doc: Improve suggested Emacs settings for our coding style.
[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"
34#include "libavutil/opt.h"
35#include "libavcodec/audioconvert.h"
36#include "libavutil/audioconvert.h"
37#include "libavutil/parseutils.h"
38#include "libavutil/samplefmt.h"
39#include "libavutil/colorspace.h"
40#include "libavutil/fifo.h"
41#include "libavutil/intreadwrite.h"
42#include "libavutil/dict.h"
43#include "libavutil/mathematics.h"
44#include "libavutil/pixdesc.h"
45#include "libavutil/avstring.h"
46#include "libavutil/libm.h"
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"
6291d7e4 53# include "libavfilter/vsrc_buffer.h"
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54
55#if HAVE_SYS_RESOURCE_H
56#include <sys/types.h>
57#include <sys/time.h>
58#include <sys/resource.h>
59#elif HAVE_GETPROCESSTIMES
60#include <windows.h>
61#endif
62#if HAVE_GETPROCESSMEMORYINFO
63#include <windows.h>
64#include <psapi.h>
65#endif
66
67#if HAVE_SYS_SELECT_H
68#include <sys/select.h>
69#endif
70
71#include <time.h>
72
73#include "cmdutils.h"
74
75#include "libavutil/avassert.h"
76
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77#define VSYNC_AUTO -1
78#define VSYNC_PASSTHROUGH 0
79#define VSYNC_CFR 1
80#define VSYNC_VFR 2
81
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82const char program_name[] = "avconv";
83const int program_birth_year = 2000;
84
85/* select an input stream for an output stream */
86typedef struct StreamMap {
8d2e4a7e 87 int disabled; /** 1 is this mapping is disabled by a negative map */
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88 int file_index;
89 int stream_index;
90 int sync_file_index;
91 int sync_stream_index;
92} StreamMap;
93
94/**
95 * select an input file for an output file
96 */
97typedef struct MetadataMap {
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98 int file; ///< file index
99 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
100 int index; ///< stream/chapter/program number
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101} MetadataMap;
102
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103static const OptionDef options[];
104
6291d7e4 105static int video_discard = 0;
f4ad238c 106static int same_quant = 0;
6291d7e4 107static int do_deinterlace = 0;
6291d7e4 108static int intra_dc_precision = 8;
6291d7e4 109static int qp_hist = 0;
6291d7e4 110
6291d7e4 111static int file_overwrite = 0;
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112static int do_benchmark = 0;
113static int do_hex_dump = 0;
114static int do_pkt_dump = 0;
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115static int do_pass = 0;
116static char *pass_logfilename_prefix = NULL;
e8c04f62 117static int video_sync_method = VSYNC_AUTO;
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118static int audio_sync_method = 0;
119static float audio_drift_threshold = 0.1;
120static int copy_ts = 0;
7bb3e625 121static int copy_tb = 1;
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122static int opt_shortest = 0;
123static char *vstats_filename;
124static FILE *vstats_file;
6291d7e4 125
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126static int audio_volume = 256;
127
128static int exit_on_error = 0;
129static int using_stdin = 0;
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130static int64_t video_size = 0;
131static int64_t audio_size = 0;
132static int64_t extra_size = 0;
133static int nb_frames_dup = 0;
134static int nb_frames_drop = 0;
135static int input_sync;
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136
137static float dts_delta_threshold = 10;
138
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139static int print_stats = 1;
140
6291d7e4 141static uint8_t *audio_buf;
ee458cb1 142static unsigned int allocated_audio_buf_size;
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143static uint8_t *async_buf;
144static unsigned int allocated_async_buf_size;
6291d7e4 145
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146#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
147
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148typedef struct FrameBuffer {
149 uint8_t *base[4];
150 uint8_t *data[4];
151 int linesize[4];
152
153 int h, w;
154 enum PixelFormat pix_fmt;
155
156 int refcount;
157 struct InputStream *ist;
158 struct FrameBuffer *next;
159} FrameBuffer;
160
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161typedef struct InputStream {
162 int file_index;
163 AVStream *st;
164 int discard; /* true if stream data should be discarded */
165 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
166 AVCodec *dec;
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167 AVFrame *decoded_frame;
168 AVFrame *filtered_frame;
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169
170 int64_t start; /* time when read started */
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171 /* predicted dts of the next packet read for this stream or (when there are
172 * several frames in a packet) of the next frame in current packet */
173 int64_t next_dts;
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174 /* dts of the last packet read for this stream */
175 int64_t last_dts;
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176 PtsCorrectionContext pts_ctx;
177 double ts_scale;
178 int is_start; /* is 1 at the start and after a discontinuity */
179 int showed_multi_packet_warning;
180 AVDictionary *opts;
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181
182 /* a pool of free buffers for decoded data */
183 FrameBuffer *buffer_pool;
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184} InputStream;
185
186typedef struct InputFile {
187 AVFormatContext *ctx;
188 int eof_reached; /* true if eof reached */
189 int ist_index; /* index of first stream in ist_table */
190 int buffer_size; /* current total buffer size */
191 int64_t ts_offset;
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192 int nb_streams; /* number of stream that avconv is aware of; may be different
193 from ctx.nb_streams if new streams appear during av_read_frame() */
f4805328 194 int rate_emu;
6494c001 195} InputFile;
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196
197typedef struct OutputStream {
198 int file_index; /* file index */
199 int index; /* stream index in the output file */
200 int source_index; /* InputStream index */
201 AVStream *st; /* stream in the output file */
202 int encoding_needed; /* true if encoding needed for this stream */
203 int frame_number;
204 /* input pts and corresponding output pts
205 for A/V sync */
7636c8c6 206 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
6291d7e4 207 struct InputStream *sync_ist; /* input stream to sync against */
7636c8c6 208 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
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209 /* pts of the first frame encoded for this stream, used for limiting
210 * recording time */
211 int64_t first_pts;
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212 AVBitStreamFilterContext *bitstream_filters;
213 AVCodec *enc;
96139b5e 214 int64_t max_frames;
ee458cb1 215 AVFrame *output_frame;
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216
217 /* video only */
218 int video_resample;
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219 int resample_height;
220 int resample_width;
221 int resample_pix_fmt;
222 AVRational frame_rate;
bef737a7 223 int force_fps;
828e0bcb 224 int top_field_first;
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225
226 float frame_aspect_ratio;
227
228 /* forced key frames */
229 int64_t *forced_kf_pts;
230 int forced_kf_count;
231 int forced_kf_index;
232
233 /* audio only */
234 int audio_resample;
235 ReSampleContext *resample; /* for audio resampling */
236 int resample_sample_fmt;
237 int resample_channels;
238 int resample_sample_rate;
239 int reformat_pair;
240 AVAudioConvert *reformat_ctx;
241 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
242 FILE *logfile;
243
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244 AVFilterContext *output_video_filter;
245 AVFilterContext *input_video_filter;
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246 char *avfilter;
247 AVFilterGraph *graph;
6291d7e4 248
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249 int64_t sws_flags;
250 AVDictionary *opts;
251 int is_past_recording_time;
252 int stream_copy;
253 const char *attachment_filename;
254 int copy_initial_nonkeyframes;
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255} OutputStream;
256
6291d7e4 257
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258typedef struct OutputFile {
259 AVFormatContext *ctx;
260 AVDictionary *opts;
4288e031 261 int ost_index; /* index of the first stream in output_streams */
ef44a607 262 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 263 int64_t start_time; /* start time in microseconds */
f21f294e 264 uint64_t limit_filesize;
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265} OutputFile;
266
7636c8c6 267static InputStream *input_streams = NULL;
6291d7e4 268static int nb_input_streams = 0;
7636c8c6 269static InputFile *input_files = NULL;
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270static int nb_input_files = 0;
271
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272static OutputStream *output_streams = NULL;
273static int nb_output_streams = 0;
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274static OutputFile *output_files = NULL;
275static int nb_output_files = 0;
276
575ec4e1 277typedef struct OptionsContext {
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278 /* input/output options */
279 int64_t start_time;
7041bb3b 280 const char *format;
6b779ccc 281
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282 SpecifierOpt *codec_names;
283 int nb_codec_names;
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284 SpecifierOpt *audio_channels;
285 int nb_audio_channels;
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286 SpecifierOpt *audio_sample_rate;
287 int nb_audio_sample_rate;
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288 SpecifierOpt *frame_rates;
289 int nb_frame_rates;
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290 SpecifierOpt *frame_sizes;
291 int nb_frame_sizes;
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292 SpecifierOpt *frame_pix_fmts;
293 int nb_frame_pix_fmts;
35e6f8c1 294
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295 /* input options */
296 int64_t input_ts_offset;
f4805328 297 int rate_emu;
6b779ccc 298
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299 SpecifierOpt *ts_scale;
300 int nb_ts_scale;
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301 SpecifierOpt *dump_attachment;
302 int nb_dump_attachment;
33f75d72 303
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304 /* output options */
305 StreamMap *stream_maps;
306 int nb_stream_maps;
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307 /* first item specifies output metadata, second is input */
308 MetadataMap (*meta_data_maps)[2];
309 int nb_meta_data_maps;
310 int metadata_global_manual;
311 int metadata_streams_manual;
312 int metadata_chapters_manual;
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313 const char **attachments;
314 int nb_attachments;
6b779ccc 315
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316 int chapters_input_file;
317
6b779ccc 318 int64_t recording_time;
13ccba50 319 uint64_t limit_filesize;
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320 float mux_preload;
321 float mux_max_delay;
039267f1 322
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323 int video_disable;
324 int audio_disable;
325 int subtitle_disable;
326 int data_disable;
327
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328 /* indexed by output file stream index */
329 int *streamid_map;
330 int nb_streamid_map;
331
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332 SpecifierOpt *metadata;
333 int nb_metadata;
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334 SpecifierOpt *max_frames;
335 int nb_max_frames;
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336 SpecifierOpt *bitstream_filters;
337 int nb_bitstream_filters;
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338 SpecifierOpt *codec_tags;
339 int nb_codec_tags;
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340 SpecifierOpt *sample_fmts;
341 int nb_sample_fmts;
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342 SpecifierOpt *qscale;
343 int nb_qscale;
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344 SpecifierOpt *forced_key_frames;
345 int nb_forced_key_frames;
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346 SpecifierOpt *force_fps;
347 int nb_force_fps;
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348 SpecifierOpt *frame_aspect_ratios;
349 int nb_frame_aspect_ratios;
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350 SpecifierOpt *rc_overrides;
351 int nb_rc_overrides;
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352 SpecifierOpt *intra_matrices;
353 int nb_intra_matrices;
354 SpecifierOpt *inter_matrices;
355 int nb_inter_matrices;
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356 SpecifierOpt *top_field_first;
357 int nb_top_field_first;
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358 SpecifierOpt *metadata_map;
359 int nb_metadata_map;
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360 SpecifierOpt *presets;
361 int nb_presets;
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362 SpecifierOpt *copy_initial_nonkeyframes;
363 int nb_copy_initial_nonkeyframes;
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364 SpecifierOpt *filters;
365 int nb_filters;
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366} OptionsContext;
367
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368#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
369{\
370 int i, ret;\
371 for (i = 0; i < o->nb_ ## name; i++) {\
372 char *spec = o->name[i].specifier;\
373 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
374 outvar = o->name[i].u.type;\
375 else if (ret < 0)\
376 exit_program(1);\
377 }\
378}
379
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380static void reset_options(OptionsContext *o)
381{
382 const OptionDef *po = options;
383
384 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
385 while (po->name) {
386 void *dst = (uint8_t*)o + po->u.off;
387
388 if (po->flags & OPT_SPEC) {
389 SpecifierOpt **so = dst;
390 int i, *count = (int*)(so + 1);
391 for (i = 0; i < *count; i++) {
392 av_freep(&(*so)[i].specifier);
393 if (po->flags & OPT_STRING)
394 av_freep(&(*so)[i].u.str);
395 }
396 av_freep(so);
397 *count = 0;
398 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
399 av_freep(dst);
400 po++;
401 }
402
403 av_freep(&o->stream_maps);
847529f8 404 av_freep(&o->meta_data_maps);
495ecfd1 405 av_freep(&o->streamid_map);
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406
407 memset(o, 0, sizeof(*o));
6b779ccc 408
dc26318c 409 o->mux_max_delay = 0.7;
6b779ccc 410 o->recording_time = INT64_MAX;
13ccba50 411 o->limit_filesize = UINT64_MAX;
c5bb372e 412 o->chapters_input_file = INT_MAX;
6b779ccc 413
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414 uninit_opts();
415 init_opts();
416}
417
bc1ef855 418static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
64dca32c 419{
64dca32c 420 FrameBuffer *buf = av_mallocz(sizeof(*buf));
3715d841 421 int i, ret;
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422 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
423 int h_chroma_shift, v_chroma_shift;
424 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
425 int w = s->width, h = s->height;
426
427 if (!buf)
428 return AVERROR(ENOMEM);
429
430 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
431 w += 2*edge;
432 h += 2*edge;
433 }
434
435 avcodec_align_dimensions(s, &w, &h);
436 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
437 s->pix_fmt, 32)) < 0) {
438 av_freep(&buf);
439 return ret;
440 }
441 /* XXX this shouldn't be needed, but some tests break without this line
442 * those decoders are buggy and need to be fixed.
