libv4l: add video processing: whitebalance and normalize

From: Hans de Goede <hdegoede@redhat.com>

As the version number shows this work is the basis for a beta release of the
0.6.x series, the big change here is the addition of video processing to libv4l
currently this only does whitebalance and normalizing (which turns out
to be useless for most cams) but the basic framework for doing video
processing, and being able to control it through fake v4l2 controls using
for example v4l2ucp is there.
The initial version of this code was written by 3 of my computer science
students: Elmar Kleijn, Sjoerd Piepenbrink and Radjnies Bhansingh.
This initial hg commit is a cleaned up and somewhat bug fixed version of
their code.

Priority: normal

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/v4l2-apps/libv4l/libv4lconvert/control/libv4lcontrol-priv.h b/v4l2-apps/libv4l/libv4lconvert/control/libv4lcontrol-priv.h
new file mode 100644
index 000000000..59305a237
--- /dev/null
+++ b/v4l2-apps/libv4l/libv4lconvert/control/libv4lcontrol-priv.h
@@ -0,0 +1,33 @@
+/*
+#             (C) 2008-2009 Elmar Kleijn <elmar_kleijn@hotmail.com>
+#             (C) 2008-2009 Sjoerd Piepenbrink <need4weed@gmail.com>
+#             (C) 2008-2009 Radjnies Bhansingh <radjnies@gmail.com>
+#             (C) 2008-2009 Hans de Goede <hdegoede@redhat.com>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifndef __LIBV4LCONTROL_PRIV_H
+#define __LIBV4LCONTROL_PRIV_H
+
+#define V4LCONTROL_SHM_SIZE 4096
+
+struct v4lcontrol_data {
+  int fd; /* Knowledge of the fd is needed in original syscalls */
+  unsigned int controls; /* Which controls to use for this device */
+  unsigned int *shm_values; /* shared memory control value store */
+};
+
+#endif