[mythtv-users] Encoding to h264 to save space

Brad DerManouelian myth at dermanouelian.com
Tue Feb 19 02:45:02 UTC 2008

On Feb 18, 2008, at 6:34 PM, Brian Wood wrote:

> Chris Isip wrote:
>> I am able to shrink 1 hour of video to approximately 150 MB at 200  
>> kbit
>> with ffmpeg using h264.  Seems to work well except with seeking.  I
>> wonder if this is a keyframe issue.  When I forward or rewind,  
>> there is
>> distortion for a few seconds and then the video fixes itself.  If I
>> forward or rewind before the video is fixed, the progress bar seems  
>> to
>> jump back.  Seeking is more reliable when the distrotion is allowed  
>> to
>> clear first.  Also, I cannot jump to the very first frame of the
>> recording.  If I exit the recording and play it again, I start on the
>> first frame.  Here is a copy of my latest script.  Single pass for  
>> now
>> (hoping to go to 2 pass).  I was wondering if anyone could give me  
>> any
>> ideas as to how to fix this issue.
> Can't help you on the seek problem, but:
> What does it look like at that level of compression? I'd think that
> 150MB/hour would look like crap (technical term), even on an iPod.
> beww

Agreed. I do 1GB/hour for my iPod recordings and they're beautiful on  
my iPod and iPhone. Anything less and I can't stand watching it.

More information about the mythtv-users mailing list