Methods and nodes for synchronized streaming of a first and a second data stream

A method performed by a server of a communications network, the network further comprising at least one client device, for synchronized streaming of at least two data streams, the at least two data streams being related to a same event, wherein the method comprises the steps of:

• encoding a first data stream;
• generating first time metadata for the first data stream, the first time metadata being indicative of a current time of the first data stream;
• encoding a second data stream;
• generating second time metadata for the second data stream, the second time metadata being indicative of a current time of the second data stream;
• streaming the first and second data streams;
• analyzing time data related to the first and second data streams, in order to determine a time relationship between the first and second data streams;
• creating an offset file comprising the time relationship between the first and second data streams;
• providing the first data stream, second data stream, first time metadata, second time metadata and the offset file to the client device.

A system of a communications network, comprising a server and at least one client device, connectable to the communications network, for synchronized streaming of at least two data streams, the at least two data streams being related to a same event, wherein the server comprises:

• an encoder for encoding the first data stream and the second data stream;
• an analyzer for analyzing time data related to the first and second data stream, in order to determine a time relationship between the first and second data streams;
• a processing device adapted for creating an offset file comprising the time relationship between the first and second data streams;
• a transmitter for transmitting the first data stream, the second data stream, the first time metadata, the second time metadata and the offset file;
• and wherein the client device comprises:
• a receiver for obtaining the first data stream, the second data stream, the first time metadata, the second time metadata and the offset file;
• a processing device for streaming the first data stream;
• a determination unit for determining, by the client device, a start time for the second data stream;
• wherein the processing device is further adapted for streaming the second data stream, such that the first and second data streams are synchronized.

A server of a communications network, connectable to at least one client device, for synchronized streaming of at least two data streams, the at least two data streams being related to a same event, wherein the server comprises:

• an encoder for encoding a first data stream and a second data stream and for generating first time metadata for the first data stream, the first time metadata being indicative of a current time of the first data stream, and for generating second time metadata for the second data stream, the second time metadata being indicative of a current time of the second data stream;
• a processing device adapted for streaming the first and second data streams;
• an analyzer for analyzing time data related to the first and second data streams, in order to determine a time relationship between the first and second data streams;
• wherein the processing device is further adapted for creating an offset file comprising the time relationship between the first and second data streams and for providing the first data stream, first time metadata, second time metadata and the offset file to the client device.