#4910: support for nl-means denoise filter
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             Reporter:  ponpon       |                    Owner:  ubitux
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:  avfilter
              Version:  git-master   |               Resolution:  fixed
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by ponpon):

 Replying to [comment:17 ubitux]:
 i think the default value is too strong for SD video and slow for HD.
 i try to change them in source from
 {{{
 static const AVOption nlmeans_options[] = {
     { "s",  "denoising strength", OFFSET(sigma), AV_OPT_TYPE_DOUBLE, {
 .dbl = 1.0 }, 1.0, 30.0, FLAGS },
     { "r",  "research window",                   OFFSET(research_size),
 AV_OPT_TYPE_INT, { .i64 = 7*2+1 }, 0, 99, FLAGS },
 }}}
 to
 {{{
 static const AVOption nlmeans_options[] = {
     { "s",  "denoising strength", OFFSET(sigma), AV_OPT_TYPE_DOUBLE, {
 .dbl = 0.85 }, 0.000001, 30.0, FLAGS },
     { "r",  "research window",                   OFFSET(research_size),
 AV_OPT_TYPE_INT, { .i64 = 3*2+1 }, 0, 99, FLAGS },
 }}}
 doesn't this brake the work of nlmeans?

 is support for SIMD completed?

 i have requests for nlmeans. should i write them here or open a new
 ticket?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4910#comment:19>
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