This tag defines a bitmap character with JPEG compression.
It contains only the JPEG compressed image data (from the Frame Header onward).
A separate JPEGTables tag contains the JPEG encoding data used to encode
this image (the Tables/Misc segment).
The data in this tag begins with the JPEG SOI marker 0xFF, 0xD8 and ends with the EOI
marker 0xFF, 0xD9. Before version 8 of the Swf file format, Swf files could contain an
erroneous header of 0xFF, 0xD9, 0xFF, 0xD8 before the JPEG SOI marker.