WO2016049871A1 - Method and device for parental control in audiovisual and multimedia systems - Google Patents
Method and device for parental control in audiovisual and multimedia systems Download PDFInfo
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- WO2016049871A1 WO2016049871A1 PCT/CN2014/087980 CN2014087980W WO2016049871A1 WO 2016049871 A1 WO2016049871 A1 WO 2016049871A1 CN 2014087980 W CN2014087980 W CN 2014087980W WO 2016049871 A1 WO2016049871 A1 WO 2016049871A1
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23605—Creation or processing of packetized elementary streams [PES]
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
- H04N21/4542—Blocking scenes or portions of the received content, e.g. censoring scenes
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
Definitions
- the present invention relates to a method and a device for parental control in audiovisual and multimedia systems, and more particularly related to a method and a device for parental control in audiovisual and multimedia systems using PES header.
- parental control is implementedby using a parental rating descriptor specified under the MPEG-2 standard.
- This parental rating descriptor including in a parental rating table is used to control program viewing on an event level.
- the parental rating table is carried by EIT (Event Information Table) in DVB (Digital Video Broadcasting) or ATSC (Advanced Television Systems Committee) system.
- embodiments of the present invention may provide a novel and useful digital video broadcasting network system and a method of obtaining program information in digital video broadcasting solving one or more of the problems discussed above.
- the embodiments of the present invention may provide a digital video broadcasting network system and a method of obtaining program information in digital video broadcasting that can directly obtain necessary information from a memory of a client device without filtering and analyzing a SI table sent from a SI (DVB or ATSC system) server.
- SI digital video broadcasting network system
- a method of obtaining program information in digital video broadcasting that can directly obtain necessary information from a memory of a client device without filtering and analyzing a SI table sent from a SI (DVB or ATSC system) server.
- adevice for implement parental control of a program in an encoding side comprising: an encoder for encoding video data and audio data of a program into an elementary stream; a packetizer for packetizing the elementary stream into PES (Packetized Elementary Stream) , wherein parental rating information is included in PES header; and a multiplexer for multiplexing the PES into at least one of program stream and transport stream.
- PES Packetized Elementary Stream
- a devicefor implement parental control of a program in a decoding side comprising: a demultiplexer for demultiplexing program stream or transport stream including encoded data of a program into PES (Packetized Elementary Stream) to acquire parental rating information from PES header; and a decoder for decoding audio data and video data of the PES and a means for determining if the program is going to be displayed on the basis of the parental rating information.
- PES Packetized Elementary Stream
- PES Packetized Elementary Stream
- a methodto implement parental control of a program in a decoding side comprising: demultiplexing a program stream or transport stream including encoded data of the program into PES (Packetized Elementary Stream) ; acquiring parental rating information from PES header; decoding audio data and video data of the PES; anddetermining if the program is going to be displayed on the basis of the parental rating information.
- PES Packetized Elementary Stream
- FIG. 1 is a software block diagram according to an embodiment of the present invention
- FIG. 2 is a hardware block diagram illustrating encoder according to an embodiment of the present invention
- FIG. 3 is a hardware block diagram illustrating decoder according to an embodiment of the present invention.
- FIG. 4 is a sequence diagram for explaining how toimplement parental control of a program in anencoding sideaccording to an embodiment of the present invention.
- FIG. 5 is a sequence diagram for explaining how to implement parental control of a program in a decoding side according to an embodiment of the present invention.
- the parental rating information is defined in PES(Packetized Elementary Stream) header when PES stream is generated, or streams from other program vendors are re-multiplexed. If adecoder driverdetects there is a parental rating information change (from the status in which parental rating is not presented in PES header to the status in which it is presented in PES header, or from the status in which parental rating is presented in PES header to the status in which it is not presented, or parental rating value is updated ) , it can notify a parental rating changed event to upper software componentsuch as UI application, like the notification of PTS (Presentation Time Stamp) , then the upper software component can compare it with the decoder’s parental control configuration to decide whether the program can be played.
- the parental rating information can also be defined in PES header when the program from other content vendor is transmitted, or when the program in PES or TS format is recorded, or the program betweenTransport Streams and Program Streams is converted.
- the parental rating information will be got before decoding AV data, and then we can avoid the unexpected display completely. Further, if the parental rating information is defined in PES header, the information can easy remain when the program from other content vendor is transmitted, and when the program is recorded in TS format or PES format. Since Transport Stream and Program Stream are each logically constructed from PES packets, parental rating information can also remain when the stream format is converted between Transport Stream and Program Stream.
