avconv: make input -ss accurate when transcoding
[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"
a903f8f0 35#include "libavutil/channel_layout.h"
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36#include "libavutil/parseutils.h"
37#include "libavutil/samplefmt.h"
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38#include "libavutil/fifo.h"
39#include "libavutil/intreadwrite.h"
40#include "libavutil/dict.h"
41#include "libavutil/mathematics.h"
42#include "libavutil/pixdesc.h"
43#include "libavutil/avstring.h"
44#include "libavutil/libm.h"
64dca32c 45#include "libavutil/imgutils.h"
896bb0d7 46#include "libavutil/time.h"
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47#include "libavformat/os_support.h"
48
6291d7e4 49# include "libavfilter/avfilter.h"
04a14d4d 50# include "libavfilter/buffersrc.h"
ac712309 51# include "libavfilter/buffersink.h"
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52
53#if HAVE_SYS_RESOURCE_H
3f65eff4 54#include <sys/time.h>
6291d7e4 55#include <sys/types.h>
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56#include <sys/resource.h>
57#elif HAVE_GETPROCESSTIMES
58#include <windows.h>
59#endif
60#if HAVE_GETPROCESSMEMORYINFO
61#include <windows.h>
62#include <psapi.h>
63#endif
64
65#if HAVE_SYS_SELECT_H
66#include <sys/select.h>
67#endif
68
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69#if HAVE_PTHREADS
70#include <pthread.h>
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71#endif
72
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73#include <time.h>
74
f5e66827 75#include "avconv.h"
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76#include "cmdutils.h"
77
78#include "libavutil/avassert.h"
79
80const char program_name[] = "avconv";
81const int program_birth_year = 2000;
82
6291d7e4 83static FILE *vstats_file;
6291d7e4 84
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85static int64_t video_size = 0;
86static int64_t audio_size = 0;
87static int64_t extra_size = 0;
88static int nb_frames_dup = 0;
89static int nb_frames_drop = 0;
6291d7e4 90
6291d7e4 91
3460dd8a 92
47b812e9 93#if HAVE_PTHREADS
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94/* signal to input threads that they should exit; set by the main thread */
95static int transcoding_finished;
96#endif
97
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98#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
99
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100InputStream **input_streams = NULL;
101int nb_input_streams = 0;
102InputFile **input_files = NULL;
103int nb_input_files = 0;
6b779ccc 104
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105OutputStream **output_streams = NULL;
106int nb_output_streams = 0;
107OutputFile **output_files = NULL;
108int nb_output_files = 0;
6b779ccc 109
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110FilterGraph **filtergraphs;
111int nb_filtergraphs;
575ec4e1 112
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113static void term_exit(void)
114{
115 av_log(NULL, AV_LOG_QUIET, "");
116}
117
118static volatile int received_sigterm = 0;
119static volatile int received_nb_signals = 0;
120
121static void
122sigterm_handler(int sig)
123{
124 received_sigterm = sig;
125 received_nb_signals++;
126 term_exit();
127}
128
129static void term_init(void)
130{
7636c8c6 131 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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132 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
133#ifdef SIGXCPU
134 signal(SIGXCPU, sigterm_handler);
135#endif
136}
137
2abe947a 138static int decode_interrupt_cb(void *ctx)
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139{
140 return received_nb_signals > 1;
141}
142
f5e66827 143const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
2abe947a 144
636ced8e 145static void avconv_cleanup(int ret)
6291d7e4 146{
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147 int i, j;
148
149 for (i = 0; i < nb_filtergraphs; i++) {
150 avfilter_graph_free(&filtergraphs[i]->graph);
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151 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
152 av_freep(&filtergraphs[i]->inputs[j]->name);
560f7774 153 av_freep(&filtergraphs[i]->inputs[j]);
cf6c38c6 154 }
560f7774 155 av_freep(&filtergraphs[i]->inputs);
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156 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
157 av_freep(&filtergraphs[i]->outputs[j]->name);
560f7774 158 av_freep(&filtergraphs[i]->outputs[j]);
cf6c38c6 159 }
560f7774 160 av_freep(&filtergraphs[i]->outputs);
a4208b9b 161 av_freep(&filtergraphs[i]->graph_desc);
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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;
274e134e 169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
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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++) {
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195 av_frame_free(&input_streams[i]->decoded_frame);
196 av_frame_free(&input_streams[i]->filter_frame);
2e215267 197 av_dict_free(&input_streams[i]->opts);
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
776f2bb9 213 avformat_network_deinit();
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214
215 if (received_sigterm) {
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216 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
217 (int) received_sigterm);
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218 exit (255);
219 }
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220}
221
f5e66827 222void assert_avoptions(AVDictionary *m)
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223{
224 AVDictionaryEntry *t;
225 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 226 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
636ced8e 227 exit_program(1);
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228 }
229}
230
c854102d 231static void abort_codec_experimental(AVCodec *c, int encoder)
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232{
233 const char *codec_string = encoder ? "encoder" : "decoder";
234 AVCodec *codec;
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235 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
236 "results.\nAdd '-strict experimental' if you want to use it.\n",
237 codec_string, c->name);
238 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
239 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
240 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
241 codec_string, codec->name);
636ced8e 242 exit_program(1);
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243}
244
c1ef30a6 245/*
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246 * Update the requested input sample format based on the output sample format.
247 * This is currently only used to request float output from decoders which
248 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
249 * Ideally this will be removed in the future when decoders do not do format
250 * conversion and only output in their native format.
251 */
252static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
253 AVCodecContext *enc)
254{
255 /* if sample formats match or a decoder sample format has already been
256 requested, just return */
257 if (enc->sample_fmt == dec->sample_fmt ||
258 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
259 return;
260
261 /* if decoder supports more than one output format */
262 if (dec_codec && dec_codec->sample_fmts &&
263 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
264 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
265 const enum AVSampleFormat *p;
fd41cb43
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266 int min_dec = INT_MAX, min_inc = INT_MAX;
267 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
268 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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269
270 /* find a matching sample format in the encoder */
271 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
272 if (*p == enc->sample_fmt) {
273 dec->request_sample_fmt = *p;
274 return;
fd41cb43
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275 } else {
276 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
277 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
278 int fmt_diff = 32 * abs(dfmt - efmt);
279 if (av_sample_fmt_is_planar(*p) !=
280 av_sample_fmt_is_planar(enc->sample_fmt))
281 fmt_diff++;
282 if (dfmt == efmt) {
283 min_inc = fmt_diff;
284 inc_fmt = *p;
285 } else if (dfmt > efmt) {
286 if (fmt_diff < min_inc) {
287 min_inc = fmt_diff;
288 inc_fmt = *p;
289 }
290 } else {
291 if (fmt_diff < min_dec) {
292 min_dec = fmt_diff;
293 dec_fmt = *p;
294 }
295 }
296 }
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297 }
298
299 /* if none match, provide the one that matches quality closest */
fd41cb43 300 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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301 }
302}
303
f15f02c2 304static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 305{
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306 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
307 AVCodecContext *avctx = ost->st->codec;
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308 int ret;
309
99932847
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310 /*
311 * Audio encoders may split the packets -- #frames in != #packets out.
312 * But there is no reordering, so we can limit the number of output packets
313 * by simply dropping them here.
