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 gst.base.BitReader; 26 27 private import glib.ConstructionException; 28 private import gobject.ObjectG; 29 private import gst.base.c.functions; 30 public import gst.base.c.types; 31 private import gtkd.Loader; 32 33 34 /** 35 * #GstBitReader provides a bit reader that can read any number of bits 36 * from a memory buffer. It provides functions for reading any number of bits 37 * into 8, 16, 32 and 64 bit variables. 38 */ 39 public class BitReader 40 { 41 /** the main Gtk struct */ 42 protected GstBitReader* gstBitReader; 43 protected bool ownedRef; 44 45 /** Get the main Gtk struct */ 46 public GstBitReader* getBitReaderStruct(bool transferOwnership = false) 47 { 48 if (transferOwnership) 49 ownedRef = false; 50 return gstBitReader; 51 } 52 53 /** the main Gtk struct as a void* */ 54 protected void* getStruct() 55 { 56 return cast(void*)gstBitReader; 57 } 58 59 /** 60 * Sets our main struct and passes it to the parent class. 61 */ 62 public this (GstBitReader* gstBitReader, bool ownedRef = false) 63 { 64 this.gstBitReader = gstBitReader; 65 this.ownedRef = ownedRef; 66 } 67 68 ~this () 69 { 70 if ( Linker.isLoaded(LIBRARY_GSTBASE) && ownedRef ) 71 gst_bit_reader_free(gstBitReader); 72 } 73 74 75 /** 76 * Frees a #GstBitReader instance, which was previously allocated by 77 * gst_bit_reader_new(). 78 */ 79 public void free() 80 { 81 gst_bit_reader_free(gstBitReader); 82 ownedRef = false; 83 } 84 85 /** 86 * Read @nbits bits into @val and update the current position. 87 * 88 * Params: 89 * val = Pointer to a #guint16 to store the result 90 * nbits = number of bits to read 91 * 92 * Returns: %TRUE if successful, %FALSE otherwise. 93 */ 94 public bool getBitsUint16(out ushort val, uint nbits) 95 { 96 return gst_bit_reader_get_bits_uint16(gstBitReader, &val, nbits) != 0; 97 } 98 99 /** 100 * Read @nbits bits into @val and update the current position. 101 * 102 * Params: 103 * val = Pointer to a #guint32 to store the result 104 * nbits = number of bits to read 105 * 106 * Returns: %TRUE if successful, %FALSE otherwise. 107 */ 108 public bool getBitsUint32(out uint val, uint nbits) 109 { 110 return gst_bit_reader_get_bits_uint32(gstBitReader, &val, nbits) != 0; 111 } 112 113 /** 114 * Read @nbits bits into @val and update the current position. 115 * 116 * Params: 117 * val = Pointer to a #guint64 to store the result 118 * nbits = number of bits to read 119 * 120 * Returns: %TRUE if successful, %FALSE otherwise. 121 */ 122 public bool getBitsUint64(out ulong val, uint nbits) 123 { 124 return gst_bit_reader_get_bits_uint64(gstBitReader, &val, nbits) != 0; 125 } 126 127 /** 128 * Read @nbits bits into @val and update the current position. 129 * 130 * Params: 131 * val = Pointer to a #guint8 to store the result 132 * nbits = number of bits to read 133 * 134 * Returns: %TRUE if successful, %FALSE otherwise. 135 */ 136 public bool getBitsUint8(out ubyte val, uint nbits) 137 { 138 return gst_bit_reader_get_bits_uint8(gstBitReader, &val, nbits) != 0; 139 } 140 141 /** 142 * Returns the current position of a #GstBitReader instance in bits. 143 * 144 * Returns: The current position of @reader in bits. 145 */ 146 public uint getPos() 147 { 148 return gst_bit_reader_get_pos(gstBitReader); 149 } 150 151 /** 152 * Returns the remaining number of bits of a #GstBitReader instance. 153 * 154 * Returns: The remaining number of bits of @reader instance. 155 */ 156 public uint getRemaining() 157 { 158 return gst_bit_reader_get_remaining(gstBitReader); 159 } 160 161 /** 162 * Returns the total number of bits of a #GstBitReader instance. 