DFF playback

Bmp.Core/Playback/Inputs/DffSourceStream.cs

@@ -2,6 +2,7 @@
 using System.Runtime.InteropServices;
 using System.Text;
 using Bmp.Core.Common.Utility;
+using NAudio.Wave;
 using static System.Net.WebRequestMethods;
 using WaveFormat = NAudio.Wave.WaveFormat;
 
@@ -17,6 +18,9 @@ public class DffSourceStream : DsdAbstractSourceStream
     private const string ID_CMPR = "CMPR";
     private const string ID_DST = "DST ";
     private const string ID_LSCO = "LSCO";
+    private const string ID_PROP = "PROP";
+    private const string ID_DIIN = "DIIN";
+    private const string ID_MARK = "MARK";
 
 
     private const int FILE_VERSION = 0x01050000;
@@ -55,6 +59,11 @@ public class DffSourceStream : DsdAbstractSourceStream
     private readonly short _channelCount;
     private readonly IReadOnlyCollection<string> _channelIds;
     private readonly bool _isDstEncoded;
+    private readonly short _loudspeakerConfig;
+    private readonly long _dataOffset;
+    private readonly long _dataSize;
+
+    private long _position;
 
     public DffSourceStream(string urlOrPath) : this(InputSourceProvider.ReadContentAsSeekableStream(urlOrPath), true)
     {
@@ -86,58 +95,120 @@ public class DffSourceStream : DsdAbstractSourceStream
                     _fileVersion = _underlyingStream.ReadStruct<int>().NetworkOrderToHostOrder();
                     if (_fileVersion != FILE_VERSION) throw new InvalidDataException("invalid File version");
                     continue;
-            }
 
-            if (ck.Id == "PROP")
-            {
-                underlyingStream.ReadStruct(ref id);
-                if (id.Value != ID_SND) throw new InvalidDataException("invalid SND signature");
-                var id_prop_end = _underlyingStream.Position - sizeOfId + ck.DataSize;
-                while (_underlyingStream.Position < id_prop_end)
-                {
-                    underlyingStream.ReadStruct(ref ck);
-                    switch (ck.Id, ck.DataSize)
+                default:
+                    switch (ck.Id)
                     {
-                        case (ID_FS, 4):
-                            _sampleRate = _underlyingStream.ReadStruct<int>().NetworkOrderToHostOrder();
-                            break;
-                        case (ID_LSCO, 2):
-                            //_loudspeakerConfig
-                            break;
-                        default:
+                        case ID_PROP:
+                            underlyingStream.ReadStruct(ref id);
+                            if (id.Value != ID_SND) throw new InvalidDataException("invalid SND signature");
+                            var id_prop_end = _underlyingStream.Position - sizeOfId + ck.DataSize;
+                            while (_underlyingStream.Position < id_prop_end)
+                            {
+                                underlyingStream.ReadStruct(ref ck);
+                                switch (ck.Id, ck.DataSize)
+                                {
+                                    case (ID_FS, 4):
+                                        _sampleRate = _underlyingStream.ReadStruct<int>().NetworkOrderToHostOrder();
+                                        break;
+                                    case (ID_LSCO, 2):
+                                        _loudspeakerConfig = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+                                        break;
+                                    default:
+
+                                        switch (ck.Id)
+                                        {
+                                            case ID_CHNL:
+                                                _channelCount = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+                                                _channelIds = Enumerable.Range(0, _channelCount).Select(_ => _underlyingStream.ReadStruct<ID>().Value).ToArray();
+                                                break;
+                                            case ID_CMPR:
+                                                var compressionId = _underlyingStream.ReadStruct<ID>().Value;
+                                                _isDstEncoded = compressionId == ID_DST;
+                                                var len = _underlyingStream.ReadStruct<byte>();
+                                                var text = Encoding.UTF8.GetString(_underlyingStream.ReadBytes(len));
+                                                break;
+                                            default:
+                                                //skip unknown chunk
+                                                _underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
+                                                break;
+                                        }
+                                        break;
+
+                                }
 
