gst/audiofx/: Use a custom mutex for protecting the instance fields instead of the GstObject lock. Using the latter c...

Original commit message from CVS:
* gst/audiofx/audiochebband.c: (gst_audio_cheb_band_class_init),
(gst_audio_cheb_band_init), (gst_audio_cheb_band_finalize),
(gst_audio_cheb_band_set_property):
* gst/audiofx/audiochebband.h:
* gst/audiofx/audiocheblimit.c: (gst_audio_cheb_limit_class_init),
(gst_audio_cheb_limit_init), (gst_audio_cheb_limit_finalize),
(gst_audio_cheb_limit_set_property):
* gst/audiofx/audiocheblimit.h:
* gst/audiofx/audiowsincband.c: (gst_audio_wsincband_class_init),
(gst_audio_wsincband_init), (gst_audio_wsincband_finalize),
(gst_audio_wsincband_set_property):
* gst/audiofx/audiowsincband.h:
* gst/audiofx/audiowsinclimit.c: (gst_audio_wsinclimit_class_init),
(gst_audio_wsinclimit_init), (gst_audio_wsinclimit_finalize),
(gst_audio_wsinclimit_set_property):
* gst/audiofx/audiowsinclimit.h:
Use a custom mutex for protecting the instance fields instead of
the GstObject lock. Using the latter can lead to deadlocks, especially
with the FIR filters when updating the latency.

9 files changed, 134 insertions, 54 deletions

diff --git a/ChangeLog b/ChangeLog
index 12343bdf..afe32145 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+2009-01-13  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
+
+	* gst/audiofx/audiochebband.c: (gst_audio_cheb_band_class_init),
+	(gst_audio_cheb_band_init), (gst_audio_cheb_band_finalize),
+	(gst_audio_cheb_band_set_property):
+	* gst/audiofx/audiochebband.h:
+	* gst/audiofx/audiocheblimit.c: (gst_audio_cheb_limit_class_init),
+	(gst_audio_cheb_limit_init), (gst_audio_cheb_limit_finalize),
+	(gst_audio_cheb_limit_set_property):
+	* gst/audiofx/audiocheblimit.h:
+	* gst/audiofx/audiowsincband.c: (gst_audio_wsincband_class_init),
+	(gst_audio_wsincband_init), (gst_audio_wsincband_finalize),
+	(gst_audio_wsincband_set_property):
+	* gst/audiofx/audiowsincband.h:
+	* gst/audiofx/audiowsinclimit.c: (gst_audio_wsinclimit_class_init),
+	(gst_audio_wsinclimit_init), (gst_audio_wsinclimit_finalize),
+	(gst_audio_wsinclimit_set_property):
+	* gst/audiofx/audiowsinclimit.h:
+	Use a custom mutex for protecting the instance fields instead of
+	the GstObject lock. Using the latter can lead to deadlocks, especially
+	with the FIR filters when updating the latency.
+
 2009-01-11  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
 
 	* gst/audiofx/Makefile.am:
diff --git a/gst/audiofx/audiochebband.c b/gst/audiofx/audiochebband.c
index 36aeb8de..bf9c205e 100644
--- a/gst/audiofx/audiochebband.c
+++ b/gst/audiofx/audiochebband.c
@@ -113,6 +113,7 @@ static void gst_audio_cheb_band_set_property (GObject * object,
     guint prop_id, const GValue * value, GParamSpec * pspec);
 static void gst_audio_cheb_band_get_property (GObject * object,
     guint prop_id, GValue * value, GParamSpec * pspec);
+static void gst_audio_cheb_band_finalize (GObject * object);
 
 static gboolean gst_audio_cheb_band_setup (GstAudioFilter * filter,
     GstRingBufferSpec * format);
@@ -164,6 +165,7 @@ gst_audio_cheb_band_class_init (GstAudioChebBandClass * klass)
 
   gobject_class->set_property = gst_audio_cheb_band_set_property;
   gobject_class->get_property = gst_audio_cheb_band_get_property;
+  gobject_class->finalize = gst_audio_cheb_band_finalize;
 
   g_object_class_install_property (gobject_class, PROP_MODE,
       g_param_spec_enum ("mode", "Mode",
@@ -210,6 +212,8 @@ gst_audio_cheb_band_init (GstAudioChebBand * filter,
   filter->type = 1;
   filter->poles = 4;
   filter->ripple = 0.25;
+
+  filter->lock = g_mutex_new ();
 }
 
