wavenc: use codec descriptors to get the codec name
[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
2e215267 194 av_freep(&output_streams[i]);
1135a071 195 }
7636c8c6 196 for (i = 0; i < nb_input_files; i++) {
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197 avformat_close_input(&input_files[i]->ctx);
198 av_freep(&input_files[i]);
6291d7e4 199 }
9179f27c 200 for (i = 0; i < nb_input_streams; i++) {
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201 InputStream *ist = input_streams[i];
202
203 av_frame_free(&ist->decoded_frame);
204 av_frame_free(&ist->filter_frame);
f3a6ad22 205 av_dict_free(&ist->decoder_opts);
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206 av_freep(&ist->filters);
207 av_freep(&ist->hwaccel_device);
208
2e215267 209 av_freep(&input_streams[i]);
9179f27c 210 }
6291d7e4 211
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212 if (vstats_file)
213 fclose(vstats_file);
214 av_free(vstats_filename);
215
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216 av_freep(&input_streams);
217 av_freep(&input_files);
4288e031 218 av_freep(&output_streams);
af70aa45 219 av_freep(&output_files);
6291d7e4 220
6291d7e4 221 uninit_opts();
6291d7e4 222
776f2bb9 223 avformat_network_deinit();
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224
225 if (received_sigterm) {
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226 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
227 (int) received_sigterm);
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228 exit (255);
229 }
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230}
231
f5e66827 232void assert_avoptions(AVDictionary *m)
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233{
234 AVDictionaryEntry *t;
235 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 236 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
636ced8e 237 exit_program(1);
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238 }
239}
240
c854102d 241static void abort_codec_experimental(AVCodec *c, int encoder)
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242{
243 const char *codec_string = encoder ? "encoder" : "decoder";
244 AVCodec *codec;
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245 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
246 "results.\nAdd '-strict experimental' if you want to use it.\n",
247 codec_string, c->name);
248 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
249 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
250 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
251 codec_string, codec->name);
636ced8e 252 exit_program(1);
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253}
254
c1ef30a6 255/*
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256 * Update the requested input sample format based on the output sample format.
257 * This is currently only used to request float output from decoders which
258 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
259 * Ideally this will be removed in the future when decoders do not do format
260 * conversion and only output in their native format.
261 */
262static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
263 AVCodecContext *enc)
264{
265 /* if sample formats match or a decoder sample format has already been
266 requested, just return */
267 if (enc->sample_fmt == dec->sample_fmt ||
268 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
269 return;
270
271 /* if decoder supports more than one output format */
272 if (dec_codec && dec_codec->sample_fmts &&
273 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
274 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
275 const enum AVSampleFormat *p;
fd41cb43
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276 int min_dec = INT_MAX, min_inc = INT_MAX;
277 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
278 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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279
280 /* find a matching sample format in the encoder */
281 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
282 if (*p == enc->sample_fmt) {
283 dec->request_sample_fmt = *p;
284 return;
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285 } else {
286 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
287 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
288 int fmt_diff = 32 * abs(dfmt - efmt);
289 if (av_sample_fmt_is_planar(*p) !=
290 av_sample_fmt_is_planar(enc->sample_fmt))
291 fmt_diff++;
292 if (dfmt == efmt) {
293 min_inc = fmt_diff;
294 inc_fmt = *p;
295 } else if (dfmt > efmt) {
296 if (fmt_diff < min_inc) {
297 min_inc = fmt_diff;
298 inc_fmt = *p;
299 }
300 } else {
301 if (fmt_diff < min_dec) {
302 min_dec = fmt_diff;
303 dec_fmt = *p;
304 }
305 }
306 }
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307 }
308
309 /* if none match, provide the one that matches quality closest */
fd41cb43 310 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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311 }
312}
313
f15f02c2 314static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 315{
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316 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
317 AVCodecContext *avctx = ost->st->codec;
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318 int ret;
319
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320 /*
321 * Audio encoders may split the packets -- #frames in != #packets out.
322 * But there is no reordering, so we can limit the number of output packets
323 * by simply dropping them here.
324 * Counting encoded video frames needs to be done separately because of
325 * reordering, see do_video_out()
326 */
327 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
c9594fe0
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328 if (ost->frame_number >= ost->max_frames) {
329 av_free_packet(pkt);
99932847 330 return;
c9594fe0 331 }
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332 ost->frame_number++;
333 }
334
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335 while (bsfc) {
336 AVPacket new_pkt = *pkt;
337 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
338 &new_pkt.data, &new_pkt.size,
339 pkt->data, pkt->size,
340 pkt->flags & AV_PKT_FLAG_KEY);
341 if (a > 0) {
6291d7e4 342 av_free_packet(pkt);
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343 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
344 av_buffer_default_free, NULL, 0);
345 if (!new_pkt.buf)
636ced8e 346 exit_program(1);
7636c8c6 347 } else if (a < 0) {
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348 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
349 bsfc->filter->name, pkt->stream_index,
350 avctx->codec ? avctx->codec->name : "copy");
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351 print_error("", a);
352 if (exit_on_error)
636ced8e 353 exit_program(1);
6291d7e4 354 }
7636c8c6 355 *pkt = new_pkt;
6291d7e4 356
7636c8c6 357 bsfc = bsfc->next;
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358 }
359
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360 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
361 ost->last_mux_dts != AV_NOPTS_VALUE &&
362 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
363 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
364 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
365 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
366 if (exit_on_error) {
367 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
636ced8e 368 exit_program(1);
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369 }
370 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
371 "in incorrect timestamps in the output file.\n",
372 ost->last_mux_dts + 1);
373 pkt->dts = ost->last_mux_dts + 1;
374 if (pkt->pts != AV_NOPTS_VALUE)
375 pkt->pts = FFMAX(pkt->pts, pkt->dts);
376 }
377 ost->last_mux_dts = pkt->dts;
378
baeb59d8 379 ost->data_size += pkt->size;
47543450 380 ost->packets_written++;
baeb59d8 381
61a09968 382 pkt->stream_index = ost->index;
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383 ret = av_interleaved_write_frame(s, pkt);
384 if (ret < 0) {
6291d7e4 385 print_error("av_interleaved_write_frame()", ret);
636ced8e 386 exit_program(1);
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387 }
388}
389
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390static int check_recording_time(OutputStream *ost)
391{
2e215267 392 OutputFile *of = output_files[ost->file_index];
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393
394 if (of->recording_time != INT64_MAX &&
395 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
396 AV_TIME_BASE_Q) >= 0) {
57d24225 397 ost->finished = 1;
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398 return 0;
399 }
400 return 1;
401}
402
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403static void do_audio_out(AVFormatContext *s, OutputStream *ost,
404 AVFrame *frame)
ee458cb1
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405{
406 AVCodecContext *enc = ost->st->codec;
ee458cb1 407 AVPacket pkt;
369cb092 408 int got_packet = 0;
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409
410 av_init_packet(&pkt);
411 pkt.data = NULL;
412 pkt.size = 0;
413
369cb092 414 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 415 frame->pts = ost->sync_opts;
369cb092 416 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 417
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418 ost->samples_encoded += frame->nb_samples;
419 ost->frames_encoded++;
420
ee458cb1
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421 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
422 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
636ced8e 423 exit_program(1);
ee458cb1
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424 }
425
426 if (got_packet) {
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427 if (pkt.pts != AV_NOPTS_VALUE)
428 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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429 if (pkt.dts != AV_NOPTS_VALUE)
430 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
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431 if (pkt.duration > 0)
432 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
433
434 write_frame(s, &pkt, ost);
ee458cb1 435 }
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436}
437
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438static void do_subtitle_out(AVFormatContext *s,
439 OutputStream *ost,
440 InputStream *ist,
441 AVSubtitle *sub,
442 int64_t pts)
443{
444 static uint8_t *subtitle_out = NULL;
445 int subtitle_out_max_size = 1024 * 1024;
446 int subtitle_out_size, nb, i;
447 AVCodecContext *enc;
448 AVPacket pkt;
449
450 if (pts == AV_NOPTS_VALUE) {
e3245b26 451 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 452 if (exit_on_error)
636ced8e 453 exit_program(1);
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454 return;
455 }
456
457 enc = ost->st->codec;
458
459 if (!subtitle_out) {
460 subtitle_out = av_malloc(subtitle_out_max_size);
461 }
462
463 /* Note: DVB subtitle need one packet to draw them and one other
464 packet to clear them */
465 /* XXX: signal it in the codec context ? */
36ef5369 466 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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467 nb = 2;
468 else
469 nb = 1;
470
7636c8c6 471 for (i = 0; i < nb; i++) {
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472 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
473 if (!check_recording_time(ost))
474 return;
475
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476 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
477 // start_display_time is required to be 0
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478 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
479 sub->end_display_time -= sub->start_display_time;
6291d7e4 480 sub->start_display_time = 0;
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481
482 ost->frames_encoded++;
483
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484 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
485 subtitle_out_max_size, sub);
486 if (subtitle_out_size < 0) {
e3245b26 487 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
636ced8e 488 exit_program(1);
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489 }
490
491 av_init_packet(&pkt);
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492 pkt.data = subtitle_out;
493 pkt.size = subtitle_out_size;
7636c8c6 494 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 495 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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496 /* XXX: the pts correction is handled here. Maybe handling