-                            switch (ck.Id)
+                                //align: pad byte char with value 0, used for making chunks an even length. 
+                                _underlyingStream.Seek(_underlyingStream.Position % 2, SeekOrigin.Current);
+
+                            }
+                            break; //case ID_PROP:
+
+                        case ID_DIIN:
+                            var id_diin_end = _underlyingStream.Position - sizeOfId + ck.DataSize;
+                            while (_underlyingStream.Position < id_diin_end)
                             {
-                                case ID_CHNL:
-                                    _channelCount = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
-                                    _channelIds = Enumerable.Range(0, _channelCount).Select(_ => _underlyingStream.ReadStruct<ID>().Value).ToArray();
-                                    break;
-                                case ID_CMPR:
-                                    var compressionId = _underlyingStream.ReadStruct<ID>().Value;
-                                    _isDstEncoded = compressionId == ID_DST;
-                                    var len = _underlyingStream.ReadStruct<byte>();
-                                    var text = Encoding.UTF8.GetString(_underlyingStream.ReadBytes(len));
-                                    break;
-                                default:
-                                    _underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
-                                    break;
+                                underlyingStream.ReadStruct(ref ck);
+                                switch (ck.Id)
+                                {
+                                    case ID_MARK:
+                                        var hours = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+                                        var minutes = _underlyingStream.ReadStruct<byte>();
+                                        var second = _underlyingStream.ReadStruct<byte>();
+                                        var samples = _underlyingStream.ReadStruct<uint>().NetworkOrderToHostOrder();
+                                        var offset = _underlyingStream.ReadStruct<int>().NetworkOrderToHostOrder();
+
+                                        // 0 TrackStart 
+                                        // 1 TrackStop 
+                                        // 2 ProgramStart 
+                                        // 4 Index  Entry point of an Index
+                                        var type = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+
+                                        // 0 All channels
+                                        var channel = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+
+                                        var trackFlags = _underlyingStream.ReadStruct<short>().NetworkOrderToHostOrder();
+
+                                        var textLen = _underlyingStream.ReadStruct<int>().NetworkOrderToHostOrder();
+                                        var text = Encoding.UTF8.GetString(_underlyingStream.ReadBytes(textLen));
+                                        break;
+
+                                    default:
+                                        //skip unknown chunk
+                                        _underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
+                                        break;
+                                }
+
+                                _underlyingStream.Seek(_underlyingStream.Position % 2, SeekOrigin.Current);
+
                             }
-                            break;
 
+                            break; // case ID_DIIN:
+
+                        case ID_DSD:
+                            _dataOffset = _underlyingStream.Position;
+                            _dataSize = ck.DataSize;
+                            _underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
+                            continue;
+
+                        default:
+                            //skip unknown chunk
+                            underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
+                            break;
                     }
 
-                    //pad byte char with value 0, used for making chunks an even length. 
-                    _underlyingStream.Seek(_underlyingStream.Position % 2, SeekOrigin.Current);
+                    break;
+            }
 
-                }
+            //align: pad byte char with value 0, used for making chunks an even length. 
+            _underlyingStream.Seek(_underlyingStream.Position % 2, SeekOrigin.Current);
 
+            if (_isDstEncoded) throw new NotSupportedException("DST is not support");
 
-                continue;
-            }
+            WaveFormat = WaveFormat.CreateCustomFormat(WaveFormatEncoding.Unknown, _sampleRate, _channelCount, _sampleRate / 8 * _channelCount, _channelCount, 1);
 
-            //skip unknown chunk
-            underlyingStream.Seek(ck.DataSize, SeekOrigin.Current);
         }
+
+        _underlyingStream.Position = _dataOffset;
     }
 
     protected override void Dispose(bool disposing)
@@ -146,12 +217,60 @@ public class DffSourceStream : DsdAbstractSourceStream
         if (_disposeStream) _underlyingStream.Dispose();
     }
 