 static void
@@ -568,6 +572,17 @@ generate_coefficients (GstAudioChebBand * filter)
 }
 
 static void
+gst_audio_cheb_band_finalize (GObject * object)
+{
+  GstAudioChebBand *filter = GST_AUDIO_CHEB_BAND (object);
+
+  g_mutex_free (filter->lock);
+  filter->lock = NULL;
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
 gst_audio_cheb_band_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
@@ -575,40 +590,40 @@ gst_audio_cheb_band_set_property (GObject * object, guint prop_id,
 
   switch (prop_id) {
     case PROP_MODE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->mode = g_value_get_enum (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_TYPE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->type = g_value_get_int (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_LOWER_FREQUENCY:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->lower_frequency = g_value_get_float (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_UPPER_FREQUENCY:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->upper_frequency = g_value_get_float (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_RIPPLE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->ripple = g_value_get_float (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_POLES:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->poles = GST_ROUND_UP_4 (g_value_get_int (value));
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
diff --git a/gst/audiofx/audiochebband.h b/gst/audiofx/audiochebband.h
index fae1a0c6..32610325 100644
--- a/gst/audiofx/audiochebband.h
+++ b/gst/audiofx/audiochebband.h
@@ -48,6 +48,9 @@ struct _GstAudioChebBand
   gfloat lower_frequency;
   gfloat upper_frequency;
   gfloat ripple;
+
+  /* < private > */
+  GMutex *lock;
 };
 
 struct _GstAudioChebBandClass
diff --git a/gst/audiofx/audiocheblimit.c b/gst/audiofx/audiocheblimit.c
index 4d8d311d..b4efbb3a 100644
--- a/gst/audiofx/audiocheblimit.c
+++ b/gst/audiofx/audiocheblimit.c
@@ -109,6 +109,7 @@ static void gst_audio_cheb_limit_set_property (GObject * object,
     guint prop_id, const GValue * value, GParamSpec * pspec);
 static void gst_audio_cheb_limit_get_property (GObject * object,
     guint prop_id, GValue * value, GParamSpec * pspec);
+static void gst_audio_cheb_limit_finalize (GObject * object);
 
 static gboolean gst_audio_cheb_limit_setup (GstAudioFilter * filter,
     GstRingBufferSpec * format);
@@ -161,6 +162,7 @@ gst_audio_cheb_limit_class_init (GstAudioChebLimitClass * klass)
 
   gobject_class->set_property = gst_audio_cheb_limit_set_property;
   gobject_class->get_property = gst_audio_cheb_limit_get_property;
+  gobject_class->finalize = gst_audio_cheb_limit_finalize;
 
   g_object_class_install_property (gobject_class, PROP_MODE,
       g_param_spec_enum ("mode", "Mode",
@@ -203,6 +205,8 @@ gst_audio_cheb_limit_init (GstAudioChebLimit * filter,
   filter->type = 1;
   filter->poles = 4;
   filter->ripple = 0.25;
+
+  filter->lock = g_mutex_new ();
 }
 
 static void
@@ -479,6 +483,17 @@ generate_coefficients (GstAudioChebLimit * filter)
 }
 
 static void
+gst_audio_cheb_limit_finalize (GObject * object)
+{
+  GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (object);
+
+  g_mutex_free (filter->lock);
+  filter->lock = NULL;
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
 gst_audio_cheb_limit_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
@@ -486,34 +501,34 @@ gst_audio_cheb_limit_set_property (GObject * object, guint prop_id,
 
   switch (prop_id) {
     case PROP_MODE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->mode = g_value_get_enum (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_TYPE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->type = g_value_get_int (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_CUTOFF:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->cutoff = g_value_get_float (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_RIPPLE:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->ripple = g_value_get_float (value);
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     case PROP_POLES:
-      GST_OBJECT_LOCK (filter);
+      g_mutex_lock (filter->lock);
       filter->poles = GST_ROUND_UP_2 (g_value_get_int (value));
       generate_coefficients (filter);
-      GST_OBJECT_UNLOCK (filter);
+      g_mutex_unlock (filter->lock);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
diff --git a/gst/audiofx/audiocheblimit.h b/gst/audiofx/audiocheblimit.h
index 491f7494..6f798528 100644
--- a/gst/audiofx/audiocheblimit.h
+++ b/gst/audiofx/audiocheblimit.h
@@ -49,6 +49,9 @@ struct _GstAudioChebLimit
   gint poles;
   gfloat cutoff;
   gfloat ripple;
+
+  /* < private > */
+  GMutex *lock;
 };
 
