コード例 #1
0
        /// <summary>Initializes a new instance of the <see cref="ID3v2Frame"/> class.</summary>
        /// <param name="frame">The frame.</param>
        /// <exception cref="ArgumentNullException">Frame.</exception>
        public ID3v2Frame(ID3v2Frame frame)
        {
            if (frame == null)
            {
                throw new ArgumentNullException("Frame");
            }

            m_Data    = frame.m_Data;
            m_Content = frame.m_Content;
            m_Header  = frame.m_Header;
        }
コード例 #2
0
        /// <summary>Initializes a new instance of the <see cref="ID3v2Frame"/> class.</summary>
        /// <param name="frame">The frame.</param>
        /// <exception cref="ArgumentNullException">Frame.</exception>
        public ID3v2Frame(ID3v2Frame frame)
        {
            if (frame == null)
            {
                throw new ArgumentNullException("Frame");
            }

            RawData = frame.RawData;
            Content = frame.Content;
            Header  = frame.Header;
        }
コード例 #3
0
ファイル: ID3v2Builder.cs プロジェクト: elfen20/cave-media
 /// <summary>Replaces the first frame with the same ID or adds a new one.</summary>
 /// <param name="frame">The frame.</param>
 public void ReplaceFrame(ID3v2Frame frame)
 {
     for (int i = 0; i < frames.Count; i++)
     {
         if (string.Equals(frames[i].ID, frame.ID, StringComparison.InvariantCultureIgnoreCase))
         {
             frames[i] = frame;
             return;
         }
     }
     AddFrame(frame);
 }
コード例 #4
0
ファイル: ID3v2Builder.cs プロジェクト: elfen20/cave-media
 /// <summary>Removes the frame.</summary>
 /// <param name="frame">The frame.</param>
 public void RemoveFrame(ID3v2Frame frame)
 {
     frames.Remove(frame);
 }
コード例 #5
0
ファイル: ID3v2Builder.cs プロジェクト: elfen20/cave-media
 /// <summary>Adds a new frame.</summary>
 /// <param name="frame">The frame.</param>
 public void AddFrame(ID3v2Frame frame)
 {
     frames.Add(frame);
 }
コード例 #6
0
ファイル: ID3v2Reader.cs プロジェクト: CaveSystems/cave-media
        /// <summary>
        /// Reads a frame (check <see cref="State"/> before usage).
        /// </summary>
        /// <returns>Returns a frame if one left or null otherwise.</returns>
        public bool ReadFrame(out ID3v2Frame frame)
        {
            if (State != ID3v2ReaderState.ReadFrames)
            {
                throw new InvalidOperationException(string.Format("Cannot read frame at state {0}", State));
            }

            frame = null;
            if (m_Reader.BufferStartPosition >= m_BodyBytes)
            {
                if ((m_Header.Flags & ID3v2HeaderFlags.Footer) == 0)
                {
                    // no footer, end of tag
                    State = ID3v2ReaderState.ReadEnd;
                    return(true);
                }
                State = ID3v2ReaderState.ReadFooter;
                return(true);
            }

            if (m_Reader.ReadByte(0) == 0)
            {
                // check padding with zero bytes
                byte[] data;
                switch (m_Header.Version)
                {
                case 2:
                {
                    var read = m_BodyBytes - m_Reader.BufferStartPosition;
                    data  = m_Reader.GetBuffer((int)read);
                    State = ID3v2ReaderState.ReadEnd;
                    frame = null;
                    break;
                }

                case 3:
                case 4:
                {
                    // null frame, used by some encoders to implement padding, this is not allowed if footer present
                    if ((m_Header.Flags & ID3v2HeaderFlags.Footer) != 0)
                    {
                        throw new InvalidDataException(string.Format("Invalid padding frames inside of tag with footer!"));
                    }

                    // load padding bytes
                    var read = m_BodyBytes - m_Reader.BufferStartPosition;
                    data  = m_Reader.GetBuffer((int)read);
                    State = ID3v2ReaderState.ReadEnd;
                    frame = null;
                }
                break;

                default: return(false);
                }
                for (var i = 0; i < data.Length; i++)
                {
                    if (data[i] != 0)
                    {
                        Trace.TraceError("Additional garbage in padding of ID3v2 tag!");
                        break;
                    }
                }
                return(false);
            }

            try
            {
                frame = new ID3v2Frame(m_Header, m_Reader);
            }
            catch (Exception ex)
            {
                Trace.TraceError("Error parsing id3 frame.");
                Trace.TraceError(ex.ToString());
                return(false);
            }
            return(true);
        }