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Update Regular Interval Labels 

Fixes bug 2014 - Regular Interval Labels fails.
Fixes bug 770 - Enh: Create region labels with "Regular Interval Labels"
Fixes bug 1298 - Windows: Regular Interval Labels on mutiple tracks
produces multiple labels.
This commit is contained in:
Steve Daulton 2018-10-22 18:04:53 +01:00
parent 388cf47a92
commit 72fbf1b0f3
1 changed files with 82 additions and 71 deletions
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153
plug-ins/equalabel.ny
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@ -1,17 +1,20 @@
$nyquist plug-in
$version 4
$type tool
$type tool analyze
$debugbutton false
$debugflags trace
$name (_ "Regular Interval Labels")
$manpage "Regular_Interval_Labels"
$action (_ "Adding equally-spaced labels to the label track...")
$author (_ "Steve Daulton")
$release 2.3.0
$release 2.3.1
$copyright (_ "Released under terms of the GNU General Public License version 2")
;; TODO: Rewrite as an AUD-DO script so as to remove the requirement for an audio selection.
;; Original version by David R. Sky (http://www.garyallendj.com/davidsky/) 2007.
;; Based on an idea by Sami Jumppanen, with contributions from
;; Alex S.Brown, Dominic Mazzoni, Pierre M.I., Gale Andrews, Steve Daulton.
;; This version by Steve Daulton (http://easyspacepro.com) 2016
;; Alex S.Brown, Dominic Mazzoni, Pierre M.I., Gale Andrews.
;; Released under terms of the GNU General Public License version 2:
;; http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
@ -20,79 +23,101 @@ $copyright (_ "Released under terms of the GNU General Public License version 2"
;; https://wiki.audacityteam.org/wiki/Nyquist_Plug-ins_Reference
$control mode (_ "Use 'Number of labels' OR 'Label interval'") choice (
("Number" (_ "Number of Labels"))
("Interval" (_ "Label Interval"))
) 0
;i18n-hint: Refers to the controls 'Number of labels' and 'Label interval'.
$control mode (_ "Create labels based on") choice (("Both" (_ "Number & Interval"))
("Number" (_ "Number of Labels"))
("Interval" (_ "Label Interval"))) 0
$control totalnum (_ "Number of labels") int-text "" 10 1 1000
$control interval (_ "Label interval (seconds)") float-text "" 60 0.001 3600
$control adjust (_ "Adjust label interval to fit length") choice (
(_ "No")
(_ "Yes")
) 0
$control interval (_ "Label interval (seconds)") float-text "" 10 0.001 3600
$control region (_ "Length of label region (seconds)") float-text "" 0 0 3600
$control adjust (_ "Adjust label interval to fit length") choice ((_ "No")
(_ "Yes")) 0
$control labeltext (_ "Label text") string "" (_ "Label")
$control zeros (_ "Minimum number of digits in label") choice (
("TextOnly" (_ "None - Text Only"))
("OneBefore" (_ "1 (Before Label)"))
("TwoBefore" (_ "2 (Before Label)"))
("ThreeBefore" (_ "3 (Before Label)"))
("OneAfter" (_ "1 (After Label)"))
("TwoAfter" (_ "2 (After Label)"))
("ThreeAfter" (_ "3 (After Label)"))
) 2
$control zeros (_ "Minimum number of digits in label") choice (("TextOnly" (_ "None - Text Only"))
("OneBefore" (_ "1 (Before Label)"))
("TwoBefore" (_ "2 (Before Label)"))
("ThreeBefore" (_ "3 (Before Label)"))
("OneAfter" (_ "1 (After Label)"))
("TwoAfter" (_ "2 (After Label)"))
("ThreeAfter" (_ "3 (After Label)"))) 2
$control firstnum (_ "Begin numbering from") int-text "" 1 0 nil
$control verbose (_ "Message on completion") choice ((_ "Details")
("Warnings" (_ "Warnings only"))
(_ "None")) 0
(defun make-labels ()
(defun make-labels (&aux labels)
"Generate labels at regular intervals"
(setf labels ())
;; Get parameters
(case mode
(0 ;Number of Labels
(setf interval (/ (get-duration 1) totalnum)))
(1 (setf totalnum (get-interval-count))
(1 ;Number
(setf interval
(if (= region 0)
(/ (- (get-duration 1) region) totalnum)
(/ (- (get-duration 1) region) (1- totalnum)))))
(2 ;Interval
(setf totalnum (get-interval-count))
(when (= adjust 1)
(setf interval (/ (get-duration 1) totalnum)))
(check-number-of-labels)))
(setf interval (/ (- (get-duration 1) region) totalnum))))
(t ;Number and Interval
))
;; Loop for required number of labels
(do* ((count 0 (1+ count))
(time 0 (* count interval)))
((= count totalnum) labels)
(push (make-one-label time (+ firstnum count)) labels)))
((= count totalnum))
(push (make-one-label time (+ firstnum count)) labels))
(when (and (> region 0)(= mode 2)(= adjust 1))
(push (make-one-label (- (get-duration 1) region)
(+ firstnum totalnum))
labels))
;; Create confirmation message
(when (< verbose 2)
(message totalnum interval))
labels)
(defun check-number-of-labels ()
"Throw error if excessive number of labels ('Interval' mode only)"
(when (> totalnum 1000)
(throw 'err
(format nil ("Too many labels.~%~%~
Selection length is ~a seconds and~%~
Label interval is ~a seconds~%~
giving a total of ~a labels.~%~
Maximum number of labels from this effect is 1000.~%~
Please use a shorter selection, or a longer Label interval.")
