static gboolean
gst_segment_clip_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
GstSegmentClipClass *klass = GST_SEGMENT_CLIP_GET_CLASS (self);
gboolean ret;
GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
ret = klass->set_caps (self, caps);
gst_object_unref (self);
return ret;
}
static gboolean
gst_segment_clip_query (GstPad * pad, GstQuery * query)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
gboolean ret;
GstPad *otherpad;
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
GST_LOG_OBJECT (pad, "Handling query of type '%s'",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
ret = gst_pad_peer_query (otherpad, query);
gst_object_unref (self);
return ret;
}
static const GstQueryType *
gst_segment_clip_query_type (GstPad * pad)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
GstPad *otherpad, *peer;
const GstQueryType *types = NULL;
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
peer = gst_pad_get_peer (otherpad);
if (peer) {
types = gst_pad_get_query_types (peer);
gst_object_unref (peer);
}
gst_object_unref (self);
return types;
}
static gboolean
gst_segment_clip_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (parent);
gboolean ret = TRUE;
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
/* should be only downstream */
g_assert (pad == self->sinkpad);
gst_event_parse_caps (event, &caps);
ret = gst_segment_clip_sink_setcaps (self, caps);
break;
}
case GST_EVENT_SEGMENT:
{
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
GST_DEBUG_OBJECT (pad, "Got NEWSEGMENT event %" GST_SEGMENT_FORMAT,
segment);
gst_segment_copy_into (segment, &self->segment);
break;
}
case GST_EVENT_FLUSH_STOP:
gst_segment_clip_reset (self);
break;
default:
break;
}
if (ret)
ret = gst_pad_event_default (pad, parent, event);
else
gst_event_unref (event);
return ret;
}
static GstFlowReturn
gst_segment_clip_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (GST_PAD_PARENT (pad));
GstFlowReturn ret;
GstSegmentClipClass *klass = GST_SEGMENT_CLIP_GET_CLASS (self);
GstBuffer *outbuf = NULL;
GST_LOG_OBJECT (pad,
"Handling buffer with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
ret = klass->clip_buffer (self, buffer, &outbuf);
if (ret == GST_FLOW_OK && outbuf)
ret = gst_pad_push (self->srcpad, outbuf);
return ret;
}
static gboolean
gst_segment_clip_event (GstPad * pad, GstEvent * event)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
GstPad *otherpad;
gboolean ret;
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
ret = gst_pad_push_event (otherpad, event);
if (ret) {
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:{
GstFormat fmt;
gboolean is_update;
gint64 start, end, base;
gdouble rate;
gst_event_parse_new_segment (event, &is_update, &rate, &fmt, &start,
&end, &base);
GST_DEBUG_OBJECT (pad,
"Got NEWSEGMENT event in %s format, passing on (%"
GST_TIME_FORMAT " - %" GST_TIME_FORMAT ")",
gst_format_get_name (fmt), GST_TIME_ARGS (start),
GST_TIME_ARGS (end));
gst_segment_set_newsegment (&self->segment, is_update, rate, fmt, start,
end, base);
break;
}
case GST_EVENT_FLUSH_STOP:
gst_segment_clip_reset (self);
break;
default:
break;
}
}
gst_object_unref (self);
return ret;
}
static GstStateChangeReturn
gst_segment_clip_change_state (GstElement * element, GstStateChange transition)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
if (GST_ELEMENT_CLASS (parent_class)->change_state)
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_segment_clip_reset (self);
break;
default:
break;
}
return ret;
}
static GstFlowReturn
gst_segment_clip_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
GstFlowReturn ret = GST_FLOW_OK;
GST_LOG_OBJECT (pad, "Allocating buffer with offset 0x%" G_GINT64_MODIFIER
"x and size %u with caps: %" GST_PTR_FORMAT, offset, size, caps);
*buf = NULL;
ret = gst_pad_alloc_buffer (self->srcpad, offset, size, caps, buf);
if (G_UNLIKELY (ret != GST_FLOW_OK))
GST_ERROR_OBJECT (pad, "Allocating buffer failed: %s",
gst_flow_get_name (ret));
gst_object_unref (self);
return ret;
}
static gboolean
gst_segment_clip_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (parent);
gboolean ret;
GST_LOG_OBJECT (pad, "Handling query of type '%s'",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
if (GST_QUERY_TYPE (query) == GST_QUERY_CAPS) {
GstCaps *caps;
gst_query_parse_caps (query, &caps);
caps = gst_segment_clip_getcaps (self, pad, caps);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
} else {
ret = gst_pad_query_default (pad, parent, query);
}
return ret;
}
static GstCaps *
gst_segment_clip_getcaps (GstPad * pad)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (gst_pad_get_parent (pad));
GstPad *otherpad;
GstCaps *tmp, *ret;
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
tmp = gst_pad_peer_get_caps (otherpad);
if (tmp) {
ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
}
gst_object_unref (self);
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
