1 /* GStreamer

     2  *

     3  * v4lsrc_calls.h: functions for V4L video source

     4  *

     5  * Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>

     6  *

     7  * This library is free software; you can redistribute it and/or

     8  * modify it under the terms of the GNU Library General Public

     9  * License as published by the Free Software Foundation; either

    10  * version 2 of the License, or (at your option) any later version.

    11  *

    12  * This library is distributed in the hope that it will be useful,

    13  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    15  * Library General Public License for more details.

    16  *

    17  * You should have received a copy of the GNU Library General Public

    18  * License along with this library; if not, write to the

    19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    20  * Boston, MA 02111-1307, USA.

    21  */

    22 

    23 #ifndef __V4L_SRC_CALLS_H__

    24 #define __V4L_SRC_CALLS_H__

    25 

    26 #include "gstv4lsrc.h"

    27 #include "v4l_calls.h"

    28 

    29 

    30 G_BEGIN_DECLS

    31 

    32 

    33 /* frame grabbing/capture (palette = VIDEO_PALETTE_* - see videodev.h) */

    34 gboolean gst_v4lsrc_set_capture    (GstV4lSrc *v4lsrc, gint width, gint height, gint palette);

    35 gboolean gst_v4lsrc_capture_init   (GstV4lSrc *v4lsrc);

    36 gboolean gst_v4lsrc_capture_start  (GstV4lSrc *v4lsrc);

    37 gboolean gst_v4lsrc_grab_frame     (GstV4lSrc *v4lsrc, gint *num);

    38 guint8 * gst_v4lsrc_get_buffer     (GstV4lSrc *v4lsrc, gint  num);

    39 gboolean gst_v4lsrc_requeue_frame  (GstV4lSrc *v4lsrc, gint  num);

    40 gboolean gst_v4lsrc_capture_stop   (GstV4lSrc *v4lsrc);

    41 gboolean gst_v4lsrc_capture_deinit (GstV4lSrc *v4lsrc);

    42 gboolean gst_v4lsrc_get_fps        (GstV4lSrc * v4lsrc, gint *fps_n, gint *fps_d);

    43 GValue * gst_v4lsrc_get_fps_list   (GstV4lSrc * v4lsrc);

    44 GstBuffer *gst_v4lsrc_buffer_new   (GstV4lSrc * v4lsrc, gint num);

    45 

    46 /* "the ugliest hack ever, now available at your local mirror" */

    47 gboolean gst_v4lsrc_try_capture    (GstV4lSrc *v4lsrc, gint width, gint height, gint palette);

    48 

    49 /* For debug purposes, share the palette names */

    50 #ifndef GST_DISABLE_GST_DEBUG

    51 const char *gst_v4lsrc_palette_name (int i);

    52 #endif

    53 

    54 

    55 G_END_DECLS

    56 

    57 

    58 #endif /* __V4L_SRC_CALLS_H__ */