fate: drop pointless _audio and _video suffixes from xan tests
[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,
822 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
823 }
824 }
825 for (; *p != PIX_FMT_NONE; p++) {
826 if (*p == st->codec->pix_fmt)
827 break;
828 }
829 if (*p == PIX_FMT_NONE) {
830 if (st->codec->pix_fmt != PIX_FMT_NONE)
831 av_log(NULL, AV_LOG_WARNING,
832 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
833 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
834 codec->name,
835 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
836 st->codec->pix_fmt = codec->pix_fmts[0];
837 }
838 }
839 }
840
841 static double
842 get_sync_ipts(const OutputStream *ost)
843 {
844 const InputStream *ist = ost->sync_ist;
845 OutputFile *of = &output_files[ost->file_index];
846 return (double)(ist->pts - of->start_time) / AV_TIME_BASE;
847 }
848
849 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc)
850 {
851 int ret;
852
853 while (bsfc) {
854 AVPacket new_pkt = *pkt;
855 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
856 &new_pkt.data, &new_pkt.size,
857 pkt->data, pkt->size,
858 pkt->flags & AV_PKT_FLAG_KEY);
859 if (a > 0) {
860 av_free_packet(pkt);
861 new_pkt.destruct = av_destruct_packet;
862 } else if (a < 0) {
863 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
864 bsfc->filter->name, pkt->stream_index,
865 avctx->codec ? avctx->codec->name : "copy");
866 print_error("", a);
867 if (exit_on_error)
868 exit_program(1);
869 }
870 *pkt = new_pkt;
871
872 bsfc = bsfc->next;
873 }
874
875 ret = av_interleaved_write_frame(s, pkt);
876 if (ret < 0) {
877 print_error("av_interleaved_write_frame()", ret);
878 exit_program(1);
879 }
880 }
881
882 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
883 {
884 int fill_char = 0x00;
885 if (sample_fmt == AV_SAMPLE_FMT_U8)
886 fill_char = 0x80;
887 memset(buf, fill_char, size);
888 }
889
890 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
891 InputStream *ist, AVFrame *decoded_frame)
892 {
893 uint8_t *buftmp;
894 int64_t audio_out_size, audio_buf_size;
895
896 int size_out, frame_bytes, ret, resample_changed;
897 AVCodecContext *enc = ost->st->codec;
898 AVCodecContext *dec = ist->st->codec;
899 int osize = av_get_bytes_per_sample(enc->sample_fmt);
900 int isize = av_get_bytes_per_sample(dec->sample_fmt);
901 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
902 uint8_t *buf = decoded_frame->data[0];
903 int size = decoded_frame->nb_samples * dec->channels * isize;
904 int64_t allocated_for_size = size;
905
906 need_realloc:
907 audio_buf_size = (allocated_for_size + isize * dec->channels - 1) / (isize * dec->channels);
908 audio_buf_size = (audio_buf_size * enc->sample_rate + dec->sample_rate) / dec->sample_rate;
909 audio_buf_size = audio_buf_size * 2 + 10000; // safety factors for the deprecated resampling API
910 audio_buf_size = FFMAX(audio_buf_size, enc->frame_size);
911 audio_buf_size *= osize * enc->channels;
912
913 audio_out_size = FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
914 if (coded_bps > 8 * osize)
915 audio_out_size = audio_out_size * coded_bps / (8*osize);
916 audio_out_size += FF_MIN_BUFFER_SIZE;
917
918 if (audio_out_size > INT_MAX || audio_buf_size > INT_MAX) {
919 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
920 exit_program(1);
921 }
922
923 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
924 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
925 if (!audio_buf || !audio_out) {
926 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
927 exit_program(1);
928 }
929
930 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
931 ost->audio_resample = 1;
932
933 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
934 ost->resample_channels != dec->channels ||
935 ost->resample_sample_rate != dec->sample_rate;
936
937 if ((ost->audio_resample && !ost->resample) || resample_changed) {
938 if (resample_changed) {
939 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",
940 ist->file_index, ist->st->index,
941 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
942 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
943 ost->resample_sample_fmt = dec->sample_fmt;
944 ost->resample_channels = dec->channels;
945 ost->resample_sample_rate = dec->sample_rate;
946 if (ost->resample)
947 audio_resample_close(ost->resample);
948 }
949 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
950 if (audio_sync_method <= 1 &&
951 ost->resample_sample_fmt == enc->sample_fmt &&
952 ost->resample_channels == enc->channels &&
953 ost->resample_sample_rate == enc->sample_rate) {
954 ost->resample = NULL;
955 ost->audio_resample = 0;
956 } else if (ost->audio_resample) {
957 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
958 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
959 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
960 enc->sample_rate, dec->sample_rate,
961 enc->sample_fmt, dec->sample_fmt,
962 16, 10, 0, 0.8);
963 if (!ost->resample) {
964 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
965 dec->channels, dec->sample_rate,
966 enc->channels, enc->sample_rate);
967 exit_program(1);
968 }
969 }
970 }
971
972 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
973 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
974 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
975 if (ost->reformat_ctx)
976 av_audio_convert_free(ost->reformat_ctx);
977 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
978 dec->sample_fmt, 1, NULL, 0);
979 if (!ost->reformat_ctx) {
980 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
981 av_get_sample_fmt_name(dec->sample_fmt),
982 av_get_sample_fmt_name(enc->sample_fmt));
983 exit_program(1);
984 }
985 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
986 }
987
988 if (audio_sync_method) {
989 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts -
990 av_fifo_size(ost->fifo) / (enc->channels * osize);
991 int idelta = delta * dec->sample_rate / enc->sample_rate;
992 int byte_delta = idelta * isize * dec->channels;
993
994 // FIXME resample delay
995 if (fabs(delta) > 50) {
996 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
997 if (byte_delta < 0) {
998 byte_delta = FFMAX(byte_delta, -size);
999 size += byte_delta;
1000 buf -= byte_delta;
1001 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1002 -byte_delta / (isize * dec->channels));
1003 if (!size)
1004 return;
1005 ist->is_start = 0;
1006 } else {
1007 static uint8_t *input_tmp = NULL;
1008 input_tmp = av_realloc(input_tmp, byte_delta + size);
1009
1010 if (byte_delta > allocated_for_size - size) {
1011 allocated_for_size = byte_delta + (int64_t)size;
1012 goto need_realloc;
1013 }
1014 ist->is_start = 0;
1015
1016 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
1017 memcpy(input_tmp + byte_delta, buf, size);
1018 buf = input_tmp;
1019 size += byte_delta;
1020 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1021 }
1022 } else if (audio_sync_method > 1) {
1023 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
1024 av_assert0(ost->audio_resample);
1025 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1026 delta, comp, enc->sample_rate);
1027 // 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));
1028 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1029 }
1030 }
1031 } else
1032 ost->sync_opts = lrintf(get_sync_ipts(ost) * enc->sample_rate) -
1033 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
1034
1035 if (ost->audio_resample) {
1036 buftmp = audio_buf;
1037 size_out = audio_resample(ost->resample,
1038 (short *)buftmp, (short *)buf,
1039 size / (dec->channels * isize));
1040 size_out = size_out * enc->channels * osize;
1041 } else {
1042 buftmp = buf;
1043 size_out = size;
1044 }
1045
1046 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1047 const void *ibuf[6] = { buftmp };
1048 void *obuf[6] = { audio_buf };
1049 int istride[6] = { isize };
1050 int ostride[6] = { osize };
1051 int len = size_out / istride[0];
1052 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
1053 printf("av_audio_convert() failed\n");
1054 if (exit_on_error)
1055 exit_program(1);
1056 return;
1057 }
1058 buftmp = audio_buf;
1059 size_out = len * osize;
1060 }
1061
1062 /* now encode as many frames as possible */
1063 if (enc->frame_size > 1) {
1064 /* output resampled raw samples */
1065 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1066 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1067 exit_program(1);
1068 }
1069 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1070
1071 frame_bytes = enc->frame_size * osize * enc->channels;
1072
1073 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1074 AVPacket pkt;
1075 av_init_packet(&pkt);
1076
1077 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1078
1079 // FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1080
1081 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
1082 (short *)audio_buf);
1083 if (ret < 0) {
1084 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1085 exit_program(1);
1086 }
1087 audio_size += ret;
1088 pkt.stream_index = ost->index;
1089 pkt.data = audio_out;
1090 pkt.size = ret;
1091 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1092 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1093 pkt.flags |= AV_PKT_FLAG_KEY;
1094 write_frame(s, &pkt, enc, ost->bitstream_filters);
1095
1096 ost->sync_opts += enc->frame_size;
1097 }
1098 } else {
1099 AVPacket pkt;
1100 av_init_packet(&pkt);
1101
1102 ost->sync_opts += size_out / (osize * enc->channels);
1103
1104 /* output a pcm frame */
1105 /* determine the size of the coded buffer */
1106 size_out /= osize;
1107 if (coded_bps)
1108 size_out = size_out * coded_bps / 8;
1109
1110 if (size_out > audio_out_size) {
1111 av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
1112 exit_program(1);
1113 }
1114
1115 // FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1116 ret = avcodec_encode_audio(enc, audio_out, size_out,
1117 (short *)buftmp);
1118 if (ret < 0) {
1119 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1120 exit_program(1);
1121 }
1122 audio_size += ret;
1123 pkt.stream_index = ost->index;
