[mythtvnz] Cutting H.264 DVB-T files with ffmpeg without transcoding

[David Moore]

Morgan Read wrote:
> 
> Look for the "P"s and "B"s from peoples lips, they're percussive sounds
> and you can sync the "P"s and "B"s from the audio to them - the attack
> of the audio should match the 1st frame the lips part.  Unless the rate
> of picture and audio vary against each other, you should only have to do
> this once per recording:)
> Have fun.
> M.
>  
Thanks Morgan. Another technique I have used to check sync is percussive 
sounds like clapping, gunshots or similar. But I only use these to check 
the final product. I don't really want to manually sync reordings if I 
can avoid it which I have so far done albeit with a fair bit of hoop 
jumping. :-)