avconv: do not use the stream codec context for decoding
[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
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209 avcodec_free_context(&ist->dec_ctx);
210
2e215267 211 av_freep(&input_streams[i]);
9179f27c 212 }
6291d7e4 213
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214 if (vstats_file)
215 fclose(vstats_file);
216 av_free(vstats_filename);
217
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218 av_freep(&input_streams);
219 av_freep(&input_files);
4288e031 220 av_freep(&output_streams);
af70aa45 221 av_freep(&output_files);
6291d7e4 222
6291d7e4 223 uninit_opts();
6291d7e4 224
776f2bb9 225 avformat_network_deinit();
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226
227 if (received_sigterm) {
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228 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
229 (int) received_sigterm);
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230 exit (255);
231 }
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232}
233
f5e66827 234void assert_avoptions(AVDictionary *m)
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235{
236 AVDictionaryEntry *t;
237 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 238 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
636ced8e 239 exit_program(1);
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240 }
241}
242
c854102d 243static void abort_codec_experimental(AVCodec *c, int encoder)
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244{
245 const char *codec_string = encoder ? "encoder" : "decoder";
246 AVCodec *codec;
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247 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
248 "results.\nAdd '-strict experimental' if you want to use it.\n",
249 codec_string, c->name);
250 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
251 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
252 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
253 codec_string, codec->name);
636ced8e 254 exit_program(1);
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255}
256
c1ef30a6 257/*
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258 * Update the requested input sample format based on the output sample format.
259 * This is currently only used to request float output from decoders which
260 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
261 * Ideally this will be removed in the future when decoders do not do format
262 * conversion and only output in their native format.
263 */
264static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
265 AVCodecContext *enc)
266{
267 /* if sample formats match or a decoder sample format has already been
268 requested, just return */
269 if (enc->sample_fmt == dec->sample_fmt ||
270 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
271 return;
272
273 /* if decoder supports more than one output format */
274 if (dec_codec && dec_codec->sample_fmts &&
275 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
276 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
277 const enum AVSampleFormat *p;
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278 int min_dec = INT_MAX, min_inc = INT_MAX;
279 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
280 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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281
282 /* find a matching sample format in the encoder */
283 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
284 if (*p == enc->sample_fmt) {
285 dec->request_sample_fmt = *p;
286 return;
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287 } else {
288 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
289 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
290 int fmt_diff = 32 * abs(dfmt - efmt);
291 if (av_sample_fmt_is_planar(*p) !=
292 av_sample_fmt_is_planar(enc->sample_fmt))
293 fmt_diff++;
294 if (dfmt == efmt) {
295 min_inc = fmt_diff;
296 inc_fmt = *p;
297 } else if (dfmt > efmt) {
298 if (fmt_diff < min_inc) {
299 min_inc = fmt_diff;
300 inc_fmt = *p;
301 }
302 } else {
303 if (fmt_diff < min_dec) {
304 min_dec = fmt_diff;
305 dec_fmt = *p;
306 }
307 }
308 }
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309 }
310
311 /* if none match, provide the one that matches quality closest */
fd41cb43 312 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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313 }
314}
315
f15f02c2 316static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 317{
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318 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
319 AVCodecContext *avctx = ost->st->codec;
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320 int ret;
321
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322 /*
323 * Audio encoders may split the packets -- #frames in != #packets out.
324 * But there is no reordering, so we can limit the number of output packets
325 * by simply dropping them here.
326 * Counting encoded video frames needs to be done separately because of
327 * reordering, see do_video_out()
328 */
329 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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330 if (ost->frame_number >= ost->max_frames) {
331 av_free_packet(pkt);
99932847 332 return;
c9594fe0 333 }
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334 ost->frame_number++;
335 }
336
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337 while (bsfc) {
338 AVPacket new_pkt = *pkt;
339 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
340 &new_pkt.data, &new_pkt.size,
341 pkt->data, pkt->size,
342 pkt->flags & AV_PKT_FLAG_KEY);
343 if (a > 0) {
6291d7e4 344 av_free_packet(pkt);
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345 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
346 av_buffer_default_free, NULL, 0);
347 if (!new_pkt.buf)
636ced8e 348 exit_program(1);
7636c8c6 349 } else if (a < 0) {
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350 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
351 bsfc->filter->name, pkt->stream_index,
352 avctx->codec ? avctx->codec->name : "copy");
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353 print_error("", a);
354 if (exit_on_error)
636ced8e 355 exit_program(1);
6291d7e4 356 }
7636c8c6 357 *pkt = new_pkt;
6291d7e4 358
7636c8c6 359 bsfc = bsfc->next;
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360 }
361
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362 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
363 ost->last_mux_dts != AV_NOPTS_VALUE &&
364 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
365 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
366 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
367 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
368 if (exit_on_error) {
369 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
636ced8e 370 exit_program(1);
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371 }
372 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
373 "in incorrect timestamps in the output file.\n",
374 ost->last_mux_dts + 1);
375 pkt->dts = ost->last_mux_dts + 1;
376 if (pkt->pts != AV_NOPTS_VALUE)
377 pkt->pts = FFMAX(pkt->pts, pkt->dts);
378 }
379 ost->last_mux_dts = pkt->dts;
380
baeb59d8 381 ost->data_size += pkt->size;
47543450 382 ost->packets_written++;
baeb59d8 383
61a09968 384 pkt->stream_index = ost->index;
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385 ret = av_interleaved_write_frame(s, pkt);
386 if (ret < 0) {
6291d7e4 387 print_error("av_interleaved_write_frame()", ret);
636ced8e 388 exit_program(1);
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389 }
390}
391
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392static int check_recording_time(OutputStream *ost)
393{
2e215267 394 OutputFile *of = output_files[ost->file_index];
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395
396 if (of->recording_time != INT64_MAX &&
397 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
398 AV_TIME_BASE_Q) >= 0) {
57d24225 399 ost->finished = 1;
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400 return 0;
401 }
402 return 1;
403}
404
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405static void do_audio_out(AVFormatContext *s, OutputStream *ost,
406 AVFrame *frame)
ee458cb1
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407{
408 AVCodecContext *enc = ost->st->codec;
ee458cb1 409 AVPacket pkt;
369cb092 410 int got_packet = 0;
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411
412 av_init_packet(&pkt);
413 pkt.data = NULL;
414 pkt.size = 0;
415
369cb092 416 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 417 frame->pts = ost->sync_opts;
369cb092 418 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 419
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420 ost->samples_encoded += frame->nb_samples;
421 ost->frames_encoded++;
422
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423 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
424 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
636ced8e 425 exit_program(1);
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426 }
427
428 if (got_packet) {
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429 if (pkt.pts != AV_NOPTS_VALUE)
430 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
a75bc764
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431 if (pkt.dts != AV_NOPTS_VALUE)
432 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
ee458cb1
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433 if (pkt.duration > 0)
434 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
435
436 write_frame(s, &pkt, ost);
ee458cb1 437 }
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438}
439
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440static void do_subtitle_out(AVFormatContext *s,
441 OutputStream *ost,
442 InputStream *ist,
443 AVSubtitle *sub,
444 int64_t pts)
445{
446 static uint8_t *subtitle_out = NULL;
447 int subtitle_out_max_size = 1024 * 1024;
448 int subtitle_out_size, nb, i;
449 AVCodecContext *enc;
450 AVPacket pkt;
451
452 if (pts == AV_NOPTS_VALUE) {
e3245b26 453 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 454 if (exit_on_error)
636ced8e 455 exit_program(1);
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456 return;
457 }
458
459 enc = ost->st->codec;
460
461 if (!subtitle_out) {
462 subtitle_out = av_malloc(subtitle_out_max_size);
463 }
464
465 /* Note: DVB subtitle need one packet to draw them and one other
466 packet to clear them */
467 /* XXX: signal it in the codec context ? */
36ef5369 468 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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469 nb = 2;
470 else
471 nb = 1;
472
7636c8c6 473 for (i = 0; i < nb; i++) {
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474 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
475 if (!check_recording_time(ost))
476 return;
477
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478 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
479 // start_display_time is required to be 0
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480 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
481 sub->end_display_time -= sub->start_display_time;
6291d7e4 482 sub->start_display_time = 0;
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483
484 ost->frames_encoded++;
485
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486 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
487 subtitle_out_max_size, sub);
488 if (subtitle_out_size < 0) {
e3245b26 489 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
636ced8e 490 exit_program(1);
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491 }
492
493 av_init_packet(&pkt);
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494 pkt.data = subtitle_out;
495 pkt.size = subtitle_out_size;
7636c8c6 496 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 497 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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498 /* XXX: the pts correction is handled here. Maybe handling
499 it in the codec would be better */
500 if (i == 0)
501 pkt.pts += 90 * sub->start_display_time;
502 else
503 pkt.pts += 90 * sub->end_display_time;
504 }
f15f02c2 505 write_frame(s, &pkt, ost);
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506 }
507}
508
87ef060c
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509static void do_video_out(AVFormatContext *s,
510 OutputStream *ost,
87ef060c 511 AVFrame *in_picture,
fb722a90 512 int *frame_size)
87ef060c 513{
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514 int ret, format_video_sync;
515 AVPacket pkt;
516 AVCodecContext *enc = ost->st->codec;
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517
518 *frame_size = 0;
519
553735f5 520 format_video_sync = video_sync_method;
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521 if (format_video_sync == VSYNC_AUTO)
522 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
523 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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524 if (format_video_sync != VSYNC_PASSTHROUGH &&
525 ost->frame_number &&
526 in_picture->pts != AV_NOPTS_VALUE &&
527 in_picture->pts < ost->sync_opts) {
d43040e2 528 nb_frames_drop++;
aa499568
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529 av_log(NULL, AV_LOG_WARNING,
530 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
531 ost->frame_number, ost->st->index, in_picture->pts);
87ef060c 532 return;
d43040e2 533 }
87ef060c 534
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535 if (in_picture->pts == AV_NOPTS_VALUE)
536 in_picture->pts = ost->sync_opts;
537 ost->sync_opts = in_picture->pts;
538
539
1270e12e 540 if (!ost->frame_number)
74b961db 541 ost->first_pts = in_picture->pts;
1270e12e 542
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543 av_init_packet(&pkt);
544 pkt.data = NULL;
545 pkt.size = 0;
6291d7e4 546
a83c0da5 547 if (ost->frame_number >= ost->max_frames)
39885a4b 548 return;
1270e12e 549
39885a4b 550 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 551 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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552 /* raw pictures are written as AVPicture structure to
553 avoid any copies. We support temporarily the older
554 method. */
555 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
556 enc->coded_frame->top_field_first = in_picture->top_field_first;
557 pkt.data = (uint8_t *)in_picture;
558 pkt.size = sizeof(AVPicture);
559 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
560 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 561
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562 write_frame(s, &pkt, ost);
563 } else {
564 int got_packet;
6291d7e4 565
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566 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
567 ost->top_field_first >= 0)
568 in_picture->top_field_first = !!ost->top_field_first;
569
570 in_picture->quality = ost->st->codec->global_quality;
39885a4b 571 if (!enc->me_threshold)
9b2dc295 572 in_picture->pict_type = 0;
39885a4b 573 if (ost->forced_kf_index < ost->forced_kf_count &&
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574 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
575 in_picture->pict_type = AV_PICTURE_TYPE_I;
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576 ost->forced_kf_index++;
577 }
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578
579 ost->frames_encoded++;
580
9b2dc295 581 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
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582 if (ret < 0) {
583 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
636ced8e 584 exit_program(1);
39885a4b 585 }
6291d7e4 586
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587 if (got_packet) {
588 if (pkt.pts != AV_NOPTS_VALUE)
589 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
590 if (pkt.dts != AV_NOPTS_VALUE)
591 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
6291d7e4 592
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593 write_frame(s, &pkt, ost);
594 *frame_size = pkt.size;
324fbadf 595
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596 /* if two pass, output log */
597 if (ost->logfile && enc->stats_out) {
598 fprintf(ost->logfile, "%s", enc->stats_out);
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599 }
600 }
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601 }
602 ost->sync_opts++;
603 /*
604 * For video, number of frames in == number of packets out.
