->is_start=0;
1013
1014 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
1015 memcpy(input_tmp + byte_delta, buf, size);
1016 buf= input_tmp;
1017 size += byte_delta;
1018 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1019 }
1020 }else if(audio_sync_method>1){
1021 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
1022 av_assert0(ost->audio_resample);
1023 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1024 delta, comp, enc->sample_rate);
1025 // 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));
1026 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1027 }
1028 }
1029 }else
1030 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
1031 - av_fifo_size(ost->fifo)/(enc->channels * osize); //FIXME wrong
1032
1033 if (ost->audio_resample) {
1034 buftmp = audio_buf;
1035 size_out = audio_resample(ost->resample,
1036 (short *)buftmp, (short *)buf,
1037 size / (dec->channels * isize));
1038 size_out = size_out * enc->channels * osize;
1039 } else {
1040 buftmp = buf;
1041 size_out = size;
1042 }
1043
1044 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
1045 const void *ibuf[6]= {buftmp};
1046 void *obuf[6]= {audio_buf};
1047 int istride[6]= {isize};
1048 int ostride[6]= {osize};
1049 int len= size_out/istride[0];
1050 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1051 printf("av_audio_convert() failed\n");
1052 if (exit_on_error)
1053 exit_program(1);
1054 return;
1055 }
1056 buftmp = audio_buf;
1057 size_out = len*osize;
1058 }
1059
1060 /* now encode as many frames as possible */
1061 if (enc->frame_size > 1) {
1062 /* output resampled raw samples */
1063 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1064 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1065 exit_program(1);
1066 }
1067 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1068
1069 frame_bytes = enc->frame_size * osize * enc->channels;
1070
1071 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1072 AVPacket pkt;
1073 av_init_packet(&pkt);
1074
1075 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1076
1077 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1078
1079 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
1080 (short *)audio_buf);
1081 if (ret < 0) {
1082 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1083 exit_program(1);
1084 }
1085 audio_size += ret;
1086 pkt.stream_index= ost->index;
1087 pkt.data= audio_out;
1088 pkt.size= ret;
1089 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1090 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1091 pkt.flags |= AV_PKT_FLAG_KEY;
1092 write_frame(s, &pkt, enc, ost->bitstream_filters);
1093
1094 ost->sync_opts += enc->frame_size;
1095 }
1096 } else {
1097 AVPacket pkt;
1098 av_init_packet(&pkt);
1099
1100 ost->sync_opts += size_out / (osize * enc->channels);
1101
1102 /* output a pcm frame */
1103 /* determine the size of the coded buffer */
1104 size_out /= osize;
1105 if (coded_bps)
1106 size_out = size_out*coded_bps/8;
1107
1108 if(size_out > audio_out_size){
1109 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
1110 exit_program(1);
1111 }
1112
1113 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1114 ret = avcodec_encode_audio(enc, audio_out, size_out,
1115 (short *)buftmp);
1116 if (ret < 0) {
1117 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1118 exit_program(1);
1119 }
1120 audio_size += ret;
1121 pkt.stream_index= ost->index;
1122 pkt.data= audio_out;
1123 pkt.size= ret;
1124 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1125 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1126 pkt.flags |= AV_PKT_FLAG_KEY;
1127 write_frame(s, &pkt, enc, ost->bitstream_filters);
1128 }
1129 }
1130
1131 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1132 {
1133 AVCodecContext *dec;
1134 AVPicture *picture2;
1135 AVPicture picture_tmp;
1136 uint8_t *buf = 0;
1137
1138 dec = ist->st->codec;
1139
1140 /* deinterlace : must be done before any resize */
1141 if (do_deinterlace) {
1142 int size;
1143
1144 /* create temporary picture */
1145 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1146 buf = av_malloc(size);
1147 if (!buf)
1148 return;
1149
1150 picture2 = &picture_tmp;
1151 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1152
1153 if(avpicture_deinterlace(picture2, picture,
1154 dec->pix_fmt, dec->width, dec->height) < 0) {
1155 /* if error, do not deinterlace */
1156 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1157 av_free(buf);
1158 buf = NULL;
1159 picture2 = picture;
1160 }
1161 } else {
1162 picture2 = picture;
1163 }
1164
1165 if (picture != picture2)
1166 *picture = *picture2;
1167 *bufp = buf;
1168 }
1169
1170 static void do_subtitle_out(AVFormatContext *s,
1171 OutputStream *ost,
1172 InputStream *ist,
1173 AVSubtitle *sub,
1174 int64_t pts)
1175 {
1176 static uint8_t *subtitle_out = NULL;
1177 int subtitle_out_max_size = 1024 * 1024;
1178 int subtitle_out_size, nb, i;
1179 AVCodecContext *enc;
1180 AVPacket pkt;
1181
1182 if (pts == AV_NOPTS_VALUE) {
1183 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1184 if (exit_on_error)
1185 exit_program(1);
1186 return;
1187 }
1188
1189 enc = ost->st->codec;
1190
1191 if (!subtitle_out) {
1192 subtitle_out = av_malloc(subtitle_out_max_size);
1193 }
1194
1195 /* Note: DVB subtitle need one packet to draw them and one other
1196 packet to clear them */
1197 /* XXX: signal it in the codec context ? */
1198 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1199 nb = 2;
1200 else
1201 nb = 1;
1202
1203 for(i = 0; i < nb; i++) {
1204 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1205 // start_display_time is required to be 0
1206 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1207 sub->end_display_time -= sub->start_display_time;
1208 sub->start_display_time = 0;
1209 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1210 subtitle_out_max_size, sub);
1211 if (subtitle_out_size < 0) {
1212 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1213 exit_program(1);
1214 }
1215
1216 av_init_packet(&pkt);
1217 pkt.stream_index = ost->index;
1218 pkt.data = subtitle_out;
1219 pkt.size = subtitle_out_size;
1220 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1221 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1222 /* XXX: the pts correction is handled here. Maybe handling
1223 it in the codec would be better */
1224 if (i == 0)
1225 pkt.pts += 90 * sub->start_display_time;
1226 else
1227 pkt.pts += 90 * sub->end_display_time;
1228 }
1229 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1230 }
1231 }
1232
1233 static int bit_buffer_size= 1024*256;
1234 static uint8_t *bit_buffer= NULL;
1235
1236 static void do_video_resample(OutputStream *ost,
1237 InputStream *ist,
1238 AVFrame *in_picture,
1239 AVFrame **out_picture)
1240 {
1241 int resample_changed = 0;
1242 AVCodecContext *dec = ist->st->codec;
1243 *out_picture = in_picture;
1244
1245 resample_changed = ost->resample_width != dec->width ||
1246 ost->resample_height != dec->height ||
1247 ost->resample_pix_fmt != dec->pix_fmt;
1248
1249 if (resample_changed) {
1250 av_log(NULL, AV_LOG_INFO,
1251 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1252 ist->file_index, ist->st->index,
1253 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1254 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1255 if(!ost->video_resample)
1256 ost->video_resample = 1;
1257 }
1258
1259 #if !CONFIG_AVFILTER
1260 if (ost->video_resample) {
1261 *out_picture = &ost->pict_tmp;
1262 if (resample_changed) {
1263 /* initialize a new scaler context */
1264 sws_freeContext(ost->img_resample_ctx);
1265 ost->img_resample_ctx = sws_getContext(
1266 ist->st->codec->width,
1267 ist->st->codec->height,
1268 ist->st->codec->pix_fmt,
1269 ost->st->codec->width,
1270 ost->st->codec->height,
1271 ost->st->codec->pix_fmt,
1272 ost->sws_flags, NULL, NULL, NULL);
