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# Commands covered: snack::filter
#
package require -exact snack 2.2
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import ::tcltest::*
}
test filter-1.1 {filter command create/destroy} {
set f [snack::filter map 1.0]
set res $f
$f destroy
set res
} map1
test filter-1.2 {filter command configure} {
set f [snack::filter map 1.0]
$f configure 0.5
set res $f
$f destroy
set res
} map2
test filter-2.1 {sound filter command, map 0.5} {
set s [snack::sound snd -load ex1.wav]
set f [snack::filter map 0.5]
$s filter $f
set res [$s sample 0]
$f destroy
$s destroy
set res
} 588
test filter-2.2 {sound filter command, map 0.1} {
set s [snack::sound snd -load ex1.wav]
set f [snack::filter map 0.1]
$s filter $f
set res [$s sample 0]
$f destroy
$s destroy
set res
} 117
test filter-2.3 {sound filter command, map stereo r<->l} {
set s [snack::sound snd -channels 2]
$s length 10
$s sample 5 1 2
set f [snack::filter map 0 1 1 0]
$s filter $f
set res [$s sample 5]
$f destroy
$s destroy
set res
} {2 1}
test filter-2.4 {sound filter command, map stereo r+l/2} {
set s [snack::sound snd -channels 2]
$s length 10
$s sample 5 10 20
set f [snack::filter map 0.5 0.5 0.5 0.5]
$s filter $f
set res [$s sample 5]
$f destroy
$s destroy
set res
} {15 15}
test filter-2.7 {sound filter command, with -start/-end options} {
set s [snack::sound snd]
$s length 1000000
$s sample 500001 1000
$s sample 500002 1000
$s sample 500003 1000
$s sample 500004 1000
set f [snack::filter map 0.5]
$s filter $f -start 500002 -end 500003
set res [$s sample 500001],[$s sample 500002],[$s sample 500003],[$s sample 500004]
$f destroy
$s destroy
set res
} {1000,500,500,1000}
test filter-2.8 {sound filter command, stereo, with -start/-end options} {
set s [snack::sound snd -channels 2]
$s length 1000000
$s sample 500001 1002 2002
$s sample 500002 1004 2004
$s sample 500003 1006 2006
$s sample 500004 1008 2008
set f [snack::filter map 0.5]
$s filter $f -start 500002 -end 500003
set res [$s sample 500001],[$s sample 500002],[$s sample 500003],[$s sample 500004]
$f destroy
$s destroy
set res
} {1002 2002,502 1002,503 1003,1008 2008}
test filter-2.9 {sound filter command, with -start/-end options} {
set s [snack::sound snd]
$s length 1000000
$s sample 400001 1000
$s sample 400002 1000
$s sample 600003 1000
$s sample 600004 1000
set f [snack::filter map 0.5]
$s filter $f -start 400002 -end 600003
set res [$s sample 400001],[$s sample 400002],[$s sample 600003],[$s sample 600004]
$f destroy
$s destroy
set res
} {1000,500,500,1000}
test filter-2.10 {sound filter command, stereo, with -start/-end options} {
set s [snack::sound snd -channels 2]
$s length 1000000
$s sample 400001 1002 2002
$s sample 400002 1004 2004
$s sample 600003 1006 2006
$s sample 600004 1008 2008
set f [snack::filter map 0.5]
$s filter $f -start 400002 -end 600003
set res [$s sample 400001],[$s sample 400002],[$s sample 600003],[$s sample 600004]
$f destroy
$s destroy
set res
} {1002 2002,502 1002,503 1003,1008 2008}
test filter-2.11 {sound filter command, long sound, check samples} {
set s [snack::sound snd]
$s length 1000000
$s sample 500001 3000
$s sample 500002 -3000
set f [snack::filter map 0.25]
$s filter $f
set res [$s max],[$s min]
$s sample 500001 0
$s sample 500002 0
$s changed New
append res ,[$s max],[$s min]
$f destroy
$s destroy
set res
} {750,-750,0,0}
test filter-2.12 {sound filter command, long stereo sound, check samples} {
set s [snack::sound snd -channels 2]
$s length 1000000
$s sample 500001 3000 4000
$s sample 500002 -3000 -4000
set f [snack::filter map 0.25]
$s filter $f
set res [$s max],[$s min]
$s sample 500001 0 0
$s sample 500002 0 0
$s changed New
append res ,[$s max],[$s min]
$f destroy
$s destroy
