doc: Replace some @file tags by more suitable markup.
[libav.git] / avconv.c
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1/*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "config.h"
23#include <ctype.h>
24#include <string.h>
25#include <math.h>
26#include <stdlib.h>
27#include <errno.h>
28#include <signal.h>
29#include <limits.h>
30#include <unistd.h>
31#include "libavformat/avformat.h"
32#include "libavdevice/avdevice.h"
33#include "libswscale/swscale.h"
bcb82fe1 34#include "libavresample/avresample.h"
6291d7e4 35#include "libavutil/opt.h"
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36#include "libavutil/audioconvert.h"
37#include "libavutil/parseutils.h"
38#include "libavutil/samplefmt.h"
39#include "libavutil/colorspace.h"
40#include "libavutil/fifo.h"
41#include "libavutil/intreadwrite.h"
42#include "libavutil/dict.h"
43#include "libavutil/mathematics.h"
44#include "libavutil/pixdesc.h"
45#include "libavutil/avstring.h"
46#include "libavutil/libm.h"
64dca32c 47#include "libavutil/imgutils.h"
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48#include "libavformat/os_support.h"
49
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50# include "libavfilter/avfilter.h"
51# include "libavfilter/avfiltergraph.h"
04a14d4d 52# include "libavfilter/buffersrc.h"
ac712309 53# include "libavfilter/buffersink.h"
6291d7e4 54# include "libavfilter/vsrc_buffer.h"
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55
56#if HAVE_SYS_RESOURCE_H
57#include <sys/types.h>
58#include <sys/time.h>
59#include <sys/resource.h>
60#elif HAVE_GETPROCESSTIMES
61#include <windows.h>
62#endif
63#if HAVE_GETPROCESSMEMORYINFO
64#include <windows.h>
65#include <psapi.h>
66#endif
67
68#if HAVE_SYS_SELECT_H
69#include <sys/select.h>
70#endif
71
72#include <time.h>
73
74#include "cmdutils.h"
75
76#include "libavutil/avassert.h"
77
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78#define VSYNC_AUTO -1
79#define VSYNC_PASSTHROUGH 0
80#define VSYNC_CFR 1
81#define VSYNC_VFR 2
82
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83const char program_name[] = "avconv";
84const int program_birth_year = 2000;
85
86/* select an input stream for an output stream */
87typedef struct StreamMap {
8d2e4a7e 88 int disabled; /** 1 is this mapping is disabled by a negative map */
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89 int file_index;
90 int stream_index;
91 int sync_file_index;
92 int sync_stream_index;
3b266da3 93 char *linklabel; /** name of an output link, for mapping lavfi outputs */
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94} StreamMap;
95
96/**
97 * select an input file for an output file
98 */
99typedef struct MetadataMap {
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100 int file; ///< file index
101 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
102 int index; ///< stream/chapter/program number
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103} MetadataMap;
104
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105static const OptionDef options[];
106
6291d7e4 107static int video_discard = 0;
f4ad238c 108static int same_quant = 0;
6291d7e4 109static int do_deinterlace = 0;
6291d7e4 110static int intra_dc_precision = 8;
6291d7e4 111static int qp_hist = 0;
6291d7e4 112
6291d7e4 113static int file_overwrite = 0;
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114static int do_benchmark = 0;
115static int do_hex_dump = 0;
116static int do_pkt_dump = 0;
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117static int do_pass = 0;
118static char *pass_logfilename_prefix = NULL;
e8c04f62 119static int video_sync_method = VSYNC_AUTO;
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120static int audio_sync_method = 0;
121static float audio_drift_threshold = 0.1;
122static int copy_ts = 0;
7bb3e625 123static int copy_tb = 1;
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124static int opt_shortest = 0;
125static char *vstats_filename;
126static FILE *vstats_file;
6291d7e4 127
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128static int audio_volume = 256;
129
130static int exit_on_error = 0;
131static int using_stdin = 0;
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132static int64_t video_size = 0;
133static int64_t audio_size = 0;
134static int64_t extra_size = 0;
135static int nb_frames_dup = 0;
136static int nb_frames_drop = 0;
137static int input_sync;
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138
139static float dts_delta_threshold = 10;
140
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141static int print_stats = 1;
142
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143#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
144
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145typedef struct InputFilter {
146 AVFilterContext *filter;
147 struct InputStream *ist;
148 struct FilterGraph *graph;
149} InputFilter;
150
151typedef struct OutputFilter {
152 AVFilterContext *filter;
153 struct OutputStream *ost;
154 struct FilterGraph *graph;
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155
156 /* temporary storage until stream maps are processed */
157 AVFilterInOut *out_tmp;
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158} OutputFilter;
159
160typedef struct FilterGraph {
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161 int index;
162 const char *graph_desc;
163
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164 AVFilterGraph *graph;
165
166 InputFilter **inputs;
167 int nb_inputs;
168 OutputFilter **outputs;
169 int nb_outputs;
170} FilterGraph;
171
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172typedef struct FrameBuffer {
173 uint8_t *base[4];
174 uint8_t *data[4];
175 int linesize[4];
176
177 int h, w;
178 enum PixelFormat pix_fmt;
179
180 int refcount;
181 struct InputStream *ist;
182 struct FrameBuffer *next;
183} FrameBuffer;
184
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185typedef struct InputStream {
186 int file_index;
187 AVStream *st;
188 int discard; /* true if stream data should be discarded */
189 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
190 AVCodec *dec;
9179f27c 191 AVFrame *decoded_frame;
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192
193 int64_t start; /* time when read started */
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194 /* predicted dts of the next packet read for this stream or (when there are
195 * several frames in a packet) of the next frame in current packet */
196 int64_t next_dts;
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197 /* dts of the last packet read for this stream */
198 int64_t last_dts;
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199 PtsCorrectionContext pts_ctx;
200 double ts_scale;
201 int is_start; /* is 1 at the start and after a discontinuity */
202 int showed_multi_packet_warning;
203 AVDictionary *opts;
64dca32c 204
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205 int resample_height;
206 int resample_width;
207 int resample_pix_fmt;
208
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209 int resample_sample_fmt;
210 int resample_sample_rate;
211 int resample_channels;
212 uint64_t resample_channel_layout;
213
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214 /* a pool of free buffers for decoded data */
215 FrameBuffer *buffer_pool;
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216
217 /* decoded data from this stream goes into all those filters
218 * currently video only */
219 InputFilter **filters;
220 int nb_filters;
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221} InputStream;
222
223typedef struct InputFile {
224 AVFormatContext *ctx;
225 int eof_reached; /* true if eof reached */
226 int ist_index; /* index of first stream in ist_table */
227 int buffer_size; /* current total buffer size */
228 int64_t ts_offset;
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229 int nb_streams; /* number of stream that avconv is aware of; may be different
230 from ctx.nb_streams if new streams appear during av_read_frame() */
f4805328 231 int rate_emu;
6494c001 232} InputFile;
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233
234typedef struct OutputStream {
235 int file_index; /* file index */
236 int index; /* stream index in the output file */
237 int source_index; /* InputStream index */
238 AVStream *st; /* stream in the output file */
239 int encoding_needed; /* true if encoding needed for this stream */
240 int frame_number;
241 /* input pts and corresponding output pts
242 for A/V sync */
7636c8c6 243 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
6291d7e4 244 struct InputStream *sync_ist; /* input stream to sync against */
7636c8c6 245 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
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246 /* pts of the first frame encoded for this stream, used for limiting
247 * recording time */
248 int64_t first_pts;
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249 AVBitStreamFilterContext *bitstream_filters;
250 AVCodec *enc;
96139b5e 251 int64_t max_frames;
836ce905 252 AVFrame *filtered_frame;
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253
254 /* video only */
6291d7e4 255 AVRational frame_rate;
bef737a7 256 int force_fps;
828e0bcb 257 int top_field_first;
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258
259 float frame_aspect_ratio;
560f7774 260 float last_quality;
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261
262 /* forced key frames */
263 int64_t *forced_kf_pts;
264 int forced_kf_count;
265 int forced_kf_index;
266
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267 FILE *logfile;
268
560f7774 269 OutputFilter *filter;
6291d7e4 270 char *avfilter;
6291d7e4 271
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272 int64_t sws_flags;
273 AVDictionary *opts;
274 int is_past_recording_time;
275 int stream_copy;
276 const char *attachment_filename;
277 int copy_initial_nonkeyframes;
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278
279 enum PixelFormat pix_fmts[2];
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280} OutputStream;
281
6291d7e4 282
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283typedef struct OutputFile {
284 AVFormatContext *ctx;
285 AVDictionary *opts;
4288e031 286 int ost_index; /* index of the first stream in output_streams */
ef44a607 287 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 288 int64_t start_time; /* start time in microseconds */
f21f294e 289 uint64_t limit_filesize;
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290} OutputFile;
291
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292static InputStream **input_streams = NULL;
293static int nb_input_streams = 0;
294static InputFile **input_files = NULL;
295static int nb_input_files = 0;
6291d7e4 296
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297static OutputStream **output_streams = NULL;
298static int nb_output_streams = 0;
299static OutputFile **output_files = NULL;
300static int nb_output_files = 0;
af70aa45 301
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302static FilterGraph **filtergraphs;
303int nb_filtergraphs;
304
575ec4e1 305typedef struct OptionsContext {
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306 /* input/output options */
307 int64_t start_time;
7041bb3b 308 const char *format;
6b779ccc 309
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310 SpecifierOpt *codec_names;
311 int nb_codec_names;
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312 SpecifierOpt *audio_channels;
313 int nb_audio_channels;
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314 SpecifierOpt *audio_sample_rate;
315 int nb_audio_sample_rate;
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316 SpecifierOpt *frame_rates;
317 int nb_frame_rates;
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318 SpecifierOpt *frame_sizes;
319 int nb_frame_sizes;
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320 SpecifierOpt *frame_pix_fmts;
321 int nb_frame_pix_fmts;
35e6f8c1 322
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323 /* input options */
324 int64_t input_ts_offset;
f4805328 325 int rate_emu;
6b779ccc 326
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327 SpecifierOpt *ts_scale;
328 int nb_ts_scale;
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329 SpecifierOpt *dump_attachment;
330 int nb_dump_attachment;
33f75d72 331
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332 /* output options */
333 StreamMap *stream_maps;
334 int nb_stream_maps;
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335 /* first item specifies output metadata, second is input */
336 MetadataMap (*meta_data_maps)[2];
337 int nb_meta_data_maps;
338 int metadata_global_manual;
339 int metadata_streams_manual;
340 int metadata_chapters_manual;
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341 const char **attachments;
342 int nb_attachments;
6b779ccc 343
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344 int chapters_input_file;
345
6b779ccc 346 int64_t recording_time;
13ccba50 347 uint64_t limit_filesize;
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348 float mux_preload;
349 float mux_max_delay;
039267f1 350
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351 int video_disable;
352 int audio_disable;
353 int subtitle_disable;
354 int data_disable;
355
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356 /* indexed by output file stream index */
357 int *streamid_map;
358 int nb_streamid_map;
359
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360 SpecifierOpt *metadata;
361 int nb_metadata;
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362 SpecifierOpt *max_frames;
363 int nb_max_frames;
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364 SpecifierOpt *bitstream_filters;
365 int nb_bitstream_filters;
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366 SpecifierOpt *codec_tags;
367 int nb_codec_tags;
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368 SpecifierOpt *sample_fmts;
369 int nb_sample_fmts;
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370 SpecifierOpt *qscale;
371 int nb_qscale;
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372 SpecifierOpt *forced_key_frames;
373 int nb_forced_key_frames;
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374 SpecifierOpt *force_fps;
375 int nb_force_fps;
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376 SpecifierOpt *frame_aspect_ratios;
377 int nb_frame_aspect_ratios;
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378 SpecifierOpt *rc_overrides;
379 int nb_rc_overrides;
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380 SpecifierOpt *intra_matrices;
381 int nb_intra_matrices;
382 SpecifierOpt *inter_matrices;
383 int nb_inter_matrices;
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384 SpecifierOpt *top_field_first;
385 int nb_top_field_first;
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386 SpecifierOpt *metadata_map;
387 int nb_metadata_map;
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388 SpecifierOpt *presets;
389 int nb_presets;
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390 SpecifierOpt *copy_initial_nonkeyframes;
391 int nb_copy_initial_nonkeyframes;
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392 SpecifierOpt *filters;
393 int nb_filters;
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394} OptionsContext;
395
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396#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
397{\
398 int i, ret;\
399 for (i = 0; i < o->nb_ ## name; i++) {\
400 char *spec = o->name[i].specifier;\
401 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
402 outvar = o->name[i].u.type;\
403 else if (ret < 0)\
404 exit_program(1);\
405 }\
406}
407
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408static void reset_options(OptionsContext *o)
409{
410 const OptionDef *po = options;
3b266da3 411 int i;
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412
413 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
414 while (po->name) {
415 void *dst = (uint8_t*)o + po->u.off;
416
417 if (po->flags & OPT_SPEC) {
418 SpecifierOpt **so = dst;
419 int i, *count = (int*)(so + 1);
420 for (i = 0; i < *count; i++) {
421 av_freep(&(*so)[i].specifier);
422 if (po->flags & OPT_STRING)
423 av_freep(&(*so)[i].u.str);
424 }
425 av_freep(so);
426 *count = 0;
427 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
428 av_freep(dst);
429 po++;
430 }
431
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432 for (i = 0; i < o->nb_stream_maps; i++)
433 av_freep(&o->stream_maps[i].linklabel);
575ec4e1 434 av_freep(&o->stream_maps);
847529f8 435 av_freep(&o->meta_data_maps);
495ecfd1 436 av_freep(&o->streamid_map);
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437
438 memset(o, 0, sizeof(*o));
6b779ccc 439
dc26318c 440 o->mux_max_delay = 0.7;
6b779ccc 441 o->recording_time = INT64_MAX;
13ccba50 442 o->limit_filesize = UINT64_MAX;
c5bb372e 443 o->chapters_input_file = INT_MAX;
6b779ccc 444
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445 uninit_opts();
446 init_opts();
447}
448
bc1ef855 449static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
64dca32c 450{
64dca32c 451 FrameBuffer *buf = av_mallocz(sizeof(*buf));
3715d841 452 int i, ret;
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453 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
454 int h_chroma_shift, v_chroma_shift;
455 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
456 int w = s->width, h = s->height;
457
458 if (!buf)
459 return AVERROR(ENOMEM);
460
461 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
462 w += 2*edge;
463 h += 2*edge;
464 }
465
466 avcodec_align_dimensions(s, &w, &h);
467 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
468 s->pix_fmt, 32)) < 0) {
469 av_freep(&buf);
470 return ret;
471 }
472 /* XXX this shouldn't be needed, but some tests break without this line
473 * those decoders are buggy and need to be fixed.
