//static public IEnumerable<byte[]> DecodeStream(Stream s, FourCC fourcc = FourCC.NV12, AccelerationLevel acceleration = AccelerationLevel.BestAvailableAccelerationUseGPUorCPU)
//{
// return null;
//}
/// <summary>
/// Construct the decoder.
/// </summary>
/// <param name="stream">Stream be read from</param>
/// <param name="codecId">What format the bitstream is in: AVC, HEVC, MJPEG, ...</param>
/// <param name="impl">implementation to use</param>
/// <param name="outIOPattern">memory type for decoding</param>
public StreamDecoder(Stream stream, CodecId codecId, mfxIMPL impl = mfxIMPL.MFX_IMPL_AUTO, IOPattern outIOPattern = IOPattern.MFX_IOPATTERN_OUT_SYSTEM_MEMORY)
{
long oldposition = stream.Position;
var buf = new byte[65536]; //avail after init
int n = stream.Read(buf, 0, buf.Length);
if (n < buf.Length)
{
Array.Resize(ref buf, n);
}
stream.Position = oldposition;
this.decoderParameters = QuickSyncStatic.DecodeHeader(buf, codecId, impl);
this.decoderParameters.IOPattern = outIOPattern;
lowLevelDecoder = new LowLevelDecoder(decoderParameters, null, impl);
Init(stream);
}
/// <summary>Reads the file header information.</summary>
/// <param name="codecId">The codec identifier.</param>
/// <param name="impl">The implementation.</param>
/// <param name="infs">The infs.</param>
/// <param name="outIOPattern">The out io pattern.</param>
/// <returns></returns>
public static unsafe mfxVideoParam ReadFileHeaderInfo(CodecId codecId, mfxIMPL impl, Stream infs, IOPattern outIOPattern)
{
long oldposition = infs.Position;
var buf = new byte[65536]; //avail after init
int n = infs.Read(buf, 0, buf.Length);
if (n < buf.Length)
{
Array.Resize(ref buf, n);
}
infs.Position = oldposition;
var decoderParameters = QuickSyncStatic.DecodeHeader(buf, codecId, impl);
decoderParameters.IOPattern = outIOPattern;
return(decoderParameters);
}
