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/*
* 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 <stdbool.h>
#include <libavutil/common.h>
#include "config.h"
#include "core/mp_msg.h"
#include "core/options.h"
#include "video/img_format.h"
#include "video/mp_image.h"
#include "vf.h"
#include "video/memcpy_pic.h"
#include "core/m_option.h"
#include "core/m_struct.h"
static struct vf_priv_s {
// These four values are a backup of the values parsed from the command line.
// This is necessary so that we do not get a mess upon filter reinit due to
// e.g. aspect changes and with only aspect specified on the command line,
// where we would otherwise use the values calculated for a different aspect
// instead of recalculating them again.
int cfg_exp_w, cfg_exp_h;
int cfg_exp_x, cfg_exp_y;
int exp_w,exp_h;
int exp_x,exp_y;
double aspect;
int round;
} const vf_priv_dflt = {
-1,-1,
-1,-1,
-1,-1,
-1,-1,
0.,
1,
};
//===========================================================================//
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
struct MPOpts *opts = vf->opts;
mp_image_t test_mpi;
mp_image_setfmt(&test_mpi, outfmt);
if (test_mpi.num_planes > 3 || !test_mpi.bpp) return 0;
vf->priv->exp_x = vf->priv->cfg_exp_x;
vf->priv->exp_y = vf->priv->cfg_exp_y;
vf->priv->exp_w = vf->priv->cfg_exp_w;
vf->priv->exp_h = vf->priv->cfg_exp_h;
// calculate the missing parameters:
#if 0
if(vf->priv->exp_w<width) vf->priv->exp_w=width;
if(vf->priv->exp_h<height) vf->priv->exp_h=height;
#else
if ( vf->priv->exp_w == -1 ) vf->priv->exp_w=width;
else if (vf->priv->exp_w < -1 ) vf->priv->exp_w=width - vf->priv->exp_w;
else if ( vf->priv->exp_w<width ) vf->priv->exp_w=width;
if ( vf->priv->exp_h == -1 ) vf->priv->exp_h=height;
else if ( vf->priv->exp_h < -1 ) vf->priv->exp_h=height - vf->priv->exp_h;
else if( vf->priv->exp_h<height ) vf->priv->exp_h=height;
#endif
if (vf->priv->aspect) {
float adjusted_aspect = vf->priv->aspect;
adjusted_aspect *= ((double)width/height) / ((double)d_width/d_height);
if (vf->priv->exp_h < vf->priv->exp_w / adjusted_aspect) {
vf->priv->exp_h = vf->priv->exp_w / adjusted_aspect + 0.5;
} else {
vf->priv->exp_w = vf->priv->exp_h * adjusted_aspect + 0.5;
}
}
if (vf->priv->round > 1) { // round up.
vf->priv->exp_w = (1 + (vf->priv->exp_w - 1) / vf->priv->round) * vf->priv->round;
vf->priv->exp_h = (1 + (vf->priv->exp_h - 1) / vf->priv->round) * vf->priv->round;
}
if(vf->priv->exp_x<0 || vf->priv->exp_x+width>vf->priv->exp_w) vf->priv->exp_x=(vf->priv->exp_w-width)/2;
if(vf->priv->exp_y<0 || vf->priv->exp_y+height>vf->priv->exp_h) vf->priv->exp_y=(vf->priv->exp_h-height)/2;
if(test_mpi.flags & MP_IMGFLAG_YUV) {
int x_align_mask = (1 << test_mpi.chroma_x_shift) - 1;
int y_align_mask = (1 << test_mpi.chroma_y_shift) - 1;
// For 1-plane format non-aligned offsets will completely
// destroy the colours, for planar it will break the chroma
// sampling position.
