avfilter: fix graphparser memleaks on error paths
[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
3f65eff4 56#include <sys/time.h>
6291d7e4 57#include <sys/types.h>
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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
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71#if HAVE_PTHREADS
72#include <pthread.h>
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73#endif
74
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75#include <time.h>
76
f5e66827 77#include "avconv.h"
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78#include "cmdutils.h"
79
80#include "libavutil/avassert.h"
81
82const char program_name[] = "avconv";
83const int program_birth_year = 2000;
84
6291d7e4 85static FILE *vstats_file;
6291d7e4 86
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87static int64_t video_size = 0;
88static int64_t audio_size = 0;
89static int64_t extra_size = 0;
90static int nb_frames_dup = 0;
91static int nb_frames_drop = 0;
6291d7e4 92
6291d7e4 93
3460dd8a 94
47b812e9 95#if HAVE_PTHREADS
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96/* signal to input threads that they should exit; set by the main thread */
97static int transcoding_finished;
98#endif
99
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100#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
101
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102InputStream **input_streams = NULL;
103int nb_input_streams = 0;
104InputFile **input_files = NULL;
105int nb_input_files = 0;
6b779ccc 106
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107OutputStream **output_streams = NULL;
108int nb_output_streams = 0;
109OutputFile **output_files = NULL;
110int nb_output_files = 0;
6b779ccc 111
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112FilterGraph **filtergraphs;
113int nb_filtergraphs;
575ec4e1 114
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115static void term_exit(void)
116{
117 av_log(NULL, AV_LOG_QUIET, "");
118}
119
120static volatile int received_sigterm = 0;
121static volatile int received_nb_signals = 0;
122
123static void
124sigterm_handler(int sig)
125{
126 received_sigterm = sig;
127 received_nb_signals++;
128 term_exit();
129}
130
131static void term_init(void)
132{
7636c8c6 133 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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134 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
135#ifdef SIGXCPU
136 signal(SIGXCPU, sigterm_handler);
137#endif
138}
139
2abe947a 140static int decode_interrupt_cb(void *ctx)
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141{
142 return received_nb_signals > 1;
143}
144
f5e66827 145const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
2abe947a 146
8be5b0d6 147static void exit_program(void)
6291d7e4 148{
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149 int i, j;
150
151 for (i = 0; i < nb_filtergraphs; i++) {
152 avfilter_graph_free(&filtergraphs[i]->graph);
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153 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
154 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 155 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 156 }
560f7774 157 av_freep(&filtergraphs[i]->inputs);
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158 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
159 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 160 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 161 }
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162 av_freep(&filtergraphs[i]->outputs);
163 av_freep(&filtergraphs[i]);
164 }
165 av_freep(&filtergraphs);
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166
167 /* close files */
7636c8c6 168 for (i = 0; i < nb_output_files; i++) {
2e215267 169 AVFormatContext *s = output_files[i]->ctx;
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170 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avio_close(s->pb);
172 avformat_free_context(s);
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173 av_dict_free(&output_files[i]->opts);
174 av_freep(&output_files[i]);
6291d7e4 175 }
1135a071 176 for (i = 0; i < nb_output_streams; i++) {
2e215267 177 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
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178 while (bsfc) {
179 AVBitStreamFilterContext *next = bsfc->next;
180 av_bitstream_filter_close(bsfc);
181 bsfc = next;
182 }
2e215267 183 output_streams[i]->bitstream_filters = NULL;
11d1ca4b 184 avcodec_free_frame(&output_streams[i]->filtered_frame);
ac646076 185
19ad5673 186 av_freep(&output_streams[i]->forced_keyframes);
2e215267 187 av_freep(&output_streams[i]->avfilter);
bbcedade 188 av_freep(&output_streams[i]->logfile_prefix);
2e215267 189 av_freep(&output_streams[i]);
1135a071 190 }
7636c8c6 191 for (i = 0; i < nb_input_files; i++) {
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192 avformat_close_input(&input_files[i]->ctx);
193 av_freep(&input_files[i]);
6291d7e4 194 }
9179f27c 195 for (i = 0; i < nb_input_streams; i++) {
11d1ca4b 196 avcodec_free_frame(&input_streams[i]->decoded_frame);
2e215267 197 av_dict_free(&input_streams[i]->opts);
3ffa2335 198 free_buffer_pool(&input_streams[i]->buffer_pool);
560f7774 199 av_freep(&input_streams[i]->filters);
2e215267 200 av_freep(&input_streams[i]);
9179f27c 201 }
6291d7e4 202
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203 if (vstats_file)
204 fclose(vstats_file);
205 av_free(vstats_filename);
206
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207 av_freep(&input_streams);
208 av_freep(&input_files);
4288e031 209 av_freep(&output_streams);
af70aa45 210 av_freep(&output_files);
6291d7e4 211
6291d7e4 212 uninit_opts();
6291d7e4 213
6291d7e4 214 avfilter_uninit();
776f2bb9 215 avformat_network_deinit();
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216
217 if (received_sigterm) {
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218 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
219 (int) received_sigterm);
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220 exit (255);
221 }
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222}
223
f5e66827 224void assert_avoptions(AVDictionary *m)
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225{
226 AVDictionaryEntry *t;
227 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 228 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
5e3f9979 229 exit(1);
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230 }
231}
232
c854102d 233static void abort_codec_experimental(AVCodec *c, int encoder)
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234{
235 const char *codec_string = encoder ? "encoder" : "decoder";
236 AVCodec *codec;
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237 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
238 "results.\nAdd '-strict experimental' if you want to use it.\n",
239 codec_string, c->name);
240 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
241 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
242 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
243 codec_string, codec->name);
244 exit(1);
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245}
246
c1ef30a6 247/*
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248 * Update the requested input sample format based on the output sample format.
249 * This is currently only used to request float output from decoders which
250 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
251 * Ideally this will be removed in the future when decoders do not do format
252 * conversion and only output in their native format.
253 */
254static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
255 AVCodecContext *enc)
256{
257 /* if sample formats match or a decoder sample format has already been
258 requested, just return */
259 if (enc->sample_fmt == dec->sample_fmt ||
260 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
261 return;
262
263 /* if decoder supports more than one output format */
264 if (dec_codec && dec_codec->sample_fmts &&
265 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
266 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
267 const enum AVSampleFormat *p;
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268 int min_dec = INT_MAX, min_inc = INT_MAX;
269 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
270 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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271
272 /* find a matching sample format in the encoder */
273 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
274 if (*p == enc->sample_fmt) {
275 dec->request_sample_fmt = *p;
276 return;
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277 } else {
278 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
279 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
280 int fmt_diff = 32 * abs(dfmt - efmt);
281 if (av_sample_fmt_is_planar(*p) !=
282 av_sample_fmt_is_planar(enc->sample_fmt))
283 fmt_diff++;
284 if (dfmt == efmt) {
285 min_inc = fmt_diff;
286 inc_fmt = *p;
287 } else if (dfmt > efmt) {
288 if (fmt_diff < min_inc) {
289 min_inc = fmt_diff;
290 inc_fmt = *p;
291 }
292 } else {
293 if (fmt_diff < min_dec) {
294 min_dec = fmt_diff;
295 dec_fmt = *p;
296 }
297 }
298 }
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299 }
300
301 /* if none match, provide the one that matches quality closest */
fd41cb43 302 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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303 }
304}
305
f15f02c2 306static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 307{
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308 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
309 AVCodecContext *avctx = ost->st->codec;
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310 int ret;
311
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312 /*
313 * Audio encoders may split the packets -- #frames in != #packets out.
314 * But there is no reordering, so we can limit the number of output packets
315 * by simply dropping them here.
