libx264: Support bitrate reconfiguration
[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 <stdint.h>
31
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32#include "libavformat/avformat.h"
33#include "libavdevice/avdevice.h"
34#include "libswscale/swscale.h"
bcb82fe1 35#include "libavresample/avresample.h"
6291d7e4 36#include "libavutil/opt.h"
a903f8f0 37#include "libavutil/channel_layout.h"
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38#include "libavutil/parseutils.h"
39#include "libavutil/samplefmt.h"
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40#include "libavutil/fifo.h"
41#include "libavutil/intreadwrite.h"
42#include "libavutil/dict.h"
43#include "libavutil/mathematics.h"
44#include "libavutil/pixdesc.h"
45#include "libavutil/avstring.h"
46#include "libavutil/libm.h"
64dca32c 47#include "libavutil/imgutils.h"
896bb0d7 48#include "libavutil/time.h"
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49#include "libavformat/os_support.h"
50
6291d7e4 51# include "libavfilter/avfilter.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
6291d7e4 87static int nb_frames_drop = 0;
6291d7e4 88
6291d7e4 89
3460dd8a 90
47b812e9 91#if HAVE_PTHREADS
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92/* signal to input threads that they should exit; set by the main thread */
93static int transcoding_finished;
94#endif
95
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96#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
97
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98InputStream **input_streams = NULL;
99int nb_input_streams = 0;
100InputFile **input_files = NULL;
101int nb_input_files = 0;
6b779ccc 102
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103OutputStream **output_streams = NULL;
104int nb_output_streams = 0;
105OutputFile **output_files = NULL;
106int nb_output_files = 0;
6b779ccc 107
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108FilterGraph **filtergraphs;
109int nb_filtergraphs;
575ec4e1 110
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111static void term_exit(void)
112{
113 av_log(NULL, AV_LOG_QUIET, "");
114}
115
116static volatile int received_sigterm = 0;
117static volatile int received_nb_signals = 0;
118
119static void
120sigterm_handler(int sig)
121{
122 received_sigterm = sig;
123 received_nb_signals++;
124 term_exit();
125}
126
127static void term_init(void)
128{
7636c8c6 129 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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130 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
131#ifdef SIGXCPU
132 signal(SIGXCPU, sigterm_handler);
133#endif
134}
135
2abe947a 136static int decode_interrupt_cb(void *ctx)
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137{
138 return received_nb_signals > 1;
139}
140
f5e66827 141const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
2abe947a 142
636ced8e 143static void avconv_cleanup(int ret)
6291d7e4 144{
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145 int i, j;
146
147 for (i = 0; i < nb_filtergraphs; i++) {
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148 FilterGraph *fg = filtergraphs[i];
149 avfilter_graph_free(&fg->graph);
150 for (j = 0; j < fg->nb_inputs; j++) {
151 av_freep(&fg->inputs[j]->name);
152 av_freep(&fg->inputs[j]);
cf6c38c6 153 }
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154 av_freep(&fg->inputs);
155 for (j = 0; j < fg->nb_outputs; j++) {
156 av_freep(&fg->outputs[j]->name);
157 av_freep(&fg->outputs[j]);
cf6c38c6 158 }
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159 av_freep(&fg->outputs);
160 av_freep(&fg->graph_desc);
161
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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++) {
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168 OutputFile *of = output_files[i];
169 AVFormatContext *s = of->ctx;
274e134e 170 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
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171 avio_close(s->pb);
172 avformat_free_context(s);
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173 av_dict_free(&of->opts);
174
2e215267 175 av_freep(&output_files[i]);
6291d7e4 176 }
1135a071 177 for (i = 0; i < nb_output_streams; i++) {
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178 OutputStream *ost = output_streams[i];
179 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
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180 while (bsfc) {
181 AVBitStreamFilterContext *next = bsfc->next;
182 av_bitstream_filter_close(bsfc);
183 bsfc = next;
184 }
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185 ost->bitstream_filters = NULL;
186 av_frame_free(&ost->filtered_frame);
187
188 av_parser_close(ost->parser);
ac646076 189
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190 av_freep(&ost->forced_keyframes);
191 av_freep(&ost->avfilter);
192 av_freep(&ost->logfile_prefix);
c872d310 193
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194 avcodec_free_context(&ost->enc_ctx);
195
2e215267 196 av_freep(&output_streams[i]);
1135a071 197 }
7636c8c6 198 for (i = 0; i < nb_input_files; i++) {
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199 avformat_close_input(&input_files[i]->ctx);
200 av_freep(&input_files[i]);
6291d7e4 201 }
9179f27c 202 for (i = 0; i < nb_input_streams; i++) {
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203 InputStream *ist = input_streams[i];
204
205 av_frame_free(&ist->decoded_frame);
206 av_frame_free(&ist->filter_frame);
f3a6ad22 207 av_dict_free(&ist->decoder_opts);
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208 av_freep(&ist->filters);
209 av_freep(&ist->hwaccel_device);
210
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211 avcodec_free_context(&ist->dec_ctx);
212
2e215267 213 av_freep(&input_streams[i]);
9179f27c 214 }
6291d7e4 215
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216 if (vstats_file)
217 fclose(vstats_file);
218 av_free(vstats_filename);
219
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220 av_freep(&input_streams);
221 av_freep(&input_files);
4288e031 222 av_freep(&output_streams);
af70aa45 223 av_freep(&output_files);
6291d7e4 224
6291d7e4 225 uninit_opts();
6291d7e4 226
776f2bb9 227 avformat_network_deinit();
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228
229 if (received_sigterm) {
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230 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
231 (int) received_sigterm);
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232 exit (255);
233 }
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234}
235
f5e66827 236void assert_avoptions(AVDictionary *m)
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237{
238 AVDictionaryEntry *t;
239 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 240 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
636ced8e 241 exit_program(1);
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242 }
243}
244
c854102d 245static void abort_codec_experimental(AVCodec *c, int encoder)
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246{
247 const char *codec_string = encoder ? "encoder" : "decoder";
248 AVCodec *codec;
c854102d
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249 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
250 "results.\nAdd '-strict experimental' if you want to use it.\n",
251 codec_string, c->name);
252 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
253 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
254 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
255 codec_string, codec->name);
636ced8e 256 exit_program(1);
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257}
258
c1ef30a6 259/*
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260 * Update the requested input sample format based on the output sample format.
261 * This is currently only used to request float output from decoders which
262 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
263 * Ideally this will be removed in the future when decoders do not do format
264 * conversion and only output in their native format.
265 */
266static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
267 AVCodecContext *enc)
268{
269 /* if sample formats match or a decoder sample format has already been
270 requested, just return */
271 if (enc->sample_fmt == dec->sample_fmt ||
272 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
273 return;
274
275 /* if decoder supports more than one output format */
276 if (dec_codec && dec_codec->sample_fmts &&
277 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
278 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
279 const enum AVSampleFormat *p;
fd41cb43
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280 int min_dec = INT_MAX, min_inc = INT_MAX;
281 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
282 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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283
284 /* find a matching sample format in the encoder */
285 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
286 if (*p == enc->sample_fmt) {
287 dec->request_sample_fmt = *p;
288 return;
fd41cb43
JR
289 } else {
290 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
291 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
292 int fmt_diff = 32 * abs(dfmt - efmt);
293 if (av_sample_fmt_is_planar(*p) !=
294 av_sample_fmt_is_planar(enc->sample_fmt))
295 fmt_diff++;
296 if (dfmt == efmt) {
297 min_inc = fmt_diff;
298 inc_fmt = *p;
299 } else if (dfmt > efmt) {
300 if (fmt_diff < min_inc) {
301 min_inc = fmt_diff;
302 inc_fmt = *p;
303 }
304 } else {
305 if (fmt_diff < min_dec) {
306 min_dec = fmt_diff;
307 dec_fmt = *p;
308 }
309 }
310 }
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311 }
312
313 /* if none match, provide the one that matches quality closest */
fd41cb43 314 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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315 }
316}
317
f15f02c2 318static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 319{
f15f02c2 320 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
38313626 321 AVCodecContext *avctx = ost->enc_ctx;
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322 int ret;
323
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324 /*
325 * Audio encoders may split the packets -- #frames in != #packets out.
326 * But there is no reordering, so we can limit the number of output packets
327 * by simply dropping them here.
