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GstByteReaderGstByteReader — Reads different integer, string and floating point types from a memory buffer |
Functions
Description
GstByteReader provides a byte reader that can read different integer and floating point types from a memory buffer. It provides functions for reading signed/unsigned, little/big endian integers of 8, 16, 24, 32 and 64 bits and functions for reading little/big endian floating points numbers of 32 and 64 bits. It also provides functions to read NUL-terminated strings in various character encodings.
Functions
GST_BYTE_READER_INIT()
#define GST_BYTE_READER_INIT(data, size) {data, size, 0}
A GstByteReader must be initialized with this macro, before it can be
used. This macro can used be to initialize a variable, but it cannot
be assigned to a variable. In that case you have to use
gst_byte_reader_init()
.
gst_byte_reader_new ()
GstByteReader * gst_byte_reader_new (const guint8 *data
,guint size
);
Create a new GstByteReader instance, which will read from data
.
Free-function: gst_byte_reader_free
[skip]
Parameters
data |
data from which the GstByteReader should read. |
[in][transfer none][array length=size] |
size |
Size of |
gst_byte_reader_free ()
void
gst_byte_reader_free (GstByteReader *reader
);
Frees a GstByteReader instance, which was previously allocated by
gst_byte_reader_new()
.
gst_byte_reader_init ()
void gst_byte_reader_init (GstByteReader *reader
,const guint8 *data
,guint size
);
Initializes a GstByteReader instance to read from data
. This function
can be called on already initialized instances.
Parameters
reader |
a GstByteReader instance |
|
data |
data from which the GstByteReader should read. |
[in][transfer none][array length=size] |
size |
Size of |
gst_byte_reader_peek_sub_reader ()
gboolean gst_byte_reader_peek_sub_reader (GstByteReader *reader
,GstByteReader *sub_reader
,guint size
);
Initializes a GstByteReader sub-reader instance to contain size
bytes of
data from the current position of reader
. This is useful to read chunked
formats and make sure that one doesn't read beyond the size of the sub-chunk.
Unlike gst_byte_reader_get_sub_reader()
, this function does not modify the
current position of reader
.
[skip]
Parameters
reader |
an existing and initialized GstByteReader instance |
|
sub_reader |
a GstByteReader instance to initialize as sub-reader |
|
size |
size of |
Returns
FALSE on error or if reader
does not contain size
more bytes from
the current position, and otherwise TRUE
Since: 1.6
gst_byte_reader_get_sub_reader ()
gboolean gst_byte_reader_get_sub_reader (GstByteReader *reader
,GstByteReader *sub_reader
,guint size
);
Initializes a GstByteReader sub-reader instance to contain size
bytes of
data from the current position of reader
. This is useful to read chunked
formats and make sure that one doesn't read beyond the size of the sub-chunk.
Unlike gst_byte_reader_peek_sub_reader()
, this function also modifies the
position of reader
and moves it forward by size
bytes.
[skip]
Parameters
reader |
an existing and initialized GstByteReader instance |
|
sub_reader |
a GstByteReader instance to initialize as sub-reader |
|
size |
size of |
Returns
FALSE on error or if reader
does not contain size
more bytes from
the current position, and otherwise TRUE
Since: 1.6
gst_byte_reader_get_pos ()
guint
gst_byte_reader_get_pos (const GstByteReader *reader
);
Returns the current position of a GstByteReader instance in bytes.
gst_byte_reader_get_remaining ()
guint
gst_byte_reader_get_remaining (const GstByteReader *reader
);
Returns the remaining number of bytes of a GstByteReader instance.
gst_byte_reader_set_pos ()
gboolean gst_byte_reader_set_pos (GstByteReader *reader
,guint pos
);
Sets the new position of a GstByteReader instance to pos
in bytes.
gst_byte_reader_get_size ()
guint
gst_byte_reader_get_size (const GstByteReader *reader
);
Returns the total number of bytes of a GstByteReader instance.
gst_byte_reader_skip ()
gboolean gst_byte_reader_skip (GstByteReader *reader
,guint nbytes
);
Skips nbytes
bytes of the GstByteReader instance.
gst_byte_reader_get_int8 ()
gboolean gst_byte_reader_get_int8 (GstByteReader *reader
,gint8 *val
);
Read a signed 8 bit integer into val
and update the current position.
