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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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ges: Expose FrameCompositionMeta in public API
Knowing the positioning and size of each frame in the composition can help applications optimize their rendering pipeline. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5652>
This commit is contained in:
Philippe Normand
GStreamer Marge Bot
parent
0afeacce92
commit
d6c425fc58
9 changed files with 282 additions and 107 deletions
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@ -4459,6 +4459,43 @@ else FALSE.</doc>
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</parameter>
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</parameters>
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</callback>
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<record name="FrameCompositionMeta" c:type="GESFrameCompositionMeta" version="1.24">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">Metadata type that holds information about the positioning, size,
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transparency and composition operator of a video frame in the timeline
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composition.</doc>
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<source-position filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h"/>
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<field name="meta" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">the parent #GstMeta.</doc>
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<type name="Gst.Meta" c:type="GstMeta"/>
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</field>
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<field name="alpha" writable="1">
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<type name="gdouble" c:type="gdouble"/>
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</field>
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<field name="posx" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The desired x position.</doc>
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<type name="gint" c:type="gint"/>
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</field>
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<field name="posy" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The desired y position.</doc>
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<type name="gint" c:type="gint"/>
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</field>
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<field name="height" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The desired height of the video.</doc>
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<type name="gint" c:type="gint"/>
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</field>
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<field name="width" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The desired width of the video.</doc>
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<type name="gint" c:type="gint"/>
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</field>
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<field name="zorder" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The desired z order.</doc>
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<type name="guint" c:type="guint"/>
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</field>
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<field name="operator" writable="1">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h">The blending operator for the source.</doc>
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<type name="gint" c:type="gint"/>
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</field>
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</record>
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<class name="Group" c:symbol-prefix="group" c:type="GESGroup" parent="Container" glib:type-name="GESGroup" glib:get-type="ges_group_get_type" glib:type-struct="GroupClass">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-group.c">A #GESGroup controls one or more #GESContainer-s (usually #GESClip-s,
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but it can also control other #GESGroup-s). Its children must share
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@ -16197,6 +16234,20 @@ for later use.</doc>
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</parameter>
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</parameters>
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</function>
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<function name="buffer_add_frame_composition_meta" c:identifier="ges_buffer_add_frame_composition_meta" version="1.24">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.c">Attaches positioning metadata to a #GstBuffer.</doc>
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<source-position filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h"/>
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<return-value transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.c">a pointer to the added #GESFrameCompositionMeta.</doc>
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<type name="FrameCompositionMeta" c:type="GESFrameCompositionMeta*"/>
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</return-value>
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<parameters>
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<parameter name="buffer" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.c">#GstBuffer to which protection metadata should be added.</doc>
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<type name="Gst.Buffer" c:type="GstBuffer*"/>
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</parameter>
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</parameters>
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</function>
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<function name="deinit" c:identifier="ges_deinit">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges.c">Clean up any resources created by GES in ges_init().
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@ -16253,6 +16304,13 @@ formatter asset.</doc>
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</parameter>
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</parameters>
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</function>
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<function name="frame_composition_meta_api_get_type" c:identifier="ges_frame_composition_meta_api_get_type">
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<attribute name="doc.skip" value="true"/>
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<source-position filename="../subprojects/gst-editing-services/ges/ges-frame-composition-meta.h"/>
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<return-value transfer-ownership="none">
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<type name="GType" c:type="GType"/>
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</return-value>
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</function>
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<docsection name="ges.h">
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<doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges.c">GES needs to be initialized after GStreamer itself. This section
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contains the various functions to do so.</doc>
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@ -23,6 +23,7 @@ gi-index
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ges-effect-asset.h
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ges-track-element-asset.h
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ges-source-clip-asset.h
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ges-frame-composition-meta.h
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ges-effect.h
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ges-extractable.h
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ges-group.h
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@ -0,0 +1,135 @@
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/* GStreamer
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* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
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* Copyright (C) 2013 Thibault Saunier <thibault.saunier@collabora.com>
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* Copyright (C) 2020 Thibault Saunier <tsaunier@igalia.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 Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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/**
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* SECTION: gesframecompositionmeta
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* @title: GESFrameCompositionMeta interface
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* @short_description: A Meta providing positioning information for a given
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* video frame
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*
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* Since: 1.24
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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 "ges-frame-composition-meta.h"
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#include "gstframepositioner.h"
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static gboolean ges_frame_composition_meta_init (GstMeta * meta,
