Bump lavu minor and add an APIChanges entry for audioconvert functions.
[libav.git] / avconv.c
CommitLineData
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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"
bcb82fe1 34#include "libavresample/avresample.h"
6291d7e4 35#include "libavutil/opt.h"
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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"
64dca32c 47#include "libavutil/imgutils.h"
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48#include "libavformat/os_support.h"
49
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50# include "libavfilter/avfilter.h"
51# include "libavfilter/avfiltergraph.h"
04a14d4d 52# include "libavfilter/buffersrc.h"
ac712309 53# include "libavfilter/buffersink.h"
6291d7e4 54# include "libavfilter/vsrc_buffer.h"
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55
56#if HAVE_SYS_RESOURCE_H
57#include <sys/types.h>
58#include <sys/time.h>
59#include <sys/resource.h>
60#elif HAVE_GETPROCESSTIMES
61#include <windows.h>
62#endif
63#if HAVE_GETPROCESSMEMORYINFO
64#include <windows.h>
65#include <psapi.h>
66#endif
67
68#if HAVE_SYS_SELECT_H
69#include <sys/select.h>
70#endif
71
72#include <time.h>
73
74#include "cmdutils.h"
75
76#include "libavutil/avassert.h"
77
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78#define VSYNC_AUTO -1
79#define VSYNC_PASSTHROUGH 0
80#define VSYNC_CFR 1
81#define VSYNC_VFR 2
82
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83const char program_name[] = "avconv";
84const int program_birth_year = 2000;
85
86/* select an input stream for an output stream */
87typedef struct StreamMap {
8d2e4a7e 88 int disabled; /** 1 is this mapping is disabled by a negative map */
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89 int file_index;
90 int stream_index;
91 int sync_file_index;
92 int sync_stream_index;
3b266da3 93 char *linklabel; /** name of an output link, for mapping lavfi outputs */
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94} StreamMap;
95
96/**
97 * select an input file for an output file
98 */
99typedef struct MetadataMap {
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100 int file; ///< file index
101 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
102 int index; ///< stream/chapter/program number
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103} MetadataMap;
104
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105static const OptionDef options[];
106
6291d7e4 107static int video_discard = 0;
f4ad238c 108static int same_quant = 0;
6291d7e4 109static int do_deinterlace = 0;
6291d7e4 110static int intra_dc_precision = 8;
6291d7e4 111static int qp_hist = 0;
6291d7e4 112
6291d7e4 113static int file_overwrite = 0;
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114static int do_benchmark = 0;
115static int do_hex_dump = 0;
116static int do_pkt_dump = 0;
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117static int do_pass = 0;
118static char *pass_logfilename_prefix = NULL;
e8c04f62 119static int video_sync_method = VSYNC_AUTO;
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120static int audio_sync_method = 0;
121static float audio_drift_threshold = 0.1;
122static int copy_ts = 0;
7bb3e625 123static int copy_tb = 1;
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124static int opt_shortest = 0;
125static char *vstats_filename;
126static FILE *vstats_file;
6291d7e4 127
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128static int audio_volume = 256;
129
130static int exit_on_error = 0;
131static int using_stdin = 0;
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132static int64_t video_size = 0;
133static int64_t audio_size = 0;
134static int64_t extra_size = 0;
135static int nb_frames_dup = 0;
136static int nb_frames_drop = 0;
137static int input_sync;
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138
139static float dts_delta_threshold = 10;
140
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141static int print_stats = 1;
142
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143#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
144
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145typedef struct InputFilter {
146 AVFilterContext *filter;
147 struct InputStream *ist;
148 struct FilterGraph *graph;
cf6c38c6 149 uint8_t *name;
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150} InputFilter;
151
152typedef struct OutputFilter {
153 AVFilterContext *filter;
154 struct OutputStream *ost;
155 struct FilterGraph *graph;
cf6c38c6 156 uint8_t *name;
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157
158 /* temporary storage until stream maps are processed */
159 AVFilterInOut *out_tmp;
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160} OutputFilter;
161
162typedef struct FilterGraph {
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163 int index;
164 const char *graph_desc;
165
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166 AVFilterGraph *graph;
167
168 InputFilter **inputs;
169 int nb_inputs;
170 OutputFilter **outputs;
171 int nb_outputs;
172} FilterGraph;
173
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174typedef struct InputStream {
175 int file_index;
176 AVStream *st;
177 int discard; /* true if stream data should be discarded */
178 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
179 AVCodec *dec;
9179f27c 180 AVFrame *decoded_frame;
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181
182 int64_t start; /* time when read started */
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183 /* predicted dts of the next packet read for this stream or (when there are
184 * several frames in a packet) of the next frame in current packet */
185 int64_t next_dts;
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186 /* dts of the last packet read for this stream */
187 int64_t last_dts;
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188 PtsCorrectionContext pts_ctx;
189 double ts_scale;
190 int is_start; /* is 1 at the start and after a discontinuity */
191 int showed_multi_packet_warning;
192 AVDictionary *opts;
c9cc7629 193 AVRational framerate; /* framerate forced with -r */
64dca32c 194
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195 int resample_height;
196 int resample_width;
197 int resample_pix_fmt;
198
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199 int resample_sample_fmt;
200 int resample_sample_rate;
201 int resample_channels;
202 uint64_t resample_channel_layout;
203
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204 /* a pool of free buffers for decoded data */
205 FrameBuffer *buffer_pool;
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206
207 /* decoded data from this stream goes into all those filters
0ad26cdf 208 * currently video and audio only */
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209 InputFilter **filters;
210 int nb_filters;
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211} InputStream;
212
213typedef struct InputFile {
214 AVFormatContext *ctx;
215 int eof_reached; /* true if eof reached */
216 int ist_index; /* index of first stream in ist_table */
217 int buffer_size; /* current total buffer size */
218 int64_t ts_offset;
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219 int nb_streams; /* number of stream that avconv is aware of; may be different
220 from ctx.nb_streams if new streams appear during av_read_frame() */
f4805328 221 int rate_emu;
6494c001 222} InputFile;
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223
224typedef struct OutputStream {
225 int file_index; /* file index */
226 int index; /* stream index in the output file */
227 int source_index; /* InputStream index */
228 AVStream *st; /* stream in the output file */
229 int encoding_needed; /* true if encoding needed for this stream */
230 int frame_number;
231 /* input pts and corresponding output pts
232 for A/V sync */
7636c8c6 233 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
6291d7e4 234 struct InputStream *sync_ist; /* input stream to sync against */
7636c8c6 235 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
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236 /* pts of the first frame encoded for this stream, used for limiting
237 * recording time */
238 int64_t first_pts;
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239 AVBitStreamFilterContext *bitstream_filters;
240 AVCodec *enc;
96139b5e 241 int64_t max_frames;
836ce905 242 AVFrame *filtered_frame;
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243
244 /* video only */
6291d7e4 245 AVRational frame_rate;
bef737a7 246 int force_fps;
828e0bcb 247 int top_field_first;
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248
249 float frame_aspect_ratio;
560f7774 250 float last_quality;
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251
252 /* forced key frames */
253 int64_t *forced_kf_pts;
254 int forced_kf_count;
255 int forced_kf_index;
256
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257 FILE *logfile;
258
560f7774 259 OutputFilter *filter;
6291d7e4 260 char *avfilter;
6291d7e4 261
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262 int64_t sws_flags;
263 AVDictionary *opts;
264 int is_past_recording_time;
265 int stream_copy;
266 const char *attachment_filename;
267 int copy_initial_nonkeyframes;
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268
269 enum PixelFormat pix_fmts[2];
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270} OutputStream;
271
6291d7e4 272
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273typedef struct OutputFile {
274 AVFormatContext *ctx;
275 AVDictionary *opts;
4288e031 276 int ost_index; /* index of the first stream in output_streams */
ef44a607 277 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 278 int64_t start_time; /* start time in microseconds */
f21f294e 279 uint64_t limit_filesize;
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280} OutputFile;
281
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282static InputStream **input_streams = NULL;
283static int nb_input_streams = 0;
284static InputFile **input_files = NULL;
285static int nb_input_files = 0;
6291d7e4 286
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287static OutputStream **output_streams = NULL;
288static int nb_output_streams = 0;
289static OutputFile **output_files = NULL;
290static int nb_output_files = 0;
af70aa45 291
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292static FilterGraph **filtergraphs;
293int nb_filtergraphs;
294
575ec4e1 295typedef struct OptionsContext {
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296 /* input/output options */
297 int64_t start_time;
7041bb3b 298 const char *format;
6b779ccc 299
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300 SpecifierOpt *codec_names;
301 int nb_codec_names;
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302 SpecifierOpt *audio_channels;
303 int nb_audio_channels;
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304 SpecifierOpt *audio_sample_rate;
305 int nb_audio_sample_rate;
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306 SpecifierOpt *frame_rates;
307 int nb_frame_rates;
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308 SpecifierOpt *frame_sizes;
309 int nb_frame_sizes;
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310 SpecifierOpt *frame_pix_fmts;
311 int nb_frame_pix_fmts;
35e6f8c1 312
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313 /* input options */
314 int64_t input_ts_offset;
f4805328 315 int rate_emu;
6b779ccc 316
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317 SpecifierOpt *ts_scale;
318 int nb_ts_scale;
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319 SpecifierOpt *dump_attachment;
320 int nb_dump_attachment;
33f75d72 321
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322 /* output options */
323 StreamMap *stream_maps;
324 int nb_stream_maps;
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325 /* first item specifies output metadata, second is input */
326 MetadataMap (*meta_data_maps)[2];
327 int nb_meta_data_maps;
328 int metadata_global_manual;
329 int metadata_streams_manual;
330 int metadata_chapters_manual;
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331 const char **attachments;
332 int nb_attachments;
6b779ccc 333
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334 int chapters_input_file;
335
6b779ccc 336 int64_t recording_time;
13ccba50 337 uint64_t limit_filesize;
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338 float mux_preload;
339 float mux_max_delay;
039267f1 340
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341 int video_disable;
342 int audio_disable;
343 int subtitle_disable;
344 int data_disable;
345
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346 /* indexed by output file stream index */
347 int *streamid_map;
348 int nb_streamid_map;
349
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350 SpecifierOpt *metadata;
351 int nb_metadata;
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352 SpecifierOpt *max_frames;
353 int nb_max_frames;
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354 SpecifierOpt *bitstream_filters;
355 int nb_bitstream_filters;
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356 SpecifierOpt *codec_tags;
357 int nb_codec_tags;
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358 SpecifierOpt *sample_fmts;
359 int nb_sample_fmts;
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360 SpecifierOpt *qscale;
361 int nb_qscale;
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362 SpecifierOpt *forced_key_frames;
363 int nb_forced_key_frames;
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364 SpecifierOpt *force_fps;
365 int nb_force_fps;
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366 SpecifierOpt *frame_aspect_ratios;
367 int nb_frame_aspect_ratios;
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368 SpecifierOpt *rc_overrides;
369 int nb_rc_overrides;
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370 SpecifierOpt *intra_matrices;
371 int nb_intra_matrices;
372 SpecifierOpt *inter_matrices;
373 int nb_inter_matrices;
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374 SpecifierOpt *top_field_first;
375 int nb_top_field_first;
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376 SpecifierOpt *metadata_map;
377 int nb_metadata_map;
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378 SpecifierOpt *presets;
379 int nb_presets;
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380 SpecifierOpt *copy_initial_nonkeyframes;
381 int nb_copy_initial_nonkeyframes;
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382 SpecifierOpt *filters;
383 int nb_filters;
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384} OptionsContext;
385
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386#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
387{\
388 int i, ret;\
389 for (i = 0; i < o->nb_ ## name; i++) {\
390 char *spec = o->name[i].specifier;\
391 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
392 outvar = o->name[i].u.type;\
393 else if (ret < 0)\
394 exit_program(1);\
395 }\
396}
397
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398static void reset_options(OptionsContext *o)
399{
400 const OptionDef *po = options;
3b266da3 401 int i;
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402
403 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
404 while (po->name) {
405 void *dst = (uint8_t*)o + po->u.off;
406
407 if (po->flags & OPT_SPEC) {
408 SpecifierOpt **so = dst;
409 int i, *count = (int*)(so + 1);
410 for (i = 0; i < *count; i++) {
411 av_freep(&(*so)[i].specifier);
412 if (po->flags & OPT_STRING)
413 av_freep(&(*so)[i].u.str);
414 }
415 av_freep(so);
416 *count = 0;
417 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
418 av_freep(dst);
419 po++;
420 }
421
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422 for (i = 0; i < o->nb_stream_maps; i++)
423 av_freep(&o->stream_maps[i].linklabel);
575ec4e1 424 av_freep(&o->stream_maps);
847529f8 425 av_freep(&o->meta_data_maps);
495ecfd1 426 av_freep(&o->streamid_map);
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427
428 memset(o, 0, sizeof(*o));
6b779ccc 429
dc26318c 430 o->mux_max_delay = 0.7;
6b779ccc 431 o->recording_time = INT64_MAX;
13ccba50 432 o->limit_filesize = UINT64_MAX;
c5bb372e 433 o->chapters_input_file = INT_MAX;
6b779ccc 434
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435 uninit_opts();
436 init_opts();
437}
438
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439/**
440 * Define a function for building a string containing a list of
441 * allowed formats,
442 */
443#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
444static char *choose_ ## var ## s(OutputStream *ost) \
445{ \
446 if (ost->st->codec->var != none) { \
447 get_name(ost->st->codec->var); \
448 return av_strdup(name); \
449 } else if (ost->enc->supported_list) { \
450 const type *p; \
451 AVIOContext *s = NULL; \
452 uint8_t *ret; \
453 int len; \
454 \
455 if (avio_open_dyn_buf(&s) < 0) \
456 exit_program(1); \
457 \
458 for (p = ost->enc->supported_list; *p != none; p++) { \
459 get_name(*p); \
460 avio_printf(s, "%s" separator, name); \
461 } \
462 len = avio_close_dyn_buf(s, &ret); \
463 ret[len - 1] = 0; \
464 return ret; \
465 } else \
466 return NULL; \
467}
468
469#define GET_PIX_FMT_NAME(pix_fmt)\
470 const char *name = av_get_pix_fmt_name(pix_fmt);
471
472DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
473 GET_PIX_FMT_NAME, ":")
474
475#define GET_SAMPLE_FMT_NAME(sample_fmt)\
476 const char *name = av_get_sample_fmt_name(sample_fmt)
477
478DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
479 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
480
481#define GET_SAMPLE_RATE_NAME(rate)\
482 char name[16];\
483 snprintf(name, sizeof(name), "%d", rate);
484
485DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
486 GET_SAMPLE_RATE_NAME, ",")
487
488#define GET_CH_LAYOUT_NAME(ch_layout)\
489 char name[16];\
490 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
491
492DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
493 GET_CH_LAYOUT_NAME, ",")
494
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495static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
496{
497 FilterGraph *fg = av_mallocz(sizeof(*fg));
498
499 if (!fg)
500 exit_program(1);
3b266da3 501 fg->index = nb_filtergraphs;
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502
503 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
504 fg->nb_outputs + 1);
505 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
506 exit_program(1);
507 fg->outputs[0]->ost = ost;
508 fg->outputs[0]->graph = fg;
509
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510 ost->filter = fg->outputs[0];
511
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512 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
513 fg->nb_inputs + 1);
514 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
515 exit_program(1);
516 fg->inputs[0]->ist = ist;
517 fg->inputs[0]->graph = fg;
518
519 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
520 &ist->nb_filters, ist->nb_filters + 1);
521 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
522
523 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
524 &nb_filtergraphs, nb_filtergraphs + 1);
525 filtergraphs[nb_filtergraphs - 1] = fg;
526
527 return fg;
528}
529
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530static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
531{
532 InputStream *ist;
533 enum AVMediaType type = in->filter_ctx->input_pads[in->pad_idx].type;
534 int i;
535
536 // TODO: support other filter types
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537 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
538 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
539 "currently.\n");
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540 exit_program(1);
541 }
542
543 if (in->name) {
544 AVFormatContext *s;
545 AVStream *st = NULL;
546 char *p;
547 int file_idx = strtol(in->name, &p, 0);
548
1381081c 549 if (file_idx < 0 || file_idx >= nb_input_files) {
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550 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
551 file_idx, fg->graph_desc);
552 exit_program(1);
553 }
554 s = input_files[file_idx]->ctx;
555
556 for (i = 0; i < s->nb_streams; i++) {
557 if (s->streams[i]->codec->codec_type != type)
558 continue;
559 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
560 st = s->streams[i];
561 break;
562 }
563 }
564 if (!st) {
565 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
566 "matches no streams.\n", p, fg->graph_desc);
567 exit_program(1);
568 }
569 ist = input_streams[input_files[file_idx]->ist_index + st->index];
570 } else {
571 /* find the first unused stream of corresponding type */
572 for (i = 0; i < nb_input_streams; i++) {
573 ist = input_streams[i];
574 if (ist->st->codec->codec_type == type && ist->discard)
575 break;
576 }
577 if (i == nb_input_streams) {
578 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
579 "unlabeled input pad %d on filter %s", in->pad_idx,
580 in->filter_ctx->name);
581 exit_program(1);
582 }
583 }
584 ist->discard = 0;
585 ist->decoding_needed = 1;
586 ist->st->discard = AVDISCARD_NONE;
587
588 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
589 &fg->nb_inputs, fg->nb_inputs + 1);
590 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
591 exit_program(1);
592 fg->inputs[fg->nb_inputs - 1]->ist = ist;
593 fg->inputs[fg->nb_inputs - 1]->graph = fg;
594
595 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
596 &ist->nb_filters, ist->nb_filters + 1);
597 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
598}
599
0ad26cdf 600static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
3b266da3 601{
ac712309 602 char *pix_fmts;
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603 OutputStream *ost = ofilter->ost;
604 AVCodecContext *codec = ost->st->codec;
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605 AVFilterContext *last_filter = out->filter_ctx;
606 int pad_idx = out->pad_idx;
607 int ret;
608
3b266da3 609
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610 ret = avfilter_graph_create_filter(&ofilter->filter,
611 avfilter_get_by_name("buffersink"),
612 "out", NULL, pix_fmts, fg->graph);
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613 if (ret < 0)
614 return ret;
615
616 if (codec->width || codec->height) {
617 char args[255];
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618 AVFilterContext *filter;
619
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620 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
621 codec->width,
622 codec->height,
8daf21d5 623 (unsigned)ost->sws_flags);
ac712309 624 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
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625 NULL, args, NULL, fg->graph)) < 0)
626 return ret;
ac712309 627 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
3b266da3 628 return ret;
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629
630 last_filter = filter;
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631 pad_idx = 0;
632 }
633
8daf21d5 634 if ((pix_fmts = choose_pix_fmts(ost))) {
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635 AVFilterContext *filter;
636 if ((ret = avfilter_graph_create_filter(&filter,
637 avfilter_get_by_name("format"),
638 "format", pix_fmts, NULL,
639 fg->graph)) < 0)
640 return ret;
641 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
642 return ret;
643
644 last_filter = filter;
645 pad_idx = 0;
646 av_freep(&pix_fmts);
647 }
648
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649 if (ost->frame_rate.num) {
650 AVFilterContext *fps;
651 char args[255];
652
653 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
654 ost->frame_rate.den);
655 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
656 "fps", args, NULL, fg->graph);
657 if (ret < 0)
658 return ret;
659
660 ret = avfilter_link(last_filter, pad_idx, fps, 0);
661 if (ret < 0)
662 return ret;
663 last_filter = fps;
664 pad_idx = 0;
665 }
666
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667 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
668 return ret;
669
670 return 0;
671}
672
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673static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
674{
675 OutputStream *ost = ofilter->ost;
676 AVCodecContext *codec = ost->st->codec;
677 AVFilterContext *last_filter = out->filter_ctx;
678 int pad_idx = out->pad_idx;
679 char *sample_fmts, *sample_rates, *channel_layouts;
680 int ret;
681
682 ret = avfilter_graph_create_filter(&ofilter->filter,
683 avfilter_get_by_name("abuffersink"),
684 "out", NULL, NULL, fg->graph);
685 if (ret < 0)
686 return ret;
687
688 if (codec->channels && !codec->channel_layout)
689 codec->channel_layout = av_get_default_channel_layout(codec->channels);
690
691 sample_fmts = choose_sample_fmts(ost);
692 sample_rates = choose_sample_rates(ost);
693 channel_layouts = choose_channel_layouts(ost);
694 if (sample_fmts || sample_rates || channel_layouts) {
695 AVFilterContext *format;
696 char args[256];
697 int len = 0;
698
699 if (sample_fmts)
700 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
701 sample_fmts);
702 if (sample_rates)
703 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
704 sample_rates);
705 if (channel_layouts)
706 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
707 channel_layouts);
708 args[len - 1] = 0;
709
710 av_freep(&sample_fmts);
711 av_freep(&sample_rates);
712 av_freep(&channel_layouts);
713
714 ret = avfilter_graph_create_filter(&format,
715 avfilter_get_by_name("aformat"),
716 "aformat", args, NULL, fg->graph);
717 if (ret < 0)
718 return ret;
719
720 ret = avfilter_link(last_filter, pad_idx, format, 0);
721 if (ret < 0)
722 return ret;
723
724 last_filter = format;
725 pad_idx = 0;
726 }
727
728 if (audio_sync_method > 0) {
729 AVFilterContext *async;
730 char args[256];
731 int len = 0;
732
733 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
734 "asyncts audio filter instead.\n");
735
736 if (audio_sync_method > 1)
737 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
738 "max_comp=%d:", audio_sync_method);
739 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
740 audio_drift_threshold);
741
742 ret = avfilter_graph_create_filter(&async,
743 avfilter_get_by_name("asyncts"),
744 "async", args, NULL, fg->graph);
745 if (ret < 0)
746 return ret;
747
748 ret = avfilter_link(last_filter, pad_idx, async, 0);
749 if (ret < 0)
750 return ret;
751
752 last_filter = async;
753 pad_idx = 0;
754 }
755
756 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
757 return ret;
758
759 return 0;
760}
761
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762#define DESCRIBE_FILTER_LINK(f, inout, in) \
763{ \
764 AVFilterContext *ctx = inout->filter_ctx; \
765 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
766 int nb_pads = in ? ctx->input_count : ctx->output_count; \
767 AVIOContext *pb; \
768 \
769 if (avio_open_dyn_buf(&pb) < 0) \
770 exit_program(1); \
771 \
772 avio_printf(pb, "%s", ctx->filter->name); \
773 if (nb_pads > 1) \
774 avio_printf(pb, ":%s", pads[inout->pad_idx].name); \
775 avio_w8(pb, 0); \
776 avio_close_dyn_buf(pb, &f->name); \
777}
778
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779static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
780{
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781 av_freep(&ofilter->name);
782 DESCRIBE_FILTER_LINK(ofilter, out, 0);
783
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784 switch (out->filter_ctx->output_pads[out->pad_idx].type) {
785 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
786 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
787 default: av_assert0(0);
788 }
789}
790
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791static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
792 AVFilterInOut *in)
793{
c9cc7629 794 AVFilterContext *first_filter = in->filter_ctx;
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795 AVFilter *filter = avfilter_get_by_name("buffer");
796 InputStream *ist = ifilter->ist;
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797 AVRational tb = ist->framerate.num ? (AVRational){ist->framerate.den,
798 ist->framerate.num} :
799 ist->st->time_base;
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800 AVRational sar;
801 char args[255];
c9cc7629 802 int pad_idx = in->pad_idx;
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803 int ret;
804
805 sar = ist->st->sample_aspect_ratio.num ?
