avconv: remove a useless variable from OutputStream.
[libav.git] / avconv.c
CommitLineData
6291d7e4
AK
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"
6291d7e4
AK
48#include "libavformat/os_support.h"
49
6291d7e4
AK
50# include "libavfilter/avfilter.h"
51# include "libavfilter/avfiltergraph.h"
04a14d4d 52# include "libavfilter/buffersrc.h"
6291d7e4 53# include "libavfilter/vsrc_buffer.h"
6291d7e4
AK
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
e8c04f62
AK
77#define VSYNC_AUTO -1
78#define VSYNC_PASSTHROUGH 0
79#define VSYNC_CFR 1
80#define VSYNC_VFR 2
81
6291d7e4
AK
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 */
6291d7e4
AK
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 {
02494787
DB
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
6291d7e4
AK
101} MetadataMap;
102
6291d7e4
AK
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;
6291d7e4
AK
112static int do_benchmark = 0;
113static int do_hex_dump = 0;
114static int do_pkt_dump = 0;
6291d7e4
AK
115static int do_pass = 0;
116static char *pass_logfilename_prefix = NULL;
e8c04f62 117static int video_sync_method = VSYNC_AUTO;
7636c8c6
AD
118static int audio_sync_method = 0;
119static float audio_drift_threshold = 0.1;
120static int copy_ts = 0;
7bb3e625 121static int copy_tb = 1;
6291d7e4
AK
122static int opt_shortest = 0;
123static char *vstats_filename;
124static FILE *vstats_file;
6291d7e4 125
6291d7e4
AK
126static int audio_volume = 256;
127
128static int exit_on_error = 0;
129static int using_stdin = 0;
6291d7e4
AK
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;
6291d7e4
AK
136
137static float dts_delta_threshold = 10;
138
3460dd8a
AK
139static int print_stats = 1;
140
6291d7e4 141static uint8_t *audio_buf;
ee458cb1 142static unsigned int allocated_audio_buf_size;
f3ab3e1a
JR
143static uint8_t *async_buf;
144static unsigned int allocated_async_buf_size;
6291d7e4 145
6291d7e4
AK
146#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
147
64dca32c
AK
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
6494c001
AK
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;
9179f27c
JR
167 AVFrame *decoded_frame;
168 AVFrame *filtered_frame;
6494c001
AK
169
170 int64_t start; /* time when read started */
3101bb66
AK
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;
23576b3f
AK
174 /* dts of the last packet read for this stream */
175 int64_t last_dts;
6494c001
AK
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;
64dca32c
AK
181
182 /* a pool of free buffers for decoded data */
183 FrameBuffer *buffer_pool;
6494c001
AK
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;
ed5b1326
AK
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;
6291d7e4
AK
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
1270e12e
AK
209 /* pts of the first frame encoded for this stream, used for limiting
210 * recording time */
211 int64_t first_pts;
6291d7e4
AK
212 AVBitStreamFilterContext *bitstream_filters;
213 AVCodec *enc;
96139b5e 214 int64_t max_frames;
ee458cb1 215 AVFrame *output_frame;
6291d7e4
AK
216
217 /* video only */
6291d7e4
AK
218 int resample_height;
219 int resample_width;
220 int resample_pix_fmt;
221 AVRational frame_rate;
bef737a7 222 int force_fps;
828e0bcb 223 int top_field_first;
6291d7e4
AK
224
225 float frame_aspect_ratio;
226
227 /* forced key frames */
228 int64_t *forced_kf_pts;
229 int forced_kf_count;
230 int forced_kf_index;
231
232 /* audio only */
233 int audio_resample;
234 ReSampleContext *resample; /* for audio resampling */
235 int resample_sample_fmt;
236 int resample_channels;
237 int resample_sample_rate;
238 int reformat_pair;
239 AVAudioConvert *reformat_ctx;
240 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
241 FILE *logfile;
242
6291d7e4
AK
243 AVFilterContext *output_video_filter;
244 AVFilterContext *input_video_filter;
6291d7e4
AK
245 char *avfilter;
246 AVFilterGraph *graph;
6291d7e4 247
f8c314c8
AK
248 int64_t sws_flags;
249 AVDictionary *opts;
250 int is_past_recording_time;
251 int stream_copy;
252 const char *attachment_filename;
253 int copy_initial_nonkeyframes;
b7327887
AK
254
255 enum PixelFormat pix_fmts[2];
6291d7e4
AK
256} OutputStream;
257
6291d7e4 258
af70aa45
AK
259typedef struct OutputFile {
260 AVFormatContext *ctx;
261 AVDictionary *opts;
4288e031 262 int ost_index; /* index of the first stream in output_streams */
ef44a607 263 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 264 int64_t start_time; /* start time in microseconds */
f21f294e 265 uint64_t limit_filesize;
af70aa45
AK
266} OutputFile;
267
2e215267
AK
268static InputStream **input_streams = NULL;
269static int nb_input_streams = 0;
270static InputFile **input_files = NULL;
271static int nb_input_files = 0;
6291d7e4 272
2e215267
AK
273static OutputStream **output_streams = NULL;
274static int nb_output_streams = 0;
275static OutputFile **output_files = NULL;
276static int nb_output_files = 0;
af70aa45 277
575ec4e1 278typedef struct OptionsContext {
6b779ccc
AK
279 /* input/output options */
280 int64_t start_time;
7041bb3b 281 const char *format;
6b779ccc 282
35e6f8c1
AK
283 SpecifierOpt *codec_names;
284 int nb_codec_names;
6a11686d
AK
285 SpecifierOpt *audio_channels;
286 int nb_audio_channels;
e2469ccf
AK
287 SpecifierOpt *audio_sample_rate;
288 int nb_audio_sample_rate;
91ea4811
AK
289 SpecifierOpt *frame_rates;
290 int nb_frame_rates;
d4397b03
AK
291 SpecifierOpt *frame_sizes;
292 int nb_frame_sizes;
b2254d83
AK
293 SpecifierOpt *frame_pix_fmts;
294 int nb_frame_pix_fmts;
35e6f8c1 295
6b779ccc
AK
296 /* input options */
297 int64_t input_ts_offset;
f4805328 298 int rate_emu;
6b779ccc 299
33f75d72
AK
300 SpecifierOpt *ts_scale;
301 int nb_ts_scale;
a2c0b830
AK
302 SpecifierOpt *dump_attachment;
303 int nb_dump_attachment;
33f75d72 304
575ec4e1
AK
305 /* output options */
306 StreamMap *stream_maps;
307 int nb_stream_maps;
847529f8
AK
308 /* first item specifies output metadata, second is input */
309 MetadataMap (*meta_data_maps)[2];
310 int nb_meta_data_maps;
311 int metadata_global_manual;
312 int metadata_streams_manual;
313 int metadata_chapters_manual;
4dbc6cee
AK
314 const char **attachments;
315 int nb_attachments;
6b779ccc 316
c5bb372e
AK
317 int chapters_input_file;
318
6b779ccc 319 int64_t recording_time;
13ccba50 320 uint64_t limit_filesize;
dc26318c
AK
321 float mux_preload;
322 float mux_max_delay;
039267f1 323
2130981a
AK
324 int video_disable;
325 int audio_disable;
326 int subtitle_disable;
327 int data_disable;
328
495ecfd1
AK
329 /* indexed by output file stream index */
330 int *streamid_map;
331 int nb_streamid_map;
332
039267f1
AK
333 SpecifierOpt *metadata;
334 int nb_metadata;
96139b5e
AK
335 SpecifierOpt *max_frames;
336 int nb_max_frames;
d821cbe2
AK
337 SpecifierOpt *bitstream_filters;
338 int nb_bitstream_filters;
013887eb
AK
339 SpecifierOpt *codec_tags;
340 int nb_codec_tags;
05bffc12
AK
341 SpecifierOpt *sample_fmts;
342 int nb_sample_fmts;
77d9c454
AK
343 SpecifierOpt *qscale;
344 int nb_qscale;
7c029672
AK
345 SpecifierOpt *forced_key_frames;
346 int nb_forced_key_frames;
bef737a7
AK
347 SpecifierOpt *force_fps;
348 int nb_force_fps;
ca46fde7
AK
349 SpecifierOpt *frame_aspect_ratios;
350 int nb_frame_aspect_ratios;
0e68c783
AK
351 SpecifierOpt *rc_overrides;
352 int nb_rc_overrides;
2c2cff16
AK
353 SpecifierOpt *intra_matrices;
354 int nb_intra_matrices;
355 SpecifierOpt *inter_matrices;
356 int nb_inter_matrices;
828e0bcb
AK
357 SpecifierOpt *top_field_first;
358 int nb_top_field_first;
a7b5e841
AK
359 SpecifierOpt *metadata_map;
360 int nb_metadata_map;
3ec34462
AK
361 SpecifierOpt *presets;
362 int nb_presets;
a2aeeb22
AK
363 SpecifierOpt *copy_initial_nonkeyframes;
364 int nb_copy_initial_nonkeyframes;
8e5ce590
AK
365 SpecifierOpt *filters;
366 int nb_filters;
575ec4e1
AK
367} OptionsContext;
368
35e6f8c1
AK
369#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
370{\
371 int i, ret;\
372 for (i = 0; i < o->nb_ ## name; i++) {\
373 char *spec = o->name[i].specifier;\
374 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
375 outvar = o->name[i].u.type;\
376 else if (ret < 0)\
377 exit_program(1);\
378 }\
379}
380
575ec4e1
AK
381static void reset_options(OptionsContext *o)
382{
383 const OptionDef *po = options;
384
385 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
386 while (po->name) {
387 void *dst = (uint8_t*)o + po->u.off;
388
389 if (po->flags & OPT_SPEC) {
390 SpecifierOpt **so = dst;
391 int i, *count = (int*)(so + 1);
392 for (i = 0; i < *count; i++) {
393 av_freep(&(*so)[i].specifier);
394 if (po->flags & OPT_STRING)
395 av_freep(&(*so)[i].u.str);
396 }
397 av_freep(so);
398 *count = 0;
399 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
400 av_freep(dst);
401 po++;
402 }
403
404 av_freep(&o->stream_maps);
847529f8 405 av_freep(&o->meta_data_maps);
495ecfd1 406 av_freep(&o->streamid_map);
575ec4e1
AK
407
408 memset(o, 0, sizeof(*o));
6b779ccc 409
dc26318c 410 o->mux_max_delay = 0.7;
6b779ccc 411 o->recording_time = INT64_MAX;
13ccba50 412 o->limit_filesize = UINT64_MAX;
c5bb372e 413 o->chapters_input_file = INT_MAX;
6b779ccc 414
575ec4e1
AK
415 uninit_opts();
416 init_opts();
417}
418
bc1ef855 419static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
64dca32c 420{
64dca32c 421 FrameBuffer *buf = av_mallocz(sizeof(*buf));
3715d841 422 int i, ret;
64dca32c
AK
423 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
424 int h_chroma_shift, v_chroma_shift;
425 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
426 int w = s->width, h = s->height;
427
428 if (!buf)
429 return AVERROR(ENOMEM);
430
431 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
432 w += 2*edge;
433 h += 2*edge;
434 }
435
436 avcodec_align_dimensions(s, &w, &h);
437 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
438 s->pix_fmt, 32)) < 0) {
439 av_freep(&buf);
440 return ret;
441 }
442 /* XXX this shouldn't be needed, but some tests break without this line
443 * those decoders are buggy and need to be fixed.
