getimgpa.c
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- /* Header File Includes */
- #include "dllindex.h"
- #include "h261func.h"
- #include "h261defs.h"
- short getImgParms( short formatCap, short *numGOBs, short *numMBs, long *imgSize,
- long *lumaSize, long *chromaLineLength, long *chromaRows, long *maxsym )
- {
- switch ( formatCap )
- {
- case SQCIF:
- *chromaLineLength = (long)64;
- *chromaRows = (long)48;
- *numGOBs = 6;
- *numMBs = (8*6);
- break;
- case QCIF:
- *chromaLineLength = (long)88;
- *chromaRows = (long)72;
- *numGOBs = 9;
- *numMBs = (11*9);
- break;
- case CIF:
- *chromaLineLength = (long)176;
- *chromaRows = (long)144;
- *numGOBs = 18;
- *numMBs = (22 * 18);
- break;
- case CIF4:
- *chromaLineLength = (long)352;
- *chromaRows = (long)288;
- *numGOBs = 18;
- *numMBs = 4 * 22*18;
- break;
- case CIF16:
- *chromaLineLength = (long)704;
- *chromaRows = (long)576;
- *numGOBs = 18;
- *numMBs = 16 * 22*18;
- break;
- default:
- return ( UNKNOWN_PICTURE_FORMAT );
- break;
- }
- *imgSize = *numMBs * (256 + 2 * 64);
- *lumaSize = *numMBs * 256;
- *maxsym = *imgSize;
- return ( 0 );
- }