Audio encoding method and apparatus, audio decoding method and apparatus, and readable storage medium

An audio decoding apparatus, comprising:

• at least one memory configured to store computer program code;
• and
• at least one processor configured to read the program code and operate as instructed by the program code, the program code comprising:
• acquisition code configured to cause the at least one processor to:
• acquire an audio bitstream encapsulation, the audio bitstream encapsulation including an audio bitstream, the audio bitstream being obtained by at least performing, using a target encoding mode and a target bit rate mode, audio encoding based on an audio signal, the target encoding mode being acquired from a plurality of candidate encoding modes, and the target bit rate mode being acquired from a plurality of candidate bit rate modes;
• and
• acquire, when a decoding request for the audio bitstream encapsulation is obtained, the target encoding mode and the target bit rate mode from a frame header included in the audio bitstream encapsulation;
• signal decoding code configured to cause the at least one processor to:
• perform, using the target encoding mode and the target bit rate mode, signal decoding based on the audio bitstream to obtain an estimated value of an encoding feature corresponding to the audio bitstream;
• and
• reconstruction code configured to cause the least one processor to reconstruct, using the target encoding mode, the estimated value of the encoding feature to obtain a reconstructed audio signal corresponding to the audio bitstream.

The non-transitory computer-readable storage medium, storing computer code, when executed by at least one processor, causes the at least one processor to at least:

• acquire an audio bitstream encapsulation, the audio bitstream encapsulation including an audio bitstream, the audio bitstream being obtained by at least performing, using a target encoding mode and a target bit rate mode, audio encoding based on an audio signal, the target encoding mode being acquired from a plurality of candidate encoding modes, and the target bit rate mode being acquired from a plurality of candidate bit rate modes;
• acquire, when a decoding request for the audio bitstream encapsulation is obtained, the target encoding mode and the target bit rate mode from a frame header included in the audio bitstream encapsulation;
• perform, using the target encoding mode and the target bit rate mode, signal decoding based on the audio bitstream to obtain an estimated value of an encoding feature corresponding to the audio bitstream;
• and
• reconstruct, using the target encoding mode, the estimated value of the encoding feature to obtain a reconstructed audio signal corresponding to the audio bitstream.