mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-15 03:34:56 +00:00
2680 lines
88 KiB
C
2680 lines
88 KiB
C
/*
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* avconv main
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* Copyright (c) 2000-2011 The libav developers.
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <ctype.h>
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#include <string.h>
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#include <math.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <signal.h>
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#include <limits.h>
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#include <stdint.h>
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#include "libavformat/avformat.h"
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#include "libavdevice/avdevice.h"
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#include "libswscale/swscale.h"
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#include "libavresample/avresample.h"
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#include "libavutil/opt.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/fifo.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/dict.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/avstring.h"
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#include "libavutil/libm.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/time.h"
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#include "libavformat/os_support.h"
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# include "libavfilter/avfilter.h"
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# include "libavfilter/buffersrc.h"
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# include "libavfilter/buffersink.h"
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#if HAVE_SYS_RESOURCE_H
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/resource.h>
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#elif HAVE_GETPROCESSTIMES
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#include <windows.h>
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#endif
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#if HAVE_GETPROCESSMEMORYINFO
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#include <windows.h>
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#include <psapi.h>
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#endif
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#if HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#if HAVE_PTHREADS
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#include <pthread.h>
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#endif
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#include <time.h>
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#include "avconv.h"
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#include "cmdutils.h"
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#include "libavutil/avassert.h"
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const char program_name[] = "avconv";
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const int program_birth_year = 2000;
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static FILE *vstats_file;
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static int nb_frames_drop = 0;
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#if HAVE_PTHREADS
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/* signal to input threads that they should exit; set by the main thread */
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static int transcoding_finished;
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#endif
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#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
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InputStream **input_streams = NULL;
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int nb_input_streams = 0;
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InputFile **input_files = NULL;
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int nb_input_files = 0;
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OutputStream **output_streams = NULL;
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int nb_output_streams = 0;
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OutputFile **output_files = NULL;
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int nb_output_files = 0;
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FilterGraph **filtergraphs;
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int nb_filtergraphs;
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static void term_exit(void)
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{
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av_log(NULL, AV_LOG_QUIET, "");
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}
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static volatile int received_sigterm = 0;
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static volatile int received_nb_signals = 0;
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static void
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sigterm_handler(int sig)
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{
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received_sigterm = sig;
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received_nb_signals++;
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term_exit();
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}
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static void term_init(void)
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{
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signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
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signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
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#ifdef SIGXCPU
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signal(SIGXCPU, sigterm_handler);
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#endif
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}
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static int decode_interrupt_cb(void *ctx)
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{
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return received_nb_signals > 1;
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}
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const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
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static void avconv_cleanup(int ret)
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{
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int i, j;
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for (i = 0; i < nb_filtergraphs; i++) {
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FilterGraph *fg = filtergraphs[i];
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avfilter_graph_free(&fg->graph);
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for (j = 0; j < fg->nb_inputs; j++) {
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av_freep(&fg->inputs[j]->name);
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av_freep(&fg->inputs[j]);
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}
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av_freep(&fg->inputs);
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for (j = 0; j < fg->nb_outputs; j++) {
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av_freep(&fg->outputs[j]->name);
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av_freep(&fg->outputs[j]);
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}
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av_freep(&fg->outputs);
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av_freep(&fg->graph_desc);
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av_freep(&filtergraphs[i]);
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}
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av_freep(&filtergraphs);
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/* close files */
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for (i = 0; i < nb_output_files; i++) {
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OutputFile *of = output_files[i];
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AVFormatContext *s = of->ctx;
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if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
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avio_close(s->pb);
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avformat_free_context(s);
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av_dict_free(&of->opts);
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av_freep(&output_files[i]);
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}
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for (i = 0; i < nb_output_streams; i++) {
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OutputStream *ost = output_streams[i];
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AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
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while (bsfc) {
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AVBitStreamFilterContext *next = bsfc->next;
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av_bitstream_filter_close(bsfc);
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bsfc = next;
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}
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ost->bitstream_filters = NULL;
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av_frame_free(&ost->filtered_frame);
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av_parser_close(ost->parser);
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av_freep(&ost->forced_keyframes);
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av_freep(&ost->avfilter);
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av_freep(&ost->logfile_prefix);
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avcodec_free_context(&ost->enc_ctx);
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av_freep(&output_streams[i]);
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}
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for (i = 0; i < nb_input_files; i++) {
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avformat_close_input(&input_files[i]->ctx);
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av_freep(&input_files[i]);
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}
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for (i = 0; i < nb_input_streams; i++) {
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InputStream *ist = input_streams[i];
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av_frame_free(&ist->decoded_frame);
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av_frame_free(&ist->filter_frame);
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av_dict_free(&ist->decoder_opts);
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av_freep(&ist->filters);
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av_freep(&ist->hwaccel_device);
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avcodec_free_context(&ist->dec_ctx);
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av_freep(&input_streams[i]);
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}
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if (vstats_file)
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fclose(vstats_file);
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av_free(vstats_filename);
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av_freep(&input_streams);
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av_freep(&input_files);
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av_freep(&output_streams);
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av_freep(&output_files);
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uninit_opts();
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avformat_network_deinit();
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if (received_sigterm) {
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av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
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(int) received_sigterm);
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exit (255);
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}
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}
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void assert_avoptions(AVDictionary *m)
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{
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AVDictionaryEntry *t;
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if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
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av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
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exit_program(1);
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}
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}
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static void abort_codec_experimental(AVCodec *c, int encoder)
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{
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const char *codec_string = encoder ? "encoder" : "decoder";
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AVCodec *codec;
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av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
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"results.\nAdd '-strict experimental' if you want to use it.\n",
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codec_string, c->name);
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codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
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if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
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av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
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codec_string, codec->name);
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exit_program(1);
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}
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/*
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* Update the requested input sample format based on the output sample format.
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* This is currently only used to request float output from decoders which
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* support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
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* Ideally this will be removed in the future when decoders do not do format
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* conversion and only output in their native format.
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*/
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static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
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AVCodecContext *enc)
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{
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/* if sample formats match or a decoder sample format has already been
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requested, just return */
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if (enc->sample_fmt == dec->sample_fmt ||
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dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
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return;
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/* if decoder supports more than one output format */
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if (dec_codec && dec_codec->sample_fmts &&
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dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
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dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
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const enum AVSampleFormat *p;
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int min_dec = INT_MAX, min_inc = INT_MAX;
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enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
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enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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/* find a matching sample format in the encoder */
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for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
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if (*p == enc->sample_fmt) {
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dec->request_sample_fmt = *p;
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return;
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} else {
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enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
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enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
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int fmt_diff = 32 * abs(dfmt - efmt);
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if (av_sample_fmt_is_planar(*p) !=
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av_sample_fmt_is_planar(enc->sample_fmt))
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fmt_diff++;
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if (dfmt == efmt) {
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min_inc = fmt_diff;
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inc_fmt = *p;
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} else if (dfmt > efmt) {
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if (fmt_diff < min_inc) {
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min_inc = fmt_diff;
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inc_fmt = *p;
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}
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} else {
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if (fmt_diff < min_dec) {
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min_dec = fmt_diff;
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dec_fmt = *p;
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}
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}
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}
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}
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/* if none match, provide the one that matches quality closest */
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dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
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}
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}
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static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
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{
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AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
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AVCodecContext *avctx = ost->enc_ctx;
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int ret;
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/*
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* Audio encoders may split the packets -- #frames in != #packets out.
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* But there is no reordering, so we can limit the number of output packets
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* by simply dropping them here.
