mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
The same is done in the set_property function. This was noticed when attempting to dump a pipeline containing glsinkbin sink=gtk4paintablesink to dot format. Critical warnings were raised due to the missing force-aspect-ratio property on that sink. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5311>
647 lines
21 KiB
C
647 lines
21 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/video/videooverlay.h>
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#include <gst/video/navigation.h>
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#include <gst/controller/gstproxycontrolbinding.h>
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#include "gstglelements.h"
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#include "gstglsinkbin.h"
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GST_DEBUG_CATEGORY (gst_debug_gl_sink_bin);
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#define GST_CAT_DEFAULT gst_debug_gl_sink_bin
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static void gst_gl_sink_bin_finalize (GObject * object);
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static void gst_gl_sink_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * param_spec);
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static void gst_gl_sink_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * param_spec);
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static GstStateChangeReturn gst_gl_sink_bin_change_state (GstElement * element,
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GstStateChange transition);
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static void gst_gl_sink_bin_video_overlay_init (gpointer g_iface,
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gpointer g_iface_data);
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static void gst_gl_sink_bin_navigation_interface_init (gpointer g_iface,
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gpointer g_iface_data);
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static void gst_gl_sink_bin_color_balance_init (gpointer g_iface,
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gpointer g_iface_data);
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#define DEFAULT_SYNC TRUE
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#define DEFAULT_MAX_LATENESS -1
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#define DEFAULT_QOS FALSE
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#define DEFAULT_ASYNC TRUE
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#define DEFAULT_TS_OFFSET 0
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#define DEFAULT_BLOCKSIZE 4096
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#define DEFAULT_RENDER_DELAY 0
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#define DEFAULT_ENABLE_LAST_SAMPLE TRUE
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#define DEFAULT_THROTTLE_TIME 0
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#define DEFAULT_MAX_BITRATE 0
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/* GstGLColorBalance properties */
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#define DEFAULT_PROP_CONTRAST 1.0
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#define DEFAULT_PROP_BRIGHTNESS 0.0
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#define DEFAULT_PROP_HUE 0.0
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#define DEFAULT_PROP_SATURATION 1.0
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enum
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{
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PROP_0,
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PROP_FORCE_ASPECT_RATIO,
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PROP_SINK,
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PROP_SYNC,
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PROP_MAX_LATENESS,
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PROP_QOS,
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PROP_ASYNC,
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PROP_TS_OFFSET,
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PROP_ENABLE_LAST_SAMPLE,
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PROP_LAST_SAMPLE,
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PROP_BLOCKSIZE,
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PROP_RENDER_DELAY,
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PROP_THROTTLE_TIME,
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PROP_MAX_BITRATE,
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PROP_CONTRAST,
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PROP_BRIGHTNESS,
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PROP_HUE,
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PROP_SATURATION,
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};
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enum
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{
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SIGNAL_0,
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SIGNAL_CREATE_ELEMENT,
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SIGNAL_LAST,
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};
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static guint gst_gl_sink_bin_signals[SIGNAL_LAST] = { 0, };
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#define gst_gl_sink_bin_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstGLSinkBin, gst_gl_sink_bin,
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GST_TYPE_BIN, G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
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gst_gl_sink_bin_video_overlay_init);
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G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
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gst_gl_sink_bin_navigation_interface_init);
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G_IMPLEMENT_INTERFACE (GST_TYPE_COLOR_BALANCE,
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gst_gl_sink_bin_color_balance_init)
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GST_DEBUG_CATEGORY_INIT (gst_debug_gl_sink_bin, "glimagesink", 0,
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"OpenGL Video Sink Bin"));
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (glsinkbin, "glsinkbin",
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GST_RANK_NONE, GST_TYPE_GL_SINK_BIN, gl_element_init (plugin));
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static void
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gst_gl_sink_bin_class_init (GstGLSinkBinClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstCaps *upload_caps;