328 * Counting encoded video frames needs to be done separately because of
329 * reordering, see do_video_out()
330 */
331 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
JR
332 if (ost->frame_number >= ost->max_frames) {
333 av_free_packet(pkt);
99932847 334 return;
c9594fe0 335 }
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336 ost->frame_number++;
337 }
338
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AD
339 while (bsfc) {
340 AVPacket new_pkt = *pkt;
341 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
342 &new_pkt.data, &new_pkt.size,
343 pkt->data, pkt->size,
344 pkt->flags & AV_PKT_FLAG_KEY);
345 if (a > 0) {
6291d7e4 346 av_free_packet(pkt);
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347 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
348 av_buffer_default_free, NULL, 0);
349 if (!new_pkt.buf)
636ced8e 350 exit_program(1);
7636c8c6 351 } else if (a < 0) {
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352 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
353 bsfc->filter->name, pkt->stream_index,
354 avctx->codec ? avctx->codec->name : "copy");
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355 print_error("", a);
356 if (exit_on_error)
636ced8e 357 exit_program(1);
6291d7e4 358 }
7636c8c6 359 *pkt = new_pkt;
6291d7e4 360
7636c8c6 361 bsfc = bsfc->next;
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362 }
363
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364 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
365 ost->last_mux_dts != AV_NOPTS_VALUE &&
366 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
367 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
368 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
369 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
370 if (exit_on_error) {
371 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
636ced8e 372 exit_program(1);
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373 }
374 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
375 "in incorrect timestamps in the output file.\n",
376 ost->last_mux_dts + 1);
377 pkt->dts = ost->last_mux_dts + 1;
378 if (pkt->pts != AV_NOPTS_VALUE)
379 pkt->pts = FFMAX(pkt->pts, pkt->dts);
380 }
381 ost->last_mux_dts = pkt->dts;
382
baeb59d8 383 ost->data_size += pkt->size;
47543450 384 ost->packets_written++;
baeb59d8 385
61a09968 386 pkt->stream_index = ost->index;
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AD
387 ret = av_interleaved_write_frame(s, pkt);
388 if (ret < 0) {
6291d7e4 389 print_error("av_interleaved_write_frame()", ret);
636ced8e 390 exit_program(1);
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391 }
392}
393
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394static int check_recording_time(OutputStream *ost)
395{
2e215267 396 OutputFile *of = output_files[ost->file_index];
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397
398 if (of->recording_time != INT64_MAX &&
38313626 399 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
1270e12e 400 AV_TIME_BASE_Q) >= 0) {
57d24225 401 ost->finished = 1;
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402 return 0;
403 }
404 return 1;
405}
406
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407static void do_audio_out(AVFormatContext *s, OutputStream *ost,
408 AVFrame *frame)
ee458cb1 409{
38313626 410 AVCodecContext *enc = ost->enc_ctx;
ee458cb1 411 AVPacket pkt;
369cb092 412 int got_packet = 0;
ee458cb1
JR
413
414 av_init_packet(&pkt);
415 pkt.data = NULL;
416 pkt.size = 0;
417
369cb092 418 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 419 frame->pts = ost->sync_opts;
369cb092 420 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 421
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422 ost->samples_encoded += frame->nb_samples;
423 ost->frames_encoded++;
424
ee458cb1
JR
425 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
426 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
636ced8e 427 exit_program(1);
ee458cb1
JR
428 }
429
430 if (got_packet) {
ee458cb1
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431 if (pkt.pts != AV_NOPTS_VALUE)
432 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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433 if (pkt.dts != AV_NOPTS_VALUE)
434 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
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435 if (pkt.duration > 0)
436 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
437
438 write_frame(s, &pkt, ost);
ee458cb1 439 }
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440}
441
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442static void do_subtitle_out(AVFormatContext *s,
443 OutputStream *ost,
444 InputStream *ist,
445 AVSubtitle *sub,
446 int64_t pts)
447{
448 static uint8_t *subtitle_out = NULL;
449 int subtitle_out_max_size = 1024 * 1024;
450 int subtitle_out_size, nb, i;
451 AVCodecContext *enc;
452 AVPacket pkt;
453
454 if (pts == AV_NOPTS_VALUE) {
e3245b26 455 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 456 if (exit_on_error)
636ced8e 457 exit_program(1);
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458 return;
459 }
460
38313626 461 enc = ost->enc_ctx;
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462
463 if (!subtitle_out) {
464 subtitle_out = av_malloc(subtitle_out_max_size);
465 }
466
467 /* Note: DVB subtitle need one packet to draw them and one other
468 packet to clear them */
469 /* XXX: signal it in the codec context ? */
36ef5369 470 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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471 nb = 2;
472 else
473 nb = 1;
474
7636c8c6 475 for (i = 0; i < nb; i++) {
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476 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
477 if (!check_recording_time(ost))
478 return;
479
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480 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
481 // start_display_time is required to be 0
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482 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
483 sub->end_display_time -= sub->start_display_time;
6291d7e4 484 sub->start_display_time = 0;
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485
486 ost->frames_encoded++;
487
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488 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
489 subtitle_out_max_size, sub);
490 if (subtitle_out_size < 0) {
e3245b26 491 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
636ced8e 492 exit_program(1);
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493 }
494
495 av_init_packet(&pkt);
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496 pkt.data = subtitle_out;
497 pkt.size = subtitle_out_size;
7636c8c6 498 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 499 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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500 /* XXX: the pts correction is handled here. Maybe handling
501 it in the codec would be better */
502 if (i == 0)
503 pkt.pts += 90 * sub->start_display_time;
504 else
505 pkt.pts += 90 * sub->end_display_time;
506 }
f15f02c2 507 write_frame(s, &pkt, ost);
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508 }
509}
510
87ef060c
AC
511static void do_video_out(AVFormatContext *s,
512 OutputStream *ost,
87ef060c 513 AVFrame *in_picture,
fb722a90 514 int *frame_size)
87ef060c 515{
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516 int ret, format_video_sync;
517 AVPacket pkt;
38313626 518 AVCodecContext *enc = ost->enc_ctx;
87ef060c
AC
519
520 *frame_size = 0;
521
553735f5 522 format_video_sync = video_sync_method;
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523 if (format_video_sync == VSYNC_AUTO)
524 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
525 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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526 if (format_video_sync != VSYNC_PASSTHROUGH &&
527 ost->frame_number &&
528 in_picture->pts != AV_NOPTS_VALUE &&
529 in_picture->pts < ost->sync_opts) {
d43040e2 530 nb_frames_drop++;
aa499568
VG
531 av_log(NULL, AV_LOG_WARNING,
532 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
533 ost->frame_number, ost->st->index, in_picture->pts);
87ef060c 534 return;
d43040e2 535 }
87ef060c 536
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537 if (in_picture->pts == AV_NOPTS_VALUE)
538 in_picture->pts = ost->sync_opts;
539 ost->sync_opts = in_picture->pts;
540
541
1270e12e 542 if (!ost->frame_number)
74b961db 543 ost->first_pts = in_picture->pts;
1270e12e 544
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545 av_init_packet(&pkt);
546 pkt.data = NULL;
547 pkt.size = 0;
6291d7e4 548
a83c0da5 549 if (ost->frame_number >= ost->max_frames)
39885a4b 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;
6291d7e4 567
38313626 568 if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
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569 ost->top_field_first >= 0)
570 in_picture->top_field_first = !!ost->top_field_first;
571
38313626 572 in_picture->quality = enc->global_quality;
39885a4b 573 if (!enc->me_threshold)
9b2dc295 574 in_picture->pict_type = 0;
39885a4b 575 if (ost->forced_kf_index < ost->forced_kf_count &&
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576 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
577 in_picture->pict_type = AV_PICTURE_TYPE_I;
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578 ost->forced_kf_index++;
579 }
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580
581 ost->frames_encoded++;
582
9b2dc295 583 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
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584 if (ret < 0) {
585 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
636ced8e 586 exit_program(1);
39885a4b 587 }
6291d7e4 588
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589 if (got_packet) {
590 if (pkt.pts != AV_NOPTS_VALUE)
591 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
592 if (pkt.dts != AV_NOPTS_VALUE)
593 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 594
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595 write_frame(s, &pkt, ost);
596 *frame_size = pkt.size;
324fbadf 597
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598 /* if two pass, output log */
599 if (ost->logfile && enc->stats_out) {
600 fprintf(ost->logfile, "%s", enc->stats_out);
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601 }
602 }
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603 }
604 ost->sync_opts++;
605 /*
606 * For video, number of frames in == number of packets out.
607 * But there may be reordering, so we can't throw away frames on encoder
608 * flush, we need to limit them here, before they go into encoder.
609 */
610 ost->frame_number++;
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611}
612
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613static double psnr(double d)
614{
615 return -10.0 * log(d) / log(10.0);
6291d7e4
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616}
617
70478746 618static void do_video_stats(OutputStream *ost, int frame_size)
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619{
620 AVCodecContext *enc;
621 int frame_number;
622 double ti1, bitrate, avg_bitrate;
623
624 /* this is executed just the first time do_video_stats is called */
625 if (!vstats_file) {
626 vstats_file = fopen(vstats_filename, "w");
627 if (!vstats_file) {
628 perror("fopen");
636ced8e 629 exit_program(1);
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630 }
631 }
632
38313626 633 enc = ost->enc_ctx;
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634 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
635 frame_number = ost->frame_number;
7636c8c6 636 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 637 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 638 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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639
640 fprintf(vstats_file,"f_size= %6d ", frame_size);
641 /* compute pts value */
642 ti1 = ost->sync_opts * av_q2d(enc->time_base);
643 if (ti1 < 0.01)
644 ti1 = 0.01;
645
7636c8c6 646 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
baeb59d8 647 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
6291d7e4 648 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
baeb59d8 649 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
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650 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
651 }
652}
653
c1ef30a6 654/*
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655 * Read one frame for lavfi output for ost and encode it.
656 */
657static int poll_filter(OutputStream *ost)
560f7774 658{
a4f50110 659 OutputFile *of = output_files[ost->file_index];
560f7774 660 AVFrame *filtered_frame = NULL;
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661 int frame_size, ret;
662
5b9c3b45 663 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
a4f50110 664 return AVERROR(ENOMEM);
674fa491 665 }
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666 filtered_frame = ost->filtered_frame;
667
668 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
669 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
9b2dc295 670 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
38313626 671 ost->enc_ctx->frame_size);
a4f50110 672 else
9b2dc295 673 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
369cb092 674
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675 if (ret < 0)
676 return ret;
560f7774 677
9b2dc295 678 if (filtered_frame->pts != AV_NOPTS_VALUE) {
56ee3f9d 679 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
9b2dc295 680 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
a4f50110 681 ost->filter->filter->inputs[0]->time_base,
38313626 682 ost->enc_ctx->time_base) -
56ee3f9d 683 av_rescale_q(start_time,
a4f50110 684 AV_TIME_BASE_Q,
38313626 685 ost->enc_ctx->time_base);
560f7774 686 }
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687
688 switch (ost->filter->filter->inputs[0]->type) {
689 case AVMEDIA_TYPE_VIDEO:
690 if (!ost->frame_aspect_ratio)
38313626 691 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
a4f50110 692
fb722a90 693 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
a4f50110 694 if (vstats_filename && frame_size)
70478746 695 do_video_stats(ost, frame_size);
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696 break;
697 case AVMEDIA_TYPE_AUDIO:
698 do_audio_out(of->ctx, ost, filtered_frame);
699 break;
700 default:
701 // TODO support subtitle filters
702 av_assert0(0);
703 }
704
9b2dc295 705 av_frame_unref(filtered_frame);
a4f50110 706
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707 return 0;
708}
709
c1ef30a6 710/*
a4f50110
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711 * Read as many frames from possible from lavfi and encode them.
712 *
713 * Always read from the active stream with the lowest timestamp. If no frames
714 * are available for it then return EAGAIN and wait for more input. This way we
715 * can use lavfi sources that generate unlimited amount of frames without memory
716 * usage exploding.