443 * the following tests fail:
f320fb89 444 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
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445 */
446 memset(buf->base[0], 128, ret);
447
448 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
3715d841 449 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
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450 const int h_shift = i==0 ? 0 : h_chroma_shift;
451 const int v_shift = i==0 ? 0 : v_chroma_shift;
452 if (s->flags & CODEC_FLAG_EMU_EDGE)
453 buf->data[i] = buf->base[i];
454 else
455 buf->data[i] = buf->base[i] +
456 FFALIGN((buf->linesize[i]*edge >> v_shift) +
457 (pixel_size*edge >> h_shift), 32);
458 }
459 buf->w = s->width;
460 buf->h = s->height;
461 buf->pix_fmt = s->pix_fmt;
462 buf->ist = ist;
463
464 *pbuf = buf;
465 return 0;
466}
467
468static void free_buffer_pool(InputStream *ist)
469{
470 FrameBuffer *buf = ist->buffer_pool;
471 while (buf) {
472 ist->buffer_pool = buf->next;
473 av_freep(&buf->base[0]);
474 av_free(buf);
475 buf = ist->buffer_pool;
476 }
477}
478
479static void unref_buffer(InputStream *ist, FrameBuffer *buf)
480{
481 av_assert0(buf->refcount);
482 buf->refcount--;
483 if (!buf->refcount) {
484 buf->next = ist->buffer_pool;
485 ist->buffer_pool = buf;
486 }
487}
488
489static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
490{
491 InputStream *ist = s->opaque;
492 FrameBuffer *buf;
493 int ret, i;
494
bc1ef855 495 if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
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496 return ret;
497
498 buf = ist->buffer_pool;
499 ist->buffer_pool = buf->next;
500 buf->next = NULL;
501 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
502 av_freep(&buf->base[0]);
503 av_free(buf);
bc1ef855 504 if ((ret = alloc_buffer(ist, s, &buf)) < 0)
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505 return ret;
506 }
507 buf->refcount++;
508
509 frame->opaque = buf;
510 frame->type = FF_BUFFER_TYPE_USER;
511 frame->extended_data = frame->data;
512 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
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513 frame->width = buf->w;
514 frame->height = buf->h;
515 frame->format = buf->pix_fmt;
516 frame->sample_aspect_ratio = s->sample_aspect_ratio;
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517
518 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
519 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
520 frame->data[i] = buf->data[i];
521 frame->linesize[i] = buf->linesize[i];
522 }
523
524 return 0;
525}
526
527static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
528{
529 InputStream *ist = s->opaque;
530 FrameBuffer *buf = frame->opaque;
531 int i;
532
533 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
534 frame->data[i] = NULL;
535
536 unref_buffer(ist, buf);
537}
538
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539static void filter_release_buffer(AVFilterBuffer *fb)
540{
541 FrameBuffer *buf = fb->priv;
542 av_free(fb);
543 unref_buffer(buf->ist, buf);
544}
545
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546static int configure_video_filters(InputStream *ist, OutputStream *ost)
547{
548 AVFilterContext *last_filter, *filter;
549 /** filter graph containing all filters including input & output */
550 AVCodecContext *codec = ost->st->codec;
551 AVCodecContext *icodec = ist->st->codec;
abe655a4 552 SinkContext sink_ctx = { .pix_fmt = codec->pix_fmt };
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553 AVRational sample_aspect_ratio;
554 char args[255];
555 int ret;
556
557 ost->graph = avfilter_graph_alloc();
558
7636c8c6 559 if (ist->st->sample_aspect_ratio.num) {
6291d7e4 560 sample_aspect_ratio = ist->st->sample_aspect_ratio;
7636c8c6 561 } else
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562 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
563
564 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
565 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
566 sample_aspect_ratio.num, sample_aspect_ratio.den);
567
568 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
569 "src", args, NULL, ost->graph);
570 if (ret < 0)
571 return ret;
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572 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
573 "out", NULL, &sink_ctx, ost->graph);
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574 if (ret < 0)
575 return ret;
576 last_filter = ost->input_video_filter;
577
7636c8c6 578 if (codec->width != icodec->width || codec->height != icodec->height) {
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579 snprintf(args, 255, "%d:%d:flags=0x%X",
580 codec->width,
581 codec->height,
3b3ea346 582 (unsigned)ost->sws_flags);
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583 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
584 NULL, args, NULL, ost->graph)) < 0)
585 return ret;
586 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
587 return ret;
588 last_filter = filter;
589 }
590
3b3ea346 591 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
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592 ost->graph->scale_sws_opts = av_strdup(args);
593
594 if (ost->avfilter) {
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595 AVFilterInOut *outputs = avfilter_inout_alloc();
596 AVFilterInOut *inputs = avfilter_inout_alloc();
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597
598 outputs->name = av_strdup("in");
599 outputs->filter_ctx = last_filter;
600 outputs->pad_idx = 0;
601 outputs->next = NULL;
602
603 inputs->name = av_strdup("out");
604 inputs->filter_ctx = ost->output_video_filter;
605 inputs->pad_idx = 0;
606 inputs->next = NULL;
607
608 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
609 return ret;
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610 } else {
611 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
612 return ret;
613 }
614
615 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
616 return ret;
617
618 codec->width = ost->output_video_filter->inputs[0]->w;
619 codec->height = ost->output_video_filter->inputs[0]->h;
620 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
bb337b4f 621 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
7636c8c6 622 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
6291d7e4
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623 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
624
625 return 0;
626}
6291d7e4
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627
628static void term_exit(void)
629{
630 av_log(NULL, AV_LOG_QUIET, "");
631}
632
633static volatile int received_sigterm = 0;
634static volatile int received_nb_signals = 0;
635
636static void
637sigterm_handler(int sig)
638{
639 received_sigterm = sig;
640 received_nb_signals++;
641 term_exit();
642}
643
644static void term_init(void)
645{
7636c8c6 646 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
6291d7e4
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647 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
648#ifdef SIGXCPU
649 signal(SIGXCPU, sigterm_handler);
650#endif
651}
652
2abe947a 653static int decode_interrupt_cb(void *ctx)
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AK
654{
655 return received_nb_signals > 1;
656}
657
2abe947a
MS
658static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
659
dad09ff9 660void exit_program(int ret)
6291d7e4
AK
661{
662 int i;
663
664 /* close files */
7636c8c6 665 for (i = 0; i < nb_output_files; i++) {
af70aa45 666 AVFormatContext *s = output_files[i].ctx;
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667 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
668 avio_close(s->pb);
669 avformat_free_context(s);
af70aa45 670 av_dict_free(&output_files[i].opts);
6291d7e4 671 }
1135a071
JG
672 for (i = 0; i < nb_output_streams; i++) {
673 AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
674 while (bsfc) {
675 AVBitStreamFilterContext *next = bsfc->next;
676 av_bitstream_filter_close(bsfc);
677 bsfc = next;
678 }
679 output_streams[i].bitstream_filters = NULL;
ac646076 680
ee458cb1
JR
681 if (output_streams[i].output_frame) {
682 AVFrame *frame = output_streams[i].output_frame;
683 if (frame->extended_data != frame->data)
684 av_freep(&frame->extended_data);
685 av_freep(&frame);
686 }
687
ac646076 688 av_freep(&output_streams[i].avfilter);
1135a071 689 }
7636c8c6 690 for (i = 0; i < nb_input_files; i++) {
cd3716b9 691 avformat_close_input(&input_files[i].ctx);
6291d7e4 692 }
9179f27c
JR
693 for (i = 0; i < nb_input_streams; i++) {
694 av_freep(&input_streams[i].decoded_frame);
695 av_freep(&input_streams[i].filtered_frame);
6291d7e4 696 av_dict_free(&input_streams[i].opts);
64dca32c 697 free_buffer_pool(&input_streams[i]);
9179f27c 698 }
6291d7e4 699
6291d7e4
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700 if (vstats_file)
701 fclose(vstats_file);
702 av_free(vstats_filename);
703
6291d7e4
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704 av_freep(&input_streams);
705 av_freep(&input_files);
4288e031 706 av_freep(&output_streams);
af70aa45 707 av_freep(&output_files);
6291d7e4 708
6291d7e4
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709 uninit_opts();
710 av_free(audio_buf);
ee458cb1 711 allocated_audio_buf_size = 0;
f3ab3e1a
JR
712 av_free(async_buf);
713 allocated_async_buf_size = 0;
6291d7e4 714
6291d7e4 715 avfilter_uninit();
776f2bb9 716 avformat_network_deinit();
6291d7e4
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717
718 if (received_sigterm) {
e3245b26
AK
719 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
720 (int) received_sigterm);
6291d7e4
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721 exit (255);
722 }
723
f75e3d25 724 exit(ret);
6291d7e4
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725}
726
727static void assert_avoptions(AVDictionary *m)
728{
729 AVDictionaryEntry *t;
730 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 731 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
6291d7e4
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732 exit_program(1);
733 }
734}
735
736static void assert_codec_experimental(AVCodecContext *c, int encoder)
737{
738 const char *codec_string = encoder ? "encoder" : "decoder";
739 AVCodec *codec;
740 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
741 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 742 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
6291d7e4
AK
743 "results.\nAdd '-strict experimental' if you want to use it.\n",
744 codec_string, c->codec->name);
745 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
746 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 747 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4
AK
748 codec_string, codec->name);
749 exit_program(1);
750 }
751}
752
6291d7e4
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753static void choose_sample_fmt(AVStream *st, AVCodec *codec)
754{
7636c8c6
AD
755 if (codec && codec->sample_fmts) {
756 const enum AVSampleFormat *p = codec->sample_fmts;
757 for (; *p != -1; p++) {
758 if (*p == st->codec->sample_fmt)
6291d7e4
AK
759 break;
760 }
761 if (*p == -1) {
762 av_log(NULL, AV_LOG_WARNING,
763 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
764 av_get_sample_fmt_name(st->codec->sample_fmt),
765 codec->name,
766 av_get_sample_fmt_name(codec->sample_fmts[0]));
767 st->codec->sample_fmt = codec->sample_fmts[0];
768 }
769 }
770}
771
772/**
773 * Update the requested input sample format based on the output sample format.
774 * This is currently only used to request float output from decoders which
775 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
776 * Ideally this will be removed in the future when decoders do not do format
777 * conversion and only output in their native format.
778 */
779static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
780 AVCodecContext *enc)
781{
782 /* if sample formats match or a decoder sample format has already been
783 requested, just return */
784 if (enc->sample_fmt == dec->sample_fmt ||
785 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
786 return;
787
788 /* if decoder supports more than one output format */
789 if (dec_codec && dec_codec->sample_fmts &&
790 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
791 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
792 const enum AVSampleFormat *p;
793 int min_dec = -1, min_inc = -1;
794
795 /* find a matching sample format in the encoder */
796 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
797 if (*p == enc->sample_fmt) {
798 dec->request_sample_fmt = *p;
799 return;
800 } else if (*p > enc->sample_fmt) {
801 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
802 } else
803 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
804 }
805
806 /* if none match, provide the one that matches quality closest */
807 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
808 enc->sample_fmt - min_dec;
809 }
810}
811
812static void choose_sample_rate(AVStream *st, AVCodec *codec)
813{
7636c8c6
AD
814 if (codec && codec->supported_samplerates) {
815 const int *p = codec->supported_samplerates;
816 int best = 0;
817 int best_dist = INT_MAX;
818 for (; *p; p++) {
819 int dist = abs(st->codec->sample_rate - *p);
820 if (dist < best_dist) {
821 best_dist = dist;
822 best = *p;
6291d7e4
AK
823 }
824 }
7636c8c6 825 if (best_dist) {
6291d7e4
AK
826 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
827 }
7636c8c6 828 st->codec->sample_rate = best;
6291d7e4
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829 }
830}
831
832static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
833{
7636c8c6
AD
834 if (codec && codec->pix_fmts) {
835 const enum PixelFormat *p = codec->pix_fmts;
836 if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
837 if (st->codec->codec_id == CODEC_ID_MJPEG) {
838 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
839 } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
840 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
841 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
6291d7e4
AK
842 }
843 }
105ab61c 844 for (; *p != PIX_FMT_NONE; p++) {
7636c8c6 845 if (*p == st->codec->pix_fmt)
6291d7e4
AK
846 break;
847 }
105ab61c 848 if (*p == PIX_FMT_NONE) {
7636c8c6 849 if (st->codec->pix_fmt != PIX_FMT_NONE)
6291d7e4 850 av_log(NULL, AV_LOG_WARNING,
7636c8c6
AD
851 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
852 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
853 codec->name,
854 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
6291d7e4
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855 st->codec->pix_fmt = codec->pix_fmts[0];
856 }
857 }
858}
859
6291d7e4 860static double
6e983902 861get_sync_ipts(const OutputStream *ost, int64_t pts)
6291d7e4 862{
ea065176 863 OutputFile *of = &output_files[ost->file_index];
6e983902 864 return (double)(pts - of->start_time) / AV_TIME_BASE;
6291d7e4
AK
865}
866
f15f02c2 867static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 868{
f15f02c2
AK
869 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
870 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
871 int ret;
872
99932847
AK
873 /*
874 * Audio encoders may split the packets -- #frames in != #packets out.
875 * But there is no reordering, so we can limit the number of output packets
876 * by simply dropping them here.
