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codec.h
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codec.h
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/// Copyright (C) 2009 - 2013, 2015 by Johns. All Rights Reserved.
/// Copyright (C) 2018 by pesintta, rofafor.
///
/// SPDX-License-Identifier: AGPL-3.0-only
#include <libavutil/hwcontext.h>
//----------------------------------------------------------------------------
// Defines
//----------------------------------------------------------------------------
#define CodecPCM 0x01 ///< PCM bit mask
#define CodecMPA 0x02 ///< MPA bit mask (planned)
#define CodecAC3 0x04 ///< AC-3 bit mask
#define CodecEAC3 0x08 ///< E-AC-3 bit mask
#define CodecDTS 0x10 ///< DTS bit mask (planned)
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000
///
/// Video decoder structure.
///
struct _video_decoder_
{
VideoHwDecoder *HwDecoder; ///< video hardware decoder
AVCodec *VideoCodec; ///< video codec
AVCodecContext *VideoCtx; ///< video codec context
int FirstKeyFrame; ///< flag first frame
AVFrame *Frame; ///< decoded video frame
};
//----------------------------------------------------------------------------
// Typedefs
//----------------------------------------------------------------------------
/// Video decoder typedef.
typedef struct _video_decoder_ VideoDecoder;
/// Audio decoder typedef.
typedef struct _audio_decoder_ AudioDecoder;
//----------------------------------------------------------------------------
// Variables
//----------------------------------------------------------------------------
/// x11 display name
extern const char *X11DisplayName;
/// HW device context from video module
extern AVBufferRef *HwDeviceContext;
//----------------------------------------------------------------------------
// Prototypes
//----------------------------------------------------------------------------
/// Allocate a new video decoder context.
extern VideoDecoder *CodecVideoNewDecoder(VideoHwDecoder *);
/// Deallocate a video decoder context.
extern void CodecVideoDelDecoder(VideoDecoder *);
/// Open video codec.
extern void CodecVideoOpen(VideoDecoder *, int);
/// Close video codec.
extern void CodecVideoClose(VideoDecoder *);
/// Decode a video packet.
extern void CodecVideoDecode(VideoDecoder *, const AVPacket *);
/// Flush video buffers.
extern void CodecVideoFlushBuffers(VideoDecoder *);
/// Allocate a new audio decoder context.
extern AudioDecoder *CodecAudioNewDecoder(void);
/// Deallocate an audio decoder context.
extern void CodecAudioDelDecoder(AudioDecoder *);
/// Open audio codec.
extern void CodecAudioOpen(AudioDecoder *, int);
/// Close audio codec.
extern void CodecAudioClose(AudioDecoder *);
/// Get audio decoder info
extern char *CodecAudioGetInfo(AudioDecoder *, int);
/// Set audio drift correction.
extern void CodecSetAudioDrift(int);
/// Set audio pass-through.
extern void CodecSetAudioPassthrough(int);
/// Set audio downmix.
extern void CodecSetAudioDownmix(int);
/// Decode an audio packet.
extern void CodecAudioDecode(AudioDecoder *, const AVPacket *);
/// Flush audio buffers.
extern void CodecAudioFlushBuffers(AudioDecoder *);
/// Setup and initialize codec module.
extern void CodecInit(void);
/// Cleanup and exit codec module.
extern void CodecExit(void);