WO2017101406A1 - 基于Android的音频内容处理方法及设备 - Google Patents

基于Android的音频内容处理方法及设备 Download PDF

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WO2017101406A1
WO2017101406A1 PCT/CN2016/089519 CN2016089519W WO2017101406A1 WO 2017101406 A1 WO2017101406 A1 WO 2017101406A1 CN 2016089519 W CN2016089519 W CN 2016089519W WO 2017101406 A1 WO2017101406 A1 WO 2017101406A1
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audio content
processing unit
dolby
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data
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江明玄
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Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding

Definitions

  • the present patent application relates to the field of audio digital processing, and in particular, to an audio content processing method and device based on Android.
  • Dolby Surround is a sound that encodes the rear effect channel into a stereo channel.
  • Dolby Surround Replay requires a decoder to separate the surround sound signal from the encoded sound. Because Dolby is the authority on matrix surround sound processing, Dolby Pro Logic technology is the foundation for multi-channel home theaters, as well as making surround soundtracks for thousands of commercial videotapes, laser discs, DVDs and TV shows. Reference decoding technology.
  • Dolby Digital has replaced Dolby Surround to become a consumer through DVD-Video, digital TV and games. Provides recommended decoding techniques for multi-channel audio.
  • each Dolby Digital decoder is compatible with Dolby Pro Logic stereo signals through its analog output port.
  • Dolby Pro Logic is a special 4-2-4 encoding technology invented by Dolby Laboratories.
  • the technology classifies the sound field information into four pieces of information: left, center, right, and surround, and then synthesizes the two channels by a specific coding technique. When the broadcast is performed, the two channels are restored to four pieces of information for playback by the decoder.
  • the carrier of Dolby Pro Logic is two-channel (stereo), it is well compatible with conventional stereo devices (for example, mobile terminals such as mobile phones), and can be copied by ordinary stereo devices, copied program sources. The same surround sound effect as the master can still be obtained after processing by the Dolby Pro Logic decoder.
  • DTS Digital Theatre System
  • Dolby Digital stores sound data between the perforations of motion picture film. Because of space constraints, a large number of compression modes must be used, so that part of the sound quality has to be sacrificed.
  • DTS solved this problem in a simple way by storing the sound data in another CD-ROM to synchronize it with the image data. In this way, not only the space is increased, but also the data traffic can be relatively large, and the CD storing the sound effect data can be replaced to play different language versions.
  • Hi-Fi High-Fidelity
  • PCM Pulse Code Modulation
  • HAL Hardware Abstraction Layer
  • An object of some embodiments of the present invention is to provide an Android-based audio content processing method and apparatus, which can effectively identify a PCM data source, thereby performing targeted processing on PCM data to reproduce sound.
  • some embodiments of the present invention provide an Android-based audio content processing method, the method comprising: a frame layer receiving the audio content; the framework layer identifying a type of the audio content, and identifying The audio content adds an identification associated with the type; and the hardware abstraction layer receives audio content data and identification from the framework layer and transmits the audio content data to a processing unit corresponding to the identification.
  • the audio content data is pulse code modulated data
  • the method further The method includes: the frame layer pulsing the audio content to obtain audio content data; and the framework layer transmitting the audio content data to the hardware abstraction layer.
  • the method further comprises: obtaining the audio content from a music/video player APP; and transmitting the audio content to the via a Media Player/AudioTrack application interface Frame layer.
  • the type of audio content comprises at least one of: Dolby Surround, Dolby Digital, Dolby Pro Logic Surround, Digital Cinema System, and High Fidelity.
  • the processing unit includes at least one of: a Dolby processing unit, a digital cinema system processing unit, and a high fidelity processing unit.
  • Some embodiments of the present invention also provide an Android-based audio content processing system, the system comprising: a framework layer configured to receive the audio content; the framework layer further configured to identify the type of the audio content And adding an identifier associated with the type to the identified audio content; and a hardware abstraction layer configured to receive audio content data and identification from the framework layer and to communicate audio content data to the identifier Processing unit.
  • a framework layer configured to receive the audio content
  • the framework layer further configured to identify the type of the audio content And adding an identifier associated with the type to the identified audio content
  • a hardware abstraction layer configured to receive audio content data and identification from the framework layer and to communicate audio content data to the identifier Processing unit.
  • the audio content data is pulse code modulated data
  • the frame layer is further configured to pulse code modulate the audio content to obtain audio content data; and transmit the audio content data To the hardware abstraction layer.
  • the system further includes: a music/video player APP configured to provide the audio content; and the framework layer, further configured to pass a media player (Mediaplayer)/audio track (AudioTrack)
  • the application interface receives the audio content.
  • the type of audio content comprises at least one of: Dolby Surround, Dolby Digital, Dolby Pro Logic Surround, Digital Cinema System, and High Fidelity.
  • the processing unit includes at least one of: a Dolby processing unit, a digital cinema system processing unit, and a high fidelity processing unit.
  • the type of audio content is identified by using the Android framework layer.
  • the type is marked, and then the pulse code modulated data corresponding to the audio content is transmitted to the processing unit corresponding to the type of the audio content according to the mark in the hardware abstraction layer, so that different types of audio content are correctly processed.
