WO2011076034A1 - 可视电话终端和调整可视电话的通话效果的方法 - Google Patents
可视电话终端和调整可视电话的通话效果的方法 Download PDFInfo
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- WO2011076034A1 WO2011076034A1 PCT/CN2010/078051 CN2010078051W WO2011076034A1 WO 2011076034 A1 WO2011076034 A1 WO 2011076034A1 CN 2010078051 W CN2010078051 W CN 2010078051W WO 2011076034 A1 WO2011076034 A1 WO 2011076034A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a videophone terminal and a method for adjusting a call effect of a videophone.
- the 3G videophone is implemented by the 3GPP-compliant 3G-324M protocol stack through the circuit switched domain.
- the two parties first connect the physical channel of 64 Kbit/s through the call setup protocol, and then start the interaction of the control signals through the physical channel. After the interaction of the control signals, the two parties establish an audio logical channel and a video logical channel.
- the audio/video data can be visually interacted with each other via an audio logical channel and a video logical channel.
- the object of the present invention is to provide a videophone terminal and a method for adjusting the call effect of the videophone, and adjust the audio and video effects by adjusting the ratio of the bandwidth to the video signal and the audio signal without increasing the bandwidth of the wireless channel.
- the purpose is to solve the problem of image and sound delay, jitter and blur caused by insufficient bandwidth.
- the invention provides a videophone terminal, comprising: a multiplexing table sending unit, configured to send a full video multiplexing entry and a full audio multiplexing entry to the opposite end;
- a multiplexing adjustment unit configured to: after receiving the adjustment instruction, multiplexing the data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the adjustment instruction, and multiplexing the data to the peer end Sending the multiplexed data;
- a demultiplexing unit configured to: send the received peer end according to the received full video multiplexing entry or the full audio multiplexing entry corresponding to the multiplexed data sent by the opposite end
- the multiplexed data is demultiplexed.
- the multiplexing adjustment unit includes:
- a first multiplexing adjustment module configured to receive a video priority adjustment instruction, multiplex data according to the full video multiplexing entry corresponding to the video priority adjustment instruction, and send the multiplexed data to the opposite end;
- a second multiplexing adjustment module configured to receive an audio priority adjustment instruction, multiplex the data according to the full audio multiplexing entry corresponding to the audio priority adjustment instruction, and send the multiplexed data to the opposite end.
- the videophone terminal further includes a multiplexing protocol data unit configured to transmit the multiplexed data to the opposite end, and the multiplexed code field in the header information included in the multiplex protocol data unit Identifying the full video multiplexing entry or the full audio multiplexing entry in the middle.
- a multiplexing protocol data unit configured to transmit the multiplexed data to the opposite end, and the multiplexed code field in the header information included in the multiplex protocol data unit Identifying the full video multiplexing entry or the full audio multiplexing entry in the middle.
- the demultiplexing unit is configured to: query the full video multiplexing entry or the full audio multiplexing entry according to an index value of the multiplexing code domain, and according to the corresponding full video that is queried And multiplexing the multiplexed data sent by the received peer to the corresponding data.
- the invention also provides a method for adjusting the call effect of a videophone, including
- the local end sends a full video multiplexing entry and a full audio multiplexing entry to the peer end;
- the local end After receiving the adjustment instruction, the local end multiplexes the data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the adjustment instruction, and sends the multiplexed data to the opposite end;
- the peer end receives the full video multiplexing entry corresponding to the multiplexed data or the full audio multiplexing An entry that demultiplexes the multiplexed data.
- the step of multiplexing the data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the adjustment instruction includes:
- the local end receives an audio priority adjustment instruction, and multiplexes the data according to the full audio multiplexing entry corresponding to the audio priority adjustment instruction.
- the method further includes: the multiplexed data is sent to the opposite end by using the multiplex protocol data unit, and the full video complex is identified in a multiplex code field in the header information included in the multiplex protocol data unit. Use table entries or full audio to multiplex table entries.
- the step of demultiplexing the multiplexed data by the peer end according to the received full video multiplexed entry or the full audio multiplexed entry corresponding to the multiplexed data includes:
- the multiplexed data is demultiplexed into corresponding data by using an entry.
- the invention achieves the purpose of adjusting the audio and video effects by adjusting the ratio of the bandwidth to the video signal and the audio signal without increasing the bandwidth of the wireless channel. If it is adjusted to video priority, all bandwidth is allocated to the video signal. If it is adjusted to audio priority, all bandwidth is allocated to the audio signal. By default, the audio and video signals are mixed and transmitted without control.
- the user can switch video priority or audio priority at any time during the video call, and the effect of the video call will not be affected during the switching process.
- Video priority ensures that the video quality is smooth and clear, suitable for viewing pure image information.
- Audio priority can ensure the audio quality is smooth and clear, and meet the user's requirements for the quality of the audio call; it can effectively enhance the user experience, facilitate the user's flexible use, avoid image delay, jitter and blur caused by insufficient bandwidth.
