From e9d5467cf5279fa241204836c6a4682c50dc07cf Mon Sep 17 00:00:00 2001
From: Thomas Fillon <thomas@parisson.com>
Date: Mon, 14 Apr 2014 23:02:41 +0200
Subject: [PATCH] Enable TimeSide to work without external libraries such as
 Yafe, Aubio, Vamp

Add automatic detection of Yaafe, Aubio and Vamp and add a conditional import of related analyzers in timeside/anaylers/__init__.py
---
 timeside/analyzer/__init__.py  | 40 +++++++++++++++++++++++++++-------
 timeside/analyzer/limsi_sad.py |  6 +++--
 2 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/timeside/analyzer/__init__.py b/timeside/analyzer/__init__.py
index 27aa32d..3f5eb52 100644
--- a/timeside/analyzer/__init__.py
+++ b/timeside/analyzer/__init__.py
@@ -1,17 +1,41 @@
 # -*- coding: utf-8 -*-
 
+# ----- Load external libraries ------
+# Aubio
+try:
+    WITH_AUBIO = True
+    from aubio_temporal import AubioTemporal
+    from aubio_pitch import AubioPitch
+    from aubio_mfcc import *
+    from aubio_melenergy import *
+    from aubio_specdesc import *
+except ImportError:
+    WITH_AUBIO = False
+
+# Yaafe
+try:
+    WITH_YAAFE = True
+    from yaafe import *
+
+except ImportError:
+    WITH_YAAFE = False
+
+# Vamp Plugins
+try:
+    from vamp_plugin import VampSimpleHost
+    VampSimpleHost.SimpleHostProcess(['-v'])
+    WITH_VAMP = True
+except OSError:
+    WITH_VAMP = False
+
+
+# ----- Load timeside analyzers ------
 from level import Level
 from dc import MeanDCShift
-from aubio_temporal import AubioTemporal
-from aubio_pitch import AubioPitch
-from aubio_mfcc import *
-from aubio_melenergy import *
-from aubio_specdesc import *
-from yaafe import *
 from spectrogram import Spectrogram
 from waveform import Waveform
-from vamp_plugin import VampSimpleHost
 from irit_speech_entropy import IRITSpeechEntropy
 from irit_speech_4hz import IRITSpeech4Hz
 from odf import OnsetDetectionFunction
-from limsi_sad import LimsiSad
+if WITH_YAAFE:
+    from limsi_sad import LimsiSad
diff --git a/timeside/analyzer/limsi_sad.py b/timeside/analyzer/limsi_sad.py
index 5586aad..5a5afa0 100644
--- a/timeside/analyzer/limsi_sad.py
+++ b/timeside/analyzer/limsi_sad.py
@@ -23,8 +23,10 @@ from timeside.core import implements, interfacedoc
 from timeside.analyzer.core import Analyzer
 from timeside.api import IAnalyzer
 import timeside
-from yaafe import Yaafe
-import yaafelib
+from timeside.analyzer import WITH_YAAFE
+if WITH_YAAFE:
+    from yaafe import Yaafe
+    import yaafelib
 import numpy as N
 import pickle
 import os.path
-- 
2.39.5