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- /*
- * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <inttypes.h>
- #include <assert.h>
- #include "mp_msg.h"
- #include "img_format.h"
- #include "mp_image.h"
- #include "vf.h"
- #include "libvo/fastmemcpy.h"
- //===========================================================================//
- typedef struct FilterParam{
- int interleave;
- int swap;
- }FilterParam;
- struct vf_priv_s {
- FilterParam lumaParam;
- FilterParam chromaParam;
- };
- /***************************************************************************/
- static void interleave(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int interleave, int swap){
- const int a= swap;
- const int b= 1-a;
- const int m= h>>1;
- int y;
- switch(interleave){
- case -1:
- for(y=0; y < m; y++){
- fast_memcpy(dst + dstStride* y , src + srcStride*(y*2 + a), w);
- fast_memcpy(dst + dstStride*(y + m), src + srcStride*(y*2 + b), w);
- }
- break;
- case 0:
- for(y=0; y < m; y++){
- fast_memcpy(dst + dstStride* y*2 , src + srcStride*(y*2 + a), w);
- fast_memcpy(dst + dstStride*(y*2+1), src + srcStride*(y*2 + b), w);
- }
- break;
- case 1:
- for(y=0; y < m; y++){
- fast_memcpy(dst + dstStride*(y*2+a), src + srcStride* y , w);
- fast_memcpy(dst + dstStride*(y*2+b), src + srcStride*(y + m), w);
- }
- break;
- }
- }
- static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
- int w;
- FilterParam *luma = &vf->priv->lumaParam;
- FilterParam *chroma= &vf->priv->chromaParam;
- mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt,
- MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
- mpi->w,mpi->h);
- if(mpi->flags&MP_IMGFLAG_PLANAR)
- w= mpi->w;
- else
- w= mpi->w * mpi->bpp/8;
- interleave(dmpi->planes[0], mpi->planes[0],
- w, mpi->h, dmpi->stride[0], mpi->stride[0], luma->interleave, luma->swap);
- if(mpi->flags&MP_IMGFLAG_PLANAR){
- int cw= mpi->w >> mpi->chroma_x_shift;
- int ch= mpi->h >> mpi->chroma_y_shift;
- interleave(dmpi->planes[1], mpi->planes[1], cw,ch,
- dmpi->stride[1], mpi->stride[1], chroma->interleave, luma->swap);
- interleave(dmpi->planes[2], mpi->planes[2], cw,ch,
- dmpi->stride[2], mpi->stride[2], chroma->interleave, luma->swap);
- }
- return vf_next_put_image(vf,dmpi, pts);
- }
- //===========================================================================//
- static void parse(FilterParam *fp, char* args){
- char *pos;
- char *max= strchr(args, ':');
- if(!max) max= args + strlen(args);
- pos= strchr(args, 's');
- if(pos && pos<max) fp->swap=1;
- pos= strchr(args, 'i');
- if(pos && pos<max) fp->interleave=1;
- pos= strchr(args, 'd');
- if(pos && pos<max) fp->interleave=-1;
- }
- static int vf_open(vf_instance_t *vf, char *args){
- vf->put_image=put_image;
- // vf->get_image=get_image;
- vf->priv=malloc(sizeof(struct vf_priv_s));
- memset(vf->priv, 0, sizeof(struct vf_priv_s));
- if(args)
- {
- char *arg2= strchr(args,':');
- if(arg2) parse(&vf->priv->chromaParam, arg2+1);
- parse(&vf->priv->lumaParam, args);
- }
- return 1;
- }
- const vf_info_t vf_info_il = {
- "(de)interleave",
- "il",
- "Michael Niedermayer",
- "",
- vf_open,
- NULL
- };
- //===========================================================================//
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