Media content streaming using stream message fragments

• US 9,071,667 B2
• Filed: 05/29/2014
• Issued: 06/30/2015
• Est. Priority Date: 08/17/2009
• Status: Active Grant

• Current Assignee: Adobe Inc.
• Original Assignee: Adobe Systems Incorporated (Adobe Inc.)
• Inventors: Swaminathan, Viswanathan, Mitra, Saayan
• Primary Examiner(s): LAZARO, DAVID R
• Application Number:
  US14/290,400
• Publication Number:
  US 20140280789A1
• Time in Patent Office: 397 Days
• Field of Search: 709/231, 709/203, 709/219
• US Class Current: 1/1
• CPC Class Codes: G06F 16/2282 Tablespace storage structures; Management thereof
• CPC Class Codes: H04L 65/60 Network streaming of media packets
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments

Abstract

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for media content streaming can include transacting access information associated with a media stream and transacting one or more fragments associated with the media stream to facilitate a delivery of media content associated with the media stream. Access information can include fragment sequencing information to facilitate individual retrieval of fragments associated with the media stream using a uniform resource identifier via a processing device configured to cache content. A fragment can include one or more stream messages. A stream message can include a message header and a corresponding media data sample. The message header can include a message stream identifier, a message type identifier, a timestamp, and a message length value.

Claims

1. A method comprising:

forming a request to access a media stream at a client device;

responsive to communicating the request to access the media stream, receiving media stream access information via a network, the access information comprising;

fragment sequencing information to facilitate individual retrieval of one or more fragments associated with the media stream and indicate a fragment play order;

identities of one or more servers configured to cache the one or more fragments associated with the media stream;

encoding information for the media stream; and

bootstrapping information comprising fragment duration information for each of the one or more fragments associated with the media stream;

creating, from the access information, a fragment template for the media stream having entries for each of the one or more fragments associated with the media stream, each entry indicating a playback order, a duration, and a location of a fragment;

retrieving the one or more fragments associated with the media stream based on the fragment template; and

consuming the retrieved fragments by the client device.

2. A method as described in claim 1, wherein each fragment comprises one or more stream messages, each of the one or more stream messages including a media data sample and a message header that includes a message stream identifier, a timestamp, and a message length value.

3. A method as described in claim 1, wherein the fragments are retrieved using a Hypertext Transfer Protocol (HTTP) and each of the fragments comprise one or more Real-Time Messaging Protocol (RTMP) messages associated with audio data interleaved with one or more RTMP messages associated with video data.

4. A method as described in claim 1, wherein the location of each fragment in the fragment template is indicated by a uniform resource identifier that identifies the location of a respective media cache node on which the fragment is stored.

5. A method as described in claim 1, further comprising:

creating, from the access information, an initialization fragment comprising bootstrapping information for fragment retrieval and describing encoding information for the one or more fragments associated with the media stream; and

consuming the initialization fragment at the client device prior to retrieving the one or more fragments associated with the media stream.

6. A method as described in claim 1, further comprising receiving updated access information that reflects one or more additional fragments that were generated based on an incremental media data addition to the media stream.

7. A method as described in claim 6, further comprising updating the fragment template for the media stream to include the one or more additional fragments that were generated on the incremental media data addition to the media stream.

8. A method as described in claim 1, further comprising terminating consuming the retrieved fragments by the client device responsive to receiving updated access information indicating termination of the media stream.