Move av_reverse table to libavcodec
[libav.git] / avconv.c
CommitLineData
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1/*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "config.h"
23#include <ctype.h>
24#include <string.h>
25#include <math.h>
26#include <stdlib.h>
27#include <errno.h>
28#include <signal.h>
29#include <limits.h>
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30#include "libavformat/avformat.h"
31#include "libavdevice/avdevice.h"
32#include "libswscale/swscale.h"
bcb82fe1 33#include "libavresample/avresample.h"
6291d7e4 34#include "libavutil/opt.h"
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35#include "libavutil/audioconvert.h"
36#include "libavutil/parseutils.h"
37#include "libavutil/samplefmt.h"
38#include "libavutil/colorspace.h"
39#include "libavutil/fifo.h"
40#include "libavutil/intreadwrite.h"
41#include "libavutil/dict.h"
42#include "libavutil/mathematics.h"
43#include "libavutil/pixdesc.h"
44#include "libavutil/avstring.h"
45#include "libavutil/libm.h"
64dca32c 46#include "libavutil/imgutils.h"
896bb0d7 47#include "libavutil/time.h"
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48#include "libavformat/os_support.h"
49
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50# include "libavfilter/avfilter.h"
51# include "libavfilter/avfiltergraph.h"
04a14d4d 52# include "libavfilter/buffersrc.h"
ac712309 53# include "libavfilter/buffersink.h"
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54
55#if HAVE_SYS_RESOURCE_H
56#include <sys/types.h>
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57#include <sys/resource.h>
58#elif HAVE_GETPROCESSTIMES
59#include <windows.h>
60#endif
61#if HAVE_GETPROCESSMEMORYINFO
62#include <windows.h>
63#include <psapi.h>
64#endif
65
66#if HAVE_SYS_SELECT_H
67#include <sys/select.h>
68#endif
69
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70#if HAVE_PTHREADS
71#include <pthread.h>
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72#endif
73
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74#include <time.h>
75
f5e66827 76#include "avconv.h"
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77#include "cmdutils.h"
78
79#include "libavutil/avassert.h"
80
81const char program_name[] = "avconv";
82const int program_birth_year = 2000;
83
6291d7e4 84static FILE *vstats_file;
6291d7e4 85
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86static int64_t video_size = 0;
87static int64_t audio_size = 0;
88static int64_t extra_size = 0;
89static int nb_frames_dup = 0;
90static int nb_frames_drop = 0;
6291d7e4 91
6291d7e4 92
3460dd8a 93
47b812e9 94#if HAVE_PTHREADS
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95/* signal to input threads that they should exit; set by the main thread */
96static int transcoding_finished;
97#endif
98
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99#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
100
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101InputStream **input_streams = NULL;
102int nb_input_streams = 0;
103InputFile **input_files = NULL;
104int nb_input_files = 0;
6b779ccc 105
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106OutputStream **output_streams = NULL;
107int nb_output_streams = 0;
108OutputFile **output_files = NULL;
109int nb_output_files = 0;
6b779ccc 110
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111FilterGraph **filtergraphs;
112int nb_filtergraphs;
575ec4e1 113
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114static void term_exit(void)
115{
116 av_log(NULL, AV_LOG_QUIET, "");
117}
118
119static volatile int received_sigterm = 0;
120static volatile int received_nb_signals = 0;
121
122static void
123sigterm_handler(int sig)
124{
125 received_sigterm = sig;
126 received_nb_signals++;
127 term_exit();
128}
129
130static void term_init(void)
131{
7636c8c6 132 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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133 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
134#ifdef SIGXCPU
135 signal(SIGXCPU, sigterm_handler);
136#endif
137}
138
2abe947a 139static int decode_interrupt_cb(void *ctx)
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140{
141 return received_nb_signals > 1;
142}
143
f5e66827 144const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
2abe947a 145
8be5b0d6 146static void exit_program(void)
6291d7e4 147{
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148 int i, j;
149
150 for (i = 0; i < nb_filtergraphs; i++) {
151 avfilter_graph_free(&filtergraphs[i]->graph);
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152 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
153 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 154 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 155 }
560f7774 156 av_freep(&filtergraphs[i]->inputs);
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157 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
158 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 159 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 160 }
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161 av_freep(&filtergraphs[i]->outputs);
162 av_freep(&filtergraphs[i]);
163 }
164 av_freep(&filtergraphs);
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165
166 /* close files */
7636c8c6 167 for (i = 0; i < nb_output_files; i++) {
2e215267 168 AVFormatContext *s = output_files[i]->ctx;
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169 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
170 avio_close(s->pb);
171 avformat_free_context(s);
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172 av_dict_free(&output_files[i]->opts);
173 av_freep(&output_files[i]);
6291d7e4 174 }
1135a071 175 for (i = 0; i < nb_output_streams; i++) {
2e215267 176 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1135a071
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177 while (bsfc) {
178 AVBitStreamFilterContext *next = bsfc->next;
179 av_bitstream_filter_close(bsfc);
180 bsfc = next;
181 }
2e215267 182 output_streams[i]->bitstream_filters = NULL;
11d1ca4b 183 avcodec_free_frame(&output_streams[i]->filtered_frame);
ac646076 184
19ad5673 185 av_freep(&output_streams[i]->forced_keyframes);
2e215267 186 av_freep(&output_streams[i]->avfilter);
bbcedade 187 av_freep(&output_streams[i]->logfile_prefix);
2e215267 188 av_freep(&output_streams[i]);
1135a071 189 }
7636c8c6 190 for (i = 0; i < nb_input_files; i++) {
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191 avformat_close_input(&input_files[i]->ctx);
192 av_freep(&input_files[i]);
6291d7e4 193 }
9179f27c 194 for (i = 0; i < nb_input_streams; i++) {
11d1ca4b 195 avcodec_free_frame(&input_streams[i]->decoded_frame);
2e215267 196 av_dict_free(&input_streams[i]->opts);
3ffa2335 197 free_buffer_pool(&input_streams[i]->buffer_pool);
560f7774 198 av_freep(&input_streams[i]->filters);
2e215267 199 av_freep(&input_streams[i]);
9179f27c 200 }
6291d7e4 201
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202 if (vstats_file)
203 fclose(vstats_file);
204 av_free(vstats_filename);
205
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206 av_freep(&input_streams);
207 av_freep(&input_files);
4288e031 208 av_freep(&output_streams);
af70aa45 209 av_freep(&output_files);
6291d7e4 210
6291d7e4 211 uninit_opts();
6291d7e4 212
6291d7e4 213 avfilter_uninit();
776f2bb9 214 avformat_network_deinit();
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215
216 if (received_sigterm) {
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217 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
218 (int) received_sigterm);
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219 exit (255);
220 }
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221}
222
f5e66827 223void assert_avoptions(AVDictionary *m)
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224{
225 AVDictionaryEntry *t;
226 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 227 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
5e3f9979 228 exit(1);
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229 }
230}
231
232static void assert_codec_experimental(AVCodecContext *c, int encoder)
233{
234 const char *codec_string = encoder ? "encoder" : "decoder";
235 AVCodec *codec;
236 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
237 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
f24facd3 238 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
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239 "results.\nAdd '-strict experimental' if you want to use it.\n",
240 codec_string, c->codec->name);
241 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
242 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
f24facd3 243 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
6291d7e4 244 codec_string, codec->name);
5e3f9979 245 exit(1);
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246 }
247}
248
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249/**
250 * Update the requested input sample format based on the output sample format.
251 * This is currently only used to request float output from decoders which
252 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
253 * Ideally this will be removed in the future when decoders do not do format
254 * conversion and only output in their native format.
255 */
256static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
257 AVCodecContext *enc)
258{
259 /* if sample formats match or a decoder sample format has already been
260 requested, just return */
261 if (enc->sample_fmt == dec->sample_fmt ||
262 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
263 return;
264
265 /* if decoder supports more than one output format */
266 if (dec_codec && dec_codec->sample_fmts &&
267 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
268 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
269 const enum AVSampleFormat *p;
fd41cb43
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270 int min_dec = INT_MAX, min_inc = INT_MAX;
271 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
272 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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273
274 /* find a matching sample format in the encoder */
275 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
276 if (*p == enc->sample_fmt) {
277 dec->request_sample_fmt = *p;
278 return;
fd41cb43
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279 } else {
280 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
281 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
282 int fmt_diff = 32 * abs(dfmt - efmt);
283 if (av_sample_fmt_is_planar(*p) !=
284 av_sample_fmt_is_planar(enc->sample_fmt))
285 fmt_diff++;
286 if (dfmt == efmt) {
287 min_inc = fmt_diff;
288 inc_fmt = *p;
289 } else if (dfmt > efmt) {
290 if (fmt_diff < min_inc) {
291 min_inc = fmt_diff;
292 inc_fmt = *p;
293 }
294 } else {
295 if (fmt_diff < min_dec) {
296 min_dec = fmt_diff;
297 dec_fmt = *p;
298 }
299 }
300 }
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301 }
302
303 /* if none match, provide the one that matches quality closest */
fd41cb43 304 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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305 }
306}
307
f15f02c2 308static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 309{
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310 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
311 AVCodecContext *avctx = ost->st->codec;
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312 int ret;
313
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314 /*
315 * Audio encoders may split the packets -- #frames in != #packets out.
316 * But there is no reordering, so we can limit the number of output packets
317 * by simply dropping them here.
