FreeCalypso > hg > gsm-codec-lib
view libgsmefr/gsm_efr.h @ 30:2272ba6f6879
libgsmefr: beginning with API definition
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 23 Nov 2022 07:54:04 +0000 |
parents | libgsmfrp/gsm_fr_preproc.h@2b5770c715ee |
children | 88468d5b3590 |
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/* * This header file is the external public interface to libgsmefr; * it should be installed in the same system include directory * as <gsm.h> and <gsm_fr_preproc.h> for the older FR codec. */ #ifndef __GSM_EFR_H #define __GSM_EFR_H #include <stdint.h> struct EFR_encoder_state; /* opaque to external users */ struct EFR_decoder_state; /* ditto */ extern struct EFR_encoder_state *EFR_encoder_create(int dtx); extern struct EFR_decoder_state *EFR_decoder_create(void); /* use standard free() call to free both afterward */ /* reset state to initial */ extern void EFR_encoder_reset(struct EFR_encoder_state *st, int dtx); extern void EFR_decoder_reset(struct EFR_decoder_state *st); /* encoder public functions */ extern void EFR_encode_params(struct EFR_encoder_state *st, const int16_t *pcm, int16_t *params, int *sp, int *vad); extern void EFR_encode_frame(struct EFR_encoder_state *st, const int16_t *pcm, uint8_t *frame, int *sp, int *vad); /* decoder public functions */ extern void EFR_decode_params(struct EFR_decoder_state *st, const int16_t *params, int bfi, int sid, int taf, int16_t *pcm); extern void EFR_decode_frame(struct EFR_decoder_state *st, const uint8_t *frame, int bfi, int taf, int16_t *pcm); extern void EFR_decode_bfi_nodata(struct EFR_decoder_state *st, int taf, int16_t *pcm); /* stateless utility functions */ extern int EFR_sid_classify(const uint8_t *frame); extern void EFR_frame2params(const uint8_t *frame, int16_t *params); extern void EFR_params2frame(const int16_t *params, int sid, uint8_t *frame); #endif /* include guard */