497 it in the codec would be better */
498 if (i == 0)
499 pkt.pts += 90 * sub->start_display_time;
500 else
501 pkt.pts += 90 * sub->end_display_time;
502 }
f15f02c2 503 write_frame(s, &pkt, ost);
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504 }
505}
506
87ef060c
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507static void do_video_out(AVFormatContext *s,
508 OutputStream *ost,
87ef060c 509 AVFrame *in_picture,
fb722a90 510 int *frame_size)
87ef060c 511{
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512 int ret, format_video_sync;
513 AVPacket pkt;
514 AVCodecContext *enc = ost->st->codec;
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515
516 *frame_size = 0;
517
553735f5 518 format_video_sync = video_sync_method;
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519 if (format_video_sync == VSYNC_AUTO)
520 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
521 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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522 if (format_video_sync != VSYNC_PASSTHROUGH &&
523 ost->frame_number &&
524 in_picture->pts != AV_NOPTS_VALUE &&
525 in_picture->pts < ost->sync_opts) {
d43040e2 526 nb_frames_drop++;
aa499568
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527 av_log(NULL, AV_LOG_WARNING,
528 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
529 ost->frame_number, ost->st->index, in_picture->pts);
87ef060c 530 return;
d43040e2 531 }
87ef060c 532
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533 if (in_picture->pts == AV_NOPTS_VALUE)
534 in_picture->pts = ost->sync_opts;
535 ost->sync_opts = in_picture->pts;
536
537
1270e12e 538 if (!ost->frame_number)
74b961db 539 ost->first_pts = in_picture->pts;
1270e12e 540
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541 av_init_packet(&pkt);
542 pkt.data = NULL;
543 pkt.size = 0;
6291d7e4 544
a83c0da5 545 if (ost->frame_number >= ost->max_frames)
39885a4b 546 return;
1270e12e 547
39885a4b 548 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 549 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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550 /* raw pictures are written as AVPicture structure to
551 avoid any copies. We support temporarily the older
552 method. */
553 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
554 enc->coded_frame->top_field_first = in_picture->top_field_first;
555 pkt.data = (uint8_t *)in_picture;
556 pkt.size = sizeof(AVPicture);
557 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
558 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 559
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560 write_frame(s, &pkt, ost);
561 } else {
562 int got_packet;
6291d7e4 563
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564 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
565 ost->top_field_first >= 0)
566 in_picture->top_field_first = !!ost->top_field_first;
567
568 in_picture->quality = ost->st->codec->global_quality;
39885a4b 569 if (!enc->me_threshold)
9b2dc295 570 in_picture->pict_type = 0;
39885a4b 571 if (ost->forced_kf_index < ost->forced_kf_count &&
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572 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
573 in_picture->pict_type = AV_PICTURE_TYPE_I;
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574 ost->forced_kf_index++;
575 }
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576
577 ost->frames_encoded++;
578
9b2dc295 579 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
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580 if (ret < 0) {
581 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
636ced8e 582 exit_program(1);
39885a4b 583 }
6291d7e4 584
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585 if (got_packet) {
586 if (pkt.pts != AV_NOPTS_VALUE)
587 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
588 if (pkt.dts != AV_NOPTS_VALUE)
589 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 590
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591 write_frame(s, &pkt, ost);
592 *frame_size = pkt.size;
324fbadf 593
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594 /* if two pass, output log */
595 if (ost->logfile && enc->stats_out) {
596 fprintf(ost->logfile, "%s", enc->stats_out);
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597 }
598 }
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599 }
600 ost->sync_opts++;
601 /*
602 * For video, number of frames in == number of packets out.
603 * But there may be reordering, so we can't throw away frames on encoder
604 * flush, we need to limit them here, before they go into encoder.
605 */
606 ost->frame_number++;
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607}
608
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609static double psnr(double d)
610{
611 return -10.0 * log(d) / log(10.0);
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612}
613
70478746 614static void do_video_stats(OutputStream *ost, int frame_size)
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615{
616 AVCodecContext *enc;
617 int frame_number;
618 double ti1, bitrate, avg_bitrate;
619
620 /* this is executed just the first time do_video_stats is called */
621 if (!vstats_file) {
622 vstats_file = fopen(vstats_filename, "w");
623 if (!vstats_file) {
624 perror("fopen");
636ced8e 625 exit_program(1);
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626 }
627 }
628
629 enc = ost->st->codec;
630 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
631 frame_number = ost->frame_number;
7636c8c6 632 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 633 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 634 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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635
636 fprintf(vstats_file,"f_size= %6d ", frame_size);
637 /* compute pts value */
638 ti1 = ost->sync_opts * av_q2d(enc->time_base);
639 if (ti1 < 0.01)
640 ti1 = 0.01;
641
7636c8c6 642 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
baeb59d8 643 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
6291d7e4 644 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
baeb59d8 645 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
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646 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
647 }
648}
649
c1ef30a6 650/*
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651 * Read one frame for lavfi output for ost and encode it.
652 */
653static int poll_filter(OutputStream *ost)
560f7774 654{
a4f50110 655 OutputFile *of = output_files[ost->file_index];
560f7774 656 AVFrame *filtered_frame = NULL;
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657 int frame_size, ret;
658
5b9c3b45 659 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
a4f50110 660 return AVERROR(ENOMEM);
674fa491 661 }
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662 filtered_frame = ost->filtered_frame;
663
664 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
665 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
9b2dc295 666 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
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667 ost->st->codec->frame_size);
668 else
9b2dc295 669 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
369cb092 670
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671 if (ret < 0)
672 return ret;
560f7774 673
9b2dc295 674 if (filtered_frame->pts != AV_NOPTS_VALUE) {
56ee3f9d 675 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
9b2dc295 676 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
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677 ost->filter->filter->inputs[0]->time_base,
678 ost->st->codec->time_base) -
56ee3f9d 679 av_rescale_q(start_time,
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680 AV_TIME_BASE_Q,
681 ost->st->codec->time_base);
560f7774 682 }
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683
684 switch (ost->filter->filter->inputs[0]->type) {
685 case AVMEDIA_TYPE_VIDEO:
686 if (!ost->frame_aspect_ratio)
9b2dc295 687 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
a4f50110 688
fb722a90 689 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
a4f50110 690 if (vstats_filename && frame_size)
70478746 691 do_video_stats(ost, frame_size);
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692 break;
693 case AVMEDIA_TYPE_AUDIO:
694 do_audio_out(of->ctx, ost, filtered_frame);
695 break;
696 default:
697 // TODO support subtitle filters
698 av_assert0(0);
699 }
700
9b2dc295 701 av_frame_unref(filtered_frame);
a4f50110 702
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703 return 0;
704}
705
c1ef30a6 706/*
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707 * Read as many frames from possible from lavfi and encode them.
708 *
709 * Always read from the active stream with the lowest timestamp. If no frames
710 * are available for it then return EAGAIN and wait for more input. This way we
711 * can use lavfi sources that generate unlimited amount of frames without memory
712 * usage exploding.
713 */
714static int poll_filters(void)
715{
3c0df905 716 int i, j, ret = 0;
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717
718 while (ret >= 0 && !received_sigterm) {
719 OutputStream *ost = NULL;
720 int64_t min_pts = INT64_MAX;
721
722 /* choose output stream with the lowest timestamp */
723 for (i = 0; i < nb_output_streams; i++) {
724 int64_t pts = output_streams[i]->sync_opts;
725
57d24225 726 if (!output_streams[i]->filter || output_streams[i]->finished)
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727 continue;
728
729 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
730 AV_TIME_BASE_Q);
731 if (pts < min_pts) {
732 min_pts = pts;
733 ost = output_streams[i];
734 }
735 }
736
737 if (!ost)
738 break;
739
740 ret = poll_filter(ost);
741
742 if (ret == AVERROR_EOF) {
3c0df905
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743 OutputFile *of = output_files[ost->file_index];
744
57d24225 745 ost->finished = 1;
a4f50110 746
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747 if (of->shortest) {
748 for (j = 0; j < of->ctx->nb_streams; j++)
749 output_streams[of->ost_index + j]->finished = 1;
750 }
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751
752 ret = 0;
753 } else if (ret == AVERROR(EAGAIN))
754 return 0;
755 }
756
757 return ret;
758}
759
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760static void print_final_stats(int64_t total_size)
761{
762 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
763 uint64_t data_size = 0;
764 float percent = -1.0;
47543450 765 int i, j;
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766
767 for (i = 0; i < nb_output_streams; i++) {
768 OutputStream *ost = output_streams[i];
769 switch (ost->st->codec->codec_type) {
770 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
771 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
772 default: other_size += ost->data_size; break;
773 }
774 extra_size += ost->st->codec->extradata_size;
775 data_size += ost->data_size;
776 }
777
778 if (data_size && total_size >= data_size)
779 percent = 100.0 * (total_size - data_size) / data_size;
780
781 av_log(NULL, AV_LOG_INFO, "\n");
782 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
783 video_size / 1024.0,
784 audio_size / 1024.0,
785 other_size / 1024.0,
786 extra_size / 1024.0);
787 if (percent >= 0.0)
788 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
789 else
790 av_log(NULL, AV_LOG_INFO, "unknown");
791 av_log(NULL, AV_LOG_INFO, "\n");
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792
793 /* print verbose per-stream stats */
794 for (i = 0; i < nb_input_files; i++) {
795 InputFile *f = input_files[i];
796 uint64_t total_packets = 0, total_size = 0;
797
798 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
799 i, f->ctx->filename);
800
801 for (j = 0; j < f->nb_streams; j++) {
802 InputStream *ist = input_streams[f->ist_index + j];
803 enum AVMediaType type = ist->st->codec->codec_type;
804
805 total_size += ist->data_size;
806 total_packets += ist->nb_packets;
807
808 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
809 i, j, media_type_string(type));
810 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
811 ist->nb_packets, ist->data_size);
812
813 if (ist->decoding_needed) {
814 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
815 ist->frames_decoded);
816 if (type == AVMEDIA_TYPE_AUDIO)
817 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
818 av_log(NULL, AV_LOG_VERBOSE, "; ");
819 }
820
821 av_log(NULL, AV_LOG_VERBOSE, "\n");
822 }
823
