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 gpointer _gst_reserved[GST_PADDING];
49 GstByteReader * gst_byte_reader_new (const guint8 *data, guint size) G_GNUC_MALLOC;
50 void gst_byte_reader_free (GstByteReader *reader);
52 void gst_byte_reader_init (GstByteReader *reader, const guint8 *data, guint size);
54 gboolean gst_byte_reader_set_pos (GstByteReader *reader, guint pos);
55 guint gst_byte_reader_get_pos (const GstByteReader *reader);
57 guint gst_byte_reader_get_remaining (const GstByteReader *reader);
59 guint gst_byte_reader_get_size (const GstByteReader *reader);
61 gboolean gst_byte_reader_skip (GstByteReader *reader, guint nbytes);
63 gboolean gst_byte_reader_get_uint8 (GstByteReader *reader, guint8 *val);
64 gboolean gst_byte_reader_get_int8 (GstByteReader *reader, gint8 *val);
65 gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader, guint16 *val);
66 gboolean gst_byte_reader_get_int16_le (GstByteReader *reader, gint16 *val);
67 gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader, guint16 *val);
68 gboolean gst_byte_reader_get_int16_be (GstByteReader *reader, gint16 *val);
69 gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader, guint32 *val);
70 gboolean gst_byte_reader_get_int24_le (GstByteReader *reader, gint32 *val);
71 gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader, guint32 *val);
72 gboolean gst_byte_reader_get_int24_be (GstByteReader *reader, gint32 *val);
73 gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader, guint32 *val);
74 gboolean gst_byte_reader_get_int32_le (GstByteReader *reader, gint32 *val);
75 gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader, guint32 *val);
76 gboolean gst_byte_reader_get_int32_be (GstByteReader *reader, gint32 *val);
77 gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader, guint64 *val);
78 gboolean gst_byte_reader_get_int64_le (GstByteReader *reader, gint64 *val);
79 gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader, guint64 *val);
80 gboolean gst_byte_reader_get_int64_be (GstByteReader *reader, gint64 *val);
82 gboolean gst_byte_reader_peek_uint8 (const GstByteReader *reader, guint8 *val);
83 gboolean gst_byte_reader_peek_int8 (const GstByteReader *reader, gint8 *val);
84 gboolean gst_byte_reader_peek_uint16_le (const GstByteReader *reader, guint16 *val);
85 gboolean gst_byte_reader_peek_int16_le (const GstByteReader *reader, gint16 *val);
86 gboolean gst_byte_reader_peek_uint16_be (const GstByteReader *reader, guint16 *val);
87 gboolean gst_byte_reader_peek_int16_be (const GstByteReader *reader, gint16 *val);
88 gboolean gst_byte_reader_peek_uint24_le (const GstByteReader *reader, guint32 *val);
89 gboolean gst_byte_reader_peek_int24_le (const GstByteReader *reader, gint32 *val);
90 gboolean gst_byte_reader_peek_uint24_be (const GstByteReader *reader, guint32 *val);
91 gboolean gst_byte_reader_peek_int24_be (const GstByteReader *reader, gint32 *val);
92 gboolean gst_byte_reader_peek_uint32_le (const GstByteReader *reader, guint32 *val);
93 gboolean gst_byte_reader_peek_int32_le (const GstByteReader *reader, gint32 *val);
94 gboolean gst_byte_reader_peek_uint32_be (const GstByteReader *reader, guint32 *val);
95 gboolean gst_byte_reader_peek_int32_be (const GstByteReader *reader, gint32 *val);
96 gboolean gst_byte_reader_peek_uint64_le (const GstByteReader *reader, guint64 *val);
97 gboolean gst_byte_reader_peek_int64_le (const GstByteReader *reader, gint64 *val);
98 gboolean gst_byte_reader_peek_uint64_be (const GstByteReader *reader, guint64 *val);
99 gboolean gst_byte_reader_peek_int64_be (const GstByteReader *reader, gint64 *val);
101 gboolean gst_byte_reader_get_float32_le (GstByteReader *reader, gfloat *val);
102 gboolean gst_byte_reader_get_float32_be (GstByteReader *reader, gfloat *val);
103 gboolean gst_byte_reader_get_float64_le (GstByteReader *reader, gdouble *val);
104 gboolean gst_byte_reader_get_float64_be (GstByteReader *reader, gdouble *val);
