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C/C++

chxavclipinfolist.cpp：源码内容
							
/*============================================================================*
 *
 * (c) 1995-2002 RealNetworks, Inc. Patents pending. All rights reserved.
 *
 *============================================================================*/
#include <limits.h>
#include "hxassert.h"
#include "hxstring.h"
#include "chxavutil.h"
#include "chxavcleanupstack.h"
#include "chxavcleanstring.h"
#include "comptr.h"
#include "chxavplayer.h"
#include "chxavmisc.h"
#include "hxapihelp.h"
#include "hxapihelp_player.h"
#include "chxavclipinfolist.h"
///////////////////////////////////
// ctor
CHXAvClipInfoList::CHXAvClipInfoList()
{
}
///////////////////////////////////
// dtor
CHXAvClipInfoList::~CHXAvClipInfoList()
{
}
///////////////////////////////////
// helper
void CHXAvClipInfoList::AddURLItemL(TInt idResTitle, const TDesC& url)
{
    if( CHXAvUtil::IsLocal(url) )
    {
        // for local urls, display as local path (without file://)
        HBufC* pPath = CHXAvUtil::AllocStdPathFromPlayerUrlL(url);
        AUTO_PUSH_POP_DEL(pPath);
        AddLineL(idResTitle, *pPath);
    }
    else if(CHXAvUtil::HasValidNetworkURLSchemePrefix(url)) // filters 'helix-sdp:{huge sdp text}', 'streamid', etc.
    {
        // display un-adulterated URL if has valid url sheme
        AddLineL(idResTitle, url);
    }
}
///////////////////////////////////
// helper
void CHXAvClipInfoList::AddFileSizeItemL(const char* pszURL)
{
    if( CHXAvUtil::IsLocal(pszURL) )
    {
        // get path
        HBufC* pPath = CHXAvUtil::AllocStdPathFromPlayerUrlL(pszURL);
        AUTO_PUSH_POP_DEL(pPath);
        // get size
        TInt cbFile = CHXAvFile::GetFileSize(*pPath);
        if( cbFile > 0 )
        {
            HBufC* pText = AllocFileSizeDescL(cbFile);
            AUTO_PUSH_POP_DEL(pText);
            AddLineL(R_CLIPINF_FILESIZE, *pText);
        }
    }
}
///////////////////////////////////
// helper
void CHXAvClipInfoList::AddStringItemL(const TDesC& caption, comptr<IHXValues>& header, const char* pszKey, val::ValType valType)
{
    CHXString str;
    val::GetString(header, pszKey, str, valType);
    AddLineL(caption, CHXAvCleanString(str)());
}
///////////////////////////////////
// helper
inline
void CHXAvClipInfoList::AddIntItemL(TInt captionResId, comptr<IHXValues>& header, 
                                     const char* pszKey, const TDesC& format)
{
    AddIntItemL(CHXAvCleanString(captionResId)(), header, pszKey, format);
}
///////////////////////////////////
// helper
void CHXAvClipInfoList::AddIntItemL(const TDesC& caption, comptr<IHXValues>& header, 
                                     const char* pszKey, const TDesC& format)
{
    UINT32 val = 0;
    if( val::GetUINT32(header, pszKey, val))
    {
        HX_ASSERT(val <= INT_MAX);
        CHXAvCleanString desc(format, TInt(val));
        AddLineL(caption, desc());
    }
}
///////////////////////////////////
// helper
inline
void CHXAvClipInfoList::AddStringItemL(TInt resId, comptr<IHXValues>& header, const char* pszKey, val::ValType valType)
{
    AddStringItemL(CHXAvCleanString(resId)(), header, pszKey, valType);
}
// BuildClipInfo helper
void CHXAvClipInfoList::BuildClipInfoForSource(CHXAvPlayer* pPlayer, UINT32 idxSource)
{
    const CHXSymClipInfo& info = pPlayer->GetClipInfo();
    _LIT(KNakedIntFormat, "%d");
    if (idxSource > 0)
    {
        AddLineL(KNullDesC, CHXAvCleanString(_L("Source %d ==>"), TInt(idxSource))()); //XXXLCM res
    }
    comptr<IHXValues> header = info.GetFileHeader(idxSource);
    //fileheader
    AddStringItemL(R_CLIPINF_TITLE, header, "Title", val::buffer);
    AddStringItemL(R_CLIPINF_AUTHOR, header, "Author", val::buffer);
    AddStringItemL(R_CLIPINF_COPY, header, "Copyright", val::buffer);
    AddStringItemL(R_CLIPINF_ABSTRACT, header, "Abstract", val::buffer);
    if( 0 == idxSource )
    {
        if(pPlayer->IsPlaylistLoaded())
        {
            // container url
            AddURLItemL(R_CLIPINF_RAM_URL, CHXAvCleanString(pPlayer->GetMainURL())());
            // filesize
            AddFileSizeItemL(pPlayer->GetMainURL());
            // current playlist url
            AddURLItemL(R_CLIPINF_CLIP_URL, CHXAvCleanString(pPlayer->GetPlayURL())());
            // filesize
            AddFileSizeItemL(pPlayer->GetPlayURL());
        }
        else
        {
            // container or only url
            AddURLItemL(R_CLIPINF_RAM_URL, CHXAvCleanString(pPlayer->GetMainURL())());
            // filesize
            AddFileSizeItemL(pPlayer->GetMainURL());
            // sdp case will have 'control' in file header set to the URL
            CHXString str;
            if(val::GetString(header, "Control", str, val::string))
            {
                // control url
                AddURLItemL(R_CLIPINF_CLIP_URL, CHXAvCleanString(str)());
                // filesize (impossible?)
                // AddFileSizeItemL(str);
            }
        }
    }
    else
    {
        // source url
        const char* pszUrl = info.GetURL(idxSource);
        CHXAvCleanString url(pszUrl);
        AddURLItemL(R_CLIPINF_CLIP_URL, url());
        
