changelog

一个共享源码的音频库6 (编译程序用的 makefile等）

Changelog

------------------------------------------------------

07/03/2002     V 0.7.3 Beta released.

-------------------------------------------------------
07/01/02 Darrick Servis <[e-mail]> 	

	o aflib/aflibConvertor.cc - Minor changes to SrcUP and SrcUD to fix
	  compilation errors with Visual C++.  Thanks to 
	  "Armin Gerritsen" <[e-mail]> for pointing this
	  out and Julius Smith <[e-mail]> for providing the fix.

	o examples/osalp - Added configure script and getopt_long coding.  
	  Now compiles for FreeBSD and Solaris.

	o aflib/aflibDateTime.cc - Changed localtime_r to localtime.  Now
	  compiles for Darwin.  This was the only Posix extension used in
          code.

-------------------------------------------------------
05/10/02 Darrick Servis <[e-mail]> 	

	o In aflibAudioSampleRateCvt.  Fixed memory leek in compute_segment.

	o configure. Added tests for blade, lame and mpg123 executibles. 
	  Repaired module install location.  Added option for path
	  to sox source code.  Upgraded to autoconf-2.5.3, automake-1.6.1
	  and libtool-1.4.2.  
	
	o cleaned up the osalp example.  added testsox.sh script.  
	  added pitch mode.

	o handled errors for file opening in player and editor examples.


-------------------------------------------------------
03/10/02 Darrick Servis <[e-mail]> 	

	o In aflibAudioMixer.  compute_segment now clips the final mix to the
	  limits of it's data size.  This fixes the amplitude problem where
 	  having more then one mix with amplitude 100 would cause distortion.
	  Result is a default amplitude of 100 is sufficient for most mixes.

	o In aflibAudioStereoToMono. Added setAmplitude function.  Renamed 
	  setMix function to setMixType.  Added support for replacing
	  parent (addParent will replace existing parent).

	o In aflibAiffFile, aflibAifcFile, aflibAuFile and aflibWavFile.  
	  Fixed bug in afread where position was over running the length 
	  of the file.

	o Added ogg to configure script.

-------------------------------------------------------
02/15/02 Darrick Servis <[e-mail]> 	

	o Changed format of Changelog putting most recent entries up top.
	o Renamed CHANGES to ChangeLog.
	o Renamed TASKS to TODO.
	o Fixed bug in aflibAudioFile constuctor that caused segfault if
	  _file_return was NULL.
	o Fixed bug in aflibMemCache which caused position = -1 to be
	  cached.
	o Updated aflibAudioSampleRateCvt to handle -1 position.
	  Added isChannelsSupported function since class only handles
	  up to two channels.	
	o Fixed bug in aflibConvertor which caused too many samples
	  to be processed if the requested number of samples was more
	  then what was actually availible (i.e at the end of file).
	  The fix is a guess at how many samples to process and more
	  work will need to be done to make it more accurate.  
	o Fixed bug in aflibAudio which caused _cvt to receive the
	  wrong config if a _mix was also added internally.
	o Added virtual setPowerMeter and setAudioSpectrum functions to
	  aflibAudioSpectum class so one may inherit this class and do
	  what they want when these functions are called.  This will allow
	  more then one power meter and/or audio specturm per app.
	o In aflibAudio, getName() and compute_segment() no longer required
	  to be implemented.
	o Changed aflibSoxFile module to link to external libst.a library.
	o Added aflibDebug class to consolidate calls to stderr and getenv.
	o Added file conversion test scripts to osalp directory.
	o Cleaned up osalp example to better explain how to use the library.
	

------------------------------------------------------

02/16/2002    
	o Added ogg format submited by Jeroen Versteeg
02/03/2002    
	o Fixed file passing to mpg123.
08/20/2001    Added AIX changes and namespaces.
08/23/2001    Added type conversions for sox module for AIX.
08/24/2001    Bug fix for AU-ALAW and AU-ULAW file writing.
08/24/2001    Added support for stdin and stdout in Sox File Module.
08/24/2001    Cleaned up and commented configure.in.
08/24/2001    Have aflibFile return AFLIB_CANT_AUTO_TYPE if file type is
 		not supported rather then printing dlopen error.
08/30/2001    Added AIX stuff to config files
12/27/2001    Allow audio file on command line for example player.
12/29/2001    Add removeSegmentsFromInput for aflibAudioEdit plus bug fixes.

------------------------------------------------------

08/10/2001     V 0.7.2 Beta released.

