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Method, device and system for verifying content integrity of streaming media

A streaming media and integrity technology, applied in the field of verifying the integrity of streaming media content, can solve the problem of high transmission overhead of streaming media content, and achieve the effect of low transmission overhead

Inactive Publication Date: 2011-07-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in this case, when streaming media content is transmitted over the network, all data blocks must carry large-capacity verification information constructed based on Merkle tree chains, which will cause a large transmission overhead for terminal devices to download streaming media content

Method used

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  • Method, device and system for verifying content integrity of streaming media
  • Method, device and system for verifying content integrity of streaming media
  • Method, device and system for verifying content integrity of streaming media

Examples

Experimental program
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Embodiment 1

[0025] Embodiment 1, please refer to figure 1 One embodiment of the method for verifying the integrity of streaming media content in the embodiment of the present invention includes:

[0026] 101. Read the source streaming media file;

[0027] In the streaming media system, the streaming media content exists in the form of files. When a new source streaming media file is added to the streaming media server of the service operator, the streaming media server divides the source streaming media file into a series of Fragmentation, each fragmentation includes a certain number of data blocks, where the data block is the smallest unit of network transmission, the sorting of fragmentation and the sorting of all data blocks are arranged in sequence from front to back according to the playback order of streaming media content, The streaming media server needs to process the source streaming media file in units of fragments to generate post-streaming media files. The sequence numbers ...

Embodiment 2

[0046] Embodiment two, please refer to image 3 , the embodiment of the present invention also provides another embodiment of the method for verifying the integrity of streaming media content, including:

[0047] 301. Send a first request message;

[0048] When the terminal device needs to play a certain streaming media content, the terminal device starts to request the download of the subsequent streaming media file containing the streaming media content. In essence, the terminal device is a segment of the downloaded streaming media file. In this embodiment, the terminal device requests to download sequentially from the first segment of the subsequent streaming media file, but the time required for each segment to be sent from the sender to the terminal device to receive the entire process may vary due to network and other reasons. Therefore, the verification of each fragment by the terminal device does not necessarily start from the first fragment.

[0049] When a terminal...

Embodiment 3

[0070] Embodiment three, please refer to Figure 4 , the embodiment of the present invention also provides another embodiment of the method for verifying the integrity of streaming media content, including:

[0071] 401. Receive an instruction message from a user;

[0072] When the user wants to skip forward or backward to the video provided by the service operator, the user can perform these operations through the VCR operation button on the remote controller. The terminal device receives the user's instruction message, and the terminal device can learn from the instruction message the data block to be played specified by the user through the VCR operation.

[0073] 402. Determine the position of the data block to be played;

[0074] The terminal device determines the position of the data block to be played in all data blocks in the back streaming media file according to the instruction message received. In this embodiment, the back streaming media file has two fragments, a...

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Abstract

The embodiment of the invention discloses a method for verifying the content integrity of a streaming media, further provides a corresponding device and system. In the embodiment of the invention, a streaming media server processes a source streaming media file to obtain a post streaming media file, wherein a data block of the post flow streaming media file carries verification information of a next data block, and the streaming media server further constructs independent verification information of each data block in the post streaming media file and singly saves the independent verification information. Therefore, the embodiment of the invention can ensure that all data blocks of the post streaming media file downloaded by the terminal device are absolutely continuously verified, and the transmission cost is lower after the terminal device downloads the post streaming media file.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method, device and system for verifying the integrity of streaming media content. Background technique [0002] Streaming media refers to a media format that is played on the Internet in a streaming manner. Service operators can provide users with video playback services, such as broadband interactive television (IPTV, Internet Protocol Television) services, in streaming media. At present, the release method of video playback service can adopt the node-assisted distribution scheme, that is, in addition to the streaming media server of the service operator can send streaming media content to users, users can also send their own saved streaming media content to other users on the Internet. The user receives or sends the video playback file through the terminal device provided by the service operator, usually the terminal device is a set-top box. [0003] In order to ensure...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04N21/238
CPCH04L29/0651H04L65/602H04L29/06489H04N21/83H04N21/238H04L65/607H04L65/762H04L65/70
Inventor 朱俊华
Owner HUAWEI TECH CO LTD
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