C# Class HCS_Encoder.ImageToYUV_Buffer

Converts System.Drawing images to scaled YUV420p buffers at 8bpp/planar

Afficher le fichier Open project: i-e-b/HLS---Smooth-Encoder

Méthodes publiques

Méthode	Description
HandleCapturedFrame ( object sender, VideoDataEventArgs e ) : void	Respond to capture event. This should return as fast as possible.
ImageToYUV_Buffer ( int Width, int Height ) : System	Prepare a set of buffers to accept the images. Incoming frames will be scaled to match the given width and height. For best results, capture and buffer sizes should match. Rescaling does not preserve aspect ratio.
LoadToFrame ( MediaFrame &Frame ) : void	Load the buffer into a MediaFrame for the encoder. IMPORTANT: You must call UnloadFrame after this method is called. For efficiency, unload as soon as possible.
SelectiveDequeue ( double OffsetSeconds ) : void	Remove un-needed frames when encoding by a reference clock.
SelectiveLoadFrame ( MediaFrame &Frame, double OffsetSeconds ) : void	Load the closest matching frame by offset time. Fills the encoder-ready frame, with given time-code. WARNING: use this OR 'LoadToFrame', but not both!
UnloadFrame ( MediaFrame &Frame ) : void	Release memory previously locked by LoadToFrame()

Private Methods

Méthode	Description
FirstFrameMatchingTime ( double OffsetSeconds ) : int	Used by SelectiveLoadFrame() to pick a frame from the waiting frames buffer.
ResampleBuffer ( Bitmap img, byte &Luma, byte &Cr, byte &Cb, int width, int height ) : void	Resample an image into a set of YUV420 buffers. This is done seperately from frame encoding the improve multi-processor performance
WipeBuffer ( ) : void	Emergeny clear-out. Drop all queued frames
WipeBufferUntil ( double AbandonTime ) : void	Remove all frames captured before the given capture time. They will not be encoded.

Method Details

HandleCapturedFrame() public méthode

Respond to capture event. This should return as fast as possible.

public HandleCapturedFrame ( object sender, VideoDataEventArgs e ) : void
sender	object
e	VideoDataEventArgs
Résultat	void

ImageToYUV_Buffer() public méthode

Prepare a set of buffers to accept the images. Incoming frames will be scaled to match the given width and height. For best results, capture and buffer sizes should match. Rescaling does not preserve aspect ratio.

public ImageToYUV_Buffer ( int Width, int Height ) : System
Width	int
Height	int
Résultat	System

LoadToFrame() public méthode

Load the buffer into a MediaFrame for the encoder. IMPORTANT: You must call UnloadFrame after this method is called. For efficiency, unload as soon as possible.

public LoadToFrame ( MediaFrame &Frame ) : void
Frame	MediaFrame
Résultat	void

SelectiveDequeue() public méthode

Remove un-needed frames when encoding by a reference clock.

public SelectiveDequeue ( double OffsetSeconds ) : void
OffsetSeconds	double
Résultat	void

SelectiveLoadFrame() public méthode

Load the closest matching frame by offset time. Fills the encoder-ready frame, with given time-code. WARNING: use this *OR* 'LoadToFrame', but not both!

public SelectiveLoadFrame ( MediaFrame &Frame, double OffsetSeconds ) : void
Frame	MediaFrame
OffsetSeconds	double
Résultat	void

UnloadFrame() public méthode

Release memory previously locked by LoadToFrame()

public UnloadFrame ( MediaFrame &Frame ) : void
Frame	MediaFrame
Résultat	void