316 * Counting encoded video frames needs to be done separately because of
317 * reordering, see do_video_out()
318 */
319 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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320 if (ost->frame_number >= ost->max_frames) {
321 av_free_packet(pkt);
99932847 322 return;
c9594fe0 323 }
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324 ost->frame_number++;
325 }
326
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327 while (bsfc) {
328 AVPacket new_pkt = *pkt;
329 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
330 &new_pkt.data, &new_pkt.size,
331 pkt->data, pkt->size,
332 pkt->flags & AV_PKT_FLAG_KEY);
333 if (a > 0) {
6291d7e4 334 av_free_packet(pkt);
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335 new_pkt.destruct = av_destruct_packet;
336 } else if (a < 0) {
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337 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
338 bsfc->filter->name, pkt->stream_index,
339 avctx->codec ? avctx->codec->name : "copy");
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340 print_error("", a);
341 if (exit_on_error)
5e3f9979 342 exit(1);
6291d7e4 343 }
7636c8c6 344 *pkt = new_pkt;
6291d7e4 345
7636c8c6 346 bsfc = bsfc->next;
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347 }
348
61a09968 349 pkt->stream_index = ost->index;
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350 ret = av_interleaved_write_frame(s, pkt);
351 if (ret < 0) {
6291d7e4 352 print_error("av_interleaved_write_frame()", ret);
5e3f9979 353 exit(1);
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354 }
355}
356
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357static int check_recording_time(OutputStream *ost)
358{
2e215267 359 OutputFile *of = output_files[ost->file_index];
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360
361 if (of->recording_time != INT64_MAX &&
362 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
363 AV_TIME_BASE_Q) >= 0) {
57d24225 364 ost->finished = 1;
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365 return 0;
366 }
367 return 1;
368}
369
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370static void do_audio_out(AVFormatContext *s, OutputStream *ost,
371 AVFrame *frame)
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372{
373 AVCodecContext *enc = ost->st->codec;
ee458cb1 374 AVPacket pkt;
369cb092 375 int got_packet = 0;
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376
377 av_init_packet(&pkt);
378 pkt.data = NULL;
379 pkt.size = 0;
380
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381 if (!check_recording_time(ost))
382 return;
1270e12e 383
369cb092 384 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 385 frame->pts = ost->sync_opts;
369cb092 386 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 387
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388 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
389 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
5e3f9979 390 exit(1);
ee458cb1
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391 }
392
393 if (got_packet) {
ee458cb1
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394 if (pkt.pts != AV_NOPTS_VALUE)
395 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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396 if (pkt.dts != AV_NOPTS_VALUE)
397 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
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398 if (pkt.duration > 0)
399 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
400
401 write_frame(s, &pkt, ost);
402
403 audio_size += pkt.size;
404 }
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405}
406
407static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
408{
409 AVCodecContext *dec;
410 AVPicture *picture2;
411 AVPicture picture_tmp;
412 uint8_t *buf = 0;
413
414 dec = ist->st->codec;
415
416 /* deinterlace : must be done before any resize */
417 if (do_deinterlace) {
418 int size;
419
420 /* create temporary picture */
421 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
7636c8c6 422 buf = av_malloc(size);
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423 if (!buf)
424 return;
425
426 picture2 = &picture_tmp;
427 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
428
7636c8c6 429 if (avpicture_deinterlace(picture2, picture,
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430 dec->pix_fmt, dec->width, dec->height) < 0) {
431 /* if error, do not deinterlace */
e3245b26 432 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
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433 av_free(buf);
434 buf = NULL;
435 picture2 = picture;
436 }
437 } else {
438 picture2 = picture;
439 }
440
441 if (picture != picture2)
442 *picture = *picture2;
443 *bufp = buf;
444}
445
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446static void do_subtitle_out(AVFormatContext *s,
447 OutputStream *ost,
448 InputStream *ist,
449 AVSubtitle *sub,
450 int64_t pts)
451{
452 static uint8_t *subtitle_out = NULL;
453 int subtitle_out_max_size = 1024 * 1024;
454 int subtitle_out_size, nb, i;
455 AVCodecContext *enc;
456 AVPacket pkt;
457
458 if (pts == AV_NOPTS_VALUE) {
e3245b26 459 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 460 if (exit_on_error)
5e3f9979 461 exit(1);
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462 return;
463 }
464
465 enc = ost->st->codec;
466
467 if (!subtitle_out) {
468 subtitle_out = av_malloc(subtitle_out_max_size);
469 }
470
471 /* Note: DVB subtitle need one packet to draw them and one other
472 packet to clear them */
473 /* XXX: signal it in the codec context ? */
36ef5369 474 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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475 nb = 2;
476 else
477 nb = 1;
478
7636c8c6 479 for (i = 0; i < nb; i++) {
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480 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
481 if (!check_recording_time(ost))
482 return;
483
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484 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
485 // start_display_time is required to be 0
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486 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
487 sub->end_display_time -= sub->start_display_time;
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488 sub->start_display_time = 0;
489 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
490 subtitle_out_max_size, sub);
491 if (subtitle_out_size < 0) {
e3245b26 492 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
5e3f9979 493 exit(1);
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494 }
495
496 av_init_packet(&pkt);
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497 pkt.data = subtitle_out;
498 pkt.size = subtitle_out_size;
7636c8c6 499 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 500 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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501 /* XXX: the pts correction is handled here. Maybe handling
502 it in the codec would be better */
503 if (i == 0)
504 pkt.pts += 90 * sub->start_display_time;
505 else
506 pkt.pts += 90 * sub->end_display_time;
507 }
f15f02c2 508 write_frame(s, &pkt, ost);
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509 }
510}
511
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512static void do_video_out(AVFormatContext *s,
513 OutputStream *ost,
87ef060c 514 AVFrame *in_picture,
fb722a90 515 int *frame_size)
87ef060c 516{
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517 int ret, format_video_sync;
518 AVPacket pkt;
519 AVCodecContext *enc = ost->st->codec;
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520
521 *frame_size = 0;
522
553735f5 523 format_video_sync = video_sync_method;
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524 if (format_video_sync == VSYNC_AUTO)
525 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
526 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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527 if (format_video_sync != VSYNC_PASSTHROUGH &&
528 ost->frame_number &&
529 in_picture->pts != AV_NOPTS_VALUE &&
530 in_picture->pts < ost->sync_opts) {
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531 nb_frames_drop++;
532 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 533 return;
d43040e2 534 }
87ef060c 535
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536 if (in_picture->pts == AV_NOPTS_VALUE)
537 in_picture->pts = ost->sync_opts;
538 ost->sync_opts = in_picture->pts;
539
540
1270e12e 541 if (!ost->frame_number)
74b961db 542 ost->first_pts = in_picture->pts;
1270e12e 543
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544 av_init_packet(&pkt);
545 pkt.data = NULL;
546 pkt.size = 0;
6291d7e4 547
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548 if (!check_recording_time(ost) ||
549 ost->frame_number >= ost->max_frames)
550 return;
1270e12e 551
39885a4b 552 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 553 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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554 /* raw pictures are written as AVPicture structure to
555 avoid any copies. We support temporarily the older
556 method. */
557 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
558 enc->coded_frame->top_field_first = in_picture->top_field_first;
559 pkt.data = (uint8_t *)in_picture;
560 pkt.size = sizeof(AVPicture);
561 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
562 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 563
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564 write_frame(s, &pkt, ost);
565 } else {
566 int got_packet;
567 AVFrame big_picture;
568
569 big_picture = *in_picture;
570 /* better than nothing: use input picture interlaced
571 settings */
572 big_picture.interlaced_frame = in_picture->interlaced_frame;
573 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
574 if (ost->top_field_first == -1)
575 big_picture.top_field_first = in_picture->top_field_first;
576 else
577 big_picture.top_field_first = !!ost->top_field_first;
578 }
6291d7e4 579
fb722a90 580 big_picture.quality = ost->st->codec->global_quality;
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581 if (!enc->me_threshold)
582 big_picture.pict_type = 0;
583 if (ost->forced_kf_index < ost->forced_kf_count &&
584 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
585 big_picture.pict_type = AV_PICTURE_TYPE_I;
586 ost->forced_kf_index++;
587 }
588 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
589 if (ret < 0) {
590 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
5e3f9979 591 exit(1);
39885a4b 592 }
6291d7e4 593
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594 if (got_packet) {
595 if (pkt.pts != AV_NOPTS_VALUE)
596 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
597 if (pkt.dts != AV_NOPTS_VALUE)
598 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 599
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600 write_frame(s, &pkt, ost);
601 *frame_size = pkt.size;
602 video_size += pkt.size;
324fbadf 603
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604 /* if two pass, output log */
605 if (ost->logfile && enc->stats_out) {
606 fprintf(ost->logfile, "%s", enc->stats_out);
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607 }
608 }
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609 }
610 ost->sync_opts++;
611 /*
612 * For video, number of frames in == number of packets out.
613 * But there may be reordering, so we can't throw away frames on encoder
614 * flush, we need to limit them here, before they go into encoder.
615 */
616 ost->frame_number++;
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617}
618
7636c8c6
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619static double psnr(double d)
620{
621 return -10.0 * log(d) / log(10.0);
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622}
623
624static void do_video_stats(AVFormatContext *os, OutputStream *ost,
625 int frame_size)
626{
627 AVCodecContext *enc;
628 int frame_number;
629 double ti1, bitrate, avg_bitrate;
630
631 /* this is executed just the first time do_video_stats is called */
632 if (!vstats_file) {
633 vstats_file = fopen(vstats_filename, "w");
634 if (!vstats_file) {
635 perror("fopen");
5e3f9979 636 exit(1);
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637 }
638 }
639
640 enc = ost->st->codec;
641 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
642 frame_number = ost->frame_number;
7636c8c6 643 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 644 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 645 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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646
647 fprintf(vstats_file,"f_size= %6d ", frame_size);
648 /* compute pts value */
649 ti1 = ost->sync_opts * av_q2d(enc->time_base);
650 if (ti1 < 0.01)
651 ti1 = 0.01;
652
7636c8c6 653 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
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654 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
655 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 656 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
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657 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
658 }
659}
660
c1ef30a6 661/*
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662 * Read one frame for lavfi output for ost and encode it.
663 */
664static int poll_filter(OutputStream *ost)
560f7774 665{
a4f50110 666 OutputFile *of = output_files[ost->file_index];
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667 AVFilterBufferRef *picref;
668 AVFrame *filtered_frame = NULL;
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669 int frame_size, ret;
670
671 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
672 return AVERROR(ENOMEM);
673 } else
674 avcodec_get_frame_defaults(ost->filtered_frame);
675 filtered_frame = ost->filtered_frame;
676
677 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
678 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
679 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
680 ost->st->codec->frame_size);
681 else
682 ret = av_buffersink_read(ost->filter->filter, &picref);
369cb092 683
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684 if (ret < 0)
685 return ret;
560f7774 686
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687 avfilter_copy_buf_props(filtered_frame, picref);
688 if (picref->pts != AV_NOPTS_VALUE) {
689 filtered_frame->pts = av_rescale_q(picref->pts,
690 ost->filter->filter->inputs[0]->time_base,
691 ost->st->codec->time_base) -
692 av_rescale_q(of->start_time,
693 AV_TIME_BASE_Q,
694 ost->st->codec->time_base);
560f7774 695
a4f50110 696 if (of->start_time && filtered_frame->pts < 0) {
560f7774 697 avfilter_unref_buffer(picref);
a4f50110 698 return 0;
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699 }
700 }
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701
702 switch (ost->filter->filter->inputs[0]->type) {
703 case AVMEDIA_TYPE_VIDEO:
704 if (!ost->frame_aspect_ratio)
705 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
706
fb722a90 707 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
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708 if (vstats_filename && frame_size)
709 do_video_stats(of->ctx, ost, frame_size);
710 break;
711 case AVMEDIA_TYPE_AUDIO:
712 do_audio_out(of->ctx, ost, filtered_frame);
713 break;
714 default:
715 // TODO support subtitle filters
716 av_assert0(0);
717 }
718
719 avfilter_unref_buffer(picref);
720
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721 return 0;
722}
723
c1ef30a6 724/*
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725 * Read as many frames from possible from lavfi and encode them.
