[MPlayer-users] cropping 4:3 left and right to form 16:9

[Anthony Griffiths]

On Thu, Sep 28, 2017 at 7:24 PM, Stephen Mollett
<molletts-at-yahoo.com at ffmpeg.org> wrote:
> Hi,
>
> On 28/09/17 09:34, Anthony Griffiths wrote:
>> The netbook has a 16:9 screen set at res 1024 x 600 but the
>> inbuilt webcam in the lid is a 4:3 cam, I think its native res
>> is 640x480. ...
>> I simply want to inflate the cam image so it loses the left and right
>> black stripes.
>
> If it is 640x480, have you tried adding '-vf crop=640:375' to the
> command line? That should crop the video to the same aspect ratio as the
> screen (slightly taller than 16:9).
>
> Hope this helps,
> Stephen


it certainly did help stephen thankyou, '-vf crop=640:375' worked perfectly.