APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT
A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content.
1 . A method for providing a media content performed by a client, the method comprising:
receiving a Media Presentation Description (MPD) of the media content;
accessing segments of the media content based on the MPD; and
decoding and rendering the media content,
wherein the MPD comprises one or more periods,
wherein each of the periods comprises adaptation set,
wherein the adaptation set comprises one or more representations of the media content,
wherein the representation comprises one or more segments,
wherein the segment is accessible at multiple locations indicated by URLs resolved with respect to the respective BaseURL elements,
wherein the BaseURL element includes (i) MPD level BaseURL element, (ii) period level BaseURL element, (iii) group level BaseURL element, and (iv) representation level BaseURL element,
wherein the BaseURL element of a specific level is resolved with respect to a BaseURL element of a higher level.
2 . The method of claim 1 , wherein each of the representations starts from a start time of the period and continues to an ending point of the period,
wherein a period timeline related to a start attribute of period or a duration attribute of the period is included in the MPD.
3 . The method of claim 1 , wherein the representation is alternative choices of a complete set or subset of media content components forming the media content during the period.
4 . The method of claim 1 , wherein the representation includes one or more media streams and, each of the media streams are an encoded version of a single media content component,
5 . The method of claim 1 , wherein the period level BaseURL element is resolved with respect to the MPD level BaseURL element,
wherein the group level BaseURL element is resolved with respect to the period level BaseURL element,
wherein the representation level BaseURL element is resolved with respect to a group level BaseURL element or a period level BaseURL element.
6 . The method of claim 1 , wherein a first BaseURL element among the BaseURL elements is used as alternative BaseURL elements,
wherein the MPD includes a sourceURL attribute of the segment, one BaseURL element among the BaseURL elements is mapped to the sourceURL attribute.
7 . A client for providing a media content, comprising:
a processor configured to:
receive a Media Presentation Description (MPD) of the media content;
access segments of the media content based on the MPD; and
decode the media content and output the media content,
wherein the MPD comprises one or more periods,
wherein each of the periods comprises adaptation set,
wherein the adaptation set comprises one or more representations of the media content,
wherein the representation comprises one or more segments,
wherein the segment is accessible at multiple locations indicated by URLs resolved with respect to the respective BaseURL elements,
wherein the BaseURL element includes (i) MPD level BaseURL element, (ii) period level BaseURL element, (iii) group level BaseURL element, and (iv) representation level BaseURL element,
wherein the BaseURL element of a specific level is resolved with respect to a BaseURL element of a higher level.
8 . A method for providing a media content performed by a server, the method comprising:
receiving a request for the media content from a client;
transmitting the media content to the client based on a Media Presentation Description (MPD) of the media content;
wherein the MPD comprising one or more periods,
wherein each of the periods comprises adaptation set;
wherein the adaptation set comprises one or more representations of the media content,
wherein the representation comprises one or more segments,
wherein the segment is accessible at multiple locations indicated by URLs resolved with respect to the respective BaseURL elements,
wherein the BaseURL element includes (i) MPD level BaseURL element, (ii) period level BaseURL element, (iii) group level BaseURL element, and (iv) representation level BaseURL element,
wherein the BaseURL element of a specific level is resolved with respect to a BaseURL element of a higher level.
9 . The method of claim 8 , wherein each of the representations starts from a start time of the period and continues to an ending point of the period,
wherein a period timeline related to a start attribute of period or a duration attribute of the period is included in the MPD.
10 . The method of claim 8 , wherein the representation is alternative choices of a complete set or subset of media content components forming the media content during the period.
11 . The method of claim 8 , wherein the representation includes one or more media streams and, each of the media streams are an encoded version of a single media content component,
12 . The method of claim 8 , wherein the period level BaseURL element is resolved with respect to the MPD level BaseURL element,
wherein the group level BaseURL element is resolved with respect to the period level BaseURL element,
wherein the representation level BaseURL element is resolved with respect to a group level BaseURL element or a period level BaseURL element.
13 . The method of claim 8 , wherein a first BaseURL element among the BaseURL elements is used as alternative BaseURL elements,
wherein the MPD includes a sourceURL attribute of the segment, one BaseURL element among the BaseURL elements is mapped to the sourceURL attribute.
14 . A server for providing a media content, the server comprising:
a processor configured to:
receive a request for the media content from a client;
transmit the media content to the client based on a Media Presentation Description (MPD) of the media content;
wherein the MPD comprising one or more periods,
wherein each of the periods comprises adaptation set;
wherein the adaptation set comprises one or more representations of the media content
wherein the representation comprises one or more segments,
wherein the segment is accessible at multiple locations indicated by URLs resolved with respect to the respective BaseURL elements,
wherein the BaseURL element includes (i) MPD level BaseURL element, (ii) period level BaseURL element, (iii) group level BaseURL element, and (iv) representation level BaseURL element,
wherein the BaseURL element of a specific level is resolved with respect to a BaseURL element of a higher level.