private Int32 writePictures(BinaryWriter w, IList <PictureInfo> pictures, Boolean isLast)
{
var result = 0;
Int64 sizePos, dataPos, finalPos;
Byte blockType;
foreach (var picture in pictures)
{
blockType = META_PICTURE;
if (isLast)
{
blockType = (Byte)(blockType & 0x80);
}
w.Write(blockType);
sizePos = w.BaseStream.Position;
w.Write(new Byte[] { 0, 0, 0 }); // Placeholder for 24-bit integer that will be rewritten at the end of the method
dataPos = w.BaseStream.Position;
vorbisTag.WritePicture(w, picture.PictureData, picture.NativeFormat, ImageUtils.GetMimeTypeFromImageFormat(picture.NativeFormat), picture.PicType.Equals(PictureInfo.PIC_TYPE.Unsupported) ? picture.NativePicCode : ID3v2.EncodeID3v2PictureType(picture.PicType), picture.Description);
finalPos = w.BaseStream.Position;
w.BaseStream.Seek(sizePos, SeekOrigin.Begin);
w.Write(StreamUtils.EncodeBEUInt24((UInt32)(finalPos - dataPos)));
w.BaseStream.Seek(finalPos, SeekOrigin.Begin);
result++;
}
return(result);
}
private Int32 writeVorbisTag(BinaryWriter w, TagData tag, Boolean isLast)
{
Int32 result;
Int64 sizePos, dataPos, finalPos;
var blockType = META_VORBIS_COMMENT;
if (isLast)
{
blockType = (Byte)(blockType & 0x80);
}
w.Write(blockType);
sizePos = w.BaseStream.Position;
w.Write(new Byte[] { 0, 0, 0 }); // Placeholder for 24-bit integer that will be rewritten at the end of the method
dataPos = w.BaseStream.Position;
result = vorbisTag.Write(w.BaseStream, tag);
finalPos = w.BaseStream.Position;
w.BaseStream.Seek(sizePos, SeekOrigin.Begin);
w.Write(StreamUtils.EncodeBEUInt24((UInt32)(finalPos - dataPos)));
w.BaseStream.Seek(finalPos, SeekOrigin.Begin);
return(result);
}
public void StreamUtils_BE24UintConverters()
{
uint intValue = 0x00873529;
Assert.AreEqual((uint)0x00FFFFFF, StreamUtils.DecodeBEUInt24(new byte[3] {
0xFF, 0xFF, 0xFF
}));
byte[] byteValue = StreamUtils.EncodeBEUInt24(intValue);
Assert.AreEqual(intValue, StreamUtils.DecodeBEUInt24(byteValue));
}
private WriteResult writeVorbisCommentBlock(BinaryWriter w, TagData tag)
{
long sizePos, dataPos, finalPos;
w.Write(META_VORBIS_COMMENT);
sizePos = w.BaseStream.Position;
w.Write(new byte[] { 0, 0, 0 }); // Placeholder for 24-bit integer that will be rewritten at the end of the method
dataPos = w.BaseStream.Position;
int writtenFields = vorbisTag.Write(w.BaseStream, tag);
finalPos = w.BaseStream.Position;
w.BaseStream.Seek(sizePos, SeekOrigin.Begin);
w.Write(StreamUtils.EncodeBEUInt24((uint)(finalPos - dataPos)));
w.BaseStream.Seek(finalPos, SeekOrigin.Begin);
return(new WriteResult(WriteMode.REPLACE, writtenFields));
}
private int writePictureBlock(BinaryWriter w, PictureInfo picture)
{
long sizePos, dataPos, finalPos;
w.Write(META_PICTURE);
sizePos = w.BaseStream.Position;
w.Write(new byte[] { 0, 0, 0 }); // Placeholder for 24-bit integer that will be rewritten at the end of the method
dataPos = w.BaseStream.Position;
vorbisTag.WritePicture(w, picture.PictureData, picture.NativeFormat, ImageUtils.GetMimeTypeFromImageFormat(picture.NativeFormat), picture.PicType.Equals(PictureInfo.PIC_TYPE.Unsupported) ? picture.NativePicCode : ID3v2.EncodeID3v2PictureType(picture.PicType), picture.Description);
finalPos = w.BaseStream.Position;
w.BaseStream.Seek(sizePos, SeekOrigin.Begin);
w.Write(StreamUtils.EncodeBEUInt24((uint)(finalPos - dataPos)));
w.BaseStream.Seek(finalPos, SeekOrigin.Begin);
return(1);
}
private WriteResult writePaddingBlock(BinaryWriter w, long cumulativeDelta)
