WO2020038344A1 - Method and device for audio and video synchronization, and display apparatus - Google Patents
Method and device for audio and video synchronization, and display apparatus Download PDFInfo
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Abstract
The present invention relates to the technical field of electronics. Disclosed in an embodiment of the present invention are a method and device for audio and video synchronization and a display apparatus capable of realizing audio and video synchronization and improving user experience. The method comprises: if it is determined that there is an output of audio and video data, buffering the audio and video data; acquiring an audio-video synchronization configuration parameter; and if the audio-video synchronization configuration parameter is less than 0, performing image processing on the image data according to the audio-video synchronization configuration parameter, delaying output of the processed image data to a display apparatus, and outputting the audio data to a power amplification apparatus.
Description
本发明的实施例涉及电子技术领域，尤其涉及一种音画同步方法和装置及显示设备。Embodiments of the present invention relate to the field of electronic technologies, and in particular, to a method and device for synchronizing audio and video, and a display device.
在音视频播放技术中，播放设备(例如电视)在解码一个视频文件(包含音频数据和图像数据)后，将图像数据经过图像处理(例如图像解码、画质调节等)输出至屏幕，将音频数据进行声音处理(如解码、放大等)输出至扬声器，从而实现视频文件的播放。然而，由于图像数据较大且还要经过画质调节等图像处理过程，使得图像数据输出至屏幕比音频数据输出至扬声器较慢，因此通过采取使音频数据延迟输出至扬声器的方案可以保证音视频同步，延迟时间即为图像数据比音频数据输出慢的时长。In audio and video playback technology, after a playback device (such as a TV) decodes a video file (including audio data and image data), it outputs the image data to the screen after image processing (such as image decoding, image quality adjustment, etc.), and outputs audio The data is subjected to sound processing (such as decoding, amplification, etc.) and output to the speaker, thereby realizing the playback of the video file. However, because the image data is large and has to undergo image processing such as image quality adjustment, the output of image data to the screen is slower than the output of audio data to the speakers. Therefore, audio and video can be guaranteed by adopting a scheme that delays the output of audio data to the speakers. Synchronization, the delay time is the length of time that the image data is slower than the audio data output.
然而，随着杜比、DTS(digital theater systems，数字影院系统)等音效技术的发展，用户使用ARC(audio return channel，声音回传)外接功放达到更好的立体效果的场景越来越多。但由于此场景，电视不进行音频解码，而是将音频透传给外接的功放设备，由功放设备对音频数据进行解码。对音频数据进行音频透传加上功放设备解码以及音效处理，则可能出现声音播放比图像显示还延后的情况，致使音画不同步。However, with the development of Dolby, DTS (digital theater systems) and other sound technology, more and more scenes where users use ARC (audio return channel) external power amplifiers to achieve better stereo effects. However, due to this scenario, the TV does not perform audio decoding, but transparently transmits the audio to an external power amplifier device, and the audio data is decoded by the power amplifier device. Audio transparent transmission of audio data plus decoding of power amplifier equipment and sound effect processing may cause the sound playback to be delayed than the image display, resulting in audio and video synchronization.
发明内容Summary of the Invention
本发明的实施例提供一种音画同步方法和装置及显示设备，能够实现音画同步，提高用户体验。Embodiments of the present invention provide a method and device for synchronizing audio and video, and a display device, which can implement audio and video synchronization and improve user experience.
第一方面，提供一种音画同步方法，包括：In a first aspect, a method for synchronizing audio and video is provided, including:
当确定有音画数据输出时将所述音画数据缓存，所述音画数据包括音频数据和图像数据；Buffering the audio-visual data when it is determined that the audio-visual data is output, the audio-visual data includes audio data and image data;
获取音画同步设置参数，所述音画同步设置参数用于指示所述音频数据与所述图像数据的输出延时；Acquiring audio-visual synchronization setting parameters, where the audio-visual synchronization setting parameters are used to indicate output delays of the audio data and the image data;
当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出 至功放设备。When the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to a display device according to the audio-visual synchronization setting parameter, and the audio data is output to a power amplifier device.
在上述方案中，能够将待输出的音画数据缓存，其中音画数据包括音频数据和图像数据；然后，音画同步装置获取用于指示音频数据与图像数据的输出延时的音画同步设置参数；当确定音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。这样，图像数据提前于音频数据，可以通过延后图像数据实现音画同步，提高了用户体验。In the above solution, the audio-visual data to be output can be buffered, where the audio-visual data includes audio data and image data; then, the audio-visual synchronization device obtains an audio-visual synchronization setting for indicating the output delay of the audio data and image data Parameters; when it is determined that the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to a display device after the image-processing synchronization setting parameter, and the audio data is output to a power amplifier device. In this way, the image data is ahead of the audio data, and the audio and video synchronization can be achieved by delaying the image data, which improves the user experience.
