diff options
Diffstat (limited to 'libavfilter/libmpcodecs/vf_harddup.c')
-rw-r--r-- | libavfilter/libmpcodecs/vf_harddup.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_harddup.c b/libavfilter/libmpcodecs/vf_harddup.c new file mode 100644 index 0000000..5b6c2ff --- /dev/null +++ b/libavfilter/libmpcodecs/vf_harddup.c @@ -0,0 +1,92 @@ +/* + * 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 "img_format.h" +#include "mp_image.h" +#include "vf.h" + +struct vf_priv_s { + mp_image_t *last_mpi; +}; + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) +{ + mp_image_t *dmpi; + + vf->priv->last_mpi = mpi; + + dmpi = vf_get_image(vf->next, mpi->imgfmt, + MP_IMGTYPE_EXPORT, 0, mpi->width, mpi->height); + + dmpi->planes[0] = mpi->planes[0]; + dmpi->stride[0] = mpi->stride[0]; + if (dmpi->flags&MP_IMGFLAG_PLANAR) { + dmpi->planes[1] = mpi->planes[1]; + dmpi->stride[1] = mpi->stride[1]; + dmpi->planes[2] = mpi->planes[2]; + dmpi->stride[2] = mpi->stride[2]; + } + + return vf_next_put_image(vf, dmpi, pts); +} + +static int control(struct vf_instance *vf, int request, void* data) +{ + switch (request) { + case VFCTRL_DUPLICATE_FRAME: + if (!vf->priv->last_mpi) break; + // This is a huge hack. We assume nothing + // has been called earlier in the filter chain + // since the last put_image. This is reasonable + // because we're handling a duplicate frame! + if (put_image(vf, vf->priv->last_mpi, MP_NOPTS_VALUE)) + return CONTROL_TRUE; + break; + } + return vf_next_control(vf, request, data); +} + +static void uninit(struct vf_instance *vf) +{ + free(vf->priv); +} + +static int vf_open(vf_instance_t *vf, char *args) +{ + vf->put_image = put_image; + vf->control = control; + vf->uninit = uninit; + vf->priv = calloc(1, sizeof(struct vf_priv_s)); + return 1; +} + +const vf_info_t vf_info_harddup = { + "resubmit duplicate frames for encoding", + "harddup", + "Rich Felker", + "", + vf_open, + NULL +}; |