1266487631
Implement utility for applying partial updates to video frames. Bug: webrtc:10152 Change-Id: I295fa9f792b96bbf1140a13f1f04e4f9deaccd5c Reviewed-on: https://webrtc-review.googlesource.com/c/120408 Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26522}
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*
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* Copyright (c) 2019 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 VIDEO_PARTIAL_FRAME_ASSEMBLER_H_
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#define VIDEO_PARTIAL_FRAME_ASSEMBLER_H_
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#include "api/video/i420_buffer.h"
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#include "api/video/video_frame.h"
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namespace webrtc {
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// Maintains cache of a full resolution frame buffer and applies partial
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// updates to it.
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// This class is not thread-safe.
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class PartialFrameAssembler {
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public:
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PartialFrameAssembler();
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~PartialFrameAssembler();
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// Applies |input_buffer| to the cached buffer and sets buffer for
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// |uncompresed_frame| to a full updated image.
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// Returns false on any error. In that case the buffer will be invalidated
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// and subsequent updates will also return error until full resolution frame
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// is processed.
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bool ApplyPartialUpdate(
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const rtc::scoped_refptr<VideoFrameBuffer>& buffer,
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VideoFrame* uncompressed_frame,
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const VideoFrame::PartialFrameDescription* partial_desc);
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// Clears internal buffer.
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void Reset();
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private:
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rtc::scoped_refptr<I420Buffer> cached_frame_buffer_;
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};
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} // namespace webrtc
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#endif // VIDEO_PARTIAL_FRAME_ASSEMBLER_H_
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