diff options
Diffstat (limited to 'libavcodec/acelp_filters.h')
| -rw-r--r-- | libavcodec/acelp_filters.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libavcodec/acelp_filters.h b/libavcodec/acelp_filters.h index 2cbe9bb17d..c5be5a6cb1 100644 --- a/libavcodec/acelp_filters.h +++ b/libavcodec/acelp_filters.h @@ -56,6 +56,14 @@ void ff_acelp_interpolate(int16_t* out, const int16_t* in, int frac_pos, int filter_length, int length); /** + * Floating point version of ff_acelp_interpolate() + */ +void ff_acelp_interpolatef(float *out, const float *in, + const float *filter_coeffs, int precision, + int frac_pos, int filter_length, int length); + + +/** * high-pass filtering and upscaling (4.2.5 of G.729). * @param out [out] output buffer for filtered speech data * @param hpf_f [in/out] past filtered data from previous (2 items long) @@ -97,4 +105,15 @@ void ff_acelp_apply_order_2_transfer_function(float *samples, float gain, float mem[2], int n); +/** + * Apply tilt compensation filter, 1 - tilt * z-1. + * + * @param mem pointer to the filter's state (one single float) + * @param tilt tilt factor + * @param samples array where the filter is applied + * @param size the size of the samples array + */ +void ff_tilt_compensation(float *mem, float tilt, float *samples, int size); + + #endif /* AVCODEC_ACELP_FILTERS_H */ |