mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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The change should have been from PARAM_CONSTRUCT_ONLY to
PARAM_CONSTRUCT, otherwise bindings are affected, since
they look for the CONSTRUCT flag.
See ec55363d
482 lines
17 KiB
C
482 lines
17 KiB
C
/* GStreamer
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*
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* Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
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*
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* gstargbcontrolbinding.c: Attachment for multiple control sources to gargb
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* properties
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:gstargbcontrolbinding
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* @short_description: attachment for control sources to argb properties
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*
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* A value mapping object that attaches multiple control sources to a guint
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* gobject properties representing a color. A control value of 0.0 will turn the
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* color component off and a value of 1.0 will be the color level.
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*/
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#include <glib-object.h>
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#include <gst/gst.h>
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#include "gstargbcontrolbinding.h"
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#include <gst/math-compat.h>
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#define GST_CAT_DEFAULT control_binding_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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static GObject *gst_argb_control_binding_constructor (GType type,
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guint n_construct_params, GObjectConstructParam * construct_params);
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static void gst_argb_control_binding_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_argb_control_binding_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static void gst_argb_control_binding_dispose (GObject * object);
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static void gst_argb_control_binding_finalize (GObject * object);
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static gboolean gst_argb_control_binding_sync_values (GstControlBinding * _self,
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GstObject * object, GstClockTime timestamp, GstClockTime last_sync);
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static GValue *gst_argb_control_binding_get_value (GstControlBinding * _self,
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GstClockTime timestamp);
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static gboolean gst_argb_control_binding_get_value_array (GstControlBinding *
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_self, GstClockTime timestamp, GstClockTime interval, guint n_values,
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gpointer values);
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static gboolean gst_argb_control_binding_get_g_value_array (GstControlBinding *
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_self, GstClockTime timestamp, GstClockTime interval, guint n_values,
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GValue * values);
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "gstargbcontrolbinding", 0, \
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"dynamic parameter control source attachment");
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#define gst_argb_control_binding_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstARGBControlBinding, gst_argb_control_binding,
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GST_TYPE_CONTROL_BINDING, _do_init);
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enum
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{
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PROP_0,
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PROP_CS_A,
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PROP_CS_R,
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PROP_CS_G,
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PROP_CS_B,
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PROP_LAST
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};
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static GParamSpec *properties[PROP_LAST];
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/* vmethods */
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static void
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gst_argb_control_binding_class_init (GstARGBControlBindingClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstControlBindingClass *control_binding_class =
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GST_CONTROL_BINDING_CLASS (klass);
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gobject_class->constructor = gst_argb_control_binding_constructor;
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gobject_class->set_property = gst_argb_control_binding_set_property;
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gobject_class->get_property = gst_argb_control_binding_get_property;
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gobject_class->dispose = gst_argb_control_binding_dispose;
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gobject_class->finalize = gst_argb_control_binding_finalize;
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control_binding_class->sync_values = gst_argb_control_binding_sync_values;
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control_binding_class->get_value = gst_argb_control_binding_get_value;
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control_binding_class->get_value_array =
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gst_argb_control_binding_get_value_array;
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control_binding_class->get_g_value_array =
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gst_argb_control_binding_get_g_value_array;
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properties[PROP_CS_A] =
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g_param_spec_object ("control-source-a", "ControlSource A",
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"The control source for the alpha color component",
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GST_TYPE_CONTROL_SOURCE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
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properties[PROP_CS_R] =
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g_param_spec_object ("control-source-r", "ControlSource R",
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"The control source for the red color component",
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GST_TYPE_CONTROL_SOURCE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
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properties[PROP_CS_G] =
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g_param_spec_object ("control-source-g", "ControlSource G",
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"The control source for the green color component",
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GST_TYPE_CONTROL_SOURCE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
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properties[PROP_CS_B] =
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g_param_spec_object ("control-source-b", "ControlSource B",
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"The control source for the blue color component",
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GST_TYPE_CONTROL_SOURCE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (gobject_class, PROP_LAST, properties);