318 * Counting encoded video frames needs to be done separately because of
319 * reordering, see do_video_out()
320 */
321 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
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322 if (ost->frame_number >= ost->max_frames) {
323 av_free_packet(pkt);
99932847 324 return;
c9594fe0 325 }
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326 ost->frame_number++;
327 }
328
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329 while (bsfc) {
330 AVPacket new_pkt = *pkt;
331 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
332 &new_pkt.data, &new_pkt.size,
333 pkt->data, pkt->size,
334 pkt->flags & AV_PKT_FLAG_KEY);
335 if (a > 0) {
6291d7e4 336 av_free_packet(pkt);
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337 new_pkt.destruct = av_destruct_packet;
338 } else if (a < 0) {
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339 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
340 bsfc->filter->name, pkt->stream_index,
341 avctx->codec ? avctx->codec->name : "copy");
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342 print_error("", a);
343 if (exit_on_error)
5e3f9979 344 exit(1);
6291d7e4 345 }
7636c8c6 346 *pkt = new_pkt;
6291d7e4 347
7636c8c6 348 bsfc = bsfc->next;
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349 }
350
61a09968 351 pkt->stream_index = ost->index;
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352 ret = av_interleaved_write_frame(s, pkt);
353 if (ret < 0) {
6291d7e4 354 print_error("av_interleaved_write_frame()", ret);
5e3f9979 355 exit(1);
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356 }
357}
358
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359static int check_recording_time(OutputStream *ost)
360{
2e215267 361 OutputFile *of = output_files[ost->file_index];
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362
363 if (of->recording_time != INT64_MAX &&
364 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
365 AV_TIME_BASE_Q) >= 0) {
57d24225 366 ost->finished = 1;
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367 return 0;
368 }
369 return 1;
370}
371
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372static void do_audio_out(AVFormatContext *s, OutputStream *ost,
373 AVFrame *frame)
ee458cb1
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374{
375 AVCodecContext *enc = ost->st->codec;
ee458cb1 376 AVPacket pkt;
369cb092 377 int got_packet = 0;
ee458cb1
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378
379 av_init_packet(&pkt);
380 pkt.data = NULL;
381 pkt.size = 0;
382
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383 if (!check_recording_time(ost))
384 return;
1270e12e 385
369cb092 386 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 387 frame->pts = ost->sync_opts;
369cb092 388 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 389
ee458cb1
JR
390 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
391 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
5e3f9979 392 exit(1);
ee458cb1
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393 }
394
395 if (got_packet) {
ee458cb1
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396 if (pkt.pts != AV_NOPTS_VALUE)
397 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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398 if (pkt.dts != AV_NOPTS_VALUE)
399 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
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400 if (pkt.duration > 0)
401 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
402
403 write_frame(s, &pkt, ost);
404
405 audio_size += pkt.size;
406 }
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407}
408
409static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
410{
411 AVCodecContext *dec;
412 AVPicture *picture2;
413 AVPicture picture_tmp;
414 uint8_t *buf = 0;
415
416 dec = ist->st->codec;
417
418 /* deinterlace : must be done before any resize */
419 if (do_deinterlace) {
420 int size;
421
422 /* create temporary picture */
423 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 424 buf = av_malloc(size);
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425 if (!buf)
426 return;
427
428 picture2 = &picture_tmp;
429 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
430
7636c8c6 431 if (avpicture_deinterlace(picture2, picture,
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432 dec->pix_fmt, dec->width, dec->height) < 0) {
433 /* if error, do not deinterlace */
e3245b26 434 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
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435 av_free(buf);
436 buf = NULL;
437 picture2 = picture;
438 }
439 } else {
440 picture2 = picture;
441 }
442
443 if (picture != picture2)
444 *picture = *picture2;
445 *bufp = buf;
446}
447
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448static void do_subtitle_out(AVFormatContext *s,
449 OutputStream *ost,
450 InputStream *ist,
451 AVSubtitle *sub,
452 int64_t pts)
453{
454 static uint8_t *subtitle_out = NULL;
455 int subtitle_out_max_size = 1024 * 1024;
456 int subtitle_out_size, nb, i;
457 AVCodecContext *enc;
458 AVPacket pkt;
459
460 if (pts == AV_NOPTS_VALUE) {
e3245b26 461 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 462 if (exit_on_error)
5e3f9979 463 exit(1);
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464 return;
465 }
466
467 enc = ost->st->codec;
468
469 if (!subtitle_out) {
470 subtitle_out = av_malloc(subtitle_out_max_size);
471 }
472
473 /* Note: DVB subtitle need one packet to draw them and one other
474 packet to clear them */
475 /* XXX: signal it in the codec context ? */
36ef5369 476 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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477 nb = 2;
478 else
479 nb = 1;
480
7636c8c6 481 for (i = 0; i < nb; i++) {
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482 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
483 if (!check_recording_time(ost))
484 return;
485
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486 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
487 // start_display_time is required to be 0
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488 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
489 sub->end_display_time -= sub->start_display_time;
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490 sub->start_display_time = 0;
491 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
492 subtitle_out_max_size, sub);
493 if (subtitle_out_size < 0) {
e3245b26 494 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
5e3f9979 495 exit(1);
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496 }
497
498 av_init_packet(&pkt);
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499 pkt.data = subtitle_out;
500 pkt.size = subtitle_out_size;
7636c8c6 501 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 502 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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503 /* XXX: the pts correction is handled here. Maybe handling
504 it in the codec would be better */
505 if (i == 0)
506 pkt.pts += 90 * sub->start_display_time;
507 else
508 pkt.pts += 90 * sub->end_display_time;
509 }
f15f02c2 510 write_frame(s, &pkt, ost);
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511 }
512}
513
87ef060c
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514static void do_video_out(AVFormatContext *s,
515 OutputStream *ost,
87ef060c 516 AVFrame *in_picture,
fb722a90 517 int *frame_size)
87ef060c 518{
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519 int ret, format_video_sync;
520 AVPacket pkt;
521 AVCodecContext *enc = ost->st->codec;
87ef060c
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522
523 *frame_size = 0;
524
553735f5 525 format_video_sync = video_sync_method;
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526 if (format_video_sync == VSYNC_AUTO)
527 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
528 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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529 if (format_video_sync != VSYNC_PASSTHROUGH &&
530 ost->frame_number &&
531 in_picture->pts != AV_NOPTS_VALUE &&
532 in_picture->pts < ost->sync_opts) {
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533 nb_frames_drop++;
534 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 535 return;
d43040e2 536 }
87ef060c 537
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538 if (in_picture->pts == AV_NOPTS_VALUE)
539 in_picture->pts = ost->sync_opts;
540 ost->sync_opts = in_picture->pts;
541
542
1270e12e 543 if (!ost->frame_number)
74b961db 544 ost->first_pts = in_picture->pts;
1270e12e 545
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546 av_init_packet(&pkt);
547 pkt.data = NULL;
548 pkt.size = 0;
6291d7e4 549
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550 if (!check_recording_time(ost) ||
551 ost->frame_number >= ost->max_frames)
552 return;
1270e12e 553
39885a4b 554 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 555 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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556 /* raw pictures are written as AVPicture structure to
557 avoid any copies. We support temporarily the older
558 method. */
559 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
560 enc->coded_frame->top_field_first = in_picture->top_field_first;
561 pkt.data = (uint8_t *)in_picture;
562 pkt.size = sizeof(AVPicture);
563 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
564 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 565
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566 write_frame(s, &pkt, ost);
567 } else {
568 int got_packet;
569 AVFrame big_picture;
570
571 big_picture = *in_picture;
572 /* better than nothing: use input picture interlaced
573 settings */
574 big_picture.interlaced_frame = in_picture->interlaced_frame;
575 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
576 if (ost->top_field_first == -1)
577 big_picture.top_field_first = in_picture->top_field_first;
578 else
579 big_picture.top_field_first = !!ost->top_field_first;
580 }
6291d7e4 581
fb722a90 582 big_picture.quality = ost->st->codec->global_quality;
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583 if (!enc->me_threshold)
584 big_picture.pict_type = 0;
585 if (ost->forced_kf_index < ost->forced_kf_count &&
586 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
587 big_picture.pict_type = AV_PICTURE_TYPE_I;
588 ost->forced_kf_index++;
589 }
590 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
591 if (ret < 0) {
592 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
5e3f9979 593 exit(1);
39885a4b 594 }
6291d7e4 595
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596 if (got_packet) {
597 if (pkt.pts != AV_NOPTS_VALUE)
598 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
599 if (pkt.dts != AV_NOPTS_VALUE)
600 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 601
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602 write_frame(s, &pkt, ost);
603 *frame_size = pkt.size;
604 video_size += pkt.size;
324fbadf 605
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606 /* if two pass, output log */
607 if (ost->logfile && enc->stats_out) {
608 fprintf(ost->logfile, "%s", enc->stats_out);
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609 }
610 }
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611 }
612 ost->sync_opts++;
613 /*
614 * For video, number of frames in == number of packets out.
615 * But there may be reordering, so we can't throw away frames on encoder
616 * flush, we need to limit them here, before they go into encoder.
617 */
618 ost->frame_number++;
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619}
620
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621static double psnr(double d)
622{
623 return -10.0 * log(d) / log(10.0);
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624}
625
626static void do_video_stats(AVFormatContext *os, OutputStream *ost,
627 int frame_size)
628{
629 AVCodecContext *enc;
630 int frame_number;
631 double ti1, bitrate, avg_bitrate;
632
633 /* this is executed just the first time do_video_stats is called */
634 if (!vstats_file) {
635 vstats_file = fopen(vstats_filename, "w");
636 if (!vstats_file) {
637 perror("fopen");
5e3f9979 638 exit(1);
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639 }
640 }
641
642 enc = ost->st->codec;
643 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
644 frame_number = ost->frame_number;
7636c8c6 645 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 646 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 647 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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648
649 fprintf(vstats_file,"f_size= %6d ", frame_size);
650 /* compute pts value */
651 ti1 = ost->sync_opts * av_q2d(enc->time_base);
652 if (ti1 < 0.01)
653 ti1 = 0.01;
654
7636c8c6 655 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
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656 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
657 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 658 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
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659 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
660 }
661}
662
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663/**
664 * Read one frame for lavfi output for ost and encode it.
