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Add new interface to control video orientation (fixes #354908)
Original commit message from CVS: * docs/libs/gst-plugins-base-libs-docs.sgml: * docs/libs/gst-plugins-base-libs.types: * gst-libs/gst/interfaces/Makefile.am: * gst-libs/gst/interfaces/videoorientation.c: (gst_video_orientation_get_type), (gst_video_orientation_iface_init), (gst_video_orientation_get_hflip), (gst_video_orientation_get_vflip), (gst_video_orientation_get_hcenter), (gst_video_orientation_get_vcenter), (gst_video_orientation_set_hflip), (gst_video_orientation_set_vflip), (gst_video_orientation_set_hcenter), (gst_video_orientation_set_vcenter): * gst-libs/gst/interfaces/videoorientation.h: Add new interface to control video orientation (fixes #354908)
This commit is contained in:
Stefan Kost
parent
935f469081
commit
ce5339801d
19
ChangeLog
19
ChangeLog
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@ -1,3 +1,22 @@
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2006-09-18 Stefan Kost,,, <ensonic@users.sf.net>
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* docs/libs/gst-plugins-base-libs-docs.sgml:
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* docs/libs/gst-plugins-base-libs.types:
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* gst-libs/gst/interfaces/Makefile.am:
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* gst-libs/gst/interfaces/videoorientation.c:
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(gst_video_orientation_get_type),
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(gst_video_orientation_iface_init),
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(gst_video_orientation_get_hflip),
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(gst_video_orientation_get_vflip),
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(gst_video_orientation_get_hcenter),
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(gst_video_orientation_get_vcenter),
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(gst_video_orientation_set_hflip),
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(gst_video_orientation_set_vflip),
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(gst_video_orientation_set_hcenter),
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(gst_video_orientation_set_vcenter):
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* gst-libs/gst/interfaces/videoorientation.h:
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Add new interface to control video orientation (fixes #354908)
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2006-09-18 Stefan Kost <ensonic@users.sf.net>
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* gst/videotestsrc/gstvideotestsrc.c:
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@ -30,6 +30,7 @@
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<!ENTITY GstTuner SYSTEM "xml/gsttuner.xml">
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<!ENTITY GstTunerChannel SYSTEM "xml/gsttunerchannel.xml">
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<!ENTITY GstTunerNorm SYSTEM "xml/gsttunernorm.xml">
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<!ENTITY GstVideoOrientation SYSTEM "xml/gstvideoorientation.xml">
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<!ENTITY GstXOverlay SYSTEM "xml/gstxoverlay.xml">
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<!-- netbuffer -->
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<!ENTITY GstNetBuffer SYSTEM "xml/gstnetbuffer.xml">
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@ -123,6 +124,7 @@
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&GstTuner;
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&GstTunerChannel;
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&GstTunerNorm;
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&GstVideoorientation;
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&GstXOverlay;
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</chapter>
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@ -36,6 +36,8 @@ gst_property_probe_get_type
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gst_tuner_get_type
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gst_tuner_channel_get_type
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gst_tuner_norm_get_type
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#include <gst/interfaces/videoorientation.h>
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gst_video_orientation_get_type
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#include <gst/interfaces/xoverlay.h>
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gst_x_overlay_get_type
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@ -13,6 +13,7 @@ headers_interfaces = \
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tuner.h \
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tunernorm.h \
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tunerchannel.h \
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videoorientation.h \
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xoverlay.h
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# variables used for enum/marshal generation
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@ -47,6 +48,7 @@ libgstinterfaces_@GST_MAJORMINOR@_la_SOURCES = \
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tuner.c \
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tunernorm.c \
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tunerchannel.c \
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videoorientation.c \
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xoverlay.c
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nodist_libgstinterfaces_@GST_MAJORMINOR@_la_SOURCES = \
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260
gst-libs/gst/interfaces/videoorientation.c
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260
gst-libs/gst/interfaces/videoorientation.c
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@ -0,0 +1,260 @@
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/* GStreamer
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* Copyright (C) 2006 Nokia <stefan.kost@nokia.com>
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*
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* videoorientation.c: video flipping and centering interface
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "videoorientation.h"
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#include "interfaces-marshal.h"
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#include <string.h>
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/**
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* SECTION:gstvideoorientation
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* @short_description: Interface for elements providing video orientation
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* controls
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*
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* The interface allows unified access to control flipping and autocenter
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* operation of video-sources or operators.
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*/
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static void gst_video_orientation_iface_init (GstVideoOrientationInterface *
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iface);
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GType
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gst_video_orientation_get_type (void)
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{
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static GType gst_video_orientation_type = 0;
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if (!gst_video_orientation_type) {
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static const GTypeInfo gst_video_orientation_info = {
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sizeof (GstVideoOrientationInterface),
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(GBaseInitFunc) gst_video_orientation_iface_init,
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NULL,
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NULL,
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NULL,
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NULL,
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0,
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0,
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NULL,
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};
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gst_video_orientation_type = g_type_register_static (G_TYPE_INTERFACE,
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"GstVideoOrientation", &gst_video_orientation_info, 0);
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g_type_interface_add_prerequisite (gst_video_orientation_type,
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GST_TYPE_IMPLEMENTS_INTERFACE);
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}
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return gst_video_orientation_type;
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}
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static void
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gst_video_orientation_iface_init (GstVideoOrientationInterface * iface)
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{
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/* default virtual functions */
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iface->get_hflip = NULL;
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iface->get_vflip = NULL;
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iface->get_hcenter = NULL;
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iface->get_vcenter = NULL;
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iface->set_hflip = NULL;
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iface->set_vflip = NULL;
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iface->set_hcenter = NULL;
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iface->set_vcenter = NULL;
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}
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/**
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* gst_video_orientation_get_hflip:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @flip: return location for the result
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*
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* Get the horizontal flipping state (%TRUE for flipped) from the given object.
