niugm

使用ffmpeg合并MP4文件

ffmpeg -i "Apache Sqoop Tutorial Part 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg -i "Apache Sqoop Tutorial Part 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
ffmpeg -i "Apache Sqoop Tutorial Part 3.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate3.ts
ffmpeg -i "Apache Sqoop Tutorial Part 4.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate4.ts
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts|intermediate3.ts|intermediate4.ts" -c copy -bsf:a aac_adtstoasc "Apache Sqoop Tutorial.mp4"

niugm

    private let audioOutput: AVCaptureAudioPreviewOutput = {
        let audioOutput = AVCaptureAudioPreviewOutput()
        audioOutput.volume = UserDefaults.standard.volume

        struct Device {
            var name: String?
            var uid: String?
        }
        var devicesProperty = AudioObjectPropertyAddress(mSelector: kAudioHardwarePropertyDevices, mScope: kAudioDevicePropertyScopeOutput, mElement: kAudioObjectPropertyElementWildcard)
        var devicesSize: UInt32 = 0

niugm

import Cocoa
import CoreGraphics
import Vision

struct TargetWindow {
    let id: CGWindowID
    let bounds: CGRect

    init?(appName: String, windowTitle: String) {
        guard let windows = CGWindowListCopyWindowInfo(.optionAll, kCGNullWindowID) as? [[String: Any]] else { return nil }

niugm

cd ~
sudo yum update
sudo yum install java-1.7.0-openjdk.i686 -y

wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.9.tar.gz -O elasticsearch.tar.gz

tar -xf elasticsearch.tar.gz
rm elasticsearch.tar.gz
mv elasticsearch-* elasticsearch
sudo mv elasticsearch /usr/local/share

niugm

upstream backend {
    server 127.0.0.1:3000;
}

server {
    listen 80;

    access_log /var/log/nginx/yoursite.access.log;
    error_log /var/log/nginx/yoursite.error.log;