Inheritance diagram for Video::QuickTimeDecoder::QuickTimeAudioTrack:

Collaboration diagram for Video::QuickTimeDecoder::QuickTimeAudioTrack:

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Public Member Functions
	QuickTimeAudioTrack (QuickTimeDecoder decoder, QuickTimeTrack parentTrack)

size_t	readBuffer (int16 *data, const size_t numSamples)
	Fill the given buffer with up to numSamples samples. More...

int	getChannels () const
	Return the number channels in this stream. More...

int	getRate () const
	Sample rate of the stream. More...

bool	endOfData () const
	End of data reached? If this returns true, it means that at this time there is no data available in the stream. More...

bool	endOfStream () const
	End of stream reached? If this returns true, it means that all data in this stream is used up and no additional data will appear in it in the future. More...

void	queueAudio (const Common::Timestamp &length=Common::Timestamp())

Public Member Functions inherited from Sound::AudioStream
virtual	~AudioStream ()

Private Member Functions
Common::SeekableReadStream *	readAudioChunk (uint chunk)

bool	isOldDemuxing () const

uint32	getAudioChunkSampleCount (uint chunk) const

Common::Timestamp	getChunkLength (uint chunk, bool skipAACPrimer=false) const

uint32	getAACSampleTime (uint32 totalSampleCount, bool skipAACPrimer=false) const

bool	allAudioQueued () const

Private Attributes
QuickTimeDecoder *	_decoder

QuickTimeTrack *	_parentTrack

uint	_curChunk

Common::Timestamp	_curMediaPos

uint32	_samplesQueued

bool	_skipAACPrimer

Common::ScopedPtr< Sound::PacketizedAudioStream >	_stream

Additional Inherited Members
Static Public Attributes inherited from Sound::AudioStream
static const size_t	kSizeInvalid = SIZE_MAX

Detailed Description

Definition at line 198 of file quicktime.h.

Constructor & Destructor Documentation

◆ QuickTimeAudioTrack()

Video::QuickTimeDecoder::QuickTimeAudioTrack::QuickTimeAudioTrack	(	QuickTimeDecoder *	decoder,
		QuickTimeTrack *	parentTrack
	)

Definition at line 819 of file quicktime.cpp.

References Video::QuickTimeDecoder::AudioSampleDesc::_bitsPerSample, Video::QuickTimeDecoder::AudioSampleDesc::_channels, Video::QuickTimeDecoder::SampleDesc::getCodecTag(), and MKTAG.

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Member Function Documentation

◆ allAudioQueued()

bool Video::QuickTimeDecoder::QuickTimeAudioTrack::allAudioQueued ( ) const

inlineprivate

Definition at line 228 of file quicktime.h.

References _curChunk, _parentTrack, and Video::QuickTimeDecoder::QuickTimeTrack::chunkCount.

◆ endOfData()

bool Video::QuickTimeDecoder::QuickTimeAudioTrack::endOfData ( ) const

inlinevirtual

End of data reached? If this returns true, it means that at this time there is no data available in the stream.

However there may be more data in the future. This is used by e.g. a rate converter to decide whether to keep on converting data or stop.

Implements Sound::AudioStream.

Definition at line 206 of file quicktime.h.

References _stream.

◆ endOfStream()

bool Video::QuickTimeDecoder::QuickTimeAudioTrack::endOfStream ( ) const

inlinevirtual

End of stream reached? If this returns true, it means that all data in this stream is used up and no additional data will appear in it in the future.

This is used by the mixer to decide whether a given stream shall be removed from the list of active streams (and thus be destroyed). By default this maps to endOfData()

Reimplemented from Sound::AudioStream.

Definition at line 207 of file quicktime.h.

References _stream.

◆ getAACSampleTime()

uint32 Video::QuickTimeDecoder::QuickTimeAudioTrack::getAACSampleTime	(	uint32	totalSampleCount,
		bool	skipAACPrimer = `false`
	)		const

private

Definition at line 934 of file quicktime.cpp.

◆ getAudioChunkSampleCount()

uint32 Video::QuickTimeDecoder::QuickTimeAudioTrack::getAudioChunkSampleCount ( uint chunk ) const

private

Definition at line 914 of file quicktime.cpp.

◆ getChannels()

int Video::QuickTimeDecoder::QuickTimeAudioTrack::getChannels ( ) const

inlinevirtual

Return the number channels in this stream.

Implements Sound::AudioStream.

Definition at line 204 of file quicktime.h.

References _stream.

