dict: Change return type of av_dict_copy()
[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"
6291d7e4 40#include "libavutil/fifo.h"
40cf1bba 41#include "libavutil/internal.h"
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42#include "libavutil/intreadwrite.h"
43#include "libavutil/dict.h"
44#include "libavutil/mathematics.h"
45#include "libavutil/pixdesc.h"
46#include "libavutil/avstring.h"
47#include "libavutil/libm.h"
64dca32c 48#include "libavutil/imgutils.h"
896bb0d7 49#include "libavutil/time.h"
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50#include "libavformat/os_support.h"
51
6291d7e4 52# include "libavfilter/avfilter.h"
04a14d4d 53# include "libavfilter/buffersrc.h"
ac712309 54# include "libavfilter/buffersink.h"
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55
56#if HAVE_SYS_RESOURCE_H
3f65eff4 57#include <sys/time.h>
6291d7e4 58#include <sys/types.h>
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59#include <sys/resource.h>
60#elif HAVE_GETPROCESSTIMES
61#include <windows.h>
62#endif
63#if HAVE_GETPROCESSMEMORYINFO
64#include <windows.h>
65#include <psapi.h>
66#endif
67
68#if HAVE_SYS_SELECT_H
69#include <sys/select.h>
70#endif
71
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72#if HAVE_PTHREADS
73#include <pthread.h>
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74#endif
75
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76#include <time.h>
77
f5e66827 78#include "avconv.h"
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79#include "cmdutils.h"
80
81#include "libavutil/avassert.h"
82
83const char program_name[] = "avconv";
84const int program_birth_year = 2000;
85
6291d7e4 86static FILE *vstats_file;
6291d7e4 87
6291d7e4 88static int nb_frames_drop = 0;
6291d7e4 89
6291d7e4 90
3460dd8a 91
47b812e9 92#if HAVE_PTHREADS
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93/* signal to input threads that they should exit; set by the main thread */
94static int transcoding_finished;
95#endif
96
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97InputStream **input_streams = NULL;
98int nb_input_streams = 0;
99InputFile **input_files = NULL;
100int nb_input_files = 0;
6b779ccc 101
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102OutputStream **output_streams = NULL;
103int nb_output_streams = 0;
104OutputFile **output_files = NULL;
105int nb_output_files = 0;
6b779ccc 106
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107FilterGraph **filtergraphs;
108int nb_filtergraphs;
575ec4e1 109
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110static void term_exit(void)
111{
112 av_log(NULL, AV_LOG_QUIET, "");
113}
114
115static volatile int received_sigterm = 0;
116static volatile int received_nb_signals = 0;
117
118static void
119sigterm_handler(int sig)
120{
121 received_sigterm = sig;
122 received_nb_signals++;
123 term_exit();
124}
125
126static void term_init(void)
127{
7636c8c6 128 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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129 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
130#ifdef SIGXCPU
131 signal(SIGXCPU, sigterm_handler);
132#endif
133}
134
2abe947a 135static int decode_interrupt_cb(void *ctx)
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136{
137 return received_nb_signals > 1;
138}
139
f5e66827 140const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
2abe947a 141
636ced8e 142static void avconv_cleanup(int ret)
6291d7e4 143{
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144 int i, j;
145
146 for (i = 0; i < nb_filtergraphs; i++) {
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147 FilterGraph *fg = filtergraphs[i];
148 avfilter_graph_free(&fg->graph);
149 for (j = 0; j < fg->nb_inputs; j++) {
150 av_freep(&fg->inputs[j]->name);
151 av_freep(&fg->inputs[j]);
cf6c38c6 152 }
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153 av_freep(&fg->inputs);
154 for (j = 0; j < fg->nb_outputs; j++) {
155 av_freep(&fg->outputs[j]->name);
156 av_freep(&fg->outputs[j]);
cf6c38c6 157 }
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158 av_freep(&fg->outputs);
159 av_freep(&fg->graph_desc);
160
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161 av_freep(&filtergraphs[i]);
162 }
163 av_freep(&filtergraphs);
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164
165 /* close files */
7636c8c6 166 for (i = 0; i < nb_output_files; i++) {
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167 OutputFile *of = output_files[i];
168 AVFormatContext *s = of->ctx;
274e134e 169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
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170 avio_close(s->pb);
171 avformat_free_context(s);
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172 av_dict_free(&of->opts);
173
2e215267 174 av_freep(&output_files[i]);
6291d7e4 175 }
1135a071 176 for (i = 0; i < nb_output_streams; i++) {
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177 OutputStream *ost = output_streams[i];
178 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
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179 while (bsfc) {
180 AVBitStreamFilterContext *next = bsfc->next;
181 av_bitstream_filter_close(bsfc);
182 bsfc = next;
183 }
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184 ost->bitstream_filters = NULL;
185 av_frame_free(&ost->filtered_frame);
186
187 av_parser_close(ost->parser);
ac646076 188
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189 av_freep(&ost->forced_keyframes);
190 av_freep(&ost->avfilter);
191 av_freep(&ost->logfile_prefix);
c872d310 192
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193 avcodec_free_context(&ost->enc_ctx);
194
2e215267 195 av_freep(&output_streams[i]);
1135a071 196 }
7636c8c6 197 for (i = 0; i < nb_input_files; i++) {
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198 avformat_close_input(&input_files[i]->ctx);
199 av_freep(&input_files[i]);
6291d7e4 200 }
9179f27c 201 for (i = 0; i < nb_input_streams; i++) {
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202 InputStream *ist = input_streams[i];
203
204 av_frame_free(&ist->decoded_frame);
205 av_frame_free(&ist->filter_frame);
f3a6ad22 206 av_dict_free(&ist->decoder_opts);
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207 av_freep(&ist->filters);
208 av_freep(&ist->hwaccel_device);
209
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210 avcodec_free_context(&ist->dec_ctx);
211
2e215267 212 av_freep(&input_streams[i]);
9179f27c 213 }
6291d7e4 214
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215 if (vstats_file)
216 fclose(vstats_file);
217 av_free(vstats_filename);
218
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219 av_freep(&input_streams);
220 av_freep(&input_files);
4288e031 221 av_freep(&output_streams);
af70aa45 222 av_freep(&output_files);
6291d7e4 223
6291d7e4 224 uninit_opts();
6291d7e4 225
776f2bb9 226 avformat_network_deinit();
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227
228 if (received_sigterm) {
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229 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
230 (int) received_sigterm);
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231 exit (255);
232 }
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233}
234
f5e66827 235void assert_avoptions(AVDictionary *m)
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236{
237 AVDictionaryEntry *t;
238 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
f24facd3 239 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
636ced8e 240 exit_program(1);
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241 }
242}
243
c854102d 244static void abort_codec_experimental(AVCodec *c, int encoder)
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245{
246 const char *codec_string = encoder ? "encoder" : "decoder";
247 AVCodec *codec;
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248 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
249 "results.\nAdd '-strict experimental' if you want to use it.\n",
250 codec_string, c->name);
251 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
def97856 252 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
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253 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
254 codec_string, codec->name);
636ced8e 255 exit_program(1);
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256}
257
f15f02c2 258static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
7636c8c6 259{
f15f02c2 260 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
3892bdab 261 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
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262 int ret;
263
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264 /*
265 * Audio encoders may split the packets -- #frames in != #packets out.
266 * But there is no reordering, so we can limit the number of output packets
267 * by simply dropping them here.
268 * Counting encoded video frames needs to be done separately because of
269 * reordering, see do_video_out()
270 */
271 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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272 if (ost->frame_number >= ost->max_frames) {
273 av_free_packet(pkt);
99932847 274 return;
c9594fe0 275 }
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276 ost->frame_number++;
277 }
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278 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
279 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
280 NULL);
281 ost->quality = sd ? *(int *)sd : -1;
282 }
99932847 283
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284 while (bsfc) {
285 AVPacket new_pkt = *pkt;
286 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
287 &new_pkt.data, &new_pkt.size,
288 pkt->data, pkt->size,
289 pkt->flags & AV_PKT_FLAG_KEY);
290 if (a > 0) {
6291d7e4 291 av_free_packet(pkt);
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292 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
293 av_buffer_default_free, NULL, 0);
294 if (!new_pkt.buf)
636ced8e 295 exit_program(1);
7636c8c6 296 } else if (a < 0) {
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297 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
298 bsfc->filter->name, pkt->stream_index,
299 avctx->codec ? avctx->codec->name : "copy");
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300 print_error("", a);
301 if (exit_on_error)
636ced8e 302 exit_program(1);
6291d7e4 303 }
7636c8c6 304 *pkt = new_pkt;
6291d7e4 305
7636c8c6 306 bsfc = bsfc->next;
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307 }
308
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309 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
310 ost->last_mux_dts != AV_NOPTS_VALUE &&
311 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
312 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
313 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
314 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
315 if (exit_on_error) {
316 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
636ced8e 317 exit_program(1);
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318 }
319 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
320 "in incorrect timestamps in the output file.\n",
321 ost->last_mux_dts + 1);
322 pkt->dts = ost->last_mux_dts + 1;
323 if (pkt->pts != AV_NOPTS_VALUE)
324 pkt->pts = FFMAX(pkt->pts, pkt->dts);
325 }
326 ost->last_mux_dts = pkt->dts;
327
baeb59d8 328 ost->data_size += pkt->size;
47543450 329 ost->packets_written++;
baeb59d8 330
61a09968 331 pkt->stream_index = ost->index;
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332 ret = av_interleaved_write_frame(s, pkt);
333 if (ret < 0) {
6291d7e4 334 print_error("av_interleaved_write_frame()", ret);
636ced8e 335 exit_program(1);
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336 }
337}
338
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339static int check_recording_time(OutputStream *ost)
340{
2e215267 341 OutputFile *of = output_files[ost->file_index];
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342
343 if (of->recording_time != INT64_MAX &&
38313626 344 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
1270e12e 345 AV_TIME_BASE_Q) >= 0) {
57d24225 346 ost->finished = 1;
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347 return 0;
348 }
349 return 1;
350}
351
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352static void do_audio_out(AVFormatContext *s, OutputStream *ost,
353 AVFrame *frame)
ee458cb1 354{
38313626 355 AVCodecContext *enc = ost->enc_ctx;
ee458cb1 356 AVPacket pkt;
369cb092 357 int got_packet = 0;
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JR
358
359 av_init_packet(&pkt);
360 pkt.data = NULL;
361 pkt.size = 0;
362
369cb092 363 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
9b9fc9ba 364 frame->pts = ost->sync_opts;
369cb092 365 ost->sync_opts = frame->pts + frame->nb_samples;
ee458cb1 366
