FreeCalypso > hg > gsm-codec-lib
view doc/EFR-testing @ 143:195911f2211c
document PCM format conversion utilities
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 14 Dec 2022 07:04:59 +0000 |
parents | 170e03b20337 |
children | 1e8569000049 |
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When it comes to codec libraries, testing for correctness is essential, and EFR is no exception. There is a set of EFR encoder and decoder test sequences published by ETSI in ts_100725v050200p0.zip (GSM 06.54), and our suite of tools includes gsmefr-etsi-enc and gsmefr-etsi-dec test programs that operate on the representation formats used by these test sequences. Because these test programs are based on libgsmefr EFR_encode_frame() and EFR_decode_frame() functions, seeing gsmefr-etsi-enc produce output that matches official ETSI *.cod files proves that libgsmefr encoder is correct, and seeing gsmefr-etsi-dec produce output that matches official ETSI *.out files proves that libgsmefr decoder is correct. For debugging, we also have gsmefr-cod-parse and gsmefr-dec-parse utilities that parse ETSI *.cod and *.dec file formats and dump their content in human-readable form similar to gsmrec-dump.