- 1 is a flow chart of an embodiment of a method for adjusting a call effect of a videophone according to the present invention
- 2 is a schematic diagram of an interface for multiplexing adjustment according to an embodiment of the present invention
- FIG. 3 is a specific flowchart of a method for adjusting a call effect of a videophone according to an embodiment of the present invention
- FIG. 4 is another flowchart of a method for adjusting a call effect of a videophone according to an embodiment of the present invention
- FIG. 6 is another schematic structural diagram of a videophone terminal according to an embodiment of the present invention.
- the present invention does not make adjustments by default during the video call, and is an ordinary video call effect, which is mixed with audio frames and video frames.
- the bandwidth occupied by the video frame is increased, and the bandwidth occupied by the audio frame is reduced.
- the bandwidth occupied by the audio frame is increased, and the video frame is occupied. Bandwidth.
- the video call terminal uses a multiplex protocol data unit (MUX-PDU) to carry logical channels such as audio and video, and the multiplex table determines a mode in which each bit (bit) of the multiplex protocol data unit is allocated to the audio and video logical channels. That is, the logical channel to which each byte belongs is determined.
- Each multiplex protocol data unit contains one byte of header information and a number of bytes of information.
- the header information has a 4-bit multiplexed code (MC) field that indicates the indexed multiplex table entry.
- the local end When the video call is initialized, the local end sends a multiplexing table including the full video and the full audio multiplexing table to the receiving end through the H.245 control signal, and after entering the video call, the local end pairs each multiplexing protocol data.
- the unit multiplexes data with a full video or full audio multiplex table entry, and indexes the multiplex table entry in a multiplex code field of the multiplex protocol data unit. Therefore, the data sent to the peer is full video or full audio.
- the peer After receiving the multiplexed protocol data unit, the peer first finds a full video or full audio multiplexed entry according to the index value of the multiplexed code domain, and then performs data demultiplexing on the multiplexed protocol data unit according to the multiplexed entry. .
- FIG. 1 is a flow chart of an embodiment of a method for adjusting a call effect of a videophone according to the present invention.
- Both the local end and the opposite end are videophone terminals based on the circuit domain of the mobile communication network, and are used.
- the local end of the present invention refers to the calling party, and the opposite end refers to the called party.
- the local end and the opposite end referred to in the present invention are opposite, and during the video call, the calling party is called. Both parties can adjust the call effect of the videophone.
- Step S101 The local end sends a multiplexing table including a full video multiplexing entry and a full audio multiplexing entry to the peer end.
- Step S102 After receiving the adjustment instruction, the local end multiplexes the data according to the multiplexing table including the full video multiplexing entry and the full audio multiplexing entry, and sends the multiplexed data to the opposite end.
- the multiplexed data is transmitted through the multiplex protocol data unit, and the full video multiplexed entry and the full audio multiplexed entry are indexed in the multiplexed code field of the multiplexed protocol data unit.
- Step S103 The peer end demultiplexes the multiplexed data according to the multiplexing table including the full video multiplexing entry and the full audio multiplexing entry.
- the full video multiplexed entry and the full audio multiplexed entry are first queried according to the index value of the multiplexed code domain.
- the peer end After the peer end performs data demultiplexing on each of the received multiplexing protocol data units according to the multiplexing table of the multiplexed code domain index, all the bytes of the multiplexed protocol data unit are demultiplexed into video data or audio data. Then, through the decoding of the codec, clear and continuous image information or voice information is obtained which is better than the default mode.
- Table 1 shows the meaning of multiplexing used in the present invention.
- the entry with sequence number 1 is the multiplexed entry of all audio
- the entry with sequence number 2 is the multiplex table entry of the full video
- the entry with sequence number 3 is the multiplex table of the audio and video mix.
- LCN1 represents logical channel 1 for transmitting data and control information
- LCN2 represents logical channel 2 for transmitting digital audio
- LCN3 represents logical channel 3 for transmitting digital video.
- FIG. 2 is a schematic diagram of an interface for multiplexing adjustment according to an embodiment of the present invention.
- Users can choose through this interface "Video priority" or "audio priority”, the videophone terminal uses a full video multiplexing entry or a full audio multiplexing entry to multiplex the data, and at the same time, the value of the multiplexed code field in the multiplexed protocol data unit is set. It is 0001 or 0002, which means that all video multiplexing entries or full audio multiplexing entries are used to multiplex data.
- the videophone terminal uses the default multiplexing table item to multiplex the data, and sets the value of the multiplexed code field in the multiplex protocol data unit to 0003, indicating that the default is used. Multiplexing entries reuse data.
- the multiplex entry is sent by the H.245 MultiplexEntrySend request message during the video call initialization, and the following message is added to the original multiplex table entry message, indicating that the full video and the full audio are included.
- the multiplex table entry is sent to the peer.
- multiplexEntryDescriptors ⁇ multiplexTableEntryNumber 1, ⁇ / multiplex table entry index number is 1 elementList ⁇ type logicalChannelNumber: 2, ⁇ / logical channel 2 bearer repeatCount untilClosingFlag: NULL
- multiplexTableEntryNumber 2 ⁇ / multiplex table entry index number is 2 elementList ⁇
- FIG. 3 is a specific flowchart of a method for adjusting a call effect of a videophone according to an embodiment of the present invention. Step S201, the local end establishes a visual call channel with the opposite end.
