mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-22 10:23:47 +00:00
Original commit message from CVS: * configure.ac: Check for X11 * sys/v4l2/gstv4l2object.c: (gst_v4l2_class_probe_devices): * sys/v4l2/gstv4l2object.h: * sys/v4l2/gstv4l2src.c: (gst_v4l2src_iface_supported): * sys/v4l2/gstv4l2src.h: * sys/v4l2/gstv4l2xoverlay.c: (gst_v4l2_xoverlay_open): * sys/v4l2/gstv4l2xoverlay.h: Code cleanups, fix debug macros
121 lines
3 KiB
C
121 lines
3 KiB
C
/* GStreamer
|
|
*
|
|
* gstv4l2src.h: BT8x8/V4L2 video source element
|
|
*
|
|
* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* Copyright (C) 2006 Edgard Lima <edgard.lima@indt.org.br>
|
|
*
|
|
* 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_V4L2SRC_H__
|
|
#define __GST_V4L2SRC_H__
|
|
|
|
|
|
#include <gstv4l2object.h>
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (v4l2src_debug);
|
|
|
|
#define GST_V4L2_MAX_BUFFERS 16
|
|
#define GST_V4L2_MIN_BUFFERS 2
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_V4L2SRC \
|
|
(gst_v4l2src_get_type())
|
|
#define GST_V4L2SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4L2SRC,GstV4l2Src))
|
|
#define GST_V4L2SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4L2SRC,GstV4l2SrcClass))
|
|
#define GST_IS_V4L2SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4L2SRC))
|
|
#define GST_IS_V4L2SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4L2SRC))
|
|
|
|
typedef struct _GstV4l2BufferPool GstV4l2BufferPool;
|
|
typedef struct _GstV4l2Buffer GstV4l2Buffer;
|
|
typedef struct _GstV4l2Src GstV4l2Src;
|
|
typedef struct _GstV4l2SrcClass GstV4l2SrcClass;
|
|
|
|
|
|
/* global info */
|
|
struct _GstV4l2BufferPool
|
|
{
|
|
gint refcount; /* number of users: 1 for every buffer, 1 for element */
|
|
gint video_fd;
|
|
guint buffer_count;
|
|
GstV4l2Buffer *buffers;
|
|
};
|
|
|
|
struct _GstV4l2Buffer
|
|
{
|
|
struct v4l2_buffer buffer;
|
|
guint8 *start;
|
|
guint length;
|
|
gint refcount; /* add 1 if in use by element, add 1 if in use by GstBuffer */
|
|
GstV4l2BufferPool *pool;
|
|
};
|
|
|
|
enum
|
|
{
|
|
QUEUE_STATE_ERROR = -1,
|
|
QUEUE_STATE_READY_FOR_QUEUE, /* the frame is ready to be queued for capture */
|
|
QUEUE_STATE_QUEUED, /* the frame is queued for capture */
|
|
QUEUE_STATE_SYNCED /* the frame is captured */
|
|
};
|
|
|
|
|
|
struct _GstV4l2Src
|
|
{
|
|
GstPushSrc pushsrc;
|
|
|
|
GstV4l2Object * v4l2object;
|
|
|
|
/* pads */
|
|
GstPad *srcpad;
|
|
|
|
/* internal lists */
|
|
GSList *formats; /* list of available capture formats */
|
|
|
|
/* buffers */
|
|
GstV4l2BufferPool *pool;
|
|
|
|
struct v4l2_requestbuffers breq;
|
|
struct v4l2_format format;
|
|
|
|
/* True if we want to stop */
|
|
gboolean quit, is_capturing;
|
|
|
|
gint offset;
|
|
|
|
/* how are we going to push buffers? */
|
|
guint fps_n, fps_d;
|
|
gboolean use_fixed_fps;
|
|
};
|
|
|
|
struct _GstV4l2SrcClass
|
|
{
|
|
GstPushSrcClass parent_class;
|
|
|
|
GList *v4l2_class_devices;
|
|
|
|
};
|
|
|
|
|
|
GType gst_v4l2src_get_type (void);
|
|
|
|
G_END_DECLS
|
|
#endif /* __GST_V4L2SRC_H__ */
|