public void Close()
{
logger.Debug("MfH264Dxva2Decoder::Close()");
if (InputMediaType != null)
{
InputMediaType.Dispose();
InputMediaType = null;
}
if (OutputMediaType != null)
{
OutputMediaType.Dispose();
OutputMediaType = null;
}
if (decoder != null)
{
decoder.Dispose();
decoder = null;
}
}
public bool ProcessSample(Sample inputSample, Action <Sample> OnSampleDecoded, Action <MediaType> OnMediaTypeChanged = null)
{
bool Result = false;
if (inputSample == null)
{
return(false);
}
decoder.ProcessInput(0, inputSample, 0);
//if (decoder.OutputStatus == (int)MftOutputStatusFlags.MftOutputStatusSampleReady)
{
decoder.GetOutputStreamInfo(0, out TOutputStreamInformation streamInfo);
MftOutputStreamInformationFlags flags = (MftOutputStreamInformationFlags)streamInfo.DwFlags;
bool createSample = !flags.HasFlag(MftOutputStreamInformationFlags.MftOutputStreamProvidesSamples);
do
{
Sample pSample = null;
// Create output sample
if (createSample)
{
pSample = MediaFactory.CreateSample();
pSample.SampleTime = inputSample.SampleTime;
pSample.SampleDuration = inputSample.SampleDuration;
pSample.SampleFlags = inputSample.SampleFlags;
//logger.Debug("CreateSample: " + inputSample.SampleTime);
using (var mediaBuffer = MediaFactory.CreateMemoryBuffer(streamInfo.CbSize))
{
pSample.AddBuffer(mediaBuffer);
}
}
TOutputDataBuffer[] outputBuffers = new TOutputDataBuffer[1];
var outputBuffer = new TOutputDataBuffer
{
DwStatus = 0,
DwStreamID = 0,
PSample = pSample,
PEvents = null,
};
outputBuffers[0] = outputBuffer;
var res = decoder.TryProcessOutput(TransformProcessOutputFlags.None, outputBuffers, out TransformProcessOutputStatus status);
//logger.Info("TryProcessOutput(...) " + res + " " + outputDataBuffer[0].DwStatus);
if (res == SharpDX.Result.Ok)
{
var buf = outputBuffers[0];
var outputSample = buf.PSample;
var pEvents = buf.PEvents;
if (pEvents != null)
{
var eventsCount = pEvents.ElementCount;
Debug.Assert(eventsCount == 0, "eventsCount == 0");
if (eventsCount > 0)
{
for (int i = 0; i < eventsCount; i++)
{
var e = pEvents.GetElement(i);
if (e != null)
{
e.Dispose();
e = null;
}
}
}
}
Debug.Assert(outputSample != null, "res.Success && outputSample != null");
OnSampleDecoded?.Invoke(outputSample);
Result = true;
//continue;
}
else if (res == SharpDX.MediaFoundation.ResultCode.TransformNeedMoreInput)
{
//logger.Info("-------------------------");
if (pSample != null)
{
pSample.Dispose();
pSample = null;
}
Result = true;
break;
}
else if (res == SharpDX.MediaFoundation.ResultCode.TransformStreamChange)
{
logger.Warn(res.ToString() + " TransformStreamChange");
MediaType newOutputType = null;
try
{
decoder.TryGetOutputAvailableType(outputStreamId, 0, out newOutputType);
decoder.SetOutputType(outputStreamId, newOutputType, 0);
if (OutputMediaType != null)
{
OutputMediaType.Dispose();
OutputMediaType = null;
}
OutputMediaType = newOutputType;
logger.Info("============== NEW OUTPUT TYPE==================");
logger.Info(MfTool.LogMediaType(OutputMediaType));
OnMediaTypeChanged?.Invoke(OutputMediaType);
}
finally
{
//newOutputType?.Dispose();
//newOutputType = null;
}
}
else
{
res.CheckError();
Result = false;
break;
}
}while (true);
}
return(Result);
}