- Step S202 The local end sends a multiplexing table including a full video multiplexing entry and a full audio multiplexing entry to the peer end.
- the local end and the opposite end enter a visual call state. If the user adjusts to the video priority mode in the video call state, select "video priority" on the multiplexing adjustment interface to issue a video priority adjustment command to the videophone terminal, and then Go to step S203.
- Step S203 After receiving the video priority adjustment command, the local end multiplexes the data according to the full video multiplexing entry, and sends the multiplexed data to the opposite end.
- Step S204 The peer end demultiplexes the multiplexed data according to the full video multiplexing entry.
- the local end and the opposite end enter the video priority mode. If the user adjusts to the default mode in the video priority mode, select "no adjustment" on the multiplexing adjustment interface to issue a no-adjustment command to the videophone terminal, and then proceeds to step S205.
- Step S205 After receiving the no adjustment command, the local end multiplexes the data according to the multiplexed item of the audio and video mix, and sends the multiplexed data to the opposite end.
- Step S206 The peer end demultiplexes the multiplexed data according to the multiplexed item of the audio and video mixture.
- Step S207 the phone is hung up, the videophone releases the protocol stack, and the session ends.
- FIG. 4 is another flow chart of a method for adjusting a call effect of a videophone according to an embodiment of the present invention. As shown in Figure 4, the following steps are included:
- Step S301 The local end sends a full video multiplexing entry and a full audio multiplexing entry to the peer end.
- Step S302 After receiving the adjustment command, the local end multiplexes the data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the adjustment instruction, and sends the multiplexed data to the opposite end.
- the step S303 may specifically include:
- Step S303a the local end receives a video priority adjustment instruction, and according to the video priority adjustment instruction Corresponding full video multiplexing entries to reuse data; or
- Step S303b The local end receives an audio priority adjustment instruction, and multiplexes the data according to the full audio multiplexing entry corresponding to the audio priority adjustment instruction;
- Step S303c The local end receives no adjustment instruction, and multiplexes the data according to the audio-video hybrid multiplexing entry corresponding to the non-adjustment instruction.
- Step S305 The peer end demultiplexes the multiplexed data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the received multiplexed data.
- the step S303 and the step S305 may further include: Step S304, the multiplexed data is sent to the peer end through the multiplexing protocol data unit, and the multiplexing code in the header information included in the multiplexing protocol data unit A full video multiplexed entry or a full audio multiplexed entry is identified in the domain.
- step S305 may be specifically: the peer end queries the full video multiplexing entry or the full audio multiplexing entry according to the index value of the multiplexing code domain, and according to the corresponding full video multiplexing entry or the full audio multiplexing.
- the entry demultiplexes the multiplexed data into corresponding data.
- the step S305 can include:
- Step S305a The peer end queries according to the index value of the multiplexed code domain. If the multiplexed data is queried corresponding to the full video multiplexed entry, the multiplexed data is demultiplexed according to the corresponding full video multiplexed entry. For the corresponding data; or
- Step S305b The peer end queries according to the index value of the multiplexed code domain. If the multiplexed data is queried corresponding to the full audio multiplexed entry, the multiplexed data is demultiplexed according to the corresponding full audio multiplexed entry. For the corresponding data.
- FIG. 5 is a schematic structural diagram of a videophone terminal according to an embodiment of the present invention.
- the videophone terminal 40 includes a multiplexing table transmitting unit 401, a multiplexing adjusting unit 402, and a demultiplexing unit 403.
- the multiplex table sending unit 401 is configured to send a multiplex table including the full video multiplex table entry and the full audio multiplex table entry to the opposite end.
- the multiplexing adjustment unit 402 is configured to: after receiving the adjustment instruction, according to the full video multiplexing entry and the full The multiplexing table of the audio multiplexing entry multiplexes the data, and transmits the multiplexed data to the opposite end.
- the demultiplexing unit 403 is configured to demultiplex the multiplexed data according to a multiplexing table including a full video multiplexing entry and a full audio multiplexing table entry.
- the multiplexing adjustment unit 402 is further configured to index the full video multiplexing entry and the full audio multiplexing entry in the multiplexing code field of the multiplexing protocol data unit.
- the demultiplexing unit 403 is further configured to query the full video multiplexing entry and the full audio multiplexing entry according to the index value of the multiplexing code domain.
- FIG. 6 is another schematic structural diagram of a videophone terminal according to an embodiment of the present invention.
- the videophone terminal includes: a multiplexing table sending unit 610, configured to send a full video multiplexing entry and a full audio multiplexing entry to the opposite end; and a multiplexing adjustment unit 620 configured to: after receiving the adjustment command And multiplexing the data according to the full video multiplexing entry or the full audio multiplexing entry corresponding to the adjustment instruction, and transmitting the multiplexed data to the opposite end; and the demultiplexing unit 630, configured to: receive according to The all-video multiplexed entry or the full-audio multiplexed entry corresponding to the multiplexed data sent by the peer end is demultiplexed with the multiplexed data sent by the received peer.
