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c11f8fa930
Rewriting GstCudaConverter object, since the old implementation was not well organized and it's hard to add new features. Moreover, the conversion operations were not very optimized. Major change of this implementation: * Remove redundant intermediate conversion operations such as any RGB -> ARGB(64) conversion or any YUV -> Y444 (or 16bits Y444). That's not required most of cases. The only required case is converting 24bits (such as RGB/BGR) packed format to 32bits format because CUDA texture object does not support sampling 24bits format * Use normalized sample fetching (i.e., [0, 1] range float value) and also normalized coordinates system for CUDA texture. It's consistent with the other graphics APIs such as Direct3D and OpenGL, that makes sampling operations much easier. * Support a kind of viewport and adopt math for colorspace conversion from GstD3D11 implementation Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>
99 lines
3.4 KiB
C
99 lines
3.4 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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#pragma once
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#include <gst/video/video.h>
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#include <gst/cuda/gstcudacontext.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CUDA_CONVERTER (gst_cuda_converter_get_type())
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#define GST_CUDA_CONVERTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CUDA_CONVERTER,GstCudaConverter))
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#define GST_CUDA_CONVERTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CUDA_CONVERTER,GstCudaConverterClass))
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#define GST_CUDA_CONVERTER_GET_CLASS(obj) (GST_CUDA_CONVERTER_CLASS(G_OBJECT_GET_CLASS(obj)))
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#define GST_IS_CUDA_CONVERTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CUDA_CONVERTER))
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#define GST_IS_CUDA_CONVERTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CUDA_CONVERTER))
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#define GST_CUDA_CONVERTER_CAST(obj) ((GstCudaConverter*)(obj))
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typedef struct _GstCudaConverter GstCudaConverter;
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typedef struct _GstCudaConverterClass GstCudaConverterClass;
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typedef struct _GstCudaConverterPrivate GstCudaConverterPrivate;
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/**
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* GST_CUDA_CONVERTER_OPT_DEST_X:
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*
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* #G_TYPE_INT, x position in the destination frame, default 0
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*/
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#define GST_CUDA_CONVERTER_OPT_DEST_X "GstCudaConverter.dest-x"
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/**
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* GST_CUDA_CONVERTER_OPT_DEST_Y:
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*
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* #G_TYPE_INT, y position in the destination frame, default 0
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*/
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#define GST_CUDA_CONVERTER_OPT_DEST_Y "GstCudaConverter.dest-y"
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/**
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* GST_CUDA_CONVERTER_OPT_DEST_WIDTH:
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*
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* #G_TYPE_INT, width in the destination frame, default destination width
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*/
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#define GST_CUDA_CONVERTER_OPT_DEST_WIDTH "GstCudaConverter.dest-width"
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/**
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* GST_CUDA_CONVERTER_OPT_DEST_HEIGHT:
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*
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* #G_TYPE_INT, height in the destination frame, default destination height
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*/
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#define GST_CUDA_CONVERTER_OPT_DEST_HEIGHT "GstCudaConverter.dest-height"
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struct _GstCudaConverter
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{
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GstObject parent;
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GstCudaContext *context;
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/*< private >*/
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GstCudaConverterPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstCudaConverterClass
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{
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GstObjectClass parent_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_cuda_converter_get_type (void);
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GstCudaConverter * gst_cuda_converter_new (const GstVideoInfo * in_info,
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const GstVideoInfo * out_info,
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GstCudaContext * context,
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GstStructure * config);
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gboolean gst_cuda_converter_convert_frame (GstCudaConverter * converter,
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GstVideoFrame * src_frame,
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GstVideoFrame * dst_frame,
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CUstream cuda_stream);
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G_END_DECLS
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