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}
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static void
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gst_argb_control_binding_init (GstARGBControlBinding * self)
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{
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}
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static GObject *
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gst_argb_control_binding_constructor (GType type, guint n_construct_params,
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GObjectConstructParam * construct_params)
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{
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GstARGBControlBinding *self;
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self =
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GST_ARGB_CONTROL_BINDING (G_OBJECT_CLASS (parent_class)->constructor
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(type, n_construct_params, construct_params));
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if (GST_CONTROL_BINDING_PSPEC (self)) {
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if (!(G_PARAM_SPEC_VALUE_TYPE (GST_CONTROL_BINDING_PSPEC (self)) ==
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G_TYPE_UINT)) {
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GST_WARNING ("can't bind to paramspec type '%s'",
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G_PARAM_SPEC_TYPE_NAME (GST_CONTROL_BINDING_PSPEC (self)));
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GST_CONTROL_BINDING_PSPEC (self) = NULL;
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} else {
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g_value_init (&self->cur_value, G_TYPE_UINT);
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}
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}
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return (GObject *) self;
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}
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static void
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gst_argb_control_binding_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (object);
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switch (prop_id) {
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case PROP_CS_A:
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gst_object_replace ((GstObject **) & self->cs_a,
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g_value_dup_object (value));
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break;
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case PROP_CS_R:
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gst_object_replace ((GstObject **) & self->cs_r,
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g_value_dup_object (value));
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break;
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case PROP_CS_G:
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gst_object_replace ((GstObject **) & self->cs_g,
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g_value_dup_object (value));
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break;
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case PROP_CS_B:
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gst_object_replace ((GstObject **) & self->cs_b,
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g_value_dup_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_argb_control_binding_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (object);
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switch (prop_id) {
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case PROP_CS_A:
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g_value_set_object (value, self->cs_a);
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break;
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case PROP_CS_R:
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g_value_set_object (value, self->cs_r);
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break;
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case PROP_CS_G:
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g_value_set_object (value, self->cs_g);
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break;
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case PROP_CS_B:
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g_value_set_object (value, self->cs_b);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_argb_control_binding_dispose (GObject * object)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (object);
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gst_object_replace ((GstObject **) & self->cs_a, NULL);
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gst_object_replace ((GstObject **) & self->cs_r, NULL);
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gst_object_replace ((GstObject **) & self->cs_g, NULL);
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gst_object_replace ((GstObject **) & self->cs_b, NULL);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_argb_control_binding_finalize (GObject * object)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (object);
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g_value_unset (&self->cur_value);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gst_argb_control_binding_sync_values (GstControlBinding * _self,
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GstObject * object, GstClockTime timestamp, GstClockTime last_sync)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (_self);
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gdouble src_val_a = 1.0, src_val_r = 0.0, src_val_g = 0.0, src_val_b = 0.0;
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gboolean ret = TRUE;
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g_return_val_if_fail (GST_IS_ARGB_CONTROL_BINDING (self), FALSE);
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g_return_val_if_fail (GST_CONTROL_BINDING_PSPEC (self), FALSE);
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GST_LOG_OBJECT (object, "property '%s' at ts=%" GST_TIME_FORMAT,
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_self->name, GST_TIME_ARGS (timestamp));
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if (self->cs_a)
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ret &= gst_control_source_get_value (self->cs_a, timestamp, &src_val_a);
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if (self->cs_r)
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ret &= gst_control_source_get_value (self->cs_r, timestamp, &src_val_r);
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if (self->cs_g)
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ret &= gst_control_source_get_value (self->cs_g, timestamp, &src_val_g);
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if (self->cs_b)
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ret &= gst_control_source_get_value (self->cs_b, timestamp, &src_val_b);
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if (G_LIKELY (ret)) {
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guint src_val = (((guint) (CLAMP (src_val_a, 0.0, 1.0) * 255)) << 24) |
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(((guint) (CLAMP (src_val_r, 0.0, 1.0) * 255)) << 16) |
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(((guint) (CLAMP (src_val_g, 0.0, 1.0) * 255)) << 8) |
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((guint) (CLAMP (src_val_b, 0.0, 1.0) * 255));
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GST_LOG_OBJECT (object, " new value 0x%08x", src_val);
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/* always set the value for first time, but then only if it changed
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* this should limit g_object_notify invocations.
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* FIXME: can we detect negative playback rates?