717 */
718static int poll_filters(void)
719{
3c0df905 720 int i, j, ret = 0;
a4f50110
AK
721
722 while (ret >= 0 && !received_sigterm) {
723 OutputStream *ost = NULL;
724 int64_t min_pts = INT64_MAX;
725
726 /* choose output stream with the lowest timestamp */
727 for (i = 0; i < nb_output_streams; i++) {
728 int64_t pts = output_streams[i]->sync_opts;
729
57d24225 730 if (!output_streams[i]->filter || output_streams[i]->finished)
a4f50110
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731 continue;
732
38313626 733 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
a4f50110
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734 AV_TIME_BASE_Q);
735 if (pts < min_pts) {
736 min_pts = pts;
737 ost = output_streams[i];
738 }
739 }
740
741 if (!ost)
742 break;
743
744 ret = poll_filter(ost);
745
746 if (ret == AVERROR_EOF) {
3c0df905
AK
747 OutputFile *of = output_files[ost->file_index];
748
57d24225 749 ost->finished = 1;
a4f50110 750
3c0df905
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751 if (of->shortest) {
752 for (j = 0; j < of->ctx->nb_streams; j++)
753 output_streams[of->ost_index + j]->finished = 1;
754 }
a4f50110
AK
755
756 ret = 0;
757 } else if (ret == AVERROR(EAGAIN))
758 return 0;
759 }
760
761 return ret;
762}
763
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764static void print_final_stats(int64_t total_size)
765{
766 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
767 uint64_t data_size = 0;
768 float percent = -1.0;
47543450 769 int i, j;
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770
771 for (i = 0; i < nb_output_streams; i++) {
772 OutputStream *ost = output_streams[i];
38313626 773 switch (ost->enc_ctx->codec_type) {
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AK
774 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
775 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
776 default: other_size += ost->data_size; break;
777 }
38313626 778 extra_size += ost->enc_ctx->extradata_size;
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AK
779 data_size += ost->data_size;
780 }
781
782 if (data_size && total_size >= data_size)
783 percent = 100.0 * (total_size - data_size) / data_size;
784
785 av_log(NULL, AV_LOG_INFO, "\n");
786 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
787 video_size / 1024.0,
788 audio_size / 1024.0,
789 other_size / 1024.0,
790 extra_size / 1024.0);
791 if (percent >= 0.0)
792 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
793 else
794 av_log(NULL, AV_LOG_INFO, "unknown");
795 av_log(NULL, AV_LOG_INFO, "\n");
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AK
796
797 /* print verbose per-stream stats */
798 for (i = 0; i < nb_input_files; i++) {
799 InputFile *f = input_files[i];
800 uint64_t total_packets = 0, total_size = 0;
801
802 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
803 i, f->ctx->filename);
804
805 for (j = 0; j < f->nb_streams; j++) {
806 InputStream *ist = input_streams[f->ist_index + j];
41776ba9 807 enum AVMediaType type = ist->dec_ctx->codec_type;
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AK
808
809 total_size += ist->data_size;
810 total_packets += ist->nb_packets;
811
812 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
813 i, j, media_type_string(type));
814 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
815 ist->nb_packets, ist->data_size);
816
817 if (ist->decoding_needed) {
818 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
819 ist->frames_decoded);
820 if (type == AVMEDIA_TYPE_AUDIO)
821 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
822 av_log(NULL, AV_LOG_VERBOSE, "; ");
823 }
824
825 av_log(NULL, AV_LOG_VERBOSE, "\n");
826 }
827
828 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
829 total_packets, total_size);
830 }
831
832 for (i = 0; i < nb_output_files; i++) {
833 OutputFile *of = output_files[i];
834 uint64_t total_packets = 0, total_size = 0;
835
836 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
837 i, of->ctx->filename);
838
839 for (j = 0; j < of->ctx->nb_streams; j++) {
840 OutputStream *ost = output_streams[of->ost_index + j];
38313626 841 enum AVMediaType type = ost->enc_ctx->codec_type;
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842
843 total_size += ost->data_size;
844 total_packets += ost->packets_written;
845
846 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
847 i, j, media_type_string(type));
848 if (ost->encoding_needed) {
849 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
850 ost->frames_encoded);
851 if (type == AVMEDIA_TYPE_AUDIO)
852 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
853 av_log(NULL, AV_LOG_VERBOSE, "; ");
854 }
855
856 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
857 ost->packets_written, ost->data_size);
858
859 av_log(NULL, AV_LOG_VERBOSE, "\n");
860 }
861
862 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
863 total_packets, total_size);
864 }
a220b07b
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865}
866
ea9367e9 867static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
AK
868{
869 char buf[1024];
870 OutputStream *ost;
871 AVFormatContext *oc;
872 int64_t total_size;
873 AVCodecContext *enc;
874 int frame_number, vid, i;
875 double bitrate, ti1, pts;
876 static int64_t last_time = -1;
877 static int qp_histogram[52];
878
3460dd8a
AK
879 if (!print_stats && !is_last_report)
880 return;
881
6291d7e4
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882 if (!is_last_report) {
883 int64_t cur_time;
884 /* display the report every 0.5 seconds */
885 cur_time = av_gettime();
886 if (last_time == -1) {
887 last_time = cur_time;
888 return;
889 }
890 if ((cur_time - last_time) < 500000)
891 return;
892 last_time = cur_time;
893 }
894
895
2e215267 896 oc = output_files[0]->ctx;
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897
898 total_size = avio_size(oc->pb);
1b891d17 899 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
7636c8c6 900 total_size = avio_tell(oc->pb);
1b891d17
JG
901 if (total_size < 0) {
902 char errbuf[128];
903 av_strerror(total_size, errbuf, sizeof(errbuf));
904 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
905 "avio_tell() failed: %s\n", errbuf);
906 total_size = 0;
907 }
6291d7e4
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908
909 buf[0] = '\0';
910 ti1 = 1e10;
911 vid = 0;
ea9367e9 912 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 913 float q = -1;
2e215267 914 ost = output_streams[i];
38313626 915 enc = ost->enc_ctx;
3d813e4c 916 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 917 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
6291d7e4
AK
918 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
919 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
920 }
921 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 922 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
923
924 frame_number = ost->frame_number;
925 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
926 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
927 if (is_last_report)
6291d7e4 928 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 929 if (qp_hist) {
6291d7e4
AK
930 int j;
931 int qp = lrintf(q);
7636c8c6 932 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 933 qp_histogram[qp]++;
7636c8c6 934 for (j = 0; j < 32; j++)
d752509b 935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 936 }
7636c8c6 937 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 938 int j;
7636c8c6
AD
939 double error, error_sum = 0;
940 double scale, scale_sum = 0;
941 char type[3] = { 'Y','U','V' };
6291d7e4 942 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
943 for (j = 0; j < 3; j++) {
944 if (is_last_report) {
945 error = enc->error[j];
946 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
947 } else {
948 error = enc->coded_frame->error[j];
949 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 950 }
7636c8c6
AD
951 if (j)
952 scale /= 4;
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AK
953 error_sum += error;
954 scale_sum += scale;
7636c8c6 955 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 956 }
7636c8c6 957 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
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958 }
959 vid = 1;
960 }
961 /* compute min output value */
dc40d886 962 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
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AK
963 if ((pts < ti1) && (pts > 0))
964 ti1 = pts;
965 }
966 if (ti1 < 0.01)
967 ti1 = 0.01;
968
e3245b26 969 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 970
e3245b26 971 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
AK
972 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
973 (double)total_size / 1024, ti1, bitrate);
974
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975 if (nb_frames_drop)
976 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
977 nb_frames_drop);
6291d7e4 978
f5646a32 979 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 980
e3245b26 981 fflush(stderr);
6291d7e4 982
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AK
983 if (is_last_report)
984 print_final_stats(total_size);
baeb59d8 985
6291d7e4
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986}
987
ea9367e9 988static void flush_encoders(void)
4a4ce2e7
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989{
990 int i, ret;
991
ea9367e9 992 for (i = 0; i < nb_output_streams; i++) {
2e215267 993 OutputStream *ost = output_streams[i];
38313626 994 AVCodecContext *enc = ost->enc_ctx;
2e215267 995 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 996 int stop_encoding = 0;
6f1c66d5 997
b62b5cb6 998 if (!ost->encoding_needed)
6f1c66d5
AK
999 continue;
1000
38313626 1001 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1002 continue;
38313626 1003 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1004 continue;
1005
7636c8c6 1006 for (;;) {
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AK
1007 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1008 const char *desc;
6f1c66d5 1009
38313626 1010 switch (enc->codec_type) {
6f1c66d5 1011 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1012 encode = avcodec_encode_audio2;
1013 desc = "Audio";
6f1c66d5
AK
1014 break;
1015 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1016 encode = avcodec_encode_video2;
1017 desc = "Video";
369cb092
AK
1018 break;
1019 default:
1020 stop_encoding = 1;
1021 }
1022
1023 if (encode) {
1024 AVPacket pkt;
1025 int got_packet;
1026 av_init_packet(&pkt);
1027 pkt.data = NULL;
1028 pkt.size = 0;
1029
1030 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1031 if (ret < 0) {
369cb092 1032 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
636ced8e 1033 exit_program(1);
6f1c66d5 1034 }
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AK
1035 if (ost->logfile && enc->stats_out) {
1036 fprintf(ost->logfile, "%s", enc->stats_out);
1037 }
8e37038a 1038 if (!got_packet) {
ee458cb1
JR
1039 stop_encoding = 1;
1040 break;
1041 }
8e37038a
AK
1042 if (pkt.pts != AV_NOPTS_VALUE)
1043 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1044 if (pkt.dts != AV_NOPTS_VALUE)
1045 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
3ba41640
JR
1046 if (pkt.duration > 0)
1047 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
ee458cb1 1048 write_frame(os, &pkt, ost);
4a4ce2e7 1049 }
369cb092 1050
ee458cb1 1051 if (stop_encoding)
6f1c66d5 1052 break;
4a4ce2e7
AK
1053 }
1054 }
1055}
1056
7204ec1a
AK
1057/*
1058 * Check whether a packet from ist should be written into ost at this time
1059 */
1060static int check_output_constraints(InputStream *ist, OutputStream *ost)
1061{
2e215267
AK
1062 OutputFile *of = output_files[ost->file_index];
1063 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1064
1065 if (ost->source_index != ist_index)
1066 return 0;
1067
56ee3f9d 1068 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
7204ec1a
AK
1069 return 0;
1070
7204ec1a
AK
1071 return 1;
1072}
1073
1074static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1075{
2e215267 1076 OutputFile *of = output_files[ost->file_index];
488a0fa6 1077 InputFile *f = input_files [ist->file_index];
56ee3f9d
AK
1078 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1079 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1080 AVPacket opkt;
1081
1082 av_init_packet(&opkt);
1083
1084 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1085 !ost->copy_initial_nonkeyframes)
1086 return;
1087
1270e12e 1088 if (of->recording_time != INT64_MAX &&
56ee3f9d 1089 ist->last_dts >= of->recording_time + start_time) {
57d24225 1090 ost->finished = 1;
1270e12e
AK
1091 return;
1092 }
1093
488a0fa6
AK
1094 if (f->recording_time != INT64_MAX) {
1095 start_time = f->ctx->start_time;
1096 if (f->start_time != AV_NOPTS_VALUE)
1097 start_time += f->start_time;
1098 if (ist->last_dts >= f->recording_time + start_time) {
1099 ost->finished = 1;
1100 return;
1101 }
1102 }
1103
7204ec1a 1104 /* force the input stream PTS */
38313626 1105 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
7204ec1a 1106 ost->sync_opts++;
7204ec1a 1107
7204ec1a
AK
1108 if (pkt->pts != AV_NOPTS_VALUE)
1109 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1110 else
1111 opkt.pts = AV_NOPTS_VALUE;
1112
1113 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1114 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1115 else
1116 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1117 opkt.dts -= ost_tb_start_time;
1118
1119 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1120 opkt.flags = pkt->flags;
1121
7636c8c6 1122 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
38313626
AK
1123 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1124 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1125 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1126 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
7204ec1a 1127 ) {
c872d310
AK
1128 if (av_parser_change(ost->parser, ost->st->codec,
1129 &opkt.data, &opkt.size,
1130 pkt->data, pkt->size,
1131 pkt->flags & AV_PKT_FLAG_KEY)) {
9b2dc295
AK
1132 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1133 if (!opkt.buf)
636ced8e 1134 exit_program(1);
9b2dc295 1135 }
7204ec1a
AK
1136 } else {
1137 opkt.data = pkt->data;
1138 opkt.size = pkt->size;
1139 }
1140
f15f02c2 1141 write_frame(of->ctx, &opkt, ost);
7204ec1a
AK
1142}
1143
f5e66827 1144int guess_input_channel_layout(InputStream *ist)
369cb092 1145{
41776ba9 1146 AVCodecContext *dec = ist->dec_ctx;
369cb092
AK
1147
1148 if (!dec->channel_layout) {
1149 char layout_name[256];
1150
1151 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1152 if (!dec->channel_layout)
1153 return 0;
1154 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1155 dec->channels, dec->channel_layout);
1156 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1157 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1158 }
1159 return 1;
1160}
1161
0629f612 1162static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1163{
9b2dc295 1164 AVFrame *decoded_frame, *f;
41776ba9 1165 AVCodecContext *avctx = ist->dec_ctx;
9b2dc295 1166 int i, ret, err = 0, resample_changed;
ded28ba3 1167
5b9c3b45 1168 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
d1241ff3 1169 return AVERROR(ENOMEM);
9b2dc295
AK
1170 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1171 return AVERROR(ENOMEM);
9179f27c 1172 decoded_frame = ist->decoded_frame;
ded28ba3 1173
d1241ff3 1174 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1175 if (!*got_output || ret < 0) {
1176 if (!pkt->size) {
369cb092 1177 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1178 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1179 }
af8ad892 1180 return ret;
ded28ba3
AK
1181 }
1182
47543450
AK
1183 ist->samples_decoded += decoded_frame->nb_samples;
1184 ist->frames_decoded++;
1185
d1241ff3
JR
1186 /* if the decoder provides a pts, use it instead of the last packet pts.
