avconv: don't pass input/output streams to some functions.
[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 */
218 int video_resample;
6291d7e4
AK
219 int resample_height;
220 int resample_width;
221 int resample_pix_fmt;
222 AVRational frame_rate;
bef737a7 223 int force_fps;
828e0bcb 224 int top_field_first;
6291d7e4
AK
225
226 float frame_aspect_ratio;
227
228 /* forced key frames */
229 int64_t *forced_kf_pts;
230 int forced_kf_count;
231 int forced_kf_index;
232
233 /* audio only */
234 int audio_resample;
235 ReSampleContext *resample; /* for audio resampling */
236 int resample_sample_fmt;
237 int resample_channels;
238 int resample_sample_rate;
239 int reformat_pair;
240 AVAudioConvert *reformat_ctx;
241 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
242 FILE *logfile;
243
6291d7e4
AK
244 AVFilterContext *output_video_filter;
245 AVFilterContext *input_video_filter;
6291d7e4
AK
246 char *avfilter;
247 AVFilterGraph *graph;
6291d7e4 248
f8c314c8
AK
249 int64_t sws_flags;
250 AVDictionary *opts;
251 int is_past_recording_time;
252 int stream_copy;
253 const char *attachment_filename;
254 int copy_initial_nonkeyframes;
6291d7e4
AK
255} OutputStream;
256
6291d7e4 257
af70aa45
AK
258typedef struct OutputFile {
259 AVFormatContext *ctx;
260 AVDictionary *opts;
4288e031 261 int ost_index; /* index of the first stream in output_streams */
ef44a607 262 int64_t recording_time; /* desired length of the resulting file in microseconds */
ea065176 263 int64_t start_time; /* start time in microseconds */
f21f294e 264 uint64_t limit_filesize;
af70aa45
AK
265} OutputFile;
266
7636c8c6 267static InputStream *input_streams = NULL;
6291d7e4 268static int nb_input_streams = 0;
7636c8c6 269static InputFile *input_files = NULL;
6291d7e4
AK
270static int nb_input_files = 0;
271
4288e031
AK
272static OutputStream *output_streams = NULL;
273static int nb_output_streams = 0;
af70aa45
AK
274static OutputFile *output_files = NULL;
275static int nb_output_files = 0;
276
575ec4e1 277typedef struct OptionsContext {
6b779ccc
AK
278 /* input/output options */
279 int64_t start_time;
7041bb3b 280 const char *format;
6b779ccc 281
35e6f8c1
AK
282 SpecifierOpt *codec_names;
283 int nb_codec_names;
6a11686d
AK
284 SpecifierOpt *audio_channels;
285 int nb_audio_channels;
e2469ccf
AK
286 SpecifierOpt *audio_sample_rate;
287 int nb_audio_sample_rate;
91ea4811
AK
288 SpecifierOpt *frame_rates;
289 int nb_frame_rates;
d4397b03
AK
290 SpecifierOpt *frame_sizes;
291 int nb_frame_sizes;
b2254d83
AK
292 SpecifierOpt *frame_pix_fmts;
293 int nb_frame_pix_fmts;
35e6f8c1 294
6b779ccc
AK
295 /* input options */
296 int64_t input_ts_offset;
f4805328 297 int rate_emu;
6b779ccc 298
33f75d72
AK
299 SpecifierOpt *ts_scale;
300 int nb_ts_scale;
a2c0b830
AK
301 SpecifierOpt *dump_attachment;
302 int nb_dump_attachment;
33f75d72 303
575ec4e1
AK
304 /* output options */
305 StreamMap *stream_maps;
306 int nb_stream_maps;
847529f8
AK
307 /* first item specifies output metadata, second is input */
308 MetadataMap (*meta_data_maps)[2];
309 int nb_meta_data_maps;
310 int metadata_global_manual;
311 int metadata_streams_manual;
312 int metadata_chapters_manual;
4dbc6cee
AK
313 const char **attachments;
314 int nb_attachments;
6b779ccc 315
c5bb372e
AK
316 int chapters_input_file;
317
6b779ccc 318 int64_t recording_time;
13ccba50 319 uint64_t limit_filesize;
dc26318c
AK
320 float mux_preload;
321 float mux_max_delay;
039267f1 322
2130981a
AK
323 int video_disable;
324 int audio_disable;
325 int subtitle_disable;
326 int data_disable;
327
495ecfd1
AK
328 /* indexed by output file stream index */
329 int *streamid_map;
330 int nb_streamid_map;
331
039267f1
AK
332 SpecifierOpt *metadata;
333 int nb_metadata;
96139b5e
AK
334 SpecifierOpt *max_frames;
335 int nb_max_frames;
d821cbe2
AK
336 SpecifierOpt *bitstream_filters;
337 int nb_bitstream_filters;
013887eb
AK
338 SpecifierOpt *codec_tags;
339 int nb_codec_tags;
05bffc12
AK
340 SpecifierOpt *sample_fmts;
341 int nb_sample_fmts;
77d9c454
AK
342 SpecifierOpt *qscale;
343 int nb_qscale;
7c029672
AK
344 SpecifierOpt *forced_key_frames;
345 int nb_forced_key_frames;
bef737a7
AK
346 SpecifierOpt *force_fps;
347 int nb_force_fps;
ca46fde7
AK
348 SpecifierOpt *frame_aspect_ratios;
349 int nb_frame_aspect_ratios;
0e68c783
AK
350 SpecifierOpt *rc_overrides;
351 int nb_rc_overrides;
2c2cff16
AK
352 SpecifierOpt *intra_matrices;
353 int nb_intra_matrices;
354 SpecifierOpt *inter_matrices;
355 int nb_inter_matrices;
828e0bcb
AK
356 SpecifierOpt *top_field_first;
357 int nb_top_field_first;
a7b5e841
AK
358 SpecifierOpt *metadata_map;
359 int nb_metadata_map;
3ec34462
AK
360 SpecifierOpt *presets;
361 int nb_presets;
a2aeeb22
AK
362 SpecifierOpt *copy_initial_nonkeyframes;
363 int nb_copy_initial_nonkeyframes;
8e5ce590
AK
364 SpecifierOpt *filters;
365 int nb_filters;
575ec4e1
AK
366} OptionsContext;
367
35e6f8c1
AK
368#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
369{\
370 int i, ret;\
371 for (i = 0; i < o->nb_ ## name; i++) {\
372 char *spec = o->name[i].specifier;\
373 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
374 outvar = o->name[i].u.type;\
375 else if (ret < 0)\
376 exit_program(1);\
377 }\
378}
379
575ec4e1
AK
380static void reset_options(OptionsContext *o)
381{
382 const OptionDef *po = options;
383
384 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
385 while (po->name) {
386 void *dst = (uint8_t*)o + po->u.off;
387
388 if (po->flags & OPT_SPEC) {
389 SpecifierOpt **so = dst;
390 int i, *count = (int*)(so + 1);
391 for (i = 0; i < *count; i++) {
392 av_freep(&(*so)[i].specifier);
393 if (po->flags & OPT_STRING)
394 av_freep(&(*so)[i].u.str);
395 }
396 av_freep(so);
397 *count = 0;
398 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
399 av_freep(dst);
400 po++;
401 }
402
403 av_freep(&o->stream_maps);
847529f8 404 av_freep(&o->meta_data_maps);
495ecfd1 405 av_freep(&o->streamid_map);
575ec4e1
AK
406
407 memset(o, 0, sizeof(*o));
6b779ccc 408
dc26318c 409 o->mux_max_delay = 0.7;
6b779ccc 410 o->recording_time = INT64_MAX;
13ccba50 411 o->limit_filesize = UINT64_MAX;
c5bb372e 412 o->chapters_input_file = INT_MAX;
6b779ccc 413
575ec4e1
AK
414 uninit_opts();
415 init_opts();
416}
417
bc1ef855 418static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
64dca32c 419{
64dca32c 420 FrameBuffer *buf = av_mallocz(sizeof(*buf));
3715d841 421 int i, ret;
64dca32c
AK
422 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
423 int h_chroma_shift, v_chroma_shift;
424 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
425 int w = s->width, h = s->height;
426
427 if (!buf)
428 return AVERROR(ENOMEM);
429
430 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
431 w += 2*edge;
432 h += 2*edge;
433 }
434
435 avcodec_align_dimensions(s, &w, &h);
436 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
437 s->pix_fmt, 32)) < 0) {
438 av_freep(&buf);
439 return ret;
440 }
441 /* XXX this shouldn't be needed, but some tests break without this line
442 * those decoders are buggy and need to be fixed.
443 * the following tests fail:
f320fb89 444 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
64dca32c
AK
445 */
446 memset(buf->base[0], 128, ret);
447
448 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
3715d841 449 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
64dca32c
AK
450 const int h_shift = i==0 ? 0 : h_chroma_shift;
451 const int v_shift = i==0 ? 0 : v_chroma_shift;
452 if (s->flags & CODEC_FLAG_EMU_EDGE)
453 buf->data[i] = buf->base[i];
454 else
455 buf->data[i] = buf->base[i] +
456 FFALIGN((buf->linesize[i]*edge >> v_shift) +
457 (pixel_size*edge >> h_shift), 32);
458 }
459 buf->w = s->width;
460 buf->h = s->height;
461 buf->pix_fmt = s->pix_fmt;
462 buf->ist = ist;
463
464 *pbuf = buf;
465 return 0;
466}
467
468static void free_buffer_pool(InputStream *ist)
469{
470 FrameBuffer *buf = ist->buffer_pool;
471 while (buf) {
472 ist->buffer_pool = buf->next;
473 av_freep(&buf->base[0]);
474 av_free(buf);
475 buf = ist->buffer_pool;
476 }
477}
478
479static void unref_buffer(InputStream *ist, FrameBuffer *buf)
480{
481 av_assert0(buf->refcount);
482 buf->refcount--;
483 if (!buf->refcount) {
484 buf->next = ist->buffer_pool;
485 ist->buffer_pool = buf;
486 }
487}
488
489static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
490{
491 InputStream *ist = s->opaque;
492 FrameBuffer *buf;
493 int ret, i;
494
bc1ef855 495 if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
64dca32c
AK
496 return ret;
497
498 buf = ist->buffer_pool;
499 ist->buffer_pool = buf->next;
500 buf->next = NULL;
501 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
502 av_freep(&buf->base[0]);
503 av_free(buf);
bc1ef855 504 if ((ret = alloc_buffer(ist, s, &buf)) < 0)
64dca32c
AK
505 return ret;
506 }
507 buf->refcount++;
508
509 frame->opaque = buf;
510 frame->type = FF_BUFFER_TYPE_USER;
511 frame->extended_data = frame->data;
512 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
bc1ef855
RB
513 frame->width = buf->w;
514 frame->height = buf->h;
515 frame->format = buf->pix_fmt;
516 frame->sample_aspect_ratio = s->sample_aspect_ratio;
64dca32c
AK
517
518 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
519 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
520 frame->data[i] = buf->data[i];
521 frame->linesize[i] = buf->linesize[i];
522 }
523
524 return 0;
525}
526
527static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
528{
529 InputStream *ist = s->opaque;
530 FrameBuffer *buf = frame->opaque;
531 int i;
532
533 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
534 frame->data[i] = NULL;
535
536 unref_buffer(ist, buf);
537}
538
04a14d4d
AK
539static void filter_release_buffer(AVFilterBuffer *fb)
540{
541 FrameBuffer *buf = fb->priv;
542 av_free(fb);
543 unref_buffer(buf->ist, buf);
544}
545
6291d7e4
AK
546static int configure_video_filters(InputStream *ist, OutputStream *ost)
547{
548 AVFilterContext *last_filter, *filter;
549 /** filter graph containing all filters including input & output */
550 AVCodecContext *codec = ost->st->codec;
551 AVCodecContext *icodec = ist->st->codec;
abe655a4 552 SinkContext sink_ctx = { .pix_fmt = codec->pix_fmt };
6291d7e4
AK
553 AVRational sample_aspect_ratio;
554 char args[255];
555 int ret;
556
557 ost->graph = avfilter_graph_alloc();
558
7636c8c6 559 if (ist->st->sample_aspect_ratio.num) {
6291d7e4 560 sample_aspect_ratio = ist->st->sample_aspect_ratio;
7636c8c6 561 } else
6291d7e4
AK
562 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
563
564 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
565 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
566 sample_aspect_ratio.num, sample_aspect_ratio.den);
567
568 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
569 "src", args, NULL, ost->graph);
570 if (ret < 0)
571 return ret;
abe655a4
DB
572 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
573 "out", NULL, &sink_ctx, ost->graph);
6291d7e4
AK
574 if (ret < 0)
575 return ret;
576 last_filter = ost->input_video_filter;
577
7636c8c6 578 if (codec->width != icodec->width || codec->height != icodec->height) {
6291d7e4
AK
579 snprintf(args, 255, "%d:%d:flags=0x%X",
580 codec->width,
581 codec->height,
3b3ea346 582 (unsigned)ost->sws_flags);
6291d7e4
AK
583 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
584 NULL, args, NULL, ost->graph)) < 0)
585 return ret;
586 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
587 return ret;
588 last_filter = filter;
589 }
590
3b3ea346 591 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
6291d7e4
AK
592 ost->graph->scale_sws_opts = av_strdup(args);
593
594 if (ost->avfilter) {
91d3cbe0
SS
595 AVFilterInOut *outputs = avfilter_inout_alloc();
596 AVFilterInOut *inputs = avfilter_inout_alloc();
6291d7e4
AK
597
598 outputs->name = av_strdup("in");
599 outputs->filter_ctx = last_filter;
600 outputs->pad_idx = 0;
601 outputs->next = NULL;
602
603 inputs->name = av_strdup("out");
604 inputs->filter_ctx = ost->output_video_filter;
605 inputs->pad_idx = 0;
606 inputs->next = NULL;
607
608 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
609 return ret;
6291d7e4
AK
610 } else {
611 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
612 return ret;
613 }
614
615 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
616 return ret;
617
618 codec->width = ost->output_video_filter->inputs[0]->w;
619 codec->height = ost->output_video_filter->inputs[0]->h;
620 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
bb337b4f 621 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
7636c8c6 622 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
6291d7e4
AK
623 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
624
625 return 0;
626}
6291d7e4
AK
627
628static void term_exit(void)
629{
630 av_log(NULL, AV_LOG_QUIET, "");
631}
632
633static volatile int received_sigterm = 0;
634static volatile int received_nb_signals = 0;
635
636static void
637sigterm_handler(int sig)
638{
639 received_sigterm = sig;
640 received_nb_signals++;
641 term_exit();
642}
643
644static void term_init(void)
645{
7636c8c6 646 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
6291d7e4
AK
647 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
648#ifdef SIGXCPU
649 signal(SIGXCPU, sigterm_handler);
650#endif
651}
652
2abe947a 653static int decode_interrupt_cb(void *ctx)
6291d7e4
AK
654{