474 * the following tests fail:
f320fb89 475 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
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476 */
477 memset(buf->base[0], 128, ret);
478
479 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
3715d841 480 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
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481 const int h_shift = i==0 ? 0 : h_chroma_shift;
482 const int v_shift = i==0 ? 0 : v_chroma_shift;
483 if (s->flags & CODEC_FLAG_EMU_EDGE)
484 buf->data[i] = buf->base[i];
485 else
486 buf->data[i] = buf->base[i] +
487 FFALIGN((buf->linesize[i]*edge >> v_shift) +
488 (pixel_size*edge >> h_shift), 32);
489 }
490 buf->w = s->width;
491 buf->h = s->height;
492 buf->pix_fmt = s->pix_fmt;
493 buf->ist = ist;
494
495 *pbuf = buf;
496 return 0;
497}
498
499static void free_buffer_pool(InputStream *ist)
500{
501 FrameBuffer *buf = ist->buffer_pool;
502 while (buf) {
503 ist->buffer_pool = buf->next;
504 av_freep(&buf->base[0]);
505 av_free(buf);
506 buf = ist->buffer_pool;
507 }
508}
509
510static void unref_buffer(InputStream *ist, FrameBuffer *buf)
511{
512 av_assert0(buf->refcount);
513 buf->refcount--;
514 if (!buf->refcount) {
515 buf->next = ist->buffer_pool;
516 ist->buffer_pool = buf;
517 }
518}
519
520static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
521{
522 InputStream *ist = s->opaque;
523 FrameBuffer *buf;
524 int ret, i;
525
bc1ef855 526 if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
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527 return ret;
528
529 buf = ist->buffer_pool;
530 ist->buffer_pool = buf->next;
531 buf->next = NULL;
532 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
533 av_freep(&buf->base[0]);
534 av_free(buf);
bc1ef855 535 if ((ret = alloc_buffer(ist, s, &buf)) < 0)
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536 return ret;
537 }
538 buf->refcount++;
539
540 frame->opaque = buf;
541 frame->type = FF_BUFFER_TYPE_USER;
542 frame->extended_data = frame->data;
543 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
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544 frame->width = buf->w;
545 frame->height = buf->h;
546 frame->format = buf->pix_fmt;
547 frame->sample_aspect_ratio = s->sample_aspect_ratio;
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548
549 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
550 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
551 frame->data[i] = buf->data[i];
552 frame->linesize[i] = buf->linesize[i];
553 }
554
555 return 0;
556}
557
558static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
559{
560 InputStream *ist = s->opaque;
561 FrameBuffer *buf = frame->opaque;
562 int i;
563
564 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
565 frame->data[i] = NULL;
566
567 unref_buffer(ist, buf);
568}
569
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570static void filter_release_buffer(AVFilterBuffer *fb)
571{
572 FrameBuffer *buf = fb->priv;
573 av_free(fb);
574 unref_buffer(buf->ist, buf);
575}
576
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577/**
578 * Define a function for building a string containing a list of
579 * allowed formats,
580 */
581#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
582static char *choose_ ## var ## s(OutputStream *ost) \
583{ \
584 if (ost->st->codec->var != none) { \
585 get_name(ost->st->codec->var); \
586 return av_strdup(name); \
587 } else if (ost->enc->supported_list) { \
588 const type *p; \
589 AVIOContext *s = NULL; \
590 uint8_t *ret; \
591 int len; \
592 \
593 if (avio_open_dyn_buf(&s) < 0) \
594 exit_program(1); \
595 \
596 for (p = ost->enc->supported_list; *p != none; p++) { \
597 get_name(*p); \
598 avio_printf(s, "%s" separator, name); \
599 } \
600 len = avio_close_dyn_buf(s, &ret); \
601 ret[len - 1] = 0; \
602 return ret; \
603 } else \
604 return NULL; \
605}
606
607#define GET_PIX_FMT_NAME(pix_fmt)\
608 const char *name = av_get_pix_fmt_name(pix_fmt);
609
610DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
611 GET_PIX_FMT_NAME, ":")
612
613#define GET_SAMPLE_FMT_NAME(sample_fmt)\
614 const char *name = av_get_sample_fmt_name(sample_fmt)
615
616DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
617 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
618
619#define GET_SAMPLE_RATE_NAME(rate)\
620 char name[16];\
621 snprintf(name, sizeof(name), "%d", rate);
622
623DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
624 GET_SAMPLE_RATE_NAME, ",")
625
626#define GET_CH_LAYOUT_NAME(ch_layout)\
627 char name[16];\
628 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
629
630DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
631 GET_CH_LAYOUT_NAME, ",")
632
633static int configure_audio_filters(FilterGraph *fg, AVFilterContext **in_filter,
634 AVFilterContext **out_filter)
b7327887 635{
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636 InputStream *ist = fg->inputs[0]->ist;
637 OutputStream *ost = fg->outputs[0]->ost;
638 AVCodecContext *codec = ost->st->codec;
639 AVCodecContext *icodec = ist->st->codec;
640 char *sample_fmts, *sample_rates, *channel_layouts;
641 char args[256];
642 int ret;
643
644 avfilter_graph_free(&fg->graph);
645 if (!(fg->graph = avfilter_graph_alloc()))
646 return AVERROR(ENOMEM);
647
648 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:"
649 "channel_layout=0x%"PRIx64, ist->st->time_base.num,
650 ist->st->time_base.den, icodec->sample_rate,
651 av_get_sample_fmt_name(icodec->sample_fmt), icodec->channel_layout);
652 ret = avfilter_graph_create_filter(&fg->inputs[0]->filter,
653 avfilter_get_by_name("abuffer"),
654 "src", args, NULL, fg->graph);
655 if (ret < 0)
656 return ret;
ac712309 657
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658 ret = avfilter_graph_create_filter(&fg->outputs[0]->filter,
659 avfilter_get_by_name("abuffersink"),
660 "out", NULL, NULL, fg->graph);
661 if (ret < 0)
ac712309 662 return ret;
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663
664 *in_filter = fg->inputs[0]->filter;
665 *out_filter = fg->outputs[0]->filter;
666
667 if (codec->channels && !codec->channel_layout)
668 codec->channel_layout = av_get_default_channel_layout(codec->channels);
669
670 sample_fmts = choose_sample_fmts(ost);
671 sample_rates = choose_sample_rates(ost);
672 channel_layouts = choose_channel_layouts(ost);
673 if (sample_fmts || sample_rates || channel_layouts) {
674 AVFilterContext *format;
675 char args[256];
676 int len = 0;
677
678 if (sample_fmts)
679 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
680 sample_fmts);
681 if (sample_rates)
682 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
683 sample_rates);
684 if (channel_layouts)
685 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
686 channel_layouts);
687 args[len - 1] = 0;
688
689 av_freep(&sample_fmts);
690 av_freep(&sample_rates);
691 av_freep(&channel_layouts);
692
693 ret = avfilter_graph_create_filter(&format,
694 avfilter_get_by_name("aformat"),
695 "aformat", args, NULL, fg->graph);
696 if (ret < 0)
697 return ret;
698
699 ret = avfilter_link(format, 0, fg->outputs[0]->filter, 0);
700 if (ret < 0)
701 return ret;
702
703 *out_filter = format;
704 }
705
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706 if (audio_sync_method > 0) {
707 AVFilterContext *async;
708 char args[256];
709 int len = 0;
710
711 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
712 "asyncts audio filter instead.\n");
713
714 if (audio_sync_method > 1)
715 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
716 "max_comp=%d:", audio_sync_method);
717 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
718 audio_drift_threshold);
719
720 ret = avfilter_graph_create_filter(&async,
721 avfilter_get_by_name("asyncts"),
722 "async", args, NULL, fg->graph);
723 if (ret < 0)
724 return ret;
725
726 ret = avfilter_link(*in_filter, 0, async, 0);
727 if (ret < 0)
728 return ret;
729
730 *in_filter = async;
731 }
732
369cb092 733 return 0;
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734}
735
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736static int configure_video_filters(FilterGraph *fg, AVFilterContext **in_filter,
737 AVFilterContext **out_filter)
6291d7e4 738{
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739 InputStream *ist = fg->inputs[0]->ist;
740 OutputStream *ost = fg->outputs[0]->ost;
369cb092 741 AVFilterContext *filter;
6291d7e4 742 AVCodecContext *codec = ost->st->codec;
ac712309 743 char *pix_fmts;
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744 AVRational sample_aspect_ratio;
745 char args[255];
746 int ret;
747
7636c8c6 748 if (ist->st->sample_aspect_ratio.num) {
6291d7e4 749 sample_aspect_ratio = ist->st->sample_aspect_ratio;
7636c8c6 750 } else
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751 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
752
753 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
754 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
755 sample_aspect_ratio.num, sample_aspect_ratio.den);
756
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757 ret = avfilter_graph_create_filter(&fg->inputs[0]->filter,
758 avfilter_get_by_name("buffer"),
759 "src", args, NULL, fg->graph);
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760 if (ret < 0)
761 return ret;
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762 ret = avfilter_graph_create_filter(&fg->outputs[0]->filter,
763 avfilter_get_by_name("buffersink"),
764 "out", NULL, NULL, fg->graph);
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765 if (ret < 0)
766 return ret;
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767 *in_filter = fg->inputs[0]->filter;
768 *out_filter = fg->outputs[0]->filter;
6291d7e4 769
6c9eac19 770 if (codec->width || codec->height) {
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771 snprintf(args, 255, "%d:%d:flags=0x%X",
772 codec->width,
773 codec->height,
3b3ea346 774 (unsigned)ost->sws_flags);
6291d7e4 775 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
560f7774 776 NULL, args, NULL, fg->graph)) < 0)
6291d7e4 777 return ret;
369cb092 778 if ((ret = avfilter_link(*in_filter, 0, filter, 0)) < 0)
6291d7e4 779 return ret;
369cb092 780 *in_filter = filter;
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781 }
782
369cb092 783 if ((pix_fmts = choose_pix_fmts(ost))) {
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784 if ((ret = avfilter_graph_create_filter(&filter,
785 avfilter_get_by_name("format"),
786 "format", pix_fmts, NULL,
787 fg->graph)) < 0)
788 return ret;
369cb092 789 if ((ret = avfilter_link(filter, 0, *out_filter, 0)) < 0)
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790 return ret;
791
369cb092 792 *out_filter = filter;
ac712309 793 av_freep(&pix_fmts);
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794 }
795
3b3ea346 796 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
560f7774 797 fg->graph->scale_sws_opts = av_strdup(args);
6291d7e4 798
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799 return 0;
800}
801
802static int configure_simple_filtergraph(FilterGraph *fg)
803{
804 OutputStream *ost = fg->outputs[0]->ost;
805 AVFilterContext *in_filter, *out_filter;
806 int ret;
807
808 avfilter_graph_free(&fg->graph);
809 fg->graph = avfilter_graph_alloc();
810
811 switch (ost->st->codec->codec_type) {
812 case AVMEDIA_TYPE_VIDEO:
813 ret = configure_video_filters(fg, &in_filter, &out_filter);
814 break;
815 case AVMEDIA_TYPE_AUDIO:
816 ret = configure_audio_filters(fg, &in_filter, &out_filter);
817 break;
818 default: av_assert0(0);
819 }
820 if (ret < 0)
821 return ret;
822
6291d7e4 823 if (ost->avfilter) {
91d3cbe0
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824 AVFilterInOut *outputs = avfilter_inout_alloc();
825 AVFilterInOut *inputs = avfilter_inout_alloc();
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826
827 outputs->name = av_strdup("in");
ac712309 828 outputs->filter_ctx = in_filter;
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829 outputs->pad_idx = 0;
830 outputs->next = NULL;
831
832 inputs->name = av_strdup("out");
ac712309 833 inputs->filter_ctx = out_filter;
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834 inputs->pad_idx = 0;
835 inputs->next = NULL;
836
560f7774 837 if ((ret = avfilter_graph_parse(fg->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
6291d7e4 838 return ret;
6291d7e4 839 } else {
ac712309 840 if ((ret = avfilter_link(in_filter, 0, out_filter, 0)) < 0)
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841 return ret;
842 }
843
560f7774 844 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
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845 return ret;
846
560f7774 847 ost->filter = fg->outputs[0];
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848
849 return 0;
850}
6291d7e4 851
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852static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
853{
854 FilterGraph *fg = av_mallocz(sizeof(*fg));
855
856 if (!fg)
857 exit_program(1);
3b266da3 858 fg->index = nb_filtergraphs;
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859
860 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
861 fg->nb_outputs + 1);
862 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
863 exit_program(1);
864 fg->outputs[0]->ost = ost;
865 fg->outputs[0]->graph = fg;
866
867 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
868 fg->nb_inputs + 1);
869 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
870 exit_program(1);
871 fg->inputs[0]->ist = ist;
872 fg->inputs[0]->graph = fg;
873
874 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
875 &ist->nb_filters, ist->nb_filters + 1);
876 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
877
878 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
879 &nb_filtergraphs, nb_filtergraphs + 1);
880 filtergraphs[nb_filtergraphs - 1] = fg;
881
882 return fg;
883}
884
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885static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
886{
887 InputStream *ist;