824 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
825 total_packets, total_size);
826 }
827
828 for (i = 0; i < nb_output_files; i++) {
829 OutputFile *of = output_files[i];
830 uint64_t total_packets = 0, total_size = 0;
831
832 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
833 i, of->ctx->filename);
834
835 for (j = 0; j < of->ctx->nb_streams; j++) {
836 OutputStream *ost = output_streams[of->ost_index + j];
837 enum AVMediaType type = ost->st->codec->codec_type;
838
839 total_size += ost->data_size;
840 total_packets += ost->packets_written;
841
842 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
843 i, j, media_type_string(type));
844 if (ost->encoding_needed) {
845 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
846 ost->frames_encoded);
847 if (type == AVMEDIA_TYPE_AUDIO)
848 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
849 av_log(NULL, AV_LOG_VERBOSE, "; ");
850 }
851
852 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
853 ost->packets_written, ost->data_size);
854
855 av_log(NULL, AV_LOG_VERBOSE, "\n");
856 }
857
858 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
859 total_packets, total_size);
860 }
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861}
862
ea9367e9 863static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
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864{
865 char buf[1024];
866 OutputStream *ost;
867 AVFormatContext *oc;
868 int64_t total_size;
869 AVCodecContext *enc;
870 int frame_number, vid, i;
871 double bitrate, ti1, pts;
872 static int64_t last_time = -1;
873 static int qp_histogram[52];
874
3460dd8a
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875 if (!print_stats && !is_last_report)
876 return;
877
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878 if (!is_last_report) {
879 int64_t cur_time;
880 /* display the report every 0.5 seconds */
881 cur_time = av_gettime();
882 if (last_time == -1) {
883 last_time = cur_time;
884 return;
885 }
886 if ((cur_time - last_time) < 500000)
887 return;
888 last_time = cur_time;
889 }
890
891
2e215267 892 oc = output_files[0]->ctx;
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893
894 total_size = avio_size(oc->pb);
1b891d17 895 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
7636c8c6 896 total_size = avio_tell(oc->pb);
1b891d17
JG
897 if (total_size < 0) {
898 char errbuf[128];
899 av_strerror(total_size, errbuf, sizeof(errbuf));
900 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
901 "avio_tell() failed: %s\n", errbuf);
902 total_size = 0;
903 }
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904
905 buf[0] = '\0';
906 ti1 = 1e10;
907 vid = 0;
ea9367e9 908 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 909 float q = -1;
2e215267 910 ost = output_streams[i];
6291d7e4 911 enc = ost->st->codec;
3d813e4c 912 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 913 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
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914 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
916 }
917 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 918 float t = (av_gettime() - timer_start) / 1000000.0;
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919
920 frame_number = ost->frame_number;
921 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
922 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
923 if (is_last_report)
6291d7e4 924 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 925 if (qp_hist) {
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926 int j;
927 int qp = lrintf(q);
7636c8c6 928 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 929 qp_histogram[qp]++;
7636c8c6 930 for (j = 0; j < 32; j++)
d752509b 931 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 932 }
7636c8c6 933 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 934 int j;
7636c8c6
AD
935 double error, error_sum = 0;
936 double scale, scale_sum = 0;
937 char type[3] = { 'Y','U','V' };
6291d7e4 938 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
939 for (j = 0; j < 3; j++) {
940 if (is_last_report) {
941 error = enc->error[j];
942 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
943 } else {
944 error = enc->coded_frame->error[j];
945 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 946 }
7636c8c6
AD
947 if (j)
948 scale /= 4;
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949 error_sum += error;
950 scale_sum += scale;
7636c8c6 951 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 952 }
7636c8c6 953 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
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954 }
955 vid = 1;
956 }
957 /* compute min output value */
958 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
959 if ((pts < ti1) && (pts > 0))
960 ti1 = pts;
961 }
962 if (ti1 < 0.01)
963 ti1 = 0.01;
964
e3245b26 965 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 966
e3245b26 967 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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968 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
969 (double)total_size / 1024, ti1, bitrate);
970
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971 if (nb_frames_drop)
972 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
973 nb_frames_drop);
6291d7e4 974
f5646a32 975 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 976
e3245b26 977 fflush(stderr);
6291d7e4 978
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979 if (is_last_report)
980 print_final_stats(total_size);
baeb59d8 981
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982}
983
ea9367e9 984static void flush_encoders(void)
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985{
986 int i, ret;
987
ea9367e9 988 for (i = 0; i < nb_output_streams; i++) {
2e215267 989 OutputStream *ost = output_streams[i];
6f1c66d5 990 AVCodecContext *enc = ost->st->codec;
2e215267 991 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 992 int stop_encoding = 0;
6f1c66d5 993
b62b5cb6 994 if (!ost->encoding_needed)
6f1c66d5
AK
995 continue;
996
7636c8c6 997 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 998 continue;
36ef5369 999 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
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1000 continue;
1001
7636c8c6 1002 for (;;) {
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1003 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1004 const char *desc;
6f1c66d5
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1005
1006 switch (ost->st->codec->codec_type) {
1007 case AVMEDIA_TYPE_AUDIO:
369cb092
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1008 encode = avcodec_encode_audio2;
1009 desc = "Audio";
6f1c66d5
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1010 break;
1011 case AVMEDIA_TYPE_VIDEO:
369cb092
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1012 encode = avcodec_encode_video2;
1013 desc = "Video";
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1014 break;
1015 default:
1016 stop_encoding = 1;
1017 }
1018
1019 if (encode) {
1020 AVPacket pkt;
1021 int got_packet;
1022 av_init_packet(&pkt);
1023 pkt.data = NULL;
1024 pkt.size = 0;
1025
1026 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1027 if (ret < 0) {
369cb092 1028 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
636ced8e 1029 exit_program(1);
6f1c66d5 1030 }
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AK
1031 if (ost->logfile && enc->stats_out) {
1032 fprintf(ost->logfile, "%s", enc->stats_out);
1033 }
8e37038a 1034 if (!got_packet) {
ee458cb1
JR
1035 stop_encoding = 1;
1036 break;
1037 }
8e37038a
AK
1038 if (pkt.pts != AV_NOPTS_VALUE)
1039 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1040 if (pkt.dts != AV_NOPTS_VALUE)
1041 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
3ba41640
JR
1042 if (pkt.duration > 0)
1043 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
ee458cb1 1044 write_frame(os, &pkt, ost);
4a4ce2e7 1045 }
369cb092 1046
ee458cb1 1047 if (stop_encoding)
6f1c66d5 1048 break;
4a4ce2e7
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1049 }
1050 }
1051}
1052
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1053/*
1054 * Check whether a packet from ist should be written into ost at this time
1055 */
1056static int check_output_constraints(InputStream *ist, OutputStream *ost)
1057{
2e215267
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1058 OutputFile *of = output_files[ost->file_index];
1059 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1060
1061 if (ost->source_index != ist_index)
1062 return 0;
1063
56ee3f9d 1064 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
7204ec1a
AK
1065 return 0;
1066
7204ec1a
AK
1067 return 1;
1068}
1069
1070static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1071{
2e215267 1072 OutputFile *of = output_files[ost->file_index];
488a0fa6 1073 InputFile *f = input_files [ist->file_index];
56ee3f9d
AK
1074 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1075 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1076 AVPacket opkt;
1077
1078 av_init_packet(&opkt);
1079
1080 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1081 !ost->copy_initial_nonkeyframes)
1082 return;
1083
1270e12e 1084 if (of->recording_time != INT64_MAX &&
56ee3f9d 1085 ist->last_dts >= of->recording_time + start_time) {
57d24225 1086 ost->finished = 1;
1270e12e
AK
1087 return;
1088 }
1089
488a0fa6
AK
1090 if (f->recording_time != INT64_MAX) {
1091 start_time = f->ctx->start_time;
1092 if (f->start_time != AV_NOPTS_VALUE)
1093 start_time += f->start_time;
1094 if (ist->last_dts >= f->recording_time + start_time) {
1095 ost->finished = 1;
1096 return;
1097 }
1098 }
1099
7204ec1a 1100 /* force the input stream PTS */
baeb59d8 1101 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
7204ec1a 1102 ost->sync_opts++;
7204ec1a 1103
7204ec1a
AK
1104 if (pkt->pts != AV_NOPTS_VALUE)
1105 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1106 else
1107 opkt.pts = AV_NOPTS_VALUE;
1108
1109 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1110 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1111 else
1112 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1113 opkt.dts -= ost_tb_start_time;
1114
1115 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1116 opkt.flags = pkt->flags;
1117
7636c8c6 1118 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
36ef5369
AK
1119 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1120 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1121 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1122 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
7204ec1a 1123 ) {
c872d310
AK
1124 if (av_parser_change(ost->parser, ost->st->codec,
1125 &opkt.data, &opkt.size,
1126 pkt->data, pkt->size,
1127 pkt->flags & AV_PKT_FLAG_KEY)) {
9b2dc295
AK
1128 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1129 if (!opkt.buf)
636ced8e 1130 exit_program(1);
9b2dc295 1131 }
7204ec1a
AK
1132 } else {
1133 opkt.data = pkt->data;
1134 opkt.size = pkt->size;
1135 }
1136
f15f02c2 1137 write_frame(of->ctx, &opkt, ost);
7204ec1a
AK
1138}
1139
f5e66827 1140int guess_input_channel_layout(InputStream *ist)
369cb092
AK
1141{
1142 AVCodecContext *dec = ist->st->codec;
1143
1144 if (!dec->channel_layout) {
1145 char layout_name[256];
1146
1147 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1148 if (!dec->channel_layout)
1149 return 0;
1150 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1151 dec->channels, dec->channel_layout);
1152 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1153 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1154 }
1155 return 1;
1156}
1157
0629f612 1158static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1159{
9b2dc295 1160 AVFrame *decoded_frame, *f;
d1241ff3 1161 AVCodecContext *avctx = ist->st->codec;
9b2dc295 1162 int i, ret, err = 0, resample_changed;
ded28ba3 1163
5b9c3b45 1164 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
d1241ff3 1165 return AVERROR(ENOMEM);
9b2dc295
AK
1166 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1167 return AVERROR(ENOMEM);
9179f27c 1168 decoded_frame = ist->decoded_frame;
ded28ba3 1169
d1241ff3 1170 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1171 if (!*got_output || ret < 0) {
1172 if (!pkt->size) {
369cb092 1173 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1174 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1175 }
af8ad892 1176 return ret;
ded28ba3
AK
1177 }
1178
47543450
AK
1179 ist->samples_decoded += decoded_frame->nb_samples;
1180 ist->frames_decoded++;
1181
d1241ff3
JR
1182 /* if the decoder provides a pts, use it instead of the last packet pts.
