Decoding method and device for audio data and system-on-a-chip using the same

Abstract

The invention provides an audio data decoding method. Audio data with a first data format is converted into audio data with a second data format; under the condition of not changing a hard decoder, the hard decoder is controlled to decode the audio data with the first data format; and concretely, WMA (Windows Media Audio) Multiple Payload audio data decoding is realized through a WMA Single Payload hard decoder. Meanwhile, the invention provides a decoding device and an SOC (System On Chip) using the decoding method. The method provided by the invention is suitable to be used for solving the problem of compatibility of an SOC circuit on the decoding format; the WMA Multiple Payload format is converted into the WMA Single Payload format capable of being supported by the SOC circuit; the adaptability of the SOC circuit is improved; and the product development cost is reduced.

Description

technical field [0001] The present invention relates to the computer field, in particular to an audio data decoding method and device and an on-chip system using the same. Background technique [0002] In the SOC (System on Chip, chip-level system) circuit, the decoder can have two types of soft decoding and hard decoding. The hard decoding is to use hardware to decode. Modify, so hard decoders generally have compatibility issues with certain formats, such as the problem that hard decoders cannot play WMA Multiple Payload (WMA Multiple Payload) audio files, but they can play WMA Single Payload (WMA Single Payload) songs. When encountering such a problem, the traditional approach in software is to skip songs that cannot be played and not to decode, which will reduce the decoding ability. [0003] If there is a way to play WMA multi-load audio files without modifying the hard decoder, the decoding ability of the SOC can be improved, and the hard decoder core can be saved with...

AI Technical Summary

Problems solved by technology

[0002] In the SOC (System on Chip, chip-level system) circuit, the decoder can have two kinds of soft decoding and hard decoding. The hard decoding is to use hardware to decode. Modify, so hard decoders generally have compatibility issues with certain formats, such as the problem that hard decoders cannot play WMA Multiple Payload (WMA Multiple Payload) audio files, but they can play WMA Single Payload (WMA Single Payload) songs. When encountering such a problem, the traditional approach in software is to skip songs that cannot be played and not to decode, which will reduce the decoding ability

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