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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8650c7a42a
Attach meta if downstream supports it whatever the negotiated memory type is, or just silently passthrough when meta is not supported Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4945>
92 lines
2.5 KiB
C++
92 lines
2.5 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/gst.h>
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G_BEGIN_DECLS
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typedef struct
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{
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GstMeta meta;
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GstStream *stream;
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GstBuffer *subtitle;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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} GstDWriteSubtitleMeta;
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GType gst_dwrite_subtitle_meta_api_get_type (void);
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#define GST_DWRITE_SUBTITLE_META_API_TYPE (gst_dwrite_subtitle_meta_api_get_type())
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const GstMetaInfo * gst_dwrite_subtitle_meta_get_info (void);
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#define GST_DWRITE_SUBTITLE_META_INFO (gst_dwrite_subtitle_meta_get_info())
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#define gst_buffer_get_dwrite_subtitle_meta(b) \
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((GstDWriteSubtitleMeta *) gst_buffer_get_meta((b), GST_DWRITE_SUBTITLE_META_API_TYPE))
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GstDWriteSubtitleMeta * gst_buffer_add_dwrite_subtitle_meta (GstBuffer * buffer,
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GstStream * stream,
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GstBuffer * subtitle);
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gboolean gst_dwrite_is_windows_10_or_greater (void);
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G_END_DECLS
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#ifdef __cplusplus
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#include <string>
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#include <mutex>
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static inline std::wstring
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gst_dwrite_string_to_wstring (const std::string & str)
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{
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auto tmp = g_utf8_to_utf16 (str.c_str (), -1, nullptr, nullptr, nullptr);
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if (!tmp)
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return std::wstring ();
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std::wstring ret = (wchar_t *) tmp;
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g_free (tmp);
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return ret;
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}
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static inline std::string
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gst_dwrite_wstring_to_string (const std::wstring & str)
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{
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auto tmp = g_utf16_to_utf8 ((const gunichar2 *) str.c_str (),
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-1, nullptr, nullptr, nullptr);
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if (!tmp)
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return std::string ();
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std::string ret = tmp;
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g_free (tmp);
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return ret;
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}
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#define GST_DWRITE_CALL_ONCE_BEGIN \
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static std::once_flag __once_flag; \
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std::call_once (__once_flag, [&]()
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#define GST_DWRITE_CALL_ONCE_END )
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#endif /* __cplusplus */
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