[FFmpeg-user] aspect ratio changes in the middle of the stream

Tim Nicholson nichot20 at yahoo.com
Fri Sep 6 18:30:55 CEST 2013

On 06/09/13 16:15, Carl Eugen Hoyos wrote:
> Tim Nicholson <nichot20 <at> yahoo.com> writes:
>> No, I was being slightly simplistic/vague in my 
>> description sorry to confuse. I think that padding to 
>> 16:9 on a frame by frame basis is what is wanted
> and I believe this is the current default with ffmpeg, 
> so so far, I don't know what the problem is.

The amount of padding is fixed, not dynamic as required (in the manner
outlined below) for variable aspect ratio source lmaterial.

>> the principle is what I was after, i.e, get one filter
>> (aspect, padding) to dynamically alter its parameters, 
>> frame by frame based upon frame rate metadata 
>> extracted from each frame.
> This is of course a very interesting new feature.
> (I wonder if filter plus metadata would really be enough.)

> Carl Eugen
> _[..]


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