- Semantic definitions of fields which marked in italic type are as follows (for other fields, refer to the PES definition which described in specification iso13818-1) :
- PES_extension_flag value is 1, indicates that an extension field exists in this PES packet header.
- PES_extension_flag_2 value is 1, to indicate there is parental rating information.
- marker_bit value is 1, as the specification requirement.
- PES_extension_field_length value is 1, to indicate the length of parental rating field is 1byte.
- parental rating same definition as with rating field of parental rating descriptor. 0x00, undefined; 0x01-0x0F, minimum+3years, so 0x01-0x0F represents a range from age (0x01+3) to age (0x0F+3) ; 0x10-0xff, defined by the operator.
- Semantic definitions of fields which marked in italic type are as follows (for other fields, refer to the PES definition which described in specification iso13818-1) :
- parental_control_indicator a 1-bit flag, when set to '1' , it indicates the presence of the parental_rating field. When set to '0' , it indicates that this field is not presented.
- parental_rating same definition as rating field of parental rating descriptor. 0x00, undefined; 0x01-0x0F, minimum+3years, so 0x01-0x0F represents a range from age (0x01+3) to age (0x0F+3) ; 0x10-0xff, defined by the operator.
- FIG. 1 is a software block diagram according to an embodiment of the present invention.
- the application 101 is executed by driver 102 via operating system (OS) 103andhardware platform 105.
- the operating system (OS) 103 and hardware platform 105 manages hardware and software resourcesto function.
- middleware 107, CA 109, adaption layer 111, and option drivers can be included in the system.
- the middleware 107 is the software layer that lies between the operating system, hardware platform driver and application, it integrates and abstracts all lower layer features to support the application and reach the effect to cross the operating system and hardware.
- the CA 109 is the condition access system to scramble/descramble AV data and other data.
- the adaption layer 111 is the encapsulation of hardware platform driver and operating system, to supports the upper components, i. e. middleware and CA if they are present, or Application if the middleware and CA are not present.
- the option Drivers 113 are not the necessary component for decoder prototype, but they are used on most of decoder.
- FIG. 2 is a hardware block diagram illustrating encoder according to an embodiment of the present invention.
- Video data and audio data are sent to a video encoder 201 and an audio encoder 203, respectively.
- the video encoder 201 and the audio encoder 203 encode the video data and audio data into elementary stream.
- the elementary streams are packetized to generate PES stream in the packetizer 205, 207.
- the parental rating information is defined in PES header.
- Both of video PES and audio PES are multiplexed in each of TS Mux 209 and PS Mux 211 to generate TS stream and PS stream.
- the parental rating information is also defined in PES header when the streams from other program vendors are re-multiplexed.
- FIG. 3 is a hardware block diagram illustrating decoder according to an embodiment of the present invention.
- Channel specified decoder 301 specifies channel to decode.
- CPU 303 includes TS demultiplexer or PS decoder 305, video decoder 307, audio decoder 309, and clock control 311.
- TS stream or PS stream sends to the TS demultiplexer or PS decoder 305.
- the demultiplexer305 demultiplexes Program stream or Transport stream including encoded data of a program into PES (Packetized Elementary Stream) to acquire parental rating information from PES header.
- PES Packetized Elementary Stream
- the resulting streams send to the video decoder 307, the clock control 311, and the audio decoder 309.
- DDR 313 is the RAM memory, it is the abbreviation of Double Data Rate Synchronous Dynamic Random Access Memory.
- Persistent device 315 is Non-Volatile Random Access Memory for save the configuration parameters to avoid the data losing after power down, such as flash device, EEPROM (Electrically Erasable Programmable Read-Only Memory) device.
- HDD 317 is the Hard Disk as an option.
- FIG. 4 is a sequence diagram for explaining how to implement parental control of a program in an encoding side according to an embodiment of the present invention.
- a procedure starts.
- video encoder and audio encoder receive video data and audio data of a program.
- the video encoder and audio encoder encode the video data and audio data into elementary stream.
- parental rating information is defined in PES (Packetized Elementary Stream) header upon packetizing the elementary stream into PES.
- multiplexer multiplexes the PES into at least one of Program stream or Transport stream. The multiplexer also re-multiplexes steam from other program vender.
- the procedure ends.
- FIG. 5 is a sequence diagram for explaining how to implement parental control of a programin a decoding side according to an embodiment of the present invention.
- a procedure starts.
- Program stream or Transport stream including encoded data of the program is demultiplexed into PES (Packetized Elementary Stream) .
- parental rating information is acquiredfrom PES header.
- audio data and video data of the PES is decoded.
- a decision whether the program is going to be displayed is determined on the basis of the parental rating information.
- the procedure ends. In addition, if a driver of a decoder detects any change of the parental rating information, it notifies the changed event of the parental control information to an upper software component. Then, the upper software componentcompares it with decoder’s parental control configuration to determine if the program can be displayed.
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Abstract
A device for implement parental control of a program in an encoding side, comprising: an encoder (201, 203) for encoding video data and audio data of a program into an elementary stream; a packetizer (205, 207) for packetizing the elementary stream into PES (Packetized Elementary Stream), wherein parental rating information is included in PES header; and a multiplexer (209, 211) for multiplexing the PES into at least one of program stream and transport stream.
Description
The present invention relates to a method and a device for parental control in audiovisual and multimedia systems, and more particularly related to a method and a device for parental control in audiovisual and multimedia systems using PES header.
BACKGROUND ART
In digital video broadcasts, parental control is implementedby using a parental rating descriptor specified under the MPEG-2 standard. This parental rating descriptor including in a parental rating table is used to control program viewing on an event level. The parental rating table is carried by EIT (Event Information Table) in DVB (Digital Video Broadcasting) or ATSC (Advanced Television Systems Committee) system.
However, the implementation is not entirely satisfactory because of possible timing mismatch between receipt of the parental rating descriptor and audio video decoding. For example, under certain circumstances, some audio-video frames may have already been shown unexpectedly before the parental rate descriptor is received, or play is blockeduntil parental rating table receiving. Some STB (Set Top Box) might play the AV immediately before receiving parental rating table; andsome STB might block the play until receiving parental rating table, even if no parental rating table is broadcasted in the network. There is no solution to this problem using the existing specification.
In digital video broadcasts, most of programs are provided by other content vendors, not manufactured by network operators, thus, network operators need the additional work to add the
parental rating descriptor to adapt the controlled program. In digital video broadcasts, if the programs are recorded into hard disk, the parental rating information will be lost, unless the parental rating information isalso individual recorded. IfTransport Stream is converted into program stream formatsuch as DVD disk, the parental rating information will also be lost. There is no solution to this problem using the existing specification.
SUMMARY
Accordingly, embodiments of the present invention may provide a novel and useful digital video broadcasting network system and a method of obtaining program information in digital video broadcasting solving one or more of the problems discussed above.
More specifically, the embodiments of the present invention may provide a digital video broadcasting network system and a method of obtaining program information in digital video broadcasting that can directly obtain necessary information from a memory of a client device without filtering and analyzing a SI table sent from a SI (DVB or ATSC system) server.
According to an embodiment of the present invention, there is providedadevice for implement parental control of a program in an encoding side, comprising: an encoder for encoding video data and audio data of a program into an elementary stream; a packetizer for packetizing the elementary stream into PES (Packetized Elementary Stream) , wherein parental rating information is included in PES header; anda multiplexer for multiplexing the PES into at least one of program stream and transport stream.
According to an embodiment of the present invention, there is provideda devicefor implement parental control of a program
in a decoding side, comprising: a demultiplexer for demultiplexing program stream or transport stream including encoded data of a program into PES (Packetized Elementary Stream) to acquire parental rating information from PES header; anda decoder for decoding audio data and video data of the PES and a means for determining if the program is going to be displayed on the basis of the parental rating information.
According to an embodiment of the present invention, there is provideda methodcomprising: receiving video data and audio data of the program; encoding the video data and audio data into an elementary stream; defining parental rating information in PES (Packetized Elementary Stream) header upon packetizing the elementary stream into PES; andmultiplexing the PES into at least one of program stream and transport stream.
According to an embodiment of the present invention, there is provideda methodto implement parental control of a program in a decoding side, the method comprising: demultiplexing a program stream or transport stream including encoded data of the program into PES (Packetized Elementary Stream) ; acquiring parental rating information from PES header; decoding audio data and video data of the PES; anddetermining if the program is going to be displayed on the basis of the parental rating information.
FIG. 1 is a software block diagram according to an embodiment of the present invention;
FIG. 2 is a hardware block diagram illustrating encoder according to an embodiment of the present invention;
FIG. 3 is a hardware block diagram illustrating decoder according to an embodiment of the present invention;
FIG. 4 is a sequence diagram for explaining how toimplement parental control of a program in anencoding
sideaccording to an embodiment of the present invention; and
FIG. 5 is a sequence diagram for explaining how to implement parental control of a program in a decoding side according to an embodiment of the present invention.
DESCRIPTION OF EMBODIMENT
A description is given below of embodiments of the present invention, with reference to the drawings.
The parental rating information is defined in PES(Packetized Elementary Stream) header when PES stream is generated, or streams from other program vendors are re-multiplexed. If adecoder driverdetects there is a parental rating information change (from the status in which parental rating is not presented in PES header to the status in which it is presented in PES header, or from the status in which parental rating is presented in PES header to the status in which it is not presented, or parental rating value is updated ) , it can notify a parental rating changed event to upper software componentsuch as UI application, like the notification of PTS (Presentation Time Stamp) , then the upper software component can compare it with the decoder’s parental control configuration to decide whether the program can be played. The parental rating information can also be defined in PES header when the program from other content vendor is transmitted, or when the program in PES or TS format is recorded, or the program betweenTransport Streams and Program Streams is converted.
If the parental rating information is defined into PESheader, the parental rating information will be got before
decoding AV data, and then we can avoid the unexpected display completely. Further, if the parental rating information is defined in PES header, the information can easy remain when the program from other content vendor is transmitted, and when the program is recorded in TS format or PES format. Since Transport Stream and Program Stream are each logically constructed from PES packets, parental rating information can also remain when the stream format is converted between Transport Stream and Program Stream.
There are two ways to define the parental rating information in PES header:
1. Utilize current PES specification to define the parental rating in PES header. Syntax below marked in italic typeis only an example; and the parental rating information is possible presented in other field of the PES header.
Table 1-1 - PES packet
Semantic definitions of fields which marked in italic type are as follows (for other fields, refer to the PES definition which described in specification iso13818-1) :
PES_extension_flag: value is 1, indicates that an extension field exists in this PES packet header.
PES_extension_flag_2: value is 1, to indicate there is parental rating information.
marker_bit: value is 1, as the specification requirement.
PES_extension_field_length: value is 1, to indicate the length of parental rating field is 1byte.
parental rating: same definition as with rating field of parental rating descriptor. 0x00, undefined; 0x01-0x0F, minimum+3years, so 0x01-0x0F represents a range from age (0x01+3) to age (0x0F+3) ; 0x10-0xff, defined by the operator.
2.In the future, if the PES Syntax definition needsto be re-designed, or replace it with other Syntax structures. “Parental_control_indicator” is recommended to add or replace other indicators, which is similar to the additional copyright information definition which described in current PES Syntax. Table below is an example to add the parental_control_indicator. The new definition is marked in italic type.
1. Table 1-1 - PES packet
Semantic definitions of fields which marked in italic type are as follows (for other fields, refer to the PES definition which described in specification iso13818-1) :
parental_control_indicator: a 1-bit flag, when set to '1' , it indicates the presence of the parental_rating field. When set to '0' , it indicates that this field is not presented.
parental_rating: same definition as rating field of parental rating descriptor. 0x00, undefined; 0x01-0x0F, minimum+3years, so 0x01-0x0F represents a range from age (0x01+3) to age (0x0F+3) ; 0x10-0xff, defined by the operator.
FIG. 1 is a software block diagram according to an embodiment of the present invention. As shown in FIG 1, the application 101 is executed by driver 102 via operating system (OS) 103andhardware platform 105. The operating system (OS) 103 and hardware platform 105manages hardware and software resourcesto function. As an option, middleware 107, CA 109, adaption layer 111, and option drivers can be included in the system. The middleware 107 is the software layer that lies between the operating system, hardware platform driver and application, it integrates and abstracts all lower layer features to support the application and reach the effect to cross the operating system and hardware. The CA 109 is the condition access system to scramble/descramble AV data and other data. The adaption layer 111 is the encapsulation of hardware platform driver and operating system, to supports the upper components, i. e. middleware and CA if they are present, or Application if the middleware and CA are not present. The option Drivers 113 are not the necessary component for decoder
prototype, but they are used on most of decoder.
FIG. 2 is a hardware block diagram illustrating encoder according to an embodiment of the present invention. Video data and audio data are sent to a video encoder 201 and an audio encoder 203, respectively. The video encoder 201 and the audio encoder 203 encode the video data and audio data into elementary stream. The elementary streams are packetized to generate PES stream in the packetizer 205, 207. In this procedure, the parental rating information is defined in PES header. Both of video PES and audio PES are multiplexed in each of TS Mux 209 and PS Mux 211 to generate TS stream and PS stream. The parental rating information is also defined in PES header when the streams from other program vendors are re-multiplexed.