第二方面，提供一种音画同步装置，包括：处理单元，用于当确定有音画数据输出时将所述音画数据缓存，所述音画数据包括音频数据和图像数据；所述处理单元，还用于获取音画同步设置参数，所述音画同步设置参数用于指示所述音频数据与所述图像数据的输出延时；输出单元，用于当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。According to a second aspect, an audio-visual synchronization device is provided, including: a processing unit, configured to buffer the audio-visual data when it is determined that audio-visual data is output, the audio-visual data including audio data and image data; the processing A unit, further configured to obtain audio-visual synchronization setting parameters, where the audio-visual synchronization setting parameters are used to indicate output delays of the audio data and the image data; and an output unit is used when the audio-visual synchronization setting parameters are less than At 0 o'clock, according to the audio and video synchronization setting parameters, the image data is output to a display device after image processing is postponed, and the audio data is output to a power amplifier device.
第三方面，提供一种音画同步装置，包括通信接口、处理器、存储器、总线；所述存储器用于存储计算机执行指令，所述处理器与所述存储器通过所述总线连接，当所述音画同步装置运行时，所述处理器执行所述存储器存储的计算机执行指令，以使所述音画同步装置执行上述的音画同步方法。According to a third aspect, an audio-visual synchronization device is provided, which includes a communication interface, a processor, a memory, and a bus; the memory is used to store a computer to execute instructions, and the processor and the memory are connected through the bus. When the audio-visual synchronization device is running, the processor executes computer-executing instructions stored in the memory, so that the audio-visual synchronization device executes the foregoing audio-visual synchronization method.
第四方面，提供一种计算机存储介质，包括指令，当所述指令在计算机上运行时，使得所述计算机执行第一方面所述的音画同步方法。According to a fourth aspect, a computer storage medium is provided, which includes instructions that, when the instructions are run on a computer, cause the computer to execute the audio-visual synchronization method according to the first aspect.
第五方面，提供一种显示设备，包括如第二方面、第三方面所述的音画同步装置。According to a fifth aspect, a display device is provided, including the audio-visual synchronization device according to the second aspect and the third aspect.
可以理解地，上述提供的任一种显示设备、音画同步装置或计算机存储介质均用于执行上文所提供的第一方面对应的方法，因此，其所能达到的有益效果可参考上文第一方面的方法以及下文具体实施方式中对应的方案的有益效果，此处不再赘述。Understandably, any of the display devices, audio and video synchronization devices, or computer storage media provided above is used to execute the method corresponding to the first aspect provided above. Therefore, for the beneficial effects that can be achieved, refer to the foregoing. The method of the first aspect and the beneficial effects of the corresponding solutions in the following specific implementation manners are not repeated here.
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的 附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solution of the embodiments of the present invention more clearly, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. For those of ordinary skill in the art, other embodiments may be obtained based on these drawings without paying creative labor.
图1为本发明的实施例提供的一种图像数据和音频数据的输出方式示意图；FIG. 1 is a schematic diagram of an output manner of image data and audio data provided by an embodiment of the present invention; FIG.
图2为本发明的实施例提供的一种音画同步范围的进度条示意图；FIG. 2 is a schematic diagram of a progress bar of an audio-visual synchronization range according to an embodiment of the present invention; FIG.
图3为本发明的实施例提供的一种音频数据的输出方式示意图；3 is a schematic diagram of an audio data output mode provided by an embodiment of the present invention;
图4为本发明的另一实施例提供的一种图像数据和音频数据的输出方式示意图；4 is a schematic diagram of an output manner of image data and audio data according to another embodiment of the present invention;
图5为本发明的提供的一种音画同步方法的流程示意图；5 is a schematic flowchart of a method for synchronizing audio and video provided by the present invention;
图6为本发明的另一实施例提供的一种音画同步范围的进度条示意图；FIG. 6 is a schematic diagram of a progress bar of an audio-visual synchronization range according to another embodiment of the present invention; FIG.
图7为本发明的实施例提供的一种音画同步装置的结构示意图；7 is a schematic structural diagram of an audio-visual synchronization device according to an embodiment of the present invention;
图8为本发明的另一实施例提供的一种音画同步装置的结构示意图。FIG. 8 is a schematic structural diagram of an audio-visual synchronization device according to another embodiment of the present invention.
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
目前，在音视频播放技术中，播放设备(例如电视)在解码一个视频文件(包含音频数据和图像数据)后，将图像数据经过图像处理(例如图像解码、画质调节等)输出至屏幕，将音频数据进行声音处理(如解码、放大等)输出至扬声器，从而实现视频文件的播放。然而，由于图像数据较大且还要经过画质调节等图像处理过程，使得图像数据输出至屏幕比音频数据输出至扬声器较慢，因此通过采取使音频数据延迟输出至扬声器的方案可以保证音视频同步，延迟时间即为图像数据比音频数据输出慢的时长。At present, in audio and video playback technology, a playback device (such as a television) decodes a video file (including audio data and image data), and then outputs the image data to the screen after image processing (such as image decoding, image quality adjustment, etc.). The audio data is subjected to sound processing (such as decoding, amplification, etc.) and output to a speaker, thereby realizing playback of a video file. However, because the image data is large and also undergoes image processing processes such as image quality adjustment, the output of image data to the screen is slower than the output of audio data to the speakers, so audio and video can be guaranteed by adopting a scheme that delays the output of audio data to the speakers Synchronization, the delay time is the length of time that the image data is slower than the audio data output.
如图1所示，由于需要对图像数据进行图像处理会造成延时Tv，对音频数据进行声音处理会造成延时Ta，而通常Tv＞Ta。目前的音画同步处理流程为首先通过芯片能力缓存一定的音频数据，如图2所示，通过人机交互的UI接收延时指令，例如可以在UI显示用于生成延时指令的进度 条，其中该延时指令调节的音画同步范围为如图2示出的进度条所示，为：-10—10(单位可以为秒或者毫秒)，以Taδ＝Tv-Ta时延时指令为0，此时由于图像数据经图像处理延时Tv，音频数据进行声音处理延时Ta，则相当于音频数据相对于图像数据输出至屏幕延时Taδ输出至扬声器，则音画同步；延时指令为-10时音频数据输出延迟为0，延时指令为10时音频数据输出延迟为最大TaMAX。As shown in FIG. 1, the need to perform image processing on the image data will cause a delay Tv, and the audio processing of the audio data will cause a delay Ta, and usually Tv> Ta. The current audio and video synchronization processing flow is to first buffer certain audio data through the chip capability. As shown in FIG. 2, the delay instruction is received through the human-computer interaction UI. For example, a progress bar for generating the delay instruction can be displayed on the UI. The audio and video synchronization range adjusted by the delay instruction is as shown in the progress bar shown in FIG. 2, which is: -10-10 (the unit can be seconds or milliseconds), and the delay instruction is 0 when Taδ = Tv-Ta At this time, since the image data is delayed by the image processing delay Tv and the audio data is processed by the sound processing delay Ta, it is equivalent to the audio data being output to the screen delay Taδ relative to the image data output to the speaker, then the audio and video are synchronized; the delay instruction is At -10 hours, the audio data output delay is 0. When the delay instruction is 10, the audio data output delay is the maximum TaMAX.
然而，随着杜比、DTS等音效技术的发展，用户使用ARC外接功放达到更好的立体效果的场景越来越多。但由于此场景，电视不进行音频解码，而是将音频透传给外接的功放设备，由功放设备对音频数据进行解码，如图3所示。而，对音频数据进行音频透传加上功放设备解码以及音效处理，则可能出现声音播放比图像显示还延后的情况，致使音画不同步。However, with the development of Dolby, DTS and other sound technology, more and more scenes where users use ARC external amplifiers to achieve better stereo effect. However, due to this scenario, the TV does not perform audio decoding, but transparently transmits the audio to an external power amplifier device, and the audio data is decoded by the power amplifier device, as shown in FIG. 3. However, audio transparent transmission of audio data plus decoding of the power amplifier equipment and sound effect processing may cause the sound playback to be delayed compared to the image display, resulting in asynchronous audio and video.
如图4所示，由于需要对图像数据进行图像处理会造成延时Tv，对音频数据进行透传造成延时Ta，功放设备对音频数据进行声音处理进一步造成延时Ta’，而当Ta’＞Taδ时，说明声音播放比图像显示还延后，则通过音频数据延时并不能解决音画不同步的问题。As shown in Figure 4, the need to perform image processing on the image data will cause a delay Tv, and the transparent transmission of audio data will cause a delay Ta. The audio processing of the audio data by the amplifier device will further cause a delay Ta ', and when Ta' If Taδ, it means that the sound playback is delayed compared to the image display. The delay of audio data cannot solve the problem of asynchronous audio and video.
为解决上述问题，提供一种音画同步方法，参照图5所示，包括如下步骤：In order to solve the above problem, a method for synchronizing audio and video is provided. Referring to FIG. 5, the method includes the following steps:
101、确定是否有音视频数据输出。101. Determine whether there is audio / video data output.
102、当确定有音画数据输出时将音画数据缓存，获取音画同步设置参数M。102. Buffer the audio-visual data when it is determined that the audio-visual data is output, and obtain the audio-visual synchronization setting parameter M.
其中，音画数据包括音频数据和图像数据，音画同步设置参数M用于指示音频数据与图像数据的输出延时。The audio-visual data includes audio data and image data, and the audio-visual synchronization setting parameter M is used to indicate output delays of audio data and image data.
其中，可以通过用户界面UI接收用户输入的操作指令，获取操作指令携带的音画同步设置参数M。参照图6所示，可以在用户界面显示不同的音画同步设置参数对应的调节进度条，例如，-N—10，用户可以在用户界面调节进度条的位置向电视输入音画同步设置参数M，其中Taδ＝Tv-Ta时音画同步设置参数M＝0，此时图像数据经图像处理延时Tv，音频数据透传至功放设备延时Ta，相当于音频数据相对于图像数据延时Taδ输出至功放设备，音画同步设置参数M小于0的部分对应图像数据的延时，音画同步设置参数M大于0的部分对应音频数据的延时。Wherein, an operation instruction input by the user can be received through the user interface UI, and the audio-visual synchronization setting parameter M carried by the operation instruction can be obtained. As shown in FIG. 6, an adjustment progress bar corresponding to different audio and video synchronization setting parameters can be displayed on the user interface, for example, -N-10, and the user can input the audio and video synchronization setting parameter M to the TV at the position of the user interface adjustment progress bar. , Where Taδ = Tv-Ta when the audio and video synchronization setting parameter M = 0, at this time the image data is delayed by Tv through the image processing, and the audio data is transparently transmitted to the power amplifier device delay Ta, which is equivalent to the audio data delay Taδ Output to the power amplifier device. The part where the audio-visual synchronization setting parameter M is less than 0 corresponds to the delay of the image data, and the part where the audio-visual synchronization setting parameter M is greater than 0 corresponds to the delay of the audio data.
103、当音画同步设置参数小于0时，根据音画同步设置参数将图像数据经过图像处理后延后输出至显示设备，并将音频数据输出至功放设备。103. When the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to the display device according to the audio-visual synchronization setting parameter, and the audio data is output to the power amplifier device.
具体的，当确定音画同步设置参数小于0时，确定通过延后图像数据实现音画同步。而由于不同视频文件对应的图像数据的帧率不一定相同同，因此在计算图像数据延后输出的帧数时，需要考虑图像数据的帧率。Specifically, when it is determined that the audio-visual synchronization setting parameter is less than 0, it is determined that audio-visual synchronization is achieved by delaying the image data. Because the frame rate of the image data corresponding to different video files is not necessarily the same, the frame rate of the image data needs to be taken into account when calculating the number of frames of the image data output after the delay.
若图像数据的帧率与默认的播放帧率相同，则根据音画同步设置参数确定延后的帧数，根据延后的帧数将经过图像处理后的所述图像数据延后输出至显示设备；例如，当前图像数据的帧率和当时用户设置的默认的播放帧率相同，直接按对应的数据M，对应延后相应帧数图像。例如，M单位为ms时，帧率为F，则将图像数据延后M/(1000/F)帧输出。If the frame rate of the image data is the same as the default playback frame rate, the number of deferred frames is determined according to the audio and video synchronization setting parameters, and the image data after image processing is output to the display device according to the deferred frames For example, the frame rate of the current image data is the same as the default playback frame rate set by the user at that time, directly pressing the corresponding data M, and correspondingly delaying the corresponding frame number of images. For example, when the M unit is ms and the frame rate is F, the image data is delayed by M / (1000 / F) frames for output.
当图像数据的帧率与默认的播放帧率不相同时，根据图像数据的帧率、默认的播放帧率以及音画同步设置参数计算延后的帧数，根据延后的帧数将经过图像处理后的所述图像数据延后输出。其中，延后的帧数满足如下条件：N*(1000/F)＞Ta’，其中，N为延后的帧数，F为图像数据的帧率，Ta’为功放设备处理音频数据造成的延时。When the frame rate of the image data is different from the default playback frame rate, the number of delayed frames is calculated based on the frame rate of the image data, the default playback frame rate, and the audio and video synchronization setting parameters. The processed image data is output after a delay. Among them, the number of delayed frames satisfies the following conditions: N * (1000 / F)> Ta ', where N is the number of delayed frames, F is the frame rate of the image data, and Ta' is caused by the processing of audio data by the power amplifier device. Delay.
当前图像数据的帧率F与默认的播放帧率F'不相同时，计算出当前图像数据的帧率对应的音画同步设置参数M'，对图像数据按照M'延后对应的帧数。用户使用的功放设备固定时，功放设备对音频数据处理时造成的延时也就相应是固定的。所以在音画同步时，要保证延时相同，由于图像数据的帧率不同，每帧数据耗时不同，耗时情况为1000ms/F(F为当前帧率)。如果是50帧的数据，每帧耗时就是1000/50＝20ms，同理24帧的数据，每帧耗时就是1000/24≈42ms。所以如果音画同步设置参数M<0，在缓存图像数据时也同时记录图像数据的帧率，如果帧率发生改变，需要通过M'＝F'/F*M(计算数据需要四舍五入取整)来确认具体图像延后帧数，以此来保证不同帧率的数据，对应的延时最趋近于同步。When the frame rate F of the current image data is different from the default playback frame rate F ', the audio-visual synchronization setting parameter M' corresponding to the frame rate of the current image data is calculated, and the corresponding frame number of the image data is delayed according to M '. When the power amplifier device used by the user is fixed, the delay caused by the power amplifier device processing the audio data is correspondingly fixed. Therefore, when synchronizing audio and video, it is necessary to ensure that the delay is the same. Because the frame rate of the image data is different, each frame of data takes different time, and the time consumption is 1000ms / F (F is the current frame rate). If it is 50 frames of data, each frame takes 1000/50 = 20ms. Similarly, for 24 frames of data, each frame takes 1000 / 24≈42ms. Therefore, if the audio and video synchronization setting parameter M <0, the frame rate of the image data is also recorded when the image data is cached. If the frame rate changes, you need to pass M '= F' / F * M (the calculated data needs to be rounded up and down) To confirm the number of delayed frames for a specific image, to ensure data at different frame rates, the corresponding delay is most likely to be synchronized.
在上述方案中，能够将待输出的音画数据缓存，其中音画数据包括音频数据和图像数据；然后，获取用于指示音频数据与图像数据的输出延时的音画同步设置参数；当确定音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。这样，图像数据提前于音频数据，可以通 过延后图像数据实现音画同步，提高了用户体验。In the above solution, the audio and video data to be output can be buffered, where the audio and video data includes audio data and image data; then, the audio and video synchronization setting parameters used to indicate the output delay of the audio data and image data are acquired; when it is determined When the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to a display device according to the audio-visual synchronization setting parameter, and the audio data is output to a power amplifier device. In this way, the image data is ahead of the audio data, and the audio and video synchronization can be achieved by delaying the image data, which improves the user experience.
