Independent Developer Kit

[nmam]

In previous (ndk based) mkssquashfs_roku we had support for gzip, zstd and brotli compressors. With the latest IDK brotli option is missing. Also 4800x devices detect ndk generated brotli bin file as corrupt.. on all of the other devices (atleast which we have) the same brotli bin works fine. So I wanted to understand: out of gzip, zstd and brotli which compressor is supported on all roku devices ? We have been using gzip for several years in production. Recently checked brotli and it saved us over 3 MB in bin file size. zstd is also good and it reduced around 1.5 MB and we can live with that for now but now since brotli failed on 4800x I just wanted to understand what exactly is supported and on which device via both NDK and IDK.. Would replacing gzip by zstd in production be a safe choice ? please see below the available opetions in ndk vs idk mkssquashfs

[Paulina_Support]

Hi @nmam,

Roku stopped supporting Brotli, and the best option would be to use zstd from now on. 

[nmam]

@Paulina_Support thanks for the clarification. How about using compression level 22 with zstd ? With this we are seeing an additional 100 KB size reduction over and above the 1.5 MB reduction (which we get on using zstd with default level 15 compression). Should we go with the default compression level (15) or level 22 should also be fine ? Please advise, thank you.