From: Guillaume Pellerin <yomguy@parisson.com>
Date: Thu, 31 Oct 2013 21:51:58 +0000 (+0100)
Subject: tests/api to test/sandbox, add various tests in sandbox
X-Git-Tag: 0.5.1-0~7
X-Git-Url: https://git.parisson.com/?a=commitdiff_plain;h=770add82a8492d585b979de576241159503c017b;p=timeside.git

tests/api to test/sandbox, add various tests in sandbox
---

diff --git a/tests/api/__init__.py b/tests/api/__init__.py
deleted file mode 100644
index 40a96af..0000000
--- a/tests/api/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-# -*- coding: utf-8 -*-
diff --git a/tests/api/examples.py b/tests/api/examples.py
deleted file mode 100644
index 2c69222..0000000
--- a/tests/api/examples.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.core import Processor, implements, interfacedoc, FixedSizeInputAdapter
-from timeside.api import *
-import numpy
-
-
-class Gain(Processor):
-    implements(IEffect)
-
-    @interfacedoc
-    def __init__(self, gain=1.0):
-        self.gain = gain
-
-    @staticmethod
-    @interfacedoc
-    def id():
-        return "test_gain"
-
-    @staticmethod
-    @interfacedoc
-    def name():
-        return "Gain test effect"
-
-    def process(self, frames, eod=False):
-        return numpy.multiply(frames, self.gain), eod
diff --git a/tests/api/exempleCMMR_vamp.py b/tests/api/exempleCMMR_vamp.py
deleted file mode 100644
index 7f5864f..0000000
--- a/tests/api/exempleCMMR_vamp.py
+++ /dev/null
@@ -1,78 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Created on Fri Oct 11 13:22:37 2013
-
-@author: thomas
-"""
-
-from __future__ import division
-import timeside
-import matplotlib.pyplot as plt
-import numpy as np
-import sys
-
-#wav_file = sys.argv[-1]
-wav_file =  '/home/thomas/code/timeside/TimeSide/tests/samples/sweep.wav'
-
-# normal
-d = timeside.decoder.FileDecoder(wav_file)
-
-specgram = timeside.analyzer.Spectrogram()
-waveform = timeside.analyzer.Waveform()
-
-# Get available Vamp plugins list
-from timeside.analyzer.vamp_plugin import VampSimpleHost
-plugins_list = VampSimpleHost.get_plugins_list()
-
-# Display avalaible plugins
-print 'index \t soname \t \t identifier \t output '
-print '------ \t \t ---------- \t ------ '
-for index, line in zip(xrange(len(plugins_list)),plugins_list):
-    print '%d : %s \t %s \t %s' % (index,line[0],line[1],line[2])
-
-# Let's choose #7
-my_plugin = plugins_list[7]
-print my_plugin
-
-#
-# Vamp plugin Analyzer
-#vamp = timeside.analyzer.VampSimpleHost([my_plugin])
-vamp = timeside.analyzer.VampSimpleHost()
-
-#
-myPipe = (d | vamp | specgram | waveform).run()
-
-# Get spectrogram result and plot the spectrogram
-spec_res = specgram.results['spectrogram_analyzer']
-N = spec_res.parameters['FFT_SIZE']
-max_freq = (N // 2 + 1) / N * spec_res.frame_metadata.samplerate
-
-
-
-# Get the vamp plugin result and plot it
-for key in vamp.results.keys():
-    print vamp.results[key].data
-
-res_vamp = vamp.results['vamp_simple_host.percussiononsets.detectionfunction']
-
-plt.figure(1)
-
-plt.subplot(2,1,1)
-plt.plot(res_vamp.time, res_vamp.data)
-plt.xlabel('time in s')
-plt.grid
-plt.title(res_vamp.name)
-
-plt.subplot(2,1,2)
-plt.imshow(20 * np.log10(spec_res.data.T + 1e-6),
-           origin='lower',
-           extent=[spec_res.time[0], spec_res.time[-1], 0,
-                   max_freq],
-           aspect='auto')
-
-data = (res_vamp.data - res_vamp.data.mean()).clip(0)
-plt.plot(res_vamp.time, abs(data / data.max() * max_freq))
-
-
-plt.xlabel('time in s')
-plt.show()
\ No newline at end of file
diff --git a/tests/api/exemplesCMMR.py b/tests/api/exemplesCMMR.py
deleted file mode 100644
index 603ac9a..0000000
--- a/tests/api/exemplesCMMR.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Created on Tue Jul 16 13:04:49 2013
-
-@author: thomas
-"""
-from __future__ import division
-import timeside
-import matplotlib.pyplot as plt
-import numpy as np
-import sys
-
-if not '.wav' in sys.argv[-1]:
-    wav_file = 'toto.wav'
-else:
-    wav_file = sys.argv[-1]
-
-# normal
-decoder = timeside.decoder.FileDecoder(wav_file, start=10, duration=15)
-#e = timeside.encoder.VorbisEncoder('output.ogg', overwrite = True)
-aubio_pitch = timeside.analyzer.AubioPitch()
-aubio_temporal = timeside.analyzer.AubioTemporal()
-specgram = timeside.analyzer.Spectrogram()
-waveform = timeside.analyzer.Waveform()
-#g  =  timeside.grapher.Spectrogram()
-
-pipe = (decoder | aubio_pitch | aubio_temporal | specgram | waveform).run()
-
-pipe.results.keys()
-
-# Display Spectrogram + Aubio Pitch + Aubio Beat
-plt.figure(1)
-
-spec_res = specgram.results['spectrogram_analyzer']
-N = spec_res.parameters['FFT_SIZE']
-plt.imshow(20 * np.log10(spec_res.data.T),
-           origin='lower',
-           extent=[spec_res.time[0], spec_res.time[-1], 0,
-                   (N // 2 + 1) / N * spec_res.frame_metadata.samplerate],
-           aspect='auto')
-
-res_pitch = aubio_pitch.results['aubio_pitch']
-plt.plot(res_pitch.time, res_pitch.data)
-
-
-res_beats = aubio_temporal.results['aubio_temporal.beat']
-
-for time in res_beats.time:
-    plt.axvline(time, color='r')
-
-plt.title('Spectrogram + Aubio pitch + Aubio beat')
-plt.grid()
-
-# Display waveform + Onsets
-plt.figure(2)
-res_wave = waveform.results['waveform_analyzer']
-plt.plot(res_wave.time, res_wave.data)
-res_onsets = aubio_temporal.results['aubio_temporal.onset']
-for time in res_onsets.time:
-    plt.axvline(time, color='g')
-plt.grid()
-plt.title('Waveform + Aubio onset')
-plt.show()
diff --git a/tests/api/test_all.py b/tests/api/test_all.py
deleted file mode 100644
index b7df0ba..0000000
--- a/tests/api/test_all.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import os, sys
-import timeside
-
-path = sys.argv[-1]
-filename = path.split(os.sep)[-1]
-result_dir = '../results/'
-
-if not os.path.exists(result_dir):
-    os.makedirs(result_dir)
-
-decoder  = timeside.decoder.FileDecoder(path)
-graphers = timeside.core.processors(timeside.api.IGrapher)
-encoders = timeside.core.processors(timeside.api.IEncoder)
-analyzers = timeside.core.processors(timeside.api.IAnalyzer)
-
-grapher_list = []
-analyzer_list = []
-encoder_list = []
-
-pipe = decoder
-
-for grapher in graphers:
-    proc = grapher()
-    grapher_list.append(proc)
-    pipe = pipe | proc
-
-for analyzer in analyzers:
-    proc = analyzer()
-    analyzer_list.append(proc)
-    pipe = pipe | proc
-
-for encoder in encoders:
-    path = result_dir + os.sep + filename + '.' + encoder.file_extension()
-    proc = encoder(path, overwrite=True)
-    encoder_list.append(proc)
-    pipe = pipe | proc
-
-print pipe