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* Counting encoded video frames needs to be done separately because of
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* reordering, see do_video_out()
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*/
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if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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if (ost->frame_number >= ost->max_frames) {
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av_free_packet(pkt);
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return;
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}
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ost->frame_number++;
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}
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while (bsfc) {
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AVPacket new_pkt = *pkt;
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int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
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&new_pkt.data, &new_pkt.size,
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pkt->data, pkt->size,
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pkt->flags & AV_PKT_FLAG_KEY);
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if (a > 0) {
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av_free_packet(pkt);
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new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
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av_buffer_default_free, NULL, 0);
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if (!new_pkt.buf)
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exit_program(1);
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} else if (a < 0) {
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av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
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bsfc->filter->name, pkt->stream_index,
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avctx->codec ? avctx->codec->name : "copy");
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print_error("", a);
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if (exit_on_error)
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exit_program(1);
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}
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*pkt = new_pkt;
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bsfc = bsfc->next;
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}
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if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
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ost->last_mux_dts != AV_NOPTS_VALUE &&
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pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
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av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
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"%d:%d; previous: %"PRId64", current: %"PRId64"; ",
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ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
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if (exit_on_error) {
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av_log(NULL, AV_LOG_FATAL, "aborting.\n");
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exit_program(1);
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}
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av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
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"in incorrect timestamps in the output file.\n",
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ost->last_mux_dts + 1);
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pkt->dts = ost->last_mux_dts + 1;
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts = FFMAX(pkt->pts, pkt->dts);
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}
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ost->last_mux_dts = pkt->dts;
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ost->data_size += pkt->size;
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ost->packets_written++;
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pkt->stream_index = ost->index;
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ret = av_interleaved_write_frame(s, pkt);
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if (ret < 0) {
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print_error("av_interleaved_write_frame()", ret);
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exit_program(1);
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}
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}
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static int check_recording_time(OutputStream *ost)
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{
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OutputFile *of = output_files[ost->file_index];
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if (of->recording_time != INT64_MAX &&
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av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
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AV_TIME_BASE_Q) >= 0) {
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ost->finished = 1;
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return 0;
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}
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return 1;
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}
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static void do_audio_out(AVFormatContext *s, OutputStream *ost,
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AVFrame *frame)
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{
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AVCodecContext *enc = ost->enc_ctx;
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AVPacket pkt;
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int got_packet = 0;
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av_init_packet(&pkt);
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pkt.data = NULL;
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pkt.size = 0;
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if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
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frame->pts = ost->sync_opts;
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ost->sync_opts = frame->pts + frame->nb_samples;
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ost->samples_encoded += frame->nb_samples;
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ost->frames_encoded++;
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if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
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av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
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exit_program(1);
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}
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if (got_packet) {
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av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
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write_frame(s, &pkt, ost);
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}
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}
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static void do_subtitle_out(AVFormatContext *s,
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OutputStream *ost,
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InputStream *ist,
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AVSubtitle *sub,
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int64_t pts)
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{
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static uint8_t *subtitle_out = NULL;
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int subtitle_out_max_size = 1024 * 1024;
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int subtitle_out_size, nb, i;
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AVCodecContext *enc;
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AVPacket pkt;
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if (pts == AV_NOPTS_VALUE) {
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av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
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if (exit_on_error)
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exit_program(1);
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return;
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}
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enc = ost->enc_ctx;
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if (!subtitle_out) {
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subtitle_out = av_malloc(subtitle_out_max_size);
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}
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/* Note: DVB subtitle need one packet to draw them and one other
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packet to clear them */
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/* XXX: signal it in the codec context ? */
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if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
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nb = 2;
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else
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nb = 1;
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for (i = 0; i < nb; i++) {
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ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
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if (!check_recording_time(ost))
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return;
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sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
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// start_display_time is required to be 0
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sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
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sub->end_display_time -= sub->start_display_time;
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sub->start_display_time = 0;
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ost->frames_encoded++;
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subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
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subtitle_out_max_size, sub);
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if (subtitle_out_size < 0) {
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av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
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exit_program(1);
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}
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av_init_packet(&pkt);
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pkt.data = subtitle_out;
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pkt.size = subtitle_out_size;
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pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
|
|
if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
|
|
/* XXX: the pts correction is handled here. Maybe handling
|
|
it in the codec would be better */
|
|
if (i == 0)
|
|
pkt.pts += 90 * sub->start_display_time;
|
|
else
|
|
pkt.pts += 90 * sub->end_display_time;
|
|
}
|
|
write_frame(s, &pkt, ost);
|
|
}
|
|
}
|
|
|
|
static void do_video_out(AVFormatContext *s,
|
|
OutputStream *ost,
|
|
AVFrame *in_picture,
|
|
int *frame_size)
|
|
{
|
|
int ret, format_video_sync;
|
|
AVPacket pkt;
|
|
AVCodecContext *enc = ost->enc_ctx;
|
|
|
|
*frame_size = 0;
|
|
|
|
format_video_sync = video_sync_method;
|
|
if (format_video_sync == VSYNC_AUTO)
|
|
format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
|
|
(s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
|
|
if (format_video_sync != VSYNC_PASSTHROUGH &&
|
|
ost->frame_number &&
|
|
in_picture->pts != AV_NOPTS_VALUE &&
|
|
in_picture->pts < ost->sync_opts) {
|
|
nb_frames_drop++;
|
|
av_log(NULL, AV_LOG_WARNING,
|
|
"*** dropping frame %d from stream %d at ts %"PRId64"\n",
|
|
ost->frame_number, ost->st->index, in_picture->pts);
|
|
return;
|
|
}
|
|
|
|
if (in_picture->pts == AV_NOPTS_VALUE)
|
|
in_picture->pts = ost->sync_opts;
|
|
ost->sync_opts = in_picture->pts;
|
|
|
|
|
|
if (!ost->frame_number)
|
|
ost->first_pts = in_picture->pts;
|
|
|
|
av_init_packet(&pkt);
|
|
pkt.data = NULL;
|
|
pkt.size = 0;
|
|
|
|
if (ost->frame_number >= ost->max_frames)
|
|
return;
|
|
|
|
if (s->oformat->flags & AVFMT_RAWPICTURE &&
|
|
enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
|
|
/* raw pictures are written as AVPicture structure to
|
|
avoid any copies. We support temporarily the older
|
|
method. */
|
|
enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
|
|
enc->coded_frame->top_field_first = in_picture->top_field_first;
|
|
pkt.data = (uint8_t *)in_picture;
|
|
pkt.size = sizeof(AVPicture);
|
|
pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
|
|
pkt.flags |= AV_PKT_FLAG_KEY;
|
|
|
|
write_frame(s, &pkt, ost);
|
|
} else {
|
|
int got_packet;
|
|
|
|
if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
|
|
ost->top_field_first >= 0)
|
|
in_picture->top_field_first = !!ost->top_field_first;
|
|
|
|
in_picture->quality = enc->global_quality;
|
|
in_picture->pict_type = 0;
|
|
if (ost->forced_kf_index < ost->forced_kf_count &&
|
|
in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
|
|
in_picture->pict_type = AV_PICTURE_TYPE_I;
|
|
ost->forced_kf_index++;
|
|
}
|
|
|
|
ost->frames_encoded++;
|
|
|
|
ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
|
|
exit_program(1);
|
|
}
|
|
|
|
if (got_packet) {
|
|
av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
|
|
write_frame(s, &pkt, ost);
|
|
*frame_size = pkt.size;
|
|
|
|
/* if two pass, output log */
|
|
if (ost->logfile && enc->stats_out) {
|
|
fprintf(ost->logfile, "%s", enc->stats_out);
|
|
}
|
|
}
|
|
}
|
|
ost->sync_opts++;
|
|
/*
|
|
* For video, number of frames in == number of packets out.
|
|
* But there may be reordering, so we can't throw away frames on encoder
|
|
* flush, we need to limit them here, before they go into encoder.
|
|
*/
|
|
ost->frame_number++;
|
|
}
|
|
|
|
static double psnr(double d)
|
|
{
|
|
return -10.0 * log(d) / log(10.0);
|
|
}
|
|
|
|
static void do_video_stats(OutputStream *ost, int frame_size)
|
|
{
|
|
AVCodecContext *enc;
|
|
int frame_number;
|
|
double ti1, bitrate, avg_bitrate;
|
|
|
|
/* this is executed just the first time do_video_stats is called */
|
|
if (!vstats_file) {
|
|
vstats_file = fopen(vstats_filename, "w");
|
|
if (!vstats_file) {
|
|
perror("fopen");
|
|
exit_program(1);
|
|
}
|
|
}
|
|
|
|
enc = ost->enc_ctx;
|
|
if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
frame_number = ost->frame_number;
|
|
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
|
|
if (enc->flags&CODEC_FLAG_PSNR)
|
|
fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
|
|
|
|
fprintf(vstats_file,"f_size= %6d ", frame_size);
|
|
/* compute pts value */
|
|
ti1 = ost->sync_opts * av_q2d(enc->time_base);
|
|
if (ti1 < 0.01)
|
|
ti1 = 0.01;
|
|
|
|
bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
|
|
avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
|
|
fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
|
|
(double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
|
|
fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read one frame for lavfi output for ost and encode it.
|
|
*/
|
|
static int poll_filter(OutputStream *ost)
|
|
{
|
|
OutputFile *of = output_files[ost->file_index];
|
|
AVFrame *filtered_frame = NULL;
|
|
int frame_size, ret;
|
|
|
|
if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
filtered_frame = ost->filtered_frame;
|
|
|
|
if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
|
|
!(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
|
|
ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
|
|
ost->enc_ctx->frame_size);
|
|
else
|
|
ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (filtered_frame->pts != AV_NOPTS_VALUE) {
|
|
int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
|
|
filtered_frame->pts = av_rescale_q(filtered_frame->pts,
|
|
ost->filter->filter->inputs[0]->time_base,
|
|
ost->enc_ctx->time_base) -
|
|
av_rescale_q(start_time,
|
|
AV_TIME_BASE_Q,
|
|
ost->enc_ctx->time_base);
|
|
}
|
|
|
|
switch (ost->filter->filter->inputs[0]->type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
if (!ost->frame_aspect_ratio)
|
|
ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
|
|
|
|
do_video_out(of->ctx, ost, filtered_frame, &frame_size);
|
|
if (vstats_filename && frame_size)
|
|
do_video_stats(ost, frame_size);
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
do_audio_out(of->ctx, ost, filtered_frame);
|
|
break;
|
|
default:
|
|
// TODO support subtitle filters
|
|
av_assert0(0);
|
|
}
|
|
|
|
av_frame_unref(filtered_frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void finish_output_stream(OutputStream *ost)
|
|
{
|
|
OutputFile *of = output_files[ost->file_index];
|
|
int i;
|
|
|
|
ost->finished = 1;
|
|
|
|
if (of->shortest) {
|
|
for (i = 0; i < of->ctx->nb_streams; i++)
|
|
output_streams[of->ost_index + i]->finished = 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read as many frames from possible from lavfi and encode them.
|
|
*
|
|
* Always read from the active stream with the lowest timestamp. If no frames
|
|
* are available for it then return EAGAIN and wait for more input. This way we
|
|
* can use lavfi sources that generate unlimited amount of frames without memory
|
|
* usage exploding.
