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🎥 Command line media player
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126/* * muxing using libavformat * * Copyright (C) 2011 Rudolf Polzer <divVerent@xonotic.org> * * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv. If not, see <http://www.gnu.org/licenses/>. */
#ifndef MPLAYER_ENCODE_LAVC_H#define MPLAYER_ENCODE_LAVC_H
#include <pthread.h>
#include <libavcodec/avcodec.h>#include <libavformat/avformat.h>#include <libavutil/avstring.h>#include <libavutil/pixfmt.h>#include <libavutil/opt.h>#include <libavutil/mathematics.h>
#include "encode.h"#include "video/csputils.h"
struct encode_lavc_context { struct mpv_global *global; struct encode_opts *options; struct mp_log *log; struct mp_tags *metadata;
// All entry points must be guarded with the lock. Functions called by // the playback core lock this automatically, but ao_lavc.c and vo_lavc.c // must lock manually before accessing state. pthread_mutex_t lock;
float vo_fps;
// FFmpeg contexts. AVFormatContext *avc; AVStream *vst; AVStream *ast; AVCodecContext *vcc; AVCodecContext *acc;
// these are processed from the options AVRational timebase; AVCodec *vc; AVCodec *ac; AVDictionary *foptions; AVDictionary *aoptions; AVDictionary *voptions;
// values created during encoding int header_written; // -1 means currently writing
// sync to audio mode double audio_pts_offset; double last_video_in_pts;
double last_audio_in_pts; int64_t samples_since_last_pts;
// anti discontinuity mode double next_in_pts; double discontinuity_pts_offset;
long long abytes; long long vbytes; struct stream *twopass_bytebuffer_a; struct stream *twopass_bytebuffer_v; double t0; unsigned int frames; double audioseconds;
bool expect_video; bool expect_audio; bool video_first; bool audio_first;
// has encoding failed? bool failed; bool finished;};
// interface for vo/ao driversint encode_lavc_alloc_stream(struct encode_lavc_context *ctx, enum AVMediaType mt, AVStream **stream_out, AVCodecContext **codec_out);void encode_lavc_write_stats(struct encode_lavc_context *ctx, AVCodecContext *stream);int encode_lavc_write_frame(struct encode_lavc_context *ctx, AVStream *stream, AVPacket *packet);int encode_lavc_supports_pixfmt(struct encode_lavc_context *ctx, enum AVPixelFormat format);int encode_lavc_open_codec(struct encode_lavc_context *ctx, AVCodecContext *codec);int encode_lavc_available(struct encode_lavc_context *ctx);int encode_lavc_timesyncfailed(struct encode_lavc_context *ctx);int encode_lavc_start(struct encode_lavc_context *ctx); // returns 1 on successint encode_lavc_oformat_flags(struct encode_lavc_context *ctx);double encode_lavc_getoffset(struct encode_lavc_context *ctx, AVCodecContext *codec);void encode_lavc_fail(struct encode_lavc_context *ctx, const char *format, ...); // report failure of encoding
bool encode_lavc_set_csp(struct encode_lavc_context *ctx, AVCodecContext *codec, enum mp_csp csp);bool encode_lavc_set_csp_levels(struct encode_lavc_context *ctx, AVCodecContext *codec, enum mp_csp_levels lev);enum mp_csp encode_lavc_get_csp(struct encode_lavc_context *ctx, AVCodecContext *codec);enum mp_csp_levels encode_lavc_get_csp_levels(struct encode_lavc_context *ctx, AVCodecContext *codec);
#endif