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Bit Stream Detector (for S/PDIF)

The Bit Stream Detector (for S/PDIF) library is used to differentiate among S/PDIF structured audio bit streams. S/PDIF is a Digital Audio Interface that can encapsulate a combination of encoded or uncompressed audio bit streams in a standardized block format. Each S/PDIF structured block contains unique stream type information which can be detected and used to invoke the relevant decoder such as ...More

Bit Stream Detector (for S/PDIF)

Product Description

The Bit Stream Detector (for S/PDIF) library is used to differentiate among S/PDIF structured audio bit streams. S/PDIF is a Digital Audio Interface that can encapsulate a combination of encoded or uncompressed audio bit streams in a standardized block format. Each S/PDIF structured block contains unique stream type information which can be detected and used to invoke the relevant decoder such as Dolby® Digital (AC-3), DTS, MPEG Audio and WMA Pro.

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Features

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Functions

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Performance Metrics

MIPS summary:

Code memory (KiB) Data RAM (KiB) Constant Data Tables (KiB) MIPS
Average Peak
2.4 8.2 0.13 0.28 0.75
  • This table highlights expected MIPS performance. MIPS figures can be affected by changes in code and data placement in memory.
  • MIPS were measured using the following configuration:
    • Processor: ADSP-BF533, ADSP-BF548, ADSP-BF527
    • Input buffer size of 8192 bytes
    • All code and data were placed in L1 memory
    • Worst-case input test vector, recorded from a range of DVD players that support DTS, AC3, PCM S/PDIF output.
    • Instruction and Bank A data caches enabled and configured in write-through mode.
  • In the table above all figures refer to one instance of BSDET. “Data RAM” includes stack, instance state and input buffer.
  • Heap (or “malloc()”) is not used.
  • 1 KiB = 1024 Bytes.

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Applications

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Requirements

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Availability and Licensing

Each module supports the Analog Devices, Inc. (ADI) Blackfin Processor family and is a licensed product that is available in object code format. Recipients must sign a license agreement with ADI prior to being shipped the modules identified in the license agreement.

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