444 * the following tests fail:
f320fb89 445 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
64dca32c
AK
446 */
447 memset(buf->base[0], 128, ret);
448
449 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
3715d841 450 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
64dca32c
AK
451 const int h_shift = i==0 ? 0 : h_chroma_shift;
452 const int v_shift = i==0 ? 0 : v_chroma_shift;
453 if (s->flags & CODEC_FLAG_EMU_EDGE)
454 buf->data[i] = buf->base[i];
455 else
456 buf->data[i] = buf->base[i] +
457 FFALIGN((buf->linesize[i]*edge >> v_shift) +
458 (pixel_size*edge >> h_shift), 32);
459 }
460 buf->w = s->width;
461 buf->h = s->height;
462 buf->pix_fmt = s->pix_fmt;
463 buf->ist = ist;
464
465 *pbuf = buf;
466 return 0;
467}
468
469static void free_buffer_pool(InputStream *ist)
470{
471 FrameBuffer *buf = ist->buffer_pool;
472 while (buf) {
473 ist->buffer_pool = buf->next;
474 av_freep(&buf->base[0]);
475 av_free(buf);
476 buf = ist->buffer_pool;
477 }
478}
479
480static void unref_buffer(InputStream *ist, FrameBuffer *buf)
481{
482 av_assert0(buf->refcount);
483 buf->refcount--;
484 if (!buf->refcount) {
485 buf->next = ist->buffer_pool;
486 ist->buffer_pool = buf;
487 }
488}
489
490static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
491{
492 InputStream *ist = s->opaque;
493 FrameBuffer *buf;
494 int ret, i;
495
bc1ef855 496 if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
64dca32c
AK
497 return ret;
498
499 buf = ist->buffer_pool;
500 ist->buffer_pool = buf->next;
501 buf->next = NULL;
502 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
503 av_freep(&buf->base[0]);
504 av_free(buf);
bc1ef855 505 if ((ret = alloc_buffer(ist, s, &buf)) < 0)
64dca32c
AK
506 return ret;
507 }
508 buf->refcount++;
509
510 frame->opaque = buf;
511 frame->type = FF_BUFFER_TYPE_USER;
512 frame->extended_data = frame->data;
513 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
bc1ef855
RB
514 frame->width = buf->w;
515 frame->height = buf->h;
516 frame->format = buf->pix_fmt;
517 frame->sample_aspect_ratio = s->sample_aspect_ratio;
64dca32c
AK
518
519 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
520 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
521 frame->data[i] = buf->data[i];
522 frame->linesize[i] = buf->linesize[i];
523 }
524
525 return 0;
526}
527
528static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
529{
530 InputStream *ist = s->opaque;
531 FrameBuffer *buf = frame->opaque;
532 int i;
533
534 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
535 frame->data[i] = NULL;
536
537 unref_buffer(ist, buf);
538}
539
04a14d4d
AK
540static void filter_release_buffer(AVFilterBuffer *fb)
541{
542 FrameBuffer *buf = fb->priv;
543 av_free(fb);
544 unref_buffer(buf->ist, buf);
545}
546
b7327887
AK
547static const enum PixelFormat *choose_pixel_fmts(OutputStream *ost)
548{
549 if (ost->st->codec->pix_fmt != PIX_FMT_NONE) {
550 ost->pix_fmts[0] = ost->st->codec->pix_fmt;
551 return ost->pix_fmts;
552 } else if (ost->enc->pix_fmts)
553 return ost->enc->pix_fmts;
554 else
555 return NULL;
556}
557
6291d7e4
AK
558static int configure_video_filters(InputStream *ist, OutputStream *ost)
559{
560 AVFilterContext *last_filter, *filter;
561 /** filter graph containing all filters including input & output */
562 AVCodecContext *codec = ost->st->codec;
563 AVCodecContext *icodec = ist->st->codec;
b7327887 564 SinkContext sink_ctx = { .pix_fmts = choose_pixel_fmts(ost) };
6291d7e4
AK
565 AVRational sample_aspect_ratio;
566 char args[255];
567 int ret;
568
569 ost->graph = avfilter_graph_alloc();
570
7636c8c6 571 if (ist->st->sample_aspect_ratio.num) {
6291d7e4 572 sample_aspect_ratio = ist->st->sample_aspect_ratio;
7636c8c6 573 } else
6291d7e4
AK
574 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
575
576 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
577 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
578 sample_aspect_ratio.num, sample_aspect_ratio.den);
579
580 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
581 "src", args, NULL, ost->graph);
582 if (ret < 0)
583 return ret;
abe655a4
DB
584 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
585 "out", NULL, &sink_ctx, ost->graph);
6291d7e4
AK
586 if (ret < 0)
587 return ret;
588 last_filter = ost->input_video_filter;
589
7636c8c6 590 if (codec->width != icodec->width || codec->height != icodec->height) {
6291d7e4
AK
591 snprintf(args, 255, "%d:%d:flags=0x%X",
592 codec->width,
593 codec->height,
3b3ea346 594 (unsigned)ost->sws_flags);
6291d7e4
AK
595 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
596 NULL, args, NULL, ost->graph)) < 0)
597 return ret;
598 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
599 return ret;
600 last_filter = filter;
601 }
602
3b3ea346 603 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
6291d7e4
AK
604 ost->graph->scale_sws_opts = av_strdup(args);
605
606 if (ost->avfilter) {
91d3cbe0
SS
607 AVFilterInOut *outputs = avfilter_inout_alloc();
608 AVFilterInOut *inputs = avfilter_inout_alloc();
6291d7e4
AK
609
610 outputs->name = av_strdup("in");
611 outputs->filter_ctx = last_filter;
612 outputs->pad_idx = 0;
613 outputs->next = NULL;
614
615 inputs->name = av_strdup("out");
616 inputs->filter_ctx = ost->output_video_filter;
617 inputs->pad_idx = 0;
618 inputs->next = NULL;
619
620 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
621 return ret;
6291d7e4
AK
622 } else {
623 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
624 return ret;
625 }
626
627 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
628 return ret;
629
630 codec->width = ost->output_video_filter->inputs[0]->w;
631 codec->height = ost->output_video_filter->inputs[0]->h;
632 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
bb337b4f 633 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
7636c8c6 634 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
6291d7e4 635 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
b7327887 636 codec->pix_fmt = ost->output_video_filter->inputs[0]->format;
6291d7e4
AK
637
638 return 0;
639}
6291d7e4
AK
640
641static void term_exit(void)
642{
643 av_log(NULL, AV_LOG_QUIET, "");
644}
645
646static volatile int received_sigterm = 0;
647static volatile int received_nb_signals = 0;
648
649static void
650sigterm_handler(int sig)
651{
652 received_sigterm = sig;
653 received_nb_signals++;
654 term_exit();
655}
656
657static void term_init(void)
658{
7636c8c6 659 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
6291d7e4
AK
660 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
661#ifdef SIGXCPU
662 signal(SIGXCPU, sigterm_handler);
663#endif
664}
665
2abe947a 666static int decode_interrupt_cb(void *ctx)
6291d7e4
AK
667{
668 return received_nb_signals > 1;
669}
670
2abe947a
MS
671static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
672
dad09ff9 673void exit_program(int ret)
6291d7e4
AK
674{
675 int i;
676
677 /* close files */
7636c8c6 678 for (i = 0; i < nb_output_files; i++) {
2e215267 679 AVFormatContext *s = output_files[i]->ctx;
6291d7e4
AK
680 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
681 avio_close(s->pb);
682 avformat_free_context(s);
2e215267
AK
683 av_dict_free(&output_files[i]->opts);
684 av_freep(&output_files[i]);
6291d7e4 685 }
1135a071 686 for (i = 0; i < nb_output_streams; i++) {
2e215267 687 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
JG
688 while (bsfc) {
689 AVBitStreamFilterContext *next = bsfc->next;
690 av_bitstream_filter_close(bsfc);
691 bsfc = next;
692 }
2e215267 693 output_streams[i]->bitstream_filters = NULL;
ac646076 694
2e215267
AK
695 if (output_streams[i]->output_frame) {
696 AVFrame *frame = output_streams[i]->output_frame;
ee458cb1
JR
697 if (frame->extended_data != frame->data)
698 av_freep(&frame->extended_data);
699 av_freep(&frame);
700 }
701
2e215267
AK
702 av_freep(&output_streams[i]->avfilter);
703 av_freep(&output_streams[i]);
1135a071 704 }
7636c8c6 705 for (i = 0; i < nb_input_files; i++) {
2e215267
AK
706 avformat_close_input(&input_files[i]->ctx);
707 av_freep(&input_files[i]);
6291d7e4 708 }
9179f27c 709 for (i = 0; i < nb_input_streams; i++) {
2e215267
AK
710 av_freep(&input_streams[i]->decoded_frame);
711 av_freep(&input_streams[i]->filtered_frame);
712 av_dict_free(&input_streams[i]->opts);
713 free_buffer_pool(input_streams[i]);
714 av_freep(&input_streams[i]);
9179f27c 715 }
6291d7e4 716
6291d7e4
AK
717 if (vstats_file)
718 fclose(vstats_file);
719 av_free(vstats_filename);
720
6291d7e4
AK
721 av_freep(&input_streams);
722 av_freep(&input_files);
4288e031 723 av_freep(&output_streams);
af70aa45 724 av_freep(&output_files);
6291d7e4 725
6291d7e4
AK
726 uninit_opts();
727 av_free(audio_buf);
ee458cb1 728 allocated_audio_buf_size = 0;
f3ab3e1a
JR
729 av_free(async_buf);
730 allocated_async_buf_size = 0;
6291d7e4 731
6291d7e4 732 avfilter_uninit();
776f2bb9 733 avformat_network_deinit();
6291d7e4
AK
734
735 if (received_sigterm) {
e3245b26
AK
736 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
737 (int) received_sigterm);
6291d7e4
AK
738 exit (255);
739 }
740
f75e3d25 741 exit(ret);
6291d7e4
AK
742}
743
744static void assert_avoptions(AVDictionary *m)
745{
746 AVDictionaryEntry *t;
747 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 748 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
6291d7e4
AK
749 exit_program(1);
750 }
751}
752
753static void assert_codec_experimental(AVCodecContext *c, int encoder)
754{
755 const char *codec_string = encoder ? "encoder" : "decoder";
756 AVCodec *codec;
757 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
758 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 759 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
6291d7e4
AK
760 "results.\nAdd '-strict experimental' if you want to use it.\n",
761 codec_string, c->codec->name);
762 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
763 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 764 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4
AK
765 codec_string, codec->name);
766 exit_program(1);
767 }
768}
769
6291d7e4
AK
770static void choose_sample_fmt(AVStream *st, AVCodec *codec)
771{
7636c8c6
AD
772 if (codec && codec->sample_fmts) {
773 const enum AVSampleFormat *p = codec->sample_fmts;
774 for (; *p != -1; p++) {
775 if (*p == st->codec->sample_fmt)
6291d7e4
AK
776 break;
777 }
778 if (*p == -1) {
779 av_log(NULL, AV_LOG_WARNING,
780 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
781 av_get_sample_fmt_name(st->codec->sample_fmt),
782 codec->name,
783 av_get_sample_fmt_name(codec->sample_fmts[0]));
784 st->codec->sample_fmt = codec->sample_fmts[0];
785 }
786 }
787}
788
789/**
790 * Update the requested input sample format based on the output sample format.
791 * This is currently only used to request float output from decoders which
792 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
793 * Ideally this will be removed in the future when decoders do not do format
794 * conversion and only output in their native format.
795 */
796static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
797 AVCodecContext *enc)
798{
799 /* if sample formats match or a decoder sample format has already been
800 requested, just return */
801 if (enc->sample_fmt == dec->sample_fmt ||
802 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
803 return;
804
805 /* if decoder supports more than one output format */
806 if (dec_codec && dec_codec->sample_fmts &&
807 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
808 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
809 const enum AVSampleFormat *p;
810 int min_dec = -1, min_inc = -1;
811
812 /* find a matching sample format in the encoder */
813 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
814 if (*p == enc->sample_fmt) {
815 dec->request_sample_fmt = *p;
816 return;
817 } else if (*p > enc->sample_fmt) {
818 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
819 } else
820 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
821 }
822
823 /* if none match, provide the one that matches quality closest */
824 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
825 enc->sample_fmt - min_dec;
826 }
827}
828
829static void choose_sample_rate(AVStream *st, AVCodec *codec)
830{
7636c8c6
AD
831 if (codec && codec->supported_samplerates) {
832 const int *p = codec->supported_samplerates;
833 int best = 0;
834 int best_dist = INT_MAX;
835 for (; *p; p++) {
836 int dist = abs(st->codec->sample_rate - *p);
837 if (dist < best_dist) {
838 best_dist = dist;
839 best = *p;
6291d7e4
AK
840 }
841 }
7636c8c6 842 if (best_dist) {
6291d7e4
AK
843 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
844 }
7636c8c6 845 st->codec->sample_rate = best;
6291d7e4
AK
846 }
847}
848
6291d7e4 849static double
6e983902 850get_sync_ipts(const OutputStream *ost, int64_t pts)
6291d7e4 851{
2e215267 852 OutputFile *of = output_files[ost->file_index];
6e983902 853 return (double)(pts - of->start_time) / AV_TIME_BASE;
6291d7e4
AK
854}
855
f15f02c2 856static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 857{
f15f02c2
AK
858 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
859 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
860 int ret;
861
99932847
AK
862 /*
863 * Audio encoders may split the packets -- #frames in != #packets out.
864 * But there is no reordering, so we can limit the number of output packets
865 * by simply dropping them here.