655 return received_nb_signals > 1;
656}
657
2abe947a
MS
658static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
659
dad09ff9 660void exit_program(int ret)
6291d7e4
AK
661{
662 int i;
663
664 /* close files */
7636c8c6 665 for (i = 0; i < nb_output_files; i++) {
af70aa45 666 AVFormatContext *s = output_files[i].ctx;
6291d7e4
AK
667 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
668 avio_close(s->pb);
669 avformat_free_context(s);
af70aa45 670 av_dict_free(&output_files[i].opts);
6291d7e4 671 }
1135a071
JG
672 for (i = 0; i < nb_output_streams; i++) {
673 AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
674 while (bsfc) {
675 AVBitStreamFilterContext *next = bsfc->next;
676 av_bitstream_filter_close(bsfc);
677 bsfc = next;
678 }
679 output_streams[i].bitstream_filters = NULL;
ac646076 680
ee458cb1
JR
681 if (output_streams[i].output_frame) {
682 AVFrame *frame = output_streams[i].output_frame;
683 if (frame->extended_data != frame->data)
684 av_freep(&frame->extended_data);
685 av_freep(&frame);
686 }
687
ac646076 688 av_freep(&output_streams[i].avfilter);
1135a071 689 }
7636c8c6 690 for (i = 0; i < nb_input_files; i++) {
cd3716b9 691 avformat_close_input(&input_files[i].ctx);
6291d7e4 692 }
9179f27c
JR
693 for (i = 0; i < nb_input_streams; i++) {
694 av_freep(&input_streams[i].decoded_frame);
695 av_freep(&input_streams[i].filtered_frame);
6291d7e4 696 av_dict_free(&input_streams[i].opts);
64dca32c 697 free_buffer_pool(&input_streams[i]);
9179f27c 698 }
6291d7e4 699
6291d7e4
AK
700 if (vstats_file)
701 fclose(vstats_file);
702 av_free(vstats_filename);
703
6291d7e4
AK
704 av_freep(&input_streams);
705 av_freep(&input_files);
4288e031 706 av_freep(&output_streams);
af70aa45 707 av_freep(&output_files);
6291d7e4 708
6291d7e4
AK
709 uninit_opts();
710 av_free(audio_buf);
ee458cb1 711 allocated_audio_buf_size = 0;
f3ab3e1a
JR
712 av_free(async_buf);
713 allocated_async_buf_size = 0;
6291d7e4 714
6291d7e4 715 avfilter_uninit();
776f2bb9 716 avformat_network_deinit();
6291d7e4
AK
717
718 if (received_sigterm) {
e3245b26
AK
719 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
720 (int) received_sigterm);
6291d7e4
AK
721 exit (255);
722 }
723
f75e3d25 724 exit(ret);
6291d7e4
AK
725}
726
727static void assert_avoptions(AVDictionary *m)
728{
729 AVDictionaryEntry *t;
730 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 731 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
6291d7e4
AK
732 exit_program(1);
733 }
734}
735
736static void assert_codec_experimental(AVCodecContext *c, int encoder)
737{
738 const char *codec_string = encoder ? "encoder" : "decoder";
739 AVCodec *codec;
740 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
741 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 742 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
6291d7e4
AK
743 "results.\nAdd '-strict experimental' if you want to use it.\n",
744 codec_string, c->codec->name);
745 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
746 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 747 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4
AK
748 codec_string, codec->name);
749 exit_program(1);
750 }
751}
752
6291d7e4
AK
753static void choose_sample_fmt(AVStream *st, AVCodec *codec)
754{
7636c8c6
AD
755 if (codec && codec->sample_fmts) {
756 const enum AVSampleFormat *p = codec->sample_fmts;
757 for (; *p != -1; p++) {
758 if (*p == st->codec->sample_fmt)
6291d7e4
AK
759 break;
760 }
761 if (*p == -1) {
762 av_log(NULL, AV_LOG_WARNING,
763 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
764 av_get_sample_fmt_name(st->codec->sample_fmt),
765 codec->name,
766 av_get_sample_fmt_name(codec->sample_fmts[0]));
767 st->codec->sample_fmt = codec->sample_fmts[0];
768 }
769 }
770}
771
772/**
773 * Update the requested input sample format based on the output sample format.
774 * This is currently only used to request float output from decoders which
775 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
776 * Ideally this will be removed in the future when decoders do not do format
777 * conversion and only output in their native format.
778 */
779static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
780 AVCodecContext *enc)
781{
782 /* if sample formats match or a decoder sample format has already been
783 requested, just return */
784 if (enc->sample_fmt == dec->sample_fmt ||
785 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
786 return;
787
788 /* if decoder supports more than one output format */
789 if (dec_codec && dec_codec->sample_fmts &&
790 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
791 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
792 const enum AVSampleFormat *p;
793 int min_dec = -1, min_inc = -1;
794
795 /* find a matching sample format in the encoder */
796 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
797 if (*p == enc->sample_fmt) {
798 dec->request_sample_fmt = *p;
799 return;
800 } else if (*p > enc->sample_fmt) {
801 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
802 } else
803 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
804 }
805
806 /* if none match, provide the one that matches quality closest */
807 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
808 enc->sample_fmt - min_dec;
809 }
810}
811
812static void choose_sample_rate(AVStream *st, AVCodec *codec)
813{
7636c8c6
AD
814 if (codec && codec->supported_samplerates) {
815 const int *p = codec->supported_samplerates;
816 int best = 0;
817 int best_dist = INT_MAX;
818 for (; *p; p++) {
819 int dist = abs(st->codec->sample_rate - *p);
820 if (dist < best_dist) {
821 best_dist = dist;
822 best = *p;
6291d7e4
AK
823 }
824 }
7636c8c6 825 if (best_dist) {
6291d7e4
AK
826 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
827 }
7636c8c6 828 st->codec->sample_rate = best;
6291d7e4
AK
829 }
830}
831
832static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
833{
7636c8c6
AD
834 if (codec && codec->pix_fmts) {
835 const enum PixelFormat *p = codec->pix_fmts;
836 if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
837 if (st->codec->codec_id == CODEC_ID_MJPEG) {
838 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
839 } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
840 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
841 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
6291d7e4
AK
842 }
843 }
105ab61c 844 for (; *p != PIX_FMT_NONE; p++) {
7636c8c6 845 if (*p == st->codec->pix_fmt)
6291d7e4
AK
846 break;
847 }
105ab61c 848 if (*p == PIX_FMT_NONE) {
7636c8c6 849 if (st->codec->pix_fmt != PIX_FMT_NONE)
6291d7e4 850 av_log(NULL, AV_LOG_WARNING,
7636c8c6
AD
851 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
852 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
853 codec->name,
854 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
6291d7e4
AK
855 st->codec->pix_fmt = codec->pix_fmts[0];
856 }
857 }
858}
859
6291d7e4 860static double
6e983902 861get_sync_ipts(const OutputStream *ost, int64_t pts)
6291d7e4 862{
ea065176 863 OutputFile *of = &output_files[ost->file_index];
6e983902 864 return (double)(pts - of->start_time) / AV_TIME_BASE;
6291d7e4
AK
865}
866
f15f02c2 867static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 868{
f15f02c2
AK
869 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
870 AVCodecContext *avctx = ost->st->codec;
6291d7e4
AK
871 int ret;
872
99932847
AK
873 /*
874 * Audio encoders may split the packets -- #frames in != #packets out.
875 * But there is no reordering, so we can limit the number of output packets
876 * by simply dropping them here.
877 * Counting encoded video frames needs to be done separately because of
878 * reordering, see do_video_out()
879 */
880 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
881 if (ost->frame_number >= ost->max_frames) {
882 av_free_packet(pkt);
99932847 883 return;
c9594fe0 884 }
99932847
AK
885 ost->frame_number++;
886 }
887
7636c8c6
AD
888 while (bsfc) {
889 AVPacket new_pkt = *pkt;
890 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
891 &new_pkt.data, &new_pkt.size,
892 pkt->data, pkt->size,
893 pkt->flags & AV_PKT_FLAG_KEY);
894 if (a > 0) {
6291d7e4 895 av_free_packet(pkt);
7636c8c6
AD
896 new_pkt.destruct = av_destruct_packet;
897 } else if (a < 0) {
e3245b26
AK
898 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
899 bsfc->filter->name, pkt->stream_index,
900 avctx->codec ? avctx->codec->name : "copy");
6291d7e4
AK
901 print_error("", a);
902 if (exit_on_error)
903 exit_program(1);
904 }
7636c8c6 905 *pkt = new_pkt;
6291d7e4 906
7636c8c6 907 bsfc = bsfc->next;
6291d7e4
AK
908 }
909
61a09968 910 pkt->stream_index = ost->index;
7636c8c6
AD
911 ret = av_interleaved_write_frame(s, pkt);
912 if (ret < 0) {
6291d7e4
AK
913 print_error("av_interleaved_write_frame()", ret);
914 exit_program(1);
915 }
916}
917
1270e12e
AK
918static int check_recording_time(OutputStream *ost)
919{
920 OutputFile *of = &output_files[ost->file_index];
921
922 if (of->recording_time != INT64_MAX &&
923 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
924 AV_TIME_BASE_Q) >= 0) {
925 ost->is_past_recording_time = 1;
926 return 0;
927 }
928 return 1;
929}
930
fdab793a
AC
931static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
932{
933 int fill_char = 0x00;
934 if (sample_fmt == AV_SAMPLE_FMT_U8)
935 fill_char = 0x80;
936 memset(buf, fill_char, size);
937}
938
ee458cb1
JR
939static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
940 const uint8_t *buf, int buf_size)
941{
942 AVCodecContext *enc = ost->st->codec;
943 AVFrame *frame = NULL;
944 AVPacket pkt;
945 int ret, got_packet;
946
947 av_init_packet(&pkt);
948 pkt.data = NULL;
949 pkt.size = 0;
950
951 if (buf) {
952 if (!ost->output_frame) {
953 ost->output_frame = avcodec_alloc_frame();
954 if (!ost->output_frame) {
955 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
956 exit_program(1);
957 }
958 }
959 frame = ost->output_frame;
960 if (frame->extended_data != frame->data)
961 av_freep(&frame->extended_data);
962 avcodec_get_frame_defaults(frame);
963
964 frame->nb_samples = buf_size /
965 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
966 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
967 buf, buf_size, 1)) < 0) {
968 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
969 exit_program(1);
970 }
1270e12e
AK
971
972 if (!check_recording_time(ost))
973 return 0;
974
9b9fc9ba 975 frame->pts = ost->sync_opts;
1270e12e 976 ost->sync_opts += frame->nb_samples;
ee458cb1
JR
977 }
978
979 got_packet = 0;
980 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
981 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
982 exit_program(1);
983 }
984
985 if (got_packet) {
ee458cb1
JR
986 if (pkt.pts != AV_NOPTS_VALUE)
987 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
JR
988 if (pkt.dts != AV_NOPTS_VALUE)
989 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
JR
990 if (pkt.duration > 0)
991 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
992
993 write_frame(s, &pkt, ost);
994
995 audio_size += pkt.size;
996 }
997
ee458cb1
JR
998 return pkt.size;
999}
1000
9869e963
JR
1001static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
1002 int nb_samples)
1003{
1004 int64_t audio_buf_samples;
1005 int audio_buf_size;
1006
1007 /* calculate required number of samples to allocate */
1008 audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
1009 dec->sample_rate;
4094fc99 1010 audio_buf_samples = 4 * audio_buf_samples + 16; // safety factors for resampling
9869e963
JR
1011 audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
1012 if (audio_buf_samples > INT_MAX)
1013 return AVERROR(EINVAL);
1014
1015 audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
1016 audio_buf_samples,
679a973e 1017 enc->sample_fmt, 0);
9869e963
JR
1018 if (audio_buf_size < 0)
1019 return audio_buf_size;
1020
1021 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1022 if (!audio_buf)
1023 return AVERROR(ENOMEM);
1024
1025 return 0;
1026}
1027
d1241ff3
JR
1028static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1029 InputStream *ist, AVFrame *decoded_frame)
6291d7e4
AK
1030{
1031 uint8_t *buftmp;
6291d7e4 1032
ee458cb1 1033 int size_out, frame_bytes, resample_changed;
7636c8c6
AD
1034 AVCodecContext *enc = ost->st->codec;
1035 AVCodecContext *dec = ist->st->codec;
6291d7e4
AK
1036 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1037 int isize = av_get_bytes_per_sample(dec->sample_fmt);
d1241ff3
JR
1038 uint8_t *buf = decoded_frame->data[0];
1039 int size = decoded_frame->nb_samples * dec->channels * isize;
7636c8c6 1040
9869e963
JR
1041 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
1042 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
6291d7e4
AK
1043 exit_program(1);
1044 }
1045
1046 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1047 ost->audio_resample = 1;
1048
1049 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1050 ost->resample_channels != dec->channels ||
1051 ost->resample_sample_rate != dec->sample_rate;
1052
1053 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1054 if (resample_changed) {
9a414d89 1055 av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
6291d7e4
AK
1056 ist->file_index, ist->st->index,
1057 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1058 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1059 ost->resample_sample_fmt = dec->sample_fmt;
