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README
Apache-2.0

FFmpegCommand

前景提要

在我们的开发中,经常会用到音视频相关内容,一般我们都会选择FFmpeg,但是其交叉编译对于我们来说是一件很麻烦的事情.所以这里方便日后使用就编写了这个FFmpegCommandFFmpegCommand是由FFmpeg核心库,并且集成了lamelibx264fdk-aac主流音视频处理程序构成的Android程序

注意:当前库只适用于Android

主要功能

Download License FFmpeg X264 mp3lame fdk-aac

  • 支持所有FFmpeg命令
  • 支持视频格式转换 mp4->flv
  • 支持音频编解码 mp3->pcm pcm->mp3 pcm->aac
  • 支持视频编解码 mp4->yuv yuv->h264
  • 支持音视频的剪切、拼接
  • 支持视频转图片 mp4->png mp4->gif
  • 支持音频声音大小控制以及混音(比如朗读的声音加上背景音乐)
  • 支持部分滤镜 音频淡入、淡出效果、视频亮度和对比度以及添加水印
  • 支持获取媒体文件信息
执行FFmpeg 获取媒体信息
图-1:命令行展示 图-2:命令行执行

引入

下面两种引入只选择一种即可,并根据最新版本替换下面的latestVersion,当前最新版本 Download

// 全部编解码-体积较大
implementation 'com.coder.command:ffmpeg:${latestVersion}'
// 部分常用编解码-体积较小,比上面引入减少大约6M
implementation 'com.coder.command:ffmpeg-mini:${latestVersion}'

如果没有特别的编解码需求,强烈推荐建议使用ffmpeg-mini

使用

下面只展示部分使用,其他可以参考 【WIKI】

FFmpegCommand方法

方法 功能
FFmpegCommand->setDebug(boolean debug) 是否Dubug模式,可打印日志,默认true
FFmpegCommand->runSync(final String[] cmd) 同步执行ffmpeg命令,外部需添加延时线程
FFmpegCommand->runSync(final String[] cmd, OnFFmpegCommandListener listener) 同步执行ffmpeg命令,并回调 完成,取消,进度
FFmpegCommand->runAsync(final String[] cmd, IFFmpegCallBack callBack) 异步执行,外部无需添加延时线程,并回调 开始,完成,取消,进度
FFmpegCommand->getInfoSync(String path,@Attribute int type) 获取媒体信息,type值必须为@Attribute中注解参数
FFmpegCommand->FFmpegCommand.exit() 退出当前ffmpeg执行

使用runAsync

runAsync调用FFmpeg为异步方式,不需要单独开启子线程。强烈建议使用此方法进行音视频处理!!!
直接调用FFmpegCommand.runAsync(String[] cmd, IFFmpegCallBack callback)方法,其中第一个参数由FFmpegUtils工具类提供,也可以自己添加


final long startTime = System.currentTimeMillis();

FFmpegCommand.runAsync(FFmpegUtils.cutAudio(input, "00:00:30", "00:00:40", output),
    new CommonCallBack() {
         @Override
         public void onComplete() {
         Log.d("FFmpegTest", "run: 耗时:" + (System.currentTimeMillis() - startTime));

         @Override
         public void onCancel() {
             Log.d("FFmpegTest", "Cancel");
         }

         @Override
         public void onProgress(int progress) {
             Log.d("FFmpegTest",progress+"");
         }
    }
});

自定义FFmpeg命令

这里只是演示了音频剪切,很多如上述功能请自行查阅FFmpegUtils 如果其中不满足需求,可添加自己的FFmpeg命令.例如:

String cmd = "ffmpeg -y -i %s -vn -acodec copy -ss %s -t %s %s";
String result = String.format(cmd, input, "00:00:30", "00:00:40", output);

FFmpegCommand.runAsync(result.split(" "), new CommonCallBack() {
     @Override
     public void onComplete() {
         Log.d("FFmpegTest", "run: 耗时:" + (System.currentTimeMillis() - startTime));
     }

     @Override
     public void onCancel() {
         Log.d("FFmpegTest", "Cancel");
     }

     @Override
     public void onProgress(int progress) {
         Log.d("FFmpegTest",progress+"");
     }
})

取消执行

执行下面方法后将会回调 CommonCallBack->onCancel()OnFFmpegCommandListener->onCancel() 方法

FFmpegCommand.exit();

【其他方法】

【功能详解】

【常见问题】

【版本更新】

参考

兼容性

兼容Android minSdkVersion >=14(version>=1.1.4,此前的版本只兼容minSdkVersion >=21)

图-7 Demo下载 图-8 Demo下载 图-9 Demo下载

自定义编码器

因为引入了LAME,我们其实可以使用它自定义音频编码器,将其编译成so文件提供使用,具体参考【WIKI-自定义MP3编码器】

体验交流

扫码下载|点击下载 交流 微信赞赏
图-4 Demo下载 图-4 Demo下载 图-5 赞赏

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License

Copyright 2019 AnJoiner

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

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简介

FFmpegCommand适用于Android的FFmpeg命令库,实现了对音视频相关的处理,能够快速的处理音视频,大概功能包括:音视频剪切,音视频转码,音视频解码原始数据,音视频编码,视频转图片或gif,视频添加水印,多画面拼接,音频混音,视频亮度和对比度,音频淡入和淡出效果等 展开 收起
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