CN103561262A - Video transcoding system and method - Google Patents
Video transcoding system and method Download PDFInfo
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- CN103561262A CN103561262A CN201310541481.2A CN201310541481A CN103561262A CN 103561262 A CN103561262 A CN 103561262A CN 201310541481 A CN201310541481 A CN 201310541481A CN 103561262 A CN103561262 A CN 103561262A
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Abstract
The invention provides a video transcoding system and method. The video transcoding system comprises a transcoding encryption module and a play decryption module. The transcoding encryption module comprises a first receiving unit, a first decoding unit, a first detection unit, an encryption unit, a first control unit and a second output unit. The transcoding encryption module obtains transcoding files and outputs the transcoding files in a decoding mode after encrypting the transcoding files. The play decryption module comprises a second receiving unit, a second decoding unit, a second detection unit, a decryption unit, a second control unit and a second output unit. The play decryption module obtains the decoding files and outputs the decoding files in a decoding mode after decrypting the decoding files. The video transcoding system and method can protect copyrights, and are simple in structure, low in cost and suitable for being popularized in China.
Description
Technical field
The present invention relates to computer and communication field, be specifically related to a kind of video code conversion system and method.
Background technology
Internet, applications makes the propagation of information more convenient in Digital Media, the video resource of the computer user of different regions on can shared network, legal music MV and film etc.Meanwhile, we also need in the face of new problem.First, the terminal of video playback is variation day by day, and different terminal (as mobile phone, PC, panel computer) is also not quite similar to the requirement of video format and video quality.Secondly, some unwarranted video resources spread in network.On the one hand, these pirate videos have been encroached on video distribution person's interests, have hit primo and musical composition person's enthusiasm.On the other hand, the most of definition of these pirate videos is not high, and content is discontinuous, is unfavorable for the propagation of outstanding video.Therefore, a kind of video code conversion of necessary design and protection system, complete the mutual conversion between different video form, protects legal video not to be subject to illegal infringement simultaneously.
The domestic research about video aspect at present concentrates on transcoding application and the embedded system application aspect of video mostly.
Compare with domestic, external copyright protection consciousness is stronger, and it is rapider that corresponding digital copyright protection system also develops.For different electronic document type, numerous companies have developed different copyright protecting systems.Conventionally, electronic file form mainly contains two large types: the file format of on-fixed format and the file format of fixed format.Wherein, the file format of on-fixed format comprises html form and office documents protection.For example, in the protection of the DRM in the office series of products of Microsoft service plan, author can add a cover watermark to document.Aspect html protection, the IE browser of Microsoft can be protected the html encrypting, and prevents that unwarranted user is to operations such as information copy.The file format of fixed format often has PDF, WDL etc.The Authentica company of the U.S. has released Secure Documents for PDF system, and this system is used Plug-in technology to control PDF, enjoys higher reputation abroad on copyright protection market.About the digital copyright protecting of picture, the way of many foreign is to add the famous product photoshop of digital watermarking ，Ru Adobe company just to provide the relevant plug-in unit that can add a cover digital watermarking for user.Aspect video and audio digital copyright protecting, the more famous Windows Media DRM that surely belongs to Microsoft.This technology is for the protection of audio frequency (Windows Media Audio form, * .wma) and the video (Windows Media Video form, *, wmv) of Microsoft.When user plays protected media resource, need to obtain a licence and decipher, broadcasting can be well on.
On the whole, external more deep than domestic about the research of FFmpeg and DRM, this and external copyright protection consciousness are than the domestic dense much relations that have.But corresponding product more complicated is expensive, therefore, researches and develops the lower video code conversion system that can protect corresponding video that can use in China of a kind of simple in structure and cost and seem particularly important.
Summary of the invention
The problem that the present invention cannot protect video for solving the above-mentioned existing ordinary video trans-coding system of mentioning in transcoding, provides a kind of video code conversion system, and this system configuration is simple and cost is low, is adapted at China and promotes.This system contains encryption system, can protect the copyright of video.
Another object of the present invention is to provide a kind of video transcoding method that can protect copyright, and this video transcoding method can be protected video in video code conversion.
Concrete, the invention provides a kind of video code conversion system, it comprises transcoding and encrypting module and plays deciphering module;
Described transcoding and encrypting module comprises the first receiving element, the first decoding unit, the first detecting unit, ciphering unit, the first control unit and the first output unit; Described transcoding and encrypting module is obtained transcoding file and described transcoding file is encrypted to rear decoding output;
Described broadcasting decrypting device comprises the second receiving element, the second decoding unit, the second detecting unit, decrypting device, the second control unit and the second output unit; Described broadcasting decrypting device is obtained described decoding file and is decrypted rear decoding output.
