mpc8: do not leave padding after last frame in buffer for the next decode call
[libav.git] / avconv.c
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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>
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30#include "libavformat/avformat.h"
31#include "libavdevice/avdevice.h"
32#include "libswscale/swscale.h"
bcb82fe1 33#include "libavresample/avresample.h"
6291d7e4 34#include "libavutil/opt.h"
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35#include "libavutil/audioconvert.h"
36#include "libavutil/parseutils.h"
37#include "libavutil/samplefmt.h"
38#include "libavutil/colorspace.h"
39#include "libavutil/fifo.h"
40#include "libavutil/intreadwrite.h"
41#include "libavutil/dict.h"
42#include "libavutil/mathematics.h"
43#include "libavutil/pixdesc.h"
44#include "libavutil/avstring.h"
45#include "libavutil/libm.h"
64dca32c 46#include "libavutil/imgutils.h"
896bb0d7 47#include "libavutil/time.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"
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54
55#if HAVE_SYS_RESOURCE_H
56#include <sys/types.h>
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57#include <sys/resource.h>
58#elif HAVE_GETPROCESSTIMES
59#include <windows.h>
60#endif
61#if HAVE_GETPROCESSMEMORYINFO
62#include <windows.h>
63#include <psapi.h>
64#endif
65
66#if HAVE_SYS_SELECT_H
67#include <sys/select.h>
68#endif
69
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70#if HAVE_PTHREADS
71#include <pthread.h>
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72#endif
73
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74#include <time.h>
75
76#include "cmdutils.h"
77
78#include "libavutil/avassert.h"
79
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80#define VSYNC_AUTO -1
81#define VSYNC_PASSTHROUGH 0
82#define VSYNC_CFR 1
83#define VSYNC_VFR 2
84
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85const char program_name[] = "avconv";
86const int program_birth_year = 2000;
87
88/* select an input stream for an output stream */
89typedef struct StreamMap {
8d2e4a7e 90 int disabled; /** 1 is this mapping is disabled by a negative map */
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91 int file_index;
92 int stream_index;
93 int sync_file_index;
94 int sync_stream_index;
3b266da3 95 char *linklabel; /** name of an output link, for mapping lavfi outputs */
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96} StreamMap;
97
98/**
99 * select an input file for an output file
100 */
101typedef struct MetadataMap {
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102 int file; ///< file index
103 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
104 int index; ///< stream/chapter/program number
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105} MetadataMap;
106
dcb7ef54 107static const OptionDef *options;
6291d7e4 108
6291d7e4 109static int video_discard = 0;
f4ad238c 110static int same_quant = 0;
6291d7e4 111static int do_deinterlace = 0;
6291d7e4 112static int intra_dc_precision = 8;
6291d7e4 113static int qp_hist = 0;
6291d7e4 114
6291d7e4 115static int file_overwrite = 0;
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116static int do_benchmark = 0;
117static int do_hex_dump = 0;
118static int do_pkt_dump = 0;
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119static int do_pass = 0;
120static char *pass_logfilename_prefix = NULL;
e8c04f62 121static int video_sync_method = VSYNC_AUTO;
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122static int audio_sync_method = 0;
123static float audio_drift_threshold = 0.1;
124static int copy_ts = 0;
7bb3e625 125static int copy_tb = 1;
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126static int opt_shortest = 0;
127static char *vstats_filename;
128static FILE *vstats_file;
6291d7e4 129
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130static int audio_volume = 256;
131
132static int exit_on_error = 0;
133static int using_stdin = 0;
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134static int64_t video_size = 0;
135static int64_t audio_size = 0;
136static int64_t extra_size = 0;
137static int nb_frames_dup = 0;
138static int nb_frames_drop = 0;
139static int input_sync;
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140
141static float dts_delta_threshold = 10;
142
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143static int print_stats = 1;
144
47b812e9 145#if HAVE_PTHREADS
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146/* signal to input threads that they should exit; set by the main thread */
147static int transcoding_finished;
148#endif
149
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150#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
151
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152typedef struct InputFilter {
153 AVFilterContext *filter;
154 struct InputStream *ist;
155 struct FilterGraph *graph;
cf6c38c6 156 uint8_t *name;
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157} InputFilter;
158
159typedef struct OutputFilter {
160 AVFilterContext *filter;
161 struct OutputStream *ost;
162 struct FilterGraph *graph;
cf6c38c6 163 uint8_t *name;
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164
165 /* temporary storage until stream maps are processed */
166 AVFilterInOut *out_tmp;
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167} OutputFilter;
168
169typedef struct FilterGraph {
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170 int index;
171 const char *graph_desc;
172
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173 AVFilterGraph *graph;
174
175 InputFilter **inputs;
176 int nb_inputs;
177 OutputFilter **outputs;
178 int nb_outputs;
179} FilterGraph;
180
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181typedef struct InputStream {
182 int file_index;
183 AVStream *st;
184 int discard; /* true if stream data should be discarded */
185 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
186 AVCodec *dec;
9179f27c 187 AVFrame *decoded_frame;
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188
189 int64_t start; /* time when read started */
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190 /* predicted dts of the next packet read for this stream or (when there are
191 * several frames in a packet) of the next frame in current packet */
192 int64_t next_dts;
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193 /* dts of the last packet read for this stream */
194 int64_t last_dts;
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195 PtsCorrectionContext pts_ctx;
196 double ts_scale;
197 int is_start; /* is 1 at the start and after a discontinuity */
198 int showed_multi_packet_warning;
199 AVDictionary *opts;
c9cc7629 200 AVRational framerate; /* framerate forced with -r */
64dca32c 201
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202 int resample_height;
203 int resample_width;
204 int resample_pix_fmt;
205
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206 int resample_sample_fmt;
207 int resample_sample_rate;
208 int resample_channels;
209 uint64_t resample_channel_layout;
210
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211 /* a pool of free buffers for decoded data */
212 FrameBuffer *buffer_pool;
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213
214 /* decoded data from this stream goes into all those filters
0ad26cdf 215 * currently video and audio only */
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216 InputFilter **filters;
217 int nb_filters;
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218} InputStream;
219
220typedef struct InputFile {
221 AVFormatContext *ctx;
222 int eof_reached; /* true if eof reached */
223 int ist_index; /* index of first stream in ist_table */
224 int buffer_size; /* current total buffer size */
225 int64_t ts_offset;
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226 int nb_streams; /* number of stream that avconv is aware of; may be different
227 from ctx.nb_streams if new streams appear during av_read_frame() */
f4805328 228 int rate_emu;
5db5169e 229
47b812e9 230#if HAVE_PTHREADS
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231 pthread_t thread; /* thread reading from this file */
232 int finished; /* the thread has exited */
233 int joined; /* the thread has been joined */
234 pthread_mutex_t fifo_lock; /* lock for access to fifo */
235 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
236 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
237#endif
6494c001 238} InputFile;
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239
240typedef struct OutputStream {
241 int file_index; /* file index */
242 int index; /* stream index in the output file */
243 int source_index; /* InputStream index */
244 AVStream *st; /* stream in the output file */
245 int encoding_needed; /* true if encoding needed for this stream */
246 int frame_number;
247 /* input pts and corresponding output pts
248 for A/V sync */
7636c8c6 249 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
6291d7e4 250 struct InputStream *sync_ist; /* input stream to sync against */
7636c8c6 251 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
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252 /* pts of the first frame encoded for this stream, used for limiting
253 * recording time */
254 int64_t first_pts;
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255 AVBitStreamFilterContext *bitstream_filters;
256 AVCodec *enc;
96139b5e 257 int64_t max_frames;
836ce905 258 AVFrame *filtered_frame;
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259
260 /* video only */
6291d7e4 261 AVRational frame_rate;
bef737a7 262 int force_fps;
828e0bcb 263 int top_field_first;
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264
265 float frame_aspect_ratio;
560f7774 266 float last_quality;
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267
268 /* forced key frames */
269 int64_t *forced_kf_pts;
270 int forced_kf_count;
271 int forced_kf_index;
19ad5673 272 char *forced_keyframes;
6291d7e4 273
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274 FILE *logfile;
275
560f7774 276 OutputFilter *filter;
6291d7e4 277 char *avfilter;
6291d7e4 278
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279 int64_t sws_flags;
280 AVDictionary *opts;
281 int is_past_recording_time;
282 int stream_copy;
283 const char *attachment_filename;
284 int copy_initial_nonkeyframes;
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285
286 enum PixelFormat pix_fmts[2];
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287} OutputStream;
288
6291d7e4 289
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290typedef struct OutputFile {
291 AVFormatContext *ctx;
292 AVDictionary *opts;
4288e031 293 int ost_index; /* index of the first stream in output_streams */
ef44a607 294 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 295 int64_t start_time; /* start time in microseconds */
f21f294e 296 uint64_t limit_filesize;
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297} OutputFile;
298
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299static InputStream **input_streams = NULL;
300static int nb_input_streams = 0;
301static InputFile **input_files = NULL;
302static int nb_input_files = 0;
6291d7e4 303
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304static OutputStream **output_streams = NULL;
305static int nb_output_streams = 0;
306static OutputFile **output_files = NULL;
307static int nb_output_files = 0;
af70aa45 308
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309static FilterGraph **filtergraphs;
310int nb_filtergraphs;
311
575ec4e1 312typedef struct OptionsContext {
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313 /* input/output options */
314 int64_t start_time;
7041bb3b 315 const char *format;
6b779ccc 316
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317 SpecifierOpt *codec_names;
318 int nb_codec_names;
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319 SpecifierOpt *audio_channels;
320 int nb_audio_channels;
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321 SpecifierOpt *audio_sample_rate;
322 int nb_audio_sample_rate;
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323 SpecifierOpt *frame_rates;
324 int nb_frame_rates;
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325 SpecifierOpt *frame_sizes;
326 int nb_frame_sizes;
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327 SpecifierOpt *frame_pix_fmts;
328 int nb_frame_pix_fmts;
35e6f8c1 329
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330 /* input options */
331 int64_t input_ts_offset;
f4805328 332 int rate_emu;
6b779ccc 333
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334 SpecifierOpt *ts_scale;
335 int nb_ts_scale;
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336 SpecifierOpt *dump_attachment;
337 int nb_dump_attachment;
33f75d72 338
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339 /* output options */
340 StreamMap *stream_maps;
341 int nb_stream_maps;
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342 /* first item specifies output metadata, second is input */
343 MetadataMap (*meta_data_maps)[2];
344 int nb_meta_data_maps;
345 int metadata_global_manual;
346 int metadata_streams_manual;
347 int metadata_chapters_manual;
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348 const char **attachments;
349 int nb_attachments;
6b779ccc 350
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351 int chapters_input_file;
352
6b779ccc 353 int64_t recording_time;
13ccba50 354 uint64_t limit_filesize;
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355 float mux_preload;
356 float mux_max_delay;
039267f1 357
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358 int video_disable;
359 int audio_disable;
360 int subtitle_disable;
361 int data_disable;
362
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363 /* indexed by output file stream index */
364 int *streamid_map;
365 int nb_streamid_map;
366
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367 SpecifierOpt *metadata;
368 int nb_metadata;
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369 SpecifierOpt *max_frames;
370 int nb_max_frames;
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371 SpecifierOpt *bitstream_filters;
372 int nb_bitstream_filters;
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373 SpecifierOpt *codec_tags;
374 int nb_codec_tags;
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375 SpecifierOpt *sample_fmts;
376 int nb_sample_fmts;
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377 SpecifierOpt *qscale;
378 int nb_qscale;
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379 SpecifierOpt *forced_key_frames;
380 int nb_forced_key_frames;
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381 SpecifierOpt *force_fps;
382 int nb_force_fps;
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383 SpecifierOpt *frame_aspect_ratios;
384 int nb_frame_aspect_ratios;
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385 SpecifierOpt *rc_overrides;
386 int nb_rc_overrides;
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387 SpecifierOpt *intra_matrices;
388 int nb_intra_matrices;
389 SpecifierOpt *inter_matrices;