314 * Counting encoded video frames needs to be done separately because of
315 * reordering, see do_video_out()
316 */
317 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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318 if (ost->frame_number >= ost->max_frames) {
319 av_free_packet(pkt);
99932847 320 return;
c9594fe0 321 }
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322 ost->frame_number++;
323 }
324
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325 while (bsfc) {
326 AVPacket new_pkt = *pkt;
327 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
328 &new_pkt.data, &new_pkt.size,
329 pkt->data, pkt->size,
330 pkt->flags & AV_PKT_FLAG_KEY);
331 if (a > 0) {
6291d7e4 332 av_free_packet(pkt);
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333 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
334 av_buffer_default_free, NULL, 0);
335 if (!new_pkt.buf)
636ced8e 336 exit_program(1);
7636c8c6 337 } else if (a < 0) {
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338 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
339 bsfc->filter->name, pkt->stream_index,
340 avctx->codec ? avctx->codec->name : "copy");
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341 print_error("", a);
342 if (exit_on_error)
636ced8e 343 exit_program(1);
6291d7e4 344 }
7636c8c6 345 *pkt = new_pkt;
6291d7e4 346
7636c8c6 347 bsfc = bsfc->next;
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348 }
349
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350 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
351 ost->last_mux_dts != AV_NOPTS_VALUE &&
352 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
353 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
354 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
355 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
356 if (exit_on_error) {
357 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
636ced8e 358 exit_program(1);
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359 }
360 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
361 "in incorrect timestamps in the output file.\n",
362 ost->last_mux_dts + 1);
363 pkt->dts = ost->last_mux_dts + 1;
364 if (pkt->pts != AV_NOPTS_VALUE)
365 pkt->pts = FFMAX(pkt->pts, pkt->dts);
366 }
367 ost->last_mux_dts = pkt->dts;
368
61a09968 369 pkt->stream_index = ost->index;
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370 ret = av_interleaved_write_frame(s, pkt);
371 if (ret < 0) {
6291d7e4 372 print_error("av_interleaved_write_frame()", ret);
636ced8e 373 exit_program(1);
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374 }
375}
376
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377static int check_recording_time(OutputStream *ost)
378{
2e215267 379 OutputFile *of = output_files[ost->file_index];
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380
381 if (of->recording_time != INT64_MAX &&
382 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
383 AV_TIME_BASE_Q) >= 0) {
57d24225 384 ost->finished = 1;
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385 return 0;
386 }
387 return 1;
388}
389
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390static void do_audio_out(AVFormatContext *s, OutputStream *ost,
391 AVFrame *frame)
ee458cb1
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392{
393 AVCodecContext *enc = ost->st->codec;
ee458cb1 394 AVPacket pkt;
369cb092 395 int got_packet = 0;
ee458cb1
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396
397 av_init_packet(&pkt);
398 pkt.data = NULL;
399 pkt.size = 0;
400
369cb092 401 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 402 frame->pts = ost->sync_opts;
369cb092 403 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 404
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405 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
406 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
636ced8e 407 exit_program(1);
ee458cb1
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408 }
409
410 if (got_packet) {
ee458cb1
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411 if (pkt.pts != AV_NOPTS_VALUE)
412 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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413 if (pkt.dts != AV_NOPTS_VALUE)
414 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
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415 if (pkt.duration > 0)
416 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
417
418 write_frame(s, &pkt, ost);
419
420 audio_size += pkt.size;
421 }
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422}
423
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424static void do_subtitle_out(AVFormatContext *s,
425 OutputStream *ost,
426 InputStream *ist,
427 AVSubtitle *sub,
428 int64_t pts)
429{
430 static uint8_t *subtitle_out = NULL;
431 int subtitle_out_max_size = 1024 * 1024;
432 int subtitle_out_size, nb, i;
433 AVCodecContext *enc;
434 AVPacket pkt;
435
436 if (pts == AV_NOPTS_VALUE) {
e3245b26 437 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 438 if (exit_on_error)
636ced8e 439 exit_program(1);
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440 return;
441 }
442
443 enc = ost->st->codec;
444
445 if (!subtitle_out) {
446 subtitle_out = av_malloc(subtitle_out_max_size);
447 }
448
449 /* Note: DVB subtitle need one packet to draw them and one other
450 packet to clear them */
451 /* XXX: signal it in the codec context ? */
36ef5369 452 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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453 nb = 2;
454 else
455 nb = 1;
456
7636c8c6 457 for (i = 0; i < nb; i++) {
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458 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
459 if (!check_recording_time(ost))
460 return;
461
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462 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
463 // start_display_time is required to be 0
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464 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
465 sub->end_display_time -= sub->start_display_time;
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466 sub->start_display_time = 0;
467 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
468 subtitle_out_max_size, sub);
469 if (subtitle_out_size < 0) {
e3245b26 470 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
636ced8e 471 exit_program(1);
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472 }
473
474 av_init_packet(&pkt);
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475 pkt.data = subtitle_out;
476 pkt.size = subtitle_out_size;
7636c8c6 477 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 478 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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479 /* XXX: the pts correction is handled here. Maybe handling
480 it in the codec would be better */
481 if (i == 0)
482 pkt.pts += 90 * sub->start_display_time;
483 else
484 pkt.pts += 90 * sub->end_display_time;
485 }
f15f02c2 486 write_frame(s, &pkt, ost);
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487 }
488}
489
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490static void do_video_out(AVFormatContext *s,
491 OutputStream *ost,
87ef060c 492 AVFrame *in_picture,
fb722a90 493 int *frame_size)
87ef060c 494{
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495 int ret, format_video_sync;
496 AVPacket pkt;
497 AVCodecContext *enc = ost->st->codec;
87ef060c
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498
499 *frame_size = 0;
500
553735f5 501 format_video_sync = video_sync_method;
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502 if (format_video_sync == VSYNC_AUTO)
503 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
504 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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505 if (format_video_sync != VSYNC_PASSTHROUGH &&
506 ost->frame_number &&
507 in_picture->pts != AV_NOPTS_VALUE &&
508 in_picture->pts < ost->sync_opts) {
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509 nb_frames_drop++;
510 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
87ef060c 511 return;
d43040e2 512 }
87ef060c 513
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514 if (in_picture->pts == AV_NOPTS_VALUE)
515 in_picture->pts = ost->sync_opts;
516 ost->sync_opts = in_picture->pts;
517
518
1270e12e 519 if (!ost->frame_number)
74b961db 520 ost->first_pts = in_picture->pts;
1270e12e 521
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522 av_init_packet(&pkt);
523 pkt.data = NULL;
524 pkt.size = 0;
6291d7e4 525
a83c0da5 526 if (ost->frame_number >= ost->max_frames)
39885a4b 527 return;
1270e12e 528
39885a4b 529 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 530 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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531 /* raw pictures are written as AVPicture structure to
532 avoid any copies. We support temporarily the older
533 method. */
534 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
535 enc->coded_frame->top_field_first = in_picture->top_field_first;
536 pkt.data = (uint8_t *)in_picture;
537 pkt.size = sizeof(AVPicture);
538 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
539 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 540
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541 write_frame(s, &pkt, ost);
542 } else {
543 int got_packet;
6291d7e4 544
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545 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
546 ost->top_field_first >= 0)
547 in_picture->top_field_first = !!ost->top_field_first;
548
549 in_picture->quality = ost->st->codec->global_quality;
39885a4b 550 if (!enc->me_threshold)
9b2dc295 551 in_picture->pict_type = 0;
39885a4b 552 if (ost->forced_kf_index < ost->forced_kf_count &&
9b2dc295
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553 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
554 in_picture->pict_type = AV_PICTURE_TYPE_I;
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555 ost->forced_kf_index++;
556 }
9b2dc295 557 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
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558 if (ret < 0) {
559 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
636ced8e 560 exit_program(1);
39885a4b 561 }
6291d7e4 562
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563 if (got_packet) {
564 if (pkt.pts != AV_NOPTS_VALUE)
565 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
566 if (pkt.dts != AV_NOPTS_VALUE)
567 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 568
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569 write_frame(s, &pkt, ost);
570 *frame_size = pkt.size;
571 video_size += pkt.size;
324fbadf 572
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573 /* if two pass, output log */
574 if (ost->logfile && enc->stats_out) {
575 fprintf(ost->logfile, "%s", enc->stats_out);
6291d7e4
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576 }
577 }
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578 }
579 ost->sync_opts++;
580 /*
581 * For video, number of frames in == number of packets out.
582 * But there may be reordering, so we can't throw away frames on encoder
583 * flush, we need to limit them here, before they go into encoder.
584 */
585 ost->frame_number++;
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586}
587
7636c8c6
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588static double psnr(double d)
589{
590 return -10.0 * log(d) / log(10.0);
6291d7e4
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591}
592
70478746 593static void do_video_stats(OutputStream *ost, int frame_size)
6291d7e4
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594{
595 AVCodecContext *enc;
596 int frame_number;
597 double ti1, bitrate, avg_bitrate;
598
599 /* this is executed just the first time do_video_stats is called */
600 if (!vstats_file) {
601 vstats_file = fopen(vstats_filename, "w");
602 if (!vstats_file) {
603 perror("fopen");
636ced8e 604 exit_program(1);
6291d7e4
AK
605 }
606 }
607
608 enc = ost->st->codec;
609 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
610 frame_number = ost->frame_number;
7636c8c6 611 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 612 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 613 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
6291d7e4
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614
615 fprintf(vstats_file,"f_size= %6d ", frame_size);
616 /* compute pts value */
617 ti1 = ost->sync_opts * av_q2d(enc->time_base);
618 if (ti1 < 0.01)
619 ti1 = 0.01;
620
7636c8c6 621 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
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622 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
623 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
7636c8c6 624 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
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625 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
626 }
627}
628
c1ef30a6 629/*
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630 * Read one frame for lavfi output for ost and encode it.
631 */
632static int poll_filter(OutputStream *ost)
560f7774 633{
a4f50110 634 OutputFile *of = output_files[ost->file_index];
560f7774 635 AVFrame *filtered_frame = NULL;
a4f50110
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636 int frame_size, ret;
637
638 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
639 return AVERROR(ENOMEM);
640 } else
641 avcodec_get_frame_defaults(ost->filtered_frame);
642 filtered_frame = ost->filtered_frame;
643
644 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
645 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
9b2dc295 646 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
a4f50110
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647 ost->st->codec->frame_size);
648 else
9b2dc295 649 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
369cb092 650
a4f50110
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651 if (ret < 0)
652 return ret;
560f7774 653
9b2dc295 654 if (filtered_frame->pts != AV_NOPTS_VALUE) {
56ee3f9d 655 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
9b2dc295 656 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
a4f50110
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657 ost->filter->filter->inputs[0]->time_base,
658 ost->st->codec->time_base) -
56ee3f9d 659 av_rescale_q(start_time,
a4f50110
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660 AV_TIME_BASE_Q,
661 ost->st->codec->time_base);
560f7774 662 }
a4f50110
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663
664 switch (ost->filter->filter->inputs[0]->type) {
665 case AVMEDIA_TYPE_VIDEO:
666 if (!ost->frame_aspect_ratio)
9b2dc295 667 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
a4f50110 668
fb722a90 669 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
a4f50110 670 if (vstats_filename && frame_size)
70478746 671 do_video_stats(ost, frame_size);
a4f50110
AK
672 break;
673 case AVMEDIA_TYPE_AUDIO:
674 do_audio_out(of->ctx, ost, filtered_frame);
675 break;
676 default:
677 // TODO support subtitle filters
678 av_assert0(0);
679 }
680
9b2dc295 681 av_frame_unref(filtered_frame);
a4f50110 682
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683 return 0;
684}
685
c1ef30a6 686/*
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687 * Read as many frames from possible from lavfi and encode them.
