rtpenc: Fix memory leaks in the muxer open function
[libav.git] / avconv.c
CommitLineData
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1/*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "config.h"
23#include <ctype.h>
24#include <string.h>
25#include <math.h>
26#include <stdlib.h>
27#include <errno.h>
28#include <signal.h>
29#include <limits.h>
30#include <unistd.h>
31#include "libavformat/avformat.h"
32#include "libavdevice/avdevice.h"
33#include "libswscale/swscale.h"
bcb82fe1 34#include "libavresample/avresample.h"
6291d7e4 35#include "libavutil/opt.h"
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36#include "libavutil/audioconvert.h"
37#include "libavutil/parseutils.h"
38#include "libavutil/samplefmt.h"
39#include "libavutil/colorspace.h"
40#include "libavutil/fifo.h"
41#include "libavutil/intreadwrite.h"
42#include "libavutil/dict.h"
43#include "libavutil/mathematics.h"
44#include "libavutil/pixdesc.h"
45#include "libavutil/avstring.h"
46#include "libavutil/libm.h"
64dca32c 47#include "libavutil/imgutils.h"
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48#include "libavformat/os_support.h"
49
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50# include "libavfilter/avfilter.h"
51# include "libavfilter/avfiltergraph.h"
04a14d4d 52# include "libavfilter/buffersrc.h"
ac712309 53# include "libavfilter/buffersink.h"
6291d7e4 54# include "libavfilter/vsrc_buffer.h"
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55
56#if HAVE_SYS_RESOURCE_H
57#include <sys/types.h>
58#include <sys/time.h>
59#include <sys/resource.h>
60#elif HAVE_GETPROCESSTIMES
61#include <windows.h>
62#endif
63#if HAVE_GETPROCESSMEMORYINFO
64#include <windows.h>
65#include <psapi.h>
66#endif
67
68#if HAVE_SYS_SELECT_H
69#include <sys/select.h>
70#endif
71
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72#if HAVE_PTHREADS
73#include <pthread.h>
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74#endif
75
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76#include <time.h>
77
78#include "cmdutils.h"
79
80#include "libavutil/avassert.h"
81
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82#define VSYNC_AUTO -1
83#define VSYNC_PASSTHROUGH 0
84#define VSYNC_CFR 1
85#define VSYNC_VFR 2
86
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87const char program_name[] = "avconv";
88const int program_birth_year = 2000;
89
90/* select an input stream for an output stream */
91typedef struct StreamMap {
8d2e4a7e 92 int disabled; /** 1 is this mapping is disabled by a negative map */
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93 int file_index;
94 int stream_index;
95 int sync_file_index;
96 int sync_stream_index;
3b266da3 97 char *linklabel; /** name of an output link, for mapping lavfi outputs */
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98} StreamMap;
99
100/**
101 * select an input file for an output file
102 */
103typedef struct MetadataMap {
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104 int file; ///< file index
105 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
106 int index; ///< stream/chapter/program number
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107} MetadataMap;
108
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109static const OptionDef options[];
110
6291d7e4 111static int video_discard = 0;
f4ad238c 112static int same_quant = 0;
6291d7e4 113static int do_deinterlace = 0;
6291d7e4 114static int intra_dc_precision = 8;
6291d7e4 115static int qp_hist = 0;
6291d7e4 116
6291d7e4 117static int file_overwrite = 0;
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118static int do_benchmark = 0;
119static int do_hex_dump = 0;
120static int do_pkt_dump = 0;
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121static int do_pass = 0;
122static char *pass_logfilename_prefix = NULL;
e8c04f62 123static int video_sync_method = VSYNC_AUTO;
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124static int audio_sync_method = 0;
125static float audio_drift_threshold = 0.1;
126static int copy_ts = 0;
7bb3e625 127static int copy_tb = 1;
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128static int opt_shortest = 0;
129static char *vstats_filename;
130static FILE *vstats_file;
6291d7e4 131
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132static int audio_volume = 256;
133
134static int exit_on_error = 0;
135static int using_stdin = 0;
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136static int64_t video_size = 0;
137static int64_t audio_size = 0;
138static int64_t extra_size = 0;
139static int nb_frames_dup = 0;
140static int nb_frames_drop = 0;
141static int input_sync;
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142
143static float dts_delta_threshold = 10;
144
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145static int print_stats = 1;
146
47b812e9 147#if HAVE_PTHREADS
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148/* signal to input threads that they should exit; set by the main thread */
149static int transcoding_finished;
150#endif
151
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152#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
153
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154typedef struct InputFilter {
155 AVFilterContext *filter;
156 struct InputStream *ist;
157 struct FilterGraph *graph;
cf6c38c6 158 uint8_t *name;
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159} InputFilter;
160
161typedef struct OutputFilter {
162 AVFilterContext *filter;
163 struct OutputStream *ost;
164 struct FilterGraph *graph;
cf6c38c6 165 uint8_t *name;
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166
167 /* temporary storage until stream maps are processed */
168 AVFilterInOut *out_tmp;
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169} OutputFilter;
170
171typedef struct FilterGraph {
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172 int index;
173 const char *graph_desc;
174
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175 AVFilterGraph *graph;
176
177 InputFilter **inputs;
178 int nb_inputs;
179 OutputFilter **outputs;
180 int nb_outputs;
181} FilterGraph;
182
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183typedef struct InputStream {
184 int file_index;
185 AVStream *st;
186 int discard; /* true if stream data should be discarded */
187 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
188 AVCodec *dec;
9179f27c 189 AVFrame *decoded_frame;
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190
191 int64_t start; /* time when read started */
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192 /* predicted dts of the next packet read for this stream or (when there are
193 * several frames in a packet) of the next frame in current packet */
194 int64_t next_dts;
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195 /* dts of the last packet read for this stream */
196 int64_t last_dts;
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197 PtsCorrectionContext pts_ctx;
198 double ts_scale;
199 int is_start; /* is 1 at the start and after a discontinuity */
200 int showed_multi_packet_warning;
201 AVDictionary *opts;
c9cc7629 202 AVRational framerate; /* framerate forced with -r */
64dca32c 203
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204 int resample_height;
205 int resample_width;
206 int resample_pix_fmt;
207
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208 int resample_sample_fmt;
209 int resample_sample_rate;
210 int resample_channels;
211 uint64_t resample_channel_layout;
212
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213 /* a pool of free buffers for decoded data */
214 FrameBuffer *buffer_pool;
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215
216 /* decoded data from this stream goes into all those filters
0ad26cdf 217 * currently video and audio only */
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218 InputFilter **filters;
219 int nb_filters;
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220} InputStream;
221
222typedef struct InputFile {
223 AVFormatContext *ctx;
224 int eof_reached; /* true if eof reached */
225 int ist_index; /* index of first stream in ist_table */
226 int buffer_size; /* current total buffer size */
227 int64_t ts_offset;
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228 int nb_streams; /* number of stream that avconv is aware of; may be different
229 from ctx.nb_streams if new streams appear during av_read_frame() */
f4805328 230 int rate_emu;
5db5169e 231
47b812e9 232#if HAVE_PTHREADS
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233 pthread_t thread; /* thread reading from this file */
234 int finished; /* the thread has exited */
235 int joined; /* the thread has been joined */
236 pthread_mutex_t fifo_lock; /* lock for access to fifo */
237 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
238 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
239#endif
6494c001 240} InputFile;
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241
242typedef struct OutputStream {
243 int file_index; /* file index */
244 int index; /* stream index in the output file */
245 int source_index; /* InputStream index */
246 AVStream *st; /* stream in the output file */
247 int encoding_needed; /* true if encoding needed for this stream */
248 int frame_number;
249 /* input pts and corresponding output pts
250 for A/V sync */
7636c8c6 251 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
6291d7e4 252 struct InputStream *sync_ist; /* input stream to sync against */
7636c8c6 253 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
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254 /* pts of the first frame encoded for this stream, used for limiting
255 * recording time */
256 int64_t first_pts;
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257 AVBitStreamFilterContext *bitstream_filters;
258 AVCodec *enc;
96139b5e 259 int64_t max_frames;
836ce905 260 AVFrame *filtered_frame;
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261
262 /* video only */
6291d7e4 263 AVRational frame_rate;
bef737a7 264 int force_fps;
828e0bcb 265 int top_field_first;
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266
267 float frame_aspect_ratio;
560f7774 268 float last_quality;
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269
270 /* forced key frames */
271 int64_t *forced_kf_pts;
272 int forced_kf_count;
273 int forced_kf_index;
274
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275 FILE *logfile;
276
560f7774 277 OutputFilter *filter;
6291d7e4 278 char *avfilter;
6291d7e4 279
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280 int64_t sws_flags;
281 AVDictionary *opts;
282 int is_past_recording_time;
283 int stream_copy;
284 const char *attachment_filename;
285 int copy_initial_nonkeyframes;
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286
287 enum PixelFormat pix_fmts[2];
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288} OutputStream;
289
6291d7e4 290
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291typedef struct OutputFile {
292 AVFormatContext *ctx;
293 AVDictionary *opts;
4288e031 294 int ost_index; /* index of the first stream in output_streams */
ef44a607 295 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 296 int64_t start_time; /* start time in microseconds */
f21f294e 297 uint64_t limit_filesize;
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298} OutputFile;
299
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300static InputStream **input_streams = NULL;
301static int nb_input_streams = 0;
302static InputFile **input_files = NULL;
303static int nb_input_files = 0;
6291d7e4 304
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305static OutputStream **output_streams = NULL;
306static int nb_output_streams = 0;
307static OutputFile **output_files = NULL;
308static int nb_output_files = 0;
af70aa45 309
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310static FilterGraph **filtergraphs;
311int nb_filtergraphs;
312
575ec4e1 313typedef struct OptionsContext {
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314 /* input/output options */
315 int64_t start_time;
7041bb3b 316 const char *format;
6b779ccc 317
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318 SpecifierOpt *codec_names;
319 int nb_codec_names;
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320 SpecifierOpt *audio_channels;
321 int nb_audio_channels;
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322 SpecifierOpt *audio_sample_rate;
323 int nb_audio_sample_rate;
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324 SpecifierOpt *frame_rates;
325 int nb_frame_rates;
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326 SpecifierOpt *frame_sizes;
327 int nb_frame_sizes;
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328 SpecifierOpt *frame_pix_fmts;
329 int nb_frame_pix_fmts;
35e6f8c1 330
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331 /* input options */
332 int64_t input_ts_offset;
f4805328 333 int rate_emu;
6b779ccc 334
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335 SpecifierOpt *ts_scale;
336 int nb_ts_scale;
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337 SpecifierOpt *dump_attachment;
338 int nb_dump_attachment;
33f75d72 339
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340 /* output options */
341 StreamMap *stream_maps;
342 int nb_stream_maps;
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343 /* first item specifies output metadata, second is input */
344 MetadataMap (*meta_data_maps)[2];
345 int nb_meta_data_maps;
346 int metadata_global_manual;
347 int metadata_streams_manual;
348 int metadata_chapters_manual;
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349 const char **attachments;
350 int nb_attachments;
6b779ccc 351
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352 int chapters_input_file;
353
6b779ccc 354 int64_t recording_time;
13ccba50 355 uint64_t limit_filesize;
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356 float mux_preload;
357 float mux_max_delay;
039267f1 358
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359 int video_disable;
360 int audio_disable;
361 int subtitle_disable;
362 int data_disable;
363
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364 /* indexed by output file stream index */
365 int *streamid_map;
366 int nb_streamid_map;
367
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368 SpecifierOpt *metadata;
369 int nb_metadata;
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370 SpecifierOpt *max_frames;
371 int nb_max_frames;
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372 SpecifierOpt *bitstream_filters;
373 int nb_bitstream_filters;
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374 SpecifierOpt *codec_tags;
375 int nb_codec_tags;
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376 SpecifierOpt *sample_fmts;
377 int nb_sample_fmts;
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378 SpecifierOpt *qscale;
379 int nb_qscale;
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380 SpecifierOpt *forced_key_frames;
381 int nb_forced_key_frames;
