id3tag.cpp

更新mp3

}

STDMETHODIMP CID3Tag::put_Year(BSTR newVal)
{
	USES_CONVERSION;
	try
	{
		ID3_AddYear(m_ID3Tag, OLE2A(newVal), true);
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
	return S_OK;
}

STDMETHODIMP CID3Tag::get_Track(long *pVal)
{
	try
	{
		*pVal = -1;
		*pVal = ID3_GetTrackNum(m_ID3Tag);
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_Track(long newVal)
{
	try
	{
		ID3_AddTrack(m_ID3Tag, (uchar)newVal, 0, true);
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_LastPlayed(DATE *pVal)
{
	try
	{
		*pVal = 0;
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "LastPlayed");
		if (pFrame != NULL)
		{
			char* szLastPlayed = ID3_GetString(pFrame, ID3FN_TEXT);
			if(szLastPlayed != NULL)
			{
				*pVal = atof(szLastPlayed);
				delete [] szLastPlayed;
			}
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_LastPlayed(DATE newVal)
{
	try
	{
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "LastPlayed");
		if(pFrame == NULL)
		{
			pFrame = new ID3_Frame(ID3FID_USERTEXT);
			pFrame->Field(ID3FN_DESCRIPTION) = "LastPlayed";
			pFrame->Field(ID3FN_TEXTENC) = ID3TE_ASCII;
			m_ID3Tag->AttachFrame(pFrame);
		}
		char Buffer[40];
		sprintf(Buffer, "%6.7f", newVal);
		pFrame->Field(ID3FN_TEXT) = Buffer;
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_HasV1Tag(VARIANT_BOOL *pVal)
{
	try
	{
		*pVal = VARIANT_FALSE;
		if (m_ID3Tag->HasTagType(ID3TT_ID3V1))
		{
			*pVal = VARIANT_TRUE;
		}	
		else
		{
			*pVal = VARIANT_FALSE;
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_HasV2Tag(VARIANT_BOOL *pVal)
{
	try
	{
		*pVal = VARIANT_FALSE;
		if (m_ID3Tag->HasTagType(ID3TT_ID3V2))
		{
			*pVal = VARIANT_TRUE;
		}	
		else
		{
			*pVal = VARIANT_FALSE;
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_HasLyrics(VARIANT_BOOL *pVal)
{
	try
	{
		if (m_ID3Tag->HasTagType(ID3TT_LYRICS))
		{
			*pVal = VARIANT_TRUE;
		}	
		else
		{
			*pVal = VARIANT_FALSE;
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::FindFrameString(eID3FrameTypes FrameID, eID3FieldTypes FieldType, BSTR FindString, VARIANT_BOOL CreateNewIfNotFound, IID3ComFrame** pVal)
{
	try
	{
		*pVal = NULL;
		ID3_Frame* pFrame = m_ID3Tag->Find((enum ID3_FrameID)FrameID, (enum ID3_FieldID)FieldType, FindString);
		if(CreateNewIfNotFound == VARIANT_TRUE && pFrame == NULL)
		{
			pFrame = new ID3_Frame((enum ID3_FrameID)FrameID);
			pFrame->Field((enum ID3_FieldID)FieldType) = FindString;
                        m_ID3Tag->AttachFrame(pFrame);
		}
		if(pFrame != NULL)
		{
			*pVal = CID3Frame::CreateObject(this, pFrame);
			(*pVal)->AddRef();
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}


