EncoderTest

gistfile1.txt

//
//  EncoderTest.swift
//  
//
//  Created by T
//  Copyright © 2018 T. All rights reserved.
//
import VideoToolbox
import AVFoundation

var _Hardware_H264: Bool = false
var _Hardware_HEVC: Bool = false

public func canPerformHardwareH264Compression() -> Bool
{
    // Hardware encode also depends on the image dimensions
    var sessionRef: VTCompressionSession? = nil
    var status = noErr
    #if os(OSX)
    let encoderSpecs = [kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder as String : true]
    status = VTCompressionSessionCreate(nil, 512, 512, CMVideoCodecType(kCMVideoCodecType_H264), encoderSpecs as CFDictionary, nil, nil, nil, nil, &sessionRef)
    #elseif os(iOS)
    status = VTCompressionSessionCreate(nil, 512, 512, CMVideoCodecType(kCMVideoCodecType_H264), nil, nil, nil, nil, nil, &sessionRef)
    #endif
    
    _Hardware_H264 = (status == noErr)
    if let s = sessionRef
    {
        VTCompressionSessionInvalidate(s)
    }
    //}
    return _Hardware_H264
}

public func canPerformHardwareHEVCCompression() -> Bool
{
    // Hardware encode also depends on the image dimensions
    var sessionRef: VTCompressionSession? = nil
    var status = noErr
    #if os(OSX)
    let encoderSpecs = [kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder as String : true]
    status = VTCompressionSessionCreate(nil, 512, 512, CMVideoCodecType(kCMVideoCodecType_HEVC), encoderSpecs as CFDictionary, nil, nil, nil, nil, &sessionRef)
    #elseif os(iOS)
    status = VTCompressionSessionCreate(nil, 512, 512, CMVideoCodecType(kCMVideoCodecType_HEVC), nil, nil, nil, nil, nil, &sessionRef)
    #endif
    
    _Hardware_HEVC = (status == noErr)
    if let s = sessionRef
    {
        VTCompressionSessionInvalidate(s)
    }
    //}
    return _Hardware_HEVC
}

print("Can do hardware H264 encoding: \(canPerformHardwareH264Compression())")
print("Can do hardware HEVC encoding: \(canPerformHardwareHEVCCompression())")