gstreamer/ext/opencv/gstopencvutils.h
Josh Doe 6e43f75df3 opencv: fix caps issues and extend supported caps for some elements
Some elements had vague caps, such as "video/x-raw-rgb", which caused problems
at least with textwrite. For other elements, the underlying OpenCV functions
support more than just one image type, so I increased the number of supported
caps.

I created a utility function "gst_opencv_caps_from_cv_image_type", so each
element creates caps directly from OpenCV image types, such as CV_8UC1 for
8-bit grayscale. This function uses gstvideo to create uniform caps.

https://bugzilla.gnome.org/show_bug.cgi?id=635304
2010-11-22 22:25:18 -03:00

46 lines
1.5 KiB
C

/* GStreamer
* Copyright (C) <2010> Thiago Santos <thiago.sousa.santos@collabora.co.uk>
*
* gstopencvutils.h: miscellaneous utility functions
*
* 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_OPENCV_UTILS__
#define __GST_OPENCV_UTILS__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <cv.h>
gboolean
gst_opencv_get_ipldepth (gint depth, gint bpp, gint * ipldepth);
gboolean gst_opencv_parse_iplimage_params_from_caps
(GstCaps * caps, gint * width, gint * height, gint * depth,
gint * channels, GError ** err);
gboolean gst_opencv_parse_iplimage_params_from_structure
(GstStructure * structure, gint * width, gint * height, gint * depth,
gint * channels, GError ** err);
GstCaps * gst_opencv_caps_from_cv_image_type (int cv_type);
#endif /* __GST_OPENCV_UTILS__ */