[mythtv-commits] Ticket #10466: VDA playback makes mythfrontend hang with some videos
MythTV
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Sat Mar 17 02:34:37 UTC 2012
#10466: VDA playback makes mythfrontend hang with some videos
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Reporter: jyavenard | Owner: jyavenard
Type: Bug Report - General | Status: closed
Priority: minor | Milestone: 0.25
Component: MythTV - General | Version: Unspecified
Severity: medium | Resolution: fixed
Keywords: | Ticket locked: 0
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Changes (by Github):
* status: assigned => closed
* resolution: => fixed
* milestone: unknown => 0.25
Comment:
Fix VDA playback for some videos.
This fix allows playing BBC videos.
Apple Video Decode Acceleration framework doesn't handle interlaced h264
properly. So add a quick test to check if video is interlaced or not.
While our original VDA code was heavily based on XBMC implementation, it
introduced some errors ; there were some minor leaks and some necessary
broken h264 encoding workarounds weren't implemented (AVD just hang on
those)
Additionally, XBMC has fixed bugs since and the fixes never made it to
mythtv.
Tracking what changed where was too time consuming, so shamelessly remove
our customisation and re-use XBMC initialisation code as-is.
Additionally, we were using a non-official ffmpeg call
(ff_find_start_code) which has been renamed and moved since; so the
previous code would have been broken during the next ffmpeg resync.
FFmpeg master now supports VDA decoding, but their code doesn't handle any
of the borderline scenarios handled here. Making it pretty much useless
for the time being
Fixes #10466
Branch: master
Changeset: 2c08a7d1788b4a8183a70c288be0cec46a3f36d0
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Ticket URL: <http://code.mythtv.org/trac/ticket/10466#comment:2>
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