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// Copyright 2003 Gabest.
// http://www.gabest.org
//
// 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; either version 2 of the License, or
// (at your option) any later version.
//
// 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, or visit
// http://www.gnu.org/copyleft/gpl.html
#pragma once
#include "StreamSwitcher.h"
interface __declspec(uuid("CEDB2890-53AE-4231-91A3-B0AAFCD1DBDE"))
IAudioSwitcherFilter : public IUnknown
{
STDMETHOD(GetInputSpeakerConfig) (DWORD* pdwChannelMask) = 0;
STDMETHOD(GetSpeakerConfig) (bool* pfCustomChannelMapping, DWORD pSpeakerToChannelMap[18][18]) = 0;
STDMETHOD(SetSpeakerConfig) (bool fCustomChannelMapping, DWORD pSpeakerToChannelMap[18][18]) = 0;
STDMETHOD_(int, GetNumberOfInputChannels) () = 0;
STDMETHOD_(bool, IsDownSamplingTo441Enabled) () = 0;
STDMETHOD(EnableDownSamplingTo441) (bool fEnable) = 0;
STDMETHOD_(REFERENCE_TIME, GetAudioTimeShift) () = 0;
STDMETHOD(SetAudioTimeShift) (REFERENCE_TIME rtAudioTimeShift) = 0;
STDMETHOD(GetNormalizeBoost) (bool& fNormalize, bool& fNormalizeRecover, float& boost) = 0;
STDMETHOD(SetNormalizeBoost) (bool fNormalize, bool fNormalizeRecover, float boost) = 0;
};
class AudioStreamResampler;
class __declspec(uuid("18C16B08-6497-420e-AD14-22D21C2CEAB7"))
CAudioSwitcherFilter : public CStreamSwitcherFilter, public IAudioSwitcherFilter
{
typedef struct {DWORD Speaker, Channel;} ChMap;
CAtlArray<ChMap> m_chs[18];
bool m_fCustomChannelMapping;
DWORD m_pSpeakerToChannelMap[18][18];
bool m_fDownSampleTo441;
REFERENCE_TIME m_rtAudioTimeShift;
CAutoPtrArray<AudioStreamResampler> m_pResamplers;
double m_sample_max;
bool m_fNormalize, m_fNormalizeRecover;
float m_boost_mul;
REFERENCE_TIME m_rtNextStart, m_rtNextStop;
public:
CAudioSwitcherFilter(LPUNKNOWN lpunk, HRESULT* phr);
DECLARE_IUNKNOWN
STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
HRESULT CheckMediaType(const CMediaType* pmt);
HRESULT Transform(IMediaSample* pIn, IMediaSample* pOut);
CMediaType CreateNewOutputMediaType(CMediaType mt, long& cbBuffer);
void OnNewOutputMediaType(const CMediaType& mtIn, const CMediaType& mtOut);
HRESULT DeliverEndFlush();
HRESULT DeliverNewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
// IAudioSwitcherFilter
STDMETHODIMP GetInputSpeakerConfig(DWORD* pdwChannelMask);
STDMETHODIMP GetSpeakerConfig(bool* pfCustomChannelMapping, DWORD pSpeakerToChannelMap[18][18]);
STDMETHODIMP SetSpeakerConfig(bool fCustomChannelMapping, DWORD pSpeakerToChannelMap[18][18]);
STDMETHODIMP_(int) GetNumberOfInputChannels();
STDMETHODIMP_(bool) IsDownSamplingTo441Enabled();
STDMETHODIMP EnableDownSamplingTo441(bool fEnable);
STDMETHODIMP_(REFERENCE_TIME) GetAudioTimeShift();
STDMETHODIMP SetAudioTimeShift(REFERENCE_TIME rtAudioTimeShift);
STDMETHODIMP GetNormalizeBoost(bool& fNormalize, bool& fNormalizeRecover, float& boost);
STDMETHODIMP SetNormalizeBoost(bool fNormalize, bool fNormalizeRecover, float boost);
// IAMStreamSelect
STDMETHODIMP Enable(long lIndex, DWORD dwFlags);
};
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