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Ogg Vorbis decoder for Motorola DSP56002
Linköping University, Department of Electrical Engineering.
2004 (English)Independent thesis Basic level (professional degree)Student thesisAlternative title
Ogg Vorbis avkodare för Motorola DSP56002 (Swedish)
Abstract [en]

Ogg Vorbis is a rather new audio format with some similarities with other more known formats such as MP3 and WMA. It is generally accepted to have a better audio quality than most competing formats and it is in contrast to many of its competitors totally licence and royalty free.

The goal with this thesis is to port the existing fixed point decoder Tremor, which is written in C, to Motorola's DSP56002. The DSP has a very limited amount of memory so some optimizations has to be made to be able to run Tremor successfully.

The report presents the necessary steps taken to port Tremor to the DSP and the difficulties of this process. It also describes the memory and CPU usage of the DSP when running Tremor and other results of the port.

A description as well as examples and workarounds of bugs found in the compiler g56k is attached to this report.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2004.
Keyword [en]
Electronics, Tremor, Ogg, Vorbis, DSP, DSP56002, C, Audio Coding
Keyword [sv]
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-2735ISRN: LITH-ISY-EX--05/3700--SEOAI: diva2:20076
Available from: 2005-02-07 Created: 2005-02-07

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