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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "../config.h"
#include "../mp_msg.h"
#include "../libvo/img_format.h"
#include "../mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
#include "../postproc/swscale.h"
struct vf_priv_s {
int w,h;
unsigned int fmt;
SwsContext *ctx;
};
//===========================================================================//
static unsigned int outfmt_list[]={
IMGFMT_BGR32,
IMGFMT_BGR24,
IMGFMT_BGR16,
IMGFMT_BGR15,
IMGFMT_YV12,
IMGFMT_I420,
IMGFMT_IYUV,
NULL
};
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
unsigned int* p=outfmt_list;
unsigned int best=0;
// find the best outfmt:
while(*p){
int ret=vf_next_query_format(vf,*p);
mp_msg(MSGT_VFILTER,MSGL_V,"scale: query(%s) -> %d\n",vo_format_name(*p),ret&3);
if(ret&2){ best=*p; break;} // no conversion -> bingo!
if(ret&1 && !best) best=*p; // best with conversion
++p;
}
if(!best){
printf("SwScale: no supported outfmt found :(\n");
return 0;
}
// calculate the missing parameters:
if(vf->priv->w<=0) vf->priv->w=width;
if(vf->priv->h<=0) vf->priv->h=height;
printf("SwScale scaling %dx%d %s to %dx%d %s \n",
width,height,vo_format_name(outfmt),
vf->priv->w,vf->priv->h,vo_format_name(best));
// free old ctx:
if(vf->priv->ctx) freeSwsContext(vf->priv->ctx);
// new swscaler:
vf->priv->ctx=getSwsContextFromCmdLine(width,height,outfmt,
vf->priv->w,vf->priv->h,best);
if(!vf->priv->ctx){
// error...
printf("Couldn't init SwScaler for this setup\n");
return 0;
}
vf->priv->fmt=best;
return vf_next_config(vf,vf->priv->w,vf->priv->h,d_width,d_height,flags,best);
}
static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
mp_image_t *dmpi;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,vf->priv->fmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
vf->priv->w, vf->priv->h);
vf->priv->ctx->swScale(vf->priv->ctx,mpi->planes,mpi->stride,0,mpi->h,dmpi->planes,dmpi->stride);
if(vf->priv->w==mpi->w && vf->priv->h==mpi->h){
// just conversion, no scaling -> keep postprocessing data
// this way we can apply pp filter to non-yv12 source using scaler
dmpi->qscale=mpi->qscale;
dmpi->qstride=mpi->qstride;
}
vf_next_put_image(vf,dmpi);
}
//===========================================================================//
// supported Input formats: YV12, I420, IYUV, YUY2, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8, Y800
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YUY2:
case IMGFMT_BGR32:
case IMGFMT_BGR24:
case IMGFMT_BGR16:
case IMGFMT_BGR15:
case IMGFMT_RGB32:
case IMGFMT_RGB24:
case IMGFMT_Y800:
return 3; //vf_next_query_format(vf,fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
// TODO: parse args ->
vf->priv->ctx=NULL;
vf->priv->w=
vf->priv->h=-1;
if(args) sscanf(args, "%d:%d",
&vf->priv->w,
&vf->priv->h);
printf("SwScale: %d x %d\n",
vf->priv->w,
vf->priv->h);
return 1;
}
vf_info_t vf_info_scale = {
"software scaling",
"scale",
"A'rpi",
"",
open
};
//===========================================================================//
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