mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-30 13:41:48 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11pluginutils.cpp
Seungha Yang 7b39a09f9d d3d11converter: Add support for colorimetry conversion 
Handle color primaries and gamma functions.
HDR <-> SDR conversion (tone mapping) should be implemented as well
but not a part of this patch.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>
2022-06-14 05:04:53 +09:00

1798 lines
55 KiB
C++
Raw Blame History

/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11pluginutils.h"
#include <windows.h>
#include <versionhelpers.h>
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_plugin_utils_debug);
#define GST_CAT_DEFAULT gst_d3d11_plugin_utils_debug
/* Max Texture Dimension for feature level 11_0 ~ 12_1 */
static guint _gst_d3d11_texture_max_dimension = 16384;
void
gst_d3d11_plugin_utils_init (D3D_FEATURE_LEVEL feature_level)
{
static gsize _init_once = 0;
if (g_once_init_enter (&_init_once)) {
/* https://docs.microsoft.com/en-us/windows/win32/direct3d11/overviews-direct3d-11-devices-downlevel-intro */
if (feature_level >= D3D_FEATURE_LEVEL_11_0)
_gst_d3d11_texture_max_dimension = 16384;
else if (feature_level >= D3D_FEATURE_LEVEL_10_0)
_gst_d3d11_texture_max_dimension = 8192;
else
_gst_d3d11_texture_max_dimension = 4096;
g_once_init_leave (&_init_once, 1);
}
}
GstCaps *
gst_d3d11_get_updated_template_caps (GstStaticCaps * template_caps)
{
GstCaps *caps;
g_return_val_if_fail (template_caps != NULL, NULL);
caps = gst_static_caps_get (template_caps);
if (!caps) {
GST_ERROR ("Couldn't get caps from static caps");
return NULL;
}
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps,
"width", GST_TYPE_INT_RANGE, 1, _gst_d3d11_texture_max_dimension,
"height", GST_TYPE_INT_RANGE, 1, _gst_d3d11_texture_max_dimension, NULL);
return caps;
}
gboolean
gst_d3d11_is_windows_8_or_greater (void)
{
static gsize version_once = 0;
static gboolean ret = FALSE;
if (g_once_init_enter (&version_once)) {
#if (!GST_D3D11_WINAPI_ONLY_APP)
if (IsWindows8OrGreater ())
ret = TRUE;
#else
ret = TRUE;
#endif
g_once_init_leave (&version_once, 1);
}
return ret;
}
GstD3D11DeviceVendor
gst_d3d11_get_device_vendor (GstD3D11Device * device)
{
guint device_id = 0;
guint vendor_id = 0;
gchar *desc = NULL;
GstD3D11DeviceVendor vendor = GST_D3D11_DEVICE_VENDOR_UNKNOWN;
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device),
GST_D3D11_DEVICE_VENDOR_UNKNOWN);
g_object_get (device, "device-id", &device_id, "vendor-id", &vendor_id,
"description", &desc, NULL);
switch (vendor_id) {
case 0:
if (device_id == 0 && desc && g_strrstr (desc, "SraKmd"))
vendor = GST_D3D11_DEVICE_VENDOR_XBOX;
break;
case 0x1002:
case 0x1022:
vendor = GST_D3D11_DEVICE_VENDOR_AMD;
break;
case 0x8086:
vendor = GST_D3D11_DEVICE_VENDOR_INTEL;
break;
case 0x10de:
vendor = GST_D3D11_DEVICE_VENDOR_NVIDIA;
break;
case 0x4d4f4351:
vendor = GST_D3D11_DEVICE_VENDOR_QUALCOMM;
break;
default:
break;
}
g_free (desc);
return vendor;
}
gboolean
gst_d3d11_hdr_meta_data_to_dxgi (GstVideoMasteringDisplayInfo * minfo,
GstVideoContentLightLevel * cll, DXGI_HDR_METADATA_HDR10 * dxgi_hdr10)
{
g_return_val_if_fail (dxgi_hdr10 != NULL, FALSE);
memset (dxgi_hdr10, 0, sizeof (DXGI_HDR_METADATA_HDR10));
if (minfo) {
dxgi_hdr10->RedPrimary[0] = minfo->display_primaries[0].x;
dxgi_hdr10->RedPrimary[1] = minfo->display_primaries[0].y;
dxgi_hdr10->GreenPrimary[0] = minfo->display_primaries[1].x;
dxgi_hdr10->GreenPrimary[1] = minfo->display_primaries[1].y;
dxgi_hdr10->BluePrimary[0] = minfo->display_primaries[2].x;
dxgi_hdr10->BluePrimary[1] = minfo->display_primaries[2].y;
dxgi_hdr10->WhitePoint[0] = minfo->white_point.x;
dxgi_hdr10->WhitePoint[1] = minfo->white_point.y;
dxgi_hdr10->MaxMasteringLuminance = minfo->max_display_mastering_luminance;
dxgi_hdr10->MinMasteringLuminance = minfo->min_display_mastering_luminance;
}
if (cll) {
dxgi_hdr10->MaxContentLightLevel = cll->max_content_light_level;
dxgi_hdr10->MaxFrameAverageLightLevel = cll->max_frame_average_light_level;
}
return TRUE;
}
typedef enum
{
GST_DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709 = 0,
GST_DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709 = 1,
GST_DXGI_COLOR_SPACE_RGB_STUDIO_G22_NONE_P709 = 2,
GST_DXGI_COLOR_SPACE_RGB_STUDIO_G22_NONE_P2020 = 3,
GST_DXGI_COLOR_SPACE_RESERVED = 4,
GST_DXGI_COLOR_SPACE_YCBCR_FULL_G22_NONE_P709_X601 = 5,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P601 = 6,
GST_DXGI_COLOR_SPACE_YCBCR_FULL_G22_LEFT_P601 = 7,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P709 = 8,
GST_DXGI_COLOR_SPACE_YCBCR_FULL_G22_LEFT_P709 = 9,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P2020 = 10,
GST_DXGI_COLOR_SPACE_YCBCR_FULL_G22_LEFT_P2020 = 11,
GST_DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020 = 12,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G2084_LEFT_P2020 = 13,
GST_DXGI_COLOR_SPACE_RGB_STUDIO_G2084_NONE_P2020 = 14,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_TOPLEFT_P2020 = 15,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G2084_TOPLEFT_P2020 = 16,
GST_DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P2020 = 17,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_GHLG_TOPLEFT_P2020 = 18,
GST_DXGI_COLOR_SPACE_YCBCR_FULL_GHLG_TOPLEFT_P2020 = 19,
GST_DXGI_COLOR_SPACE_RGB_STUDIO_G24_NONE_P709 = 20,
GST_DXGI_COLOR_SPACE_RGB_STUDIO_G24_NONE_P2020 = 21,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G24_LEFT_P709 = 22,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G24_LEFT_P2020 = 23,
GST_DXGI_COLOR_SPACE_YCBCR_STUDIO_G24_TOPLEFT_P2020 = 24,
GST_DXGI_COLOR_SPACE_CUSTOM = 0xFFFFFFFF
} GST_DXGI_COLOR_SPACE_TYPE;
/* https://docs.microsoft.com/en-us/windows/win32/api/dxgicommon/ne-dxgicommon-dxgi_color_space_type */
#define MAKE_COLOR_MAP(d,r,m,t,p) \
{ GST_DXGI_COLOR_SPACE_ ##d, GST_VIDEO_COLOR_RANGE ##r, \
GST_VIDEO_COLOR_MATRIX_ ##m, GST_VIDEO_TRANSFER_ ##t, \
GST_VIDEO_COLOR_PRIMARIES_ ##p }
static const GstDxgiColorSpace rgb_colorspace_map[] = {
/* 1) DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
* 2) DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709
* 3) DXGI_COLOR_SPACE_RGB_STUDIO_G22_NONE_P709
* 4) DXGI_COLOR_SPACE_RGB_STUDIO_G22_NONE_P2020
* 5) DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020
* 6) DXGI_COLOR_SPACE_RGB_STUDIO_G2084_NONE_P2020
* 7) DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P2020
* 8) DXGI_COLOR_SPACE_RGB_STUDIO_G24_NONE_P709
* 9) DXGI_COLOR_SPACE_RGB_STUDIO_G24_NONE_P2020
*
* NOTE: if G24 (Gamma 2.4, SRGB) transfer is not defined,
* it will be approximated as G22.
