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1 /* GStreamer |
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2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
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3 * 2000 Wim Taymans <wtay@chello.be> |
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4 * 2002 Thomas Vander Stichele <thomas@apestaart.org> |
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5 * |
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6 * gstutils.h: Header for various utility functions |
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7 * |
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8 * This library is free software; you can redistribute it and/or |
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9 * modify it under the terms of the GNU Library General Public |
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10 * License as published by the Free Software Foundation; either |
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11 * version 2 of the License, or (at your option) any later version. |
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12 * |
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13 * This library is distributed in the hope that it will be useful, |
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Library General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Library General Public |
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19 * License along with this library; if not, write to the |
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20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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21 * Boston, MA 02111-1307, USA. |
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22 */ |
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23 |
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24 |
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25 #ifndef __GST_UTILS_H__ |
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26 #define __GST_UTILS_H__ |
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27 |
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28 #include <glib.h> |
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29 #include <gst/gstbin.h> |
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30 |
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31 G_BEGIN_DECLS |
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32 |
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33 void gst_util_set_value_from_string (GValue *value, const gchar *value_str); |
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34 #ifdef __SYMBIAN32__ |
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35 IMPORT_C |
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36 #endif |
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37 |
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38 void gst_util_set_object_arg (GObject *object, const gchar *name, const gchar *value); |
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39 #ifdef __SYMBIAN32__ |
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40 IMPORT_C |
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41 #endif |
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42 |
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43 void gst_util_dump_mem (const guchar *mem, guint size); |
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44 #ifdef __SYMBIAN32__ |
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45 IMPORT_C |
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46 #endif |
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47 |
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48 |
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49 guint64 gst_util_gdouble_to_guint64 (gdouble value); |
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50 #ifdef __SYMBIAN32__ |
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51 IMPORT_C |
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52 #endif |
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53 |
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54 gdouble gst_util_guint64_to_gdouble (guint64 value); |
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55 |
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56 /** |
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57 * gst_guint64_to_gdouble: |
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58 * @value: the #guint64 value to convert |
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59 * |
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60 * Convert @value to a gdouble. |
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61 * |
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62 * Returns: @value converted to a #gdouble. |
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63 */ |
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64 |
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65 /** |
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66 * gst_gdouble_to_guint64: |
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67 * @value: the #gdouble value to convert |
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68 * |
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69 * Convert @value to a guint64. |
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70 * |
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71 * Returns: @value converted to a #guint64. |
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72 */ |
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73 #ifdef WIN32 |
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74 #define gst_gdouble_to_guint64(value) gst_util_gdouble_to_guint64(value) |
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75 #define gst_guint64_to_gdouble(value) gst_util_guint64_to_gdouble(value) |
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76 #else |
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77 #define gst_gdouble_to_guint64(value) ((guint64) (value)) |
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78 #define gst_guint64_to_gdouble(value) ((gdouble) (value)) |
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79 #endif |
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80 |
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81 guint64 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom); |
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82 #ifdef __SYMBIAN32__ |
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83 IMPORT_C |
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84 #endif |
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85 |
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86 |
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87 guint64 gst_util_uint64_scale_int (guint64 val, gint num, gint denom); |
