Get the input position (byte offset in stream) of the last parsed frame.
This can be used for external seek index building, for example.
It just returns the internally stored offset, regardless of validity --
you ensure that a valid frame has been parsed before!
\param mh handle
\return byte offset in stream
Get the input position (byte offset in stream) of the last parsed frame. This can be used for external seek index building, for example. It just returns the internally stored offset, regardless of validity -- you ensure that a valid frame has been parsed before! \param mh handle \return byte offset in stream