888 enum AVMediaType type = in->filter_ctx->input_pads[in->pad_idx].type;
889 int i;
890
891 // TODO: support other filter types
892 if (type != AVMEDIA_TYPE_VIDEO) {
893 av_log(NULL, AV_LOG_FATAL, "Only video filters supported currently.\n");
894 exit_program(1);
895 }
896
897 if (in->name) {
898 AVFormatContext *s;
899 AVStream *st = NULL;
900 char *p;
901 int file_idx = strtol(in->name, &p, 0);
902
1381081c 903 if (file_idx < 0 || file_idx >= nb_input_files) {
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904 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
905 file_idx, fg->graph_desc);
906 exit_program(1);
907 }
908 s = input_files[file_idx]->ctx;
909
910 for (i = 0; i < s->nb_streams; i++) {
911 if (s->streams[i]->codec->codec_type != type)
912 continue;
913 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
914 st = s->streams[i];
915 break;
916 }
917 }
918 if (!st) {
919 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
920 "matches no streams.\n", p, fg->graph_desc);
921 exit_program(1);
922 }
923 ist = input_streams[input_files[file_idx]->ist_index + st->index];
924 } else {
925 /* find the first unused stream of corresponding type */
926 for (i = 0; i < nb_input_streams; i++) {
927 ist = input_streams[i];
928 if (ist->st->codec->codec_type == type && ist->discard)
929 break;
930 }
931 if (i == nb_input_streams) {
932 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
933 "unlabeled input pad %d on filter %s", in->pad_idx,
934 in->filter_ctx->name);
935 exit_program(1);
936 }
937 }
938 ist->discard = 0;
939 ist->decoding_needed = 1;
940 ist->st->discard = AVDISCARD_NONE;
941
942 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
943 &fg->nb_inputs, fg->nb_inputs + 1);
944 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
945 exit_program(1);
946 fg->inputs[fg->nb_inputs - 1]->ist = ist;
947 fg->inputs[fg->nb_inputs - 1]->graph = fg;
948
949 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
950 &ist->nb_filters, ist->nb_filters + 1);
951 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
952}
953
954static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
955{
ac712309 956 char *pix_fmts;
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957 AVCodecContext *codec = ofilter->ost->st->codec;
958 AVFilterContext *last_filter = out->filter_ctx;
959 int pad_idx = out->pad_idx;
960 int ret;
961
3b266da3 962
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963 ret = avfilter_graph_create_filter(&ofilter->filter,
964 avfilter_get_by_name("buffersink"),
965 "out", NULL, pix_fmts, fg->graph);
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966 if (ret < 0)
967 return ret;
968
969 if (codec->width || codec->height) {
970 char args[255];
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971 AVFilterContext *filter;
972
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973 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
974 codec->width,
975 codec->height,
976 (unsigned)ofilter->ost->sws_flags);
ac712309 977 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
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978 NULL, args, NULL, fg->graph)) < 0)
979 return ret;
ac712309 980 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
3b266da3 981 return ret;
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982
983 last_filter = filter;
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984 pad_idx = 0;
985 }
986
369cb092 987 if ((pix_fmts = choose_pix_fmts(ofilter->ost))) {
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988 AVFilterContext *filter;
989 if ((ret = avfilter_graph_create_filter(&filter,
990 avfilter_get_by_name("format"),
991 "format", pix_fmts, NULL,
992 fg->graph)) < 0)
993 return ret;
994 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
995 return ret;
996
997 last_filter = filter;
998 pad_idx = 0;
999 av_freep(&pix_fmts);
1000 }
1001
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1002 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
1003 return ret;
1004
1005 return 0;
1006}
1007
1008static int configure_complex_filter(FilterGraph *fg)
1009{
1010 AVFilterInOut *inputs, *outputs, *cur;
1011 int ret, i, init = !fg->graph;
1012
1013 avfilter_graph_free(&fg->graph);
1014 if (!(fg->graph = avfilter_graph_alloc()))
1015 return AVERROR(ENOMEM);
1016
1017 if ((ret = avfilter_graph_parse2(fg->graph, fg->graph_desc, &inputs, &outputs)) < 0)
1018 return ret;
1019
1020 for (cur = inputs; init && cur; cur = cur->next)
1021 init_input_filter(fg, cur);
1022
1023 for (cur = inputs, i = 0; cur; cur = cur->next, i++) {
1024 InputFilter *ifilter = fg->inputs[i];
1025 InputStream *ist = ifilter->ist;
1026 AVRational sar;
1027 char args[255];
1028
1029 sar = ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1030 ist->st->codec->sample_aspect_ratio;
1031 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
1032 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
1033 sar.num, sar.den);
1034
1035 if ((ret = avfilter_graph_create_filter(&ifilter->filter,
1036 avfilter_get_by_name("buffer"), cur->name,
1037 args, NULL, fg->graph)) < 0)
1038 return ret;
1039 if ((ret = avfilter_link(ifilter->filter, 0,
1040 cur->filter_ctx, cur->pad_idx)) < 0)
1041 return ret;
1042 }
1043 avfilter_inout_free(&inputs);
1044
1045 if (!init) {
1046 /* we already know the mappings between lavfi outputs and output streams,
1047 * so we can finish the setup */
1048 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1049 configure_output_filter(fg, fg->outputs[i], cur);
1050 avfilter_inout_free(&outputs);
1051
1052 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1053 return ret;
1054 } else {
1055 /* wait until output mappings are processed */
1056 for (cur = outputs; cur;) {
1057 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
1058 &fg->nb_outputs, fg->nb_outputs + 1);
1059 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
1060 exit_program(1);
1061 fg->outputs[fg->nb_outputs - 1]->graph = fg;
1062 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
1063 cur = cur->next;
1064 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
1065 }
1066 }
1067
1068 return 0;
1069}
1070
1071static int configure_complex_filters(void)
1072{
1073 int i, ret = 0;
1074
1075 for (i = 0; i < nb_filtergraphs; i++)
1076 if (!filtergraphs[i]->graph &&
1077 (ret = configure_complex_filter(filtergraphs[i])) < 0)
1078 return ret;
1079 return 0;
1080}
1081
1082static int configure_filtergraph(FilterGraph *fg)
1083{
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1084 return fg->graph_desc ? configure_complex_filter(fg) :
1085 configure_simple_filtergraph(fg);
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1086}
1087
1088static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
1089{
1090 int i;
1091 for (i = 0; i < fg->nb_inputs; i++)
1092 if (fg->inputs[i]->ist == ist)
1093 return 1;
1094 return 0;
1095}
1096
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1097static void term_exit(void)
1098{
1099 av_log(NULL, AV_LOG_QUIET, "");
1100}
1101
1102static volatile int received_sigterm = 0;
1103static volatile int received_nb_signals = 0;
1104
1105static void
1106sigterm_handler(int sig)
1107{
1108 received_sigterm = sig;
1109 received_nb_signals++;
1110 term_exit();
1111}
1112
1113static void term_init(void)
1114{
7636c8c6 1115 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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1116 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1117#ifdef SIGXCPU
1118 signal(SIGXCPU, sigterm_handler);
1119#endif
1120}
1121
2abe947a 1122static int decode_interrupt_cb(void *ctx)
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1123{
1124 return received_nb_signals > 1;
1125}
1126
2abe947a
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1127static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1128
dad09ff9 1129void exit_program(int ret)
6291d7e4 1130{
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1131 int i, j;
1132
1133 for (i = 0; i < nb_filtergraphs; i++) {
1134 avfilter_graph_free(&filtergraphs[i]->graph);
1135 for (j = 0; j < filtergraphs[i]->nb_inputs; j++)
1136 av_freep(&filtergraphs[i]->inputs[j]);
1137 av_freep(&filtergraphs[i]->inputs);
1138 for (j = 0; j < filtergraphs[i]->nb_outputs; j++)
1139 av_freep(&filtergraphs[i]->outputs[j]);
1140 av_freep(&filtergraphs[i]->outputs);
1141 av_freep(&filtergraphs[i]);
1142 }
1143 av_freep(&filtergraphs);
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1144
1145 /* close files */
7636c8c6 1146 for (i = 0; i < nb_output_files; i++) {
2e215267 1147 AVFormatContext *s = output_files[i]->ctx;
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1148 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1149 avio_close(s->pb);
1150 avformat_free_context(s);
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1151 av_dict_free(&output_files[i]->opts);
1152 av_freep(&output_files[i]);
6291d7e4 1153 }
1135a071 1154 for (i = 0; i < nb_output_streams; i++) {
2e215267 1155 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
JG
1156 while (bsfc) {
1157 AVBitStreamFilterContext *next = bsfc->next;
1158 av_bitstream_filter_close(bsfc);
1159 bsfc = next;
1160 }
2e215267 1161 output_streams[i]->bitstream_filters = NULL;
ac646076 1162
2e215267 1163 av_freep(&output_streams[i]->avfilter);
836ce905 1164 av_freep(&output_streams[i]->filtered_frame);
2e215267 1165 av_freep(&output_streams[i]);
1135a071 1166 }
7636c8c6 1167 for (i = 0; i < nb_input_files; i++) {
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1168 avformat_close_input(&input_files[i]->ctx);
1169 av_freep(&input_files[i]);
6291d7e4 1170 }
9179f27c 1171 for (i = 0; i < nb_input_streams; i++) {
2e215267 1172 av_freep(&input_streams[i]->decoded_frame);
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1173 av_dict_free(&input_streams[i]->opts);
1174 free_buffer_pool(input_streams[i]);
560f7774 1175 av_freep(&input_streams[i]->filters);
2e215267 1176 av_freep(&input_streams[i]);
9179f27c 1177 }
6291d7e4 1178
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1179 if (vstats_file)
1180 fclose(vstats_file);
1181 av_free(vstats_filename);
1182
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1183 av_freep(&input_streams);
1184 av_freep(&input_files);
4288e031 1185 av_freep(&output_streams);
af70aa45 1186 av_freep(&output_files);
6291d7e4 1187
6291d7e4 1188 uninit_opts();
6291d7e4 1189
6291d7e4 1190 avfilter_uninit();
776f2bb9 1191 avformat_network_deinit();
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1192
1193 if (received_sigterm) {
e3245b26
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1194 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1195 (int) received_sigterm);
6291d7e4
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1196 exit (255);
1197 }
1198
f75e3d25 1199 exit(ret);
6291d7e4
AK
1200}
1201
1202static void assert_avoptions(AVDictionary *m)
1203{
1204 AVDictionaryEntry *t;
1205 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 1206 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
6291d7e4
AK
1207 exit_program(1);
1208 }
1209}
1210
1211static void assert_codec_experimental(AVCodecContext *c, int encoder)
1212{
1213 const char *codec_string = encoder ? "encoder" : "decoder";
1214 AVCodec *codec;
1215 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1216 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 1217 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
6291d7e4
AK
1218 "results.\nAdd '-strict experimental' if you want to use it.\n",
1219 codec_string, c->codec->name);
1220 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1221 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 1222 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4
AK
1223 codec_string, codec->name);
1224 exit_program(1);
1225 }
1226}
1227
6291d7e4
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1228/**
1229 * Update the requested input sample format based on the output sample format.
1230 * This is currently only used to request float output from decoders which
1231 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1232 * Ideally this will be removed in the future when decoders do not do format
1233 * conversion and only output in their native format.
1234 */
1235static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1236 AVCodecContext *enc)
1237{
1238 /* if sample formats match or a decoder sample format has already been
1239 requested, just return */
1240 if (enc->sample_fmt == dec->sample_fmt ||
1241 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1242 return;
1243
1244 /* if decoder supports more than one output format */
1245 if (dec_codec && dec_codec->sample_fmts &&
1246 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1247 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1248 const enum AVSampleFormat *p;
1249 int min_dec = -1, min_inc = -1;
1250
1251 /* find a matching sample format in the encoder */
1252 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1253 if (*p == enc->sample_fmt) {
1254 dec->request_sample_fmt = *p;
1255 return;
1256 } else if (*p > enc->sample_fmt) {
1257 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1258 } else
1259 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1260 }
1261
1262 /* if none match, provide the one that matches quality closest */
1263 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1264 enc->sample_fmt - min_dec;
1265 }
1266}
1267
6291d7e4 1268static double
6e983902 1269get_sync_ipts(const OutputStream *ost, int64_t pts)
6291d7e4 1270{
2e215267 1271 OutputFile *of = output_files[ost->file_index];
6e983902 1272 return (double)(pts - of->start_time) / AV_TIME_BASE;
6291d7e4
AK
1273}
1274
f15f02c2 1275static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 1276{
f15f02c2
AK
1277 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1278 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
1279 int ret;
1280
99932847
AK
1281 /*
1282 * Audio encoders may split the packets -- #frames in != #packets out.
1283 * But there is no reordering, so we can limit the number of output packets
1284 * by simply dropping them here.