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88 #ifdef __SYMBIAN32__ |
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89 IMPORT_C |
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90 #endif |
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91 |
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92 |
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93 void gst_print_pad_caps (GString *buf, gint indent, GstPad *pad); |
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94 #ifdef __SYMBIAN32__ |
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95 IMPORT_C |
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96 #endif |
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97 |
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98 void gst_print_element_args (GString *buf, gint indent, GstElement *element); |
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99 #ifdef __SYMBIAN32__ |
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100 IMPORT_C |
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101 #endif |
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102 |
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103 |
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104 |
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105 GType gst_type_register_static_full (GType parent_type, |
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106 const gchar *type_name, |
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107 guint class_size, |
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108 GBaseInitFunc base_init, |
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109 GBaseFinalizeFunc base_finalize, |
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110 GClassInitFunc class_init, |
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111 GClassFinalizeFunc class_finalize, |
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112 gconstpointer class_data, |
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113 guint instance_size, |
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114 guint16 n_preallocs, |
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115 GInstanceInitFunc instance_init, |
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116 const GTypeValueTable *value_table, |
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117 GTypeFlags flags); |
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118 |
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119 |
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120 /* Macros for defining classes. Ideas taken from Bonobo, which took theirs |
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121 from Nautilus and GOB. */ |
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122 |
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123 /** |
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124 * GST_BOILERPLATE_FULL: |
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125 * @type: the name of the type struct |
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126 * @type_as_function: the prefix for the functions |
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127 * @parent_type: the parent type struct name |
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128 * @parent_type_macro: the parent type macro |
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129 * @additional_initializations: function pointer in the form of |
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130 * void additional_initializations (GType type) that can be used for |
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131 * initializing interfaces and the like |
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132 * |
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133 * Define the boilerplate type stuff to reduce typos and code size. Defines |
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134 * the get_type method and the parent_class static variable. |
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135 * |
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136 * <informalexample> |
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137 * <programlisting> |
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138 * GST_BOILERPLATE_FULL (GstFdSink, gst_fdsink, GstElement, GST_TYPE_ELEMENT, _do_init); |
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139 * </programlisting> |
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140 * </informalexample> |
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141 */ |
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142 #define GST_BOILERPLATE_FULL(type, type_as_function, parent_type, parent_type_macro, additional_initializations) \ |
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143 \ |
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144 static void type_as_function ## _base_init (gpointer g_class); \ |
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145 static void type_as_function ## _class_init (type ## Class *g_class);\ |
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146 static void type_as_function ## _init (type *object, \ |
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147 type ## Class *g_class);\ |
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148 static parent_type ## Class *parent_class = NULL; \ |
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149 static void \ |
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150 type_as_function ## _class_init_trampoline (gpointer g_class, \ |
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151 gpointer data) \ |
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152 { \ |
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153 parent_class = (parent_type ## Class *) \ |
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154 g_type_class_peek_parent (g_class); \ |
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155 type_as_function ## _class_init ((type ## Class *)g_class); \ |
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156 } \ |
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157 \ |
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158 GType type_as_function ## _get_type (void); \ |
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159 \ |
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160 __declspec(dllexport) GType \ |
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161 type_as_function ## _get_type (void) \ |
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162 { \ |
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163 static GType object_type = 0; \ |
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164 if (G_UNLIKELY (object_type == 0)) { \ |
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165 object_type = gst_type_register_static_full (parent_type_macro, #type, \ |
