Methods, devices and computer programs for transmitting or for receiving and playing media streams

摘要

A method is carried out by a receiving and playing device (10), for receiving and playing a media stream. The method includes a first playing procedure (s12), a playing mode switching procedure (s14), and a second playing procedure (s16). The first playing procedure (s12) includes receiving a media stream through a communication medium or network (30) and playing the received media stream. The playing mode switching procedure (s14) includes determining (s142) whether a media content about to be received or being received is locally stored and, if so, switching to the second playing procedure (s16). The second playing procedure (s16) includes playing the media content based on at least the locally stored media content. The invention also relates to methods carried out by a transmitting device (20), to receiving and playing devices (10), to transmitting devices (20), and to computer programs.

主权项

1. A method carried out by a client device, for receiving and playing a media stream, the method comprising:
performing a first playing procedure, wherein the first playing procedure comprises:
transmitting, by the client device to a content server, a request related to a media content item;receiving, at the client device, meta-information transmitted by the content server, the meta-information related to the media content item and comprising an indicator indicating that the media content item is susceptible of being locally stored and a media identifier for identifying the media content item, wherein the indicator and the media identifier are separate and distinct;detecting, in the meta-information, the indicator indicating that the media content item is susceptible of being locally stored; andas a consequence of detecting the indicator, performing a second playing procedure, wherein the second playing procedure comprises:
determining, based on the media identifier included in the meta-information, whether there exists in a local storage a locally stored media content item corresponding to media content item identified by the media identifier; andas a consequence of determining that there exists in the local storage the locally stored media content item, playing the media content item based on at least the locally stored media content item.