CN103986941A - Wireless audio and video transmission system - Google Patents
Wireless audio and video transmission system Download PDFInfo
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- CN103986941A CN103986941A CN201410232829.4A CN201410232829A CN103986941A CN 103986941 A CN103986941 A CN 103986941A CN 201410232829 A CN201410232829 A CN 201410232829A CN 103986941 A CN103986941 A CN 103986941A
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Abstract
The invention relates to a wireless audio and video transmission system. The wireless audio and video transmission system comprises an audio and video source end, a code processing module, a transmission module and a terminal device. The code processing module is respectively connected with the audio and video source end and the transmission module. The terminal device is connected with the transmission module. The wireless audio and video transmission system further comprises an RTSP transmission module. The code processing module comprises an audio and video collecting module, a first H.264 coder and an MPEG2-TS module. The transmission module comprises an upper layer transmission module and a bottom layer transmission module. The upper layer transmission module comprises an RTP transmission module and an RTCP transmission module. The bottom layer transmission module comprises a UDP transmission module and a TCP transmission module. The terminal device is respectively connected with the UDP transmission module and the TCP transmission module and used for receiving audio signals and video signals. The wireless audio and video transmission system has the advantages that audio and a video are transmitted smoothly and the transmission efficiency is high.
Description
Technical field
The present invention relates to a kind of wireless audio-video transmission system.
Background technology
Miracast is that Wi-Fi Alliance announces the Wi-FiCERTIFIED Miracast starting on September 19th, 2012
tMauthentication item; Miracast equipment provides to simplify and finds and arrange, and user can be rapidly at equipment room transmission of video; Miracast user can browse the photo that smart mobile phone takes heartily on large-size screen monitors TV, by conference room projectors Real-Time Sharing notebook screen, or on panel computer, watches the programme televised live of home television set top box.Miracast is by Wi-Fi CERTIFIED Wi-Fi Direct
tMform and connect, therefore without access, any Wi-Fi network---Miracast authenticating device inside possesses linkage function.At present, at equipment room, carry out audio-visual transmission, substantially all need to just can carry out by the network of wireless network or local area network (LAN).
Owing to using wireless transmission video to be, transmitting procedure is easy to be interfered, and while particularly carrying out video push, card easily appears in video screen, even flower screen.
Summary of the invention
In view of the above-mentioned problems in the prior art, main purpose of the present invention is to address the deficiencies of the prior art, and the invention provides a kind of Voice & Video transmission smoothness and the high wireless audio-video transmission system of efficiency.
The invention provides a kind of wireless audio-video transmission system, comprise audio frequency and video source, coding processing module, transport module and terminal equipment, described coding processing module is connected with described transport module with described audio frequency and video source respectively, described terminal equipment is connected with described transport module, also comprise RTSP transport module, wherein: described coding processing module comprises audio-video collection module, the one H.264 encoder and MPEG2-TS module, described audio-video collection module is connected with described audio frequency and video source, for gathering the audio and video frequency signal of described audio frequency and video source, the described the one H.264 encoder be connected with described audio-video collection module, for described audio and video frequency signal is compressed to processing, described MPEG2-TS module with the described the one H.264 encoder be connected, for to the described the one audio and video frequency signal of encoder compresses after the processing dividing processing of packing H.264, transport module comprises upper strata transport module and bottom transport module, described upper strata transport module comprises RTP transport module and RTCP transport module, described bottom transport module comprises UDP transport module and TCP transport module, described RTP transport module is connected with described MPEG2-TS module, for transmitting the audio and video frequency signal after packing dividing processing, described RTCP transport module is connected with described RTP transport module respectively with described RTSP transport module, described RTP transport module feeds back packet loss or delay by described RTCP transport module, described RTSP transport module is for real-time establishment of connection and communication, described RTP transport module transmits by described UDP transport module and described TCP transport module respectively, when transmitting by described UDP transport module when playing regular handset interface, can guarantee minimum time delay, in the time of displaying video on mobile phone, by described TCP transport module, transmit, can guarantee that film is more smooth with screen, described terminal equipment is connected with described TCP transport module with described UDP transport module respectively, for audio reception and vision signal.
Optionally, also comprise the 2nd encoder H.264, the described the 2nd H.264 encoder for the audio and video frequency signal that receives described bottom transport module and send and it is decoded, described terminal equipment with the described the 2nd H.264 encoder be connected, for the audio and video frequency signal after receipt decoding and show and play.
Optionally, described terminal equipment is TV, projecting apparatus or panel computer.
The present invention has the following advantages and beneficial effect: a kind of wireless audio-video transmission system that the embodiment of the present invention provides, have advantages of that transmission wireless audio and video smoothness and efficiency are high, and there is the features such as good, the long transmission distance of transmission picture and system delay are little simultaneously.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the wireless audio-video transmission system of the embodiment of the present invention.
