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Tiny Decoder *read_stream implementation, How to use the tiny decoder on embedded hardware
post May 2 2011, 15:47
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Joined: 2-May 11
Member No.: 90268

Hi there,

I'm trying to implement a WavPack decoder on embedded hardware using a ARM Cortex-M3 hardware.
The code I use is from the Tiny Decoder package from the downloads page, version is 4.40. I'm using the C-version, no assembler code is used.

The wavpack file is on a FAT formatted SD-Card, I'm able to read both the SD card blockwise, as well as the FAT-system blockwise. Blocks are 512 bytes wide.
My implementation is incompatible to the format of the read_stream, so I try to implement a "translator" function.

I'm not sure, if I get it right:
typedef int32_t (*read_stream)(void *, int32_t);

This implements the stream access - I assume, my function has to return a int32-value of how many bytes it could read and write the bytes to a buffer, void* points to (should it be a char*), the number of bytes that should be read is passed to the function as int32_t?

Has anyone tried to get the decoder running on an ARM processor?
Is there a port of the assembler part to thumb2-instructions?

Thanks in advance!

Best regards
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