Insert audio into the middle of a file

[Philipp Wagner]

Hi,

I'm developing a software which needs to insert (recorded) audio in the
middle of a Speex-encoded file in the default OGG container. How could I
do that? I know that with filesink I can append to a file, but is there
some way not to append but to insert and/or overwrite at a certain time
(e.g. at the current playback position, record and insert new audio).
The whole thing is going to be a dictation software, that's why this
feature is needed.

Any pointers how that could be done?

Philipp
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[Xabier Rodriguez Calvar-2]

O Dom, 13-11-2011 ás 13:28 +0100, Philipp Wagner escribiu:

> I'm developing a software which needs to insert (recorded) audio in
> the
> middle of a Speex-encoded file in the default OGG container. How could
> I
> do that? I know that with filesink I can append to a file, but is
> there
> some way not to append but to insert and/or overwrite at a certain
> time
> (e.g. at the current playback position, record and insert new audio).
> The whole thing is going to be a dictation software, that's why this
> feature is needed.
>
> Any pointers how that could be done?

I think you are looking for Gstreamer Editing Services [1]. Have a look
at the documentation. Basically, I think you need to create a timeline
with an audio track and add a layer with the three file sources. Then
create a timeline pipeline, set it to render and set it to playing until
it finishes.

[1]
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/index.html

--
Xabier Rodríguez Calvar
Software Engineer
IGALIA http://www.igalia.com

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