  • the coexistence of Dolby, DTS and HiFi in the same system is realized.
  • FIG. 1 is a flowchart of an Android-based audio content processing method according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an Android-based audio content processing system according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an Android-based audio content processing system according to a preferred embodiment of the present invention.
  • an Android-based audio content processing method provided by an embodiment of the present invention may include: S101, a framework layer receives the audio content; S102, the framework layer identifies Type of the audio content, and adding an identifier associated with the type to the identified audio content; and S103, the hardware abstraction layer receives the audio content data and the identification from the framework layer, and transmits the audio content data to the UI
  • the processing unit corresponding to the identifier is described. Wherein the processing unit includes an algorithm for processing audio content data.
  • the type of the audio content is identified by the Android framework layer, and the type is marked, and then the pulse code modulated data corresponding to the audio content is transmitted to the processing corresponding to the type of the audio content according to the mark in the hardware abstraction layer.
  • Unit which implements correct handling of different types of audio content.
  • the type of audio content may be identified or tagged by adding a type identification such as a source type to the audio content in the framework layer.
  • the source type identifier may, for example, be bound to the audio content or data to which it corresponds, thereby accompanying the various processes of audio content processing.
  • the source type identification may be sent to the hardware abstraction layer (eg, Audio HAL) along with the audio content data.
  • the Android system generally performs pulse code modulation on the audio content at the framework layer to generate pulse code modulated data for use by the hardware abstraction layer as audio content data.
  • the method further comprises: the frame layer pulsing the audio content to obtain audio content data; and the framework layer transmitting the audio content data to the hardware abstraction layer.
  • the audio content may be from an Android APP.
  • the method provided by the embodiment of the present invention may further include: acquiring the audio content from a music/video player APP; and using a Media Player/AudioTrack application interface. The audio content is delivered to the frame layer.
  • the type of audio content may include at least one of: Dolby Surround, Dolby Digital, Dolby Pro Logic Surround, Digital Cinema System, and High Fidelity.
  • the type of audio content can be selected according to actual needs to meet more specific usage requirements.
  • the processing unit may include at least one of the following: a Dolby processing unit, a digital cinema system processing unit, and a high fidelity processing unit.
  • the processing unit herein may be a digital signal processing (DSP) unit, and the audio content data may be processed according to the type corresponding to the audio content data received by the corresponding algorithm.
  • the processing unit may be multiple, each processing unit being responsible for processing one type of audio content.
  • the audio abstraction layer may be responsible for feeding the audio content data to the corresponding processing unit according to the type.
  • an embodiment of the present invention further provides an Android-based audio content processing system, which may include: a framework layer 201 configured to receive the audio content; the framework layer 201 is also configured Identifying the type of the audio content and adding an identification associated with the type to the identified audio content; and a hardware abstraction layer 202 configured to receive audio content data and identification from the framework layer 201, and to audio The content data is transferred to the processing unit 203 corresponding to the identification.
  • an Android-based audio content processing system may include: a framework layer 201 configured to receive the audio content; the framework layer 201 is also configured Identifying the type of the audio content and adding an identification associated with the type to the identified audio content; and a hardware abstraction layer 202 configured to receive audio content data and identification from the framework layer 201, and to audio The content data is transferred to the processing unit 203 corresponding to the identification.
  • the audio content data may be pulse code modulated data, wherein: the frame layer 201 is further configured to perform pulse code modulation on the audio content to obtain audio content data; and the audio content data Transfer to the hardware abstraction layer 202.
  • FIG. 3 is a schematic structural diagram of an Android-based audio content processing system according to a preferred embodiment of the present invention.
  • the system may further include: a music/video player APP 204 configured to provide the audio content; and the framework layer 201, further configured to pass a media player (Mediaplayer)/track (AudioTrack) Application Programming Interface (API) 205 receives the audio content.
  • a music/video player APP 204 configured to provide the audio content
  • the framework layer 201 further configured to pass a media player (Mediaplayer)/track (AudioTrack) Application Programming Interface (API) 205 receives the audio content.
  • Mediaplayer Mediaplayer
  • Track AudioTrack
  • API Application Programming Interface
  • the type of audio content includes at least one of the following: Dolby Surround, Dolby Digital, Dolby Pro Logic Surround, Digital Cinema System, and High Fidelity.
  • the processing unit 203 may include at least one of the following: a Dolby processing unit, a digital cinema system processing unit, And high fidelity processing unit. It should be noted that the processing unit 203 in the embodiment of the present invention may be one or more. In the case of multiple processing units 203, each processing unit 203 may be responsible for processing one type of audio content.
  • An exemplary processing unit 203 may be Dolby COPP, which is responsible for processing Dolby content, DTS COPP, which is responsible for processing DTS content, and Qualcomm QTI COPP, which is responsible for processing HiFi content.

