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2461 lines
80 KiB
2461 lines
80 KiB
/* |
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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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|
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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 "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/audioconvert.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/samplefmt.h" |
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#include "libavutil/colorspace.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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|
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# include "libavfilter/avfilter.h" |
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# include "libavfilter/avfiltergraph.h" |
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# include "libavfilter/buffersrc.h" |
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# include "libavfilter/buffersink.h" |
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|
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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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|
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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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|
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#if HAVE_PTHREADS |
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#include <pthread.h> |
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#endif |
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|
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#include <time.h> |
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|
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#include "avconv.h" |
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#include "cmdutils.h" |
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|
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#include "libavutil/avassert.h" |
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|
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const char program_name[] = "avconv"; |
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const int program_birth_year = 2000; |
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|
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static FILE *vstats_file; |
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|
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static int64_t video_size = 0; |
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static int64_t audio_size = 0; |
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static int64_t extra_size = 0; |
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static int nb_frames_dup = 0; |
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static int nb_frames_drop = 0; |
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|
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|
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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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|
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#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass" |
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|
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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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|
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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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|
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FilterGraph **filtergraphs; |
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int nb_filtergraphs; |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }; |
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|
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static void exit_program(void) |
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{ |
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int i, j; |
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|
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for (i = 0; i < nb_filtergraphs; i++) { |
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avfilter_graph_free(&filtergraphs[i]->graph); |
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for (j = 0; j < filtergraphs[i]->nb_inputs; j++) { |
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av_freep(&filtergraphs[i]->inputs[j]->name); |
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av_freep(&filtergraphs[i]->inputs[j]); |
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} |
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av_freep(&filtergraphs[i]->inputs); |
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for (j = 0; j < filtergraphs[i]->nb_outputs; j++) { |
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av_freep(&filtergraphs[i]->outputs[j]->name); |
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av_freep(&filtergraphs[i]->outputs[j]); |
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} |
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av_freep(&filtergraphs[i]->outputs); |
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av_freep(&filtergraphs[i]); |
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} |
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av_freep(&filtergraphs); |