1187 the decoder could be delaying output by a packet or more. */
1188 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1189 ist->next_dts = decoded_frame->pts;
1ae8198b 1190 else if (pkt->pts != AV_NOPTS_VALUE)
369cb092 1191 decoded_frame->pts = pkt->pts;
1ae8198b 1192 pkt->pts = AV_NOPTS_VALUE;
ded28ba3 1193
369cb092
AK
1194 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1195 ist->resample_channels != avctx->channels ||
1196 ist->resample_channel_layout != decoded_frame->channel_layout ||
1197 ist->resample_sample_rate != decoded_frame->sample_rate;
1198 if (resample_changed) {
1199 char layout1[64], layout2[64];
ded28ba3 1200
369cb092
AK
1201 if (!guess_input_channel_layout(ist)) {
1202 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1203 "layout for Input Stream #%d.%d\n", ist->file_index,
1204 ist->st->index);
636ced8e 1205 exit_program(1);
369cb092
AK
1206 }
1207 decoded_frame->channel_layout = avctx->channel_layout;
1208
1209 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1210 ist->resample_channel_layout);
1211 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1212 decoded_frame->channel_layout);
1213
1214 av_log(NULL, AV_LOG_INFO,
1215 "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",
1216 ist->file_index, ist->st->index,
1217 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1218 ist->resample_channels, layout1,
1219 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1220 avctx->channels, layout2);
1221
1222 ist->resample_sample_fmt = decoded_frame->format;
1223 ist->resample_sample_rate = decoded_frame->sample_rate;
1224 ist->resample_channel_layout = decoded_frame->channel_layout;
1225 ist->resample_channels = avctx->channels;
1226
1227 for (i = 0; i < nb_filtergraphs; i++)
1228 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1229 configure_filtergraph(filtergraphs[i]) < 0) {
1230 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1231 exit_program(1);
369cb092 1232 }
ded28ba3 1233 }
110d2af2 1234
715129cd
MS
1235 if (decoded_frame->pts != AV_NOPTS_VALUE)
1236 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1237 ist->st->time_base,
41776ba9 1238 (AVRational){1, avctx->sample_rate});
9b2dc295
AK
1239 for (i = 0; i < ist->nb_filters; i++) {
1240 if (i < ist->nb_filters - 1) {
1241 f = ist->filter_frame;
1242 err = av_frame_ref(f, decoded_frame);
1243 if (err < 0)
1244 break;
1245 } else
1246 f = decoded_frame;
369cb092 1247
9b2dc295
AK
1248 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1249 if (err < 0)
1250 break;
1251 }
1252
1253 av_frame_unref(ist->filter_frame);
1254 av_frame_unref(decoded_frame);
1255 return err < 0 ? err : ret;
ded28ba3
AK
1256}
1257
0629f612 1258static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1259{
9b2dc295 1260 AVFrame *decoded_frame, *f;
9b2dc295 1261 int i, ret = 0, err = 0, resample_changed;
45d4b66f 1262
9b2dc295
AK
1263 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1264 return AVERROR(ENOMEM);
1265 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
45d4b66f 1266 return AVERROR(ENOMEM);
9179f27c 1267 decoded_frame = ist->decoded_frame;
45d4b66f 1268
41776ba9 1269 ret = avcodec_decode_video2(ist->dec_ctx,
45d4b66f 1270 decoded_frame, got_output, pkt);
f154ef1a
AK
1271 if (!*got_output || ret < 0) {
1272 if (!pkt->size) {
89605e4a 1273 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1274 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1275 }
af8ad892 1276 return ret;
45d4b66f 1277 }
f154ef1a 1278
47543450
AK
1279 ist->frames_decoded++;
1280
07fd0a22 1281 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
41776ba9 1282 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
07fd0a22
AK
1283 if (err < 0)
1284 goto fail;
1285 }
1286 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1287
b34856a1
AK
1288 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1289 decoded_frame->pkt_dts);
45d4b66f 1290 pkt->size = 0;
45d4b66f 1291
695ec04e
AK
1292 if (ist->st->sample_aspect_ratio.num)
1293 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1294
e77c8662
AK
1295 resample_changed = ist->resample_width != decoded_frame->width ||
1296 ist->resample_height != decoded_frame->height ||
1297 ist->resample_pix_fmt != decoded_frame->format;
1298 if (resample_changed) {
1299 av_log(NULL, AV_LOG_INFO,
1300 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1301 ist->file_index, ist->st->index,
1302 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1303 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1304
2f34021d
JG
1305 ret = poll_filters();
1306 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1307 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1308
e77c8662
AK
1309 ist->resample_width = decoded_frame->width;
1310 ist->resample_height = decoded_frame->height;
1311 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1312
3b266da3
AK
1313 for (i = 0; i < nb_filtergraphs; i++)
1314 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1315 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1316 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1317 exit_program(1);
3b266da3
AK
1318 }
1319 }
ac646076 1320
3b266da3 1321 for (i = 0; i < ist->nb_filters; i++) {
9b2dc295
AK
1322 if (i < ist->nb_filters - 1) {
1323 f = ist->filter_frame;
1324 err = av_frame_ref(f, decoded_frame);
1325 if (err < 0)
1326 break;
04a14d4d 1327 } else
9b2dc295
AK
1328 f = decoded_frame;
1329
1330 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1331 if (err < 0)
1332 break;
45d4b66f
AK
1333 }
1334
07fd0a22 1335fail:
9b2dc295
AK
1336 av_frame_unref(ist->filter_frame);
1337 av_frame_unref(decoded_frame);
9b2dc295 1338 return err < 0 ? err : ret;
45d4b66f
AK
1339}
1340
9595234c
AK
1341static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1342{
1343 AVSubtitle subtitle;
41776ba9 1344 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
9595234c
AK
1345 &subtitle, got_output, pkt);
1346 if (ret < 0)
1347 return ret;
1348 if (!*got_output)
af8ad892 1349 return ret;
9595234c 1350
47543450
AK
1351 ist->frames_decoded++;
1352
9595234c 1353 for (i = 0; i < nb_output_streams; i++) {
2e215267 1354 OutputStream *ost = output_streams[i];
9595234c
AK
1355
1356 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1357 continue;
1358
2e215267 1359 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1360 }
1361
1362 avsubtitle_free(&subtitle);
af8ad892 1363 return ret;
9595234c
AK
1364}
1365
6291d7e4 1366/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1367static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1368{
ffa0674e 1369 int i;
6291d7e4 1370 int got_output;
6291d7e4 1371 AVPacket avpkt;
6291d7e4 1372
3101bb66 1373 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1374 ist->next_dts = ist->last_dts;
6291d7e4
AK
1375
1376 if (pkt == NULL) {
1377 /* EOF handling */
1378 av_init_packet(&avpkt);
1379 avpkt.data = NULL;
1380 avpkt.size = 0;
1381 goto handle_eof;
1382 } else {
1383 avpkt = *pkt;
1384 }
1385
7636c8c6 1386 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1387 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1388
7636c8c6 1389 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1390 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1391 int ret = 0;
6291d7e4 1392 handle_eof:
6291d7e4 1393
23576b3f 1394 ist->last_dts = ist->next_dts;
8b0268a8 1395
d1780e01
AK
1396 if (avpkt.size && avpkt.size != pkt->size &&
1397 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
e3245b26
AK
1398 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1399 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1400 ist->showed_multi_packet_warning = 1;
1401 }
6291d7e4 1402
41776ba9 1403 switch (ist->dec_ctx->codec_type) {
82963f8f 1404 case AVMEDIA_TYPE_AUDIO:
0629f612 1405 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1406 break;
1407 case AVMEDIA_TYPE_VIDEO:
0629f612 1408 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1409 if (avpkt.duration)
1410 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1411 else if (ist->st->avg_frame_rate.num)
82494835 1412 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1413 AV_TIME_BASE_Q);
41776ba9 1414 else if (ist->dec_ctx->time_base.num != 0) {
b34856a1 1415 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
41776ba9
AK
1416 ist->dec_ctx->ticks_per_frame;
1417 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->time_base, AV_TIME_BASE_Q);
b34856a1 1418 }
82963f8f
AK
1419 break;
1420 case AVMEDIA_TYPE_SUBTITLE:
1421 ret = transcode_subtitles(ist, &avpkt, &got_output);
1422 break;
78162b4e
AK
1423 default:
1424 return -1;
1425 }
6291d7e4 1426
d3c1d37a
AK
1427 if (ret < 0)
1428 return ret;
aa38cff2
JG
1429 // touch data and size only if not EOF
1430 if (pkt) {
1431 avpkt.data += ret;
1432 avpkt.size -= ret;
1433 }
82963f8f 1434 if (!got_output) {
af8ad892 1435 continue;
82963f8f 1436 }
6291d7e4 1437 }
6291d7e4 1438
7204ec1a 1439 /* handle stream copy */
2a651b71 1440 if (!ist->decoding_needed) {
23576b3f 1441 ist->last_dts = ist->next_dts;
41776ba9 1442 switch (ist->dec_ctx->codec_type) {
2a651b71 1443 case AVMEDIA_TYPE_AUDIO:
41776ba9
AK
1444 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1445 ist->dec_ctx->sample_rate;
2a651b71
AK
1446 break;
1447 case AVMEDIA_TYPE_VIDEO:
41776ba9
AK
1448 if (ist->dec_ctx->time_base.num != 0) {
1449 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
3101bb66 1450 ist->next_dts += ((int64_t)AV_TIME_BASE *
41776ba9
AK
1451 ist->dec_ctx->time_base.num * ticks) /
1452 ist->dec_ctx->time_base.den;
2a651b71
AK
1453 }
1454 break;
1455 }
1456 }
ea9367e9 1457 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1458 OutputStream *ost = output_streams[i];
