[mythtv-users] Change mythpreviewgen default output size

[John Pilkington]

On 29/07/13 20:22, Zooka wrote:
> On 07/28/2013 01:41 PM, Craig Treleaven wrote:
>> At 11:52 AM +1000 7/28/13, Zooka wrote:
>>> Is it possible to change the default output size of mythpreviewgen? I
>>> understand one can use the command line to create a certain size, but
>>> the default (ie, when a recording is completed, or a bookmark added)
>>> still reverts to 320x180.
>>>
>>> The purpose is to use this for a theme background when browsing
>>> recordings, but when the preview is scaled from 320x180 to 1920x1080
>>> it is obviously rather pixelated.
>>
>> See:
>>
>> https://github.com/MythTV/mythtv/blob/master/mythtv/programs/mythpreviewgen/commandlineparser.cpp
>>
>>
>>
>> the --size parameter accepts two arguments but I'm not certain which is
>> width and height.
>>
>> Craig
>>
>
> It's width x height, I have used the command line before.  But that's
> not the problem, I wish to change the default size that mythpreviewgen
> generates when a preview is made.
>
> What I've done so far is remove all previews files, generate new ones
> (using command line) at 1920x1080 - this looks great.  But the problem
> lies when a new recording is made it will automatically generate the
> preview at 320x180 which is much too small.
>
> I thought about running a script to detect when a preview is too small
> and recreate it, but this is supposed to be a theme for others to use
> and you can't really expect people to setup hacks like that.
>
> Thanks.

Here's a link to a wrapper script that might be adaptable; but 
mythpreviewgen still seems to be overactive.  If I scroll down my 'Watch 
recordings ' screen I see new previews, from the first few frames of the 
file;  when I scroll up again I see the 'normal' ones, from much later. 
  With a full-size preview that's going to be more obvious.

http://www.gossamer-threads.com/lists/mythtv/users/537933#537933

John P