[mythtv-users] Mythweb Channel Icon problem

Jay Foster jayf0ster at roadrunner.com
Thu Sep 20 23:50:27 UTC 2018

On 9/20/2018 9:12 AM, Jay Foster wrote:
> On 9/20/2018 9:02 AM, Bill Meek wrote:
>> On 09/20/2018 10:20 AM, Jay Foster wrote:
>>> On 9/20/2018 5:36 AM, Edmund Na wrote:
>>>> The routine which copies Channel Icon images from Myth to Mythweb 
>>>> isn’t working correctly.
>>>> At all times when I view Channel Icons on a frontend or in 
>>>> mythtv-setup I see what I expect, but recently a couple of images 
>>>> were updated and then they didn’t display on Mythweb – they showed 
>>>> as missing/corrupted image rather than no image.
>>>> The icons are stored in /home/mythtv/.mythtv/channels/ and have 
>>>> user and group permission mythtv, but they are readable by all.
>>>> Mythweb seems to access the images from 
>>>> /var/cache/mythweb/image_cache and most images here are correct. I 
>>>> understand that when a new icon is added or used something copies 
>>>> it to the image_cache folder. In my case that process is producing 
>>>> corrupted images; each is 44Bytes. It is an empty xml file. This is 
>>>> the same for PNG and jpg.
>>>> If I manually copy the icons from channels to image_cache I see the 
>>>> images I expect on Mythweb, however I would like to see if I can 
>>>> understand what is going wrong as this may indicate something else 
>>>> is wrong.
>>>> I am running Myth 0.28.0+fixes.20160413 and Ubuntu 16.04.4 LTS
>>> I have observed the same thing, but for only one channel icon 
>>> (always the same one).  I even did a find on my machine to see where 
>>> they were stored (besides ~/.mythtv/channels/) and removed them from 
>>> the cache directories (/var/cache/mythweb/image_cache/, 
>>> ~/.mythtv/cache/themecache/Arclight.1920.1080/).  Still, that one 
>>> channel icon does not work in mythweb, but works fine on the frontend.
>>> Jay
>> Hi,
>> The string 'image_cache' doesn't exist in the mythweb source (or even
>> in the mythtv source.)
>> Could this be defined in a web server setting? Or, is it a link from
>> <someDirectory>/mythweb/data/tv_icons?
>> Try: locate -b '\tv_icons' and ls -ld on the response.
>> If the mythweb icon doesn't exist under tv_icons, then the Services
>> API is used to get it from the channels directory mentioned earlier.
>> WebFrontend does the same. Try: 
>> http://yourBackend:6544//Guide/GetChannelIcon?ChanId=someChannelID
>> It would be interesting if the same icons don't display in WebFrontend.
> jay at mythbox:~$ locate -b '\tv_icons'
> /usr/share/mythtv/mythweb/data/tv_icons
> jay at mythbox:~$ ls -ld /usr/share/mythtv/mythweb/data/tv_icons
> lrwxrwxrwx 1 root root 30 Oct  4  2014 
> /usr/share/mythtv/mythweb/data/tv_icons -> /var/cache/mythweb/image_cache
> jay at mythbox:~$
> The problem TV icon DOES appear in that directory, but does not 
> display correctly in mythweb.
> Jay
I just checked again, and now that one channel icon IS displaying 
correctly in mythweb (yeah).  Something (apache2?) must have gotten 
restarted after I tried fixing the files that now makes it work.

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