877 * Counting encoded video frames needs to be done separately because of
878 * reordering, see do_video_out()
879 */
880 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
881 if (ost->frame_number >= ost->max_frames) {
882 av_free_packet(pkt);
99932847 883 return;
c9594fe0 884 }
99932847
AK
885 ost->frame_number++;
886 }
887
7636c8c6
AD
888 while (bsfc) {
889 AVPacket new_pkt = *pkt;
890 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
891 &new_pkt.data, &new_pkt.size,
892 pkt->data, pkt->size,
893 pkt->flags & AV_PKT_FLAG_KEY);
894 if (a > 0) {
6291d7e4 895 av_free_packet(pkt);
7636c8c6
AD
896 new_pkt.destruct = av_destruct_packet;
897 } else if (a < 0) {
e3245b26
AK
898 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
899 bsfc->filter->name, pkt->stream_index,
900 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
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901 print_error("", a);
902 if (exit_on_error)
903 exit_program(1);
904 }
7636c8c6 905 *pkt = new_pkt;
6291d7e4 906
7636c8c6 907 bsfc = bsfc->next;
6291d7e4
AK
908 }
909
61a09968 910 pkt->stream_index = ost->index;
7636c8c6
AD
911 ret = av_interleaved_write_frame(s, pkt);
912 if (ret < 0) {
6291d7e4
AK
913 print_error("av_interleaved_write_frame()", ret);
914 exit_program(1);
915 }
916}
917
1270e12e
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918static int check_recording_time(OutputStream *ost)
919{
920 OutputFile *of = &output_files[ost->file_index];
921
922 if (of->recording_time != INT64_MAX &&
923 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
924 AV_TIME_BASE_Q) >= 0) {
925 ost->is_past_recording_time = 1;
926 return 0;
927 }
928 return 1;
929}
930
fdab793a
AC
931static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
932{
933 int fill_char = 0x00;
934 if (sample_fmt == AV_SAMPLE_FMT_U8)
935 fill_char = 0x80;
936 memset(buf, fill_char, size);
937}
938
ee458cb1
JR
939static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
940 const uint8_t *buf, int buf_size)
941{
942 AVCodecContext *enc = ost->st->codec;
943 AVFrame *frame = NULL;
944 AVPacket pkt;
945 int ret, got_packet;
946
947 av_init_packet(&pkt);
948 pkt.data = NULL;
949 pkt.size = 0;
950
951 if (buf) {
952 if (!ost->output_frame) {
953 ost->output_frame = avcodec_alloc_frame();
954 if (!ost->output_frame) {
955 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
956 exit_program(1);
957 }
958 }
959 frame = ost->output_frame;
960 if (frame->extended_data != frame->data)
961 av_freep(&frame->extended_data);
962 avcodec_get_frame_defaults(frame);
963
964 frame->nb_samples = buf_size /
965 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
966 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
967 buf, buf_size, 1)) < 0) {
968 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
969 exit_program(1);
970 }
1270e12e
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971
972 if (!check_recording_time(ost))
973 return 0;
974
9b9fc9ba 975 frame->pts = ost->sync_opts;
1270e12e 976 ost->sync_opts += frame->nb_samples;
ee458cb1
JR
977 }
978
979 got_packet = 0;
980 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
981 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
982 exit_program(1);
983 }
984
985 if (got_packet) {
ee458cb1
JR
986 if (pkt.pts != AV_NOPTS_VALUE)
987 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
988 if (pkt.dts != AV_NOPTS_VALUE)
989 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
990 if (pkt.duration > 0)
991 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
992
993 write_frame(s, &pkt, ost);
994
995 audio_size += pkt.size;
996 }
997
ee458cb1
JR
998 return pkt.size;
999}
1000
9869e963
JR
1001static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
1002 int nb_samples)
1003{
1004 int64_t audio_buf_samples;
1005 int audio_buf_size;
1006
1007 /* calculate required number of samples to allocate */
1008 audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
1009 dec->sample_rate;
4094fc99 1010 audio_buf_samples = 4 * audio_buf_samples + 16; // safety factors for resampling
9869e963
JR
1011 audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
1012 if (audio_buf_samples > INT_MAX)
1013 return AVERROR(EINVAL);
1014
1015 audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
1016 audio_buf_samples,
679a973e 1017 enc->sample_fmt, 0);
9869e963
JR
1018 if (audio_buf_size < 0)
1019 return audio_buf_size;
1020
1021 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1022 if (!audio_buf)
1023 return AVERROR(ENOMEM);
1024
1025 return 0;
1026}
1027
d1241ff3
JR
1028static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1029 InputStream *ist, AVFrame *decoded_frame)
6291d7e4
AK
1030{
1031 uint8_t *buftmp;
6291d7e4 1032
ee458cb1 1033 int size_out, frame_bytes, resample_changed;
7636c8c6
AD
1034 AVCodecContext *enc = ost->st->codec;
1035 AVCodecContext *dec = ist->st->codec;
6291d7e4
AK
1036 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1037 int isize = av_get_bytes_per_sample(dec->sample_fmt);
d1241ff3
JR
1038 uint8_t *buf = decoded_frame->data[0];
1039 int size = decoded_frame->nb_samples * dec->channels * isize;
7636c8c6 1040
9869e963
JR
1041 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
1042 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
6291d7e4
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1043 exit_program(1);
1044 }
1045
1046 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1047 ost->audio_resample = 1;
1048
1049 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1050 ost->resample_channels != dec->channels ||
1051 ost->resample_sample_rate != dec->sample_rate;
1052
1053 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1054 if (resample_changed) {
9a414d89 1055 av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
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1056 ist->file_index, ist->st->index,
1057 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1058 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1059 ost->resample_sample_fmt = dec->sample_fmt;
1060 ost->resample_channels = dec->channels;
1061 ost->resample_sample_rate = dec->sample_rate;
1062 if (ost->resample)
1063 audio_resample_close(ost->resample);
1064 }
1065 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1066 if (audio_sync_method <= 1 &&
1067 ost->resample_sample_fmt == enc->sample_fmt &&
1068 ost->resample_channels == enc->channels &&
1069 ost->resample_sample_rate == enc->sample_rate) {
1070 ost->resample = NULL;
1071 ost->audio_resample = 0;
1072 } else if (ost->audio_resample) {
1073 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
e3245b26 1074 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
6291d7e4
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1075 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1076 enc->sample_rate, dec->sample_rate,
1077 enc->sample_fmt, dec->sample_fmt,
1078 16, 10, 0, 0.8);
1079 if (!ost->resample) {
e3245b26
AK
1080 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1081 dec->channels, dec->sample_rate,
1082 enc->channels, enc->sample_rate);
6291d7e4
AK
1083 exit_program(1);
1084 }
1085 }
1086 }
1087
1088#define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
7636c8c6
AD
1089 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1090 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
6291d7e4
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1091 if (ost->reformat_ctx)
1092 av_audio_convert_free(ost->reformat_ctx);
1093 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1094 dec->sample_fmt, 1, NULL, 0);
1095 if (!ost->reformat_ctx) {
e3245b26
AK
1096 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1097 av_get_sample_fmt_name(dec->sample_fmt),
1098 av_get_sample_fmt_name(enc->sample_fmt));
6291d7e4
AK
1099 exit_program(1);
1100 }
7636c8c6 1101 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
6291d7e4
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1102 }
1103
b073819b 1104 if (audio_sync_method > 0) {
23576b3f 1105 double delta = get_sync_ipts(ost, ist->last_dts) * enc->sample_rate - ost->sync_opts -
7636c8c6 1106 av_fifo_size(ost->fifo) / (enc->channels * osize);
fdab793a
AC
1107 int idelta = delta * dec->sample_rate / enc->sample_rate;
1108 int byte_delta = idelta * isize * dec->channels;
6291d7e4 1109
7636c8c6
AD
1110 // FIXME resample delay
1111 if (fabs(delta) > 50) {
1112 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1113 if (byte_delta < 0) {
1114 byte_delta = FFMAX(byte_delta, -size);
6291d7e4
AK
1115 size += byte_delta;
1116 buf -= byte_delta;
fdab793a
AC
1117 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1118 -byte_delta / (isize * dec->channels));
7636c8c6 1119 if (!size)
6291d7e4 1120 return;
7636c8c6
AD
1121 ist->is_start = 0;
1122 } else {
f3ab3e1a
JR
1123 av_fast_malloc(&async_buf, &allocated_async_buf_size,
1124 byte_delta + size);
1125 if (!async_buf) {
1126 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1127 exit_program(1);
1128 }
6291d7e4 1129
9869e963
JR
1130 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
1131 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1132 exit_program(1);
6291d7e4 1133 }
7636c8c6 1134 ist->is_start = 0;
6291d7e4 1135
f3ab3e1a
JR
1136 generate_silence(async_buf, dec->sample_fmt, byte_delta);
1137 memcpy(async_buf + byte_delta, buf, size);
1138 buf = async_buf;
6291d7e4 1139 size += byte_delta;
fdab793a 1140 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
6291d7e4 1141 }
7636c8c6
AD
1142 } else if (audio_sync_method > 1) {
1143 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
6291d7e4 1144 av_assert0(ost->audio_resample);
e3245b26
AK
1145 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1146 delta, comp, enc->sample_rate);
6291d7e4
AK
1147// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
1148 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1149 }
1150 }
b073819b 1151 } else if (audio_sync_method == 0)
23576b3f 1152 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->last_dts) * enc->sample_rate) -
7636c8c6 1153 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
6291d7e4
AK
1154
1155 if (ost->audio_resample) {
1156 buftmp = audio_buf;
1157 size_out = audio_resample(ost->resample,
1158 (short *)buftmp, (short *)buf,
1159 size / (dec->channels * isize));
1160 size_out = size_out * enc->channels * osize;
1161 } else {
1162 buftmp = buf;
1163 size_out = size;
1164 }
1165
7636c8c6
AD
1166 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1167 const void *ibuf[6] = { buftmp };
1168 void *obuf[6] = { audio_buf };
1169 int istride[6] = { isize };
1170 int ostride[6] = { osize };
1171 int len = size_out / istride[0];
1172 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
6291d7e4
AK
1173 printf("av_audio_convert() failed\n");
1174 if (exit_on_error)
1175 exit_program(1);
1176 return;
1177 }
1178 buftmp = audio_buf;
7636c8c6 1179 size_out = len * osize;
6291d7e4
AK
1180 }
1181
1182 /* now encode as many frames as possible */
ee458cb1 1183 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
6291d7e4
AK
1184 /* output resampled raw samples */
1185 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
e3245b26 1186 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
6291d7e4
AK
1187 exit_program(1);
1188 }
1189 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1190
1191 frame_bytes = enc->frame_size * osize * enc->channels;
1192
1193 while (av_fifo_size(ost->fifo) >= frame_bytes) {
6291d7e4 1194 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
ee458cb1 1195 encode_audio_frame(s, ost, audio_buf, frame_bytes);
6291d7e4
AK
1196 }
1197 } else {
ee458cb1 1198 encode_audio_frame(s, ost, buftmp, size_out);
6291d7e4
AK
1199 }
1200}
1201
1202static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1203{
1204 AVCodecContext *dec;
1205 AVPicture *picture2;
1206 AVPicture picture_tmp;
1207 uint8_t *buf = 0;
1208
1209 dec = ist->st->codec;
1210
1211 /* deinterlace : must be done before any resize */
1212 if (do_deinterlace) {
1213 int size;
1214
1215 /* create temporary picture */
1216 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1217 buf = av_malloc(size);
6291d7e4
AK
1218 if (!buf)
1219 return;
1220
1221 picture2 = &picture_tmp;
1222 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1223
7636c8c6 1224 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1225 dec->pix_fmt, dec->width, dec->height) < 0) {
1226 /* if error, do not deinterlace */
e3245b26 1227 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1228 av_free(buf);
1229 buf = NULL;
1230 picture2 = picture;
1231 }
1232 } else {
1233 picture2 = picture;
1234 }
1235
1236 if (picture != picture2)
1237 *picture = *picture2;
1238 *bufp = buf;
1239}
1240
6291d7e4
AK
1241static void do_subtitle_out(AVFormatContext *s,
1242 OutputStream *ost,
1243 InputStream *ist,
1244 AVSubtitle *sub,
1245 int64_t pts)
1246{
1247 static uint8_t *subtitle_out = NULL;
1248 int subtitle_out_max_size = 1024 * 1024;
1249 int subtitle_out_size, nb, i;
1250 AVCodecContext *enc;
1251 AVPacket pkt;
1252
1253 if (pts == AV_NOPTS_VALUE) {
e3245b26 1254 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1255 if (exit_on_error)
1256 exit_program(1);
1257 return;
1258 }
1259
1260 enc = ost->st->codec;
1261
1262 if (!subtitle_out) {
1263 subtitle_out = av_malloc(subtitle_out_max_size);
1264 }
1265
1266 /* Note: DVB subtitle need one packet to draw them and one other
1267 packet to clear them */
1268 /* XXX: signal it in the codec context ? */
1269 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1270 nb = 2;
1271 else
1272 nb = 1;
1273
7636c8c6 1274 for (i = 0; i < nb; i++) {
1270e12e
AK
1275 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1276 if (!check_recording_time(ost))
1277 return;
1278
6291d7e4
AK
1279 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1280 // start_display_time is required to be 0
7636c8c6
AD
1281 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1282 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1283 sub->start_display_time = 0;
1284 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1285 subtitle_out_max_size, sub);
1286 if (subtitle_out_size < 0) {
e3245b26 1287 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1288 exit_program(1);
1289 }
1290
1291 av_init_packet(&pkt);
6291d7e4
AK
1292 pkt.data = subtitle_out;
1293 pkt.size = subtitle_out_size;
7636c8c6 1294 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
AK
1295 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1296 /* XXX: the pts correction is handled here. Maybe handling
1297 it in the codec would be better */
1298 if (i == 0)
1299 pkt.pts += 90 * sub->start_display_time;
1300 else
1301 pkt.pts += 90 * sub->end_display_time;
1302 }
f15f02c2 1303 write_frame(s, &pkt, ost);
6291d7e4
AK
1304 }
1305}
1306
87ef060c
AC
1307static void do_video_out(AVFormatContext *s,
1308 OutputStream *ost,
87ef060c
AC
1309 AVFrame *in_picture,
1310 int *frame_size, float quality)
1311{
553735f5 1312 int nb_frames, i, ret, format_video_sync;
f593628e 1313 AVCodecContext *enc;
d43040e2 1314 double sync_ipts, delta;
87ef060c
AC
1315
1316 enc = ost->st->codec;
87ef060c 1317
6e983902 1318 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
d43040e2 1319 delta = sync_ipts - ost->sync_opts;
87ef060c
AC
1320
1321 /* by default, we output a single frame */
1322 nb_frames = 1;
1323
1324 *frame_size = 0;
1325
553735f5 1326 format_video_sync = video_sync_method;
e8c04f62
AK
1327 if (format_video_sync == VSYNC_AUTO)
1328 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1329 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
553735f5 1330
d43040e2
AK
1331 switch (format_video_sync) {
1332 case VSYNC_CFR:
7636c8c6 1333 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
d43040e2 1334 if (delta < -1.1)
87ef060c 1335 nb_frames = 0;
d43040e2
AK
1336 else if (delta > 1.1)
1337 nb_frames = lrintf(delta);
1338 break;
1339 case VSYNC_VFR:
1340 if (delta <= -0.6)
1341 nb_frames = 0;
1342 else if (delta > 0.6)
1343 ost->sync_opts = lrintf(sync_ipts);
1344 break;
1345 case VSYNC_PASSTHROUGH:
7636c8c6 1346 ost->sync_opts = lrintf(sync_ipts);
d43040e2
AK
1347 break;
1348 default:
1349 av_assert0(0);
1350 }
87ef060c 1351
96139b5e 1352 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
d43040e2
AK
1353 if (nb_frames == 0) {
1354 nb_frames_drop++;
1355 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1356 return;
d43040e2
AK
1357 } else if (nb_frames > 1) {
1358 nb_frames_dup += nb_frames - 1;
1359 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1360 }
87ef060c 1361
1270e12e
AK
1362 if (!ost->frame_number)
1363 ost->first_pts = ost->sync_opts;
1364
6291d7e4 1365 /* duplicates frame if needed */
7636c8c6 1366 for (i = 0; i < nb_frames; i++) {
6291d7e4
AK
1367 AVPacket pkt;
1368 av_init_packet(&pkt);
8e37038a
AK
1369 pkt.data = NULL;
1370 pkt.size = 0;
6291d7e4 1371
1270e12e
AK
1372 if (!check_recording_time(ost))
1373 return;
1374
150ddbc1
MR
1375 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1376 enc->codec->id == CODEC_ID_RAWVIDEO) {
6291d7e4 1377 /* raw pictures are written as AVPicture structure to
bb337b4f 1378 avoid any copies. We support temporarily the older
6291d7e4 1379 method. */
f593628e
AC
1380 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1381 enc->coded_frame->top_field_first = in_picture->top_field_first;
4648fe63 1382 pkt.data = (uint8_t *)in_picture;
7636c8c6
AD
1383 pkt.size = sizeof(AVPicture);
1384 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
6291d7e4
AK
1385 pkt.flags |= AV_PKT_FLAG_KEY;
1386
f15f02c2 1387 write_frame(s, &pkt, ost);
6291d7e4 1388 } else {
8e37038a 1389 int got_packet;
6291d7e4
AK
1390 AVFrame big_picture;
1391
4648fe63 1392 big_picture = *in_picture;
6291d7e4
AK
1393 /* better than nothing: use input picture interlaced
1394 settings */
1395 big_picture.interlaced_frame = in_picture->interlaced_frame;
1396 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
828e0bcb 1397 if (ost->top_field_first == -1)
6291d7e4
AK
1398 big_picture.top_field_first = in_picture->top_field_first;
1399 else
828e0bcb 1400 big_picture.top_field_first = !!ost->top_field_first;
6291d7e4
AK
1401 }
1402
f4ad238c 1403 /* handles same_quant here. This is not correct because it may
6291d7e4
AK
1404 not be a global option */
1405 big_picture.quality = quality;
d242d80e 1406 if (!enc->me_threshold)
6291d7e4 1407 big_picture.pict_type = 0;
7636c8c6 1408 big_picture.pts = ost->sync_opts;
6291d7e4
AK
1409 if (ost->forced_kf_index < ost->forced_kf_count &&
1410 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1411 big_picture.pict_type = AV_PICTURE_TYPE_I;
1412 ost->forced_kf_index++;
1413 }
8e37038a 1414 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
6291d7e4 1415 if (ret < 0) {
e3245b26 1416 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6291d7e4
AK
1417 exit_program(1);
1418 }
1419
8e37038a
AK
1420 if (got_packet) {
1421 if (pkt.pts != AV_NOPTS_VALUE)
1422 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1423 if (pkt.dts != AV_NOPTS_VALUE)
1424 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1425
f15f02c2 1426 write_frame(s, &pkt, ost);
39da3b22
AK
1427 *frame_size = pkt.size;
1428 video_size += pkt.size;
324fbadf 1429
6291d7e4
AK
1430 /* if two pass, output log */
1431 if (ost->logfile && enc->stats_out) {
1432 fprintf(ost->logfile, "%s", enc->stats_out);
1433 }
1434 }
1435 }
1436 ost->sync_opts++;
99932847
AK
1437 /*
1438 * For video, number of frames in == number of packets out.
