private static void TestTagUtilsTestCloneUsingRaw()
{
ID3.Tag tag = TestTags.CreateDemoTag(Version.v2_3);
byte[] b0 = TagUtils.TagToRaw(tag);
byte[] b1 = TagUtils.TagToRaw(tag.Clone());
UnitTest.Test(ArrayUtils.IsEqual(b0, b1));
}
public static long OffsetToMpegHeader(FileInfo file)
{
long tagSize = TagUtils.TagSizeV2(file);
using (Stream s = VirtualDrive.OpenInStream(file.FullName))
{
s.Seek(tagSize, SeekOrigin.Begin);
return(tagSize + TagUtils.OffsetToFirstMpegHeader(s));
}
}
private static void TestTagUtilsWriteRawBiggerExact()
{
string fileName = VirtualDrive.VirtualFileName("TestTagUtilsWriteRawBiggerExact\\t1.mp3");
TestTags.WriteDemoMp3(fileName, TestTags.demoTag2_3);
FileInfo fileInfo = new FileInfo(fileName);
TagUtils.WriteTagV2(TestTags.demoTag2_4, fileInfo, Rewriter.Strategy.Exact);
UnitTest.Test(VirtualDrive.FileLength(fileName) == TestTags.demoTag2_4.Length + TestTags.mpegDummy.Length);
TagUtils.StripTagV2(fileInfo, 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private static void TestTagUtilsWriteRawSmallerNeverShrink()
{
string fileName = VirtualDrive.VirtualFileName("TestTagUtilsWriteRawSmallerNeverShrink\\t1.mp3");
TestTags.WriteDemoMp3(fileName, TestTags.demoTag2_4);
FileInfo fileInfo = new FileInfo(fileName);
TagUtils.WriteTagV2(TestTags.demoTag2_3, fileInfo, Rewriter.Strategy.NeverShrink);
UnitTest.Test(TagUtils.TagSizeV2(fileInfo) == TestTags.demoTag2_4.Length);
TagUtils.StripTagV2(fileInfo, 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private static void TestTagUtilsWriteRawSmallerQuantizeAbove()
{
string fileName = VirtualDrive.VirtualFileName("TestTagUtilsWriteRawSmallerQuantizeAbove\\t1.mp3");
TestTags.WriteDemoMp3(fileName, TestTags.demoTag2_4);
FileInfo fileInfo = new FileInfo(fileName);
TagUtils.WriteTagV2(TestTags.demoTag2_3, fileInfo, Rewriter.Strategy.Quantize);
UnitTest.Test(TagUtils.TagSizeV2(new FileInfo(fileName)) % Rewriter.BlockSize == 0);
TagUtils.StripTagV2(new FileInfo(fileName), 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private static void TestSetTagSizeRawV2()
{
int inc = 10;
byte[] raw0 = (byte[])TestTags.demoTag2_3.Clone();
int size0 = TagUtils.TagSize(raw0);
int size1 = size0 + inc;
byte[] raw1 = TagUtils.RecreateTagWithNewTagSize(raw0, size1);
UnitTest.Test(raw1.Length == raw0.Length + inc);
UnitTest.Test(TagUtils.TagSize(raw1) == size1);
}
public int Rewrite(int bytesRequired, FileInfo file)
{
int padding = CalculatePadding(bytesRequired, file);
if (padding < bytesRequired)
{
throw new Exception("CalculatePadding failed! Padding too small!");
}
if (TagUtils.TagSizeV2(file) != padding)
{
TagUtils.StripTagV2(file, padding);
}
return(padding);
}
public static void CreateDemoTags(string path, int count, Action <TagEditor> action)
{
for (int i = 0; i < count; ++i)
{
Tag tag = TestTags.CreateDemoTag(ID3.Version.v2_3);
TagEditor editor = new TagEditor(tag);
editor.Title = "Song No. " + (i + 1);
editor.TrackNumber = (i + 1).ToString();
editor.ReleaseYear = "1993";
action(editor);
TagUtils.WriteTag(tag, new FileInfo(Path.Combine(path, "Test" + i + ".mp3")));
}
}
private static void TestTagUtilsWriteTagBiggerQuantize()
{
string fileName = VirtualDrive.VirtualFileName("TestTagUtilsWriteTagBiggerQuantize\\t1.mp3");
TestTags.WriteDemoMp3(fileName, TestTags.demoTag2_3);
FileInfo fileInfo = new FileInfo(fileName);
Tag tag = TagUtils.ReadTag(fileInfo);
Frame f = new Frame(tag.DescriptionMap, "MCDI");
(f.Content as FrameContentBinary).Content = new byte[1024];
tag.Add(f);
TagUtils.WriteTagV2(tag, fileInfo, Rewriter.Strategy.Quantize);
UnitTest.Test(VirtualDrive.FileLength(fileName) == 2048 + TestTags.mpegDummy.Length);
TagUtils.StripTagV2(fileInfo, 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private static void TestTagUtilsReadWriteRaw()
{
int counter = 0;
foreach (var demoTag in TestTags.Demotags)
{
FileInfo fileInfo = VirtualDrive.CreateVirtualFileInfo(
"TestTagUtilsReadWriteRaw\\" + counter + ".tag");
TagUtils.WriteTag(demoTag, fileInfo);
