FreeCalypso > hg > gsm-codec-lib
annotate CHANGES @ 474:285381a001fc
new program gsmfr-dlcap-sync
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 15 May 2024 06:20:59 +0000 |
parents | 2d46abdfbe91 |
children | 20d44cfc219c |
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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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4 |
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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 1.1.0 exhibits approximately 2x performance improvement |
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10 over the original version, and also exhibits a small addition to the public |
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11 API: the RTP-encoded form of the standard EFR DHF is now provided as a const |
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12 datum. |
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13 |
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14 * New library added: libtwamr for 3GPP AMR-NB codec, serving as a replacement |
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15 for libopencore-amrnb in Themyscira GSM codec exploration workflows. |
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16 |
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17 * New command line utilities: amrefr-* and twamr-* related to libtwamr, |
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18 gsmfr-* updates for libgsmfr2. |
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19 |
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20 * gsmfr-* utilities set: gsmfr-hand-test and gsmfr-max-out hack programs have |
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21 been dropped. These hack programs were never properly documented and were |
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22 written only as part of a debug chase, in pursuit of a bug that ultimately |
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23 turned out to be in our then-hacky patch to osmo-bts-sysmo. |
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24 |
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25 * The configuration and build process has been revamped: the full suite of |
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26 libraries and utilities can now be installed in any desired file system |
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27 location without contortions. |
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28 |
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29 Changes from gsm-codec-lib-r1 to gsm-codec-lib-r2: |
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30 |
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31 * Libgsmfrp evolved from version 1.0.0 to version 1.0.2; please see |
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32 doc/FR1-Rx-DTX for a detailing listing of libgsmfrp changes. |
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33 |
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34 * Some new utilities have been developed for studying AMR: see |
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35 doc/AMR-study-utils for more information. |
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36 |
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37 * The subject of conversions between 16-bit 2's complement linear PCM and 8-bit |
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38 A-law and mu-law PCM formats (G.711) has been thoroughly studied, the findings |
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39 have been documented in doc/PCM8-conversions, and some new command line |
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40 utilities have been added, described in the same article. |
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41 |
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42 * Many new table generators have been added to the dev subdirectory; some of |
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43 them may be useful to other software developers. |
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44 |
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45 * pcap utilities have been split off to a separate rtp-debug-utils repository; |
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46 this split was made so that those utilities can be developed freely while the |
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47 gsm-codec-lib repository remains under strict release process control. |