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367 ost->samples_encoded += frame->nb_samples;
368 ost->frames_encoded++;
369
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370 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
371 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
636ced8e 372 exit_program(1);
ee458cb1
JR
373 }
374
375 if (got_packet) {
452860d7 376 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
ee458cb1 377 write_frame(s, &pkt, ost);
ee458cb1 378 }
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379}
380
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381static void do_subtitle_out(AVFormatContext *s,
382 OutputStream *ost,
383 InputStream *ist,
384 AVSubtitle *sub,
385 int64_t pts)
386{
387 static uint8_t *subtitle_out = NULL;
388 int subtitle_out_max_size = 1024 * 1024;
389 int subtitle_out_size, nb, i;
390 AVCodecContext *enc;
391 AVPacket pkt;
392
393 if (pts == AV_NOPTS_VALUE) {
e3245b26 394 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
6291d7e4 395 if (exit_on_error)
636ced8e 396 exit_program(1);
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397 return;
398 }
399
38313626 400 enc = ost->enc_ctx;
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401
402 if (!subtitle_out) {
403 subtitle_out = av_malloc(subtitle_out_max_size);
404 }
405
406 /* Note: DVB subtitle need one packet to draw them and one other
407 packet to clear them */
408 /* XXX: signal it in the codec context ? */
36ef5369 409 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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410 nb = 2;
411 else
412 nb = 1;
413
7636c8c6 414 for (i = 0; i < nb; i++) {
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415 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
416 if (!check_recording_time(ost))
417 return;
418
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419 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
420 // start_display_time is required to be 0
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421 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
422 sub->end_display_time -= sub->start_display_time;
6291d7e4 423 sub->start_display_time = 0;
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424
425 ost->frames_encoded++;
426
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427 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
428 subtitle_out_max_size, sub);
429 if (subtitle_out_size < 0) {
e3245b26 430 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
636ced8e 431 exit_program(1);
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432 }
433
434 av_init_packet(&pkt);
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435 pkt.data = subtitle_out;
436 pkt.size = subtitle_out_size;
7636c8c6 437 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
36ef5369 438 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
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439 /* XXX: the pts correction is handled here. Maybe handling
440 it in the codec would be better */
441 if (i == 0)
442 pkt.pts += 90 * sub->start_display_time;
443 else
444 pkt.pts += 90 * sub->end_display_time;
445 }
f15f02c2 446 write_frame(s, &pkt, ost);
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447 }
448}
449
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450static void do_video_out(AVFormatContext *s,
451 OutputStream *ost,
87ef060c 452 AVFrame *in_picture,
fb722a90 453 int *frame_size)
87ef060c 454{
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455 int ret, format_video_sync;
456 AVPacket pkt;
38313626 457 AVCodecContext *enc = ost->enc_ctx;
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458
459 *frame_size = 0;
460
553735f5 461 format_video_sync = video_sync_method;
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462 if (format_video_sync == VSYNC_AUTO)
463 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
464 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
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465 if (format_video_sync != VSYNC_PASSTHROUGH &&
466 ost->frame_number &&
467 in_picture->pts != AV_NOPTS_VALUE &&
468 in_picture->pts < ost->sync_opts) {
d43040e2 469 nb_frames_drop++;
aa499568
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470 av_log(NULL, AV_LOG_WARNING,
471 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
472 ost->frame_number, ost->st->index, in_picture->pts);
87ef060c 473 return;
d43040e2 474 }
87ef060c 475
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476 if (in_picture->pts == AV_NOPTS_VALUE)
477 in_picture->pts = ost->sync_opts;
478 ost->sync_opts = in_picture->pts;
479
480
1270e12e 481 if (!ost->frame_number)
74b961db 482 ost->first_pts = in_picture->pts;
1270e12e 483
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484 av_init_packet(&pkt);
485 pkt.data = NULL;
486 pkt.size = 0;
6291d7e4 487
a83c0da5 488 if (ost->frame_number >= ost->max_frames)
39885a4b 489 return;
1270e12e 490
39885a4b 491 if (s->oformat->flags & AVFMT_RAWPICTURE &&
36ef5369 492 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
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493 /* raw pictures are written as AVPicture structure to
494 avoid any copies. We support temporarily the older
495 method. */
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496#if FF_API_CODED_FRAME
497FF_DISABLE_DEPRECATION_WARNINGS
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498 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
499 enc->coded_frame->top_field_first = in_picture->top_field_first;
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500FF_ENABLE_DEPRECATION_WARNINGS
501#endif
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502 pkt.data = (uint8_t *)in_picture;
503 pkt.size = sizeof(AVPicture);
504 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
505 pkt.flags |= AV_PKT_FLAG_KEY;
6291d7e4 506
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507 write_frame(s, &pkt, ost);
508 } else {
509 int got_packet;
6291d7e4 510
7c6eb0a1 511 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
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512 ost->top_field_first >= 0)
513 in_picture->top_field_first = !!ost->top_field_first;
514
38313626 515 in_picture->quality = enc->global_quality;
59b55c49 516 in_picture->pict_type = 0;
39885a4b 517 if (ost->forced_kf_index < ost->forced_kf_count &&
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518 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
519 in_picture->pict_type = AV_PICTURE_TYPE_I;
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520 ost->forced_kf_index++;
521 }
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522
523 ost->frames_encoded++;
524
9b2dc295 525 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
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526 if (ret < 0) {
527 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
636ced8e 528 exit_program(1);
39885a4b 529 }
6291d7e4 530
39885a4b 531 if (got_packet) {
452860d7 532 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
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533 write_frame(s, &pkt, ost);
534 *frame_size = pkt.size;
324fbadf 535
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536 /* if two pass, output log */
537 if (ost->logfile && enc->stats_out) {
538 fprintf(ost->logfile, "%s", enc->stats_out);
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539 }
540 }
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541 }
542 ost->sync_opts++;
543 /*
544 * For video, number of frames in == number of packets out.
545 * But there may be reordering, so we can't throw away frames on encoder
546 * flush, we need to limit them here, before they go into encoder.
547 */
548 ost->frame_number++;
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549}
550
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551static double psnr(double d)
552{
553 return -10.0 * log(d) / log(10.0);
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554}
555
70478746 556static void do_video_stats(OutputStream *ost, int frame_size)
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557{
558 AVCodecContext *enc;
559 int frame_number;
560 double ti1, bitrate, avg_bitrate;
561
562 /* this is executed just the first time do_video_stats is called */
563 if (!vstats_file) {
564 vstats_file = fopen(vstats_filename, "w");
565 if (!vstats_file) {
566 perror("fopen");
636ced8e 567 exit_program(1);
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568 }
569 }
570
38313626 571 enc = ost->enc_ctx;
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572 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
573 frame_number = ost->frame_number;
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574 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
575 ost->quality / (float)FF_QP2LAMBDA);
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576
577#if FF_API_CODED_FRAME
578FF_DISABLE_DEPRECATION_WARNINGS
7c6eb0a1 579 if (enc->flags & AV_CODEC_FLAG_PSNR)
7636c8c6 580 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
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581FF_ENABLE_DEPRECATION_WARNINGS
582#endif
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583
584 fprintf(vstats_file,"f_size= %6d ", frame_size);
585 /* compute pts value */
586 ti1 = ost->sync_opts * av_q2d(enc->time_base);
587 if (ti1 < 0.01)
588 ti1 = 0.01;
589
7636c8c6 590 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
baeb59d8 591 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
6291d7e4 592 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
baeb59d8 593 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
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594#if FF_API_CODED_FRAME
595FF_DISABLE_DEPRECATION_WARNINGS
6291d7e4 596 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
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597FF_ENABLE_DEPRECATION_WARNINGS
598#endif
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599 }
600}
601
c1ef30a6 602/*
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603 * Read one frame for lavfi output for ost and encode it.
604 */
605static int poll_filter(OutputStream *ost)
560f7774 606{
a4f50110 607 OutputFile *of = output_files[ost->file_index];
560f7774 608 AVFrame *filtered_frame = NULL;
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609 int frame_size, ret;
610
5b9c3b45 611 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
a4f50110 612 return AVERROR(ENOMEM);
674fa491 613 }
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614 filtered_frame = ost->filtered_frame;
615
616 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
def97856 617 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
9b2dc295 618 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
38313626 619 ost->enc_ctx->frame_size);
a4f50110 620 else
9b2dc295 621 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
369cb092 622
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623 if (ret < 0)
624 return ret;
560f7774 625
9b2dc295 626 if (filtered_frame->pts != AV_NOPTS_VALUE) {
56ee3f9d 627 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
9b2dc295 628 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
a4f50110 629 ost->filter->filter->inputs[0]->time_base,
38313626 630 ost->enc_ctx->time_base) -
56ee3f9d 631 av_rescale_q(start_time,
a4f50110 632 AV_TIME_BASE_Q,
38313626 633 ost->enc_ctx->time_base);
560f7774 634 }
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635
636 switch (ost->filter->filter->inputs[0]->type) {
637 case AVMEDIA_TYPE_VIDEO:
638 if (!ost->frame_aspect_ratio)
38313626 639 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
a4f50110 640
fb722a90 641 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
a4f50110 642 if (vstats_filename && frame_size)
70478746 643 do_video_stats(ost, frame_size);
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644 break;
645 case AVMEDIA_TYPE_AUDIO:
646 do_audio_out(of->ctx, ost, filtered_frame);
647 break;
648 default:
649 // TODO support subtitle filters
650 av_assert0(0);
651 }
652
9b2dc295 653 av_frame_unref(filtered_frame);
a4f50110 654
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655 return 0;
656}
657
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658static void finish_output_stream(OutputStream *ost)
659{
660 OutputFile *of = output_files[ost->file_index];
661 int i;
662
663 ost->finished = 1;
664
665 if (of->shortest) {
666 for (i = 0; i < of->ctx->nb_streams; i++)
667 output_streams[of->ost_index + i]->finished = 1;
668 }
669}
670
c1ef30a6 671/*
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672 * Read as many frames from possible from lavfi and encode them.
673 *
674 * Always read from the active stream with the lowest timestamp. If no frames
675 * are available for it then return EAGAIN and wait for more input. This way we
676 * can use lavfi sources that generate unlimited amount of frames without memory
677 * usage exploding.