665 */
666static int poll_filter(OutputStream *ost)
560f7774 667{
a4f50110 668 OutputFile *of = output_files[ost->file_index];
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669 AVFilterBufferRef *picref;
670 AVFrame *filtered_frame = NULL;
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671 int frame_size, ret;
672
673 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
674 return AVERROR(ENOMEM);
675 } else
676 avcodec_get_frame_defaults(ost->filtered_frame);
677 filtered_frame = ost->filtered_frame;
678
679 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
680 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
681 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
682 ost->st->codec->frame_size);
683 else
684 ret = av_buffersink_read(ost->filter->filter, &picref);
369cb092 685
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686 if (ret < 0)
687 return ret;
560f7774 688
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689 avfilter_copy_buf_props(filtered_frame, picref);
690 if (picref->pts != AV_NOPTS_VALUE) {
691 filtered_frame->pts = av_rescale_q(picref->pts,
692 ost->filter->filter->inputs[0]->time_base,
693 ost->st->codec->time_base) -
694 av_rescale_q(of->start_time,
695 AV_TIME_BASE_Q,
696 ost->st->codec->time_base);
560f7774 697
a4f50110 698 if (of->start_time && filtered_frame->pts < 0) {
560f7774 699 avfilter_unref_buffer(picref);
a4f50110 700 return 0;
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701 }
702 }
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703
704 switch (ost->filter->filter->inputs[0]->type) {
705 case AVMEDIA_TYPE_VIDEO:
706 if (!ost->frame_aspect_ratio)
707 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
708
fb722a90 709 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
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710 if (vstats_filename && frame_size)
711 do_video_stats(of->ctx, ost, frame_size);
712 break;
713 case AVMEDIA_TYPE_AUDIO:
714 do_audio_out(of->ctx, ost, filtered_frame);
715 break;
716 default:
717 // TODO support subtitle filters
718 av_assert0(0);
719 }
720
721 avfilter_unref_buffer(picref);
722
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723 return 0;
724}
725
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726/**
727 * Read as many frames from possible from lavfi and encode them.
728 *
729 * Always read from the active stream with the lowest timestamp. If no frames
730 * are available for it then return EAGAIN and wait for more input. This way we
731 * can use lavfi sources that generate unlimited amount of frames without memory
732 * usage exploding.
733 */
734static int poll_filters(void)
735{
3c0df905 736 int i, j, ret = 0;
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737
738 while (ret >= 0 && !received_sigterm) {
739 OutputStream *ost = NULL;
740 int64_t min_pts = INT64_MAX;
741
742 /* choose output stream with the lowest timestamp */
743 for (i = 0; i < nb_output_streams; i++) {
744 int64_t pts = output_streams[i]->sync_opts;
745
57d24225 746 if (!output_streams[i]->filter || output_streams[i]->finished)
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747 continue;
748
749 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
750 AV_TIME_BASE_Q);
751 if (pts < min_pts) {
752 min_pts = pts;
753 ost = output_streams[i];
754 }
755 }
756
757 if (!ost)
758 break;
759
760 ret = poll_filter(ost);
761
762 if (ret == AVERROR_EOF) {
3c0df905
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763 OutputFile *of = output_files[ost->file_index];
764
57d24225 765 ost->finished = 1;
a4f50110 766
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767 if (of->shortest) {
768 for (j = 0; j < of->ctx->nb_streams; j++)
769 output_streams[of->ost_index + j]->finished = 1;
770 }
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771
772 ret = 0;
773 } else if (ret == AVERROR(EAGAIN))
774 return 0;
775 }
776
777 return ret;
778}
779
ea9367e9 780static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
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781{
782 char buf[1024];
783 OutputStream *ost;
784 AVFormatContext *oc;
785 int64_t total_size;
786 AVCodecContext *enc;
787 int frame_number, vid, i;
788 double bitrate, ti1, pts;
789 static int64_t last_time = -1;
790 static int qp_histogram[52];
791
3460dd8a
AK
792 if (!print_stats && !is_last_report)
793 return;
794
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795 if (!is_last_report) {
796 int64_t cur_time;
797 /* display the report every 0.5 seconds */
798 cur_time = av_gettime();
799 if (last_time == -1) {
800 last_time = cur_time;
801 return;
802 }
803 if ((cur_time - last_time) < 500000)
804 return;
805 last_time = cur_time;
806 }
807
808
2e215267 809 oc = output_files[0]->ctx;
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810
811 total_size = avio_size(oc->pb);
7636c8c6
AD
812 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
813 total_size = avio_tell(oc->pb);
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814
815 buf[0] = '\0';
816 ti1 = 1e10;
817 vid = 0;
ea9367e9 818 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 819 float q = -1;
2e215267 820 ost = output_streams[i];
6291d7e4 821 enc = ost->st->codec;
3d813e4c 822 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 823 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
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824 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
825 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
826 }
827 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 828 float t = (av_gettime() - timer_start) / 1000000.0;
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829
830 frame_number = ost->frame_number;
831 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
832 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
833 if (is_last_report)
6291d7e4 834 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 835 if (qp_hist) {
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AK
836 int j;
837 int qp = lrintf(q);
7636c8c6 838 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 839 qp_histogram[qp]++;
7636c8c6 840 for (j = 0; j < 32; j++)
d752509b 841 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 842 }
7636c8c6 843 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 844 int j;
7636c8c6
AD
845 double error, error_sum = 0;
846 double scale, scale_sum = 0;
847 char type[3] = { 'Y','U','V' };
6291d7e4 848 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
849 for (j = 0; j < 3; j++) {
850 if (is_last_report) {
851 error = enc->error[j];
852 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
853 } else {
854 error = enc->coded_frame->error[j];
855 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 856 }
7636c8c6
AD
857 if (j)
858 scale /= 4;
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859 error_sum += error;
860 scale_sum += scale;
7636c8c6 861 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 862 }
7636c8c6 863 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
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864 }
865 vid = 1;
866 }
867 /* compute min output value */
868 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
869 if ((pts < ti1) && (pts > 0))
870 ti1 = pts;
871 }
872 if (ti1 < 0.01)
873 ti1 = 0.01;
874
e3245b26 875 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 876
e3245b26 877 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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878 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
879 (double)total_size / 1024, ti1, bitrate);
880
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881 if (nb_frames_dup || nb_frames_drop)
882 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
883 nb_frames_dup, nb_frames_drop);
6291d7e4 884
f5646a32 885 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 886
e3245b26 887 fflush(stderr);
6291d7e4 888
e3245b26 889 if (is_last_report) {
6291d7e4 890 int64_t raw= audio_size + video_size + extra_size;
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891 av_log(NULL, AV_LOG_INFO, "\n");
892 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
893 video_size / 1024.0,
894 audio_size / 1024.0,
895 extra_size / 1024.0,
896 100.0 * (total_size - raw) / raw
6291d7e4
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897 );
898 }
899}
900
ea9367e9 901static void flush_encoders(void)
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902{
903 int i, ret;
904
ea9367e9 905 for (i = 0; i < nb_output_streams; i++) {
2e215267 906 OutputStream *ost = output_streams[i];
6f1c66d5 907 AVCodecContext *enc = ost->st->codec;
2e215267 908 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 909 int stop_encoding = 0;
6f1c66d5 910
b62b5cb6 911 if (!ost->encoding_needed)
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912 continue;
913
7636c8c6 914 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 915 continue;
36ef5369 916 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
6f1c66d5
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917 continue;
918
7636c8c6 919 for (;;) {
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920 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
921 const char *desc;
922 int64_t *size;
6f1c66d5
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923
924 switch (ost->st->codec->codec_type) {
925 case AVMEDIA_TYPE_AUDIO:
369cb092
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926 encode = avcodec_encode_audio2;
927 desc = "Audio";
928 size = &audio_size;
6f1c66d5
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929 break;
930 case AVMEDIA_TYPE_VIDEO:
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931 encode = avcodec_encode_video2;
932 desc = "Video";
933 size = &video_size;
934 break;
935 default:
936 stop_encoding = 1;
937 }
938
939 if (encode) {
940 AVPacket pkt;
941 int got_packet;
