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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-11-09 23:53:43 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-11-10 00:33:12 +0100 |
| commit | 873d06c76ea5379076a90329b234e77b54525263 (patch) | |
| tree | b082b9fca7a70da5d6579fe9e43ac8ef5bb8d501 /libswscale/output.c | |
| parent | a340cfef8259e6fdceb8b3560a3f5c6cc73423f7 (diff) | |
| download | ffmpeg-streaming-873d06c76ea5379076a90329b234e77b54525263.zip ffmpeg-streaming-873d06c76ea5379076a90329b234e77b54525263.tar.gz | |
swscale/output: Fix alpha shift in yuv2gbrp_full_X_c()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libswscale/output.c')
| -rw-r--r-- | libswscale/output.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/libswscale/output.c b/libswscale/output.c index ea1ee54..a05fed8 100644 --- a/libswscale/output.c +++ b/libswscale/output.c @@ -1979,10 +1979,8 @@ yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter, for (j = 0; j < lumFilterSize; j++) A += alpSrc[j][i] * lumFilter[j]; - A >>= 19; - - if (A & 0x100) - A = av_clip_uint8(A); + if (A & 0xF8000000) + A = av_clip_uintp2(A, 27); } Y -= c->yuv2rgb_y_offset; @@ -2003,13 +2001,13 @@ yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter, dest16[1][i] = B >> SH; dest16[2][i] = R >> SH; if (hasAlpha) - dest16[3][i] = A; + dest16[3][i] = A >> (SH - 3); } else { dest[0][i] = G >> 22; dest[1][i] = B >> 22; dest[2][i] = R >> 22; if (hasAlpha) - dest[3][i] = A; + dest[3][i] = A >> 19; } } if (SH != 22 && (!isBE(c->dstFormat)) != (!HAVE_BIGENDIAN)) { |
