diff options
Diffstat (limited to 'libmpcodecs/vf_cropdetect.c')
| -rw-r--r-- | libmpcodecs/vf_cropdetect.c | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/libmpcodecs/vf_cropdetect.c b/libmpcodecs/vf_cropdetect.c deleted file mode 100644 index 2401db19d4..0000000000 --- a/libmpcodecs/vf_cropdetect.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * 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 x1,y1,x2,y2; - int limit; - int round; - int reset_count; - int fno; -}; - -static int checkline(unsigned char* src,int stride,int len,int bpp){ - int total=0; - int div=len; - switch(bpp){ - case 1: - while(--len>=0){ - total+=src[0]; src+=stride; - } - break; - case 3: - case 4: - while(--len>=0){ - total+=src[0]+src[1]+src[2]; src+=stride; - } - div*=3; - break; - } - total/=div; -// printf("total=%d\n",total); - return total; -} - -//===========================================================================// - -static int config(struct vf_instance *vf, - int width, int height, int d_width, int d_height, - unsigned int flags, unsigned int outfmt){ - vf->priv->x1=width - 1; - vf->priv->y1=height - 1; - vf->priv->x2=0; - vf->priv->y2=0; - vf->priv->fno=-2; - return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); -} - -static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ - mp_image_t *dmpi; - int bpp=mpi->bpp/8; - int w,h,x,y,shrink_by; - - // hope we'll get DR buffer: - dmpi=vf_get_image(vf->next,mpi->imgfmt, - MP_IMGTYPE_EXPORT, 0, - mpi->w, mpi->h); - - dmpi->planes[0]=mpi->planes[0]; - dmpi->planes[1]=mpi->planes[1]; - dmpi->planes[2]=mpi->planes[2]; - dmpi->stride[0]=mpi->stride[0]; - dmpi->stride[1]=mpi->stride[1]; - dmpi->stride[2]=mpi->stride[2]; - dmpi->width=mpi->width; - dmpi->height=mpi->height; - -if(++vf->priv->fno>0){ // ignore first 2 frames - they may be empty - - // Reset the crop area every reset_count frames, if reset_count is > 0 - if(vf->priv->reset_count > 0 && vf->priv->fno > vf->priv->reset_count){ - vf->priv->x1=mpi->w-1; - vf->priv->y1=mpi->h-1; - vf->priv->x2=0; - vf->priv->y2=0; - vf->priv->fno=1; - } - - for(y=0;y<vf->priv->y1;y++){ - if(checkline(mpi->planes[0]+mpi->stride[0]*y,bpp,mpi->w,bpp)>vf->priv->limit){ - vf->priv->y1=y; - break; - } - } - - for(y=mpi->h-1;y>vf->priv->y2;y--){ - if(checkline(mpi->planes[0]+mpi->stride[0]*y,bpp,mpi->w,bpp)>vf->priv->limit){ - vf->priv->y2=y; - break; - } - } - - for(y=0;y<vf->priv->x1;y++){ - if(checkline(mpi->planes[0]+bpp*y,mpi->stride[0],mpi->h,bpp)>vf->priv->limit){ - vf->priv->x1=y; - break; - } - } - - for(y=mpi->w-1;y>vf->priv->x2;y--){ - if(checkline(mpi->planes[0]+bpp*y,mpi->stride[0],mpi->h,bpp)>vf->priv->limit){ - vf->priv->x2=y; - break; - } - } - - // round x and y (up), important for yuv colorspaces - // make sure they stay rounded! - x=(vf->priv->x1+1)&(~1); - y=(vf->priv->y1+1)&(~1); - - w = vf->priv->x2 - x + 1; - h = vf->priv->y2 - y + 1; - - // w and h must be divisible by 2 as well because of yuv - // colorspace problems. - if (vf->priv->round <= 1) - vf->priv->round = 16; - if (vf->priv->round % 2) - vf->priv->round *= 2; - - shrink_by = w % vf->priv->round; - w -= shrink_by; - x += (shrink_by / 2 + 1) & ~1; - - shrink_by = h % vf->priv->round; - h -= shrink_by; - y += (shrink_by / 2 + 1) & ~1; - - mp_tmsg(MSGT_VFILTER, MSGL_INFO, "[CROP] Crop area: X: %d..%d Y: %d..%d (-vf crop=%d:%d:%d:%d).\n", - vf->priv->x1,vf->priv->x2, - vf->priv->y1,vf->priv->y2, - w,h,x,y); - - -} - - return vf_next_put_image(vf,dmpi, pts); -} - -static int query_format(struct vf_instance *vf, unsigned int fmt) { - switch(fmt) { - // the default limit value works only right with YV12 right now. - case IMGFMT_YV12: - 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->limit=24; // should be option - vf->priv->round = 0; - vf->priv->reset_count = 0; - if(args) sscanf(args, "%d:%d:%d", - &vf->priv->limit, - &vf->priv->round, - &vf->priv->reset_count); - return 1; -} - -const vf_info_t vf_info_cropdetect = { - "autodetect crop size", - "cropdetect", - "A'rpi", - "", - vf_open, - NULL -}; - -//===========================================================================// |