- the multiplexing adjustment unit 620 may specifically include: a first multiplexing adjustment module 621 configured to receive a video priority adjustment instruction, and multiplex the data according to the full video multiplexing entry corresponding to the video priority adjustment instruction, and Transmitting the multiplexed data to the peer end; and the second multiplexing adjustment module 622 is configured to receive the audio priority adjustment instruction, and multiplex the data according to the full audio multiplexing entry corresponding to the audio priority adjustment instruction, and Send the multiplexed data to the peer.
- a first multiplexing adjustment module 621 configured to receive a video priority adjustment instruction, and multiplex the data according to the full video multiplexing entry corresponding to the video priority adjustment instruction, and Transmitting the multiplexed data to the peer end
- the second multiplexing adjustment module 622 is configured to receive the audio priority adjustment instruction, and multiplex the data according to the full audio multiplexing entry corresponding to the audio priority adjustment instruction, and Send the multiplexed data to the peer.
- the videophone terminal may further include: a multiplexing protocol data unit 640 configured to transmit the multiplexed data to the opposite end through the multiplexing, and the multiplexing in the header information included in the multiplexing protocol data unit 640
- the code domain identifies a full video multiplexed entry or a full audio multiplexed entry.
- the demultiplexing unit 630 may be configured to: query the full video multiplexed entry or the full audio multiplexed entry according to the index value of the multiplexed code domain, and according to the queried corresponding full video multiplexed entry or all The audio multiplexing entry demultiplexes the received multiplexed data sent by the peer end into corresponding data.
- the invention allocates all the bandwidth to the video signal if it is adjusted to the video priority without increasing the bandwidth of the wireless channel, and allocates all the bandwidth to the audio signal if adjusted to the audio priority, by default Without control, the audio and video signals are mixed and sent.
- the user can switch video priority or audio priority at any time during the video call, and the effect of the video call will not be affected during the switching process.
- Video priority ensures smooth and clear video quality and is suitable for viewing pure image information.
