Regenerate test_000070, test_000210 reference files.

[jwcullen]

• Encoder bug-fixes improve this file's PSNR test performance.
• Previously demixing matrices were applied incorrectly and led to bad scores in some channels.
• Based on AOMediaCodec/iamf-tools@cdc930082

test_000070

When rendering from 7.1.4 to 7.1.2, the final two channels in reference file incorrectly were dropping channels instead of applying §3.8.2 gamma value.

Using the reference software, I ran this test before this PR:

code/test/tools/iamfdec/iamfdec -i0 -mp 42 -s10 -o3 tests/test_000070_rendered_id_42_sub_mix_0_layout_1_generated.wav -d 16 -r 48000 -disable_limiter tests/test_000070.iamf
python3 tests/psnr_calc.py --ref test_000070_rendered_id_42_sub_mix_0_layout_1.wav --target test_000070_rendered_id_42_sub_mix_0_layout_1_generated.wav --dir .

The original results had bad scores in the last two channels:

ch#0 PSNR: inf
[Abridged channels 1 through 7 (inf)]                                                                                                                                                                                       
ch#8 PSNR: 34.362047543353725 dB                                                                                                                                                                                       
ch#9 PSNR: 36.46787671489911 dB                                                                                                                                                                                        
average PSNR: 35.414962129126422      

And are significantly improved after:

ch#0 PSNR: inf
[Abridged channels 1 through 7 (inf)]                                                                                                                                                                                      
ch#8 PSNR: 99.48411673970611 dB
ch#9 PSNR: 99.36477363500742 dB
average PSNR: 99.424445187356767

test_000210

When rendering from 7.1.4 to 3.1.2, incorrect demixng matrices were applied in the reference file.

Results overall improve in several channels from:

ch#0 PSNR: 80.01661034738198 dB
ch#1 PSNR: 75.81802931912671 dB
ch#2 PSNR: inf
ch#3 PSNR: inf
ch#4 PSNR: 79.29201929325461 dB
ch#5 PSNR: 81.88812123962035 dB
average PSNR: 79.253695049845916

To:

ch#0 PSNR: 99.33922319776885 dB
ch#1 PSNR: 99.34121392154616 dB
ch#2 PSNR: inf
ch#3 PSNR: inf
ch#4 PSNR: 99.3462128493322 dB
ch#5 PSNR: 99.3433504401923 dB
average PSNR: 99.342500102209868

[kavithaig]

Hello,
Will these two reference files be merged to the v1.0.1 repository also? I see the Source.zip for that tag has not been updated since last year Aug 26 2024 (https://github.com/AOMediaCodec/libiamf/releases/tag/v1.0.1). We are using v1.0.1 because we were told that was the latest for the base profile.

Basically I would like to make sure I pick up all the latest related to base profile based code update. I want to know how you will add new updates. Let me know if there is a mailing list I could be part of to know if there are any updates/fixes.

Thanks,
kavitha