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166 sizeof (type ## Class), \ |
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167 type_as_function ## _base_init, \ |
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168 NULL, /* base_finalize */ \ |
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169 type_as_function ## _class_init_trampoline, \ |
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170 NULL, /* class_finalize */ \ |
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171 NULL, /* class_data */ \ |
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172 sizeof (type), \ |
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173 0, /* n_preallocs */ \ |
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174 (GInstanceInitFunc) type_as_function ## _init, \ |
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175 NULL, \ |
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176 (GTypeFlags) 0); \ |
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177 additional_initializations (object_type); \ |
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178 } \ |
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179 return object_type; \ |
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180 } |
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181 |
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182 #define __GST_DO_NOTHING(type) /* NOP */ |
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183 |
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184 /** |
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185 * GST_BOILERPLATE: |
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186 * @type: the name of the type struct |
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187 * @type_as_function: the prefix for the functions |
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188 * @parent_type: the parent type struct name |
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189 * @parent_type_macro: the parent type macro |
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190 * |
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191 * Define the boilerplate type stuff to reduce typos and code size. Defines |
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192 * the get_type method and the parent_class static variable. |
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193 * |
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194 * <informalexample> |
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195 * <programlisting> |
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196 * GST_BOILERPLATE (GstFdSink, gst_fdsink, GstElement, GST_TYPE_ELEMENT); |
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197 * </programlisting> |
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198 * </informalexample> |
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199 */ |
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200 #define GST_BOILERPLATE(type,type_as_function,parent_type,parent_type_macro) \ |
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201 GST_BOILERPLATE_FULL (type, type_as_function, parent_type, parent_type_macro, \ |
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202 __GST_DO_NOTHING) |
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203 |
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204 /* Like GST_BOILERPLATE, but makes the type 1) implement an interface, and 2) |
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205 * implement GstImplementsInterface for that type |
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206 * |
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207 * After this you will need to implement interface_as_function ## _supported |
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208 * and interface_as_function ## _interface_init |
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209 */ |
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210 /** |
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211 * GST_BOILERPLATE_WITH_INTERFACE: |
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212 * @type: the name of the type struct |
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213 * @type_as_function: the prefix for the functions |
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214 * @parent_type: the parent type struct name |
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215 * @parent_type_as_macro: the parent type macro |
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216 * @interface_type: the name of the interface type struct |
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217 * @interface_type_as_macro: the interface type macro |
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218 * @interface_as_function: the interface function name prefix |
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219 * |
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220 * Like GST_BOILERPLATE, but makes the type 1) implement an interface, and 2) |
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221 * implement GstImplementsInterface for that type. |
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222 * |
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223 * After this you will need to implement interface_as_function ## _supported |
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224 * and interface_as_function ## _interface_init |
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225 */ |
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226 #define GST_BOILERPLATE_WITH_INTERFACE(type, type_as_function, \ |
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227 parent_type, parent_type_as_macro, interface_type, \ |
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228 interface_type_as_macro, interface_as_function) \ |
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229 \ |
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230 static void interface_as_function ## _interface_init (interface_type ## Class *klass); \ |
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231 static gboolean interface_as_function ## _supported (type *object, GType iface_type); \ |
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232 \ |
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233 static void \ |
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234 type_as_function ## _implements_interface_init (GstImplementsInterfaceClass *klass) \ |
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235 { \ |
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236 klass->supported = (gboolean (*)(GstImplementsInterface*, GType))interface_as_function ## _supported; \ |
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237 } \ |
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238 \ |
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239 static void \ |