set res
} {1000,-1000,0,0}
test filter-2.13 {sound filter command, long 3-chan sound, check samples} {
set s [snack::sound snd -channels 3]
$s length 1000000
$s sample 500001 3000 4000 5000
$s sample 500002 -3000 -4000 -5000
set f [snack::filter map 0.25]
$s filter $f
set res [$s max],[$s min]
$s sample 500001 0 0 0
$s sample 500002 0 0 0
$s changed New
append res ,[$s max],[$s min]
$f destroy
$s destroy
set res
} {1250,-1250,0,0}
test filter-2.14 {sound filter command, stereo, map filter reconfigured} {
set s [snack::sound snd -channels 2]
$s length 1000000
$s sample 500001 3000 4000
$s sample 500002 -3000 -4000
set f [snack::filter map 0.25]
$s filter $f
set res [$s max],[$s min]
$f configure 2.0
$s filter $f
append res ,[$s max],[$s min]
$s sample 500001 0 0
$s sample 500002 0 0
$s changed New
append res ,[$s max],[$s min]
$f destroy
$s destroy
set res
} {1000,-1000,2000,-2000,0,0}
test filter-2.15 {sound filter command, long sound, check samples} {
set s [snack::sound snd]
$s length 200000
$s sample 100001 3000
$s sample 100002 -3000
set f [snack::filter map 0.25]
$s filter $f -start 100000
set res [$s max],[$s min]
$s sample 100001 0
$s sample 100002 0
$s changed New
append res ,[$s max],[$s min]
$f destroy
$s destroy
set res
} {750,-750,0,0}
test filter-3.1 {sound filter command, with -progress option} {
set res ""
proc prog {msg frac} {
lappend ::res $frac
}
set s [snack::sound snd]
$s length 100000
set f [snack::filter map 0.5]
$s filter $f -progress prog
$f destroy
$s destroy
set res
} {0.0 0.0 1.0}
test filter-3.2 {sound filter command, missing -progress argument} {
set s [snack::sound snd -load ex1.wav]
set f [snack::filter map 0.5]
catch {$s filter $f -progress} msg
$f destroy
$s destroy
set msg
} {No argument given for -progress option}
test filter-3.3 {sound filter command, empty string -progress argument} {
set s [snack::sound snd -load ex1.wav]
set f [snack::filter map 0.5]
$s filter $f -progress ""
set res [$s sample 0]
$f destroy
$s destroy
set res
} 588
test filter-4.1 {filter compose} {
set f1 [snack::filter map 0.5]
set f2 [snack::filter map 0.5]
set cf [snack::filter compose $f1 $f2]
set res $cf
$f1 destroy
$f2 destroy
$cf destroy
set res
} compose21
test filter-4.2 {filter compose, apply three-filter composition} {
set s [snack::sound snd]
$s length 10
$s sample 5 1000
set f1 [snack::filter map 0.6]
set f2 [snack::filter map 0.5]
set f3 [snack::filter map 0.4]
set cf [snack::filter compose $f1 $f2 $f3]
$s filter $cf
set res [$s sample 5]
$f1 destroy
$f2 destroy
$f3 destroy
$cf destroy
$s destroy
set res
} {120}
test filter-4.3 {filter compose, no filter specified} {
catch {snack::filter compose} msg
set msg
} {wrong # args: should be "compose filter1 filter2 ..."}
test filter-4.4 {filter compose, only one filter specified} {
catch {snack::filter compose junk} msg
set msg
} {wrong # args: should be "compose filter1 filter2 ..."}
test filter-5.1 {echo filter, missing parameter} {
catch {snack::filter echo} msg
set msg
} {wrong # args: should be "echo inGain outGain delay1 decay1 ..."}
test filter-5.2 {echo filter, negative delay parameter} {
catch {snack::filter echo 0.0 0.0 -100 0} msg
set msg
} {Delay must be positive}
test filter-5.3 {echo filter, negative decay parameter} {
catch {snack::filter echo 0.0 0.0 100 -1} msg
set msg
} {Decay must be positive}
test filter-5.4 {echo filter, decay parameter > 1.0} {
catch {snack::filter echo 0.0 0.0 100 1.1} msg
set msg
} {Decay must be < 1.0}
test filter-5.5 {echo filter, applied to sound} {
set s [snack::sound snd -load ex1.wav]
$s length 16000
set f [snack::filter echo 0.5 0.5 100 0.5]
$s filter $f
set res [$s info]
$f destroy
$s destroy
set res
} {17600 16000 6151 -2997 Lin16 1 WAV 44}
test filter-5.6 {echo filter, applied to sound} {