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382 SpecifierOpt *force_fps;
383 int nb_force_fps;
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384 SpecifierOpt *frame_aspect_ratios;
385 int nb_frame_aspect_ratios;
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386 SpecifierOpt *rc_overrides;
387 int nb_rc_overrides;
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388 SpecifierOpt *intra_matrices;
389 int nb_intra_matrices;
390 SpecifierOpt *inter_matrices;
391 int nb_inter_matrices;
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392 SpecifierOpt *top_field_first;
393 int nb_top_field_first;
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394 SpecifierOpt *metadata_map;
395 int nb_metadata_map;
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396 SpecifierOpt *presets;
397 int nb_presets;
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398 SpecifierOpt *copy_initial_nonkeyframes;
399 int nb_copy_initial_nonkeyframes;
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400 SpecifierOpt *filters;
401 int nb_filters;
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402} OptionsContext;
403
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404#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
405{\
406 int i, ret;\
407 for (i = 0; i < o->nb_ ## name; i++) {\
408 char *spec = o->name[i].specifier;\
409 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
410 outvar = o->name[i].u.type;\
411 else if (ret < 0)\
412 exit_program(1);\
413 }\
414}
415
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416static void reset_options(OptionsContext *o)
417{
418 const OptionDef *po = options;
3b266da3 419 int i;
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420
421 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
422 while (po->name) {
423 void *dst = (uint8_t*)o + po->u.off;
424
425 if (po->flags & OPT_SPEC) {
426 SpecifierOpt **so = dst;
427 int i, *count = (int*)(so + 1);
428 for (i = 0; i < *count; i++) {
429 av_freep(&(*so)[i].specifier);
430 if (po->flags & OPT_STRING)
431 av_freep(&(*so)[i].u.str);
432 }
433 av_freep(so);
434 *count = 0;
435 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
436 av_freep(dst);
437 po++;
438 }
439
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440 for (i = 0; i < o->nb_stream_maps; i++)
441 av_freep(&o->stream_maps[i].linklabel);
575ec4e1 442 av_freep(&o->stream_maps);
847529f8 443 av_freep(&o->meta_data_maps);
495ecfd1 444 av_freep(&o->streamid_map);
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445
446 memset(o, 0, sizeof(*o));
6b779ccc 447
dc26318c 448 o->mux_max_delay = 0.7;
6b779ccc 449 o->recording_time = INT64_MAX;
13ccba50 450 o->limit_filesize = UINT64_MAX;
c5bb372e 451 o->chapters_input_file = INT_MAX;
6b779ccc 452
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453 uninit_opts();
454 init_opts();
455}
456
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457/**
458 * Define a function for building a string containing a list of
459 * allowed formats,
460 */
461#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
462static char *choose_ ## var ## s(OutputStream *ost) \
463{ \
464 if (ost->st->codec->var != none) { \
465 get_name(ost->st->codec->var); \
466 return av_strdup(name); \
467 } else if (ost->enc->supported_list) { \
468 const type *p; \
469 AVIOContext *s = NULL; \
470 uint8_t *ret; \
471 int len; \
472 \
473 if (avio_open_dyn_buf(&s) < 0) \
474 exit_program(1); \
475 \
476 for (p = ost->enc->supported_list; *p != none; p++) { \
477 get_name(*p); \
478 avio_printf(s, "%s" separator, name); \
479 } \
480 len = avio_close_dyn_buf(s, &ret); \
481 ret[len - 1] = 0; \
482 return ret; \
483 } else \
484 return NULL; \
485}
486
487#define GET_PIX_FMT_NAME(pix_fmt)\
488 const char *name = av_get_pix_fmt_name(pix_fmt);
489
490DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
491 GET_PIX_FMT_NAME, ":")
492
493#define GET_SAMPLE_FMT_NAME(sample_fmt)\
494 const char *name = av_get_sample_fmt_name(sample_fmt)
495
496DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
497 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
498
499#define GET_SAMPLE_RATE_NAME(rate)\
500 char name[16];\
501 snprintf(name, sizeof(name), "%d", rate);
502
503DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
504 GET_SAMPLE_RATE_NAME, ",")
505
506#define GET_CH_LAYOUT_NAME(ch_layout)\
507 char name[16];\
508 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
509
510DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
511 GET_CH_LAYOUT_NAME, ",")
512
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513static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
514{
515 FilterGraph *fg = av_mallocz(sizeof(*fg));
516
517 if (!fg)
518 exit_program(1);
3b266da3 519 fg->index = nb_filtergraphs;
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520
521 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
522 fg->nb_outputs + 1);
523 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
524 exit_program(1);
525 fg->outputs[0]->ost = ost;
526 fg->outputs[0]->graph = fg;
527
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528 ost->filter = fg->outputs[0];
529
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530 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
531 fg->nb_inputs + 1);
532 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
533 exit_program(1);
534 fg->inputs[0]->ist = ist;
535 fg->inputs[0]->graph = fg;
536
537 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
538 &ist->nb_filters, ist->nb_filters + 1);
539 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
540
541 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
542 &nb_filtergraphs, nb_filtergraphs + 1);
543 filtergraphs[nb_filtergraphs - 1] = fg;
544
545 return fg;
546}
547
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548static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
549{
550 InputStream *ist;
9d0bfc50 551 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
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552 int i;
553
554 // TODO: support other filter types
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555 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
556 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
557 "currently.\n");
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558 exit_program(1);
559 }
560
561 if (in->name) {
562 AVFormatContext *s;
563 AVStream *st = NULL;
564 char *p;
565 int file_idx = strtol(in->name, &p, 0);
566
1381081c 567 if (file_idx < 0 || file_idx >= nb_input_files) {
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568 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
569 file_idx, fg->graph_desc);
570 exit_program(1);
571 }
572 s = input_files[file_idx]->ctx;
573
574 for (i = 0; i < s->nb_streams; i++) {
575 if (s->streams[i]->codec->codec_type != type)
576 continue;
577 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
578 st = s->streams[i];
579 break;
580 }
581 }
582 if (!st) {
583 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
584 "matches no streams.\n", p, fg->graph_desc);
585 exit_program(1);
586 }
587 ist = input_streams[input_files[file_idx]->ist_index + st->index];
588 } else {
589 /* find the first unused stream of corresponding type */
590 for (i = 0; i < nb_input_streams; i++) {
591 ist = input_streams[i];
592 if (ist->st->codec->codec_type == type && ist->discard)
593 break;
594 }
595 if (i == nb_input_streams) {
596 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
597 "unlabeled input pad %d on filter %s", in->pad_idx,
598 in->filter_ctx->name);
599 exit_program(1);
600 }
601 }
602 ist->discard = 0;
603 ist->decoding_needed = 1;
604 ist->st->discard = AVDISCARD_NONE;
605
606 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
607 &fg->nb_inputs, fg->nb_inputs + 1);
608 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
609 exit_program(1);
610 fg->inputs[fg->nb_inputs - 1]->ist = ist;
611 fg->inputs[fg->nb_inputs - 1]->graph = fg;
612
613 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
614 &ist->nb_filters, ist->nb_filters + 1);
615 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
616}
617
0ad26cdf 618static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
3b266da3 619{
ac712309 620 char *pix_fmts;
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621 OutputStream *ost = ofilter->ost;
622 AVCodecContext *codec = ost->st->codec;
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623 AVFilterContext *last_filter = out->filter_ctx;
624 int pad_idx = out->pad_idx;
625 int ret;
626
3b266da3 627
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628 ret = avfilter_graph_create_filter(&ofilter->filter,
629 avfilter_get_by_name("buffersink"),
630 "out", NULL, pix_fmts, fg->graph);
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631 if (ret < 0)
632 return ret;
633
634 if (codec->width || codec->height) {
635 char args[255];
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636 AVFilterContext *filter;
637
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638 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
639 codec->width,
640 codec->height,
8daf21d5 641 (unsigned)ost->sws_flags);
ac712309 642 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
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643 NULL, args, NULL, fg->graph)) < 0)
644 return ret;
ac712309 645 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
3b266da3 646 return ret;
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647
648 last_filter = filter;
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649 pad_idx = 0;
650 }
651
8daf21d5 652 if ((pix_fmts = choose_pix_fmts(ost))) {
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653 AVFilterContext *filter;
654 if ((ret = avfilter_graph_create_filter(&filter,
655 avfilter_get_by_name("format"),
656 "format", pix_fmts, NULL,
657 fg->graph)) < 0)
658 return ret;
659 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
660 return ret;
661
662 last_filter = filter;
663 pad_idx = 0;
664 av_freep(&pix_fmts);
665 }
666
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667 if (ost->frame_rate.num) {
668 AVFilterContext *fps;
669 char args[255];
670
671 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
672 ost->frame_rate.den);
673 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
674 "fps", args, NULL, fg->graph);
675 if (ret < 0)
676 return ret;
677
678 ret = avfilter_link(last_filter, pad_idx, fps, 0);
679 if (ret < 0)
680 return ret;
681 last_filter = fps;
682 pad_idx = 0;
683 }
684
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685 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
686 return ret;
687
688 return 0;
689}
690
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691static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
692{
693 OutputStream *ost = ofilter->ost;
694 AVCodecContext *codec = ost->st->codec;
695 AVFilterContext *last_filter = out->filter_ctx;
696 int pad_idx = out->pad_idx;
697 char *sample_fmts, *sample_rates, *channel_layouts;
698 int ret;
699
700 ret = avfilter_graph_create_filter(&ofilter->filter,
701 avfilter_get_by_name("abuffersink"),
702 "out", NULL, NULL, fg->graph);
703 if (ret < 0)
704 return ret;
705
706 if (codec->channels && !codec->channel_layout)
707 codec->channel_layout = av_get_default_channel_layout(codec->channels);
708
709 sample_fmts = choose_sample_fmts(ost);
710 sample_rates = choose_sample_rates(ost);
711 channel_layouts = choose_channel_layouts(ost);
712 if (sample_fmts || sample_rates || channel_layouts) {
713 AVFilterContext *format;
714 char args[256];
715 int len = 0;
716
717 if (sample_fmts)
718 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
719 sample_fmts);
720 if (sample_rates)
721 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
722 sample_rates);
723 if (channel_layouts)
724 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
725 channel_layouts);
726 args[len - 1] = 0;
727
728 av_freep(&sample_fmts);
729 av_freep(&sample_rates);
730 av_freep(&channel_layouts);
731
732 ret = avfilter_graph_create_filter(&format,
733 avfilter_get_by_name("aformat"),
734 "aformat", args, NULL, fg->graph);
735 if (ret < 0)
736 return ret;
737
738 ret = avfilter_link(last_filter, pad_idx, format, 0);
739 if (ret < 0)
740 return ret;
741
742 last_filter = format;
743 pad_idx = 0;
744 }
745
746 if (audio_sync_method > 0) {
747 AVFilterContext *async;
748 char args[256];
749 int len = 0;
750
751 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
752 "asyncts audio filter instead.\n");
753
754 if (audio_sync_method > 1)
755 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
756 "max_comp=%d:", audio_sync_method);
757 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
758 audio_drift_threshold);
759
760 ret = avfilter_graph_create_filter(&async,
761 avfilter_get_by_name("asyncts"),
762 "async", args, NULL, fg->graph);
763 if (ret < 0)
764 return ret;
765
766 ret = avfilter_link(last_filter, pad_idx, async, 0);
767 if (ret < 0)
768 return ret;
769
770 last_filter = async;
771 pad_idx = 0;
772 }
773
774 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
775 return ret;
776
777 return 0;
778}
779
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780#define DESCRIBE_FILTER_LINK(f, inout, in) \
781{ \
782 AVFilterContext *ctx = inout->filter_ctx; \
783 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
784 int nb_pads = in ? ctx->input_count : ctx->output_count; \
785 AVIOContext *pb; \
786 \
787 if (avio_open_dyn_buf(&pb) < 0) \
788 exit_program(1); \
789 \
790 avio_printf(pb, "%s", ctx->filter->name); \
791 if (nb_pads > 1) \
9d0bfc50 792 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
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793 avio_w8(pb, 0); \
794 avio_close_dyn_buf(pb, &f->name); \
795}
796
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797static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
798{
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799 av_freep(&ofilter->name);
800 DESCRIBE_FILTER_LINK(ofilter, out, 0);
801
9d0bfc50 802 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
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803 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
804 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
805 default: av_assert0(0);
806 }
807}
808
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809static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
810 AVFilterInOut *in)
811{
c9cc7629 812 AVFilterContext *first_filter = in->filter_ctx;
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813 AVFilter *filter = avfilter_get_by_name("buffer");
814 InputStream *ist = ifilter->ist;
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815 AVRational tb = ist->framerate.num ? (AVRational){ist->framerate.den,
816 ist->framerate.num} :
817 ist->st->time_base;
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818 AVRational sar;
819 char args[255];
c9cc7629 820 int pad_idx = in->pad_idx;
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821 int ret;
822
823 sar = ist->st->sample_aspect_ratio.num ?
