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30 lines
822 B
30 lines
822 B
diff --git a/taglib/ogg/flac/oggflacfile.cpp b/taglib/ogg/flac/oggflacfile.cpp
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index 3a36ebe..01148cc 100644
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--- a/taglib/ogg/flac/oggflacfile.cpp
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+++ b/taglib/ogg/flac/oggflacfile.cpp
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@@ -216,11 +216,22 @@ void Ogg::FLAC::File::scan()
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if(!metadataHeader.startsWith("fLaC")) {
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// FLAC 1.1.2+
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+
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+ // See https://xiph.org/flac/ogg_mapping.html for the header specification.
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+ if(metadataHeader.size() < 13)
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+ return;
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+
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+ if(metadataHeader[0] != 0x7f)
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+ return;
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+
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if(metadataHeader.mid(1, 4) != "FLAC")
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return;
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- if(metadataHeader[5] != 1)
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- return; // not version 1
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+ if(metadataHeader[5] != 1 && metadataHeader[6] != 0)
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+ return; // not version 1.0
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+
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+ if(metadataHeader.mid(9, 4) != "fLaC")
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+ return;
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metadataHeader = metadataHeader.mid(13);
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}
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