7204ec1a
AK
1459
1460 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1461 continue;
1462
1463 do_streamcopy(ist, ost, pkt);
1464 }
1465
6291d7e4
AK
1466 return 0;
1467}
1468
ea9367e9 1469static void print_sdp(void)
6291d7e4 1470{
a23abaf3 1471 char sdp[16384];
af70aa45 1472 int i;
ea9367e9 1473 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1474
1475 if (!avc)
636ced8e 1476 exit_program(1);
ea9367e9 1477 for (i = 0; i < nb_output_files; i++)
2e215267 1478 avc[i] = output_files[i]->ctx;
6291d7e4 1479
ea9367e9 1480 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1481 printf("SDP:\n%s\n", sdp);
1482 fflush(stdout);
af70aa45 1483 av_freep(&avc);
6291d7e4
AK
1484}
1485
07fd0a22
AK
1486static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1487{
1488 int i;
1489 for (i = 0; hwaccels[i].name; i++)
1490 if (hwaccels[i].pix_fmt == pix_fmt)
1491 return &hwaccels[i];
1492 return NULL;
1493}
1494
1495static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1496{
1497 InputStream *ist = s->opaque;
1498 const enum AVPixelFormat *p;
1499 int ret;
1500
1501 for (p = pix_fmts; *p != -1; p++) {
1502 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1503 const HWAccel *hwaccel;
1504
1505 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1506 break;
1507
1508 hwaccel = get_hwaccel(*p);
1509 if (!hwaccel ||
1510 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1511 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1512 continue;
1513
1514 ret = hwaccel->init(s);
1515 if (ret < 0) {
1516 if (ist->hwaccel_id == hwaccel->id) {
1517 av_log(NULL, AV_LOG_FATAL,
1518 "%s hwaccel requested for input stream #%d:%d, "
1519 "but cannot be initialized.\n", hwaccel->name,
1520 ist->file_index, ist->st->index);
1521 exit_program(1);
1522 }
1523 continue;
1524 }
1525 ist->active_hwaccel_id = hwaccel->id;
1526 ist->hwaccel_pix_fmt = *p;
1527 break;
1528 }
1529
1530 return *p;
1531}
1532
1533static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1534{
1535 InputStream *ist = s->opaque;
1536
1537 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1538 return ist->hwaccel_get_buffer(s, frame, flags);
1539
1540 return avcodec_default_get_buffer2(s, frame, flags);
1541}
1542
ea9367e9 1543static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1544{
c854102d 1545 int i, ret;
2e215267 1546 InputStream *ist = input_streams[ist_index];
630902a1
AK
1547 if (ist->decoding_needed) {
1548 AVCodec *codec = ist->dec;
630902a1 1549 if (!codec) {
9a414d89 1550 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
41776ba9 1551 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
630902a1
AK
1552 return AVERROR(EINVAL);
1553 }
1554
1555 /* update requested sample format for the decoder based on the
1556 corresponding encoder sample format */
1557 for (i = 0; i < nb_output_streams; i++) {
2e215267 1558 OutputStream *ost = output_streams[i];
630902a1 1559 if (ost->source_index == ist_index) {
38313626 1560 update_sample_fmt(ist->dec_ctx, codec, ost->enc_ctx);
630902a1
AK
1561 break;
1562 }
1563 }
1564
41776ba9
AK
1565 ist->dec_ctx->opaque = ist;
1566 ist->dec_ctx->get_format = get_format;
1567 ist->dec_ctx->get_buffer2 = get_buffer;
1568 ist->dec_ctx->thread_safe_callbacks = 1;
07fd0a22 1569
41776ba9 1570 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
64dca32c 1571
f3a6ad22
AK
1572 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1573 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
41776ba9 1574 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
42cc6cef 1575 char errbuf[128];
c854102d
NC
1576 if (ret == AVERROR_EXPERIMENTAL)
1577 abort_codec_experimental(codec, 0);
42cc6cef
LB
1578
1579 av_strerror(ret, errbuf, sizeof(errbuf));
1580
1581 snprintf(error, error_len,
1582 "Error while opening decoder for input stream "
1583 "#%d:%d : %s",
1584 ist->file_index, ist->st->index, errbuf);
c854102d 1585 return ret;
630902a1 1586 }
f3a6ad22 1587 assert_avoptions(ist->decoder_opts);
630902a1
AK
1588 }
1589
41776ba9 1590 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
3101bb66 1591 ist->next_dts = AV_NOPTS_VALUE;
630902a1 1592 init_pts_correction(&ist->pts_ctx);
630902a1
AK
1593
1594 return 0;
1595}
1596
3b266da3
AK
1597static InputStream *get_input_stream(OutputStream *ost)
1598{
1599 if (ost->source_index >= 0)
1600 return input_streams[ost->source_index];
1601
1602 if (ost->filter) {
1603 FilterGraph *fg = ost->filter->graph;
1604 int i;
1605
1606 for (i = 0; i < fg->nb_inputs; i++)
38313626 1607 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
3b266da3
AK
1608 return fg->inputs[i]->ist;
1609 }
1610
1611 return NULL;
1612}
1613
19ad5673
AK
1614static void parse_forced_key_frames(char *kf, OutputStream *ost,
1615 AVCodecContext *avctx)
1616{
1617 char *p;
1618 int n = 1, i;
1619 int64_t t;
1620
1621 for (p = kf; *p; p++)
1622 if (*p == ',')
1623 n++;
1624 ost->forced_kf_count = n;
1625 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1626 if (!ost->forced_kf_pts) {
1627 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
636ced8e 1628 exit_program(1);
19ad5673 1629 }
4c679750
RD
1630
1631 p = kf;
19ad5673 1632 for (i = 0; i < n; i++) {
4c679750
RD
1633 char *next = strchr(p, ',');
1634
1635 if (next)
1636 *next++ = 0;
1637
19ad5673
AK
1638 t = parse_time_or_die("force_key_frames", p, 1);
1639 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1640
1641 p = next;
19ad5673
AK
1642 }
1643}
1644
6656370b
AK
1645static void set_encoder_id(OutputFile *of, OutputStream *ost)
1646{
1647 AVDictionaryEntry *e;
1648
1649 uint8_t *encoder_string;
1650 int encoder_string_len;
1651 int format_flags = 0;
1652
1653 e = av_dict_get(of->opts, "fflags", NULL, 0);
1654 if (e) {
1655 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1656 if (!o)
1657 return;
1658 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1659 }
1660
1661 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1662 encoder_string = av_mallocz(encoder_string_len);
1663 if (!encoder_string)
1664 exit_program(1);
1665
1666 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1667 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1668 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1669 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1670 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1671}
1672
ea9367e9 1673static int transcode_init(void)
6291d7e4 1674{
2c474ddb 1675 int ret = 0, i, j, k;
1bb77e51 1676 AVFormatContext *oc;
4288e031 1677 OutputStream *ost;
6291d7e4
AK
1678 InputStream *ist;
1679 char error[1024];
1680 int want_sdp = 1;
b0c9e8e0 1681
f4805328
AK
1682 /* init framerate emulation */
1683 for (i = 0; i < nb_input_files; i++) {
2e215267 1684 InputFile *ifile = input_files[i];
f4805328
AK
1685 if (ifile->rate_emu)
1686 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1687 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1688 }
6291d7e4
AK
1689
1690 /* output stream init */
03f30c83 1691 for (i = 0; i < nb_output_files; i++) {
2e215267 1692 oc = output_files[i]->ctx;
1bb77e51
AK
1693 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1694 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1695 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1696 return AVERROR(EINVAL);
6291d7e4 1697 }
6291d7e4
AK
1698 }
1699
3b266da3
AK
1700 /* init complex filtergraphs */
1701 for (i = 0; i < nb_filtergraphs; i++)
1702 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1703 return ret;
1704
6291d7e4 1705 /* for each output stream, we compute the right encoding parameters */
4288e031 1706 for (i = 0; i < nb_output_streams; i++) {
65ed9e75 1707 AVCodecContext *enc_ctx;
650a5206 1708 AVCodecContext *dec_ctx = NULL;
2e215267
AK
1709 ost = output_streams[i];
1710 oc = output_files[ost->file_index]->ctx;
3b266da3 1711 ist = get_input_stream(ost);
6291d7e4 1712
4dbc6cee
AK
1713 if (ost->attachment_filename)
1714 continue;
1715
38313626 1716 enc_ctx = ost->enc_ctx;
6291d7e4 1717
3b266da3 1718 if (ist) {
41776ba9 1719 dec_ctx = ist->dec_ctx;
3b266da3
AK
1720
1721 ost->st->disposition = ist->st->disposition;
65ed9e75
AK
1722 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1723 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
3b266da3 1724 }
6291d7e4 1725
3d813e4c 1726 if (ost->stream_copy) {
538bf767 1727 AVRational sar;
8c4022ac
AK
1728 uint64_t extra_size;
1729
1730 av_assert0(ist && !ost->filter);
1731
650a5206 1732 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1733
e6d2b737 1734 if (extra_size > INT_MAX) {
eaf2d37a 1735 return AVERROR(EINVAL);
e6d2b737 1736 }
6291d7e4
AK
1737
1738 /* if stream_copy is selected, no need to decode or encode */
65ed9e75
AK
1739 enc_ctx->codec_id = dec_ctx->codec_id;
1740 enc_ctx->codec_type = dec_ctx->codec_type;
6291d7e4 1741
65ed9e75 1742 if (!enc_ctx->codec_tag) {
03f30c83 1743 if (!oc->oformat->codec_tag ||
65ed9e75 1744 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
650a5206 1745 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
65ed9e75 1746 enc_ctx->codec_tag = dec_ctx->codec_tag;
6291d7e4
AK
1747 }
1748
65ed9e75
AK
1749 enc_ctx->bit_rate = dec_ctx->bit_rate;
1750 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1751 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1752 enc_ctx->field_order = dec_ctx->field_order;
1753 enc_ctx->extradata = av_mallocz(extra_size);
1754 if (!enc_ctx->extradata) {
eaf2d37a 1755 return AVERROR(ENOMEM);
e6d2b737 1756 }
65ed9e75
AK
1757 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1758 enc_ctx->extradata_size = dec_ctx->extradata_size;
7bb3e625 1759 if (!copy_tb) {
65ed9e75
AK
1760 enc_ctx->time_base = dec_ctx->time_base;
