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https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
boxblur, another useless filter
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8011 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael
parent
2605ca58e1
commit
cdef66ed14
@ -195,3 +195,8 @@ Current plugins:
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i interleave
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s swap fields (exchange even & odd lines)
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MPI: TEMP, accepts stride
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-vop boxblur=radius:power[:radius:power]
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radius size of the filter
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power how often the filter should be applied
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MPI: TEMP, accepts stride
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@ -6,7 +6,7 @@ LIBNAME2 = libmpencoders.a
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AUDIO_SRCS=dec_audio.c ad.c ad_liba52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3lib.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_libvorbis.c ad_libmad.c ad_realaud.c ad_libdv.c ad_qtaudio.c
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VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_realvid.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_mpegpes.c vd_svq1.c vd_xvid.c vd_libdv.c vd_lcl.c vd_mtga.c vd_lzo.c
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c vf_boxblur.c
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ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c ve_xvid.c
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NATIVE_SRCS=native/RTjpegN.c native/cinepak.c native/cyuv.c native/fli.c native/minilzo.c native/msvidc.c native/nuppelvideo.c native/qtrle.c native/qtrpza.c native/qtsmc.c native/roqav.c native/xa_gsm.c native/svq1.c
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@ -48,6 +48,7 @@ extern vf_info_t vf_info_2xsai;
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extern vf_info_t vf_info_unsharp;
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extern vf_info_t vf_info_swapuv;
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extern vf_info_t vf_info_il;
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extern vf_info_t vf_info_boxblur;
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char** vo_plugin_args=(char**) NULL;
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@ -89,6 +90,7 @@ static vf_info_t* filter_list[]={
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&vf_info_unsharp,
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&vf_info_swapuv,
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&vf_info_il,
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&vf_info_boxblur,
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NULL
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};
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219
libmpcodecs/vf_boxblur.c
Normal file
219
libmpcodecs/vf_boxblur.c
Normal file
@ -0,0 +1,219 @@
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/*
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Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "../libvo/fastmemcpy.h"
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//===========================================================================//
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typedef struct FilterParam{
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int radius;
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int power;
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}FilterParam;
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struct vf_priv_s {
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FilterParam lumaParam;
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FilterParam chromaParam;
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};
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/***************************************************************************/
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static inline void blur(uint8_t *dst, uint8_t *src, int w, int radius, int dstStep, int srcStep){
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int x;
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const int length= radius*2 + 1;
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const int inv= ((1<<16) + length/2)/length;
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int sum= 0;
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for(x=0; x<radius; x++){
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sum+= src[x*srcStep]<<1;
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}
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sum+= src[radius*srcStep];
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for(x=0; x<=radius; x++){
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sum+= src[(radius+x)*srcStep] - src[(radius-x)*srcStep];
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dst[x*dstStep]= (sum*inv + (1<<15))>>16;
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}
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for(; x<w-radius; x++){
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sum+= src[(radius+x)*srcStep] - src[(x-radius-1)*srcStep];
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dst[x*dstStep]= (sum*inv + (1<<15))>>16;
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}
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for(; x<w; x++){
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sum+= src[(2*w-radius-x-1)*srcStep] - src[(x-radius-1)*srcStep];
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dst[x*dstStep]= (sum*inv + (1<<15))>>16;
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}
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}
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static inline void blur2(uint8_t *dst, uint8_t *src, int w, int radius, int power, int dstStep, int srcStep){
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uint8_t temp[2][4096];
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uint8_t *a= temp[0], *b=temp[1];
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if(radius){
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blur(a, src, w, radius, 1, srcStep);
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for(; power>2; power--){
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uint8_t *c;
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blur(b, a, w, radius, 1, 1);
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c=a; a=b; b=c;
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}
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if(power>1)
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blur(dst, a, w, radius, dstStep, 1);
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else{
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int i;
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for(i=0; i<w; i++)
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dst[i*dstStep]= a[i];
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}
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}else{
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int i;
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for(i=0; i<w; i++)
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dst[i*dstStep]= src[i*srcStep];
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}
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}
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static void hBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){
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int y;
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if(radius==0 && dst==src) return;
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for(y=0; y<h; y++){
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blur2(dst + y*dstStride, src + y*srcStride, w, radius, power, 1, 1);
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}
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}
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//FIXME optimize (x before y !!!)
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static void vBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){
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int x;
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if(radius==0 && dst==src) return;
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for(x=0; x<w; x++){
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blur2(dst + x, src + x, h, radius, power, dstStride, srcStride);
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}
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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int cw= mpi->w >> mpi->chroma_x_shift;
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int ch= mpi->h >> mpi->chroma_y_shift;
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mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->w,mpi->h);
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assert(mpi->flags&MP_IMGFLAG_PLANAR);
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hBlur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h,
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dmpi->stride[0], mpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power);
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hBlur(dmpi->planes[1], mpi->planes[1], cw,ch,
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dmpi->stride[1], mpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
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hBlur(dmpi->planes[2], mpi->planes[2], cw,ch,
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dmpi->stride[2], mpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
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vBlur(dmpi->planes[0], dmpi->planes[0], mpi->w,mpi->h,
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dmpi->stride[0], dmpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power);
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vBlur(dmpi->planes[1], dmpi->planes[1], cw,ch,
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dmpi->stride[1], dmpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
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vBlur(dmpi->planes[2], dmpi->planes[2], cw,ch,
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dmpi->stride[2], dmpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
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return vf_next_put_image(vf,dmpi);
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}
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//===========================================================================//
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static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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switch(fmt)
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{
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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case IMGFMT_YVU9:
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case IMGFMT_444P:
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case IMGFMT_422P:
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case IMGFMT_411P:
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return vf_next_query_format(vf, fmt);
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}
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return 0;
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}
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static int open(vf_instance_t *vf, char* args){
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char *pos, *max;
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int e;
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vf->config=config;
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vf->put_image=put_image;
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// vf->get_image=get_image;
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vf->query_format=query_format;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv, 0, sizeof(struct vf_priv_s));
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if(args==NULL) return 0;
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e=sscanf(args, "%d:%d:%d:%d",
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&vf->priv->lumaParam.radius,
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&vf->priv->lumaParam.power,
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&vf->priv->chromaParam.radius,
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&vf->priv->chromaParam.power
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);
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if(e==2){
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vf->priv->chromaParam.radius= vf->priv->lumaParam.radius;
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vf->priv->chromaParam.power = vf->priv->lumaParam.power;
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}else if(e!=4)
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return 0;
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if(vf->priv->lumaParam.radius < 0) return 0;
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if(vf->priv->chromaParam.radius < 0) return 0;
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return 1;
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}
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vf_info_t vf_info_boxblur = {
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"box blur",
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"boxblur",
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"Michael Niedermayer",
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"",
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open
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};
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//===========================================================================//
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