Class ImageDecoder

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Definition

Namespace:
Tizen.Multimedia.Util
Assembly:
Tizen.Multimedia.Util.dll
API Level:
4

This is a base class for image decoders.


                
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public abstract class ImageDecoder : IDisposable
Inheritance
Object
ImageDecoder
Derived
BmpDecoder
GifDecoder
HeifDecoder
JpegDecoder
JpegXlDecoder
PngDecoder
WebPDecoder

Properties

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InputFormat

Gets the image format of this decoder.

Declaration

                
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public ImageFormat InputFormat { get; }
Property Value
Type Description
ImageFormat
API Level: 4

Methods

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DecodeAsync(Byte[])

Decodes an image from the buffer.

Declaration

                
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public Task<IEnumerable<BitmapFrame>> DecodeAsync(byte[] inputBuffer)
Parameters
Type Name Description
Byte[] inputBuffer

The image buffer from which to decode.
Returns
Type Description
Task<IEnumerable<BitmapFrame>>

A task that represents the asynchronous decoding operation.
Remarks

Only Graphics Interchange Format(GIF) codec returns more than one frame.

Exceptions
Type Condition
FileFormatException

The format of inputBuffer is not InputFormat.
API Level: 4
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DecodeAsync(String)

Decodes an image from the specified file.

Declaration

                
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public Task<IEnumerable<BitmapFrame>> DecodeAsync(string inputFilePath)
Parameters
Type Name Description
String inputFilePath

The input file path from which to decode.
Returns
Type Description
Task<IEnumerable<BitmapFrame>>

A task that represents the asynchronous decoding operation.
Remarks

Only Graphics Interchange Format(GIF) codec returns more than one frame.

http://tizen.org/privilege/mediastorage is needed if inputFilePath is relevant to the media storage.
http://tizen.org/privilege/externalstorage is needed if inputFilePath is relevant to the external storage.

Exceptions
Type Condition
FileFormatException

The format of inputFilePath is not InputFormat.
API Level: 4
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Dispose()

Releases all resources used by the ImageDecoder.

Declaration

                
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public void Dispose()
API Level: 4
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Dispose(Boolean)

Releases the unmanaged resources used by the ImageDecoder.

Declaration

                
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protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
Boolean disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.
API Level: 4
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SetColorSpace(ColorSpace)

Sets the color-space to decode into. The default is Rgba8888.

Declaration

                
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public void SetColorSpace(ColorSpace colorSpace)
Parameters
Type Name Description
ColorSpace colorSpace

The value indicating color-space to decode into.
See Also
API Level: 4

Extension Methods