/indra/media_plugins/gstreamer010/llmediaimplgstreamer_syms.h

https://bitbucket.org/lindenlab/viewer-beta/ · C++ Header · 74 lines · 34 code · 9 blank · 31 comment · 0 complexity · f842fb5b00950b2ea5d43b5bee8c4d93 MD5 · raw file 

    

  1. /** 
    2. 

  2.  * @file llmediaimplgstreamer_syms.h
    3. 

  3.  * @brief dynamic GStreamer symbol-grabbing code
    4. 

  4.  *
    5. 

  5.  * @cond
    6. 

  6.  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
    7. 

  7.  * Second Life Viewer Source Code
    8. 

  8.  * Copyright (C) 2010, Linden Research, Inc.
    9. 

  9.  * 
    10. 

  10.  * This library is free software; you can redistribute it and/or
    11. 

  11.  * modify it under the terms of the GNU Lesser General Public
    12. 

  12.  * License as published by the Free Software Foundation;
    13. 

  13.  * version 2.1 of the License only.
    14. 

  14.  * 
    15. 

  15.  * This library is distributed in the hope that it will be useful,
    16. 

  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    17. 

  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    18. 

  18.  * Lesser General Public License for more details.
    19. 

  19.  * 
    20. 

  20.  * You should have received a copy of the GNU Lesser General Public
    21. 

  21.  * License along with this library; if not, write to the Free Software
    22. 

  22.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
    23. 

  23.  * 
    24. 

  24.  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
    25. 

  25.  * $/LicenseInfo$
    26. 

  26.  * @endcond
    27. 

  27.  */
    28. 

  28. 

  29. #include "linden_common.h"
    30. 

  30. 

  31. #if LL_GSTREAMER010_ENABLED
    32. 

  32. 

  33. extern "C" {
    34. 

  34. #include <gst/gst.h>
    35. 

  35. }
    36. 

  36. 

  37. bool grab_gst_syms(std::string gst_dso_name,
    38. 

  38. 		   std::string gst_dso_name_vid);
    39. 

  39. void ungrab_gst_syms();
    40. 

  40. 

  41. #define LL_GST_SYM(REQ, GSTSYM, RTN, ...) extern RTN (*ll##GSTSYM)(__VA_ARGS__)
    42. 

  42. #include "llmediaimplgstreamer_syms_raw.inc"
    43. 

  43. #include "llmediaimplgstreamer_syms_rawv.inc"
    44. 

  44. #undef LL_GST_SYM
    45. 

  45. 

  46. // regrettable hacks to give us better runtime compatibility with older systems
    47. 

  47. #define llg_return_if_fail(COND) do{if (!(COND)) return;}while(0)
    48. 

  48. #define llg_return_val_if_fail(COND,V) do{if (!(COND)) return V;}while(0)
    49. 

  49. 

  50. // regrettable hacks because GStreamer was not designed for runtime loading
    51. 

  51. #undef GST_TYPE_MESSAGE
    52. 

  52. #define GST_TYPE_MESSAGE (llgst_message_get_type())
    53. 

  53. #undef GST_TYPE_OBJECT
    54. 

  54. #define GST_TYPE_OBJECT (llgst_object_get_type())
    55. 

  55. #undef GST_TYPE_PIPELINE
    56. 

  56. #define GST_TYPE_PIPELINE (llgst_pipeline_get_type())
    57. 

  57. #undef GST_TYPE_ELEMENT
    58. 

  58. #define GST_TYPE_ELEMENT (llgst_element_get_type())
    59. 

  59. #undef GST_TYPE_VIDEO_SINK
    60. 

  60. #define GST_TYPE_VIDEO_SINK (llgst_video_sink_get_type())
    61. 

  61. // more regrettable hacks to stub-out these .h-exposed GStreamer internals
    62. 

  62. void ll_gst_debug_register_funcptr(GstDebugFuncPtr func, gchar* ptrname);
    63. 

  63. #undef _gst_debug_register_funcptr
    64. 

  64. #define _gst_debug_register_funcptr ll_gst_debug_register_funcptr
    65. 

  65. GstDebugCategory* ll_gst_debug_category_new(gchar *name, guint color, gchar *description);
    66. 

  66. #undef _gst_debug_category_new
    67. 

  67. #define _gst_debug_category_new ll_gst_debug_category_new
    68. 

  68. #undef __gst_debug_enabled
    69. 

  69. #define __gst_debug_enabled (0)
    70. 

  70. 

  71. // more hacks
    72. 

  72. #define LLGST_MESSAGE_TYPE_NAME(M) (llgst_message_type_get_name(GST_MESSAGE_TYPE(M)))
    73. 

  73. 

  74. #endif // LL_GSTREAMER010_ENABLED
    75.