mirror of https://github.com/mpv-player/mpv
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "libvo/fastmemcpy.h"
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struct vf_priv_s {
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int interleave;
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int height;
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int width;
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int stridefactor;
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};
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//===========================================================================//
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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int pixel_stride= (width+15)&~15; //FIXME this is ust a guess ... especially for non planar its somewhat bad one
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#if 0
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if(mpi->flags&MP_IMGFLAG_PLANAR)
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pixel_stride= mpi->stride[0];
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else
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pixel_stride= 8*mpi->stride[0] / mpi->bpp;
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#endif
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if(vf->priv->interleave){
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vf->priv->height= 2*height;
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vf->priv->width= width - (pixel_stride/2);
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vf->priv->stridefactor=1;
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}else{
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vf->priv->height= height/2;
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vf->priv->width= width + pixel_stride;
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vf->priv->stridefactor=4;
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}
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//printf("hX %d %d %d\n", vf->priv->width,vf->priv->height,vf->priv->stridefactor);
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return vf_next_config(vf, vf->priv->width, vf->priv->height,
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(d_width*vf->priv->stridefactor)>>1, 2*d_height/vf->priv->stridefactor, flags, outfmt);
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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if(mpi->flags&MP_IMGFLAG_DIRECT){
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// we've used DR, so we're ready...
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return vf_next_put_image(vf,(mp_image_t*)mpi->priv);
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}
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vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
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vf->priv->width, vf->priv->height);
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// set up mpi as a double-stride image of dmpi:
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vf->dmpi->planes[0]=mpi->planes[0];
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vf->dmpi->stride[0]=(mpi->stride[0]*vf->priv->stridefactor)>>1;
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if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){
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vf->dmpi->planes[1]=mpi->planes[1];
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vf->dmpi->stride[1]=(mpi->stride[1]*vf->priv->stridefactor)>>1;
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vf->dmpi->planes[2]=mpi->planes[2];
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vf->dmpi->stride[2]=(mpi->stride[2]*vf->priv->stridefactor)>>1;
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} else
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vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!!
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return vf_next_put_image(vf,vf->dmpi);
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}
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//===========================================================================//
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static void uninit(struct vf_instance_s* vf)
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{
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free(vf->priv);
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}
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static int open(vf_instance_t *vf, char* args){
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vf->config=config;
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vf->put_image=put_image;
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vf->uninit=uninit;
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vf->default_reqs=VFCAP_ACCEPT_STRIDE;
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vf->priv=calloc(1, sizeof(struct vf_priv_s));
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vf->priv->interleave= args && (*args == 'i');
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return 1;
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}
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vf_info_t vf_info_fil = {
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"fast (de)interleaver",
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"fil",
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"Michael Niedermayer",
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"",
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open,
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NULL
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};
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//===========================================================================//
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