- Audio priority can ensure smooth and clear audio quality, meet the user's requirements for the quality of audio calls; can effectively enhance the user experience, facilitate the flexible use of users, avoid image delay, jitter and blur caused by insufficient bandwidth.
- the present invention allocates all bandwidth to a video signal if it is adjusted to video priority without increasing the bandwidth of the wireless channel, and allocates all bandwidth to the audio signal if adjusted to audio priority, and does not control by default.
- the user can switch video priority or audio priority at any time during the video call, and the effect of the video call will not be affected during the switching process.
- Video priority ensures that the video quality is smooth and clear, suitable for viewing pure image information.
- Audio priority ensures smooth and clear audio quality and meets the user's requirements for the quality of audio calls. It can effectively enhance the user experience, and is convenient for users to use, avoiding image delay, jitter, and blur caused by insufficient bandwidth.
Abstract
本发明公开了一种可视电话终端和调整可视电话的通话效果的方法。其中方法包括：本端向对端发送全视频复用表项和全音频复用表项；本端接收到调整指令后，根据与所述调整指令对应的所述全视频复用表项或所述全音频复用表项对数据进行复用，并向对端发送复用后的数据；对端根据接收到所述复用后的数据对应的全视频复用表项或全音频复用表项，对所述复用后的数据进行解复用。可视电话终端包括复用表发送单元、复用调整单元以及解复用单元。本发明在不增加无线信道带宽的情况下，可以灵活调整分给音、视频信号的带宽，可以有效提升用户体验，避免带宽不够带来的图像声音延迟、抖动以及模糊等。
Description
可视电话终端和调整可视电话的通话效果的方法
技术领域
本发明涉及无线通讯技术领域， 尤其涉及一种可视电话终端和调整可视 电话的通话效果的方法。
背景技术
随着 3G可视电话逐渐走进普通消费者的生活， 使得普通消费者可以使 用可视电话进行语音和图像的交流， 通过图像用户可以看到对方的表情， 所 处的场景等。
3G可视电话釆用 3GPP规范的 3G-324M协议栈， 通过电路交换域实现。 当可视电话发起时， 首先双方通过呼叫建立协议接通 64Kbit/s的物理信道， 然后通过物理信道开始控制信号的交互， 经过控制信号的交互， 双方建立起 音频逻辑信道和视频逻辑信道， 双方的音频 /视频数据就可经过音频逻辑信道 和视频逻辑信道与对方进行可视交互。
目前，可视通话的 64Kbit/s的物理信道带宽中有 12.2Kbit/s用于传输音频 帧， 剩余带宽用于传输视频帧。 因此传输视频帧所用的 40Kbit/s左右的带宽 只能承载最大 15 s的视频帧速率， 图像显示效果一般。在网络较差的情况下 同时传输音视频数据， 就会产生音视频的时延、 异步、 严重的马赛克现象、 声音断断续续等问题， 严重影响可视电话的通话效果。
发明内容
本发明的目的在于提供一种可视电话终端和调整可视电话的通话效果的 方法， 在不增加无线信道带宽的情况下， 通过调整带宽分给视频信号和音频 信号的比例达到调整音视频效果的目的， 从而解决因带宽不够带来的图像和 声音延迟、 抖动以及模糊的问题。
本发明提供一种可视电话终端， 包括:
复用表发送单元， 其设置为向对端发送全视频复用表项和全音频复用表 项；
复用调整单元， 其设置为： 接收到调整指令后， 根据与所述调整指令对 应的所述全视频复用表项或所述全音频复用表项对数据进行复用， 并向对端 发送复用后的数据； 以及
解复用单元， 其设置为： 根据接收到的对端发来的复用后的数据对应的 全视频复用表项或全音频复用表项， 对所述接收到的对端发来的复用后的数 据进行解复用。
优选的， 所述复用调整单元包括：
第一复用调整模块， 其设置为接收视频优先调整指令， 根据与所述视频 优先调整指令对应的全视频复用表项对数据进行复用， 并向对端发送复用后 的数据； 以及
第二复用调整模块， 其设置为接收音频优先调整指令， 根据与所述音频 优先调整指令对应的全音频复用表项对数据进行复用， 并向对端发送复用后 的数据。
优选的， 所述可视电话终端还包括复用协议数据单元， 其设置为通过其 向对端发送复用后的数据， 且在该复用协议数据单元包含的头信息中的复用 代码域中标识所述全视频复用表项或全音频复用表项。
优选的， 上述解复用单元是设置为： 按照所述复用代码域的索引值查询 所述全视频复用表项或所述全音频复用表项， 并根据查询到的对应的全视频 复用表项或全音频复用表项， 将所述接收到的对端发来的复用后的数据解复 用为对应的数据。
本发明还提供一种调整可视电话的通话效果的方法， 包括
本端向对端发送全视频复用表项和全音频复用表项；
本端接收到调整指令后， 根据与所述调整指令对应的所述全视频复用表 项或所述全音频复用表项对数据进行复用， 并向对端发送复用后的数据； 对端根据接收到所述复用后的数据对应的全视频复用表项或全音频复用
