lavfi: remove softskip libmpcodecs wrapper

It is supposed to be used with mencoder only and does
nothing when used with ffmpeg.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

doc/filters.texi

@@ -3639,7 +3639,6 @@ The list of the currently supported filters follows:
 @item qp
 @item sab
 @item softpulldown
-@item softskip
 @item spp
 @item telecine
 @item tinterlace

libavfilter/Makefile

@@ -201,7 +201,6 @@ OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_pullup.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_qp.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_sab.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_softpulldown.o
-OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_softskip.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_spp.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_stereo3d.o
 OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/vf_telecine.o

libavfilter/libmpcodecs/vf_softskip.c

-/*
- * 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 {
-    int skipflag;
-};
-
-static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
-{
-    mp_image_t *dmpi;
-
-    if (vf->priv->skipflag)
-        return vf->priv->skipflag = 0;
-
-    dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
-        MP_IMGTYPE_EXPORT, 0, mpi->width, mpi->height);
-    ff_vf_clone_mpi_attributes(dmpi, mpi);
-
-    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 ff_vf_next_put_image(vf, dmpi, pts);
-}
-
-static int control(struct vf_instance *vf, int request, void* data)
-{
-    switch (request) {
-    case VFCTRL_SKIP_NEXT_FRAME:
-        vf->priv->skipflag = 1;
-        return CONTROL_TRUE;
-    }
-    return ff_vf_next_control(vf, request, data);
-}
-
-#if 0
-static int query_format(struct vf_instance *vf, unsigned int fmt)
-{
-    /* FIXME - figure out which other formats work */
-    switch (fmt) {
-    case IMGFMT_YV12:
-    case IMGFMT_IYUV:
-    case IMGFMT_I420:
-        return ff_vf_next_query_format(vf, fmt);
-    }
-    return 0;
-}
-#endif
-
-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 ff_vf_info_softskip = {
-    "soft (post-filter) frame skipping for encoding",
-    "softskip",
-    "Rich Felker",
-    "",
-    vf_open,
-    NULL
-};

libavfilter/vf_mp.c

@@ -145,7 +145,6 @@ extern const vf_info_t ff_vf_info_pullup;
 extern const vf_info_t ff_vf_info_qp;
 extern const vf_info_t ff_vf_info_sab;
 extern const vf_info_t ff_vf_info_softpulldown;
-extern const vf_info_t ff_vf_info_softskip;
 extern const vf_info_t ff_vf_info_spp;
 extern const vf_info_t ff_vf_info_stereo3d;
 extern const vf_info_t ff_vf_info_telecine;
@@ -178,7 +177,6 @@ static const vf_info_t* const filters[]={
     &ff_vf_info_qp,
     &ff_vf_info_sab,
     &ff_vf_info_softpulldown,
-    &ff_vf_info_softskip,
     &ff_vf_info_spp,
     &ff_vf_info_stereo3d,
     &ff_vf_info_telecine,