diff -r 000000000000 -r bde4ae8d615e os/mm/mmlibs/mmfw/Codecs/Src/Gsm610CodecCommon/gsm610fr.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/mm/mmlibs/mmfw/Codecs/Src/Gsm610CodecCommon/gsm610fr.cpp Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,526 @@ +// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). +// All rights reserved. +// This component and the accompanying materials are made available +// under the terms of "Eclipse Public License v1.0" +// which accompanies this distribution, and is available +// at the URL "http://www.eclipse.org/legal/epl-v10.html". +// +// Initial Contributors: +// Nokia Corporation - initial contribution. +// +// Contributors: +// +// Description: +// Polymorphic DLL implementation of GSM 6.10 full rate (FR) speech coder +// and decoder objects. +// This codec is based on ANSI C simulation codes. For this implementation +// (polymorphic DLL) the original ANSI C codes have been modified slightly: +// - The original .c files were renamed to .cpp files. +// - All global varibles (codec's state) are now encoder's or decoder's +// private member variables. +// - Because codec's state is in the codec object, an extra variable - +// a pointer codec object - have been added to some original routines. +// - Global tables are now const C++ tables in tables.h header file. +// - VAD and DTX modules have been removed from the original routines. +// - Due to error in GNU tool chain all array indexes of type [i-1] in +// rpeltp.cpp have been removed and changed to [j] type. +// - multr, L_add, L_mac from basicop.cpp inlined +// INCLUDES +// +// + +#include "gsm610fr.h" +#include "codec.h" +#include + + +// LOCAL FUNCTIONS +//=================================================================== +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + ConstructL + + This function implements the second phase construction of GSM610FR_Encoder + class. Function binds the encoder to given input and output streams and + resets encoder. + + Parameters: RReadStream aInStrm Handle to input stream (16 bit + PCM speech data) + RWriteStream aOutStrm Handle to output stream (encoded + speech data) + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Encoder::ConstructL() + { + ::reset_encoder(this); + iOddFrame = TRUE; + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + ~GSM610FR_Encoder + + Empty encoder destructor. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C CGSM610FR_Encoder::~CGSM610FR_Encoder() + { + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + StartL + + Start encoder object. Initialize codec status. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Encoder::StartL() + { + ::reset_encoder(this); + iOddFrame = TRUE; + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + ExecuteL + + Execute encoder object. Read one speech frame from the input stream, + RPELTP encode it and write the encoded frame to output stream. + + Parameters: none + + Return Values: none + + Leave Handling: + + If the length of data available in the input stream is less than + FRAMESIZE then the function leaves with KErrEof. + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Encoder::ExecuteL(TUint8* aInBuf, TUint8* aOutBuf) +{ + TInt16* inBufPtr = (TInt16*) aInBuf; + + + for (TInt frame = 0; frame < 2; frame++) + { + ::RPELTP_encoder(this, inBufPtr, &iCodeBuf); + + if ( iOddFrame ) + { + PackFrame0 (&iCodeBuf, (TInt8*) aOutBuf); + } + else + { + PackFrame1 (&iCodeBuf, (TInt8*) aOutBuf); + } + + iOddFrame = !iOddFrame; + inBufPtr += FRAMESIZE; + } + +} +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + StopL + + Stop encoder object. Flush out last frames, if necessary. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Encoder::StopL() + { + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + PackFrame0 + + Pack the codewords of the even frame into pack buffer. + + Packing as in MS gsm610 encoder. + + Parameters: struct codes* aCodeBuf Code words for one speech frame. + + Return Values: none + + +----------------------------------------------------------------------------- +*/ +void CGSM610FR_Encoder::PackFrame0(struct codes* aCodeBuf, TInt8* pbuf) + { + TInt16* LAR = aCodeBuf->LARc; + + // pack the LARc[0..7] into the first 4.5 bytes + *pbuf++ = (TUint8)(((LAR[0] ) & 0x3F) | ((LAR[1] << 6) & 0xC0)); + *pbuf++ = (TUint8)(((LAR[1] >> 2) & 0x0F) | ((LAR[2] << 4) & 0xF0)); + *pbuf++ = (TUint8)(((LAR[2] >> 4) & 0x01) | ((LAR[3] << 1) & 0x3E) | ((LAR[4] << 6) & 0xC0)); + *pbuf++ = (TUint8)(((LAR[4] >> 2) & 0x03) | ((LAR[5] << 2) & 0x3C) | ((LAR[6] << 6) & 0xC0)); + *pbuf = (TUint8)(((LAR[6] >> 2) & 0x01) | ((LAR[7] << 1) & 0x0E)); + + // pack Nc, bc, Mc, xmaxc, and xMc for each of the 4 sub-frames + for(TInt i = 0; i < 4; i++) + { + struct sfcodes& c = aCodeBuf->sfc[i]; + *pbuf++ |= ((c.Nc << 4) & 0xF0); + *pbuf++ = (TUint8)(((c.Nc >> 4) & 0x07) | ((c.bc << 3) & 0x18) | ((c.Mc << 5) & 0x60) | ((c.xmaxc << 7) & 0x80)); + *pbuf++ = (TUint8)(((c.xmaxc >> 1) & 0x1F) | ((c.xMc[0] << 5) & 0xE0)); + *pbuf++ = (TUint8)((c.xMc[1] & 0x07) | ((c.xMc[2] << 3) & 0x38) | ((c.xMc[3] << 6) & 0xC0)); + *pbuf++ = (TUint8)(((c.xMc[3] >> 2) & 0x01) | ((c.xMc[4] << 1) & 0x0E) | ((c.xMc[5] << 4) & 0x70) | ((c.xMc[6] << 7) & 0x80)); + *pbuf++ = (TUint8)(((c.xMc[6] >> 1) & 0x03) | ((c.xMc[7] << 2) & 0x1C) | ((c.xMc[8] << 5) & 0xE0)); + *pbuf++ = (TUint8)((c.xMc[9] & 0x07) | ((c.xMc[10] << 3) & 0x38) | ((c.xMc[11] << 6) & 0xC0)); + *pbuf = (TUint8)(((c.xMc[11] >> 2) & 0x01) | ((c.xMc[12] << 1) & 0x0E)); + } + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Encoder + + PackFrame1 + + Pack the codewords of the odd frame into pack buffer. + + Packing as in MS gsm610 encoder. + + Parameters: struct codes* aCodeBuf Code words for one speech frame. + + Return Values: none + + +----------------------------------------------------------------------------- +*/ +void CGSM610FR_Encoder::PackFrame1(struct codes* aCodeBuf, TInt8* pbuf) + { + TInt16* LAR = aCodeBuf->LARc; + + pbuf += (PACKSIZE / 2); + TInt8 pbufZero = pbuf[0]; + + // pack the LARc[0..7] into the first 4.5 bytes, starting with the msb of the first byte + *pbuf++ = (TUint8) (pbufZero | ((LAR[0] << 4) & 0xF0)); + *pbuf++ = (TUint8)(((LAR[0] >> 4) & 0x03) | ((LAR[1] << 2) & 0xFC)); + *pbuf++ = (TUint8)(((LAR[2] ) & 0x1F) | ((LAR[3] << 5) & 0xE0)); + *pbuf++ = (TUint8)(((LAR[3] >> 3) & 0x03) | ((LAR[4] << 2) & 0x3C) | ((LAR[5] << 6) & 0xC0)); + *pbuf++ = (TUint8)(((LAR[5] >> 2) & 0x03) | ((LAR[6] << 2) & 0x1C) | ((LAR[7] << 5) & 0xE0)); + + // pack Nc, bc, Mc, xmaxc, and xMc for each of the 4 sub-frames + for(TInt i = 0; i < 4; i++) + { + struct sfcodes& c = aCodeBuf->sfc[i]; + *pbuf++ = (TUint8)((c.Nc & 0x7F) | ((c.bc << 7) & 0x80)); + *pbuf++ = (TUint8)(((c.bc >> 1) & 0x01) | ((c.Mc << 1) & 0x06) | ((c.xmaxc << 3) & 0xF8)); + *pbuf++ = (TUint8)(((c.xmaxc >> 5) & 0x01) | ((c.xMc[0] << 1) & 0x0E) | ((c.xMc[1] << 4) & 0x70) | ((c.xMc[2] << 7) & 0x80)); + *pbuf++ = (TUint8)(((c.xMc[2] >> 1) & 0x03) | ((c.xMc[3] << 