public SmackerPlayer(Stream smk_stream, int buffered_frames)
{
file = SmackerFile.OpenFromStream(smk_stream);
decoder= file.Decoder;
this.buffered_frames = buffered_frames;
waitEvent = new AutoResetEvent (false);
}
public static SmackerFile OpenFromStream(Stream s)
{
int i;
SmackerFile file = new SmackerFile();
file.Header = ReadHeader(s);
uint nbFrames = file.Header.NbFrames;
//The ring frame is not counted!
if (file.Header.HasRingFrame())
{
nbFrames++;
}
file.FrameSizes = new UInt32[nbFrames];
file.FrameTypes = new byte[nbFrames];
file.IsV4 = (file.Header.Signature != Util.MakeTag('S', 'M', 'K', '2'));
/* read frame info */
for (i = 0; i < nbFrames; i++)
{
file.FrameSizes[i] = Util.ReadDWord(s);
}
for (i = 0; i < nbFrames; i++)
{
file.FrameTypes[i] = Util.ReadByte(s);
}
//The rest of the header is a bitstream
BitStream m = new BitStream(s);
//Read huffman trees
//MMap
// System.Console.WriteLine("Mono map tree");
file.MMap = new BigHuffmanTree();
file.MMap.BuildTree(m);
//MClr (color map)
// System.Console.WriteLine("Mono Color tree");
file.MClr = new BigHuffmanTree();
file.MClr.BuildTree(m);
//Full (full block stuff)
// System.Console.WriteLine("Full tree");
file.Full = new BigHuffmanTree();
file.Full.BuildTree(m);
//Type (full block stuff)
// System.Console.WriteLine("Type descriptor tree");
file.Type = new BigHuffmanTree();
file.Type.BuildTree(m);
//We are ready to decode frames
file.Stream = s;
return(file);
}
/// <summary>
/// Creates a new decoder for the specified file
/// </summary>
/// <param name="file">the file to create a decoder for</param>
internal SmackerDecoder(SmackerFile file)
{
File = file;
lastAudioData = new byte[7][];
lastFrameData = new byte[File.Header.Width * File.Header.Height];
}
/// <summary>
/// Creates a new decoder for the specified file
/// </summary>
/// <param name="file">the file to create a decoder for</param>
internal SmackerDecoder(SmackerFile file)
{
File = file;
lastAudioData = new byte[7][];
lastFrameData = new byte[File.Header.Width * File.Header.Height];
}
public static SmackerFile OpenFromStream(Stream s)
{
int i;
SmackerFile file = new SmackerFile();
file.Header = ReadHeader(s);
uint nbFrames = file.Header.NbFrames;
//The ring frame is not counted!
if (file.Header.HasRingFrame()) nbFrames++;
file.FrameSizes = new UInt32[nbFrames];
file.FrameTypes = new byte[nbFrames];
file.IsV4 = (file.Header.Signature != Util.MakeTag('S', 'M', 'K', '2'));
/* read frame info */
for (i = 0; i < nbFrames; i++)
{
file.FrameSizes[i] = Util.ReadDWord(s);
}
for (i = 0; i < nbFrames; i++)
{
file.FrameTypes[i] = Util.ReadByte(s);
}
//The rest of the header is a bitstream
BitStream m = new BitStream(s);
//Read huffman trees
//MMap
// System.Console.WriteLine("Mono map tree");
file.MMap = new BigHuffmanTree();
file.MMap.BuildTree(m);
//MClr (color map)
// System.Console.WriteLine("Mono Color tree");
file.MClr = new BigHuffmanTree();
file.MClr.BuildTree(m);
//Full (full block stuff)
// System.Console.WriteLine("Full tree");
file.Full = new BigHuffmanTree();
file.Full.BuildTree(m);
//Type (full block stuff)
// System.Console.WriteLine("Type descriptor tree");
file.Type = new BigHuffmanTree();
file.Type.BuildTree(m);
//We are ready to decode frames
file.Stream = s;
return file;
}