824 ist->st->sample_aspect_ratio :
825 ist->st->codec->sample_aspect_ratio;
826 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
8daf21d5 827 ist->st->codec->height, ist->st->codec->pix_fmt,
c9cc7629 828 tb.num, tb.den, sar.num, sar.den);
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829
830 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, in->name,
831 args, NULL, fg->graph)) < 0)
832 return ret;
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833
834 if (ist->framerate.num) {
835 AVFilterContext *setpts;
836
837 if ((ret = avfilter_graph_create_filter(&setpts,
838 avfilter_get_by_name("setpts"),
839 "setpts", "N", NULL,
840 fg->graph)) < 0)
841 return ret;
842
843 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
844 return ret;
845
846 first_filter = setpts;
847 pad_idx = 0;
848 }
849
850 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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851 return ret;
852 return 0;
853}
854
855static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
856 AVFilterInOut *in)
857{
8daf21d5 858 AVFilterContext *first_filter = in->filter_ctx;
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859 AVFilter *filter = avfilter_get_by_name("abuffer");
860 InputStream *ist = ifilter->ist;
8daf21d5 861 int pad_idx = in->pad_idx;
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862 char args[255];
863 int ret;
864
865 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
866 ":channel_layout=0x%"PRIx64,
867 ist->st->time_base.num, ist->st->time_base.den,
868 ist->st->codec->sample_rate,
869 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
870 ist->st->codec->channel_layout);
871
872 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
873 in->name, args, NULL,
874 fg->graph)) < 0)
875 return ret;
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876
877 if (audio_sync_method > 0) {
878 AVFilterContext *async;
879 char args[256];
880 int len = 0;
881
882 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
883 "asyncts audio filter instead.\n");
884
885 if (audio_sync_method > 1)
886 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
887 "max_comp=%d:", audio_sync_method);
888 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
889 audio_drift_threshold);
890
891 ret = avfilter_graph_create_filter(&async,
892 avfilter_get_by_name("asyncts"),
893 "async", args, NULL, fg->graph);
894 if (ret < 0)
895 return ret;
896
897 ret = avfilter_link(async, 0, first_filter, pad_idx);
898 if (ret < 0)
899 return ret;
900
901 first_filter = async;
902 pad_idx = 0;
903 }
904 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
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905 return ret;
906
907 return 0;
908}
909
910static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
911 AVFilterInOut *in)
912{
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913 av_freep(&ifilter->name);
914 DESCRIBE_FILTER_LINK(ifilter, in, 1);
915
9d0bfc50 916 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
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917 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
918 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
919 default: av_assert0(0);
920 }
921}
922
8daf21d5 923static int configure_filtergraph(FilterGraph *fg)
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924{
925 AVFilterInOut *inputs, *outputs, *cur;
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926 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
927 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
928 fg->graph_desc;
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929
930 avfilter_graph_free(&fg->graph);
931 if (!(fg->graph = avfilter_graph_alloc()))
932 return AVERROR(ENOMEM);
933
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934 if (simple) {
935 OutputStream *ost = fg->outputs[0]->ost;
936 char args[255];
937 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
938 fg->graph->scale_sws_opts = av_strdup(args);
939 }
940
941 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
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942 return ret;
943
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944 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
945 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
946 "exactly one input and output.\n", graph_desc);
947 return AVERROR(EINVAL);
948 }
949
950 for (cur = inputs; !simple && init && cur; cur = cur->next)
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951 init_input_filter(fg, cur);
952
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953 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
954 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
3b266da3 955 return ret;
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956 avfilter_inout_free(&inputs);
957
8daf21d5 958 if (!init || simple) {
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959 /* we already know the mappings between lavfi outputs and output streams,
960 * so we can finish the setup */
961 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
962 configure_output_filter(fg, fg->outputs[i], cur);
963 avfilter_inout_free(&outputs);
964
965 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
966 return ret;
967 } else {
968 /* wait until output mappings are processed */
969 for (cur = outputs; cur;) {
970 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
971 &fg->nb_outputs, fg->nb_outputs + 1);
972 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
973 exit_program(1);
974 fg->outputs[fg->nb_outputs - 1]->graph = fg;
975 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
976 cur = cur->next;
977 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
978 }
979 }
980
981 return 0;
982}
983
984static int configure_complex_filters(void)
985{
986 int i, ret = 0;
987
988 for (i = 0; i < nb_filtergraphs; i++)
989 if (!filtergraphs[i]->graph &&
8daf21d5 990 (ret = configure_filtergraph(filtergraphs[i])) < 0)
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991 return ret;
992 return 0;
993}
994
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995static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
996{
997 int i;
998 for (i = 0; i < fg->nb_inputs; i++)
999 if (fg->inputs[i]->ist == ist)
1000 return 1;
1001 return 0;
1002}
1003
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1004static void term_exit(void)
1005{
1006 av_log(NULL, AV_LOG_QUIET, "");
1007}
1008
1009static volatile int received_sigterm = 0;
1010static volatile int received_nb_signals = 0;
1011
1012static void
1013sigterm_handler(int sig)
1014{
1015 received_sigterm = sig;
1016 received_nb_signals++;
1017 term_exit();
1018}
1019
1020static void term_init(void)
1021{
7636c8c6 1022 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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1023 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1024#ifdef SIGXCPU
1025 signal(SIGXCPU, sigterm_handler);
1026#endif
1027}
1028
2abe947a 1029static int decode_interrupt_cb(void *ctx)
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1030{
1031 return received_nb_signals > 1;
1032}
1033
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1034static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1035
dad09ff9 1036void exit_program(int ret)
6291d7e4 1037{
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1038 int i, j;
1039
1040 for (i = 0; i < nb_filtergraphs; i++) {
1041 avfilter_graph_free(&filtergraphs[i]->graph);
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1042 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1043 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 1044 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 1045 }
560f7774 1046 av_freep(&filtergraphs[i]->inputs);
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1047 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1048 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 1049 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 1050 }
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1051 av_freep(&filtergraphs[i]->outputs);
1052 av_freep(&filtergraphs[i]);
1053 }
1054 av_freep(&filtergraphs);
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1055
1056 /* close files */
7636c8c6 1057 for (i = 0; i < nb_output_files; i++) {
2e215267 1058 AVFormatContext *s = output_files[i]->ctx;
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1059 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1060 avio_close(s->pb);
1061 avformat_free_context(s);
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1062 av_dict_free(&output_files[i]->opts);
1063 av_freep(&output_files[i]);
6291d7e4 1064 }
1135a071 1065 for (i = 0; i < nb_output_streams; i++) {
2e215267 1066 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
JG
1067 while (bsfc) {
1068 AVBitStreamFilterContext *next = bsfc->next;
1069 av_bitstream_filter_close(bsfc);
1070 bsfc = next;
1071 }
2e215267 1072 output_streams[i]->bitstream_filters = NULL;
ac646076 1073
2e215267 1074 av_freep(&output_streams[i]->avfilter);
836ce905 1075 av_freep(&output_streams[i]->filtered_frame);
2e215267 1076 av_freep(&output_streams[i]);
1135a071 1077 }
7636c8c6 1078 for (i = 0; i < nb_input_files; i++) {
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1079 avformat_close_input(&input_files[i]->ctx);
1080 av_freep(&input_files[i]);
6291d7e4 1081 }
9179f27c 1082 for (i = 0; i < nb_input_streams; i++) {
2e215267 1083 av_freep(&input_streams[i]->decoded_frame);
2e215267 1084 av_dict_free(&input_streams[i]->opts);
3ffa2335 1085 free_buffer_pool(&input_streams[i]->buffer_pool);
560f7774 1086 av_freep(&input_streams[i]->filters);
2e215267 1087 av_freep(&input_streams[i]);
9179f27c 1088 }
6291d7e4 1089
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1090 if (vstats_file)
1091 fclose(vstats_file);
1092 av_free(vstats_filename);
1093
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1094 av_freep(&input_streams);
1095 av_freep(&input_files);
4288e031 1096 av_freep(&output_streams);
af70aa45 1097 av_freep(&output_files);
6291d7e4 1098
6291d7e4 1099 uninit_opts();
6291d7e4 1100
6291d7e4 1101 avfilter_uninit();
776f2bb9 1102 avformat_network_deinit();
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1103
1104 if (received_sigterm) {
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1105 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1106 (int) received_sigterm);
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1107 exit (255);
1108 }
1109
f75e3d25 1110 exit(ret);
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1111}
1112
1113static void assert_avoptions(AVDictionary *m)
1114{
1115 AVDictionaryEntry *t;
1116 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 1117 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
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1118 exit_program(1);
1119 }
1120}
1121
1122static void assert_codec_experimental(AVCodecContext *c, int encoder)
1123{
1124 const char *codec_string = encoder ? "encoder" : "decoder";
1125 AVCodec *codec;
1126 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1127 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 1128 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
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1129 "results.\nAdd '-strict experimental' if you want to use it.\n",
1130 codec_string, c->codec->name);
1131 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1132 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 1133 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
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1134 codec_string, codec->name);
1135 exit_program(1);
1136 }
1137}
1138
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1139/**
1140 * Update the requested input sample format based on the output sample format.
1141 * This is currently only used to request float output from decoders which
1142 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1143 * Ideally this will be removed in the future when decoders do not do format
1144 * conversion and only output in their native format.
1145 */
1146static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1147 AVCodecContext *enc)
1148{
1149 /* if sample formats match or a decoder sample format has already been
1150 requested, just return */
1151 if (enc->sample_fmt == dec->sample_fmt ||
1152 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1153 return;
1154
1155 /* if decoder supports more than one output format */
1156 if (dec_codec && dec_codec->sample_fmts &&
1157 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1158 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1159 const enum AVSampleFormat *p;
1160 int min_dec = -1, min_inc = -1;
1161
1162 /* find a matching sample format in the encoder */
1163 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1164 if (*p == enc->sample_fmt) {
1165 dec->request_sample_fmt = *p;
1166 return;
1167 } else if (*p > enc->sample_fmt) {
1168 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1169 } else
1170 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1171 }
1172
1173 /* if none match, provide the one that matches quality closest */
1174 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1175 enc->sample_fmt - min_dec;
1176 }
1177}
1178
f15f02c2 1179static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 1180{
f15f02c2
AK
1181 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1182 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
1183 int ret;
1184
99932847
AK
1185 /*
1186 * Audio encoders may split the packets -- #frames in != #packets out.
1187 * But there is no reordering, so we can limit the number of output packets
1188 * by simply dropping them here.
1189 * Counting encoded video frames needs to be done separately because of
1190 * reordering, see do_video_out()
1191 */
1192 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
1193 if (ost->frame_number >= ost->max_frames) {
1194 av_free_packet(pkt);
99932847 1195 return;
c9594fe0 1196 }
99932847
AK
1197 ost->frame_number++;
