293 lines
14 KiB
C
293 lines
14 KiB
C
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#ifndef __MEDIAPROP_H__
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#define __MEDIAPROP_H__
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// These should be moved into some central location
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#define PIDISI_CX 0x00000003L // VT_UI4
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#define PIDISI_CY 0x00000004L // VT_UI4
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#define PIDISI_FRAME_COUNT 0x0000000CL // VT_LPWSTR
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#define PIDISI_DIMENSIONS 0x0000000DL // VT_LPWSTR
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#define IsEqualSCID(a, b) (((a).pid == (b).pid) && IsEqualIID((a).fmtid, (b).fmtid) )
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typedef struct
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{
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const SHCOLUMNID *pscid;
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LPCWSTR pszName; // Propstg string name for this property.
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VARTYPE vt; // Note that the type of a given FMTID/PID pair is a known, fixed value
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BOOL bEnumerate; // We don't want to enumerate alias properties.
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} COLMAP;
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#define DEFINE_SCID(name, fmtid, pid) const SHCOLUMNID name = { fmtid, pid }
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DEFINE_SCID(SCID_Author, PSGUID_SUMMARYINFORMATION, PIDSI_AUTHOR);
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DEFINE_SCID(SCID_Title, PSGUID_SUMMARYINFORMATION, PIDSI_TITLE);
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DEFINE_SCID(SCID_Comment, PSGUID_SUMMARYINFORMATION, PIDSI_COMMENTS);
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DEFINE_SCID(SCID_Category, PSGUID_DOCUMENTSUMMARYINFORMATION, PIDDSI_CATEGORY);
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DEFINE_SCID(SCID_MUSIC_Artist, PSGUID_MUSIC, PIDSI_ARTIST);
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DEFINE_SCID(SCID_MUSIC_Album, PSGUID_MUSIC, PIDSI_ALBUM);
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DEFINE_SCID(SCID_MUSIC_Year, PSGUID_MUSIC, PIDSI_YEAR);
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DEFINE_SCID(SCID_MUSIC_Track, PSGUID_MUSIC, PIDSI_TRACK);
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DEFINE_SCID(SCID_MUSIC_Genre, PSGUID_MUSIC, PIDSI_GENRE);
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DEFINE_SCID(SCID_MUSIC_Lyrics, PSGUID_MUSIC, PIDSI_LYRICS);
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DEFINE_SCID(SCID_DRM_Protected, PSGUID_DRM, PIDDRSI_PROTECTED);
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DEFINE_SCID(SCID_DRM_Description, PSGUID_DRM, PIDDRSI_DESCRIPTION);
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DEFINE_SCID(SCID_DRM_PlayCount, PSGUID_DRM, PIDDRSI_PLAYCOUNT);
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DEFINE_SCID(SCID_DRM_PlayStarts, PSGUID_DRM, PIDDRSI_PLAYSTARTS);
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DEFINE_SCID(SCID_DRM_PlayExpires, PSGUID_DRM, PIDDRSI_PLAYEXPIRES);
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DEFINE_SCID(SCID_VIDEO_StreamName, PSGUID_VIDEO, PIDVSI_STREAM_NAME);
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DEFINE_SCID(SCID_VIDEO_FrameRate, PSGUID_VIDEO, PIDVSI_FRAME_RATE);
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DEFINE_SCID(SCID_VIDEO_Bitrate, PSGUID_VIDEO, PIDVSI_DATA_RATE);
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DEFINE_SCID(SCID_VIDEO_SampleSize, PSGUID_VIDEO, PIDVSI_SAMPLE_SIZE);
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DEFINE_SCID(SCID_VIDEO_Compression, PSGUID_VIDEO, PIDVSI_COMPRESSION);
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DEFINE_SCID(SCID_AUDIO_Format, PSGUID_AUDIO, PIDASI_FORMAT);
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DEFINE_SCID(SCID_AUDIO_Duration, PSGUID_AUDIO, PIDASI_TIMELENGTH); //100ns units, not milliseconds. VT_UI8, not VT_UI4
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DEFINE_SCID(SCID_AUDIO_Bitrate, PSGUID_AUDIO, PIDASI_AVG_DATA_RATE);
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DEFINE_SCID(SCID_AUDIO_SampleRate, PSGUID_AUDIO, PIDASI_SAMPLE_RATE);
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DEFINE_SCID(SCID_AUDIO_SampleSize, PSGUID_AUDIO, PIDASI_SAMPLE_SIZE);
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DEFINE_SCID(SCID_AUDIO_ChannelCount, PSGUID_AUDIO, PIDASI_CHANNEL_COUNT);
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DEFINE_SCID(SCID_IMAGE_Width, PSGUID_IMAGESUMMARYINFORMATION, PIDISI_CX);
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DEFINE_SCID(SCID_IMAGE_Height, PSGUID_IMAGESUMMARYINFORMATION, PIDISI_CY);