942 av_init_packet(&pkt);
943 pkt.data = NULL;
944 pkt.size = 0;
945
946 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 947 if (ret < 0) {
369cb092 948 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
5e3f9979 949 exit(1);
6f1c66d5 950 }
369cb092 951 *size += ret;
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952 if (ost->logfile && enc->stats_out) {
953 fprintf(ost->logfile, "%s", enc->stats_out);
954 }
8e37038a 955 if (!got_packet) {
ee458cb1
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956 stop_encoding = 1;
957 break;
958 }
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959 if (pkt.pts != AV_NOPTS_VALUE)
960 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
961 if (pkt.dts != AV_NOPTS_VALUE)
962 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 963 write_frame(os, &pkt, ost);
4a4ce2e7 964 }
369cb092 965
ee458cb1 966 if (stop_encoding)
6f1c66d5 967 break;
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968 }
969 }
970}
971
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972/*
973 * Check whether a packet from ist should be written into ost at this time
974 */
975static int check_output_constraints(InputStream *ist, OutputStream *ost)
976{
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977 OutputFile *of = output_files[ost->file_index];
978 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
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979
980 if (ost->source_index != ist_index)
981 return 0;
982
23576b3f 983 if (of->start_time && ist->last_dts < of->start_time)
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984 return 0;
985
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986 return 1;
987}
988
989static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
990{
2e215267 991 OutputFile *of = output_files[ost->file_index];
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992 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
993 AVPacket opkt;
994
995 av_init_packet(&opkt);
996
997 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
998 !ost->copy_initial_nonkeyframes)
999 return;
1000
1270e12e 1001 if (of->recording_time != INT64_MAX &&
23576b3f 1002 ist->last_dts >= of->recording_time + of->start_time) {
57d24225 1003 ost->finished = 1;
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1004 return;
1005 }
1006
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1007 /* force the input stream PTS */
1008 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1009 audio_size += pkt->size;
1010 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1011 video_size += pkt->size;
1012 ost->sync_opts++;
1013 }
1014
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1015 if (pkt->pts != AV_NOPTS_VALUE)
1016 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1017 else
1018 opkt.pts = AV_NOPTS_VALUE;
1019
1020 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1021 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
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1022 else
1023 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1024 opkt.dts -= ost_tb_start_time;
1025
1026 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1027 opkt.flags = pkt->flags;
1028
7636c8c6 1029 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
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1030 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1031 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1032 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1033 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
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1034 ) {
1035 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1036 opkt.destruct = av_destruct_packet;
1037 } else {
1038 opkt.data = pkt->data;
1039 opkt.size = pkt->size;
1040 }
1041
f15f02c2 1042 write_frame(of->ctx, &opkt, ost);
7204ec1a 1043 ost->st->codec->frame_number++;
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1044 av_free_packet(&opkt);
1045}
1046
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1047static void rate_emu_sleep(InputStream *ist)
1048{
2e215267 1049 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1050 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
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1051 int64_t now = av_gettime() - ist->start;
1052 if (pts > now)
896bb0d7 1053 av_usleep(pts - now);
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1054 }
1055}
1056
f5e66827 1057int guess_input_channel_layout(InputStream *ist)
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1058{
1059 AVCodecContext *dec = ist->st->codec;
1060
1061 if (!dec->channel_layout) {
1062 char layout_name[256];
1063
1064 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1065 if (!dec->channel_layout)
1066 return 0;
1067 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1068 dec->channels, dec->channel_layout);
1069 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1070 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1071 }
1072 return 1;
1073}
1074
0629f612 1075static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1076{
d1241ff3
JR
1077 AVFrame *decoded_frame;
1078 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1079 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 1080 int i, ret, resample_changed;
ded28ba3 1081
9179f27c 1082 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1083 return AVERROR(ENOMEM);
9179f27c
JR
1084 else
1085 avcodec_get_frame_defaults(ist->decoded_frame);
1086 decoded_frame = ist->decoded_frame;
ded28ba3 1087
d1241ff3 1088 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1089 if (!*got_output || ret < 0) {
1090 if (!pkt->size) {
369cb092
AK
1091 for (i = 0; i < ist->nb_filters; i++)
1092 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
f154ef1a 1093 }
af8ad892 1094 return ret;
ded28ba3
AK
1095 }
1096
d1241ff3
JR
1097 /* if the decoder provides a pts, use it instead of the last packet pts.
1098 the decoder could be delaying output by a packet or more. */
1099 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1100 ist->next_dts = decoded_frame->pts;
369cb092
AK
1101 else if (pkt->pts != AV_NOPTS_VALUE) {
1102 decoded_frame->pts = pkt->pts;
1103 pkt->pts = AV_NOPTS_VALUE;
1104 }
ded28ba3
AK
1105
1106 // preprocess audio (volume)
1107 if (audio_volume != 256) {
d1241ff3
JR
1108 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1109 void *samples = decoded_frame->data[0];
1110 switch (avctx->sample_fmt) {
ded28ba3
AK
1111 case AV_SAMPLE_FMT_U8:
1112 {
1113 uint8_t *volp = samples;
1114 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1115 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1116 *volp++ = av_clip_uint8(v);
1117 }
1118 break;
1119 }
1120 case AV_SAMPLE_FMT_S16:
1121 {
1122 int16_t *volp = samples;
1123 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1124 int v = ((*volp) * audio_volume + 128) >> 8;
1125 *volp++ = av_clip_int16(v);
1126 }
1127 break;
1128 }
1129 case AV_SAMPLE_FMT_S32:
1130 {
1131 int32_t *volp = samples;
1132 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1133 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1134 *volp++ = av_clipl_int32(v);
1135 }
1136 break;
1137 }
1138 case AV_SAMPLE_FMT_FLT:
1139 {
1140 float *volp = samples;
1141 float scale = audio_volume / 256.f;
1142 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1143 *volp++ *= scale;
1144 }
1145 break;
1146 }
1147 case AV_SAMPLE_FMT_DBL:
1148 {
1149 double *volp = samples;
1150 double scale = audio_volume / 256.;
1151 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1152 *volp++ *= scale;
1153 }
1154 break;
1155 }
1156 default:
1157 av_log(NULL, AV_LOG_FATAL,
1158 "Audio volume adjustment on sample format %s is not supported.\n",
1159 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
5e3f9979 1160 exit(1);
ded28ba3
AK
1161 }
1162 }
1163
1164 rate_emu_sleep(ist);
1165
369cb092
AK
1166 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1167 ist->resample_channels != avctx->channels ||
1168 ist->resample_channel_layout != decoded_frame->channel_layout ||
1169 ist->resample_sample_rate != decoded_frame->sample_rate;
1170 if (resample_changed) {
1171 char layout1[64], layout2[64];
ded28ba3 1172
369cb092
AK
1173 if (!guess_input_channel_layout(ist)) {
1174 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1175 "layout for Input Stream #%d.%d\n", ist->file_index,
1176 ist->st->index);
5e3f9979 1177 exit(1);
369cb092
AK
1178 }
1179 decoded_frame->channel_layout = avctx->channel_layout;
1180
1181 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1182 ist->resample_channel_layout);
1183 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1184 decoded_frame->channel_layout);
1185
1186 av_log(NULL, AV_LOG_INFO,
1187 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
1188 ist->file_index, ist->st->index,
1189 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1190 ist->resample_channels, layout1,
1191 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1192 avctx->channels, layout2);
1193
1194 ist->resample_sample_fmt = decoded_frame->format;
1195 ist->resample_sample_rate = decoded_frame->sample_rate;
1196 ist->resample_channel_layout = decoded_frame->channel_layout;
1197 ist->resample_channels = avctx->channels;
1198
1199 for (i = 0; i < nb_filtergraphs; i++)
1200 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1201 configure_filtergraph(filtergraphs[i]) < 0) {
1202 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
5e3f9979 1203 exit(1);
369cb092 1204 }
ded28ba3 1205 }
110d2af2 1206
715129cd
MS
1207 if (decoded_frame->pts != AV_NOPTS_VALUE)
1208 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1209 ist->st->time_base,
1210 (AVRational){1, ist->st->codec->sample_rate});
369cb092
AK
1211 for (i = 0; i < ist->nb_filters; i++)
1212 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
1213
af8ad892 1214 return ret;
ded28ba3
AK
1215}