390 int nb_inter_matrices;
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391 SpecifierOpt *top_field_first;
392 int nb_top_field_first;
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393 SpecifierOpt *metadata_map;
394 int nb_metadata_map;
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395 SpecifierOpt *presets;
396 int nb_presets;
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397 SpecifierOpt *copy_initial_nonkeyframes;
398 int nb_copy_initial_nonkeyframes;
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399 SpecifierOpt *filters;
400 int nb_filters;
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401} OptionsContext;
402
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403#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
404{\
405 int i, ret;\
406 for (i = 0; i < o->nb_ ## name; i++) {\
407 char *spec = o->name[i].specifier;\
408 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
409 outvar = o->name[i].u.type;\
410 else if (ret < 0)\
411 exit_program(1);\
412 }\
413}
414
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415static void reset_options(OptionsContext *o)
416{
417 const OptionDef *po = options;
3b266da3 418 int i;
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419
420 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
421 while (po->name) {
422 void *dst = (uint8_t*)o + po->u.off;
423
424 if (po->flags & OPT_SPEC) {
425 SpecifierOpt **so = dst;
426 int i, *count = (int*)(so + 1);
427 for (i = 0; i < *count; i++) {
428 av_freep(&(*so)[i].specifier);
429 if (po->flags & OPT_STRING)
430 av_freep(&(*so)[i].u.str);
431 }
432 av_freep(so);
433 *count = 0;
434 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
435 av_freep(dst);
436 po++;
437 }
438
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439 for (i = 0; i < o->nb_stream_maps; i++)
440 av_freep(&o->stream_maps[i].linklabel);
575ec4e1 441 av_freep(&o->stream_maps);
847529f8 442 av_freep(&o->meta_data_maps);
495ecfd1 443 av_freep(&o->streamid_map);
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444
445 memset(o, 0, sizeof(*o));
6b779ccc 446
dc26318c 447 o->mux_max_delay = 0.7;
6b779ccc 448 o->recording_time = INT64_MAX;
13ccba50 449 o->limit_filesize = UINT64_MAX;
c5bb372e 450 o->chapters_input_file = INT_MAX;
6b779ccc 451
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452 uninit_opts();
453 init_opts();
454}
455
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456/**
457 * Define a function for building a string containing a list of
458 * allowed formats,
459 */
460#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
461static char *choose_ ## var ## s(OutputStream *ost) \
462{ \
463 if (ost->st->codec->var != none) { \
464 get_name(ost->st->codec->var); \
465 return av_strdup(name); \
466 } else if (ost->enc->supported_list) { \
467 const type *p; \
468 AVIOContext *s = NULL; \
469 uint8_t *ret; \
470 int len; \
471 \
472 if (avio_open_dyn_buf(&s) < 0) \
473 exit_program(1); \
474 \
475 for (p = ost->enc->supported_list; *p != none; p++) { \
476 get_name(*p); \
477 avio_printf(s, "%s" separator, name); \
478 } \
479 len = avio_close_dyn_buf(s, &ret); \
480 ret[len - 1] = 0; \
481 return ret; \
482 } else \
483 return NULL; \
484}
485
486#define GET_PIX_FMT_NAME(pix_fmt)\
487 const char *name = av_get_pix_fmt_name(pix_fmt);
488
489DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
490 GET_PIX_FMT_NAME, ":")
491
492#define GET_SAMPLE_FMT_NAME(sample_fmt)\
493 const char *name = av_get_sample_fmt_name(sample_fmt)
494
495DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
496 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
497
498#define GET_SAMPLE_RATE_NAME(rate)\
499 char name[16];\
500 snprintf(name, sizeof(name), "%d", rate);
501
502DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
503 GET_SAMPLE_RATE_NAME, ",")
504
505#define GET_CH_LAYOUT_NAME(ch_layout)\
506 char name[16];\
507 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
508
509DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
510 GET_CH_LAYOUT_NAME, ",")
511
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512static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
513{
514 FilterGraph *fg = av_mallocz(sizeof(*fg));
515
516 if (!fg)
517 exit_program(1);
3b266da3 518 fg->index = nb_filtergraphs;
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519
520 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
521 fg->nb_outputs + 1);
522 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
523 exit_program(1);
524 fg->outputs[0]->ost = ost;
525 fg->outputs[0]->graph = fg;
526
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527 ost->filter = fg->outputs[0];
528
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529 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
530 fg->nb_inputs + 1);
531 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
532 exit_program(1);
533 fg->inputs[0]->ist = ist;
534 fg->inputs[0]->graph = fg;
535
536 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
537 &ist->nb_filters, ist->nb_filters + 1);
538 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
539
540 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
541 &nb_filtergraphs, nb_filtergraphs + 1);
542 filtergraphs[nb_filtergraphs - 1] = fg;
543
544 return fg;
545}
546
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547static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
548{
74853ed3 549 InputStream *ist = NULL;
9d0bfc50 550 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
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551 int i;
552
553 // TODO: support other filter types
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554 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
555 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
556 "currently.\n");
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557 exit_program(1);
558 }
559
560 if (in->name) {
561 AVFormatContext *s;
562 AVStream *st = NULL;
563 char *p;
564 int file_idx = strtol(in->name, &p, 0);
565
1381081c 566 if (file_idx < 0 || file_idx >= nb_input_files) {
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567 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
568 file_idx, fg->graph_desc);
569 exit_program(1);
570 }
571 s = input_files[file_idx]->ctx;
572
573 for (i = 0; i < s->nb_streams; i++) {
574 if (s->streams[i]->codec->codec_type != type)
575 continue;
576 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
577 st = s->streams[i];
578 break;
579 }
580 }
581 if (!st) {
582 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
583 "matches no streams.\n", p, fg->graph_desc);
584 exit_program(1);
585 }
586 ist = input_streams[input_files[file_idx]->ist_index + st->index];
587 } else {
588 /* find the first unused stream of corresponding type */
589 for (i = 0; i < nb_input_streams; i++) {
590 ist = input_streams[i];
591 if (ist->st->codec->codec_type == type && ist->discard)
592 break;
593 }
594 if (i == nb_input_streams) {
595 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
596 "unlabeled input pad %d on filter %s", in->pad_idx,
597 in->filter_ctx->name);
598 exit_program(1);
599 }
600 }
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601 av_assert0(ist);
602
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603 ist->discard = 0;
604 ist->decoding_needed = 1;
605 ist->st->discard = AVDISCARD_NONE;
606
607 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
608 &fg->nb_inputs, fg->nb_inputs + 1);
609 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
610 exit_program(1);
611 fg->inputs[fg->nb_inputs - 1]->ist = ist;
612 fg->inputs[fg->nb_inputs - 1]->graph = fg;
613
614 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
615 &ist->nb_filters, ist->nb_filters + 1);
616 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
617}
618
0ad26cdf 619static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
3b266da3 620{
ac712309 621 char *pix_fmts;
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622 OutputStream *ost = ofilter->ost;
623 AVCodecContext *codec = ost->st->codec;
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624 AVFilterContext *last_filter = out->filter_ctx;
625 int pad_idx = out->pad_idx;
626 int ret;
df98bf22 627 char name[255];
3b266da3 628
df98bf22 629 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
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630 ret = avfilter_graph_create_filter(&ofilter->filter,
631 avfilter_get_by_name("buffersink"),
df98bf22 632 name, NULL, pix_fmts, fg->graph);
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633 if (ret < 0)
634 return ret;
635
636 if (codec->width || codec->height) {
637 char args[255];
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638 AVFilterContext *filter;
639
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640 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
641 codec->width,
642 codec->height,
8daf21d5 643 (unsigned)ost->sws_flags);
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644 snprintf(name, sizeof(name), "scaler for output stream %d:%d",
645 ost->file_index, ost->index);
ac712309 646 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
df98bf22 647 name, args, NULL, fg->graph)) < 0)
3b266da3 648 return ret;
ac712309 649 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
3b266da3 650 return ret;
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651
652 last_filter = filter;
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653 pad_idx = 0;
654 }
655
8daf21d5 656 if ((pix_fmts = choose_pix_fmts(ost))) {
ac712309 657 AVFilterContext *filter;
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658 snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
659 ost->file_index, ost->index);
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660 if ((ret = avfilter_graph_create_filter(&filter,
661 avfilter_get_by_name("format"),
662 "format", pix_fmts, NULL,
663 fg->graph)) < 0)
664 return ret;
665 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
666 return ret;
667
668 last_filter = filter;
669 pad_idx = 0;
670 av_freep(&pix_fmts);
671 }
672
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673 if (ost->frame_rate.num) {
674 AVFilterContext *fps;
675 char args[255];
676
677 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
678 ost->frame_rate.den);
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679 snprintf(name, sizeof(name), "fps for output stream %d:%d",
680 ost->file_index, ost->index);
8daf21d5 681 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
df98bf22 682 name, args, NULL, fg->graph);
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683 if (ret < 0)
684 return ret;
685
686 ret = avfilter_link(last_filter, pad_idx, fps, 0);
687 if (ret < 0)
688 return ret;
689 last_filter = fps;
690 pad_idx = 0;
691 }
692
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693 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
694 return ret;
695
696 return 0;
697}
698
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699static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
700{
701 OutputStream *ost = ofilter->ost;
702 AVCodecContext *codec = ost->st->codec;
703 AVFilterContext *last_filter = out->filter_ctx;
704 int pad_idx = out->pad_idx;
705 char *sample_fmts, *sample_rates, *channel_layouts;
df98bf22 706 char name[255];
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707 int ret;
708
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709
710 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
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711 ret = avfilter_graph_create_filter(&ofilter->filter,
712 avfilter_get_by_name("abuffersink"),
df98bf22 713 name, NULL, NULL, fg->graph);
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714 if (ret < 0)
715 return ret;
716
717 if (codec->channels && !codec->channel_layout)
718 codec->channel_layout = av_get_default_channel_layout(codec->channels);
719
720 sample_fmts = choose_sample_fmts(ost);
721 sample_rates = choose_sample_rates(ost);
722 channel_layouts = choose_channel_layouts(ost);
723 if (sample_fmts || sample_rates || channel_layouts) {
724 AVFilterContext *format;
725 char args[256];
726 int len = 0;
727
728 if (sample_fmts)
729 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
730 sample_fmts);
731 if (sample_rates)
732 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
733 sample_rates);
734 if (channel_layouts)
735 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
736 channel_layouts);
737 args[len - 1] = 0;
738
739 av_freep(&sample_fmts);
740 av_freep(&sample_rates);
741 av_freep(&channel_layouts);
742
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743 snprintf(name, sizeof(name), "audio format for output stream %d:%d",
744 ost->file_index, ost->index);
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745 ret = avfilter_graph_create_filter(&format,
746 avfilter_get_by_name("aformat"),
df98bf22 747 name, args, NULL, fg->graph);
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748 if (ret < 0)
749 return ret;
750
751 ret = avfilter_link(last_filter, pad_idx, format, 0);
752 if (ret < 0)
753 return ret;
754
755 last_filter = format;
756 pad_idx = 0;
757 }
758
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759 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
760 return ret;
761
762 return 0;
763}
764
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765#define DESCRIBE_FILTER_LINK(f, inout, in) \
766{ \
767 AVFilterContext *ctx = inout->filter_ctx; \
768 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
769 int nb_pads = in ? ctx->input_count : ctx->output_count; \
770 AVIOContext *pb; \
771 \
772 if (avio_open_dyn_buf(&pb) < 0) \
773 exit_program(1); \
774 \
775 avio_printf(pb, "%s", ctx->filter->name); \
776 if (nb_pads > 1) \
9d0bfc50 777 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
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778 avio_w8(pb, 0); \
779 avio_close_dyn_buf(pb, &f->name); \
780}
781
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782static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
783{
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784 av_freep(&ofilter->name);
785 DESCRIBE_FILTER_LINK(ofilter, out, 0);
786
9d0bfc50 787 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
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788 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
789 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
790 default: av_assert0(0);
791 }
792}
793
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794static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
795 AVFilterInOut *in)
796{
c9cc7629 797 AVFilterContext *first_filter = in->filter_ctx;
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798 AVFilter *filter = avfilter_get_by_name("buffer");
799 InputStream *ist = ifilter->ist;
82494835 800 AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
c9cc7629 801 ist->st->time_base;
a977d91e 802 AVRational sar;
df98bf22 803 char args[255], name[255];
c9cc7629 804 int pad_idx = in->pad_idx;
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805 int ret;
806
807 sar = ist->st->sample_aspect_ratio.num ?
