CN103986941A - Wireless audio and video transmission system - Google Patents

Wireless audio and video transmission system Download PDF

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Publication number
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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module
audio
video
transmission module
transmission
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CN201410232829.4A
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汪飞
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深圳市智英实业发展有限公司
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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

一种无线音视频传输系统 A radio transmission system, audio and video

技术领域 FIELD

[0001] 本发明涉及一种无线音视频传输系统。 [0001] The present invention relates to a wireless audio and video transmission systems.

背景技术 Background technique

[0002] Miracast 是W1-Fi Alliance 于2012 年9 月19 日宣布启动的W1-FiCERTIFIEDMiracast™认证项目;MiraCast设备提供简化发现和设置,用户可以迅速在设备间传输视频;MiraCast用户可以尽情在大屏电视上浏览智能手机拍下的照片,通过会议室投影仪实时共享笔记本屏幕,或者在平板电脑上收看家庭电视机顶盒的直播节目。 [0002] Miracast is W1-Fi Alliance, 2012 September 19 announced the launch of W1-FiCERTIFIEDMiracast ™ certification program; MiraCast devices provide simplified discovery and setup, users can quickly transfer video between devices; MiraCast users can enjoy the big screen Browse photos taken on smartphones TV, laptop screen through real-time sharing conference room projector, or watch home TV set-top boxes of live programming on a tablet. Miracast通过 Miracast by

W1-Fi CERTIFIED W1-Fi Direct™形成连接,因此无需接入任何W1-Fi网络-Miracast W1-Fi CERTIFIED W1-Fi Direct ™ connection is formed, there is no need of any W1-Fi access network -Miracast

认证设备内部具备连接功能。 Authentication device comprising internal connectivity. 目前,在设备间进行影音传送,基本都需要借助无线网或局域网的网络才可进行。 Currently, a video transmission between devices, the basic need the help of a wireless network or a local area network can be conducted.

[0003] 由于在使用无线传输视频是,传输过程很容易受到干扰,特别是进行视频推送时,电视屏幕容易出现卡顿,甚至花屏。 When the [0003] Due to the use of wireless transmission of video, the transfer process is very susceptible to interference, especially video push, the TV screen is easy Caton, and even video.

发明内容 SUMMARY

[0004] 鉴于现有技术中存在的上述问题,本发明的主要目的在于解决现有技术的缺陷,本发明提供一种音频和视频传输流畅以及效率高的无线音视频传输系统。 [0004] In view of the above-described problems in the prior art, the main object of the present invention is to solve the drawbacks of the prior art, the present invention provides an audio and video transmission smooth and efficient wireless audio and video transmission systems.

[0005] 本发明提供了一种无线音视频传输系统,包括音视频源端、编码处理模块、传输模块以及终端设备,所述编码处理模块分别与所述音视频源端和所述传输模块相连,所述终端设备与所述传输模块相连,还包括RTSP传输模块,其中:所述编码处理模块包括音视频采集模块、第一H.264编码器和MPEG2-TS模块,所述音视频采集模块与所述音视频源端相连,用于采集所述音视频源端的音频和视频信号,所述第一H.264编码器和所述音视频采集模块相连,用于对所述音频和视频信号进行压缩处理,所述MPEG2-TS模块和所述第一 [0005] The present invention provides a wireless audio and video transmission systems, including audio and video source coding processing module, a transmission module and a terminal device, the encoded processing module is connected to the audio-video source terminal and the transmission module, respectively the terminal device is connected to the transmission module, further comprising RTSP transmission module, wherein: the encoded audio and video capture module comprises a processing module, a first H.264 and MPEG2-TS encoder module, the audio and video capture module and the audio-video source terminal is connected for collecting the audio-video source audio and video signals, coupled to the first H.264 video encoder and the audio capture module, for the audio and video signals the compression process, the MPEG2-TS and said first module

