WO2012050405A2 - 디지털 수신기 및 디지털 수신기에서의 3d 컨텐트 처리방법 - Google Patents
디지털 수신기 및 디지털 수신기에서의 3d 컨텐트 처리방법 Download PDFInfo
- Publication number
- WO2012050405A2 WO2012050405A2 PCT/KR2011/007700 KR2011007700W WO2012050405A2 WO 2012050405 A2 WO2012050405 A2 WO 2012050405A2 KR 2011007700 W KR2011007700 W KR 2011007700W WO 2012050405 A2 WO2012050405 A2 WO 2012050405A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- information
- picture
- pvr
- video
- field
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/178—Metadata, e.g. disparity information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/189—Recording image signals; Reproducing recorded image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/194—Transmission of image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
-
- 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
-
- 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
- H04N21/241—Operating system [OS] processes, e.g. server setup
-
- 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
- H04N21/4147—PVR [Personal Video Recorder]
-
- 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
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Definitions
- the present invention relates to a digital receiver and a processing method thereof, and more particularly, to a digital receiver and a processing method related to the processing of 3-dimensional (hereinafter referred to as '3D') content.
- the digital receiver may include a personal video recorder (PVR), and the PVR may store, play, or process 3D content.
- PVR personal video recorder
- the digital receiver should be able to process the content appropriately to reflect this reality.
- the present invention is to solve the above-described problem, in the present invention, in processing the 3D content in the digital receiver having a PVR, in the process of the 2D / 3D conversion, view switching (view switching), etc.
- An object of the present invention is to provide a digital receiver and a content processing method in the digital receiver.
- the present invention relates to a digital receiver and a method for processing contents in a digital receiver capable of supporting an effective PVR function for a 3D stream for full resolution per eye, which is not frame-compatible. It is another subject to offer.
- the present specification proposes the following technical solution in order to solve the above technical problem.
- An example of a method of processing a digital broadcast signal for a 3D service includes: receiving system information including a 3D video elementary stream and 3D PVR support information of the 3D video elementary stream; Adding and storing a time-stamp to the 3D video elementary stream; Storing an index file including information for performing a 3D PVR function of the 3D video elementary stream extracted from the 3D PVR support information; Decoding the stored 3D video elementary stream based on at least one of an index file and a time-stamp value; And formatting and outputting the decoded 3D video data according to an output format.
- the 3D video elementary stream may be a dual video stream including a base layer video stream and an enhancement layer video stream.
- the 3D PVR support information may include information (Picture_start_end) indicating whether a corresponding transport stream packet includes a starting point or an ending point of each video picture, and indicating whether the video elementary stream included in the corresponding transport stream packet is a RAP. Information, information indicating whether the picture is a base layer or an extended layer in relation to a coding scheme, and information indicating whether the picture is a left view or a light view.
- the 3D PVR support information includes frame information indicating a number sequentially assigned to each picture on the basis of the first picture of the program, and frame type information identifying whether the reference of the frame information is in order of decoding or order of display. It may further include.
- the frame information is independently numbered in units of a base / extend layer and left / right, and a picture pair having the same number may exist for the base / extend or left / right.
- the 3D PVR support information further includes speed information, wherein the speed information includes information indicating whether 2D normal speed playback is possible using a picture, information indicating whether 3D normal speed playback is possible using a picture, It may include information indicating whether n times speed reproduction is possible in the 2D mode using the picture and information indicating whether n times speed reproduction is possible in the 3D mode using the picture.
- the 3D PVR support information may be included in the adaptation_field of the transport stream packet including the first byte or the last byte of all pictures among the transport stream packets corresponding to the 3D or 2D program.
- the 3D PVR support information may be transmitted through a private data byte of the adaptation_field.
- system information further includes identification information for identifying whether the 3D PVR support information is present, wherein the identification information is any one of PMT of PSI, TVCT or / and EIT of PSIP and SDT or / and EIT of DVB. It can be included in the transmission.
- An example of a digital receiver for a 3D service includes a receiver for receiving system information including 3D video elementary streams and 3D PVR support information of the 3D video elementary streams; A download module for adding a time-stamp to a 3D video elementary stream and for configuring and storing an index file including information for performing a 3D PVR function of the 3D elementary stream extracted from the 3D PVR support information; and a stored 3D video.
- a PVR module including an upload module for uploading an elementary stream based on at least one of an index file and a time-stamp value; A decoder for decoding the uploaded 3D video elementary stream; A formatter for formatting the decoded 3D video data according to an output format; And an output unit for outputting formatted 3D video data.
- the PVR module the index file, picture type information indicating whether or not L / R, whether the base / enhancement layer, RAP for the packet, picture number information for the picture number, logic in the storage unit or And at least one of address information indicating a physical address and size information indicating a size of a corresponding picture.
- the 3D video elementary stream may be a dual video stream including a base layer video stream and an enhancement layer video stream.
- the 3D PVR support information may include information (Picture_start_end) indicating whether a corresponding transport stream packet includes a starting point or an ending point of each video picture, and indicating whether the video elementary stream included in the corresponding transport stream packet is a RAP. Information, information indicating whether the picture is a base layer or an extended layer in relation to a coding scheme, and information indicating whether the picture is a left view or a light view.
- the 3D PVR support information includes frame information indicating a number sequentially assigned to each picture on the basis of the first picture of the program, and frame type information identifying whether the reference of the frame information is in order of decoding or order of display. It may further include.
- the frame information is independently numbered in units of a base / extend layer and left / right, and a picture pair having the same number may exist for the base / extend or left / right.
- the 3D PVR support information further includes speed information, wherein the speed information includes information indicating whether 2D normal speed playback is possible using a picture, information indicating whether 3D normal speed playback is possible using a picture, It may include information indicating whether n times speed reproduction is possible in the 2D mode using the picture and information indicating whether n times speed reproduction is possible in the 3D mode using the picture.
- the 3D PVR support information is included in the adaptation_field of the transport stream packet including the first byte or the last byte of all pictures among the transport stream packets corresponding to the 3D or 2D program, and is provided through a private data byte of the adaptation_field. Can be sent.
- system information further includes identification information for identifying whether the 3D PVR support information is present, wherein the identification information is any one of PMT of PSI, TVCT or / and EIT of PSIP and SDT or / and EIT of DVB. It can be included in the transmission.
- the digital receiver can provide various functions of the PVR for 3D content.
- FIG. 1 is a block diagram illustrating an example of a configuration of a digital receiver including a 3D PVR module according to the present invention
- FIG. 2 is a block diagram illustrating an example of configuration of a 3D PVR module of FIG. 1;
- 3 is a diagram illustrating an example of 3D_PVR_Information_byte () bitstream syntax according to the present invention
- FIG. 4 is a diagram illustrating an example of a PMT table section bitstream syntax including PVR support information according to the present invention
- FIG. 5 is a diagram illustrating an example of an adaptation_field_data_descriptor bitstream syntax according to the present invention
- FIG. 6 is a diagram illustrating an example of adaptation_field_data_identifier of FIG. 5;
- FIG. 7 is a view illustrating an example of adaptation_field of an MPEG-2 transport stream packet including 3D PVR support information according to the present invention
- FIG. 8 is a view illustrating an example of a TVCT table section bitstream syntax including PVR support information according to the present invention
- FIG. 9 is a diagram illustrating an example of a channel_level_descriptor bitstream syntax according to the present invention.
- FIG. 10 is a view illustrating an example of an EIT table section bitstream syntax including PVR support information according to the present invention
- FIG. 11 is a diagram illustrating an example of a service description table (SDT) table section bitstream syntax including PVR support information according to the present invention
- FIG. 12 is a view illustrating another example of an EIT table section bitstream syntax including PVR support information according to the present invention.
- FIG. 13 is a block diagram illustrating an example of a configuration of a download module 212 included in the 3D PVR module 110 of FIG. 2.
- 14 to 16 are diagrams for explaining an example of implementing a time stamp insertion in a download module according to the present invention.
- 17 is a view illustrating an example of a time stamp index data structure when using a time stamp according to the present invention.
- FIG. 18 is a view illustrating an example of an index configuration in the download module 212 according to the present invention.
- 19 is a conceptual diagram illustrating a concept of a prediction chain for fast play support according to the present invention.
- 20 is a diagram illustrating an example of configuration of a packet and storage device address mapping information for picture data stored according to the present invention
- FIG. 21 is a diagram illustrating an example of configuration of a fast play command chain table for supporting a fast play mode according to the present invention.
- FIG. 22 is a view illustrating an example of an index file structure for performing a 3D PVR function using the above-described information of FIGS. 19 to 21 according to the present invention
- FIG. 23 is a block diagram illustrating an example of a configuration of an upload module 218 included in the 3D PVR module of FIG. 2 according to the present invention.
- 24 is a flowchart illustrating an example of an operation of a receiver during 2D / 3D recording according to the present invention
- 25 is a flowchart illustrating an example of an operation of a receiver during 2D mode playback according to the present invention
- 26 is a flowchart illustrating an example of an operation of a receiver when reproducing a 3D mode according to the present invention
- FIG. 27 is a flowchart illustrating an example of an operation of a receiver when a view switching request is performed according to the present invention.
- module and “unit” for components used in the following description are merely given in consideration of ease of preparation of the present specification, and the “module” and “unit” may be used interchangeably with each other.
- the present invention relates to a digital receiver capable of outputting three-dimensional (3D) content.
- the digital receiver includes a personal video recorder (PVR), and various types of the PVR.
- PVR personal video recorder
- An apparatus and method for processing a function to be applicable to 3D content For example, in the present specification, 3D content is stored, played, and processed through the PVR of the digital receiver according to the present invention, and various functions of the PVR such as 2D / 3D switching and view switching are performed in the process. You can process the content so that it can.
- 3D content is included in a digital broadcast signal and transmitted to a digital receiver, wherein the digital broadcast signal is one of a frame-compatible system and a full resolution per eye system.
- the digital broadcast signal is one of a frame-compatible system and a full resolution per eye system.
- the latter ie, the case for the full resolution fur eye system
- the scope of the present invention is not limited to the full resolution fur eye, and it will be apparent that the same applies to the frame-compatible system as well as other systems related to the present invention on the same or similar principle.
- the frame-compatible system is a system that reuses a conventional structure as it is when recording digital 3D content through a PVR in a digital receiver.
- a full resolution fur eye system based on dual video elementary stream (ES) such as Multiview Video Coding (MVC), Scalable Video Coding (SVC), Dual Codec, etc. It's hard to effectively handle storage, playback, time-shifting, and so on for content.
- MVC Multiview Video Coding
- SVC Scalable Video Coding
- Dual Codec Dual Codec
- the present specification defines and describes methods such as time-stamp, PVR indexing, thumbnail extraction, and the like for providing 3D services according to the present invention.
- FIG. 1 is a block diagram illustrating an example of a digital receiver configuration including a 3D PVR module according to the present invention.
- an example of a digital receiver includes a receiving part 102, a VSB decoder 104, an input switch part 106, and a system decoder / demultiplexer. (System Decoder / Demux) 108, the 3D PVR module 110, the storage device 111, the video decoder 112, the view switching unit / 2D output unit 114 and the formatter unit 116 Include.
