WO2013071666A1 - Procédé et système correspondant de prévisualisation et de lecture d'un programme télévision mobile - Google Patents

Procédé et système correspondant de prévisualisation et de lecture d'un programme télévision mobile Download PDF

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Publication number
WO2013071666A1
WO2013071666A1 PCT/CN2011/083962 CN2011083962W WO2013071666A1 WO 2013071666 A1 WO2013071666 A1 WO 2013071666A1 CN 2011083962 W CN2011083962 W CN 2011083962W WO 2013071666 A1 WO2013071666 A1 WO 2013071666A1
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WO
WIPO (PCT)
Prior art keywords
channel
multimedia data
program
mtk
receiving
Prior art date
Application number
PCT/CN2011/083962
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English (en)
Chinese (zh)
Inventor
贾宝锋
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013071666A1 publication Critical patent/WO2013071666A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop

Definitions

  • the present invention relates to the field of mobile television, and more particularly to a method and corresponding system for previewing and playing a mobile television program. Background technique
  • MBBMS Mobile Broadcast Business Management System
  • Different mobile TVs have certain differences in the implementation of functions.
  • the mobile TV playback process supporting MBBMS includes the following steps: After the previous channel is stopped and the next channel is started, the program stream key (MBMS Traffic Key, referred to as MTK) of the program played by the next channel is obtained, and the program stream is obtained. After the key is used, the data stream of the program is descrambled, and then the obtained audio and video data is packaged and sent to the player for playback to be displayed to the user. In this process, there should be no fewer steps, otherwise the program will not play properly.
  • MTK program stream key
  • MTK Program stream key
  • the data stream of the program is descrambled, and then the obtained audio and video data is packaged and sent to the player for playback to be displayed to the user.
  • the present invention provides a method for previewing a mobile TV program, which is applied to a mobile terminal, and includes:
  • Processing the multimedia data of each channel buffered to the local area comprising: obtaining, for each channel, a program stream key (MTK) of the channel according to an encrypted field in the multimedia data of the channel buffered to the local, and then The multimedia data of the channel is descrambled and packaged by using the acquired MTK.
  • MTK program stream key
  • the method further includes:
  • the present invention also provides a method for playing a mobile TV program, which is applied to a mobile terminal, and includes:
  • the multimedia data of the channel is directly received according to the multimedia data of the channel buffered locally, and then the received multimedia data of the channel is processed and played.
  • the processing the received multimedia data of the channel comprising: acquiring a corresponding program stream key (MTK) according to the encrypted field in the received multimedia data of the channel, and then using the acquired MTK to the multimedia
  • the data is descrambled and packaged.
  • MTK program stream key
  • the present invention also provides a system for previewing a mobile TV program, which is applied to a mobile terminal, and includes:
  • the buffer module is configured to: after receiving the electronic service guide, buffer the multimedia data of each channel according to the information of each channel carried therein;
  • the processing module is configured to: after receiving the preview program request sent by the user, respectively The multimedia data of each channel of the local area is processed, and then the I frame data in the processed multimedia data of each channel is sequentially played.
  • the processing module is configured to: obtain, for each channel, a program stream key (MTK) of the channel according to an encrypted field in the multimedia data of the channel buffered to the local, and then use the acquired MTK for the channel
  • MTK program stream key
  • the system further comprises:
  • the playing module is configured to: after receiving the program play request sent by the user, directly receive the multimedia data of the channel requested by the user, and then perform MTK acquisition on the received multimedia data, and use the obtained MTK for the channel.
  • the multimedia data is descrambled and packaged for playback.
  • the present invention also provides a system for playing a mobile TV program, which is applied to a mobile terminal, and includes:
  • the buffer module is configured to: after receiving the electronic service guide, buffer the multimedia data of each channel according to the information of each channel carried therein;
  • a processing module configured to: after receiving a request for playing a channel program by the user, directly receiving the multimedia data of the channel according to the multimedia data of the channel buffered locally, and then receiving the multimedia data of the channel Play after processing.
