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CHANGES: document rm of gsmfr-hand-test and gsmfr-max-out
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 May 2024 19:48:56 +0000
parents 287063b9cf43
children 2d46abdfbe91
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1 Changes from gsm-codec-lib-r2 to gsm-codec-lib-r3:
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2
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3 * Libgsmfrp has been replaced with libgsmfr2, a major version change per SemVer.
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5 * The former dependency on historical libgsm has been eliminated; the
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6 functionality of libgsm (GSM 06.10 encoder and decoder implementation) has
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7 been absorbed into libgsmfr2.
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8
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9 * Libgsmefr version 1.0.1 exhibits approximately 2x performance improvement
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10 over the original version.
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12 * New library added: libtwamr for 3GPP AMR-NB codec, serving as a replacement
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13 for libopencore-amrnb in Themyscira GSM codec exploration workflows.
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15 * New command line utilities: amrefr-* and twamr-* related to libtwamr,
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16 gsmfr-* updates for libgsmfr2.
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18 * gsmfr-* utilities set: gsmfr-hand-test and gsmfr-max-out hack programs have
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19 been dropped. These hack programs were never properly documented and were
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20 written only as part of a debug chase, in pursuit of a bug that ultimately
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21 turned out to be in our then-hacky patch to osmo-bts-sysmo.
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23 * The configuration and build process has been revamped: the full suite of
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24 libraries and utilities can now be installed in any desired file system
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25 location without contortions.
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27 Changes from gsm-codec-lib-r1 to gsm-codec-lib-r2:
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29 * Libgsmfrp evolved from version 1.0.0 to version 1.0.2; please see
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30 doc/FR1-Rx-DTX for a detailing listing of libgsmfrp changes.
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32 * Some new utilities have been developed for studying AMR: see
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33 doc/AMR-study-utils for more information.
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35 * The subject of conversions between 16-bit 2's complement linear PCM and 8-bit
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36 A-law and mu-law PCM formats (G.711) has been thoroughly studied, the findings
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37 have been documented in doc/PCM8-conversions, and some new command line
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38 utilities have been added, described in the same article.
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39
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40 * Many new table generators have been added to the dev subdirectory; some of
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41 them may be useful to other software developers.
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43 * pcap utilities have been split off to a separate rtp-debug-utils repository;
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44 this split was made so that those utilities can be developed freely while the
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45 gsm-codec-lib repository remains under strict release process control.