Cleanup of vibe code and replacement by self coded audio manager.

This commit is contained in:
2026-06-26 18:06:31 +02:00
parent fd8ff1ab1e
commit 14bf3a1da1
21 changed files with 43 additions and 1449 deletions
-8
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@@ -1,8 +0,0 @@
#lang racket/base
(require "fingerprint.rkt")
(provide inspect-flac-sample-rate)
(define (inspect-flac-sample-rate path)
(flac-streaminfo-sample-rate (read-flac-streaminfo path)))
-43
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@@ -1,43 +0,0 @@
#lang racket/base
(require racket/file
racket/path)
(provide convert-flac-to-target-in-place)
(define (temp-output-path input-path)
(define-values (base name dir?) (split-path input-path))
(define name-str (path->string name))
(build-path base (format ".~a.tmp-~a.flac" name-str (current-inexact-milliseconds))))
(define (settings->hash max-sample-rate compression-level)
(make-immutable-hash
(list (cons 'target-sample-rate max-sample-rate)
(cons 'compression-level compression-level))))
(define (delete-file/quiet path)
(with-handlers ([exn:fail? (lambda (_) #f)])
(when (file-exists? path) (delete-file path))))
(define (convert-flac-to-target-in-place input-path max-sample-rate compression-level
#:progress-callback [progress-callback #f])
(define tmp-path (temp-output-path input-path))
(define audio-encode (dynamic-require 'racket-audio/audio-encoder 'audio-encode))
(with-handlers ([exn:break?
(lambda (e)
(delete-file/quiet tmp-path)
(raise e))]
[exn:fail?
(lambda (e)
(delete-file/quiet tmp-path)
(error 'convert-flac-to-target-in-place
"conversion failed for ~a: ~a" input-path (exn-message e)))])
(define result
(audio-encode (path->string input-path)
(path->string tmp-path)
(settings->hash max-sample-rate compression-level)
#:encoder 'flac
#:copy-tags? #t
#:progress-callback progress-callback))
(rename-file-or-directory tmp-path input-path #t)
result))
-43
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@@ -1,43 +0,0 @@
#lang racket/base
(require racket/file
racket/path
"util.rkt")
(provide convert-flac-to-target-in-place)
(define (temp-output-path input-path)
(define-values (base name dir?) (split-path input-path))
(define name-str (path->string name))
(build-path base (format ".~a.tmp-~a.flac" name-str (current-inexact-milliseconds))))
(define (delete-file/quiet! p)
(with-handlers ([exn:fail? (lambda (_) (void))])
(when (file-exists? p) (delete-file p))))
(define (settings max-sample-rate compression-level)
(make-immutable-hash
(list (cons 'target-sample-rate max-sample-rate)
(cons 'compression-level compression-level))))
(define (call-audio-encode audio-encode in-file out-file settings progress-callback)
(if progress-callback
(audio-encode in-file out-file settings
#:encoder 'flac
#:copy-tags? #t
#:progress-callback progress-callback)
(audio-encode in-file out-file settings
#:encoder 'flac
#:copy-tags? #t)))
(define (convert-flac-to-target-in-place input-path max-sample-rate compression-level
#:progress-callback [progress-callback #f])
(define tmp-path (temp-output-path input-path))
(with-handlers ([exn:break? (lambda (e) (delete-file/quiet! tmp-path) (raise e))]
[exn:fail? (lambda (e) (delete-file/quiet! tmp-path) (raise e))])
(define audio-encode (dynamic-require 'racket-audio/audio-encoder 'audio-encode))
(define result (call-audio-encode audio-encode input-path tmp-path
(settings max-sample-rate compression-level)
progress-callback))
(rename-file-or-directory tmp-path input-path #t)
result))
-55
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@@ -1,55 +0,0 @@
#lang racket/base
(require racket/file
racket/list
racket/path
racket/string)
(provide sidecar-cover-path
ensure-flac-sidecar-picture!)
