FreeCalypso > hg > gsm-codec-lib
comparison libgsmfrp/gsm_fr_preproc.h @ 1:6780b23654bd
libgsmfrp: starting with the silence frame
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 19 Nov 2022 04:04:01 +0000 |
| parents | |
| children | 2b5770c715ee |
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| 0:b45bb0f9bdfc | 1:6780b23654bd |
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| 1 /* | |
| 2 * This header file is the external public interface to libgsmfrp; | |
| 3 * it should be installed in the same system include directory | |
| 4 * as <gsm.h> from libgsm, on which we depend. | |
| 5 */ | |
| 6 | |
| 7 #ifndef __GSM_FR_PREPROC_H | |
| 8 #define __GSM_FR_PREPROC_H | |
| 9 | |
| 10 #include <gsm.h> | |
| 11 | |
| 12 struct gsmfr_preproc_state; /* opaque to external users */ | |
| 13 | |
| 14 extern struct gsmfr_preproc_state *gsmfr_preproc_create(void); | |
| 15 /* use standard free() call to free it afterward */ | |
| 16 | |
| 17 /* reset state to initial */ | |
| 18 extern void gsmfr_preproc_reset(struct gsmfr_preproc_state *state); | |
| 19 | |
| 20 /* main processing functions */ | |
| 21 extern void gsmfr_preproc_good_frame(struct gsmfr_preproc_state *state, | |
| 22 gsm_byte *frame); | |
| 23 extern void gsmfr_preproc_bfi(struct gsmfr_preproc_state *state, int taf, | |
| 24 gsm_byte *frame_out); | |
| 25 | |
| 26 /* utility function */ | |
| 27 extern int gsmfr_preproc_sid_classify(const gsm_frame *frame); | |
| 28 | |
| 29 /* utility datum */ | |
| 30 extern const gsm_frame gsmfr_preproc_silence_frame; | |
| 31 | |
| 32 #endif /* include guard */ |