diff options
Diffstat (limited to 'libavfilter/libmpcodecs/vf_fil.c')
-rw-r--r-- | libavfilter/libmpcodecs/vf_fil.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_fil.c b/libavfilter/libmpcodecs/vf_fil.c new file mode 100644 index 0000000..7df7eb0 --- /dev/null +++ b/libavfilter/libmpcodecs/vf_fil.c @@ -0,0 +1,116 @@ +/* + * 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" + +struct vf_priv_s { + int interleave; + int height; + int width; + int stridefactor; +}; + +//===========================================================================// + +static int config(struct vf_instance *vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + int pixel_stride= (width+15)&~15; //FIXME this is ust a guess ... especially for non planar its somewhat bad one + +#if 0 + if(mpi->flags&MP_IMGFLAG_PLANAR) + pixel_stride= mpi->stride[0]; + else + pixel_stride= 8*mpi->stride[0] / mpi->bpp; + +#endif + + if(vf->priv->interleave){ + vf->priv->height= 2*height; + vf->priv->width= width - (pixel_stride/2); + vf->priv->stridefactor=1; + }else{ + vf->priv->height= height/2; + vf->priv->width= width + pixel_stride; + vf->priv->stridefactor=4; + } +//printf("hX %d %d %d\n", vf->priv->width,vf->priv->height,vf->priv->stridefactor); + + return vf_next_config(vf, vf->priv->width, vf->priv->height, + (d_width*vf->priv->stridefactor)>>1, 2*d_height/vf->priv->stridefactor, flags, outfmt); +} + +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... + 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, + vf->priv->width, vf->priv->height); + + // set up mpi as a double-stride image of dmpi: + vf->dmpi->planes[0]=mpi->planes[0]; + vf->dmpi->stride[0]=(mpi->stride[0]*vf->priv->stridefactor)>>1; + if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){ + vf->dmpi->planes[1]=mpi->planes[1]; + vf->dmpi->stride[1]=(mpi->stride[1]*vf->priv->stridefactor)>>1; + vf->dmpi->planes[2]=mpi->planes[2]; + vf->dmpi->stride[2]=(mpi->stride[2]*vf->priv->stridefactor)>>1; + } else + vf->dmpi->planes[1]=mpi->planes[1]; // passthru bgr8 palette!!! + + return vf_next_put_image(vf,vf->dmpi, pts); +} + +//===========================================================================// + +static void uninit(struct vf_instance *vf) +{ + free(vf->priv); +} + +static int vf_open(vf_instance_t *vf, char *args){ + vf->config=config; + vf->put_image=put_image; + vf->uninit=uninit; + vf->default_reqs=VFCAP_ACCEPT_STRIDE; + vf->priv=calloc(1, sizeof(struct vf_priv_s)); + vf->priv->interleave= args && (*args == 'i'); + return 1; +} + +const vf_info_t vf_info_fil = { + "fast (de)interleaver", + "fil", + "Michael Niedermayer", + "", + vf_open, + NULL +}; + +//===========================================================================// |