(define cover-names '("cover.jpg" "folder.jpg" "cover.png" "folder.png"))
(define (path-name-ci=? p s)
(define-values (_base name _dir?) (split-path p))
(and (path? name) (string-ci=? (path->string name) s)))
(define (sidecar-cover-path audio-path)
(define-values (dir _name _dir?) (split-path audio-path))
(and (path? dir)
(for/or ([wanted (in-list cover-names)])
(or (let ([candidate (build-path dir wanted)])
(and (file-exists? candidate) candidate))
(for/or ([p (in-list (with-handlers ([exn:fail? (lambda (_) '())])
(directory-list dir #:build? #t)))])
(and (file-exists? p) (path-name-ci=? p wanted) p))))))
(define (cover-mimetype path)
(define ext (let-values ([(base name dir?) (split-path path)])
(and (path? name) (path-get-extension name))))
(cond [(and ext (member (string-downcase (bytes->string/utf-8 ext)) '(".jpg" ".jpeg"))) "image/jpeg"]
[(and ext (string-ci=? (bytes->string/utf-8 ext) ".png")) "image/png"]
[else (error 'cover-mimetype "unsupported cover image extension: ~a" path)]))
(define (ensure-flac-sidecar-picture! flac-path)
(define cover (sidecar-cover-path flac-path))
(and cover
(let ()
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-picture (dynamic-require 'racket-audio/taglib 'tags-picture))
(define tags-picture! (dynamic-require 'racket-audio/taglib 'tags-picture!))
(define tags-save! (dynamic-require 'racket-audio/taglib 'tags-save!))
(define make-tags-picture (dynamic-require 'racket-audio/taglib 'make-tags-picture))
(call-with-id3-tags
flac-path
(lambda (tags)
(cond [(not (tags-valid? tags)) #f]
[(tags-picture tags) #f]
[else
(define picture (make-tags-picture (cover-mimetype cover) 3 (file->bytes cover)
#:description "Front cover"))
(tags-picture! tags picture)
(tags-save! tags)
cover]))
#:mode 'read-write))))
+3 -3
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@@ -8,7 +8,7 @@
(provide make-file-walker
make-file-admin
fw-add-filter
fw-add-step
os-path
)
@@ -138,11 +138,11 @@
f))
)
(define (fw-add-filter fw filter-func)
(define (fw-add-step fw step-func)
(λ ()
(let-values (((base-path path info) (fw)))
(if (eq? info #f)
(values #f #f #f)
(filter-func base-path path info))))
(step-func base-path path info))))
)
-177
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@@ -1,177 +0,0 @@
#lang racket/base
(require file/sha1
racket/list
racket/port
racket/string
"util.rkt")
(provide read-flac-streaminfo
flac-streaminfo-sample-rate
flac-streaminfo-fingerprint
flac-taglib-fingerprint)
(struct flac-streaminfo
(min-blocksize max-blocksize min-framesize max-framesize sample-rate channels bits-per-sample total-samples audio-md5)
#:transparent)
(define (u16be b i)
(+ (arithmetic-shift (bytes-ref b i) 8)
(bytes-ref b (+ i 1))))
(define (u24be b i)
(+ (arithmetic-shift (bytes-ref b i) 16)
(arithmetic-shift (bytes-ref b (+ i 1)) 8)
(bytes-ref b (+ i 2))))
(define (u64be b i)
(for/fold ([n 0]) ([j (in-range i (+ i 8))])
(+ (arithmetic-shift n 8) (bytes-ref b j))))
(define (hex-bytes b)
(bytes->hex-string b))
(define (sha256-string s)
(bytes->hex-string (sha256-bytes (string->bytes/utf-8 s))))
(define (read-exact-bytes who in n)
(define b (read-bytes n in))
(unless (and (bytes? b) (= (bytes-length b) n))
(error who "unexpected end of file"))
b)
(define (syncsafe-byte? b)
(< b #x80))
(define (u28-syncsafe b i)
(unless (and (syncsafe-byte? (bytes-ref b i))
(syncsafe-byte? (bytes-ref b (+ i 1)))
(syncsafe-byte? (bytes-ref b (+ i 2)))
(syncsafe-byte? (bytes-ref b (+ i 3))))
(error 'read-flac-streaminfo "invalid ID3v2 syncsafe size"))