688 *
689 * Always read from the active stream with the lowest timestamp. If no frames
690 * are available for it then return EAGAIN and wait for more input. This way we
691 * can use lavfi sources that generate unlimited amount of frames without memory
692 * usage exploding.
693 */
694static int poll_filters(void)
695{
3c0df905 696 int i, j, ret = 0;
a4f50110
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697
698 while (ret >= 0 && !received_sigterm) {
699 OutputStream *ost = NULL;
700 int64_t min_pts = INT64_MAX;
701
702 /* choose output stream with the lowest timestamp */
703 for (i = 0; i < nb_output_streams; i++) {
704 int64_t pts = output_streams[i]->sync_opts;
705
57d24225 706 if (!output_streams[i]->filter || output_streams[i]->finished)
a4f50110
AK
707 continue;
708
709 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
710 AV_TIME_BASE_Q);
711 if (pts < min_pts) {
712 min_pts = pts;
713 ost = output_streams[i];
714 }
715 }
716
717 if (!ost)
718 break;
719
720 ret = poll_filter(ost);
721
722 if (ret == AVERROR_EOF) {
3c0df905
AK
723 OutputFile *of = output_files[ost->file_index];
724
57d24225 725 ost->finished = 1;
a4f50110 726
3c0df905
AK
727 if (of->shortest) {
728 for (j = 0; j < of->ctx->nb_streams; j++)
729 output_streams[of->ost_index + j]->finished = 1;
730 }
a4f50110
AK
731
732 ret = 0;
733 } else if (ret == AVERROR(EAGAIN))
734 return 0;
735 }
736
737 return ret;
738}
739
ea9367e9 740static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
741{
742 char buf[1024];
743 OutputStream *ost;
744 AVFormatContext *oc;
745 int64_t total_size;
746 AVCodecContext *enc;
747 int frame_number, vid, i;
748 double bitrate, ti1, pts;
749 static int64_t last_time = -1;
750 static int qp_histogram[52];
751
3460dd8a
AK
752 if (!print_stats && !is_last_report)
753 return;
754
6291d7e4
AK
755 if (!is_last_report) {
756 int64_t cur_time;
757 /* display the report every 0.5 seconds */
758 cur_time = av_gettime();
759 if (last_time == -1) {
760 last_time = cur_time;
761 return;
762 }
763 if ((cur_time - last_time) < 500000)
764 return;
765 last_time = cur_time;
766 }
767
768
2e215267 769 oc = output_files[0]->ctx;
6291d7e4
AK
770
771 total_size = avio_size(oc->pb);
1b891d17 772 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
7636c8c6 773 total_size = avio_tell(oc->pb);
1b891d17
JG
774 if (total_size < 0) {
775 char errbuf[128];
776 av_strerror(total_size, errbuf, sizeof(errbuf));
777 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
778 "avio_tell() failed: %s\n", errbuf);
779 total_size = 0;
780 }
6291d7e4
AK
781
782 buf[0] = '\0';
783 ti1 = 1e10;
784 vid = 0;
ea9367e9 785 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 786 float q = -1;
2e215267 787 ost = output_streams[i];
6291d7e4 788 enc = ost->st->codec;
3d813e4c 789 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 790 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
791 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
792 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
793 }
794 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 795 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
796
797 frame_number = ost->frame_number;
798 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
799 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
800 if (is_last_report)
6291d7e4 801 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 802 if (qp_hist) {
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AK
803 int j;
804 int qp = lrintf(q);
7636c8c6 805 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 806 qp_histogram[qp]++;
7636c8c6 807 for (j = 0; j < 32; j++)
d752509b 808 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 809 }
7636c8c6 810 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 811 int j;
7636c8c6
AD
812 double error, error_sum = 0;
813 double scale, scale_sum = 0;
814 char type[3] = { 'Y','U','V' };
6291d7e4 815 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
816 for (j = 0; j < 3; j++) {
817 if (is_last_report) {
818 error = enc->error[j];
819 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
820 } else {
821 error = enc->coded_frame->error[j];
822 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 823 }
7636c8c6
AD
824 if (j)
825 scale /= 4;
6291d7e4
AK
826 error_sum += error;
827 scale_sum += scale;
7636c8c6 828 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 829 }
7636c8c6 830 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4
AK
831 }
832 vid = 1;
833 }
834 /* compute min output value */
835 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
836 if ((pts < ti1) && (pts > 0))
837 ti1 = pts;
838 }
839 if (ti1 < 0.01)
840 ti1 = 0.01;
841
e3245b26 842 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 843
e3245b26 844 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
845 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
846 (double)total_size / 1024, ti1, bitrate);
847
e3245b26
AK
848 if (nb_frames_dup || nb_frames_drop)
849 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
850 nb_frames_dup, nb_frames_drop);
6291d7e4 851
f5646a32 852 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 853
e3245b26 854 fflush(stderr);
6291d7e4 855
e3245b26 856 if (is_last_report) {
6291d7e4 857 int64_t raw= audio_size + video_size + extra_size;
e3245b26
AK
858 av_log(NULL, AV_LOG_INFO, "\n");
859 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
7636c8c6
AD
860 video_size / 1024.0,
861 audio_size / 1024.0,
862 extra_size / 1024.0,
863 100.0 * (total_size - raw) / raw
6291d7e4
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864 );
865 }
866}
867
ea9367e9 868static void flush_encoders(void)
4a4ce2e7
AK
869{
870 int i, ret;
871
ea9367e9 872 for (i = 0; i < nb_output_streams; i++) {
2e215267 873 OutputStream *ost = output_streams[i];
6f1c66d5 874 AVCodecContext *enc = ost->st->codec;
2e215267 875 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 876 int stop_encoding = 0;
6f1c66d5 877
b62b5cb6 878 if (!ost->encoding_needed)
6f1c66d5
AK
879 continue;
880
7636c8c6 881 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 882 continue;
36ef5369 883 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
6f1c66d5
AK
884 continue;
885
7636c8c6 886 for (;;) {
369cb092
AK
887 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
888 const char *desc;
889 int64_t *size;
6f1c66d5
AK
890
891 switch (ost->st->codec->codec_type) {
892 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
893 encode = avcodec_encode_audio2;
894 desc = "Audio";
895 size = &audio_size;
6f1c66d5
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896 break;
897 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
898 encode = avcodec_encode_video2;
899 desc = "Video";
900 size = &video_size;
901 break;
902 default:
903 stop_encoding = 1;
904 }
905
906 if (encode) {
907 AVPacket pkt;
908 int got_packet;
909 av_init_packet(&pkt);
910 pkt.data = NULL;
911 pkt.size = 0;
912
913 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 914 if (ret < 0) {
369cb092 915 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
636ced8e 916 exit_program(1);
6f1c66d5 917 }
369cb092 918 *size += ret;
6f1c66d5
AK
919 if (ost->logfile && enc->stats_out) {
920 fprintf(ost->logfile, "%s", enc->stats_out);
921 }
8e37038a 922 if (!got_packet) {
ee458cb1
JR
923 stop_encoding = 1;
924 break;
925 }
8e37038a
AK
926 if (pkt.pts != AV_NOPTS_VALUE)
927 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
928 if (pkt.dts != AV_NOPTS_VALUE)
929 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
3ba41640
JR
930 if (pkt.duration > 0)
931 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
ee458cb1 932 write_frame(os, &pkt, ost);
4a4ce2e7 933 }
369cb092 934
ee458cb1 935 if (stop_encoding)
6f1c66d5 936 break;
4a4ce2e7
AK
937 }
938 }
939}
940
7204ec1a
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941/*
942 * Check whether a packet from ist should be written into ost at this time
943 */
944static int check_output_constraints(InputStream *ist, OutputStream *ost)
945{
2e215267
AK
946 OutputFile *of = output_files[ost->file_index];
947 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
948
949 if (ost->source_index != ist_index)
950 return 0;
951
56ee3f9d 952 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
7204ec1a
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953 return 0;
954
7204ec1a
AK
955 return 1;
956}
957
958static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
959{
2e215267 960 OutputFile *of = output_files[ost->file_index];
56ee3f9d
AK
961 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
962 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
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AK
963 AVPacket opkt;
964
965 av_init_packet(&opkt);
966
967 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
968 !ost->copy_initial_nonkeyframes)
969 return;
970
1270e12e 971 if (of->recording_time != INT64_MAX &&
56ee3f9d 972 ist->last_dts >= of->recording_time + start_time) {
57d24225 973 ost->finished = 1;
1270e12e
AK
974 return;
975 }
976
7204ec1a
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977 /* force the input stream PTS */
978 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
979 audio_size += pkt->size;
980 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
981 video_size += pkt->size;
982 ost->sync_opts++;
983 }
984
7204ec1a
AK
985 if (pkt->pts != AV_NOPTS_VALUE)
986 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
987 else
988 opkt.pts = AV_NOPTS_VALUE;
989
990 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 991 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
992 else
993 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
994 opkt.dts -= ost_tb_start_time;
995
996 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
997 opkt.flags = pkt->flags;
998
7636c8c6 999 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
36ef5369
AK
1000 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1001 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1002 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1003 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
7204ec1a 1004 ) {
9b2dc295
AK
1005 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1006 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1007 if (!opkt.buf)
636ced8e 1008 exit_program(1);
9b2dc295 1009 }
7204ec1a
AK
1010 } else {
1011 opkt.data = pkt->data;
1012 opkt.size = pkt->size;
1013 }
1014
f15f02c2 1015 write_frame(of->ctx, &opkt, ost);
7204ec1a 1016 ost->st->codec->frame_number++;
7204ec1a
AK
1017}
1018
f5e66827 1019int guess_input_channel_layout(InputStream *ist)
369cb092
AK
1020{
1021 AVCodecContext *dec = ist->st->codec;
1022
1023 if (!dec->channel_layout) {
1024 char layout_name[256];
1025
1026 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1027 if (!dec->channel_layout)
1028 return 0;
1029 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1030 dec->channels, dec->channel_layout);
1031 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1032 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1033 }
1034 return 1;
1035}
1036
0629f612 1037static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1038{
9b2dc295 1039 AVFrame *decoded_frame, *f;
d1241ff3 1040 AVCodecContext *avctx = ist->st->codec;
9b2dc295 1041 int i, ret, err = 0, resample_changed;
ded28ba3 1042
9179f27c 1043 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
d1241ff3 1044 return AVERROR(ENOMEM);
9b2dc295
AK
1045 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1046 return AVERROR(ENOMEM);
9179f27c 1047 decoded_frame = ist->decoded_frame;
ded28ba3 1048
d1241ff3 1049 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1050 if (!*got_output || ret < 0) {
1051 if (!pkt->size) {
369cb092 1052 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1053 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1054 }
af8ad892 1055 return ret;
ded28ba3
AK
1056 }
1057
d1241ff3
JR
1058 /* if the decoder provides a pts, use it instead of the last packet pts.
