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