1183 the decoder could be delaying output by a packet or more. */
1184 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1185 ist->next_dts = decoded_frame->pts;
1ae8198b 1186 else if (pkt->pts != AV_NOPTS_VALUE)
369cb092 1187 decoded_frame->pts = pkt->pts;
1ae8198b 1188 pkt->pts = AV_NOPTS_VALUE;
ded28ba3 1189
369cb092
AK
1190 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1191 ist->resample_channels != avctx->channels ||
1192 ist->resample_channel_layout != decoded_frame->channel_layout ||
1193 ist->resample_sample_rate != decoded_frame->sample_rate;
1194 if (resample_changed) {
1195 char layout1[64], layout2[64];
ded28ba3 1196
369cb092
AK
1197 if (!guess_input_channel_layout(ist)) {
1198 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1199 "layout for Input Stream #%d.%d\n", ist->file_index,
1200 ist->st->index);
636ced8e 1201 exit_program(1);
369cb092
AK
1202 }
1203 decoded_frame->channel_layout = avctx->channel_layout;
1204
1205 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1206 ist->resample_channel_layout);
1207 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1208 decoded_frame->channel_layout);
1209
1210 av_log(NULL, AV_LOG_INFO,
1211 "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",
1212 ist->file_index, ist->st->index,
1213 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1214 ist->resample_channels, layout1,
1215 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1216 avctx->channels, layout2);
1217
1218 ist->resample_sample_fmt = decoded_frame->format;
1219 ist->resample_sample_rate = decoded_frame->sample_rate;
1220 ist->resample_channel_layout = decoded_frame->channel_layout;
1221 ist->resample_channels = avctx->channels;
1222
1223 for (i = 0; i < nb_filtergraphs; i++)
1224 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1225 configure_filtergraph(filtergraphs[i]) < 0) {
1226 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1227 exit_program(1);
369cb092 1228 }
ded28ba3 1229 }
110d2af2 1230
715129cd
MS
1231 if (decoded_frame->pts != AV_NOPTS_VALUE)
1232 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1233 ist->st->time_base,
1234 (AVRational){1, ist->st->codec->sample_rate});
9b2dc295
AK
1235 for (i = 0; i < ist->nb_filters; i++) {
1236 if (i < ist->nb_filters - 1) {
1237 f = ist->filter_frame;
1238 err = av_frame_ref(f, decoded_frame);
1239 if (err < 0)
1240 break;
1241 } else
1242 f = decoded_frame;
369cb092 1243
9b2dc295
AK
1244 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1245 if (err < 0)
1246 break;
1247 }
1248
1249 av_frame_unref(ist->filter_frame);
1250 av_frame_unref(decoded_frame);
1251 return err < 0 ? err : ret;
ded28ba3
AK
1252}
1253
0629f612 1254static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1255{
9b2dc295 1256 AVFrame *decoded_frame, *f;
9b2dc295 1257 int i, ret = 0, err = 0, resample_changed;
45d4b66f 1258
9b2dc295
AK
1259 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1260 return AVERROR(ENOMEM);
1261 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
45d4b66f 1262 return AVERROR(ENOMEM);
9179f27c 1263 decoded_frame = ist->decoded_frame;
45d4b66f
AK
1264
1265 ret = avcodec_decode_video2(ist->st->codec,
1266 decoded_frame, got_output, pkt);
f154ef1a
AK
1267 if (!*got_output || ret < 0) {
1268 if (!pkt->size) {
89605e4a 1269 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1270 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1271 }
af8ad892 1272 return ret;
45d4b66f 1273 }
f154ef1a 1274
47543450
AK
1275 ist->frames_decoded++;
1276
07fd0a22
AK
1277 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1278 err = ist->hwaccel_retrieve_data(ist->st->codec, decoded_frame);
1279 if (err < 0)
1280 goto fail;
1281 }
1282 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1283
b34856a1
AK
1284 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1285 decoded_frame->pkt_dts);
45d4b66f 1286 pkt->size = 0;
45d4b66f 1287
695ec04e
AK
1288 if (ist->st->sample_aspect_ratio.num)
1289 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1290
e77c8662
AK
1291 resample_changed = ist->resample_width != decoded_frame->width ||
1292 ist->resample_height != decoded_frame->height ||
1293 ist->resample_pix_fmt != decoded_frame->format;
1294 if (resample_changed) {
1295 av_log(NULL, AV_LOG_INFO,
1296 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1297 ist->file_index, ist->st->index,
1298 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1299 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1300
2f34021d
JG
1301 ret = poll_filters();
1302 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1303 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1304
e77c8662
AK
1305 ist->resample_width = decoded_frame->width;
1306 ist->resample_height = decoded_frame->height;
1307 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1308
3b266da3
AK
1309 for (i = 0; i < nb_filtergraphs; i++)
1310 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1311 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1312 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1313 exit_program(1);
3b266da3
AK
1314 }
1315 }
ac646076 1316
3b266da3 1317 for (i = 0; i < ist->nb_filters; i++) {
9b2dc295
AK
1318 if (i < ist->nb_filters - 1) {
1319 f = ist->filter_frame;
1320 err = av_frame_ref(f, decoded_frame);
1321 if (err < 0)
1322 break;
04a14d4d 1323 } else
9b2dc295
AK
1324 f = decoded_frame;
1325
1326 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1327 if (err < 0)
1328 break;
45d4b66f
AK
1329 }
1330
07fd0a22 1331fail:
9b2dc295
AK
1332 av_frame_unref(ist->filter_frame);
1333 av_frame_unref(decoded_frame);
9b2dc295 1334 return err < 0 ? err : ret;
45d4b66f
AK
1335}
1336
9595234c
AK
1337static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1338{
1339 AVSubtitle subtitle;
1340 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1341 &subtitle, got_output, pkt);
1342 if (ret < 0)
1343 return ret;
1344 if (!*got_output)
af8ad892 1345 return ret;
9595234c 1346
47543450
AK
1347 ist->frames_decoded++;
1348
9595234c 1349 for (i = 0; i < nb_output_streams; i++) {
2e215267 1350 OutputStream *ost = output_streams[i];
9595234c
AK
1351
1352 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1353 continue;
1354
2e215267 1355 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1356 }
1357
1358 avsubtitle_free(&subtitle);
af8ad892 1359 return ret;
9595234c
AK
1360}
1361
6291d7e4 1362/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1363static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1364{
ffa0674e 1365 int i;
6291d7e4 1366 int got_output;
6291d7e4 1367 AVPacket avpkt;
6291d7e4 1368
3101bb66 1369 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1370 ist->next_dts = ist->last_dts;
6291d7e4
AK
1371
1372 if (pkt == NULL) {
1373 /* EOF handling */
1374 av_init_packet(&avpkt);
1375 avpkt.data = NULL;
1376 avpkt.size = 0;
1377 goto handle_eof;
1378 } else {
1379 avpkt = *pkt;
1380 }
1381
7636c8c6 1382 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1383 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1384
7636c8c6 1385 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1386 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1387 int ret = 0;
6291d7e4 1388 handle_eof:
6291d7e4 1389
23576b3f 1390 ist->last_dts = ist->next_dts;
8b0268a8 1391
d1780e01
AK
1392 if (avpkt.size && avpkt.size != pkt->size &&
1393 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
e3245b26
AK
1394 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1395 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1396 ist->showed_multi_packet_warning = 1;
1397 }
6291d7e4 1398
7636c8c6 1399 switch (ist->st->codec->codec_type) {
82963f8f 1400 case AVMEDIA_TYPE_AUDIO:
0629f612 1401 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1402 break;
1403 case AVMEDIA_TYPE_VIDEO:
0629f612 1404 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1405 if (avpkt.duration)
1406 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1407 else if (ist->st->avg_frame_rate.num)
82494835 1408 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1409 AV_TIME_BASE_Q);
b34856a1
AK
1410 else if (ist->st->codec->time_base.num != 0) {
1411 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1412 ist->st->codec->ticks_per_frame;
1413 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1414 }
82963f8f
AK
1415 break;
1416 case AVMEDIA_TYPE_SUBTITLE:
1417 ret = transcode_subtitles(ist, &avpkt, &got_output);
1418 break;
78162b4e
AK
1419 default:
1420 return -1;
1421 }
6291d7e4 1422
d3c1d37a
AK
1423 if (ret < 0)
1424 return ret;
aa38cff2
JG
1425 // touch data and size only if not EOF
1426 if (pkt) {
1427 avpkt.data += ret;
1428 avpkt.size -= ret;
1429 }
82963f8f 1430 if (!got_output) {
af8ad892 1431 continue;
82963f8f 1432 }
6291d7e4 1433 }
6291d7e4 1434
7204ec1a 1435 /* handle stream copy */
2a651b71 1436 if (!ist->decoding_needed) {
23576b3f 1437 ist->last_dts = ist->next_dts;
2a651b71
AK
1438 switch (ist->st->codec->codec_type) {
1439 case AVMEDIA_TYPE_AUDIO:
3101bb66 1440 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2a651b71
AK
1441 ist->st->codec->sample_rate;
1442 break;
1443 case AVMEDIA_TYPE_VIDEO:
1444 if (ist->st->codec->time_base.num != 0) {