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gpointer params, GstBuffer * buffer);
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static gboolean ges_frame_composition_meta_transform (GstBuffer * dest,
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GstMeta * meta, GstBuffer * buffer, GQuark type, gpointer data);
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GType
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ges_frame_composition_meta_api_get_type (void)
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{
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static GType type;
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static const gchar *tags[] = { "video", NULL };
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if (g_once_init_enter (&type)) {
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GType _type = gst_meta_api_type_register ("GstFrameCompositionApi", tags);
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g_once_init_leave (&type, _type);
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}
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return type;
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}
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static const GstMetaInfo *
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ges_frame_composition_meta_get_info (void)
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{
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static const GstMetaInfo *meta_info = NULL;
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if (g_once_init_enter ((GstMetaInfo **) & meta_info)) {
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const GstMetaInfo *meta =
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gst_meta_register (ges_frame_composition_meta_api_get_type (),
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"GESFrameCompositionMeta",
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sizeof (GESFrameCompositionMeta), ges_frame_composition_meta_init, NULL,
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ges_frame_composition_meta_transform);
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g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) meta);
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}
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return meta_info;
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}
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static gboolean
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ges_frame_composition_meta_init (GstMeta * meta, gpointer params,
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GstBuffer * buffer)
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{
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int default_operator_value = 0;
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GESFrameCompositionMeta *smeta;
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smeta = (GESFrameCompositionMeta *) meta;
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gst_compositor_operator_get_type_and_default_value (&default_operator_value);
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smeta->alpha = 0.0;
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smeta->posx = smeta->posy = smeta->height = smeta->width = 0;
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smeta->zorder = 0;
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smeta->operator = default_operator_value;
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return TRUE;
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}
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static gboolean
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ges_frame_composition_meta_transform (GstBuffer * dest, GstMeta * meta,
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GstBuffer * buffer, GQuark type, gpointer data)
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{
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GESFrameCompositionMeta *dmeta, *smeta;
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smeta = (GESFrameCompositionMeta *) meta;
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if (GST_META_TRANSFORM_IS_COPY (type)) {
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/* only copy if the complete data is copied as well */
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dmeta =
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(GESFrameCompositionMeta *) gst_buffer_add_meta (dest,
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ges_frame_composition_meta_get_info (), NULL);
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dmeta->alpha = smeta->alpha;
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dmeta->posx = smeta->posx;
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dmeta->posy = smeta->posy;
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dmeta->width = smeta->width;
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dmeta->height = smeta->height;
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dmeta->zorder = smeta->zorder;
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dmeta->operator = smeta->operator;
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}
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return TRUE;
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}
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/**
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* ges_buffer_add_frame_composition_meta:
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* @buffer: #GstBuffer to which protection metadata should be added.
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*
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* Attaches positioning metadata to a #GstBuffer.
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*
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* Returns: (transfer none): a pointer to the added #GESFrameCompositionMeta.
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*
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* Since: 1.24
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*/
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GESFrameCompositionMeta *
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ges_buffer_add_frame_composition_meta (GstBuffer * buffer)
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{
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GESFrameCompositionMeta *meta;
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meta =
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(GESFrameCompositionMeta *) gst_buffer_add_meta (buffer,
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ges_frame_composition_meta_get_info (), NULL);
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return meta;
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}
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@ -0,0 +1,73 @@
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/* GStreamer
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* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
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* Copyright (C) 2013 Thibault Saunier <thibault.saunier@collabora.com>
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* Copyright (C) 2020 Thibault Saunier <tsaunier@igalia.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 Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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#pragma once
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#include <ges/ges-types.h>
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#include <glib-object.h>
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#include <gst/gst.h>
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G_BEGIN_DECLS
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/**
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* ges_frame_composition_meta_api_get_type: (attributes doc.skip=true)
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*/
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GES_API
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GType ges_frame_composition_meta_api_get_type (void);
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/**
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* GES_TYPE_META_FRAME_COMPOSITION: (attributes doc.skip=true)
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*/
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#define GES_TYPE_META_FRAME_COMPOSITION (ges_frame_composition_meta_api_get_type())
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/**
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* GESFrameCompositionMeta:
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* @meta: the parent #GstMeta.
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* @posx: The desired x position.
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* @posy: The desired y position.
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* @height: The desired height of the video.
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* @width: The desired width of the video.
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* @zorder: The desired z order.
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* @operator:The blending operator for the source.
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*
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* Metadata type that holds information about the positioning, size,
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* transparency and composition operator of a video frame in the timeline
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* composition.
