1 /* GStreamer byte reader
3 * Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
4 * Copyright (C) 2009 Tim-Philipp Müller <tim centricular net>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
22 #ifndef __GST_BYTE_READER_H__
23 #define __GST_BYTE_READER_H__
29 #define GST_BYTE_READER(reader) ((GstByteReader *) (reader))
33 * @data: Data from which the bit reader will read
34 * @size: Size of @data in bytes
35 * @byte: Current byte position
37 * A byte reader instance.
43 guint byte; /* Byte position */
46 GstByteReader * gst_byte_reader_new (const guint8 *data, guint size);
47 void gst_byte_reader_free (GstByteReader *reader);
49 void gst_byte_reader_init (GstByteReader *reader, const guint8 *data, guint size);
51 gboolean gst_byte_reader_set_pos (GstByteReader *reader, guint pos);
53 guint gst_byte_reader_get_pos (const GstByteReader *reader);
54 guint gst_byte_reader_get_remaining (const GstByteReader *reader);
56 guint gst_byte_reader_get_size (const GstByteReader *reader);
58 gboolean gst_byte_reader_skip (GstByteReader *reader, guint nbytes);
60 gboolean gst_byte_reader_get_uint8 (GstByteReader *reader, guint8 *val);
61 gboolean gst_byte_reader_get_int8 (GstByteReader *reader, gint8 *val);
62 gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader, guint16 *val);
63 gboolean gst_byte_reader_get_int16_le (GstByteReader *reader, gint16 *val);
64 gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader, guint16 *val);
65 gboolean gst_byte_reader_get_int16_be (GstByteReader *reader, gint16 *val);
66 gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader, guint32 *val);
67 gboolean gst_byte_reader_get_int24_le (GstByteReader *reader, gint32 *val);
68 gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader, guint32 *val);
69 gboolean gst_byte_reader_get_int24_be (GstByteReader *reader, gint32 *val);
70 gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader, guint32 *val);
71 gboolean gst_byte_reader_get_int32_le (GstByteReader *reader, gint32 *val);
72 gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader, guint32 *val);
73 gboolean gst_byte_reader_get_int32_be (GstByteReader *reader, gint32 *val);
74 gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader, guint64 *val);
75 gboolean gst_byte_reader_get_int64_le (GstByteReader *reader, gint64 *val);
76 gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader, guint64 *val);
77 gboolean gst_byte_reader_get_int64_be (GstByteReader *reader, gint64 *val);
79 gboolean gst_byte_reader_peek_uint8 (const GstByteReader *reader, guint8 *val);
80 gboolean gst_byte_reader_peek_int8 (const GstByteReader *reader, gint8 *val);
81 gboolean gst_byte_reader_peek_uint16_le (const GstByteReader *reader, guint16 *val);
82 gboolean gst_byte_reader_peek_int16_le (const GstByteReader *reader, gint16 *val);
83 gboolean gst_byte_reader_peek_uint16_be (const GstByteReader *reader, guint16 *val);
84 gboolean gst_byte_reader_peek_int16_be (const GstByteReader *reader, gint16 *val);
85 gboolean gst_byte_reader_peek_uint24_le (const GstByteReader *reader, guint32 *val);
86 gboolean gst_byte_reader_peek_int24_le (const GstByteReader *reader, gint32 *val);
87 gboolean gst_byte_reader_peek_uint24_be (const GstByteReader *reader, guint32 *val);
88 gboolean gst_byte_reader_peek_int24_be (const GstByteReader *reader, gint32 *val);
89 gboolean gst_byte_reader_peek_uint32_le (const GstByteReader *reader, guint32 *val);
90 gboolean gst_byte_reader_peek_int32_le (const GstByteReader *reader, gint32 *val);
91 gboolean gst_byte_reader_peek_uint32_be (const GstByteReader *reader, guint32 *val);
92 gboolean gst_byte_reader_peek_int32_be (const GstByteReader *reader, gint32 *val);
93 gboolean gst_byte_reader_peek_uint64_le (const GstByteReader *reader, guint64 *val);
94 gboolean gst_byte_reader_peek_int64_le (const GstByteReader *reader, gint64 *val);
95 gboolean gst_byte_reader_peek_uint64_be (const GstByteReader *reader, guint64 *val);
96 gboolean gst_byte_reader_peek_int64_be (const GstByteReader *reader, gint64 *val);
