Tremor is a fixed-point version of the Ogg Vorbis decoder for those platforms that can't do floating point math.
The changing faces of Technology:
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Interent Technology Links:
Texas Instruments TMS320C55x DSP Family
Download the generic lowmem source using Subversion. This is probably the version you want to start working with for a DSP.
There is also a no-byte branch for platforms whose smallest data unit is larger than 8 bits.
Required / Suggested Changes to the code as downloaded:
- Roland Wintersteller's various fixes
See the mailing list entry
- Johannes Sandvall's performance improvements
- alloca removal
The TI compiler does not support this.
- misc compiler warning fixes
- hooks to TI DSPLIB functions cfft3216_NOSCALE and cbrev32
These are part of the TI DSPLIB which can be downloaded from the TI website.
- 64-bit math functions
- converting all ints assumed to be 32 bits to ogg_int32_t
- Tremor Mailing List - lots of info here, but have to wade through a lot!