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*
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* Since: 1.24
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*/
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typedef struct _GESFrameCompositionMeta GESFrameCompositionMeta;
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struct _GESFrameCompositionMeta {
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GstMeta meta;
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gdouble alpha;
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gint posx;
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gint posy;
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gint height;
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gint width;
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guint zorder;
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gint operator;
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};
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GES_API
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GESFrameCompositionMeta * ges_buffer_add_frame_composition_meta (GstBuffer * buffer);
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G_END_DECLS
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@ -21,6 +21,7 @@
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#endif
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#include "gstframepositioner.h"
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#include "ges-frame-composition-meta.h"
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#include "ges-types.h"
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#include "ges-internal.h"
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#include "ges-smart-video-mixer.h"
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@ -204,19 +205,19 @@ ges_smart_mixer_get_mixer_pad (GESSmartMixer * self, GstPad ** mixerpad)
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}
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static void
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set_pad_properties_from_positioner_meta (GstPad * mixer_pad, GstSample * sample,
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GESSmartMixerPad * ghost)
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set_pad_properties_from_composition_meta (GstPad * mixer_pad,
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GstSample * sample, GESSmartMixerPad * ghost)
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{
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GstFramePositionerMeta *meta;
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GESFrameCompositionMeta *meta;
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GstBuffer *buf = gst_sample_get_buffer (sample);
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GESSmartMixer *self = GES_SMART_MIXER (GST_OBJECT_PARENT (ghost));
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meta =
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(GstFramePositionerMeta *) gst_buffer_get_meta (buf,
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gst_frame_positioner_meta_api_get_type ());
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(GESFrameCompositionMeta *) gst_buffer_get_meta (buf,
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GES_TYPE_META_FRAME_COMPOSITION);
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if (!meta) {
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GST_WARNING ("The current source should use a framepositioner");
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GST_WARNING ("The current source should use a framecomposition");
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return;
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}
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@ -373,7 +374,7 @@ compositor_sync_properties_with_meta (GstElement * compositor,
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GST_AGGREGATOR_PAD (sinkpad));
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if (sample) {
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set_pad_properties_from_positioner_meta (sinkpad,
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set_pad_properties_from_composition_meta (sinkpad,
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sample, GES_SMART_MIXER_PAD (info->ghostpad));
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gst_sample_unref (sample);
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} else {
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@ -82,6 +82,7 @@
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#include <ges/ges-gerror.h>
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#include <ges/ges-audio-track.h>
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#include <ges/ges-video-track.h>
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#include <ges/ges-frame-composition-meta.h>
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#include <ges/ges-version.h>
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#include <ges/ges-marker-list.h>
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#include <ges/ges-discoverer-manager.h>
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|
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@ -26,6 +26,7 @@
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#include <gst/video/video.h>
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#include "gstframepositioner.h"
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#include "ges-frame-composition-meta.h"
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#include "ges-internal.h"
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GST_DEBUG_CATEGORY_STATIC (_framepositioner);
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@ -43,12 +44,6 @@ static void gst_frame_positioner_get_property (GObject * object,
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static GstFlowReturn gst_frame_positioner_transform_ip (GstBaseTransform *
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trans, GstBuffer * buf);
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static gboolean
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gst_frame_positioner_meta_init (GstMeta * meta, gpointer params,
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GstBuffer * buffer);
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static gboolean gst_frame_positioner_meta_transform (GstBuffer * dest,
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GstMeta * meta, GstBuffer * buffer, GQuark type, gpointer data);