|
|
*/
|
|
static int poll_filters(void)
|
|
{
|
|
int i, ret = 0;
|
|
|
|
while (ret >= 0 && !received_sigterm) {
|
|
OutputStream *ost = NULL;
|
|
int64_t min_pts = INT64_MAX;
|
|
|
|
/* choose output stream with the lowest timestamp */
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
int64_t pts = output_streams[i]->sync_opts;
|
|
|
|
if (!output_streams[i]->filter || output_streams[i]->finished)
|
|
continue;
|
|
|
|
pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
|
|
AV_TIME_BASE_Q);
|
|
if (pts < min_pts) {
|
|
min_pts = pts;
|
|
ost = output_streams[i];
|
|
}
|
|
}
|
|
|
|
if (!ost)
|
|
break;
|
|
|
|
ret = poll_filter(ost);
|
|
|
|
if (ret == AVERROR_EOF) {
|
|
finish_output_stream(ost);
|
|
ret = 0;
|
|
} else if (ret == AVERROR(EAGAIN))
|
|
return 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void print_final_stats(int64_t total_size)
|
|
{
|
|
uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
|
|
uint64_t data_size = 0;
|
|
float percent = -1.0;
|
|
int i, j;
|
|
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
switch (ost->enc_ctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
|
|
case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
|
|
default: other_size += ost->data_size; break;
|
|
}
|
|
extra_size += ost->enc_ctx->extradata_size;
|
|
data_size += ost->data_size;
|
|
}
|
|
|
|
if (data_size && total_size >= data_size)
|
|
percent = 100.0 * (total_size - data_size) / data_size;
|
|
|
|
av_log(NULL, AV_LOG_INFO, "\n");
|
|
av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
|
|
video_size / 1024.0,
|
|
audio_size / 1024.0,
|
|
other_size / 1024.0,
|
|
extra_size / 1024.0);
|
|
if (percent >= 0.0)
|
|
av_log(NULL, AV_LOG_INFO, "%f%%", percent);
|
|
else
|
|
av_log(NULL, AV_LOG_INFO, "unknown");
|
|
av_log(NULL, AV_LOG_INFO, "\n");
|
|
|
|
/* print verbose per-stream stats */
|
|
for (i = 0; i < nb_input_files; i++) {
|
|
InputFile *f = input_files[i];
|
|
uint64_t total_packets = 0, total_size = 0;
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
|
|
i, f->ctx->filename);
|
|
|
|
for (j = 0; j < f->nb_streams; j++) {
|
|
InputStream *ist = input_streams[f->ist_index + j];
|
|
enum AVMediaType type = ist->dec_ctx->codec_type;
|
|
|
|
total_size += ist->data_size;
|
|
total_packets += ist->nb_packets;
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
|
|
i, j, media_type_string(type));
|
|
av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
|
|
ist->nb_packets, ist->data_size);
|
|
|
|
if (ist->decoding_needed) {
|
|
av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
|
|
ist->frames_decoded);
|
|
if (type == AVMEDIA_TYPE_AUDIO)
|
|
av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
|
|
av_log(NULL, AV_LOG_VERBOSE, "; ");
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "\n");
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
|
|
total_packets, total_size);
|
|
}
|
|
|
|
for (i = 0; i < nb_output_files; i++) {
|
|
OutputFile *of = output_files[i];
|
|
uint64_t total_packets = 0, total_size = 0;
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
|
|
i, of->ctx->filename);
|
|
|
|
for (j = 0; j < of->ctx->nb_streams; j++) {
|
|
OutputStream *ost = output_streams[of->ost_index + j];
|
|
enum AVMediaType type = ost->enc_ctx->codec_type;
|
|
|
|
total_size += ost->data_size;
|
|
total_packets += ost->packets_written;
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
|
|
i, j, media_type_string(type));
|
|
if (ost->encoding_needed) {
|
|
av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
|
|
ost->frames_encoded);
|
|
if (type == AVMEDIA_TYPE_AUDIO)
|
|
av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
|
|
av_log(NULL, AV_LOG_VERBOSE, "; ");
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
|
|
ost->packets_written, ost->data_size);
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "\n");
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
|
|
total_packets, total_size);
|
|
}
|
|
}
|
|
|
|
static void print_report(int is_last_report, int64_t timer_start)
|
|
{
|
|
char buf[1024];
|
|
OutputStream *ost;
|
|
AVFormatContext *oc;
|
|
int64_t total_size;
|
|
AVCodecContext *enc;
|
|
int frame_number, vid, i;
|
|
double bitrate, ti1, pts;
|
|
static int64_t last_time = -1;
|
|
static int qp_histogram[52];
|
|
|
|
if (!print_stats && !is_last_report)
|
|
return;
|
|
|
|
if (!is_last_report) {
|
|
int64_t cur_time;
|
|
/* display the report every 0.5 seconds */
|
|
cur_time = av_gettime_relative();
|
|
if (last_time == -1) {
|
|
last_time = cur_time;
|
|
return;
|
|
}
|
|
if ((cur_time - last_time) < 500000)
|
|
return;
|
|
last_time = cur_time;
|
|
}
|
|
|
|
|
|
oc = output_files[0]->ctx;
|
|
|
|
total_size = avio_size(oc->pb);
|
|
if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
|
|
total_size = avio_tell(oc->pb);
|
|
if (total_size < 0) {
|
|
char errbuf[128];
|
|
av_strerror(total_size, errbuf, sizeof(errbuf));
|
|
av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
|
|
"avio_tell() failed: %s\n", errbuf);
|
|
total_size = 0;
|
|
}
|
|
|
|
buf[0] = '\0';
|
|
ti1 = 1e10;
|
|
vid = 0;
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
float q = -1;
|
|
ost = output_streams[i];
|
|
enc = ost->enc_ctx;
|
|
if (!ost->stream_copy && enc->coded_frame)
|
|
q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
|
|
if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
|
|
}
|
|
if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
float t = (av_gettime_relative() - timer_start) / 1000000.0;
|
|
|
|
frame_number = ost->frame_number;
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
|
|
frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
|
|
if (is_last_report)
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
|
|
if (qp_hist) {
|
|
int j;
|
|
int qp = lrintf(q);
|
|
if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
|
|
qp_histogram[qp]++;
|
|
for (j = 0; j < 32; j++)
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
|
|
}
|
|
if (enc->flags&CODEC_FLAG_PSNR) {
|
|
int j;
|
|
double error, error_sum = 0;
|
|
double scale, scale_sum = 0;
|
|
char type[3] = { 'Y','U','V' };
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
|
|
for (j = 0; j < 3; j++) {
|
|
if (is_last_report) {
|
|
error = enc->error[j];
|
|
scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
|
|
} else {
|
|
error = enc->coded_frame->error[j];
|
|
scale = enc->width * enc->height * 255.0 * 255.0;
|
|
}
|
|
if (j)
|
|
scale /= 4;
|
|
error_sum += error;
|
|
scale_sum += scale;
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
|
|
}
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
|
|
}
|
|
vid = 1;
|
|
}
|
|
/* compute min output value */
|
|
pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
|
|
if ((pts < ti1) && (pts > 0))
|
|
ti1 = pts;
|
|
}
|
|
if (ti1 < 0.01)
|
|
ti1 = 0.01;
|
|
|
|
bitrate = (double)(total_size * 8) / ti1 / 1000.0;
|
|
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
"size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
|
|
(double)total_size / 1024, ti1, bitrate);
|
|
|
|
if (nb_frames_drop)
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
|
|
nb_frames_drop);
|
|
|
|
av_log(NULL, AV_LOG_INFO, "%s \r", buf);
|
|
|
|
fflush(stderr);
|
|
|
|
if (is_last_report)
|
|
print_final_stats(total_size);
|
|
|
|
}
|
|
|
|
static void flush_encoders(void)
|
|
{
|
|
int i, ret;
|
|
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
AVCodecContext *enc = ost->enc_ctx;
|
|
AVFormatContext *os = output_files[ost->file_index]->ctx;
|
|
int stop_encoding = 0;
|
|
|
|
if (!ost->encoding_needed)
|
|
continue;
|
|
|
|
if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
|
|
continue;
|
|
if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
|
|
continue;
|
|
|
|
for (;;) {
|
|
int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
|
|
const char *desc;
|
|
|
|
switch (enc->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
encode = avcodec_encode_audio2;
|
|
desc = "Audio";
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
encode = avcodec_encode_video2;
|
|
desc = "Video";
|
|
break;
|
|
default:
|
|
stop_encoding = 1;
|
|
}
|
|
|
|
if (encode) {
|
|
AVPacket pkt;
|
|
int got_packet;
|
|
av_init_packet(&pkt);
|
|
pkt.data = NULL;
|
|
pkt.size = 0;
|
|
|
|
ret = encode(enc, &pkt, NULL, &got_packet);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
|
|
exit_program(1);
|
|
}
|
|
if (ost->logfile && enc->stats_out) {
|
|
fprintf(ost->logfile, "%s", enc->stats_out);
|
|
}
|
|
if (!got_packet) {
|
|
stop_encoding = 1;
|
|
break;
|
|
}
|
|
av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
|
|
write_frame(os, &pkt, ost);
|
|
}
|
|
|
|
if (stop_encoding)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check whether a packet from ist should be written into ost at this time
|
|
*/
|
|
static int check_output_constraints(InputStream *ist, OutputStream *ost)
|
|
{
|
|
OutputFile *of = output_files[ost->file_index];
|
|
int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
|
|
|
|
if (ost->source_index != ist_index)
|
|
return 0;
|
|
|
|
if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
|
|
{
|
|
OutputFile *of = output_files[ost->file_index];
|
|
InputFile *f = input_files [ist->file_index];
|
|
int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
|
|
int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
|
|
AVPacket opkt;
|
|
|
|
av_init_packet(&opkt);
|
|
|
|
if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
|
|
!ost->copy_initial_nonkeyframes)
|
|
return;
|
|
|
|
if (of->recording_time != INT64_MAX &&
|
|
ist->last_dts >= of->recording_time + start_time) {
|
|
ost->finished = 1;
|
|
return;
|
|
}
|
|
|
|
if (f->recording_time != INT64_MAX) {
|
|
start_time = f->ctx->start_time;
|
|
if (f->start_time != AV_NOPTS_VALUE)
|
|
start_time += f->start_time;
|
|
if (ist->last_dts >= f->recording_time + start_time) {
|
|
ost->finished = 1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* force the input stream PTS */
|
|
if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
ost->sync_opts++;
|
|
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
|
|
else
|
|
opkt.pts = AV_NOPTS_VALUE;
|
|
|
|
if (pkt->dts == AV_NOPTS_VALUE)
|
|
opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
|
|
else
|
|
opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
|
|
opkt.dts -= ost_tb_start_time;
|
|
|
|
opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
|
|
opkt.flags = pkt->flags;
|
|
|
|
// FIXME remove the following 2 lines they shall be replaced by the bitstream filters
|
|
if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
|
|
&& ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
|
|
&& ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
|
|
&& ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
|
|
) {
|
|
if (av_parser_change(ost->parser, ost->st->codec,
|
|
&opkt.data, &opkt.size,
|
|
pkt->data, pkt->size,
|
|
pkt->flags & AV_PKT_FLAG_KEY)) {
|
|
opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
|
|
if (!opkt.buf)
|
|
exit_program(1);
|
|
}
|
|
} else {
|
|
opkt.data = pkt->data;
|
|
opkt.size = pkt->size;
|
|
}
|
|
|
|
write_frame(of->ctx, &opkt, ost);
|
|
}
|
|
|
|
int guess_input_channel_layout(InputStream *ist)
|
|
{
|
|
AVCodecContext *dec = ist->dec_ctx;
|
|
|
|
if (!dec->channel_layout) {
|
|
char layout_name[256];
|
|
|
|
dec->channel_layout = av_get_default_channel_layout(dec->channels);
|
|
if (!dec->channel_layout)
|
|
return 0;
|
|
av_get_channel_layout_string(layout_name, sizeof(layout_name),
|
|
dec->channels, dec->channel_layout);
|
|
av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
|
|
"#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
|
|
{
|
|
AVFrame *decoded_frame, *f;
|
|
AVCodecContext *avctx = ist->dec_ctx;
|
|
int i, ret, err = 0, resample_changed;
|
|
|
|
if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
|
|
return AVERROR(ENOMEM);
|
|
if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
|
|
return AVERROR(ENOMEM);
|
|
decoded_frame = ist->decoded_frame;
|
|
|
|
ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
|
|
if (!*got_output || ret < 0) {
|
|
if (!pkt->size) {
|
|
for (i = 0; i < ist->nb_filters; i++)
|
|
av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ist->samples_decoded += decoded_frame->nb_samples;
|
|
ist->frames_decoded++;
|
|
|
|
/* if the decoder provides a pts, use it instead of the last packet pts.