* NOTE: BT470BG ~= BT709
*/
/* 1) RGB_FULL_G22_NONE_P709 */
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT709, BT709),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT601, BT709),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT2020_10, BT709),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT2020_12, BT709),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT709, BT470BG),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT601, BT470BG),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT2020_10, BT470BG),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, BT2020_12, BT470BG),
/* 1-1) Approximation for RGB_FULL_G22_NONE_P709 */
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, SRGB, BT709),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P709, _0_255, UNKNOWN, SRGB, BT470BG),
/* 2) RGB_FULL_G10_NONE_P709 */
MAKE_COLOR_MAP (RGB_FULL_G10_NONE_P709, _0_255, UNKNOWN, GAMMA10, BT709),
MAKE_COLOR_MAP (RGB_FULL_G10_NONE_P709, _0_255, UNKNOWN, GAMMA10, BT470BG),
/* 3) RGB_STUDIO_G22_NONE_P709 */
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT709, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT601, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT2020_10, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT2020_12, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT709, BT470BG),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT601, BT470BG),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT2020_10,
BT470BG),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, BT2020_12,
BT470BG),
/* 3-1) Approximation for RGB_STUDIO_G22_NONE_P709 */
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, SRGB, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P709, _16_235, UNKNOWN, SRGB, BT470BG),
/* 4) RGB_STUDIO_G22_NONE_P2020 */
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P2020, _16_235, UNKNOWN, BT709, BT2020),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P2020, _16_235, UNKNOWN, BT601, BT2020),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P2020, _16_235, UNKNOWN, BT2020_10,
BT2020),
MAKE_COLOR_MAP (RGB_STUDIO_G22_NONE_P2020, _16_235, UNKNOWN, BT2020_12,
BT2020),
/* 5) RGB_FULL_G2084_NONE_P2020 */
MAKE_COLOR_MAP (RGB_FULL_G2084_NONE_P2020, _0_255, UNKNOWN, SMPTE2084,
BT2020),
/* 6) RGB_STUDIO_G2084_NONE_P2020 */
MAKE_COLOR_MAP (RGB_STUDIO_G2084_NONE_P2020, _16_235, UNKNOWN, SMPTE2084,
BT2020),
/* 7) RGB_FULL_G22_NONE_P2020 */
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P2020, _0_255, UNKNOWN, BT709, BT2020),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P2020, _0_255, UNKNOWN, BT601, BT2020),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P2020, _0_255, UNKNOWN, BT2020_10, BT2020),
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P2020, _0_255, UNKNOWN, BT2020_12, BT2020),
/* 7-1) Approximation for RGB_FULL_G22_NONE_P2020 */
MAKE_COLOR_MAP (RGB_FULL_G22_NONE_P2020, _0_255, UNKNOWN, SRGB, BT2020),
/* 8) RGB_STUDIO_G24_NONE_P709 */
MAKE_COLOR_MAP (RGB_STUDIO_G24_NONE_P709, _16_235, UNKNOWN, SRGB, BT709),
MAKE_COLOR_MAP (RGB_STUDIO_G24_NONE_P709, _16_235, UNKNOWN, SRGB, BT470BG),
/* 9) RGB_STUDIO_G24_NONE_P2020 */
MAKE_COLOR_MAP (RGB_STUDIO_G24_NONE_P2020, _16_235, UNKNOWN, SRGB, BT2020),
};
static const GstDxgiColorSpace yuv_colorspace_map[] = {
/* 1) YCBCR_FULL_G22_NONE_P709_X601
* 2) YCBCR_STUDIO_G22_LEFT_P601
* 3) YCBCR_FULL_G22_LEFT_P601
* 4) YCBCR_STUDIO_G22_LEFT_P709
* 5) YCBCR_FULL_G22_LEFT_P709
* 6) YCBCR_STUDIO_G22_LEFT_P2020
* 7) YCBCR_FULL_G22_LEFT_P2020
* 8) YCBCR_STUDIO_G2084_LEFT_P2020
* 9) YCBCR_STUDIO_G22_TOPLEFT_P2020
* 10) YCBCR_STUDIO_G2084_TOPLEFT_P2020
* 11) YCBCR_STUDIO_GHLG_TOPLEFT_P2020
* 12) YCBCR_FULL_GHLG_TOPLEFT_P2020
* 13) YCBCR_STUDIO_G24_LEFT_P709
* 14) YCBCR_STUDIO_G24_LEFT_P2020
* 15) YCBCR_STUDIO_G24_TOPLEFT_P2020
*
* NOTE: BT470BG ~= BT709
*/
/* 1) YCBCR_FULL_G22_NONE_P709_X601 */
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT709, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT601, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT2020_10,
BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT2020_12,
BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT709, BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT601, BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT2020_10,
BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_NONE_P709_X601, _0_255, BT601, BT2020_12,
BT470BG),
/* 2) YCBCR_STUDIO_G22_LEFT_P601 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT601, SMPTE170M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT709, SMPTE170M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT2020_10,
SMPTE170M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT2020_12,
SMPTE170M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT601, SMPTE240M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT709, SMPTE240M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT2020_10,
SMPTE240M),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P601, _16_235, BT601, BT2020_12,
SMPTE240M),
/* 3) YCBCR_FULL_G22_LEFT_P601 */
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT601, SMPTE170M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT709, SMPTE170M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT2020_10,
SMPTE170M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT2020_12,
SMPTE170M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT601, SMPTE240M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT709, SMPTE240M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT2020_10,
SMPTE240M),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P601, _0_255, BT601, BT2020_12,
SMPTE240M),
/* 4) YCBCR_STUDIO_G22_LEFT_P709 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT709, BT709),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT601, BT709),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT2020_10,
BT709),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT2020_12,
BT709),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT709, BT470BG),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT601, BT470BG),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT2020_10,
BT470BG),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P709, _16_235, BT709, BT2020_12,
BT470BG),
/* 5) YCBCR_FULL_G22_LEFT_P709 */