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gobject_class = (GObjectClass *) klass;
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element_class = GST_ELEMENT_CLASS (klass);
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element_class->change_state = gst_gl_sink_bin_change_state;
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gobject_class->set_property = gst_gl_sink_bin_set_property;
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gobject_class->get_property = gst_gl_sink_bin_get_property;
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gobject_class->finalize = gst_gl_sink_bin_finalize;
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g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
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g_param_spec_boolean ("force-aspect-ratio",
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"Force aspect ratio",
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"When enabled, scaling will respect original aspect ratio", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SINK,
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g_param_spec_object ("sink",
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"GL sink element",
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"The GL sink chain to use",
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GST_TYPE_ELEMENT,
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GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE |
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G_PARAM_STATIC_STRINGS));
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/* base sink */
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g_object_class_install_property (gobject_class, PROP_SYNC,
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g_param_spec_boolean ("sync", "Sync", "Sync on the clock", DEFAULT_SYNC,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MAX_LATENESS,
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g_param_spec_int64 ("max-lateness", "Max Lateness",
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"Maximum number of nanoseconds that a buffer can be late before it "
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"is dropped (-1 unlimited)", -1, G_MAXINT64, DEFAULT_MAX_LATENESS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_QOS,
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g_param_spec_boolean ("qos", "Qos",
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"Generate Quality-of-Service events upstream", DEFAULT_QOS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_ASYNC,
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g_param_spec_boolean ("async", "Async",
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"Go asynchronously to PAUSED", DEFAULT_ASYNC,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TS_OFFSET,
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g_param_spec_int64 ("ts-offset", "TS Offset",
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"Timestamp offset in nanoseconds", G_MININT64, G_MAXINT64,
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DEFAULT_TS_OFFSET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_ENABLE_LAST_SAMPLE,
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g_param_spec_boolean ("enable-last-sample", "Enable Last Buffer",
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"Enable the last-sample property", DEFAULT_ENABLE_LAST_SAMPLE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_LAST_SAMPLE,
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g_param_spec_boxed ("last-sample", "Last Sample",
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"The last sample received in the sink", GST_TYPE_SAMPLE,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BLOCKSIZE,
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g_param_spec_uint ("blocksize", "Block size",
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"Size in bytes to pull per buffer (0 = default)", 0, G_MAXUINT,
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DEFAULT_BLOCKSIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_RENDER_DELAY,
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g_param_spec_uint64 ("render-delay", "Render Delay",
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"Additional render delay of the sink in nanoseconds", 0, G_MAXUINT64,
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DEFAULT_RENDER_DELAY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_THROTTLE_TIME,
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g_param_spec_uint64 ("throttle-time", "Throttle time",
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"The time to keep between rendered buffers (0 = disabled)", 0,
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G_MAXUINT64, DEFAULT_THROTTLE_TIME,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MAX_BITRATE,
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g_param_spec_uint64 ("max-bitrate", "Max Bitrate",
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"The maximum bits per second to render (0 = disabled)", 0,
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G_MAXUINT64, DEFAULT_MAX_BITRATE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/* colorbalance */
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g_object_class_install_property (gobject_class, PROP_CONTRAST,
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g_param_spec_double ("contrast", "Contrast", "contrast",
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0.0, 2.0, DEFAULT_PROP_CONTRAST,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BRIGHTNESS,
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g_param_spec_double ("brightness", "Brightness", "brightness", -1.0, 1.0,
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DEFAULT_PROP_BRIGHTNESS,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_HUE,
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g_param_spec_double ("hue", "Hue", "hue", -1.0, 1.0, DEFAULT_PROP_HUE,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SATURATION,
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g_param_spec_double ("saturation", "Saturation", "saturation", 0.0, 2.0,
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DEFAULT_PROP_SATURATION,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstGLSinkBin::create-element:
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* @object: the #glsinkbin
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*
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* Will be emitted when we need the processing element/s that this bin will use
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*
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* Returns: a new #GstElement
