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Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
63 lines
2.8 KiB
C
63 lines
2.8 KiB
C
/* G-Streamer hardware MJPEG video source plugin
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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 __V4L_MJPEG_SRC_CALLS_H__
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#define __V4L_MJPEG_SRC_CALLS_H__
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#include "gstv4lmjpegsrc.h"
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#include "v4l_calls.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* frame grabbing/capture */
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gboolean gst_v4lmjpegsrc_set_buffer (GstV4lMjpegSrc *v4lmjpegsrc,
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gint numbufs,
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gint bufsize);
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gboolean gst_v4lmjpegsrc_set_capture (GstV4lMjpegSrc *v4lmjpegsrc,
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gint decimation,
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gint quality);
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gboolean gst_v4lmjpegsrc_set_capture_m (GstV4lMjpegSrc *v4lmjpegsrc,
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gint x_offset,
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gint y_offset,
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gint width,
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gint height,
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gint h_decimation,
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gint v_decimation,
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gint quality);
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gboolean gst_v4lmjpegsrc_capture_init (GstV4lMjpegSrc *v4lmjpegsrc);
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gboolean gst_v4lmjpegsrc_capture_start (GstV4lMjpegSrc *v4lmjpegsrc);
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gboolean gst_v4lmjpegsrc_grab_frame (GstV4lMjpegSrc *v4lmjpegsrc,
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gint *num,
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gint *size);
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guint8 * gst_v4lmjpegsrc_get_buffer (GstV4lMjpegSrc *v4lmjpegsrc,
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gint num);
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gboolean gst_v4lmjpegsrc_requeue_frame (GstV4lMjpegSrc *v4lmjpegsrc,
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gint num);
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gboolean gst_v4lmjpegsrc_capture_stop (GstV4lMjpegSrc *v4lmjpegsrc);
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gboolean gst_v4lmjpegsrc_capture_deinit (GstV4lMjpegSrc *v4lmjpegsrc);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __V4L_MJPEG_SRC_CALLS_H__ */
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