/// <summary>
/// Load Xing Header
/// </summary>
/// <param name="frame">Frame</param>
/// <returns>Xing Header</returns>
// Token: 0x060003C9 RID: 969 RVA: 0x0000D1D0 File Offset: 0x0000B3D0
public static XingHeader LoadXingHeader(Mp3Frame frame)
{
XingHeader xingHeader = new XingHeader();
xingHeader.frame = frame;
int num;
if (frame.MpegVersion == MpegVersion.Version1)
{
if (frame.ChannelMode != ChannelMode.Mono)
{
num = 36;
}
else
{
num = 21;
}
}
else
{
if (frame.MpegVersion != MpegVersion.Version2)
{
return(null);
}
if (frame.ChannelMode != ChannelMode.Mono)
{
num = 21;
}
else
{
num = 13;
}
}
if (frame.RawData[num] == 88 && frame.RawData[num + 1] == 105 && frame.RawData[num + 2] == 110 && frame.RawData[num + 3] == 103)
{
xingHeader.startOffset = num;
num += 4;
XingHeader.XingHeaderOptions xingHeaderOptions = (XingHeader.XingHeaderOptions)XingHeader.ReadBigEndian(frame.RawData, num);
num += 4;
if ((xingHeaderOptions & XingHeader.XingHeaderOptions.Frames) != (XingHeader.XingHeaderOptions) 0)
{
xingHeader.framesOffset = num;
num += 4;
}
if ((xingHeaderOptions & XingHeader.XingHeaderOptions.Bytes) != (XingHeader.XingHeaderOptions) 0)
{
xingHeader.bytesOffset = num;
num += 4;
}
if ((xingHeaderOptions & XingHeader.XingHeaderOptions.Toc) != (XingHeader.XingHeaderOptions) 0)
{
xingHeader.tocOffset = num;
num += 100;
}
if ((xingHeaderOptions & XingHeader.XingHeaderOptions.VbrScale) != (XingHeader.XingHeaderOptions) 0)
{
xingHeader.vbrScale = XingHeader.ReadBigEndian(frame.RawData, num);
num += 4;
}
xingHeader.endOffset = num;
return(xingHeader);
}
return(null);
}