1273 if (ost->img_resample_ctx == NULL) {
1274 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1275 exit_program(1);
1276 }
1277 }
1278 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1279 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1280 }
1281 #else
1282 if (resample_changed) {
1283 avfilter_graph_free(&ost->graph);
1284 if (configure_video_filters(ist, ost)) {
1285 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1286 exit_program(1);
1287 }
1288 }
1289 #endif
1290 if (resample_changed) {
1291 ost->resample_width = dec->width;
1292 ost->resample_height = dec->height;
1293 ost->resample_pix_fmt = dec->pix_fmt;
1294 }
1295 }
1296
1297
1298 static void do_video_out(AVFormatContext *s,
1299 OutputStream *ost,
1300 InputStream *ist,
1301 AVFrame *in_picture,
1302 int *frame_size, float quality)
1303 {
1304 int nb_frames, i, ret, format_video_sync;
1305 AVFrame *final_picture;
1306 AVCodecContext *enc;
1307 double sync_ipts;
1308
1309 enc = ost->st->codec;
1310
1311 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1312
1313 /* by default, we output a single frame */
1314 nb_frames = 1;
1315
1316 *frame_size = 0;
1317
1318 format_video_sync = video_sync_method;
1319 if (format_video_sync < 0)
1320 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 :
1321 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1322
1323 if (format_video_sync) {
1324 double vdelta = sync_ipts - ost->sync_opts;
1325 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1326 if (vdelta < -1.1)
1327 nb_frames = 0;
1328 else if (format_video_sync == 2) {
1329 if(vdelta<=-0.6){
1330 nb_frames=0;
1331 }else if(vdelta>0.6)
1332 ost->sync_opts= lrintf(sync_ipts);
1333 }else if (vdelta > 1.1)
1334 nb_frames = lrintf(vdelta);
1335 //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);
1336 if (nb_frames == 0){
1337 ++nb_frames_drop;
1338 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1339 }else if (nb_frames > 1) {
1340 nb_frames_dup += nb_frames - 1;
1341 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1342 }
1343 }else
1344 ost->sync_opts= lrintf(sync_ipts);
1345
1346 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1347 if (nb_frames <= 0)
1348 return;
1349
1350 do_video_resample(ost, ist, in_picture, &final_picture);
1351
1352 /* duplicates frame if needed */
1353 for(i=0;i<nb_frames;i++) {
1354 AVPacket pkt;
1355 av_init_packet(&pkt);
1356 pkt.stream_index= ost->index;
1357
1358 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1359 enc->codec->id == CODEC_ID_RAWVIDEO) {
1360 /* raw pictures are written as AVPicture structure to
1361 avoid any copies. We support temporarily the older
1362 method. */
1363 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1364 enc->coded_frame->top_field_first = in_picture->top_field_first;
1365 pkt.data= (uint8_t *)final_picture;
1366 pkt.size= sizeof(AVPicture);
1367 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1368 pkt.flags |= AV_PKT_FLAG_KEY;
1369
1370 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1371 } else {
1372 AVFrame big_picture;
1373
1374 big_picture= *final_picture;
1375 /* better than nothing: use input picture interlaced
1376 settings */
1377 big_picture.interlaced_frame = in_picture->interlaced_frame;
1378 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1379 if (ost->top_field_first == -1)
1380 big_picture.top_field_first = in_picture->top_field_first;
1381 else
1382 big_picture.top_field_first = !!ost->top_field_first;
1383 }
1384
1385 /* handles same_quant here. This is not correct because it may
1386 not be a global option */
1387 big_picture.quality = quality;
1388 if (!enc->me_threshold)
1389 big_picture.pict_type = 0;
1390 // big_picture.pts = AV_NOPTS_VALUE;
1391 big_picture.pts= ost->sync_opts;
1392 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1393 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1394 if (ost->forced_kf_index < ost->forced_kf_count &&
1395 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1396 big_picture.pict_type = AV_PICTURE_TYPE_I;
1397 ost->forced_kf_index++;
1398 }
1399 ret = avcodec_encode_video(enc,
1400 bit_buffer, bit_buffer_size,
1401 &big_picture);
1402 if (ret < 0) {
1403 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1404 exit_program(1);
1405 }
1406
1407 if(ret>0){
1408 pkt.data= bit_buffer;
1409 pkt.size= ret;
1410 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1411 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1412 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1413 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1414 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1415
1416 if(enc->coded_frame->key_frame)
1417 pkt.flags |= AV_PKT_FLAG_KEY;
1418 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1419 *frame_size = ret;
1420 video_size += ret;
1421 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1422 // enc->frame_number-1, ret, enc->pict_type);
1423 /* if two pass, output log */
1424 if (ost->logfile && enc->stats_out) {
1425 fprintf(ost->logfile, "%s", enc->stats_out);
1426 }
1427 }
1428 }
1429 ost->sync_opts++;
1430 ost->frame_number++;
1431 }
1432 }
1433
1434 static double psnr(double d){
1435 return -10.0*log(d)/log(10.0);
1436 }
1437
1438 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1439 int frame_size)
1440 {
1441 AVCodecContext *enc;
1442 int frame_number;
1443 double ti1, bitrate, avg_bitrate;
1444
1445 /* this is executed just the first time do_video_stats is called */
1446 if (!vstats_file) {
1447 vstats_file = fopen(vstats_filename, "w");
1448 if (!vstats_file) {
1449 perror("fopen");
1450 exit_program(1);
1451 }
1452 }
1453
1454 enc = ost->st->codec;
1455 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1456 frame_number = ost->frame_number;
1457 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1458 if (enc->flags&CODEC_FLAG_PSNR)
1459 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1460
1461 fprintf(vstats_file,"f_size= %6d ", frame_size);
1462 /* compute pts value */
1463 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1464 if (ti1 < 0.01)
1465 ti1 = 0.01;
1466
1467 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1468 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1469 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1470 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1471 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1472 }
1473 }
1474
1475 static void print_report(OutputFile *output_files,
1476 OutputStream *ost_table, int nb_ostreams,
1477 int is_last_report, int64_t timer_start)
1478 {
1479 char buf[1024];
1480 OutputStream *ost;
1481 AVFormatContext *oc;
1482 int64_t total_size;
1483 AVCodecContext *enc;
1484 int frame_number, vid, i;
1485 double bitrate, ti1, pts;
1486 static int64_t last_time = -1;
1487 static int qp_histogram[52];
1488
1489 if (!print_stats && !is_last_report)
1490 return;
1491
1492 if (!is_last_report) {
1493 int64_t cur_time;
1494 /* display the report every 0.5 seconds */
1495 cur_time = av_gettime();
1496 if (last_time == -1) {
1497 last_time = cur_time;
1498 return;
1499 }
1500 if ((cur_time - last_time) < 500000)
1501 return;
1502 last_time = cur_time;
1503 }
1504
1505
1506 oc = output_files[0].ctx;
1507
1508 total_size = avio_size(oc->pb);
1509 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1510 total_size= avio_tell(oc->pb);
1511
1512 buf[0] = '\0';
1513 ti1 = 1e10;
1514 vid = 0;
1515 for(i=0;i<nb_ostreams;i++) {
1516 float q = -1;
1517 ost = &ost_table[i];
1518 enc = ost->st->codec;
1519 if (!ost->stream_copy && enc->coded_frame)
1520 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1521 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1522 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1523 }
1524 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1525 float t = (av_gettime()-timer_start) / 1000000.0;
1526