98 gboolean gst_byte_reader_get_float32_le (GstByteReader *reader, gfloat *val);
99 gboolean gst_byte_reader_get_float32_be (GstByteReader *reader, gfloat *val);
100 gboolean gst_byte_reader_get_float64_le (GstByteReader *reader, gdouble *val);
101 gboolean gst_byte_reader_get_float64_be (GstByteReader *reader, gdouble *val);
103 gboolean gst_byte_reader_peek_float32_le (const GstByteReader *reader, gfloat *val);
104 gboolean gst_byte_reader_peek_float32_be (const GstByteReader *reader, gfloat *val);
105 gboolean gst_byte_reader_peek_float64_le (const GstByteReader *reader, gdouble *val);
106 gboolean gst_byte_reader_peek_float64_be (const GstByteReader *reader, gdouble *val);
108 gboolean gst_byte_reader_dup_data (GstByteReader * reader, guint size, guint8 ** val);
109 gboolean gst_byte_reader_get_data (GstByteReader * reader, guint size, const guint8 ** val);
110 gboolean gst_byte_reader_peek_data (const GstByteReader * reader, guint size, const guint8 ** val);
112 #define gst_byte_reader_dup_string(reader,str) \
113 gst_byte_reader_dup_string_utf8(reader,str)
115 gboolean gst_byte_reader_dup_string_utf8 (GstByteReader * reader, gchar ** str);
116 gboolean gst_byte_reader_dup_string_utf16 (GstByteReader * reader, guint16 ** str);
117 gboolean gst_byte_reader_dup_string_utf32 (GstByteReader * reader, guint32 ** str);
119 #define gst_byte_reader_skip_string(reader) \
120 gst_byte_reader_skip_string_utf8(reader)
122 gboolean gst_byte_reader_skip_string_utf8 (GstByteReader * reader);
123 gboolean gst_byte_reader_skip_string_utf16 (GstByteReader * reader);
124 gboolean gst_byte_reader_skip_string_utf32 (GstByteReader * reader);
126 #define gst_byte_reader_get_string(reader,str) \
127 gst_byte_reader_get_string_utf8(reader,str)
129 #define gst_byte_reader_peek_string(reader,str) \
130 gst_byte_reader_peek_string_utf8(reader,str)
132 gboolean gst_byte_reader_get_string_utf8 (GstByteReader * reader, const gchar ** str);
133 gboolean gst_byte_reader_peek_string_utf8 (const GstByteReader * reader, const gchar ** str);
135 guint gst_byte_reader_masked_scan_uint32 (const GstByteReader * reader,
142 * GST_BYTE_READER_INIT:
143 * @data: Data from which the #GstByteReader should read
144 * @size: Size of @data in bytes
146 * A #GstByteReader must be initialized with this macro, before it can be
147 * used. This macro can used be to initialize a variable, but it cannot
148 * be assigned to a variable. In that case you have to use
149 * gst_byte_reader_init().
153 #define GST_BYTE_READER_INIT(data, size) {data, size, 0}
155 /* unchecked variants */
157 gst_byte_reader_skip_unchecked (GstByteReader * reader, guint nbytes)
159 reader->byte += nbytes;
162 #define __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(bits,type,lower,upper,adj) \
165 gst_byte_reader_peek_##lower##_unchecked (const GstByteReader * reader) \
167 type val = (type) GST_READ_##upper (reader->data + reader->byte); \
173 gst_byte_reader_get_##lower##_unchecked (GstByteReader * reader) \
175 type val = gst_byte_reader_peek_##lower##_unchecked (reader); \
176 reader->byte += bits / 8; \
180 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,guint8,uint8,UINT8,/* */)
181 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,gint8,int8,UINT8,/* */)
183 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_le,UINT16_LE,/* */)
184 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_be,UINT16_BE,/* */)
185 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_le,UINT16_LE,/* */)
186 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_be,UINT16_BE,/* */)
188 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_le,UINT32_LE,/* */)
189 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_be,UINT32_BE,/* */)
190 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_le,UINT32_LE,/* */)
191 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_be,UINT32_BE,/* */)
193 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_le,UINT24_LE,/* */)
194 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_be,UINT24_BE,/* */)