此外，还包括如下步骤：In addition, it includes the following steps:
104、当音画同步设置参数大于0时，根据音画同步设置参数将音频数据延后输出至功放设备，并将图像数据经过图像处理后输出至显示设备。104. When the audio-visual synchronization setting parameter is greater than 0, the audio data is delayed and output to the power amplifier device according to the audio-visual synchronization setting parameter, and the image data is output to the display device after image processing.
例如，音画同步设置参数大于0，确定通过延后音频数据实现音画同步，具体若M表示需要将音频数据延后Mms，则根据UI获取的操作指令中携带的将音频数据延后Mms输出至功放设备，并将经过图像处理后的图像数据输出至显示设备。For example, if the audio and video synchronization setting parameter is greater than 0, it is determined that audio and video synchronization is achieved by delaying the audio data. Specifically, if M indicates that the audio data needs to be delayed by Mms, the audio data is delayed by Mms according to the operation instruction carried in the UI To the power amplifier device, and output the image data after image processing to the display device.
105、当音画同步设置参数等于0时，根据音画同步设置参数将图像数据经过图像处理后输出至显示设备，并将音频数据输出至功放设备。105. When the audio-visual synchronization setting parameter is equal to 0, output the image data to the display device after image processing according to the audio-visual synchronization setting parameter, and output the audio data to the power amplifier device.
此时，并不对图像数据和或音频数据做额外的延后处理，即认为对图像数据进行图像处理会造成延时Tv，对音频数据进行透传造成延时Ta，以及功放设备对音频数据进行声音处理进一步造成延时Ta’，并不会对音画同步造成影响。At this time, no additional delay processing is performed on the image data and / or audio data, that is, it is considered that the image processing of the image data will cause a delay Tv, the transparent transmission of the audio data will cause a delay Ta, and the power amplifier equipment will perform the audio data The sound processing further causes the delay Ta 'without affecting the audio and video synchronization.
这样，当音画同步设置参数大于0时，根据音画同步设置参数将音频数据延后输出至功放设备，并将所述图像数据经过图像处理后输出至显示设备；当音画同步设置参数等于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后输出至显示设备，并将音频数据输出至功放设备。因此，无论音频数据提前于图像数据，或者图像数据提前于音频数据，通过上述方案均能够实现音画同步，提高了用户体验。In this way, when the audio-visual synchronization setting parameter is greater than 0, the audio data is delayed and output to the power amplifier device according to the audio-visual synchronization setting parameter, and the image data is output to the display device after image processing; when the audio-visual synchronization setting parameter is equal to At 0 o'clock, the image data is output to a display device after image processing according to the audio and video synchronization setting parameters, and the audio data is output to a power amplifier device. Therefore, whether the audio data is ahead of the image data or the image data is ahead of the audio data, the above-mentioned solution can achieve audio and video synchronization and improve the user experience.
参照图7所示，提供一种音画同步装置，包括：As shown in FIG. 7, an audio-visual synchronization device is provided, including:
处理单元71，用于当确定有音画数据输出时将所述音画数据缓存其中所述音画数据包括音频数据和图像数据。The processing unit 71 is configured to buffer the audio-visual data when it is determined that the audio-visual data is output, where the audio-visual data includes audio data and image data.
处理单元71，还用于获取音画同步设置参数，音画同步设置参数用于指示所述音频数据与所述图像数据的输出延时；The processing unit 71 is further configured to obtain audio-visual synchronization setting parameters, where the audio-visual synchronization setting parameters are used to indicate output delays of the audio data and the image data;
输出单元72，用于当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。An output unit 72, configured to output the image data to a display device after image processing is postponed, and output the audio data to the display device according to the audio and video synchronization setting parameter when the audio and video synchronization setting parameter is less than 0; Amplifier equipment.
在一种示例性的方案中，输出单元72，用于当所述音画同步设置参数大于0时，根据所述音画同步设置参数将所述音频数据延后输出至功放设 备，并将所述图像数据经过图像处理后输出至显示设备。所述输出单元72，用于当所述音画同步设置参数等于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后输出至显示设备，并将所述音频数据输出至功放设备。In an exemplary solution, an output unit 72 is configured to delay output the audio data to a power amplifier device according to the audio-visual synchronization setting parameter when the audio-visual synchronization setting parameter is greater than 0, and output the audio data to the power amplifier device. The image data is output to a display device after image processing. The output unit 72 is configured to output the image data to a display device after image processing according to the audio-visual synchronization setting parameter when the audio-visual synchronization setting parameter is equal to 0, and output the audio data to Amplifier equipment.
在一种示例性的方案中，所述输出单元72，具体用于当所述音画同步设置参数小于0时，若确定所述图像数据的帧率与默认的播放帧率相同，则根据所述音画同步设置参数确定延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出至显示设备；当所述图像数据的帧率与默认的播放帧率不相同时，根据所述图像数据的帧率、所述默认的播放帧率以及所述音画同步设置参数计算延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出。In an exemplary solution, the output unit 72 is specifically configured to, when the audio and video synchronization setting parameter is less than 0, if it is determined that the frame rate of the image data is the same as the default playback frame rate, The audio and video synchronization setting parameter determines the number of frames to be delayed, and the image data after image processing is output to the display device according to the number of frames that are delayed; when the frame rate of the image data and the default playback When the frame rates are not the same, the number of deferred frames is calculated according to the frame rate of the image data, the default playback frame rate, and the audio and video synchronization setting parameters. The image data is output after being delayed.
