Omnimeeting: LinuxAudioInputDevice Class Reference

Definition at line 38 of file LinuxAudioInputDevice.hh.


Public Member Functions
	LinuxAudioInputDevice (UsageEnvironment &env, int input_port_number, unsigned char bits_per_sample, unsigned char num_channels, unsigned int sampling_frequency, unsigned int granularity_in_ms)
	Constructor.
virtual	~LinuxAudioInputDevice ()
Private Member Functions
virtual Boolean	setInputPort (int port_index)
	Redefined virtual functions.
virtual void	doGetNextFrame ()
	redefined virtual functions.
virtual void	doStopGettingFrames ()
	redefined virtual functions.
virtual double	getAverageLevel () const
	redefined virtual functions.
Private Attributes
const char *	_audio_grab_format
	Usually used for indicate "audio_device".
bool	_initialized
	Specify whether the class is initialized or not.
AVFormatContext *	_format_context
	pointer to ffmpeg 's struct AVFormatContext
AVFormatParameters *	_ap
	pointer to ffmpeg 's struct AVFormatParameters.
AVInputFormat *	_input_fmt
	pointer to ffmpeg 's struct AVInputFormat.
AVCodec *	_pcm_codec
	Codec context.
Friends
class	AudioInputDevice
	LiveMedia AudioInputDevice class.

Constructor & Destructor Documentation

LinuxAudioInputDevice::LinuxAudioInputDevice	(	UsageEnvironment &	env,
		int	input_port_number,
		unsigned char	bits_per_sample,
		unsigned char	num_channels,
		unsigned int	sampling_frequency,
		unsigned int	granularity_in_ms
	)

Parameters:

	env	UsageEnvironment see LiveMedia doc. here http://www.live555.com/liveMedia/public/doxygen/html
	input_port_number	Port number in which the microphone is mapped to by the system.
	bits_per_sample	Number of bits for sample.
	num_channels	Number of channels the grabbing process will have: 2 = stereo 1 = mono.
	sampling_frequency	Frequence of sampling.
	granularity_in_ms	Time between a grab and the other.