726 *
727 * Always read from the active stream with the lowest timestamp. If no frames
728 * are available for it then return EAGAIN and wait for more input. This way we
729 * can use lavfi sources that generate unlimited amount of frames without memory
730 * usage exploding.
731 */
732static int poll_filters(void)
733{
3c0df905 734 int i, j, ret = 0;
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735
736 while (ret >= 0 && !received_sigterm) {
737 OutputStream *ost = NULL;
738 int64_t min_pts = INT64_MAX;
739
740 /* choose output stream with the lowest timestamp */
741 for (i = 0; i < nb_output_streams; i++) {
742 int64_t pts = output_streams[i]->sync_opts;
743
57d24225 744 if (!output_streams[i]->filter || output_streams[i]->finished)
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745 continue;
746
747 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
748 AV_TIME_BASE_Q);
749 if (pts < min_pts) {
750 min_pts = pts;
751 ost = output_streams[i];
752 }
753 }
754
755 if (!ost)
756 break;
757
758 ret = poll_filter(ost);
759
760 if (ret == AVERROR_EOF) {
3c0df905
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761 OutputFile *of = output_files[ost->file_index];
762
57d24225 763 ost->finished = 1;
a4f50110 764
3c0df905
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765 if (of->shortest) {
766 for (j = 0; j < of->ctx->nb_streams; j++)
767 output_streams[of->ost_index + j]->finished = 1;
768 }
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769
770 ret = 0;
771 } else if (ret == AVERROR(EAGAIN))
772 return 0;
773 }
774
775 return ret;
776}
777
ea9367e9 778static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
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779{
780 char buf[1024];
781 OutputStream *ost;
782 AVFormatContext *oc;
783 int64_t total_size;
784 AVCodecContext *enc;
785 int frame_number, vid, i;
786 double bitrate, ti1, pts;
787 static int64_t last_time = -1;
788 static int qp_histogram[52];
789
3460dd8a
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790 if (!print_stats && !is_last_report)
791 return;
792
6291d7e4
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793 if (!is_last_report) {
794 int64_t cur_time;
795 /* display the report every 0.5 seconds */
796 cur_time = av_gettime();
797 if (last_time == -1) {
798 last_time = cur_time;
799 return;
800 }
801 if ((cur_time - last_time) < 500000)
802 return;
803 last_time = cur_time;
804 }
805
806
2e215267 807 oc = output_files[0]->ctx;
6291d7e4
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808
809 total_size = avio_size(oc->pb);
7636c8c6
AD
810 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
811 total_size = avio_tell(oc->pb);
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812
813 buf[0] = '\0';
814 ti1 = 1e10;
815 vid = 0;
ea9367e9 816 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 817 float q = -1;
2e215267 818 ost = output_streams[i];
6291d7e4 819 enc = ost->st->codec;
3d813e4c 820 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 821 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
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822 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
823 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
824 }
825 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 826 float t = (av_gettime() - timer_start) / 1000000.0;
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827
828 frame_number = ost->frame_number;
829 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
830 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
831 if (is_last_report)
6291d7e4 832 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 833 if (qp_hist) {
6291d7e4
AK
834 int j;
835 int qp = lrintf(q);
7636c8c6 836 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 837 qp_histogram[qp]++;
7636c8c6 838 for (j = 0; j < 32; j++)
d752509b 839 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 840 }
7636c8c6 841 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 842 int j;
7636c8c6
AD
843 double error, error_sum = 0;
844 double scale, scale_sum = 0;
845 char type[3] = { 'Y','U','V' };
6291d7e4 846 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
847 for (j = 0; j < 3; j++) {
848 if (is_last_report) {
849 error = enc->error[j];
850 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
851 } else {
852 error = enc->coded_frame->error[j];
853 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 854 }
7636c8c6
AD
855 if (j)
856 scale /= 4;
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857 error_sum += error;
858 scale_sum += scale;
7636c8c6 859 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 860 }
7636c8c6 861 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
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862 }
863 vid = 1;
864 }
865 /* compute min output value */
866 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
867 if ((pts < ti1) && (pts > 0))
868 ti1 = pts;
869 }
870 if (ti1 < 0.01)
871 ti1 = 0.01;
872
e3245b26 873 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 874
e3245b26 875 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
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876 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
877 (double)total_size / 1024, ti1, bitrate);
878
e3245b26
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879 if (nb_frames_dup || nb_frames_drop)
880 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
881 nb_frames_dup, nb_frames_drop);
6291d7e4 882
f5646a32 883 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 884
e3245b26 885 fflush(stderr);
6291d7e4 886
e3245b26 887 if (is_last_report) {
6291d7e4 888 int64_t raw= audio_size + video_size + extra_size;
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889 av_log(NULL, AV_LOG_INFO, "\n");
890 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
891 video_size / 1024.0,
892 audio_size / 1024.0,
893 extra_size / 1024.0,
894 100.0 * (total_size - raw) / raw
6291d7e4
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895 );
896 }
897}
898
ea9367e9 899static void flush_encoders(void)
4a4ce2e7
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900{
901 int i, ret;
902
ea9367e9 903 for (i = 0; i < nb_output_streams; i++) {
2e215267 904 OutputStream *ost = output_streams[i];
6f1c66d5 905 AVCodecContext *enc = ost->st->codec;
2e215267 906 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 907 int stop_encoding = 0;
6f1c66d5 908
b62b5cb6 909 if (!ost->encoding_needed)
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910 continue;
911
7636c8c6 912 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 913 continue;
36ef5369 914 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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915 continue;
916
7636c8c6 917 for (;;) {
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918 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
919 const char *desc;
920 int64_t *size;
6f1c66d5
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921
922 switch (ost->st->codec->codec_type) {
923 case AVMEDIA_TYPE_AUDIO:
369cb092
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924 encode = avcodec_encode_audio2;
925 desc = "Audio";
926 size = &audio_size;
6f1c66d5
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927 break;
928 case AVMEDIA_TYPE_VIDEO:
369cb092
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929 encode = avcodec_encode_video2;
930 desc = "Video";
931 size = &video_size;
932 break;
933 default:
934 stop_encoding = 1;
935 }
936
937 if (encode) {
938 AVPacket pkt;
939 int got_packet;
940 av_init_packet(&pkt);
941 pkt.data = NULL;
942 pkt.size = 0;
943
944 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 945 if (ret < 0) {
369cb092 946 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
5e3f9979 947 exit(1);
6f1c66d5 948 }
369cb092 949 *size += ret;
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950 if (ost->logfile && enc->stats_out) {
951 fprintf(ost->logfile, "%s", enc->stats_out);
952 }
8e37038a 953 if (!got_packet) {
ee458cb1
JR
954 stop_encoding = 1;
955 break;
956 }
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957 if (pkt.pts != AV_NOPTS_VALUE)
958 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
959 if (pkt.dts != AV_NOPTS_VALUE)
960 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1 961 write_frame(os, &pkt, ost);
4a4ce2e7 962 }
369cb092 963
ee458cb1 964 if (stop_encoding)
6f1c66d5 965 break;
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966 }
967 }
968}
969
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970/*
971 * Check whether a packet from ist should be written into ost at this time
972 */
973static int check_output_constraints(InputStream *ist, OutputStream *ost)
974{
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975 OutputFile *of = output_files[ost->file_index];
976 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
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977
978 if (ost->source_index != ist_index)
979 return 0;
980
23576b3f 981 if (of->start_time && ist->last_dts < of->start_time)
7204ec1a
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982 return 0;
983
7204ec1a
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984 return 1;
985}
986
987static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
988{
2e215267 989 OutputFile *of = output_files[ost->file_index];
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990 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
991 AVPacket opkt;
992
993 av_init_packet(&opkt);
994
995 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
996 !ost->copy_initial_nonkeyframes)
997 return;
998
1270e12e 999 if (of->recording_time != INT64_MAX &&
23576b3f 1000 ist->last_dts >= of->recording_time + of->start_time) {
57d24225 1001 ost->finished = 1;
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1002 return;
1003 }
1004
7204ec1a
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1005 /* force the input stream PTS */
1006 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1007 audio_size += pkt->size;
1008 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1009 video_size += pkt->size;
1010 ost->sync_opts++;
1011 }
1012
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1013 if (pkt->pts != AV_NOPTS_VALUE)
1014 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1015 else
1016 opkt.pts = AV_NOPTS_VALUE;
1017
1018 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1019 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
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1020 else
1021 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1022 opkt.dts -= ost_tb_start_time;
1023
1024 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1025 opkt.flags = pkt->flags;
1026
7636c8c6 1027 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
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1028 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1029 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1030 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1031 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
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1032 ) {
1033 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1034 opkt.destruct = av_destruct_packet;
1035 } else {
1036 opkt.data = pkt->data;
1037 opkt.size = pkt->size;
1038 }
1039
f15f02c2 1040 write_frame(of->ctx, &opkt, ost);
7204ec1a 1041 ost->st->codec->frame_number++;
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1042 av_free_packet(&opkt);
1043}
1044
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1045static void rate_emu_sleep(InputStream *ist)
1046{
2e215267 1047 if (input_files[ist->file_index]->rate_emu) {
23576b3f 1048 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
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1049 int64_t now = av_gettime() - ist->start;
1050 if (pts > now)
896bb0d7 1051 av_usleep(pts - now);
2a651b71
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1052 }
1053}
1054
f5e66827 1055int guess_input_channel_layout(InputStream *ist)
369cb092
AK
1056{
1057 AVCodecContext *dec = ist->st->codec;
1058
1059 if (!dec->channel_layout) {
1060 char layout_name[256];
1061
1062 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1063 if (!dec->channel_layout)
1064 return 0;
1065 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1066 dec->channels, dec->channel_layout);
1067 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1068 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1069 }
1070 return 1;
1071}
1072
0629f612 1073static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1074{
d1241ff3
JR
1075 AVFrame *decoded_frame;
1076 AVCodecContext *avctx = ist->st->codec;
ded28ba3 1077 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
369cb092 1078 int i, ret, resample_changed;
ded28ba3 1079
9179f27c 1080 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1081 return AVERROR(ENOMEM);
9179f27c 1082 decoded_frame = ist->decoded_frame;
ded28ba3 1083
d1241ff3 1084 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1085 if (!*got_output || ret < 0) {
1086 if (!pkt->size) {
369cb092
AK
1087 for (i = 0; i < ist->nb_filters; i++)
1088 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
f154ef1a 1089 }
af8ad892 1090 return ret;
ded28ba3
AK
1091 }
1092
d1241ff3
JR
1093 /* if the decoder provides a pts, use it instead of the last packet pts.