|
|
the decoder could be delaying output by a packet or more. */
|
|
if (decoded_frame->pts != AV_NOPTS_VALUE)
|
|
ist->next_dts = decoded_frame->pts;
|
|
else if (pkt->pts != AV_NOPTS_VALUE)
|
|
decoded_frame->pts = pkt->pts;
|
|
pkt->pts = AV_NOPTS_VALUE;
|
|
|
|
resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
|
|
ist->resample_channels != avctx->channels ||
|
|
ist->resample_channel_layout != decoded_frame->channel_layout ||
|
|
ist->resample_sample_rate != decoded_frame->sample_rate;
|
|
if (resample_changed) {
|
|
char layout1[64], layout2[64];
|
|
|
|
if (!guess_input_channel_layout(ist)) {
|
|
av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
|
|
"layout for Input Stream #%d.%d\n", ist->file_index,
|
|
ist->st->index);
|
|
exit_program(1);
|
|
}
|
|
decoded_frame->channel_layout = avctx->channel_layout;
|
|
|
|
av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
|
|
ist->resample_channel_layout);
|
|
av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
|
|
decoded_frame->channel_layout);
|
|
|
|
av_log(NULL, AV_LOG_INFO,
|
|
"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",
|
|
ist->file_index, ist->st->index,
|
|
ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
|
|
ist->resample_channels, layout1,
|
|
decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
|
|
avctx->channels, layout2);
|
|
|
|
ist->resample_sample_fmt = decoded_frame->format;
|
|
ist->resample_sample_rate = decoded_frame->sample_rate;
|
|
ist->resample_channel_layout = decoded_frame->channel_layout;
|
|
ist->resample_channels = avctx->channels;
|
|
|
|
for (i = 0; i < nb_filtergraphs; i++)
|
|
if (ist_in_filtergraph(filtergraphs[i], ist) &&
|
|
configure_filtergraph(filtergraphs[i]) < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
|
|
exit_program(1);
|
|
}
|
|
}
|
|
|
|
if (decoded_frame->pts != AV_NOPTS_VALUE)
|
|
decoded_frame->pts = av_rescale_q(decoded_frame->pts,
|
|
ist->st->time_base,
|
|
(AVRational){1, avctx->sample_rate});
|
|
for (i = 0; i < ist->nb_filters; i++) {
|
|
if (i < ist->nb_filters - 1) {
|
|
f = ist->filter_frame;
|
|
err = av_frame_ref(f, decoded_frame);
|
|
if (err < 0)
|
|
break;
|
|
} else
|
|
f = decoded_frame;
|
|
|
|
err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
|
|
av_frame_unref(ist->filter_frame);
|
|
av_frame_unref(decoded_frame);
|
|
return err < 0 ? err : ret;
|
|
}
|
|
|
|
static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
|
|
{
|
|
AVFrame *decoded_frame, *f;
|
|
int i, ret = 0, err = 0, resample_changed;
|
|
|
|
if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
|
|
return AVERROR(ENOMEM);
|
|
if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
|
|
return AVERROR(ENOMEM);
|
|
decoded_frame = ist->decoded_frame;
|
|
|
|
ret = avcodec_decode_video2(ist->dec_ctx,
|
|
decoded_frame, got_output, pkt);
|
|
if (!*got_output || ret < 0) {
|
|
if (!pkt->size) {
|
|
for (i = 0; i < ist->nb_filters; i++)
|
|
av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ist->frames_decoded++;
|
|
|
|
if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
|
|
err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
|
|
if (err < 0)
|
|
goto fail;
|
|
}
|
|
ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
|
|
|
|
decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
|
|
decoded_frame->pkt_dts);
|
|
pkt->size = 0;
|
|
|
|
if (ist->st->sample_aspect_ratio.num)
|
|
decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
|
|
|
|
resample_changed = ist->resample_width != decoded_frame->width ||
|
|
ist->resample_height != decoded_frame->height ||
|
|
ist->resample_pix_fmt != decoded_frame->format;
|
|
if (resample_changed) {
|
|
av_log(NULL, AV_LOG_INFO,
|
|
"Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
|
|
ist->file_index, ist->st->index,
|
|
ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
|
|
decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
|
|
|
|
ret = poll_filters();
|
|
if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
|
|
av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
|
|
|
|
ist->resample_width = decoded_frame->width;
|
|
ist->resample_height = decoded_frame->height;
|
|
ist->resample_pix_fmt = decoded_frame->format;
|
|
|
|
for (i = 0; i < nb_filtergraphs; i++)
|
|
if (ist_in_filtergraph(filtergraphs[i], ist) &&
|
|
configure_filtergraph(filtergraphs[i]) < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
|
|
exit_program(1);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < ist->nb_filters; i++) {
|
|
if (i < ist->nb_filters - 1) {
|
|
f = ist->filter_frame;
|
|
err = av_frame_ref(f, decoded_frame);
|
|
if (err < 0)
|
|
break;
|
|
} else
|
|
f = decoded_frame;
|
|
|
|
err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
|
|
fail:
|
|
av_frame_unref(ist->filter_frame);
|
|
av_frame_unref(decoded_frame);
|
|
return err < 0 ? err : ret;
|
|
}
|
|
|
|
static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
|
|
{
|
|
AVSubtitle subtitle;
|
|
int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
|
|
&subtitle, got_output, pkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (!*got_output)
|
|
return ret;
|
|
|
|
ist->frames_decoded++;
|
|
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
|
|
if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
|
|
continue;
|
|
|
|
do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
|
|
}
|
|
|
|
avsubtitle_free(&subtitle);
|
|
return ret;
|
|
}
|
|
|
|
/* pkt = NULL means EOF (needed to flush decoder buffers) */
|
|
static int process_input_packet(InputStream *ist, const AVPacket *pkt)
|
|
{
|
|
int i;
|
|
int got_output;
|
|
AVPacket avpkt;
|
|
|
|
if (ist->next_dts == AV_NOPTS_VALUE)
|
|
ist->next_dts = ist->last_dts;
|
|
|
|
if (!pkt) {
|
|
/* EOF handling */
|
|
av_init_packet(&avpkt);
|
|
avpkt.data = NULL;
|
|
avpkt.size = 0;
|
|
goto handle_eof;
|
|
} else {
|
|
avpkt = *pkt;
|
|
}
|
|
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
|
|
|
|
// while we have more to decode or while the decoder did output something on EOF
|
|
while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
|
|
int ret = 0;
|
|
handle_eof:
|
|
|
|
ist->last_dts = ist->next_dts;
|
|
|
|
if (avpkt.size && avpkt.size != pkt->size &&
|
|
!(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
|
|
av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
|
|
"Multiple frames in a packet from stream %d\n", pkt->stream_index);
|
|
ist->showed_multi_packet_warning = 1;
|
|
}
|
|
|
|
switch (ist->dec_ctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
ret = decode_audio (ist, &avpkt, &got_output);
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
ret = decode_video (ist, &avpkt, &got_output);
|
|
if (avpkt.duration)
|
|
ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
|
|
else if (ist->st->avg_frame_rate.num)
|
|
ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
|
|
AV_TIME_BASE_Q);
|
|
else if (ist->dec_ctx->framerate.num != 0) {
|
|
int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
|
|
ist->dec_ctx->ticks_per_frame;
|
|
ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
ret = transcode_subtitles(ist, &avpkt, &got_output);
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
// touch data and size only if not EOF
|
|
if (pkt) {
|
|
avpkt.data += ret;
|
|
avpkt.size -= ret;
|
|
}
|
|
if (!got_output) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* handle stream copy */
|
|
if (!ist->decoding_needed) {
|
|
ist->last_dts = ist->next_dts;
|
|
switch (ist->dec_ctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
|
|
ist->dec_ctx->sample_rate;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
if (ist->dec_ctx->framerate.num != 0) {
|
|
int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
|
|
ist->next_dts += ((int64_t)AV_TIME_BASE *
|
|
ist->dec_ctx->framerate.den * ticks) /
|
|
ist->dec_ctx->framerate.num;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
for (i = 0; pkt && i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
|
|
if (!check_output_constraints(ist, ost) || ost->encoding_needed)
|
|
continue;
|
|
|
|
do_streamcopy(ist, ost, pkt);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void print_sdp(void)
|
|
{
|
|
char sdp[16384];
|
|
int i;
|
|
AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
