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Detect zstd compressed files

This commit is contained in:
Martchus 2023-03-05 22:37:14 +01:00
parent 21edf75047
commit 7d9d5c8408
2 changed files with 10 additions and 0 deletions
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9
signature.cpp
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@ -72,6 +72,7 @@ enum Sig32 : std::uint32_t {
Zip1 = 0x504B0304u, Zip1 = 0x504B0304u,
Zip2 = 0x504B0506u, Zip2 = 0x504B0506u,
Zip3 = 0x504B0708u, Zip3 = 0x504B0708u,
Zstd = 0x28b52ffdu,
}; };
/*! /*!
@ -213,6 +214,8 @@ ContainerFormat parseSignature(std::string_view buffer)
case Zip2: case Zip2:
case Zip3: case Zip3:
return ContainerFormat::Zip; return ContainerFormat::Zip;
case Zstd:
return ContainerFormat::Zstd;
default:; default:;
} }
switch (sig >> 40) { // check 24-bit signatures switch (sig >> 40) { // check 24-bit signatures
@ -374,6 +377,8 @@ std::string_view containerFormatAbbreviation(ContainerFormat containerFormat, Me
return "mid"; return "mid";
case ContainerFormat::Aiff: case ContainerFormat::Aiff:
return "aiff"; return "aiff";
case ContainerFormat::Zstd:
return "zst";
default: default:
return ""; return "";
} }
@ -481,6 +486,8 @@ std::string_view containerFormatName(ContainerFormat containerFormat)
return "MIDI"; return "MIDI";
case ContainerFormat::Aiff: case ContainerFormat::Aiff:
return "Audio Interchange File Format"; return "Audio Interchange File Format";
case ContainerFormat::Zstd:
return "Zstandard compressed file";
default: default:
return "unknown"; return "unknown";
} }
@ -577,6 +584,8 @@ std::string_view containerMimeType(ContainerFormat containerFormat, MediaType me
return "image/bmp"; return "image/bmp";
case ContainerFormat::WindowsIcon: case ContainerFormat::WindowsIcon:
return "image/vnd.microsoft.icon"; return "image/vnd.microsoft.icon";
case ContainerFormat::Zstd:
return "application/zstd";
default: default:
return ""; return "";
} }

1
signature.h
View File

@ -66,6 +66,7 @@ enum class ContainerFormat : unsigned int {
YUV4Mpeg2, /**< YUV4MPEG2 */ YUV4Mpeg2, /**< YUV4MPEG2 */
Zip, /**< ZIP archive */ Zip, /**< ZIP archive */
Aiff, /**< Audio Interchange File Format */ Aiff, /**< Audio Interchange File Format */
Zstd, /**< Zstandard-compressed data */
}; };
TAG_PARSER_EXPORT ContainerFormat parseSignature(const char *buffer, std::size_t bufferSize); TAG_PARSER_EXPORT ContainerFormat parseSignature(const char *buffer, std::size_t bufferSize);