(+ (arithmetic-shift (bytes-ref b i) 21)
(arithmetic-shift (bytes-ref b (+ i 1)) 14)
(arithmetic-shift (bytes-ref b (+ i 2)) 7)
(bytes-ref b (+ i 3))))
(define (read-flac-marker path in)
(define first (read-exact-bytes 'read-flac-streaminfo in 4))
(cond [(bytes=? first #"fLaC") 'native]
[(and (= (bytes-ref first 0) (char->integer #\I))
(= (bytes-ref first 1) (char->integer #\D))
(= (bytes-ref first 2) (char->integer #\3)))
(let* ([_0 (file-position in 0)]
[id3-header (read-exact-bytes 'read-flac-streaminfo in 10)]
[flags (bytes-ref id3-header 5)]
[tag-size (u28-syncsafe id3-header 6)]
[footer-size (if (not (zero? (bitwise-and flags #x10))) 10 0)]
[_1 (file-position in (+ 10 tag-size footer-size))]
[marker (read-exact-bytes 'read-flac-streaminfo in 4)])
(unless (bytes=? marker #"fLaC")
(error 'read-flac-streaminfo
"ID3v2 prefix found, but no FLAC marker after prefix: ~a"
path))
'id3v2-prefixed)]
[else
(error 'read-flac-streaminfo "not a native FLAC file: ~a" path)]))
(define (read-flac-streaminfo path)
(call-with-input-file path
(lambda (in)
(read-flac-marker path in)
(let loop ()
(define header (read-exact-bytes 'read-flac-streaminfo in 4))
(define last? (not (zero? (bitwise-and (bytes-ref header 0) #x80))))
(define block-type (bitwise-and (bytes-ref header 0) #x7f))
(define len (u24be header 1))
(cond [(= block-type 0)
(unless (= len 34)
(error 'read-flac-streaminfo "invalid STREAMINFO length ~a for ~a" len path))
(define b (read-exact-bytes 'read-flac-streaminfo in len))
(define packed (u64be b 10))
(define sample-rate (bitwise-and (arithmetic-shift packed -44) #xfffff))
(define channels (+ 1 (bitwise-and (arithmetic-shift packed -41) #x7)))
(define bits-per-sample (+ 1 (bitwise-and (arithmetic-shift packed -36) #x1f)))
(define total-samples (bitwise-and packed #xfffffffff))
(flac-streaminfo (u16be b 0)
(u16be b 2)
(u24be b 4)
(u24be b 7)
sample-rate
channels
bits-per-sample
total-samples
(subbytes b 18 34))]
[last? (error 'read-flac-streaminfo "STREAMINFO block not found in ~a" path)]
[else
(define skipped (read-bytes len in))
(unless (and (bytes? skipped) (= (bytes-length skipped) len))
(error 'read-flac-streaminfo "unexpected end of file while skipping metadata block"))
(loop)])))
#:mode 'binary))
(define (flac-streaminfo-fingerprint-data path)
(define si (read-flac-streaminfo path))
(list (cons 'kind 'flac-streaminfo)
(cons 'min-blocksize (flac-streaminfo-min-blocksize si))
(cons 'max-blocksize (flac-streaminfo-max-blocksize si))
(cons 'min-framesize (flac-streaminfo-min-framesize si))
(cons 'max-framesize (flac-streaminfo-max-framesize si))
(cons 'sample-rate (flac-streaminfo-sample-rate si))
(cons 'channels (flac-streaminfo-channels si))
(cons 'bits-per-sample (flac-streaminfo-bits-per-sample si))
(cons 'total-samples (flac-streaminfo-total-samples si))
(cons 'audio-md5 (hex-bytes (flac-streaminfo-audio-md5 si)))))
(define (canonical-value v)
(cond [(string? v) v]
[(symbol? v) (symbol->string v)]
[(number? v) v]
[(boolean? v) v]
[(bytes? v) (list 'bytes-sha256 (bytes-length v) (hex-bytes (sha256-bytes v)))]
[(list? v) (map canonical-value v)]
[(eq? v #f) #f]
[else (format "~s" v)]))
(define (taglib-fingerprint-data path)
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-keys (dynamic-require 'racket-audio/taglib 'tags-keys))
(define tags-ref (dynamic-require 'racket-audio/taglib 'tags-ref))
(define tags-picture (dynamic-require 'racket-audio/taglib 'tags-picture))
(define id3-picture? (dynamic-require 'racket-audio/taglib 'id3-picture?))
