[FFmpeg-user] Levels and Primaries

[Paul B Mahol]

On 2/4/14, Rio Kierkels <riokierkels at gmail.com> wrote:
> Thanks Andy,
>
> If this is true it's good news for ffmpeg, bad news for the other apps and
> our current delivery pipeline.
> My next step would be to create a very basic mxf parser to determine the Y'
> values but as I've said my C skills are sub par to my python skills.
> Does anybody have some other nice tool to determine levels to cross check
> this. Or maybe someone who can verify that the ffmpeg mxf parser and
> mpeg2video decoder doesn't do anything to the levels when converting it to
> a waveform?

The only thing that could change waveform is colorspace change.
It's not histogram filter job to play with colorspace stuff.
You can see if swscale was used to do colorspace conversion with
verbose ffmpeg output.

>
>
> On 4 February 2014 01:04, Phil Rhodes <phil_rhodes at rocketmail.com> wrote:
>
>> > It just seemed a bit excessive to add them to the original post.
>>
>> It is.
>>
>> P
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>
>
>
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