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT709, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT601, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT2020_10, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT2020_12, BT709),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT709, BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT601, BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT2020_10, BT470BG),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P709, _0_255, BT709, BT2020_12, BT470BG),
/* 6) YCBCR_STUDIO_G22_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P2020, _16_235, BT2020, BT709, BT2020),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P2020, _16_235, BT2020, BT601, BT2020),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P2020, _16_235, BT2020, BT2020_10,
BT2020),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_LEFT_P2020, _16_235, BT2020, BT2020_12,
BT2020),
/* 7) YCBCR_FULL_G22_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P2020, _0_255, BT2020, BT709, BT2020),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P2020, _0_255, BT2020, BT601, BT2020),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P2020, _0_255, BT2020, BT2020_10,
BT2020),
MAKE_COLOR_MAP (YCBCR_FULL_G22_LEFT_P2020, _0_255, BT2020, BT2020_12,
BT2020),
/* 8) YCBCR_STUDIO_G2084_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G2084_LEFT_P2020, _16_235, BT2020, SMPTE2084,
BT2020),
/* 9) YCBCR_STUDIO_G22_TOPLEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_TOPLEFT_P2020, _16_235, BT2020, BT2020_10,
BT2020),
MAKE_COLOR_MAP (YCBCR_STUDIO_G22_TOPLEFT_P2020, _16_235, BT2020, BT2020_12,
BT2020),
/* 10) YCBCR_STUDIO_G2084_TOPLEFT_P2020 */
/* FIXME: check chroma-site to differentiate this from
* YCBCR_STUDIO_G2084_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G2084_TOPLEFT_P2020, _16_235, BT2020, SMPTE2084,
BT2020),
/* 11) YCBCR_STUDIO_GHLG_TOPLEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_GHLG_TOPLEFT_P2020, _16_235, BT2020,
ARIB_STD_B67, BT2020),
/* 12) YCBCR_FULL_GHLG_TOPLEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_FULL_GHLG_TOPLEFT_P2020, _0_255, BT2020, ARIB_STD_B67,
BT2020),
/* 13) YCBCR_STUDIO_G24_LEFT_P709 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G24_LEFT_P709, _16_235, BT709, SRGB, BT709),
/* 14) YCBCR_STUDIO_G24_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G24_LEFT_P2020, _16_235, BT2020, SRGB, BT2020),
/* 15) YCBCR_STUDIO_G24_TOPLEFT_P2020 */
/* FIXME: check chroma-site to differentiate this from
* YCBCR_STUDIO_G24_LEFT_P2020 */
MAKE_COLOR_MAP (YCBCR_STUDIO_G24_TOPLEFT_P2020, _16_235, BT2020, SRGB,
BT2020),
};
#define SCORE_RANGE_MISMATCH 5
#define SCORE_MATRIX_MISMATCH 5
#define SCORE_TRANSFER_MISMATCH 5
#define SCORE_PRIMARY_MISMATCH 10
static gint
get_score (GstVideoInfo * info, const GstDxgiColorSpace * color_map,
gboolean is_yuv)
{
gint loss = 0;
GstVideoColorimetry *color = &info->colorimetry;
if (color->range != color_map->range)
loss += SCORE_RANGE_MISMATCH;
if (is_yuv && color->matrix != color_map->matrix)
loss += SCORE_MATRIX_MISMATCH;
if (color->transfer != color_map->transfer)
loss += SCORE_TRANSFER_MISMATCH;
if (color->primaries != color_map->primaries)
loss += SCORE_PRIMARY_MISMATCH;
return loss;
}
static const GstDxgiColorSpace *
gst_d3d11_video_info_to_dxgi_color_space_rgb (GstVideoInfo * info)
{
gint best_score = G_MAXINT;
gint score;
guint i;
const GstDxgiColorSpace *colorspace = NULL;
for (i = 0; i < G_N_ELEMENTS (rgb_colorspace_map); i++) {
score = get_score (info, &rgb_colorspace_map[i], FALSE);
if (score < best_score) {
best_score = score;
colorspace = &rgb_colorspace_map[i];
if (score == 0)
break;
}
}
return colorspace;
}
static const GstDxgiColorSpace *
gst_d3d11_video_info_to_dxgi_color_space_yuv (GstVideoInfo * info)
{
gint best_score = G_MAXINT;
gint score;
guint i;
const GstDxgiColorSpace *colorspace = NULL;
for (i = 0; i < G_N_ELEMENTS (yuv_colorspace_map); i++) {
score = get_score (info, &yuv_colorspace_map[i], TRUE);
if (score < best_score) {
best_score = score;
colorspace = &yuv_colorspace_map[i];
if (score == 0)
break;
}
}
return colorspace;
}
const GstDxgiColorSpace *
gst_d3d11_video_info_to_dxgi_color_space (GstVideoInfo * info)
{
g_return_val_if_fail (info != NULL, NULL);
if (GST_VIDEO_INFO_IS_RGB (info)) {
return gst_d3d11_video_info_to_dxgi_color_space_rgb (info);
} else if (GST_VIDEO_INFO_IS_YUV (info)) {
return gst_d3d11_video_info_to_dxgi_color_space_yuv (info);
}
return NULL;
}
const GstDxgiColorSpace *
gst_d3d11_find_swap_chain_color_space (GstVideoInfo * info,
IDXGISwapChain3 * swapchain)
{
const GstDxgiColorSpace *colorspace = NULL;
gint best_score = G_MAXINT;
guint i;
UINT can_support = 0;
HRESULT hr;
GST_DXGI_COLOR_SPACE_TYPE cur_type;
/* list of tested display color spaces */
static GST_DXGI_COLOR_SPACE_TYPE whitelist[] = {
GST_DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709,
GST_DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709,
};
g_return_val_if_fail (info != NULL, FALSE);
g_return_val_if_fail (swapchain != NULL, FALSE);
if (!GST_VIDEO_INFO_IS_RGB (info)) {
GST_WARNING ("Swapchain colorspace should be RGB format");
return FALSE;
}
/* Select PQ color space only if input is also PQ */
if (info->colorimetry.primaries == GST_VIDEO_COLOR_PRIMARIES_BT2020 &&
info->colorimetry.transfer == GST_VIDEO_TRANSFER_SMPTE2084) {
guint pq = GST_DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020;
hr = swapchain->CheckColorSpaceSupport ((DXGI_COLOR_SPACE_TYPE) pq,
&can_support);
if (SUCCEEDED (hr) && can_support) {
for (i = 0; i < G_N_ELEMENTS (rgb_colorspace_map); i++) {
if (rgb_colorspace_map[i].dxgi_color_space_type == pq)
return &rgb_colorspace_map[i];
}
}
}
for (i = 0; i < G_N_ELEMENTS (rgb_colorspace_map); i++) {
can_support = 0;
gint score;
gboolean valid = FALSE;
cur_type =
(GST_DXGI_COLOR_SPACE_TYPE) rgb_colorspace_map[i].dxgi_color_space_type;
for (guint j = 0; j < G_N_ELEMENTS (whitelist); j++) {
if (whitelist[j] == cur_type) {
valid = TRUE;
break;
}
}
if (!valid)
continue;
hr = swapchain->CheckColorSpaceSupport ((DXGI_COLOR_SPACE_TYPE) cur_type,
&can_support);
if (FAILED (hr))
continue;
if ((can_support & DXGI_SWAP_CHAIN_COLOR_SPACE_SUPPORT_FLAG_PRESENT) ==
DXGI_SWAP_CHAIN_COLOR_SPACE_SUPPORT_FLAG_PRESENT) {
score = get_score (info, &rgb_colorspace_map[i], FALSE);
GST_DEBUG ("colorspace %d supported, score %d", cur_type, score);
if (score < best_score) {
best_score = score;
colorspace = &rgb_colorspace_map[i];
}
}
}
return colorspace;
}
static void
fill_staging_desc (const D3D11_TEXTURE2D_DESC * ref,
D3D11_TEXTURE2D_DESC * staging)
{
memset (staging, 0, sizeof (D3D11_TEXTURE2D_DESC));