678 */
679static int poll_filters(void)
680{
48e50921 681 int i, ret = 0;
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682
683 while (ret >= 0 && !received_sigterm) {
684 OutputStream *ost = NULL;
685 int64_t min_pts = INT64_MAX;
686
687 /* choose output stream with the lowest timestamp */
688 for (i = 0; i < nb_output_streams; i++) {
689 int64_t pts = output_streams[i]->sync_opts;
690
57d24225 691 if (!output_streams[i]->filter || output_streams[i]->finished)
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692 continue;
693
38313626 694 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
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695 AV_TIME_BASE_Q);
696 if (pts < min_pts) {
697 min_pts = pts;
698 ost = output_streams[i];
699 }
700 }
701
702 if (!ost)
703 break;
704
705 ret = poll_filter(ost);
706
707 if (ret == AVERROR_EOF) {
48e50921 708 finish_output_stream(ost);
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709 ret = 0;
710 } else if (ret == AVERROR(EAGAIN))
711 return 0;
712 }
713
714 return ret;
715}
716
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717static void print_final_stats(int64_t total_size)
718{
719 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
720 uint64_t data_size = 0;
721 float percent = -1.0;
47543450 722 int i, j;
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723
724 for (i = 0; i < nb_output_streams; i++) {
725 OutputStream *ost = output_streams[i];
38313626 726 switch (ost->enc_ctx->codec_type) {
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727 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
728 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
729 default: other_size += ost->data_size; break;
730 }
38313626 731 extra_size += ost->enc_ctx->extradata_size;
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732 data_size += ost->data_size;
733 }
734
735 if (data_size && total_size >= data_size)
736 percent = 100.0 * (total_size - data_size) / data_size;
737
738 av_log(NULL, AV_LOG_INFO, "\n");
739 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
740 video_size / 1024.0,
741 audio_size / 1024.0,
742 other_size / 1024.0,
743 extra_size / 1024.0);
744 if (percent >= 0.0)
745 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
746 else
747 av_log(NULL, AV_LOG_INFO, "unknown");
748 av_log(NULL, AV_LOG_INFO, "\n");
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749
750 /* print verbose per-stream stats */
751 for (i = 0; i < nb_input_files; i++) {
752 InputFile *f = input_files[i];
753 uint64_t total_packets = 0, total_size = 0;
754
755 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
756 i, f->ctx->filename);
757
758 for (j = 0; j < f->nb_streams; j++) {
759 InputStream *ist = input_streams[f->ist_index + j];
41776ba9 760 enum AVMediaType type = ist->dec_ctx->codec_type;
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761
762 total_size += ist->data_size;
763 total_packets += ist->nb_packets;
764
765 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
766 i, j, media_type_string(type));
767 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
768 ist->nb_packets, ist->data_size);
769
770 if (ist->decoding_needed) {
771 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
772 ist->frames_decoded);
773 if (type == AVMEDIA_TYPE_AUDIO)
774 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
775 av_log(NULL, AV_LOG_VERBOSE, "; ");
776 }
777
778 av_log(NULL, AV_LOG_VERBOSE, "\n");
779 }
780
781 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
782 total_packets, total_size);
783 }
784
785 for (i = 0; i < nb_output_files; i++) {
786 OutputFile *of = output_files[i];
787 uint64_t total_packets = 0, total_size = 0;
788
789 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
790 i, of->ctx->filename);
791
792 for (j = 0; j < of->ctx->nb_streams; j++) {
793 OutputStream *ost = output_streams[of->ost_index + j];
38313626 794 enum AVMediaType type = ost->enc_ctx->codec_type;
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795
796 total_size += ost->data_size;
797 total_packets += ost->packets_written;
798
799 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
800 i, j, media_type_string(type));
801 if (ost->encoding_needed) {
802 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
803 ost->frames_encoded);
804 if (type == AVMEDIA_TYPE_AUDIO)
805 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
806 av_log(NULL, AV_LOG_VERBOSE, "; ");
807 }
808
809 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
810 ost->packets_written, ost->data_size);
811
812 av_log(NULL, AV_LOG_VERBOSE, "\n");
813 }
814
815 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
816 total_packets, total_size);
817 }
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818}
819
ea9367e9 820static void print_report(int is_last_report, int64_t timer_start)
6291d7e4
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821{
822 char buf[1024];
823 OutputStream *ost;
824 AVFormatContext *oc;
825 int64_t total_size;
826 AVCodecContext *enc;
827 int frame_number, vid, i;
828 double bitrate, ti1, pts;
829 static int64_t last_time = -1;
830 static int qp_histogram[52];
831
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832 if (!print_stats && !is_last_report)
833 return;
834
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835 if (!is_last_report) {
836 int64_t cur_time;
837 /* display the report every 0.5 seconds */
d0c09302 838 cur_time = av_gettime_relative();
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839 if (last_time == -1) {
840 last_time = cur_time;
841 return;
842 }
843 if ((cur_time - last_time) < 500000)
844 return;
845 last_time = cur_time;
846 }
847
848
2e215267 849 oc = output_files[0]->ctx;
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850
851 total_size = avio_size(oc->pb);
1b891d17 852 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
7636c8c6 853 total_size = avio_tell(oc->pb);
1b891d17
JG
854 if (total_size < 0) {
855 char errbuf[128];
856 av_strerror(total_size, errbuf, sizeof(errbuf));
857 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
858 "avio_tell() failed: %s\n", errbuf);
859 total_size = 0;
860 }
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861
862 buf[0] = '\0';
863 ti1 = 1e10;
864 vid = 0;
ea9367e9 865 for (i = 0; i < nb_output_streams; i++) {
6291d7e4 866 float q = -1;
2e215267 867 ost = output_streams[i];
38313626 868 enc = ost->enc_ctx;
5d3addb9
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869 if (!ost->stream_copy)
870 q = ost->quality / (float) FF_QP2LAMBDA;
871
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872 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
873 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
874 }
875 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
d0c09302 876 float t = (av_gettime_relative() - timer_start) / 1000000.0;
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877
878 frame_number = ost->frame_number;
879 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
7636c8c6
AD
880 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
881 if (is_last_report)
6291d7e4 882 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
7636c8c6 883 if (qp_hist) {
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884 int j;
885 int qp = lrintf(q);
7636c8c6 886 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
6291d7e4 887 qp_histogram[qp]++;
7636c8c6 888 for (j = 0; j < 32; j++)
d752509b 889 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
6291d7e4 890 }
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891
892#if FF_API_CODED_FRAME
893FF_DISABLE_DEPRECATION_WARNINGS
7c6eb0a1 894 if (enc->flags & AV_CODEC_FLAG_PSNR) {
6291d7e4 895 int j;
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AD
896 double error, error_sum = 0;
897 double scale, scale_sum = 0;
898 char type[3] = { 'Y','U','V' };
6291d7e4 899 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
7636c8c6
AD
900 for (j = 0; j < 3; j++) {
901 if (is_last_report) {
902 error = enc->error[j];
903 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
904 } else {
905 error = enc->coded_frame->error[j];
906 scale = enc->width * enc->height * 255.0 * 255.0;
6291d7e4 907 }
7636c8c6
AD
908 if (j)
909 scale /= 4;
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910 error_sum += error;
911 scale_sum += scale;
7636c8c6 912 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
6291d7e4 913 }
7636c8c6 914 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
6291d7e4 915 }
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916FF_ENABLE_DEPRECATION_WARNINGS
917#endif
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918 vid = 1;
919 }
920 /* compute min output value */
dc40d886 921 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
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922 if ((pts < ti1) && (pts > 0))
923 ti1 = pts;
924 }
925 if (ti1 < 0.01)
926 ti1 = 0.01;
927
e3245b26 928 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
6291d7e4 929
e3245b26 930 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
6291d7e4
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931 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
932 (double)total_size / 1024, ti1, bitrate);
933
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934 if (nb_frames_drop)
935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
936 nb_frames_drop);
6291d7e4 937
f5646a32 938 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
6291d7e4 939
e3245b26 940 fflush(stderr);
6291d7e4 941
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942 if (is_last_report)
943 print_final_stats(total_size);
baeb59d8 944
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945}
946
ea9367e9 947static void flush_encoders(void)
4a4ce2e7
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948{
949 int i, ret;
950
ea9367e9 951 for (i = 0; i < nb_output_streams; i++) {
2e215267 952 OutputStream *ost = output_streams[i];
38313626 953 AVCodecContext *enc = ost->enc_ctx;
2e215267 954 AVFormatContext *os = output_files[ost->file_index]->ctx;
ee458cb1 955 int stop_encoding = 0;
6f1c66d5 956
b62b5cb6 957 if (!ost->encoding_needed)
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958 continue;
959
38313626 960 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
6f1c66d5 961 continue;
38313626 962 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
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963 continue;
964
7636c8c6 965 for (;;) {
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966 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
967 const char *desc;
6f1c66d5 968
38313626 969 switch (enc->codec_type) {
6f1c66d5 970 case AVMEDIA_TYPE_AUDIO:
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971 encode = avcodec_encode_audio2;
972 desc = "Audio";
6f1c66d5
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973 break;
974 case AVMEDIA_TYPE_VIDEO:
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975 encode = avcodec_encode_video2;
976 desc = "Video";
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977 break;
978 default:
979 stop_encoding = 1;
980 }
981
982 if (encode) {
983 AVPacket pkt;
984 int got_packet;
985 av_init_packet(&pkt);
986 pkt.data = NULL;
987 pkt.size = 0;
988
989 ret = encode(enc, &pkt, NULL, &got_packet);
6f1c66d5 990 if (ret < 0) {
369cb092 991 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
636ced8e 992 exit_program(1);
6f1c66d5 993 }
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994 if (ost->logfile && enc->stats_out) {
995 fprintf(ost->logfile, "%s", enc->stats_out);
996 }
8e37038a 997 if (!got_packet) {
ee458cb1
JR
998 stop_encoding = 1;
999 break;
1000 }
452860d7 1001 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
ee458cb1 1002 write_frame(os, &pkt, ost);
4a4ce2e7 1003 }
369cb092 1004
ee458cb1 1005 if (stop_encoding)
6f1c66d5 1006 break;
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1007 }
1008 }
1009}
1010
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1011/*
1012 * Check whether a packet from ist should be written into ost at this time
1013 */
1014static int check_output_constraints(InputStream *ist, OutputStream *ost)
1015{
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1016 OutputFile *of = output_files[ost->file_index];
1017 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
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1018
1019 if (ost->source_index != ist_index)
1020 return 0;
1021
56ee3f9d 1022 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
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1023 return 0;
1024
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1025 return 1;
1026}
1027
1028static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1029{
2e215267 1030 OutputFile *of = output_files[ost->file_index];
488a0fa6 1031 InputFile *f = input_files [ist->file_index];
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1032 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1033 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
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1034 AVPacket opkt;
1035
1036 av_init_packet(&opkt);
1037
1038 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1039 !ost->copy_initial_nonkeyframes)
1040 return;
1041
1270e12e 1042 if (of->recording_time != INT64_MAX &&
56ee3f9d 1043 ist->last_dts >= of->recording_time + start_time) {
57d24225 1044 ost->finished = 1;
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1045 return;
1046 }
1047
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AK
1048 if (f->recording_time != INT64_MAX) {
1049 start_time = f->ctx->start_time;
1050 if (f->start_time != AV_NOPTS_VALUE)
1051 start_time += f->start_time;
1052 if (ist->last_dts >= f->recording_time + start_time) {
1053 ost->finished = 1;
1054 return;
1055 }
1056 }
1057
7204ec1a 1058 /* force the input stream PTS */
38313626 1059 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
7204ec1a 1060 ost->sync_opts++;
7204ec1a 1061
7204ec1a
AK
1062 if (pkt->pts != AV_NOPTS_VALUE)
1063 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1064 else
1065 opkt.pts = AV_NOPTS_VALUE;
1066
1067 if (pkt->dts == AV_NOPTS_VALUE)
23576b3f 1068 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
7204ec1a
AK
1069 else
1070 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1071 opkt.dts -= ost_tb_start_time;
1072
1073 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1074 opkt.flags = pkt->flags;
1075
7636c8c6 1076 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
38313626
AK
1077 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1078 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1079 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1080 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
7204ec1a 1081 ) {
c872d310
AK
1082 if (av_parser_change(ost->parser, ost->st->codec,
1083 &opkt.data, &opkt.size,
1084 pkt->data, pkt->size,
1085 pkt->flags & AV_PKT_FLAG_KEY)) {
9b2dc295
AK
1086 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1087 if (!opkt.buf)
636ced8e 1088 exit_program(1);
9b2dc295 1089 }
7204ec1a
AK
1090 } else {
1091 opkt.data = pkt->data;
1092 opkt.size = pkt->size;
1093 }
1094
f15f02c2 1095 write_frame(of->ctx, &opkt, ost);
7204ec1a
AK
1096}
1097
f5e66827 1098int guess_input_channel_layout(InputStream *ist)
369cb092 1099{
41776ba9 1100 AVCodecContext *dec = ist->dec_ctx;
369cb092
AK
1101
1102 if (!dec->channel_layout) {
1103 char layout_name[256];
1104
1105 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1106 if (!dec->channel_layout)
1107 return 0;
1108 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1109 dec->channels, dec->channel_layout);
1110 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1111 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1112 }
1113 return 1;
1114}
1115
0629f612 1116static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
ded28ba3 1117{
9b2dc295 1118 AVFrame *decoded_frame, *f;
41776ba9 1119 AVCodecContext *avctx = ist->dec_ctx;
9b2dc295 1120 int i, ret, err = 0, resample_changed;
ded28ba3 1121
5b9c3b45 1122 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
d1241ff3 1123 return AVERROR(ENOMEM);
9b2dc295
AK
1124 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1125 return AVERROR(ENOMEM);
9179f27c 1126 decoded_frame = ist->decoded_frame;
ded28ba3 1127
d1241ff3 1128 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
b114f6d4 1129 if (!*got_output || ret < 0)
af8ad892 1130 return ret;
ded28ba3 1131
47543450
AK
1132 ist->samples_decoded += decoded_frame->nb_samples;
1133 ist->frames_decoded++;
1134
d1241ff3
JR
1135 /* if the decoder provides a pts, use it instead of the last packet pts.
