We want transcode a programe to 4 programes with different ICQQuality use LA_ICQ rate control algorithm. But we found LA_EXT and LA_ICQ are mutual exclusion. That means we can't share LA_EXT benefits for 1:N trancode.
We think LA_EXT should be a structure. It should be used with other rate control algorithms.
LA_EXT and LA_ICQ are two different modes and cannot be used together. With LA_EXT mode, you can probability choose different look ahead depth or downsampling factor to achieve different quality.