1 files changed, 88 insertions, 0 deletions
diff --git a/v4l2-apps/libv4l/include/libv4lconvert.h b/v4l2-apps/libv4l/include/libv4lconvert.h
new file mode 100644
index 000000000..626c43473
--- /dev/null
+++ b/v4l2-apps/libv4l/include/libv4lconvert.h
@@ -0,0 +1,88 @@
+/*
+#             (C) 2008 Hans de Goede <j.w.r.degoede@hhs.nl>
+
+# 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 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 __LIBV4LCONVERT_H
+#define __LIBV4LCONVERT_H
+
+/* These headers are not needed by us, but by linux/videodev2.h,
+   which is broken on some systems and doesn't include them itself :( */
+#include <sys/time.h>
+#include <linux/types.h>
+#include <linux/ioctl.h>
+/* end broken header workaround includes */
+#include <linux/videodev2.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#if __GNUC__ >= 4
+#define LIBV4L_PUBLIC __attribute__ ((visibility("default")))
+#else
+#define LIBV4L_PUBLIC
+#endif
+
+struct v4lconvert_data;
+
+LIBV4L_PUBLIC struct v4lconvert_data *v4lconvert_create(int fd);
+LIBV4L_PUBLIC void v4lconvert_destroy(struct v4lconvert_data *data);
+
+/* With regards to dest_fmt just like VIDIOC_TRY_FMT, except that the try
+   format will succeed and return the requested V4L2_PIX_FMT_foo in dest_fmt if
+   the cam has a format from which v4lconvert can convert to dest_fmt.
+   The real format to which the cam should be set is returned through src_fmt
+   when not NULL. */
+LIBV4L_PUBLIC int v4lconvert_try_format(struct v4lconvert_data *data,
+  struct v4l2_format *dest_fmt, /* in / out */
+  struct v4l2_format *src_fmt /* out */
+);
+
+/* Just like VIDIOC_ENUM_FMT, except that the emulated formats are added at
+   the end of the list */
+LIBV4L_PUBLIC int v4lconvert_enum_fmt(struct v4lconvert_data *data, struct v4l2_fmtdesc *fmt);
+
+/* Is conversion necessary or can the app use the data directly? */
+LIBV4L_PUBLIC int v4lconvert_needs_conversion(struct v4lconvert_data *data,
+  const struct v4l2_format *src_fmt,   /* in */
+  const struct v4l2_format *dest_fmt); /* in */
+
+/* return value of -1 on error, otherwise the amount of bytes written to
+   dest */
+LIBV4L_PUBLIC int v4lconvert_convert(struct v4lconvert_data *data,
+  const struct v4l2_format *src_fmt,  /* in */
+  const struct v4l2_format *dest_fmt, /* in */
+  unsigned char *src, int src_size, unsigned char *dest, int dest_size);
+
+/* get a string describing the last error*/
+LIBV4L_PUBLIC const char *v4lconvert_get_error_message(struct v4lconvert_data *data);
+
+/* Just like VIDIOC_ENUM_FRAMESIZE, except that the framesizes of emulated
+   formats can be enumerated as well. */
+LIBV4L_PUBLIC int v4lconvert_enum_framesizes(struct v4lconvert_data *data,
+  struct v4l2_frmsizeenum *frmsize);
+
+/* Just like VIDIOC_ENUM_FRAMEINTERVALS, except that the intervals of emulated
+   formats can be enumerated as well. */
+LIBV4L_PUBLIC int v4lconvert_enum_frameintervals(struct v4lconvert_data *data,
+  struct v4l2_frmivalenum *frmival);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif