1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 /* This code is in the public domain. 13 ** Version: 1.1 Author: Walt Karas 14 */ 15 16 #include "hmm_intrnl.h" 17 U(true_size)18U(size_aau) U(true_size)(void *payload_ptr) 19 { 20 register head_record *head_ptr = PTR_REC_TO_HEAD(payload_ptr); 21 22 #ifdef HMM_AUDIT_FAIL 23 AUDIT_BLOCK(head_ptr) 24 #endif 25 26 /* Convert block size from BAUs to AAUs. Subtract head size, leaving 27 ** payload size. 28 */ 29 return( 30 (BLOCK_BAUS(head_ptr) * ((U(size_aau)) HMM_BLOCK_ALIGN_UNIT)) - 31 HEAD_AAUS); 32 } 33