84995439fd
This will allow incoming NV12 frames to be encodable by libvpx without requiring a conversion to I420 before encoding. NV12 is supported in libvpx https://chromium.googlesource.com/webm/libvpx/+/master/CHANGELOG Bug: webrtc:11916 Change-Id: I30e9c42c0607bee07691930c0248921bba09134c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/183720 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@google.com> Cr-Commit-Position: refs/heads/master@{#32061}
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_VIDEO_NV12_BUFFER_H_
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#define API_VIDEO_NV12_BUFFER_H_
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#include <memory>
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#include <utility>
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#include "api/scoped_refptr.h"
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#include "api/video/video_frame_buffer.h"
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#include "rtc_base/memory/aligned_malloc.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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// NV12 is a biplanar encoding format, with full-resolution Y and
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// half-resolution interleved UV. More information can be found at
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// http://msdn.microsoft.com/library/windows/desktop/dd206750.aspx#nv12.
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class RTC_EXPORT NV12Buffer : public NV12BufferInterface {
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public:
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static rtc::scoped_refptr<NV12Buffer> Create(int width, int height);
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static rtc::scoped_refptr<NV12Buffer> Create(int width,
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int height,
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int stride_y,
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int stride_uv);
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rtc::scoped_refptr<I420BufferInterface> ToI420() override;
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int width() const override;
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int height() const override;
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int StrideY() const override;
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int StrideUV() const override;
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const uint8_t* DataY() const override;
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const uint8_t* DataUV() const override;
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uint8_t* MutableDataY();
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uint8_t* MutableDataUV();
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protected:
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NV12Buffer(int width, int height);
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NV12Buffer(int width, int height, int stride_y, int stride_uv);
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~NV12Buffer() override;
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private:
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size_t UVOffset() const;
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const int width_;
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const int height_;
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const int stride_y_;
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const int stride_uv_;
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const std::unique_ptr<uint8_t, AlignedFreeDeleter> data_;
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};
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} // namespace webrtc
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#endif // API_VIDEO_NV12_BUFFER_H_
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