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DEFINE_SCID(SCID_IMAGE_Dimensions, PSGUID_IMAGESUMMARYINFORMATION, PIDISI_DIMENSIONS);
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DEFINE_SCID(SCID_IMAGE_FrameCount, PSGUID_IMAGESUMMARYINFORMATION, PIDISI_FRAME_COUNT);
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// Docsummary props
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const COLMAP g_CM_Category = { &SCID_Category, L"Category", VT_LPWSTR, FALSE}; // Alias property of Genre
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// SummaryProps
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const COLMAP g_CM_Author = { &SCID_Author, L"Author", VT_LPWSTR, FALSE}; // Alias property of Artist
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const COLMAP g_CM_Title = { &SCID_Title, L"Title", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Comment = { &SCID_Comment, L"Description", VT_LPWSTR, TRUE};
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// Music props
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const COLMAP g_CM_Artist = { &SCID_MUSIC_Artist, L"Author", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Album = { &SCID_MUSIC_Album, L"AlbumTitle", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Year = { &SCID_MUSIC_Year, L"Year", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Track = { &SCID_MUSIC_Track, L"Track", VT_UI4, TRUE}; // NB: This is exposed as a WMT_ATTRTYPE_STRING for mp3. We may need to change it.
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const COLMAP g_CM_Genre = { &SCID_MUSIC_Genre, L"Genre", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Lyrics = { &SCID_MUSIC_Lyrics, L"Lyrics", VT_LPWSTR, TRUE};
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// Audio props
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const COLMAP g_CM_Format = { &SCID_AUDIO_Format, L"Format", VT_LPWSTR, TRUE};
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const COLMAP g_CM_Duration = { &SCID_AUDIO_Duration, L"Duration", VT_UI8, TRUE};
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const COLMAP g_CM_Bitrate = { &SCID_AUDIO_Bitrate, L"Bitrate", VT_UI4, TRUE};
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const COLMAP g_CM_SampleRate = { &SCID_AUDIO_SampleRate, L"SampleRate", VT_UI4, TRUE}; // samples per sec
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const COLMAP g_CM_SampleSize = { &SCID_AUDIO_SampleSize, L"SampleSize", VT_UI4, TRUE};
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const COLMAP g_CM_ChannelCount ={ &SCID_AUDIO_ChannelCount, L"ChannelCount", VT_UI4, TRUE};
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// Video props
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const COLMAP g_CM_StreamName = { &SCID_VIDEO_StreamName, L"StreamName", VT_LPWSTR, TRUE};
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const COLMAP g_CM_FrameRate = { &SCID_VIDEO_FrameRate, L"FrameRate", VT_UI4, TRUE};
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const COLMAP g_CM_SampleSizeV = { &SCID_VIDEO_SampleSize, L"SampleSize", VT_UI4, TRUE}; // different from audio sample simple
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const COLMAP g_CM_BitrateV = { &SCID_VIDEO_Bitrate, L"Bitrate", VT_UI4, TRUE}; // different from audio bitrate
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const COLMAP g_CM_Compression = { &SCID_VIDEO_Compression, L"Compression", VT_LPWSTR, TRUE};
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// Image props
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const COLMAP g_CM_Width = { &SCID_IMAGE_Width, L"Width", VT_UI4, TRUE};
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const COLMAP g_CM_Height = { &SCID_IMAGE_Height, L"Height", VT_UI4, TRUE};
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const COLMAP g_CM_Dimensions = { &SCID_IMAGE_Dimensions, L"Dimensions", VT_LPWSTR, TRUE};
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const COLMAP g_CM_FrameCount = { &SCID_IMAGE_FrameCount, L"FrameCount", VT_UI4, TRUE};
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// DRM props
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const COLMAP g_CM_Protected = { &SCID_DRM_Protected, L"Protected", VT_BOOL, TRUE};
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const COLMAP g_CM_DRMDescription={&SCID_DRM_Description, L"DRMDescription", VT_LPWSTR, TRUE};
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const COLMAP g_CM_PlayCount = { &SCID_DRM_PlayCount, L"PlayCount", VT_UI4, TRUE};
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const COLMAP g_CM_PlayStarts = { &SCID_DRM_PlayStarts, L"PlayStarts", VT_FILETIME,TRUE};
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const COLMAP g_CM_PlayExpires = { &SCID_DRM_PlayExpires, L"PlayExpires", VT_FILETIME,TRUE};
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// Describes each of the property sets an IPropertySetStorage uses.
