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hxapihelp_player.cpp
资源名称：142_61_thumb_advanced.rar　[点击查看]
上传用户：dangjiwu
上传日期：2013-07-19
资源大小：42019k
文件大小：3k
源码类别：

Symbian

开发平台：

Visual C++

hxapihelp_player.cpp：源码内容
  1. /************************************************************************
  2.  * hxsym_hxapihelp_player.cpp
  3.  * -------------
  4.  *
  5.  * Synopsis:
  6.  *  helpers for working with IHXPlayer related helix api interfaces
  7.  *
  8.  *
  9.  * (c) 1995-2003 RealNetworks, Inc. Patents pending. All rights reserved.
  10.  *
  11.  ************************************************************************/
  13. #include "hxtypes.h"
  14. #include "hxcom.h"
  15. #include "hxresult.h"
  16. #include "ihxpckts.h" //IHXValues
  17. #include "hxcore.h" //IHXPlayer
  18. #include "hxsmbw.h" //IHXASMProps
  20. #include "comptr.h"
  21. #include "comptr_traits.h"
  22. #include "hxsym_debug.h"
  23. #include "hxapihelp_player.h"
  26. comptr<IHXStreamSource> player::GetSource(IHXPlayer* pPlayer, UINT32 idxSource)
  27. {
  28.     comptr<IHXStreamSource> streamSource;
  30.     if(idxSource < pPlayer->GetSourceCount())
  31.     {
  32.         comptr<IUnknown> sourceUnknown;
  33.         pPlayer->GetSource( UINT16(idxSource), sourceUnknown.AsRef());
  34.         streamSource.From(sourceUnknown); 
  35.     }
  37.     return streamSource;
  38. }
  40. UINT32 player::GetStreamASMBandwidth(IHXStream* pStream)
  41. {
  42.     UINT32 bw = 0; //IHXStreamBandwidthNegotiator::GetThresholdInfo, IHXASMProps::GetPreData
  44.     comptr<IHXASMProps> props;
  45.     props.From(pStream);
  46.     if(props)
  47.     {
  48.         props->GetBandwidth(bw);
  49.     }
  50.     return bw;
  51. }
  53. comptr<IHXValues> player::GetFileHeader(IHXPlayer* pPlayer, UINT32 idxSource)
  54. {
  55.     comptr<IHXValues> fileHeader;
  56.     comptr<IHXStreamSource> streamSource = GetSource(pPlayer, idxSource);
  57.     fileHeader.From(streamSource);
  59.     return fileHeader;
  61. }
  63. UINT32 player::GetStreamCount(IHXPlayer* pPlayer, UINT32 idxSource)
  64. {
  65.     UINT32 streamCount = 0;
  66.     comptr<IHXStreamSource> streamSource = GetSource(pPlayer, idxSource);
  67.     if( streamSource )
  68.     {
  69.         streamCount = streamSource->GetStreamCount();
  70.     }
  71.        
  72.     return streamCount;
  73. }
  75. comptr<IHXStream> player::GetStream(IHXStreamSource* pStreamSource, UINT32 idxStream)
  76. {
  77.     comptr<IHXStream> stream;
  79.     if( pStreamSource )
  80.     {
  81.         comptr<IUnknown> streamUnknown;
  82.         pStreamSource->GetStream(idxStream, streamUnknown.AsRef());
  83.         stream.From(streamUnknown);
  84.     }
  86.     return stream;
  87. }
  89. comptr<IHXStream> player::GetStream(IHXPlayer* pPlayer, UINT32 idxSource, UINT32 idxStream)
  90. {
  91.     comptr<IHXStream> stream;
  93.     comptr<IHXStreamSource> streamSource = GetSource(pPlayer, idxSource);
  94.     if( streamSource )
  95.     {
  96.         comptr<IUnknown> streamUnknown;
  97.         streamSource->GetStream(idxStream, streamUnknown.AsRef());
  98.         stream.From(streamUnknown);
  99.     }
  101.     return stream;
  102. }
  104. comptr<IHXValues> player::GetStreamHeader(IHXStreamSource* pStreamSource, UINT32 idxStream)
  105. {
  106.     comptr<IHXValues> streamHeader;
  107.     comptr<IHXStream> stream = GetStream(pStreamSource, idxStream);
  108.     streamHeader.Take(stream->GetHeader());
  110.     return streamHeader;
  111. }
  112. comptr<IHXValues> player::GetStreamHeader(IHXPlayer* pPlayer, UINT32 idxSource, UINT32 idxStream)
  113. {
  114.     comptr<IHXValues> streamHeader;
  115.     comptr<IHXStream> stream = GetStream(pPlayer, idxSource, idxStream);
  116.     streamHeader.Take(stream->GetHeader());
  118.     return streamHeader;
  119. }