| /* |
| * Copyright (C) 2003 Michael Zucchi <notzed@ximian.com> |
| * |
| * 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 mode; |
| int frame; |
| mp_image_t *dmpi; |
| }; |
| |
| static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) |
| { |
| int ret = 0; |
| mp_image_t *dmpi; |
| |
| switch (vf->priv->mode) { |
| case 0: |
| dmpi = vf->priv->dmpi; |
| if (dmpi == NULL) { |
| dmpi = vf_get_image(vf->next, mpi->imgfmt, |
| MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE | |
| MP_IMGFLAG_PRESERVE, |
| mpi->width, mpi->height*2); |
| |
| vf->priv->dmpi = dmpi; |
| |
| memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, |
| dmpi->stride[0]*2, mpi->stride[0]); |
| if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| memcpy_pic(dmpi->planes[1], mpi->planes[1], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[1]*2, mpi->stride[1]); |
| memcpy_pic(dmpi->planes[2], mpi->planes[2], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[2]*2, mpi->stride[2]); |
| } |
| } else { |
| vf->priv->dmpi = NULL; |
| |
| memcpy_pic(dmpi->planes[0]+dmpi->stride[0], mpi->planes[0], mpi->w, mpi->h, |
| dmpi->stride[0]*2, mpi->stride[0]); |
| if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| memcpy_pic(dmpi->planes[1]+dmpi->stride[1], mpi->planes[1], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[1]*2, mpi->stride[1]); |
| memcpy_pic(dmpi->planes[2]+dmpi->stride[2], mpi->planes[2], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[2]*2, mpi->stride[2]); |
| } |
| ret = vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE); |
| } |
| break; |
| case 1: |
| if (vf->priv->frame & 1) |
| ret = vf_next_put_image(vf, mpi, MP_NOPTS_VALUE); |
| break; |
| case 2: |
| if ((vf->priv->frame & 1) == 0) |
| ret = vf_next_put_image(vf, mpi, MP_NOPTS_VALUE); |
| break; |
| case 3: |
| dmpi = vf_get_image(vf->next, mpi->imgfmt, |
| MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, |
| mpi->width, mpi->height*2); |
| /* fixme, just clear alternate lines */ |
| vf_mpi_clear(dmpi, 0, 0, dmpi->w, dmpi->h); |
| if ((vf->priv->frame & 1) == 0) { |
| memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, |
| dmpi->stride[0]*2, mpi->stride[0]); |
| if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| memcpy_pic(dmpi->planes[1], mpi->planes[1], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[1]*2, mpi->stride[1]); |
| memcpy_pic(dmpi->planes[2], mpi->planes[2], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[2]*2, mpi->stride[2]); |
| } |
| } else { |
| memcpy_pic(dmpi->planes[0]+dmpi->stride[0], mpi->planes[0], mpi->w, mpi->h, |
| dmpi->stride[0]*2, mpi->stride[0]); |
| if (mpi->flags & MP_IMGFLAG_PLANAR) { |
| memcpy_pic(dmpi->planes[1]+dmpi->stride[1], mpi->planes[1], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[1]*2, mpi->stride[1]); |
| memcpy_pic(dmpi->planes[2]+dmpi->stride[2], mpi->planes[2], |
| mpi->chroma_width, mpi->chroma_height, |
| dmpi->stride[2]*2, mpi->stride[2]); |
| } |
| } |
| ret = vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE); |
| break; |
| case 4: |
| // Interleave even lines (only) from Frame 'i' with odd |
| // lines (only) from Frame 'i+1', halving the Frame |
| // rate and preserving image height. |
| |
| dmpi = vf->priv->dmpi; |
| |
| // @@ Need help: Should I set dmpi->fields to indicate |
| // that the (new) frame will be interlaced!? E.g. ... |
| // dmpi->fields |= MP_IMGFIELD_INTERLACED; |
| // dmpi->fields |= MP_IMGFIELD_TOP_FIRST; |
| // etc. |
| |
| if (dmpi == NULL) { |
| dmpi = vf_get_image(vf->next, mpi->imgfmt, |
| MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE | |
| MP_IMGFLAG_PRESERVE, |
| mpi->width, mpi->height); |
| |
| vf->priv->dmpi = dmpi; |
| |
| 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); |
| } |
| } else { |
| vf->priv->dmpi = NULL; |
| |
| 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 = vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE); |
| } |
| break; |
| } |
| |
| vf->priv->frame++; |
| |
| return ret; |
| } |
| |
| 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 vf_next_query_format(vf, fmt); |
| } |
| return 0; |
| } |
| |
| static int config(struct vf_instance *vf, |
| int width, int height, int d_width, int d_height, |
| unsigned int flags, unsigned int outfmt) |
| { |
| switch (vf->priv->mode) { |
| case 0: |
| case 3: |
| return vf_next_config(vf,width,height*2,d_width,d_height*2,flags,outfmt); |
| case 1: /* odd frames */ |
| case 2: /* even frames */ |
| case 4: /* alternate frame (height-preserving) interlacing */ |
| return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
| } |
| return 0; |
| } |
| |
| static void uninit(struct vf_instance *vf) |
| { |
| free(vf->priv); |
| } |
| |
| static int vf_open(vf_instance_t *vf, char *args) |
| { |
| struct vf_priv_s *p; |
| vf->config = config; |
| vf->put_image = put_image; |
| vf->query_format = query_format; |
| vf->uninit = uninit; |
| vf->default_reqs = VFCAP_ACCEPT_STRIDE; |
| vf->priv = p = calloc(1, sizeof(struct vf_priv_s)); |
| vf->priv->mode = 0; |
| if (args) |
| sscanf(args, "%d", &vf->priv->mode); |
| vf->priv->frame = 0; |
| return 1; |
| } |
| |
| const vf_info_t vf_info_tinterlace = { |
| "temporal field interlacing", |
| "tinterlace", |
| "Michael Zucchi", |
| "", |
| vf_open, |
| NULL |
| }; |