106 gboolean gst_byte_reader_peek_float32_le (const GstByteReader *reader, gfloat *val);
107 gboolean gst_byte_reader_peek_float32_be (const GstByteReader *reader, gfloat *val);
108 gboolean gst_byte_reader_peek_float64_le (const GstByteReader *reader, gdouble *val);
109 gboolean gst_byte_reader_peek_float64_be (const GstByteReader *reader, gdouble *val);
111 gboolean gst_byte_reader_dup_data (GstByteReader * reader, guint size, guint8 ** val);
112 gboolean gst_byte_reader_get_data (GstByteReader * reader, guint size, const guint8 ** val);
113 gboolean gst_byte_reader_peek_data (const GstByteReader * reader, guint size, const guint8 ** val);
115 #define gst_byte_reader_dup_string(reader,str) \
116 gst_byte_reader_dup_string_utf8(reader,str)
118 gboolean gst_byte_reader_dup_string_utf8 (GstByteReader * reader, gchar ** str);
119 gboolean gst_byte_reader_dup_string_utf16 (GstByteReader * reader, guint16 ** str);
120 gboolean gst_byte_reader_dup_string_utf32 (GstByteReader * reader, guint32 ** str);
122 #define gst_byte_reader_skip_string(reader) \
123 gst_byte_reader_skip_string_utf8(reader)
125 gboolean gst_byte_reader_skip_string_utf8 (GstByteReader * reader);
126 gboolean gst_byte_reader_skip_string_utf16 (GstByteReader * reader);
127 gboolean gst_byte_reader_skip_string_utf32 (GstByteReader * reader);
129 #define gst_byte_reader_get_string(reader,str) \
130 gst_byte_reader_get_string_utf8(reader,str)
132 #define gst_byte_reader_peek_string(reader,str) \
133 gst_byte_reader_peek_string_utf8(reader,str)
135 gboolean gst_byte_reader_get_string_utf8 (GstByteReader * reader, const gchar ** str);
136 gboolean gst_byte_reader_peek_string_utf8 (const GstByteReader * reader, const gchar ** str);
138 guint gst_byte_reader_masked_scan_uint32 (const GstByteReader * reader,
145 * GST_BYTE_READER_INIT:
146 * @data: Data from which the #GstByteReader should read
147 * @size: Size of @data in bytes
149 * A #GstByteReader must be initialized with this macro, before it can be
150 * used. This macro can used be to initialize a variable, but it cannot
151 * be assigned to a variable. In that case you have to use
152 * gst_byte_reader_init().
156 #define GST_BYTE_READER_INIT(data, size) {data, size, 0}
158 /* unchecked variants */
160 gst_byte_reader_skip_unchecked (GstByteReader * reader, guint nbytes)
162 reader->byte += nbytes;
165 #define __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(bits,type,lower,upper,adj) \
168 gst_byte_reader_peek_##lower##_unchecked (const GstByteReader * reader) \
170 type val = (type) GST_READ_##upper (reader->data + reader->byte); \
176 gst_byte_reader_get_##lower##_unchecked (GstByteReader * reader) \
178 type val = gst_byte_reader_peek_##lower##_unchecked (reader); \
179 reader->byte += bits / 8; \
183 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,guint8,uint8,UINT8,/* */)
184 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,gint8,int8,UINT8,/* */)
186 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_le,UINT16_LE,/* */)
187 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_be,UINT16_BE,/* */)
188 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_le,UINT16_LE,/* */)
189 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_be,UINT16_BE,/* */)
191 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_le,UINT32_LE,/* */)
192 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_be,UINT32_BE,/* */)
193 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_le,UINT32_LE,/* */)
194 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_be,UINT32_BE,/* */)
196 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_le,UINT24_LE,/* */)
197 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_be,UINT24_BE,/* */)
199 /* fix up the sign for 24-bit signed ints stored in 32-bit signed ints */
200 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_le,UINT24_LE,
201 if (val & 0x00800000) val |= 0xff000000;)
202 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_be,UINT24_BE,
203 if (val & 0x00800000) val |= 0xff000000;)
