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author | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-11-04 20:39:27 +0000 |
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committer | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-11-04 20:39:27 +0000 |
commit | 9ec9ce9fb5c528c684bc5f2fcb309a21c869a89f (patch) | |
tree | 8df80dfefa9ff9215f916a47735690640b33996c /libmpcodecs/vf_smartblur.c | |
parent | 772b91172cb83c58016dd76694551cd2a0fd1ba6 (diff) | |
download | mpv-9ec9ce9fb5c528c684bc5f2fcb309a21c869a89f.tar.bz2 mpv-9ec9ce9fb5c528c684bc5f2fcb309a21c869a89f.tar.xz |
smartblur
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8107 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpcodecs/vf_smartblur.c')
-rw-r--r-- | libmpcodecs/vf_smartblur.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/libmpcodecs/vf_smartblur.c b/libmpcodecs/vf_smartblur.c new file mode 100644 index 0000000000..ffca24e96e --- /dev/null +++ b/libmpcodecs/vf_smartblur.c @@ -0,0 +1,262 @@ +/* + Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> +#include <assert.h> + +#include "../config.h" +#include "../mp_msg.h" + +#ifdef HAVE_MALLOC_H +#include <malloc.h> +#endif + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" +#include "../libvo/fastmemcpy.h" +#include "../postproc/swscale.h" + +//===========================================================================// + +typedef struct FilterParam{ + float radius; + float strength; + int threshold; + float quality; + SwsContext *filterContext; +}FilterParam; + +struct vf_priv_s { + FilterParam luma; + FilterParam chroma; +}; + + +/***************************************************************************/ + +//FIXME stupid code duplication +static void getSubSampleFactors(int *h, int *v, int format){ + switch(format){ + case IMGFMT_YV12: + case IMGFMT_I420: + *h=1; + *v=1; + break; + case IMGFMT_YVU9: + *h=2; + *v=2; + break; + case IMGFMT_444P: + *h=0; + *v=0; + break; + case IMGFMT_422P: + *h=1; + *v=0; + break; + case IMGFMT_411P: + *h=2; + *v=0; + break; + } +} + +static int allocStuff(FilterParam *f, int width, int height){ + SwsVector *vec; + SwsFilter swsF; + + vec = getGaussianVec(f->radius, f->quality); + scaleVec(vec, f->strength); + vec->coeff[vec->length/2]+= 1.0 - f->strength; + swsF.lumH= swsF.lumV= vec; + swsF.chrH= swsF.chrV= NULL; + f->filterContext= getSwsContext( + width, height, IMGFMT_Y8, width, height, IMGFMT_Y8, 0, &swsF, NULL); + + freeVec(vec); + + return 0; +} + +static int config(struct vf_instance_s* vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + + int sw, sh; + + allocStuff(&vf->priv->luma, width, height); + + getSubSampleFactors(&sw, &sh, outfmt); + allocStuff(&vf->priv->chroma, width>>sw, height>>sh); + + return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); +} + +static void freeBuffers(FilterParam *f){ + if(f->filterContext) freeSwsContext(f->filterContext); + f->filterContext=NULL; +} + +static void uninit(struct vf_instance_s* vf){ + if(!vf->priv) return; + + freeBuffers(&vf->priv->luma); + freeBuffers(&vf->priv->chroma); + + free(vf->priv); + vf->priv=NULL; +} + +static inline void blur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, FilterParam *fp){ + int x, y; + FilterParam f= *fp; + uint8_t *srcArray[3]= {src, NULL, NULL}; + uint8_t *dstArray[3]= {dst, NULL, NULL}; + int srcStrideArray[3]= {srcStride, 0, 0}; + int dstStrideArray[3]= {dstStride, 0, 0}; + + f.filterContext->swScale(f.filterContext, srcArray, srcStrideArray, 0, h, dstArray, dstStrideArray); + + if(f.threshold > 0){ + for(y=0; y<h; y++){ + for(x=0; x<w; x++){ + const int orig= src[x + y*srcStride]; + const int filtered= dst[x + y*dstStride]; + const int diff= orig - filtered; + + if(diff > 0){ + if(diff > 2*f.threshold){ + dst[x + y*dstStride]= orig; + }else if(diff > f.threshold){ + dst[x + y*dstStride]= filtered + diff - f.threshold; + } + }else{ + if(-diff > 2*f.threshold){ + dst[x + y*dstStride]= orig; + }else if(-diff > f.threshold){ + dst[x + y*dstStride]= filtered + diff + f.threshold; + } + } + } + } + }else if(f.threshold < 0){ + for(y=0; y<h; y++){ + for(x=0; x<w; x++){ + const int orig= src[x + y*srcStride]; + const int filtered= dst[x + y*dstStride]; + const int diff= orig - filtered; + + if(diff > 0){ + if(diff > -2*f.threshold){ + }else if(diff > -f.threshold){ + dst[x + y*dstStride]= orig - diff - f.threshold; + }else + dst[x + y*dstStride]= orig; + }else{ + if(diff < 2*f.threshold){ + }else if(diff < f.threshold){ + dst[x + y*dstStride]= orig - diff + f.threshold; + }else + dst[x + y*dstStride]= orig; + } + } + } + } +} + +static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){ + int cw= mpi->w >> mpi->chroma_x_shift; + int ch= mpi->h >> mpi->chroma_y_shift; + + mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt, + MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, + mpi->w,mpi->h); + + assert(mpi->flags&MP_IMGFLAG_PLANAR); + + blur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h, dmpi->stride[0], mpi->stride[0], &vf->priv->luma); + blur(dmpi->planes[1], mpi->planes[1], cw , ch , dmpi->stride[1], mpi->stride[1], &vf->priv->chroma); + blur(dmpi->planes[2], mpi->planes[2], cw , ch , dmpi->stride[2], mpi->stride[2], &vf->priv->chroma); + + return vf_next_put_image(vf,dmpi); +} + +//===========================================================================// + +static int query_format(struct vf_instance_s* vf, unsigned int fmt){ + switch(fmt) + { + case IMGFMT_YV12: + case IMGFMT_I420: + case IMGFMT_IYUV: + case IMGFMT_YVU9: + case IMGFMT_444P: + case IMGFMT_422P: + case IMGFMT_411P: + return vf_next_query_format(vf, fmt); + } + return 0; +} + +static int open(vf_instance_t *vf, char* args){ + int e; + + vf->config=config; + vf->put_image=put_image; +// vf->get_image=get_image; + vf->query_format=query_format; + vf->uninit=uninit; + vf->priv=malloc(sizeof(struct vf_priv_s)); + memset(vf->priv, 0, sizeof(struct vf_priv_s)); + + if(args==NULL) return 0; + + e=sscanf(args, "%f:%f:%d:%f:%f:%d", + &vf->priv->luma.radius, + &vf->priv->luma.strength, + &vf->priv->luma.threshold, + &vf->priv->chroma.radius, + &vf->priv->chroma.strength, + &vf->priv->chroma.threshold + ); + + vf->priv->luma.quality = vf->priv->chroma.quality= 3.0; + + if(e==3){ + vf->priv->chroma.radius= vf->priv->luma.radius; + vf->priv->chroma.strength= vf->priv->luma.strength; + vf->priv->chroma.threshold = vf->priv->luma.threshold; + }else if(e!=6) + return 0; + + return 1; +} + +vf_info_t vf_info_smartblur = { + "smart blur", + "smartblur", + "Michael Niedermayer", + "", + open +}; + +//===========================================================================// |