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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-26 17:10:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-16 19:17:57 +0200 |
| commit | 4f4ca675e59795c743ab1d0ec9b4f3ece883f650 (patch) | |
| tree | 52870f1ae23a705f1290c194f7278e0feae753dd | |
| parent | e831f60100a06ea01865aa0d9d7566b930a7ce62 (diff) | |
| download | ffmpeg-4f4ca675e59795c743ab1d0ec9b4f3ece883f650.tar.gz | |
swscale/output: Implement Luma computation from yuv2ya16_X_c_template() without 64bit
This also reverts 21838cad2fc44023ad85e35d5c677e2f8d29a0ef
The revert is in this commit to avoid 2 fate updates
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libswscale/output.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libswscale/output.c b/libswscale/output.c index 0e20a0a6b8..60a9bdfe82 100644 --- a/libswscale/output.c +++ b/libswscale/output.c @@ -904,13 +904,14 @@ yuv2ya16_X_c_template(SwsContext *c, const int16_t *lumFilter, for (i = 0; i < dstW; i++) { int j; - int64_t Y = 1 << 18; + int Y = -0x40000000; int64_t A = 0xffff<<14; for (j = 0; j < lumFilterSize; j++) Y += lumSrc[j][i] * lumFilter[j]; Y >>= 15; + Y += (1<<3) + 0x8000; Y = av_clip_uint16(Y); if (hasAlpha) { |