Android端可用的执行ffmpeg命令的库.zip

[]() []() []() <link href="http://kevinburke.bitbucket.org/markdowncss/markdown.css" rel="stylesheet"></link> ## 安卓端集成可用的执行ffmpeg命令的库 本代码封装自：https://androidlearnersite.wordpress.com/2017/03/17/ffmpeg-video-editor/ 安卓应用纯java代码编辑你需要的功能，不需要自己写C代码和NDK，只需要关注逻辑实现。 最新版本 ,[3.22_02 点击下载](http://pan.baidu.com/s/1hsvh0jy)。 提取密码：30hi 拓展库下载：[libx264](http://pan.baidu.com/s/1eSImjv0) 提取密码：8u1i ### [英文文档](https://github.com/hiliving/VideoEdit/blob/master/README_EN.md) ### 主要功能： >文件处理 + 1.视频压缩 -s 控制视频分辨率（如160X320） -b 比特率（例如 150K） 这两个参数直接决定压缩质量，分辨率高，比特率增加，都可以提升画质，但是同时也会增加文件体积。 //常规的压缩代码 ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -s 160x120 -r 25 -vcodec mpeg4 -b 150k -ab 48000 -ac 2 -ar 22050 /sdcard/videokit/out.mp4 //使用h264编码，需要拓展库 ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vcodec libx264 -preset ultrafast -crf 24 -acodec aac -ar 44100 -ac 2 -b:a 96k -s 320x240 -aspect 4:3 /sdcard/videokit/out3.mp4 建议使用数组格式的命令，可以避免校验出现的问题。例如： String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/video kit/in.mp4","-strict","experimental","-s", "160x120","-r","25", "-vcodec", "mpeg4", "-b", "150k", "-ab","48000", "-ac", "2", "-ar", "22050", "/sdcard/video kit/out.mp4"}; + 2.音频压缩 String commandStr = "ffmpeg -y -i /sdcard/vk2/in.wav -ar 44100 -ac 2 -ab 64k -f mp3 /sdcard/videokit/out.mp3"; 音频裁剪 String commandStr ={"ffmpeg","-y","-i","/storage/emulated/0/vk2/in.mp3","-strict","experimental","-acodec","copy","-ss","00:00:00","-t","00:00:03.000","/storage/emulated/0/videokit/out.mp3"}; + 3.视频旋转 旋转90度 ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vf transpose=1 -s 160x120 -r 30 -aspect 4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k /sdcard/video_output/out.mp4 + 4.视频画面局部裁剪 ffmpeg -y -i /sdcard/videokit/short.mp4 -strict experimental -vf crop=100:100:0:0 -s 320x240 -r 15 -aspect 3:4 -ab 12288 -vcodec mpeg4 -b 2097152 -sample_fmt s16 /sdcard/videokit/out.mp4 + 5.从视频内提取一帧保存为图片 ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -an -r 1/2 -ss 00:00:00.000 -t 00:00:03 /sdcard/videokit/filename%03d.jpg + 6.从视频中提取音频文件 //示例1 ffmpeg -y -i /sdcard/videokit/in.avi -strict experimental -acodec copy /sdcard/videokit/out.mp3 //示例2 ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vn -ar 44100 -ac 2 -ab 256k -f mp3 /sdcard/videokit/out.mp3 + 7.对视频中的音频重新编码 ffmpeg -y -i /sdcard/in.mp4 -strict experimental -vcodec copy -acodec libmp3lame -ab 64k -ac 2 -b 1200000 -ar 22050 /sdcard/out.mp4 + 8.改变视频的分辨率，4:3 or 16:9 ffmpeg -y -i /sdcard/in.mp4 -strict experimental -vf transpose=3 -s 320x240 -r 15 -aspect 3:4 -ab 12288 -vcodec mpeg4 -b 2097152 -sample_fmt s16 /sdcard/out.mp4 + 9.从视频中剪辑一段时间的视频 ffmpeg -ss 00:00:01.000 -y -i /sdcard/videokit/in.mp4 -strict experimental -t 00:00:02.000 -s 320x240 -r 15 -vcodec mpeg4 -b 2097152 -ab 48000 -ac 2 -b 2097152 -ar 22050 /sdcard/videokit/out.mp4 + 10.音频转码 ffmpeg -y -i /sdcard/videokit/big.wav /sdcard/videokit/small.mp3 + 11.视频添加水印 // test with watermark.png 128x128, add it to /sdcard/videokit/ String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in.mp4","-strict","experimental", "-vf", "movie=/sdcard/videokit/watermark.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s", "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab", "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out.mp4"}; >流以及更多场景处理 + 0.从安卓设备推流到PC设备，并播放。 // APP中使用这条命令 ( 192.168.1.11 是电脑的IP) ffmpeg -i /sdcard/videokit/2.mpg -strict experimental -f mpegts udp://192.168.1.11:8090 // (192.168.1.14 是安卓设备的 IP) ffplay -f mpegts -ast 1 -vst 0 -ar 48000 udp://192.168.1.14:8090 + 1.从相机预览获取原始格式的视频流。 Parameters parameters = camera.getParameters(); imageFormat = parameters.getPreviewFormat(); if (imageFormat == ImageFormat.NV21) { Camera.Size previewSize = parameters.getPreviewSize(); frameWidth = previewSize.width; frameHeight = previewSize.height; Rect rect = new Rect(0, 0, frameWidth, frameHeight); YuvImage img = new YuvImage(data, ImageFormat.NV21, frameWidth, frameHeight, null); try { outStream.write(data); outStream.flush(); } } 执行编码命令 "ffmpeg -f rawvideo -pix_fmt nv21 -s 640x480 -r 15 -i " + Environment.getExternalStorageDirectory().getAbsolutePath().toString() + "/yuv.data rtmp://host/stream.flv" + 2.从一台设备接收另一台设备的视频流，并保持为文件。 【记得添加网络权限】 //第一台设备： ffmpeg -i /sdcard/one3.mp4 -f mpegts udp://192.168.0.107:8090 // //第二台设备： String[] complexCommand = {"ffmpeg","-y" ,"-i", "udp://192.168.0.108:8090","-strict","experimental","-crf", "30","-preset", "ultrafast", "-acodec", "aac", "-ar", "44100", "-ac", "2", "-b:a", "96k", "-vcodec", "libx264", "-r", "25", "-b:v", "500k", "-f", "flv", "/sdcard/videokit/t.flv"}; + 3.H264编码（需要拓展库） //例子1 ffmpeg -y -i /sdcard/Video/1.MTS -strict experimental -vcodec libx264 -preset ultrafast -crf 24 /sdcard/videokit/out.mp4 //例子2 ffmpeg -y -i /sdcard/videokit/m.mkv -strict experimental -vcodec libx264 -preset ultrafast -crf 24 -sn /sdcard/videokit/m2.mkv + 4.添加字幕 //例子1 ffmpeg -y -i /sdcard/videokit/m2.mkv -i /sdcard/videokit/in.srt -strict experimental -vcodec libx264 -preset ultrafast -crf 24 -scodec copy /sdcard/videokit/mo.mkv //例子2 ffmpeg -y -i /sdcard/videokit/m2.mkv -i /sdcard/videokit/in.srt -strict experimental -scodec copy /sdcard/videokit/outm3.mkv + 5.将一个mp3音频文件转为m4a格式 ffmpeg -i /sdcard/videokit/in.mp3 /sdcard/videokit/out.m4a + 6.将一个视频和一个音频文件渲染为一个H.264编码的视频（需要额外的编码库） ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vcodec libx264 -crf 24 -acodec aac /sdcard/videokit/out.mkv + 7.添加复古滤镜 commandStr = "ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vf curves=vintage -s 640x480 -r 30 -aspect 4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k -vcodec mpeg4 /sdcard/videokit/curve.mp4"; + 8.黑白滤镜 commandStr = "ffmpeg -y -i /sdcard/videokit/in.mp4 -strict experimental -vf hue=s=0 -vcodec mpeg4 -b 2097152 -s 320x240 -r 30 /sdcard/videokit/out.mp4"; + 9.色彩通道滤镜，类似PS中