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mpv/libmpcodecs/vf_rectangle.c
albeu 33b62af947 Add the new -vf option wich is the same as vop in reverse order.
Syntax is we decided, so you can give the nomes or not with both
vop and vf. vf take precedence over vop.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9594 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-03-15 18:01:02 +00:00

174 lines
4.6 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mp_image.h"
#include "../mp_msg.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
struct vf_priv_s {
int x, y, w, h;
};
static int
config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
if (vf->priv->w < 0 || width < vf->priv->w)
vf->priv->w = width;
if (vf->priv->h < 0 || height < vf->priv->h)
vf->priv->h = height;
if (vf->priv->x < 0)
vf->priv->x = (width - vf->priv->w) / 2;
if (vf->priv->y < 0)
vf->priv->y = (height - vf->priv->h) / 2;
if (vf->priv->w + vf->priv->x > width
|| vf->priv->h + vf->priv->y > height) {
mp_msg(MSGT_VFILTER,MSGL_WARN,"rectangle: bad position/width/height - rectangle area is out of the original!\n");
return 0;
}
return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt);
}
static int
control(struct vf_instance_s* vf, int request, void *data)
{
const int *const tmp = data;
switch(request){
case VFCTRL_CHANGE_RECTANGLE:
switch (tmp[0]){
case 0:
vf->priv->w += tmp[1];
return 1;
break;
case 1:
vf->priv->h += tmp[1];
return 1;
break;
case 2:
vf->priv->x += tmp[1];
return 1;
break;
case 3:
vf->priv->y += tmp[1];
return 1;
break;
default:
mp_msg(MSGT_VFILTER,MSGL_FATAL,"Unknown param %d \n", tmp[0]);
return 0;
}
}
return vf_next_control(vf, request, data);
return 0;
}
static int
put_image(struct vf_instance_s* vf, mp_image_t* mpi){
mp_image_t* dmpi;
unsigned int bpp = mpi->bpp / 8;
unsigned int x, y, w, h;
dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP,
MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
mpi->w, mpi->h);
memcpy_pic(dmpi->planes[0],mpi->planes[0],mpi->w*bpp, mpi->h,
dmpi->stride[0],mpi->stride[0]);
if(mpi->flags&MP_IMGFLAG_PLANAR && mpi->flags&MP_IMGFLAG_YUV){
memcpy_pic(dmpi->planes[1],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],mpi->planes[2],
mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift,
dmpi->stride[2],mpi->stride[2]);
}
/* Draw the rectangle */
mp_msg(MSGT_VFILTER,MSGL_INFO, "rectangle: -vop rectangle=%d:%d:%d:%d \n", vf->priv->w, vf->priv->h, vf->priv->x, vf->priv->y);
if (vf->priv->x < 0)
x = 0;
else if (dmpi->width < vf->priv->x)
x = dmpi->width;
else
x = vf->priv->x;
if (vf->priv->x + vf->priv->w - 1 < 0)
w = vf->priv->x + vf->priv->w - 1 - x;
else if (dmpi->width < vf->priv->x + vf->priv->w - 1)
w = dmpi->width - x;
else
w = vf->priv->x + vf->priv->w - 1 - x;
if (vf->priv->y < 0)
y = 0;
else if (dmpi->height < vf->priv->y)
y = dmpi->height;
else
y = vf->priv->y;
if (vf->priv->y + vf->priv->h - 1 < 0)
h = vf->priv->y + vf->priv->h - 1 - y;
else if (dmpi->height < vf->priv->y + vf->priv->h - 1)
h = dmpi->height - y;
else
h = vf->priv->y + vf->priv->h - 1 - y;
if (0 <= vf->priv->y && vf->priv->y <= dmpi->height) {
unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
unsigned int count = w * bpp;
while (count--)
p[count] = 0xff - p[count];
}
if (h != 1 && vf->priv->y + vf->priv->h - 1 <= mpi->height) {
unsigned char *p = dmpi->planes[0] + (vf->priv->y + vf->priv->h - 1) * dmpi->stride[0] + x * bpp;
unsigned int count = w * bpp;
while (count--)
p[count] = 0xff - p[count];
}
if (0 <= vf->priv->x && vf->priv->x <= dmpi->width) {
unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
unsigned int count = h;
while (count--) {
unsigned int i = bpp;
while (i--)
p[i] = 0xff - p[i];
p += dmpi->stride[0];
}
}
if (w != 1 && vf->priv->x + vf->priv->w - 1 <= mpi->width) {
unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + (vf->priv->x + vf->priv->w - 1) * bpp;
unsigned int count = h;
while (count--) {
unsigned int i = bpp;
while (i--)
p[i] = 0xff - p[i];
p += dmpi->stride[0];
}
}
return vf_next_put_image(vf, dmpi);
}
static int
open(vf_instance_t* vf, char* args) {
vf->config = config;
vf->control = control;
vf->put_image = put_image;
vf->priv = malloc(sizeof(struct vf_priv_s));
vf->priv->x = -1;
vf->priv->y = -1;
vf->priv->w = -1;
vf->priv->h = -1;
if (args)
sscanf(args, "%d:%d:%d:%d",
&vf->priv->w, &vf->priv->h, &vf->priv->x, &vf->priv->y);
return 1;
}
vf_info_t vf_info_rectangle = {
"draw rectangle",
"rectangle",
"Kim Minh Kaplan",
"",
open,
NULL
};