static void
deinterlace_frame_di_greedyh_packed (GstDeinterlaceMethod * method,
const GstDeinterlaceField * history, guint history_count,
GstVideoFrame * outframe, int cur_field_idx)
{
GstDeinterlaceMethodGreedyH *self = GST_DEINTERLACE_METHOD_GREEDY_H (method);
GstDeinterlaceMethodGreedyHClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_H_GET_CLASS (self);
gint InfoIsOdd = 0;
gint Line;
gint RowStride = GST_VIDEO_FRAME_COMP_STRIDE (outframe, 0);
gint FieldHeight = GST_VIDEO_INFO_HEIGHT (method->vinfo) / 2;
gint Pitch = RowStride * 2;
const guint8 *L1; // ptr to Line1, of 3
const guint8 *L2; // ptr to Line2, the weave line
const guint8 *L3; // ptr to Line3
const guint8 *L2P; // ptr to prev Line2
guint8 *Dest = GST_VIDEO_FRAME_COMP_DATA (outframe, 0);
ScanlineFunction scanline;
if (cur_field_idx + 2 > history_count || cur_field_idx < 1) {
GstDeinterlaceMethod *backup_method;
backup_method = g_object_new (gst_deinterlace_method_linear_get_type (),
NULL);
gst_deinterlace_method_setup (backup_method, method->vinfo);
gst_deinterlace_method_deinterlace_frame (backup_method,
history, history_count, outframe, cur_field_idx);
g_object_unref (backup_method);
return;
}
cur_field_idx += 2;
switch (GST_VIDEO_INFO_FORMAT (method->vinfo)) {
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
scanline = klass->scanline_yuy2;
break;
case GST_VIDEO_FORMAT_UYVY:
scanline = klass->scanline_uyvy;
break;
case GST_VIDEO_FORMAT_AYUV:
scanline = klass->scanline_ayuv;
break;
default:
g_assert_not_reached ();
return;
}
// copy first even line no matter what, and the first odd line if we're
// processing an EVEN field. (note diff from other deint rtns.)
if (history[cur_field_idx - 1].flags == PICTURE_INTERLACED_BOTTOM) {
InfoIsOdd = 1;
L1 = GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx - 2].frame, 0);
if (history[cur_field_idx - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx - 1].frame, 0);
if (history[cur_field_idx - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P = GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx - 3].frame, 0);
if (history[cur_field_idx - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
// copy first even line
memcpy (Dest, L1, RowStride);
Dest += RowStride;
} else {
InfoIsOdd = 0;
L1 = GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx - 2].frame, 0);
if (history[cur_field_idx - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = (guint8 *) GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx -
1].frame, 0) + Pitch;
if (history[cur_field_idx - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P =
(guint8 *) GST_VIDEO_FRAME_COMP_DATA (history[cur_field_idx - 3].frame,
0) + Pitch;
if (history[cur_field_idx - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
// copy first even line
memcpy (Dest, L1, RowStride);
Dest += RowStride;
// then first odd line
memcpy (Dest, L1, RowStride);
Dest += RowStride;
}
for (Line = 0; Line < (FieldHeight - 1); ++Line) {
scanline (self, L1, L2, L3, L2P, Dest, RowStride);
Dest += RowStride;
memcpy (Dest, L3, RowStride);
Dest += RowStride;
L1 += Pitch;
L2 += Pitch;
L3 += Pitch;
L2P += Pitch;
}
if (InfoIsOdd) {
memcpy (Dest, L2, RowStride);
}
}
static void
deinterlace_frame_di_greedyh_planar (GstDeinterlaceMethod * method,
const GstDeinterlaceField * history, guint history_count,
GstVideoFrame * outframe, int cur_field_idx)
{
GstDeinterlaceMethodGreedyH *self = GST_DEINTERLACE_METHOD_GREEDY_H (method);
GstDeinterlaceMethodGreedyHClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_H_GET_CLASS (self);
gint InfoIsOdd;
