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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et ft=cpp : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at */
#ifndef mozilla_VideoFrameUtil_h
#define mozilla_VideoFrameUtil_h
#include "mozilla/camera/PCameras.h"
namespace webrtc {
class VideoFrame;
namespace mozilla {
class ShmemBuffer;
// Util methods for working with webrtc::VideoFrame(s) and
// the IPC classes that are used to deliver their contents to the
// MediaEnginge
class VideoFrameUtils {
// Returns the total number of bytes necessary to copy a VideoFrame's buffer
// across all planes.
static uint32_t TotalRequiredBufferSize(const webrtc::VideoFrame& frame);
// Initializes a camera::VideoFrameProperties from a VideoFrameBuffer
static void InitFrameBufferProperties(
const webrtc::VideoFrame& aVideoFrame,
camera::VideoFrameProperties& aDestProperties);
// Copies the buffers out of a VideoFrameBuffer into a buffer.
// Attempts to make as few memcopies as possible.
static void CopyVideoFrameBuffers(uint8_t* aDestBuffer,
const size_t aDestBufferSize,
const webrtc::VideoFrame& aVideoFrame);
// Copies the buffers in a VideoFrameBuffer into a Shmem
// returns the eno from the underlying memcpy.
static void CopyVideoFrameBuffers(ShmemBuffer& aDestShmem,
const webrtc::VideoFrame& aVideoFrame);
} /* namespace mozilla */