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halfpack now takes an optional argument, field, which tells it to keep

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only even lines (if 0) or only odd lines (if 1) rather than averaging
pairs of lines. this may be useful for slightly improving performance
or for dirty deinterlacing.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8871 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker 2003-01-10 14:12:07 +00:00
parent 6246706f8d
commit 4ca05e0e33
1 changed files with 24 additions and 3 deletions
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27
libmpcodecs/vf_halfpack.c
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@ -14,6 +14,9 @@
#include "../libvo/fastmemcpy.h"
#include "../postproc/rgb2rgb.h"
struct vf_priv_s {
int field;
};
#ifdef HAVE_MMX
static void halfpack_MMX(unsigned char *dst, unsigned char *src[3],
@ -149,9 +152,17 @@ static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w, mpi->h/2);
halfpack(dmpi->planes[0], mpi->planes,
dmpi->stride[0], mpi->stride,
mpi->w, mpi->h);
switch(vf->priv->field) {
case 0:
case 1:
yuv422ptoyuy2(mpi->planes[0] + mpi->stride[0]*vf->priv->field,
mpi->planes[1], mpi->planes[2], dmpi->planes[0],
mpi->w, mpi->h/2, mpi->stride[0]*2, mpi->stride[1], dmpi->stride[0]);
break;
default:
halfpack(dmpi->planes[0], mpi->planes, dmpi->stride[0],
mpi->stride, mpi->w, mpi->h);
}
return vf_next_put_image(vf,dmpi);
}
@ -177,12 +188,22 @@ static int query_format(struct vf_instance_s* vf, unsigned int fmt)
return 0;
}
static void uninit(struct vf_instance_s* vf)
{
free(vf->priv);
}
static int open(vf_instance_t *vf, char* args)
{
vf->config=config;
vf->query_format=query_format;
vf->put_image=put_image;
vf->uninit=uninit;
vf->priv = calloc(1, sizeof (struct vf_priv_s));
vf->priv->field = 2;
if (args) sscanf(args, "%d", &vf->priv->field);
halfpack = halfpack_C;
#ifdef HAVE_MMX
if(gCpuCaps.hasMMX) halfpack = halfpack_MMX;