1094 the decoder could be delaying output by a packet or more. */
1095 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1096 ist->next_dts = decoded_frame->pts;
369cb092
AK
1097 else if (pkt->pts != AV_NOPTS_VALUE) {
1098 decoded_frame->pts = pkt->pts;
1099 pkt->pts = AV_NOPTS_VALUE;
1100 }
ded28ba3
AK
1101
1102 // preprocess audio (volume)
1103 if (audio_volume != 256) {
d1241ff3
JR
1104 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1105 void *samples = decoded_frame->data[0];
1106 switch (avctx->sample_fmt) {
ded28ba3
AK
1107 case AV_SAMPLE_FMT_U8:
1108 {
1109 uint8_t *volp = samples;
1110 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1111 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1112 *volp++ = av_clip_uint8(v);
1113 }
1114 break;
1115 }
1116 case AV_SAMPLE_FMT_S16:
1117 {
1118 int16_t *volp = samples;
1119 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1120 int v = ((*volp) * audio_volume + 128) >> 8;
1121 *volp++ = av_clip_int16(v);
1122 }
1123 break;
1124 }
1125 case AV_SAMPLE_FMT_S32:
1126 {
1127 int32_t *volp = samples;
1128 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1129 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1130 *volp++ = av_clipl_int32(v);
1131 }
1132 break;
1133 }
1134 case AV_SAMPLE_FMT_FLT:
1135 {
1136 float *volp = samples;
1137 float scale = audio_volume / 256.f;
1138 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1139 *volp++ *= scale;
1140 }
1141 break;
1142 }
1143 case AV_SAMPLE_FMT_DBL:
1144 {
1145 double *volp = samples;
1146 double scale = audio_volume / 256.;
1147 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1148 *volp++ *= scale;
1149 }
1150 break;
1151 }
1152 default:
1153 av_log(NULL, AV_LOG_FATAL,
1154 "Audio volume adjustment on sample format %s is not supported.\n",
1155 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
5e3f9979 1156 exit(1);
ded28ba3
AK
1157 }
1158 }
1159
1160 rate_emu_sleep(ist);
1161
369cb092
AK
1162 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1163 ist->resample_channels != avctx->channels ||
1164 ist->resample_channel_layout != decoded_frame->channel_layout ||
1165 ist->resample_sample_rate != decoded_frame->sample_rate;
1166 if (resample_changed) {
1167 char layout1[64], layout2[64];
ded28ba3 1168
369cb092
AK
1169 if (!guess_input_channel_layout(ist)) {
1170 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1171 "layout for Input Stream #%d.%d\n", ist->file_index,
1172 ist->st->index);
5e3f9979 1173 exit(1);
369cb092
AK
1174 }
1175 decoded_frame->channel_layout = avctx->channel_layout;
1176
1177 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1178 ist->resample_channel_layout);
1179 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1180 decoded_frame->channel_layout);
1181
1182 av_log(NULL, AV_LOG_INFO,
1183 "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",
1184 ist->file_index, ist->st->index,
1185 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1186 ist->resample_channels, layout1,
1187 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1188 avctx->channels, layout2);
1189
1190 ist->resample_sample_fmt = decoded_frame->format;
1191 ist->resample_sample_rate = decoded_frame->sample_rate;
1192 ist->resample_channel_layout = decoded_frame->channel_layout;
1193 ist->resample_channels = avctx->channels;
1194
1195 for (i = 0; i < nb_filtergraphs; i++)
1196 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1197 configure_filtergraph(filtergraphs[i]) < 0) {
1198 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
5e3f9979 1199 exit(1);
369cb092 1200 }
ded28ba3 1201 }
110d2af2 1202
715129cd
MS
1203 if (decoded_frame->pts != AV_NOPTS_VALUE)
1204 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1205 ist->st->time_base,
1206 (AVRational){1, ist->st->codec->sample_rate});
369cb092
AK
1207 for (i = 0; i < ist->nb_filters; i++)
1208 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
1209
af8ad892 1210 return ret;
ded28ba3
AK
1211}
1212
0629f612 1213static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1214{
560f7774 1215 AVFrame *decoded_frame;
45d4b66f 1216 void *buffer_to_free = NULL;
e77c8662 1217 int i, ret = 0, resample_changed;
45d4b66f 1218
9179f27c 1219 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
45d4b66f 1220 return AVERROR(ENOMEM);
9179f27c 1221 decoded_frame = ist->decoded_frame;
45d4b66f
AK
1222
1223 ret = avcodec_decode_video2(ist->st->codec,
1224 decoded_frame, got_output, pkt);
f154ef1a
AK
1225 if (!*got_output || ret < 0) {
1226 if (!pkt->size) {
89605e4a
AK
1227 for (i = 0; i < ist->nb_filters; i++)
1228 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
f154ef1a 1229 }
af8ad892 1230 return ret;
45d4b66f 1231 }
f154ef1a 1232
b34856a1
AK
1233 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1234 decoded_frame->pkt_dts);
45d4b66f
AK
1235 pkt->size = 0;
1236 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1237
1238 rate_emu_sleep(ist);
1239
695ec04e
AK
1240 if (ist->st->sample_aspect_ratio.num)
1241 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1242
e77c8662
AK
1243 resample_changed = ist->resample_width != decoded_frame->width ||
1244 ist->resample_height != decoded_frame->height ||
1245 ist->resample_pix_fmt != decoded_frame->format;
1246 if (resample_changed) {
1247 av_log(NULL, AV_LOG_INFO,
1248 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1249 ist->file_index, ist->st->index,
1250 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1251 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1252
2f34021d
JG
1253 ret = poll_filters();
1254 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1255 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1256
e77c8662
AK
1257 ist->resample_width = decoded_frame->width;
1258 ist->resample_height = decoded_frame->height;
1259 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1260
3b266da3
AK
1261 for (i = 0; i < nb_filtergraphs; i++)
1262 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1263 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1264 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
5e3f9979 1265 exit(1);
3b266da3
AK
1266 }
1267 }
ac646076 1268
3b266da3 1269 for (i = 0; i < ist->nb_filters; i++) {
04a14d4d
AK
1270 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1271 FrameBuffer *buf = decoded_frame->opaque;
1272 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1273 decoded_frame->data, decoded_frame->linesize,
1274 AV_PERM_READ | AV_PERM_PRESERVE,
1275 ist->st->codec->width, ist->st->codec->height,
1276 ist->st->codec->pix_fmt);
1277
1278 avfilter_copy_frame_props(fb, decoded_frame);
04a14d4d
AK
1279 fb->buf->priv = buf;
1280 fb->buf->free = filter_release_buffer;
1281
1282 buf->refcount++;
560f7774 1283 av_buffersrc_buffer(ist->filters[i]->filter, fb);
04a14d4d 1284 } else
720c6b78 1285 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
45d4b66f
AK
1286 }
1287
45d4b66f 1288 av_free(buffer_to_free);
45d4b66f
AK
1289 return ret;
1290}
1291
9595234c
AK
1292static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1293{
1294 AVSubtitle subtitle;
1295 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1296 &subtitle, got_output, pkt);
1297 if (ret < 0)
1298 return ret;
1299 if (!*got_output)
af8ad892 1300 return ret;
9595234c
AK
1301
1302 rate_emu_sleep(ist);
1303
1304 for (i = 0; i < nb_output_streams; i++) {
2e215267 1305 OutputStream *ost = output_streams[i];
9595234c
AK
1306
1307 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1308 continue;
1309
2e215267 1310 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1311 }
1312
1313 avsubtitle_free(&subtitle);
af8ad892 1314 return ret;
9595234c
AK
1315}
1316
6291d7e4 1317/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1318static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1319{
ffa0674e 1320 int i;
6291d7e4 1321 int got_output;
6291d7e4 1322 AVPacket avpkt;
6291d7e4 1323
3101bb66 1324 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1325 ist->next_dts = ist->last_dts;
6291d7e4
AK
1326
1327 if (pkt == NULL) {
1328 /* EOF handling */
1329 av_init_packet(&avpkt);
1330 avpkt.data = NULL;
1331 avpkt.size = 0;
1332 goto handle_eof;
1333 } else {
1334 avpkt = *pkt;
1335 }
1336
7636c8c6 1337 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1338 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1339
7636c8c6 1340 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1341 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1342 int ret = 0;
6291d7e4 1343 handle_eof:
6291d7e4 1344
23576b3f 1345 ist->last_dts = ist->next_dts;
8b0268a8
AK
1346
1347 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
1348 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1349 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1350 ist->showed_multi_packet_warning = 1;
1351 }
6291d7e4 1352
7636c8c6 1353 switch (ist->st->codec->codec_type) {
82963f8f 1354 case AVMEDIA_TYPE_AUDIO:
0629f612 1355 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1356 break;
1357 case AVMEDIA_TYPE_VIDEO:
0629f612 1358 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1359 if (avpkt.duration)
1360 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1361 else if (ist->st->avg_frame_rate.num)
82494835 1362 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1363 AV_TIME_BASE_Q);
b34856a1
AK
1364 else if (ist->st->codec->time_base.num != 0) {
1365 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1366 ist->st->codec->ticks_per_frame;
