video-scaler: Fix upscaling if width & height change and we're starting not at y=0

It was taking the initial input y-offset from the output value, which
only works for y=0 (in which case both are the same). If y > 0, we would
always stay behind the requested input offset and never ever read
anything from the input.
This commit is contained in:
Sebastian Dröge 2017-02-15 21:41:47 +02:00
parent 90374fab76
commit ab854b04ba

View file

@ -1505,7 +1505,6 @@ gst_video_scaler_2d (GstVideoScaler * hscale, GstVideoScaler * vscale,
vfunc (vscale, lines, LINE (dest, dest_stride, i), i, width, n_elems);
}
} else {
gint tmp_in = y;
gint s1, s2;
if (hscale->tmpwidth < width)
@ -1515,6 +1514,8 @@ gst_video_scaler_2d (GstVideoScaler * hscale, GstVideoScaler * vscale,
s2 = width * height;
if (s1 <= s2) {
gint tmp_in = vscale->resampler.offset[y];
for (i = y; i < height; i++) {
guint in, j;