1136 the decoder could be delaying output by a packet or more. */
1137 if (decoded_frame->pts != AV_NOPTS_VALUE)
3101bb66 1138 ist->next_dts = decoded_frame->pts;
1ae8198b 1139 else if (pkt->pts != AV_NOPTS_VALUE)
369cb092 1140 decoded_frame->pts = pkt->pts;
1ae8198b 1141 pkt->pts = AV_NOPTS_VALUE;
ded28ba3 1142
369cb092
AK
1143 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1144 ist->resample_channels != avctx->channels ||
1145 ist->resample_channel_layout != decoded_frame->channel_layout ||
1146 ist->resample_sample_rate != decoded_frame->sample_rate;
1147 if (resample_changed) {
1148 char layout1[64], layout2[64];
ded28ba3 1149
369cb092
AK
1150 if (!guess_input_channel_layout(ist)) {
1151 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1152 "layout for Input Stream #%d.%d\n", ist->file_index,
1153 ist->st->index);
636ced8e 1154 exit_program(1);
369cb092
AK
1155 }
1156 decoded_frame->channel_layout = avctx->channel_layout;
1157
1158 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1159 ist->resample_channel_layout);
1160 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1161 decoded_frame->channel_layout);
1162
1163 av_log(NULL, AV_LOG_INFO,
1164 "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",
1165 ist->file_index, ist->st->index,
1166 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1167 ist->resample_channels, layout1,
1168 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1169 avctx->channels, layout2);
1170
1171 ist->resample_sample_fmt = decoded_frame->format;
1172 ist->resample_sample_rate = decoded_frame->sample_rate;
1173 ist->resample_channel_layout = decoded_frame->channel_layout;
1174 ist->resample_channels = avctx->channels;
1175
1176 for (i = 0; i < nb_filtergraphs; i++)
1177 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1178 configure_filtergraph(filtergraphs[i]) < 0) {
1179 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1180 exit_program(1);
369cb092 1181 }
ded28ba3 1182 }
110d2af2 1183
715129cd
MS
1184 if (decoded_frame->pts != AV_NOPTS_VALUE)
1185 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1186 ist->st->time_base,
41776ba9 1187 (AVRational){1, avctx->sample_rate});
9b2dc295
AK
1188 for (i = 0; i < ist->nb_filters; i++) {
1189 if (i < ist->nb_filters - 1) {
1190 f = ist->filter_frame;
1191 err = av_frame_ref(f, decoded_frame);
1192 if (err < 0)
1193 break;
1194 } else
1195 f = decoded_frame;
369cb092 1196
9b2dc295
AK
1197 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1198 if (err < 0)
1199 break;
1200 }
1201
1202 av_frame_unref(ist->filter_frame);
1203 av_frame_unref(decoded_frame);
1204 return err < 0 ? err : ret;
ded28ba3
AK
1205}
1206
0629f612 1207static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
45d4b66f 1208{
9b2dc295 1209 AVFrame *decoded_frame, *f;
9b2dc295 1210 int i, ret = 0, err = 0, resample_changed;
45d4b66f 1211
9b2dc295
AK
1212 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1213 return AVERROR(ENOMEM);
1214 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
45d4b66f 1215 return AVERROR(ENOMEM);
9179f27c 1216 decoded_frame = ist->decoded_frame;
45d4b66f 1217
41776ba9 1218 ret = avcodec_decode_video2(ist->dec_ctx,
45d4b66f 1219 decoded_frame, got_output, pkt);
b114f6d4 1220 if (!*got_output || ret < 0)
af8ad892 1221 return ret;
f154ef1a 1222
47543450
AK
1223 ist->frames_decoded++;
1224
07fd0a22 1225 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
41776ba9 1226 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
07fd0a22
AK
1227 if (err < 0)
1228 goto fail;
1229 }
1230 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1231
b34856a1
AK
1232 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1233 decoded_frame->pkt_dts);
45d4b66f 1234 pkt->size = 0;
45d4b66f 1235
695ec04e
AK
1236 if (ist->st->sample_aspect_ratio.num)
1237 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1238
e77c8662
AK
1239 resample_changed = ist->resample_width != decoded_frame->width ||
1240 ist->resample_height != decoded_frame->height ||
1241 ist->resample_pix_fmt != decoded_frame->format;
1242 if (resample_changed) {
1243 av_log(NULL, AV_LOG_INFO,
1244 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1245 ist->file_index, ist->st->index,
1246 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1247 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1248
2f34021d 1249 ret = poll_filters();
22a6d48b
LB
1250 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1251 char errbuf[128];
1252 av_strerror(ret, errbuf, sizeof(errbuf));
1253
1254 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1255 }
2f34021d 1256
e77c8662
AK
1257 ist->resample_width = decoded_frame->width;
1258 ist->resample_height = decoded_frame->height;
1259 ist->resample_pix_fmt = decoded_frame->format;
e77c8662 1260
3b266da3
AK
1261 for (i = 0; i < nb_filtergraphs; i++)
1262 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1263 configure_filtergraph(filtergraphs[i]) < 0) {
ac646076 1264 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
636ced8e 1265 exit_program(1);
3b266da3
AK
1266 }
1267 }
ac646076 1268
3b266da3 1269 for (i = 0; i < ist->nb_filters; i++) {
9b2dc295
AK
1270 if (i < ist->nb_filters - 1) {
1271 f = ist->filter_frame;
1272 err = av_frame_ref(f, decoded_frame);
1273 if (err < 0)
1274 break;
04a14d4d 1275 } else
9b2dc295
AK
1276 f = decoded_frame;
1277
1278 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1279 if (err < 0)
1280 break;
45d4b66f
AK
1281 }
1282
07fd0a22 1283fail:
9b2dc295
AK
1284 av_frame_unref(ist->filter_frame);
1285 av_frame_unref(decoded_frame);
9b2dc295 1286 return err < 0 ? err : ret;
45d4b66f
AK
1287}
1288
9595234c
AK
1289static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1290{
1291 AVSubtitle subtitle;
41776ba9 1292 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
9595234c
AK
1293 &subtitle, got_output, pkt);
1294 if (ret < 0)
1295 return ret;
1296 if (!*got_output)
af8ad892 1297 return ret;
9595234c 1298
47543450
AK
1299 ist->frames_decoded++;
1300
9595234c 1301 for (i = 0; i < nb_output_streams; i++) {
2e215267 1302 OutputStream *ost = output_streams[i];
9595234c
AK
1303
1304 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1305 continue;
1306
2e215267 1307 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
9595234c
AK
1308 }
1309
1310 avsubtitle_free(&subtitle);
af8ad892 1311 return ret;
9595234c
AK
1312}
1313
b114f6d4
AK
1314static int send_filter_eof(InputStream *ist)
1315{
1316 int i, ret;
1317 for (i = 0; i < ist->nb_filters; i++) {
1318 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1319 if (ret < 0)
1320 return ret;
1321 }
1322 return 0;
1323}
1324
6291d7e4 1325/* pkt = NULL means EOF (needed to flush decoder buffers) */
9a5e4fbe 1326static void process_input_packet(InputStream *ist, const AVPacket *pkt)
6291d7e4 1327{
ffa0674e 1328 int i;
6291d7e4 1329 int got_output;
6291d7e4 1330 AVPacket avpkt;
6291d7e4 1331
3101bb66 1332 if (ist->next_dts == AV_NOPTS_VALUE)
23576b3f 1333 ist->next_dts = ist->last_dts;
6291d7e4 1334
f929ab05 1335 if (!pkt) {
6291d7e4
AK
1336 /* EOF handling */
1337 av_init_packet(&avpkt);
1338 avpkt.data = NULL;
1339 avpkt.size = 0;
1340 goto handle_eof;
1341 } else {
1342 avpkt = *pkt;
1343 }
1344
7636c8c6 1345 if (pkt->dts != AV_NOPTS_VALUE)
23576b3f 1346 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
6291d7e4 1347
7636c8c6 1348 // while we have more to decode or while the decoder did output something on EOF
2a651b71 1349 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
ffa0674e 1350 int ret = 0;
6291d7e4 1351 handle_eof:
6291d7e4 1352
23576b3f 1353 ist->last_dts = ist->next_dts;
8b0268a8 1354
d1780e01 1355 if (avpkt.size && avpkt.size != pkt->size &&
def97856 1356 !(ist->dec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
e3245b26
AK
1357 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1358 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
8b0268a8
AK
1359 ist->showed_multi_packet_warning = 1;
1360 }
6291d7e4 1361
41776ba9 1362 switch (ist->dec_ctx->codec_type) {
82963f8f 1363 case AVMEDIA_TYPE_AUDIO:
0629f612 1364 ret = decode_audio (ist, &avpkt, &got_output);
82963f8f
AK
1365 break;
1366 case AVMEDIA_TYPE_VIDEO:
0629f612 1367 ret = decode_video (ist, &avpkt, &got_output);
b34856a1
AK
1368 if (avpkt.duration)
1369 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
aba232cf 1370 else if (ist->st->avg_frame_rate.num)
82494835 1371 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
722410ad 1372 AV_TIME_BASE_Q);
557d4c4e 1373 else if (ist->dec_ctx->framerate.num != 0) {
b34856a1 1374 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
41776ba9 1375 ist->dec_ctx->ticks_per_frame;
557d4c4e 1376 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
b34856a1 1377 }
82963f8f
AK
1378 break;
1379 case AVMEDIA_TYPE_SUBTITLE:
1380 ret = transcode_subtitles(ist, &avpkt, &got_output);
1381 break;
78162b4e 1382 default:
9a5e4fbe
AK
1383 return;
1384 }
1385
1386 if (ret < 0) {
1387 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1388 ist->file_index, ist->st->index);
1389 if (exit_on_error)
1390 exit_program(1);
1391 break;
78162b4e 1392 }
6291d7e4 1393
aa38cff2
JG
1394 // touch data and size only if not EOF
1395 if (pkt) {
1396 avpkt.data += ret;
1397 avpkt.size -= ret;
1398 }
82963f8f 1399 if (!got_output) {
af8ad892 1400 continue;
82963f8f 1401 }
6291d7e4 1402 }
6291d7e4 1403
b114f6d4
AK
1404 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1405 if (!pkt && ist->decoding_needed) {
1406 int ret = send_filter_eof(ist);
1407 if (ret < 0) {
1408 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1409 exit_program(1);
1410 }
1411 }
