/**
* SECTION:element-dfbvideosink
+ * @title: dfbvideosink
*
* DfbVideoSink renders video frames using the
- * <ulink url="http://www.directfb.org/">DirectFB</ulink> library.
+ * [DirectFB](http://www.directfb.org/) library.
* Rendering can happen in two different modes :
- * <itemizedlist>
- * <listitem>
- * <para>
- * Standalone: this mode will take complete control of the monitor forcing
- * <ulink url="http://www.directfb.org/">DirectFB</ulink> to fullscreen layout.
+ *
+ * * Standalone: this mode will take complete control of the monitor forcing
+ * DirectFB to fullscreen layout.
+ *
* This is convenient to test using the gst-launch-1.0 command line tool or
* other simple applications. It is possible to interrupt playback while
* being in this mode by pressing the Escape key.
- * </para>
- * <para>
* This mode handles navigation events for every input device supported by
- * the <ulink url="http://www.directfb.org/">DirectFB</ulink> library, it will
- * look for available video modes in the fb.modes file and try to switch
- * the framebuffer video mode to the most suitable one. Depending on
- * hardware acceleration capabilities the element will handle scaling or not.
+ * the DirectFB library, it will look for available video modes in the fb.modes
+ * file and try to switch the framebuffer video mode to the most suitable one.
+ * Depending on hardware acceleration capabilities the element will handle
+ * scaling or not.
+ *
* If no acceleration is available it will do clipping or centering of the
* video frames respecting the original aspect ratio.
- * </para>
- * </listitem>
- * <listitem>
- * <para>
- * Embedded: this mode will render video frames in a
+ *
+ * * Embedded: this mode will render video frames in a
* #GstDfbVideoSink:surface provided by the
* application developer. This is a more advanced usage of the element and
- * it is required to integrate video playback in existing
- * <ulink url="http://www.directfb.org/">DirectFB</ulink> applications.
- * </para>
- * <para>
+ * it is required to integrate video playback in existing
+ * DirectFB applications.
+ *
* When using this mode the element just renders to the
- * #GstDfbVideoSink:surface provided by the
+ * #GstDfbVideoSink:surface provided by the
* application, that means it won't handle navigation events and won't resize
* the #GstDfbVideoSink:surface to fit video
* frames geometry. Application has to implement the necessary code to grab
- * informations about the negotiated geometry and resize there
+ * information about the negotiated geometry and resize there
* #GstDfbVideoSink:surface accordingly.
- * </para>
- * </listitem>
- * </itemizedlist>
- * For both modes the element implements a buffer pool allocation system to
- * optimize memory allocation time and handle reverse negotiation. Indeed if
+ *
+ * For both modes the element implements a buffer pool allocation system to
+ * optimize memory allocation time and handle reverse negotiation. Indeed if
* you insert an element like videoscale in the pipeline the video sink will
* negotiate with it to try get a scaled video for either the fullscreen layout
* or the application provided external #GstDfbVideoSink:surface.
*
- * <refsect2>
- * <title>Example application</title>
- * <para>
+ * ## Example application
+ *
* <include xmlns="http://www.w3.org/2003/XInclude" href="element-dfb-example.xml" />
- * </para>
- * </refsect2>
- * <refsect2>
- * <title>Example pipelines</title>
+ *
+ * ## Example pipelines
* |[
* gst-launch-1.0 -v videotestsrc ! dfbvideosink hue=20000 saturation=40000 brightness=25000
* ]| test the colorbalance interface implementation in dfbvideosink
- * </refsect2>
*/
#ifdef HAVE_CONFIG_H
return type;
}
+static gboolean
+gst_meta_dfbsurface_init (GstMetaDfbSurface * meta, gpointer params,
+ GstBuffer * buf)
+{
+ meta->surface = NULL;
+ meta->width = meta->height = 0;
+ meta->locked = FALSE;
+ meta->pixel_format = 0;
+ meta->dfbvideosink = NULL;
+
+ return TRUE;
+}
+
/* our metadata */
const GstMetaInfo *
gst_meta_dfbsurface_get_info (void)
const GstMetaInfo *meta =
gst_meta_register (gst_meta_dfbsurface_api_get_type (),
"GstMetaDfbSurface", sizeof (GstMetaDfbSurface),
- (GstMetaInitFunction) NULL, (GstMetaFreeFunction) NULL,
+ (GstMetaInitFunction) gst_meta_dfbsurface_init,
+ (GstMetaFreeFunction) NULL,
(GstMetaTransformFunction) NULL);
g_once_init_leave (&meta_info, meta);
}
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), NULL);
pool = g_object_new (GST_TYPE_DFB_BUFFER_POOL, NULL);
+ g_object_ref_sink (pool);
pool->dfbvideosink = gst_object_ref (dfbvideosink);
GST_LOG_OBJECT (pool, "new dfb buffer pool %p", pool);
dfbvideosink->backbuffer = FALSE;
dfbvideosink->pixel_format = DSPF_UNKNOWN;
- /* If we do it all by ourself we create the DirectFB context, get the
+ /* If we do it all by ourself we create the DirectFB context, get the
primary layer and use a fullscreen configuration */
if (!dfbvideosink->ext_surface) {
GST_DEBUG_OBJECT (dfbvideosink, "no external surface, taking over "
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink));
if (!gst_video_info_from_caps (&src_info, caps)) {
GST_WARNING_OBJECT (dfbvideosink, "failed getting video info");
+ gst_caps_unref (caps);
ret = GST_FLOW_ERROR;
goto beach;
}
str = gst_structure_get_string (structure, "format");
if (str == NULL) {
GST_WARNING ("failed grabbing fourcc from caps %" GST_PTR_FORMAT, caps);
+ gst_caps_unref (caps);
ret = GST_FLOW_ERROR;
goto beach;
}
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (dfbvideosink));
if (GST_IS_PAD (pad) && GST_IS_EVENT (event)) {
- gst_pad_send_event (pad, event);
-
+ if (!gst_pad_send_event (pad, gst_event_ref (event))) {
+ /* If upstream didn't handle the event we'll post a message with it
+ * for the application in case it wants to do something with it */
+ gst_element_post_message (GST_ELEMENT_CAST (dfbvideosink),
+ gst_navigation_message_new_event (GST_OBJECT_CAST (dfbvideosink),
+ event));
+ }
+ gst_event_unref (event);
gst_object_unref (pad);
}
}
gst_query_parse_allocation (query, &caps, &need_pool);
+ if (!caps) {
+ GST_WARNING_OBJECT (dfbvideosink, "Missing caps in allocation query.");
+ return FALSE;
+ }
+
+ /* FIXME re-using buffer pool breaks renegotiation */
if ((pool = dfbvideosink->pool))
gst_object_ref (pool);
return FALSE;
}
gst_structure_free (config);
+ } else {
+ GstVideoInfo info;
+
+ if (!gst_video_info_from_caps (&info, caps)) {
+ GST_WARNING_OBJECT (dfbvideosink,
+ "Invalid video caps in allocation query");
+ return FALSE;
+ }
+
+ size = info.size;
}
gst_query_add_allocation_pool (query, pool, size, 1, 0);
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
- dfbvideosink,
+ directfb,
"DirectFB video output plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gstreamer.git / blobdiff