(define id3-picture-mimetype (dynamic-require 'racket-audio/taglib 'id3-picture-mimetype))
(define id3-picture-kind (dynamic-require 'racket-audio/taglib 'id3-picture-kind))
(define id3-picture-size (dynamic-require 'racket-audio/taglib 'id3-picture-size))
(define id3-picture-bytes (dynamic-require 'racket-audio/taglib 'id3-picture-bytes))
(define id3-picture-description (dynamic-require 'racket-audio/taglib 'id3-picture-description))
(call-with-id3-tags
path
(lambda (tags)
(unless (tags-valid? tags)
(error 'taglib-fingerprint-data "invalid tags for ~a" path))
(define keys (sort (map canonical-value (tags-keys tags)) string<? #:key (lambda (x) (format "~a" x))))
(define values
(for/list ([k (in-list keys)])
(cons k (canonical-value (tags-ref tags k)))))
(define picture (tags-picture tags))
(define picture-data
(if (and picture (id3-picture? picture))
(list (cons 'mimetype (id3-picture-mimetype picture))
(cons 'kind (id3-picture-kind picture))
(cons 'size (id3-picture-size picture))
(cons 'description (id3-picture-description picture))
(cons 'bytes-sha256 (hex-bytes (sha256-bytes (id3-picture-bytes picture)))))
#f))
(list (cons 'kind 'taglib)
(cons 'properties values)
(cons 'picture picture-data)))
#:mode 'read))
(define (flac-taglib-fingerprint path)
(sha256-string (format "~s" (list (flac-streaminfo-fingerprint-data path)
(taglib-fingerprint-data path)))))
(define (flac-streaminfo-fingerprint path)
(sha256-string (format "~s" (flac-streaminfo-fingerprint-data path))))
-54
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@@ -1,54 +0,0 @@
#lang racket/base
(require racket/list
keystore
"util.rkt")
(provide open-flac2opus-state
flac2opus-state-get-file
flac2opus-state-set-file!
flac2opus-state-drop-file!
flac2opus-state-known-relpaths)
(define prefix "flac2opus:file:")
(define (open-flac2opus-state state-file)
(ks-open state-file))
(define (file-state-key relpath)
(string-append prefix (normalize-relpath-string relpath)))
(define (legacy-file-state-key relpath)
(string-append prefix (legacy-backslash-relpath-string relpath)))
(define (ks-drop/quiet! ks key)
(with-handlers ([exn:fail? (lambda (_) (void))])
(ks-drop! ks key)))
(define (flac2opus-state-get-file ks relpath [default #f])
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(define missing (gensym 'missing))
(define value (ks-get ks key missing))
(cond [(not (eq? value missing)) value]
[(equal? key legacy-key) default]
[else (ks-get ks legacy-key default)]))
(define (flac2opus-state-set-file! ks relpath value)
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(ks-set! ks key value)
(unless (equal? key legacy-key) (ks-drop/quiet! ks legacy-key)))
(define (flac2opus-state-drop-file! ks relpath)
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(ks-drop/quiet! ks key)
(unless (equal? key legacy-key) (ks-drop/quiet! ks legacy-key)))
(define (flac2opus-state-known-relpaths ks)
(remove-duplicates
(map (lambda (k)
(normalize-relpath-string (substring k (string-length prefix))))
(ks-keys-glob ks (string-append prefix "*")))
equal?))
-21
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@@ -1,21 +0,0 @@
#lang racket/base
; No external crypto package dependency: sha256-bytes is provided by racket/base.