605 * But there may be reordering, so we can't throw away frames on encoder
606 * flush, we need to limit them here, before they go into encoder.
607 */
608 ost->frame_number++;
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609}
610
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611static double psnr(double d)
612{
613 return -10.0 * log(d) / log(10.0);
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614}
615
70478746 616static void do_video_stats(OutputStream *ost, int frame_size)
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617{
618 AVCodecContext *enc;
619 int frame_number;
620 double ti1, bitrate, avg_bitrate;
621
622 /* this is executed just the first time do_video_stats is called */
623 if (!vstats_file) {
624 vstats_file = fopen(vstats_filename, "w");
625 if (!vstats_file) {
626 perror("fopen");
636ced8e 627 exit_program(1);
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628 }
629 }
630
631 enc = ost->st->codec;
632 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
633 frame_number = ost->frame_number;
7636c8c6 634 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
6291d7e4 635 if (enc->flags&CODEC_FLAG_PSNR)
7636c8c6 636 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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637
638 fprintf(vstats_file,"f_size= %6d ", frame_size);
639 /* compute pts value */
640 ti1 = ost->sync_opts * av_q2d(enc->time_base);
641 if (ti1 < 0.01)
642 ti1 = 0.01;
643
7636c8c6 644 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
baeb59d8 645 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
6291d7e4 646 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
baeb59d8 647 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
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648 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
649 }
650}
651
c1ef30a6 652/*
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653 * Read one frame for lavfi output for ost and encode it.
654 */
655static int poll_filter(OutputStream *ost)
560f7774 656{
a4f50110 657 OutputFile *of = output_files[ost->file_index];
560f7774 658 AVFrame *filtered_frame = NULL;
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659 int frame_size, ret;
660
5b9c3b45 661 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
a4f50110 662 return AVERROR(ENOMEM);
674fa491 663 }
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664 filtered_frame = ost->filtered_frame;
665
666 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
667 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
9b2dc295 668 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
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669 ost->st->codec->frame_size);
670 else
9b2dc295 671 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
369cb092 672
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673 if (ret < 0)
674 return ret;
560f7774 675
9b2dc295 676 if (filtered_frame->pts != AV_NOPTS_VALUE) {
56ee3f9d 677 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
9b2dc295 678 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
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679 ost->filter->filter->inputs[0]->time_base,
680 ost->st->codec->time_base) -
56ee3f9d 681 av_rescale_q(start_time,
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682 AV_TIME_BASE_Q,
683 ost->st->codec->time_base);
560f7774 684 }
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685
686 switch (ost->filter->filter->inputs[0]->type) {
687 case AVMEDIA_TYPE_VIDEO:
688 if (!ost->frame_aspect_ratio)
9b2dc295 689 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
a4f50110 690
fb722a90 691 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
a4f50110 692 if (vstats_filename && frame_size)
70478746 693 do_video_stats(ost, frame_size);
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694 break;
695 case AVMEDIA_TYPE_AUDIO:
696 do_audio_out(of->ctx, ost, filtered_frame);
697 break;
698 default:
699 // TODO support subtitle filters
700 av_assert0(0);
701 }
702
9b2dc295 703 av_frame_unref(filtered_frame);
a4f50110 704
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705 return 0;
706}
707
c1ef30a6 708/*
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709 * Read as many frames from possible from lavfi and encode them.
710 *
711 * Always read from the active stream with the lowest timestamp. If no frames
712 * are available for it then return EAGAIN and wait for more input. This way we
713 * can use lavfi sources that generate unlimited amount of frames without memory
714 * usage exploding.
715 */
716static int poll_filters(void)
717{
3c0df905 718 int i, j, ret = 0;
a4f50110
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719
720 while (ret >= 0 && !received_sigterm) {
721 OutputStream *ost = NULL;
722 int64_t min_pts = INT64_MAX;
723
724 /* choose output stream with the lowest timestamp */
725 for (i = 0; i < nb_output_streams; i++) {
726 int64_t pts = output_streams[i]->sync_opts;
727
57d24225 728 if (!output_streams[i]->filter || output_streams[i]->finished)
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729 continue;
730
731 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
732 AV_TIME_BASE_Q);
733 if (pts < min_pts) {
734 min_pts = pts;
735 ost = output_streams[i];
736 }
737 }
738
739 if (!ost)
740 break;
741
742 ret = poll_filter(ost);
743
744 if (ret == AVERROR_EOF) {
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745 OutputFile *of = output_files[ost->file_index];
746
57d24225 747 ost->finished = 1;
a4f50110 748
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749 if (of->shortest) {
750 for (j = 0; j < of->ctx->nb_streams; j++)
751 output_streams[of->ost_index + j]->finished = 1;
752 }
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753
754 ret = 0;
755 } else if (ret == AVERROR(EAGAIN))
756 return 0;
757 }
758
759 return ret;
760}
761
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762static void print_final_stats(int64_t total_size)
763{
764 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
765 uint64_t data_size = 0;
766 float percent = -1.0;
47543450 767 int i, j;
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768
769 for (i = 0; i < nb_output_streams; i++) {
770 OutputStream *ost = output_streams[i];
771 switch (ost->st->codec->codec_type) {
772 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
773 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
774 default: other_size += ost->data_size; break;
775 }
776 extra_size += ost->st->codec->extradata_size;
777 data_size += ost->data_size;
778 }
779
780 if (data_size && total_size >= data_size)
781 percent = 100.0 * (total_size - data_size) / data_size;
782
783 av_log(NULL, AV_LOG_INFO, "\n");
784 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
785 video_size / 1024.0,
786 audio_size / 1024.0,
787 other_size / 1024.0,
788 extra_size / 1024.0);
789 if (percent >= 0.0)
790 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
791 else
792 av_log(NULL, AV_LOG_INFO, "unknown");
793 av_log(NULL, AV_LOG_INFO, "\n");
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794
795 /* print verbose per-stream stats */
796 for (i = 0; i < nb_input_files; i++) {
797 InputFile *f = input_files[i];
798 uint64_t total_packets = 0, total_size = 0;
799
800 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
801 i, f->ctx->filename);
802
803 for (j = 0; j < f->nb_streams; j++) {
804 InputStream *ist = input_streams[f->ist_index + j];
41776ba9 805 enum AVMediaType type = ist->dec_ctx->codec_type;
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806
807 total_size += ist->data_size;
808 total_packets += ist->nb_packets;
809
810 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
811 i, j, media_type_string(type));
812 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
813 ist->nb_packets, ist->data_size);
814
815 if (ist->decoding_needed) {
816 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
817 ist->frames_decoded);
818 if (type == AVMEDIA_TYPE_AUDIO)
819 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
820 av_log(NULL, AV_LOG_VERBOSE, "; ");
821 }
822
823 av_log(NULL, AV_LOG_VERBOSE, "\n");
824 }
825
826 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
827 total_packets, total_size);
828 }
829
830 for (i = 0; i < nb_output_files; i++) {
831 OutputFile *of = output_files[i];
832 uint64_t total_packets = 0, total_size = 0;
833
834 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
835 i, of->ctx->filename);
836
837 for (j = 0; j < of->ctx->nb_streams; j++) {
838 OutputStream *ost = output_streams[of->ost_index + j];
839 enum AVMediaType type = ost->st->codec->codec_type;
840
841 total_size += ost->data_size;
842 total_packets += ost->packets_written;
843
844 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
845 i, j, media_type_string(type));
846 if (ost->encoding_needed) {
847 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
848 ost->frames_encoded);
849 if (type == AVMEDIA_TYPE_AUDIO)
850 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
851 av_log(NULL, AV_LOG_VERBOSE, "; ");
852 }
853
854 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
855 ost->packets_written, ost->data_size);
856
857 av_log(NULL, AV_LOG_VERBOSE, "\n");
858 }
859
860 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
861 total_packets, total_size);
862 }
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863}
864
ea9367e9 865static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
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866{
867 char buf[1024];
868 OutputStream *ost;
869 AVFormatContext *oc;
870 int64_t total_size;
871 AVCodecContext *enc;
872 int frame_number, vid, i;
873 double bitrate, ti1, pts;
874 static int64_t last_time = -1;
875 static int qp_histogram[52];
876
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877 if (!print_stats && !is_last_report)
878 return;
879
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880 if (!is_last_report) {
881 int64_t cur_time;
882 /* display the report every 0.5 seconds */
883 cur_time = av_gettime();
884 if (last_time == -1) {
885 last_time = cur_time;
886 return;
887 }
888 if ((cur_time - last_time) < 500000)
889 return;
890 last_time = cur_time;
891 }
892
893
2e215267 894 oc = output_files[0]->ctx;
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895
896 total_size = avio_size(oc->pb);