{
long paddingSizeToWrite = TrackUtils.ComputePaddingSize(initialPaddingOffset, initialPaddingSize, -cumulativeDelta);
if (paddingSizeToWrite > 0)
{
w.Write(META_PADDING);
w.Write(StreamUtils.EncodeBEUInt24((uint)paddingSizeToWrite));
for (int i = 0; i < paddingSizeToWrite; i++)
{
w.Write((byte)0);
}
return(new WriteResult(WriteMode.REPLACE, 1));
}
else
{
return(new WriteResult(WriteMode.REPLACE, 0));
}
}
private int writePictures(BinaryWriter w, IList <PictureInfo> pictures, bool isLast)
{
int result = 0;
long sizePos, dataPos, finalPos;
byte blockType;
foreach (PictureInfo picture in pictures)
{
// Picture has either to be supported, or to come from the right tag standard
bool doWritePicture = !picture.PicType.Equals(PictureInfo.PIC_TYPE.Unsupported);
if (!doWritePicture)
{
doWritePicture = (MetaDataIOFactory.TAG_NATIVE == picture.TagType);
}
// It also has not to be marked for deletion
doWritePicture = doWritePicture && (!picture.MarkedForDeletion);
if (doWritePicture)
{
blockType = META_PICTURE;
if (isLast)
{
blockType = (byte)(blockType & 0x80);
}
w.Write(blockType);
sizePos = w.BaseStream.Position;
w.Write(new byte[] { 0, 0, 0 }); // Placeholder for 24-bit integer that will be rewritten at the end of the method
dataPos = w.BaseStream.Position;
vorbisTag.WritePicture(w, picture.PictureData, picture.NativeFormat, ImageUtils.GetMimeTypeFromImageFormat(picture.NativeFormat), picture.PicType.Equals(PictureInfo.PIC_TYPE.Unsupported) ? picture.NativePicCode : ID3v2.EncodeID3v2PictureType(picture.PicType), picture.Description);
finalPos = w.BaseStream.Position;
w.BaseStream.Seek(sizePos, SeekOrigin.Begin);
w.Write(StreamUtils.EncodeBEUInt24((uint)(finalPos - dataPos)));
w.BaseStream.Seek(finalPos, SeekOrigin.Begin);
result++;
}
}
return(result);
}
public void StreamUtils_Exceptions()
{
Assert.IsFalse(StreamUtils.ArrEqualsArr(new byte[1], new byte[2]));
Assert.IsFalse(StreamUtils.StringEqualsArr(".", new char[2]));
try
{
StreamUtils.DecodeBEUInt16(new byte[1]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeUInt16(new byte[1]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeInt16(new byte[1]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEInt16(new byte[1]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEInt24(new byte[2]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEUInt24(new byte[2]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.EncodeBEUInt24(0x01FFFFFF);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEUInt32(new byte[3]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeUInt32(new byte[3]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEInt32(new byte[3]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeInt32(new byte[3]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeUInt64(new byte[7]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeBEInt64(new byte[7]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeSynchSafeInt(new byte[6]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.DecodeSynchSafeInt32(new byte[6]);
Assert.Fail();
}
catch { }
try
{
StreamUtils.EncodeSynchSafeInt(1, 0);
Assert.Fail();
}
catch { }
try
{
StreamUtils.EncodeSynchSafeInt(1, 6);
Assert.Fail();
}
catch { }
try
{
StreamUtils.ReadBits(new BinaryReader(new MemoryStream()), 0, 0);
Assert.Fail();
}
catch { }
try
{
StreamUtils.ReadBits(new BinaryReader(new MemoryStream()), 0, 33);
Assert.Fail();
}
catch { }
}