MC Live Encoder 4.1 Release Notes

***Olga Bulava*** · 2025-08-12, 10:32 AM

New Features and Major Improvements in MainConcept Live Encoder V4.1

NDI support for live ingest.
Live periods for ads are now supported in DASH output.
The information shown on the monitor page is now available via the REST API.
Specify a custom name for HLS media playlists using placeholder variables.
HLS output to TS containers can now combine or separate the A/V streams.
Added support for HEVC/H.265 streaming in RTMP protocol.
Old files are removed from WebDAV servers based on the Keep Duration time.
AC-3 pass-through for DASH output.
Force IDR for AVC/H.264 NVENC to correctly split DASH and HLS segments according to SCTE-35 markers.
Improved logic for adding new sources and jobs.
The number of parallel pictures for VVC/H.266+LCEVC is now adjusted based on the CPU threads number. This helps to increase performance, especially for 4K encoding.

Known Issues in MainConcept Live Encoder V4.1

[NDE-151] Start/stop encoding causes the encoder to behave unpredictably when no disk space is available and, as a result, may not produce any output signal.
[NDE-261/NDE-280] When using a two-second segment size for HLS creation with either AVC/H.264 or HEVC/H.265 hardware or software encoding, the peak bitrate sometimes exceeds the bandwidth specified in the HLS master playlist by more than 20%. There is no problem when using 4 or 6 second segment sizes.
[NDE-409] Occasional frame drops when doing HEVC 8K 60p 10-bit liveencoding on Linux.
[NDE-462] It is currently not possible to insert logos with a bit depth of 8-bit or less.
[B-83199] Closed Captions information is not written into MPEG-DASH manifest and HLS playlist files. This can be corrected by a separate packaging tool.
[NDE-524] There is a memory leak after stopping streaming of LCEVC streams on Linux. This memory is reused if streaming is restarted.