1412
7204ec1a 1413 /* handle stream copy */
2a651b71 1414 if (!ist->decoding_needed) {
23576b3f 1415 ist->last_dts = ist->next_dts;
41776ba9 1416 switch (ist->dec_ctx->codec_type) {
2a651b71 1417 case AVMEDIA_TYPE_AUDIO:
41776ba9
AK
1418 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1419 ist->dec_ctx->sample_rate;
2a651b71
AK
1420 break;
1421 case AVMEDIA_TYPE_VIDEO:
557d4c4e 1422 if (ist->dec_ctx->framerate.num != 0) {
41776ba9 1423 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
3101bb66 1424 ist->next_dts += ((int64_t)AV_TIME_BASE *
557d4c4e
AK
1425 ist->dec_ctx->framerate.den * ticks) /
1426 ist->dec_ctx->framerate.num;
2a651b71
AK
1427 }
1428 break;
1429 }
1430 }
ea9367e9 1431 for (i = 0; pkt && i < nb_output_streams; i++) {
2e215267 1432 OutputStream *ost = output_streams[i];
7204ec1a
AK
1433
1434 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1435 continue;
1436
1437 do_streamcopy(ist, ost, pkt);
1438 }
1439
9a5e4fbe 1440 return;
6291d7e4
AK
1441}
1442
ea9367e9 1443static void print_sdp(void)
6291d7e4 1444{
a23abaf3 1445 char sdp[16384];
af70aa45 1446 int i;
ea9367e9 1447 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
af70aa45
AK
1448
1449 if (!avc)
636ced8e 1450 exit_program(1);
ea9367e9 1451 for (i = 0; i < nb_output_files; i++)
2e215267 1452 avc[i] = output_files[i]->ctx;
6291d7e4 1453
ea9367e9 1454 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
6291d7e4
AK
1455 printf("SDP:\n%s\n", sdp);
1456 fflush(stdout);
af70aa45 1457 av_freep(&avc);
6291d7e4
AK
1458}
1459
07fd0a22
AK
1460static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1461{
1462 int i;
1463 for (i = 0; hwaccels[i].name; i++)
1464 if (hwaccels[i].pix_fmt == pix_fmt)
1465 return &hwaccels[i];
1466 return NULL;
1467}
1468
1469static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1470{
1471 InputStream *ist = s->opaque;
1472 const enum AVPixelFormat *p;
1473 int ret;
1474
1475 for (p = pix_fmts; *p != -1; p++) {
1476 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1477 const HWAccel *hwaccel;
1478
1479 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1480 break;
1481
1482 hwaccel = get_hwaccel(*p);
1483 if (!hwaccel ||
1484 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1485 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1486 continue;
1487
1488 ret = hwaccel->init(s);
1489 if (ret < 0) {
1490 if (ist->hwaccel_id == hwaccel->id) {
1491 av_log(NULL, AV_LOG_FATAL,
1492 "%s hwaccel requested for input stream #%d:%d, "
1493 "but cannot be initialized.\n", hwaccel->name,
1494 ist->file_index, ist->st->index);
dc7536ca 1495 return AV_PIX_FMT_NONE;
07fd0a22
AK
1496 }
1497 continue;
1498 }
1499 ist->active_hwaccel_id = hwaccel->id;
1500 ist->hwaccel_pix_fmt = *p;
1501 break;
1502 }
1503
1504 return *p;
1505}
1506
1507static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1508{
1509 InputStream *ist = s->opaque;
1510
1511 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1512 return ist->hwaccel_get_buffer(s, frame, flags);
1513
1514 return avcodec_default_get_buffer2(s, frame, flags);
1515}
1516
ea9367e9 1517static int init_input_stream(int ist_index, char *error, int error_len)
630902a1 1518{
56c2f377 1519 int ret;
2e215267 1520 InputStream *ist = input_streams[ist_index];
630902a1
AK
1521 if (ist->decoding_needed) {
1522 AVCodec *codec = ist->dec;
630902a1 1523 if (!codec) {
9a414d89 1524 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
41776ba9 1525 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
630902a1
AK
1526 return AVERROR(EINVAL);
1527 }
1528
41776ba9
AK
1529 ist->dec_ctx->opaque = ist;
1530 ist->dec_ctx->get_format = get_format;
1531 ist->dec_ctx->get_buffer2 = get_buffer;
1532 ist->dec_ctx->thread_safe_callbacks = 1;
07fd0a22 1533
41776ba9 1534 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
64dca32c 1535
f3a6ad22
AK
1536 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1537 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
41776ba9 1538 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
42cc6cef 1539 char errbuf[128];
c854102d
NC
1540 if (ret == AVERROR_EXPERIMENTAL)
1541 abort_codec_experimental(codec, 0);
42cc6cef
LB
1542
1543 av_strerror(ret, errbuf, sizeof(errbuf));
1544
1545 snprintf(error, error_len,
1546 "Error while opening decoder for input stream "
1547 "#%d:%d : %s",
1548 ist->file_index, ist->st->index, errbuf);
c854102d 1549 return ret;
630902a1 1550 }
f3a6ad22 1551 assert_avoptions(ist->decoder_opts);
630902a1
AK
1552 }
1553
41776ba9 1554 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 1555 ist->next_dts = AV_NOPTS_VALUE;
630902a1 1556 init_pts_correction(&ist->pts_ctx);
630902a1
AK
1557
1558 return 0;
1559}
1560
3b266da3
AK
1561static InputStream *get_input_stream(OutputStream *ost)
1562{
1563 if (ost->source_index >= 0)
1564 return input_streams[ost->source_index];
1565
1566 if (ost->filter) {
1567 FilterGraph *fg = ost->filter->graph;
1568 int i;
1569
1570 for (i = 0; i < fg->nb_inputs; i++)
38313626 1571 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
3b266da3
AK
1572 return fg->inputs[i]->ist;
1573 }
1574
1575 return NULL;
1576}
1577
ab7b0389
AK
1578static int init_output_stream(OutputStream *ost, char *error, int error_len)
1579{
1580 int ret = 0;
1581
1582 if (ost->encoding_needed) {
1583 AVCodec *codec = ost->enc;
1584 AVCodecContext *dec = NULL;
1585 InputStream *ist;
1586
1587 if ((ist = get_input_stream(ost)))
1588 dec = ist->dec_ctx;
1589 if (dec && dec->subtitle_header) {
1590 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1591 if (!ost->enc_ctx->subtitle_header)
1592 return AVERROR(ENOMEM);
1593 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1594 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1595 }
1596 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1597 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
ab7b0389
AK
1598
1599 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1600 if (ret == AVERROR_EXPERIMENTAL)
1601 abort_codec_experimental(codec, 1);
1602 snprintf(error, error_len,
1603 "Error while opening encoder for output stream #%d:%d - "
1604 "maybe incorrect parameters such as bit_rate, rate, width or height",
1605 ost->file_index, ost->index);
1606 return ret;
1607 }
1608 assert_avoptions(ost->encoder_opts);
1609 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1610 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1611 "It takes bits/s as argument, not kbits/s\n");
1612
1613 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1614 if (ret < 0) {
1615 av_log(NULL, AV_LOG_FATAL,
1616 "Error initializing the output stream codec context.\n");
1617 exit_program(1);
1618 }
1619
1620 ost->st->time_base = ost->enc_ctx->time_base;
1621 } else {
1622 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1623 if (ret < 0)
1624 return ret;
1625 ost->st->time_base = ost->st->codec->time_base;
1626 }
1627
1628 return ret;
1629}
1630
19ad5673
AK
1631static void parse_forced_key_frames(char *kf, OutputStream *ost,
1632 AVCodecContext *avctx)
1633{
1634 char *p;
1635 int n = 1, i;
1636 int64_t t;
1637
1638 for (p = kf; *p; p++)
1639 if (*p == ',')
1640 n++;
1641 ost->forced_kf_count = n;
1642 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1643 if (!ost->forced_kf_pts) {
1644 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
636ced8e 1645 exit_program(1);
19ad5673 1646 }
4c679750
RD
1647
1648 p = kf;
19ad5673 1649 for (i = 0; i < n; i++) {
4c679750
RD
1650 char *next = strchr(p, ',');
1651
1652 if (next)
1653 *next++ = 0;
1654
19ad5673
AK
1655 t = parse_time_or_die("force_key_frames", p, 1);
1656 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
4c679750
RD
1657
1658 p = next;
19ad5673
AK
1659 }
1660}
1661
6656370b
AK
1662static void set_encoder_id(OutputFile *of, OutputStream *ost)
1663{
1664 AVDictionaryEntry *e;
1665
1666 uint8_t *encoder_string;
1667 int encoder_string_len;
1668 int format_flags = 0;
1669
1670 e = av_dict_get(of->opts, "fflags", NULL, 0);
1671 if (e) {
1672 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1673 if (!o)
1674 return;
1675 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1676 }
1677
1678 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1679 encoder_string = av_mallocz(encoder_string_len);
1680 if (!encoder_string)
1681 exit_program(1);
1682
1683 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1684 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1685 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1686 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1687 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1688}
1689
ea9367e9 1690static int transcode_init(void)
6291d7e4 1691{
2c474ddb 1692 int ret = 0, i, j, k;
1bb77e51 1693 AVFormatContext *oc;
4288e031 1694 OutputStream *ost;
6291d7e4
AK
1695 InputStream *ist;
1696 char error[1024];
1697 int want_sdp = 1;
b0c9e8e0 1698
f4805328
AK
1699 /* init framerate emulation */
1700 for (i = 0; i < nb_input_files; i++) {
2e215267 1701 InputFile *ifile = input_files[i];
f4805328
AK
1702 if (ifile->rate_emu)
1703 for (j = 0; j < ifile->nb_streams; j++)
d0c09302 1704 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
f4805328 1705 }
6291d7e4 1706
6291d7e4 1707 /* for each output stream, we compute the right encoding parameters */
4288e031 1708 for (i = 0; i < nb_output_streams; i++) {
65ed9e75 1709 AVCodecContext *enc_ctx;
650a5206 1710 AVCodecContext *dec_ctx = NULL;
2e215267
AK
1711 ost = output_streams[i];
1712 oc = output_files[ost->file_index]->ctx;
3b266da3 1713 ist = get_input_stream(ost);
6291d7e4 1714
4dbc6cee
AK
1715 if (ost->attachment_filename)
1716 continue;
1717
