Opened 14 years ago
Closed 14 years ago
#8757 closed defect (fixed)
Video playback stutters while browsing channel
Reported by: | Owned by: | danielk | |
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Priority: | minor | Milestone: | 0.24 |
Component: | MythTV - DVB | Version: | Master Head |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description
Upgraded from 24335 to 25595.
Now when i watch LiveTv?(DVB) and start channel browsing the program I'm watching micro stutters for every channel i browse.
If i hold the upp or down key the program turns in to a slide show.
Feels like the operation of fetching channel data disrupts playback in liveTV.
If i do the same in the OSD menu "Playback Options" and starts scrolling up and down the playback is smooth as silk.
I have found out that if i browse right(forward in time, by holding right arrowkey) it stutters until i reach the last program info (6 hours forward).
But if i browse left(backwards in time, by holding left arrowkey) it continues to stutter even when program info gets to the current time, still holding left arrow key.
When i browse to the right most position the only thing that is fireing then is BrowseDispInfo?() thats when the playback stops stuttering.
When i get to the left most position even though there isn't anything more to fetch it still tries to fetch data from the backend and playback is stuttering.
Sorry for the poorly written bug report but I'm having a hard time formulating it.
(Do teletext/dvb-subs supposed to work with this revision?)
Attachments (1)
Change History (6)
comment:1 Changed 14 years ago by
Owner: | changed from Janne Grunau to markk |
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Status: | new → assigned |
comment:2 Changed 14 years ago by
comment:3 Changed 14 years ago by
Milestone: | unknown → 0.24 |
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Owner: | changed from markk to danielk |
comment:4 Changed 14 years ago by
This was much more complicated than I had anticipated!
This creates a helper class to handle the channel browsing task which wasn't working in the UI thread once the video started using it after the MythUI merge. The class is tightly integrated with the TV class. I had the initial proof-of-concept done in an hour, 12 hours ago... But since the browse code participates in channel changing it needs access to various other things like channel group variables which were not locked.. They didn't need to be locked before because everything with them happened in one thread.
Anyway, this version is not tested. The last version I tested was a couple hours ago. I'm tired now and will probably just mess things up if I keep working on this.
See also #8855