Posted 8 October 2018 - 09:44
Difficult to say without knowing what is exactly in the file. MP4 files should contain MPEG4 and can be played directly by the SoC, MKV's can contain all sorts, and are played by gstreamer who converts them so they can be fed to the SoC.
What is your understanding of "previous version"? 4? 6.1? In general both gstreamer and the SoC drivers are different in each release.
Currently in use: VU+ Duo 4K (2xFBC S2), VU+ Solo 4K (1xFBC S2), uClan Usytm 4K Ultimate (S2+T2), Octagon SF8008 (S2+T2), Zgemma H9.2H (S2+T2)
Due to my bad health, I will not be very active at times and may be slow to respond. I will not read the forum or PM on a regular basis.
Many answers to your question can be found in our new and improved wiki.