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deinterlace: add wrapper to get field lines from history

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No semantic change so far, will be used to implement alternate support.
This commit is contained in:
Guillaume Desmottes 2020-02-03 13:08:39 +05:30 committed by GStreamer Merge Bot
parent f0eb1419f6
commit b3d96e06c6
1 changed files with 85 additions and 81 deletions
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166
gst/deinterlace/gstdeinterlacemethod.c
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@ -304,6 +304,41 @@ gst_deinterlace_simple_method_copy_scanline_packed (GstDeinterlaceSimpleMethod *
memcpy (out, scanlines->m0, stride); memcpy (out, scanlines->m0, stride);
} }
typedef struct
{
const GstDeinterlaceField *history;
guint history_count;
gint cur_field_idx;
} LinesGetter;
#define CLAMP_LOW(i) (((i)<0) ? (i+2) : (i))
#define CLAMP_HI(i) (((i)>=(frame_height)) ? (i-2) : (i))
static guint8 *
get_line (LinesGetter * lg, gint field_offset, guint plane, gint line,
gint line_offset)
{
const GstVideoFrame *frame;
gint idx, frame_height;
guint8 *data;
idx = lg->cur_field_idx + field_offset;
if (idx < 0 || idx >= lg->history_count)
return NULL;
frame = lg->history[idx].frame;
g_assert (frame);
frame_height = GST_VIDEO_FRAME_COMP_HEIGHT (frame, plane);
line += line_offset;
data = GST_VIDEO_FRAME_PLANE_DATA ((frame), plane);
data += CLAMP_HI (CLAMP_LOW (line)) * GST_VIDEO_FRAME_PLANE_STRIDE ((frame),
plane);
return data;
}
static void static void
gst_deinterlace_simple_method_deinterlace_frame_packed (GstDeinterlaceMethod * gst_deinterlace_simple_method_deinterlace_frame_packed (GstDeinterlaceMethod *
method, const GstDeinterlaceField * history, guint history_count, method, const GstDeinterlaceField * history, guint history_count,
@ -317,6 +352,7 @@ gst_deinterlace_simple_method_deinterlace_frame_packed (GstDeinterlaceMethod *
guint cur_field_flags; guint cur_field_flags;
gint i; gint i;
gint frame_height, frame_width; gint frame_height, frame_width;
LinesGetter lg = { history, history_count, cur_field_idx };
GstVideoFrame *framep, *frame0, *frame1, *frame2; GstVideoFrame *framep, *frame0, *frame1, *frame2;
g_assert (self->interpolate_scanline_packed != NULL); g_assert (self->interpolate_scanline_packed != NULL);
@ -347,11 +383,8 @@ gst_deinterlace_simple_method_deinterlace_frame_packed (GstDeinterlaceMethod *
if (frame2) if (frame2)
frame_width = MIN (frame_width, GST_VIDEO_FRAME_PLANE_STRIDE (frame2, 0)); frame_width = MIN (frame_width, GST_VIDEO_FRAME_PLANE_STRIDE (frame2, 0));
#define CLAMP_LOW(i) (((i)<0) ? (i+2) : (i)) #define LINE(x,i) (((guint8*)GST_VIDEO_FRAME_PLANE_DATA((x),0)) + i * \
#define CLAMP_HI(i) (((i)>=(frame_height)) ? (i-2) : (i))
#define LINE(x,i) (((guint8*)GST_VIDEO_FRAME_PLANE_DATA((x),0)) + CLAMP_HI(CLAMP_LOW(i)) * \
GST_VIDEO_FRAME_PLANE_STRIDE((x),0)) GST_VIDEO_FRAME_PLANE_STRIDE((x),0))
#define LINE2(x,i) ((x) ? LINE(x,i) : NULL)
for (i = 0; i < frame_height; i++) { for (i = 0; i < frame_height; i++) {
memset (&scanlines, 0, sizeof (scanlines)); memset (&scanlines, 0, sizeof (scanlines));
@ -359,43 +392,42 @@ gst_deinterlace_simple_method_deinterlace_frame_packed (GstDeinterlaceMethod *
