ref: d6aa4b3e1d81f48ef67f0b47ad09dbbe2a6964a9
dir: /common/Cfaac/Cfaac.cpp/
/*
CFAAC - set of classes to import/export .aac/.mp4 files
Copyright (C) 2004 Antonio Foranna
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
The author can be contacted at:
ntnfrn_email-temp@yahoo.it
*/
#include "Cfaac.h"
// *********************************************************************************************
// CMyEncCfg
// *********************************************************************************************
void CMyEncCfg::getCfg(CMyEncCfg *cfg)
{
CRegistry reg;
if(reg.OpenCreate(HKEY_CURRENT_USER, REGISTRY_PROGRAM_NAME "\\FAAC"))
{
cfg->AutoCfg=reg.GetSetBool(REG_AUTO,DEF_AUTO);
cfg->SaveMP4=reg.GetSetByte(REG_WRITEMP4,DEF_WRITEMP4);
cfg->EncCfg.mpegVersion=reg.GetSetDword(REG_MPEGVER,DEF_MPEGVER);
cfg->EncCfg.aacObjectType=reg.GetSetDword(REG_PROFILE,DEF_PROFILE);
cfg->EncCfg.allowMidside=reg.GetSetDword(REG_MIDSIDE,DEF_MIDSIDE);
cfg->EncCfg.useTns=reg.GetSetDword(REG_TNS,DEF_TNS);
cfg->EncCfg.useLfe=reg.GetSetDword(REG_LFE,DEF_LFE);
cfg->UseQuality=reg.GetSetBool(REG_USEQUALTY,DEF_USEQUALTY);
cfg->EncCfg.quantqual=reg.GetSetDword(REG_QUALITY,DEF_QUALITY);
cfg->EncCfg.bitRate=reg.GetSetDword(REG_BITRATE,DEF_BITRATE);
cfg->EncCfg.bandWidth=reg.GetSetDword(REG_BANDWIDTH,DEF_BANDWIDTH);
cfg->EncCfg.outputFormat=reg.GetSetDword(REG_HEADER,DEF_HEADER);
FREE_ARRAY(cfg->OutDir);
cfg->OutDir=reg.GetSetStr(REG_OutFolder,"");
cfg->TagOn=reg.GetSetByte(REG_TAGON,0);
#ifdef USE_IMPORT_TAG
cfg->TagImport=reg.GetSetByte(REG_TAGIMPORT,0);
#ifdef USE_PATHEXT
FREE_ARRAY(cfg->TagSrcPath);
FREE_ARRAY(cfg->TagSrcExt);
cfg->TagSrcPath=reg.GetSetStr(REG_InFolder,"");
cfg->TagSrcExt=reg.GetSetStr(REG_SrcExt,"");
#endif
#endif
cfg->Tag.artist=reg.GetSetStr(REG_ARTIST,"");
cfg->Tag.title=reg.GetSetStr(REG_TITLE,"");
cfg->Tag.album=reg.GetSetStr(REG_ALBUM,"");
cfg->Tag.year=reg.GetSetStr(REG_YEAR,"");
cfg->Tag.genre=reg.GetSetStr(REG_GENRE,"");
cfg->Tag.writer=reg.GetSetStr(REG_WRITER,"");
cfg->Tag.comment=reg.GetSetStr(REG_COMMENT,"");
cfg->Tag.trackno=reg.GetSetWord(REG_TRACK,0);
cfg->Tag.ntracks=reg.GetSetWord(REG_NTRACKS,0);
cfg->Tag.discno=reg.GetSetWord(REG_DISK,0);
cfg->Tag.ndiscs=reg.GetSetWord(REG_NDISKS,0);
cfg->Tag.compilation=reg.GetSetByte(REG_COMPILATION,0);
cfg->Tag.artFilename=reg.GetSetStr(REG_ARTFILE,"");
}
else
MessageBox(0,"Can't open registry!",0,MB_OK|MB_ICONSTOP);
}
// -----------------------------------------------------------------------------------------------
void CMyEncCfg::setCfg(CMyEncCfg *cfg)
{
CRegistry reg;
if(reg.OpenCreate(HKEY_CURRENT_USER, REGISTRY_PROGRAM_NAME "\\FAAC"))
{
reg.SetBool(REG_AUTO,cfg->AutoCfg);
reg.SetByte(REG_WRITEMP4,cfg->SaveMP4);
reg.SetDword(REG_MPEGVER,cfg->EncCfg.mpegVersion);
reg.SetDword(REG_PROFILE,cfg->EncCfg.aacObjectType);
reg.SetDword(REG_MIDSIDE,cfg->EncCfg.allowMidside);
reg.SetDword(REG_TNS,cfg->EncCfg.useTns);
reg.SetDword(REG_LFE,cfg->EncCfg.useLfe);
reg.SetBool(REG_USEQUALTY,cfg->UseQuality);
reg.SetDword(REG_QUALITY,cfg->EncCfg.quantqual);
reg.SetDword(REG_BITRATE,cfg->EncCfg.bitRate);
reg.SetDword(REG_BANDWIDTH,cfg->EncCfg.bandWidth);
reg.SetDword(REG_HEADER,cfg->EncCfg.outputFormat);