-pipe.run()
-
-for grapher in grapher_list:
-    image = result_dir + os.sep + filename + '-' + grapher.id() + '.png'
-    grapher.render(image)
-
diff --git a/tests/api/test_all_graphers.py b/tests/api/test_all_graphers.py
deleted file mode 100644
index a62b855..0000000
--- a/tests/api/test_all_graphers.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import os, sys
-import timeside
-
-audio_file = sys.argv[-1]
-audio_filename = audio_file.split(os.sep)[-1]
-img_dir = '../results/img'
-
-if not os.path.exists(img_dir):
-    os.makedirs(img_dir)
-
-decoder  = timeside.decoder.FileDecoder(audio_file)
-graphers = timeside.core.processors(timeside.api.IGrapher)
-pipe = decoder
-proc_list = []
-
-for grapher in graphers:
-    proc = grapher()
-    proc_list.append(proc)
-    print proc.id()
-    pipe = pipe | proc
-
-pipe.run()
-
-for grapher in proc_list:
-    image = img_dir + os.sep + audio_filename + '-' + grapher.id() + '.png'
-    grapher.render(image)
diff --git a/tests/api/test_analyzer.py b/tests/api/test_analyzer.py
deleted file mode 100644
index ce3fa60..0000000
--- a/tests/api/test_analyzer.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import timeside
-from sys import stdout
-import os.path
-import numpy
-
-class TestAnalyzer:
-
-    graphers = timeside.get_processors(timeside.api.IGrapher)
-    decoders = timeside.get_processors(timeside.api.IDecoder)
-    encoders= timeside.get_processors(timeside.api.IEncoder)
-    analyzers = timeside.get_processors(timeside.api.IAnalyzer)
-
-    def __init__(self, path):
-        self.source = os.path.join(os.path.dirname(__file__), path)
-        print "Processing %s" % self.source
-        self.decoder  = timeside.decoder.FileDecoder(self.source)
-        print 'format: ', self.decoder.format()
-        self.pipe = self.decoder
-        self.analyzers_sub_pipe = []
-
-    def process(self):
-        for analyzer in self.analyzers:
-            sub_pipe = analyzer()
-            self.analyzers_sub_pipe.append(sub_pipe)
-            self.pipe = self.pipe | sub_pipe
-        self.pipe.run()
-
-    def results(self):
-        results = []
-        for analyzer in self.analyzers_sub_pipe:
-            if hasattr(analyzer, 'results'):
-                results.append(analyzer.results())
-            else:
-                value = analyzer.result()
-                results.append([{'name':analyzer.name(),
-                                'id':analyzer.id(),
-                                'unit':analyzer.unit(),
-                                'value':str(value)}])
-        print results
-
-
-test = TestAnalyzer('../samples/guitar.wav')
-#test = TestAnalyzer('/home/momo/music/wav/Cellar/Cellar-FinallyMix_01.wav')
-test.process()
-test.results()
-
diff --git a/tests/api/test_analyzer3.py b/tests/api/test_analyzer3.py
deleted file mode 100644
index f029392..0000000
--- a/tests/api/test_analyzer3.py
+++ /dev/null
@@ -1,34 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import timeside
-import sys
-import os.path
-import numpy
-import time
-
-
-class TestAnalyzer:
-
-    analyzer = timeside.analyzer.Level()
-
-    def __init__(self, path):
-        self.source = path
-        print "Processing %s" % self.source
-        self.decoder  = timeside.decoder.FileDecoder(self.source)
-        print 'format: ', self.decoder.format()
-        self.pipe = self.decoder
-        self.sub_pipe = self.analyzer
-
-    def process(self):
-        self.pipe = self.pipe | self.sub_pipe
-        self.pipe.run()
-
-    def results(self):
-        print {'name':self.analyzer.name(),
-                            'id':self.analyzer.id(),
-                            'unit':self.analyzer.unit(),
-                            'value':str(self.analyzer.value)}
-
-test = TestAnalyzer(sys.argv[-1])
-test.process()
-test.results()
diff --git a/tests/api/test_enc_flac.py b/tests/api/test_enc_flac.py
deleted file mode 100644
index 17e604a..0000000
--- a/tests/api/test_enc_flac.py
+++ /dev/null
@@ -1,14 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-import sys
-
-source = sys.argv[-1]
-dest = source+'.flac'
-
-decoder  = FileDecoder(source)
-encoder  = FlacEncoder(dest, overwrite=True)
-
-(decoder | encoder).run()
diff --git a/tests/api/test_enc_mp3.py b/tests/api/test_enc_mp3.py
deleted file mode 100644
index 2dea63c..0000000
--- a/tests/api/test_enc_mp3.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-import sys
-
-if len(sys.argv) < 2:
-    print 'usage:', sys.argv[0], '<inputfile>'
-    sys.exit(1)
-
-source = sys.argv[-1]
-dest = source+'.mp3'
-
-print 'converting', source, 'to', dest
-
-decoder  = FileDecoder(source)
-encoder  = Mp3Encoder(dest, overwrite=True)
-
-(decoder | encoder).run()
-
-metadata = {'TIT2': 'title',  #title2
-             'TCOM': 'composer',  #composer
-             'TPE1': 'lead creator', #lead
-             'UFID': 'identifier',  #Unique ID...
-             'TALB': 'album',  #album
-             'TCON': 'genre',  #genre
-             'TDRC': '2011', #year
-#             'COMM': 'blabla',  #comment
-             }
-
-encoder.set_metadata(metadata)
-encoder.write_metadata()
diff --git a/tests/api/test_enc_mp3_by_block.py b/tests/api/test_enc_mp3_by_block.py
deleted file mode 100644
index eb90b72..0000000
--- a/tests/api/test_enc_mp3_by_block.py
+++ /dev/null
@@ -1,33 +0,0 @@
-from numpy import vstack, zeros
-
-from timeside.decoder import *
-from timeside.encoder import *
-
-import sys, os.path
-
-def transcode(source, target):
-    decoder = FileDecoder(source)
-    decoder.setup()
-
-    channels  = decoder.channels()
-    samplerate = decoder.samplerate()
-
-    print channels, samplerate
-
-    encoder = Mp3Encoder(target)
-    encoder.setup(channels = channels, samplerate = samplerate)
-
-    totalframes = 0
-    while True:
-        frames, eod = decoder.process()
-        encoder.process(frames, eod)
-        totalframes += frames.shape[0]
-        if eod or encoder.eod:
-            break
-
-if __name__ == '__main__':
-
-    if len(sys.argv) < 3:
-        print 'needs 2 args'
-        sys.exit(1)
-    transcode(sys.argv[1], sys.argv[2])
diff --git a/tests/api/test_enc_ogg.py b/tests/api/test_enc_ogg.py
deleted file mode 100644
index b6be599..0000000
--- a/tests/api/test_enc_ogg.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-import sys
-
-if len(sys.argv) < 2:
-    print 'usage:', sys.argv[0], '<inputfile>'
-    sys.exit(1)
-
-source = sys.argv[-1]
-dest = source+'.ogg'
-
-print 'converting', source, 'to', dest
-
-decoder  = FileDecoder(source)
-encoder  = VorbisEncoder(dest, overwrite=True)