if (!((i & 1) ^ scanlines.bottom_field)) { if (!((i & 1) ^ scanlines.bottom_field)) {
/* copying */ /* copying */
scanlines.tp = LINE2 (framep, i - 1); scanlines.tp = get_line (&lg, -1, 0, i, -1);
scanlines.bp = LINE2 (framep, i + 1); scanlines.bp = get_line (&lg, -1, 0, i, 1);
scanlines.tt0 = LINE2 (frame0, i - 2); scanlines.tt0 = get_line (&lg, 0, 0, i, -2);
scanlines.m0 = LINE2 (frame0, i); scanlines.m0 = get_line (&lg, 0, 0, i, 0);
scanlines.bb0 = LINE2 (frame0, i + 2); scanlines.bb0 = get_line (&lg, 0, 0, i, 2);
scanlines.t1 = LINE2 (frame1, i - 1); scanlines.t1 = get_line (&lg, 1, 0, i, -1);
scanlines.b1 = LINE2 (frame1, i + 1); scanlines.b1 = get_line (&lg, 1, 0, i, 1);
scanlines.tt2 = LINE2 (frame2, i - 2); scanlines.tt2 = get_line (&lg, 2, 0, i, -2);
scanlines.m2 = LINE2 (frame2, i); scanlines.m2 = get_line (&lg, 2, 0, i, 0);
scanlines.bb2 = LINE2 (frame2, i + 2); scanlines.bb2 = get_line (&lg, 2, 0, i, 2);
self->copy_scanline_packed (self, LINE (outframe, i), &scanlines, self->copy_scanline_packed (self, LINE (outframe, i), &scanlines,
frame_width); frame_width);
} else { } else {
/* interpolating */ /* interpolating */
scanlines.ttp = LINE2 (framep, i - 2); scanlines.ttp = get_line (&lg, -1, 0, i, -2);
scanlines.mp = LINE2 (framep, i); scanlines.mp = get_line (&lg, -1, 0, i, 0);
scanlines.bbp = LINE2 (framep, i + 2); scanlines.bbp = get_line (&lg, -1, 0, i, 2);
scanlines.t0 = LINE2 (frame0, i - 1); scanlines.t0 = get_line (&lg, 0, 0, i, -1);
scanlines.b0 = LINE2 (frame0, i + 1); scanlines.b0 = get_line (&lg, 0, 0, i, 1);
scanlines.tt1 = LINE2 (frame1, i - 2); scanlines.tt1 = get_line (&lg, 1, 0, i, -2);
scanlines.m1 = LINE2 (frame1, i); scanlines.m1 = get_line (&lg, 1, 0, i, 0);
scanlines.bb1 = LINE2 (frame1, i + 2); scanlines.bb1 = get_line (&lg, 1, 0, i, 2);
scanlines.t2 = LINE2 (frame2, i - 1); scanlines.t2 = get_line (&lg, 2, 0, i, -1);
scanlines.b2 = LINE2 (frame2, i + 1); scanlines.b2 = get_line (&lg, 2, 0, i, 1);
self->interpolate_scanline_packed (self, LINE (outframe, i), &scanlines, self->interpolate_scanline_packed (self, LINE (outframe, i), &scanlines,
frame_width); frame_width);
} }
#undef LINE #undef LINE
#undef LINE2
} }
} }
@ -450,8 +482,7 @@ gst_deinterlace_simple_method_copy_scanline_planar_v (GstDeinterlaceSimpleMethod
static void static void
gst_deinterlace_simple_method_deinterlace_frame_planar_plane gst_deinterlace_simple_method_deinterlace_frame_planar_plane
(GstDeinterlaceSimpleMethod * self, GstVideoFrame * dest, (GstDeinterlaceSimpleMethod * self, GstVideoFrame * dest,
const GstVideoFrame * frame0, const GstVideoFrame * frame1, LinesGetter * lg,
const GstVideoFrame * frame2, const GstVideoFrame * framep,
guint cur_field_flags, gint plane, guint cur_field_flags, gint plane,
GstDeinterlaceSimpleMethodFunction copy_scanline, GstDeinterlaceSimpleMethodFunction copy_scanline,
GstDeinterlaceSimpleMethodFunction interpolate_scanline) GstDeinterlaceSimpleMethodFunction interpolate_scanline)
@ -467,9 +498,8 @@ static void
g_assert (interpolate_scanline != NULL); g_assert (interpolate_scanline != NULL);
g_assert (copy_scanline != NULL); g_assert (copy_scanline != NULL);
#define LINE(x,i) (((guint8*)GST_VIDEO_FRAME_PLANE_DATA((x),plane)) + CLAMP_HI(CLAMP_LOW(i)) * \ #define LINE(x,i) (((guint8*)GST_VIDEO_FRAME_PLANE_DATA((x),plane)) + i * \
