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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1c4de219e4
Adding new subtitle overlay element. It's a bin which is wrapping two internal elements dwritesubtitlemux and dwritetextoverlay. * dwritesubtitlemux: A new internal element to aggregate subtitle buffers and to attach the aggregated subtitle buffers on video buffer as meta. * dwritetextoverlay: Extracts/renders the subtitle meta and discard the meta after rendering. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4934>
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/* GStreamer
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* Copyright (C) 2023 Seungha Yang <seungha@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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#pragma once
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#include <gst/d3d11/gstd3d11.h>
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#include <gst/video/video.h>
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#include <gst/base/base.h>
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#include <string>
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#include "gstdwrite-utils.h"
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#include "gstdwrite-enums.h"
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#include <vector>
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G_BEGIN_DECLS
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#define GST_TYPE_DWRITE_BASE_OVERLAY (gst_dwrite_base_overlay_get_type())
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#define GST_DWRITE_BASE_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DWRITE_BASE_OVERLAY,GstDWriteBaseOverlay))
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#define GST_DWRITE_BASE_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_DWRITE_BASE_OVERLAY,GstDWriteBaseOverlayClass))
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#define GST_DWRITE_BASE_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_DWRITE_BASE_OVERLAY,GstDWriteBaseOverlayClass))
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#define GST_IS_DWRITE_BASE_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DWRITE_BASE_OVERLAY))
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#define GST_IS_DWRITE_BASE_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_DWRITE_BASE_OVERLAY))
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typedef struct _GstDWriteBaseOverlay GstDWriteBaseOverlay;
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typedef struct _GstDWriteBaseOverlayClass GstDWriteBaseOverlayClass;
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typedef struct _GstDWriteBaseOverlayPrivate GstDWriteBaseOverlayPrivate;
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typedef std::wstring WString;
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struct _GstDWriteBaseOverlay
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{
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GstBaseTransform parent;
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GstVideoInfo info;
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GstDWriteBaseOverlayPrivate *priv;
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};
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struct _GstDWriteBaseOverlayClass
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{
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GstBaseTransformClass parent_class;
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gboolean (*sink_event) (GstDWriteBaseOverlay * overlay,
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GstEvent * event);
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WString (*get_text) (GstDWriteBaseOverlay * overlay,
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const std::wstring & default_text,
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GstBuffer * buffer);
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void (*after_transform) (GstDWriteBaseOverlay * overlay,
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GstBuffer * buffer);
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};
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GType gst_dwrite_base_overlay_get_type (void);
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void gst_dwrite_base_overlay_build_param_specs (std::vector<GParamSpec *> & pspec);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstDWriteBaseOverlay, gst_object_unref)
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G_END_DECLS
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