-
-(decoder | encoder).run()
diff --git a/tests/api/test_enc_webm.py b/tests/api/test_enc_webm.py
deleted file mode 100644
index 321d386..0000000
--- a/tests/api/test_enc_webm.py
+++ /dev/null
@@ -1,14 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-import sys
-
-source = sys.argv[-1]
-dest = source+'.webm'
-
-decoder  = FileDecoder(source)
-encoder  = WebMEncoder(dest)
-
-(decoder | encoder).run()
diff --git a/tests/api/test_flac.py b/tests/api/test_flac.py
deleted file mode 100644
index ee590c4..0000000
--- a/tests/api/test_flac.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-
-source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
-dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.flac")
-
-decoder  = FileDecoder(source)
-encoder  = FlacEncoder(dest)
-
-(decoder | encoder).run()
diff --git a/tests/api/test_lolevel.py b/tests/api/test_lolevel.py
deleted file mode 100644
index 421ce95..0000000
--- a/tests/api/test_lolevel.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.tests.api.examples import Gain
-from timeside.core import *
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-from timeside.api import *
-
-import sys
-if len(sys.argv) > 1:
-    source = sys.argv[1]
-else:
-    import os.path
-    source= os.path.join (os.path.dirname(__file__),  "../samples/guitar.wav")
-
-Decoder = FileDecoder
-print "Creating decoder with id=%s for: %s" % (Decoder.id(), source)
-decoder = Decoder(source)
-analyzer = MaxLevel()
-decoder.setup()
-nchannels  = decoder.channels()
-samplerate = decoder.samplerate()
-nframes = decoder.nframes()
-analyzer.setup(nchannels, samplerate)
-
-print "Stats: duration=%f, nframes=%d, nchannels=%d, samplerate=%d, resolution=%d" % (
-        nframes / float(samplerate), nframes, nchannels, samplerate, decoder.resolution())
-
-while True:
-    frames, eod = decoder.process()
-    analyzer.process(frames, eod)
-    if eod:
-        break
-
-max_level = analyzer.result()
-print "Max level: %f" % max_level
-
-destination = "../results/guitar_normalized.wav"
-Encoder = WavEncoder
-print "Creating encoder with id=%s for: %s" % (Encoder.id(), destination)
-encoder = Encoder(destination)
-
-gain = 1
-if max_level > 0:
-    gain = 0.9 / max_level
-
-effect = Gain(gain)
-
-decoder.setup()
-effect.setup(decoder.channels(), decoder.samplerate())
-encoder.setup(effect.channels(), effect.samplerate())
-
-print "Applying effect id=%s with gain=%f" % (effect.id(), gain)
-
-while True:
-    frames, eod = decoder.process()
-    encoder.process(*effect.process(frames, eod))
-    if eod:
-        break
-
diff --git a/tests/api/test_lolevel_streaming.py b/tests/api/test_lolevel_streaming.py
deleted file mode 100644
index e394f0c..0000000
--- a/tests/api/test_lolevel_streaming.py
+++ /dev/null
@@ -1,40 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.core import *
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-from timeside.api import *
-
-import sys
-if len(sys.argv) > 1:
-    source = sys.argv[1]
-else:
-    import os.path
-    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.flac")
-
-decoder = FileDecoder(source)
-print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
-decoder.setup()
-channels  = decoder.channels()
-print 'channels :', channels
-samplerate = decoder.samplerate()
-nframes = decoder.nframes()
-
-dest1 = "/tmp/test_filesink.mp3"
-dest2 = "/tmp/test_appsink.mp3"
-f = open(dest2,'w')
-
-streaming=True
-encoder = Mp3Encoder(dest1, streaming=True)
-encoder.setup(channels=channels, samplerate=samplerate)
-
-while True:
-    encoder.process(*decoder.process())
-    if streaming:
-        f.write(encoder.chunk)
-    if encoder.eod :
-        break
-
-f.close()
-print encoder.pipe
diff --git a/tests/api/test_lolevel_streaming_bad.py b/tests/api/test_lolevel_streaming_bad.py
deleted file mode 100644
index e414ead..0000000
--- a/tests/api/test_lolevel_streaming_bad.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.core import *
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-from timeside.api import *
-
-import sys
-if len(sys.argv) > 1:
-    source = sys.argv[1]
-else:
-    import os.path
-    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.wav")
-
-decoder = FileDecoder(source)
-print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
-decoder.setup()
-channels  = decoder.channels()
-print 'channels :', channels
-samplerate = decoder.samplerate()
-nframes = decoder.nframes()
-
-dest1 = "/tmp/test_filesink.mp3"
-dest2 = "/tmp/test_appsink.mp3"
-f = open(dest2,'w')
-
-streaming=True
-encoder = Mp3Encoder(dest1, streaming=True)
-encoder.setup(channels=channels, samplerate=samplerate)
-
-print encoder.pipe
-
-while True:
-    encoder.process(*decoder.process())
-    if streaming:
-        f.write(encoder.chunk)
-    if encoder.eod :
-        break
-
-f.close()
-print encoder.pipe
diff --git a/tests/api/test_lolevel_streaming_vorbis.py b/tests/api/test_lolevel_streaming_vorbis.py
deleted file mode 100644
index ecc3d3f..0000000
--- a/tests/api/test_lolevel_streaming_vorbis.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.core import *
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-from timeside.api import *
-
-import sys
-if len(sys.argv) > 1:
-    source = sys.argv[1]
-else:
-    import os.path
-    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.flac")
-
-decoder = FileDecoder(source)
-print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
-decoder.setup()
-channels  = decoder.channels()
-print 'channels :', channels
-samplerate = decoder.samplerate()
-nframes = decoder.nframes()
-
-dest1 = "/tmp/test_filesink.ogg"
-dest2 = "/tmp/test_appsink.ogg"
-f = open(dest2,'w')
-
-streaming=True
-encoder = VorbisEncoder(dest1, streaming=True)
-encoder.setup(channels=channels, samplerate=samplerate)
-
-print encoder.pipe
-
-while True:
-    encoder.process(*decoder.process())
-    if streaming:
-        f.write(encoder.chunk)
-    if encoder.eod :
-        break
-
-f.close()
-print encoder.pipe
diff --git a/tests/api/test_mp3.py b/tests/api/test_mp3.py
deleted file mode 100644
index 5d5fe22..0000000
--- a/tests/api/test_mp3.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-
-source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
-dest = os.path.join(os.path.dirname(__file__), "/tmp/sweep_wav.mp3")
-
-decoder  = FileDecoder(source)
-encoder  = Mp3Encoder(dest)
-
-(decoder | encoder).run()
-
-metadata = {'TIT2': 'title',  #title2
-             'TCOM': 'composer',  #composer
-             'TPE1': 'lead creator', #lead
-             'UFID': 'identifier',  #Unique ID...
