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gdpdepay: Add ts-offset property to adjust buffer timestamps

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This commit is contained in:
Sebastian Dröge 2016-01-28 19:36:47 +01:00
parent fb30f07866
commit 80c72169c6
2 changed files with 62 additions and 0 deletions
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60
gst/gdp/gstgdpdepay.c
View file

@ -45,6 +45,7 @@
enum
{
PROP_0,
PROP_TS_OFFSET
};
static GstStaticPadTemplate gdp_depay_sink_template =
@ -81,6 +82,10 @@ static GstStateChangeReturn gst_gdp_depay_change_state (GstElement *
element, GstStateChange transition);
static void gst_gdp_depay_finalize (GObject * object);
static void gst_gdp_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gdp_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void
gst_gdp_depay_class_init (GstGDPDepayClass * klass)
@ -91,6 +96,15 @@ gst_gdp_depay_class_init (GstGDPDepayClass * klass)
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_gdp_depay_set_property;
gobject_class->get_property = gst_gdp_depay_get_property;
g_object_class_install_property (gobject_class, PROP_TS_OFFSET,
g_param_spec_int64 ("ts-offset", "Timestamp Offset",
"Timestamp Offset",
G_MININT64, G_MAXINT64, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class,
"GDP Depayloader", "GDP/Depayloader",
"Depayloads GStreamer Data Protocol buffers",
@ -143,6 +157,42 @@ gst_gdp_depay_finalize (GObject * gobject)
GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject));
}
static void
gst_gdp_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGDPDepay *this;
this = GST_GDP_DEPAY (object);
switch (prop_id) {
case PROP_TS_OFFSET:
this->ts_offset = g_value_get_int64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gdp_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGDPDepay *this;
this = GST_GDP_DEPAY (object);
switch (prop_id) {
case PROP_TS_OFFSET:
g_value_set_int64 (value, this->ts_offset);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_gdp_depay_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
@ -317,6 +367,16 @@ gst_gdp_depay_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
gst_adapter_flush (this->adapter, this->payload_length);
}
if (GST_BUFFER_TIMESTAMP (buf) > -this->ts_offset)
GST_BUFFER_TIMESTAMP (buf) += this->ts_offset;
else
GST_BUFFER_TIMESTAMP (buf) = 0;
if (GST_BUFFER_DTS (buf) > -this->ts_offset)
GST_BUFFER_DTS (buf) += this->ts_offset;
else
GST_BUFFER_DTS (buf) = 0;
/* set caps and push */
GST_LOG_OBJECT (this, "deserialized buffer %p, pushing, timestamp %"
GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT

2
gst/gdp/gstgdpdepay.h
View file

@ -66,6 +66,8 @@ struct _GstGDPDepay
guint8 *header;
guint32 payload_length;
GstDPPayloadType payload_type;
gint64 ts_offset;
};
struct _GstGDPDepayClass