1439 * But there may be reordering, so we can't throw away frames on encoder
1440 * flush, we need to limit them here, before they go into encoder.
1441 */
1442 ost->frame_number++;
6291d7e4
AK
1443 }
1444}
1445
7636c8c6
AD
1446static double psnr(double d)
1447{
1448 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1449}
1450
1451static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1452 int frame_size)
1453{
1454 AVCodecContext *enc;
1455 int frame_number;
1456 double ti1, bitrate, avg_bitrate;
1457
1458 /* this is executed just the first time do_video_stats is called */
1459 if (!vstats_file) {
1460 vstats_file = fopen(vstats_filename, "w");
1461 if (!vstats_file) {
1462 perror("fopen");
1463 exit_program(1);
1464 }
1465 }
1466
1467 enc = ost->st->codec;
1468 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1469 frame_number = ost->frame_number;
7636c8c6 1470 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1471 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1472 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1473
1474 fprintf(vstats_file,"f_size= %6d ", frame_size);
1475 /* compute pts value */
1476 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1477 if (ti1 < 0.01)
1478 ti1 = 0.01;
1479
7636c8c6 1480 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1481 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1482 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1483 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1484 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1485 }
1486}
1487
af70aa45 1488static void print_report(OutputFile *output_files,
4288e031 1489 OutputStream *ost_table, int nb_ostreams,
c5ad2c2c 1490 int is_last_report, int64_t timer_start)
6291d7e4
AK
1491{
1492 char buf[1024];
1493 OutputStream *ost;
1494 AVFormatContext *oc;
1495 int64_t total_size;
1496 AVCodecContext *enc;
1497 int frame_number, vid, i;
1498 double bitrate, ti1, pts;
1499 static int64_t last_time = -1;
1500 static int qp_histogram[52];
1501
3460dd8a
AK
1502 if (!print_stats && !is_last_report)
1503 return;
1504
6291d7e4
AK
1505 if (!is_last_report) {
1506 int64_t cur_time;
1507 /* display the report every 0.5 seconds */
1508 cur_time = av_gettime();
1509 if (last_time == -1) {
1510 last_time = cur_time;
1511 return;
1512 }
1513 if ((cur_time - last_time) < 500000)
1514 return;
1515 last_time = cur_time;
1516 }
1517
1518
af70aa45 1519 oc = output_files[0].ctx;
6291d7e4
AK
1520
1521 total_size = avio_size(oc->pb);
7636c8c6
AD
1522 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1523 total_size = avio_tell(oc->pb);
6291d7e4
AK
1524
1525 buf[0] = '\0';
1526 ti1 = 1e10;
1527 vid = 0;
7636c8c6 1528 for (i = 0; i < nb_ostreams; i++) {
6291d7e4 1529 float q = -1;
4288e031 1530 ost = &ost_table[i];
6291d7e4 1531 enc = ost->st->codec;
3d813e4c 1532 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1533 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1534 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1535 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1536 }
1537 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1538 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1539
1540 frame_number = ost->frame_number;
1541 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1542 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1543 if (is_last_report)
6291d7e4 1544 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1545 if (qp_hist) {
6291d7e4
AK
1546 int j;
1547 int qp = lrintf(q);
7636c8c6 1548 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1549 qp_histogram[qp]++;
7636c8c6
AD
1550 for (j = 0; j < 32; j++)
1551 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1552 }
7636c8c6 1553 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1554 int j;
7636c8c6
AD
1555 double error, error_sum = 0;
1556 double scale, scale_sum = 0;
1557 char type[3] = { 'Y','U','V' };
6291d7e4 1558 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1559 for (j = 0; j < 3; j++) {
1560 if (is_last_report) {
1561 error = enc->error[j];
1562 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1563 } else {
1564 error = enc->coded_frame->error[j];
1565 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1566 }
7636c8c6
AD
1567 if (j)
1568 scale /= 4;
6291d7e4
AK
1569 error_sum += error;
1570 scale_sum += scale;
7636c8c6 1571 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1572 }
7636c8c6 1573 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1574 }
1575 vid = 1;
1576 }
1577 /* compute min output value */
1578 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1579 if ((pts < ti1) && (pts > 0))
1580 ti1 = pts;
1581 }
1582 if (ti1 < 0.01)
1583 ti1 = 0.01;
1584
e3245b26 1585 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1586
e3245b26 1587 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1588 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1589 (double)total_size / 1024, ti1, bitrate);
1590
e3245b26
AK
1591 if (nb_frames_dup || nb_frames_drop)
1592 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1593 nb_frames_dup, nb_frames_drop);
6291d7e4 1594
f5646a32 1595 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1596
e3245b26 1597 fflush(stderr);
6291d7e4 1598
e3245b26 1599 if (is_last_report) {
6291d7e4 1600 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1601 av_log(NULL, AV_LOG_INFO, "\n");
1602 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1603 video_size / 1024.0,
1604 audio_size / 1024.0,
1605 extra_size / 1024.0,
1606 100.0 * (total_size - raw) / raw
6291d7e4
AK
1607 );
1608 }
1609}
1610
b62b5cb6 1611static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
4a4ce2e7
AK
1612{
1613 int i, ret;
1614
1615 for (i = 0; i < nb_ostreams; i++) {
6f1c66d5
AK
1616 OutputStream *ost = &ost_table[i];
1617 AVCodecContext *enc = ost->st->codec;
1618 AVFormatContext *os = output_files[ost->file_index].ctx;
ee458cb1 1619 int stop_encoding = 0;
6f1c66d5 1620
b62b5cb6 1621 if (!ost->encoding_needed)
6f1c66d5
AK
1622 continue;
1623
7636c8c6 1624 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1625 continue;
150ddbc1 1626 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1627 continue;
1628
7636c8c6 1629 for (;;) {
6f1c66d5 1630 AVPacket pkt;
8e37038a 1631 int fifo_bytes, got_packet;
6f1c66d5 1632 av_init_packet(&pkt);
ee458cb1
JR
1633 pkt.data = NULL;
1634 pkt.size = 0;
6f1c66d5
AK
1635
1636 switch (ost->st->codec->codec_type) {
1637 case AVMEDIA_TYPE_AUDIO:
1638 fifo_bytes = av_fifo_size(ost->fifo);
6f1c66d5 1639 if (fifo_bytes > 0) {
ee458cb1
JR
1640 /* encode any samples remaining in fifo */
1641 int frame_bytes = fifo_bytes;
6f1c66d5
AK
1642
1643 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
ee458cb1
JR
1644
1645 /* pad last frame with silence if needed */
1646 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1647 frame_bytes = enc->frame_size * enc->channels *
1648 av_get_bytes_per_sample(enc->sample_fmt);
6f1c66d5 1649 if (allocated_audio_buf_size < frame_bytes)
4a4ce2e7 1650 exit_program(1);
6f1c66d5 1651 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
4a4ce2e7 1652 }
ee458cb1
JR
1653 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1654 } else {
1655 /* flush encoder with NULL frames until it is done
1656 returning packets */
1657 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1658 stop_encoding = 1;
1659 break;
1660 }
6f1c66d5 1661 }
6f1c66d5
AK
1662 break;
1663 case AVMEDIA_TYPE_VIDEO:
8e37038a 1664 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
6f1c66d5 1665 if (ret < 0) {
e3245b26 1666 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6f1c66d5
AK
1667 exit_program(1);
1668 }
1669 video_size += ret;
6f1c66d5
AK
1670 if (ost->logfile && enc->stats_out) {
1671 fprintf(ost->logfile, "%s", enc->stats_out);
1672 }
8e37038a 1673 if (!got_packet) {
ee458cb1
JR
1674 stop_encoding = 1;
1675 break;
1676 }
8e37038a
AK
1677 if (pkt.pts != AV_NOPTS_VALUE)
1678 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1679 if (pkt.dts != AV_NOPTS_VALUE)
1680 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1681 write_frame(os, &pkt, ost);
6f1c66d5
AK
1682 break;
1683 default:
ee458cb1 1684 stop_encoding = 1;
4a4ce2e7 1685 }
ee458cb1 1686 if (stop_encoding)
6f1c66d5 1687 break;
4a4ce2e7
AK
1688 }
1689 }
1690}
1691
7204ec1a
AK
1692/*
1693 * Check whether a packet from ist should be written into ost at this time
1694 */
1695static int check_output_constraints(InputStream *ist, OutputStream *ost)
1696{
1697 OutputFile *of = &output_files[ost->file_index];
1698 int ist_index = ist - input_streams;
1699
1700 if (ost->source_index != ist_index)
1701 return 0;
1702
23576b3f 1703 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1704 return 0;
1705
7204ec1a
AK
1706 return 1;
1707}
1708
1709static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1710{
1711 OutputFile *of = &output_files[ost->file_index];
1712 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1713 AVPacket opkt;
1714
1715 av_init_packet(&opkt);
1716
1717 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1718 !ost->copy_initial_nonkeyframes)
1719 return;
1720
1270e12e 1721 if (of->recording_time != INT64_MAX &&
23576b3f 1722 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1723 ost->is_past_recording_time = 1;
1724 return;
1725 }
1726
7204ec1a
AK
1727 /* force the input stream PTS */
1728 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1729 audio_size += pkt->size;
1730 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1731 video_size += pkt->size;
1732 ost->sync_opts++;
1733 }
1734
7204ec1a
AK
1735 if (pkt->pts != AV_NOPTS_VALUE)
1736 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1737 else
1738 opkt.pts = AV_NOPTS_VALUE;
1739
1740 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1741 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1742 else
1743 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1744 opkt.dts -= ost_tb_start_time;
1745
1746 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1747 opkt.flags = pkt->flags;
1748
7636c8c6
AD
1749 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1750 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1751 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1752 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1753 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1754 ) {
1755 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1756 opkt.destruct = av_destruct_packet;
1757 } else {
1758 opkt.data = pkt->data;
1759 opkt.size = pkt->size;
1760 }
1761
f15f02c2 1762 write_frame(of->ctx, &opkt, ost);
7204ec1a 1763 ost->st->codec->frame_number++;
7204ec1a
AK
1764 av_free_packet(&opkt);
1765}
1766
2a651b71
AK
1767static void rate_emu_sleep(InputStream *ist)
1768{
1769 if (input_files[ist->file_index].rate_emu) {
23576b3f 1770 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1771 int64_t now = av_gettime() - ist->start;
1772 if (pts > now)
1773 usleep(pts - now);
1774 }
1775}
1776
ded28ba3
AK
1777static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1778{
d1241ff3
JR
1779 AVFrame *decoded_frame;
1780 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1781 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
ded28ba3
AK
1782 int i, ret;
1783
9179f27c 1784 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1785 return AVERROR(ENOMEM);
9179f27c
JR
1786 else
1787 avcodec_get_frame_defaults(ist->decoded_frame);
1788 decoded_frame = ist->decoded_frame;
ded28ba3 1789
d1241ff3
JR
1790 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1791 if (ret < 0) {
ded28ba3 1792 return ret;
d1241ff3 1793 }
ded28ba3 1794
ded28ba3
AK
1795 if (!*got_output) {
1796 /* no audio frame */
af8ad892 1797 return ret;
ded28ba3
AK
1798 }
1799
d1241ff3
JR
1800 /* if the decoder provides a pts, use it instead of the last packet pts.