GST_VIDEO_FRAME_PLANE_STRIDE((x),plane)) GST_VIDEO_FRAME_PLANE_STRIDE((x),plane))
#define LINE2(x,i) ((x) ? LINE(x,i) : NULL)
for (i = 0; i < frame_height; i++) { for (i = 0; i < frame_height; i++) {
memset (&scanlines, 0, sizeof (scanlines)); memset (&scanlines, 0, sizeof (scanlines));
@ -477,41 +507,40 @@ static void
if (!((i & 1) ^ scanlines.bottom_field)) { if (!((i & 1) ^ scanlines.bottom_field)) {
/* copying */ /* copying */
scanlines.tp = LINE2 (framep, i - 1); scanlines.tp = get_line (lg, -1, plane, i, -1);
scanlines.bp = LINE2 (framep, i + 1); scanlines.bp = get_line (lg, -1, plane, i, 1);
scanlines.tt0 = LINE2 (frame0, i - 2); scanlines.tt0 = get_line (lg, 0, plane, i, -2);
scanlines.m0 = LINE2 (frame0, i); scanlines.m0 = get_line (lg, 0, plane, i, 0);
scanlines.bb0 = LINE2 (frame0, i + 2); scanlines.bb0 = get_line (lg, 0, plane, i, 2);
scanlines.t1 = LINE2 (frame1, i - 1); scanlines.t1 = get_line (lg, 1, plane, i, -1);
scanlines.b1 = LINE2 (frame1, i + 1); scanlines.b1 = get_line (lg, 1, plane, i, 1);
scanlines.tt2 = LINE2 (frame2, i - 2); scanlines.tt2 = get_line (lg, 2, plane, i, -2);
scanlines.m2 = LINE2 (frame2, i); scanlines.m2 = get_line (lg, 2, plane, i, 0);
scanlines.bb2 = LINE2 (frame2, i + 2); scanlines.bb2 = get_line (lg, 2, plane, i, 2);
copy_scanline (self, LINE (dest, i), &scanlines, frame_width); copy_scanline (self, LINE (dest, i), &scanlines, frame_width);
} else { } else {
/* interpolating */ /* interpolating */
scanlines.ttp = LINE2 (framep, i - 2); scanlines.ttp = get_line (lg, -1, plane, i, -2);
scanlines.mp = LINE2 (framep, i); scanlines.mp = get_line (lg, -1, plane, i, 0);
scanlines.bbp = LINE2 (framep, i + 2); scanlines.bbp = get_line (lg, -1, plane, i, 2);
scanlines.t0 = LINE2 (frame0, i - 1); scanlines.t0 = get_line (lg, 0, plane, i, -1);
scanlines.b0 = LINE2 (frame0, i + 1); scanlines.b0 = get_line (lg, 0, plane, i, 1);
scanlines.tt1 = LINE2 (frame1, i - 2); scanlines.tt1 = get_line (lg, 1, plane, i, -2);
scanlines.m1 = LINE2 (frame1, i); scanlines.m1 = get_line (lg, 1, plane, i, 0);
scanlines.bb1 = LINE2 (frame1, i + 2); scanlines.bb1 = get_line (lg, 1, plane, i, 2);
scanlines.t2 = LINE2 (frame2, i - 1); scanlines.t2 = get_line (lg, 2, plane, i, -1);
scanlines.b2 = LINE2 (frame2, i + 1); scanlines.b2 = get_line (lg, 2, plane, i, 1);
interpolate_scanline (self, LINE (dest, i), &scanlines, frame_width); interpolate_scanline (self, LINE (dest, i), &scanlines, frame_width);
} }
#undef LINE #undef LINE
#undef LINE2
} }
} }
@ -524,11 +553,11 @@ gst_deinterlace_simple_method_deinterlace_frame_planar (GstDeinterlaceMethod *
#ifndef G_DISABLE_ASSERT #ifndef G_DISABLE_ASSERT
GstDeinterlaceMethodClass *dm_class = GST_DEINTERLACE_METHOD_GET_CLASS (self); GstDeinterlaceMethodClass *dm_class = GST_DEINTERLACE_METHOD_GET_CLASS (self);
#endif #endif
const GstVideoFrame *frame0, *frame1, *frame2, *framep;
guint cur_field_flags = history[cur_field_idx].flags; guint cur_field_flags = history[cur_field_idx].flags;
gint i; gint i;
GstDeinterlaceSimpleMethodFunction copy_scanline; GstDeinterlaceSimpleMethodFunction copy_scanline;
GstDeinterlaceSimpleMethodFunction interpolate_scanline; GstDeinterlaceSimpleMethodFunction interpolate_scanline;