H.264编码器相连,用于对所述第一H.264编码器压缩处理后的音频和视频信号进行打包分割处理;传输模块包括上层传输模块和底层传输模块,所述上层传输模块包括RTP传输模块和RTCP传输模块,所述底层传输模块包括m)P传输模块和TCP传输模块,所述RTP传输模块和所述MPEG2-TS模块相连,用于传输打包分割处理后的音频和视频信号,所述RTCP传输模块和所述RTSP传输模块分别与所述RTP传输模块相连,所述RTP传输模块通过所述RTCP传输模块来反馈丢包率或延迟,所述RTSP传输模块用于实时连接的建立和通讯,所述RTP传输模块分别通过所述UDP传输模块和所述TCP传输模块进行传输,当在播放普通手机界面时可通过所述UDP传输模块进行传输,可保证最小延时,当在手机上播放视频的时候通过所述TCP传输模块进行传输,可保证影片同屏更加流畅;所述终端设备分别与所述UDP H.264 encoder is connected for audio and video signals after the first compression process H.264 encoder packing division processing; transmission module comprises a transmission module, and an upper layer underlying transport module, the upper layer transmission module comprises an RTP RTCP transmission module and a transmission module, the transmission module comprises a bottom layer m) P TCP transport module and the transmission module, the transmission module and the RTP MPEG2-TS module is connected, for transmitting audio and video signals packaging after division processing, the RTCP transmission module and said transmission module each RTSP transmission module connected with the RTP, the RTP transmission module to feedback delay or packet loss rate by transmitting the RTCP module, a transmission module for establishing RTSP connection realtime and communications, the RTP transmission module respectively through a TCP UDP transport module and the transmission module for transmitting, when playing an ordinary mobile phone interface may be transmitted in the UDP transport module, ensure minimum delay, when the phone when played on the video transmitted through the TCP transport module, the same screen can be ensure smoother video; the terminal device with each of said UDP 输模块和所述TCP传输模块相连,用于接收音频和视频信号。 TCP transmission module and said transmission module is connected to receive audio and video signals.

[0006] 可选的,还包括第二H.264编码器,所述第二H.264编码器用于接收所述底层传输模块发送的音频和视频信号并对其进行解码,所述终端设备和所述第二H.264编码器相连,用于接收解码后的音频和视频信号并进行显示以及播放。 [0006] Optionally, further comprising a second H.264 encoder, H.264 encoder for the second audio and video signal receiving means for transmitting the underlay transmissions and decode the terminal device, and a second encoder coupled to H.264, an audio and video signal receiving and displaying the decoded and played. [0007] 可选的,所述终端设备为电视、投影仪或平板电脑。 [0007] Optionally, the terminal device is a TV, projector, or tablet.

[0008] 本发明具有以下优点和有益效果:本发明实施例提供的一种无线音视频传输系统,具有传输无线音视频流畅且效率高的优点,同时具有传输画面好、传输距离远和系统延迟小等特点。 [0008] The present invention has the following advantages and benefits: wireless audio and video transmission system according to an embodiment of the present invention, wireless audio and video transmission has advantages of high efficiency and smooth, while the picture having a good transmission, the transmission distance and the system delay and other small features.

附图说明 BRIEF DESCRIPTION

[0009] 图1为本发明实施例的无线音视频传输系统的原理框图。 Block diagram of the wireless audio and video transmission system, [0009] Figure 1 embodiment of the present invention.

具体实施方式 Detailed ways

[0010] 下面将参照附图和具体实施例对本发明作进一步的说明。 [0010] Next, with reference to the accompanying drawings and specific examples further illustrate the present invention.