|
|
|
|
if (!avc)
|
|
exit_program(1);
|
|
for (i = 0; i < nb_output_files; i++)
|
|
avc[i] = output_files[i]->ctx;
|
|
|
|
av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
|
|
printf("SDP:\n%s\n", sdp);
|
|
fflush(stdout);
|
|
av_freep(&avc);
|
|
}
|
|
|
|
static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
|
|
{
|
|
int i;
|
|
for (i = 0; hwaccels[i].name; i++)
|
|
if (hwaccels[i].pix_fmt == pix_fmt)
|
|
return &hwaccels[i];
|
|
return NULL;
|
|
}
|
|
|
|
static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
|
|
{
|
|
InputStream *ist = s->opaque;
|
|
const enum AVPixelFormat *p;
|
|
int ret;
|
|
|
|
for (p = pix_fmts; *p != -1; p++) {
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
|
|
const HWAccel *hwaccel;
|
|
|
|
if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
|
|
break;
|
|
|
|
hwaccel = get_hwaccel(*p);
|
|
if (!hwaccel ||
|
|
(ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
|
|
(ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
|
|
continue;
|
|
|
|
ret = hwaccel->init(s);
|
|
if (ret < 0) {
|
|
if (ist->hwaccel_id == hwaccel->id) {
|
|
av_log(NULL, AV_LOG_FATAL,
|
|
"%s hwaccel requested for input stream #%d:%d, "
|
|
"but cannot be initialized.\n", hwaccel->name,
|
|
ist->file_index, ist->st->index);
|
|
exit_program(1);
|
|
}
|
|
continue;
|
|
}
|
|
ist->active_hwaccel_id = hwaccel->id;
|
|
ist->hwaccel_pix_fmt = *p;
|
|
break;
|
|
}
|
|
|
|
return *p;
|
|
}
|
|
|
|
static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
|
|
{
|
|
InputStream *ist = s->opaque;
|
|
|
|
if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
|
|
return ist->hwaccel_get_buffer(s, frame, flags);
|
|
|
|
return avcodec_default_get_buffer2(s, frame, flags);
|
|
}
|
|
|
|
static int init_input_stream(int ist_index, char *error, int error_len)
|
|
{
|
|
int i, ret;
|
|
InputStream *ist = input_streams[ist_index];
|
|
if (ist->decoding_needed) {
|
|
AVCodec *codec = ist->dec;
|
|
if (!codec) {
|
|
snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
|
|
ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* update requested sample format for the decoder based on the
|
|
corresponding encoder sample format */
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
if (ost->source_index == ist_index) {
|
|
update_sample_fmt(ist->dec_ctx, codec, ost->enc_ctx);
|
|
break;
|
|
}
|
|
}
|
|
|
|
ist->dec_ctx->opaque = ist;
|
|
ist->dec_ctx->get_format = get_format;
|
|
ist->dec_ctx->get_buffer2 = get_buffer;
|
|
ist->dec_ctx->thread_safe_callbacks = 1;
|
|
|
|
av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
|
|
|
|
if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
|
|
av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
|
|
if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
|
|
char errbuf[128];
|
|
if (ret == AVERROR_EXPERIMENTAL)
|
|
abort_codec_experimental(codec, 0);
|
|
|
|
av_strerror(ret, errbuf, sizeof(errbuf));
|
|
|
|
snprintf(error, error_len,
|
|
"Error while opening decoder for input stream "
|
|
"#%d:%d : %s",
|
|
ist->file_index, ist->st->index, errbuf);
|
|
return ret;
|
|
}
|
|
assert_avoptions(ist->decoder_opts);
|
|
}
|
|
|
|
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;
|
|
ist->next_dts = AV_NOPTS_VALUE;
|
|
init_pts_correction(&ist->pts_ctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static InputStream *get_input_stream(OutputStream *ost)
|
|
{
|
|
if (ost->source_index >= 0)
|
|
return input_streams[ost->source_index];
|
|
|
|
if (ost->filter) {
|
|
FilterGraph *fg = ost->filter->graph;
|
|
int i;
|
|
|
|
for (i = 0; i < fg->nb_inputs; i++)
|
|
if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
|
|
return fg->inputs[i]->ist;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void parse_forced_key_frames(char *kf, OutputStream *ost,
|
|
AVCodecContext *avctx)
|
|
{
|
|
char *p;
|
|
int n = 1, i;
|
|
int64_t t;
|
|
|
|
for (p = kf; *p; p++)
|
|
if (*p == ',')
|
|
n++;
|
|
ost->forced_kf_count = n;
|
|
ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
|
|
if (!ost->forced_kf_pts) {
|
|
av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
|
|
exit_program(1);
|
|
}
|
|
|
|
p = kf;
|
|
for (i = 0; i < n; i++) {
|
|
char *next = strchr(p, ',');
|
|
|
|
if (next)
|
|
*next++ = 0;
|
|
|
|
t = parse_time_or_die("force_key_frames", p, 1);
|
|
ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
|
|
|
|
p = next;
|
|
}
|
|
}
|
|
|
|
static void set_encoder_id(OutputFile *of, OutputStream *ost)
|
|
{
|
|
AVDictionaryEntry *e;
|
|
|
|
uint8_t *encoder_string;
|
|
int encoder_string_len;
|
|
int format_flags = 0;
|
|
|
|
e = av_dict_get(of->opts, "fflags", NULL, 0);
|
|
if (e) {
|
|
const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
|
|
if (!o)
|
|
return;
|
|
av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
|
|
}
|
|
|
|
encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
|
|
encoder_string = av_mallocz(encoder_string_len);
|
|
if (!encoder_string)
|
|
exit_program(1);
|
|
|
|
if (!(format_flags & AVFMT_FLAG_BITEXACT))
|
|
av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
|
|
av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
|
|
av_dict_set(&ost->st->metadata, "encoder", encoder_string,
|
|
AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
|
|
}
|
|
|
|
static int transcode_init(void)
|
|
{
|
|
int ret = 0, i, j, k;
|
|
AVFormatContext *oc;
|
|
OutputStream *ost;
|
|
InputStream *ist;
|
|
char error[1024];
|
|
int want_sdp = 1;
|
|
|
|
/* init framerate emulation */
|
|
for (i = 0; i < nb_input_files; i++) {
|
|
InputFile *ifile = input_files[i];
|
|
if (ifile->rate_emu)
|
|
for (j = 0; j < ifile->nb_streams; j++)
|
|
input_streams[j + ifile->ist_index]->start = av_gettime_relative();
|
|
}
|
|
|
|
/* output stream init */
|
|
for (i = 0; i < nb_output_files; i++) {
|
|
oc = output_files[i]->ctx;
|
|
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
|
|
av_dump_format(oc, i, oc->filename, 1);
|
|
av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
/* init complex filtergraphs */
|
|
for (i = 0; i < nb_filtergraphs; i++)
|
|
if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
|
|
return ret;
|
|
|
|
/* for each output stream, we compute the right encoding parameters */
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
AVCodecContext *enc_ctx;
|
|
AVCodecContext *dec_ctx = NULL;
|
|
ost = output_streams[i];
|
|
oc = output_files[ost->file_index]->ctx;
|
|
ist = get_input_stream(ost);
|
|
|
|
if (ost->attachment_filename)
|
|
continue;
|
|
|
|
enc_ctx = ost->enc_ctx;
|
|
|
|
if (ist) {
|
|
dec_ctx = ist->dec_ctx;
|
|
|
|
ost->st->disposition = ist->st->disposition;
|
|
enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
|
|
enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
|
|
}
|
|
|
|
if (ost->stream_copy) {
|
|
AVRational sar;
|
|
uint64_t extra_size;
|
|
|
|
av_assert0(ist && !ost->filter);
|
|
|
|
extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
|
|
|
|
if (extra_size > INT_MAX) {
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* if stream_copy is selected, no need to decode or encode */
|
|
enc_ctx->codec_id = dec_ctx->codec_id;
|
|
enc_ctx->codec_type = dec_ctx->codec_type;
|
|
|
|
if (!enc_ctx->codec_tag) {
|
|
if (!oc->oformat->codec_tag ||
|
|
av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
|
|
av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
|
|
enc_ctx->codec_tag = dec_ctx->codec_tag;
|
|
}
|
|
|
|
enc_ctx->bit_rate = dec_ctx->bit_rate;
|
|
enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
|
|
enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
|
|
enc_ctx->field_order = dec_ctx->field_order;
|
|
enc_ctx->extradata = av_mallocz(extra_size);
|
|
if (!enc_ctx->extradata) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
|
|
enc_ctx->extradata_size = dec_ctx->extradata_size;
|
|
if (!copy_tb) {
|
|
enc_ctx->time_base = dec_ctx->time_base;
|
|
enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
|
|
av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
|
|
enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
|
|
} else
|
|
enc_ctx->time_base = ist->st->time_base;
|
|
|
|
if (ist->st->nb_side_data) {
|
|
ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
|
|