- System Decoder / Demux System Decoder / Demux
- the digital receiver is not shown in the configuration of FIG. 1, but is a receiver set (SET) including a display device or a display unit (hereinafter, a 'display device') or the configuration of FIG. 1 is a set-top box (STB).
- the display device may be implemented in the form of a box) and connected to a display device through an interface.
- the interface may be an HDMI (High Definition Multimedia Interface) interface between the set-top box (STB) and the display device.
- an HDMI interface unit (not shown) may be provided in both devices.
- the 3D signaling method defined in the HDMI standard may be applied to use HDMI. Therefore, even in the latter case, the 3D content processed for performing the PVR function in the set-top box may be output from the display device without a problem.
- each component block shown in FIG. 1 may be modularized and merged according to a system, or may be divided into individual components.
- the system decoder / demultiplexing is illustrated and described as one configuration for convenience.
- FIG. 2 to be described later the two configurations are separately described for clarity.
- the receiver 102 includes, for example, a tuner and a demodulator to tune a Radio Frequency (RF) channel and to receive and demodulate a digital signal through the tuned channel.
- the digital signal is a Moving Picture Experts Group-2 (MPEG-2) transport stream, which is signaled for the processing of the audio or video in audio, video and digital receivers.
- MPEG-2 Moving Picture Experts Group-2
- ES Elementary Streams including the information to include packetized ESs.
- the video stream may be, for example, a single video elementary stream, and includes a base layer and an enhancement layer. It may be a dual video elementary stream configured with an enhancement layer.
- a configuration such as a scaler (not shown) may be further required.
- the video decoder to be described later decodes, for example, one video decoder and an enhancement layer video stream for decoding the base layer video elementary stream.
- the video decoder to be described later decodes, for example, one video decoder and an enhancement layer video stream for decoding the base layer video elementary stream.
- at least two video decoders are required.
- a plurality of enhancement layer video streams may be provided for proper decoding corresponding to various coding schemes. As described above, in particular, a case of processing the latter dual video elementary stream will be described as an embodiment.
- SI System Information or Service Information
- PSI Program Specific Information
- PSIP Program and System Information Protocol
- DVB-SI Digital Video Broadcasting-Service Information
- a network information table (NIT), a service description table (SDT), an event information table (EIT), a program association table (PAT), a program map table (PMT), etc.
- NIT network information table
- SDT service description table
- EIT event information table
- PAT program association table
- PMT program map table
- the transport stream transmitted through 3D information and various descriptors belonging to the tables, Supplemental Enhancement Information message, or additional SEI message in the video stream is 3D.
- signaling information about identification information, video format information, codec information, presence or absence of a sub-title, identification information, 2D / 3D linkage information, etc.
- the digital receiver may further include, for example, a signaling information processor and an associated database.
- system decoder 108 may instead perform a function of the signaling information processor.
- contents of definitions, functions, and the like of related tables and descriptors are available in the content processing process of the digital receiver and the digital receiver of the present invention.
- the VSB decoder 104 performs VSB decoding on the demodulated digital signal.
- the VSB method is illustrated for convenience, but the present invention is not limited thereto, and methods such as quadrature amplitude-modulation (QAM) and quadrature phase-shift keying (QPSK) may be used.
- QAM quadrature amplitude-modulation
- QPSK quadrature phase-shift keying
- the input switch unit 106 switches a transport stream (TS) input to the system decoder 108, and, in the case of PVR playback, a storage device (via an upload module) to be described later.
- TS transport stream
- Stored content input from the 111 is output to the system decoder 108, and when viewing live, a transport packet (received through an RF input, a receiver 102, a VSB decoder 104, etc.) transport packet) to the system decoder 108.
- the system decoder 108 either decodes the incoming transport stream or decodes a transport packet regarding the stored content transmitted from the 3D PVR module 112. In addition, when the PVR mode is requested, the system decoder 108 controls the demultiplexer so that the demultiplexed video elementary stream is transmitted to the 3D PVR module 110. The system decoder 108 also sends a transport packet for the decoded transport stream or stored content to the video decoder 112. In addition, the system decoder 108 may also perform a function of a controller that decodes information necessary for the digital receiver and controls system-wide control.
- the demultiplexer demultiplexes various elementary streams including audio, video, and signaling information from the decoded transport stream.
- the demultiplexed video elementary streams are transmitted to the 3D PVR module 110.
- video data passing through the system decoder 108 may bypass demultiplexing and be transmitted to the video decoder 112.
- the 3D PVR module 110 receives the transport packets for the video elementary stream input through the system decoder / demultiplexer 108 to process and process the PVR mode operation, and during playback, the input switch unit ( And transmits the processed and processed transport packets. Detailed configuration and function of the 3D PVR module 110 will be described later and will be omitted herein.
- the video decoder 112 decodes the video data processed by the system decoder / demultiplexer 108.
- the video decoder 112 may, for example, decode the video data based on the demultiplexed signaling information in the demultiplexer.
- the video decoder 112 transmits the decoded 2D video data to the view switching / 2D output unit 114, and outputs the decoded 3D video data to the formatter unit 116.
- the view switching unit / 2D output unit 114 outputs video data input from the video decoder 112 to the display device so that 2D video is output / reproduced.
- the view switching unit / 2D output unit 114 may also perform a change process from the 3D view to the 2D view according to a view switching command according to a user's request.
- the formatter unit 116 receives an input left image image and a right image image, formats the output image to a display device according to an output frequency or an output format of a digital receiver or a digital device.
- an FRC block Framework Rate Control block
- FIG. 2 is a block diagram illustrating an example of configuration of a 3D PVR module of FIG. 1.
- FIG. 2 detailed configuration blocks of the 3D PVR module 110 of FIG. 1 are described.
- an example of the 3D PVR module 110 according to the present invention includes a download module 212, an index & file database 214, and a storage unit. And an upload module 218. 1 and 2, the overall operation of the 3D PVR module 110 will be described.
- Transport stream packets passing through the VSB decoder 104 of FIG. 1 are input to the input switch unit 106.
- the input switch unit 106 determines the mode, selects an appropriate path accordingly, and delivers the inputted transport stream packets.
- the first operation is the first mode.
- the first mode is, for example, a process for processing inputted transport stream packets.
- the system decoder 108 transmits the transport stream packets to the demultiplexer 108 after basic processing.
- the demultiplexer 108 demultiplexes input transport stream packets into elementary streams including audio, video, and signaling information based on PID.
- the demultiplexer 108 includes, in particular, transport stream packets for transmitting the demultiplexed video elementary stream (Video ES) and 3D PVR information according to the present invention.
- Transport stream packets that transmit the received signaling information are transmitted to the download module 212.
- the download module 212 transmits and stores the transport stream packets for the input video elementary stream to the storage 111 and extracts 3D PVR information from the transport stream packets for transmitting the input signaling information.
- the database is stored in the index & file database 214.
- the transport stream packets stored in the storage 111 may be stored with a time stamp inserted by the download module 212.
- the index & file database 214 may generate necessary index data in addition to the 3D PVR information or store index data generated by the download module 212 together.
- the upload module 218 extracts transport stream packets from the storage 111 when the PVR playback request is received.
- the upload module 218 uploads the transport stream packets to the input switch unit 106, and if the input switch unit 106 is in the PVR playback mode as a result of the mode determination, the transport input from the upload module 218 accordingly.
- the system decoder 108 transfers the transport stream packets input from the input switch unit 106 directly to the demultiplexer 108 or the video decoder 112.
- the video decoder 112 decodes input transport stream packets and outputs video data.
- the video decoder 112 may appropriately decode the transport stream packets input based on the signaling information transmitted from the system decoder 108.
- the video decoder 112 outputs the corresponding data in a related configuration depending on whether 2D or 3D video data is input after decoding the transport stream packets.
- a user may request a trick mode from the digital receiver during PVR playback.
- the upload module 218 in the 3D PVR module 110 reads index data from the index & file database 214, and transfers appropriate transport stream packets from the storage 111 based on the read index data. Extract it and send it to the input switch unit 106.
- the procedure is the same as described above.
- 3 is a diagram illustrating an example of a 3D_PVR_Information_byte () bitstream syntax according to the present invention.
- a Data_length field (8 bits) indicates the length of each field below this field.
- a Picture_start_end field (1 bit) signals whether a transport stream packet including 3D PVR information includes a start point or an end point of each video picture. If you include a start point, set it to '0'. If you include an end point, set it to '1'.
- a RAP_included field (1 bit) is a field indicating whether a video elementary stream included in a transport stream packet including 3D PVR information is a random access point (RAP). I picture (or IDR picture). If this field is '1', it means RAP.
- the Base_or_Extend_Layer field (1 bit) indicates whether the picture corresponds to a base layer (or base view) in a coding scheme such as MVC (or SVC). Tells whether it is in an extended view. If this field is '1', it may represent an extended layer (view), and if it is '0', this field may represent a base layer (view).
- a Left_or_Right_View field (1 bit) indicates whether the corresponding picture is a left view or a right view. If this field is '0', it may indicate left view and if '1', it is light view.
- the Frame_num_type field (1 bit) indicates whether the frame_num field reference is in order of decoding or display. If this field is set to 0, it may indicate that the decoding order is set, and if it is set to 1, it is an order according to the display.
- the Frame_num field (32 bits) is used to sequentially number each picture in a situation where the first picture of a program is defined as zero. At this time, the picture pairs may be independently numbered in units of Base / Extend or / and Left / Right, and consequently, picture pairs having the same frame_num for left and right. , Base / extend).
- a 2D_normal_play_support field (1 bit) indicates whether 2D normal double speed playback is possible using the picture. In the case of frame-compatible 3D video, 2D normal double speed is not supported. In this case, this field may have a value of zero.
- a 3D_normal_play_support field (1 bit) indicates whether 3D normal double speed playback is possible using the corresponding picture. For 2D video this field shall be set to zero.
- a 2D_nx_fast_play_support field (1 bit) is a field indicating whether n-speed playback is possible in the 2D mode using the picture.
- n may have various values that can be reproduced such as 64, 128.
- the 3D_nx_fast_play_support field (1 bit) may determine whether n times speed reproduction is possible in the 3D mode using the corresponding picture.
- n is also defined as, for example, only 2, 3, 4, 6, 8, 16, and 32x speeds in FIG. 3, but is not limited thereto. Can have
- the above-described 3D_PVR_Information of FIG. 3 is transmitted by the transmitter to assist in processing the 3D PVR in the digital receiver according to the present invention, which may be included in the SI information and received and used by the digital receiver.
- the SI information may include PSI, PSIP, DVB, etc. according to a system, a region, a scheme, and the like.
- a method of signaling information supporting PVR for example, 3D_PVR_Information of FIG. 3 described above, will be described with reference to PSI, PSIP, and DVB.
- FIG. 4 is a diagram illustrating an example of a PMT table section bitstream syntax including PVR support information according to the present invention.
- the table_id field may be set as an identifier for identifying the PMT as a table identifier.
- the section_syntax_indicator field is an indicator that defines the section format of the PMT.
- the section_length field indicates the length of this table section.
- the program_number field describes a program to which program_map_PID is applicable.
