Problem with ffmpeg or the source?

[Shevek]

On 17 December 2010 16:49, Andy Bircumshaw <andy at networkned.co.uk> wrote:
>
> I guess I associate "cropping" somehow with aspect ratio, because the message's reference to that reminded me of this thread on the BBC iPlayer forums:
> http://www.bbc.co.uk/dna/mbiplayer/NF13735683?thread=7927082
> I can't help but wonder if this problem might be influenced by the Beeb posting the shows in the wrong format, or something. Or maybe I'm just trying to blame them because I'm mad about the other shows I've missed recently because they've been unavailable.
>

I think it is more to do with cropping of the video frame. If you look
at the flv before ffmpeg remuxes it, it has a repetition of the last
video line at the bottom.

You can see this in the griddle pan at the bottom of this:
http://paje.ro/wp-content/uploads/2010/12/hd_flv.png

There is _possibly_ something in the video stream which tells a player
to crop this and that is what ffmpeg is complaining about.

Blu Ray is similar - it is actually 1920x1088 but all players crop it
to 1920x1080.