reorg
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@ -1,8 +1,8 @@
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! Copyright (C) 2020 .
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! Copyright (C) 2020 .
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! See http://factorcode.org/license.txt for BSD license.
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! See http://factorcode.org/license.txt for BSD license.
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USING: alien.syntax math io.encodings.binary kernel io io.files locals endian bit-arrays math.intervals combinators math.order sequences io.streams.peek io.binary namespaces accessors byte-arrays ;
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USING: math io.encodings.binary kernel io io.files locals endian bit-arrays math.intervals combinators math.order sequences io.streams.peek io.binary namespaces accessors byte-arrays ;
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USING: prettyprint ;
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USING: prettyprint ;
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USING: flac.metadata.private flac.metadata ;
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USING: flac.metadata.private flac.metadata flac.format ;
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QUALIFIED: bitstreams
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QUALIFIED: bitstreams
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@ -19,72 +19,6 @@ ERROR: invalid-sample-rate ;
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ERROR: invalid-subframe-type ;
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ERROR: invalid-subframe-type ;
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ERROR: invalid-subframe-sync ;
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ERROR: invalid-subframe-sync ;
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ENUM: flac-channel-assignment
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channels-mono
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channels-left/right
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channels-left/right/center
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channels-left/right/left-surround/right-surround
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channels-left/right/center/left-surround/right-surround
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channels-left/right/center/lfe/left-surround/right-surround
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channels-left/right/center/lfe/center-surround/side-left/side-right
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channels-left/right/center/lfe/left-surround/right-surround/side-left/side-right
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channels-left
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channels-right
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channels-mid ;
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ENUM: flac-frame-number-type
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frame-number-type-frame
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frame-number-type-sample ;
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ENUM: flac-subframe-type
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subframe-type-constant
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subframe-type-verbatim
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subframe-type-fixed
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subframe-type-lpc ;
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ENUM: flac-entropy-coding-method
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entropy-coding-partioned-rice
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entropy-coding-partioned-rice2 ;
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TUPLE: flac-subframe-header
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{ subframe-type maybe{ subframe-type-constant
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subframe-type-verbatim
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subframe-type-fixed
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subframe-type-lpc } }
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{ wasted-bits integer } ;
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TUPLE: flac-subframe
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{ subframe-header flac-subframe-header }
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{ data byte-array } ;
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TUPLE: flac-frame-header
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{ number-type maybe{ frame-number-type-frame frame-number-type-sample } }
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{ blocksize integer }
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{ sample-rate integer }
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{ channels integer }
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{ channel-assignment maybe{ channels-mono
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channels-left/right
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channels-left/right/center
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channels-left/right/left-surround/right-surround
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channels-left/right/center/left-surround/right-surround
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channels-left/right/center/lfe/left-surround/right-surround
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channels-left/right/center/lfe/center-surround/side-left/side-right
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channels-left/right/center/lfe/left-surround/right-surround/side-left/side-right
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channels-left
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channels-right
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channels-mid } }
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{ bits-per-sample integer }
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{ frame|sample-number integer }
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{ crc integer } ;
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TUPLE: flac-frame-footer
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{ crc integer } ;
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TUPLE: flac-frame
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{ header flac-frame-header }
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{ subframes sequence }
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{ footer flac-frame-footer } ;
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: 0xxxxxxx? ( n -- ? ) 0x80 bitand 0x80 = not ;
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: 0xxxxxxx? ( n -- ? ) 0x80 bitand 0x80 = not ;
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: 110xxxxx? ( n -- ? ) dup [ 0xc0 bitand 0xc0 = ] [ 0x20 bitand 0x20 = not ] bi* and ;
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: 110xxxxx? ( n -- ? ) dup [ 0xc0 bitand 0xc0 = ] [ 0x20 bitand 0x20 = not ] bi* and ;
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: 1110xxxx? ( n -- ? ) dup [ 0xe0 bitand 0xe0 = ] [ 0x10 bitand 0x10 = not ] bi* and ;
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: 1110xxxx? ( n -- ? ) dup [ 0xe0 bitand 0xe0 = ] [ 0x10 bitand 0x10 = not ] bi* and ;
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@ -0,0 +1,72 @@
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! Copyright (C) 2020 .
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! See http://factorcode.org/license.txt for BSD license.
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USING: alien.syntax math byte-arrays sequences ;
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IN: flac.format
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ENUM: flac-frame-number-type
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frame-number-type-frame
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frame-number-type-sample ;
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ENUM: flac-channel-assignment
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channels-mono
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channels-left/right
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channels-left/right/center
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channels-left/right/left-surround/right-surround
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channels-left/right/center/left-surround/right-surround
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channels-left/right/center/lfe/left-surround/right-surround
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channels-left/right/center/lfe/center-surround/side-left/side-right
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channels-left/right/center/lfe/left-surround/right-surround/side-left/side-right
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channels-left
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channels-right
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channels-mid ;
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TUPLE: flac-frame-header
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{ number-type maybe{ frame-number-type-frame frame-number-type-sample } }
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{ blocksize integer }
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{ sample-rate integer }
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{ channels integer }
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{ channel-assignment
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maybe{ channels-mono
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channels-left/right
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channels-left/right/center
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channels-left/right/left-surround/right-surround
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channels-left/right/center/left-surround/right-surround
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channels-left/right/center/lfe/left-surround/right-surround
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channels-left/right/center/lfe/center-surround/side-left/side-right
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channels-left/right/center/lfe/left-surround/right-surround/side-left/side-right
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channels-left
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channels-right
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channels-mid } }
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{ bits-per-sample integer }
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{ frame|sample-number integer }
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{ crc integer } ;
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ENUM: flac-subframe-type
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subframe-type-constant
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subframe-type-verbatim
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subframe-type-fixed
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subframe-type-lpc ;
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TUPLE: flac-subframe-header
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{ subframe-type maybe{ subframe-type-constant
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subframe-type-verbatim
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subframe-type-fixed
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subframe-type-lpc } }
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{ wasted-bits integer } ;
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TUPLE: flac-subframe
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{ subframe-header flac-subframe-header }
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{ data byte-array } ;
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ENUM: flac-entropy-coding-method
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entropy-coding-partioned-rice
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entropy-coding-partioned-rice2 ;
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TUPLE: flac-frame-footer
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{ crc integer } ;
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TUPLE: flac-frame
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{ header flac-frame-header }
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{ subframes sequence }
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{ footer flac-frame-footer } ;
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