With powerful ffmpeg, we can draw waveform for an audio or video resource.
Default waveform
ffmpeg -i stereo_input.foo -filter_complex showwavespic -frames:v 1 output.png
1080: 3 items found.
With powerful ffmpeg, we can draw waveform for an audio or video resource.
ffmpeg -i stereo_input.foo -filter_complex showwavespic -frames:v 1 output.png
首先说明下,本文是以树莓派作为客户端连接ss, 再用privoxy自动代理实现科学研究。
1 安装ss apt-get install shadowsocks-libev
2 禁用这个服务端服务 systemctl disable shadowsocks-libev
3 自动开启这个客户端连接服务 systemctl enable shadowsocks-libev-local@config
4 编辑ss的配置文件 vi /etc/shadowsocks-libev/config.json
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