MP3: Reduce IDv3 scan buffer array copying and limit reading to up to 3 IDv3 blocks#120
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MP3: Reduce IDv3 scan buffer array copying and limit reading to up to 3 IDv3 blocks#120
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Reduces array copying whilst scanning for IDv3 blocks within an MP3 frame, instead reading directly to a temporary buffer and then copying the result once into a tag header buffer.
Also restricts reading to up to 3 IDv3 blocks before considering a file as possibly invalid. Ideally, MP3 files should only contain a single IDv3 block anyway.