新增视频流播放

vlcdemo/vlc/vlc3/include/plugins/vlc_spu.h

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+/*****************************************************************************
+ * vlc_spu.h: spu_t definition and functions.
+ *****************************************************************************
+ * Copyright (C) 1999-2010 VLC authors and VideoLAN
+ * Copyright (C) 2010 Laurent Aimar
+ * $Id: 510ee151ec907da9fb6ac88b38cf7ef68a5c4af8 $
+ *
+ * Authors: Gildas Bazin <gbazin@videolan.org>
+ *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef VLC_SPU_H
+#define VLC_SPU_H 1
+
+#include <vlc_subpicture.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup spu Sub-picture channels
+ * \ingroup video_output
+ * @{
+ * \file
+ */
+
+typedef struct spu_private_t spu_private_t;
+
+/**
+ * Subpicture unit descriptor
+ */
+struct spu_t
+{
+    VLC_COMMON_MEMBERS
+
+    spu_private_t *p;
+};
+
+    VLC_API spu_t * spu_Create( vlc_object_t *, vout_thread_t * );
+#define spu_Create(a,b) spu_Create(VLC_OBJECT(a),b)
+VLC_API void spu_Destroy( spu_t * );
+
+/**
+ * This function sends a subpicture to the spu_t core.
+ * 
+ * You cannot use the provided subpicture anymore. The spu_t core
+ * will destroy it at its convenience.
+ */
+VLC_API void spu_PutSubpicture( spu_t *, subpicture_t * );
+
+/**
+ * This function will return an unique subpicture containing the OSD and
+ * subtitles visibles at the requested date.
+ *
+ * \param p_chroma_list is a list of supported chroma for the output (can be NULL)
+ * \param p_fmt_dst is the format of the picture on which the return subpicture will be rendered.
+ * \param p_fmt_src is the format of the original(source) video.
+ *
+ * The returned value if non NULL must be released by subpicture_Delete().
+ */
+VLC_API subpicture_t * spu_Render( spu_t *, const vlc_fourcc_t *p_chroma_list, const video_format_t *p_fmt_dst, const video_format_t *p_fmt_src, mtime_t render_subtitle_date, mtime_t render_osd_date, bool ignore_osd );
+
+/**
+ * It registers a new SPU channel.
+ */
+VLC_API int spu_RegisterChannel( spu_t * );
+
+/**
+ * It clears all subpictures associated to a SPU channel.
+ */
+VLC_API void spu_ClearChannel( spu_t *, int );
+
+/**
+ * It changes the sub sources list
+ */
+VLC_API void spu_ChangeSources( spu_t *, const char * );
+
+/**
+ * It changes the sub filters list
+ */
+VLC_API void spu_ChangeFilters( spu_t *, const char * );
+
+/** @}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* VLC_SPU_H */
+