CN111601113A - 一种基于区块链的直播溯源方法 - Google Patents

一种基于区块链的直播溯源方法 Download PDF

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CN111601113A
CN111601113A CN202010406037.XA CN202010406037A CN111601113A CN 111601113 A CN111601113 A CN 111601113A CN 202010406037 A CN202010406037 A CN 202010406037A CN 111601113 A CN111601113 A CN 111601113A
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应鸣
彭小燕
陈金荣
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Hangzhou Arcvideo Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/218Source of audio or video content, e.g. local disk arrays
    • H04N21/2187Live feed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234309Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234381Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping

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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本发明公开了一种基于区块链的直播溯源方法。它具体包括如下步骤:用户为编码服务器预置信息;编码器为采集到视频音频数据编码成压缩格式前,将信息写入区块链,生成区块hash和数据ID;编码器在把视频数据编码成压缩格式时,将生成的区块hash和数据ID写入视频流的补充增强信息SEI中;在转码服务器进行后续处理过程中,先解析SEI信息获取区块hash和数据ID与预置信息一起写入区块链,生成新的区块hash和数据ID,更新入视频流的SEI中替换原有内容;进行溯源时,从视频流的SEI信息中获取区块hash和数据ID,从区块链中查询对应数据获取此直播流的相关信息。本发明的有益效果是:追踪内容来源,确保内容来源的准确性。

Description

一种基于区块链的直播溯源方法
技术领域
本发明涉及直播相关技术领域,尤其是指一种基于区块链的直播溯源方法。
背景技术
直播是指广播电视节目的后期合成、播出同时进行的播出方式。随着网络直播的兴起,TCP/IP技术广泛应用于直播领域,由于Internet网络节点不易追踪的特点,使得网络直播内容溯源非常困难。具体表现为广电直播领域中,无法通过视频流内容获知其来源信息和中间处理节点信息。
发明内容
本发明是为了克服现有技术中存在上述的不足,提供了一种可以追踪内容来源的基于区块链的直播溯源方法。
为了实现上述目的,本发明采用以下技术方案:
一种基于区块链的直播溯源方法,具体包括如下步骤:
(1)用户为编码服务器预置位置信息、内容描述、制作商信息、设备ID;
(2)编码器开始为摄像机采集到视频音频RAW数据编码成压缩格式前,将步骤(1)中的信息写入区块链,生成区块hash和数据ID;
(3)编码器在把视频数据编码成压缩格式时,将步骤(2)中生成的区块hash和数据ID写入视频流的补充增强信息SEI中;
(4)在转码服务器进行后续处理过程中,先解析输入源的SEI信息,获取区块hash和数据ID,并将此信息和预置的位置信息、内容描述、制作商信息、设备ID写入区块链,生成新的区块hash和数据ID;
(5)转码服务器将步骤(4)中新生成的区块hash和数据ID,更新入视频流的SEI中替换步骤(2)中生成的区块hash和数据ID;
(6)当需要对直播流进行溯源时,从视频流的SEI信息中获取区块hash和数据ID,以此信息从区块链中查询对应数据,获取此直播流的相关信息。
本发明解决了直播过程中内容在产生、存储、传输时面临的内容追溯问题,由于区块链数据的不可篡改性,在直播链的整个过程都可以追踪内容来源,确保内容来源的准确性。
作为优选,在步骤(3)中,编码器在把视频数据编码成H.264格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为6,设置SEIpayload type为5。
作为另一种优选,在步骤(3)中,编码器在把视频数据编码成H.265格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为39或40,设置SEI payload type为5。
作为优选,在步骤(6)中,区块数据中包含前一转码服务器的区块数据,故而依次追溯至最初产生此直播源的编码服务器信息以及源的内容信息,达到内容追溯的效果。
作为优选,在步骤(6)中,当直播流被收录服务器收录成文件存储时,由于文件视频中依然包含有SEI信息,故收录后的每个视频片段仍旧具备内容追溯能力。
本发明的有益效果是:解决了直播过程中内容在产生、存储、传输时面临的内容追溯问题,由于区块链数据的不可篡改性,在直播链的整个过程都可以追踪内容来源,确保内容来源的准确性。
附图说明
图1是本发明的方法流程图。
具体实施方式
下面结合附图和具体实施方式对本发明做进一步的描述。
如图1所述的实施例中,一种基于区块链的直播溯源方法,具体包括如下步骤:
(1)用户为编码服务器预置位置信息、内容描述、制作商信息、设备ID;
(2)编码器开始为摄像机采集到视频音频RAW数据编码成压缩格式前,将步骤(1)中的信息写入区块链,生成区块hash和数据ID;
(3)编码器在把视频数据编码成压缩格式时,将步骤(2)中生成的区块hash和数据ID写入视频流的补充增强信息SEI中;
编码器在把视频数据编码成H.264格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为6,设置SEI payload type为5;
编码器在把视频数据编码成H.265格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为39或40,设置SEI payload type为5;
JSON格式可以为{"blockHash":"xxxxxxxxxxxxxxxxx","dataID":12345}。
(4)为了适配播放终端和网络传输,直播源需要后续转码为各种码率分辨,在转码服务器进行后续处理过程中,先解析输入源的SEI信息,获取区块hash和数据ID,并将此信息和预置的位置信息、内容描述、制作商信息、设备ID写入区块链,生成新的区块hash和数据ID;
(5)转码服务器将步骤(4)中新生成的区块hash和数据ID,更新入视频流的SEI中替换步骤(2)中生成的区块hash和数据ID;
(6)当需要对直播流进行溯源时,从视频流的SEI信息中获取区块hash和数据ID,以此信息从区块链中查询对应数据,获取此直播流的相关信息。区块数据中包含前一转码服务器的区块数据,故而依次追溯至最初产生此直播源的编码服务器信息以及源的内容信息,达到内容追溯的效果。当直播流被收录服务器收录成文件存储时,由于文件视频中依然包含有SEI信息,故收录后的每个视频片段仍旧具备内容追溯能力。
本发明解决了直播过程中内容在产生、存储、传输时面临的内容追溯问题,由于区块链数据的不可篡改性,在直播链的整个过程都可以追踪内容来源,确保内容来源的准确性。

