bytedeco/javacv

Using FFmpegFrameFilter with zscale and tonemapping

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#1,389 创建于 2020年3月21日

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 (11 评论) (0 反应) (0 负责人)Java (1,583 fork)batch import
enhancementhelp wanted

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描述

When I attempt to create the following filter:

"zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=mobius:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p,scale=1920:1080"

the filter throws an exception when attempting to start:

org.bytedeco.javacv.FrameFilter$Exception: avfilter_graph_parse_ptr() error -22

The filter in question works fine from ffmpeg command line, but I'm using this filter with frame grabber. Any suggestions?

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