1060 ost->resample_channels = dec->channels;
1061 ost->resample_sample_rate = dec->sample_rate;
1062 if (ost->resample)
1063 audio_resample_close(ost->resample);
1064 }
1065 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1066 if (audio_sync_method <= 1 &&
1067 ost->resample_sample_fmt == enc->sample_fmt &&
1068 ost->resample_channels == enc->channels &&
1069 ost->resample_sample_rate == enc->sample_rate) {
1070 ost->resample = NULL;
1071 ost->audio_resample = 0;
1072 } else if (ost->audio_resample) {
1073 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
e3245b26 1074 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
6291d7e4
AK
1075 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1076 enc->sample_rate, dec->sample_rate,
1077 enc->sample_fmt, dec->sample_fmt,
1078 16, 10, 0, 0.8);
1079 if (!ost->resample) {
e3245b26
AK
1080 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1081 dec->channels, dec->sample_rate,
1082 enc->channels, enc->sample_rate);
6291d7e4
AK
1083 exit_program(1);
1084 }
1085 }
1086 }
1087
1088#define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
7636c8c6
AD
1089 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1090 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
6291d7e4
AK
1091 if (ost->reformat_ctx)
1092 av_audio_convert_free(ost->reformat_ctx);
1093 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1094 dec->sample_fmt, 1, NULL, 0);
1095 if (!ost->reformat_ctx) {
e3245b26
AK
1096 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1097 av_get_sample_fmt_name(dec->sample_fmt),
1098 av_get_sample_fmt_name(enc->sample_fmt));
6291d7e4
AK
1099 exit_program(1);
1100 }
7636c8c6 1101 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
6291d7e4
AK
1102 }
1103
b073819b 1104 if (audio_sync_method > 0) {
23576b3f 1105 double delta = get_sync_ipts(ost, ist->last_dts) * enc->sample_rate - ost->sync_opts -
7636c8c6 1106 av_fifo_size(ost->fifo) / (enc->channels * osize);
fdab793a
AC
1107 int idelta = delta * dec->sample_rate / enc->sample_rate;
1108 int byte_delta = idelta * isize * dec->channels;
6291d7e4 1109
7636c8c6
AD
1110 // FIXME resample delay
1111 if (fabs(delta) > 50) {
1112 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1113 if (byte_delta < 0) {
1114 byte_delta = FFMAX(byte_delta, -size);
6291d7e4
AK
1115 size += byte_delta;
1116 buf -= byte_delta;
fdab793a
AC
1117 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1118 -byte_delta / (isize * dec->channels));
7636c8c6 1119 if (!size)
6291d7e4 1120 return;
7636c8c6
AD
1121 ist->is_start = 0;
1122 } else {
f3ab3e1a
JR
1123 av_fast_malloc(&async_buf, &allocated_async_buf_size,
1124 byte_delta + size);
1125 if (!async_buf) {
1126 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1127 exit_program(1);
1128 }
6291d7e4 1129
9869e963
JR
1130 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
1131 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1132 exit_program(1);
6291d7e4 1133 }
7636c8c6 1134 ist->is_start = 0;
6291d7e4 1135
f3ab3e1a
JR
1136 generate_silence(async_buf, dec->sample_fmt, byte_delta);
1137 memcpy(async_buf + byte_delta, buf, size);
1138 buf = async_buf;
6291d7e4 1139 size += byte_delta;
fdab793a 1140 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
6291d7e4 1141 }
7636c8c6
AD
1142 } else if (audio_sync_method > 1) {
1143 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
6291d7e4 1144 av_assert0(ost->audio_resample);
e3245b26
AK
1145 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1146 delta, comp, enc->sample_rate);
6291d7e4
AK
1147// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
1148 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1149 }
1150 }
b073819b 1151 } else if (audio_sync_method == 0)
23576b3f 1152 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->last_dts) * enc->sample_rate) -
7636c8c6 1153 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
6291d7e4
AK
1154
1155 if (ost->audio_resample) {
1156 buftmp = audio_buf;
1157 size_out = audio_resample(ost->resample,
1158 (short *)buftmp, (short *)buf,
1159 size / (dec->channels * isize));
1160 size_out = size_out * enc->channels * osize;
1161 } else {
1162 buftmp = buf;
1163 size_out = size;
1164 }
1165
7636c8c6
AD
1166 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1167 const void *ibuf[6] = { buftmp };
1168 void *obuf[6] = { audio_buf };
1169 int istride[6] = { isize };
1170 int ostride[6] = { osize };
1171 int len = size_out / istride[0];
1172 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
6291d7e4
AK
1173 printf("av_audio_convert() failed\n");
1174 if (exit_on_error)
1175 exit_program(1);
1176 return;
1177 }
1178 buftmp = audio_buf;
7636c8c6 1179 size_out = len * osize;
6291d7e4
AK
1180 }
1181
1182 /* now encode as many frames as possible */
ee458cb1 1183 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
6291d7e4
AK
1184 /* output resampled raw samples */
1185 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
e3245b26 1186 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
6291d7e4
AK
1187 exit_program(1);
1188 }
1189 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1190
1191 frame_bytes = enc->frame_size * osize * enc->channels;
1192
1193 while (av_fifo_size(ost->fifo) >= frame_bytes) {
6291d7e4 1194 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
ee458cb1 1195 encode_audio_frame(s, ost, audio_buf, frame_bytes);
6291d7e4
AK
1196 }
1197 } else {
ee458cb1 1198 encode_audio_frame(s, ost, buftmp, size_out);
6291d7e4
AK
1199 }
1200}
1201
1202static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1203{
1204 AVCodecContext *dec;
1205 AVPicture *picture2;
1206 AVPicture picture_tmp;
1207 uint8_t *buf = 0;
1208
1209 dec = ist->st->codec;
1210
1211 /* deinterlace : must be done before any resize */
1212 if (do_deinterlace) {
1213 int size;
1214
1215 /* create temporary picture */
1216 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 1217 buf = av_malloc(size);
6291d7e4
AK
1218 if (!buf)
1219 return;
1220
1221 picture2 = &picture_tmp;
1222 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1223
7636c8c6 1224 if (avpicture_deinterlace(picture2, picture,
6291d7e4
AK
1225 dec->pix_fmt, dec->width, dec->height) < 0) {
1226 /* if error, do not deinterlace */
e3245b26 1227 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
6291d7e4
AK
1228 av_free(buf);
1229 buf = NULL;
1230 picture2 = picture;
1231 }
1232 } else {
1233 picture2 = picture;
1234 }
1235
1236 if (picture != picture2)
1237 *picture = *picture2;
1238 *bufp = buf;
1239}
1240
6291d7e4
AK
1241static void do_subtitle_out(AVFormatContext *s,
1242 OutputStream *ost,
1243 InputStream *ist,
1244 AVSubtitle *sub,
1245 int64_t pts)
1246{
1247 static uint8_t *subtitle_out = NULL;
1248 int subtitle_out_max_size = 1024 * 1024;
1249 int subtitle_out_size, nb, i;
1250 AVCodecContext *enc;
1251 AVPacket pkt;
1252
1253 if (pts == AV_NOPTS_VALUE) {
e3245b26 1254 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4
AK
1255 if (exit_on_error)
1256 exit_program(1);
1257 return;
1258 }
1259
1260 enc = ost->st->codec;
1261
1262 if (!subtitle_out) {
1263 subtitle_out = av_malloc(subtitle_out_max_size);
1264 }
1265
1266 /* Note: DVB subtitle need one packet to draw them and one other
1267 packet to clear them */
1268 /* XXX: signal it in the codec context ? */
1269 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1270 nb = 2;
1271 else
1272 nb = 1;
1273
7636c8c6 1274 for (i = 0; i < nb; i++) {
1270e12e
AK
1275 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1276 if (!check_recording_time(ost))
1277 return;
1278
6291d7e4
AK
1279 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1280 // start_display_time is required to be 0
7636c8c6
AD
1281 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1282 sub->end_display_time -= sub->start_display_time;
6291d7e4
AK
1283 sub->start_display_time = 0;
1284 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1285 subtitle_out_max_size, sub);
1286 if (subtitle_out_size < 0) {
e3245b26 1287 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
6291d7e4
AK
1288 exit_program(1);
1289 }
1290
1291 av_init_packet(&pkt);
6291d7e4
AK
1292 pkt.data = subtitle_out;
1293 pkt.size = subtitle_out_size;
7636c8c6 1294 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
6291d7e4
AK
1295 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1296 /* XXX: the pts correction is handled here. Maybe handling
1297 it in the codec would be better */
1298 if (i == 0)
1299 pkt.pts += 90 * sub->start_display_time;
1300 else
1301 pkt.pts += 90 * sub->end_display_time;
1302 }
f15f02c2 1303 write_frame(s, &pkt, ost);
6291d7e4
AK
1304 }
1305}
1306
87ef060c
AC
1307static void do_video_out(AVFormatContext *s,
1308 OutputStream *ost,
87ef060c
AC
1309 AVFrame *in_picture,
1310 int *frame_size, float quality)
1311{
553735f5 1312 int nb_frames, i, ret, format_video_sync;
f593628e 1313 AVCodecContext *enc;
d43040e2 1314 double sync_ipts, delta;
87ef060c
AC
1315
1316 enc = ost->st->codec;
87ef060c 1317
6e983902 1318 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
d43040e2 1319 delta = sync_ipts - ost->sync_opts;
87ef060c
AC
1320
1321 /* by default, we output a single frame */
1322 nb_frames = 1;
1323
1324 *frame_size = 0;
1325
553735f5 1326 format_video_sync = video_sync_method;
e8c04f62
AK
1327 if (format_video_sync == VSYNC_AUTO)
1328 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1329 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
553735f5 1330
d43040e2
AK
1331 switch (format_video_sync) {
1332 case VSYNC_CFR:
7636c8c6 1333 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
d43040e2 1334 if (delta < -1.1)
87ef060c 1335 nb_frames = 0;
d43040e2
AK
1336 else if (delta > 1.1)
1337 nb_frames = lrintf(delta);
1338 break;
1339 case VSYNC_VFR:
1340 if (delta <= -0.6)
1341 nb_frames = 0;
1342 else if (delta > 0.6)
1343 ost->sync_opts = lrintf(sync_ipts);
1344 break;
1345 case VSYNC_PASSTHROUGH:
7636c8c6 1346 ost->sync_opts = lrintf(sync_ipts);
d43040e2
AK
1347 break;
1348 default:
1349 av_assert0(0);
1350 }
87ef060c 1351
96139b5e 1352 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
d43040e2
AK
1353 if (nb_frames == 0) {
1354 nb_frames_drop++;
1355 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 1356 return;
d43040e2
AK
1357 } else if (nb_frames > 1) {
1358 nb_frames_dup += nb_frames - 1;
1359 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1360 }
87ef060c 1361
1270e12e
AK
1362 if (!ost->frame_number)
1363 ost->first_pts = ost->sync_opts;
1364
6291d7e4 1365 /* duplicates frame if needed */
7636c8c6 1366 for (i = 0; i < nb_frames; i++) {
6291d7e4
AK
1367 AVPacket pkt;
1368 av_init_packet(&pkt);
8e37038a
AK
1369 pkt.data = NULL;
1370 pkt.size = 0;
6291d7e4 1371
1270e12e
AK
1372 if (!check_recording_time(ost))
1373 return;
1374
150ddbc1
MR
1375 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1376 enc->codec->id == CODEC_ID_RAWVIDEO) {
6291d7e4 1377 /* raw pictures are written as AVPicture structure to
bb337b4f 1378 avoid any copies. We support temporarily the older
6291d7e4 1379 method. */
f593628e
AC
1380 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1381 enc->coded_frame->top_field_first = in_picture->top_field_first;
4648fe63 1382 pkt.data = (uint8_t *)in_picture;
7636c8c6
AD
1383 pkt.size = sizeof(AVPicture);
1384 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
6291d7e4
AK
1385 pkt.flags |= AV_PKT_FLAG_KEY;
1386
f15f02c2 1387 write_frame(s, &pkt, ost);
6291d7e4 1388 } else {
8e37038a 1389 int got_packet;
6291d7e4
AK
1390 AVFrame big_picture;
1391
4648fe63 1392 big_picture = *in_picture;
6291d7e4
AK
1393 /* better than nothing: use input picture interlaced
1394 settings */
1395 big_picture.interlaced_frame = in_picture->interlaced_frame;
1396 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
828e0bcb 1397 if (ost->top_field_first == -1)
6291d7e4
AK
1398 big_picture.top_field_first = in_picture->top_field_first;
1399 else
828e0bcb 1400 big_picture.top_field_first = !!ost->top_field_first;
6291d7e4
AK
1401 }
1402
f4ad238c 1403 /* handles same_quant here. This is not correct because it may
6291d7e4
AK
1404 not be a global option */
1405 big_picture.quality = quality;
d242d80e 1406 if (!enc->me_threshold)
6291d7e4 1407 big_picture.pict_type = 0;
7636c8c6 1408 big_picture.pts = ost->sync_opts;
6291d7e4
AK
1409 if (ost->forced_kf_index < ost->forced_kf_count &&
1410 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1411 big_picture.pict_type = AV_PICTURE_TYPE_I;
1412 ost->forced_kf_index++;
1413 }
8e37038a 1414 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
6291d7e4 1415 if (ret < 0) {
e3245b26 1416 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6291d7e4
AK
1417 exit_program(1);
1418 }
1419
8e37038a
AK
1420 if (got_packet) {
1421 if (pkt.pts != AV_NOPTS_VALUE)
1422 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1423 if (pkt.dts != AV_NOPTS_VALUE)
1424 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 1425
f15f02c2 1426 write_frame(s, &pkt, ost);
39da3b22
AK
1427 *frame_size = pkt.size;
1428 video_size += pkt.size;
324fbadf 1429
6291d7e4
AK
1430 /* if two pass, output log */
1431 if (ost->logfile && enc->stats_out) {
1432 fprintf(ost->logfile, "%s", enc->stats_out);
1433 }
1434 }
1435 }
1436 ost->sync_opts++;
99932847
AK
1437 /*
1438 * For video, number of frames in == number of packets out.