808 ist->st->sample_aspect_ratio :
809 ist->st->codec->sample_aspect_ratio;
810 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
8daf21d5 811 ist->st->codec->height, ist->st->codec->pix_fmt,
c9cc7629 812 tb.num, tb.den, sar.num, sar.den);
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813 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
814 ist->file_index, ist->st->index);
a977d91e 815
df98bf22 816 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
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817 args, NULL, fg->graph)) < 0)
818 return ret;
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819
820 if (ist->framerate.num) {
821 AVFilterContext *setpts;
822
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823 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
824 ist->file_index, ist->st->index);
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825 if ((ret = avfilter_graph_create_filter(&setpts,
826 avfilter_get_by_name("setpts"),
df98bf22 827 name, "N", NULL,
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828 fg->graph)) < 0)
829 return ret;
830
831 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
832 return ret;
833
834 first_filter = setpts;
835 pad_idx = 0;
836 }
837
838 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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839 return ret;
840 return 0;
841}
842
843static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
844 AVFilterInOut *in)
845{
8daf21d5 846 AVFilterContext *first_filter = in->filter_ctx;
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847 AVFilter *filter = avfilter_get_by_name("abuffer");
848 InputStream *ist = ifilter->ist;
8daf21d5 849 int pad_idx = in->pad_idx;
df98bf22 850 char args[255], name[255];
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851 int ret;
852
853 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
854 ":channel_layout=0x%"PRIx64,
715129cd 855 1, ist->st->codec->sample_rate,
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856 ist->st->codec->sample_rate,
857 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
858 ist->st->codec->channel_layout);
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859 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
860 ist->file_index, ist->st->index);
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861
862 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
df98bf22 863 name, args, NULL,
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864 fg->graph)) < 0)
865 return ret;
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866
867 if (audio_sync_method > 0) {
868 AVFilterContext *async;
869 char args[256];
870 int len = 0;
871
872 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
873 "asyncts audio filter instead.\n");
874
875 if (audio_sync_method > 1)
876 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
877 "max_comp=%d:", audio_sync_method);
878 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
879 audio_drift_threshold);
880
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881 snprintf(name, sizeof(name), "graph %d audio sync for input stream %d:%d",
882 fg->index, ist->file_index, ist->st->index);
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883 ret = avfilter_graph_create_filter(&async,
884 avfilter_get_by_name("asyncts"),
df98bf22 885 name, args, NULL, fg->graph);
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886 if (ret < 0)
887 return ret;
888
889 ret = avfilter_link(async, 0, first_filter, pad_idx);
890 if (ret < 0)
891 return ret;
892
893 first_filter = async;
894 pad_idx = 0;
895 }
896 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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897 return ret;
898
899 return 0;
900}
901
902static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
903 AVFilterInOut *in)
904{
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905 av_freep(&ifilter->name);
906 DESCRIBE_FILTER_LINK(ifilter, in, 1);
907
9d0bfc50 908 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
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909 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
910 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
911 default: av_assert0(0);
912 }
913}
914
8daf21d5 915static int configure_filtergraph(FilterGraph *fg)
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916{
917 AVFilterInOut *inputs, *outputs, *cur;
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918 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
919 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
920 fg->graph_desc;
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921
922 avfilter_graph_free(&fg->graph);
923 if (!(fg->graph = avfilter_graph_alloc()))
924 return AVERROR(ENOMEM);
925
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926 if (simple) {
927 OutputStream *ost = fg->outputs[0]->ost;
928 char args[255];
929 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
930 fg->graph->scale_sws_opts = av_strdup(args);
931 }
932
933 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
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934 return ret;
935
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936 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
937 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
938 "exactly one input and output.\n", graph_desc);
939 return AVERROR(EINVAL);
940 }
941
942 for (cur = inputs; !simple && init && cur; cur = cur->next)
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943 init_input_filter(fg, cur);
944
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945 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
946 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
3b266da3 947 return ret;
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948 avfilter_inout_free(&inputs);
949
8daf21d5 950 if (!init || simple) {
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951 /* we already know the mappings between lavfi outputs and output streams,
952 * so we can finish the setup */
953 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
954 configure_output_filter(fg, fg->outputs[i], cur);
955 avfilter_inout_free(&outputs);
956
957 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
958 return ret;
959 } else {
960 /* wait until output mappings are processed */
961 for (cur = outputs; cur;) {
962 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
963 &fg->nb_outputs, fg->nb_outputs + 1);
964 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
965 exit_program(1);
966 fg->outputs[fg->nb_outputs - 1]->graph = fg;
967 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
968 cur = cur->next;
969 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
970 }
971 }
972
973 return 0;
974}
975
976static int configure_complex_filters(void)
977{
978 int i, ret = 0;
979
980 for (i = 0; i < nb_filtergraphs; i++)
981 if (!filtergraphs[i]->graph &&
8daf21d5 982 (ret = configure_filtergraph(filtergraphs[i])) < 0)
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983 return ret;
984 return 0;
985}
986
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987static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
988{
989 int i;
990 for (i = 0; i < fg->nb_inputs; i++)
991 if (fg->inputs[i]->ist == ist)
992 return 1;
993 return 0;
994}
995
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996static void term_exit(void)
997{
998 av_log(NULL, AV_LOG_QUIET, "");
999}
1000
1001static volatile int received_sigterm = 0;
1002static volatile int received_nb_signals = 0;
1003
1004static void
1005sigterm_handler(int sig)
1006{
1007 received_sigterm = sig;
1008 received_nb_signals++;
1009 term_exit();
1010}
1011
1012static void term_init(void)
1013{
7636c8c6 1014 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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1015 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1016#ifdef SIGXCPU
1017 signal(SIGXCPU, sigterm_handler);
1018#endif
1019}
1020
2abe947a 1021static int decode_interrupt_cb(void *ctx)
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1022{
1023 return received_nb_signals > 1;
1024}
1025
2abe947a
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1026static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1027
dad09ff9 1028void exit_program(int ret)
6291d7e4 1029{
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1030 int i, j;
1031
1032 for (i = 0; i < nb_filtergraphs; i++) {
1033 avfilter_graph_free(&filtergraphs[i]->graph);
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1034 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1035 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 1036 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 1037 }
560f7774 1038 av_freep(&filtergraphs[i]->inputs);
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1039 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1040 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 1041 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 1042 }
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1043 av_freep(&filtergraphs[i]->outputs);
1044 av_freep(&filtergraphs[i]);
1045 }
1046 av_freep(&filtergraphs);
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1047
1048 /* close files */
7636c8c6 1049 for (i = 0; i < nb_output_files; i++) {
2e215267 1050 AVFormatContext *s = output_files[i]->ctx;
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1051 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1052 avio_close(s->pb);
1053 avformat_free_context(s);
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1054 av_dict_free(&output_files[i]->opts);
1055 av_freep(&output_files[i]);
6291d7e4 1056 }
1135a071 1057 for (i = 0; i < nb_output_streams; i++) {
2e215267 1058 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
JG
1059 while (bsfc) {
1060 AVBitStreamFilterContext *next = bsfc->next;
1061 av_bitstream_filter_close(bsfc);
1062 bsfc = next;
1063 }
2e215267 1064 output_streams[i]->bitstream_filters = NULL;
ac646076 1065
19ad5673 1066 av_freep(&output_streams[i]->forced_keyframes);
2e215267 1067 av_freep(&output_streams[i]->avfilter);
836ce905 1068 av_freep(&output_streams[i]->filtered_frame);
2e215267 1069 av_freep(&output_streams[i]);
1135a071 1070 }
7636c8c6 1071 for (i = 0; i < nb_input_files; i++) {
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1072 avformat_close_input(&input_files[i]->ctx);
1073 av_freep(&input_files[i]);
6291d7e4 1074 }
9179f27c 1075 for (i = 0; i < nb_input_streams; i++) {
2e215267 1076 av_freep(&input_streams[i]->decoded_frame);
2e215267 1077 av_dict_free(&input_streams[i]->opts);
3ffa2335 1078 free_buffer_pool(&input_streams[i]->buffer_pool);
560f7774 1079 av_freep(&input_streams[i]->filters);
2e215267 1080 av_freep(&input_streams[i]);
9179f27c 1081 }
6291d7e4 1082
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1083 if (vstats_file)
1084 fclose(vstats_file);
1085 av_free(vstats_filename);
1086
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1087 av_freep(&input_streams);
1088 av_freep(&input_files);
4288e031 1089 av_freep(&output_streams);
af70aa45 1090 av_freep(&output_files);
6291d7e4 1091
6291d7e4 1092 uninit_opts();
6291d7e4 1093
6291d7e4 1094 avfilter_uninit();
776f2bb9 1095 avformat_network_deinit();
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1096
1097 if (received_sigterm) {
e3245b26
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1098 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1099 (int) received_sigterm);
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1100 exit (255);
1101 }
1102
f75e3d25 1103 exit(ret);
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1104}
1105
1106static void assert_avoptions(AVDictionary *m)
1107{
1108 AVDictionaryEntry *t;
1109 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 1110 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
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1111 exit_program(1);
1112 }
1113}
1114
1115static void assert_codec_experimental(AVCodecContext *c, int encoder)
1116{
1117 const char *codec_string = encoder ? "encoder" : "decoder";
1118 AVCodec *codec;
1119 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1120 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 1121 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
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1122 "results.\nAdd '-strict experimental' if you want to use it.\n",
1123 codec_string, c->codec->name);
1124 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1125 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 1126 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4
AK
1127 codec_string, codec->name);
1128 exit_program(1);
1129 }
1130}
1131
6291d7e4
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1132/**
1133 * Update the requested input sample format based on the output sample format.
1134 * This is currently only used to request float output from decoders which
1135 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1136 * Ideally this will be removed in the future when decoders do not do format
1137 * conversion and only output in their native format.
1138 */
1139static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1140 AVCodecContext *enc)
1141{
1142 /* if sample formats match or a decoder sample format has already been
1143 requested, just return */
1144 if (enc->sample_fmt == dec->sample_fmt ||
1145 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1146 return;
1147
1148 /* if decoder supports more than one output format */
1149 if (dec_codec && dec_codec->sample_fmts &&
1150 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1151 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1152 const enum AVSampleFormat *p;
1153 int min_dec = -1, min_inc = -1;
1154
1155 /* find a matching sample format in the encoder */
1156 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1157 if (*p == enc->sample_fmt) {
1158 dec->request_sample_fmt = *p;
1159 return;
1160 } else if (*p > enc->sample_fmt) {
1161 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1162 } else
1163 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1164 }
1165
1166 /* if none match, provide the one that matches quality closest */
1167 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1168 enc->sample_fmt - min_dec;
1169 }
1170}
1171
f15f02c2 1172static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 1173{
f15f02c2
AK
1174 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1175 AVCodecContext *avctx = ost->st->codec;
6291d7e4
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1176 int ret;
1177
99932847
AK
1178 /*
1179 * Audio encoders may split the packets -- #frames in != #packets out.
1180 * But there is no reordering, so we can limit the number of output packets
1181 * by simply dropping them here.
1182 * Counting encoded video frames needs to be done separately because of
1183 * reordering, see do_video_out()
1184 */
1185 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
1186 if (ost->frame_number >= ost->max_frames) {
1187 av_free_packet(pkt);
99932847 1188 return;
c9594fe0 1189 }
99932847
AK
1190 ost->frame_number++;
1191 }
1192
7636c8c6
AD
1193 while (bsfc) {
1194 AVPacket new_pkt = *pkt;
1195 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1196 &new_pkt.data, &new_pkt.size,
1197 pkt->data, pkt->size,
1198 pkt->flags & AV_PKT_FLAG_KEY);
1199 if (a > 0) {
6291d7e4 1200 av_free_packet(pkt);
7636c8c6
AD
1201 new_pkt.destruct = av_destruct_packet;
1202 } else if (a < 0) {
e3245b26
AK
1203 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1204 bsfc->filter->name, pkt->stream_index,
1205 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
1206 print_error("", a);
1207 if (exit_on_error)
1208 exit_program(1);
1209 }
7636c8c6 1210 *pkt = new_pkt;
6291d7e4 1211
7636c8c6 1212 bsfc = bsfc->next;
6291d7e4
AK
1213 }
1214
61a09968 1215 pkt->stream_index = ost->index;
7636c8c6
AD
1216 ret = av_interleaved_write_frame(s, pkt);
1217 if (ret < 0) {
6291d7e4
AK
1218 print_error("av_interleaved_write_frame()", ret);
1219 exit_program(1);
1220 }
1221}
1222
1270e12e
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1223static int check_recording_time(OutputStream *ost)
1224{
2e215267 1225 OutputFile *of = output_files[ost->file_index];
1270e12e
AK
1226
1227 if (of->recording_time != INT64_MAX &&
1228 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1229 AV_TIME_BASE_Q) >= 0) {
1230 ost->is_past_recording_time = 1;
1231 return 0;
1232 }
1233 return 1;
1234}
1235
369cb092
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1236static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1237 AVFrame *frame)
ee458cb1
JR
1238{
1239 AVCodecContext *enc = ost->st->codec;
ee458cb1 1240 AVPacket pkt;
369cb092 1241 int got_packet = 0;
ee458cb1
JR
1242
1243 av_init_packet(&pkt);
1244 pkt.data = NULL;
1245 pkt.size = 0;
1246
369cb092
AK
1247 if (!check_recording_time(ost))
1248 return;
1270e12e 1249
369cb092 1250 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 1251 frame->pts = ost->sync_opts;
369cb092 1252 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 1253
ee458cb1
JR
1254 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1255 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1256 exit_program(1);
1257 }
1258
1259 if (got_packet) {
ee458cb1
JR
1260 if (pkt.pts != AV_NOPTS_VALUE)
1261 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
1262 if (pkt.dts != AV_NOPTS_VALUE)
1263 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
1264 if (pkt.duration > 0)
1265 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1266
1267 write_frame(s, &pkt, ost);
1268
1269 audio_size += pkt.size;
1270 }
6291d7e4
AK
1271}
1272
1273static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1274{
1275 AVCodecContext *dec;
1276 AVPicture *picture2;
1277 AVPicture picture_tmp;
1278 uint8_t *buf = 0;
1279
1280 dec = ist->st->codec;
1281
1282 /* deinterlace : must be done before any resize */
1283 if (do_deinterlace) {
1284 int size;
1285
1286 /* create temporary picture */
1287 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1288 buf = av_malloc(size);
6291d7e4
AK
1289 if (!buf)
1290 return;
1291
1292 picture2 = &picture_tmp;
1293 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1294
7636c8c6 1295 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1296 dec->pix_fmt, dec->width, dec->height) < 0) {
1297 /* if error, do not deinterlace */
e3245b26 1298 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1299 av_free(buf);
1300 buf = NULL;
1301 picture2 = picture;
1302 }
1303 } else {
1304 picture2 = picture;
1305 }
1306
1307 if (picture != picture2)
1308 *picture = *picture2;
1309 *bufp = buf;
1310}
1311
6291d7e4
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1312static void do_subtitle_out(AVFormatContext *s,
1313 OutputStream *ost,
1314 InputStream *ist,
1315 AVSubtitle *sub,
1316 int64_t pts)
1317{
1318 static uint8_t *subtitle_out = NULL;
1319 int subtitle_out_max_size = 1024 * 1024;
1320 int subtitle_out_size, nb, i;
1321 AVCodecContext *enc;
1322 AVPacket pkt;
1323
1324 if (pts == AV_NOPTS_VALUE) {
e3245b26 1325 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1326 if (exit_on_error)
1327 exit_program(1);
1328 return;
1329 }
1330
1331 enc = ost->st->codec;
1332
1333 if (!subtitle_out) {
1334 subtitle_out = av_malloc(subtitle_out_max_size);
1335 }
1336
1337 /* Note: DVB subtitle need one packet to draw them and one other
1338 packet to clear them */
1339 /* XXX: signal it in the codec context ? */
