Re: filter for jpeg can not use

[chuck c <bubbasnmp () gmail com>]

Looks like time to move this to Bugzilla -
https://bugs.wireshark.org/bugzilla/
If you could include a brief description there and include a link back to
the screen shots here (
https://www.wireshark.org/lists/wireshark-users/202006/msg00004.html)

 206                 offset += 1;
 207                 w = tvb_get_guint8(tvb, offset) * 8;
 208                 proto_tree_add_uint(main_hdr_tree,
&hfi_rtp_jpeg_main_hdr_width, tvb, offset, 1, w);
 209                 offset += 1;
 210                 h = tvb_get_guint8(tvb, offset) * 8;
 211                 proto_tree_add_uint(main_hdr_tree,
&hfi_rtp_jpeg_main_hdr_height, tvb, offset, 1, h);
 212                 offset += 1;

On Mon, Jun 15, 2020 at 12:31 AM damker <damker () sina com> wrote:

> 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
>
>
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