 struct _GstAudioChebLimitClass
diff --git a/gst/audiofx/audiowsincband.c b/gst/audiofx/audiowsincband.c
index 62034308..69bf5c19 100644
--- a/gst/audiofx/audiowsincband.c
+++ b/gst/audiofx/audiowsincband.c
@@ -26,13 +26,6 @@
  * chapter 16
  * available at http://www.dspguide.com/
  *
- * TODO:  - Implement the convolution in place, probably only makes sense
- *          when using FFT convolution as currently the convolution itself
- *          is probably the bottleneck
- *        - Maybe allow cascading the filter to get a better stopband attenuation.
- *          Can be done by convolving a filter kernel with itself
- *        - Drop the first kernel_length/2 samples and append the same number of
- *          samples on EOS as the first few samples are essentialy zero.
  */
 
 /**
@@ -150,6 +143,7 @@ static void gst_audio_wsincband_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec);
 static void gst_audio_wsincband_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec);
+static void gst_audio_wsincband_finalize (GObject * object);
 
 static gboolean gst_audio_wsincband_setup (GstAudioFilter * base,
     GstRingBufferSpec * format);
@@ -177,6 +171,7 @@ gst_audio_wsincband_class_init (GstAudioWSincBandClass * klass)
 
   gobject_class->set_property = gst_audio_wsincband_set_property;
   gobject_class->get_property = gst_audio_wsincband_get_property;
+  gobject_class->finalize = gst_audio_wsincband_finalize;
 
   /* FIXME: Don't use the complete possible range but restrict the upper boundary
    * so automatically generated UIs can use a slider */
@@ -218,6 +213,8 @@ gst_audio_wsincband_init (GstAudioWSincBand * self,
   self->upper_frequency = 0.0;
   self->mode = MODE_BAND_PASS;
   self->window = WINDOW_HAMMING;
+
+  self->lock = g_mutex_new ();
 }
 
 static void
@@ -353,6 +350,17 @@ gst_audio_wsincband_setup (GstAudioFilter * base, GstRingBufferSpec * format)
 }
 
 static void
+gst_audio_wsincband_finalize (GObject * object)
+{
+  GstAudioWSincBand *self = GST_AUDIO_WSINC_BAND (object);
+
+  g_mutex_free (self->lock);
+  self->lock = NULL;
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
 gst_audio_wsincband_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
@@ -364,7 +372,7 @@ gst_audio_wsincband_set_property (GObject * object, guint prop_id,
     case PROP_LENGTH:{
       gint val;
 
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       val = g_value_get_int (value);
       if (val % 2 == 0)
         val++;
@@ -375,32 +383,32 @@ gst_audio_wsincband_set_property (GObject * object, guint prop_id,
         self->kernel_length = val;
         gst_audio_wsincband_build_kernel (self);
       }
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     }
     case PROP_LOWER_FREQUENCY:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->lower_frequency = g_value_get_float (value);
       gst_audio_wsincband_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     case PROP_UPPER_FREQUENCY:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->upper_frequency = g_value_get_float (value);
       gst_audio_wsincband_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     case PROP_MODE:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->mode = g_value_get_enum (value);
       gst_audio_wsincband_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     case PROP_WINDOW:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->window = g_value_get_enum (value);
       gst_audio_wsincband_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
diff --git a/gst/audiofx/audiowsincband.h b/gst/audiofx/audiowsincband.h
index 977a41f0..b0dea007 100644
--- a/gst/audiofx/audiowsincband.h
+++ b/gst/audiofx/audiowsincband.h
@@ -60,11 +60,13 @@ typedef struct _GstAudioWSincBandClass GstAudioWSincBandClass;
 struct _GstAudioWSincBand {
   GstAudioFXBaseFIRFilter parent;
 