1198 }
1199
7636c8c6
AD
1200 while (bsfc) {
1201 AVPacket new_pkt = *pkt;
1202 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1203 &new_pkt.data, &new_pkt.size,
1204 pkt->data, pkt->size,
1205 pkt->flags & AV_PKT_FLAG_KEY);
1206 if (a > 0) {
6291d7e4 1207 av_free_packet(pkt);
7636c8c6
AD
1208 new_pkt.destruct = av_destruct_packet;
1209 } else if (a < 0) {
e3245b26
AK
1210 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1211 bsfc->filter->name, pkt->stream_index,
1212 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
1213 print_error("", a);
1214 if (exit_on_error)
1215 exit_program(1);
1216 }
7636c8c6 1217 *pkt = new_pkt;
6291d7e4 1218
7636c8c6 1219 bsfc = bsfc->next;
6291d7e4
AK
1220 }
1221
61a09968 1222 pkt->stream_index = ost->index;
7636c8c6
AD
1223 ret = av_interleaved_write_frame(s, pkt);
1224 if (ret < 0) {
6291d7e4
AK
1225 print_error("av_interleaved_write_frame()", ret);
1226 exit_program(1);
1227 }
1228}
1229
1270e12e
AK
1230static int check_recording_time(OutputStream *ost)
1231{
2e215267 1232 OutputFile *of = output_files[ost->file_index];
1270e12e
AK
1233
1234 if (of->recording_time != INT64_MAX &&
1235 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1236 AV_TIME_BASE_Q) >= 0) {
1237 ost->is_past_recording_time = 1;
1238 return 0;
1239 }
1240 return 1;
1241}
1242
369cb092
AK
1243static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1244 AVFrame *frame)
ee458cb1
JR
1245{
1246 AVCodecContext *enc = ost->st->codec;
ee458cb1 1247 AVPacket pkt;
369cb092 1248 int got_packet = 0;
ee458cb1
JR
1249
1250 av_init_packet(&pkt);
1251 pkt.data = NULL;
1252 pkt.size = 0;
1253
369cb092
AK
1254 if (!check_recording_time(ost))
1255 return;
1270e12e 1256
369cb092 1257 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 1258 frame->pts = ost->sync_opts;
369cb092 1259 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 1260
ee458cb1
JR
1261 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1262 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1263 exit_program(1);
1264 }
1265
1266 if (got_packet) {
ee458cb1
JR
1267 if (pkt.pts != AV_NOPTS_VALUE)
1268 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
1269 if (pkt.dts != AV_NOPTS_VALUE)
1270 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
1271 if (pkt.duration > 0)
1272 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1273
1274 write_frame(s, &pkt, ost);
1275
1276 audio_size += pkt.size;
1277 }
6291d7e4
AK
1278}
1279
1280static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1281{
1282 AVCodecContext *dec;
1283 AVPicture *picture2;
1284 AVPicture picture_tmp;
1285 uint8_t *buf = 0;
1286
1287 dec = ist->st->codec;
1288
1289 /* deinterlace : must be done before any resize */
1290 if (do_deinterlace) {
1291 int size;
1292
1293 /* create temporary picture */
1294 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1295 buf = av_malloc(size);
6291d7e4
AK
1296 if (!buf)
1297 return;
1298
1299 picture2 = &picture_tmp;
1300 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1301
7636c8c6 1302 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1303 dec->pix_fmt, dec->width, dec->height) < 0) {
1304 /* if error, do not deinterlace */
e3245b26 1305 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1306 av_free(buf);
1307 buf = NULL;
1308 picture2 = picture;
1309 }
1310 } else {
1311 picture2 = picture;
1312 }
1313
1314 if (picture != picture2)
1315 *picture = *picture2;
1316 *bufp = buf;
1317}
1318
6291d7e4
AK
1319static void do_subtitle_out(AVFormatContext *s,
1320 OutputStream *ost,
1321 InputStream *ist,
1322 AVSubtitle *sub,
1323 int64_t pts)
1324{
1325 static uint8_t *subtitle_out = NULL;
1326 int subtitle_out_max_size = 1024 * 1024;
1327 int subtitle_out_size, nb, i;
1328 AVCodecContext *enc;
1329 AVPacket pkt;
1330
1331 if (pts == AV_NOPTS_VALUE) {
e3245b26 1332 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1333 if (exit_on_error)
1334 exit_program(1);
1335 return;
1336 }
1337
1338 enc = ost->st->codec;
1339
1340 if (!subtitle_out) {
1341 subtitle_out = av_malloc(subtitle_out_max_size);
1342 }
1343
1344 /* Note: DVB subtitle need one packet to draw them and one other
1345 packet to clear them */
1346 /* XXX: signal it in the codec context ? */
1347 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1348 nb = 2;
1349 else
1350 nb = 1;
1351
7636c8c6 1352 for (i = 0; i < nb; i++) {
1270e12e
AK
1353 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1354 if (!check_recording_time(ost))
1355 return;
1356
6291d7e4
AK
1357 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1358 // start_display_time is required to be 0
7636c8c6
AD
1359 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1360 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1361 sub->start_display_time = 0;
1362 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1363 subtitle_out_max_size, sub);
1364 if (subtitle_out_size < 0) {
e3245b26 1365 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1366 exit_program(1);
1367 }
1368
1369 av_init_packet(&pkt);
6291d7e4
AK
1370 pkt.data = subtitle_out;
1371 pkt.size = subtitle_out_size;
7636c8c6 1372 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
AK
1373 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1374 /* XXX: the pts correction is handled here. Maybe handling
1375 it in the codec would be better */
1376 if (i == 0)
1377 pkt.pts += 90 * sub->start_display_time;
1378 else
1379 pkt.pts += 90 * sub->end_display_time;
1380 }
f15f02c2 1381 write_frame(s, &pkt, ost);
6291d7e4
AK
1382 }
1383}
1384
87ef060c
AC
1385static void do_video_out(AVFormatContext *s,
1386 OutputStream *ost,
87ef060c
AC
1387 AVFrame *in_picture,
1388 int *frame_size, float quality)
1389{
74b961db
AK
1390 int ret, format_video_sync;
1391 AVPacket pkt;
1392 AVCodecContext *enc = ost->st->codec;
87ef060c
AC
1393
1394 *frame_size = 0;
1395
553735f5 1396 format_video_sync = video_sync_method;
e8c04f62
AK
1397 if (format_video_sync == VSYNC_AUTO)
1398 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1399 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
74b961db
AK
1400 if (format_video_sync != VSYNC_PASSTHROUGH &&
1401 ost->frame_number &&
1402 in_picture->pts != AV_NOPTS_VALUE &&
1403 in_picture->pts < ost->sync_opts) {
d43040e2
AK
1404 nb_frames_drop++;
1405 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1406 return;
d43040e2 1407 }
87ef060c 1408
74b961db
AK
1409 if (in_picture->pts == AV_NOPTS_VALUE)
1410 in_picture->pts = ost->sync_opts;
1411 ost->sync_opts = in_picture->pts;
1412
1413
1270e12e 1414 if (!ost->frame_number)
74b961db 1415 ost->first_pts = in_picture->pts;
1270e12e 1416
39885a4b
AK
1417 av_init_packet(&pkt);
1418 pkt.data = NULL;
1419 pkt.size = 0;
6291d7e4 1420
39885a4b
AK
1421 if (!check_recording_time(ost) ||
1422 ost->frame_number >= ost->max_frames)
1423 return;
1270e12e 1424
39885a4b
AK
1425 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1426 enc->codec->id == CODEC_ID_RAWVIDEO) {
1427 /* raw pictures are written as AVPicture structure to
1428 avoid any copies. We support temporarily the older
1429 method. */
1430 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1431 enc->coded_frame->top_field_first = in_picture->top_field_first;
1432 pkt.data = (uint8_t *)in_picture;
1433 pkt.size = sizeof(AVPicture);
1434 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1435 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 1436
39885a4b
AK
1437 write_frame(s, &pkt, ost);
1438 } else {
1439 int got_packet;
1440 AVFrame big_picture;
1441
1442 big_picture = *in_picture;
1443 /* better than nothing: use input picture interlaced
1444 settings */
1445 big_picture.interlaced_frame = in_picture->interlaced_frame;
1446 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1447 if (ost->top_field_first == -1)
1448 big_picture.top_field_first = in_picture->top_field_first;
1449 else
1450 big_picture.top_field_first = !!ost->top_field_first;
1451 }
6291d7e4 1452
39885a4b
AK
1453 /* handles same_quant here. This is not correct because it may
1454 not be a global option */
1455 big_picture.quality = quality;
1456 if (!enc->me_threshold)
1457 big_picture.pict_type = 0;
1458 if (ost->forced_kf_index < ost->forced_kf_count &&
1459 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1460 big_picture.pict_type = AV_PICTURE_TYPE_I;
1461 ost->forced_kf_index++;
1462 }
1463 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1464 if (ret < 0) {
1465 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1466 exit_program(1);
1467 }
6291d7e4 1468
39885a4b
AK
1469 if (got_packet) {
1470 if (pkt.pts != AV_NOPTS_VALUE)
1471 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1472 if (pkt.dts != AV_NOPTS_VALUE)
1473 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1474
39885a4b
AK
1475 write_frame(s, &pkt, ost);
1476 *frame_size = pkt.size;
1477 video_size += pkt.size;
324fbadf 1478
39885a4b
AK
1479 /* if two pass, output log */
1480 if (ost->logfile && enc->stats_out) {
1481 fprintf(ost->logfile, "%s", enc->stats_out);
6291d7e4
AK
1482 }
1483 }
39885a4b
AK
1484 }
1485 ost->sync_opts++;
1486 /*
1487 * For video, number of frames in == number of packets out.
1488 * But there may be reordering, so we can't throw away frames on encoder
1489 * flush, we need to limit them here, before they go into encoder.
1490 */
1491 ost->frame_number++;
6291d7e4
AK
1492}
1493
7636c8c6
AD
1494static double psnr(double d)
1495{
1496 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1497}
1498
1499static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1500 int frame_size)
1501{
1502 AVCodecContext *enc;
1503 int frame_number;
1504 double ti1, bitrate, avg_bitrate;
1505
1506 /* this is executed just the first time do_video_stats is called */
1507 if (!vstats_file) {
1508 vstats_file = fopen(vstats_filename, "w");
1509 if (!vstats_file) {
1510 perror("fopen");
1511 exit_program(1);
1512 }
1513 }
1514
1515 enc = ost->st->codec;
1516 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1517 frame_number = ost->frame_number;
7636c8c6 1518 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1519 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1520 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1521
1522 fprintf(vstats_file,"f_size= %6d ", frame_size);
1523 /* compute pts value */
1524 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1525 if (ti1 < 0.01)
1526 ti1 = 0.01;
1527
7636c8c6 1528 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1529 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1530 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1531 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1532 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1533 }
1534}
1535
560f7774
AK
1536/* check for new output on any of the filtergraphs */
1537static int poll_filters(void)
1538{
1539 AVFilterBufferRef *picref;
1540 AVFrame *filtered_frame = NULL;
ac712309 1541 int i, frame_size;
560f7774
AK
1542
1543 for (i = 0; i < nb_output_streams; i++) {
1544 OutputStream *ost = output_streams[i];
1545 OutputFile *of = output_files[ost->file_index];
369cb092 1546 int ret = 0;
560f7774 1547
bb7431f4 1548 if (!ost->filter)
560f7774
AK
1549 continue;
1550
1551 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1552 return AVERROR(ENOMEM);
1553 } else
1554 avcodec_get_frame_defaults(ost->filtered_frame);
1555 filtered_frame = ost->filtered_frame;
1556
bb7431f4 1557 while (ret >= 0 && !ost->is_past_recording_time) {
369cb092
AK
1558 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1559 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1560 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1561 ost->st->codec->frame_size);
1562 else
1563 ret = av_buffersink_read(ost->filter->filter, &picref);
1564
1565 if (ret < 0)
1566 break;
1567
ac712309 1568 avfilter_copy_buf_props(filtered_frame, picref);
74b961db 1569 if (picref->pts != AV_NOPTS_VALUE)
369cb092
AK
1570 filtered_frame->pts = av_rescale_q(picref->pts,
1571 ost->filter->filter->inputs[0]->time_base,
1572 ost->st->codec->time_base) -
1573 av_rescale_q(of->start_time,
1574 AV_TIME_BASE_Q,
1575 ost->st->codec->time_base);
560f7774 1576
01e98b1b
AK
1577 if (of->start_time && filtered_frame->pts < of->start_time) {
1578 avfilter_unref_buffer(picref);
1579 continue;
1580 }
560f7774
AK
1581
1582 switch (ost->filter->filter->inputs[0]->type) {
1583 case AVMEDIA_TYPE_VIDEO:
1584 if (!ost->frame_aspect_ratio)
1585 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1586
1587 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1588 same_quant ? ost->last_quality :
1589 ost->st->codec->global_quality);
1590 if (vstats_filename && frame_size)
1591 do_video_stats(of->ctx, ost, frame_size);
1592 break;
369cb092
AK
1593 case AVMEDIA_TYPE_AUDIO:
1594 do_audio_out(of->ctx, ost, filtered_frame);
1595 break;
560f7774 1596 default:
369cb092 1597 // TODO support subtitle filters
560f7774
AK
1598 av_assert0(0);
1599 }
1600
1601 avfilter_unref_buffer(picref);
1602 }
1603 }
1604 return 0;
1605}
1606
ea9367e9 1607static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1608{
1609 char buf[1024];
1610 OutputStream *ost;
1611 AVFormatContext *oc;
1612 int64_t total_size;
1613 AVCodecContext *enc;
1614 int frame_number, vid, i;
1615 double bitrate, ti1, pts;
1616 static int64_t last_time = -1;
1617 static int qp_histogram[52];
1618
3460dd8a
AK
1619 if (!print_stats && !is_last_report)
1620 return;
1621
6291d7e4
AK
1622 if (!is_last_report) {
1623 int64_t cur_time;
1624 /* display the report every 0.5 seconds */
1625 cur_time = av_gettime();
1626 if (last_time == -1) {
1627 last_time = cur_time;
1628 return;
1629 }
1630 if ((cur_time - last_time) < 500000)
1631 return;
1632 last_time = cur_time;
1633 }
1634
1635
2e215267 1636 oc = output_files[0]->ctx;
6291d7e4
AK
1637
1638 total_size = avio_size(oc->pb);
7636c8c6
AD
1639 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1640 total_size = avio_tell(oc->pb);
6291d7e4
AK
1641
1642 buf[0] = '\0';
1643 ti1 = 1e10;
1644 vid = 0;
ea9367e9 1645 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1646 float q = -1;
