Add noise on video input frame.

The filter accepts the following options:

all_seed, c0_seed, c1_seed, c2_seed, c3_seed

Set noise seed for specific pixel component or all pixel components in case of all_seed. Default value is 123457.

all_strength, alls, c0_strength, c0s, c1_strength, c1s, c2_strength, c2s, c3_strength, c3s

Set noise strength for specific pixel component or all pixel components in case all_strength. Default value is 0. Allowed range is [0, 100].

all_flags, allf, c0_flags, c0f, c1_flags, c1f, c2_flags, c2f, c3_flags, c3f

Set pixel component flags or set flags for all components if all_flags. Available values for component flags are:

a

averaged temporal noise (smoother)

p

mix random noise with a (semi)regular pattern

t

temporal noise (noise pattern changes between frames)

u

uniform noise (gaussian otherwise)

noise=alls=20:allf=t+u