[0011] 如图1所示:本发明实施例的一种无线音视频传输系统,包括音视频源端1、编码处理模块2、传输模块5以及终端设备7,所述编码处理模块2分别与所述音视频源端I和所述传输模块5相连,所述终端设备7与所述传输模块5相连,还包括RTSP传输模块6,其中:所述编码处理模块2包括音视频采集模块21、第一H.264编码器22和MPEG2-TS模块23,所述音视频采集模块21与所述音视频源端I相连,用于采集所述音视频源端I的音频和视频信号,所述第一H.264编码器22和所述音视频采集模块21相连,用于对所述音频和视频信号进行压缩处理,所述MPEG2-TS模块23和所述第一H.264编码器22相连,用于对所述第一H.264编码器22压缩处理后的音频和视频信号进行打包分割处理;传输模块5包括上层传输模块3和底层传输模块4,所述上层传输模块3包括RTP传输模块32和RTCP传输模块31,所述底层传输 [0011] As shown in FIG 1: wireless audio and video transmission system according to an embodiment of the present invention, including audio and video source 1, coding processing module 2, the transmission module 5 and a terminal device 7, the encoded processing module 2, respectively the audio-video source terminal I is connected to module 5 and the transmission, the terminal device 7 is connected to the transmission module 5, further comprising a transmission module RTSP 6, wherein: the encoded audio and video processing module 2 comprises a collection module 21, a first H.264 encoder 22 and MPEG2-TS module 23, the audio-video acquisition module 21 and the audio-video source terminal I is connected to the audio-video source for collecting terminal I of the audio and video signals, said a first H.264 encoder 22 and the audio-video capture module 21 is connected, for the audio and video signal compression process, the MPEG2-TS and the module 23 is connected to a first encoder 22 H.264 for the first encoder 22 H.264 compressed audio and video signal processing package dividing processing; transmitting module 5 comprises an upper layer 3 and the underlying transport module transmission module 4, the upper layer 3 comprises a transmission module transmitting RTP RTCP transmission module 32 and the module 31, the underlay transmissions 块4包括UDP传输模块41和TCP传输模块42,所述RTP传输模块32和所述MPEG2-TS模块23相连,用于传输打包分割处理后的音频和视频信号,所述RTCP传输模块31和所述RTSP传输模块6分别与所述RTP传输模块32相连,所述RTP传输模块32通过所述RTCP传输模块31来反馈丢包率或延迟,所述RTSP传输模块6用于实时连接的建立和通讯,所述RTP传输模块32分别与所述UDP传输模块41和所述TCP传输模块42相连并通过所述UDP传输模块41和所述TCP传输模块42进行传输,当在播放普通手机界面时可通过所述UDP传输模块41进行传输,可保证最小延时,当在手机上播放视频的时候通过所述TCP传输模块42进行传输,可保证影片同屏更加流畅;所述终端设备7分别与所述UDP传输模块41和所述TCP传输模块42相连,用于接收音频和视频信号,具有传输无线音视频流畅且效率高的优点,同时具有传输画面好、传输距离 4 comprises a block UDP transport module 41 and a TCP transport module 42, the RTP transmission module 32 and the module 23 is connected to the MPEG2-TS, audio and video signals for the transmission package division processing, the transmission module 31 and the RTCP said RTSP transmission module 32 is connected respectively to the 6 RTP transport module, the RTP transmission module 32 via the transmission module 31 to the RTCP feedback packet loss or delay, the transmission module 6 for establishing RTSP and real-time communications connections the RTP transmission module 32 are respectively connected to the UDP transport module 41 and the TCP transport module 42 and transmitted through the UDP transport module 41 and the TCP transport module 42, when playing an ordinary mobile phone interface by the UDP transport module 41 for transmission, ensure minimum delay, when playing the video on the phone for transmission over the TCP transport module 42, the same screen can be ensure smoother video; the terminal device 7, respectively, and the UDP transport module 41 and the TCP transport module 42 is connected to receive audio and video signals, the wireless transmission of audio and video has advantages of high efficiency and smooth, while the picture having a good transmission, the transmission distance 和系统延迟小等特点。 And system delays and other small features.

[0012] 作为上述实施例的优选实施方式,还包括第二H.264编码器8,所述第二H.264编码器8用于接收所述底层传输模块4发送的音频和视频信号并对其进行解码,所述终端设备7和所述第二H.264编码器8相连,用于接收解码后的音频和视频信号并进行显示以及播放。 [0012] As a preferred embodiment of the above embodiments, further comprising a second H.264 encoder 8, the second H.264 encoder 8 receives the underlay transmissions for audio transmission module 4 and the video signal and for decoding, the terminal device 7 and is connected to the second H.264 encoder 8 for audio and video signal receiving and displaying the decoded and played.

[0013] 作为上述实施例的优选实施方式,所述终端设备7为电视、投影仪或平板电脑。 [0013] As a preferred embodiment of the above embodiment, the terminal device 7 for television, projector, or tablet.

[0014] 最后应说明的是:以上所述的各实施例仅用于说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分或全部技术特征进行等同替换;而这些修改或替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 [0014] Finally, it should be noted that: each of the foregoing embodiments are illustrative only of the technical solution of the present invention, rather than limiting;. Although the present invention has been described in detail embodiments of ordinary skill in the art it should be understood that the art: it is still possible to modify the technical solutions described in the foregoing embodiment, or some or all of the technical features make equivalent replacements; such modifications or replacements do not cause the essence of corresponding technical solutions to depart from the respective embodiments of the present invention scope of the technical solutions.