Preferably, described the first receiving element obtains to be needed after transcoding file, file is sent to the first decoding unit decodes, after whether described the first detecting unit is key frame judgement to file after decoding, key frame is sent to after ciphering unit is encrypted and is sent to described the first control unit, non-key frame data are directly sent to described the first control unit; Described the first control unit is encoded and is sent to the first output unit after computing and exports all data.
Preferably, described the second receiving element obtains after above-mentioned coded file, coded file is sent to the second decoding unit decodes, after whether described the second detecting unit is key frame judgement to file after decoding, key frame is sent to and after decrypting device is decrypted, is sent to described the second control unit, non-key frame is directly sent to the second control unit, and described the second control unit is sent to the second output unit after to all decoding data computings and exports.
Preferably, a kind of method of carrying out video code conversion according to above-mentioned a kind of video code conversion system, it comprises the following steps:
S1: the first receiving element obtains to be needed after transcoding file, is sent to the first decoding unit by file and decodes;
S2: whether the first detecting unit is key frame judgement to file after decoding;
S3: key frame is sent to after ciphering unit is encrypted and is sent to described the first control unit, non-key frame data are directly sent to described the first control unit;
S4: the first control unit is encoded and is sent to the first output unit after computing and exports all data;
S5: the second receiving element obtains after above-mentioned coded file, is sent to the second decoding unit by coded file and decodes;
S6: whether the second detecting unit is key frame judgement to file after decoding;
S7: key frame is sent to after decrypting device is decrypted and is sent to described the second control unit, non-key frame is directly sent to the second control unit;
S8: the second control unit is sent to the second output unit after to all decoding data computings and exports.
The video code conversion system and method that can protect copyright provided by the invention, simple in structure and cost is low, be adapted at China and promote.
Accompanying drawing explanation
Fig. 1 is structural representation block diagram of the present invention;
Fig. 2 is the workflow diagram of transcoding and encrypting module of the present invention;
Fig. 3 is the workflow diagram of broadcasting decrypting device of the present invention.
Embodiment
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
As shown in Figure 1, the invention provides a kind of video code conversion system, it comprises transcoding and encrypting module 1 and plays deciphering module 2;
Transcoding and encrypting module 1 comprises the first receiving element 10, the first decoding unit 11, the first detecting unit 12, ciphering unit 13, the first control unit 14 and the first output unit 15; Transcoding and encrypting module 1 is obtained transcoding file and described transcoding file is encrypted to rear decoding output;
Play decrypting device 2 and comprise the second receiving element 20, the second decoding unit 21, the second detecting unit 22, decrypting device 23, the second control unit 24 and the second output unit 25; Broadcasting decrypting device 2 is obtained described decoding file and is decrypted rear decoding output.
Preferably, the first receiving element 10 obtains to be needed after transcoding file, file is sent to the first decoding unit 11 decodes, after after the first 12 pairs of detecting units decoding, whether file is key frame judgement, key frame is sent to after ciphering unit 13 is encrypted and is sent to the first control unit 14, non-key frame data are directly sent to the first control unit 14; The all data of the first 14 pairs of control units are encoded and are sent to the first output unit 15 after computing and export.
Preferably, the second receiving element 20 obtains after above-mentioned coded file, coded file is sent to the second decoding unit 21 decodes, after after the second 22 pairs of detecting units decoding, whether file is key frame judgement, key frame is sent to and after decrypting device 23 is decrypted, is sent to described the second control unit 24, non-key frame is directly sent to and is sent to the second output unit 25 after 24 pairs of all decoding data computings of the second control unit 24, the second control unit and exports.
Preferably, a kind of method of carrying out video code conversion according to above-mentioned a kind of video code conversion system, it comprises the following steps:
S1: the first receiving element 10 obtains to be needed after transcoding file, is sent to the first decoding unit 11 by file and decodes;
S2: after the first 12 pairs of detecting units decoding, whether file is key frame judgement;
S3: key frame is sent to after ciphering unit 13 is encrypted and is sent to the first control unit 14, non-key frame data are directly sent to the first control unit 14;
S4: all data of the first 14 pairs of control units are encoded and are sent to the first output unit 15 after computing and export;
S5: the second receiving element 20 obtains after above-mentioned coded file, is sent to the second decoding unit 21 by coded file and decodes;
S6: after the second 22 pairs of detecting units decoding, whether file is key frame judgement;
S7: key frame is sent to after decrypting device 23 is decrypted and is sent to the second control unit 24, non-key frame is directly sent to the second control unit 24;
S8: be sent to the second output unit 25 after all decoding data computings of the second 24 pairs of control units and export.