1527 frame_number = ost->frame_number;
1528 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1529 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1530 if(is_last_report)
1531 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1532 if(qp_hist){
1533 int j;
1534 int qp = lrintf(q);
1535 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1536 qp_histogram[qp]++;
1537 for(j=0; j<32; j++)
1538 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1539 }
1540 if (enc->flags&CODEC_FLAG_PSNR){
1541 int j;
1542 double error, error_sum=0;
1543 double scale, scale_sum=0;
1544 char type[3]= {'Y','U','V'};
1545 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1546 for(j=0; j<3; j++){
1547 if(is_last_report){
1548 error= enc->error[j];
1549 scale= enc->width*enc->height*255.0*255.0*frame_number;
1550 }else{
1551 error= enc->coded_frame->error[j];
1552 scale= enc->width*enc->height*255.0*255.0;
1553 }
1554 if(j) scale/=4;
1555 error_sum += error;
1556 scale_sum += scale;
1557 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1558 }
1559 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1560 }
1561 vid = 1;
1562 }
1563 /* compute min output value */
1564 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1565 if ((pts < ti1) && (pts > 0))
1566 ti1 = pts;
1567 }
1568 if (ti1 < 0.01)
1569 ti1 = 0.01;
1570
1571 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1572
1573 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1574 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1575 (double)total_size / 1024, ti1, bitrate);
1576
1577 if (nb_frames_dup || nb_frames_drop)
1578 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1579 nb_frames_dup, nb_frames_drop);
1580
1581 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1582
1583 fflush(stderr);
1584
1585 if (is_last_report) {
1586 int64_t raw= audio_size + video_size + extra_size;
1587 av_log(NULL, AV_LOG_INFO, "\n");
1588 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1589 video_size/1024.0,
1590 audio_size/1024.0,
1591 extra_size/1024.0,
1592 100.0*(total_size - raw)/raw
1593 );
1594 }
1595 }
1596
1597 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1598 {
1599 int i, ret;
1600
1601 for (i = 0; i < nb_ostreams; i++) {
1602 OutputStream *ost = &ost_table[i];
1603 AVCodecContext *enc = ost->st->codec;
1604 AVFormatContext *os = output_files[ost->file_index].ctx;
1605
1606 if (!ost->encoding_needed)
1607 continue;
1608
1609 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1610 continue;
1611 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1612 continue;
1613
1614 for(;;) {
1615 AVPacket pkt;
1616 int fifo_bytes;
1617 av_init_packet(&pkt);
1618 pkt.stream_index= ost->index;
1619
1620 switch (ost->st->codec->codec_type) {
1621 case AVMEDIA_TYPE_AUDIO:
1622 fifo_bytes = av_fifo_size(ost->fifo);
1623 ret = 0;
1624 /* encode any samples remaining in fifo */
1625 if (fifo_bytes > 0) {
1626 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1627 int fs_tmp = enc->frame_size;
1628
1629 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1630 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1631 enc->frame_size = fifo_bytes / (osize * enc->channels);
1632 } else { /* pad */
1633 int frame_bytes = enc->frame_size*osize*enc->channels;
1634 if (allocated_audio_buf_size < frame_bytes)
1635 exit_program(1);
1636 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1637 }
1638
1639 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1640 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1641 ost->st->time_base.num, enc->sample_rate);
1642 enc->frame_size = fs_tmp;
1643 }
1644 if (ret <= 0) {
1645 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1646 }
1647 if (ret < 0) {
1648 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1649 exit_program(1);
1650 }
1651 audio_size += ret;
1652 pkt.flags |= AV_PKT_FLAG_KEY;
1653 break;
1654 case AVMEDIA_TYPE_VIDEO:
1655 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1656 if (ret < 0) {
1657 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1658 exit_program(1);
1659 }
1660 video_size += ret;
1661 if(enc->coded_frame && enc->coded_frame->key_frame)
1662 pkt.flags |= AV_PKT_FLAG_KEY;
1663 if (ost->logfile && enc->stats_out) {
1664 fprintf(ost->logfile, "%s", enc->stats_out);
1665 }
1666 break;
1667 default:
1668 ret=-1;
1669 }
1670
1671 if (ret <= 0)
1672 break;
1673 pkt.data = bit_buffer;
1674 pkt.size = ret;
1675 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1676 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1677 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1678 }
1679 }
1680 }
1681
1682 /*
1683 * Check whether a packet from ist should be written into ost at this time
1684 */
1685 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1686 {
1687 OutputFile *of = &output_files[ost->file_index];
1688 int ist_index = ist - input_streams;
1689
1690 if (ost->source_index != ist_index)
1691 return 0;
1692
1693 if (of->start_time && ist->pts < of->start_time)
1694 return 0;
1695
1696 if (of->recording_time != INT64_MAX &&
1697 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1698 (AVRational){1, 1000000}) >= 0) {
1699 ost->is_past_recording_time = 1;
1700 return 0;
1701 }
1702
1703 return 1;
1704 }
1705
1706 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1707 {
1708 OutputFile *of = &output_files[ost->file_index];
1709 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1710 AVPacket opkt;
1711
1712 av_init_packet(&opkt);
1713
1714 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1715 !ost->copy_initial_nonkeyframes)
1716 return;
1717
1718 /* force the input stream PTS */
1719 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1720 audio_size += pkt->size;
1721 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1722 video_size += pkt->size;
1723 ost->sync_opts++;
1724 }
1725
1726 opkt.stream_index = ost->index;
1727 if (pkt->pts != AV_NOPTS_VALUE)
1728 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1729 else
1730 opkt.pts = AV_NOPTS_VALUE;
1731
1732 if (pkt->dts == AV_NOPTS_VALUE)
1733 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1734 else
1735 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1736 opkt.dts -= ost_tb_start_time;
1737
1738 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1739 opkt.flags = pkt->flags;
1740
1741 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1742 if( ost->st->codec->codec_id != CODEC_ID_H264
1743 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1744 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1745 ) {
1746 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1747 opkt.destruct = av_destruct_packet;
1748 } else {
1749 opkt.data = pkt->data;
1750 opkt.size = pkt->size;
1751 }
1752
1753 write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
1754 ost->st->codec->frame_number++;
1755 ost->frame_number++;
1756 av_free_packet(&opkt);
1757 }
1758
1759 static void rate_emu_sleep(InputStream *ist)
1760 {
1761 if (input_files[ist->file_index].rate_emu) {
1762 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1763 int64_t now = av_gettime() - ist->start;
1764 if (pts > now)
1765 usleep(pts - now);
1766 }
1767 }
1768
1769 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1770 {
1771 AVFrame *decoded_frame;
1772 AVCodecContext *avctx = ist->st->codec;
1773 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1774 int i, ret;
1775
1776 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1777 return AVERROR(ENOMEM);
1778 else
1779 avcodec_get_frame_defaults(ist->decoded_frame);
1780 decoded_frame = ist->decoded_frame;
1781
1782 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1783 if (ret < 0) {
1784 return ret;
1785 }
1786
1787 if (!*got_output) {
1788 /* no audio frame */
1789 return ret;
1790 }
1791
1792 /* if the decoder provides a pts, use it instead of the last packet pts.
