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| author | Peter Meerwald <pmeerw@pmeerw.net> | 2015-02-15 12:21:21 +0100 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2015-02-15 22:47:10 +0200 |
| commit | 67690683130faf37dd9d969ced15eba2a1940ade (patch) | |
| tree | 5ec3655cec9624bfd4cb1438fc152de935e34318 /libavcodec/g722.c | |
| parent | 4abfa387b8234736f6e0e541951e3d5eb60eb843 (diff) | |
| download | ffmpeg-streaming-67690683130faf37dd9d969ced15eba2a1940ade.zip ffmpeg-streaming-67690683130faf37dd9d969ced15eba2a1940ade.tar.gz | |
g722: Split out g722_qmf_apply() function into g722dsp.c
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/g722.c')
| -rw-r--r-- | libavcodec/g722.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/libavcodec/g722.c b/libavcodec/g722.c index a911bc7..74c0868 100644 --- a/libavcodec/g722.c +++ b/libavcodec/g722.c @@ -72,16 +72,6 @@ const int16_t ff_g722_low_inv_quant6[64] = { }; /** - * quadrature mirror filter (QMF) coefficients - * - * ITU-T G.722 Table 11 - */ -static const int16_t qmf_coeffs[12] = { - 3, -11, 12, 32, -210, 951, 3876, -805, 362, -156, 53, -11, -}; - - -/** * adaptive predictor * * @param cur_diff the dequantized and scaled delta calculated from the @@ -157,15 +147,3 @@ void ff_g722_update_high_predictor(struct G722Band *band, const int dhigh, high_log_factor_step[ihigh&1], 0, 22528); band->scale_factor = linear_scale_factor(band->log_factor - (10 << 11)); } - -void ff_g722_apply_qmf(const int16_t *prev_samples, int *xout1, int *xout2) -{ - int i; - - *xout1 = 0; - *xout2 = 0; - for (i = 0; i < 12; i++) { - MAC16(*xout2, prev_samples[2*i ], qmf_coeffs[i ]); - MAC16(*xout1, prev_samples[2*i+1], qmf_coeffs[11-i]); - } -} |