1285 * Counting encoded video frames needs to be done separately because of
1286 * reordering, see do_video_out()
1287 */
1288 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
1289 if (ost->frame_number >= ost->max_frames) {
1290 av_free_packet(pkt);
99932847 1291 return;
c9594fe0 1292 }
99932847
AK
1293 ost->frame_number++;
1294 }
1295
7636c8c6
AD
1296 while (bsfc) {
1297 AVPacket new_pkt = *pkt;
1298 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1299 &new_pkt.data, &new_pkt.size,
1300 pkt->data, pkt->size,
1301 pkt->flags & AV_PKT_FLAG_KEY);
1302 if (a > 0) {
6291d7e4 1303 av_free_packet(pkt);
7636c8c6
AD
1304 new_pkt.destruct = av_destruct_packet;
1305 } else if (a < 0) {
e3245b26
AK
1306 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1307 bsfc->filter->name, pkt->stream_index,
1308 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
1309 print_error("", a);
1310 if (exit_on_error)
1311 exit_program(1);
1312 }
7636c8c6 1313 *pkt = new_pkt;
6291d7e4 1314
7636c8c6 1315 bsfc = bsfc->next;
6291d7e4
AK
1316 }
1317
61a09968 1318 pkt->stream_index = ost->index;
7636c8c6
AD
1319 ret = av_interleaved_write_frame(s, pkt);
1320 if (ret < 0) {
6291d7e4
AK
1321 print_error("av_interleaved_write_frame()", ret);
1322 exit_program(1);
1323 }
1324}
1325
1270e12e
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1326static int check_recording_time(OutputStream *ost)
1327{
2e215267 1328 OutputFile *of = output_files[ost->file_index];
1270e12e
AK
1329
1330 if (of->recording_time != INT64_MAX &&
1331 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1332 AV_TIME_BASE_Q) >= 0) {
1333 ost->is_past_recording_time = 1;
1334 return 0;
1335 }
1336 return 1;
1337}
1338
369cb092
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1339static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1340 AVFrame *frame)
ee458cb1
JR
1341{
1342 AVCodecContext *enc = ost->st->codec;
ee458cb1 1343 AVPacket pkt;
369cb092 1344 int got_packet = 0;
ee458cb1
JR
1345
1346 av_init_packet(&pkt);
1347 pkt.data = NULL;
1348 pkt.size = 0;
1349
369cb092
AK
1350 if (!check_recording_time(ost))
1351 return;
1270e12e 1352
369cb092 1353 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 1354 frame->pts = ost->sync_opts;
369cb092 1355 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 1356
ee458cb1
JR
1357 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1358 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1359 exit_program(1);
1360 }
1361
1362 if (got_packet) {
ee458cb1
JR
1363 if (pkt.pts != AV_NOPTS_VALUE)
1364 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
1365 if (pkt.dts != AV_NOPTS_VALUE)
1366 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
1367 if (pkt.duration > 0)
1368 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1369
1370 write_frame(s, &pkt, ost);
1371
1372 audio_size += pkt.size;
1373 }
6291d7e4
AK
1374}
1375
1376static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1377{
1378 AVCodecContext *dec;
1379 AVPicture *picture2;
1380 AVPicture picture_tmp;
1381 uint8_t *buf = 0;
1382
1383 dec = ist->st->codec;
1384
1385 /* deinterlace : must be done before any resize */
1386 if (do_deinterlace) {
1387 int size;
1388
1389 /* create temporary picture */
1390 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1391 buf = av_malloc(size);
6291d7e4
AK
1392 if (!buf)
1393 return;
1394
1395 picture2 = &picture_tmp;
1396 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1397
7636c8c6 1398 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1399 dec->pix_fmt, dec->width, dec->height) < 0) {
1400 /* if error, do not deinterlace */
e3245b26 1401 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1402 av_free(buf);
1403 buf = NULL;
1404 picture2 = picture;
1405 }
1406 } else {
1407 picture2 = picture;
1408 }
1409
1410 if (picture != picture2)
1411 *picture = *picture2;
1412 *bufp = buf;
1413}
1414
6291d7e4
AK
1415static void do_subtitle_out(AVFormatContext *s,
1416 OutputStream *ost,
1417 InputStream *ist,
1418 AVSubtitle *sub,
1419 int64_t pts)
1420{
1421 static uint8_t *subtitle_out = NULL;
1422 int subtitle_out_max_size = 1024 * 1024;
1423 int subtitle_out_size, nb, i;
1424 AVCodecContext *enc;
1425 AVPacket pkt;
1426
1427 if (pts == AV_NOPTS_VALUE) {
e3245b26 1428 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1429 if (exit_on_error)
1430 exit_program(1);
1431 return;
1432 }
1433
1434 enc = ost->st->codec;
1435
1436 if (!subtitle_out) {
1437 subtitle_out = av_malloc(subtitle_out_max_size);
1438 }
1439
1440 /* Note: DVB subtitle need one packet to draw them and one other
1441 packet to clear them */
1442 /* XXX: signal it in the codec context ? */
1443 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1444 nb = 2;
1445 else
1446 nb = 1;
1447
7636c8c6 1448 for (i = 0; i < nb; i++) {
1270e12e
AK
1449 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1450 if (!check_recording_time(ost))
1451 return;
1452
6291d7e4
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1453 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1454 // start_display_time is required to be 0
7636c8c6
AD
1455 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1456 sub->end_display_time -= sub->start_display_time;
6291d7e4
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1457 sub->start_display_time = 0;
1458 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1459 subtitle_out_max_size, sub);
1460 if (subtitle_out_size < 0) {
e3245b26 1461 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1462 exit_program(1);
1463 }
1464
1465 av_init_packet(&pkt);
6291d7e4
AK
1466 pkt.data = subtitle_out;
1467 pkt.size = subtitle_out_size;
7636c8c6 1468 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
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1469 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1470 /* XXX: the pts correction is handled here. Maybe handling
1471 it in the codec would be better */
1472 if (i == 0)
1473 pkt.pts += 90 * sub->start_display_time;
1474 else
1475 pkt.pts += 90 * sub->end_display_time;
1476 }
f15f02c2 1477 write_frame(s, &pkt, ost);
6291d7e4
AK
1478 }
1479}
1480
87ef060c
AC
1481static void do_video_out(AVFormatContext *s,
1482 OutputStream *ost,
87ef060c
AC
1483 AVFrame *in_picture,
1484 int *frame_size, float quality)
1485{
553735f5 1486 int nb_frames, i, ret, format_video_sync;
f593628e 1487 AVCodecContext *enc;
d43040e2 1488 double sync_ipts, delta;
87ef060c
AC
1489
1490 enc = ost->st->codec;
87ef060c 1491
6e983902 1492 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
d43040e2 1493 delta = sync_ipts - ost->sync_opts;
87ef060c
AC
1494
1495 /* by default, we output a single frame */
1496 nb_frames = 1;
1497
1498 *frame_size = 0;
1499
553735f5 1500 format_video_sync = video_sync_method;
e8c04f62
AK
1501 if (format_video_sync == VSYNC_AUTO)
1502 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1503 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
553735f5 1504
d43040e2
AK
1505 switch (format_video_sync) {
1506 case VSYNC_CFR:
7636c8c6 1507 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
d43040e2 1508 if (delta < -1.1)
87ef060c 1509 nb_frames = 0;
d43040e2
AK
1510 else if (delta > 1.1)
1511 nb_frames = lrintf(delta);
1512 break;
1513 case VSYNC_VFR:
1514 if (delta <= -0.6)
1515 nb_frames = 0;
1516 else if (delta > 0.6)
4f150068 1517 ost->sync_opts = lrint(sync_ipts);
d43040e2
AK
1518 break;
1519 case VSYNC_PASSTHROUGH:
4f150068 1520 ost->sync_opts = lrint(sync_ipts);
d43040e2
AK
1521 break;
1522 default:
1523 av_assert0(0);
1524 }
87ef060c 1525
96139b5e 1526 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
d43040e2
AK
1527 if (nb_frames == 0) {
1528 nb_frames_drop++;
1529 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1530 return;
d43040e2
AK
1531 } else if (nb_frames > 1) {
1532 nb_frames_dup += nb_frames - 1;
1533 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1534 }
87ef060c 1535
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AK
1536 if (!ost->frame_number)
1537 ost->first_pts = ost->sync_opts;
1538
6291d7e4 1539 /* duplicates frame if needed */
7636c8c6 1540 for (i = 0; i < nb_frames; i++) {
6291d7e4
AK
1541 AVPacket pkt;
1542 av_init_packet(&pkt);
8e37038a
AK
1543 pkt.data = NULL;
1544 pkt.size = 0;
6291d7e4 1545
1270e12e
AK
1546 if (!check_recording_time(ost))
1547 return;
1548
150ddbc1
MR
1549 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1550 enc->codec->id == CODEC_ID_RAWVIDEO) {
6291d7e4 1551 /* raw pictures are written as AVPicture structure to
bb337b4f 1552 avoid any copies. We support temporarily the older
6291d7e4 1553 method. */
f593628e
AC
1554 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1555 enc->coded_frame->top_field_first = in_picture->top_field_first;
4648fe63 1556 pkt.data = (uint8_t *)in_picture;
7636c8c6
AD
1557 pkt.size = sizeof(AVPicture);
1558 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
6291d7e4
AK
1559 pkt.flags |= AV_PKT_FLAG_KEY;
1560
f15f02c2 1561 write_frame(s, &pkt, ost);
6291d7e4 1562 } else {
8e37038a 1563 int got_packet;
6291d7e4
AK
1564 AVFrame big_picture;
1565
4648fe63 1566 big_picture = *in_picture;
6291d7e4
AK
1567 /* better than nothing: use input picture interlaced
1568 settings */
1569 big_picture.interlaced_frame = in_picture->interlaced_frame;
1570 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
828e0bcb 1571 if (ost->top_field_first == -1)
6291d7e4
AK
1572 big_picture.top_field_first = in_picture->top_field_first;
1573 else
828e0bcb 1574 big_picture.top_field_first = !!ost->top_field_first;
6291d7e4
AK
1575 }
1576
f4ad238c 1577 /* handles same_quant here. This is not correct because it may
6291d7e4
AK
1578 not be a global option */
1579 big_picture.quality = quality;
d242d80e 1580 if (!enc->me_threshold)
6291d7e4 1581 big_picture.pict_type = 0;
7636c8c6 1582 big_picture.pts = ost->sync_opts;
6291d7e4
AK
1583 if (ost->forced_kf_index < ost->forced_kf_count &&
1584 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1585 big_picture.pict_type = AV_PICTURE_TYPE_I;
1586 ost->forced_kf_index++;
1587 }
8e37038a 1588 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
6291d7e4 1589 if (ret < 0) {
e3245b26 1590 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6291d7e4
AK
1591 exit_program(1);
1592 }
1593
8e37038a
AK
1594 if (got_packet) {
1595 if (pkt.pts != AV_NOPTS_VALUE)
1596 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1597 if (pkt.dts != AV_NOPTS_VALUE)
1598 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1599
f15f02c2 1600 write_frame(s, &pkt, ost);
39da3b22
AK
1601 *frame_size = pkt.size;
1602 video_size += pkt.size;
324fbadf 1603
6291d7e4
AK
1604 /* if two pass, output log */
1605 if (ost->logfile && enc->stats_out) {
1606 fprintf(ost->logfile, "%s", enc->stats_out);
1607 }
1608 }
1609 }
1610 ost->sync_opts++;
99932847
AK
1611 /*
1612 * For video, number of frames in == number of packets out.
1613 * But there may be reordering, so we can't throw away frames on encoder
1614 * flush, we need to limit them here, before they go into encoder.
1615 */
1616 ost->frame_number++;
6291d7e4
AK
1617 }
1618}
1619
7636c8c6
AD
1620static double psnr(double d)
1621{
1622 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1623}
1624
1625static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1626 int frame_size)
1627{
1628 AVCodecContext *enc;
1629 int frame_number;
1630 double ti1, bitrate, avg_bitrate;
1631
1632 /* this is executed just the first time do_video_stats is called */
1633 if (!vstats_file) {
1634 vstats_file = fopen(vstats_filename, "w");
1635 if (!vstats_file) {
1636 perror("fopen");
1637 exit_program(1);
1638 }
1639 }
1640
1641 enc = ost->st->codec;
1642 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1643 frame_number = ost->frame_number;
7636c8c6 1644 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1645 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1646 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1647
1648 fprintf(vstats_file,"f_size= %6d ", frame_size);
1649 /* compute pts value */
1650 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1651 if (ti1 < 0.01)
1652 ti1 = 0.01;
1653
7636c8c6 1654 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1655 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1656 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1657 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1658 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1659 }
1660}
1661
560f7774
AK
1662/* check for new output on any of the filtergraphs */
1663static int poll_filters(void)
1664{
1665 AVFilterBufferRef *picref;
1666 AVFrame *filtered_frame = NULL;
ac712309 1667 int i, frame_size;
560f7774
AK
1668
1669 for (i = 0; i < nb_output_streams; i++) {
1670 OutputStream *ost = output_streams[i];
1671 OutputFile *of = output_files[ost->file_index];
369cb092 1672 int ret = 0;
560f7774
AK
1673
1674 if (!ost->filter || ost->is_past_recording_time)
1675 continue;
1676
1677 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1678 return AVERROR(ENOMEM);
1679 } else
1680 avcodec_get_frame_defaults(ost->filtered_frame);
1681 filtered_frame = ost->filtered_frame;
1682
369cb092
AK
1683 while (ret >= 0) {
1684 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1685 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1686 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1687 ost->st->codec->frame_size);
1688 else
1689 ret = av_buffersink_read(ost->filter->filter, &picref);
1690
1691 if (ret < 0)
1692 break;
1693
ac712309 1694 avfilter_copy_buf_props(filtered_frame, picref);
369cb092
AK
1695 if (ost->enc->type == AVMEDIA_TYPE_VIDEO)
1696 filtered_frame->pts = av_rescale_q(picref->pts,
1697 ost->filter->filter->inputs[0]->time_base,
1698 AV_TIME_BASE_Q);
1699 else if (picref->pts != AV_NOPTS_VALUE)
1700 filtered_frame->pts = av_rescale_q(picref->pts,
1701 ost->filter->filter->inputs[0]->time_base,
1702 ost->st->codec->time_base) -
1703 av_rescale_q(of->start_time,
1704 AV_TIME_BASE_Q,
1705 ost->st->codec->time_base);
560f7774 1706
01e98b1b
AK
1707 if (of->start_time && filtered_frame->pts < of->start_time) {
1708 avfilter_unref_buffer(picref);
1709 continue;
1710 }
560f7774
AK
1711
1712 switch (ost->filter->filter->inputs[0]->type) {
1713 case AVMEDIA_TYPE_VIDEO:
1714 if (!ost->frame_aspect_ratio)
1715 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1716
1717 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1718 same_quant ? ost->last_quality :
1719 ost->st->codec->global_quality);