STDMETHODIMP CID3Tag::get_PlayCount(BSTR EMailAddress, long *pVal)
{
	try
	{
		*pVal = 0;
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_POPULARIMETER, ID3FN_EMAIL, EMailAddress);
		if (pFrame != NULL)
		{
			*pVal = pFrame->Field(ID3FN_COUNTER).Get();
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_PlayCount(BSTR EMailAddress, long newVal)
{
	try
	{
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_POPULARIMETER, ID3FN_EMAIL, EMailAddress);
		if(pFrame == NULL)
		{
			pFrame = new ID3_Frame(ID3FID_POPULARIMETER);
			pFrame->Field(ID3FN_EMAIL) = EMailAddress;
			m_ID3Tag->AttachFrame(pFrame);
		}
		pFrame->Field(ID3FN_COUNTER) = newVal;
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_Popularity(BSTR EMailAddress, short *pVal)
{
	try
	{
		*pVal = 0;
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_POPULARIMETER, ID3FN_EMAIL, EMailAddress);
		if (pFrame != NULL)
		{
			*pVal = (short)pFrame->Field(ID3FN_RATING).Get();
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_Popularity(BSTR EMailAddress, short newVal)
{
	try
	{
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_POPULARIMETER, ID3FN_EMAIL, EMailAddress);
		if(pFrame == NULL)
		{
			pFrame = new ID3_Frame(ID3FID_POPULARIMETER);
			pFrame->Field(ID3FN_EMAIL) = EMailAddress;
			m_ID3Tag->AttachFrame(pFrame);
		}
		pFrame->Field(ID3FN_RATING) = newVal;
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_TagCreated(DATE *pVal)
{
	try
	{
		*pVal = 0;
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "TagCreated");
		if (pFrame != NULL)
		{
			char* szTagCreated = ID3_GetString(pFrame, ID3FN_TEXT);
			if(szTagCreated != NULL)
			{
				*pVal = atof(szTagCreated);
				delete [] szTagCreated;
			}
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_TagCreated(DATE newVal)
{
	try
	{
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "TagCreated");
		if(pFrame == NULL)
		{
			pFrame = new ID3_Frame(ID3FID_USERTEXT);
			pFrame->Field(ID3FN_DESCRIPTION) = "TagCreated";
			pFrame->Field(ID3FN_TEXTENC) = ID3TE_ASCII;
			m_ID3Tag->AttachFrame(pFrame);
		}
		char Buffer[40];
		sprintf(Buffer, "%6.7f", newVal);
		pFrame->Field(ID3FN_TEXT) = Buffer;
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_PercentVolumeAdjust(double *pVal)
{
	try
	{
		*pVal = 100;
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "PercentVolAdj");
		if (pFrame != NULL)
		{
			char* szVolAdjust = ID3_GetString(pFrame, ID3FN_TEXT);
			if(szVolAdjust != NULL)
			{
				*pVal = atof(szVolAdjust);
				delete [] szVolAdjust;
			}
		}
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_PercentVolumeAdjust(double newVal)
{
	try
	{
		ID3_Frame *pFrame = m_ID3Tag->Find(ID3FID_USERTEXT, ID3FN_DESCRIPTION, "PercentVolAdj");
		if(pFrame == NULL)
		{
			pFrame = new ID3_Frame(ID3FID_USERTEXT);
			pFrame->Field(ID3FN_DESCRIPTION) = "PercentVolAdj";
			pFrame->Field(ID3FN_TEXTENC) = ID3TE_ASCII;
			m_ID3Tag->AttachFrame(pFrame);
		}
		char Buffer[40];
		sprintf(Buffer, "%6.7f", newVal);
		pFrame->Field(ID3FN_TEXT) = Buffer;
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_Padding(VARIANT_BOOL newVal)
{
	try
	{
		m_ID3Tag->SetPadding(newVal == VARIANT_TRUE);
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::put_UnSync(VARIANT_BOOL newVal)
{
	try
	{
		m_ID3Tag->SetUnsync(newVal == VARIANT_TRUE);
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::get_VersionString(BSTR *pVal)
{
	USES_CONVERSION;
	try
	{
		// this buffer needs to be overly large
		// for some unexplained reason
		// if the size is small you get what?
		char Buffer[1024];
		sprintf(Buffer, "id3com %d.%d.%d Compiled %s %s", _ID3LIB_MAJOR_VERSION,
														_ID3LIB_MINOR_VERSION,
														_ID3LIB_PATCH_VERSION,
														__DATE__,
														__TIME__);
		*pVal = SysAllocString(A2W(Buffer));
		return S_OK;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
}

STDMETHODIMP CID3Tag::RemoveFrame(eID3FrameTypes FrameID)
{
	// TODO: Add your implementation code here
	HRESULT hr=S_OK;
	try
	{
		ID3_Frame* pFrame = m_ID3Tag->Find((enum ID3_FrameID)FrameID);
		if (pFrame)
		{
			/* pTag is an ID3_Tag */
			delete m_ID3Tag->RemoveFrame(pFrame);
		}
		else
			hr = E_POINTER;
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}
	return hr;
}

STDMETHODIMP CID3Tag::RemoveFrameByNum(long FrameNum)
{
	HRESULT hr=S_OK;
	try
	{
        ID3_Frame* pFrame = NULL;
        ID3_Tag::Iterator* it = m_ID3Tag->CreateIterator();
        pFrame = it->GetNext();
        while(FrameNum)
        {
            pFrame = it->GetNext();
            --FrameNum;
        }
        delete it;

		if(pFrame)
		{
			/* pTag is an ID3_Tag */
			delete m_ID3Tag->RemoveFrame(pFrame);			
		}
		else
        {
			hr = E_POINTER;
        }
	}
	catch (...)
	{
		return AtlReportError(CLSID_ID3ComTag, "An unexpected error has occurred", IID_IID3ComTag, E_UNEXPECTED);
	}

	return hr;
}
///////////////////////////////////////////////////////
// End Added Philip Oldaker 12-Aug 2000
///////////////////////////////////////////////////////