36ef5369 1340 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
6291d7e4
AK
1341 nb = 2;
1342 else
1343 nb = 1;
1344
7636c8c6 1345 for (i = 0; i < nb; i++) {
1270e12e
AK
1346 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1347 if (!check_recording_time(ost))
1348 return;
1349
6291d7e4
AK
1350 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1351 // start_display_time is required to be 0
7636c8c6
AD
1352 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1353 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1354 sub->start_display_time = 0;
1355 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1356 subtitle_out_max_size, sub);
1357 if (subtitle_out_size < 0) {
e3245b26 1358 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1359 exit_program(1);
1360 }
1361
1362 av_init_packet(&pkt);
6291d7e4
AK
1363 pkt.data = subtitle_out;
1364 pkt.size = subtitle_out_size;
7636c8c6 1365 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 1366 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
6291d7e4
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1367 /* XXX: the pts correction is handled here. Maybe handling
1368 it in the codec would be better */
1369 if (i == 0)
1370 pkt.pts += 90 * sub->start_display_time;
1371 else
1372 pkt.pts += 90 * sub->end_display_time;
1373 }
f15f02c2 1374 write_frame(s, &pkt, ost);
6291d7e4
AK
1375 }
1376}
1377
87ef060c
AC
1378static void do_video_out(AVFormatContext *s,
1379 OutputStream *ost,
87ef060c
AC
1380 AVFrame *in_picture,
1381 int *frame_size, float quality)
1382{
74b961db
AK
1383 int ret, format_video_sync;
1384 AVPacket pkt;
1385 AVCodecContext *enc = ost->st->codec;
87ef060c
AC
1386
1387 *frame_size = 0;
1388
553735f5 1389 format_video_sync = video_sync_method;
e8c04f62
AK
1390 if (format_video_sync == VSYNC_AUTO)
1391 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1392 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
74b961db
AK
1393 if (format_video_sync != VSYNC_PASSTHROUGH &&
1394 ost->frame_number &&
1395 in_picture->pts != AV_NOPTS_VALUE &&
1396 in_picture->pts < ost->sync_opts) {
d43040e2
AK
1397 nb_frames_drop++;
1398 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1399 return;
d43040e2 1400 }
87ef060c 1401
74b961db
AK
1402 if (in_picture->pts == AV_NOPTS_VALUE)
1403 in_picture->pts = ost->sync_opts;
1404 ost->sync_opts = in_picture->pts;
1405
1406
1270e12e 1407 if (!ost->frame_number)
74b961db 1408 ost->first_pts = in_picture->pts;
1270e12e 1409
39885a4b
AK
1410 av_init_packet(&pkt);
1411 pkt.data = NULL;
1412 pkt.size = 0;
6291d7e4 1413
39885a4b
AK
1414 if (!check_recording_time(ost) ||
1415 ost->frame_number >= ost->max_frames)
1416 return;
1270e12e 1417
39885a4b 1418 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 1419 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
39885a4b
AK
1420 /* raw pictures are written as AVPicture structure to
1421 avoid any copies. We support temporarily the older
1422 method. */
1423 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1424 enc->coded_frame->top_field_first = in_picture->top_field_first;
1425 pkt.data = (uint8_t *)in_picture;
1426 pkt.size = sizeof(AVPicture);
1427 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1428 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 1429
39885a4b
AK
1430 write_frame(s, &pkt, ost);
1431 } else {
1432 int got_packet;
1433 AVFrame big_picture;
1434
1435 big_picture = *in_picture;
1436 /* better than nothing: use input picture interlaced
1437 settings */
1438 big_picture.interlaced_frame = in_picture->interlaced_frame;
1439 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1440 if (ost->top_field_first == -1)
1441 big_picture.top_field_first = in_picture->top_field_first;
1442 else
1443 big_picture.top_field_first = !!ost->top_field_first;
1444 }
6291d7e4 1445
39885a4b
AK
1446 /* handles same_quant here. This is not correct because it may
1447 not be a global option */
1448 big_picture.quality = quality;
1449 if (!enc->me_threshold)
1450 big_picture.pict_type = 0;
1451 if (ost->forced_kf_index < ost->forced_kf_count &&
1452 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1453 big_picture.pict_type = AV_PICTURE_TYPE_I;
1454 ost->forced_kf_index++;
1455 }
1456 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1457 if (ret < 0) {
1458 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1459 exit_program(1);
1460 }
6291d7e4 1461
39885a4b
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1462 if (got_packet) {
1463 if (pkt.pts != AV_NOPTS_VALUE)
1464 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1465 if (pkt.dts != AV_NOPTS_VALUE)
1466 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1467
39885a4b
AK
1468 write_frame(s, &pkt, ost);
1469 *frame_size = pkt.size;
1470 video_size += pkt.size;
324fbadf 1471
39885a4b
AK
1472 /* if two pass, output log */
1473 if (ost->logfile && enc->stats_out) {
1474 fprintf(ost->logfile, "%s", enc->stats_out);
6291d7e4
AK
1475 }
1476 }
39885a4b
AK
1477 }
1478 ost->sync_opts++;
1479 /*
1480 * For video, number of frames in == number of packets out.
1481 * But there may be reordering, so we can't throw away frames on encoder
1482 * flush, we need to limit them here, before they go into encoder.
1483 */
1484 ost->frame_number++;
6291d7e4
AK
1485}
1486
7636c8c6
AD
1487static double psnr(double d)
1488{
1489 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1490}
1491
1492static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1493 int frame_size)
1494{
1495 AVCodecContext *enc;
1496 int frame_number;
1497 double ti1, bitrate, avg_bitrate;
1498
1499 /* this is executed just the first time do_video_stats is called */
1500 if (!vstats_file) {
1501 vstats_file = fopen(vstats_filename, "w");
1502 if (!vstats_file) {
1503 perror("fopen");
1504 exit_program(1);
1505 }
1506 }
1507
1508 enc = ost->st->codec;
1509 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1510 frame_number = ost->frame_number;
7636c8c6 1511 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1512 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1513 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
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1514
1515 fprintf(vstats_file,"f_size= %6d ", frame_size);
1516 /* compute pts value */
1517 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1518 if (ti1 < 0.01)
1519 ti1 = 0.01;
1520
7636c8c6 1521 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
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1522 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1523 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1524 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
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1525 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1526 }
1527}
1528
560f7774
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1529/* check for new output on any of the filtergraphs */
1530static int poll_filters(void)
1531{
1532 AVFilterBufferRef *picref;
1533 AVFrame *filtered_frame = NULL;
ac712309 1534 int i, frame_size;
560f7774
AK
1535
1536 for (i = 0; i < nb_output_streams; i++) {
1537 OutputStream *ost = output_streams[i];
1538 OutputFile *of = output_files[ost->file_index];
369cb092 1539 int ret = 0;
560f7774 1540
bb7431f4 1541 if (!ost->filter)
560f7774
AK
1542 continue;
1543
1544 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1545 return AVERROR(ENOMEM);
1546 } else
1547 avcodec_get_frame_defaults(ost->filtered_frame);
1548 filtered_frame = ost->filtered_frame;
1549
bb7431f4 1550 while (ret >= 0 && !ost->is_past_recording_time) {
369cb092
AK
1551 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1552 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1553 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1554 ost->st->codec->frame_size);
1555 else
1556 ret = av_buffersink_read(ost->filter->filter, &picref);
1557
8a645bfc 1558 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
369cb092 1559 break;
8a645bfc
AK
1560 else if (ret < 0)
1561 return ret;
369cb092 1562
ac712309 1563 avfilter_copy_buf_props(filtered_frame, picref);
53ddd43f 1564 if (picref->pts != AV_NOPTS_VALUE) {
369cb092
AK
1565 filtered_frame->pts = av_rescale_q(picref->pts,
1566 ost->filter->filter->inputs[0]->time_base,
1567 ost->st->codec->time_base) -
1568 av_rescale_q(of->start_time,
1569 AV_TIME_BASE_Q,
1570 ost->st->codec->time_base);
560f7774 1571
53ddd43f
AK
1572 if (of->start_time && filtered_frame->pts < 0) {
1573 avfilter_unref_buffer(picref);
1574 continue;
1575 }
01e98b1b 1576 }
560f7774
AK
1577
1578 switch (ost->filter->filter->inputs[0]->type) {
1579 case AVMEDIA_TYPE_VIDEO:
1580 if (!ost->frame_aspect_ratio)
1581 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1582
1583 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1584 same_quant ? ost->last_quality :
1585 ost->st->codec->global_quality);
1586 if (vstats_filename && frame_size)
1587 do_video_stats(of->ctx, ost, frame_size);
1588 break;
369cb092
AK
1589 case AVMEDIA_TYPE_AUDIO:
1590 do_audio_out(of->ctx, ost, filtered_frame);
1591 break;
560f7774 1592 default:
369cb092 1593 // TODO support subtitle filters
560f7774
AK
1594 av_assert0(0);
1595 }
1596
1597 avfilter_unref_buffer(picref);
1598 }
1599 }
1600 return 0;
1601}
1602
ea9367e9 1603static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1604{
1605 char buf[1024];
1606 OutputStream *ost;
1607 AVFormatContext *oc;
1608 int64_t total_size;
1609 AVCodecContext *enc;
1610 int frame_number, vid, i;
1611 double bitrate, ti1, pts;
1612 static int64_t last_time = -1;
1613 static int qp_histogram[52];
1614
3460dd8a
AK
1615 if (!print_stats && !is_last_report)
1616 return;
1617
6291d7e4
AK
1618 if (!is_last_report) {
1619 int64_t cur_time;
1620 /* display the report every 0.5 seconds */
1621 cur_time = av_gettime();
1622 if (last_time == -1) {
1623 last_time = cur_time;
1624 return;
1625 }
1626 if ((cur_time - last_time) < 500000)
1627 return;
1628 last_time = cur_time;
1629 }
1630
1631
2e215267 1632 oc = output_files[0]->ctx;
6291d7e4
AK
1633
1634 total_size = avio_size(oc->pb);
7636c8c6
AD
1635 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1636 total_size = avio_tell(oc->pb);
6291d7e4
AK
1637
1638 buf[0] = '\0';
1639 ti1 = 1e10;
1640 vid = 0;
ea9367e9 1641 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1642 float q = -1;
2e215267 1643 ost = output_streams[i];
6291d7e4 1644 enc = ost->st->codec;
3d813e4c 1645 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1646 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1647 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1648 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1649 }
1650 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1651 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1652
1653 frame_number = ost->frame_number;
1654 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1655 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1656 if (is_last_report)
6291d7e4 1657 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1658 if (qp_hist) {
6291d7e4
AK
1659 int j;
1660 int qp = lrintf(q);
7636c8c6 1661 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1662 qp_histogram[qp]++;
7636c8c6
AD
1663 for (j = 0; j < 32; j++)
1664 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1665 }
7636c8c6 1666 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1667 int j;
7636c8c6
AD
1668 double error, error_sum = 0;
1669 double scale, scale_sum = 0;
1670 char type[3] = { 'Y','U','V' };
6291d7e4 1671 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1672 for (j = 0; j < 3; j++) {
1673 if (is_last_report) {
1674 error = enc->error[j];
1675 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1676 } else {
1677 error = enc->coded_frame->error[j];
1678 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1679 }
7636c8c6
AD
1680 if (j)
1681 scale /= 4;
6291d7e4
AK
1682 error_sum += error;
1683 scale_sum += scale;
7636c8c6 1684 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1685 }
7636c8c6 1686 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1687 }
1688 vid = 1;
1689 }
1690 /* compute min output value */
1691 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1692 if ((pts < ti1) && (pts > 0))
1693 ti1 = pts;
1694 }
1695 if (ti1 < 0.01)
1696 ti1 = 0.01;
1697
e3245b26 1698 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1699
e3245b26 1700 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1701 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1702 (double)total_size / 1024, ti1, bitrate);
1703
e3245b26
AK
1704 if (nb_frames_dup || nb_frames_drop)
1705 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1706 nb_frames_dup, nb_frames_drop);
6291d7e4 1707
f5646a32 1708 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1709
e3245b26 1710 fflush(stderr);
6291d7e4 1711
e3245b26 1712 if (is_last_report) {
6291d7e4 1713 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1714 av_log(NULL, AV_LOG_INFO, "\n");
1715 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1716 video_size / 1024.0,
1717 audio_size / 1024.0,
1718 extra_size / 1024.0,
1719 100.0 * (total_size - raw) / raw
6291d7e4
AK
1720 );
1721 }
1722}
1723
ea9367e9 1724static void flush_encoders(void)
4a4ce2e7
AK
1725{
1726 int i, ret;
1727
ea9367e9 1728 for (i = 0; i < nb_output_streams; i++) {
2e215267 1729 OutputStream *ost = output_streams[i];
6f1c66d5 1730 AVCodecContext *enc = ost->st->codec;
2e215267 1731 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 1732 int stop_encoding = 0;
6f1c66d5 1733
b62b5cb6 1734 if (!ost->encoding_needed)
6f1c66d5
AK
1735 continue;
1736
7636c8c6 1737 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1738 continue;
36ef5369 1739 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1740 continue;
1741
7636c8c6 1742 for (;;) {
369cb092
AK
1743 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1744 const char *desc;
1745 int64_t *size;
6f1c66d5
AK
1746
1747 switch (ost->st->codec->codec_type) {
1748 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1749 encode = avcodec_encode_audio2;
1750 desc = "Audio";
1751 size = &audio_size;
6f1c66d5
AK
1752 break;
1753 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1754 encode = avcodec_encode_video2;
1755 desc = "Video";
1756 size = &video_size;
1757 break;
1758 default:
1759 stop_encoding = 1;
1760 }
1761
1762 if (encode) {
1763 AVPacket pkt;
1764 int got_packet;
1765 av_init_packet(&pkt);
1766 pkt.data = NULL;
1767 pkt.size = 0;
1768
1769 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1770 if (ret < 0) {
369cb092 1771 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
6f1c66d5
AK
1772 exit_program(1);
1773 }
369cb092 1774 *size += ret;
6f1c66d5
AK
1775 if (ost->logfile && enc->stats_out) {
1776 fprintf(ost->logfile, "%s", enc->stats_out);
1777 }
8e37038a 1778 if (!got_packet) {
ee458cb1
JR
1779 stop_encoding = 1;
1780 break;
1781 }
8e37038a
AK
1782 if (pkt.pts != AV_NOPTS_VALUE)
1783 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1784 if (pkt.dts != AV_NOPTS_VALUE)
1785 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1786 write_frame(os, &pkt, ost);
4a4ce2e7 1787 }
369cb092 1788
ee458cb1 1789 if (stop_encoding)
6f1c66d5 1790 break;
4a4ce2e7
AK
1791 }
1792 }
1793}
1794
7204ec1a
AK
1795/*
1796 * Check whether a packet from ist should be written into ost at this time
1797 */
1798static int check_output_constraints(InputStream *ist, OutputStream *ost)
1799{
2e215267
AK
1800 OutputFile *of = output_files[ost->file_index];
1801 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1802
1803 if (ost->source_index != ist_index)
1804 return 0;
1805
23576b3f 1806 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1807 return 0;
1808
7204ec1a
AK
1809 return 1;
1810}
1811
1812static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1813{
2e215267 1814 OutputFile *of = output_files[ost->file_index];
7204ec1a
AK
1815 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1816 AVPacket opkt;
1817
1818 av_init_packet(&opkt);
1819
1820 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1821 !ost->copy_initial_nonkeyframes)
1822 return;
1823
1270e12e 1824 if (of->recording_time != INT64_MAX &&
23576b3f 1825 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1826 ost->is_past_recording_time = 1;
1827 return;
1828 }
1829
7204ec1a
AK
1830 /* force the input stream PTS */
1831 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1832 audio_size += pkt->size;
1833 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1834 video_size += pkt->size;
1835 ost->sync_opts++;
1836 }
1837
7204ec1a
AK
1838 if (pkt->pts != AV_NOPTS_VALUE)
1839 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1840 else
1841 opkt.pts = AV_NOPTS_VALUE;
1842
1843 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1844 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1845 else
1846 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1847 opkt.dts -= ost_tb_start_time;
1848
1849 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1850 opkt.flags = pkt->flags;
1851
7636c8c6 1852 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
36ef5369
AK
1853 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1854 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1855 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1856 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
7204ec1a
AK
1857 ) {
1858 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1859 opkt.destruct = av_destruct_packet;
1860 } else {
1861 opkt.data = pkt->data;
1862 opkt.size = pkt->size;
1863 }
1864
f15f02c2 1865 write_frame(of->ctx, &opkt, ost);
7204ec1a 1866 ost->st->codec->frame_number++;
7204ec1a
AK
1867 av_free_packet(&opkt);
1868}
1869
2a651b71
AK
1870static void rate_emu_sleep(InputStream *ist)
1871{
2e215267 1872 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1873 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1874 int64_t now = av_gettime() - ist->start;
1875 if (pts > now)
896bb0d7 1876 av_usleep(pts - now);
2a651b71
AK
1877 }
1878}
1879
369cb092
AK
1880static int guess_input_channel_layout(InputStream *ist)
1881{
1882 AVCodecContext *dec = ist->st->codec;
1883
1884 if (!dec->channel_layout) {
1885 char layout_name[256];
1886
1887 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1888 if (!dec->channel_layout)
1889 return 0;
1890 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1891 dec->channels, dec->channel_layout);
1892 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1893 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1894 }
1895 return 1;
1896}
1897
0629f612 1898static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1899{
d1241ff3
JR
1900 AVFrame *decoded_frame;
1901 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1902 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 1903 int i, ret, resample_changed;
ded28ba3 1904
9179f27c 1905 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1906 return AVERROR(ENOMEM);
9179f27c
JR
1907 else
1908 avcodec_get_frame_defaults(ist->decoded_frame);
1909 decoded_frame = ist->decoded_frame;
ded28ba3 1910
d1241ff3
JR
1911 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1912 if (ret < 0) {
ded28ba3 1913 return ret;
d1241ff3 1914 }
ded28ba3 1915
ded28ba3
AK
1916 if (!*got_output) {
1917 /* no audio frame */
369cb092
AK
1918 if (!pkt->size)
1919 for (i = 0; i < ist->nb_filters; i++)
1920 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 1921 return ret;
ded28ba3
AK
1922 }
1923
d1241ff3
JR
1924 /* if the decoder provides a pts, use it instead of the last packet pts.