reg.SetStr(REG_OutFolder,cfg->OutDir);
reg.SetByte(REG_TAGON,cfg->TagOn);
#ifdef USE_IMPORT_TAG
reg.SetByte(REG_TAGIMPORT,cfg->TagImport);
#ifdef USE_PATHEXT
reg.SetStr(REG_InFolder,cfg->TagSrcPath);
reg.SetStr(REG_SrcExt,cfg->TagSrcExt);
#endif
#endif
reg.SetStr(REG_ARTIST,cfg->Tag.artist);
reg.SetStr(REG_TITLE,cfg->Tag.title);
reg.SetStr(REG_ALBUM,cfg->Tag.album);
reg.SetStr(REG_YEAR,cfg->Tag.year);
reg.SetStr(REG_GENRE,cfg->Tag.genre);
reg.SetStr(REG_WRITER,cfg->Tag.writer);
reg.SetStr(REG_COMMENT,cfg->Tag.comment);
reg.SetWord(REG_TRACK,cfg->Tag.trackno);
reg.SetWord(REG_NTRACKS,cfg->Tag.ntracks);
reg.SetWord(REG_DISK,cfg->Tag.discno);
reg.SetWord(REG_NDISKS,cfg->Tag.ndiscs);
reg.SetByte(REG_COMPILATION,cfg->Tag.compilation);
reg.SetStr(REG_ARTFILE,cfg->Tag.artFilename);
}
else
MessageBox(0,"Can't open registry!",0,MB_OK|MB_ICONSTOP);
}
// *********************************************************************************************
// Cfaac
// *********************************************************************************************
Cfaac::Cfaac(HANDLE hOut)
{
if(hOut)
{
hOutput=hOut;
return;
}
if(!(hOutput=GlobalAlloc(GMEM_MOVEABLE|GMEM_SHARE|GMEM_ZEROINIT,sizeof(MYOUTPUT))))
{
MessageBox(0, "Memory allocation error: hOutput", APP_NAME " plugin", MB_OK|MB_ICONSTOP); \
return;
}
// dontAskGetFilename=false;
}
// -----------------------------------------------------------------------------------------------
Cfaac::~Cfaac()
{
if(!hOutput)
return;
MYOUTPUT *mo;
GLOBALLOCK(mo,hOutput,MYOUTPUT,return);
if(mo->WrittenSamples)
{
int BytesWritten;
if(mo->bytes_into_buffer>0)
memset(mo->bufIn+mo->bytes_into_buffer, 0, (mo->samplesInput*(mo->BitsPerSample>>3))-mo->bytes_into_buffer);
do
{
if((BytesWritten=processData(hOutput,mo->bufIn,mo->bytes_into_buffer))<0)
MessageBox(0, "~Cfaac: processData", APP_NAME " plugin", MB_OK|MB_ICONSTOP);
mo->bytes_into_buffer=0;
}while(BytesWritten>0);
}
if(mo->aacFile)
{
fclose(mo->aacFile);
mo->aacFile=0;
CMyEncCfg cfg(false);
if(cfg.TagOn && mo->OutFilename)
{
int error=0;
#ifdef USE_IMPORT_TAG
if(cfg.TagImport && mo->InFilename)
{
int l=strlen(mo->InFilename);
if( !strcmpi(mo->InFilename+l-4,".mp4") ||
!strcmpi(mo->InFilename+l-4,".m4a") ||
!strcmpi(mo->InFilename+l-4,".m4b"))
error=cfg.Tag.ReadMp4Tag(mo->InFilename);
else
error=cfg.Tag.ReadAacTag(mo->InFilename);
}
#endif
if(!error)
cfg.Tag.WriteAacTag(mo->OutFilename);
}
}
else
{
MP4Close(mo->MP4File);
mo->MP4File=0;
}
if(mo->hEncoder)
faacEncClose(mo->hEncoder);
FREE_ARRAY(mo->bitbuf)
FREE_ARRAY(mo->buf32bit)
FREE_ARRAY(mo->bufIn)
FREE_ARRAY(mo->OutFilename)
FREE_ARRAY(mo->InFilename)
GlobalUnlock(hOutput);
GlobalFree(hOutput);
}
// *********************************************************************************************
// Utilities
// *********************************************************************************************
char *Cfaac::getSourceFilename(char *path, char *src, char *ext)
{
char *dst, chExt,
*pname, *pext;
if(!src)
return NULL;
if(!path)
path="";
if(!ext)
ext="";
pname=pext=src+strlen(src);
while(pname!=src && *pname!='\\' && *pname!='/')
pname--;
if(*pname=='\\' || *pname=='/')
pname++;
while(pext!=src && *pext!='.')
