[IMAGING-104] ByteSourceInputStream not starting at byte 0

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 0.97
• Fix Version/s: 1.0-alpha1
• Component/s: Format: JPEG
• Assignee: Unassigned
• Reporter: Marc Campforts
• Created: 15/Feb/13 15:00
• Updated: 07/Aug/20 04:32
• Resolved: 24/Jun/13 20:27

Description

Following code results in a
org.apache.sanselan.ImageReadException: Not a Valid JPEG File: doesn't begin with 0xffd8

File file = new File(image.jpg);
InputStream is = new FileInputStream(file);
JpegImageParser parser = new JpegImageParser();
ByteSource byteSource = new ByteSourceInputStream(is, "image.jpg");
ArrayList<?> segments = parser.readSegments(byteSource, new int[]

{0xffee}, true);

But when I use the File instead of the InputStream:

File file = new File(image.jpg);
JpegImageParser parser = new JpegImageParser();
ByteSource byteSource = new ByteSourceFile(file);
ArrayList<?> segments = parser.readSegments(byteSource, new int[] {0xffee}

, true);

it works.

When I look into the exception, the process starts to read from byte 1024 instead of byte 0 when checking the filetype.