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| author | Michael Niedermayer <michaelni@gmx.at> | 2002-06-27 23:48:53 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2002-06-27 23:48:53 +0000 |
| commit | b241cbf2cf9b6f98d9788a2d5b03024d6502fa99 (patch) | |
| tree | 007e17071bf7f67b0796fb54d76c1e7a7ea6a0a0 /postproc/swscale.c | |
| parent | 81a571a8b372c5821687be907cb6088cac117fb0 (diff) | |
| download | ffmpeg-b241cbf2cf9b6f98d9788a2d5b03024d6502fa99.tar.gz | |
yvu9 -> yv12 unscaled converter with linear chroma scaling
Originally committed as revision 6583 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
Diffstat (limited to 'postproc/swscale.c')
| -rw-r--r-- | postproc/swscale.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/postproc/swscale.c b/postproc/swscale.c index 0f58c4d756..8a4223a7fa 100644 --- a/postproc/swscale.c +++ b/postproc/swscale.c @@ -1777,6 +1777,34 @@ static void bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], i dstStride[0], dstStride[1], srcStride[0]); } +static void yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, + int srcSliceH, uint8_t* dst[], int dstStride[]){ + int i; + + /* copy Y */ + if(srcStride[0]==dstStride[0]) + memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH); + else{ + uint8_t *srcPtr= src[0]; + uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY; + + for(i=0; i<srcSliceH; i++) + { + memcpy(dstPtr, srcPtr, c->srcW); + srcPtr+= srcStride[0]; + dstPtr+= dstStride[0]; + } + } + + if(c->dstFormat==IMGFMT_YV12){ + planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]); + planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]); + }else{ + planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]); + planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]); + } +} + /** * bring pointers in YUV order instead of YVU */ @@ -2051,7 +2079,7 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, vo_format_name(srcFormat), vo_format_name(dstFormat)); return c; } -#if 1 + /* simple copy */ if( srcFormat == dstFormat || (srcFormat==IMGFMT_YV12 && dstFormat==IMGFMT_I420) @@ -2067,7 +2095,17 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, vo_format_name(srcFormat), vo_format_name(dstFormat)); return c; } -#endif + + if( srcFormat==IMGFMT_YVU9 && (dstFormat==IMGFMT_YV12 || dstFormat==IMGFMT_I420) ) + { + c->swScale= yvu9toyv12Wrapper; + + if(flags&SWS_PRINT_INFO) + MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", + vo_format_name(srcFormat), vo_format_name(dstFormat)); + return c; + } + /* bgr32to24 & rgb32to24*/ if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR24) ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB24)) |