-    public override int Read(byte[] buffer, int offset, int count)
+    public override int Read(byte[] buffer, int offset, int countRequired)
     {
-        throw new NotImplementedException();
+        var mod = countRequired % _channelCount;
+        var count = countRequired;
+        if (mod != 0) count -= mod;
+
+        var read = _underlyingStream.Read(buffer, offset, count);
+        
+        // MSB / LSB Convert?
+        for (var i = 0; i < read; i++) buffer[i] = BitReverseTable[buffer[i]];
+
+        return read;
     }
 
+
+
     public override WaveFormat WaveFormat { get; }
-    public override long Length { get; }
-    public override long Position { get; set; }
+    public override long Length => _dataSize;
+    public override long Position { get => _underlyingStream.Position - _dataOffset; set => _underlyingStream.Position = _dataOffset + value - value % _channelCount; }
+
+    public static byte[] BitReverseTable =
+    {
+        0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+        0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+        0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+        0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+        0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+        0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+        0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+        0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+        0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+        0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+        0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+        0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+        0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+        0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+        0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+        0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+        0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+        0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+        0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+        0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+        0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+        0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+        0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+        0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+        0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+        0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+        0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+        0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+        0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+        0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+        0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+        0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+    };
+
 }

Bmp.Core/Playback/Inputs/DsfSourceStream.cs

@@ -212,16 +212,7 @@ public class DsfSourceStream : DsdAbstractSourceStream
         if (_disposeStream) _underlyingStream.Dispose();
     }
 
-    public override bool CanRead => true;
-    public override bool CanSeek => true;
+  
 
-    // -------------- unused stubs --------------
-
-    public override void SetLength(long value) => throw new NotSupportedException();
-
-    public override void Flush() => throw new NotSupportedException();
-
-    public override void Write(byte[] buffer, int offset, int count) => throw new NotSupportedException();
-
-    public override bool CanWrite => false;
+  
 }

Bmp.Core/Playback/Inputs/InputSourceProvider.cs

@@ -9,21 +9,24 @@ namespace Bmp.Core.Playback.Inputs
 {
     public static class InputSourceProvider
     {
-        public static readonly IReadOnlyList<string> CoverFilePaths = new List<string>
+        private static readonly IReadOnlyList<string> CoverFilePaths = new List<string>
         {
             "./Cover.jpg",
+            "./Folder.jpg",
             "BK/Cover.jpg",
             "PIC/Cover.jpg",
             "PICS/Cover.jpg",
             "SCAN/Cover.jpg",
             "SCANS/Cover.jpg",
             "./Cover.webp",
+            "./Folder.webp",
             "BK/Cover.webp",
             "PIC/Cover.webp",
             "PICS/Cover.webp",
             "SCAN/Cover.webp",
             "SCANS/Cover.webp",
             "./Cover.png",
+            "./Folder.png",
             "BK/Cover.png",
             "PIC/Cover.png",
             "PICS/Cover.png",
@@ -33,11 +36,21 @@ namespace Bmp.Core.Playback.Inputs
 
         public static AttachedPic[] GetPics(string urlOrPath)
         {
-            using var decoder = new FfmpegDecoder(urlOrPath);
+            AttachedPic[]? mappedEmbeddedPics = null;
+            try
+            {
+                using var decoder = new FfmpegDecoder(urlOrPath);
 
-            var fp = decoder.AttachedPics;
+                var fp = decoder.AttachedPics;
 
-            var mappedEmbeddedPics = fp?.Select(p => new AttachedPic { Tags = p.Meta, Data = p.Data.ToArray() }).ToArray();
+                mappedEmbeddedPics = fp?.Select(p => new AttachedPic { Tags = p.Meta, Data = p.Data.ToArray() }).ToArray();
+
+            }
+            catch (Exception e)
+            {
+                //TODO: EventBus?
+                Console.WriteLine(e);
+            }
 
             if (mappedEmbeddedPics?.Length > 1 == false)
             {