Patent ID: 11949966
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A computer device, comprising:
one or more processors; and
memory storing one or more programs, the one or more programs comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
receiving a signaling file corresponding to a multimedia resource, wherein:
the signaling file includes descriptors corresponding to multiple track data of the multimedia resource;
the multiple track data includes (i) main bitstream track data corresponding to a main bitstream and (ii) library picture track data corresponding to a library picture bitstream; and
dependency identifiers included in the descriptors corresponding to the main bitstream track data point to the descriptors corresponding to the library picture track data wherein:
a descriptor corresponding to a piece of the library picture track data comprises a sample index identifier for indicating a sample index number interval for indexing the piece of the library picture track data from the main bitstream track data;

parsing the signaling file, and determining a dependency relationship between the main bitstream track data and the library picture track data according to the dependency identifiers included in the descriptors in the signaling file; and
sequentially acquiring the library picture track data and the main bitstream track data from a data source side according to the determined dependency relationship, including:
for each piece of the main bitstream track data,
obtaining a sample index number interval corresponding to a sample index identifier of the piece of the main bitstream track data;
determining, from the library picture track data a piece of the library picture track data referred to by the sample index number interval; and
decoding the piece of the main bitstream track data and the piece of the library picture track data.