Claims (3)

1.一种无线音视频传输系统,其特征在于,包括音视频源端、编码处理模块、传输模块以及终端设备,所述编码处理模块分别与所述音视频源端和所述传输模块相连,所述终端设备与所述传输模块相连,还包括RTSP传输模块,其中: 所述编码处理模块包括音视频采集模块、第一H.264编码器和MPEG2-TS模块,所述音视频采集模块与所述音视频源端相连,用于采集所述音视频源端的音频和视频信号,所述第一H.264编码器和所述音视频采集模块相连,用于对所述音频和视频信号进行压缩处理,所述MPEG2-TS模块和所述第一H.264编码器相连,用于对所述第一H.264编码器压缩处理后的音频和视频信号进行打包分割处理; 传输模块包括上层传输模块和底层传输模块,所述上层传输模块包括RTP传输模块和RTCP传输模块,所述底层传输模块包括UDP传输模块和TCP传输模块,所述RTP 1. A wireless audio and video transmission system comprising the audio and video source coding processing module, a transmission module and a terminal device, the encoded processing module is connected to the audio-video source terminal and the transmission module, respectively, the terminal device is connected to the transmission module, further comprising RTSP transmission module, wherein: the encoded audio and video capture module comprises a processing module, a first H.264 and MPEG2-TS encoder module, and the audio-video acquisition module the audio-video source terminal is connected for collecting the audio-video source audio and video signals, coupled to the first H.264 video encoder and the audio capture module, for the audio and video signals compression process module is connected to the MPEG2-TS and the first H.264 encoder, H.264 encoder for the first compressed audio and video signal processing package dividing processing; transmission module comprises an upper layer transmission module and an underlying transport module, the upper layer transmission module comprises a transmission module RTP and RTCP transmission module, the transmission module comprises a bottom UDP and TCP transport module transmission module, the RTP 传输模块和所述MPEG2-TS模块相连,用于传输打包分割处理后的音频和视频信号,所述RTCP传输模块和所述RTSP传输模块分别与所述RTP传输模块相连,所述RTP传输模块通过所述RTCP传输模块来反馈丢包率或延迟,所述RTSP传输模块用于实时连接的建立和通讯,所述RTP传输模块分别通过所述UDP传输模块和所述TCP传输模块进行传输,当在播放普通手机界面时可通过所述UDP传输模块进行传输,可保证最小延时,当在手机上播放视频的时候通过所述TCP传输模块进行传输,可保证影片同屏更加流畅; 所述终端设备分别与所述UDP传输模块和所述TCP传输模块相连,用于接收音频和视频信号。 And said transmission module MPEG2-TS module is connected, for transmitting audio and video signals packaging the division processing, the RTCP transmission module and said transmission module is connected to the RTSP RTP transmission module, respectively, by the RTP transmission module the transmission module RTCP feedback packet loss or delay, the RTSP transmission module for establishing communication and real-time connection, the RTP transmission module respectively transmitted through the UDP transport module and the TCP transport module, when normal playback can be performed by the mobile phone interface UDP transmission module, ensure minimum delay, when playing the video on the phone for transmission over the TCP transmission module, the same screen can be ensure smoother video; the terminal device respectively the UDP transport module and the TCP transport module is connected to receive audio and video signals.
2.根据权利要求1所述的无线音视频传输系统,其特征在于,还包括第二 H.264编码器,所述第二H.264编码器用于接收所述底层传输模块发送的音频和视频信号并对其进行解码,所述终端设备和所述第二H.264编码器相连,用于接收解码后的音频和视频信号并进行显示以及播放。 2. The wireless audio and video transmission system according to claim 1, characterized by further comprising a second H.264 encoder, the second encoder for audio and H.264 video module receives the underlay transmissions transmitted and decodes the signal, the H.264 terminal device and the second encoder is connected to the audio and video signal receiving and displaying the decoded and played.
3.根据权利要求2所述的无线音视频传输系统,其特征在于,所述终端设备为电视、投影仪或平板电脑。 3. The wireless audio and video transmission system according to claim 2, characterized in that the terminal device is a TV, projector, or tablet.
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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

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