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vertigotv: add stride support

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This commit is contained in:
Wim Taymans 2011-07-25 10:10:58 +01:00
parent b98bc75f47
commit 7ca40d7a53
1 changed files with 14 additions and 8 deletions
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22
gst/effectv/gstvertigo.c
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@ -170,7 +170,7 @@ gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
GstVertigoTV *filter = GST_VERTIGOTV (trans);
guint32 *src, *dest, *p;
guint32 v;
gint x, y, ox, oy, i, width, height, area;
gint x, y, ox, oy, i, width, height, area, sstride, dstride;
GstClockTime timestamp, stream_time;
GstVideoFrame in_frame, out_frame;
@ -191,21 +191,26 @@ gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
goto invalid_out;
src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (&in_frame);
height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
area = width * height;
sstride /= 4;
dstride /= 4;
gst_vertigotv_set_parms (filter);
p = filter->alt_buffer;
for (y = height; y > 0; y--) {
for (y = 0; y < height; y++) {
ox = filter->sx;
oy = filter->sy;
for (x = width; x > 0; x--) {
for (x = 0; x < width; x++) {
i = (oy >> 16) * width + (ox >> 16);
if (i < 0)
i = 0;
@ -213,17 +218,18 @@ gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
i = area;
v = filter->current_buffer[i] & 0xfcfcff;
v = (v * 3) + ((*src++) & 0xfcfcff);
v = (v * 3) + (src[x] & 0xfcfcff);
*p++ = (v >> 2);
*p++ = dest[x] = (v >> 2);
ox += filter->dx;
oy += filter->dy;
}
filter->sx -= filter->dy;
filter->sy += filter->dx;
}
memcpy (dest, filter->alt_buffer, area * sizeof (guint32));
src += sstride;
dest += dstride;
}
p = filter->current_buffer;
filter->current_buffer = filter->alt_buffer;