Astor
V2EX  ›  FFmpeg

FFmpeg 转码最开头几帧总是模糊怎么办

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  •   Astor · Apr 9, 2020 · 3438 views
    This topic created in 2225 days ago, the information mentioned may be changed or developed.

    用 2pass 对视频进行压制,别的内容都还好,就是视频开始那几帧总是模糊

    各位有过类似的经历吗?

    ffmpeg -hwaccel qsv -i [input] -c:a copy -c:v hevc_qsv -preset slow -b:v 1M -maxrate 4M -bufsize 2M -pass 1 -f mp4 [output]

    3 replies    2020-10-02 11:46:54 +08:00
    everhythm
        1
    everhythm  
       Apr 9, 2020
    minrate 也指定下试试?
    newmlp
        2
    newmlp  
       Aug 14, 2020
    去除码率相关参数试试
    ungrown
        3
    ungrown  
       Oct 2, 2020
    试试非硬件加速的编解码器看还会不会这样
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