1367 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1368 }
82963f8f
AK
1369 break;
1370 case AVMEDIA_TYPE_SUBTITLE:
1371 ret = transcode_subtitles(ist, &avpkt, &got_output);
1372 break;
78162b4e
AK
1373 default:
1374 return -1;
1375 }
6291d7e4 1376
d3c1d37a
AK
1377 if (ret < 0)
1378 return ret;
aa38cff2
JG
1379 // touch data and size only if not EOF
1380 if (pkt) {
1381 avpkt.data += ret;
1382 avpkt.size -= ret;
1383 }
82963f8f 1384 if (!got_output) {
af8ad892 1385 continue;
82963f8f 1386 }
6291d7e4 1387 }
6291d7e4 1388
7204ec1a 1389 /* handle stream copy */
2a651b71
AK
1390 if (!ist->decoding_needed) {
1391 rate_emu_sleep(ist);
23576b3f 1392 ist->last_dts = ist->next_dts;
2a651b71
AK
1393 switch (ist->st->codec->codec_type) {
1394 case AVMEDIA_TYPE_AUDIO:
3101bb66 1395 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
1396 ist->st->codec->sample_rate;
1397 break;
1398 case AVMEDIA_TYPE_VIDEO:
1399 if (ist->st->codec->time_base.num != 0) {
7636c8c6 1400 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 1401 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
1402 ist->st->codec->time_base.num * ticks) /
1403 ist->st->codec->time_base.den;
1404 }
1405 break;
1406 }
1407 }
ea9367e9 1408 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1409 OutputStream *ost = output_streams[i];
7204ec1a
AK
1410
1411 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1412 continue;
1413
1414 do_streamcopy(ist, ost, pkt);
1415 }
1416
6291d7e4
AK
1417 return 0;
1418}
1419
ea9367e9 1420static void print_sdp(void)
6291d7e4
AK
1421{
1422 char sdp[2048];
af70aa45 1423 int i;
ea9367e9 1424 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1425
1426 if (!avc)
5e3f9979 1427 exit(1);
ea9367e9 1428 for (i = 0; i < nb_output_files; i++)
2e215267 1429 avc[i] = output_files[i]->ctx;
6291d7e4 1430
ea9367e9 1431 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1432 printf("SDP:\n%s\n", sdp);
1433 fflush(stdout);
af70aa45 1434 av_freep(&avc);
6291d7e4
AK
1435}
1436
ea9367e9 1437static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1438{
c854102d 1439 int i, ret;
2e215267 1440 InputStream *ist = input_streams[ist_index];
630902a1
AK
1441 if (ist->decoding_needed) {
1442 AVCodec *codec = ist->dec;
630902a1 1443 if (!codec) {
9a414d89 1444 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
1445 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1446 return AVERROR(EINVAL);
1447 }
1448
1449 /* update requested sample format for the decoder based on the
1450 corresponding encoder sample format */
1451 for (i = 0; i < nb_output_streams; i++) {
2e215267 1452 OutputStream *ost = output_streams[i];
630902a1
AK
1453 if (ost->source_index == ist_index) {
1454 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1455 break;
1456 }
1457 }
1458
64dca32c
AK
1459 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
1460 ist->st->codec->get_buffer = codec_get_buffer;
1461 ist->st->codec->release_buffer = codec_release_buffer;
3ffa2335 1462 ist->st->codec->opaque = &ist->buffer_pool;
64dca32c
AK
1463 }
1464
2473a45c
JG
1465 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1466 av_dict_set(&ist->opts, "threads", "auto", 0);
c854102d
NC
1467 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1468 if (ret == AVERROR_EXPERIMENTAL)
1469 abort_codec_experimental(codec, 0);
9a414d89 1470 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
630902a1 1471 ist->file_index, ist->st->index);
c854102d 1472 return ret;
630902a1 1473 }
630902a1
AK
1474 assert_avoptions(ist->opts);
1475 }
1476
23576b3f 1477 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 1478 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
1479 init_pts_correction(&ist->pts_ctx);
1480 ist->is_start = 1;
1481
1482 return 0;
1483}
1484
3b266da3
AK
1485static InputStream *get_input_stream(OutputStream *ost)
1486{
1487 if (ost->source_index >= 0)
1488 return input_streams[ost->source_index];
1489
1490 if (ost->filter) {
1491 FilterGraph *fg = ost->filter->graph;
1492 int i;
1493
1494 for (i = 0; i < fg->nb_inputs; i++)
1495 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1496 return fg->inputs[i]->ist;
1497 }
1498
1499 return NULL;
1500}
1501
19ad5673
AK
1502static void parse_forced_key_frames(char *kf, OutputStream *ost,
1503 AVCodecContext *avctx)
1504{
1505 char *p;
1506 int n = 1, i;
1507 int64_t t;
1508
1509 for (p = kf; *p; p++)
1510 if (*p == ',')
1511 n++;
1512 ost->forced_kf_count = n;
1513 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1514 if (!ost->forced_kf_pts) {
1515 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
5e3f9979 1516 exit(1);
19ad5673 1517 }
4c679750
RD
1518
1519 p = kf;
19ad5673 1520 for (i = 0; i < n; i++) {
4c679750
RD
1521 char *next = strchr(p, ',');
1522
1523 if (next)
1524 *next++ = 0;
1525
19ad5673
AK
1526 t = parse_time_or_die("force_key_frames", p, 1);
1527 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1528
1529 p = next;
19ad5673
AK
1530 }
1531}
1532
ea9367e9 1533static int transcode_init(void)
6291d7e4 1534{
2c474ddb 1535 int ret = 0, i, j, k;
1bb77e51 1536 AVFormatContext *oc;
a5fd7c60 1537 AVCodecContext *codec;
4288e031 1538 OutputStream *ost;
6291d7e4
AK
1539 InputStream *ist;
1540 char error[1024];
1541 int want_sdp = 1;
b0c9e8e0 1542
f4805328
AK
1543 /* init framerate emulation */
1544 for (i = 0; i < nb_input_files; i++) {
2e215267 1545 InputFile *ifile = input_files[i];
f4805328
AK
1546 if (ifile->rate_emu)
1547 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1548 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1549 }
6291d7e4
AK
1550
1551 /* output stream init */
03f30c83 1552 for (i = 0; i < nb_output_files; i++) {
2e215267 1553 oc = output_files[i]->ctx;
1bb77e51
AK
1554 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1555 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1556 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1557 return AVERROR(EINVAL);
6291d7e4 1558 }
6291d7e4
AK
1559 }
1560
3b266da3
AK
1561 /* init complex filtergraphs */
1562 for (i = 0; i < nb_filtergraphs; i++)
1563 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1564 return ret;
1565
6291d7e4 1566 /* for each output stream, we compute the right encoding parameters */
4288e031 1567 for (i = 0; i < nb_output_streams; i++) {
a5fd7c60 1568 AVCodecContext *icodec = NULL;
2e215267
AK
1569 ost = output_streams[i];
1570 oc = output_files[ost->file_index]->ctx;
3b266da3 1571 ist = get_input_stream(ost);
6291d7e4 1572
4dbc6cee
AK
1573 if (ost->attachment_filename)
1574 continue;
1575
03f30c83 1576 codec = ost->st->codec;
6291d7e4 1577
3b266da3
AK
1578 if (ist) {
1579 icodec = ist->st->codec;
1580
1581 ost->st->disposition = ist->st->disposition;
1582 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1583 codec->chroma_sample_location = icodec->chroma_sample_location;
1584 }
6291d7e4 1585
3d813e4c 1586 if (ost->stream_copy) {
8c4022ac
AK
1587 uint64_t extra_size;
1588
1589 av_assert0(ist && !ost->filter);
1590
1591 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1592
e6d2b737 1593 if (extra_size > INT_MAX) {
eaf2d37a 1594 return AVERROR(EINVAL);
e6d2b737 1595 }
6291d7e4
AK
1596
1597 /* if stream_copy is selected, no need to decode or encode */
03f30c83 1598 codec->codec_id = icodec->codec_id;
6291d7e4
AK
1599 codec->codec_type = icodec->codec_type;
1600
03f30c83
AK
1601 if (!codec->codec_tag) {
1602 if (!oc->oformat->codec_tag ||
1603 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1604 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
1605 codec->codec_tag = icodec->codec_tag;
1606 }
1607
03f30c83 1608 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
1609 codec->rc_max_rate = icodec->rc_max_rate;
1610 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 1611 codec->field_order = icodec->field_order;
03f30c83 1612 codec->extradata = av_mallocz(extra_size);
e6d2b737 1613 if (!codec->extradata) {
eaf2d37a 1614 return AVERROR(ENOMEM);
e6d2b737 1615 }
6291d7e4 1616 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 1617 codec->extradata_size = icodec->extradata_size;
7bb3e625 1618 if (!copy_tb) {
03f30c83 1619 codec->time_base = icodec->time_base;
6291d7e4
AK
1620 codec->time_base.num *= icodec->ticks_per_frame;
1621 av_reduce(&codec->time_base.num, &codec->time_base.den,
1622 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 1623 } else
6291d7e4 1624 codec->time_base = ist->st->time_base;
03f30c83 1625
7636c8c6 1626 switch (codec->codec_type) {
6291d7e4 1627 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1628 if (audio_volume != 256) {
e3245b26 1629 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
5e3f9979 1630 exit(1);
6291d7e4 1631 }
03f30c83
AK
1632 codec->channel_layout = icodec->channel_layout;
1633 codec->sample_rate = icodec->sample_rate;
1634 codec->channels = icodec->channels;
1635 codec->frame_size = icodec->frame_size;
6291d7e4 1636 codec->audio_service_type = icodec->audio_service_type;
03f30c83 1637 codec->block_align = icodec->block_align;
6291d7e4
AK
1638 break;
1639 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
1640 codec->pix_fmt = icodec->pix_fmt;
1641 codec->width = icodec->width;
1642 codec->height = icodec->height;
1643 codec->has_b_frames = icodec->has_b_frames;
6291d7e4 1644 if (!codec->sample_aspect_ratio.num) {
03f30c83 1645 codec->sample_aspect_ratio =
6291d7e4
AK
1646 ost->st->sample_aspect_ratio =
1647 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1648 ist->st->codec->sample_aspect_ratio.num ?
