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Merge pull request #347 from vansante/master

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Support more HEIF file types based on file magic signatures
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Tom 2020-08-04 12:39:10 +02:00 • committed by GitHub
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3 changed files with 18 additions and 2 deletions
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testdata/test3.heic vendored Normal file
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1
type_test.go
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@ -21,6 +21,7 @@ func TestDeterminateImageType(t *testing.T) {
// {"test.jp2", MAGICK}, // {"test.jp2", MAGICK},
{"test.heic", HEIF}, {"test.heic", HEIF},
{"test2.heic", HEIF}, {"test2.heic", HEIF},
{"test3.heic", HEIF},
} }
for _, file := range files { for _, file := range files {

19
vips.go
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@ -708,12 +708,27 @@ func vipsImageType(buf []byte) ImageType {
// https://github.com/strukturag/libheif/issues/83#issuecomment-421427091 // https://github.com/strukturag/libheif/issues/83#issuecomment-421427091
if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 && if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 &&
buf[8] == 0x68 && buf[9] == 0x65 && buf[10] == 0x69 && buf[11] == 0x63 { buf[8] == 0x68 && buf[9] == 0x65 && buf[10] == 0x69 && buf[11] == 0x63 {
// This is a HEIC file // This is a HEIC file, ftypheic
return HEIF return HEIF
} }
if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 && if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 &&
buf[8] == 0x6d && buf[9] == 0x69 && buf[10] == 0x66 && buf[11] == 0x31 { buf[8] == 0x6d && buf[9] == 0x69 && buf[10] == 0x66 && buf[11] == 0x31 {
// This is a HEIF file // This is a HEIF file, ftypmif1
return HEIF
}
if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 &&
buf[8] == 0x6d && buf[9] == 0x73 && buf[10] == 0x66 && buf[11] == 0x31 {
// This is a HEIFS file, ftypmsf1
return HEIF
}
if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 &&
buf[8] == 0x68 && buf[9] == 0x65 && buf[10] == 0x69 && buf[11] == 0x73 {
// This is a HEIFS file, ftypheis
return HEIF
}
if IsTypeSupported(HEIF) && buf[4] == 0x66 && buf[5] == 0x74 && buf[6] == 0x79 && buf[7] == 0x70 &&
buf[8] == 0x68 && buf[9] == 0x65 && buf[10] == 0x76 && buf[11] == 0x63 {
// This is a HEIFS file, ftyphevc
return HEIF return HEIF
} }