LinesGetter lg = { history, history_count, cur_field_idx };
g_assert (self->interpolate_scanline_planar[0] != NULL); g_assert (self->interpolate_scanline_planar[0] != NULL);
g_assert (self->interpolate_scanline_planar[1] != NULL); g_assert (self->interpolate_scanline_planar[1] != NULL);
@ -536,27 +565,14 @@ gst_deinterlace_simple_method_deinterlace_frame_planar (GstDeinterlaceMethod *
g_assert (self->copy_scanline_planar[0] != NULL); g_assert (self->copy_scanline_planar[0] != NULL);
g_assert (self->copy_scanline_planar[1] != NULL); g_assert (self->copy_scanline_planar[1] != NULL);
g_assert (self->copy_scanline_planar[2] != NULL); g_assert (self->copy_scanline_planar[2] != NULL);
g_assert (dm_class->fields_required <= 4);
for (i = 0; i < 3; i++) { for (i = 0; i < 3; i++) {
copy_scanline = self->copy_scanline_planar[i]; copy_scanline = self->copy_scanline_planar[i];
interpolate_scanline = self->interpolate_scanline_planar[i]; interpolate_scanline = self->interpolate_scanline_planar[i];
framep = (cur_field_idx > 0 ? history[cur_field_idx - 1].frame : NULL);
frame0 = history[cur_field_idx].frame;
g_assert (dm_class->fields_required <= 4);
frame1 =
(cur_field_idx + 1 <
history_count ? history[cur_field_idx + 1].frame : NULL);
frame2 =
(cur_field_idx + 2 <
history_count ? history[cur_field_idx + 2].frame : NULL);
gst_deinterlace_simple_method_deinterlace_frame_planar_plane (self, gst_deinterlace_simple_method_deinterlace_frame_planar_plane (self,
outframe, frame0, frame1, frame2, framep, cur_field_flags, i, outframe, &lg, cur_field_flags, i, copy_scanline, interpolate_scanline);
copy_scanline, interpolate_scanline);
} }
} }
@ -569,29 +585,17 @@ gst_deinterlace_simple_method_deinterlace_frame_nv12 (GstDeinterlaceMethod *
#ifndef G_DISABLE_ASSERT #ifndef G_DISABLE_ASSERT
GstDeinterlaceMethodClass *dm_class = GST_DEINTERLACE_METHOD_GET_CLASS (self); GstDeinterlaceMethodClass *dm_class = GST_DEINTERLACE_METHOD_GET_CLASS (self);
#endif #endif
const GstVideoFrame *frame0, *frame1, *frame2, *framep;
guint cur_field_flags = history[cur_field_idx].flags; guint cur_field_flags = history[cur_field_idx].flags;
gint i; gint i;
LinesGetter lg = { history, history_count, cur_field_idx, };
g_assert (self->interpolate_scanline_packed != NULL); g_assert (self->interpolate_scanline_packed != NULL);
g_assert (self->copy_scanline_packed != NULL); g_assert (self->copy_scanline_packed != NULL);
g_assert (dm_class->fields_required <= 4);
for (i = 0; i < 2; i++) { for (i = 0; i < 2; i++) {
framep = (cur_field_idx > 0 ? history[cur_field_idx - 1].frame : NULL);
frame0 = history[cur_field_idx].frame;
g_assert (dm_class->fields_required <= 4);
frame1 =
(cur_field_idx + 1 <
history_count ? history[cur_field_idx + 1].frame : NULL);
frame2 =
(cur_field_idx + 2 <
history_count ? history[cur_field_idx + 2].frame : NULL);
gst_deinterlace_simple_method_deinterlace_frame_planar_plane (self, gst_deinterlace_simple_method_deinterlace_frame_planar_plane (self,
outframe, frame0, frame1, frame2, framep, cur_field_flags, i, outframe, &lg, cur_field_flags, i,
self->copy_scanline_packed, self->interpolate_scanline_packed); self->copy_scanline_packed, self->interpolate_scanline_packed);
} }
} }