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- DelfMPEG CHANGES
-
-
- 0.9 (Tue 29-Oct-2002)
- -mp3 decoder:
- -synthesis - corrected output level
- -huffman/scaling - reorder short blocks only (less memory)
- -scaling - skip zero scalefactor bands (tiny speedup)
- -mp2 decoder:
- -synthesis - corrected output level
- -OUTFILE option added (write decoded data to a file)
-
-
- 0.8 (Sun 28-Oct-2001)
- -mp3 decoder:
- -tiny speedup (further optimized huffman decoding)
- -file reader:
- -added playlist interpreter
- (if a file is not recognized as MPEG-1 audio then it is interpreted
- as a playlist file: one file name per line; comment lines beginning
- with a '#' character are ignored. this playlist format is generated
- by popular player programs like AMPlifier, Winamp (*.m3u), etc.)
-
-
- 0.7 (Sat 07-Apr-2001)
- -mp3 decoder:
- -fixed a bug which had caused minor distortions
- it was there from the very beginning - nobody ever noticed it??!!
- -implemented INTENSITY STEREO decoding (at last)
-
-
- 0.6 (Thu 27-Jul-2000)
- -file reader:
- -fixed a bug in the RIFF header recognition
- -implemented ARexx interface (AREXX/S option added)
-
-
- 0.5 (Sat 08-Jul-2000)
- -file reader:
- -RIFF header recognition added
- (for all guys out there using W*nd*ws encoders)
- -better handling of unknown data at the beginning of files
- (now it should recognize more files with strange headers)
-
-
- 0.4 (Tue 16-May-2000)
- -mp3 decoder:
- -significant speedup!
- (synthesis, hybrid filter and huffman routines optimized)
- -bit reservoir handling (performed by the 68K CPU) is now done after
- calling the DSP decoding routine. this reduces latency time of the
- interrrupt server, indirectly resulting in another little speedup.
- -mp2 decoder:
- -speedup (synthesis routine optimized)
- -file reader:
- -bugfix: SHOWTAG option caused problems for files with ID3v2 tag
- -better sanity check (frame headers) and error report
- -resync feature and STRICT/S option added
- -Xing VBR header recognition added (info for Variable BitRate files)
- -DACRATE/K/N option added
- -VOLUME/K/N option added
-
-
- 0.3 (Sun 09-Apr-2000)
- -mp3 decoder implemented:
- -yes, finally it's here!
- hello to the people who said this would be impossible. ;)
- thanks to all who supported me with their ideas and source codes.
- -INTENSITY STEREO decoding is not implemented yet...
- -mp2 decoder improved:
- -subband synthesis routine optimized
- (slightly faster and shorter code, using more internal P-memory)
- -using more internal L-memory for a little speedup
- -fixed the "low-bitrate streams sounded really strange" bug
- -playback quality slightly improved
- (fixed the little known "intermediate ZERO-bitalloc" bug, which
- could have resulted in some (hardly audible) distortions)
- -MPEG file reader improved:
- -FRAMEBUF/K/N and ASYNCBUF/K/N options added
- (user controls for allocation of buffer memory)
- -read error detection added (eg. unexpected end of file)
- -ID3v2 tag recognition added (for now they are simply skipped)
- -DECODER_BUSY detection added (prevent DSP overload)
- -fast forward (Ctrl-F) feature and FFSKIP/K/N option added
- -position timer output and NOTIMER/S option added
- -MONO/S option added (force mono decoding - significant speedup)
-
-
- 0.2 (Wed 27-Oct-1999)
- -MPEG file reader improved:
- -detect MPEG1 sync word only (reject MPEG2 and MPEG2.5 files)
- -check frameheader changes (layer and sampling freq must be constant)
- -play already buffered data in case of read error (force EOF)
- -unsupported files (i.e. other than layer II) are skipped
- -NOPLAY/S doesn't open delfina.library (it's not required for this)
- -SHOWTAG/S feature added (display ID3v1 tag before playing)
- -NOFASTL/S and NOFASTP/S options added
- (user controls for allocation of the FAST internal DSP memory;
- the nasty deadlocks/crashes with AHI disappear when using NOFASTP!!)
- -changed license terms to GNU General Public License
-
-
- 0.1 (Fri 15-Oct-1999) RELEASE
- -mp2 decoder: little speedup (using more internal DSP memory)
- -mp2 decoder: fixed mono bug
-
-
- 0.1 (Thu 07-Oct-1999) BETA_1
-