866 * Counting encoded video frames needs to be done separately because of
867 * reordering, see do_video_out()
868 */
869 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
870 if (ost->frame_number >= ost->max_frames) {
871 av_free_packet(pkt);
99932847 872 return;
c9594fe0 873 }
99932847
AK
874 ost->frame_number++;
875 }
876
7636c8c6
AD
877 while (bsfc) {
878 AVPacket new_pkt = *pkt;
879 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
880 &new_pkt.data, &new_pkt.size,
881 pkt->data, pkt->size,
882 pkt->flags & AV_PKT_FLAG_KEY);
883 if (a > 0) {
6291d7e4 884 av_free_packet(pkt);
7636c8c6
AD
885 new_pkt.destruct = av_destruct_packet;
886 } else if (a < 0) {
e3245b26
AK
887 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
888 bsfc->filter->name, pkt->stream_index,
889 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
890 print_error("", a);
891 if (exit_on_error)
892 exit_program(1);
893 }
7636c8c6 894 *pkt = new_pkt;
6291d7e4 895
7636c8c6 896 bsfc = bsfc->next;
6291d7e4
AK
897 }
898
61a09968 899 pkt->stream_index = ost->index;
7636c8c6
AD
900 ret = av_interleaved_write_frame(s, pkt);
901 if (ret < 0) {
6291d7e4
AK
902 print_error("av_interleaved_write_frame()", ret);
903 exit_program(1);
904 }
905}
906
1270e12e
AK
907static int check_recording_time(OutputStream *ost)
908{
2e215267 909 OutputFile *of = output_files[ost->file_index];
1270e12e
AK
910
911 if (of->recording_time != INT64_MAX &&
912 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
913 AV_TIME_BASE_Q) >= 0) {
914 ost->is_past_recording_time = 1;
915 return 0;
916 }
917 return 1;
918}
919
fdab793a
AC
920static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
921{
922 int fill_char = 0x00;
923 if (sample_fmt == AV_SAMPLE_FMT_U8)
924 fill_char = 0x80;
925 memset(buf, fill_char, size);
926}
927
ee458cb1
JR
928static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
929 const uint8_t *buf, int buf_size)
930{
931 AVCodecContext *enc = ost->st->codec;
932 AVFrame *frame = NULL;
933 AVPacket pkt;
934 int ret, got_packet;
935
936 av_init_packet(&pkt);
937 pkt.data = NULL;
938 pkt.size = 0;
939
940 if (buf) {
941 if (!ost->output_frame) {
942 ost->output_frame = avcodec_alloc_frame();
943 if (!ost->output_frame) {
944 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
945 exit_program(1);
946 }
947 }
948 frame = ost->output_frame;
949 if (frame->extended_data != frame->data)
950 av_freep(&frame->extended_data);
951 avcodec_get_frame_defaults(frame);
952
953 frame->nb_samples = buf_size /
954 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
955 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
956 buf, buf_size, 1)) < 0) {
957 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
958 exit_program(1);
959 }
1270e12e
AK
960
961 if (!check_recording_time(ost))
962 return 0;
963
9b9fc9ba 964 frame->pts = ost->sync_opts;
1270e12e 965 ost->sync_opts += frame->nb_samples;
ee458cb1
JR
966 }
967
968 got_packet = 0;
969 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
970 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
971 exit_program(1);
972 }
973
974 if (got_packet) {
ee458cb1
JR
975 if (pkt.pts != AV_NOPTS_VALUE)
976 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
977 if (pkt.dts != AV_NOPTS_VALUE)
978 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
979 if (pkt.duration > 0)
980 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
981
982 write_frame(s, &pkt, ost);
983
984 audio_size += pkt.size;
985 }
986
ee458cb1
JR
987 return pkt.size;
988}
989
9869e963
JR
990static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
991 int nb_samples)
992{
993 int64_t audio_buf_samples;
994 int audio_buf_size;
995
996 /* calculate required number of samples to allocate */
997 audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
998 dec->sample_rate;
4094fc99 999 audio_buf_samples = 4 * audio_buf_samples + 16; // safety factors for resampling
9869e963
JR
1000 audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
1001 if (audio_buf_samples > INT_MAX)
1002 return AVERROR(EINVAL);
1003
1004 audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
1005 audio_buf_samples,
679a973e 1006 enc->sample_fmt, 0);
9869e963
JR
1007 if (audio_buf_size < 0)
1008 return audio_buf_size;
1009
1010 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1011 if (!audio_buf)
1012 return AVERROR(ENOMEM);
1013
1014 return 0;
1015}
1016
d1241ff3
JR
1017static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1018 InputStream *ist, AVFrame *decoded_frame)
6291d7e4
AK
1019{
1020 uint8_t *buftmp;
6291d7e4 1021
ee458cb1 1022 int size_out, frame_bytes, resample_changed;
7636c8c6
AD
1023 AVCodecContext *enc = ost->st->codec;
1024 AVCodecContext *dec = ist->st->codec;
6291d7e4
AK
1025 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1026 int isize = av_get_bytes_per_sample(dec->sample_fmt);
d1241ff3
JR
1027 uint8_t *buf = decoded_frame->data[0];
1028 int size = decoded_frame->nb_samples * dec->channels * isize;
7636c8c6 1029
9869e963
JR
1030 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
1031 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
6291d7e4
AK
1032 exit_program(1);
1033 }
1034
1035 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1036 ost->audio_resample = 1;
1037
1038 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1039 ost->resample_channels != dec->channels ||
1040 ost->resample_sample_rate != dec->sample_rate;
1041
1042 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1043 if (resample_changed) {
9a414d89 1044 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",
6291d7e4
AK
1045 ist->file_index, ist->st->index,
1046 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1047 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1048 ost->resample_sample_fmt = dec->sample_fmt;
1049 ost->resample_channels = dec->channels;
1050 ost->resample_sample_rate = dec->sample_rate;
1051 if (ost->resample)
1052 audio_resample_close(ost->resample);
1053 }
1054 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1055 if (audio_sync_method <= 1 &&
1056 ost->resample_sample_fmt == enc->sample_fmt &&
1057 ost->resample_channels == enc->channels &&
1058 ost->resample_sample_rate == enc->sample_rate) {
1059 ost->resample = NULL;
1060 ost->audio_resample = 0;
1061 } else if (ost->audio_resample) {
1062 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
e3245b26 1063 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
6291d7e4
AK
1064 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1065 enc->sample_rate, dec->sample_rate,
1066 enc->sample_fmt, dec->sample_fmt,
1067 16, 10, 0, 0.8);
1068 if (!ost->resample) {
e3245b26
AK
1069 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1070 dec->channels, dec->sample_rate,
1071 enc->channels, enc->sample_rate);
6291d7e4
AK
1072 exit_program(1);
1073 }
1074 }
1075 }
1076
1077#define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
7636c8c6
AD
1078 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1079 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
6291d7e4
AK
1080 if (ost->reformat_ctx)
1081 av_audio_convert_free(ost->reformat_ctx);
1082 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1083 dec->sample_fmt, 1, NULL, 0);
1084 if (!ost->reformat_ctx) {
e3245b26
AK
1085 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1086 av_get_sample_fmt_name(dec->sample_fmt),
1087 av_get_sample_fmt_name(enc->sample_fmt));
6291d7e4
AK
1088 exit_program(1);
1089 }
7636c8c6 1090 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
6291d7e4
AK
1091 }
1092
b073819b 1093 if (audio_sync_method > 0) {
23576b3f 1094 double delta = get_sync_ipts(ost, ist->last_dts) * enc->sample_rate - ost->sync_opts -
7636c8c6 1095 av_fifo_size(ost->fifo) / (enc->channels * osize);
fdab793a
AC
1096 int idelta = delta * dec->sample_rate / enc->sample_rate;
1097 int byte_delta = idelta * isize * dec->channels;
6291d7e4 1098
7636c8c6
AD
1099 // FIXME resample delay
1100 if (fabs(delta) > 50) {
1101 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1102 if (byte_delta < 0) {
1103 byte_delta = FFMAX(byte_delta, -size);
6291d7e4
AK
1104 size += byte_delta;
1105 buf -= byte_delta;
fdab793a
AC
1106 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1107 -byte_delta / (isize * dec->channels));
7636c8c6 1108 if (!size)
6291d7e4 1109 return;
7636c8c6
AD
1110 ist->is_start = 0;
1111 } else {
f3ab3e1a
JR
1112 av_fast_malloc(&async_buf, &allocated_async_buf_size,
1113 byte_delta + size);
1114 if (!async_buf) {
1115 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1116 exit_program(1);
1117 }
6291d7e4 1118
9869e963
JR
1119 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
1120 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1121 exit_program(1);
6291d7e4 1122 }
7636c8c6 1123 ist->is_start = 0;
6291d7e4 1124
f3ab3e1a
JR
1125 generate_silence(async_buf, dec->sample_fmt, byte_delta);
1126 memcpy(async_buf + byte_delta, buf, size);
1127 buf = async_buf;
6291d7e4 1128 size += byte_delta;
fdab793a 1129 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
6291d7e4 1130 }
7636c8c6
AD
1131 } else if (audio_sync_method > 1) {
1132 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
6291d7e4 1133 av_assert0(ost->audio_resample);
e3245b26
AK
1134 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1135 delta, comp, enc->sample_rate);
6291d7e4
AK
1136// 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));
1137 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1138 }
1139 }
b073819b 1140 } else if (audio_sync_method == 0)
23576b3f 1141 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->last_dts) * enc->sample_rate) -
7636c8c6 1142 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
6291d7e4
AK
1143
1144 if (ost->audio_resample) {
1145 buftmp = audio_buf;
1146 size_out = audio_resample(ost->resample,
1147 (short *)buftmp, (short *)buf,
1148 size / (dec->channels * isize));
1149 size_out = size_out * enc->channels * osize;
1150 } else {
1151 buftmp = buf;
1152 size_out = size;
1153 }
1154
7636c8c6
AD
1155 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1156 const void *ibuf[6] = { buftmp };
1157 void *obuf[6] = { audio_buf };
1158 int istride[6] = { isize };
1159 int ostride[6] = { osize };
1160 int len = size_out / istride[0];
1161 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
6291d7e4
AK
1162 printf("av_audio_convert() failed\n");
1163 if (exit_on_error)
1164 exit_program(1);
1165 return;
1166 }
1167 buftmp = audio_buf;
7636c8c6 1168 size_out = len * osize;
6291d7e4
AK
1169 }
1170
1171 /* now encode as many frames as possible */
ee458cb1 1172 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
6291d7e4
AK
1173 /* output resampled raw samples */
1174 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
e3245b26 1175 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
6291d7e4
AK
1176 exit_program(1);
1177 }
1178 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1179
1180 frame_bytes = enc->frame_size * osize * enc->channels;
1181
1182 while (av_fifo_size(ost->fifo) >= frame_bytes) {
6291d7e4 1183 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
ee458cb1 1184 encode_audio_frame(s, ost, audio_buf, frame_bytes);
6291d7e4
AK
1185 }
1186 } else {
ee458cb1 1187 encode_audio_frame(s, ost, buftmp, size_out);
6291d7e4
AK
1188 }
1189}
1190
1191static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1192{
1193 AVCodecContext *dec;
1194 AVPicture *picture2;
1195 AVPicture picture_tmp;
1196 uint8_t *buf = 0;
1197
1198 dec = ist->st->codec;
1199
1200 /* deinterlace : must be done before any resize */
1201 if (do_deinterlace) {
1202 int size;
1203
1204 /* create temporary picture */
1205 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1206 buf = av_malloc(size);
6291d7e4
AK
1207 if (!buf)
1208 return;
1209
1210 picture2 = &picture_tmp;
1211 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1212
7636c8c6 1213 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1214 dec->pix_fmt, dec->width, dec->height) < 0) {
1215 /* if error, do not deinterlace */
e3245b26 1216 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1217 av_free(buf);
1218 buf = NULL;
1219 picture2 = picture;
1220 }
1221 } else {
1222 picture2 = picture;
1223 }
1224
1225 if (picture != picture2)
1226 *picture = *picture2;
1227 *bufp = buf;
1228}
1229
6291d7e4
AK
1230static void do_subtitle_out(AVFormatContext *s,
1231 OutputStream *ost,
1232 InputStream *ist,
1233 AVSubtitle *sub,
1234 int64_t pts)
1235{
1236 static uint8_t *subtitle_out = NULL;
1237 int subtitle_out_max_size = 1024 * 1024;
1238 int subtitle_out_size, nb, i;
1239 AVCodecContext *enc;
1240 AVPacket pkt;
1241
1242 if (pts == AV_NOPTS_VALUE) {
e3245b26 1243 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1244 if (exit_on_error)
1245 exit_program(1);
1246 return;
1247 }
1248
1249 enc = ost->st->codec;
1250
1251 if (!subtitle_out) {
1252 subtitle_out = av_malloc(subtitle_out_max_size);
1253 }
1254
1255 /* Note: DVB subtitle need one packet to draw them and one other
1256 packet to clear them */
1257 /* XXX: signal it in the codec context ? */
1258 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1259 nb = 2;
1260 else
1261 nb = 1;
1262
7636c8c6 1263 for (i = 0; i < nb; i++) {
1270e12e
AK
1264 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1265 if (!check_recording_time(ost))
1266 return;
1267
6291d7e4
AK
1268 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1269 // start_display_time is required to be 0
7636c8c6
AD
1270 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1271 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1272 sub->start_display_time = 0;
1273 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1274 subtitle_out_max_size, sub);
1275 if (subtitle_out_size < 0) {
e3245b26 1276 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1277 exit_program(1);
1278 }
1279
1280 av_init_packet(&pkt);
6291d7e4
AK
1281 pkt.data = subtitle_out;
1282 pkt.size = subtitle_out_size;
7636c8c6 1283 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
AK
1284 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1285 /* XXX: the pts correction is handled here. Maybe handling
1286 it in the codec would be better */
1287 if (i == 0)
1288 pkt.pts += 90 * sub->start_display_time;
1289 else
1290 pkt.pts += 90 * sub->end_display_time;
1291 }
f15f02c2 1292 write_frame(s, &pkt, ost);
6291d7e4
AK
1293 }
1294}
1295
87ef060c
AC
1296static void do_video_out(AVFormatContext *s,
1297 OutputStream *ost,
87ef060c
AC
1298 AVFrame *in_picture,
1299 int *frame_size, float quality)
1300{
553735f5 1301 int nb_frames, i, ret, format_video_sync;
f593628e 1302 AVCodecContext *enc;
d43040e2 1303 double sync_ipts, delta;
87ef060c
AC
1304
1305 enc = ost->st->codec;
87ef060c 1306
6e983902 1307 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
d43040e2 1308 delta = sync_ipts - ost->sync_opts;
87ef060c
AC
1309
1310 /* by default, we output a single frame */
1311 nb_frames = 1;
1312
1313 *frame_size = 0;
1314
553735f5 1315 format_video_sync = video_sync_method;
e8c04f62
AK
1316 if (format_video_sync == VSYNC_AUTO)
1317 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1318 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
553735f5 1319
d43040e2
AK
1320 switch (format_video_sync) {
1321 case VSYNC_CFR:
7636c8c6 1322 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
d43040e2 1323 if (delta < -1.1)
87ef060c 1324 nb_frames = 0;
d43040e2
AK
1325 else if (delta > 1.1)
1326 nb_frames = lrintf(delta);
1327 break;
1328 case VSYNC_VFR:
1329 if (delta <= -0.6)
1330 nb_frames = 0;
1331 else if (delta > 0.6)
1332 ost->sync_opts = lrintf(sync_ipts);
1333 break;
1334 case VSYNC_PASSTHROUGH:
7636c8c6 1335 ost->sync_opts = lrintf(sync_ipts);
d43040e2
AK
1336 break;
1337 default:
1338 av_assert0(0);
1339 }
87ef060c 1340
96139b5e 1341 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
d43040e2
AK
1342 if (nb_frames == 0) {
1343 nb_frames_drop++;
1344 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1345 return;
d43040e2
AK
1346 } else if (nb_frames > 1) {
1347 nb_frames_dup += nb_frames - 1;
1348 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1349 }
87ef060c 1350
1270e12e
AK
1351 if (!ost->frame_number)
1352 ost->first_pts = ost->sync_opts;
1353
6291d7e4 1354 /* duplicates frame if needed */
7636c8c6 1355 for (i = 0; i < nb_frames; i++) {
6291d7e4
AK
1356 AVPacket pkt;
1357 av_init_packet(&pkt);
8e37038a
AK
1358 pkt.data = NULL;
1359 pkt.size = 0;
6291d7e4 1360
1270e12e
AK
1361 if (!check_recording_time(ost))
1362 return;
1363
150ddbc1
MR
1364 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1365 enc->codec->id == CODEC_ID_RAWVIDEO) {
6291d7e4 1366 /* raw pictures are written as AVPicture structure to
bb337b4f 1367 avoid any copies. We support temporarily the older
6291d7e4 1368 method. */
f593628e
AC
1369 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1370 enc->coded_frame->top_field_first = in_picture->top_field_first;
4648fe63 1371 pkt.data = (uint8_t *)in_picture;
7636c8c6
AD
1372 pkt.size = sizeof(AVPicture);
1373 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
6291d7e4
AK
1374 pkt.flags |= AV_PKT_FLAG_KEY;
1375
f15f02c2 1376 write_frame(s, &pkt, ost);
6291d7e4 1377 } else {
8e37038a 1378 int got_packet;
6291d7e4
AK
1379 AVFrame big_picture;
1380
4648fe63 1381 big_picture = *in_picture;
6291d7e4
AK
1382 /* better than nothing: use input picture interlaced
1383 settings */
1384 big_picture.interlaced_frame = in_picture->interlaced_frame;
1385 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
828e0bcb 1386 if (ost->top_field_first == -1)
6291d7e4
AK
1387 big_picture.top_field_first = in_picture->top_field_first;
1388 else
828e0bcb 1389 big_picture.top_field_first = !!ost->top_field_first;
6291d7e4
AK
1390 }
1391
f4ad238c 1392 /* handles same_quant here. This is not correct because it may
6291d7e4
AK
1393 not be a global option */
1394 big_picture.quality = quality;
d242d80e 1395 if (!enc->me_threshold)
6291d7e4 1396 big_picture.pict_type = 0;
7636c8c6 1397 big_picture.pts = ost->sync_opts;
6291d7e4
AK
1398 if (ost->forced_kf_index < ost->forced_kf_count &&
1399 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1400 big_picture.pict_type = AV_PICTURE_TYPE_I;
1401 ost->forced_kf_index++;
1402 }
8e37038a 1403 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
6291d7e4 1404 if (ret < 0) {
e3245b26 1405 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6291d7e4
AK
1406 exit_program(1);
1407 }
1408
8e37038a
AK
1409 if (got_packet) {
1410 if (pkt.pts != AV_NOPTS_VALUE)
1411 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1412 if (pkt.dts != AV_NOPTS_VALUE)
1413 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1414
f15f02c2 1415 write_frame(s, &pkt, ost);
39da3b22
AK
1416 *frame_size = pkt.size;
1417 video_size += pkt.size;
324fbadf 1418
6291d7e4
AK
1419 /* if two pass, output log */
1420 if (ost->logfile && enc->stats_out) {
1421 fprintf(ost->logfile, "%s", enc->stats_out);
1422 }
1423 }
1424 }
1425 ost->sync_opts++;
99932847
AK
1426 /*
1427 * For video, number of frames in == number of packets out.