1059 the decoder could be delaying output by a packet or more. */
1060 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1061 ist->next_dts = decoded_frame->pts;
369cb092
AK
1062 else if (pkt->pts != AV_NOPTS_VALUE) {
1063 decoded_frame->pts = pkt->pts;
1064 pkt->pts = AV_NOPTS_VALUE;
1065 }
ded28ba3 1066
369cb092
AK
1067 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1068 ist->resample_channels != avctx->channels ||
1069 ist->resample_channel_layout != decoded_frame->channel_layout ||
1070 ist->resample_sample_rate != decoded_frame->sample_rate;
1071 if (resample_changed) {
1072 char layout1[64], layout2[64];
ded28ba3 1073
369cb092
AK
1074 if (!guess_input_channel_layout(ist)) {
1075 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1076 "layout for Input Stream #%d.%d\n", ist->file_index,
1077 ist->st->index);
636ced8e 1078 exit_program(1);
369cb092
AK
1079 }
1080 decoded_frame->channel_layout = avctx->channel_layout;
1081
1082 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1083 ist->resample_channel_layout);
1084 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1085 decoded_frame->channel_layout);
1086
1087 av_log(NULL, AV_LOG_INFO,
1088 "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",
1089 ist->file_index, ist->st->index,
1090 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1091 ist->resample_channels, layout1,
1092 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1093 avctx->channels, layout2);
1094
1095 ist->resample_sample_fmt = decoded_frame->format;
1096 ist->resample_sample_rate = decoded_frame->sample_rate;
1097 ist->resample_channel_layout = decoded_frame->channel_layout;
1098 ist->resample_channels = avctx->channels;
1099
1100 for (i = 0; i < nb_filtergraphs; i++)
1101 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1102 configure_filtergraph(filtergraphs[i]) < 0) {
1103 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1104 exit_program(1);
369cb092 1105 }
ded28ba3 1106 }
110d2af2 1107
715129cd
MS
1108 if (decoded_frame->pts != AV_NOPTS_VALUE)
1109 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1110 ist->st->time_base,
1111 (AVRational){1, ist->st->codec->sample_rate});
9b2dc295
AK
1112 for (i = 0; i < ist->nb_filters; i++) {
1113 if (i < ist->nb_filters - 1) {
1114 f = ist->filter_frame;
1115 err = av_frame_ref(f, decoded_frame);
1116 if (err < 0)
1117 break;
1118 } else
1119 f = decoded_frame;
369cb092 1120
9b2dc295
AK
1121 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1122 if (err < 0)
1123 break;
1124 }
1125
1126 av_frame_unref(ist->filter_frame);
1127 av_frame_unref(decoded_frame);
1128 return err < 0 ? err : ret;
ded28ba3
AK
1129}
1130
0629f612 1131static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1132{
9b2dc295 1133 AVFrame *decoded_frame, *f;
45d4b66f 1134 void *buffer_to_free = NULL;
9b2dc295 1135 int i, ret = 0, err = 0, resample_changed;
45d4b66f 1136
9b2dc295
AK
1137 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1138 return AVERROR(ENOMEM);
1139 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
45d4b66f 1140 return AVERROR(ENOMEM);
9179f27c 1141 decoded_frame = ist->decoded_frame;
45d4b66f
AK
1142
1143 ret = avcodec_decode_video2(ist->st->codec,
1144 decoded_frame, got_output, pkt);
f154ef1a
AK
1145 if (!*got_output || ret < 0) {
1146 if (!pkt->size) {
89605e4a 1147 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1148 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1149 }
af8ad892 1150 return ret;
45d4b66f 1151 }
f154ef1a 1152
b34856a1
AK
1153 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1154 decoded_frame->pkt_dts);
45d4b66f 1155 pkt->size = 0;
45d4b66f 1156
695ec04e
AK
1157 if (ist->st->sample_aspect_ratio.num)
1158 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1159
e77c8662
AK
1160 resample_changed = ist->resample_width != decoded_frame->width ||
1161 ist->resample_height != decoded_frame->height ||
1162 ist->resample_pix_fmt != decoded_frame->format;
1163 if (resample_changed) {
1164 av_log(NULL, AV_LOG_INFO,
1165 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1166 ist->file_index, ist->st->index,
1167 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1168 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1169
2f34021d
JG
1170 ret = poll_filters();
1171 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1172 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1173
e77c8662
AK
1174 ist->resample_width = decoded_frame->width;
1175 ist->resample_height = decoded_frame->height;
1176 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1177
3b266da3
AK
1178 for (i = 0; i < nb_filtergraphs; i++)
1179 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1180 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1181 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1182 exit_program(1);
3b266da3
AK
1183 }
1184 }
ac646076 1185
3b266da3 1186 for (i = 0; i < ist->nb_filters; i++) {
9b2dc295
AK
1187 if (i < ist->nb_filters - 1) {
1188 f = ist->filter_frame;
1189 err = av_frame_ref(f, decoded_frame);
1190 if (err < 0)
1191 break;
04a14d4d 1192 } else
9b2dc295
AK
1193 f = decoded_frame;
1194
1195 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1196 if (err < 0)
1197 break;
45d4b66f
AK
1198 }
1199
9b2dc295
AK
1200 av_frame_unref(ist->filter_frame);
1201 av_frame_unref(decoded_frame);
45d4b66f 1202 av_free(buffer_to_free);
9b2dc295 1203 return err < 0 ? err : ret;
45d4b66f
AK
1204}
1205
9595234c
AK
1206static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1207{
1208 AVSubtitle subtitle;
1209 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1210 &subtitle, got_output, pkt);
1211 if (ret < 0)
1212 return ret;
1213 if (!*got_output)
af8ad892 1214 return ret;
9595234c 1215
9595234c 1216 for (i = 0; i < nb_output_streams; i++) {
2e215267 1217 OutputStream *ost = output_streams[i];
9595234c
AK
1218
1219 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1220 continue;
1221
2e215267 1222 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1223 }
1224
1225 avsubtitle_free(&subtitle);
af8ad892 1226 return ret;
9595234c
AK
1227}
1228
6291d7e4 1229/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1230static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1231{
ffa0674e 1232 int i;
6291d7e4 1233 int got_output;
6291d7e4 1234 AVPacket avpkt;
6291d7e4 1235
3101bb66 1236 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1237 ist->next_dts = ist->last_dts;
6291d7e4
AK
1238
1239 if (pkt == NULL) {
1240 /* EOF handling */
1241 av_init_packet(&avpkt);
1242 avpkt.data = NULL;
1243 avpkt.size = 0;
1244 goto handle_eof;
1245 } else {
1246 avpkt = *pkt;
1247 }
1248
7636c8c6 1249 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1250 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1251
7636c8c6 1252 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1253 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1254 int ret = 0;
6291d7e4 1255 handle_eof:
6291d7e4 1256
23576b3f 1257 ist->last_dts = ist->next_dts;
8b0268a8
AK
1258
1259 if (avpkt.size && avpkt.size != pkt->size) {
e3245b26
AK
1260 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1261 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1262 ist->showed_multi_packet_warning = 1;
1263 }
6291d7e4 1264
7636c8c6 1265 switch (ist->st->codec->codec_type) {
82963f8f 1266 case AVMEDIA_TYPE_AUDIO:
0629f612 1267 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1268 break;
1269 case AVMEDIA_TYPE_VIDEO:
0629f612 1270 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1271 if (avpkt.duration)
1272 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1273 else if (ist->st->avg_frame_rate.num)
82494835 1274 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1275 AV_TIME_BASE_Q);
b34856a1
AK
1276 else if (ist->st->codec->time_base.num != 0) {
1277 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1278 ist->st->codec->ticks_per_frame;
1279 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1280 }
82963f8f
AK
1281 break;
1282 case AVMEDIA_TYPE_SUBTITLE:
1283 ret = transcode_subtitles(ist, &avpkt, &got_output);
1284 break;
78162b4e
AK
1285 default:
1286 return -1;
1287 }
6291d7e4 1288
d3c1d37a
AK
1289 if (ret < 0)
1290 return ret;
aa38cff2
JG
1291 // touch data and size only if not EOF
1292 if (pkt) {
1293 avpkt.data += ret;
1294 avpkt.size -= ret;
1295 }
82963f8f 1296 if (!got_output) {
af8ad892 1297 continue;
82963f8f 1298 }
6291d7e4 1299 }
6291d7e4 1300
7204ec1a 1301 /* handle stream copy */