gst_byte_reader_get_int16_be ()
gboolean gst_byte_reader_get_int16_be (GstByteReader *reader
,gint16 *val
);
Read a signed 16 bit big endian integer into val
and update the current position.
gst_byte_reader_get_int16_le ()
gboolean gst_byte_reader_get_int16_le (GstByteReader *reader
,gint16 *val
);
Read a signed 16 bit little endian integer into val
and update the current position.
gst_byte_reader_get_int24_be ()
gboolean gst_byte_reader_get_int24_be (GstByteReader *reader
,gint32 *val
);
Read a signed 24 bit big endian integer into val
and update the current position.
gst_byte_reader_get_int24_le ()
gboolean gst_byte_reader_get_int24_le (GstByteReader *reader
,gint32 *val
);
Read a signed 24 bit little endian integer into val
and update the current position.
gst_byte_reader_get_int32_be ()
gboolean gst_byte_reader_get_int32_be (GstByteReader *reader
,gint32 *val
);
Read a signed 32 bit big endian integer into val
and update the current position.
gst_byte_reader_get_int32_le ()
gboolean gst_byte_reader_get_int32_le (GstByteReader *reader
,gint32 *val
);
Read a signed 32 bit little endian integer into val
and update the current position.
gst_byte_reader_get_int64_be ()
gboolean gst_byte_reader_get_int64_be (GstByteReader *reader
,gint64 *val
);
Read a signed 64 bit big endian integer into val
and update the current position.
gst_byte_reader_get_int64_le ()
gboolean gst_byte_reader_get_int64_le (GstByteReader *reader
,gint64 *val
);
Read a signed 64 bit little endian integer into val
and update the current position.
gst_byte_reader_get_uint8 ()
gboolean gst_byte_reader_get_uint8 (GstByteReader *reader
,guint8 *val
);
Read an unsigned 8 bit integer into val
and update the current position.
gst_byte_reader_get_uint16_be ()
gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader
,guint16 *val
);
Read an unsigned 16 bit big endian integer into val
and update the current position.
gst_byte_reader_get_uint16_le ()
gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader
,guint16 *val
);
Read an unsigned 16 bit little endian integer into val
and update the current position.
gst_byte_reader_get_uint24_be ()
gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader
,guint32 *val
);
Read an unsigned 24 bit big endian integer into val
and update the current position.
gst_byte_reader_get_uint24_le ()
gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader
,guint32 *val
);
Read an unsigned 24 bit little endian integer into val
and update the current position.
gst_byte_reader_get_uint32_be ()
gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader
,guint32 *val
);
Read an unsigned 32 bit big endian integer into val
and update the current position.
gst_byte_reader_get_uint32_le ()
gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader
,guint32 *val
);
Read an unsigned 32 bit little endian integer into val
and update the current position.
gst_byte_reader_get_uint64_be ()
gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader
,guint64 *val
);
Read an unsigned 64 bit big endian integer into val
and update the current position.
gst_byte_reader_get_uint64_le ()
gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader
,guint64 *val
);
Read an unsigned 64 bit little endian integer into val
and update the current position.
gst_byte_reader_peek_int8 ()
gboolean gst_byte_reader_peek_int8 (const GstByteReader *reader
,gint8 *val
);
Read a signed 8 bit integer into val
but keep the current position.
gst_byte_reader_peek_int16_be ()
gboolean gst_byte_reader_peek_int16_be (const GstByteReader *reader
,gint16 *val
);
Read a signed 16 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_int16_le ()
gboolean gst_byte_reader_peek_int16_le (const GstByteReader *reader
,gint16 *val
);
Read a signed 16 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_int24_be ()
gboolean gst_byte_reader_peek_int24_be (const GstByteReader *reader
,gint32 *val
);
Read a signed 24 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_int24_le ()
gboolean gst_byte_reader_peek_int24_le (const GstByteReader *reader
,gint32 *val
);
Read a signed 24 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_int32_be ()
gboolean gst_byte_reader_peek_int32_be (const GstByteReader *reader
,gint32 *val
);
Read a signed 32 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_int32_le ()
gboolean gst_byte_reader_peek_int32_le (const GstByteReader *reader
,gint32 *val
);
Read a signed 32 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_int64_be ()
gboolean gst_byte_reader_peek_int64_be (const GstByteReader *reader
,gint64 *val
);
Read a signed 64 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_int64_le ()
gboolean gst_byte_reader_peek_int64_le (const GstByteReader *reader
,gint64 *val
);
Read a signed 64 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_uint8 ()
gboolean gst_byte_reader_peek_uint8 (const GstByteReader *reader
,guint8 *val
);
Read an unsigned 8 bit integer into val
but keep the current position.
gst_byte_reader_peek_uint16_be ()
gboolean gst_byte_reader_peek_uint16_be (const GstByteReader *reader
,guint16 *val
);
Read an unsigned 16 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_uint16_le ()
gboolean gst_byte_reader_peek_uint16_le (const GstByteReader *reader
,guint16 *val
);
Read an unsigned 16 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_uint24_be ()
gboolean gst_byte_reader_peek_uint24_be (const GstByteReader *reader
,guint32 *val
);
Read an unsigned 24 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_uint24_le ()
gboolean gst_byte_reader_peek_uint24_le (const GstByteReader *reader
,guint32 *val
);
Read an unsigned 24 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_uint32_be ()
gboolean gst_byte_reader_peek_uint32_be (const GstByteReader *reader
,guint32 *val
);
Read an unsigned 32 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_uint32_le ()
gboolean gst_byte_reader_peek_uint32_le (const GstByteReader *reader
,guint32 *val
);
Read an unsigned 32 bit little endian integer into val
but keep the current position.
gst_byte_reader_peek_uint64_be ()
gboolean gst_byte_reader_peek_uint64_be (const GstByteReader *reader
,guint64 *val
);
Read an unsigned 64 bit big endian integer into val
but keep the current position.
gst_byte_reader_peek_uint64_le ()
gboolean gst_byte_reader_peek_uint64_le (const GstByteReader *reader
,guint64 *val
);
Read an unsigned 64 bit little endian integer into val
but keep the current position.
gst_byte_reader_get_float32_le ()
gboolean gst_byte_reader_get_float32_le (GstByteReader *reader
,gfloat *val
);
Read a 32 bit little endian floating point value into val
and update the current position.
gst_byte_reader_get_float32_be ()
gboolean gst_byte_reader_get_float32_be (GstByteReader *reader
,gfloat *val
);
Read a 32 bit big endian floating point value into val
and update the current position.
gst_byte_reader_get_float64_le ()
gboolean gst_byte_reader_get_float64_le (GstByteReader *reader
,gdouble *val
);
Read a 64 bit little endian floating point value into val
and update the current position.
gst_byte_reader_get_float64_be ()
gboolean gst_byte_reader_get_float64_be (GstByteReader *reader
,gdouble *val
);
Read a 64 bit big endian floating point value into val
and update the current position.
gst_byte_reader_peek_float32_le ()
gboolean gst_byte_reader_peek_float32_le (const GstByteReader *reader
,gfloat *val
);
Read a 32 bit little endian floating point value into val
but keep the current position.
gst_byte_reader_peek_float32_be ()
gboolean gst_byte_reader_peek_float32_be (const GstByteReader *reader
,gfloat *val
);
Read a 32 bit big endian floating point value into val
but keep the current position.
gst_byte_reader_peek_float64_le ()
gboolean gst_byte_reader_peek_float64_le (const GstByteReader *reader
,gdouble *val
);
Read a 64 bit little endian floating point value into val
but keep the current position.
gst_byte_reader_peek_float64_be ()
gboolean gst_byte_reader_peek_float64_be (const GstByteReader *reader
,gdouble *val
);
Read a 64 bit big endian floating point value into val
but keep the current position.
gst_byte_reader_get_data ()
gboolean gst_byte_reader_get_data (GstByteReader *reader
,guint size
,const guint8 **val
);
Returns a constant pointer to the current data
position if at least size
bytes are left and
updates the current position.
Parameters
reader |
a GstByteReader instance |
|
size |
Size in bytes |
|
val |
address of a guint8 pointer variable in which to store the result. |
[out][transfer none][array length=size] |
gst_byte_reader_dup_data ()
gboolean gst_byte_reader_dup_data (GstByteReader *reader
,guint size
,guint8 **val
);
Free-function: g_free
Returns a newly-allocated copy of the current data
position if at least size
bytes are left and
updates the current position. Free with g_free()
when no longer needed.
Parameters
reader |
a GstByteReader instance |
|
size |
Size in bytes |
|
val |
address of a guint8 pointer variable in which to store the result. |
[out][transfer full][array length=size] |
gst_byte_reader_peek_data ()
gboolean gst_byte_reader_peek_data (const GstByteReader *reader
,guint size
,const guint8 **val
);
Returns a constant pointer to the current data
position if at least size
bytes are left and
keeps the current position.
Parameters
reader |
a GstByteReader instance |
|
size |
Size in bytes |
|
val |
address of a guint8 pointer variable in which to store the result. |
[out][transfer none][array length=size] |
gst_byte_reader_masked_scan_uint32 ()
guint gst_byte_reader_masked_scan_uint32 (const GstByteReader *reader
,guint32 mask
,guint32 pattern
,guint offset
,guint size
);
Scan for pattern pattern
with applied mask mask
in the byte reader data,
starting from offset offset
relative to the current position.
The bytes in pattern
and mask
are interpreted left-to-right, regardless
of endianness. All four bytes of the pattern must be present in the
byte reader data for it to match, even if the first or last bytes are masked
out.
It is an error to call this function without making sure that there is enough data (offset+size bytes) in the byte reader.
Parameters
reader |
||
mask |
mask to apply to data before matching against |
|
pattern |
pattern to match (after mask is applied) |
|
offset |
offset from which to start scanning, relative to the current position |
|
size |
number of bytes to scan from offset |
Returns
offset of the first match, or -1 if no match was found.
Example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
// Assume the reader contains 0x00 0x01 0x02 ... 0xfe 0xff gst_byte_reader_masked_scan_uint32 (reader, 0xffffffff, 0x00010203, 0, 256); // -> returns 0 gst_byte_reader_masked_scan_uint32 (reader, 0xffffffff, 0x00010203, 1, 255); // -> returns -1 gst_byte_reader_masked_scan_uint32 (reader, 0xffffffff, 0x01020304, 1, 255); // -> returns 1 gst_byte_reader_masked_scan_uint32 (reader, 0xffff, 0x0001, 0, 256); // -> returns -1 gst_byte_reader_masked_scan_uint32 (reader, 0xffff, 0x0203, 0, 256); // -> returns 0 gst_byte_reader_masked_scan_uint32 (reader, 0xffff0000, 0x02030000, 0, 256); // -> returns 2 gst_byte_reader_masked_scan_uint32 (reader, 0xffff0000, 0x02030000, 0, 4); // -> returns -1 |
gst_byte_reader_masked_scan_uint32_peek ()
guint gst_byte_reader_masked_scan_uint32_peek (const GstByteReader *reader
,guint32 mask
,guint32 pattern
,guint offset
,guint size
,guint32 *value
);
Scan for pattern pattern
with applied mask mask
in the byte reader data,
starting from offset offset
relative to the current position.
The bytes in pattern
and mask
are interpreted left-to-right, regardless
of endianness. All four bytes of the pattern must be present in the
byte reader data for it to match, even if the first or last bytes are masked
out.
It is an error to call this function without making sure that there is enough data (offset+size bytes) in the byte reader.
Parameters
reader |
||
mask |
mask to apply to data before matching against |
|
pattern |
pattern to match (after mask is applied) |
|
offset |
offset from which to start scanning, relative to the current position |
|
size |
number of bytes to scan from offset |
|
value |
pointer to uint32 to return matching data |
Since: 1.6
gst_byte_reader_get_string_utf8 ()
gboolean gst_byte_reader_get_string_utf8 (GstByteReader *reader
,const gchar **str
);
Returns a constant pointer to the current data position if there is a NUL-terminated string in the data (this could be just a NUL terminator), advancing the current position to the byte after the string. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc.
No input checking for valid UTF-8 is done.
This function will fail if no NUL-terminator was found in in the data.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a gchar pointer variable in which to store the result. |
[out][transfer none][array zero-terminated=1] |
gst_byte_reader_peek_string()
#define gst_byte_reader_peek_string(reader,str)
Returns a constant pointer to the current data position if there is a NUL-terminated string in the data (this could be just a NUL terminator). The current position will be maintained. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc.
This function will fail if no NUL-terminator was found in in the data.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a gchar pointer variable in which to store the result. |
[out][transfer none][array zero-terminated=1] |
gst_byte_reader_peek_string_utf8 ()
gboolean gst_byte_reader_peek_string_utf8 (const GstByteReader *reader
,const gchar **str
);
Returns a constant pointer to the current data position if there is a NUL-terminated string in the data (this could be just a NUL terminator). The current position will be maintained. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc.
No input checking for valid UTF-8 is done.
This function will fail if no NUL-terminator was found in in the data.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a gchar pointer variable in which to store the result. |
[out][transfer none][array zero-terminated=1] |
gst_byte_reader_dup_string_utf8 ()
gboolean gst_byte_reader_dup_string_utf8 (GstByteReader *reader
,gchar **str
);
Free-function: g_free
FIXME:Reads (copies) a NUL-terminated string in the GstByteReader instance, advancing the current position to the byte after the string. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc. No input checking for valid UTF-8 is done.
This function will fail if no NUL-terminator was found in in the data.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a gchar pointer variable in which to store the result. |
[out][transfer full][array zero-terminated=1] |
gst_byte_reader_dup_string_utf16 ()
gboolean gst_byte_reader_dup_string_utf16 (GstByteReader *reader
,guint16 **str
);
Free-function: g_free
Returns a newly-allocated copy of the current data position if there is a NUL-terminated UTF-16 string in the data (this could be an empty string as well), and advances the current position.
No input checking for valid UTF-16 is done. This function is endianness agnostic - you should not assume the UTF-16 characters are in host endianness.
This function will fail if no NUL-terminator was found in in the data.
Note: there is no peek or get variant of this function to ensure correct byte alignment of the UTF-16 string.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a guint16 pointer variable in which to store the result. |
[out][transfer full][array zero-terminated=1] |
gst_byte_reader_dup_string_utf32 ()
gboolean gst_byte_reader_dup_string_utf32 (GstByteReader *reader
,guint32 **str
);
Free-function: g_free
Returns a newly-allocated copy of the current data position if there is a NUL-terminated UTF-32 string in the data (this could be an empty string as well), and advances the current position.
No input checking for valid UTF-32 is done. This function is endianness agnostic - you should not assume the UTF-32 characters are in host endianness.
This function will fail if no NUL-terminator was found in in the data.
Note: there is no peek or get variant of this function to ensure correct byte alignment of the UTF-32 string.
Parameters
reader |
a GstByteReader instance |
|
str |
address of a guint32 pointer variable in which to store the result. |
[out][transfer full][array zero-terminated=1] |
gst_byte_reader_skip_string()
#define gst_byte_reader_skip_string(reader)
Skips a NUL-terminated string in the GstByteReader instance, advancing the current position to the byte after the string. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc.
This function will fail if no NUL-terminator was found in in the data.
gst_byte_reader_skip_string_utf8 ()
gboolean
gst_byte_reader_skip_string_utf8 (GstByteReader *reader
);
Skips a NUL-terminated string in the GstByteReader instance, advancing the current position to the byte after the string. This will work for any NUL-terminated string with a character width of 8 bits, so ASCII, UTF-8, ISO-8859-N etc. No input checking for valid UTF-8 is done.
This function will fail if no NUL-terminator was found in in the data.
gst_byte_reader_skip_string_utf16 ()
gboolean
gst_byte_reader_skip_string_utf16 (GstByteReader *reader
);
Skips a NUL-terminated UTF-16 string in the GstByteReader instance, advancing the current position to the byte after the string.
No input checking for valid UTF-16 is done.
This function will fail if no NUL-terminator was found in in the data.
gst_byte_reader_skip_string_utf32 ()
gboolean
gst_byte_reader_skip_string_utf32 (GstByteReader *reader
);
Skips a NUL-terminated UTF-32 string in the GstByteReader instance, advancing the current position to the byte after the string.
No input checking for valid UTF-32 is done.
This function will fail if no NUL-terminator was found in in the data.
gst_byte_reader_skip_unchecked ()
void gst_byte_reader_skip_unchecked (GstByteReader *reader
,guint nbytes
);
Skips nbytes
bytes of the GstByteReader instance without checking if
there are enough bytes available in the byte reader.
gst_byte_reader_get_int8_unchecked ()
gint8
gst_byte_reader_get_int8_unchecked (GstByteReader *reader
);
Read an signed 8 bit integer without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int16_be_unchecked ()
gint16
gst_byte_reader_get_int16_be_unchecked
(GstByteReader *reader
);
Read a signed 16 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int16_le_unchecked ()
gint16
gst_byte_reader_get_int16_le_unchecked
(GstByteReader *reader
);
Read a signed 16 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int24_be_unchecked ()
gint32
gst_byte_reader_get_int24_be_unchecked
(GstByteReader *reader
);
Read a signed 24 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int24_le_unchecked ()
gint32
gst_byte_reader_get_int24_le_unchecked
(GstByteReader *reader
);
Read a signed 24 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int32_be_unchecked ()
gint32
gst_byte_reader_get_int32_be_unchecked
(GstByteReader *reader
);
Read a signed 32 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int32_le_unchecked ()
gint32
gst_byte_reader_get_int32_le_unchecked
(GstByteReader *reader
);
Read a signed 32 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int64_be_unchecked ()
gint64
gst_byte_reader_get_int64_be_unchecked
(GstByteReader *reader
);
Read a signed 64 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_int64_le_unchecked ()
gint64
gst_byte_reader_get_int64_le_unchecked
(GstByteReader *reader
);
Read a signed 64 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint8_unchecked ()
guint8
gst_byte_reader_get_uint8_unchecked (GstByteReader *reader
);
Read an unsigned 8 bit integer without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint16_be_unchecked ()
guint16
gst_byte_reader_get_uint16_be_unchecked
(GstByteReader *reader
);
Read an unsigned 16 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint16_le_unchecked ()
guint16
gst_byte_reader_get_uint16_le_unchecked
(GstByteReader *reader
);
Read an unsigned 16 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint24_be_unchecked ()
guint32
gst_byte_reader_get_uint24_be_unchecked
(GstByteReader *reader
);
Read an unsigned 24 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint24_le_unchecked ()
guint32
gst_byte_reader_get_uint24_le_unchecked
(GstByteReader *reader
);
Read an unsigned 24 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint32_be_unchecked ()
guint32
gst_byte_reader_get_uint32_be_unchecked
(GstByteReader *reader
);
Read an unsigned 32 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint32_le_unchecked ()
guint32
gst_byte_reader_get_uint32_le_unchecked
(GstByteReader *reader
);
Read an unsigned 32 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint64_be_unchecked ()
guint64
gst_byte_reader_get_uint64_be_unchecked
(GstByteReader *reader
);
Read an unsigned 64 bit integer in big endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_get_uint64_le_unchecked ()
guint64
gst_byte_reader_get_uint64_le_unchecked
(GstByteReader *reader
);
Read an unsigned 64 bit integer in little endian format without checking if there are enough bytes available in the byte reader and update the current position.
gst_byte_reader_peek_int8_unchecked ()
gint8
gst_byte_reader_peek_int8_unchecked (GstByteReader *reader
);
Read an signed 8 bit integer without checking if there are enough bytes available in the byte reader, but do not advance the current read position.
gst_byte_reader_peek_int16_be_unchecked ()
gint16
gst_byte_reader_peek_int16_be_unchecked
(GstByteReader *reader
);
Read a signed 16 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int16_le_unchecked ()
gint16
gst_byte_reader_peek_int16_le_unchecked
(GstByteReader *reader
);
Read a signed 16 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int24_be_unchecked ()
gint32
gst_byte_reader_peek_int24_be_unchecked
(GstByteReader *reader
);
Read a signed 24 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int24_le_unchecked ()
gint32
gst_byte_reader_peek_int24_le_unchecked
(GstByteReader *reader
);
Read a signed 24 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int32_be_unchecked ()
gint32
gst_byte_reader_peek_int32_be_unchecked
(GstByteReader *reader
);
Read a signed 32 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int32_le_unchecked ()
gint32
gst_byte_reader_peek_int32_le_unchecked
(GstByteReader *reader
);
Read a signed 32 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int64_be_unchecked ()
gint64
gst_byte_reader_peek_int64_be_unchecked
(GstByteReader *reader
);
Read a signed 64 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_int64_le_unchecked ()
gint64
gst_byte_reader_peek_int64_le_unchecked
(GstByteReader *reader
);
Read a signed 64 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint8_unchecked ()
guint8
gst_byte_reader_peek_uint8_unchecked (GstByteReader *reader
);
Read an unsigned 8 bit integer without checking if there are enough bytes available in the byte reader, but do not advance the current read position.