3892bdab 1718 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
6291d7e4 1719
3b266da3 1720 if (ist) {
41776ba9 1721 dec_ctx = ist->dec_ctx;
3b266da3
AK
1722
1723 ost->st->disposition = ist->st->disposition;
65ed9e75
AK
1724 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1725 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
3b266da3 1726 }
6291d7e4 1727
3d813e4c 1728 if (ost->stream_copy) {
538bf767 1729 AVRational sar;
8c4022ac
AK
1730 uint64_t extra_size;
1731
1732 av_assert0(ist && !ost->filter);
1733
059a9348 1734 extra_size = (uint64_t)dec_ctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
6291d7e4 1735
e6d2b737 1736 if (extra_size > INT_MAX) {
eaf2d37a 1737 return AVERROR(EINVAL);
e6d2b737 1738 }
6291d7e4
AK
1739
1740 /* if stream_copy is selected, no need to decode or encode */
65ed9e75
AK
1741 enc_ctx->codec_id = dec_ctx->codec_id;
1742 enc_ctx->codec_type = dec_ctx->codec_type;
6291d7e4 1743
65ed9e75 1744 if (!enc_ctx->codec_tag) {
03f30c83 1745 if (!oc->oformat->codec_tag ||
65ed9e75 1746 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
650a5206 1747 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
65ed9e75 1748 enc_ctx->codec_tag = dec_ctx->codec_tag;
6291d7e4
AK
1749 }
1750
65ed9e75
AK
1751 enc_ctx->bit_rate = dec_ctx->bit_rate;
1752 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1753 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1754 enc_ctx->field_order = dec_ctx->field_order;
1755 enc_ctx->extradata = av_mallocz(extra_size);
1756 if (!enc_ctx->extradata) {
eaf2d37a 1757 return AVERROR(ENOMEM);
e6d2b737 1758 }
65ed9e75
AK
1759 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1760 enc_ctx->extradata_size = dec_ctx->extradata_size;
7bb3e625 1761 if (!copy_tb) {
65ed9e75
AK
1762 enc_ctx->time_base = dec_ctx->time_base;
1763 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1764 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1765 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
03f30c83 1766 } else
65ed9e75 1767 enc_ctx->time_base = ist->st->time_base;
03f30c83 1768
88b32673
AK
1769 if (ist->st->nb_side_data) {
1770 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1771 sizeof(*ist->st->side_data));
1772 if (!ost->st->side_data)
1773 return AVERROR(ENOMEM);
1774
1775 for (j = 0; j < ist->st->nb_side_data; j++) {
1776 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1777 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1778
1779 sd_dst->data = av_malloc(sd_src->size);
1780 if (!sd_dst->data)
1781 return AVERROR(ENOMEM);
1782 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1783 sd_dst->size = sd_src->size;
1784 sd_dst->type = sd_src->type;
1785 ost->st->nb_side_data++;
1786 }
1787 }
1788
65ed9e75 1789 ost->parser = av_parser_init(enc_ctx->codec_id);
c872d310 1790
65ed9e75 1791 switch (enc_ctx->codec_type) {
6291d7e4 1792 case AVMEDIA_TYPE_AUDIO:
7636c8c6 1793 if (audio_volume != 256) {
e3245b26 1794 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
636ced8e 1795 exit_program(1);
6291d7e4 1796 }
65ed9e75
AK
1797 enc_ctx->channel_layout = dec_ctx->channel_layout;
1798 enc_ctx->sample_rate = dec_ctx->sample_rate;
1799 enc_ctx->channels = dec_ctx->channels;
1800 enc_ctx->frame_size = dec_ctx->frame_size;
1801 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1802 enc_ctx->block_align = dec_ctx->block_align;
6291d7e4
AK
1803 break;
1804 case AVMEDIA_TYPE_VIDEO:
65ed9e75
AK
1805 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1806 enc_ctx->width = dec_ctx->width;
1807 enc_ctx->height = dec_ctx->height;
1808 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
538bf767 1809 if (ost->frame_aspect_ratio)
65ed9e75 1810 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
538bf767
AK
1811 else if (ist->st->sample_aspect_ratio.num)
1812 sar = ist->st->sample_aspect_ratio;
1813 else
650a5206 1814 sar = dec_ctx->sample_aspect_ratio;
65ed9e75 1815 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
6291d7e4
AK
1816 break;
1817 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75
AK
1818 enc_ctx->width = dec_ctx->width;
1819 enc_ctx->height = dec_ctx->height;
6291d7e4
AK
1820 break;
1821 case AVMEDIA_TYPE_DATA:
3ccd1580 1822 case AVMEDIA_TYPE_ATTACHMENT:
6291d7e4
AK
1823 break;
1824 default:
1825 abort();
1826 }
1827 } else {
2994913d
AK
1828 if (!ost->enc) {
1829 /* should only happen when a default codec is not present. */
1830 snprintf(error, sizeof(error), "Automatic encoder selection "
1831 "failed for output stream #%d:%d. Default encoder for "
1832 "format %s is probably disabled. Please choose an "
1833 "encoder manually.\n", ost->file_index, ost->index,
1834 oc->oformat->name);
1835 ret = AVERROR(EINVAL);
1836 goto dump_format;
1837 }
03f30c83 1838
6656370b
AK
1839 set_encoder_id(output_files[ost->file_index], ost);
1840
74b961db
AK
1841 /*
1842 * We want CFR output if and only if one of those is true:
1843 * 1) user specified output framerate with -r
1844 * 2) user specified -vsync cfr
1845 * 3) output format is CFR and the user didn't force vsync to
1846 * something else than CFR
1847 *
1848 * in such a case, set ost->frame_rate
1849 */
65ed9e75 1850 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
74b961db
AK
1851 !ost->frame_rate.num && ist &&
1852 (video_sync_method == VSYNC_CFR ||
1853 (video_sync_method == VSYNC_AUTO &&
1854 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2ce8bca5
AK
1855 if (ist->framerate.num)
1856 ost->frame_rate = ist->framerate;
1857 else if (ist->st->avg_frame_rate.num)
1858 ost->frame_rate = ist->st->avg_frame_rate;
1859 else {
1860 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1861 "for the output stream #%d:%d, but no information "
1862 "about the input framerate is available. Falling "
1863 "back to a default value of 25fps. Use the -r option "
1864 "if you want a different framerate.\n",
1865 ost->file_index, ost->index);
1866 ost->frame_rate = (AVRational){ 25, 1 };
1867 }
44b0b85f 1868
74b961db
AK
1869 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1870 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1871 ost->frame_rate = ost->enc->supported_framerates[idx];
1872 }
1873 }
1874
369cb092 1875 if (!ost->filter &&
65ed9e75
AK
1876 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1877 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
3b266da3
AK
1878 FilterGraph *fg;
1879 fg = init_simple_filtergraph(ist, ost);
8daf21d5 1880 if (configure_filtergraph(fg)) {
3b266da3 1881 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
636ced8e 1882 exit_program(1);
3b266da3 1883 }
369cb092 1884 }
3b266da3 1885
65ed9e75 1886 switch (enc_ctx->codec_type) {
369cb092 1887 case AVMEDIA_TYPE_AUDIO:
65ed9e75
AK
1888 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1889 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1890 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1891 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1892 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
369cb092
AK
1893 break;
1894 case AVMEDIA_TYPE_VIDEO:
65ed9e75 1895 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
6291d7e4 1896
65ed9e75
AK
1897 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1898 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1899 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3b266da3 1900 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
65ed9e75 1901 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
3b266da3 1902 ost->filter->filter->inputs[0]->sample_aspect_ratio;
65ed9e75 1903 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
b7327887 1904
93afb6c9
AK
1905 ost->st->avg_frame_rate = ost->frame_rate;
1906
650a5206 1907 if (dec_ctx &&
65ed9e75
AK
1908 (enc_ctx->width != dec_ctx->width ||
1909 enc_ctx->height != dec_ctx->height ||
1910 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1911 enc_ctx->bits_per_raw_sample = 0;
b7327887
AK
1912 }
1913
19ad5673
AK
1914 if (ost->forced_keyframes)
1915 parse_forced_key_frames(ost->forced_keyframes, ost,
38313626 1916 ost->enc_ctx);
6291d7e4
AK
1917 break;
1918 case AVMEDIA_TYPE_SUBTITLE:
65ed9e75 1919 enc_ctx->time_base = (AVRational){1, 1000};
6291d7e4
AK
1920 break;
1921 default:
1922 abort();
1923 break;
1924 }
6291d7e4 1925 }
6291d7e4
AK
1926 }
1927
1928 /* open each encoder */
4288e031 1929 for (i = 0; i < nb_output_streams; i++) {
ab7b0389
AK
1930 ret = init_output_stream(output_streams[i], error, sizeof(error));
1931 if (ret < 0)
1932 goto dump_format;
6291d7e4
AK
1933 }
1934
630902a1
AK
1935 /* init input streams */
1936 for (i = 0; i < nb_input_streams; i++)
ea9367e9 1937 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
630902a1 1938 goto dump_format;
6291d7e4 1939
2c474ddb
AK
1940 /* discard unused programs */
1941 for (i = 0; i < nb_input_files; i++) {
2e215267 1942 InputFile *ifile = input_files[i];
2c474ddb
AK
1943 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1944 AVProgram *p = ifile->ctx->programs[j];
1945 int discard = AVDISCARD_ALL;
1946
1947 for (k = 0; k < p->nb_stream_indexes; k++)
2e215267 1948 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2c474ddb
AK
1949 discard = AVDISCARD_DEFAULT;
1950 break;
1951 }
1952 p->discard = discard;
1953 }
1954 }
1955
6291d7e4 1956 /* open files and write file headers */
af70aa45 1957 for (i = 0; i < nb_output_files; i++) {
2e215267 1958 oc = output_files[i]->ctx;
1bb77e51 1959 oc->interrupt_callback = int_cb;
a1a6cdc2
MS
1960 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1961 char errbuf[128];
1e340af8
LB
1962 av_strerror(ret, errbuf, sizeof(errbuf));
1963 snprintf(error, sizeof(error),
1964 "Could not write header for output file #%d "