1761 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1762 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1763 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
03f30c83 1764 } else
65ed9e75 1765 enc_ctx->time_base = ist->st->time_base;
03f30c83 1766
65ed9e75 1767 ost->parser = av_parser_init(enc_ctx->codec_id);
c872d310 1768
65ed9e75 1769 switch (enc_ctx->codec_type) {
6291d7e4 1770 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1771 if (audio_volume != 256) {
e3245b26 1772 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
636ced8e 1773 exit_program(1);
6291d7e4 1774 }
65ed9e75
AK
1775 enc_ctx->channel_layout = dec_ctx->channel_layout;
1776 enc_ctx->sample_rate = dec_ctx->sample_rate;
1777 enc_ctx->channels = dec_ctx->channels;
1778 enc_ctx->frame_size = dec_ctx->frame_size;
1779 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1780 enc_ctx->block_align = dec_ctx->block_align;
6291d7e4
AK
1781 break;
1782 case AVMEDIA_TYPE_VIDEO:
65ed9e75
AK
1783 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1784 enc_ctx->width = dec_ctx->width;
1785 enc_ctx->height = dec_ctx->height;
1786 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
538bf767 1787 if (ost->frame_aspect_ratio)
65ed9e75 1788 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
538bf767
AK
1789 else if (ist->st->sample_aspect_ratio.num)
1790 sar = ist->st->sample_aspect_ratio;
1791 else
650a5206 1792 sar = dec_ctx->sample_aspect_ratio;
65ed9e75 1793 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
6291d7e4
AK
1794 break;
1795 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75
AK
1796 enc_ctx->width = dec_ctx->width;
1797 enc_ctx->height = dec_ctx->height;
6291d7e4
AK
1798 break;
1799 case AVMEDIA_TYPE_DATA:
3ccd1580 1800 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1801 break;
1802 default:
1803 abort();
1804 }
1805 } else {
2994913d
AK
1806 if (!ost->enc) {
1807 /* should only happen when a default codec is not present. */
1808 snprintf(error, sizeof(error), "Automatic encoder selection "
1809 "failed for output stream #%d:%d. Default encoder for "
1810 "format %s is probably disabled. Please choose an "
1811 "encoder manually.\n", ost->file_index, ost->index,
1812 oc->oformat->name);
1813 ret = AVERROR(EINVAL);
1814 goto dump_format;
1815 }
03f30c83 1816
3b266da3
AK
1817 if (ist)
1818 ist->decoding_needed = 1;
11fdb7e1 1819 ost->encoding_needed = 1;
03f30c83 1820
6656370b
AK
1821 set_encoder_id(output_files[ost->file_index], ost);
1822
74b961db
AK
1823 /*
1824 * We want CFR output if and only if one of those is true:
1825 * 1) user specified output framerate with -r
1826 * 2) user specified -vsync cfr
1827 * 3) output format is CFR and the user didn't force vsync to
1828 * something else than CFR
1829 *
1830 * in such a case, set ost->frame_rate
1831 */
65ed9e75 1832 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
74b961db
AK
1833 !ost->frame_rate.num && ist &&
1834 (video_sync_method == VSYNC_CFR ||
1835 (video_sync_method == VSYNC_AUTO &&
1836 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2ce8bca5
AK
1837 if (ist->framerate.num)
1838 ost->frame_rate = ist->framerate;
1839 else if (ist->st->avg_frame_rate.num)
1840 ost->frame_rate = ist->st->avg_frame_rate;
1841 else {
1842 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1843 "for the output stream #%d:%d, but no information "
1844 "about the input framerate is available. Falling "
1845 "back to a default value of 25fps. Use the -r option "
1846 "if you want a different framerate.\n",
1847 ost->file_index, ost->index);
1848 ost->frame_rate = (AVRational){ 25, 1 };
1849 }
44b0b85f 1850
74b961db
AK
1851 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1852 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1853 ost->frame_rate = ost->enc->supported_framerates[idx];
1854 }
1855 }
1856
369cb092 1857 if (!ost->filter &&
65ed9e75
AK
1858 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1859 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1860 FilterGraph *fg;
1861 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1862 if (configure_filtergraph(fg)) {
3b266da3 1863 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
636ced8e 1864 exit_program(1);
3b266da3 1865 }
369cb092 1866 }
3b266da3 1867
65ed9e75 1868 switch (enc_ctx->codec_type) {
369cb092 1869 case AVMEDIA_TYPE_AUDIO:
65ed9e75
AK
1870 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1871 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1872 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1873 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1874 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
369cb092
AK
1875 break;
1876 case AVMEDIA_TYPE_VIDEO:
65ed9e75 1877 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1878
65ed9e75
AK
1879 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1880 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1881 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3b266da3 1882 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
65ed9e75 1883 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
3b266da3 1884 ost->filter->filter->inputs[0]->sample_aspect_ratio;
65ed9e75 1885 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1886
93afb6c9
AK
1887 ost->st->avg_frame_rate = ost->frame_rate;
1888
650a5206 1889 if (dec_ctx &&
65ed9e75
AK
1890 (enc_ctx->width != dec_ctx->width ||
1891 enc_ctx->height != dec_ctx->height ||
1892 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1893 enc_ctx->bits_per_raw_sample = 0;
b7327887
AK
1894 }
1895
19ad5673
AK
1896 if (ost->forced_keyframes)
1897 parse_forced_key_frames(ost->forced_keyframes, ost,
38313626 1898 ost->enc_ctx);
6291d7e4
AK
1899 break;
1900 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75 1901 enc_ctx->time_base = (AVRational){1, 1000};
6291d7e4
AK
1902 break;
1903 default:
1904 abort();
1905 break;
1906 }
1907 /* two pass mode */
65ed9e75 1908 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1909 char logfilename[1024];
1910 FILE *f;
1911
1912 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1913 ost->logfile_prefix ? ost->logfile_prefix :
1914 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1915 i);
6e8be949 1916 if (!strcmp(ost->enc->name, "libx264")) {
9580818c 1917 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
6e8be949 1918 } else {
65ed9e75 1919 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
64334ddb
AK
1920 f = fopen(logfilename, "wb");
1921 if (!f) {
1922 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1923 logfilename, strerror(errno));
636ced8e 1924 exit_program(1);
64334ddb
AK
1925 }
1926 ost->logfile = f;
1927 } else {
1928 char *logbuffer;
1929 size_t logbuffer_size;
1930 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1931 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1932 logfilename);
636ced8e 1933 exit_program(1);
64334ddb 1934 }
65ed9e75 1935 enc_ctx->stats_in = logbuffer;
6291d7e4 1936 }
6e8be949 1937 }
6291d7e4
AK
1938 }
1939 }
6291d7e4
AK
1940 }
1941
1942 /* open each encoder */
4288e031 1943 for (i = 0; i < nb_output_streams; i++) {
2e215267 1944 ost = output_streams[i];
6291d7e4 1945 if (ost->encoding_needed) {
03f30c83 1946 AVCodec *codec = ost->enc;
3b266da3 1947 AVCodecContext *dec = NULL;
3b266da3
AK
1948
1949 if ((ist = get_input_stream(ost)))
41776ba9 1950 dec = ist->dec_ctx;
3b266da3 1951 if (dec && dec->subtitle_header) {
38313626
AK
1952 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1953 if (!ost->enc_ctx->subtitle_header) {
6291d7e4
AK
1954 ret = AVERROR(ENOMEM);
1955 goto dump_format;
1956 }
38313626
AK
1957 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1958 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
6291d7e4 1959 }
9580818c
AK
1960 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1961 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
38313626
AK
1962 av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
1963
1964 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
c854102d
NC
1965 if (ret == AVERROR_EXPERIMENTAL)
1966 abort_codec_experimental(codec, 1);
9a414d89 1967 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 1968 ost->file_index, ost->index);
6291d7e4
AK
1969 goto dump_format;
1970 }
9580818c 1971 assert_avoptions(ost->encoder_opts);
38313626 1972 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
6291d7e4
AK
1973 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1974 "It takes bits/s as argument, not kbits/s\n");
df0229a7 1975 } else {
38313626
AK
1976 av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1977 }
1978
1979 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1980 if (ret < 0) {
1981 av_log(NULL, AV_LOG_FATAL,
1982 "Error initializing the output stream codec context.\n");
1983 exit_program(1);
6291d7e4
AK
1984 }
1985 }
1986
630902a1
AK
1987 /* init input streams */
1988 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1989 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1990 goto dump_format;
6291d7e4 1991
2c474ddb
AK
1992 /* discard unused programs */
1993 for (i = 0; i < nb_input_files; i++) {
2e215267 1994 InputFile *ifile = input_files[i];
2c474ddb
AK
1995 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1996 AVProgram *p = ifile->ctx->programs[j];
1997 int discard = AVDISCARD_ALL;
1998
1999 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 2000 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
2001 discard = AVDISCARD_DEFAULT;
2002 break;
2003 }
2004 p->discard = discard;
2005 }
2006 }
2007
6291d7e4 2008 /* open files and write file headers */
af70aa45 2009 for (i = 0; i < nb_output_files; i++) {
