new_segment

Prepare a new segment for emission downstream.

This function must only be called by derived sub-classes, and only from the GstBaseSrcClass::create function, as the stream-lock needs to be held.

The format for the segment must be identical with the current format of the source, as configured with set_format.

The format of this must not be gst_format_undefined and the format should be configured via set_format before calling this method.

Parameters:

this	a Src
segment	a pointer to a Segment

Returns:

true if preparation of new segment succeeded.