1965 "(incorrect codec parameters ?): %s",
1966 i, errbuf);
6291d7e4
AK
1967 ret = AVERROR(EINVAL);
1968 goto dump_format;
1969 }
2e215267 1970 assert_avoptions(output_files[i]->opts);
1bb77e51 1971 if (strcmp(oc->oformat->name, "rtp")) {
6291d7e4
AK
1972 want_sdp = 0;
1973 }
1974 }
1975
1976 dump_format:
1977 /* dump the file output parameters - cannot be done before in case
1978 of stream copy */
03f30c83 1979 for (i = 0; i < nb_output_files; i++) {
2e215267 1980 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
6291d7e4
AK
1981 }
1982
1983 /* dump the stream mapping */
e3245b26 1984 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3b266da3
AK
1985 for (i = 0; i < nb_input_streams; i++) {
1986 ist = input_streams[i];
1987
1988 for (j = 0; j < ist->nb_filters; j++) {
3b266da3
AK
1989 if (ist->filters[j]->graph->graph_desc) {
1990 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1991 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
cf6c38c6 1992 ist->filters[j]->name);
3b266da3
AK
1993 if (nb_filtergraphs > 1)
1994 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1995 av_log(NULL, AV_LOG_INFO, "\n");
1996 }
1997 }
1998 }
1999
e3245b26 2000 for (i = 0; i < nb_output_streams; i++) {
2e215267 2001 ost = output_streams[i];
4dbc6cee
AK
2002
2003 if (ost->attachment_filename) {
2004 /* an attached file */
2005 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2006 ost->attachment_filename, ost->file_index, ost->index);
2007 continue;
2008 }
3b266da3
AK
2009
2010 if (ost->filter && ost->filter->graph->graph_desc) {
2011 /* output from a complex graph */
cf6c38c6 2012 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3b266da3
AK
2013 if (nb_filtergraphs > 1)
2014 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2015
2016 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2017 ost->index, ost->enc ? ost->enc->name : "?");
2018 continue;
2019 }
2020
9a414d89 2021 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2e215267
AK
2022 input_streams[ost->source_index]->file_index,
2023 input_streams[ost->source_index]->st->index,
e3245b26
AK
2024 ost->file_index,
2025 ost->index);
2e215267 2026 if (ost->sync_ist != input_streams[ost->source_index])
9a414d89 2027 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
e3245b26
AK
2028 ost->sync_ist->file_index,
2029 ost->sync_ist->st->index);
3d813e4c 2030 if (ost->stream_copy)
e3245b26 2031 av_log(NULL, AV_LOG_INFO, " (copy)");
39ec5e1c
LB
2032 else {
2033 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2034 const AVCodec *out_codec = ost->enc;
2035 const char *decoder_name = "?";
2036 const char *in_codec_name = "?";
2037 const char *encoder_name = "?";
2038 const char *out_codec_name = "?";
aa1a1b24 2039 const AVCodecDescriptor *desc;
39ec5e1c
LB
2040
2041 if (in_codec) {
2042 decoder_name = in_codec->name;
aa1a1b24
HS
2043 desc = avcodec_descriptor_get(in_codec->id);
2044 if (desc)
2045 in_codec_name = desc->name;
39ec5e1c
LB
2046 if (!strcmp(decoder_name, in_codec_name))
2047 decoder_name = "native";
2048 }
2049
2050 if (out_codec) {
2051 encoder_name = out_codec->name;
aa1a1b24
HS
2052 desc = avcodec_descriptor_get(out_codec->id);
2053 if (desc)
2054 out_codec_name = desc->name;
71d6551e 2055 if (!strcmp(encoder_name, out_codec_name))
39ec5e1c
LB
2056 encoder_name = "native";
2057 }
2058
2059 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2060 in_codec_name, decoder_name,
2061 out_codec_name, encoder_name);
2062 }
e3245b26 2063 av_log(NULL, AV_LOG_INFO, "\n");
6291d7e4
AK
2064 }
2065
2066 if (ret) {
e3245b26 2067 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
eaf2d37a 2068 return ret;
6291d7e4
AK
2069 }
2070
2071 if (want_sdp) {
ea9367e9 2072 print_sdp();
6291d7e4
AK
2073 }
2074
eaf2d37a
AC
2075 return 0;
2076}
2077
c1ef30a6 2078/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2f51ec2b
AK
2079static int need_output(void)
2080{
2081 int i;
2082
2083 for (i = 0; i < nb_output_streams; i++) {
2084 OutputStream *ost = output_streams[i];
2085 OutputFile *of = output_files[ost->file_index];
2086 AVFormatContext *os = output_files[ost->file_index]->ctx;
2087
57d24225 2088 if (ost->finished ||
2f51ec2b
AK
2089 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2090 continue;
e58b75f7 2091 if (ost->frame_number >= ost->max_frames) {
2f51ec2b
AK
2092 int j;
2093 for (j = 0; j < of->ctx->nb_streams; j++)
57d24225 2094 output_streams[of->ost_index + j]->finished = 1;
2f51ec2b
AK
2095 continue;
2096 }
2097
2098 return 1;
2099 }
2100
2101 return 0;
2102}
2103
83916029 2104static InputFile *select_input_file(void)
a508e7a1 2105{
83916029 2106 InputFile *ifile = NULL;
a508e7a1 2107 int64_t ipts_min = INT64_MAX;
83916029 2108 int i;
a508e7a1
AK
2109
2110 for (i = 0; i < nb_input_streams; i++) {
2111 InputStream *ist = input_streams[i];
2112 int64_t ipts = ist->last_dts;
2113
0b26ef42 2114 if (ist->discard || input_files[ist->file_index]->eagain)
a508e7a1
AK
2115 continue;
2116 if (!input_files[ist->file_index]->eof_reached) {
2117 if (ipts < ipts_min) {
2118 ipts_min = ipts;
83916029 2119 ifile = input_files[ist->file_index];
a508e7a1
AK
2120 }
2121 }
2122 }
2123
83916029 2124 return ifile;
a508e7a1
AK
2125}
2126
47b812e9 2127#if HAVE_PTHREADS
5db5169e
AK
2128static void *input_thread(void *arg)
2129{
2130 InputFile *f = arg;
2131 int ret = 0;
2132
2133 while (!transcoding_finished && ret >= 0) {
2134 AVPacket pkt;
2135 ret = av_read_frame(f->ctx, &pkt);
2136
2137 if (ret == AVERROR(EAGAIN)) {
896bb0d7 2138 av_usleep(10000);
5db5169e
AK
2139 ret = 0;
2140 continue;
2141 } else if (ret < 0)
2142 break;
2143
2144 pthread_mutex_lock(&f->fifo_lock);
2145 while (!av_fifo_space(f->fifo))
2146 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2147
2148 av_dup_packet(&pkt);
2149 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2150
2151 pthread_mutex_unlock(&f->fifo_lock);
2152 }
2153
2154 f->finished = 1;
2155 return NULL;
2156}
2157
2158static void free_input_threads(void)
2159{
2160 int i;
2161
2162 if (nb_input_files == 1)
2163 return;
2164
2165 transcoding_finished = 1;
2166
2167 for (i = 0; i < nb_input_files; i++) {
2168 InputFile *f = input_files[i];
2169 AVPacket pkt;
2170
9034b0ed 2171 if (!f->fifo || f->joined)
5db5169e
AK
2172 continue;
2173
2174 pthread_mutex_lock(&f->fifo_lock);
2175 while (av_fifo_size(f->fifo)) {
2176 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2177 av_free_packet(&pkt);
2178 }
2179 pthread_cond_signal(&f->fifo_cond);
2180 pthread_mutex_unlock(&f->fifo_lock);
2181
2182 pthread_join(f->thread, NULL);
2183 f->joined = 1;
2184
2185 while (av_fifo_size(f->fifo)) {
2186 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2187 av_free_packet(&pkt);
2188 }
2189 av_fifo_free(f->fifo);
2190 }
2191}
2192
2193static int init_input_threads(void)
2194{
2195 int i, ret;
2196
2197 if (nb_input_files == 1)
2198 return 0;
2199
2200 for (i = 0; i < nb_input_files; i++) {
2201 InputFile *f = input_files[i];
2202
2203 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2204 return AVERROR(ENOMEM);
2205
2206 pthread_mutex_init(&f->fifo_lock, NULL);
2207 pthread_cond_init (&f->fifo_cond, NULL);
2208
2209 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2210 return AVERROR(ret);
2211 }
2212 return 0;
2213}
2214
2215static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2216{
2217 int ret = 0;
2218
2219 pthread_mutex_lock(&f->fifo_lock);
2220
2221 if (av_fifo_size(f->fifo)) {
2222 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2223 pthread_cond_signal(&f->fifo_cond);
2224 } else {
2225 if (f->finished)
2226 ret = AVERROR_EOF;
2227 else
2228 ret = AVERROR(EAGAIN);
2229 }
2230
2231 pthread_mutex_unlock(&f->fifo_lock);
2232
2233 return ret;
2234}
2235#endif
2236
2237static int get_input_packet(InputFile *f, AVPacket *pkt)
2238{
b4a5a292
AK
2239 if (f->rate_emu) {
2240 int i;
2241 for (i = 0; i < f->nb_streams; i++) {
2242 InputStream *ist = input_streams[f->ist_index + i];
2243 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
d0c09302 2244 int64_t now = av_gettime_relative() - ist->start;
b4a5a292
AK
2245 if (pts > now)
2246 return AVERROR(EAGAIN);
2247 }
2248 }
2249
47b812e9 2250#if HAVE_PTHREADS
5db5169e
AK
2251 if (nb_input_files > 1)
2252 return get_input_packet_mt(f, pkt);
2253#endif
2254 return av_read_frame(f->ctx, pkt);
2255}
2256
0b26ef42
AK
2257static int got_eagain(void)
2258{
2259 int i;
2260 for (i = 0; i < nb_input_files; i++)
2261 if (input_files[i]->eagain)
2262 return 1;
2263 return 0;
2264}
2265
2266static void reset_eagain(void)
2267{
2268 int i;
2269 for (i = 0; i < nb_input_files; i++)
2270 input_files[i]->eagain = 0;
2271}
2272
c1ef30a6 2273/*
0c00fd80
AK
2274 * Read one packet from an input file and send it for
2275 * - decoding -> lavfi (audio/video)
2276 * - decoding -> encoding -> muxing (subtitles)
2277 * - muxing (streamcopy)
2278 *
c1ef30a6 2279 * Return
0c00fd80
AK
2280 * - 0 -- one packet was read and processed
2281 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2282 * this function should be called again
2283 * - AVERROR_EOF -- this function should not be called again
2284 */
2285static int process_input(void)
2286{
2287 InputFile *ifile;
2288 AVFormatContext *is;
2289 InputStream *ist;
2290 AVPacket pkt;
2291 int ret, i, j;
2292
2293 /* select the stream that we must read now */
2294 ifile = select_input_file();
2295 /* if none, if is finished */
2296 if (!ifile) {
2297 if (got_eagain()) {
2298 reset_eagain();
2299 av_usleep(10000);
2300 return AVERROR(EAGAIN);
2301 }
2302 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2303 return AVERROR_EOF;
2304 }
2305