2e215267 1647 ost = output_streams[i];
6291d7e4 1648 enc = ost->st->codec;
3d813e4c 1649 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1650 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1651 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1652 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1653 }
1654 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1655 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1656
1657 frame_number = ost->frame_number;
1658 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1659 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1660 if (is_last_report)
6291d7e4 1661 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1662 if (qp_hist) {
6291d7e4
AK
1663 int j;
1664 int qp = lrintf(q);
7636c8c6 1665 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1666 qp_histogram[qp]++;
7636c8c6
AD
1667 for (j = 0; j < 32; j++)
1668 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1669 }
7636c8c6 1670 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1671 int j;
7636c8c6
AD
1672 double error, error_sum = 0;
1673 double scale, scale_sum = 0;
1674 char type[3] = { 'Y','U','V' };
6291d7e4 1675 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1676 for (j = 0; j < 3; j++) {
1677 if (is_last_report) {
1678 error = enc->error[j];
1679 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1680 } else {
1681 error = enc->coded_frame->error[j];
1682 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1683 }
7636c8c6
AD
1684 if (j)
1685 scale /= 4;
6291d7e4
AK
1686 error_sum += error;
1687 scale_sum += scale;
7636c8c6 1688 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1689 }
7636c8c6 1690 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1691 }
1692 vid = 1;
1693 }
1694 /* compute min output value */
1695 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1696 if ((pts < ti1) && (pts > 0))
1697 ti1 = pts;
1698 }
1699 if (ti1 < 0.01)
1700 ti1 = 0.01;
1701
e3245b26 1702 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1703
e3245b26 1704 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1705 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1706 (double)total_size / 1024, ti1, bitrate);
1707
e3245b26
AK
1708 if (nb_frames_dup || nb_frames_drop)
1709 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1710 nb_frames_dup, nb_frames_drop);
6291d7e4 1711
f5646a32 1712 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1713
e3245b26 1714 fflush(stderr);
6291d7e4 1715
e3245b26 1716 if (is_last_report) {
6291d7e4 1717 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1718 av_log(NULL, AV_LOG_INFO, "\n");
1719 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1720 video_size / 1024.0,
1721 audio_size / 1024.0,
1722 extra_size / 1024.0,
1723 100.0 * (total_size - raw) / raw
6291d7e4
AK
1724 );
1725 }
1726}
1727
ea9367e9 1728static void flush_encoders(void)
4a4ce2e7
AK
1729{
1730 int i, ret;
1731
ea9367e9 1732 for (i = 0; i < nb_output_streams; i++) {
2e215267 1733 OutputStream *ost = output_streams[i];
6f1c66d5 1734 AVCodecContext *enc = ost->st->codec;
2e215267 1735 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 1736 int stop_encoding = 0;
6f1c66d5 1737
b62b5cb6 1738 if (!ost->encoding_needed)
6f1c66d5
AK
1739 continue;
1740
7636c8c6 1741 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1742 continue;
150ddbc1 1743 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1744 continue;
1745
7636c8c6 1746 for (;;) {
369cb092
AK
1747 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1748 const char *desc;
1749 int64_t *size;
6f1c66d5
AK
1750
1751 switch (ost->st->codec->codec_type) {
1752 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1753 encode = avcodec_encode_audio2;
1754 desc = "Audio";
1755 size = &audio_size;
6f1c66d5
AK
1756 break;
1757 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1758 encode = avcodec_encode_video2;
1759 desc = "Video";
1760 size = &video_size;
1761 break;
1762 default:
1763 stop_encoding = 1;
1764 }
1765
1766 if (encode) {
1767 AVPacket pkt;
1768 int got_packet;
1769 av_init_packet(&pkt);
1770 pkt.data = NULL;
1771 pkt.size = 0;
1772
1773 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1774 if (ret < 0) {
369cb092 1775 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
6f1c66d5
AK
1776 exit_program(1);
1777 }
369cb092 1778 *size += ret;
6f1c66d5
AK
1779 if (ost->logfile && enc->stats_out) {
1780 fprintf(ost->logfile, "%s", enc->stats_out);
1781 }
8e37038a 1782 if (!got_packet) {
ee458cb1
JR
1783 stop_encoding = 1;
1784 break;
1785 }
8e37038a
AK
1786 if (pkt.pts != AV_NOPTS_VALUE)
1787 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1788 if (pkt.dts != AV_NOPTS_VALUE)
1789 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1790 write_frame(os, &pkt, ost);
4a4ce2e7 1791 }
369cb092 1792
ee458cb1 1793 if (stop_encoding)
6f1c66d5 1794 break;
4a4ce2e7
AK
1795 }
1796 }
1797}
1798
7204ec1a
AK
1799/*
1800 * Check whether a packet from ist should be written into ost at this time
1801 */
1802static int check_output_constraints(InputStream *ist, OutputStream *ost)
1803{
2e215267
AK
1804 OutputFile *of = output_files[ost->file_index];
1805 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1806
1807 if (ost->source_index != ist_index)
1808 return 0;
1809
23576b3f 1810 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1811 return 0;
1812
7204ec1a
AK
1813 return 1;
1814}
1815
1816static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1817{
2e215267 1818 OutputFile *of = output_files[ost->file_index];
7204ec1a
AK
1819 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1820 AVPacket opkt;
1821
1822 av_init_packet(&opkt);
1823
1824 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1825 !ost->copy_initial_nonkeyframes)
1826 return;
1827
1270e12e 1828 if (of->recording_time != INT64_MAX &&
23576b3f 1829 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1830 ost->is_past_recording_time = 1;
1831 return;
1832 }
1833
7204ec1a
AK
1834 /* force the input stream PTS */
1835 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1836 audio_size += pkt->size;
1837 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1838 video_size += pkt->size;
1839 ost->sync_opts++;
1840 }
1841
7204ec1a
AK
1842 if (pkt->pts != AV_NOPTS_VALUE)
1843 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1844 else
1845 opkt.pts = AV_NOPTS_VALUE;
1846
1847 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1848 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1849 else
1850 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1851 opkt.dts -= ost_tb_start_time;
1852
1853 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1854 opkt.flags = pkt->flags;
1855
7636c8c6
AD
1856 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1857 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1858 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1859 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1860 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1861 ) {
1862 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1863 opkt.destruct = av_destruct_packet;
1864 } else {
1865 opkt.data = pkt->data;
1866 opkt.size = pkt->size;
1867 }
1868
f15f02c2 1869 write_frame(of->ctx, &opkt, ost);
7204ec1a 1870 ost->st->codec->frame_number++;
7204ec1a
AK
1871 av_free_packet(&opkt);
1872}
1873
2a651b71
AK
1874static void rate_emu_sleep(InputStream *ist)
1875{
2e215267 1876 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1877 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1878 int64_t now = av_gettime() - ist->start;
1879 if (pts > now)
1880 usleep(pts - now);
1881 }
1882}
1883
369cb092
AK
1884static int guess_input_channel_layout(InputStream *ist)
1885{
1886 AVCodecContext *dec = ist->st->codec;
1887
1888 if (!dec->channel_layout) {
1889 char layout_name[256];
1890
1891 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1892 if (!dec->channel_layout)
1893 return 0;
1894 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1895 dec->channels, dec->channel_layout);
1896 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1897 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1898 }
1899 return 1;
1900}
1901
0629f612 1902static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1903{
d1241ff3
JR
1904 AVFrame *decoded_frame;
1905 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1906 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 1907 int i, ret, resample_changed;
ded28ba3 1908
9179f27c 1909 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1910 return AVERROR(ENOMEM);
9179f27c
JR
1911 else
1912 avcodec_get_frame_defaults(ist->decoded_frame);
1913 decoded_frame = ist->decoded_frame;
ded28ba3 1914
d1241ff3
JR
1915 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1916 if (ret < 0) {
ded28ba3 1917 return ret;
d1241ff3 1918 }
ded28ba3 1919
ded28ba3
AK
1920 if (!*got_output) {
1921 /* no audio frame */
369cb092
AK
1922 if (!pkt->size)
1923 for (i = 0; i < ist->nb_filters; i++)
1924 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 1925 return ret;
ded28ba3
AK
1926 }
1927
d1241ff3
JR
1928 /* if the decoder provides a pts, use it instead of the last packet pts.
1929 the decoder could be delaying output by a packet or more. */
1930 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1931 ist->next_dts = decoded_frame->pts;
369cb092
AK
1932 else if (pkt->pts != AV_NOPTS_VALUE) {
1933 decoded_frame->pts = pkt->pts;
1934 pkt->pts = AV_NOPTS_VALUE;
1935 }
ded28ba3
AK
1936
1937 // preprocess audio (volume)
1938 if (audio_volume != 256) {
d1241ff3
JR
1939 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1940 void *samples = decoded_frame->data[0];
1941 switch (avctx->sample_fmt) {
ded28ba3
AK
1942 case AV_SAMPLE_FMT_U8:
1943 {
1944 uint8_t *volp = samples;
1945 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1946 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1947 *volp++ = av_clip_uint8(v);
1948 }
1949 break;
1950 }
1951 case AV_SAMPLE_FMT_S16:
1952 {
1953 int16_t *volp = samples;
1954 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1955 int v = ((*volp) * audio_volume + 128) >> 8;
1956 *volp++ = av_clip_int16(v);
1957 }
1958 break;
1959 }
1960 case AV_SAMPLE_FMT_S32:
1961 {
1962 int32_t *volp = samples;
1963 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1964 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1965 *volp++ = av_clipl_int32(v);
1966 }
1967 break;
1968 }
1969 case AV_SAMPLE_FMT_FLT:
1970 {
1971 float *volp = samples;
1972 float scale = audio_volume / 256.f;
1973 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1974 *volp++ *= scale;
1975 }
1976 break;
1977 }
1978 case AV_SAMPLE_FMT_DBL:
1979 {
1980 double *volp = samples;
1981 double scale = audio_volume / 256.;
1982 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1983 *volp++ *= scale;
1984 }
1985 break;
1986 }
1987 default:
1988 av_log(NULL, AV_LOG_FATAL,
1989 "Audio volume adjustment on sample format %s is not supported.\n",
1990 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1991 exit_program(1);
1992 }
1993 }
1994
1995 rate_emu_sleep(ist);
1996
369cb092
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1997 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1998 ist->resample_channels != avctx->channels ||
1999 ist->resample_channel_layout != decoded_frame->channel_layout ||
2000 ist->resample_sample_rate != decoded_frame->sample_rate;
2001 if (resample_changed) {
2002 char layout1[64], layout2[64];
ded28ba3 2003
369cb092
AK
2004 if (!guess_input_channel_layout(ist)) {
2005 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2006 "layout for Input Stream #%d.%d\n", ist->file_index,
2007 ist->st->index);
2008 exit_program(1);
2009 }
2010 decoded_frame->channel_layout = avctx->channel_layout;
2011
2012 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2013 ist->resample_channel_layout);
2014 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2015 decoded_frame->channel_layout);
2016
2017 av_log(NULL, AV_LOG_INFO,
2018 "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",
2019 ist->file_index, ist->st->index,
2020 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2021 ist->resample_channels, layout1,
2022 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2023 avctx->channels, layout2);
2024
2025 ist->resample_sample_fmt = decoded_frame->format;
2026 ist->resample_sample_rate = decoded_frame->sample_rate;
2027 ist->resample_channel_layout = decoded_frame->channel_layout;
2028 ist->resample_channels = avctx->channels;
2029
2030 for (i = 0; i < nb_filtergraphs; i++)
2031 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2032 configure_filtergraph(filtergraphs[i]) < 0) {
2033 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2034 exit_program(1);
2035 }
ded28ba3 2036 }
110d2af2 2037
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);
722410ad
AK
2198 else if (ist->st->r_frame_rate.num)
2199 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2200 ist->st->r_frame_rate.num},
2201 AV_TIME_BASE_Q);
b34856a1
AK
2202 else if (ist->st->codec->time_base.num != 0) {
2203 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2204 ist->st->codec->ticks_per_frame;
2205 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2206 }
82963f8f
AK
2207 break;
2208 case AVMEDIA_TYPE_SUBTITLE:
2209 ret = transcode_subtitles(ist, &avpkt, &got_output);
2210 break;
78162b4e
AK
2211 default:
2212 return -1;
2213 }
6291d7e4 2214
d3c1d37a
AK
2215 if (ret < 0)
2216 return ret;
aa38cff2
JG
2217 // touch data and size only if not EOF
2218 if (pkt) {
2219 avpkt.data += ret;
2220 avpkt.size -= ret;
2221 }
82963f8f 2222 if (!got_output) {
af8ad892 2223 continue;
82963f8f 2224 }
6291d7e4 2225 }
6291d7e4 2226
7204ec1a 2227 /* handle stream copy */
2a651b71
AK
2228 if (!ist->decoding_needed) {
2229 rate_emu_sleep(ist);
23576b3f 2230 ist->last_dts = ist->next_dts;
2a651b71
AK
2231 switch (ist->st->codec->codec_type) {
2232 case AVMEDIA_TYPE_AUDIO:
3101bb66 2233 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2234 ist->st->codec->sample_rate;
2235 break;
2236 case AVMEDIA_TYPE_VIDEO:
2237 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2238 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2239 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2240 ist->st->codec->time_base.num * ticks) /
2241 ist->st->codec->time_base.den;
2242 }
2243 break;
2244 }
2245 }
ea9367e9 2246 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 2247 OutputStream *ost = output_streams[i];
7204ec1a
AK
2248
2249 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2250 continue;
2251
2252 do_streamcopy(ist, ost, pkt);
2253 }
2254
6291d7e4
AK
2255 return 0;
2256}
2257
ea9367e9 2258static void print_sdp(void)
6291d7e4
AK
2259{
2260 char sdp[2048];
af70aa45 2261 int i;
ea9367e9 2262 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2263
2264 if (!avc)
2265 exit_program(1);
ea9367e9 2266 for (i = 0; i < nb_output_files; i++)
2e215267 2267 avc[i] = output_files[i]->ctx;
6291d7e4 2268
ea9367e9 2269 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2270 printf("SDP:\n%s\n", sdp);
2271 fflush(stdout);
af70aa45 2272 av_freep(&avc);
6291d7e4
AK
2273}
2274
ea9367e9 2275static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2276{
2277 int i;
2e215267 2278 InputStream *ist = input_streams[ist_index];
630902a1
AK
2279 if (ist->decoding_needed) {
2280 AVCodec *codec = ist->dec;
630902a1 2281 if (!codec) {
9a414d89 2282 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2283 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2284 return AVERROR(EINVAL);
2285 }
2286
2287 /* update requested sample format for the decoder based on the
2288 corresponding encoder sample format */
2289 for (i = 0; i < nb_output_streams; i++) {
2e215267 2290 OutputStream *ost = output_streams[i];
630902a1
AK
2291 if (ost->source_index == ist_index) {
2292 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2293 break;
2294 }
2295 }
2296
64dca32c
AK
2297 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2298 ist->st->codec->get_buffer = codec_get_buffer;
2299 ist->st->codec->release_buffer = codec_release_buffer;
3ffa2335 2300 ist->st->codec->opaque = &ist->buffer_pool;
64dca32c
AK
2301 }
2302
2473a45c
JG
2303 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2304 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2305 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2306 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2307 ist->file_index, ist->st->index);
2308 return AVERROR(EINVAL);
2309 }
2310 assert_codec_experimental(ist->st->codec, 0);
2311 assert_avoptions(ist->opts);
2312 }
2313
23576b3f 2314 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 2315 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2316 init_pts_correction(&ist->pts_ctx);
2317 ist->is_start = 1;
2318
2319 return 0;
2320}
2321
3b266da3
AK
2322static InputStream *get_input_stream(OutputStream *ost)
2323{
2324 if (ost->source_index >= 0)
2325 return input_streams[ost->source_index];
2326
2327 if (ost->filter) {
2328 FilterGraph *fg = ost->filter->graph;
2329 int i;
2330
2331 for (i = 0; i < fg->nb_inputs; i++)
2332 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2333 return fg->inputs[i]->ist;
2334 }
2335
2336 return NULL;
2337}
2338
ea9367e9 2339static int transcode_init(void)
6291d7e4 2340{
2c474ddb 2341 int ret = 0, i, j, k;
1bb77e51 2342 AVFormatContext *oc;
6291d7e4 2343 AVCodecContext *codec, *icodec;
4288e031 2344 OutputStream *ost;
6291d7e4
AK
2345 InputStream *ist;
2346 char error[1024];
2347 int want_sdp = 1;
b0c9e8e0 2348
f4805328
AK
2349 /* init framerate emulation */
2350 for (i = 0; i < nb_input_files; i++) {
2e215267 2351 InputFile *ifile = input_files[i];
f4805328
AK
2352 if (ifile->rate_emu)
2353 for (j = 0; j < ifile->nb_streams; j++)
2e215267 2354 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 2355 }
6291d7e4
AK
2356
2357 /* output stream init */
03f30c83 2358 for (i = 0; i < nb_output_files; i++) {
2e215267 2359 oc = output_files[i]->ctx;
1bb77e51
AK
2360 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2361 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2362 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2363 return AVERROR(EINVAL);
6291d7e4 2364 }
6291d7e4
AK
2365 }
2366
3b266da3
AK
2367 /* init complex filtergraphs */
2368 for (i = 0; i < nb_filtergraphs; i++)
2369 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2370 return ret;
2371
6291d7e4 2372 /* for each output stream, we compute the right encoding parameters */
4288e031 2373 for (i = 0; i < nb_output_streams; i++) {
2e215267
AK
2374 ost = output_streams[i];
2375 oc = output_files[ost->file_index]->ctx;
3b266da3 2376 ist = get_input_stream(ost);
6291d7e4 2377
4dbc6cee
AK
2378 if (ost->attachment_filename)
2379 continue;
2380
03f30c83 2381 codec = ost->st->codec;
6291d7e4 2382
3b266da3
AK
2383 if (ist) {
2384 icodec = ist->st->codec;
2385
2386 ost->st->disposition = ist->st->disposition;
2387 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2388 codec->chroma_sample_location = icodec->chroma_sample_location;
2389 }
6291d7e4 2390
3d813e4c 2391 if (ost->stream_copy) {
8c4022ac
AK
2392 uint64_t extra_size;
2393
2394 av_assert0(ist && !ost->filter);
2395
2396 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 2397
e6d2b737 2398 if (extra_size > INT_MAX) {
eaf2d37a 2399 return AVERROR(EINVAL);
e6d2b737 2400 }
6291d7e4
AK
2401
2402 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2403 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2404 codec->codec_type = icodec->codec_type;
2405
03f30c83
AK
2406 if (!codec->codec_tag) {
2407 if (!oc->oformat->codec_tag ||
2408 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2409 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2410 codec->codec_tag = icodec->codec_tag;
2411 }
2412
03f30c83 2413 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2414 codec->rc_max_rate = icodec->rc_max_rate;
2415 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2416 codec->field_order = icodec->field_order;
03f30c83 2417 codec->extradata = av_mallocz(extra_size);
e6d2b737 2418 if (!codec->extradata) {
eaf2d37a 2419 return AVERROR(ENOMEM);
e6d2b737 2420 }
6291d7e4 2421 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2422 codec->extradata_size = icodec->extradata_size;
7bb3e625 2423 if (!copy_tb) {
03f30c83 2424 codec->time_base = icodec->time_base;
6291d7e4
AK
2425 codec->time_base.num *= icodec->ticks_per_frame;
2426 av_reduce(&codec->time_base.num, &codec->time_base.den,
2427 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2428 } else
6291d7e4 2429 codec->time_base = ist->st->time_base;
03f30c83 2430
7636c8c6 2431 switch (codec->codec_type) {
6291d7e4 2432 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2433 if (audio_volume != 256) {
e3245b26 2434 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2435 exit_program(1);
2436 }
03f30c83
AK
2437 codec->channel_layout = icodec->channel_layout;
2438 codec->sample_rate = icodec->sample_rate;
2439 codec->channels = icodec->channels;
2440 codec->frame_size = icodec->frame_size;
6291d7e4 2441 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2442 codec->block_align = icodec->block_align;
6291d7e4
AK
2443 break;
2444 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2445 codec->pix_fmt = icodec->pix_fmt;
2446 codec->width = icodec->width;
2447 codec->height = icodec->height;
2448 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2449 if (!codec->sample_aspect_ratio.num) {
03f30c83 2450 codec->sample_aspect_ratio =
6291d7e4
AK
2451 ost->st->sample_aspect_ratio =
2452 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2453 ist->st->codec->sample_aspect_ratio.num ?
2454 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2455 }
2456 break;
2457 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2458 codec->width = icodec->width;
6291d7e4
AK
2459 codec->height = icodec->height;
2460 break;
2461 case AVMEDIA_TYPE_DATA:
3ccd1580 2462 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2463 break;
2464 default:
2465 abort();
2466 }
2467 } else {
2994913d
AK
2468 if (!ost->enc) {
2469 /* should only happen when a default codec is not present. */
2470 snprintf(error, sizeof(error), "Automatic encoder selection "
2471 "failed for output stream #%d:%d. Default encoder for "
2472 "format %s is probably disabled. Please choose an "
2473 "encoder manually.\n", ost->file_index, ost->index,
2474 oc->oformat->name);
2475 ret = AVERROR(EINVAL);
2476 goto dump_format;
2477 }
03f30c83 2478
3b266da3
AK
2479 if (ist)
2480 ist->decoding_needed = 1;
11fdb7e1 2481 ost->encoding_needed = 1;
03f30c83 2482
74b961db
AK
2483 /*
2484 * We want CFR output if and only if one of those is true:
2485 * 1) user specified output framerate with -r
2486 * 2) user specified -vsync cfr
2487 * 3) output format is CFR and the user didn't force vsync to
2488 * something else than CFR
2489 *
2490 * in such a case, set ost->frame_rate
2491 */
2492 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2493 !ost->frame_rate.num && ist &&
2494 (video_sync_method == VSYNC_CFR ||
2495 (video_sync_method == VSYNC_AUTO &&
2496 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2497 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2498 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2499 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2500 ost->frame_rate = ost->enc->supported_framerates[idx];
2501 }
2502 }
2503
369cb092
AK
2504 if (!ost->filter &&
2505 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2506 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
2507 FilterGraph *fg;
2508 fg = init_simple_filtergraph(ist, ost);
8daf21d5 2509 if (configure_filtergraph(fg)) {
3b266da3
AK
2510 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2511 exit(1);
2512 }
369cb092 2513 }
3b266da3 2514
369cb092
AK
2515 switch (codec->codec_type) {
2516 case AVMEDIA_TYPE_AUDIO:
2517 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2518 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2519 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2520 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2521 codec->time_base = (AVRational){ 1, codec->sample_rate };
2522 break;
2523 case AVMEDIA_TYPE_VIDEO:
74b961db 2524 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 2525
3b266da3
AK
2526 codec->width = ost->filter->filter->inputs[0]->w;
2527 codec->height = ost->filter->filter->inputs[0]->h;
2528 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2529 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2530 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2531 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2532 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 2533
9dced854
AK
2534 if (codec->width != icodec->width ||
2535 codec->height != icodec->height ||
2536 codec->pix_fmt != icodec->pix_fmt) {
b7327887
AK
2537 codec->bits_per_raw_sample = 0;
2538 }
2539
6291d7e4
AK
2540 break;
2541 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2542 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2543 break;
2544 default:
2545 abort();
2546 break;
2547 }
2548 /* two pass mode */
515901fa 2549 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2550 char logfilename[1024];
2551 FILE *f;
2552
2553 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2554 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2555 i);
6e8be949
AK
2556 if (!strcmp(ost->enc->name, "libx264")) {
2557 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2558 } else {
64334ddb
AK
2559 if (codec->flags & CODEC_FLAG_PASS1) {
2560 f = fopen(logfilename, "wb");
2561 if (!f) {
2562 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2563 logfilename, strerror(errno));
2564 exit_program(1);
2565 }
2566 ost->logfile = f;
2567 } else {
2568 char *logbuffer;
2569 size_t logbuffer_size;
2570 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2571 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2572 logfilename);
2573 exit_program(1);
2574 }
2575 codec->stats_in = logbuffer;
6291d7e4 2576 }
6e8be949 2577 }
6291d7e4
AK
2578 }
2579 }
6291d7e4
AK
2580 }
2581
2582 /* open each encoder */
4288e031 2583 for (i = 0; i < nb_output_streams; i++) {
2e215267 2584 ost = output_streams[i];
6291d7e4 2585 if (ost->encoding_needed) {
03f30c83 2586 AVCodec *codec = ost->enc;
3b266da3 2587 AVCodecContext *dec = NULL;
3b266da3
AK
2588
2589 if ((ist = get_input_stream(ost)))
2590 dec = ist->st->codec;
2591 if (dec && dec->subtitle_header) {
6291d7e4
AK
2592 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2593 if (!ost->st->codec->subtitle_header) {
2594 ret = AVERROR(ENOMEM);
2595 goto dump_format;
2596 }
2597 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2598 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2599 }
2473a45c
JG
2600 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2601 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2602 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2603 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
2604 ost->file_index, ost->index);
2605 ret = AVERROR(EINVAL);
2606 goto dump_format;
2607 }
2608 assert_codec_experimental(ost->st->codec, 1);
2609 assert_avoptions(ost->opts);
2610 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2611 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2612 "It takes bits/s as argument, not kbits/s\n");
2613 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2614
2615 if (ost->st->codec->me_threshold)
2e215267 2616 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2617 }
2618 }
2619
630902a1
AK
2620 /* init input streams */
2621 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2622 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2623 goto dump_format;
6291d7e4 2624
2c474ddb
AK
2625 /* discard unused programs */
2626 for (i = 0; i < nb_input_files; i++) {
2e215267 2627 InputFile *ifile = input_files[i];
2c474ddb
AK
2628 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2629 AVProgram *p = ifile->ctx->programs[j];
2630 int discard = AVDISCARD_ALL;
2631
2632 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2633 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2634 discard = AVDISCARD_DEFAULT;
2635 break;
2636 }