2a651b71 1302 if (!ist->decoding_needed) {
23576b3f 1303 ist->last_dts = ist->next_dts;
2a651b71
AK
1304 switch (ist->st->codec->codec_type) {
1305 case AVMEDIA_TYPE_AUDIO:
3101bb66 1306 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
1307 ist->st->codec->sample_rate;
1308 break;
1309 case AVMEDIA_TYPE_VIDEO:
1310 if (ist->st->codec->time_base.num != 0) {
7636c8c6 1311 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 1312 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
1313 ist->st->codec->time_base.num * ticks) /
1314 ist->st->codec->time_base.den;
1315 }
1316 break;
1317 }
1318 }
ea9367e9 1319 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1320 OutputStream *ost = output_streams[i];
7204ec1a
AK
1321
1322 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1323 continue;
1324
1325 do_streamcopy(ist, ost, pkt);
1326 }
1327
6291d7e4
AK
1328 return 0;
1329}
1330
ea9367e9 1331static void print_sdp(void)
6291d7e4 1332{
a23abaf3 1333 char sdp[16384];
af70aa45 1334 int i;
ea9367e9 1335 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1336
1337 if (!avc)
636ced8e 1338 exit_program(1);
ea9367e9 1339 for (i = 0; i < nb_output_files; i++)
2e215267 1340 avc[i] = output_files[i]->ctx;
6291d7e4 1341
ea9367e9 1342 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1343 printf("SDP:\n%s\n", sdp);
1344 fflush(stdout);
af70aa45 1345 av_freep(&avc);
6291d7e4
AK
1346}
1347
ea9367e9 1348static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1349{
c854102d 1350 int i, ret;
2e215267 1351 InputStream *ist = input_streams[ist_index];
630902a1
AK
1352 if (ist->decoding_needed) {
1353 AVCodec *codec = ist->dec;
630902a1 1354 if (!codec) {
9a414d89 1355 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
1356 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1357 return AVERROR(EINVAL);
1358 }
1359
1360 /* update requested sample format for the decoder based on the
1361 corresponding encoder sample format */
1362 for (i = 0; i < nb_output_streams; i++) {
2e215267 1363 OutputStream *ost = output_streams[i];
630902a1
AK
1364 if (ost->source_index == ist_index) {
1365 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1366 break;
1367 }
1368 }
1369
9b2dc295 1370 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
64dca32c 1371
2473a45c
JG
1372 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1373 av_dict_set(&ist->opts, "threads", "auto", 0);
c854102d 1374 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
42cc6cef 1375 char errbuf[128];
c854102d
NC
1376 if (ret == AVERROR_EXPERIMENTAL)
1377 abort_codec_experimental(codec, 0);
42cc6cef
LB
1378
1379 av_strerror(ret, errbuf, sizeof(errbuf));
1380
1381 snprintf(error, error_len,
1382 "Error while opening decoder for input stream "
1383 "#%d:%d : %s",
1384 ist->file_index, ist->st->index, errbuf);
c854102d 1385 return ret;
630902a1 1386 }
630902a1
AK
1387 assert_avoptions(ist->opts);
1388 }
1389
23576b3f 1390 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 1391 ist->next_dts = AV_NOPTS_VALUE;
630902a1
AK
1392 init_pts_correction(&ist->pts_ctx);
1393 ist->is_start = 1;
1394
1395 return 0;
1396}
1397
3b266da3
AK
1398static InputStream *get_input_stream(OutputStream *ost)
1399{
1400 if (ost->source_index >= 0)
1401 return input_streams[ost->source_index];
1402
1403 if (ost->filter) {
1404 FilterGraph *fg = ost->filter->graph;
1405 int i;
1406
1407 for (i = 0; i < fg->nb_inputs; i++)
1408 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1409 return fg->inputs[i]->ist;
1410 }
1411
1412 return NULL;
1413}
1414
19ad5673
AK
1415static void parse_forced_key_frames(char *kf, OutputStream *ost,
1416 AVCodecContext *avctx)
1417{
1418 char *p;
1419 int n = 1, i;
1420 int64_t t;
1421
1422 for (p = kf; *p; p++)
1423 if (*p == ',')
1424 n++;
1425 ost->forced_kf_count = n;
1426 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1427 if (!ost->forced_kf_pts) {
1428 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
636ced8e 1429 exit_program(1);
19ad5673 1430 }
4c679750
RD
1431
1432 p = kf;
19ad5673 1433 for (i = 0; i < n; i++) {
4c679750
RD
1434 char *next = strchr(p, ',');
1435
1436 if (next)
1437 *next++ = 0;
1438
19ad5673
AK
1439 t = parse_time_or_die("force_key_frames", p, 1);
1440 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1441
1442 p = next;
19ad5673
AK
1443 }
1444}
1445
ea9367e9 1446static int transcode_init(void)
6291d7e4 1447{
2c474ddb 1448 int ret = 0, i, j, k;
1bb77e51 1449 AVFormatContext *oc;
a5fd7c60 1450 AVCodecContext *codec;
4288e031 1451 OutputStream *ost;
6291d7e4
AK
1452 InputStream *ist;
1453 char error[1024];
1454 int want_sdp = 1;
b0c9e8e0 1455
f4805328
AK
1456 /* init framerate emulation */
1457 for (i = 0; i < nb_input_files; i++) {
2e215267 1458 InputFile *ifile = input_files[i];
f4805328
AK
1459 if (ifile->rate_emu)
1460 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1461 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1462 }
6291d7e4
AK
1463
1464 /* output stream init */
03f30c83 1465 for (i = 0; i < nb_output_files; i++) {
2e215267 1466 oc = output_files[i]->ctx;
1bb77e51
AK
1467 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1468 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1469 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1470 return AVERROR(EINVAL);
6291d7e4 1471 }
6291d7e4
AK
1472 }
1473
3b266da3
AK
1474 /* init complex filtergraphs */
1475 for (i = 0; i < nb_filtergraphs; i++)
1476 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1477 return ret;
1478
6291d7e4 1479 /* for each output stream, we compute the right encoding parameters */
4288e031 1480 for (i = 0; i < nb_output_streams; i++) {
a5fd7c60 1481 AVCodecContext *icodec = NULL;
2e215267
AK
1482 ost = output_streams[i];
1483 oc = output_files[ost->file_index]->ctx;
3b266da3 1484 ist = get_input_stream(ost);
6291d7e4 1485
4dbc6cee
AK
1486 if (ost->attachment_filename)
1487 continue;
1488
03f30c83 1489 codec = ost->st->codec;
6291d7e4 1490
3b266da3
AK
1491 if (ist) {
1492 icodec = ist->st->codec;
1493
1494 ost->st->disposition = ist->st->disposition;
1495 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1496 codec->chroma_sample_location = icodec->chroma_sample_location;
1497 }
6291d7e4 1498
3d813e4c 1499 if (ost->stream_copy) {
538bf767 1500 AVRational sar;
8c4022ac
AK
1501 uint64_t extra_size;
1502
1503 av_assert0(ist && !ost->filter);
1504
1505 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1506
e6d2b737 1507 if (extra_size > INT_MAX) {
eaf2d37a 1508 return AVERROR(EINVAL);
e6d2b737 1509 }
6291d7e4
AK
1510
1511 /* if stream_copy is selected, no need to decode or encode */
03f30c83 1512 codec->codec_id = icodec->codec_id;
6291d7e4
AK
1513 codec->codec_type = icodec->codec_type;
1514
03f30c83
AK
1515 if (!codec->codec_tag) {
1516 if (!oc->oformat->codec_tag ||
1517 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1518 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
6291d7e4
AK
1519 codec->codec_tag = icodec->codec_tag;
1520 }
1521
03f30c83 1522 codec->bit_rate = icodec->bit_rate;
6291d7e4
AK
1523 codec->rc_max_rate = icodec->rc_max_rate;
1524 codec->rc_buffer_size = icodec->rc_buffer_size;
4bf3c8f2 1525 codec->field_order = icodec->field_order;
03f30c83 1526 codec->extradata = av_mallocz(extra_size);
e6d2b737 1527 if (!codec->extradata) {
eaf2d37a 1528 return AVERROR(ENOMEM);
e6d2b737 1529 }
6291d7e4 1530 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
03f30c83 1531 codec->extradata_size = icodec->extradata_size;
7bb3e625 1532 if (!copy_tb) {
03f30c83 1533 codec->time_base = icodec->time_base;
6291d7e4
AK
1534 codec->time_base.num *= icodec->ticks_per_frame;
1535 av_reduce(&codec->time_base.num, &codec->time_base.den,
1536 codec->time_base.num, codec->time_base.den, INT_MAX);
03f30c83 1537 } else
6291d7e4 1538 codec->time_base = ist->st->time_base;
03f30c83 1539
7636c8c6 1540 switch (codec->codec_type) {
6291d7e4 1541 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1542 if (audio_volume != 256) {
e3245b26 1543 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
636ced8e 1544 exit_program(1);
6291d7e4 1545 }
03f30c83
AK
1546 codec->channel_layout = icodec->channel_layout;
1547 codec->sample_rate = icodec->sample_rate;
1548 codec->channels = icodec->channels;
1549 codec->frame_size = icodec->frame_size;
6291d7e4 1550 codec->audio_service_type = icodec->audio_service_type;
03f30c83 1551 codec->block_align = icodec->block_align;
6291d7e4
AK
