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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-01-20 17:24:06 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-01-21 20:36:00 +0100 |
| commit | b3b8b930fcff07650315f1cf2e2db7021ecf6025 (patch) | |
| tree | 953f022309e9675b4de6a86230115e176ccb985b /libavcodec/iirfilter.h | |
| parent | 236bb68d76fb28133883b8c8ba8cd23016a8efde (diff) | |
| download | ffmpeg-b3b8b930fcff07650315f1cf2e2db7021ecf6025.tar.gz | |
Add function ff_iir_filter_flt() to accept floating-point input and output.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 0a3d7697b4fcb62305cd4a893b621a406a029ff0)
Diffstat (limited to 'libavcodec/iirfilter.h')
| -rw-r--r-- | libavcodec/iirfilter.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libavcodec/iirfilter.h b/libavcodec/iirfilter.h index f660955403..fd26166862 100644 --- a/libavcodec/iirfilter.h +++ b/libavcodec/iirfilter.h @@ -87,7 +87,7 @@ void ff_iir_filter_free_coeffs(struct FFIIRFilterCoeffs *coeffs); void ff_iir_filter_free_state(struct FFIIRFilterState *state); /** - * Perform lowpass filtering on input samples. + * Perform IIR filtering on signed 16-bit input samples. * * @param coeffs pointer to filter coefficients * @param state pointer to filter state @@ -100,4 +100,19 @@ void ff_iir_filter_free_state(struct FFIIRFilterState *state); void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct FFIIRFilterState *state, int size, const int16_t *src, int sstep, int16_t *dst, int dstep); +/** + * Perform IIR filtering on floating-point input samples. + * + * @param coeffs pointer to filter coefficients + * @param state pointer to filter state + * @param size input length + * @param src source samples + * @param sstep source stride + * @param dst filtered samples (destination may be the same as input) + * @param dstep destination stride + */ +void ff_iir_filter_flt(const struct FFIIRFilterCoeffs *coeffs, + struct FFIIRFilterState *state, int size, + const float *src, int sstep, void *dst, int dstep); + #endif /* AVCODEC_IIRFILTER_H */ |