1925 the decoder could be delaying output by a packet or more. */
1926 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1927 ist->next_dts = decoded_frame->pts;
369cb092
AK
1928 else if (pkt->pts != AV_NOPTS_VALUE) {
1929 decoded_frame->pts = pkt->pts;
1930 pkt->pts = AV_NOPTS_VALUE;
1931 }
ded28ba3
AK
1932
1933 // preprocess audio (volume)
1934 if (audio_volume != 256) {
d1241ff3
JR
1935 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1936 void *samples = decoded_frame->data[0];
1937 switch (avctx->sample_fmt) {
ded28ba3
AK
1938 case AV_SAMPLE_FMT_U8:
1939 {
1940 uint8_t *volp = samples;
1941 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1942 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1943 *volp++ = av_clip_uint8(v);
1944 }
1945 break;
1946 }
1947 case AV_SAMPLE_FMT_S16:
1948 {
1949 int16_t *volp = samples;
1950 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1951 int v = ((*volp) * audio_volume + 128) >> 8;
1952 *volp++ = av_clip_int16(v);
1953 }
1954 break;
1955 }
1956 case AV_SAMPLE_FMT_S32:
1957 {
1958 int32_t *volp = samples;
1959 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1960 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1961 *volp++ = av_clipl_int32(v);
1962 }
1963 break;
1964 }
1965 case AV_SAMPLE_FMT_FLT:
1966 {
1967 float *volp = samples;
1968 float scale = audio_volume / 256.f;
1969 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1970 *volp++ *= scale;
1971 }
1972 break;
1973 }
1974 case AV_SAMPLE_FMT_DBL:
1975 {
1976 double *volp = samples;
1977 double scale = audio_volume / 256.;
1978 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1979 *volp++ *= scale;
1980 }
1981 break;
1982 }
1983 default:
1984 av_log(NULL, AV_LOG_FATAL,
1985 "Audio volume adjustment on sample format %s is not supported.\n",
1986 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1987 exit_program(1);
1988 }
1989 }
1990
1991 rate_emu_sleep(ist);
1992
369cb092
AK
1993 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1994 ist->resample_channels != avctx->channels ||
1995 ist->resample_channel_layout != decoded_frame->channel_layout ||
1996 ist->resample_sample_rate != decoded_frame->sample_rate;
1997 if (resample_changed) {
1998 char layout1[64], layout2[64];
ded28ba3 1999
369cb092
AK
2000 if (!guess_input_channel_layout(ist)) {
2001 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2002 "layout for Input Stream #%d.%d\n", ist->file_index,
2003 ist->st->index);
2004 exit_program(1);
2005 }
2006 decoded_frame->channel_layout = avctx->channel_layout;
2007
2008 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2009 ist->resample_channel_layout);
2010 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2011 decoded_frame->channel_layout);
2012
2013 av_log(NULL, AV_LOG_INFO,
2014 "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",
2015 ist->file_index, ist->st->index,
2016 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2017 ist->resample_channels, layout1,
2018 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2019 avctx->channels, layout2);
2020
2021 ist->resample_sample_fmt = decoded_frame->format;
2022 ist->resample_sample_rate = decoded_frame->sample_rate;
2023 ist->resample_channel_layout = decoded_frame->channel_layout;
2024 ist->resample_channels = avctx->channels;
2025
2026 for (i = 0; i < nb_filtergraphs; i++)
2027 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2028 configure_filtergraph(filtergraphs[i]) < 0) {
2029 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2030 exit_program(1);
2031 }
ded28ba3 2032 }
110d2af2 2033
715129cd
MS
2034 if (decoded_frame->pts != AV_NOPTS_VALUE)
2035 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
2036 ist->st->time_base,
2037 (AVRational){1, ist->st->codec->sample_rate});
369cb092
AK
2038 for (i = 0; i < ist->nb_filters; i++)
2039 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2040
af8ad892 2041 return ret;
ded28ba3
AK
2042}
2043
0629f612 2044static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 2045{
560f7774 2046 AVFrame *decoded_frame;
45d4b66f 2047 void *buffer_to_free = NULL;
e77c8662 2048 int i, ret = 0, resample_changed;
45d4b66f 2049 float quality;
45d4b66f 2050
9179f27c 2051 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 2052 return AVERROR(ENOMEM);
9179f27c
JR
2053 else
2054 avcodec_get_frame_defaults(ist->decoded_frame);
2055 decoded_frame = ist->decoded_frame;
45d4b66f
AK
2056
2057 ret = avcodec_decode_video2(ist->st->codec,
2058 decoded_frame, got_output, pkt);
2059 if (ret < 0)
9179f27c 2060 return ret;
45d4b66f
AK
2061
2062 quality = same_quant ? decoded_frame->quality : 0;
2063 if (!*got_output) {
2064 /* no picture yet */
89605e4a
AK
2065 if (!pkt->size)
2066 for (i = 0; i < ist->nb_filters; i++)
2067 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 2068 return ret;
45d4b66f 2069 }
b34856a1
AK
2070 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2071 decoded_frame->pkt_dts);
45d4b66f
AK
2072 pkt->size = 0;
2073 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2074
2075 rate_emu_sleep(ist);
2076
695ec04e
AK
2077 if (ist->st->sample_aspect_ratio.num)
2078 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2079
e77c8662
AK
2080 resample_changed = ist->resample_width != decoded_frame->width ||
2081 ist->resample_height != decoded_frame->height ||
2082 ist->resample_pix_fmt != decoded_frame->format;
2083 if (resample_changed) {
2084 av_log(NULL, AV_LOG_INFO,
2085 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2086 ist->file_index, ist->st->index,
2087 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2088 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2089
2090 ist->resample_width = decoded_frame->width;
2091 ist->resample_height = decoded_frame->height;
2092 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 2093
3b266da3
AK
2094 for (i = 0; i < nb_filtergraphs; i++)
2095 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2096 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076
AK
2097 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2098 exit_program(1);
3b266da3
AK
2099 }
2100 }
ac646076 2101
3b266da3 2102 for (i = 0; i < ist->nb_filters; i++) {
560f7774
AK
2103 // XXX what an ugly hack
2104 if (ist->filters[i]->graph->nb_outputs == 1)
2105 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2106
04a14d4d
AK
2107 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2108 FrameBuffer *buf = decoded_frame->opaque;
2109 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2110 decoded_frame->data, decoded_frame->linesize,
2111 AV_PERM_READ | AV_PERM_PRESERVE,
2112 ist->st->codec->width, ist->st->codec->height,
2113 ist->st->codec->pix_fmt);
2114
2115 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
2116 fb->buf->priv = buf;
2117 fb->buf->free = filter_release_buffer;
2118
2119 buf->refcount++;
560f7774 2120 av_buffersrc_buffer(ist->filters[i]->filter, fb);
04a14d4d 2121 } else
720c6b78 2122 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
45d4b66f
AK
2123 }
2124
45d4b66f 2125 av_free(buffer_to_free);
45d4b66f
AK
2126 return ret;
2127}
2128
9595234c
AK
2129static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2130{
2131 AVSubtitle subtitle;
2132 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2133 &subtitle, got_output, pkt);
2134 if (ret < 0)
2135 return ret;
2136 if (!*got_output)
af8ad892 2137 return ret;
9595234c
AK
2138
2139 rate_emu_sleep(ist);
2140
2141 for (i = 0; i < nb_output_streams; i++) {
2e215267 2142 OutputStream *ost = output_streams[i];
9595234c
AK
2143
2144 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2145 continue;
2146
2e215267 2147 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
2148 }
2149
2150 avsubtitle_free(&subtitle);
af8ad892 2151 return ret;
9595234c
AK
2152}
2153
6291d7e4 2154/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 2155static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 2156{
ffa0674e 2157 int i;
6291d7e4 2158 int got_output;
6291d7e4 2159 AVPacket avpkt;
6291d7e4 2160
3101bb66 2161 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2162 ist->next_dts = ist->last_dts;
6291d7e4
AK
2163
2164 if (pkt == NULL) {
2165 /* EOF handling */
2166 av_init_packet(&avpkt);
2167 avpkt.data = NULL;
2168 avpkt.size = 0;
2169 goto handle_eof;
2170 } else {
2171 avpkt = *pkt;
2172 }
2173
7636c8c6 2174 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2175 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 2176
7636c8c6 2177 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2178 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2179 int ret = 0;
6291d7e4 2180 handle_eof:
6291d7e4 2181
23576b3f 2182 ist->last_dts = ist->next_dts;
8b0268a8
AK
2183
2184 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2185 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2186 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2187 ist->showed_multi_packet_warning = 1;
2188 }
6291d7e4 2189
7636c8c6 2190 switch (ist->st->codec->codec_type) {
82963f8f 2191 case AVMEDIA_TYPE_AUDIO:
0629f612 2192 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
2193 break;
2194 case AVMEDIA_TYPE_VIDEO:
0629f612 2195 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
2196 if (avpkt.duration)
2197 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 2198 else if (ist->st->avg_frame_rate.num)
82494835 2199 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 2200 AV_TIME_BASE_Q);
b34856a1
AK
2201 else if (ist->st->codec->time_base.num != 0) {
2202 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2203 ist->st->codec->ticks_per_frame;
2204 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2205 }
82963f8f
AK
2206 break;
2207 case AVMEDIA_TYPE_SUBTITLE:
2208 ret = transcode_subtitles(ist, &avpkt, &got_output);
2209 break;
78162b4e
AK
2210 default:
2211 return -1;
2212 }
6291d7e4 2213
d3c1d37a
AK
2214 if (ret < 0)
2215 return ret;
aa38cff2
JG
2216 // touch data and size only if not EOF
2217 if (pkt) {
2218 avpkt.data += ret;
2219 avpkt.size -= ret;
2220 }
82963f8f 2221 if (!got_output) {
af8ad892 2222 continue;
82963f8f 2223 }
6291d7e4 2224 }
6291d7e4 2225
7204ec1a 2226 /* handle stream copy */
2a651b71
AK
2227 if (!ist->decoding_needed) {
2228 rate_emu_sleep(ist);
23576b3f 2229 ist->last_dts = ist->next_dts;
2a651b71
AK
2230 switch (ist->st->codec->codec_type) {
2231 case AVMEDIA_TYPE_AUDIO:
3101bb66 2232 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2233 ist->st->codec->sample_rate;
2234 break;
2235 case AVMEDIA_TYPE_VIDEO:
2236 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2237 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2238 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2239 ist->st->codec->time_base.num * ticks) /
2240 ist->st->codec->time_base.den;
2241 }
2242 break;
2243 }
2244 }
ea9367e9 2245 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 2246 OutputStream *ost = output_streams[i];
7204ec1a
AK
2247
2248 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2249 continue;
2250
2251 do_streamcopy(ist, ost, pkt);
2252 }
2253
6291d7e4
AK
2254 return 0;
2255}
2256
ea9367e9 2257static void print_sdp(void)
6291d7e4
AK
2258{
2259 char sdp[2048];
af70aa45 2260 int i;
ea9367e9 2261 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2262
2263 if (!avc)
2264 exit_program(1);
ea9367e9 2265 for (i = 0; i < nb_output_files; i++)
2e215267 2266 avc[i] = output_files[i]->ctx;
6291d7e4 2267
ea9367e9 2268 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2269 printf("SDP:\n%s\n", sdp);
2270 fflush(stdout);
af70aa45 2271 av_freep(&avc);
6291d7e4
AK
2272}
2273
ea9367e9 2274static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2275{
2276 int i;
2e215267 2277 InputStream *ist = input_streams[ist_index];
630902a1
AK
2278 if (ist->decoding_needed) {
2279 AVCodec *codec = ist->dec;
630902a1 2280 if (!codec) {
9a414d89 2281 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2282 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2283 return AVERROR(EINVAL);
2284 }
2285
2286 /* update requested sample format for the decoder based on the
2287 corresponding encoder sample format */
2288 for (i = 0; i < nb_output_streams; i++) {
2e215267 2289 OutputStream *ost = output_streams[i];
630902a1
AK
2290 if (ost->source_index == ist_index) {
2291 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2292 break;
2293 }
2294 }
2295
64dca32c
AK
2296 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2297 ist->st->codec->get_buffer = codec_get_buffer;
2298 ist->st->codec->release_buffer = codec_release_buffer;
3ffa2335 2299 ist->st->codec->opaque = &ist->buffer_pool;
64dca32c
AK
2300 }
2301
2473a45c
JG
2302 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2303 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2304 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2305 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2306 ist->file_index, ist->st->index);
