Ejemplo n.º 1
0
        public static void readMP3Tag(ref MP3 paramMP3)
        {
            // Read the 128 byte ID3 tag into a byte array
            FileStream oFileStream;

            oFileStream = new FileStream(paramMP3.fileComplete, FileMode.Open);
            byte[] bBuffer = new byte[128];
            oFileStream.Seek(-128, SeekOrigin.End);
            oFileStream.Read(bBuffer, 0, 128);
            oFileStream.Close();

            // Convert the Byte Array to a String
            Encoding instEncoding = new ASCIIEncoding(); // NB: Encoding is an Abstract class
            string   id3Tag       = instEncoding.GetString(bBuffer);


            // If there is an attched ID3 v1.x TAG then read it
            if (id3Tag.Substring(0, 3) == "TAG")
            {
                paramMP3.fileType   = paramMP3.fileFileName.Substring(paramMP3.fileFileName.Length - 4, 4).Trim();
                paramMP3.id3Title   = id3Tag.Substring(3, 30).Trim();
                paramMP3.id3Artist  = id3Tag.Substring(33, 30).Trim();
                paramMP3.id3Album   = id3Tag.Substring(63, 30).Trim();
                paramMP3.id3Year    = id3Tag.Substring(93, 4).Trim();
                paramMP3.id3Comment = id3Tag.Substring(97, 28).Trim();

                // Get the track number if TAG conforms to ID3 v1.1
                if (id3Tag[125] == 0)
                {
                    paramMP3.id3TrackNumber = bBuffer[126];
                }
                else
                {
                    paramMP3.id3TrackNumber = 0;
                }
                paramMP3.id3Genre  = bBuffer[127];
                paramMP3.hasID3Tag = true;
                // ********* IF USED IN ANGER: ENSURE to test for non-numeric year
            }
            else
            {
                // ID3 Tag not found so create an empty TAG in case the user saces later
                paramMP3.id3Title       = "Unknown";
                paramMP3.id3Artist      = "Unknown";
                paramMP3.id3Album       = "";
                paramMP3.id3Year        = "";
                paramMP3.id3Comment     = "";
                paramMP3.id3TrackNumber = 0;
                paramMP3.id3Genre       = 0;
                paramMP3.hasID3Tag      = false;
            }
        }
Ejemplo n.º 2
0
        public void InputItem(string s)
        {
            if (s.Length > 0)
            {
                MP3      workingMp3;
                FileInfo fFileInfo = new FileInfo(s);
                workingMp3 = new MP3(fFileInfo.DirectoryName, fFileInfo.Name);
                FileCommands.readMP3Tag(ref workingMp3);

                ListViewItem itm = new ListViewItem();
                itm.Text = workingMp3.fileFileName;
                itm.SubItems.Add(s);
                itm.SubItems.Add(workingMp3.id3Artist);
                itm.SubItems.Add(workingMp3.id3Title);
                itm.SubItems.Add(workingMp3.id3Album);
                itm.SubItems.Add(workingMp3.id3TrackNumber.ToString());
                itm.SubItems.Add(workingMp3.fileType);
                // TODO Implement: genre, duration

                lstPlaylist.Items.Add(itm);
            }
        }
Ejemplo n.º 3
0
        public static void updateMP3Tag(ref MP3 paramMP3)
        {
            // Trim any whitespace
            paramMP3.id3Title   = paramMP3.id3Title.Trim();
            paramMP3.id3Artist  = paramMP3.id3Artist.Trim();
            paramMP3.id3Album   = paramMP3.id3Album.Trim();
            paramMP3.id3Year    = paramMP3.id3Year.Trim();
            paramMP3.id3Comment = paramMP3.id3Comment.Trim();

            // Ensure all properties are correct size
            if (paramMP3.id3Title.Length > 30)
            {
                paramMP3.id3Title = paramMP3.id3Title.Substring(0, 30);
            }
            if (paramMP3.id3Artist.Length > 30)
            {
                paramMP3.id3Artist = paramMP3.id3Artist.Substring(0, 30);
            }
            if (paramMP3.id3Album.Length > 30)
            {
                paramMP3.id3Album = paramMP3.id3Album.Substring(0, 30);
            }
            if (paramMP3.id3Year.Length > 4)
            {
                paramMP3.id3Year = paramMP3.id3Year.Substring(0, 4);
            }
            if (paramMP3.id3Comment.Length > 28)
            {
                paramMP3.id3Comment = paramMP3.id3Comment.Substring(0, 28);
            }

            // Build a new ID3 Tag (128 Bytes)
            byte[] tagByteArray = new byte[128];
            for (int i = 0; i < tagByteArray.Length; i++)
            {
                tagByteArray[i] = 0;                                       // Initialise array to nulls
            }
            // Convert the Byte Array to a String
            Encoding instEncoding = new ASCIIEncoding(); // NB: Encoding is an Abstract class // ************ To DO: Make a shared instance of ASCIIEncoding so we don't keep creating/destroying it

            // Copy "TAG" to Array
            byte[] workingByteArray = instEncoding.GetBytes("TAG");
            Array.Copy(workingByteArray, 0, tagByteArray, 0, workingByteArray.Length);
            // Copy Title to Array
            workingByteArray = instEncoding.GetBytes(paramMP3.id3Title);
            Array.Copy(workingByteArray, 0, tagByteArray, 3, workingByteArray.Length);
            // Copy Artist to Array
            workingByteArray = instEncoding.GetBytes(paramMP3.id3Artist);
            Array.Copy(workingByteArray, 0, tagByteArray, 33, workingByteArray.Length);
            // Copy Album to Array
            workingByteArray = instEncoding.GetBytes(paramMP3.id3Album);
            Array.Copy(workingByteArray, 0, tagByteArray, 63, workingByteArray.Length);
            // Copy Year to Array
            workingByteArray = instEncoding.GetBytes(paramMP3.id3Year);
            Array.Copy(workingByteArray, 0, tagByteArray, 93, workingByteArray.Length);
            // Copy Comment to Array
            workingByteArray = instEncoding.GetBytes(paramMP3.id3Comment);
            Array.Copy(workingByteArray, 0, tagByteArray, 97, workingByteArray.Length);
            // Copy Track and Genre to Array
            tagByteArray[126] = paramMP3.id3TrackNumber;
            tagByteArray[127] = paramMP3.id3Genre;

            // SAVE TO DISK: Replace the final 128 Bytes with our new ID3 tag
            FileStream oFileStream = new FileStream(paramMP3.fileComplete, FileMode.Open);

            if (paramMP3.hasID3Tag)
            {
                oFileStream.Seek(-128, SeekOrigin.End);
            }
            else
            {
                oFileStream.Seek(0, SeekOrigin.End);
            }
            oFileStream.Write(tagByteArray, 0, 128);
            oFileStream.Close();
            paramMP3.hasID3Tag = true;
        }