pext--;
chExt=*pext;
if(chExt=='.')
*pext='\0';
if(*path)
{
int l;
if(!(dst=(char *)malloc(strlen(path)+strlen(pname)+strlen(ext)+3))) // '\0','\\','.'
return dst;
l=strlen(path);
if(l>0 && path[l-1]=='\\')
sprintf(dst,"%s%s.%s",path,pname,ext);
else
sprintf(dst,"%s\\%s.%s",path,pname,ext);
}
else
{
if(!(dst=(char *)malloc(strlen(pname)+strlen(ext)+2)))
return dst;
sprintf(dst,"%s.%s",pname,ext);
}
*pext=chExt;
if(!strcmpi(src,dst))
{
// if(!dontAskGetFilename)
{
char buf[MAX_PATH+100];
sprintf(buf,"%s\nSource file=Destination file...aborting!\n\n\tSuppress this warning?",dst);
// if(MessageBox(NULL,buf,NULL,MB_YESNO)==IDYES)
// dontAskGetFilename=true;
}
FREE_ARRAY(dst);
return NULL;
}
return dst;
}
// *********************************************************************************************
#define SWAP32(x) (((x & 0xff) << 24) | ((x & 0xff00) << 8) \
| ((x & 0xff0000) >> 8) | ((x & 0xff000000) >> 24))
#define SWAP16(x) (((x & 0xff) << 8) | ((x & 0xff00) >> 8))
void Cfaac::To32bit(int32_t *buf, BYTE *bufi, int size, BYTE samplebytes, BYTE bigendian)
{
int i;
switch(samplebytes)
{
case 1:
// this is endian clean
for (i = 0; i < size; i++)
buf[i] = (bufi[i] - 128) * 65536;
break;
case 2:
#ifdef WORDS_BIGENDIAN
if (!bigendian)
#else
if (bigendian)
#endif
{
// swap bytes
for (i = 0; i < size; i++)
{
int16_t s = ((int16_t *)bufi)[i];
s = SWAP16(s);
buf[i] = ((u_int32_t)s) << 8;
}
}
else
{
// no swap
for (i = 0; i < size; i++)
{
int s = ((int16_t *)bufi)[i];
buf[i] = s << 8;
}
}
break;
case 3:
if (!bigendian)
{
for (i = 0; i < size; i++)
{
int s = bufi[3 * i] | (bufi[3 * i + 1] << 8) | (bufi[3 * i + 2] << 16);
// fix sign
if (s & 0x800000)
s |= 0xff000000;
buf[i] = s;
}
}
else // big endian input
{
for (i = 0; i < size; i++)
{
int s = (bufi[3 * i] << 16) | (bufi[3 * i + 1] << 8) | bufi[3 * i + 2];
// fix sign
if (s & 0x800000)
s |= 0xff000000;
buf[i] = s;
}
}
break;
case 4:
#ifdef WORDS_BIGENDIAN
if (!bigendian)
#else
if (bigendian)
#endif
{
// swap bytes
for (i = 0; i < size; i++)
{
int s = bufi[i];
buf[i] = SWAP32(s);
}
}
else
memcpy(buf,bufi,size*sizeof(u_int32_t));
/*
int exponent, mantissa;
float *bufo=(float *)buf;
for (i = 0; i < size; i++)
{
exponent=bufi[(i<<2)+3]<<1;
if(bufi[i*4+2] & 0x80)
exponent|=0x01;
exponent-=126;
mantissa=(DWORD)bufi[(i<<2)+2]<<16;
mantissa|=(DWORD)bufi[(i<<2)+1]<<8;
mantissa|=bufi[(i<<2)];
bufo[i]=(float)ldexp(mantissa,exponent);
}*/
break;
}
}
// *********************************************************************************************
// Main functions
// *********************************************************************************************
void Cfaac::DisplayError(char *ProcName, char *str)
{
char buf[100]="";
if(str && *str)
{
if(ProcName && *ProcName)
sprintf(buf,"%s: ", ProcName);
