NULL State Synchronization

[ht techdev]

Hi

On gstreamer 1.4.5, running on Centos 7.2, I have a use case that I am not
sure I am handling/understanding correctly:

1-      Application start a pipeline, i.e., sets the state to PLAY

2-      After an arbitrary amount of time, it sets the state to NULL

3-      Current Problem:

a.       A decoder plugin just prior to pushing its frame, after NULL state
, attempts to allocate output frame, which it fails and consequently issues
a GST_ELEMENT_ERROR 

b.      This in turn stops the main application, as we are tripping on error
messages

Question is, whether it is the plugin responsibility to block inside _stop,
till current frame is processed, or gstreamer is responsible for such
synchronizations.

Cheers,

 

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