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240 type_as_function ## _init_interfaces (GType type) \ |
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241 { \ |
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242 static const GInterfaceInfo implements_iface_info = { \ |
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243 (GInterfaceInitFunc) type_as_function ## _implements_interface_init,\ |
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244 NULL, \ |
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245 NULL, \ |
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246 }; \ |
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247 static const GInterfaceInfo iface_info = { \ |
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248 (GInterfaceInitFunc) interface_as_function ## _interface_init, \ |
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249 NULL, \ |
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250 NULL, \ |
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251 }; \ |
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252 \ |
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253 g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE, \ |
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254 &implements_iface_info); \ |
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255 g_type_add_interface_static (type, interface_type_as_macro, \ |
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256 &iface_info); \ |
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257 } \ |
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258 \ |
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259 GST_BOILERPLATE_FULL (type, type_as_function, parent_type, \ |
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260 parent_type_as_macro, type_as_function ## _init_interfaces) |
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261 |
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262 /** |
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263 * GST_CALL_PARENT: |
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264 * @parent_class_cast: the name of the class cast macro for the parent type |
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265 * @name: name of the function to call |
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266 * @args: arguments enclosed in '( )' |
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267 * |
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268 * Just call the parent handler. This assumes that there is a variable |
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269 * named parent_class that points to the (duh!) parent class. Note that |
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270 * this macro is not to be used with things that return something, use |
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271 * the _WITH_DEFAULT version for that |
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272 */ |
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273 #define GST_CALL_PARENT(parent_class_cast, name, args) \ |
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274 ((parent_class_cast(parent_class)->name != NULL) ? \ |
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275 parent_class_cast(parent_class)->name args : (void) 0) |
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276 |
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277 /** |
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278 * GST_CALL_PARENT_WITH_DEFAULT: |
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279 * @parent_class_cast: the name of the class cast macro for the parent type |
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280 * @name: name of the function to call |
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281 * @args: arguments enclosed in '( )' |
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282 * @def_return: default result |
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283 * |
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284 * Same as GST_CALL_PARENT(), but in case there is no implementation, it |
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285 * evaluates to @def_return. |
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286 */ |
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287 #define GST_CALL_PARENT_WITH_DEFAULT(parent_class_cast, name, args, def_return)\ |
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288 ((parent_class_cast(parent_class)->name != NULL) ? \ |
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289 parent_class_cast(parent_class)->name args : def_return) |
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290 |
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291 /* Define possibly unaligned memory access method whether the type of |
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292 * architecture. */ |
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293 #if GST_HAVE_UNALIGNED_ACCESS |
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294 |
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295 #define _GST_GET(__data, __size, __end) \ |
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296 (GUINT##__size##_FROM_##__end (* ((guint##__size *) (__data)))) |
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297 |
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298 /** |
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299 * GST_READ_UINT64_BE: |
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300 * @data: memory location |
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301 * |
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302 * Read a 64 bit unsigned integer value in big endian format from the memory buffer. |
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303 */ |
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304 #define GST_READ_UINT64_BE(data) _GST_GET (data, 64, BE) |
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305 /** |
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306 * GST_READ_UINT64_LE: |
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307 * @data: memory location |
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308 * |
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309 * Read a 64 bit unsigned integer value in little endian format from the memory buffer. |
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310 */ |
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311 #define GST_READ_UINT64_LE(data) _GST_GET (data, 64, LE) |
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312 /** |
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313 * GST_READ_UINT32_BE: |
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314 * @data: memory location |
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315 * |