Embodiment
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
As shown in Figure 1: a kind of wireless audio-video transmission system of the embodiment of the present invention, comprise audio frequency and video source 1, coding processing module 2, transport module 5 and terminal equipment 7, described coding processing module 2 is connected with described transport module 5 with described audio frequency and video source 1 respectively, described terminal equipment 7 is connected with described transport module 5, also comprise RTSP transport module 6, wherein: described coding processing module 2 comprises audio-video collection module 21, the one H.264 encoder 22 and MPEG2-TS module 23, described audio-video collection module 21 is connected with described audio frequency and video source 1, for gathering the audio and video frequency signal of described audio frequency and video source 1, the described the one H.264 encoder 22 be connected with described audio-video collection module 21, for described audio and video frequency signal is compressed to processing, described MPEG2-TS module 23 with the described the one H.264 encoder 22 be connected, for to the described the one audio and video frequency signal of encoder 22 compression after the processing dividing processing of packing H.264, transport module 5 comprises upper strata transport module 3 and bottom transport module 4, described upper strata transport module 3 comprises RTP transport module 32 and RTCP transport module 31, described bottom transport module 4 comprises UDP transport module 41 and TCP transport module 42, described RTP transport module 32 is connected with described MPEG2-TS module 23, for transmitting the audio and video frequency signal after packing dividing processing, described RTCP transport module 31 is connected with described RTP transport module 32 respectively with described RTSP transport module 6, described RTP transport module 32 feeds back packet loss or delay by described RTCP transport module 31, described RTSP transport module 6 is for establishment of connection and communication in real time, described RTP transport module 32 is connected with described TCP transport module 42 with described UDP transport module 41 respectively and transmits by described UDP transport module 41 and described TCP transport module 42, when transmitting by described UDP transport module 41 when playing regular handset interface, can guarantee minimum time delay, in the time of displaying video on mobile phone, by described TCP transport module 42, transmit, can guarantee that film is more smooth with screen, described terminal equipment 7 is connected with described TCP transport module 42 with described UDP transport module 41 respectively, for audio reception and vision signal, have advantages of that transmission wireless audio and video smoothness and efficiency are high, there is the features such as good, the long transmission distance of transmission picture and system delay are little simultaneously.
Preferred implementation as above-described embodiment, also comprise the 2nd encoder 8 H.264, the described the 2nd H.264 encoder 8 for the audio and video frequency signal that receives described bottom transport module 4 and send and it is decoded, described terminal equipment 7 with the described the 2nd H.264 encoder 8 be connected, for the audio and video frequency signal after receipt decoding and show and play.
As the preferred implementation of above-described embodiment, described terminal equipment 7 is TV, projecting apparatus or panel computer.
Finally it should be noted that: above-described each embodiment, only for technical scheme of the present invention is described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or to wherein partly or entirely technical characterictic be equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (3)
1. a wireless audio-video transmission system, it is characterized in that, comprise audio frequency and video source, coding processing module, transport module and terminal equipment, described coding processing module is connected with described transport module with described audio frequency and video source respectively, described terminal equipment is connected with described transport module, also comprise RTSP transport module, wherein:
Described coding processing module comprises audio-video collection module, the one H.264 encoder and MPEG2-TS module, described audio-video collection module is connected with described audio frequency and video source, for gathering the audio and video frequency signal of described audio frequency and video source, the described the one H.264 encoder be connected with described audio-video collection module, for described audio and video frequency signal is compressed to processing, described MPEG2-TS module with the described the one H.264 encoder be connected, for to the described the one audio and video frequency signal of encoder compresses after the processing dividing processing of packing H.264;
Transport module comprises upper strata transport module and bottom transport module, described upper strata transport module comprises RTP transport module and RTCP transport module, described bottom transport module comprises UDP transport module and TCP transport module, described RTP transport module is connected with described MPEG2-TS module, for transmitting the audio and video frequency signal after packing dividing processing, described RTCP transport module is connected with described RTP transport module respectively with described RTSP transport module, described RTP transport module feeds back packet loss or delay by described RTCP transport module, described RTSP transport module is for real-time establishment of connection and communication, described RTP transport module transmits by described UDP transport module and described TCP transport module respectively, when transmitting by described UDP transport module when playing regular handset interface, can guarantee minimum time delay, in the time of displaying video on mobile phone, by described TCP transport module, transmit, can guarantee that film is more smooth with screen,
Described terminal equipment is connected with described TCP transport module with described UDP transport module respectively, for audio reception and vision signal.
