[FFmpeg-devel] [PATCH] imc: use correct position for flcoeffs2 calculation
Andreas Cadhalpun
andreas.cadhalpun at googlemail.com
Fri Jul 10 21:59:32 CEST 2015
flcoeffs2[pos] should be the log2 of flcoeffs1[pos].
flcoeffs1[0] can be 0 here, thus flcoeffs2[pos] gets set to -inf,
causing problems further down.
This seems to have been copied from imc_decode_level_coefficients in
commit 4eb4bb3 without updating the position.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com>
---
libavcodec/imc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index b062b21..e15ac9c 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -426,7 +426,7 @@ static void imc_decode_level_coefficients_raw(IMCContext *q, int *levlCoeffBuf,
pos = q->coef0_pos;
flcoeffs1[pos] = 20000.0 / pow (2, levlCoeffBuf[0] * 0.18945); // 0.18945 = log2(10) * 0.05703125
- flcoeffs2[pos] = log2f(flcoeffs1[0]);
+ flcoeffs2[pos] = log2f(flcoeffs1[pos]);
tmp = flcoeffs1[pos];
tmp2 = flcoeffs2[pos];
--
2.1.4
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