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Add option to not compress dicformat.

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Natalia Portillo
2018-02-02 15:34:48 +00:00
parent 094a381d88
commit 2e825e351e
1 changed files with 20 additions and 6 deletions
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26
DiscImageChef.DiscImages/DiscImageChef.cs
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@@ -190,6 +190,7 @@ namespace DiscImageChef.DiscImages
/// <summary>In-memory deduplication table</summary>
ulong[] userDataDdt;
bool writingLong;
bool nocompress;
public DiscImageChef()
{
@@ -1893,7 +1894,8 @@ namespace DiscImageChef.DiscImages
("sha256", typeof(bool), "Calculate and store SHA256 of image's user data"),
("spamsum", typeof(bool), "Calculate and store SpamSum of image's user data"),
("deduplicate", typeof(bool),
"Store only unique sectors. This consumes more memory and is slower, but it's enabled by default")
"Store only unique sectors. This consumes more memory and is slower, but it's enabled by default"),
("nocompress", typeof(bool), "Don't compress user data blocks. Other blocks will still be compressed")
};
public IEnumerable<string> KnownExtensions => new[] {".dicf"};
public bool IsWriting { get; private set; }
@@ -1991,6 +1993,16 @@ namespace DiscImageChef.DiscImages
}
}
else deduplicate = true;
if(options.TryGetValue("nocompress", out tmpValue))
{
if(!bool.TryParse(tmpValue, out nocompress))
{
ErrorMessage = "Invalid value for nocompress option";
return false;
}
}
else nocompress = false;
}
else
{
@@ -2002,6 +2014,7 @@ namespace DiscImageChef.DiscImages
doSha256 = false;
doSpamsum = false;
deduplicate = true;
nocompress = false;
}
// This really, cannot happen
@@ -2688,7 +2701,7 @@ namespace DiscImageChef.DiscImages
Array.Copy(blockStream.GetBuffer(), 0, buffer, 0, realLength);
blockStream = new MemoryStream(buffer);
}
else
else if(currentBlockHeader.compression == CompressionType.Lzma)
{
lzmaProperties = lzmaBlockStream.Properties;
lzmaBlockStream.Close();
@@ -2741,11 +2754,11 @@ namespace DiscImageChef.DiscImages
{
identifier = BlockType.DataBlock,
type = DataType.UserData,
compression = CompressionType.Lzma,
compression = nocompress ? CompressionType.None : CompressionType.Lzma,
sectorSize = (uint)data.Length
};
if(imageInfo.XmlMediaType == XmlMediaType.OpticalDisc && trk.TrackType == TrackType.Audio)
if(imageInfo.XmlMediaType == XmlMediaType.OpticalDisc && trk.TrackType == TrackType.Audio && !nocompress)
currentBlockHeader.compression = CompressionType.Flac;
blockStream = new MemoryStream();
@@ -2767,7 +2780,8 @@ namespace DiscImageChef.DiscImages
else
{
decompressedStream.Write(data, 0, data.Length);
lzmaBlockStream.Write(data, 0, data.Length);
if(currentBlockHeader.compression == CompressionType.Lzma)
lzmaBlockStream.Write(data, 0, data.Length);
}
SetDdtEntry(sectorAddress, ddtEntry);
@@ -3110,7 +3124,7 @@ namespace DiscImageChef.DiscImages
Array.Copy(blockStream.GetBuffer(), 0, buffer, 0, realLength);
blockStream = new MemoryStream(buffer);
}
else
else if(currentBlockHeader.compression == CompressionType.Lzma)
{
lzmaProperties = lzmaBlockStream.Properties;
lzmaBlockStream.Close();