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楼主 |
发表于 2024-6-18 14:38:12
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I got idea.
#这是 https://stackoverflow.com/questi ... -video-using-ffmpeg 上mono的处理方法
# "ffmpeg.exe"
# -i "input.avi"
# -filter_complex "
# [0:a:0]volume=1.0,channelsplit=channel_layout=stereo[a1][a2];
# [0:a:1]volume=0.6,channelsplit=channel_layout=mono[a3];
# [a1][a2][a3]amerge=inputs=3,pan=stereo|c0<c0+c2|c1<c1+c2[out]
# "
# -map 0:v -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
# -map "[out]"
# -c:v libx264 -preset slow -crf 26
# -c:a aac -strict experimental -ab 128000 -ac 2 -ar 48000
# "output.mp4" |
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