1527: Tests for incorrect bitrate idx in CMR Fix

Ripinder Singhrequested to merge
1527_fix_bitrate_idx_in_CMR_tests into main

Reason why this change is needed

Using RTP, It was discovered that the bitrate remote requests via CMR in the E-bytes is mapped to the previous bitrate, e.g. if 256K is selected, 192K is signalled in CMR.

Description of the change

  • Add support for passing a requests file from command line to set CMR and other requests at frame boundary
  • Add pytest for iterating through valid bandwidth/codec/bitrate combinations and comparing bitstream with expected values

Affected operating points

  • Adds new tests for request for codec change, bitrate change and bandwidth change

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