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957282a65d
Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/* G-Streamer generic V4L element - generic V4L calls handling
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* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_V4LELEMENT_H__
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#define __GST_V4LELEMENT_H__
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#include <config.h>
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#include <gst/gst.h>
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#include <sys/types.h>
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#include <linux/videodev.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_V4LELEMENT \
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(gst_v4lelement_get_type())
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#define GST_V4LELEMENT(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4LELEMENT,GstV4lElement))
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#define GST_V4LELEMENT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4LELEMENT,GstV4lElementClass))
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#define GST_IS_V4LELEMENT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4LELEMENT))
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#define GST_IS_V4LELEMENT_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4LELEMENT))
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typedef struct _GstV4lElement GstV4lElement;
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typedef struct _GstV4lElementClass GstV4lElementClass;
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typedef struct _GstV4lRect {
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gint x, y, w, h;
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} GstV4lRect;
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struct _GstV4lElement {
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GstElement element;
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/* the video device */
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char *videodev;
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/* the video-device's file descriptor */
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gint video_fd;
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/* the video buffer (mmap()'ed) */
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guint8 *buffer;
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/* the video-device's capabilities */
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struct video_capability vcap;
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/* some more info about the current input's capabilities */
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struct video_channel vchan;
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/* caching values */
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gint channel;
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gint norm;
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gulong frequency;
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gboolean mute;
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gint volume;
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gint mode;
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gint brightness;
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gint hue;
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gint contrast;
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gint saturation;
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gchar *display;
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};
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struct _GstV4lElementClass {
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GstElementClass parent_class;
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/* signals */
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void (*open) (GstElement *element,
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const gchar *device);
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void (*close) (GstElement *element,
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const gchar *device);
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};
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GType gst_v4lelement_get_type(void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_V4LELEMENT_H__ */
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