1801 the decoder could be delaying output by a packet or more. */
1802 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1803 ist->next_dts = decoded_frame->pts;
d1241ff3 1804
3101bb66 1805 /* increment next_dts to use for the case where the input stream does not
d1241ff3 1806 have timestamps or there are multiple frames in the packet */
3101bb66 1807 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
d1241ff3 1808 avctx->sample_rate;
ded28ba3
AK
1809
1810 // preprocess audio (volume)
1811 if (audio_volume != 256) {
d1241ff3
JR
1812 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1813 void *samples = decoded_frame->data[0];
1814 switch (avctx->sample_fmt) {
ded28ba3
AK
1815 case AV_SAMPLE_FMT_U8:
1816 {
1817 uint8_t *volp = samples;
1818 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1819 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1820 *volp++ = av_clip_uint8(v);
1821 }
1822 break;
1823 }
1824 case AV_SAMPLE_FMT_S16:
1825 {
1826 int16_t *volp = samples;
1827 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1828 int v = ((*volp) * audio_volume + 128) >> 8;
1829 *volp++ = av_clip_int16(v);
1830 }
1831 break;
1832 }
1833 case AV_SAMPLE_FMT_S32:
1834 {
1835 int32_t *volp = samples;
1836 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1837 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1838 *volp++ = av_clipl_int32(v);
1839 }
1840 break;
1841 }
1842 case AV_SAMPLE_FMT_FLT:
1843 {
1844 float *volp = samples;
1845 float scale = audio_volume / 256.f;
1846 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1847 *volp++ *= scale;
1848 }
1849 break;
1850 }
1851 case AV_SAMPLE_FMT_DBL:
1852 {
1853 double *volp = samples;
1854 double scale = audio_volume / 256.;
1855 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1856 *volp++ *= scale;
1857 }
1858 break;
1859 }
1860 default:
1861 av_log(NULL, AV_LOG_FATAL,
1862 "Audio volume adjustment on sample format %s is not supported.\n",
1863 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1864 exit_program(1);
1865 }
1866 }
1867
1868 rate_emu_sleep(ist);
1869
1870 for (i = 0; i < nb_output_streams; i++) {
1871 OutputStream *ost = &output_streams[i];
1872
1873 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1874 continue;
d1241ff3 1875 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
ded28ba3 1876 }
110d2af2 1877
af8ad892 1878 return ret;
ded28ba3
AK
1879}
1880
45d4b66f
AK
1881static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1882{
1883 AVFrame *decoded_frame, *filtered_frame = NULL;
1884 void *buffer_to_free = NULL;
1885 int i, ret = 0;
1886 float quality;
45d4b66f 1887 int frame_available = 1;
45d4b66f 1888
9179f27c 1889 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 1890 return AVERROR(ENOMEM);
9179f27c
JR
1891 else
1892 avcodec_get_frame_defaults(ist->decoded_frame);
1893 decoded_frame = ist->decoded_frame;
45d4b66f 1894 pkt->pts = *pkt_pts;
23576b3f 1895 pkt->dts = ist->last_dts;
45d4b66f
AK
1896 *pkt_pts = AV_NOPTS_VALUE;
1897
1898 ret = avcodec_decode_video2(ist->st->codec,
1899 decoded_frame, got_output, pkt);
1900 if (ret < 0)
9179f27c 1901 return ret;
45d4b66f
AK
1902
1903 quality = same_quant ? decoded_frame->quality : 0;
1904 if (!*got_output) {
1905 /* no picture yet */
af8ad892 1906 return ret;
45d4b66f 1907 }
b34856a1
AK
1908 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1909 decoded_frame->pkt_dts);
45d4b66f
AK
1910 pkt->size = 0;
1911 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1912
1913 rate_emu_sleep(ist);
1914
695ec04e
AK
1915 if (ist->st->sample_aspect_ratio.num)
1916 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1917
45d4b66f
AK
1918 for (i = 0; i < nb_output_streams; i++) {
1919 OutputStream *ost = &output_streams[i];
ac646076 1920 int frame_size, resample_changed;
45d4b66f
AK
1921
1922 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1923 continue;
1924
ac646076
AK
1925 resample_changed = ost->resample_width != decoded_frame->width ||
1926 ost->resample_height != decoded_frame->height ||
1927 ost->resample_pix_fmt != decoded_frame->format;
1928 if (resample_changed) {
1929 av_log(NULL, AV_LOG_INFO,
1930 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1931 ist->file_index, ist->st->index,
1932 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1933 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1934
1935 avfilter_graph_free(&ost->graph);
1936 if (configure_video_filters(ist, ost)) {
1937 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1938 exit_program(1);
1939 }
1940
1941 ost->resample_width = decoded_frame->width;
1942 ost->resample_height = decoded_frame->height;
1943 ost->resample_pix_fmt = decoded_frame->format;
1944 }
1945
04a14d4d
AK
1946 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1947 FrameBuffer *buf = decoded_frame->opaque;
1948 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1949 decoded_frame->data, decoded_frame->linesize,
1950 AV_PERM_READ | AV_PERM_PRESERVE,
1951 ist->st->codec->width, ist->st->codec->height,
1952 ist->st->codec->pix_fmt);
1953
1954 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
1955 fb->buf->priv = buf;
1956 fb->buf->free = filter_release_buffer;
1957
1958 buf->refcount++;
1959 av_buffersrc_buffer(ost->input_video_filter, fb);
1960 } else
1961 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
6e983902 1962 decoded_frame->pts, decoded_frame->sample_aspect_ratio);
04a14d4d
AK
1963
1964 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
ce326c11
AK
1965 ret = AVERROR(ENOMEM);
1966 goto fail;
04a14d4d
AK
1967 } else
1968 avcodec_get_frame_defaults(ist->filtered_frame);
1969 filtered_frame = ist->filtered_frame;
1970
1971 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
45d4b66f 1972 while (frame_available) {
b6c4518a 1973 AVFilterBufferRef *picref;
45d4b66f 1974 AVRational ist_pts_tb;
ce326c11 1975 if ((ret = get_filtered_video_frame(ost->output_video_filter,
b6c4518a 1976 filtered_frame, &picref,
ce326c11
AK
1977 &ist_pts_tb)) < 0)
1978 goto fail;
b6c4518a 1979 filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
25142298 1980 if (!ost->frame_aspect_ratio)
b6c4518a 1981 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
45d4b66f 1982
d4936548 1983 do_video_out(output_files[ost->file_index].ctx, ost, filtered_frame, &frame_size,
45d4b66f
AK
1984 same_quant ? quality : ost->st->codec->global_quality);
1985 if (vstats_filename && frame_size)
1986 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
45d4b66f 1987 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
b6c4518a 1988 avfilter_unref_buffer(picref);
45d4b66f 1989 }
45d4b66f
AK
1990 }
1991
ce326c11 1992fail:
45d4b66f 1993 av_free(buffer_to_free);
45d4b66f
AK
1994 return ret;
1995}
1996
9595234c
AK
1997static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1998{
1999 AVSubtitle subtitle;
2000 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2001 &subtitle, got_output, pkt);
2002 if (ret < 0)
2003 return ret;
2004 if (!*got_output)
af8ad892 2005 return ret;
9595234c
AK
2006
2007 rate_emu_sleep(ist);
2008
2009 for (i = 0; i < nb_output_streams; i++) {
2010 OutputStream *ost = &output_streams[i];
2011
2012 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2013 continue;
2014
2015 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2016 }
2017
2018 avsubtitle_free(&subtitle);
af8ad892 2019 return ret;
9595234c
AK
2020}
2021
6291d7e4 2022/* pkt = NULL means EOF (needed to flush decoder buffers) */
06d4e2fa 2023static int output_packet(InputStream *ist,
4288e031 2024 OutputStream *ost_table, int nb_ostreams,
6291d7e4
AK
2025 const AVPacket *pkt)
2026{
ffa0674e 2027 int i;
6291d7e4 2028 int got_output;
6291d7e4 2029 int64_t pkt_pts = AV_NOPTS_VALUE;
6291d7e4 2030 AVPacket avpkt;
6291d7e4 2031
3101bb66 2032 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2033 ist->next_dts = ist->last_dts;
6291d7e4
AK
2034
2035 if (pkt == NULL) {
2036 /* EOF handling */
2037 av_init_packet(&avpkt);
2038 avpkt.data = NULL;
2039 avpkt.size = 0;
2040 goto handle_eof;
2041 } else {
2042 avpkt = *pkt;
2043 }
2044
7636c8c6 2045 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2046 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
7636c8c6 2047 if (pkt->pts != AV_NOPTS_VALUE)
6291d7e4
AK
2048 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2049
7636c8c6 2050 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2051 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2052 int ret = 0;
6291d7e4 2053 handle_eof:
6291d7e4 2054
23576b3f 2055 ist->last_dts = ist->next_dts;
8b0268a8
AK
2056
2057 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2058 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2059 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2060 ist->showed_multi_packet_warning = 1;
2061 }
6291d7e4 2062
7636c8c6 2063 switch (ist->st->codec->codec_type) {
82963f8f
AK
2064 case AVMEDIA_TYPE_AUDIO:
2065 ret = transcode_audio (ist, &avpkt, &got_output);
2066 break;
2067 case AVMEDIA_TYPE_VIDEO:
2068 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
b34856a1
AK
2069 if (avpkt.duration)
2070 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
722410ad
AK
2071 else if (ist->st->r_frame_rate.num)
2072 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2073 ist->st->r_frame_rate.num},
2074 AV_TIME_BASE_Q);
b34856a1
AK
2075 else if (ist->st->codec->time_base.num != 0) {
2076 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2077 ist->st->codec->ticks_per_frame;
2078 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2079 }
82963f8f
AK
2080 break;
2081 case AVMEDIA_TYPE_SUBTITLE:
2082 ret = transcode_subtitles(ist, &avpkt, &got_output);
2083 break;
78162b4e
AK
2084 default:
2085 return -1;
2086 }
6291d7e4 2087
d3c1d37a
AK
2088 if (ret < 0)
2089 return ret;
aa38cff2
JG
2090 // touch data and size only if not EOF
2091 if (pkt) {
2092 avpkt.data += ret;
2093 avpkt.size -= ret;
2094 }
82963f8f 2095 if (!got_output) {
af8ad892 2096 continue;
82963f8f 2097 }
6291d7e4 2098 }
6291d7e4 2099
7204ec1a 2100 /* handle stream copy */
2a651b71
AK
2101 if (!ist->decoding_needed) {
2102 rate_emu_sleep(ist);
23576b3f 2103 ist->last_dts = ist->next_dts;
2a651b71
AK
2104 switch (ist->st->codec->codec_type) {
2105 case AVMEDIA_TYPE_AUDIO:
3101bb66 2106 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2107 ist->st->codec->sample_rate;
2108 break;
2109 case AVMEDIA_TYPE_VIDEO:
2110 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2111 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2112 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2113 ist->st->codec->time_base.num * ticks) /
2114 ist->st->codec->time_base.den;
2115 }
2116 break;
2117 }
2118 }
7204ec1a 2119 for (i = 0; pkt && i < nb_ostreams; i++) {
ffa0674e 2120 OutputStream *ost = &ost_table[i];
7204ec1a
AK
2121
2122 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2123 continue;
2124
2125 do_streamcopy(ist, ost, pkt);
2126 }
2127
6291d7e4
AK
2128 return 0;
2129}
2130
af70aa45 2131static void print_sdp(OutputFile *output_files, int n)
6291d7e4
AK
2132{
2133 char sdp[2048];
af70aa45 2134 int i;
7636c8c6 2135 AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
af70aa45
AK
2136
2137 if (!avc)
2138 exit_program(1);
2139 for (i = 0; i < n; i++)
2140 avc[i] = output_files[i].ctx;
6291d7e4
AK
2141
2142 av_sdp_create(avc, n, sdp, sizeof(sdp));
2143 printf("SDP:\n%s\n", sdp);
2144 fflush(stdout);
af70aa45 2145 av_freep(&avc);
6291d7e4
AK
2146}
2147
d3c59d50
JR
2148static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
2149{
2150 char layout_name[256];
2151 AVCodecContext *enc = ost->st->codec;
2152 AVCodecContext *dec = ist->st->codec;
2153
2154 if (!dec->channel_layout) {
2155 if (enc->channel_layout && dec->channels == enc->channels) {
2156 dec->channel_layout = enc->channel_layout;
2157 } else {
2158 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2159
2160 if (!dec->channel_layout) {
2161 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2162 "layout for Input Stream #%d.%d\n", ist->file_index,
2163 ist->st->index);
2164 exit_program(1);
2165 }
2166 }
2167 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2168 dec->channels, dec->channel_layout);
2169 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2170 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2171 }
2172 if (!enc->channel_layout) {
2173 if (dec->channels == enc->channels) {
2174 enc->channel_layout = dec->channel_layout;
2175 return;
2176 } else {
2177 enc->channel_layout = av_get_default_channel_layout(enc->channels);
2178 }
2179 if (!enc->channel_layout) {
2180 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
2181 "for Output Stream #%d.%d\n", ost->file_index,
2182 ost->st->index);
2183 exit_program(1);
2184 }
2185 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2186 enc->channels, enc->channel_layout);
2187 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
2188 "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
2189 }
2190}
2191
2192
630902a1
AK
2193static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2194 char *error, int error_len)
2195{
2196 int i;
2197 InputStream *ist = &input_streams[ist_index];
2198 if (ist->decoding_needed) {
2199 AVCodec *codec = ist->dec;
630902a1 2200 if (!codec) {
9a414d89 2201 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2202 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2203 return AVERROR(EINVAL);
2204 }
2205
2206 /* update requested sample format for the decoder based on the
