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authorMichael Niedermayer <michael@niedermayer.cc>2018-10-31 10:19:43 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2018-11-04 20:26:49 +0100
commit2f04b78b95464c46468c1d8c252f2360ffe7c183 (patch)
tree78e0bf578058dea8e20d6ddab03b2fc1871d0526
parentfd05e20650a50f3cd2b660367d0e73cb8fef9a07 (diff)
downloadffmpeg-2f04b78b95464c46468c1d8c252f2360ffe7c183.tar.gz
avcodec/prosumer: Simplify bit juggling of the c variable in decompress()
Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 66425add270cd262a22c0fdaf6aad09a0db6f8c0) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/prosumer.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/libavcodec/prosumer.c b/libavcodec/prosumer.c
index 3125636cf1..505de71980 100644
--- a/libavcodec/prosumer.c
+++ b/libavcodec/prosumer.c
@@ -69,15 +69,13 @@ static int decompress(GetByteContext *gb, int size, PutByteContext *pb, const ui
}
c = b >> 16;
if (c & 0xFF00u) {
- c = (((c >> 8) & 0xFFu) | (c & 0xFF00)) & 0xF00F;
fill = lut[2 * idx + 1];
- if ((c & 0xFF00u) == 0x1000) {
+ if ((c & 0xF000u) == 0x1000) {
bytestream2_put_le16(pb, fill);
- c &= 0xFFFF00FFu;
} else {
bytestream2_put_le32(pb, fill);
- c &= 0xFFFF00FFu;
}
+ c = (c >> 8) & 0x0Fu;
}
while (c) {
a <<= 4;