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This new metadata API allows elements to attach LCEVC enhancement data to video buffers. Usually, the video parser elements are charged to parse the LCEVC enhancement data from SEI Nal units (Supplemental enhancement Information). However, other elements such as demuxers can also use this API if the LCEVC enhancement data of the video is stored in a separate stream in the container. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7330>
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* GStreamer LCEVC meta
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* Copyright (C) <2024> V-Nova International Limited
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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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#ifndef __GST_LCEVC_META_H__
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#define __GST_LCEVC_META_H__
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#include <gst/gst.h>
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#include <gst/codecparsers/codecparsers-prelude.h>
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G_BEGIN_DECLS
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#define GST_LCEVC_META_API_TYPE (gst_lcevc_meta_api_get_type())
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#define GST_LCEVC_META_INFO (gst_lcevc_meta_get_info())
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typedef struct _GstLcevcMeta GstLcevcMeta;
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#define GST_CAPS_FEATURE_META_GST_LCEVC_META "meta:GstLcevcMeta"
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/**
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* GstLcevcMeta:
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* @meta: parent #GstMeta
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* @id: the id of the LCEVC meta
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* @enhancement_data: the parsed LCEVC enhancement data
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*
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* LCEVC data for LCEVC codecs
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*
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* Since: 1.26
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*/
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struct _GstLcevcMeta {
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GstMeta meta;
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gint id;
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GstBuffer *enhancement_data;
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};
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GST_CODEC_PARSERS_API
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GType gst_lcevc_meta_api_get_type (void);
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GST_CODEC_PARSERS_API
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const GstMetaInfo * gst_lcevc_meta_get_info (void);
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GST_CODEC_PARSERS_API
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GstLcevcMeta * gst_buffer_get_lcevc_meta (GstBuffer *buffer);
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GST_CODEC_PARSERS_API
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GstLcevcMeta * gst_buffer_get_lcevc_meta_id (GstBuffer *buffer, gint id);
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GST_CODEC_PARSERS_API
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GstLcevcMeta * gst_buffer_add_lcevc_meta (GstBuffer *buffer,
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GstBuffer *enhancement_data);
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G_END_DECLS
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#endif /* __GST_VIDEO_META_H__ */
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