1124 pkt.data = audio_out;
1125 pkt.size = ret;
1126 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1127 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1128 pkt.flags |= AV_PKT_FLAG_KEY;
1129 write_frame(s, &pkt, enc, ost->bitstream_filters);
1130 }
1131 }
1132
1133 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1134 {
1135 AVCodecContext *dec;
1136 AVPicture *picture2;
1137 AVPicture picture_tmp;
1138 uint8_t *buf = 0;
1139
1140 dec = ist->st->codec;
1141
1142 /* deinterlace : must be done before any resize */
1143 if (do_deinterlace) {
1144 int size;
1145
1146 /* create temporary picture */
1147 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1148 buf = av_malloc(size);
1149 if (!buf)
1150 return;
1151
1152 picture2 = &picture_tmp;
1153 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1154
1155 if (avpicture_deinterlace(picture2, picture,
1156 dec->pix_fmt, dec->width, dec->height) < 0) {
1157 /* if error, do not deinterlace */
1158 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1159 av_free(buf);
1160 buf = NULL;
1161 picture2 = picture;
1162 }
1163 } else {
1164 picture2 = picture;
1165 }
1166
1167 if (picture != picture2)
1168 *picture = *picture2;
1169 *bufp = buf;
1170 }
1171
1172 static void do_subtitle_out(AVFormatContext *s,
1173 OutputStream *ost,
1174 InputStream *ist,
1175 AVSubtitle *sub,
1176 int64_t pts)
1177 {
1178 static uint8_t *subtitle_out = NULL;
1179 int subtitle_out_max_size = 1024 * 1024;
1180 int subtitle_out_size, nb, i;
1181 AVCodecContext *enc;
1182 AVPacket pkt;
1183
1184 if (pts == AV_NOPTS_VALUE) {
1185 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1186 if (exit_on_error)
1187 exit_program(1);
1188 return;
1189 }
1190
1191 enc = ost->st->codec;
1192
1193 if (!subtitle_out) {
1194 subtitle_out = av_malloc(subtitle_out_max_size);
1195 }
1196
1197 /* Note: DVB subtitle need one packet to draw them and one other
1198 packet to clear them */
1199 /* XXX: signal it in the codec context ? */
1200 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1201 nb = 2;
1202 else
1203 nb = 1;
1204
1205 for (i = 0; i < nb; i++) {
1206 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1207 // start_display_time is required to be 0
1208 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1209 sub->end_display_time -= sub->start_display_time;
1210 sub->start_display_time = 0;
1211 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1212 subtitle_out_max_size, sub);
1213 if (subtitle_out_size < 0) {
1214 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1215 exit_program(1);
1216 }
1217
1218 av_init_packet(&pkt);
1219 pkt.stream_index = ost->index;
1220 pkt.data = subtitle_out;
1221 pkt.size = subtitle_out_size;
1222 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1223 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1224 /* XXX: the pts correction is handled here. Maybe handling
1225 it in the codec would be better */
1226 if (i == 0)
1227 pkt.pts += 90 * sub->start_display_time;
1228 else
1229 pkt.pts += 90 * sub->end_display_time;
1230 }
1231 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1232 }
1233 }
1234
1235 static int bit_buffer_size = 1024 * 256;
1236 static uint8_t *bit_buffer = NULL;
1237
1238 static void do_video_resample(OutputStream *ost,
1239 InputStream *ist,
1240 AVFrame *in_picture,
1241 AVFrame **out_picture)
1242 {
1243 int resample_changed = 0;
1244 AVCodecContext *dec = ist->st->codec;
1245 *out_picture = in_picture;
1246
1247 resample_changed = ost->resample_width != dec->width ||
1248 ost->resample_height != dec->height ||
1249 ost->resample_pix_fmt != dec->pix_fmt;
1250
1251 if (resample_changed) {
1252 av_log(NULL, AV_LOG_INFO,
1253 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1254 ist->file_index, ist->st->index,
1255 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1256 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1257 if (!ost->video_resample)
1258 ost->video_resample = 1;
1259 }
1260
1261 #if !CONFIG_AVFILTER
1262 if (ost->video_resample) {
1263 *out_picture = &ost->pict_tmp;
1264 if (resample_changed) {
1265 /* initialize a new scaler context */
1266 sws_freeContext(ost->img_resample_ctx);
1267 ost->img_resample_ctx = sws_getContext(
1268 ist->st->codec->width,
1269 ist->st->codec->height,
1270 ist->st->codec->pix_fmt,
1271 ost->st->codec->width,
1272 ost->st->codec->height,
1273 ost->st->codec->pix_fmt,
1274 ost->sws_flags, NULL, NULL, NULL);
1275 if (ost->img_resample_ctx == NULL) {
1276 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1277 exit_program(1);
1278 }
1279 }
1280 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1281 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1282 }
1283 #else
1284 if (resample_changed) {
1285 avfilter_graph_free(&ost->graph);
1286 if (configure_video_filters(ist, ost)) {
1287 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1288 exit_program(1);
1289 }
1290 }
1291 #endif
1292 if (resample_changed) {
1293 ost->resample_width = dec->width;
1294 ost->resample_height = dec->height;
1295 ost->resample_pix_fmt = dec->pix_fmt;
1296 }
1297 }
1298
1299
1300 static void do_video_out(AVFormatContext *s,
1301 OutputStream *ost,
1302 InputStream *ist,
1303 AVFrame *in_picture,
1304 int *frame_size, float quality)
1305 {
1306 int nb_frames, i, ret, format_video_sync;
1307 AVFrame *final_picture;
1308 AVCodecContext *enc;
1309 double sync_ipts;
1310
1311 enc = ost->st->codec;
1312
1313 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1314
1315 /* by default, we output a single frame */
1316 nb_frames = 1;
1317
1318 *frame_size = 0;
1319
1320 format_video_sync = video_sync_method;
1321 if (format_video_sync < 0)
1322 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 :
1323 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1324
1325 if (format_video_sync) {
1326 double vdelta = sync_ipts - ost->sync_opts;
1327 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1328 if (vdelta < -1.1)
1329 nb_frames = 0;
1330 else if (format_video_sync == 2) {
1331 if (vdelta <= -0.6) {
1332 nb_frames = 0;
1333 } else if (vdelta > 0.6)
1334 ost->sync_opts = lrintf(sync_ipts);
1335 } else if (vdelta > 1.1)
1336 nb_frames = lrintf(vdelta);
1337 //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);
1338 if (nb_frames == 0) {
1339 ++nb_frames_drop;
1340 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1341 } else if (nb_frames > 1) {
1342 nb_frames_dup += nb_frames - 1;
1343 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1344 }
1345 } else
1346 ost->sync_opts = lrintf(sync_ipts);
1347
1348 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1349 if (nb_frames <= 0)
1350 return;
1351
1352 do_video_resample(ost, ist, in_picture, &final_picture);
1353
1354 /* duplicates frame if needed */
1355 for (i = 0; i < nb_frames; i++) {
1356 AVPacket pkt;
1357 av_init_packet(&pkt);
1358 pkt.stream_index = ost->index;
1359
1360 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1361 enc->codec->id == CODEC_ID_RAWVIDEO) {
1362 /* raw pictures are written as AVPicture structure to
1363 avoid any copies. We support temporarily the older
1364 method. */
1365 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1366 enc->coded_frame->top_field_first = in_picture->top_field_first;
1367 pkt.data = (uint8_t *)final_picture;
1368 pkt.size = sizeof(AVPicture);
1369 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1370 pkt.flags |= AV_PKT_FLAG_KEY;
1371
1372 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1373 } else {
1374 AVFrame big_picture;
1375
1376 big_picture = *final_picture;
1377 /* better than nothing: use input picture interlaced
1378 settings */
1379 big_picture.interlaced_frame = in_picture->interlaced_frame;
1380 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1381 if (ost->top_field_first == -1)
1382 big_picture.top_field_first = in_picture->top_field_first;
1383 else
1384 big_picture.top_field_first = !!ost->top_field_first;
1385 }
1386
1387 /* handles same_quant here. This is not correct because it may
1388 not be a global option */
1389 big_picture.quality = quality;
1390 if (!enc->me_threshold)
1391 big_picture.pict_type = 0;
1392 // big_picture.pts = AV_NOPTS_VALUE;
1393 big_picture.pts = ost->sync_opts;
1394 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1395 // av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1396 if (ost->forced_kf_index < ost->forced_kf_count &&
1397 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1398 big_picture.pict_type = AV_PICTURE_TYPE_I;
1399 ost->forced_kf_index++;
1400 }
1401 ret = avcodec_encode_video(enc,
1402 bit_buffer, bit_buffer_size,
1403 &big_picture);
1404 if (ret < 0) {
1405 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1406 exit_program(1);
1407 }
1408
1409 if (ret > 0) {
1410 pkt.data = bit_buffer;
1411 pkt.size = ret;
1412 if (enc->coded_frame->pts != AV_NOPTS_VALUE)
1413 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1414 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1415 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1416 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1417
1418 if (enc->coded_frame->key_frame)
1419 pkt.flags |= AV_PKT_FLAG_KEY;
1420 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1421 *frame_size = ret;
1422 video_size += ret;
1423 // fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1424 // enc->frame_number-1, ret, enc->pict_type);
1425 /* if two pass, output log */
1426 if (ost->logfile && enc->stats_out) {
1427 fprintf(ost->logfile, "%s", enc->stats_out);
1428 }
1429 }
1430 }
1431 ost->sync_opts++;
1432 ost->frame_number++;
1433 }
1434 }
1435
1436 static double psnr(double d)
1437 {
1438 return -10.0 * log(d) / log(10.0);
1439 }
1440
1441 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1442 int frame_size)
1443 {
1444 AVCodecContext *enc;
1445 int frame_number;
1446 double ti1, bitrate, avg_bitrate;
1447
1448 /* this is executed just the first time do_video_stats is called */
1449 if (!vstats_file) {
1450 vstats_file = fopen(vstats_filename, "w");
1451 if (!vstats_file) {
1452 perror("fopen");
1453 exit_program(1);
1454 }
1455 }
1456
1457 enc = ost->st->codec;
