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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../config.h"
#include "../mp_msg.h"
#include "../mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
struct vf_priv_s {
mp_image_t *dmpi;
};
//===========================================================================//
static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
if(mpi->flags&MP_IMGFLAG_ACCEPT_STRIDE){
// try full DR !
vf->priv->dmpi=vf_get_image(vf->next,mpi->imgfmt,
mpi->type, mpi->flags, mpi->width, mpi->height);
// set up mpi as a upside-down image of dmpi:
mpi->planes[0]=vf->priv->dmpi->planes[0]+
vf->priv->dmpi->stride[0]*(vf->priv->dmpi->height-1);
mpi->stride[0]=-vf->priv->dmpi->stride[0];
if(mpi->flags&MP_IMGFLAG_PLANAR){
mpi->planes[1]=vf->priv->dmpi->planes[1]+
vf->priv->dmpi->stride[1]*((vf->priv->dmpi->height>>1)-1);
mpi->stride[1]=-vf->priv->dmpi->stride[1];
mpi->planes[2]=vf->priv->dmpi->planes[2]+
vf->priv->dmpi->stride[2]*((vf->priv->dmpi->height>>1)-1);
mpi->stride[2]=-vf->priv->dmpi->stride[2];
}
mpi->flags|=MP_IMGFLAG_DIRECT;
}
}
static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
if(mpi->flags&MP_IMGFLAG_DIRECT){
vf_next_put_image(vf,vf->priv->dmpi);
return; // we've used DR, so we're ready...
}
// hope we'll get DR buffer:
vf->priv->dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
// set up mpi as a upside-down image of dmpi:
vf->priv->dmpi->planes[0]=mpi->planes[0]+
mpi->stride[0]*(mpi->height-1);
vf->priv->dmpi->stride[0]=-mpi->stride[0];
if(vf->priv->dmpi->flags&MP_IMGFLAG_PLANAR){
vf->priv->dmpi->planes[1]=mpi->planes[1]+
mpi->stride[1]*((mpi->height>>1)-1);
vf->priv->dmpi->stride[1]=-mpi->stride[1];
vf->priv->dmpi->planes[2]=mpi->planes[2]+
mpi->stride[2]*((mpi->height>>1)-1);
vf->priv->dmpi->stride[2]=-mpi->stride[2];
}
vf_next_put_image(vf,vf->priv->dmpi);
}
//===========================================================================//
static int open(vf_instance_t *vf, char* args){
vf->get_image=get_image;
vf->put_image=put_image;
vf->priv=malloc(sizeof(struct vf_priv_s));
return 1;
}
vf_info_t vf_info_flip = {
"flip image upside-down",
"flip",
"A'rpi",
"",
open
};
//===========================================================================//
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