diff options
Diffstat (limited to 'video/filter/vf_mirror.c')
| -rw-r--r-- | video/filter/vf_mirror.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/video/filter/vf_mirror.c b/video/filter/vf_mirror.c new file mode 100644 index 0000000000..b48d9a2ef6 --- /dev/null +++ b/video/filter/vf_mirror.c @@ -0,0 +1,131 @@ +/* + * 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" + + +static void mirror(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,unsigned int fmt){ + int y; + for(y=0;y<h;y++){ + int x; + switch(bpp){ + case 1: + for(x=0;x<w;x++) dst[x]=src[w-x-1]; + break; + case 2: + switch(fmt){ + case IMGFMT_UYVY: { + // packed YUV is tricky. U,V are 32bpp while Y is 16bpp: + int w2=w>>1; + for(x=0;x<w2;x++){ + // TODO: optimize this... + dst[x*4+0]=src[0+(w2-x-1)*4]; + dst[x*4+1]=src[3+(w2-x-1)*4]; + dst[x*4+2]=src[2+(w2-x-1)*4]; + dst[x*4+3]=src[1+(w2-x-1)*4]; + } + break; } + case IMGFMT_YUY2: + case IMGFMT_YVYU: { + // packed YUV is tricky. U,V are 32bpp while Y is 16bpp: + int w2=w>>1; + for(x=0;x<w2;x++){ + // TODO: optimize this... + dst[x*4+0]=src[2+(w2-x-1)*4]; + dst[x*4+1]=src[1+(w2-x-1)*4]; + dst[x*4+2]=src[0+(w2-x-1)*4]; + dst[x*4+3]=src[3+(w2-x-1)*4]; + } + break; } + default: + for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+(w-x-1)*2)); + } + break; + case 3: + for(x=0;x<w;x++){ + dst[x*3+0]=src[0+(w-x-1)*3]; + dst[x*3+1]=src[1+(w-x-1)*3]; + dst[x*3+2]=src[2+(w-x-1)*3]; + } + break; + case 4: + for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+(w-x-1)*4)); + } + src+=srcstride; + dst+=dststride; + } +} + +//===========================================================================// + +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->w, mpi->h); + + if(mpi->flags&MP_IMGFLAG_PLANAR){ + mirror(dmpi->planes[0],mpi->planes[0], + dmpi->stride[0],mpi->stride[0], + dmpi->w,dmpi->h,1,mpi->imgfmt); + mirror(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,mpi->imgfmt); + mirror(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,mpi->imgfmt); + } else { + mirror(dmpi->planes[0],mpi->planes[0], + dmpi->stride[0],mpi->stride[0], + dmpi->w,dmpi->h,dmpi->bpp>>3,mpi->imgfmt); + dmpi->planes[1]=mpi->planes[1]; // passthrough rgb8 palette + } + + return vf_next_put_image(vf,dmpi, pts); +} + +//===========================================================================// + +static int vf_open(vf_instance_t *vf, char *args){ + //vf->config=config; + vf->put_image=put_image; + return 1; +} + +const vf_info_t vf_info_mirror = { + "horizontal mirror", + "mirror", + "Eyck", + "", + vf_open, + NULL +}; + +//===========================================================================// |