2e215267 2010 oc = output_files[i]->ctx;
1bb77e51 2011 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
2012 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2013 char errbuf[128];
1e340af8
LB
2014 av_strerror(ret, errbuf, sizeof(errbuf));
2015 snprintf(error, sizeof(error),
2016 "Could not write header for output file #%d "
2017 "(incorrect codec parameters ?): %s",
2018 i, errbuf);
6291d7e4
AK
2019 ret = AVERROR(EINVAL);
2020 goto dump_format;
2021 }
2e215267 2022 assert_avoptions(output_files[i]->opts);
1bb77e51 2023 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2024 want_sdp = 0;
2025 }
2026 }
2027
2028 dump_format:
2029 /* dump the file output parameters - cannot be done before in case
2030 of stream copy */
03f30c83 2031 for (i = 0; i < nb_output_files; i++) {
2e215267 2032 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2033 }
2034
2035 /* dump the stream mapping */
e3245b26 2036 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2037 for (i = 0; i < nb_input_streams; i++) {
2038 ist = input_streams[i];
2039
2040 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
2041 if (ist->filters[j]->graph->graph_desc) {
2042 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2043 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2044 ist->filters[j]->name);
3b266da3
AK
2045 if (nb_filtergraphs > 1)
2046 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2047 av_log(NULL, AV_LOG_INFO, "\n");
2048 }
2049 }
2050 }
2051
e3245b26 2052 for (i = 0; i < nb_output_streams; i++) {
2e215267 2053 ost = output_streams[i];
4dbc6cee
AK
2054
2055 if (ost->attachment_filename) {
2056 /* an attached file */
2057 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2058 ost->attachment_filename, ost->file_index, ost->index);
2059 continue;
2060 }
3b266da3
AK
2061
2062 if (ost->filter && ost->filter->graph->graph_desc) {
2063 /* output from a complex graph */
cf6c38c6 2064 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2065 if (nb_filtergraphs > 1)
2066 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2067
2068 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2069 ost->index, ost->enc ? ost->enc->name : "?");
2070 continue;
2071 }
2072
9a414d89 2073 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2074 input_streams[ost->source_index]->file_index,
2075 input_streams[ost->source_index]->st->index,
e3245b26
AK
2076 ost->file_index,
2077 ost->index);
2e215267 2078 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2079 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2080 ost->sync_ist->file_index,
2081 ost->sync_ist->st->index);
3d813e4c 2082 if (ost->stream_copy)
e3245b26 2083 av_log(NULL, AV_LOG_INFO, " (copy)");
39ec5e1c
LB
2084 else {
2085 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2086 const AVCodec *out_codec = ost->enc;
2087 const char *decoder_name = "?";
2088 const char *in_codec_name = "?";
2089 const char *encoder_name = "?";
2090 const char *out_codec_name = "?";
2091
2092 if (in_codec) {
2093 decoder_name = in_codec->name;
2094 in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
2095 if (!strcmp(decoder_name, in_codec_name))
2096 decoder_name = "native";
2097 }
2098
2099 if (out_codec) {
2100 encoder_name = out_codec->name;
2101 out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
2102 if (!strcmp(encoder_name, in_codec_name))
2103 encoder_name = "native";
2104 }
2105
2106 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2107 in_codec_name, decoder_name,
2108 out_codec_name, encoder_name);
2109 }
e3245b26 2110 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2111 }
2112
2113 if (ret) {
e3245b26 2114 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2115 return ret;
6291d7e4
AK
2116 }
2117
2118 if (want_sdp) {
ea9367e9 2119 print_sdp();
6291d7e4
AK
2120 }
2121
eaf2d37a
AC
2122 return 0;
2123}
2124
c1ef30a6 2125/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
2126static int need_output(void)
2127{
2128 int i;
2129
2130 for (i = 0; i < nb_output_streams; i++) {
2131 OutputStream *ost = output_streams[i];
2132 OutputFile *of = output_files[ost->file_index];
2133 AVFormatContext *os = output_files[ost->file_index]->ctx;
2134
57d24225 2135 if (ost->finished ||
2f51ec2b
AK
2136 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2137 continue;
e58b75f7 2138 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2139 int j;
2140 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 2141 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
2142 continue;
2143 }
2144
2145 return 1;
2146 }
2147
2148 return 0;
2149}
2150
83916029 2151static InputFile *select_input_file(void)
a508e7a1 2152{
83916029 2153 InputFile *ifile = NULL;
a508e7a1 2154 int64_t ipts_min = INT64_MAX;
83916029 2155 int i;
a508e7a1
AK
2156
2157 for (i = 0; i < nb_input_streams; i++) {
2158 InputStream *ist = input_streams[i];
2159 int64_t ipts = ist->last_dts;
2160
0b26ef42 2161 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
2162 continue;
2163 if (!input_files[ist->file_index]->eof_reached) {
2164 if (ipts < ipts_min) {
2165 ipts_min = ipts;
83916029 2166 ifile = input_files[ist->file_index];
a508e7a1
AK
2167 }
2168 }
2169 }
2170
83916029 2171 return ifile;
a508e7a1
AK
2172}
2173
47b812e9 2174#if HAVE_PTHREADS
5db5169e
AK
2175static void *input_thread(void *arg)
2176{
2177 InputFile *f = arg;
2178 int ret = 0;
2179
2180 while (!transcoding_finished && ret >= 0) {
2181 AVPacket pkt;
2182 ret = av_read_frame(f->ctx, &pkt);
2183
2184 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2185 av_usleep(10000);
5db5169e
AK
2186 ret = 0;
2187 continue;
2188 } else if (ret < 0)
2189 break;
2190
2191 pthread_mutex_lock(&f->fifo_lock);
2192 while (!av_fifo_space(f->fifo))
2193 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2194
2195 av_dup_packet(&pkt);
2196 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2197
2198 pthread_mutex_unlock(&f->fifo_lock);
2199 }
2200
2201 f->finished = 1;
2202 return NULL;
2203}
2204
2205static void free_input_threads(void)
2206{
2207 int i;
2208
2209 if (nb_input_files == 1)
2210 return;
2211
2212 transcoding_finished = 1;
2213
2214 for (i = 0; i < nb_input_files; i++) {
2215 InputFile *f = input_files[i];
2216 AVPacket pkt;
2217
9034b0ed 2218 if (!f->fifo || f->joined)
5db5169e
AK
2219 continue;
2220
2221 pthread_mutex_lock(&f->fifo_lock);
2222 while (av_fifo_size(f->fifo)) {
2223 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2224 av_free_packet(&pkt);
2225 }
2226 pthread_cond_signal(&f->fifo_cond);
2227 pthread_mutex_unlock(&f->fifo_lock);
2228
2229 pthread_join(f->thread, NULL);
2230 f->joined = 1;
2231
2232 while (av_fifo_size(f->fifo)) {
2233 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2234 av_free_packet(&pkt);
2235 }
2236 av_fifo_free(f->fifo);
2237 }
2238}
2239
2240static int init_input_threads(void)
2241{
2242 int i, ret;
2243
2244 if (nb_input_files == 1)
2245 return 0;
2246
2247 for (i = 0; i < nb_input_files; i++) {
2248 InputFile *f = input_files[i];
2249
2250 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2251 return AVERROR(ENOMEM);
2252
2253 pthread_mutex_init(&f->fifo_lock, NULL);
2254 pthread_cond_init (&f->fifo_cond, NULL);
2255
2256 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2257 return AVERROR(ret);
2258 }
2259 return 0;
2260}
2261
2262static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2263{
2264 int ret = 0;
2265
2266 pthread_mutex_lock(&f->fifo_lock);
2267
2268 if (av_fifo_size(f->fifo)) {
2269 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2270 pthread_cond_signal(&f->fifo_cond);
2271 } else {
2272 if (f->finished)
2273 ret = AVERROR_EOF;
2274 else
2275 ret = AVERROR(EAGAIN);
2276 }
2277
2278 pthread_mutex_unlock(&f->fifo_lock);
2279
2280 return ret;
2281}
2282#endif
2283
2284static int get_input_packet(InputFile *f, AVPacket *pkt)
2285{
b4a5a292
AK
2286 if (f->rate_emu) {
2287 int i;
2288 for (i = 0; i < f->nb_streams; i++) {
2289 InputStream *ist = input_streams[f->ist_index + i];
2290 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2291 int64_t now = av_gettime() - ist->start;
2292 if (pts > now)
2293 return AVERROR(EAGAIN);
2294 }
2295 }
2296
47b812e9 2297#if HAVE_PTHREADS
5db5169e
AK
2298 if (nb_input_files > 1)
2299 return get_input_packet_mt(f, pkt);
2300#endif
2301 return av_read_frame(f->ctx, pkt);
2302}
2303
0b26ef42
AK
2304static int got_eagain(void)
2305{
2306 int i;
2307 for (i = 0; i < nb_input_files; i++)
2308 if (input_files[i]->eagain)
2309 return 1;
2310 return 0;
2311}
2312
2313static void reset_eagain(void)
2314{
2315 int i;
2316 for (i = 0; i < nb_input_files; i++)
2317 input_files[i]->eagain = 0;
2318}
2319
c1ef30a6 2320/*
0c00fd80
AK
2321 * Read one packet from an input file and send it for
2322 * - decoding -> lavfi (audio/video)
2323 * - decoding -> encoding -> muxing (subtitles)
2324 * - muxing (streamcopy)
2325 *
c1ef30a6 2326 * Return
0c00fd80
AK
2327 * - 0 -- one packet was read and processed
2328 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2329 * this function should be called again
2330 * - AVERROR_EOF -- this function should not be called again
2331 */
2332static int process_input(void)
2333{
2334 InputFile *ifile;
2335 AVFormatContext *is;
2336 InputStream *ist;
2337 AVPacket pkt;
2338 int ret, i, j;
2339
2340 /* select the stream that we must read now */
2341 ifile = select_input_file();
2342 /* if none, if is finished */
2343 if (!ifile) {
2344 if (got_eagain()) {
2345 reset_eagain();
2346 av_usleep(10000);
2347 return AVERROR(EAGAIN);
2348 }
2349 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2350 return AVERROR_EOF;
2351 }
2352
2353 is = ifile->ctx;
