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speex_bits.h File Reference

Handles bit packing/unpacking. More...

Go to the source code of this file.

Data Structures
struct	SpeexBits
	Bit-packing data structure representing (part of) a bit-stream. More...
Typedefs
typedef struct SpeexBits	SpeexBits
	Bit-packing data structure representing (part of) a bit-stream.
Functions
void	speex_bits_init (SpeexBits *bits)
	Initializes and allocates resources for a SpeexBits struct.
void	speex_bits_init_buffer (SpeexBits bits, void buff, int buf_size)
	Initializes SpeexBits struct using a pre-allocated buffer.
void	speex_bits_set_bit_buffer (SpeexBits bits, void buff, int buf_size)
	Sets the bits in a SpeexBits struct to use data from an existing buffer (for decoding without copying data)
void	speex_bits_destroy (SpeexBits *bits)
	Frees all resources associated to a SpeexBits struct.
void	speex_bits_reset (SpeexBits *bits)
	Resets bits to initial value (just after initialization, erasing content)
void	speex_bits_rewind (SpeexBits *bits)
	Rewind the bit-stream to the beginning (ready for read) without erasing the content.
void	speex_bits_read_from (SpeexBits bits, char bytes, int len)
	Initializes the bit-stream from the data in an area of memory.
void	speex_bits_read_whole_bytes (SpeexBits bits, char bytes, int len)
	Append bytes to the bit-stream.
int	speex_bits_write (SpeexBits bits, char bytes, int max_len)
	Write the content of a bit-stream to an area of memory.
int	speex_bits_write_whole_bytes (SpeexBits bits, char bytes, int max_len)
	Like speex_bits_write, but writes only the complete bytes in the stream.
void	speex_bits_pack (SpeexBits *bits, int data, int nbBits)
	Append bits to the bit-stream.
int	speex_bits_unpack_signed (SpeexBits *bits, int nbBits)
	Interpret the next bits in the bit-stream as a signed integer.
unsigned int	speex_bits_unpack_unsigned (SpeexBits *bits, int nbBits)
	Interpret the next bits in the bit-stream as an unsigned integer.
int	speex_bits_nbytes (SpeexBits *bits)
	Returns the number of bytes in the bit-stream, including the last one even if it is not "full".
unsigned int	speex_bits_peek_unsigned (SpeexBits *bits, int nbBits)
	Same as speex_bits_unpack_unsigned, but without modifying the cursor position.
int	speex_bits_peek (SpeexBits *bits)
	Get the value of the next bit in the stream, without modifying the "cursor" position.
void	speex_bits_advance (SpeexBits *bits, int n)
	Advances the position of the "bit cursor" in the stream.
int	speex_bits_remaining (SpeexBits *bits)
	Returns the number of bits remaining to be read in a stream.
void	speex_bits_insert_terminator (SpeexBits *bits)
	Insert a terminator so that the data can be sent as a packet while auto-detecting the number of frames in each packet.