staging->Width = ref->Width;
staging->Height = ref->Height;
staging->MipLevels = 1;
staging->Format = ref->Format;
staging->SampleDesc.Count = 1;
staging->ArraySize = 1;
staging->Usage = D3D11_USAGE_STAGING;
staging->CPUAccessFlags = (D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE);
}
GstBuffer *
gst_d3d11_allocate_staging_buffer_for (GstBuffer * buffer,
const GstVideoInfo * info, gboolean add_videometa)
{
GstD3D11Memory *dmem;
GstD3D11Device *device;
GstD3D11Allocator *alloc = NULL;
GstBuffer *staging_buffer = NULL;
gint stride[GST_VIDEO_MAX_PLANES] = { 0, };
gsize offset[GST_VIDEO_MAX_PLANES] = { 0, };
guint i;
gsize size = 0;
GstD3D11Format format;
D3D11_TEXTURE2D_DESC desc;
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
if (!gst_is_d3d11_memory (mem)) {
GST_DEBUG ("Not a d3d11 memory");
return NULL;
}
}
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, 0);
device = dmem->device;
if (!gst_d3d11_device_get_format (device, GST_VIDEO_INFO_FORMAT (info),
&format)) {
GST_ERROR ("Unknown d3d11 format");
return NULL;
}
alloc = (GstD3D11Allocator *) gst_allocator_find (GST_D3D11_MEMORY_NAME);
if (!alloc) {
GST_ERROR ("D3D11 allocator is not available");
return NULL;
}
staging_buffer = gst_buffer_new ();
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
D3D11_TEXTURE2D_DESC staging_desc;
GstD3D11Memory *mem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, i);
GstD3D11Memory *new_mem;
guint cur_stride = 0;
gst_d3d11_memory_get_texture_desc (mem, &desc);
fill_staging_desc (&desc, &staging_desc);
new_mem = (GstD3D11Memory *)
gst_d3d11_allocator_alloc (alloc, mem->device, &staging_desc);
if (!new_mem) {
GST_ERROR ("Failed to allocate memory");
goto error;
}
if (!gst_d3d11_memory_get_resource_stride (new_mem, &cur_stride) ||
cur_stride < staging_desc.Width) {
GST_ERROR ("Failed to calculate memory size");
gst_memory_unref (GST_MEMORY_CAST (mem));
goto error;
}
offset[i] = size;
stride[i] = cur_stride;
size += GST_MEMORY_CAST (new_mem)->size;
gst_buffer_append_memory (staging_buffer, GST_MEMORY_CAST (new_mem));
}
/* single texture semi-planar formats */
if (format.dxgi_format != DXGI_FORMAT_UNKNOWN &&
GST_VIDEO_INFO_N_PLANES (info) == 2) {
stride[1] = stride[0];
offset[1] = stride[0] * desc.Height;
}
gst_buffer_add_video_meta_full (staging_buffer, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
offset, stride);
if (alloc)
gst_object_unref (alloc);
return staging_buffer;
error:
gst_clear_buffer (&staging_buffer);
gst_clear_object (&alloc);
return NULL;
}
static gboolean
gst_d3d11_buffer_copy_into_fallback (GstBuffer * dst, GstBuffer * src,
const GstVideoInfo * info)
{
GstVideoFrame in_frame, out_frame;
gboolean ret;
if (!gst_video_frame_map (&in_frame, (GstVideoInfo *) info, src,
(GstMapFlags) (GST_MAP_READ | GST_VIDEO_FRAME_MAP_FLAG_NO_REF)))
goto invalid_buffer;
if (!gst_video_frame_map (&out_frame, (GstVideoInfo *) info, dst,
(GstMapFlags) (GST_MAP_WRITE | GST_VIDEO_FRAME_MAP_FLAG_NO_REF))) {
gst_video_frame_unmap (&in_frame);
goto invalid_buffer;
}
ret = gst_video_frame_copy (&out_frame, &in_frame);
gst_video_frame_unmap (&in_frame);
gst_video_frame_unmap (&out_frame);
return ret;
/* ERRORS */
invalid_buffer:
{
GST_ERROR ("Invalid video buffer");
return FALSE;
}
}
gboolean
gst_d3d11_buffer_copy_into (GstBuffer * dst, GstBuffer * src,
const GstVideoInfo * info)
{
guint i;
g_return_val_if_fail (GST_IS_BUFFER (dst), FALSE);
g_return_val_if_fail (GST_IS_BUFFER (src), FALSE);
g_return_val_if_fail (info != NULL, FALSE);
if (gst_buffer_n_memory (dst) != gst_buffer_n_memory (src)) {
GST_LOG ("different memory layout, perform fallback copy");
return gst_d3d11_buffer_copy_into_fallback (dst, src, info);
}
if (!gst_is_d3d11_buffer (dst) || !gst_is_d3d11_buffer (src)) {
GST_LOG ("non-d3d11 memory, perform fallback copy");
return gst_d3d11_buffer_copy_into_fallback (dst, src, info);
}
for (i = 0; i < gst_buffer_n_memory (dst); i++) {
GstMemory *dst_mem, *src_mem;
GstD3D11Memory *dst_dmem, *src_dmem;
GstMapInfo dst_info;
GstMapInfo src_info;
ID3D11Resource *dst_texture, *src_texture;
ID3D11DeviceContext *device_context;
GstD3D11Device *device;
D3D11_BOX src_box = { 0, };
D3D11_TEXTURE2D_DESC dst_desc, src_desc;
guint dst_subidx, src_subidx;
dst_mem = gst_buffer_peek_memory (dst, i);
src_mem = gst_buffer_peek_memory (src, i);
dst_dmem = (GstD3D11Memory *) dst_mem;
src_dmem = (GstD3D11Memory *) src_mem;
device = dst_dmem->device;
if (device != src_dmem->device) {
GST_LOG ("different device, perform fallback copy");
return gst_d3d11_buffer_copy_into_fallback (dst, src, info);
}
gst_d3d11_memory_get_texture_desc (dst_dmem, &dst_desc);
gst_d3d11_memory_get_texture_desc (src_dmem, &src_desc);
if (dst_desc.Format != src_desc.Format) {
GST_WARNING ("different dxgi format");
return FALSE;
}
device_context = gst_d3d11_device_get_device_context_handle (device);
if (!gst_memory_map (dst_mem, &dst_info,
(GstMapFlags) (GST_MAP_WRITE | GST_MAP_D3D11))) {
GST_ERROR ("Cannot map dst d3d11 memory");
return FALSE;
}
if (!gst_memory_map (src_mem, &src_info,
(GstMapFlags) (GST_MAP_READ | GST_MAP_D3D11))) {
GST_ERROR ("Cannot map src d3d11 memory");
gst_memory_unmap (dst_mem, &dst_info);
return FALSE;
}
dst_texture = (ID3D11Resource *) dst_info.data;
src_texture = (ID3D11Resource *) src_info.data;
/* src/dst texture size might be different if padding was used.
* select smaller size */
src_box.left = 0;
src_box.top = 0;
src_box.front = 0;
src_box.back = 1;
src_box.right = MIN (src_desc.Width, dst_desc.Width);
src_box.bottom = MIN (src_desc.Height, dst_desc.Height);
dst_subidx = gst_d3d11_memory_get_subresource_index (dst_dmem);
src_subidx = gst_d3d11_memory_get_subresource_index (src_dmem);
gst_d3d11_device_lock (device);
device_context->CopySubresourceRegion (dst_texture, dst_subidx, 0, 0, 0,
src_texture, src_subidx, &src_box);
gst_d3d11_device_unlock (device);
gst_memory_unmap (src_mem, &src_info);
gst_memory_unmap (dst_mem, &dst_info);
}
return TRUE;
}
gboolean
gst_is_d3d11_buffer (GstBuffer * buffer)
{
guint i;
guint size;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
size = gst_buffer_n_memory (buffer);
if (size == 0)
return FALSE;
for (i = 0; i < size; i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
if (!gst_is_d3d11_memory (mem))
return FALSE;
}
return TRUE;
}
gboolean
gst_d3d11_buffer_can_access_device (GstBuffer * buffer, ID3D11Device * device)
{
guint i;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (device != NULL, FALSE);
if (!gst_is_d3d11_buffer (buffer)) {