806 ist->st->sample_aspect_ratio :
807 ist->st->codec->sample_aspect_ratio;
808 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
8daf21d5 809 ist->st->codec->height, ist->st->codec->pix_fmt,
c9cc7629 810 tb.num, tb.den, sar.num, sar.den);
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811
812 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, in->name,
813 args, NULL, fg->graph)) < 0)
814 return ret;
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815
816 if (ist->framerate.num) {
817 AVFilterContext *setpts;
818
819 if ((ret = avfilter_graph_create_filter(&setpts,
820 avfilter_get_by_name("setpts"),
821 "setpts", "N", NULL,
822 fg->graph)) < 0)
823 return ret;
824
825 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
826 return ret;
827
828 first_filter = setpts;
829 pad_idx = 0;
830 }
831
832 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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833 return ret;
834 return 0;
835}
836
837static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
838 AVFilterInOut *in)
839{
8daf21d5 840 AVFilterContext *first_filter = in->filter_ctx;
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841 AVFilter *filter = avfilter_get_by_name("abuffer");
842 InputStream *ist = ifilter->ist;
8daf21d5 843 int pad_idx = in->pad_idx;
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844 char args[255];
845 int ret;
846
847 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
848 ":channel_layout=0x%"PRIx64,
849 ist->st->time_base.num, ist->st->time_base.den,
850 ist->st->codec->sample_rate,
851 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
852 ist->st->codec->channel_layout);
853
854 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
855 in->name, args, NULL,
856 fg->graph)) < 0)
857 return ret;
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858
859 if (audio_sync_method > 0) {
860 AVFilterContext *async;
861 char args[256];
862 int len = 0;
863
864 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
865 "asyncts audio filter instead.\n");
866
867 if (audio_sync_method > 1)
868 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
869 "max_comp=%d:", audio_sync_method);
870 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
871 audio_drift_threshold);
872
873 ret = avfilter_graph_create_filter(&async,
874 avfilter_get_by_name("asyncts"),
875 "async", args, NULL, fg->graph);
876 if (ret < 0)
877 return ret;
878
879 ret = avfilter_link(async, 0, first_filter, pad_idx);
880 if (ret < 0)
881 return ret;
882
883 first_filter = async;
884 pad_idx = 0;
885 }
886 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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887 return ret;
888
889 return 0;
890}
891
892static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
893 AVFilterInOut *in)
894{
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895 av_freep(&ifilter->name);
896 DESCRIBE_FILTER_LINK(ifilter, in, 1);
897
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898 switch (in->filter_ctx->input_pads[in->pad_idx].type) {
899 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
900 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
901 default: av_assert0(0);
902 }
903}
904
8daf21d5 905static int configure_filtergraph(FilterGraph *fg)
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906{
907 AVFilterInOut *inputs, *outputs, *cur;
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908 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
909 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
910 fg->graph_desc;
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911
912 avfilter_graph_free(&fg->graph);
913 if (!(fg->graph = avfilter_graph_alloc()))
914 return AVERROR(ENOMEM);
915
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916 if (simple) {
917 OutputStream *ost = fg->outputs[0]->ost;
918 char args[255];
919 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
920 fg->graph->scale_sws_opts = av_strdup(args);
921 }
922
923 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
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924 return ret;
925
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926 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
927 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
928 "exactly one input and output.\n", graph_desc);
929 return AVERROR(EINVAL);
930 }
931
932 for (cur = inputs; !simple && init && cur; cur = cur->next)
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933 init_input_filter(fg, cur);
934
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935 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
936 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
3b266da3 937 return ret;
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938 avfilter_inout_free(&inputs);
939
8daf21d5 940 if (!init || simple) {
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941 /* we already know the mappings between lavfi outputs and output streams,
942 * so we can finish the setup */
943 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
944 configure_output_filter(fg, fg->outputs[i], cur);
945 avfilter_inout_free(&outputs);
946
947 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
948 return ret;
949 } else {
950 /* wait until output mappings are processed */
951 for (cur = outputs; cur;) {
952 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
953 &fg->nb_outputs, fg->nb_outputs + 1);
954 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
955 exit_program(1);
956 fg->outputs[fg->nb_outputs - 1]->graph = fg;
957 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
958 cur = cur->next;
959 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
960 }
961 }
962
963 return 0;
964}
965
966static int configure_complex_filters(void)
967{
968 int i, ret = 0;
969
970 for (i = 0; i < nb_filtergraphs; i++)
971 if (!filtergraphs[i]->graph &&
8daf21d5 972 (ret = configure_filtergraph(filtergraphs[i])) < 0)
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973 return ret;
974 return 0;
975}
976
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977static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
978{
979 int i;
980 for (i = 0; i < fg->nb_inputs; i++)
981 if (fg->inputs[i]->ist == ist)
982 return 1;
983 return 0;
984}
985
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986static void term_exit(void)
987{
988 av_log(NULL, AV_LOG_QUIET, "");
989}
990
991static volatile int received_sigterm = 0;
992static volatile int received_nb_signals = 0;
993
994static void
995sigterm_handler(int sig)
996{
997 received_sigterm = sig;
998 received_nb_signals++;
999 term_exit();
1000}
1001
1002static void term_init(void)
1003{
7636c8c6 1004 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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1005 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1006#ifdef SIGXCPU
1007 signal(SIGXCPU, sigterm_handler);
1008#endif
1009}
1010
2abe947a 1011static int decode_interrupt_cb(void *ctx)
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1012{
1013 return received_nb_signals > 1;
1014}
1015
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1016static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1017
dad09ff9 1018void exit_program(int ret)
6291d7e4 1019{
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1020 int i, j;
1021
1022 for (i = 0; i < nb_filtergraphs; i++) {
1023 avfilter_graph_free(&filtergraphs[i]->graph);
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1024 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1025 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 1026 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 1027 }
560f7774 1028 av_freep(&filtergraphs[i]->inputs);
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1029 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1030 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 1031 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 1032 }
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1033 av_freep(&filtergraphs[i]->outputs);
1034 av_freep(&filtergraphs[i]);
1035 }
1036 av_freep(&filtergraphs);
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1037
1038 /* close files */
7636c8c6 1039 for (i = 0; i < nb_output_files; i++) {
2e215267 1040 AVFormatContext *s = output_files[i]->ctx;
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1041 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1042 avio_close(s->pb);
1043 avformat_free_context(s);
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1044 av_dict_free(&output_files[i]->opts);
1045 av_freep(&output_files[i]);
6291d7e4 1046 }
1135a071 1047 for (i = 0; i < nb_output_streams; i++) {
2e215267 1048 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
JG
1049 while (bsfc) {
1050 AVBitStreamFilterContext *next = bsfc->next;
1051 av_bitstream_filter_close(bsfc);
1052 bsfc = next;
1053 }
2e215267 1054 output_streams[i]->bitstream_filters = NULL;
ac646076 1055
2e215267 1056 av_freep(&output_streams[i]->avfilter);
836ce905 1057 av_freep(&output_streams[i]->filtered_frame);
2e215267 1058 av_freep(&output_streams[i]);
1135a071 1059 }
7636c8c6 1060 for (i = 0; i < nb_input_files; i++) {
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1061 avformat_close_input(&input_files[i]->ctx);
1062 av_freep(&input_files[i]);
6291d7e4 1063 }
9179f27c 1064 for (i = 0; i < nb_input_streams; i++) {
2e215267 1065 av_freep(&input_streams[i]->decoded_frame);
2e215267 1066 av_dict_free(&input_streams[i]->opts);
3ffa2335 1067 free_buffer_pool(&input_streams[i]->buffer_pool);
560f7774 1068 av_freep(&input_streams[i]->filters);
2e215267 1069 av_freep(&input_streams[i]);
9179f27c 1070 }
6291d7e4 1071
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1072 if (vstats_file)
1073 fclose(vstats_file);
1074 av_free(vstats_filename);
1075
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1076 av_freep(&input_streams);
1077 av_freep(&input_files);
4288e031 1078 av_freep(&output_streams);
af70aa45 1079 av_freep(&output_files);
6291d7e4 1080
6291d7e4 1081 uninit_opts();
6291d7e4 1082
6291d7e4 1083 avfilter_uninit();
776f2bb9 1084 avformat_network_deinit();
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1085
1086 if (received_sigterm) {
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1087 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1088 (int) received_sigterm);
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1089 exit (255);
1090 }
1091
f75e3d25 1092 exit(ret);
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1093}
1094
1095static void assert_avoptions(AVDictionary *m)
1096{
1097 AVDictionaryEntry *t;
1098 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 1099 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
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1100 exit_program(1);
1101 }
1102}
1103
1104static void assert_codec_experimental(AVCodecContext *c, int encoder)
1105{
1106 const char *codec_string = encoder ? "encoder" : "decoder";
1107 AVCodec *codec;
1108 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1109 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 1110 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
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1111 "results.\nAdd '-strict experimental' if you want to use it.\n",
1112 codec_string, c->codec->name);
1113 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1114 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 1115 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
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1116 codec_string, codec->name);
1117 exit_program(1);
1118 }
1119}
1120
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1121/**
1122 * Update the requested input sample format based on the output sample format.
1123 * This is currently only used to request float output from decoders which
1124 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1125 * Ideally this will be removed in the future when decoders do not do format
1126 * conversion and only output in their native format.
1127 */
1128static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1129 AVCodecContext *enc)
1130{
1131 /* if sample formats match or a decoder sample format has already been
1132 requested, just return */
1133 if (enc->sample_fmt == dec->sample_fmt ||
1134 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1135 return;
1136
1137 /* if decoder supports more than one output format */
1138 if (dec_codec && dec_codec->sample_fmts &&
1139 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1140 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1141 const enum AVSampleFormat *p;
1142 int min_dec = -1, min_inc = -1;
1143
1144 /* find a matching sample format in the encoder */
1145 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1146 if (*p == enc->sample_fmt) {
1147 dec->request_sample_fmt = *p;
1148 return;
1149 } else if (*p > enc->sample_fmt) {
1150 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1151 } else
1152 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1153 }
1154
1155 /* if none match, provide the one that matches quality closest */
1156 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1157 enc->sample_fmt - min_dec;
1158 }
1159}
1160
f15f02c2 1161static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 1162{
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1163 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1164 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
1165 int ret;
1166
99932847
AK
1167 /*
1168 * Audio encoders may split the packets -- #frames in != #packets out.
1169 * But there is no reordering, so we can limit the number of output packets
1170 * by simply dropping them here.
1171 * Counting encoded video frames needs to be done separately because of
1172 * reordering, see do_video_out()
1173 */
1174 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
1175 if (ost->frame_number >= ost->max_frames) {
1176 av_free_packet(pkt);
99932847 1177 return;
c9594fe0 1178 }
99932847
AK
1179 ost->frame_number++;
1180 }
1181
7636c8c6
AD
1182 while (bsfc) {
1183 AVPacket new_pkt = *pkt;
1184 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1185 &new_pkt.data, &new_pkt.size,
1186 pkt->data, pkt->size,
1187 pkt->flags & AV_PKT_FLAG_KEY);
1188 if (a > 0) {
6291d7e4 1189 av_free_packet(pkt);
7636c8c6
AD
1190 new_pkt.destruct = av_destruct_packet;
1191 } else if (a < 0) {
e3245b26
AK
1192 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1193 bsfc->filter->name, pkt->stream_index,
1194 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
1195 print_error("", a);
1196 if (exit_on_error)
1197 exit_program(1);
1198 }
7636c8c6 1199 *pkt = new_pkt;
6291d7e4 1200
7636c8c6 1201 bsfc = bsfc->next;
6291d7e4
AK
1202 }
1203
61a09968 1204 pkt->stream_index = ost->index;
7636c8c6
AD
1205 ret = av_interleaved_write_frame(s, pkt);
1206 if (ret < 0) {
6291d7e4
AK
1207 print_error("av_interleaved_write_frame()", ret);
1208 exit_program(1);
1209 }
1210}
1211
1270e12e
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1212static int check_recording_time(OutputStream *ost)
1213{
2e215267 1214 OutputFile *of = output_files[ost->file_index];
1270e12e
AK
1215
1216 if (of->recording_time != INT64_MAX &&
1217 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1218 AV_TIME_BASE_Q) >= 0) {
1219 ost->is_past_recording_time = 1;
1220 return 0;
1221 }
1222 return 1;
1223}
1224
369cb092
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1225static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1226 AVFrame *frame)
ee458cb1
JR
1227{
1228 AVCodecContext *enc = ost->st->codec;
ee458cb1 1229 AVPacket pkt;
369cb092 1230 int got_packet = 0;
ee458cb1
JR
1231
1232 av_init_packet(&pkt);
1233 pkt.data = NULL;
1234 pkt.size = 0;
1235
369cb092
AK
1236 if (!check_recording_time(ost))
1237 return;
1270e12e 1238
369cb092 1239 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 1240 frame->pts = ost->sync_opts;
369cb092 1241 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 1242
ee458cb1
JR
1243 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1244 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1245 exit_program(1);
1246 }
1247
1248 if (got_packet) {
ee458cb1
JR
1249 if (pkt.pts != AV_NOPTS_VALUE)
1250 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
1251 if (pkt.dts != AV_NOPTS_VALUE)
1252 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
1253 if (pkt.duration > 0)
1254 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1255
1256 write_frame(s, &pkt, ost);
1257
1258 audio_size += pkt.size;
1259 }
6291d7e4
AK
1260}
1261
1262static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1263{
1264 AVCodecContext *dec;
1265 AVPicture *picture2;
1266 AVPicture picture_tmp;
1267 uint8_t *buf = 0;
1268
1269 dec = ist->st->codec;
1270
1271 /* deinterlace : must be done before any resize */
1272 if (do_deinterlace) {
1273 int size;
1274
1275 /* create temporary picture */
1276 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1277 buf = av_malloc(size);
6291d7e4
AK
1278 if (!buf)
1279 return;
1280
1281 picture2 = &picture_tmp;
1282 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1283
7636c8c6 1284 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1285 dec->pix_fmt, dec->width, dec->height) < 0) {
1286 /* if error, do not deinterlace */
e3245b26 1287 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1288 av_free(buf);
1289 buf = NULL;
1290 picture2 = picture;
1291 }
1292 } else {
1293 picture2 = picture;
1294 }
1295
1296 if (picture != picture2)
1297 *picture = *picture2;
1298 *bufp = buf;
1299}
1300
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1301static void do_subtitle_out(AVFormatContext *s,
1302 OutputStream *ost,
1303 InputStream *ist,
1304 AVSubtitle *sub,
1305 int64_t pts)
1306{
1307 static uint8_t *subtitle_out = NULL;
1308 int subtitle_out_max_size = 1024 * 1024;
1309 int subtitle_out_size, nb, i;
1310 AVCodecContext *enc;
1311 AVPacket pkt;
1312
1313 if (pts == AV_NOPTS_VALUE) {
e3245b26 1314 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1315 if (exit_on_error)
1316 exit_program(1);
1317 return;
1318 }
1319
1320 enc = ost->st->codec;
1321
1322 if (!subtitle_out) {
1323 subtitle_out = av_malloc(subtitle_out_max_size);
1324 }
1325
1326 /* Note: DVB subtitle need one packet to draw them and one other
1327 packet to clear them */
1328 /* XXX: signal it in the codec context ? */
1329 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1330 nb = 2;
1331 else
1332 nb = 1;
1333
7636c8c6 1334 for (i = 0; i < nb; i++) {
1270e12e
AK
1335 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1336 if (!check_recording_time(ost))
1337 return;
1338
6291d7e4
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1339 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1340 // start_display_time is required to be 0
7636c8c6
AD
1341 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1342 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1343 sub->start_display_time = 0;
1344 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1345 subtitle_out_max_size, sub);
1346 if (subtitle_out_size < 0) {
e3245b26 1347 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1348 exit_program(1);
1349 }
1350
1351 av_init_packet(&pkt);
6291d7e4
AK
1352 pkt.data = subtitle_out;
1353 pkt.size = subtitle_out_size;
7636c8c6 1354 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
AK
1355 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1356 /* XXX: the pts correction is handled here. Maybe handling
1357 it in the codec would be better */
1358 if (i == 0)
1359 pkt.pts += 90 * sub->start_display_time;
1360 else
1361 pkt.pts += 90 * sub->end_display_time;
1362 }
f15f02c2 1363 write_frame(s, &pkt, ost);
6291d7e4
AK
1364 }
1365}
1366
87ef060c
AC
1367static void do_video_out(AVFormatContext *s,
1368 OutputStream *ost,
87ef060c
AC
1369 AVFrame *in_picture,
1370 int *frame_size, float quality)
1371{
74b961db
AK
1372 int ret, format_video_sync;
1373 AVPacket pkt;
1374 AVCodecContext *enc = ost->st->codec;
87ef060c
AC
1375
1376 *frame_size = 0;
1377
553735f5 1378 format_video_sync = video_sync_method;
e8c04f62
AK
1379 if (format_video_sync == VSYNC_AUTO)
1380 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1381 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
74b961db
AK
1382 if (format_video_sync != VSYNC_PASSTHROUGH &&
1383 ost->frame_number &&
1384 in_picture->pts != AV_NOPTS_VALUE &&
1385 in_picture->pts < ost->sync_opts) {
d43040e2
AK
1386 nb_frames_drop++;
1387 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1388 return;
d43040e2 1389 }
87ef060c 1390
74b961db
AK
1391 if (in_picture->pts == AV_NOPTS_VALUE)
1392 in_picture->pts = ost->sync_opts;
1393 ost->sync_opts = in_picture->pts;
1394
1395
1270e12e 1396 if (!ost->frame_number)
74b961db 1397 ost->first_pts = in_picture->pts;
1270e12e 1398
39885a4b
AK
1399 av_init_packet(&pkt);
1400 pkt.data = NULL;
1401 pkt.size = 0;
6291d7e4 1402
39885a4b
AK
1403 if (!check_recording_time(ost) ||
1404 ost->frame_number >= ost->max_frames)
1405 return;
1270e12e 1406
39885a4b
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1407 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1408 enc->codec->id == CODEC_ID_RAWVIDEO) {
1409 /* raw pictures are written as AVPicture structure to
1410 avoid any copies. We support temporarily the older
1411 method. */
1412 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1413 enc->coded_frame->top_field_first = in_picture->top_field_first;
1414 pkt.data = (uint8_t *)in_picture;
1415 pkt.size = sizeof(AVPicture);
1416 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1417 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 1418
39885a4b
AK
1419 write_frame(s, &pkt, ost);
1420 } else {
1421 int got_packet;
1422 AVFrame big_picture;
1423
1424 big_picture = *in_picture;
1425 /* better than nothing: use input picture interlaced
1426 settings */
1427 big_picture.interlaced_frame = in_picture->interlaced_frame;
1428 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1429 if (ost->top_field_first == -1)
1430 big_picture.top_field_first = in_picture->top_field_first;
1431 else
1432 big_picture.top_field_first = !!ost->top_field_first;
1433 }
6291d7e4 1434
39885a4b
AK
1435 /* handles same_quant here. This is not correct because it may
1436 not be a global option */
1437 big_picture.quality = quality;
1438 if (!enc->me_threshold)
1439 big_picture.pict_type = 0;
1440 if (ost->forced_kf_index < ost->forced_kf_count &&
1441 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1442 big_picture.pict_type = AV_PICTURE_TYPE_I;
1443 ost->forced_kf_index++;
1444 }
1445 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1446 if (ret < 0) {
1447 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1448 exit_program(1);
1449 }
6291d7e4 1450
39885a4b
AK
1451 if (got_packet) {
1452 if (pkt.pts != AV_NOPTS_VALUE)
1453 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1454 if (pkt.dts != AV_NOPTS_VALUE)
1455 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1456
39885a4b
AK
1457 write_frame(s, &pkt, ost);
1458 *frame_size = pkt.size;
1459 video_size += pkt.size;
324fbadf 1460
39885a4b
AK
1461 /* if two pass, output log */
1462 if (ost->logfile && enc->stats_out) {
1463 fprintf(ost->logfile, "%s", enc->stats_out);
6291d7e4
AK
1464 }
1465 }
39885a4b
AK
1466 }
1467 ost->sync_opts++;
1468 /*
1469 * For video, number of frames in == number of packets out.
