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mpv/libmpcodecs/vf_flip.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

98 lines
3.0 KiB
C

#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 int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
flags&=~8; // remove the FLIP flag
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
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>>mpi->chroma_y_shift)-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>>mpi->chroma_y_shift)-1);
mpi->stride[2]=-vf->priv->dmpi->stride[2];
}
mpi->flags|=MP_IMGFLAG_DIRECT;
mpi->priv=(void*)vf->priv->dmpi;
}
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
if(mpi->flags&MP_IMGFLAG_DIRECT){
// we've used DR, so we're ready...
if(!(mpi->flags&MP_IMGFLAG_PLANAR))
((mp_image_t*)mpi->priv)->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
return vf_next_put_image(vf,(mp_image_t*)mpi->priv);
}
vf->priv->dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_EXPORT, 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>>mpi->chroma_y_shift)-1);
vf->priv->dmpi->stride[1]=-mpi->stride[1];
vf->priv->dmpi->planes[2]=mpi->planes[2]+
mpi->stride[2]*((mpi->height>>mpi->chroma_y_shift)-1);
vf->priv->dmpi->stride[2]=-mpi->stride[2];
} else
vf->priv->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
return vf_next_put_image(vf,vf->priv->dmpi);
}
//===========================================================================//
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->get_image=get_image;
vf->put_image=put_image;
vf->default_reqs=VFCAP_ACCEPT_STRIDE;
vf->priv=malloc(sizeof(struct vf_priv_s));
return 1;
}
vf_info_t vf_info_flip = {
"flip image upside-down",
"flip",
"A'rpi",
"",
open,
NULL
};
//===========================================================================//