The present invention relates to a method and apparatus for transmitting video
and/or audio data in a non-reliable and bandlimited network from a server to a
client. The network may for instance be a wireless network. The data stream includes
P-frames and I-frames. If during transmission a frame gets lost, the client notifies
the server of the data loss when the next packet is received at the client correctly.
The server then skips all the P-frames of the current P-frame sequence and continues
the transmission with the next I-frame. Preferably, each packet has assigned a
sequence number and the message from the client includes the sequence number of
the currently received packet. The server may ignore a message from the client
if the client's request for skipping the P-frames has already been executed. It
is preferred to make use of the present invention for streaming MPEG data.