Code/Resource
Windows Develop
Linux-Unix program
Internet-Socket-Network
Web Server
Browser Client
Ftp Server
Ftp Client
Browser Plugins
Proxy Server
Email Server
Email Client
WEB Mail
Firewall-Security
Telnet Server
Telnet Client
ICQ-IM-Chat
Search Engine
Sniffer Package capture
Remote Control
xml-soap-webservice
P2P
WEB(ASP,PHP,...)
TCP/IP Stack
SNMP
Grid Computing
SilverLight
DNS
Cluster Service
Network Security
Communication-Mobile
Game Program
Editor
Multimedia program
Graph program
Compiler program
Compress-Decompress algrithms
Crypt_Decrypt algrithms
Mathimatics-Numerical algorithms
MultiLanguage
Disk/Storage
Java Develop
assembly language
Applications
Other systems
Database system
Embeded-SCM Develop
FlashMX/Flex
source in ebook
Delphi VCL
OS Develop
MiddleWare
MPI
MacOS develop
LabView
ELanguage
Software/Tools
E-Books
Artical/Document
hxmixer.cpp
Package: 142_61_thumb_advanced.rar [view]
Upload User: dangjiwu
Upload Date: 2013-07-19
Package Size: 42019k
Code Size: 8k
Category:
Symbian
Development Platform:
Visual C++
- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxmixer.cpp,v 1.6.36.1 2004/07/09 02:01:10 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 ***** */
- #include "hlxclib/memory.h"
- #include "hxresult.h"
- #include "hxtypes.h"
- #include "hxmixer.h"
- #include "hxcom.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- /************************************************************************
- * Method:
- * CHXMixer::MixBuffer()
- * Purpose:
- * NOTE: This routine may change the Source Buffer contents in order
- * to multiple it by volume
- */
- ULONG32 CHXMixer::MixBuffer
- (
- UCHAR* pSrc
- , UCHAR* pDst
- , ULONG32 ulNumBytes
- , BOOL bChannelConvert
- , UINT16 uVolume
- , UINT16 uBitsPerSample
- , BOOL& bIsDestBufferDirty
- )
- {
- if (!(bIsDestBufferDirty || bChannelConvert || uVolume != 100))
- {
- ::memcpy(pDst, pSrc, ulNumBytes); /* Flawfinder: ignore */
- bIsDestBufferDirty = TRUE;
- return ulNumBytes;
- }
- ULONG32 nSamples = 0;
- ULONG32 i,j;
- LONG32 lFixedVolume = (uVolume*256)/100;
- if (bIsDestBufferDirty)
- {
- if ( uBitsPerSample == 16 )
- {
- short *dst = (short*)pDst;
- short *src = (short*)pSrc;
- LONG32 lTmp = 0;
- if ( !bChannelConvert )
- {
- nSamples = ulNumBytes / 2;
- for(i = 0, j=0; i < nSamples; i++,j++)
- {
- lTmp = *(dst+j) + (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //lTmp = *(dst+j) + (*(src+i));
- // clip if need to
- if ( lTmp > 32767 )
- *(dst+j) = 32767;
- else if ( lTmp < -32768 )
- *(dst+j) = -32768;
- else
- *(dst+j) = (short)lTmp;
- }
- }
- // Add the sample in again if we are converting this from
- // mono to stereo.