-             'TALB': 'album',  #album
-             'TCON': 'genre',  #genre
-             'TDRC': '2011', #year
-#             'COMM': 'blabla',  #comment
-             }
-
-encoder.set_metadata(metadata)
-encoder.write_metadata()
-
diff --git a/tests/api/test_pipe.py b/tests/api/test_pipe.py
deleted file mode 100644
index 629b3e9..0000000
--- a/tests/api/test_pipe.py
+++ /dev/null
@@ -1,39 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.tests.api.examples import Gain
-from timeside.core import *
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-from timeside.api import *
-from sys import stdout
-import os.path
-import numpy
-
-source = os.path.join(os.path.dirname(__file__),  "../samples/guitar.wav")
-
-print "Normalizing %s" % source
-decoder  = FileDecoder(source)
-maxlevel = MaxLevel()
-duration = Duration()
-
-(decoder | maxlevel | duration).run()
-
-gain = 1
-if maxlevel.result() < 0:
-    gain = 0.9 / numpy.exp(maxlevel.result()/20)
-
-print "input maxlevel: %f" % maxlevel.result()
-print "gain: %f" % gain
-print "duration: %f %s" % (duration.result(), duration.unit())
-
-gain     = Gain(gain)
-encoder  = WavEncoder("../results/guitar_normalized.wav")
-
-subpipe  = gain | maxlevel
-
-(decoder | subpipe | encoder).run()
-
-print "output maxlevel: %f" % maxlevel.result()
-
-
diff --git a/tests/api/test_spectrogram.py b/tests/api/test_spectrogram.py
deleted file mode 100644
index a16874e..0000000
--- a/tests/api/test_spectrogram.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import os
-from timeside.core import *
-from timeside.api import *
-from timeside.decoder import *
-from timeside.grapher import *
-
-sample_dir = '../samples'
-img_dir = '../results/img'
-if not os.path.exists(img_dir):
-    os.mkdir(img_dir)
-
-test_dict = {'sweep.wav': 'spec_wav.png',
-            'sweep.flac': 'spec_flac.png',
-            'sweep.ogg': 'spec_ogg.png',
-            'sweep.mp3': 'spec_mp3.png',
-            }
-
-for source, image in test_dict.iteritems():
-    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
-    image = img_dir + os.sep + image
-    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
-    decoder  = FileDecoder(audio)
-    spectrogram = Spectrogram()
-    (decoder | spectrogram).run()
-    print 'frames per pixel = ', spectrogram.samples_per_pixel
-    print "render spectrogram to: %s" %  image
-    spectrogram.render(image)
-
-
-
diff --git a/tests/api/test_vorbis.py b/tests/api/test_vorbis.py
deleted file mode 100644
index 53818cd..0000000
--- a/tests/api/test_vorbis.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.encoder import *
-import os.path
-
-source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
-dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.ogg")
-
-decoder  = FileDecoder(source)
-encoder  = VorbisEncoder(dest)
-
-(decoder | encoder).run()
diff --git a/tests/api/test_wav.py b/tests/api/test_wav.py
deleted file mode 100644
index 077a01e..0000000
--- a/tests/api/test_wav.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from timeside.decoder import *
-from timeside.analyzer import *
-from timeside.encoder import *
-
-import os.path
-source = os.path.join(os.path.dirname(__file__),  "../samples/sweep.wav")
-dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.wav")
-
-decoder  = FileDecoder(source)
-encoder  = WavEncoder(dest)
-
-(decoder | encoder).run()
-
diff --git a/tests/api/test_waveform.py b/tests/api/test_waveform.py
deleted file mode 100644
index a028df5..0000000
--- a/tests/api/test_waveform.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import os
-from timeside.core import *
-from timeside.api import *
-from timeside.decoder import *
-from timeside.grapher import *
-
-sample_dir = '../samples'
-img_dir = '../results/img'
-if not os.path.exists(img_dir):
-    os.makedirs(img_dir)
-
-test_dict = {'sweep.wav': 'waveform_wav.png',
-            'sweep.flac': 'waveform_flac.png',
-            'sweep.ogg': 'waveform_ogg.png',
-            'sweep.mp3': 'waveform_mp3.png',
-            }
-
-for source, image in test_dict.iteritems():
-    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
-    image = img_dir + os.sep + image
-    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
-    decoder  = FileDecoder(audio)
-    waveform = Waveform(width=1024, height=256, bg_color=(255,255,255), color_scheme='default')
-    (decoder | waveform).run()
-    print 'frames per pixel = ', waveform.samples_per_pixel
-    print "render waveform to: %s" %  image
-    waveform.render(image)
diff --git a/tests/sandbox/__init__.py b/tests/sandbox/__init__.py
new file mode 100644
index 0000000..40a96af
--- /dev/null
+++ b/tests/sandbox/__init__.py
@@ -0,0 +1 @@
+# -*- coding: utf-8 -*-
diff --git a/tests/sandbox/examples.py b/tests/sandbox/examples.py
new file mode 100644
index 0000000..2c69222
--- /dev/null
+++ b/tests/sandbox/examples.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+from timeside.core import Processor, implements, interfacedoc, FixedSizeInputAdapter
+from timeside.api import *
+import numpy
+
+
+class Gain(Processor):
+    implements(IEffect)
+
+    @interfacedoc
+    def __init__(self, gain=1.0):
+        self.gain = gain
+
+    @staticmethod
+    @interfacedoc
+    def id():
+        return "test_gain"
+
+    @staticmethod
+    @interfacedoc
+    def name():
+        return "Gain test effect"
+
+    def process(self, frames, eod=False):
+        return numpy.multiply(frames, self.gain), eod
diff --git a/tests/sandbox/exempleCMMR_vamp.py b/tests/sandbox/exempleCMMR_vamp.py
new file mode 100644
index 0000000..7f5864f
--- /dev/null
+++ b/tests/sandbox/exempleCMMR_vamp.py
@@ -0,0 +1,78 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Fri Oct 11 13:22:37 2013
+
+@author: thomas
+"""
+
+from __future__ import division
+import timeside
+import matplotlib.pyplot as plt
+import numpy as np
+import sys
+
+#wav_file = sys.argv[-1]
+wav_file =  '/home/thomas/code/timeside/TimeSide/tests/samples/sweep.wav'
+
+# normal
+d = timeside.decoder.FileDecoder(wav_file)
+
+specgram = timeside.analyzer.Spectrogram()
+waveform = timeside.analyzer.Waveform()
+
+# Get available Vamp plugins list
+from timeside.analyzer.vamp_plugin import VampSimpleHost
+plugins_list = VampSimpleHost.get_plugins_list()
+
+# Display avalaible plugins
+print 'index \t soname \t \t identifier \t output '
+print '------ \t \t ---------- \t ------ '
+for index, line in zip(xrange(len(plugins_list)),plugins_list):
+    print '%d : %s \t %s \t %s' % (index,line[0],line[1],line[2])
+
+# Let's choose #7
+my_plugin = plugins_list[7]
+print my_plugin
+
+#
+# Vamp plugin Analyzer
+#vamp = timeside.analyzer.VampSimpleHost([my_plugin])
+vamp = timeside.analyzer.VampSimpleHost()
+
+#
+myPipe = (d | vamp | specgram | waveform).run()
+
+# Get spectrogram result and plot the spectrogram
+spec_res = specgram.results['spectrogram_analyzer']
+N = spec_res.parameters['FFT_SIZE']
+max_freq = (N // 2 + 1) / N * spec_res.frame_metadata.samplerate
+
+
+
+# Get the vamp plugin result and plot it
+for key in vamp.results.keys():
+    print vamp.results[key].data
+
+res_vamp = vamp.results['vamp_simple_host.percussiononsets.detectionfunction']
+
+plt.figure(1)
+
+plt.subplot(2,1,1)
+plt.plot(res_vamp.time, res_vamp.data)
+plt.xlabel('time in s')
+plt.grid
+plt.title(res_vamp.name)
+
+plt.subplot(2,1,2)
+plt.imshow(20 * np.log10(spec_res.data.T + 1e-6),
+           origin='lower',
+           extent=[spec_res.time[0], spec_res.time[-1], 0,
+                   max_freq],
+           aspect='auto')
+
+data = (res_vamp.data - res_vamp.data.mean()).clip(0)
+plt.plot(res_vamp.time, abs(data / data.max() * max_freq))
+
+
+plt.xlabel('time in s')
+plt.show()
\ No newline at end of file
diff --git a/tests/sandbox/exemplesCMMR.py b/tests/sandbox/exemplesCMMR.py
new file mode 100644
index 0000000..603ac9a
--- /dev/null
+++ b/tests/sandbox/exemplesCMMR.py
@@ -0,0 +1,63 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Jul 16 13:04:49 2013
+
+@author: thomas
+"""
+from __future__ import division
+import timeside
+import matplotlib.pyplot as plt
+import numpy as np
+import sys
+
+if not '.wav' in sys.argv[-1]:
+    wav_file = 'toto.wav'
+else:
+    wav_file = sys.argv[-1]
+
+# normal
+decoder = timeside.decoder.FileDecoder(wav_file, start=10, duration=15)
+#e = timeside.encoder.VorbisEncoder('output.ogg', overwrite = True)
+aubio_pitch = timeside.analyzer.AubioPitch()
+aubio_temporal = timeside.analyzer.AubioTemporal()
+specgram = timeside.analyzer.Spectrogram()
+waveform = timeside.analyzer.Waveform()
+#g  =  timeside.grapher.Spectrogram()
+
+pipe = (decoder | aubio_pitch | aubio_temporal | specgram | waveform).run()
+
+pipe.results.keys()
+
+# Display Spectrogram + Aubio Pitch + Aubio Beat
+plt.figure(1)
+
+spec_res = specgram.results['spectrogram_analyzer']
+N = spec_res.parameters['FFT_SIZE']
