| /* |
| * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of MPlayer. |
| * |
| * MPlayer 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. |
| * |
| * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <inttypes.h> |
| #include <assert.h> |
| |
| #include "config.h" |
| #include "mp_msg.h" |
| |
| #if HAVE_MALLOC_H |
| #include <malloc.h> |
| #endif |
| |
| #include "libavutil/avutil.h" |
| #include "img_format.h" |
| #include "mp_image.h" |
| #include "vf.h" |
| #include "libswscale/swscale.h" |
| #include "vf_scale.h" |
| |
| |
| //===========================================================================// |
| |
| typedef struct FilterParam{ |
| float radius; |
| float preFilterRadius; |
| float strength; |
| float quality; |
| struct SwsContext *preFilterContext; |
| uint8_t *preFilterBuf; |
| int preFilterStride; |
| int distWidth; |
| int distStride; |
| int *distCoeff; |
| int colorDiffCoeff[512]; |
| }FilterParam; |
| |
| struct vf_priv_s { |
| FilterParam luma; |
| FilterParam chroma; |
| }; |
| |
| |
| /***************************************************************************/ |
| |
| //FIXME stupid code duplication |
| static void getSubSampleFactors(int *h, int *v, int format){ |
| switch(format){ |
| default: |
| assert(0); |
| 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){ |
| int stride= (width+7)&~7; |
| SwsVector *vec; |
| SwsFilter swsF; |
| int i,x,y; |
| f->preFilterBuf= av_malloc(stride*height); |
| f->preFilterStride= stride; |
| |
| vec = sws_getGaussianVec(f->preFilterRadius, f->quality); |
| swsF.lumH= swsF.lumV= vec; |
| swsF.chrH= swsF.chrV= NULL; |
| f->preFilterContext= sws_getContext( |
| width, height, PIX_FMT_GRAY8, width, height, PIX_FMT_GRAY8, SWS_POINT, &swsF, NULL, NULL); |
| |
| sws_freeVec(vec); |
| vec = sws_getGaussianVec(f->strength, 5.0); |
| for(i=0; i<512; i++){ |
| double d; |
| int index= i-256 + vec->length/2; |
| |
| if(index<0 || index>=vec->length) d= 0.0; |
| else d= vec->coeff[index]; |
| |
| f->colorDiffCoeff[i]= (int)(d/vec->coeff[vec->length/2]*(1<<12) + 0.5); |
| } |
| sws_freeVec(vec); |
| vec = sws_getGaussianVec(f->radius, f->quality); |
| f->distWidth= vec->length; |
| f->distStride= (vec->length+7)&~7; |
| f->distCoeff= av_malloc(f->distWidth*f->distStride*sizeof(int32_t)); |
| |
| for(y=0; y<vec->length; y++){ |
| for(x=0; x<vec->length; x++){ |
| double d= vec->coeff[x] * vec->coeff[y]; |
| |
| f->distCoeff[x + y*f->distStride]= (int)(d*(1<<10) + 0.5); |
| // if(y==vec->length/2) |
| // printf("%6d ", f->distCoeff[x + y*f->distStride]); |
| } |
| } |
| sws_freeVec(vec); |
| |
| return 0; |
| } |
| |
| static int config(struct vf_instance *vf, |
| int width, int height, int d_width, int d_height, |
| unsigned int flags, unsigned int outfmt){ |
| |
| int sw, sh; |
| //__asm__ volatile("emms\n\t"); |
| 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->preFilterContext) sws_freeContext(f->preFilterContext); |
| f->preFilterContext=NULL; |
| |
| av_free(f->preFilterBuf); |
| f->preFilterBuf=NULL; |
| |
| av_free(f->distCoeff); |
| f->distCoeff=NULL; |
| } |
| |
