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| author | George Boyle <george@spotify.com> | 2017-07-19 15:11:44 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2017-07-19 19:51:04 +0200 |
| commit | 6e156075b09053c712fa09c142e8c6cc7dddbff5 (patch) | |
| tree | 3856758a1f93df821aae8ed3c686f9f6040c06e3 /doc/filters.texi | |
| parent | f04ef268164f7e88bef809fb028c6fa01b024ea3 (diff) | |
| download | ffmpeg-6e156075b09053c712fa09c142e8c6cc7dddbff5.tar.gz | |
avfilter: Add blue and violet noise generation filters
For the blue and violet noise, I took the pink and brown noise
respectively and subtracted the offsets instead of adding them. When I
eyeball the frequency spectrum of the resulting outputs it looks correct
to me, i.e. the blue graph appears to be a mirror image of the pink, and
the same can be said of the violet and the brown. I did not do anything
else to confirm the correctness.
Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 2708fdb1df..dd88636bb9 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -4471,8 +4471,8 @@ Specify the duration of the generated audio stream. Not specifying this option results in noise with an infinite length. @item color, colour, c -Specify the color of noise. Available noise colors are white, pink, and brown. -Default color is white. +Specify the color of noise. Available noise colors are white, pink, brown, +blue and violet. Default color is white. @item seed, s Specify a value used to seed the PRNG. |