if (vf->priv->exp_x & x_align_mask) {
vf->priv->exp_x &= ~x_align_mask;
mp_msg(MSGT_VFILTER, MSGL_ERR, "Specified x offset not supported "
"for YUV, reduced to %i.\n", vf->priv->exp_x);
}
if (vf->priv->exp_y & y_align_mask) {
vf->priv->exp_y &= ~y_align_mask;
mp_msg(MSGT_VFILTER, MSGL_ERR, "Specified y offset not supported "
"for YUV, reduced to %i.\n", vf->priv->exp_y);
}
}
if(!opts->screen_size_x && !opts->screen_size_y){
d_width=d_width*vf->priv->exp_w/width;
d_height=d_height*vf->priv->exp_h/height;
}
return vf_next_config(vf,vf->priv->exp_w,vf->priv->exp_h,d_width,d_height,flags,outfmt);
}
// w, h = width and height of the source frame (located at exp_x/exp_y)
static void clear_borders(struct vf_instance *vf, struct mp_image *dmpi,
int w, int h)
{
// upper border (over the full width)
mp_image_clear(dmpi, 0, 0, vf->priv->exp_w, vf->priv->exp_y);
// lower border
mp_image_clear(dmpi, 0, vf->priv->exp_y + h, vf->priv->exp_w,
vf->priv->exp_h - (vf->priv->exp_y + h));
// left
mp_image_clear(dmpi, 0, vf->priv->exp_y, vf->priv->exp_x, h);
// right
mp_image_clear(dmpi, vf->priv->exp_x + w, vf->priv->exp_y,
vf->priv->exp_w - (vf->priv->exp_x + w), h);
}
static struct mp_image *filter(struct vf_instance *vf, struct mp_image *mpi)
{
if (vf->priv->exp_x == 0 && vf->priv->exp_y == 0 &&
vf->priv->exp_w == mpi->w && vf->priv->exp_h == mpi->h)
return mpi;
struct mp_image *dmpi = vf_alloc_out_image(vf);
mp_image_copy_attributes(dmpi, mpi);
// copy mpi->dmpi...
if(mpi->flags&MP_IMGFLAG_PLANAR){
memcpy_pic(dmpi->planes[0]+
vf->priv->exp_y*dmpi->stride[0]+vf->priv->exp_x,
mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0],mpi->stride[0]);
memcpy_pic(dmpi->planes[1]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*dmpi->stride[1]+(vf->priv->exp_x>>mpi->chroma_x_shift),
mpi->planes[1], (mpi->w>>mpi->chroma_x_shift), (mpi->h>>mpi->chroma_y_shift),
dmpi->stride[1],mpi->stride[1]);
memcpy_pic(dmpi->planes[2]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*dmpi->stride[2]+(vf->priv->exp_x>>mpi->chroma_x_shift),
mpi->planes[2], (mpi->w>>mpi->chroma_x_shift), (mpi->h>>mpi->chroma_y_shift),
dmpi->stride[2],mpi->stride[2]);
} else {
memcpy_pic(dmpi->planes[0]+
vf->priv->exp_y*dmpi->stride[0]+vf->priv->exp_x*(dmpi->bpp/8),
mpi->planes[0], mpi->w*(dmpi->bpp/8), mpi->h,
dmpi->stride[0],mpi->stride[0]);
}
clear_borders(vf, dmpi, mpi->w, mpi->h);
talloc_free(mpi);
return dmpi;
}
//===========================================================================//
static int control(struct vf_instance *vf, int request, void* data){
return vf_next_control(vf,request,data);
}
static int query_format(struct vf_instance *vf, unsigned int fmt){
return vf_next_query_format(vf,fmt);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->config=config;
vf->control=control;
vf->query_format=query_format;
vf->filter=filter;
mp_msg(MSGT_VFILTER, MSGL_INFO, "Expand: %d x %d, %d ; %d, aspect: %f, round: %d\n",
vf->priv->cfg_exp_w,
vf->priv->cfg_exp_h,
vf->priv->cfg_exp_x,
vf->priv->cfg_exp_y,
vf->priv->aspect,
vf->priv->round);
return 1;
}
#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
static m_option_t vf_opts_fields[] = {
{"w", ST_OFF(cfg_exp_w), CONF_TYPE_INT, 0, 0 ,0, NULL},
{"h", ST_OFF(cfg_exp_h), CONF_TYPE_INT, 0, 0 ,0, NULL},
{"x", ST_OFF(cfg_exp_x), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
{"y", ST_OFF(cfg_exp_y), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
{"aspect", ST_OFF(aspect), CONF_TYPE_DOUBLE, M_OPT_MIN, 0, 0, NULL},
{"round", ST_OFF(round), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const m_struct_t vf_opts = {
"expand",
sizeof(struct vf_priv_s),
&vf_priv_dflt,
vf_opts_fields
};
const vf_info_t vf_info_expand = {
"expanding",
"expand",
"A'rpi",
"",
vf_open,
&vf_opts
};
//===========================================================================//
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