The video code conversion system and method that can protect copyright provided by the invention, simple in structure and cost is low, be adapted at China and promote.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a video code conversion system, is characterized in that: it comprises transcoding and encrypting module and plays deciphering module;
Described transcoding and encrypting module comprises the first receiving element, the first decoding unit, the first detecting unit, ciphering unit, the first control unit and the first output unit; Described transcoding and encrypting module is obtained transcoding file and described transcoding file is encrypted to rear decoding output;
Described broadcasting decrypting device comprises the second receiving element, the second decoding unit, the second detecting unit, decrypting device, the second control unit and the second output unit; Described broadcasting decrypting device is obtained described decoding file and is decrypted rear decoding output.
2. described a kind of video code conversion system according to claim 1, it is characterized in that: described the first receiving element obtains to be needed after transcoding file, file is sent to the first decoding unit decodes, after whether described the first detecting unit is key frame judgement to file after decoding, key frame is sent to after ciphering unit is encrypted and is sent to described the first control unit, non-key frame data are directly sent to described the first control unit; Described the first control unit is encoded and is sent to the first output unit after computing and exports all data.
3. described a kind of video code conversion system according to claim 2, it is characterized in that: described the second receiving element obtains after above-mentioned coded file, coded file is sent to the second decoding unit decodes, after whether described the second detecting unit is key frame judgement to file after decoding, key frame is sent to and after decrypting device is decrypted, is sent to described the second control unit, non-key frame is directly sent to the second control unit, and described the second control unit is sent to the second output unit after to all decoding data computings and exports.
4. according to above-mentioned a kind of video code conversion system, carry out a method for video code conversion, it is characterized in that: it comprises the following steps:
S1: the first receiving element obtains to be needed after transcoding file, is sent to the first decoding unit by file and decodes;
S2: whether the first detecting unit is key frame judgement to file after decoding;
S3: key frame is sent to after ciphering unit is encrypted and is sent to described the first control unit, non-key frame data are directly sent to described the first control unit;
S4: the first control unit is encoded and is sent to the first output unit after computing and exports all data;
S5: the second receiving element obtains after above-mentioned coded file, is sent to the second decoding unit by coded file and decodes;
S6: whether the second detecting unit is key frame judgement to file after decoding;
S7: key frame is sent to after decrypting device is decrypted and is sent to described the second control unit, non-key frame is directly sent to the second control unit;
S8: the second control unit is sent to the second output unit after to all decoding data computings and exports.
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| CN201310541481.2A CN103561262A (en) | 2013-11-06 | 2013-11-06 | Video transcoding system and method |
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| CN201310541481.2A CN103561262A (en) | 2013-11-06 | 2013-11-06 | Video transcoding system and method |
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| CN101321280A (en) * | 2008-07-22 | 2008-12-10 | 国家广播电影电视总局广播科学研究院 | Real-time video transcoding stream medium server |
| US7739742B2 (en) * | 2005-02-01 | 2010-06-15 | Lionel Poizner | Theft protection method and promotion system for audio media |
| CN102036102A (en) * | 2009-09-25 | 2011-04-27 | 腾讯科技（深圳）有限公司 | System and method for transcoding multimedia and system and method for playing multimedia |
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2013
- 2013-11-06 CN CN201310541481.2A patent/CN103561262A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020150247A1 (en) * | 2001-04-12 | 2002-10-17 | Linnartz Johan Paul Marie Gerard | Watermark embedding |
| CN2648738Y (en) * | 2003-10-17 | 2004-10-13 | 清华大学 | Video code translator with video-frequency watermark |
| US20060230169A1 (en) * | 2004-11-15 | 2006-10-12 | Kaplan Mark M | System and method to simultaneously transcode audio and video content for optimized streaming via mobile telecommunications |
| US7739742B2 (en) * | 2005-02-01 | 2010-06-15 | Lionel Poizner | Theft protection method and promotion system for audio media |
| CN101102463A (en) * | 2007-07-25 | 2008-01-09 | 中国网络通信集团公司 | Media stream transmission method |
| CN101321280A (en) * | 2008-07-22 | 2008-12-10 | 国家广播电影电视总局广播科学研究院 | Real-time video transcoding stream medium server |
| CN102036102A (en) * | 2009-09-25 | 2011-04-27 | 腾讯科技（深圳）有限公司 | System and method for transcoding multimedia and system and method for playing multimedia |
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