85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
/* Copyright 2023 The MediaPipe Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include <memory>
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#include "mediapipe/framework/formats/frame_buffer.h"
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#include "mediapipe/framework/formats/image_frame.h"
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#include "mediapipe/framework/formats/yuv_image.h"
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#include "mediapipe/gpu/frame_buffer_view.h"
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#include "mediapipe/gpu/gpu_buffer_format.h"
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#include "mediapipe/gpu/gpu_buffer_storage.h"
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#include "mediapipe/gpu/image_frame_view.h"
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#ifndef MEDIAPIPE_GPU_GPU_BUFFER_STORAGE_YUV_IMAGE_H_
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#define MEDIAPIPE_GPU_GPU_BUFFER_STORAGE_YUV_IMAGE_H_
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namespace mediapipe {
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namespace internal {
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template <>
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class ViewProvider<YUVImage> {
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public:
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virtual ~ViewProvider() = default;
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virtual std::shared_ptr<const YUVImage> GetReadView(
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types<YUVImage>) const = 0;
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virtual std::shared_ptr<YUVImage> GetWriteView(types<YUVImage>) = 0;
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};
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} // namespace internal
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// TODO: add support for I444.
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class GpuBufferStorageYuvImage
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: public internal::GpuBufferStorageImpl<
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GpuBufferStorageYuvImage, internal::ViewProvider<YUVImage>,
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internal::ViewProvider<FrameBuffer>,
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internal::ViewProvider<ImageFrame>> {
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public:
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// Constructor from an existing YUVImage with FOURCC_NV12, FOURCC_NV21,
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// FOURCC_YV12 or FOURCC_I420 format.
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explicit GpuBufferStorageYuvImage(std::shared_ptr<YUVImage> yuv_image);
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// Constructor. Supported formats are kNV12, kNV21, kYV12 and kI420.
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// Stride is set by default so that row boundaries align to 16 bytes.
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GpuBufferStorageYuvImage(int width, int height, GpuBufferFormat format);
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int width() const override { return yuv_image_->width(); }
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int height() const override { return yuv_image_->height(); }
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GpuBufferFormat format() const override;
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std::shared_ptr<const YUVImage> GetReadView(
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internal::types<YUVImage>) const override {
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return yuv_image_;
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}
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std::shared_ptr<YUVImage> GetWriteView(internal::types<YUVImage>) override {
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return yuv_image_;
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}
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std::shared_ptr<const FrameBuffer> GetReadView(
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internal::types<FrameBuffer>) const override;
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std::shared_ptr<FrameBuffer> GetWriteView(
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internal::types<FrameBuffer>) override;
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std::shared_ptr<const ImageFrame> GetReadView(
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internal::types<ImageFrame>) const override;
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std::shared_ptr<ImageFrame> GetWriteView(
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internal::types<ImageFrame>) override;
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private:
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std::shared_ptr<YUVImage> yuv_image_;
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};
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} // namespace mediapipe
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#endif // MEDIAPIPE_GPU_GPU_BUFFER_STORAGE_YUV_IMAGE_H_
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