1216
0629f612 1217static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1218{
560f7774 1219 AVFrame *decoded_frame;
45d4b66f 1220 void *buffer_to_free = NULL;
e77c8662 1221 int i, ret = 0, resample_changed;
45d4b66f 1222
9179f27c 1223 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 1224 return AVERROR(ENOMEM);
9179f27c
JR
1225 else
1226 avcodec_get_frame_defaults(ist->decoded_frame);
1227 decoded_frame = ist->decoded_frame;
45d4b66f
AK
1228
1229 ret = avcodec_decode_video2(ist->st->codec,
1230 decoded_frame, got_output, pkt);
f154ef1a
AK
1231 if (!*got_output || ret < 0) {
1232 if (!pkt->size) {
89605e4a
AK
1233 for (i = 0; i < ist->nb_filters; i++)
1234 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
f154ef1a 1235 }
af8ad892 1236 return ret;
45d4b66f 1237 }
f154ef1a 1238
b34856a1
AK
1239 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1240 decoded_frame->pkt_dts);
45d4b66f
AK
1241 pkt->size = 0;
1242 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1243
1244 rate_emu_sleep(ist);
1245
695ec04e
AK
1246 if (ist->st->sample_aspect_ratio.num)
1247 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1248
e77c8662
AK
1249 resample_changed = ist->resample_width != decoded_frame->width ||
1250 ist->resample_height != decoded_frame->height ||
1251 ist->resample_pix_fmt != decoded_frame->format;
1252 if (resample_changed) {
1253 av_log(NULL, AV_LOG_INFO,
1254 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1255 ist->file_index, ist->st->index,
1256 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1257 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1258
2f34021d
JG
1259 ret = poll_filters();
1260 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1261 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1262
e77c8662
AK
1263 ist->resample_width = decoded_frame->width;
1264 ist->resample_height = decoded_frame->height;
1265 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1266
3b266da3
AK
1267 for (i = 0; i < nb_filtergraphs; i++)
1268 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1269 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1270 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
5e3f9979 1271 exit(1);
3b266da3
AK
1272 }
1273 }
ac646076 1274
3b266da3 1275 for (i = 0; i < ist->nb_filters; i++) {
04a14d4d
AK
1276 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1277 FrameBuffer *buf = decoded_frame->opaque;
1278 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1279 decoded_frame->data, decoded_frame->linesize,
1280 AV_PERM_READ | AV_PERM_PRESERVE,
1281 ist->st->codec->width, ist->st->codec->height,
1282 ist->st->codec->pix_fmt);
1283
1284 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
1285 fb->buf->priv = buf;
1286 fb->buf->free = filter_release_buffer;
1287
1288 buf->refcount++;
560f7774 1289 av_buffersrc_buffer(ist->filters[i]->filter, fb);
04a14d4d 1290 } else
720c6b78 1291 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
45d4b66f
AK
1292 }
1293
45d4b66f 1294 av_free(buffer_to_free);
45d4b66f
AK
1295 return ret;
1296}
1297
9595234c
AK
1298static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1299{
1300 AVSubtitle subtitle;
1301 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1302 &subtitle, got_output, pkt);
1303 if (ret < 0)
1304 return ret;
1305 if (!*got_output)
af8ad892 1306 return ret;
9595234c
AK
1307
1308 rate_emu_sleep(ist);
1309
1310 for (i = 0; i < nb_output_streams; i++) {
2e215267 1311 OutputStream *ost = output_streams[i];
9595234c
AK
1312
1313 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1314 continue;
1315
2e215267 1316 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1317 }
1318
1319 avsubtitle_free(&subtitle);
af8ad892 1320 return ret;
9595234c
AK
1321}
1322
6291d7e4 1323/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1324static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1325{
ffa0674e 1326 int i;
6291d7e4 1327 int got_output;
6291d7e4 1328 AVPacket avpkt;
6291d7e4 1329
3101bb66 1330 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1331 ist->next_dts = ist->last_dts;
6291d7e4
AK
1332
1333 if (pkt == NULL) {
1334 /* EOF handling */
1335 av_init_packet(&avpkt);
1336 avpkt.data = NULL;
1337 avpkt.size = 0;
1338 goto handle_eof;
1339 } else {
1340 avpkt = *pkt;
1341 }
1342
7636c8c6 1343 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1344 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1345
7636c8c6 1346 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1347 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1348 int ret = 0;
6291d7e4 1349 handle_eof:
6291d7e4 1350
23576b3f 1351 ist->last_dts = ist->next_dts;
8b0268a8
AK
1352
1353 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
1354 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1355 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1356 ist->showed_multi_packet_warning = 1;
1357 }
6291d7e4 1358
7636c8c6 1359 switch (ist->st->codec->codec_type) {
82963f8f 1360 case AVMEDIA_TYPE_AUDIO:
0629f612 1361 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1362 break;
1363 case AVMEDIA_TYPE_VIDEO:
0629f612 1364 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1365 if (avpkt.duration)
1366 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1367 else if (ist->st->avg_frame_rate.num)
82494835 1368 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1369 AV_TIME_BASE_Q);
b34856a1
AK
1370 else if (ist->st->codec->time_base.num != 0) {
1371 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1372 ist->st->codec->ticks_per_frame;
1373 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1374 }
82963f8f
AK
1375 break;
1376 case AVMEDIA_TYPE_SUBTITLE:
1377 ret = transcode_subtitles(ist, &avpkt, &got_output);
1378 break;
78162b4e
AK
1379 default:
1380 return -1;
1381 }
6291d7e4 1382
d3c1d37a
AK
1383 if (ret < 0)
1384 return ret;
aa38cff2
JG
1385 // touch data and size only if not EOF
1386 if (pkt) {
1387 avpkt.data += ret;
1388 avpkt.size -= ret;
1389 }
82963f8f 1390 if (!got_output) {
af8ad892 1391 continue;
82963f8f 1392 }
6291d7e4 1393 }
6291d7e4 1394
7204ec1a 1395 /* handle stream copy */
2a651b71
AK
1396 if (!ist->decoding_needed) {
1397 rate_emu_sleep(ist);
23576b3f 1398 ist->last_dts = ist->next_dts;
2a651b71
AK
1399 switch (ist->st->codec->codec_type) {
1400 case AVMEDIA_TYPE_AUDIO:
3101bb66 1401 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
1402 ist->st->codec->sample_rate;
1403 break;
1404 case AVMEDIA_TYPE_VIDEO:
1405 if (ist->st->codec->time_base.num != 0) {
7636c8c6 1406 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 1407 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
1408 ist->st->codec->time_base.num * ticks) /
1409 ist->st->codec->time_base.den;
1410 }
1411 break;
1412 }
1413 }
ea9367e9 1414 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1415 OutputStream *ost = output_streams[i];
7204ec1a
AK
1416
1417 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1418 continue;
1419
1420 do_streamcopy(ist, ost, pkt);
1421 }
1422
6291d7e4
AK
1423 return 0;
1424}
1425
ea9367e9 1426static void print_sdp(void)
6291d7e4
AK
1427{
1428 char sdp[2048];
af70aa45 1429 int i;
ea9367e9 1430 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1431
1432 if (!avc)
5e3f9979 1433 exit(1);
ea9367e9 1434 for (i = 0; i < nb_output_files; i++)
2e215267 1435 avc[i] = output_files[i]->ctx;
6291d7e4 1436
ea9367e9 1437 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1438 printf("SDP:\n%s\n", sdp);
1439 fflush(stdout);
af70aa45 1440 av_freep(&avc);
6291d7e4
AK
1441}
1442
ea9367e9 1443static int init_input_stream(int ist_index, char *error, int error_len)
630902a1
AK
1444{
1445 int i;
2e215267 1446 InputStream *ist = input_streams[ist_index];
630902a1
AK
1447 if (ist->decoding_needed) {
1448 AVCodec *codec = ist->dec;
630902a1 1449 if (!codec) {
9a414d89 1450 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
1451 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1452 return AVERROR(EINVAL);
1453 }
1454
1455 /* update requested sample format for the decoder based on the
1456 corresponding encoder sample format */
1457 for (i = 0; i < nb_output_streams; i++) {
2e215267 1458 OutputStream *ost = output_streams[i];
630902a1
AK
1459 if (ost->source_index == ist_index) {
1460 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1461 break;
1462 }
1463 }
1464
64dca32c
AK
1465 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
1466 ist->st->codec->get_buffer = codec_get_buffer;
1467 ist->st->codec->release_buffer = codec_release_buffer;
3ffa2335 1468 ist->st->codec->opaque = &ist->buffer_pool;
64dca32c
AK
1469 }
1470
2473a45c
JG
1471 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1472 av_dict_set(&ist->opts, "threads", "auto", 0);
630902a1 1473 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
9a414d89 1474 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1
AK
1475 ist->file_index, ist->st->index);
1476 return AVERROR(EINVAL);
1477 }
1478 assert_codec_experimental(ist->st->codec, 0);
1479 assert_avoptions(ist->opts);
1480 }
1481
23576b3f 1482 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 1483 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
1484 init_pts_correction(&ist->pts_ctx);
1485 ist->is_start = 1;
1486
1487 return 0;
1488}
1489
3b266da3
AK
1490static InputStream *get_input_stream(OutputStream *ost)
1491{
1492 if (ost->source_index >= 0)
1493 return input_streams[ost->source_index];
1494
1495 if (ost->filter) {
1496 FilterGraph *fg = ost->filter->graph;
1497 int i;
1498
1499 for (i = 0; i < fg->nb_inputs; i++)
1500 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1501 return fg->inputs[i]->ist;
1502 }
1503
1504 return NULL;
1505}
1506
19ad5673
AK
1507static void parse_forced_key_frames(char *kf, OutputStream *ost,
1508 AVCodecContext *avctx)
1509{
1510 char *p;
1511 int n = 1, i;
1512 int64_t t;
1513
1514 for (p = kf; *p; p++)
1515 if (*p == ',')
1516 n++;
