mirror of
https://github.com/mpv-player/mpv
synced 2024-11-14 22:48:35 +01:00
fb5d935251
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10142 b3059339-0415-0410-9bf9-f77b7e298cf2
79 lines
2.0 KiB
C
79 lines
2.0 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 {
|
|
int field;
|
|
};
|
|
|
|
//===========================================================================//
|
|
|
|
static int config(struct vf_instance_s* vf,
|
|
int width, int height, int d_width, int d_height,
|
|
unsigned int flags, unsigned int outfmt){
|
|
return vf_next_config(vf,width,height/2,d_width,d_height,flags,outfmt);
|
|
}
|
|
|
|
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...
|
|
return vf_next_put_image(vf,(mp_image_t*)mpi->priv);
|
|
}
|
|
|
|
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
|
|
MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
|
|
mpi->width, mpi->height/2);
|
|
|
|
// set up mpi as a double-stride image of dmpi:
|
|
vf->dmpi->planes[0]=mpi->planes[0]+mpi->stride[0]*vf->priv->field;
|
|
vf->dmpi->stride[0]=2*mpi->stride[0];
|
|
if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){
|
|
vf->dmpi->planes[1]=mpi->planes[1]+
|
|
mpi->stride[1]*vf->priv->field;
|
|
vf->dmpi->stride[1]=2*mpi->stride[1];
|
|
vf->dmpi->planes[2]=mpi->planes[2]+
|
|
mpi->stride[2]*vf->priv->field;
|
|
vf->dmpi->stride[2]=2*mpi->stride[2];
|
|
} else
|
|
vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
|
|
|
|
return vf_next_put_image(vf,vf->dmpi);
|
|
}
|
|
|
|
//===========================================================================//
|
|
|
|
static void uninit(struct vf_instance_s* vf)
|
|
{
|
|
free(vf->priv);
|
|
}
|
|
|
|
static int 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));
|
|
if (args) sscanf(args, "%d", &vf->priv->field);
|
|
vf->priv->field &= 1;
|
|
return 1;
|
|
}
|
|
|
|
vf_info_t vf_info_field = {
|
|
"extract single field",
|
|
"field",
|
|
"Rich Felker",
|
|
"",
|
|
open,
|
|
NULL
|
|
};
|
|
|
|
//===========================================================================//
|