1649 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1650 }
1651 break;
1652 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 1653 codec->width = icodec->width;
6291d7e4
AK
1654 codec->height = icodec->height;
1655 break;
1656 case AVMEDIA_TYPE_DATA:
3ccd1580 1657 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1658 break;
1659 default:
1660 abort();
1661 }
1662 } else {
2994913d
AK
1663 if (!ost->enc) {
1664 /* should only happen when a default codec is not present. */
1665 snprintf(error, sizeof(error), "Automatic encoder selection "
1666 "failed for output stream #%d:%d. Default encoder for "
1667 "format %s is probably disabled. Please choose an "
1668 "encoder manually.\n", ost->file_index, ost->index,
1669 oc->oformat->name);
1670 ret = AVERROR(EINVAL);
1671 goto dump_format;
1672 }
03f30c83 1673
3b266da3
AK
1674 if (ist)
1675 ist->decoding_needed = 1;
11fdb7e1 1676 ost->encoding_needed = 1;
03f30c83 1677
74b961db
AK
1678 /*
1679 * We want CFR output if and only if one of those is true:
1680 * 1) user specified output framerate with -r
1681 * 2) user specified -vsync cfr
1682 * 3) output format is CFR and the user didn't force vsync to
1683 * something else than CFR
1684 *
1685 * in such a case, set ost->frame_rate
1686 */
1687 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1688 !ost->frame_rate.num && ist &&
1689 (video_sync_method == VSYNC_CFR ||
1690 (video_sync_method == VSYNC_AUTO &&
1691 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
44b0b85f
AK
1692 ost->frame_rate = ist->framerate.num ? ist->framerate :
1693 ist->st->avg_frame_rate.num ?
1694 ist->st->avg_frame_rate :
1695 (AVRational){25, 1};
1696
74b961db
AK
1697 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1698 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1699 ost->frame_rate = ost->enc->supported_framerates[idx];
1700 }
1701 }
1702
369cb092
AK
1703 if (!ost->filter &&
1704 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1705 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1706 FilterGraph *fg;
1707 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1708 if (configure_filtergraph(fg)) {
3b266da3
AK
1709 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1710 exit(1);
1711 }
369cb092 1712 }
3b266da3 1713
369cb092
AK
1714 switch (codec->codec_type) {
1715 case AVMEDIA_TYPE_AUDIO:
1716 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1717 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1718 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1719 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1720 codec->time_base = (AVRational){ 1, codec->sample_rate };
1721 break;
1722 case AVMEDIA_TYPE_VIDEO:
74b961db 1723 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1724
3b266da3
AK
1725 codec->width = ost->filter->filter->inputs[0]->w;
1726 codec->height = ost->filter->filter->inputs[0]->h;
1727 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1728 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1729 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1730 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1731 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1732
a5fd7c60
AK
1733 if (icodec &&
1734 (codec->width != icodec->width ||
1735 codec->height != icodec->height ||
1736 codec->pix_fmt != icodec->pix_fmt)) {
b7327887
AK
1737 codec->bits_per_raw_sample = 0;
1738 }
1739
19ad5673
AK
1740 if (ost->forced_keyframes)
1741 parse_forced_key_frames(ost->forced_keyframes, ost,
1742 ost->st->codec);
6291d7e4
AK
1743 break;
1744 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 1745 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
1746 break;
1747 default:
1748 abort();
1749 break;
1750 }
1751 /* two pass mode */
515901fa 1752 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1753 char logfilename[1024];
1754 FILE *f;
1755
1756 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1757 ost->logfile_prefix ? ost->logfile_prefix :
1758 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1759 i);
6e8be949
AK
1760 if (!strcmp(ost->enc->name, "libx264")) {
1761 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1762 } else {
64334ddb
AK
1763 if (codec->flags & CODEC_FLAG_PASS1) {
1764 f = fopen(logfilename, "wb");
1765 if (!f) {
1766 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1767 logfilename, strerror(errno));
5e3f9979 1768 exit(1);
64334ddb
AK
1769 }
1770 ost->logfile = f;
1771 } else {
1772 char *logbuffer;
1773 size_t logbuffer_size;
1774 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1775 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1776 logfilename);
5e3f9979 1777 exit(1);
64334ddb
AK
1778 }
1779 codec->stats_in = logbuffer;
6291d7e4 1780 }
6e8be949 1781 }
6291d7e4
AK
1782 }
1783 }
6291d7e4
AK
1784 }
1785
1786 /* open each encoder */
4288e031 1787 for (i = 0; i < nb_output_streams; i++) {
2e215267 1788 ost = output_streams[i];
6291d7e4 1789 if (ost->encoding_needed) {
03f30c83 1790 AVCodec *codec = ost->enc;
3b266da3 1791 AVCodecContext *dec = NULL;
3b266da3
AK
1792
1793 if ((ist = get_input_stream(ost)))
1794 dec = ist->st->codec;
1795 if (dec && dec->subtitle_header) {
6291d7e4
AK
1796 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1797 if (!ost->st->codec->subtitle_header) {
1798 ret = AVERROR(ENOMEM);
1799 goto dump_format;
1800 }
1801 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1802 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1803 }
2473a45c
JG
1804 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1805 av_dict_set(&ost->opts, "threads", "auto", 0);
c854102d
NC
1806 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1807 if (ret == AVERROR_EXPERIMENTAL)
1808 abort_codec_experimental(codec, 1);
9a414d89 1809 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 1810 ost->file_index, ost->index);
6291d7e4
AK
1811 goto dump_format;
1812 }
6291d7e4
AK
1813 assert_avoptions(ost->opts);
1814 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1815 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1816 "It takes bits/s as argument, not kbits/s\n");
1817 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
1818
1819 if (ost->st->codec->me_threshold)
2e215267 1820 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
6291d7e4
AK
1821 }
1822 }
1823
630902a1
AK
1824 /* init input streams */
1825 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1826 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1827 goto dump_format;
6291d7e4 1828
2c474ddb
AK
1829 /* discard unused programs */
1830 for (i = 0; i < nb_input_files; i++) {
2e215267 1831 InputFile *ifile = input_files[i];
2c474ddb
AK
1832 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1833 AVProgram *p = ifile->ctx->programs[j];
1834 int discard = AVDISCARD_ALL;
1835
1836 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1837 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1838 discard = AVDISCARD_DEFAULT;
1839 break;
1840 }
1841 p->discard = discard;
1842 }
1843 }
1844
6291d7e4 1845 /* open files and write file headers */
af70aa45 1846 for (i = 0; i < nb_output_files; i++) {
2e215267 1847 oc = output_files[i]->ctx;
1bb77e51 1848 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
1849 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1850 char errbuf[128];
1851 const char *errbuf_ptr = errbuf;
1852 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1853 errbuf_ptr = strerror(AVUNERROR(ret));
1854 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
6291d7e4
AK
1855 ret = AVERROR(EINVAL);
1856 goto dump_format;
1857 }
2e215267 1858 assert_avoptions(output_files[i]->opts);
1bb77e51 1859 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
1860 want_sdp = 0;
1861 }
1862 }
1863
1864 dump_format:
1865 /* dump the file output parameters - cannot be done before in case
1866 of stream copy */
03f30c83 1867 for (i = 0; i < nb_output_files; i++) {
2e215267 1868 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
1869 }
1870
1871 /* dump the stream mapping */
e3245b26 1872 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
1873 for (i = 0; i < nb_input_streams; i++) {
1874 ist = input_streams[i];
1875
1876 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
