! Copyright (C) 2009 Tim Wawrzynczak, Doug Coleman.
-! See http://factorcode.org/license.txt for BSD license.
-USING: sequences io io.encodings.binary io.files io.pathnames
-strings kernel math io.mmap io.mmap.uchar accessors syntax
-combinators math.ranges unicode.categories byte-arrays
-io.encodings.string io.encodings.utf16 assocs math.parser
-combinators.short-circuit fry namespaces combinators.smart
-splitting io.encodings.ascii arrays io.files.info unicode.case
-io.directories.search literals math.functions continuations ;
+! See https://factorcode.org/license.txt for BSD license.
+USING: accessors arrays assocs byte-arrays
+combinators combinators.short-circuit combinators.smart
+continuations io.directories io.encodings.ascii
+io.encodings.string io.encodings.utf16 io.mmap kernel math
+math.functions math.parser sequences splitting unicode ;
+FROM: alien.c-types => uchar ;
IN: id3
<PRIVATE
CONSTANT: genres
{
- "Blues" "Classic Rock" "Country" "Dance" "Disco" "Funk"
- "Grunge" "Hip-Hop" "Jazz" "Metal" "New Age" "Oldies" "Other"
- "Pop" "R&B" "Rap" "Reggae" "Rock" "Techno" "Industrial"
- "Alternative" "Ska" "Death Metal" "Pranks" "Soundtrack"
- "Euro-Techno" "Ambient" "Trip-Hop" "Vocal" "Jazz+Funk"
- "Fusion" "Trance" "Classical" "Instrumental" "Acid" "House"
- "Game" "Sound Clip" "Gospel" "Noise" "AlternRock" "Bass"
- "Soul" "Punk" "Space" "Meditative" "Instrumental Pop"
- "Instrumental Rock" "Ethnic" "Gothic" "Darkwave"
- "Techno-Industrial" "Electronic" "Pop-Folk" "Eurodance"
- "Dream" "Southern Rock" "Comedy" "Cult" "Gangsta" "Top 40"
- "Christian Rap" "Pop/Funk" "Jungle" "Native American"
- "Cabaret" "New Wave" "Psychedelic" "Rave" "Showtunes"
- "Trailer" "Lo-Fi" "Tribal" "Acid Punk" "Acid Jazz" "Polka"
- "Retro" "Musical" "Rock & Roll" "Hard Rock" "Folk"
- "Folk-Rock" "National Folk" "Swing" "Fast Fusion" "Bebop"
- "Latin" "Revival" "Celtic" "Bluegrass" "Avantgarde"
- "Gothic Rock" "Progressive Rock" "Psychedelic Rock"
- "Symphonic Rock" "Slow Rock" "Big Band" "Chorus"
- "Easy Listening" "Acoustic" "Humour" "Speech" "Chanson"
- "Opera" "Chamber Music" "Sonata" "Symphony" "Booty Bass"
- "Primus" "Porn Groove" "Satire" "Slow Jam" "Club" "Tango"
- "Samba" "Folklore" "Ballad" "Power Ballad" "Rhythmic Soul"
- "Freestyle" "Duet" "Punk Rock" "Drum Solo" "A capella"
+ "Blues" "Classic Rock" "Country" "Dance" "Disco" "Funk"
+ "Grunge" "Hip-Hop" "Jazz" "Metal" "New Age" "Oldies" "Other"
+ "Pop" "R&B" "Rap" "Reggae" "Rock" "Techno" "Industrial"
+ "Alternative" "Ska" "Death Metal" "Pranks" "Soundtrack"
+ "Euro-Techno" "Ambient" "Trip-Hop" "Vocal" "Jazz+Funk"
+ "Fusion" "Trance" "Classical" "Instrumental" "Acid" "House"
+ "Game" "Sound Clip" "Gospel" "Noise" "AlternRock" "Bass"
+ "Soul" "Punk" "Space" "Meditative" "Instrumental Pop"
+ "Instrumental Rock" "Ethnic" "Gothic" "Darkwave"
+ "Techno-Industrial" "Electronic" "Pop-Folk" "Eurodance"
+ "Dream" "Southern Rock" "Comedy" "Cult" "Gangsta" "Top 40"
+ "Christian Rap" "Pop/Funk" "Jungle" "Native American"
+ "Cabaret" "New Wave" "Psychedelic" "Rave" "Showtunes"
+ "Trailer" "Lo-Fi" "Tribal" "Acid Punk" "Acid Jazz" "Polka"
+ "Retro" "Musical" "Rock & Roll" "Hard Rock" "Folk"
+ "Folk-Rock" "National Folk" "Swing" "Fast Fusion" "Bebop"
+ "Latin" "Revival" "Celtic" "Bluegrass" "Avantgarde"
