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Code Issues Releases Wiki Activity

new video filter to extract a single field using stride arithmetic,

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i.e. without using cpu time


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9073 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker 2003-01-23 16:33:57 +00:00
parent 9c3153404f
commit b35ba6697c
3 changed files with 77 additions and 1 deletions
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2
libmpcodecs/Makefile
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@ -14,7 +14,7 @@ VIDEO_SRCS_NAT=vd_null.c vd_cinepak.c vd_qtrpza.c vd_raw.c vd_msvidc.c vd_fli.c
VIDEO_SRCS_OPT=vd_realvid.c vd_ffmpeg.c vd_dshow.c vd_dmo.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_xanim.c vd_xvid.c vd_libdv.c vd_qtvideo.c
VIDEO_SRCS=dec_video.c vd.c $(VIDEO_SRCS_NAT) $(VIDEO_SRCS_LIB) $(VIDEO_SRCS_OPT)
VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c vf_boxblur.c vf_sab.c vf_smartblur.c vf_perspective.c
VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c vf_boxblur.c vf_sab.c vf_smartblur.c vf_perspective.c vf_field.c
ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c ve_xvid.c ve_qtvideo.c
NATIVE_SRCS=native/RTjpegN.c native/cinepak.c native/cyuv.c native/fli.c native/minilzo.c native/msvidc.c native/nuppelvideo.c native/qtrle.c native/qtrpza.c native/qtsmc.c native/roqav.c native/xa_gsm.c native/svq1.c

2
libmpcodecs/vf.c
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@ -52,6 +52,7 @@ extern vf_info_t vf_info_boxblur;
extern vf_info_t vf_info_sab;
extern vf_info_t vf_info_smartblur;
extern vf_info_t vf_info_perspective;
extern vf_info_t vf_info_field;
char** vo_plugin_args=(char**) NULL;
@ -97,6 +98,7 @@ static vf_info_t* filter_list[]={
&vf_info_sab,
&vf_info_smartblur,
&vf_info_perspective,
&vf_info_field,
NULL
};

74
libmpcodecs/vf_field.c Normal file
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@ -0,0 +1,74 @@
#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;
mp_image_t *dmpi;
};
//===========================================================================//
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->priv->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->priv->dmpi->planes[0]=mpi->planes[0]+mpi->stride[0]*vf->priv->field;
vf->priv->dmpi->stride[0]=2*mpi->stride[0];
if(vf->priv->dmpi->flags&MP_IMGFLAG_PLANAR){
vf->priv->dmpi->planes[1]=mpi->planes[1]+
mpi->stride[1]*vf->priv->field;
vf->priv->dmpi->stride[1]=2*mpi->stride[1];
vf->priv->dmpi->planes[2]=mpi->planes[2]+
mpi->stride[2]*vf->priv->field;
vf->priv->dmpi->stride[2]=2*mpi->stride[2];
} else
vf->priv->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
return vf_next_put_image(vf,vf->priv->dmpi);
}
//===========================================================================//
// FIXME - do we need to free dmpi on uninit?
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
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
};
//===========================================================================//