This avoids some invalid shifts
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/truespeech.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/libavcodec/truespeech.c b/libavcodec/truespeech.c
index d4ddfcbf9c..54352851b3 100644
--- a/libavcodec/truespeech.c
+++ b/libavcodec/truespeech.c
@@ -132,8 +132,7 @@ static void truespeech_correlate_filter(TSContext *dec)
if(i > 0){
memcpy(tmp, dec->cvector, i * sizeof(*tmp));
for(j = 0; j < i; j++)
- dec->cvector[j] = ((tmp[i - j - 1] * dec->vector[i]) +
- (dec->cvector[j] << 15) + 0x4000) >> 15;
+ dec->cvector[j] += (tmp[i - j - 1] * dec->vector[i] + 0x4000)
>> 15;
}
dec->cvector[i] = (8 - dec->vector[i]) >> 3;
}
@@ -256,7 +255,7 @@ static void truespeech_synth(TSContext *dec, int16_t *out,
int quart)
int sum = 0;
for(k = 0; k < 8; k++)
sum += ptr0[k] * ptr1[k];
- sum = (sum + (out[i] << 12) + 0x800) >> 12;
+ sum = out[i] + ((sum + 0x800) >> 12);
out[i] = av_clip(sum, -0x7FFE, 0x7FFE);
for(k = 7; k > 0; k--)
ptr0[k] = ptr0[k - 1];
@@ -274,7 +273,7 @@ static void truespeech_synth(TSContext *dec, int16_t *out,
int quart)
for(k = 7; k > 0; k--)
ptr0[k] = ptr0[k - 1];
ptr0[0] = out[i];
- out[i] = ((out[i] << 12) - sum) >> 12;
+ out[i] += (- sum) >> 12;
}
for(i = 0; i < 8; i++)
--
2.23.0
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