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316 * Read a 32 bit unsigned integer value in big endian format from the memory buffer. |
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317 */ |
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318 #define GST_READ_UINT32_BE(data) _GST_GET (data, 32, BE) |
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319 /** |
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320 * GST_READ_UINT32_LE: |
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321 * @data: memory location |
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322 * |
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323 * Read a 32 bit unsigned integer value in little endian format from the memory buffer. |
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324 */ |
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325 #define GST_READ_UINT32_LE(data) _GST_GET (data, 32, LE) |
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326 /** |
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327 * GST_READ_UINT16_BE: |
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328 * @data: memory location |
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329 * |
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330 * Read a 16 bit unsigned integer value in big endian format from the memory buffer. |
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331 */ |
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332 #define GST_READ_UINT16_BE(data) _GST_GET (data, 16, BE) |
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333 /** |
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334 * GST_READ_UINT16_LE: |
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335 * @data: memory location |
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336 * |
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337 * Read a 16 bit unsigned integer value in little endian format from the memory buffer. |
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338 */ |
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339 #define GST_READ_UINT16_LE(data) _GST_GET (data, 16, LE) |
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340 /** |
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341 * GST_READ_UINT8: |
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342 * @data: memory location |
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343 * |
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344 * Read an 8 bit unsigned integer value from the memory buffer. |
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345 */ |
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346 #define GST_READ_UINT8(data) (* ((guint8 *) (data))) |
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347 |
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348 #define _GST_PUT(__data, __size, __end, __num) \ |
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349 ((* (guint##__size *) (__data)) = GUINT##__size##_TO_##__end (__num)) |
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350 |
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351 /** |
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352 * GST_WRITE_UINT64_BE: |
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353 * @data: memory location |
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354 * @num: value to store |
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355 * |
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356 * Store a 64 bit unsigned integer value in big endian format into the memory buffer. |
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357 */ |
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358 #define GST_WRITE_UINT64_BE(data, num) _GST_PUT(data, 64, BE, num) |
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359 /** |
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360 * GST_WRITE_UINT64_LE: |
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361 * @data: memory location |
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362 * @num: value to store |
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363 * |
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364 * Store a 64 bit unsigned integer value in little endian format into the memory buffer. |
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365 */ |
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366 #define GST_WRITE_UINT64_LE(data, num) _GST_PUT(data, 64, LE, num) |
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367 /** |
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368 * GST_WRITE_UINT32_BE: |
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369 * @data: memory location |
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370 * @num: value to store |
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371 * |
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372 * Store a 32 bit unsigned integer value in big endian format into the memory buffer. |
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373 */ |
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374 #define GST_WRITE_UINT32_BE(data, num) _GST_PUT(data, 32, BE, num) |
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375 /** |
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376 * GST_WRITE_UINT32_LE: |
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377 * @data: memory location |
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378 * @num: value to store |
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379 * |
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380 * Store a 32 bit unsigned integer value in little endian format into the memory buffer. |
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381 */ |
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382 #define GST_WRITE_UINT32_LE(data, num) _GST_PUT(data, 32, LE, num) |
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383 /** |
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384 * GST_WRITE_UINT16_BE: |
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385 * @data: memory location |
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386 * @num: value to store |
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387 * |
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388 * Store a 16 bit unsigned integer value in big endian format into the memory buffer. |
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389 */ |
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390 #define GST_WRITE_UINT16_BE(data, num) _GST_PUT(data, 16, BE, num) |
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391 /** |
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392 * GST_WRITE_UINT16_LE: |
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393 * @data: memory location |
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394 * @num: value to store |
