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colorspace conversion support 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5524 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-04-07 21:33:42 +00:00
parent abd870166d
commit 5679435133
1 changed files with 56 additions and 2 deletions
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58
libmpcodecs/vf_scale.c
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@ -6,6 +6,7 @@
#include "../config.h"
#include "../mp_msg.h"
#include "../libvo/img_format.h"
#include "../mp_image.h"
#include "vf.h"
@ -14,25 +15,58 @@
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));
// new swscaler:
vf->priv->ctx=getSwsContextFromCmdLine(width,height,outfmt,
vf->priv->w,vf->priv->h,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,outfmt);
}
@ -40,7 +74,7 @@ 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,mpi->imgfmt,
dmpi=vf_get_image(vf->next,vf->priv->fmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
vf->priv->w, vf->priv->h);
@ -51,6 +85,26 @@ static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
//===========================================================================//
// 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;