1b891d17 897 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
7636c8c6 898 total_size = avio_tell(oc->pb);
1b891d17
JG
899 if (total_size < 0) {
900 char errbuf[128];
901 av_strerror(total_size, errbuf, sizeof(errbuf));
902 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
903 "avio_tell() failed: %s\n", errbuf);
904 total_size = 0;
905 }
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906
907 buf[0] = '\0';
908 ti1 = 1e10;
909 vid = 0;
ea9367e9 910 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 911 float q = -1;
2e215267 912 ost = output_streams[i];
6291d7e4 913 enc = ost->st->codec;
3d813e4c 914 if (!ost->stream_copy && enc->coded_frame)
7636c8c6 915 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
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916 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
917 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
918 }
919 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
7636c8c6 920 float t = (av_gettime() - timer_start) / 1000000.0;
6291d7e4
AK
921
922 frame_number = ost->frame_number;
923 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
924 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
925 if (is_last_report)
6291d7e4 926 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 927 if (qp_hist) {
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AK
928 int j;
929 int qp = lrintf(q);
7636c8c6 930 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 931 qp_histogram[qp]++;
7636c8c6 932 for (j = 0; j < 32; j++)
d752509b 933 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 934 }
7636c8c6 935 if (enc->flags&CODEC_FLAG_PSNR) {
6291d7e4 936 int j;
7636c8c6
AD
937 double error, error_sum = 0;
938 double scale, scale_sum = 0;
939 char type[3] = { 'Y','U','V' };
6291d7e4 940 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
941 for (j = 0; j < 3; j++) {
942 if (is_last_report) {
943 error = enc->error[j];
944 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
945 } else {
946 error = enc->coded_frame->error[j];
947 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 948 }
7636c8c6
AD
949 if (j)
950 scale /= 4;
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951 error_sum += error;
952 scale_sum += scale;
7636c8c6 953 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 954 }
7636c8c6 955 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
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956 }
957 vid = 1;
958 }
959 /* compute min output value */
dc40d886 960 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
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961 if ((pts < ti1) && (pts > 0))
962 ti1 = pts;
963 }
964 if (ti1 < 0.01)
965 ti1 = 0.01;
966
e3245b26 967 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 968
e3245b26 969 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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970 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
971 (double)total_size / 1024, ti1, bitrate);
972
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973 if (nb_frames_drop)
974 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
975 nb_frames_drop);
6291d7e4 976
f5646a32 977 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 978
e3245b26 979 fflush(stderr);
6291d7e4 980
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981 if (is_last_report)
982 print_final_stats(total_size);
baeb59d8 983
6291d7e4
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984}
985
ea9367e9 986static void flush_encoders(void)
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987{
988 int i, ret;
989
ea9367e9 990 for (i = 0; i < nb_output_streams; i++) {
2e215267 991 OutputStream *ost = output_streams[i];
6f1c66d5 992 AVCodecContext *enc = ost->st->codec;
2e215267 993 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 994 int stop_encoding = 0;
6f1c66d5 995
b62b5cb6 996 if (!ost->encoding_needed)
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AK
997 continue;
998
7636c8c6 999 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 1000 continue;
36ef5369 1001 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
6f1c66d5
AK
1002 continue;
1003
7636c8c6 1004 for (;;) {
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1005 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1006 const char *desc;
6f1c66d5
AK
1007
1008 switch (ost->st->codec->codec_type) {
1009 case AVMEDIA_TYPE_AUDIO:
369cb092
AK
1010 encode = avcodec_encode_audio2;
1011 desc = "Audio";
6f1c66d5
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1012 break;
1013 case AVMEDIA_TYPE_VIDEO:
369cb092
AK
1014 encode = avcodec_encode_video2;
1015 desc = "Video";
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1016 break;
1017 default:
1018 stop_encoding = 1;
1019 }
1020
1021 if (encode) {
1022 AVPacket pkt;
1023 int got_packet;
1024 av_init_packet(&pkt);
1025 pkt.data = NULL;
1026 pkt.size = 0;
1027
1028 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 1029 if (ret < 0) {
369cb092 1030 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
636ced8e 1031 exit_program(1);
6f1c66d5 1032 }
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AK
1033 if (ost->logfile && enc->stats_out) {
1034 fprintf(ost->logfile, "%s", enc->stats_out);
1035 }
8e37038a 1036 if (!got_packet) {
ee458cb1
JR
1037 stop_encoding = 1;
1038 break;
1039 }
8e37038a
AK
1040 if (pkt.pts != AV_NOPTS_VALUE)
1041 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1042 if (pkt.dts != AV_NOPTS_VALUE)
1043 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
3ba41640
JR
1044 if (pkt.duration > 0)
1045 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
ee458cb1 1046 write_frame(os, &pkt, ost);
4a4ce2e7 1047 }
369cb092 1048
ee458cb1 1049 if (stop_encoding)
6f1c66d5 1050 break;
4a4ce2e7
AK
1051 }
1052 }
1053}
1054
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1055/*
1056 * Check whether a packet from ist should be written into ost at this time
1057 */
1058static int check_output_constraints(InputStream *ist, OutputStream *ost)
1059{
2e215267
AK
1060 OutputFile *of = output_files[ost->file_index];
1061 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
7204ec1a
AK
1062
1063 if (ost->source_index != ist_index)
1064 return 0;
1065
56ee3f9d 1066 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
7204ec1a
AK
1067 return 0;
1068
7204ec1a
AK
1069 return 1;
1070}
1071
1072static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1073{
2e215267 1074 OutputFile *of = output_files[ost->file_index];
488a0fa6 1075 InputFile *f = input_files [ist->file_index];
56ee3f9d
AK
1076 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1077 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1078 AVPacket opkt;
1079
1080 av_init_packet(&opkt);
1081
1082 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1083 !ost->copy_initial_nonkeyframes)
1084 return;
1085
1270e12e 1086 if (of->recording_time != INT64_MAX &&
56ee3f9d 1087 ist->last_dts >= of->recording_time + start_time) {
57d24225 1088 ost->finished = 1;
1270e12e
AK
1089 return;
1090 }
1091
488a0fa6
AK
1092 if (f->recording_time != INT64_MAX) {
1093 start_time = f->ctx->start_time;
1094 if (f->start_time != AV_NOPTS_VALUE)
1095 start_time += f->start_time;
1096 if (ist->last_dts >= f->recording_time + start_time) {
1097 ost->finished = 1;
1098 return;
1099 }
1100 }
1101
7204ec1a 1102 /* force the input stream PTS */
baeb59d8 1103 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
7204ec1a 1104 ost->sync_opts++;
7204ec1a 1105
7204ec1a
AK
1106 if (pkt->pts != AV_NOPTS_VALUE)
1107 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1108 else
1109 opkt.pts = AV_NOPTS_VALUE;
1110
1111 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1112 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1113 else
1114 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1115 opkt.dts -= ost_tb_start_time;
1116
1117 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1118 opkt.flags = pkt->flags;
1119
7636c8c6 1120 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
36ef5369
AK
1121 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1122 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1123 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1124 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
7204ec1a 1125 ) {
c872d310
AK
1126 if (av_parser_change(ost->parser, ost->st->codec,
1127 &opkt.data, &opkt.size,
1128 pkt->data, pkt->size,
1129 pkt->flags & AV_PKT_FLAG_KEY)) {
9b2dc295
AK
1130 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1131 if (!opkt.buf)
636ced8e 1132 exit_program(1);
9b2dc295 1133 }
7204ec1a
AK
1134 } else {
1135 opkt.data = pkt->data;
1136 opkt.size = pkt->size;
1137 }
1138
f15f02c2 1139 write_frame(of->ctx, &opkt, ost);
7204ec1a
AK
1140}
1141
f5e66827 1142int guess_input_channel_layout(InputStream *ist)
369cb092 1143{
41776ba9 1144 AVCodecContext *dec = ist->dec_ctx;
369cb092
AK
1145
1146 if (!dec->channel_layout) {
1147 char layout_name[256];
1148
1149 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1150 if (!dec->channel_layout)
1151 return 0;
1152 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1153 dec->channels, dec->channel_layout);
1154 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1155 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1156 }
1157 return 1;
1158}
1159
0629f612 1160static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1161{
9b2dc295 1162 AVFrame *decoded_frame, *f;
41776ba9 1163 AVCodecContext *avctx = ist->dec_ctx;
9b2dc295 1164 int i, ret, err = 0, resample_changed;
ded28ba3 1165
5b9c3b45 1166 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
d1241ff3 1167 return AVERROR(ENOMEM);
9b2dc295
AK
1168 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1169 return AVERROR(ENOMEM);
9179f27c 1170 decoded_frame = ist->decoded_frame;
ded28ba3 1171
d1241ff3 1172 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
f154ef1a
AK
1173 if (!*got_output || ret < 0) {
1174 if (!pkt->size) {
369cb092 1175 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1176 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1177 }
af8ad892 1178 return ret;
ded28ba3
AK
1179 }
1180
47543450
AK
1181 ist->samples_decoded += decoded_frame->nb_samples;
1182 ist->frames_decoded++;
1183
d1241ff3
JR
1184 /* if the decoder provides a pts, use it instead of the last packet pts.
