#124 Fade out should allow stop-time="end of the file" with pipes

[robs]

Originally Submitted as a bug By:
Richard Neill - richardneill Date Submitted:
2008-07-06 02:42

If I want to script fading a file in and out, then stop-time is not
necessarily known beforehand.

I know it's possible to find it out, but it would be really useful if sox
would allow you to omit stop-time, and assume you just mean "the end of the
file".

Comment 2008-10-27

SoX now has support for this in some cases. So this feature request covers pipes and cases where effects alter audio length.

It could be implemented by having fade maintain a buffer (tmpfile?) of the number of samples needed for the fadeout.