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Ticket #10984: Improve closed caption performance

 

 

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noreply at mythtv

Aug 9, 2012, 8:25 AM

Post #1 of 2 (65 views)
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Ticket #10984: Improve closed caption performance

#10984: Improve closed caption performance
-----------------------------------+-------------------------
Reporter: stichnot | Owner: stichnot
Type: Developer Task | Status: new
Priority: minor | Milestone: 0.27
Component: MythTV - Captions | Version: Master Head
Severity: medium | Keywords:
Ticket locked: 0 |
-----------------------------------+-------------------------
High CPU usage when displaying "real-time" character-by-character CEA-708
captions, with "-v vbi", on an Atom frontend, resulting in stuttering.
May also be true for CEA-608 captions. Unacceptable.

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Ticket URL: <http://code.mythtv.org/trac/ticket/10984>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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noreply at mythtv

Sep 12, 2012, 10:55 PM

Post #2 of 2 (30 views)
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Re: Ticket #10984: Improve closed caption performance [In reply to]

#10984: Improve closed caption performance
-------------------------------+-----------------------------
Reporter: stichnot | Owner: stichnot
Type: Developer Task | Status: new
Priority: minor | Milestone: 0.27
Component: MythTV - Captions | Version: Master Head
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
-------------------------------+-----------------------------

Comment (by Jack Thomasson <jkt@…>):

In [changeset:30f6e33cc25191a8b57492cdc1868845eaa713d8/mythtv]:
{{{
#!CommitTicketReference repository="mythtv"
revision="30f6e33cc25191a8b57492cdc1868845eaa713d8"
Fixes #11072. Improve cc708 thread safety.

There still appear to be potential race conditions, which can be fixed
by adding more locking. However, this will have an unknown
performance impact, so we'll address it after the release.
Refs #10984.

Signed-off-by: Jim Stichnoth <jstichnoth [at] mythtv>
}}}

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Ticket URL: <http://code.mythtv.org/trac/ticket/10984#comment:1>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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