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-rw-r--r--thirdparties/win32/include/directshow/mtype.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/thirdparties/win32/include/directshow/mtype.h b/thirdparties/win32/include/directshow/mtype.h
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+++ b/thirdparties/win32/include/directshow/mtype.h
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+//------------------------------------------------------------------------------
+// File: MtType.h
+//
+// Desc: DirectShow base classes - defines a class that holds and manages
+// media type information.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved.
+//------------------------------------------------------------------------------
+
+
+#ifndef __MTYPE__
+#define __MTYPE__
+
+/* Helper class that derived pin objects can use to compare media
+ types etc. Has same data members as the struct AM_MEDIA_TYPE defined
+ in the streams IDL file, but also has (non-virtual) functions */
+
+class CMediaType : public _AMMediaType {
+
+public:
+
+ ~CMediaType();
+ CMediaType();
+ CMediaType(const GUID * majortype);
+ CMediaType(const AM_MEDIA_TYPE&, HRESULT* phr = NULL);
+ CMediaType(const CMediaType&, HRESULT* phr = NULL);
+
+ CMediaType& operator=(const CMediaType&);
+ CMediaType& operator=(const AM_MEDIA_TYPE&);
+
+ BOOL operator == (const CMediaType&) const;
+ BOOL operator != (const CMediaType&) const;
+
+ HRESULT Set(const CMediaType& rt);
+ HRESULT Set(const AM_MEDIA_TYPE& rt);
+
+ BOOL IsValid() const;
+
+ const GUID *Type() const { return &majortype;} ;
+ void SetType(const GUID *);
+ const GUID *Subtype() const { return &subtype;} ;
+ void SetSubtype(const GUID *);
+
+ BOOL IsFixedSize() const {return bFixedSizeSamples; };
+ BOOL IsTemporalCompressed() const {return bTemporalCompression; };
+ ULONG GetSampleSize() const;
+
+ void SetSampleSize(ULONG sz);
+ void SetVariableSize();
+ void SetTemporalCompression(BOOL bCompressed);
+
+ // read/write pointer to format - can't change length without
+ // calling SetFormat, AllocFormatBuffer or ReallocFormatBuffer
+
+ BYTE* Format() const {return pbFormat; };
+ ULONG FormatLength() const { return cbFormat; };
+
+ void SetFormatType(const GUID *);
+ const GUID *FormatType() const {return &formattype; };
+ BOOL SetFormat(BYTE *pFormat, ULONG length);
+ void ResetFormatBuffer();
+ BYTE* AllocFormatBuffer(ULONG length);
+ BYTE* ReallocFormatBuffer(ULONG length);
+
+ void InitMediaType();
+
+ BOOL MatchesPartial(const CMediaType* ppartial) const;
+ BOOL IsPartiallySpecified(void) const;
+};
+
+
+/* General purpose functions to copy and delete a task allocated AM_MEDIA_TYPE
+ structure which is useful when using the IEnumMediaFormats interface as
+ the implementation allocates the structures which you must later delete */
+
+void WINAPI DeleteMediaType(AM_MEDIA_TYPE *pmt);
+AM_MEDIA_TYPE * WINAPI CreateMediaType(AM_MEDIA_TYPE const *pSrc);
+HRESULT WINAPI CopyMediaType(AM_MEDIA_TYPE *pmtTarget, const AM_MEDIA_TYPE *pmtSource);
+void WINAPI FreeMediaType(AM_MEDIA_TYPE& mt);
+
+// Initialize a media type from a WAVEFORMATEX
+
+STDAPI CreateAudioMediaType(
+ const WAVEFORMATEX *pwfx,
+ AM_MEDIA_TYPE *pmt,
+ BOOL bSetFormat);
+
+#endif /* __MTYPE__ */
+
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