void scratcher_apply(VJFrame *src,
int width, int height, int opacity, int n,
int no_reverse)
{
unsigned int len = src->len;
unsigned int op1 = (opacity > 255) ? 255 : opacity;
int offset = len * nframe;
int uv_len = src->uv_len;
int uv_offset = uv_len * nframe;
VJFrame copy;
if (nframe== 0) {
int strides[4] = { len, uv_len, uv_len, 0 };
vj_frame_copy( src->data, frame, strides );
return;
}
VJFrame srcB;
veejay_memcpy( &srcB, src, sizeof(VJFrame) );
srcB.data[0] = frame[0] + offset;
srcB.data[1] = frame[1] + uv_offset;
srcB.data[2] = frame[2] + uv_offset;
opacity_applyN( src, &srcB, src->width,src->height, opacity );
copy.uv_len = src->uv_len;
copy.data[0] = frame[0];
copy.data[1] = frame[1];
copy.data[2] = frame[2];
store_frame( ©, width, height, n, no_reverse);
}
void scratcher_apply(VJFrame *src,int opacity, int n, int no_reverse)
{
const int len = src->len;
const int offset = len * nframe;
const int uv_len = src->uv_len;
const int uv_offset = uv_len * nframe;
VJFrame tmp;
veejay_memcpy( &tmp, src, sizeof(VJFrame) );
tmp.data[0] = frame[0] + offset;
tmp.data[1] = frame[1] + uv_offset;
tmp.data[2] = frame[2] + uv_offset;
if( no_reverse != last_reverse || n != last_n )
{
last_reverse = no_reverse;
nframe = n;
last_n = n;
}
if( nframe == 0 ) {
tmp.data[0] = src->data[0];
tmp.data[1] = src->data[1];
tmp.data[2] = src->data[2];
}
opacity_applyN( src, &tmp, opacity );
store_frame( src, n, no_reverse);
}