196 /* fix up the sign for 24-bit signed ints stored in 32-bit signed ints */
197 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_le,UINT24_LE,
198 if (val & 0x00800000) val |= 0xff000000;)
199 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_be,UINT24_BE,
200 if (val & 0x00800000) val |= 0xff000000;)
202 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_le,UINT64_LE,/* */)
203 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_be,UINT64_BE,/* */)
204 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_le,UINT64_LE,/* */)
205 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_be,UINT64_BE,/* */)
207 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_le,FLOAT_LE,/* */)
208 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_be,FLOAT_BE,/* */)
209 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_le,DOUBLE_LE,/* */)
210 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_be,DOUBLE_BE,/* */)
212 #undef __GET_PEEK_BITS_UNCHECKED
214 static inline const guint8 *
215 gst_byte_reader_peek_data_unchecked (const GstByteReader * reader)
217 return (const guint8 *) (reader->data + reader->byte);
220 static inline const guint8 *
221 gst_byte_reader_get_data_unchecked (GstByteReader * reader, guint size)
225 data = gst_byte_reader_peek_data_unchecked (reader);
226 gst_byte_reader_skip_unchecked (reader, size);
230 static inline guint8 *
231 gst_byte_reader_dup_data_unchecked (GstByteReader * reader, guint size)
233 return g_memdup (gst_byte_reader_get_data_unchecked (reader, size), size);
236 /* Unchecked variants that should not be used */
238 _gst_byte_reader_get_pos_unchecked (const GstByteReader * reader)
244 _gst_byte_reader_get_remaining_unchecked (const GstByteReader * reader)
246 return reader->size - reader->byte;
250 _gst_byte_reader_get_size_unchecked (const GstByteReader * reader)
255 /* inlined variants (do not use directly) */
258 _gst_byte_reader_get_remaining_inline (const GstByteReader * reader)
260 g_return_val_if_fail (reader != NULL, 0);
262 return _gst_byte_reader_get_remaining_unchecked (reader);
266 _gst_byte_reader_get_size_inline (const GstByteReader * reader)
268 g_return_val_if_fail (reader != NULL, 0);
270 return _gst_byte_reader_get_size_unchecked (reader);
273 #define __GST_BYTE_READER_GET_PEEK_BITS_INLINE(bits,type,name) \
275 static inline gboolean \
276 _gst_byte_reader_peek_##name##_inline (const GstByteReader * reader, type * val) \
278 g_return_val_if_fail (reader != NULL, FALSE); \
279 g_return_val_if_fail (val != NULL, FALSE); \
281 if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
284 *val = gst_byte_reader_peek_##name##_unchecked (reader); \
288 static inline gboolean \
289 _gst_byte_reader_get_##name##_inline (GstByteReader * reader, type * val) \
291 g_return_val_if_fail (reader != NULL, FALSE); \
292 g_return_val_if_fail (val != NULL, FALSE); \
294 if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
297 *val = gst_byte_reader_get_##name##_unchecked (reader); \
301 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,guint8,uint8)
302 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,gint8,int8)
304 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_le)
305 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_be)
306 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_le)
307 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_be)
309 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_le)
310 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_be)
311 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_le)
312 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_be)
314 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_le)
315 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_be)
316 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_le)
317 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_be)
319 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_le)
320 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_be)
321 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_le)