1458 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1459 frame_number = ost->frame_number;
1460 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1461 if (enc->flags&CODEC_FLAG_PSNR)
1462 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1463
1464 fprintf(vstats_file,"f_size= %6d ", frame_size);
1465 /* compute pts value */
1466 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1467 if (ti1 < 0.01)
1468 ti1 = 0.01;
1469
1470 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1471 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1472 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1473 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1474 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1475 }
1476 }
1477
1478 static void print_report(OutputFile *output_files,
1479 OutputStream *ost_table, int nb_ostreams,
1480 int is_last_report, int64_t timer_start)
1481 {
1482 char buf[1024];
1483 OutputStream *ost;
1484 AVFormatContext *oc;
1485 int64_t total_size;
1486 AVCodecContext *enc;
1487 int frame_number, vid, i;
1488 double bitrate, ti1, pts;
1489 static int64_t last_time = -1;
1490 static int qp_histogram[52];
1491
1492 if (!print_stats && !is_last_report)
1493 return;
1494
1495 if (!is_last_report) {
1496 int64_t cur_time;
1497 /* display the report every 0.5 seconds */
1498 cur_time = av_gettime();
1499 if (last_time == -1) {
1500 last_time = cur_time;
1501 return;
1502 }
1503 if ((cur_time - last_time) < 500000)
1504 return;
1505 last_time = cur_time;
1506 }
1507
1508
1509 oc = output_files[0].ctx;
1510
1511 total_size = avio_size(oc->pb);
1512 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1513 total_size = avio_tell(oc->pb);
1514
1515 buf[0] = '\0';
1516 ti1 = 1e10;
1517 vid = 0;
1518 for (i = 0; i < nb_ostreams; i++) {
1519 float q = -1;
1520 ost = &ost_table[i];
1521 enc = ost->st->codec;
1522 if (!ost->stream_copy && enc->coded_frame)
1523 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1524 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1525 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1526 }
1527 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1528 float t = (av_gettime() - timer_start) / 1000000.0;
1529
1530 frame_number = ost->frame_number;
1531 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1532 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1533 if (is_last_report)
1534 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1535 if (qp_hist) {
1536 int j;
1537 int qp = lrintf(q);
1538 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1539 qp_histogram[qp]++;
1540 for (j = 0; j < 32; j++)
1541 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1542 }
1543 if (enc->flags&CODEC_FLAG_PSNR) {
1544 int j;
1545 double error, error_sum = 0;
1546 double scale, scale_sum = 0;
1547 char type[3] = { 'Y','U','V' };
1548 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1549 for (j = 0; j < 3; j++) {
1550 if (is_last_report) {
1551 error = enc->error[j];
1552 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1553 } else {
1554 error = enc->coded_frame->error[j];
1555 scale = enc->width * enc->height * 255.0 * 255.0;
1556 }
1557 if (j)
1558 scale /= 4;
1559 error_sum += error;
1560 scale_sum += scale;
1561 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1562 }
1563 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1564 }
1565 vid = 1;
1566 }
1567 /* compute min output value */
1568 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1569 if ((pts < ti1) && (pts > 0))
1570 ti1 = pts;
1571 }
1572 if (ti1 < 0.01)
1573 ti1 = 0.01;
1574
1575 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1576
1577 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1578 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1579 (double)total_size / 1024, ti1, bitrate);
1580
1581 if (nb_frames_dup || nb_frames_drop)
1582 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1583 nb_frames_dup, nb_frames_drop);
1584
1585 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1586
1587 fflush(stderr);
1588
1589 if (is_last_report) {
1590 int64_t raw= audio_size + video_size + extra_size;
1591 av_log(NULL, AV_LOG_INFO, "\n");
1592 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1593 video_size / 1024.0,
1594 audio_size / 1024.0,
1595 extra_size / 1024.0,
1596 100.0 * (total_size - raw) / raw
1597 );
1598 }
1599 }
1600
1601 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1602 {
1603 int i, ret;
1604
1605 for (i = 0; i < nb_ostreams; i++) {
1606 OutputStream *ost = &ost_table[i];
1607 AVCodecContext *enc = ost->st->codec;
1608 AVFormatContext *os = output_files[ost->file_index].ctx;
1609
1610 if (!ost->encoding_needed)
1611 continue;
1612
1613 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1614 continue;
1615 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1616 continue;
1617
1618 for (;;) {
1619 AVPacket pkt;
1620 int fifo_bytes;
1621 av_init_packet(&pkt);
1622 pkt.stream_index = ost->index;
1623
1624 switch (ost->st->codec->codec_type) {
1625 case AVMEDIA_TYPE_AUDIO:
1626 fifo_bytes = av_fifo_size(ost->fifo);
1627 ret = 0;
1628 /* encode any samples remaining in fifo */
1629 if (fifo_bytes > 0) {
1630 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1631 int fs_tmp = enc->frame_size;
1632
1633 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1634 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1635 enc->frame_size = fifo_bytes / (osize * enc->channels);
1636 } else { /* pad */
1637 int frame_bytes = enc->frame_size*osize*enc->channels;
1638 if (allocated_audio_buf_size < frame_bytes)
1639 exit_program(1);
1640 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1641 }
1642
1643 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1644 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1645 ost->st->time_base.num, enc->sample_rate);
1646 enc->frame_size = fs_tmp;
1647 }
1648 if (ret <= 0) {
1649 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1650 }
1651 if (ret < 0) {
1652 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1653 exit_program(1);
1654 }
1655 audio_size += ret;
1656 pkt.flags |= AV_PKT_FLAG_KEY;
1657 break;
1658 case AVMEDIA_TYPE_VIDEO:
1659 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1660 if (ret < 0) {
1661 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1662 exit_program(1);
1663 }
1664 video_size += ret;
1665 if (enc->coded_frame && enc->coded_frame->key_frame)
1666 pkt.flags |= AV_PKT_FLAG_KEY;
1667 if (ost->logfile && enc->stats_out) {
1668 fprintf(ost->logfile, "%s", enc->stats_out);
1669 }
1670 break;
1671 default:
1672 ret = -1;
1673 }
1674
1675 if (ret <= 0)
1676 break;
1677 pkt.data = bit_buffer;
1678 pkt.size = ret;
1679 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1680 pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1681 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1682 }
1683 }
1684 }
1685
1686 /*
1687 * Check whether a packet from ist should be written into ost at this time
1688 */
1689 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1690 {
1691 OutputFile *of = &output_files[ost->file_index];
1692 int ist_index = ist - input_streams;
1693
1694 if (ost->source_index != ist_index)
1695 return 0;
1696
1697 if (of->start_time && ist->pts < of->start_time)
1698 return 0;
1699
1700 if (of->recording_time != INT64_MAX &&
1701 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1702 (AVRational){ 1, 1000000 }) >= 0) {
1703 ost->is_past_recording_time = 1;
1704 return 0;
1705 }
1706
1707 return 1;
1708 }
1709
1710 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1711 {
1712 OutputFile *of = &output_files[ost->file_index];
1713 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1714 AVPacket opkt;
1715
1716 av_init_packet(&opkt);
1717
1718 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1719 !ost->copy_initial_nonkeyframes)
1720 return;
1721
1722 /* force the input stream PTS */
1723 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1724 audio_size += pkt->size;
1725 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1726 video_size += pkt->size;
1727 ost->sync_opts++;
1728 }
1729
1730 opkt.stream_index = ost->index;
1731 if (pkt->pts != AV_NOPTS_VALUE)
1732 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1733 else
1734 opkt.pts = AV_NOPTS_VALUE;
1735
1736 if (pkt->dts == AV_NOPTS_VALUE)
1737 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1738 else
1739 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1740 opkt.dts -= ost_tb_start_time;
1741
1742 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1743 opkt.flags = pkt->flags;
1744
1745 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1746 if ( ost->st->codec->codec_id != CODEC_ID_H264
1747 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1748 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1749 ) {
1750 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1751 opkt.destruct = av_destruct_packet;
1752 } else {
1753 opkt.data = pkt->data;
1754 opkt.size = pkt->size;
1755 }
1756
1757 write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters);
1758 ost->st->codec->frame_number++;
1759 ost->frame_number++;
1760 av_free_packet(&opkt);
1761 }
1762
1763 static void rate_emu_sleep(InputStream *ist)
1764 {
1765 if (input_files[ist->file_index].rate_emu) {
1766 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1767 int64_t now = av_gettime() - ist->start;
1768 if (pts > now)
1769 usleep(pts - now);
1770 }
1771 }
1772
1773 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1774 {
1775 AVFrame *decoded_frame;
1776 AVCodecContext *avctx = ist->st->codec;
1777 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1778 int i, ret;
1779
1780 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1781 return AVERROR(ENOMEM);
1782 else
1783 avcodec_get_frame_defaults(ist->decoded_frame);
1784 decoded_frame = ist->decoded_frame;
1785
1786 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1787 if (ret < 0) {
1788 return ret;
1789 }
1790
1791 if (!*got_output) {
1792 /* no audio frame */
1793 return ret;
1794 }
1795
1796 /* if the decoder provides a pts, use it instead of the last packet pts.