1428 * But there may be reordering, so we can't throw away frames on encoder
1429 * flush, we need to limit them here, before they go into encoder.
1430 */
1431 ost->frame_number++;
6291d7e4
AK
1432 }
1433}
1434
7636c8c6
AD
1435static double psnr(double d)
1436{
1437 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1438}
1439
1440static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1441 int frame_size)
1442{
1443 AVCodecContext *enc;
1444 int frame_number;
1445 double ti1, bitrate, avg_bitrate;
1446
1447 /* this is executed just the first time do_video_stats is called */
1448 if (!vstats_file) {
1449 vstats_file = fopen(vstats_filename, "w");
1450 if (!vstats_file) {
1451 perror("fopen");
1452 exit_program(1);
1453 }
1454 }
1455
1456 enc = ost->st->codec;
1457 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1458 frame_number = ost->frame_number;
7636c8c6 1459 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1460 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1461 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1462
1463 fprintf(vstats_file,"f_size= %6d ", frame_size);
1464 /* compute pts value */
1465 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1466 if (ti1 < 0.01)
1467 ti1 = 0.01;
1468
7636c8c6 1469 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1470 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1471 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1472 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1473 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1474 }
1475}
1476
ea9367e9 1477static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1478{
1479 char buf[1024];
1480 OutputStream *ost;
1481 AVFormatContext *oc;
1482 int64_t total_size;
1483 AVCodecContext *enc;
1484 int frame_number, vid, i;
1485 double bitrate, ti1, pts;
1486 static int64_t last_time = -1;
1487 static int qp_histogram[52];
1488
3460dd8a
AK
1489 if (!print_stats && !is_last_report)
1490 return;
1491
6291d7e4
AK
1492 if (!is_last_report) {
1493 int64_t cur_time;
1494 /* display the report every 0.5 seconds */
1495 cur_time = av_gettime();
1496 if (last_time == -1) {
1497 last_time = cur_time;
1498 return;
1499 }
1500 if ((cur_time - last_time) < 500000)
1501 return;
1502 last_time = cur_time;
1503 }
1504
1505
2e215267 1506 oc = output_files[0]->ctx;
6291d7e4
AK
1507
1508 total_size = avio_size(oc->pb);
7636c8c6
AD
1509 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1510 total_size = avio_tell(oc->pb);
6291d7e4
AK
1511
1512 buf[0] = '\0';
1513 ti1 = 1e10;
1514 vid = 0;
ea9367e9 1515 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1516 float q = -1;
2e215267 1517 ost = output_streams[i];
6291d7e4 1518 enc = ost->st->codec;
3d813e4c 1519 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1520 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1521 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1522 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1523 }
1524 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1525 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1526
1527 frame_number = ost->frame_number;
1528 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1529 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1530 if (is_last_report)
6291d7e4 1531 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1532 if (qp_hist) {
6291d7e4
AK
1533 int j;
1534 int qp = lrintf(q);
7636c8c6 1535 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1536 qp_histogram[qp]++;
7636c8c6
AD
1537 for (j = 0; j < 32; j++)
1538 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1539 }
7636c8c6 1540 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1541 int j;
7636c8c6
AD
1542 double error, error_sum = 0;
1543 double scale, scale_sum = 0;
1544 char type[3] = { 'Y','U','V' };
6291d7e4 1545 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1546 for (j = 0; j < 3; j++) {
1547 if (is_last_report) {
1548 error = enc->error[j];
1549 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1550 } else {
1551 error = enc->coded_frame->error[j];
1552 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1553 }
7636c8c6
AD
1554 if (j)
1555 scale /= 4;
6291d7e4
AK
1556 error_sum += error;
1557 scale_sum += scale;
7636c8c6 1558 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1559 }
7636c8c6 1560 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1561 }
1562 vid = 1;
1563 }
1564 /* compute min output value */
1565 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1566 if ((pts < ti1) && (pts > 0))
1567 ti1 = pts;
1568 }
1569 if (ti1 < 0.01)
1570 ti1 = 0.01;
1571
e3245b26 1572 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1573
e3245b26 1574 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1575 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1576 (double)total_size / 1024, ti1, bitrate);
1577
e3245b26
AK
1578 if (nb_frames_dup || nb_frames_drop)
1579 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1580 nb_frames_dup, nb_frames_drop);
6291d7e4 1581
f5646a32 1582 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1583
e3245b26 1584 fflush(stderr);
6291d7e4 1585
e3245b26 1586 if (is_last_report) {
6291d7e4 1587 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1588 av_log(NULL, AV_LOG_INFO, "\n");
1589 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1590 video_size / 1024.0,
1591 audio_size / 1024.0,
1592 extra_size / 1024.0,
1593 100.0 * (total_size - raw) / raw
6291d7e4
AK
1594 );
1595 }
1596}
1597
ea9367e9 1598static void flush_encoders(void)
4a4ce2e7
AK
1599{
1600 int i, ret;
1601
ea9367e9 1602 for (i = 0; i < nb_output_streams; i++) {
2e215267 1603 OutputStream *ost = output_streams[i];
6f1c66d5 1604 AVCodecContext *enc = ost->st->codec;
2e215267 1605 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 1606 int stop_encoding = 0;
6f1c66d5 1607
b62b5cb6 1608 if (!ost->encoding_needed)
6f1c66d5
AK
1609 continue;
1610
7636c8c6 1611 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1612 continue;
150ddbc1 1613 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1614 continue;
1615
7636c8c6 1616 for (;;) {
6f1c66d5 1617 AVPacket pkt;
8e37038a 1618 int fifo_bytes, got_packet;
6f1c66d5 1619 av_init_packet(&pkt);
ee458cb1
JR
1620 pkt.data = NULL;
1621 pkt.size = 0;
6f1c66d5
AK
1622
1623 switch (ost->st->codec->codec_type) {
1624 case AVMEDIA_TYPE_AUDIO:
1625 fifo_bytes = av_fifo_size(ost->fifo);
6f1c66d5 1626 if (fifo_bytes > 0) {
ee458cb1
JR
1627 /* encode any samples remaining in fifo */
1628 int frame_bytes = fifo_bytes;
6f1c66d5
AK
1629
1630 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
ee458cb1
JR
1631
1632 /* pad last frame with silence if needed */
1633 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1634 frame_bytes = enc->frame_size * enc->channels *
1635 av_get_bytes_per_sample(enc->sample_fmt);
6f1c66d5 1636 if (allocated_audio_buf_size < frame_bytes)
4a4ce2e7 1637 exit_program(1);
6f1c66d5 1638 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
4a4ce2e7 1639 }
ee458cb1
JR
1640 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1641 } else {
1642 /* flush encoder with NULL frames until it is done
1643 returning packets */
1644 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1645 stop_encoding = 1;
1646 break;
1647 }
6f1c66d5 1648 }
6f1c66d5
AK
1649 break;
1650 case AVMEDIA_TYPE_VIDEO:
8e37038a 1651 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
6f1c66d5 1652 if (ret < 0) {
e3245b26 1653 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6f1c66d5
AK
1654 exit_program(1);
1655 }
1656 video_size += ret;
6f1c66d5
AK
1657 if (ost->logfile && enc->stats_out) {
1658 fprintf(ost->logfile, "%s", enc->stats_out);
1659 }
8e37038a 1660 if (!got_packet) {
ee458cb1
JR
1661 stop_encoding = 1;
1662 break;
1663 }
8e37038a
AK
1664 if (pkt.pts != AV_NOPTS_VALUE)
1665 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1666 if (pkt.dts != AV_NOPTS_VALUE)
1667 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1668 write_frame(os, &pkt, ost);
6f1c66d5
AK
1669 break;
1670 default:
ee458cb1 1671 stop_encoding = 1;
4a4ce2e7 1672 }
ee458cb1 1673 if (stop_encoding)
6f1c66d5 1674 break;
4a4ce2e7
AK
1675 }
1676 }
1677}
1678
7204ec1a
AK
1679/*
1680 * Check whether a packet from ist should be written into ost at this time
1681 */
1682static int check_output_constraints(InputStream *ist, OutputStream *ost)
1683{
2e215267
AK
1684 OutputFile *of = output_files[ost->file_index];
1685 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1686
1687 if (ost->source_index != ist_index)
1688 return 0;
1689
23576b3f 1690 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1691 return 0;
1692
7204ec1a
AK
1693 return 1;
1694}
1695
1696static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1697{
2e215267 1698 OutputFile *of = output_files[ost->file_index];
7204ec1a
AK
1699 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1700 AVPacket opkt;
1701
1702 av_init_packet(&opkt);
1703
1704 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1705 !ost->copy_initial_nonkeyframes)
1706 return;
1707
1270e12e 1708 if (of->recording_time != INT64_MAX &&
23576b3f 1709 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1710 ost->is_past_recording_time = 1;
1711 return;
1712 }
1713
7204ec1a
AK
1714 /* force the input stream PTS */
1715 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1716 audio_size += pkt->size;
1717 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1718 video_size += pkt->size;
1719 ost->sync_opts++;
1720 }
1721
7204ec1a
AK
1722 if (pkt->pts != AV_NOPTS_VALUE)
1723 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1724 else
1725 opkt.pts = AV_NOPTS_VALUE;
1726
1727 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1728 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1729 else
1730 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1731 opkt.dts -= ost_tb_start_time;
1732
1733 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1734 opkt.flags = pkt->flags;
1735
7636c8c6
AD
1736 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1737 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1738 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1739 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1740 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1741 ) {
1742 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1743 opkt.destruct = av_destruct_packet;
1744 } else {
1745 opkt.data = pkt->data;
1746 opkt.size = pkt->size;
1747 }
1748
f15f02c2 1749 write_frame(of->ctx, &opkt, ost);
7204ec1a 1750 ost->st->codec->frame_number++;
7204ec1a
AK
1751 av_free_packet(&opkt);
1752}
1753
2a651b71
AK
1754static void rate_emu_sleep(InputStream *ist)
1755{
2e215267 1756 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1757 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1758 int64_t now = av_gettime() - ist->start;
1759 if (pts > now)
1760 usleep(pts - now);
1761 }
1762}
1763
ded28ba3
AK
1764static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1765{
d1241ff3
JR
1766 AVFrame *decoded_frame;
1767 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1768 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
ded28ba3
AK
1769 int i, ret;
1770
9179f27c 1771 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1772 return AVERROR(ENOMEM);
9179f27c
JR
1773 else
1774 avcodec_get_frame_defaults(ist->decoded_frame);
1775 decoded_frame = ist->decoded_frame;
ded28ba3 1776
d1241ff3
JR
1777 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1778 if (ret < 0) {
ded28ba3 1779 return ret;
d1241ff3 1780 }
ded28ba3 1781
ded28ba3
AK
1782 if (!*got_output) {
1783 /* no audio frame */
af8ad892 1784 return ret;
ded28ba3
AK
1785 }
1786
d1241ff3
JR
1787 /* if the decoder provides a pts, use it instead of the last packet pts.
