fm.liveswitch.vp8.Utility Class Reference

Utility methods. More...

Public Member Functions
	Utility ()

Static Public Member Functions
static int	deriveHeight (fm.liveswitch.DataBuffer buffer)
	Derives the height. More...
static int	deriveWidth (fm.liveswitch.DataBuffer buffer)
	Derives the width. More...
static int	getPictureIdDelta (int pictureId, int lastPictureId)
	Retrieves the difference between two picture IDs while accounting for overflow rollover. More...
static boolean	isKeyFrame (fm.liveswitch.DataBuffer buffer)
	Determines whether the buffer holds a keyframe. More...

Detailed Description

Utility methods.

Constructor & Destructor Documentation

Utility()

fm.liveswitch.vp8.Utility.Utility

(

)

Member Function Documentation

deriveHeight()

static int fm.liveswitch.vp8.Utility.deriveHeight ( fm.liveswitch.DataBuffer  buffer )

static

Derives the height.

Parameters

buffer

The buffer.

deriveWidth()

static int fm.liveswitch.vp8.Utility.deriveWidth ( fm.liveswitch.DataBuffer  buffer )

static

Derives the width.

Parameters

buffer

The buffer.

getPictureIdDelta()

static int fm.liveswitch.vp8.Utility.getPictureIdDelta ( int  pictureId, int  lastPictureId  )

static

Retrieves the difference between two picture IDs while accounting for overflow rollover.

Parameters

pictureId	The current picture ID.
lastPictureId	The last picture ID.

Returns

The difference between the picture IDs.

isKeyFrame()

static boolean fm.liveswitch.vp8.Utility.isKeyFrame ( fm.liveswitch.DataBuffer  buffer )

static

Determines whether the buffer holds a keyframe.

The data buffer must represent the payload of a VP8 packet.

Parameters

buffer

The buffer.