1797 the decoder could be delaying output by a packet or more. */
1798 if (decoded_frame->pts != AV_NOPTS_VALUE)
1799 ist->next_pts = decoded_frame->pts;
1800
1801 /* increment next_pts to use for the case where the input stream does not
1802 have timestamps or there are multiple frames in the packet */
1803 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1804 avctx->sample_rate;
1805
1806 // preprocess audio (volume)
1807 if (audio_volume != 256) {
1808 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1809 void *samples = decoded_frame->data[0];
1810 switch (avctx->sample_fmt) {
1811 case AV_SAMPLE_FMT_U8:
1812 {
1813 uint8_t *volp = samples;
1814 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1815 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1816 *volp++ = av_clip_uint8(v);
1817 }
1818 break;
1819 }
1820 case AV_SAMPLE_FMT_S16:
1821 {
1822 int16_t *volp = samples;
1823 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1824 int v = ((*volp) * audio_volume + 128) >> 8;
1825 *volp++ = av_clip_int16(v);
1826 }
1827 break;
1828 }
1829 case AV_SAMPLE_FMT_S32:
1830 {
1831 int32_t *volp = samples;
1832 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1833 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1834 *volp++ = av_clipl_int32(v);
1835 }
1836 break;
1837 }
1838 case AV_SAMPLE_FMT_FLT:
1839 {
1840 float *volp = samples;
1841 float scale = audio_volume / 256.f;
1842 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1843 *volp++ *= scale;
1844 }
1845 break;
1846 }
1847 case AV_SAMPLE_FMT_DBL:
1848 {
1849 double *volp = samples;
1850 double scale = audio_volume / 256.;
1851 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1852 *volp++ *= scale;
1853 }
1854 break;
1855 }
1856 default:
1857 av_log(NULL, AV_LOG_FATAL,
1858 "Audio volume adjustment on sample format %s is not supported.\n",
1859 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1860 exit_program(1);
1861 }
1862 }
1863
1864 rate_emu_sleep(ist);
1865
1866 for (i = 0; i < nb_output_streams; i++) {
1867 OutputStream *ost = &output_streams[i];
1868
1869 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1870 continue;
1871 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
1872 }
1873
1874 return ret;
1875 }
1876
1877 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1878 {
1879 AVFrame *decoded_frame, *filtered_frame = NULL;
1880 void *buffer_to_free = NULL;
1881 int i, ret = 0;
1882 float quality;
1883 #if CONFIG_AVFILTER
1884 int frame_available = 1;
1885 #endif
1886
1887 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1888 return AVERROR(ENOMEM);
1889 else
1890 avcodec_get_frame_defaults(ist->decoded_frame);
1891 decoded_frame = ist->decoded_frame;
1892 pkt->pts = *pkt_pts;
1893 pkt->dts = ist->pts;
1894 *pkt_pts = AV_NOPTS_VALUE;
1895
1896 ret = avcodec_decode_video2(ist->st->codec,
1897 decoded_frame, got_output, pkt);
1898 if (ret < 0)
1899 return ret;
1900
1901 quality = same_quant ? decoded_frame->quality : 0;
1902 if (!*got_output) {
1903 /* no picture yet */
1904 return ret;
1905 }
1906 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1907 decoded_frame->pkt_dts);
1908 if (pkt->duration)
1909 ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1910 else if (ist->st->codec->time_base.num != 0) {
1911 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1912 ist->st->codec->ticks_per_frame;
1913 ist->next_pts += ((int64_t)AV_TIME_BASE *
1914 ist->st->codec->time_base.num * ticks) /
1915 ist->st->codec->time_base.den;
1916 }
1917 pkt->size = 0;
1918 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1919
1920 rate_emu_sleep(ist);
1921
1922 for (i = 0; i < nb_output_streams; i++) {
1923 OutputStream *ost = &output_streams[i];
1924 int frame_size;
1925
1926 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1927 continue;
1928
1929 #if CONFIG_AVFILTER
1930 if (ist->st->sample_aspect_ratio.num)
1931 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1932 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1933 FrameBuffer *buf = decoded_frame->opaque;
1934 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1935 decoded_frame->data, decoded_frame->linesize,
1936 AV_PERM_READ | AV_PERM_PRESERVE,
1937 ist->st->codec->width, ist->st->codec->height,
1938 ist->st->codec->pix_fmt);
1939
1940 avfilter_copy_frame_props(fb, decoded_frame);
1941 fb->pts = ist->pts;
1942 fb->buf->priv = buf;
1943 fb->buf->free = filter_release_buffer;
1944
1945 buf->refcount++;
1946 av_buffersrc_buffer(ost->input_video_filter, fb);
1947 } else
1948 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
1949 ist->pts, decoded_frame->sample_aspect_ratio);
1950
1951 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1952 av_free(buffer_to_free);
1953 return AVERROR(ENOMEM);
1954 } else
1955 avcodec_get_frame_defaults(ist->filtered_frame);
1956 filtered_frame = ist->filtered_frame;
1957
1958 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1959 while (frame_available) {
1960 AVRational ist_pts_tb;
1961 if (ost->output_video_filter)
1962 get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1963 if (ost->picref)
1964 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1965 if (ost->picref->video && !ost->frame_aspect_ratio)
1966 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1967 #else
1968 filtered_frame = decoded_frame;
1969 #endif
1970
1971 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
1972 same_quant ? quality : ost->st->codec->global_quality);
1973 if (vstats_filename && frame_size)
1974 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1975 #if CONFIG_AVFILTER
1976 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1977 if (ost->picref)
1978 avfilter_unref_buffer(ost->picref);
1979 }
1980 #endif
1981 }
1982
1983 av_free(buffer_to_free);
1984 return ret;
1985 }
1986
1987 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1988 {
1989 AVSubtitle subtitle;
1990 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1991 &subtitle, got_output, pkt);
1992 if (ret < 0)
1993 return ret;
1994 if (!*got_output)
1995 return ret;
1996
1997 rate_emu_sleep(ist);
1998
1999 for (i = 0; i < nb_output_streams; i++) {
2000 OutputStream *ost = &output_streams[i];
2001
2002 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2003 continue;
2004
2005 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2006 }
2007
2008 avsubtitle_free(&subtitle);
2009 return ret;
2010 }
2011
2012 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2013 static int output_packet(InputStream *ist,
2014 OutputStream *ost_table, int nb_ostreams,
2015 const AVPacket *pkt)
2016 {
2017 int i;
2018 int got_output;
2019 int64_t pkt_pts = AV_NOPTS_VALUE;
2020 AVPacket avpkt;
2021
2022 if (ist->next_pts == AV_NOPTS_VALUE)
2023 ist->next_pts = ist->pts;
2024
2025 if (pkt == NULL) {
2026 /* EOF handling */
2027 av_init_packet(&avpkt);
2028 avpkt.data = NULL;
2029 avpkt.size = 0;
2030 goto handle_eof;
2031 } else {
2032 avpkt = *pkt;
2033 }
2034
2035 if (pkt->dts != AV_NOPTS_VALUE)
2036 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2037 if (pkt->pts != AV_NOPTS_VALUE)
2038 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2039
2040 // while we have more to decode or while the decoder did output something on EOF