1788 the decoder could be delaying output by a packet or more. */
1789 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1790 ist->next_dts = decoded_frame->pts;
d1241ff3 1791
3101bb66 1792 /* increment next_dts to use for the case where the input stream does not
d1241ff3 1793 have timestamps or there are multiple frames in the packet */
3101bb66 1794 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
d1241ff3 1795 avctx->sample_rate;
ded28ba3
AK
1796
1797 // preprocess audio (volume)
1798 if (audio_volume != 256) {
d1241ff3
JR
1799 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1800 void *samples = decoded_frame->data[0];
1801 switch (avctx->sample_fmt) {
ded28ba3
AK
1802 case AV_SAMPLE_FMT_U8:
1803 {
1804 uint8_t *volp = samples;
1805 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1806 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1807 *volp++ = av_clip_uint8(v);
1808 }
1809 break;
1810 }
1811 case AV_SAMPLE_FMT_S16:
1812 {
1813 int16_t *volp = samples;
1814 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1815 int v = ((*volp) * audio_volume + 128) >> 8;
1816 *volp++ = av_clip_int16(v);
1817 }
1818 break;
1819 }
1820 case AV_SAMPLE_FMT_S32:
1821 {
1822 int32_t *volp = samples;
1823 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1824 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1825 *volp++ = av_clipl_int32(v);
1826 }
1827 break;
1828 }
1829 case AV_SAMPLE_FMT_FLT:
1830 {
1831 float *volp = samples;
1832 float scale = audio_volume / 256.f;
1833 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1834 *volp++ *= scale;
1835 }
1836 break;
1837 }
1838 case AV_SAMPLE_FMT_DBL:
1839 {
1840 double *volp = samples;
1841 double scale = audio_volume / 256.;
1842 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1843 *volp++ *= scale;
1844 }
1845 break;
1846 }
1847 default:
1848 av_log(NULL, AV_LOG_FATAL,
1849 "Audio volume adjustment on sample format %s is not supported.\n",
1850 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1851 exit_program(1);
1852 }
1853 }
1854
1855 rate_emu_sleep(ist);
1856
1857 for (i = 0; i < nb_output_streams; i++) {
2e215267 1858 OutputStream *ost = output_streams[i];
ded28ba3
AK
1859
1860 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1861 continue;
2e215267 1862 do_audio_out(output_files[ost->file_index]->ctx, ost, ist, decoded_frame);
ded28ba3 1863 }
110d2af2 1864
af8ad892 1865 return ret;
ded28ba3
AK
1866}
1867
45d4b66f
AK
1868static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1869{
1870 AVFrame *decoded_frame, *filtered_frame = NULL;
1871 void *buffer_to_free = NULL;
1872 int i, ret = 0;
1873 float quality;
45d4b66f 1874 int frame_available = 1;
45d4b66f 1875
9179f27c 1876 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 1877 return AVERROR(ENOMEM);
9179f27c
JR
1878 else
1879 avcodec_get_frame_defaults(ist->decoded_frame);
1880 decoded_frame = ist->decoded_frame;
45d4b66f 1881 pkt->pts = *pkt_pts;
23576b3f 1882 pkt->dts = ist->last_dts;
45d4b66f
AK
1883 *pkt_pts = AV_NOPTS_VALUE;
1884
1885 ret = avcodec_decode_video2(ist->st->codec,
1886 decoded_frame, got_output, pkt);
1887 if (ret < 0)
9179f27c 1888 return ret;
45d4b66f
AK
1889
1890 quality = same_quant ? decoded_frame->quality : 0;
1891 if (!*got_output) {
1892 /* no picture yet */
af8ad892 1893 return ret;
45d4b66f 1894 }
b34856a1
AK
1895 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1896 decoded_frame->pkt_dts);
45d4b66f
AK
1897 pkt->size = 0;
1898 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1899
1900 rate_emu_sleep(ist);
1901
695ec04e
AK
1902 if (ist->st->sample_aspect_ratio.num)
1903 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1904
45d4b66f 1905 for (i = 0; i < nb_output_streams; i++) {
2e215267 1906 OutputStream *ost = output_streams[i];
ac646076 1907 int frame_size, resample_changed;
45d4b66f
AK
1908
1909 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1910 continue;
1911
ac646076
AK
1912 resample_changed = ost->resample_width != decoded_frame->width ||
1913 ost->resample_height != decoded_frame->height ||
1914 ost->resample_pix_fmt != decoded_frame->format;
1915 if (resample_changed) {
1916 av_log(NULL, AV_LOG_INFO,
1917 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1918 ist->file_index, ist->st->index,
1919 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1920 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1921
1922 avfilter_graph_free(&ost->graph);
1923 if (configure_video_filters(ist, ost)) {
1924 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1925 exit_program(1);
1926 }
1927
1928 ost->resample_width = decoded_frame->width;
1929 ost->resample_height = decoded_frame->height;
1930 ost->resample_pix_fmt = decoded_frame->format;
1931 }
1932
04a14d4d
AK
1933 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1934 FrameBuffer *buf = decoded_frame->opaque;
1935 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1936 decoded_frame->data, decoded_frame->linesize,
1937 AV_PERM_READ | AV_PERM_PRESERVE,
1938 ist->st->codec->width, ist->st->codec->height,
1939 ist->st->codec->pix_fmt);
1940
1941 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
1942 fb->buf->priv = buf;
1943 fb->buf->free = filter_release_buffer;
1944
1945 buf->refcount++;
1946 av_buffersrc_buffer(ost->input_video_filter, fb);
1947 } else
1948 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
6e983902 1949 decoded_frame->pts, decoded_frame->sample_aspect_ratio);
04a14d4d
AK
1950
1951 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
ce326c11
AK
1952 ret = AVERROR(ENOMEM);
1953 goto fail;
04a14d4d
AK
1954 } else
1955 avcodec_get_frame_defaults(ist->filtered_frame);
1956 filtered_frame = ist->filtered_frame;
1957
1958 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
45d4b66f 1959 while (frame_available) {
b6c4518a 1960 AVFilterBufferRef *picref;
45d4b66f 1961 AVRational ist_pts_tb;
ce326c11 1962 if ((ret = get_filtered_video_frame(ost->output_video_filter,
b6c4518a 1963 filtered_frame, &picref,
ce326c11
AK
1964 &ist_pts_tb)) < 0)
1965 goto fail;
b6c4518a 1966 filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
25142298 1967 if (!ost->frame_aspect_ratio)
b6c4518a 1968 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
45d4b66f 1969
2e215267 1970 do_video_out(output_files[ost->file_index]->ctx, ost, filtered_frame, &frame_size,
45d4b66f
AK
1971 same_quant ? quality : ost->st->codec->global_quality);
1972 if (vstats_filename && frame_size)
2e215267 1973 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
45d4b66f 1974 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
b6c4518a 1975 avfilter_unref_buffer(picref);
45d4b66f 1976 }
45d4b66f
AK
1977 }
1978
ce326c11 1979fail:
45d4b66f 1980 av_free(buffer_to_free);
45d4b66f
AK
1981 return ret;
1982}
1983
9595234c
AK
1984static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1985{
1986 AVSubtitle subtitle;
1987 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1988 &subtitle, got_output, pkt);
1989 if (ret < 0)
1990 return ret;
1991 if (!*got_output)
af8ad892 1992 return ret;
9595234c
AK
1993
1994 rate_emu_sleep(ist);
1995
1996 for (i = 0; i < nb_output_streams; i++) {
2e215267 1997 OutputStream *ost = output_streams[i];
9595234c
AK
1998
1999 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2000 continue;
2001
2e215267 2002 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
2003 }
2004
2005 avsubtitle_free(&subtitle);
af8ad892 2006 return ret;
9595234c
AK
2007}
2008
6291d7e4 2009/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 2010static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 2011{
ffa0674e 2012 int i;
6291d7e4 2013 int got_output;
6291d7e4 2014 int64_t pkt_pts = AV_NOPTS_VALUE;
6291d7e4 2015 AVPacket avpkt;
6291d7e4 2016
3101bb66 2017 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2018 ist->next_dts = ist->last_dts;
6291d7e4
AK
2019
2020 if (pkt == NULL) {
2021 /* EOF handling */
2022 av_init_packet(&avpkt);
2023 avpkt.data = NULL;
2024 avpkt.size = 0;
2025 goto handle_eof;
2026 } else {
2027 avpkt = *pkt;
2028 }
2029
7636c8c6 2030 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2031 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
7636c8c6 2032 if (pkt->pts != AV_NOPTS_VALUE)
6291d7e4
AK
2033 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2034
7636c8c6 2035 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2036 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2037 int ret = 0;
6291d7e4 2038 handle_eof:
6291d7e4 2039
23576b3f 2040 ist->last_dts = ist->next_dts;
8b0268a8
AK
2041
2042 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2043 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2044 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2045 ist->showed_multi_packet_warning = 1;
2046 }
6291d7e4 2047
7636c8c6 2048 switch (ist->st->codec->codec_type) {
82963f8f
AK
2049 case AVMEDIA_TYPE_AUDIO:
2050 ret = transcode_audio (ist, &avpkt, &got_output);
2051 break;
2052 case AVMEDIA_TYPE_VIDEO:
2053 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
b34856a1
AK
2054 if (avpkt.duration)
2055 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
722410ad
AK
2056 else if (ist->st->r_frame_rate.num)
2057 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2058 ist->st->r_frame_rate.num},
2059 AV_TIME_BASE_Q);
b34856a1
AK
2060 else if (ist->st->codec->time_base.num != 0) {
2061 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2062 ist->st->codec->ticks_per_frame;
2063 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2064 }
82963f8f
AK
2065 break;
2066 case AVMEDIA_TYPE_SUBTITLE:
2067 ret = transcode_subtitles(ist, &avpkt, &got_output);
2068 break;
78162b4e
AK
2069 default:
2070 return -1;
2071 }
6291d7e4 2072
d3c1d37a
AK
2073 if (ret < 0)
2074 return ret;
aa38cff2
JG
2075 // touch data and size only if not EOF
2076 if (pkt) {
2077 avpkt.data += ret;
2078 avpkt.size -= ret;
2079 }
82963f8f 2080 if (!got_output) {
af8ad892 2081 continue;
82963f8f 2082 }
6291d7e4 2083 }
6291d7e4 2084
7204ec1a 2085 /* handle stream copy */
2a651b71
AK
2086 if (!ist->decoding_needed) {
2087 rate_emu_sleep(ist);
23576b3f 2088 ist->last_dts = ist->next_dts;
2a651b71
AK
2089 switch (ist->st->codec->codec_type) {
2090 case AVMEDIA_TYPE_AUDIO:
3101bb66 2091 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2092 ist->st->codec->sample_rate;
2093 break;
2094 case AVMEDIA_TYPE_VIDEO:
2095 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2096 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2097 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2098 ist->st->codec->time_base.num * ticks) /
2099 ist->st->codec->time_base.den;
2100 }
2101 break;
2102 }
2103 }
ea9367e9 2104 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 2105 OutputStream *ost = output_streams[i];
7204ec1a
AK
2106
2107 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2108 continue;
2109
2110 do_streamcopy(ist, ost, pkt);
2111 }
2112
6291d7e4
AK
2113 return 0;
2114}
2115
ea9367e9 2116static void print_sdp(void)
6291d7e4
AK
2117{
2118 char sdp[2048];
af70aa45 2119 int i;
ea9367e9 2120 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2121
2122 if (!avc)
2123 exit_program(1);
ea9367e9 2124 for (i = 0; i < nb_output_files; i++)
2e215267 2125 avc[i] = output_files[i]->ctx;
6291d7e4 2126
ea9367e9 2127 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2128 printf("SDP:\n%s\n", sdp);
2129 fflush(stdout);
af70aa45 2130 av_freep(&avc);
6291d7e4
AK
2131}
2132
d3c59d50
JR
2133static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
2134{
2135 char layout_name[256];
2136 AVCodecContext *enc = ost->st->codec;
2137 AVCodecContext *dec = ist->st->codec;
2138
2139 if (!dec->channel_layout) {
2140 if (enc->channel_layout && dec->channels == enc->channels) {
2141 dec->channel_layout = enc->channel_layout;
2142 } else {
2143 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2144
2145 if (!dec->channel_layout) {
2146 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2147 "layout for Input Stream #%d.%d\n", ist->file_index,
2148 ist->st->index);
2149 exit_program(1);
2150 }
2151 }
2152 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2153 dec->channels, dec->channel_layout);
2154 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2155 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2156 }
2157 if (!enc->channel_layout) {
2158 if (dec->channels == enc->channels) {
2159 enc->channel_layout = dec->channel_layout;
2160 return;
2161 } else {
2162 enc->channel_layout = av_get_default_channel_layout(enc->channels);
2163 }
2164 if (!enc->channel_layout) {
2165 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
2166 "for Output Stream #%d.%d\n", ost->file_index,
2167 ost->st->index);
2168 exit_program(1);
2169 }
2170 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2171 enc->channels, enc->channel_layout);
2172 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
2173 "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
2174 }
2175}
2176
2177
ea9367e9 2178static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2179{
2180 int i;
2e215267 2181 InputStream *ist = input_streams[ist_index];
630902a1
AK
2182 if (ist->decoding_needed) {
2183 AVCodec *codec = ist->dec;
630902a1 2184 if (!codec) {
9a414d89 2185 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2186 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2187 return AVERROR(EINVAL);
2188 }
2189
2190 /* update requested sample format for the decoder based on the
2191 corresponding encoder sample format */
2192 for (i = 0; i < nb_output_streams; i++) {
2e215267 2193 OutputStream *ost = output_streams[i];
630902a1
AK
2194 if (ost->source_index == ist_index) {
2195 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2196 break;
2197 }
2198 }
2199
64dca32c
AK
2200 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2201 ist->st->codec->get_buffer = codec_get_buffer;
2202 ist->st->codec->release_buffer = codec_release_buffer;
2203 ist->st->codec->opaque = ist;
2204 }
2205
2473a45c
JG
2206 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2207 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2208 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2209 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2210 ist->file_index, ist->st->index);
2211 return AVERROR(EINVAL);
2212 }
2213 assert_codec_experimental(ist->st->codec, 0);
2214 assert_avoptions(ist->opts);
d3c59d50
JR
2215
2216 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2217 for (i = 0; i < nb_output_streams; i++) {
