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ac26860a80
Rewriting GstD3D11Converter (equivalent to GstVideoConverter) to optimize some conversion path and clean up. * Extract YUV <-> RGB conversion matrix building method to utils. It will be used by other implementation * Use calculated offset values for YCbCr <-> YPbPr conversion instead of hardcoded values * Handle color range adjustment * Move transform matrix building helper function to utils. The method will be used by other elements * Use single constant buffer. Multiple constatne buffer for conversion pipeline is almost pointless * Remove lots of duplicated HLSL code and split pixel shader code path into sampling -> colorspace conversion -> shader output packing * Avoid floating point precision error around UV coordinates * Optimize RGB -> YUV conversion path Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>
73 lines
3.2 KiB
C
73 lines
3.2 KiB
C
/* GStreamer
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* Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_D3D11_COLOR_CONVERTER_H__
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#define __GST_D3D11_COLOR_CONVERTER_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/d3d11/gstd3d11.h>
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G_BEGIN_DECLS
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typedef struct _GstD3D11Converter GstD3D11Converter;
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/**
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* GST_D3D11_CONVERTER_OPT_ALPHA_VALUE
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*
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* #G_TYPE_FLOAT, the alpha value color value to use.
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* Default is 1.0
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*/
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#define GST_D3D11_CONVERTER_OPT_ALPHA_VALUE "GstD3D11Converter.alpha-value"
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GstD3D11Converter * gst_d3d11_converter_new (GstD3D11Device * device,
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const GstVideoInfo * in_info,
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const GstVideoInfo * out_info,
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GstStructure * config);
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void gst_d3d11_converter_free (GstD3D11Converter * converter);
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gboolean gst_d3d11_converter_convert (GstD3D11Converter * converter,
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ID3D11ShaderResourceView *srv[GST_VIDEO_MAX_PLANES],
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ID3D11RenderTargetView *rtv[GST_VIDEO_MAX_PLANES],
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ID3D11BlendState *blend,
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gfloat blend_factor[4]);
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gboolean gst_d3d11_converter_convert_unlocked (GstD3D11Converter * converter,
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ID3D11ShaderResourceView *srv[GST_VIDEO_MAX_PLANES],
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ID3D11RenderTargetView *rtv[GST_VIDEO_MAX_PLANES],
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ID3D11BlendState *blend,
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gfloat blend_factor[4]);
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gboolean gst_d3d11_converter_update_viewport (GstD3D11Converter * converter,
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const D3D11_VIEWPORT * viewport);
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gboolean gst_d3d11_converter_update_src_rect (GstD3D11Converter * converter,
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const RECT * src_rect);
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gboolean gst_d3d11_converter_update_dest_rect (GstD3D11Converter * converter,
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const RECT * dest_rect);
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gboolean gst_d3d11_converter_update_config (GstD3D11Converter * converter,
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GstStructure * config);
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G_END_DECLS
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#endif /* __GST_D3D11_COLOR_CONVERTER_H__ */
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