FMLiveSwitchVp8Utility Class Reference

Utility methods. More...

Instance Methods
(instancetype)	- init

Class Methods
(int)	+ deriveHeightWithBuffer:
	Derives the height. More...
(int)	+ deriveWidthWithBuffer:
	Derives the width. More...
(int)	+ getPictureIdDeltaWithPictureId:lastPictureId:
	Retrieves the difference between two picture IDs while accounting for overflow rollover. More...
(bool)	+ isKeyFrameWithBuffer:
	Determines whether the buffer holds a keyframe. More...
(FMLiveSwitchVp8Utility *)	+ utility

Detailed Description

Utility methods.

Method Documentation

deriveHeightWithBuffer:

+ (int) deriveHeightWithBuffer:

(FMLiveSwitchDataBuffer *)

buffer

Derives the height.

Parameters

buffer

The buffer.

deriveWidthWithBuffer:

+ (int) deriveWidthWithBuffer:

(FMLiveSwitchDataBuffer *)

buffer

Derives the width.

Parameters

buffer

The buffer.

getPictureIdDeltaWithPictureId:lastPictureId:

+ (int) getPictureIdDeltaWithPictureId:		(int)	pictureId
lastPictureId:		(int)	lastPictureId

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.

init

- (instancetype) init

isKeyFrameWithBuffer:

+ (bool) isKeyFrameWithBuffer:

(FMLiveSwitchDataBuffer *)

buffer

Determines whether the buffer holds a keyframe.

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

Parameters

buffer

The buffer.

utility

+ (FMLiveSwitchVp8Utility*) utility