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- /*
- * 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 "config.h"
- #include "mp_msg.h"
- #include "img_format.h"
- #include "mp_image.h"
- #include "vf.h"
- struct vf_priv_s {
- int direction;
- };
- static void rotate(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,int dir){
- int y;
- if(dir&1){
- src+=srcstride*(w-1);
- srcstride*=-1;
- }
- if(dir&2){
- dst+=dststride*(h-1);
- dststride*=-1;
- }
- for(y=0;y<h;y++){
- int x;
- switch(bpp){
- case 1:
- for(x=0;x<w;x++) dst[x]=src[y+x*srcstride];
- break;
- case 2:
- for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+y*2+x*srcstride));
- break;
- case 3:
- for(x=0;x<w;x++){
- dst[x*3+0]=src[0+y*3+x*srcstride];
- dst[x*3+1]=src[1+y*3+x*srcstride];
- dst[x*3+2]=src[2+y*3+x*srcstride];
- }
- break;
- case 4:
- for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+y*4+x*srcstride));
- }
- dst+=dststride;
- }
- }
- //===========================================================================//
- static int config(struct vf_instance *vf,
- int width, int height, int d_width, int d_height,
- unsigned int flags, unsigned int outfmt){
- if (vf->priv->direction & 4) {
- if (width<height) vf->priv->direction&=3;
- }
- if (vf->priv->direction & 4){
- vf->put_image=vf_next_put_image; // passthru mode!
- if (vf->next->draw_slice) vf->draw_slice=vf_next_draw_slice;
- /* FIXME: this should be in an other procedure in vf.c; that should always check
- whether the filter after the passthrough one still (not)supports slices */
- return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
- }
- return vf_next_config(vf,height,width,d_height,d_width,flags,outfmt);
- }
- static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
- mp_image_t *dmpi;
- // hope we'll get DR buffer:
- dmpi=vf_get_image(vf->next,mpi->imgfmt,
- MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
- mpi->h, mpi->w);
- if(mpi->flags&MP_IMGFLAG_PLANAR){
- rotate(dmpi->planes[0],mpi->planes[0],
- dmpi->stride[0],mpi->stride[0],
- dmpi->w,dmpi->h,1,vf->priv->direction);
- rotate(dmpi->planes[1],mpi->planes[1],
- dmpi->stride[1],mpi->stride[1],
- dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction);
- rotate(dmpi->planes[2],mpi->planes[2],
- dmpi->stride[2],mpi->stride[2],
- dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction);
- } else {
- rotate(dmpi->planes[0],mpi->planes[0],
- dmpi->stride[0],mpi->stride[0],
- dmpi->w,dmpi->h,dmpi->bpp>>3,vf->priv->direction);
- dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
- }
- return vf_next_put_image(vf,dmpi, pts);
- }
- //===========================================================================//
- static int query_format(struct vf_instance *vf, unsigned int fmt){
- if(IMGFMT_IS_RGB(fmt) || IMGFMT_IS_BGR(fmt)) return vf_next_query_format(vf, fmt);
- // we can support only symmetric (chroma_x_shift==chroma_y_shift) YUV formats:
- switch(fmt) {
- case IMGFMT_YV12:
- case IMGFMT_I420:
- case IMGFMT_IYUV:
- case IMGFMT_YVU9:
- // case IMGFMT_IF09:
- case IMGFMT_Y8:
- case IMGFMT_Y800:
- case IMGFMT_444P:
- return vf_next_query_format(vf, fmt);
- }
- return 0;
- }
- static int vf_open(vf_instance_t *vf, char *args){
- vf->config=config;
- vf->put_image=put_image;
- vf->query_format=query_format;
- vf->priv=malloc(sizeof(struct vf_priv_s));
- vf->priv->direction=args?atoi(args):0;
- return 1;
- }
- const vf_info_t vf_info_rotate = {
- "rotate",
- "rotate",
- "A'rpi",
- "",
- vf_open,
- NULL
- };
- //===========================================================================//
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