mencoder视频旋转

mencoder -oac mp3lame -lameopts aq=7:cbr:br=128 -srate 44100 -vf scale=width:height,harddup -ovc x264 -x264encopts bitrate=320:pass=2 InputFile -o OutputFile



//视频滤镜

... -vf ...,eq=B:C,...harddup ... B=亮度,C=对比度
... -vf ...,rotate=R,...harddup ... R=旋转方式(0,逆时针90度。1,顺时针90度。)
... -vf ...,mirror,...harddup ... 水平翻转
... -vf ...flip,...harddup ... 垂直翻转
.. .-vf ...,crop=W:H:X:Y,...harddup ...
... -vf ...,expand=W:H:::1,...harddup ... 加黑边将画面扩展到W:H
... -vf...-ofps F ... F=帧速率
... -ss H:M:S:MS -endpos H:M:S:MS ... 时间分割(H=小时,M=分钟,S=秒,MS=毫秒)

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