2307 return AVERROR(EINVAL);
2308 }
2309 assert_codec_experimental(ist->st->codec, 0);
2310 assert_avoptions(ist->opts);
2311 }
2312
23576b3f 2313 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 2314 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2315 init_pts_correction(&ist->pts_ctx);
2316 ist->is_start = 1;
2317
2318 return 0;
2319}
2320
3b266da3
AK
2321static InputStream *get_input_stream(OutputStream *ost)
2322{
2323 if (ost->source_index >= 0)
2324 return input_streams[ost->source_index];
2325
2326 if (ost->filter) {
2327 FilterGraph *fg = ost->filter->graph;
2328 int i;
2329
2330 for (i = 0; i < fg->nb_inputs; i++)
2331 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2332 return fg->inputs[i]->ist;
2333 }
2334
2335 return NULL;
2336}
2337
19ad5673
AK
2338static void parse_forced_key_frames(char *kf, OutputStream *ost,
2339 AVCodecContext *avctx)
2340{
2341 char *p;
2342 int n = 1, i;
2343 int64_t t;
2344
2345 for (p = kf; *p; p++)
2346 if (*p == ',')
2347 n++;
2348 ost->forced_kf_count = n;
2349 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2350 if (!ost->forced_kf_pts) {
2351 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2352 exit_program(1);
2353 }
4c679750
RD
2354
2355 p = kf;
19ad5673 2356 for (i = 0; i < n; i++) {
4c679750
RD
2357 char *next = strchr(p, ',');
2358
2359 if (next)
2360 *next++ = 0;
2361
19ad5673
AK
2362 t = parse_time_or_die("force_key_frames", p, 1);
2363 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
2364
2365 p = next;
19ad5673
AK
2366 }
2367}
2368
ea9367e9 2369static int transcode_init(void)
6291d7e4 2370{
2c474ddb 2371 int ret = 0, i, j, k;
1bb77e51 2372 AVFormatContext *oc;
6291d7e4 2373 AVCodecContext *codec, *icodec;
4288e031 2374 OutputStream *ost;
6291d7e4
AK
2375 InputStream *ist;
2376 char error[1024];
2377 int want_sdp = 1;
b0c9e8e0 2378
f4805328
AK
2379 /* init framerate emulation */
2380 for (i = 0; i < nb_input_files; i++) {
2e215267 2381 InputFile *ifile = input_files[i];
f4805328
AK
2382 if (ifile->rate_emu)
2383 for (j = 0; j < ifile->nb_streams; j++)
2e215267 2384 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 2385 }
6291d7e4
AK
2386
2387 /* output stream init */
03f30c83 2388 for (i = 0; i < nb_output_files; i++) {
2e215267 2389 oc = output_files[i]->ctx;
1bb77e51
AK
2390 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2391 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2392 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2393 return AVERROR(EINVAL);
6291d7e4 2394 }
6291d7e4
AK
2395 }
2396
3b266da3
AK
2397 /* init complex filtergraphs */
2398 for (i = 0; i < nb_filtergraphs; i++)
2399 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2400 return ret;
2401
6291d7e4 2402 /* for each output stream, we compute the right encoding parameters */
4288e031 2403 for (i = 0; i < nb_output_streams; i++) {
2e215267
AK
2404 ost = output_streams[i];
2405 oc = output_files[ost->file_index]->ctx;
3b266da3 2406 ist = get_input_stream(ost);
6291d7e4 2407
4dbc6cee
AK
2408 if (ost->attachment_filename)
2409 continue;
2410
03f30c83 2411 codec = ost->st->codec;
6291d7e4 2412
3b266da3
AK
2413 if (ist) {
2414 icodec = ist->st->codec;
2415
2416 ost->st->disposition = ist->st->disposition;
2417 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2418 codec->chroma_sample_location = icodec->chroma_sample_location;
2419 }
6291d7e4 2420
3d813e4c 2421 if (ost->stream_copy) {
8c4022ac
AK
2422 uint64_t extra_size;
2423
2424 av_assert0(ist && !ost->filter);
2425
2426 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 2427
e6d2b737 2428 if (extra_size > INT_MAX) {
eaf2d37a 2429 return AVERROR(EINVAL);
e6d2b737 2430 }
6291d7e4
AK
2431
2432 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2433 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2434 codec->codec_type = icodec->codec_type;
2435
03f30c83
AK
2436 if (!codec->codec_tag) {
2437 if (!oc->oformat->codec_tag ||
2438 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2439 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2440 codec->codec_tag = icodec->codec_tag;
2441 }
2442
03f30c83 2443 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2444 codec->rc_max_rate = icodec->rc_max_rate;
2445 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2446 codec->field_order = icodec->field_order;
03f30c83 2447 codec->extradata = av_mallocz(extra_size);
e6d2b737 2448 if (!codec->extradata) {
eaf2d37a 2449 return AVERROR(ENOMEM);
e6d2b737 2450 }
6291d7e4 2451 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2452 codec->extradata_size = icodec->extradata_size;
7bb3e625 2453 if (!copy_tb) {
03f30c83 2454 codec->time_base = icodec->time_base;
6291d7e4
AK
2455 codec->time_base.num *= icodec->ticks_per_frame;
2456 av_reduce(&codec->time_base.num, &codec->time_base.den,
2457 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2458 } else
6291d7e4 2459 codec->time_base = ist->st->time_base;
03f30c83 2460
7636c8c6 2461 switch (codec->codec_type) {
6291d7e4 2462 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2463 if (audio_volume != 256) {
e3245b26 2464 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2465 exit_program(1);
2466 }
03f30c83
AK
2467 codec->channel_layout = icodec->channel_layout;
2468 codec->sample_rate = icodec->sample_rate;
2469 codec->channels = icodec->channels;
2470 codec->frame_size = icodec->frame_size;
6291d7e4 2471 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2472 codec->block_align = icodec->block_align;
6291d7e4
AK
2473 break;
2474 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2475 codec->pix_fmt = icodec->pix_fmt;
2476 codec->width = icodec->width;
2477 codec->height = icodec->height;
2478 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2479 if (!codec->sample_aspect_ratio.num) {
03f30c83 2480 codec->sample_aspect_ratio =
6291d7e4
AK
2481 ost->st->sample_aspect_ratio =
2482 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2483 ist->st->codec->sample_aspect_ratio.num ?
2484 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2485 }
2486 break;
2487 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2488 codec->width = icodec->width;
6291d7e4
AK
2489 codec->height = icodec->height;
2490 break;
2491 case AVMEDIA_TYPE_DATA:
3ccd1580 2492 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2493 break;
2494 default:
2495 abort();
2496 }
2497 } else {
2994913d
AK
2498 if (!ost->enc) {
2499 /* should only happen when a default codec is not present. */
2500 snprintf(error, sizeof(error), "Automatic encoder selection "
2501 "failed for output stream #%d:%d. Default encoder for "
2502 "format %s is probably disabled. Please choose an "
2503 "encoder manually.\n", ost->file_index, ost->index,
2504 oc->oformat->name);
2505 ret = AVERROR(EINVAL);
2506 goto dump_format;
2507 }
03f30c83 2508
3b266da3
AK
2509 if (ist)
2510 ist->decoding_needed = 1;
11fdb7e1 2511 ost->encoding_needed = 1;
03f30c83 2512
74b961db
AK
2513 /*
2514 * We want CFR output if and only if one of those is true:
2515 * 1) user specified output framerate with -r
2516 * 2) user specified -vsync cfr
2517 * 3) output format is CFR and the user didn't force vsync to
2518 * something else than CFR
2519 *
2520 * in such a case, set ost->frame_rate
2521 */
2522 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2523 !ost->frame_rate.num && ist &&
2524 (video_sync_method == VSYNC_CFR ||
2525 (video_sync_method == VSYNC_AUTO &&
2526 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
aba232cf 2527 ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
74b961db
AK
2528 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2529 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2530 ost->frame_rate = ost->enc->supported_framerates[idx];
2531 }
2532 }
2533
369cb092
AK
2534 if (!ost->filter &&
2535 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2536 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
2537 FilterGraph *fg;
2538 fg = init_simple_filtergraph(ist, ost);
8daf21d5 2539 if (configure_filtergraph(fg)) {
3b266da3
AK
2540 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2541 exit(1);
2542 }
369cb092 2543 }
3b266da3 2544
369cb092
AK
2545 switch (codec->codec_type) {
2546 case AVMEDIA_TYPE_AUDIO:
2547 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2548 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2549 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2550 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2551 codec->time_base = (AVRational){ 1, codec->sample_rate };
2552 break;
2553 case AVMEDIA_TYPE_VIDEO:
74b961db 2554 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 2555
3b266da3
AK
2556 codec->width = ost->filter->filter->inputs[0]->w;
2557 codec->height = ost->filter->filter->inputs[0]->h;
2558 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2559 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2560 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2561 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2562 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 2563
9dced854
AK
2564 if (codec->width != icodec->width ||
2565 codec->height != icodec->height ||
2566 codec->pix_fmt != icodec->pix_fmt) {
b7327887
AK
2567 codec->bits_per_raw_sample = 0;
2568 }
2569
19ad5673
AK
2570 if (ost->forced_keyframes)
2571 parse_forced_key_frames(ost->forced_keyframes, ost,
2572 ost->st->codec);
6291d7e4
AK
2573 break;
2574 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2575 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2576 break;
2577 default:
2578 abort();
2579 break;
2580 }
2581 /* two pass mode */
515901fa 2582 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2583 char logfilename[1024];
2584 FILE *f;
2585
2586 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2587 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2588 i);
6e8be949
AK
2589 if (!strcmp(ost->enc->name, "libx264")) {
2590 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2591 } else {
64334ddb
AK
2592 if (codec->flags & CODEC_FLAG_PASS1) {
2593 f = fopen(logfilename, "wb");
2594 if (!f) {
2595 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2596 logfilename, strerror(errno));
2597 exit_program(1);
2598 }
2599 ost->logfile = f;
2600 } else {
2601 char *logbuffer;
2602 size_t logbuffer_size;
2603 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2604 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2605 logfilename);
2606 exit_program(1);
2607 }
2608 codec->stats_in = logbuffer;
6291d7e4 2609 }
6e8be949 2610 }
6291d7e4
AK
2611 }
2612 }
6291d7e4
AK
2613 }
2614
2615 /* open each encoder */
4288e031 2616 for (i = 0; i < nb_output_streams; i++) {
2e215267 2617 ost = output_streams[i];
6291d7e4 2618 if (ost->encoding_needed) {
03f30c83 2619 AVCodec *codec = ost->enc;
3b266da3 2620 AVCodecContext *dec = NULL;
3b266da3
AK
2621
2622 if ((ist = get_input_stream(ost)))
2623 dec = ist->st->codec;
2624 if (dec && dec->subtitle_header) {
6291d7e4
AK
2625 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2626 if (!ost->st->codec->subtitle_header) {
2627 ret = AVERROR(ENOMEM);
2628 goto dump_format;
2629 }
2630 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2631 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2632 }
2473a45c
JG
2633 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2634 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2635 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2636 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
2637 ost->file_index, ost->index);
2638 ret = AVERROR(EINVAL);
2639 goto dump_format;
2640 }
2641 assert_codec_experimental(ost->st->codec, 1);
2642 assert_avoptions(ost->opts);
2643 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2644 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2645 "It takes bits/s as argument, not kbits/s\n");
2646 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2647
2648 if (ost->st->codec->me_threshold)
2e215267 2649 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2650 }
2651 }
2652
630902a1
AK
2653 /* init input streams */
2654 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2655 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2656 goto dump_format;
6291d7e4 2657
2c474ddb
AK
2658 /* discard unused programs */
2659 for (i = 0; i < nb_input_files; i++) {
2e215267 2660 InputFile *ifile = input_files[i];
2c474ddb
AK
2661 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2662 AVProgram *p = ifile->ctx->programs[j];
2663 int discard = AVDISCARD_ALL;
2664
2665 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2666 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2667 discard = AVDISCARD_DEFAULT;
2668 break;
2669 }
2670 p->discard = discard;
2671 }
2672 }
2673