163 * 164 * Returns: The total number of bits of @reader instance. 165 */ 166 public uint getSize() 167 { 168 return gst_bit_reader_get_size(gstBitReader); 169 } 170 171 /** 172 * Initializes a #GstBitReader instance to read from @data. This function 173 * can be called on already initialized instances. 174 * 175 * Params: 176 * data = data from which the bit reader should read 177 */ 178 public void init(ubyte[] data) 179 { 180 gst_bit_reader_init(gstBitReader, data.ptr, cast(uint)data.length); 181 } 182 183 /** 184 * Read @nbits bits into @val but keep the current position. 185 * 186 * Params: 187 * val = Pointer to a #guint16 to store the result 188 * nbits = number of bits to read 189 * 190 * Returns: %TRUE if successful, %FALSE otherwise. 191 */ 192 public bool peekBitsUint16(out ushort val, uint nbits) 193 { 194 return gst_bit_reader_peek_bits_uint16(gstBitReader, &val, nbits) != 0; 195 } 196 197 /** 198 * Read @nbits bits into @val but keep the current position. 199 * 200 * Params: 201 * val = Pointer to a #guint32 to store the result 202 * nbits = number of bits to read 203 * 204 * Returns: %TRUE if successful, %FALSE otherwise. 205 */ 206 public bool peekBitsUint32(out uint val, uint nbits) 207 { 208 return gst_bit_reader_peek_bits_uint32(gstBitReader, &val, nbits) != 0; 209 } 210 211 /** 212 * Read @nbits bits into @val but keep the current position. 213 * 214 * Params: 215 * val = Pointer to a #guint64 to store the result 216 * nbits = number of bits to read 217 * 218 * Returns: %TRUE if successful, %FALSE otherwise. 219 */ 220 public bool peekBitsUint64(out ulong val, uint nbits) 221 { 222 return gst_bit_reader_peek_bits_uint64(gstBitReader, &val, nbits) != 0; 223 } 224 225 /** 226 * Read @nbits bits into @val but keep the current position. 227 * 228 * Params: 229 * val = Pointer to a #guint8 to store the result 230 * nbits = number of bits to read 231 * 232 * Returns: %TRUE if successful, %FALSE otherwise. 233 */ 234 public bool peekBitsUint8(out ubyte val, uint nbits) 235 { 236 return gst_bit_reader_peek_bits_uint8(gstBitReader, &val, nbits) != 0; 237 } 238 239 /** 240 * Sets the new position of a #GstBitReader instance to @pos in bits. 241 * 242 * Params: 243 * pos = The new position in bits 244 * 245 * Returns: %TRUE if the position could be set successfully, %FALSE 246 * otherwise. 247 */ 248 public bool setPos(uint pos) 249 { 250 return gst_bit_reader_set_pos(gstBitReader, pos) != 0; 251 } 252 253 /** 254 * Skips @nbits bits of the #GstBitReader instance. 255 * 256 * Params: 257 * nbits = the number of bits to skip 258 * 259 * Returns: %TRUE if @nbits bits could be skipped, %FALSE otherwise. 260 */ 261 public bool skip(uint nbits) 262 { 263 return gst_bit_reader_skip(gstBitReader, nbits) != 0; 264 } 265 266 /** 267 * Skips until the next byte. 268 * 269 * Returns: %TRUE if successful, %FALSE otherwise. 270 */ 271 public bool skipToByte() 272 { 273 return gst_bit_reader_skip_to_byte(gstBitReader) != 0; 274 } 275 276 /** 277 * Create a new #GstBitReader instance, which will read from @data. 278 * 279 * Free-function: gst_bit_reader_free 280 * 281 * Params: 282 * data = Data from which the #GstBitReader 283 * should read 284 * 285 * Returns: a new #GstBitReader instance 286 * 287 * Throws: ConstructionException GTK+ fails to create the object. 288 */ 289 public this(ubyte[] data) 290 { 291 auto __p = gst_bit_reader_new(data.ptr, cast(uint)data.length); 292 293 if(__p is null) 294 { 295 throw new ConstructionException("null returned by new"); 296 } 297 298 this(cast(GstBitReader*) __p); 299 } 300 }