RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

-sws 6 (luma bicubic & chroma bilinear) 

Originally committed as revision 6581 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-06-27 19:17:25 +00:00
parent cf7d1c1a73
commit 81a571a8b3
2 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
postproc/swscale.c
View File

@ -257,6 +257,8 @@ IMGFMT_BGR15,
IMGFMT_BGR16,
IMGFMT_BGR24,
IMGFMT_BGR32,
IMGFMT_RGB24,
IMGFMT_RGB32,
//IMGFMT_Y8,
IMGFMT_Y800,
//IMGFMT_YUY2,
@ -940,6 +942,7 @@ void swsGetFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, Sws
case 3: *flags|= SWS_X; break;
case 4: *flags|= SWS_POINT; break;
case 5: *flags|= SWS_AREA; break;
case 6: *flags|= SWS_BICUBLIN; break;
default:*flags|= SWS_BILINEAR; break;
}
@ -2251,10 +2254,12 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
const int filterAlign= cpuCaps.hasMMX ? 4 : 1;
initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
srcW , dstW, filterAlign, 1<<14, flags,
srcW , dstW, filterAlign, 1<<14,
(flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
srcFilter->lumH, dstFilter->lumH);
initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
c->chrSrcW, c->chrDstW, filterAlign, 1<<14, flags,
c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
(flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
srcFilter->chrH, dstFilter->chrH);
#ifdef ARCH_X86
@ -2276,11 +2281,13 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
/* precalculate vertical scaler filter coefficients */
initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
srcH , dstH, 1, (1<<12)-4, flags,
srcH , dstH, 1, (1<<12)-4,
(flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
srcFilter->lumV, dstFilter->lumV);
initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
c->chrSrcH, c->chrDstH, 1, (1<<12)-4, flags,
srcFilter->chrV, dstFilter->chrV);
c->chrSrcH, c->chrDstH, 1, (1<<12)-4,
(flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
srcFilter->chrV, dstFilter->chrV);
// Calculate Buffer Sizes so that they wont run out while handling these damn slices
c->vLumBufSize= c->vLumFilterSize;
@ -2344,6 +2351,8 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
MSG_INFO("\nSwScaler: Nearest Neighbor / POINT scaler, ");
else if(flags&SWS_AREA)
MSG_INFO("\nSwScaler: Area Averageing scaler, ");
else if(flags&SWS_BICUBLIN)
MSG_INFO("\nSwScaler: luma BICUBIC / chroma BILINEAR, ");
else
MSG_INFO("\nSwScaler: ehh flags invalid?! ");

1
postproc/swscale.h
View File

@ -23,6 +23,7 @@
#define SWS_X 8
#define SWS_POINT 0x10
#define SWS_AREA 0x20
#define SWS_BICUBLIN 0x40
#define SWS_SRC_V_CHR_DROP_MASK 0x300
#define SWS_SRC_V_CHR_DROP_SHIFT 8