[Bug 761163] videocrop: Access violation reading

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=761163

--- Comment #11 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> ---
In _transform_frame, can move the call to _set_info after the blitting, which
avoids most of the crashes, but not all: _set_info is not only called from
_transform_frame, but as a virtual function, and videocrop doesn't have control
over when this is called. I suppose one could try to change _set_info to only
schedule che change, and perform it only on the next call to _transform_frame
(after the blitting). Since _set_info calls gst_base_transform_set_passthrough,
this would also delay that, which might or might not cause trouble but it seems
it's worth a shot. I'll try that.

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