+plt.imshow(20 * np.log10(spec_res.data.T),
+           origin='lower',
+           extent=[spec_res.time[0], spec_res.time[-1], 0,
+                   (N // 2 + 1) / N * spec_res.frame_metadata.samplerate],
+           aspect='auto')
+
+res_pitch = aubio_pitch.results['aubio_pitch']
+plt.plot(res_pitch.time, res_pitch.data)
+
+
+res_beats = aubio_temporal.results['aubio_temporal.beat']
+
+for time in res_beats.time:
+    plt.axvline(time, color='r')
+
+plt.title('Spectrogram + Aubio pitch + Aubio beat')
+plt.grid()
+
+# Display waveform + Onsets
+plt.figure(2)
+res_wave = waveform.results['waveform_analyzer']
+plt.plot(res_wave.time, res_wave.data)
+res_onsets = aubio_temporal.results['aubio_temporal.onset']
+for time in res_onsets.time:
+    plt.axvline(time, color='g')
+plt.grid()
+plt.title('Waveform + Aubio onset')
+plt.show()
diff --git a/tests/sandbox/test_all.py b/tests/sandbox/test_all.py
new file mode 100644
index 0000000..b7df0ba
--- /dev/null
+++ b/tests/sandbox/test_all.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+
+import os, sys
+import timeside
+
+path = sys.argv[-1]
+filename = path.split(os.sep)[-1]
+result_dir = '../results/'
+
+if not os.path.exists(result_dir):
+    os.makedirs(result_dir)
+
+decoder  = timeside.decoder.FileDecoder(path)
+graphers = timeside.core.processors(timeside.api.IGrapher)
+encoders = timeside.core.processors(timeside.api.IEncoder)
+analyzers = timeside.core.processors(timeside.api.IAnalyzer)
+
+grapher_list = []
+analyzer_list = []
+encoder_list = []
+
+pipe = decoder
+
+for grapher in graphers:
+    proc = grapher()
+    grapher_list.append(proc)
+    pipe = pipe | proc
+
+for analyzer in analyzers:
+    proc = analyzer()
+    analyzer_list.append(proc)
+    pipe = pipe | proc
+
+for encoder in encoders:
+    path = result_dir + os.sep + filename + '.' + encoder.file_extension()
+    proc = encoder(path, overwrite=True)
+    encoder_list.append(proc)
+    pipe = pipe | proc
+
+print pipe
+pipe.run()
+
+for grapher in grapher_list:
+    image = result_dir + os.sep + filename + '-' + grapher.id() + '.png'
+    grapher.render(image)
+
diff --git a/tests/sandbox/test_all_graphers.py b/tests/sandbox/test_all_graphers.py
new file mode 100644
index 0000000..a62b855
--- /dev/null
+++ b/tests/sandbox/test_all_graphers.py
@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+
+import os, sys
+import timeside
+
+audio_file = sys.argv[-1]
+audio_filename = audio_file.split(os.sep)[-1]
+img_dir = '../results/img'
+
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+decoder  = timeside.decoder.FileDecoder(audio_file)
+graphers = timeside.core.processors(timeside.api.IGrapher)
+pipe = decoder
+proc_list = []
+
+for grapher in graphers:
+    proc = grapher()
+    proc_list.append(proc)
+    print proc.id()
+    pipe = pipe | proc
+
+pipe.run()
+
+for grapher in proc_list:
+    image = img_dir + os.sep + audio_filename + '-' + grapher.id() + '.png'
+    grapher.render(image)
diff --git a/tests/sandbox/test_analyzer.py b/tests/sandbox/test_analyzer.py
new file mode 100644
index 0000000..ce3fa60
--- /dev/null
+++ b/tests/sandbox/test_analyzer.py
@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+
+import timeside
+from sys import stdout
+import os.path
+import numpy
+
+class TestAnalyzer:
+
+    graphers = timeside.get_processors(timeside.api.IGrapher)
+    decoders = timeside.get_processors(timeside.api.IDecoder)
+    encoders= timeside.get_processors(timeside.api.IEncoder)
+    analyzers = timeside.get_processors(timeside.api.IAnalyzer)
+
+    def __init__(self, path):
+        self.source = os.path.join(os.path.dirname(__file__), path)
+        print "Processing %s" % self.source
+        self.decoder  = timeside.decoder.FileDecoder(self.source)
+        print 'format: ', self.decoder.format()
+        self.pipe = self.decoder
+        self.analyzers_sub_pipe = []
+
+    def process(self):
+        for analyzer in self.analyzers:
+            sub_pipe = analyzer()
+            self.analyzers_sub_pipe.append(sub_pipe)
+            self.pipe = self.pipe | sub_pipe
+        self.pipe.run()
+
+    def results(self):
+        results = []
+        for analyzer in self.analyzers_sub_pipe:
+            if hasattr(analyzer, 'results'):
+                results.append(analyzer.results())
+            else:
+                value = analyzer.result()
+                results.append([{'name':analyzer.name(),
+                                'id':analyzer.id(),
+                                'unit':analyzer.unit(),
+                                'value':str(value)}])
+        print results
+
+
+test = TestAnalyzer('../samples/guitar.wav')
+#test = TestAnalyzer('/home/momo/music/wav/Cellar/Cellar-FinallyMix_01.wav')
+test.process()
+test.results()
+
diff --git a/tests/sandbox/test_analyzer3.py b/tests/sandbox/test_analyzer3.py
new file mode 100644
index 0000000..f029392
--- /dev/null
+++ b/tests/sandbox/test_analyzer3.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+import timeside
+import sys
+import os.path
+import numpy
+import time
+
+
+class TestAnalyzer:
+
+    analyzer = timeside.analyzer.Level()
+
+    def __init__(self, path):
+        self.source = path
+        print "Processing %s" % self.source
+        self.decoder  = timeside.decoder.FileDecoder(self.source)
+        print 'format: ', self.decoder.format()
+        self.pipe = self.decoder
+        self.sub_pipe = self.analyzer
+
+    def process(self):
+        self.pipe = self.pipe | self.sub_pipe
+        self.pipe.run()
+
+    def results(self):
+        print {'name':self.analyzer.name(),
+                            'id':self.analyzer.id(),
+                            'unit':self.analyzer.unit(),
+                            'value':str(self.analyzer.value)}
+
+test = TestAnalyzer(sys.argv[-1])
+test.process()
+test.results()
diff --git a/tests/sandbox/test_analyzer4.py b/tests/sandbox/test_analyzer4.py
new file mode 100644
index 0000000..440fc00
--- /dev/null
+++ b/tests/sandbox/test_analyzer4.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import timeside
+import sys
+import os.path
+import numpy
+import time
+
+
+class TestAnalyzer:
+
+    analyzer = timeside.analyzer.Level()
+
+    def __init__(self, path):
+        self.source = path
+        print "Processing %s" % self.source
+        self.decoder  = timeside.decoder.FileDecoder(self.source)
+        print 'format: ', self.decoder.format()
+        self.pipe = self.decoder
+        self.sub_pipe = self.analyzer
+
+    def process(self):
+        self.pipe = self.pipe | self.sub_pipe
+        self.pipe.run()
+
+    def results(self):
+        print self.sub_pipe.results()
+
+test = TestAnalyzer(sys.argv[-1])
+test.process()
+test.results()
diff --git a/tests/sandbox/test_aubio_bpm.py b/tests/sandbox/test_aubio_bpm.py
new file mode 100644
index 0000000..9c0e84a
--- /dev/null
+++ b/tests/sandbox/test_aubio_bpm.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+import sys
+sys.path.append('/home/momo/dev/aubio/interfaces/python/build/lib.linux-x86_64-2.6/')
+
+import timeside
+
+decoder  =  timeside.decoder.FileDecoder('/home/momo/music_local/Kavinsky - Nightcall EP/01 Nightcall (Feat. Lovefoxxx).mp3')
+analyzer = timeside.analyzer.AubioBPM()
+(decoder | analyzer).run()
+print analyzer.result()
+
+
diff --git a/tests/sandbox/test_aubio_onsetrate.py b/tests/sandbox/test_aubio_onsetrate.py
new file mode 100644
index 0000000..1a812eb
--- /dev/null
+++ b/tests/sandbox/test_aubio_onsetrate.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+
+import timeside
+
+decoder  =  timeside.decoder.FileDecoder('/home/momo/music_local/Kavinsky - Nightcall EP/01 Nightcall (Feat. Lovefoxxx).mp3')
+analyzer = timeside.analyzer.AubioOnsetRate()
+(decoder | analyzer).run()
+print analyzer.result()
+
+
diff --git a/tests/sandbox/test_enc_flac.py b/tests/sandbox/test_enc_flac.py
new file mode 100644
index 0000000..17e604a
--- /dev/null
+++ b/tests/sandbox/test_enc_flac.py
@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+import sys
+
+source = sys.argv[-1]
+dest = source+'.flac'
+
+decoder  = FileDecoder(source)
+encoder  = FlacEncoder(dest, overwrite=True)
+
+(decoder | encoder).run()
diff --git a/tests/sandbox/test_enc_mp3.py b/tests/sandbox/test_enc_mp3.py
new file mode 100644
index 0000000..2dea63c
--- /dev/null
+++ b/tests/sandbox/test_enc_mp3.py
@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+import sys
+
+if len(sys.argv) < 2:
+    print 'usage:', sys.argv[0], '<inputfile>'
+    sys.exit(1)
+
+source = sys.argv[-1]
+dest = source+'.mp3'
+
+print 'converting', source, 'to', dest
+
+decoder  = FileDecoder(source)
+encoder  = Mp3Encoder(dest, overwrite=True)
+
+(decoder | encoder).run()
+
+metadata = {'TIT2': 'title',  #title2
+             'TCOM': 'composer',  #composer
+             'TPE1': 'lead creator', #lead
+             'UFID': 'identifier',  #Unique ID...