2) & 0x1C) | ((c.xMc[4] << 5) & 0xE0)); + *pbuf++ = (TUint8)(((c.xMc[5]) & 0x07) | ((c.xMc[6] << 3) & 0x38) | ((c.xMc[7] << 6) & 0xC0)); + *pbuf++ = (TUint8)(((c.xMc[7] >> 2) & 0x01) | ((c.xMc[8] << 1) & 0x0E) | ((c.xMc[9] << 4) & 0x70) | ((c.xMc[10] << 7) & 0x80)); + *pbuf++ = (TUint8)(((c.xMc[10] >> 1) & 0x03) | ((c.xMc[11] << 2) & 0x1C) | ((c.xMc[12] << 5) & 0xE0)); + } + } + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + ConstructL + + This function implements the second phase construction of GSM610FR_Decoder + class. Function binds the decoder to given input and output streams and + resets decoder. + + Parameters: RReadStream aInStrm Handle to input stream (encoded + speech data) + + RWriteStream aOutStrm Handle to output stream (16 bit + PCM speech data) + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Decoder::ConstructL() + { + ::reset_decoder(this); + iOddFrame = TRUE; + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + ~GSM610FR_Decoder + + Empty decoder destructor. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C CGSM610FR_Decoder::~CGSM610FR_Decoder() + { + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + StartL + + Start decoder object. Initialize codec status. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Decoder::StartL() + { + ::reset_decoder(this); + iOddFrame = TRUE; + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + ExecuteL + + Execute decoder object. Read one encoded speech frame from the input + stream RPELTP decode it and write the decoded frame to output stream. + + Parameters: none + + Return Values: none + + Leave Handling: + + If the length of data available in the input stream is less than size + of one encoded speech frame then the function leaves with KErrEof. + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Decoder::ExecuteL(TUint8* aInBuf, TUint8* aOutBuf) +{ + + TInt16* outBufPtr = (TInt16*) aOutBuf; + + + // Process both odd and even frames + + for (TInt frame = 0; frame < 2; frame++) + { + if ( iOddFrame ) + { + UnpackFrame0(&iCodeBuf, (TInt8*) aInBuf); + } + else + { + UnpackFrame1(&iCodeBuf, (TInt8*) aInBuf); + } + + + ::RPELTP_decoder(this, &iCodeBuf, outBufPtr); + + iOddFrame = !iOddFrame; + outBufPtr += FRAMESIZE; + + } + +} + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + StopL + + Stop decoder object. Flush out last frames, if necessary. + + Parameters: none + + Return Values: none + +----------------------------------------------------------------------------- +*/ +EXPORT_C void CGSM610FR_Decoder::StopL() + { + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + UnpackFrame0 + + Unpack the codewords of the even frame from pack buffer. + + Packing as in MS gsm610 encoder. + + Parameters: struct codes* aCodeBuf Code words for one speech frame + are unpacked into this structure. + + Return Values: none + + +----------------------------------------------------------------------------- +*/ +void CGSM610FR_Decoder::UnpackFrame0(struct codes* aCodeBuf, TInt8* pbuf) + { + TInt16* LAR = aCodeBuf->LARc; + + // unpack the LAR[0..7] from the first 4.5 bytes + LAR[0] = (TInt16)((pbuf[0] & 0x3F)); + LAR[1] = (TInt16)(((pbuf[0] & 0xC0) >> 6) | ((pbuf[1] & 0x0F) << 2)); + LAR[2] = (TInt16)(((pbuf[1] & 0xF0) >> 4) | ((pbuf[2] & 0x01) << 4)); + LAR[3] = (TInt16)(((pbuf[2] & 0x3E) >> 1)); + LAR[4] = (TInt16)(((pbuf[2] & 0xC0) >> 6) | ((pbuf[3] & 0x03) << 2)); + LAR[5] = (TInt16)(((pbuf[3] & 0x3C) >> 2)); + LAR[6] = (TInt16)(((pbuf[3] & 0xC0) >> 6) | ((pbuf[4] & 