6291d7e4 2674 /* open files and write file headers */
af70aa45 2675 for (i = 0; i < nb_output_files; i++) {
2e215267 2676 oc = output_files[i]->ctx;
1bb77e51 2677 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
2678 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2679 char errbuf[128];
2680 const char *errbuf_ptr = errbuf;
2681 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2682 errbuf_ptr = strerror(AVUNERROR(ret));
2683 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
6291d7e4
AK
2684 ret = AVERROR(EINVAL);
2685 goto dump_format;
2686 }
2e215267 2687 assert_avoptions(output_files[i]->opts);
1bb77e51 2688 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2689 want_sdp = 0;
2690 }
2691 }
2692
2693 dump_format:
2694 /* dump the file output parameters - cannot be done before in case
2695 of stream copy */
03f30c83 2696 for (i = 0; i < nb_output_files; i++) {
2e215267 2697 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2698 }
2699
2700 /* dump the stream mapping */
e3245b26 2701 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2702 for (i = 0; i < nb_input_streams; i++) {
2703 ist = input_streams[i];
2704
2705 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
2706 if (ist->filters[j]->graph->graph_desc) {
2707 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2708 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2709 ist->filters[j]->name);
3b266da3
AK
2710 if (nb_filtergraphs > 1)
2711 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2712 av_log(NULL, AV_LOG_INFO, "\n");
2713 }
2714 }
2715 }
2716
e3245b26 2717 for (i = 0; i < nb_output_streams; i++) {
2e215267 2718 ost = output_streams[i];
4dbc6cee
AK
2719
2720 if (ost->attachment_filename) {
2721 /* an attached file */
2722 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2723 ost->attachment_filename, ost->file_index, ost->index);
2724 continue;
2725 }
3b266da3
AK
2726
2727 if (ost->filter && ost->filter->graph->graph_desc) {
2728 /* output from a complex graph */
cf6c38c6 2729 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2730 if (nb_filtergraphs > 1)
2731 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2732
2733 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2734 ost->index, ost->enc ? ost->enc->name : "?");
2735 continue;
2736 }
2737
9a414d89 2738 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2739 input_streams[ost->source_index]->file_index,
2740 input_streams[ost->source_index]->st->index,
e3245b26
AK
2741 ost->file_index,
2742 ost->index);
2e215267 2743 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2744 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2745 ost->sync_ist->file_index,
2746 ost->sync_ist->st->index);
3d813e4c 2747 if (ost->stream_copy)
e3245b26
AK
2748 av_log(NULL, AV_LOG_INFO, " (copy)");
2749 else
2e215267
AK
2750 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2751 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2752 ost->enc ? ost->enc->name : "?");
2753 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2754 }
2755
2756 if (ret) {
e3245b26 2757 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2758 return ret;
6291d7e4
AK
2759 }
2760
2761 if (want_sdp) {
ea9367e9 2762 print_sdp();
6291d7e4
AK
2763 }
2764
eaf2d37a
AC
2765 return 0;
2766}
2767
2f51ec2b
AK
2768/**
2769 * @return 1 if there are still streams where more output is wanted,
2770 * 0 otherwise
2771 */
2772static int need_output(void)
2773{
2774 int i;
2775
2776 for (i = 0; i < nb_output_streams; i++) {
2777 OutputStream *ost = output_streams[i];
2778 OutputFile *of = output_files[ost->file_index];
2779 AVFormatContext *os = output_files[ost->file_index]->ctx;
2780
2781 if (ost->is_past_recording_time ||
2782 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2783 continue;
e58b75f7 2784 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2785 int j;
2786 for (j = 0; j < of->ctx->nb_streams; j++)
2787 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2788 continue;
2789 }
2790
2791 return 1;
2792 }
2793
2794 return 0;
2795}
2796
a508e7a1
AK
2797static int select_input_file(uint8_t *no_packet)
2798{
2799 int64_t ipts_min = INT64_MAX;
2800 int i, file_index = -1;
2801
2802 for (i = 0; i < nb_input_streams; i++) {
2803 InputStream *ist = input_streams[i];
2804 int64_t ipts = ist->last_dts;
2805
2806 if (ist->discard || no_packet[ist->file_index])
2807 continue;
2808 if (!input_files[ist->file_index]->eof_reached) {
2809 if (ipts < ipts_min) {
2810 ipts_min = ipts;
2811 file_index = ist->file_index;
2812 }
2813 }
2814 }
2815
2816 return file_index;
2817}
2818
47b812e9 2819#if HAVE_PTHREADS
5db5169e
AK
2820static void *input_thread(void *arg)
2821{
2822 InputFile *f = arg;
2823 int ret = 0;
2824
2825 while (!transcoding_finished && ret >= 0) {
2826 AVPacket pkt;
2827 ret = av_read_frame(f->ctx, &pkt);
2828
2829 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2830 av_usleep(10000);
5db5169e
AK
2831 ret = 0;
2832 continue;
2833 } else if (ret < 0)
2834 break;
2835
2836 pthread_mutex_lock(&f->fifo_lock);
2837 while (!av_fifo_space(f->fifo))
2838 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2839
2840 av_dup_packet(&pkt);
2841 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2842
2843 pthread_mutex_unlock(&f->fifo_lock);
2844 }
2845
2846 f->finished = 1;
2847 return NULL;
2848}
2849
2850static void free_input_threads(void)
2851{
2852 int i;
2853
2854 if (nb_input_files == 1)
2855 return;
2856
2857 transcoding_finished = 1;
2858
2859 for (i = 0; i < nb_input_files; i++) {
2860 InputFile *f = input_files[i];
2861 AVPacket pkt;
2862
9034b0ed 2863 if (!f->fifo || f->joined)
5db5169e
AK
2864 continue;
2865
2866 pthread_mutex_lock(&f->fifo_lock);
2867 while (av_fifo_size(f->fifo)) {
2868 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2869 av_free_packet(&pkt);
2870 }
2871 pthread_cond_signal(&f->fifo_cond);
2872 pthread_mutex_unlock(&f->fifo_lock);
2873
2874 pthread_join(f->thread, NULL);
2875 f->joined = 1;
2876
2877 while (av_fifo_size(f->fifo)) {
2878 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2879 av_free_packet(&pkt);
2880 }
2881 av_fifo_free(f->fifo);
2882 }
2883}
2884
2885static int init_input_threads(void)
2886{
2887 int i, ret;
2888
2889 if (nb_input_files == 1)
2890 return 0;
2891
2892 for (i = 0; i < nb_input_files; i++) {
2893 InputFile *f = input_files[i];
2894
2895 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2896 return AVERROR(ENOMEM);
2897
2898 pthread_mutex_init(&f->fifo_lock, NULL);
2899 pthread_cond_init (&f->fifo_cond, NULL);
2900
2901 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2902 return AVERROR(ret);
2903 }
2904 return 0;
2905}
2906
2907static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2908{
2909 int ret = 0;
2910
2911 pthread_mutex_lock(&f->fifo_lock);
2912
2913 if (av_fifo_size(f->fifo)) {
2914 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2915 pthread_cond_signal(&f->fifo_cond);
2916 } else {
2917 if (f->finished)
2918 ret = AVERROR_EOF;
2919 else
2920 ret = AVERROR(EAGAIN);
2921 }
2922
2923 pthread_mutex_unlock(&f->fifo_lock);
2924
2925 return ret;
2926}
2927#endif
2928
2929static int get_input_packet(InputFile *f, AVPacket *pkt)
2930{
47b812e9 2931#if HAVE_PTHREADS
5db5169e
AK
2932 if (nb_input_files > 1)
2933 return get_input_packet_mt(f, pkt);
2934#endif
2935 return av_read_frame(f->ctx, pkt);
2936}
2937
eaf2d37a
AC
2938/*
2939 * The following code is the main loop of the file converter
2940 */
ea9367e9 2941static int transcode(void)
eaf2d37a
AC
2942{
2943 int ret, i;
2944 AVFormatContext *is, *os;
2945 OutputStream *ost;
2946 InputStream *ist;
2947 uint8_t *no_packet;
7636c8c6 2948 int no_packet_count = 0;
eaf2d37a
AC
2949 int64_t timer_start;
2950
2951 if (!(no_packet = av_mallocz(nb_input_files)))
2952 exit_program(1);
2953
ea9367e9 2954 ret = transcode_init();
eaf2d37a
AC
2955 if (ret < 0)
2956 goto fail;
2957
e3245b26 2958 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2959 term_init();
2960
2961 timer_start = av_gettime();
2962
47b812e9 2963#if HAVE_PTHREADS
5db5169e
AK
2964 if ((ret = init_input_threads()) < 0)
2965 goto fail;
2966#endif
2967
7636c8c6 2968 for (; received_sigterm == 0;) {
2f51ec2b 2969 int file_index, ist_index;
6291d7e4 2970 AVPacket pkt;
6291d7e4 2971
3b266da3 2972 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2973 if (!need_output()) {
2974 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2975 break;
2f51ec2b 2976 }
3b266da3 2977
a508e7a1
AK
2978 /* select the stream that we must read now */
2979 file_index = select_input_file(no_packet);
6291d7e4
AK
2980 /* if none, if is finished */
2981 if (file_index < 0) {
7636c8c6
AD
2982 if (no_packet_count) {
2983 no_packet_count = 0;
b0c9e8e0 2984 memset(no_packet, 0, nb_input_files);
896bb0d7 2985 av_usleep(10000);
6291d7e4
AK
2986 continue;
2987 }
5db5169e 2988 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
6291d7e4
AK
2989 break;
2990 }
2991
2e215267 2992 is = input_files[file_index]->ctx;
5db5169e
AK
2993 ret = get_input_packet(input_files[file_index], &pkt);
2994
7636c8c6
AD
2995 if (ret == AVERROR(EAGAIN)) {
2996 no_packet[file_index] = 1;
6291d7e4
AK
2997 no_packet_count++;
2998 continue;
2999 }
3000 if (ret < 0) {
5417efbb
AK
3001 if (ret != AVERROR_EOF) {
3002 print_error(is->filename, ret);
3003 if (exit_on_error)
3004 exit_program(1);
3005 }
2e215267 3006 input_files[file_index]->eof_reached = 1;
9e8aae44
AK
3007
3008 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
3009 ist = input_streams[input_files[file_index]->ist_index + i];
3010 if (ist->decoding_needed)
3011 output_packet(ist, NULL);
3012 }
3013
6291d7e4
AK
3014 if (opt_shortest)
3015 break;
3016 else
3017 continue;
3018 }
3019
7636c8c6 3020 no_packet_count = 0;
b0c9e8e0 3021 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
3022
3023 if (do_pkt_dump) {
3024 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3025 is->streams[pkt.stream_index]);
3026 }
3027 /* the following test is needed in case new streams appear
3028 dynamically in stream : we ignore them */
2e215267 3029 if (pkt.stream_index >= input_files[file_index]->nb_streams)
6291d7e4 3030 goto discard_packet;
2e215267
AK
3031 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
3032 ist = input_streams[ist_index];
6291d7e4
AK
3033 if (ist->discard)
3034 goto discard_packet;
3035
3036 if (pkt.dts != AV_NOPTS_VALUE)
2e215267 3037 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 3038 if (pkt.pts != AV_NOPTS_VALUE)
2e215267 3039 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 3040
7636c8c6 3041 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 3042 pkt.pts *= ist->ts_scale;
7636c8c6 3043 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 3044 pkt.dts *= ist->ts_scale;
6291d7e4 3045
7636c8c6 3046 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 3047 // ist->next_dts,
7636c8c6
AD
3048 // pkt.dts, input_files[ist->file_index].ts_offset,
3049 // ist->st->codec->codec_type);
3101bb66 3050 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 3051 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 3052 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 3053 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 3054 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2e215267 3055 input_files[ist->file_index]->ts_offset -= delta;
7636c8c6
AD
3056 av_log(NULL, AV_LOG_DEBUG,
3057 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2e215267 3058 delta, input_files[ist->file_index]->ts_offset);
6291d7e4 3059 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 3060 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
3061 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3062 }
3063 }
3064
7636c8c6 3065 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
560f7774 3066 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
9a414d89 3067 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 3068 ist->file_index, ist->st->index);
6291d7e4
AK
3069 if (exit_on_error)
3070 exit_program(1);
3071 av_free_packet(&pkt);
b9630bcf 3072 continue;
6291d7e4
AK
3073 }
3074
3075 discard_packet:
3076 av_free_packet(&pkt);
3077
3078 /* dump report by using the output first video and audio streams */
ea9367e9 3079 print_report(0, timer_start);
6291d7e4 3080 }
47b812e9 3081#if HAVE_PTHREADS
5db5169e
AK
3082 free_input_threads();
3083#endif
6291d7e4
AK
3084
3085 /* at the end of stream, we must flush the decoder buffers */
3086 for (i = 0; i < nb_input_streams; i++) {
2e215267 3087 ist = input_streams[i];
9e8aae44 3088 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 3089 output_packet(ist, NULL);
6291d7e4
AK
3090 }
3091 }
560f7774 3092 poll_filters();
ea9367e9 3093 flush_encoders();
6291d7e4
AK
3094
3095 term_exit();
3096
3097 /* write the trailer if needed and close file */
7636c8c6 3098 for (i = 0; i < nb_output_files; i++) {
