diff options
Diffstat (limited to 'libavfilter/libmpcodecs/vf_yuvcsp.c')
-rw-r--r-- | libavfilter/libmpcodecs/vf_yuvcsp.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_yuvcsp.c b/libavfilter/libmpcodecs/vf_yuvcsp.c new file mode 100644 index 0000000..102ce14 --- /dev/null +++ b/libavfilter/libmpcodecs/vf_yuvcsp.c @@ -0,0 +1,120 @@ +/* + * 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 csp; +}; + +//===========================================================================// + +static int config(struct vf_instance *vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt); +} + +static inline int clamp_y(int x){ + return (x > 235) ? 235 : (x < 16) ? 16 : x; +} + +static inline int clamp_c(int x){ + return (x > 240) ? 240 : (x < 16) ? 16 : x; +} + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ + int i,j; + uint8_t *y_in, *cb_in, *cr_in; + uint8_t *y_out, *cb_out, *cr_out; + + vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, + MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, + mpi->width, mpi->height); + + y_in = mpi->planes[0]; + cb_in = mpi->planes[1]; + cr_in = mpi->planes[2]; + + y_out = vf->dmpi->planes[0]; + cb_out = vf->dmpi->planes[1]; + cr_out = vf->dmpi->planes[2]; + + for (i = 0; i < mpi->height; i++) + for (j = 0; j < mpi->width; j++) + y_out[i*vf->dmpi->stride[0]+j] = clamp_y(y_in[i*mpi->stride[0]+j]); + + for (i = 0; i < mpi->chroma_height; i++) + for (j = 0; j < mpi->chroma_width; j++) + { + cb_out[i*vf->dmpi->stride[1]+j] = clamp_c(cb_in[i*mpi->stride[1]+j]); + cr_out[i*vf->dmpi->stride[2]+j] = clamp_c(cr_in[i*mpi->stride[2]+j]); + } + + return vf_next_put_image(vf,vf->dmpi, pts); +} + +//===========================================================================// + +/* +static void uninit(struct vf_instance *vf){ + free(vf->priv); +} +*/ + +static int query_format(struct vf_instance *vf, unsigned int fmt){ + switch(fmt){ + case IMGFMT_YV12: + case IMGFMT_I420: + case IMGFMT_IYUV: + return 1; + } + return 0; +} + +static int vf_open(vf_instance_t *vf, char *args){ + vf->config=config; + vf->put_image=put_image; +// vf->uninit=uninit; + vf->query_format=query_format; +// vf->priv=calloc(1, sizeof(struct vf_priv_s)); +// if (args) +// vf->priv->csp = atoi(args); + return 1; +} + +const vf_info_t vf_info_yuvcsp = { + "yuv colorspace converter", + "yuvcsp", + "Alex Beregszaszi", + "", + vf_open, + NULL +}; + +//===========================================================================// |