+             'TALB': 'album',  #album
+             'TCON': 'genre',  #genre
+             'TDRC': '2011', #year
+#             'COMM': 'blabla',  #comment
+             }
+
+encoder.set_metadata(metadata)
+encoder.write_metadata()
diff --git a/tests/sandbox/test_enc_mp3_by_block.py b/tests/sandbox/test_enc_mp3_by_block.py
new file mode 100644
index 0000000..eb90b72
--- /dev/null
+++ b/tests/sandbox/test_enc_mp3_by_block.py
@@ -0,0 +1,33 @@
+from numpy import vstack, zeros
+
+from timeside.decoder import *
+from timeside.encoder import *
+
+import sys, os.path
+
+def transcode(source, target):
+    decoder = FileDecoder(source)
+    decoder.setup()
+
+    channels  = decoder.channels()
+    samplerate = decoder.samplerate()
+
+    print channels, samplerate
+
+    encoder = Mp3Encoder(target)
+    encoder.setup(channels = channels, samplerate = samplerate)
+
+    totalframes = 0
+    while True:
+        frames, eod = decoder.process()
+        encoder.process(frames, eod)
+        totalframes += frames.shape[0]
+        if eod or encoder.eod:
+            break
+
+if __name__ == '__main__':
+
+    if len(sys.argv) < 3:
+        print 'needs 2 args'
+        sys.exit(1)
+    transcode(sys.argv[1], sys.argv[2])
diff --git a/tests/sandbox/test_enc_ogg.py b/tests/sandbox/test_enc_ogg.py
new file mode 100644
index 0000000..b6be599
--- /dev/null
+++ b/tests/sandbox/test_enc_ogg.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+import sys
+
+if len(sys.argv) < 2:
+    print 'usage:', sys.argv[0], '<inputfile>'
+    sys.exit(1)
+
+source = sys.argv[-1]
+dest = source+'.ogg'
+
+print 'converting', source, 'to', dest
+
+decoder  = FileDecoder(source)
+encoder  = VorbisEncoder(dest, overwrite=True)
+
+(decoder | encoder).run()
diff --git a/tests/sandbox/test_enc_webm.py b/tests/sandbox/test_enc_webm.py
new file mode 100644
index 0000000..321d386
--- /dev/null
+++ b/tests/sandbox/test_enc_webm.py
@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+import sys
+
+source = sys.argv[-1]
+dest = source+'.webm'
+
+decoder  = FileDecoder(source)
+encoder  = WebMEncoder(dest)
+
+(decoder | encoder).run()
diff --git a/tests/sandbox/test_flac.py b/tests/sandbox/test_flac.py
new file mode 100644
index 0000000..ee590c4
--- /dev/null
+++ b/tests/sandbox/test_flac.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+
+source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
+dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.flac")
+
+decoder  = FileDecoder(source)
+encoder  = FlacEncoder(dest)
+
+(decoder | encoder).run()
diff --git a/tests/sandbox/test_lolevel.py b/tests/sandbox/test_lolevel.py
new file mode 100644
index 0000000..421ce95
--- /dev/null
+++ b/tests/sandbox/test_lolevel.py
@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+
+from timeside.tests.api.examples import Gain
+from timeside.core import *
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+from timeside.api import *
+
+import sys
+if len(sys.argv) > 1:
+    source = sys.argv[1]
+else:
+    import os.path
+    source= os.path.join (os.path.dirname(__file__),  "../samples/guitar.wav")
+
+Decoder = FileDecoder
+print "Creating decoder with id=%s for: %s" % (Decoder.id(), source)
+decoder = Decoder(source)
+analyzer = MaxLevel()
+decoder.setup()
+nchannels  = decoder.channels()
+samplerate = decoder.samplerate()
+nframes = decoder.nframes()
+analyzer.setup(nchannels, samplerate)
+
+print "Stats: duration=%f, nframes=%d, nchannels=%d, samplerate=%d, resolution=%d" % (
+        nframes / float(samplerate), nframes, nchannels, samplerate, decoder.resolution())
+
+while True:
+    frames, eod = decoder.process()
+    analyzer.process(frames, eod)
+    if eod:
+        break
+
+max_level = analyzer.result()
+print "Max level: %f" % max_level
+
+destination = "../results/guitar_normalized.wav"
+Encoder = WavEncoder
+print "Creating encoder with id=%s for: %s" % (Encoder.id(), destination)
+encoder = Encoder(destination)
+
+gain = 1
+if max_level > 0:
+    gain = 0.9 / max_level
+
+effect = Gain(gain)
+
+decoder.setup()
+effect.setup(decoder.channels(), decoder.samplerate())
+encoder.setup(effect.channels(), effect.samplerate())
+
+print "Applying effect id=%s with gain=%f" % (effect.id(), gain)
+
+while True:
+    frames, eod = decoder.process()
+    encoder.process(*effect.process(frames, eod))
+    if eod:
+        break
+
diff --git a/tests/sandbox/test_lolevel_streaming.py b/tests/sandbox/test_lolevel_streaming.py
new file mode 100644
index 0000000..e394f0c
--- /dev/null
+++ b/tests/sandbox/test_lolevel_streaming.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+
+from timeside.core import *
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+from timeside.api import *
+
+import sys
+if len(sys.argv) > 1:
+    source = sys.argv[1]
+else:
+    import os.path
+    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.flac")
+
+decoder = FileDecoder(source)
+print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
+decoder.setup()
+channels  = decoder.channels()
+print 'channels :', channels
+samplerate = decoder.samplerate()
+nframes = decoder.nframes()
+
+dest1 = "/tmp/test_filesink.mp3"
+dest2 = "/tmp/test_appsink.mp3"
+f = open(dest2,'w')
+
+streaming=True
+encoder = Mp3Encoder(dest1, streaming=True)
+encoder.setup(channels=channels, samplerate=samplerate)
+
+while True:
+    encoder.process(*decoder.process())
+    if streaming:
+        f.write(encoder.chunk)
+    if encoder.eod :
+        break
+
+f.close()
+print encoder.pipe
diff --git a/tests/sandbox/test_lolevel_streaming_bad.py b/tests/sandbox/test_lolevel_streaming_bad.py
new file mode 100644
index 0000000..e414ead
--- /dev/null
+++ b/tests/sandbox/test_lolevel_streaming_bad.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+
+from timeside.core import *
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+from timeside.api import *
+
+import sys
+if len(sys.argv) > 1:
+    source = sys.argv[1]
+else:
+    import os.path
+    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.wav")
+
+decoder = FileDecoder(source)
+print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
+decoder.setup()
+channels  = decoder.channels()
+print 'channels :', channels
+samplerate = decoder.samplerate()
+nframes = decoder.nframes()
+
+dest1 = "/tmp/test_filesink.mp3"
+dest2 = "/tmp/test_appsink.mp3"
+f = open(dest2,'w')
+
+streaming=True
+encoder = Mp3Encoder(dest1, streaming=True)
+encoder.setup(channels=channels, samplerate=samplerate)
+
+print encoder.pipe
+
+while True:
+    encoder.process(*decoder.process())
+    if streaming:
+        f.write(encoder.chunk)
+    if encoder.eod :
+        break
+
+f.close()
+print encoder.pipe
diff --git a/tests/sandbox/test_lolevel_streaming_vorbis.py b/tests/sandbox/test_lolevel_streaming_vorbis.py
new file mode 100644
index 0000000..ecc3d3f
--- /dev/null
+++ b/tests/sandbox/test_lolevel_streaming_vorbis.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+
+from timeside.core import *