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|
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/* close files */ |
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for (i = 0; i < nb_output_files; i++) { |
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AVFormatContext *s = output_files[i]->ctx; |
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if (!(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(&output_files[i]->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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AVBitStreamFilterContext *bsfc = output_streams[i]->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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output_streams[i]->bitstream_filters = NULL; |
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avcodec_free_frame(&output_streams[i]->filtered_frame); |
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|
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av_freep(&output_streams[i]->forced_keyframes); |
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av_freep(&output_streams[i]->avfilter); |
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av_freep(&output_streams[i]->logfile_prefix); |
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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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avcodec_free_frame(&input_streams[i]->decoded_frame); |
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av_dict_free(&input_streams[i]->opts); |
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free_buffer_pool(&input_streams[i]->buffer_pool); |
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av_freep(&input_streams[i]->filters); |
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av_freep(&input_streams[i]); |
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} |
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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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|
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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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|
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uninit_opts(); |
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|
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avfilter_uninit(); |
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avformat_network_deinit(); |
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|
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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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|
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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(1); |
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} |
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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(1); |
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} |
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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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|
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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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|
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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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|
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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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|
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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->st->codec; |
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int ret; |
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|
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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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|
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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.destruct = av_destruct_packet; |
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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(1); |
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} |
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*pkt = new_pkt; |
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|
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bsfc = bsfc->next; |
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} |
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|
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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(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->st->codec->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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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->st->codec; |
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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 (!check_recording_time(ost)) |
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return; |
|
|
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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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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(1); |
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} |
|
|
