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gstreamer/sys/d3d11/gstd3d11colorconvert.c
Seungha Yang 10f622aa5d d3d11convert: Use ID3D11VideoProcessor only if device supports colorspace 
Check whether conversion with given combination of input/output
format and dxgi colorspace is supported or not by driver.
If not, we should use shader.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1723>
2020-10-27 16:20:49 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) 2005-2012 David Schleef <ds@schleef.org>
* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.com>
* Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) <2019> Jeongki Kim <jeongki.kim@jeongki.kim>
* Copyright (C) 2020 Thibault Saunier <tsaunier@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-d3d11convert
* @title: d3d11colorconvert
*
* This element resizes video frames and change color space.
* By default the element will try to negotiate to the same size on the source
* and sinkpad so that no scaling is needed.
* It is therefore safe to insert this element in a pipeline to
* get more robust behaviour without any cost if no scaling is needed.
*
* ## Example launch line
* |[
* gst-launch-1.0 -v videotestsrc ! video/x-raw,format=NV12 ! d3d11upload ! d3d11convert ! d3d11videosink
* ]|
* This will output a test video (generated in NV12 format) in a video
* window. If the video sink selected does not support NV12
* d3d11colorconvert will automatically convert the video to a format understood
* by the video sink.
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstd3d11colorconvert.h"
#include "gstd3d11colorconverter.h"
#include "gstd3d11utils.h"
#include "gstd3d11memory.h"
#include "gstd3d11device.h"
#include "gstd3d11bufferpool.h"
#include "gstd3d11videoprocessor.h"
#include "gstd3d11format.h"
GST_DEBUG_CATEGORY_STATIC (gst_d3d11_convert_debug);
#define GST_CAT_DEFAULT gst_d3d11_convert_debug
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_SINK_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SINK_FORMATS))
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_SRC_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SRC_FORMATS))
);
struct _GstD3D11Convert
{
GstD3D11BaseFilter parent;
const GstD3D11Format *in_d3d11_format;
const GstD3D11Format *out_d3d11_format;
ID3D11Texture2D *in_texture[GST_VIDEO_MAX_PLANES];
ID3D11ShaderResourceView *shader_resource_view[GST_VIDEO_MAX_PLANES];
guint num_input_view;
ID3D11Texture2D *out_texture[GST_VIDEO_MAX_PLANES];
ID3D11RenderTargetView *render_target_view[GST_VIDEO_MAX_PLANES];
guint num_output_view;
GstD3D11ColorConverter *converter;
GstD3D11VideoProcessor *processor;
/* used for fallback texture copy */
D3D11_BOX in_src_box;
D3D11_BOX out_src_box;
};
struct _GstD3D11ColorConvert
{
GstD3D11Convert parent;
};
struct _GstD3D11Scale
{
GstD3D11Convert parent;
};
#define gst_d3d11_convert_parent_class parent_class
G_DEFINE_TYPE (GstD3D11Convert, gst_d3d11_convert, GST_TYPE_D3D11_BASE_FILTER);
static void gst_d3d11_convert_dispose (GObject * object);
static GstCaps *gst_d3d11_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_d3d11_convert_fixate_caps (GstBaseTransform *
base, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean gst_d3d11_convert_filter_meta (GstBaseTransform * trans,
GstQuery * query, GType api, const GstStructure * params);
static gboolean
gst_d3d11_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query);
static gboolean
gst_d3d11_convert_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static GstFlowReturn gst_d3d11_convert_transform (GstBaseTransform *
trans, GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_d3d11_convert_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
/* copies the given caps */
static GstCaps *
gst_d3d11_convert_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_d3d11_convert_caps_rangify_size_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_set (st, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (st, "pixel-aspect-ratio")) {
gst_structure_set (st, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_d3d11_convert_caps_remove_format_and_rangify_size_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_set (st, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (st, "pixel-aspect-ratio")) {
gst_structure_set (st, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static void
gst_d3d11_convert_class_init (GstD3D11ConvertClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstD3D11BaseFilterClass *bfilter_class = GST_D3D11_BASE_FILTER_CLASS (klass);
gobject_class->dispose = gst_d3d11_convert_dispose;
gst_element_class_add_static_pad_template (element_class, &sink_template);
gst_element_class_add_static_pad_template (element_class, &src_template);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 colorspace converter and scaler",
"Filter/Converter/Scaler/Video/Hardware",
"Resizes video and allow color conversion using D3D11",
"Seungha Yang <seungha.yang@navercorp.com>, "
"Jeongki Kim <jeongki.kim@jeongki.kim>");
trans_class->passthrough_on_same_caps = TRUE;
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_convert_transform_caps);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_d3d11_convert_fixate_caps);
trans_class->filter_meta = GST_DEBUG_FUNCPTR (gst_d3d11_convert_filter_meta);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_convert_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_convert_decide_allocation);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_d3d11_convert_transform);
bfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_d3d11_convert_set_info);
GST_DEBUG_CATEGORY_INIT (gst_d3d11_convert_debug,
"d3d11convert", 0, "d3d11convert element");
}
static void
gst_d3d11_convert_init (GstD3D11Convert * self)
{
}
static void
gst_d3d11_convert_clear_shader_resource (GstD3D11Convert * self)
{
gint i;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (self->shader_resource_view[i]) {
ID3D11ShaderResourceView_Release (self->shader_resource_view[i]);
self->shader_resource_view[i] = NULL;
}
if (self->render_target_view[i]) {
ID3D11RenderTargetView_Release (self->render_target_view[i]);
self->render_target_view[i] = NULL;
}
}
self->num_input_view = 0;
self->num_output_view = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (self->in_texture[i]) {
ID3D11Texture2D_Release (self->in_texture[i]);
self->in_texture[i] = NULL;
}
if (self->out_texture[i]) {
ID3D11Texture2D_Release (self->out_texture[i]);
self->out_texture[i] = NULL;
}
}
g_clear_pointer (&self->converter, gst_d3d11_color_converter_free);
g_clear_pointer (&self->processor, gst_d3d11_video_processor_free);
}
static void
gst_d3d11_convert_dispose (GObject * object)
{
GstD3D11Convert *self = GST_D3D11_CONVERT (object);
gst_d3d11_convert_clear_shader_resource (self);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstCaps *
gst_d3d11_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_d3d11_convert_caps_remove_format_and_rangify_size_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
/*
* This is an incomplete matrix of in formats and a score for the prefered output
* format.
*
* out: RGB24 RGB16 ARGB AYUV YUV444 YUV422 YUV420 YUV411 YUV410 PAL GRAY
* in
* RGB24 0 2 1 2 2 3 4 5 6 7 8
* RGB16 1 0 1 2 2 3 4 5 6 7 8
* ARGB 2 3 0 1 4 5 6 7 8 9 10
* AYUV 3 4 1 0 2 5 6 7 8 9 10
* YUV444 2 4 3 1 0 5 6 7 8 9 10
* YUV422 3 5 4 2 1 0 6 7 8 9 10
* YUV420 4 6 5 3 2 1 0 7 8 9 10
* YUV411 4 6 5 3 2 1 7 0 8 9 10
* YUV410 6 8 7 5 4 3 2 1 0 9 10
* PAL 1 3 2 6 4 6 7 8 9 0 10
* GRAY 1 4 3 2 1 5 6 7 8 9 0
*
* PAL or GRAY are never prefered, if we can we would convert to PAL instead
* of GRAY, though
* less subsampling is prefered and if any, preferably horizontal
* We would like to keep the alpha, even if we would need to to colorspace conversion
* or lose depth.
*/
#define SCORE_FORMAT_CHANGE 1
#define SCORE_DEPTH_CHANGE 1
#define SCORE_ALPHA_CHANGE 1
#define SCORE_CHROMA_W_CHANGE 1
#define SCORE_CHROMA_H_CHANGE 1
#define SCORE_PALETTE_CHANGE 1
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
#define SCORE_DEPTH_LOSS 4 /* change bit depth */
#define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */
#define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */
#define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */
#define SCORE_PALETTE_LOSS 64 /* convert to palette format */
#define SCORE_COLOR_LOSS 128 /* convert to GRAY */
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
#define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA)
#define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE)
/* calculate how much loss a conversion would be */
static void
score_value (GstBaseTransform * base, const GstVideoFormatInfo * in_info,
const GValue * val, gint * min_loss, const GstVideoFormatInfo ** out_info)
{
const gchar *fname;
const GstVideoFormatInfo *t_info;
GstVideoFormatFlags in_flags, t_flags;
gint loss;
fname = g_value_get_string (val);
t_info = gst_video_format_get_info (gst_video_format_from_string (fname));
if (!t_info || t_info->format == GST_VIDEO_FORMAT_UNKNOWN)
return;
/* accept input format immediately without loss */
if (in_info == t_info) {
*min_loss = 0;
*out_info = t_info;
return;
}
loss = SCORE_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) {
loss += SCORE_PALETTE_CHANGE;
if (t_flags & PALETTE_MASK)
loss += SCORE_PALETTE_LOSS;
}
if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
loss += SCORE_COLORSPACE_LOSS;
if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
loss += SCORE_COLOR_LOSS;
}
if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) {
loss += SCORE_ALPHA_CHANGE;
if (in_flags & ALPHA_MASK)
loss += SCORE_ALPHA_LOSS;
}
if ((in_info->h_sub[1]) != (t_info->h_sub[1])) {
loss += SCORE_CHROMA_H_CHANGE;
if ((in_info->h_sub[1]) < (t_info->h_sub[1]))
loss += SCORE_CHROMA_H_LOSS;
}
if ((in_info->w_sub[1]) != (t_info->w_sub[1])) {
loss += SCORE_CHROMA_W_CHANGE;
if ((in_info->w_sub[1]) < (t_info->w_sub[1]))
loss += SCORE_CHROMA_W_LOSS;
}
if ((in_info->bits) != (t_info->bits)) {
loss += SCORE_DEPTH_CHANGE;
if ((in_info->bits) > (t_info->bits))
loss += SCORE_DEPTH_LOSS + (in_info->bits - t_info->bits);
}
GST_DEBUG_OBJECT (base, "score %s -> %s = %d",
GST_VIDEO_FORMAT_INFO_NAME (in_info),
GST_VIDEO_FORMAT_INFO_NAME (t_info), loss);
if (loss < *min_loss) {
GST_DEBUG_OBJECT (base, "found new best %d", loss);
*out_info = t_info;
*min_loss = loss;
}
}
static void
gst_d3d11_convert_fixate_format (GstBaseTransform * trans,
GstCaps * caps, GstCaps * result)
{
GstStructure *ins, *outs;
const gchar *in_format;
const GstVideoFormatInfo *in_info, *out_info = NULL;
gint min_loss = G_MAXINT;
guint i, capslen;
ins = gst_caps_get_structure (caps, 0);
in_format = gst_structure_get_string (ins, "format");
if (!in_format) {
return;
}
GST_DEBUG_OBJECT (trans, "source format %s", in_format);
in_info =
gst_video_format_get_info (gst_video_format_from_string (in_format));
if (!in_info)
return;
outs = gst_caps_get_structure (result, 0);
capslen = gst_caps_get_size (result);