1185 the decoder could be delaying output by a packet or more. */
1186 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1187 ist->next_dts = decoded_frame->pts;
1ae8198b 1188 else if (pkt->pts != AV_NOPTS_VALUE)
369cb092 1189 decoded_frame->pts = pkt->pts;
1ae8198b 1190 pkt->pts = AV_NOPTS_VALUE;
ded28ba3 1191
369cb092
AK
1192 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1193 ist->resample_channels != avctx->channels ||
1194 ist->resample_channel_layout != decoded_frame->channel_layout ||
1195 ist->resample_sample_rate != decoded_frame->sample_rate;
1196 if (resample_changed) {
1197 char layout1[64], layout2[64];
ded28ba3 1198
369cb092
AK
1199 if (!guess_input_channel_layout(ist)) {
1200 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1201 "layout for Input Stream #%d.%d\n", ist->file_index,
1202 ist->st->index);
636ced8e 1203 exit_program(1);
369cb092
AK
1204 }
1205 decoded_frame->channel_layout = avctx->channel_layout;
1206
1207 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1208 ist->resample_channel_layout);
1209 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1210 decoded_frame->channel_layout);
1211
1212 av_log(NULL, AV_LOG_INFO,
1213 "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",
1214 ist->file_index, ist->st->index,
1215 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1216 ist->resample_channels, layout1,
1217 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1218 avctx->channels, layout2);
1219
1220 ist->resample_sample_fmt = decoded_frame->format;
1221 ist->resample_sample_rate = decoded_frame->sample_rate;
1222 ist->resample_channel_layout = decoded_frame->channel_layout;
1223 ist->resample_channels = avctx->channels;
1224
1225 for (i = 0; i < nb_filtergraphs; i++)
1226 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1227 configure_filtergraph(filtergraphs[i]) < 0) {
1228 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1229 exit_program(1);
369cb092 1230 }
ded28ba3 1231 }
110d2af2 1232
715129cd
MS
1233 if (decoded_frame->pts != AV_NOPTS_VALUE)
1234 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1235 ist->st->time_base,
41776ba9 1236 (AVRational){1, avctx->sample_rate});
9b2dc295
AK
1237 for (i = 0; i < ist->nb_filters; i++) {
1238 if (i < ist->nb_filters - 1) {
1239 f = ist->filter_frame;
1240 err = av_frame_ref(f, decoded_frame);
1241 if (err < 0)
1242 break;
1243 } else
1244 f = decoded_frame;
369cb092 1245
9b2dc295
AK
1246 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1247 if (err < 0)
1248 break;
1249 }
1250
1251 av_frame_unref(ist->filter_frame);
1252 av_frame_unref(decoded_frame);
1253 return err < 0 ? err : ret;
ded28ba3
AK
1254}
1255
0629f612 1256static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1257{
9b2dc295 1258 AVFrame *decoded_frame, *f;
9b2dc295 1259 int i, ret = 0, err = 0, resample_changed;
45d4b66f 1260
9b2dc295
AK
1261 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1262 return AVERROR(ENOMEM);
1263 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
45d4b66f 1264 return AVERROR(ENOMEM);
9179f27c 1265 decoded_frame = ist->decoded_frame;
45d4b66f 1266
41776ba9 1267 ret = avcodec_decode_video2(ist->dec_ctx,
45d4b66f 1268 decoded_frame, got_output, pkt);
f154ef1a
AK
1269 if (!*got_output || ret < 0) {
1270 if (!pkt->size) {
89605e4a 1271 for (i = 0; i < ist->nb_filters; i++)
9b2dc295 1272 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
f154ef1a 1273 }
af8ad892 1274 return ret;
45d4b66f 1275 }
f154ef1a 1276
47543450
AK
1277 ist->frames_decoded++;
1278
07fd0a22 1279 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
41776ba9 1280 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
07fd0a22
AK
1281 if (err < 0)
1282 goto fail;
1283 }
1284 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1285
b34856a1
AK
1286 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1287 decoded_frame->pkt_dts);
45d4b66f 1288 pkt->size = 0;
45d4b66f 1289
695ec04e
AK
1290 if (ist->st->sample_aspect_ratio.num)
1291 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1292
e77c8662
AK
1293 resample_changed = ist->resample_width != decoded_frame->width ||
1294 ist->resample_height != decoded_frame->height ||
1295 ist->resample_pix_fmt != decoded_frame->format;
1296 if (resample_changed) {
1297 av_log(NULL, AV_LOG_INFO,
1298 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1299 ist->file_index, ist->st->index,
1300 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1301 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1302
2f34021d
JG
1303 ret = poll_filters();
1304 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1305 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1306
e77c8662
AK
1307 ist->resample_width = decoded_frame->width;
1308 ist->resample_height = decoded_frame->height;
1309 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1310
3b266da3
AK
1311 for (i = 0; i < nb_filtergraphs; i++)
1312 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1313 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1314 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1315 exit_program(1);
3b266da3
AK
1316 }
1317 }
ac646076 1318
3b266da3 1319 for (i = 0; i < ist->nb_filters; i++) {
9b2dc295
AK
1320 if (i < ist->nb_filters - 1) {
1321 f = ist->filter_frame;
1322 err = av_frame_ref(f, decoded_frame);
1323 if (err < 0)
1324 break;
04a14d4d 1325 } else
9b2dc295
AK
1326 f = decoded_frame;
1327
1328 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1329 if (err < 0)
1330 break;
45d4b66f
AK
1331 }
1332
07fd0a22 1333fail:
9b2dc295
AK
1334 av_frame_unref(ist->filter_frame);
1335 av_frame_unref(decoded_frame);
9b2dc295 1336 return err < 0 ? err : ret;
45d4b66f
AK
1337}
1338
9595234c
AK
1339static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1340{
1341 AVSubtitle subtitle;
41776ba9 1342 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
9595234c
AK
1343 &subtitle, got_output, pkt);
1344 if (ret < 0)
1345 return ret;
1346 if (!*got_output)
af8ad892 1347 return ret;
9595234c 1348
47543450
AK
1349 ist->frames_decoded++;
1350
9595234c 1351 for (i = 0; i < nb_output_streams; i++) {
2e215267 1352 OutputStream *ost = output_streams[i];
9595234c
AK
1353
1354 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1355 continue;
1356
2e215267 1357 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1358 }
1359
1360 avsubtitle_free(&subtitle);
af8ad892 1361 return ret;
9595234c
AK
1362}
1363
6291d7e4 1364/* pkt = NULL means EOF (needed to flush decoder buffers) */
ea9367e9 1365static int output_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1366{
ffa0674e 1367 int i;
6291d7e4 1368 int got_output;
6291d7e4 1369 AVPacket avpkt;
6291d7e4 1370
3101bb66 1371 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1372 ist->next_dts = ist->last_dts;
6291d7e4
AK
1373
1374 if (pkt == NULL) {
1375 /* EOF handling */
1376 av_init_packet(&avpkt);
1377 avpkt.data = NULL;
1378 avpkt.size = 0;
1379 goto handle_eof;
1380 } else {
1381 avpkt = *pkt;
1382 }
1383
7636c8c6 1384 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1385 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1386
7636c8c6 1387 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1388 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1389 int ret = 0;
6291d7e4 1390 handle_eof:
6291d7e4 1391
23576b3f 1392 ist->last_dts = ist->next_dts;
8b0268a8 1393
d1780e01
AK
1394 if (avpkt.size && avpkt.size != pkt->size &&
1395 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
e3245b26
AK
1396 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1397 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1398 ist->showed_multi_packet_warning = 1;
1399 }
6291d7e4 1400
41776ba9 1401 switch (ist->dec_ctx->codec_type) {
82963f8f 1402 case AVMEDIA_TYPE_AUDIO:
0629f612 1403 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1404 break;
1405 case AVMEDIA_TYPE_VIDEO:
0629f612 1406 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1407 if (avpkt.duration)
1408 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1409 else if (ist->st->avg_frame_rate.num)
82494835 1410 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1411 AV_TIME_BASE_Q);
41776ba9 1412 else if (ist->dec_ctx->time_base.num != 0) {
b34856a1 1413 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
41776ba9
AK
1414 ist->dec_ctx->ticks_per_frame;
1415 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->time_base, AV_TIME_BASE_Q);
b34856a1 1416 }
82963f8f
AK
1417 break;
1418 case AVMEDIA_TYPE_SUBTITLE:
1419 ret = transcode_subtitles(ist, &avpkt, &got_output);
1420 break;
78162b4e
AK
1421 default:
1422 return -1;
1423 }
6291d7e4 1424
d3c1d37a
AK
1425 if (ret < 0)
1426 return ret;
aa38cff2
JG
1427 // touch data and size only if not EOF
1428 if (pkt) {
1429 avpkt.data += ret;
1430 avpkt.size -= ret;
1431 }
82963f8f 1432 if (!got_output) {
af8ad892 1433 continue;
82963f8f 1434 }
6291d7e4 1435 }
6291d7e4 1436
7204ec1a 1437 /* handle stream copy */
2a651b71 1438 if (!ist->decoding_needed) {
23576b3f 1439 ist->last_dts = ist->next_dts;
41776ba9 1440 switch (ist->dec_ctx->codec_type) {
2a651b71 1441 case AVMEDIA_TYPE_AUDIO:
41776ba9
AK
1442 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1443 ist->dec_ctx->sample_rate;
2a651b71
AK
1444 break;
1445 case AVMEDIA_TYPE_VIDEO:
41776ba9
AK
1446 if (ist->dec_ctx->time_base.num != 0) {
1447 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
3101bb66 1448 ist->next_dts += ((int64_t)AV_TIME_BASE *
41776ba9
AK