2306 is = ifile->ctx;
2307 ret = get_input_packet(ifile, &pkt);
2308
2309 if (ret == AVERROR(EAGAIN)) {
2310 ifile->eagain = 1;
2311 return ret;
2312 }
2313 if (ret < 0) {
2314 if (ret != AVERROR_EOF) {
2315 print_error(is->filename, ret);
2316 if (exit_on_error)
636ced8e 2317 exit_program(1);
0c00fd80
AK
2318 }
2319 ifile->eof_reached = 1;
2320
2321 for (i = 0; i < ifile->nb_streams; i++) {
2322 ist = input_streams[ifile->ist_index + i];
2323 if (ist->decoding_needed)
aa51b049 2324 process_input_packet(ist, NULL);
0c00fd80
AK
2325
2326 /* mark all outputs that don't go through lavfi as finished */
2327 for (j = 0; j < nb_output_streams; j++) {
2328 OutputStream *ost = output_streams[j];
2329
2330 if (ost->source_index == ifile->ist_index + i &&
2331 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
48e50921 2332 finish_output_stream(ost);
0c00fd80
AK
2333 }
2334 }
2335
3c0df905 2336 return AVERROR(EAGAIN);
0c00fd80
AK
2337 }
2338
2339 reset_eagain();
2340
2341 if (do_pkt_dump) {
2342 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2343 is->streams[pkt.stream_index]);
2344 }
2345 /* the following test is needed in case new streams appear
2346 dynamically in stream : we ignore them */
2347 if (pkt.stream_index >= ifile->nb_streams)
2348 goto discard_packet;
2349
2350 ist = input_streams[ifile->ist_index + pkt.stream_index];
47543450
AK
2351
2352 ist->data_size += pkt.size;
59444c76 2353 ist->nb_packets++;
47543450 2354
0c00fd80
AK
2355 if (ist->discard)
2356 goto discard_packet;
2357
59444c76
AK
2358 /* add the stream-global side data to the first packet */
2359 if (ist->nb_packets == 1)
2360 for (i = 0; i < ist->st->nb_side_data; i++) {
2361 AVPacketSideData *src_sd = &ist->st->side_data[i];
2362 uint8_t *dst_data;
2363
2364 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2365 continue;
16302246
MS
2366 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2367 continue;
59444c76
AK
2368
2369 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2370 if (!dst_data)
2371 exit_program(1);
2372
2373 memcpy(dst_data, src_sd->data, src_sd->size);
2374 }
2375
0c00fd80
AK
2376 if (pkt.dts != AV_NOPTS_VALUE)
2377 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2378 if (pkt.pts != AV_NOPTS_VALUE)
2379 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2380
2381 if (pkt.pts != AV_NOPTS_VALUE)
2382 pkt.pts *= ist->ts_scale;
2383 if (pkt.dts != AV_NOPTS_VALUE)
2384 pkt.dts *= ist->ts_scale;
2385
6cfbe1de
LB
2386 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2387 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2388 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
0c00fd80
AK
2389 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2390 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2391 int64_t delta = pkt_dts - ist->next_dts;
2392
2393 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2394 ifile->ts_offset -= delta;
2395 av_log(NULL, AV_LOG_DEBUG,
2396 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2397 delta, ifile->ts_offset);
2398 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2399 if (pkt.pts != AV_NOPTS_VALUE)
2400 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2401 }
2402 }
2403
9a5e4fbe 2404 process_input_packet(ist, &pkt);
0c00fd80
AK
2405
2406discard_packet:
2407 av_free_packet(&pkt);
2408
2409 return 0;
2410}
2411
eaf2d37a
AC
2412/*
2413 * The following code is the main loop of the file converter
2414 */
ea9367e9 2415static int transcode(void)
eaf2d37a 2416{
0c00fd80
AK
2417 int ret, i, need_input = 1;
2418 AVFormatContext *os;
eaf2d37a
AC
2419 OutputStream *ost;
2420 InputStream *ist;
eaf2d37a
AC
2421 int64_t timer_start;
2422
ea9367e9 2423 ret = transcode_init();
eaf2d37a
AC
2424 if (ret < 0)
2425 goto fail;
2426
e3245b26 2427 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
6291d7e4
AK
2428 term_init();
2429
d0c09302 2430 timer_start = av_gettime_relative();
6291d7e4 2431
47b812e9 2432#if HAVE_PTHREADS
5db5169e
AK
2433 if ((ret = init_input_threads()) < 0)
2434 goto fail;
2435#endif
2436
c0fbf971 2437 while (!received_sigterm) {
3b266da3 2438 /* check if there's any stream where output is still needed */
2f51ec2b
AK
2439 if (!need_output()) {
2440 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3b266da3 2441 break;
2f51ec2b 2442 }
3b266da3 2443
0c00fd80
AK
2444 /* read and process one input packet if needed */
2445 if (need_input) {
2446 ret = process_input();
2447 if (ret == AVERROR_EOF)
2448 need_input = 0;
6291d7e4
AK
2449 }
2450
0c00fd80 2451 ret = poll_filters();
6291d7e4 2452 if (ret < 0) {
22a6d48b 2453 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
6291d7e4 2454 continue;
22a6d48b
LB
2455 } else {
2456 char errbuf[128];
2457 av_strerror(ret, errbuf, sizeof(errbuf));
6291d7e4 2458
22a6d48b
LB
2459 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2460 break;
2461 }
6291d7e4
AK
2462 }
2463
6291d7e4 2464 /* dump report by using the output first video and audio streams */
ea9367e9 2465 print_report(0, timer_start);
6291d7e4 2466 }
47b812e9 2467#if HAVE_PTHREADS
5db5169e
AK
2468 free_input_threads();
2469#endif
6291d7e4
AK
2470
2471 /* at the end of stream, we must flush the decoder buffers */
2472 for (i = 0; i < nb_input_streams; i++) {
2e215267 2473 ist = input_streams[i];
9e8aae44 2474 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
aa51b049 2475 process_input_packet(ist, NULL);
6291d7e4
AK
2476 }
2477 }
560f7774 2478 poll_filters();
ea9367e9 2479 flush_encoders();
6291d7e4
AK
2480
2481 term_exit();
2482
2483 /* write the trailer if needed and close file */
7636c8c6 2484 for (i = 0; i < nb_output_files; i++) {
2e215267 2485 os = output_files[i]->ctx;
6291d7e4
AK
2486 av_write_trailer(os);
2487 }
2488
2489 /* dump report by using the first video and audio streams */
ea9367e9 2490 print_report(1, timer_start);
6291d7e4
AK
2491
2492 /* close each encoder */
4288e031 2493 for (i = 0; i < nb_output_streams; i++) {
2e215267 2494 ost = output_streams[i];
6291d7e4 2495 if (ost->encoding_needed) {
38313626 2496 av_freep(&ost->enc_ctx->stats_in);
6291d7e4 2497 }
6291d7e4
AK
2498 }
2499
2500 /* close each decoder */
2501 for (i = 0; i < nb_input_streams; i++) {
2e215267 2502 ist = input_streams[i];
6291d7e4 2503 if (ist->decoding_needed) {
41776ba9 2504 avcodec_close(ist->dec_ctx);
07fd0a22 2505 if (ist->hwaccel_uninit)
41776ba9 2506 ist->hwaccel_uninit(ist->dec_ctx);
6291d7e4
AK
2507 }
2508 }
2509
2510 /* finished ! */
2511 ret = 0;
2512
2513 fail:
47b812e9 2514#if HAVE_PTHREADS
5db5169e
AK
2515 free_input_threads();
2516#endif
6291d7e4 2517
4288e031
AK
2518 if (output_streams) {
2519 for (i = 0; i < nb_output_streams; i++) {
2e215267 2520 ost = output_streams[i];
6291d7e4 2521 if (ost) {
6291d7e4
AK
2522 if (ost->logfile) {
2523 fclose(ost->logfile);
2524 ost->logfile = NULL;
2525 }
6291d7e4 2526 av_free(ost->forced_kf_pts);
9580818c 2527 av_dict_free(&ost->encoder_opts);
5c7db097 2528 av_dict_free(&ost->resample_opts);
6291d7e4
AK
2529 }
2530 }
6291d7e4
AK
2531 }
2532 return ret;
2533}
2534
f5e66827 2535static int64_t getutime(void)
a2c0b830 2536{
f5e66827
AK
2537#if HAVE_GETRUSAGE
2538 struct rusage rusage;
a2c0b830 2539
f5e66827
AK
2540 getrusage(RUSAGE_SELF, &rusage);
2541 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2542#elif HAVE_GETPROCESSTIMES
2543 HANDLE proc;
2544 FILETIME c, e, k, u;
2545 proc = GetCurrentProcess();
2546 GetProcessTimes(proc, &c, &e, &k, &u);
2547 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2548#else
d0c09302 2549 return av_gettime_relative();
f5e66827 2550#endif
a2c0b830
AK
2551}
2552
f5e66827 2553static int64_t getmaxrss(void)
6291d7e4 2554{
f5e66827
AK
2555#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2556 struct rusage rusage;
2557 getrusage(RUSAGE_SELF, &rusage);
2558 return (int64_t)rusage.ru_maxrss * 1024;
2559#elif HAVE_GETPROCESSMEMORYINFO
2560 HANDLE proc;
2561 PROCESS_MEMORY_COUNTERS memcounters;
2562 proc = GetCurrentProcess();
2563 memcounters.cb = sizeof(memcounters);
2564 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2565 return memcounters.PeakPagefileUsage;
2566#else
6291d7e4 2567 return 0;
f5e66827 2568#endif
6291d7e4
AK
2569}
2570
6291d7e4
AK
2571int main(int argc, char **argv)
2572{
77bd1bc7 2573 int ret;
6291d7e4
AK
2574 int64_t ti;
2575
636ced8e 2576 register_exit(avconv_cleanup);
5e3f9979 2577
6291d7e4 2578 av_log_set_flags(AV_LOG_SKIP_REPEATED);
182cbe43 2579 parse_loglevel(argc, argv, options);
6291d7e4
AK
2580
2581 avcodec_register_all();
2582#if CONFIG_AVDEVICE
2583 avdevice_register_all();
2584#endif
6291d7e4 2585 avfilter_register_all();
6291d7e4 2586 av_register_all();
776f2bb9 2587 avformat_network_init();
6291d7e4 2588
6291d7e4
AK
2589 show_banner();
2590
77bd1bc7
AK
2591 /* parse options and open all input/output files */
2592 ret = avconv_parse_options(argc, argv);
2593 if (ret < 0)
636ced8e 2594 exit_program(1);
6291d7e4 2595
7636c8c6 2596 if (nb_output_files <= 0 && nb_input_files == 0) {
6291d7e4 2597 show_usage();
e3245b26 2598 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
636ced8e 2599 exit_program(1);
6291d7e4
AK
2600 }
2601
2602 /* file converter / grab */
2603 if (nb_output_files <= 0) {
2604 fprintf(stderr, "At least one output file must be specified\n");
636ced8e 2605 exit_program(1);
6291d7e4
AK
2606 }
2607
6291d7e4 2608 ti = getutime();
ea9367e9 2609 if (transcode() < 0)
636ced8e 2610 exit_program(1);
6291d7e4
AK
2611 ti = getutime() - ti;
2612 if (do_benchmark) {
2613 int maxrss = getmaxrss() / 1024;
2614 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2615 }
2616
636ced8e 2617 exit_program(0);
dad09ff9 2618 return 0;
6291d7e4 2619}