示例#1
0
文件: SEQ.cs 项目: Hatry1337/MIDI2SEQ
        public byte[] ToMIDI()
        {
            RIFF riff = new RIFF("MIDI");

            byte[] mthd = new byte[6];
            BEBitConv.ToInt16(mthd, 0, 0);
            BEBitConv.ToInt16(mthd, 2, 1);
            BEBitConv.ToInt16(mthd, 4, Resolution);
            riff.Items.Add(new RIFFData("MThd", mthd));
            byte[] mtrk = new byte[15 + Data.Length];
            mtrk[0] = 0;
            mtrk[1] = 0xFF;
            mtrk[2] = 0x51;
            mtrk[3] = 0x03;
            MIDIConv.To3BE(mtrk, 4, Tempo);
            mtrk[7]  = 0;
            mtrk[8]  = 0xFF;
            mtrk[9]  = 0x58;
            mtrk[10] = 0x04;
            BEBitConv.ToInt16(mtrk, 11, Rhythm);
            mtrk[13] = 0x18;
            mtrk[14] = 0x08;
            Data.CopyTo(mtrk, 15);
            riff.Items.Add(new RIFFData("MTrk", mtrk));
            return(riff.SaveBody(Endianness.BigEndian));
        }
示例#2
0
文件: SEQ.cs 项目: Hatry1337/MIDI2SEQ
        public static SEQ Load(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }
            // All SEP/SEQ stuff is big-endian, like MIDI
            if (data.Length < 15)
            {
                MessageBox.Show("SEQ: Data is too short");
            }
            int magic   = BEBitConv.FromInt32(data, 0);
            int version = BEBitConv.FromInt32(data, 4);

            if (magic != Magic)
            {
                MessageBox.Show("SEQ: Magic number is wrong");
            }
            if (version != Version)
            {
                MessageBox.Show("SEQ: Version number is wrong");
            }
            short resolution = BEBitConv.FromInt16(data, 8);
            int   tempo      = MIDIConv.From3BE(data, 10);
            short rhythm     = BEBitConv.FromInt16(data, 13);

            byte[] scoredata = new byte[data.Length - 15];
            Array.Copy(data, 15, scoredata, 0, scoredata.Length);
            return(new SEQ(resolution, tempo, rhythm, scoredata));
        }
示例#3
0
文件: SEQ.cs 项目: Hatry1337/MIDI2SEQ
 public byte[] Save()
 {
     byte[] result = new byte[15 + Data.Length];
     BEBitConv.ToInt32(result, 0, Magic);
     BEBitConv.ToInt32(result, 4, Version);
     BEBitConv.ToInt16(result, 8, Resolution);
     MIDIConv.To3BE(result, 10, Tempo);
     BEBitConv.ToInt16(result, 13, Rhythm);
     Data.CopyTo(result, 15);
     return(result);
 }
示例#4
0
文件: SEQ.cs 项目: Hatry1337/MIDI2SEQ
        public static SEQ FromMIDI(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }

            if (data.Length < 15)
            {
                MessageBox.Show("MIDI: Data is too short");
            }

            short resolution = BEBitConv.FromInt16(data, 12);

            int   tempo  = MIDIConv.From3BE(data, 26);
            short rhythm = BEBitConv.FromInt16(data, 33);

            byte[] scoredata = new byte[data.Length - 37];
            Array.Copy(data, 37, scoredata, 0, scoredata.Length);
            return(new SEQ(resolution, tempo, rhythm, scoredata));
        }