(formatgg (get-duration 1))
(formatgg interval)
(if (= adjust 1)
(round (/ (get-duration 1) interval))
(1+ (round (/ (get-duration 1) interval))))))))
(defun get-interval-count ()
(defun message (number interval)
"Generate output message in debug window."
(if (> region interval)
(setf msg (format nil (_ "Warning: Overlapping region labels.~%")))
(setf msg ""))
(cond
((= verbose 1) ;Warnings only
(format t msg))
(t (if (> region 0)
;i18n-hint: Type of label
(setf labeltype (_ "region labels"))
(setf labeltype (_ "point labels")))
(when (and (> region 0)(= mode 2)(= adjust 1))
(setf number (1+ number)))
(setf msg
;i18n-hint: Number of labels produced at specified intervals.
(format nil (_ "~a~a ~a at intervals of ~a seconds.~%")
msg number labeltype interval))
(if (> region 0)
(format t (_ "~aRegion length = ~a seconds.")
msg region)
(format t msg)))))
(defun get-interval-count (&aux dur)
"Number of labels when interval is specified"
(setf dur (- (get-duration 1) region))
(case adjust
;; Interval is user input value
(0 (let ((n (truncate (/ (get-duration 1) interval))))
(if (< (* n interval)(get-duration 1))
(0 (let ((n (truncate (/ dur interval))))
(if (< (* n interval) dur)
(1+ n)
n)))
;; Adjust interval to fit length
(1 (let* ((min-num (truncate (/ (get-duration 1) interval)))
(1 (let* ((min-num (truncate (/ dur interval)))
(max-num (1+ min-num)))
(if (and (> min-num 0)
(< (abs (- interval (/ (get-duration 1) min-num)))
(abs (- interval (/ (get-duration 1) max-num)))))
(< (abs (- interval (/ dur min-num)))
(abs (- interval (/ dur max-num)))))
min-num
max-num)))))
(defun make-one-label (time num)
"Make a single label"
(let* ((num-text (format nil "~a" num))
@ -104,28 +129,14 @@ $control firstnum (_ "Begin numbering from") int-text "" 1 0 nil
(if num-before-text
(setf text (format nil "~a~a" num-text labeltext))
(setf text (format nil "~a~a" labeltext num-text)))
(list time text)))
(list time (+ time region) text)))
(defun lasttrackp ()
"true when processing the final selected track"
"True when processing the final selected track"
(let ((index (get '*track* 'index))
(num (length (get '*selection* 'tracks))))
(= index num)))
(defun formatgg (num)
"Similar to float-format %g but more decimal places"
(cond
((/= num (truncate num)) ; not integer
(setf *float-format* "%.5f")
(let ((numtxt (format nil "~a" num)))
(do* ((i (1- (length numtxt)) (1- i))
(ch (char numtxt i)(char numtxt i)))
((char/= ch #\0))
(setf numtxt (subseq numtxt 0 i)))
(setf *float-format* "%g")
numtxt))
(t num)))
(setf num-before-text (<= zeros 3))
(setf zeros (1+ (rem (1- zeros) 3)))
@ -133,5 +144,5 @@ $control firstnum (_ "Begin numbering from") int-text "" 1 0 nil
;; Analyze plug-ins may return text message per track but
;; we only want error messages once, and only one set of labels.
(if (lasttrackp)
(catch 'err (make-labels))
nil)
(make-labels)
"") ;No-op