(require file/sha1
file/md5)
(provide file-digest)
(define (digest->string v)
(cond [(bytes? v) (bytes->hex-string v)]
[(string? v) v]
[else (format "~a" v)]))
(define (file-digest path [algorithm "sha256"])
(define alg (string-downcase (format "~a" algorithm)))
(call-with-input-file path
(lambda (in)
(cond [(member alg '("sha256" "sha-256" "sha2")) (digest->string (sha256-bytes in))]
[(member alg '("md5")) (digest->string (md5 in))]
[else (error 'file-digest "unsupported digest algorithm: ~a" algorithm)]))
#:mode 'binary))
-77
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@@ -1,77 +0,0 @@
#lang racket/base
(require racket/file
racket/path
simple-ini
"util.rkt")
(provide manager-ini-file
manager-state-file
ensure-default-manager-ini!
load-manager-ini
ini-ref/bool
ini-ref/int
ini-ref/string
ini-ref/path
ini-ref/addresses)
(define (manager-ini-file base-dir*)
(build-path (filesystem-path base-dir*) ".flac-48khz-manager.ini"))
(define (manager-state-file base-dir*)
(build-path (filesystem-path base-dir*) ".music-info.db"))
(define (ensure-default-manager-ini! ini-file)
(unless (file-exists? ini-file)
(define ini (make-ini))
(ini-set! ini 'manager 'max-sample-rate 48000)
(ini-set! ini 'manager 'hash-algorithm "sha256")
(ini-set! ini 'manager 'change-detection "flac-taglib")
(ini-set! ini 'manager 'dry-run #f)
(ini-set! ini 'manager 'display-log #t)
(ini-set! ini 'manager 'log-file ".flac-48khz-manager.log")
(ini-set! ini 'manager 'compression-level 5)
(ini-set! ini 'opus-manager 'log-file ".flac2opus-manager.log")
(ini-set! ini 'mail 'enabled #f)
(ini-set! ini 'mail 'send-on-success #f)
(ini-set! ini 'mail 'send-on-error #t)
(ini-set! ini 'mail 'host "")
(ini-set! ini 'mail 'port 25)
(ini-set! ini 'mail 'tls #f)
(ini-set! ini 'mail 'username "")
(ini-set! ini 'mail 'password "")
(ini-set! ini 'mail 'from "")
(ini-set! ini 'mail 'to "")
(ini-set! ini 'mail 'cc "")
(ini-set! ini 'mail 'bcc "")
(ini-set! ini 'mail 'subject-prefix "[flac-48khz-manager]")
(ini->file ini ini-file)))
(define (load-manager-ini base-dir*)
(define ini-file (manager-ini-file base-dir*))
(ensure-default-manager-ini! ini-file)
(file->ini ini-file))
(define (ini-ref/bool ini section key default)
(bool-value (ini-get ini section key default) default))
(define (ini-ref/int ini section key default)
(int-value (ini-get ini section key default) default))
(define (ini-ref/string ini section key default)
(string-value (ini-get ini section key default) default))
(define (resolve-ini-path base-dir v default)
(define p (string-value v default))
(cond [(path-string? p)
(define bp (string->path p))
(if (absolute-path? bp) bp (build-path base-dir bp))]
[else (build-path base-dir default)]))
(define (ini-ref/path ini base-dir section key default)
(resolve-ini-path (filesystem-path base-dir)
(ini-get ini section key default)
default))
(define (ini-ref/addresses ini section key default)
(split-addresses (ini-get ini section key default)))
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@@ -1,116 +0,0 @@
#lang racket/base
(require racket/file
racket/list
racket/path
racket/string
"util.rkt")
(provide convert-flac-to-opus)
(define conversion-note "Converted from FLAC to Opus by flac2opus-manager")
(define (temp-output-path output-path)
(define-values (base name dir?) (split-path output-path))
(define name-str (if (path? name) (path->string name) "output.opus"))
(build-path base (format ".~a.tmp-~a.opus" name-str (current-inexact-milliseconds))))
(define (list-of-strings? v)
(and (list? v) (andmap string? v)))
(define (property-key-symbol k)
(cond [(symbol? k) k]
[(string? k) (string->symbol (string-downcase k))]
[else (string->symbol (string-downcase (format "~a" k)))]))
(define (first-comment-value v)
(cond [(and (pair? v) (string? (car v))) (car v)]
[(string? v) v]
