cAudioDecoder Class Reference

Audio Decoder. More...

#include <codec_audio.h>

Public Member Functions
	cAudioDecoder (cSoftHdAudio *)
	Create a new audio decoder for the given audio context.
	~cAudioDecoder (void)
void	Open (AVCodecID, AVCodecParameters *=nullptr, AVRational={ .num=1,.den=90000 })
	Open and initiate the audio decoder.
void	Close (void)
	Close the audio decoder.
void	Decode (const AVPacket *)
	Decode an audio packet.
void	FlushBuffers (void)
	Flush the audio decoder buffers.
void	SetPassthroughMask (int)
	Set audio pass-through mask.
AVCodecID	GetCodecId () const

Private Member Functions
int	DecodePassthrough (const AVPacket *, AVFrame *)
	Passthrough audio data.
int	UpdateFormat (void)
	Handle audio format changes.
void	ResetSpdif (void)

Private Attributes
cSoftHdAudio *	m_pAudio
	audio module
AVCodecContext *	m_pAudioCtx = nullptr
	ffmpeg audio codec context
AVCodecID	m_codecId = AV_CODEC_ID_NONE
	current codec id
AVFrame *	m_pFrame
	decoded ffmpeg audio frame
int64_t	m_lastPts = AV_NOPTS_VALUE
	last seen PTS
int	m_passthroughMask
	passthrough mask to be set
int	m_currentPassthrough
	current passthrough mask
int	m_currentSampleRate
	current sample rate
int	m_currentNumChannels
	current number of channels
int	m_currentHwSampleRate
	current hw sample rate
int	m_currentHwNumChannels
	current number of hw channels
uint16_t	m_spdifOutput [(MAX_FRAME_SIZE *4+16)/2]
	SPDIF output buffer.
int	m_spdifIndex
	index into SPDIF output buffer
int	m_spdifRepeatCount
	SPDIF repeat counter.

Detailed Description

Audio Decoder.

Definition at line 81 of file codec_audio.h.

Member Function Documentation

GetCodecId()

AVCodecID cAudioDecoder::GetCodecId ( ) const

inline

Definition at line 90 of file codec_audio.h.

References m_codecId.

Referenced by cSoftHdDevice::PlayAudio().

Member Data Documentation

m_codecId

AVCodecID cAudioDecoder::m_codecId = AV_CODEC_ID_NONE

private

current codec id

Definition at line 95 of file codec_audio.h.

Referenced by Close(), FlushBuffers(), GetCodecId(), and Open().

m_currentHwNumChannels

int cAudioDecoder::m_currentHwNumChannels

private

current number of hw channels

Definition at line 103 of file codec_audio.h.

Referenced by Decode(), Open(), and UpdateFormat().

m_currentHwSampleRate

int cAudioDecoder::m_currentHwSampleRate

private

current hw sample rate

Definition at line 102 of file codec_audio.h.

Referenced by Decode(), DecodePassthrough(), Open(), and UpdateFormat().

m_currentNumChannels

int cAudioDecoder::m_currentNumChannels

private

current number of channels

Definition at line 101 of file codec_audio.h.

Referenced by Decode(), Open(), and UpdateFormat().

m_currentPassthrough

int cAudioDecoder::m_currentPassthrough

private

current passthrough mask

Definition at line 99 of file codec_audio.h.

Referenced by Decode(), Open(), and UpdateFormat().

m_currentSampleRate

int cAudioDecoder::m_currentSampleRate

private

current sample rate

Definition at line 100 of file codec_audio.h.

Referenced by Decode(), Open(), and UpdateFormat().

m_lastPts

int64_t cAudioDecoder::m_lastPts = AV_NOPTS_VALUE

private

last seen PTS

Definition at line 97 of file codec_audio.h.

Referenced by Close(), Decode(), and FlushBuffers().

m_passthroughMask

int cAudioDecoder::m_passthroughMask

private

passthrough mask to be set

Definition at line 98 of file codec_audio.h.

Referenced by cAudioDecoder(), Decode(), DecodePassthrough(), Open(), SetPassthroughMask(), and UpdateFormat().

m_pAudio

cSoftHdAudio* cAudioDecoder::m_pAudio

private

audio module

Definition at line 93 of file codec_audio.h.

Referenced by Decode(), DecodePassthrough(), and UpdateFormat().

m_pAudioCtx

AVCodecContext* cAudioDecoder::m_pAudioCtx = nullptr

private

ffmpeg audio codec context

Definition at line 94 of file codec_audio.h.

Referenced by Close(), Decode(), DecodePassthrough(), FlushBuffers(), Open(), and UpdateFormat().

m_pFrame

AVFrame* cAudioDecoder::m_pFrame

private

decoded ffmpeg audio frame

Definition at line 96 of file codec_audio.h.

Referenced by cAudioDecoder(), Decode(), and ~cAudioDecoder().

m_spdifIndex

int cAudioDecoder::m_spdifIndex

private

index into SPDIF output buffer

Definition at line 105 of file codec_audio.h.

Referenced by DecodePassthrough(), ResetSpdif(), and UpdateFormat().

m_spdifOutput

uint16_t cAudioDecoder::m_spdifOutput[(MAX_FRAME_SIZE *4+16)/2]

private

SPDIF output buffer.

Definition at line 104 of file codec_audio.h.

Referenced by DecodePassthrough().

m_spdifRepeatCount

int cAudioDecoder::m_spdifRepeatCount

private

SPDIF repeat counter.

Definition at line 106 of file codec_audio.h.

Referenced by DecodePassthrough(), ResetSpdif(), and UpdateFormat().

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The documentation for this class was generated from the following files:

• codec_audio.h
• codec_audio.cpp