2207 corresponding encoder sample format */
2208 for (i = 0; i < nb_output_streams; i++) {
2209 OutputStream *ost = &output_streams[i];
2210 if (ost->source_index == ist_index) {
2211 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2212 break;
2213 }
2214 }
2215
64dca32c
AK
2216 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2217 ist->st->codec->get_buffer = codec_get_buffer;
2218 ist->st->codec->release_buffer = codec_release_buffer;
2219 ist->st->codec->opaque = ist;
2220 }
2221
2473a45c
JG
2222 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2223 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2224 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2225 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2226 ist->file_index, ist->st->index);
2227 return AVERROR(EINVAL);
2228 }
2229 assert_codec_experimental(ist->st->codec, 0);
2230 assert_avoptions(ist->opts);
d3c59d50
JR
2231
2232 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2233 for (i = 0; i < nb_output_streams; i++) {
2234 OutputStream *ost = &output_streams[i];
2235 if (ost->source_index == ist_index) {
2236 if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
2237 get_default_channel_layouts(ost, ist);
2238 break;
2239 }
2240 }
2241 }
630902a1
AK
2242 }
2243
23576b3f 2244 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 2245 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2246 init_pts_correction(&ist->pts_ctx);
2247 ist->is_start = 1;
2248
2249 return 0;
2250}
2251
eaf2d37a
AC
2252static int transcode_init(OutputFile *output_files,
2253 int nb_output_files,
2254 InputFile *input_files,
2255 int nb_input_files)
6291d7e4 2256{
2c474ddb 2257 int ret = 0, i, j, k;
1bb77e51 2258 AVFormatContext *oc;
6291d7e4 2259 AVCodecContext *codec, *icodec;
4288e031 2260 OutputStream *ost;
6291d7e4
AK
2261 InputStream *ist;
2262 char error[1024];
2263 int want_sdp = 1;
b0c9e8e0 2264
f4805328
AK
2265 /* init framerate emulation */
2266 for (i = 0; i < nb_input_files; i++) {
2267 InputFile *ifile = &input_files[i];
2268 if (ifile->rate_emu)
2269 for (j = 0; j < ifile->nb_streams; j++)
2270 input_streams[j + ifile->ist_index].start = av_gettime();
2271 }
6291d7e4
AK
2272
2273 /* output stream init */
03f30c83 2274 for (i = 0; i < nb_output_files; i++) {
1bb77e51
AK
2275 oc = output_files[i].ctx;
2276 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2277 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2278 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2279 return AVERROR(EINVAL);
6291d7e4 2280 }
6291d7e4
AK
2281 }
2282
2283 /* for each output stream, we compute the right encoding parameters */
4288e031
AK
2284 for (i = 0; i < nb_output_streams; i++) {
2285 ost = &output_streams[i];
03f30c83 2286 oc = output_files[ost->file_index].ctx;
6291d7e4
AK
2287 ist = &input_streams[ost->source_index];
2288
4dbc6cee
AK
2289 if (ost->attachment_filename)
2290 continue;
2291
03f30c83 2292 codec = ost->st->codec;
6291d7e4
AK
2293 icodec = ist->st->codec;
2294
03f30c83
AK
2295 ost->st->disposition = ist->st->disposition;
2296 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
6291d7e4
AK
2297 codec->chroma_sample_location = icodec->chroma_sample_location;
2298
3d813e4c 2299 if (ost->stream_copy) {
6291d7e4
AK
2300 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2301
e6d2b737 2302 if (extra_size > INT_MAX) {
eaf2d37a 2303 return AVERROR(EINVAL);
e6d2b737 2304 }
6291d7e4
AK
2305
2306 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2307 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2308 codec->codec_type = icodec->codec_type;
2309
03f30c83
AK
2310 if (!codec->codec_tag) {
2311 if (!oc->oformat->codec_tag ||
2312 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2313 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2314 codec->codec_tag = icodec->codec_tag;
2315 }
2316
03f30c83 2317 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2318 codec->rc_max_rate = icodec->rc_max_rate;
2319 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2320 codec->field_order = icodec->field_order;
03f30c83 2321 codec->extradata = av_mallocz(extra_size);
e6d2b737 2322 if (!codec->extradata) {
eaf2d37a 2323 return AVERROR(ENOMEM);
e6d2b737 2324 }
6291d7e4 2325 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2326 codec->extradata_size = icodec->extradata_size;
7bb3e625 2327 if (!copy_tb) {
03f30c83 2328 codec->time_base = icodec->time_base;
6291d7e4
AK
2329 codec->time_base.num *= icodec->ticks_per_frame;
2330 av_reduce(&codec->time_base.num, &codec->time_base.den,
2331 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2332 } else
6291d7e4 2333 codec->time_base = ist->st->time_base;
03f30c83 2334
7636c8c6 2335 switch (codec->codec_type) {
6291d7e4 2336 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2337 if (audio_volume != 256) {
e3245b26 2338 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2339 exit_program(1);
2340 }
03f30c83
AK
2341 codec->channel_layout = icodec->channel_layout;
2342 codec->sample_rate = icodec->sample_rate;
2343 codec->channels = icodec->channels;
2344 codec->frame_size = icodec->frame_size;
6291d7e4 2345 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2346 codec->block_align = icodec->block_align;
6291d7e4
AK
2347 break;
2348 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2349 codec->pix_fmt = icodec->pix_fmt;
2350 codec->width = icodec->width;
2351 codec->height = icodec->height;
2352 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2353 if (!codec->sample_aspect_ratio.num) {
03f30c83 2354 codec->sample_aspect_ratio =
6291d7e4
AK
2355 ost->st->sample_aspect_ratio =
2356 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2357 ist->st->codec->sample_aspect_ratio.num ?
2358 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2359 }
2360 break;
2361 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2362 codec->width = icodec->width;
6291d7e4
AK
2363 codec->height = icodec->height;
2364 break;
2365 case AVMEDIA_TYPE_DATA:
3ccd1580 2366 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2367 break;
2368 default:
2369 abort();
2370 }
2371 } else {
2372 if (!ost->enc)
2373 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
03f30c83 2374
11fdb7e1
AK
2375 ist->decoding_needed = 1;
2376 ost->encoding_needed = 1;
03f30c83 2377
7636c8c6 2378 switch (codec->codec_type) {
6291d7e4 2379 case AVMEDIA_TYPE_AUDIO:
03f30c83 2380 ost->fifo = av_fifo_alloc(1024);
e6d2b737 2381 if (!ost->fifo) {
eaf2d37a 2382 return AVERROR(ENOMEM);
e6d2b737 2383 }
6291d7e4 2384 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
03f30c83 2385
d0a19696 2386 if (!codec->sample_rate)
6291d7e4 2387 codec->sample_rate = icodec->sample_rate;
6291d7e4 2388 choose_sample_rate(ost->st, ost->enc);
7636c8c6 2389 codec->time_base = (AVRational){ 1, codec->sample_rate };
03f30c83 2390
6291d7e4
AK
2391 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2392 codec->sample_fmt = icodec->sample_fmt;
2393 choose_sample_fmt(ost->st, ost->enc);
03f30c83 2394
6291d7e4
AK
2395 if (!codec->channels)
2396 codec->channels = icodec->channels;
2397 codec->channel_layout = icodec->channel_layout;
2398 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2399 codec->channel_layout = 0;
03f30c83
AK
2400
2401 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2402 icodec->request_channels = codec-> channels;
6291d7e4
AK
2403 ost->resample_sample_fmt = icodec->sample_fmt;
2404 ost->resample_sample_rate = icodec->sample_rate;
2405 ost->resample_channels = icodec->channels;
2406 break;
2407 case AVMEDIA_TYPE_VIDEO:
2408 if (codec->pix_fmt == PIX_FMT_NONE)
2409 codec->pix_fmt = icodec->pix_fmt;
2410 choose_pixel_fmt(ost->st, ost->enc);
2411
2412 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
e3245b26 2413 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
6291d7e4
AK
2414 exit_program(1);
2415 }
2416
2417 if (!codec->width || !codec->height) {
2418 codec->width = icodec->width;
2419 codec->height = icodec->height;
2420 }
2421
2422 ost->video_resample = codec->width != icodec->width ||
2423 codec->height != icodec->height ||
2424 codec->pix_fmt != icodec->pix_fmt;
2425 if (ost->video_resample) {
7636c8c6 2426 codec->bits_per_raw_sample = 0;
6291d7e4
AK
2427 }
2428
03f30c83
AK
2429 ost->resample_height = icodec->height;
2430 ost->resample_width = icodec->width;
2431 ost->resample_pix_fmt = icodec->pix_fmt;
6291d7e4 2432
832ba44d
AK
2433 /*
2434 * We want CFR output if and only if one of those is true:
2435 * 1) user specified output framerate with -r
2436 * 2) user specified -vsync cfr
2437 * 3) output format is CFR and the user didn't force vsync to
2438 * something else than CFR
2439 *
2440 * in such a case, set ost->frame_rate
2441 */
2442 if (!ost->frame_rate.num &&
2443 (video_sync_method == VSYNC_CFR ||
2444 (video_sync_method == VSYNC_AUTO &&
2445 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2446 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2447 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2448 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2449 ost->frame_rate = ost->enc->supported_framerates[idx];
2450 }
6291d7e4 2451 }
832ba44d
AK
2452 if (ost->frame_rate.num) {
2453 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2454 video_sync_method = VSYNC_CFR;
2455 } else
2456 codec->time_base = ist->st->time_base;
6291d7e4 2457
6291d7e4 2458 if (configure_video_filters(ist, ost)) {
e3245b26 2459 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
6291d7e4
AK
2460 exit(1);
2461 }
6291d7e4
AK
2462 break;
2463 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2464 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2465 break;
2466 default:
2467 abort();
2468 break;
2469 }
2470 /* two pass mode */
515901fa 2471 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2472 char logfilename[1024];
2473 FILE *f;
2474
2475 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2476 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2477 i);
6e8be949
AK
2478 if (!strcmp(ost->enc->name, "libx264")) {
2479 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2480 } else {
64334ddb
AK
2481 if (codec->flags & CODEC_FLAG_PASS1) {
2482 f = fopen(logfilename, "wb");
2483 if (!f) {
2484 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2485 logfilename, strerror(errno));
2486 exit_program(1);
2487 }
2488 ost->logfile = f;
2489 } else {
2490 char *logbuffer;
2491 size_t logbuffer_size;
2492 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2493 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2494 logfilename);
2495 exit_program(1);
2496 }
2497 codec->stats_in = logbuffer;
6291d7e4 2498 }
6e8be949 2499 }
6291d7e4
AK
2500 }
2501 }
6291d7e4
AK
2502 }
2503
2504 /* open each encoder */
4288e031
AK
2505 for (i = 0; i < nb_output_streams; i++) {
2506 ost = &output_streams[i];
6291d7e4 2507 if (ost->encoding_needed) {
03f30c83 2508 AVCodec *codec = ost->enc;
6291d7e4
AK
2509 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2510 if (!codec) {
9a414d89 2511 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
6291d7e4
AK
2512 ost->st->codec->codec_id, ost->file_index, ost->index);
2513 ret = AVERROR(EINVAL);
2514 goto dump_format;
2515 }
2516 if (dec->subtitle_header) {
2517 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2518 if (!ost->st->codec->subtitle_header) {
2519 ret = AVERROR(ENOMEM);
2520 goto dump_format;
2521 }
2522 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2523 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2524 }
2473a45c
JG
2525 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2526 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2527 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2528 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
2529 ost->file_index, ost->index);
2530 ret = AVERROR(EINVAL);
2531 goto dump_format;
2532 }
2533 assert_codec_experimental(ost->st->codec, 1);
2534 assert_avoptions(ost->opts);
2535 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2536 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2537 "It takes bits/s as argument, not kbits/s\n");
2538 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2539
2540 if (ost->st->codec->me_threshold)
2541 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2542 }
2543 }
2544
630902a1
AK
2545 /* init input streams */
2546 for (i = 0; i < nb_input_streams; i++)
62486948 2547 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
630902a1 2548 goto dump_format;
6291d7e4 2549
2c474ddb
AK
2550 /* discard unused programs */
2551 for (i = 0; i < nb_input_files; i++) {
2552 InputFile *ifile = &input_files[i];
2553 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2554 AVProgram *p = ifile->ctx->programs[j];
2555 int discard = AVDISCARD_ALL;
2556
2557 for (k = 0; k < p->nb_stream_indexes; k++)
2558 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2559 discard = AVDISCARD_DEFAULT;
2560 break;
2561 }
2562 p->discard = discard;
2563 }
2564 }
2565
6291d7e4 2566 /* open files and write file headers */
af70aa45 2567 for (i = 0; i < nb_output_files; i++) {
1bb77e51
AK
2568 oc = output_files[i].ctx;
2569 oc->interrupt_callback = int_cb;
2570 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
6291d7e4
AK
2571 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2572 ret = AVERROR(EINVAL);
2573 goto dump_format;
2574 }
af70aa45 2575 assert_avoptions(output_files[i].opts);
1bb77e51 2576 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2577 want_sdp = 0;
2578 }
2579 }
2580
2581 dump_format:
