this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el...

Original commit message from CVS:
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.

1 files changed, 110 insertions, 0 deletions

diff --git a/sys/v4l2/gstv4l2element.h b/sys/v4l2/gstv4l2element.h
new file mode 100644
index 00000000..617aad6d
--- /dev/null
+++ b/sys/v4l2/gstv4l2element.h
@@ -0,0 +1,110 @@
+/* G-Streamer generic V4L2 element
+ * Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_V4L2ELEMENT_H__
+#define __GST_V4L2ELEMENT_H__
+
+#include <gst/gst.h>
+#include <sys/types.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+
+#define GST_TYPE_V4L2ELEMENT \
+		(gst_v4l2element_get_type())
+#define GST_V4L2ELEMENT(obj) \
+		(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_V4L2ELEMENT, GstV4l2Element))
+#define GST_V4L2ELEMENT_CLASS(klass) \
+		(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_V4L2ELEMENT, GstV4l2ElementClass))
+#define GST_IS_V4L2ELEMENT(obj) \
+		(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_V4L2ELEMENT))
+#define GST_IS_V4L2ELEMENT_CLASS(obj) \
+		(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_V4L2ELEMENT))
+
+
+typedef	struct _GstV4l2Element		GstV4l2Element;
+typedef	struct _GstV4l2ElementClass	GstV4l2ElementClass;
+
+typedef struct _GstV4l2Rect {
+	gint x, y, w, h;
+} GstV4l2Rect;
+
+typedef enum {
+	GST_V4L2_ATTRIBUTE_VALUE_TYPE_INT,
+	GST_V4L2_ATTRIBUTE_VALUE_TYPE_BOOLEAN,
+	GST_V4L2_ATTRIBUTE_VALUE_TYPE_BUTTON,
+	GST_V4L2_ATTRIBUTE_VALUE_TYPE_LIST,
+} GstV4l2AttributeValueType;
+
+typedef enum {
+	GST_V4L2_ATTRIBUTE_TYPE_VIDEO,
+	GST_V4L2_ATTRIBUTE_TYPE_AUDIO,
+	GST_V4L2_ATTRIBUTE_TYPE_EFFECT,
+} GstV4l2AttributeType;
+
+typedef struct _GstV4l2Attribute {
+	gint index;
+	gchar *name;
+	GstV4l2AttributeType type;
+	GstV4l2AttributeValueType val_type;
+	gint min, max, value;
+	GList *list_items; /* in case of 'list' */
+} GstV4l2Attribute;
+
+struct _GstV4l2Element {
+	GstElement element;
+
+	/* the video device */
+	char *device;
+
+	/* the video-device's file descriptor */
+	gint video_fd;
+
+	/* the video buffer (mmap()'ed) */
+	guint8 **buffer;
+
+	/* the video-device's capabilities */
+	struct v4l2_capability vcap;
+
+	/* the toys available to us */
+	GList /*v4l2_fmtdesc*/ *formats; /* list of available capture formats */
+	GList /*v4l2_input*/ *inputs;
+	GList /*v4l2_output*/ *outputs;
+	GList /*v4l2_enumstd*/ *norms;
+	GList /*v4l2_queryctrl*/ *controls;
+	GList /*GList:v4l2_querymenu*/ *menus;
+
+	/* and last but not least, the current video window */
+	struct v4l2_window vwin;
+
+	/* caching values */
+	gint channel;
+	gint output;
+	gint norm;
+	gulong frequency;
+};
+
+struct _GstV4l2ElementClass {
+	GstElementClass parent_class;
+};
+
+
+GType gst_v4l2element_get_type (void);
+
+#endif /* __GST_V4L2ELEMENT_H__ */