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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
//===========================================================================//
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_next_query_format(vf,IMGFMT_YV12)<=0){
mp_msg(MSGT_VFILTER, MSGL_WARN, MSGTR_MPCODECS_WarnNextFilterDoesntSupport, "YVU9");
return 0;
}
return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YV12);
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
mp_image_t *dmpi;
int y,w,h;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,IMGFMT_YV12,
MP_IMGTYPE_TEMP, 0/*MP_IMGFLAG_ACCEPT_STRIDE*/,
mpi->w, mpi->h);
for(y=0;y<mpi->h;y++)
fast_memcpy(dmpi->planes[0]+dmpi->stride[0]*y,
mpi->planes[0]+mpi->stride[0]*y,
mpi->w);
w=mpi->w/4; h=mpi->h/2;
for(y=0;y<h;y++){
unsigned char* s=mpi->planes[1]+mpi->stride[1]*(y>>1);
unsigned char* d=dmpi->planes[1]+dmpi->stride[1]*y;
int x;
for(x=0;x<w;x++) d[2*x]=d[2*x+1]=s[x];
}
for(y=0;y<h;y++){
unsigned char* s=mpi->planes[2]+mpi->stride[2]*(y>>1);
unsigned char* d=dmpi->planes[2]+dmpi->stride[2]*y;
int x;
for(x=0;x<w;x++) d[2*x]=d[2*x+1]=s[x];
}
vf_clone_mpi_attributes(dmpi, mpi);
return vf_next_put_image(vf,dmpi, pts);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
if (fmt == IMGFMT_YVU9 || fmt == IMGFMT_IF09)
return vf_next_query_format(vf,IMGFMT_YV12) & (~VFCAP_CSP_SUPPORTED_BY_HW);
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
return 1;
}
const vf_info_t vf_info_yvu9 = {
"fast YVU9->YV12 conversion",
"yvu9",
"alex",
"",
open,
NULL
};
//===========================================================================//
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