7636c8c6 1445 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
3101bb66 1446 ist->next_dts += ((int64_t)AV_TIME_BASE *
2a651b71
AK
1447 ist->st->codec->time_base.num * ticks) /
1448 ist->st->codec->time_base.den;
1449 }
1450 break;
1451 }
1452 }
ea9367e9 1453 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1454 OutputStream *ost = output_streams[i];
7204ec1a
AK
1455
1456 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1457 continue;
1458
1459 do_streamcopy(ist, ost, pkt);
1460 }
1461
6291d7e4
AK
1462 return 0;
1463}
1464
ea9367e9 1465static void print_sdp(void)
6291d7e4 1466{
a23abaf3 1467 char sdp[16384];
af70aa45 1468 int i;
ea9367e9 1469 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1470
1471 if (!avc)
636ced8e 1472 exit_program(1);
ea9367e9 1473 for (i = 0; i < nb_output_files; i++)
2e215267 1474 avc[i] = output_files[i]->ctx;
6291d7e4 1475
ea9367e9 1476 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1477 printf("SDP:\n%s\n", sdp);
1478 fflush(stdout);
af70aa45 1479 av_freep(&avc);
6291d7e4
AK
1480}
1481
07fd0a22
AK
1482static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1483{
1484 int i;
1485 for (i = 0; hwaccels[i].name; i++)
1486 if (hwaccels[i].pix_fmt == pix_fmt)
1487 return &hwaccels[i];
1488 return NULL;
1489}
1490
1491static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1492{
1493 InputStream *ist = s->opaque;
1494 const enum AVPixelFormat *p;
1495 int ret;
1496
1497 for (p = pix_fmts; *p != -1; p++) {
1498 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1499 const HWAccel *hwaccel;
1500
1501 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1502 break;
1503
1504 hwaccel = get_hwaccel(*p);
1505 if (!hwaccel ||
1506 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1507 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1508 continue;
1509
1510 ret = hwaccel->init(s);
1511 if (ret < 0) {
1512 if (ist->hwaccel_id == hwaccel->id) {
1513 av_log(NULL, AV_LOG_FATAL,
1514 "%s hwaccel requested for input stream #%d:%d, "
1515 "but cannot be initialized.\n", hwaccel->name,
1516 ist->file_index, ist->st->index);
1517 exit_program(1);
1518 }
1519 continue;
1520 }
1521 ist->active_hwaccel_id = hwaccel->id;
1522 ist->hwaccel_pix_fmt = *p;
1523 break;
1524 }
1525
1526 return *p;
1527}
1528
1529static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1530{
1531 InputStream *ist = s->opaque;
1532
1533 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1534 return ist->hwaccel_get_buffer(s, frame, flags);
1535
1536 return avcodec_default_get_buffer2(s, frame, flags);
1537}
1538
ea9367e9 1539static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1540{
c854102d 1541 int i, ret;
2e215267 1542 InputStream *ist = input_streams[ist_index];
630902a1
AK
1543 if (ist->decoding_needed) {
1544 AVCodec *codec = ist->dec;
630902a1 1545 if (!codec) {
9a414d89 1546 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
630902a1
AK
1547 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1548 return AVERROR(EINVAL);
1549 }
1550
1551 /* update requested sample format for the decoder based on the
1552 corresponding encoder sample format */
1553 for (i = 0; i < nb_output_streams; i++) {
2e215267 1554 OutputStream *ost = output_streams[i];
630902a1
AK
1555 if (ost->source_index == ist_index) {
1556 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1557 break;
1558 }
1559 }
1560
07fd0a22
AK
1561 ist->st->codec->opaque = ist;
1562 ist->st->codec->get_format = get_format;
1563 ist->st->codec->get_buffer2 = get_buffer;
1564 ist->st->codec->thread_safe_callbacks = 1;
1565
9b2dc295 1566 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
64dca32c 1567
f3a6ad22
AK
1568 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1569 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1570 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->decoder_opts)) < 0) {
42cc6cef 1571 char errbuf[128];
c854102d
NC
1572 if (ret == AVERROR_EXPERIMENTAL)
1573 abort_codec_experimental(codec, 0);
42cc6cef
LB
1574
1575 av_strerror(ret, errbuf, sizeof(errbuf));
1576
1577 snprintf(error, error_len,
1578 "Error while opening decoder for input stream "
1579 "#%d:%d : %s",
1580 ist->file_index, ist->st->index, errbuf);
c854102d 1581 return ret;
630902a1 1582 }
f3a6ad22 1583 assert_avoptions(ist->decoder_opts);
630902a1
AK
1584 }
1585
23576b3f 1586 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
3101bb66 1587 ist->next_dts = AV_NOPTS_VALUE;
630902a1 1588 init_pts_correction(&ist->pts_ctx);
630902a1
AK
1589
1590 return 0;
1591}
1592
3b266da3
AK
1593static InputStream *get_input_stream(OutputStream *ost)
1594{
1595 if (ost->source_index >= 0)
1596 return input_streams[ost->source_index];
1597
1598 if (ost->filter) {
1599 FilterGraph *fg = ost->filter->graph;
1600 int i;
1601
1602 for (i = 0; i < fg->nb_inputs; i++)
1603 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1604 return fg->inputs[i]->ist;
1605 }
1606
1607 return NULL;
1608}
1609
19ad5673
AK
1610static void parse_forced_key_frames(char *kf, OutputStream *ost,
1611 AVCodecContext *avctx)
1612{
1613 char *p;
1614 int n = 1, i;
1615 int64_t t;
1616
1617 for (p = kf; *p; p++)
1618 if (*p == ',')
1619 n++;
1620 ost->forced_kf_count = n;
1621 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1622 if (!ost->forced_kf_pts) {
1623 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
636ced8e 1624 exit_program(1);
19ad5673 1625 }
4c679750
RD
1626
1627 p = kf;
19ad5673 1628 for (i = 0; i < n; i++) {
4c679750
RD
1629 char *next = strchr(p, ',');
1630
1631 if (next)
1632 *next++ = 0;
1633
19ad5673
AK
1634 t = parse_time_or_die("force_key_frames", p, 1);
1635 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1636
1637 p = next;
19ad5673
AK
1638 }
1639}
1640
ea9367e9 1641static int transcode_init(void)
6291d7e4 1642{
2c474ddb 1643 int ret = 0, i, j, k;
1bb77e51 1644 AVFormatContext *oc;
4288e031 1645 OutputStream *ost;
6291d7e4
AK
1646 InputStream *ist;
1647 char error[1024];
1648 int want_sdp = 1;
b0c9e8e0 1649
f4805328
AK
1650 /* init framerate emulation */
1651 for (i = 0; i < nb_input_files; i++) {
2e215267 1652 InputFile *ifile = input_files[i];
f4805328
AK
1653 if (ifile->rate_emu)
1654 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1655 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1656 }
6291d7e4
AK
1657
1658 /* output stream init */
03f30c83 1659 for (i = 0; i < nb_output_files; i++) {
2e215267 1660 oc = output_files[i]->ctx;
1bb77e51
AK
1661 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1662 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1663 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1664 return AVERROR(EINVAL);
6291d7e4 1665 }
6291d7e4
AK
1666 }
1667
3b266da3
AK
1668 /* init complex filtergraphs */
1669 for (i = 0; i < nb_filtergraphs; i++)
1670 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1671 return ret;
1672
6291d7e4 1673 /* for each output stream, we compute the right encoding parameters */
4288e031 1674 for (i = 0; i < nb_output_streams; i++) {
65ed9e75 1675 AVCodecContext *enc_ctx;
650a5206 1676 AVCodecContext *dec_ctx = NULL;
2e215267
AK
1677 ost = output_streams[i];
1678 oc = output_files[ost->file_index]->ctx;
3b266da3 1679 ist = get_input_stream(ost);
6291d7e4 1680
4dbc6cee
AK
1681 if (ost->attachment_filename)
1682 continue;
1683
65ed9e75 1684 enc_ctx = ost->st->codec;
6291d7e4 1685
3b266da3 1686 if (ist) {
650a5206 1687 dec_ctx = ist->st->codec;
3b266da3
AK
1688
1689 ost->st->disposition = ist->st->disposition;
65ed9e75
AK
1690 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1691 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
3b266da3 1692 }
6291d7e4 1693
3d813e4c 1694 if (ost->stream_copy) {
538bf767 1695 AVRational sar;
8c4022ac
AK
1696 uint64_t extra_size;
1697
1698 av_assert0(ist && !ost->filter);
1699
650a5206 1700 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1701
e6d2b737 1702 if (extra_size > INT_MAX) {
eaf2d37a 1703 return AVERROR(EINVAL);
e6d2b737 1704 }
6291d7e4
AK
1705
1706 /* if stream_copy is selected, no need to decode or encode */
65ed9e75
AK
1707 enc_ctx->codec_id = dec_ctx->codec_id;
1708 enc_ctx->codec_type = dec_ctx->codec_type;
6291d7e4 1709
65ed9e75 1710 if (!enc_ctx->codec_tag) {
03f30c83 1711 if (!oc->oformat->codec_tag ||
65ed9e75 1712 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
650a5206 1713 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
65ed9e75 1714 enc_ctx->codec_tag = dec_ctx->codec_tag;
6291d7e4
AK
1715 }
1716
65ed9e75
AK
1717 enc_ctx->bit_rate = dec_ctx->bit_rate;
1718 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1719 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1720 enc_ctx->field_order = dec_ctx->field_order;
1721 enc_ctx->extradata = av_mallocz(extra_size);
1722 if (!enc_ctx->extradata) {
eaf2d37a 1723 return AVERROR(ENOMEM);
e6d2b737 1724 }
65ed9e75
AK
1725 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1726 enc_ctx->extradata_size = dec_ctx->extradata_size;
7bb3e625 1727 if (!copy_tb) {
65ed9e75
AK
1728 enc_ctx->time_base = dec_ctx->time_base;
1729 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1730 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1731 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
