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audioquantize: fix 8-pole noise shaping

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Fix the 8-pole noise shaping error update. We were mixing errors from
different channels.
This commit is contained in:
Wim Taymans 2015-10-28 11:32:57 +01:00
parent 36b80edb72
commit 8d4cd51e59
1 changed files with 3 additions and 3 deletions
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6
gst/audioconvert/gstaudioquantize.c
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@ -286,14 +286,14 @@ static const gdouble ns_high_coeffs[] = {
#define ADD_NS_HIGH() \
cur_error = 0.0; \
for (j = 0; j < 8; j++) \
cur_error += errors[chan_pos + j] * ns_high_coeffs[j]; \
cur_error += errors[chan_pos*8 + j] * ns_high_coeffs[j]; \
tmp -= cur_error; \
orig = tmp;
#define UPDATE_ERROR_HIGH() \
for (j = 7; j > 0; j--) \
errors[chan_pos + j] = errors[chan_pos + j-1]; \
errors[chan_pos] = (d)/factor - orig;
errors[chan_pos*8 + j] = errors[chan_pos*8 + j-1]; \
errors[chan_pos*8] = (d)/factor - orig;
MAKE_QUANTIZE_FUNC_I (int_none_none, NONE_FUNC, NONE_FUNC, ROUND);