Wireshark · Display Filter Reference: Compuserve GIF

Field name	Description	Type	Versions
gif.data_block_type.unknown	Unknown GIF data block type	Label	2.4.0 to 4.4.2
image-gif.data_block	Data block	Byte sequence	2.0.0 to 4.4.2
image-gif.end	Trailer (End of the GIF stream)	Label	1.0.0 to 4.4.2
image-gif.extension	Extension	Label	1.0.0 to 4.4.2
image-gif.extension.label	Extension label	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.global.bpp	Image bits per pixel minus 1	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.global.color_bpp	Bits per color minus 1	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.global.color_map	Global color map	Byte sequence	1.0.0 to 4.4.2
image-gif.global.color_map.ordered	Global color map is ordered	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.global.color_map.present	Global color map is present	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.global.pixel_aspect_ratio	Global pixel aspect ratio	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.image	Image	Label	1.0.0 to 4.4.2
image-gif.image.code_size	LZW minimum code size	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.image.height	Image height	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.image.left	Image left position	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.image.top	Image top position	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.image.width	Image width	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.image_background_index	Background color index	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.local.bpp	Image bits per pixel minus 1	Unsigned integer (8 bits)	1.0.0 to 1.8.15, 4.0.0 to 4.4.2
image-gif.local.color_bpp	Bits per color minus 1	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.local.color_map	Local color map	Byte sequence	1.0.0 to 4.4.2
image-gif.local.color_map.ordered	Local color map is ordered	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.local.color_map.present	Local color map is present	Unsigned integer (8 bits)	1.0.0 to 4.4.2
image-gif.screen.height	Screen height	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.screen.width	Screen width	Unsigned integer (16 bits)	1.0.0 to 4.4.2
image-gif.version	Version	Character string	1.0.0 to 4.4.2