Transmission device, transmission method, reception device, and a reception method
AssigneeSony Group Corporation
InventorIkuo Tsukagoshi
Life of this patent
Estimating the term…
Abstract
It is possible to enable a reception side to easily recognize that metadata is inserted into an audio stream. A metafile including meta information for acquiring an audio stream into which metadata is inserted through a reception device is transmitted. The identification information indicating that the metadata is inserted into the audio stream is inserted into the metafile. At the reception side, it is possible to easily recognize that the metadata is inserted into the audio stream based on the identification information inserted into the metafile.
Claims16
An information processing apparatus, comprising:
- a reception circuit that receives an audio stream;
- a decoding circuit that performs decoding processing on the audio stream and obtains audio data;
- and
- an audio processing circuit that processes the audio data and outputs the audio data to an output circuit, wherein
- a codec of the audio stream is MPEG-H 3D audio,
- the audio stream includes a header and a payload,
- the payload includes “SYNC” corresponding to a synchronization start code, “Frame” that is actual data of 3D audio transmission data, and “Config” indicating a configuration of the “Frame”,
- the “Frame” includes channel coded data or object coded data constituting the 3D audio transmission data,
- the object coded data includes encoded sample data of a single channel element (SCE) and metadata for mapping the encoded sample data to a speaker existing at an arbitrary position and for rendering the encoded sample data, and
- the metadata is included as an extension element (Ext_element).
An information processing method, comprising:
- receiving an audio stream;
- performing decoding processing on the audio stream and obtaining audio data;
- and
- processing the audio data and outputting the audio data to an output device, wherein
- a codec of the audio stream is MPEG-H 3D audio,
- the audio stream includes a header and a payload,
- the payload includes “SYNC” corresponding to a synchronization start code, “Frame” that is actual data of 3D audio transmission data, and “Config” indicating a configuration of the “Frame”,
- the “Frame” includes channel coded data or object coded data constituting the 3D audio transmission data,
- the object coded data includes encoded sample data of a single channel element (SCE) and metadata for mapping the encoded sample data to a speaker existing at an arbitrary position and for rendering the encoded sample data, and
- the metadata is included as an extension element (Ext_element).
A non-transitory computer-readable medium storing a program that causes a computer to execute an information processing method comprising:
- receiving an audio stream;
- performing decoding processing on the audio stream and obtaining audio data;
- and
- processing the audio data and outputting the audio data to an output device, wherein
- a codec of the audio stream is MPEG-H 3D audio,
- the audio stream includes a header and a payload,
- the payload includes “SYNC” corresponding to a synchronization start code, “Frame” that is actual data of 3D audio transmission data, and “Config” indicating a configuration of the “Frame”,
- the “Frame” includes channel coded data or object coded data constituting the 3D audio transmission data,
- the object coded data includes encoded sample data of a single channel element (SCE) and metadata for mapping the encoded sample data to a speaker existing at an arbitrary position and for rendering the encoded sample data, and
- the metadata is included as an extension element (Ext_element).
Dependencies are inferred from the claim text.