/* * 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" #include "libvo/fastmemcpy.h" struct vf_priv_s {    int state;    long long in;    long long out;}; static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){    mp_image_t *dmpi;    int ret = 0;    int flags = mpi->fields;    int state = vf->priv->state;     dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,                        MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |                        MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);     vf->priv->in++;     if ((state == 0 &&         !(flags & MP_IMGFIELD_TOP_FIRST)) ||        (state == 1 &&         flags & MP_IMGFIELD_TOP_FIRST)) {        ff_mp_msg(MSGT_VFILTER, MSGL_WARN,               "softpulldown: Unexpected field flags: state=%d top_field_first=%d repeat_first_field=%d\n",               state,               (flags & MP_IMGFIELD_TOP_FIRST) != 0,               (flags & MP_IMGFIELD_REPEAT_FIRST) != 0);        state ^= 1;    }     if (state == 0) {        ret = ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE);        vf->priv->out++;        if (flags & MP_IMGFIELD_REPEAT_FIRST) {            my_memcpy_pic(dmpi->planes[0],                       mpi->planes[0], mpi->w, mpi->h/2,                       dmpi->stride[0]*2, mpi->stride[0]*2);            if (mpi->flags & MP_IMGFLAG_PLANAR) {                my_memcpy_pic(dmpi->planes[1],                              mpi->planes[1],                              mpi->chroma_width,                              mpi->chroma_height/2,                              dmpi->stride[1]*2,                              mpi->stride[1]*2);                my_memcpy_pic(dmpi->planes[2],                              mpi->planes[2],                              mpi->chroma_width,                              mpi->chroma_height/2,                              dmpi->stride[2]*2,                              mpi->stride[2]*2);            }            state=1;        }    } else {        my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],                      mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,                      dmpi->stride[0]*2, mpi->stride[0]*2);        if (mpi->flags & MP_IMGFLAG_PLANAR) {            my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],                          mpi->planes[1]+mpi->stride[1],                          mpi->chroma_width, mpi->chroma_height/2,                          dmpi->stride[1]*2, mpi->stride[1]*2);            my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],                          mpi->planes[2]+mpi->stride[2],                          mpi->chroma_width, mpi->chroma_height/2,                          dmpi->stride[2]*2, mpi->stride[2]*2);        }        ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);        vf->priv->out++;        if (flags & MP_IMGFIELD_REPEAT_FIRST) {            ret |= ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE);            vf->priv->out++;            state=0;        } else {            my_memcpy_pic(dmpi->planes[0],                          mpi->planes[0], mpi->w, mpi->h/2,                          dmpi->stride[0]*2, mpi->stride[0]*2);            if (mpi->flags & MP_IMGFLAG_PLANAR) {                my_memcpy_pic(dmpi->planes[1],                              mpi->planes[1],                              mpi->chroma_width,                              mpi->chroma_height/2,                              dmpi->stride[1]*2,                              mpi->stride[1]*2);                my_memcpy_pic(dmpi->planes[2],                              mpi->planes[2],                              mpi->chroma_width,                              mpi->chroma_height/2,                              dmpi->stride[2]*2,                              mpi->stride[2]*2);            }        }    }     vf->priv->state = state;     return ret;} static int config(struct vf_instance *vf,    int width, int height, int d_width, int d_height,    unsigned int flags, unsigned int outfmt){    return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);} static void uninit(struct vf_instance *vf){    ff_mp_msg(MSGT_VFILTER, MSGL_INFO, "softpulldown: %lld frames in, %lld frames out\n", vf->priv->in, vf->priv->out);    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->state = 0;    return 1;} const vf_info_t ff_vf_info_softpulldown = {    "mpeg2 soft 3:2 pulldown",    "softpulldown",    "Tobias Diedrich <ranma+mplayer@tdiedrich.de>",    "",    vf_open,    NULL};