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*/
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gst_gl_sink_bin_signals[SIGNAL_CREATE_ELEMENT] =
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g_signal_new ("create-element", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, GST_TYPE_ELEMENT, 0);
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gst_element_class_set_metadata (element_class,
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"GL Sink Bin", "Sink/Video",
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"Infrastructure to process GL textures",
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"Matthew Waters <matthew@centricular.com>");
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upload_caps = gst_gl_upload_get_input_template_caps ();
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, upload_caps));
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gst_caps_unref (upload_caps);
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}
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static void
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gst_gl_sink_bin_init (GstGLSinkBin * self)
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{
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gboolean res = TRUE;
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GstPad *pad;
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self->upload = gst_element_factory_make ("glupload", NULL);
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self->convert = gst_element_factory_make ("glcolorconvert", NULL);
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self->balance = gst_element_factory_make ("glcolorbalance", NULL);
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res &= gst_bin_add (GST_BIN (self), self->upload);
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res &= gst_bin_add (GST_BIN (self), self->convert);
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res &= gst_bin_add (GST_BIN (self), self->balance);
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res &= gst_element_link_pads (self->upload, "src", self->convert, "sink");
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res &= gst_element_link_pads (self->convert, "src", self->balance, "sink");
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pad = gst_element_get_static_pad (self->upload, "sink");
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if (!pad) {
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res = FALSE;
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} else {
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GST_DEBUG_OBJECT (self, "setting target sink pad %" GST_PTR_FORMAT, pad);
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self->sinkpad = gst_ghost_pad_new ("sink", pad);
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gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
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gst_object_unref (pad);
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}
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#define ADD_BINDING(obj,ref,prop) \
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gst_object_add_control_binding (GST_OBJECT (obj), \
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gst_proxy_control_binding_new (GST_OBJECT (obj), prop, \
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GST_OBJECT (ref), prop));
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ADD_BINDING (self->balance, self, "contrast");
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ADD_BINDING (self->balance, self, "brightness");
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ADD_BINDING (self->balance, self, "hue");
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ADD_BINDING (self->balance, self, "saturation");
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#undef ADD_BINDING
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if (!res) {
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GST_WARNING_OBJECT (self, "Failed to add/connect the necessary machinery");
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}
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gst_type_mark_as_plugin_api (GST_TYPE_GL_SINK_BIN, 0);
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}
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static void
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gst_gl_sink_bin_finalize (GObject * object)
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{
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GstGLSinkBin *self = GST_GL_SINK_BIN (object);
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if (self->sink)
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gst_object_unref (self->sink);
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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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_connect_sink_element (GstGLSinkBin * self)
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{
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gst_object_set_name (GST_OBJECT (self->sink), "sink");
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if (gst_bin_add (GST_BIN (self), self->sink) &&
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gst_element_link_pads (self->balance, "src", self->sink, "sink"))
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return TRUE;
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GST_ERROR_OBJECT (self, "Failed to link sink element into the pipeline");
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return FALSE;
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}
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/*
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* @sink: (transfer full):
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*/
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static gboolean
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gst_gl_sink_bin_set_sink (GstGLSinkBin * self, GstElement * sink)
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{
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g_return_val_if_fail (GST_IS_ELEMENT (sink), FALSE);
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if (self->sink) {
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gst_element_set_locked_state (self->sink, TRUE);
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gst_bin_remove (GST_BIN (self), self->sink);
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gst_element_set_state (self->sink, GST_STATE_NULL);
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gst_object_unref (self->sink);
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self->sink = NULL;
