Combining video material and data
AssigneeSony United Kingdom Limited
InventorJames Hedley Wilkinson
Life of this patent
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Abstract
A method of combining data with other material comprises the step of repetitively distributing the data in the other material. The data is for example metadata associated with the other material. The other material may be one or more of video, audio and data material preferably in a defined file format e.g. MXF. The material and data from the file are preferably mapped to one of several signal interfaces such as SDI, SDTI and AES3, where the file metadata is repetitively distributed through the stream signal interface by one of several multiplexing methods.
Claims40
A method of combining digital data with other digital material comprising the steps of:
- structuring the said digital data into a predetermined data structure;
- creating a digital bitstream having a predetermined repetitive format compatible with a data recorder each repetition of the format including at least one data space for the said other material and a data space for other data;
- and
- repetitively including the data structure over a plurality of repetitions of the format, the said data structure being included in the said other data space or in part of the data space of the said other material.
A method according to any one of claims 1 to 8, wherein the said digital data is included in the said other data space.
A method according to any preceding claim, wherein the said other data space is an ancillary data space.
A method according to any preceding claim, wherein the said data structure comprises a value field containing the said data, a key field and a length field indicating the amount of data in the value field.
A method according to any preceding claim wherein the said format is repeated in frames, and each repetition of the said digital data structure begins on a frame containing no data of a previous occurrence of the said data structure.
A method according to any preceding claim, wherein a plurality of different data structures having respective identifiers are repetitively distributed in the said format.
A method according to any preceding claim comprising the step of mapping the combined data and other material from the said repetitive format into a file in which the said data structure is contained in one part of the file and the other material is contained in another part of the file.
A method comprising the steps of:
- receiving a digital bitstream including digital data in a predetermined data structure and other digital material, the bitstream having a predetermined repetitive format compatible with a data recorder each repetition of the format including at least one data space for the said other material and a data space for other data and repetitively including the data structure over a plurality of repetitions of the format, the said data structure being included in the said other data space or in part of the data space of the said other material;
- and
- separating the said data structure from the other material.
A method according to any preceding claim and substantially as hereinbefore described with reference to FIGS. 1 to 13 of the accompanying drawings.
Signal processing apparatus arranged to carry out the method of any preceding claim.
A digital bitstream including digital data in a predetermined data structure and other digital material, the bitstream having a predetermined repetitive format compatible with a data recorder each repetition of the format including at least one data space for the said other material and a data space for other data;
- and
- repetitively including the data structure over a plurality of repetitions of the format, the said data structure being included in the said other data space or in part of the data space of the said other material.
Dependencies are inferred from the claim text.