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| author | Ganesh Ajjanagadde <gajjanagadde@gmail.com> | 2015-09-19 13:10:44 -0400 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-09-20 01:14:36 +0200 |
| commit | 7cf22c79706d23d40d16cee37eb32d5797adcc2c (patch) | |
| tree | 6f623aea82c6d6d3715a558e9be1c764f2f05371 /libswscale/output.c | |
| parent | 094a1985d618e29283b435ec2f9ebca38fc03e09 (diff) | |
| download | ffmpeg-7cf22c79706d23d40d16cee37eb32d5797adcc2c.tar.gz | |
swscale/output: fix undefined left shifts of negative numbers
This fixes -Wshift-negative-value reported with clang 3.7+, e.g
http://fate.ffmpeg.org/log.cgi?time=20150918181527&log=compile&slot=x86_64-darwin-clang-polly-vectorize-stripmine-3.7.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libswscale/output.c')
| -rw-r--r-- | libswscale/output.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/libswscale/output.c b/libswscale/output.c index 3188baadf9..4b70626b83 100644 --- a/libswscale/output.c +++ b/libswscale/output.c @@ -693,8 +693,8 @@ yuv2rgba64_X_c_template(SwsContext *c, const int16_t *lumFilter, int j; int Y1 = -0x40000000; int Y2 = -0x40000000; - int U = -128 << 23; // 19 - int V = -128 << 23; + int U = -(128 << 23); // 19 + int V = -(128 << 23); int R, G, B; for (j = 0; j < lumFilterSize; j++) { @@ -780,8 +780,8 @@ yuv2rgba64_2_c_template(SwsContext *c, const int32_t *buf[2], for (i = 0; i < ((dstW + 1) >> 1); i++) { int Y1 = (buf0[i * 2] * yalpha1 + buf1[i * 2] * yalpha) >> 14; int Y2 = (buf0[i * 2 + 1] * yalpha1 + buf1[i * 2 + 1] * yalpha) >> 14; - int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha + (-128 << 23)) >> 14; - int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha + (-128 << 23)) >> 14; + int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha - (128 << 23)) >> 14; + int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha - (128 << 23)) >> 14; int R, G, B; Y1 -= c->yuv2rgb_y_offset; @@ -836,8 +836,8 @@ yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0, for (i = 0; i < ((dstW + 1) >> 1); i++) { int Y1 = (buf0[i * 2] ) >> 2; int Y2 = (buf0[i * 2 + 1]) >> 2; - int U = (ubuf0[i] + (-128 << 11)) >> 2; - int V = (vbuf0[i] + (-128 << 11)) >> 2; + int U = (ubuf0[i] - (128 << 11)) >> 2; + int V = (vbuf0[i] - (128 << 11)) >> 2; int R, G, B; Y1 -= c->yuv2rgb_y_offset; @@ -882,8 +882,8 @@ yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0, for (i = 0; i < ((dstW + 1) >> 1); i++) { int Y1 = (buf0[i * 2] ) >> 2; int Y2 = (buf0[i * 2 + 1]) >> 2; - int U = (ubuf0[i] + ubuf1[i] + (-128 << 12)) >> 3; - int V = (vbuf0[i] + vbuf1[i] + (-128 << 12)) >> 3; + int U = (ubuf0[i] + ubuf1[i] - (128 << 12)) >> 3; + int V = (vbuf0[i] + vbuf1[i] - (128 << 12)) >> 3; int R, G, B; Y1 -= c->yuv2rgb_y_offset; @@ -939,8 +939,8 @@ yuv2rgba64_full_X_c_template(SwsContext *c, const int16_t *lumFilter, for (i = 0; i < dstW; i++) { int j; int Y = -0x40000000; - int U = -128 << 23; // 19 - int V = -128 << 23; + int U = -(128 << 23); // 19 + int V = -(128 << 23); int R, G, B; for (j = 0; j < lumFilterSize; j++) { @@ -1008,8 +1008,8 @@ yuv2rgba64_full_2_c_template(SwsContext *c, const int32_t *buf[2], for (i = 0; i < dstW; i++) { int Y = (buf0[i] * yalpha1 + buf1[i] * yalpha) >> 14; - int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha + (-128 << 23)) >> 14; - int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha + (-128 << 23)) >> 14; + int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha - (128 << 23)) >> 14; + int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha - (128 << 23)) >> 14; int R, G, B; Y -= c->yuv2rgb_y_offset; @@ -1051,8 +1051,8 @@ yuv2rgba64_full_1_c_template(SwsContext *c, const int32_t *buf0, if (uvalpha < 2048) { for (i = 0; i < dstW; i++) { int Y = (buf0[i]) >> 2; - int U = (ubuf0[i] + (-128 << 11)) >> 2; - int V = (vbuf0[i] + (-128 << 11)) >> 2; + int U = (ubuf0[i] - (128 << 11)) >> 2; + int V = (vbuf0[i] - (128 << 11)) >> 2; int R, G, B; Y -= c->yuv2rgb_y_offset; @@ -1084,8 +1084,8 @@ yuv2rgba64_full_1_c_template(SwsContext *c, const int32_t *buf0, int A = 0xffff<<14; for (i = 0; i < dstW; i++) { int Y = (buf0[i] ) >> 2; - int U = (ubuf0[i] + ubuf1[i] + (-128 << 12)) >> 3; - int V = (vbuf0[i] + vbuf1[i] + (-128 << 12)) >> 3; + int U = (ubuf0[i] + ubuf1[i] - (128 << 12)) >> 3; + int V = (vbuf0[i] + vbuf1[i] - (128 << 12)) >> 3; int R, G, B; Y -= c->yuv2rgb_y_offset; |