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+from timeside.api import *
+
+import sys
+if len(sys.argv) > 1:
+    source = sys.argv[1]
+else:
+    import os.path
+    source= os.path.join (os.path.dirname(__file__),  "../samples/sweep.flac")
+
+decoder = FileDecoder(source)
+print "Creating decoder with id=%s for: %s" % (decoder.id(), source)
+decoder.setup()
+channels  = decoder.channels()
+print 'channels :', channels
+samplerate = decoder.samplerate()
+nframes = decoder.nframes()
+
+dest1 = "/tmp/test_filesink.ogg"
+dest2 = "/tmp/test_appsink.ogg"
+f = open(dest2,'w')
+
+streaming=True
+encoder = VorbisEncoder(dest1, streaming=True)
+encoder.setup(channels=channels, samplerate=samplerate)
+
+print encoder.pipe
+
+while True:
+    encoder.process(*decoder.process())
+    if streaming:
+        f.write(encoder.chunk)
+    if encoder.eod :
+        break
+
+f.close()
+print encoder.pipe
diff --git a/tests/sandbox/test_mp3.py b/tests/sandbox/test_mp3.py
new file mode 100644
index 0000000..5d5fe22
--- /dev/null
+++ b/tests/sandbox/test_mp3.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+
+source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
+dest = os.path.join(os.path.dirname(__file__), "/tmp/sweep_wav.mp3")
+
+decoder  = FileDecoder(source)
+encoder  = Mp3Encoder(dest)
+
+(decoder | encoder).run()
+
+metadata = {'TIT2': 'title',  #title2
+             'TCOM': 'composer',  #composer
+             'TPE1': 'lead creator', #lead
+             'UFID': 'identifier',  #Unique ID...
+             'TALB': 'album',  #album
+             'TCON': 'genre',  #genre
+             'TDRC': '2011', #year
+#             'COMM': 'blabla',  #comment
+             }
+
+encoder.set_metadata(metadata)
+encoder.write_metadata()
+
diff --git a/tests/sandbox/test_mp3_2.py b/tests/sandbox/test_mp3_2.py
new file mode 100644
index 0000000..5d5fe22
--- /dev/null
+++ b/tests/sandbox/test_mp3_2.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+
+source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
+dest = os.path.join(os.path.dirname(__file__), "/tmp/sweep_wav.mp3")
+
+decoder  = FileDecoder(source)
+encoder  = Mp3Encoder(dest)
+
+(decoder | encoder).run()
+
+metadata = {'TIT2': 'title',  #title2
+             'TCOM': 'composer',  #composer
+             'TPE1': 'lead creator', #lead
+             'UFID': 'identifier',  #Unique ID...
+             'TALB': 'album',  #album
+             'TCON': 'genre',  #genre
+             'TDRC': '2011', #year
+#             'COMM': 'blabla',  #comment
+             }
+
+encoder.set_metadata(metadata)
+encoder.write_metadata()
+
diff --git a/tests/sandbox/test_mp3_3.py b/tests/sandbox/test_mp3_3.py
new file mode 100644
index 0000000..2d74b37
--- /dev/null
+++ b/tests/sandbox/test_mp3_3.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+
+import time
+import timeside
+
+metadata = {'TIT2': 'title',  #title2
+             'TCOM': 'composer',  #composer
+             'TPE1': 'lead creator', #lead
+             'UFID': 'identifier',  #Unique ID...
+             'TALB': 'album',  #album
+             'TCON': 'genre',  #genre
+             'TDRC': '2011', #year
+#             'COMM': 'blabla',  #comment
+             }
+
+decoder  =  timeside.decoder.FileDecoder('/home/momo/dev/telemeta/sandboxes/sandbox_lam/media/items/2012/09/26/LAM_ETUD_01_01_004.wav')
+
+encoder  =  timeside.encoder.Mp3Encoder('/tmp/output.mp3')
+encoder.set_metadata(metadata)
+
+(decoder | encoder).run()
+
diff --git a/tests/sandbox/test_parent.py b/tests/sandbox/test_parent.py
new file mode 100644
index 0000000..4852464
--- /dev/null
+++ b/tests/sandbox/test_parent.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+import timeside
+import os.path
+
+source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
+
+d = timeside.decoder.FileDecoder(source)
+a  = timeside.analyzer.OnsetDetectionFunction()
+
+(d | a).run()
+
+print a.results
\ No newline at end of file
diff --git a/tests/sandbox/test_pipe.py b/tests/sandbox/test_pipe.py
new file mode 100644
index 0000000..629b3e9
--- /dev/null
+++ b/tests/sandbox/test_pipe.py
@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+
+from timeside.tests.api.examples import Gain
+from timeside.core import *
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+from timeside.api import *
+from sys import stdout
+import os.path
+import numpy
+
+source = os.path.join(os.path.dirname(__file__),  "../samples/guitar.wav")
+
+print "Normalizing %s" % source
+decoder  = FileDecoder(source)
+maxlevel = MaxLevel()
+duration = Duration()
+
+(decoder | maxlevel | duration).run()
+
+gain = 1
+if maxlevel.result() < 0:
+    gain = 0.9 / numpy.exp(maxlevel.result()/20)
+
+print "input maxlevel: %f" % maxlevel.result()
+print "gain: %f" % gain
+print "duration: %f %s" % (duration.result(), duration.unit())
+
+gain     = Gain(gain)
+encoder  = WavEncoder("../results/guitar_normalized.wav")
+
+subpipe  = gain | maxlevel
+
+(decoder | subpipe | encoder).run()
+
+print "output maxlevel: %f" % maxlevel.result()
+
+
diff --git a/tests/sandbox/test_results.py b/tests/sandbox/test_results.py
new file mode 100644
index 0000000..f489b38
--- /dev/null
+++ b/tests/sandbox/test_results.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+import timeside.decoder
+import timeside.analyzer
+
+
+decoder  =  timeside.decoder.FileDecoder('/home/momo/dev/timeside/timeside/tests/samples/sweep.wav')
+analyzer = timeside.analyzer.AubioMelEnergy()
+(decoder | analyzer).run()
+
+print len(analyzer.results())
+print len(analyzer.results())
+print len(analyzer.results())
+
+
+
diff --git a/tests/sandbox/test_spectrogram.py b/tests/sandbox/test_spectrogram.py
new file mode 100644
index 0000000..a16874e
--- /dev/null
+++ b/tests/sandbox/test_spectrogram.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.mkdir(img_dir)
+
+test_dict = {'sweep.wav': 'spec_wav.png',
+            'sweep.flac': 'spec_flac.png',
+            'sweep.ogg': 'spec_ogg.png',
+            'sweep.mp3': 'spec_mp3.png',
+            }
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    spectrogram = Spectrogram()
+    (decoder | spectrogram).run()
+    print 'frames per pixel = ', spectrogram.samples_per_pixel
+    print "render spectrogram to: %s" %  image
+    spectrogram.render(image)
+
+
+
diff --git a/tests/sandbox/test_spectrogram2.py b/tests/sandbox/test_spectrogram2.py
new file mode 100644
index 0000000..762f5ac
--- /dev/null
+++ b/tests/sandbox/test_spectrogram2.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.mkdir(img_dir)
+
+test_dict = {'sweep.wav': 'spec_wav.png',}
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    spectrogram = SpectrogramLinear()
+    (decoder | spectrogram).run()
+    print 'frames per pixel = ', spectrogram.samples_per_pixel
+    print "render spectrogram to: %s" %  image
+    spectrogram.render(image)
+
+
+
diff --git a/tests/sandbox/test_spectrogram3.py b/tests/sandbox/test_spectrogram3.py
new file mode 100644
