[mythtv-users] Quicktime 1080p mov files smoother than 720p mkv (Debian)

[Robert McNamara]

2009/4/1 Jongi <jongitech at gmail.com>:
> I ran a 1080p Quicktime mov file on my box from harddrive (Asus M3N78-VM M/B
> with video over HDMI) and the playback is smooth. However when I run 720p
> mkv files there is some jerkiness. Both are playing over "mplayer -fs -zoom
> -quiet -vo xv %s". How should I be running the mkv files? And can I set
> global player settings to that and not impact mov files negatively?
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MOV and MKV are just containers, they don't give any information about
the data contained within.  Likewise, 720p and 1080p are just
resolutions and don't really mean anything with regards to playback.
I could generate a 480i file that would choke a supercomputer.  The
relevant pieces of information are codecs, bitrates, and encoding
options.  The Apple trailers are low (2-3 Mbit) bitrate CAVLC h.264
last I checked.  What bitrate and encoding options did you use when
encoding the MKV?  Is it CABAC h.264?  higher bitrate than 2-3 Mbit?
These are the things that make it hard to play, not the resolution or
container.

Robert