1793 the decoder could be delaying output by a packet or more. */
1794 if (decoded_frame->pts != AV_NOPTS_VALUE)
1795 ist->next_pts = decoded_frame->pts;
1796
1797 /* increment next_pts to use for the case where the input stream does not
1798 have timestamps or there are multiple frames in the packet */
1799 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1800 avctx->sample_rate;
1801
1802 // preprocess audio (volume)
1803 if (audio_volume != 256) {
1804 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1805 void *samples = decoded_frame->data[0];
1806 switch (avctx->sample_fmt) {
1807 case AV_SAMPLE_FMT_U8:
1808 {
1809 uint8_t *volp = samples;
1810 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1811 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1812 *volp++ = av_clip_uint8(v);
1813 }
1814 break;
1815 }
1816 case AV_SAMPLE_FMT_S16:
1817 {
1818 int16_t *volp = samples;
1819 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1820 int v = ((*volp) * audio_volume + 128) >> 8;
1821 *volp++ = av_clip_int16(v);
1822 }
1823 break;
1824 }
1825 case AV_SAMPLE_FMT_S32:
1826 {
1827 int32_t *volp = samples;
1828 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1829 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1830 *volp++ = av_clipl_int32(v);
1831 }
1832 break;
1833 }
1834 case AV_SAMPLE_FMT_FLT:
1835 {
1836 float *volp = samples;
1837 float scale = audio_volume / 256.f;
1838 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1839 *volp++ *= scale;
1840 }
1841 break;
1842 }
1843 case AV_SAMPLE_FMT_DBL:
1844 {
1845 double *volp = samples;
1846 double scale = audio_volume / 256.;
1847 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1848 *volp++ *= scale;
1849 }
1850 break;
1851 }
1852 default:
1853 av_log(NULL, AV_LOG_FATAL,
1854 "Audio volume adjustment on sample format %s is not supported.\n",
1855 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1856 exit_program(1);
1857 }
1858 }
1859
1860 rate_emu_sleep(ist);
1861
1862 for (i = 0; i < nb_output_streams; i++) {
1863 OutputStream *ost = &output_streams[i];
1864
1865 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1866 continue;
1867 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
1868 }
1869
1870 return ret;
1871 }
1872
1873 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1874 {
1875 AVFrame *decoded_frame, *filtered_frame = NULL;
1876 void *buffer_to_free = NULL;
1877 int i, ret = 0;
1878 float quality;
1879 #if CONFIG_AVFILTER
1880 int frame_available = 1;
1881 #endif
1882
1883 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1884 return AVERROR(ENOMEM);
1885 else
1886 avcodec_get_frame_defaults(ist->decoded_frame);
1887 decoded_frame = ist->decoded_frame;
1888 pkt->pts = *pkt_pts;
1889 pkt->dts = ist->pts;
1890 *pkt_pts = AV_NOPTS_VALUE;
1891
1892 ret = avcodec_decode_video2(ist->st->codec,
1893 decoded_frame, got_output, pkt);
1894 if (ret < 0)
1895 return ret;
1896
1897 quality = same_quant ? decoded_frame->quality : 0;
1898 if (!*got_output) {
1899 /* no picture yet */
1900 return ret;
1901 }
1902 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1903 decoded_frame->pkt_dts);
1904 if (pkt->duration)
1905 ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1906 else if (ist->st->codec->time_base.num != 0) {
1907 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1908 ist->st->codec->ticks_per_frame;
1909 ist->next_pts += ((int64_t)AV_TIME_BASE *
1910 ist->st->codec->time_base.num * ticks) /
1911 ist->st->codec->time_base.den;
1912 }
1913 pkt->size = 0;
1914 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1915
1916 rate_emu_sleep(ist);
1917
1918 for (i = 0; i < nb_output_streams; i++) {
1919 OutputStream *ost = &output_streams[i];
1920 int frame_size;
1921
1922 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1923 continue;
1924
1925 #if CONFIG_AVFILTER
1926 if (ist->st->sample_aspect_ratio.num)
1927 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1928 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1929 FrameBuffer *buf = decoded_frame->opaque;
1930 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1931 decoded_frame->data, decoded_frame->linesize,
1932 AV_PERM_READ | AV_PERM_PRESERVE,
1933 ist->st->codec->width, ist->st->codec->height,
1934 ist->st->codec->pix_fmt);
1935
1936 avfilter_copy_frame_props(fb, decoded_frame);
1937 fb->pts = ist->pts;
1938 fb->buf->priv = buf;
1939 fb->buf->free = filter_release_buffer;
1940
1941 buf->refcount++;
1942 av_buffersrc_buffer(ost->input_video_filter, fb);
1943 } else
1944 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
1945 ist->pts, decoded_frame->sample_aspect_ratio);
1946
1947 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1948 av_free(buffer_to_free);
1949 return AVERROR(ENOMEM);
1950 } else
1951 avcodec_get_frame_defaults(ist->filtered_frame);
1952 filtered_frame = ist->filtered_frame;
1953
1954 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1955 while (frame_available) {
1956 AVRational ist_pts_tb;
1957 if (ost->output_video_filter)
1958 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1959 if (ost->picref)
1960 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1961 if (ost->picref->video && !ost->frame_aspect_ratio)
1962 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1963 #else
1964 filtered_frame = decoded_frame;
1965 #endif
1966
1967 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
1968 same_quant ? quality : ost->st->codec->global_quality);
1969 if (vstats_filename && frame_size)
1970 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1971 #if CONFIG_AVFILTER
1972 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1973 if (ost->picref)
1974 avfilter_unref_buffer(ost->picref);
1975 }
1976 #endif
1977 }
1978
1979 av_free(buffer_to_free);
1980 return ret;
1981 }
1982
1983 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1984 {
1985 AVSubtitle subtitle;
1986 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1987 &subtitle, got_output, pkt);
1988 if (ret < 0)
1989 return ret;
1990 if (!*got_output)
1991 return ret;
1992
1993 rate_emu_sleep(ist);
1994
1995 for (i = 0; i < nb_output_streams; i++) {
1996 OutputStream *ost = &output_streams[i];
1997
1998 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1999 continue;
2000
2001 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2002 }
2003
2004 avsubtitle_free(&subtitle);
2005 return ret;
2006 }
2007
2008 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2009 static int output_packet(InputStream *ist,
2010 OutputStream *ost_table, int nb_ostreams,
2011 const AVPacket *pkt)
2012 {
2013 int i;
2014 int got_output;
2015 int64_t pkt_pts = AV_NOPTS_VALUE;
2016 AVPacket avpkt;
2017
2018 if (ist->next_pts == AV_NOPTS_VALUE)
2019 ist->next_pts = ist->pts;
2020
2021 if (pkt == NULL) {
2022 /* EOF handling */
2023 av_init_packet(&avpkt);
2024 avpkt.data = NULL;
2025 avpkt.size = 0;
2026 goto handle_eof;
2027 } else {
2028 avpkt = *pkt;
2029 }
2030
2031 if(pkt->dts != AV_NOPTS_VALUE)
2032 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2033 if(pkt->pts != AV_NOPTS_VALUE)
2034 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2035
2036 //while we have more to decode or while the decoder did output something on EOF
2037 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2038 int ret = 0;
2039 handle_eof:
2040
2041 ist->pts = ist->next_pts;
2042
2043 if (avpkt.size && avpkt.size != pkt->size) {
2044 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2045 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2046 ist->showed_multi_packet_warning = 1;
2047 }
2048
2049 switch(ist->st->codec->codec_type) {
2050 case AVMEDIA_TYPE_AUDIO:
2051 ret = transcode_audio (ist, &avpkt, &got_output);
2052 break;
2053 case AVMEDIA_TYPE_VIDEO:
2054 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2055 break;
2056 case AVMEDIA_TYPE_SUBTITLE:
2057 ret = transcode_subtitles(ist, &avpkt, &got_output);
2058 break;
2059 default:
2060 return -1;
2061 }
2062
2063 if (ret < 0)
2064 return ret;
2065 // touch data and size only if not EOF
2066 if (pkt) {
2067 avpkt.data += ret;
2068 avpkt.size -= ret;
2069 }
2070 if (!got_output) {
2071 continue;
2072 }
2073 }
2074
2075 /* handle stream copy */
2076 if (!ist->decoding_needed) {
2077 rate_emu_sleep(ist);
2078 ist->pts = ist->next_pts;
2079 switch (ist->st->codec->codec_type) {
2080 case AVMEDIA_TYPE_AUDIO:
2081 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2082 ist->st->codec->sample_rate;
2083 break;
2084 case AVMEDIA_TYPE_VIDEO:
2085 if (ist->st->codec->time_base.num != 0) {
2086 int ticks = ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
2087 ist->next_pts += ((int64_t)AV_TIME_BASE *
2088 ist->st->codec->time_base.num * ticks) /
2089 ist->st->codec->time_base.den;
2090 }
2091 break;
2092 }
2093 }
2094 for (i = 0; pkt && i < nb_ostreams; i++) {
2095 OutputStream *ost = &ost_table[i];
2096
2097 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2098 continue;
2099
2100 do_streamcopy(ist, ost, pkt);
2101 }
2102
2103 return 0;
2104 }
2105
2106 static void print_sdp(OutputFile *output_files, int n)
2107 {
2108 char sdp[2048];
2109 int i;
2110 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
2111
2112 if (!avc)
2113 exit_program(1);
2114 for (i = 0; i < n; i++)
2115 avc[i] = output_files[i].ctx;
2116
2117 av_sdp_create(avc, n, sdp, sizeof(sdp));
2118 printf("SDP:\n%s\n", sdp);
2119 fflush(stdout);
2120 av_freep(&avc);
2121 }
2122
2123 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2124 char *error, int error_len)
2125 {
2126 int i;
2127 InputStream *ist = &input_streams[ist_index];
2128 if (ist->decoding_needed) {
2129 AVCodec *codec = ist->dec;
2130 if (!codec) {
2131 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2132 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2133 return AVERROR(EINVAL);
2134 }
2135
2136 /* update requested sample format for the decoder based on the
2137 corresponding encoder sample format */
2138 for (i = 0; i < nb_output_streams; i++) {
2139 OutputStream *ost = &output_streams[i];
2140 if (ost->source_index == ist_index) {
2141 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2142 break;
2143 }
2144 }
2145
2146 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2147 ist->st->codec->get_buffer = codec_get_buffer;
2148 ist->st->codec->release_buffer = codec_release_buffer;
2149 ist->st->codec->opaque = ist;
2150 }
2151
2152 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2153 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2154 ist->file_index, ist->st->index);
2155 return AVERROR(EINVAL);
2156 }
2157 assert_codec_experimental(ist->st->codec, 0);
2158 assert_avoptions(ist->opts);
2159 }
2160
2161 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;
2162 ist->next_pts = AV_NOPTS_VALUE;
2163 init_pts_correction(&ist->pts_ctx);
2164 ist->is_start = 1;
2165
2166 return 0;
2167 }
2168
2169 static int transcode_init(OutputFile *output_files,
2170 int nb_output_files,
2171 InputFile *input_files,
2172 int nb_input_files)
2173 {
2174 int ret = 0, i, j, k;
2175 AVFormatContext *oc;
2176 AVCodecContext *codec, *icodec;
2177 OutputStream *ost;
2178 InputStream *ist;
2179 char error[1024];
2180 int want_sdp = 1;
2181
2182 /* init framerate emulation */
2183 for (i = 0; i < nb_input_files; i++) {
2184 InputFile *ifile = &input_files[i];
2185 if (ifile->rate_emu)
2186 for (j = 0; j < ifile->nb_streams; j++)
2187 input_streams[j + ifile->ist_index].start = av_gettime();
2188 }
2189
2190 /* output stream init */
2191 for (i = 0; i < nb_output_files; i++) {
2192 oc = output_files[i].ctx;
2193 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2194 av_dump_format(oc, i, oc->filename, 1);
2195 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2196 return AVERROR(EINVAL);
2197 }
2198 }
2199
2200 /* for each output stream, we compute the right encoding parameters */
2201 for (i = 0; i < nb_output_streams; i++) {
2202 ost = &output_streams[i];
2203 oc = output_files[ost->file_index].ctx;
2204 ist = &input_streams[ost->source_index];
2205
2206 if (ost->attachment_filename)
2207 continue;
2208
2209 codec = ost->st->codec;
2210 icodec = ist->st->codec;
2211
2212 ost->st->disposition = ist->st->disposition;
2213 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2214 codec->chroma_sample_location = icodec->chroma_sample_location;
2215
2216 if (ost->stream_copy) {
2217 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2218
2219 if (extra_size > INT_MAX) {
2220 return AVERROR(EINVAL);
2221 }
2222
2223 /* if stream_copy is selected, no need to decode or encode */
2224 codec->codec_id = icodec->codec_id;
2225 codec->codec_type = icodec->codec_type;
2226
2227 if (!codec->codec_tag) {
2228 if (!oc->oformat->codec_tag ||
2229 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2230 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2231 codec->codec_tag = icodec->codec_tag;
2232 }
2233
2234 codec->bit_rate = icodec->bit_rate;
2235 codec->rc_max_rate = icodec->rc_max_rate;
2236 codec->rc_buffer_size = icodec->rc_buffer_size;
2237 codec->field_order = icodec->field_order;
2238 codec->extradata = av_mallocz(extra_size);
2239 if (!codec->extradata) {
2240 return AVERROR(ENOMEM);
2241 }
2242 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2243 codec->extradata_size = icodec->extradata_size;
2244 if (!copy_tb) {
2245 codec->time_base = icodec->time_base;
2246 codec->time_base.num *= icodec->ticks_per_frame;
2247 av_reduce(&codec->time_base.num, &codec->time_base.den,
2248 codec->time_base.num, codec->time_base.den, INT_MAX);
2249 } else
2250 codec->time_base = ist->st->time_base;
2251
2252 switch(codec->codec_type) {
2253 case AVMEDIA_TYPE_AUDIO:
2254 if(audio_volume != 256) {
2255 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2256 exit_program(1);
2257 }
2258 codec->channel_layout = icodec->channel_layout;
2259 codec->sample_rate = icodec->sample_rate;
2260 codec->channels = icodec->channels;
2261 codec->frame_size = icodec->frame_size;
2262 codec->audio_service_type = icodec->audio_service_type;
2263 codec->block_align = icodec->block_align;
2264 break;
2265 case AVMEDIA_TYPE_VIDEO:
2266 codec->pix_fmt = icodec->pix_fmt;
2267 codec->width = icodec->width;
2268 codec->height = icodec->height;
2269 codec->has_b_frames = icodec->has_b_frames;
2270 if (!codec->sample_aspect_ratio.num) {
2271 codec->sample_aspect_ratio =
2272 ost->st->sample_aspect_ratio =
2273 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2274 ist->st->codec->sample_aspect_ratio.num ?
2275 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2276 }
2277 break;
2278 case AVMEDIA_TYPE_SUBTITLE:
2279 codec->width = icodec->width;
2280 codec->height = icodec->height;
2281 break;
2282 case AVMEDIA_TYPE_DATA:
2283 case AVMEDIA_TYPE_ATTACHMENT:
2284 break;
2285 default:
2286 abort();
2287 }
2288 } else {
2289 if (!ost->enc)
2290 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2291
2292 ist->decoding_needed = 1;
2293 ost->encoding_needed = 1;
2294
2295 switch(codec->codec_type) {
2296 case AVMEDIA_TYPE_AUDIO:
2297 ost->fifo = av_fifo_alloc(1024);
2298 if (!ost->fifo) {
2299 return AVERROR(ENOMEM);
2300 }
2301 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2302
2303 if (!codec->sample_rate)
2304 codec->sample_rate = icodec->sample_rate;
2305 choose_sample_rate(ost->st, ost->enc);
2306 codec->time_base = (AVRational){1, codec->sample_rate};
2307
2308 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2309 codec->sample_fmt = icodec->sample_fmt;
2310 choose_sample_fmt(ost->st, ost->enc);
2311
2312 if (!codec->channels)
2313 codec->channels = icodec->channels;
2314 codec->channel_layout = icodec->channel_layout;
2315 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2316 codec->channel_layout = 0;
2317
2318 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2319 icodec->request_channels = codec-> channels;
2320 ost->resample_sample_fmt = icodec->sample_fmt;
2321 ost->resample_sample_rate = icodec->sample_rate;
2322 ost->resample_channels = icodec->channels;
2323 break;
2324 case AVMEDIA_TYPE_VIDEO:
2325 if (codec->pix_fmt == PIX_FMT_NONE)
2326 codec->pix_fmt = icodec->pix_fmt;
2327 choose_pixel_fmt(ost->st, ost->enc);
2328
2329 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2330 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2331 exit_program(1);
2332 }
2333
2334 if (!codec->width || !codec->height) {
2335 codec->width = icodec->width;
2336 codec->height = icodec->height;
2337 }
2338
2339 ost->video_resample = codec->width != icodec->width ||
2340 codec->height != icodec->height ||
2341 codec->pix_fmt != icodec->pix_fmt;
2342 if (ost->video_resample) {
2343 #if !CONFIG_AVFILTER
2344 avcodec_get_frame_defaults(&ost->pict_tmp);
2345 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2346 codec->width, codec->height)) {