+ "Gothic Rock" "Progressive Rock" "Psychedelic Rock"
+ "Symphonic Rock" "Slow Rock" "Big Band" "Chorus"
+ "Easy Listening" "Acoustic" "Humour" "Speech" "Chanson"
+ "Opera" "Chamber Music" "Sonata" "Symphony" "Booty Bass"
+ "Primus" "Porn Groove" "Satire" "Slow Jam" "Club" "Tango"
+ "Samba" "Folklore" "Ballad" "Power Ballad" "Rhythmic Soul"
+ "Freestyle" "Duet" "Punk Rock" "Drum Solo" "A capella"
"Euro-House" "Dance Hall" "Goa" "Drum & Bass" "Club-House"
"Hardcore" "Terror" "Indie" "BritPop" "Negerpunk"
"Polsk Punk" "Beat" "Christian Gangsta Rap" "Heavy Metal"
CONSTANT: id3v1-length 128
CONSTANT: id3v1-offset 128
CONSTANT: id3v1+-length 227
-CONSTANT: id3v1+-offset $[ 128 227 + ]
+: id3v1+-offset ( -- n ) id3v1-length id3v1+-length + ; inline
: id3v1? ( seq -- ? )
{
} cleave
] output>array sift ;
-: seq>synchsafe ( seq -- n )
+: sequence>synchsafe ( seq -- n )
0 [ [ 7 shift ] dip bitor ] reduce ;
-: synchsafe>seq ( n -- seq )
- dup 1+ log2 1+ 7 / ceiling
- [ [ -7 shift ] keep HEX: 7f bitand ] replicate nip reverse ;
+: synchsafe>sequence ( n -- seq )
+ dup 1 + log2 1 + 7 / ceiling
+ [ [ -7 shift ] keep 0x7f bitand ] replicate nip reverse ;
: filter-text-data ( data -- filtered )
[ printable? ] filter ;
[ 10 over size>> 10 + ] dip <slice> filter-text-data ;
: decode-text ( string -- string' )
- dup 2 short head
- { { HEX: ff HEX: fe } { HEX: fe HEX: ff } } member?
+ dup 2 index-or-length head
+ { { 0xff 0xfe } { 0xfe 0xff } } member?
utf16 ascii ? decode ;
: (read-frame) ( seq -- frame )
[ <frame> ] dip
{
[ 4 head-slice decode-text >>tag ]
- [ [ 4 8 ] dip subseq seq>synchsafe >>size ]
+ [ [ 4 8 ] dip subseq sequence>synchsafe >>size ]
[ [ 8 10 ] dip subseq >byte-array >>flags ]
[ read-frame-data decode-text >>data ]
} cleave ;
: read-frames ( seq -- assoc )
[ dup read-frame dup ] [ [ remove-frame ] keep ] produce 2nip ;
-
+
: read-v2-header ( seq -- header )
[ <header> ] dip
{
[ [ 3 5 ] dip <slice> >array >>version ]
[ [ 5 ] dip nth >>flags ]
- [ [ 6 10 ] dip <slice> seq>synchsafe >>size ]
+ [ [ 6 10 ] dip <slice> sequence>synchsafe >>size ]
} cleave ;
: merge-frames ( id3 assoc -- id3 )
- [ dup frames>> ] dip update ;
+ [ dup frames>> ] dip assoc-union! drop ;
: merge-id3v1 ( id3 -- id3 )
dup id3v1>frames frames>assoc merge-frames ;
10 cut-slice
[ read-v2-header >>header ]
[ read-frames frames>assoc merge-frames ] bi* ;
-
+
: extract-v1-tags ( id3 seq -- id3 )
{
[ 30 head-slice decode-text filter-text-data >>title ]
: mp3>id3 ( path -- id3/f )
[
- [ <id3> ] dip
- {
- [ dup id3v1? [ read-v1-tags merge-id3v1 ] [ drop ] if ]
- [ dup id3v1+? [ read-v1+-tags merge-id3v1 ] [ drop ] if ]
- [ dup id3v2? [ read-v2-tags ] [ drop ] if ]
- } cleave
- ] with-mapped-uchar-file-reader ;
+ [ <id3> ] dip uchar <mapped-array>
+ [ dup id3v1? [ read-v1-tags merge-id3v1 ] [ drop ] if ]
+ [ dup id3v1+? [ read-v1+-tags merge-id3v1 ] [ drop ] if ]
+ [ dup id3v2? [ read-v2-tags ] [ drop ] if ]
+ tri
+ ] with-mapped-file-reader ;
: find-id3-frame ( id3 name -- obj/f )
swap frames>> at* [ data>> ] when ;
: genre ( id3 -- string/f )
"TCON" find-id3-frame parse-genre ;
-: find-mp3s ( path -- seq ) ".mp3" find-by-extension ;
+: find-mp3s ( path -- seq ) ".mp3" find-files-by-extension ;
ERROR: id3-parse-error path error ;
projects / factor.git / blobdiff