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Class quicktime.std.sg.SGVideoChannel

java.lang.Object
   |
   +----quicktime.QTObject
           |
           +----quicktime.std.comp.ComponentIdentifier
                   |
                   +----quicktime.std.comp.Component
                           |
                           +----quicktime.std.sg.SGChannel
                                   |
                                   +----quicktime.std.sg.VisualChannel
                                           |
                                           +----quicktime.std.sg.SGVideoChannel

public final class SGVideoChannel

extends VisualChannel

implements QuickTimeLib

SGVideoChannel(SequenceGrabber)

Creates a sequence grabber channel and assigns a channel component to the channel.

digitizerChanged()

Allows you to notify the sequence grabber component whenever you change the configuration of a video channel's video digitizer.

getCompressor()

Get a channel’s current image-compression parameters.

getCompressorType()

Get the Video Compressor Type

QuickTime::SGGetVideoCompressorType QuickTime::SGGetVideoCompressorType

getDigitizerComponent()

Allows you to determine the video digitizer component that is providing source video to a video channel component.

getSrcVideoBounds()

Allows you to determine the size of the source video boundary rectangle.

getVideoRect()

Allows you to determine the portion of the source video image that is to be captured.

setCompressor(int, int, int, int, int)

Set a channel’s current image-compression parameters.

setCompressorType(int)

Set the type of Video Compressor

QuickTime::SGSetVideoCompressorType QuickTime::SGSetVideoCompressorType

setDigitizerComponent(VideoDigitizer)

Allows you to assign a video digitizer component to a video channel.

setVideoRect(QDRect)

Allows you to specify the portion of the source video image that is to be captured.

 public SGVideoChannel(SequenceGrabber owner) throws StdQTException

Creates a sequence grabber channel and assigns a channel component to the channel. The channel component is responsible for providing digitized data to the sequence grabber component.

QuickTime::SGNewChannel

Parameters:

owner - specifies the sequence grabber component the channel is attached to.

 public void setCompressorType(int compressorType) throws StdQTException

Set the type of Video Compressor

QuickTime::SGSetVideoCompressorType QuickTime::SGSetVideoCompressorType

Parameters:

compressorType - sets the type of compressor to use on the channel.

 public int getCompressorType() throws StdQTException

Get the Video Compressor Type

QuickTime::SGGetVideoCompressorType QuickTime::SGGetVideoCompressorType

Parameters:

compressorType - sets the type of compressor to use on the channel.

 public void setCompressor(int depth,
                           int compressor,
                           int spatialQuality,
                           int temporalQuality,
                           int keyFrameRate) throws StdQTException

Set a channel’s current image-compression parameters.

QuickTime::SGSetVideoCompressor QuickTime::SGSetVideoCompressor

Parameters:

depth - Specifies the depth at which the image is likely to be viewed.

compressor - Specifies the image compressor identifier.

spatialQuality - Specifies the desired compressed image quality.

temporalQuality - This parameter governs the level of compression you desire with respect to information between successive frames in the sequence.

keyFrameRate - Specifies the maximum number of frames allowed between key frames.

 public SGVideoCompressorInfo getCompressor() throws StdQTException

Get a channel’s current image-compression parameters.

QuickTime::SGGetVideoCompressor QuickTime::SGGetVideoCompressor

Parameters:

returns - a SGVideoCompressorInfo object.

 public VideoDigitizer getDigitizerComponent()

Allows you to determine the video digitizer component that is providing source video to a video channel component.

QuickTime::SGGetVideoDigitizerComponent QuickTime::SGGetVideoDigitizerComponent

Returns:

the Video Digitizer component or null if there is no video digitizer

 public void setDigitizerComponent(VideoDigitizer vdig) throws StdQTException

Allows you to assign a video digitizer component to a video channel.

QuickTime::SGSetVideoDigitizerComponent QuickTime::SGSetVideoDigitizerComponent

Parameters:

vdig - the digitizer component that identifies a connection to a video digitizer component.

 public void digitizerChanged() throws StdQTException

Allows you to notify the sequence grabber component whenever you change the configuration of a video channel's video digitizer.

QuickTime::SGVideoDigitizerChanged QuickTime::SGVideoDigitizerChanged

 public void setVideoRect(QDRect r) throws StdQTException

Allows you to specify the portion of the source video image that is to be captured.

QuickTime::SGSetVideoRect QuickTime::SGSetVideoRect

Parameters:

r - the rectangle that defines the potion of the source video image to be captured.

 public QDRect getVideoRect() throws StdQTException

Allows you to determine the portion of the source video image that is to be captured.

QuickTime::SGGetVideoRect QuickTime::SGGetVideoRect

Returns:

the rectangle that defines the portion of the source video being captured.

 public QDRect getSrcVideoBounds() throws StdQTException

Allows you to determine the size of the source video boundary rectangle.

QuickTime::SGGetSrcVideoBounds QuickTime::SGGetSrcVideoBounds

Returns:

the rectangle that defines the size of the source video being captured.

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