表项， 对所述复用后的数据进行解复用。
优选的， 所述本端接收到调整指令后， 根据与所述调整指令对应的所述 全视频复用表项或所述全音频复用表项对数据进行复用的步骤包括：
所述本端接收视频优先调整指令， 根据与所述视频优先调整指令对应的 全视频复用表项对数据进行复用； 或
所述本端接收音频优先调整指令， 根据与所述音频优先调整指令对应的 全音频复用表项对数据进行复用。
优选的， 该方法还包括： 复用后的数据通过复用协议数据单元发送到对 端， 并且在所述复用协议数据单元包含的头信息中的复用代码域中标识所述 全视频复用表项或全音频复用表项。
优选的， 所述对端根据接收到所述复用后的数据对应的全视频复用表项 或全音频复用表项， 对所述复用后的数据进行解复用的步骤包括：
所述对端按照所述复用代码域的索引值查询所述全视频复用表项或所述 全音频复用表项，并根据查询到的对应的全视频复用表项或全音频复用表项， 将所述复用后的数据解复用为对应的数据。
本发明在不增加无线信道带宽的情况下， 通过调整带宽分给视频信号和 音频信号的比例达到调整音视频效果的目的。 若调整为视频优先则将所有带 宽分给视频信号， 若调整为音频优先则将所有带宽分给音频信号， 默认情况 下不做控制， 将音视频信号混合发送。 用户在可视通话中可以随时切换视频 优先还是音频优先， 切换过程中不会对可视通话的效果造成影响。 视频优先 可以保证视频质量流畅清晰， 适合观看纯图像信息的场景。 音频优先可以保 证音频质量流畅清晰， 满足用户对音频通话的质量的要求； 可以有效提升用 户体验， 方便用户的灵活使用， 避免带宽不够带来的图像声音延迟、 抖动以 及模糊等。
附图概述
图 1为本发明调整可视电话的通话效果的方法一实施例的流程图；
图 2为本发明实施例复用调整的界面示意图；
图 3为本发明实施例调整可视电话的通话效果的方法的具体流程图; 图 4为本发明实施例调整可视电话的通话效果的方法的另一流程图; 图 5为本发明实施例可视电话终端的结构示意图；
图 6为本发明实施例可视电话终端的另一结构示意图。
本发明的较佳实施方式
下面结合附图和具体实施例对本发明技术方案作进一步的详细描述， 以 使本领域的技术人员可以更好的理解本发明并能予以实施， 但所举实施例不 作为对本发明的限定。
本发明在可视通话过程中， 默认情况下不作调整， 为普通的可视通话效 果， 釆用音频帧和视频帧混合发送。 当用户需要发送清晰流畅的图像时就提 高视频帧所占用的带宽， 同时降低音频帧所占用的带宽； 当用户只需要保证 通话音质时就提高音频帧所占用的带宽， 同时降低视频帧所占用的带宽。
可视通话终端使用复用协议数据单元（ MUX-PDU )承载音频， 视频等逻 辑信道， 复用表项决定复用协议数据单元中每个位（bit )分配给音频和视频 逻辑信道的模式， 即确定每个字节所属的逻辑信道。 每一个复用协议数据单 元均包含一个字节的头信息和若干字节的信息， 其头信息中有 4个位的复用 代码（MC )域， 该域指明所索引的复用表项。
在可视通话初始化时， 本端通过 H.245控制信号发送包括全视频和全音 频的复用表项的复用表给接收端， 进入可视通话后， 本端对每个复用协议数 据单元釆用全视频或者全音频的复用表项进行数据复用， 并在复用协议数据 单元的复用代码域中索引该复用表项。 因此发送到对端的就是全视频或者全 音频的数据信息。 对端收到复用协议数据单元后， 首先按照复用代码域的索 引值找到全视频或者全音频的复用表项， 之后按照该复用表项对复用协议数 据单元进行数据解复用。
图 1为本发明调整可视电话的通话效果的方法一实施例的流程图。
本端和对端都是基于移动通信网络电路域的可视电话终端， 使用
3G-324M协议集的协议栈，具有 3G-324M协议集规定的编解码器和音视频设 备等。 需要说明的是， 本发明的本端是指主叫方， 对端是指被叫方， 本发明 中所指的本端和对端是相对的， 而且在可视通话过程中， 主被叫双方都可以 进行可视电话的通话效果的调整。
步骤 S101 , 本端向对端发送包括全视频复用表项和全音频复用表项的复 用表。
步骤 S 102, 本端收到调整指令后， 根据包括全视频复用表项和全音频复 用表项的复用表对数据进行复用， 向对端发送复用后的数据。 在本实施例中， 复用后的数据通过复用协议数据单元发送， 并且在复用协议数据单元的复用 代码域中索引全视频复用表项和全音频复用表项。
步骤 S103 , 对端根据包括全视频复用表项和全音频复用表项的复用表对 复用后的数据进行解复用。 在本实施例中， 对端对复用后的数据进行解复用 之前，首先按照复用代码域的索引值查询全视频复用表项和全音频复用表项。 对端对接收的每个复用协议数据单元按照复用代码域索引的复用表项进行数 据解复用后，将复用协议数据单元的字节全部解复用为视频数据或音频数据， 然后通过编解码器的解码就得到比默认模式更好的清晰连续的图像信息或语 音信息。
表 1所示为本发明所使用的复用表示意。 表 1
如表 1所示， 序号为 1的表项为全音频的复用表项， 序号为 2的表项为 全视频的复用表项， 序号为 3 的表项为音视频混合的复用表项。 LCN1表示 逻辑信道 1 , 用于传送数据和控制信息； LCN2表示逻辑信道 2, 用于传送数 字音频； LCN3表示逻辑信道 3 , 用于传送数字视频。
图 2为本发明实施例复用调整的界面示意图。 用户可通过在该界面选择
"视频优先" 或者 "音频优先" ， 可视电话终端则采用全视频复用表项或者 全音频复用表项对数据进行复用， 同时将复用协议数据单元中复用代码域的 值置为 0001或者 0002, 表示釆用的是全视频复用表项或者全音频复用表项 对数据进行复用。 当用户选择 "不作调整" 时， 可视电话终端釆用默认复用 表项对数据进行复用，同时将复用协议数据单元中复用代码域的值置为 0003 , 表示釆用的是默认复用表项对数据进行复用。
在本实施例中， 复用表项在可视通话初始化时通过 H.245 的 MultiplexEntrySend请求消息发送， 在原有的复用表项发送消息基础上增加如 下消息， 表示将包含全视频和全音频的复用表项发送到对端。
request： multiplexEntrySend： {
sequenceNumber 1,