205 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_le,UINT64_LE,/* */)
206 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_be,UINT64_BE,/* */)
207 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_le,UINT64_LE,/* */)
208 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_be,UINT64_BE,/* */)
210 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_le,FLOAT_LE,/* */)
211 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_be,FLOAT_BE,/* */)
212 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_le,DOUBLE_LE,/* */)
213 __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_be,DOUBLE_BE,/* */)
215 #undef __GET_PEEK_BITS_UNCHECKED
217 static inline const guint8 *
218 gst_byte_reader_peek_data_unchecked (const GstByteReader * reader)
220 return (const guint8 *) (reader->data + reader->byte);
223 static inline const guint8 *
224 gst_byte_reader_get_data_unchecked (GstByteReader * reader, guint size)
228 data = gst_byte_reader_peek_data_unchecked (reader);
229 gst_byte_reader_skip_unchecked (reader, size);
233 static inline guint8 *
234 gst_byte_reader_dup_data_unchecked (GstByteReader * reader, guint size)
236 gconstpointer data = gst_byte_reader_get_data_unchecked (reader, size);
237 return (guint8 *) g_memdup (data, size);
240 /* Unchecked variants that should not be used */
242 _gst_byte_reader_get_pos_unchecked (const GstByteReader * reader)
248 _gst_byte_reader_get_remaining_unchecked (const GstByteReader * reader)
250 return reader->size - reader->byte;
254 _gst_byte_reader_get_size_unchecked (const GstByteReader * reader)
259 /* inlined variants (do not use directly) */
262 _gst_byte_reader_get_remaining_inline (const GstByteReader * reader)
264 g_return_val_if_fail (reader != NULL, 0);
266 return _gst_byte_reader_get_remaining_unchecked (reader);
270 _gst_byte_reader_get_size_inline (const GstByteReader * reader)
272 g_return_val_if_fail (reader != NULL, 0);
274 return _gst_byte_reader_get_size_unchecked (reader);
277 #define __GST_BYTE_READER_GET_PEEK_BITS_INLINE(bits,type,name) \
279 static inline gboolean \
280 _gst_byte_reader_peek_##name##_inline (const GstByteReader * reader, type * val) \
282 g_return_val_if_fail (reader != NULL, FALSE); \
283 g_return_val_if_fail (val != NULL, FALSE); \
285 if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
288 *val = gst_byte_reader_peek_##name##_unchecked (reader); \
292 static inline gboolean \
293 _gst_byte_reader_get_##name##_inline (GstByteReader * reader, type * val) \
295 g_return_val_if_fail (reader != NULL, FALSE); \
296 g_return_val_if_fail (val != NULL, FALSE); \
298 if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
301 *val = gst_byte_reader_get_##name##_unchecked (reader); \
305 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,guint8,uint8)
306 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,gint8,int8)
308 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_le)
309 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_be)
310 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_le)
311 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_be)
313 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_le)
314 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_be)
315 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_le)
316 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_be)
318 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_le)
319 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_be)
320 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_le)
321 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_be)
323 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_le)
324 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_be)
325 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_le)
326 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_be)
328 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_le)
329 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_be)