1439 * But there may be reordering, so we can't throw away frames on encoder
1440 * flush, we need to limit them here, before they go into encoder.
1441 */
1442 ost->frame_number++;
6291d7e4
AK
1443 }
1444}
1445
7636c8c6
AD
1446static double psnr(double d)
1447{
1448 return -10.0 * log(d) / log(10.0);
6291d7e4
AK
1449}
1450
1451static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1452 int frame_size)
1453{
1454 AVCodecContext *enc;
1455 int frame_number;
1456 double ti1, bitrate, avg_bitrate;
1457
1458 /* this is executed just the first time do_video_stats is called */
1459 if (!vstats_file) {
1460 vstats_file = fopen(vstats_filename, "w");
1461 if (!vstats_file) {
1462 perror("fopen");
1463 exit_program(1);
1464 }
1465 }
1466
1467 enc = ost->st->codec;
1468 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1469 frame_number = ost->frame_number;
7636c8c6 1470 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 1471 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 1472 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
AK
1473
1474 fprintf(vstats_file,"f_size= %6d ", frame_size);
1475 /* compute pts value */
1476 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1477 if (ti1 < 0.01)
1478 ti1 = 0.01;
1479
7636c8c6 1480 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
6291d7e4
AK
1481 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1482 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 1483 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
6291d7e4
AK
1484 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1485 }
1486}
1487
ea9367e9 1488static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
1489{
1490 char buf[1024];
1491 OutputStream *ost;
1492 AVFormatContext *oc;
1493 int64_t total_size;
1494 AVCodecContext *enc;
1495 int frame_number, vid, i;
1496 double bitrate, ti1, pts;
1497 static int64_t last_time = -1;
1498 static int qp_histogram[52];
1499
3460dd8a
AK
1500 if (!print_stats && !is_last_report)
1501 return;
1502
6291d7e4
AK
1503 if (!is_last_report) {
1504 int64_t cur_time;
1505 /* display the report every 0.5 seconds */
1506 cur_time = av_gettime();
1507 if (last_time == -1) {
1508 last_time = cur_time;
1509 return;
1510 }
1511 if ((cur_time - last_time) < 500000)
1512 return;
1513 last_time = cur_time;
1514 }
1515
1516
af70aa45 1517 oc = output_files[0].ctx;
6291d7e4
AK
1518
1519 total_size = avio_size(oc->pb);
7636c8c6
AD
1520 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1521 total_size = avio_tell(oc->pb);
6291d7e4
AK
1522
1523 buf[0] = '\0';
1524 ti1 = 1e10;
1525 vid = 0;
ea9367e9 1526 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 1527 float q = -1;
ea9367e9 1528 ost = &output_streams[i];
6291d7e4 1529 enc = ost->st->codec;
3d813e4c 1530 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 1531 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
1532 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1533 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1534 }
1535 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 1536 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
1537
1538 frame_number = ost->frame_number;
1539 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
1540 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1541 if (is_last_report)
6291d7e4 1542 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 1543 if (qp_hist) {
6291d7e4
AK
1544 int j;
1545 int qp = lrintf(q);
7636c8c6 1546 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 1547 qp_histogram[qp]++;
7636c8c6
AD
1548 for (j = 0; j < 32; j++)
1549 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
6291d7e4 1550 }
7636c8c6 1551 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 1552 int j;
7636c8c6
AD
1553 double error, error_sum = 0;
1554 double scale, scale_sum = 0;
1555 char type[3] = { 'Y','U','V' };
6291d7e4 1556 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
1557 for (j = 0; j < 3; j++) {
1558 if (is_last_report) {
1559 error = enc->error[j];
1560 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1561 } else {
1562 error = enc->coded_frame->error[j];
1563 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 1564 }
7636c8c6
AD
1565 if (j)
1566 scale /= 4;
6291d7e4
AK
1567 error_sum += error;
1568 scale_sum += scale;
7636c8c6 1569 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 1570 }
7636c8c6 1571 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
1572 }
1573 vid = 1;
1574 }
1575 /* compute min output value */
1576 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1577 if ((pts < ti1) && (pts > 0))
1578 ti1 = pts;
1579 }
1580 if (ti1 < 0.01)
1581 ti1 = 0.01;
1582
e3245b26 1583 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 1584
e3245b26 1585 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
1586 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1587 (double)total_size / 1024, ti1, bitrate);
1588
e3245b26
AK
1589 if (nb_frames_dup || nb_frames_drop)
1590 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1591 nb_frames_dup, nb_frames_drop);
6291d7e4 1592
f5646a32 1593 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 1594
e3245b26 1595 fflush(stderr);
6291d7e4 1596
e3245b26 1597 if (is_last_report) {
6291d7e4 1598 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
1599 av_log(NULL, AV_LOG_INFO, "\n");
1600 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
1601 video_size / 1024.0,
1602 audio_size / 1024.0,
1603 extra_size / 1024.0,
1604 100.0 * (total_size - raw) / raw
6291d7e4
AK
1605 );
1606 }
1607}
1608
ea9367e9 1609static void flush_encoders(void)
4a4ce2e7
AK
1610{
1611 int i, ret;
1612
ea9367e9
AK
1613 for (i = 0; i < nb_output_streams; i++) {
1614 OutputStream *ost = &output_streams[i];
6f1c66d5
AK
1615 AVCodecContext *enc = ost->st->codec;
1616 AVFormatContext *os = output_files[ost->file_index].ctx;
ee458cb1 1617 int stop_encoding = 0;
6f1c66d5 1618
b62b5cb6 1619 if (!ost->encoding_needed)
6f1c66d5
AK
1620 continue;
1621
7636c8c6 1622 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1623 continue;
150ddbc1 1624 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1625 continue;
1626
7636c8c6 1627 for (;;) {
6f1c66d5 1628 AVPacket pkt;
8e37038a 1629 int fifo_bytes, got_packet;
6f1c66d5 1630 av_init_packet(&pkt);
ee458cb1
JR
1631 pkt.data = NULL;
1632 pkt.size = 0;
6f1c66d5
AK
1633
1634 switch (ost->st->codec->codec_type) {
1635 case AVMEDIA_TYPE_AUDIO:
1636 fifo_bytes = av_fifo_size(ost->fifo);
6f1c66d5 1637 if (fifo_bytes > 0) {
ee458cb1
JR
1638 /* encode any samples remaining in fifo */
1639 int frame_bytes = fifo_bytes;
6f1c66d5
AK
1640
1641 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
ee458cb1
JR
1642
1643 /* pad last frame with silence if needed */
1644 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1645 frame_bytes = enc->frame_size * enc->channels *
1646 av_get_bytes_per_sample(enc->sample_fmt);
6f1c66d5 1647 if (allocated_audio_buf_size < frame_bytes)
4a4ce2e7 1648 exit_program(1);
6f1c66d5 1649 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
4a4ce2e7 1650 }
ee458cb1
JR
1651 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1652 } else {
1653 /* flush encoder with NULL frames until it is done
1654 returning packets */
1655 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1656 stop_encoding = 1;
1657 break;
1658 }
6f1c66d5 1659 }
6f1c66d5
AK
1660 break;
1661 case AVMEDIA_TYPE_VIDEO:
8e37038a 1662 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
6f1c66d5 1663 if (ret < 0) {
e3245b26 1664 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
6f1c66d5
AK
1665 exit_program(1);
1666 }
1667 video_size += ret;
6f1c66d5
AK
1668 if (ost->logfile && enc->stats_out) {
1669 fprintf(ost->logfile, "%s", enc->stats_out);
1670 }
8e37038a 1671 if (!got_packet) {
ee458cb1
JR
1672 stop_encoding = 1;
1673 break;
1674 }
8e37038a
AK
1675 if (pkt.pts != AV_NOPTS_VALUE)
1676 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1677 if (pkt.dts != AV_NOPTS_VALUE)
1678 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 1679 write_frame(os, &pkt, ost);
6f1c66d5
AK
1680 break;
1681 default:
ee458cb1 1682 stop_encoding = 1;
4a4ce2e7 1683 }
ee458cb1 1684 if (stop_encoding)
6f1c66d5 1685 break;
4a4ce2e7
AK
1686 }
1687 }
1688}
1689
7204ec1a
AK
1690/*
1691 * Check whether a packet from ist should be written into ost at this time
1692 */
1693static int check_output_constraints(InputStream *ist, OutputStream *ost)
1694{
1695 OutputFile *of = &output_files[ost->file_index];
1696 int ist_index = ist - input_streams;
1697
1698 if (ost->source_index != ist_index)
1699 return 0;
1700
23576b3f 1701 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
AK
1702 return 0;
1703
7204ec1a
AK
1704 return 1;
1705}
1706
1707static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1708{
1709 OutputFile *of = &output_files[ost->file_index];
1710 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1711 AVPacket opkt;
1712
1713 av_init_packet(&opkt);
1714
1715 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1716 !ost->copy_initial_nonkeyframes)
1717 return;
1718
1270e12e 1719 if (of->recording_time != INT64_MAX &&
23576b3f 1720 ist->last_dts >= of->recording_time + of->start_time) {
1270e12e
AK
1721 ost->is_past_recording_time = 1;
1722 return;
1723 }
1724
7204ec1a
AK
1725 /* force the input stream PTS */
1726 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1727 audio_size += pkt->size;
1728 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1729 video_size += pkt->size;
1730 ost->sync_opts++;
1731 }
1732
7204ec1a
AK
1733 if (pkt->pts != AV_NOPTS_VALUE)
1734 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1735 else
1736 opkt.pts = AV_NOPTS_VALUE;
1737
1738 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1739 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1740 else
1741 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1742 opkt.dts -= ost_tb_start_time;
1743
1744 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1745 opkt.flags = pkt->flags;
1746
7636c8c6
AD
1747 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1748 if ( ost->st->codec->codec_id != CODEC_ID_H264
7204ec1a
AK
1749 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1750 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
ae5a9355 1751 && ost->st->codec->codec_id != CODEC_ID_VC1
7204ec1a
AK
1752 ) {
1753 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1754 opkt.destruct = av_destruct_packet;
1755 } else {
1756 opkt.data = pkt->data;
1757 opkt.size = pkt->size;
1758 }
1759
f15f02c2 1760 write_frame(of->ctx, &opkt, ost);
7204ec1a 1761 ost->st->codec->frame_number++;
7204ec1a
AK
1762 av_free_packet(&opkt);
1763}
1764
2a651b71
AK
1765static void rate_emu_sleep(InputStream *ist)
1766{
1767 if (input_files[ist->file_index].rate_emu) {
23576b3f 1768 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2a651b71
AK
1769 int64_t now = av_gettime() - ist->start;
1770 if (pts > now)
1771 usleep(pts - now);
1772 }
1773}
1774
ded28ba3
AK
1775static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1776{
d1241ff3
JR
1777 AVFrame *decoded_frame;
1778 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1779 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
ded28ba3
AK
1780 int i, ret;
1781
9179f27c 1782 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1783 return AVERROR(ENOMEM);
9179f27c
JR
1784 else
1785 avcodec_get_frame_defaults(ist->decoded_frame);
1786 decoded_frame = ist->decoded_frame;
ded28ba3 1787
d1241ff3
JR
1788 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1789 if (ret < 0) {
ded28ba3 1790 return ret;
d1241ff3 1791 }
ded28ba3 1792
ded28ba3
AK
1793 if (!*got_output) {
1794 /* no audio frame */
af8ad892 1795 return ret;
ded28ba3
AK
1796 }
1797
d1241ff3
JR
1798 /* if the decoder provides a pts, use it instead of the last packet pts.
