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zebrastripe: Refactor to remove duplicate code

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gst_zebra_stripe_transform_frame_ip_planarY
gst_zebra_stripe_transform_frame_ip_YUY2
gst_zebra_stripe_transform_frame_ip_AYUV
all above 3 functions do the same functionality except for offset and pixel stride.
Hence moving the functionality to a single funtion.

https://bugzilla.gnome.org/show_bug.cgi?id=735032
This commit is contained in:
Vineeth T M 2014-09-01 08:24:57 +05:30 committed by Thiago Santos
parent cd73c776f2
commit 114ee3355a
1 changed files with 17 additions and 73 deletions
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90
gst/videofilters/gstzebrastripe.c
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@ -200,105 +200,49 @@ gst_zebra_stripe_stop (GstBaseTransform * trans)
}
static GstFlowReturn
gst_zebra_stripe_transform_frame_ip_planarY (GstZebraStripe * zebrastripe,
GstVideoFrame * frame)
{
int width = frame->info.width;
int height = frame->info.height;
int i, j;
int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t;
for (j = 0; j < height; j++) {
guint8 *data = (guint8 *) frame->data[0] + frame->info.stride[0] * j;
for (i = 0; i < width; i++) {
if (data[i] >= threshold) {
if ((i + j + t) & 0x4)
data[i] = 16;
}
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_zebra_stripe_transform_frame_ip_YUY2 (GstZebraStripe * zebrastripe,
gst_zebra_stripe_transform_frame_ip (GstVideoFilter * filter,
GstVideoFrame * frame)
{
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (filter);
int width = frame->info.width;
int height = frame->info.height;
int i, j;
int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t;
int offset = 0;
if (frame->info.finfo->format == GST_VIDEO_FORMAT_UYVY) {
offset = 1;
}
for (j = 0; j < height; j++) {
guint8 *data =
(guint8 *) frame->data[0] + frame->info.stride[0] * j + offset;
for (i = 0; i < width; i++) {
if (data[2 * i] >= threshold) {
if ((i + j + t) & 0x4)
data[2 * i] = 16;
}
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_zebra_stripe_transform_frame_ip_AYUV (GstZebraStripe * zebrastripe,
GstVideoFrame * frame)
{
int width = frame->info.width;
int height = frame->info.height;
int i, j;
int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t;
for (j = 0; j < height; j++) {
guint8 *data = (guint8 *) frame->data[0] + frame->info.stride[0] * j;
for (i = 0; i < width; i++) {
if (data[4 * i + 1] >= threshold) {
if ((i + j + t) & 0x4)
data[4 * i + 1] = 16;
}
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_zebra_stripe_transform_frame_ip (GstVideoFilter * filter,
GstVideoFrame * frame)
{
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (filter);
int pixel_stride = 0, y_position = 0;
GST_DEBUG_OBJECT (zebrastripe, "transform_frame_ip");
zebrastripe->t++;
pixel_stride = GST_VIDEO_FORMAT_INFO_PSTRIDE (frame->info.finfo, 0);
switch (frame->info.finfo->format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
gst_zebra_stripe_transform_frame_ip_planarY (zebrastripe, frame);
break;
case GST_VIDEO_FORMAT_YUY2:
break;
case GST_VIDEO_FORMAT_UYVY:
gst_zebra_stripe_transform_frame_ip_YUY2 (zebrastripe, frame);
offset = 1;
break;
case GST_VIDEO_FORMAT_AYUV:
gst_zebra_stripe_transform_frame_ip_AYUV (zebrastripe, frame);
y_position = 1;
break;
default:
g_assert_not_reached ();
}
for (j = 0; j < height; j++) {
guint8 *data =
(guint8 *) frame->data[0] + frame->info.stride[0] * j + offset;
for (i = 0; i < width; i++) {
if (data[pixel_stride * i + y_position] >= threshold) {
if ((i + j + t) & 0x4)
data[pixel_stride * i + y_position] = 16;
}
}
}
return GST_FLOW_OK;
}