Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/pgxdec.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/libavcodec/pgxdec.c b/libavcodec/pgxdec.c
index 30895b51ee..29de103167 100644
--- a/libavcodec/pgxdec.c
+++ b/libavcodec/pgxdec.c
@@ -95,16 +95,13 @@ error:
static inline void write_frame_ ##D(AVFrame *frame, GetByteContext *g, \
int width, int height, int sign, int
depth) \
{
\
+ const unsigned offset = sign ? (1 << (D - 1)) : 0;
\
int i, j;
\
for (i = 0; i < height; i++) {
\
PIXEL *line = (PIXEL*)(frame->data[0] + i * frame->linesize[0]);
\
for (j = 0; j < width; j++) {
\
- unsigned val;
\
- if (sign)
\
- val = (PIXEL)bytestream2_get_ ##suffix##u(g) + (1 <<
(depth - 1)); \
- else
\
- val = bytestream2_get_ ##suffix##u(g);
\
- val <<= (D - depth);
\
+ unsigned val = bytestream2_get_ ##suffix##u(g) << (D - depth);
\
+ val ^= offset;
\
*(line + j) = val;
\
}
\
}
\
--
2.32.0
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