1517 ost->forced_kf_count = n;
1518 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1519 if (!ost->forced_kf_pts) {
1520 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
5e3f9979 1521 exit(1);
19ad5673 1522 }
4c679750
RD
1523
1524 p = kf;
19ad5673 1525 for (i = 0; i < n; i++) {
4c679750
RD
1526 char *next = strchr(p, ',');
1527
1528 if (next)
1529 *next++ = 0;
1530
19ad5673
AK
1531 t = parse_time_or_die("force_key_frames", p, 1);
1532 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1533
1534 p = next;
19ad5673
AK
1535 }
1536}
1537
ea9367e9 1538static int transcode_init(void)
6291d7e4 1539{
2c474ddb 1540 int ret = 0, i, j, k;
1bb77e51 1541 AVFormatContext *oc;
a5fd7c60 1542 AVCodecContext *codec;
4288e031 1543 OutputStream *ost;
6291d7e4
AK
1544 InputStream *ist;
1545 char error[1024];
1546 int want_sdp = 1;
b0c9e8e0 1547
f4805328
AK
1548 /* init framerate emulation */
1549 for (i = 0; i < nb_input_files; i++) {
2e215267 1550 InputFile *ifile = input_files[i];
f4805328
AK
1551 if (ifile->rate_emu)
1552 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1553 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1554 }
6291d7e4
AK
1555
1556 /* output stream init */
03f30c83 1557 for (i = 0; i < nb_output_files; i++) {
2e215267 1558 oc = output_files[i]->ctx;
1bb77e51
AK
1559 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1560 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1561 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1562 return AVERROR(EINVAL);
6291d7e4 1563 }
6291d7e4
AK
1564 }
1565
3b266da3
AK
1566 /* init complex filtergraphs */
1567 for (i = 0; i < nb_filtergraphs; i++)
1568 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1569 return ret;
1570
6291d7e4 1571 /* for each output stream, we compute the right encoding parameters */
4288e031 1572 for (i = 0; i < nb_output_streams; i++) {
a5fd7c60 1573 AVCodecContext *icodec = NULL;
2e215267
AK
1574 ost = output_streams[i];
1575 oc = output_files[ost->file_index]->ctx;
3b266da3 1576 ist = get_input_stream(ost);
6291d7e4 1577
4dbc6cee
AK
1578 if (ost->attachment_filename)
1579 continue;
1580
03f30c83 1581 codec = ost->st->codec;
6291d7e4 1582
3b266da3
AK
1583 if (ist) {
1584 icodec = ist->st->codec;
1585
1586 ost->st->disposition = ist->st->disposition;
1587 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1588 codec->chroma_sample_location = icodec->chroma_sample_location;
1589 }
6291d7e4 1590
3d813e4c 1591 if (ost->stream_copy) {
8c4022ac
AK
1592 uint64_t extra_size;
1593
1594 av_assert0(ist && !ost->filter);
1595
1596 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1597
e6d2b737 1598 if (extra_size > INT_MAX) {
eaf2d37a 1599 return AVERROR(EINVAL);
e6d2b737 1600 }
6291d7e4
AK
1601
1602 /* if stream_copy is selected, no need to decode or encode */
03f30c83 1603 codec->codec_id = icodec->codec_id;
6291d7e4
AK
1604 codec->codec_type = icodec->codec_type;
1605
03f30c83
AK
1606 if (!codec->codec_tag) {
1607 if (!oc->oformat->codec_tag ||
1608 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1609 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
1610 codec->codec_tag = icodec->codec_tag;
1611 }
1612
03f30c83 1613 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
1614 codec->rc_max_rate = icodec->rc_max_rate;
1615 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 1616 codec->field_order = icodec->field_order;
03f30c83 1617 codec->extradata = av_mallocz(extra_size);
e6d2b737 1618 if (!codec->extradata) {
eaf2d37a 1619 return AVERROR(ENOMEM);
e6d2b737 1620 }
6291d7e4 1621 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 1622 codec->extradata_size = icodec->extradata_size;
7bb3e625 1623 if (!copy_tb) {
03f30c83 1624 codec->time_base = icodec->time_base;
6291d7e4
AK
1625 codec->time_base.num *= icodec->ticks_per_frame;
1626 av_reduce(&codec->time_base.num, &codec->time_base.den,
1627 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 1628 } else
6291d7e4 1629 codec->time_base = ist->st->time_base;
03f30c83 1630
7636c8c6 1631 switch (codec->codec_type) {
6291d7e4 1632 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1633 if (audio_volume != 256) {
e3245b26 1634 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
5e3f9979 1635 exit(1);
6291d7e4 1636 }
03f30c83
AK
1637 codec->channel_layout = icodec->channel_layout;
1638 codec->sample_rate = icodec->sample_rate;
1639 codec->channels = icodec->channels;
1640 codec->frame_size = icodec->frame_size;
6291d7e4 1641 codec->audio_service_type = icodec->audio_service_type;
03f30c83 1642 codec->block_align = icodec->block_align;
6291d7e4
AK
1643 break;
1644 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
1645 codec->pix_fmt = icodec->pix_fmt;
1646 codec->width = icodec->width;
1647 codec->height = icodec->height;
1648 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 1649 if (!codec->sample_aspect_ratio.num) {
03f30c83 1650 codec->sample_aspect_ratio =
6291d7e4
AK
1651 ost->st->sample_aspect_ratio =
1652 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1653 ist->st->codec->sample_aspect_ratio.num ?
1654 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1655 }
1656 break;
1657 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 1658 codec->width = icodec->width;
6291d7e4
AK
1659 codec->height = icodec->height;
1660 break;
1661 case AVMEDIA_TYPE_DATA:
3ccd1580 1662 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1663 break;
1664 default:
1665 abort();
1666 }
1667 } else {
2994913d
AK
1668 if (!ost->enc) {
1669 /* should only happen when a default codec is not present. */
1670 snprintf(error, sizeof(error), "Automatic encoder selection "
1671 "failed for output stream #%d:%d. Default encoder for "
1672 "format %s is probably disabled. Please choose an "
1673 "encoder manually.\n", ost->file_index, ost->index,
1674 oc->oformat->name);
1675 ret = AVERROR(EINVAL);
1676 goto dump_format;
1677 }
03f30c83 1678
3b266da3
AK
1679 if (ist)
1680 ist->decoding_needed = 1;
11fdb7e1 1681 ost->encoding_needed = 1;
03f30c83 1682
74b961db
AK
1683 /*
1684 * We want CFR output if and only if one of those is true:
1685 * 1) user specified output framerate with -r
1686 * 2) user specified -vsync cfr
1687 * 3) output format is CFR and the user didn't force vsync to
1688 * something else than CFR
1689 *
1690 * in such a case, set ost->frame_rate
1691 */
1692 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1693 !ost->frame_rate.num && ist &&
1694 (video_sync_method == VSYNC_CFR ||
1695 (video_sync_method == VSYNC_AUTO &&
1696 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
44b0b85f
AK
1697 ost->frame_rate = ist->framerate.num ? ist->framerate :
1698 ist->st->avg_frame_rate.num ?
1699 ist->st->avg_frame_rate :
1700 (AVRational){25, 1};
1701
74b961db
AK
1702 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1703 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1704 ost->frame_rate = ost->enc->supported_framerates[idx];
1705 }
1706 }
1707
369cb092
AK
1708 if (!ost->filter &&
1709 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1710 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1711 FilterGraph *fg;
1712 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1713 if (configure_filtergraph(fg)) {
3b266da3
AK
1714 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1715 exit(1);
1716 }
369cb092 1717 }
3b266da3 1718
369cb092
AK
1719 switch (codec->codec_type) {
1720 case AVMEDIA_TYPE_AUDIO:
1721 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1722 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1723 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1724 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1725 codec->time_base = (AVRational){ 1, codec->sample_rate };
1726 break;
1727 case AVMEDIA_TYPE_VIDEO:
74b961db 1728 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1729
3b266da3
AK
1730 codec->width = ost->filter->filter->inputs[0]->w;
1731 codec->height = ost->filter->filter->inputs[0]->h;
1732 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1733 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1734 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1735 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1736 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1737
a5fd7c60
AK
1738 if (icodec &&
1739 (codec->width != icodec->width ||
1740 codec->height != icodec->height ||
1741 codec->pix_fmt != icodec->pix_fmt)) {
b7327887
AK
1742 codec->bits_per_raw_sample = 0;
1743 }
1744
19ad5673
AK
1745 if (ost->forced_keyframes)
1746 parse_forced_key_frames(ost->forced_keyframes, ost,
1747 ost->st->codec);
6291d7e4
AK
1748 break;
1749 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 1750 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
1751 break;
1752 default:
1753 abort();
1754 break;
1755 }
1756 /* two pass mode */
515901fa 1757 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1758 char logfilename[1024];
1759 FILE *f;
1760
1761 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1762 ost->logfile_prefix ? ost->logfile_prefix :
1763 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1764 i);
6e8be949
AK
1765 if (!strcmp(ost->enc->name, "libx264")) {
1766 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1767 } else {
64334ddb
AK
1768 if (codec->flags & CODEC_FLAG_PASS1) {
1769 f = fopen(logfilename, "wb");
1770 if (!f) {
1771 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1772 logfilename, strerror(errno));
5e3f9979 1773 exit(1);
64334ddb
AK
1774 }
1775 ost->logfile = f;
1776 } else {
1777 char *logbuffer;
1778 size_t logbuffer_size;
1779 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1780 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1781 logfilename);
5e3f9979 1782 exit(1);
64334ddb
AK
1783 }
1784 codec->stats_in = logbuffer;
6291d7e4 1785 }
6e8be949 1786 }
6291d7e4
AK
1787 }
1788 }
6291d7e4
AK
1789 }
1790
1791 /* open each encoder */
4288e031 1792 for (i = 0; i < nb_output_streams; i++) {
