virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

sws/yuv2rgb: clarify precision of coeff and offset for mmx code

Browse Source 
It makes easier looking at the difference with the generic code just
below.
This commit is contained in:
Clément Bœsch 2016-02-26 22:34:10 +01:00
parent f9987464cf
commit 1e7a37f0a0
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libswscale/yuv2rgb.c
View File

@ -817,12 +817,12 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
c->uOffset = 0x0400040004000400LL;
c->vOffset = 0x0400040004000400LL;
c->yCoeff = roundToInt16(cy * 8192) * 0x0001000100010001ULL;
c->vrCoeff = roundToInt16(crv * 8192) * 0x0001000100010001ULL;
c->ubCoeff = roundToInt16(cbu * 8192) * 0x0001000100010001ULL;
c->vgCoeff = roundToInt16(cgv * 8192) * 0x0001000100010001ULL;
c->ugCoeff = roundToInt16(cgu * 8192) * 0x0001000100010001ULL;
c->yOffset = roundToInt16(oy * 8) * 0x0001000100010001ULL;
c->yCoeff = roundToInt16(cy * (1 << 13)) * 0x0001000100010001ULL;
c->vrCoeff = roundToInt16(crv * (1 << 13)) * 0x0001000100010001ULL;
c->ubCoeff = roundToInt16(cbu * (1 << 13)) * 0x0001000100010001ULL;
c->vgCoeff = roundToInt16(cgv * (1 << 13)) * 0x0001000100010001ULL;
c->ugCoeff = roundToInt16(cgu * (1 << 13)) * 0x0001000100010001ULL;
c->yOffset = roundToInt16(oy * (1 << 3)) * 0x0001000100010001ULL;
c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy * (1 << 13));
c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy * (1 << 9));