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htt-video/gst-patch/ayuv64-lanczos.patch

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From e4f01106d08f3c2a65897bfe919bd65ce55545a8 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Wed, 25 Jan 2012 23:49:00 +0000
Subject: videoscale: Add AYUV64 path to Lanczos
---
diff --git a/gst/videoscale/gstvideoscale.c b/gst/videoscale/gstvideoscale.c
index 7b44647..6df4ba6 100644
--- a/gst/videoscale/gstvideoscale.c
+++ b/gst/videoscale/gstvideoscale.c
@@ -1199,6 +1199,11 @@ gst_video_scale_transform (GstBaseTransform * trans, GstBuffer * in,
case GST_VIDEO_SCALE_4TAP:
vs_image_scale_4tap_AYUV64 (&dest, &src, videoscale->tmp_buf);
break;
+ case GST_VIDEO_SCALE_LANCZOS:
+ vs_image_scale_lanczos_AYUV64 (&dest, &src, videoscale->tmp_buf,
+ videoscale->sharpness, videoscale->dither, videoscale->submethod,
+ videoscale->envelope, videoscale->sharpen);
+ break;
default:
goto unknown_mode;
}
diff --git a/gst/videoscale/vs_image.h b/gst/videoscale/vs_image.h
index 2312acc..7b34991 100644
--- a/gst/videoscale/vs_image.h
+++ b/gst/videoscale/vs_image.h
@@ -52,6 +52,9 @@ void vs_image_scale_linear_RGBA (const VSImage *dest, const VSImage *src,
void vs_image_scale_lanczos_AYUV (const VSImage * dest, const VSImage * src,
uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
double a, double sharpen);
+void vs_image_scale_lanczos_AYUV64 (const VSImage * dest, const VSImage * src,
+ uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
+ double a, double sharpen);
void vs_image_scale_nearest_RGB (const VSImage *dest, const VSImage *src,
uint8_t *tmpbuf);
diff --git a/gst/videoscale/vs_lanczos.c b/gst/videoscale/vs_lanczos.c
index 1c87ba3..d141a01 100644
--- a/gst/videoscale/vs_lanczos.c
+++ b/gst/videoscale/vs_lanczos.c
@@ -204,6 +204,9 @@ static void vs_image_scale_lanczos_AYUV_float (const VSImage * dest,
static void vs_image_scale_lanczos_AYUV_double (const VSImage * dest,
const VSImage * src, uint8_t * tmpbuf, double sharpness, gboolean dither,
double a, double sharpen);
+static void vs_image_scale_lanczos_AYUV64_double (const VSImage * dest,
+ const VSImage * src, uint8_t * tmpbuf, double sharpness, gboolean dither,
+ double a, double sharpen);
static double
sinc (double x)
@@ -590,6 +593,15 @@ vs_image_scale_lanczos_AYUV (const VSImage * dest, const VSImage * src,
}
}
+void
+vs_image_scale_lanczos_AYUV64 (const VSImage * dest, const VSImage * src,
+ uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
+ double a, double sharpen)
+{
+ vs_image_scale_lanczos_AYUV64_double (dest, src, tmpbuf, sharpness, dither,
+ a, sharpen);
+}
+
#define RESAMPLE_HORIZ_FLOAT(function, dest_type, tap_type, src_type, _n_taps) \
@@ -813,9 +825,9 @@ RESAMPLE_VERT_DITHER (resample_vert_dither_int16_generic, gint16, gint16,
n_taps, shift)
/* *INDENT-ON* */
-#define RESAMPLE_VERT_FLOAT(function, tap_type, src_type, _n_taps, _shift) \
+#define RESAMPLE_VERT_FLOAT(function, dest_type, clamp, tap_type, src_type, _n_taps, _shift) \
static void \
-function (guint8 *dest, \
+function (dest_type *dest, \
const tap_type *taps, const src_type *src, int stride, int n_taps, \
int shift, int n) \
{ \
@@ -828,13 +840,13 @@ function (guint8 *dest, \
const src_type *line = PTR_OFFSET(src, stride * l); \
sum_y += line[i] * taps[l]; \
} \
- dest[i] = CLAMP (floor(0.5 + sum_y), 0, 255); \
+ dest[i] = CLAMP (floor(0.5 + sum_y), 0, clamp); \
} \
}
-#define RESAMPLE_VERT_FLOAT_DITHER(function, tap_type, src_type, _n_taps, _shift) \
+#define RESAMPLE_VERT_FLOAT_DITHER(function, dest_type, clamp, tap_type, src_type, _n_taps, _shift) \
static void \
-function (guint8 *dest, \
+function (dest_type *dest, \
const tap_type *taps, const src_type *src, int stride, int n_taps, \
int shift, int n) \
{ \
@@ -849,19 +861,24 @@ function (guint8 *dest, \
sum_y += line[i] * taps[l]; \
} \
err_y += sum_y; \
- dest[i] = CLAMP (floor (err_y), 0, 255); \
+ dest[i] = CLAMP (floor (err_y), 0, clamp); \
err_y -= floor (err_y); \
} \
}
/* *INDENT-OFF* */
-RESAMPLE_VERT_FLOAT (resample_vert_double_generic, double, double, n_taps,
+RESAMPLE_VERT_FLOAT (resample_vert_double_generic, guint8, 255, double, double, n_taps,
shift)
-RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic, double, double,
+RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic, guint8, 255, double, double,
n_taps, shift)
-RESAMPLE_VERT_FLOAT (resample_vert_float_generic, float, float, n_taps, shift)
-RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_float_generic, float, float,
+RESAMPLE_VERT_FLOAT (resample_vert_double_generic_u16, guint16, 65535, double, double, n_taps,
+ shift)
+RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic_u16, guint16, 65535, double, double,
+ n_taps, shift)
+
+RESAMPLE_VERT_FLOAT (resample_vert_float_generic, guint8, 255, float, float, n_taps, shift)
+RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_float_generic, guint8, 255, float, float,
n_taps, shift)
/* *INDENT-ON* */
@@ -1556,3 +1573,77 @@ vs_image_scale_lanczos_AYUV_float (const VSImage * dest, const VSImage * src,
scale1d_cleanup (&scale->y_scale1d);
g_free (scale->tmpdata);
}
+
+static void
+vs_scale_lanczos_AYUV64_double (Scale * scale)
+{
+ int j;
+ int yi;
+ int tmp_yi;
+
+ tmp_yi = 0;
+
+ for (j = 0; j < scale->dest->height; j++) {
+ guint16 *destline;
+ double *taps;
+
+ destline = (guint16 *) (scale->dest->pixels + scale->dest->stride * j);
+
+ yi = scale->y_scale1d.offsets[j];
+
+ while (tmp_yi < yi + scale->y_scale1d.n_taps) {
+ scale->horiz_resample_func (TMP_LINE_DOUBLE_AYUV (tmp_yi),
+ scale->x_scale1d.offsets, scale->x_scale1d.taps, SRC_LINE (tmp_yi),
+ scale->x_scale1d.n_taps, 0, scale->dest->width);
+ tmp_yi++;
+ }
+
+ taps = (double *) scale->y_scale1d.taps + j * scale->y_scale1d.n_taps;
+ if (scale->dither) {
+ resample_vert_dither_double_generic_u16 (destline,
+ taps, TMP_LINE_DOUBLE_AYUV (scale->y_scale1d.offsets[j]),
+ sizeof (double) * 4 * scale->dest->width,
+ scale->y_scale1d.n_taps, 0, scale->dest->width * 4);
+ } else {
+ resample_vert_double_generic_u16 (destline,
+ taps, TMP_LINE_DOUBLE_AYUV (scale->y_scale1d.offsets[j]),
+ sizeof (double) * 4 * scale->dest->width,
+ scale->y_scale1d.n_taps, 0, scale->dest->width * 4);
+ }
+ }
+}
+
+void
+vs_image_scale_lanczos_AYUV64_double (const VSImage * dest, const VSImage * src,
+ uint8_t * tmpbuf, double sharpness, gboolean dither, double a,
+ double sharpen)
+{
+ Scale s = { 0 };
+ Scale *scale = &s;
+ int n_taps;
+
+ scale->dest = dest;
+ scale->src = src;
+
+ n_taps = scale1d_get_n_taps (src->width, dest->width, a, sharpness);
+ scale1d_calculate_taps (&scale->x_scale1d,
+ src->width, dest->width, n_taps, a, sharpness, sharpen);
+
+ n_taps = scale1d_get_n_taps (src->height, dest->height, a, sharpness);
+ scale1d_calculate_taps (&scale->y_scale1d,
+ src->height, dest->height, n_taps, a, sharpness, sharpen);
+
+ scale->dither = dither;
+
+ scale->horiz_resample_func =
+ (HorizResampleFunc) resample_horiz_double_ayuv_generic;
+
+ scale->tmpdata =
+ g_malloc (sizeof (double) * scale->dest->width * scale->src->height * 4);
+
+ vs_scale_lanczos_AYUV64_double (scale);
+
+ scale1d_cleanup (&scale->x_scale1d);
+ scale1d_cleanup (&scale->y_scale1d);
+ g_free (scale->tmpdata);
+}
--
cgit v0.9.0.2-2-gbebe
From f8dc679ca7e9542e6f410062df5e332fc8e0ba9d Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Sun, 19 Feb 2012 08:03:03 +0000
Subject: videoscale: fix AYUV64 scaling
---
diff --git a/gst/videoscale/vs_lanczos.c b/gst/videoscale/vs_lanczos.c
index d141a01..67cd401 100644
--- a/gst/videoscale/vs_lanczos.c
+++ b/gst/videoscale/vs_lanczos.c
@@ -728,6 +728,9 @@ RESAMPLE_HORIZ_AYUV_FLOAT (resample_horiz_double_ayuv_generic, double, double,
RESAMPLE_HORIZ_AYUV_FLOAT (resample_horiz_float_ayuv_generic, float, float,
guint8, n_taps)
+RESAMPLE_HORIZ_AYUV_FLOAT (resample_horiz_double_ayuv_generic_s16, double, double,
+ guint16, n_taps)
+
RESAMPLE_HORIZ (resample_horiz_int32_int32_u8_generic, gint32, gint32,
guint8, n_taps, shift)
RESAMPLE_HORIZ (resample_horiz_int16_int16_u8_generic, gint16, gint16,
@@ -1636,7 +1639,7 @@ vs_image_scale_lanczos_AYUV64_double (const VSImage * dest, const VSImage * src,
scale->dither = dither;
scale->horiz_resample_func =
- (HorizResampleFunc) resample_horiz_double_ayuv_generic;
+ (HorizResampleFunc) resample_horiz_double_ayuv_generic_s16;
scale->tmpdata =
g_malloc (sizeof (double) * scale->dest->width * scale->src->height * 4);
--
cgit v0.9.0.2-2-gbebe
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