diff options
Diffstat (limited to 'libavfilter/libmpcodecs/vf_yvu9.c')
-rw-r--r-- | libavfilter/libmpcodecs/vf_yvu9.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_yvu9.c b/libavfilter/libmpcodecs/vf_yvu9.c new file mode 100644 index 0000000..1f74261 --- /dev/null +++ b/libavfilter/libmpcodecs/vf_yvu9.c @@ -0,0 +1,105 @@ +/* + * 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 "help_mp.h" + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" + +#include "libvo/fastmemcpy.h" + +//===========================================================================// + +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_next_query_format(vf,IMGFMT_YV12)<=0){ + mp_msg(MSGT_VFILTER, MSGL_WARN, MSGTR_MPCODECS_WarnNextFilterDoesntSupport, "YVU9"); + return 0; + } + + return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YV12); +} + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ + mp_image_t *dmpi; + int y,w,h; + + // hope we'll get DR buffer: + dmpi=vf_get_image(vf->next,IMGFMT_YV12, + MP_IMGTYPE_TEMP, 0/*MP_IMGFLAG_ACCEPT_STRIDE*/, + mpi->w, mpi->h); + + for(y=0;y<mpi->h;y++) + fast_memcpy(dmpi->planes[0]+dmpi->stride[0]*y, + mpi->planes[0]+mpi->stride[0]*y, + mpi->w); + + w=mpi->w/4; h=mpi->h/2; + for(y=0;y<h;y++){ + unsigned char* s=mpi->planes[1]+mpi->stride[1]*(y>>1); + unsigned char* d=dmpi->planes[1]+dmpi->stride[1]*y; + int x; + for(x=0;x<w;x++) d[2*x]=d[2*x+1]=s[x]; + } + for(y=0;y<h;y++){ + unsigned char* s=mpi->planes[2]+mpi->stride[2]*(y>>1); + unsigned char* d=dmpi->planes[2]+dmpi->stride[2]*y; + int x; + for(x=0;x<w;x++) d[2*x]=d[2*x+1]=s[x]; + } + + vf_clone_mpi_attributes(dmpi, mpi); + + return vf_next_put_image(vf,dmpi, pts); +} + +//===========================================================================// + +static int query_format(struct vf_instance *vf, unsigned int fmt){ + if (fmt == IMGFMT_YVU9 || fmt == IMGFMT_IF09) + return vf_next_query_format(vf,IMGFMT_YV12) & (~VFCAP_CSP_SUPPORTED_BY_HW); + 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; + return 1; +} + +const vf_info_t vf_info_yvu9 = { + "fast YVU9->YV12 conversion", + "yvu9", + "alex", + "", + vf_open, + NULL +}; + +//===========================================================================// |