PAN enlipan

词汇表

A

英文	译法 1	译法 2	译法 3
a block of pointers	一块指针	一组指针
abbreviation	缩略语

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

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"

Video stabilization using VidStab and FFMPEG

Examples here use the default settings, see the VidStab readme on GitHub for more advanced instructions.

Here's an example video I made

Install ffmpeg with the vidstab plugin from homebrew

brew install ffmpeg --with-libvidstab

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

	import java.io.IOException;
	import okhttp3.HttpUrl;
	import okhttp3.Interceptor;
	import okhttp3.OkHttpClient;
	import okhttp3.Request;

	/** An interceptor that allows runtime changes to the URL hostname. */
	public final class HostSelectionInterceptor implements Interceptor {
	private volatile String host;

	ADB=${ANDROID_HOME}/platform-tools/adb
	HPROF_CONV=${ANDROID_HOME}/platform-tools/hprof-conv

	# customized functions
	# dump droid heap
	function droid_hd() {
	PACKAGE_NAME=$1

	TIME=$(date +"%Y%m%d_%H%M%S")
	FILE_NAME="${PACKAGE_NAME}-${TIME}-heap.hprof"

	// android:label="${appName}" is written in AndroidManifest.xml
	android {
	defaultConfig {
	manifestPlaceholders = [appName: '@string/app_name']
	}
	// Filter variants for performance
	variantFilter { filter ->
	def variantName = filter.getFlavors().first().name + '-' + filter.buildType.name
	if (['dev-release', 'product-debug', 'product-qa'].contains(variantName)) {
	filter.setIgnore(true)

	# Built application files
	/*/build/

	# Crashlytics configuations
	com_crashlytics_export_strings.xml

	# Local configuration file (sdk path, etc)
	local.properties

	# Gradle generated files

	buildscript {
	repositories {
	mavenCentral()
	}
	dependencies {
	classpath 'com.android.tools.build:gradle:0.4'
	}
	}
	apply plugin: 'android'