- else if ( bChannelConvert )
- {
- short itmp = 0;
- nSamples = ulNumBytes / 2;
- for(i = 0, j=0; i < nSamples; i++,j++)
- {
- lTmp = *(dst+j) + (LONG32) (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //lTmp = *(dst+j) + (*(src+i));
- // clip if need to
- if ( lTmp > 32767 )
- (*(dst+j)) = 32767;
- else if ( lTmp < -32768 )
- (*(dst+j)) = -32768;
- else
- (*(dst+j)) = (short)lTmp;
- // Add this sample in twice for stereo
- itmp = (*(dst+j));
- j++;
- (*(dst+j)) = itmp;
- }
- }
- }
- else if ( uBitsPerSample == 8 )
- {
- UCHAR* dst = pDst;
- UCHAR* src = pSrc;
- LONG32 uTmp = 0;
- for(i = 0; i < ulNumBytes; i++)
- {
- uTmp = (LONG32) *(dst+i) + (LONG32) (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //uTmp = *(dst+i) + (*(src+i)) ;
- // clip if needed
- if ( uTmp > 255 )
- *(dst+i) = 255;
- else
- *(dst+i) = (UCHAR)uTmp;
- }
- }
- }
- else
- {
- if ( uBitsPerSample == 16 )
- {
- short *dst = (short*)pDst;
- short *src = (short*)pSrc;
- LONG32 lTmp = 0;
- if ( !bChannelConvert )
- {
- nSamples = ulNumBytes / 2;
- for(i = 0, j=0; i < nSamples; i++,j++)
- {
- lTmp = (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- // clip if need to
- if ( lTmp > 32767 )
- *(dst+j) = 32767;
- else if ( lTmp < -32768 )
- *(dst+j) = -32768;
- else
- *(dst+j) = (short)lTmp;
- }
- }
- // Add the sample in again if we are converting this from
- // mono to stereo.
- else if ( bChannelConvert )
- {
- short itmp = 0;
- nSamples = ulNumBytes / 2;
- for(i = 0, j=0; i < nSamples; i++,j++)
- {
- lTmp = (LONG32) (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //lTmp = *(dst+j) + (*(src+i));
- // clip if need to
- if ( lTmp > 32767 )
- (*(dst+j)) = 32767;
- else if ( lTmp < -32768 )
- (*(dst+j)) = -32768;
- else
- (*(dst+j)) = (short)lTmp;
- // Add this sample in twice for stereo
- itmp = (*(dst+j));
- j++;
- (*(dst+j)) = itmp;
- }
- }
- }
- else if ( uBitsPerSample == 8 )
- {
- UCHAR* dst = pDst;
- UCHAR* src = pSrc;
- LONG32 uTmp = 0;
- for(i = 0; i < ulNumBytes; i++)
- {
- uTmp = (LONG32) (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //uTmp = *(dst+i) + (*(src+i)) ;
- // clip if needed
- if ( uTmp > 255 )
- *(dst+i) = 255;
- else
- *(dst+i) = (UCHAR)uTmp;
- }
- }
- }
- bIsDestBufferDirty = TRUE;
- return bChannelConvert ? ulNumBytes*2 : ulNumBytes;
- }
- /************************************************************************
- * Method:
- * CHXMixer::ApplyVolume()
- * Purpose:
- * NOTE: This routine simply multiplies input buffer by volume
- */
- void CHXMixer::ApplyVolume
- (
- UCHAR* pSrc
- , ULONG32 ulNumBytes
- , UINT16 uVolume
- , UINT16 uBitsPerSample
- )
- {
- ULONG32 nSamples = 0;
- ULONG32 i;
- LONG32 lFixedVolume = (uVolume*256)/100;
- if ( uBitsPerSample == 16 )
- {
- short *dst = (short*)pSrc;
- short *src = (short*)pSrc;
- LONG32 lTmp = 0;
- nSamples = ulNumBytes / 2;
- for(i = 0; i < nSamples; i++)
- {
- lTmp = (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //lTmp = *(dst+j) + (*(src+i));
- // clip if need to
- if ( lTmp > 32767 )
- *(dst+i) = 32767;
- else if ( lTmp < -32768 )
- *(dst+i) = -32768;
- else
- *(dst+i) = (short)lTmp;
- }
- }
- else if ( uBitsPerSample == 8 )
- {
- UCHAR* dst = pSrc;
- UCHAR* src = pSrc;
- LONG32 uTmp = 0;
- for(i = 0; i < ulNumBytes; i++)
- {
- uTmp = (LONG32) (((LONG32)(lFixedVolume * (*(src+i)))) >> 8);
- //uTmp = *(dst+i) + (*(src+i)) ;
- // clip if needed
- if ( uTmp > 255 )
- *(dst+i) = 255;
- else
- *(dst+i) = (UCHAR)uTmp;
- }
- }
- return;
- }