  • the processing module is configured to: obtain a corresponding program stream key (MTK) according to the encrypted field in the received multimedia data of the channel, and then perform descrambling and packing processing on the multimedia data by using the obtained MTK.
  • MTK program stream key
  • the method of starting the service in the background is used, and the time for closing the previous channel and starting the next channel during the channel program preview is reduced. And it can quickly receive data, and also reduces the waiting time for data. In addition, only the data showing the I frame is played during preview, which greatly reduces the time of channel program preview, thereby improving the performance of the entire mobile TV. Users bring a great experience.
  • FIG. 3 is a detailed flow chart of a channel program preview in an embodiment of the present invention.
  • a method for previewing a mobile TV program is applied to a mobile terminal. As shown in FIG. 1, the method includes:
  • the multimedia data of each channel is buffered and cached locally according to the information of each channel carried therein;
  • the locally buffered multimedia data of each channel is processed, and then the I frame data in the processed multimedia data of each channel is sequentially played.
  • the processing of the multimedia data includes: obtaining a corresponding MTK according to the encrypted field in the received multimedia data, and then performing descrambling and packing processing on the multimedia data by using the obtained MTK.
  • the invention uses the background running program to exchange the core idea of time, realizes the MBBMS channel program preview, not only improves the preview speed overall, but also improves the user's feelings.
  • Step 1 After the terminal with the mobile TV function enters the mobile TV application, the initialization operation of the download of the chip firmware, the scanning of the current working frequency, the locking, the acquisition of the TS0 data, and the like are completed;
  • Step 2 parsing the received electronic service guide data, and completing loading of the program playlist
  • Step 3 Start multiple services in the background, each service corresponds to one channel; each service pair corresponds to the frequency Channel multimedia data is buffered;
  • Step 4 After receiving the program preview request sent by the user, the terminal enters the program preview mode; each service obtains the corresponding MTK according to the encrypted field in the multimedia data obtained by buffering, and then uses the acquired MTK to the multimedia. After the data is descrambled and packaged, it is sent to the player and played by the player in sequence. Because it is the program preview function, it is not necessary to play all the video frame data, and only the video I frame data can be played, which also improves the program. The speed of the preview; in this way, the terminal will automatically play the program in sequence, and each channel plays a fixed time. When previewing to the next channel, you only need to activate the current channel for preview, you do not need to close the last previewed program, which saves the preview time of the program;
  • Step 5 After the user previews the program of each channel, or after encountering the program of interest to them, you can exit the preview mode and select the program you are interested in to play the TV program.
  • Step 6 Exit the mobile TV app and close all related modules.
  • Step 301 The mobile TV initialization is completed, and the loading of the program playlist is completed.
  • Step 302 After loading the program playlist, start multiple services in the background, and the multiple services that are started correspond to all channels of the current program playlist interface;
  • Step 303 The multiple services started in the background start to run, buffer the corresponding channel multimedia data, and wait for the user to play or preview. If the user clicks on the preview, then step 304 is entered; if the user does not click the preview, the service is run in the background, waiting;
  • Step 304 Activate the service currently previewed and play, and immediately start receiving multimedia data of the channel corresponding to the service. Since the service itself is started, this stage saves part of the time, including: time to close a service, The time to start a service and the time that multimedia data needs to be buffered;
  • Step 305 Since the played service has been activated, the multimedia data can be received immediately. Therefore, the time taken by the MTK is also advanced, which is equivalent to reducing the time.
  • the acquired MTK is sent to the authentication module UAM (User Authentication Module) for decryption. After the MTK is successfully decrypted, the MTK acquisition is successful.
  • Step 306 After the MTK is successfully decrypted, the MTK can be used to descramble the multimedia data of the corresponding channel; after the descrambling is completed, the multimedia data is packaged, and after the packaging is completed, the player can be sent to the player;
  • Step 307 After being sent to the player, the player sends the multimedia data to the audio and video device for decoding and playing. Because it is a program preview, it is only necessary to play the I frame in the multimedia data to speed up the preview of the program, and the program preview of one channel is successful. Here, it is required to monitor whether the user chooses to exit the preview mode. If the preview mode is selected, then the process proceeds to step 308, otherwise, the process proceeds to step 30 4, and the program of the next channel is continued to be previewed, and the program of each channel is only previewed for a fixed time;
  • Step 308 Go to the program playlist interface, wait for the user to choose to watch a channel or preview again. If the user chooses to watch a channel, then proceeds to step 309;
  • Step 309 In the viewing mode, the playback process is similar to the program preview process. First activate the currently playing channel, then perform a process similar to the preview process, receive data, decrypt the MTK, descramble the data stream using the decrypted MTK, package the descrambled data stream, and then feed The player plays. Unlike the preview, all video frames need to be played during playback, and the program is continuously played.
  • the above is the method for realizing the MBBM S channel program preview.
  • different numbers of services can be started internally according to different chips to achieve the program preview speed.
  • the above methods can also be applied to other types of mobile TV services, such as CMMB (China Mobile Multimedia Broadcasting, China Mobile Multimedia Broadcasting).
  • a method for playing a mobile TV program includes: after receiving an electronic service guide, buffering multimedia data of each channel according to information of each channel carried therein;
  • the multimedia data of the channel is directly received according to the multimedia data of the channel buffered locally, and then the received multimedia data of the channel is processed and played.
  • the processing the received multimedia data of the channel specifically includes: obtaining a corresponding MTK according to the encrypted field in the received multimedia data of the channel, and then using the obtained The MTK performs descrambling and packet processing on the multimedia data.
  • a system for previewing a mobile TV program is applied to a mobile terminal, including:
  • a buffering module configured to buffer multimedia data of each channel according to information of each channel carried therein after receiving the electronic service guide;
  • the processing module is configured to process the multimedia data buffered to the local channel after receiving the preview program request sent by the user, and then sequentially play the I frame data in the processed multimedia data of each channel.
  • the processing module is configured to process, by using the encrypted field in the multimedia data of the channel buffered to the local area, the processing module is configured to:
  • the program stream key (MTK) of the channel is then descrambled and packaged using the acquired MTK for the multimedia data of the channel.
  • MTK program stream key
  • the system further comprises:
  • a playing module configured to directly receive multimedia data of a channel requested by the user after receiving a program play request sent by the user, and then perform MTK acquisition on the received multimedia data, and use the acquired MTK to perform multimedia on the channel.
  • the data is descrambled and packaged for playback.
  • a system for playing a mobile TV program is applied to a mobile terminal, including:
  • a buffering module configured to buffer multimedia data of each channel according to information of each channel carried therein after receiving the electronic service guide;
  • a processing module configured to: after receiving a request for playing a channel program issued by a user, directly receiving multimedia data of the channel according to the multimedia data of the channel buffered locally, and then processing the received multimedia data of the channel After playing.
  • the processing module is configured to process the received multimedia data of the channel, specifically: the processing module is configured to obtain, according to the received encrypted field in the multimedia data of the channel, The program stream key (MTK), and then descramble and packetize the multimedia data with the obtained ⁇ .
  • the program stream key MTK
  • the embodiment of the present invention uses a method of starting a service in the background, which reduces the time for closing the previous channel and starting the next channel when the channel program is previewed. And it can quickly receive data, and also reduces the waiting time for data. In addition, only the data showing the I frame is played during preview, which greatly reduces the time of channel program preview, thereby improving the performance of the entire mobile TV. Users bring a great experience.