GST_LOG ("Not a d3d11 buffer");
return FALSE;
}
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
GstD3D11Memory *mem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, i);
ID3D11Device *handle;
handle = gst_d3d11_device_get_device_handle (mem->device);
if (handle != device) {
GST_LOG ("D3D11 device is incompatible");
return FALSE;
}
}
return TRUE;
}
gboolean
gst_d3d11_buffer_map (GstBuffer * buffer, ID3D11Device * device,
GstMapInfo info[GST_VIDEO_MAX_PLANES], GstMapFlags flags)
{
GstMapFlags map_flags;
guint num_mapped = 0;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (info != NULL, FALSE);
if (!gst_d3d11_buffer_can_access_device (buffer, device))
return FALSE;
map_flags = (GstMapFlags) (flags | GST_MAP_D3D11);
for (num_mapped = 0; num_mapped < gst_buffer_n_memory (buffer); num_mapped++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, num_mapped);
if (!gst_memory_map (mem, &info[num_mapped], map_flags)) {
GST_ERROR ("Couldn't map memory");
goto error;
}
}
return TRUE;
error:
{
guint i;
for (i = 0; i < num_mapped; i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
gst_memory_unmap (mem, &info[i]);
}
return FALSE;
}
}
gboolean
gst_d3d11_buffer_unmap (GstBuffer * buffer,
GstMapInfo info[GST_VIDEO_MAX_PLANES])
{
guint i;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (info != NULL, FALSE);
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
gst_memory_unmap (mem, &info[i]);
}
return TRUE;
}
guint
gst_d3d11_buffer_get_shader_resource_view (GstBuffer * buffer,
ID3D11ShaderResourceView * view[GST_VIDEO_MAX_PLANES])
{
guint i;
guint num_views = 0;
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (view != NULL, 0);
if (!gst_is_d3d11_buffer (buffer)) {
GST_ERROR ("Buffer contains non-d3d11 memory");
return 0;
}
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
GstD3D11Memory *mem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, i);
guint view_size;
guint j;
view_size = gst_d3d11_memory_get_shader_resource_view_size (mem);
if (!view_size) {
GST_LOG ("SRV is unavailable for memory index %d", i);
return 0;
}
for (j = 0; j < view_size; j++) {
if (num_views >= GST_VIDEO_MAX_PLANES) {
GST_ERROR ("Too many SRVs");
return 0;
}
view[num_views++] = gst_d3d11_memory_get_shader_resource_view (mem, j);
}
}
return num_views;
}
guint
gst_d3d11_buffer_get_render_target_view (GstBuffer * buffer,
ID3D11RenderTargetView * view[GST_VIDEO_MAX_PLANES])
{
guint i;
guint num_views = 0;
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (view != NULL, 0);
if (!gst_is_d3d11_buffer (buffer)) {
GST_ERROR ("Buffer contains non-d3d11 memory");
return 0;
}
for (i = 0; i < gst_buffer_n_memory (buffer); i++) {
GstD3D11Memory *mem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, i);
guint view_size;
guint j;
view_size = gst_d3d11_memory_get_render_target_view_size (mem);
if (!view_size) {
GST_LOG ("RTV is unavailable for memory index %d", i);
return 0;
}
for (j = 0; j < view_size; j++) {
if (num_views >= GST_VIDEO_MAX_PLANES) {
GST_ERROR ("Too many RTVs");
return 0;
}
view[num_views++] = gst_d3d11_memory_get_render_target_view (mem, j);
}
}
return num_views;
}
GstBufferPool *
gst_d3d11_buffer_pool_new_with_options (GstD3D11Device * device,
GstCaps * caps, GstD3D11AllocationParams * alloc_params,
guint min_buffers, guint max_buffers)
{
GstBufferPool *pool;
GstStructure *config;
GstVideoInfo info;
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
g_return_val_if_fail (GST_IS_CAPS (caps), NULL);
g_return_val_if_fail (alloc_params != NULL, NULL);
if (!gst_video_info_from_caps (&info, caps)) {
GST_ERROR_OBJECT (device, "invalid caps");
return NULL;
}
pool = gst_d3d11_buffer_pool_new (device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config,
caps, GST_VIDEO_INFO_SIZE (&info), min_buffers, max_buffers);
gst_buffer_pool_config_set_d3d11_allocation_params (config, alloc_params);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (pool, "Couldn't set config");
gst_object_unref (pool);
return NULL;
}
return pool;
}
gchar *
gst_d3d11_dump_color_matrix (GstD3D11ColorMatrix * matrix)
{
/* *INDENT-OFF* */
static const gchar format[] =
"[MATRIX]\n"
"|% .6f, % .6f, % .6f|\n"
"|% .6f, % .6f, % .6f|\n"
"|% .6f, % .6f, % .6f|\n"
"[OFFSET]\n"
"|% .6f, % .6f, % .6f|\n"
"[MIN]\n"
"|% .6f, % .6f, % .6f|\n"
"[MAX]\n"
"|% .6f, % .6f, % .6f|";
/* *INDENT-ON* */
g_return_val_if_fail (matrix != nullptr, nullptr);
return g_strdup_printf (format,
matrix->matrix[0][0], matrix->matrix[0][1], matrix->matrix[0][2],
matrix->matrix[1][0], matrix->matrix[1][1], matrix->matrix[1][2],
matrix->matrix[2][0], matrix->matrix[2][1], matrix->matrix[2][2],
matrix->offset[0], matrix->offset[1], matrix->offset[2],
matrix->min[0], matrix->min[1], matrix->min[2],
matrix->max[0], matrix->max[1], matrix->max[2]);
}
static void
color_matrix_copy (GstD3D11ColorMatrix * dst, const GstD3D11ColorMatrix * src)
{
for (guint i = 0; i < 3; i++) {
for (guint j = 0; j < 3; j++) {
dst->matrix[i][j] = src->matrix[i][j];
}
}
}
static void
color_matrix_multiply (GstD3D11ColorMatrix * dst, GstD3D11ColorMatrix * a,
GstD3D11ColorMatrix * b)
{
GstD3D11ColorMatrix tmp;
for (guint i = 0; i < 3; i++) {
for (guint j = 0; j < 3; j++) {
gdouble val = 0;
for (guint k = 0; k < 3; k++) {
val += a->matrix[i][k] * b->matrix[k][j];
}
tmp.matrix[i][j] = val;
}
}
color_matrix_copy (dst, &tmp);
}
static void
color_matrix_identity (GstD3D11ColorMatrix * m)
{
for (guint i = 0; i < 3; i++) {
for (guint j = 0; j < 3; j++) {
if (i == j)
m->matrix[i][j] = 1.0;
else
m->matrix[i][j] = 0;
}
}
}
static gboolean
color_matrix_invert (GstD3D11ColorMatrix * dst, GstD3D11ColorMatrix * src)
{
GstD3D11ColorMatrix tmp;
gdouble det;
color_matrix_identity (&tmp);
for (guint j = 0; j < 3; j++) {
for (guint i = 0; i < 3; i++) {
tmp.matrix[j][i] =
src->matrix[(i + 1) % 3][(j + 1) % 3] *
src->matrix[(i + 2) % 3][(j + 2) % 3] -
src->matrix[(i + 1) % 3][(j + 2) % 3] *
src->matrix[(i + 2) % 3][(j + 1) % 3];
}
}
det = tmp.matrix[0][0] * src->matrix[0][0] +
tmp.matrix[0][1] * src->matrix[1][0] +
tmp.matrix[0][2] * src->matrix[2][0];
if (det == 0)
return FALSE;
for (guint j = 0; j < 3; j++) {
for (guint i = 0; i < 3; i++) {
tmp.matrix[i][j] /= det;
}
}
color_matrix_copy (dst, &tmp);
return TRUE;
}
/**
* gst_d3d11_color_range_adjust_matrix_unorm:
* @in_info: a #GstVideoInfo
* @out_info: a #GstVideoInfo
* @matrix: a #GstD3D11ColorMatrix
*
* Calculates matrix for color range adjustment. Both input and output
* signals are in normalized [0.0..1.0] space.