2347 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2348 exit_program(1);
2349 }
2350 ost->img_resample_ctx = sws_getContext(
2351 icodec->width,
2352 icodec->height,
2353 icodec->pix_fmt,
2354 codec->width,
2355 codec->height,
2356 codec->pix_fmt,
2357 ost->sws_flags, NULL, NULL, NULL);
2358 if (ost->img_resample_ctx == NULL) {
2359 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2360 exit_program(1);
2361 }
2362 #endif
2363 codec->bits_per_raw_sample= 0;
2364 }
2365
2366 ost->resample_height = icodec->height;
2367 ost->resample_width = icodec->width;
2368 ost->resample_pix_fmt = icodec->pix_fmt;
2369
2370 if (!ost->frame_rate.num)
2371 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2372 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2373 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2374 ost->frame_rate = ost->enc->supported_framerates[idx];
2375 }
2376 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2377
2378 #if CONFIG_AVFILTER
2379 if (configure_video_filters(ist, ost)) {
2380 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2381 exit(1);
2382 }
2383 #endif
2384 break;
2385 case AVMEDIA_TYPE_SUBTITLE:
2386 break;
2387 default:
2388 abort();
2389 break;
2390 }
2391 /* two pass mode */
2392 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2393 char logfilename[1024];
2394 FILE *f;
2395
2396 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2397 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2398 i);
2399 if (codec->flags & CODEC_FLAG_PASS1) {
2400 f = fopen(logfilename, "wb");
2401 if (!f) {
2402 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2403 logfilename, strerror(errno));
2404 exit_program(1);
2405 }
2406 ost->logfile = f;
2407 } else {
2408 char *logbuffer;
2409 size_t logbuffer_size;
2410 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2411 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2412 logfilename);
2413 exit_program(1);
2414 }
2415 codec->stats_in = logbuffer;
2416 }
2417 }
2418 }
2419 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2420 int size = codec->width * codec->height;
2421 bit_buffer_size = FFMAX(bit_buffer_size, 6*size + 200);
2422 }
2423 }
2424
2425 if (!bit_buffer)
2426 bit_buffer = av_malloc(bit_buffer_size);
2427 if (!bit_buffer) {
2428 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2429 bit_buffer_size);
2430 return AVERROR(ENOMEM);
2431 }
2432
2433 /* open each encoder */
2434 for (i = 0; i < nb_output_streams; i++) {
2435 ost = &output_streams[i];
2436 if (ost->encoding_needed) {
2437 AVCodec *codec = ost->enc;
2438 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2439 if (!codec) {
2440 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2441 ost->st->codec->codec_id, ost->file_index, ost->index);
2442 ret = AVERROR(EINVAL);
2443 goto dump_format;
2444 }
2445 if (dec->subtitle_header) {
2446 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2447 if (!ost->st->codec->subtitle_header) {
2448 ret = AVERROR(ENOMEM);
2449 goto dump_format;
2450 }
2451 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2452 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2453 }
2454 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2455 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2456 ost->file_index, ost->index);
2457 ret = AVERROR(EINVAL);
2458 goto dump_format;
2459 }
2460 assert_codec_experimental(ost->st->codec, 1);
2461 assert_avoptions(ost->opts);
2462 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2463 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2464 "It takes bits/s as argument, not kbits/s\n");
2465 extra_size += ost->st->codec->extradata_size;
2466
2467 if (ost->st->codec->me_threshold)
2468 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2469 }
2470 }
2471
2472 /* init input streams */
2473 for (i = 0; i < nb_input_streams; i++)
2474 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2475 goto dump_format;
2476
2477 /* discard unused programs */
2478 for (i = 0; i < nb_input_files; i++) {
2479 InputFile *ifile = &input_files[i];
2480 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2481 AVProgram *p = ifile->ctx->programs[j];
2482 int discard = AVDISCARD_ALL;
2483
2484 for (k = 0; k < p->nb_stream_indexes; k++)
2485 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2486 discard = AVDISCARD_DEFAULT;
2487 break;
2488 }
2489 p->discard = discard;
2490 }
2491 }
2492
2493 /* open files and write file headers */
2494 for (i = 0; i < nb_output_files; i++) {
2495 oc = output_files[i].ctx;
2496 oc->interrupt_callback = int_cb;
2497 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2498 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2499 ret = AVERROR(EINVAL);
2500 goto dump_format;
2501 }
2502 assert_avoptions(output_files[i].opts);
2503 if (strcmp(oc->oformat->name, "rtp")) {
2504 want_sdp = 0;
2505 }
2506 }
2507
2508 dump_format:
2509 /* dump the file output parameters - cannot be done before in case
2510 of stream copy */
2511 for (i = 0; i < nb_output_files; i++) {
2512 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2513 }
2514
2515 /* dump the stream mapping */
2516 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2517 for (i = 0; i < nb_output_streams; i++) {
2518 ost = &output_streams[i];
2519
2520 if (ost->attachment_filename) {
2521 /* an attached file */
2522 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2523 ost->attachment_filename, ost->file_index, ost->index);
2524 continue;
2525 }
2526 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2527 input_streams[ost->source_index].file_index,
2528 input_streams[ost->source_index].st->index,
2529 ost->file_index,
2530 ost->index);
2531 if (ost->sync_ist != &input_streams[ost->source_index])
2532 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2533 ost->sync_ist->file_index,
2534 ost->sync_ist->st->index);
2535 if (ost->stream_copy)
2536 av_log(NULL, AV_LOG_INFO, " (copy)");
2537 else
2538 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2539 input_streams[ost->source_index].dec->name : "?",
2540 ost->enc ? ost->enc->name : "?");
2541 av_log(NULL, AV_LOG_INFO, "\n");
2542 }
2543
2544 if (ret) {
2545 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2546 return ret;
2547 }
2548
2549 if (want_sdp) {
2550 print_sdp(output_files, nb_output_files);
2551 }
2552
2553 return 0;
2554 }
2555
2556 /*
2557 * The following code is the main loop of the file converter
2558 */
2559 static int transcode(OutputFile *output_files,
2560 int nb_output_files,
2561 InputFile *input_files,
2562 int nb_input_files)
2563 {
2564 int ret, i;
2565 AVFormatContext *is, *os;
2566 OutputStream *ost;
2567 InputStream *ist;
2568 uint8_t *no_packet;
2569 int no_packet_count=0;
2570 int64_t timer_start;
2571
2572 if (!(no_packet = av_mallocz(nb_input_files)))
2573 exit_program(1);
2574
2575 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2576 if (ret < 0)
2577 goto fail;
2578
2579 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2580 term_init();
2581
2582 timer_start = av_gettime();
2583
2584 for(; received_sigterm == 0;) {
2585 int file_index, ist_index;
2586 AVPacket pkt;
2587 int64_t ipts_min;
2588 double opts_min;
2589
2590 ipts_min = INT64_MAX;
2591 opts_min= 1e100;
2592
2593 /* select the stream that we must read now by looking at the
2594 smallest output pts */
2595 file_index = -1;
2596 for (i = 0; i < nb_output_streams; i++) {
2597 OutputFile *of;
2598 int64_t ipts;
2599 double opts;
2600 ost = &output_streams[i];
2601 of = &output_files[ost->file_index];
2602 os = output_files[ost->file_index].ctx;
2603 ist = &input_streams[ost->source_index];
2604 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2605 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2606 continue;
2607 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2608 ipts = ist->pts;
2609 if (!input_files[ist->file_index].eof_reached){
2610 if(ipts < ipts_min) {
2611 ipts_min = ipts;
2612 if(input_sync ) file_index = ist->file_index;
2613 }
2614 if(opts < opts_min) {
2615 opts_min = opts;
2616 if(!input_sync) file_index = ist->file_index;
2617 }
2618 }
2619 if (ost->frame_number >= ost->max_frames) {
2620 int j;
2621 for (j = 0; j < of->ctx->nb_streams; j++)
2622 output_streams[of->ost_index + j].is_past_recording_time = 1;
2623 continue;
2624 }
2625 }
2626 /* if none, if is finished */