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  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

涉及音频数字处理领域，一种基于Android的音频内容处理方法及系统。方法包括：框架层接收所述音频内容（S101）；所述框架层识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识（S102）；以及硬件抽象层接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元（S103）。利用Android框架层对音频内容的类型进行识别，并对类型进行标记，然后在硬件抽象层根据标记将音频内容对应的脉冲编码调制数据传送到与音频内容的类型相对应的处理单元，实现了对不同类型的音频内容进行正确处理。实现了杜比、DTS和HiFi三者在同一系统下的共存。

Description

基于Android的音频内容处理方法及设备
本申请要求于2015年12月15日提交中国专利局、申请号为201510946051.8的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本专利申请涉及音频数字处理领域，具体地，涉及一种基于Android的音频内容处理方法及设备。
背景技术
杜比环绕声(Dolby Surround)是一种将后方效果声道编码至立体声信道中的声音。杜比环绕声重放时需要一台解码器将环绕声信号从编码的声音中分离出来。由于杜比是矩阵环绕声处理方面的权威，杜比定向逻辑技术成为了多声道家庭影院的基础，也是为成千上万的商业录像带、镭射影碟、DVD以及电视节目制作环绕声音轨的参考解码技术。
发明人在实现本发明的过程中发现，自从推出杜比数字多声道电影声音格式后，杜比数字(Dolby Digital)已经取代杜比环绕声成为通过DVD-Video影碟、数字电视以及游戏给消费者提供多声道音频的推荐解码技术。但是，每个杜比数字解码器通过其模拟输出端口兼容杜比定向逻辑立体声信号。
杜比定向逻辑(Dolby Pro Logic)是由美国杜比实验室发明的一种特殊的4-2-4编码技术。该技术把声场信息归纳为左、中、右、环绕4个信息，然后通过特定的编码技术使之合成双声道，演播时通过解码器把双声道重新还原成4个信息进行重放。由于杜比定向逻辑的载体是双声道(立体声)，故而它可以很好地和常规立体声设备(例如，诸如手机的移动终端)兼容，并且可以由普通立体声设备来复制，复制后的节目源经过杜比定向逻辑解码器处理后仍然可获得和母带相同的环绕声效果。
从技术上讲，数字化影院系统(Digital Theatre System，DTS)与包括Dolby Digital在内的其它声音处理系统是完全不同的。Dolby Digital是将音效数据存储在电影胶片的齿孔之间，因为空间的限制而必须采用大量的压缩的模式，这样就不得不牺牲部分音质。DTS公司用一种简单的办法解决了这个问题，即把音效数据存储到另外的CD-ROM中，使其与影像数据同步。这样不但空间得到增加，而且数据流量也可以相对变大，更可以将存储音效数据的CD更换，来播放不同的语言版本。
高保真(High-Fidelity，Hi-Fi)，其定义是：与原来的声音高度相似的重放声音。
目前诸如手机的移动终端中使用的媒体文件大多采用上述几种声音系统。任何声音系统的源文件在到达硬件抽象层(Hardware Abstraction Layer，HAL)后都将成为脉冲编码调制(Pulse Code Modulation，PCM)数据，导致无法对不同源文件进行有针对性的处理。
针对上述技术问题，现有技术中尚无良好解决方案。
发明内容
本发明部分实施例的目的是提供一种基于Android的音频内容处理方法及设备，该方法及设备能够有效辨别PCM数据来源，从而对PCM数据进行有针对性的处理以再现声音。
为了实现上述目的，本发明部分实施例提供了一种基于Android的音频内容处理方法，该方法包括：框架层接收所述音频内容；所述框架层识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及硬件抽象层接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元。
在一个实施例中，所述音频内容数据为脉冲编码调制数据，该方法还 包括：所述框架层对所述音频内容进行脉冲编码调制得到音频内容数据；以及所述框架层将所述音频内容数据传送至所述硬件抽象层。
在一个实施例中，该方法还包括：从音乐/视频播放器APP获取所述音频内容；以及通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口将所述音频内容传送至所述框架层。
在一个实施例中，其中所述音频内容的类型包括以下至少之一：杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。
在一个实施例中，所述处理单元包括以下至少之一：杜比处理单元、数字化影院系统处理单元、以及高保真处理单元。
本发明部分实施例还提供了一种基于Android的音频内容处理系统，该系统包括：框架层，被配置成接收所述音频内容；所述框架层，还被配置成识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及硬件抽象层，被配置成接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元。
在一个实施例中，所述音频内容数据为脉冲编码调制数据，其中：所述框架层，还被配置成对所述音频内容进行脉冲编码调制得到音频内容数据；以及将所述音频内容数据传送至所述硬件抽象层。
在一个实施例中，该系统还包括：音乐/视频播放器APP，被配置成提供所述音频内容；以及所述框架层，还被配置成通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口接收所述音频内容。