1720 if (vstats_filename && frame_size)
1721 do_video_stats(of->ctx, ost, frame_size);
1722 break;
369cb092
AK
1723 case AVMEDIA_TYPE_AUDIO:
1724 do_audio_out(of->ctx, ost, filtered_frame);
1725 break;
560f7774 1726 default:
369cb092 1727 // TODO support subtitle filters
560f7774
AK
1728 av_assert0(0);
1729 }
1730
1731 avfilter_unref_buffer(picref);
1732 }
1733 }
1734 return 0;
1735}
1736
ea9367e9 1737static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1738{
1739 char buf[1024];
1740 OutputStream *ost;
1741 AVFormatContext *oc;
1742 int64_t total_size;
1743 AVCodecContext *enc;
1744 int frame_number, vid, i;
1745 double bitrate, ti1, pts;
1746 static int64_t last_time = -1;
1747 static int qp_histogram[52];
1748
3460dd8a
AK
1749 if (!print_stats && !is_last_report)
1750 return;
1751
6291d7e4
AK
1752 if (!is_last_report) {
1753 int64_t cur_time;
1754 /* display the report every 0.5 seconds */
1755 cur_time = av_gettime();
1756 if (last_time == -1) {
1757 last_time = cur_time;
1758 return;
1759 }
1760 if ((cur_time - last_time) < 500000)
1761 return;
1762 last_time = cur_time;
1763 }
1764
1765
2e215267 1766 oc = output_files[0]->ctx;
6291d7e4
AK
1767
1768 total_size = avio_size(oc->pb);
7636c8c6
AD
1769 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1770 total_size = avio_tell(oc->pb);
6291d7e4
AK
1771
1772 buf[0] = '\0';
1773 ti1 = 1e10;
1774 vid = 0;
ea9367e9 1775 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1776 float q = -1;
2e215267 1777 ost = output_streams[i];
6291d7e4 1778 enc = ost->st->codec;
3d813e4c 1779 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1780 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1781 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1782 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1783 }
1784 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1785 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1786
1787 frame_number = ost->frame_number;
1788 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1789 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1790 if (is_last_report)
6291d7e4 1791 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1792 if (qp_hist) {
6291d7e4
AK
1793 int j;
1794 int qp = lrintf(q);
7636c8c6 1795 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1796 qp_histogram[qp]++;
7636c8c6
AD
1797 for (j = 0; j < 32; j++)
1798 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1799 }
7636c8c6 1800 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1801 int j;
7636c8c6
AD
1802 double error, error_sum = 0;
1803 double scale, scale_sum = 0;
1804 char type[3] = { 'Y','U','V' };
6291d7e4 1805 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1806 for (j = 0; j < 3; j++) {
1807 if (is_last_report) {
1808 error = enc->error[j];
1809 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1810 } else {
1811 error = enc->coded_frame->error[j];
1812 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1813 }
7636c8c6
AD
1814 if (j)
1815 scale /= 4;
6291d7e4
AK
1816 error_sum += error;
1817 scale_sum += scale;
7636c8c6 1818 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1819 }
7636c8c6 1820 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1821 }
1822 vid = 1;
1823 }
1824 /* compute min output value */
1825 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1826 if ((pts < ti1) && (pts > 0))
1827 ti1 = pts;
1828 }
1829 if (ti1 < 0.01)
1830 ti1 = 0.01;
1831
e3245b26 1832 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1833
e3245b26 1834 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1835 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1836 (double)total_size / 1024, ti1, bitrate);
1837
e3245b26
AK
1838 if (nb_frames_dup || nb_frames_drop)
1839 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1840 nb_frames_dup, nb_frames_drop);
6291d7e4 1841
f5646a32 1842 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1843
e3245b26 1844 fflush(stderr);
6291d7e4 1845
e3245b26 1846 if (is_last_report) {
6291d7e4 1847 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1848 av_log(NULL, AV_LOG_INFO, "\n");
1849 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1850 video_size / 1024.0,
1851 audio_size / 1024.0,
1852 extra_size / 1024.0,
1853 100.0 * (total_size - raw) / raw
6291d7e4
AK
1854 );
1855 }
1856}
1857
ea9367e9 1858static void flush_encoders(void)
4a4ce2e7
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1859{
1860 int i, ret;
1861
ea9367e9 1862 for (i = 0; i < nb_output_streams; i++) {
2e215267 1863 OutputStream *ost = output_streams[i];
6f1c66d5 1864 AVCodecContext *enc = ost->st->codec;
2e215267 1865 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 1866 int stop_encoding = 0;
6f1c66d5 1867
b62b5cb6 1868 if (!ost->encoding_needed)
6f1c66d5
AK
1869 continue;
1870
7636c8c6 1871 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1872 continue;
150ddbc1 1873 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1874 continue;
1875
7636c8c6 1876 for (;;) {
369cb092
AK
1877 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1878 const char *desc;
1879 int64_t *size;
6f1c66d5
AK
1880
1881 switch (ost->st->codec->codec_type) {
1882 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1883 encode = avcodec_encode_audio2;
1884 desc = "Audio";
1885 size = &audio_size;
6f1c66d5
AK
1886 break;
1887 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1888 encode = avcodec_encode_video2;
1889 desc = "Video";
1890 size = &video_size;
1891 break;
1892 default:
1893 stop_encoding = 1;
1894 }
1895
1896 if (encode) {
1897 AVPacket pkt;
1898 int got_packet;
1899 av_init_packet(&pkt);
1900 pkt.data = NULL;
1901 pkt.size = 0;
1902
1903 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1904 if (ret < 0) {
369cb092 1905 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
6f1c66d5
AK
1906 exit_program(1);
1907 }
369cb092 1908 *size += ret;
6f1c66d5
AK
1909 if (ost->logfile && enc->stats_out) {
1910 fprintf(ost->logfile, "%s", enc->stats_out);
1911 }
8e37038a 1912 if (!got_packet) {
ee458cb1
JR
1913 stop_encoding = 1;
1914 break;
1915 }
8e37038a
AK
1916 if (pkt.pts != AV_NOPTS_VALUE)
1917 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1918 if (pkt.dts != AV_NOPTS_VALUE)
1919 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1920 write_frame(os, &pkt, ost);
4a4ce2e7 1921 }
369cb092 1922
ee458cb1 1923 if (stop_encoding)
6f1c66d5 1924 break;
4a4ce2e7
AK
1925 }
1926 }
1927}
1928
7204ec1a
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1929/*
1930 * Check whether a packet from ist should be written into ost at this time
1931 */
1932static int check_output_constraints(InputStream *ist, OutputStream *ost)
1933{
2e215267
AK
1934 OutputFile *of = output_files[ost->file_index];
1935 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1936
1937 if (ost->source_index != ist_index)
1938 return 0;
1939
23576b3f 1940 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1941 return 0;
1942
7204ec1a
AK
1943 return 1;
1944}
1945
1946static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1947{
2e215267 1948 OutputFile *of = output_files[ost->file_index];
7204ec1a
AK
1949 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1950 AVPacket opkt;
1951
1952 av_init_packet(&opkt);
1953
1954 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1955 !ost->copy_initial_nonkeyframes)
1956 return;
1957
1270e12e 1958 if (of->recording_time != INT64_MAX &&
23576b3f 1959 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
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1960 ost->is_past_recording_time = 1;
1961 return;
1962 }
1963
7204ec1a
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1964 /* force the input stream PTS */
1965 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1966 audio_size += pkt->size;
1967 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1968 video_size += pkt->size;
1969 ost->sync_opts++;
1970 }
1971
7204ec1a
AK
1972 if (pkt->pts != AV_NOPTS_VALUE)
1973 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1974 else
1975 opkt.pts = AV_NOPTS_VALUE;
1976
1977 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1978 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1979 else
1980 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1981 opkt.dts -= ost_tb_start_time;
1982
1983 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1984 opkt.flags = pkt->flags;
1985
7636c8c6
AD
1986 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1987 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1988 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1989 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1990 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1991 ) {
1992 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1993 opkt.destruct = av_destruct_packet;
1994 } else {
1995 opkt.data = pkt->data;
1996 opkt.size = pkt->size;
1997 }
1998
f15f02c2 1999 write_frame(of->ctx, &opkt, ost);
7204ec1a 2000 ost->st->codec->frame_number++;
7204ec1a
AK
2001 av_free_packet(&opkt);
2002}
2003
2a651b71
AK
2004static void rate_emu_sleep(InputStream *ist)
2005{
2e215267 2006 if (input_files[ist->file_index]->rate_emu) {
23576b3f 2007 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
2008 int64_t now = av_gettime() - ist->start;
2009 if (pts > now)
2010 usleep(pts - now);
2011 }
2012}
2013
369cb092
AK
2014static int guess_input_channel_layout(InputStream *ist)
2015{
2016 AVCodecContext *dec = ist->st->codec;
2017
2018 if (!dec->channel_layout) {
2019 char layout_name[256];
2020
2021 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2022 if (!dec->channel_layout)
2023 return 0;
2024 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2025 dec->channels, dec->channel_layout);
2026 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2027 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2028 }
2029 return 1;
2030}
2031
ded28ba3
AK
2032static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
2033{
d1241ff3
JR
2034 AVFrame *decoded_frame;
2035 AVCodecContext *avctx = ist->st->codec;
ded28ba3 2036 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 2037 int i, ret, resample_changed;
ded28ba3 2038
9179f27c 2039 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 2040 return AVERROR(ENOMEM);
9179f27c
JR
2041 else
2042 avcodec_get_frame_defaults(ist->decoded_frame);
2043 decoded_frame = ist->decoded_frame;
ded28ba3 2044
d1241ff3
JR
2045 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
2046 if (ret < 0) {
ded28ba3 2047 return ret;
d1241ff3 2048 }
ded28ba3 2049
ded28ba3
AK
2050 if (!*got_output) {
2051 /* no audio frame */
369cb092
AK
2052 if (!pkt->size)
2053 for (i = 0; i < ist->nb_filters; i++)
2054 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 2055 return ret;
ded28ba3
AK
2056 }
2057
d1241ff3
JR
2058 /* if the decoder provides a pts, use it instead of the last packet pts.
2059 the decoder could be delaying output by a packet or more. */
2060 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 2061 ist->next_dts = decoded_frame->pts;
369cb092
AK
2062 else if (pkt->pts != AV_NOPTS_VALUE) {
2063 decoded_frame->pts = pkt->pts;
2064 pkt->pts = AV_NOPTS_VALUE;
2065 }
ded28ba3
AK
2066
2067 // preprocess audio (volume)
2068 if (audio_volume != 256) {
d1241ff3
JR
2069 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
2070 void *samples = decoded_frame->data[0];
2071 switch (avctx->sample_fmt) {
ded28ba3
AK
2072 case AV_SAMPLE_FMT_U8:
2073 {
2074 uint8_t *volp = samples;
2075 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2076 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
2077 *volp++ = av_clip_uint8(v);
2078 }
2079 break;
2080 }
2081 case AV_SAMPLE_FMT_S16:
2082 {
2083 int16_t *volp = samples;
2084 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2085 int v = ((*volp) * audio_volume + 128) >> 8;
2086 *volp++ = av_clip_int16(v);
2087 }
2088 break;
2089 }
2090 case AV_SAMPLE_FMT_S32:
2091 {
2092 int32_t *volp = samples;
2093 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2094 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
2095 *volp++ = av_clipl_int32(v);
2096 }
2097 break;
2098 }
2099 case AV_SAMPLE_FMT_FLT:
2100 {
2101 float *volp = samples;
2102 float scale = audio_volume / 256.f;
2103 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2104 *volp++ *= scale;
2105 }
2106 break;
2107 }
2108 case AV_SAMPLE_FMT_DBL:
2109 {
2110 double *volp = samples;
2111 double scale = audio_volume / 256.;
2112 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2113 *volp++ *= scale;
2114 }
2115 break;
2116 }
2117 default:
2118 av_log(NULL, AV_LOG_FATAL,
2119 "Audio volume adjustment on sample format %s is not supported.\n",
2120 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
2121 exit_program(1);
2122 }
2123 }
2124
2125 rate_emu_sleep(ist);
2126
369cb092
AK
2127 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
2128 ist->resample_channels != avctx->channels ||
2129 ist->resample_channel_layout != decoded_frame->channel_layout ||
2130 ist->resample_sample_rate != decoded_frame->sample_rate;
2131 if (resample_changed) {
2132 char layout1[64], layout2[64];
ded28ba3 2133
369cb092
AK
2134 if (!guess_input_channel_layout(ist)) {
2135 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2136 "layout for Input Stream #%d.%d\n", ist->file_index,
2137 ist->st->index);
2138 exit_program(1);
2139 }
2140 decoded_frame->channel_layout = avctx->channel_layout;
2141
2142 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2143 ist->resample_channel_layout);
2144 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2145 decoded_frame->channel_layout);
2146
2147 av_log(NULL, AV_LOG_INFO,
2148 "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",
2149 ist->file_index, ist->st->index,
2150 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2151 ist->resample_channels, layout1,
2152 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2153 avctx->channels, layout2);
2154
2155 ist->resample_sample_fmt = decoded_frame->format;
2156 ist->resample_sample_rate = decoded_frame->sample_rate;
2157 ist->resample_channel_layout = decoded_frame->channel_layout;
2158 ist->resample_channels = avctx->channels;
2159
2160 for (i = 0; i < nb_filtergraphs; i++)
2161 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2162 configure_filtergraph(filtergraphs[i]) < 0) {
2163 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2164 exit_program(1);
2165 }
ded28ba3 2166 }
110d2af2 2167
369cb092
AK
2168 for (i = 0; i < ist->nb_filters; i++)
2169 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2170