◆ getChunkLength()

Common::Timestamp Video::QuickTimeDecoder::QuickTimeAudioTrack::getChunkLength	(	uint	chunk,
		bool	skipAACPrimer = `false`
	)		const

private

Definition at line 924 of file quicktime.cpp.

◆ getRate()

int Video::QuickTimeDecoder::QuickTimeAudioTrack::getRate ( ) const

inlinevirtual

Sample rate of the stream.

Implements Sound::AudioStream.

Definition at line 205 of file quicktime.h.

References _stream.

◆ isOldDemuxing()

bool Video::QuickTimeDecoder::QuickTimeAudioTrack::isOldDemuxing ( ) const

private

Definition at line 855 of file quicktime.cpp.

◆ queueAudio()

void Video::QuickTimeDecoder::QuickTimeAudioTrack::queueAudio ( const Common::Timestamp & length = Common::Timestamp() )

Definition at line 835 of file quicktime.cpp.

References Common::Timestamp::convertToFramerate(), Common::ScopedPtrBase< T, Deallocator >::release(), and Common::Timestamp::totalNumberOfFrames().

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◆ readAudioChunk()

Common::SeekableReadStream * Video::QuickTimeDecoder::QuickTimeAudioTrack::readAudioChunk ( uint chunk )

private

Definition at line 859 of file quicktime.cpp.

References Video::QuickTimeDecoder::AudioSampleDesc::_bytesPerFrame, Video::QuickTimeDecoder::AudioSampleDesc::_samplesPerFrame, and Common::ScopedPtrBase< T, Deallocator >::get().

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◆ readBuffer()

size_t Video::QuickTimeDecoder::QuickTimeAudioTrack::readBuffer	(	int16 *	buffer,
		const size_t	numSamples
	)

inlinevirtual

Fill the given buffer with up to numSamples samples.

Returns the actual number of samples read, or kSizeInvalid if a critical error occurred (note: you must check if this value is less than what you requested, this can happen when the stream is fully used up).

Data has to be in native endianness, 16 bit per sample, signed. For stereo stream, buffer will be filled with interleaved left and right channel samples, starting with a left sample. Furthermore, the samples in the left and right are summed up. So if you request 4 samples from a stereo stream, you will get a total of two left channel and two right channel samples.

The same holds true for more channels. Channel configurations recognized:

5.1: front left, front right, front center, low frequency rear left, rear right

Implements Sound::AudioStream.

Definition at line 203 of file quicktime.h.

References _stream.

Member Data Documentation

◆ _curChunk

uint Video::QuickTimeDecoder::QuickTimeAudioTrack::_curChunk

private

Definition at line 217 of file quicktime.h.

Referenced by allAudioQueued().

◆ _curMediaPos

Common::Timestamp Video::QuickTimeDecoder::QuickTimeAudioTrack::_curMediaPos

private

Definition at line 218 of file quicktime.h.

◆ _decoder

QuickTimeDecoder* Video::QuickTimeDecoder::QuickTimeAudioTrack::_decoder

private

Definition at line 215 of file quicktime.h.

◆ _parentTrack

QuickTimeTrack* Video::QuickTimeDecoder::QuickTimeAudioTrack::_parentTrack

private

Definition at line 216 of file quicktime.h.

Referenced by allAudioQueued().

◆ _samplesQueued

uint32 Video::QuickTimeDecoder::QuickTimeAudioTrack::_samplesQueued

private

Definition at line 219 of file quicktime.h.

◆ _skipAACPrimer

bool Video::QuickTimeDecoder::QuickTimeAudioTrack::_skipAACPrimer

private

Definition at line 220 of file quicktime.h.

◆ _stream

Common::ScopedPtr<Sound::PacketizedAudioStream> Video::QuickTimeDecoder::QuickTimeAudioTrack::_stream

private

Definition at line 221 of file quicktime.h.

Referenced by endOfData(), endOfStream(), getChannels(), getRate(), and readBuffer().

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

src/video/quicktime.h
src/video/quicktime.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QuickTimeAudioTrack()

Member Function Documentation

◆ allAudioQueued()

◆ endOfData()

◆ endOfStream()

◆ getAACSampleTime()

◆ getAudioChunkSampleCount()

◆ getChannels()

◆ getChunkLength()

◆ getRate()

◆ isOldDemuxing()

◆ queueAudio()

◆ readAudioChunk()

◆ readBuffer()

Member Data Documentation

◆ _curChunk

◆ _curMediaPos

◆ _decoder

◆ _parentTrack

◆ _samplesQueued

◆ _skipAACPrimer

◆ _stream