Landscapes

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

Abstract

La présente invention concerne un procédé et un système correspondant de prévisualisation et de lecture d'un programme de télévision mobile. Ledit procédé de prévisualisation est appliqué à un terminal mobile et consiste à : après réception d'un guide de service électronique, mettre en mémoire tampon des données multimédias de chaque canal respectivement selon les informations contenues dans chaque canal du guide électronique de service ; lors de la réception de la demande de prévisualisation de programme qui est envoyée par les utilisateurs, traiter les données multimédias respectivement qui sont mises en mémoire tampon à la position locale ; puis lire des données de trame I des données multimédias traitées de chaque canal de manière séquentielle. La présente invention utilise un procédé de service de démarrage d'arrière-plan qui permet de réduire le temps de fermeture du dernier canal et le temps de démarrage du canal suivant pendant que l'on effectue une prévisualisation du programme de canal. Et les données sont reçues rapidement et le temps d'attente des données est également réduit. Le temps de prévisualisation du programme de canal est ainsi considérablement réduit, car seules les données de trame I sont lues lors de la prévisualisation. Ainsi, la performance générale de télévision mobile s'en trouve améliorée, de même que l'expérience utilisateur.
PCT/CN2011/083962 2011-11-15 2011-12-14 Procédé et système correspondant de prévisualisation et de lecture d'un programme télévision mobile WO2013071666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011103610034A CN103108236A (zh) 2011-11-15 2011-11-15 一种对移动电视节目进行预览和播放的方法及相应系统
CN201110361003.4 2011-11-15

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WO2013071666A1 true WO2013071666A1 (fr) 2013-05-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103428572A (zh) * 2013-07-31 2013-12-04 北京小米科技有限责任公司 一种进行频道预览的方法、装置和系统
CN113127073A (zh) * 2020-01-15 2021-07-16 北京小米移动软件有限公司 控制电子设备的方法、装置及智能设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003003725A1 (fr) * 2001-06-28 2003-01-09 Sony Electronics Inc. Masqueur electronique avec previsualisation video
CN1960483A (zh) * 2006-08-30 2007-05-09 中兴通讯股份有限公司 一种数字多媒体广播中显示节目预览的方法
CN1976430A (zh) * 2006-12-11 2007-06-06 中兴通讯股份有限公司 一种实现在终端对移动多媒体节目进行预览的方法
CN101282472A (zh) * 2008-05-14 2008-10-08 中兴通讯股份有限公司 一种终端及其快速预览手机电视频道方法
CN101483766A (zh) * 2008-12-31 2009-07-15 宇龙计算机通信科技(深圳)有限公司 一种移动电视预览方法、装置移动终端
US20110145862A1 (en) * 2009-12-15 2011-06-16 Electronics And Telecommunications Research Institute Apparatus and method for providing preview channel guide information in digital broadcast network

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003003725A1 (fr) * 2001-06-28 2003-01-09 Sony Electronics Inc. Masqueur electronique avec previsualisation video
CN1960483A (zh) * 2006-08-30 2007-05-09 中兴通讯股份有限公司 一种数字多媒体广播中显示节目预览的方法
CN1976430A (zh) * 2006-12-11 2007-06-06 中兴通讯股份有限公司 一种实现在终端对移动多媒体节目进行预览的方法
CN101282472A (zh) * 2008-05-14 2008-10-08 中兴通讯股份有限公司 一种终端及其快速预览手机电视频道方法
CN101483766A (zh) * 2008-12-31 2009-07-15 宇龙计算机通信科技(深圳)有限公司 一种移动电视预览方法、装置移动终端
US20110145862A1 (en) * 2009-12-15 2011-06-16 Electronics And Telecommunications Research Institute Apparatus and method for providing preview channel guide information in digital broadcast network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103428572A (zh) * 2013-07-31 2013-12-04 北京小米科技有限责任公司 一种进行频道预览的方法、装置和系统
CN113127073A (zh) * 2020-01-15 2021-07-16 北京小米移动软件有限公司 控制电子设备的方法、装置及智能设备

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