330 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_le)
331 __GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_be)
333 #undef __GST_BYTE_READER_GET_PEEK_BITS_INLINE
335 #ifndef GST_BYTE_READER_DISABLE_INLINES
337 #define gst_byte_reader_get_remaining(reader) \
338 _gst_byte_reader_get_remaining_inline(reader)
340 #define gst_byte_reader_get_size(reader) \
341 _gst_byte_reader_get_size_inline(reader)
343 #define gst_byte_reader_get_pos(reader) \
344 _gst_byte_reader_get_pos_inline(reader)
346 /* we use defines here so we can add the G_LIKELY() */
347 #define gst_byte_reader_get_uint8(reader,val) \
348 G_LIKELY(_gst_byte_reader_get_uint8_inline(reader,val))
349 #define gst_byte_reader_get_int8(reader,val) \
350 G_LIKELY(_gst_byte_reader_get_int8_inline(reader,val))
351 #define gst_byte_reader_get_uint16_le(reader,val) \
352 G_LIKELY(_gst_byte_reader_get_uint16_le_inline(reader,val))
353 #define gst_byte_reader_get_int16_le(reader,val) \
354 G_LIKELY(_gst_byte_reader_get_int16_le_inline(reader,val))
355 #define gst_byte_reader_get_uint16_be(reader,val) \
356 G_LIKELY(_gst_byte_reader_get_uint16_be_inline(reader,val))
357 #define gst_byte_reader_get_int16_be(reader,val) \
358 G_LIKELY(_gst_byte_reader_get_int16_be_inline(reader,val))
359 #define gst_byte_reader_get_uint24_le(reader,val) \
360 G_LIKELY(_gst_byte_reader_get_uint24_le_inline(reader,val))
361 #define gst_byte_reader_get_int24_le(reader,val) \
362 G_LIKELY(_gst_byte_reader_get_int24_le_inline(reader,val))
363 #define gst_byte_reader_get_uint24_be(reader,val) \
364 G_LIKELY(_gst_byte_reader_get_uint24_be_inline(reader,val))
365 #define gst_byte_reader_get_int24_be(reader,val) \
366 G_LIKELY(_gst_byte_reader_get_int24_be_inline(reader,val))
367 #define gst_byte_reader_get_uint32_le(reader,val) \
368 G_LIKELY(_gst_byte_reader_get_uint32_le_inline(reader,val))
369 #define gst_byte_reader_get_int32_le(reader,val) \
370 G_LIKELY(_gst_byte_reader_get_int32_le_inline(reader,val))
371 #define gst_byte_reader_get_uint32_be(reader,val) \
372 G_LIKELY(_gst_byte_reader_get_uint32_be_inline(reader,val))
373 #define gst_byte_reader_get_int32_be(reader,val) \
374 G_LIKELY(_gst_byte_reader_get_int32_be_inline(reader,val))
375 #define gst_byte_reader_get_uint64_le(reader,val) \
376 G_LIKELY(_gst_byte_reader_get_uint64_le_inline(reader,val))
377 #define gst_byte_reader_get_int64_le(reader,val) \
378 G_LIKELY(_gst_byte_reader_get_int64_le_inline(reader,val))
379 #define gst_byte_reader_get_uint64_be(reader,val) \
380 G_LIKELY(_gst_byte_reader_get_uint64_be_inline(reader,val))
381 #define gst_byte_reader_get_int64_be(reader,val) \
382 G_LIKELY(_gst_byte_reader_get_int64_be_inline(reader,val))
384 #define gst_byte_reader_peek_uint8(reader,val) \
385 G_LIKELY(_gst_byte_reader_peek_uint8_inline(reader,val))
386 #define gst_byte_reader_peek_int8(reader,val) \
387 G_LIKELY(_gst_byte_reader_peek_int8_inline(reader,val))
388 #define gst_byte_reader_peek_uint16_le(reader,val) \
389 G_LIKELY(_gst_byte_reader_peek_uint16_le_inline(reader,val))
390 #define gst_byte_reader_peek_int16_le(reader,val) \
391 G_LIKELY(_gst_byte_reader_peek_int16_le_inline(reader,val))
392 #define gst_byte_reader_peek_uint16_be(reader,val) \
393 G_LIKELY(_gst_byte_reader_peek_uint16_be_inline(reader,val))
394 #define gst_byte_reader_peek_int16_be(reader,val) \
395 G_LIKELY(_gst_byte_reader_peek_int16_be_inline(reader,val))
396 #define gst_byte_reader_peek_uint24_le(reader,val) \
397 G_LIKELY(_gst_byte_reader_peek_uint24_le_inline(reader,val))
398 #define gst_byte_reader_peek_int24_le(reader,val) \
399 G_LIKELY(_gst_byte_reader_peek_int24_le_inline(reader,val))
400 #define gst_byte_reader_peek_uint24_be(reader,val) \
401 G_LIKELY(_gst_byte_reader_peek_uint24_be_inline(reader,val))
402 #define gst_byte_reader_peek_int24_be(reader,val) \
403 G_LIKELY(_gst_byte_reader_peek_int24_be_inline(reader,val))
404 #define gst_byte_reader_peek_uint32_le(reader,val) \
