Flow synchronization in a receiver

A receiver for synchronizing a first data stream and a second data stream, said receiver comprising:

• an interface for receiving the first stream;
• an interface for receiving the second stream, at least one stream among the first stream and second stream being received by radiofrequency broadcasting and the other stream being received via an IP network, the first and second streams carrying a same service;
• an interface for receiving a value of the mean offset between the first stream and the second stream;
• at least a first buffer for storing the first stream and a second buffer for storing the second stream;
• a calculation module comprising a processor configured:
• to adjust the sizes of the first buffer and the second buffer such that the first buffer is at least equal to the size of the second buffer plus the mean offset value,
• to extract a first extract from the first buffer, starting the extract in the first buffer at a point corresponding to the mean offset value, and a second extract from the second buffer, and
• to perform a comparative analysis of the first extract and the second extract in order to deduce a value of the actual offset which indicates an actual offset between the first stream and the second stream;
• a synchronization module comprising a processor configured to synchronize the first stream and second stream according to the actual offset value obtained, said synchronizing comprises introducing a delay equal to the value of the actual offset to the first stream when rendering the first stream or moving a read cursor in the first buffer by a number of samples corresponding to the value of the actual offset when rendering the second stream.