03f30c83 1732 } else
65ed9e75 1733 enc_ctx->time_base = ist->st->time_base;
03f30c83 1734
65ed9e75 1735 ost->parser = av_parser_init(enc_ctx->codec_id);
c872d310 1736
65ed9e75 1737 switch (enc_ctx->codec_type) {
6291d7e4 1738 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1739 if (audio_volume != 256) {
e3245b26 1740 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
636ced8e 1741 exit_program(1);
6291d7e4 1742 }
65ed9e75
AK
1743 enc_ctx->channel_layout = dec_ctx->channel_layout;
1744 enc_ctx->sample_rate = dec_ctx->sample_rate;
1745 enc_ctx->channels = dec_ctx->channels;
1746 enc_ctx->frame_size = dec_ctx->frame_size;
1747 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1748 enc_ctx->block_align = dec_ctx->block_align;
6291d7e4
AK
1749 break;
1750 case AVMEDIA_TYPE_VIDEO:
65ed9e75
AK
1751 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1752 enc_ctx->width = dec_ctx->width;
1753 enc_ctx->height = dec_ctx->height;
1754 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
538bf767 1755 if (ost->frame_aspect_ratio)
65ed9e75 1756 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
538bf767
AK
1757 else if (ist->st->sample_aspect_ratio.num)
1758 sar = ist->st->sample_aspect_ratio;
1759 else
650a5206 1760 sar = dec_ctx->sample_aspect_ratio;
65ed9e75 1761 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
6291d7e4
AK
1762 break;
1763 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75
AK
1764 enc_ctx->width = dec_ctx->width;
1765 enc_ctx->height = dec_ctx->height;
6291d7e4
AK
1766 break;
1767 case AVMEDIA_TYPE_DATA:
3ccd1580 1768 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1769 break;
1770 default:
1771 abort();
1772 }
1773 } else {
2994913d
AK
1774 if (!ost->enc) {
1775 /* should only happen when a default codec is not present. */
1776 snprintf(error, sizeof(error), "Automatic encoder selection "
1777 "failed for output stream #%d:%d. Default encoder for "
1778 "format %s is probably disabled. Please choose an "
1779 "encoder manually.\n", ost->file_index, ost->index,
1780 oc->oformat->name);
1781 ret = AVERROR(EINVAL);
1782 goto dump_format;
1783 }
03f30c83 1784
3b266da3
AK
1785 if (ist)
1786 ist->decoding_needed = 1;
11fdb7e1 1787 ost->encoding_needed = 1;
03f30c83 1788
74b961db
AK
1789 /*
1790 * We want CFR output if and only if one of those is true:
1791 * 1) user specified output framerate with -r
1792 * 2) user specified -vsync cfr
1793 * 3) output format is CFR and the user didn't force vsync to
1794 * something else than CFR
1795 *
1796 * in such a case, set ost->frame_rate
1797 */
65ed9e75 1798 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
74b961db
AK
1799 !ost->frame_rate.num && ist &&
1800 (video_sync_method == VSYNC_CFR ||
1801 (video_sync_method == VSYNC_AUTO &&
1802 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2ce8bca5
AK
1803 if (ist->framerate.num)
1804 ost->frame_rate = ist->framerate;
1805 else if (ist->st->avg_frame_rate.num)
1806 ost->frame_rate = ist->st->avg_frame_rate;
1807 else {
1808 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1809 "for the output stream #%d:%d, but no information "
1810 "about the input framerate is available. Falling "
1811 "back to a default value of 25fps. Use the -r option "
1812 "if you want a different framerate.\n",
1813 ost->file_index, ost->index);
1814 ost->frame_rate = (AVRational){ 25, 1 };
1815 }
44b0b85f 1816
74b961db
AK
1817 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1818 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1819 ost->frame_rate = ost->enc->supported_framerates[idx];
1820 }
1821 }
1822
369cb092 1823 if (!ost->filter &&
65ed9e75
AK
1824 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1825 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1826 FilterGraph *fg;
1827 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1828 if (configure_filtergraph(fg)) {
3b266da3 1829 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
636ced8e 1830 exit_program(1);
3b266da3 1831 }
369cb092 1832 }
3b266da3 1833
65ed9e75 1834 switch (enc_ctx->codec_type) {
369cb092 1835 case AVMEDIA_TYPE_AUDIO:
65ed9e75
AK
1836 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1837 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1838 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1839 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1840 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
369cb092
AK
1841 break;
1842 case AVMEDIA_TYPE_VIDEO:
65ed9e75 1843 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1844
65ed9e75
AK
1845 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1846 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1847 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3b266da3 1848 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
65ed9e75 1849 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
3b266da3 1850 ost->filter->filter->inputs[0]->sample_aspect_ratio;
65ed9e75 1851 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1852
93afb6c9
AK
1853 ost->st->avg_frame_rate = ost->frame_rate;
1854
650a5206 1855 if (dec_ctx &&
65ed9e75
AK
1856 (enc_ctx->width != dec_ctx->width ||
1857 enc_ctx->height != dec_ctx->height ||
1858 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1859 enc_ctx->bits_per_raw_sample = 0;
b7327887
AK
1860 }
1861
19ad5673
AK
1862 if (ost->forced_keyframes)
1863 parse_forced_key_frames(ost->forced_keyframes, ost,
1864 ost->st->codec);
6291d7e4
AK
1865 break;
1866 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75 1867 enc_ctx->time_base = (AVRational){1, 1000};
6291d7e4
AK
1868 break;
1869 default:
1870 abort();
1871 break;
1872 }
1873 /* two pass mode */
65ed9e75 1874 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1875 char logfilename[1024];
1876 FILE *f;
1877
1878 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1879 ost->logfile_prefix ? ost->logfile_prefix :
1880 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1881 i);
6e8be949 1882 if (!strcmp(ost->enc->name, "libx264")) {
9580818c 1883 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
6e8be949 1884 } else {
65ed9e75 1885 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
64334ddb
AK
1886 f = fopen(logfilename, "wb");
1887 if (!f) {
1888 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1889 logfilename, strerror(errno));
636ced8e 1890 exit_program(1);
64334ddb
AK
1891 }
1892 ost->logfile = f;
1893 } else {
1894 char *logbuffer;
1895 size_t logbuffer_size;
1896 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1897 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1898 logfilename);
636ced8e 1899 exit_program(1);
64334ddb 1900 }
65ed9e75 1901 enc_ctx->stats_in = logbuffer;
6291d7e4 1902 }
6e8be949 1903 }
6291d7e4
AK
1904 }
1905 }
6291d7e4
AK
1906 }
1907
1908 /* open each encoder */
4288e031 1909 for (i = 0; i < nb_output_streams; i++) {
2e215267 1910 ost = output_streams[i];
6291d7e4 1911 if (ost->encoding_needed) {
03f30c83 1912 AVCodec *codec = ost->enc;
3b266da3 1913 AVCodecContext *dec = NULL;
3b266da3
AK
1914
1915 if ((ist = get_input_stream(ost)))
1916 dec = ist->st->codec;
1917 if (dec && dec->subtitle_header) {
6291d7e4
AK
1918 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1919 if (!ost->st->codec->subtitle_header) {
1920 ret = AVERROR(ENOMEM);
1921 goto dump_format;
1922 }
1923 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1924 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1925 }
9580818c
AK
1926 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1927 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1928 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
c854102d
NC
1929 if (ret == AVERROR_EXPERIMENTAL)
1930 abort_codec_experimental(codec, 1);
9a414d89 1931 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 1932 ost->file_index, ost->index);
6291d7e4
AK
1933 goto dump_format;
1934 }
9580818c 1935 assert_avoptions(ost->encoder_opts);
6291d7e4
AK
1936 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1937 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1938 "It takes bits/s as argument, not kbits/s\n");
df0229a7 1939 } else {
9580818c 1940 av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
6291d7e4
AK
1941 }
1942 }
1943
630902a1
AK
1944 /* init input streams */
1945 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1946 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1947 goto dump_format;
6291d7e4 1948
2c474ddb
AK
1949 /* discard unused programs */
1950 for (i = 0; i < nb_input_files; i++) {
2e215267 1951 InputFile *ifile = input_files[i];
2c474ddb
AK
1952 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1953 AVProgram *p = ifile->ctx->programs[j];
1954 int discard = AVDISCARD_ALL;
1955
1956 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1957 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1958 discard = AVDISCARD_DEFAULT;
1959 break;
1960 }
1961 p->discard = discard;
1962 }
1963 }
1964
6291d7e4 1965 /* open files and write file headers */
af70aa45 1966 for (i = 0; i < nb_output_files; i++) {
2e215267 1967 oc = output_files[i]->ctx;
