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Intel's Open-Source H.265/HEVC Encoder Sees First Release Of 2020
Intel SVT-HEVC 1.5 fixes "all memory leaks" following a refactoring of their allocation/deallocation code that also leads to the ability for FFmpeg to run multi-instance encoding in parallel. SVT-HEVC 1.5 also has a number of optimizations, fixes for a random hang issue with few threads (something we've seen as well with SVT-HEVC in our own benchmarks), and a number of other fixes.
The SVT-HEVC GStreamer plug-in was also upstreamed earlier this year into GStreamer's gst-plugins-bad, leading to the local copy of the plug-in set to be removed soon from the source tree.
More details on SVT-HEVC 1.5 via GitHub.