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

Pedro Arthur bygrandao at gmail.com
Fri Jul 27 17:16:08 EEST 2018


Hi,

2018-07-27 8:12 GMT-03:00 Ronald S. Bultje <rsbultje at gmail.com>:
>
> NN is different. The exposed software *uses* but does not *generate* the
> coefficients. In fact, the meaning of most coefficients is completely
> opaque. They are just multiplier and addition constants with no obvious
> relationship to reality, other than that they were generated by some
> magical process that tells us that statistically (??), this bears
> resemblence to some trained form of reality. You want to adjust behaviour
> for a defined different outcome? You'll have to retrain. That's all fine,
> don't get me wrong, but we need to know how to retrain since it's not
> obvious to us. Just tell us what process and what data were used to get the
> outcome so that we can get a different outcome if we so choose (that *is*
> freedom to modify)?
>
> Please document (and make available) all such information for the
> re-training.
We already did it [1] the repo provides all scripts to download the
data and run the training and also generates the header with weights
readily to use in ffmpeg.
When Jean-Baptist raised this issue we worked to provide all the
necessary scripts to perform training, reading the replies above, it
seems no one is  aware of it (not even J-B).
Isn't [1] enough? whats is missing then? why no one asked for whatever
may be missing in the original email when we provided the link to the
repo?


[1] - https://github.com/HighVoltageRocknRoll/sr


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