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enum
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{
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PROP_0,
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@ -693,84 +688,10 @@ gst_frame_positioner_get_property (GObject * object, guint property_id,
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}
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}
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GType
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gst_frame_positioner_meta_api_get_type (void)
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{
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static GType type;
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static const gchar *tags[] = { "video", NULL };
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if (g_once_init_enter (&type)) {
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GType _type = gst_meta_api_type_register ("GstFramePositionerApi", tags);
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g_once_init_leave (&type, _type);
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}
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return type;
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}
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static const GstMetaInfo *
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gst_frame_positioner_get_info (void)
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{
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static const GstMetaInfo *meta_info = NULL;
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if (g_once_init_enter ((GstMetaInfo **) & meta_info)) {
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const GstMetaInfo *meta =
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gst_meta_register (gst_frame_positioner_meta_api_get_type (),
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"GstFramePositionerMeta",
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sizeof (GstFramePositionerMeta), gst_frame_positioner_meta_init,
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NULL,
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gst_frame_positioner_meta_transform);
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g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) meta);
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}
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return meta_info;
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}
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static gboolean
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gst_frame_positioner_meta_init (GstMeta * meta, gpointer params,
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GstBuffer * buffer)
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{
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int default_operator_value = 0;
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GstFramePositionerMeta *smeta;
|
||||
|
||||
smeta = (GstFramePositionerMeta *) meta;
|
||||
|
||||
gst_compositor_operator_get_type_and_default_value (&default_operator_value);
|
||||
|
||||
smeta->alpha = 0.0;
|
||||
smeta->posx = smeta->posy = smeta->height = smeta->width = 0;
|
||||
smeta->zorder = 0;
|
||||
smeta->operator = default_operator_value;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_frame_positioner_meta_transform (GstBuffer * dest, GstMeta * meta,
|
||||
GstBuffer * buffer, GQuark type, gpointer data)
|
||||
{
|
||||
GstFramePositionerMeta *dmeta, *smeta;
|
||||
|
||||
smeta = (GstFramePositionerMeta *) meta;
|
||||
|
||||
if (GST_META_TRANSFORM_IS_COPY (type)) {
|
||||
/* only copy if the complete data is copied as well */
|
||||
dmeta =
|
||||
(GstFramePositionerMeta *) gst_buffer_add_meta (dest,
|
||||
gst_frame_positioner_get_info (), NULL);
|
||||
dmeta->alpha = smeta->alpha;
|
||||
dmeta->posx = smeta->posx;
|
||||
dmeta->posy = smeta->posy;
|
||||
dmeta->width = smeta->width;
|
||||
dmeta->height = smeta->height;
|
||||
dmeta->zorder = smeta->zorder;
|
||||
dmeta->operator = smeta->operator;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_frame_positioner_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
|
||||
{
|
||||
GstFramePositionerMeta *meta;
|
||||
GESFrameCompositionMeta *meta;
|
||||
GstFramePositioner *framepositioner = GST_FRAME_POSITIONNER (trans);
|
||||
GstClockTime timestamp = GST_BUFFER_PTS (buf);
|
||||
|
||||
|
|
@ -778,9 +699,7 @@ gst_frame_positioner_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
|
|||
gst_object_sync_values (GST_OBJECT (trans), timestamp);
|
||||
}
|
||||
|
||||
meta =
|
||||
(GstFramePositionerMeta *) gst_buffer_add_meta (buf,
|
||||
gst_frame_positioner_get_info (), NULL);
|
||||
meta = ges_buffer_add_frame_composition_meta (buf);
|
||||
|
||||
GST_OBJECT_LOCK (framepositioner);
|
||||
meta->alpha = framepositioner->alpha;
|
||||
|
|
|
|||
|
|
@ -34,7 +34,6 @@ G_BEGIN_DECLS
|
|||
|
||||
typedef struct _GstFramePositioner GstFramePositioner;
|
||||
typedef struct _GstFramePositionerClass GstFramePositionerClass;
|
||||
typedef struct _GstFramePositionerMeta GstFramePositionerMeta;
|
||||
|
||||
struct _GstFramePositioner
|
||||
{
|
||||
|
|
@ -73,25 +72,11 @@ struct _GstFramePositionerClass
|
|||
GstBaseTransformClass base_framepositioner_class;
|
||||
};
|
||||
|
||||
struct _GstFramePositionerMeta {
|
||||
GstMeta meta;
|
||||
|
||||
gdouble alpha;
|
||||
gint posx;
|
||||
gint posy;
|
||||
gint height;
|
||||
gint width;
|
||||
guint zorder;
|
||||
gint operator;
|
||||
};
|
||||
|
||||
G_GNUC_INTERNAL GType gst_compositor_operator_get_type_and_default_value (int *default_operator_value);
|
||||
G_GNUC_INTERNAL void ges_frame_positioner_set_source_and_filter (GstFramePositioner *pos,
|
||||
GESTrackElement *trksrc,
|
||||
GstElement *capsfilter);
|
||||
G_GNUC_INTERNAL GType gst_frame_positioner_get_type (void);
|
||||
G_GNUC_INTERNAL GType
|
||||
gst_frame_positioner_meta_api_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
ges_sources = files([
|
||||
'ges.c',
|
||||
'ges-enums.c',
|
||||
'ges-frame-composition-meta.c',
|
||||
'ges-meta-container.c',
|
||||
'ges-timeline.c',
|
||||
'ges-layer.c',
|
||||
|
|
@ -73,6 +74,7 @@ ges_headers = files([
|
|||
'ges-types.h',
|
||||
'ges.h',
|
||||
'ges-prelude.h',
|
||||
'ges-frame-composition-meta.h',
|
||||
'ges-enums.h',
|
||||
'ges-gerror.h',
|
||||
'ges-meta-container.h',
|
||||
|
|
|
|||
Loading…
Reference in a new issue