FIG. 3 is a hardware block diagram illustrating decoder according to an embodiment of the present invention. Channel specified decoder 301 specifies channel to decode. CPU 303 includes TS demultiplexer or PS decoder 305, video decoder 307, audio decoder 309, and clock control 311. TS stream or PS stream sends to the TS demultiplexer or PS decoder 305. The demultiplexer305 demultiplexes Program stream or Transport stream including encoded data of a program into PES (Packetized Elementary Stream) to acquire parental rating information from PES header. The resulting streams send to the video decoder 307, the clock control 311, and the audio decoder 309. Since the parental rating information has been acquired before decoding video and audio data, the unexpected display can be avoided completely. The CPU 303 determines if the program is going to be displayed on the basis of the parental rating information. DDR 313 is the RAM memory, it is the abbreviation of Double Data Rate Synchronous Dynamic Random Access Memory. Persistent device 315 is Non-Volatile Random Access Memory for save the configuration parameters to avoid the data losing after power
down, such as flash device, EEPROM (Electrically Erasable Programmable Read-Only Memory) device. HDD 317 is the Hard Disk as an option.
FIG. 4 is a sequence diagram for explaining how to implement parental control of a program in an encoding side according to an embodiment of the present invention. At step 401, a procedure starts. At step 403, video encoder and audio encoder receive video data and audio data of a program. At step 405, the video encoder and audio encoder encode the video data and audio data into elementary stream. At step 407, parental rating information is defined in PES (Packetized Elementary Stream) header upon packetizing the elementary stream into PES. At step 409, multiplexer multiplexes the PES into at least one of Program stream or Transport stream. The multiplexer also re-multiplexes steam from other program vender. At step 411, the procedure ends.
FIG. 5 is a sequence diagram for explaining how to implement parental control of a programin a decoding side according to an embodiment of the present invention. At step 501, a procedure starts. At step 503, Program stream or Transport stream including encoded data of the program is demultiplexed into PES (Packetized Elementary Stream) . At step 505, parental rating information is acquiredfrom PES header. At step 507, audio data and video data of the PES is decoded. At step 509, a decision whether the program is going to be displayed is determined on the basis of the parental rating information. At step 511, the procedure ends. In addition, if a driver of a decoder detects any change of the parental rating information, it notifies the changed event of the parental control information to an upper software component. Then, the upper software componentcompares it with decoder’s parental control configuration to determine if the program can be displayed.
All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions, nor does the organization of such examples in the specification relate to a showing of superiority or inferiority of the invention. Although the embodiments of the present invention have been described in detail, it should be understood that various changes, substitutions, and alterations could be made hereto without departing from the spirit and scope of the invention.
Claims (8)
- A device for implement parental control of a program in an encoding side, comprising:an encoder for encoding video data and audio dataof a program into an elementary stream;a packetizer for packetizing the elementary stream into PES (Packetized Elementary Stream) , wherein parental rating information is includedin PES header; andamultiplexerfor multiplexing the PES into at least one of program stream andtransport stream.
- The device as claimed in claim 1, wherein the multiplexer further re-multiplexes steam from other program vender.
- Adevice for implement parental control of a program in a decoding side, comprising:a demultiplexer for demultiplexing program stream or transport stream including encoded data of a program into PES (Packetized Elementary Stream) to acquire parental rating information from PES header; andadecoder fordecoding audio data and video data of the PES; anda means for determining if the program is going to be displayed on the basis of the parental rating information.
- The device as claimed in claim 4, whereinif a driver of the decoder detects any change of the parental rating information, the drivernotifies the changed event of the parental rating information to anupper software component, and the upper software component consequently compares it with decoder’s parental control configuration to determining if the program is going to be displayed.
- A method to implement parental control of a program in an encoding side, the method comprising:receivingvideo data and audio data of the program;encoding the video data and audio data into an elementary stream;defining parental rating information in PES (Packetized Elementary Stream) header upon packetizing the elementary stream into PES; andmultiplexing the PES into at least one of program stream and transport stream.
- The method as claimed in claim 5, further comprising: re-multiplexing steam from other program vender.
- A method to implement parental control of a program in a decoding side, the method comprising:Demultiplexing a program stream or transport stream including encoded data of the program into PES (Packetized Elementary Stream) ;acquiring parental rating information from PES header;decodingaudio data and video data of the PES; anddetermining if the program is going to be displayed on the basis of the parental rating information.
- The method as claimed in claim 7, further comprisingif a driver of the decoder detects any change of the parental rating information, notifyingby the driver the changed event of the parental control information to an upper software component; comparing it with decoder’s parental control configuration by the upper software component to determineif the program is going to be displayed.
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PCT/CN2014/087980 WO2016049871A1 (en) | 2014-09-30 | 2014-09-30 | Method and device for parental control in audiovisual and multimedia systems |
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