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*
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* Returns: %TRUE in case the element supports flipping
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*/
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gboolean
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gst_video_orientation_get_hflip (GstVideoOrientation * video_orientation,
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gboolean * flip)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->get_hflip) {
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return iface->get_hflip (video_orientation, flip);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_get_vflip:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @flip: return location for the result
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*
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* Get the vertical flipping state (%TRUE for flipped) from the given object.
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*
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* Returns: %TRUE in case the element supports flipping
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*/
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gboolean
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gst_video_orientation_get_vflip (GstVideoOrientation * video_orientation,
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gboolean * flip)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->get_vflip) {
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return iface->get_vflip (video_orientation, flip);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_get_hcenter:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @center: return location for the result
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*
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* Get the horizontal centering offset from the given object.
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*
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* Returns: %TRUE in case the element supports centering
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*/
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gboolean
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gst_video_orientation_get_hcenter (GstVideoOrientation * video_orientation,
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gint * center)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->get_hcenter) {
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return iface->get_hcenter (video_orientation, center);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_get_vcenter:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @center: return location for the result
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*
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* Get the vertical centering offset from the given object.
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*
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* Returns: %TRUE in case the element supports centering
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*/
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gboolean
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gst_video_orientation_get_vcenter (GstVideoOrientation * video_orientation,
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gint * center)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->get_vcenter) {
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return iface->get_vcenter (video_orientation, center);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_set_hflip:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @flip: use flipping
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*
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* Set the horizontal flipping state (%TRUE for flipped) for the given object.
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*
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* Returns: %TRUE in case the element supports flipping
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*/
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gboolean
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gst_video_orientation_set_hflip (GstVideoOrientation * video_orientation,
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gboolean flip)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->set_hflip) {
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return iface->set_hflip (video_orientation, flip);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_set_vflip:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @flip: use flipping
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*
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* Set the vertical flipping state (%TRUE for flipped) for the given object.
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*
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* Returns: %TRUE in case the element supports flipping
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*/
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gboolean
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gst_video_orientation_set_vflip (GstVideoOrientation * video_orientation,
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gboolean flip)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->set_vflip) {
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return iface->set_vflip (video_orientation, flip);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_set_hcenter:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @center: centering offset
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*
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* Set the horizontal centering offset for the given object.
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*
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* Returns: %TRUE in case the element supports centering
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*/
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gboolean
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gst_video_orientation_set_hcenter (GstVideoOrientation * video_orientation,
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gint center)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->set_hcenter) {
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return iface->set_hcenter (video_orientation, center);
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}
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return FALSE;
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}
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/**
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* gst_video_orientation_set_vcenter:
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* @video_orientation: #GstVideoOrientation interface of a #GstElement
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* @center: centering offset
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*
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* Set the vertical centering offset for the given object.
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*
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* Returns: %TRUE in case the element supports centering
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*/
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gboolean
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gst_video_orientation_set_vcenter (GstVideoOrientation * video_orientation,
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gint center)
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{
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GstVideoOrientationInterface *iface =
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GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);
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if (iface->set_vcenter) {
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return iface->set_vcenter (video_orientation, center);
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}
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return FALSE;
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}
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73
gst-libs/gst/interfaces/videoorientation.h
Normal file
73
gst-libs/gst/interfaces/videoorientation.h
Normal file
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@ -0,0 +1,73 @@
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/* GStreamer
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* Copyright (C) 2006 Nokia <stefan.kost@nokia.com
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*
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* videoorientation.h: video flipping and centering interface
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_ORIENTATION_H__
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#define __GST_VIDEO_ORIENTATION_H__
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#include <gst/gst.h>
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#include <gst/interfaces/interfaces-enumtypes.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_ORIENTATION \
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(gst_video_orientation_get_type ())
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#define GST_VIDEO_ORIENTATION(obj) \
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(GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientation))
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#define GST_IS_VIDEO_ORIENTATION(obj) \
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(GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_ORIENTATION))
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#define GST_VIDEO_ORIENTATION_GET_IFACE(inst) \
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(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientationInterface))
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typedef struct _GstVideoOrientation GstVideoOrientation;
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typedef struct _GstVideoOrientationInterface {
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GTypeInterface parent;
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/* virtual functions */
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gboolean (* get_hflip) (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean (* get_vflip) (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean (* get_hcenter) (GstVideoOrientation *video_orientation, gint *center);
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gboolean (* get_vcenter) (GstVideoOrientation *video_orientation, gint *center);
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gboolean (* set_hflip) (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean (* set_vflip) (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean (* set_hcenter) (GstVideoOrientation *video_orientation, gint center);
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gboolean (* set_vcenter) (GstVideoOrientation *video_orientation, gint center);
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gpointer _gst_reserved[GST_PADDING];
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} GstVideoOrientationInterface;
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GType gst_video_orientation_get_type (void);
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/* virtual class function wrappers */
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gboolean gst_video_orientation_get_hflip (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean gst_video_orientation_get_vflip (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean gst_video_orientation_get_hcenter (GstVideoOrientation *video_orientation, gint *center);
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gboolean gst_video_orientation_get_vcenter (GstVideoOrientation *video_orientation, gint *center);
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gboolean gst_video_orientation_set_hflip (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean gst_video_orientation_set_vflip (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean gst_video_orientation_set_hcenter (GstVideoOrientation *video_orientation, gint center);
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gboolean gst_video_orientation_set_vcenter (GstVideoOrientation *video_orientation, gint center);
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G_END_DECLS
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#endif /* __GST_VIDEO_ORIENTATION_H__ */
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