2e215267 3099 os = output_files[i]->ctx;
6291d7e4
AK
3100 av_write_trailer(os);
3101 }
3102
3103 /* dump report by using the first video and audio streams */
ea9367e9 3104 print_report(1, timer_start);
6291d7e4
AK
3105
3106 /* close each encoder */
4288e031 3107 for (i = 0; i < nb_output_streams; i++) {
2e215267 3108 ost = output_streams[i];
6291d7e4
AK
3109 if (ost->encoding_needed) {
3110 av_freep(&ost->st->codec->stats_in);
3111 avcodec_close(ost->st->codec);
3112 }
6291d7e4
AK
3113 }
3114
3115 /* close each decoder */
3116 for (i = 0; i < nb_input_streams; i++) {
2e215267 3117 ist = input_streams[i];
6291d7e4
AK
3118 if (ist->decoding_needed) {
3119 avcodec_close(ist->st->codec);
3120 }
3121 }
3122
3123 /* finished ! */
3124 ret = 0;
3125
3126 fail:
b0c9e8e0 3127 av_freep(&no_packet);
47b812e9 3128#if HAVE_PTHREADS
5db5169e
AK
3129 free_input_threads();
3130#endif
6291d7e4 3131
4288e031
AK
3132 if (output_streams) {
3133 for (i = 0; i < nb_output_streams; i++) {
2e215267 3134 ost = output_streams[i];
6291d7e4 3135 if (ost) {
3d813e4c 3136 if (ost->stream_copy)
6291d7e4
AK
3137 av_freep(&ost->st->codec->extradata);
3138 if (ost->logfile) {
3139 fclose(ost->logfile);
3140 ost->logfile = NULL;
3141 }
6291d7e4 3142 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 3143 av_free(ost->forced_kf_pts);
6291d7e4 3144 av_dict_free(&ost->opts);
6291d7e4
AK
3145 }
3146 }
6291d7e4
AK
3147 }
3148 return ret;
3149}
3150
ca46fde7 3151static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
3152{
3153 int x = 0, y = 0;
3154 double ar = 0;
3155 const char *p;
3156 char *end;
3157
3158 p = strchr(arg, ':');
3159 if (p) {
3160 x = strtol(arg, &end, 10);
3161 if (end == p)
7636c8c6 3162 y = strtol(end + 1, &end, 10);
6291d7e4
AK
3163 if (x > 0 && y > 0)
3164 ar = (double)x / (double)y;
3165 } else
3166 ar = strtod(arg, NULL);
3167
3168 if (!ar) {
e3245b26 3169 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 3170 exit_program(1);
6291d7e4 3171 }
ca46fde7 3172 return ar;
6291d7e4
AK
3173}
3174
35e6f8c1 3175static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3176{
35e6f8c1 3177 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
3178}
3179
35e6f8c1 3180static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3181{
35e6f8c1 3182 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
3183}
3184
35e6f8c1 3185static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3186{
35e6f8c1 3187 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
3188}
3189
35e6f8c1 3190static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3191{
35e6f8c1 3192 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
3193}
3194
575ec4e1 3195static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3196{
8d2e4a7e
AK
3197 StreamMap *m = NULL;
3198 int i, negative = 0, file_idx;
3199 int sync_file_idx = -1, sync_stream_idx;
3200 char *p, *sync;
3201 char *map;
6291d7e4 3202
8d2e4a7e
AK
3203 if (*arg == '-') {
3204 negative = 1;
3205 arg++;
3206 }
3207 map = av_strdup(arg);
6291d7e4 3208
8d2e4a7e
AK
3209 /* parse sync stream first, just pick first matching stream */
3210 if (sync = strchr(map, ',')) {
3211 *sync = 0;
3212 sync_file_idx = strtol(sync + 1, &sync, 0);
3213 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 3214 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
3215 exit_program(1);
3216 }
3217 if (*sync)
3218 sync++;
2e215267
AK
3219 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3220 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3221 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
8d2e4a7e
AK
3222 sync_stream_idx = i;
3223 break;
3224 }
2e215267 3225 if (i == input_files[sync_file_idx]->nb_streams) {
f24facd3 3226 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
3227 "match any streams.\n", arg);
3228 exit_program(1);
3229 }
3230 }
6291d7e4 3231
8d2e4a7e 3232
3b266da3
AK
3233 if (map[0] == '[') {
3234 /* this mapping refers to lavfi output */
3235 const char *c = map + 1;
3236 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3237 &o->nb_stream_maps, o->nb_stream_maps + 1);
3238 m = &o->stream_maps[o->nb_stream_maps - 1];
3239 m->linklabel = av_get_token(&c, "]");
3240 if (!m->linklabel) {
3241 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3242 exit_program(1);
3243 }
3244 } else {
3e901cbc
AK
3245 file_idx = strtol(map, &p, 0);
3246 if (file_idx >= nb_input_files || file_idx < 0) {
3247 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3248 exit_program(1);
8d2e4a7e 3249 }
3e901cbc
AK
3250 if (negative)
3251 /* disable some already defined maps */
3252 for (i = 0; i < o->nb_stream_maps; i++) {
3253 m = &o->stream_maps[i];
3254 if (file_idx == m->file_index &&
3255 check_stream_specifier(input_files[m->file_index]->ctx,
3256 input_files[m->file_index]->ctx->streams[m->stream_index],
3257 *p == ':' ? p + 1 : p) > 0)
3258 m->disabled = 1;
3259 }
3260 else
3261 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3262 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3263 *p == ':' ? p + 1 : p) <= 0)
3264 continue;
3265 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3266 &o->nb_stream_maps, o->nb_stream_maps + 1);
3267 m = &o->stream_maps[o->nb_stream_maps - 1];
3268
3269 m->file_index = file_idx;
3270 m->stream_index = i;
3271
3272 if (sync_file_idx >= 0) {
3273 m->sync_file_index = sync_file_idx;
3274 m->sync_stream_index = sync_stream_idx;
3275 } else {
3276 m->sync_file_index = file_idx;
3277 m->sync_stream_index = i;
3278 }
8d2e4a7e 3279 }
3b266da3 3280 }
8d2e4a7e
AK
3281
3282 if (!m) {
f24facd3 3283 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
3284 exit_program(1);
3285 }
3286
3287 av_freep(&map);
6291d7e4
AK
3288 return 0;
3289}
3290
4dbc6cee
AK
3291static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3292{
3293 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3294 &o->nb_attachments, o->nb_attachments + 1);
3295 o->attachments[o->nb_attachments - 1] = arg;
3296 return 0;
3297}
3298
a7b5e841
AK
3299/**
3300 * Parse a metadata specifier in arg.
3301 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3302 * @param index for type c/p, chapter/program index is written here
3303 * @param stream_spec for type s, the stream specifier is written here
3304 */
3305static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 3306{
039267f1 3307 if (*arg) {
a2a38d96 3308 *type = *arg;
6291d7e4
AK
3309 switch (*arg) {
3310 case 'g':
3311 break;
3312 case 's':
a7b5e841
AK
3313 if (*(++arg) && *arg != ':') {
3314 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3315 exit_program(1);
3316 }
3317 *stream_spec = *arg == ':' ? arg + 1 : "";
3318 break;
6291d7e4
AK
3319 case 'c':
3320 case 'p':
e6e6060c
AK
3321 if (*(++arg) == ':')
3322 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3323 break;
3324 default:
e3245b26 3325 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3326 exit_program(1);
3327 }
3328 } else
3329 *type = 'g';
3330}
3331
a7b5e841 3332static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3333{
a7b5e841
AK
3334 AVDictionary **meta_in = NULL;
3335 AVDictionary **meta_out;
3336 int i, ret = 0;
3337 char type_in, type_out;
3338 const char *istream_spec = NULL, *ostream_spec = NULL;
3339 int idx_in = 0, idx_out = 0;
6291d7e4 3340
a7b5e841
AK
3341 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3342 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3343
a7b5e841 3344 if (type_in == 'g' || type_out == 'g')
847529f8 3345 o->metadata_global_manual = 1;
a7b5e841 3346 if (type_in == 's' || type_out == 's')
847529f8 3347 o->metadata_streams_manual = 1;
a7b5e841 3348 if (type_in == 'c' || type_out == 'c')
847529f8 3349 o->metadata_chapters_manual = 1;
6291d7e4 3350
a7b5e841
AK
3351#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3352 if ((index) < 0 || (index) >= (nb_elems)) {\
3353 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3354 (desc), (index));\
3355 exit_program(1);\
3356 }
3357
3358#define SET_DICT(type, meta, context, index)\
3359 switch (type) {\
3360 case 'g':\
3361 meta = &context->metadata;\
3362 break;\
3363 case 'c':\
3364 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3365 meta = &context->chapters[index]->metadata;\
3366 break;\
3367 case 'p':\
3368 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3369 meta = &context->programs[index]->metadata;\
3370 break;\
c29c1a1b 3371 default: av_assert0(0);\
a7b5e841
AK
3372 }\
3373
3374 SET_DICT(type_in, meta_in, ic, idx_in);
3375 SET_DICT(type_out, meta_out, oc, idx_out);
3376
3377 /* for input streams choose first matching stream */
3378 if (type_in == 's') {
3379 for (i = 0; i < ic->nb_streams; i++) {
3380 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3381 meta_in = &ic->streams[i]->metadata;
3382 break;
3383 } else if (ret < 0)
3384 exit_program(1);
3385 }
3386 if (!meta_in) {
3387 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3388 exit_program(1);
3389 }
3390 }
3391
3392 if (type_out == 's') {
3393 for (i = 0; i < oc->nb_streams; i++) {
3394 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3395 meta_out = &oc->streams[i]->metadata;
3396 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3397 } else if (ret < 0)
3398 exit_program(1);
3399 }
3400 } else
3401 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3402
6291d7e4
AK
3403 return 0;
3404}
3405
1b648c7c 3406static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3407{
3408 const char *codec_string = encoder ? "encoder" : "decoder";
3409 AVCodec *codec;
3410
169f0647
AK
3411 codec = encoder ?
3412 avcodec_find_encoder_by_name(name) :
3413 avcodec_find_decoder_by_name(name);
7636c8c6 3414 if (!codec) {
f24facd3 3415 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3416 exit_program(1);
3417 }
7636c8c6 3418 if (codec->type != type) {
f24facd3 3419 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3420 exit_program(1);
3421 }
1b648c7c 3422 return codec;
169f0647
AK
3423}
3424
1b648c7c 3425static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3426{
169f0647 3427 char *codec_name = NULL;
169f0647 3428
35e6f8c1 3429 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3430 if (codec_name) {
3431 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3432 st->codec->codec_id = codec->id;
3433 return codec;
3434 } else
3435 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3436}
6291d7e4 3437
88867844
AK
3438/**
3439 * Add all the streams from the given input file to the global
3440 * list of input streams.
3441 */
35e6f8c1 3442static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3443{
c88d5319 3444 int i;
88867844
AK
3445
3446 for (i = 0; i < ic->nb_streams; i++) {
3447 AVStream *st = ic->streams[i];
3448 AVCodecContext *dec = st->codec;
2e215267 3449 InputStream *ist = av_mallocz(sizeof(*ist));
c9cc7629 3450 char *framerate = NULL;
2e215267
AK
3451
3452 if (!ist)
3453 exit_program(1);
88867844 3454
88867844 3455 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2e215267
AK
3456 input_streams[nb_input_streams - 1] = ist;
3457
88867844
AK
3458 ist->st = st;
3459 ist->file_index = nb_input_files;
3460 ist->discard = 1;
13f6917c 3461 st->discard = AVDISCARD_ALL;
d3ed1c95 3462 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
88867844 3463
059fb8c8
AK
3464 ist->ts_scale = 1.0;
3465 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3466
1b648c7c 3467 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3468
3469 switch (dec->codec_type) {
88867844 3470 case AVMEDIA_TYPE_VIDEO:
e77c8662
AK
3471 ist->resample_height = dec->height;
3472 ist->resample_width = dec->width;
3473 ist->resample_pix_fmt = dec->pix_fmt;
3474
c9cc7629
AK
3475 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3476 if (framerate && av_parse_video_rate(&ist->framerate,
3477 framerate) < 0) {
3478 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3479 framerate);
3480 exit_program(1);
3481 }
3482
88867844 3483 break;
13f6917c 3484 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
3485 guess_input_channel_layout(ist);
3486
3487 ist->resample_sample_fmt = dec->sample_fmt;
3488 ist->resample_sample_rate = dec->sample_rate;
3489 ist->resample_channels = dec->channels;
3490 ist->resample_channel_layout = dec->channel_layout;
3491
3492 break;
88867844 3493 case AVMEDIA_TYPE_DATA:
88867844 3494 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3495 case AVMEDIA_TYPE_ATTACHMENT:
3496 case AVMEDIA_TYPE_UNKNOWN:
3497 break;
3498 default:
3499 abort();
3500 }
3501 }
3502}
3503
a2c0b830
AK
3504static void assert_file_overwrite(const char *filename)
3505{
3506 if (!file_overwrite &&
3507 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3508 av_strstart(filename, "file:", NULL))) {
3509 if (avio_check(filename, 0) == 0) {
3510 if (!using_stdin) {
3511 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3512 fflush(stderr);