GST_DEBUG ("iterate %d structures", capslen);
for (i = 0; i < capslen; i++) {
GstStructure *tests;
const GValue *format;
tests = gst_caps_get_structure (result, i);
format = gst_structure_get_value (tests, "format");
/* should not happen */
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG_OBJECT (trans, "have %d formats", len);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
score_value (trans, in_info, val, &min_loss, &out_info);
if (min_loss == 0)
break;
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
score_value (trans, in_info, format, &min_loss, &out_info);
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
}
static GstCaps *
gst_d3d11_convert_get_fixed_format (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *result;
result = gst_caps_intersect (othercaps, caps);
if (gst_caps_is_empty (result)) {
gst_caps_unref (result);
result = gst_caps_copy (othercaps);
}
gst_d3d11_convert_fixate_format (trans, caps, result);
/* fixate remaining fields */
result = gst_caps_fixate (result);
if (direction == GST_PAD_SINK) {
if (gst_caps_is_subset (caps, result)) {
gst_caps_replace (&result, caps);
}
}
return result;
}
static GstCaps *
gst_d3d11_convert_fixate_size (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstStructure *ins, *outs;
const GValue *from_par, *to_par;
GValue fpar = { 0, }, tpar = {
0,};
othercaps = gst_caps_truncate (othercaps);
othercaps = gst_caps_make_writable (othercaps);
ins = gst_caps_get_structure (caps, 0);
outs = gst_caps_get_structure (othercaps, 0);
from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
/* If we're fixating from the sinkpad we always set the PAR and
* assume that missing PAR on the sinkpad means 1/1 and
* missing PAR on the srcpad means undefined
*/
if (direction == GST_PAD_SINK) {
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION_RANGE);
gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1);
to_par = &tpar;
}
} else {
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&tpar, 1, 1);
to_par = &tpar;
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
NULL);
}
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
}
/* we have both PAR but they might not be fixated */
{
gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
gint w = 0, h = 0;
gint from_dar_n, from_dar_d;
gint num, den;
/* from_par should be fixed */
g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
gst_structure_get_int (outs, "width", &w);
gst_structure_get_int (outs, "height", &h);
/* if both width and height are already fixed, we can't do anything
* about it anymore */
if (w && h) {
guint n, d;
GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
w, h);
if (!gst_value_is_fixed (to_par)) {
if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
from_par_n, from_par_d, w, h)) {
GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", n, d);
if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", n, d);
else if (n != d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
n, d, NULL);
}
}
goto done;
}
/* Calculate input DAR */
if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
&from_dar_n, &from_dar_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
GST_DEBUG_OBJECT (base, "Input DAR is %d/%d", from_dar_n, from_dar_d);
/* If either width or height are fixed there's not much we
* can do either except choosing a height or width and PAR
* that matches the DAR as good as possible
*/
if (h) {
GstStructure *tmp;
gint set_w, set_par_n, set_par_d;
GST_DEBUG_OBJECT (base, "height is fixed (%d)", h);
/* If the PAR is fixed too, there's not much to do
* except choosing the width that is nearest to the
* width with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input width */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "width", G_TYPE_INT, set_w,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the width to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (w) {
GstStructure *tmp;
gint set_h, set_par_n, set_par_d;
GST_DEBUG_OBJECT (base, "width is fixed (%d)", w);
/* If the PAR is fixed too, there's not much to do
* except choosing the height that is nearest to the
* height with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input height */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "height", G_TYPE_INT, set_h,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the height to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scale sized - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (gst_value_is_fixed (to_par)) {
GstStructure *tmp;
gint set_h, set_w, f_h, f_w;
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
/* Calculate scale factor for the PAR change */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
to_par_d, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
/* Try to keep the input height (because of interlacing) */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &set_w);
gst_structure_free (tmp);
/* We kept the DAR and the height is nearest to the original height */
if (set_w == w) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
f_h = set_h;
f_w = set_w;
/* If the former failed, try to keep the input width at least */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_free (tmp);
/* We kept the DAR and the width is nearest to the original width */
if (set_h == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
/* If all this failed, keep the dimensions with the DAR that was closest
* to the correct DAR. This changes the DAR but there's not much else to
* do here.