multiplexEntryDescriptors { multiplexTableEntryNumber 1,〃〃/复用表项索引号为 1 elementList { type logicalChannelNumber： 2,〃/逻辑信道 2承载 repeatCount untilClosingFlag： NULL
multiplexTableEntryNumber 2,〃〃/复用表项索引号为 2 elementList {
{
type logicalChannelNumber ： 3, ///////逻辑信道 3 承载视频 repeatCount untilClosingFlag： NULL
图 3为本发明实施例调整可视电话的通话效果的方法的具体流程图。 步骤 S201 , 本端与对端建立可视通话通道。
步骤 S202 , 本端向对端发送包括全视频复用表项和全音频复用表项的复 用表。
接着本端与对端进入可视通话状态， 在可视通话状态下如果用户调整为 视频优先模式， 则在复用调整界面上选择 "视频优先" 向可视电话终端发出 视频优先调整指令， 接着进入步骤 S203。
步骤 S203 , 本端收到视频优先调整指令后， 根据全视频复用表项对数据 进行复用， 向对端发送复用后的数据。
步骤 S204 , 对端根据全视频复用表项对复用后的数据进行解复用。
接着本端与对端进入视频优先模式， 在视频优先模式下如果用户调整为 默认模式， 则在复用调整界面上选择 "不作调整" 向可视电话终端发出不作 调整指令， 接着进入步骤 S205。
步骤 S205 , 本端收到不作调整指令后， 根据音视频混合的复用表项对数 据进行复用， 向对端发送复用后的数据。
步骤 S206 ,对端根据音视频混合的复用表项对复用后的数据进行解复用。 步骤 S207 , 挂断电话， 可视电话释放协议栈， 会话结束。
图 4为本发明实施例调整可视电话的通话效果的方法的另一流程图。 如 图 4所示， 包括以下步骤：
步骤 S301 , 本端向对端发送全视频复用表项和全音频复用表项。
步骤 S302 , 本端接收到调整指令后， 根据与调整指令对应的全视频复用 表项或全音频复用表项对数据进行复用， 并向对端发送复用后的数据。
该步骤 S303具体可以包括：
步骤 S303a, 本端接收视频优先调整指令， 根据与该视频优先调整指令
对应的全视频复用表项对数据进行复用； 或
步骤 S303b , 本端接收音频优先调整指令， 根据与该音频优先调整指令 对应的全音频复用表项对数据进行复用； 或
步骤 S303c , 本端接收不作调整指令， 根据与该不作调整指令对应的音 视频混合复用表项对数据进行复用。
步骤 S305 , 对端根据接收到复用后的数据对应的全视频复用表项或全音 频复用表项， 对复用后的数据进行解复用。
其中， 在步骤 S303和步骤 S305之间还可以包括： 步骤 S304 , 复用后的 数据通过复用协议数据单元发送到对端， 并且在该复用协议数据单元包含的 头信息中的复用代码域中标识全视频复用表项或全音频复用表项。
上述步骤 S305具体可以是：对端按照复用代码域的索引值查询全视频复 用表项或全音频复用表项， 并根据查询到的对应的全视频复用表项或全音频 复用表项， 将复用后的数据解复用为对应的数据。
其中该步骤 S305可以包括：
步骤 S305a, 对端按照复用代码域的索引值查询， 若查询到复用后的数 据对应全视频复用表项， 则根据对应的全视频复用表项将复用后的数据解复 用为对应的数据； 或
步骤 S305b , 对端按照复用代码域的索引值查询， 若查询到复用后的数 据对应全音频复用表项， 则根据对应的全音频复用表项将复用后的数据解复 用为对应的数据。
图 5为本发明实施例可视电话终端的结构示意图。
可视电话终端 40包括复用表发送单元 401、 复用调整单元 402和解复用 单元 403。
复用表发送单元 401用于向对端发送包括全视频复用表项和全音频复用 表项的复用表。
复用调整单元 402用于收到调整指令后， 根据包括全视频复用表项和全
音频复用表项的复用表对数据进行复用， 向对端发送复用后的数据。
解复用单元 403用于根据包括全视频复用表项和全音频复用表项的复用 表对复用后的数据进行解复用。
进一步的， 复用调整单元 402还用于在复用协议数据单元的复用代码域 中索引全视频复用表项和全音频复用表项。
进一步的， 解复用单元 403还用于按照复用代码域的索引值查询全视频 复用表项和全音频复用表项。
图 6为本发明实施例可视电话终端的另一结构示意图。 该可视电话终端 包括： 复用表发送单元 610 , 其设置为向对端发送全视频复用表项和全音频 复用表项； 复用调整单元 620 , 其设置为： 接收到调整指令后， 根据与调整 指令对应的全视频复用表项或全音频复用表项对数据进行复用， 并向对端发 送复用后的数据； 以及解复用单元 630, 其设置为： 根据接收到的对端发来 的复用后的数据对应的全视频复用表项或全音频复用表项， 对接收到的对端 发来的复用后的数据进行解复用。
其中， 复用调整单元 620具体可以包括： 第一复用调整模块 621 , 其设 置为接收视频优先调整指令， 根据与该视频优先调整指令对应的全视频复用 表项对数据进行复用， 并向对端发送复用后的数据； 以及第二复用调整模块 622, 其设置为接收音频优先调整指令， 根据与该音频优先调整指令对应的全 音频复用表项对数据进行复用， 并向对端发送复用后的数据。
其中， 该可视电话终端还可以包括： 复用协议数据单元 640, 其设置为 通过其向对端发送复用后的数据， 且在该复用协议数据单元 640包含的头信 息中的复用代码域中标识全视频复用表项或全音频复用表项。
其中， 解复用单元 630可以是设置为： 按照复用代码域的索引值查询全 视频复用表项或全音频复用表项， 并根据查询到的对应的全视频复用表项或 全音频复用表项，将接收到的对端发来的复用后的数据解复用为对应的数据。
本发明在不增加无线信道带宽的情况下， 若调整为视频优先则将所有带 宽分给视频信号， 若调整为音频优先则将所有带宽分给音频信号， 默认情况
