文件列表:

refsoft971120 (0, 2004-10-19)
refsoft971120\vm (0, 2004-10-19)
refsoft971120\vm\CVS (0, 2004-10-19)
refsoft971120\vm\CVS\Entries (586, 1997-11-21)
refsoft971120\vm\CVS\Repository (30, 1997-11-12)
refsoft971120\vm\CVS\Root (27, 1997-11-12)
refsoft971120\vm\include_enc (0, 2004-10-19)
refsoft971120\vm\include_enc\CVS (0, 2004-10-19)
refsoft971120\vm\include_enc\CVS\Entries (49, 1997-11-17)
refsoft971120\vm\include_enc\CVS\Repository (42, 1997-11-12)
refsoft971120\vm\include_enc\CVS\Root (27, 1997-11-12)
refsoft971120\vm\include_enc\libuhd_psy.h (2723, 1997-11-17)
refsoft971120\vm\makefile (14161, 1997-11-19)
refsoft971120\vm\makefile.g723 (1138, 1997-11-07)
refsoft971120\vm\makefile.g729 (1612, 1997-05-09)
refsoft971120\vm\makefile.lpc (3767, 1997-11-19)
refsoft971120\vm\makefile.par (3545, 1997-11-17)
refsoft971120\vm\makefile.tf (6600, 1997-11-21)
refsoft971120\vm\src_frame (0, 2004-10-19)
refsoft971120\vm\src_frame\audio.c (10720, 1997-11-12)
refsoft971120\vm\src_frame\audio.h (6327, 1997-11-12)
refsoft971120\vm\src_frame\bitstream.c (38912, 1997-11-12)
refsoft971120\vm\src_frame\bitstream.h (14013, 1997-11-12)
refsoft971120\vm\src_frame\cmdline.c (22469, 1997-11-12)
refsoft971120\vm\src_frame\cmdline.h (9274, 1997-11-12)
refsoft971120\vm\src_frame\common.c (3832, 1997-11-12)
refsoft971120\vm\src_frame\common.h (3300, 1997-11-12)
refsoft971120\vm\src_frame\CVS (0, 2004-10-19)
refsoft971120\vm\src_frame\CVS\Entries (835, 1997-11-17)
refsoft971120\vm\src_frame\CVS\Repository (40, 1997-11-12)
refsoft971120\vm\src_frame\CVS\Root (27, 1997-11-12)
refsoft971120\vm\src_frame\dec.h (8614, 1997-11-12)
refsoft971120\vm\src_frame\fir_filt.c (5382, 1997-09-13)
refsoft971120\vm\src_frame\fir_filt.h (2029, 1997-09-13)
refsoft971120\vm\src_frame\mp4.h (3579, 1997-11-12)
refsoft971120\vm\src_frame\mp4dec.c (27001, 1997-11-17)
refsoft971120\vm\src_frame\pan_picola.c (18467, 1997-03-11)
refsoft971120\vm\src_frame\pan_picola.h (1905, 1997-03-11)
refsoft971120\vm\src_frame\picola_dmy.c (2733, 1997-11-12)
... ...

