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/*
* 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 drivers
int 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 success
int 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
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