/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Gets the playback rate capabilitys for the session
/// </summary>
/// <param name="mediaSession">the media session. If not null, we will
/// populate this object from the session</param>
/// <history>
/// 01 Nov 18 Cynic - Started
/// </history>
public bool AcquirePlayBackRates(IMFMediaSession mediaSession)
{
bool outBool;
bool wantThinned;
float supportedRate;
Reset();
if (mediaSession == null)
{
return(false);
}
try
{
// first we acquire the thinned rates
wantThinned = true;
outBool = TantaWMFUtils.GetFastestRate(mediaSession, MFRateDirection.Forward, wantThinned, out supportedRate);
if (outBool == true)
{
fastestForwardSpeedThinned = Math.Abs(supportedRate);
}
outBool = TantaWMFUtils.GetSlowestRate(mediaSession, MFRateDirection.Forward, wantThinned, out supportedRate);
if (outBool == true)
{
slowestForwardSpeedThinned = Math.Abs(supportedRate);
}
// now test for the reverse being possible with this thinning mode
outBool = TantaWMFUtils.IsRewindSupported(mediaSession, wantThinned);
if (outBool == true)
{
reverseSpeedIsSupportedThinned = true;
outBool = TantaWMFUtils.GetFastestRate(mediaSession, MFRateDirection.Reverse, wantThinned, out supportedRate);
if (outBool == true)
{
fastestReverseSpeedThinned = Math.Abs(supportedRate);
}
outBool = TantaWMFUtils.GetSlowestRate(mediaSession, MFRateDirection.Reverse, wantThinned, out supportedRate);
if (outBool == true)
{
slowestReverseSpeedThinned = Math.Abs(supportedRate);
}
}
// next we acquire the thinned rates
wantThinned = false;
outBool = TantaWMFUtils.GetFastestRate(mediaSession, MFRateDirection.Forward, wantThinned, out supportedRate);
if (outBool == true)
{
fastestForwardSpeedNonThinned = Math.Abs(supportedRate);
}
outBool = TantaWMFUtils.GetSlowestRate(mediaSession, MFRateDirection.Forward, wantThinned, out supportedRate);
if (outBool == true)
{
slowestForwardSpeedNonThinned = Math.Abs(supportedRate);
}
// now test for the reverse being possible with this thinning mode
outBool = TantaWMFUtils.IsRewindSupported(mediaSession, wantThinned);
if (outBool == true)
{
reverseSpeedIsSupportedNonThinned = true;
outBool = TantaWMFUtils.GetFastestRate(mediaSession, MFRateDirection.Reverse, wantThinned, out supportedRate);
if (outBool == true)
{
fastestReverseSpeedNonThinned = Math.Abs(supportedRate);
}
outBool = TantaWMFUtils.GetSlowestRate(mediaSession, MFRateDirection.Reverse, wantThinned, out supportedRate);
if (outBool == true)
{
slowestReverseSpeedNonThinned = Math.Abs(supportedRate);
}
}
capabilityRequestSuccessful = true;
}
catch
{
capabilityRequestSuccessful = false;
}
return(CapabilityRequestSuccessful);
}