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395 * |
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396 * Store a 16 bit unsigned integer value in little endian format into the memory buffer. |
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397 */ |
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398 #define GST_WRITE_UINT16_LE(data, num) _GST_PUT(data, 16, LE, num) |
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399 /** |
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400 * GST_WRITE_UINT8: |
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401 * @data: memory location |
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402 * @num: value to store |
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403 * |
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404 * Store an 8 bit unsigned integer value into the memory buffer. |
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405 */ |
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406 #define GST_WRITE_UINT8(data, num) ((* (guint8 *) (data)) = (num)) |
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407 |
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408 #else /* GST_HAVE_UNALIGNED_ACCESS */ |
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409 |
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410 #define _GST_GET(__data, __idx, __size, __shift) \ |
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411 (((guint##__size) (((guint8 *) (__data))[__idx])) << __shift) |
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412 |
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413 #define GST_READ_UINT64_BE(data) (_GST_GET (data, 0, 64, 56) | \ |
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414 _GST_GET (data, 1, 64, 48) | \ |
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415 _GST_GET (data, 2, 64, 40) | \ |
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416 _GST_GET (data, 3, 64, 32) | \ |
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417 _GST_GET (data, 4, 64, 24) | \ |
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418 _GST_GET (data, 5, 64, 16) | \ |
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419 _GST_GET (data, 6, 64, 8) | \ |
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420 _GST_GET (data, 7, 64, 0)) |
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421 |
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422 #define GST_READ_UINT64_LE(data) (_GST_GET (data, 7, 64, 56) | \ |
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423 _GST_GET (data, 6, 64, 48) | \ |
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424 _GST_GET (data, 5, 64, 40) | \ |
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425 _GST_GET (data, 4, 64, 32) | \ |
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426 _GST_GET (data, 3, 64, 24) | \ |
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427 _GST_GET (data, 2, 64, 16) | \ |
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428 _GST_GET (data, 1, 64, 8) | \ |
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429 _GST_GET (data, 0, 64, 0)) |
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430 |
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431 #define GST_READ_UINT32_BE(data) (_GST_GET (data, 0, 32, 24) | \ |
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432 _GST_GET (data, 1, 32, 16) | \ |
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433 _GST_GET (data, 2, 32, 8) | \ |
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434 _GST_GET (data, 3, 32, 0)) |
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435 |
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436 #define GST_READ_UINT32_LE(data) (_GST_GET (data, 3, 32, 24) | \ |
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437 _GST_GET (data, 2, 32, 16) | \ |
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438 _GST_GET (data, 1, 32, 8) | \ |
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439 _GST_GET (data, 0, 32, 0)) |
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440 |
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441 #define GST_READ_UINT16_BE(data) (_GST_GET (data, 0, 16, 8) | \ |
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442 _GST_GET (data, 1, 16, 0)) |
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443 |
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444 #define GST_READ_UINT16_LE(data) (_GST_GET (data, 1, 16, 8) | \ |
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445 _GST_GET (data, 0, 16, 0)) |
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446 |
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447 #define GST_READ_UINT8(data) (_GST_GET (data, 0, 8, 0)) |
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448 |
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449 #define _GST_PUT(__data, __idx, __size, __shift, __num) \ |
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450 (((guint8 *) (__data))[__idx] = (((guint##__size) __num) >> __shift) & 0xff) |
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451 |
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452 #define GST_WRITE_UINT64_BE(data, num) do { \ |
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453 _GST_PUT (data, 0, 64, 56, num); \ |
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454 _GST_PUT (data, 1, 64, 48, num); \ |
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455 _GST_PUT (data, 2, 64, 40, num); \ |
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456 _GST_PUT (data, 3, 64, 32, num); \ |
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457 _GST_PUT (data, 4, 64, 24, num); \ |
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458 _GST_PUT (data, 5, 64, 16, num); \ |
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459 _GST_PUT (data, 6, 64, 8, num); \ |
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460 _GST_PUT (data, 7, 64, 0, num); \ |
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461 } while (0) |
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462 |
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463 #define GST_WRITE_UINT64_LE(data, num) do { \ |
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464 _GST_PUT (data, 0, 64, 0, num); \ |
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465 _GST_PUT (data, 1, 64, 8, num); \ |
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466 _GST_PUT (data, 2, 64, 16, num); \ |
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467 _GST_PUT (data, 3, 64, 24, num); \ |
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468 _GST_PUT (data, 4, 64, 32, num); \ |
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469 _GST_PUT (data, 5, 64, 40, num); \ |
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470 _GST_PUT (data, 6, 64, 48, num); \ |
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471 _GST_PUT (data, 7, 64, 56, num); \ |