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typedef struct {
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GUID fmtid; // fmtid for this property set
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const COLMAP **pcmProps; // List of all properties that exist in this set
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ULONG cNumProps;
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} PROPSET_INFO;
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enum MUSICPROPSTG_AUTHLEVEL
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{
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AUTH = 0, NON_AUTH
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};
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enum PROPSTG_STATE
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{
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CLOSED = 0,
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OPENED_SHARED,
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OPENED_DENYREAD,
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OPENED_DENYWRITE,
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OPENED_DENYALL
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};
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class CMediaPropSetStg;
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// Base property storage implementation.
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class CMediaPropStorage : public IPropertyStorage, IQueryPropertyFlags
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{
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public:
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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//IPropertyStorage
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STDMETHODIMP ReadMultiple (ULONG cpspec, const PROPSPEC rgpspec[], PROPVARIANT rgvar[]);
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STDMETHODIMP WriteMultiple (ULONG cpspec, PROPSPEC const rgpspec[], const PROPVARIANT rgvar[], PROPID propidNameFirst);
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STDMETHODIMP DeleteMultiple(ULONG cpspec, PROPSPEC const rgpspec[]);
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STDMETHODIMP ReadPropertyNames (ULONG cpspec, PROPID const rgpropid[], LPWSTR rglpwstrName[]);
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STDMETHODIMP WritePropertyNames (ULONG cpspec, PROPID const rgpropid[], LPWSTR const rglpwstrName[]);
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STDMETHODIMP DeletePropertyNames(ULONG cpspec, PROPID const rgpropid[]);
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STDMETHODIMP SetClass(REFCLSID clsid);
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STDMETHODIMP Commit(DWORD grfCommitFlags);
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STDMETHODIMP Revert();
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STDMETHODIMP Enum(IEnumSTATPROPSTG **ppenum);
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STDMETHODIMP Stat(STATPROPSETSTG *pstatpropstg);
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STDMETHODIMP SetTimes(FILETIME const *pctime, FILETIME const *patime, FILETIME const *pmtime);
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// IQueryPropertyFlags
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STDMETHODIMP GetFlags(const PROPSPEC *pspec, SHCOLSTATEF *pcsFlags);
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CMediaPropStorage(CMediaPropSetStg *ppssParent, CMediaPropStorage *ppsAuthority, REFFMTID fmtid, const COLMAP **ppcmPropInfo, DWORD cNumProps, DWORD dwMode, CRITICAL_SECTION *pcs);
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HRESULT SetProperty(PROPSPEC *ppspec, PROPVARIANT *pvar);//called by the parent to set the initial data
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HRESULT QuickLookup(PROPSPEC *ppspec, PROPVARIANT **ppvar);
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private:
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~CMediaPropStorage();
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HRESULT Open(DWORD dwShareMode, DWORD dwOpenMode, IPropertyStorage **ppPropStg);
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void _ResetPropStorage(); //Resets the Propstorage to a known empty state
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HRESULT CopyPropStorageData(PROPVARIANT *pvarProps);
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void OnClose();
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HRESULT DoCommit(DWORD grfCommitFlags, FILETIME *ftFlushTime, PROPVARIANT *pVarProps, BOOL *pbDirtyFlags);//flush the data to the parent
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HRESULT LookupProp(const PROPSPEC *pspec, const COLMAP **ppcmName, PROPVARIANT **ppvarReadData, PROPVARIANT **ppvarWriteData, BOOL **ppbDirty, BOOL bPropertySet);
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BOOL IsDirectMode();
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BOOL IsSpecialProperty(const PROPSPEC *pspec);
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HRESULT _EnsureSlowPropertiesLoaded();
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virtual BOOL _IsSlowProperty(const COLMAP *pPInfo);
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LONG _cRef;
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COLMAP const **_ppcmPropInfo;
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PROPVARIANT *_pvarProps, *_pvarChangedProps;
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PROPVARIANT _varCodePage;
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BOOL *_pbDirtyFlags;
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ULONG _cNumProps;
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MUSICPROPSTG_AUTHLEVEL _authLevel;
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CMediaPropStorage *_ppsAuthority;
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CMediaPropSetStg *_ppssParent;
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FMTID _fmtid;
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FILETIME _ftLastCommit;
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PROPSTG_STATE _state;
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DWORD _dwMode;
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BOOL _bRetrievedSlowProperties;
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HRESULT _hrSlowProps;
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CRITICAL_SECTION *_pcs; // The parent storage set's critical section.