2041 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2042 int ret = 0;
2043 handle_eof:
2044
2045 ist->pts = ist->next_pts;
2046
2047 if (avpkt.size && avpkt.size != pkt->size) {
2048 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2049 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2050 ist->showed_multi_packet_warning = 1;
2051 }
2052
2053 switch (ist->st->codec->codec_type) {
2054 case AVMEDIA_TYPE_AUDIO:
2055 ret = transcode_audio (ist, &avpkt, &got_output);
2056 break;
2057 case AVMEDIA_TYPE_VIDEO:
2058 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2059 break;
2060 case AVMEDIA_TYPE_SUBTITLE:
2061 ret = transcode_subtitles(ist, &avpkt, &got_output);
2062 break;
2063 default:
2064 return -1;
2065 }
2066
2067 if (ret < 0)
2068 return ret;
2069 // touch data and size only if not EOF
2070 if (pkt) {
2071 avpkt.data += ret;
2072 avpkt.size -= ret;
2073 }
2074 if (!got_output) {
2075 continue;
2076 }
2077 }
2078
2079 /* handle stream copy */
2080 if (!ist->decoding_needed) {
2081 rate_emu_sleep(ist);
2082 ist->pts = ist->next_pts;
2083 switch (ist->st->codec->codec_type) {
2084 case AVMEDIA_TYPE_AUDIO:
2085 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2086 ist->st->codec->sample_rate;
2087 break;
2088 case AVMEDIA_TYPE_VIDEO:
2089 if (ist->st->codec->time_base.num != 0) {
2090 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2091 ist->next_pts += ((int64_t)AV_TIME_BASE *
2092 ist->st->codec->time_base.num * ticks) /
2093 ist->st->codec->time_base.den;
2094 }
2095 break;
2096 }
2097 }
2098 for (i = 0; pkt && i < nb_ostreams; i++) {
2099 OutputStream *ost = &ost_table[i];
2100
2101 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2102 continue;
2103
2104 do_streamcopy(ist, ost, pkt);
2105 }
2106
2107 return 0;
2108 }
2109
2110 static void print_sdp(OutputFile *output_files, int n)
2111 {
2112 char sdp[2048];
2113 int i;
2114 AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
2115
2116 if (!avc)
2117 exit_program(1);
2118 for (i = 0; i < n; i++)
2119 avc[i] = output_files[i].ctx;
2120
2121 av_sdp_create(avc, n, sdp, sizeof(sdp));
2122 printf("SDP:\n%s\n", sdp);
2123 fflush(stdout);
2124 av_freep(&avc);
2125 }
2126
2127 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2128 char *error, int error_len)
2129 {
2130 int i;
2131 InputStream *ist = &input_streams[ist_index];
2132 if (ist->decoding_needed) {
2133 AVCodec *codec = ist->dec;
2134 if (!codec) {
2135 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2136 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2137 return AVERROR(EINVAL);
2138 }
2139
2140 /* update requested sample format for the decoder based on the
2141 corresponding encoder sample format */
2142 for (i = 0; i < nb_output_streams; i++) {
2143 OutputStream *ost = &output_streams[i];
2144 if (ost->source_index == ist_index) {
2145 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2146 break;
2147 }
2148 }
2149
2150 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2151 ist->st->codec->get_buffer = codec_get_buffer;
2152 ist->st->codec->release_buffer = codec_release_buffer;
2153 ist->st->codec->opaque = ist;
2154 }
2155
2156 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2157 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2158 ist->file_index, ist->st->index);
2159 return AVERROR(EINVAL);
2160 }
2161 assert_codec_experimental(ist->st->codec, 0);
2162 assert_avoptions(ist->opts);
2163 }
2164
2165 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;
2166 ist->next_pts = AV_NOPTS_VALUE;
2167 init_pts_correction(&ist->pts_ctx);
2168 ist->is_start = 1;
2169
2170 return 0;
2171 }
2172
2173 static int transcode_init(OutputFile *output_files,
2174 int nb_output_files,
2175 InputFile *input_files,
2176 int nb_input_files)
2177 {
2178 int ret = 0, i, j, k;
2179 AVFormatContext *oc;
2180 AVCodecContext *codec, *icodec;
2181 OutputStream *ost;
2182 InputStream *ist;
2183 char error[1024];
2184 int want_sdp = 1;
2185
2186 /* init framerate emulation */
2187 for (i = 0; i < nb_input_files; i++) {
2188 InputFile *ifile = &input_files[i];
2189 if (ifile->rate_emu)
2190 for (j = 0; j < ifile->nb_streams; j++)
2191 input_streams[j + ifile->ist_index].start = av_gettime();
2192 }
2193
2194 /* output stream init */
2195 for (i = 0; i < nb_output_files; i++) {
2196 oc = output_files[i].ctx;
2197 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2198 av_dump_format(oc, i, oc->filename, 1);
2199 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2200 return AVERROR(EINVAL);
2201 }
2202 }
2203
2204 /* for each output stream, we compute the right encoding parameters */
2205 for (i = 0; i < nb_output_streams; i++) {
2206 ost = &output_streams[i];
2207 oc = output_files[ost->file_index].ctx;
2208 ist = &input_streams[ost->source_index];
2209
2210 if (ost->attachment_filename)
2211 continue;
2212
2213 codec = ost->st->codec;
2214 icodec = ist->st->codec;
2215
2216 ost->st->disposition = ist->st->disposition;
2217 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2218 codec->chroma_sample_location = icodec->chroma_sample_location;
2219
2220 if (ost->stream_copy) {
2221 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2222
2223 if (extra_size > INT_MAX) {
2224 return AVERROR(EINVAL);
2225 }
2226
2227 /* if stream_copy is selected, no need to decode or encode */
2228 codec->codec_id = icodec->codec_id;
2229 codec->codec_type = icodec->codec_type;
2230
2231 if (!codec->codec_tag) {
2232 if (!oc->oformat->codec_tag ||
2233 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2234 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2235 codec->codec_tag = icodec->codec_tag;
2236 }
2237
2238 codec->bit_rate = icodec->bit_rate;
2239 codec->rc_max_rate = icodec->rc_max_rate;
2240 codec->rc_buffer_size = icodec->rc_buffer_size;
2241 codec->field_order = icodec->field_order;
2242 codec->extradata = av_mallocz(extra_size);
2243 if (!codec->extradata) {
2244 return AVERROR(ENOMEM);
2245 }
2246 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2247 codec->extradata_size = icodec->extradata_size;
2248 if (!copy_tb) {
2249 codec->time_base = icodec->time_base;
2250 codec->time_base.num *= icodec->ticks_per_frame;
2251 av_reduce(&codec->time_base.num, &codec->time_base.den,
2252 codec->time_base.num, codec->time_base.den, INT_MAX);
2253 } else
2254 codec->time_base = ist->st->time_base;
2255
2256 switch (codec->codec_type) {
2257 case AVMEDIA_TYPE_AUDIO:
2258 if (audio_volume != 256) {
2259 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2260 exit_program(1);
2261 }
2262 codec->channel_layout = icodec->channel_layout;
2263 codec->sample_rate = icodec->sample_rate;
2264 codec->channels = icodec->channels;
2265 codec->frame_size = icodec->frame_size;
2266 codec->audio_service_type = icodec->audio_service_type;
2267 codec->block_align = icodec->block_align;
2268 break;
2269 case AVMEDIA_TYPE_VIDEO:
2270 codec->pix_fmt = icodec->pix_fmt;
2271 codec->width = icodec->width;
2272 codec->height = icodec->height;
2273 codec->has_b_frames = icodec->has_b_frames;
2274 if (!codec->sample_aspect_ratio.num) {
2275 codec->sample_aspect_ratio =
2276 ost->st->sample_aspect_ratio =
2277 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2278 ist->st->codec->sample_aspect_ratio.num ?
