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mirror of https://github.com/mpv-player/mpv synced 2024-10-30 04:46:41 +01:00
mpv/libmpcodecs/vf_mirror.c
albeu 33b62af947 Add the new -vf option wich is the same as vop in reverse order.
Syntax is we decided, so you can give the nomes or not with both
vop and vf. vf take precedence over vop.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9594 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-03-15 18:01:02 +00:00

117 lines
2.9 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "../config.h"
#include "../mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
#include "../postproc/rgb2rgb.h"
static void mirror(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,unsigned int fmt){
int y;
for(y=0;y<h;y++){
int x;
switch(bpp){
case 1:
for(x=0;x<w;x++) dst[x]=src[w-x-1];
break;
case 2:
switch(fmt){
case IMGFMT_UYVY: {
// packed YUV is tricky. U,V are 32bpp while Y is 16bpp:
int w2=w>>1;
for(x=0;x<w2;x++){
// TODO: optimize this...
dst[x*4+0]=src[0+(w2-x-1)*4];
dst[x*4+1]=src[3+(w2-x-1)*4];
dst[x*4+2]=src[2+(w2-x-1)*4];
dst[x*4+3]=src[1+(w2-x-1)*4];
}
break; }
case IMGFMT_YUY2:
case IMGFMT_YVYU: {
// packed YUV is tricky. U,V are 32bpp while Y is 16bpp:
int w2=w>>1;
for(x=0;x<w2;x++){
// TODO: optimize this...
dst[x*4+0]=src[2+(w2-x-1)*4];
dst[x*4+1]=src[1+(w2-x-1)*4];
dst[x*4+2]=src[0+(w2-x-1)*4];
dst[x*4+3]=src[3+(w2-x-1)*4];
}
break; }
default:
for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+(w-x-1)*2));
}
break;
case 3:
for(x=0;x<w;x++){
dst[x*3+0]=src[0+(w-x-1)*3];
dst[x*3+1]=src[1+(w-x-1)*3];
dst[x*3+2]=src[2+(w-x-1)*3];
}
break;
case 4:
for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+(w-x-1)*4));
}
src+=srcstride;
dst+=dststride;
}
}
//===========================================================================//
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
mp_image_t *dmpi;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w, mpi->h);
if(mpi->flags&MP_IMGFLAG_PLANAR){
mirror(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,1,mpi->imgfmt);
mirror(dmpi->planes[1],mpi->planes[1],
dmpi->stride[1],mpi->stride[1],
dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,mpi->imgfmt);
mirror(dmpi->planes[2],mpi->planes[2],
dmpi->stride[2],mpi->stride[2],
dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,mpi->imgfmt);
} else {
mirror(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,dmpi->bpp>>3,mpi->imgfmt);
dmpi->planes[1]=mpi->planes[1]; // passthrough rgb8 palette
}
return vf_next_put_image(vf,dmpi);
}
//===========================================================================//
static int open(vf_instance_t *vf, char* args){
//vf->config=config;
vf->put_image=put_image;
return 1;
}
vf_info_t vf_info_mirror = {
"horizontal mirror",
"mirror",
"Eyck",
"",
open,
NULL
};
//===========================================================================//