下不做控制， 将音视频信号混合发送。 用户在可视通话中可以随时切换视频 优先还是音频优先， 切换过程中不会对可视通话的效果造成影响。 视频优先 可以保证视频质量流畅清晰， 适合观看纯图像信息的场景。 音频优先可以保 证音频质量流畅清晰， 满足用户对音频通话的质量的要求； 可以有效提升用 户体验， 方便用户的灵活使用， 避免带宽不够带来的图像声音延迟、 抖动以 及模糊等。
以上仅为本发明的优选实施例， 并非因此限制本发明的专利范围， 凡是 利用本发明说明书及附图内容所作的等效结构或等效流程变换， 或直接或间 接运用在其他相关的技术领域， 均同理包括在本发明的专利保护范围内。
工业实用性 本发明在不增加无线信道带宽的情况下， 若调整为视频优先则将所有带 宽分给视频信号， 若调整为音频优先则将所有带宽分给音频信号， 默认情况 下不做控制， 将音视频信号混合发送。 用户在可视通话中可以随时切换视频 优先还是音频优先， 切换过程中不会对可视通话的效果造成影响。 视频优先 可以保证视频质量流畅清晰， 适合观看纯图像信息的场景。 音频优先可以保 证音频质量流畅清晰， 满足用户对音频通话的质量的要求。 可以有效提升用 户体验， 方便用户的灵活使用， 避免带宽不够带来的图像声音延迟、 抖动以 及模糊等。
Claims
1、 一种可视电话终端， 包括：
复用表发送单元， 其设置为向对端发送全视频复用表项和全音频复用表 项；
复用调整单元， 其设置为： 接收到调整指令后， 根据与所述调整指令对 应的所述全视频复用表项或所述全音频复用表项对数据进行复用， 并向对端 发送复用后的数据； 以及
解复用单元， 其设置为： 根据接收到的对端发来的复用后的数据对应的 全视频复用表项或全音频复用表项， 对所述接收到的对端发来的复用后的数 据进行解复用。
2、 如权利要求 1所述的可视电话终端， 其中， 所述复用调整单元包括： 第一复用调整模块， 其设置为接收视频优先调整指令， 根据与所述视频 优先调整指令对应的全视频复用表项对数据进行复用， 并向对端发送复用后 的数据； 以及
第二复用调整模块， 其设置为接收音频优先调整指令， 根据与所述音频 优先调整指令对应的全音频复用表项对数据进行复用， 并向对端发送复用后 的数据。
3、 如权利要求 1或 2所述的可视电话终端， 还包括复用协议数据单元， 其设置为通过其向对端发送复用后的数据， 且在该复用协议数据单元包含的 头信息中的复用代码域中标识所述全视频复用表项或全音频复用表项。
4、如权利要求 3所述的可视电话终端，其中，所述解复用单元是设置为： 按照所述复用代码域的索引值查询所述全视频复用表项或所述全音频复用表 项， 并根据查询到的对应的全视频复用表项或全音频复用表项， 将所述接收 到的对端发来的复用后的数据解复用为对应的数据。
5、 一种调整可视电话的通话效果的方法， 包括：
本端向对端发送全视频复用表项和全音频复用表项；
本端接收到调整指令后， 根据与所述调整指令对应的所述全视频复用表 项或所述全音频复用表项对数据进行复用， 并向对端发送复用后的数据； 对端根据接收到所述复用后的数据对应的全视频复用表项或全音频复用 表项， 对所述复用后的数据进行解复用。
6、如权利要求 5所述的调整可视电话的通话效果的方法， 其中所述本端 接收到调整指令后， 根据与所述调整指令对应的所述全视频复用表项或所述 全音频复用表项对数据进行复用的步骤包括：
所述本端接收视频优先调整指令， 根据与所述视频优先调整指令对应的 全视频复用表项对数据进行复用； 或
所述本端接收音频优先调整指令， 根据与所述音频优先调整指令对应的 全音频复用表项对数据进行复用。
7、 如权利要求 5或 6所述的调整可视电话的通话效果的方法， 还包括： 所述复用后的数据通过复用协议数据单元发送到对端， 并且在所述复用 协议数据单元包含的头信息中的复用代码域中标识所述全视频复用表项或全 音频复用表项。
8、 如权利要求 7所述的调整可视电话的通话效果的方法， 其中， 所述对 端根据接收到所述复用后的数据对应的全视频复用表项或全音频复用表项， 对所述复用后的数据进行解复用的步骤包括：
所述对端按照所述复用代码域的索引值查询所述全视频复用表项或所述 全音频复用表项，并根据查询到的对应的全视频复用表项或全音频复用表项， 将所述复用后的数据解复用为对应的数据。
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| CN200910189324A CN101778241A (zh) | 2009-12-23 | 2009-12-23 | 可视电话终端和调整可视电话的通话效果的方法 |
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| CN113395579B (zh) * | 2020-10-08 | 2022-06-28 | 武汉智能融合通信技术有限公司 | 一种音频处理方法及视频通信系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195437A (zh) * | 1995-08-16 | 1998-10-07 | 斯塔盖德数字网络有限公司 | 用于音频信号和视频信号传输的带宽动态配置 |
| CN1384958A (zh) * | 1999-10-28 | 2002-12-11 | 美国安科公司 | 广播数据用自适应带宽系统和方法 |
| CN101778241A (zh) * | 2009-12-23 | 2010-07-14 | 中兴通讯股份有限公司 | 可视电话终端和调整可视电话的通话效果的方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195437A (zh) * | 1995-08-16 | 1998-10-07 | 斯塔盖德数字网络有限公司 | 用于音频信号和视频信号传输的带宽动态配置 |
| CN1384958A (zh) * | 1999-10-28 | 2002-12-11 | 美国安科公司 | 广播数据用自适应带宽系统和方法 |
| CN101778241A (zh) * | 2009-12-23 | 2010-07-14 | 中兴通讯股份有限公司 | 可视电话终端和调整可视电话的通话效果的方法 |
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