1bb77e51 1968 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
1969 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1970 char errbuf[128];
1e340af8
LB
1971 av_strerror(ret, errbuf, sizeof(errbuf));
1972 snprintf(error, sizeof(error),
1973 "Could not write header for output file #%d "
1974 "(incorrect codec parameters ?): %s",
1975 i, errbuf);
6291d7e4
AK
1976 ret = AVERROR(EINVAL);
1977 goto dump_format;
1978 }
2e215267 1979 assert_avoptions(output_files[i]->opts);
1bb77e51 1980 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
1981 want_sdp = 0;
1982 }
1983 }
1984
1985 dump_format:
1986 /* dump the file output parameters - cannot be done before in case
1987 of stream copy */
03f30c83 1988 for (i = 0; i < nb_output_files; i++) {
2e215267 1989 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
1990 }
1991
1992 /* dump the stream mapping */
e3245b26 1993 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
1994 for (i = 0; i < nb_input_streams; i++) {
1995 ist = input_streams[i];
1996
1997 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
1998 if (ist->filters[j]->graph->graph_desc) {
1999 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2000 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2001 ist->filters[j]->name);
3b266da3
AK
2002 if (nb_filtergraphs > 1)
2003 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2004 av_log(NULL, AV_LOG_INFO, "\n");
2005 }
2006 }
2007 }
2008
e3245b26 2009 for (i = 0; i < nb_output_streams; i++) {
2e215267 2010 ost = output_streams[i];
4dbc6cee
AK
2011
2012 if (ost->attachment_filename) {
2013 /* an attached file */
2014 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2015 ost->attachment_filename, ost->file_index, ost->index);
2016 continue;
2017 }
3b266da3
AK
2018
2019 if (ost->filter && ost->filter->graph->graph_desc) {
2020 /* output from a complex graph */
cf6c38c6 2021 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2022 if (nb_filtergraphs > 1)
2023 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2024
2025 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2026 ost->index, ost->enc ? ost->enc->name : "?");
2027 continue;
2028 }
2029
9a414d89 2030 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2031 input_streams[ost->source_index]->file_index,
2032 input_streams[ost->source_index]->st->index,
e3245b26
AK
2033 ost->file_index,
2034 ost->index);
2e215267 2035 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2036 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2037 ost->sync_ist->file_index,
2038 ost->sync_ist->st->index);
3d813e4c 2039 if (ost->stream_copy)
e3245b26
AK
2040 av_log(NULL, AV_LOG_INFO, " (copy)");
2041 else
2e215267
AK
2042 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2043 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2044 ost->enc ? ost->enc->name : "?");
2045 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2046 }
2047
2048 if (ret) {
e3245b26 2049 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2050 return ret;
6291d7e4
AK
2051 }
2052
2053 if (want_sdp) {
ea9367e9 2054 print_sdp();
6291d7e4
AK
2055 }
2056
eaf2d37a
AC
2057 return 0;
2058}
2059
c1ef30a6 2060/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
2061static int need_output(void)
2062{
2063 int i;
2064
2065 for (i = 0; i < nb_output_streams; i++) {
2066 OutputStream *ost = output_streams[i];
2067 OutputFile *of = output_files[ost->file_index];
2068 AVFormatContext *os = output_files[ost->file_index]->ctx;
2069
57d24225 2070 if (ost->finished ||
2f51ec2b
AK
2071 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2072 continue;
e58b75f7 2073 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2074 int j;
2075 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 2076 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
2077 continue;
2078 }
2079
2080 return 1;
2081 }
2082
2083 return 0;
2084}
2085
83916029 2086static InputFile *select_input_file(void)
a508e7a1 2087{
83916029 2088 InputFile *ifile = NULL;
a508e7a1 2089 int64_t ipts_min = INT64_MAX;
83916029 2090 int i;
a508e7a1
AK
2091
2092 for (i = 0; i < nb_input_streams; i++) {
2093 InputStream *ist = input_streams[i];
2094 int64_t ipts = ist->last_dts;
2095
0b26ef42 2096 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
2097 continue;
2098 if (!input_files[ist->file_index]->eof_reached) {
2099 if (ipts < ipts_min) {
2100 ipts_min = ipts;
83916029 2101 ifile = input_files[ist->file_index];
a508e7a1
AK
2102 }
2103 }
2104 }
2105
83916029 2106 return ifile;
a508e7a1
AK
2107}
2108
47b812e9 2109#if HAVE_PTHREADS
5db5169e
AK
2110static void *input_thread(void *arg)
2111{
2112 InputFile *f = arg;
2113 int ret = 0;
2114
2115 while (!transcoding_finished && ret >= 0) {
2116 AVPacket pkt;
2117 ret = av_read_frame(f->ctx, &pkt);
2118
2119 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2120 av_usleep(10000);
5db5169e
AK
2121 ret = 0;
2122 continue;
2123 } else if (ret < 0)
2124 break;
2125
2126 pthread_mutex_lock(&f->fifo_lock);
2127 while (!av_fifo_space(f->fifo))
2128 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2129
2130 av_dup_packet(&pkt);
2131 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2132
2133 pthread_mutex_unlock(&f->fifo_lock);
2134 }
2135
2136 f->finished = 1;
2137 return NULL;
2138}
2139
2140static void free_input_threads(void)
2141{
2142 int i;
2143
2144 if (nb_input_files == 1)
2145 return;
2146
2147 transcoding_finished = 1;
2148
2149 for (i = 0; i < nb_input_files; i++) {
2150 InputFile *f = input_files[i];
2151 AVPacket pkt;
2152
9034b0ed 2153 if (!f->fifo || f->joined)
5db5169e
AK
2154 continue;
2155
2156 pthread_mutex_lock(&f->fifo_lock);
2157 while (av_fifo_size(f->fifo)) {
2158 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2159 av_free_packet(&pkt);
2160 }
2161 pthread_cond_signal(&f->fifo_cond);
2162 pthread_mutex_unlock(&f->fifo_lock);
2163
2164 pthread_join(f->thread, NULL);
2165 f->joined = 1;
2166
2167 while (av_fifo_size(f->fifo)) {
2168 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2169 av_free_packet(&pkt);
2170 }
2171 av_fifo_free(f->fifo);
2172 }
2173}
2174
2175static int init_input_threads(void)
2176{
2177 int i, ret;
2178
2179 if (nb_input_files == 1)
2180 return 0;
2181
2182 for (i = 0; i < nb_input_files; i++) {
2183 InputFile *f = input_files[i];
2184
2185 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2186 return AVERROR(ENOMEM);
2187
2188 pthread_mutex_init(&f->fifo_lock, NULL);
2189 pthread_cond_init (&f->fifo_cond, NULL);
2190
2191 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2192 return AVERROR(ret);
2193 }
2194 return 0;
2195}
2196
2197static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2198{
2199 int ret = 0;
2200
2201 pthread_mutex_lock(&f->fifo_lock);
2202
2203 if (av_fifo_size(f->fifo)) {
2204 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2205 pthread_cond_signal(&f->fifo_cond);
2206 } else {
2207 if (f->finished)
2208 ret = AVERROR_EOF;
2209 else
2210 ret = AVERROR(EAGAIN);
2211 }
2212
2213 pthread_mutex_unlock(&f->fifo_lock);
2214
2215 return ret;
2216}
2217#endif
2218
2219static int get_input_packet(InputFile *f, AVPacket *pkt)
2220{
b4a5a292
AK
2221 if (f->rate_emu) {
2222 int i;
2223 for (i = 0; i < f->nb_streams; i++) {
2224 InputStream *ist = input_streams[f->ist_index + i];
2225 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2226 int64_t now = av_gettime() - ist->start;
2227 if (pts > now)
2228 return AVERROR(EAGAIN);
2229 }
2230 }
2231
47b812e9 2232#if HAVE_PTHREADS
5db5169e
AK
2233 if (nb_input_files > 1)
2234 return get_input_packet_mt(f, pkt);
2235#endif
2236 return av_read_frame(f->ctx, pkt);
2237}
2238
0b26ef42
AK
2239static int got_eagain(void)
2240{
2241 int i;
2242 for (i = 0; i < nb_input_files; i++)
2243 if (input_files[i]->eagain)
2244 return 1;
2245 return 0;
2246}
2247
2248static void reset_eagain(void)
2249{
2250 int i;
2251 for (i = 0; i < nb_input_files; i++)
2252 input_files[i]->eagain = 0;
2253}
2254
c1ef30a6 2255/*
0c00fd80
AK
2256 * Read one packet from an input file and send it for
2257 * - decoding -> lavfi (audio/video)
2258 * - decoding -> encoding -> muxing (subtitles)
2259 * - muxing (streamcopy)
2260 *
c1ef30a6 2261 * Return
0c00fd80
AK
2262 * - 0 -- one packet was read and processed
2263 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2264 * this function should be called again
2265 * - AVERROR_EOF -- this function should not be called again
2266 */
2267static int process_input(void)
2268{
2269 InputFile *ifile;
2270 AVFormatContext *is;
2271 InputStream *ist;
2272 AVPacket pkt;
2273 int ret, i, j;
2274
2275 /* select the stream that we must read now */
2276 ifile = select_input_file();
2277 /* if none, if is finished */
2278 if (!ifile) {
2279 if (got_eagain()) {
2280 reset_eagain();
2281 av_usleep(10000);
2282 return AVERROR(EAGAIN);
2283 }
2284 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2285 return AVERROR_EOF;
2286 }
2287
2288 is = ifile->ctx;
2289 ret = get_input_packet(ifile, &pkt);
2290
2291 if (ret == AVERROR(EAGAIN)) {
2292 ifile->eagain = 1;
2293 return ret;
2294 }
2295 if (ret < 0) {
2296 if (ret != AVERROR_EOF) {
2297 print_error(is->filename, ret);
2298 if (exit_on_error)