在一个实施例中，其中所述音频内容的类型包括以下至少之一：杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。
在一个实施例中，所述处理单元包括以下至少之一：杜比处理单元、数字化影院系统处理单元、以及高保真处理单元。
通过上述技术方案，利用Android框架层对音频内容的类型进行识别， 并对类型进行标记，然后在硬件抽象层根据标记将音频内容对应的脉冲编码调制数据传送到与音频内容的类型相对应的处理单元，实现了对不同类型的音频内容进行正确处理。采用本发明实施例，实现了杜比、DTS和HiFi三者在同一系统下的共存。
本发明部分实施例的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明部分实施例的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明部分实施例，但并不构成对本发明的限制。在附图中：
图1是根据本发明实施方式的基于Android的音频内容处理方法流程图；
图2是根据本发明实施方式的基于Android的音频内容处理系统结构示意图；以及
图3是根据本发明优选实施方式的基于Android的音频内容处理系统结构示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
图1是根据本发明实施方式的基于Android的音频内容处理方法流程图。如图1所示，本发明实施方式提供的基于Android的音频内容处理方法，该方法可以包括：S101，框架层接收所述音频内容；S102，所述框架层识别 所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及S103，硬件抽象层接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元。其中，所述处理单元包括处理音频内容数据的算法。
通过上述技术方案，利用Android框架层对音频内容的类型进行识别，并对类型进行标记，然后在硬件抽象层根据标记将音频内容对应的脉冲编码调制数据传送到与音频内容的类型相对应的处理单元，实现了对不同类型的音频内容进行正确处理。上述技术方案实现了杜比、DTS和HiFi三者在同一系统下的共存。
在实施方式中，可以通过向框架层中的音频内容添加诸如source type(源类型)这样的类型标识来对音频内容的类型进行标识或做标记。source type标识可以例如与其所对应的音频内容或数据绑定，从而伴随音频内容处理的各个过程。在实施方式中，source type标识可以与音频内容数据一起被送框架层传送至硬件抽象层(例如，Audio HAL)。
Android系统一般会在框架层将音频内容进行脉冲编码调制，生成供硬件抽象层使用的脉冲编码调制数据作为音频内容数据。在实施方式中，该方法还包括：所述框架层对所述音频内容进行脉冲编码调制得到音频内容数据；以及所述框架层将所述音频内容数据传送至所述硬件抽象层。
在实施方式中，音频内容可以来自Android APP。在优选的实施方式中，本发明实施例提供的方法还可以包括：从音乐/视频播放器APP获取所述音频内容；以及通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口将所述音频内容传送至所述框架层。
在实施方式中，音频内容的类型可以包括以下至少之一：杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。音频内容的类型可以根据实际需要进行选择以满足更具体的使用要求。
在实施方式中对应与音频内容的类型，处理单元可以包括以下至少之一：杜比处理单元、数字化影院系统处理单元、以及高保真处理单元。这里的处理单元可以是数字信号处理(DSP)单元，可以根据其所接收的音频内容数据对应的类型采用相应的算法对音频内容数据进行处理。在优选的实施方式中，处理单元可以是多个，每一个处理单元负责对一种音频内容进行处理。在这样的实施方式中，可以由硬件抽象层负责根据类型将音频内容数据送入对应的处理单元。
图2是根据本发明实施方式的基于Android的音频内容处理系统结构示意图。如图2所示，本发明实施方式还提供了一种基于Android的音频内容处理系统，该系统可以包括：框架层201，被配置成接收所述音频内容；所述框架层201，还被配置成识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及硬件抽象层202，被配置成接收来自所述框架层201的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元203。
在实施方式中，所述音频内容数据可以为脉冲编码调制数据，其中：所述框架层201，还被配置成对所述音频内容进行脉冲编码调制得到音频内容数据；以及将所述音频内容数据传送至所述硬件抽象层202。
图3是根据本发明优选实施方式的基于Android的音频内容处理系统结构示意图。在优选的实施方式中，该系统还可以包括：音乐/视频播放器APP204，被配置成提供所述音频内容；以及所述框架层201，还被配置成通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口(API)205接收所述音频内容。
在上述实施方式中，音频内容的类型包括以下至少之一：杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。处理单元203可以包括以下至少之一：杜比处理单元、数字化影院系统处理单元、以 及高保真处理单元。需要说明的是，本发明实施例中的处理单元203可以是一个或多个，在多个处理单元203的情况下，每一个处理单元203可以负责对一种音频内容进行处理。举例的处理单元203可以是负责对杜比内容进行处理的Dolby COPP，负责对DTS内容进行处理的DTS COPP，以及负责对HiFi内容进行处理的高通QTI COPP。通过上述技术方案，能够实现杜比、DTS和HiFi三者在同一系统下的共存。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (10)

