[mythtv-users] "Watch Recordings" slow - disable thumbnail/preview generation, or big SQL queries?

Niklas Brunlid prefect47 at gmail.com
Sat Apr 2 09:22:47 UTC 2011

That's my second suspect (didn't know the specifics though). Is the command
issued only when entering Watch Recordings or is it also used when you move
around in one recording group (including the "all recordings" group)?

I searched for QUERY_RECORDINGS in the archives and there was some talk
about caching data and/or supporting querying for pages in 0.21 (or maybe
right after 0.21). Was this ever implemented?

/ Niklas

On 1 April 2011 20:31, Raymond Wagner <raymond at wagnerrp.com> wrote:

> On 4/1/2011 14:10, Niklas Brunlid wrote:
> > Is there a way to disable thumbnail generation for recorded shows? My
> > combined backend/frontend has a lot of shows (currently 3094 entries
> > in the recorded table and 19162 in oldrecorded), so entering the Watch
> > Recordings screen takes 5-10 seconds, and I want to see if the
> > thumbnails are the reason (either if they are regenerated every time
> > or just the file access).
> No.  Thumbnails are only generated upon recording creation, transcoding,
> cutlist editing, or bookmark placement.  The reason it takes so long is
> because the backend protocol command QUERY_RECORDINGS does not support
> paging.  The backend has to process all 3094 programs, and send the data
> to the frontend.
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