0x01) << 2)); + LAR[7] = (TInt16)(((pbuf[4] & 0x0E) >> 1)); + + // unpack Nc, bc, Mc, xmaxc, and xMc for each of the 4 sub-frames + for(TInt i = 0; i < 4; i++) + { + struct sfcodes& c = aCodeBuf->sfc[i]; +#define sfb(x) (pbuf[4+i*7+x]) + c.Nc = (TInt16)(((sfb(0) & 0xF0) >> 4) | ((sfb(1) & 0x07) << 4)); + c.bc = (TInt16)(((sfb(1) & 0x18) >> 3)); + c.Mc = (TInt16)(((sfb(1) & 0x60) >> 5)); + c.xmaxc = (TInt16)(((sfb(1) & 0x80) >> 7) | ((sfb(2) & 0x1F) << 1)); + c.xMc[0] = (TInt16)(((sfb(2) & 0xE0) >> 5)); + c.xMc[1] = (TInt16)((sfb(3) & 0x07)); + c.xMc[2] = (TInt16)(((sfb(3) & 0x3C) >> 3)); + c.xMc[3] = (TInt16)(((sfb(3) & 0xC0) >> 6) | ((sfb(4) & 0x01) << 2)); + c.xMc[4] = (TInt16)(((sfb(4) & 0x0E) >> 1)); + c.xMc[5] = (TInt16)(((sfb(4) & 0x70) >> 4)); + c.xMc[6] = (TInt16)(((sfb(4) & 0x80) >> 7) | ((sfb(5) & 0x03) << 1)); + c.xMc[7] = (TInt16)(((sfb(5) & 0x1C) >> 2)); + c.xMc[8] = (TInt16)(((sfb(5) & 0xE0) >> 5)); + c.xMc[9] = (TInt16)((sfb(6) & 0x07)); + c.xMc[10] = (TInt16)(((sfb(6) & 0x38) >> 3)); + c.xMc[11] = (TInt16)(((sfb(6) & 0xC0) >> 6) | ((sfb(7) & 0x01) << 2)); + c.xMc[12] = (TInt16)(((sfb(7) & 0x0E) >> 1)); +#undef sfb + } + } + + +/* +----------------------------------------------------------------------------- + + GSM610FR_Decoder + + UnpackFrame1 + + Unpack the codewords of the odd frame from pack buffer. + + Packing as in MS gsm610 encoder. + + Parameters: struct codes* aCodeBuf Code words for one speech frame + are unpacked into this structure. + + Return Values: none + + +----------------------------------------------------------------------------- +*/ +void CGSM610FR_Decoder::UnpackFrame1(struct codes* aCodeBuf, TInt8* pbuf) +{ + TInt16* LAR = aCodeBuf->LARc; + + // unpack the LAR[0..7] from the first 4.5 bytes + LAR[0] = (TInt16)(((pbuf[32] & 0xF0) >> 4) | ((pbuf[33] & 0x03) << 4)); + LAR[1] = (TInt16)(((pbuf[33] & 0xFC) >> 2)); + LAR[2] = (TInt16)(((pbuf[34] & 0x1F))); + LAR[3] = (TInt16)(((pbuf[34] & 0xE0) >> 5) | ((pbuf[35] & 0x03) << 3)); + LAR[4] = (TInt16)(((pbuf[35] & 0x3C) >> 2)); + LAR[5] = (TInt16)(((pbuf[35] & 0xC0) >> 6) | ((pbuf[36] & 0x03) << 2)); + LAR[6] = (TInt16)(((pbuf[36] & 0x1C) >> 2)); + LAR[7] = (TInt16)(((pbuf[36] & 0xE0) >> 5)); + + // unpack Nc, bc, Mc, xmaxc, and xMc for each of the 4 sub-frames + for(TInt i = 0; i < 4; i++) + { + struct sfcodes& c = aCodeBuf->sfc[i]; +#define sfb(x) (pbuf[37+i*7+x]) + c.Nc = (TInt16)(sfb(0) & 0x7F); + c.bc = (TInt16)(((sfb(0) & 0x80) >> 7) | ((sfb(1) & 0x01) << 1)); + c.Mc = (TInt16)(((sfb(1) & 0x06) >> 1)); + c.xmaxc = (TInt16)(((sfb(1) & 0xF8) >> 3) | ((sfb(2) & 0x01) << 5)); + c.xMc[0] = (TInt16)(((sfb(2) & 0x0E) >> 1)); + c.xMc[1] = (TInt16)(((sfb(2) & 0x70) >> 4)); + c.xMc[2] = (TInt16)(((sfb(2) & 0x80) >> 7) | ((sfb(3) & 0x03) << 1)); + c.xMc[3] = (TInt16)(((sfb(3) & 0x1C) >> 2)); + c.xMc[4] = (TInt16)(((sfb(3) & 0xE0) >> 5)); + c.xMc[5] = (TInt16)(((sfb(4) & 0x07))); + c.xMc[6] = (TInt16)(((sfb(4) & 0x38) >> 3)); + c.xMc[7] = (TInt16)(((sfb(4) & 0xC0) >> 6) | ((sfb(5) & 0x01) << 2)); + c.xMc[8] = (TInt16)(((sfb(5) & 0x0E) >> 1)); + c.xMc[9] = (TInt16)(((sfb(5) & 0x70) >> 4)); + c.xMc[10] = (TInt16)(((sfb(5) & 0x80) >> 7) | ((sfb(6) & 0x03) << 1)); + c.xMc[11] = (TInt16)(((sfb(6) & 0x1C) >> 2)); + c.xMc[12] = (TInt16)(((sfb(6) & 0xE0) >> 5)); + +#undef sfb + } + } + + +//----------------------------------------------------------------------------- +// End of File +//-----------------------------------------------------------------------------