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6c3311a39e
* Create staging texture only when the CPU access is requested. Note that we should avoid the CPU access to d3d11 memory as mush as possible. Incoming d3d11upload and d3d11download will take this GPU memory upload/download. * Upload/Download texture memory from/to staging only if it needed, similar to GstGL PBO implementation. * Define more dxgi formats for future usage (e.g., color conversion, dxva2 decoder). Because I420_* formats are not supported formats by dxgi, each plane should be handled likewise GstGL separately, but NV12/P10 formats might be supported ones. So we decide the number of d3d11memory per GstBuffer for video memory depending on OS version and dxgi format. For instance, if NV12 is supported by OS, only one d3d11memory with DXGI_FORMAT_NV12 texture can be allocated by this commit. One use case of such texture is DXVA. In case DXVA decoder, it might need to produce decoded data to one DXGI_FORMAT_NV12 instead of seperate Y and UV planes. Such behavior will be controlled via configuration of GstD3D11BufferPool and default configuration is separate resources per plane.
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/*
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* 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_BUFFER_POOL_H__
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#define __GST_D3D11_BUFFER_POOL_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstd3d11_fwd.h"
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G_BEGIN_DECLS
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#define GST_TYPE_D3D11_BUFFER_POOL (gst_d3d11_buffer_pool_get_type())
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#define GST_D3D11_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_D3D11_BUFFER_POOL, GstD3D11BufferPool))
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#define GST_D3D11_BUFFER_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS((klass), GST_TYPE_D3D11_BUFFER_POOL, GstD3D11BufferPoolClass))
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#define GST_IS_D3D11_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_D3D11_BUFFER_POOL))
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#define GST_IS_D3D11_BUFFER_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_D3D11_BUFFER_POOL))
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#define GST_D3D11_BUFFER_POOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_D3D11_BUFFER_POOL, GstD3D11BufferPoolClass))
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struct _GstD3D11BufferPool
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{
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GstBufferPool parent;
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/* re-calculated buffer size based on d3d11 pitch and stride */
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guint buffer_size;
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/*< private >*/
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GstD3D11BufferPoolPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstD3D11BufferPoolClass
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{
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GstBufferPoolClass bufferpool_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_d3d11_buffer_pool_get_type (void);
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GstBufferPool * gst_d3d11_buffer_pool_new (GstD3D11Device *device);
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GstD3D11AllocationParams * gst_buffer_pool_config_get_d3d11_allocation_params (GstStructure * config);
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void gst_buffer_pool_config_set_d3d11_allocation_params (GstStructure * config,
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GstD3D11AllocationParams * params);
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G_END_DECLS
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#endif /* __GST_D3D11_BUFFER_POOL_H__ */
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