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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "mp_msg.h"
#include "mp_image.h"
#include "vf.h"
struct vf_priv_s {
int interleave;
int height;
int width;
int stridefactor;
};
//===========================================================================//
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
int pixel_stride= (width+15)&~15; //FIXME this is ust a guess ... especially for non planar its somewhat bad one
#if 0
if(mpi->flags&MP_IMGFLAG_PLANAR)
pixel_stride= mpi->stride[0];
else
pixel_stride= 8*mpi->stride[0] / mpi->bpp;
#endif
if(vf->priv->interleave){
vf->priv->height= 2*height;
vf->priv->width= width - (pixel_stride/2);
vf->priv->stridefactor=1;
}else{
vf->priv->height= height/2;
vf->priv->width= width + pixel_stride;
vf->priv->stridefactor=4;
}
//printf("hX %d %d %d\n", vf->priv->width,vf->priv->height,vf->priv->stridefactor);
return ff_vf_next_config(vf, vf->priv->width, vf->priv->height,
(d_width*vf->priv->stridefactor)>>1, 2*d_height/vf->priv->stridefactor, flags, outfmt);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
if(mpi->flags&MP_IMGFLAG_DIRECT){
// we've used DR, so we're ready...
return ff_vf_next_put_image(vf,(mp_image_t*)mpi->priv, pts);
}
vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
vf->priv->width, vf->priv->height);
// set up mpi as a double-stride image of dmpi:
vf->dmpi->planes[0]=mpi->planes[0];
vf->dmpi->stride[0]=(mpi->stride[0]*vf->priv->stridefactor)>>1;
if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){
vf->dmpi->planes[1]=mpi->planes[1];
vf->dmpi->stride[1]=(mpi->stride[1]*vf->priv->stridefactor)>>1;
vf->dmpi->planes[2]=mpi->planes[2];
vf->dmpi->stride[2]=(mpi->stride[2]*vf->priv->stridefactor)>>1;
} else
vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
return ff_vf_next_put_image(vf,vf->dmpi, pts);
}
//===========================================================================//
static void uninit(struct vf_instance *vf)
{
free(vf->priv);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->config=config;
vf->put_image=put_image;
vf->uninit=uninit;
vf->default_reqs=VFCAP_ACCEPT_STRIDE;
vf->priv=calloc(1, sizeof(struct vf_priv_s));
vf->priv->interleave= args && (*args == 'i');
return 1;
}
const vf_info_t ff_vf_info_fil = {
"fast (de)interleaver",
"fil",
"Michael Niedermayer",
"",
vf_open,
NULL
};
//===========================================================================//
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