spandsp 0.0.6
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Typedefs | |
typedef struct g722_encode_state_s | g722_encode_state_t |
typedef struct g722_decode_state_s | g722_decode_state_t |
Enumerations | |
enum | { G722_SAMPLE_RATE_8000 = 0x0001 , G722_PACKED = 0x0002 } |
Functions | |
g722_encode_state_t * | g722_encode_init (g722_encode_state_t *s, int rate, int options) |
int | g722_encode_release (g722_encode_state_t *s) |
int | g722_encode_free (g722_encode_state_t *s) |
int | g722_encode (g722_encode_state_t *s, uint8_t g722_data[], const int16_t amp[], int len) |
g722_decode_state_t * | g722_decode_init (g722_decode_state_t *s, int rate, int options) |
int | g722_decode_release (g722_decode_state_t *s) |
int | g722_decode_free (g722_decode_state_t *s) |
int | g722_decode (g722_decode_state_t *s, int16_t amp[], const uint8_t g722_data[], int len) |
typedef struct g722_decode_state_s g722_decode_state_t |
G.722 decode state
typedef struct g722_encode_state_s g722_encode_state_t |
G.722 encode state
int g722_decode | ( | g722_decode_state_t * | s, |
int16_t | amp[], | ||
const uint8_t | g722_data[], | ||
int | len ) |
Decode a buffer of G.722 data to linear PCM.
s | The G.722 context. |
amp | The audio sample buffer. |
g722_data | |
len |
References g722_decode_state_s::bits_per_sample, g722_decode_state_s::eight_k, g722_decode_state_s::itu_test_mode, g722_decode_state_s::packed, and g722_decode_state_s::x.
int g722_decode_free | ( | g722_decode_state_t * | s | ) |
Free a G.722 decode context.
s | The G.722 decode context. |
g722_decode_state_t * g722_decode_init | ( | g722_decode_state_t * | s, |
int | rate, | ||
int | options ) |
Initialise an G.722 decode context.
s | The G.722 decode context. |
rate | The bit rate of the G.722 data. The valid rates are 64000, 56000 and 48000. |
options |
References g722_decode_state_s::bits_per_sample, g722_decode_state_s::eight_k, and g722_decode_state_s::packed.
int g722_decode_release | ( | g722_decode_state_t * | s | ) |
Release a G.722 decode context.
s | The G.722 decode context. |
int g722_encode | ( | g722_encode_state_t * | s, |
uint8_t | g722_data[], | ||
const int16_t | amp[], | ||
int | len ) |
Encode a buffer of linear PCM data to G.722
s | The G.722 context. |
g722_data | The G.722 data produced. |
amp | The audio sample buffer. |
len | The number of samples in the buffer. |
References g722_encode_state_s::bits_per_sample, g722_encode_state_s::eight_k, g722_encode_state_s::itu_test_mode, g722_encode_state_s::packed, and g722_encode_state_s::x.
int g722_encode_free | ( | g722_encode_state_t * | s | ) |
Free a G.722 encode context.
s | The G.722 encode context. |
g722_encode_state_t * g722_encode_init | ( | g722_encode_state_t * | s, |
int | rate, | ||
int | options ) |
Initialise an G.722 encode context.
s | The G.722 encode context. |
rate | The required bit rate for the G.722 data. The valid rates are 64000, 56000 and 48000. |
options |
References g722_encode_state_s::bits_per_sample, g722_encode_state_s::eight_k, and g722_encode_state_s::packed.
int g722_encode_release | ( | g722_encode_state_t * | s | ) |
Release a G.722 encode context.
s | The G.722 encode context. |