1552 break;
1553 case AVMEDIA_TYPE_VIDEO:
03f30c83
AK
1554 codec->pix_fmt = icodec->pix_fmt;
1555 codec->width = icodec->width;
1556 codec->height = icodec->height;
1557 codec->has_b_frames = icodec->has_b_frames;
538bf767
AK
1558 if (ost->frame_aspect_ratio)
1559 sar = av_d2q(ost->frame_aspect_ratio * codec->height / codec->width, 255);
1560 else if (ist->st->sample_aspect_ratio.num)
1561 sar = ist->st->sample_aspect_ratio;
1562 else
1563 sar = icodec->sample_aspect_ratio;
1564 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
6291d7e4
AK
1565 break;
1566 case AVMEDIA_TYPE_SUBTITLE:
03f30c83 1567 codec->width = icodec->width;
6291d7e4
AK
1568 codec->height = icodec->height;
1569 break;
1570 case AVMEDIA_TYPE_DATA:
3ccd1580 1571 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1572 break;
1573 default:
1574 abort();
1575 }
1576 } else {
2994913d
AK
1577 if (!ost->enc) {
1578 /* should only happen when a default codec is not present. */
1579 snprintf(error, sizeof(error), "Automatic encoder selection "
1580 "failed for output stream #%d:%d. Default encoder for "
1581 "format %s is probably disabled. Please choose an "
1582 "encoder manually.\n", ost->file_index, ost->index,
1583 oc->oformat->name);
1584 ret = AVERROR(EINVAL);
1585 goto dump_format;
1586 }
03f30c83 1587
3b266da3
AK
1588 if (ist)
1589 ist->decoding_needed = 1;
11fdb7e1 1590 ost->encoding_needed = 1;
03f30c83 1591
74b961db
AK
1592 /*
1593 * We want CFR output if and only if one of those is true:
1594 * 1) user specified output framerate with -r
1595 * 2) user specified -vsync cfr
1596 * 3) output format is CFR and the user didn't force vsync to
1597 * something else than CFR
1598 *
1599 * in such a case, set ost->frame_rate
1600 */
1601 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1602 !ost->frame_rate.num && ist &&
1603 (video_sync_method == VSYNC_CFR ||
1604 (video_sync_method == VSYNC_AUTO &&
1605 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
44b0b85f
AK
1606 ost->frame_rate = ist->framerate.num ? ist->framerate :
1607 ist->st->avg_frame_rate.num ?
1608 ist->st->avg_frame_rate :
1609 (AVRational){25, 1};
1610
74b961db
AK
1611 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1612 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1613 ost->frame_rate = ost->enc->supported_framerates[idx];
1614 }
1615 }
1616
369cb092
AK
1617 if (!ost->filter &&
1618 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1619 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1620 FilterGraph *fg;
1621 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1622 if (configure_filtergraph(fg)) {
3b266da3 1623 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
636ced8e 1624 exit_program(1);
3b266da3 1625 }
369cb092 1626 }
3b266da3 1627
369cb092
AK
1628 switch (codec->codec_type) {
1629 case AVMEDIA_TYPE_AUDIO:
1630 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1631 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1632 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1633 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1634 codec->time_base = (AVRational){ 1, codec->sample_rate };
1635 break;
1636 case AVMEDIA_TYPE_VIDEO:
74b961db 1637 codec->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1638
3b266da3
AK
1639 codec->width = ost->filter->filter->inputs[0]->w;
1640 codec->height = ost->filter->filter->inputs[0]->h;
1641 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1642 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1643 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1644 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1645 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1646
a5fd7c60
AK
1647 if (icodec &&
1648 (codec->width != icodec->width ||
1649 codec->height != icodec->height ||
1650 codec->pix_fmt != icodec->pix_fmt)) {
b7327887
AK
1651 codec->bits_per_raw_sample = 0;
1652 }
1653
19ad5673
AK
1654 if (ost->forced_keyframes)
1655 parse_forced_key_frames(ost->forced_keyframes, ost,
1656 ost->st->codec);
6291d7e4
AK
1657 break;
1658 case AVMEDIA_TYPE_SUBTITLE:
c9af8326 1659 codec->time_base = (AVRational){1, 1000};
6291d7e4
AK
1660 break;
1661 default:
1662 abort();
1663 break;
1664 }
1665 /* two pass mode */
515901fa 1666 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1667 char logfilename[1024];
1668 FILE *f;
1669
1670 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1671 ost->logfile_prefix ? ost->logfile_prefix :
1672 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1673 i);
6e8be949
AK
1674 if (!strcmp(ost->enc->name, "libx264")) {
1675 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1676 } else {
64334ddb
AK
1677 if (codec->flags & CODEC_FLAG_PASS1) {
1678 f = fopen(logfilename, "wb");
1679 if (!f) {
1680 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1681 logfilename, strerror(errno));
636ced8e 1682 exit_program(1);
64334ddb
AK
1683 }
1684 ost->logfile = f;
1685 } else {
1686 char *logbuffer;
1687 size_t logbuffer_size;
1688 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1689 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1690 logfilename);
636ced8e 1691 exit_program(1);
64334ddb
AK
1692 }
1693 codec->stats_in = logbuffer;
6291d7e4 1694 }
6e8be949 1695 }
6291d7e4
AK
1696 }
1697 }
6291d7e4
AK
1698 }
1699
1700 /* open each encoder */
4288e031 1701 for (i = 0; i < nb_output_streams; i++) {
2e215267 1702 ost = output_streams[i];
6291d7e4 1703 if (ost->encoding_needed) {
03f30c83 1704 AVCodec *codec = ost->enc;
3b266da3 1705 AVCodecContext *dec = NULL;
3b266da3
AK
1706
1707 if ((ist = get_input_stream(ost)))
1708 dec = ist->st->codec;
1709 if (dec && dec->subtitle_header) {
6291d7e4
AK
1710 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1711 if (!ost->st->codec->subtitle_header) {
1712 ret = AVERROR(ENOMEM);
1713 goto dump_format;
1714 }
1715 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1716 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1717 }
2473a45c
JG
1718 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1719 av_dict_set(&ost->opts, "threads", "auto", 0);
c854102d
NC
1720 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1721 if (ret == AVERROR_EXPERIMENTAL)
1722 abort_codec_experimental(codec, 1);
9a414d89 1723 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 1724 ost->file_index, ost->index);
6291d7e4
AK
1725 goto dump_format;
1726 }
6291d7e4
AK
1727 assert_avoptions(ost->opts);
1728 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1729 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1730 "It takes bits/s as argument, not kbits/s\n");
1731 extra_size += ost->st->codec->extradata_size;
d242d80e
AK
1732
1733 if (ost->st->codec->me_threshold)
2e215267 1734 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
df0229a7
MS
1735 } else {
1736 av_opt_set_dict(ost->st->codec, &ost->opts);
6291d7e4
AK
1737 }
1738 }
1739
630902a1
AK
1740 /* init input streams */
1741 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1742 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1743 goto dump_format;
6291d7e4 1744
2c474ddb
AK
1745 /* discard unused programs */
1746 for (i = 0; i < nb_input_files; i++) {
2e215267 1747 InputFile *ifile = input_files[i];
2c474ddb
AK
1748 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1749 AVProgram *p = ifile->ctx->programs[j];
1750 int discard = AVDISCARD_ALL;
1751
1752 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1753 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1754 discard = AVDISCARD_DEFAULT;
1755 break;
1756 }
1757 p->discard = discard;
1758 }
1759 }
1760
6291d7e4 1761 /* open files and write file headers */
af70aa45 1762 for (i = 0; i < nb_output_files; i++) {
2e215267 1763 oc = output_files[i]->ctx;
1bb77e51 1764 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
1765 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1766 char errbuf[128];
1e340af8
LB
1767 av_strerror(ret, errbuf, sizeof(errbuf));
1768 snprintf(error, sizeof(error),
1769 "Could not write header for output file #%d "
1770 "(incorrect codec parameters ?): %s",
1771 i, errbuf);
6291d7e4
AK
1772 ret = AVERROR(EINVAL);
1773 goto dump_format;
1774 }
2e215267 1775 assert_avoptions(output_files[i]->opts);
1bb77e51 1776 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
1777 want_sdp = 0;
1778 }
1779 }
1780
1781 dump_format:
1782 /* dump the file output parameters - cannot be done before in case
1783 of stream copy */
03f30c83 1784 for (i = 0; i < nb_output_files; i++) {
