[mythtv-commits] Ticket #8937: 1080i previews include pixels that are not meant to be active
MythTV
mythtv at cvs.mythtv.org
Wed Sep 15 04:53:27 UTC 2010
#8937: 1080i previews include pixels that are not meant to be active
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Reporter: beirdo | Owner: danielk
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: Trunk Head
Severity: low | Keywords:
Ticket locked: 0 |
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1080i is 1920x1080 by definition, but due to H.264 and MPEG-2 macroblock
size, etc, it is decoded as 1920x1088. The bottom 8 pixels in the frame
are not meant to be active, and should be removed. For playback (and I
believe commercial detection), we have dealt with this already, but in
generating the previews, we have not.
I have attached a fairly simple patch that will take 1920x1088 frames in
the preview generation, and crop off the bottom 8 pixels to recreate
1920x1080 before resizing to the preview size.
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Ticket URL: <http://svn.mythtv.org/trac/ticket/8937>
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