[mythtv-users] H.264 Encoding - Need for a Command Line Tool for Analyzing Video Sources

[Joel Turner]

On Nov 28, 2006, at 3:48 PM, Steven Adeff wrote:

>
> check gossamer for the script I posted to convert to "HR.HDTV". It has
> mplayer commands for getting most of that information. original
> bitrate can be tricky due to variable bitrate, your best bet for this
> if you want an average is to take the file size and movie length and
> do some math. As for progressive/interlaced, this is even trickier,
> though you can make some assumptions like 1280x720=720p=progressive,
> 1920x1080=1080i=interlaced, PVR content is interlaced, etc.
>
> --  
> Steve
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Thanks Steve.  This is a great help.  The mencoder manual has a lot  
of good information on how to determine interlaced vs progressive and  
tecline.  I will need to figure out a way to deal with mixed  
material.  A good example is one of the Star Wars movies that were on  
Cinemax recently which switches between 30000/1001 fps NTSC and  
24000/1001 fps progressive.