CN100578610C - 音频处理 - Google Patents
音频处理 Download PDFInfo
- Publication number
- CN100578610C CN100578610C CN200480008912A CN200480008912A CN100578610C CN 100578610 C CN100578610 C CN 100578610C CN 200480008912 A CN200480008912 A CN 200480008912A CN 200480008912 A CN200480008912 A CN 200480008912A CN 100578610 C CN100578610 C CN 100578610C
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Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4347—Demultiplexing of several video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2665—Gathering content from different sources, e.g. Internet and satellite
-
- 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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Circuits (AREA)
Abstract
Description
DID(组1-4) | SMPTE 272M | 音频RTP |
FF<sub>h</sub>、FD<sub>h</sub>、FB<sub>h</sub>、F9<sub>h</sub> | 音频数据包 | 音频数据子包 |
FE<sub>h</sub>、FC<sub>h</sub>、FA<sub>h</sub>、F8<sub>h</sub> | 扩展数据包 | 音频数据&扩展数据子包 |
EF<sub>h</sub>、EE<sub>h</sub>、ED<sub>h</sub>、EC<sub>h</sub> | 控制数据包 | 控制数据子包 |
00<sub>h</sub> | 未定义格式 | 音频RTP有效载荷末端 |
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0307431.7 | 2003-03-31 | ||
GB0307431A GB2400254A (en) | 2003-03-31 | 2003-03-31 | Video processing |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1768374A CN1768374A (zh) | 2006-05-03 |
CN100578610C true CN100578610C (zh) | 2010-01-06 |
Family
ID=9955906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200480008912A Expired - Fee Related CN100578610C (zh) | 2003-03-31 | 2004-03-31 | 音频处理 |
Country Status (6)
Country | Link |
---|---|
US (2) | US20040255329A1 (zh) |
EP (2) | EP1478187A3 (zh) |
JP (2) | JP4525935B2 (zh) |
CN (1) | CN100578610C (zh) |
GB (1) | GB2400254A (zh) |
WO (1) | WO2004088926A2 (zh) |
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-
2003
- 2003-03-31 GB GB0307431A patent/GB2400254A/en not_active Withdrawn
-
2004
- 2004-03-26 EP EP04251758A patent/EP1478187A3/en not_active Withdrawn
- 2004-03-30 US US10/813,457 patent/US20040255329A1/en not_active Abandoned
- 2004-03-31 EP EP04724645.9A patent/EP1535275B8/en not_active Expired - Lifetime
- 2004-03-31 US US10/550,928 patent/US7996567B2/en active Active
- 2004-03-31 WO PCT/GB2004/001349 patent/WO2004088926A2/en active Application Filing
- 2004-03-31 JP JP2006506043A patent/JP4525935B2/ja not_active Expired - Fee Related
- 2004-03-31 JP JP2004105242A patent/JP2004312735A/ja not_active Abandoned
- 2004-03-31 CN CN200480008912A patent/CN100578610C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1535275A2 (en) | 2005-06-01 |
EP1478187A2 (en) | 2004-11-17 |
US20060192892A1 (en) | 2006-08-31 |
CN1768374A (zh) | 2006-05-03 |
GB0307431D0 (en) | 2003-05-07 |
GB2400254A (en) | 2004-10-06 |
JP4525935B2 (ja) | 2010-08-18 |
EP1535275B1 (en) | 2019-11-20 |
US7996567B2 (en) | 2011-08-09 |
EP1535275B8 (en) | 2019-12-25 |
WO2004088926A3 (en) | 2004-11-11 |
WO2004088926A2 (en) | 2004-10-14 |
US20040255329A1 (en) | 2004-12-16 |
JP2006522520A (ja) | 2006-09-28 |
EP1478187A3 (en) | 2005-07-06 |
JP2004312735A (ja) | 2004-11-04 |
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