*/
if (set_w * ABS (set_h - h) < ABS (f_w - w) * f_h) {
f_h = set_h;
f_w = set_w;
}
gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
f_h, NULL);
goto done;
} else {
GstStructure *tmp;
gint set_h, set_w, set_par_n, set_par_d, tmp2;
/* width, height and PAR are not fixed but passthrough is not possible */
/* First try to keep the height and width as good as possible
* and scale PAR */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
if (set_par_n == to_par_n && set_par_d == to_par_d) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* Otherwise try to scale width to keep the DAR with the set
* PAR and height */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &tmp2);
gst_structure_free (tmp);
if (tmp2 == w) {
gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* ... or try the same with the height */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &tmp2);
gst_structure_free (tmp);
if (tmp2 == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, tmp2, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* If all fails we can't keep the DAR and take the nearest values
* for everything from the first try */
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
}
}
done:
if (from_par == &fpar)
g_value_unset (&fpar);
if (to_par == &tpar)
g_value_unset (&tpar);
return othercaps;
}
static GstCaps *
gst_d3d11_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *format = NULL;
GST_DEBUG_OBJECT (base,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
format = gst_d3d11_convert_get_fixed_format (base, direction, caps,
othercaps);
if (gst_caps_is_empty (format)) {
GST_ERROR_OBJECT (base, "Could not convert formats");
return format;
}
/* convert mode is "all" or "size" here */
othercaps = gst_d3d11_convert_fixate_size (base, direction, caps, othercaps);
if (gst_caps_get_size (othercaps) == 1) {
gint i;
const gchar *format_fields[] = { "format", "colorimetry", "chroma-site" };
GstStructure *format_struct = gst_caps_get_structure (format, 0);
GstStructure *fixated_struct;
othercaps = gst_caps_make_writable (othercaps);
fixated_struct = gst_caps_get_structure (othercaps, 0);
for (i = 0; i < G_N_ELEMENTS (format_fields); i++) {
if (gst_structure_has_field (format_struct, format_fields[i])) {
gst_structure_set (fixated_struct, format_fields[i], G_TYPE_STRING,
gst_structure_get_string (format_struct, format_fields[i]), NULL);
} else {
gst_structure_remove_field (fixated_struct, format_fields[i]);
}
}
}
gst_caps_unref (format);
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
static gboolean
gst_d3d11_convert_filter_meta (GstBaseTransform * trans,
GstQuery * query, GType api, const GstStructure * params)
{
/* This element cannot passthrough the crop meta, because it would convert the
* wrong sub-region of the image, and worst, our output image may not be large
* enough for the crop to be applied later */
if (api == GST_VIDEO_CROP_META_API_TYPE)
return FALSE;
/* propose all other metadata upstream */
return TRUE;
}
static gboolean
gst_d3d11_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint n_pools, i;
GstStructure *config;
guint size;
GstD3D11AllocationParams *d3d11_params;
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query))
return FALSE;
/* passthrough, we're done */
if (decide_query == NULL)
return TRUE;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
n_pools = gst_query_get_n_allocation_pools (query);
for (i = 0; i < n_pools; i++) {
gst_query_parse_nth_allocation_pool (query, i, &pool, NULL, NULL, NULL);
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
}
if (!pool)
pool = gst_d3d11_buffer_pool_new (filter->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (filter->device, &info, 0,
D3D11_BIND_SHADER_RESOURCE);
} else {
/* Set bind flag */
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&info); i++) {
d3d11_params->desc[i].BindFlags |= D3D11_BIND_SHADER_RESOURCE;
}
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
/* size will be updated by d3d11 buffer pool */
gst_buffer_pool_config_set_params (config, caps, 0, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
size = GST_D3D11_BUFFER_POOL (pool)->buffer_size;
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
return TRUE;
/* ERRORS */
config_failed:
{
GST_ERROR_OBJECT (filter, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_d3d11_convert_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min = 0, max = 0;
GstStructure *config;
GstD3D11AllocationParams *d3d11_params;
gboolean update_pool = FALSE;
GstVideoInfo info;
gint i;
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
if (!gst_video_info_from_caps (&info, outcaps))
return FALSE;
