[FFmpeg-devel] [Patch]libavfilter/vf_owdenoise.c: skip processing when strength is 0

[Michael Niedermayer]

On Tue, Apr 12, 2016 at 10:53:58PM +0800, Yuuki Galaxy wrote:
> It is practical to de-noise only on luma while keeping chroma unchanged.
> 
> However, libavfilter/vf_owdenoise.c always do the Wavelet transform/retransform on all 3 channels without check whether chroma_strength is 0.
> 
> Thus I make this patch. De-noise on Y only for yuv420 is now 1.5 times faster.
> 
> Signed-off-by: Yuuki Galaxy <galaxy001 at gmail.com>
> ---
>  libavfilter/vf_owdenoise.c | 26 +++++++++++++++++++-------
>  1 file changed, 19 insertions(+), 7 deletions(-)

tested, applied

thanks


[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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