1470 * But there may be reordering, so we can't throw away frames on encoder
1471 * flush, we need to limit them here, before they go into encoder.
1472 */
1473 ost->frame_number++;
6291d7e4
AK
1474}
1475
7636c8c6
AD
1476static double psnr(double d)
1477{
1478 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1479}
1480
1481static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1482 int frame_size)
1483{
1484 AVCodecContext *enc;
1485 int frame_number;
1486 double ti1, bitrate, avg_bitrate;
1487
1488 /* this is executed just the first time do_video_stats is called */
1489 if (!vstats_file) {
1490 vstats_file = fopen(vstats_filename, "w");
1491 if (!vstats_file) {
1492 perror("fopen");
1493 exit_program(1);
1494 }
1495 }
1496
1497 enc = ost->st->codec;
1498 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1499 frame_number = ost->frame_number;
7636c8c6 1500 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1501 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1502 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1503
1504 fprintf(vstats_file,"f_size= %6d ", frame_size);
1505 /* compute pts value */
1506 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1507 if (ti1 < 0.01)
1508 ti1 = 0.01;
1509
7636c8c6 1510 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1511 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1512 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1513 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1514 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1515 }
1516}
1517
560f7774
AK
1518/* check for new output on any of the filtergraphs */
1519static int poll_filters(void)
1520{
1521 AVFilterBufferRef *picref;
1522 AVFrame *filtered_frame = NULL;
ac712309 1523 int i, frame_size;
560f7774
AK
1524
1525 for (i = 0; i < nb_output_streams; i++) {
1526 OutputStream *ost = output_streams[i];
1527 OutputFile *of = output_files[ost->file_index];
369cb092 1528 int ret = 0;
560f7774 1529
bb7431f4 1530 if (!ost->filter)
560f7774
AK
1531 continue;
1532
1533 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1534 return AVERROR(ENOMEM);
1535 } else
1536 avcodec_get_frame_defaults(ost->filtered_frame);
1537 filtered_frame = ost->filtered_frame;
1538
bb7431f4 1539 while (ret >= 0 && !ost->is_past_recording_time) {
369cb092
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1540 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1541 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1542 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1543 ost->st->codec->frame_size);
1544 else
1545 ret = av_buffersink_read(ost->filter->filter, &picref);
1546
1547 if (ret < 0)
1548 break;
1549
ac712309 1550 avfilter_copy_buf_props(filtered_frame, picref);
74b961db 1551 if (picref->pts != AV_NOPTS_VALUE)
369cb092
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1552 filtered_frame->pts = av_rescale_q(picref->pts,
1553 ost->filter->filter->inputs[0]->time_base,
1554 ost->st->codec->time_base) -
1555 av_rescale_q(of->start_time,
1556 AV_TIME_BASE_Q,
1557 ost->st->codec->time_base);
560f7774 1558
01e98b1b
AK
1559 if (of->start_time && filtered_frame->pts < of->start_time) {
1560 avfilter_unref_buffer(picref);
1561 continue;
1562 }
560f7774
AK
1563
1564 switch (ost->filter->filter->inputs[0]->type) {
1565 case AVMEDIA_TYPE_VIDEO:
1566 if (!ost->frame_aspect_ratio)
1567 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1568
1569 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1570 same_quant ? ost->last_quality :
1571 ost->st->codec->global_quality);
1572 if (vstats_filename && frame_size)
1573 do_video_stats(of->ctx, ost, frame_size);
1574 break;
369cb092
AK
1575 case AVMEDIA_TYPE_AUDIO:
1576 do_audio_out(of->ctx, ost, filtered_frame);
1577 break;
560f7774 1578 default:
369cb092 1579 // TODO support subtitle filters
560f7774
AK
1580 av_assert0(0);
1581 }
1582
1583 avfilter_unref_buffer(picref);
1584 }
1585 }
1586 return 0;
1587}
1588
ea9367e9 1589static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1590{
1591 char buf[1024];
1592 OutputStream *ost;
1593 AVFormatContext *oc;
1594 int64_t total_size;
1595 AVCodecContext *enc;
1596 int frame_number, vid, i;
1597 double bitrate, ti1, pts;
1598 static int64_t last_time = -1;
1599 static int qp_histogram[52];
1600
3460dd8a
AK
1601 if (!print_stats && !is_last_report)
1602 return;
1603
6291d7e4
AK
1604 if (!is_last_report) {
1605 int64_t cur_time;
1606 /* display the report every 0.5 seconds */
1607 cur_time = av_gettime();
1608 if (last_time == -1) {
1609 last_time = cur_time;
1610 return;
1611 }
1612 if ((cur_time - last_time) < 500000)
1613 return;
1614 last_time = cur_time;
1615 }
1616
1617
2e215267 1618 oc = output_files[0]->ctx;
6291d7e4
AK
1619
1620 total_size = avio_size(oc->pb);
7636c8c6
AD
1621 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1622 total_size = avio_tell(oc->pb);
6291d7e4
AK
1623
1624 buf[0] = '\0';
1625 ti1 = 1e10;
1626 vid = 0;
ea9367e9 1627 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1628 float q = -1;
2e215267 1629 ost = output_streams[i];
6291d7e4 1630 enc = ost->st->codec;
3d813e4c 1631 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1632 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1633 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1634 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1635 }
1636 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1637 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1638
1639 frame_number = ost->frame_number;
1640 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1641 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1642 if (is_last_report)
6291d7e4 1643 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1644 if (qp_hist) {
6291d7e4
AK
1645 int j;
1646 int qp = lrintf(q);
7636c8c6 1647 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1648 qp_histogram[qp]++;
7636c8c6
AD
1649 for (j = 0; j < 32; j++)
1650 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1651 }
7636c8c6 1652 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1653 int j;
7636c8c6
AD
1654 double error, error_sum = 0;
1655 double scale, scale_sum = 0;
1656 char type[3] = { 'Y','U','V' };
6291d7e4 1657 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1658 for (j = 0; j < 3; j++) {
1659 if (is_last_report) {
1660 error = enc->error[j];
1661 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1662 } else {
1663 error = enc->coded_frame->error[j];
1664 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1665 }
7636c8c6
AD
1666 if (j)
1667 scale /= 4;
6291d7e4
AK
1668 error_sum += error;
1669 scale_sum += scale;
7636c8c6 1670 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1671 }
7636c8c6 1672 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1673 }
1674 vid = 1;
1675 }
1676 /* compute min output value */
1677 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1678 if ((pts < ti1) && (pts > 0))
1679 ti1 = pts;
1680 }
1681 if (ti1 < 0.01)
1682 ti1 = 0.01;
1683
e3245b26 1684 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1685
e3245b26 1686 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1687 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1688 (double)total_size / 1024, ti1, bitrate);
1689
e3245b26
AK
1690 if (nb_frames_dup || nb_frames_drop)
1691 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1692 nb_frames_dup, nb_frames_drop);
6291d7e4 1693
f5646a32 1694 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1695
e3245b26 1696 fflush(stderr);
6291d7e4 1697
e3245b26 1698 if (is_last_report) {
6291d7e4 1699 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1700 av_log(NULL, AV_LOG_INFO, "\n");
1701 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1702 video_size / 1024.0,
1703 audio_size / 1024.0,
1704 extra_size / 1024.0,
1705 100.0 * (total_size - raw) / raw
6291d7e4
AK
1706 );
1707 }
1708}
1709
ea9367e9 1710static void flush_encoders(void)
4a4ce2e7
AK
1711{
1712 int i, ret;
1713
ea9367e9 1714 for (i = 0; i < nb_output_streams; i++) {
2e215267 1715 OutputStream *ost = output_streams[i];
6f1c66d5 1716 AVCodecContext *enc = ost->st->codec;
2e215267 1717 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 1718 int stop_encoding = 0;
6f1c66d5 1719
b62b5cb6 1720 if (!ost->encoding_needed)
6f1c66d5
AK
1721 continue;
1722
7636c8c6 1723 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1724 continue;
150ddbc1 1725 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1726 continue;
1727
7636c8c6 1728 for (;;) {
369cb092
AK
1729 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1730 const char *desc;
1731 int64_t *size;
6f1c66d5
AK
1732
1733 switch (ost->st->codec->codec_type) {
1734 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1735 encode = avcodec_encode_audio2;
1736 desc = "Audio";
1737 size = &audio_size;
6f1c66d5
AK
1738 break;
1739 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1740 encode = avcodec_encode_video2;
1741 desc = "Video";
1742 size = &video_size;
1743 break;
1744 default:
1745 stop_encoding = 1;
1746 }
1747
1748 if (encode) {
1749 AVPacket pkt;
1750 int got_packet;
1751 av_init_packet(&pkt);
1752 pkt.data = NULL;
1753 pkt.size = 0;
1754
1755 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1756 if (ret < 0) {
369cb092 1757 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
6f1c66d5
AK
1758 exit_program(1);
1759 }
369cb092 1760 *size += ret;
6f1c66d5
AK
1761 if (ost->logfile && enc->stats_out) {
1762 fprintf(ost->logfile, "%s", enc->stats_out);
1763 }
8e37038a 1764 if (!got_packet) {
ee458cb1
JR
1765 stop_encoding = 1;
1766 break;
1767 }
8e37038a
AK
1768 if (pkt.pts != AV_NOPTS_VALUE)
1769 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1770 if (pkt.dts != AV_NOPTS_VALUE)
1771 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1772 write_frame(os, &pkt, ost);
4a4ce2e7 1773 }
369cb092 1774
ee458cb1 1775 if (stop_encoding)
6f1c66d5 1776 break;
4a4ce2e7
AK
1777 }
1778 }
1779}
1780
7204ec1a
AK
1781/*
1782 * Check whether a packet from ist should be written into ost at this time
1783 */
1784static int check_output_constraints(InputStream *ist, OutputStream *ost)
1785{
2e215267
AK
1786 OutputFile *of = output_files[ost->file_index];
1787 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1788
1789 if (ost->source_index != ist_index)
1790 return 0;
1791
23576b3f 1792 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1793 return 0;
1794
7204ec1a
AK
1795 return 1;
1796}
1797
1798static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1799{
2e215267 1800 OutputFile *of = output_files[ost->file_index];
7204ec1a
AK
1801 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1802 AVPacket opkt;
1803
1804 av_init_packet(&opkt);
1805
1806 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1807 !ost->copy_initial_nonkeyframes)
1808 return;
1809
1270e12e 1810 if (of->recording_time != INT64_MAX &&
23576b3f 1811 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1812 ost->is_past_recording_time = 1;
1813 return;
1814 }
1815
7204ec1a
AK
1816 /* force the input stream PTS */
1817 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1818 audio_size += pkt->size;
1819 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1820 video_size += pkt->size;
1821 ost->sync_opts++;
1822 }
1823
7204ec1a
AK
1824 if (pkt->pts != AV_NOPTS_VALUE)
1825 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1826 else
1827 opkt.pts = AV_NOPTS_VALUE;
1828
1829 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1830 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1831 else
1832 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1833 opkt.dts -= ost_tb_start_time;
1834
1835 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1836 opkt.flags = pkt->flags;
1837
7636c8c6
AD
1838 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1839 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1840 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1841 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1842 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1843 ) {
1844 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1845 opkt.destruct = av_destruct_packet;
1846 } else {
1847 opkt.data = pkt->data;
1848 opkt.size = pkt->size;
1849 }
1850
f15f02c2 1851 write_frame(of->ctx, &opkt, ost);
7204ec1a 1852 ost->st->codec->frame_number++;
7204ec1a
AK
1853 av_free_packet(&opkt);
1854}
1855
2a651b71
AK
1856static void rate_emu_sleep(InputStream *ist)
1857{
2e215267 1858 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1859 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1860 int64_t now = av_gettime() - ist->start;
1861 if (pts > now)
1862 usleep(pts - now);
1863 }
1864}
1865
369cb092
AK
1866static int guess_input_channel_layout(InputStream *ist)
1867{
1868 AVCodecContext *dec = ist->st->codec;
1869
1870 if (!dec->channel_layout) {
1871 char layout_name[256];
1872
1873 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1874 if (!dec->channel_layout)
1875 return 0;
1876 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1877 dec->channels, dec->channel_layout);
1878 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1879 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1880 }
1881 return 1;
1882}
1883
0629f612 1884static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1885{
d1241ff3
JR
1886 AVFrame *decoded_frame;
1887 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1888 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 1889 int i, ret, resample_changed;
ded28ba3 1890
9179f27c 1891 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1892 return AVERROR(ENOMEM);
9179f27c
JR
1893 else
1894 avcodec_get_frame_defaults(ist->decoded_frame);
1895 decoded_frame = ist->decoded_frame;
ded28ba3 1896
d1241ff3
JR
1897 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1898 if (ret < 0) {
ded28ba3 1899 return ret;
d1241ff3 1900 }
ded28ba3 1901
ded28ba3
AK
1902 if (!*got_output) {
1903 /* no audio frame */
369cb092
AK
1904 if (!pkt->size)
1905 for (i = 0; i < ist->nb_filters; i++)
1906 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 1907 return ret;
ded28ba3
AK
1908 }
1909
d1241ff3
JR
1910 /* if the decoder provides a pts, use it instead of the last packet pts.