2354 ret = get_input_packet(ifile, &pkt);
2355
2356 if (ret == AVERROR(EAGAIN)) {
2357 ifile->eagain = 1;
2358 return ret;
2359 }
2360 if (ret < 0) {
2361 if (ret != AVERROR_EOF) {
2362 print_error(is->filename, ret);
2363 if (exit_on_error)
636ced8e 2364 exit_program(1);
0c00fd80
AK
2365 }
2366 ifile->eof_reached = 1;
2367
2368 for (i = 0; i < ifile->nb_streams; i++) {
2369 ist = input_streams[ifile->ist_index + i];
2370 if (ist->decoding_needed)
2371 output_packet(ist, NULL);
2372
2373 /* mark all outputs that don't go through lavfi as finished */
2374 for (j = 0; j < nb_output_streams; j++) {
2375 OutputStream *ost = output_streams[j];
2376
2377 if (ost->source_index == ifile->ist_index + i &&
2378 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2379 ost->finished= 1;
0c00fd80
AK
2380 }
2381 }
2382
3c0df905 2383 return AVERROR(EAGAIN);
0c00fd80
AK
2384 }
2385
2386 reset_eagain();
2387
2388 if (do_pkt_dump) {
2389 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2390 is->streams[pkt.stream_index]);
2391 }
2392 /* the following test is needed in case new streams appear
2393 dynamically in stream : we ignore them */
2394 if (pkt.stream_index >= ifile->nb_streams)
2395 goto discard_packet;
2396
2397 ist = input_streams[ifile->ist_index + pkt.stream_index];
47543450
AK
2398
2399 ist->data_size += pkt.size;
59444c76 2400 ist->nb_packets++;
47543450 2401
0c00fd80
AK
2402 if (ist->discard)
2403 goto discard_packet;
2404
59444c76
AK
2405 /* add the stream-global side data to the first packet */
2406 if (ist->nb_packets == 1)
2407 for (i = 0; i < ist->st->nb_side_data; i++) {
2408 AVPacketSideData *src_sd = &ist->st->side_data[i];
2409 uint8_t *dst_data;
2410
2411 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2412 continue;
2413
2414 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2415 if (!dst_data)
2416 exit_program(1);
2417
2418 memcpy(dst_data, src_sd->data, src_sd->size);
2419 }
2420
0c00fd80
AK
2421 if (pkt.dts != AV_NOPTS_VALUE)
2422 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2423 if (pkt.pts != AV_NOPTS_VALUE)
2424 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2425
2426 if (pkt.pts != AV_NOPTS_VALUE)
2427 pkt.pts *= ist->ts_scale;
2428 if (pkt.dts != AV_NOPTS_VALUE)
2429 pkt.dts *= ist->ts_scale;
2430
2431 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2432 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2433 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2434 int64_t delta = pkt_dts - ist->next_dts;
2435
2436 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2437 ifile->ts_offset -= delta;
2438 av_log(NULL, AV_LOG_DEBUG,
2439 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2440 delta, ifile->ts_offset);
2441 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2442 if (pkt.pts != AV_NOPTS_VALUE)
2443 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2444 }
2445 }
2446
2447 ret = output_packet(ist, &pkt);
2448 if (ret < 0) {
2449 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2450 ist->file_index, ist->st->index);
2451 if (exit_on_error)
636ced8e 2452 exit_program(1);
0c00fd80
AK
2453 }
2454
2455discard_packet:
2456 av_free_packet(&pkt);
2457
2458 return 0;
2459}
2460
eaf2d37a
AC
2461/*
2462 * The following code is the main loop of the file converter
2463 */
ea9367e9 2464static int transcode(void)
eaf2d37a 2465{
0c00fd80
AK
2466 int ret, i, need_input = 1;
2467 AVFormatContext *os;
eaf2d37a
AC
2468 OutputStream *ost;
2469 InputStream *ist;
eaf2d37a
AC
2470 int64_t timer_start;
2471
ea9367e9 2472 ret = transcode_init();
eaf2d37a
AC
2473 if (ret < 0)
2474 goto fail;
2475
e3245b26 2476 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2477 term_init();
2478
2479 timer_start = av_gettime();
2480
47b812e9 2481#if HAVE_PTHREADS
5db5169e
AK
2482 if ((ret = init_input_threads()) < 0)
2483 goto fail;
2484#endif
2485
c0fbf971 2486 while (!received_sigterm) {
3b266da3 2487 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2488 if (!need_output()) {
2489 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2490 break;
2f51ec2b 2491 }
3b266da3 2492
0c00fd80
AK
2493 /* read and process one input packet if needed */
2494 if (need_input) {
2495 ret = process_input();
2496 if (ret == AVERROR_EOF)
2497 need_input = 0;
6291d7e4
AK
2498 }
2499
0c00fd80 2500 ret = poll_filters();
6291d7e4 2501 if (ret < 0) {
0c00fd80 2502 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2503 continue;
6291d7e4 2504
0c00fd80
AK
2505 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2506 break;
6291d7e4
AK
2507 }
2508
6291d7e4 2509 /* dump report by using the output first video and audio streams */
ea9367e9 2510 print_report(0, timer_start);
6291d7e4 2511 }
47b812e9 2512#if HAVE_PTHREADS
5db5169e
AK
2513 free_input_threads();
2514#endif
6291d7e4
AK
2515
2516 /* at the end of stream, we must flush the decoder buffers */
2517 for (i = 0; i < nb_input_streams; i++) {
2e215267 2518 ist = input_streams[i];
9e8aae44 2519 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2520 output_packet(ist, NULL);
6291d7e4
AK
2521 }
2522 }
560f7774 2523 poll_filters();
ea9367e9 2524 flush_encoders();
6291d7e4
AK
2525
2526 term_exit();
2527
2528 /* write the trailer if needed and close file */
7636c8c6 2529 for (i = 0; i < nb_output_files; i++) {
2e215267 2530 os = output_files[i]->ctx;
6291d7e4
AK
2531 av_write_trailer(os);
2532 }
2533
2534 /* dump report by using the first video and audio streams */
ea9367e9 2535 print_report(1, timer_start);
6291d7e4
AK
2536
2537 /* close each encoder */
4288e031 2538 for (i = 0; i < nb_output_streams; i++) {
2e215267 2539 ost = output_streams[i];
6291d7e4 2540 if (ost->encoding_needed) {
38313626 2541 av_freep(&ost->enc_ctx->stats_in);
6291d7e4 2542 }
6291d7e4
AK
2543 }
2544
2545 /* close each decoder */
2546 for (i = 0; i < nb_input_streams; i++) {
2e215267 2547 ist = input_streams[i];
6291d7e4 2548 if (ist->decoding_needed) {
41776ba9 2549 avcodec_close(ist->dec_ctx);
07fd0a22 2550 if (ist->hwaccel_uninit)
41776ba9 2551 ist->hwaccel_uninit(ist->dec_ctx);
6291d7e4
AK
2552 }
2553 }
2554
2555 /* finished ! */
2556 ret = 0;
2557
2558 fail:
47b812e9 2559#if HAVE_PTHREADS
5db5169e
AK
2560 free_input_threads();
2561#endif
6291d7e4 2562
4288e031
AK
2563 if (output_streams) {
2564 for (i = 0; i < nb_output_streams; i++) {
2e215267 2565 ost = output_streams[i];
6291d7e4 2566 if (ost) {
6291d7e4
AK
2567 if (ost->logfile) {
2568 fclose(ost->logfile);
2569 ost->logfile = NULL;
2570 }
6291d7e4 2571 av_free(ost->forced_kf_pts);
9580818c 2572 av_dict_free(&ost->encoder_opts);
5c7db097 2573 av_dict_free(&ost->resample_opts);
6291d7e4
AK
2574 }
2575 }
6291d7e4
AK
2576 }
2577 return ret;
2578}
2579
f5e66827 2580static int64_t getutime(void)
a2c0b830 2581{
f5e66827
AK
2582#if HAVE_GETRUSAGE
2583 struct rusage rusage;
a2c0b830 2584
f5e66827
AK
2585 getrusage(RUSAGE_SELF, &rusage);
2586 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2587#elif HAVE_GETPROCESSTIMES
2588 HANDLE proc;
2589 FILETIME c, e, k, u;
2590 proc = GetCurrentProcess();
2591 GetProcessTimes(proc, &c, &e, &k, &u);
2592 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2593#else
2594 return av_gettime();
2595#endif
a2c0b830
AK
2596}
2597
f5e66827 2598static int64_t getmaxrss(void)
6291d7e4 2599{
f5e66827
AK
2600#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2601 struct rusage rusage;
2602 getrusage(RUSAGE_SELF, &rusage);
2603 return (int64_t)rusage.ru_maxrss * 1024;
2604#elif HAVE_GETPROCESSMEMORYINFO
2605 HANDLE proc;
2606 PROCESS_MEMORY_COUNTERS memcounters;
2607 proc = GetCurrentProcess();
2608 memcounters.cb = sizeof(memcounters);
2609 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2610 return memcounters.PeakPagefileUsage;
2611#else
6291d7e4 2612 return 0;
f5e66827 2613#endif
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2614}
2615
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2616int main(int argc, char **argv)
2617{
77bd1bc7 2618 int ret;
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2619 int64_t ti;
2620
636ced8e 2621 register_exit(avconv_cleanup);
5e3f9979 2622
6291d7e4 2623 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2624 parse_loglevel(argc, argv, options);
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2625
2626 avcodec_register_all();
2627#if CONFIG_AVDEVICE
2628 avdevice_register_all();
2629#endif
6291d7e4 2630 avfilter_register_all();
6291d7e4 2631 av_register_all();
776f2bb9 2632 avformat_network_init();
6291d7e4 2633
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2634 show_banner();
2635
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2636 /* parse options and open all input/output files */
2637 ret = avconv_parse_options(argc, argv);
2638 if (ret < 0)
636ced8e 2639 exit_program(1);
6291d7e4 2640
7636c8c6 2641 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2642 show_usage();
e3245b26 2643 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
636ced8e 2644 exit_program(1);
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2645 }
2646
2647 /* file converter / grab */
2648 if (nb_output_files <= 0) {
2649 fprintf(stderr, "At least one output file must be specified\n");
636ced8e 2650 exit_program(1);
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2651 }
2652
6291d7e4 2653 ti = getutime();
ea9367e9 2654 if (transcode() < 0)
636ced8e 2655 exit_program(1);
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2656 ti = getutime() - ti;
2657 if (do_benchmark) {
2658 int maxrss = getmaxrss() / 1024;
2659 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2660 }
2661
636ced8e 2662 exit_program(0);
dad09ff9 2663 return 0;
6291d7e4 2664}