Package com.bumptech.glide.load

Interface ImageHeaderParser

All Known Implementing Classes:

DefaultImageHeaderParser, ExifInterfaceImageHeaderParser

public interface ImageHeaderParser

Interface for the ImageHeaderParser.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	ImageHeaderParser.ImageType	The format of the image data including whether or not the image may include transparent pixels.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	UNKNOWN_ORIENTATION	A constant indicating we were unable to parse the orientation from the image either because no exif segment containing orientation data existed, or because of an I/O error attempting to read the exif segment.

Method Summary

Modifier and Type	Method	Description
int	getOrientation(InputStream is, ArrayPool byteArrayPool)	Parse the orientation from the image header.
int	getOrientation(ByteBuffer byteBuffer, ArrayPool byteArrayPool)
ImageHeaderParser.ImageType	getType(InputStream is)
ImageHeaderParser.ImageType	getType(ByteBuffer byteBuffer)

Field Details

UNKNOWN_ORIENTATION

static final int UNKNOWN_ORIENTATION

A constant indicating we were unable to parse the orientation from the image either because no exif segment containing orientation data existed, or because of an I/O error attempting to read the exif segment.

See Also:

• Constant Field Values

Method Details

getType

@NonNull
ImageHeaderParser.ImageType getType(@NonNull
 InputStream is)
                             throws IOException

Throws:

IOException

getType

@NonNull
ImageHeaderParser.ImageType getType(@NonNull
 ByteBuffer byteBuffer)
                             throws IOException

Throws:

IOException

getOrientation

int getOrientation(@NonNull
 InputStream is,
 @NonNull
 ArrayPool byteArrayPool)
            throws IOException

Parse the orientation from the image header. If it doesn't handle this image type (or this is not an image) it will return a default value rather than throwing an exception.

Returns:

The exif orientation if present or -1 if the header couldn't be parsed or doesn't contain an orientation

Throws:

IOException

getOrientation

int getOrientation(@NonNull
 ByteBuffer byteBuffer,
 @NonNull
 ArrayPool byteArrayPool)
            throws IOException

Throws:

IOException