1911 the decoder could be delaying output by a packet or more. */
1912 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1913 ist->next_dts = decoded_frame->pts;
369cb092
AK
1914 else if (pkt->pts != AV_NOPTS_VALUE) {
1915 decoded_frame->pts = pkt->pts;
1916 pkt->pts = AV_NOPTS_VALUE;
1917 }
ded28ba3
AK
1918
1919 // preprocess audio (volume)
1920 if (audio_volume != 256) {
d1241ff3
JR
1921 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1922 void *samples = decoded_frame->data[0];
1923 switch (avctx->sample_fmt) {
ded28ba3
AK
1924 case AV_SAMPLE_FMT_U8:
1925 {
1926 uint8_t *volp = samples;
1927 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1928 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1929 *volp++ = av_clip_uint8(v);
1930 }
1931 break;
1932 }
1933 case AV_SAMPLE_FMT_S16:
1934 {
1935 int16_t *volp = samples;
1936 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1937 int v = ((*volp) * audio_volume + 128) >> 8;
1938 *volp++ = av_clip_int16(v);
1939 }
1940 break;
1941 }
1942 case AV_SAMPLE_FMT_S32:
1943 {
1944 int32_t *volp = samples;
1945 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1946 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1947 *volp++ = av_clipl_int32(v);
1948 }
1949 break;
1950 }
1951 case AV_SAMPLE_FMT_FLT:
1952 {
1953 float *volp = samples;
1954 float scale = audio_volume / 256.f;
1955 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1956 *volp++ *= scale;
1957 }
1958 break;
1959 }
1960 case AV_SAMPLE_FMT_DBL:
1961 {
1962 double *volp = samples;
1963 double scale = audio_volume / 256.;
1964 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1965 *volp++ *= scale;
1966 }
1967 break;
1968 }
1969 default:
1970 av_log(NULL, AV_LOG_FATAL,
1971 "Audio volume adjustment on sample format %s is not supported.\n",
1972 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1973 exit_program(1);
1974 }
1975 }
1976
1977 rate_emu_sleep(ist);
1978
369cb092
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1979 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1980 ist->resample_channels != avctx->channels ||
1981 ist->resample_channel_layout != decoded_frame->channel_layout ||
1982 ist->resample_sample_rate != decoded_frame->sample_rate;
1983 if (resample_changed) {
1984 char layout1[64], layout2[64];
ded28ba3 1985
369cb092
AK
1986 if (!guess_input_channel_layout(ist)) {
1987 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1988 "layout for Input Stream #%d.%d\n", ist->file_index,
1989 ist->st->index);
1990 exit_program(1);
1991 }
1992 decoded_frame->channel_layout = avctx->channel_layout;
1993
1994 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1995 ist->resample_channel_layout);
1996 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1997 decoded_frame->channel_layout);
1998
1999 av_log(NULL, AV_LOG_INFO,
2000 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
2001 ist->file_index, ist->st->index,
2002 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2003 ist->resample_channels, layout1,
2004 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2005 avctx->channels, layout2);
2006
2007 ist->resample_sample_fmt = decoded_frame->format;
2008 ist->resample_sample_rate = decoded_frame->sample_rate;
2009 ist->resample_channel_layout = decoded_frame->channel_layout;
2010 ist->resample_channels = avctx->channels;
2011
2012 for (i = 0; i < nb_filtergraphs; i++)
2013 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2014 configure_filtergraph(filtergraphs[i]) < 0) {
2015 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2016 exit_program(1);
2017 }
ded28ba3 2018 }
110d2af2 2019
369cb092
AK
2020 for (i = 0; i < ist->nb_filters; i++)
2021 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2022
af8ad892 2023 return ret;
ded28ba3
AK
2024}
2025
0629f612 2026static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 2027{
560f7774 2028 AVFrame *decoded_frame;
45d4b66f 2029 void *buffer_to_free = NULL;
e77c8662 2030 int i, ret = 0, resample_changed;
45d4b66f 2031 float quality;
45d4b66f 2032
9179f27c 2033 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 2034 return AVERROR(ENOMEM);
9179f27c
JR
2035 else
2036 avcodec_get_frame_defaults(ist->decoded_frame);
2037 decoded_frame = ist->decoded_frame;
45d4b66f
AK
2038
2039 ret = avcodec_decode_video2(ist->st->codec,
2040 decoded_frame, got_output, pkt);
2041 if (ret < 0)
9179f27c 2042 return ret;
45d4b66f
AK
2043
2044 quality = same_quant ? decoded_frame->quality : 0;
2045 if (!*got_output) {
2046 /* no picture yet */
89605e4a
AK
2047 if (!pkt->size)
2048 for (i = 0; i < ist->nb_filters; i++)
2049 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 2050 return ret;
45d4b66f 2051 }
b34856a1
AK
2052 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2053 decoded_frame->pkt_dts);
45d4b66f
AK
2054 pkt->size = 0;
2055 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2056
2057 rate_emu_sleep(ist);
2058
695ec04e
AK
2059 if (ist->st->sample_aspect_ratio.num)
2060 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2061
e77c8662
AK
2062 resample_changed = ist->resample_width != decoded_frame->width ||
2063 ist->resample_height != decoded_frame->height ||
2064 ist->resample_pix_fmt != decoded_frame->format;
2065 if (resample_changed) {
2066 av_log(NULL, AV_LOG_INFO,
2067 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2068 ist->file_index, ist->st->index,
2069 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2070 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2071
2072 ist->resample_width = decoded_frame->width;
2073 ist->resample_height = decoded_frame->height;
2074 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 2075
3b266da3
AK
2076 for (i = 0; i < nb_filtergraphs; i++)
2077 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2078 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076
AK
2079 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2080 exit_program(1);
3b266da3
AK
2081 }
2082 }
ac646076 2083
3b266da3 2084 for (i = 0; i < ist->nb_filters; i++) {
560f7774
AK
2085 // XXX what an ugly hack
2086 if (ist->filters[i]->graph->nb_outputs == 1)
2087 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2088
04a14d4d
AK
2089 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2090 FrameBuffer *buf = decoded_frame->opaque;
2091 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2092 decoded_frame->data, decoded_frame->linesize,
2093 AV_PERM_READ | AV_PERM_PRESERVE,
2094 ist->st->codec->width, ist->st->codec->height,
2095 ist->st->codec->pix_fmt);
2096
2097 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
2098 fb->buf->priv = buf;
2099 fb->buf->free = filter_release_buffer;
2100
2101 buf->refcount++;
560f7774 2102 av_buffersrc_buffer(ist->filters[i]->filter, fb);
04a14d4d 2103 } else
720c6b78 2104 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
45d4b66f
AK
2105 }
2106
45d4b66f 2107 av_free(buffer_to_free);
45d4b66f
AK
2108 return ret;
2109}
2110
9595234c
AK
2111static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2112{
2113 AVSubtitle subtitle;
2114 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2115 &subtitle, got_output, pkt);
2116 if (ret < 0)
2117 return ret;
2118 if (!*got_output)
af8ad892 2119 return ret;
9595234c
AK
2120
2121 rate_emu_sleep(ist);
2122
2123 for (i = 0; i < nb_output_streams; i++) {
2e215267 2124 OutputStream *ost = output_streams[i];
9595234c
AK
2125
2126 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2127 continue;
2128
2e215267 2129 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
2130 }
2131
2132 avsubtitle_free(&subtitle);
af8ad892 2133 return ret;
9595234c
AK
2134}
2135
6291d7e4 2136/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 2137static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 2138{
ffa0674e 2139 int i;
6291d7e4 2140 int got_output;
6291d7e4 2141 AVPacket avpkt;
6291d7e4 2142
3101bb66 2143 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2144 ist->next_dts = ist->last_dts;
6291d7e4
AK
2145
2146 if (pkt == NULL) {
2147 /* EOF handling */
2148 av_init_packet(&avpkt);
2149 avpkt.data = NULL;
2150 avpkt.size = 0;
2151 goto handle_eof;
2152 } else {
2153 avpkt = *pkt;
2154 }
2155
7636c8c6 2156 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2157 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 2158
7636c8c6 2159 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2160 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2161 int ret = 0;
6291d7e4 2162 handle_eof:
6291d7e4 2163
23576b3f 2164 ist->last_dts = ist->next_dts;
8b0268a8
AK
2165
2166 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2167 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2168 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2169 ist->showed_multi_packet_warning = 1;
2170 }
6291d7e4 2171
7636c8c6 2172 switch (ist->st->codec->codec_type) {
82963f8f 2173 case AVMEDIA_TYPE_AUDIO:
0629f612 2174 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
2175 break;
2176 case AVMEDIA_TYPE_VIDEO:
0629f612 2177 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
2178 if (avpkt.duration)
2179 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
722410ad
AK
2180 else if (ist->st->r_frame_rate.num)
2181 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2182 ist->st->r_frame_rate.num},
2183 AV_TIME_BASE_Q);
b34856a1
AK
2184 else if (ist->st->codec->time_base.num != 0) {
2185 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2186 ist->st->codec->ticks_per_frame;
2187 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2188 }
82963f8f
AK
2189 break;
2190 case AVMEDIA_TYPE_SUBTITLE:
2191 ret = transcode_subtitles(ist, &avpkt, &got_output);
2192 break;
78162b4e
AK
2193 default:
2194 return -1;
2195 }
6291d7e4 2196
d3c1d37a
AK
2197 if (ret < 0)
2198 return ret;
aa38cff2
JG
2199 // touch data and size only if not EOF
2200 if (pkt) {
2201 avpkt.data += ret;
2202 avpkt.size -= ret;
2203 }
82963f8f 2204 if (!got_output) {
af8ad892 2205 continue;
82963f8f 2206 }
6291d7e4 2207 }
6291d7e4 2208
7204ec1a 2209 /* handle stream copy */
2a651b71
AK
2210 if (!ist->decoding_needed) {
2211 rate_emu_sleep(ist);
23576b3f 2212 ist->last_dts = ist->next_dts;
2a651b71
AK
2213 switch (ist->st->codec->codec_type) {
2214 case AVMEDIA_TYPE_AUDIO:
3101bb66 2215 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2216 ist->st->codec->sample_rate;
2217 break;
2218 case AVMEDIA_TYPE_VIDEO:
2219 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2220 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2221 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2222 ist->st->codec->time_base.num * ticks) /
2223 ist->st->codec->time_base.den;
2224 }
2225 break;
2226 }
2227 }
ea9367e9 2228 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 2229 OutputStream *ost = output_streams[i];
7204ec1a
AK
2230
2231 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2232 continue;
2233
2234 do_streamcopy(ist, ost, pkt);
2235 }
2236
6291d7e4
AK
2237 return 0;
2238}
2239
ea9367e9 2240static void print_sdp(void)
6291d7e4
AK
2241{
2242 char sdp[2048];
af70aa45 2243 int i;
ea9367e9 2244 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2245
2246 if (!avc)
2247 exit_program(1);
ea9367e9 2248 for (i = 0; i < nb_output_files; i++)
2e215267 2249 avc[i] = output_files[i]->ctx;
6291d7e4 2250
ea9367e9 2251 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2252 printf("SDP:\n%s\n", sdp);
2253 fflush(stdout);
af70aa45 2254 av_freep(&avc);
6291d7e4
AK
2255}
2256
ea9367e9 2257static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2258{
2259 int i;
2e215267 2260 InputStream *ist = input_streams[ist_index];
630902a1
AK
2261 if (ist->decoding_needed) {
2262 AVCodec *codec = ist->dec;
630902a1 2263 if (!codec) {
9a414d89 2264 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2265 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2266 return AVERROR(EINVAL);
2267 }
2268
2269 /* update requested sample format for the decoder based on the
2270 corresponding encoder sample format */
2271 for (i = 0; i < nb_output_streams; i++) {
2e215267 2272 OutputStream *ost = output_streams[i];
630902a1
AK
2273 if (ost->source_index == ist_index) {
2274 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2275 break;
2276 }
2277 }
2278
64dca32c
AK
2279 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2280 ist->st->codec->get_buffer = codec_get_buffer;
2281 ist->st->codec->release_buffer = codec_release_buffer;
3ffa2335 2282 ist->st->codec->opaque = &ist->buffer_pool;
64dca32c
AK
2283 }
2284
2473a45c
JG
2285 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2286 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2287 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2288 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2289 ist->file_index, ist->st->index);
2290 return AVERROR(EINVAL);
2291 }
2292 assert_codec_experimental(ist->st->codec, 0);
2293 assert_avoptions(ist->opts);
2294 }
2295
23576b3f 2296 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
3101bb66 2297 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2298 init_pts_correction(&ist->pts_ctx);
2299 ist->is_start = 1;
2300
2301 return 0;
2302}
2303
3b266da3
AK
2304static InputStream *get_input_stream(OutputStream *ost)
2305{
2306 if (ost->source_index >= 0)
2307 return input_streams[ost->source_index];
2308
2309 if (ost->filter) {
2310 FilterGraph *fg = ost->filter->graph;
2311 int i;
2312