*
* Resulting values can be calculated by
* | Yout | | Yin | | matrix.offset[0] |
* | Uout | = clamp ( matrix.matrix * | Uin | + | matrix.offset[1] |, matrix.min, matrix.max )
* | Vout | | Vin | | matrix.offset[2] |
*
* Returns: %TRUE if successful
*/
gboolean
gst_d3d11_color_range_adjust_matrix_unorm (const GstVideoInfo * in_info,
const GstVideoInfo * out_info, GstD3D11ColorMatrix * matrix)
{
gboolean in_rgb, out_rgb;
gint in_offset[GST_VIDEO_MAX_COMPONENTS];
gint in_scale[GST_VIDEO_MAX_COMPONENTS];
gint out_offset[GST_VIDEO_MAX_COMPONENTS];
gint out_scale[GST_VIDEO_MAX_COMPONENTS];
GstVideoColorRange in_range;
GstVideoColorRange out_range;
gdouble src_fullscale, dst_fullscale;
g_return_val_if_fail (in_info != nullptr, FALSE);
g_return_val_if_fail (out_info != nullptr, FALSE);
g_return_val_if_fail (matrix != nullptr, FALSE);
memset (matrix, 0, sizeof (GstD3D11ColorMatrix));
for (guint i = 0; i < 3; i++) {
matrix->matrix[i][i] = 1.0;
matrix->matrix[i][i] = 1.0;
matrix->matrix[i][i] = 1.0;
matrix->max[i] = 1.0;
}
in_rgb = GST_VIDEO_INFO_IS_RGB (in_info);
out_rgb = GST_VIDEO_INFO_IS_RGB (out_info);
if (in_rgb != out_rgb) {
GST_WARNING ("Invalid format conversion");
return FALSE;
}
in_range = in_info->colorimetry.range;
out_range = out_info->colorimetry.range;
if (in_range == GST_VIDEO_COLOR_RANGE_UNKNOWN) {
GST_WARNING ("Unknown input color range");
if (in_rgb || GST_VIDEO_INFO_IS_GRAY (in_info))
in_range = GST_VIDEO_COLOR_RANGE_0_255;
else
in_range = GST_VIDEO_COLOR_RANGE_16_235;
}
if (out_range == GST_VIDEO_COLOR_RANGE_UNKNOWN) {
GST_WARNING ("Unknown output color range");
if (out_rgb || GST_VIDEO_INFO_IS_GRAY (out_info))
out_range = GST_VIDEO_COLOR_RANGE_0_255;
else
out_range = GST_VIDEO_COLOR_RANGE_16_235;
}
src_fullscale = (gdouble) ((1 << in_info->finfo->depth[0]) - 1);
dst_fullscale = (gdouble) ((1 << out_info->finfo->depth[0]) - 1);
gst_video_color_range_offsets (in_range, in_info->finfo, in_offset, in_scale);
gst_video_color_range_offsets (out_range,
out_info->finfo, out_offset, out_scale);
matrix->min[0] = matrix->min[1] = matrix->min[2] =
(gdouble) out_offset[0] / dst_fullscale;
matrix->max[0] = (out_scale[0] + out_offset[0]) / dst_fullscale;
matrix->max[1] = matrix->max[2] =
(out_scale[1] + out_offset[0]) / dst_fullscale;
if (in_info->colorimetry.range == out_info->colorimetry.range) {
GST_DEBUG ("Same color range");
return TRUE;
}
/* Formula
*
* 1) Scales and offset compensates input to [0..1] range
* SRC_NORM[i] = (src[i] * src_fullscale - in_offset[i]) / in_scale[i]
* = (src[i] * src_fullscale / in_scale[i]) - in_offset[i] / in_scale[i]
*
* 2) Reverse to output UNIT scale
* DST_UINT[i] = SRC_NORM[i] * out_scale[i] + out_offset[i]
* = src[i] * src_fullscale * out_scale[i] / in_scale[i]
* - in_offset[i] * out_scale[i] / in_scale[i]
* + out_offset[i]
*
* 3) Back to [0..1] scale
* dst[i] = DST_UINT[i] / dst_fullscale
* = COEFF[i] * src[i] + OFF[i]
* where
* src_fullscale * out_scale[i]
* COEFF[i] = ------------------------------
* dst_fullscale * in_scale[i]
*
* out_offset[i] in_offset[i] * out_scale[i]
* OFF[i] = -------------- - ------------------------------
* dst_fullscale dst_fullscale * in_scale[i]
*/
for (guint i = 0; i < 3; i++) {
matrix->matrix[i][i] = (src_fullscale * out_scale[i]) /
(dst_fullscale * in_scale[i]);
matrix->offset[i] = (out_offset[i] / dst_fullscale) -
((gdouble) in_offset[i] * out_scale[i] / (dst_fullscale * in_scale[i]));
}
return TRUE;
}
/**
* gst_d3d11_yuv_to_rgb_matrix_unorm:
* @in_yuv_info: a #GstVideoInfo of input YUV signal
* @out_rgb_info: a #GstVideoInfo of output RGB signal
* @matrix: a #GstD3D11ColorMatrix
*
* Calculates transform matrix from YUV to RGB conversion. Both input and output
* signals are in normalized [0.0..1.0] space and additional gamma decoding
* or primary/transfer function transform is not performed by this matrix.
*
* Resulting non-linear RGB values can be calculated by
* | R' | | Y' | | matrix.offset[0] |
* | G' | = clamp ( matrix.matrix * | Cb | + | matrix.offset[1] | matrix.min, matrix.max )
* | B' | | Cr | | matrix.offset[2] |
*
* Returns: %TRUE if successful
*/
gboolean
gst_d3d11_yuv_to_rgb_matrix_unorm (const GstVideoInfo * in_yuv_info,
const GstVideoInfo * out_rgb_info, GstD3D11ColorMatrix * matrix)
{
gint offset[4], scale[4];
gdouble Kr, Kb, Kg;
g_return_val_if_fail (in_yuv_info != nullptr, FALSE);
g_return_val_if_fail (out_rgb_info != nullptr, FALSE);
g_return_val_if_fail (matrix != nullptr, FALSE);
/*
* <Formula>
*
* Input: Unsigned normalized Y'CbCr(unorm), [0.0..1.0] range
* Output: Unsigned normalized non-linear R'G'B'(unorm), [0.0..1.0] range
*
* 1) Y'CbCr(unorm) to scaled Y'CbCr
* | Y' | | Y'(unorm) |
* | Cb | = S | Cb(unorm) |
* | Cb | | Cr(unorm) |
* where S = (2 ^ bitdepth) - 1
*
* 2) Y'CbCr to YPbPr
* Y = (Y' - offsetY ) / scaleY
* Pb = [(Cb - offsetCbCr) / scaleCbCr]
* Pr = [(Cr - offsetCrCr) / scaleCrCr]
* =>
* Y = Y'(unorm) * Sy + Oy
* Pb = Cb(unorm) * Suv + Ouv
* Pb = Cr(unorm) * Suv + Ouv
* where
* Sy = S / scaleY
* Suv = S / scaleCbCr
* Oy = -(offsetY / scaleY)
* Ouv = -(offsetCbCr / scaleCbCr)
*
* 3) YPbPr to R'G'B'
* | R' | | Y |
* | G' | = M *| Pb |
* | B' | | Pr |
* where
* | vecR |
* M = | vecG |
* | vecB |
* vecR = | 1, 0 , 2(1 - Kr) |
* vecG = | 1, -(Kb/Kg) * 2(1 - Kb), -(Kr/Kg) * 2(1 - Kr) |
* vecB = | 1, 2(1 - Kb) , 0 |
* =>
* R' = dot(vecR, (Syuv * Y'CbCr(unorm))) + dot(vecR, Offset)
* G' = dot(vecG, (Svuy * Y'CbCr(unorm))) + dot(vecG, Offset)
* B' = dot(vecB, (Syuv * Y'CbCr(unorm)) + dot(vecB, Offset)
* where
* | Sy, 0, 0 |
* Syuv = | 0, Suv, 0 |
* | 0 0, Suv |
*
* | Oy |
* Offset = | Ouv |
* | Ouv |
*
* 4) YUV -> RGB matrix
* | R' | | Y'(unorm) | | offsetA |
* | G' | = Matrix * | Cb(unorm) | + | offsetB |
