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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;
/* 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__ */
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