322 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_be)
324 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_le)
325 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_be)
326 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_le)
327 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_be)
329 #undef __GST_BYTE_READER_GET_PEEK_BITS_INLINE
331 #ifndef GST_BYTE_READER_DISABLE_INLINES
333 #define gst_byte_reader_get_remaining(reader) \
334 _gst_byte_reader_get_remaining_inline(reader)
336 #define gst_byte_reader_get_size(reader) \
337 _gst_byte_reader_get_size_inline(reader)
339 #define gst_byte_reader_get_pos(reader) \
340 _gst_byte_reader_get_pos_inline(reader)
342 /* we use defines here so we can add the G_LIKELY() */
343 #define gst_byte_reader_get_uint8(reader,val) \
344 G_LIKELY(_gst_byte_reader_get_uint8_inline(reader,val))
345 #define gst_byte_reader_get_int8(reader,val) \
346 G_LIKELY(_gst_byte_reader_get_int8_inline(reader,val))
347 #define gst_byte_reader_get_uint16_le(reader,val) \
348 G_LIKELY(_gst_byte_reader_get_uint16_le_inline(reader,val))
349 #define gst_byte_reader_get_int16_le(reader,val) \
350 G_LIKELY(_gst_byte_reader_get_int16_le_inline(reader,val))
351 #define gst_byte_reader_get_uint16_be(reader,val) \
352 G_LIKELY(_gst_byte_reader_get_uint16_be_inline(reader,val))
353 #define gst_byte_reader_get_int16_be(reader,val) \
354 G_LIKELY(_gst_byte_reader_get_int16_be_inline(reader,val))
355 #define gst_byte_reader_get_uint24_le(reader,val) \
356 G_LIKELY(_gst_byte_reader_get_uint24_le_inline(reader,val))
357 #define gst_byte_reader_get_int24_le(reader,val) \
358 G_LIKELY(_gst_byte_reader_get_int24_le_inline(reader,val))
359 #define gst_byte_reader_get_uint24_be(reader,val) \
360 G_LIKELY(_gst_byte_reader_get_uint24_be_inline(reader,val))
361 #define gst_byte_reader_get_int24_be(reader,val) \
362 G_LIKELY(_gst_byte_reader_get_int24_be_inline(reader,val))
363 #define gst_byte_reader_get_uint32_le(reader,val) \
364 G_LIKELY(_gst_byte_reader_get_uint32_le_inline(reader,val))
365 #define gst_byte_reader_get_int32_le(reader,val) \
366 G_LIKELY(_gst_byte_reader_get_int32_le_inline(reader,val))
367 #define gst_byte_reader_get_uint32_be(reader,val) \
368 G_LIKELY(_gst_byte_reader_get_uint32_be_inline(reader,val))
369 #define gst_byte_reader_get_int32_be(reader,val) \
370 G_LIKELY(_gst_byte_reader_get_int32_be_inline(reader,val))
371 #define gst_byte_reader_get_uint64_le(reader,val) \
372 G_LIKELY(_gst_byte_reader_get_uint64_le_inline(reader,val))
373 #define gst_byte_reader_get_int64_le(reader,val) \
374 G_LIKELY(_gst_byte_reader_get_int64_le_inline(reader,val))
375 #define gst_byte_reader_get_uint64_be(reader,val) \
376 G_LIKELY(_gst_byte_reader_get_uint64_be_inline(reader,val))
377 #define gst_byte_reader_get_int64_be(reader,val) \
378 G_LIKELY(_gst_byte_reader_get_int64_be_inline(reader,val))
380 #define gst_byte_reader_peek_uint8(reader,val) \
381 G_LIKELY(_gst_byte_reader_peek_uint8_inline(reader,val))
382 #define gst_byte_reader_peek_int8(reader,val) \
383 G_LIKELY(_gst_byte_reader_peek_int8_inline(reader,val))
384 #define gst_byte_reader_peek_uint16_le(reader,val) \
385 G_LIKELY(_gst_byte_reader_peek_uint16_le_inline(reader,val))
386 #define gst_byte_reader_peek_int16_le(reader,val) \
387 G_LIKELY(_gst_byte_reader_peek_int16_le_inline(reader,val))
388 #define gst_byte_reader_peek_uint16_be(reader,val) \
389 G_LIKELY(_gst_byte_reader_peek_uint16_be_inline(reader,val))
390 #define gst_byte_reader_peek_int16_be(reader,val) \
391 G_LIKELY(_gst_byte_reader_peek_int16_be_inline(reader,val))
392 #define gst_byte_reader_peek_uint24_le(reader,val) \
393 G_LIKELY(_gst_byte_reader_peek_uint24_le_inline(reader,val))
394 #define gst_byte_reader_peek_int24_le(reader,val) \
395 G_LIKELY(_gst_byte_reader_peek_int24_le_inline(reader,val))
396 #define gst_byte_reader_peek_uint24_be(reader,val) \
397 G_LIKELY(_gst_byte_reader_peek_uint24_be_inline(reader,val))
398 #define gst_byte_reader_peek_int24_be(reader,val) \
399 G_LIKELY(_gst_byte_reader_peek_int24_be_inline(reader,val))
400 #define gst_byte_reader_peek_uint32_le(reader,val) \
401 G_LIKELY(_gst_byte_reader_peek_uint32_le_inline(reader,val))
402 #define gst_byte_reader_peek_int32_le(reader,val) \
403 G_LIKELY(_gst_byte_reader_peek_int32_le_inline(reader,val))
404 #define gst_byte_reader_peek_uint32_be(reader,val) \
405 G_LIKELY(_gst_byte_reader_peek_uint32_be_inline(reader,val))
406 #define gst_byte_reader_peek_int32_be(reader,val) \
407 G_LIKELY(_gst_byte_reader_peek_int32_be_inline(reader,val))
408 #define gst_byte_reader_peek_uint64_le(reader,val) \
409 G_LIKELY(_gst_byte_reader_peek_uint64_le_inline(reader,val))
410 #define gst_byte_reader_peek_int64_le(reader,val) \
411 G_LIKELY(_gst_byte_reader_peek_int64_le_inline(reader,val))
412 #define gst_byte_reader_peek_uint64_be(reader,val) \
413 G_LIKELY(_gst_byte_reader_peek_uint64_be_inline(reader,val))
414 #define gst_byte_reader_peek_int64_be(reader,val) \
415 G_LIKELY(_gst_byte_reader_peek_int64_be_inline(reader,val))
417 #define gst_byte_reader_get_float32_le(reader,val) \
418 G_LIKELY(_gst_byte_reader_get_float32_le_inline(reader,val))
419 #define gst_byte_reader_get_float32_be(reader,val) \
420 G_LIKELY(_gst_byte_reader_get_float32_be_inline(reader,val))
421 #define gst_byte_reader_get_float64_le(reader,val) \
422 G_LIKELY(_gst_byte_reader_get_float64_le_inline(reader,val))
423 #define gst_byte_reader_get_float64_be(reader,val) \
424 G_LIKELY(_gst_byte_reader_get_float64_be_inline(reader,val))
425 #define gst_byte_reader_peek_float32_le(reader,val) \
426 G_LIKELY(_gst_byte_reader_peek_float32_le_inline(reader,val))
427 #define gst_byte_reader_peek_float32_be(reader,val) \
428 G_LIKELY(_gst_byte_reader_peek_float32_be_inline(reader,val))
429 #define gst_byte_reader_peek_float64_le(reader,val) \
430 G_LIKELY(_gst_byte_reader_peek_float64_le_inline(reader,val))
431 #define gst_byte_reader_peek_float64_be(reader,val) \
432 G_LIKELY(_gst_byte_reader_peek_float64_be_inline(reader,val))
434 #endif /* GST_BYTE_READER_DISABLE_INLINES */
436 static inline gboolean
437 _gst_byte_reader_dup_data_inline (GstByteReader * reader, guint size, guint8 ** val)
439 g_return_val_if_fail (reader != NULL, FALSE);
440 g_return_val_if_fail (val != NULL, FALSE);
442 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
445 *val = gst_byte_reader_dup_data_unchecked (reader, size);
449 static inline gboolean
450 _gst_byte_reader_get_data_inline (GstByteReader * reader, guint size, const guint8 ** val)
452 g_return_val_if_fail (reader != NULL, FALSE);
453 g_return_val_if_fail (val != NULL, FALSE);
455 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
458 *val = gst_byte_reader_get_data_unchecked (reader, size);
462 static inline gboolean
463 _gst_byte_reader_peek_data_inline (const GstByteReader * reader, guint size, const guint8 ** val)
465 g_return_val_if_fail (reader != NULL, FALSE);
466 g_return_val_if_fail (val != NULL, FALSE);
468 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
471 *val = gst_byte_reader_peek_data_unchecked (reader);
476 _gst_byte_reader_get_pos_inline (const GstByteReader * reader)
478 g_return_val_if_fail (reader != NULL, 0);
480 return _gst_byte_reader_get_pos_unchecked (reader);
483 static inline gboolean
484 _gst_byte_reader_skip_inline (GstByteReader * reader, guint nbytes)
486 g_return_val_if_fail (reader != NULL, FALSE);
488 if (G_UNLIKELY (_gst_byte_reader_get_remaining_unchecked (reader) < nbytes))
491 reader->byte += nbytes;
495 #ifndef GST_BYTE_READER_DISABLE_INLINES
497 #define gst_byte_reader_dup_data(reader,size,val) \
498 G_LIKELY(_gst_byte_reader_dup_data_inline(reader,size,val))
499 #define gst_byte_reader_get_data(reader,size,val) \
500 G_LIKELY(_gst_byte_reader_get_data_inline(reader,size,val))
501 #define gst_byte_reader_peek_data(reader,size,val) \
502 G_LIKELY(_gst_byte_reader_peek_data_inline(reader,size,val))
503 #define gst_byte_reader_skip(reader,nbytes) \
504 G_LIKELY(_gst_byte_reader_skip_inline(reader,nbytes))
506 #endif /* GST_BYTE_READER_DISABLE_INLINES */
510 #endif /* __GST_BYTE_READER_H__ */