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 "vorbisstream.h" 00033 00034 VorbisStream::VorbisStream(OggPage* inBOSPage, OggDemuxSourceFilter* inOwningFilter, bool inAllowSeek) 00035 : OggStream(inBOSPage, inOwningFilter, inAllowSeek) 00036 , mVorbisFormatBlock(NULL) 00037 { 00038 InitCodec(inBOSPage->getStampedPacket(0)); 00039 //debugLog.open("G:\\logs\\vorbisstream.log", ios_base::out); 00040 } 00041 00042 VorbisStream::~VorbisStream(void) 00043 { 00044 delete mVorbisFormatBlock; 00045 } 00046 00047 00048 bool VorbisStream::InitCodec(StampedOggPacket* inOggPacket) { 00049 mCodecHeaders = new StreamHeaders; 00050 mCodecHeaders->mCodecType = StreamHeaders::VORBIS; 00051 mCodecHeaders->addPacket((StampedOggPacket*)inOggPacket->clone()); 00052 mNumHeadersNeeded = 2; 00053 return true; 00054 } 00055 00056 BYTE* VorbisStream::getFormatBlock() { 00057 00058 return (BYTE*)mVorbisFormatBlock; 00059 00060 } 00061 bool VorbisStream::createFormatBlock() { 00062 //Check where this gets deleted 00063 mVorbisFormatBlock = new sVorbisFormatBlock; 00064 mVorbisFormatBlock->vorbisVersion = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 7); 00065 mVorbisFormatBlock->numChannels = mCodecHeaders->getPacket(0)->packetData()[11]; 00066 mVorbisFormatBlock->samplesPerSec = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 12); 00067 mVorbisFormatBlock->maxBitsPerSec = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 16); 00068 mVorbisFormatBlock->avgBitsPerSec = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 20); 00069 mVorbisFormatBlock->minBitsPerSec = iLE_Math::charArrToULong(mCodecHeaders->getPacket(0)->packetData() + 24); 00070 00071 return true; 00072 } 00073 00074 void VorbisStream::setLastEndGranPos(__int64 inPos) { 00075 //debugLog<<"Vorbis inPos = "<<inPos<<endl; 00076 mLastEndGranulePos = (inPos * (__int64)mVorbisFormatBlock->samplesPerSec)/ UNITS; 00077 //debugLog<<"Vorbis sets End Gran : "<<mLastEndGranulePos<<endl; 00078 } 00079 unsigned long VorbisStream::getFormatBlockSize() { 00080 return sizeof(sVorbisFormatBlock); 00081 } 00082 GUID VorbisStream::getFormatGUID() { 00083 return FORMAT_Vorbis; 00084 } 00085 GUID VorbisStream::getSubtypeGUID() { 00086 return MEDIASUBTYPE_Vorbis; 00087 } 00088 wstring VorbisStream::getPinName() { 00089 wstring retName = L"Vorbis Out"; 00090 return retName; 00091 } 00092 GUID VorbisStream::getMajorTypeGUID() { 00093 return MEDIATYPE_Audio; 00094 } 00095 00096 LONGLONG VorbisStream::getCurrentPos() { 00097 return (mLastEndGranulePos * UNITS) / mVorbisFormatBlock->samplesPerSec; 00098 } 00099 00100 unsigned long VorbisStream::getNumBuffers() { 00101 return VORBIS_NUM_BUFFERS; 00102 } 00103 unsigned long VorbisStream::getBufferSize() { 00104 return VORBIS_BUFFER_SIZE; 00105 }