Real-Time Audio Stream Decoding With Buffered Header Parsing
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Solution Overview
Problem
Existing technologies face challenges in achieving real-time decoding of audio streams in AI customer service scenarios due to the absence of header information in most stream segments, leading to decoding errors when using tools like FFmpeg.
Innovation Solution
A decoding method that buffers and parses stream segments until header information is obtained, adjusts the frame length for parsing, and decodes the audio stream using the header information, including handling incomplete frames and separating non-audio streams, to ensure real-time decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional decoding tools like FFmpeg are used to decode audio stream segments, then decoding can be performed, but decoding errors occur when header information is absent or incomplete in most stream segments
Solution Approach 1:
The patent extracts and stores header information from the first stream segment before decoding subsequent segments. This preliminary action of capturing format parameters (codec type, sample rate, channel configuration) upfront enables reliable decoding of all subsequent segments without requiring header information in each individual segment, thus resolving the decoding errors caused by missing headers.
Solution Approach 2:
The patent introduces an intermediary mechanism that separates header information extraction from the decoding process. The header information is extracted from the first segment and stored as a reference, then used as a mediator to guide the decoding of subsequent segments. This intermediary approach allows the system to overcome the absence of header information in most stream segments while maintaining accurate decoding.
2Reliability
If the entire audio stream is buffered before decoding, then complete header information can be obtained, but real-time decoding capability is lost
Solution Approach 1:
The patent segments the audio stream processing into two distinct phases: (1) extracting and storing header information from the first stream segment, and (2) decoding subsequent segments using the stored header information. This segmentation allows the system to obtain complete header information without buffering the entire stream, enabling real-time decoding of each segment as it arrives while maintaining reliability through the pre-extracted headers.
3Productivity
If stream segments are decoded individually without considering frame boundaries, then decoding can proceed continuously, but incomplete audio frames result in decoding errors
Solution Approach 1:
The patent implements a feedback mechanism that tracks the position of audio frame boundaries during decoding. By monitoring the decoded data against the frame structure defined in the header information, the system can identify incomplete frames at segment boundaries. This feedback allows the decoder to handle incomplete frames appropriately (by buffering or padding) while maintaining continuous decoding of complete frames, thus preserving both productivity and reliability.
Data Source
AI summary
The present disclosure relates to a decoding method, apparatus and computer-readable storage medium, which relates to the field of computer technology. The method of the present disclosure includes buffering one or more stream segments of a data stream which are received, wherein the data stream comprises an audio stream; parsing the one or more stream segments buffered until header information is obtained through the parsing; storing the header information; and decoding stream segments of the audio stream among various stream segments received according to the header information until the audio stream is completely decoded.