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472 } while (0) |
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473 |
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474 #define GST_WRITE_UINT32_BE(data, num) do { \ |
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475 _GST_PUT (data, 0, 32, 24, num); \ |
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476 _GST_PUT (data, 1, 32, 16, num); \ |
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477 _GST_PUT (data, 2, 32, 8, num); \ |
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478 _GST_PUT (data, 3, 32, 0, num); \ |
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479 } while (0) |
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480 |
|
481 #define GST_WRITE_UINT32_LE(data, num) do { \ |
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482 _GST_PUT (data, 0, 32, 0, num); \ |
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483 _GST_PUT (data, 1, 32, 8, num); \ |
|
484 _GST_PUT (data, 2, 32, 16, num); \ |
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485 _GST_PUT (data, 3, 32, 24, num); \ |
|
486 } while (0) |
|
487 |
|
488 #define GST_WRITE_UINT16_BE(data, num) do { \ |
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489 _GST_PUT (data, 0, 16, 8, num); \ |
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490 _GST_PUT (data, 1, 16, 0, num); \ |
|
491 } while (0) |
|
492 |
|
493 #define GST_WRITE_UINT16_LE(data, num) do { \ |
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494 _GST_PUT (data, 0, 16, 0, num); \ |
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495 _GST_PUT (data, 1, 16, 8, num); \ |
|
496 } while (0) |
|
497 |
|
498 #define GST_WRITE_UINT8(data, num) do { \ |
|
499 _GST_PUT (data, 0, 8, 0, num); \ |
|
500 } while (0) |
|
501 |
|
502 #endif /* GST_HAVE_UNALIGNED_ACCESS */ |
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503 |
|
504 |
|
505 /* Miscellaneous utility macros */ |
|
506 |
|
507 /** |
|
508 * GST_ROUND_UP_2: |
|
509 * @num: integer value to round up |
|
510 * |
|
511 * Rounds an integer value up to the next multiple of 2. |
|
512 */ |
|
513 #define GST_ROUND_UP_2(num) (((num)+1)&~1) |
|
514 /** |
|
515 * GST_ROUND_UP_4: |
|
516 * @num: integer value to round up |
|
517 * |
|
518 * Rounds an integer value up to the next multiple of 4. |
|
519 */ |
|
520 #define GST_ROUND_UP_4(num) (((num)+3)&~3) |
|
521 /** |
|
522 * GST_ROUND_UP_8: |
|
523 * @num: integer value to round up |
|
524 * |
|
525 * Rounds an integer value up to the next multiple of 8. |
|
526 */ |
|
527 #define GST_ROUND_UP_8(num) (((num)+7)&~7) |
|
528 /** |
|
529 * GST_ROUND_UP_16: |
|
530 * @num: integer value to round up |
|
531 * |
|
532 * Rounds an integer value up to the next multiple of 16. |
|
533 */ |
|
534 #define GST_ROUND_UP_16(num) (((num)+15)&~15) |
|
535 /** |
|
536 * GST_ROUND_UP_32: |
|
537 * @num: integer value to round up |
|
538 * |
|
539 * Rounds an integer value up to the next multiple of 32. |
|
540 */ |
|
541 #define GST_ROUND_UP_32(num) (((num)+31)&~31) |
|
542 /** |
|
543 * GST_ROUND_UP_64: |
|
544 * @num: integer value to round up |
|
545 * |
|
546 * Rounds an integer value up to the next multiple of 64. |
|
547 */ |
|
548 #define GST_ROUND_UP_64(num) (((num)+63)&~63) |
|
549 |
|
550 /** |
|
551 * GST_ROUND_DOWN_2: |
|
552 * @num: integer value to round down |
|
553 * |
|
554 * Rounds an integer value down to the next multiple of 2. |
|
555 * |
|
556 * Since: 0.10.12 |
|
557 */ |
|
558 #define GST_ROUND_DOWN_2(num) ((num)&(~1)) |
|
559 /** |
|
560 * GST_ROUND_DOWN_4: |
|
561 * @num: integer value to round down |
|
562 * |
|
563 * Rounds an integer value down to the next multiple of 4. |
|
564 * |
|
565 * Since: 0.10.12 |
|
566 */ |
|
567 #define GST_ROUND_DOWN_4(num) ((num)&(~3)) |
|
568 /** |
|
569 * GST_ROUND_DOWN_8: |
|
570 * @num: integer value to round down |
|
571 * |
|
572 * Rounds an integer value down to the next multiple of 8. |
|
573 * |
|
574 * Since: 0.10.12 |
|
575 */ |
|
576 #define GST_ROUND_DOWN_8(num) ((num)&(~7)) |
|
577 /** |
|
578 * GST_ROUND_DOWN_16: |
|
579 * @num: integer value to round down |
|
580 * |
|
581 * Rounds an integer value down to the next multiple of 16. |
|
582 * |
|
583 * Since: 0.10.12 |
|
584 */ |
|
585 #define GST_ROUND_DOWN_16(num) ((num)&(~15)) |
|
586 /** |
|
587 * GST_ROUND_DOWN_32: |
|
588 * @num: integer value to round down |
|
589 * |
|
590 * Rounds an integer value down to the next multiple of 32. |
|
591 * |
|
592 * Since: 0.10.12 |
|
593 */ |
|
594 #define GST_ROUND_DOWN_32(num) ((num)&(~31)) |
|
595 /** |
|
596 * GST_ROUND_DOWN_64: |
|
597 * @num: integer value to round down |
|
598 * |
|
599 * Rounds an integer value down to the next multiple of 64. |
|
600 * |
|
601 * Since: 0.10.12 |
|
602 */ |
|
603 #define GST_ROUND_DOWN_64(num) ((num)&(~63)) |
|
604 |
|
605 void gst_object_default_error (GstObject * source, |
|
606 GError * error, gchar * debug); |
|
607 |
|
608 /* element functions */ |
|
609 #ifdef __SYMBIAN32__ |
|
610 IMPORT_C |
|
611 #endif |
|
612 |
|
613 void gst_element_create_all_pads (GstElement *element); |
|
614 #ifdef __SYMBIAN32__ |
|
615 IMPORT_C |
|
616 #endif |
|
617 |
|
618 GstPad* gst_element_get_compatible_pad (GstElement *element, GstPad *pad, |
|
619 const GstCaps *caps); |
|
620 #ifdef __SYMBIAN32__ |
|
621 IMPORT_C |
|
622 #endif |
|
623 |
|
624 |
|
625 GstPadTemplate* gst_element_get_compatible_pad_template (GstElement *element, GstPadTemplate *compattempl); |
|
626 #ifdef __SYMBIAN32__ |
|
627 IMPORT_C |
|
628 #endif |
|
629 |
|
630 |
|
631 G_CONST_RETURN gchar* gst_element_state_get_name (GstState state); |
|
632 #ifdef __SYMBIAN32__ |
|
633 IMPORT_C |
|
634 #endif |
|
635 |
|
636 G_CONST_RETURN gchar * gst_element_state_change_return_get_name (GstStateChangeReturn state_ret); |
|
637 #ifdef __SYMBIAN32__ |
|
638 IMPORT_C |
|
639 #endif |
|
640 |
|
641 |
|
642 gboolean gst_element_link (GstElement *src, GstElement *dest); |
|
643 #ifdef __SYMBIAN32__ |
|
644 IMPORT_C |
|
645 #endif |
|
646 |
|
647 gboolean gst_element_link_many (GstElement *element_1, |
|
648 GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; |
|
649 #ifdef __SYMBIAN32__ |
|
650 IMPORT_C |
|
651 #endif |
|
652 |
|
653 gboolean gst_element_link_filtered (GstElement * src, |
|
654 GstElement * dest, |
|
655 GstCaps *filter); |
|
656 #ifdef __SYMBIAN32__ |
|
657 IMPORT_C |
|
658 #endif |
|
659 |
|
660 void gst_element_unlink (GstElement *src, GstElement *dest); |
|
661 #ifdef __SYMBIAN32__ |
|
662 IMPORT_C |
|
663 #endif |
|
664 |
|
665 void gst_element_unlink_many (GstElement *element_1, |
|
666 GstElement *element_2, ...) G_GNUC_NULL_TERMINATED; |
|
667 #ifdef __SYMBIAN32__ |
|
668 IMPORT_C |
|
669 #endif |
|
670 |
|
671 |
|
672 gboolean gst_element_link_pads (GstElement *src, const gchar *srcpadname, |
|
673 GstElement *dest, const gchar *destpadname); |
|
674 #ifdef __SYMBIAN32__ |