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if (got_packet) { |
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if (pkt.pts != AV_NOPTS_VALUE) |
|
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); |
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if (pkt.dts != AV_NOPTS_VALUE) |
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pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); |
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if (pkt.duration > 0) |
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pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base); |
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|
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write_frame(s, &pkt, ost); |
|
|
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audio_size += pkt.size; |
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} |
|
} |
|
|
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static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp) |
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{ |
|
AVCodecContext *dec; |
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AVPicture *picture2; |
|
AVPicture picture_tmp; |
|
uint8_t *buf = 0; |
|
|
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dec = ist->st->codec; |
|
|
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/* deinterlace : must be done before any resize */ |
|
if (do_deinterlace) { |
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int size; |
|
|
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/* create temporary picture */ |
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size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height); |
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buf = av_malloc(size); |
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if (!buf) |
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return; |
|
|
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picture2 = &picture_tmp; |
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avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height); |
|
|
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if (avpicture_deinterlace(picture2, picture, |
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dec->pix_fmt, dec->width, dec->height) < 0) { |
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/* if error, do not deinterlace */ |
|
av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n"); |
|
av_free(buf); |
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buf = NULL; |
|
picture2 = picture; |
|
} |
|
} else { |
|
picture2 = picture; |
|
} |
|
|
|
if (picture != picture2) |
|
*picture = *picture2; |
|
*bufp = buf; |
|
} |
|
|
|
static void do_subtitle_out(AVFormatContext *s, |
|
OutputStream *ost, |
|
InputStream *ist, |
|
AVSubtitle *sub, |
|
int64_t pts) |
|
{ |
|
static uint8_t *subtitle_out = NULL; |
|
int subtitle_out_max_size = 1024 * 1024; |
|
int subtitle_out_size, nb, i; |
|
AVCodecContext *enc; |
|
AVPacket pkt; |
|
|
|
if (pts == AV_NOPTS_VALUE) { |
|
av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n"); |
|
if (exit_on_error) |
|
exit(1); |
|
return; |
|
} |
|
|
|
enc = ost->st->codec; |
|
|
|
if (!subtitle_out) { |
|
subtitle_out = av_malloc(subtitle_out_max_size); |
|
} |
|
|
|
/* Note: DVB subtitle need one packet to draw them and one other |
|
packet to clear them */ |
|
/* XXX: signal it in the codec context ? */ |
|
if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) |
|
nb = 2; |
|
else |
|
nb = 1; |
|
|
|
for (i = 0; i < nb; i++) { |
|
ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base); |
|
if (!check_recording_time(ost)) |
|
return; |
|
|
|
sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q); |
|
// start_display_time is required to be 0 |
|
sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q); |
|
sub->end_display_time -= sub->start_display_time; |
|
sub->start_display_time = 0; |
|
subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out, |
|
subtitle_out_max_size, sub); |
|
if (subtitle_out_size < 0) { |
|
av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n"); |
|
exit(1); |
|
} |
|
|
|
av_init_packet(&pkt); |
|
pkt.data = subtitle_out; |
|
pkt.size = subtitle_out_size; |
|
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->st->codec; |
|
|
|
*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_VERBOSE, "*** drop!\n"); |
|
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 (!check_recording_time(ost) || |
|
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; |
|
AVFrame big_picture; |
|
|
|
big_picture = *in_picture; |
|
/* better than nothing: use input picture interlaced |
|
settings */ |
|
big_picture.interlaced_frame = in_picture->interlaced_frame; |
|
if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) { |
|
if (ost->top_field_first == -1) |
|
big_picture.top_field_first = in_picture->top_field_first; |
|
else |
|
big_picture.top_field_first = !!ost->top_field_first; |
|
} |
|
|
|
big_picture.quality = ost->st->codec->global_quality; |
|
if (!enc->me_threshold) |
|
big_picture.pict_type = 0; |
|
if (ost->forced_kf_index < ost->forced_kf_count && |
|
big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) { |
|
big_picture.pict_type = AV_PICTURE_TYPE_I; |
|
ost->forced_kf_index++; |
|
} |
|
ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet); |
|
if (ret < 0) { |
|
av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); |
|
exit(1); |
|
} |
|
|
|
if (got_packet) { |
|
if (pkt.pts != AV_NOPTS_VALUE) |
|