2313 for (i = 0; i < fg->nb_inputs; i++)
2314 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2315 return fg->inputs[i]->ist;
2316 }
2317
2318 return NULL;
2319}
2320
ea9367e9 2321static int transcode_init(void)
6291d7e4 2322{
2c474ddb 2323 int ret = 0, i, j, k;
1bb77e51 2324 AVFormatContext *oc;
6291d7e4 2325 AVCodecContext *codec, *icodec;
4288e031 2326 OutputStream *ost;
6291d7e4
AK
2327 InputStream *ist;
2328 char error[1024];
2329 int want_sdp = 1;
b0c9e8e0 2330
f4805328
AK
2331 /* init framerate emulation */
2332 for (i = 0; i < nb_input_files; i++) {
2e215267 2333 InputFile *ifile = input_files[i];
f4805328
AK
2334 if (ifile->rate_emu)
2335 for (j = 0; j < ifile->nb_streams; j++)
2e215267 2336 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 2337 }
6291d7e4
AK
2338
2339 /* output stream init */
03f30c83 2340 for (i = 0; i < nb_output_files; i++) {
2e215267 2341 oc = output_files[i]->ctx;
1bb77e51
AK
2342 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2343 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2344 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2345 return AVERROR(EINVAL);
6291d7e4 2346 }
6291d7e4
AK
2347 }
2348
3b266da3
AK
2349 /* init complex filtergraphs */
2350 for (i = 0; i < nb_filtergraphs; i++)
2351 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2352 return ret;
2353
6291d7e4 2354 /* for each output stream, we compute the right encoding parameters */
4288e031 2355 for (i = 0; i < nb_output_streams; i++) {
2e215267
AK
2356 ost = output_streams[i];
2357 oc = output_files[ost->file_index]->ctx;
3b266da3 2358 ist = get_input_stream(ost);
6291d7e4 2359
4dbc6cee
AK
2360 if (ost->attachment_filename)
2361 continue;
2362
03f30c83 2363 codec = ost->st->codec;
6291d7e4 2364
3b266da3
AK
2365 if (ist) {
2366 icodec = ist->st->codec;
2367
2368 ost->st->disposition = ist->st->disposition;
2369 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2370 codec->chroma_sample_location = icodec->chroma_sample_location;
2371 }
6291d7e4 2372
3d813e4c 2373 if (ost->stream_copy) {
8c4022ac
AK
2374 uint64_t extra_size;
2375
2376 av_assert0(ist && !ost->filter);
2377
2378 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 2379
e6d2b737 2380 if (extra_size > INT_MAX) {
eaf2d37a 2381 return AVERROR(EINVAL);
e6d2b737 2382 }
6291d7e4
AK
2383
2384 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2385 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2386 codec->codec_type = icodec->codec_type;
2387
03f30c83
AK
2388 if (!codec->codec_tag) {
2389 if (!oc->oformat->codec_tag ||
2390 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2391 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2392 codec->codec_tag = icodec->codec_tag;
2393 }
2394
03f30c83 2395 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2396 codec->rc_max_rate = icodec->rc_max_rate;
2397 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2398 codec->field_order = icodec->field_order;
03f30c83 2399 codec->extradata = av_mallocz(extra_size);
e6d2b737 2400 if (!codec->extradata) {
eaf2d37a 2401 return AVERROR(ENOMEM);
e6d2b737 2402 }
6291d7e4 2403 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2404 codec->extradata_size = icodec->extradata_size;
7bb3e625 2405 if (!copy_tb) {
03f30c83 2406 codec->time_base = icodec->time_base;
6291d7e4
AK
2407 codec->time_base.num *= icodec->ticks_per_frame;
2408 av_reduce(&codec->time_base.num, &codec->time_base.den,
2409 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2410 } else
6291d7e4 2411 codec->time_base = ist->st->time_base;
03f30c83 2412
7636c8c6 2413 switch (codec->codec_type) {
6291d7e4 2414 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2415 if (audio_volume != 256) {
e3245b26 2416 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2417 exit_program(1);
2418 }
03f30c83
AK
2419 codec->channel_layout = icodec->channel_layout;
2420 codec->sample_rate = icodec->sample_rate;
2421 codec->channels = icodec->channels;
2422 codec->frame_size = icodec->frame_size;
6291d7e4 2423 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2424 codec->block_align = icodec->block_align;
6291d7e4
AK
2425 break;
2426 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2427 codec->pix_fmt = icodec->pix_fmt;
2428 codec->width = icodec->width;
2429 codec->height = icodec->height;
2430 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2431 if (!codec->sample_aspect_ratio.num) {
03f30c83 2432 codec->sample_aspect_ratio =
6291d7e4
AK
2433 ost->st->sample_aspect_ratio =
2434 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2435 ist->st->codec->sample_aspect_ratio.num ?
2436 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2437 }
2438 break;
2439 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2440 codec->width = icodec->width;
6291d7e4
AK
2441 codec->height = icodec->height;
2442 break;
2443 case AVMEDIA_TYPE_DATA:
3ccd1580 2444 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2445 break;
2446 default:
2447 abort();
2448 }
2449 } else {
2994913d
AK
2450 if (!ost->enc) {
2451 /* should only happen when a default codec is not present. */
2452 snprintf(error, sizeof(error), "Automatic encoder selection "
2453 "failed for output stream #%d:%d. Default encoder for "
2454 "format %s is probably disabled. Please choose an "
2455 "encoder manually.\n", ost->file_index, ost->index,
2456 oc->oformat->name);
2457 ret = AVERROR(EINVAL);
2458 goto dump_format;
2459 }
03f30c83 2460
3b266da3
AK
2461 if (ist)
2462 ist->decoding_needed = 1;
11fdb7e1 2463 ost->encoding_needed = 1;
03f30c83 2464
74b961db
AK
2465 /*
2466 * We want CFR output if and only if one of those is true:
2467 * 1) user specified output framerate with -r
2468 * 2) user specified -vsync cfr
2469 * 3) output format is CFR and the user didn't force vsync to
2470 * something else than CFR
2471 *
2472 * in such a case, set ost->frame_rate
2473 */
2474 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2475 !ost->frame_rate.num && ist &&
2476 (video_sync_method == VSYNC_CFR ||
2477 (video_sync_method == VSYNC_AUTO &&
2478 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2479 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2480 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2481 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2482 ost->frame_rate = ost->enc->supported_framerates[idx];
2483 }
2484 }
2485
369cb092
AK
2486 if (!ost->filter &&
2487 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2488 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
2489 FilterGraph *fg;
2490 fg = init_simple_filtergraph(ist, ost);
8daf21d5 2491 if (configure_filtergraph(fg)) {
3b266da3
AK
2492 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2493 exit(1);
2494 }
369cb092 2495 }
3b266da3 2496
369cb092
AK
2497 switch (codec->codec_type) {
2498 case AVMEDIA_TYPE_AUDIO:
2499 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2500 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2501 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2502 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2503 codec->time_base = (AVRational){ 1, codec->sample_rate };
2504 break;
2505 case AVMEDIA_TYPE_VIDEO:
74b961db 2506 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 2507
3b266da3
AK
2508 codec->width = ost->filter->filter->inputs[0]->w;
2509 codec->height = ost->filter->filter->inputs[0]->h;
2510 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2511 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2512 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2513 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2514 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 2515
9dced854
AK
2516 if (codec->width != icodec->width ||
2517 codec->height != icodec->height ||
2518 codec->pix_fmt != icodec->pix_fmt) {
b7327887
AK
2519 codec->bits_per_raw_sample = 0;
2520 }
2521
6291d7e4
AK
2522 break;
2523 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2524 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2525 break;
2526 default:
2527 abort();
2528 break;
2529 }
2530 /* two pass mode */
515901fa 2531 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2532 char logfilename[1024];
2533 FILE *f;
2534
2535 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2536 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2537 i);
6e8be949
AK
2538 if (!strcmp(ost->enc->name, "libx264")) {
2539 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2540 } else {
64334ddb
AK
2541 if (codec->flags & CODEC_FLAG_PASS1) {
2542 f = fopen(logfilename, "wb");
2543 if (!f) {
2544 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2545 logfilename, strerror(errno));
2546 exit_program(1);
2547 }
2548 ost->logfile = f;
2549 } else {
2550 char *logbuffer;
2551 size_t logbuffer_size;
2552 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2553 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2554 logfilename);
2555 exit_program(1);
2556 }
2557 codec->stats_in = logbuffer;
6291d7e4 2558 }
6e8be949 2559 }
6291d7e4
AK
2560 }
2561 }
6291d7e4
AK
2562 }
2563
2564 /* open each encoder */
4288e031 2565 for (i = 0; i < nb_output_streams; i++) {
2e215267 2566 ost = output_streams[i];
6291d7e4 2567 if (ost->encoding_needed) {
03f30c83 2568 AVCodec *codec = ost->enc;
3b266da3 2569 AVCodecContext *dec = NULL;
3b266da3
AK
2570
2571 if ((ist = get_input_stream(ost)))
2572 dec = ist->st->codec;
2573 if (dec && dec->subtitle_header) {
6291d7e4
AK
2574 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2575 if (!ost->st->codec->subtitle_header) {
2576 ret = AVERROR(ENOMEM);
2577 goto dump_format;
2578 }
2579 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2580 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2581 }
2473a45c
JG
2582 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2583 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2584 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2585 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
6291d7e4
AK
2586 ost->file_index, ost->index);
2587 ret = AVERROR(EINVAL);
2588 goto dump_format;
2589 }
2590 assert_codec_experimental(ost->st->codec, 1);
2591 assert_avoptions(ost->opts);
2592 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2593 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2594 "It takes bits/s as argument, not kbits/s\n");
2595 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2596
2597 if (ost->st->codec->me_threshold)
2e215267 2598 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2599 }
2600 }
2601
630902a1
AK
2602 /* init input streams */
2603 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2604 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2605 goto dump_format;
6291d7e4 2606
2c474ddb
AK
2607 /* discard unused programs */
2608 for (i = 0; i < nb_input_files; i++) {
2e215267 2609 InputFile *ifile = input_files[i];
2c474ddb
AK
2610 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2611 AVProgram *p = ifile->ctx->programs[j];
2612 int discard = AVDISCARD_ALL;
2613
2614 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2615 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2616 discard = AVDISCARD_DEFAULT;
2617 break;
2618 }
2619 p->discard = discard;
2620 }
2621 }
2622
6291d7e4 2623 /* open files and write file headers */
af70aa45 2624 for (i = 0; i < nb_output_files; i++) {
2e215267 2625 oc = output_files[i]->ctx;
1bb77e51 2626 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
2627 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2628 char errbuf[128];
2629 const char *errbuf_ptr = errbuf;
2630 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2631 errbuf_ptr = strerror(AVUNERROR(ret));
2632 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
6291d7e4
AK
2633 ret = AVERROR(EINVAL);
2634 goto dump_format;
2635 }
2e215267 2636 assert_avoptions(output_files[i]->opts);
1bb77e51 2637 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2638 want_sdp = 0;
2639 }
2640 }
2641
2642 dump_format:
2643 /* dump the file output parameters - cannot be done before in case
2644 of stream copy */
03f30c83 2645 for (i = 0; i < nb_output_files; i++) {
2e215267 2646 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2647 }
2648
2649 /* dump the stream mapping */
e3245b26 2650 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2651 for (i = 0; i < nb_input_streams; i++) {
2652 ist = input_streams[i];
2653
2654 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
2655 if (ist->filters[j]->graph->graph_desc) {
2656 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2657 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2658 ist->filters[j]->name);
3b266da3
AK
2659 if (nb_filtergraphs > 1)
2660 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2661 av_log(NULL, AV_LOG_INFO, "\n");
2662 }
2663 }
2664 }
2665
e3245b26 2666 for (i = 0; i < nb_output_streams; i++) {
2e215267 2667 ost = output_streams[i];
4dbc6cee
AK
2668
2669 if (ost->attachment_filename) {
2670 /* an attached file */
2671 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2672 ost->attachment_filename, ost->file_index, ost->index);
2673 continue;
2674 }
3b266da3
AK
2675
2676 if (ost->filter && ost->filter->graph->graph_desc) {
2677 /* output from a complex graph */
cf6c38c6 2678 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2679 if (nb_filtergraphs > 1)
2680 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2681