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friend class CMediaPropSetStg;
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};
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// Base property set storage implementation.
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class CMediaPropSetStg : public IPersistFile, IPropertySetStorage, IWMReaderCallback
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{
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public:
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CMediaPropSetStg();
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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// IPersist
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STDMETHODIMP GetClassID(CLSID *pClassID);
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// IPersistFile
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STDMETHODIMP IsDirty(void);
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STDMETHODIMP Load(LPCOLESTR pszFileName, DWORD dwMode);
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STDMETHODIMP Save(LPCOLESTR pszFileName, BOOL fRemember);
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STDMETHODIMP SaveCompleted(LPCOLESTR pszFileName);
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STDMETHODIMP GetCurFile(LPOLESTR *ppszFileName);
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// IPropertySetStorage
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STDMETHODIMP Create(REFFMTID fmtid, const CLSID * pclsid, DWORD grfFlags, DWORD grfMode, IPropertyStorage** ppPropStg);
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STDMETHODIMP Open(REFFMTID fmtid, DWORD grfMode, IPropertyStorage** ppPropStg);
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STDMETHODIMP Delete(REFFMTID fmtid);
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STDMETHODIMP Enum(IEnumSTATPROPSETSTG** ppenum);
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// IWMReaderCallBack
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STDMETHODIMP OnStatus(WMT_STATUS Staus, HRESULT hr, WMT_ATTR_DATATYPE dwType, BYTE *pValue, void *pvContext);
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STDMETHODIMP OnSample(DWORD dwOutputNum, QWORD cnsSampleTime, QWORD cnsSampleDuration, DWORD dwFlags, INSSBuffer *pSample, void* pcontext);
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virtual HRESULT FlushChanges(REFFMTID fmtid, LONG cNumProps, const COLMAP **pcmapInfo, PROPVARIANT *pVarProps, BOOL *pbDirtyFlags);
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HRESULT Init();
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virtual BOOL _IsSlowProperty(const COLMAP *pPInfo);
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protected:
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HRESULT _ResolveFMTID(REFFMTID fmtid, CMediaPropStorage **ppps);
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HRESULT _PopulateProperty(const COLMAP *pPInfo, PROPVARIANT *pvar);
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BOOL _bIsWritable;
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WCHAR _wszFile[MAX_PATH];
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BOOL _bHasBeenPopulated;
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BOOL _bSlowPropertiesExtracted;
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HRESULT _hrSlowProps;
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HRESULT _hrPopulated;
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UINT _cPropertyStorages;
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CMediaPropStorage **_propStg;
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const PROPSET_INFO *_pPropStgInfo; // Indicates which propstorages to create, etc...
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HANDLE _hFileOpenEvent;
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~CMediaPropSetStg();
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private:
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HRESULT _ResetPropertySet();
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HRESULT _CreatePropertyStorages();
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virtual HRESULT _PopulatePropertySet();
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virtual HRESULT _PopulateSlowProperties();
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virtual HRESULT _PreCheck();
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LONG _cRef;
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DWORD _dwMode;
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// This property handler needes to operate in a FTA because of the content indexing service. If
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// we're created in an STA, it turns out they can't properly impersonate a user across apartment
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// boundaries.
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// This is a critical section we use to provide very "simple" synchronized access to our internal
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// members. Basically, we just wrap every public interface member in Enter/Leave. The WMSDK
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// doesn't throw any exceptions, so we don't need any try-finally's (and hopefully the AVI and WAV
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// code doesn't either).
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// All public interface members in the CMediaPropStorage class are also protected by this same
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// critical section.
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CRITICAL_SECTION _cs;
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friend class CMediaPropStorage;
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};
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// Class used to enumerate through all COLMAPs for the properties supported by a propertysetstorage //
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// Used internally by a PSS when populating properties.
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class CEnumAllProps
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{
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public:
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CEnumAllProps(const PROPSET_INFO *pPropSets, UINT cPropSets);
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const COLMAP *Next();
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private:
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const PROPSET_INFO *_pPropSets;
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UINT _cPropSets;
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UINT _iPropSetPos;
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UINT _iPropPos;
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};
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#endif //__MEDIAPROP_H__
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