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); |
|
if (pkt.dts != AV_NOPTS_VALUE) |
|
pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); |
|
|
|
write_frame(s, &pkt, ost); |
|
*frame_size = pkt.size; |
|
video_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(AVFormatContext *os, 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(1); |
|
} |
|
} |
|
|
|
enc = ost->st->codec; |
|
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)(video_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)video_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]; |
|
AVFilterBufferRef *picref; |
|
AVFrame *filtered_frame = NULL; |
|
int frame_size, ret; |
|
|
|
if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) { |
|
return AVERROR(ENOMEM); |
|
} else |
|
avcodec_get_frame_defaults(ost->filtered_frame); |
|
filtered_frame = ost->filtered_frame; |
|
|
|
if (ost->enc->type == AVMEDIA_TYPE_AUDIO && |
|
!(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) |
|
ret = av_buffersink_read_samples(ost->filter->filter, &picref, |
|
ost->st->codec->frame_size); |
|
else |
|
ret = av_buffersink_read(ost->filter->filter, &picref); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
avfilter_copy_buf_props(filtered_frame, picref); |
|
if (picref->pts != AV_NOPTS_VALUE) { |
|
filtered_frame->pts = av_rescale_q(picref->pts, |
|
ost->filter->filter->inputs[0]->time_base, |
|
ost->st->codec->time_base) - |
|
av_rescale_q(of->start_time, |
|
AV_TIME_BASE_Q, |
|
ost->st->codec->time_base); |
|
|
|
if (of->start_time && filtered_frame->pts < 0) { |
|
avfilter_unref_buffer(picref); |
|
return 0; |
|
} |
|
} |
|
|
|
switch (ost->filter->filter->inputs[0]->type) { |
|
case AVMEDIA_TYPE_VIDEO: |
|
if (!ost->frame_aspect_ratio) |
|
ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect; |
|
|
|
do_video_out(of->ctx, ost, filtered_frame, &frame_size); |
|
if (vstats_filename && frame_size) |
|
do_video_stats(of->ctx, 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); |
|
} |
|
|
|
avfilter_unref_buffer(picref); |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* 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, j, 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]->st->codec->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) { |
|
OutputFile *of = output_files[ost->file_index]; |
|
|
|
ost->finished = 1; |
|
|
|
if (of->shortest) { |
|
for (j = 0; j < of->ctx->nb_streams; j++) |
|
output_streams[of->ost_index + j]->finished = 1; |
|
} |
|
|
|
ret = 0; |
|
} else if (ret == AVERROR(EAGAIN)) |
|
return 0; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
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(); |
|
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); |
|
|
|
buf[0] = '\0'; |
|
ti1 = 1e10; |
|
vid = 0; |
|
for (i = 0; i < nb_output_streams; i++) { |
|
float q = -1; |
|
ost = output_streams[i]; |
|
enc = ost->st->codec; |
|
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() - 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->st->pts.val * 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_dup || nb_frames_drop) |
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d", |
|
nb_frames_dup, nb_frames_drop); |
|
|
|
av_log(NULL, AV_LOG_INFO, "%s \r", buf); |
|
|
|
fflush(stderr); |
|
|
|
if (is_last_report) { |
|
int64_t raw= audio_size + video_size + extra_size; |
|
av_log(NULL, AV_LOG_INFO, "\n"); |
|
av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n", |
|
video_size / 1024.0, |
|
audio_size / 1024.0, |
|
extra_size / 1024.0, |
|
100.0 * (total_size - raw) / raw |
|
); |
|
} |
|
} |
|
|
|
static void flush_encoders(void) |
|
{ |
|
int i, ret; |
|
|
|
for (i = 0; i < nb_output_streams; i++) { |
|
OutputStream *ost = output_streams[i]; |
|
AVCodecContext *enc = ost->st->codec; |
|
AVFormatContext *os = output_files[ost->file_index]->ctx; |
|
int stop_encoding = 0; |
|
|
|
if (!ost->encoding_needed) |
|
continue; |
|
|
|
if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1) |
|
continue; |
|
if (ost->st->codec->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; |
|
int64_t *size; |
|
|
|
switch (ost->st->codec->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
encode = avcodec_encode_audio2; |
|
desc = "Audio"; |
|
size = &audio_size; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
encode = avcodec_encode_video2; |
|
desc = "Video"; |
|
size = &video_size; |
|
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(1); |
|
} |
|
*size += ret; |
|
if (ost->logfile && enc->stats_out) { |
|
fprintf(ost->logfile, "%s", enc->stats_out); |
|
} |
|
if (!got_packet) { |
|
stop_encoding = 1; |
|
break; |
|
} |
|
if (pkt.pts != AV_NOPTS_VALUE) |
|
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); |
|
if (pkt.dts != AV_NOPTS_VALUE) |
|
pkt.dts = av_rescale_q(pkt.dts, 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 && 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]; |
|
int64_t ost_tb_start_time = av_rescale_q(of->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 + of->start_time) { |
|
ost->finished = 1; |
|
return; |
|
} |
|
|
|
/* force the input stream PTS */ |
|
if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) |
|
audio_size += pkt->size; |
|
else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { |
|
video_size += pkt->size; |
|
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->st->codec->codec_id != AV_CODEC_ID_H264 |
|
&& ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO |
|
&& ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO |
|
&& ost->st->codec->codec_id != AV_CODEC_ID_VC1 |