2e215267 1785 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
1786 }
1787
1788 /* dump the stream mapping */
e3245b26 1789 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
1790 for (i = 0; i < nb_input_streams; i++) {
1791 ist = input_streams[i];
1792
1793 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
1794 if (ist->filters[j]->graph->graph_desc) {
1795 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1796 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 1797 ist->filters[j]->name);
3b266da3
AK
1798 if (nb_filtergraphs > 1)
1799 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1800 av_log(NULL, AV_LOG_INFO, "\n");
1801 }
1802 }
1803 }
1804
e3245b26 1805 for (i = 0; i < nb_output_streams; i++) {
2e215267 1806 ost = output_streams[i];
4dbc6cee
AK
1807
1808 if (ost->attachment_filename) {
1809 /* an attached file */
1810 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1811 ost->attachment_filename, ost->file_index, ost->index);
1812 continue;
1813 }
3b266da3
AK
1814
1815 if (ost->filter && ost->filter->graph->graph_desc) {
1816 /* output from a complex graph */
cf6c38c6 1817 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
1818 if (nb_filtergraphs > 1)
1819 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1820
1821 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1822 ost->index, ost->enc ? ost->enc->name : "?");
1823 continue;
1824 }
1825
9a414d89 1826 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
1827 input_streams[ost->source_index]->file_index,
1828 input_streams[ost->source_index]->st->index,
e3245b26
AK
1829 ost->file_index,
1830 ost->index);
2e215267 1831 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 1832 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
1833 ost->sync_ist->file_index,
1834 ost->sync_ist->st->index);
3d813e4c 1835 if (ost->stream_copy)
e3245b26
AK
1836 av_log(NULL, AV_LOG_INFO, " (copy)");
1837 else
2e215267
AK
1838 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1839 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
1840 ost->enc ? ost->enc->name : "?");
1841 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
1842 }
1843
1844 if (ret) {
e3245b26 1845 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 1846 return ret;
6291d7e4
AK
1847 }
1848
1849 if (want_sdp) {
ea9367e9 1850 print_sdp();
6291d7e4
AK
1851 }
1852
eaf2d37a
AC
1853 return 0;
1854}
1855
c1ef30a6 1856/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
1857static int need_output(void)
1858{
1859 int i;
1860
1861 for (i = 0; i < nb_output_streams; i++) {
1862 OutputStream *ost = output_streams[i];
1863 OutputFile *of = output_files[ost->file_index];
1864 AVFormatContext *os = output_files[ost->file_index]->ctx;
1865
57d24225 1866 if (ost->finished ||
2f51ec2b
AK
1867 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1868 continue;
e58b75f7 1869 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
1870 int j;
1871 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 1872 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
1873 continue;
1874 }
1875
1876 return 1;
1877 }
1878
1879 return 0;
1880}
1881
83916029 1882static InputFile *select_input_file(void)
a508e7a1 1883{
83916029 1884 InputFile *ifile = NULL;
a508e7a1 1885 int64_t ipts_min = INT64_MAX;
83916029 1886 int i;
a508e7a1
AK
1887
1888 for (i = 0; i < nb_input_streams; i++) {
1889 InputStream *ist = input_streams[i];
1890 int64_t ipts = ist->last_dts;
1891
0b26ef42 1892 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
1893 continue;
1894 if (!input_files[ist->file_index]->eof_reached) {
1895 if (ipts < ipts_min) {
1896 ipts_min = ipts;
83916029 1897 ifile = input_files[ist->file_index];
a508e7a1
AK
1898 }
1899 }
1900 }
1901
83916029 1902 return ifile;
a508e7a1
AK
1903}
1904
47b812e9 1905#if HAVE_PTHREADS
5db5169e
AK
1906static void *input_thread(void *arg)
1907{
1908 InputFile *f = arg;
1909 int ret = 0;
1910
1911 while (!transcoding_finished && ret >= 0) {
1912 AVPacket pkt;
1913 ret = av_read_frame(f->ctx, &pkt);
1914
1915 if (ret == AVERROR(EAGAIN)) {
896bb0d7 1916 av_usleep(10000);
5db5169e
AK
1917 ret = 0;
1918 continue;
1919 } else if (ret < 0)
1920 break;
1921
1922 pthread_mutex_lock(&f->fifo_lock);
1923 while (!av_fifo_space(f->fifo))
1924 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1925
1926 av_dup_packet(&pkt);
1927 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1928
1929 pthread_mutex_unlock(&f->fifo_lock);
1930 }
1931
1932 f->finished = 1;
1933 return NULL;
1934}
1935
1936static void free_input_threads(void)
1937{
1938 int i;
1939
1940 if (nb_input_files == 1)
1941 return;
1942
1943 transcoding_finished = 1;
1944
1945 for (i = 0; i < nb_input_files; i++) {
1946 InputFile *f = input_files[i];
1947 AVPacket pkt;
1948
9034b0ed 1949 if (!f->fifo || f->joined)
5db5169e
AK
1950 continue;
1951
1952 pthread_mutex_lock(&f->fifo_lock);
1953 while (av_fifo_size(f->fifo)) {
1954 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1955 av_free_packet(&pkt);
1956 }
1957 pthread_cond_signal(&f->fifo_cond);
1958 pthread_mutex_unlock(&f->fifo_lock);
1959
1960 pthread_join(f->thread, NULL);
1961 f->joined = 1;
1962
1963 while (av_fifo_size(f->fifo)) {
1964 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1965 av_free_packet(&pkt);
1966 }
1967 av_fifo_free(f->fifo);
1968 }
1969}
1970
1971static int init_input_threads(void)
1972{
1973 int i, ret;
1974
1975 if (nb_input_files == 1)
1976 return 0;
1977
1978 for (i = 0; i < nb_input_files; i++) {
1979 InputFile *f = input_files[i];
1980
1981 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
1982 return AVERROR(ENOMEM);
1983
1984 pthread_mutex_init(&f->fifo_lock, NULL);
1985 pthread_cond_init (&f->fifo_cond, NULL);
1986
1987 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
1988 return AVERROR(ret);
1989 }
1990 return 0;
1991}
1992
1993static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
1994{
1995 int ret = 0;
1996
1997 pthread_mutex_lock(&f->fifo_lock);
1998
1999 if (av_fifo_size(f->fifo)) {
2000 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2001 pthread_cond_signal(&f->fifo_cond);
2002 } else {
2003 if (f->finished)
2004 ret = AVERROR_EOF;
2005 else
2006 ret = AVERROR(EAGAIN);
2007 }
2008
2009 pthread_mutex_unlock(&f->fifo_lock);
2010
2011 return ret;
2012}
2013#endif
2014
2015static int get_input_packet(InputFile *f, AVPacket *pkt)
2016{
b4a5a292
AK
2017 if (f->rate_emu) {
2018 int i;
2019 for (i = 0; i < f->nb_streams; i++) {
2020 InputStream *ist = input_streams[f->ist_index + i];
2021 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2022 int64_t now = av_gettime() - ist->start;
2023 if (pts > now)
2024 return AVERROR(EAGAIN);
2025 }
2026 }
2027
47b812e9 2028#if HAVE_PTHREADS
5db5169e
AK
2029 if (nb_input_files > 1)
2030 return get_input_packet_mt(f, pkt);
2031#endif
2032 return av_read_frame(f->ctx, pkt);
2033}
2034
0b26ef42
AK
2035static int got_eagain(void)
2036{
2037 int i;
2038 for (i = 0; i < nb_input_files; i++)
2039 if (input_files[i]->eagain)
2040 return 1;
2041 return 0;
2042}
2043
2044static void reset_eagain(void)
2045{
2046 int i;
2047 for (i = 0; i < nb_input_files; i++)
2048 input_files[i]->eagain = 0;
2049}
2050
c1ef30a6 2051/*
0c00fd80
AK
2052 * Read one packet from an input file and send it for
2053 * - decoding -> lavfi (audio/video)
2054 * - decoding -> encoding -> muxing (subtitles)
2055 * - muxing (streamcopy)
2056 *
c1ef30a6 2057 * Return
0c00fd80
AK
2058 * - 0 -- one packet was read and processed
2059 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2060 * this function should be called again
2061 * - AVERROR_EOF -- this function should not be called again
2062 */
2063static int process_input(void)
2064{
2065 InputFile *ifile;
2066 AVFormatContext *is;
2067 InputStream *ist;
2068 AVPacket pkt;
2069 int ret, i, j;
2070
2071 /* select the stream that we must read now */
2072 ifile = select_input_file();
2073 /* if none, if is finished */
2074 if (!ifile) {
2075 if (got_eagain()) {
2076 reset_eagain();
2077 av_usleep(10000);
2078 return AVERROR(EAGAIN);
2079 }
2080 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2081 return AVERROR_EOF;
2082 }
2083
2084 is = ifile->ctx;
2085 ret = get_input_packet(ifile, &pkt);
2086
2087 if (ret == AVERROR(EAGAIN)) {
2088 ifile->eagain = 1;
2089 return ret;
2090 }
2091 if (ret < 0) {
2092 if (ret != AVERROR_EOF) {
2093 print_error(is->filename, ret);
2094 if (exit_on_error)
