Skip to content

[NONBE] Introduce finite precision comparison in MASA surround coherence at high bitrates

vasilacherequested to merge
1048-comparison-threshold-definitionin-read_coherence_hr-to-align-with-basop into main
  • Related issues:
  • Requested reviewers:

Reason why this change is needed

  • Starting from a comparison with 0 in BASOP, for which it was hard to reach a sufficient precision, the comparison with 0 is transformed into comparison with a threshold to ensure same precision is used in both float and fixed point versions. The function involved is read_surround_coherence_hr() in MASA for 384kbps and 512kbps.

Description of the change

  • the value to be compared with zero is given a finite precision.

Affected operating points

  • Produced bitstream is non-BE and non-BC. Old decoder cannot decode the produced bitstream correctly.
  • The affected modes are MASA 384kbps and 512kbps and OMASA 384k and 512kbps

Related to #1048 (closed)

Merge request reports