af8ad892 2171 return ret;
ded28ba3
AK
2172}
2173
45d4b66f
AK
2174static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
2175{
560f7774 2176 AVFrame *decoded_frame;
45d4b66f 2177 void *buffer_to_free = NULL;
e77c8662 2178 int i, ret = 0, resample_changed;
45d4b66f 2179 float quality;
45d4b66f 2180
9179f27c 2181 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 2182 return AVERROR(ENOMEM);
9179f27c
JR
2183 else
2184 avcodec_get_frame_defaults(ist->decoded_frame);
2185 decoded_frame = ist->decoded_frame;
45d4b66f 2186 pkt->pts = *pkt_pts;
23576b3f 2187 pkt->dts = ist->last_dts;
45d4b66f
AK
2188 *pkt_pts = AV_NOPTS_VALUE;
2189
2190 ret = avcodec_decode_video2(ist->st->codec,
2191 decoded_frame, got_output, pkt);
2192 if (ret < 0)
9179f27c 2193 return ret;
45d4b66f
AK
2194
2195 quality = same_quant ? decoded_frame->quality : 0;
2196 if (!*got_output) {
2197 /* no picture yet */
89605e4a
AK
2198 if (!pkt->size)
2199 for (i = 0; i < ist->nb_filters; i++)
2200 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
af8ad892 2201 return ret;
45d4b66f 2202 }
b34856a1
AK
2203 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2204 decoded_frame->pkt_dts);
45d4b66f
AK
2205 pkt->size = 0;
2206 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2207
2208 rate_emu_sleep(ist);
2209
695ec04e
AK
2210 if (ist->st->sample_aspect_ratio.num)
2211 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2212
e77c8662
AK
2213 resample_changed = ist->resample_width != decoded_frame->width ||
2214 ist->resample_height != decoded_frame->height ||
2215 ist->resample_pix_fmt != decoded_frame->format;
2216 if (resample_changed) {
2217 av_log(NULL, AV_LOG_INFO,
2218 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2219 ist->file_index, ist->st->index,
2220 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2221 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2222
2223 ist->resample_width = decoded_frame->width;
2224 ist->resample_height = decoded_frame->height;
2225 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 2226
3b266da3
AK
2227 for (i = 0; i < nb_filtergraphs; i++)
2228 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2229 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076
AK
2230 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2231 exit_program(1);
3b266da3
AK
2232 }
2233 }
ac646076 2234
3b266da3 2235 for (i = 0; i < ist->nb_filters; i++) {
560f7774
AK
2236 // XXX what an ugly hack
2237 if (ist->filters[i]->graph->nb_outputs == 1)
2238 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2239
04a14d4d
AK
2240 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2241 FrameBuffer *buf = decoded_frame->opaque;
2242 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2243 decoded_frame->data, decoded_frame->linesize,
2244 AV_PERM_READ | AV_PERM_PRESERVE,
2245 ist->st->codec->width, ist->st->codec->height,
2246 ist->st->codec->pix_fmt);
2247
2248 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
2249 fb->buf->priv = buf;
2250 fb->buf->free = filter_release_buffer;
2251
2252 buf->refcount++;
560f7774 2253 av_buffersrc_buffer(ist->filters[i]->filter, fb);
04a14d4d 2254 } else
720c6b78 2255 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
45d4b66f
AK
2256 }
2257
45d4b66f 2258 av_free(buffer_to_free);
45d4b66f
AK
2259 return ret;
2260}
2261
9595234c
AK
2262static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2263{
2264 AVSubtitle subtitle;
2265 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2266 &subtitle, got_output, pkt);
2267 if (ret < 0)
2268 return ret;
2269 if (!*got_output)
af8ad892 2270 return ret;
9595234c
AK
2271
2272 rate_emu_sleep(ist);
2273
2274 for (i = 0; i < nb_output_streams; i++) {
2e215267 2275 OutputStream *ost = output_streams[i];
9595234c
AK
2276
2277 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2278 continue;
2279
2e215267 2280 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
2281 }
2282
2283 avsubtitle_free(&subtitle);
af8ad892 2284 return ret;
9595234c
AK
2285}
2286
6291d7e4 2287/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 2288static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 2289{
ffa0674e 2290 int i;
6291d7e4 2291 int got_output;
6291d7e4 2292 int64_t pkt_pts = AV_NOPTS_VALUE;
6291d7e4 2293 AVPacket avpkt;
6291d7e4 2294
3101bb66 2295 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2296 ist->next_dts = ist->last_dts;
6291d7e4
AK
2297
2298 if (pkt == NULL) {
2299 /* EOF handling */
2300 av_init_packet(&avpkt);
2301 avpkt.data = NULL;
2302 avpkt.size = 0;
2303 goto handle_eof;
2304 } else {
2305 avpkt = *pkt;
2306 }
2307
7636c8c6 2308 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2309 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
7636c8c6 2310 if (pkt->pts != AV_NOPTS_VALUE)
6291d7e4
AK
2311 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2312
7636c8c6 2313 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2314 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2315 int ret = 0;
6291d7e4 2316 handle_eof:
6291d7e4 2317
23576b3f 2318 ist->last_dts = ist->next_dts;
8b0268a8
AK
2319
2320 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2321 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2322 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2323 ist->showed_multi_packet_warning = 1;
2324 }
6291d7e4 2325
7636c8c6 2326 switch (ist->st->codec->codec_type) {
82963f8f
AK
2327 case AVMEDIA_TYPE_AUDIO:
2328 ret = transcode_audio (ist, &avpkt, &got_output);
2329 break;
2330 case AVMEDIA_TYPE_VIDEO:
2331 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
b34856a1
AK
2332 if (avpkt.duration)
2333 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
722410ad
AK
2334 else if (ist->st->r_frame_rate.num)
2335 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2336 ist->st->r_frame_rate.num},
2337 AV_TIME_BASE_Q);
b34856a1
AK
2338 else if (ist->st->codec->time_base.num != 0) {
2339 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2340 ist->st->codec->ticks_per_frame;
2341 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2342 }
82963f8f
AK
2343 break;
2344 case AVMEDIA_TYPE_SUBTITLE:
2345 ret = transcode_subtitles(ist, &avpkt, &got_output);
2346 break;
78162b4e
AK
2347 default:
2348 return -1;
2349 }
6291d7e4 2350
d3c1d37a
AK
2351 if (ret < 0)
2352 return ret;
aa38cff2
JG
2353 // touch data and size only if not EOF
2354 if (pkt) {
2355 avpkt.data += ret;
2356 avpkt.size -= ret;
2357 }
82963f8f 2358 if (!got_output) {
af8ad892 2359 continue;
82963f8f 2360 }
6291d7e4 2361 }
6291d7e4 2362
7204ec1a 2363 /* handle stream copy */
2a651b71
AK
2364 if (!ist->decoding_needed) {
2365 rate_emu_sleep(ist);
23576b3f 2366 ist->last_dts = ist->next_dts;
2a651b71
AK
2367 switch (ist->st->codec->codec_type) {
2368 case AVMEDIA_TYPE_AUDIO:
3101bb66 2369 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2370 ist->st->codec->sample_rate;
2371 break;
2372 case AVMEDIA_TYPE_VIDEO:
2373 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2374 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2375 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2376 ist->st->codec->time_base.num * ticks) /
2377 ist->st->codec->time_base.den;
2378 }
2379 break;
2380 }
2381 }
ea9367e9 2382 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 2383 OutputStream *ost = output_streams[i];
7204ec1a
AK
2384
2385 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2386 continue;
2387
2388 do_streamcopy(ist, ost, pkt);
2389 }
2390
6291d7e4
AK
2391 return 0;
2392}
2393
ea9367e9 2394static void print_sdp(void)
6291d7e4
AK
2395{
2396 char sdp[2048];
af70aa45 2397 int i;
ea9367e9 2398 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2399
2400 if (!avc)
2401 exit_program(1);
ea9367e9 2402 for (i = 0; i < nb_output_files; i++)
2e215267 2403 avc[i] = output_files[i]->ctx;
6291d7e4 2404
ea9367e9 2405 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2406 printf("SDP:\n%s\n", sdp);
2407 fflush(stdout);
af70aa45 2408 av_freep(&avc);
6291d7e4
AK
2409}
2410
ea9367e9 2411static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2412{
2413 int i;
2e215267 2414 InputStream *ist = input_streams[ist_index];
630902a1
AK
2415 if (ist->decoding_needed) {
2416 AVCodec *codec = ist->dec;
630902a1 2417 if (!codec) {
9a414d89 2418 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2419 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2420 return AVERROR(EINVAL);
2421 }
2422
2423 /* update requested sample format for the decoder based on the
2424 corresponding encoder sample format */
2425 for (i = 0; i < nb_output_streams; i++) {
2e215267 2426 OutputStream *ost = output_streams[i];
630902a1
AK
2427 if (ost->source_index == ist_index) {
2428 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2429 break;
2430 }
2431 }
2432
64dca32c
AK
2433 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2434 ist->st->codec->get_buffer = codec_get_buffer;
2435 ist->st->codec->release_buffer = codec_release_buffer;
2436 ist->st->codec->opaque = ist;
2437 }
2438
2473a45c
JG
2439 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2440 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2441 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2442 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2443 ist->file_index, ist->st->index);
2444 return AVERROR(EINVAL);
2445 }
2446 assert_codec_experimental(ist->st->codec, 0);
2447 assert_avoptions(ist->opts);
2448 }
2449
23576b3f 2450 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 2451 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2452 init_pts_correction(&ist->pts_ctx);
2453 ist->is_start = 1;
2454
2455 return 0;
2456}
2457
3b266da3
AK
2458static InputStream *get_input_stream(OutputStream *ost)
2459{
2460 if (ost->source_index >= 0)
2461 return input_streams[ost->source_index];
2462
2463 if (ost->filter) {
2464 FilterGraph *fg = ost->filter->graph;
2465 int i;
2466
2467 for (i = 0; i < fg->nb_inputs; i++)
2468 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2469 return fg->inputs[i]->ist;
2470 }
2471
2472 return NULL;
2473}
2474
ea9367e9 2475static int transcode_init(void)
6291d7e4 2476{
2c474ddb 2477 int ret = 0, i, j, k;
1bb77e51 2478 AVFormatContext *oc;
6291d7e4 2479 AVCodecContext *codec, *icodec;
4288e031 2480 OutputStream *ost;
6291d7e4
AK
2481 InputStream *ist;
2482 char error[1024];
2483 int want_sdp = 1;
b0c9e8e0 2484
f4805328
AK
2485 /* init framerate emulation */
2486 for (i = 0; i < nb_input_files; i++) {
2e215267 2487 InputFile *ifile = input_files[i];
f4805328
AK
2488 if (ifile->rate_emu)
2489 for (j = 0; j < ifile->nb_streams; j++)
2e215267 2490 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 2491 }
6291d7e4
AK
2492
2493 /* output stream init */
03f30c83 2494 for (i = 0; i < nb_output_files; i++) {
2e215267 2495 oc = output_files[i]->ctx;
1bb77e51
AK
2496 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2497 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2498 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2499 return AVERROR(EINVAL);
6291d7e4 2500 }
6291d7e4
AK
2501 }
2502
3b266da3
AK
2503 /* init complex filtergraphs */
2504 for (i = 0; i < nb_filtergraphs; i++)
2505 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2506 return ret;
2507
6291d7e4 2508 /* for each output stream, we compute the right encoding parameters */
4288e031 2509 for (i = 0; i < nb_output_streams; i++) {
2e215267
AK
2510 ost = output_streams[i];
2511 oc = output_files[ost->file_index]->ctx;
3b266da3 2512 ist = get_input_stream(ost);
6291d7e4 2513
4dbc6cee
AK
2514 if (ost->attachment_filename)
2515 continue;
2516
03f30c83 2517 codec = ost->st->codec;
6291d7e4 2518
3b266da3
AK
2519 if (ist) {
2520 icodec = ist->st->codec;
2521
2522 ost->st->disposition = ist->st->disposition;
2523 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2524 codec->chroma_sample_location = icodec->chroma_sample_location;
2525 }
6291d7e4 2526
3d813e4c 2527 if (ost->stream_copy) {
8c4022ac
AK
2528 uint64_t extra_size;
2529
2530 av_assert0(ist && !ost->filter);
2531
2532 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 2533
e6d2b737 2534 if (extra_size > INT_MAX) {
eaf2d37a 2535 return AVERROR(EINVAL);
e6d2b737 2536 }
6291d7e4
AK
2537
2538 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2539 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2540 codec->codec_type = icodec->codec_type;
2541
03f30c83
AK
2542 if (!codec->codec_tag) {
2543 if (!oc->oformat->codec_tag ||
2544 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2545 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2546 codec->codec_tag = icodec->codec_tag;
2547 }
2548
03f30c83 2549 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2550 codec->rc_max_rate = icodec->rc_max_rate;
2551 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2552 codec->field_order = icodec->field_order;
03f30c83 2553 codec->extradata = av_mallocz(extra_size);
e6d2b737 2554 if (!codec->extradata) {
eaf2d37a 2555 return AVERROR(ENOMEM);
e6d2b737 2556 }
6291d7e4 2557 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2558 codec->extradata_size = icodec->extradata_size;
7bb3e625 2559 if (!copy_tb) {
03f30c83 2560 codec->time_base = icodec->time_base;
6291d7e4
AK
2561 codec->time_base.num *= icodec->ticks_per_frame;
2562 av_reduce(&codec->time_base.num, &codec->time_base.den,
2563 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2564 } else
6291d7e4 2565 codec->time_base = ist->st->time_base;
03f30c83 2566
7636c8c6 2567 switch (codec->codec_type) {
6291d7e4 2568 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2569 if (audio_volume != 256) {
e3245b26 2570 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2571 exit_program(1);
2572 }
03f30c83
AK
2573 codec->channel_layout = icodec->channel_layout;
2574 codec->sample_rate = icodec->sample_rate;
2575 codec->channels = icodec->channels;
2576 codec->frame_size = icodec->frame_size;
6291d7e4 2577 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2578 codec->block_align = icodec->block_align;
6291d7e4
AK
2579 break;
2580 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2581 codec->pix_fmt = icodec->pix_fmt;
2582 codec->width = icodec->width;
2583 codec->height = icodec->height;
2584 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2585 if (!codec->sample_aspect_ratio.num) {
03f30c83 2586 codec->sample_aspect_ratio =
6291d7e4
AK
2587 ost->st->sample_aspect_ratio =
2588 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2589 ist->st->codec->sample_aspect_ratio.num ?