2637 p->discard = discard;
2638 }
2639 }
2640
6291d7e4 2641 /* open files and write file headers */
af70aa45 2642 for (i = 0; i < nb_output_files; i++) {
2e215267 2643 oc = output_files[i]->ctx;
1bb77e51 2644 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
2645 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2646 char errbuf[128];
2647 const char *errbuf_ptr = errbuf;
2648 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2649 errbuf_ptr = strerror(AVUNERROR(ret));
2650 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
6291d7e4
AK
2651 ret = AVERROR(EINVAL);
2652 goto dump_format;
2653 }
2e215267 2654 assert_avoptions(output_files[i]->opts);
1bb77e51 2655 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2656 want_sdp = 0;
2657 }
2658 }
2659
2660 dump_format:
2661 /* dump the file output parameters - cannot be done before in case
2662 of stream copy */
03f30c83 2663 for (i = 0; i < nb_output_files; i++) {
2e215267 2664 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2665 }
2666
2667 /* dump the stream mapping */
e3245b26 2668 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2669 for (i = 0; i < nb_input_streams; i++) {
2670 ist = input_streams[i];
2671
2672 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
2673 if (ist->filters[j]->graph->graph_desc) {
2674 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2675 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2676 ist->filters[j]->name);
3b266da3
AK
2677 if (nb_filtergraphs > 1)
2678 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2679 av_log(NULL, AV_LOG_INFO, "\n");
2680 }
2681 }
2682 }
2683
e3245b26 2684 for (i = 0; i < nb_output_streams; i++) {
2e215267 2685 ost = output_streams[i];
4dbc6cee
AK
2686
2687 if (ost->attachment_filename) {
2688 /* an attached file */
2689 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2690 ost->attachment_filename, ost->file_index, ost->index);
2691 continue;
2692 }
3b266da3
AK
2693
2694 if (ost->filter && ost->filter->graph->graph_desc) {
2695 /* output from a complex graph */
cf6c38c6 2696 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2697 if (nb_filtergraphs > 1)
2698 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2699
2700 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2701 ost->index, ost->enc ? ost->enc->name : "?");
2702 continue;
2703 }
2704
9a414d89 2705 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2706 input_streams[ost->source_index]->file_index,
2707 input_streams[ost->source_index]->st->index,
e3245b26
AK
2708 ost->file_index,
2709 ost->index);
2e215267 2710 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2711 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2712 ost->sync_ist->file_index,
2713 ost->sync_ist->st->index);
3d813e4c 2714 if (ost->stream_copy)
e3245b26
AK
2715 av_log(NULL, AV_LOG_INFO, " (copy)");
2716 else
2e215267
AK
2717 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2718 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2719 ost->enc ? ost->enc->name : "?");
2720 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2721 }
2722
2723 if (ret) {
e3245b26 2724 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2725 return ret;
6291d7e4
AK
2726 }
2727
2728 if (want_sdp) {
ea9367e9 2729 print_sdp();
6291d7e4
AK
2730 }
2731
eaf2d37a
AC
2732 return 0;
2733}
2734
2f51ec2b
AK
2735/**
2736 * @return 1 if there are still streams where more output is wanted,
2737 * 0 otherwise
2738 */
2739static int need_output(void)
2740{
2741 int i;
2742
2743 for (i = 0; i < nb_output_streams; i++) {
2744 OutputStream *ost = output_streams[i];
2745 OutputFile *of = output_files[ost->file_index];
2746 AVFormatContext *os = output_files[ost->file_index]->ctx;
2747
2748 if (ost->is_past_recording_time ||
2749 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2750 continue;
e58b75f7 2751 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2752 int j;
2753 for (j = 0; j < of->ctx->nb_streams; j++)
2754 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2755 continue;
2756 }
2757
2758 return 1;
2759 }
2760
2761 return 0;
2762}
2763
a508e7a1
AK
2764static int select_input_file(uint8_t *no_packet)
2765{
2766 int64_t ipts_min = INT64_MAX;
2767 int i, file_index = -1;
2768
2769 for (i = 0; i < nb_input_streams; i++) {
2770 InputStream *ist = input_streams[i];
2771 int64_t ipts = ist->last_dts;
2772
2773 if (ist->discard || no_packet[ist->file_index])
2774 continue;
2775 if (!input_files[ist->file_index]->eof_reached) {
2776 if (ipts < ipts_min) {
2777 ipts_min = ipts;
2778 file_index = ist->file_index;
2779 }
2780 }
2781 }
2782
2783 return file_index;
2784}
2785
47b812e9 2786#if HAVE_PTHREADS
5db5169e
AK
2787static void *input_thread(void *arg)
2788{
2789 InputFile *f = arg;
2790 int ret = 0;
2791
2792 while (!transcoding_finished && ret >= 0) {
2793 AVPacket pkt;
2794 ret = av_read_frame(f->ctx, &pkt);
2795
2796 if (ret == AVERROR(EAGAIN)) {
2797 usleep(10000);
2798 ret = 0;
2799 continue;
2800 } else if (ret < 0)
2801 break;
2802
2803 pthread_mutex_lock(&f->fifo_lock);
2804 while (!av_fifo_space(f->fifo))
2805 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2806
2807 av_dup_packet(&pkt);
2808 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2809
2810 pthread_mutex_unlock(&f->fifo_lock);
2811 }
2812
2813 f->finished = 1;
2814 return NULL;
2815}
2816
2817static void free_input_threads(void)
2818{
2819 int i;
2820
2821 if (nb_input_files == 1)
2822 return;
2823
2824 transcoding_finished = 1;
2825
2826 for (i = 0; i < nb_input_files; i++) {
2827 InputFile *f = input_files[i];
2828 AVPacket pkt;
2829
9034b0ed 2830 if (!f->fifo || f->joined)
5db5169e
AK
2831 continue;
2832
2833 pthread_mutex_lock(&f->fifo_lock);
2834 while (av_fifo_size(f->fifo)) {
2835 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2836 av_free_packet(&pkt);
2837 }
2838 pthread_cond_signal(&f->fifo_cond);
2839 pthread_mutex_unlock(&f->fifo_lock);
2840
2841 pthread_join(f->thread, NULL);
2842 f->joined = 1;
2843
2844 while (av_fifo_size(f->fifo)) {
2845 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2846 av_free_packet(&pkt);
2847 }
2848 av_fifo_free(f->fifo);
2849 }
2850}
2851
2852static int init_input_threads(void)
2853{
2854 int i, ret;
2855
2856 if (nb_input_files == 1)
2857 return 0;
2858
2859 for (i = 0; i < nb_input_files; i++) {
2860 InputFile *f = input_files[i];
2861
2862 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2863 return AVERROR(ENOMEM);
2864
2865 pthread_mutex_init(&f->fifo_lock, NULL);
2866 pthread_cond_init (&f->fifo_cond, NULL);
2867
2868 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2869 return AVERROR(ret);
2870 }
2871 return 0;
2872}
2873
2874static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2875{
2876 int ret = 0;
2877
2878 pthread_mutex_lock(&f->fifo_lock);
2879
2880 if (av_fifo_size(f->fifo)) {
2881 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2882 pthread_cond_signal(&f->fifo_cond);
2883 } else {
2884 if (f->finished)
2885 ret = AVERROR_EOF;
2886 else
2887 ret = AVERROR(EAGAIN);
2888 }
2889
2890 pthread_mutex_unlock(&f->fifo_lock);
2891
2892 return ret;
2893}
2894#endif
2895
2896static int get_input_packet(InputFile *f, AVPacket *pkt)
2897{
47b812e9 2898#if HAVE_PTHREADS
5db5169e
AK
2899 if (nb_input_files > 1)
2900 return get_input_packet_mt(f, pkt);
2901#endif
2902 return av_read_frame(f->ctx, pkt);
2903}
2904
eaf2d37a
AC
2905/*
2906 * The following code is the main loop of the file converter
2907 */
ea9367e9 2908static int transcode(void)
eaf2d37a
AC
2909{
2910 int ret, i;
2911 AVFormatContext *is, *os;
2912 OutputStream *ost;
2913 InputStream *ist;
2914 uint8_t *no_packet;
7636c8c6 2915 int no_packet_count = 0;
eaf2d37a
AC
2916 int64_t timer_start;
2917
2918 if (!(no_packet = av_mallocz(nb_input_files)))
2919 exit_program(1);
2920
ea9367e9 2921 ret = transcode_init();
eaf2d37a
AC
2922 if (ret < 0)
2923 goto fail;
2924
e3245b26 2925 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2926 term_init();
2927
2928 timer_start = av_gettime();
2929
47b812e9 2930#if HAVE_PTHREADS
5db5169e
AK
2931 if ((ret = init_input_threads()) < 0)
2932 goto fail;
2933#endif
2934
7636c8c6 2935 for (; received_sigterm == 0;) {
2f51ec2b 2936 int file_index, ist_index;
6291d7e4 2937 AVPacket pkt;
6291d7e4 2938
3b266da3 2939 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2940 if (!need_output()) {
2941 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2942 break;
2f51ec2b 2943 }
3b266da3 2944
a508e7a1
AK
2945 /* select the stream that we must read now */
2946 file_index = select_input_file(no_packet);
6291d7e4
AK
2947 /* if none, if is finished */
2948 if (file_index < 0) {
7636c8c6
AD
2949 if (no_packet_count) {
2950 no_packet_count = 0;
b0c9e8e0 2951 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2952 usleep(10000);
2953 continue;
2954 }
5db5169e 2955 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
6291d7e4
AK
2956 break;
2957 }
2958
2e215267 2959 is = input_files[file_index]->ctx;
5db5169e
AK
2960 ret = get_input_packet(input_files[file_index], &pkt);
2961
7636c8c6
AD
2962 if (ret == AVERROR(EAGAIN)) {
2963 no_packet[file_index] = 1;
6291d7e4
AK
2964 no_packet_count++;
2965 continue;
2966 }
2967 if (ret < 0) {
2e215267 2968 input_files[file_index]->eof_reached = 1;
9e8aae44
AK
2969
2970 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
2971 ist = input_streams[input_files[file_index]->ist_index + i];
2972 if (ist->decoding_needed)
2973 output_packet(ist, NULL);
2974 }
2975
6291d7e4
AK
2976 if (opt_shortest)
2977 break;
2978 else
2979 continue;
2980 }
2981
7636c8c6 2982 no_packet_count = 0;
b0c9e8e0 2983 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2984
2985 if (do_pkt_dump) {
2986 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2987 is->streams[pkt.stream_index]);
2988 }
2989 /* the following test is needed in case new streams appear
2990 dynamically in stream : we ignore them */
2e215267 2991 if (pkt.stream_index >= input_files[file_index]->nb_streams)
6291d7e4 2992 goto discard_packet;
2e215267
AK
2993 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2994 ist = input_streams[ist_index];
6291d7e4
AK
2995 if (ist->discard)
2996 goto discard_packet;
2997
2998 if (pkt.dts != AV_NOPTS_VALUE)
2e215267 2999 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 3000 if (pkt.pts != AV_NOPTS_VALUE)
2e215267 3001 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 3002
7636c8c6 3003 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 3004 pkt.pts *= ist->ts_scale;
7636c8c6 3005 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 3006 pkt.dts *= ist->ts_scale;
6291d7e4 3007
7636c8c6 3008 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 3009 // ist->next_dts,
7636c8c6
AD
3010 // pkt.dts, input_files[ist->file_index].ts_offset,
3011 // ist->st->codec->codec_type);
3101bb66 3012 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 3013 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 3014 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 3015 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 3016 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2e215267 3017 input_files[ist->file_index]->ts_offset -= delta;
7636c8c6
AD
3018 av_log(NULL, AV_LOG_DEBUG,
3019 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2e215267 3020 delta, input_files[ist->file_index]->ts_offset);
6291d7e4 3021 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 3022 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
3023 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3024 }
3025 }
3026
7636c8c6 3027 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
560f7774 3028 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
9a414d89 3029 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 3030 ist->file_index, ist->st->index);
6291d7e4
AK
3031 if (exit_on_error)
3032 exit_program(1);
3033 av_free_packet(&pkt);
b9630bcf 3034 continue;
6291d7e4
AK
3035 }
3036
3037 discard_packet:
3038 av_free_packet(&pkt);
3039
3040 /* dump report by using the output first video and audio streams */
ea9367e9 3041 print_report(0, timer_start);
6291d7e4 3042 }
47b812e9 3043#if HAVE_PTHREADS
5db5169e
AK
3044 free_input_threads();
3045#endif
6291d7e4
AK
3046
3047 /* at the end of stream, we must flush the decoder buffers */
3048 for (i = 0; i < nb_input_streams; i++) {
2e215267 3049 ist = input_streams[i];
9e8aae44 3050 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 3051 output_packet(ist, NULL);
6291d7e4
AK
3052 }
3053 }
560f7774 3054 poll_filters();
ea9367e9 3055 flush_encoders();
6291d7e4
AK
3056
3057 term_exit();
3058
3059 /* write the trailer if needed and close file */
7636c8c6 3060 for (i = 0; i < nb_output_files; i++) {
2e215267 3061 os = output_files[i]->ctx;
6291d7e4
AK
3062 av_write_trailer(os);
3063 }
3064
3065 /* dump report by using the first video and audio streams */
ea9367e9 3066 print_report(1, timer_start);
6291d7e4
AK
3067
3068 /* close each encoder */
4288e031 3069 for (i = 0; i < nb_output_streams; i++) {
2e215267 3070 ost = output_streams[i];
6291d7e4
AK
3071 if (ost->encoding_needed) {
3072 av_freep(&ost->st->codec->stats_in);
3073 avcodec_close(ost->st->codec);
3074 }
6291d7e4
AK
3075 }
3076
3077 /* close each decoder */
3078 for (i = 0; i < nb_input_streams; i++) {
2e215267 3079 ist = input_streams[i];
6291d7e4
AK
3080 if (ist->decoding_needed) {
3081 avcodec_close(ist->st->codec);
3082 }
3083 }
3084
3085 /* finished ! */
3086 ret = 0;
3087
3088 fail:
b0c9e8e0 3089 av_freep(&no_packet);
47b812e9 3090#if HAVE_PTHREADS
5db5169e
AK
3091 free_input_threads();
3092#endif
6291d7e4 3093
4288e031
AK
3094 if (output_streams) {
3095 for (i = 0; i < nb_output_streams; i++) {
2e215267 3096 ost = output_streams[i];
6291d7e4 3097 if (ost) {
3d813e4c 3098 if (ost->stream_copy)
6291d7e4
AK
3099 av_freep(&ost->st->codec->extradata);
3100 if (ost->logfile) {
3101 fclose(ost->logfile);
3102 ost->logfile = NULL;
3103 }
6291d7e4 3104 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 3105 av_free(ost->forced_kf_pts);
6291d7e4 3106 av_dict_free(&ost->opts);
6291d7e4
AK
3107 }
3108 }
6291d7e4