| static void uninit(struct vf_instance *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; |
| const int radius= f.distWidth/2; |
| const uint8_t* const srcArray[MP_MAX_PLANES] = {src}; |
| uint8_t *dstArray[MP_MAX_PLANES]= {f.preFilterBuf}; |
| int srcStrideArray[MP_MAX_PLANES]= {srcStride}; |
| int dstStrideArray[MP_MAX_PLANES]= {f.preFilterStride}; |
| |
| // f.preFilterContext->swScale(f.preFilterContext, srcArray, srcStrideArray, 0, h, dstArray, dstStrideArray); |
| sws_scale(f.preFilterContext, srcArray, srcStrideArray, 0, h, dstArray, dstStrideArray); |
| |
| for(y=0; y<h; y++){ |
| for(x=0; x<w; x++){ |
| int sum=0; |
| int div=0; |
| int dy; |
| const int preVal= f.preFilterBuf[x + y*f.preFilterStride]; |
| #if 0 |
| const int srcVal= src[x + y*srcStride]; |
| if((x/32)&1){ |
| dst[x + y*dstStride]= srcVal; |
| if(y%32==0) dst[x + y*dstStride]= 0; |
| continue; |
| } |
| #endif |
| if(x >= radius && x < w - radius){ |
| for(dy=0; dy<radius*2+1; dy++){ |
| int dx; |
| int iy= y+dy - radius; |
| if (iy<0) iy= -iy; |
| else if(iy>=h) iy= h+h-iy-1; |
| |
| for(dx=0; dx<radius*2+1; dx++){ |
| const int ix= x+dx - radius; |
| int factor; |
| |
| factor= f.colorDiffCoeff[256+preVal - f.preFilterBuf[ix + iy*f.preFilterStride] ] |
| *f.distCoeff[dx + dy*f.distStride]; |
| sum+= src[ix + iy*srcStride] *factor; |
| div+= factor; |
| } |
| } |
| }else{ |
| for(dy=0; dy<radius*2+1; dy++){ |
| int dx; |
| int iy= y+dy - radius; |
| if (iy<0) iy= -iy; |
| else if(iy>=h) iy= h+h-iy-1; |
| |
| for(dx=0; dx<radius*2+1; dx++){ |
| int ix= x+dx - radius; |
| int factor; |
| if (ix<0) ix= -ix; |
| else if(ix>=w) ix= w+w-ix-1; |
| |
| factor= f.colorDiffCoeff[256+preVal - f.preFilterBuf[ix + iy*f.preFilterStride] ] |
| *f.distCoeff[dx + dy*f.distStride]; |
| sum+= src[ix + iy*srcStride] *factor; |
| div+= factor; |
| } |
| } |
| } |
| dst[x + y*dstStride]= (sum + div/2)/div; |
| } |
| } |
| } |
| |
| static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ |
| 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, pts); |
| } |
| |
| //===========================================================================// |
| |
| static int query_format(struct vf_instance *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 vf_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:%f:%f:%f:%f", |
| &vf->priv->luma.radius, |
| &vf->priv->luma.preFilterRadius, |
| &vf->priv->luma.strength, |
| &vf->priv->chroma.radius, |
| &vf->priv->chroma.preFilterRadius, |
| &vf->priv->chroma.strength |
| ); |
| |
| vf->priv->luma.quality = vf->priv->chroma.quality= 3.0; |
| |
| if(e==3){ |
| vf->priv->chroma.radius= vf->priv->luma.radius; |
| vf->priv->chroma.preFilterRadius = vf->priv->luma.preFilterRadius; |
| vf->priv->chroma.strength= vf->priv->luma.strength; |
| }else if(e!=6) |
| return 0; |
| |
| // if(vf->priv->luma.radius < 0) return 0; |
| // if(vf->priv->chroma.radius < 0) return 0; |
| |
| return 1; |
| } |
| |
| const vf_info_t vf_info_sab = { |
| "shape adaptive blur", |
| "sab", |
| "Michael Niedermayer", |
| "", |
| vf_open, |
| NULL |
| }; |
| |
| //===========================================================================// |