1799 the decoder could be delaying output by a packet or more. */
1800 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1801 ist->next_dts = decoded_frame->pts;
d1241ff3 1802
3101bb66 1803 /* increment next_dts to use for the case where the input stream does not
d1241ff3 1804 have timestamps or there are multiple frames in the packet */
3101bb66 1805 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
d1241ff3 1806 avctx->sample_rate;
ded28ba3
AK
1807
1808 // preprocess audio (volume)
1809 if (audio_volume != 256) {
d1241ff3
JR
1810 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1811 void *samples = decoded_frame->data[0];
1812 switch (avctx->sample_fmt) {
ded28ba3
AK
1813 case AV_SAMPLE_FMT_U8:
1814 {
1815 uint8_t *volp = samples;
1816 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1817 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1818 *volp++ = av_clip_uint8(v);
1819 }
1820 break;
1821 }
1822 case AV_SAMPLE_FMT_S16:
1823 {
1824 int16_t *volp = samples;
1825 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1826 int v = ((*volp) * audio_volume + 128) >> 8;
1827 *volp++ = av_clip_int16(v);
1828 }
1829 break;
1830 }
1831 case AV_SAMPLE_FMT_S32:
1832 {
1833 int32_t *volp = samples;
1834 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1835 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1836 *volp++ = av_clipl_int32(v);
1837 }
1838 break;
1839 }
1840 case AV_SAMPLE_FMT_FLT:
1841 {
1842 float *volp = samples;
1843 float scale = audio_volume / 256.f;
1844 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1845 *volp++ *= scale;
1846 }
1847 break;
1848 }
1849 case AV_SAMPLE_FMT_DBL:
1850 {
1851 double *volp = samples;
1852 double scale = audio_volume / 256.;
1853 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1854 *volp++ *= scale;
1855 }
1856 break;
1857 }
1858 default:
1859 av_log(NULL, AV_LOG_FATAL,
1860 "Audio volume adjustment on sample format %s is not supported.\n",
1861 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1862 exit_program(1);
1863 }
1864 }
1865
1866 rate_emu_sleep(ist);
1867
1868 for (i = 0; i < nb_output_streams; i++) {
1869 OutputStream *ost = &output_streams[i];
1870
1871 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1872 continue;
d1241ff3 1873 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
ded28ba3 1874 }
110d2af2 1875
af8ad892 1876 return ret;
ded28ba3
AK
1877}
1878
45d4b66f
AK
1879static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1880{
1881 AVFrame *decoded_frame, *filtered_frame = NULL;
1882 void *buffer_to_free = NULL;
1883 int i, ret = 0;
1884 float quality;
45d4b66f 1885 int frame_available = 1;
45d4b66f 1886
9179f27c 1887 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 1888 return AVERROR(ENOMEM);
9179f27c
JR
1889 else
1890 avcodec_get_frame_defaults(ist->decoded_frame);
1891 decoded_frame = ist->decoded_frame;
45d4b66f 1892 pkt->pts = *pkt_pts;
23576b3f 1893 pkt->dts = ist->last_dts;
45d4b66f
AK
1894 *pkt_pts = AV_NOPTS_VALUE;
1895
1896 ret = avcodec_decode_video2(ist->st->codec,
1897 decoded_frame, got_output, pkt);
1898 if (ret < 0)
9179f27c 1899 return ret;
45d4b66f
AK
1900
1901 quality = same_quant ? decoded_frame->quality : 0;
1902 if (!*got_output) {
1903 /* no picture yet */
af8ad892 1904 return ret;
45d4b66f 1905 }
b34856a1
AK
1906 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1907 decoded_frame->pkt_dts);
45d4b66f
AK
1908 pkt->size = 0;
1909 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1910
1911 rate_emu_sleep(ist);
1912
695ec04e
AK
1913 if (ist->st->sample_aspect_ratio.num)
1914 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1915
45d4b66f
AK
1916 for (i = 0; i < nb_output_streams; i++) {
1917 OutputStream *ost = &output_streams[i];
ac646076 1918 int frame_size, resample_changed;
45d4b66f
AK
1919
1920 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1921 continue;
1922
ac646076
AK
1923 resample_changed = ost->resample_width != decoded_frame->width ||
1924 ost->resample_height != decoded_frame->height ||
1925 ost->resample_pix_fmt != decoded_frame->format;
1926 if (resample_changed) {
1927 av_log(NULL, AV_LOG_INFO,
1928 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1929 ist->file_index, ist->st->index,
1930 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1931 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1932
1933 avfilter_graph_free(&ost->graph);
1934 if (configure_video_filters(ist, ost)) {
1935 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1936 exit_program(1);
1937 }
1938
1939 ost->resample_width = decoded_frame->width;
1940 ost->resample_height = decoded_frame->height;
1941 ost->resample_pix_fmt = decoded_frame->format;
1942 }
1943
04a14d4d
AK
1944 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1945 FrameBuffer *buf = decoded_frame->opaque;
1946 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1947 decoded_frame->data, decoded_frame->linesize,
1948 AV_PERM_READ | AV_PERM_PRESERVE,
1949 ist->st->codec->width, ist->st->codec->height,
1950 ist->st->codec->pix_fmt);
1951
1952 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
1953 fb->buf->priv = buf;
1954 fb->buf->free = filter_release_buffer;
1955
1956 buf->refcount++;
1957 av_buffersrc_buffer(ost->input_video_filter, fb);
1958 } else
1959 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
6e983902 1960 decoded_frame->pts, decoded_frame->sample_aspect_ratio);
04a14d4d
AK
1961
1962 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
ce326c11
AK
1963 ret = AVERROR(ENOMEM);
1964 goto fail;
04a14d4d
AK
1965 } else
1966 avcodec_get_frame_defaults(ist->filtered_frame);
1967 filtered_frame = ist->filtered_frame;
1968
1969 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
45d4b66f 1970 while (frame_available) {
b6c4518a 1971 AVFilterBufferRef *picref;
45d4b66f 1972 AVRational ist_pts_tb;
ce326c11 1973 if ((ret = get_filtered_video_frame(ost->output_video_filter,
b6c4518a 1974 filtered_frame, &picref,
ce326c11
AK
1975 &ist_pts_tb)) < 0)
1976 goto fail;
b6c4518a 1977 filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
25142298 1978 if (!ost->frame_aspect_ratio)
b6c4518a 1979 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
45d4b66f 1980
d4936548 1981 do_video_out(output_files[ost->file_index].ctx, ost, filtered_frame, &frame_size,
45d4b66f
AK
1982 same_quant ? quality : ost->st->codec->global_quality);
1983 if (vstats_filename && frame_size)
1984 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
45d4b66f 1985 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
b6c4518a 1986 avfilter_unref_buffer(picref);
45d4b66f 1987 }
45d4b66f
AK
1988 }
1989
ce326c11 1990fail:
45d4b66f 1991 av_free(buffer_to_free);
45d4b66f
AK
1992 return ret;
1993}
1994
9595234c
AK
1995static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1996{
1997 AVSubtitle subtitle;
1998 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1999 &subtitle, got_output, pkt);
2000 if (ret < 0)
2001 return ret;
2002 if (!*got_output)
af8ad892 2003 return ret;
9595234c
AK
2004
2005 rate_emu_sleep(ist);
2006
2007 for (i = 0; i < nb_output_streams; i++) {
2008 OutputStream *ost = &output_streams[i];
2009
2010 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2011 continue;
2012
2013 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2014 }
2015
2016 avsubtitle_free(&subtitle);
af8ad892 2017 return ret;
9595234c
AK
2018}
2019
6291d7e4 2020/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 2021static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 2022{
ffa0674e 2023 int i;
6291d7e4 2024 int got_output;
6291d7e4 2025 int64_t pkt_pts = AV_NOPTS_VALUE;
6291d7e4 2026 AVPacket avpkt;
6291d7e4 2027
3101bb66 2028 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 2029 ist->next_dts = ist->last_dts;
6291d7e4
AK
2030
2031 if (pkt == NULL) {
2032 /* EOF handling */
2033 av_init_packet(&avpkt);
2034 avpkt.data = NULL;
2035 avpkt.size = 0;
2036 goto handle_eof;
2037 } else {
2038 avpkt = *pkt;
2039 }
2040
7636c8c6 2041 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 2042 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
7636c8c6 2043 if (pkt->pts != AV_NOPTS_VALUE)
6291d7e4
AK
2044 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2045
7636c8c6 2046 // while we have more to decode or while the decoder did output something on EOF
2a651b71 2047 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 2048 int ret = 0;
6291d7e4 2049 handle_eof:
6291d7e4 2050
23576b3f 2051 ist->last_dts = ist->next_dts;
8b0268a8
AK
2052
2053 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
2054 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2055 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
2056 ist->showed_multi_packet_warning = 1;
2057 }
6291d7e4 2058
7636c8c6 2059 switch (ist->st->codec->codec_type) {
82963f8f
AK
2060 case AVMEDIA_TYPE_AUDIO:
2061 ret = transcode_audio (ist, &avpkt, &got_output);
2062 break;
2063 case AVMEDIA_TYPE_VIDEO:
2064 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
b34856a1
AK
2065 if (avpkt.duration)
2066 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
722410ad
AK
2067 else if (ist->st->r_frame_rate.num)
2068 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2069 ist->st->r_frame_rate.num},
2070 AV_TIME_BASE_Q);
b34856a1
AK
2071 else if (ist->st->codec->time_base.num != 0) {
2072 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2073 ist->st->codec->ticks_per_frame;
2074 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2075 }
82963f8f
AK
2076 break;
2077 case AVMEDIA_TYPE_SUBTITLE:
2078 ret = transcode_subtitles(ist, &avpkt, &got_output);
2079 break;
78162b4e
AK
2080 default:
2081 return -1;
2082 }
6291d7e4 2083
d3c1d37a
AK
2084 if (ret < 0)
2085 return ret;
aa38cff2
JG
2086 // touch data and size only if not EOF
2087 if (pkt) {
2088 avpkt.data += ret;
2089 avpkt.size -= ret;
2090 }
82963f8f 2091 if (!got_output) {
af8ad892 2092 continue;
82963f8f 2093 }
6291d7e4 2094 }
6291d7e4 2095
7204ec1a 2096 /* handle stream copy */
2a651b71
AK
2097 if (!ist->decoding_needed) {
2098 rate_emu_sleep(ist);
23576b3f 2099 ist->last_dts = ist->next_dts;
2a651b71
AK
2100 switch (ist->st->codec->codec_type) {
2101 case AVMEDIA_TYPE_AUDIO:
3101bb66 2102 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
2103 ist->st->codec->sample_rate;
2104 break;
2105 case AVMEDIA_TYPE_VIDEO:
2106 if (ist->st->codec->time_base.num != 0) {
7636c8c6 2107 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 2108 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
2109 ist->st->codec->time_base.num * ticks) /
2110 ist->st->codec->time_base.den;
2111 }
2112 break;
2113 }
2114 }
ea9367e9
AK
2115 for (i = 0; pkt && i < nb_output_streams; i++) {
2116 OutputStream *ost = &output_streams[i];
7204ec1a
AK
2117
2118 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2119 continue;
2120
2121 do_streamcopy(ist, ost, pkt);
2122 }
2123
6291d7e4
AK
2124 return 0;
2125}
2126
ea9367e9 2127static void print_sdp(void)
6291d7e4
AK
2128{
2129 char sdp[2048];
af70aa45 2130 int i;
ea9367e9 2131 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
2132
2133 if (!avc)
2134 exit_program(1);
ea9367e9 2135 for (i = 0; i < nb_output_files; i++)
af70aa45 2136 avc[i] = output_files[i].ctx;
6291d7e4 2137
ea9367e9 2138 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
2139 printf("SDP:\n%s\n", sdp);
2140 fflush(stdout);
af70aa45 2141 av_freep(&avc);
6291d7e4
AK
2142}
2143
d3c59d50
JR
2144static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
2145{
2146 char layout_name[256];
2147 AVCodecContext *enc = ost->st->codec;
2148 AVCodecContext *dec = ist->st->codec;
2149
2150 if (!dec->channel_layout) {
2151 if (enc->channel_layout && dec->channels == enc->channels) {
2152 dec->channel_layout = enc->channel_layout;
2153 } else {
2154 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2155
2156 if (!dec->channel_layout) {
2157 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2158 "layout for Input Stream #%d.%d\n", ist->file_index,
2159 ist->st->index);
2160 exit_program(1);
2161 }
2162 }
2163 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2164 dec->channels, dec->channel_layout);
2165 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2166 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2167 }
2168 if (!enc->channel_layout) {
2169 if (dec->channels == enc->channels) {
2170 enc->channel_layout = dec->channel_layout;
2171 return;
2172 } else {
2173 enc->channel_layout = av_get_default_channel_layout(enc->channels);
2174 }
2175 if (!enc->channel_layout) {
2176 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
2177 "for Output Stream #%d.%d\n", ost->file_index,
2178 ost->st->index);
2179 exit_program(1);
2180 }
2181 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2182 enc->channels, enc->channel_layout);
2183 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
2184 "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
2185 }
2186}
2187
2188
ea9367e9 2189static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
2190{
2191 int i;
2192 InputStream *ist = &input_streams[ist_index];
2193 if (ist->decoding_needed) {
2194 AVCodec *codec = ist->dec;
630902a1 2195 if (!codec) {
9a414d89 2196 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
2197 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2198 return AVERROR(EINVAL);
2199 }
2200
2201 /* update requested sample format for the decoder based on the
2202 corresponding encoder sample format */
2203 for (i = 0; i < nb_output_streams; i++) {
2204 OutputStream *ost = &output_streams[i];
2205 if (ost->source_index == ist_index) {
2206 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2207 break;
2208 }
2209 }
2210
64dca32c
AK
2211 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2212 ist->st->codec->get_buffer = codec_get_buffer;
2213 ist->st->codec->release_buffer = codec_release_buffer;
2214 ist->st->codec->opaque = ist;
2215 }
2216
2473a45c
JG
2217 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2218 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 2219 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 2220 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
2221 ist->file_index, ist->st->index);
2222 return AVERROR(EINVAL);
2223 }
2224 assert_codec_experimental(ist->st->codec, 0);
2225 assert_avoptions(ist->opts);
d3c59d50
JR
2226
2227 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2228 for (i = 0; i < nb_output_streams; i++) {
2229 OutputStream *ost = &output_streams[i];
2230 if (ost->source_index == ist_index) {
2231 if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
2232 get_default_channel_layouts(ost, ist);
2233 break;
2234 }
2235 }
2236 }
630902a1
AK
2237 }
2238
23576b3f 2239 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 2240 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
2241 init_pts_correction(&ist->pts_ctx);
2242 ist->is_start = 1;
2243
2244 return 0;
2245}
2246
ea9367e9 2247static int transcode_init(void)
6291d7e4 2248{
2c474ddb 2249 int ret = 0, i, j, k;
1bb77e51 2250 AVFormatContext *oc;
6291d7e4 2251 AVCodecContext *codec, *icodec;
4288e031 2252 OutputStream *ost;
6291d7e4
AK
2253 InputStream *ist;
2254 char error[1024];
2255 int want_sdp = 1;
b0c9e8e0 2256
f4805328
AK
2257 /* init framerate emulation */
2258 for (i = 0; i < nb_input_files; i++) {
2259 InputFile *ifile = &input_files[i];
2260 if (ifile->rate_emu)
2261 for (j = 0; j < ifile->nb_streams; j++)
2262 input_streams[j + ifile->ist_index].start = av_gettime();
2263 }
6291d7e4
AK
2264
2265 /* output stream init */
03f30c83 2266 for (i = 0; i < nb_output_files; i++) {
1bb77e51
AK
2267 oc = output_files[i].ctx;
2268 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2269 av_dump_format(oc, i, oc->filename, 1);
e3245b26 2270 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 2271 return AVERROR(EINVAL);
6291d7e4 2272 }
6291d7e4
AK
2273 }
2274
2275 /* for each output stream, we compute the right encoding parameters */
4288e031
AK
2276 for (i = 0; i < nb_output_streams; i++) {
2277 ost = &output_streams[i];
03f30c83 2278 oc = output_files[ost->file_index].ctx;
6291d7e4
AK
2279 ist = &input_streams[ost->source_index];
2280
4dbc6cee
AK
2281 if (ost->attachment_filename)
2282 continue;
2283
03f30c83 2284 codec = ost->st->codec;
6291d7e4
AK
2285 icodec = ist->st->codec;
2286
03f30c83
AK
2287 ost->st->disposition = ist->st->disposition;
2288 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
6291d7e4
AK
2289 codec->chroma_sample_location = icodec->chroma_sample_location;
2290
3d813e4c 2291 if (ost->stream_copy) {
6291d7e4
AK
2292 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2293
e6d2b737 2294 if (extra_size > INT_MAX) {
eaf2d37a 2295 return AVERROR(EINVAL);
e6d2b737 2296 }
6291d7e4
AK
2297
2298 /* if stream_copy is selected, no need to decode or encode */
03f30c83 2299 codec->codec_id = icodec->codec_id;
6291d7e4
AK
2300 codec->codec_type = icodec->codec_type;
2301
03f30c83
AK
2302 if (!codec->codec_tag) {
2303 if (!oc->oformat->codec_tag ||
2304 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2305 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
2306 codec->codec_tag = icodec->codec_tag;
2307 }
2308
03f30c83 2309 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
2310 codec->rc_max_rate = icodec->rc_max_rate;
2311 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 2312 codec->field_order = icodec->field_order;
03f30c83 2313 codec->extradata = av_mallocz(extra_size);
e6d2b737 2314 if (!codec->extradata) {
eaf2d37a 2315 return AVERROR(ENOMEM);
e6d2b737 2316 }
6291d7e4 2317 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 2318 codec->extradata_size = icodec->extradata_size;
7bb3e625 2319 if (!copy_tb) {
03f30c83 2320 codec->time_base = icodec->time_base;
6291d7e4
AK
2321 codec->time_base.num *= icodec->ticks_per_frame;
2322 av_reduce(&codec->time_base.num, &codec->time_base.den,
2323 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 2324 } else
6291d7e4 2325 codec->time_base = ist->st->time_base;
03f30c83 2326
7636c8c6 2327 switch (codec->codec_type) {
6291d7e4 2328 case AVMEDIA_TYPE_AUDIO:
7636c8c6 2329 if (audio_volume != 256) {
e3245b26 2330 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
6291d7e4
AK
2331 exit_program(1);
2332 }
03f30c83
AK
2333 codec->channel_layout = icodec->channel_layout;
2334 codec->sample_rate = icodec->sample_rate;
2335 codec->channels = icodec->channels;
2336 codec->frame_size = icodec->frame_size;
6291d7e4 2337 codec->audio_service_type = icodec->audio_service_type;
03f30c83 2338 codec->block_align = icodec->block_align;
6291d7e4
AK
2339 break;
2340 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
2341 codec->pix_fmt = icodec->pix_fmt;
2342 codec->width = icodec->width;
2343 codec->height = icodec->height;
2344 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 2345 if (!codec->sample_aspect_ratio.num) {
03f30c83 2346 codec->sample_aspect_ratio =
6291d7e4
AK
2347 ost->st->sample_aspect_ratio =
2348 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2349 ist->st->codec->sample_aspect_ratio.num ?
