From: Michael Niedermayer <[email protected]>
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/jpeg2000.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c
index 0519275..1bb7776 100644
--- a/libavcodec/jpeg2000.c
+++ b/libavcodec/jpeg2000.c
@@ -285,12 +285,12 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
int numbps;
case JPEG2000_QSTY_NONE:
/* TODO: to verify. No quantization in this case */
- band->f_stepsize = (float) (1 << 13);
+ band->f_stepsize = 1;
break;
case JPEG2000_QSTY_SI:
/*TODO: Compute formula to implement. */
numbps = cbps +
- lut_gain[codsty->transform][bandno + (reslevelno >
0)];
+ lut_gain[codsty->transform == FF_DWT53][bandno +
(reslevelno > 0)];
band->f_stepsize = (float)SHL(2048 + qntsty->mant[gbandno],
2 + numbps -
qntsty->expn[gbandno]);
break;
--
1.8.2.1
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