- the version_number field indicates a version number of this table section.
- the current_next_indicator field is an indicator indicating whether the current table section is applicable.
- the section_number field indicates a section number of the current PMT section when the PMT is divided into one or more sections and transmitted.
- the last_section_number field indicates the last section number constituting the PMT.
- the PCR_PID field indicates a PID of a transport stream (TS) packet that carries a PCR (program clock reference) of a current program.
- the program_info_length field represents descriptor length information immediately following the program_info_length field in number of bytes.
- the stream_type field indicates the type and encoding information of the elementary stream contained in the packet having the PID value indicated by the following elementary_PID field.
- the stream_type field represents a coding type for the corresponding video element.
- the coding type may include JPEG, MPEG-2, MPEG-4, H.264 / AVC, H.264 / MVC, and the like.
- the elementary_PID field represents an identifier of an elementary stream, that is, a PID value of a packet including the corresponding elementary stream.
- This PID may be a PID of primary video data or secondary video data.
- the ES_Info_length field represents descriptor length information immediately after the ES_Info_length field in number of bytes. That is, the length of the descriptors included in the second loop.
- the descriptor level of the first loop of the PMT includes program level descriptors, and the stream level descriptors are included in the descriptor () area of the second loop. That is, the descriptors included in the first loop are descriptors individually applied to each program, and the descriptors included in the second loop are descriptors individually applied to each elementary stream ES.
- the CRC_32 field indicates a CRC value (Cyclic Redundancy Check value) that causes a zero output of a register in the decoder.
- the descriptor () 4010 may include program_level_descriptor according to the present invention, and the program_level_descriptor may indicate whether PVR support information for a corresponding program exists.
- the 3D_PVR_information_flag field may be included in the defined or predefined descriptor according to the present invention, and may indicate that 3D PVR support information for the corresponding program exists according to the value of this field. For example, if this field value is 1, 3D PVR support information for the corresponding program exists, and if 0, the 3D PVR support information for the corresponding program may be indicated.
- the field may be assigned a plurality of bits to signal whether or not the descriptor is transmitted along with the presence of 3D PVR support information for the corresponding program.
- adaptation_field_data_descriptor defined in the DVB scheme may be used.
- 5 is a diagram illustrating an example of an adaptation_field_data_descriptor bitstream syntax according to the present invention.
- the descriptor_tag field indicates that the corresponding descriptor is adaptation_field_data_descriptor
- the descriptor_length field indicates the length of the corresponding descriptor
- the adaptation_field_data_identifier field 5010 may be defined as shown in FIG. 6.
- b3 6010 when b3 6010 is set to 1 in FIG. 6, it may be identified whether 3D PVR support information is present in the adaptation_field of the transport stream packet including the corresponding elementary stream.
- the digital receiver first identifies whether the corresponding PID stream includes 3D PVR support information, and if 3D PVR support information exists, the PID value corresponding to the elementary stream of the corresponding program.
- 3D PVR information may be read and parsed from the adaptation_field of the transport stream packet having FIG.
- FIG. 7 illustrates an example of adaptation_field of an MPEG-2 transport stream packet including 3D PVR support information according to the present invention.
- An adaptation_field_length field (8 bits) describes the number of bytes up to the next adaptation_field_length field. If the value of this field is '0', it is for inserting a single stuffing byte in a transport stream (TS) packet.
- TS transport stream
- a discontinuity_indicator field (1 bit), if set to 1, indicates that a discontinuity state is true for a current TS packet. Conversely, if set to 0, it indicates that the discontinuous state is not present or false.
- the random_access_indicator field (1 bit) indicates that successive TS packets and possible next TS packets with the same PID as the packet contain some information to assist random access at this point. do.
- An elementary_stream_priority_indicator field (1 bit) indicates the priority of elementary stream data (ES) data transmitted in the payload of the TS packet among packets having the same PID.
- PCR_flag (1 bit), if set to 1, indicates that the adaptation_field includes a PCR field coded with 2 parts.
- OPCR_flag (1 bit) is set to 1, it indicates that the adaptation_field includes an OPCR field coded with 2 parts.
- splicing_point_flag (1 bit), if set to 1, indicates that a splice_countdown field exists in the associated adaptation_field that describes the occurrence of a splicing point.
- transport_private_data_flag (1 bit) 7010, if set to 1, indicates that the adaptation_field contains one or more private_data bytes.
- adaptation_field_extension_flag (1 bit), when set to 1, indicates the presence of an extension of the adaptation_field.
- the program_clock_reference_base and program_clock_reference_extension fields are coded in 2 parts.
- the 33 bits of the first part program_clock_reference_base field are values given by PCR_base (i).
- the 9 bits of the second part program_clock_reference_extension field are the values given by PCR_ext (i).
- the PCR indicates the time at which the input of the system target decoder informs the arrival of the byte including the last bit of program_clock_reference_base.
- the original_program_clock_reference_base and original_program_clock_reference_extension fields are coded into two parts. Base and Extension These two parts are coded identically to the corresponding parts of the PCR field.
- the presence of the OPCR is indicated by the OPCR_flag.
- the OPCR field is coded in the TS packet where the PCR field is present. OPCRs are allowed for both single program and multiple program TSs. The OPCR helps to reconstruct a single program TS from another TS. When reconstructing the original single program TS, the OPCR can be copied to the PCR field.
- the splice_countdown field (8 bits) has a positive or negative value. A positive value describes the remaining number of next related TS packets with the same PID until the slicing point is reached.
- a transport_private_data_length field (8 bits) 7020 describes the number of private_data bytes in the next transport_private_data_length field. Therefore, according to the present invention, the digital receiver can know how many bytes private_data_byte is based on this field.
- 3D_PVR_Information may be located according to the present invention.
- the digital receiver may grasp index information for implementing 3D PVR based on 3D_PVR_Information.
- An adaptation_field_extension_length field (8 bits) indicates the number of bytes of extended adaptation field data after this field.
- a ltw_flag (legal time window_flag) field (1 bit), if set to 1, indicates the presence of an ltw_offset field.
- piecewise_rate_flag if set to 1, indicates the presence of a piecewise_rate field.
- seamless_splice_flag if set to 1, indicates that the splice_type and DTS_next_AU fields are present. If set to 0, it indicates that neither the splice_type nor the DTS_next_AU fields are present.
- ltw_valid_flag legal time window_valid_flag
- a ltw_offset (legal time window offset) field (15 bits) is defined only when the ltw_valid flag is set to one. If this field is defined, the legal time window offset is in units of (300 / f s) seconds. Where f s is the system clock frequency of the program.
- the piecewise_rate field (22 bits) is defined only when the ltw_flag and ltw_valid_flag fields are set to 1. If this field is defined, the hyperthetic bitrate R is described.
- the splice_type bit (4 bits) has the same value in the next TS packets of the same PID that exist from the first presence of this field to the packet where splice_countdown reaches zero.
- a value of this field has a value of '0000'. If an elementary stream is transmitted over a video stream with the PID of the 13818-2 video stream, this field indicates the conditions involved by the elementary stream for splicing purposes.
- a decoding time stamp next access unit (DTS_next_AU) (33 bit) field is coded into 3 parts. In case of continuous and periodic decoding via this slicing point, indicates the decoding time of the first access unit of the next slicing point.
- the stuffing_byte field has a fixed 8-bit value and can be inserted by an encoder.
- 3D PVR support information for 3D broadcast service may be included in the PSIP of the ATSC system and transmitted.
- the 3D PVR support information may be transmitted by being included in Terrestrial Virtual Channel Table (TVCT) or Event Information Table (EIT) information in the PSIP.
- TVCT Terrestrial Virtual Channel Table
- EIT Event Information Table
- the TVCT table section includes a list of attributes of the virtual channels.
- the EIT table section is one of the tables of the PSIP including information on a title, start time, and the like for an event of a virtual channel. In most cases, one event refers to one typical TV program.
- Each EIT has multiple instances containing information for one virtual channel, and each instance can be identified by combining table_id and source_id.
- Each EIT instance may be segmented into 256 sections. One section may include information for several events, but information about one event is not segmented and is transmitted to two or more sections.
- FIG. 8 is a diagram illustrating an example of a TVCT table section bitstream syntax including PVR support information according to the present invention.
- each field constituting the TVCT table section including the 3D PVR support information according to the present invention will be described as follows.
- the table_id field indicates the type of table section. For example, if the table section is a table section constituting the TVCT table, this field may have a value of 0xC8.
- the section_syntax_indicator field consists of 1 bit and its value is fixed to 1.
- the private_indicator field is set to one.
- the section_length field consists of 12 bits and the first two bits are 00. This field indicates the length of the section from this field to the CRC field in bytes.
- the transport_stream_id field is composed of 16 bits and is an MPEG-2 transport stream (TS) ID. This field can be distinguished from other TVCT.
- the version_number field indicates the version of the table section. Whenever there is a change, the version_number field is incremented by 1, and when the version value reaches 31, the next version value is 0.
- the current_next_indicator field consists of 1 bit and is set to 1 if the VCT is currently applicable. If the value of this field is set to 0, this means that it is not applicable yet and the following table is valid.
- the section_number field represents the number of sections constituting the TVCT table.
- the last_section_number field indicates the last section constituting the TVCT table.
- the protocol_version field serves to allow different table types from those defined in the current protocol in the future. Only zero is valid in the current protocol. Nonzero values will be used in later versions for structurally different tables.
- the num_channels_in_section field represents the number of virtual channels defined in the VCT table section.
- information about each corresponding channel is defined in a loop form as many as the number of virtual channels defined in the num_channels_in_section field.
- fields defined for the corresponding channel in the form of a loop are as follows.
- the short_name field represents the name of the virtual channel.
- the major_channel_number field represents a major channel number of a corresponding virtual channel in a for loop. Each virtual channel is made up of multi-parts, such as major and minor channel numbers. The major channel number, along with the minor channel number, acts as a reference number to the user for that virtual channel.
- the minor_channel_number field has a value from 0 to 999. Minor channel numbers act as two-part channel numbers along with major channel numbers.
- the modulation_mode field indicates the modulation mode of the transport carrier associated with the virtual channel.
- the carrier_frequency field may indicate a carrier frequency
- the channel_TSID field has a value from 0x0000 to 0xFFFF and is an MPEG-2 TSID associated with a TS for delivering the MPEG-2 program referred to by this virtual channel.
- the program_number field associates a virtual channel defined in TVCT with a Program Association Table (PAT) and a Program Map Table (PMT) of MPEG-2.
- PAT Program Association Table
- PMT Program Map Table
- the ETM_location field indicates the existence and location of an extended text message (ETM).
- the access_controlled field is a flag field. When the access_controlled field is 1, it may represent that an event related to a corresponding virtual channel is accessed. 0 indicates that access is not restricted.
- the hidden field is a flag field. If 1, access is not permitted even if the number is directly input by the user. Hidden virtual channels are skipped when the user surfs the channel and appear to be undefined.
- the hide_guide field is a flag field. When the hide_guide field is set to 0 for a hidden channel, the virtual channel and an event may be displayed on the EPG display. This field is ignored if the hidden bit is not set. Thus, non-hidden channels and their events belong to the EPG display regardless of the state of the hide_guide bit.