|
) { |
|
if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) |
|
opkt.destruct = av_destruct_packet; |
|
} else { |
|
opkt.data = pkt->data; |
|
opkt.size = pkt->size; |
|
} |
|
|
|
write_frame(of->ctx, &opkt, ost); |
|
ost->st->codec->frame_number++; |
|
av_free_packet(&opkt); |
|
} |
|
|
|
static void rate_emu_sleep(InputStream *ist) |
|
{ |
|
if (input_files[ist->file_index]->rate_emu) { |
|
int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE); |
|
int64_t now = av_gettime() - ist->start; |
|
if (pts > now) |
|
av_usleep(pts - now); |
|
} |
|
} |
|
|
|
int guess_input_channel_layout(InputStream *ist) |
|
{ |
|
AVCodecContext *dec = ist->st->codec; |
|
|
|
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; |
|
AVCodecContext *avctx = ist->st->codec; |
|
int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt); |
|
int i, ret, resample_changed; |
|
|
|
if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame())) |
|
return AVERROR(ENOMEM); |
|
else |
|
avcodec_get_frame_defaults(ist->decoded_frame); |
|
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_buffer(ist->filters[i]->filter, NULL); |
|
} |
|
return ret; |
|
} |
|
|
|
/* 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; |
|
} |
|
|
|
// preprocess audio (volume) |
|
if (audio_volume != 256) { |
|
int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps; |
|
void *samples = decoded_frame->data[0]; |
|
switch (avctx->sample_fmt) { |
|
case AV_SAMPLE_FMT_U8: |
|
{ |
|
uint8_t *volp = samples; |
|
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { |
|
int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128; |
|
*volp++ = av_clip_uint8(v); |
|
} |
|
break; |
|
} |
|
case AV_SAMPLE_FMT_S16: |
|
{ |
|
int16_t *volp = samples; |
|
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { |
|
int v = ((*volp) * audio_volume + 128) >> 8; |
|
*volp++ = av_clip_int16(v); |
|
} |
|
break; |
|
} |
|
case AV_SAMPLE_FMT_S32: |
|
{ |
|
int32_t *volp = samples; |
|
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { |
|
int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8); |
|
*volp++ = av_clipl_int32(v); |
|
} |
|
break; |
|
} |
|
case AV_SAMPLE_FMT_FLT: |
|
{ |
|
float *volp = samples; |
|
float scale = audio_volume / 256.f; |
|
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { |
|
*volp++ *= scale; |
|
} |
|
break; |
|
} |
|
case AV_SAMPLE_FMT_DBL: |
|
{ |
|
double *volp = samples; |
|
double scale = audio_volume / 256.; |
|
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { |
|
*volp++ *= scale; |
|
} |
|
break; |
|
} |
|
default: |
|
av_log(NULL, AV_LOG_FATAL, |
|
"Audio volume adjustment on sample format %s is not supported.\n", |
|
av_get_sample_fmt_name(ist->st->codec->sample_fmt)); |
|
exit(1); |
|
} |
|
} |
|
|
|
rate_emu_sleep(ist); |
|
|
|
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(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(1); |
|
} |
|
} |
|
|
|
if (decoded_frame->pts != AV_NOPTS_VALUE) |
|
decoded_frame->pts = av_rescale_q(decoded_frame->pts, |
|
ist->st->time_base, |
|
(AVRational){1, ist->st->codec->sample_rate}); |
|
for (i = 0; i < ist->nb_filters; i++) |
|
av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame); |
|
|
|
return ret; |
|
} |
|
|
|
static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output) |
|
{ |
|
AVFrame *decoded_frame; |
|
void *buffer_to_free = NULL; |
|
int i, ret = 0, resample_changed; |
|
|
|
if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame())) |
|
return AVERROR(ENOMEM); |
|
else |
|
avcodec_get_frame_defaults(ist->decoded_frame); |
|
decoded_frame = ist->decoded_frame; |
|
|
|
ret = avcodec_decode_video2(ist->st->codec, |
|
decoded_frame, got_output, pkt); |
|
if (!*got_output || ret < 0) { |
|
if (!pkt->size) { |
|
for (i = 0; i < ist->nb_filters; i++) |
|
av_buffersrc_buffer(ist->filters[i]->filter, NULL); |
|
} |
|
return ret; |
|
} |
|
|
|
decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts, |
|
decoded_frame->pkt_dts); |
|
pkt->size = 0; |
|
pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free); |
|
|
|
rate_emu_sleep(ist); |
|
|
|
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(1); |
|
} |
|
} |
|
|
|
for (i = 0; i < ist->nb_filters; i++) { |
|
if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) { |
|
FrameBuffer *buf = decoded_frame->opaque; |
|
AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays( |
|
decoded_frame->data, decoded_frame->linesize, |
|
AV_PERM_READ | AV_PERM_PRESERVE, |
|
ist->st->codec->width, ist->st->codec->height, |
|
ist->st->codec->pix_fmt); |
|
|
|
avfilter_copy_frame_props(fb, decoded_frame); |
|
fb->buf->priv = buf; |
|
fb->buf->free = filter_release_buffer; |
|
|
|
buf->refcount++; |
|
av_buffersrc_buffer(ist->filters[i]->filter, fb); |
|
} else |
|
av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame); |
|
} |
|
|
|
av_free(buffer_to_free); |
|
return ret; |
|
} |
|
|
|
static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output) |
|
{ |
|
AVSubtitle subtitle; |
|
int i, ret = avcodec_decode_subtitle2(ist->st->codec, |
|
&subtitle, got_output, pkt); |
|
if (ret < 0) |
|
return ret; |
|
if (!*got_output) |
|
return ret; |
|
|
|
rate_emu_sleep(ist); |
|
|
|
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 output_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 == NULL) { |
|
/* 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) { |
|
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->st->codec->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->st->codec->time_base.num != 0) { |
|