* | B' | | Cr(unorm) | | offsetC |
*
* where
* | vecR |
* Matrix = | vecG | * Syuv
* | vecB |
*
* offsetA = dot(vecR, Offset)
* offsetB = dot(vecG, Offset)
* offsetC = dot(vecB, Offset)
*
* 4) Consider 16-235 scale RGB
* RGBfull(0..255) -> RGBfull(16..235) matrix is represented by
* | Rs | | Rf | | Or |
* | Gs | = Ms | Gf | + | Og |
* | Bs | | Bf | | Ob |
*
* Combining all matrix into
* | Rs | | Y'(unorm) | | offsetA | | Or |
* | Gs | = Ms * ( Matrix * | Cb(unorm) | + | offsetB | ) + | Og |
* | Bs | | Cr(unorm) | | offsetC | | Ob |
*
* | Y'(unorm) | | offsetA | | Or |
* = Ms * Matrix * | Cb(unorm) | + Ms | offsetB | + | Og |
* | Cr(unorm) | | offsetC | | Ob |
*/
memset (matrix, 0, sizeof (GstD3D11ColorMatrix));
for (guint i = 0; i < 3; i++)
matrix->max[i] = 1.0;
gst_video_color_range_offsets (in_yuv_info->colorimetry.range,
in_yuv_info->finfo, offset, scale);
if (gst_video_color_matrix_get_Kr_Kb (in_yuv_info->colorimetry.matrix,
&Kr, &Kb)) {
guint S;
gdouble Sy, Suv;
gdouble Oy, Ouv;
gdouble vecR[3], vecG[3], vecB[3];
Kg = 1.0 - Kr - Kb;
vecR[0] = 1.0;
vecR[1] = 0;
vecR[2] = 2 * (1 - Kr);
vecG[0] = 1.0;
vecG[1] = -(Kb / Kg) * 2 * (1 - Kb);
vecG[2] = -(Kr / Kg) * 2 * (1 - Kr);
vecB[0] = 1.0;
vecB[1] = 2 * (1 - Kb);
vecB[2] = 0;
/* Assume all components has the same bitdepth */
S = (1 << in_yuv_info->finfo->depth[0]) - 1;
Sy = (gdouble) S / scale[0];
Suv = (gdouble) S / scale[1];
Oy = -((gdouble) offset[0] / scale[0]);
Ouv = -((gdouble) offset[1] / scale[1]);
matrix->matrix[0][0] = Sy * vecR[0];
matrix->matrix[1][0] = Sy * vecG[0];
matrix->matrix[2][0] = Sy * vecB[0];
matrix->matrix[0][1] = Suv * vecR[1];
matrix->matrix[1][1] = Suv * vecG[1];
matrix->matrix[2][1] = Suv * vecB[1];
matrix->matrix[0][2] = Suv * vecR[2];
matrix->matrix[1][2] = Suv * vecG[2];
matrix->matrix[2][2] = Suv * vecB[2];
matrix->offset[0] = vecR[0] * Oy + vecR[1] * Ouv + vecR[2] * Ouv;
matrix->offset[1] = vecG[0] * Oy + vecG[1] * Ouv + vecG[2] * Ouv;
matrix->offset[2] = vecB[0] * Oy + vecB[1] * Ouv + vecB[2] * Ouv;
/* Apply RGB range scale matrix */
if (out_rgb_info->colorimetry.range == GST_VIDEO_COLOR_RANGE_16_235) {
GstD3D11ColorMatrix scale_matrix, rst;
GstVideoInfo full_rgb = *out_rgb_info;
full_rgb.colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
if (gst_d3d11_color_range_adjust_matrix_unorm (&full_rgb,
out_rgb_info, &scale_matrix)) {
/* Ms * Matrix */
color_matrix_multiply (&rst, &scale_matrix, matrix);
/* Ms * transform offsets */
for (guint i = 0; i < 3; i++) {
gdouble val = 0;
for (guint j = 0; j < 3; j++) {
val += scale_matrix.matrix[i][j] * matrix->offset[j];
}
rst.offset[i] = val + scale_matrix.offset[i];
}
/* copy back to output matrix */
for (guint i = 0; i < 3; i++) {
for (guint j = 0; j < 3; j++) {
matrix->matrix[i][j] = rst.matrix[i][j];
}
matrix->offset[i] = rst.offset[i];
matrix->min[i] = scale_matrix.min[i];
matrix->max[i] = scale_matrix.max[i];
}
}
}
} else {
/* Unknown matrix */
matrix->matrix[0][0] = 1.0;
matrix->matrix[1][1] = 1.0;
matrix->matrix[2][2] = 1.0;
}
return TRUE;
}
/**
* gst_d3d11_rgb_to_yuv_matrix_unorm:
* @in_rgb_info: a #GstVideoInfo of input RGB signal
* @out_yuv_info: a #GstVideoInfo of output YUV signal
* @matrix: a #GstD3D11ColorMatrix
*
* Calculates transform matrix from RGB to YUV conversion. Both input and output
* signals are in normalized [0.0..1.0] space and additional gamma decoding
* or primary/transfer function transform is not performed by this matrix.
*
* Resulting RGB values can be calculated by
* | Y' | | R' | | matrix.offset[0] |
* | Cb | = clamp ( matrix.matrix * | G' | + | matrix.offset[1] |, matrix.min, matrix.max )
* | Cr | | B' | | matrix.offset[2] |
*
* Returns: %TRUE if successful
*/
gboolean
gst_d3d11_rgb_to_yuv_matrix_unorm (const GstVideoInfo * in_rgb_info,
const GstVideoInfo * out_yuv_info, GstD3D11ColorMatrix * matrix)
{
gint offset[4], scale[4];
gdouble Kr, Kb, Kg;
g_return_val_if_fail (in_rgb_info != nullptr, FALSE);
g_return_val_if_fail (out_yuv_info != nullptr, FALSE);
g_return_val_if_fail (matrix != nullptr, FALSE);
/*
* <Formula>
*
* Input: Unsigned normalized non-linear R'G'B'(unorm), [0.0..1.0] range
* Output: Unsigned normalized Y'CbCr(unorm), [0.0..1.0] range
*
* 1) R'G'B' to YPbPr
* | Y | | R' |
* | Pb | = M *| G' |
* | Pr | | B' |
* where
* | vecY |
* M = | vecU |
* | vecV |
* vecY = | Kr , Kg , Kb |
* vecU = | -0.5*Kr/(1-Kb), -0.5*Kg/(1-Kb), 0.5 |
* vecV = | 0.5 , -0.5*Kg/(1-Kr), -0.5*Kb(1-Kr) |
*
* 2) YPbPr to Y'CbCr(unorm)
* Y'(unorm) = (Y * scaleY + offsetY) / S
* Cb(unorm) = (Pb * scaleCbCr + offsetCbCr) / S
* Cr(unorm) = (Pr * scaleCbCr + offsetCbCr) / S
* =>
* Y'(unorm) = (Y * scaleY / S) + (offsetY / S)
* Cb(unorm) = (Pb * scaleCbCr / S) + (offsetCbCr / S)
* Cr(unorm) = (Pb * scaleCbCr / S) + (offsetCbCr / S)
* where S = (2 ^ bitdepth) - 1
*
* 3) RGB -> YUV matrix
* | Y'(unorm) | | R' | | offsetA |
* | Cb(unorm) | = Matrix * | G' | + | offsetB |
* | Cr(unorm) | | B' | | offsetC |
*
* where
* | (scaleY/S) * vecY |
* Matrix = | (scaleCbCr/S) * vecU |
* | (scaleCbCr/S) * vecV |
*
* offsetA = offsetY / S
* offsetB = offsetCbCr / S
* offsetC = offsetCbCr / S
*
* 4) Consider 16-235 scale RGB
* RGBstudio(16..235) -> RGBfull(0..255) matrix is represented by
* | Rf | | Rs | | Or |
* | Gf | = Ms | Gs | + | Og |
* | Bf | | Bs | | Ob |
*
* Combining all matrix into
* | Y'(unorm) | | Rs | | Or | | offsetA |
* | Cb(unorm) | = Matrix * ( Ms | Gs | + | Og | ) + | offsetB |
* | Cr(unorm) | | Bs | | Ob | | offsetC |
*
* | Rs | | Or | | offsetA |
* = Matrix * Ms | Gs | + Matrix | Og | + | offsetB |
* | Bs | | Ob | | offsetB |
*/
memset (matrix, 0, sizeof (GstD3D11ColorMatrix));
for (guint i = 0; i < 3; i++)