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*/
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if ((timestamp < last_sync) || (src_val != self->last_value)) {
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GValue *dst_val = &self->cur_value;
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g_value_set_uint (dst_val, src_val);
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/* we can make this faster
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* http://bugzilla.gnome.org/show_bug.cgi?id=536939
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*/
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g_object_set_property ((GObject *) object, _self->name, dst_val);
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self->last_value = src_val;
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}
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} else {
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GST_DEBUG_OBJECT (object, "no control value for param %s", _self->name);
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}
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return (ret);
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}
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static GValue *
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gst_argb_control_binding_get_value (GstControlBinding * _self,
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GstClockTime timestamp)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (_self);
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GValue *dst_val = NULL;
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gdouble src_val_a = 1.0, src_val_r = 0.0, src_val_g = 0.0, src_val_b = 0.0;
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gboolean ret = TRUE;
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g_return_val_if_fail (GST_IS_ARGB_CONTROL_BINDING (self), NULL);
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g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), NULL);
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g_return_val_if_fail (GST_CONTROL_BINDING_PSPEC (self), FALSE);
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/* get current value via control source */
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if (self->cs_a)
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ret &= gst_control_source_get_value (self->cs_a, timestamp, &src_val_a);
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if (self->cs_r)
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ret &= gst_control_source_get_value (self->cs_r, timestamp, &src_val_r);
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if (self->cs_g)
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ret &= gst_control_source_get_value (self->cs_g, timestamp, &src_val_g);
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if (self->cs_b)
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ret &= gst_control_source_get_value (self->cs_b, timestamp, &src_val_b);
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if (G_LIKELY (ret)) {
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guint src_val = (((guint) (CLAMP (src_val_a, 0.0, 1.0) * 255)) << 24) |
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(((guint) (CLAMP (src_val_r, 0.0, 1.0) * 255)) << 16) |
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(((guint) (CLAMP (src_val_g, 0.0, 1.0) * 255)) << 8) |
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((guint) (CLAMP (src_val_b, 0.0, 1.0) * 255));
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dst_val = g_new0 (GValue, 1);
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g_value_init (dst_val, G_TYPE_UINT);
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g_value_set_uint (dst_val, src_val);
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} else {
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GST_LOG ("no control value for property %s at ts %" GST_TIME_FORMAT,
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_self->name, GST_TIME_ARGS (timestamp));
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}
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return dst_val;
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}
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static gboolean
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gst_argb_control_binding_get_value_array (GstControlBinding * _self,
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GstClockTime timestamp, GstClockTime interval, guint n_values,
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gpointer values_)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (_self);
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gint i;
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gdouble *src_val_a = NULL, *src_val_r = NULL, *src_val_g = NULL, *src_val_b =
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NULL;
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guint *values = (guint *) values_;
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gboolean ret = TRUE;
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g_return_val_if_fail (GST_IS_ARGB_CONTROL_BINDING (self), FALSE);
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g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), FALSE);
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g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (interval), FALSE);
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g_return_val_if_fail (values, FALSE);
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g_return_val_if_fail (GST_CONTROL_BINDING_PSPEC (self), FALSE);
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if (self->cs_a) {
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src_val_a = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_a, timestamp,
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interval, n_values, src_val_a);
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}
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if (self->cs_r) {
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src_val_r = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_r, timestamp,
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interval, n_values, src_val_r);
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}
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if (self->cs_g) {
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src_val_g = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_g, timestamp,
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interval, n_values, src_val_g);
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}
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if (self->cs_b) {
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src_val_b = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_b, timestamp,
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interval, n_values, src_val_b);
