/// <summary>Reads an MP3Frame from a stream</summary>
/// <remarks>http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm has some good info
/// also see http://www.codeproject.com/KB/audio-video/mpegaudioinfo.aspx
/// </remarks>
/// <returns>A valid MP3 frame, or null if none found</returns>
// Token: 0x060003A3 RID: 931 RVA: 0x0000CA4C File Offset: 0x0000AC4C
public static Mp3Frame LoadFromStream(Stream input, bool readData)
{
Mp3Frame mp3Frame = new Mp3Frame();
mp3Frame.FileOffset = input.Position;
byte[] array = new byte[4];
int num = input.Read(array, 0, array.Length);
if (num < array.Length)
{
return(null);
}
while (!Mp3Frame.IsValidHeader(array, mp3Frame))
{
array[0] = array[1];
array[1] = array[2];
array[2] = array[3];
num = input.Read(array, 3, 1);
if (num < 1)
{
return(null);
}
mp3Frame.FileOffset += 1L;
}
int num2 = mp3Frame.FrameLength - 4;
if (readData)
{
mp3Frame.RawData = new byte[mp3Frame.FrameLength];
Array.Copy(array, mp3Frame.RawData, 4);
num = input.Read(mp3Frame.RawData, 4, num2);
if (num < num2)
{
throw new EndOfStreamException("Unexpected end of stream before frame complete");
}
}
else
{
input.Position += (long)num2;
}
return(mp3Frame);
}