FreeCalypso > hg > gsm-codec-lib
changeset 158:1e8569000049
doc/EFR-testing: document endian issues
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 15 Dec 2022 02:18:51 +0000 |
| parents | 04936af99fc8 |
| children | aa4cdab30dc8 |
| files | doc/EFR-testing |
| diffstat | 1 files changed, 8 insertions(+), 0 deletions(-) [+] |
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--- a/doc/EFR-testing Thu Dec 15 02:08:55 2022 +0000 +++ b/doc/EFR-testing Thu Dec 15 02:18:51 2022 +0000 @@ -12,3 +12,11 @@ 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. + +Please note that all ETSI test sequence file formats are endian-dependent: their +original programs read and write 16-bit words in the local machine's native byte +order, and whenever you are working with published test sequence files, you have +to check to see if they are BE or LE. Our gsmefr-etsi-{enc,dec} and +gsmefr-{cod,dec}-parse programs support both byte orders; the default is LE +(matching the main parts of ts_100725v050200p0.zip), or you can select BE with +-b option.