sizeof(*ist->st->side_data));
|
|
if (!ost->st->side_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (j = 0; j < ist->st->nb_side_data; j++) {
|
|
const AVPacketSideData *sd_src = &ist->st->side_data[j];
|
|
AVPacketSideData *sd_dst = &ost->st->side_data[j];
|
|
|
|
sd_dst->data = av_malloc(sd_src->size);
|
|
if (!sd_dst->data)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(sd_dst->data, sd_src->data, sd_src->size);
|
|
sd_dst->size = sd_src->size;
|
|
sd_dst->type = sd_src->type;
|
|
ost->st->nb_side_data++;
|
|
}
|
|
}
|
|
|
|
ost->parser = av_parser_init(enc_ctx->codec_id);
|
|
|
|
switch (enc_ctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
if (audio_volume != 256) {
|
|
av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
|
|
exit_program(1);
|
|
}
|
|
enc_ctx->channel_layout = dec_ctx->channel_layout;
|
|
enc_ctx->sample_rate = dec_ctx->sample_rate;
|
|
enc_ctx->channels = dec_ctx->channels;
|
|
enc_ctx->frame_size = dec_ctx->frame_size;
|
|
enc_ctx->audio_service_type = dec_ctx->audio_service_type;
|
|
enc_ctx->block_align = dec_ctx->block_align;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
enc_ctx->pix_fmt = dec_ctx->pix_fmt;
|
|
enc_ctx->width = dec_ctx->width;
|
|
enc_ctx->height = dec_ctx->height;
|
|
enc_ctx->has_b_frames = dec_ctx->has_b_frames;
|
|
if (ost->frame_aspect_ratio)
|
|
sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
|
|
else if (ist->st->sample_aspect_ratio.num)
|
|
sar = ist->st->sample_aspect_ratio;
|
|
else
|
|
sar = dec_ctx->sample_aspect_ratio;
|
|
ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
enc_ctx->width = dec_ctx->width;
|
|
enc_ctx->height = dec_ctx->height;
|
|
break;
|
|
case AVMEDIA_TYPE_DATA:
|
|
case AVMEDIA_TYPE_ATTACHMENT:
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
} else {
|
|
if (!ost->enc) {
|
|
/* should only happen when a default codec is not present. */
|
|
snprintf(error, sizeof(error), "Automatic encoder selection "
|
|
"failed for output stream #%d:%d. Default encoder for "
|
|
"format %s is probably disabled. Please choose an "
|
|
"encoder manually.\n", ost->file_index, ost->index,
|
|
oc->oformat->name);
|
|
ret = AVERROR(EINVAL);
|
|
goto dump_format;
|
|
}
|
|
|
|
if (ist)
|
|
ist->decoding_needed = 1;
|
|
ost->encoding_needed = 1;
|
|
|
|
set_encoder_id(output_files[ost->file_index], ost);
|
|
|
|
/*
|
|
* We want CFR output if and only if one of those is true:
|
|
* 1) user specified output framerate with -r
|
|
* 2) user specified -vsync cfr
|
|
* 3) output format is CFR and the user didn't force vsync to
|
|
* something else than CFR
|
|
*
|
|
* in such a case, set ost->frame_rate
|
|
*/
|
|
if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
!ost->frame_rate.num && ist &&
|
|
(video_sync_method == VSYNC_CFR ||
|
|
(video_sync_method == VSYNC_AUTO &&
|
|
!(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
|
|
if (ist->framerate.num)
|
|
ost->frame_rate = ist->framerate;
|
|
else if (ist->st->avg_frame_rate.num)
|
|
ost->frame_rate = ist->st->avg_frame_rate;
|
|
else {
|
|
av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
|
|
"for the output stream #%d:%d, but no information "
|
|
"about the input framerate is available. Falling "
|
|
"back to a default value of 25fps. Use the -r option "
|
|
"if you want a different framerate.\n",
|
|
ost->file_index, ost->index);
|
|
ost->frame_rate = (AVRational){ 25, 1 };
|
|
}
|
|
|
|
if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
|
|
int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
|
|
ost->frame_rate = ost->enc->supported_framerates[idx];
|
|
}
|
|
}
|
|
|
|
if (!ost->filter &&
|
|
(enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
|
|
enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
|
|
FilterGraph *fg;
|
|
fg = init_simple_filtergraph(ist, ost);
|
|
if (configure_filtergraph(fg)) {
|
|
av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
|
|
exit_program(1);
|
|
}
|
|
}
|
|
|
|
switch (enc_ctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
|
|
enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
|
|
enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
|
|
enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
|
|
enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
|
|
|
|
enc_ctx->width = ost->filter->filter->inputs[0]->w;
|
|
enc_ctx->height = ost->filter->filter->inputs[0]->h;
|
|
enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
|
|
ost->frame_aspect_ratio ? // overridden by the -aspect cli option
|
|
av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
|
|
ost->filter->filter->inputs[0]->sample_aspect_ratio;
|
|
enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
|
|
|
|
ost->st->avg_frame_rate = ost->frame_rate;
|
|
|
|
if (dec_ctx &&
|
|
(enc_ctx->width != dec_ctx->width ||
|
|
enc_ctx->height != dec_ctx->height ||
|
|
enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
|
|
enc_ctx->bits_per_raw_sample = 0;
|
|
}
|
|
|
|
if (ost->forced_keyframes)
|
|
parse_forced_key_frames(ost->forced_keyframes, ost,
|
|
ost->enc_ctx);
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
enc_ctx->time_base = (AVRational){1, 1000};
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
/* two pass mode */
|
|
if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
|
|
char logfilename[1024];
|
|
FILE *f;
|
|
|
|
snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
|
|
ost->logfile_prefix ? ost->logfile_prefix :
|
|
DEFAULT_PASS_LOGFILENAME_PREFIX,
|
|
i);
|
|
if (!strcmp(ost->enc->name, "libx264")) {
|
|
av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
|
|
} else {
|
|
if (enc_ctx->flags & CODEC_FLAG_PASS1) {
|
|
f = fopen(logfilename, "wb");
|
|
if (!f) {
|
|
av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
|
|
logfilename, strerror(errno));
|
|
exit_program(1);
|
|
}
|
|
ost->logfile = f;
|
|
} else {
|
|
char *logbuffer;
|
|
size_t logbuffer_size;
|
|
if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
|
|
logfilename);
|
|
exit_program(1);
|
|
}
|
|
enc_ctx->stats_in = logbuffer;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* open each encoder */
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
ost = output_streams[i];
|
|
if (ost->encoding_needed) {
|
|
AVCodec *codec = ost->enc;
|
|
AVCodecContext *dec = NULL;
|
|
|
|
if ((ist = get_input_stream(ost)))
|
|
dec = ist->dec_ctx;
|
|
if (dec && dec->subtitle_header) {
|
|
ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
|
|
if (!ost->enc_ctx->subtitle_header) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto dump_format;
|
|
}
|
|
memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
|
|
ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
|
|
}
|
|
if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
|
|
av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
|
|
av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
|
|
|
|
if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
|
|
if (ret == AVERROR_EXPERIMENTAL)
|
|
abort_codec_experimental(codec, 1);
|
|
snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
|
|
ost->file_index, ost->index);
|
|
goto dump_format;
|
|
}
|
|
assert_avoptions(ost->encoder_opts);
|
|
if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
|
|
av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
|
|
"It takes bits/s as argument, not kbits/s\n");
|
|
} else {
|
|
ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_FATAL,
|
|
"Error initializing the output stream codec context.\n");
|
|
exit_program(1);
|
|
}
|
|
|
|
ost->st->time_base = ost->enc_ctx->time_base;
|
|
}
|
|
|
|
/* init input streams */
|
|
for (i = 0; i < nb_input_streams; i++)
|
|
if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
|
|
goto dump_format;
|
|
|
|
/* discard unused programs */
|
|
for (i = 0; i < nb_input_files; i++) {
|
|
InputFile *ifile = input_files[i];
|
|
for (j = 0; j < ifile->ctx->nb_programs; j++) {
|
|
AVProgram *p = ifile->ctx->programs[j];
|
|
int discard = AVDISCARD_ALL;
|
|
|
|
for (k = 0; k < p->nb_stream_indexes; k++)
|
|
if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
|
|
discard = AVDISCARD_DEFAULT;
|
|
break;
|
|
}
|
|
p->discard = discard;
|
|
}
|
|
}
|
|
|
|
/* open files and write file headers */
|
|
for (i = 0; i < nb_output_files; i++) {