2350 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2351 }
2352 break;
2353 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 2354 codec->width = icodec->width;
6291d7e4
AK
2355 codec->height = icodec->height;
2356 break;
2357 case AVMEDIA_TYPE_DATA:
3ccd1580 2358 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
2359 break;
2360 default:
2361 abort();
2362 }
2363 } else {
2364 if (!ost->enc)
2365 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
03f30c83 2366
11fdb7e1
AK
2367 ist->decoding_needed = 1;
2368 ost->encoding_needed = 1;
03f30c83 2369
7636c8c6 2370 switch (codec->codec_type) {
6291d7e4 2371 case AVMEDIA_TYPE_AUDIO:
03f30c83 2372 ost->fifo = av_fifo_alloc(1024);
e6d2b737 2373 if (!ost->fifo) {
eaf2d37a 2374 return AVERROR(ENOMEM);
e6d2b737 2375 }
6291d7e4 2376 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
03f30c83 2377
d0a19696 2378 if (!codec->sample_rate)
6291d7e4 2379 codec->sample_rate = icodec->sample_rate;
6291d7e4 2380 choose_sample_rate(ost->st, ost->enc);
7636c8c6 2381 codec->time_base = (AVRational){ 1, codec->sample_rate };
03f30c83 2382
6291d7e4
AK
2383 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2384 codec->sample_fmt = icodec->sample_fmt;
2385 choose_sample_fmt(ost->st, ost->enc);
03f30c83 2386
6291d7e4
AK
2387 if (!codec->channels)
2388 codec->channels = icodec->channels;
2389 codec->channel_layout = icodec->channel_layout;
2390 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2391 codec->channel_layout = 0;
03f30c83
AK
2392
2393 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2394 icodec->request_channels = codec-> channels;
6291d7e4
AK
2395 ost->resample_sample_fmt = icodec->sample_fmt;
2396 ost->resample_sample_rate = icodec->sample_rate;
2397 ost->resample_channels = icodec->channels;
2398 break;
2399 case AVMEDIA_TYPE_VIDEO:
2400 if (codec->pix_fmt == PIX_FMT_NONE)
2401 codec->pix_fmt = icodec->pix_fmt;
2402 choose_pixel_fmt(ost->st, ost->enc);
2403
2404 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
e3245b26 2405 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
6291d7e4
AK
2406 exit_program(1);
2407 }
2408
2409 if (!codec->width || !codec->height) {
2410 codec->width = icodec->width;
2411 codec->height = icodec->height;
2412 }
2413
2414 ost->video_resample = codec->width != icodec->width ||
2415 codec->height != icodec->height ||
2416 codec->pix_fmt != icodec->pix_fmt;
2417 if (ost->video_resample) {
7636c8c6 2418 codec->bits_per_raw_sample = 0;
6291d7e4
AK
2419 }
2420
03f30c83
AK
2421 ost->resample_height = icodec->height;
2422 ost->resample_width = icodec->width;
2423 ost->resample_pix_fmt = icodec->pix_fmt;
6291d7e4 2424
832ba44d
AK
2425 /*
2426 * We want CFR output if and only if one of those is true:
2427 * 1) user specified output framerate with -r
2428 * 2) user specified -vsync cfr
2429 * 3) output format is CFR and the user didn't force vsync to
2430 * something else than CFR
2431 *
2432 * in such a case, set ost->frame_rate
2433 */
2434 if (!ost->frame_rate.num &&
2435 (video_sync_method == VSYNC_CFR ||
2436 (video_sync_method == VSYNC_AUTO &&
2437 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2438 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2439 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2440 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2441 ost->frame_rate = ost->enc->supported_framerates[idx];
2442 }
6291d7e4 2443 }
832ba44d
AK
2444 if (ost->frame_rate.num) {
2445 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2446 video_sync_method = VSYNC_CFR;
2447 } else
2448 codec->time_base = ist->st->time_base;
6291d7e4 2449
6291d7e4 2450 if (configure_video_filters(ist, ost)) {
e3245b26 2451 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
6291d7e4
AK
2452 exit(1);
2453 }
6291d7e4
AK
2454 break;
2455 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 2456 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
2457 break;
2458 default:
2459 abort();
2460 break;
2461 }
2462 /* two pass mode */
515901fa 2463 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
2464 char logfilename[1024];
2465 FILE *f;
2466
2467 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2468 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2469 i);
6e8be949
AK
2470 if (!strcmp(ost->enc->name, "libx264")) {
2471 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2472 } else {
64334ddb
AK
2473 if (codec->flags & CODEC_FLAG_PASS1) {
2474 f = fopen(logfilename, "wb");
2475 if (!f) {
2476 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2477 logfilename, strerror(errno));
2478 exit_program(1);
2479 }
2480 ost->logfile = f;
2481 } else {
2482 char *logbuffer;
2483 size_t logbuffer_size;
2484 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2485 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2486 logfilename);
2487 exit_program(1);
2488 }
2489 codec->stats_in = logbuffer;
6291d7e4 2490 }
6e8be949 2491 }
6291d7e4
AK
2492 }
2493 }
6291d7e4
AK
2494 }
2495
2496 /* open each encoder */
4288e031
AK
2497 for (i = 0; i < nb_output_streams; i++) {
2498 ost = &output_streams[i];
6291d7e4 2499 if (ost->encoding_needed) {
03f30c83 2500 AVCodec *codec = ost->enc;
6291d7e4
AK
2501 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2502 if (!codec) {
9a414d89 2503 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
6291d7e4
AK
2504 ost->st->codec->codec_id, ost->file_index, ost->index);
2505 ret = AVERROR(EINVAL);
2506 goto dump_format;
2507 }
2508 if (dec->subtitle_header) {
2509 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2510 if (!ost->st->codec->subtitle_header) {
2511 ret = AVERROR(ENOMEM);
2512 goto dump_format;
2513 }
2514 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2515 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2516 }
2473a45c
JG
2517 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2518 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 2519 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 2520 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
2521 ost->file_index, ost->index);
2522 ret = AVERROR(EINVAL);
2523 goto dump_format;
2524 }
2525 assert_codec_experimental(ost->st->codec, 1);
2526 assert_avoptions(ost->opts);
2527 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2528 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2529 "It takes bits/s as argument, not kbits/s\n");
2530 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
2531
2532 if (ost->st->codec->me_threshold)
2533 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
2534 }
2535 }
2536
630902a1
AK
2537 /* init input streams */
2538 for (i = 0; i < nb_input_streams; i++)
ea9367e9 2539 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 2540 goto dump_format;
6291d7e4 2541
2c474ddb
AK
2542 /* discard unused programs */
2543 for (i = 0; i < nb_input_files; i++) {
2544 InputFile *ifile = &input_files[i];
2545 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2546 AVProgram *p = ifile->ctx->programs[j];
2547 int discard = AVDISCARD_ALL;
2548
2549 for (k = 0; k < p->nb_stream_indexes; k++)
2550 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2551 discard = AVDISCARD_DEFAULT;
2552 break;
2553 }
2554 p->discard = discard;
2555 }
2556 }
2557
6291d7e4 2558 /* open files and write file headers */
af70aa45 2559 for (i = 0; i < nb_output_files; i++) {
1bb77e51
AK
2560 oc = output_files[i].ctx;
2561 oc->interrupt_callback = int_cb;
2562 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
6291d7e4
AK
2563 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2564 ret = AVERROR(EINVAL);
2565 goto dump_format;
2566 }
af70aa45 2567 assert_avoptions(output_files[i].opts);
1bb77e51 2568 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2569 want_sdp = 0;
2570 }
2571 }
2572
2573 dump_format:
2574 /* dump the file output parameters - cannot be done before in case
2575 of stream copy */
03f30c83 2576 for (i = 0; i < nb_output_files; i++) {
af70aa45 2577 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
6291d7e4
AK
2578 }
2579
2580 /* dump the stream mapping */
e3245b26
AK
2581 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2582 for (i = 0; i < nb_output_streams; i++) {
2583 ost = &output_streams[i];
4dbc6cee
AK
2584
2585 if (ost->attachment_filename) {
2586 /* an attached file */
2587 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2588 ost->attachment_filename, ost->file_index, ost->index);
2589 continue;
2590 }
9a414d89 2591 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
e3245b26
AK
2592 input_streams[ost->source_index].file_index,
2593 input_streams[ost->source_index].st->index,
2594 ost->file_index,
2595 ost->index);
2596 if (ost->sync_ist != &input_streams[ost->source_index])
9a414d89 2597 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2598 ost->sync_ist->file_index,
2599 ost->sync_ist->st->index);
3d813e4c 2600 if (ost->stream_copy)
e3245b26
AK
2601 av_log(NULL, AV_LOG_INFO, " (copy)");
2602 else
2603 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2604 input_streams[ost->source_index].dec->name : "?",
2605 ost->enc ? ost->enc->name : "?");
2606 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2607 }
2608
2609 if (ret) {
e3245b26 2610 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2611 return ret;
6291d7e4
AK
2612 }
2613
2614 if (want_sdp) {
ea9367e9 2615 print_sdp();
6291d7e4
AK
2616 }
2617
eaf2d37a
AC
2618 return 0;
2619}
2620
2621/*
2622 * The following code is the main loop of the file converter
2623 */
ea9367e9 2624static int transcode(void)
eaf2d37a
AC
2625{
2626 int ret, i;
2627 AVFormatContext *is, *os;
2628 OutputStream *ost;
2629 InputStream *ist;
2630 uint8_t *no_packet;
7636c8c6 2631 int no_packet_count = 0;
eaf2d37a
AC
2632 int64_t timer_start;
2633
2634 if (!(no_packet = av_mallocz(nb_input_files)))
2635 exit_program(1);
2636
ea9367e9 2637 ret = transcode_init();
eaf2d37a
AC
2638 if (ret < 0)
2639 goto fail;
2640
e3245b26 2641 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2642 term_init();
2643
2644 timer_start = av_gettime();
2645
7636c8c6 2646 for (; received_sigterm == 0;) {
6291d7e4
AK
2647 int file_index, ist_index;
2648 AVPacket pkt;
9be3c124 2649 int64_t ipts_min;
6291d7e4
AK
2650 double opts_min;
2651
9be3c124 2652 ipts_min = INT64_MAX;
7636c8c6 2653 opts_min = 1e100;
6291d7e4
AK
2654
2655 /* select the stream that we must read now by looking at the
2656 smallest output pts */
2657 file_index = -1;
4288e031 2658 for (i = 0; i < nb_output_streams; i++) {
f21f294e 2659 OutputFile *of;
9be3c124
AC
2660 int64_t ipts;
2661 double opts;
4288e031 2662 ost = &output_streams[i];
f21f294e 2663 of = &output_files[ost->file_index];
af70aa45 2664 os = output_files[ost->file_index].ctx;
6291d7e4 2665 ist = &input_streams[ost->source_index];
f21f294e
AK
2666 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2667 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
6291d7e4 2668 continue;
c0931508 2669 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
23576b3f 2670 ipts = ist->last_dts;
7636c8c6
AD
2671 if (!input_files[ist->file_index].eof_reached) {
2672 if (ipts < ipts_min) {
6291d7e4 2673 ipts_min = ipts;
7636c8c6
AD
2674 if (input_sync)
2675 file_index = ist->file_index;
6291d7e4 2676 }
7636c8c6 2677 if (opts < opts_min) {
6291d7e4 2678 opts_min = opts;
7636c8c6 2679 if (!input_sync) file_index = ist->file_index;
6291d7e4
AK
2680 }
2681 }
96139b5e
AK
2682 if (ost->frame_number >= ost->max_frames) {
2683 int j;
9b921a82
AK
2684 for (j = 0; j < of->ctx->nb_streams; j++)
2685 output_streams[of->ost_index + j].is_past_recording_time = 1;
96139b5e 2686 continue;
6291d7e4
AK
2687 }
2688 }
2689 /* if none, if is finished */
2690 if (file_index < 0) {
7636c8c6
AD
2691 if (no_packet_count) {
2692 no_packet_count = 0;
b0c9e8e0 2693 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2694 usleep(10000);
2695 continue;
2696 }
2697 break;
2698 }
2699
6291d7e4 2700 /* read a frame from it and output it in the fifo */
7636c8c6
AD
2701 is = input_files[file_index].ctx;
2702 ret = av_read_frame(is, &pkt);
2703 if (ret == AVERROR(EAGAIN)) {
2704 no_packet[file_index] = 1;
6291d7e4
AK
2705 no_packet_count++;
2706 continue;
2707 }
2708 if (ret < 0) {
2709 input_files[file_index].eof_reached = 1;
2710 if (opt_shortest)
2711 break;
2712 else
2713 continue;
2714 }
2715
