mirror of
https://github.com/mpv-player/mpv
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126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/*
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* muxing using libavformat
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*
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* Copyright (C) 2011 Rudolf Polzer <divVerent@xonotic.org>
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*
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* This file is part of mpv.
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*
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* mpv 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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* mpv 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
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* GNU 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 mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_ENCODE_LAVC_H
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#define MPLAYER_ENCODE_LAVC_H
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#include <pthread.h>
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/avstring.h>
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#include <libavutil/pixfmt.h>
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#include <libavutil/opt.h>
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#include <libavutil/mathematics.h>
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#include "encode.h"
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#include "video/csputils.h"
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struct encode_lavc_context {
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struct mpv_global *global;
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struct encode_opts *options;
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struct mp_log *log;
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struct mp_tags *metadata;
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// All entry points must be guarded with the lock. Functions called by
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// the playback core lock this automatically, but ao_lavc.c and vo_lavc.c
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// must lock manually before accessing state.
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pthread_mutex_t lock;
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float vo_fps;
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// FFmpeg contexts.
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AVFormatContext *avc;
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AVStream *vst;
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AVStream *ast;
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AVCodecContext *vcc;
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AVCodecContext *acc;
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// these are processed from the options
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AVRational timebase;
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AVCodec *vc;
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AVCodec *ac;
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AVDictionary *foptions;
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AVDictionary *aoptions;
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AVDictionary *voptions;
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// values created during encoding
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int header_written; // -1 means currently writing
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// sync to audio mode
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double audio_pts_offset;
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double last_video_in_pts;
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double last_audio_in_pts;
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int64_t samples_since_last_pts;
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// anti discontinuity mode
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double next_in_pts;
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double discontinuity_pts_offset;
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long long abytes;
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long long vbytes;
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struct stream *twopass_bytebuffer_a;
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struct stream *twopass_bytebuffer_v;
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double t0;
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unsigned int frames;
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double audioseconds;
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bool expect_video;
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bool expect_audio;
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bool video_first;
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bool audio_first;
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// has encoding failed?
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bool failed;
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bool finished;
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};
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// interface for vo/ao drivers
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int encode_lavc_alloc_stream(struct encode_lavc_context *ctx,
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enum AVMediaType mt, AVStream **stream_out,
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AVCodecContext **codec_out);
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void encode_lavc_write_stats(struct encode_lavc_context *ctx,
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AVCodecContext *stream);
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int encode_lavc_write_frame(struct encode_lavc_context *ctx, AVStream *stream,
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AVPacket *packet);
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int encode_lavc_supports_pixfmt(struct encode_lavc_context *ctx, enum AVPixelFormat format);
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int encode_lavc_open_codec(struct encode_lavc_context *ctx,
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AVCodecContext *codec);
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int encode_lavc_available(struct encode_lavc_context *ctx);
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int encode_lavc_timesyncfailed(struct encode_lavc_context *ctx);
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int encode_lavc_start(struct encode_lavc_context *ctx); // returns 1 on success
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int encode_lavc_oformat_flags(struct encode_lavc_context *ctx);
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double encode_lavc_getoffset(struct encode_lavc_context *ctx,
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AVCodecContext *codec);
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void encode_lavc_fail(struct encode_lavc_context *ctx, const char *format, ...); // report failure of encoding
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bool encode_lavc_set_csp(struct encode_lavc_context *ctx,
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AVCodecContext *codec, enum mp_csp csp);
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bool encode_lavc_set_csp_levels(struct encode_lavc_context *ctx,
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AVCodecContext *codec, enum mp_csp_levels lev);
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enum mp_csp encode_lavc_get_csp(struct encode_lavc_context *ctx,
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AVCodecContext *codec);
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enum mp_csp_levels encode_lavc_get_csp_levels(struct encode_lavc_context *ctx,
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AVCodecContext *codec);
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#endif
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