public static void PackFrame(CriHcaFrame frame, Crc16 crc, byte[] outBuffer)
{
var writer = new BitWriter(outBuffer);
writer.Write(0xffff, 16);
writer.Write(frame.AcceptableNoiseLevel, 9);
writer.Write(frame.EvaluationBoundary, 7);
foreach (CriHcaChannel channel in frame.Channels)
{
WriteScaleFactors(writer, channel);
if (channel.Type == ChannelType.StereoSecondary)
{
for (int i = 0; i < SubframesPerFrame; i++)
{
writer.Write(channel.Intensity[i], 4);
}
}
else if (frame.Hca.HfrGroupCount > 0)
{
for (int i = 0; i < frame.Hca.HfrGroupCount; i++)
{
writer.Write(channel.HfrScales[i], 6);
}
}
}
for (int sf = 0; sf < SubframesPerFrame; sf++)
{
foreach (CriHcaChannel channel in frame.Channels)
{
WriteSpectra(writer, channel, sf);
}
}
writer.AlignPosition(8);
for (int i = writer.Position / 8; i < frame.Hca.FrameSize - 2; i++)
{
writer.Buffer[i] = 0;
}
WriteChecksum(writer, crc, outBuffer);
}