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1 g711.rme - Readme for the G.711 module
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2
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3
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4 U G S T
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5
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6 Read me file for G711 module
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7 (01.Feb.2000)
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8
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9 =============================================================
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10 COPYRIGHT NOTE: This source code, and all of its derivations,
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11 is subject to the "ITU-T General Public License". Please have
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12 it read in the distribution disk, or in the ITU-T
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13 Recommendation G.191 on "SOFTWARE TOOLS FOR SPEECH AND AUDIO
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14 CODING STANDARDS".
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15 =============================================================
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16
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17
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18 The UGST G711 module, version 3.01 (31.Jan.2000) needs the following
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19 files:
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20
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21 g711.c .......... G711 module itself; needs the prototypes in G711.H.
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22 g711demo.c ...... Demosntration program for the G711 module; needs the files
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23 g711.c and ugstdemo.h in the current directory.
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24 ugstdemo.h ...... prototypes and definitions needed by UGST demo programs.
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25 g711.h .......... prototypes and definitions needed by the G711 module.
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26
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27 As an auxililiary program, there is:
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28 shiftbit.c ...... program to shift (with sign extension) to left or right the
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29 input file, saving in the output file. You may need this if
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30 you speech data file has less than 16 bit resolution and not
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31 left-justified.
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32
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33 Makefiles:
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34 ~~~~~~~~~~
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35 Makefiles have been provided for automatic build-up of the executable program
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36 and to process the test files:
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37 makefile.unx .... makefile for compiling on an Unix environment
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38 makefile.tcc .... makefile for compiling with MSDOS Borland [bt]cc
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39 makefile.cl ..... makefile for compiling with MS Visual C compiler
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40 makefile.djc .... makefile for compiling with DJGPP MSDOS port of gcc
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41 make-vms.com .... DCL for compiling in the VAX/VMS environment
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42
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43 Testing:
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44 ~~~~~~~~
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45 The provided makefiles can run a portability test on the demo program. They
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46 need the archive tst-g711.zip ([pk]zip compatible archive) and [pk]unzip to
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47 extract the proper source and reference processed files. The contents of this
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48 archive file is:
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49 sweep.src ....... THE reference file
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50 sweep-r.a ....... reference file: sweep.src encoded by A-law (A lilo)
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51 sweep-r.a-a ..... reference file: sweep-r.a decoded by A-law (A loli)
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52 sweep-r.rea ..... reference file: sweep.src enc'd *and* decoded by A-law (lili)
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53 sweep-r.u ....... reference file: sweep.src enc'd by u-law (u lilo)
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54 sweep-r.u-u ..... reference file: sweep-r.u dec'd by u-law (u loli)
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55 sweep-r.reu ..... reference file: sweep.src enc'd *and* decoded by u-law (lili)
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56
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57 NOTE! These files are in the big-endian (high-byte first) format. Therefore,
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58 before using under MSDOS or VAX/VMS, the files need to be byte-swapped.
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59 See unsupported program sb in the ../unsup directory.
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60 The CRC-32 (unsup utility crc) for each of the test files are
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61 given below:
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62
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63 File name CRC32-BE CRC32-LE Size
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64 ------------------------------------------
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65 sweep-r.a E714C343 74719FE4 131072
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66 sweep-r.a-a 1595D5BA ABCEAA69 131072
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67 sweep-r.rea 1595D5BA ABCEAA69 131072
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68 sweep-r.reu D6812645 63641C01 131072
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69 sweep-r.u E7513B35 CD170E15 131072
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70 sweep-r.u-u D6812645 63641C01 131072
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71 sweep.src 67B11DDE C8BA7682 131072
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72 ------------------------------------------
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73 Notes:
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74 - CRC32-BE: CRC-32 for the big endian format (i.e., most
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75 non-Intel Unix systems)
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76 - CRC32-LE: CRC-32 for the little endian format (Intel CPUs, etc)
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77 - Size: file size, in bytes
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78 --
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79 <simao@ctd.comsat.com> - 31.Jan.2000 |
