MC Live Encoder 4.3 Release Notes

[Mikhail Mikhaylov]

Major New features and improvements in MainConcept Live Encoder V4.3:

• Added support for the #EXT-X-OATCLS-SCTE35 tag containing base64-encoded raw bytes in the SCTE-35 payload and #EXT-X-DATARANGE ad marker types in HLS output. These types of ad insertion work with a wide range of ad servers like Google Ad Manager and various CDNs.
  
• MP4 archive and DASH outputs now allow dual track carriage LCEVC.
  
• HLS TS segments can now be uploaded to AWS Media Packager v2.
  

Known Issues in MainConcept Live Encoder V4.3:

• [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 live encoding 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.