00001 //=========================================================================== 00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh 00003 // 00004 //Redistribution and use in source and binary forms, with or without 00005 //modification, are permitted provided that the following conditions 00006 //are met: 00007 // 00008 //- Redistributions of source code must retain the above copyright 00009 // notice, this list of conditions and the following disclaimer. 00010 // 00011 //- Redistributions in binary form must reproduce the above copyright 00012 // notice, this list of conditions and the following disclaimer in the 00013 // documentation and/or other materials provided with the distribution. 00014 // 00015 //- Neither the name of Zentaro Kavanagh nor the names of contributors 00016 // may be used to endorse or promote products derived from this software 00017 // without specific prior written permission. 00018 // 00019 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00020 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00021 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00022 //PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ORGANISATION OR 00023 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00024 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00025 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 //=========================================================================== 00031 #include "stdafx.h" 00032 #include "speexstream.h" 00033 00034 SpeexStream::SpeexStream(OggPage* inBOSPage, OggDemuxSourceFilter* inOwningFilter, bool inAllowSeek) 00035 : OggStream(inBOSPage, inOwningFilter, inAllowSeek) 00036 , mSpeexFormatBlock(NULL) 00037 { 00038 InitCodec(inBOSPage->getStampedPacket(0)); 00039 } 00040 00041 SpeexStream::~SpeexStream(void) 00042 { 00043 delete mSpeexFormatBlock; 00044 } 00045 00046 bool SpeexStream::InitCodec(StampedOggPacket* inOggPacket) { 00047 //Can probably abstract this out of here too ! 00048 mCodecHeaders = new StreamHeaders; 00049 mCodecHeaders->mCodecType = StreamHeaders::SPEEX; 00050 mCodecHeaders->addPacket((StampedOggPacket*)inOggPacket->clone()); 00051 //What to do with commment fields ?? 00052 mNumHeadersNeeded = 1; 00053 return true; 00054 } 00055 00056 wstring SpeexStream::getPinName() { 00057 wstring locName = L"Speex Out"; 00058 return locName; 00059 } 00060 00061 bool SpeexStream::createFormatBlock() { 00062 mSpeexFormatBlock = new sSpeexFormatBlock; 00063 //Fix the format block data... use header version and other version. 00064 mSpeexFormatBlock->speexVersion = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 28); 00065 mSpeexFormatBlock->numChannels = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 48); 00066 mSpeexFormatBlock->samplesPerSec = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 36); 00067 return true; 00068 } 00069 BYTE* SpeexStream::getFormatBlock() { 00070 00071 return (BYTE*)mSpeexFormatBlock; 00072 00073 00074 } 00075 00076 void SpeexStream::setLastEndGranPos(__int64 inPos) { 00077 00078 mLastEndGranulePos = (inPos * (__int64)mSpeexFormatBlock->samplesPerSec)/ UNITS; 00079 //osDebug<<"Speex sets End Gran : "<<mLastEndGranulePos<<endl; 00080 } 00081 unsigned long SpeexStream::getFormatBlockSize() { 00082 //Do something 00083 return sizeof(sSpeexFormatBlock); 00084 } 00085 GUID SpeexStream::getFormatGUID() { 00086 return FORMAT_Speex; 00087 } 00088 GUID SpeexStream::getSubtypeGUID() { 00089 return MEDIASUBTYPE_Speex; 00090 } 00091 00092 GUID SpeexStream::getMajorTypeGUID() { 00093 return MEDIATYPE_Audio; 00094 } 00095 00096 LONGLONG SpeexStream::getCurrentPos() { 00097 return (mLastEndGranulePos * UNITS) / mSpeexFormatBlock->samplesPerSec; 00098 } 00099 00100 unsigned long SpeexStream::getNumBuffers() { 00101 return SPEEX_NUM_BUFFERS; 00102 } 00103 unsigned long SpeexStream::getBufferSize() { 00104 return SPEEX_BUFFER_SIZE; 00105 }