int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : |
|
ist->st->codec->ticks_per_frame; |
|
ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, 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) { |
|
rate_emu_sleep(ist); |
|
ist->last_dts = ist->next_dts; |
|
switch (ist->st->codec->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) / |
|
ist->st->codec->sample_rate; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
if (ist->st->codec->time_base.num != 0) { |
|
int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame; |
|
ist->next_dts += ((int64_t)AV_TIME_BASE * |
|
ist->st->codec->time_base.num * ticks) / |
|
ist->st->codec->time_base.den; |
|
} |
|
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[2048]; |
|
int i; |
|
AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files); |
|
|
|
if (!avc) |
|
exit(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 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->st->codec->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->st->codec, codec, ost->st->codec); |
|
break; |
|
} |
|
} |
|
|
|
if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) { |
|
ist->st->codec->get_buffer = codec_get_buffer; |
|
ist->st->codec->release_buffer = codec_release_buffer; |
|
ist->st->codec->opaque = &ist->buffer_pool; |
|
} |
|
|
|
if (!av_dict_get(ist->opts, "threads", NULL, 0)) |
|
av_dict_set(&ist->opts, "threads", "auto", 0); |
|
if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) { |
|
if (ret == AVERROR_EXPERIMENTAL) |
|
abort_codec_experimental(codec, 0); |
|
snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d", |
|
ist->file_index, ist->st->index); |
|
return ret; |
|
} |
|
assert_avoptions(ist->opts); |
|
} |
|
|
|
ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0; |
|
ist->next_dts = AV_NOPTS_VALUE; |
|
init_pts_correction(&ist->pts_ctx); |
|
ist->is_start = 1; |
|
|
|
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->st->codec->codec_type == ost->st->codec->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(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 int transcode_init(void) |
|
{ |
|
int ret = 0, i, j, k; |
|
AVFormatContext *oc; |
|
AVCodecContext *codec; |
|
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(); |
|
} |
|
|
|
/* 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 *icodec = NULL; |
|
ost = output_streams[i]; |
|
oc = output_files[ost->file_index]->ctx; |
|
ist = get_input_stream(ost); |
|
|
|
if (ost->attachment_filename) |
|
continue; |
|
|
|
codec = ost->st->codec; |
|
|
|
if (ist) { |
|
icodec = ist->st->codec; |
|
|
|
ost->st->disposition = ist->st->disposition; |
|
codec->bits_per_raw_sample = icodec->bits_per_raw_sample; |
|
codec->chroma_sample_location = icodec->chroma_sample_location; |
|
} |
|
|
|
if (ost->stream_copy) { |
|
uint64_t extra_size; |
|
|
|
av_assert0(ist && !ost->filter); |
|
|
|
extra_size = (uint64_t)icodec->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 */ |
|
codec->codec_id = icodec->codec_id; |
|
codec->codec_type = icodec->codec_type; |
|
|
|
if (!codec->codec_tag) { |
|
if (!oc->oformat->codec_tag || |
|
av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id || |
|
av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0) |
|
codec->codec_tag = icodec->codec_tag; |
|
} |
|
|
|
codec->bit_rate = icodec->bit_rate; |
|
codec->rc_max_rate = icodec->rc_max_rate; |
|
codec->rc_buffer_size = icodec->rc_buffer_size; |
|
codec->field_order = icodec->field_order; |
|
codec->extradata = av_mallocz(extra_size); |
|
if (!codec->extradata) { |
|
return AVERROR(ENOMEM); |
|
} |
|
memcpy(codec->extradata, icodec->extradata, icodec->extradata_size); |
|
codec->extradata_size = icodec->extradata_size; |
|
if (!copy_tb) { |
|
codec->time_base = icodec->time_base; |
|
codec->time_base.num *= icodec->ticks_per_frame; |
|
av_reduce(&codec->time_base.num, &codec->time_base.den, |
|
codec->time_base.num, codec->time_base.den, INT_MAX); |
|
} else |
|
codec->time_base = ist->st->time_base; |
|
|
|
switch (codec->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(1); |
|
} |
|
codec->channel_layout = icodec->channel_layout; |
|
codec->sample_rate = icodec->sample_rate; |
|
codec->channels = icodec->channels; |
|
codec->frame_size = icodec->frame_size; |
|
codec->audio_service_type = icodec->audio_service_type; |
|
codec->block_align = icodec->block_align; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
codec->pix_fmt = icodec->pix_fmt; |
|
codec->width = icodec->width; |
|
codec->height = icodec->height; |
|
codec->has_b_frames = icodec->has_b_frames; |
|
if (!codec->sample_aspect_ratio.num) { |
|
codec->sample_aspect_ratio = |
|
ost->st->sample_aspect_ratio = |
|
ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio : |
|
ist->st->codec->sample_aspect_ratio.num ? |
|
ist->st->codec->sample_aspect_ratio : (AVRational){0, 1}; |
|
} |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
codec->width = icodec->width; |
|
codec->height = icodec->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; |
|
|
|
/* |
|
* 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 (codec->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))))) { |
|
ost->frame_rate = ist->framerate.num ? ist->framerate : |
|
ist->st->avg_frame_rate.num ? |
|
ist->st->avg_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 && |
|
(codec->codec_type == AVMEDIA_TYPE_VIDEO || |
|
codec->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(1); |
|
} |
|
} |
|
|
|
switch (codec->codec_type) { |
|
case AVMEDIA_TYPE_AUDIO: |
|