|
|
oc = output_files[i]->ctx;
|
|
oc->interrupt_callback = int_cb;
|
|
if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
|
|
char errbuf[128];
|
|
av_strerror(ret, errbuf, sizeof(errbuf));
|
|
snprintf(error, sizeof(error),
|
|
"Could not write header for output file #%d "
|
|
"(incorrect codec parameters ?): %s",
|
|
i, errbuf);
|
|
ret = AVERROR(EINVAL);
|
|
goto dump_format;
|
|
}
|
|
assert_avoptions(output_files[i]->opts);
|
|
if (strcmp(oc->oformat->name, "rtp")) {
|
|
want_sdp = 0;
|
|
}
|
|
}
|
|
|
|
dump_format:
|
|
/* dump the file output parameters - cannot be done before in case
|
|
of stream copy */
|
|
for (i = 0; i < nb_output_files; i++) {
|
|
av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
|
|
}
|
|
|
|
/* dump the stream mapping */
|
|
av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
|
|
for (i = 0; i < nb_input_streams; i++) {
|
|
ist = input_streams[i];
|
|
|
|
for (j = 0; j < ist->nb_filters; j++) {
|
|
if (ist->filters[j]->graph->graph_desc) {
|
|
av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
|
|
ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
|
|
ist->filters[j]->name);
|
|
if (nb_filtergraphs > 1)
|
|
av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
|
|
av_log(NULL, AV_LOG_INFO, "\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
ost = output_streams[i];
|
|
|
|
if (ost->attachment_filename) {
|
|
/* an attached file */
|
|
av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
|
|
ost->attachment_filename, ost->file_index, ost->index);
|
|
continue;
|
|
}
|
|
|
|
if (ost->filter && ost->filter->graph->graph_desc) {
|
|
/* output from a complex graph */
|
|
av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
|
|
if (nb_filtergraphs > 1)
|
|
av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
|
|
|
|
av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
|
|
ost->index, ost->enc ? ost->enc->name : "?");
|
|
continue;
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
|
|
input_streams[ost->source_index]->file_index,
|
|
input_streams[ost->source_index]->st->index,
|
|
ost->file_index,
|
|
ost->index);
|
|
if (ost->sync_ist != input_streams[ost->source_index])
|
|
av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
|
|
ost->sync_ist->file_index,
|
|
ost->sync_ist->st->index);
|
|
if (ost->stream_copy)
|
|
av_log(NULL, AV_LOG_INFO, " (copy)");
|
|
else {
|
|
const AVCodec *in_codec = input_streams[ost->source_index]->dec;
|
|
const AVCodec *out_codec = ost->enc;
|
|
const char *decoder_name = "?";
|
|
const char *in_codec_name = "?";
|
|
const char *encoder_name = "?";
|
|
const char *out_codec_name = "?";
|
|
|
|
if (in_codec) {
|
|
decoder_name = in_codec->name;
|
|
in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
|
|
if (!strcmp(decoder_name, in_codec_name))
|
|
decoder_name = "native";
|
|
}
|
|
|
|
if (out_codec) {
|
|
encoder_name = out_codec->name;
|
|
out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
|
|
if (!strcmp(encoder_name, out_codec_name))
|
|
encoder_name = "native";
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
|
|
in_codec_name, decoder_name,
|
|
out_codec_name, encoder_name);
|
|
}
|
|
av_log(NULL, AV_LOG_INFO, "\n");
|
|
}
|
|
|
|
if (ret) {
|
|
av_log(NULL, AV_LOG_ERROR, "%s\n", error);
|
|
return ret;
|
|
}
|
|
|
|
if (want_sdp) {
|
|
print_sdp();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
|
|
static int need_output(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
OutputStream *ost = output_streams[i];
|
|
OutputFile *of = output_files[ost->file_index];
|
|
AVFormatContext *os = output_files[ost->file_index]->ctx;
|
|
|
|
if (ost->finished ||
|
|
(os->pb && avio_tell(os->pb) >= of->limit_filesize))
|
|
continue;
|
|
if (ost->frame_number >= ost->max_frames) {
|
|
int j;
|
|
for (j = 0; j < of->ctx->nb_streams; j++)
|
|
output_streams[of->ost_index + j]->finished = 1;
|
|
continue;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static InputFile *select_input_file(void)
|
|
{
|
|
InputFile *ifile = NULL;
|
|
int64_t ipts_min = INT64_MAX;
|
|
int i;
|
|
|
|
for (i = 0; i < nb_input_streams; i++) {
|
|
InputStream *ist = input_streams[i];
|
|
int64_t ipts = ist->last_dts;
|
|
|
|
if (ist->discard || input_files[ist->file_index]->eagain)
|
|
continue;
|
|
if (!input_files[ist->file_index]->eof_reached) {
|
|
if (ipts < ipts_min) {
|
|
ipts_min = ipts;
|
|
ifile = input_files[ist->file_index];
|
|
}
|
|
}
|
|
}
|
|
|
|
return ifile;
|
|
}
|
|
|
|
#if HAVE_PTHREADS
|
|
static void *input_thread(void *arg)
|
|
{
|
|
InputFile *f = arg;
|
|
int ret = 0;
|
|
|
|
while (!transcoding_finished && ret >= 0) {
|
|
AVPacket pkt;
|
|
ret = av_read_frame(f->ctx, &pkt);
|
|
|
|
if (ret == AVERROR(EAGAIN)) {
|
|
av_usleep(10000);
|
|
ret = 0;
|
|
continue;
|
|
} else if (ret < 0)
|
|
break;
|
|
|
|
pthread_mutex_lock(&f->fifo_lock);
|
|
while (!av_fifo_space(f->fifo))
|
|
pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
|
|
|
|
av_dup_packet(&pkt);
|
|
av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
|
|
|
|
pthread_mutex_unlock(&f->fifo_lock);
|
|
}
|
|
|
|
f->finished = 1;
|
|
return NULL;
|
|
}
|
|
|
|
static void free_input_threads(void)
|
|
{
|
|
int i;
|
|
|
|
if (nb_input_files == 1)
|
|
return;
|
|
|
|
transcoding_finished = 1;
|
|
|
|
for (i = 0; i < nb_input_files; i++) {
|
|
InputFile *f = input_files[i];
|
|
AVPacket pkt;
|
|
|
|
if (!f->fifo || f->joined)
|
|
continue;
|
|
|
|
pthread_mutex_lock(&f->fifo_lock);
|
|
while (av_fifo_size(f->fifo)) {
|
|
av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
|
|
av_free_packet(&pkt);
|
|
}
|
|
pthread_cond_signal(&f->fifo_cond);
|
|
pthread_mutex_unlock(&f->fifo_lock);
|
|
|
|
pthread_join(f->thread, NULL);
|
|
f->joined = 1;
|
|
|
|
while (av_fifo_size(f->fifo)) {
|
|
av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
|
|
av_free_packet(&pkt);
|
|
}
|
|
av_fifo_free(f->fifo);
|
|
}
|
|
}
|
|
|
|
static int init_input_threads(void)
|
|
{
|
|
int i, ret;
|
|
|
|
if (nb_input_files == 1)
|
|
return 0;
|
|
|
|
for (i = 0; i < nb_input_files; i++) {
|
|
InputFile *f = input_files[i];
|
|
|
|
if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
|
|
return AVERROR(ENOMEM);
|
|
|
|
pthread_mutex_init(&f->fifo_lock, NULL);
|
|
pthread_cond_init (&f->fifo_cond, NULL);
|
|
|
|
if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
|
|
return AVERROR(ret);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
|
|
{
|
|
int ret = 0;
|
|
|
|
pthread_mutex_lock(&f->fifo_lock);
|
|
|
|
if (av_fifo_size(f->fifo)) {
|
|
av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
|
|
pthread_cond_signal(&f->fifo_cond);
|
|
} else {
|
|
if (f->finished)
|
|
ret = AVERROR_EOF;
|
|
else
|
|
ret = AVERROR(EAGAIN);
|
|
}
|
|
|
|
pthread_mutex_unlock(&f->fifo_lock);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static int get_input_packet(InputFile *f, AVPacket *pkt)
|
|
{
|
|
if (f->rate_emu) {
|
|
int i;
|
|
for (i = 0; i < f->nb_streams; i++) {
|
|
InputStream *ist = input_streams[f->ist_index + i];
|
|
int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
|
|
int64_t now = av_gettime_relative() - ist->start;
|
|
if (pts > now)
|
|
return AVERROR(EAGAIN);
|
|
}
|
|
}
|
|
|
|
#if HAVE_PTHREADS
|
|
if (nb_input_files > 1)
|
|
return get_input_packet_mt(f, pkt);
|
|
#endif
|
|
return av_read_frame(f->ctx, pkt);
|
|
}
|
|
|
|
static int got_eagain(void)
|
|
{
|
|
int i;
|
|
for (i = 0; i < nb_input_files; i++)
|
|
if (input_files[i]->eagain)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static void reset_eagain(void)
|
|
{
|
|
int i;
|
|
for (i = 0; i < nb_input_files; i++)
|
|
input_files[i]->eagain = 0;
|
|
}
|
|
|
|
/*
|
|
* Read one packet from an input file and send it for
|
|
* - decoding -> lavfi (audio/video)
|
|
* - decoding -> encoding -> muxing (subtitles)
|
|
* - muxing (streamcopy)
|
|
*
|
|
* Return
|
|
* - 0 -- one packet was read and processed
|
|
* - AVERROR(EAGAIN) -- no packets were available for selected file,
|
|
* this function should be called again
|
|
* - AVERROR_EOF -- this function should not be called again
|
|
*/
|
|
static int process_input(void)
|
|
{
|
|
InputFile *ifile;
|
|
AVFormatContext *is;
|
|
InputStream *ist;
|
|
AVPacket pkt;
|
|
int ret, i, j;