2. wireless audio-video transmission system according to claim 1, it is characterized in that, also comprise the 2nd encoder H.264, the described the 2nd H.264 encoder for the audio and video frequency signal that receives described bottom transport module and send and it is decoded, described terminal equipment with the described the 2nd H.264 encoder be connected, for the audio and video frequency signal after receipt decoding and show and play.
3. wireless audio-video transmission system according to claim 2, is characterized in that, described terminal equipment is TV, projecting apparatus or panel computer.
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| CN201410232829.4A CN103986941A (en) | 2014-05-28 | 2014-05-28 | Wireless audio and video transmission system |
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| CN201410232829.4A CN103986941A (en) | 2014-05-28 | 2014-05-28 | Wireless audio and video transmission system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980955A (en) * | 2015-06-19 | 2015-10-14 | 重庆市音乐一号科技有限公司 | Method for improving transfer rate of Wi-Fi Display |
| WO2016177248A1 (en) * | 2015-05-05 | 2016-11-10 | 阿里巴巴集团控股有限公司 | Method and device for encoding and decoding real-time media stream |
| CN106331568A (en) * | 2015-07-03 | 2017-01-11 | 华平智慧信息技术（深圳）有限公司 | Instant messaging method and system |
| WO2017101355A1 (en) * | 2015-12-18 | 2017-06-22 | 乐视控股（北京）有限公司 | Method and device for image processing |
| CN112073363A (en) * | 2020-07-08 | 2020-12-11 | 北京兰亭数字科技有限公司 | Cloud rendering low-delay high-guarantee transmission protocol operation method |
| CN115208864A (en) * | 2022-08-12 | 2022-10-18 | 阿波罗智联(北京)科技有限公司 | Data transmission method, device, equipment, vehicle and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050259613A1 (en) * | 2004-05-13 | 2005-11-24 | Harinath Garudadri | Method and apparatus for allocation of information to channels of a communication system |
| CN101282454A (en) * | 2008-05-14 | 2008-10-08 | 中山大学 | Video communication system based on IP set-top box |
| CN101778285A (en) * | 2010-02-09 | 2010-07-14 | 中国电信股份有限公司 | System and method for wireless transmission of audio and video signals |
| CN103051978A (en) * | 2012-12-16 | 2013-04-17 | 华南理工大学 | H264-based real-time mobile video service control method |
| CN103731645A (en) * | 2014-01-21 | 2014-04-16 | 中国华录集团有限公司 | Law enforcement and case handling system based on wireless video transmission technology |
-
2014
- 2014-05-28 CN CN201410232829.4A patent/CN103986941A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050259613A1 (en) * | 2004-05-13 | 2005-11-24 | Harinath Garudadri | Method and apparatus for allocation of information to channels of a communication system |
| CN101282454A (en) * | 2008-05-14 | 2008-10-08 | 中山大学 | Video communication system based on IP set-top box |
| CN101778285A (en) * | 2010-02-09 | 2010-07-14 | 中国电信股份有限公司 | System and method for wireless transmission of audio and video signals |
| CN103051978A (en) * | 2012-12-16 | 2013-04-17 | 华南理工大学 | H264-based real-time mobile video service control method |
| CN103731645A (en) * | 2014-01-21 | 2014-04-16 | 中国华录集团有限公司 | Law enforcement and case handling system based on wireless video transmission technology |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016177248A1 (en) * | 2015-05-05 | 2016-11-10 | 阿里巴巴集团控股有限公司 | Method and device for encoding and decoding real-time media stream |
| CN104980955A (en) * | 2015-06-19 | 2015-10-14 | 重庆市音乐一号科技有限公司 | Method for improving transfer rate of Wi-Fi Display |
| CN106331568A (en) * | 2015-07-03 | 2017-01-11 | 华平智慧信息技术（深圳）有限公司 | Instant messaging method and system |
| CN106331568B (en) * | 2015-07-03 | 2019-11-15 | 华平智慧信息技术（深圳）有限公司 | A kind of instant communication method, system and mobile terminal |
| WO2017101355A1 (en) * | 2015-12-18 | 2017-06-22 | 乐视控股（北京）有限公司 | Method and device for image processing |
| CN112073363A (en) * | 2020-07-08 | 2020-12-11 | 北京兰亭数字科技有限公司 | Cloud rendering low-delay high-guarantee transmission protocol operation method |
| CN115208864A (en) * | 2022-08-12 | 2022-10-18 | 阿波罗智联(北京)科技有限公司 | Data transmission method, device, equipment, vehicle and storage medium |
| CN115208864B (en) * | 2022-08-12 | 2024-02-06 | 阿波罗智联(北京)科技有限公司 | Data transmission method, device, equipment, vehicle and storage medium |
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Application publication date: 20140813 |
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