1877 if (ist->filters[j]->graph->graph_desc) {
1878 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1879 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 1880 ist->filters[j]->name);
3b266da3
AK
1881 if (nb_filtergraphs > 1)
1882 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1883 av_log(NULL, AV_LOG_INFO, "\n");
1884 }
1885 }
1886 }
1887
e3245b26 1888 for (i = 0; i < nb_output_streams; i++) {
2e215267 1889 ost = output_streams[i];
4dbc6cee
AK
1890
1891 if (ost->attachment_filename) {
1892 /* an attached file */
1893 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1894 ost->attachment_filename, ost->file_index, ost->index);
1895 continue;
1896 }
3b266da3
AK
1897
1898 if (ost->filter && ost->filter->graph->graph_desc) {
1899 /* output from a complex graph */
cf6c38c6 1900 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
1901 if (nb_filtergraphs > 1)
1902 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1903
1904 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1905 ost->index, ost->enc ? ost->enc->name : "?");
1906 continue;
1907 }
1908
9a414d89 1909 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
1910 input_streams[ost->source_index]->file_index,
1911 input_streams[ost->source_index]->st->index,
e3245b26
AK
1912 ost->file_index,
1913 ost->index);
2e215267 1914 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 1915 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
1916 ost->sync_ist->file_index,
1917 ost->sync_ist->st->index);
3d813e4c 1918 if (ost->stream_copy)
e3245b26
AK
1919 av_log(NULL, AV_LOG_INFO, " (copy)");
1920 else
2e215267
AK
1921 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1922 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
1923 ost->enc ? ost->enc->name : "?");
1924 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
1925 }
1926
1927 if (ret) {
e3245b26 1928 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 1929 return ret;
6291d7e4
AK
1930 }
1931
1932 if (want_sdp) {
ea9367e9 1933 print_sdp();
6291d7e4
AK
1934 }
1935
eaf2d37a
AC
1936 return 0;
1937}
1938
c1ef30a6 1939/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
1940static int need_output(void)
1941{
1942 int i;
1943
1944 for (i = 0; i < nb_output_streams; i++) {
1945 OutputStream *ost = output_streams[i];
1946 OutputFile *of = output_files[ost->file_index];
1947 AVFormatContext *os = output_files[ost->file_index]->ctx;
1948
57d24225 1949 if (ost->finished ||
2f51ec2b
AK
1950 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1951 continue;
e58b75f7 1952 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
1953 int j;
1954 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 1955 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
1956 continue;
1957 }
1958
1959 return 1;
1960 }
1961
1962 return 0;
1963}
1964
83916029 1965static InputFile *select_input_file(void)
a508e7a1 1966{
83916029 1967 InputFile *ifile = NULL;
a508e7a1 1968 int64_t ipts_min = INT64_MAX;
83916029 1969 int i;
a508e7a1
AK
1970
1971 for (i = 0; i < nb_input_streams; i++) {
1972 InputStream *ist = input_streams[i];
1973 int64_t ipts = ist->last_dts;
1974
0b26ef42 1975 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
1976 continue;
1977 if (!input_files[ist->file_index]->eof_reached) {
1978 if (ipts < ipts_min) {
1979 ipts_min = ipts;
83916029 1980 ifile = input_files[ist->file_index];
a508e7a1
AK
1981 }
1982 }
1983 }
1984
83916029 1985 return ifile;
a508e7a1
AK
1986}
1987
47b812e9 1988#if HAVE_PTHREADS
5db5169e
AK
1989static void *input_thread(void *arg)
1990{
1991 InputFile *f = arg;
1992 int ret = 0;
1993
1994 while (!transcoding_finished && ret >= 0) {
1995 AVPacket pkt;
1996 ret = av_read_frame(f->ctx, &pkt);
1997
1998 if (ret == AVERROR(EAGAIN)) {
896bb0d7 1999 av_usleep(10000);
5db5169e
AK
2000 ret = 0;
2001 continue;
2002 } else if (ret < 0)
2003 break;
2004
2005 pthread_mutex_lock(&f->fifo_lock);
2006 while (!av_fifo_space(f->fifo))
2007 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2008
2009 av_dup_packet(&pkt);
2010 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2011
2012 pthread_mutex_unlock(&f->fifo_lock);
2013 }
2014
2015 f->finished = 1;
2016 return NULL;
2017}
2018
2019static void free_input_threads(void)
2020{
2021 int i;
2022
2023 if (nb_input_files == 1)
2024 return;
2025
2026 transcoding_finished = 1;
2027
2028 for (i = 0; i < nb_input_files; i++) {
2029 InputFile *f = input_files[i];
2030 AVPacket pkt;
2031
9034b0ed 2032 if (!f->fifo || f->joined)
5db5169e
AK
2033 continue;
2034
2035 pthread_mutex_lock(&f->fifo_lock);
2036 while (av_fifo_size(f->fifo)) {
2037 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2038 av_free_packet(&pkt);
2039 }
2040 pthread_cond_signal(&f->fifo_cond);
2041 pthread_mutex_unlock(&f->fifo_lock);
2042
2043 pthread_join(f->thread, NULL);
2044 f->joined = 1;
2045
2046 while (av_fifo_size(f->fifo)) {
2047 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2048 av_free_packet(&pkt);
2049 }
2050 av_fifo_free(f->fifo);
2051 }
2052}
2053
2054static int init_input_threads(void)
2055{
2056 int i, ret;
2057
2058 if (nb_input_files == 1)
2059 return 0;
2060
2061 for (i = 0; i < nb_input_files; i++) {
2062 InputFile *f = input_files[i];
2063
2064 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2065 return AVERROR(ENOMEM);
2066
2067 pthread_mutex_init(&f->fifo_lock, NULL);
2068 pthread_cond_init (&f->fifo_cond, NULL);
2069
2070 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2071 return AVERROR(ret);
2072 }
2073 return 0;
2074}
2075
2076static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2077{
2078 int ret = 0;
2079
2080 pthread_mutex_lock(&f->fifo_lock);
2081
2082 if (av_fifo_size(f->fifo)) {
2083 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2084 pthread_cond_signal(&f->fifo_cond);
2085 } else {
2086 if (f->finished)
2087 ret = AVERROR_EOF;
2088 else
2089 ret = AVERROR(EAGAIN);
2090 }
2091
2092 pthread_mutex_unlock(&f->fifo_lock);
2093
2094 return ret;
2095}
2096#endif
2097
2098static int get_input_packet(InputFile *f, AVPacket *pkt)
2099{
47b812e9 2100#if HAVE_PTHREADS
5db5169e
AK
2101 if (nb_input_files > 1)
2102 return get_input_packet_mt(f, pkt);
2103#endif
2104 return av_read_frame(f->ctx, pkt);
2105}
2106
0b26ef42
AK
2107static int got_eagain(void)
2108{
2109 int i;
2110 for (i = 0; i < nb_input_files; i++)
2111 if (input_files[i]->eagain)
2112 return 1;
2113 return 0;
2114}
2115
2116static void reset_eagain(void)
2117{
2118 int i;
2119 for (i = 0; i < nb_input_files; i++)
2120 input_files[i]->eagain = 0;
2121}
2122
c1ef30a6 2123/*
0c00fd80
AK
2124 * Read one packet from an input file and send it for
2125 * - decoding -> lavfi (audio/video)
2126 * - decoding -> encoding -> muxing (subtitles)
2127 * - muxing (streamcopy)
2128 *
c1ef30a6 2129 * Return
0c00fd80
AK
2130 * - 0 -- one packet was read and processed
2131 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2132 * this function should be called again
2133 * - AVERROR_EOF -- this function should not be called again
2134 */
2135static int process_input(void)
2136{
2137 InputFile *ifile;
2138 AVFormatContext *is;
2139 InputStream *ist;
2140 AVPacket pkt;
2141 int ret, i, j;
2142
2143 /* select the stream that we must read now */
2144 ifile = select_input_file();
2145 /* if none, if is finished */
2146 if (!ifile) {
2147 if (got_eagain()) {
2148 reset_eagain();
2149 av_usleep(10000);
2150 return AVERROR(EAGAIN);
2151 }
2152 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2153 return AVERROR_EOF;
2154 }
2155
2156 is = ifile->ctx;
2157 ret = get_input_packet(ifile, &pkt);
2158
2159 if (ret == AVERROR(EAGAIN)) {
2160 ifile->eagain = 1;
2161 return ret;
2162 }
2163 if (ret < 0) {
2164 if (ret != AVERROR_EOF) {
2165 print_error(is->filename, ret);
2166 if (exit_on_error)
5e3f9979 2167 exit(1);
0c00fd80
AK
2168 }
2169 ifile->eof_reached = 1;
2170
2171 for (i = 0; i < ifile->nb_streams; i++) {
2172 ist = input_streams[ifile->ist_index + i];
2173 if (ist->decoding_needed)
2174 output_packet(ist, NULL);
2175
2176 /* mark all outputs that don't go through lavfi as finished */
2177 for (j = 0; j < nb_output_streams; j++) {
2178 OutputStream *ost = output_streams[j];
2179
2180 if (ost->source_index == ifile->ist_index + i &&