在一种示例性的方案中，所述延后的帧数满足如下条件：In an exemplary solution, the number of delayed frames satisfies the following conditions:
N*(1000/F)＞Ta’，其中，N为所述延后的帧数，所述F为所述图像数据的帧率，Ta’为所述功放设备处理所述音频数据造成的延时。N * (1000 / F)> Ta ', where N is the number of delayed frames, F is the frame rate of the image data, and Ta' is the delay caused by the power amplifier device processing the audio data Time.
在一种示例性的方案中，所述处理单元71，具体用于通过用户界面接收用户输入的操作指令，获取所述操作指令携带的音画同步设置参数。In an exemplary solution, the processing unit 71 is specifically configured to receive an operation instruction input by a user through a user interface, and obtain audio-visual synchronization setting parameters carried by the operation instruction.
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，其作用在此不再赘述。Wherein, all relevant content of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and its function is not repeated here.
在采用集成的模块的情况下，音画同步装置包括：存储单元、处理单元以及接口单元。处理单元用于对音画同步装置的动作进行控制管理，例如，处理单元用于支持音画同步装置执行图5中的过程101-105。接口单元用于支持音画同步装置与其他装置的交互，例如与显示设备或者功放设备的交互。存储单元，用于存储音画同步装置的程序代码和数据。In the case of using integrated modules, the audio-visual synchronization device includes: a storage unit, a processing unit, and an interface unit. The processing unit is configured to control and manage the actions of the audio-visual synchronization device. For example, the processing unit is configured to support the audio-visual synchronization device to perform processes 101-105 in FIG. 5. The interface unit is used to support interaction between the audio and video synchronization device and other devices, such as interaction with a display device or an amplifier device. The storage unit is configured to store program code and data of the audio-visual synchronization device.
其中，以处理单元为处理器，存储单元为存储器，接口单元为通信接口为例。其中，音画同步装置参照图8中所示，包括通信接口801、处理器802、存储器803和总线804，通信接口801、处理器802通过总线804与存储器803相连。The processing unit is a processor, the storage unit is a memory, and the interface unit is a communication interface. The audio and video synchronization device shown in FIG. 8 includes a communication interface 801, a processor 802, a memory 803, and a bus 804. The communication interface 801 and the processor 802 are connected to the memory 803 through the bus 804.
处理器802可以是一个通用中央处理器(Central Processing Unit，CPU)，微处理器，特定应用集成电路(Application-Specific Integrated Circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。The processor 802 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more of the programs used to control the execution of the program of the solution of this application. integrated circuit.
存储器803可以是只读存储器(Read-Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(Random Access Memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器相连接。存储器也可以和处理器集成在一起。The memory 803 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (Random Access Memory, RAM), or other types that can store information and instructions The dynamic storage device can also be Electrically Erasable Programmable Read-only Memory (EEPROM), Compact Disc (Read-Only Memory, CD-ROM) or other optical disk storage, optical disk storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory may exist independently and be connected to the processor through a bus. The memory can also be integrated with the processor.
其中，存储器803用于存储执行本申请方案的应用程序代码，并由处理器802来控制执行。通讯接口801用于与其他装置进行信息交互，例如与显示设备或者功放设备进行信息交互。处理器802用于执行存储器803中存储的应用程序代码，从而实现本申请实施例中所述的方法。The memory 803 is configured to store application program code that executes the solution of the present application, and is controlled and executed by the processor 802. The communication interface 801 is used to perform information interaction with other devices, such as information interaction with a display device or a power amplifier device. The processor 802 is configured to execute application program code stored in the memory 803, so as to implement the method described in the embodiment of the present application.
本发明的实施例提供一种显示设备，包括上述的音画同步装置。此外，还提供一种计算存储媒体(或介质)，包括在被执行时进行上述实施例中的方法的操作的指令。An embodiment of the present invention provides a display device including the audio-visual synchronization device described above. In addition, a computing storage medium (or medium) is also provided, including instructions that, when executed, perform the operations of the methods in the above embodiments.
另外，还提供一种计算机程序产品，包括上述计算存储媒体(或介质)。In addition, there is also provided a computer program product including the above-mentioned computing storage medium (or medium).
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not deal with embodiments of the present invention The implementation process constitutes any limitation.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(英文全称:read-only memory，英文简称：ROM)、随机存取存储器(英文全称：random access memory，英文简称：RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (full English name: read-only memory, English abbreviation: ROM), a random access memory (full English name: random access memory, English abbreviation: RAM), magnetic Various media such as discs or optical discs that can store program codes.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention. It should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
- 一种音画同步方法，其特征在于，包括：A method for synchronizing audio and video, comprising:当确定有音画数据输出时将所述音画数据缓存，所述音画数据包括音频数据和图像数据；Buffering the audio-visual data when it is determined that the audio-visual data is output, the audio-visual data includes audio data and image data;获取音画同步设置参数，所述音画同步设置参数用于指示所述音频数据与所述图像数据的输出延时；Acquiring audio-visual synchronization setting parameters, where the audio-visual synchronization setting parameters are used to indicate output delays of the audio data and the image data;当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。When the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to a display device according to the audio-visual synchronization setting parameter, and the audio data is output to a power amplifier device.
- 根据权利要求1所述的音画同步方法，其特征在于，还包括：The audio-visual synchronization method according to claim 1, further comprising:当所述音画同步设置参数大于0时，根据所述音画同步设置参数将所述音频数据延后输出至功放设备，并将所述图像数据经过图像处理后输出至显示设备；When the audio-visual synchronization setting parameter is greater than 0, delay outputting the audio data to a power amplifier device according to the audio-visual synchronization setting parameter, and output the image data to a display device after image processing;当所述音画同步设置参数等于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后输出至显示设备，并将所述音频数据输出至功放设备。When the audio-visual synchronization setting parameter is equal to 0, the image data is output to a display device after image processing according to the audio-visual synchronization setting parameter, and the audio data is output to a power amplifier device.
- 根据权利要求1所述的音画同步方法，其特征在于，当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，包括：The audio-visual synchronization method according to claim 1, wherein, when the audio-visual synchronization setting parameter is less than 0, the image data is post-processed and output to the display according to the audio-visual synchronization setting parameter. Equipment including:当所述音画同步设置参数小于0时，若确定所述图像数据的帧率与默认的播放帧率相同，则根据所述音画同步设置参数确定延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出至显示设备；When the audio-visual synchronization setting parameter is less than 0, if it is determined that the frame rate of the image data is the same as the default playback frame rate, then the number of delayed frames is determined according to the audio-visual synchronization setting parameter, and according to the delay Delaying the frame number of the image data and outputting the image data to a display device;当所述图像数据的帧率与默认的播放帧率不相同时，根据所述图像数据的帧率、所述默认的播放帧率以及所述音画同步设置参数计算延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出。When the frame rate of the image data is different from the default playback frame rate, calculate the number of delayed frames according to the frame rate of the image data, the default playback frame rate, and the audio and video synchronization setting parameters. The delayed frame number delays outputting the image data after image processing.
- 根据权利要求3所述的音画同步方法，其特征在于，所述延后的帧数满足如下条件：The method according to claim 3, wherein the number of delayed frames satisfies the following conditions:N*(1000/F)＞Ta’，其中，N为所述延后的帧数，所述F为所述图像数据的帧率，Ta’为所述功放设备处理所述音频数据造成的延时。N * (1000 / F)> Ta ', where N is the number of delayed frames, F is the frame rate of the image data, and Ta' is the delay caused by the power amplifier device processing the audio data Time.
- 根据权利要求1所述的音画同步方法，其特征在于，所述获取音 画同步设置参数，包括：通过用户界面接收用户输入的操作指令，获取所述操作指令携带的音画同步设置参数。The method for synchronizing audio and video according to claim 1, wherein the acquiring audio and video synchronization setting parameters comprises: receiving an operation instruction input by a user through a user interface, and acquiring the audio and video synchronization setting parameters carried by the operation instruction.
- 一种音画同步装置，其特征在于，包括：An audio-visual synchronization device, comprising:处理单元，用于当确定有音画数据输出时将所述音画数据缓存，所述音画数据包括音频数据和图像数据；A processing unit, configured to buffer the audio-visual data when it is determined that the audio-visual data is output, where the audio-visual data includes audio data and image data;所述处理单元，还用于获取音画同步设置参数，所述音画同步设置参数用于指示所述音频数据与所述图像数据的输出延时；The processing unit is further configured to obtain audio-visual synchronization setting parameters, where the audio-visual synchronization setting parameters are used to indicate output delays of the audio data and the image data;输出单元，用于当所述音画同步设置参数小于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后延后输出至显示设备，并将所述音频数据输出至功放设备。An output unit, configured to output the image data to a display device after image processing is postponed, and output the audio data to a power amplifier when the audio and video synchronization setting parameter is less than 0; device.
- 根据权利要求6所述的音画同步装置，其特征在于，The audio-visual synchronization device according to claim 6, wherein:所述输出单元，还用于当所述音画同步设置参数大于0时，根据所述音画同步设置参数将所述音频数据延后输出至功放设备，并将所述图像数据经过图像处理后输出至显示设备；The output unit is further configured to: when the audio-visual synchronization setting parameter is greater than 0, delay outputting the audio data to a power amplifier device according to the audio-visual synchronization setting parameter, and perform image processing on the image data Output to display device;所述输出单元，还用于当所述音画同步设置参数等于0时，根据所述音画同步设置参数将所述图像数据经过图像处理后输出至显示设备，并将所述音频数据输出至功放设备。The output unit is further configured to: when the audio-visual synchronization setting parameter is equal to 0, output the image data to a display device after image processing according to the audio-visual synchronization setting parameter, and output the audio data to Amplifier equipment.