7636c8c6 2716 no_packet_count = 0;
b0c9e8e0 2717 memset(no_packet, 0, nb_input_files);
6291d7e4
AK
2718
2719 if (do_pkt_dump) {
2720 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2721 is->streams[pkt.stream_index]);
2722 }
2723 /* the following test is needed in case new streams appear
2724 dynamically in stream : we ignore them */
ed5b1326 2725 if (pkt.stream_index >= input_files[file_index].nb_streams)
6291d7e4
AK
2726 goto discard_packet;
2727 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2728 ist = &input_streams[ist_index];
2729 if (ist->discard)
2730 goto discard_packet;
2731
2732 if (pkt.dts != AV_NOPTS_VALUE)
2733 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2734 if (pkt.pts != AV_NOPTS_VALUE)
2735 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2736
7636c8c6 2737 if (pkt.pts != AV_NOPTS_VALUE)
33f75d72 2738 pkt.pts *= ist->ts_scale;
7636c8c6 2739 if (pkt.dts != AV_NOPTS_VALUE)
33f75d72 2740 pkt.dts *= ist->ts_scale;
6291d7e4 2741
7636c8c6 2742 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3101bb66 2743 // ist->next_dts,
7636c8c6
AD
2744 // pkt.dts, input_files[ist->file_index].ts_offset,
2745 // ist->st->codec->codec_type);
3101bb66 2746 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
6291d7e4 2747 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
7636c8c6 2748 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3101bb66 2749 int64_t delta = pkt_dts - ist->next_dts;
23576b3f 2750 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
6291d7e4 2751 input_files[ist->file_index].ts_offset -= delta;
7636c8c6
AD
2752 av_log(NULL, AV_LOG_DEBUG,
2753 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
e3245b26 2754 delta, input_files[ist->file_index].ts_offset);
6291d7e4 2755 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
7636c8c6 2756 if (pkt.pts != AV_NOPTS_VALUE)
6291d7e4
AK
2757 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2758 }
2759 }
2760
7636c8c6 2761 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
ea9367e9 2762 if (output_packet(ist, &pkt) < 0) {
6291d7e4 2763
9a414d89 2764 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
e3245b26 2765 ist->file_index, ist->st->index);
6291d7e4
AK
2766 if (exit_on_error)
2767 exit_program(1);
2768 av_free_packet(&pkt);
b9630bcf 2769 continue;
6291d7e4
AK
2770 }
2771
2772 discard_packet:
2773 av_free_packet(&pkt);
2774
2775 /* dump report by using the output first video and audio streams */
ea9367e9 2776 print_report(0, timer_start);
6291d7e4
AK
2777 }
2778
2779 /* at the end of stream, we must flush the decoder buffers */
2780 for (i = 0; i < nb_input_streams; i++) {
2781 ist = &input_streams[i];
2782 if (ist->decoding_needed) {
ea9367e9 2783 output_packet(ist, NULL);
6291d7e4
AK
2784 }
2785 }
ea9367e9 2786 flush_encoders();
6291d7e4
AK
2787
2788 term_exit();
2789
2790 /* write the trailer if needed and close file */
7636c8c6 2791 for (i = 0; i < nb_output_files; i++) {
af70aa45 2792 os = output_files[i].ctx;
6291d7e4
AK
2793 av_write_trailer(os);
2794 }
2795
2796 /* dump report by using the first video and audio streams */
ea9367e9 2797 print_report(1, timer_start);
6291d7e4
AK
2798
2799 /* close each encoder */
4288e031
AK
2800 for (i = 0; i < nb_output_streams; i++) {
2801 ost = &output_streams[i];
6291d7e4
AK
2802 if (ost->encoding_needed) {
2803 av_freep(&ost->st->codec->stats_in);
2804 avcodec_close(ost->st->codec);
2805 }
6291d7e4 2806 avfilter_graph_free(&ost->graph);
6291d7e4
AK
2807 }
2808
2809 /* close each decoder */
2810 for (i = 0; i < nb_input_streams; i++) {
2811 ist = &input_streams[i];
2812 if (ist->decoding_needed) {
2813 avcodec_close(ist->st->codec);
2814 }
2815 }
2816
2817 /* finished ! */
2818 ret = 0;
2819
2820 fail:
b0c9e8e0 2821 av_freep(&no_packet);
6291d7e4 2822
4288e031
AK
2823 if (output_streams) {
2824 for (i = 0; i < nb_output_streams; i++) {
2825 ost = &output_streams[i];
6291d7e4 2826 if (ost) {
3d813e4c 2827 if (ost->stream_copy)
6291d7e4
AK
2828 av_freep(&ost->st->codec->extradata);
2829 if (ost->logfile) {
2830 fclose(ost->logfile);
2831 ost->logfile = NULL;
2832 }
2833 av_fifo_free(ost->fifo); /* works even if fifo is not
2834 initialized but set to zero */
2835 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2836 av_free(ost->forced_kf_pts);
6291d7e4
AK
2837 if (ost->resample)
2838 audio_resample_close(ost->resample);
2839 if (ost->reformat_ctx)
2840 av_audio_convert_free(ost->reformat_ctx);
2841 av_dict_free(&ost->opts);
6291d7e4
AK
2842 }
2843 }
6291d7e4
AK
2844 }
2845 return ret;
2846}
2847
ca46fde7 2848static double parse_frame_aspect_ratio(const char *arg)
6291d7e4
AK
2849{
2850 int x = 0, y = 0;
2851 double ar = 0;
2852 const char *p;
2853 char *end;
2854
2855 p = strchr(arg, ':');
2856 if (p) {
2857 x = strtol(arg, &end, 10);
2858 if (end == p)
7636c8c6 2859 y = strtol(end + 1, &end, 10);
6291d7e4
AK
2860 if (x > 0 && y > 0)
2861 ar = (double)x / (double)y;
2862 } else
2863 ar = strtod(arg, NULL);
2864
2865 if (!ar) {
e3245b26 2866 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
ca46fde7 2867 exit_program(1);
6291d7e4 2868 }
ca46fde7 2869 return ar;
6291d7e4
AK
2870}
2871
35e6f8c1 2872static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2873{
35e6f8c1 2874 return parse_option(o, "codec:a", arg, options);
6291d7e4
AK
2875}
2876
35e6f8c1 2877static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2878{
35e6f8c1 2879 return parse_option(o, "codec:v", arg, options);
6291d7e4
AK
2880}
2881
35e6f8c1 2882static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2883{
35e6f8c1 2884 return parse_option(o, "codec:s", arg, options);
6291d7e4
AK
2885}
2886
35e6f8c1 2887static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2888{
35e6f8c1 2889 return parse_option(o, "codec:d", arg, options);
6291d7e4
AK
2890}
2891
575ec4e1 2892static int opt_map(OptionsContext *o, const char *opt, const char *arg)
6291d7e4 2893{
8d2e4a7e
AK
2894 StreamMap *m = NULL;
2895 int i, negative = 0, file_idx;
2896 int sync_file_idx = -1, sync_stream_idx;
2897 char *p, *sync;
2898 char *map;
6291d7e4 2899
8d2e4a7e
AK
2900 if (*arg == '-') {
2901 negative = 1;
2902 arg++;
2903 }
2904 map = av_strdup(arg);
6291d7e4 2905
8d2e4a7e
AK
2906 /* parse sync stream first, just pick first matching stream */
2907 if (sync = strchr(map, ',')) {
2908 *sync = 0;
2909 sync_file_idx = strtol(sync + 1, &sync, 0);
2910 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
f24facd3 2911 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
8d2e4a7e
AK
2912 exit_program(1);
2913 }
2914 if (*sync)
2915 sync++;
ed5b1326 2916 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
8d2e4a7e
AK
2917 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2918 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2919 sync_stream_idx = i;
2920 break;
2921 }
ed5b1326 2922 if (i == input_files[sync_file_idx].nb_streams) {
f24facd3 2923 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
8d2e4a7e
AK
2924 "match any streams.\n", arg);
2925 exit_program(1);
2926 }
2927 }
6291d7e4 2928
8d2e4a7e
AK
2929
2930 file_idx = strtol(map, &p, 0);
2931 if (file_idx >= nb_input_files || file_idx < 0) {
f24facd3 2932 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
8d2e4a7e 2933 exit_program(1);
6291d7e4 2934 }
8d2e4a7e
AK
2935 if (negative)
2936 /* disable some already defined maps */
575ec4e1
AK
2937 for (i = 0; i < o->nb_stream_maps; i++) {
2938 m = &o->stream_maps[i];
e6674f68
AK
2939 if (file_idx == m->file_index &&
2940 check_stream_specifier(input_files[m->file_index].ctx,
8d2e4a7e
AK
2941 input_files[m->file_index].ctx->streams[m->stream_index],
2942 *p == ':' ? p + 1 : p) > 0)
2943 m->disabled = 1;
2944 }
2945 else
ed5b1326 2946 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
8d2e4a7e
AK
2947 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2948 *p == ':' ? p + 1 : p) <= 0)
2949 continue;
575ec4e1
AK
2950 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2951 &o->nb_stream_maps, o->nb_stream_maps + 1);
2952 m = &o->stream_maps[o->nb_stream_maps - 1];
8d2e4a7e
AK
2953
2954 m->file_index = file_idx;
2955 m->stream_index = i;
2956
2957 if (sync_file_idx >= 0) {
2958 m->sync_file_index = sync_file_idx;
2959 m->sync_stream_index = sync_stream_idx;
2960 } else {
2961 m->sync_file_index = file_idx;
2962 m->sync_stream_index = i;
2963 }
2964 }
2965
2966 if (!m) {
f24facd3 2967 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
8d2e4a7e
AK
2968 exit_program(1);
2969 }
2970
2971 av_freep(&map);
6291d7e4
AK
2972 return 0;
2973}
2974
4dbc6cee
AK
2975static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2976{
2977 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2978 &o->nb_attachments, o->nb_attachments + 1);
2979 o->attachments[o->nb_attachments - 1] = arg;
2980 return 0;
2981}
2982
a7b5e841
AK
2983/**
2984 * Parse a metadata specifier in arg.
2985 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2986 * @param index for type c/p, chapter/program index is written here
2987 * @param stream_spec for type s, the stream specifier is written here
2988 */
2989static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
6291d7e4 2990{
039267f1 2991 if (*arg) {
a2a38d96 2992 *type = *arg;
6291d7e4
AK
2993 switch (*arg) {
2994 case 'g':
2995 break;
2996 case 's':
a7b5e841
AK
2997 if (*(++arg) && *arg != ':') {
2998 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2999 exit_program(1);
3000 }
3001 *stream_spec = *arg == ':' ? arg + 1 : "";
3002 break;
6291d7e4
AK
3003 case 'c':
3004 case 'p':
e6e6060c
AK
3005 if (*(++arg) == ':')
3006 *index = strtol(++arg, NULL, 0);
6291d7e4
AK
3007 break;
3008 default:
e3245b26 3009 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
6291d7e4
AK
3010 exit_program(1);
3011 }
3012 } else
3013 *type = 'g';
3014}
3015
a7b5e841 3016static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
6291d7e4 3017{
a7b5e841
AK
3018 AVDictionary **meta_in = NULL;
3019 AVDictionary **meta_out;
3020 int i, ret = 0;
3021 char type_in, type_out;
3022 const char *istream_spec = NULL, *ostream_spec = NULL;
3023 int idx_in = 0, idx_out = 0;
6291d7e4 3024
a7b5e841
AK
3025 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3026 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
6291d7e4 3027
a7b5e841 3028 if (type_in == 'g' || type_out == 'g')
847529f8 3029 o->metadata_global_manual = 1;
a7b5e841 3030 if (type_in == 's' || type_out == 's')
847529f8 3031 o->metadata_streams_manual = 1;
a7b5e841 3032 if (type_in == 'c' || type_out == 'c')
847529f8 3033 o->metadata_chapters_manual = 1;
6291d7e4 3034
a7b5e841
AK
3035#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3036 if ((index) < 0 || (index) >= (nb_elems)) {\
3037 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3038 (desc), (index));\
3039 exit_program(1);\
3040 }
3041
3042#define SET_DICT(type, meta, context, index)\
3043 switch (type) {\
3044 case 'g':\
3045 meta = &context->metadata;\
3046 break;\
3047 case 'c':\
3048 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3049 meta = &context->chapters[index]->metadata;\
3050 break;\
3051 case 'p':\
3052 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3053 meta = &context->programs[index]->metadata;\
3054 break;\
3055 }\
3056
3057 SET_DICT(type_in, meta_in, ic, idx_in);
3058 SET_DICT(type_out, meta_out, oc, idx_out);
3059
3060 /* for input streams choose first matching stream */
3061 if (type_in == 's') {
3062 for (i = 0; i < ic->nb_streams; i++) {
3063 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3064 meta_in = &ic->streams[i]->metadata;
3065 break;
3066 } else if (ret < 0)
3067 exit_program(1);
3068 }
3069 if (!meta_in) {
3070 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3071 exit_program(1);
3072 }
3073 }
3074
3075 if (type_out == 's') {
3076 for (i = 0; i < oc->nb_streams; i++) {
3077 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3078 meta_out = &oc->streams[i]->metadata;
3079 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3080 } else if (ret < 0)
3081 exit_program(1);
3082 }
3083 } else
3084 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3085
6291d7e4
AK
3086 return 0;
3087}
3088
1b648c7c 3089static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
169f0647
AK
3090{
3091 const char *codec_string = encoder ? "encoder" : "decoder";
3092 AVCodec *codec;
3093
169f0647
AK
3094 codec = encoder ?