2e215267 1793 ost = output_streams[i];
6291d7e4 1794 if (ost->encoding_needed) {
03f30c83 1795 AVCodec *codec = ost->enc;
3b266da3 1796 AVCodecContext *dec = NULL;
3b266da3
AK
1797
1798 if ((ist = get_input_stream(ost)))
1799 dec = ist->st->codec;
1800 if (dec && dec->subtitle_header) {
6291d7e4
AK
1801 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1802 if (!ost->st->codec->subtitle_header) {
1803 ret = AVERROR(ENOMEM);
1804 goto dump_format;
1805 }
1806 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1807 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1808 }
2473a45c
JG
1809 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1810 av_dict_set(&ost->opts, "threads", "auto", 0);
6291d7e4 1811 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
9a414d89 1812 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
1813 ost->file_index, ost->index);
1814 ret = AVERROR(EINVAL);
1815 goto dump_format;
1816 }
1817 assert_codec_experimental(ost->st->codec, 1);
1818 assert_avoptions(ost->opts);
1819 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1820 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1821 "It takes bits/s as argument, not kbits/s\n");
1822 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
1823
1824 if (ost->st->codec->me_threshold)
2e215267 1825 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
1826 }
1827 }
1828
630902a1
AK
1829 /* init input streams */
1830 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1831 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1832 goto dump_format;
6291d7e4 1833
2c474ddb
AK
1834 /* discard unused programs */
1835 for (i = 0; i < nb_input_files; i++) {
2e215267 1836 InputFile *ifile = input_files[i];
2c474ddb
AK
1837 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1838 AVProgram *p = ifile->ctx->programs[j];
1839 int discard = AVDISCARD_ALL;
1840
1841 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1842 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1843 discard = AVDISCARD_DEFAULT;
1844 break;
1845 }
1846 p->discard = discard;
1847 }
1848 }
1849
6291d7e4 1850 /* open files and write file headers */
af70aa45 1851 for (i = 0; i < nb_output_files; i++) {
2e215267 1852 oc = output_files[i]->ctx;
1bb77e51 1853 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
1854 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1855 char errbuf[128];
1856 const char *errbuf_ptr = errbuf;
1857 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1858 errbuf_ptr = strerror(AVUNERROR(ret));
1859 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
6291d7e4
AK
1860 ret = AVERROR(EINVAL);
1861 goto dump_format;
1862 }
2e215267 1863 assert_avoptions(output_files[i]->opts);
1bb77e51 1864 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
1865 want_sdp = 0;
1866 }
1867 }
1868
1869 dump_format:
1870 /* dump the file output parameters - cannot be done before in case
1871 of stream copy */
03f30c83 1872 for (i = 0; i < nb_output_files; i++) {
2e215267 1873 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
1874 }
1875
1876 /* dump the stream mapping */
e3245b26 1877 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
1878 for (i = 0; i < nb_input_streams; i++) {
1879 ist = input_streams[i];
1880
1881 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
1882 if (ist->filters[j]->graph->graph_desc) {
1883 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1884 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 1885 ist->filters[j]->name);
3b266da3
AK
1886 if (nb_filtergraphs > 1)
1887 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1888 av_log(NULL, AV_LOG_INFO, "\n");
1889 }
1890 }
1891 }
1892
e3245b26 1893 for (i = 0; i < nb_output_streams; i++) {
2e215267 1894 ost = output_streams[i];
4dbc6cee
AK
1895
1896 if (ost->attachment_filename) {
1897 /* an attached file */
1898 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1899 ost->attachment_filename, ost->file_index, ost->index);
1900 continue;
1901 }
3b266da3
AK
1902
1903 if (ost->filter && ost->filter->graph->graph_desc) {
1904 /* output from a complex graph */
cf6c38c6 1905 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
1906 if (nb_filtergraphs > 1)
1907 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1908
1909 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1910 ost->index, ost->enc ? ost->enc->name : "?");
1911 continue;
1912 }
1913
9a414d89 1914 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
1915 input_streams[ost->source_index]->file_index,
1916 input_streams[ost->source_index]->st->index,
e3245b26
AK
1917 ost->file_index,
1918 ost->index);
2e215267 1919 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 1920 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
1921 ost->sync_ist->file_index,
1922 ost->sync_ist->st->index);
3d813e4c 1923 if (ost->stream_copy)
e3245b26
AK
1924 av_log(NULL, AV_LOG_INFO, " (copy)");
1925 else
2e215267
AK
1926 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1927 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
1928 ost->enc ? ost->enc->name : "?");
1929 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
1930 }
1931
1932 if (ret) {
e3245b26 1933 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 1934 return ret;
6291d7e4
AK
1935 }
1936
1937 if (want_sdp) {
ea9367e9 1938 print_sdp();
6291d7e4
AK
1939 }
1940
eaf2d37a
AC
1941 return 0;
1942}
1943
2f51ec2b
AK
1944/**
1945 * @return 1 if there are still streams where more output is wanted,
1946 * 0 otherwise
1947 */
1948static int need_output(void)
1949{
1950 int i;
1951
1952 for (i = 0; i < nb_output_streams; i++) {
1953 OutputStream *ost = output_streams[i];
1954 OutputFile *of = output_files[ost->file_index];
1955 AVFormatContext *os = output_files[ost->file_index]->ctx;
1956
57d24225 1957 if (ost->finished ||
2f51ec2b
AK
1958 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1959 continue;
e58b75f7 1960 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
1961 int j;
1962 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 1963 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
1964 continue;
1965 }
1966
1967 return 1;
1968 }
1969
1970 return 0;
1971}
1972
83916029 1973static InputFile *select_input_file(void)
a508e7a1 1974{
83916029 1975 InputFile *ifile = NULL;
a508e7a1 1976 int64_t ipts_min = INT64_MAX;
83916029 1977 int i;
a508e7a1
AK
1978
1979 for (i = 0; i < nb_input_streams; i++) {
1980 InputStream *ist = input_streams[i];
1981 int64_t ipts = ist->last_dts;
1982
0b26ef42 1983 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
1984 continue;
1985 if (!input_files[ist->file_index]->eof_reached) {
1986 if (ipts < ipts_min) {
1987 ipts_min = ipts;
83916029 1988 ifile = input_files[ist->file_index];
a508e7a1
AK
1989 }
1990 }
1991 }
1992
83916029 1993 return ifile;
a508e7a1
AK
1994}
1995
47b812e9 1996#if HAVE_PTHREADS
5db5169e
AK
1997static void *input_thread(void *arg)
1998{
1999 InputFile *f = arg;
2000 int ret = 0;
2001
2002 while (!transcoding_finished && ret >= 0) {
2003 AVPacket pkt;
2004 ret = av_read_frame(f->ctx, &pkt);
2005
2006 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2007 av_usleep(10000);
5db5169e
AK
2008 ret = 0;
2009 continue;
2010 } else if (ret < 0)
2011 break;
2012
2013 pthread_mutex_lock(&f->fifo_lock);
2014 while (!av_fifo_space(f->fifo))
2015 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2016
2017 av_dup_packet(&pkt);
2018 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2019
2020 pthread_mutex_unlock(&f->fifo_lock);
2021 }
2022
2023 f->finished = 1;
2024 return NULL;
2025}
2026
2027static void free_input_threads(void)
2028{
2029 int i;
2030
2031 if (nb_input_files == 1)
2032 return;
2033
2034 transcoding_finished = 1;
2035
2036 for (i = 0; i < nb_input_files; i++) {
2037 InputFile *f = input_files[i];
2038 AVPacket pkt;
2039
9034b0ed 2040 if (!f->fifo || f->joined)
5db5169e
AK
2041 continue;
2042
2043 pthread_mutex_lock(&f->fifo_lock);
2044 while (av_fifo_size(f->fifo)) {
2045 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2046 av_free_packet(&pkt);
2047 }
2048 pthread_cond_signal(&f->fifo_cond);
2049 pthread_mutex_unlock(&f->fifo_lock);
2050
2051 pthread_join(f->thread, NULL);
2052 f->joined = 1;
2053
2054 while (av_fifo_size(f->fifo)) {
2055 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2056 av_free_packet(&pkt);
2057 }
2058 av_fifo_free(f->fifo);
2059 }
2060}
2061
2062static int init_input_threads(void)
2063{
2064 int i, ret;
2065
2066 if (nb_input_files == 1)
2067 return 0;
2068
2069 for (i = 0; i < nb_input_files; i++) {
2070 InputFile *f = input_files[i];
2071
2072 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2073 return AVERROR(ENOMEM);
2074
2075 pthread_mutex_init(&f->fifo_lock, NULL);
2076 pthread_cond_init (&f->fifo_cond, NULL);
2077
2078 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2079 return AVERROR(ret);
2080 }
2081 return 0;
2082}
2083
2084static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2085{
2086 int ret = 0;
2087
2088 pthread_mutex_lock(&f->fifo_lock);
2089
2090 if (av_fifo_size(f->fifo)) {
2091 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2092 pthread_cond_signal(&f->fifo_cond);
2093 } else {
2094 if (f->finished)
2095 ret = AVERROR_EOF;
2096 else
2097 ret = AVERROR(EAGAIN);
2098 }
2099
2100 pthread_mutex_unlock(&f->fifo_lock);
2101
2102 return ret;
2103}
2104#endif
2105
2106static int get_input_packet(InputFile *f, AVPacket *pkt)
2107{
47b812e9 2108#if HAVE_PTHREADS
5db5169e
AK
2109 if (nb_input_files > 1)
2110 return get_input_packet_mt(f, pkt);
2111#endif
2112 return av_read_frame(f->ctx, pkt);
2113}
2114
0b26ef42
AK
2115static int got_eagain(void)
2116{
2117 int i;
2118 for (i = 0; i < nb_input_files; i++)
2119 if (input_files[i]->eagain)
2120 return 1;
2121 return 0;
2122}
2123
2124static void reset_eagain(void)
2125{
2126 int i;
2127 for (i = 0; i < nb_input_files; i++)
2128 input_files[i]->eagain = 0;
