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TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents 1e8569000049
children
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3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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1 When it comes to codec libraries, testing for correctness is essential, and EFR
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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2 is no exception. There is a set of EFR encoder and decoder test sequences
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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3 published by ETSI in ts_100725v050200p0.zip (GSM 06.54), and our suite of tools
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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4 includes gsmefr-etsi-enc and gsmefr-etsi-dec test programs that operate on the
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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5 representation formats used by these test sequences. Because these test
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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6 programs are based on libgsmefr EFR_encode_frame() and EFR_decode_frame()
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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7 functions, seeing gsmefr-etsi-enc produce output that matches official ETSI
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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8 *.cod files proves that libgsmefr encoder is correct, and seeing gsmefr-etsi-dec
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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9 produce output that matches official ETSI *.out files proves that libgsmefr
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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10 decoder is correct.
3fd48946dcb8 doc/EFR-testing article written
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11
3fd48946dcb8 doc/EFR-testing article written
Mychaela Falconia <falcon@freecalypso.org>
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12 For debugging, we also have gsmefr-cod-parse and gsmefr-dec-parse utilities that
3fd48946dcb8 doc/EFR-testing article written
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13 parse ETSI *.cod and *.dec file formats and dump their content in human-readable
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170e03b20337 doc/EFR-testing (gsmefr-{cod,dec}-parse): document similarity to gsmrec-dump
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14 form similar to gsmrec-dump.
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1e8569000049 doc/EFR-testing: document endian issues
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15
1e8569000049 doc/EFR-testing: document endian issues
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16 Please note that all ETSI test sequence file formats are endian-dependent: their
1e8569000049 doc/EFR-testing: document endian issues
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17 original programs read and write 16-bit words in the local machine's native byte
1e8569000049 doc/EFR-testing: document endian issues
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18 order, and whenever you are working with published test sequence files, you have
1e8569000049 doc/EFR-testing: document endian issues
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19 to check to see if they are BE or LE. Our gsmefr-etsi-{enc,dec} and
1e8569000049 doc/EFR-testing: document endian issues
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20 gsmefr-{cod,dec}-parse programs support both byte orders; the default is LE
1e8569000049 doc/EFR-testing: document endian issues
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21 (matching the main parts of ts_100725v050200p0.zip), or you can select BE with
1e8569000049 doc/EFR-testing: document endian issues
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22 -b option.