Wireshark · Wireshark-users: Re: [Wireshark-users] filter for jpeg can not use

[damker <damker@xxxxxxxx>]

the unit of measurement for this filter is confused.

such as "jpeg.main_hdr.width == 80", it means "the original value is 80 (means 640 pixels) " or "the transform value (pixels) is 80 " ?

if it means the original value, the max value should be 255.

if it means the transform value, the max value should not be 255 

i had did some test,when i use "jpeg.main_hdr.width == 80", it display blank, 

when i use "jpeg.main_hdr.width > 255", the message with 640 pixels(the original value is 80 ) displayed,

it mean that the filter is "the transform value".

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damker