mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
f713cb0faf
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24997 b3059339-0415-0410-9bf9-f77b7e298cf2
219 lines
5.7 KiB
C
219 lines
5.7 KiB
C
/*
|
|
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., 51 Franklin St, 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"
|
|
|
|
#ifdef HAVE_MALLOC_H
|
|
#include <malloc.h>
|
|
#endif
|
|
|
|
#include "img_format.h"
|
|
#include "mp_image.h"
|
|
#include "vf.h"
|
|
|
|
|
|
//===========================================================================//
|
|
|
|
typedef struct FilterParam{
|
|
int radius;
|
|
int power;
|
|
}FilterParam;
|
|
|
|
struct vf_priv_s {
|
|
FilterParam lumaParam;
|
|
FilterParam chromaParam;
|
|
};
|
|
|
|
|
|
/***************************************************************************/
|
|
|
|
|
|
static int config(struct vf_instance_s* vf,
|
|
int width, int height, int d_width, int d_height,
|
|
unsigned int flags, unsigned int outfmt){
|
|
|
|
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
|
|
}
|
|
|
|
static inline void blur(uint8_t *dst, uint8_t *src, int w, int radius, int dstStep, int srcStep){
|
|
int x;
|
|
const int length= radius*2 + 1;
|
|
const int inv= ((1<<16) + length/2)/length;
|
|
|
|
int sum= 0;
|
|
|
|
for(x=0; x<radius; x++){
|
|
sum+= src[x*srcStep]<<1;
|
|
}
|
|
sum+= src[radius*srcStep];
|
|
|
|
for(x=0; x<=radius; x++){
|
|
sum+= src[(radius+x)*srcStep] - src[(radius-x)*srcStep];
|
|
dst[x*dstStep]= (sum*inv + (1<<15))>>16;
|
|
}
|
|
|
|
for(; x<w-radius; x++){
|
|
sum+= src[(radius+x)*srcStep] - src[(x-radius-1)*srcStep];
|
|
dst[x*dstStep]= (sum*inv + (1<<15))>>16;
|
|
}
|
|
|
|
for(; x<w; x++){
|
|
sum+= src[(2*w-radius-x-1)*srcStep] - src[(x-radius-1)*srcStep];
|
|
dst[x*dstStep]= (sum*inv + (1<<15))>>16;
|
|
}
|
|
}
|
|
|
|
static inline void blur2(uint8_t *dst, uint8_t *src, int w, int radius, int power, int dstStep, int srcStep){
|
|
uint8_t temp[2][4096];
|
|
uint8_t *a= temp[0], *b=temp[1];
|
|
|
|
if(radius){
|
|
blur(a, src, w, radius, 1, srcStep);
|
|
for(; power>2; power--){
|
|
uint8_t *c;
|
|
blur(b, a, w, radius, 1, 1);
|
|
c=a; a=b; b=c;
|
|
}
|
|
if(power>1)
|
|
blur(dst, a, w, radius, dstStep, 1);
|
|
else{
|
|
int i;
|
|
for(i=0; i<w; i++)
|
|
dst[i*dstStep]= a[i];
|
|
}
|
|
}else{
|
|
int i;
|
|
for(i=0; i<w; i++)
|
|
dst[i*dstStep]= src[i*srcStep];
|
|
}
|
|
}
|
|
|
|
static void hBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){
|
|
int y;
|
|
|
|
if(radius==0 && dst==src) return;
|
|
|
|
for(y=0; y<h; y++){
|
|
blur2(dst + y*dstStride, src + y*srcStride, w, radius, power, 1, 1);
|
|
}
|
|
}
|
|
|
|
//FIXME optimize (x before y !!!)
|
|
static void vBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){
|
|
int x;
|
|
|
|
if(radius==0 && dst==src) return;
|
|
|
|
for(x=0; x<w; x++){
|
|
blur2(dst + x, src + x, h, radius, power, dstStride, srcStride);
|
|
}
|
|
}
|
|
|
|
static int put_image(struct vf_instance_s* 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 | MP_IMGFLAG_READABLE,
|
|
mpi->w,mpi->h);
|
|
|
|
assert(mpi->flags&MP_IMGFLAG_PLANAR);
|
|
|
|
hBlur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h,
|
|
dmpi->stride[0], mpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power);
|
|
hBlur(dmpi->planes[1], mpi->planes[1], cw,ch,
|
|
dmpi->stride[1], mpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
|
|
hBlur(dmpi->planes[2], mpi->planes[2], cw,ch,
|
|
dmpi->stride[2], mpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
|
|
|
|
vBlur(dmpi->planes[0], dmpi->planes[0], mpi->w,mpi->h,
|
|
dmpi->stride[0], dmpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power);
|
|
vBlur(dmpi->planes[1], dmpi->planes[1], cw,ch,
|
|
dmpi->stride[1], dmpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
|
|
vBlur(dmpi->planes[2], dmpi->planes[2], cw,ch,
|
|
dmpi->stride[2], dmpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power);
|
|
|
|
return vf_next_put_image(vf,dmpi, pts);
|
|
}
|
|
|
|
//===========================================================================//
|
|
|
|
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->priv=malloc(sizeof(struct vf_priv_s));
|
|
memset(vf->priv, 0, sizeof(struct vf_priv_s));
|
|
|
|
if(args==NULL) return 0;
|
|
|
|
e=sscanf(args, "%d:%d:%d:%d",
|
|
&vf->priv->lumaParam.radius,
|
|
&vf->priv->lumaParam.power,
|
|
&vf->priv->chromaParam.radius,
|
|
&vf->priv->chromaParam.power
|
|
);
|
|
|
|
if(e==2){
|
|
vf->priv->chromaParam.radius= vf->priv->lumaParam.radius;
|
|
vf->priv->chromaParam.power = vf->priv->lumaParam.power;
|
|
}else if(e!=4)
|
|
return 0;
|
|
|
|
if(vf->priv->lumaParam.radius < 0) return 0;
|
|
if(vf->priv->chromaParam.radius < 0) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
const vf_info_t vf_info_boxblur = {
|
|
"box blur",
|
|
"boxblur",
|
|
"Michael Niedermayer",
|
|
"",
|
|
open,
|
|
NULL
|
|
};
|
|
|
|
//===========================================================================//
|