chxsymclipinfo.h

来自「symbian 下的helix player源代码」· C头文件 代码 · 共 120 行

/************************************************************************
 * CHXSymClipInfo.h
 * -------------
 *
 * Synopsis:
 * Aggregates clip information for a given clip. This includes stream
 * and source headers, stream bitrates and source URLs.
 *
 * This info can be accessed (e.g., for clip info display) even after the
 * player session from which the info originates has ended.
 *
 *
 * Target:
 * Symbian OS
 *
 *
 *
 * (c) 1995-2003 RealNetworks, Inc. Patents pending. All rights reserved.
 *
 *****************************************************************************/


#ifndef CHXSYMCLIPINFO_H__
#define CHXSYMCLIPINFO_H__

#include "carray.h" //CHXPtrArray

_INTERFACE IHXPlayer;
_INTERFACE IHXRequest;

// class CHXSymClipInfo
class CHXSymClipInfo 
{
public:
    
    // ctor and dtor
    CHXSymClipInfo();
    virtual ~CHXSymClipInfo();

    void CacheHeadersL(IHXPlayer* pPlayer);
    void CacheURLsL(IHXPlayer* pPlayer);
    void CachePresentationInfoL(IHXPlayer* pPlayer);
    void CacheRequestInfo(IHXRequest* pRequest);

    void SaveStreamBitrateValuesL(IHXPlayer* pPlayer);
    void Reset();
    

    // source
    UINT32 GetSourceCount() const;
    comptr<IHXValues> GetFileHeader(UINT32 idxSource) const;
    const char* GetURL(UINT32 idxSource) const;

    // stream
    UINT32 GetStreamCount(UINT32 idxSource) const; 
    comptr<IHXValues> GetStreamHeader(UINT32 idxStream, UINT32 idxSource) const;
    
    // bitrate
    UINT32 GetStreamBitrate(UINT32 idxStream, UINT32 idxSource) const;

    // other
    bool IsVideoPresentation() const; 
    bool IsLive() const;
    const char* GetServerDescription() const;
    

private:

    // implementation helpers
    comptr<IHXValues> GetHeaderHelper(UINT32 idxSource, UINT32 idxHeader) const;
    void CleanupHeaders();
    void CleanupURLs();
    void CleanupHeaders(CHXPtrArray* pSourceHeaders);
    void CleanupBitrateInfo();
    bool DoCheckForNonAudioStreams();
    


private:

    // an array of CHXPtrArray*
    CHXPtrArray m_sourceHeaders;

    // an array of CHXPtrArray*
    CHXPtrArray m_bitrateInfo;

    // an array of CHXString*
    CHXPtrArray m_sourceURLs;

    bool m_bHasVideo;
    bool m_bIsLive;
    CHXString m_strServer;
    
};



inline
bool CHXSymClipInfo::IsVideoPresentation() const 
{ 
    return m_bHasVideo;
}

inline
bool CHXSymClipInfo::IsLive() const 
{ 
    return m_bIsLive;
}

inline 
const char* CHXSymClipInfo::GetServerDescription() const 
{ 
    return m_strServer; 
} 


#endif // CHXSYMCLIPINFO_H__