1449 ist->dec_ctx->time_base.num * ticks) /
1450 ist->dec_ctx->time_base.den;
2a651b71
AK
1451 }
1452 break;
1453 }
1454 }
ea9367e9 1455 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1456 OutputStream *ost = output_streams[i];
7204ec1a
AK
1457
1458 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1459 continue;
1460
1461 do_streamcopy(ist, ost, pkt);
1462 }
1463
6291d7e4
AK
1464 return 0;
1465}
1466
ea9367e9 1467static void print_sdp(void)
6291d7e4 1468{
a23abaf3 1469 char sdp[16384];
af70aa45 1470 int i;
ea9367e9 1471 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1472
1473 if (!avc)
636ced8e 1474 exit_program(1);
ea9367e9 1475 for (i = 0; i < nb_output_files; i++)
2e215267 1476 avc[i] = output_files[i]->ctx;
6291d7e4 1477
ea9367e9 1478 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1479 printf("SDP:\n%s\n", sdp);
1480 fflush(stdout);
af70aa45 1481 av_freep(&avc);
6291d7e4
AK
1482}
1483
07fd0a22
AK
1484static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1485{
1486 int i;
1487 for (i = 0; hwaccels[i].name; i++)
1488 if (hwaccels[i].pix_fmt == pix_fmt)
1489 return &hwaccels[i];
1490 return NULL;
1491}
1492
1493static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1494{
1495 InputStream *ist = s->opaque;
1496 const enum AVPixelFormat *p;
1497 int ret;
1498
1499 for (p = pix_fmts; *p != -1; p++) {
1500 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1501 const HWAccel *hwaccel;
1502
1503 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1504 break;
1505
1506 hwaccel = get_hwaccel(*p);
1507 if (!hwaccel ||
1508 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1509 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1510 continue;
1511
1512 ret = hwaccel->init(s);
1513 if (ret < 0) {
1514 if (ist->hwaccel_id == hwaccel->id) {
1515 av_log(NULL, AV_LOG_FATAL,
1516 "%s hwaccel requested for input stream #%d:%d, "
1517 "but cannot be initialized.\n", hwaccel->name,
1518 ist->file_index, ist->st->index);
1519 exit_program(1);
1520 }
1521 continue;
1522 }
1523 ist->active_hwaccel_id = hwaccel->id;
1524 ist->hwaccel_pix_fmt = *p;
1525 break;
1526 }
1527
1528 return *p;
1529}
1530
1531static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1532{
1533 InputStream *ist = s->opaque;
1534
1535 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1536 return ist->hwaccel_get_buffer(s, frame, flags);
1537
1538 return avcodec_default_get_buffer2(s, frame, flags);
1539}
1540
ea9367e9 1541static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1542{
c854102d 1543 int i, ret;
2e215267 1544 InputStream *ist = input_streams[ist_index];
630902a1
AK
1545 if (ist->decoding_needed) {
1546 AVCodec *codec = ist->dec;
630902a1 1547 if (!codec) {
9a414d89 1548 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
41776ba9 1549 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
630902a1
AK
1550 return AVERROR(EINVAL);
1551 }
1552
1553 /* update requested sample format for the decoder based on the
1554 corresponding encoder sample format */
1555 for (i = 0; i < nb_output_streams; i++) {
2e215267 1556 OutputStream *ost = output_streams[i];
630902a1 1557 if (ost->source_index == ist_index) {
41776ba9 1558 update_sample_fmt(ist->dec_ctx, codec, ost->st->codec);
630902a1
AK
1559 break;
1560 }
1561 }
1562
41776ba9
AK
1563 ist->dec_ctx->opaque = ist;
1564 ist->dec_ctx->get_format = get_format;
1565 ist->dec_ctx->get_buffer2 = get_buffer;
1566 ist->dec_ctx->thread_safe_callbacks = 1;
07fd0a22 1567
41776ba9 1568 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
64dca32c 1569
f3a6ad22
AK
1570 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1571 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
41776ba9 1572 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
42cc6cef 1573 char errbuf[128];
c854102d
NC
1574 if (ret == AVERROR_EXPERIMENTAL)
1575 abort_codec_experimental(codec, 0);
42cc6cef
LB
1576
1577 av_strerror(ret, errbuf, sizeof(errbuf));
1578
1579 snprintf(error, error_len,
1580 "Error while opening decoder for input stream "
1581 "#%d:%d : %s",
1582 ist->file_index, ist->st->index, errbuf);
c854102d 1583 return ret;
630902a1 1584 }
f3a6ad22 1585 assert_avoptions(ist->decoder_opts);
630902a1
AK
1586 }
1587
41776ba9 1588 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
3101bb66 1589 ist->next_dts = AV_NOPTS_VALUE;
630902a1 1590 init_pts_correction(&ist->pts_ctx);
630902a1
AK
1591
1592 return 0;
1593}
1594
3b266da3
AK
1595static InputStream *get_input_stream(OutputStream *ost)
1596{
1597 if (ost->source_index >= 0)
1598 return input_streams[ost->source_index];
1599
1600 if (ost->filter) {
1601 FilterGraph *fg = ost->filter->graph;
1602 int i;
1603
1604 for (i = 0; i < fg->nb_inputs; i++)
41776ba9 1605 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->st->codec->codec_type)
3b266da3
AK
1606 return fg->inputs[i]->ist;
1607 }
1608
1609 return NULL;
1610}
1611
19ad5673
AK
1612static void parse_forced_key_frames(char *kf, OutputStream *ost,
1613 AVCodecContext *avctx)
1614{
1615 char *p;
1616 int n = 1, i;
1617 int64_t t;
1618
1619 for (p = kf; *p; p++)
1620 if (*p == ',')
1621 n++;
1622 ost->forced_kf_count = n;
1623 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1624 if (!ost->forced_kf_pts) {
1625 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
636ced8e 1626 exit_program(1);
19ad5673 1627 }
4c679750
RD
1628
1629 p = kf;
19ad5673 1630 for (i = 0; i < n; i++) {
4c679750
RD
1631 char *next = strchr(p, ',');
1632
1633 if (next)
1634 *next++ = 0;
1635
19ad5673
AK
1636 t = parse_time_or_die("force_key_frames", p, 1);
1637 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1638
1639 p = next;
19ad5673
AK
1640 }
1641}
1642
6656370b
AK
1643static void set_encoder_id(OutputFile *of, OutputStream *ost)
1644{
1645 AVDictionaryEntry *e;
1646
1647 uint8_t *encoder_string;
1648 int encoder_string_len;
1649 int format_flags = 0;
1650
1651 e = av_dict_get(of->opts, "fflags", NULL, 0);
1652 if (e) {
1653 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1654 if (!o)
1655 return;
1656 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1657 }
1658
1659 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1660 encoder_string = av_mallocz(encoder_string_len);
1661 if (!encoder_string)
1662 exit_program(1);
1663
1664 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1665 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1666 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1667 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1668 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1669}
1670
ea9367e9 1671static int transcode_init(void)
6291d7e4 1672{
2c474ddb 1673 int ret = 0, i, j, k;
1bb77e51 1674 AVFormatContext *oc;
4288e031 1675 OutputStream *ost;
6291d7e4
AK
1676 InputStream *ist;
1677 char error[1024];
1678 int want_sdp = 1;
b0c9e8e0 1679
f4805328
AK
1680 /* init framerate emulation */
1681 for (i = 0; i < nb_input_files; i++) {
2e215267 1682 InputFile *ifile = input_files[i];
f4805328
AK
1683 if (ifile->rate_emu)
1684 for (j = 0; j < ifile->nb_streams; j++)
2e215267 1685 input_streams[j + ifile->ist_index]->start = av_gettime();
f4805328 1686 }
6291d7e4
AK
1687
1688 /* output stream init */
03f30c83 1689 for (i = 0; i < nb_output_files; i++) {
2e215267 1690 oc = output_files[i]->ctx;
1bb77e51
AK
1691 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1692 av_dump_format(oc, i, oc->filename, 1);
e3245b26 1693 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
eaf2d37a 1694 return AVERROR(EINVAL);
6291d7e4 1695 }
6291d7e4
AK
1696 }
1697
3b266da3
AK
1698 /* init complex filtergraphs */
1699 for (i = 0; i < nb_filtergraphs; i++)
1700 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1701 return ret;
1702
6291d7e4 1703 /* for each output stream, we compute the right encoding parameters */
4288e031 1704 for (i = 0; i < nb_output_streams; i++) {
65ed9e75 1705 AVCodecContext *enc_ctx;
650a5206 1706 AVCodecContext *dec_ctx = NULL;
2e215267
AK
1707 ost = output_streams[i];
1708 oc = output_files[ost->file_index]->ctx;
3b266da3 1709 ist = get_input_stream(ost);
6291d7e4 1710
4dbc6cee
AK
1711 if (ost->attachment_filename)
1712 continue;
1713
65ed9e75 1714 enc_ctx = ost->st->codec;
6291d7e4 1715
3b266da3 1716 if (ist) {
41776ba9 1717 dec_ctx = ist->dec_ctx;
3b266da3
AK
1718
1719 ost->st->disposition = ist->st->disposition;
65ed9e75
AK
1720 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1721 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
3b266da3 1722 }
6291d7e4 1723
3d813e4c 1724 if (ost->stream_copy) {
538bf767 1725 AVRational sar;
8c4022ac
AK
1726 uint64_t extra_size;
1727
1728 av_assert0(ist && !ost->filter);
1729
650a5206 1730 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1731
e6d2b737 1732 if (extra_size > INT_MAX) {
eaf2d37a 1733 return AVERROR(EINVAL);
e6d2b737 1734 }
6291d7e4
AK
1735
1736 /* if stream_copy is selected, no need to decode or encode */
65ed9e75
AK
1737 enc_ctx->codec_id = dec_ctx->codec_id;
1738 enc_ctx->codec_type = dec_ctx->codec_type;
6291d7e4 1739
65ed9e75 1740 if (!enc_ctx->codec_tag) {
03f30c83 1741 if (!oc->oformat->codec_tag ||
65ed9e75 1742 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
650a5206 1743 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
65ed9e75 1744 enc_ctx->codec_tag = dec_ctx->codec_tag;
6291d7e4
AK
1745 }
1746
65ed9e75
AK
1747 enc_ctx->bit_rate = dec_ctx->bit_rate;
1748 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1749 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1750 enc_ctx->field_order = dec_ctx->field_order;
