libspandsp 0.0.4
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Go to the source code of this file.
Classes | |
struct | g722_encode_state_t |
struct | 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 (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 (g722_decode_state_t *s, int16_t amp[], const uint8_t g722_data[], int len) |
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_t::bits_per_sample, g722_decode_state_t::eight_k, g722_decode_state_t::itu_test_mode, g722_decode_state_t::packed, and g722_decode_state_t::x.
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_t::bits_per_sample, g722_decode_state_t::eight_k, and g722_decode_state_t::packed.
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_t::bits_per_sample, g722_encode_state_t::eight_k, g722_encode_state_t::itu_test_mode, g722_encode_state_t::packed, and g722_encode_state_t::x.
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_t::bits_per_sample, g722_encode_state_t::eight_k, and g722_encode_state_t::packed.