- the service_type field identifies a type of service delivered through the corresponding virtual channel.
- the source_id field identifies a programming source related to the virtual channel.
- the descriptors_length field represents the length of a following descriptor for a corresponding virtual channel in bytes.
- the descriptor () field 8010 may not include a descriptor or may include one or more descriptors. This descriptor () field 8010 is described below.
- the additional_descriptors_length field represents the total length of the following VCT descriptor list in bytes.
- the CRC_32 field indicates a CRC value (Cyclic Redundancy Check value) that causes a zero output of a register in the decoder.
- the service_type field is a field indicating when the broadcast service provided by the corresponding channel is a 3D broadcast service.
- the field value of the service_type field is 0x11, it may represent that 3D broadcast program (including audio, video, and additional video stream for displaying 3D stereoscopic image) is provided in the corresponding virtual channel. have.
- the broadcast receiver should parse information about two video streams (primary video stream and secondary video stream) and a 3DTV service location descriptor.
- the descriptor () field 8010 may include a descriptor associated with a 3D stereoscopic service, a channel_location_descriptor including 3D PVR support information, and the like. In addition, the descriptor () field 8010 may include information about two video streams constituting the stereoscopic video service.
- FIG. 9 is a diagram illustrating an example of a channel_level_descriptor bitstream syntax according to the present invention.
- the channel_level_descriptor of FIG. 9 is for signaling the presence or absence of 3D PVR support information for a corresponding channel according to the present invention
- a service_location_descriptor predefined in a PSIP can be used or is defined as a descriptor different from the service_location_descriptor. It can also be included in a table section.
- the case of using the former, i.e., the reserved field of the predefined service_location_descriptor will be described as an embodiment.
- the descriptor_tag field indicates that the corresponding descriptor is channel_level_descriptor
- the descriptor_length field indicates the length of the corresponding descriptor
- the reserved field (3 bits) 9010 is reserved as it is and uses 2 bits as 3D_PVR_information_flag indicating whether 3D PVR support information is present using only 1 bit. For example, if the 3D_PVR_information_flag value is 1, the 3D PVR assistance information is present, and if it is 0, it is not present.
- the PCR_PID field (13 bits) indicates the PID of transport stream packets containing the valid PCR fields for the program described by the program_number field.
- a number_elements field (8 bits) indicates the number of PIDs used for that program. Related information is defined in a for loop structure for each PID indicated by these fields.
- a stream_type field (8 bits) describes the type of the elementary stream.
- the reserved field (3 bits) 9020 may be defined in the same manner as the reserved field 9010 described above.
- the elementary_PID field represents a PID for the corresponding elementary stream.
- the meaning is slightly different.
- the aforementioned reserved field 9010 and the reserved field 9020 in the for loop structure may exist in only one of them, or both.
- the digital receiver may read and parse 3D PVR support information from the adaptation_field of the transport stream packet for all the elementary streams constituting the channel from the corresponding flag value.
- the receiver may read and parse 3D PVR support information from the adaptation_field of the transport stream packet corresponding to the corresponding stream. For example, if 3D_PVR_Information_flag is 1 only for video elementary streams, then 3D PVR support information should be found only in streams that contain video elementary streams, and 3D PVR support information is found for audio or other streams that make up the same channel. no need.
- FIG. 10 is a diagram illustrating an example of an EIT table section bitstream syntax including PVR support information according to the present invention.
- the table_id field consists of 8 bits and has a value of '0xCB', which means that the section belongs to the EIT.
- the section_syntax_indicator field consists of 1 bit and has a value of '1'. In this case, this section means that the section_length field follows the general section syntax.
- the private_indicator field consists of 1 bit and may have a value of '1'.
- a section_length field (12-bit) indicates the number of bytes remaining in a later section.
- a source_id field (16-bit) describes the source_id of the virtual channel that carries the events depicted in that section.
- a version_number field (5-bit) indicates the version number of the corresponding table section.
- the current_next_indicator field (1-bit) is set to 1 to indicate that the corresponding table section is currently applicable.
- a section_number field (8-bit) indicates the number of the corresponding section among the plurality of sections in the EIT.
- a last_section_number field (8-bit) indicates the number of the last section among a plurality of sections in the EIT.
- the protocol_version field has an 8-bit unsigned integer and indicates the version of the current protocol.
- the num_events_in_section field indicates the number of events in the corresponding table section. If the value of this field is 0, it indicates that there is no event defined in this section. According to the value of the num_events_in_section field, information about each event will be described in a 'for' loop structure as follows.
- the event_id field indicates the identification number of the event to be described.
- the start_time field is a 32-bit unsigned integer that indicates the start time of the event in GPS time from 00:00:00 UTC on January 6, 1980.
- An ETM_location field (2-bit) describes the presence and location of an extended text message (ETM).
- the length_in_seconds field describes the duration of the event in seconds.
- the title_length field describes the length of the title_text () field described later.
- the title_text () field describes an event title having a format of a multiple string structure.
- the descriptors_length field represents the total length of the following event descriptor in the EIT in bytes.
- the descriptor () field 10010 has a 'for' loop structure and includes no or multiple descriptors included in the EIT.
- the CRC_32 field (32-bit) contains a CRC value to ensure zero output from registers in the decoder.
- the descriptor () field 10010 may indicate whether 3D PVR support information for an event exists through one of various descriptors of an event level.
- the above-described method is similar to the above-described methods, for example.
- the digital receiver may know in advance that 3D PVR support information will be included from the adaptation_field of the transport stream packet for the corresponding event using a descriptor included in the EIT.
- the digital receiver determines that all transport stream packets corresponding to the event include the corresponding information. Therefore, the digital receiver examines the adaptation_field of the transport stream packet for all the elementary streams for the event and not for the specific elementary stream. Can be.
- the ATSC method or system the DVB method or system will be described below.
- the description of the content overlapping with the above-described content is used for the above-described content and will be described below with a focus on differences.
- SDT service description table
- the SDT describes services included in a specific transport stream in the DVB scheme.
- each field constituting the SDT table section will be described with reference to FIG. 11.
- the table_id field is an identifier for identifying a table. For example, a specific value of the table_id field indicates that this section belongs to a service description table.
- the section_syntax_indicator field is a 1-bit field and is set to 1. In the section_length field, the first two bits are set to 00. The number of bytes of the section including the CRC after this field.
- the transport_stream_id field serves as a label for identifying a transport stream (TS).
- the version_number field represents the version number of the sub_table. Whenever there is a change in the sub_table, it is incremented by one.
- the current_next_indicator field is set to '1' if the sub_table is currently applicable. If it is set to 0, this means that it is not applicable yet and the following table is valid.
- the section_number field represents a section number. The first section has a value of 0x00, and the value is increased by 1 for each additional section having the same table_id, the same transport_stream_id, and the same original_network_id.
- the last_section_number field indicates the number of the last section (ie, the highest section_number) of the corresponding sub_table to which this section is a part.
- the original_network_id field is a label identifying the network_id of the transmission system.
- This SDT table section describes a number of services. For each service, the following fields can be defined in a for loop structure.
- the service_id field defines an identifier that serves as a label to distinguish it from other services included in the TS.
- the value of this field may have the same value as program_number of program_map_section.
- the EIT_schedule_flag field if set to 1, indicates that EIT schedule information for a corresponding service is included in the current TS. A value of 0 indicates that EIT schedule information is not included.
- the EIT_present_following_flag field if set to 1, indicates that EIT_present_following information for a corresponding service is included in the current TS.
- a value of 0 indicates that EIT present / following information is not currently included in the TS.
- the running_status field represents the state of a service.
- the free_CA_mode field is set to 0, it indicates that all elementary streams of the corresponding service are not scrambled. If set to 1, it means that one or more streams are controlled by a CA (Conditional Access system).
- the descriptors_loop_length field represents the total length of a following descriptor in bytes.
- the CRC_32 field indicates a CRC value for zero output of a register at the decoder.
- the descriptor () 11010 following the descriptors_loop_length field may include a service_level_descriptor of DVB-SI, and the service level descriptor may provide 3D PVR support information for a corresponding service. It can indicate whether or not.
- the service_level_descriptor may use a signaling method using b3 of the adaptation_field_data descriptor.
- the digital receiver may read and parse 3D PVR support information from the adaptation_field of the transport stream packet for the corresponding service and use it.
- the digital receiver may find 3D PVR support information by examining the adaptation_field of the transport stream packet corresponding to all elementary streams included in the service.
- FIG. 12 is a diagram illustrating another example of an EIT table section bitstream syntax including PVR support information according to the present invention.
- FIG. 12 is basically for signaling about an event included in a channel or a service in common in an ATSC system and a DVB system, and fields defined in a corresponding table section are similar in general. Accordingly, most fields are inferred by referring to or referring to the field description of the PSIP EIT of FIG. 10 described above, and only the descriptor () field 12010 will be described below in connection with the present invention.
- the descriptor () field 12010 may indicate whether 3D PVR support information for an event exists through one of various descriptors of an event level.
- the above-described method is similar to the above-described methods, for example.
- the digital receiver may know in advance that 3D PVR support information will be included from the adaptation_field of the transport stream packet for the corresponding event using a descriptor included in the EIT.
- the digital receiver determines that all transport stream packets corresponding to the event include the corresponding information. Therefore, the digital receiver examines the adaptation_field of the transport stream packet for all the elementary streams for the event and not for the specific elementary stream. Can be.
- FIG. 13 is a block diagram illustrating an example of a configuration of a download module 212 included in the 3D PVR module 110 of FIG. 2.
- the download module 212 which basically receives the transport packets for the demultiplexed video elementary streams from the demultiplexer 108. In FIG. Then time stamping and / or indexing.
- the download module 212 is basically a component for performing an operation for storing a PID (Packet IDentifier) stream corresponding to a program to be recorded among transport streams input to the system decoder 108.
- PID Packet IDentifier
- the download module 212 includes a system clock part 13012, a time-stamp insertion part 1301, and an index processing part 1316. And the like.
- the index processor 1316 is for indexing work for convenience of trick play in the PVR play mode, and may be unnecessary in the basic play mode, as described below. Therefore, in some cases, it can also be omitted.
- the processing of the time-stamp is basically a system in which transport packets for video elementary streams recorded and stored via the download module 212 are uploaded via the upload module 218 in a later playback process.
- the timing of the transport stream input to the system decoder 108 at the time of storage and the timing of the input of the decoder 108 is matched.
- time stamp processing there are three ways of time stamp processing. First, a time-stamp is inserted into every transport packet input from the demultiplexer 108. Second, a time-stamp is inserted into each transport packet of a predetermined predetermined unit. Finally, an adaptive time-stamp is inserted. There may be an insert method. Here, unlike the first scheme, a time-stamp is not inserted into every transport packet. However, unlike the second scheme, a time-stamp scheme is inserted instead of a time-stamp periodically.
- a time-stamped transport of 192 bytes is attached with a time-stamp (4 bytes) to every transport packet (188 bytes) input to the download module 212 via the system decoder 108. It is in the form of a stream.