2627 if (file_index < 0) {
2628 if(no_packet_count){
2629 no_packet_count=0;
2630 memset(no_packet, 0, nb_input_files);
2631 usleep(10000);
2632 continue;
2633 }
2634 break;
2635 }
2636
2637 /* read a frame from it and output it in the fifo */
2638 is = input_files[file_index].ctx;
2639 ret= av_read_frame(is, &pkt);
2640 if(ret == AVERROR(EAGAIN)){
2641 no_packet[file_index]=1;
2642 no_packet_count++;
2643 continue;
2644 }
2645 if (ret < 0) {
2646 input_files[file_index].eof_reached = 1;
2647 if (opt_shortest)
2648 break;
2649 else
2650 continue;
2651 }
2652
2653 no_packet_count=0;
2654 memset(no_packet, 0, nb_input_files);
2655
2656 if (do_pkt_dump) {
2657 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2658 is->streams[pkt.stream_index]);
2659 }
2660 /* the following test is needed in case new streams appear
2661 dynamically in stream : we ignore them */
2662 if (pkt.stream_index >= input_files[file_index].nb_streams)
2663 goto discard_packet;
2664 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2665 ist = &input_streams[ist_index];
2666 if (ist->discard)
2667 goto discard_packet;
2668
2669 if (pkt.dts != AV_NOPTS_VALUE)
2670 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2671 if (pkt.pts != AV_NOPTS_VALUE)
2672 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2673
2674 if(pkt.pts != AV_NOPTS_VALUE)
2675 pkt.pts *= ist->ts_scale;
2676 if(pkt.dts != AV_NOPTS_VALUE)
2677 pkt.dts *= ist->ts_scale;
2678
2679 // 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);
2680 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2681 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2682 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2683 int64_t delta= pkt_dts - ist->next_pts;
2684 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2685 input_files[ist->file_index].ts_offset -= delta;
2686 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2687 delta, input_files[ist->file_index].ts_offset);
2688 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2689 if(pkt.pts != AV_NOPTS_VALUE)
2690 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2691 }
2692 }
2693
2694 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2695 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2696
2697 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2698 ist->file_index, ist->st->index);
2699 if (exit_on_error)
2700 exit_program(1);
2701 av_free_packet(&pkt);
2702 continue;
2703 }
2704
2705 discard_packet:
2706 av_free_packet(&pkt);
2707
2708 /* dump report by using the output first video and audio streams */
2709 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2710 }
2711
2712 /* at the end of stream, we must flush the decoder buffers */
2713 for (i = 0; i < nb_input_streams; i++) {
2714 ist = &input_streams[i];
2715 if (ist->decoding_needed) {
2716 output_packet(ist, output_streams, nb_output_streams, NULL);
2717 }
2718 }
2719 flush_encoders(output_streams, nb_output_streams);
2720
2721 term_exit();
2722
2723 /* write the trailer if needed and close file */
2724 for(i=0;i<nb_output_files;i++) {
2725 os = output_files[i].ctx;
2726 av_write_trailer(os);
2727 }
2728
2729 /* dump report by using the first video and audio streams */
2730 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2731
2732 /* close each encoder */
2733 for (i = 0; i < nb_output_streams; i++) {
2734 ost = &output_streams[i];
2735 if (ost->encoding_needed) {
2736 av_freep(&ost->st->codec->stats_in);
2737 avcodec_close(ost->st->codec);
2738 }
2739 #if CONFIG_AVFILTER
2740 avfilter_graph_free(&ost->graph);
2741 #endif
2742 }
2743
2744 /* close each decoder */
2745 for (i = 0; i < nb_input_streams; i++) {
2746 ist = &input_streams[i];
2747 if (ist->decoding_needed) {
2748 avcodec_close(ist->st->codec);
2749 }
2750 }
2751
2752 /* finished ! */
2753 ret = 0;
2754
2755 fail:
2756 av_freep(&bit_buffer);
2757 av_freep(&no_packet);
2758
2759 if (output_streams) {
2760 for (i = 0; i < nb_output_streams; i++) {
2761 ost = &output_streams[i];
2762 if (ost) {
2763 if (ost->stream_copy)
2764 av_freep(&ost->st->codec->extradata);
2765 if (ost->logfile) {
2766 fclose(ost->logfile);
2767 ost->logfile = NULL;
2768 }
2769 av_fifo_free(ost->fifo); /* works even if fifo is not
2770 initialized but set to zero */
2771 av_freep(&ost->st->codec->subtitle_header);
2772 av_free(ost->pict_tmp.data[0]);
2773 av_free(ost->forced_kf_pts);
2774 if (ost->video_resample)
2775 sws_freeContext(ost->img_resample_ctx);
2776 if (ost->resample)
2777 audio_resample_close(ost->resample);
2778 if (ost->reformat_ctx)
2779 av_audio_convert_free(ost->reformat_ctx);
2780 av_dict_free(&ost->opts);
2781 }
2782 }
2783 }
2784 return ret;
2785 }
2786
2787 static double parse_frame_aspect_ratio(const char *arg)
2788 {
2789 int x = 0, y = 0;
2790 double ar = 0;
2791 const char *p;
2792 char *end;
2793
2794 p = strchr(arg, ':');
2795 if (p) {
2796 x = strtol(arg, &end, 10);
2797 if (end == p)
2798 y = strtol(end+1, &end, 10);
2799 if (x > 0 && y > 0)
2800 ar = (double)x / (double)y;
2801 } else
2802 ar = strtod(arg, NULL);
2803
2804 if (!ar) {
2805 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2806 exit_program(1);
2807 }
2808 return ar;
2809 }
2810
2811 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2812 {
2813 return parse_option(o, "codec:a", arg, options);
2814 }
2815
2816 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2817 {
2818 return parse_option(o, "codec:v", arg, options);
2819 }
2820
2821 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2822 {
2823 return parse_option(o, "codec:s", arg, options);
2824 }
2825
2826 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2827 {
2828 return parse_option(o, "codec:d", arg, options);
2829 }
2830
2831 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2832 {
2833 StreamMap *m = NULL;
2834 int i, negative = 0, file_idx;
2835 int sync_file_idx = -1, sync_stream_idx;
2836 char *p, *sync;
2837 char *map;
2838
2839 if (*arg == '-') {
2840 negative = 1;
2841 arg++;
2842 }
2843 map = av_strdup(arg);
2844
2845 /* parse sync stream first, just pick first matching stream */
2846 if (sync = strchr(map, ',')) {
2847 *sync = 0;
2848 sync_file_idx = strtol(sync + 1, &sync, 0);
2849 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2850 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2851 exit_program(1);
2852 }
2853 if (*sync)
2854 sync++;
2855 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2856 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2857 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2858 sync_stream_idx = i;
2859 break;
2860 }
2861 if (i == input_files[sync_file_idx].nb_streams) {
2862 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2863 "match any streams.\n", arg);
2864 exit_program(1);
2865 }
2866 }
2867
2868
2869 file_idx = strtol(map, &p, 0);
2870 if (file_idx >= nb_input_files || file_idx < 0) {
2871 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2872 exit_program(1);
2873 }
2874 if (negative)
2875 /* disable some already defined maps */
2876 for (i = 0; i < o->nb_stream_maps; i++) {
2877 m = &o->stream_maps[i];
2878 if (file_idx == m->file_index &&
2879 check_stream_specifier(input_files[m->file_index].ctx,
2880 input_files[m->file_index].ctx->streams[m->stream_index],
2881 *p == ':' ? p + 1 : p) > 0)
2882 m->disabled = 1;
2883 }
2884 else
2885 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2886 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2887 *p == ':' ? p + 1 : p) <= 0)
2888 continue;
2889 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2890 &o->nb_stream_maps, o->nb_stream_maps + 1);
2891 m = &o->stream_maps[o->nb_stream_maps - 1];
2892
2893 m->file_index = file_idx;
2894 m->stream_index = i;
2895
2896 if (sync_file_idx >= 0) {
2897 m->sync_file_index = sync_file_idx;
2898 m->sync_stream_index = sync_stream_idx;
2899 } else {
2900 m->sync_file_index = file_idx;
2901 m->sync_stream_index = i;
2902 }
2903 }
2904
2905 if (!m) {
2906 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2907 exit_program(1);
2908 }
2909
2910 av_freep(&map);
2911 return 0;
2912 }
2913
2914 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2915 {
2916 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2917 &o->nb_attachments, o->nb_attachments + 1);
2918 o->attachments[o->nb_attachments - 1] = arg;
2919 return 0;
2920 }
2921
2922 /**
2923 * Parse a metadata specifier in arg.