matrix->max[i] = 1.0;
gst_video_color_range_offsets (out_yuv_info->colorimetry.range,
out_yuv_info->finfo, offset, scale);
if (gst_video_color_matrix_get_Kr_Kb (out_yuv_info->colorimetry.matrix,
&Kr, &Kb)) {
guint S;
gdouble Sy, Suv;
gdouble Oy, Ouv;
gdouble vecY[3], vecU[3], vecV[3];
Kg = 1.0 - Kr - Kb;
vecY[0] = Kr;
vecY[1] = Kg;
vecY[2] = Kb;
vecU[0] = -0.5 * Kr / (1 - Kb);
vecU[1] = -0.5 * Kg / (1 - Kb);
vecU[2] = 0.5;
vecV[0] = 0.5;
vecV[1] = -0.5 * Kg / (1 - Kr);
vecV[2] = -0.5 * Kb / (1 - Kr);
/* Assume all components has the same bitdepth */
S = (1 << out_yuv_info->finfo->depth[0]) - 1;
Sy = (gdouble) scale[0] / S;
Suv = (gdouble) scale[1] / S;
Oy = (gdouble) offset[0] / S;
Ouv = (gdouble) offset[1] / S;
for (guint i = 0; i < 3; i++) {
matrix->matrix[0][i] = Sy * vecY[i];
matrix->matrix[1][i] = Suv * vecU[i];
matrix->matrix[2][i] = Suv * vecV[i];
}
matrix->offset[0] = Oy;
matrix->offset[1] = Ouv;
matrix->offset[2] = Ouv;
matrix->min[0] = Oy;
matrix->min[1] = Oy;
matrix->min[2] = Oy;
matrix->max[0] = ((gdouble) scale[0] + offset[0]) / S;
matrix->max[1] = ((gdouble) scale[1] + offset[0]) / S;
matrix->max[2] = ((gdouble) scale[1] + offset[0]) / S;
/* Apply RGB range scale matrix */
if (in_rgb_info->colorimetry.range == GST_VIDEO_COLOR_RANGE_16_235) {
GstD3D11ColorMatrix scale_matrix, rst;
GstVideoInfo full_rgb = *in_rgb_info;
full_rgb.colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
if (gst_d3d11_color_range_adjust_matrix_unorm (in_rgb_info,
&full_rgb, &scale_matrix)) {
/* Matrix * Ms */
color_matrix_multiply (&rst, matrix, &scale_matrix);
/* Matrix * scale offsets */
for (guint i = 0; i < 3; i++) {
gdouble val = 0;
for (guint j = 0; j < 3; j++) {
val += matrix->matrix[i][j] * scale_matrix.offset[j];
}
rst.offset[i] = val + matrix->offset[i];
}
/* copy back to output matrix */
for (guint i = 0; i < 3; i++) {
for (guint j = 0; j < 3; j++) {
matrix->matrix[i][j] = rst.matrix[i][j];
}
matrix->offset[i] = rst.offset[i];
}
}
}
} else {
/* Unknown matrix */
matrix->matrix[0][0] = 1.0;
matrix->matrix[1][1] = 1.0;
matrix->matrix[2][2] = 1.0;
}
return TRUE;
}
static gboolean
rgb_to_xyz_matrix (const GstVideoColorPrimariesInfo * info,
GstD3D11ColorMatrix * matrix)
{
GstD3D11ColorMatrix m, im;
gdouble Sr, Sg, Sb;
gdouble Xw, Yw, Zw;
if (info->Rx == 0 || info->Gx == 0 || info->By == 0 || info->Wy == 0)
return FALSE;
color_matrix_identity (&m);
m.matrix[0][0] = info->Rx / info->Ry;
m.matrix[1][0] = 1.0;
m.matrix[2][0] = (1.0 - info->Rx - info->Ry) / info->Ry;
m.matrix[0][1] = info->Gx / info->Gy;
m.matrix[1][1] = 1.0;
m.matrix[2][1] = (1.0 - info->Gx - info->Gy) / info->Gy;
m.matrix[0][2] = info->Bx / info->By;
m.matrix[1][2] = 1.0;
m.matrix[2][2] = (1.0 - info->Bx - info->By) / info->By;
if (!color_matrix_invert (&im, &m))
return FALSE;
Xw = info->Wx / info->Wy;
Yw = 1.0;
Zw = (1.0 - info->Wx - info->Wy) / info->Wy;
Sr = im.matrix[0][0] * Xw + im.matrix[0][1] * Yw + im.matrix[0][2] * Zw;
Sg = im.matrix[1][0] * Xw + im.matrix[1][1] * Yw + im.matrix[1][2] * Zw;
Sb = im.matrix[2][0] * Xw + im.matrix[2][1] * Yw + im.matrix[2][2] * Zw;
for (guint i = 0; i < 3; i++) {
m.matrix[i][0] *= Sr;
m.matrix[i][1] *= Sg;
m.matrix[i][2] *= Sb;
}
color_matrix_copy (matrix, &m);
return TRUE;
}
/**
* gst_d3d11_color_primaries_matrix_unorm:
* @in_info: a #GstVideoColorPrimariesInfo of input signal
* @out_info: a #GstVideoColorPrimariesInfo of output signal
* @matrix: a #GstD3D11ColorMatrix
*
* Calculates color primaries conversion matrix
*
* Resulting RGB values can be calculated by
* | Rout | | Rin |
* | Gout | = saturate ( matrix.matrix * | Gin | )
* | Bout | | Bin |
*
* Returns: %TRUE if successful
*/
gboolean
gst_d3d11_color_primaries_matrix_unorm (const GstVideoColorPrimariesInfo *
in_info, const GstVideoColorPrimariesInfo * out_info,
GstD3D11ColorMatrix * matrix)
{
GstD3D11ColorMatrix Ms, invMd, ret;
g_return_val_if_fail (in_info != nullptr, FALSE);
g_return_val_if_fail (out_info != nullptr, FALSE);
g_return_val_if_fail (matrix != nullptr, FALSE);
/*
* <Formula>
*
* 1) RGB -> XYZ conversion
* | X | | R |
* | Y | = M | G |
* | Z | | B |
* where
* | SrXr, SgXg, SbXb |
* M = | SrYr, SgYg, SbYb |
* | SrZr, SgZg, SbZb |
*
* Xr = xr / yr
* Yr = 1
* Zr = (1 - xr - yr) / yr
* xr and yr are xy coordinates of red primary in the CIE 1931 color space.
* And its applied to G and B components
*
* | Sr | | Xr, Xg, Xb | | Xw |
* | Sg | = inv( | Yr, Yg, Yb | ) * | Yw |
* | Sb | | Zr, Zg, Zb | | Zw |
*
* 2) XYZsrc -> XYZdst conversion
* Apply chromatic adaptation
* | Xdst | | Xsrc |
* | Ydst | = Mc | Ysrc |
* | Zdst | | Zsrc |
* where
* | Xwdst / Xwsrc, 0 , 0 |
* Mc = | 0 , Ywdst / Ywsrc, 0 |
* | 0 , 0 , Zwdst / Zwsrc |
*
* where
*
* 3) Final matrix
* | Rd | | Rs |
* | Gd | = inv (Md) * Mc * Ms | Gs |
* | Bd | | Bs |
*/
memset (matrix, 0, sizeof (GstD3D11ColorMatrix));
for (guint i = 0; i < 3; i++)
matrix->max[i] = 1.0;
if (!rgb_to_xyz_matrix (in_info, &Ms)) {
GST_WARNING ("Failed to get src XYZ matrix");
return FALSE;
}
if (!rgb_to_xyz_matrix (out_info, &invMd) ||
!color_matrix_invert (&invMd, &invMd)) {
GST_WARNING ("Failed to get dst XYZ matrix");
return FALSE;
}
if (in_info->Wx != out_info->Wx || in_info->Wy != out_info->Wy) {
GstD3D11ColorMatrix Mc;
color_matrix_identity (&Mc);
Mc.matrix[0][0] = (out_info->Wx / out_info->Wy) /
(in_info->Wx / in_info->Wy);
/* Yw == 1.0 */
Mc.matrix[2][2] = ((1.0 - out_info->Wx - out_info->Wy) / out_info->Wy) /
((1.0 - in_info->Wx - in_info->Wy) / in_info->Wy);
color_matrix_multiply (&ret, &Mc, &Ms);
} else {
color_matrix_copy (&ret, &Ms);
}
color_matrix_multiply (&ret, &invMd, &ret);
color_matrix_copy (matrix, &ret);
return TRUE;
}
Reference in a new issue View git blame Copy permalink