405 G_LIKELY(_gst_byte_reader_peek_uint32_le_inline(reader,val))
406 #define gst_byte_reader_peek_int32_le(reader,val) \
407 G_LIKELY(_gst_byte_reader_peek_int32_le_inline(reader,val))
408 #define gst_byte_reader_peek_uint32_be(reader,val) \
409 G_LIKELY(_gst_byte_reader_peek_uint32_be_inline(reader,val))
410 #define gst_byte_reader_peek_int32_be(reader,val) \
411 G_LIKELY(_gst_byte_reader_peek_int32_be_inline(reader,val))
412 #define gst_byte_reader_peek_uint64_le(reader,val) \
413 G_LIKELY(_gst_byte_reader_peek_uint64_le_inline(reader,val))
414 #define gst_byte_reader_peek_int64_le(reader,val) \
415 G_LIKELY(_gst_byte_reader_peek_int64_le_inline(reader,val))
416 #define gst_byte_reader_peek_uint64_be(reader,val) \
417 G_LIKELY(_gst_byte_reader_peek_uint64_be_inline(reader,val))
418 #define gst_byte_reader_peek_int64_be(reader,val) \
419 G_LIKELY(_gst_byte_reader_peek_int64_be_inline(reader,val))
421 #define gst_byte_reader_get_float32_le(reader,val) \
422 G_LIKELY(_gst_byte_reader_get_float32_le_inline(reader,val))
423 #define gst_byte_reader_get_float32_be(reader,val) \
424 G_LIKELY(_gst_byte_reader_get_float32_be_inline(reader,val))
425 #define gst_byte_reader_get_float64_le(reader,val) \
426 G_LIKELY(_gst_byte_reader_get_float64_le_inline(reader,val))
427 #define gst_byte_reader_get_float64_be(reader,val) \
428 G_LIKELY(_gst_byte_reader_get_float64_be_inline(reader,val))
429 #define gst_byte_reader_peek_float32_le(reader,val) \
430 G_LIKELY(_gst_byte_reader_peek_float32_le_inline(reader,val))
431 #define gst_byte_reader_peek_float32_be(reader,val) \
432 G_LIKELY(_gst_byte_reader_peek_float32_be_inline(reader,val))
433 #define gst_byte_reader_peek_float64_le(reader,val) \
434 G_LIKELY(_gst_byte_reader_peek_float64_le_inline(reader,val))
435 #define gst_byte_reader_peek_float64_be(reader,val) \
436 G_LIKELY(_gst_byte_reader_peek_float64_be_inline(reader,val))
438 #endif /* GST_BYTE_READER_DISABLE_INLINES */
440 static inline gboolean
441 _gst_byte_reader_dup_data_inline (GstByteReader * reader, guint size, guint8 ** val)
443 g_return_val_if_fail (reader != NULL, FALSE);
444 g_return_val_if_fail (val != NULL, FALSE);
446 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
449 *val = gst_byte_reader_dup_data_unchecked (reader, size);
453 static inline gboolean
454 _gst_byte_reader_get_data_inline (GstByteReader * reader, guint size, const guint8 ** val)
456 g_return_val_if_fail (reader != NULL, FALSE);
457 g_return_val_if_fail (val != NULL, FALSE);
459 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
462 *val = gst_byte_reader_get_data_unchecked (reader, size);
466 static inline gboolean
467 _gst_byte_reader_peek_data_inline (const GstByteReader * reader, guint size, const guint8 ** val)
469 g_return_val_if_fail (reader != NULL, FALSE);
470 g_return_val_if_fail (val != NULL, FALSE);
472 if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_inline (reader) < size))
475 *val = gst_byte_reader_peek_data_unchecked (reader);
480 _gst_byte_reader_get_pos_inline (const GstByteReader * reader)
482 g_return_val_if_fail (reader != NULL, 0);
484 return _gst_byte_reader_get_pos_unchecked (reader);
487 static inline gboolean
488 _gst_byte_reader_skip_inline (GstByteReader * reader, guint nbytes)
490 g_return_val_if_fail (reader != NULL, FALSE);
492 if (G_UNLIKELY (_gst_byte_reader_get_remaining_unchecked (reader) < nbytes))
495 reader->byte += nbytes;
499 #ifndef GST_BYTE_READER_DISABLE_INLINES
501 #define gst_byte_reader_dup_data(reader,size,val) \
502 G_LIKELY(_gst_byte_reader_dup_data_inline(reader,size,val))
503 #define gst_byte_reader_get_data(reader,size,val) \
504 G_LIKELY(_gst_byte_reader_get_data_inline(reader,size,val))
505 #define gst_byte_reader_peek_data(reader,size,val) \
506 G_LIKELY(_gst_byte_reader_peek_data_inline(reader,size,val))
507 #define gst_byte_reader_skip(reader,nbytes) \
508 G_LIKELY(_gst_byte_reader_skip_inline(reader,nbytes))
510 #endif /* GST_BYTE_READER_DISABLE_INLINES */
514 #endif /* __GST_BYTE_READER_H__ */