2924 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2925 * @param index for type c/p, chapter/program index is written here
2926 * @param stream_spec for type s, the stream specifier is written here
2927 */
2928 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2929 {
2930 if (*arg) {
2931 *type = *arg;
2932 switch (*arg) {
2933 case 'g':
2934 break;
2935 case 's':
2936 if (*(++arg) && *arg != ':') {
2937 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2938 exit_program(1);
2939 }
2940 *stream_spec = *arg == ':' ? arg + 1 : "";
2941 break;
2942 case 'c':
2943 case 'p':
2944 if (*(++arg) == ':')
2945 *index = strtol(++arg, NULL, 0);
2946 break;
2947 default:
2948 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2949 exit_program(1);
2950 }
2951 } else
2952 *type = 'g';
2953 }
2954
2955 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
2956 {
2957 AVDictionary **meta_in = NULL;
2958 AVDictionary **meta_out;
2959 int i, ret = 0;
2960 char type_in, type_out;
2961 const char *istream_spec = NULL, *ostream_spec = NULL;
2962 int idx_in = 0, idx_out = 0;
2963
2964 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
2965 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
2966
2967 if (type_in == 'g' || type_out == 'g')
2968 o->metadata_global_manual = 1;
2969 if (type_in == 's' || type_out == 's')
2970 o->metadata_streams_manual = 1;
2971 if (type_in == 'c' || type_out == 'c')
2972 o->metadata_chapters_manual = 1;
2973
2974 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2975 if ((index) < 0 || (index) >= (nb_elems)) {\
2976 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
2977 (desc), (index));\
2978 exit_program(1);\
2979 }
2980
2981 #define SET_DICT(type, meta, context, index)\
2982 switch (type) {\
2983 case 'g':\
2984 meta = &context->metadata;\
2985 break;\
2986 case 'c':\
2987 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
2988 meta = &context->chapters[index]->metadata;\
2989 break;\
2990 case 'p':\
2991 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
2992 meta = &context->programs[index]->metadata;\
2993 break;\
2994 }\
2995
2996 SET_DICT(type_in, meta_in, ic, idx_in);
2997 SET_DICT(type_out, meta_out, oc, idx_out);
2998
2999 /* for input streams choose first matching stream */
3000 if (type_in == 's') {
3001 for (i = 0; i < ic->nb_streams; i++) {
3002 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3003 meta_in = &ic->streams[i]->metadata;
3004 break;
3005 } else if (ret < 0)
3006 exit_program(1);
3007 }
3008 if (!meta_in) {
3009 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3010 exit_program(1);
3011 }
3012 }
3013
3014 if (type_out == 's') {
3015 for (i = 0; i < oc->nb_streams; i++) {
3016 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3017 meta_out = &oc->streams[i]->metadata;
3018 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3019 } else if (ret < 0)
3020 exit_program(1);
3021 }
3022 } else
3023 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3024
3025 return 0;
3026 }
3027
3028 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3029 {
3030 const char *codec_string = encoder ? "encoder" : "decoder";
3031 AVCodec *codec;
3032
3033 codec = encoder ?
3034 avcodec_find_encoder_by_name(name) :
3035 avcodec_find_decoder_by_name(name);
3036 if(!codec) {
3037 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3038 exit_program(1);
3039 }
3040 if(codec->type != type) {
3041 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3042 exit_program(1);
3043 }
3044 return codec;
3045 }
3046
3047 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3048 {
3049 char *codec_name = NULL;
3050
3051 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3052 if (codec_name) {
3053 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3054 st->codec->codec_id = codec->id;
3055 return codec;
3056 } else
3057 return avcodec_find_decoder(st->codec->codec_id);
3058 }
3059
3060 /**
3061 * Add all the streams from the given input file to the global
3062 * list of input streams.
3063 */
3064 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3065 {
3066 int i, rfps, rfps_base;
3067
3068 for (i = 0; i < ic->nb_streams; i++) {
3069 AVStream *st = ic->streams[i];
3070 AVCodecContext *dec = st->codec;
3071 InputStream *ist;
3072
3073 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3074 ist = &input_streams[nb_input_streams - 1];
3075 ist->st = st;
3076 ist->file_index = nb_input_files;
3077 ist->discard = 1;
3078 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3079
3080 ist->ts_scale = 1.0;
3081 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3082
3083 ist->dec = choose_decoder(o, ic, st);
3084
3085 switch (dec->codec_type) {
3086 case AVMEDIA_TYPE_AUDIO:
3087 if (o->audio_disable)
3088 st->discard= AVDISCARD_ALL;
3089 break;
3090 case AVMEDIA_TYPE_VIDEO:
3091 rfps = ic->streams[i]->r_frame_rate.num;
3092 rfps_base = ic->streams[i]->r_frame_rate.den;
3093 if (dec->lowres) {
3094 dec->flags |= CODEC_FLAG_EMU_EDGE;
3095 dec->height >>= dec->lowres;
3096 dec->width >>= dec->lowres;
3097 }
3098
3099 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3100
3101 av_log(NULL, AV_LOG_INFO,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3102 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3103 (float)rfps / rfps_base, rfps, rfps_base);
3104 }
3105
3106 if (o->video_disable)
3107 st->discard= AVDISCARD_ALL;
3108 else if(video_discard)
3109 st->discard= video_discard;
3110 break;
3111 case AVMEDIA_TYPE_DATA:
3112 break;
3113 case AVMEDIA_TYPE_SUBTITLE:
3114 if (o->subtitle_disable)
3115 st->discard = AVDISCARD_ALL;
3116 break;
3117 case AVMEDIA_TYPE_ATTACHMENT:
3118 case AVMEDIA_TYPE_UNKNOWN:
3119 break;
3120 default:
3121 abort();
3122 }
3123 }
3124 }
3125
3126 static void assert_file_overwrite(const char *filename)
3127 {
3128 if (!file_overwrite &&
3129 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3130 av_strstart(filename, "file:", NULL))) {
3131 if (avio_check(filename, 0) == 0) {
3132 if (!using_stdin) {
3133 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3134 fflush(stderr);
3135 if (!read_yesno()) {
3136 fprintf(stderr, "Not overwriting - exiting\n");
3137 exit_program(1);
3138 }
3139 }
3140 else {
3141 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3142 exit_program(1);
3143 }
3144 }
3145 }
3146 }
3147
3148 static void dump_attachment(AVStream *st, const char *filename)
3149 {
3150 int ret;
3151 AVIOContext *out = NULL;
3152 AVDictionaryEntry *e;
3153
3154 if (!st->codec->extradata_size) {
3155 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3156 nb_input_files - 1, st->index);
3157 return;
3158 }
3159 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3160 filename = e->value;
3161 if (!*filename) {
3162 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3163 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3164 exit_program(1);
3165 }
3166
3167 assert_file_overwrite(filename);
3168
3169 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3170 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3171 filename);
3172 exit_program(1);
3173 }
3174
3175 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3176 avio_flush(out);
3177 avio_close(out);
3178 }
3179
3180 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3181 {
3182 AVFormatContext *ic;
3183 AVInputFormat *file_iformat = NULL;
3184 int err, i, ret;
3185 int64_t timestamp;
3186 uint8_t buf[128];
3187 AVDictionary **opts;
3188 int orig_nb_streams; // number of streams before avformat_find_stream_info
3189
3190 if (o->format) {
3191 if (!(file_iformat = av_find_input_format(o->format))) {
3192 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3193 exit_program(1);
3194 }
3195 }
3196
3197 if (!strcmp(filename, "-"))
3198 filename = "pipe:";
3199