[FFmpeg-devel] [PATCH] libavfilter: temporarily remove DNN framework and vf_sr filter

Ronald S. Bultje rsbultje at gmail.com
Fri Jul 27 05:19:30 EEST 2018


Hi,

On Thu, Jul 26, 2018 at 10:04 PM, Pedro Arthur <bygrandao at gmail.com> wrote:

> If you compare NN weights with quantization tables they are pretty
> similar


https://chromium.googlesource.com/webm/libvpx/+/3b9c19aaa7b8830a896c5f578a3ce6c6a7953947%5E%21/#F0

So, that one tiny single function is how VP9/AV1 quant tables are generated.

Or, the HEVC/H264 ones, they are even simpler: exp2(qp/6).

Are NN weights a single, one-line (10-character) expression? Please
elaborate. Why isn't that 10-character function documented anywhere?

Ronald


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