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authorRonald S. Bultje <rbultje@ronald.bitfreak.net>2002-09-09 07:14:35 +0000
committerRonald S. Bultje <rbultje@ronald.bitfreak.net>2002-09-09 07:14:35 +0000
commit3ec5a0a054fd36290f006aa2101da35d03d9f5ed (patch)
treee7a928b150417982d8998a2849f541d3223218af /sys/v4l2/gstv4l2element.h
parent86c99507a557afbf84459d85e1d1d4b287b457d5 (diff)
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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.
Diffstat (limited to 'sys/v4l2/gstv4l2element.h')
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diff --git a/sys/v4l2/gstv4l2element.h b/sys/v4l2/gstv4l2element.h
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+/* 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__ */