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}
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self->sink = sink;
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gst_object_ref_sink (sink);
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if (sink && !_connect_sink_element (self)) {
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gst_object_unref (self->sink);
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self->sink = NULL;
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return FALSE;
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}
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return TRUE;
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}
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void
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gst_gl_sink_bin_finish_init_with_element (GstGLSinkBin * self,
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GstElement * element)
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{
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gst_gl_sink_bin_set_sink (self, element);
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}
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void
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gst_gl_sink_bin_finish_init (GstGLSinkBin * self)
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{
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GstGLSinkBinClass *klass = GST_GL_SINK_BIN_GET_CLASS (self);
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GstElement *element = NULL;
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if (klass->create_element)
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element = klass->create_element ();
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if (element)
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gst_gl_sink_bin_finish_init_with_element (self, element);
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}
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static void
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gst_gl_sink_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGLSinkBin *self = GST_GL_SINK_BIN (object);
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GParamSpec *sink_pspec;
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switch (prop_id) {
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case PROP_SINK:
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gst_gl_sink_bin_set_sink (self, g_value_get_object (value));
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break;
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case PROP_CONTRAST:
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case PROP_BRIGHTNESS:
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case PROP_HUE:
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case PROP_SATURATION:
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if (self->balance)
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g_object_set_property (G_OBJECT (self->balance), pspec->name, value);
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break;
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default:
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if (self->sink) {
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sink_pspec =
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g_object_class_find_property (G_OBJECT_GET_CLASS (self->sink),
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pspec->name);
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if (sink_pspec
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&& G_PARAM_SPEC_TYPE (sink_pspec) == G_PARAM_SPEC_TYPE (pspec)) {
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g_object_set_property (G_OBJECT (self->sink), pspec->name, value);
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} else {
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GST_INFO ("Failed to set unmatched property %s", pspec->name);
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}
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}
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break;
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}
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}
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static void
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gst_gl_sink_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstGLSinkBin *self = GST_GL_SINK_BIN (object);
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GParamSpec *sink_pspec;
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switch (prop_id) {
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case PROP_SINK:
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g_value_set_object (value, self->sink);
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break;
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case PROP_CONTRAST:
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case PROP_BRIGHTNESS:
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case PROP_HUE:
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case PROP_SATURATION:
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if (self->balance)
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g_object_get_property (G_OBJECT (self->balance), pspec->name, value);
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break;
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default:
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if (self->sink) {
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sink_pspec =
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g_object_class_find_property (G_OBJECT_GET_CLASS (self->sink),
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pspec->name);
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if (sink_pspec
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&& G_PARAM_SPEC_TYPE (sink_pspec) == G_PARAM_SPEC_TYPE (pspec)) {
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g_object_get_property (G_OBJECT (self->sink), pspec->name, value);
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} else {
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GST_INFO ("Failed to get unmatched property %s", pspec->name);
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}
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}
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break;
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}
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}
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static GstStateChangeReturn
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gst_gl_sink_bin_change_state (GstElement * element, GstStateChange transition)
