| 1 | /* |
| 2 | * This file is part of MPlayer. |
| 3 | * |
| 4 | * MPlayer is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * MPlayer is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with MPlayer; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "mp_msg.h" |
| 25 | |
| 26 | #include "img_format.h" |
| 27 | #include "mp_image.h" |
| 28 | #include "vf.h" |
| 29 | |
| 30 | #include "libvo/fastmemcpy.h" |
| 31 | |
| 32 | struct vf_priv_s { |
| 33 | int state; |
| 34 | long long in; |
| 35 | long long out; |
| 36 | }; |
| 37 | |
| 38 | static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) |
| 39 | { |
| 40 | mp_image_t *dmpi; |
| 41 | int ret = 0; |
| 42 | int flags = mpi->fields; |
| 43 | int state = vf->priv->state; |
| 44 | |
| 45 | dmpi = ff_vf_get_image(vf->next, mpi->imgfmt, |
| 46 | MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE | |
| 47 | MP_IMGFLAG_PRESERVE, mpi->width, mpi->height); |
| 48 | |
| 49 | vf->priv->in++; |
| 50 | |
| 51 | if ((state == 0 && |
| 52 | !(flags & MP_IMGFIELD_TOP_FIRST)) || |
| 53 | (state == 1 && |
| 54 | flags & MP_IMGFIELD_TOP_FIRST)) { |
| 55 | ff_mp_msg(MSGT_VFILTER, MSGL_WARN, |
| 56 | "softpulldown: Unexpected field flags: state=%d top_field_first=%d repeat_first_field=%d\n", |
| 57 | state, |
| 58 | (flags & MP_IMGFIELD_TOP_FIRST) != 0, |
| 59 | (flags & MP_IMGFIELD_REPEAT_FIRST) != 0); |
| 60 | state ^= 1; |
| 61 | } |
| 62 | |
| 63 | if (state == 0) { |
| 64 | ret = ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE); |
| 65 | vf->priv->out++; |
| 66 | if (flags & MP_IMGFIELD_REPEAT_FIRST) { |
| 67 | my_memcpy_pic(dmpi->planes[0], |
| 68 | mpi->planes[0], mpi->w, mpi->h/2, |
| 69 | dmpi->stride[0]*2, mpi->stride[0]*2); |
| 70 | if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| 71 | my_memcpy_pic(dmpi->planes[1], |
| 72 | mpi->planes[1], |
| 73 | mpi->chroma_width, |
| 74 | mpi->chroma_height/2, |
| 75 | dmpi->stride[1]*2, |
| 76 | mpi->stride[1]*2); |
| 77 | my_memcpy_pic(dmpi->planes[2], |
| 78 | mpi->planes[2], |
| 79 | mpi->chroma_width, |
| 80 | mpi->chroma_height/2, |
| 81 | dmpi->stride[2]*2, |
| 82 | mpi->stride[2]*2); |
| 83 | } |
| 84 | state=1; |
| 85 | } |
| 86 | } else { |
| 87 | my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0], |
| 88 | mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2, |
| 89 | dmpi->stride[0]*2, mpi->stride[0]*2); |
| 90 | if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| 91 | my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1], |
| 92 | mpi->planes[1]+mpi->stride[1], |
| 93 | mpi->chroma_width, mpi->chroma_height/2, |
| 94 | dmpi->stride[1]*2, mpi->stride[1]*2); |
| 95 | my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2], |
| 96 | mpi->planes[2]+mpi->stride[2], |
| 97 | mpi->chroma_width, mpi->chroma_height/2, |
| 98 | dmpi->stride[2]*2, mpi->stride[2]*2); |
| 99 | } |
| 100 | ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE); |
| 101 | vf->priv->out++; |
| 102 | if (flags & MP_IMGFIELD_REPEAT_FIRST) { |
| 103 | ret |= ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE); |
| 104 | vf->priv->out++; |
| 105 | state=0; |
| 106 | } else { |
| 107 | my_memcpy_pic(dmpi->planes[0], |
| 108 | mpi->planes[0], mpi->w, mpi->h/2, |
| 109 | dmpi->stride[0]*2, mpi->stride[0]*2); |
| 110 | if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| 111 | my_memcpy_pic(dmpi->planes[1], |
| 112 | mpi->planes[1], |
| 113 | mpi->chroma_width, |
| 114 | mpi->chroma_height/2, |
| 115 | dmpi->stride[1]*2, |
| 116 | mpi->stride[1]*2); |
| 117 | my_memcpy_pic(dmpi->planes[2], |
| 118 | mpi->planes[2], |
| 119 | mpi->chroma_width, |
| 120 | mpi->chroma_height/2, |
| 121 | dmpi->stride[2]*2, |
| 122 | mpi->stride[2]*2); |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | vf->priv->state = state; |
| 128 | |
| 129 | return ret; |
| 130 | } |
| 131 | |
| 132 | static int config(struct vf_instance *vf, |
| 133 | int width, int height, int d_width, int d_height, |
| 134 | unsigned int flags, unsigned int outfmt) |
| 135 | { |
| 136 | return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
| 137 | } |
| 138 | |
| 139 | static void uninit(struct vf_instance *vf) |
| 140 | { |
| 141 | ff_mp_msg(MSGT_VFILTER, MSGL_INFO, "softpulldown: %lld frames in, %lld frames out\n", vf->priv->in, vf->priv->out); |
| 142 | free(vf->priv); |
| 143 | } |
| 144 | |
| 145 | static int vf_open(vf_instance_t *vf, char *args) |
| 146 | { |
| 147 | vf->config = config; |
| 148 | vf->put_image = put_image; |
| 149 | vf->uninit = uninit; |
| 150 | vf->default_reqs = VFCAP_ACCEPT_STRIDE; |
| 151 | vf->priv = calloc(1, sizeof(struct vf_priv_s)); |
| 152 | vf->priv->state = 0; |
| 153 | return 1; |
| 154 | } |
| 155 | |
| 156 | const vf_info_t ff_vf_info_softpulldown = { |
| 157 | "mpeg2 soft 3:2 pulldown", |
| 158 | "softpulldown", |
| 159 | "Tobias Diedrich <ranma+mplayer@tdiedrich.de>", |
| 160 | "", |
| 161 | vf_open, |
| 162 | NULL |
| 163 | }; |