1 /* 2 * This file is part of gtkD. 3 * 4 * gtkD is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU Lesser General Public License 6 * as published by the Free Software Foundation; either version 3 7 * of the License, or (at your option) any later version, with 8 * some exceptions, please read the COPYING file. 9 * 10 * gtkD is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public License 16 * along with gtkD; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA 18 */ 19 20 // generated automatically - do not change 21 // find conversion definition on APILookup.txt 22 // implement new conversion functionalities on the wrap.utils pakage 23 24 25 module gstreamer.TypeFind; 26 27 private import glib.Str; 28 private import gstreamer.Caps; 29 private import gstreamer.Plugin; 30 private import gstreamerc.gstreamer; 31 public import gstreamerc.gstreamertypes; 32 33 34 /** 35 * The following functions allow you to detect the media type of an unknown 36 * stream. 37 */ 38 public class TypeFind 39 { 40 /** the main Gtk struct */ 41 protected GstTypeFind* gstTypeFind; 42 protected bool ownedRef; 43 44 /** Get the main Gtk struct */ 45 public GstTypeFind* getTypeFindStruct(bool transferOwnership = false) 46 { 47 if (transferOwnership) 48 ownedRef = false; 49 return gstTypeFind; 50 } 51 52 /** the main Gtk struct as a void* */ 53 protected void* getStruct() 54 { 55 return cast(void*)gstTypeFind; 56 } 57 58 /** 59 * Sets our main struct and passes it to the parent class. 60 */ 61 public this (GstTypeFind* gstTypeFind, bool ownedRef = false) 62 { 63 this.gstTypeFind = gstTypeFind; 64 this.ownedRef = ownedRef; 65 } 66 67 /** 68 * Returns the size bytes of the stream to identify beginning at offset. If 69 * offset is a positive number, the offset is relative to the beginning of the 70 * stream, if offset is a negative number the offset is relative to the end of 71 * the stream. The returned memory is valid until the typefinding function 72 * returns and must not be freed. 73 * Params: 74 * offset = The offset 75 * size = The number of bytes to return 76 * Returns: the requested data, or NULL if that data is not available. 77 */ 78 public ubyte[] peek(long offset, uint size) 79 { 80 ubyte* buff = gst_type_find_peek(gstTypeFind, offset, size); 81 82 return buff[0 .. size]; 83 } 84 85 /** 86 */ 87 88 /** 89 * Get the length of the data stream. 90 * 91 * Returns: The length of the data stream, or 0 if it is not available. 92 */ 93 public ulong getLength() 94 { 95 return gst_type_find_get_length(gstTypeFind); 96 } 97 98 /** 99 * If a #GstTypeFindFunction calls this function it suggests the caps with the 100 * given probability. A #GstTypeFindFunction may supply different suggestions 101 * in one call. 102 * It is up to the caller of the #GstTypeFindFunction to interpret these values. 103 * 104 * Params: 105 * probability = The probability in percent that the suggestion is right 106 * caps = The fixed #GstCaps to suggest 107 */ 108 public void suggest(uint probability, Caps caps) 109 { 110 gst_type_find_suggest(gstTypeFind, probability, (caps is null) ? null : caps.getCapsStruct()); 111 } 112 113 /** 114 * Registers a new typefind function to be used for typefinding. After 115 * registering this function will be available for typefinding. 116 * This function is typically called during an element's plugin initialization. 117 * 118 * Params: 119 * plugin = A #GstPlugin, or %NULL for a static typefind function 120 * name = The name for registering 121 * rank = The rank (or importance) of this typefind function 122 * func = The #GstTypeFindFunction to use 123 * extensions = Optional comma-separated list of extensions 124 * that could belong to this type 125 * possibleCaps = Optionally the caps that could be returned when typefinding 126 * succeeds 127 * data = Optional user data. This user data must be available until the plugin 128 * is unloaded. 129 * dataNotify = a #GDestroyNotify that will be called on @data when the plugin 130 * is unloaded. 131 * 132 * Returns: %TRUE on success, %FALSE otherwise 133 */ 134 public static bool register(Plugin plugin, string name, uint rank, GstTypeFindFunction func, string extensions, Caps possibleCaps, void* data, GDestroyNotify dataNotify) 135 { 136 return gst_type_find_register((plugin is null) ? null : plugin.getPluginStruct(), Str.toStringz(name), rank, func, Str.toStringz(extensions), (possibleCaps is null) ? null : possibleCaps.getCapsStruct(), data, dataNotify) != 0; 137 } 138 139 /** */ 140 public static GType typeFindGetType() 141 { 142 return gst_type_find_get_type(); 143 } 144 }