1751 enc_ctx->extradata = av_mallocz(extra_size);
1752 if (!enc_ctx->extradata) {
eaf2d37a 1753 return AVERROR(ENOMEM);
e6d2b737 1754 }
65ed9e75
AK
1755 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1756 enc_ctx->extradata_size = dec_ctx->extradata_size;
7bb3e625 1757 if (!copy_tb) {
65ed9e75
AK
1758 enc_ctx->time_base = dec_ctx->time_base;
1759 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1760 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1761 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
03f30c83 1762 } else
65ed9e75 1763 enc_ctx->time_base = ist->st->time_base;
03f30c83 1764
65ed9e75 1765 ost->parser = av_parser_init(enc_ctx->codec_id);
c872d310 1766
65ed9e75 1767 switch (enc_ctx->codec_type) {
6291d7e4 1768 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1769 if (audio_volume != 256) {
e3245b26 1770 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
636ced8e 1771 exit_program(1);
6291d7e4 1772 }
65ed9e75
AK
1773 enc_ctx->channel_layout = dec_ctx->channel_layout;
1774 enc_ctx->sample_rate = dec_ctx->sample_rate;
1775 enc_ctx->channels = dec_ctx->channels;
1776 enc_ctx->frame_size = dec_ctx->frame_size;
1777 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1778 enc_ctx->block_align = dec_ctx->block_align;
6291d7e4
AK
1779 break;
1780 case AVMEDIA_TYPE_VIDEO:
65ed9e75
AK
1781 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1782 enc_ctx->width = dec_ctx->width;
1783 enc_ctx->height = dec_ctx->height;
1784 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
538bf767 1785 if (ost->frame_aspect_ratio)
65ed9e75 1786 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
538bf767
AK
1787 else if (ist->st->sample_aspect_ratio.num)
1788 sar = ist->st->sample_aspect_ratio;
1789 else
650a5206 1790 sar = dec_ctx->sample_aspect_ratio;
65ed9e75 1791 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
6291d7e4
AK
1792 break;
1793 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75
AK
1794 enc_ctx->width = dec_ctx->width;
1795 enc_ctx->height = dec_ctx->height;
6291d7e4
AK
1796 break;
1797 case AVMEDIA_TYPE_DATA:
3ccd1580 1798 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1799 break;
1800 default:
1801 abort();
1802 }
1803 } else {
2994913d
AK
1804 if (!ost->enc) {
1805 /* should only happen when a default codec is not present. */
1806 snprintf(error, sizeof(error), "Automatic encoder selection "
1807 "failed for output stream #%d:%d. Default encoder for "
1808 "format %s is probably disabled. Please choose an "
1809 "encoder manually.\n", ost->file_index, ost->index,
1810 oc->oformat->name);
1811 ret = AVERROR(EINVAL);
1812 goto dump_format;
1813 }
03f30c83 1814
3b266da3
AK
1815 if (ist)
1816 ist->decoding_needed = 1;
11fdb7e1 1817 ost->encoding_needed = 1;
03f30c83 1818
6656370b
AK
1819 set_encoder_id(output_files[ost->file_index], ost);
1820
74b961db
AK
1821 /*
1822 * We want CFR output if and only if one of those is true:
1823 * 1) user specified output framerate with -r
1824 * 2) user specified -vsync cfr
1825 * 3) output format is CFR and the user didn't force vsync to
1826 * something else than CFR
1827 *
1828 * in such a case, set ost->frame_rate
1829 */
65ed9e75 1830 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
74b961db
AK
1831 !ost->frame_rate.num && ist &&
1832 (video_sync_method == VSYNC_CFR ||
1833 (video_sync_method == VSYNC_AUTO &&
1834 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2ce8bca5
AK
1835 if (ist->framerate.num)
1836 ost->frame_rate = ist->framerate;
1837 else if (ist->st->avg_frame_rate.num)
1838 ost->frame_rate = ist->st->avg_frame_rate;
1839 else {
1840 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1841 "for the output stream #%d:%d, but no information "
1842 "about the input framerate is available. Falling "
1843 "back to a default value of 25fps. Use the -r option "
1844 "if you want a different framerate.\n",
1845 ost->file_index, ost->index);
1846 ost->frame_rate = (AVRational){ 25, 1 };
1847 }
44b0b85f 1848
74b961db
AK
1849 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1850 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1851 ost->frame_rate = ost->enc->supported_framerates[idx];
1852 }
1853 }
1854
369cb092 1855 if (!ost->filter &&
65ed9e75
AK
1856 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1857 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1858 FilterGraph *fg;
1859 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1860 if (configure_filtergraph(fg)) {
3b266da3 1861 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
636ced8e 1862 exit_program(1);
3b266da3 1863 }
369cb092 1864 }
3b266da3 1865
65ed9e75 1866 switch (enc_ctx->codec_type) {
369cb092 1867 case AVMEDIA_TYPE_AUDIO:
65ed9e75
AK
1868 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1869 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1870 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1871 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1872 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
369cb092
AK
1873 break;
1874 case AVMEDIA_TYPE_VIDEO:
65ed9e75 1875 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1876
65ed9e75
AK
1877 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1878 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1879 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3b266da3 1880 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
65ed9e75 1881 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
3b266da3 1882 ost->filter->filter->inputs[0]->sample_aspect_ratio;
65ed9e75 1883 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1884
93afb6c9
AK
1885 ost->st->avg_frame_rate = ost->frame_rate;
1886
650a5206 1887 if (dec_ctx &&
65ed9e75
AK
1888 (enc_ctx->width != dec_ctx->width ||
1889 enc_ctx->height != dec_ctx->height ||
1890 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1891 enc_ctx->bits_per_raw_sample = 0;
b7327887
AK
1892 }
1893
19ad5673
AK
1894 if (ost->forced_keyframes)
1895 parse_forced_key_frames(ost->forced_keyframes, ost,
1896 ost->st->codec);
6291d7e4
AK
1897 break;
1898 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75 1899 enc_ctx->time_base = (AVRational){1, 1000};
6291d7e4
AK
1900 break;
1901 default:
1902 abort();
1903 break;
1904 }
1905 /* two pass mode */
65ed9e75 1906 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
6291d7e4
AK
1907 char logfilename[1024];
1908 FILE *f;
1909
1910 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
bbcedade
AK
1911 ost->logfile_prefix ? ost->logfile_prefix :
1912 DEFAULT_PASS_LOGFILENAME_PREFIX,
6291d7e4 1913 i);
6e8be949 1914 if (!strcmp(ost->enc->name, "libx264")) {
9580818c 1915 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
6e8be949 1916 } else {
65ed9e75 1917 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
64334ddb
AK
1918 f = fopen(logfilename, "wb");
1919 if (!f) {
1920 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1921 logfilename, strerror(errno));
636ced8e 1922 exit_program(1);
64334ddb
AK
1923 }
1924 ost->logfile = f;
1925 } else {
1926 char *logbuffer;
1927 size_t logbuffer_size;
1928 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1929 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1930 logfilename);
636ced8e 1931 exit_program(1);
64334ddb 1932 }
65ed9e75 1933 enc_ctx->stats_in = logbuffer;
6291d7e4 1934 }
6e8be949 1935 }
6291d7e4
AK
1936 }
1937 }
6291d7e4
AK
1938 }
1939
1940 /* open each encoder */
4288e031 1941 for (i = 0; i < nb_output_streams; i++) {
2e215267 1942 ost = output_streams[i];
6291d7e4 1943 if (ost->encoding_needed) {
03f30c83 1944 AVCodec *codec = ost->enc;
3b266da3 1945 AVCodecContext *dec = NULL;
3b266da3
AK
1946
1947 if ((ist = get_input_stream(ost)))
41776ba9 1948 dec = ist->dec_ctx;
3b266da3 1949 if (dec && dec->subtitle_header) {
6291d7e4
AK
1950 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1951 if (!ost->st->codec->subtitle_header) {
1952 ret = AVERROR(ENOMEM);
1953 goto dump_format;
1954 }
1955 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1956 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1957 }
9580818c
AK
1958 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1959 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1960 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
c854102d
NC
1961 if (ret == AVERROR_EXPERIMENTAL)
1962 abort_codec_experimental(codec, 1);
9a414d89 1963 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 1964 ost->file_index, ost->index);
6291d7e4
AK
1965 goto dump_format;
1966 }
9580818c 1967 assert_avoptions(ost->encoder_opts);
6291d7e4
AK
1968 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1969 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1970 "It takes bits/s as argument, not kbits/s\n");
df0229a7 1971 } else {
9580818c 1972 av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
6291d7e4
AK
1973 }
1974 }
1975
630902a1
AK
1976 /* init input streams */
1977 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1978 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1979 goto dump_format;
6291d7e4 1980
2c474ddb
AK
1981 /* discard unused programs */
1982 for (i = 0; i < nb_input_files; i++) {
2e215267 1983 InputFile *ifile = input_files[i];
2c474ddb
AK
1984 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1985 AVProgram *p = ifile->ctx->programs[j];
1986 int discard = AVDISCARD_ALL;
1987