index 0000000..19fcf9b
--- /dev/null
+++ b/tests/sandbox/test_spectrogram3.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import os
+import timeside
+
+audio_dir = '/home/momo/music_local/test/aboul/wav/'
+audio_file = 'aboul.wav'
+audio_path = audio_dir + audio_file
+img_dir = '../results/img'
+
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+decoder  = timeside.decoder.FileDecoder(audio_path)
+analyzers = timeside.core.processors(timeside.api.IAnalyzer)
+pipe = decoder
+
+for analyzer in analyzers:
+    subpipe = analyzer()
+    analyzers_sub.append(subpipe)
+    pipe = pipe | subpipe
+
+image = img_dir + os.sep + source + '.png'
+print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+
+spectrogram = SpectrogramLinear(width=10240, height=512, bg_color=(0,0,0), color_scheme='default')
+(decoder | spectrogram).run()
+print 'frames per pixel = ', spectrogram.samples_per_pixel
+print "render spectrogram to: %s" %  image
+spectrogram.render(image)
+
diff --git a/tests/sandbox/test_vorbis.py b/tests/sandbox/test_vorbis.py
new file mode 100644
index 0000000..53818cd
--- /dev/null
+++ b/tests/sandbox/test_vorbis.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.encoder import *
+import os.path
+
+source = os.path.join(os.path.dirname(__file__), "../samples/sweep.wav")
+dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.ogg")
+
+decoder  = FileDecoder(source)
+encoder  = VorbisEncoder(dest)
+
+(decoder | encoder).run()
diff --git a/tests/sandbox/test_wav.py b/tests/sandbox/test_wav.py
new file mode 100644
index 0000000..077a01e
--- /dev/null
+++ b/tests/sandbox/test_wav.py
@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+from timeside.decoder import *
+from timeside.analyzer import *
+from timeside.encoder import *
+
+import os.path
+source = os.path.join(os.path.dirname(__file__),  "../samples/sweep.wav")
+dest = os.path.join(os.path.dirname(__file__), "../results/sweep_wav.wav")
+
+decoder  = FileDecoder(source)
+encoder  = WavEncoder(dest)
+
+(decoder | encoder).run()
+
diff --git a/tests/sandbox/test_waveform.py b/tests/sandbox/test_waveform.py
new file mode 100644
index 0000000..a028df5
--- /dev/null
+++ b/tests/sandbox/test_waveform.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+test_dict = {'sweep.wav': 'waveform_wav.png',
+            'sweep.flac': 'waveform_flac.png',
+            'sweep.ogg': 'waveform_ogg.png',
+            'sweep.mp3': 'waveform_mp3.png',
+            }
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    waveform = Waveform(width=1024, height=256, bg_color=(255,255,255), color_scheme='default')
+    (decoder | waveform).run()
+    print 'frames per pixel = ', waveform.samples_per_pixel
+    print "render waveform to: %s" %  image
+    waveform.render(image)
diff --git a/tests/sandbox/test_waveform3.py b/tests/sandbox/test_waveform3.py
new file mode 100644
index 0000000..74603cb
--- /dev/null
+++ b/tests/sandbox/test_waveform3.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '/home/momo/music_local/Isabelle Aboulker/Mon imagier des instruments/wav/'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.mkdir(img_dir)
+
+for source in os.listdir(sample_dir):
+    audio = sample_dir + os.sep + source
+    image = img_dir + os.sep + source + '.png'
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    waveform = Waveform(width=1024, height=256, bg_color=(0,0,0), color_scheme='default')
+    (decoder | waveform).run()
+    print 'frames per pixel = ', waveform.graph.samples_per_pixel
+    print "render waveform to: %s" %  image
+    waveform.render(image)
+
+
+
diff --git a/tests/sandbox/test_waveform4.py b/tests/sandbox/test_waveform4.py
new file mode 100644
index 0000000..41e7a82
--- /dev/null
+++ b/tests/sandbox/test_waveform4.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample = '/home/momo/music_local/Isabelle Aboulker/Mon imagier des instruments/16 - Isabelle Aboulker - 16 instru.flac'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.mkdir(img_dir)
+
+audio = sample
+image = img_dir + os.sep + 'toto.png'
+decoder  = FileDecoder(audio)
+waveform = Waveform(width=1211, height=170, bg_color=(0,0,0), color_scheme='default')
+(decoder | waveform).run()
+print 'frames per pixel = ', waveform.graph.samples_per_pixel
+print "render waveform to: %s" %  image
+waveform.render(image)
+
+
+
diff --git a/tests/sandbox/test_waveform_centroid.py b/tests/sandbox/test_waveform_centroid.py
new file mode 100644
index 0000000..6b343d1
--- /dev/null
+++ b/tests/sandbox/test_waveform_centroid.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+test_dict = {'sweep.wav': 'waveform_wav.png',
+            'sweep.flac': 'waveform_flac.png',
+            'sweep.ogg': 'waveform_ogg.png',
+            'sweep.mp3': 'waveform_mp3.png',
+            }
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    waveform = WaveformCentroid(width=1024, height=256, bg_color=(0,0,0), color_scheme='default')
+    (decoder | waveform).run()
+    print 'frames per pixel = ', waveform.samples_per_pixel
+    print "render waveform to: %s" %  image
+    waveform.render(image)
diff --git a/tests/sandbox/test_waveform_contour.py b/tests/sandbox/test_waveform_contour.py
new file mode 100644
index 0000000..7fde73c
--- /dev/null
+++ b/tests/sandbox/test_waveform_contour.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+test_dict = {'sweep.wav': 'waveform_wav.png',
+            'sweep.flac': 'waveform_flac.png',
+            'sweep.ogg': 'waveform_ogg.png',
+            'sweep.mp3': 'waveform_mp3.png',
+            }
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    waveform = WaveformContourBlack()
+    (decoder | waveform).run()
+    print 'frames per pixel = ', waveform.samples_per_pixel
+    print "render waveform to: %s" %  image
+    waveform.render(image)
diff --git a/tests/sandbox/test_waveform_simple.py b/tests/sandbox/test_waveform_simple.py
new file mode 100644
index 0000000..ea95a4a
--- /dev/null
+++ b/tests/sandbox/test_waveform_simple.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+import os
+from timeside.core import *
+from timeside.api import *
+from timeside.decoder import *
+from timeside.grapher import *
+
+sample_dir = '../samples'
+img_dir = '../results/img'
+if not os.path.exists(img_dir):
+    os.makedirs(img_dir)
+
+test_dict = {'sweep.wav': 'waveform_wav.png',
+            'sweep.flac': 'waveform_flac.png',
+            'sweep.ogg': 'waveform_ogg.png',
+            'sweep.mp3': 'waveform_mp3.png',
+            }
+
+for source, image in test_dict.iteritems():
+    audio = os.path.join(os.path.dirname(__file__), sample_dir + os.sep + source)
+    image = img_dir + os.sep + image
+    print 'Test : decoder(%s) | waveform (%s)' % (source, image)
+    decoder  = FileDecoder(audio)
+    waveform = Waveform()
+    (decoder | waveform).run()
+    print 'frames per pixel = ', waveform.samples_per_pixel
+    print "render waveform to: %s" %  image
+    waveform.render(image)