gst_byte_reader_peek_uint16_be_unchecked ()
guint16
gst_byte_reader_peek_uint16_be_unchecked
(GstByteReader *reader
);
Read an unsigned 16 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint16_le_unchecked ()
guint16
gst_byte_reader_peek_uint16_le_unchecked
(GstByteReader *reader
);
Read an unsigned 16 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint24_be_unchecked ()
guint32
gst_byte_reader_peek_uint24_be_unchecked
(GstByteReader *reader
);
Read an unsigned 24 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint24_le_unchecked ()
guint32
gst_byte_reader_peek_uint24_le_unchecked
(GstByteReader *reader
);
Read an unsigned 24 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint32_be_unchecked ()
guint32
gst_byte_reader_peek_uint32_be_unchecked
(GstByteReader *reader
);
Read an unsigned 32 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint32_le_unchecked ()
guint32
gst_byte_reader_peek_uint32_le_unchecked
(GstByteReader *reader
);
Read an unsigned 32 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint64_be_unchecked ()
guint64
gst_byte_reader_peek_uint64_be_unchecked
(GstByteReader *reader
);
Read an unsigned 64 bit integer in big endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_peek_uint64_le_unchecked ()
guint64
gst_byte_reader_peek_uint64_le_unchecked
(GstByteReader *reader
);
Read an unsigned 64 bit integer in little endian format without checking if there are enough bytes available in the byte reader, but do not advance the current position.
gst_byte_reader_get_float32_le_unchecked ()
gfloat
gst_byte_reader_get_float32_le_unchecked
(GstByteReader *reader
);
Read a 32 bit little endian float without checking if there is enough data available and update the current position.
gst_byte_reader_get_float32_be_unchecked ()
gfloat
gst_byte_reader_get_float32_be_unchecked
(GstByteReader *reader
);
Read a 32 bit big endian float without checking if there is enough data available and update the current position.
gst_byte_reader_get_float64_le_unchecked ()
gdouble
gst_byte_reader_get_float64_le_unchecked
(GstByteReader *reader
);
Read a 64 bit little endian float without checking if there is enough data available and update the current position.
gst_byte_reader_get_float64_be_unchecked ()
gdouble
gst_byte_reader_get_float64_be_unchecked
(GstByteReader *reader
);
Read a 64 bit big endian float without checking if there is enough data available and update the current position.
gst_byte_reader_peek_float32_le_unchecked ()
gfloat
gst_byte_reader_peek_float32_le_unchecked
(GstByteReader *reader
);
Read a 32 bit little endian float without checking if there is enough data available, but keep the current position.
gst_byte_reader_peek_float32_be_unchecked ()
gfloat
gst_byte_reader_peek_float32_be_unchecked
(GstByteReader *reader
);
Read a 32 bit big endian float without checking if there is enough data available, but keep the current position.
gst_byte_reader_peek_float64_le_unchecked ()
gdouble
gst_byte_reader_peek_float64_le_unchecked
(GstByteReader *reader
);
Read a 64 bit little endian float without checking if there is enough data available, but keep the current position.
gst_byte_reader_peek_float64_be_unchecked ()
gdouble
gst_byte_reader_peek_float64_be_unchecked
(GstByteReader *reader
);
Read a 64 bit big endian float without checking if there is enough data available, but keep the current position.
gst_byte_reader_dup_data_unchecked ()
guint8 * gst_byte_reader_dup_data_unchecked (GstByteReader *reader
,guint size
);
Returns a newly-allocated copy of the data at the current data position
without checking if at least size
bytes are left. Advances the current read
position by size
bytes.
Free-function: g_free
Returns
a newly-allocated copy of the
data size
bytes in size. Free with g_free()
when no longer needed.
[transfer full][array length=size]
gst_byte_reader_get_data_unchecked ()
const guint8 * gst_byte_reader_get_data_unchecked (GstByteReader *reader
,guint size
);
Returns a constant pointer to the current data position without checking
if at least size
bytes are left. Advances the current read position by
size
bytes.
gst_byte_reader_peek_data_unchecked ()
const guint8 *
gst_byte_reader_peek_data_unchecked (const GstByteReader *reader
);