- the second to third methods it is for minimizing the overhead caused by the time-stamp, and adaptively determines whether to insert a time-stamp for the input transport packet. By time stamping the system efficiency can be increased.
- the input data becomes a transport packet to be stored, and a time-stamp corresponding to the PCR value when the corresponding transport packet is input is added to the data packet.
- the stamp is inserted into a 192 byte time-stamped transport stream.
- FIG. 14 to 16 illustrate an example of an implementation of time stamp insertion in a download module according to the present invention
- FIG. 17 illustrates an example of a time stamp index data structure when using a time stamp according to the present invention. Figure is shown.
- 14 to 16 specifically illustrate a case where a time-stamp is inserted only when discontinuity occurs, for example, without inserting a time-stamp in all transport packets belonging to all transport streams to be stored. have.
- a method of not inserting a time stamp in all transport packets is called, for example, an adaptive time-stamp insertion method.
- time-stamp index (FIG. 17) indicating a time-stamping zone in each transport packet may be used as described above.
- a time-stamp index data structure used when using an adaptive time stamp has a size of 1 byte and indicates a time_stamp_exist field indicating or presence of a time stamp in a corresponding transport packet at a most significant bit (MSB, 1 bit).
- (field) 1710 and the remaining bits include a packet_run_length_minus_1 field 1720.
- the packet_run_length_minus_1 field 1720 may indicate or identify the number of consecutive transport packets to which the time-stamp is not added, for example, the packet. Therefore, by using the packet_run_length_minus_1 field 1720, the time-stamp index defined as shown in FIG.
- the packet_run_length_minus_1 field 1702 constituting the time-stamp index is not defined, for example, it may be added to all transport packets that are input or to all transport packets to which no time-stamp is added. .
- FIGS. 14 to 17 a time stamp processing method according to the present invention will be described.
- the following describes a method of implementing a time stamp index as shown in FIG. 17 with reference to the examples of FIGS. 14 to 16.
- a total of eight PID streams input to the system decoder 108 are illustrated.
- the first two PID streams have a value of 0x0300 as the PID value
- the next four PID streams have a value of 0x0301, 0x0301, 0x0302, and 0x0302, respectively
- the remaining two PID streams have a value of 0x0300 again. Illustrated.
- the PID belonging to the stream to be downloaded among the eight PID streams of FIG. 14 are PID streams having values of 0x0300 and 0x0301, as illustrated in FIG. 15, the PID having a PID value of 0x0302 among the total of eight PID streams is shown.
- a total of six PID streams except two are input to the download module 212 through PID filtering.
- each PID stream is input sequentially, for example. Because, each PID stream has a system clock (system clock) input to the system decoder 108, because the PID streams stored in the storage unit 111 in the PVR module is used again in the future.
- system clock system clock
- the PID streams input to the download module 212 may include two PIDs having a PID value of 0x0302 through PID filtering among the eight PID streams input to the first system decoder 108. A total of six PID streams (except the fifth and sixth PID streams in sequence) are input to the download module 212, thereby generating a discontuinty 15010.
- the download module 212 is configured for proper processing of PID streams input after the discontinuity interval 15010 when a discontinuity interval 15010 is generated between the PID streams. Action should be taken.
- an adaptive time-stamp method according to the present invention, in which the time including the adaptive time-stamp defined as shown in FIG. 17 in the PID stream 16010 first inputted after the discontinuous interval 15010. To add a stamp.
- the time_stamp_exist field 1710 of the adaptive time-stamp is defined as a value indicating that a time-stamp exists in the packet, and in the following packet_run_length_minus_1 field 1720, the PID streams existing between up to the next discontinuity interval are included. By indicating the number, the efficiency of the system can be increased.
- the range in which the PID streams may be indicated may be limited by defining 1 byte. This can be solved by increasing the number of bytes defined by the corresponding adaptive time stamp or adding a time stamp by selecting the PID stream again in an appropriate range. For example, if the run length is 128 or more, the code is split and implemented. Therefore, when 255 consecutive packets without time stamps are generated, it can be expressed as 0x7F 0x7D.
- the time-stamped PID stream may have a size of, for example, 192 bytes.
- the following describes a method of constructing an index in the download module 212, where the index is different from the adaptive time-stamp index described above.
- the download module performs an operation for storing a PID stream corresponding to a program to be recorded among the broadcast streams input to the system decoder 108.
- the download module may read and parse the 3D PVR support information to store the stream and provide information necessary for control or / and management for later playback and trick play.
- FIG. 18 is a diagram illustrating an example of an index configuration in the download module 212 according to the present invention.
- an index defined by one byte includes 24 in total, from the most significant bit (MSB) b23 I_picture_flag to the least significant bit (LSB) b0 Reserved.
- This index is for example for trick play that is commonly requested and implemented in the PVR, for example, for implementations of fast forward, skip, and the like.
- the digital receiver decodes the video decoder itself at a normal speed even when the user requests a trick play in the PVR playback process.
- the digital receiver since pictures that are actually decoded according to the requested trick play are skipped and input according to the corresponding speed, the user may feel a fast speed or skip effect.
- the upload module 218 in order to perform a smooth trick play, a location of data to be input to the (system) decoder must be quickly found and extracted and input. To this end, it is necessary to find the location of the corresponding data quickly.
- the index information according to the present invention is for faster and more efficient retrieval of data to be input to the decoder in the upload module 218 in this case.
- the index information when performing a trick play according to a request during a PVR playback process in the digital receiver, the index information extracts additional data that can quickly search for an appropriate data position from a stored video stream.
- data corresponding to a random access point RAP
- the random access point may be any one of I, B, and P pictures.
- an I picture is described as a random access point (RAP) as an example to help understanding of the present invention and for convenience of description.
- an I picture refers to a picture that can be randomly accessed.
- the index information may define a 2D / 3D related indexing function so that the 2D or 3D mode can be selected during the trick play, that is, the stream can be properly uploaded according to the mode.
- the download module 212 should read the 3D PVR support information included in the adaptation_field of the transport stream packet stored when the index is generated, and determine whether the RAP is included in the packet from this. In addition, the download module 212 determines whether the video elementary stream included in the corresponding transport packet is left image image data or right image image data (left / right). In addition, the download module 212 may determine whether the 2D compatible stream in the case of 3D.
- the download module 212 may also identify the speed information of the corresponding packet and configure chain information of the corresponding speed when implementing fast play.
- the input data is the transport stream to be stored, and the output data is whether each transport stream packet includes an I-picture start (or start byte of the RAP), an elementary stream and a view when the I-picture start is included.
- Type eg, whether 2D compatibility, left video image or right video image view included
- double speed chain information e.
- the download module 212 generates an index while parsing 3D PVR support information, aggregates these indexes, and creates and stores an index file.
- the download module 212 is variable to generate an index for each transport packet or group of transport packets (e.g., 100 transport packet bundles or I picture start) to generate an index.
- the download module 212 transmits the inspection result to the index & file database, and manages by mapping the index and the physical location where the transport packet is stored in the index & file database.
- the video elementary stream of the enhancement layer does not necessarily need to be an I picture.
- the download module 212 receives a transport packet to be stored as input data, but each transport packet includes an I picture start or a start byte of a random access point (RAP), an element including an I picture start position.
- a transport packet including an index including information such as a mentor stream and a view type is output.
- the view type information includes, for example, information on whether 2D compatibility, information on whether a light view is included, and the like.
- an index may be generated for each packet.
- I_picutre_flag (b23) on the presence or absence of an I picture
- picture_start_exist (b22) on the presence or absence of a picture starting point
- picture_endt_exist (b21) on the presence or absence of a picture end point
- base_layer (b20) on whether or not the base layer is sequentially from the most significant bit.
- Enhance_layer (b19) for whether it is an enhancement layer
- left (b18) for whether it is left image data
- reserved (b16) for future use. It is composed.
- double speed information to chain information are defined to include b15 to b9 and b7 to b1.
- the former b15 to b9 may indicate an information flag for 3D double speed
- b7 to b1 may indicate an information flag for 2D double speed.
- the digital receiver may know the codec information of the enhancement layer based on the signaling information in the received digital signal.
- the system decoder 108 may recognize that the corresponding video stream is configured as a dual stream.
- the enhance_layer flag may not have meaning independently. This is because the video elementary stream itself of the enhancement layer is based on the video elementary stream of the base layer. Therefore, when the enhance_layer flag is deactivated, the digital receiver may know that the corresponding video stream is a single video stream. In this case, the Base_layer flag may be activated. This is because the base layer itself corresponds to a single video stream, so related information can be defined.
- the left or right flag may be viewed based on the left image image data or the right image image data in 2D mode viewing, for example, in view switching, in addition to identifying left image image data or right image image data of the corresponding data when viewing 3D mode. It can be used to determine whether the corresponding flag information can be used if view switching is requested during viewing as described above.
- the download module 212 has been described in detail so far. The following describes the upload module 218 in which the system decoder 108 uploads transport packets for the video elementary stream in PVR playback.
- FIG. 19 is a conceptual diagram illustrating a concept of a prediction chain for fast play support according to the present invention
- FIG. 20 is a diagram illustrating packet and storage address mapping for picture data stored according to the present invention
- FIG. 21 is a diagram illustrating an example of information configuration
- FIG. 21 is a diagram illustrating an example of a configuration of a fast play command chain table for supporting a fast play mode according to the present invention.
- each picture number is, for example, a picture pair.
- 20 and 21 show contents of a frame number and a transport stream packet when configuring a fast play chain based on FIG. 19.
- the pictures belonging to each play chain may vary according to the speed mode selected by the user. Therefore, by mapping the corresponding data for each double speed in advance, and generating and storing the mapping information, the digital receiver can process the play faster and more efficiently in the future.
- Figures 20 to 21 are as follows.
- FIG. 20 illustrates the picture pair numbers of FIGS. 19A to 19D, transport stream packets corresponding to the picture numbers, address information (byte unit) for the start position in the storage device, and the size of the byte unit. .
- the transport stream packets corresponding to the picture number are 1 to 100, and the address information (byte unit) for the start position in the storage device is 0x0000 A000 and the size in byte unit. Is 18800 bytes.
- the transport stream packets corresponding to the picture number are 321 to 410, the address information (byte unit) for the start position in the storage device is 0x0001 8B00, and the size of the byte unit is 16920. Bytes.
- each piece of information is defined for picture pair numbers 1 to 13.
- FIG. 20 each piece of information is defined for picture pair numbers 1 to 13.
- FIG. 21 constitutes a triple speed fast play command chain table.
- the 3x fast play command chain table may include 'Go to 0x0000 A000', 'Read up to 0x000 E96F', 'Skip to 0x000 8B00' to 'Skip to 0x0004 2EA0', and 'Read up to' 0x0004 70B7 'is defined, each with' start of picture pair 1 ',' read until the end of picture pair 1 ',' start of picture pair 4 ' (start of picture pair 4) to 'start of picture pair 13' and 'read until the end of picture pair 13'.
- FIG. 22 is a diagram illustrating an example of an index file structure for performing a 3D PVR function using the above-described information of FIGS. 19 to 21 according to the present invention.
- the index file structure of FIG. 22 may be, for example, configured for internal use of a digital receiver and may be a format for collecting and finally storing an index extracted from each packet.
