[FFmpeg-user] Delay filter reconfiguration

androiddevmar11 androiddevmar11 at gmail.com
Tue Jun 10 14:56:34 CEST 2014

my filter graph looks like this: I have "n" inputs (video files). Each input
is connected to "abuffer". Each "abuffer" to "adelay". Each "adelay" to
"amix". I nead to mix many inputs into one aac file in such way:
1. Get sound frames (starting from 10 second to 15 second) from one input
and mix them to aac file at time stamp lets say 25s to 30s. From the same
input take frames from 17 second to 20 second and mix them at time stamp
lets say 35s to 38s. I assume first I need to seek to 10 second of this
input in order to be at correct place in file. Delay filter should be
configured with 25000ms (place where I want to mix to). After firts part of
frames are mixed I need to reconfigure delay filter. Next frames should be
added starting from 35s. Should I reconfigure delay filter with value 10

In other words I want to take frames from "n" inputs from any time and add
them to aac file at any place.

I am trying to free delay filter, recreate it with new parameter and
recreate links in graph but it is not working. Is it good approach? Thank
you for help and hints.

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