Claims (5)

1.一种基于区块链的直播溯源方法,其特征是,具体包括如下步骤:
(1)用户为编码服务器预置位置信息、内容描述、制作商信息、设备ID;
(2)编码器开始为摄像机采集到视频音频RAW数据编码成压缩格式前,将步骤(1)中的信息写入区块链,生成区块hash和数据ID;
(3)编码器在把视频数据编码成压缩格式时,将步骤(2)中生成的区块hash和数据ID写入视频流的补充增强信息SEI中;
(4)在转码服务器进行后续处理过程中,先解析输入源的SEI信息,获取区块hash和数据ID,并将此信息和预置的位置信息、内容描述、制作商信息、设备ID写入区块链,生成新的区块hash和数据ID;
(5)转码服务器将步骤(4)中新生成的区块hash和数据ID,更新入视频流的SEI中替换步骤(2)中生成的区块hash和数据ID;
(6)当需要对直播流进行溯源时,从视频流的SEI信息中获取区块hash和数据ID,以此信息从区块链中查询对应数据,获取此直播流的相关信息。
2.根据权利要求1所述的一种基于区块链的直播溯源方法,其特征是,在步骤(3)中,编码器在把视频数据编码成H.264格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为6,设置SEI payload type为5。
3.根据权利要求1所述的一种基于区块链的直播溯源方法,其特征是,在步骤(3)中,编码器在把视频数据编码成H.265格式时,将区块hash和数据ID以JSON字符串形式写入到补充增强信息SEI中,此时设置NAL unit类型为39或40,设置SEIpayload type为5。
4.根据权利要求1所述的一种基于区块链的直播溯源方法,其特征是,在步骤(6)中,区块数据中包含前一转码服务器的区块数据,故而依次追溯至最初产生此直播源的编码服务器信息以及源的内容信息,达到内容追溯的效果。
5.根据权利要求1或4所述的一种基于区块链的直播溯源方法,其特征是,在步骤(6)中,当直播流被收录服务器收录成文件存储时,由于文件视频中依然包含有SEI信息,故收录后的每个视频片段仍旧具备内容追溯能力。
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