[mythtv-users] Ad removal and lossless transcode for mpeg2 recordings

[Raymond Wagner]

On 10/17/2013 7:37 AM, John Pilkington wrote:
> Now we record digital streams assembled at source, and most edit 
> points, particularly those at programme start, end, and ad-breaks, 
> occur at keyframes.

That has not been my experience.  At least my local stations tend to 
re-encode their video before transmission, and do not do any dynamic GOP 
restructuring to align with scene transitions.  This is particularly 
visible when they do their evening news teasers at the end of a 
commercial break.