HM decoder crashes when there is no payload_bit_equal_to_zero at the end of a SEI message. Specifically, the following code

READ_CODE (payloadBitsRemaining-1, dummy, "payload_bit_equal_to_zero");

will trigger an assert failure when payloadBitsRemaining is equal to 1

assert ( uiLength > 0 );

A patch is attached to fix this issue.

Best regards,
Michael