Interface ImageEncoder
- All Known Implementing Classes:
JpegImageEncoder
,PngEncoder
public interface ImageEncoder
A image encoder. The encoder's encodeImage method must be synchronized in some way, so that
multiple calls from multiple threads do not interact with each other.
- Author:
- Thomas Morgner
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Method Summary
Modifier and TypeMethodDescriptionvoid
encodeImage
(java.awt.Image image, java.io.OutputStream outputStream, float quality, boolean encodeAlpha) Encodes the given image using the given encoder-specific quality and alpha-channel settings and writes the encoded image-data to the given stream.java.lang.String
Returns the mime-type of the encoded data.
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Method Details
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encodeImage
void encodeImage(java.awt.Image image, java.io.OutputStream outputStream, float quality, boolean encodeAlpha) throws java.io.IOException, UnsupportedEncoderException Encodes the given image using the given encoder-specific quality and alpha-channel settings and writes the encoded image-data to the given stream.- Parameters:
image
- the image to be encoded.outputStream
- the output stream, where to write the image data to.quality
- the quality of the encoding.encodeAlpha
- a flag controlling whether the alpha-channel should be encoded as well.- Throws:
java.io.IOException
- if there was an IO error while generating or writing the image data.UnsupportedEncoderException
- if the encoder is not supported.
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getMimeType
java.lang.String getMimeType()Returns the mime-type of the encoded data.- Returns:
- the mime-type.
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