Scumm::MacPlayerAudioStream Class Reference

Inheritance diagram for Scumm::MacPlayerAudioStream:

Public Types
typedef Common::Functor0Mem< void, VblTaskClientDriver >	CallbackProc

Public Member Functions
	MacPlayerAudioStream (VblTaskClientDriver *drv, uint32 scummVMOutputrate, bool stereo, bool interpolate, bool internal16Bit)
void	initBuffers (uint32 feedBufferSize)
void	initDrivers ()
void	setVblCallback (const CallbackProc *proc)
void	clearBuffer ()
void	setMasterVolume (Audio::Mixer::SoundType type, uint16 vol)
int	readBuffer (int16 *buffer, const int numSamples) override
bool	isStereo () const override
int	getRate () const override
bool	endOfData () const override
Public Member Functions inherited from Audio::AudioStream
virtual bool	endOfStream () const

Member Function Documentation

readBuffer()

int Scumm::MacPlayerAudioStream::readBuffer ( int16 *  buffer, const int  numSamples  )

overridevirtual

Fill the given buffer with up to numSamples samples.

Data must be in native endianness, 16 bits per sample, signed. For stereo stream, the buffer will be filled with interleaved left and right channel samples, starting with the 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.

Returns

The actual number of samples read, or -1 if a critical error occurred.

Note

You must check whether the returned value is less than what you requested. This indicates that the stream is fully used up.

Implements Audio::AudioStream.

isStereo()

bool Scumm::MacPlayerAudioStream::isStereo ( ) const

inlineoverridevirtual

Check whether this is a stereo stream.

Implements Audio::AudioStream.

getRate()

int Scumm::MacPlayerAudioStream::getRate ( ) const

inlineoverridevirtual

Sample rate of the stream.

Implements Audio::AudioStream.

endOfData()

bool Scumm::MacPlayerAudioStream::endOfData ( ) const

inlineoverridevirtual

Check whether end of data has been reached.

If this returns true, it indicates that at this time there is no data available in the stream. However, there might be more data in the future.

This is used by e.g. a rate converter to decide whether to keep on converting data or to stop.

Implements Audio::AudioStream.

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

• engines/scumm/players/player_mac_intern.h