2582 /* dump the file output parameters - cannot be done before in case
2583 of stream copy */
03f30c83 2584 for (i = 0; i < nb_output_files; i++) {
af70aa45 2585 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
6291d7e4
AK
2586 }
2587
2588 /* dump the stream mapping */
e3245b26
AK
2589 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2590 for (i = 0; i < nb_output_streams; i++) {
2591 ost = &output_streams[i];
4dbc6cee
AK
2592
2593 if (ost->attachment_filename) {
2594 /* an attached file */
2595 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2596 ost->attachment_filename, ost->file_index, ost->index);
2597 continue;
2598 }
9a414d89 2599 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
e3245b26
AK
2600 input_streams[ost->source_index].file_index,
2601 input_streams[ost->source_index].st->index,
2602 ost->file_index,
2603 ost->index);
2604 if (ost->sync_ist != &input_streams[ost->source_index])
9a414d89 2605 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2606 ost->sync_ist->file_index,
2607 ost->sync_ist->st->index);
3d813e4c 2608 if (ost->stream_copy)
e3245b26
AK
2609 av_log(NULL, AV_LOG_INFO, " (copy)");
2610 else
2611 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2612 input_streams[ost->source_index].dec->name : "?",
2613 ost->enc ? ost->enc->name : "?");
2614 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2615 }
2616
2617 if (ret) {
e3245b26 2618 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2619 return ret;
6291d7e4
AK
2620 }
2621
2622 if (want_sdp) {
2623 print_sdp(output_files, nb_output_files);
2624 }
2625
eaf2d37a
AC
2626 return 0;
2627}
2628
2629/*
2630 * The following code is the main loop of the file converter
2631 */
2632static int transcode(OutputFile *output_files,
2633 int nb_output_files,
2634 InputFile *input_files,
2635 int nb_input_files)
2636{
2637 int ret, i;
2638 AVFormatContext *is, *os;
2639 OutputStream *ost;
2640 InputStream *ist;
2641 uint8_t *no_packet;
7636c8c6 2642 int no_packet_count = 0;
eaf2d37a
AC
2643 int64_t timer_start;
2644
2645 if (!(no_packet = av_mallocz(nb_input_files)))
2646 exit_program(1);
2647
2648 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2649 if (ret < 0)
2650 goto fail;
2651
e3245b26 2652 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2653 term_init();
2654
2655 timer_start = av_gettime();
2656
7636c8c6 2657 for (; received_sigterm == 0;) {
6291d7e4
AK
2658 int file_index, ist_index;
2659 AVPacket pkt;
9be3c124 2660 int64_t ipts_min;
6291d7e4
AK
2661 double opts_min;
2662
9be3c124 2663 ipts_min = INT64_MAX;
7636c8c6 2664 opts_min = 1e100;
6291d7e4
AK
2665
2666 /* select the stream that we must read now by looking at the
2667 smallest output pts */
2668 file_index = -1;
4288e031 2669 for (i = 0; i < nb_output_streams; i++) {
f21f294e 2670 OutputFile *of;
9be3c124
AC
2671 int64_t ipts;
2672 double opts;
4288e031 2673 ost = &output_streams[i];
f21f294e 2674 of = &output_files[ost->file_index];
af70aa45 2675 os = output_files[ost->file_index].ctx;
6291d7e4 2676 ist = &input_streams[ost->source_index];
f21f294e
AK
2677 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2678 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
6291d7e4 2679 continue;
c0931508 2680 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
23576b3f 2681 ipts = ist->last_dts;
7636c8c6
AD
2682 if (!input_files[ist->file_index].eof_reached) {
2683 if (ipts < ipts_min) {
6291d7e4 2684 ipts_min = ipts;
7636c8c6
AD
2685 if (input_sync)
2686 file_index = ist->file_index;
6291d7e4 2687 }
7636c8c6 2688 if (opts < opts_min) {
6291d7e4 2689 opts_min = opts;
7636c8c6 2690 if (!input_sync) file_index = ist->file_index;
6291d7e4
AK
2691 }
2692 }
96139b5e
AK
2693 if (ost->frame_number >= ost->max_frames) {
2694 int j;
9b921a82
AK
2695 for (j = 0; j < of->ctx->nb_streams; j++)
2696 output_streams[of->ost_index + j].is_past_recording_time = 1;
96139b5e 2697 continue;
6291d7e4
AK
2698 }
2699 }
2700 /* if none, if is finished */
2701 if (file_index < 0) {
7636c8c6
AD
2702 if (no_packet_count) {
2703 no_packet_count = 0;
b0c9e8e0 2704 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2705 usleep(10000);
2706 continue;
2707 }
2708 break;
2709 }
2710
6291d7e4 2711 /* read a frame from it and output it in the fifo */
7636c8c6
AD
2712 is = input_files[file_index].ctx;
2713 ret = av_read_frame(is, &pkt);
2714 if (ret == AVERROR(EAGAIN)) {
2715 no_packet[file_index] = 1;
6291d7e4
AK
2716 no_packet_count++;
2717 continue;
2718 }
2719 if (ret < 0) {
2720 input_files[file_index].eof_reached = 1;
2721 if (opt_shortest)
2722 break;
2723 else
2724 continue;
2725 }
2726
7636c8c6 2727 no_packet_count = 0;
b0c9e8e0 2728 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2729
2730 if (do_pkt_dump) {
2731 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2732 is->streams[pkt.stream_index]);
2733 }
2734 /* the following test is needed in case new streams appear
2735 dynamically in stream : we ignore them */
ed5b1326 2736 if (pkt.stream_index >= input_files[file_index].nb_streams)
6291d7e4
AK
2737 goto discard_packet;
2738 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2739 ist = &input_streams[ist_index];
2740 if (ist->discard)
2741 goto discard_packet;
2742
2743 if (pkt.dts != AV_NOPTS_VALUE)
2744 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2745 if (pkt.pts != AV_NOPTS_VALUE)
2746 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2747
7636c8c6 2748 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 2749 pkt.pts *= ist->ts_scale;
7636c8c6 2750 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 2751 pkt.dts *= ist->ts_scale;
6291d7e4 2752
7636c8c6 2753 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 2754 // ist->next_dts,
7636c8c6
AD
2755 // pkt.dts, input_files[ist->file_index].ts_offset,
2756 // ist->st->codec->codec_type);
3101bb66 2757 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 2758 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 2759 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 2760 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 2761 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
6291d7e4 2762 input_files[ist->file_index].ts_offset -= delta;
7636c8c6
AD
2763 av_log(NULL, AV_LOG_DEBUG,
2764 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
e3245b26 2765 delta, input_files[ist->file_index].ts_offset);
6291d7e4 2766 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 2767 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
2768 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2769 }
2770 }
2771
7636c8c6 2772 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
06d4e2fa 2773 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
6291d7e4 2774
9a414d89 2775 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 2776 ist->file_index, ist->st->index);
6291d7e4
AK
2777 if (exit_on_error)
2778 exit_program(1);
2779 av_free_packet(&pkt);
b9630bcf 2780 continue;
6291d7e4
AK
2781 }
2782
2783 discard_packet:
2784 av_free_packet(&pkt);
2785
2786 /* dump report by using the output first video and audio streams */
c5ad2c2c 2787 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
6291d7e4
AK
2788 }
2789
2790 /* at the end of stream, we must flush the decoder buffers */
2791 for (i = 0; i < nb_input_streams; i++) {
2792 ist = &input_streams[i];
2793 if (ist->decoding_needed) {
06d4e2fa 2794 output_packet(ist, output_streams, nb_output_streams, NULL);
6291d7e4
AK
2795 }
2796 }
b62b5cb6 2797 flush_encoders(output_streams, nb_output_streams);
6291d7e4
AK
2798
2799 term_exit();
2800
2801 /* write the trailer if needed and close file */
7636c8c6 2802 for (i = 0; i < nb_output_files; i++) {
af70aa45 2803 os = output_files[i].ctx;
6291d7e4
AK
2804 av_write_trailer(os);
2805 }
2806
2807 /* dump report by using the first video and audio streams */
c5ad2c2c 2808 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
6291d7e4
AK
2809
2810 /* close each encoder */
4288e031
AK
2811 for (i = 0; i < nb_output_streams; i++) {
2812 ost = &output_streams[i];
6291d7e4
AK
2813 if (ost->encoding_needed) {
2814 av_freep(&ost->st->codec->stats_in);
2815 avcodec_close(ost->st->codec);
2816 }
6291d7e4 2817 avfilter_graph_free(&ost->graph);
6291d7e4
AK
2818 }
2819
2820 /* close each decoder */
2821 for (i = 0; i < nb_input_streams; i++) {
2822 ist = &input_streams[i];
2823 if (ist->decoding_needed) {
2824 avcodec_close(ist->st->codec);
2825 }
2826 }
2827
2828 /* finished ! */
2829 ret = 0;
2830
2831 fail:
b0c9e8e0 2832 av_freep(&no_packet);
6291d7e4 2833
4288e031
AK
2834 if (output_streams) {
2835 for (i = 0; i < nb_output_streams; i++) {
2836 ost = &output_streams[i];
6291d7e4 2837 if (ost) {
3d813e4c 2838 if (ost->stream_copy)
6291d7e4
AK
2839 av_freep(&ost->st->codec->extradata);
2840 if (ost->logfile) {
2841 fclose(ost->logfile);
2842 ost->logfile = NULL;
2843 }
2844 av_fifo_free(ost->fifo); /* works even if fifo is not
2845 initialized but set to zero */
2846 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2847 av_free(ost->forced_kf_pts);
6291d7e4
AK
2848 if (ost->resample)
2849 audio_resample_close(ost->resample);
2850 if (ost->reformat_ctx)
2851 av_audio_convert_free(ost->reformat_ctx);
2852 av_dict_free(&ost->opts);
6291d7e4
AK
2853 }
2854 }
6291d7e4
AK
2855 }
2856 return ret;
2857}
2858
ca46fde7 2859static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
2860{
2861 int x = 0, y = 0;
2862 double ar = 0;
2863 const char *p;
2864 char *end;
2865
2866 p = strchr(arg, ':');
2867 if (p) {
2868 x = strtol(arg, &end, 10);
2869 if (end == p)
7636c8c6 2870 y = strtol(end + 1, &end, 10);
6291d7e4
AK
2871 if (x > 0 && y > 0)
2872 ar = (double)x / (double)y;
2873 } else
2874 ar = strtod(arg, NULL);
2875
2876 if (!ar) {
e3245b26 2877 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 2878 exit_program(1);
6291d7e4 2879 }
ca46fde7 2880 return ar;
6291d7e4
AK
2881}
2882
35e6f8c1 2883static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2884{
35e6f8c1 2885 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
2886}
2887
35e6f8c1 2888static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2889{
35e6f8c1 2890 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
2891}
2892
35e6f8c1 2893static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2894{
35e6f8c1 2895 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
2896}
2897
35e6f8c1 2898static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2899{
35e6f8c1 2900 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
2901}
2902
575ec4e1 2903static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2904{
8d2e4a7e
AK
2905 StreamMap *m = NULL;
2906 int i, negative = 0, file_idx;
2907 int sync_file_idx = -1, sync_stream_idx;
2908 char *p, *sync;
2909 char *map;
6291d7e4 2910
8d2e4a7e
AK
2911 if (*arg == '-') {
2912 negative = 1;
2913 arg++;
2914 }
2915 map = av_strdup(arg);
6291d7e4 2916
8d2e4a7e
AK
2917 /* parse sync stream first, just pick first matching stream */
2918 if (sync = strchr(map, ',')) {
2919 *sync = 0;
2920 sync_file_idx = strtol(sync + 1, &sync, 0);
2921 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 2922 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
2923 exit_program(1);
2924 }
2925 if (*sync)
2926 sync++;
ed5b1326 2927 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
8d2e4a7e
AK
2928 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2929 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2930 sync_stream_idx = i;
2931 break;
2932 }
ed5b1326 2933 if (i == input_files[sync_file_idx].nb_streams) {
f24facd3 2934 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
2935 "match any streams.\n", arg);
2936 exit_program(1);
2937 }
2938 }
6291d7e4 2939
8d2e4a7e
AK
2940
2941 file_idx = strtol(map, &p, 0);
2942 if (file_idx >= nb_input_files || file_idx < 0) {
f24facd3 2943 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
8d2e4a7e 2944 exit_program(1);
6291d7e4 2945 }
8d2e4a7e
AK
2946 if (negative)
2947 /* disable some already defined maps */
575ec4e1
AK
2948 for (i = 0; i < o->nb_stream_maps; i++) {
2949 m = &o->stream_maps[i];
e6674f68
AK
2950 if (file_idx == m->file_index &&
2951 check_stream_specifier(input_files[m->file_index].ctx,
8d2e4a7e
AK
2952 input_files[m->file_index].ctx->streams[m->stream_index],
2953 *p == ':' ? p + 1 : p) > 0)
2954 m->disabled = 1;
2955 }
2956 else
ed5b1326 2957 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
8d2e4a7e
AK
2958 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2959 *p == ':' ? p + 1 : p) <= 0)
2960 continue;
575ec4e1
AK
2961 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2962 &o->nb_stream_maps, o->nb_stream_maps + 1);
2963 m = &o->stream_maps[o->nb_stream_maps - 1];
8d2e4a7e
AK
2964
2965 m->file_index = file_idx;
2966 m->stream_index = i;
2967
2968 if (sync_file_idx >= 0) {
2969 m->sync_file_index = sync_file_idx;
2970 m->sync_stream_index = sync_stream_idx;
2971 } else {
2972 m->sync_file_index = file_idx;
2973 m->sync_stream_index = i;
2974 }
2975 }
2976
2977 if (!m) {
f24facd3 2978 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
2979 exit_program(1);
2980 }
2981
2982 av_freep(&map);
6291d7e4
AK
2983 return 0;
2984}
2985
4dbc6cee
AK
2986static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2987{
2988 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2989 &o->nb_attachments, o->nb_attachments + 1);
2990 o->attachments[o->nb_attachments - 1] = arg;
2991 return 0;
2992}
2993
a7b5e841
AK
2994/**
2995 * Parse a metadata specifier in arg.
