50 lines
721 B
C++
50 lines
721 B
C++
#include "values.h"
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uint8_t ID3v2::Values::ValidHeaderMask(uint8_t version, uint8_t revision)
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{
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switch(version)
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{
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case 2:
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if (revision == 1)
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return 0xE0;
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else
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return 0xC0;
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case 4:
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return 0xF0; /* 11110000 */
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case 3:
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return 0xE0; /* 11100000 */
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default:
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return 0;
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}
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}
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bool ID3v2::Values::KnownVersion(uint8_t version, uint8_t revision)
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{
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if (version > Values::MAX_VERSION)
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return false;
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if (version < Values::MIN_VERSION)
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return false;
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return true;
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}
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uint8_t ID3v2::Values::ExtendedHeaderFlag(uint8_t version, uint8_t revision)
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{
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switch(version)
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{
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case 2:
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if (revision == 1)
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return (1 << 6);
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else
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return 0;
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case 3:
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case 4:
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return (1 << 6);
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default:
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return 0;
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}
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}
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