2682 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2683 ost->index, ost->enc ? ost->enc->name : "?");
2684 continue;
2685 }
2686
9a414d89 2687 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2688 input_streams[ost->source_index]->file_index,
2689 input_streams[ost->source_index]->st->index,
e3245b26
AK
2690 ost->file_index,
2691 ost->index);
2e215267 2692 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2693 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2694 ost->sync_ist->file_index,
2695 ost->sync_ist->st->index);
3d813e4c 2696 if (ost->stream_copy)
e3245b26
AK
2697 av_log(NULL, AV_LOG_INFO, " (copy)");
2698 else
2e215267
AK
2699 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2700 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2701 ost->enc ? ost->enc->name : "?");
2702 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2703 }
2704
2705 if (ret) {
e3245b26 2706 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2707 return ret;
6291d7e4
AK
2708 }
2709
2710 if (want_sdp) {
ea9367e9 2711 print_sdp();
6291d7e4
AK
2712 }
2713
eaf2d37a
AC
2714 return 0;
2715}
2716
2f51ec2b
AK
2717/**
2718 * @return 1 if there are still streams where more output is wanted,
2719 * 0 otherwise
2720 */
2721static int need_output(void)
2722{
2723 int i;
2724
2725 for (i = 0; i < nb_output_streams; i++) {
2726 OutputStream *ost = output_streams[i];
2727 OutputFile *of = output_files[ost->file_index];
2728 AVFormatContext *os = output_files[ost->file_index]->ctx;
2729
2730 if (ost->is_past_recording_time ||
2731 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2732 continue;
e58b75f7 2733 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2734 int j;
2735 for (j = 0; j < of->ctx->nb_streams; j++)
2736 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2737 continue;
2738 }
2739
2740 return 1;
2741 }
2742
2743 return 0;
2744}
2745
a508e7a1
AK
2746static int select_input_file(uint8_t *no_packet)
2747{
2748 int64_t ipts_min = INT64_MAX;
2749 int i, file_index = -1;
2750
2751 for (i = 0; i < nb_input_streams; i++) {
2752 InputStream *ist = input_streams[i];
2753 int64_t ipts = ist->last_dts;
2754
2755 if (ist->discard || no_packet[ist->file_index])
2756 continue;
2757 if (!input_files[ist->file_index]->eof_reached) {
2758 if (ipts < ipts_min) {
2759 ipts_min = ipts;
2760 file_index = ist->file_index;
2761 }
2762 }
2763 }
2764
2765 return file_index;
2766}
2767
eaf2d37a
AC
2768/*
2769 * The following code is the main loop of the file converter
2770 */
ea9367e9 2771static int transcode(void)
eaf2d37a
AC
2772{
2773 int ret, i;
2774 AVFormatContext *is, *os;
2775 OutputStream *ost;
2776 InputStream *ist;
2777 uint8_t *no_packet;
7636c8c6 2778 int no_packet_count = 0;
eaf2d37a
AC
2779 int64_t timer_start;
2780
2781 if (!(no_packet = av_mallocz(nb_input_files)))
2782 exit_program(1);
2783
ea9367e9 2784 ret = transcode_init();
eaf2d37a
AC
2785 if (ret < 0)
2786 goto fail;
2787
e3245b26 2788 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2789 term_init();
2790
2791 timer_start = av_gettime();
2792
7636c8c6 2793 for (; received_sigterm == 0;) {
2f51ec2b 2794 int file_index, ist_index;
6291d7e4 2795 AVPacket pkt;
6291d7e4 2796
3b266da3 2797 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2798 if (!need_output()) {
2799 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2800 break;
2f51ec2b 2801 }
3b266da3 2802
a508e7a1
AK
2803 /* select the stream that we must read now */
2804 file_index = select_input_file(no_packet);
6291d7e4
AK
2805 /* if none, if is finished */
2806 if (file_index < 0) {
7636c8c6
AD
2807 if (no_packet_count) {
2808 no_packet_count = 0;
b0c9e8e0 2809 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2810 usleep(10000);
2811 continue;
2812 }
2813 break;
2814 }
2815
6291d7e4 2816 /* read a frame from it and output it in the fifo */
2e215267 2817 is = input_files[file_index]->ctx;
7636c8c6
AD
2818 ret = av_read_frame(is, &pkt);
2819 if (ret == AVERROR(EAGAIN)) {
2820 no_packet[file_index] = 1;
6291d7e4
AK
2821 no_packet_count++;
2822 continue;
2823 }
2824 if (ret < 0) {
2e215267 2825 input_files[file_index]->eof_reached = 1;
9e8aae44
AK
2826
2827 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
2828 ist = input_streams[input_files[file_index]->ist_index + i];
2829 if (ist->decoding_needed)
2830 output_packet(ist, NULL);
2831 }
2832
6291d7e4
AK
2833 if (opt_shortest)
2834 break;
2835 else
2836 continue;
2837 }
2838
7636c8c6 2839 no_packet_count = 0;
b0c9e8e0 2840 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2841
2842 if (do_pkt_dump) {
2843 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2844 is->streams[pkt.stream_index]);
2845 }
2846 /* the following test is needed in case new streams appear
2847 dynamically in stream : we ignore them */
2e215267 2848 if (pkt.stream_index >= input_files[file_index]->nb_streams)
6291d7e4 2849 goto discard_packet;
2e215267
AK
2850 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2851 ist = input_streams[ist_index];
6291d7e4
AK
2852 if (ist->discard)
2853 goto discard_packet;
2854
2855 if (pkt.dts != AV_NOPTS_VALUE)
2e215267 2856 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2857 if (pkt.pts != AV_NOPTS_VALUE)
2e215267 2858 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2859
7636c8c6 2860 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 2861 pkt.pts *= ist->ts_scale;
7636c8c6 2862 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 2863 pkt.dts *= ist->ts_scale;
6291d7e4 2864
7636c8c6 2865 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 2866 // ist->next_dts,
7636c8c6
AD
2867 // pkt.dts, input_files[ist->file_index].ts_offset,
2868 // ist->st->codec->codec_type);
3101bb66 2869 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 2870 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 2871 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 2872 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 2873 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2e215267 2874 input_files[ist->file_index]->ts_offset -= delta;
7636c8c6
AD
2875 av_log(NULL, AV_LOG_DEBUG,
2876 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2e215267 2877 delta, input_files[ist->file_index]->ts_offset);
6291d7e4 2878 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 2879 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
2880 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2881 }
2882 }
2883
7636c8c6 2884 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
560f7774 2885 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
9a414d89 2886 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 2887 ist->file_index, ist->st->index);
6291d7e4
AK
2888 if (exit_on_error)
2889 exit_program(1);
2890 av_free_packet(&pkt);
b9630bcf 2891 continue;
6291d7e4
AK
2892 }
2893
2894 discard_packet:
2895 av_free_packet(&pkt);
2896
2897 /* dump report by using the output first video and audio streams */
ea9367e9 2898 print_report(0, timer_start);
6291d7e4
AK
2899 }
2900
2901 /* at the end of stream, we must flush the decoder buffers */
2902 for (i = 0; i < nb_input_streams; i++) {
2e215267 2903 ist = input_streams[i];
9e8aae44 2904 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2905 output_packet(ist, NULL);
6291d7e4
AK
2906 }
2907 }
560f7774 2908 poll_filters();
ea9367e9 2909 flush_encoders();
6291d7e4
AK
2910
2911 term_exit();
2912
2913 /* write the trailer if needed and close file */
7636c8c6 2914 for (i = 0; i < nb_output_files; i++) {
2e215267 2915 os = output_files[i]->ctx;
6291d7e4
AK
2916 av_write_trailer(os);
2917 }
2918
2919 /* dump report by using the first video and audio streams */
ea9367e9 2920 print_report(1, timer_start);
6291d7e4
AK
2921
2922 /* close each encoder */
4288e031 2923 for (i = 0; i < nb_output_streams; i++) {
2e215267 2924 ost = output_streams[i];
6291d7e4
AK
2925 if (ost->encoding_needed) {
2926 av_freep(&ost->st->codec->stats_in);
2927 avcodec_close(ost->st->codec);
2928 }
6291d7e4
AK
2929 }
2930
2931 /* close each decoder */
2932 for (i = 0; i < nb_input_streams; i++) {
2e215267 2933 ist = input_streams[i];
6291d7e4
AK
2934 if (ist->decoding_needed) {
2935 avcodec_close(ist->st->codec);
2936 }
2937 }
2938
2939 /* finished ! */
2940 ret = 0;
2941
2942 fail:
b0c9e8e0 2943 av_freep(&no_packet);
6291d7e4 2944
4288e031
AK
2945 if (output_streams) {
2946 for (i = 0; i < nb_output_streams; i++) {
2e215267 2947 ost = output_streams[i];
6291d7e4 2948 if (ost) {
3d813e4c 2949 if (ost->stream_copy)
6291d7e4
AK
2950 av_freep(&ost->st->codec->extradata);
2951 if (ost->logfile) {
2952 fclose(ost->logfile);
2953 ost->logfile = NULL;
2954 }
6291d7e4 2955 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2956 av_free(ost->forced_kf_pts);
6291d7e4 2957 av_dict_free(&ost->opts);
6291d7e4
AK
2958 }
2959 }
6291d7e4
AK
2960 }
2961 return ret;
2962}
2963
ca46fde7 2964static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
2965{
2966 int x = 0, y = 0;
2967 double ar = 0;
2968 const char *p;
2969 char *end;
2970
2971 p = strchr(arg, ':');
2972 if (p) {
2973 x = strtol(arg, &end, 10);
2974 if (end == p)
7636c8c6 2975 y = strtol(end + 1, &end, 10);
6291d7e4
AK
2976 if (x > 0 && y > 0)
2977 ar = (double)x / (double)y;
2978 } else
2979 ar = strtod(arg, NULL);
2980
2981 if (!ar) {
e3245b26 2982 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 2983 exit_program(1);
6291d7e4 2984 }
ca46fde7 2985 return ar;
6291d7e4
AK
2986}
2987
35e6f8c1 2988static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2989{
35e6f8c1 2990 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
2991}
2992
35e6f8c1 2993static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2994{
35e6f8c1 2995 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
2996}
2997
35e6f8c1 2998static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2999{
35e6f8c1 3000 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
3001}
3002
35e6f8c1 3003static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3004{
35e6f8c1 3005 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
3006}
3007
575ec4e1 3008static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3009{
8d2e4a7e
AK
3010 StreamMap *m = NULL;
3011 int i, negative = 0, file_idx;
3012 int sync_file_idx = -1, sync_stream_idx;
3013 char *p, *sync;
3014 char *map;
6291d7e4 3015
8d2e4a7e
AK
3016 if (*arg == '-') {
3017 negative = 1;
3018 arg++;
3019 }
3020 map = av_strdup(arg);
6291d7e4 3021
8d2e4a7e
AK
3022 /* parse sync stream first, just pick first matching stream */
3023 if (sync = strchr(map, ',')) {
3024 *sync = 0;
3025 sync_file_idx = strtol(sync + 1, &sync, 0);
3026 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 3027 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
3028 exit_program(1);
3029 }
3030 if (*sync)
3031 sync++;
2e215267
AK
3032 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3033 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3034 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
8d2e4a7e
AK
3035 sync_stream_idx = i;
3036 break;
3037 }
2e215267 3038 if (i == input_files[sync_file_idx]->nb_streams) {
f24facd3 3039 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
3040 "match any streams.\n", arg);
3041 exit_program(1);
3042 }
3043 }
6291d7e4 3044
8d2e4a7e 3045
3b266da3
AK
3046 if (map[0] == '[') {
3047 /* this mapping refers to lavfi output */
3048 const char *c = map + 1;
3049 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3050 &o->nb_stream_maps, o->nb_stream_maps + 1);
3051 m = &o->stream_maps[o->nb_stream_maps - 1];
3052 m->linklabel = av_get_token(&c, "]");
3053 if (!m->linklabel) {
3054 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3055 exit_program(1);
3056 }
3057 } else {
3e901cbc
AK
3058 file_idx = strtol(map, &p, 0);
3059 if (file_idx >= nb_input_files || file_idx < 0) {
3060 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3061 exit_program(1);
8d2e4a7e 3062 }
3e901cbc
AK
3063 if (negative)
3064 /* disable some already defined maps */
3065 for (i = 0; i < o->nb_stream_maps; i++) {
3066 m = &o->stream_maps[i];
3067 if (file_idx == m->file_index &&
3068 check_stream_specifier(input_files[m->file_index]->ctx,
3069 input_files[m->file_index]->ctx->streams[m->stream_index],
3070 *p == ':' ? p + 1 : p) > 0)
3071 m->disabled = 1;
3072 }
3073 else
3074 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3075 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3076 *p == ':' ? p + 1 : p) <= 0)
3077 continue;
3078 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3079 &o->nb_stream_maps, o->nb_stream_maps + 1);
3080 m = &o->stream_maps[o->nb_stream_maps - 1];
3081
3082 m->file_index = file_idx;
3083 m->stream_index = i;
3084
3085 if (sync_file_idx >= 0) {
3086 m->sync_file_index = sync_file_idx;
3087 m->sync_stream_index = sync_stream_idx;
3088 } else {
3089 m->sync_file_index = file_idx;
3090 m->sync_stream_index = i;
3091 }
8d2e4a7e 3092 }
3b266da3 3093 }
8d2e4a7e
AK
3094
3095 if (!m) {
f24facd3 3096 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
3097 exit_program(1);
3098 }
3099
3100 av_freep(&map);
6291d7e4
AK
3101 return 0;
3102}
3103
4dbc6cee
AK
3104static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3105{
3106 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3107 &o->nb_attachments, o->nb_attachments + 1);
3108 o->attachments[o->nb_attachments - 1] = arg;
3109 return 0;
3110}
3111
a7b5e841
AK
3112/**
3113 * Parse a metadata specifier in arg.
