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ba6800ce23
Adding DirectWrite text rendering elements * dwriteclockoverlay: Equivalent to clockoverlay * dwritetimeoverlay: Equivalent to timeoverlay * dwritetextoverlay: Similar to textoverlay but subtitle is not supported Newly added elements support system memory and d3d11 memory Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4826>
79 lines
2.3 KiB
C++
79 lines
2.3 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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#define GST_DWRITE_TEXT_META_NAME "GstDWriteTextMeta"
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#define GST_DWRITE_CAPS \
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "," \
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GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, \
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GST_D3D11_ALL_FORMATS) "; " \
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, \
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GST_D3D11_ALL_FORMATS) "; " \
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY "," \
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GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, GST_VIDEO_FORMATS_ALL) ";" \
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GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL)
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G_BEGIN_DECLS
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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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