------------------------------------------------------

05/21/2001    Added new Butterworth filter class aflibAudioBWFilter.
06/17/2001    Updated files with new email address [e-mail]
06/26/2001    Updates library to be able to compile with gcc 3.0.
07/18/2001    Added aflibAudioMemoryInput class.
07/19/2001    Added AFLIB_DATA_32S data type for 32 bit signed data.
08/04/2001    Fixed aflibData::convertToSize for many conversions.
08/04/2001    Converted aflibConverter class to use base types instead of HWORD etc. 
              Because these are duplicated in windows.
08/05/2001    Changed sample rate conversion classes to include a volume factor for
              the small and large filters.
08/06/2001    Changed all STL files from the form stl.h to <stl>.

------------------------------------------------------

05/20/2001     V 0.7.1 Beta released.

------------------------------------------------------

12/15/2000     Fixed passing of file name to external modules like lame, blade, 
		and mpg. Now accounts for blanks in file names.
12/25/2000     Changed prog directory to osalp and added README and 
		functionality for command line program.
01/02/2001     Fixed bug in aflibAudioEdit class with getSegment function. Also 		fixed some compile warnings in formatlib sub dirs.
01/03/2001     Made some code review changes.
02/21/2001     Made fix for freebsd. Changed atoll to sscanf.
03/12/2001     added support for passing format string to aflibAudioFile::open.

		BUG FIX: added aflibAudio::isChannelsSupported(int& channels).
		Some file modules would crash or write improper data if the 
		number of channels in the aflibData object sent was not
		supported.  Also added aflibAudio::convertChannels to do this.

		Cleaned up aflibData::convetToSize.  
		- use glibc byte swap it they have it.
		- moved bit shifting to macros.
		- got rid of a intermediries.
		- moved endian checks outside of conversion routines.

		BUG_FIX: fixed bug in aflibSampleData::process where
		aflib would crash if premature EOF

		Rewrote aflibFile::parseModuleFile() to query modules
		rather then using aflib_module.list file. 					

03/17/2001    Bug Fixes:
                1. Removed extra magic lines for wav and au. Only need to 
		recognize one.
                2. Change magic for mp3 from 1d3 to ID3.
                3. Changed format names from AU to AU-ALAW and AU-ULAW.
                4. Fixed audiofile lib for aiff format with tags on 0 length.

03/23/2001    Fixed cache problem in aflibAudio::process. When a node was at 
		the start of a chain and all data was retrieved from cache the 
		aflibConfig data was not being set in the aflibData object.
04/07/2001    1. Fix crash when a zero length copyright text field is in an 
		aiff format file.
              2. For au format if an unsupported compression file (ie G721) is 
		selected then library will crash sometimes. Problem is track 
		structure is not being initialized correctly.
              3. For au format for compression modes the total frames was coming
		back half of what it should be and thus only half of file was 
		being played.
              4. Fixed distortion for a-law and mu-law stereo files for both wav
		and au.
04/08/2001    1. Fixed write of alaw and ulaw. Data was scrambled and size was 
		wrong.
              2. Also audiofile library does not support 8U data for alaw and 
		ulaw so we now convert to 16S first for wav and au.
04/15/2001    Changed audiofile library to write WAVE ALAW and MULAW formats for 		
		WAVE instead of IBM. I believe the WAVE's are more popular.
04/21/2001    Fix mpg module. Corrected run-on problem with some mp3 files and 
		also fixed a crash with some other mp3 files.
04/22/2001    Added comments to many files for doxygen generation.
              Removed old files in formatlib/mp3/mpg and formatlib/linux_dev.
              Renamed files in mpg123 to Mpg123 to distinguish from Mpg for 
		doxygen.
              Since number of channels can be changed automatically I changed 
		aflibAudioEdit to accept inputs with different number of 
		channel inputs.
04/26/2001    Changed loading of modules from RTLD_NOW to RTLD_LAZY. This was 
		needed for Solaris since the mpg module had unresolved errors 
		for -lnsl.
04/29/2001    Added sox to Makefile.am for make dist option. Also added sox 
		include files.
              Fixed sox module for config data passed into open. This is not to 
		be used but returned. Was using junk data. Also fixed a-law and 
		u-law in sox module.
04/30/2001    Fix AIFC format with markers. Sox module does not allow markers 
		without instruments. My docs says markers can be used.
              Fixed sox module for AU format with A-LAW encoding. Added a break