2181 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2182 ost->finished= 1;
0c00fd80
AK
2183 }
2184 }
2185
3c0df905 2186 return AVERROR(EAGAIN);
0c00fd80
AK
2187 }
2188
2189 reset_eagain();
2190
2191 if (do_pkt_dump) {
2192 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2193 is->streams[pkt.stream_index]);
2194 }
2195 /* the following test is needed in case new streams appear
2196 dynamically in stream : we ignore them */
2197 if (pkt.stream_index >= ifile->nb_streams)
2198 goto discard_packet;
2199
2200 ist = input_streams[ifile->ist_index + pkt.stream_index];
2201 if (ist->discard)
2202 goto discard_packet;
2203
2204 if (pkt.dts != AV_NOPTS_VALUE)
2205 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2206 if (pkt.pts != AV_NOPTS_VALUE)
2207 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2208
2209 if (pkt.pts != AV_NOPTS_VALUE)
2210 pkt.pts *= ist->ts_scale;
2211 if (pkt.dts != AV_NOPTS_VALUE)
2212 pkt.dts *= ist->ts_scale;
2213
2214 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2215 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2216 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2217 int64_t delta = pkt_dts - ist->next_dts;
2218
2219 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2220 ifile->ts_offset -= delta;
2221 av_log(NULL, AV_LOG_DEBUG,
2222 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2223 delta, ifile->ts_offset);
2224 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2225 if (pkt.pts != AV_NOPTS_VALUE)
2226 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2227 }
2228 }
2229
2230 ret = output_packet(ist, &pkt);
2231 if (ret < 0) {
2232 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2233 ist->file_index, ist->st->index);
2234 if (exit_on_error)
5e3f9979 2235 exit(1);
0c00fd80
AK
2236 }
2237
2238discard_packet:
2239 av_free_packet(&pkt);
2240
2241 return 0;
2242}
2243
eaf2d37a
AC
2244/*
2245 * The following code is the main loop of the file converter
2246 */
ea9367e9 2247static int transcode(void)
eaf2d37a 2248{
0c00fd80
AK
2249 int ret, i, need_input = 1;
2250 AVFormatContext *os;
eaf2d37a
AC
2251 OutputStream *ost;
2252 InputStream *ist;
eaf2d37a
AC
2253 int64_t timer_start;
2254
ea9367e9 2255 ret = transcode_init();
eaf2d37a
AC
2256 if (ret < 0)
2257 goto fail;
2258
e3245b26 2259 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2260 term_init();
2261
2262 timer_start = av_gettime();
2263
47b812e9 2264#if HAVE_PTHREADS
5db5169e
AK
2265 if ((ret = init_input_threads()) < 0)
2266 goto fail;
2267#endif
2268
c0fbf971 2269 while (!received_sigterm) {
3b266da3 2270 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2271 if (!need_output()) {
2272 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2273 break;
2f51ec2b 2274 }
3b266da3 2275
0c00fd80
AK
2276 /* read and process one input packet if needed */
2277 if (need_input) {
2278 ret = process_input();
2279 if (ret == AVERROR_EOF)
2280 need_input = 0;
6291d7e4
AK
2281 }
2282
0c00fd80 2283 ret = poll_filters();
6291d7e4 2284 if (ret < 0) {
0c00fd80 2285 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2286 continue;
6291d7e4 2287
0c00fd80
AK
2288 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2289 break;
6291d7e4
AK
2290 }
2291
6291d7e4 2292 /* dump report by using the output first video and audio streams */
ea9367e9 2293 print_report(0, timer_start);
6291d7e4 2294 }
47b812e9 2295#if HAVE_PTHREADS
5db5169e
AK
2296 free_input_threads();
2297#endif
6291d7e4
AK
2298
2299 /* at the end of stream, we must flush the decoder buffers */
2300 for (i = 0; i < nb_input_streams; i++) {
2e215267 2301 ist = input_streams[i];
9e8aae44 2302 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2303 output_packet(ist, NULL);
6291d7e4
AK
2304 }
2305 }
560f7774 2306 poll_filters();
ea9367e9 2307 flush_encoders();
6291d7e4
AK
2308
2309 term_exit();
2310
2311 /* write the trailer if needed and close file */
7636c8c6 2312 for (i = 0; i < nb_output_files; i++) {
2e215267 2313 os = output_files[i]->ctx;
6291d7e4
AK
2314 av_write_trailer(os);
2315 }
2316
2317 /* dump report by using the first video and audio streams */
ea9367e9 2318 print_report(1, timer_start);
6291d7e4
AK
2319
2320 /* close each encoder */
4288e031 2321 for (i = 0; i < nb_output_streams; i++) {
2e215267 2322 ost = output_streams[i];
6291d7e4
AK
2323 if (ost->encoding_needed) {
2324 av_freep(&ost->st->codec->stats_in);
2325 avcodec_close(ost->st->codec);
2326 }
6291d7e4
AK
2327 }
2328
2329 /* close each decoder */
2330 for (i = 0; i < nb_input_streams; i++) {
2e215267 2331 ist = input_streams[i];
6291d7e4
AK
2332 if (ist->decoding_needed) {
2333 avcodec_close(ist->st->codec);
2334 }
2335 }
2336
2337 /* finished ! */
2338 ret = 0;
2339
2340 fail:
47b812e9 2341#if HAVE_PTHREADS
5db5169e
AK
2342 free_input_threads();
2343#endif
6291d7e4 2344
4288e031
AK
2345 if (output_streams) {
2346 for (i = 0; i < nb_output_streams; i++) {
2e215267 2347 ost = output_streams[i];
6291d7e4 2348 if (ost) {
3d813e4c 2349 if (ost->stream_copy)
6291d7e4
AK
2350 av_freep(&ost->st->codec->extradata);
2351 if (ost->logfile) {
2352 fclose(ost->logfile);
2353 ost->logfile = NULL;
2354 }
6291d7e4 2355 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2356 av_free(ost->forced_kf_pts);
6291d7e4 2357 av_dict_free(&ost->opts);
6291d7e4
AK
2358 }
2359 }
6291d7e4
AK
2360 }
2361 return ret;
2362}
2363
f5e66827 2364static int64_t getutime(void)
a2c0b830 2365{
f5e66827
AK
2366#if HAVE_GETRUSAGE
2367 struct rusage rusage;
a2c0b830 2368
f5e66827
AK
2369 getrusage(RUSAGE_SELF, &rusage);
2370 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2371#elif HAVE_GETPROCESSTIMES
2372 HANDLE proc;
2373 FILETIME c, e, k, u;
2374 proc = GetCurrentProcess();
2375 GetProcessTimes(proc, &c, &e, &k, &u);
2376 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2377#else
2378 return av_gettime();
2379#endif
a2c0b830
AK
2380}
2381
f5e66827 2382static int64_t getmaxrss(void)
6291d7e4 2383{
f5e66827
AK
2384#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2385 struct rusage rusage;
2386 getrusage(RUSAGE_SELF, &rusage);
2387 return (int64_t)rusage.ru_maxrss * 1024;
2388#elif HAVE_GETPROCESSMEMORYINFO
2389 HANDLE proc;
2390 PROCESS_MEMORY_COUNTERS memcounters;
2391 proc = GetCurrentProcess();
2392 memcounters.cb = sizeof(memcounters);
2393 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2394 return memcounters.PeakPagefileUsage;
2395#else
6291d7e4 2396 return 0;
f5e66827 2397#endif
6291d7e4
AK
2398}
2399
f5e66827 2400static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3ec34462 2401{
f5e66827
AK
2402 int idx = locate_option(argc, argv, options, "cpuflags");
2403 if (idx && argv[idx + 1])
11d957fb 2404 opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
3ec34462
AK
2405}
2406
6291d7e4
AK
2407int main(int argc, char **argv)
2408{
575ec4e1 2409 OptionsContext o = { 0 };
6291d7e4
AK
2410 int64_t ti;
2411
5e3f9979
DEP
2412 atexit(exit_program);
2413
575ec4e1
AK
2414 reset_options(&o);
2415
6291d7e4 2416 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2417 parse_loglevel(argc, argv, options);
6291d7e4
AK
2418
2419 avcodec_register_all();
2420#if CONFIG_AVDEVICE
2421 avdevice_register_all();
2422#endif
6291d7e4 2423 avfilter_register_all();
6291d7e4 2424 av_register_all();
776f2bb9 2425 avformat_network_init();
6291d7e4 2426
6291d7e4
AK
2427 show_banner();
2428
4138cd29
AK
2429 parse_cpuflags(argc, argv, options);
2430
6291d7e4 2431 /* parse options */
575ec4e1 2432 parse_options(&o, argc, argv, options, opt_output_file);
6291d7e4 2433
7636c8c6 2434 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2435 show_usage();
e3245b26 2436 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
5e3f9979 2437 exit(1);
6291d7e4
AK
2438 }
2439
2440 /* file converter / grab */
2441 if (nb_output_files <= 0) {
2442 fprintf(stderr, "At least one output file must be specified\n");
5e3f9979 2443 exit(1);
6291d7e4
AK
2444 }
2445
6291d7e4 2446 ti = getutime();
ea9367e9 2447 if (transcode() < 0)
5e3f9979 2448 exit(1);
6291d7e4
AK
2449 ti = getutime() - ti;
2450 if (do_benchmark) {
2451 int maxrss = getmaxrss() / 1024;
2452 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2453 }
2454
5e3f9979 2455 exit(0);
dad09ff9 2456 return 0;
6291d7e4 2457}