llmediaimplgstreamer_syms.h
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上传日期:2021-03-01
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- /**
- * @file llmediaimplgstreamer_syms.h
- * @brief dynamic GStreamer symbol-grabbing code
- *
- * @cond
- * $LicenseInfo:firstyear=2007&license=viewergpl$
- *
- * Copyright (c) 2007-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- * @endcond
- */
- #include "linden_common.h"
- #if LL_GSTREAMER010_ENABLED
- extern "C" {
- #include <gst/gst.h>
- }
- bool grab_gst_syms(std::string gst_dso_name,
- std::string gst_dso_name_vid);
- void ungrab_gst_syms();
- #define LL_GST_SYM(REQ, GSTSYM, RTN, ...) extern RTN (*ll##GSTSYM)(__VA_ARGS__)
- #include "llmediaimplgstreamer_syms_raw.inc"
- #include "llmediaimplgstreamer_syms_rawv.inc"
- #undef LL_GST_SYM
- // regrettable hacks to give us better runtime compatibility with older systems
- #define llg_return_if_fail(COND) do{if (!(COND)) return;}while(0)
- #define llg_return_val_if_fail(COND,V) do{if (!(COND)) return V;}while(0)
- // regrettable hacks because GStreamer was not designed for runtime loading
- #undef GST_TYPE_MESSAGE
- #define GST_TYPE_MESSAGE (llgst_message_get_type())
- #undef GST_TYPE_OBJECT
- #define GST_TYPE_OBJECT (llgst_object_get_type())
- #undef GST_TYPE_PIPELINE
- #define GST_TYPE_PIPELINE (llgst_pipeline_get_type())
- #undef GST_TYPE_ELEMENT
- #define GST_TYPE_ELEMENT (llgst_element_get_type())
- #undef GST_TYPE_VIDEO_SINK
- #define GST_TYPE_VIDEO_SINK (llgst_video_sink_get_type())
- // more regrettable hacks to stub-out these .h-exposed GStreamer internals
- void ll_gst_debug_register_funcptr(GstDebugFuncPtr func, gchar* ptrname);
- #undef _gst_debug_register_funcptr
- #define _gst_debug_register_funcptr ll_gst_debug_register_funcptr
- GstDebugCategory* ll_gst_debug_category_new(gchar *name, guint color, gchar *description);
- #undef _gst_debug_category_new
- #define _gst_debug_category_new ll_gst_debug_category_new
- #undef __gst_debug_enabled
- #define __gst_debug_enabled (0)
- // more hacks
- #define LLGST_MESSAGE_TYPE_NAME(M) (llgst_message_type_get_name(GST_MESSAGE_TYPE(M)))
- #endif // LL_GSTREAMER010_ENABLED