3114 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3115 * @param index for type c/p, chapter/program index is written here
3116 * @param stream_spec for type s, the stream specifier is written here
3117 */
3118static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 3119{
039267f1 3120 if (*arg) {
a2a38d96 3121 *type = *arg;
6291d7e4
AK
3122 switch (*arg) {
3123 case 'g':
3124 break;
3125 case 's':
a7b5e841
AK
3126 if (*(++arg) && *arg != ':') {
3127 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3128 exit_program(1);
3129 }
3130 *stream_spec = *arg == ':' ? arg + 1 : "";
3131 break;
6291d7e4
AK
3132 case 'c':
3133 case 'p':
e6e6060c
AK
3134 if (*(++arg) == ':')
3135 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3136 break;
3137 default:
e3245b26 3138 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3139 exit_program(1);
3140 }
3141 } else
3142 *type = 'g';
3143}
3144
a7b5e841 3145static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3146{
a7b5e841
AK
3147 AVDictionary **meta_in = NULL;
3148 AVDictionary **meta_out;
3149 int i, ret = 0;
3150 char type_in, type_out;
3151 const char *istream_spec = NULL, *ostream_spec = NULL;
3152 int idx_in = 0, idx_out = 0;
6291d7e4 3153
a7b5e841
AK
3154 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3155 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3156
a7b5e841 3157 if (type_in == 'g' || type_out == 'g')
847529f8 3158 o->metadata_global_manual = 1;
a7b5e841 3159 if (type_in == 's' || type_out == 's')
847529f8 3160 o->metadata_streams_manual = 1;
a7b5e841 3161 if (type_in == 'c' || type_out == 'c')
847529f8 3162 o->metadata_chapters_manual = 1;
6291d7e4 3163
a7b5e841
AK
3164#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3165 if ((index) < 0 || (index) >= (nb_elems)) {\
3166 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3167 (desc), (index));\
3168 exit_program(1);\
3169 }
3170
3171#define SET_DICT(type, meta, context, index)\
3172 switch (type) {\
3173 case 'g':\
3174 meta = &context->metadata;\
3175 break;\
3176 case 'c':\
3177 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3178 meta = &context->chapters[index]->metadata;\
3179 break;\
3180 case 'p':\
3181 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3182 meta = &context->programs[index]->metadata;\
3183 break;\
3184 }\
3185
3186 SET_DICT(type_in, meta_in, ic, idx_in);
3187 SET_DICT(type_out, meta_out, oc, idx_out);
3188
3189 /* for input streams choose first matching stream */
3190 if (type_in == 's') {
3191 for (i = 0; i < ic->nb_streams; i++) {
3192 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3193 meta_in = &ic->streams[i]->metadata;
3194 break;
3195 } else if (ret < 0)
3196 exit_program(1);
3197 }
3198 if (!meta_in) {
3199 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3200 exit_program(1);
3201 }
3202 }
3203
3204 if (type_out == 's') {
3205 for (i = 0; i < oc->nb_streams; i++) {
3206 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3207 meta_out = &oc->streams[i]->metadata;
3208 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3209 } else if (ret < 0)
3210 exit_program(1);
3211 }
3212 } else
3213 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3214
6291d7e4
AK
3215 return 0;
3216}
3217
1b648c7c 3218static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3219{
3220 const char *codec_string = encoder ? "encoder" : "decoder";
3221 AVCodec *codec;
3222
169f0647
AK
3223 codec = encoder ?
3224 avcodec_find_encoder_by_name(name) :
3225 avcodec_find_decoder_by_name(name);
7636c8c6 3226 if (!codec) {
f24facd3 3227 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3228 exit_program(1);
3229 }
7636c8c6 3230 if (codec->type != type) {
f24facd3 3231 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3232 exit_program(1);
3233 }
1b648c7c 3234 return codec;
169f0647
AK
3235}
3236
1b648c7c 3237static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3238{
169f0647 3239 char *codec_name = NULL;
169f0647 3240
35e6f8c1 3241 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3242 if (codec_name) {
3243 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3244 st->codec->codec_id = codec->id;
3245 return codec;
3246 } else
3247 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3248}
6291d7e4 3249
88867844
AK
3250/**
3251 * Add all the streams from the given input file to the global
3252 * list of input streams.
3253 */
35e6f8c1 3254static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3255{
c88d5319 3256 int i;
88867844
AK
3257
3258 for (i = 0; i < ic->nb_streams; i++) {
3259 AVStream *st = ic->streams[i];
3260 AVCodecContext *dec = st->codec;
2e215267 3261 InputStream *ist = av_mallocz(sizeof(*ist));
c9cc7629 3262 char *framerate = NULL;
2e215267
AK
3263
3264 if (!ist)
3265 exit_program(1);
88867844 3266
88867844 3267 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2e215267
AK
3268 input_streams[nb_input_streams - 1] = ist;
3269
88867844
AK
3270 ist->st = st;
3271 ist->file_index = nb_input_files;
3272 ist->discard = 1;
13f6917c 3273 st->discard = AVDISCARD_ALL;
88867844
AK
3274 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3275
059fb8c8
AK
3276 ist->ts_scale = 1.0;
3277 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3278
1b648c7c 3279 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3280
3281 switch (dec->codec_type) {
88867844 3282 case AVMEDIA_TYPE_VIDEO:
e77c8662
AK
3283 ist->resample_height = dec->height;
3284 ist->resample_width = dec->width;
3285 ist->resample_pix_fmt = dec->pix_fmt;
3286
c9cc7629
AK
3287 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3288 if (framerate && av_parse_video_rate(&ist->framerate,
3289 framerate) < 0) {
3290 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3291 framerate);
3292 exit_program(1);
3293 }
3294
88867844 3295 break;
13f6917c 3296 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
3297 guess_input_channel_layout(ist);
3298
3299 ist->resample_sample_fmt = dec->sample_fmt;
3300 ist->resample_sample_rate = dec->sample_rate;
3301 ist->resample_channels = dec->channels;
3302 ist->resample_channel_layout = dec->channel_layout;
3303
3304 break;
88867844 3305 case AVMEDIA_TYPE_DATA:
88867844 3306 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3307 case AVMEDIA_TYPE_ATTACHMENT:
3308 case AVMEDIA_TYPE_UNKNOWN:
3309 break;
3310 default:
3311 abort();
3312 }
3313 }
3314}
3315
a2c0b830
AK
3316static void assert_file_overwrite(const char *filename)
3317{
3318 if (!file_overwrite &&
3319 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3320 av_strstart(filename, "file:", NULL))) {
3321 if (avio_check(filename, 0) == 0) {
3322 if (!using_stdin) {
3323 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3324 fflush(stderr);
3325 if (!read_yesno()) {
3326 fprintf(stderr, "Not overwriting - exiting\n");
3327 exit_program(1);
3328 }
3329 }
3330 else {
3331 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3332 exit_program(1);
3333 }
3334 }
3335 }
3336}
3337
3338static void dump_attachment(AVStream *st, const char *filename)
3339{
3340 int ret;
3341 AVIOContext *out = NULL;
3342 AVDictionaryEntry *e;
3343
3344 if (!st->codec->extradata_size) {
3345 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3346 nb_input_files - 1, st->index);
3347 return;
3348 }
3349 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3350 filename = e->value;
3351 if (!*filename) {
3352 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3353 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3354 exit_program(1);
3355 }
3356
3357 assert_file_overwrite(filename);
3358
2abe947a 3359 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3360 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3361 filename);
3362 exit_program(1);
3363 }
3364
3365 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3366 avio_flush(out);
3367 avio_close(out);
3368}
3369
575ec4e1 3370static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3371{
3372 AVFormatContext *ic;
3373 AVInputFormat *file_iformat = NULL;
88867844 3374 int err, i, ret;
6291d7e4
AK
3375 int64_t timestamp;
3376 uint8_t buf[128];
3377 AVDictionary **opts;
3378 int orig_nb_streams; // number of streams before avformat_find_stream_info
3379
7041bb3b
AK
3380 if (o->format) {
3381 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3382 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3383 exit_program(1);
3384 }
6291d7e4
AK
3385 }
3386
3387 if (!strcmp(filename, "-"))
3388 filename = "pipe:";
3389
3390 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3391 !strcmp(filename, "/dev/stdin");
3392
3393 /* get default parameters from command line */
3394 ic = avformat_alloc_context();
3395 if (!ic) {
3396 print_error(filename, AVERROR(ENOMEM));
3397 exit_program(1);
3398 }
e2469ccf
AK
3399 if (o->nb_audio_sample_rate) {
3400 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3401 av_dict_set(&format_opts, "sample_rate", buf, 0);
3402 }
6a11686d 3403 if (o->nb_audio_channels) {
b1041f80
JR
3404 /* because we set audio_channels based on both the "ac" and
3405 * "channel_layout" options, we need to check that the specified
3406 * demuxer actually has the "channels" option before setting it */
3407 if (file_iformat && file_iformat->priv_class &&
3408 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
3409 AV_OPT_SEARCH_FAKE_OBJ)) {
3410 snprintf(buf, sizeof(buf), "%d",
3411 o->audio_channels[o->nb_audio_channels - 1].u.i);
3412 av_dict_set(&format_opts, "channels", buf, 0);
3413 }
6291d7e4 3414 }
91ea4811 3415 if (o->nb_frame_rates) {
c9cc7629
AK
3416 /* set the format-level framerate option;
3417 * this is important for video grabbers, e.g. x11 */
3418 if (file_iformat && file_iformat->priv_class &&
3419 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
3420 AV_OPT_SEARCH_FAKE_OBJ)) {
3421 av_dict_set(&format_opts, "framerate",
3422 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3423 }
6291d7e4 3424 }
d4397b03
AK
3425 if (o->nb_frame_sizes) {
3426 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
6291d7e4 3427 }
b2254d83
AK
3428 if (o->nb_frame_pix_fmts)
3429 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
6291d7e4 3430
6291d7e4 3431 ic->flags |= AVFMT_FLAG_NONBLOCK;
2abe947a 3432 ic->interrupt_callback = int_cb;
6291d7e4
AK
3433
3434 /* open the input file with generic libav function */
3435 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3436 if (err < 0) {
3437 print_error(filename, err);
3438 exit_program(1);
3439 }
3440 assert_avoptions(format_opts);
3441
92f1940e
AK
3442 /* apply forced codec ids */
3443 for (i = 0; i < ic->nb_streams; i++)
1b648c7c 3444 choose_decoder(o, ic, ic->streams[i]);
92f1940e 3445
6291d7e4
AK
3446 /* Set AVCodecContext options for avformat_find_stream_info */
3447 opts = setup_find_stream_info_opts(ic, codec_opts);
3448 orig_nb_streams = ic->nb_streams;
3449
3450 /* If not enough info to get the stream parameters, we decode the
3451 first frames to get it. (used in mpeg case for example) */
3452 ret = avformat_find_stream_info(ic, opts);
e3245b26
AK
3453 if (ret < 0) {
3454 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
cd3716b9 3455 avformat_close_input(&ic);
6291d7e4
AK
3456 exit_program(1);
3457 }
3458
6b779ccc 3459 timestamp = o->start_time;
6291d7e4
AK
3460 /* add the stream start time */
3461 if (ic->start_time != AV_NOPTS_VALUE)
3462 timestamp += ic->start_time;
3463
3464 /* if seeking requested, we execute it */
6b779ccc 3465 if (o->start_time != 0) {
6291d7e4
AK
3466 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3467 if (ret < 0) {
e3245b26
AK
3468 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3469 filename, (double)timestamp / AV_TIME_BASE);
6291d7e4 3470 }
6291d7e4
AK
3471 }
3472
3473 /* update the current parameters so that they match the one of the input stream */
35e6f8c1 3474 add_input_streams(o, ic);
6291d7e4
AK
3475
3476 /* dump the file content */
e3245b26 3477 av_dump_format(ic, nb_input_files, filename, 0);
6291d7e4
AK
3478
3479 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2e215267
AK
3480 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3481 exit_program(1);
3482
3483 input_files[nb_input_files - 1]->ctx = ic;
3484 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3485 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3486 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3487 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
6291d7e4 3488
a2c0b830
AK
3489 for (i = 0; i < o->nb_dump_attachment; i++) {
3490 int j;
3491
3492 for (j = 0; j < ic->nb_streams; j++) {
3493 AVStream *st = ic->streams[j];
3494
3495 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3496 dump_attachment(st, o->dump_attachment[i].u.str);
3497 }
3498 }
3499
6291d7e4
AK
3500 for (i = 0; i < orig_nb_streams; i++)
3501 av_dict_free(&opts[i]);
3502 av_freep(&opts);
575ec4e1
AK
3503
3504 reset_options(o);
6291d7e4
AK
3505 return 0;
3506}
3507
f233cfed
AK
3508static void parse_forced_key_frames(char *kf, OutputStream *ost,
3509 AVCodecContext *avctx)
3510{
3511 char *p;
3512 int n = 1, i;
3513 int64_t t;
3514
3515 for (p = kf; *p; p++)
3516 if (*p == ',')
3517 n++;
3518 ost->forced_kf_count = n;
7636c8c6 3519 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
f233cfed
AK
3520 if (!ost->forced_kf_pts) {
3521 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3522 exit_program(1);
3523 }
3524 for (i = 0; i < n; i++) {
3525 p = i ? strchr(p, ',') + 1 : kf;
3526 t = parse_time_or_die("force_key_frames", p, 1);
3527 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3528 }
3529}
3530
3ec34462
AK
3531static uint8_t *get_line(AVIOContext *s)
3532{
3533 AVIOContext *line;
3534 uint8_t *buf;
3535 char c;
3536
3537 if (avio_open_dyn_buf(&line) < 0) {
3538 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3539 exit_program(1);
3540 }
3541
3542 while ((c = avio_r8(s)) && c != '\n')
3543 avio_w8(line, c);
3544 avio_w8(line, 0);
3545 avio_close_dyn_buf(line, &buf);
3546
3547 return buf;