2996 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2997 * @param index for type c/p, chapter/program index is written here
2998 * @param stream_spec for type s, the stream specifier is written here
2999 */
3000static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 3001{
039267f1 3002 if (*arg) {
a2a38d96 3003 *type = *arg;
6291d7e4
AK
3004 switch (*arg) {
3005 case 'g':
3006 break;
3007 case 's':
a7b5e841
AK
3008 if (*(++arg) && *arg != ':') {
3009 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3010 exit_program(1);
3011 }
3012 *stream_spec = *arg == ':' ? arg + 1 : "";
3013 break;
6291d7e4
AK
3014 case 'c':
3015 case 'p':
e6e6060c
AK
3016 if (*(++arg) == ':')
3017 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3018 break;
3019 default:
e3245b26 3020 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3021 exit_program(1);
3022 }
3023 } else
3024 *type = 'g';
3025}
3026
a7b5e841 3027static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3028{
a7b5e841
AK
3029 AVDictionary **meta_in = NULL;
3030 AVDictionary **meta_out;
3031 int i, ret = 0;
3032 char type_in, type_out;
3033 const char *istream_spec = NULL, *ostream_spec = NULL;
3034 int idx_in = 0, idx_out = 0;
6291d7e4 3035
a7b5e841
AK
3036 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3037 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3038
a7b5e841 3039 if (type_in == 'g' || type_out == 'g')
847529f8 3040 o->metadata_global_manual = 1;
a7b5e841 3041 if (type_in == 's' || type_out == 's')
847529f8 3042 o->metadata_streams_manual = 1;
a7b5e841 3043 if (type_in == 'c' || type_out == 'c')
847529f8 3044 o->metadata_chapters_manual = 1;
6291d7e4 3045
a7b5e841
AK
3046#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3047 if ((index) < 0 || (index) >= (nb_elems)) {\
3048 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3049 (desc), (index));\
3050 exit_program(1);\
3051 }
3052
3053#define SET_DICT(type, meta, context, index)\
3054 switch (type) {\
3055 case 'g':\
3056 meta = &context->metadata;\
3057 break;\
3058 case 'c':\
3059 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3060 meta = &context->chapters[index]->metadata;\
3061 break;\
3062 case 'p':\
3063 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3064 meta = &context->programs[index]->metadata;\
3065 break;\
3066 }\
3067
3068 SET_DICT(type_in, meta_in, ic, idx_in);
3069 SET_DICT(type_out, meta_out, oc, idx_out);
3070
3071 /* for input streams choose first matching stream */
3072 if (type_in == 's') {
3073 for (i = 0; i < ic->nb_streams; i++) {
3074 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3075 meta_in = &ic->streams[i]->metadata;
3076 break;
3077 } else if (ret < 0)
3078 exit_program(1);
3079 }
3080 if (!meta_in) {
3081 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3082 exit_program(1);
3083 }
3084 }
3085
3086 if (type_out == 's') {
3087 for (i = 0; i < oc->nb_streams; i++) {
3088 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3089 meta_out = &oc->streams[i]->metadata;
3090 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3091 } else if (ret < 0)
3092 exit_program(1);
3093 }
3094 } else
3095 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3096
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AK
3097 return 0;
3098}
3099
1b648c7c 3100static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3101{
3102 const char *codec_string = encoder ? "encoder" : "decoder";
3103 AVCodec *codec;
3104
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AK
3105 codec = encoder ?
3106 avcodec_find_encoder_by_name(name) :
3107 avcodec_find_decoder_by_name(name);
7636c8c6 3108 if (!codec) {
f24facd3 3109 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3110 exit_program(1);
3111 }
7636c8c6 3112 if (codec->type != type) {
f24facd3 3113 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3114 exit_program(1);
3115 }
1b648c7c 3116 return codec;
169f0647
AK
3117}
3118
1b648c7c 3119static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3120{
169f0647 3121 char *codec_name = NULL;
169f0647 3122
35e6f8c1 3123 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3124 if (codec_name) {
3125 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3126 st->codec->codec_id = codec->id;
3127 return codec;
3128 } else
3129 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3130}
6291d7e4 3131
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AK
3132/**
3133 * Add all the streams from the given input file to the global
3134 * list of input streams.
3135 */
35e6f8c1 3136static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3137{
c88d5319 3138 int i;
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AK
3139
3140 for (i = 0; i < ic->nb_streams; i++) {
3141 AVStream *st = ic->streams[i];
3142 AVCodecContext *dec = st->codec;
3143 InputStream *ist;
3144
88867844
AK
3145 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3146 ist = &input_streams[nb_input_streams - 1];
3147 ist->st = st;
3148 ist->file_index = nb_input_files;
3149 ist->discard = 1;
13f6917c 3150 st->discard = AVDISCARD_ALL;
88867844
AK
3151 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3152
059fb8c8
AK
3153 ist->ts_scale = 1.0;
3154 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3155
1b648c7c 3156 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3157
3158 switch (dec->codec_type) {
88867844 3159 case AVMEDIA_TYPE_VIDEO:
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AK
3160 if (dec->lowres) {
3161 dec->flags |= CODEC_FLAG_EMU_EDGE;
3162 dec->height >>= dec->lowres;
3163 dec->width >>= dec->lowres;
3164 }
88867844 3165
88867844 3166 break;
13f6917c 3167 case AVMEDIA_TYPE_AUDIO:
88867844 3168 case AVMEDIA_TYPE_DATA:
88867844 3169 case AVMEDIA_TYPE_SUBTITLE:
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AK
3170 case AVMEDIA_TYPE_ATTACHMENT:
3171 case AVMEDIA_TYPE_UNKNOWN:
3172 break;
3173 default:
3174 abort();
3175 }
3176 }
3177}
3178
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AK
3179static void assert_file_overwrite(const char *filename)
3180{
3181 if (!file_overwrite &&
3182 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3183 av_strstart(filename, "file:", NULL))) {
3184 if (avio_check(filename, 0) == 0) {
3185 if (!using_stdin) {
3186 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3187 fflush(stderr);
3188 if (!read_yesno()) {
3189 fprintf(stderr, "Not overwriting - exiting\n");
3190 exit_program(1);
3191 }
3192 }
3193 else {
3194 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3195 exit_program(1);
3196 }
3197 }
3198 }
3199}
3200
3201static void dump_attachment(AVStream *st, const char *filename)
3202{
3203 int ret;
3204 AVIOContext *out = NULL;
3205 AVDictionaryEntry *e;
3206
3207 if (!st->codec->extradata_size) {
3208 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3209 nb_input_files - 1, st->index);
3210 return;
3211 }
3212 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3213 filename = e->value;
3214 if (!*filename) {
3215 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3216 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3217 exit_program(1);
3218 }
3219
3220 assert_file_overwrite(filename);
3221
2abe947a 3222 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3223 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3224 filename);
3225 exit_program(1);
3226 }
3227
3228 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3229 avio_flush(out);
3230 avio_close(out);
3231}
3232
575ec4e1 3233static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3234{
3235 AVFormatContext *ic;
3236 AVInputFormat *file_iformat = NULL;
88867844 3237 int err, i, ret;
6291d7e4
AK
3238 int64_t timestamp;
3239 uint8_t buf[128];
3240 AVDictionary **opts;
3241 int orig_nb_streams; // number of streams before avformat_find_stream_info
3242
7041bb3b
AK
3243 if (o->format) {
3244 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3245 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3246 exit_program(1);
3247 }
6291d7e4
AK
3248 }
3249
3250 if (!strcmp(filename, "-"))
3251 filename = "pipe:";
3252
3253 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3254 !strcmp(filename, "/dev/stdin");
3255
3256 /* get default parameters from command line */
3257 ic = avformat_alloc_context();
3258 if (!ic) {
3259 print_error(filename, AVERROR(ENOMEM));
3260 exit_program(1);
3261 }
e2469ccf
AK
3262 if (o->nb_audio_sample_rate) {
3263 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3264 av_dict_set(&format_opts, "sample_rate", buf, 0);
3265 }
6a11686d
AK
3266 if (o->nb_audio_channels) {
3267 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
6291d7e4
AK
3268 av_dict_set(&format_opts, "channels", buf, 0);
3269 }
91ea4811
AK
3270 if (o->nb_frame_rates) {
3271 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
6291d7e4 3272 }
d4397b03
AK
3273 if (o->nb_frame_sizes) {
3274 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
6291d7e4 3275 }
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AK
3276 if (o->nb_frame_pix_fmts)
3277 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
6291d7e4 3278
6291d7e4 3279 ic->flags |= AVFMT_FLAG_NONBLOCK;
2abe947a 3280 ic->interrupt_callback = int_cb;
6291d7e4
AK
3281
3282 /* open the input file with generic libav function */
3283 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3284 if (err < 0) {
3285 print_error(filename, err);
3286 exit_program(1);
3287 }
3288 assert_avoptions(format_opts);
3289
92f1940e
AK
3290 /* apply forced codec ids */
3291 for (i = 0; i < ic->nb_streams; i++)
1b648c7c 3292 choose_decoder(o, ic, ic->streams[i]);
92f1940e 3293
6291d7e4
AK
3294 /* Set AVCodecContext options for avformat_find_stream_info */
3295 opts = setup_find_stream_info_opts(ic, codec_opts);
3296 orig_nb_streams = ic->nb_streams;
3297
3298 /* If not enough info to get the stream parameters, we decode the
3299 first frames to get it. (used in mpeg case for example) */
3300 ret = avformat_find_stream_info(ic, opts);
e3245b26
AK
3301 if (ret < 0) {
3302 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
cd3716b9 3303 avformat_close_input(&ic);
6291d7e4
AK
3304 exit_program(1);
3305 }
3306
6b779ccc 3307 timestamp = o->start_time;
6291d7e4
AK
3308 /* add the stream start time */
3309 if (ic->start_time != AV_NOPTS_VALUE)
3310 timestamp += ic->start_time;
3311
3312 /* if seeking requested, we execute it */
6b779ccc 3313 if (o->start_time != 0) {
6291d7e4
AK
3314 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3315 if (ret < 0) {
e3245b26
AK
3316 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3317 filename, (double)timestamp / AV_TIME_BASE);
6291d7e4 3318 }
6291d7e4
AK
3319 }
3320
3321 /* update the current parameters so that they match the one of the input stream */
35e6f8c1 3322 add_input_streams(o, ic);
6291d7e4
AK
3323
3324 /* dump the file content */
e3245b26 3325 av_dump_format(ic, nb_input_files, filename, 0);
6291d7e4
AK
3326
3327 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3328 input_files[nb_input_files - 1].ctx = ic;
3329 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
6b779ccc 3330 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
ed5b1326 3331 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
dc3e76f3 3332 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
6291d7e4 3333
a2c0b830
AK
3334 for (i = 0; i < o->nb_dump_attachment; i++) {
3335 int j;
3336
3337 for (j = 0; j < ic->nb_streams; j++) {
3338 AVStream *st = ic->streams[j];
3339
3340 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3341 dump_attachment(st, o->dump_attachment[i].u.str);
3342 }
3343 }
3344
6291d7e4
AK
3345 for (i = 0; i < orig_nb_streams; i++)
3346 av_dict_free(&opts[i]);
3347 av_freep(&opts);
575ec4e1
AK
3348
3349 reset_options(o);
6291d7e4
AK
3350 return 0;
3351}
3352
f233cfed
AK
3353static void parse_forced_key_frames(char *kf, OutputStream *ost,
3354 AVCodecContext *avctx)
3355{
3356 char *p;
3357 int n = 1, i;
3358 int64_t t;
3359
3360 for (p = kf; *p; p++)
3361 if (*p == ',')
3362 n++;
3363 ost->forced_kf_count = n;
7636c8c6 3364 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
f233cfed
AK
3365 if (!ost->forced_kf_pts) {
3366 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3367 exit_program(1);
3368 }
3369 for (i = 0; i < n; i++) {
3370 p = i ? strchr(p, ',') + 1 : kf;
3371 t = parse_time_or_die("force_key_frames", p, 1);
3372 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3373 }
3374}
3375
3ec34462
AK
3376static uint8_t *get_line(AVIOContext *s)
3377{
3378 AVIOContext *line;
3379 uint8_t *buf;
3380 char c;
3381
3382 if (avio_open_dyn_buf(&line) < 0) {
3383 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3384 exit_program(1);
3385 }
3386
3387 while ((c = avio_r8(s)) && c != '\n')
3388 avio_w8(line, c);
3389 avio_w8(line, 0);
3390 avio_close_dyn_buf(line, &buf);
3391
3392 return buf;
3393}
3394
3395static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3396{
3397 int i, ret = 1;
3398 char filename[1000];
3399 const char *base[3] = { getenv("AVCONV_DATADIR"),
3400 getenv("HOME"),
3401 AVCONV_DATADIR,
3402 };
3403
3404 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3405 if (!base[i])
3406 continue;
3407 if (codec_name) {
3408 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3409 i != 1 ? "" : "/.avconv", codec_name, preset_name);
2abe947a 3410 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3411 }
3412 if (ret) {
3413 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3414 i != 1 ? "" : "/.avconv", preset_name);
2abe947a 3415 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3416 }
3417 }
3418 return ret;
3419}
3420
1b648c7c
AK
3421static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3422{
3423 char *codec_name = NULL;
3424
3425 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3426 if (!codec_name) {
3427 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3428 NULL, ost->st->codec->codec_type);
3429 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3430 } else if (!strcmp(codec_name, "copy"))
3d813e4c 3431 ost->stream_copy = 1;
1b648c7c
AK
3432 else {
3433 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3434 ost->st->codec->codec_id = ost->enc->id;
3435 }
3436}
3437
35e6f8c1 3438static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
169f0647
AK
3439{
3440 OutputStream *ost;
84ad31ff 3441 AVStream *st = avformat_new_stream(oc, NULL);
3ec34462 3442 int idx = oc->nb_streams - 1, ret = 0;
013887eb 3443 char *bsf = NULL, *next, *codec_tag = NULL;
d821cbe2 3444 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
77d9c454 3445 double qscale = -1;
3ec34462
AK
3446 char *buf = NULL, *arg = NULL, *preset = NULL;
3447 AVIOContext *s = NULL;
169f0647
AK
3448
3449 if (!st) {
f24facd3 3450 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
169f0647
AK
3451 exit_program(1);
3452 }
3453
84ad31ff
AK
3454 if (oc->nb_streams - 1 < o->nb_streamid_map)
3455 st->id = o->streamid_map[oc->nb_streams - 1];
3456
4288e031
AK
3457 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3458 nb_output_streams + 1);
3459 ost = &output_streams[nb_output_streams - 1];
40fc2810 3460 ost->file_index = nb_output_files;
7636c8c6
AD
3461 ost->index = idx;
3462 ost->st = st;
169f0647 3463 st->codec->codec_type = type;
1b648c7c 3464 choose_encoder(o, oc, ost);
169f0647
AK
3465 if (ost->enc) {
3466 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3467 }
3468
3469 avcodec_get_context_defaults3(st->codec, ost->enc);
3470 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3471
3ec34462
AK
3472 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3473 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3474 do {
3475 buf = get_line(s);
3476 if (!buf[0] || buf[0] == '#') {
3477 av_free(buf);
3478 continue;
3479 }
3480 if (!(arg = strchr(buf, '='))) {
3481 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3482 exit_program(1);
3483 }
3484 *arg++ = 0;
3485 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3486 av_free(buf);
3487 } while (!s->eof_reached);
3488 avio_close(s);
3489 }
3490 if (ret) {
3491 av_log(NULL, AV_LOG_FATAL,
3492 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3493 preset, ost->file_index, ost->index);
3494 exit_program(1);
3495 }
3496
059fb8c8
AK
3497 ost->max_frames = INT64_MAX;
3498 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
9613