diff options
Diffstat (limited to 'video/filter/vf_flip.c')
-rw-r--r-- | video/filter/vf_flip.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/video/filter/vf_flip.c b/video/filter/vf_flip.c new file mode 100644 index 0000000000..e8660ceb51 --- /dev/null +++ b/video/filter/vf_flip.c @@ -0,0 +1,110 @@ +/* + * 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 "config.h" +#include "mp_msg.h" + +#include "mp_image.h" +#include "vf.h" + +#include "libvo/video_out.h" + +//===========================================================================// + +static int config(struct vf_instance *vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + flags&=~VOFLAG_FLIPPING; // remove the FLIP flag + return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); +} + +static void get_image(struct vf_instance *vf, mp_image_t *mpi){ + if(mpi->flags&MP_IMGFLAG_ACCEPT_STRIDE){ + // try full DR ! + vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, + mpi->type, mpi->flags, mpi->width, mpi->height); + // set up mpi as a upside-down image of dmpi: + mpi->planes[0]=vf->dmpi->planes[0]+ + vf->dmpi->stride[0]*(vf->dmpi->height-1); + mpi->stride[0]=-vf->dmpi->stride[0]; + if(mpi->flags&MP_IMGFLAG_PLANAR){ + mpi->planes[1]=vf->dmpi->planes[1]+ + vf->dmpi->stride[1]*((vf->dmpi->height>>mpi->chroma_y_shift)-1); + mpi->stride[1]=-vf->dmpi->stride[1]; + mpi->planes[2]=vf->dmpi->planes[2]+ + vf->dmpi->stride[2]*((vf->dmpi->height>>mpi->chroma_y_shift)-1); + mpi->stride[2]=-vf->dmpi->stride[2]; + } + mpi->flags|=MP_IMGFLAG_DIRECT; + mpi->priv=(void*)vf->dmpi; + } +} + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ + if(mpi->flags&MP_IMGFLAG_DIRECT){ + // we've used DR, so we're ready... + if(!(mpi->flags&MP_IMGFLAG_PLANAR)) + ((mp_image_t*)mpi->priv)->planes[1] = mpi->planes[1]; // passthrough rgb8 palette + return vf_next_put_image(vf,(mp_image_t*)mpi->priv, pts); + } + + vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, + MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE, + mpi->width, mpi->height); + + // set up mpi as a upside-down image of dmpi: + vf->dmpi->planes[0]=mpi->planes[0]+ + mpi->stride[0]*(mpi->height-1); + vf->dmpi->stride[0]=-mpi->stride[0]; + if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){ + vf->dmpi->planes[1]=mpi->planes[1]+ + mpi->stride[1]*((mpi->height>>mpi->chroma_y_shift)-1); + vf->dmpi->stride[1]=-mpi->stride[1]; + vf->dmpi->planes[2]=mpi->planes[2]+ + mpi->stride[2]*((mpi->height>>mpi->chroma_y_shift)-1); + vf->dmpi->stride[2]=-mpi->stride[2]; + } else + vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!! + + return vf_next_put_image(vf,vf->dmpi, pts); +} + +//===========================================================================// + +static int vf_open(vf_instance_t *vf, char *args){ + vf->config=config; + vf->get_image=get_image; + vf->put_image=put_image; + vf->default_reqs=VFCAP_ACCEPT_STRIDE; + return 1; +} + +const vf_info_t vf_info_flip = { + "flip image upside-down", + "flip", + "A'rpi", + "", + vf_open, + NULL +}; + +//===========================================================================// |