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/*
* Copyright (C) 2013 Cable Television Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(VIDEO) && USE(GSTREAMER) && ENABLE(VIDEO_TRACK)
#include "TextSinkGStreamer.h"
GST_DEBUG_CATEGORY_STATIC(webkitTextSinkDebug);
#define GST_CAT_DEFAULT webkitTextSinkDebug
#define webkit_text_sink_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE(WebKitTextSink, webkit_text_sink, GST_TYPE_APP_SINK,
GST_DEBUG_CATEGORY_INIT(webkitTextSinkDebug, "webkittextsink", 0,
"webkit text sink"));
enum {
Prop0,
PropSync,
PropLast
};
static void webkit_text_sink_init(WebKitTextSink* sink)
{
/* We want to get cues as quickly as possible so WebKit has time to handle them,
* and we don't want cues to block when they come in the wrong order. */
gst_base_sink_set_sync(GST_BASE_SINK(sink), false);
}
static void webkitTextSinkGetProperty(GObject*, guint /* propertyId */,
GValue*, GParamSpec*)
{
/* Do nothing with PropSync */
}
static void webkitTextSinkSetProperty(GObject*, guint /* propertyId */,
const GValue*, GParamSpec*)
{
/* Do nothing with PropSync */
}
static gboolean webkitTextSinkQuery(GstElement *element, GstQuery *query)
{
switch (GST_QUERY_TYPE(query)) {
case GST_QUERY_DURATION:
case GST_QUERY_POSITION:
/* Ignore duration and position because we don't want the seek bar to be
* based on where the cues are. */
return false;
default:
WebKitTextSink* sink = WEBKIT_TEXT_SINK(element);
GstElement* parent = GST_ELEMENT(&sink->parent);
return GST_ELEMENT_CLASS(parent_class)->query(parent, query);
}
}
static void webkit_text_sink_class_init(WebKitTextSinkClass* klass)
{
GObjectClass* gobjectClass = G_OBJECT_CLASS(klass);
GstElementClass* elementClass = GST_ELEMENT_CLASS(klass);
gst_element_class_set_metadata(elementClass, "WebKit text sink", "Generic",
"An appsink that ignores the sync property and position and duration queries",
"Brendan Long <b.long@cablelabs.com>");
gobjectClass->get_property = GST_DEBUG_FUNCPTR(webkitTextSinkGetProperty);
gobjectClass->set_property = GST_DEBUG_FUNCPTR(webkitTextSinkSetProperty);
elementClass->query = GST_DEBUG_FUNCPTR(webkitTextSinkQuery);
/* Override "sync" so playsink doesn't mess with our appsink */
g_object_class_override_property(gobjectClass, PropSync, "sync");
}
GstElement* webkitTextSinkNew()
{
return GST_ELEMENT(g_object_new(WEBKIT_TYPE_TEXT_SINK, 0));
}
#endif // ENABLE(VIDEO) && USE(GSTREAMER) && ENABLE(VIDEO_TRACK)
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