search

ittiam-systems / libmpegh

MPEG-H 3D Audio Low Complexity Profile Decoder. Encoder: https://github.com/ittiam-systems/libmpeghe
http://www.ittiam.com/
BSD 3-Clause Clear License
86 stars 19 forks source link

Fraunhofer test files fail with "invalid channel configuration" #74

Closed MarkerB closed 4 months ago

MarkerB commented 4 months ago

I'm trying to verify the channel layout using the Fraunhofer "test signal" files, and the ia_mpeghd_testbench conversion fails with the error "invalid channel configuration". It fails no matter what channel layout I use on the command line. I've tried a "cicp" of 20, 19, and 7.

The Fraunhofer test files are located at https://mpegh.com/test-signals/, and I've specifically tried "Channel Identification: 7.1 + 4 Speakers".

I've been able to convert other mp4 wrapped MPEG-H files without incident, but I don't quite trust the channel mappings I'm getting. All my input files have the order "L R C LFE Lb Rb Lss Rss Tfl Tfr Tbl Tbr", but it would be great to hear a test for sure.

SakethSathuvalli commented 4 months ago

Hi @MarkerB,

Thanks for bringing this to our notice!

A quick fix is available on the branch - https://github.com/ittiam-systems/libmpegh/tree/74-fix-mp4-parse-issue

It will take us sometime (~1-2 weeks) to bring it on to main branch post testing and validation.

Thanks!

MarkerB commented 4 months ago

A quick fix is available on the branch - https://github.com/ittiam-systems/libmpegh/tree/74-fix-mp4-parse-issue

Wonderful! I had been using the ready-made Windows executable, so I had to install Visual Studio Community... but now I can convert those test files from Fraunhofer. Thank you so much!