2e215267 2218 OutputStream *ost = output_streams[i];
d3c59d50
JR
2219 if (ost->source_index == ist_index) {
2220 if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
2221 get_default_channel_layouts(ost, ist);
2222 break;
2223 }
2224 }
2225 }
630902a1
AK
2226 }
2227
23576b3f 2228 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 2229 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2230 init_pts_correction(&ist->pts_ctx);
2231 ist->is_start = 1;
2232
2233 return 0;
2234}
2235
ea9367e9 2236static int transcode_init(void)
6291d7e4 2237{
2c474ddb 2238 int ret = 0, i, j, k;
1bb77e51 2239 AVFormatContext *oc;
6291d7e4 2240 AVCodecContext *codec, *icodec;
4288e031 2241 OutputStream *ost;
6291d7e4
AK
2242 InputStream *ist;
2243 char error[1024];
2244 int want_sdp = 1;
b0c9e8e0 2245
f4805328
AK
2246 /* init framerate emulation */
2247 for (i = 0; i < nb_input_files; i++) {
2e215267 2248 InputFile *ifile = input_files[i];
f4805328
AK
2249 if (ifile->rate_emu)
2250 for (j = 0; j < ifile->nb_streams; j++)
2e215267 2251 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 2252 }
6291d7e4
AK
2253
2254 /* output stream init */
03f30c83 2255 for (i = 0; i < nb_output_files; i++) {
2e215267 2256 oc = output_files[i]->ctx;
1bb77e51
AK
2257 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2258 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2259 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2260 return AVERROR(EINVAL);
6291d7e4 2261 }
6291d7e4
AK
2262 }
2263
2264 /* for each output stream, we compute the right encoding parameters */
4288e031 2265 for (i = 0; i < nb_output_streams; i++) {
2e215267
AK
2266 ost = output_streams[i];
2267 oc = output_files[ost->file_index]->ctx;
2268 ist = input_streams[ost->source_index];
6291d7e4 2269
4dbc6cee
AK
2270 if (ost->attachment_filename)
2271 continue;
2272
03f30c83 2273 codec = ost->st->codec;
6291d7e4
AK
2274 icodec = ist->st->codec;
2275
03f30c83
AK
2276 ost->st->disposition = ist->st->disposition;
2277 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
6291d7e4
AK
2278 codec->chroma_sample_location = icodec->chroma_sample_location;
2279
3d813e4c 2280 if (ost->stream_copy) {
6291d7e4
AK
2281 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2282
e6d2b737 2283 if (extra_size > INT_MAX) {
eaf2d37a 2284 return AVERROR(EINVAL);
e6d2b737 2285 }
6291d7e4
AK
2286
2287 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2288 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2289 codec->codec_type = icodec->codec_type;
2290
03f30c83
AK
2291 if (!codec->codec_tag) {
2292 if (!oc->oformat->codec_tag ||
2293 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2294 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2295 codec->codec_tag = icodec->codec_tag;
2296 }
2297
03f30c83 2298 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2299 codec->rc_max_rate = icodec->rc_max_rate;
2300 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2301 codec->field_order = icodec->field_order;
03f30c83 2302 codec->extradata = av_mallocz(extra_size);
e6d2b737 2303 if (!codec->extradata) {
eaf2d37a 2304 return AVERROR(ENOMEM);
e6d2b737 2305 }
6291d7e4 2306 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2307 codec->extradata_size = icodec->extradata_size;
7bb3e625 2308 if (!copy_tb) {
03f30c83 2309 codec->time_base = icodec->time_base;
6291d7e4
AK
2310 codec->time_base.num *= icodec->ticks_per_frame;
2311 av_reduce(&codec->time_base.num, &codec->time_base.den,
2312 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2313 } else
6291d7e4 2314 codec->time_base = ist->st->time_base;
03f30c83 2315
7636c8c6 2316 switch (codec->codec_type) {
6291d7e4 2317 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2318 if (audio_volume != 256) {
e3245b26 2319 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2320 exit_program(1);
2321 }
03f30c83
AK
2322 codec->channel_layout = icodec->channel_layout;
2323 codec->sample_rate = icodec->sample_rate;
2324 codec->channels = icodec->channels;
2325 codec->frame_size = icodec->frame_size;
6291d7e4 2326 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2327 codec->block_align = icodec->block_align;
6291d7e4
AK
2328 break;
2329 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2330 codec->pix_fmt = icodec->pix_fmt;
2331 codec->width = icodec->width;
2332 codec->height = icodec->height;
2333 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2334 if (!codec->sample_aspect_ratio.num) {
03f30c83 2335 codec->sample_aspect_ratio =
6291d7e4
AK
2336 ost->st->sample_aspect_ratio =
2337 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2338 ist->st->codec->sample_aspect_ratio.num ?
2339 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2340 }
2341 break;
2342 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2343 codec->width = icodec->width;
6291d7e4
AK
2344 codec->height = icodec->height;
2345 break;
2346 case AVMEDIA_TYPE_DATA:
3ccd1580 2347 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2348 break;
2349 default:
2350 abort();
2351 }
2352 } else {
2353 if (!ost->enc)
2354 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
03f30c83 2355
11fdb7e1
AK
2356 ist->decoding_needed = 1;
2357 ost->encoding_needed = 1;
03f30c83 2358
7636c8c6 2359 switch (codec->codec_type) {
6291d7e4 2360 case AVMEDIA_TYPE_AUDIO:
03f30c83 2361 ost->fifo = av_fifo_alloc(1024);
e6d2b737 2362 if (!ost->fifo) {
eaf2d37a 2363 return AVERROR(ENOMEM);
e6d2b737 2364 }
6291d7e4 2365 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
03f30c83 2366
d0a19696 2367 if (!codec->sample_rate)
6291d7e4 2368 codec->sample_rate = icodec->sample_rate;
6291d7e4 2369 choose_sample_rate(ost->st, ost->enc);
7636c8c6 2370 codec->time_base = (AVRational){ 1, codec->sample_rate };
03f30c83 2371
6291d7e4
AK
2372 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2373 codec->sample_fmt = icodec->sample_fmt;
2374 choose_sample_fmt(ost->st, ost->enc);
03f30c83 2375
6291d7e4
AK
2376 if (!codec->channels)
2377 codec->channels = icodec->channels;
2378 codec->channel_layout = icodec->channel_layout;
2379 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2380 codec->channel_layout = 0;
03f30c83
AK
2381
2382 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2383 icodec->request_channels = codec-> channels;
6291d7e4
AK
2384 ost->resample_sample_fmt = icodec->sample_fmt;
2385 ost->resample_sample_rate = icodec->sample_rate;
2386 ost->resample_channels = icodec->channels;
2387 break;
2388 case AVMEDIA_TYPE_VIDEO:
6291d7e4
AK
2389 if (!codec->width || !codec->height) {
2390 codec->width = icodec->width;
2391 codec->height = icodec->height;
2392 }
2393
832ba44d
AK
2394 /*
2395 * We want CFR output if and only if one of those is true:
2396 * 1) user specified output framerate with -r
2397 * 2) user specified -vsync cfr
2398 * 3) output format is CFR and the user didn't force vsync to
2399 * something else than CFR
2400 *
2401 * in such a case, set ost->frame_rate
2402 */
2403 if (!ost->frame_rate.num &&
2404 (video_sync_method == VSYNC_CFR ||
2405 (video_sync_method == VSYNC_AUTO &&
2406 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2407 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2408 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2409 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2410 ost->frame_rate = ost->enc->supported_framerates[idx];
2411 }
6291d7e4 2412 }
832ba44d
AK
2413 if (ost->frame_rate.num) {
2414 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2415 video_sync_method = VSYNC_CFR;
2416 } else
2417 codec->time_base = ist->st->time_base;
6291d7e4 2418
6291d7e4 2419 if (configure_video_filters(ist, ost)) {
e3245b26 2420 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
6291d7e4
AK
2421 exit(1);
2422 }
b7327887 2423
9dced854
AK
2424 if (codec->width != icodec->width ||
2425 codec->height != icodec->height ||
2426 codec->pix_fmt != icodec->pix_fmt) {
b7327887
AK
2427 codec->bits_per_raw_sample = 0;
2428 }
2429
2430 ost->resample_height = icodec->height;
2431 ost->resample_width = icodec->width;
2432 ost->resample_pix_fmt = icodec->pix_fmt;
2433
6291d7e4
AK
2434 break;
2435 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2436 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2437 break;
2438 default:
2439 abort();
2440 break;
2441 }
2442 /* two pass mode */
515901fa 2443 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2444 char logfilename[1024];
2445 FILE *f;
2446
2447 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2448 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2449 i);
6e8be949
AK
2450 if (!strcmp(ost->enc->name, "libx264")) {
2451 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2452 } else {
64334ddb
AK
2453 if (codec->flags & CODEC_FLAG_PASS1) {
2454 f = fopen(logfilename, "wb");
2455 if (!f) {
2456 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2457 logfilename, strerror(errno));
2458 exit_program(1);
2459 }
2460 ost->logfile = f;
2461 } else {
2462 char *logbuffer;
2463 size_t logbuffer_size;
2464 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2465 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2466 logfilename);
2467 exit_program(1);
2468 }
2469 codec->stats_in = logbuffer;
6291d7e4 2470 }
6e8be949 2471 }
6291d7e4
AK
2472 }
2473 }
6291d7e4
AK
2474 }
2475
2476 /* open each encoder */
4288e031 2477 for (i = 0; i < nb_output_streams; i++) {
2e215267 2478 ost = output_streams[i];
6291d7e4 2479 if (ost->encoding_needed) {
03f30c83 2480 AVCodec *codec = ost->enc;
2e215267 2481 AVCodecContext *dec = input_streams[ost->source_index]->st->codec;
6291d7e4 2482 if (!codec) {
9a414d89 2483 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
6291d7e4
AK
2484 ost->st->codec->codec_id, ost->file_index, ost->index);
2485 ret = AVERROR(EINVAL);
2486 goto dump_format;
2487 }
2488 if (dec->subtitle_header) {
2489 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2490 if (!ost->st->codec->subtitle_header) {
2491 ret = AVERROR(ENOMEM);
2492 goto dump_format;
2493 }
2494 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2495 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2496 }
2473a45c
JG
2497 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2498 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2499 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2500 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
2501 ost->file_index, ost->index);
2502 ret = AVERROR(EINVAL);
2503 goto dump_format;
2504 }
2505 assert_codec_experimental(ost->st->codec, 1);
2506 assert_avoptions(ost->opts);
2507 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2508 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2509 "It takes bits/s as argument, not kbits/s\n");
2510 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2511
2512 if (ost->st->codec->me_threshold)
2e215267 2513 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2514 }
2515 }
2516
630902a1
AK
2517 /* init input streams */
2518 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2519 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2520 goto dump_format;
6291d7e4 2521
2c474ddb
AK
2522 /* discard unused programs */
2523 for (i = 0; i < nb_input_files; i++) {
2e215267 2524 InputFile *ifile = input_files[i];
2c474ddb
AK
2525 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2526 AVProgram *p = ifile->ctx->programs[j];
2527 int discard = AVDISCARD_ALL;
2528
2529 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2530 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2531 discard = AVDISCARD_DEFAULT;
2532 break;
2533 }
2534 p->discard = discard;
2535 }
2536 }
2537
6291d7e4 2538 /* open files and write file headers */
af70aa45 2539 for (i = 0; i < nb_output_files; i++) {
2e215267 2540 oc = output_files[i]->ctx;
1bb77e51 2541 oc->interrupt_callback = int_cb;
2e215267 2542 if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
6291d7e4
AK
2543 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2544 ret = AVERROR(EINVAL);
2545 goto dump_format;
2546 }
2e215267 2547 assert_avoptions(output_files[i]->opts);
1bb77e51 2548 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2549 want_sdp = 0;
2550 }
2551 }
2552
2553 dump_format:
2554 /* dump the file output parameters - cannot be done before in case
2555 of stream copy */
03f30c83 2556 for (i = 0; i < nb_output_files; i++) {
2e215267 2557 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2558 }
2559
2560 /* dump the stream mapping */
e3245b26
AK
2561 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2562 for (i = 0; i < nb_output_streams; i++) {
2e215267 2563 ost = output_streams[i];
4dbc6cee
AK
2564
2565 if (ost->attachment_filename) {
2566 /* an attached file */
2567 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2568 ost->attachment_filename, ost->file_index, ost->index);
2569 continue;
2570 }
9a414d89 2571 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2572 input_streams[ost->source_index]->file_index,
2573 input_streams[ost->source_index]->st->index,
e3245b26
AK
2574 ost->file_index,
2575 ost->index);
2e215267 2576 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2577 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2578 ost->sync_ist->file_index,
2579 ost->sync_ist->st->index);
3d813e4c 2580 if (ost->stream_copy)
e3245b26
AK
2581 av_log(NULL, AV_LOG_INFO, " (copy)");
2582 else
2e215267
AK
2583 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2584 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2585 ost->enc ? ost->enc->name : "?");
2586 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2587 }
2588
2589 if (ret) {
e3245b26 2590 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2591 return ret;
6291d7e4
AK
2592 }
2593
2594 if (want_sdp) {
ea9367e9 2595 print_sdp();
6291d7e4
AK
2596 }
2597
eaf2d37a
AC
2598 return 0;
2599}
2600
2601/*
2602 * The following code is the main loop of the file converter
2603 */
ea9367e9 2604static int transcode(void)
eaf2d37a
AC
2605{
2606 int ret, i;
2607 AVFormatContext *is, *os;
2608 OutputStream *ost;
2609 InputStream *ist;
2610 uint8_t *no_packet;
7636c8c6 2611 int no_packet_count = 0;
eaf2d37a
AC
2612 int64_t timer_start;
2613
2614 if (!(no_packet = av_mallocz(nb_input_files)))
2615 exit_program(1);
2616
ea9367e9 2617 ret = transcode_init();
eaf2d37a
AC
2618 if (ret < 0)
2619 goto fail;
2620
e3245b26 2621 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2622 term_init();
2623
2624 timer_start = av_gettime();
2625
7636c8c6 2626 for (; received_sigterm == 0;) {
6291d7e4
AK