[else #f]))
(define (source-tags-data input-file)
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-keys (dynamic-require 'racket-audio/taglib 'tags-keys))
(define tags-ref (dynamic-require 'racket-audio/taglib 'tags-ref))
(define tags-picture (dynamic-require 'racket-audio/taglib 'tags-picture))
(call-with-id3-tags
input-file
(lambda (tags)
(if (not (tags-valid? tags))
(list (cons 'properties '()) (cons 'picture #f))
(let* ((keys (sort (tags-keys tags) string<? #:key (lambda (x) (format "~a" x))))
(properties (for/list ([k (in-list keys)])
(cons (property-key-symbol k) (tags-ref tags k)))))
(list (cons 'properties properties)
(cons 'picture (tags-picture tags))))))
#:mode 'read))
(define (source-tags->settings input-file kbps)
(define data (source-tags-data input-file))
(define properties (alist-ref/default data 'properties '()))
(define picture (alist-ref/default data 'picture #f))
(define comments (make-hash))
(for ([kv (in-list properties)])
(define v (first-comment-value (cdr kv)))
(when v (hash-set! comments (car kv) v)))
(hash-set! comments 'flac2opus conversion-note)
(define settings (make-hash))
(hash-set! settings 'bitrate (* kbps 1000))
(hash-set! settings 'vbr? #t)
(hash-set! settings 'comments comments)
(unless (eq? picture #f) (hash-set! settings 'picture picture))
(values settings properties picture))
(define (copy-all-tag-properties! output-file properties picture)
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-set-values! (dynamic-require 'racket-audio/taglib 'tags-set-values!))
(define tags-set! (dynamic-require 'racket-audio/taglib 'tags-set!))
(define tags-picture! (dynamic-require 'racket-audio/taglib 'tags-picture!))
(define tags-save! (dynamic-require 'racket-audio/taglib 'tags-save!))
(call-with-id3-tags
output-file
(lambda (tags)
(when (tags-valid? tags)
(for ([kv (in-list properties)])
(define v (cdr kv))
(cond [(list-of-strings? v) (tags-set-values! tags (car kv) v)]
[(string? v) (tags-set! tags (car kv) v)]
[else (void)]))
(tags-set! tags 'flac2opus conversion-note)
(unless (eq? picture #f) (tags-picture! tags picture))
(tags-save! tags)))
#:mode 'read-write))
(define (delete-file/quiet path)
(with-handlers ([exn:fail? (lambda (_) #f)])
(when (file-exists? path) (delete-file path))))
(define (convert-flac-to-opus input-path output-path kbps
#:progress-callback [progress-callback #f])
(define tmp-path (temp-output-path output-path))
(ensure-parent-directory! tmp-path)
(with-handlers ([exn:break?
(lambda (e)
(delete-file/quiet tmp-path)
(raise e))]
[exn:fail?
(lambda (e)
(delete-file/quiet tmp-path)
(error 'convert-flac-to-opus
"conversion failed for ~a: ~a" input-path (exn-message e)))])
(define-values (settings properties picture)
(source-tags->settings (path->string input-path) kbps))
(define audio-encode (dynamic-require 'racket-audio/audio-encoder 'audio-encode))
(define result
(audio-encode (path->string input-path)
(path->string tmp-path)
settings
#:encoder 'opus
#:copy-tags? #f
#:progress-callback progress-callback))
(copy-all-tag-properties! (path->string tmp-path) properties picture)
(ensure-parent-directory! output-path)
(rename-file-or-directory tmp-path output-path #t)
result))
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#lang racket/base
(require racket/file
racket/list
racket/path
racket/string
"util.rkt")
(provide convert-flac-to-opus)
(define conversion-note "Converted from FLAC to Opus by flac2opus-manager")
(define (temp-output-path output-path)
(define-values (base name dir?) (split-path output-path))
(define name-str (if (path? name) (path->string name) "output.opus"))
(build-path base (format ".~a.tmp-~a.opus" name-str (current-inexact-milliseconds))))
(define (delete-file/quiet! p)
(with-handlers ([exn:fail? (lambda (_) (void))])
(when (file-exists? p) (delete-file p))))
