[FFmpeg-user] a -vf for broadcast safe

[Paul B Mahol]

On 12/30/15, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Dave Rice <dave <at> dericed.com> writes:
>
>> The input file appears to be in broadcast range
>> (yuv422p or yuv444p) but contains values that are
>> not in broadcast range.
>
> I don't understand this sentence.
> Are you aware that - afaik and I am everything but
> a broadcast professional - material that conforms
> to "broadcast" is allowed to contain (a limited
> number of) samples that are outside the usual
> limits?
>
> In any case, you will have to decide if you want
> to change the dynamics (contrast) of the image
> or if you want to clip. I had not used geq before
> but I suspect it supports clipping.

Using lut filter for clipping instead should be faster and also
supports >8 bit depth.

> (I am not convinced you should clip though.)
>
> For the sample command line that you provided
> there is no bug that can be fixed with another
> scaler.
>
> Carl Eugen
>
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