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#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"
struct vf_priv_s {
int direction;
};
static void rotate(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,int dir){
int y;
if(dir&1){
src+=srcstride*(w-1);
srcstride*=-1;
}
if(dir&2){
dst+=dststride*(h-1);
dststride*=-1;
}
for(y=0;y<h;y++){
int x;
switch(bpp){
case 1:
for(x=0;x<w;x++) dst[x]=src[y+x*srcstride];
break;
case 2:
for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+y*2+x*srcstride));
break;
case 3:
for(x=0;x<w;x++){
dst[x*3+0]=src[0+y*3+x*srcstride];
dst[x*3+1]=src[1+y*3+x*srcstride];
dst[x*3+2]=src[2+y*3+x*srcstride];
}
break;
case 4:
for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+y*4+x*srcstride));
}
dst+=dststride;
}
}
//===========================================================================//
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
if (vf->priv->direction & 4) {
if (width<height) vf->priv->direction&=3;
}
if (vf->priv->direction & 4){
vf->put_image=vf_next_put_image; // passthru mode!
if (vf->next->draw_slice) vf->draw_slice=vf_next_draw_slice;
/* FIXME: this should be in an other procedure in vf.c; that should always check
whether the filter after the passthrough one still (not)supports slices */
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
return vf_next_config(vf,height,width,d_height,d_width,flags,outfmt);
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
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->h, mpi->w);
if(mpi->flags&MP_IMGFLAG_PLANAR){
rotate(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,1,vf->priv->direction);
rotate(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,vf->priv->direction);
rotate(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,vf->priv->direction);
} else {
rotate(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,dmpi->bpp>>3,vf->priv->direction);
dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
}
return vf_next_put_image(vf,dmpi, pts);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
if(IMGFMT_IS_RGB(fmt) || IMGFMT_IS_BGR(fmt)) return vf_next_query_format(vf, fmt);
// we can support only symmetric (chroma_x_shift==chroma_y_shift) YUV formats:
switch(fmt) {
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
// case IMGFMT_IF09:
case IMGFMT_Y8:
case IMGFMT_Y800:
case IMGFMT_444P:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
vf->priv->direction=args?atoi(args):0;
return 1;
}
const vf_info_t vf_info_rotate = {
"rotate",
"rotate",
"A'rpi",
"",
open,
NULL
};
//===========================================================================//
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