2627 int file_index, ist_index;
2628 AVPacket pkt;
9be3c124 2629 int64_t ipts_min;
6291d7e4
AK
2630 double opts_min;
2631
9be3c124 2632 ipts_min = INT64_MAX;
7636c8c6 2633 opts_min = 1e100;
6291d7e4
AK
2634
2635 /* select the stream that we must read now by looking at the
2636 smallest output pts */
2637 file_index = -1;
4288e031 2638 for (i = 0; i < nb_output_streams; i++) {
f21f294e 2639 OutputFile *of;
9be3c124
AC
2640 int64_t ipts;
2641 double opts;
2e215267
AK
2642 ost = output_streams[i];
2643 of = output_files[ost->file_index];
2644 os = output_files[ost->file_index]->ctx;
2645 ist = input_streams[ost->source_index];
f21f294e
AK
2646 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2647 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
6291d7e4 2648 continue;
c0931508 2649 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
23576b3f 2650 ipts = ist->last_dts;
2e215267 2651 if (!input_files[ist->file_index]->eof_reached) {
7636c8c6 2652 if (ipts < ipts_min) {
6291d7e4 2653 ipts_min = ipts;
7636c8c6
AD
2654 if (input_sync)
2655 file_index = ist->file_index;
6291d7e4 2656 }
7636c8c6 2657 if (opts < opts_min) {
6291d7e4 2658 opts_min = opts;
7636c8c6 2659 if (!input_sync) file_index = ist->file_index;
6291d7e4
AK
2660 }
2661 }
96139b5e
AK
2662 if (ost->frame_number >= ost->max_frames) {
2663 int j;
9b921a82 2664 for (j = 0; j < of->ctx->nb_streams; j++)
2e215267 2665 output_streams[of->ost_index + j]->is_past_recording_time = 1;
96139b5e 2666 continue;
6291d7e4
AK
2667 }
2668 }
2669 /* if none, if is finished */
2670 if (file_index < 0) {
7636c8c6
AD
2671 if (no_packet_count) {
2672 no_packet_count = 0;
b0c9e8e0 2673 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2674 usleep(10000);
2675 continue;
2676 }
2677 break;
2678 }
2679
6291d7e4 2680 /* read a frame from it and output it in the fifo */
2e215267 2681 is = input_files[file_index]->ctx;
7636c8c6
AD
2682 ret = av_read_frame(is, &pkt);
2683 if (ret == AVERROR(EAGAIN)) {
2684 no_packet[file_index] = 1;
6291d7e4
AK
2685 no_packet_count++;
2686 continue;
2687 }
2688 if (ret < 0) {
2e215267 2689 input_files[file_index]->eof_reached = 1;
6291d7e4
AK
2690 if (opt_shortest)
2691 break;
2692 else
2693 continue;
2694 }
2695
7636c8c6 2696 no_packet_count = 0;
b0c9e8e0 2697 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2698
2699 if (do_pkt_dump) {
2700 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2701 is->streams[pkt.stream_index]);
2702 }
2703 /* the following test is needed in case new streams appear
2704 dynamically in stream : we ignore them */
2e215267 2705 if (pkt.stream_index >= input_files[file_index]->nb_streams)
6291d7e4 2706 goto discard_packet;
2e215267
AK
2707 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2708 ist = input_streams[ist_index];
6291d7e4
AK
2709 if (ist->discard)
2710 goto discard_packet;
2711
2712 if (pkt.dts != AV_NOPTS_VALUE)
2e215267 2713 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2714 if (pkt.pts != AV_NOPTS_VALUE)
2e215267 2715 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
6291d7e4 2716
7636c8c6 2717 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 2718 pkt.pts *= ist->ts_scale;
7636c8c6 2719 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 2720 pkt.dts *= ist->ts_scale;
6291d7e4 2721
7636c8c6 2722 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 2723 // ist->next_dts,
7636c8c6
AD
2724 // pkt.dts, input_files[ist->file_index].ts_offset,
2725 // ist->st->codec->codec_type);
3101bb66 2726 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 2727 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 2728 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 2729 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 2730 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2e215267 2731 input_files[ist->file_index]->ts_offset -= delta;
7636c8c6
AD
2732 av_log(NULL, AV_LOG_DEBUG,
2733 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2e215267 2734 delta, input_files[ist->file_index]->ts_offset);
6291d7e4 2735 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 2736 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
2737 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2738 }
2739 }
2740
7636c8c6 2741 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
ea9367e9 2742 if (output_packet(ist, &pkt) < 0) {
6291d7e4 2743
9a414d89 2744 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 2745 ist->file_index, ist->st->index);
6291d7e4
AK
2746 if (exit_on_error)
2747 exit_program(1);
2748 av_free_packet(&pkt);
b9630bcf 2749 continue;
6291d7e4
AK
2750 }
2751
2752 discard_packet:
2753 av_free_packet(&pkt);
2754
2755 /* dump report by using the output first video and audio streams */
ea9367e9 2756 print_report(0, timer_start);
6291d7e4
AK
2757 }
2758
2759 /* at the end of stream, we must flush the decoder buffers */
2760 for (i = 0; i < nb_input_streams; i++) {
2e215267 2761 ist = input_streams[i];
6291d7e4 2762 if (ist->decoding_needed) {
ea9367e9 2763 output_packet(ist, NULL);
6291d7e4
AK
2764 }
2765 }
ea9367e9 2766 flush_encoders();
6291d7e4
AK
2767
2768 term_exit();
2769
2770 /* write the trailer if needed and close file */
7636c8c6 2771 for (i = 0; i < nb_output_files; i++) {
2e215267 2772 os = output_files[i]->ctx;
6291d7e4
AK
2773 av_write_trailer(os);
2774 }
2775
2776 /* dump report by using the first video and audio streams */
ea9367e9 2777 print_report(1, timer_start);
6291d7e4
AK
2778
2779 /* close each encoder */
4288e031 2780 for (i = 0; i < nb_output_streams; i++) {
2e215267 2781 ost = output_streams[i];
6291d7e4
AK
2782 if (ost->encoding_needed) {
2783 av_freep(&ost->st->codec->stats_in);
2784 avcodec_close(ost->st->codec);
2785 }
6291d7e4 2786 avfilter_graph_free(&ost->graph);
6291d7e4
AK
2787 }
2788
2789 /* close each decoder */
2790 for (i = 0; i < nb_input_streams; i++) {
2e215267 2791 ist = input_streams[i];
6291d7e4
AK
2792 if (ist->decoding_needed) {
2793 avcodec_close(ist->st->codec);
2794 }
2795 }
2796
2797 /* finished ! */
2798 ret = 0;
2799
2800 fail:
b0c9e8e0 2801 av_freep(&no_packet);
6291d7e4 2802
4288e031
AK
2803 if (output_streams) {
2804 for (i = 0; i < nb_output_streams; i++) {
2e215267 2805 ost = output_streams[i];
6291d7e4 2806 if (ost) {
3d813e4c 2807 if (ost->stream_copy)
6291d7e4
AK
2808 av_freep(&ost->st->codec->extradata);
2809 if (ost->logfile) {
2810 fclose(ost->logfile);
2811 ost->logfile = NULL;
2812 }
2813 av_fifo_free(ost->fifo); /* works even if fifo is not
2814 initialized but set to zero */
2815 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2816 av_free(ost->forced_kf_pts);
6291d7e4
AK
2817 if (ost->resample)
2818 audio_resample_close(ost->resample);
2819 if (ost->reformat_ctx)
2820 av_audio_convert_free(ost->reformat_ctx);
2821 av_dict_free(&ost->opts);
6291d7e4
AK
2822 }
2823 }
6291d7e4
AK
2824 }
2825 return ret;
2826}
2827
ca46fde7 2828static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
2829{
2830 int x = 0, y = 0;
2831 double ar = 0;
2832 const char *p;
2833 char *end;
2834
2835 p = strchr(arg, ':');
2836 if (p) {
2837 x = strtol(arg, &end, 10);
2838 if (end == p)
7636c8c6 2839 y = strtol(end + 1, &end, 10);
6291d7e4
AK
2840 if (x > 0 && y > 0)
2841 ar = (double)x / (double)y;
2842 } else
2843 ar = strtod(arg, NULL);
2844
2845 if (!ar) {
e3245b26 2846 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 2847 exit_program(1);
6291d7e4 2848 }
ca46fde7 2849 return ar;
6291d7e4
AK
2850}
2851
35e6f8c1 2852static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2853{
35e6f8c1 2854 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
2855}
2856
35e6f8c1 2857static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2858{
35e6f8c1 2859 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
2860}
2861
35e6f8c1 2862static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2863{
35e6f8c1 2864 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
2865}
2866
35e6f8c1 2867static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2868{
35e6f8c1 2869 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
2870}
2871
575ec4e1 2872static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2873{
8d2e4a7e
AK
2874 StreamMap *m = NULL;
2875 int i, negative = 0, file_idx;
2876 int sync_file_idx = -1, sync_stream_idx;
2877 char *p, *sync;
2878 char *map;
6291d7e4 2879
8d2e4a7e
AK
2880 if (*arg == '-') {
2881 negative = 1;
2882 arg++;
2883 }
2884 map = av_strdup(arg);
6291d7e4 2885
8d2e4a7e
AK
2886 /* parse sync stream first, just pick first matching stream */
2887 if (sync = strchr(map, ',')) {
2888 *sync = 0;
2889 sync_file_idx = strtol(sync + 1, &sync, 0);
2890 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 2891 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
2892 exit_program(1);
2893 }
2894 if (*sync)
2895 sync++;
2e215267
AK
2896 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
2897 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
2898 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
8d2e4a7e
AK
2899 sync_stream_idx = i;
2900 break;
2901 }
2e215267 2902 if (i == input_files[sync_file_idx]->nb_streams) {
f24facd3 2903 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
2904 "match any streams.\n", arg);
2905 exit_program(1);
2906 }
2907 }
6291d7e4 2908
8d2e4a7e
AK
2909
2910 file_idx = strtol(map, &p, 0);
2911 if (file_idx >= nb_input_files || file_idx < 0) {
f24facd3 2912 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
8d2e4a7e 2913 exit_program(1);
6291d7e4 2914 }
8d2e4a7e
AK
2915 if (negative)
2916 /* disable some already defined maps */
575ec4e1
AK
2917 for (i = 0; i < o->nb_stream_maps; i++) {
2918 m = &o->stream_maps[i];
e6674f68 2919 if (file_idx == m->file_index &&
2e215267
AK
2920 check_stream_specifier(input_files[m->file_index]->ctx,
2921 input_files[m->file_index]->ctx->streams[m->stream_index],
8d2e4a7e
AK
2922 *p == ':' ? p + 1 : p) > 0)
2923 m->disabled = 1;
2924 }
2925 else
2e215267
AK
2926 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
2927 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
8d2e4a7e
AK
2928 *p == ':' ? p + 1 : p) <= 0)
2929 continue;
575ec4e1
AK
2930 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2931 &o->nb_stream_maps, o->nb_stream_maps + 1);
2932 m = &o->stream_maps[o->nb_stream_maps - 1];
8d2e4a7e
AK
2933
2934 m->file_index = file_idx;
2935 m->stream_index = i;
2936
2937 if (sync_file_idx >= 0) {
2938 m->sync_file_index = sync_file_idx;
2939 m->sync_stream_index = sync_stream_idx;
2940 } else {
2941 m->sync_file_index = file_idx;
2942 m->sync_stream_index = i;
2943 }
2944 }
2945
2946 if (!m) {
f24facd3 2947 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
2948 exit_program(1);
2949 }
2950
2951 av_freep(&map);
6291d7e4
AK
2952 return 0;
2953}
2954
4dbc6cee
AK
2955static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2956{
2957 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2958 &o->nb_attachments, o->nb_attachments + 1);
2959 o->attachments[o->nb_attachments - 1] = arg;
2960 return 0;
2961}
2962
a7b5e841
AK
2963/**
2964 * Parse a metadata specifier in arg.
2965 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2966 * @param index for type c/p, chapter/program index is written here
2967 * @param stream_spec for type s, the stream specifier is written here
2968 */
2969static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 2970{
039267f1 2971 if (*arg) {
a2a38d96 2972 *type = *arg;
6291d7e4
AK
2973 switch (*arg) {
2974 case 'g':
2975 break;
2976 case 's':
a7b5e841
AK
2977 if (*(++arg) && *arg != ':') {
2978 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2979 exit_program(1);
2980 }
2981 *stream_spec = *arg == ':' ? arg + 1 : "";
2982 break;
6291d7e4
AK
2983 case 'c':
2984 case 'p':
e6e6060c
AK
2985 if (*(++arg) == ':')
2986 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
2987 break;
2988 default:
e3245b26 2989 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
2990 exit_program(1);
2991 }
2992 } else
2993 *type = 'g';
2994}
2995
a7b5e841 2996static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 2997{
a7b5e841
AK
2998 AVDictionary **meta_in = NULL;
2999 AVDictionary **meta_out;
3000 int i, ret = 0;
3001 char type_in, type_out;
3002 const char *istream_spec = NULL, *ostream_spec = NULL;
3003 int idx_in = 0, idx_out = 0;
6291d7e4 3004
a7b5e841
AK
3005 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3006 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3007
a7b5e841 3008 if (type_in == 'g' || type_out == 'g')
847529f8 3009 o->metadata_global_manual = 1;
a7b5e841 3010 if (type_in == 's' || type_out == 's')
847529f8 3011 o->metadata_streams_manual = 1;
a7b5e841 3012 if (type_in == 'c' || type_out == 'c')
847529f8 3013 o->metadata_chapters_manual = 1;
6291d7e4 3014
a7b5e841
AK
3015#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3016 if ((index) < 0 || (index) >= (nb_elems)) {\
3017 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3018 (desc), (index));\
3019 exit_program(1);\
3020 }
3021
3022#define SET_DICT(type, meta, context, index)\
3023 switch (type) {\
3024 case 'g':\
3025 meta = &context->metadata;\
3026 break;\
3027 case 'c':\
3028 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3029 meta = &context->chapters[index]->metadata;\
3030 break;\
3031 case 'p':\
3032 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3033 meta = &context->programs[index]->metadata;\
3034 break;\
3035 }\
3036
3037 SET_DICT(type_in, meta_in, ic, idx_in);
3038 SET_DICT(type_out, meta_out, oc, idx_out);
3039
3040 /* for input streams choose first matching stream */
3041 if (type_in == 's') {
3042 for (i = 0; i < ic->nb_streams; i++) {
3043 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3044 meta_in = &ic->streams[i]->metadata;
3045 break;
3046 } else if (ret < 0)
3047 exit_program(1);
3048 }
3049 if (!meta_in) {
3050 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3051 exit_program(1);
3052 }
3053 }
3054
3055 if (type_out == 's') {
3056 for (i = 0; i < oc->nb_streams; i++) {
3057 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3058 meta_out = &oc->streams[i]->metadata;
3059 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3060 } else if (ret < 0)
3061 exit_program(1);
3062 }
3063 } else
3064 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3065
6291d7e4
AK
3066 return 0;
3067}
3068
1b648c7c 3069static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3070{
3071 const char *codec_string = encoder ? "encoder" : "decoder";
3072 AVCodec *codec;
3073
169f0647
AK
3074 codec = encoder ?