- an index file structure for performing a 3D PVR function may include a picture type, a picture number, an address, and a size. .
- the picture type (8 bits) indicates whether or not L / R, base / enhancement layer, RAP or the like.
- the picture number (32 bits) may be configured using the frame_num field of the 3D PVR support information.
- the address 128 bits means logical or physical address information in the storage device 111.
- the size represents the size of the picture.
- FIG. 23 is a block diagram illustrating an example of a configuration of an upload module 218 included in the 3D PVR module of FIG. 2 according to the present invention.
- the PVR when the upload module 218 plays the content stored or recorded in the storage unit 111 of the PVR, the PVR inputs the transport packets input from the storage unit 216 to the system decoder 108 in a timely manner. Enable playback.
- the upload module 218 removes the four-byte time-stamp when the input transport packet is, for example, a time-stamped transport stream having a size of 192 bytes, thereby removing the system decoder 108 and the video decoder.
- Each packet of size 188 bytes processable at 112 is entered into the system decoder 108 at a timing based on the removed time-stamp.
- the upload module 218 selectively receives only appropriate transport packets based on the index information configured as shown in FIG. 18 extracted from the index & file database 214 to perform the trick play. It may also output to the decoder 108.
- the upload module 218 may include a system clock unit 23012, an output controller 23014, a time-stamp processor 23016, and the like. .
- the system clock unit 23012 provides information about a system clock to be referred to when the output control unit 914 controls the output, that is, when controlling the output of the corresponding transport packet.
- the output controller 23014 receives the index data from the index & file database 214 and requests the data from the storage 111. In this case, in requesting data to the storage 111, the output controller 23014 may make a request based on the received index data.
- the storage 111 transmits the corresponding transport packet to the time stamp processor 23016 according to a request of the output controller 23014. In this case, all of the transport packets output from the storage 111 may be time-stamped transport packets, and only some of them may be time-stamped transport packets.
- the time-stamp processor 23016 removes the time-stamp from the inputted transport packets and outputs only 188-byte transport packets directly to the output control unit 23014 or the system decoder 108.
- the output controller 23014 may output a control signal to the time-stamp processor 23016 by calculating a system timing according to the system clock of the system clock unit 23012.
- the transmission timing to the system decoder 108 refers to a time stamp to be removed.
- the system time output from the system clock unit 23012 is read and the corresponding value matches the value of the time stamp, the corresponding transport packet is stored. Input to the system decoder 108.
- the output timing may be calculated by using a virtual time stamp value with reference to a bit rate input during recording.
- the virtual time stamp may be generated, for example, in the download module 212 described in the 3D PVR module or may be generated by adding a separate configuration.
- the upload module 218 may refer to the time-stamp index described above with respect to the existence of the time-stamp, and thus may know the length and time-stamp of each transport packet.
- the output control unit 23014 does not always receive index data and request data from the storage unit 216 based on the index data, but may request a data output that is not based on the index data during normal playback. . That is, in the case of trick play reproduction, the index & file database 214 may not be accessed with the output control unit 23014.
- the number of pictures to be skipped in the software / middleware is determined according to the operation mode, and then the picture to be played is selected. For example, when the PVR module 110 intends to implement 3X fast forward, the PVR module 110 may implement the corresponding operation by sequentially performing the operations specified in the command chain for 3X play shown in FIG. 21 described above.
- the upload module 218 processes the data at a normal speed with the system decoder 108 and the video decoder 112 during the playback process, but since the input data itself is skipped data, fast double speed playback is possible. Become. For example, if the I picture period is 10, when the trick play is performed using only the I picture, the effect of fast playback at 10 times speed may occur.
- 24 is a flowchart illustrating an example of an operation of a receiver during 2D / 3D recording according to the present invention.
- FIG. 24 is a description of an operation of recording or storing a transport stream input in a 2D / 3D mode in a digital receiver.
- the description of the steps before the first transport stream is processed by the system decoder 108 via the receiver 102 and the VSB decoder 104 uses the foregoing description and the detailed description is Omit.
- the system decoder 108 determines whether there is a request for performing a PVR function, that is, a content storage command or a request, by the user (S102). As a result of the determination, if there is no content storage command, the system decoder 108 processes the input transport stream and then controls it to be output through the demultiplexer and the video decoder 112. Here, appropriate processing may be performed by referring to the above contents depending on whether the inputted transport stream is 2D / 3D and may be output. For example, if the input transport stream is a 3D video stream, it is converted into a 3D output form through the formatter 116 and displayed.
- the system decoder 108 determines whether the recording mode is 2D / 3D if there is a content storage command or request by the user (S104). This is because it is necessary to properly control the operation of the PVR module 110 according to the recording mode requested by the system decoder 108, and the operation of the PVR module 110 may be different according to the recording mode as described above. Because.
- step S104 when the recording mode is the 3D mode, the system decoder 108 performs a PID combination to enable processing of the transport packet for the video elementary stream to be input to the PVR module 110 via the demultiplexing unit. It must be determined (S106).
- step S106 the system decoder 108 performs filtering on the PID streams to be input to the PVR module 110 according to the determined PID combination. That is, the system decoder 108 selects the base layer video / audio elementary stream and the enhancement layer video elementary stream from the transport packets input through the demultiplexer and controls the input to the PVR module 110. (S108).
- step S104 when the recording mode is the 2D mode, the system decoder 108 performs a PID combination to enable processing of the transport packet for the video elementary stream to be input to the PVR module 110 via the demultiplexer.
- a PID combination to enable processing of the transport packet for the video elementary stream to be input to the PVR module 110 via the demultiplexer.
- step S106 the system decoder 108 performs filtering on the PID streams to be input to the PVR module 110 according to the determined PID combination. That is, the system decoder 108 selects the base layer video / audio elementary stream among the transport packets input through the demultiplexer and controls the input to the PVR module 110 (S112).
- the PVR module 110 stores analysis and related information on video data for video elementary streams input under the control of the system decoder 108.
- the 3D PVR support information is analyzed by the index extraction module of the download module 212 to determine whether the corresponding packet is the start point of the I-picture, whether it is left / right, the start and end points of the picture, whether the base layer or the enhancement layer, etc. (S114).
- the trick mode supported by the packet is identified, and a play command chain is created and stored in units of modes to support trick play corresponding to each mode (S116).
- the trick play command chain information may be independently managed for 2D and 3D.
- the download module 212 inserts the time when each input transport packet is input to the system decoder 108, that is, the system time as the system clock, and designates the time as a time stamp and inserts it into the transport packet (S118). .
- the PVR module 110 generates and inserts a time-stamp for the transport packet in the storage 111 based on the analysis result of the video data performed in step S114 according to the method of FIGS. 14 to 17 described above. It may be stored, or may be performed separately from the index file generation step before step S114, that is, after step S108. In particular, when the adaptive time stamp is used, it is possible to determine whether the transport packet is discontinuous, and determine and control the time stamp to be inserted according to the determination result.
- the PVR module 110 generates an index file in the same manner as in FIG. 18 so as to enable trick play reproduction of the PVR function after step S116 or at the same time, and stores the index file in the index & file database 214 (S120).
- 25 is a flowchart illustrating an example of a receiver operation during 2D mode playback according to the present invention.
- FIG. 25 is a description of performing a playback operation on content stored for performing a PVR function, for example, as shown in FIG. 24.
- the stored content itself may be 2D content / 3D content.
- the upload module 218 determines whether the playback mode is 2D or 3D (S202). As a result of the determination, if the playback mode is 3D, reference is made to FIG. 26 described later (S204), and a detailed description thereof will be omitted.
- the upload module 218 may input the PID stream corresponding to the video elementary stream to be uploaded to the system decoder 108. Filtering is performed (S206).
- the upload module 218 reads an index file from the index & file database 214 for upload control on the video elementary stream to be reproduced, and stores the data corresponding to 2D based on the read index file ( 111) determine the position (S208). That is, in the case of the dual stream, only the base layer elementary stream is received, and the video elementary stream corresponding to the enhancement layer video elementary stream is skipped. However, in the case of the normal double speed, the 2D mode reproduction in which the enhancement layer is omitted without a timing problem for the normal double speed reproduction by the PID filter operation of the subsequent stage (the demultiplexer 108) does not need to skip the enhancement layer. This is possible.
- the upload module 218 uploads the 2D corresponding data according to the system timing.
- the trick play is selected, in order to ensure the normal operation of the system decoder 108 and the video decoder 112, only data corresponding to 2D is output from the upload module 218 to the system decoder 108.
- trick play is performed using the trick play chain information identified in the recording process. For example, in the case of 2X 2D playback, a trick play is performed using only data belonging to a play command chain stored in advance (S210).
- the 2D corresponding data is decoded through the system decoder / demultiplexer 108 and the video decoder 112 (S212), and video reproduction is performed (S214).
- 26 is a flowchart illustrating an example of an operation of a receiver when reproducing a 3D mode according to the present invention.
- FIG. 26 relates to an operation of a receiver during 3D mode reproduction. As described above, it may correspond to a case in which the reproduction mode is 3D as a result of the step S202 determination.
- the upload module 218 determines whether the playback mode is 2D or 3D (S302). As a result of the determination, when the reproduction mode is 2D, the aforementioned FIG. 25 is referred to (S304).
- the upload module 218 performs PID filtering to input the PID stream corresponding to the video elementary stream to be uploaded to the system decoder 108 (S306).
- the upload module 218 reads an index file from the index & file database 214 for upload control on the video elementary stream to be reproduced, and stores a data corresponding to 3D based on the read index file ( 216) determine the position (S308).
- step S308 the upload module 218 determines whether there is a play request for trick play (S310).
- step S310 if there is no request for trick play playback, all video elementary streams downloaded when the 3D mode is stored are uploaded based on the determined position of the 3D data (S312).
- step S310 if there is a trick play reproduction request, only the transport packet corresponding to the 3D I picture is extracted and uploaded. In this case, the transport stream packet corresponding to the 3D I-picture is output to the system decoder (S314). Corresponding base and enhancement layer video data designated as I-pictures should be uploaded, and the finally output video is decoded (S316) of I-pictures of base and enhancement layer and output through mode conversion in a formatter (S318). ).
- the technical idea of the present invention is not necessarily limited to the I-picture.
- the present invention enables a faster and more accurate 3D PVR function for 3D streams transmitted as dual streams in a digital receiver.
- a trick play chain is used for this purpose.
- the trick play chain may be, for example, by designating a picture constituting the trick play chain using a flag corresponding to the corresponding double speed, and it is not necessary to construct a trick play chain using only an I-picture.
- the trick play chain may be composed of a picture different from a part of the I-picture or another picture.
- the trick play chain need not be identically configured at each speed, and pictures constituting the trick play chain configured at each speed may be different.
- 3D-formatted 3D data is output (S320).
- trick play is performed using the trick play chain information identified during recording. For example, in the case of 2X 3D playback, a trick play is performed using only data belonging to the play command chain for this.
- FIG. 27 is a flowchart illustrating an example of an operation of a receiver when a view switching request is performed according to the present invention.