2129}
2130
0c00fd80
AK
2131/**
2132 * Read one packet from an input file and send it for
2133 * - decoding -> lavfi (audio/video)
2134 * - decoding -> encoding -> muxing (subtitles)
2135 * - muxing (streamcopy)
2136 *
2137 * @return
2138 * - 0 -- one packet was read and processed
2139 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2140 * this function should be called again
2141 * - AVERROR_EOF -- this function should not be called again
2142 */
2143static int process_input(void)
2144{
2145 InputFile *ifile;
2146 AVFormatContext *is;
2147 InputStream *ist;
2148 AVPacket pkt;
2149 int ret, i, j;
2150
2151 /* select the stream that we must read now */
2152 ifile = select_input_file();
2153 /* if none, if is finished */
2154 if (!ifile) {
2155 if (got_eagain()) {
2156 reset_eagain();
2157 av_usleep(10000);
2158 return AVERROR(EAGAIN);
2159 }
2160 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2161 return AVERROR_EOF;
2162 }
2163
2164 is = ifile->ctx;
2165 ret = get_input_packet(ifile, &pkt);
2166
2167 if (ret == AVERROR(EAGAIN)) {
2168 ifile->eagain = 1;
2169 return ret;
2170 }
2171 if (ret < 0) {
2172 if (ret != AVERROR_EOF) {
2173 print_error(is->filename, ret);
2174 if (exit_on_error)
5e3f9979 2175 exit(1);
0c00fd80
AK
2176 }
2177 ifile->eof_reached = 1;
2178
2179 for (i = 0; i < ifile->nb_streams; i++) {
2180 ist = input_streams[ifile->ist_index + i];
2181 if (ist->decoding_needed)
2182 output_packet(ist, NULL);
2183
2184 /* mark all outputs that don't go through lavfi as finished */
2185 for (j = 0; j < nb_output_streams; j++) {
2186 OutputStream *ost = output_streams[j];
2187
2188 if (ost->source_index == ifile->ist_index + i &&
2189 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2190 ost->finished= 1;
0c00fd80
AK
2191 }
2192 }
2193
3c0df905 2194 return AVERROR(EAGAIN);
0c00fd80
AK
2195 }
2196
2197 reset_eagain();
2198
2199 if (do_pkt_dump) {
2200 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2201 is->streams[pkt.stream_index]);
2202 }
2203 /* the following test is needed in case new streams appear
2204 dynamically in stream : we ignore them */
2205 if (pkt.stream_index >= ifile->nb_streams)
2206 goto discard_packet;
2207
2208 ist = input_streams[ifile->ist_index + pkt.stream_index];
2209 if (ist->discard)
2210 goto discard_packet;
2211
2212 if (pkt.dts != AV_NOPTS_VALUE)
2213 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2214 if (pkt.pts != AV_NOPTS_VALUE)
2215 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2216
2217 if (pkt.pts != AV_NOPTS_VALUE)
2218 pkt.pts *= ist->ts_scale;
2219 if (pkt.dts != AV_NOPTS_VALUE)
2220 pkt.dts *= ist->ts_scale;
2221
2222 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2223 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2224 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2225 int64_t delta = pkt_dts - ist->next_dts;
2226
2227 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2228 ifile->ts_offset -= delta;
2229 av_log(NULL, AV_LOG_DEBUG,
2230 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2231 delta, ifile->ts_offset);
2232 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2233 if (pkt.pts != AV_NOPTS_VALUE)
2234 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2235 }
2236 }
2237
2238 ret = output_packet(ist, &pkt);
2239 if (ret < 0) {
2240 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2241 ist->file_index, ist->st->index);
2242 if (exit_on_error)
5e3f9979 2243 exit(1);
0c00fd80
AK
2244 }
2245
2246discard_packet:
2247 av_free_packet(&pkt);
2248
2249 return 0;
2250}
2251
eaf2d37a
AC
2252/*
2253 * The following code is the main loop of the file converter
2254 */
ea9367e9 2255static int transcode(void)
eaf2d37a 2256{
0c00fd80
AK
2257 int ret, i, need_input = 1;
2258 AVFormatContext *os;
eaf2d37a
AC
2259 OutputStream *ost;
2260 InputStream *ist;
eaf2d37a
AC
2261 int64_t timer_start;
2262
ea9367e9 2263 ret = transcode_init();
eaf2d37a
AC
2264 if (ret < 0)
2265 goto fail;
2266
e3245b26 2267 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2268 term_init();
2269
2270 timer_start = av_gettime();
2271
47b812e9 2272#if HAVE_PTHREADS
5db5169e
AK
2273 if ((ret = init_input_threads()) < 0)
2274 goto fail;
2275#endif
2276
c0fbf971 2277 while (!received_sigterm) {
3b266da3 2278 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2279 if (!need_output()) {
2280 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2281 break;
2f51ec2b 2282 }
3b266da3 2283
0c00fd80
AK
2284 /* read and process one input packet if needed */
2285 if (need_input) {
2286 ret = process_input();
2287 if (ret == AVERROR_EOF)
2288 need_input = 0;
6291d7e4
AK
2289 }
2290
0c00fd80 2291 ret = poll_filters();
6291d7e4 2292 if (ret < 0) {
0c00fd80 2293 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2294 continue;
6291d7e4 2295
0c00fd80
AK
2296 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2297 break;
6291d7e4
AK
2298 }
2299
6291d7e4 2300 /* dump report by using the output first video and audio streams */
ea9367e9 2301 print_report(0, timer_start);
6291d7e4 2302 }
47b812e9 2303#if HAVE_PTHREADS
5db5169e
AK
2304 free_input_threads();
2305#endif
6291d7e4
AK
2306
2307 /* at the end of stream, we must flush the decoder buffers */
2308 for (i = 0; i < nb_input_streams; i++) {
2e215267 2309 ist = input_streams[i];
9e8aae44 2310 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2311 output_packet(ist, NULL);
6291d7e4
AK
2312 }
2313 }
560f7774 2314 poll_filters();
ea9367e9 2315 flush_encoders();
6291d7e4
AK
2316
2317 term_exit();
2318
2319 /* write the trailer if needed and close file */
7636c8c6 2320 for (i = 0; i < nb_output_files; i++) {
2e215267 2321 os = output_files[i]->ctx;
6291d7e4
AK
2322 av_write_trailer(os);
2323 }
2324
2325 /* dump report by using the first video and audio streams */
ea9367e9 2326 print_report(1, timer_start);
6291d7e4
AK
2327
2328 /* close each encoder */
4288e031 2329 for (i = 0; i < nb_output_streams; i++) {
2e215267 2330 ost = output_streams[i];
6291d7e4
AK
2331 if (ost->encoding_needed) {
2332 av_freep(&ost->st->codec->stats_in);
2333 avcodec_close(ost->st->codec);
2334 }
6291d7e4
AK
2335 }
2336
2337 /* close each decoder */
2338 for (i = 0; i < nb_input_streams; i++) {
2e215267 2339 ist = input_streams[i];
6291d7e4
AK
2340 if (ist->decoding_needed) {
2341 avcodec_close(ist->st->codec);
2342 }
2343 }
2344
2345 /* finished ! */
2346 ret = 0;
2347
2348 fail:
47b812e9 2349#if HAVE_PTHREADS
5db5169e
AK
2350 free_input_threads();
2351#endif
6291d7e4 2352
4288e031
AK
2353 if (output_streams) {
2354 for (i = 0; i < nb_output_streams; i++) {
2e215267 2355 ost = output_streams[i];
6291d7e4 2356 if (ost) {
3d813e4c 2357 if (ost->stream_copy)
6291d7e4
AK
2358 av_freep(&ost->st->codec->extradata);
2359 if (ost->logfile) {
2360 fclose(ost->logfile);
2361 ost->logfile = NULL;
2362 }
6291d7e4 2363 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2364 av_free(ost->forced_kf_pts);
6291d7e4 2365 av_dict_free(&ost->opts);
6291d7e4
AK
2366 }
2367 }
6291d7e4
AK
2368 }
2369 return ret;
2370}
2371
f5e66827 2372static int64_t getutime(void)
a2c0b830 2373{
f5e66827
AK
2374#if HAVE_GETRUSAGE
2375 struct rusage rusage;
a2c0b830 2376
f5e66827
AK
2377 getrusage(RUSAGE_SELF, &rusage);
2378 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2379#elif HAVE_GETPROCESSTIMES
2380 HANDLE proc;
2381 FILETIME c, e, k, u;
2382 proc = GetCurrentProcess();
2383 GetProcessTimes(proc, &c, &e, &k, &u);
2384 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2385#else
2386 return av_gettime();
2387#endif
a2c0b830
AK
2388}
2389
f5e66827 2390static int64_t getmaxrss(void)
6291d7e4 2391{
f5e66827
AK
2392#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2393 struct rusage rusage;
2394 getrusage(RUSAGE_SELF, &rusage);
2395 return (int64_t)rusage.ru_maxrss * 1024;
2396#elif HAVE_GETPROCESSMEMORYINFO
2397 HANDLE proc;
2398 PROCESS_MEMORY_COUNTERS memcounters;
2399 proc = GetCurrentProcess();
2400 memcounters.cb = sizeof(memcounters);
2401 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2402 return memcounters.PeakPagefileUsage;
2403#else
6291d7e4 2404 return 0;
f5e66827 2405#endif
6291d7e4
AK
2406}
2407
f5e66827 2408static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3ec34462 2409{
f5e66827
AK
2410 int idx = locate_option(argc, argv, options, "cpuflags");
2411 if (idx && argv[idx + 1])
11d957fb 2412 opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
3ec34462
AK
2413}
2414
6291d7e4
AK
2415int main(int argc, char **argv)
2416{
575ec4e1 2417 OptionsContext o = { 0 };
6291d7e4
AK
2418 int64_t ti;
2419
5e3f9979
DEP
2420 atexit(exit_program);
2421
575ec4e1
AK
2422 reset_options(&o);
2423
6291d7e4 2424 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2425 parse_loglevel(argc, argv, options);
6291d7e4
AK
2426
2427 avcodec_register_all();
2428#if CONFIG_AVDEVICE
2429 avdevice_register_all();
2430#endif
6291d7e4 2431 avfilter_register_all();
6291d7e4 2432 av_register_all();
776f2bb9 2433 avformat_network_init();
6291d7e4 2434
6291d7e4
AK
2435 show_banner();
2436
4138cd29
AK
2437 parse_cpuflags(argc, argv, options);
2438
6291d7e4 2439 /* parse options */
575ec4e1 2440 parse_options(&o, argc, argv, options, opt_output_file);
6291d7e4 2441
7636c8c6 2442 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2443 show_usage();
e3245b26 2444 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
5e3f9979 2445 exit(1);
6291d7e4
AK
2446 }
2447
2448 /* file converter / grab */
2449 if (nb_output_files <= 0) {
2450 fprintf(stderr, "At least one output file must be specified\n");
5e3f9979 2451 exit(1);
6291d7e4
AK
2452 }
2453
6291d7e4 2454 ti = getutime();
ea9367e9 2455 if (transcode() < 0)
5e3f9979 2456 exit(1);
6291d7e4
AK
2457 ti = getutime() - ti;
2458 if (do_benchmark) {
2459 int maxrss = getmaxrss() / 1024;
2460 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2461 }
2462
5e3f9979 2463 exit(0);
dad09ff9 2464 return 0;
6291d7e4 2465}