2590 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2591 }
2592 break;
2593 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2594 codec->width = icodec->width;
6291d7e4
AK
2595 codec->height = icodec->height;
2596 break;
2597 case AVMEDIA_TYPE_DATA:
3ccd1580 2598 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2599 break;
2600 default:
2601 abort();
2602 }
2603 } else {
2994913d
AK
2604 if (!ost->enc) {
2605 /* should only happen when a default codec is not present. */
2606 snprintf(error, sizeof(error), "Automatic encoder selection "
2607 "failed for output stream #%d:%d. Default encoder for "
2608 "format %s is probably disabled. Please choose an "
2609 "encoder manually.\n", ost->file_index, ost->index,
2610 oc->oformat->name);
2611 ret = AVERROR(EINVAL);
2612 goto dump_format;
2613 }
03f30c83 2614
3b266da3
AK
2615 if (ist)
2616 ist->decoding_needed = 1;
11fdb7e1 2617 ost->encoding_needed = 1;
03f30c83 2618
369cb092
AK
2619 if (!ost->filter &&
2620 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2621 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
2622 FilterGraph *fg;
2623 fg = init_simple_filtergraph(ist, ost);
369cb092 2624 if (configure_simple_filtergraph(fg)) {
3b266da3
AK
2625 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2626 exit(1);
2627 }
369cb092 2628 }
3b266da3 2629
369cb092
AK
2630 switch (codec->codec_type) {
2631 case AVMEDIA_TYPE_AUDIO:
2632 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2633 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2634 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2635 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2636 codec->time_base = (AVRational){ 1, codec->sample_rate };
2637 break;
2638 case AVMEDIA_TYPE_VIDEO:
832ba44d
AK
2639 /*
2640 * We want CFR output if and only if one of those is true:
2641 * 1) user specified output framerate with -r
2642 * 2) user specified -vsync cfr
2643 * 3) output format is CFR and the user didn't force vsync to
2644 * something else than CFR
2645 *
2646 * in such a case, set ost->frame_rate
2647 */
3b266da3 2648 if (!ost->frame_rate.num && ist &&
832ba44d
AK
2649 (video_sync_method == VSYNC_CFR ||
2650 (video_sync_method == VSYNC_AUTO &&
2651 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2652 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2653 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2654 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2655 ost->frame_rate = ost->enc->supported_framerates[idx];
2656 }
6291d7e4 2657 }
832ba44d
AK
2658 if (ost->frame_rate.num) {
2659 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2660 video_sync_method = VSYNC_CFR;
3b266da3 2661 } else if (ist)
832ba44d 2662 codec->time_base = ist->st->time_base;
3b266da3
AK
2663 else
2664 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 2665
3b266da3
AK
2666 codec->width = ost->filter->filter->inputs[0]->w;
2667 codec->height = ost->filter->filter->inputs[0]->h;
2668 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2669 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2670 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2671 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2672 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 2673
9dced854
AK
2674 if (codec->width != icodec->width ||
2675 codec->height != icodec->height ||
2676 codec->pix_fmt != icodec->pix_fmt) {
b7327887
AK
2677 codec->bits_per_raw_sample = 0;
2678 }
2679
6291d7e4
AK
2680 break;
2681 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2682 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2683 break;
2684 default:
2685 abort();
2686 break;
2687 }
2688 /* two pass mode */
515901fa 2689 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2690 char logfilename[1024];
2691 FILE *f;
2692
2693 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2694 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2695 i);
6e8be949
AK
2696 if (!strcmp(ost->enc->name, "libx264")) {
2697 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2698 } else {
64334ddb
AK
2699 if (codec->flags & CODEC_FLAG_PASS1) {
2700 f = fopen(logfilename, "wb");
2701 if (!f) {
2702 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2703 logfilename, strerror(errno));
2704 exit_program(1);
2705 }
2706 ost->logfile = f;
2707 } else {
2708 char *logbuffer;
2709 size_t logbuffer_size;
2710 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2711 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2712 logfilename);
2713 exit_program(1);
2714 }
2715 codec->stats_in = logbuffer;
6291d7e4 2716 }
6e8be949 2717 }
6291d7e4
AK
2718 }
2719 }
6291d7e4
AK
2720 }
2721
2722 /* open each encoder */
4288e031 2723 for (i = 0; i < nb_output_streams; i++) {
2e215267 2724 ost = output_streams[i];
6291d7e4 2725 if (ost->encoding_needed) {
03f30c83 2726 AVCodec *codec = ost->enc;
3b266da3 2727 AVCodecContext *dec = NULL;
3b266da3
AK
2728
2729 if ((ist = get_input_stream(ost)))
2730 dec = ist->st->codec;
2731 if (dec && dec->subtitle_header) {
6291d7e4
AK
2732 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2733 if (!ost->st->codec->subtitle_header) {
2734 ret = AVERROR(ENOMEM);
2735 goto dump_format;
2736 }
2737 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2738 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2739 }
2473a45c
JG
2740 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2741 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2742 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2743 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
2744 ost->file_index, ost->index);
2745 ret = AVERROR(EINVAL);
2746 goto dump_format;
2747 }
2748 assert_codec_experimental(ost->st->codec, 1);
2749 assert_avoptions(ost->opts);
2750 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2751 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2752 "It takes bits/s as argument, not kbits/s\n");
2753 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2754
2755 if (ost->st->codec->me_threshold)
2e215267 2756 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2757 }
2758 }
2759
630902a1
AK
2760 /* init input streams */
2761 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2762 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2763 goto dump_format;
6291d7e4 2764
2c474ddb
AK
2765 /* discard unused programs */
2766 for (i = 0; i < nb_input_files; i++) {
2e215267 2767 InputFile *ifile = input_files[i];
2c474ddb
AK
2768 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2769 AVProgram *p = ifile->ctx->programs[j];
2770 int discard = AVDISCARD_ALL;
2771
2772 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2773 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2774 discard = AVDISCARD_DEFAULT;
2775 break;
2776 }
2777 p->discard = discard;
2778 }
2779 }
2780
6291d7e4 2781 /* open files and write file headers */
af70aa45 2782 for (i = 0; i < nb_output_files; i++) {
2e215267 2783 oc = output_files[i]->ctx;
1bb77e51 2784 oc->interrupt_callback = int_cb;
2e215267 2785 if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
6291d7e4
AK
2786 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2787 ret = AVERROR(EINVAL);
2788 goto dump_format;
2789 }
2e215267 2790 assert_avoptions(output_files[i]->opts);
1bb77e51 2791 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2792 want_sdp = 0;
2793 }
2794 }
2795
2796 dump_format:
2797 /* dump the file output parameters - cannot be done before in case
2798 of stream copy */
03f30c83 2799 for (i = 0; i < nb_output_files; i++) {
2e215267 2800 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2801 }
2802
2803 /* dump the stream mapping */
e3245b26 2804 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2805 for (i = 0; i < nb_input_streams; i++) {
2806 ist = input_streams[i];
2807
2808 for (j = 0; j < ist->nb_filters; j++) {
2809 AVFilterLink *link = ist->filters[j]->filter->outputs[0];
2810 if (ist->filters[j]->graph->graph_desc) {
2811 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2812 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2813 link->dst->filter->name);
2814 if (link->dst->input_count > 1)
2815 av_log(NULL, AV_LOG_INFO, ":%s", link->dstpad->name);
2816 if (nb_filtergraphs > 1)
2817 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2818 av_log(NULL, AV_LOG_INFO, "\n");
2819 }
2820 }
2821 }
2822
e3245b26 2823 for (i = 0; i < nb_output_streams; i++) {
2e215267 2824 ost = output_streams[i];
4dbc6cee
AK
2825
2826 if (ost->attachment_filename) {
2827 /* an attached file */
2828 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2829 ost->attachment_filename, ost->file_index, ost->index);
2830 continue;
2831 }
3b266da3
AK
2832
2833 if (ost->filter && ost->filter->graph->graph_desc) {
2834 /* output from a complex graph */
2835 AVFilterLink *link = ost->filter->filter->inputs[0];
2836 av_log(NULL, AV_LOG_INFO, " %s", link->src->filter->name);
2837 if (link->src->output_count > 1)
2838 av_log(NULL, AV_LOG_INFO, ":%s", link->srcpad->name);
2839 if (nb_filtergraphs > 1)
2840 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2841
2842 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2843 ost->index, ost->enc ? ost->enc->name : "?");
2844 continue;
2845 }
2846
9a414d89 2847 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2848 input_streams[ost->source_index]->file_index,
2849 input_streams[ost->source_index]->st->index,
e3245b26
AK
2850 ost->file_index,
2851 ost->index);
2e215267 2852 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2853 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2854 ost->sync_ist->file_index,
2855 ost->sync_ist->st->index);
3d813e4c 2856 if (ost->stream_copy)
e3245b26
AK
2857 av_log(NULL, AV_LOG_INFO, " (copy)");
2858 else
2e215267
AK
2859 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2860 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2861 ost->enc ? ost->enc->name : "?");
2862 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2863 }
2864
2865 if (ret) {
e3245b26 2866 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2867 return ret;
6291d7e4
AK
2868 }
2869
2870 if (want_sdp) {
ea9367e9 2871 print_sdp();
6291d7e4
AK
2872 }
2873
eaf2d37a
AC
2874 return 0;
2875}
2876
2877/*
2878 * The following code is the main loop of the file converter
2879 */
ea9367e9 2880static int transcode(void)
eaf2d37a
AC
2881{
2882 int ret, i;
2883 AVFormatContext *is, *os;
2884 OutputStream *ost;
2885 InputStream *ist;
2886 uint8_t *no_packet;
7636c8c6 2887 int no_packet_count = 0;
eaf2d37a
AC
2888 int64_t timer_start;
2889
2890 if (!(no_packet = av_mallocz(nb_input_files)))
2891 exit_program(1);
2892
ea9367e9 2893 ret = transcode_init();
eaf2d37a
AC
2894 if (ret < 0)
2895 goto fail;
2896
e3245b26 2897 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2898 term_init();
2899
2900 timer_start = av_gettime();
2901
7636c8c6 2902 for (; received_sigterm == 0;) {
3b266da3 2903 int file_index, ist_index, past_recording_time = 1;
6291d7e4 2904 AVPacket pkt;
9be3c124 2905 int64_t ipts_min;
6291d7e4 2906
9be3c124 2907 ipts_min = INT64_MAX;
6291d7e4 2908
3b266da3 2909 /* check if there's any stream where output is still needed */
4288e031 2910 for (i = 0; i < nb_output_streams; i++) {
f21f294e 2911 OutputFile *of;
2e215267 2912 ost = output_streams[i];
3b266da3
AK
2913 of = output_files[ost->file_index];
2914 os = output_files[ost->file_index]->ctx;
2915 if (ost->is_past_recording_time ||
f21f294e 2916 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
6291d7e4 2917 continue;
3b266da3
AK
2918 if (ost->frame_number > ost->max_frames) {
2919 int j;
2920 for (j = 0; j < of->ctx->nb_streams; j++)
2921 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2922 continue;
2923 }
2924 past_recording_time = 0;
2925 }
2926 if (past_recording_time)
2927 break;
2928
2929 /* select the stream that we must read now by looking at the
2930 smallest output pts */
2931 file_index = -1;
2932 for (i = 0; i < nb_input_streams; i++) {
2933 int64_t ipts;
2934 ist = input_streams[i];
23576b3f 2935 ipts = ist->last_dts;
3b266da3
AK
2936 if (ist->discard || no_packet[ist->file_index])
2937 continue;
2e215267 2938 if (!input_files[ist->file_index]->eof_reached) {
7636c8c6 2939 if (ipts < ipts_min) {
6291d7e4 2940 ipts_min = ipts;
3b266da3 2941 file_index = ist->file_index;
6291d7e4
AK
2942 }
2943 }
6291d7e4
AK
2944 }
2945 /* if none, if is finished */
2946 if (file_index < 0) {
7636c8c6
AD
2947 if (no_packet_count) {
2948 no_packet_count = 0;
b0c9e8e0 2949 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2950 usleep(10000);
2951 continue;
2952 }
2953 break;
2954 }
2955
6291d7e4 2956 /* read a frame from it and output it in the fifo */
2e215267 2957 is = input_files[file_index]->ctx;
7636c8c6
AD
2958 ret = av_read_frame(is, &pkt);
2959 if (ret == AVERROR(EAGAIN)) {
2960 no_packet[file_index] = 1;
6291d7e4
AK
2961 no_packet_count++;
2962 continue;
2963 }
2964 if (ret < 0) {
2e215267 2965 input_files[file_index]->eof_reached = 1;
9e8aae44
AK
2966
2967 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
2968 ist = input_streams[input_files[file_index]->ist_index + i];
2969 if (ist->decoding_needed)
2970 output_packet(ist, NULL);
2971 }
2972
6291d7e4
AK
2973 if (opt_shortest)
2974 break;
2975 else
2976 continue;
2977 }
2978
7636c8c6 2979 no_packet_count = 0;
b0c9e8e0 2980 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2981
2982 if (do_pkt_dump) {
2983 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2984 is->streams[pkt.stream_index]);
2985 }
2986 /* the following test is needed in case new streams appear
2987 dynamically in stream : we ignore them */
2e215267 2988 if (pkt.stream_index >= input_files[file_index]->nb_streams)
6291d7e4 2989 goto discard_packet;
2e215267
AK
2990 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2991 ist = input_streams[ist_index];
6291d7e4
AK
2992 if (ist->discard)
2993 goto discard_packet;
2994
2995 if (pkt.dts != AV_NOPTS_VALUE)
2e215267 2996 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2997 if (pkt.pts != AV_NOPTS_VALUE)
2e215267 2998 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2999
7636c8c6 3000 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 3001 pkt.pts *= ist->ts_scale;
7636c8c6 3002 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 3003 pkt.dts *= ist->ts_scale;
6291d7e4 3004
7636c8c6 3005 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 3006 // ist->next_dts,
7636c8c6
AD
3007 // pkt.dts, input_files[ist->file_index].ts_offset,
3008 // ist->st->codec->codec_type);
3101bb66 3009 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 3010 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 3011 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 3012 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 3013 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2e215267 3014 input_files[ist->file_index]->ts_offset -= delta;
7636c8c6
AD
3015 av_log(NULL, AV_LOG_DEBUG,
3016 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2e215267 3017 delta, input_files[ist->file_index]->ts_offset);
6291d7e4 3018 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 3019 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
3020 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3021 }
3022 }
3023
7636c8c6 3024 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
560f7774 3025 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
9a414d89 3026 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 3027 ist->file_index, ist->st->index);
