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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-05-15 18:59:59 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-05-18 01:20:30 +0200 |
| commit | 5918b7ac4116a8d579269f0186f8dc78ed34d6df (patch) | |
| tree | c599cf9c6ccd9b562782e6e853e0c5945c9920f9 /libswscale/output.c | |
| parent | 6c593f1b671b7725b8c36f92f7c0a23ccf8e7628 (diff) | |
| download | ffmpeg-5918b7ac4116a8d579269f0186f8dc78ed34d6df.tar.gz | |
sws/output: init A1/A2 so that rgba64 ends with 0xffff in the absence of alpha input
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswscale/output.c')
| -rw-r--r-- | libswscale/output.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libswscale/output.c b/libswscale/output.c index 9c7284befe..c9af23b67e 100644 --- a/libswscale/output.c +++ b/libswscale/output.c @@ -682,9 +682,10 @@ yuv2rgba64_X_c_template(SwsContext *c, const int16_t *lumFilter, int y, enum AVPixelFormat target, int hasAlpha) { int i; + int A1 = 0xffff<<14, A2 = 0xffff<<14; for (i = 0; i < ((dstW + 1) >> 1); i++) { - int j, A1 = 0, A2 = 0; + int j; int Y1 = -0x40000000; int Y2 = -0x40000000; int U = -128 << 23; // 19 @@ -762,7 +763,7 @@ yuv2rgba64_2_c_template(SwsContext *c, const int32_t *buf[2], int yalpha1 = 4096 - yalpha; int uvalpha1 = 4096 - uvalpha; int i; - int A1 = 0, A2 = 0; // Init to avoid compiler warnings + int A1 = 0xffff<<14, A2 = 0xffff<<14; for (i = 0; i < ((dstW + 1) >> 1); i++) { int Y1 = (buf0[i * 2] * yalpha1 + buf1[i * 2] * yalpha) >> 14; @@ -810,6 +811,7 @@ yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0, { const int32_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0]; int i; + int A1 = 0xffff<<14, A2= 0xffff<<14; if (uvalpha < 2048) { for (i = 0; i < ((dstW + 1) >> 1); i++) { @@ -818,7 +820,6 @@ yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0, int U = (ubuf0[i] + (-128 << 11)) >> 2; int V = (vbuf0[i] + (-128 << 11)) >> 2; int R, G, B; - int A1, A2; Y1 -= c->yuv2rgb_y_offset; Y2 -= c->yuv2rgb_y_offset; @@ -851,13 +852,13 @@ yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0, } } else { const int32_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1]; + int A1 = 0xffff<<14, A2 = 0xffff<<14; 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 R, G, B; - int A1, A2; Y1 -= c->yuv2rgb_y_offset; Y2 -= c->yuv2rgb_y_offset; |