зеркало из https://github.com/mozilla/gecko-dev.git
52 строки
1.6 KiB
C++
52 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et ft=cpp : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_VideoFrameUtil_h
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#define mozilla_VideoFrameUtil_h
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#include "mozilla/camera/PCameras.h"
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namespace webrtc {
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class VideoFrame;
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}
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namespace mozilla
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{
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class ShmemBuffer;
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// Util methods for working with webrtc::VideoFrame(s) and
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// the IPC classes that are used to deliver their contents to the
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// MediaEnginge
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class VideoFrameUtils {
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public:
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// Returns the total number of bytes necessary to copy a VideoFrame's buffer
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// across all planes.
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static size_t TotalRequiredBufferSize(const webrtc::VideoFrame & frame);
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// Initializes a camera::VideoFrameProperties from a VideoFrameBuffer
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static void InitFrameBufferProperties(const webrtc::VideoFrame& aVideoFrame,
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camera::VideoFrameProperties & aDestProperties);
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// Copies the buffers out of a VideoFrameBuffer into a buffer.
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// Attempts to make as few memcopies as possible.
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static void CopyVideoFrameBuffers(uint8_t * aDestBuffer,
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const size_t aDestBufferSize,
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const webrtc::VideoFrame & aVideoFrame);
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// Copies the buffers in a VideoFrameBuffer into a Shmem
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// returns the eno from the underlying memcpy.
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static void CopyVideoFrameBuffers(ShmemBuffer & aDestShmem,
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const webrtc::VideoFrame & aVideoFrame);
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};
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} /* namespace mozilla */
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#endif
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