- 根据权利要求6所述的音画同步装置，其特征在于，The audio-visual synchronization device according to claim 6, wherein:所述输出单元，具体用于当所述音画同步设置参数小于0时，若确定所述图像数据的帧率与默认的播放帧率相同，则根据所述音画同步设置参数确定延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出至显示设备；当所述图像数据的帧率与默认的播放帧率不相同时，根据所述图像数据的帧率、所述默认的播放帧率以及所述音画同步设置参数计算延后的帧数，根据所述延后的帧数将经过图像处理后的所述图像数据延后输出。The output unit is specifically configured to: when the audio and video synchronization setting parameter is less than 0, if it is determined that the frame rate of the image data is the same as the default playback frame rate, determine the delay according to the audio and video synchronization setting parameter. Frame number, delaying outputting the image data after image processing to a display device according to the delayed frame number; when the frame rate of the image data is different from a default playback frame rate, The frame rate of the data, the default playback frame rate, and the audio and video synchronization setting parameters are used to calculate the number of deferred frames, and the image data after image processing is deferred and output according to the deferred frames.
- 根据权利要求8所述的音画同步装置，其特征在于，所述延后的帧数满足如下条件：The audio-visual synchronization device according to claim 8, wherein the number of delayed frames satisfies the following conditions:N*(1000/F)＞Ta’，其中，N为所述延后的帧数，所述F为所述图像数据的帧率，Ta’为所述功放设备处理所述音频数据造成的延时。N * (1000 / F)> Ta ', where N is the number of delayed frames, F is the frame rate of the image data, and Ta' is the delay caused by the power amplifier device processing the audio data Time.
- 一种显示设备，其特征在于，包括如权利要求6-9任一项所述的音画同步装置。A display device, comprising the audio-visual synchronization device according to any one of claims 6-9.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130162757A1 (en) * | 2011-12-27 | 2013-06-27 | Yohsuke KAWAMURA | Image processing apparatus and image processing method |
| CN104079958A (en) * | 2014-04-25 | 2014-10-01 | 中国传媒大学 | Video and multichannel audio synchronous broadcasting method |
| CN104902317A (en) * | 2015-05-27 | 2015-09-09 | 青岛海信电器股份有限公司 | Audio video synchronization method and device |
| CN105376628A (en) * | 2014-08-27 | 2016-03-02 | 深圳Tcl新技术有限公司 | Method and device for synchronizing audio-video signals |
| CN107509100A (en) * | 2017-09-15 | 2017-12-22 | 深圳国微技术有限公司 | Audio and video synchronization method, system, computer installation and computer-readable recording medium |
| CN107801080A (en) * | 2017-11-10 | 2018-03-13 | 普联技术有限公司 | A kind of audio and video synchronization method, device and equipment |
| CN109167890A (en) * | 2018-08-22 | 2019-01-08 | 青岛海信电器股份有限公司 | A kind of sound draws synchronous method and device and display equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0976247A1 (en) * | 1997-04-14 | 2000-02-02 | Thomson Consumer Electronics, Inc. | System for forming and processing an mpeg compatible datastream incorporating internet information |
| CN101005589A (en) * | 2006-01-16 | 2007-07-25 | 深圳Tcl新技术有限公司 | Control method for keeping synchronization of audio-video frequencies |
| CN101282438A (en) * | 2007-12-29 | 2008-10-08 | 青岛海信电器股份有限公司 | Method for synchronization of image and sound as well as video apparatus using the same |
| CN101640057A (en) * | 2009-05-31 | 2010-02-03 | 北京中星微电子有限公司 | Audio and video matching method and device therefor |
| CN104618786B (en) * | 2014-12-22 | 2018-01-05 | 深圳市腾讯计算机系统有限公司 | Audio and video synchronization method and device |
| CN105847862A (en) * | 2016-03-30 | 2016-08-10 | 乐视控股（北京）有限公司 | Cloud program directing station and cutoff continued broadcasting method thereof |
| CN106603543B (en) * | 2016-12-22 | 2019-08-09 | 努比亚技术有限公司 | Correct the synchronous method and device of stream medium audio and video |
-
2018
- 2018-08-22 CN CN201810962929.0A patent/CN109167890B/en active Active
-
2019
- 2019-08-20 WO PCT/CN2019/101475 patent/WO2020038344A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130162757A1 (en) * | 2011-12-27 | 2013-06-27 | Yohsuke KAWAMURA | Image processing apparatus and image processing method |
| CN104079958A (en) * | 2014-04-25 | 2014-10-01 | 中国传媒大学 | Video and multichannel audio synchronous broadcasting method |
| CN105376628A (en) * | 2014-08-27 | 2016-03-02 | 深圳Tcl新技术有限公司 | Method and device for synchronizing audio-video signals |
| CN104902317A (en) * | 2015-05-27 | 2015-09-09 | 青岛海信电器股份有限公司 | Audio video synchronization method and device |
| CN107509100A (en) * | 2017-09-15 | 2017-12-22 | 深圳国微技术有限公司 | Audio and video synchronization method, system, computer installation and computer-readable recording medium |
| CN107801080A (en) * | 2017-11-10 | 2018-03-13 | 普联技术有限公司 | A kind of audio and video synchronization method, device and equipment |
| CN109167890A (en) * | 2018-08-22 | 2019-01-08 | 青岛海信电器股份有限公司 | A kind of sound draws synchronous method and device and display equipment |
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