static GstStateChangeReturn
gst_raw_parse_change_state (GstElement * element, GstStateChange transition)
{
GstRawParse *rp = GST_RAW_PARSE (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_segment_init (&rp->segment, GST_FORMAT_TIME);
rp->segment.position = 0;
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_raw_parse_reset (rp);
break;
default:
break;
}
return ret;
}
static gboolean
gst_raw_parse_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstRawParse *rp = GST_RAW_PARSE (parent);
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
case GST_EVENT_FLUSH_STOP:
/* Only happens in push mode */
gst_raw_parse_reset (rp);
ret = gst_pad_push_event (rp->srcpad, event);
break;
case GST_EVENT_SEGMENT:
{
GstSegment segment;
/* Only happens in push mode */
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_TIME) {
gst_event_unref (event);
ret =
gst_raw_parse_convert (rp, segment.format, segment.start,
GST_FORMAT_TIME, (gint64 *) & segment.start);
ret &= gst_raw_parse_convert (rp, segment.format, segment.time,
GST_FORMAT_TIME, (gint64 *) & segment.time);
ret &= gst_raw_parse_convert (rp, segment.format, segment.stop,
GST_FORMAT_TIME, (gint64 *) & segment.stop);
if (!ret) {
GST_ERROR_OBJECT (rp,
"Failed converting to GST_FORMAT_TIME format (%d)",
segment.format);
break;
}
segment.format = GST_FORMAT_TIME;
event = gst_event_new_segment (&segment);
}
gst_segment_copy_into (&segment, &rp->segment);
if (rp->start_segment)
gst_event_unref (rp->start_segment);
rp->start_segment = event;
ret = TRUE;
break;
}
default:
ret = gst_pad_event_default (pad, parent, event);
break;
}
return ret;
}
static void
gst_raw_parse_init (GstRawParse * rp, GstRawParseClass * g_class)
{
GstPadTemplate *src_pad_template;
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
rp->sinkpad =
gst_pad_new_from_static_template (&gst_raw_parse_sink_pad_template,
"sink");
gst_pad_set_chain_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_chain));
gst_pad_set_event_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_event));
gst_pad_set_activate_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_activate));
gst_pad_set_activatepull_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_activatepull));
gst_element_add_pad (GST_ELEMENT (rp), rp->sinkpad);
src_pad_template = gst_element_class_get_pad_template (element_class, "src");
if (src_pad_template) {
rp->srcpad = gst_pad_new_from_template (src_pad_template, "src");
} else {
g_warning ("Subclass didn't specify a src pad template");
g_assert_not_reached ();
}
gst_pad_set_event_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_event));
gst_pad_set_query_type_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_query_type));
gst_pad_set_query_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_query));
gst_element_add_pad (GST_ELEMENT (rp), rp->srcpad);
rp->adapter = gst_adapter_new ();
rp->fps_n = 1;
rp->fps_d = 0;
rp->framesize = 1;
gst_raw_parse_reset (rp);
}
static gboolean
gst_raw_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstRawParse *rp = GST_RAW_PARSE (gst_pad_get_parent (pad));
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
case GST_EVENT_FLUSH_STOP:
/* Only happens in push mode */
gst_raw_parse_reset (rp);
ret = gst_pad_push_event (rp->srcpad, event);
break;
case GST_EVENT_NEWSEGMENT:
{
GstClockTimeDiff start, stop, time;
gdouble rate, arate;
gboolean update;
GstFormat format;
/* Only happens in push mode */
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
if (format == GST_FORMAT_TIME) {
gst_segment_set_newsegment_full (&rp->segment, update, rate, arate,
GST_FORMAT_TIME, start, stop, time);
ret = gst_pad_push_event (rp->srcpad, event);
} else {
gst_event_unref (event);
ret =
gst_raw_parse_convert (rp, format, start, GST_FORMAT_TIME, &start);
ret &= gst_raw_parse_convert (rp, format, time, GST_FORMAT_TIME, &time);
ret &= gst_raw_parse_convert (rp, format, stop, GST_FORMAT_TIME, &stop);
if (!ret) {
GST_ERROR_OBJECT (rp,
"Failed converting to GST_FORMAT_TIME format (%d)", format);
break;
}
gst_segment_set_newsegment_full (&rp->segment, update, rate, arate,
GST_FORMAT_TIME, start, stop, time);
/* create new segment with the fields converted to time */
event = gst_event_new_new_segment_full (update, rate, arate,
GST_FORMAT_TIME, start, stop, time);
ret = gst_pad_push_event (rp->srcpad, event);
}
break;
}
default:
ret = gst_pad_event_default (rp->sinkpad, event);
break;
}
gst_object_unref (rp);
return ret;
}
