write: Improve help text of --writer.
[paraslash.git] / m4 / gengetopt / amp_filter.m4
1 args "--no-version --no-help"
2
3 purpose "Amplify the decoded audio stream"
4
5 option "amp" a
6 #~~~~~~~~~~~~~
7 "amplification value"
8 int typestr="number"
9 default="32"
10 optional
11 details="
12 The amplification value determines the scaling factor by
13 which the amplitude of the audio stream is multiplied. The
14 formula for the scaling factor is
15
16 factor = 1 + amp / 64.
17
18 For example, an amplifiction value of zero results in a
19 scaling factor of one while an amplification value of 64
20 means to double the volume.
21 "