1988 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1989 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1990 discard = AVDISCARD_DEFAULT;
1991 break;
1992 }
1993 p->discard = discard;
1994 }
1995 }
1996
6291d7e4 1997 /* open files and write file headers */
af70aa45 1998 for (i = 0; i < nb_output_files; i++) {
2e215267 1999 oc = output_files[i]->ctx;
1bb77e51 2000 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
2001 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2002 char errbuf[128];
1e340af8
LB
2003 av_strerror(ret, errbuf, sizeof(errbuf));
2004 snprintf(error, sizeof(error),
2005 "Could not write header for output file #%d "
2006 "(incorrect codec parameters ?): %s",
2007 i, errbuf);
6291d7e4
AK
2008 ret = AVERROR(EINVAL);
2009 goto dump_format;
2010 }
2e215267 2011 assert_avoptions(output_files[i]->opts);
1bb77e51 2012 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
2013 want_sdp = 0;
2014 }
2015 }
2016
2017 dump_format:
2018 /* dump the file output parameters - cannot be done before in case
2019 of stream copy */
03f30c83 2020 for (i = 0; i < nb_output_files; i++) {
2e215267 2021 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
2022 }
2023
2024 /* dump the stream mapping */
e3245b26 2025 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
2026 for (i = 0; i < nb_input_streams; i++) {
2027 ist = input_streams[i];
2028
2029 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
2030 if (ist->filters[j]->graph->graph_desc) {
2031 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2032 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 2033 ist->filters[j]->name);
3b266da3
AK
2034 if (nb_filtergraphs > 1)
2035 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2036 av_log(NULL, AV_LOG_INFO, "\n");
2037 }
2038 }
2039 }
2040
e3245b26 2041 for (i = 0; i < nb_output_streams; i++) {
2e215267 2042 ost = output_streams[i];
4dbc6cee
AK
2043
2044 if (ost->attachment_filename) {
2045 /* an attached file */
2046 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2047 ost->attachment_filename, ost->file_index, ost->index);
2048 continue;
2049 }
3b266da3
AK
2050
2051 if (ost->filter && ost->filter->graph->graph_desc) {
2052 /* output from a complex graph */
cf6c38c6 2053 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2054 if (nb_filtergraphs > 1)
2055 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2056
2057 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2058 ost->index, ost->enc ? ost->enc->name : "?");
2059 continue;
2060 }
2061
9a414d89 2062 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2063 input_streams[ost->source_index]->file_index,
2064 input_streams[ost->source_index]->st->index,
e3245b26
AK
2065 ost->file_index,
2066 ost->index);
2e215267 2067 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2068 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2069 ost->sync_ist->file_index,
2070 ost->sync_ist->st->index);
3d813e4c 2071 if (ost->stream_copy)
e3245b26
AK
2072 av_log(NULL, AV_LOG_INFO, " (copy)");
2073 else
2e215267
AK
2074 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2075 input_streams[ost->source_index]->dec->name : "?",
e3245b26
AK
2076 ost->enc ? ost->enc->name : "?");
2077 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2078 }
2079
2080 if (ret) {
e3245b26 2081 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2082 return ret;
6291d7e4
AK
2083 }
2084
2085 if (want_sdp) {
ea9367e9 2086 print_sdp();
6291d7e4
AK
2087 }
2088
eaf2d37a
AC
2089 return 0;
2090}
2091
c1ef30a6 2092/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
2093static int need_output(void)
2094{
2095 int i;
2096
2097 for (i = 0; i < nb_output_streams; i++) {
2098 OutputStream *ost = output_streams[i];
2099 OutputFile *of = output_files[ost->file_index];
2100 AVFormatContext *os = output_files[ost->file_index]->ctx;
2101
57d24225 2102 if (ost->finished ||
2f51ec2b
AK
2103 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2104 continue;
e58b75f7 2105 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2106 int j;
2107 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 2108 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
2109 continue;
2110 }
2111
2112 return 1;
2113 }
2114
2115 return 0;
2116}
2117
83916029 2118static InputFile *select_input_file(void)
a508e7a1 2119{
83916029 2120 InputFile *ifile = NULL;
a508e7a1 2121 int64_t ipts_min = INT64_MAX;
83916029 2122 int i;
a508e7a1
AK
2123
2124 for (i = 0; i < nb_input_streams; i++) {
2125 InputStream *ist = input_streams[i];
2126 int64_t ipts = ist->last_dts;
2127
0b26ef42 2128 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
2129 continue;
2130 if (!input_files[ist->file_index]->eof_reached) {
2131 if (ipts < ipts_min) {
2132 ipts_min = ipts;
83916029 2133 ifile = input_files[ist->file_index];
a508e7a1
AK
2134 }
2135 }
2136 }
2137
83916029 2138 return ifile;
a508e7a1
AK
2139}
2140
47b812e9 2141#if HAVE_PTHREADS
5db5169e
AK
2142static void *input_thread(void *arg)
2143{
2144 InputFile *f = arg;
2145 int ret = 0;
2146
2147 while (!transcoding_finished && ret >= 0) {
2148 AVPacket pkt;
2149 ret = av_read_frame(f->ctx, &pkt);
2150
2151 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2152 av_usleep(10000);
5db5169e
AK
2153 ret = 0;
2154 continue;
2155 } else if (ret < 0)
2156 break;
2157
2158 pthread_mutex_lock(&f->fifo_lock);
2159 while (!av_fifo_space(f->fifo))
2160 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2161
2162 av_dup_packet(&pkt);
2163 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2164
2165 pthread_mutex_unlock(&f->fifo_lock);
2166 }
2167
2168 f->finished = 1;
2169 return NULL;
2170}
2171
2172static void free_input_threads(void)
2173{
2174 int i;
2175
2176 if (nb_input_files == 1)
2177 return;
2178
2179 transcoding_finished = 1;
2180
2181 for (i = 0; i < nb_input_files; i++) {
2182 InputFile *f = input_files[i];
2183 AVPacket pkt;
2184
9034b0ed 2185 if (!f->fifo || f->joined)
5db5169e
AK
2186 continue;
2187
2188 pthread_mutex_lock(&f->fifo_lock);
2189 while (av_fifo_size(f->fifo)) {
2190 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2191 av_free_packet(&pkt);
2192 }
2193 pthread_cond_signal(&f->fifo_cond);
2194 pthread_mutex_unlock(&f->fifo_lock);
2195
2196 pthread_join(f->thread, NULL);
2197 f->joined = 1;
2198
2199 while (av_fifo_size(f->fifo)) {
2200 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2201 av_free_packet(&pkt);
2202 }
2203 av_fifo_free(f->fifo);
2204 }
2205}
2206
2207static int init_input_threads(void)
2208{
2209 int i, ret;
2210
2211 if (nb_input_files == 1)
2212 return 0;
2213
2214 for (i = 0; i < nb_input_files; i++) {
2215 InputFile *f = input_files[i];
2216
2217 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2218 return AVERROR(ENOMEM);
2219
2220 pthread_mutex_init(&f->fifo_lock, NULL);
2221 pthread_cond_init (&f->fifo_cond, NULL);
2222
2223 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2224 return AVERROR(ret);
2225 }
2226 return 0;
2227}
2228
2229static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2230{
2231 int ret = 0;
2232
2233 pthread_mutex_lock(&f->fifo_lock);
2234
2235 if (av_fifo_size(f->fifo)) {
2236 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2237 pthread_cond_signal(&f->fifo_cond);
2238 } else {
2239 if (f->finished)
2240 ret = AVERROR_EOF;
2241 else
2242 ret = AVERROR(EAGAIN);
2243 }
2244
2245 pthread_mutex_unlock(&f->fifo_lock);
2246
2247 return ret;
2248}
2249#endif
2250
2251static int get_input_packet(InputFile *f, AVPacket *pkt)
2252{
b4a5a292
AK
2253 if (f->rate_emu) {
2254 int i;
2255 for (i = 0; i < f->nb_streams; i++) {
2256 InputStream *ist = input_streams[f->ist_index + i];
2257 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2258 int64_t now = av_gettime() - ist->start;
2259 if (pts > now)
2260 return AVERROR(EAGAIN);
2261 }
2262 }
2263
47b812e9 2264#if HAVE_PTHREADS
5db5169e
AK
2265 if (nb_input_files > 1)
2266 return get_input_packet_mt(f, pkt);
2267#endif
2268 return av_read_frame(f->ctx, pkt);
2269}
2270
0b26ef42
AK
2271static int got_eagain(void)
2272{
2273 int i;
2274 for (i = 0; i < nb_input_files; i++)
2275 if (input_files[i]->eagain)
2276 return 1;
2277 return 0;
2278}
2279
2280static void reset_eagain(void)
2281{
2282 int i;
2283 for (i = 0; i < nb_input_files; i++)
2284 input_files[i]->eagain = 0;
2285}
2286
c1ef30a6 2287/*
0c00fd80
AK
2288 * Read one packet from an input file and send it for
2289 * - decoding -> lavfi (audio/video)
2290 * - decoding -> encoding -> muxing (subtitles)
2291 * - muxing (streamcopy)
2292 *
c1ef30a6 2293 * Return
0c00fd80
AK
2294 * - 0 -- one packet was read and processed
2295 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2296 * this function should be called again
2297 * - AVERROR_EOF -- this function should not be called again
2298 */
2299static int process_input(void)
2300{
2301 InputFile *ifile;
2302 AVFormatContext *is;
2303 InputStream *ist;
2304 AVPacket pkt;
2305 int ret, i, j;
2306
2307 /* select the stream that we must read now */
2308 ifile = select_input_file();
2309 /* if none, if is finished */
2310 if (!ifile) {
2311 if (got_eagain()) {
2312 reset_eagain();
2313 av_usleep(10000);
2314 return AVERROR(EAGAIN);
2315 }
2316 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2317 return AVERROR_EOF;
2318 }
2319
2320 is = ifile->ctx;
2321 ret = get_input_packet(ifile, &pkt);
2322
2323 if (ret == AVERROR(EAGAIN)) {
2324 ifile->eagain = 1;
2325 return ret;
2326 }
2327 if (ret < 0) {
2328 if (ret != AVERROR_EOF) {