        // filesize
        AddFileSizeItemL(pszUrl);
    }
    // width and height - qtffplin adds these but they are always 320 x 240
    //AddIntItemL(R_CLIPINF_WIDTH, header, "Width", KNakedIntFormat);
    //AddIntItemL(R_CLIPINF_HEIGHT, header, "Height", KNakedIntFormat);
    // iterate streams to get total bitrate and duration
    
    UINT32 totalBitrate = 0;
    UINT32 msDuration = 0;
    const UINT32 streamCount = info.GetStreamCount(idxSource);
    // only show duration for first source (most likely smil)
    bool bIncludeDuration = (0 == idxSource);
    
    UINT32 idx = 0;
    for(idx = 0; idx < streamCount; ++idx)
    {
        comptr<IHXValues> streamHeader = info.GetStreamHeader(idx, idxSource);
    
        if( bIncludeDuration)
        {
            UINT32 val = 0;
            val::GetUINT32(streamHeader, "Duration", val);
            msDuration = max(msDuration, val);
        }
        totalBitrate += info.GetStreamBitrate(idx, idxSource);
    }
    
    
    // duration
    if( !info.IsLive() && msDuration > 0 )
    {
        HBufC* pTimeText = CHXAvMisc::AllocTimerTextL(msDuration);
        AUTO_PUSH_POP_DEL(pTimeText);
	AddLineL(R_CLIPINF_DUR, *pTimeText); 
    }
    // bitrate
    if( totalBitrate > 0 && streamCount > 1 )
    {
        CHXAvCleanString bitrateText(R_CLIP_KBPS_FORMAT, totalBitrate / double(CHXAvUtil::k_bitrateBytesPer1k));
        AddLineL(R_CLIPINF_BITRATE_TOTAL, bitrateText());
    }
    // server info //XXXLCM what if smil with live source?
    const char* pServerText = info.GetServerDescription();
    if( pServerText)
    {
        AddLineL(R_CLIPINF_SERVERINFO, CHXAvCleanString(pServerText)());
    }
    
    bool bIncludeStreamBreak = (streamCount > 1);
    // stream info
    for(idx = 0; idx < streamCount; ++idx)
    {
        if( bIncludeStreamBreak )
        {
            AddLineL(KNullDesC, _L("-------"));
        }
        
        comptr<IHXValues> streamHeader = info.GetStreamHeader(idx, idxSource);
        AddStringItemL(R_CLIPINF_STREAM_NAME, streamHeader, "StreamName", val::string);
        AddStringItemL(R_CLIPINF_MIME, streamHeader, "MimeType", val::string);
        AddStringItemL(R_CLIPINF_CODEC, streamHeader, "Codec", val::string);
        // sample rate
        AddIntItemL(R_CLIPINF_SAMPLERATE, streamHeader, "SampleRate", CHXAvCleanString(R_CLIPINF_SAMPLERATE_FORMAT)());
        // channels
        AddIntItemL(R_CLIPINF_CHANNELS, streamHeader, "Channels", KNakedIntFormat);
        
        // bitrate
        UINT32 bitrateStream = info.GetStreamBitrate(idx, idxSource);
        if(bitrateStream > 0)
        {
            CHXAvCleanString bitrateText(R_CLIP_KBPS_FORMAT, bitrateStream / double(CHXAvUtil::k_bitrateBytesPer1k));
            AddLineL(R_CLIPINF_BITRATE, bitrateText());
        }
        // image width and height
        AddIntItemL(R_CLIPINF_WIDTH, streamHeader, "ImageWidth", KNakedIntFormat);
        AddIntItemL(R_CLIPINF_HEIGHT, streamHeader, "ImageHeight", KNakedIntFormat);
        // width and height - qtffplin adds these but they are always 320 x 240
        //AddIntItemL(R_CLIPINF_WIDTH, header, "Width", KNakedIntFormat);
        //AddIntItemL(R_CLIPINF_HEIGHT, header, "Height", KNakedIntFormat);
    }
}
////////////////////////////////////////////////////////
// call ConstructL() on base, then this
void CHXAvClipInfoList::BuildClipInfoL(CHXAvPlayer* pPlayer)
{
    const UINT32 sourceCount = pPlayer->GetClipInfo().GetSourceCount();
    for(UINT32 idxSource = 0; idxSource < sourceCount; ++idxSource)
    {
        BuildClipInfoForSource(pPlayer, idxSource);
    }
    
}

						