3075 avcodec_find_encoder_by_name(name) :
3076 avcodec_find_decoder_by_name(name);
7636c8c6 3077 if (!codec) {
f24facd3 3078 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3079 exit_program(1);
3080 }
7636c8c6 3081 if (codec->type != type) {
f24facd3 3082 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3083 exit_program(1);
3084 }
1b648c7c 3085 return codec;
169f0647
AK
3086}
3087
1b648c7c 3088static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3089{
169f0647 3090 char *codec_name = NULL;
169f0647 3091
35e6f8c1 3092 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3093 if (codec_name) {
3094 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3095 st->codec->codec_id = codec->id;
3096 return codec;
3097 } else
3098 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3099}
6291d7e4 3100
88867844
AK
3101/**
3102 * Add all the streams from the given input file to the global
3103 * list of input streams.
3104 */
35e6f8c1 3105static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3106{
c88d5319 3107 int i;
88867844
AK
3108
3109 for (i = 0; i < ic->nb_streams; i++) {
3110 AVStream *st = ic->streams[i];
3111 AVCodecContext *dec = st->codec;
2e215267
AK
3112 InputStream *ist = av_mallocz(sizeof(*ist));
3113
3114 if (!ist)
3115 exit_program(1);
88867844 3116
88867844 3117 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2e215267
AK
3118 input_streams[nb_input_streams - 1] = ist;
3119
88867844
AK
3120 ist->st = st;
3121 ist->file_index = nb_input_files;
3122 ist->discard = 1;
13f6917c 3123 st->discard = AVDISCARD_ALL;
88867844
AK
3124 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3125
059fb8c8
AK
3126 ist->ts_scale = 1.0;
3127 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3128
1b648c7c 3129 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3130
3131 switch (dec->codec_type) {
88867844 3132 case AVMEDIA_TYPE_VIDEO:
88867844
AK
3133 if (dec->lowres) {
3134 dec->flags |= CODEC_FLAG_EMU_EDGE;
3135 dec->height >>= dec->lowres;
3136 dec->width >>= dec->lowres;
3137 }
88867844 3138
88867844 3139 break;
13f6917c 3140 case AVMEDIA_TYPE_AUDIO:
88867844 3141 case AVMEDIA_TYPE_DATA:
88867844 3142 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3143 case AVMEDIA_TYPE_ATTACHMENT:
3144 case AVMEDIA_TYPE_UNKNOWN:
3145 break;
3146 default:
3147 abort();
3148 }
3149 }
3150}
3151
a2c0b830
AK
3152static void assert_file_overwrite(const char *filename)
3153{
3154 if (!file_overwrite &&
3155 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3156 av_strstart(filename, "file:", NULL))) {
3157 if (avio_check(filename, 0) == 0) {
3158 if (!using_stdin) {
3159 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3160 fflush(stderr);
3161 if (!read_yesno()) {
3162 fprintf(stderr, "Not overwriting - exiting\n");
3163 exit_program(1);
3164 }
3165 }
3166 else {
3167 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3168 exit_program(1);
3169 }
3170 }
3171 }
3172}
3173
3174static void dump_attachment(AVStream *st, const char *filename)
3175{
3176 int ret;
3177 AVIOContext *out = NULL;
3178 AVDictionaryEntry *e;
3179
3180 if (!st->codec->extradata_size) {
3181 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3182 nb_input_files - 1, st->index);
3183 return;
3184 }
3185 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3186 filename = e->value;
3187 if (!*filename) {
3188 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3189 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3190 exit_program(1);
3191 }
3192
3193 assert_file_overwrite(filename);
3194
2abe947a 3195 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3196 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3197 filename);
3198 exit_program(1);
3199 }
3200
3201 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3202 avio_flush(out);
3203 avio_close(out);
3204}
3205
575ec4e1 3206static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3207{
3208 AVFormatContext *ic;
3209 AVInputFormat *file_iformat = NULL;
88867844 3210 int err, i, ret;
6291d7e4
AK
3211 int64_t timestamp;
3212 uint8_t buf[128];
3213 AVDictionary **opts;
3214 int orig_nb_streams; // number of streams before avformat_find_stream_info
3215
7041bb3b
AK
3216 if (o->format) {
3217 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3218 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3219 exit_program(1);
3220 }
6291d7e4
AK
3221 }
3222
3223 if (!strcmp(filename, "-"))
3224 filename = "pipe:";
3225
3226 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3227 !strcmp(filename, "/dev/stdin");
3228
3229 /* get default parameters from command line */
3230 ic = avformat_alloc_context();
3231 if (!ic) {
3232 print_error(filename, AVERROR(ENOMEM));
3233 exit_program(1);
3234 }
e2469ccf
AK
3235 if (o->nb_audio_sample_rate) {
3236 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3237 av_dict_set(&format_opts, "sample_rate", buf, 0);
3238 }
6a11686d
AK
3239 if (o->nb_audio_channels) {
3240 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
6291d7e4
AK
3241 av_dict_set(&format_opts, "channels", buf, 0);
3242 }
91ea4811
AK
3243 if (o->nb_frame_rates) {
3244 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
6291d7e4 3245 }
d4397b03
AK
3246 if (o->nb_frame_sizes) {
3247 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
6291d7e4 3248 }
b2254d83
AK
3249 if (o->nb_frame_pix_fmts)
3250 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
6291d7e4 3251
6291d7e4 3252 ic->flags |= AVFMT_FLAG_NONBLOCK;
2abe947a 3253 ic->interrupt_callback = int_cb;
6291d7e4
AK
3254
3255 /* open the input file with generic libav function */
3256 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3257 if (err < 0) {
3258 print_error(filename, err);
3259 exit_program(1);
3260 }
3261 assert_avoptions(format_opts);
3262
92f1940e
AK
3263 /* apply forced codec ids */
3264 for (i = 0; i < ic->nb_streams; i++)
1b648c7c 3265 choose_decoder(o, ic, ic->streams[i]);
92f1940e 3266
6291d7e4
AK
3267 /* Set AVCodecContext options for avformat_find_stream_info */
3268 opts = setup_find_stream_info_opts(ic, codec_opts);
3269 orig_nb_streams = ic->nb_streams;
3270
3271 /* If not enough info to get the stream parameters, we decode the
3272 first frames to get it. (used in mpeg case for example) */
3273 ret = avformat_find_stream_info(ic, opts);
e3245b26
AK
3274 if (ret < 0) {
3275 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
cd3716b9 3276 avformat_close_input(&ic);
6291d7e4
AK
3277 exit_program(1);
3278 }
3279
6b779ccc 3280 timestamp = o->start_time;
6291d7e4
AK
3281 /* add the stream start time */
3282 if (ic->start_time != AV_NOPTS_VALUE)
3283 timestamp += ic->start_time;
3284
3285 /* if seeking requested, we execute it */
6b779ccc 3286 if (o->start_time != 0) {
6291d7e4
AK
3287 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3288 if (ret < 0) {
e3245b26
AK
3289 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3290 filename, (double)timestamp / AV_TIME_BASE);
6291d7e4 3291 }
6291d7e4
AK
3292 }
3293
3294 /* update the current parameters so that they match the one of the input stream */
35e6f8c1 3295 add_input_streams(o, ic);
6291d7e4
AK
3296
3297 /* dump the file content */
e3245b26 3298 av_dump_format(ic, nb_input_files, filename, 0);
6291d7e4
AK
3299
3300 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2e215267
AK
3301 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3302 exit_program(1);
3303
3304 input_files[nb_input_files - 1]->ctx = ic;
3305 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3306 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3307 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3308 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
6291d7e4 3309
a2c0b830
AK
3310 for (i = 0; i < o->nb_dump_attachment; i++) {
3311 int j;
3312
3313 for (j = 0; j < ic->nb_streams; j++) {
3314 AVStream *st = ic->streams[j];
3315
3316 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3317 dump_attachment(st, o->dump_attachment[i].u.str);
3318 }
3319 }
3320
6291d7e4
AK
3321 for (i = 0; i < orig_nb_streams; i++)
3322 av_dict_free(&opts[i]);
3323 av_freep(&opts);
575ec4e1
AK
3324
3325 reset_options(o);
6291d7e4
AK
3326 return 0;
3327}
3328
f233cfed
AK
3329static void parse_forced_key_frames(char *kf, OutputStream *ost,
3330 AVCodecContext *avctx)
3331{
3332 char *p;
3333 int n = 1, i;
3334 int64_t t;
3335
3336 for (p = kf; *p; p++)
3337 if (*p == ',')
3338 n++;
3339 ost->forced_kf_count = n;
7636c8c6 3340 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
f233cfed
AK
3341 if (!ost->forced_kf_pts) {
3342 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3343 exit_program(1);
3344 }
3345 for (i = 0; i < n; i++) {
3346 p = i ? strchr(p, ',') + 1 : kf;
3347 t = parse_time_or_die("force_key_frames", p, 1);
3348 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3349 }
3350}
3351
3ec34462
AK
3352static uint8_t *get_line(AVIOContext *s)
3353{
3354 AVIOContext *line;
3355 uint8_t *buf;
3356 char c;
3357
3358 if (avio_open_dyn_buf(&line) < 0) {
3359 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3360 exit_program(1);
3361 }
3362
3363 while ((c = avio_r8(s)) && c != '\n')
3364 avio_w8(line, c);
3365 avio_w8(line, 0);
3366 avio_close_dyn_buf(line, &buf);
3367
3368 return buf;
3369}
3370
3371static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3372{
3373 int i, ret = 1;
3374 char filename[1000];
3375 const char *base[3] = { getenv("AVCONV_DATADIR"),
3376 getenv("HOME"),
3377 AVCONV_DATADIR,
3378 };
3379
3380 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3381 if (!base[i])
3382 continue;
3383 if (codec_name) {
3384 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3385 i != 1 ? "" : "/.avconv", codec_name, preset_name);
2abe947a 3386 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3387 }
3388 if (ret) {
3389 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3390 i != 1 ? "" : "/.avconv", preset_name);
2abe947a 3391 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3392 }
3393 }
3394 return ret;
3395}
3396
1b648c7c
AK
3397static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3398{
3399 char *codec_name = NULL;
3400
3401 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3402 if (!codec_name) {
3403 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3404 NULL, ost->st->codec->codec_type);
3405 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3406 } else if (!strcmp(codec_name, "copy"))
3d813e4c 3407 ost->stream_copy = 1;
1b648c7c
AK
3408 else {
3409 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3410 ost->st->codec->codec_id = ost->enc->id;
3411 }
3412}
3413
35e6f8c1 3414static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
169f0647
AK
3415{
3416 OutputStream *ost;
84ad31ff 3417 AVStream *st = avformat_new_stream(oc, NULL);
3ec34462 3418 int idx = oc->nb_streams - 1, ret = 0;
013887eb 3419 char *bsf = NULL, *next, *codec_tag = NULL;
d821cbe2 3420 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
77d9c454 3421 double qscale = -1;
3ec34462
AK
3422 char *buf = NULL, *arg = NULL, *preset = NULL;
3423 AVIOContext *s = NULL;
169f0647
AK
3424
3425 if (!st) {
f24facd3 3426 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
169f0647
AK
3427 exit_program(1);
3428 }
3429
84ad31ff
AK
3430 if (oc->nb_streams - 1 < o->nb_streamid_map)
3431 st->id = o->streamid_map[oc->nb_streams - 1];
3432
4288e031
AK
3433 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3434 nb_output_streams + 1);
2e215267
AK
3435 if (!(ost = av_mallocz(sizeof(*ost))))
3436 exit_program(1);
3437 output_streams[nb_output_streams - 1] = ost;
3438
40fc2810 3439 ost->file_index = nb_output_files;
7636c8c6
AD
3440 ost->index = idx;
3441 ost->st = st;
169f0647 3442 st->codec->codec_type = type;
1b648c7c 3443 choose_encoder(o, oc, ost);
169f0647
AK
3444 if (ost->enc) {
3445 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3446 }
3447
3448 avcodec_get_context_defaults3(st->codec, ost->enc);
3449 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3450
3ec34462
AK
3451 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3452 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3453 do {
3454 buf = get_line(s);
3455 if (!buf[0] || buf[0] == '#') {
3456 av_free(buf);
3457 continue;
3458 }
3459 if (!(arg = strchr(buf, '='))) {
3460 av_log(NULL, AV_LOG_FATAL, "Invalid line