結構類型是由 formattype 成員所指定。 除非 formattype 是GUID_Null或FORMAT_None,否則格式結構必須存在。 pbFormat緩衝區必須藉由呼叫CoTaskMemAlloc來配置。 若要釋放格式區塊,請呼叫 FreeMediaType。 備註 當兩個針腳連接時,它們會交涉媒體類型,該類型是由 AM_MEDIA_TYPE 結構所定義。 媒體類型描述篩選將交換的...
格式區塊的指標。 結構類型是由formattype成員所指定。 除非formattype是GUID_Null或FORMAT_None,否則格式結構必須存在。 pbFormat緩衝區必須藉由呼叫CoTaskMemAlloc來配置。 若要釋放格式區塊,請呼叫FreeMediaType。 備註 當兩個針腳連接時,它們會交涉媒體類型,該類型是由AM_MEDIA_TYPE結構所定義。 媒體類型描述篩選將交...
typedef struct _MediaType{ GUID majortype; GUID subtype; BOOL bFixedSizeSamples; BOOL bTemporalCompression; ULONG lSampleSize; GUID formattype; IUnknown* pUnk; ULONG cbFormat; /* [size_is] */ BYTE __RPC_FAR* pbFormat; } AM_MEDIA_TYPE; ...
AM_MEDIA_TYPE構造体は、メディア サンプルのフォーマットを記述する。 構文 コピー typedef struct _MediaType { GUID majortype; GUID subtype; BOOL bFixedSizeSamples; BOOL bTemporalCompression; ULONG lSampleSize; GUID formattype; IUnknown *pUnk; ULONG cbFormat; [size_is(cbFormat)] BYTE *...
的的AM_MEDIA_TYPE结构是后跟一个可变长度的数据块中包含的特定格式资讯。pbFormat成员指向这个块,称为格式块。的格式块的布局取决于不同的流中的数据,并在指定由formattype会员。格式块可能是NULL。检查成员cbFormat的大小来确定。铸pbFormat的成员访问的格式块。例如: ...
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ConnectionMediaType CurrentRate CurrentStartTime CurrentStopTime 断开连接 DisconnectInternal DisplayPinInfo DisplayTypeInfo EndOfStream EnumMediaTypes GetConnected GetMediaType GetMediaTypeVersion 非活动 IncrementTypeVersion IsConnected IsStopped 名称
ConnectionMediaType CurrentRate CurrentStartTime CurrentStopTime 断开连接 DisconnectInternal DisplayPinInfo DisplayTypeInfo EndOfStream EnumMediaTypes GetConnected GetMediaType GetMediaTypeVersion 非活动 IncrementTypeVersion IsConnected IsStopped 名称
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