2329 print_error(is->filename, ret);
2330 if (exit_on_error)
636ced8e 2331 exit_program(1);
0c00fd80
AK
2332 }
2333 ifile->eof_reached = 1;
2334
2335 for (i = 0; i < ifile->nb_streams; i++) {
2336 ist = input_streams[ifile->ist_index + i];
2337 if (ist->decoding_needed)
2338 output_packet(ist, NULL);
2339
2340 /* mark all outputs that don't go through lavfi as finished */
2341 for (j = 0; j < nb_output_streams; j++) {
2342 OutputStream *ost = output_streams[j];
2343
2344 if (ost->source_index == ifile->ist_index + i &&
2345 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
57d24225 2346 ost->finished= 1;
0c00fd80
AK
2347 }
2348 }
2349
3c0df905 2350 return AVERROR(EAGAIN);
0c00fd80
AK
2351 }
2352
2353 reset_eagain();
2354
2355 if (do_pkt_dump) {
2356 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2357 is->streams[pkt.stream_index]);
2358 }
2359 /* the following test is needed in case new streams appear
2360 dynamically in stream : we ignore them */
2361 if (pkt.stream_index >= ifile->nb_streams)
2362 goto discard_packet;
2363
2364 ist = input_streams[ifile->ist_index + pkt.stream_index];
47543450
AK
2365
2366 ist->data_size += pkt.size;
59444c76 2367 ist->nb_packets++;
47543450 2368
0c00fd80
AK
2369 if (ist->discard)
2370 goto discard_packet;
2371
59444c76
AK
2372 /* add the stream-global side data to the first packet */
2373 if (ist->nb_packets == 1)
2374 for (i = 0; i < ist->st->nb_side_data; i++) {
2375 AVPacketSideData *src_sd = &ist->st->side_data[i];
2376 uint8_t *dst_data;
2377
2378 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2379 continue;
2380
2381 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2382 if (!dst_data)
2383 exit_program(1);
2384
2385 memcpy(dst_data, src_sd->data, src_sd->size);
2386 }
2387
0c00fd80
AK
2388 if (pkt.dts != AV_NOPTS_VALUE)
2389 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2390 if (pkt.pts != AV_NOPTS_VALUE)
2391 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2392
2393 if (pkt.pts != AV_NOPTS_VALUE)
2394 pkt.pts *= ist->ts_scale;
2395 if (pkt.dts != AV_NOPTS_VALUE)
2396 pkt.dts *= ist->ts_scale;
2397
2398 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2399 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2400 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2401 int64_t delta = pkt_dts - ist->next_dts;
2402
2403 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2404 ifile->ts_offset -= delta;
2405 av_log(NULL, AV_LOG_DEBUG,
2406 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2407 delta, ifile->ts_offset);
2408 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2409 if (pkt.pts != AV_NOPTS_VALUE)
2410 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2411 }
2412 }
2413
2414 ret = output_packet(ist, &pkt);
2415 if (ret < 0) {
2416 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2417 ist->file_index, ist->st->index);
2418 if (exit_on_error)
636ced8e 2419 exit_program(1);
0c00fd80
AK
2420 }
2421
2422discard_packet:
2423 av_free_packet(&pkt);
2424
2425 return 0;
2426}
2427
eaf2d37a
AC
2428/*
2429 * The following code is the main loop of the file converter
2430 */
ea9367e9 2431static int transcode(void)
eaf2d37a 2432{
0c00fd80
AK
2433 int ret, i, need_input = 1;
2434 AVFormatContext *os;
eaf2d37a
AC
2435 OutputStream *ost;
2436 InputStream *ist;
eaf2d37a
AC
2437 int64_t timer_start;
2438
ea9367e9 2439 ret = transcode_init();
eaf2d37a
AC
2440 if (ret < 0)
2441 goto fail;
2442
e3245b26 2443 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2444 term_init();
2445
2446 timer_start = av_gettime();
2447
47b812e9 2448#if HAVE_PTHREADS
5db5169e
AK
2449 if ((ret = init_input_threads()) < 0)
2450 goto fail;
2451#endif
2452
c0fbf971 2453 while (!received_sigterm) {
3b266da3 2454 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2455 if (!need_output()) {
2456 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2457 break;
2f51ec2b 2458 }
3b266da3 2459
0c00fd80
AK
2460 /* read and process one input packet if needed */
2461 if (need_input) {
2462 ret = process_input();
2463 if (ret == AVERROR_EOF)
2464 need_input = 0;
6291d7e4
AK
2465 }
2466
0c00fd80 2467 ret = poll_filters();
6291d7e4 2468 if (ret < 0) {
0c00fd80 2469 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
6291d7e4 2470 continue;
6291d7e4 2471
0c00fd80
AK
2472 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2473 break;
6291d7e4
AK
2474 }
2475
6291d7e4 2476 /* dump report by using the output first video and audio streams */
ea9367e9 2477 print_report(0, timer_start);
6291d7e4 2478 }
47b812e9 2479#if HAVE_PTHREADS
5db5169e
AK
2480 free_input_threads();
2481#endif
6291d7e4
AK
2482
2483 /* at the end of stream, we must flush the decoder buffers */
2484 for (i = 0; i < nb_input_streams; i++) {
2e215267 2485 ist = input_streams[i];
9e8aae44 2486 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
ea9367e9 2487 output_packet(ist, NULL);
6291d7e4
AK
2488 }
2489 }
560f7774 2490 poll_filters();
ea9367e9 2491 flush_encoders();
6291d7e4
AK
2492
2493 term_exit();
2494
2495 /* write the trailer if needed and close file */
7636c8c6 2496 for (i = 0; i < nb_output_files; i++) {
2e215267 2497 os = output_files[i]->ctx;
6291d7e4
AK
2498 av_write_trailer(os);
2499 }
2500
2501 /* dump report by using the first video and audio streams */
ea9367e9 2502 print_report(1, timer_start);
6291d7e4
AK
2503
2504 /* close each encoder */
4288e031 2505 for (i = 0; i < nb_output_streams; i++) {
2e215267 2506 ost = output_streams[i];
6291d7e4
AK
2507 if (ost->encoding_needed) {
2508 av_freep(&ost->st->codec->stats_in);
2509 avcodec_close(ost->st->codec);
2510 }
6291d7e4
AK
2511 }
2512
2513 /* close each decoder */
2514 for (i = 0; i < nb_input_streams; i++) {
2e215267 2515 ist = input_streams[i];
6291d7e4 2516 if (ist->decoding_needed) {
41776ba9 2517 avcodec_close(ist->dec_ctx);
07fd0a22 2518 if (ist->hwaccel_uninit)
41776ba9 2519 ist->hwaccel_uninit(ist->dec_ctx);
6291d7e4
AK
2520 }
2521 }
2522
2523 /* finished ! */
2524 ret = 0;
2525
2526 fail:
47b812e9 2527#if HAVE_PTHREADS
5db5169e
AK
2528 free_input_threads();
2529#endif
6291d7e4 2530
4288e031
AK
2531 if (output_streams) {
2532 for (i = 0; i < nb_output_streams; i++) {
2e215267 2533 ost = output_streams[i];
6291d7e4 2534 if (ost) {
3d813e4c 2535 if (ost->stream_copy)
6291d7e4
AK
2536 av_freep(&ost->st->codec->extradata);
2537 if (ost->logfile) {
2538 fclose(ost->logfile);
2539 ost->logfile = NULL;
2540 }
6291d7e4 2541 av_freep(&ost->st->codec->subtitle_header);
6291d7e4 2542 av_free(ost->forced_kf_pts);
9580818c 2543 av_dict_free(&ost->encoder_opts);
5c7db097 2544 av_dict_free(&ost->resample_opts);
6291d7e4
AK
2545 }
2546 }
6291d7e4
AK
2547 }
2548 return ret;
2549}
2550
f5e66827 2551static int64_t getutime(void)
a2c0b830 2552{
f5e66827
AK
2553#if HAVE_GETRUSAGE
2554 struct rusage rusage;
a2c0b830 2555
f5e66827
AK
2556 getrusage(RUSAGE_SELF, &rusage);
2557 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2558#elif HAVE_GETPROCESSTIMES
2559 HANDLE proc;
2560 FILETIME c, e, k, u;
2561 proc = GetCurrentProcess();
2562 GetProcessTimes(proc, &c, &e, &k, &u);
2563 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2564#else
2565 return av_gettime();
2566#endif
a2c0b830
AK
2567}
2568
f5e66827 2569static int64_t getmaxrss(void)
6291d7e4 2570{
f5e66827
AK
2571#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2572 struct rusage rusage;
2573 getrusage(RUSAGE_SELF, &rusage);
2574 return (int64_t)rusage.ru_maxrss * 1024;
2575#elif HAVE_GETPROCESSMEMORYINFO
2576 HANDLE proc;
2577 PROCESS_MEMORY_COUNTERS memcounters;
2578 proc = GetCurrentProcess();
2579 memcounters.cb = sizeof(memcounters);
2580 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2581 return memcounters.PeakPagefileUsage;
2582#else
6291d7e4 2583 return 0;
f5e66827 2584#endif
6291d7e4
AK
2585}
2586
6291d7e4
AK
2587int main(int argc, char **argv)
2588{
77bd1bc7 2589 int ret;
6291d7e4
AK
2590 int64_t ti;
2591
636ced8e 2592 register_exit(avconv_cleanup);
5e3f9979 2593
6291d7e4 2594 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2595 parse_loglevel(argc, argv, options);
6291d7e4
AK
2596
2597 avcodec_register_all();
2598#if CONFIG_AVDEVICE
2599 avdevice_register_all();
2600#endif
6291d7e4 2601 avfilter_register_all();
6291d7e4 2602 av_register_all();
776f2bb9 2603 avformat_network_init();
6291d7e4 2604
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2605 show_banner();
2606
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2607 /* parse options and open all input/output files */
2608 ret = avconv_parse_options(argc, argv);
2609 if (ret < 0)
636ced8e 2610 exit_program(1);
6291d7e4 2611
7636c8c6 2612 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2613 show_usage();
e3245b26 2614 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
636ced8e 2615 exit_program(1);
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2616 }
2617
2618 /* file converter / grab */
2619 if (nb_output_files <= 0) {
2620 fprintf(stderr, "At least one output file must be specified\n");
636ced8e 2621 exit_program(1);
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2622 }
2623
6291d7e4 2624 ti = getutime();
ea9367e9 2625 if (transcode() < 0)
636ced8e 2626 exit_program(1);
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2627 ti = getutime() - ti;
2628 if (do_benchmark) {
2629 int maxrss = getmaxrss() / 1024;
2630 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2631 }
2632
636ced8e 2633 exit_program(0);
dad09ff9 2634 return 0;
6291d7e4 2635}