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removesilence: reset filter on start and on segment events

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This commit is contained in:
Nicola Murino 2018-12-14 17:09:01 +01:00
parent f7880c0272
commit 824e079273
2 changed files with 50 additions and 8 deletions
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51
gst/removesilence/gstremovesilence.c
View file

@ -110,6 +110,9 @@ static void gst_remove_silence_set_property (GObject * object, guint prop_id,
static void gst_remove_silence_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_remove_silence_start (GstBaseTransform * trans);
static gboolean gst_remove_silence_sink_event (GstBaseTransform * trans,
GstEvent * event);
static GstFlowReturn gst_remove_silence_transform_ip (GstBaseTransform * base,
GstBuffer * buf);
static void gst_remove_silence_finalize (GObject * obj);
@ -122,9 +125,11 @@ gst_remove_silence_class_init (GstRemoveSilenceClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseTransformClass *base_transform_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
base_transform_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->finalize = gst_remove_silence_finalize;
gobject_class->set_property = gst_remove_silence_set_property;
@ -183,10 +188,22 @@ gst_remove_silence_class_init (GstRemoveSilenceClass * klass)
gst_element_class_add_static_pad_template (gstelement_class, &src_template);
gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
base_transform_class->start = GST_DEBUG_FUNCPTR (gst_remove_silence_start);
base_transform_class->sink_event =
GST_DEBUG_FUNCPTR (gst_remove_silence_sink_event);
base_transform_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_remove_silence_transform_ip);
}
static void
gst_remove_silence_reset (GstRemoveSilence * filter)
{
filter->ts_offset = 0;
filter->silence_detected = FALSE;
filter->consecutive_silence_buffers = 0;
filter->consecutive_silence_time = 0;
}
/* initialize the new element
* instantiate pads and add them to element
* set pad calback functions
@ -198,13 +215,11 @@ gst_remove_silence_init (GstRemoveSilence * filter)
filter->vad = vad_new (DEFAULT_VAD_HYSTERESIS, DEFAULT_VAD_THRESHOLD);
filter->remove = FALSE;
filter->squash = FALSE;
filter->ts_offset = 0;
filter->silence_detected = FALSE;
filter->silent = TRUE;
filter->consecutive_silence_buffers = 0;
filter->minimum_silence_buffers = MINIMUM_SILENCE_BUFFERS_DEF;
filter->minimum_silence_time = MINIMUM_SILENCE_TIME_DEF;
filter->consecutive_silence_time = 0;
gst_remove_silence_reset (filter);
if (!filter->vad) {
GST_DEBUG ("Error initializing VAD !!");
@ -212,6 +227,32 @@ gst_remove_silence_init (GstRemoveSilence * filter)
}
}
static gboolean
gst_remove_silence_start (GstBaseTransform * trans)
{
GstRemoveSilence *filter = GST_REMOVE_SILENCE (trans);
GST_INFO ("reset filter on start");
gst_remove_silence_reset (filter);
return TRUE;
}
static gboolean
gst_remove_silence_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstRemoveSilence *filter = GST_REMOVE_SILENCE (trans);
if (event->type == GST_EVENT_SEGMENT) {
GST_INFO ("reset filter on segment event");
gst_remove_silence_reset (filter);
}
return
GST_BASE_TRANSFORM_CLASS (gst_remove_silence_parent_class)->sink_event
(trans, event);
}
static void
gst_remove_silence_finalize (GObject * obj)
{

7
gst/removesilence/gstremovesilence.h
View file

@ -45,13 +45,14 @@ typedef struct _GstRemoveSilence {
VADFilter* vad;
gboolean remove;
gboolean squash;
gboolean silent;
guint16 minimum_silence_buffers;
guint64 minimum_silence_time;
/* filter params protected by STREAM_LOCK */
guint64 ts_offset;
gboolean silence_detected;
gboolean silent;
guint64 consecutive_silence_buffers;
guint16 minimum_silence_buffers;
guint64 consecutive_silence_time;
guint64 minimum_silence_time;
} GstRemoveSilence;
typedef struct _GstRemoveSilenceClass {