-  /* < private > */
   gint mode;
   gint window;
   gfloat lower_frequency, upper_frequency;
   gint kernel_length;           /* length of the filter kernel */
+
+  /* < private > */
+  GMutex *lock;
 };
 
 struct _GstAudioWSincBandClass {
diff --git a/gst/audiofx/audiowsinclimit.c b/gst/audiofx/audiowsinclimit.c
index 68e8522c..1f33ad2d 100644
--- a/gst/audiofx/audiowsinclimit.c
+++ b/gst/audiofx/audiowsinclimit.c
@@ -26,11 +26,6 @@
  * chapter 16
  * available at http://www.dspguide.com/
  *
- * TODO:  - Implement the convolution in place, probably only makes sense
- *          when using FFT convolution as currently the convolution itself
- *          is probably the bottleneck
- *        - Maybe allow cascading the filter to get a better stopband attenuation.
- *          Can be done by convolving a filter kernel with itself
  */
 
 /**
@@ -147,6 +142,7 @@ static void gst_audio_wsinclimit_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec);
 static void gst_audio_wsinclimit_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec);
+static void gst_audio_wsinclimit_finalize (GObject * object);
 
 static gboolean gst_audio_wsinclimit_setup (GstAudioFilter * base,
     GstRingBufferSpec * format);
@@ -175,6 +171,7 @@ gst_audio_wsinclimit_class_init (GstAudioWSincLimitClass * klass)
 
   gobject_class->set_property = gst_audio_wsinclimit_set_property;
   gobject_class->get_property = gst_audio_wsinclimit_get_property;
+  gobject_class->finalize = gst_audio_wsinclimit_finalize;
 
   /* FIXME: Don't use the complete possible range but restrict the upper boundary
    * so automatically generated UIs can use a slider */
@@ -211,6 +208,8 @@ gst_audio_wsinclimit_init (GstAudioWSincLimit * self,
   self->window = WINDOW_HAMMING;
   self->kernel_length = 101;
   self->cutoff = 0.0;
+
+  self->lock = g_mutex_new ();
 }
 
 static void
@@ -293,6 +292,17 @@ gst_audio_wsinclimit_setup (GstAudioFilter * base, GstRingBufferSpec * format)
 }
 
 static void
+gst_audio_wsinclimit_finalize (GObject * object)
+{
+  GstAudioWSincLimit *self = GST_AUDIO_WSINC_LIMIT (object);
+
+  g_mutex_free (self->lock);
+  self->lock = NULL;
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
 gst_audio_wsinclimit_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
@@ -304,7 +314,7 @@ gst_audio_wsinclimit_set_property (GObject * object, guint prop_id,
     case PROP_LENGTH:{
       gint val;
 
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       val = g_value_get_int (value);
       if (val % 2 == 0)
         val++;
@@ -315,26 +325,26 @@ gst_audio_wsinclimit_set_property (GObject * object, guint prop_id,
         self->kernel_length = val;
         gst_audio_wsinclimit_build_kernel (self);
       }
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     }
     case PROP_FREQUENCY:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->cutoff = g_value_get_float (value);
       gst_audio_wsinclimit_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     case PROP_MODE:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->mode = g_value_get_enum (value);
       gst_audio_wsinclimit_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     case PROP_WINDOW:
-      GST_OBJECT_LOCK (self);
+      g_mutex_lock (self->lock);
       self->window = g_value_get_enum (value);
       gst_audio_wsinclimit_build_kernel (self);
-      GST_OBJECT_UNLOCK (self);
+      g_mutex_unlock (self->lock);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
diff --git a/gst/audiofx/audiowsinclimit.h b/gst/audiofx/audiowsinclimit.h
index d30b3938..1a67169e 100644
--- a/gst/audiofx/audiowsinclimit.h
+++ b/gst/audiofx/audiowsinclimit.h
@@ -60,11 +60,13 @@ typedef struct _GstAudioWSincLimitClass GstAudioWSincLimitClass;
 struct _GstAudioWSincLimit {
   GstAudioFXBaseFIRFilter parent;
 
-  /* < private > */
   gint mode;
   gint window;
   gfloat cutoff;
   gint kernel_length;
+
+  /* < private > */
+  GMutex *lock;
 };
 
 struct _GstAudioWSincLimitClass {