#include <libmythtv/mythavutil.h>

Public Member Functions
	MythCodecMap ()=default

	~MythCodecMap ()

AVCodecContext *	GetCodecContext (const AVStream Stream, const AVCodec Codec=nullptr, bool NullCodec=false)

AVCodecContext *	FindCodecContext (const AVStream *Stream)

void	FreeCodecContext (const AVStream *Stream)

void	FreeAllContexts ()

Private Attributes
QMap< const AVStream , AVCodecContext >	m_streamMap

QRecursiveMutex	m_mapLock

Detailed Description

Utility class that keeps pointers to an AVStream and its AVCodecContext. The codec member of AVStream was previously used for this but is now deprecated.

Definition at line 27 of file mythavutil.h.

Constructor & Destructor Documentation

◆ MythCodecMap()

MythCodecMap::MythCodecMap ( )

default

◆ ~MythCodecMap()

MythCodecMap::~MythCodecMap ( )

Definition at line 283 of file mythavutil.cpp.

Member Function Documentation

◆ GetCodecContext()

AVCodecContext * MythCodecMap::GetCodecContext	(	const AVStream *	Stream,
		const AVCodec *	Codec = `nullptr`,
		bool	NullCodec = `false`
	)

Definition at line 288 of file mythavutil.cpp.

Referenced by MythAVFormatWriter::AddAudioStream(), MythAVFormatWriter::AddVideoStream(), AvFormatDecoder::autoSelectVideoTrack(), MythMediaCodecContext::GetBestSupportedCodec(), MPEG2fixup::getCodecContext(), getFileInfo(), AvFormatDecoder::GetFrame(), AvFormatDecoder::GetSubHeader(), MythMMALContext::GetSupportedCodec(), AvFormatDecoder::GetTrackDesc(), grabThumbnail(), AvFormatDecoder::H264PreProcessPkt(), ThumbFinder::initAVCodec(), avfDecoder::initialize(), AvFormatDecoder::MpegPreProcessPkt(), MythAVFormatWriter::OpenAudio(), AvFormatDecoder::OpenFile(), MythAVFormatWriter::OpenVideo(), AvFormatDecoder::PreProcessVideoPacket(), AvFormatDecoder::ProcessAudioPacket(), AvFormatDecoder::ProcessSubtitlePacket(), AvFormatDecoder::ProcessVideoFrame(), AvFormatDecoder::ProcessVideoPacket(), AvFormatDecoder::ScanStreams(), AvFormatDecoder::SetupAudioStream(), MythAVFormatWriter::WriteAudioFrame(), and MythAVFormatWriter::WriteVideoFrame().

◆ FindCodecContext()

AVCodecContext * MythCodecMap::FindCodecContext ( const AVStream * Stream )

Definition at line 328 of file mythavutil.cpp.

Referenced by AvFormatDecoder::RemoveAudioStreams(), AvFormatDecoder::ScanStreams(), and AvFormatDecoder::SeekReset().

◆ FreeCodecContext()

void MythCodecMap::FreeCodecContext ( const AVStream * Stream )

Note: This will not free a hardware or frames context that is in anyway referenced outside of the decoder. Probably need to force the VideoOutput class to discard buffers as well. Leaking hardware contexts is a very bad idea.

Definition at line 336 of file mythavutil.cpp.

Referenced by MythAVFormatWriter::AddVideoStream(), AvFormatDecoder::autoSelectVideoTrack(), ThumbFinder::closeAVCodec(), AvFormatDecoder::CloseCodecs(), avfDecoder::deinit(), FreeAllContexts(), MythMediaCodecContext::GetBestSupportedCodec(), getFileInfo(), MythMMALContext::GetSupportedCodec(), grabThumbnail(), AvFormatDecoder::RemoveAudioStreams(), and AvFormatDecoder::ScanStreams().

◆ FreeAllContexts()

void MythCodecMap::FreeAllContexts ( )

Definition at line 348 of file mythavutil.cpp.

Referenced by ~MythCodecMap().

Member Data Documentation

◆ m_streamMap

QMap<const AVStream*, AVCodecContext*> MythCodecMap::m_streamMap

private

Definition at line 40 of file mythavutil.h.

Referenced by FindCodecContext(), FreeAllContexts(), FreeCodecContext(), and GetCodecContext().

◆ m_mapLock

QRecursiveMutex MythCodecMap::m_mapLock