Class ImageDecoder
Definition
- Namespace:
- Tizen.Multimedia.Util
- Assembly:
- Tizen.Multimedia.Util.dll
This is a base class for image decoders.
public abstract class ImageDecoder : IDisposable- Inheritance
-
objectImageDecoder
- Derived
-
Tizen.Multimedia.Util.HeifDecoderTizen.Multimedia.Util.HeifDecoderTizen.Multimedia.Util.HeifDecoderTizen.Multimedia.Util.HeifDecoderTizen.Multimedia.Util.HeifDecoderTizen.Multimedia.Util.JpegXlDecoderTizen.Multimedia.Util.JpegXlDecoderTizen.Multimedia.Util.JpegXlDecoderTizen.Multimedia.Util.JpegXlDecoderTizen.Multimedia.Util.WebPDecoderTizen.Multimedia.Util.WebPDecoderTizen.Multimedia.Util.WebPDecoderTizen.Multimedia.Util.WebPDecoderTizen.Multimedia.Util.WebPDecoderTizen.Multimedia.Util.WebPDecoder
- Implements
-
System.IDisposable
Properties
View SourceInputFormat
Gets the image format of this decoder.
Declaration
public ImageFormat InputFormat { get; }Property Value
| Type | Description |
|---|---|
| ImageFormat |
Methods
View SourceDecodeAsync(byte[])
Decodes an image from the buffer.
Declaration
public Task<IEnumerable<BitmapFrame>> DecodeAsync(byte[] inputBuffer)Parameters
| Type | Name | Description |
|---|---|---|
| byte[] | inputBuffer | The image buffer from which to decode. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<TResult><System.Collections.Generic.IEnumerable<T><BitmapFrame>> | A task that represents the asynchronous decoding operation. |
Remarks
Only Graphics Interchange Format(GIF) codec returns more than one frame.
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException |
|
| System.ArgumentException |
|
| FileFormatException | The format of |
| System.ObjectDisposedException | The ImageDecoder has already been disposed of. |
DecodeAsync(string)
Decodes an image from the specified file.
Declaration
public Task<IEnumerable<BitmapFrame>> DecodeAsync(string inputFilePath)Parameters
| Type | Name | Description |
|---|---|---|
| string | inputFilePath | The input file path from which to decode. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<TResult><System.Collections.Generic.IEnumerable<T><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 |
|---|---|
| System.ArgumentNullException |
|
| System.ArgumentException |
|
| System.IO.FileNotFoundException |
|
| System.UnauthorizedAccessException | The caller does not have required permission to access the path. |
| FileFormatException | The format of |
| System.ObjectDisposedException | The ImageDecoder has already been disposed of. |
Dispose()
Releases all resources used by the ImageDecoder.
Declaration
public void Dispose()Dispose(bool)
Releases the unmanaged resources used by the ImageDecoder.
Declaration
protected virtual void Dispose(bool disposing)Parameters
| Type | Name | Description |
|---|---|---|
| bool | disposing | true to release both managed and unmanaged resources; false to release only unmanaged resources. |
SetColorSpace(ColorSpace)
Sets the color-space to decode into. The default is Rgba8888.
Declaration
public void SetColorSpace(ColorSpace colorSpace)Parameters
| Type | Name | Description |
|---|---|---|
| ColorSpace | colorSpace | The value indicating color-space to decode into. |
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentException |
|
| System.NotSupportedException |
|