|
|
|
|
/* select the stream that we must read now */
|
|
ifile = select_input_file();
|
|
/* if none, if is finished */
|
|
if (!ifile) {
|
|
if (got_eagain()) {
|
|
reset_eagain();
|
|
av_usleep(10000);
|
|
return AVERROR(EAGAIN);
|
|
}
|
|
av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
|
|
return AVERROR_EOF;
|
|
}
|
|
|
|
is = ifile->ctx;
|
|
ret = get_input_packet(ifile, &pkt);
|
|
|
|
if (ret == AVERROR(EAGAIN)) {
|
|
ifile->eagain = 1;
|
|
return ret;
|
|
}
|
|
if (ret < 0) {
|
|
if (ret != AVERROR_EOF) {
|
|
print_error(is->filename, ret);
|
|
if (exit_on_error)
|
|
exit_program(1);
|
|
}
|
|
ifile->eof_reached = 1;
|
|
|
|
for (i = 0; i < ifile->nb_streams; i++) {
|
|
ist = input_streams[ifile->ist_index + i];
|
|
if (ist->decoding_needed)
|
|
process_input_packet(ist, NULL);
|
|
|
|
/* mark all outputs that don't go through lavfi as finished */
|
|
for (j = 0; j < nb_output_streams; j++) {
|
|
OutputStream *ost = output_streams[j];
|
|
|
|
if (ost->source_index == ifile->ist_index + i &&
|
|
(ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
|
|
finish_output_stream(ost);
|
|
}
|
|
}
|
|
|
|
return AVERROR(EAGAIN);
|
|
}
|
|
|
|
reset_eagain();
|
|
|
|
if (do_pkt_dump) {
|
|
av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
|
|
is->streams[pkt.stream_index]);
|
|
}
|
|
/* the following test is needed in case new streams appear
|
|
dynamically in stream : we ignore them */
|
|
if (pkt.stream_index >= ifile->nb_streams)
|
|
goto discard_packet;
|
|
|
|
ist = input_streams[ifile->ist_index + pkt.stream_index];
|
|
|
|
ist->data_size += pkt.size;
|
|
ist->nb_packets++;
|
|
|
|
if (ist->discard)
|
|
goto discard_packet;
|
|
|
|
/* add the stream-global side data to the first packet */
|
|
if (ist->nb_packets == 1)
|
|
for (i = 0; i < ist->st->nb_side_data; i++) {
|
|
AVPacketSideData *src_sd = &ist->st->side_data[i];
|
|
uint8_t *dst_data;
|
|
|
|
if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
|
|
continue;
|
|
|
|
dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
|
|
if (!dst_data)
|
|
exit_program(1);
|
|
|
|
memcpy(dst_data, src_sd->data, src_sd->size);
|
|
}
|
|
|
|
if (pkt.dts != AV_NOPTS_VALUE)
|
|
pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
|
if (pkt.pts != AV_NOPTS_VALUE)
|
|
pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
|
|
|
if (pkt.pts != AV_NOPTS_VALUE)
|
|
pkt.pts *= ist->ts_scale;
|
|
if (pkt.dts != AV_NOPTS_VALUE)
|
|
pkt.dts *= ist->ts_scale;
|
|
|
|
if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
|
|
ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
|
|
pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
|
|
(is->iformat->flags & AVFMT_TS_DISCONT)) {
|
|
int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
|
|
int64_t delta = pkt_dts - ist->next_dts;
|
|
|
|
if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
|
|
ifile->ts_offset -= delta;
|
|
av_log(NULL, AV_LOG_DEBUG,
|
|
"timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
|
|
delta, ifile->ts_offset);
|
|
pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
|
if (pkt.pts != AV_NOPTS_VALUE)
|
|
pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
|
}
|
|
}
|
|
|
|
ret = process_input_packet(ist, &pkt);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
|
|
ist->file_index, ist->st->index);
|
|
if (exit_on_error)
|
|
exit_program(1);
|
|
}
|
|
|
|
discard_packet:
|
|
av_free_packet(&pkt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The following code is the main loop of the file converter
|
|
*/
|
|
static int transcode(void)
|
|
{
|
|
int ret, i, need_input = 1;
|
|
AVFormatContext *os;
|
|
OutputStream *ost;
|
|
InputStream *ist;
|
|
int64_t timer_start;
|
|
|
|
ret = transcode_init();
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
|
|
term_init();
|
|
|
|
timer_start = av_gettime_relative();
|
|
|
|
#if HAVE_PTHREADS
|
|
if ((ret = init_input_threads()) < 0)
|
|
goto fail;
|
|
#endif
|
|
|
|
while (!received_sigterm) {
|
|
/* check if there's any stream where output is still needed */
|
|
if (!need_output()) {
|
|
av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
|
|
break;
|
|
}
|
|
|
|
/* read and process one input packet if needed */
|
|
if (need_input) {
|
|
ret = process_input();
|
|
if (ret == AVERROR_EOF)
|
|
need_input = 0;
|
|
}
|
|
|
|
ret = poll_filters();
|
|
if (ret < 0) {
|
|
if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
|
|
continue;
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
|
|
break;
|
|
}
|
|
|
|
/* dump report by using the output first video and audio streams */
|
|
print_report(0, timer_start);
|
|
}
|
|
#if HAVE_PTHREADS
|
|
free_input_threads();
|
|
#endif
|
|
|
|
/* at the end of stream, we must flush the decoder buffers */
|
|
for (i = 0; i < nb_input_streams; i++) {
|
|
ist = input_streams[i];
|
|
if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
|
|
process_input_packet(ist, NULL);
|
|
}
|
|
}
|
|
poll_filters();
|
|
flush_encoders();
|
|
|
|
term_exit();
|
|
|
|
/* write the trailer if needed and close file */
|
|
for (i = 0; i < nb_output_files; i++) {
|
|
os = output_files[i]->ctx;
|
|
av_write_trailer(os);
|
|
}
|
|
|
|
/* dump report by using the first video and audio streams */
|
|
print_report(1, timer_start);
|
|
|
|
/* close each encoder */
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
ost = output_streams[i];
|
|
if (ost->encoding_needed) {
|
|
av_freep(&ost->enc_ctx->stats_in);
|
|
}
|
|
}
|
|
|
|
/* close each decoder */
|
|
for (i = 0; i < nb_input_streams; i++) {
|
|
ist = input_streams[i];
|
|
if (ist->decoding_needed) {
|
|
avcodec_close(ist->dec_ctx);
|
|
if (ist->hwaccel_uninit)
|
|
ist->hwaccel_uninit(ist->dec_ctx);
|
|
}
|
|
}
|
|
|
|
/* finished ! */
|
|
ret = 0;
|
|
|
|
fail:
|
|
#if HAVE_PTHREADS
|
|
free_input_threads();
|
|
#endif
|
|
|
|
if (output_streams) {
|
|
for (i = 0; i < nb_output_streams; i++) {
|
|
ost = output_streams[i];
|
|
if (ost) {
|
|
if (ost->logfile) {
|
|
fclose(ost->logfile);
|
|
ost->logfile = NULL;
|
|
}
|
|
av_free(ost->forced_kf_pts);
|
|
av_dict_free(&ost->encoder_opts);
|
|
av_dict_free(&ost->resample_opts);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int64_t getutime(void)
|
|
{
|
|
#if HAVE_GETRUSAGE
|
|
struct rusage rusage;
|
|
|
|
getrusage(RUSAGE_SELF, &rusage);
|
|
return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
|
|
#elif HAVE_GETPROCESSTIMES
|
|
HANDLE proc;
|
|
FILETIME c, e, k, u;
|
|
proc = GetCurrentProcess();
|
|
GetProcessTimes(proc, &c, &e, &k, &u);
|
|
return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
|
|
#else
|
|
return av_gettime_relative();
|
|
#endif
|
|
}
|
|
|
|
static int64_t getmaxrss(void)
|
|
{
|
|
#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
|
|
struct rusage rusage;
|
|
getrusage(RUSAGE_SELF, &rusage);
|
|
return (int64_t)rusage.ru_maxrss * 1024;
|
|
#elif HAVE_GETPROCESSMEMORYINFO
|
|
HANDLE proc;
|
|
PROCESS_MEMORY_COUNTERS memcounters;
|
|
proc = GetCurrentProcess();
|
|
memcounters.cb = sizeof(memcounters);
|
|
GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
|
|
return memcounters.PeakPagefileUsage;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret;
|
|
int64_t ti;
|
|
|
|
register_exit(avconv_cleanup);
|
|
|
|
av_log_set_flags(AV_LOG_SKIP_REPEATED);
|
|
parse_loglevel(argc, argv, options);
|
|
|
|
avcodec_register_all();
|
|
#if CONFIG_AVDEVICE
|
|
avdevice_register_all();
|
|
#endif
|
|
avfilter_register_all();
|
|
av_register_all();
|
|
avformat_network_init();
|
|
|
|
show_banner();
|
|
|
|
/* parse options and open all input/output files */
|
|
ret = avconv_parse_options(argc, argv);
|
|
if (ret < 0)
|
|
exit_program(1);
|
|
|
|
if (nb_output_files <= 0 && nb_input_files == 0) {
|
|
show_usage();
|
|
av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
|
|
exit_program(1);
|
|
}
|
|
|
|
/* file converter / grab */
|
|
if (nb_output_files <= 0) {
|
|
fprintf(stderr, "At least one output file must be specified\n");
|
|
exit_program(1);
|
|
}
|
|
|
|
ti = getutime();
|
|
if (transcode() < 0)
|
|
exit_program(1);
|
|
ti = getutime() - ti;
|
|
if (do_benchmark) {
|
|
int maxrss = getmaxrss() / 1024;
|
|
printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
|
|
}
|
|
|
|
exit_program(0);
|
|
return 0;
|
|
}
|