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}
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if (G_LIKELY (ret)) {
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for (i = 0; i < n_values; i++) {
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gdouble a = 1.0, r = 0.0, g = 0.0, b = 0.0;
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if (src_val_a && !isnan (src_val_a[i]))
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a = src_val_a[i];
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if (src_val_r && !isnan (src_val_r[i]))
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r = src_val_r[i];
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if (src_val_g && !isnan (src_val_g[i]))
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g = src_val_g[i];
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if (src_val_b && !isnan (src_val_b[i]))
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b = src_val_b[i];
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values[i] = (((guint) (CLAMP (a, 0.0, 1.0) * 255)) << 24) |
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(((guint) (CLAMP (r, 0.0, 1.0) * 255)) << 16) |
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(((guint) (CLAMP (g, 0.0, 1.0) * 255)) << 8) |
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((guint) (CLAMP (b, 0.0, 1.0) * 255));
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}
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} else {
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GST_LOG ("failed to get control value for property %s at ts %"
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GST_TIME_FORMAT, _self->name, GST_TIME_ARGS (timestamp));
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}
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g_free (src_val_a);
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g_free (src_val_r);
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g_free (src_val_g);
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g_free (src_val_b);
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return ret;
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}
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static gboolean
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gst_argb_control_binding_get_g_value_array (GstControlBinding * _self,
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GstClockTime timestamp, GstClockTime interval, guint n_values,
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GValue * values)
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{
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GstARGBControlBinding *self = GST_ARGB_CONTROL_BINDING (_self);
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gint i;
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gdouble *src_val_a = NULL, *src_val_r = NULL, *src_val_g = NULL, *src_val_b =
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NULL;
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guint src_val;
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gboolean ret = TRUE;
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g_return_val_if_fail (GST_IS_ARGB_CONTROL_BINDING (self), FALSE);
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g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), FALSE);
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g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (interval), FALSE);
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g_return_val_if_fail (values, FALSE);
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g_return_val_if_fail (GST_CONTROL_BINDING_PSPEC (self), FALSE);
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if (self->cs_a) {
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src_val_a = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_a, timestamp,
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interval, n_values, src_val_a);
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}
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if (self->cs_r) {
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src_val_r = g_new0 (gdouble, n_values);
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ret &= gst_control_source_get_value_array (self->cs_r, timestamp,
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interval, n_values, src_val_r);
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}
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if (self->cs_g) {
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src_val_g = g_new0 (gdouble, n_values);
|
|
ret &= gst_control_source_get_value_array (self->cs_g, timestamp,
|
|
interval, n_values, src_val_g);
|
|
}
|
|
if (self->cs_b) {
|
|
src_val_b = g_new0 (gdouble, n_values);
|
|
ret &= gst_control_source_get_value_array (self->cs_b, timestamp,
|
|
interval, n_values, src_val_b);
|
|
}
|
|
if (G_LIKELY (ret)) {
|
|
for (i = 0; i < n_values; i++) {
|
|
gdouble a = 1.0, r = 0.0, g = 0.0, b = 0.0;
|
|
if (src_val_a && !isnan (src_val_a[i]))
|
|
a = src_val_a[i];
|
|
if (src_val_r && !isnan (src_val_r[i]))
|
|
r = src_val_r[i];
|
|
if (src_val_g && !isnan (src_val_g[i]))
|
|
g = src_val_g[i];
|
|
if (src_val_b && !isnan (src_val_b[i]))
|
|
b = src_val_b[i];
|
|
src_val = (((guint) (CLAMP (a, 0.0, 1.0) * 255)) << 24) |
|
|
(((guint) (CLAMP (r, 0.0, 1.0) * 255)) << 16) |
|
|
(((guint) (CLAMP (g, 0.0, 1.0) * 255)) << 8) |
|
|
((guint) (CLAMP (b, 0.0, 1.0) * 255));
|
|
g_value_init (&values[i], G_TYPE_UINT);
|
|
g_value_set_uint (&values[i], src_val);
|
|
}
|
|
} else {
|
|
GST_LOG ("failed to get control value for property %s at ts %"
|
|
GST_TIME_FORMAT, _self->name, GST_TIME_ARGS (timestamp));
|
|
}
|
|
g_free (src_val_a);
|
|
g_free (src_val_r);
|
|
g_free (src_val_g);
|
|
g_free (src_val_b);
|
|
return ret;
|
|
}
|
|
|
|
/* functions */
|
|
|
|
/**
|
|
* gst_argb_control_binding_new:
|
|
* @object: the object of the property
|
|
* @property_name: the property-name to attach the control source
|
|
* @cs_a: the control source for the alpha channel
|
|
* @cs_r: the control source for the red channel
|
|
* @cs_g: the control source for the green channel
|
|
* @cs_b: the control source for the blue channel
|
|
*
|
|
* Create a new control-binding that attaches the given #GstControlSource to the
|
|
* #GObject property.
|
|
*
|
|
* Returns: (transfer floating): the new #GstARGBControlBinding
|
|
*/
|
|
GstControlBinding *
|
|
gst_argb_control_binding_new (GstObject * object, const gchar * property_name,
|
|
GstControlSource * cs_a, GstControlSource * cs_r, GstControlSource * cs_g,
|
|
GstControlSource * cs_b)
|
|
{
|
|
return (GstControlBinding *) g_object_new (GST_TYPE_ARGB_CONTROL_BINDING,
|
|
"object", object, "name", property_name,
|
|
"control-source-a", cs_a,
|
|
"control-source-r", cs_r,
|
|
"control-source-g", cs_g, "control-source-b", cs_b, NULL);
|
|
}
|
|
|
|
/* functions */
|