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Classes | |
struct | oki_adpcm_state_t |
Functions | |
oki_adpcm_state_t * | oki_adpcm_init (oki_adpcm_state_t *s, int bit_rate) |
int | oki_adpcm_release (oki_adpcm_state_t *s) |
int | oki_adpcm_decode (oki_adpcm_state_t *s, int16_t amp[], const uint8_t oki_data[], int oki_bytes) |
int | oki_adpcm_encode (oki_adpcm_state_t *s, uint8_t oki_data[], const int16_t amp[], int len) |
int oki_adpcm_decode | ( | oki_adpcm_state_t * | s, | |
int16_t | amp[], | |||
const uint8_t | oki_data[], | |||
int | oki_bytes | |||
) |
Decode a buffer of Oki ADPCM data to linear PCM.
s | The Oki ADPCM context. | |
amp | The audio sample buffer. | |
oki_data | ||
oki_bytes |
References oki_adpcm_state_t::bit_rate, oki_adpcm_state_t::history, oki_adpcm_state_t::phase, and oki_adpcm_state_t::ptr.
int oki_adpcm_encode | ( | oki_adpcm_state_t * | s, | |
uint8_t | oki_data[], | |||
const int16_t | amp[], | |||
int | len | |||
) |
Encode a buffer of linear PCM data to Oki ADPCM.
s | The Oki ADPCM context. | |
oki_data | The Oki ADPCM data produced | |
amp | The audio sample buffer. | |
len | The number of samples in the buffer. |
References oki_adpcm_state_t::bit_rate, oki_adpcm_state_t::history, oki_adpcm_state_t::mark, oki_adpcm_state_t::oki_byte, oki_adpcm_state_t::phase, and oki_adpcm_state_t::ptr.
oki_adpcm_state_t* oki_adpcm_init | ( | oki_adpcm_state_t * | s, | |
int | bit_rate | |||
) |
Initialise an Oki ADPCM encode or decode context.
s | The Oki ADPCM context. | |
bit_rate | The required bit rate for the ADPCM data. The valid rates are 24000 and 32000. |
References oki_adpcm_state_t::bit_rate.
int oki_adpcm_release | ( | oki_adpcm_state_t * | s | ) |
Free an Oki ADPCM encode or decode context.
s | The Oki ADPCM context. |