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add additional means (#101)

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Noah Zoschke 2024-01-22 13:42:04 -08:00 committed by GitHub
parent 0253fc576d
commit 713ab0e946
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1 changed files with 9 additions and 2 deletions
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11
mp4.go
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@ -45,6 +45,12 @@ var atoms = atomNames(map[string]string{
"disk": "disc",
})
var means = map[string]bool{
"com.apple.iTunes": true,
"com.mixedinkey.mixedinkey": true,
"com.serato.dj": true,
}
// Detect PNG image if "implicit" class is used
var pngHeader = []byte{137, 80, 78, 71, 13, 10, 26, 10}
@ -226,7 +232,7 @@ func readAtomHeader(r io.ReadSeeker) (name string, size uint32, err error) {
// Generic atom.
// Should have 3 sub atoms : mean, name and data.
// We check that mean is "com.apple.iTunes" and we use the subname as
// We check that mean is "com.apple.iTunes" or others and we use the subname as
// the name, and move to the data atom.
// Data atom could have multiple data values, each with a header.
// If anything goes wrong, we jump at the end of the "----" atom.
@ -268,9 +274,10 @@ func readCustomAtom(r io.ReadSeeker, size uint32) (_ string, data []string, _ er
return "", nil, err
}
if subNames["mean"] != "com.apple.iTunes" || subNames["name"] == "" || len(data) == 0 {
if !means[subNames["mean"]] || subNames["name"] == "" || len(data) == 0 {
return "----", nil, nil
}
return subNames["name"], data, nil
}