3095 avcodec_find_encoder_by_name(name) :
3096 avcodec_find_decoder_by_name(name);
7636c8c6 3097 if (!codec) {
f24facd3 3098 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
169f0647
AK
3099 exit_program(1);
3100 }
7636c8c6 3101 if (codec->type != type) {
f24facd3 3102 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
169f0647
AK
3103 exit_program(1);
3104 }
1b648c7c 3105 return codec;
169f0647
AK
3106}
3107
1b648c7c 3108static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
169f0647 3109{
169f0647 3110 char *codec_name = NULL;
169f0647 3111
35e6f8c1 3112 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
1b648c7c
AK
3113 if (codec_name) {
3114 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3115 st->codec->codec_id = codec->id;
3116 return codec;
3117 } else
3118 return avcodec_find_decoder(st->codec->codec_id);
169f0647 3119}
6291d7e4 3120
88867844
AK
3121/**
3122 * Add all the streams from the given input file to the global
3123 * list of input streams.
3124 */
35e6f8c1 3125static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
88867844 3126{
c88d5319 3127 int i;
88867844
AK
3128
3129 for (i = 0; i < ic->nb_streams; i++) {
3130 AVStream *st = ic->streams[i];
3131 AVCodecContext *dec = st->codec;
3132 InputStream *ist;
3133
88867844
AK
3134 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3135 ist = &input_streams[nb_input_streams - 1];
3136 ist->st = st;
3137 ist->file_index = nb_input_files;
3138 ist->discard = 1;
13f6917c 3139 st->discard = AVDISCARD_ALL;
88867844
AK
3140 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3141
059fb8c8
AK
3142 ist->ts_scale = 1.0;
3143 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
88867844 3144
1b648c7c 3145 ist->dec = choose_decoder(o, ic, st);
88867844
AK
3146
3147 switch (dec->codec_type) {
88867844 3148 case AVMEDIA_TYPE_VIDEO:
88867844
AK
3149 if (dec->lowres) {
3150 dec->flags |= CODEC_FLAG_EMU_EDGE;
3151 dec->height >>= dec->lowres;
3152 dec->width >>= dec->lowres;
3153 }
88867844 3154
88867844 3155 break;
13f6917c 3156 case AVMEDIA_TYPE_AUDIO:
88867844 3157 case AVMEDIA_TYPE_DATA:
88867844 3158 case AVMEDIA_TYPE_SUBTITLE:
88867844
AK
3159 case AVMEDIA_TYPE_ATTACHMENT:
3160 case AVMEDIA_TYPE_UNKNOWN:
3161 break;
3162 default:
3163 abort();
3164 }
3165 }
3166}
3167
a2c0b830
AK
3168static void assert_file_overwrite(const char *filename)
3169{
3170 if (!file_overwrite &&
3171 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3172 av_strstart(filename, "file:", NULL))) {
3173 if (avio_check(filename, 0) == 0) {
3174 if (!using_stdin) {
3175 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3176 fflush(stderr);
3177 if (!read_yesno()) {
3178 fprintf(stderr, "Not overwriting - exiting\n");
3179 exit_program(1);
3180 }
3181 }
3182 else {
3183 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3184 exit_program(1);
3185 }
3186 }
3187 }
3188}
3189
3190static void dump_attachment(AVStream *st, const char *filename)
3191{
3192 int ret;
3193 AVIOContext *out = NULL;
3194 AVDictionaryEntry *e;
3195
3196 if (!st->codec->extradata_size) {
3197 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3198 nb_input_files - 1, st->index);
3199 return;
3200 }
3201 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3202 filename = e->value;
3203 if (!*filename) {
3204 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3205 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3206 exit_program(1);
3207 }
3208
3209 assert_file_overwrite(filename);
3210
2abe947a 3211 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
a2c0b830
AK
3212 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3213 filename);
3214 exit_program(1);
3215 }
3216
3217 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3218 avio_flush(out);
3219 avio_close(out);
3220}
3221
575ec4e1 3222static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
6291d7e4
AK
3223{
3224 AVFormatContext *ic;
3225 AVInputFormat *file_iformat = NULL;
88867844 3226 int err, i, ret;
6291d7e4
AK
3227 int64_t timestamp;
3228 uint8_t buf[128];
3229 AVDictionary **opts;
3230 int orig_nb_streams; // number of streams before avformat_find_stream_info
3231
7041bb3b
AK
3232 if (o->format) {
3233 if (!(file_iformat = av_find_input_format(o->format))) {
e3245b26 3234 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
6291d7e4
AK
3235 exit_program(1);
3236 }
6291d7e4
AK
3237 }
3238
3239 if (!strcmp(filename, "-"))
3240 filename = "pipe:";
3241
3242 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3243 !strcmp(filename, "/dev/stdin");
3244
3245 /* get default parameters from command line */
3246 ic = avformat_alloc_context();
3247 if (!ic) {
3248 print_error(filename, AVERROR(ENOMEM));
3249 exit_program(1);
3250 }
e2469ccf
AK
3251 if (o->nb_audio_sample_rate) {
3252 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
6291d7e4
AK
3253 av_dict_set(&format_opts, "sample_rate", buf, 0);
3254 }
6a11686d
AK
3255 if (o->nb_audio_channels) {
3256 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
6291d7e4
AK
3257 av_dict_set(&format_opts, "channels", buf, 0);
3258 }
91ea4811
AK
3259 if (o->nb_frame_rates) {
3260 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
6291d7e4 3261 }
d4397b03
AK
3262 if (o->nb_frame_sizes) {
3263 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
6291d7e4 3264 }
b2254d83
AK
3265 if (o->nb_frame_pix_fmts)
3266 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
6291d7e4 3267
6291d7e4 3268 ic->flags |= AVFMT_FLAG_NONBLOCK;
2abe947a 3269 ic->interrupt_callback = int_cb;
6291d7e4
AK
3270
3271 /* open the input file with generic libav function */
3272 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3273 if (err < 0) {
3274 print_error(filename, err);
3275 exit_program(1);
3276 }
3277 assert_avoptions(format_opts);
3278
92f1940e
AK
3279 /* apply forced codec ids */
3280 for (i = 0; i < ic->nb_streams; i++)
1b648c7c 3281 choose_decoder(o, ic, ic->streams[i]);
92f1940e 3282
6291d7e4
AK
3283 /* Set AVCodecContext options for avformat_find_stream_info */
3284 opts = setup_find_stream_info_opts(ic, codec_opts);
3285 orig_nb_streams = ic->nb_streams;
3286
3287 /* If not enough info to get the stream parameters, we decode the
3288 first frames to get it. (used in mpeg case for example) */
3289 ret = avformat_find_stream_info(ic, opts);
e3245b26
AK
3290 if (ret < 0) {
3291 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
cd3716b9 3292 avformat_close_input(&ic);
6291d7e4
AK
3293 exit_program(1);
3294 }
3295
6b779ccc 3296 timestamp = o->start_time;
6291d7e4
AK
3297 /* add the stream start time */
3298 if (ic->start_time != AV_NOPTS_VALUE)
3299 timestamp += ic->start_time;
3300
3301 /* if seeking requested, we execute it */
6b779ccc 3302 if (o->start_time != 0) {
6291d7e4
AK
3303 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3304 if (ret < 0) {
e3245b26
AK
3305 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3306 filename, (double)timestamp / AV_TIME_BASE);
6291d7e4 3307 }
6291d7e4
AK
3308 }
3309
3310 /* update the current parameters so that they match the one of the input stream */
35e6f8c1 3311 add_input_streams(o, ic);
6291d7e4
AK
3312
3313 /* dump the file content */
e3245b26 3314 av_dump_format(ic, nb_input_files, filename, 0);
6291d7e4
AK
3315
3316 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3317 input_files[nb_input_files - 1].ctx = ic;
3318 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
6b779ccc 3319 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
ed5b1326 3320 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
dc3e76f3 3321 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
6291d7e4 3322
a2c0b830
AK
3323 for (i = 0; i < o->nb_dump_attachment; i++) {
3324 int j;
3325
3326 for (j = 0; j < ic->nb_streams; j++) {
3327 AVStream *st = ic->streams[j];
3328
3329 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3330 dump_attachment(st, o->dump_attachment[i].u.str);
3331 }
3332 }
3333
6291d7e4
AK
3334 for (i = 0; i < orig_nb_streams; i++)
3335 av_dict_free(&opts[i]);
3336 av_freep(&opts);
575ec4e1
AK
3337
3338 reset_options(o);
6291d7e4
AK
3339 return 0;
3340}
3341
f233cfed
AK
3342static void parse_forced_key_frames(char *kf, OutputStream *ost,
3343 AVCodecContext *avctx)
3344{
3345 char *p;
3346 int n = 1, i;
3347 int64_t t;
3348
3349 for (p = kf; *p; p++)
3350 if (*p == ',')
3351 n++;
3352 ost->forced_kf_count = n;
7636c8c6 3353 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
f233cfed
AK
3354 if (!ost->forced_kf_pts) {
3355 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3356 exit_program(1);
3357 }
3358 for (i = 0; i < n; i++) {
3359 p = i ? strchr(p, ',') + 1 : kf;
3360 t = parse_time_or_die("force_key_frames", p, 1);
3361 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3362 }
3363}
3364
3ec34462
AK
3365static uint8_t *get_line(AVIOContext *s)
3366{
3367 AVIOContext *line;
3368 uint8_t *buf;
3369 char c;
3370
3371 if (avio_open_dyn_buf(&line) < 0) {
3372 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3373 exit_program(1);
3374 }
3375
3376 while ((c = avio_r8(s)) && c != '\n')
3377 avio_w8(line, c);
3378 avio_w8(line, 0);
3379 avio_close_dyn_buf(line, &buf);
3380
3381 return buf;
3382}
3383
3384static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3385{
3386 int i, ret = 1;
3387 char filename[1000];
3388 const char *base[3] = { getenv("AVCONV_DATADIR"),
3389 getenv("HOME"),
3390 AVCONV_DATADIR,
3391 };
3392
3393 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3394 if (!base[i])
3395 continue;
3396 if (codec_name) {
3397 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3398 i != 1 ? "" : "/.avconv", codec_name, preset_name);
2abe947a 3399 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3400 }
3401 if (ret) {
3402 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3403 i != 1 ? "" : "/.avconv", preset_name);
2abe947a 3404 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3ec34462
AK
3405 }
3406 }
3407 return ret;
3408}
3409
1b648c7c
AK
3410static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3411{
3412 char *codec_name = NULL;
3413
3414 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3415 if (!codec_name) {
3416 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3417 NULL, ost->st->codec->codec_type);
3418 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3419 } else if (!strcmp(codec_name, "copy"))
3d813e4c 3420 ost->stream_copy = 1;
1b648c7c
AK
3421 else {
3422 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3423 ost->st->codec->codec_id = ost->enc->id;
3424 }
3425}
3426
35e6f8c1 3427static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
169f0647
AK
3428{
3429 OutputStream *ost;
84ad31ff 3430 AVStream *st = avformat_new_stream(oc, NULL);
3ec34462 3431 int idx = oc->nb_streams - 1, ret = 0;
013887eb 3432 char *bsf = NULL, *next, *codec_tag = NULL;
d821cbe2 3433 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
77d9c454 3434 double qscale = -1;
3ec34462
AK
3435 char *buf = NULL, *arg = NULL, *preset = NULL;
3436 AVIOContext *s = NULL;
169f0647
AK
3437
3438 if (!st) {
f24facd3 3439 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
169f0647
AK
3440 exit_program(1);
3441 }
3442
84ad31ff
AK
3443 if (oc->nb_streams - 1 < o->nb_streamid_map)
3444 st->id = o->streamid_map[oc->nb_streams - 1];
3445
4288e031
AK
3446 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3447 nb_output_streams + 1);
3448 ost = &output_streams[nb_output_streams - 1];
40fc2810 3449 ost->file_index = nb_output_files;
7636c8c6
AD
3450 ost->index = idx;
3451 ost->st = st;
169f0647 3452 st->codec->codec_type = type;
1b648c7c 3453 choose_encoder(o, oc, ost);
169f0647
AK
3454 if (ost->enc) {
3455 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3456 }
3457
3458 avcodec_get_context_defaults3(st->codec, ost->enc);
3459 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3460
3ec34462
AK
3461 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3462 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3463 do {
3464 buf = get_line(s);
3465 if (!buf[0] || buf[0] == '#') {
3466 av_free(buf);
3467 continue;
3468 }
3469 if (!(arg = strchr(buf, '='))) {
3470 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3471 exit_program(1);
3472 }
3473 *arg++ = 0;
3474 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3475 av_free(buf);
3476 } while (!s->eof_reached);
3477 avio_close(s);
3478 }
3479 if (ret) {
3480 av_log(NULL, AV_LOG_FATAL,
3481 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3482 preset, ost->file_index, ost->index);
3483 exit_program(1);
3484 }
3485
059fb8c8
AK
3486 ost->max_frames = INT64_MAX;
3487 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
96139b5e 3488
d821cbe2
AK
3489 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3490 while (bsf) {
3491 if (next = strchr(bsf, ','))
3492 *next++ = 0;
3493 if (!(bsfc = av_bitstream_filter_init(bsf))) {