2279 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2280 }
2281 break;
2282 case AVMEDIA_TYPE_SUBTITLE:
2283 codec->width = icodec->width;
2284 codec->height = icodec->height;
2285 break;
2286 case AVMEDIA_TYPE_DATA:
2287 case AVMEDIA_TYPE_ATTACHMENT:
2288 break;
2289 default:
2290 abort();
2291 }
2292 } else {
2293 if (!ost->enc)
2294 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2295
2296 ist->decoding_needed = 1;
2297 ost->encoding_needed = 1;
2298
2299 switch (codec->codec_type) {
2300 case AVMEDIA_TYPE_AUDIO:
2301 ost->fifo = av_fifo_alloc(1024);
2302 if (!ost->fifo) {
2303 return AVERROR(ENOMEM);
2304 }
2305 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2306
2307 if (!codec->sample_rate)
2308 codec->sample_rate = icodec->sample_rate;
2309 choose_sample_rate(ost->st, ost->enc);
2310 codec->time_base = (AVRational){ 1, codec->sample_rate };
2311
2312 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2313 codec->sample_fmt = icodec->sample_fmt;
2314 choose_sample_fmt(ost->st, ost->enc);
2315
2316 if (!codec->channels)
2317 codec->channels = icodec->channels;
2318 codec->channel_layout = icodec->channel_layout;
2319 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2320 codec->channel_layout = 0;
2321
2322 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2323 icodec->request_channels = codec-> channels;
2324 ost->resample_sample_fmt = icodec->sample_fmt;
2325 ost->resample_sample_rate = icodec->sample_rate;
2326 ost->resample_channels = icodec->channels;
2327 break;
2328 case AVMEDIA_TYPE_VIDEO:
2329 if (codec->pix_fmt == PIX_FMT_NONE)
2330 codec->pix_fmt = icodec->pix_fmt;
2331 choose_pixel_fmt(ost->st, ost->enc);
2332
2333 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2334 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2335 exit_program(1);
2336 }
2337
2338 if (!codec->width || !codec->height) {
2339 codec->width = icodec->width;
2340 codec->height = icodec->height;
2341 }
2342
2343 ost->video_resample = codec->width != icodec->width ||
2344 codec->height != icodec->height ||
2345 codec->pix_fmt != icodec->pix_fmt;
2346 if (ost->video_resample) {
2347 #if !CONFIG_AVFILTER
2348 avcodec_get_frame_defaults(&ost->pict_tmp);
2349 if (avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2350 codec->width, codec->height)) {
2351 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2352 exit_program(1);
2353 }
2354 ost->img_resample_ctx = sws_getContext(
2355 icodec->width,
2356 icodec->height,
2357 icodec->pix_fmt,
2358 codec->width,
2359 codec->height,
2360 codec->pix_fmt,
2361 ost->sws_flags, NULL, NULL, NULL);
2362 if (ost->img_resample_ctx == NULL) {
2363 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2364 exit_program(1);
2365 }
2366 #endif
2367 codec->bits_per_raw_sample = 0;
2368 }
2369
2370 ost->resample_height = icodec->height;
2371 ost->resample_width = icodec->width;
2372 ost->resample_pix_fmt = icodec->pix_fmt;
2373
2374 if (!ost->frame_rate.num)
2375 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
2376 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2377 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2378 ost->frame_rate = ost->enc->supported_framerates[idx];
2379 }
2380 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2381
2382 #if CONFIG_AVFILTER
2383 if (configure_video_filters(ist, ost)) {
2384 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2385 exit(1);
2386 }
2387 #endif
2388 break;
2389 case AVMEDIA_TYPE_SUBTITLE:
2390 break;
2391 default:
2392 abort();
2393 break;
2394 }
2395 /* two pass mode */
2396 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2397 char logfilename[1024];
2398 FILE *f;
2399
2400 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2401 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2402 i);
2403 if (codec->flags & CODEC_FLAG_PASS1) {
2404 f = fopen(logfilename, "wb");
2405 if (!f) {
2406 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2407 logfilename, strerror(errno));
2408 exit_program(1);
2409 }
2410 ost->logfile = f;
2411 } else {
2412 char *logbuffer;
2413 size_t logbuffer_size;
2414 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2415 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2416 logfilename);
2417 exit_program(1);
2418 }
2419 codec->stats_in = logbuffer;
2420 }
2421 }
2422 }
2423 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2424 int size = codec->width * codec->height;
2425 bit_buffer_size = FFMAX(bit_buffer_size, 6 * size + 200);
2426 }
2427 }
2428
2429 if (!bit_buffer)
2430 bit_buffer = av_malloc(bit_buffer_size);
2431 if (!bit_buffer) {
2432 av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2433 bit_buffer_size);
2434 return AVERROR(ENOMEM);
2435 }
2436
2437 /* open each encoder */
2438 for (i = 0; i < nb_output_streams; i++) {
2439 ost = &output_streams[i];
2440 if (ost->encoding_needed) {
2441 AVCodec *codec = ost->enc;
2442 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2443 if (!codec) {
2444 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2445 ost->st->codec->codec_id, ost->file_index, ost->index);
2446 ret = AVERROR(EINVAL);
2447 goto dump_format;
2448 }
2449 if (dec->subtitle_header) {
2450 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2451 if (!ost->st->codec->subtitle_header) {
2452 ret = AVERROR(ENOMEM);
2453 goto dump_format;
2454 }
2455 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2456 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2457 }
2458 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2459 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2460 ost->file_index, ost->index);
2461 ret = AVERROR(EINVAL);
2462 goto dump_format;
2463 }
2464 assert_codec_experimental(ost->st->codec, 1);
2465 assert_avoptions(ost->opts);
2466 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2467 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2468 "It takes bits/s as argument, not kbits/s\n");
2469 extra_size += ost->st->codec->extradata_size;
2470
2471 if (ost->st->codec->me_threshold)
2472 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2473 }
2474 }
2475
2476 /* init input streams */
2477 for (i = 0; i < nb_input_streams; i++)
2478 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2479 goto dump_format;
2480
2481 /* discard unused programs */
2482 for (i = 0; i < nb_input_files; i++) {
2483 InputFile *ifile = &input_files[i];
2484 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2485 AVProgram *p = ifile->ctx->programs[j];
2486 int discard = AVDISCARD_ALL;
2487
2488 for (k = 0; k < p->nb_stream_indexes; k++)
2489 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2490 discard = AVDISCARD_DEFAULT;
2491 break;
2492 }
2493 p->discard = discard;
2494 }
2495 }
2496
2497 /* open files and write file headers */
2498 for (i = 0; i < nb_output_files; i++) {
2499 oc = output_files[i].ctx;
2500 oc->interrupt_callback = int_cb;
2501 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2502 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2503 ret = AVERROR(EINVAL);
2504 goto dump_format;
2505 }
2506 assert_avoptions(output_files[i].opts);
2507 if (strcmp(oc->oformat->name, "rtp")) {
2508 want_sdp = 0;
2509 }
2510 }
2511
2512 dump_format:
2513 /* dump the file output parameters - cannot be done before in case
2514 of stream copy */
2515 for (i = 0; i < nb_output_files; i++) {
2516 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2517 }
2518
2519 /* dump the stream mapping */
2520 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2521 for (i = 0; i < nb_output_streams; i++) {
2522 ost = &output_streams[i];
2523
2524 if (ost->attachment_filename) {
2525 /* an attached file */
2526 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2527 ost->attachment_filename, ost->file_index, ost->index);
2528 continue;
2529 }
2530 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2531 input_streams[ost->source_index].file_index,
2532 input_streams[ost->source_index].st->index,
2533 ost->file_index,
2534 ost->index);
2535 if (ost->sync_ist != &input_streams[ost->source_index])
2536 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2537 ost->sync_ist->file_index,
2538 ost->sync_ist->st->index);
2539 if (ost->stream_copy)
2540 av_log(NULL, AV_LOG_INFO, " (copy)");
2541 else
2542 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2543 input_streams[ost->source_index].dec->name : "?",
2544 ost->enc ? ost->enc->name : "?");
2545 av_log(NULL, AV_LOG_INFO, "\n");
2546 }
2547
2548 if (ret) {
2549 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2550 return ret;
2551 }
2552
2553 if (want_sdp) {
2554 print_sdp(output_files, nb_output_files);
2555 }
2556
2557 return 0;
2558 }
2559
2560 /*
2561 * The following code is the main loop of the file converter
2562 */
2563 static int transcode(OutputFile *output_files,
2564 int nb_output_files,
2565 InputFile *input_files,
2566 int nb_input_files)
2567 {
2568 int ret, i;
2569 AVFormatContext *is, *os;
2570 OutputStream *ost;
2571 InputStream *ist;
2572 uint8_t *no_packet;
2573 int no_packet_count = 0;
2574 int64_t timer_start;
2575
2576 if (!(no_packet = av_mallocz(nb_input_files)))
2577 exit_program(1);
2578
2579 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2580 if (ret < 0)
2581 goto fail;
2582
2583 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2584 term_init();
2585
2586 timer_start = av_gettime();
2587
2588 for (; received_sigterm == 0;) {
2589 int file_index, ist_index;
2590 AVPacket pkt;
2591 int64_t ipts_min;
2592 double opts_min;
2593
2594 ipts_min = INT64_MAX;
2595 opts_min = 1e100;
2596
2597 /* select the stream that we must read now by looking at the