strcat(buf,str);
MessageBox(0, buf, APP_NAME " plugin", MB_OK|MB_ICONSTOP);
}
MYOUTPUT *mo;
GLOBALLOCK(mo,hOutput,MYOUTPUT,return);
mo->bytes_into_buffer=-1;
GlobalUnlock(hOutput);
GlobalUnlock(hOutput);
}
// *********************************************************************************************
HANDLE Cfaac::Init(LPSTR InFileName, LPSTR OutFileName,long lSamprate,WORD wBitsPerSample,WORD wChannels,long FileSize)
{
MYOUTPUT *mo;
CMyEncCfg cfg(false);
DWORD samplesInput,
maxBytesOutput;
// if(wBitsPerSample!=8 && wBitsPerSample!=16) // 32 bit audio from cooledit is in unsupported format
// return 0;
if(wChannels>48) // FAAC supports max 48 tracks!
return NULL;
GLOBALLOCK(mo,hOutput,MYOUTPUT,return NULL);
// open the encoder library
if(!(mo->hEncoder=faacEncOpen(lSamprate, wChannels, &samplesInput, &maxBytesOutput)))
return ERROR_Init("Can't open library");
if(!(mo->bitbuf=(unsigned char *)malloc(maxBytesOutput*sizeof(unsigned char))))
return ERROR_Init("Memory allocation error: output buffer");
if(!(mo->bufIn=(BYTE *)malloc(samplesInput*sizeof(int32_t))))
return ERROR_Init("Memory allocation error: input buffer");
if(!(mo->buf32bit=(int32_t *)malloc(samplesInput*sizeof(int32_t))))
return ERROR_Init("Memory allocation error: 32 bit buffer");
if(cfg.SaveMP4)// || cfg.Tag.On)
{
int ExtPos=0, // append new ext
fnLen=lstrlen(OutFileName);
// if(OutFileName[lstrlen(OutFileName)-4]=='.')
if( fnLen>=4 &&
(!strcmpi(OutFileName+fnLen-4,".aac") ||
!strcmpi(OutFileName+fnLen-4,".mp4") ||
!strcmpi(OutFileName+fnLen-4,".m4a") ||
!strcmpi(OutFileName+fnLen-4,".m4b"))) // no aac/mp4 ext => append new ext
if( (cfg.SaveMP4==1 && strcmpi(OutFileName+fnLen-4,".mp4")) ||
(cfg.SaveMP4==2 && strcmpi(OutFileName+fnLen-4,".m4a")) ||
(cfg.SaveMP4==3 && strcmpi(OutFileName+fnLen-4,".m4b")))
ExtPos=4; // wrong ext => replace it
else
ExtPos=-1; // correct ext => no action
if(ExtPos!=-1)
{
switch(cfg.SaveMP4)
{
case 1: strcpy(OutFileName+fnLen-ExtPos,".mp4"); break;
case 2: strcpy(OutFileName+fnLen-ExtPos,".m4a"); break;
case 3: strcpy(OutFileName+fnLen-ExtPos,".m4b"); break;
}
FILE *f=fopen(OutFileName,"rb");
if(f)
{
char buf[MAX_PATH+20];
sprintf(buf,"Overwrite \"%s\" ?",OutFileName);
fclose(f);
if(MessageBox(NULL,buf,"File already exists!",MB_YESNO|MB_ICONQUESTION)==IDNO)
return ERROR_Init(0);//"User abort");
}
}
}
mo->WriteMP4= !strcmpi(OutFileName+lstrlen(OutFileName)-4,".mp4") ||
!strcmpi(OutFileName+lstrlen(OutFileName)-4,".m4a") ||
!strcmpi(OutFileName+lstrlen(OutFileName)-4,".m4b");
faacEncConfigurationPtr CurFormat=faacEncGetCurrentConfiguration(mo->hEncoder);
CurFormat->inputFormat=FAAC_INPUT_32BIT;
/* switch(wBitsPerSample)
{
case 16:
CurFormat->inputFormat=FAAC_INPUT_16BIT;
break;
case 24:
CurFormat->inputFormat=FAAC_INPUT_24BIT;
break;
case 32:
CurFormat->inputFormat=FAAC_INPUT_32BIT;
break;
default:
CurFormat->inputFormat=FAAC_INPUT_NULL;
break;
}*/
if(!cfg.AutoCfg)
{
faacEncConfigurationPtr myFormat=&cfg.EncCfg;
if(cfg.UseQuality)
{
CurFormat->quantqual=myFormat->quantqual;
CurFormat->bitRate=0;//myFormat->bitRate;
}
else
{
CurFormat->bitRate=(myFormat->bitRate*1000)/wChannels;
CurFormat->quantqual=100;
}
switch(CurFormat->bandWidth)
{
case 0: // Auto
break;
case 0xffffffff: // Full
CurFormat->bandWidth=lSamprate/2;
break;
default:
CurFormat->bandWidth=myFormat->bandWidth;
break;
}
CurFormat->mpegVersion=myFormat->mpegVersion;
CurFormat->outputFormat=myFormat->outputFormat;
CurFormat->mpegVersion=myFormat->mpegVersion;
CurFormat->aacObjectType=myFormat->aacObjectType;
CurFormat->allowMidside=myFormat->allowMidside;
// CurFormat->useTns=myFormat->useTns;
CurFormat->useTns=false;
}
else
{
CurFormat->mpegVersion=DEF_MPEGVER;
CurFormat->aacObjectType=DEF_PROFILE;
CurFormat->allowMidside=DEF_MIDSIDE;
// CurFormat->useTns=DEF_TNS;
CurFormat->useTns=false;
CurFormat->useLfe=DEF_LFE;
CurFormat->quantqual=DEF_QUALITY;
CurFormat->bitRate=DEF_BITRATE;
CurFormat->bandWidth=DEF_BANDWIDTH;
CurFormat->outputFormat=DEF_HEADER;
}
if(mo->WriteMP4)
CurFormat->outputFormat=RAW;
CurFormat->useLfe=wChannels>=6 ? 1 : 0;
if(!faacEncSetConfiguration(mo->hEncoder, CurFormat))
return ERROR_Init("Unsupported parameters!");
// mo->src_size=lSize;
// mi->dst_name=strdup(OutFileName);
mo->Samprate=lSamprate;
mo->BitsPerSample=wBitsPerSample;
mo->Channels=wChannels;
mo->samplesInput=samplesInput;
mo->samplesInputSize=samplesInput*(mo->BitsPerSample>>3);
mo->maxBytesOutput=maxBytesOutput;
if(mo->WriteMP4) // Create MP4 file --------------------------------------------------------------------------
{
BYTE *ASC=0;
DWORD ASCLength=0;
if((mo->MP4File=MP4Create(OutFileName, 0, 0))==MP4_INVALID_FILE_HANDLE)
return ERROR_Init("Can't create file");
MP4SetTimeScale(mo->MP4File, 90000);
mo->MP4track=MP4AddAudioTrack(mo->MP4File, lSamprate, MP4_INVALID_DURATION, MP4_MPEG4_AUDIO_TYPE);
MP4SetAudioProfileLevel(mo->MP4File, 0x0F);
faacEncGetDecoderSpecificInfo(mo->hEncoder, &ASC, &ASCLength);
MP4SetTrackESConfiguration(mo->MP4File, mo->MP4track, (unsigned __int8 *)ASC, ASCLength);
mo->frameSize=samplesInput/wChannels;
mo->ofs=mo->frameSize;
if(cfg.TagOn)
{
int error=0;
#ifdef USE_IMPORT_TAG
if(cfg.TagImport && InFileName)
{
int l=strlen(InFileName);
if( !strcmpi(InFileName+l-4,".mp4") ||
!strcmpi(InFileName+l-4,".m4a") ||
!strcmpi(InFileName+l-4,".m4b"))
error=cfg.Tag.ReadMp4Tag(InFileName);
else
error=cfg.Tag.ReadAacTag(InFileName);
}
#endif
if(!error)
cfg.Tag.WriteMP4Tag(mo->MP4File);
}
}
else // Create AAC file -----------------------------------------------------------------------------
{
// open the aac output file