(define (list-of-strings? v)
(and (list? v) (andmap string? v)))
(define (property-key-symbol k)
(cond [(symbol? k) k]
[(string? k) (string->symbol (string-downcase k))]
[else (string->symbol (string-downcase (format "~a" k)))]))
(define (first-comment-value v)
(cond [(and (pair? v) (string? (car v))) (car v)]
[(string? v) v]
[else #f]))
(define (source-tags-data input-file)
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-keys (dynamic-require 'racket-audio/taglib 'tags-keys))
(define tags-ref (dynamic-require 'racket-audio/taglib 'tags-ref))
(define tags-picture (dynamic-require 'racket-audio/taglib 'tags-picture))
(call-with-id3-tags
input-file
(lambda (tags)
(if (not (tags-valid? tags))
(list (cons 'properties '()) (cons 'picture #f))
(let* ((keys (sort (tags-keys tags) string<? #:key (lambda (x) (format "~a" x))))
(properties (for/list ([k (in-list keys)])
(cons (property-key-symbol k) (tags-ref tags k)))))
(list (cons 'properties properties)
(cons 'picture (tags-picture tags))))))
#:mode 'read))
(define (source-tags->settings input-file kbps)
(define data (source-tags-data input-file))
(define properties (alist-ref/default data 'properties '()))
(define picture (alist-ref/default data 'picture #f))
(define comments (make-hash))
(for ([kv (in-list properties)])
(define v (first-comment-value (cdr kv)))
(when v (hash-set! comments (car kv) v)))
(hash-set! comments 'flac2opus conversion-note)
(define settings (make-hash))
(hash-set! settings 'bitrate (* kbps 1000))
(hash-set! settings 'vbr? #t)
(hash-set! settings 'comments comments)
;; Do not put the id3-picture struct in settings. It makes the encoder result
;; harder to store or serialize, and the picture is copied explicitly below.
(values settings properties picture))
(define (copy-all-tag-properties! output-file properties picture)
(define call-with-id3-tags (dynamic-require 'racket-audio/taglib 'call-with-id3-tags))
(define tags-valid? (dynamic-require 'racket-audio/taglib 'tags-valid?))
(define tags-set-values! (dynamic-require 'racket-audio/taglib 'tags-set-values!))
(define tags-set! (dynamic-require 'racket-audio/taglib 'tags-set!))
(define tags-picture! (dynamic-require 'racket-audio/taglib 'tags-picture!))
(define tags-save! (dynamic-require 'racket-audio/taglib 'tags-save!))
(call-with-id3-tags
output-file
(lambda (tags)
(when (tags-valid? tags)
(for ([kv (in-list properties)])
(define v (cdr kv))
(cond [(list-of-strings? v) (tags-set-values! tags (car kv) v)]
[(string? v) (tags-set! tags (car kv) v)]
[else (void)]))
(tags-set! tags 'flac2opus conversion-note)
(unless (eq? picture #f) (tags-picture! tags picture))
(tags-save! tags)))
#:mode 'read-write))
(define (call-audio-encode audio-encode in-file out-file settings progress-callback)
(if progress-callback
(audio-encode in-file out-file settings
#:encoder 'opus
#:copy-tags? #f
#:progress-callback progress-callback)
(audio-encode in-file out-file settings
#:encoder 'opus
#:copy-tags? #f)))
(define (convert-flac-to-opus input-path output-path kbps #:progress-callback [progress-callback #f])
(define tmp-path (temp-output-path output-path))
(ensure-parent-directory! tmp-path)
(with-handlers ([exn:break? (lambda (e) (delete-file/quiet! tmp-path) (raise e))]
[exn:fail? (lambda (e) (delete-file/quiet! tmp-path) (raise e))])
(define-values (settings properties picture) (source-tags->settings input-path kbps))
(define audio-encode (dynamic-require 'racket-audio/audio-encoder 'audio-encode))
(define result (call-audio-encode audio-encode input-path tmp-path settings progress-callback))
(copy-all-tag-properties! tmp-path properties picture)
(ensure-parent-directory! output-path)
(rename-file-or-directory tmp-path output-path #t)
result))
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#lang racket/base
