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gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/opencv/gstopencvutils.h

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Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
/* GStreamer
* Copyright (C) <2010> Thiago Santos <thiago.sousa.santos@collabora.co.uk>
opencv: port to c++
2018-12-01 21:48:53 +00:00
* Copyright (C) <2018> Nicola Murino <nicola.murino@gmail.com>
Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
*
* 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
Fix FSF address https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 20:38:00 +00:00
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
*/
#ifndef __GST_OPENCV_UTILS__
#define __GST_OPENCV_UTILS__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
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
2010-11-19 20:23:41 +00:00
#include <gst/video/video.h>
opencv: GST_EXPORT -> GST_OPENCV_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:57:56 +00:00
#include <gst/opencv/opencv-prelude.h>
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
2010-11-19 20:23:41 +00:00
opencvutils: add extern C, for the opencv elements work. Adding G_BEGIN_DECLS and G_END_DECLS to gstopencvutils.h to allow C-style linking. https://bugzilla.gnome.org/show_bug.cgi?id=754148
2015-08-31 15:43:26 +00:00
G_BEGIN_DECLS
Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
opencv: GST_EXPORT -> GST_OPENCV_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:57:56 +00:00
GST_OPENCV_API
opencv: port to c++
2018-12-01 21:48:53 +00:00
gboolean gst_opencv_parse_cv_mat_params_from_caps
(GstCaps * caps, gint * width, gint * height, int * cv_type,
GError ** err);
Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
opencv: GST_EXPORT -> GST_OPENCV_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:57:56 +00:00
GST_OPENCV_API
opencv: port to c++
2018-12-01 21:48:53 +00:00
gboolean gst_opencv_cv_mat_params_from_video_info
(GstVideoInfo * info, gint * width, gint * height, int *cv_type,
GError ** err);
opencvvideofilter: Don't parse the caps twice The GstVideoFilter already provide caps parsed into GstVideoInfo. Avoid doing that twice by splitting the helper. https://bugzilla.gnome.org/show_bug.cgi?id=775288
2016-11-30 02:09:14 +00:00
opencv: GST_EXPORT -> GST_OPENCV_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:57:56 +00:00
GST_OPENCV_API
opencv: account for sparse/padded formats when converting caps to cv image type https://bugzilla.gnome.org/show_bug.cgi?id=774576
2016-11-26 12:34:26 +00:00
gboolean gst_opencv_cv_image_type_from_video_format (GstVideoFormat format,
int * cv_type, GError ** err);
opencv: GST_EXPORT -> GST_OPENCV_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:57:56 +00:00
GST_OPENCV_API
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
2010-11-19 20:23:41 +00:00
GstCaps * gst_opencv_caps_from_cv_image_type (int cv_type);
opencv: account for sparse/padded formats when converting caps to cv image type https://bugzilla.gnome.org/show_bug.cgi?id=774576
2016-11-26 12:34:26 +00:00
opencvutils: add extern C, for the opencv elements work. Adding G_BEGIN_DECLS and G_END_DECLS to gstopencvutils.h to allow C-style linking. https://bugzilla.gnome.org/show_bug.cgi?id=754148
2015-08-31 15:43:26 +00:00
G_END_DECLS
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
2010-11-19 20:23:41 +00:00
Adding gstopencvutils Adds a file to keep utilitary functions together
2010-05-16 03:46:01 +00:00
#endif /* __GST_OPENCV_UTILS__ */
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