size = GST_VIDEO_INFO_SIZE (&info);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool && !GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
update_pool = TRUE;
}
if (!pool)
pool = gst_d3d11_buffer_pool_new (filter->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (filter->device, &info, 0,
D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
} else {
/* Set bind flag */
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&info); i++) {
d3d11_params->desc[i].BindFlags |=
(D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
}
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_set_config (pool, config);
size = GST_D3D11_BUFFER_POOL (pool)->buffer_size;
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
}
static gboolean
create_shader_input_resource (GstD3D11Convert * self,
GstD3D11Device * device, const GstD3D11Format * format, GstVideoInfo * info)
{
D3D11_TEXTURE2D_DESC texture_desc = { 0, };
D3D11_SHADER_RESOURCE_VIEW_DESC view_desc = { 0 };
HRESULT hr;
ID3D11Device *device_handle;
ID3D11Texture2D *tex[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11ShaderResourceView *view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i;
if (self->num_input_view)
return TRUE;
device_handle = gst_d3d11_device_get_device_handle (device);
texture_desc.MipLevels = 1;
texture_desc.ArraySize = 1;
texture_desc.SampleDesc.Count = 1;
texture_desc.SampleDesc.Quality = 0;
texture_desc.Usage = D3D11_USAGE_DEFAULT;
texture_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
if (format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
texture_desc.Width = GST_VIDEO_INFO_COMP_WIDTH (info, i);
texture_desc.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
texture_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
}
} else {
gboolean is_semiplanar = FALSE;
if (format->dxgi_format == DXGI_FORMAT_NV12 ||
format->dxgi_format == DXGI_FORMAT_P010 ||
format->dxgi_format == DXGI_FORMAT_P016)
is_semiplanar = TRUE;
texture_desc.Width = GST_VIDEO_INFO_WIDTH (info);
texture_desc.Height = GST_VIDEO_INFO_HEIGHT (info);
texture_desc.Format = format->dxgi_format;
/* semiplanar format resolution of should be even number */
if (is_semiplanar) {
texture_desc.Width = GST_ROUND_UP_2 (texture_desc.Width);
texture_desc.Height = GST_ROUND_UP_2 (texture_desc.Height);
}
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[0]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
if (is_semiplanar) {
ID3D11Resource_AddRef (tex[0]);
tex[1] = tex[0];
}
}
view_desc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
view_desc.Texture2D.MipLevels = 1;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
view_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateShaderResourceView (device_handle,
(ID3D11Resource *) tex[i], &view_desc, &view[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self,
"Failed to create resource view (0x%x)", (guint) hr);
goto error;
}
}
self->num_input_view = i;
GST_DEBUG_OBJECT (self,
"%d shader resource view created", self->num_input_view);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
self->in_texture[i] = tex[i];
self->shader_resource_view[i] = view[i];
}
return TRUE;
error:
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (view[i])
ID3D11ShaderResourceView_Release (view[i]);
}
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (tex[i])
ID3D11Texture2D_Release (tex[i]);
}
return FALSE;
}
static gboolean
create_shader_output_resource (GstD3D11Convert * self,
GstD3D11Device * device, const GstD3D11Format * format, GstVideoInfo * info)
{
D3D11_TEXTURE2D_DESC texture_desc = { 0, };
D3D11_RENDER_TARGET_VIEW_DESC view_desc = { 0, };
HRESULT hr;
ID3D11Device *device_handle;
ID3D11Texture2D *tex[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11RenderTargetView *view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i;
if (self->num_output_view)
return TRUE;
device_handle = gst_d3d11_device_get_device_handle (device);
texture_desc.MipLevels = 1;
texture_desc.ArraySize = 1;
texture_desc.SampleDesc.Count = 1;
texture_desc.SampleDesc.Quality = 0;
texture_desc.Usage = D3D11_USAGE_DEFAULT;
texture_desc.BindFlags =
D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
if (format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
texture_desc.Width = GST_VIDEO_INFO_COMP_WIDTH (info, i);
texture_desc.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
texture_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
}
} else {
gboolean is_semiplanar = FALSE;
if (format->dxgi_format == DXGI_FORMAT_NV12 ||
format->dxgi_format == DXGI_FORMAT_P010 ||
format->dxgi_format == DXGI_FORMAT_P016)
is_semiplanar = TRUE;
texture_desc.Width = GST_VIDEO_INFO_WIDTH (info);
