/// <summary>
/// Exports the external audio media to a destination <see cref="Presentation"/>
/// - part of technical construct to have <see cref="Export"/> return <see cref="ExternalAudioMedia"/>
/// </summary>
/// <param name="destPres">The destination presentation</param>
/// <returns>The exported external audio media</returns>
protected override Media ExportProtected(Presentation destPres)
{
ExternalAudioMedia exported = (ExternalAudioMedia)base.ExportProtected(destPres);
exported.Src = Src;
exported.ClipBegin = ClipBegin.Copy();
exported.ClipEnd = ClipEnd.Copy();
return(exported);
}
///<summary>
///
///</summary>
///<returns></returns>
protected override Media CopyProtected()
{
ExternalAudioMedia copy = (ExternalAudioMedia)base.CopyProtected();
copy.Src = Src;
copy.ClipBegin = ClipBegin.Copy();
copy.ClipEnd = ClipEnd.Copy();
return(copy);
}
/// <summary>
/// Exports the clip to a destination <see cref="Presentation"/>
/// </summary>
/// <param name="destPres">The destination <see cref="Presentation"/></param>
/// <returns>The exported clip</returns>
public WavClip Export(Presentation destPres)
{
Time clipEnd = null;
if (!IsClipEndTiedToEOM)
{
clipEnd = ClipEnd.Copy();
}
WavClip newClip = new WavClip(DataProvider.Export(destPres), ClipBegin, clipEnd);
newClip.m_cachedDuration = m_cachedDuration.Copy();
newClip.m_cachedPcmFormat = new AudioLibPCMFormat();
newClip.m_cachedPcmFormat.CopyFrom(m_cachedPcmFormat);
return(newClip);
}
/// <summary>
/// Creates a copy of the wav clip
/// </summary>
/// <returns>The copy</returns>
public WavClip Copy()
{
Time clipEnd = null;
if (!IsClipEndTiedToEOM)
{
clipEnd = ClipEnd.Copy();
}
//TODO: Check that sharing DataProvider with the copy is not a problem
// REMARK: FileDataProviders: once created, binary content (including RIFF header) is never changed.
// therefore, OPEN-only FileStream access should work concurrently (i.e. FileShare.Read)
WavClip newClip = new WavClip(DataProvider, ClipBegin, clipEnd);
newClip.m_cachedDuration = m_cachedDuration.Copy();
newClip.m_cachedPcmFormat = new AudioLibPCMFormat();
newClip.m_cachedPcmFormat.CopyFrom(m_cachedPcmFormat);
return(newClip);
}
/// <summary>
/// Exports the external video media to a destination <see cref="Presentation"/>
/// </summary>
/// <param name="destPres">The destination presentation</param>
/// <returns>The exported external video media</returns>
protected override Media ExportProtected(Presentation destPres)
{
ExternalVideoMedia exported = (ExternalVideoMedia)base.ExportProtected(destPres);
exported.Src = Src;
if (ClipBegin.IsNegative)
{
exported.ClipBegin = ClipBegin.Copy();
exported.ClipEnd = ClipEnd.Copy();
}
else
{
exported.ClipEnd = ClipEnd.Copy();
exported.ClipBegin = ClipBegin.Copy();
}
exported.Width = Width;
exported.Height = Height;
return(exported);
}
///<summary>
///
///</summary>
///<returns></returns>
protected override Media CopyProtected()
{
ExternalVideoMedia copy = (ExternalVideoMedia)base.CopyProtected();
copy.Src = Src;
if (ClipBegin.IsNegative)
{
copy.ClipBegin = ClipBegin.Copy();
copy.ClipEnd = ClipEnd.Copy();
}
else
{
copy.ClipEnd = ClipEnd.Copy();
copy.ClipBegin = ClipBegin.Copy();
}
copy.Width = Width;
copy.Height = Height;
return(copy);
}