[mythtv-users] Suggested bitrate for transcoding HD Mpeg 2 to Mpeg 4

Raymond Wagner raymond at wagnerrp.com
Sun May 29 21:36:33 UTC 2011

On 5/29/2011 17:33, Ian Evans wrote:
> On Mon, May 30, 2011 at 5:22 AM, Richard Morton
> <richard.e.morton at gmail.com>  wrote:
>> Hi,
>> I am not sure what you are asking... MPEG4 is commonly referred to but
>> is in fact a suite of codecs including at least 2 video codecs an
>> audio codec and a container format.
> I'm not quite sure myself...just basing this on Setup ->  TV Settings
> ->  Profile Groups ->  Transcoders and settings like Codec: MPEG-4
> Bitrate:2400
> e.g. http://tips.myhdbox.com/2006/05/tip-4-transcode-profiles-for-hdtv.php

That's MPEG4 Part 2 (ASP).  Specifically, that is the ffmpeg 
implementation of the same codec used by XviD, and formerly used by 
DivX.  Unless you specifically need this codec for compatibility with 
some device, you really shouldn't bother using it.

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