codec->sample_fmt = ost->filter->filter->inputs[0]->format; |
|
codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate; |
|
codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout; |
|
codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout); |
|
codec->time_base = (AVRational){ 1, codec->sample_rate }; |
|
break; |
|
case AVMEDIA_TYPE_VIDEO: |
|
codec->time_base = ost->filter->filter->inputs[0]->time_base; |
|
|
|
codec->width = ost->filter->filter->inputs[0]->w; |
|
codec->height = ost->filter->filter->inputs[0]->h; |
|
codec->sample_aspect_ratio = ost->st->sample_aspect_ratio = |
|
ost->frame_aspect_ratio ? // overridden by the -aspect cli option |
|
av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) : |
|
ost->filter->filter->inputs[0]->sample_aspect_ratio; |
|
codec->pix_fmt = ost->filter->filter->inputs[0]->format; |
|
|
|
if (icodec && |
|
(codec->width != icodec->width || |
|
codec->height != icodec->height || |
|
codec->pix_fmt != icodec->pix_fmt)) { |
|
codec->bits_per_raw_sample = 0; |
|
} |
|
|
|
if (ost->forced_keyframes) |
|
parse_forced_key_frames(ost->forced_keyframes, ost, |
|
ost->st->codec); |
|
break; |
|
case AVMEDIA_TYPE_SUBTITLE: |
|
codec->time_base = (AVRational){1, 1000}; |
|
break; |
|
default: |
|
abort(); |
|
break; |
|
} |
|
/* two pass mode */ |
|
if ((codec->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->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE); |
|
} else { |
|
if (codec->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(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(1); |
|
} |
|
codec->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->st->codec; |
|
if (dec && dec->subtitle_header) { |
|
ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size); |
|
if (!ost->st->codec->subtitle_header) { |
|
ret = AVERROR(ENOMEM); |
|
goto dump_format; |
|
} |
|
memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size); |
|
ost->st->codec->subtitle_header_size = dec->subtitle_header_size; |
|
} |
|
if (!av_dict_get(ost->opts, "threads", NULL, 0)) |
|
av_dict_set(&ost->opts, "threads", "auto", 0); |
|
if ((ret = avcodec_open2(ost->st->codec, codec, &ost->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->opts); |
|
if (ost->st->codec->bit_rate && ost->st->codec->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"); |
|
extra_size += ost->st->codec->extradata_size; |
|
|
|
if (ost->st->codec->me_threshold) |
|
input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV; |
|
} |
|
} |
|
|
|
/* 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]; |
|
const char *errbuf_ptr = errbuf; |
|
if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0) |
|
errbuf_ptr = strerror(AVUNERROR(ret)); |
|
snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr); |
|
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 |
|
av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ? |
|
input_streams[ost->source_index]->dec->name : "?", |
|
ost->enc ? ost->enc->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 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(1); |
|
} |
|
ifile->eof_reached = 1; |
|
|
|
for (i = 0; i < ifile->nb_streams; i++) { |
|
ist = input_streams[ifile->ist_index + i]; |
|
if (ist->decoding_needed) |
|
output_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)) |
|
ost->finished= 1; |
|
} |
|
} |
|
|
|
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]; |
|
if (ist->discard) |
|
goto discard_packet; |
|
|
|
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 (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 = output_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(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(); |
|
|
|
#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) { |
|
output_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->st->codec->stats_in); |
|
avcodec_close(ost->st->codec); |
|
} |
|
} |
|
|
|
/* close each decoder */ |
|
for (i = 0; i < nb_input_streams; i++) { |
|
ist = input_streams[i]; |
|
if (ist->decoding_needed) { |
|
avcodec_close(ist->st->codec); |
|
} |
|
} |
|
|
|
/* 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->stream_copy) |
|
av_freep(&ost->st->codec->extradata); |
|
if (ost->logfile) { |
|
fclose(ost->logfile); |
|
ost->logfile = NULL; |
|
} |
|
av_freep(&ost->st->codec->subtitle_header); |
|
av_free(ost->forced_kf_pts); |
|
av_dict_free(&ost->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(); |
|
#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 |
|
} |
|
|
|
static void parse_cpuflags(int argc, char **argv, const OptionDef *options) |
|
{ |
|
int idx = locate_option(argc, argv, options, "cpuflags"); |
|
if (idx && argv[idx + 1]) |
|
opt_cpuflags(NULL, "cpuflags", argv[idx + 1]); |
|
} |
|
|
|
int main(int argc, char **argv) |
|
{ |
|
OptionsContext o = { 0 }; |
|
int64_t ti; |
|
|
|
atexit(exit_program); |
|
|
|
reset_options(&o); |
|
|
|
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_cpuflags(argc, argv, options); |
|
|
|
/* parse options */ |
|
parse_options(&o, argc, argv, options, opt_output_file); |
|
|
|
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(1); |
|
} |
|
|
|
/* file converter / grab */ |
|
if (nb_output_files <= 0) { |
|
fprintf(stderr, "At least one output file must be specified\n"); |
|
exit(1); |
|
} |
|
|
|
ti = getutime(); |
|
if (transcode() < 0) |
|
exit(1); |
|
ti = getutime() - ti; |
|
if (do_benchmark) { |
|
int maxrss = getmaxrss() / 1024; |
|
printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss); |
|
} |
|
|
|
exit(0); |
|
return 0; |
|
}
|
|
|