2598 smallest output pts */
2599 file_index = -1;
2600 for (i = 0; i < nb_output_streams; i++) {
2601 OutputFile *of;
2602 int64_t ipts;
2603 double opts;
2604 ost = &output_streams[i];
2605 of = &output_files[ost->file_index];
2606 os = output_files[ost->file_index].ctx;
2607 ist = &input_streams[ost->source_index];
2608 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2609 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2610 continue;
2611 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2612 ipts = ist->pts;
2613 if (!input_files[ist->file_index].eof_reached) {
2614 if (ipts < ipts_min) {
2615 ipts_min = ipts;
2616 if (input_sync)
2617 file_index = ist->file_index;
2618 }
2619 if (opts < opts_min) {
2620 opts_min = opts;
2621 if (!input_sync) file_index = ist->file_index;
2622 }
2623 }
2624 if (ost->frame_number >= ost->max_frames) {
2625 int j;
2626 for (j = 0; j < of->ctx->nb_streams; j++)
2627 output_streams[of->ost_index + j].is_past_recording_time = 1;
2628 continue;
2629 }
2630 }
2631 /* if none, if is finished */
2632 if (file_index < 0) {
2633 if (no_packet_count) {
2634 no_packet_count = 0;
2635 memset(no_packet, 0, nb_input_files);
2636 usleep(10000);
2637 continue;
2638 }
2639 break;
2640 }
2641
2642 /* read a frame from it and output it in the fifo */
2643 is = input_files[file_index].ctx;
2644 ret = av_read_frame(is, &pkt);
2645 if (ret == AVERROR(EAGAIN)) {
2646 no_packet[file_index] = 1;
2647 no_packet_count++;
2648 continue;
2649 }
2650 if (ret < 0) {
2651 input_files[file_index].eof_reached = 1;
2652 if (opt_shortest)
2653 break;
2654 else
2655 continue;
2656 }
2657
2658 no_packet_count = 0;
2659 memset(no_packet, 0, nb_input_files);
2660
2661 if (do_pkt_dump) {
2662 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2663 is->streams[pkt.stream_index]);
2664 }
2665 /* the following test is needed in case new streams appear
2666 dynamically in stream : we ignore them */
2667 if (pkt.stream_index >= input_files[file_index].nb_streams)
2668 goto discard_packet;
2669 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2670 ist = &input_streams[ist_index];
2671 if (ist->discard)
2672 goto discard_packet;
2673
2674 if (pkt.dts != AV_NOPTS_VALUE)
2675 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2676 if (pkt.pts != AV_NOPTS_VALUE)
2677 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2678
2679 if (pkt.pts != AV_NOPTS_VALUE)
2680 pkt.pts *= ist->ts_scale;
2681 if (pkt.dts != AV_NOPTS_VALUE)
2682 pkt.dts *= ist->ts_scale;
2683
2684 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
2685 // ist->next_pts,
2686 // pkt.dts, input_files[ist->file_index].ts_offset,
2687 // ist->st->codec->codec_type);
2688 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2689 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2690 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2691 int64_t delta = pkt_dts - ist->next_pts;
2692 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->pts) && !copy_ts) {
2693 input_files[ist->file_index].ts_offset -= delta;
2694 av_log(NULL, AV_LOG_DEBUG,
2695 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2696 delta, input_files[ist->file_index].ts_offset);
2697 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2698 if (pkt.pts != AV_NOPTS_VALUE)
2699 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2700 }
2701 }
2702
2703 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2704 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
2705
2706 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2707 ist->file_index, ist->st->index);
2708 if (exit_on_error)
2709 exit_program(1);
2710 av_free_packet(&pkt);
2711 continue;
2712 }
2713
2714 discard_packet:
2715 av_free_packet(&pkt);
2716
2717 /* dump report by using the output first video and audio streams */
2718 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2719 }
2720
2721 /* at the end of stream, we must flush the decoder buffers */
2722 for (i = 0; i < nb_input_streams; i++) {
2723 ist = &input_streams[i];
2724 if (ist->decoding_needed) {
2725 output_packet(ist, output_streams, nb_output_streams, NULL);
2726 }
2727 }
2728 flush_encoders(output_streams, nb_output_streams);
2729
2730 term_exit();
2731
2732 /* write the trailer if needed and close file */
2733 for (i = 0; i < nb_output_files; i++) {
2734 os = output_files[i].ctx;
2735 av_write_trailer(os);
2736 }
2737
2738 /* dump report by using the first video and audio streams */
2739 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2740
2741 /* close each encoder */
2742 for (i = 0; i < nb_output_streams; i++) {
2743 ost = &output_streams[i];
2744 if (ost->encoding_needed) {
2745 av_freep(&ost->st->codec->stats_in);
2746 avcodec_close(ost->st->codec);
2747 }
2748 #if CONFIG_AVFILTER
2749 avfilter_graph_free(&ost->graph);
2750 #endif
2751 }
2752
2753 /* close each decoder */
2754 for (i = 0; i < nb_input_streams; i++) {
2755 ist = &input_streams[i];
2756 if (ist->decoding_needed) {
2757 avcodec_close(ist->st->codec);
2758 }
2759 }
2760
2761 /* finished ! */
2762 ret = 0;
2763
2764 fail:
2765 av_freep(&bit_buffer);
2766 av_freep(&no_packet);
2767
2768 if (output_streams) {
2769 for (i = 0; i < nb_output_streams; i++) {
2770 ost = &output_streams[i];
2771 if (ost) {
2772 if (ost->stream_copy)
2773 av_freep(&ost->st->codec->extradata);
2774 if (ost->logfile) {
2775 fclose(ost->logfile);
2776 ost->logfile = NULL;
2777 }
2778 av_fifo_free(ost->fifo); /* works even if fifo is not
2779 initialized but set to zero */
2780 av_freep(&ost->st->codec->subtitle_header);
2781 av_free(ost->pict_tmp.data[0]);
2782 av_free(ost->forced_kf_pts);
2783 if (ost->video_resample)
2784 sws_freeContext(ost->img_resample_ctx);
2785 if (ost->resample)
2786 audio_resample_close(ost->resample);
2787 if (ost->reformat_ctx)
2788 av_audio_convert_free(ost->reformat_ctx);
2789 av_dict_free(&ost->opts);
2790 }
2791 }
2792 }
2793 return ret;
2794 }
2795
2796 static double parse_frame_aspect_ratio(const char *arg)
2797 {
2798 int x = 0, y = 0;
2799 double ar = 0;
2800 const char *p;
2801 char *end;
2802
2803 p = strchr(arg, ':');
2804 if (p) {
2805 x = strtol(arg, &end, 10);
2806 if (end == p)
2807 y = strtol(end + 1, &end, 10);
2808 if (x > 0 && y > 0)
2809 ar = (double)x / (double)y;
2810 } else
2811 ar = strtod(arg, NULL);
2812
2813 if (!ar) {
2814 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2815 exit_program(1);
2816 }
2817 return ar;
2818 }
2819
2820 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2821 {
2822 return parse_option(o, "codec:a", arg, options);
2823 }
2824
2825 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2826 {
2827 return parse_option(o, "codec:v", arg, options);
2828 }
2829
2830 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2831 {
2832 return parse_option(o, "codec:s", arg, options);
2833 }
2834
2835 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2836 {
2837 return parse_option(o, "codec:d", arg, options);
2838 }
2839
2840 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2841 {
2842 StreamMap *m = NULL;
2843 int i, negative = 0, file_idx;
2844 int sync_file_idx = -1, sync_stream_idx;
2845 char *p, *sync;
2846 char *map;
2847
2848 if (*arg == '-') {
2849 negative = 1;
2850 arg++;
2851 }
2852 map = av_strdup(arg);
2853
2854 /* parse sync stream first, just pick first matching stream */
2855 if (sync = strchr(map, ',')) {
2856 *sync = 0;
2857 sync_file_idx = strtol(sync + 1, &sync, 0);
2858 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2859 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2860 exit_program(1);
2861 }
2862 if (*sync)
2863 sync++;
2864 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2865 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2866 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2867 sync_stream_idx = i;
2868 break;
2869 }
2870 if (i == input_files[sync_file_idx].nb_streams) {
2871 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2872 "match any streams.\n", arg);
2873 exit_program(1);
2874 }
2875 }
2876
2877
2878 file_idx = strtol(map, &p, 0);
2879 if (file_idx >= nb_input_files || file_idx < 0) {
2880 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2881 exit_program(1);
2882 }
2883 if (negative)
2884 /* disable some already defined maps */
2885 for (i = 0; i < o->nb_stream_maps; i++) {
2886 m = &o->stream_maps[i];
2887 if (file_idx == m->file_index &&
2888 check_stream_specifier(input_files[m->file_index].ctx,
2889 input_files[m->file_index].ctx->streams[m->stream_index],
2890 *p == ':' ? p + 1 : p) > 0)
2891 m->disabled = 1;
2892 }
2893 else
2894 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2895 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2896 *p == ':' ? p + 1 : p) <= 0)
2897 continue;
2898 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2899 &o->nb_stream_maps, o->nb_stream_maps + 1);
2900 m = &o->stream_maps[o->nb_stream_maps - 1];
2901
2902 m->file_index = file_idx;
2903 m->stream_index = i;
2904
2905 if (sync_file_idx >= 0) {
2906 m->sync_file_index = sync_file_idx;
2907 m->sync_stream_index = sync_stream_idx;
2908 } else {
2909 m->sync_file_index = file_idx;
2910 m->sync_stream_index = i;
2911 }
2912 }
2913
2914 if (!m) {
2915 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2916 exit_program(1);
2917 }
2918
2919 av_freep(&map);
2920 return 0;
2921 }
2922
2923 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2924 {
2925 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2926 &o->nb_attachments, o->nb_attachments + 1);
2927 o->attachments[o->nb_attachments - 1] = arg;
2928 return 0;
2929 }
2930
2931 /**
2932 * Parse a metadata specifier in arg.