AK
3109 }
3110 return ret;
3111}
3112
ca46fde7 3113static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
3114{
3115 int x = 0, y = 0;
3116 double ar = 0;
3117 const char *p;
3118 char *end;
3119
3120 p = strchr(arg, ':');
3121 if (p) {
3122 x = strtol(arg, &end, 10);
3123 if (end == p)
7636c8c6 3124 y = strtol(end + 1, &end, 10);
6291d7e4
AK
3125 if (x > 0 && y > 0)
3126 ar = (double)x / (double)y;
3127 } else
3128 ar = strtod(arg, NULL);
3129
3130 if (!ar) {
e3245b26 3131 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 3132 exit_program(1);
6291d7e4 3133 }
ca46fde7 3134 return ar;
6291d7e4
AK
3135}
3136
35e6f8c1 3137static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3138{
35e6f8c1 3139 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
3140}
3141
35e6f8c1 3142static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3143{
35e6f8c1 3144 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
3145}
3146
35e6f8c1 3147static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3148{
35e6f8c1 3149 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
3150}
3151
35e6f8c1 3152static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3153{
35e6f8c1 3154 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
3155}
3156
575ec4e1 3157static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3158{
8d2e4a7e
AK
3159 StreamMap *m = NULL;
3160 int i, negative = 0, file_idx;
3161 int sync_file_idx = -1, sync_stream_idx;
3162 char *p, *sync;
3163 char *map;
6291d7e4 3164
8d2e4a7e
AK
3165 if (*arg == '-') {
3166 negative = 1;
3167 arg++;
3168 }
3169 map = av_strdup(arg);
6291d7e4 3170
8d2e4a7e
AK
3171 /* parse sync stream first, just pick first matching stream */
3172 if (sync = strchr(map, ',')) {
3173 *sync = 0;
3174 sync_file_idx = strtol(sync + 1, &sync, 0);
3175 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 3176 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
3177 exit_program(1);
3178 }
3179 if (*sync)
3180 sync++;
2e215267
AK
3181 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3182 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3183 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
8d2e4a7e
AK
3184 sync_stream_idx = i;
3185 break;
3186 }
2e215267 3187 if (i == input_files[sync_file_idx]->nb_streams) {
f24facd3 3188 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
3189 "match any streams.\n", arg);
3190 exit_program(1);
3191 }
3192 }
6291d7e4 3193
8d2e4a7e 3194
3b266da3
AK
3195 if (map[0] == '[') {
3196 /* this mapping refers to lavfi output */
3197 const char *c = map + 1;
3198 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3199 &o->nb_stream_maps, o->nb_stream_maps + 1);
3200 m = &o->stream_maps[o->nb_stream_maps - 1];
3201 m->linklabel = av_get_token(&c, "]");
3202 if (!m->linklabel) {
3203 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3204 exit_program(1);
3205 }
3206 } else {
3e901cbc
AK
3207 file_idx = strtol(map, &p, 0);
3208 if (file_idx >= nb_input_files || file_idx < 0) {
3209 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3210 exit_program(1);
8d2e4a7e 3211 }
3e901cbc
AK
3212 if (negative)
3213 /* disable some already defined maps */
3214 for (i = 0; i < o->nb_stream_maps; i++) {
3215 m = &o->stream_maps[i];
3216 if (file_idx == m->file_index &&
3217 check_stream_specifier(input_files[m->file_index]->ctx,
3218 input_files[m->file_index]->ctx->streams[m->stream_index],
3219 *p == ':' ? p + 1 : p) > 0)
3220 m->disabled = 1;
3221 }
3222 else
3223 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3224 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3225 *p == ':' ? p + 1 : p) <= 0)
3226 continue;
3227 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3228 &o->nb_stream_maps, o->nb_stream_maps + 1);
3229 m = &o->stream_maps[o->nb_stream_maps - 1];
3230
3231 m->file_index = file_idx;
3232 m->stream_index = i;
3233
3234 if (sync_file_idx >= 0) {
3235 m->sync_file_index = sync_file_idx;
3236 m->sync_stream_index = sync_stream_idx;
3237 } else {
3238 m->sync_file_index = file_idx;
3239 m->sync_stream_index = i;
3240 }
8d2e4a7e 3241 }
3b266da3 3242 }
8d2e4a7e
AK
3243
3244 if (!m) {
f24facd3 3245 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
3246 exit_program(1);
3247 }
3248
3249 av_freep(&map);
6291d7e4
AK
3250 return 0;
3251}
3252
4dbc6cee
AK
3253static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3254{
3255 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3256 &o->nb_attachments, o->nb_attachments + 1);
3257 o->attachments[o->nb_attachments - 1] = arg;
3258 return 0;
3259}
3260
a7b5e841
AK
3261/**
3262 * Parse a metadata specifier in arg.
3263 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3264 * @param index for type c/p, chapter/program index is written here
3265 * @param stream_spec for type s, the stream specifier is written here
3266 */
3267static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 3268{
039267f1 3269 if (*arg) {
a2a38d96 3270 *type = *arg;
6291d7e4
AK
3271 switch (*arg) {
3272 case 'g':
3273 break;
3274 case 's':
a7b5e841
AK
3275 if (*(++arg) && *arg != ':') {
3276 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3277 exit_program(1);
3278 }
3279 *stream_spec = *arg == ':' ? arg + 1 : "";
3280 break;
6291d7e4
AK
3281 case 'c':
3282 case 'p':
e6e6060c
AK
3283 if (*(++arg) == ':')
3284 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3285 break;
3286 default:
e3245b26 3287 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3288 exit_program(1);
3289 }
3290 } else
3291 *type = 'g';
3292}
3293
a7b5e841 3294static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3295{
a7b5e841
AK
3296 AVDictionary **meta_in = NULL;
3297 AVDictionary **meta_out;
3298 int i, ret = 0;
3299 char type_in, type_out;
3300 const char *istream_spec = NULL, *ostream_spec = NULL;
3301 int idx_in = 0, idx_out = 0;
6291d7e4 3302
a7b5e841
AK
3303 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3304 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3305
a7b5e841 3306 if (type_in == 'g' || type_out == 'g')
847529f8 3307 o->metadata_global_manual = 1;
a7b5e841 3308 if (type_in == 's' || type_out == 's')
847529f8 3309 o->metadata_streams_manual = 1;
a7b5e841 3310 if (type_in == 'c' || type_out == 'c')
847529f8 3311 o->metadata_chapters_manual = 1;
6291d7e4 3312
a7b5e841
AK
3313#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3314 if ((index) < 0 || (index) >= (nb_elems)) {\
3315 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3316 (desc), (index));\
3317 exit_program(1);\
3318 }
3319
3320#define SET_DICT(type, meta, context, index)\
3321 switch (type) {\
3322 case 'g':\
3323 meta = &context->metadata;\
3324 break;\
3325 case 'c':\
3326 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3327 meta = &context->chapters[index]->metadata;\
3328 break;\
3329 case 'p':\
3330 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3331 meta = &context->programs[index]->metadata;\
3332 break;\
3333 }\
3334
3335 SET_DICT(type_in, meta_in, ic, idx_in);
3336 SET_DICT(type_out, meta_out, oc, idx_out);
3337
3338 /* for input streams choose first matching stream */
3339 if (type_in == 's') {
3340 for (i = 0; i < ic->nb_streams; i++) {
3341 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3342 meta_in = &ic->streams[i]->metadata;
3343 break;
3344 } else if (ret < 0)
3345 exit_program(1);
3346 }
3347 if (!meta_in) {
3348 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3349 exit_program(1);
3350 }
3351 }
3352
3353 if (type_out == 's') {
3354 for (i = 0; i < oc->nb_streams; i++) {
3355 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3356 meta_out = &oc->streams[i]->metadata;
3357 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3358 } else if (ret < 0)
3359 exit_program(1);
3360 }
3361 } else
3362 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3363
6291d7e4
AK
3364 return 0;
3365}
3366
1b648c7c 3367static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3368{
3369 const char *codec_string = encoder ? "encoder" : "decoder";
3370 AVCodec *codec;
3371
169f0647
AK
3372 codec = encoder ?
3373 avcodec_find_encoder_by_name(name) :
3374 avcodec_find_decoder_by_name(name);
7636c8c6 3375 if (!codec) {
f24facd3 3376 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3377 exit_program(1);
3378 }
7636c8c6 3379 if (codec->type != type) {
f24facd3 3380 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3381 exit_program(1);
3382 }
1b648c7c 3383 return codec;
169f0647
AK
3384}
3385
1b648c7c 3386static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3387{
169f0647 3388 char *codec_name = NULL;
169f0647 3389
35e6f8c1 3390 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3391 if (codec_name) {
3392 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3393 st->codec->codec_id = codec->id;
3394 return codec;
3395 } else
3396 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3397}
6291d7e4 3398
88867844
AK
3399/**
3400 * Add all the streams from the given input file to the global
3401 * list of input streams.
3402 */
35e6f8c1 3403static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3404{
c88d5319 3405 int i;
88867844
AK
3406
3407 for (i = 0; i < ic->nb_streams; i++) {
3408 AVStream *st = ic->streams[i];
3409 AVCodecContext *dec = st->codec;
2e215267 3410 InputStream *ist = av_mallocz(sizeof(*ist));
c9cc7629 3411 char *framerate = NULL;
2e215267
AK
3412
3413 if (!ist)
3414 exit_program(1);
88867844 3415
88867844 3416 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2e215267
AK
3417 input_streams[nb_input_streams - 1] = ist;
3418
88867844
AK
3419 ist->st = st;
3420 ist->file_index = nb_input_files;
3421 ist->discard = 1;
13f6917c 3422 st->discard = AVDISCARD_ALL;
88867844
AK
3423 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3424
059fb8c8
AK
3425 ist->ts_scale = 1.0;
3426 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3427
1b648c7c 3428 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3429
3430 switch (dec->codec_type) {
88867844 3431 case AVMEDIA_TYPE_VIDEO:
e77c8662
AK
3432 ist->resample_height = dec->height;
3433 ist->resample_width = dec->width;
3434 ist->resample_pix_fmt = dec->pix_fmt;
3435
c9cc7629
AK
3436 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3437 if (framerate && av_parse_video_rate(&ist->framerate,
3438 framerate) < 0) {
3439 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3440 framerate);
3441 exit_program(1);
3442 }
3443
88867844 3444 break;
13f6917c 3445 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
3446 guess_input_channel_layout(ist);
3447
3448 ist->resample_sample_fmt = dec->sample_fmt;
3449 ist->resample_sample_rate = dec->sample_rate;
3450 ist->resample_channels = dec->channels;
3451 ist->resample_channel_layout = dec->channel_layout;
3452
3453 break;
88867844 3454 case AVMEDIA_TYPE_DATA:
88867844 3455 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3456 case AVMEDIA_TYPE_ATTACHMENT:
3457 case AVMEDIA_TYPE_UNKNOWN:
3458 break;
3459 default:
3460 abort();
3461 }
3462 }
3463}
3464
a2c0b830
AK
3465static void assert_file_overwrite(const char *filename)
3466{
3467 if (!file_overwrite &&
3468 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3469 av_strstart(filename, "file:", NULL))) {
3470 if (avio_check(filename, 0) == 0) {
3471 if (!using_stdin) {
3472 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3473 fflush(stderr);
3474 if (!read_yesno()) {
3475 fprintf(stderr, "Not overwriting - exiting\n");
3476 exit_program(1);
3477 }
3478 }
3479 else {
3480 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3481 exit_program(1);
3482 }
3483 }
3484 }
3485}
3486
3487static void dump_attachment(AVStream *st, const char *filename)
3488{
3489 int ret;
3490 AVIOContext *out = NULL;
3491 AVDictionaryEntry *e;
3492
3493 if (!st->codec->extradata_size) {
3494 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3495 nb_input_files - 1, st->index);
3496 return;
3497 }
3498 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3499 filename = e->value;
3500 if (!*filename) {
3501 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3502 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3503 exit_program(1);
3504 }
3505
3506 assert_file_overwrite(filename);
3507
2abe947a 3508 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3509 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3510 filename);
3511 exit_program(1);
3512 }
3513
3514 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3515 avio_flush(out);
3516 avio_close(out);
3517}
3518
575ec4e1 3519static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3520{
3521 AVFormatContext *ic;
3522 AVInputFormat *file_iformat = NULL;
88867844 3523 int err, i, ret;
6291d7e4
AK
3524 int64_t timestamp;
3525 uint8_t buf[128];
3526 AVDictionary **opts;
3527 int orig_nb_streams; // number of streams before avformat_find_stream_info
3528
7041bb3b
AK
3529 if (o->format) {
3530 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3531 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3532 exit_program(1);
3533 }
6291d7e4
AK
3534 }
3535
3536 if (!strcmp(filename, "-"))
3537 filename = "pipe:";
3538
3539 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3540 !strcmp(filename, "/dev/stdin");
3541
3542 /* get default parameters from command line */
3543 ic = avformat_alloc_context();
3544 if (!ic) {
3545 print_error(filename, AVERROR(ENOMEM));
3546 exit_program(1);
3547 }
e2469ccf
AK
3548 if (o->nb_audio_sample_rate) {
3549 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3550 av_dict_set(&format_opts, "sample_rate", buf, 0);
3551 }
6a11686d 3552 if (o->nb_audio_channels) {
b1041f80
JR
3553 /* because we set audio_channels based on both the "ac" and
3554 * "channel_layout" options, we need to check that the specified
3555 * demuxer actually has the "channels" option before setting it */
3556 if (file_iformat && file_iformat->priv_class &&
3557 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
3558 AV_OPT_SEARCH_FAKE_OBJ)) {
3559 snprintf(buf, sizeof(buf), "%d",
3560 o->audio_channels[o->nb_audio_channels - 1].u.i);
3561 av_dict_set(&format_opts, "channels", buf, 0);
3562 }
6291d7e4 3563 }