[Libav-user] help setting "qscale" with API

[Anton Shekhovtsov]

I tried to search in all possible ways

This seems to work, but is it really the way to go?

    ctx->flags |= AV_CODEC_FLAG_QSCALE;
    ctx->global_quality = FF_QP2LAMBDA * qscale;

I`d appreciate a generic advice too, how to translate command line options
to API? Do I look in some document? In source code?
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