mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 12:56:33 +00:00
fce6edd0f1
dwrite plugin internal use and will be removed once it's added to -base Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4934>
158 lines
4 KiB
C++
158 lines
4 KiB
C++
/* GStreamer
|
|
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/d3d11/gstd3d11.h>
|
|
#include "gstdwrite-utils.h"
|
|
|
|
GType
|
|
gst_dwrite_subtitle_meta_api_get_type (void)
|
|
{
|
|
static GType type = 0;
|
|
static const gchar *tags[] = { NULL, };
|
|
|
|
GST_DWRITE_CALL_ONCE_BEGIN {
|
|
type = gst_meta_api_type_register ("GstDWriteSubtitleMetaAPI", tags);
|
|
} GST_DWRITE_CALL_ONCE_END;
|
|
|
|
return type;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dwrite_subtitle_meta_init (GstMeta * meta, gpointer params,
|
|
GstBuffer * buffer)
|
|
{
|
|
GstDWriteSubtitleMeta *m = (GstDWriteSubtitleMeta *) meta;
|
|
|
|
m->stream = NULL;
|
|
m->subtitle = NULL;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_dwrite_subtitle_meta_free (GstMeta * meta, GstBuffer * buffer)
|
|
{
|
|
GstDWriteSubtitleMeta *m = (GstDWriteSubtitleMeta *) meta;
|
|
|
|
if (m->stream)
|
|
gst_object_unref (m->stream);
|
|
|
|
if (m->subtitle)
|
|
gst_buffer_unref (m->subtitle);
|
|
}
|
|
|
|
static gboolean
|
|
gst_dwrite_subtitle_meta_transform (GstBuffer * dest, GstMeta * meta,
|
|
GstBuffer * buffer, GQuark type, gpointer data)
|
|
{
|
|
GstDWriteSubtitleMeta *dmeta, *smeta;
|
|
|
|
if (GST_META_TRANSFORM_IS_COPY (type)) {
|
|
smeta = (GstDWriteSubtitleMeta *) meta;
|
|
|
|
dmeta = gst_buffer_add_dwrite_subtitle_meta (dest,
|
|
smeta->stream, smeta->subtitle);
|
|
if (!dmeta)
|
|
return FALSE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
const GstMetaInfo *
|
|
gst_dwrite_subtitle_meta_get_info (void)
|
|
{
|
|
static const GstMetaInfo *info = NULL;
|
|
|
|
GST_DWRITE_CALL_ONCE_BEGIN {
|
|
info = gst_meta_register (GST_DWRITE_SUBTITLE_META_API_TYPE,
|
|
"GstDWriteSubtitleMeta",
|
|
sizeof (GstDWriteSubtitleMeta),
|
|
gst_dwrite_subtitle_meta_init,
|
|
gst_dwrite_subtitle_meta_free, gst_dwrite_subtitle_meta_transform);
|
|
}
|
|
GST_DWRITE_CALL_ONCE_END;
|
|
|
|
return info;
|
|
}
|
|
|
|
GstDWriteSubtitleMeta *
|
|
gst_buffer_add_dwrite_subtitle_meta (GstBuffer * buffer, GstStream * stream,
|
|
GstBuffer * subtitle)
|
|
{
|
|
GstDWriteSubtitleMeta *meta;
|
|
|
|
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
|
|
g_return_val_if_fail (GST_IS_STREAM (stream), NULL);
|
|
g_return_val_if_fail (GST_IS_BUFFER (subtitle), NULL);
|
|
|
|
meta = (GstDWriteSubtitleMeta *) gst_buffer_add_meta (buffer,
|
|
GST_DWRITE_SUBTITLE_META_INFO, NULL);
|
|
|
|
if (!meta)
|
|
return NULL;
|
|
|
|
meta->stream = (GstStream *) gst_object_ref (stream);
|
|
meta->subtitle = gst_buffer_ref (subtitle);
|
|
|
|
return meta;
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_is_windows_10_or_greater (void)
|
|
{
|
|
static gboolean ret = FALSE;
|
|
|
|
GST_DWRITE_CALL_ONCE_BEGIN {
|
|
#if (!GST_D3D11_WINAPI_ONLY_APP)
|
|
OSVERSIONINFOEXW osverinfo;
|
|
typedef NTSTATUS (WINAPI fRtlGetVersion) (PRTL_OSVERSIONINFOEXW);
|
|
fRtlGetVersion *RtlGetVersion = NULL;
|
|
HMODULE hmodule = NULL;
|
|
|
|
memset (&osverinfo, 0, sizeof (OSVERSIONINFOEXW));
|
|
osverinfo.dwOSVersionInfoSize = sizeof (OSVERSIONINFOEXW);
|
|
|
|
hmodule = LoadLibraryW (L"ntdll.dll");
|
|
if (!hmodule)
|
|
return;
|
|
|
|
RtlGetVersion =
|
|
(fRtlGetVersion *) GetProcAddress (hmodule, "RtlGetVersion");
|
|
if (RtlGetVersion) {
|
|
RtlGetVersion (&osverinfo);
|
|
if (osverinfo.dwMajorVersion > 10 || osverinfo.dwMajorVersion == 10)
|
|
ret = TRUE;
|
|
}
|
|
|
|
if (hmodule)
|
|
FreeLibrary (hmodule);
|
|
#else
|
|
ret = TRUE;
|
|
#endif
|
|
} GST_DWRITE_CALL_ONCE_END;
|
|
|
|
return ret;
|
|
}
|