if(!(mo->aacFile=fopen(OutFileName, "wb")))
return ERROR_Init("Can't create file");
// use bufferized stream
setvbuf(mo->aacFile,NULL,_IOFBF,32767);
mo->InFilename=strdup(InFileName);
mo->OutFilename=strdup(OutFileName);
}
showInfo(mo);
GlobalUnlock(hOutput);
return hOutput;
}
// *********************************************************************************************
int Cfaac::processData(HANDLE hOutput, BYTE *bufIn, DWORD len)
{
if(!hOutput)
return -1;
int bytesWritten=0;
int bytesEncoded;
MYOUTPUT far *mo;
GLOBALLOCK(mo,hOutput,MYOUTPUT,return 0);
int32_t *buf=mo->buf32bit;
if((int)len<mo->samplesInputSize)
{
mo->samplesInput=(len<<3)/mo->BitsPerSample;
mo->samplesInputSize=mo->samplesInput*(mo->BitsPerSample>>3);
}
// if(mo->BitsPerSample==8 || mo->BitsPerSample==32)
To32bit(buf,bufIn,mo->samplesInput,mo->BitsPerSample>>3,false);
// call the actual encoding routine
if((bytesEncoded=faacEncEncode(mo->hEncoder, (int32_t *)buf, mo->samplesInput, mo->bitbuf, mo->maxBytesOutput))<0)
return ERROR_processData("faacEncEncode()");
// write bitstream to aac file
if(mo->aacFile)
{
if(bytesEncoded>0)
{
if((bytesWritten=fwrite(mo->bitbuf, 1, bytesEncoded, mo->aacFile))!=bytesEncoded)
return ERROR_processData("Write failed!");
mo->WrittenSamples=1; // needed into destructor
}
}
else
// write bitstream to mp4 file
{
MP4Duration dur,
SamplesLeft;
if(len>0)
{
mo->srcSize+=len;
dur=mo->frameSize;
}
else
{
mo->TotalSamples=(mo->srcSize<<3)/(mo->BitsPerSample*mo->Channels);
SamplesLeft=(mo->TotalSamples-mo->WrittenSamples)+mo->frameSize;
dur=SamplesLeft>mo->frameSize ? mo->frameSize : SamplesLeft;
}
if(bytesEncoded>0)
{
if(!(bytesWritten=MP4WriteSample(mo->MP4File, mo->MP4track, (unsigned __int8 *)mo->bitbuf, (DWORD)bytesEncoded, dur, mo->ofs, true) ? bytesEncoded : -1))
return ERROR_processData("MP4WriteSample()");
mo->ofs=0;
mo->WrittenSamples+=dur;
}
}
showProgress(mo);
GlobalUnlock(hOutput);
return bytesWritten;
}
// -----------------------------------------------------------------------------------------------
int Cfaac::processDataBufferized(HANDLE hOutput, BYTE *bufIn, long lBytes)
{
if(!hOutput)
return -1;
int bytesWritten=0, tot=0;
MYOUTPUT far *mo;
GLOBALLOCK(mo,hOutput,MYOUTPUT,return 0);
if(mo->bytes_into_buffer>=0)
do
{
if(mo->bytes_into_buffer+lBytes<mo->samplesInputSize)
{
memmove(mo->bufIn+mo->bytes_into_buffer, bufIn, lBytes);
mo->bytes_into_buffer+=lBytes;
lBytes=0;
}
else
{
int shift=mo->samplesInputSize-mo->bytes_into_buffer;
memmove(mo->bufIn+mo->bytes_into_buffer, bufIn, shift);
mo->bytes_into_buffer+=shift;
bufIn+=shift;
lBytes-=shift;
tot+=bytesWritten=processData(hOutput,mo->bufIn,mo->bytes_into_buffer);
if(bytesWritten<0)
return ERROR_processData(0);
mo->bytes_into_buffer=0;
}
}while(lBytes);
GlobalUnlock(hOutput);
return tot;
}