[FFmpeg-devel] [PATCH 2/2] lavc/dxvenc: migrate DXT1 encoder to lavu hashtable

[Andreas Rheinhardt]

Connor Worley:
>>
>> How much would one gain if the hash function knew that key_size and
>> val_size are four?
>>
> 
> That yields a nice 10-20% speedup on my machine. Are you thinking of macros
> to parametrize key/val size, or possibly optimized versions for common
> sizes?

I am thinking about it not being public at all; as long as we have only
one user...

- Andreas

PS: Is the speedup only for the hashing part or for overall decoding? Is
the comparison the current version of your patch or something that
already has my comments incorporated?