|
675 IMPORT_C |
|
676 #endif |
|
677 |
|
678 void gst_element_unlink_pads (GstElement *src, const gchar *srcpadname, |
|
679 GstElement *dest, const gchar *destpadname); |
|
680 #ifdef __SYMBIAN32__ |
|
681 IMPORT_C |
|
682 #endif |
|
683 |
|
684 |
|
685 gboolean gst_element_link_pads_filtered (GstElement * src, const gchar * srcpadname, |
|
686 GstElement * dest, const gchar * destpadname, |
|
687 GstCaps *filter); |
|
688 #ifdef __SYMBIAN32__ |
|
689 IMPORT_C |
|
690 #endif |
|
691 |
|
692 |
|
693 gboolean gst_element_seek_simple (GstElement *element, |
|
694 GstFormat format, |
|
695 GstSeekFlags seek_flags, |
|
696 gint64 seek_pos); |
|
697 |
|
698 /* util elementfactory functions */ |
|
699 #ifdef __SYMBIAN32__ |
|
700 IMPORT_C |
|
701 #endif |
|
702 |
|
703 gboolean gst_element_factory_can_src_caps(GstElementFactory *factory, const GstCaps *caps); |
|
704 #ifdef __SYMBIAN32__ |
|
705 IMPORT_C |
|
706 #endif |
|
707 |
|
708 gboolean gst_element_factory_can_sink_caps(GstElementFactory *factory, const GstCaps *caps); |
|
709 |
|
710 /* util query functions */ |
|
711 #ifdef __SYMBIAN32__ |
|
712 IMPORT_C |
|
713 #endif |
|
714 |
|
715 gboolean gst_element_query_position (GstElement *element, GstFormat *format, |
|
716 gint64 *cur); |
|
717 #ifdef __SYMBIAN32__ |
|
718 IMPORT_C |
|
719 #endif |
|
720 |
|
721 gboolean gst_element_query_duration (GstElement *element, GstFormat *format, |
|
722 gint64 *duration); |
|
723 #ifdef __SYMBIAN32__ |
|
724 IMPORT_C |
|
725 #endif |
|
726 |
|
727 gboolean gst_element_query_convert (GstElement *element, GstFormat src_format, gint64 src_val, |
|
728 GstFormat *dest_format, gint64 *dest_val); |
|
729 |
|
730 /* element class functions */ |
|
731 #ifdef __SYMBIAN32__ |
|
732 IMPORT_C |
|
733 #endif |
|
734 |
|
735 void gst_element_class_install_std_props (GstElementClass * klass, |
|
736 const gchar * first_name, ...) G_GNUC_NULL_TERMINATED; |
|
737 |
|
738 /* pad functions */ |
|
739 #ifdef __SYMBIAN32__ |
|
740 IMPORT_C |
|
741 #endif |
|
742 |
|
743 gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad); |
|
744 #ifdef __SYMBIAN32__ |
|
745 IMPORT_C |
|
746 #endif |
|
747 |
|
748 |
|
749 void gst_pad_use_fixed_caps (GstPad *pad); |
|
750 #ifdef __SYMBIAN32__ |
|
751 IMPORT_C |
|
752 #endif |
|
753 |
|
754 GstCaps* gst_pad_get_fixed_caps_func (GstPad *pad); |
|
755 #ifdef __SYMBIAN32__ |
|
756 IMPORT_C |
|
757 #endif |
|
758 |
|
759 GstCaps* gst_pad_proxy_getcaps (GstPad * pad); |
|
760 #ifdef __SYMBIAN32__ |
|
761 IMPORT_C |
|
762 #endif |
|
763 |
|
764 gboolean gst_pad_proxy_setcaps (GstPad * pad, GstCaps * caps); |
|
765 #ifdef __SYMBIAN32__ |
|
766 IMPORT_C |
|
767 #endif |
|
768 |
|
769 |
|
770 GstElement* gst_pad_get_parent_element (GstPad *pad); |
|
771 |
|
772 /* util query functions */ |
|
773 #ifdef __SYMBIAN32__ |
|
774 IMPORT_C |
|
775 #endif |
|
776 |
|
777 gboolean gst_pad_query_position (GstPad *pad, GstFormat *format, |
|
778 gint64 *cur); |
|
779 #ifdef __SYMBIAN32__ |
|
780 IMPORT_C |
|
781 #endif |
|
782 |
|
783 gboolean gst_pad_query_duration (GstPad *pad, GstFormat *format, |
|
784 gint64 *duration); |
|
785 #ifdef __SYMBIAN32__ |
|
786 IMPORT_C |
|
787 #endif |
|
788 |
|
789 gboolean gst_pad_query_convert (GstPad *pad, GstFormat src_format, gint64 src_val, |
|
790 GstFormat *dest_format, gint64 *dest_val); |
|
791 #ifdef __SYMBIAN32__ |
|
792 IMPORT_C |
|
793 #endif |
|
794 |
|
795 |
|
796 gboolean gst_pad_query_peer_position (GstPad *pad, GstFormat *format, |
|
797 gint64 *cur); |
|
798 #ifdef __SYMBIAN32__ |
|
799 IMPORT_C |
|
800 #endif |
|
801 |
|
802 gboolean gst_pad_query_peer_duration (GstPad *pad, GstFormat *format, |
|
803 gint64 *duration); |
|
804 #ifdef __SYMBIAN32__ |
|
805 IMPORT_C |
|
806 #endif |
|
807 |
|
808 gboolean gst_pad_query_peer_convert (GstPad *pad, GstFormat src_format, gint64 src_val, |
|
809 GstFormat *dest_format, gint64 *dest_val); |
|
810 |
|
811 /* bin functions */ |
|
812 #ifdef __SYMBIAN32__ |
|
813 IMPORT_C |
|
814 #endif |
|
815 |
|
816 void gst_bin_add_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; |
|
817 #ifdef __SYMBIAN32__ |
|
818 IMPORT_C |
|
819 #endif |
|
820 |
|
821 void gst_bin_remove_many (GstBin *bin, GstElement *element_1, ...) G_GNUC_NULL_TERMINATED; |
|
822 #ifdef __SYMBIAN32__ |
|
823 IMPORT_C |
|
824 #endif |
|
825 |
|
826 GstPad * gst_bin_find_unconnected_pad (GstBin *bin, GstPadDirection direction); |
|
827 |
|
828 /* buffer functions */ |
|
829 #ifdef __SYMBIAN32__ |
|
830 IMPORT_C |
|
831 #endif |
|
832 |
|
833 GstBuffer * gst_buffer_merge (GstBuffer * buf1, GstBuffer * buf2); |
|
834 #ifdef __SYMBIAN32__ |
|
835 IMPORT_C |
|
836 #endif |
|
837 |
|
838 GstBuffer * gst_buffer_join (GstBuffer * buf1, GstBuffer * buf2); |
|
839 #ifndef GST_DISABLE_DEPRECATED |
|
840 void gst_buffer_stamp (GstBuffer * dest, const GstBuffer * src); |
|
841 #endif /* GST_DISABLE_DEPRECATED */ |
|
842 |
|
843 /* atomic functions */ |
|
844 #ifdef __SYMBIAN32__ |
|
845 IMPORT_C |
|
846 #endif |
|
847 |
|
848 void gst_atomic_int_set (gint * atomic_int, gint value); |
|
849 |
|
850 /* probes */ |
|
851 #ifdef __SYMBIAN32__ |
|
852 IMPORT_C |
|
853 #endif |
|
854 |
|
855 gulong gst_pad_add_data_probe (GstPad * pad, |
|
856 GCallback handler, |
|
857 gpointer data); |
|
858 #ifdef __SYMBIAN32__ |
|
859 IMPORT_C |
|
860 #endif |
|
861 |
|
862 void gst_pad_remove_data_probe (GstPad * pad, guint handler_id); |
|
863 #ifdef __SYMBIAN32__ |
|
864 IMPORT_C |
|
865 #endif |
|
866 |
|
867 gulong gst_pad_add_event_probe (GstPad * pad, |
|
868 GCallback handler, |
|
869 gpointer data); |
|
870 #ifdef __SYMBIAN32__ |
|
871 IMPORT_C |
|
872 #endif |
|
873 |
|
874 void gst_pad_remove_event_probe (GstPad * pad, guint handler_id); |
|
875 #ifdef __SYMBIAN32__ |
|
876 IMPORT_C |
|
877 #endif |
|
878 |
|
879 gulong gst_pad_add_buffer_probe (GstPad * pad, |
|
880 GCallback handler, |
|
881 gpointer data); |
|
882 #ifdef __SYMBIAN32__ |
|
883 IMPORT_C |
|
884 #endif |
|
885 |
|
886 void gst_pad_remove_buffer_probe (GstPad * pad, guint handler_id); |
|
887 |
|
888 /* tag emission utility functions */ |
|
889 #ifdef __SYMBIAN32__ |
|
890 IMPORT_C |
|
891 #endif |
|
892 |
|
893 void gst_element_found_tags_for_pad (GstElement * element, |
|
894 GstPad * pad, |
|
895 GstTagList * list); |
|
896 #ifdef __SYMBIAN32__ |
|
897 IMPORT_C |
|
898 #endif |
|
899 |
|
900 void gst_element_found_tags (GstElement * element, |
|
901 GstTagList * list); |
|
902 |
|
903 /* parse utility functions */ |
|
904 #ifdef __SYMBIAN32__ |
|
905 IMPORT_C |
|
906 #endif |
|
907 |
|
908 GstElement * gst_parse_bin_from_description (const gchar * bin_description, |
|
909 gboolean ghost_unconnected_pads, |
|
910 GError ** err); |
|
911 #ifdef __SYMBIAN32__ |
|
912 IMPORT_C |
|
913 #endif |
|
914 |
|
915 |
|
916 GstClockTime gst_util_get_timestamp (void); |
|
917 |
|
918 G_END_DECLS |
|
919 |
|
920 #endif /* __GST_UTILS_H__ */ |