2933 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2934 * @param index for type c/p, chapter/program index is written here
2935 * @param stream_spec for type s, the stream specifier is written here
2936 */
2937 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2938 {
2939 if (*arg) {
2940 *type = *arg;
2941 switch (*arg) {
2942 case 'g':
2943 break;
2944 case 's':
2945 if (*(++arg) && *arg != ':') {
2946 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2947 exit_program(1);
2948 }
2949 *stream_spec = *arg == ':' ? arg + 1 : "";
2950 break;
2951 case 'c':
2952 case 'p':
2953 if (*(++arg) == ':')
2954 *index = strtol(++arg, NULL, 0);
2955 break;
2956 default:
2957 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2958 exit_program(1);
2959 }
2960 } else
2961 *type = 'g';
2962 }
2963
2964 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
2965 {
2966 AVDictionary **meta_in = NULL;
2967 AVDictionary **meta_out;
2968 int i, ret = 0;
2969 char type_in, type_out;
2970 const char *istream_spec = NULL, *ostream_spec = NULL;
2971 int idx_in = 0, idx_out = 0;
2972
2973 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
2974 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
2975
2976 if (type_in == 'g' || type_out == 'g')
2977 o->metadata_global_manual = 1;
2978 if (type_in == 's' || type_out == 's')
2979 o->metadata_streams_manual = 1;
2980 if (type_in == 'c' || type_out == 'c')
2981 o->metadata_chapters_manual = 1;
2982
2983 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2984 if ((index) < 0 || (index) >= (nb_elems)) {\
2985 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
2986 (desc), (index));\
2987 exit_program(1);\
2988 }
2989
2990 #define SET_DICT(type, meta, context, index)\
2991 switch (type) {\
2992 case 'g':\
2993 meta = &context->metadata;\
2994 break;\
2995 case 'c':\
2996 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
2997 meta = &context->chapters[index]->metadata;\
2998 break;\
2999 case 'p':\
3000 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3001 meta = &context->programs[index]->metadata;\
3002 break;\
3003 }\
3004
3005 SET_DICT(type_in, meta_in, ic, idx_in);
3006 SET_DICT(type_out, meta_out, oc, idx_out);
3007
3008 /* for input streams choose first matching stream */
3009 if (type_in == 's') {
3010 for (i = 0; i < ic->nb_streams; i++) {
3011 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3012 meta_in = &ic->streams[i]->metadata;
3013 break;
3014 } else if (ret < 0)
3015 exit_program(1);
3016 }
3017 if (!meta_in) {
3018 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3019 exit_program(1);
3020 }
3021 }
3022
3023 if (type_out == 's') {
3024 for (i = 0; i < oc->nb_streams; i++) {
3025 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3026 meta_out = &oc->streams[i]->metadata;
3027 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3028 } else if (ret < 0)
3029 exit_program(1);
3030 }
3031 } else
3032 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3033
3034 return 0;
3035 }
3036
3037 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3038 {
3039 const char *codec_string = encoder ? "encoder" : "decoder";
3040 AVCodec *codec;
3041
3042 codec = encoder ?
3043 avcodec_find_encoder_by_name(name) :
3044 avcodec_find_decoder_by_name(name);
3045 if (!codec) {
3046 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3047 exit_program(1);
3048 }
3049 if (codec->type != type) {
3050 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3051 exit_program(1);
3052 }
3053 return codec;
3054 }
3055
3056 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3057 {
3058 char *codec_name = NULL;
3059
3060 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3061 if (codec_name) {
3062 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3063 st->codec->codec_id = codec->id;
3064 return codec;
3065 } else
3066 return avcodec_find_decoder(st->codec->codec_id);
3067 }
3068
3069 /**
3070 * Add all the streams from the given input file to the global
3071 * list of input streams.
3072 */
3073 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3074 {
3075 int i, rfps, rfps_base;
3076
3077 for (i = 0; i < ic->nb_streams; i++) {
3078 AVStream *st = ic->streams[i];
3079 AVCodecContext *dec = st->codec;
3080 InputStream *ist;
3081
3082 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3083 ist = &input_streams[nb_input_streams - 1];
3084 ist->st = st;
3085 ist->file_index = nb_input_files;
3086 ist->discard = 1;
3087 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3088
3089 ist->ts_scale = 1.0;
3090 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3091
3092 ist->dec = choose_decoder(o, ic, st);
3093
3094 switch (dec->codec_type) {
3095 case AVMEDIA_TYPE_AUDIO:
3096 if (o->audio_disable)
3097 st->discard = AVDISCARD_ALL;
3098 break;
3099 case AVMEDIA_TYPE_VIDEO:
3100 rfps = ic->streams[i]->r_frame_rate.num;
3101 rfps_base = ic->streams[i]->r_frame_rate.den;
3102 if (dec->lowres) {
3103 dec->flags |= CODEC_FLAG_EMU_EDGE;
3104 dec->height >>= dec->lowres;
3105 dec->width >>= dec->lowres;
3106 }
3107
3108 if (dec->time_base.den != rfps * dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3109
3110 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",
3111 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3112 (float)rfps / rfps_base, rfps, rfps_base);
3113 }
3114
3115 if (o->video_disable)
3116 st->discard = AVDISCARD_ALL;
3117 else if (video_discard)
3118 st->discard = video_discard;
3119 break;
3120 case AVMEDIA_TYPE_DATA:
3121 break;
3122 case AVMEDIA_TYPE_SUBTITLE:
3123 if (o->subtitle_disable)
3124 st->discard = AVDISCARD_ALL;
3125 break;
3126 case AVMEDIA_TYPE_ATTACHMENT:
3127 case AVMEDIA_TYPE_UNKNOWN:
3128 break;
3129 default:
3130 abort();
3131 }
3132 }
3133 }
3134
3135 static void assert_file_overwrite(const char *filename)
3136 {
3137 if (!file_overwrite &&
3138 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3139 av_strstart(filename, "file:", NULL))) {
3140 if (avio_check(filename, 0) == 0) {
3141 if (!using_stdin) {
3142 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3143 fflush(stderr);
3144 if (!read_yesno()) {
3145 fprintf(stderr, "Not overwriting - exiting\n");
3146 exit_program(1);
3147 }
3148 }
3149 else {
3150 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3151 exit_program(1);
3152 }
3153 }
3154 }
3155 }
3156
3157 static void dump_attachment(AVStream *st, const char *filename)
3158 {
3159 int ret;
3160 AVIOContext *out = NULL;
3161 AVDictionaryEntry *e;
3162
3163 if (!st->codec->extradata_size) {
3164 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3165 nb_input_files - 1, st->index);
3166 return;
3167 }
3168 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3169 filename = e->value;
3170 if (!*filename) {
3171 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3172 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3173 exit_program(1);
3174 }
3175
3176 assert_file_overwrite(filename);
3177
3178 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3179 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3180 filename);
3181 exit_program(1);
3182 }
3183
3184 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3185 avio_flush(out);
3186 avio_close(out);
3187 }
3188
3189 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3190 {
3191 AVFormatContext *ic;
3192 AVInputFormat *file_iformat = NULL;
3193 int err, i, ret;
3194 int64_t timestamp;
3195 uint8_t buf[128];
3196 AVDictionary **opts;
3197 int orig_nb_streams; // number of streams before avformat