636ced8e 2095 exit_program(1);
0c00fd80
AK
2096 }
2097 ifile->eof_reached = 1;
2098
2099 for (i = 0; i < ifile->nb_streams; i++) {
2100 ist = input_streams[ifile->ist_index + i];
2101 if (ist->decoding_needed)
2102 output_packet(ist, NULL);
2103
2104 /* mark all outputs that don't go through lavfi as finished */
2105 for (j = 0; j < nb_output_streams; j++) {
2106 OutputStream *ost = output_streams[j];
2107
2108 if (ost->source_index == ifile->ist_index + i &&
2109 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2110 ost->finished= 1;
0c00fd80
AK
2111 }
2112 }
2113
3c0df905 2114 return AVERROR(EAGAIN);
0c00fd80
AK
2115 }
2116
2117 reset_eagain();
2118
2119 if (do_pkt_dump) {
2120 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2121 is->streams[pkt.stream_index]);
2122 }
2123 /* the following test is needed in case new streams appear
2124 dynamically in stream : we ignore them */
2125 if (pkt.stream_index >= ifile->nb_streams)
2126 goto discard_packet;
2127
2128 ist = input_streams[ifile->ist_index + pkt.stream_index];
2129 if (ist->discard)
2130 goto discard_packet;
2131
2132 if (pkt.dts != AV_NOPTS_VALUE)
2133 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2134 if (pkt.pts != AV_NOPTS_VALUE)
2135 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2136
2137 if (pkt.pts != AV_NOPTS_VALUE)
2138 pkt.pts *= ist->ts_scale;
2139 if (pkt.dts != AV_NOPTS_VALUE)
2140 pkt.dts *= ist->ts_scale;
2141
2142 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2143 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2144 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2145 int64_t delta = pkt_dts - ist->next_dts;
2146
2147 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2148 ifile->ts_offset -= delta;
2149 av_log(NULL, AV_LOG_DEBUG,
2150 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2151 delta, ifile->ts_offset);
2152 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2153 if (pkt.pts != AV_NOPTS_VALUE)
2154 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2155 }
2156 }
2157
2158 ret = output_packet(ist, &pkt);
2159 if (ret < 0) {
2160 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2161 ist->file_index, ist->st->index);
2162 if (exit_on_error)
636ced8e 2163 exit_program(1);
0c00fd80
AK
2164 }
2165
2166discard_packet:
2167 av_free_packet(&pkt);
2168
2169 return 0;
2170}
2171
eaf2d37a
AC
2172/*
2173 * The following code is the main loop of the file converter
2174 */
ea9367e9 2175static int transcode(void)
eaf2d37a 2176{
0c00fd80
AK
2177 int ret, i, need_input = 1;
2178 AVFormatContext *os;
eaf2d37a
AC
2179 OutputStream *ost;
2180 InputStream *ist;
eaf2d37a
AC
2181 int64_t timer_start;
2182
ea9367e9 2183 ret = transcode_init();
eaf2d37a
AC
2184 if (ret < 0)
2185 goto fail;
2186
e3245b26 2187 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2188 term_init();
2189
2190 timer_start = av_gettime();
2191
47b812e9 2192#if HAVE_PTHREADS
5db5169e
AK
2193 if ((ret = init_input_threads()) < 0)
2194 goto fail;
2195#endif
2196
c0fbf971 2197 while (!received_sigterm) {
3b266da3 2198 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2199 if (!need_output()) {
2200 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2201 break;
2f51ec2b 2202 }
3b266da3 2203
0c00fd80
AK
2204 /* read and process one input packet if needed */
2205 if (need_input) {
2206 ret = process_input();
2207 if (ret == AVERROR_EOF)
2208 need_input = 0;
6291d7e4
AK
2209 }
2210
0c00fd80 2211 ret = poll_filters();
6291d7e4 2212 if (ret < 0) {
0c00fd80 2213 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2214 continue;
6291d7e4 2215
0c00fd80
AK
2216 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2217 break;
6291d7e4
AK
2218 }
2219
6291d7e4 2220 /* dump report by using the output first video and audio streams */
ea9367e9 2221 print_report(0, timer_start);
6291d7e4 2222 }
47b812e9 2223#if HAVE_PTHREADS
5db5169e
AK
2224 free_input_threads();
2225#endif
6291d7e4
AK
2226
2227 /* at the end of stream, we must flush the decoder buffers */
2228 for (i = 0; i < nb_input_streams; i++) {
2e215267 2229 ist = input_streams[i];
9e8aae44 2230 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2231 output_packet(ist, NULL);
6291d7e4
AK
2232 }
2233 }
560f7774 2234 poll_filters();
ea9367e9 2235 flush_encoders();
6291d7e4
AK
2236
2237 term_exit();
2238
2239 /* write the trailer if needed and close file */
7636c8c6 2240 for (i = 0; i < nb_output_files; i++) {
2e215267 2241 os = output_files[i]->ctx;
6291d7e4
AK
2242 av_write_trailer(os);
2243 }
2244
2245 /* dump report by using the first video and audio streams */
ea9367e9 2246 print_report(1, timer_start);
6291d7e4
AK
2247
2248 /* close each encoder */
4288e031 2249 for (i = 0; i < nb_output_streams; i++) {
2e215267 2250 ost = output_streams[i];
6291d7e4
AK
2251 if (ost->encoding_needed) {
2252 av_freep(&ost->st->codec->stats_in);
2253 avcodec_close(ost->st->codec);
2254 }
6291d7e4
AK
2255 }
2256
2257 /* close each decoder */
2258 for (i = 0; i < nb_input_streams; i++) {
2e215267 2259 ist = input_streams[i];
6291d7e4
AK
2260 if (ist->decoding_needed) {
2261 avcodec_close(ist->st->codec);
2262 }
2263 }
2264
2265 /* finished ! */
2266 ret = 0;
2267
2268 fail:
47b812e9 2269#if HAVE_PTHREADS
5db5169e
AK
2270 free_input_threads();
2271#endif
6291d7e4 2272
4288e031
AK
2273 if (output_streams) {
2274 for (i = 0; i < nb_output_streams; i++) {
2e215267 2275 ost = output_streams[i];
6291d7e4 2276 if (ost) {
3d813e4c 2277 if (ost->stream_copy)
6291d7e4
AK
2278 av_freep(&ost->st->codec->extradata);
2279 if (ost->logfile) {
2280 fclose(ost->logfile);
2281 ost->logfile = NULL;
2282 }
6291d7e4 2283 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2284 av_free(ost->forced_kf_pts);
6291d7e4 2285 av_dict_free(&ost->opts);
5c7db097 2286 av_dict_free(&ost->resample_opts);
6291d7e4
AK
2287 }
2288 }
6291d7e4
AK
2289 }
2290 return ret;
2291}
2292
f5e66827 2293static int64_t getutime(void)
a2c0b830 2294{
f5e66827
AK
2295#if HAVE_GETRUSAGE
2296 struct rusage rusage;
a2c0b830 2297
f5e66827
AK
2298 getrusage(RUSAGE_SELF, &rusage);
2299 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2300#elif HAVE_GETPROCESSTIMES
2301 HANDLE proc;
2302 FILETIME c, e, k, u;
2303 proc = GetCurrentProcess();
2304 GetProcessTimes(proc, &c, &e, &k, &u);
2305 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2306#else
2307 return av_gettime();
2308#endif
a2c0b830
AK
2309}
2310
f5e66827 2311static int64_t getmaxrss(void)
6291d7e4 2312{
f5e66827
AK
2313#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2314 struct rusage rusage;
2315 getrusage(RUSAGE_SELF, &rusage);
2316 return (int64_t)rusage.ru_maxrss * 1024;
2317#elif HAVE_GETPROCESSMEMORYINFO
2318 HANDLE proc;
2319 PROCESS_MEMORY_COUNTERS memcounters;
2320 proc = GetCurrentProcess();
2321 memcounters.cb = sizeof(memcounters);
2322 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2323 return memcounters.PeakPagefileUsage;
2324#else
6291d7e4 2325 return 0;
f5e66827 2326#endif
6291d7e4
AK
2327}
2328
6291d7e4
AK
2329int main(int argc, char **argv)
2330{
77bd1bc7 2331 int ret;
6291d7e4
AK
2332 int64_t ti;
2333
636ced8e 2334 register_exit(avconv_cleanup);
5e3f9979 2335
6291d7e4 2336 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2337 parse_loglevel(argc, argv, options);
6291d7e4
AK
2338
2339 avcodec_register_all();
2340#if CONFIG_AVDEVICE
2341 avdevice_register_all();
2342#endif
6291d7e4 2343 avfilter_register_all();
6291d7e4 2344 av_register_all();
776f2bb9 2345 avformat_network_init();
6291d7e4 2346
6291d7e4
AK
2347 show_banner();
2348
77bd1bc7
AK
2349 /* parse options and open all input/output files */
2350 ret = avconv_parse_options(argc, argv);
2351 if (ret < 0)
636ced8e 2352 exit_program(1);
6291d7e4 2353
7636c8c6 2354 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2355 show_usage();
e3245b26 2356 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
636ced8e 2357 exit_program(1);
6291d7e4
AK
2358 }
2359
2360 /* file converter / grab */
2361 if (nb_output_files <= 0) {
2362 fprintf(stderr, "At least one output file must be specified\n");
636ced8e 2363 exit_program(1);
6291d7e4
AK
2364 }
2365
6291d7e4 2366 ti = getutime();
ea9367e9 2367 if (transcode() < 0)
636ced8e 2368 exit_program(1);
6291d7e4
AK
2369 ti = getutime() - ti;
2370 if (do_benchmark) {
2371 int maxrss = getmaxrss() / 1024;
2372 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2373 }
2374
636ced8e 2375 exit_program(0);
dad09ff9 2376 return 0;
6291d7e4 2377}