(require racket/list
racket/string
"util.rkt")
(provide make-empty-summary
summary-inc
summary-set
summary-ref
summary->lines
html-report)
(define summary-keys '(seen processed new changed unchanged ok converted copied removed skipped errors dry-run))
(define (make-empty-summary)
(append (for/list ([k (in-list summary-keys)]) (cons k 0))
(list (cons 'error-list '()))))
(define (summary-ref summary key [default 0])
(alist-ref/default summary key default))
(define (summary-set summary key value)
(alist-set summary key value))
(define (summary-inc summary key [amount 1])
(summary-set summary key (+ (summary-ref summary key 0) amount)))
(define (summary->lines summary)
(for/list ([k (in-list summary-keys)])
(format "~a: ~a" k (summary-ref summary k 0))))
(define (html-escape s)
(define x (format "~a" s))
(define y (regexp-replace* #rx"&" x "&amp;"))
(define z (regexp-replace* #rx"<" y "&lt;"))
(regexp-replace* #rx">" z "&gt;"))
(define (html-report title summary errors)
(define rows
(apply string-append
(for/list ([k (in-list summary-keys)])
(format "<tr><th style=\"text-align:left;padding:4px 10px 4px 0\">~a</th><td style=\"text-align:right;padding:4px\">~a</td></tr>"
(html-escape k) (summary-ref summary k 0)))))
(define error-html
(if (null? errors)
"<p>No errors were reported.</p>"
(string-append
"<h2>Errors</h2><table border=\"1\" cellspacing=\"0\" cellpadding=\"4\"><tr><th>File</th><th>Error</th></tr>"
(apply string-append
(for/list ([e (in-list errors)])
(format "<tr><td>~a</td><td><pre style=\"white-space:pre-wrap\">~a</pre></td></tr>"
(html-escape (alist-ref/default e 'file ""))
(html-escape (alist-ref/default e 'message "")))))
"</table>")))
(format "<!doctype html><html><head><meta charset=\"utf-8\"><title>~a</title></head><body><h1>~a</h1><h2>Summary</h2><table>~a</table>~a</body></html>"
(html-escape title) (html-escape title) rows error-html))
-17
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#lang racket/base
(require racket/list
racket/path
"util.rkt")
(provide find-flac-files
find-regular-files)
(define (sort-paths paths)
(sort paths string<? #:key path->string))
(define (find-regular-files base-dir)
(sort-paths (directory-file-paths base-dir)))
(define (find-flac-files base-dir)
(filter flac-path? (find-regular-files base-dir)))
-55
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#lang racket/base
(require racket/list
keystore
"util.rkt")
(provide open-manager-state
file-state-key
state-get-file
state-set-file!
state-drop-file!
state-known-relpaths)
(define prefix "flac-48khz:file:")
(define (open-manager-state state-file)
(ks-open state-file))
(define (file-state-key relpath)
(string-append prefix (normalize-relpath-string relpath)))
(define (legacy-file-state-key relpath)
(string-append prefix (legacy-backslash-relpath-string relpath)))
(define (ks-drop/quiet! ks key)
(with-handlers ([exn:fail? (lambda (_) (void))])
(ks-drop! ks key)))
(define (state-get-file ks relpath [default #f])
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(define missing (gensym 'missing))
(define value (ks-get ks key missing))
(cond [(not (eq? value missing)) value]
[(equal? key legacy-key) default]
[else (ks-get ks legacy-key default)]))
(define (state-set-file! ks relpath value)
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(ks-set! ks key value)
(unless (equal? key legacy-key) (ks-drop/quiet! ks legacy-key)))
(define (state-drop-file! ks relpath)
(define key (file-state-key relpath))
(define legacy-key (legacy-file-state-key relpath))
(ks-drop/quiet! ks key)
(unless (equal? key legacy-key) (ks-drop/quiet! ks legacy-key)))
(define (state-known-relpaths ks)
(remove-duplicates
(map (lambda (k)
(normalize-relpath-string (substring k (string-length prefix))))
(ks-keys-glob ks (string-append prefix "*")))
equal?))