712338eed2
VideoFrameBuffer is currently hard coded to be either I420 or Native. This CL makes VideoFrameBuffer more generic by moving the I420 specific functions into their own class, and adds an enum tag that represents the format and storage type of the buffer. Each buffer type is then represented as a subclass. See webrtc/api/video/video_frame_buffer.h for more info. This CL also adds support for representing I444 in VideoFrameBuffer using the new interface. Possible future buffer type candidates are RGB and NV12. BUG=webrtc:7632 TBR=stefan@webrtc.org Review-Url: https://codereview.webrtc.org/2847383002 Cr-Commit-Position: refs/heads/master@{#18098}
89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/*
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* Copyright (c) 2015 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 WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_
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#define WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_
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#include <memory>
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#include "webrtc/api/video/video_frame_buffer.h"
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#include "webrtc/base/callback.h"
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#include "webrtc/base/scoped_ref_ptr.h"
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namespace webrtc {
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// Base class for native-handle buffer is a wrapper around a |native_handle|.
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// This is used for convenience as most native-handle implementations can share
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// many VideoFrame implementations, but need to implement a few others (such
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// as their own destructors or conversion methods back to software I420).
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class NativeHandleBuffer : public VideoFrameBuffer {
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public:
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NativeHandleBuffer(void* native_handle, int width, int height);
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Type type() const override;
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int width() const override;
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int height() const override;
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const uint8_t* DataY() const override;
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const uint8_t* DataU() const override;
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const uint8_t* DataV() const override;
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int StrideY() const override;
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int StrideU() const override;
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int StrideV() const override;
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void* native_handle() const override;
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protected:
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void* native_handle_;
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const int width_;
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const int height_;
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};
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class WrappedI420Buffer : public PlanarYuvBuffer {
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public:
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WrappedI420Buffer(int width,
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int height,
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const uint8_t* y_plane,
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int y_stride,
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const uint8_t* u_plane,
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int u_stride,
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const uint8_t* v_plane,
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int v_stride,
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const rtc::Callback0<void>& no_longer_used);
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Type type() const override;
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int width() const override;
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int height() const override;
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const uint8_t* DataY() const override;
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const uint8_t* DataU() const override;
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const uint8_t* DataV() const override;
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int StrideY() const override;
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int StrideU() const override;
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int StrideV() const override;
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private:
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friend class rtc::RefCountedObject<WrappedI420Buffer>;
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~WrappedI420Buffer() override;
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const int width_;
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const int height_;
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const uint8_t* const y_plane_;
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const uint8_t* const u_plane_;
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const uint8_t* const v_plane_;
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const int y_stride_;
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const int u_stride_;
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const int v_stride_;
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rtc::Callback0<void> no_longer_used_cb_;
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};
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} // namespace webrtc
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#endif // WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_
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