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{
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GstGLSinkBin *self = GST_GL_SINK_BIN (element);
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GstGLSinkBinClass *klass = GST_GL_SINK_BIN_GET_CLASS (self);
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GST_DEBUG ("changing state: %s => %s",
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gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
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gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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if (!self->sink) {
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if (klass->create_element)
|
|
self->sink = klass->create_element ();
|
|
|
|
if (!self->sink) {
|
|
g_signal_emit (element,
|
|
gst_gl_sink_bin_signals[SIGNAL_CREATE_ELEMENT], 0, &self->sink);
|
|
if (self->sink && g_object_is_floating (self->sink))
|
|
gst_object_ref_sink (self->sink);
|
|
}
|
|
|
|
if (!self->sink) {
|
|
GST_ERROR_OBJECT (element, "Failed to retrieve element");
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
if (!_connect_sink_element (self))
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_navigation_send_event (GstNavigation * navigation,
|
|
GstEvent * event)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (navigation);
|
|
GstElement *nav =
|
|
gst_bin_get_by_interface (GST_BIN (self), GST_TYPE_NAVIGATION);
|
|
|
|
if (nav) {
|
|
gst_navigation_send_event_simple (GST_NAVIGATION (nav), event);
|
|
gst_object_unref (nav);
|
|
} else {
|
|
gst_element_send_event (GST_ELEMENT (self), event);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_navigation_interface_init (gpointer g_iface,
|
|
gpointer g_iface_data)
|
|
{
|
|
GstNavigationInterface *iface = (GstNavigationInterface *) g_iface;
|
|
iface->send_event_simple = gst_gl_sink_bin_navigation_send_event;
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_overlay_expose (GstVideoOverlay * overlay)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (overlay);
|
|
GstVideoOverlay *overlay_element = NULL;
|
|
|
|
overlay_element =
|
|
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_VIDEO_OVERLAY));
|
|
|
|
if (overlay_element) {
|
|
gst_video_overlay_expose (overlay_element);
|
|
gst_object_unref (overlay_element);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_overlay_handle_events (GstVideoOverlay * overlay,
|
|
gboolean handle_events)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (overlay);
|
|
GstVideoOverlay *overlay_element = NULL;
|
|
|
|
overlay_element =
|
|
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_VIDEO_OVERLAY));
|
|
|
|
if (overlay_element) {
|
|
gst_video_overlay_handle_events (overlay_element, handle_events);
|
|
gst_object_unref (overlay_element);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x,
|
|
gint y, gint width, gint height)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (overlay);
|
|
GstVideoOverlay *overlay_element = NULL;
|
|
|
|
overlay_element =
|
|
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_VIDEO_OVERLAY));
|
|
|
|
if (overlay_element) {
|
|
gst_video_overlay_set_render_rectangle (overlay_element, x, y, width,
|
|
height);
|
|
gst_object_unref (overlay_element);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_overlay_set_window_handle (GstVideoOverlay * overlay,
|
|
guintptr handle)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (overlay);
|
|
GstVideoOverlay *overlay_element = NULL;
|
|
|
|
overlay_element =
|
|
GST_VIDEO_OVERLAY (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_VIDEO_OVERLAY));
|
|
|
|
if (overlay_element) {
|
|
gst_video_overlay_set_window_handle (overlay_element, handle);
|
|
gst_object_unref (overlay_element);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_video_overlay_init (gpointer g_iface, gpointer g_iface_data)
|
|
{
|
|
GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface;
|
|
iface->expose = gst_gl_sink_bin_overlay_expose;
|
|
iface->handle_events = gst_gl_sink_bin_overlay_handle_events;
|
|
iface->set_render_rectangle = gst_gl_sink_bin_overlay_set_render_rectangle;
|
|
iface->set_window_handle = gst_gl_sink_bin_overlay_set_window_handle;
|
|
}
|
|
|
|
static const GList *
|
|
gst_gl_sink_bin_color_balance_list_channels (GstColorBalance * balance)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (balance);
|
|
GstColorBalance *balance_element = NULL;
|
|
const GList *list = NULL;
|
|
|
|
balance_element =
|
|
GST_COLOR_BALANCE (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_COLOR_BALANCE));
|
|
|
|
if (balance_element) {
|
|
list = gst_color_balance_list_channels (balance_element);
|
|
gst_object_unref (balance_element);
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_color_balance_set_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel, gint value)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (balance);
|
|
GstColorBalance *balance_element = NULL;
|
|
|
|
balance_element =
|
|
GST_COLOR_BALANCE (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_COLOR_BALANCE));
|
|
|
|
if (balance_element) {
|
|
gst_color_balance_set_value (balance_element, channel, value);
|
|
gst_object_unref (balance_element);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gst_gl_sink_bin_color_balance_get_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (balance);
|
|
GstColorBalance *balance_element = NULL;
|
|
gint val = 0;
|
|
|
|
balance_element =
|
|
GST_COLOR_BALANCE (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_COLOR_BALANCE));
|
|
|
|
if (balance_element) {
|
|
val = gst_color_balance_get_value (balance_element, channel);
|
|
gst_object_unref (balance_element);
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static GstColorBalanceType
|
|
gst_gl_sink_bin_color_balance_get_balance_type (GstColorBalance * balance)
|
|
{
|
|
GstGLSinkBin *self = GST_GL_SINK_BIN (balance);
|
|
GstColorBalance *balance_element = NULL;
|
|
GstColorBalanceType type = 0;
|
|
|
|
balance_element =
|
|
GST_COLOR_BALANCE (gst_bin_get_by_interface (GST_BIN (self),
|
|
GST_TYPE_COLOR_BALANCE));
|
|
|
|
if (balance_element) {
|
|
type = gst_color_balance_get_balance_type (balance_element);
|
|
gst_object_unref (balance_element);
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
static void
|
|
gst_gl_sink_bin_color_balance_init (gpointer g_iface, gpointer g_iface_data)
|
|
{
|
|
GstColorBalanceInterface *iface = (GstColorBalanceInterface *) g_iface;
|
|
|
|
iface->list_channels = gst_gl_sink_bin_color_balance_list_channels;
|
|
iface->set_value = gst_gl_sink_bin_color_balance_set_value;
|
|
iface->get_value = gst_gl_sink_bin_color_balance_get_value;
|
|
iface->get_balance_type = gst_gl_sink_bin_color_balance_get_balance_type;
|
|
}
|