gint RowStride;
gint FieldHeight;
gint Pitch;
const guint8 *L1; // ptr to Line1, of 3
const guint8 *L2; // ptr to Line2, the weave line
const guint8 *L3; // ptr to Line3
const guint8 *L2P; // ptr to prev Line2
guint8 *Dest;
gint i;
ScanlineFunction scanline;
if (cur_field_idx + 2 > history_count || cur_field_idx < 1) {
GstDeinterlaceMethod *backup_method;
backup_method = g_object_new (gst_deinterlace_method_linear_get_type (),
NULL);
gst_deinterlace_method_setup (backup_method, method->vinfo);
gst_deinterlace_method_deinterlace_frame (backup_method,
history, history_count, outframe, cur_field_idx);
g_object_unref (backup_method);
return;
}
cur_field_idx += 2;
for (i = 0; i < 3; i++) {
InfoIsOdd = (history[cur_field_idx - 1].flags == PICTURE_INTERLACED_BOTTOM);
RowStride = GST_VIDEO_FRAME_PLANE_STRIDE (outframe, i);
FieldHeight = GST_VIDEO_FRAME_HEIGHT (outframe) / 2;
Pitch = RowStride * 2;
if (i == 0)
scanline = klass->scanline_planar_y;
else
scanline = klass->scanline_planar_uv;
Dest = GST_VIDEO_FRAME_PLANE_DATA (outframe, i);
L1 = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 2].frame, i);
if (history[cur_field_idx - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 1].frame, i);
if (history[cur_field_idx - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 3].frame, i);
if (history[cur_field_idx - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
deinterlace_frame_di_greedyh_planar_plane (self, L1, L2, L3, L2P, Dest,
RowStride, FieldHeight, Pitch, InfoIsOdd, scanline);
}
}
static void
deinterlace_frame_di_greedyh_planar (GstDeinterlaceMethod * method,
const GstDeinterlaceField * history, guint history_count,
GstBuffer * outbuf, int cur_field_idx)
{
GstDeinterlaceMethodGreedyH *self = GST_DEINTERLACE_METHOD_GREEDY_H (method);
GstDeinterlaceMethodGreedyHClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_H_GET_CLASS (self);
gint InfoIsOdd;
gint RowStride;
gint FieldHeight;
gint Pitch;
const guint8 *L1; // ptr to Line1, of 3
const guint8 *L2; // ptr to Line2, the weave line
const guint8 *L3; // ptr to Line3
const guint8 *L2P; // ptr to prev Line2
guint8 *Dest;
gint i;
gint Offset;
ScanlineFunction scanline;
if (cur_field_idx + 2 > history_count || cur_field_idx < 1) {
GstDeinterlaceMethod *backup_method;
backup_method = g_object_new (gst_deinterlace_method_linear_get_type (),
NULL);
gst_deinterlace_method_setup (backup_method, method->format,
method->frame_width, method->frame_height);
gst_deinterlace_method_deinterlace_frame (backup_method,
history, history_count, outbuf, cur_field_idx);
g_object_unref (backup_method);
return;
}
cur_field_idx += 2;
for (i = 0; i < 3; i++) {
Offset = method->offset[i];
InfoIsOdd = (history[cur_field_idx - 1].flags == PICTURE_INTERLACED_BOTTOM);
RowStride = method->row_stride[i];
FieldHeight = method->height[i] / 2;
Pitch = method->row_stride[i] * 2;
if (i == 0)
scanline = klass->scanline_planar_y;
else
scanline = klass->scanline_planar_uv;
Dest = GST_BUFFER_DATA (outbuf) + Offset;
L1 = GST_BUFFER_DATA (history[cur_field_idx - 2].buf) + Offset;
if (history[cur_field_idx - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = GST_BUFFER_DATA (history[cur_field_idx - 1].buf) + Offset;
if (history[cur_field_idx - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P = GST_BUFFER_DATA (history[cur_field_idx - 3].buf) + Offset;
if (history[cur_field_idx - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
deinterlace_frame_di_greedyh_planar_plane (self, L1, L2, L3, L2P, Dest,
RowStride, FieldHeight, Pitch, InfoIsOdd, scanline);
}
}