636ced8e 2299 exit_program(1);
0c00fd80
AK
2300 }
2301 ifile->eof_reached = 1;
2302
2303 for (i = 0; i < ifile->nb_streams; i++) {
2304 ist = input_streams[ifile->ist_index + i];
2305 if (ist->decoding_needed)
2306 output_packet(ist, NULL);
2307
2308 /* mark all outputs that don't go through lavfi as finished */
2309 for (j = 0; j < nb_output_streams; j++) {
2310 OutputStream *ost = output_streams[j];
2311
2312 if (ost->source_index == ifile->ist_index + i &&
2313 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2314 ost->finished= 1;
0c00fd80
AK
2315 }
2316 }
2317
3c0df905 2318 return AVERROR(EAGAIN);
0c00fd80
AK
2319 }
2320
2321 reset_eagain();
2322
2323 if (do_pkt_dump) {
2324 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2325 is->streams[pkt.stream_index]);
2326 }
2327 /* the following test is needed in case new streams appear
2328 dynamically in stream : we ignore them */
2329 if (pkt.stream_index >= ifile->nb_streams)
2330 goto discard_packet;
2331
2332 ist = input_streams[ifile->ist_index + pkt.stream_index];
47543450
AK
2333
2334 ist->data_size += pkt.size;
59444c76 2335 ist->nb_packets++;
47543450 2336
0c00fd80
AK
2337 if (ist->discard)
2338 goto discard_packet;
2339
59444c76
AK
2340 /* add the stream-global side data to the first packet */
2341 if (ist->nb_packets == 1)
2342 for (i = 0; i < ist->st->nb_side_data; i++) {
2343 AVPacketSideData *src_sd = &ist->st->side_data[i];
2344 uint8_t *dst_data;
2345
2346 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2347 continue;
2348
2349 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2350 if (!dst_data)
2351 exit_program(1);
2352
2353 memcpy(dst_data, src_sd->data, src_sd->size);
2354 }
2355
0c00fd80
AK
2356 if (pkt.dts != AV_NOPTS_VALUE)
2357 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2358 if (pkt.pts != AV_NOPTS_VALUE)
2359 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2360
2361 if (pkt.pts != AV_NOPTS_VALUE)
2362 pkt.pts *= ist->ts_scale;
2363 if (pkt.dts != AV_NOPTS_VALUE)
2364 pkt.dts *= ist->ts_scale;
2365
2366 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2367 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2368 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2369 int64_t delta = pkt_dts - ist->next_dts;
2370
2371 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2372 ifile->ts_offset -= delta;
2373 av_log(NULL, AV_LOG_DEBUG,
2374 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2375 delta, ifile->ts_offset);
2376 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2377 if (pkt.pts != AV_NOPTS_VALUE)
2378 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2379 }
2380 }
2381
2382 ret = output_packet(ist, &pkt);
2383 if (ret < 0) {
2384 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2385 ist->file_index, ist->st->index);
2386 if (exit_on_error)
636ced8e 2387 exit_program(1);
0c00fd80
AK
2388 }
2389
2390discard_packet:
2391 av_free_packet(&pkt);
2392
2393 return 0;
2394}
2395
eaf2d37a
AC
2396/*
2397 * The following code is the main loop of the file converter
2398 */
ea9367e9 2399static int transcode(void)
eaf2d37a 2400{
0c00fd80
AK
2401 int ret, i, need_input = 1;
2402 AVFormatContext *os;
eaf2d37a
AC
2403 OutputStream *ost;
2404 InputStream *ist;
eaf2d37a
AC
2405 int64_t timer_start;
2406
ea9367e9 2407 ret = transcode_init();
eaf2d37a
AC
2408 if (ret < 0)
2409 goto fail;
2410
e3245b26 2411 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2412 term_init();
2413
2414 timer_start = av_gettime();
2415
47b812e9 2416#if HAVE_PTHREADS
5db5169e
AK
2417 if ((ret = init_input_threads()) < 0)
2418 goto fail;
2419#endif
2420
c0fbf971 2421 while (!received_sigterm) {
3b266da3 2422 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2423 if (!need_output()) {
2424 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2425 break;
2f51ec2b 2426 }
3b266da3 2427
0c00fd80
AK
2428 /* read and process one input packet if needed */
2429 if (need_input) {
2430 ret = process_input();
2431 if (ret == AVERROR_EOF)
2432 need_input = 0;
6291d7e4
AK
2433 }
2434
0c00fd80 2435 ret = poll_filters();
6291d7e4 2436 if (ret < 0) {
0c00fd80 2437 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2438 continue;
6291d7e4 2439
0c00fd80
AK
2440 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2441 break;
6291d7e4
AK
2442 }
2443
6291d7e4 2444 /* dump report by using the output first video and audio streams */
ea9367e9 2445 print_report(0, timer_start);
6291d7e4 2446 }
47b812e9 2447#if HAVE_PTHREADS
5db5169e
AK
2448 free_input_threads();
2449#endif
6291d7e4
AK
2450
2451 /* at the end of stream, we must flush the decoder buffers */
2452 for (i = 0; i < nb_input_streams; i++) {
2e215267 2453 ist = input_streams[i];
9e8aae44 2454 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2455 output_packet(ist, NULL);
6291d7e4
AK
2456 }
2457 }
560f7774 2458 poll_filters();
ea9367e9 2459 flush_encoders();
6291d7e4
AK
2460
2461 term_exit();
2462
2463 /* write the trailer if needed and close file */
7636c8c6 2464 for (i = 0; i < nb_output_files; i++) {
2e215267 2465 os = output_files[i]->ctx;
6291d7e4
AK
2466 av_write_trailer(os);
2467 }
2468
2469 /* dump report by using the first video and audio streams */
ea9367e9 2470 print_report(1, timer_start);
6291d7e4
AK
2471
2472 /* close each encoder */
4288e031 2473 for (i = 0; i < nb_output_streams; i++) {
2e215267 2474 ost = output_streams[i];
6291d7e4
AK
2475 if (ost->encoding_needed) {
2476 av_freep(&ost->st->codec->stats_in);
2477 avcodec_close(ost->st->codec);
2478 }
6291d7e4
AK
2479 }
2480
2481 /* close each decoder */
2482 for (i = 0; i < nb_input_streams; i++) {
2e215267 2483 ist = input_streams[i];
6291d7e4
AK
2484 if (ist->decoding_needed) {
2485 avcodec_close(ist->st->codec);
07fd0a22
AK
2486 if (ist->hwaccel_uninit)
2487 ist->hwaccel_uninit(ist->st->codec);
6291d7e4
AK
2488 }
2489 }
2490
2491 /* finished ! */
2492 ret = 0;
2493
2494 fail:
47b812e9 2495#if HAVE_PTHREADS
5db5169e
AK
2496 free_input_threads();
2497#endif
6291d7e4 2498
4288e031
AK
2499 if (output_streams) {
2500 for (i = 0; i < nb_output_streams; i++) {
2e215267 2501 ost = output_streams[i];
6291d7e4 2502 if (ost) {
3d813e4c 2503 if (ost->stream_copy)
6291d7e4
AK
2504 av_freep(&ost->st->codec->extradata);
2505 if (ost->logfile) {
2506 fclose(ost->logfile);
2507 ost->logfile = NULL;
2508 }
6291d7e4 2509 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2510 av_free(ost->forced_kf_pts);
9580818c 2511 av_dict_free(&ost->encoder_opts);
5c7db097 2512 av_dict_free(&ost->resample_opts);
6291d7e4
AK
2513 }
2514 }
6291d7e4
AK
2515 }
2516 return ret;
2517}
2518
f5e66827 2519static int64_t getutime(void)
a2c0b830 2520{
f5e66827
AK
2521#if HAVE_GETRUSAGE
2522 struct rusage rusage;
a2c0b830 2523
f5e66827
AK
2524 getrusage(RUSAGE_SELF, &rusage);
2525 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2526#elif HAVE_GETPROCESSTIMES
2527 HANDLE proc;
2528 FILETIME c, e, k, u;
2529 proc = GetCurrentProcess();
2530 GetProcessTimes(proc, &c, &e, &k, &u);
2531 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2532#else
2533 return av_gettime();
2534#endif
a2c0b830
AK
2535}
2536
f5e66827 2537static int64_t getmaxrss(void)
6291d7e4 2538{
f5e66827
AK
2539#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2540 struct rusage rusage;
2541 getrusage(RUSAGE_SELF, &rusage);
2542 return (int64_t)rusage.ru_maxrss * 1024;
2543#elif HAVE_GETPROCESSMEMORYINFO
2544 HANDLE proc;
2545 PROCESS_MEMORY_COUNTERS memcounters;
2546 proc = GetCurrentProcess();
2547 memcounters.cb = sizeof(memcounters);
2548 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2549 return memcounters.PeakPagefileUsage;
2550#else
6291d7e4 2551 return 0;
f5e66827 2552#endif
6291d7e4
AK
2553}
2554
6291d7e4
AK
2555int main(int argc, char **argv)
2556{
77bd1bc7 2557 int ret;
6291d7e4
AK
2558 int64_t ti;
2559
636ced8e 2560 register_exit(avconv_cleanup);
5e3f9979 2561
6291d7e4 2562 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2563 parse_loglevel(argc, argv, options);
6291d7e4
AK
2564
2565 avcodec_register_all();
2566#if CONFIG_AVDEVICE
2567 avdevice_register_all();
2568#endif
6291d7e4 2569 avfilter_register_all();
6291d7e4 2570 av_register_all();
776f2bb9 2571 avformat_network_init();
6291d7e4 2572
6291d7e4
AK
2573 show_banner();
2574
77bd1bc7
AK
2575 /* parse options and open all input/output files */
2576 ret = avconv_parse_options(argc, argv);
2577 if (ret < 0)
636ced8e 2578 exit_program(1);
6291d7e4 2579
7636c8c6 2580 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2581 show_usage();
e3245b26 2582 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
636ced8e 2583 exit_program(1);
6291d7e4
AK
2584 }
2585
2586 /* file converter / grab */
2587 if (nb_output_files <= 0) {
2588 fprintf(stderr, "At least one output file must be specified\n");
636ced8e 2589 exit_program(1);
6291d7e4
AK
2590 }
2591
6291d7e4 2592 ti = getutime();
ea9367e9 2593 if (transcode() < 0)
636ced8e 2594 exit_program(1);
6291d7e4
AK
2595 ti = getutime() - ti;
2596 if (do_benchmark) {
2597 int maxrss = getmaxrss() / 1024;
2598 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2599 }
2600
636ced8e 2601 exit_program(0);
dad09ff9 2602 return 0;
6291d7e4 2603}