texture_desc.Height = GST_VIDEO_INFO_HEIGHT (info);
texture_desc.Format = format->dxgi_format;
/* semiplanar format resolution of should be even number */
if (is_semiplanar) {
texture_desc.Width = GST_ROUND_UP_2 (texture_desc.Width);
texture_desc.Height = GST_ROUND_UP_2 (texture_desc.Height);
}
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[0]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
if (is_semiplanar) {
ID3D11Resource_AddRef (tex[0]);
tex[1] = tex[0];
}
}
view_desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
view_desc.Texture2D.MipSlice = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
view_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateRenderTargetView (device_handle,
(ID3D11Resource *) tex[i], &view_desc, &view[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self,
"Failed to create %dth render target view (0x%x)", i, (guint) hr);
goto error;
}
}
self->num_output_view = i;
GST_DEBUG_OBJECT (self, "%d render view created", self->num_output_view);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
self->out_texture[i] = tex[i];
self->render_target_view[i] = view[i];
}
return TRUE;
error:
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (view[i])
ID3D11RenderTargetView_Release (view[i]);
}
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (tex[i])
ID3D11Texture2D_Release (tex[i]);
}
return FALSE;
}
static gboolean
gst_d3d11_convert_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info)
{
GstD3D11Convert *self = GST_D3D11_CONVERT (filter);
const GstVideoInfo *unknown_info;
if (gst_base_transform_is_passthrough (GST_BASE_TRANSFORM (filter)))
return TRUE;
gst_d3d11_convert_clear_shader_resource (self);
GST_DEBUG_OBJECT (self, "Setup convert with format %s -> %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (in_info)),
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (out_info)));
/* if present, these must match */
if (in_info->interlace_mode != out_info->interlace_mode)
goto format_mismatch;
/* FIXME: add support border */
if (in_info->width == out_info->width && in_info->height == out_info->height
&& in_info->finfo == out_info->finfo) {
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), TRUE);
return TRUE;
}
self->in_d3d11_format =
gst_d3d11_device_format_from_gst (filter->device,
GST_VIDEO_INFO_FORMAT (in_info));
if (!self->in_d3d11_format) {
unknown_info = in_info;
goto format_unknown;
}
self->out_d3d11_format =
gst_d3d11_device_format_from_gst (filter->device,
GST_VIDEO_INFO_FORMAT (out_info));
if (!self->out_d3d11_format) {
unknown_info = out_info;
goto format_unknown;
}
self->converter = gst_d3d11_color_converter_new (filter->device,
in_info, out_info);
if (!self->converter) {
GST_ERROR_OBJECT (self, "couldn't set converter");
return FALSE;
}
#if (DXGI_HEADER_VERSION >= 4)
/* If both input and output formats are native DXGI format */
if (self->in_d3d11_format->dxgi_format != DXGI_FORMAT_UNKNOWN &&
self->out_d3d11_format->dxgi_format != DXGI_FORMAT_UNKNOWN) {
gboolean hardware = FALSE;
GstD3D11VideoProcessor *processor = NULL;
g_object_get (filter->device, "hardware", &hardware, NULL);
if (hardware) {
processor = gst_d3d11_video_processor_new (filter->device,
in_info->width, in_info->height, out_info->width, out_info->height);
}
if (processor) {
const GstDxgiColorSpace *in_color_space;
const GstDxgiColorSpace *out_color_space;
in_color_space = gst_d3d11_video_info_to_dxgi_color_space (in_info);
out_color_space = gst_d3d11_video_info_to_dxgi_color_space (out_info);
if (in_color_space && out_color_space) {
DXGI_FORMAT in_dxgi_format = self->in_d3d11_format->dxgi_format;
DXGI_FORMAT out_dxgi_format = self->out_d3d11_format->dxgi_format;
DXGI_COLOR_SPACE_TYPE in_dxgi_color_space =
(DXGI_COLOR_SPACE_TYPE) in_color_space->dxgi_color_space_type;
DXGI_COLOR_SPACE_TYPE out_dxgi_color_space =
(DXGI_COLOR_SPACE_TYPE) out_color_space->dxgi_color_space_type;
if (!gst_d3d11_video_processor_check_format_conversion (processor,
in_dxgi_format, in_dxgi_color_space, out_dxgi_format,
out_dxgi_color_space)) {
GST_DEBUG_OBJECT (self, "Conversion is not supported by device");
gst_d3d11_video_processor_free (processor);
processor = NULL;
} else {
GST_DEBUG_OBJECT (self, "video processor supports conversion");
gst_d3d11_video_processor_set_input_dxgi_color_space (processor,
in_dxgi_color_space);
gst_d3d11_video_processor_set_output_dxgi_color_space (processor,
out_dxgi_color_space);
}
} else {
GST_WARNING_OBJECT (self,
"Couldn't determine input and/or output dxgi colorspace");
gst_d3d11_video_processor_free (processor);
processor = NULL;
}
}
self->processor = processor;
}
#endif
/* setup D3D11_BOX struct for fallback copy */
self->in_src_box.left = 0;