- the upload module 218 determines the playback mode (S402), and if the 2D mode refers to the description of Figure 25 (S404). However, if the determination result is the 3D mode, the upload module 218 again determines whether there is MVC or view dependency (S406). This is because when MVC or view dependency exists, all information corresponding to the base layer must be uploaded (S408).
- the upload module 218 uploads the corresponding data using the index information after performing the operation up to step S408 (S410).
- the system decoder / demultiplexer 108 and the video decoder 112 decode the 3D corresponding data uploaded (S412), and the formatter 116 performs 3D formatting according to the output format (S414).
- the 3D formatted 3D data is output (S416).
- both left and right views are processed, but only the view selected in the final output process may be output.
- the digital receiver may be selected to the desired view.
- the display device and its operation method according to the present invention can not be limitedly applied to the configuration and method of the embodiments described above, the embodiments are all or part of each embodiment so that various modifications can be made It may alternatively be configured in combination.
- the operating method of the display device of the present invention can be implemented as a processor-readable code on a processor-readable recording medium provided in the display device.
- the processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. .
- the processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.
- the present invention relates to the processing of 3D content in a digital receiver having a PVR device capable of receiving and storing a 3D signal, which can be used in all fields of the digital receiver, and thus has industrial applicability.
Abstract
Description
Claims (20)
- 3D 서비스를 위한 디지털 방송 신호를 처리하는 방법에 있어서,3D 비디오 기본 스트림과 상기 3D 비디오 기본 스트림의 3D PVR 지원 정보를 포함한 시스템 정보를 수신하는 단계;3D 비디오 기본 스트림에 타임-스탬프를 부가하여 저장하는 단계;3D PVR 지원 정보로부터 추출된 3D 비디오 기본 스트림의 3D PVR 기능 수행을 위한 정보가 포함된 인덱스 파일을 저장하는 단계;저장된 3D 비디오 기본 스트림을 인덱스 파일과 타임-스탬프 값 중 적어도 하나에 기초하여 디코딩하는 단계; 및디코딩된 3D 비디오 데이터를 출력 포맷에 맞게 포맷팅하여 출력하는 단계;를 포함하는 방법.
- 제1항에 있어서,상기 인덱스 파일은, 해당 패킷에 대해 L/R 여부, 베이스/인핸스먼트 레이어 여부, RAP 여부를 지시하는 픽쳐 타입 정보, 픽쳐 넘버에 대한 픽쳐 넘버 정보, 저장부 내 논리 또는 물리 주소를 지시하는 어드레스 정보 및 해당 픽쳐의 사이즈를 지시하는 사이즈 정보 중 적어도 하나 이상을 포함하는 방법.
- 제2항에 있어서,상기 3D 비디오 기본 스트림은,베이스 레이어 비디오 스트림과 인핸스먼트 레이어 비디오 스트림으로 구성된 듀얼 비디오 스트림인 방법.
- 제3항에 있어서,상기 3D PVR 지원 정보는,해당 트랜스포트 스트림 패킷이 각 비디오 픽쳐의 시작점 또는 종료점을 포함하는지 지시하는 정보(Picture_start_end), 해당 트랜스포트 스트림 패킷에 들어 있는 비디오 기본 스트림이 RAP인지 여부를 지시하는 정보, 해당 픽쳐가 코딩 방식과 관련하여 베이스 레이어인지 익스텐디드 레이어인지 지시하는 정보, 해당 픽쳐가 레프트 뷰인지 라이트 뷰인지 지시하는 정보 중 적어도 하나 이상을 포함하는 방법.
- 제4항에 있어서,상기 3D PVR 지원 정보는,프로그램의 첫번째 픽쳐를 기준으로 각 픽쳐를 순차적으로 부여된 번호를 지시하는 프레임 정보와 상기 프레임 정보의 기준이 디코딩에 따른 순서인지 디스플레이에 따른 순서인지 식별하는 프레임 타입 정보를 더 포함하는 방법.
- 제5항에 있어서,상기 프레임 정보는,베이스/익스텐드 레이어 및 레프트/라이트 단위로 독립적으로 번호가 부여되며, 상기 베이스/익스텐드 또는 레프트/라이트에 대해 동일한 번호를 가진 픽쳐 페어가 존재하는 방법.
- 제6항에 있어서,상기 3D PVR 지원 정보는, 배속 정보를 더 포함하되,상기 배속 정보는, 해당 픽쳐를 이용해 2D 정상 배속 재생 가능 여부를 지시하는 정보, 해당 픽쳐를 이용해 3D 정상 배속 재생 가능 여부를 지시하는 정보, 해당 픽쳐를 이용해 2D 모드에서 n 배속 재생이 가능 여부를 지시하는 정보 및 해당 픽쳐를 이용해 3D 모드에서 n 배속 재생이 가능 여부를 지시하는 정보를 포함하는 방법.
- 제3항에 있어서,상기 3D PVR 지원 정보는,3D 또는 2D 프로그램에 해당되는 트랜스포트 스트림 패킷 중에서 모든 픽쳐의 첫번째 바이트 또는 마지막 바이트가 포함되는 트랜스포트 스트림 패킷의 adaptation_field에 포함되는 방법.
- 제8항에 있어서,상기 3D PVR 지원 정보는,상기 adaptation_field의 private data byte를 통해 전송되는 방법.
- 제9항에 있어서,상기 시스템 정보는,상기 3D PVR 지원 정보의 존재 여부를 식별하는 식별 정보를 더 포함하고,상기 식별 정보는 PSI의 PMT, PSIP의 TVCT 또는/및 EIT와 DVB의 SDT 또는/및 EIT 중 어느 하나에 포함되어 전송되는 방법.
- 3D 서비스를 위한 디지털 수신기에 있어서,3D 비디오 기본 스트림과 상기 3D 비디오 기본 스트림의 3D PVR 지원 정보를 포함한 시스템 정보를 수신하는 수신부;3D 비디오 기본 스트림에 타임-스탬프를 부가하고, 상기 3D PVR 지원 정보로부터 추출된 3D 기본 스트림의 3D PVR 기능 수행을 위한 정보가 포함된 인덱스 파일을 구성하여 저장되도록 제어하는 다운로드 모듈과, 저장된 3D 비디오 기본 스트림을 인덱스 파일과 타임-스탬프 값 중 적어도 하나에 기초하여 업로드하는 업로드 모듈을 포함한 PVR 모듈;업로드된 3D 비디오 기본 스트림을 디코딩하는 디코더;디코딩된 3D 비디오 데이터를 출력 포맷에 맞게 포맷팅하는 포맷터; 및포맷팅된 3D 비디오 데이터를 출력하는 출력부;를 포함하는 디지털 수신기.
- 제11항에 있어서,상기 PVR 모듈은,상기 인덱스 파일은, 해당 패킷에 대해L/R 여부, 베이스/인핸스먼트 레이어 여부, RAP 여부를 지시하는 픽쳐 타입 정보, 픽쳐 넘버에 대한 픽쳐 넘버 정보, 저장부 내 논리 또는 물리 주소를 지시하는 어드레스 정보 및 해당 픽쳐의 사이즈를 지시하는 사이즈 정보 중 적어도 하나 이상을 포함하는 디지털 수신기.
- 제12항에 있어서,상기 3D 비디오 기본 스트림은,베이스 레이어 비디오 스트림과 인핸스먼트 레이어 비디오 스트림으로 구성된 듀얼 비디오 스트림인 디지털 수신기.
- 제13항에 있어서,상기 3D PVR 지원 정보는,해당 트랜스포트 스트림 패킷이 각 비디오 픽쳐의 시작점 또는 종료점을 포함하는지 지시하는 정보(Picture_start_end), 해당 트랜스포트 스트림 패킷에 들어 있는 비디오 기본 스트림이 RAP인지 여부를 지시하는 정보, 해당 픽쳐가 코딩 방식과 관련하여 베이스 레이어인지 익스텐디드 레이어인지 지시하는 정보, 해당 픽쳐가 레프트 뷰인지 라이트 뷰인지 지시하는 정보 중 적어도 하나 이상을 포함하는 디지털 수신기.
- 제14항에 있어서,상기 3D PVR 지원 정보는,프로그램의 첫번째 픽쳐를 기준으로 각 픽쳐를 순차적으로 부여된 번호를 지시하는 프레임 정보와 상기 프레임 정보의 기준이 디코딩에 따른 순서인지 디스플레이에 따른 순서인지 식별하는 프레임 타입 정보를 더 포함하는 디지털 수신기.
- 제15항에 있어서,상기 프레임 정보는,베이스/익스텐드 레이어 및 레프트/라이트 단위로 독립적으로 번호가 부여되며, 상기 베이스/익스텐드 또는 레프트/라이트에 대해 동일한 번호를 가진 픽쳐 페어가 존재하는 디지털 수신기.
- 제16항에 있어서,상기 3D PVR 지원 정보는, 배속 정보를 더 포함하되,상기 배속 정보는, 해당 픽쳐를 이용해 2D 정상 배속 재생 가능 여부를 지시하는 정보, 해당 픽쳐를 이용해 3D 정상 배속 재생 가능 여부를 지시하는 정보, 해당 픽쳐를 이용해 2D 모드에서 n 배속 재생이 가능 여부를 지시하는 정보 및 해당 픽쳐를 이용해 3D 모드에서 n 배속 재생이 가능 여부를 지시하는 정보를 포함하는 디지털 수신기.
- 제13항에 있어서,상기 3D PVR 지원 정보는,3D 또는 2D 프로그램에 해당되는 트랜스포트 스트림 패킷 중에서 모든 픽쳐의 첫번째 바이트 또는 마지막 바이트가 포함되는 트랜스포트 스트림 패킷의 adaptation_field에 포함되는 디지털 수신기.
- 제18항에 있어서,상기 3D PVR 지원 정보는,상기 adaptation_field의 private data byte를 통해 전송되는 디지털 수신기.
