OggSplitter.h

/* 
 *      Copyright (C) 2003-2005 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, 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 GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#pragma once

#include <atlbase.h>
#include <atlcoll.h>
#include <afxtempl.h>
#include "OggFile.h"
#include "..\BaseSplitter\BaseSplitter.h"

class OggPacket : public Packet
{
public:
        OggPacket() {fSkip = false;}
        bool fSkip;
};

class COggSplitterOutputPin : public CBaseSplitterOutputPin
{
        class CComment
        {
        public: 
                CStringW m_key, m_value; 
                CComment(CStringW key, CStringW value) : m_key(key), m_value(value) {m_key.MakeUpper();}
        };

        CAutoPtrList<CComment> m_pComments;

protected:
        CCritSec m_csPackets;
        CAutoPtrList<OggPacket> m_packets;
        CAutoPtr<OggPacket> m_lastpacket;
        int m_lastseqnum;
        REFERENCE_TIME m_rtLast;
        bool m_fSkip;

        void ResetState(DWORD seqnum = -1);

public:
        COggSplitterOutputPin(LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);

        void AddComment(BYTE* p, int len);
        CStringW GetComment(CStringW key);

        HRESULT UnpackPage(OggPage& page);
        virtual HRESULT UnpackPacket(CAutoPtr<OggPacket>& p, BYTE* pData, int len) = 0;
        virtual REFERENCE_TIME GetRefTime(__int64 granule_position) = 0;
        CAutoPtr<OggPacket> GetPacket();
    
        HRESULT DeliverEndFlush();
    HRESULT DeliverNewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
};

class COggVorbisOutputPin : public COggSplitterOutputPin
{
        CAutoPtrList<OggPacket> m_initpackets;

        DWORD m_audio_sample_rate;
        DWORD m_blocksize[2], m_lastblocksize;
        CArray<bool> m_blockflags;

        virtual HRESULT UnpackPacket(CAutoPtr<OggPacket>& p, BYTE* pData, int len);
        virtual REFERENCE_TIME GetRefTime(__int64 granule_position);

        HRESULT DeliverPacket(CAutoPtr<OggPacket> p);
    HRESULT DeliverNewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);

public:
        COggVorbisOutputPin(OggVorbisIdHeader* h, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);

        HRESULT UnpackInitPage(OggPage& page);
        bool IsInitialized() {return m_initpackets.GetCount() >= 3;}
};

class COggDirectShowOutputPin : public COggSplitterOutputPin
{
        virtual HRESULT UnpackPacket(CAutoPtr<OggPacket>& p, BYTE* pData, int len);
        virtual REFERENCE_TIME GetRefTime(__int64 granule_position);

public:
        COggDirectShowOutputPin(AM_MEDIA_TYPE* pmt, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
};

class COggStreamOutputPin : public COggSplitterOutputPin
{
        __int64 m_time_unit, m_samples_per_unit;
        DWORD m_default_len;

        virtual HRESULT UnpackPacket(CAutoPtr<OggPacket>& p, BYTE* pData, int len);
        virtual REFERENCE_TIME GetRefTime(__int64 granule_position);

public:
        COggStreamOutputPin(OggStreamHeader* h, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
};

class COggVideoOutputPin : public COggStreamOutputPin
{
public:
        COggVideoOutputPin(OggStreamHeader* h, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
};

class COggAudioOutputPin : public COggStreamOutputPin
{
public:
        COggAudioOutputPin(OggStreamHeader* h, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
};

class COggTextOutputPin : public COggStreamOutputPin
{
public:
        COggTextOutputPin(OggStreamHeader* h, LPCWSTR pName, CBaseFilter* pFilter, CCritSec* pLock, HRESULT* phr);
};

[uuid("9FF48807-E133-40AA-826F-9B2959E5232D")]
class COggSplitterFilter : public CBaseSplitterFilter
{
protected:
        CAutoPtr<COggFile> m_pFile;
        HRESULT CreateOutputs(IAsyncReader* pAsyncReader);

        bool DemuxInit();
        void DemuxSeek(REFERENCE_TIME rt);
        bool DemuxLoop();

public:
        COggSplitterFilter(LPUNKNOWN pUnk, HRESULT* phr);
        virtual ~COggSplitterFilter();
};

[uuid("6D3688CE-3E9D-42F4-92CA-8A11119D25CD")]
class COggSourceFilter : public COggSplitterFilter
{
public:
        COggSourceFilter(LPUNKNOWN pUnk, HRESULT* phr);
};

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