self->in_src_box.top = 0;
self->in_src_box.front = 0;
self->in_src_box.back = 1;
self->in_src_box.right = GST_VIDEO_INFO_WIDTH (in_info);
self->in_src_box.bottom = GST_VIDEO_INFO_HEIGHT (in_info);
self->out_src_box.left = 0;
self->out_src_box.top = 0;
self->out_src_box.front = 0;
self->out_src_box.back = 1;
self->out_src_box.right = GST_VIDEO_INFO_WIDTH (out_info);
self->out_src_box.bottom = GST_VIDEO_INFO_HEIGHT (out_info);
return TRUE;
/* ERRORS */
format_mismatch:
{
GST_ERROR_OBJECT (self, "input and output formats do not match");
return FALSE;
}
format_unknown:
{
GST_ERROR_OBJECT (self,
"%s couldn't be converted to d3d11 format",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (unknown_info)));
return FALSE;
}
}
static gboolean
gst_d3d11_convert_prefer_video_processor (GstD3D11Convert * self,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (self);
GstMemory *mem;
GstD3D11Memory *dmem;
if (!self->processor)
return FALSE;
if (gst_buffer_n_memory (inbuf) != 1 || gst_buffer_n_memory (outbuf) != 1)
return FALSE;
mem = gst_buffer_peek_memory (inbuf, 0);
g_assert (gst_is_d3d11_memory (mem));
dmem = (GstD3D11Memory *) mem;
if (dmem->device != filter->device)
return FALSE;
/* If we can use shader, we prefer to use shader instead of video processor
* because video processor implementation is vendor dependent
* and not flexible */
if (gst_d3d11_memory_ensure_shader_resource_view (dmem))
return FALSE;
if (!gst_d3d11_video_processor_ensure_input_view (self->processor, dmem))
return FALSE;
mem = gst_buffer_peek_memory (outbuf, 0);
g_assert (gst_is_d3d11_memory (mem));
dmem = (GstD3D11Memory *) mem;
if (dmem->device != filter->device)
return FALSE;
if (!gst_d3d11_video_processor_ensure_output_view (self->processor, dmem))
return FALSE;
return TRUE;
}
static GstFlowReturn
gst_d3d11_convert_transform_using_processor (GstD3D11Convert * self,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstMemory *in_mem, *out_mem;
GstD3D11Memory *in_dmem, *out_dmem;
GstMapInfo in_map, out_map;
RECT in_rect, out_rect;
gboolean ret;
in_mem = gst_buffer_peek_memory (inbuf, 0);
in_dmem = (GstD3D11Memory *) in_mem;
if (!gst_memory_map (in_mem, &in_map, GST_MAP_D3D11 | GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Failed to map input d3d11 memory");
return GST_FLOW_ERROR;
}
out_mem = gst_buffer_peek_memory (outbuf, 0);
out_dmem = (GstD3D11Memory *) out_mem;
if (!gst_memory_map (out_mem, &out_map, GST_MAP_D3D11 | GST_MAP_WRITE)) {
GST_ERROR_OBJECT (self, "Failed to map output d3d11 memory");
gst_memory_unmap (in_mem, &in_map);
return GST_FLOW_ERROR;
}
in_rect.left = 0;
in_rect.top = 0;
in_rect.right = self->in_src_box.right;
in_rect.bottom = self->in_src_box.bottom;
out_rect.left = 0;
out_rect.top = 0;
out_rect.right = self->out_src_box.right;
out_rect.bottom = self->out_src_box.bottom;
ret = gst_d3d11_video_processor_render (self->processor,
&in_rect, in_dmem->processor_input_view, &out_rect,
out_dmem->processor_output_view);
gst_memory_unmap (in_mem, &in_map);
gst_memory_unmap (out_mem, &out_map);
if (!ret) {
GST_ERROR_OBJECT (self, "Couldn't convert using video processor");
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_convert_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstD3D11Convert *self = GST_D3D11_CONVERT (trans);
ID3D11DeviceContext *context_handle;
ID3D11ShaderResourceView *resource_view[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11RenderTargetView *render_view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i, j, view_index;
gboolean copy_input = FALSE;
gboolean copy_output = FALSE;
GstD3D11Device *device = filter->device;
if (gst_d3d11_convert_prefer_video_processor (self, inbuf, outbuf))
return gst_d3d11_convert_transform_using_processor (self, inbuf, outbuf);
context_handle = gst_d3d11_device_get_device_context_handle (device);
view_index = 0;
for (i = 0; i < gst_buffer_n_memory (inbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (inbuf, i);
GstD3D11Memory *d3d11_mem;
GstMapInfo info;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
/* map to transfer pending staging data if any */
if (d3d11_mem->desc.Usage == D3D11_USAGE_DEFAULT) {
gst_memory_map (mem, &info, GST_MAP_READ | GST_MAP_D3D11);
gst_memory_unmap (mem, &info);
}
if (gst_d3d11_memory_ensure_shader_resource_view (d3d11_mem)) {
GST_TRACE_OBJECT (self, "Use input texture resource without copy");
for (j = 0; j < d3d11_mem->num_shader_resource_views; j++) {
resource_view[view_index] = d3d11_mem->shader_resource_view[j];
view_index++;
}
} else {
GST_TRACE_OBJECT (self, "Render using fallback input texture");
copy_input = TRUE;
if (!create_shader_input_resource (self, device,
