115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
/********************************************************************************
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Copyright (C) 2012 Hugh Bailey <obs.jim@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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********************************************************************************/
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#pragma once
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enum
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{
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NoAudioAvailable,
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AudioAvailable,
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};
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struct AudioSegment
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{
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List<float> audioData;
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QWORD timestamp;
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inline void ClearData()
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{
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audioData.Clear();
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}
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};
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class BASE_EXPORT AudioSource
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{
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bool bResample;
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LPVOID resampler;
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double resampleRatio;
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//-----------------------------------------
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List<AudioSegment> audioSegments;
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bool bFirstBaseFrameReceived;
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QWORD lastSentTimestamp;
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int timeOffset;
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//-----------------------------------------
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List<float> storageBuffer;
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//-----------------------------------------
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List<float> outputBuffer;
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List<float> convertBuffer;
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List<float> tempBuffer;
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List<float> tempResampleBuffer;
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//-----------------------------------------
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bool bFloat;
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UINT inputChannels;
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UINT inputSamplesPerSec;
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UINT inputBitsPerSample;
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UINT inputBlockSize;
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DWORD inputChannelMask;
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QWORD lastUsedTimestamp;
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//-----------------------------------------
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protected:
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void InitAudioData(bool bFloat, UINT channels, UINT samplesPerSec, UINT bitsPerSample, UINT blockSize, DWORD channelMask);
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//-----------------------------------------
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virtual CTSTR GetDeviceName() const=0;
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//-----------------------------------------
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virtual bool GetNextBuffer(void **buffer, UINT *numFrames, QWORD *timestamp)=0;
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virtual void ReleaseBuffer()=0;
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public:
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//-----------------------------------------
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virtual ~AudioSource();
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virtual UINT QueryAudio(float curVolume);
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virtual bool GetEarliestTimestamp(QWORD ×tamp);
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virtual bool GetBuffer(float **buffer, UINT *numFrames, QWORD targetTimestamp);
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virtual bool GetNewestFrame(float **buffer, UINT *numFrames);
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virtual QWORD GetBufferedTime();
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virtual void StartCapture() {}
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virtual void StopCapture() {}
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inline UINT GetChannelCount() const {return inputChannels;}
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inline UINT GetSamplesPerSec() const {return inputSamplesPerSec;}
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inline int GetTimeOffset() const {return timeOffset;}
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inline void SetTimeOffset(int newOffset) {timeOffset = newOffset;}
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};
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