********************************************************************** *** *** *** MPEG-4 Audio Reference Software *** *** *** ********************************************************************** Content of README_refsoft ========================= 1 About MPEG-4 Audio Reference Software 2 Further Information 3 ISO Copyright Header 4 How to compile and run this software 5 Audio File I/O 1 About MPEG-4 Audio Reference Software ========================================= This is the MPEG-4 Reference Software for Natural Audio and Natural Speech Coding. This software was developed by many contributors in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and 3. This software is an implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 Audio standard. In the following the MPEG-4 Audio Reference Software is also refered to as Verification Model (VM) software. 2 Further Information ======================= Further information about MPEG-4 Audio is available on the following sites: The official MPEG Home Page: http://www.cselt.it/mpeg MPEG Audio Web Page: http://www.tnt.uni-hannover.de/project/mpeg/audio/ MPEG Audio ftp server: ftp://ftp.tnt.uni-hannover.de/pub/MPEG/audio/ 3 ISO Copyright Header ======================== All files of the Reference Software have the following copyright header: This software module was originally developed by FirstName LastName (CompanyName) and edited by FirstName LastName (CompanyName) FirstName LastName (CompanyName) in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and 3. This software module is an implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio standards free license to this software module or modifications thereof for use in hardware or software products claiming conformance to the MPEG-2 NBC/ MPEG-4 Audio standards. Those intending to use this software module in hardware or software products are advised that this use may infringe existing patents. The original developer of this software module and his/her company, the subsequent editors and their companies, and ISO/IEC have no liability for use of this software module or modifications thereof in an implementation. Copyright is not released for non MPEG-2 NBC/MPEG-4 Audio conforming products. The original developer retains full right to use the code for his/her own purpose, assign or donate the code to a third party and to inhibit third party from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products. This copyright notice must be included in all copies or derivative works. Copyright (c) 1997. 4 How to compile and run this software ======================================== The VM software is written in ANSI C and is C++ compilable. It can be compiled and linked using GNU's gcc/g++ and GNU's make. 4.1 Structure of the software ------------------------------- vm/ README_refsoft (this file) makefile* makefiles src_frame/* frame work source code (decoder) src_frame_enc/* frame work source code (encoder) src_par*/* PARA core source code src_lpc*/* CELP core source code src_tf*/* T/F core source code include/ library include files (decoder) libtsp.h afsp include file libtsp/AFpar.h afsp include file *.h other library include files include_enc/ library include files (encoder) tables/ runtime data tables sunos/ platform: SunOS mp4enc encoder executable mp4dec decoder executable obj/ object files lib/ libraries libtsp.a afsp library *.a other libraries sgi/ platform: SGI (IRIX) linux/ platform: Linux sol/ platform: Solaris 4.2 Making the executables ---------------------------- Before making the VM executables, set the environment variable SYSTEM_NAME according to your software platform (SunOS, IRIX, Linux, OS2, Solaris): setenv SYSTEM_NAME SunOS In the following, is to be replaced by your local software platform (sunos, sgi, linux, os2, sol). Now make can be invoked cd vm make all It is possible to disable different modules of the VM when making the executable. The disabled modules are replaced by corresponding dummy modules to maintain linkability. E.g. to enable the LPC core only, use make TF=0 LPC=1 PAR=0 Instead of specifying these options on the command line, you can also write them as TF = 0 LPC = 1 PAR = 0 into the file makefile.cfg . For further available options, check the sub-makfiles makefile.par makefile.lpc makefile.tf . 4.3 Running the encoder and decoder ------------------------------------- Before running the VM, you should set the following environment variables according to your local path names, audio file formats etc.: MP4_ORI_PATH path for original audio files MP4_BIT_PATH path for bit stream files MP4_DEC_PATH path for decoded audio files MP4_ORI_FORMAT format of original audio files MP4_DEC_FORMAT format of decoded audio files MP4_RAWAUDIOFILE raw audio file format (for reading headerless files) (sample format, num header bytes, sampling rate, byte order, num channels, gain factor) Example: setenv MP4_ORI_PATH /data/mp4/ori/ setenv MP4_BIT_PATH /data/mp4/bit/ setenv MP4_DEC_PATH /data/mp4/dec/ setenv MP4_ORI_FORMAT .au setenv MP4_DEC_FORMAT .au setenv MP4_RAWAUDIOFILE "integer16, 0, 8000.0, native, 1, 1.0" Invoke the encoder and decoder with the option -h to get a list of the command line options available: cd vm /mp4enc -h /mp4dec -h The following example encodes the file test.au to the bit stream file test_hvx.mp4 and then decodes this bit stream to the file test_hvx.aiff using the parametric HVXC mode at 2 kbit/s: /mp4enc -d 3 -m par -r 2000 -c "m=hvx" test -o test_hvx /mp4dec -d 3 -ed .aiff test_hvx 5 Audio File I/O ================== All audio file i/o of the VM software is handled via the audio.h interface. The current implementation of audio.c is based on the AFsp package to support a wide range of audio file formats. Further details about the AFsp package are give below: 5.1 The AFsp Audio File I/O Package ------------------------------------- To provide support for a variety of audio file formats, the VM software uses the AFsp package for all audio file i/o. The AFsp package is written by Peter Kabal and is available via ftp: current version: AFsp-V3R2.tar.Z WWW site: http://www.TSP.EE.McGill.CA/software.html ftp site: ftp://ftp.TSP.EE.McGill.CA/pub/AFsp mirror site: ftp://ftp.tnt.uni-hannover.de/pub/audio/AFsp To make the libtsp library required by the VM software, unpack AFsp-V3R2.tar.Z, goto AFsp-V3R2/libtsp and start make. Finally the following three files have to be copied to the vm directory tree: vm/include/libtsp.h vm/include/libtsp/AFpar.h vm//lib/libtsp.a 5.2 Excerpt from the AFsp Copying file ---------------------------------------- Copyright (C) 1997 Peter Kabal The AFsp audio file routines are provided free of charge without warranty of any kind. All components are copyrighted. They may be distributed free of charge provided that the recipients also acquire the right to distribute them. In no case can this software be incorporated into a work which is distributed for a fee. -- $Id: README_refsoft,v 1.2 1997/11/11 17:59:00 purnhage Exp $

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