Overview
This is a major performance optimization update. In the X Acceleration Codec v1.4.0 - 1.4.3, there is a system RAM bandwidth overhead problem. which is caused by the FFmpeg hwdownload and hwupload filters. it involves the extra frame copies between system RAM and GPU RAM. and when bandwidth is exceed the limits. then all the system will becomes slow. and probably you will see the transcoding speed of all other channels becomes slow. and v1.4.4 we optimized the insertion of hwdownload and hwupload filters, the extra frames copies will only happens when overlaying the logo image.
Changelog
version 1.4.4:
- optimize the RAM bandwidth overhead and fix stability problem.
Released by X Acceleration Codec Developer Yang.Z at Tue Jul 31 14:29:03 UTC 2018
