dynamic pipeline -- notify errors during negotiations

[Nick_law]

Hi I am no pro but I can tell you what I have found thus far.

My assumption is that you already have a a bus signal watch?

gst_bus_add_signal_watch(pipeline.bus);

you can have a look at the tutorials for setting up the bus and a callback
for error messages

https://gstreamer.freedesktop.org/documentation/tutorials/basic/short-cutting-the-pipeline.html?gi-language=c
https://gstreamer.freedesktop.org/documentation/tutorials/basic/toolkit-integration.html?gi-language=c

What I did was also create a .dot file where the Gst_error_cb callback is
called to then be able to see what the pipeline looked like when it had an
error.

But something I didn't quite catch from the tutorials was the setting of
environment paths to change debug level and also have the debug output to a
file.

https://gstreamer.freedesktop.org/documentation/tutorials/basic/debugging-tools.html?gi-language=c
https://gstreamer.freedesktop.org/documentation/gstreamer/running.html?gi-language=c

on linux
```
export GST_DEBUG=4 (or whatever level you want)
export GST_DEBUG_FILE=/tmp/error.log (don't do this if you just want to see
the errors as they happen and have pretty colours etc)
```

I hope this helps
Nick



--
Sent from: http://gstreamer-devel.966125.n4.nabble.com/