- 제19항에 있어서,상기 시스템 정보는,상기 3D PVR 지원 정보의 존재 여부를 식별하는 식별 정보를 더 포함하고,상기 식별 정보는 PSI의 PMT, PSIP의 TVCT 또는/및 EIT와 DVB의 SDT 또는/및 EIT 중 어느 하나에 포함되어 전송되는 디지털 수신기.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180050027.6A CN103168473B (zh) | 2010-10-16 | 2011-10-17 | 数字接收机以及用于处理数字接收机中的3d 内容的方法 |
KR1020137002665A KR20140000662A (ko) | 2010-10-16 | 2011-10-17 | 디지털 수신기 및 디지털 수신기에서의 3d 컨텐트 처리방법 |
CA2816264A CA2816264C (en) | 2010-10-16 | 2011-10-17 | Digital receiver and method for processing 3d contents in digital receiver |
US13/823,516 US20130176387A1 (en) | 2010-10-16 | 2011-10-17 | Digital receiver and method for processing 3d contents in digital receiver |
EP11832792.3A EP2629530B1 (en) | 2010-10-16 | 2011-10-17 | Digital receiver and method for processing 3d contents in digital receiver |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39387610P | 2010-10-16 | 2010-10-16 | |
US61/393,876 | 2010-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012050405A2 true WO2012050405A2 (ko) | 2012-04-19 |
WO2012050405A3 WO2012050405A3 (ko) | 2012-06-07 |
Family
ID=45938831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/007700 WO2012050405A2 (ko) | 2010-10-16 | 2011-10-17 | 디지털 수신기 및 디지털 수신기에서의 3d 컨텐트 처리방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130176387A1 (ko) |
EP (1) | EP2629530B1 (ko) |
KR (1) | KR20140000662A (ko) |
CN (1) | CN103168473B (ko) |
CA (1) | CA2816264C (ko) |
WO (1) | WO2012050405A2 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013162292A1 (ko) * | 2012-04-24 | 2013-10-31 | 한국전자통신연구원 | 네트워크 적응적인 계층적 비디오 전송을 위한 mmt 패킷의 전송 방법 및 장치 |
WO2015093811A1 (ko) * | 2013-12-16 | 2015-06-25 | 엘지전자 주식회사 | 트릭 플레이 서비스 제공을 위한 신호 송수신 장치 및 신호 송수신 방법 |
WO2015115869A1 (ko) * | 2014-02-03 | 2015-08-06 | 엘지전자 주식회사 | 트릭 플레이 서비스 제공을 위한 신호 송수신 장치 및 신호 송수신 방법 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120058702A (ko) * | 2010-11-27 | 2012-06-08 | 전자부품연구원 | 디지털 방송에서 서비스 호환 방식 전송 방법 |
JP2015503281A (ja) * | 2011-11-23 | 2015-01-29 | エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュートElectronics And Telecommunications Research Institute | スケーラビリティ及びビュー情報を提供するストリーミングサービスのための方法及び装置 |
EP2800391A4 (en) * | 2011-12-27 | 2015-07-29 | Lg Electronics Inc | DIGITAL BROADCAST RECEIVING METHOD FOR DISPLAYING THREE-DIMENSIONAL IMAGE, AND CORRESPONDING RECEIVING DEVICE |
EP3614676B1 (en) | 2013-07-15 | 2023-11-08 | GE Video Compression, LLC | Layer id signaling using extension mechanism |
HUE056171T2 (hu) * | 2014-12-29 | 2022-01-28 | Sony Group Corp | Adókészülék, adási eljárás, vevõkészülék és vételi eljárás |
CN105357495B (zh) * | 2015-12-08 | 2019-04-12 | 浙江宇视科技有限公司 | 前后端配合智能分析的方法及装置 |
KR102484754B1 (ko) * | 2017-12-08 | 2023-01-06 | 삼성전자주식회사 | 영상처리장치 및 그 제어방법 |
US10692841B2 (en) | 2018-06-27 | 2020-06-23 | Micron Technology, Inc. | Semiconductor devices having through-stack interconnects for facilitating connectivity testing |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5844478A (en) * | 1996-05-31 | 1998-12-01 | Thomson Consumer Electronics, Inc. | Program specific information formation for digital data processing |
KR100495329B1 (ko) * | 2002-09-19 | 2005-06-13 | 주식회사 서울레이저발형시스템 | 슬릿 가공용 레이저 가공기 |
JP4224690B2 (ja) * | 2002-12-27 | 2009-02-18 | ソニー株式会社 | 記録方法、記録装置、再生方法、再生装置および撮像装置 |
CN100568964C (zh) * | 2003-02-18 | 2009-12-09 | 诺基亚有限公司 | 图像解码方法 |
KR100585966B1 (ko) * | 2004-05-21 | 2006-06-01 | 한국전자통신연구원 | 3차원 입체 영상 부가 데이터를 이용한 3차원 입체 디지털방송 송/수신 장치 및 그 방법 |
KR100658222B1 (ko) * | 2004-08-09 | 2006-12-15 | 한국전자통신연구원 | 3차원 디지털 멀티미디어 방송 시스템 |
CN101185326A (zh) * | 2005-05-27 | 2008-05-21 | 松下电器产业株式会社 | 广播记录和再现装置及其方法 |
KR100657322B1 (ko) * | 2005-07-02 | 2006-12-14 | 삼성전자주식회사 | 로컬 3차원 비디오를 구현하기 위한 인코딩/디코딩 방법 및장치 |
US20080115175A1 (en) * | 2006-11-13 | 2008-05-15 | Rodriguez Arturo A | System and method for signaling characteristics of pictures' interdependencies |
KR100905723B1 (ko) * | 2006-12-08 | 2009-07-01 | 한국전자통신연구원 | 비실시간 기반의 디지털 실감방송 송수신 시스템 및 그방법 |
KR100900856B1 (ko) * | 2007-07-13 | 2009-06-04 | 현대중공업 주식회사 | 수직 및 수평 필렛 용접용 자동용접장치의 제어시스템 및제어방법 |
JP4475336B2 (ja) * | 2008-02-08 | 2010-06-09 | ソニー株式会社 | タイムスタンプ付加装置およびタイムスタンプ付加方法、並びにプログラム |
JP5374909B2 (ja) * | 2008-04-10 | 2013-12-25 | 株式会社Ihi | マーキング装置 |
WO2010059005A2 (en) * | 2008-11-24 | 2010-05-27 | Lg Electronics, Inc. | Apparatus for receiving a signal and method of receiving a signal |
JP2010162586A (ja) * | 2009-01-19 | 2010-07-29 | Toray Eng Co Ltd | レーザ加工方法及びレーザ加工装置 |
US8326131B2 (en) * | 2009-02-20 | 2012-12-04 | Cisco Technology, Inc. | Signalling of decodable sub-sequences |
JP2010245970A (ja) * | 2009-04-08 | 2010-10-28 | Sony Corp | 再生装置、再生方法、およびプログラム |
US20110081133A1 (en) * | 2009-10-05 | 2011-04-07 | Xuemin Chen | Method and system for a fast channel change in 3d video |
-
2011
- 2011-10-17 US US13/823,516 patent/US20130176387A1/en not_active Abandoned
- 2011-10-17 CA CA2816264A patent/CA2816264C/en active Active
- 2011-10-17 EP EP11832792.3A patent/EP2629530B1/en active Active
- 2011-10-17 WO PCT/KR2011/007700 patent/WO2012050405A2/ko active Application Filing
- 2011-10-17 CN CN201180050027.6A patent/CN103168473B/zh active Active
- 2011-10-17 KR KR1020137002665A patent/KR20140000662A/ko not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
None |
See also references of EP2629530A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013162292A1 (ko) * | 2012-04-24 | 2013-10-31 | 한국전자통신연구원 | 네트워크 적응적인 계층적 비디오 전송을 위한 mmt 패킷의 전송 방법 및 장치 |
WO2015093811A1 (ko) * | 2013-12-16 | 2015-06-25 | 엘지전자 주식회사 | 트릭 플레이 서비스 제공을 위한 신호 송수신 장치 및 신호 송수신 방법 |
US10230999B2 (en) | 2013-12-16 | 2019-03-12 | Lg Electronics Inc. | Signal transmission/reception device and signal transmission/reception method for providing trick play service |
WO2015115869A1 (ko) * | 2014-02-03 | 2015-08-06 | 엘지전자 주식회사 | 트릭 플레이 서비스 제공을 위한 신호 송수신 장치 및 신호 송수신 방법 |
KR101819524B1 (ko) | 2014-02-03 | 2018-01-17 | 엘지전자 주식회사 | 트릭 플레이 서비스 제공을 위한 신호 송수신 장치 및 신호 송수신 방법 |
US10194182B2 (en) | 2014-02-03 | 2019-01-29 | Lg Electronics Inc. | Signal transmission and reception apparatus and signal transmission and reception method for providing trick play service |
Also Published As
Publication number | Publication date |
---|---|
EP2629530B1 (en) | 2016-09-07 |
CA2816264A1 (en) | 2012-04-19 |
CN103168473B (zh) | 2016-09-28 |
WO2012050405A3 (ko) | 2012-06-07 |
EP2629530A4 (en) | 2015-01-07 |
CN103168473A (zh) | 2013-06-19 |
EP2629530A2 (en) | 2013-08-21 |
KR20140000662A (ko) | 2014-01-03 |
CA2816264C (en) | 2017-04-11 |
US20130176387A1 (en) | 2013-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012050405A2 (ko) | 디지털 수신기 및 디지털 수신기에서의 3d 컨텐트 처리방법 | |
WO2009125961A1 (en) | Method of transmitting and receiving broadcasting signal and apparatus for receiving broadcasting signal | |
WO2011062385A2 (ko) | 방송 신호 송수신 방법 및 그를 이용한 방송 수신 장치 | |
WO2014171718A1 (ko) | 방송 전송 장치, 방송 수신 장치, 방송 전송 장치의 동작 방법 및 방송 수신 장치의 동작 방법 | |
WO2011049337A2 (ko) | 방송 신호 송수신 방법 및 그를 이용한 방송 수신 장치 | |
WO2010082783A2 (ko) | 비실시간 서비스 처리 방법 및 방송 수신기 | |
WO2011112053A2 (ko) | 비실시간 방송 서비스 처리 시스템 및 그 처리방법 | |
WO2010058958A2 (ko) | 비실시간 서비스 처리 방법 및 방송 수신기 | |
WO2011093676A2 (en) | Method and apparatus for generating data stream for providing 3-dimensional multimedia service, and method and apparatus for receiving the data stream | |
WO2015072754A1 (ko) | Hdr 방송 서비스 제공을 위한 방송 신호 송수신 방법 및 장치 | |
WO2009151267A2 (ko) | 서비스 제공 방법 및 방송 수신기 | |
WO2011105811A2 (en) | Method and apparatus for transmitting and receiving data | |
WO2010068040A2 (ko) | 비실시간 서비스 처리 방법 및 방송 수신기 | |
WO2015152635A9 (ko) | 신호 송수신 장치 및 신호 송수신 방법 | |
WO2010068033A2 (ko) | 비실시간 서비스 처리 방법 및 방송 수신기 | |
WO2014209057A1 (ko) | 지상파 방송망과 인터넷 프로토콜망 연동 기반의 하이브리드 방송 시스템에서 방송 서비스의 송수신 방법 및 장치 | |
WO2014025207A1 (en) | A method and an apparatus for processing a broadcast signal including an interactive broadcast service | |
WO2010071283A1 (ko) | 입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 | |
WO2013025035A9 (ko) | 송신 장치, 수신 장치 및 그 송수신 방법 | |
WO2011062386A2 (ko) | 방송 신호 송수신 방법 및 그를 이용한 방송 수신 장치 | |
WO2015126117A1 (ko) | 방송 신호 송수신 방법 및 장치 | |
WO2011132883A2 (ko) | 인터넷 기반 컨텐츠 송수신 방법 및 그를 이용한 송수신 장치 | |
WO2015065037A1 (ko) | Hevc 기반의 ip 방송 서비스 제공을 위한 방송 신호 송수신 방법 및 장치 | |
WO2015034306A1 (ko) | 디지털 방송 시스템에서 고화질 uhd 방송 컨텐츠 송수신 방법 및 장치 | |
WO2011074844A2 (en) | Method of processing non-real time service and broadcast receiver |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11832792 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 20137002665 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13823516 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2816264 Country of ref document: CA |
|
REEP | Request for entry into the european phase |
Ref document number: 2011832792 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011832792 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |