1、视频合并 第一步将mp4文件转成ts ffmpeg -i /storage/emulated/0/Movies/output1.mp4 -vcodec copy -acodec copy -vbsf h264_mp4toannexb /storage/emulated/0/Movies/output1.ts 第二步合并 ffmpeg -y -f concat -safe 0 -i /storage/emulated/0/Movies/list.txt -c copy /storage/emulated/0/Movies/Cam01.mp4 list.text内容如下： file '/storage/emulated/0/Movies/output1.mp4' file '/storage/emulated/0/Movies/output2.mp4' 2、视频编辑 比如从第5秒的地方开始，往后截取10秒钟 ffmpeg -ss 5 -t 10 -i /storage/emulated/0/Movies/output1.mp4 /storage/emulated/0/Movies/output2.mp4 3、视频加背景音乐 ffmpeg -y -i /storage/emulated/0/Movies/Cam01.mp4 -i /storage/emulated/0/Movies/jj01.mp3 -filter_complex [0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=0.5[a0];[1:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=0.5[a1];[a0][a1]amix=inputs=2:duration=first[aout] -map [aout] -ac 2 -c:v copy -map 0:v:0 -preset superfast /storage/emulated/0/Movies/result.mp4 4、视频加速 ffmpeg -i /storage/emulated/0/Movies/result.mp4 -vf setpts=PTS/2 -af atempo=2 /storage/emulated/0/Movies/result01.mp4 5、音频剪辑 ffmpeg -y -i 124.mp3 -vn -acodec copy -ss 00:00:00 -t 00:01:32 output.mp3
我的gradle依赖包：
implementation 'com.github.microshow:RxFFmpeg:2.2.0'