set s [snack::sound snd -load ex1.wav]
$s length 16000
set f [snack::filter echo 0.5 0.5 100 0.5]
$s filter $f -continuedrain 0
set res [$s info]
$f destroy
$s destroy
set res
} {16000 16000 6151 -2997 Lin16 1 WAV 44}
test filter-5.7 {echo filter, applied to sound} {
set s [snack::sound snd -load ex1.wav]
$s length 16000
set f [snack::filter echo 0.5 0.5 100 0.5]
$s filter $f -end 15199
set res [$s info]
$f destroy
$s destroy
set res
} {16800 16000 6151 -2997 Lin16 1 WAV 44}
test filter-6.1 {generator filter, testing generation with empty sound} {
set s [snack::sound snd]
set f1 [snack::filter formant 500 50]
set f2 [snack::filter formant 1500 75]
set f3 [snack::filter formant 2500 100]
set f4 [snack::filter formant 3500 150]
set g1 [snack::filter generator 75 2500 .1 rectangle 16000]
set c1 [snack::filter compose $g1 $f1 $f2 $f3 $f4]
$s filter $c1
$s length 0
$s filter $c1
set res [$s info]
$f1 destroy
$f2 destroy
$f3 destroy
$f4 destroy
$g1 destroy
$c1 destroy
$s destroy
set res
} {16000 16000 10026 -6287 Lin16 1 RAW 0}
test filter-7.1 {iir filter, applied to sound} {
set s [snack::sound snd -load ex1.wav]
set f [snack::filter iir -numerator "0.99 -0.99" -denominator "1 -0.99"]
$s filter $f -continuedrain 0
set res [$s info]
$f destroy
$s destroy
set res
} {15820 16000 13222 -9615 Lin16 1 WAV 44}
test filter-7.2 {iir filter, applied to stereo sound} {
set s [snack::sound snd -load ex1.wav]
$s convert -channels 2
set f [snack::filter iir -numerator "0.99 -0.99" -denominator "1 -0.99"]
$s filter $f -continuedrain 0
set res [$s info]
$f destroy
$s destroy
set res
} {15820 16000 13222 -9616 Lin16 2 WAV 44}
test filter-8.1 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 100
$s sample 1 100
$s sample 2 100
$s sample 3 100
set f [snack::filter fade in linear 1]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {0,33,66,100}
test filter-8.2 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 100
$s sample 1 100
$s sample 2 100
$s sample 3 100
set f [snack::filter fade out linear 1]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {100,66,33,0}
test filter-8.3 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 100
$s sample 1 100
$s sample 2 100
$s sample 3 100
set f [snack::filter fade in linear 1 0.5]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {50,66,83,100}
test filter-8.4 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 100
$s sample 1 100
$s sample 2 100
$s sample 3 100
set f [snack::filter fade out linear 1 0.5]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {100,83,66,50}
test filter-8.5 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 10000
$s sample 1 10000
$s sample 2 10000
$s sample 3 10000
set f [snack::filter fade in exponential 1]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {0,12,356,10000}
test filter-8.6 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 10000
$s sample 1 10000
$s sample 2 10000
$s sample 3 10000
set f [snack::filter fade out exponential 1]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {10000,356,12,0}
test filter-8.7 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 10000
$s sample 1 10000
$s sample 2 10000
$s sample 3 10000
set f [snack::filter fade in exponential 1 0.5]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {5000,5006,5178,10000}
test filter-8.8 {fade filter, applied to sound} {
set s [snack::sound snd -rate 4000]
$s length 4
$s sample 0 10000
$s sample 1 10000
$s sample 2 10000
$s sample 3 10000
set f [snack::filter fade out exponential 1 0.5]
$s filter $f
set res [$s sample 0],[$s sample 1],[$s sample 2],[$s sample 3]
$f destroy
$s destroy
set res
} {10000,5178,5006,5000}
# cleanup
::tcltest::cleanupTests
return
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