Dynamically changing the pipeline

[Tim Müller]

On Wed, 2018-07-11 at 16:06 +0200, Alexander Binzberger wrote:

Hi Alexander,

Lots of stuff to process in here.

In general, you can't just shut down filesrc and restart it with a new
file and expect the demuxer downstream to just work on the new file,
that's not really how things work from a data processing perspective in
GStreamer. You need to shut down or replace both filesrc ! demuxer.

If you want to support seeking across chunks then you need to use
splitfilesrc. The best approach might be to add some new API to
splitfilesrc to support specifying or filtering the files to load, and
to add new files on the fly.

The state change warning you got may have been because you were trying
to shut down an element or the pipeline from within its own a streaming
thread (e.g. pad probe callback or so). Which is not allowed. Without
seeing the code I can only guess though.

Cheers
 -Tim

-- 
Tim Müller, Centricular Ltd - http://www.centricular.com

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