6291d7e4
AK
3028 if (exit_on_error)
3029 exit_program(1);
3030 av_free_packet(&pkt);
b9630bcf 3031 continue;
6291d7e4
AK
3032 }
3033
3034 discard_packet:
3035 av_free_packet(&pkt);
3036
3037 /* dump report by using the output first video and audio streams */
ea9367e9 3038 print_report(0, timer_start);
6291d7e4
AK
3039 }
3040
3041 /* at the end of stream, we must flush the decoder buffers */
3042 for (i = 0; i < nb_input_streams; i++) {
2e215267 3043 ist = input_streams[i];
9e8aae44 3044 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 3045 output_packet(ist, NULL);
6291d7e4
AK
3046 }
3047 }
560f7774 3048 poll_filters();
ea9367e9 3049 flush_encoders();
6291d7e4
AK
3050
3051 term_exit();
3052
3053 /* write the trailer if needed and close file */
7636c8c6 3054 for (i = 0; i < nb_output_files; i++) {
2e215267 3055 os = output_files[i]->ctx;
6291d7e4
AK
3056 av_write_trailer(os);
3057 }
3058
3059 /* dump report by using the first video and audio streams */
ea9367e9 3060 print_report(1, timer_start);
6291d7e4
AK
3061
3062 /* close each encoder */
4288e031 3063 for (i = 0; i < nb_output_streams; i++) {
2e215267 3064 ost = output_streams[i];
6291d7e4
AK
3065 if (ost->encoding_needed) {
3066 av_freep(&ost->st->codec->stats_in);
3067 avcodec_close(ost->st->codec);
3068 }
6291d7e4
AK
3069 }
3070
3071 /* close each decoder */
3072 for (i = 0; i < nb_input_streams; i++) {
2e215267 3073 ist = input_streams[i];
6291d7e4
AK
3074 if (ist->decoding_needed) {
3075 avcodec_close(ist->st->codec);
3076 }
3077 }
3078
3079 /* finished ! */
3080 ret = 0;
3081
3082 fail:
b0c9e8e0 3083 av_freep(&no_packet);
6291d7e4 3084
4288e031
AK
3085 if (output_streams) {
3086 for (i = 0; i < nb_output_streams; i++) {
2e215267 3087 ost = output_streams[i];
6291d7e4 3088 if (ost) {
3d813e4c 3089 if (ost->stream_copy)
6291d7e4
AK
3090 av_freep(&ost->st->codec->extradata);
3091 if (ost->logfile) {
3092 fclose(ost->logfile);
3093 ost->logfile = NULL;
3094 }
6291d7e4 3095 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 3096 av_free(ost->forced_kf_pts);
6291d7e4 3097 av_dict_free(&ost->opts);
6291d7e4
AK
3098 }
3099 }
6291d7e4
AK
3100 }
3101 return ret;
3102}
3103
ca46fde7 3104static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
3105{
3106 int x = 0, y = 0;
3107 double ar = 0;
3108 const char *p;
3109 char *end;
3110
3111 p = strchr(arg, ':');
3112 if (p) {
3113 x = strtol(arg, &end, 10);
3114 if (end == p)
7636c8c6 3115 y = strtol(end + 1, &end, 10);
6291d7e4
AK
3116 if (x > 0 && y > 0)
3117 ar = (double)x / (double)y;
3118 } else
3119 ar = strtod(arg, NULL);
3120
3121 if (!ar) {
e3245b26 3122 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 3123 exit_program(1);
6291d7e4 3124 }
ca46fde7 3125 return ar;
6291d7e4
AK
3126}
3127
35e6f8c1 3128static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3129{
35e6f8c1 3130 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
3131}
3132
35e6f8c1 3133static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3134{
35e6f8c1 3135 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
3136}
3137
35e6f8c1 3138static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3139{
35e6f8c1 3140 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
3141}
3142
35e6f8c1 3143static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3144{
35e6f8c1 3145 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
3146}
3147
575ec4e1 3148static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 3149{
8d2e4a7e
AK
3150 StreamMap *m = NULL;
3151 int i, negative = 0, file_idx;
3152 int sync_file_idx = -1, sync_stream_idx;
3153 char *p, *sync;
3154 char *map;
6291d7e4 3155
8d2e4a7e
AK
3156 if (*arg == '-') {
3157 negative = 1;
3158 arg++;
3159 }
3160 map = av_strdup(arg);
6291d7e4 3161
8d2e4a7e
AK
3162 /* parse sync stream first, just pick first matching stream */
3163 if (sync = strchr(map, ',')) {
3164 *sync = 0;
3165 sync_file_idx = strtol(sync + 1, &sync, 0);
3166 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 3167 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
3168 exit_program(1);
3169 }
3170 if (*sync)
3171 sync++;
2e215267
AK
3172 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3173 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3174 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
8d2e4a7e
AK
3175 sync_stream_idx = i;
3176 break;
3177 }
2e215267 3178 if (i == input_files[sync_file_idx]->nb_streams) {
f24facd3 3179 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
3180 "match any streams.\n", arg);
3181 exit_program(1);
3182 }
3183 }
6291d7e4 3184
8d2e4a7e 3185
3b266da3
AK
3186 if (map[0] == '[') {
3187 /* this mapping refers to lavfi output */
3188 const char *c = map + 1;
3189 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3190 &o->nb_stream_maps, o->nb_stream_maps + 1);
3191 m = &o->stream_maps[o->nb_stream_maps - 1];
3192 m->linklabel = av_get_token(&c, "]");
3193 if (!m->linklabel) {
3194 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3195 exit_program(1);
3196 }
3197 } else {
3e901cbc
AK
3198 file_idx = strtol(map, &p, 0);
3199 if (file_idx >= nb_input_files || file_idx < 0) {
3200 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3201 exit_program(1);
8d2e4a7e 3202 }
3e901cbc
AK
3203 if (negative)
3204 /* disable some already defined maps */
3205 for (i = 0; i < o->nb_stream_maps; i++) {
3206 m = &o->stream_maps[i];
3207 if (file_idx == m->file_index &&
3208 check_stream_specifier(input_files[m->file_index]->ctx,
3209 input_files[m->file_index]->ctx->streams[m->stream_index],
3210 *p == ':' ? p + 1 : p) > 0)
3211 m->disabled = 1;
3212 }
3213 else
3214 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3215 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3216 *p == ':' ? p + 1 : p) <= 0)
3217 continue;
3218 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3219 &o->nb_stream_maps, o->nb_stream_maps + 1);
3220 m = &o->stream_maps[o->nb_stream_maps - 1];
3221
3222 m->file_index = file_idx;
3223 m->stream_index = i;
3224
3225 if (sync_file_idx >= 0) {
3226 m->sync_file_index = sync_file_idx;
3227 m->sync_stream_index = sync_stream_idx;
3228 } else {
3229 m->sync_file_index = file_idx;
3230 m->sync_stream_index = i;
3231 }
8d2e4a7e 3232 }
3b266da3 3233 }
8d2e4a7e
AK
3234
3235 if (!m) {
f24facd3 3236 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
3237 exit_program(1);
3238 }
3239
3240 av_freep(&map);
6291d7e4
AK
3241 return 0;
3242}
3243
4dbc6cee
AK
3244static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3245{
3246 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3247 &o->nb_attachments, o->nb_attachments + 1);
3248 o->attachments[o->nb_attachments - 1] = arg;
3249 return 0;
3250}
3251
a7b5e841
AK
3252/**
3253 * Parse a metadata specifier in arg.
3254 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3255 * @param index for type c/p, chapter/program index is written here
3256 * @param stream_spec for type s, the stream specifier is written here
3257 */
3258static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 3259{
039267f1 3260 if (*arg) {
a2a38d96 3261 *type = *arg;
6291d7e4
AK
3262 switch (*arg) {
3263 case 'g':
3264 break;
3265 case 's':
a7b5e841
AK
3266 if (*(++arg) && *arg != ':') {
3267 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3268 exit_program(1);
3269 }
3270 *stream_spec = *arg == ':' ? arg + 1 : "";
3271 break;
6291d7e4
AK
3272 case 'c':
3273 case 'p':
e6e6060c
AK
3274 if (*(++arg) == ':')
3275 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3276 break;
3277 default:
e3245b26 3278 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3279 exit_program(1);
3280 }
3281 } else
3282 *type = 'g';
3283}
3284
a7b5e841 3285static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3286{
a7b5e841
AK
3287 AVDictionary **meta_in = NULL;
3288 AVDictionary **meta_out;
3289 int i, ret = 0;
3290 char type_in, type_out;
3291 const char *istream_spec = NULL, *ostream_spec = NULL;
3292 int idx_in = 0, idx_out = 0;
6291d7e4 3293
a7b5e841
AK
3294 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3295 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3296
a7b5e841 3297 if (type_in == 'g' || type_out == 'g')
847529f8 3298 o->metadata_global_manual = 1;
a7b5e841 3299 if (type_in == 's' || type_out == 's')
847529f8 3300 o->metadata_streams_manual = 1;
a7b5e841 3301 if (type_in == 'c' || type_out == 'c')
847529f8 3302 o->metadata_chapters_manual = 1;
6291d7e4 3303
a7b5e841
AK
3304#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3305 if ((index) < 0 || (index) >= (nb_elems)) {\
3306 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3307 (desc), (index));\
3308 exit_program(1);\
3309 }
3310
3311#define SET_DICT(type, meta, context, index)\
3312 switch (type) {\
3313 case 'g':\
3314 meta = &context->metadata;\
3315 break;\
3316 case 'c':\
3317 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3318 meta = &context->chapters[index]->metadata;\
3319 break;\
3320 case 'p':\
3321 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3322 meta = &context->programs[index]->metadata;\
3323 break;\
3324 }\
3325
3326 SET_DICT(type_in, meta_in, ic, idx_in);
3327 SET_DICT(type_out, meta_out, oc, idx_out);
3328
3329 /* for input streams choose first matching stream */
3330 if (type_in == 's') {
3331 for (i = 0; i < ic->nb_streams; i++) {
3332 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3333 meta_in = &ic->streams[i]->metadata;
3334 break;
3335 } else if (ret < 0)
3336 exit_program(1);
3337 }
3338 if (!meta_in) {
3339 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3340 exit_program(1);
3341 }
3342 }
3343
3344 if (type_out == 's') {
3345 for (i = 0; i < oc->nb_streams; i++) {
3346 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3347 meta_out = &oc->streams[i]->metadata;
3348 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3349 } else if (ret < 0)
3350 exit_program(1);
3351 }
3352 } else
3353 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3354
6291d7e4
AK
3355 return 0;
3356}
3357
1b648c7c 3358static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3359{
3360 const char *codec_string = encoder ? "encoder" : "decoder";
3361 AVCodec *codec;
3362
169f0647
AK
3363 codec = encoder ?
3364 avcodec_find_encoder_by_name(name) :
3365 avcodec_find_decoder_by_name(name);
7636c8c6 3366 if (!codec) {
f24facd3 3367 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3368 exit_program(1);
3369 }
7636c8c6 3370 if (codec->type != type) {
f24facd3 3371 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3372 exit_program(1);
3373 }
1b648c7c 3374 return codec;
169f0647
AK
3375}
3376
1b648c7c 3377static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3378{
169f0647 3379 char *codec_name = NULL;
169f0647 3380
35e6f8c1 3381 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3382 if (codec_name) {
3383 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3384 st->codec->codec_id = codec->id;
3385 return codec;
3386 } else
3387 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3388}
6291d7e4 3389
88867844
AK
3390/**
3391 * Add all the streams from the given input file to the global
3392 * list of input streams.
3393 */
35e6f8c1 3394static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3395{
c88d5319 3396 int i;
88867844
AK
3397
3398 for (i = 0; i < ic->nb_streams; i++) {
3399 AVStream *st = ic->streams[i];
3400 AVCodecContext *dec = st->codec;
2e215267
AK
3401 InputStream *ist = av_mallocz(sizeof(*ist));
3402
3403 if (!ist)
3404 exit_program(1);
88867844 3405
88867844 3406 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2e215267
AK
3407 input_streams[nb_input_streams - 1] = ist;
3408
88867844
AK
3409 ist->st = st;
3410 ist->file_index = nb_input_files;
3411 ist->discard = 1;
13f6917c 3412 st->discard = AVDISCARD_ALL;
88867844
AK
3413 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3414
059fb8c8
AK
3415 ist->ts_scale = 1.0;
3416 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3417
1b648c7c 3418 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3419
3420 switch (dec->codec_type) {
88867844 3421 case AVMEDIA_TYPE_VIDEO:
e77c8662
AK
3422 ist->resample_height = dec->height;
3423 ist->resample_width = dec->width;
3424 ist->resample_pix_fmt = dec->pix_fmt;
3425
88867844 3426 break;
13f6917c 3427 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
3428 guess_input_channel_layout(ist);
3429
3430 ist->resample_sample_fmt = dec->sample_fmt;
3431 ist->resample_sample_rate = dec->sample_rate;
3432 ist->resample_channels = dec->channels;
3433 ist->resample_channel_layout = dec->channel_layout;
3434
3435 break;
88867844 3436 case AVMEDIA_TYPE_DATA:
88867844 3437 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3438 case AVMEDIA_TYPE_ATTACHMENT:
3439 case AVMEDIA_TYPE_UNKNOWN:
3440 break;
3441 default:
3442 abort();
3443 }
3444 }
3445}
3446
a2c0b830
AK
3447static void assert_file_overwrite(const char *filename)
3448{
3449 if (!file_overwrite &&
3450 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3451 av_strstart(filename, "file:", NULL))) {
3452 if (avio_check(filename, 0) == 0) {
3453 if (!using_stdin) {
3454 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3455 fflush(stderr);
3456 if (!read_yesno()) {
3457 fprintf(stderr, "Not overwriting - exiting\n");
3458 exit_program(1);
3459 }
3460 }
3461 else {
3462 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3463 exit_program(1);
3464 }
3465 }
3466 }
3467}
3468
3469static void dump_attachment(AVStream *st, const char *filename)
3470{
3471 int ret;
3472 AVIOContext *out = NULL;
3473 AVDictionaryEntry *e;
3474
3475 if (!st->codec->extradata_size) {
3476 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3477 nb_input_files - 1, st->index);
3478 return;
3479 }
3480 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3481 filename = e->value;
3482 if (!*filename) {
3483 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3484 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3485 exit_program(1);
3486 }
3487
3488 assert_file_overwrite(filename);
3489
2abe947a 3490 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3491 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3492 filename);
3493 exit_program(1);
3494 }
3495
3496 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3497 avio_flush(out);
3498 avio_close(out);
3499}
3500
575ec4e1 3501static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3502{
3503 AVFormatContext *ic;
3504 AVInputFormat *file_iformat = NULL;
88867844 3505 int err, i, ret;
6291d7e4
AK
3506 int64_t timestamp;
3507 uint8_t buf[128];
3508 AVDictionary **opts;
3509 int orig_nb_streams; // number of streams before avformat_find_stream_info
3510
7041bb3b
AK
3511 if (o->format) {
3512 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3513 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3514 exit_program(1);
3515 }
6291d7e4
AK
3516 }
3517
3518 if (!strcmp(filename, "-"))
3519 filename = "pipe:";
3520
3521 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3522 !strcmp(filename, "/dev/stdin");
3523
3524 /* get default parameters from command line */
3525 ic = avformat_alloc_context();
3526 if (!ic) {
3527 print_error(filename, AVERROR(ENOMEM));
3528 exit_program(1);
3529 }
e2469ccf
AK
3530 if (o->nb_audio_sample_rate) {
3531 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3532 av_dict_set(&format_opts, "sample_rate", buf, 0);
3533 }
6a11686d 3534 if (o->nb_audio_channels) {
b1041f80
JR