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deinterlace: Add support for planar YUV formats in greedyl method

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This commit is contained in:
Sebastian Dröge 2010-04-24 15:42:07 +02:00
parent 03a8379e20
commit bdb9675519
1 changed files with 101 additions and 4 deletions
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105
gst/deinterlace/tvtime/greedy.c
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@ -52,12 +52,14 @@ typedef struct
guint max_comb;
} GstDeinterlaceMethodGreedyL;
typedef void (*GreedyLScanlineFunction) (GstDeinterlaceMethodGreedyL * self,
const guint8 * L2, const guint8 * L1, const guint8 * L3, const guint8 * L2P,
guint8 * Dest, gint width);
typedef struct
{
GstDeinterlaceMethodClass parent_class;
void (*scanline) (GstDeinterlaceMethodGreedyL * self, const guint8 * L2,
const guint8 * L1, const guint8 * L3, const guint8 * L2P, guint8 * Dest,
gint width);
GreedyLScanlineFunction scanline;
} GstDeinterlaceMethodGreedyLClass;
// This is a simple lightweight DeInterlace method that uses little CPU time
@ -387,7 +389,7 @@ deinterlace_frame_di_greedy_packed (GstDeinterlaceMethod * method,
L2P += RowStride;
// copy first even line
oil_memcpy (Dest, GST_BUFFER_DATA (history[0].buf), RowStride);
oil_memcpy (Dest, L1, RowStride);
Dest += RowStride;
// then first odd line
oil_memcpy (Dest, L1, RowStride);
@ -411,6 +413,96 @@ deinterlace_frame_di_greedy_packed (GstDeinterlaceMethod * method,
}
}
static void
deinterlace_frame_di_greedy_planar_plane (GstDeinterlaceMethodGreedyL * self,
const guint8 * L1, const guint8 * L2, const guint8 * L3, const guint8 * L2P,
guint8 * Dest, gint RowStride, gint FieldHeight, gint Pitch, gint InfoIsOdd,
GreedyLScanlineFunction scanline)
{
gint Line;
// 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 (InfoIsOdd) {
// copy first even line
oil_memcpy (Dest, L1, RowStride);
Dest += RowStride;
} else {
// copy first even line
oil_memcpy (Dest, L1, RowStride);
Dest += RowStride;
// then first odd line
oil_memcpy (Dest, L1, RowStride);
Dest += RowStride;
}
for (Line = 0; Line < (FieldHeight - 1); ++Line) {
scanline (self, L2, L1, L3, L2P, Dest, RowStride);
Dest += RowStride;
oil_memcpy (Dest, L3, RowStride);
Dest += RowStride;
L1 += Pitch;
L2 += Pitch;
L3 += Pitch;
L2P += Pitch;
}
if (InfoIsOdd) {
oil_memcpy (Dest, L2, RowStride);
}
}
static void
deinterlace_frame_di_greedy_planar (GstDeinterlaceMethod * method,
const GstDeinterlaceField * history, guint history_count,
GstBuffer * outbuf)
{
GstDeinterlaceMethodGreedyL *self = GST_DEINTERLACE_METHOD_GREEDY_L (method);
GstDeinterlaceMethodGreedyLClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_L_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;
GreedyLScanlineFunction scanline = klass->scanline;
for (i = 0; i < 3; i++) {
Offset = method->offset[i];
InfoIsOdd = (history[history_count - 1].flags == PICTURE_INTERLACED_BOTTOM);
RowStride = method->row_stride[i];
FieldHeight = method->height[i] / 2;
Pitch = method->row_stride[i] * 2;
Dest = GST_BUFFER_DATA (outbuf) + Offset;
L1 = GST_BUFFER_DATA (history[history_count - 2].buf) + Offset;
if (history[history_count - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = GST_BUFFER_DATA (history[history_count - 1].buf) + Offset;
if (history[history_count - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P = GST_BUFFER_DATA (history[history_count - 3].buf) + Offset;
if (history[history_count - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
deinterlace_frame_di_greedy_planar_plane (self, L1, L2, L3, L2P, Dest,
RowStride, FieldHeight, Pitch, InfoIsOdd, scanline);
}
}
G_DEFINE_TYPE (GstDeinterlaceMethodGreedyL, gst_deinterlace_method_greedy_l,
GST_TYPE_DEINTERLACE_METHOD);
@ -476,6 +568,11 @@ gst_deinterlace_method_greedy_l_class_init (GstDeinterlaceMethodGreedyLClass *
dim_class->deinterlace_frame_yuy2 = deinterlace_frame_di_greedy_packed;
dim_class->deinterlace_frame_yvyu = deinterlace_frame_di_greedy_packed;
dim_class->deinterlace_frame_y444 = deinterlace_frame_di_greedy_planar;
dim_class->deinterlace_frame_y42b = deinterlace_frame_di_greedy_planar;
dim_class->deinterlace_frame_i420 = deinterlace_frame_di_greedy_planar;
dim_class->deinterlace_frame_yv12 = deinterlace_frame_di_greedy_planar;
dim_class->deinterlace_frame_y41b = deinterlace_frame_di_greedy_planar;
#ifdef BUILD_X86_ASM
if (cpu_flags & OIL_IMPL_FLAG_MMXEXT) {