self->in_d3d11_format, &filter->in_info)) {
GST_ERROR_OBJECT (self, "Failed to configure fallback input texture");
return GST_FLOW_ERROR;
}
break;
}
}
/* if input memory has no resource view,
* copy texture into our fallback texture */
if (copy_input) {
gst_d3d11_device_lock (device);
for (i = 0; i < gst_buffer_n_memory (inbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (inbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
ID3D11DeviceContext_CopySubresourceRegion (context_handle,
(ID3D11Resource *) self->in_texture[i], 0, 0, 0, 0,
(ID3D11Resource *) d3d11_mem->texture, d3d11_mem->subresource_index,
&self->in_src_box);
}
gst_d3d11_device_unlock (device);
}
view_index = 0;
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
if (gst_d3d11_memory_ensure_render_target_view (d3d11_mem)) {
GST_TRACE_OBJECT (self, "Render to output texture directly");
for (j = 0; j < d3d11_mem->num_render_target_views; j++) {
render_view[view_index] = d3d11_mem->render_target_view[j];
view_index++;
}
} else {
GST_TRACE_OBJECT (self, "Render to fallback output texture");
copy_output = TRUE;
if (!create_shader_output_resource (self, device, self->out_d3d11_format,
&filter->out_info)) {
GST_ERROR_OBJECT (self, "Failed to configure fallback output texture");
return GST_FLOW_ERROR;
}
break;
}
}
if (!gst_d3d11_color_converter_convert (self->converter,
copy_input ? self->shader_resource_view : resource_view,
copy_output ? self->render_target_view : render_view, NULL, NULL)) {
GST_ERROR_OBJECT (self, "Failed to convert");
return GST_FLOW_ERROR;
}
if (copy_output) {
gst_d3d11_device_lock (device);
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
ID3D11DeviceContext_CopySubresourceRegion (context_handle,
(ID3D11Resource *) d3d11_mem->texture, d3d11_mem->subresource_index,
0, 0, 0, (ID3D11Resource *) self->out_texture[i], 0,
&self->out_src_box);
}
gst_d3d11_device_unlock (device);
} else {
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GST_MINI_OBJECT_FLAG_SET (mem, GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD);
}
}
return GST_FLOW_OK;
}
static GstCaps *gst_d3d11_color_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_d3d11_color_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
G_DEFINE_TYPE (GstD3D11ColorConvert, gst_d3d11_color_convert,
GST_TYPE_D3D11_CONVERT);
static void
gst_d3d11_color_convert_class_init (GstD3D11ColorConvertClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 colorspace converter",
"Filter/Converter/Video/Hardware",
"Color conversion using D3D11",
"Seungha Yang <seungha.yang@navercorp.com>, "
"Jeongki Kim <jeongki.kim@jeongki.kim>");
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_transform_caps);
trans_class->fixate_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_fixate_caps);
}
static void
gst_d3d11_color_convert_init (GstD3D11ColorConvert * self)
{
}
static GstCaps *
gst_d3d11_color_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_d3d11_convert_caps_remove_format_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_d3d11_color_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *format = NULL;
GST_DEBUG_OBJECT (base,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
format = gst_d3d11_convert_get_fixed_format (base, direction, caps,
othercaps);
if (gst_caps_is_empty (format)) {
GST_ERROR_OBJECT (base, "Could not convert formats");
} else {
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, format);
}
return format;
}
static GstCaps *gst_d3d11_scale_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_d3d11_scale_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
G_DEFINE_TYPE (GstD3D11Scale, gst_d3d11_scale, GST_TYPE_D3D11_CONVERT);
static void
gst_d3d11_scale_class_init (GstD3D11ScaleClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 scaler",
"Filter/Converter/Video/Scaler/Hardware",
"Resizes video using D3D11",
"Seungha Yang <seungha.yang@navercorp.com>, "
"Jeongki Kim <jeongki.kim@jeongki.kim>");
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_scale_transform_caps);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_d3d11_scale_fixate_caps);
}
static void
gst_d3d11_scale_init (GstD3D11Scale * self)
{
}
static GstCaps *
gst_d3d11_scale_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_d3d11_convert_caps_rangify_size_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_d3d11_scale_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GST_DEBUG_OBJECT (base,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
othercaps = gst_d3d11_convert_fixate_size (base, direction, caps, othercaps);
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
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