byte[] tagRaw = TagUtils.ReadTagRaw(fileInfo);
UnitTest.Test(ArrayUtils.IsEqual(tagRaw, demoTag));
counter++;
}
}
private static void TestTagUtilsBuildByCodeAndSerializeInVirtualStore()
{
foreach (ID3.Version version in ID3.Version.Versions)
{
string filename = VirtualDrive.VirtualFileName(
"TestID3TagBuildByCodeAndSerializeInVirtualStore\\" + version.ToString() + ".tag");
Tag tag0 = TestTags.CreateDemoTag(version);
TagUtils.WriteTag(tag0, new FileInfo(filename));
Tag tag1 = TagUtils.ReadTag(new FileInfo(filename));
TagEditor editor0 = new TagEditor(tag0);
TagEditor editor1 = new TagEditor(tag1);
UnitTest.Test(editor1.Equals(editor0));
}
}
public static long OffsetTagToMpegHeader(FileInfo file)
{
long tagSize = TagUtils.TagSizeV2(file);
using (Stream s = VirtualDrive.OpenInStream(file.FullName))
{
s.Seek(tagSize, SeekOrigin.Begin);
long offset = TagUtils.OffsetToFirstMpegHeader(s);
if (offset > 0)
{
Logger.WriteLine(Tokens.Warning, "Tag V2 has wrong size. Offset to MPEG header: " + offset
+ " in file " + file.FullName);
}
return(offset);
}
}
private static void TestTagUtilsWriteTagSmallerExact()
{
Tag tag = TagUtils.RawToTag(TestTags.demoTag2_3);
Frame f = new Frame(tag.DescriptionMap, "MCDI");
(f.Content as FrameContentBinary).Content = new byte[1024];
tag.Add(f);
string fileName = VirtualDrive.VirtualFileName("TestTagUtilsWriteTagSmallerExact\\t1.mp3");
TestTags.WriteDemoMp3(fileName, TagUtils.TagToRaw(tag));
tag.Remove(f);
FileInfo fileInfo = new FileInfo(fileName);
TagUtils.WriteTagV2(tag, fileInfo, Rewriter.Strategy.Exact);
UnitTest.Test(VirtualDrive.FileLength(fileName) == TagUtils.TagToRaw(tag).Length + TestTags.mpegDummy.Length);
TagUtils.StripTagV2(fileInfo, 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private static void TestTagUtilsRewrite()
{
byte[] data = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
string fileName = VirtualDrive.VirtualFileName("TestID3TagUtilsRewrite\\t0.mp3");
Id3FileUtils.SaveFileBinary(fileName, data);
TagUtils.Rewrite(new FileInfo(fileName), 4, 3, 2, 1);
Stream s = VirtualDrive.OpenInStream(fileName);
UnitTest.Test(s.ReadByte() == 0);
UnitTest.Test(s.ReadByte() == 0);
UnitTest.Test(s.ReadByte() == 4);
UnitTest.Test(s.ReadByte() == 5);
UnitTest.Test(s.ReadByte() == 6);
UnitTest.Test(s.ReadByte() == 7);
UnitTest.Test(s.ReadByte() == 8);
UnitTest.Test(s.ReadByte() == 0);
UnitTest.Test(s.ReadByte() == -1);
s.Close();
}
private static void TestTagUtilsReadWrite()
{
int counter = 0;
foreach (var demoTag in TestTags.Demotags)
{
FileInfo fileInfo = VirtualDrive.CreateVirtualFileInfo(
"TestTagUtilsReadWrite\\" + counter + ".tag");
TagUtils.WriteTag(demoTag, fileInfo);
Tag tag0 = TagUtils.ReadTag(fileInfo);
UnitTest.Test(TestTags.IsDemoTag(new TagEditor(tag0)));
TagUtils.WriteTag(tag0, fileInfo);
UnitTest.Test(ArrayUtils.IsEqual(TagUtils.ReadTagRaw(fileInfo), demoTag));
counter++;
}
}
private static void TestTagUtilsRewriteMP3()
{
byte[] tag20 = TagUtils.TagToRaw(TestTags.CreateDemoTag(Version.v2_3));
byte[] tag10 = TestTags.demoTag1_0;
string fileName = VirtualDrive.VirtualFileName("TestID3TagUtilsRewrite\\t1.mp3");
using (Stream s = VirtualDrive.OpenOutStream(fileName))
{
s.Write(tag20, 0, tag20.Length);
s.WriteByte(0);
s.WriteByte(0);
s.Write(TestTags.mpegDummy, 0, TestTags.mpegDummy.Length);
s.Write(tag10, 0, tag10.Length);
}
long offset = TagUtils.OffsetTagToMpegHeader(new FileInfo(fileName));
UnitTest.Test(offset == 2);
TagUtils.StripTags(new FileInfo(fileName), 0, 0);
UnitTest.Test(ArrayUtils.IsEqual(VirtualDrive.Load(fileName), TestTags.mpegDummy));
}
private int CalculatePadding(int bytesRequired, FileInfo file)
{
int padding = 0;
switch (CurrentStrategy)
{
case Strategy.Exact:
padding = bytesRequired;
break;
case Strategy.NeverShrink:
padding = Math.Max(bytesRequired, TagUtils.TagSizeV2(file));
break;
case Strategy.Quantize:
padding = CeilBlockSize(bytesRequired);
break;
default:
throw new Exception("Unknown write strategy");
}
return(padding);
}