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69 lines
1.9 KiB
69 lines
1.9 KiB
/* |
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* Copyright (C) 2016 The Android Open Source Project |
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* |
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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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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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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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#ifndef V4L2_CAMERA_HAL_STREAM_FORMAT_H_ |
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#define V4L2_CAMERA_HAL_STREAM_FORMAT_H_ |
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#include <string.h> |
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#include <linux/videodev2.h> |
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#include "common.h" |
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namespace v4l2_camera_hal { |
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enum FormatCategory { |
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kFormatCategoryRaw, |
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kFormatCategoryStalling, |
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kFormatCategoryNonStalling, |
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kFormatCategoryUnknown, |
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}; |
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class StreamFormat { |
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public: |
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StreamFormat(int format, uint32_t width, uint32_t height); |
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StreamFormat(const v4l2_format& format); |
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virtual ~StreamFormat() = default; |
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// Only uint32_t members, use default generated copy and assign. |
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void FillFormatRequest(v4l2_format* format) const; |
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FormatCategory Category() const; |
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// Accessors. |
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inline uint32_t type() const { return type_; }; |
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inline uint32_t bytes_per_line() const { return bytes_per_line_; }; |
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bool operator==(const StreamFormat& other) const; |
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bool operator!=(const StreamFormat& other) const; |
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// HAL <-> V4L2 conversions |
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// Returns 0 for unrecognized. |
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static uint32_t HalToV4L2PixelFormat(int hal_pixel_format); |
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// Returns -1 for unrecognized. |
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static int V4L2ToHalPixelFormat(uint32_t v4l2_pixel_format); |
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private: |
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uint32_t type_; |
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uint32_t v4l2_pixel_format_; |
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uint32_t width_; |
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uint32_t height_; |
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uint32_t bytes_per_line_; |
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uint32_t min_buffer_size_; |
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}; |
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} // namespace v4l2_camera_hal |
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#endif // V4L2_CAMERA_HAL_STREAM_FORMAT_H_
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