02/27/2005: Release 0.1.3

Download JLayerME 0.1.3 (Sources + Binaries + Docs)  zip (181 KB) or tar.gz (149 KB)

• MPEG 2 frames support added.
• JVM 1.1 (IE + NS) support added.

 07/11/2004: Release 0.1.2

Download JLayerME 0.1.2 (Sources + Binaries + Docs)  zip (177 KB) or tar.gz (145 KB)

• Two last seconds drop bug fixed.
• JAR size improved : 46 KB (instead of 53KB).

 05/06/2002: Release 0.1.1

Download JLayerME 0.1.1 (Sources + Binaries + Docs)  zip (194 KB) or tar.gz (158 KB)

• Unexpected background sound bug fixed.
• BitReserve initialization bug fixed.
• Changes.txt file added.

 04/01/2002: Release 0.1

Download JLayerME 0.1 (Sources + Binaries + Docs)  zip (194 KB) or tar.gz (159 KB)

JLayerME is the J2ME-oriented version of JLayer. It only supports MPEG 1 Layer 3 (i.e. MP3). Release 0.1 is not J2ME full compliant. It runs under J2SE. The decoder is 10% faster and needs less memory than the JLayer classic one. It's the first step to make it runs under CDC/CVM (future) devices. Final goal is to make it runs under CLDC/KVM devices. This project might seem crazy ... yes it is ;-).

JLayerME-CDC 0.1 features :

• MPEG 1 Layer 3 support.
• Simple player for JavaSound 1.0 (J2SE only).
• JAR size : 53 KB.
• Bench notes :
  Heap use range : 760KB to 1280KB - 338 classes loaded.
  Footprint : ~7MB under WinNT4 + J2SE 1.3
  CPU usage : ~11% under PIII 800Mhz/WinNT4 + J2SE 1.3 (Hotspot).
• CDC/CVM support not tested but should be ok.
  "CVM supports the full Java 2 platform, version 1.3 VM specification and libraries, including support for weak references, reflection, serialization, JNI, and RMI. In addition, fine-grained Java 2 platform security APIs, and the Java Platform Debugger Architecture are supported." Extract from CDC Porting Guide.
• Description of CPU usage for thread main :
  28.93% - javazoom.jlme.decoder.SynthesisFilter.compute_pcm_samples()
  11.92% - javazoom.jlme.decoder.LayerIIIDecoder.dequantize_sample()
  8.86% - javazoom.jlme.decoder.LayerIIIDecoder.hybrid()
  8.35% - javazoom.jlme.decoder.HuffmanTables.decode()
  7.47% - javazoom.jlme.decoder.SynthesisFilter.compute_new_v()
  6.77% - javazoom.jlme.decoder.LayerIIIDecoder.invMDCT()
  4.79% - javazoom.jlme.decoder.LayerIIIDecoder.decodeFrame()
  4.59% - javazoom.jlme.decoder.LayerIIIDecoder.reorder()
  3.86% - javazoom.jlme.decoder.LayerIIIDecoder.stereo()
  3.42% - javazoom.jlme.decoder.BitReserve.hget1bit()
  2.54% - javazoom.jlme.decoder.LayerIIIDecoder.antialias()
  2.15% - javazoom.jlme.decoder.LayerIIIDecoder.huffman_decode()
  1.34% - javazoom.jlme.decoder.BitReserve.hputbuf()
   

 09/19/2004: Alpha 0.2

Download JLayerME-CLDC 0.2 (Sources) zip (60 KB)

• MMAPI support added.
• MP3 MDlet player added.
  (It doesn't play MP3 in real-time under SUN KVM, we need help to test it
  under optimized J2ME VMs such as Monty, ...)
• Tested under WTK 2.1+ KVM.
• IT IS NOT READY FOR PRODUCTION.