  1. 一种基于Android的音频内容处理方法，该方法包括：
    框架层接收所述音频内容；
    所述框架层识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及
    硬件抽象层接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元。
  2. 根据权利要求1所述的方法，其中，所述音频内容数据为脉冲编码调制数据，该方法还包括：
    所述框架层对所述音频内容进行脉冲编码调制得到音频内容数据；以及
    所述框架层将所述音频内容数据传送至所述硬件抽象层。
  3. 根据权利要求1或2所述的方法，其中，该方法还包括：
    从音乐/视频播放器APP获取所述音频内容；以及
    通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口将所述音频内容传送至所述框架层。
  4. 根据权利要求1，2或3所述的方法，其中，其中所述音频内容的类型包括以下至少之一：
    杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。
  5. 根据权利要求1至4任一项所述的方法，其中，所述处理单元包括以下至少之一：
    杜比处理单元、数字化影院系统处理单元、以及高保真处理单元。
  6. 一种基于Android的音频内容处理系统，该系统包括：
    框架层，被配置成接收所述音频内容；
    所述框架层，还被配置成识别所述音频内容的类型，并为所识别的音频内容添加与类型相关联的标识；以及
    硬件抽象层，被配置成接收来自所述框架层的音频内容数据和标识，以及将音频内容数据传送到与所述标识相对应的处理单元。
  7. 根据权利要求6所述的系统，其中，所述音频内容数据为脉冲编码调制数据，其中：
    所述框架层，还被配置成对所述音频内容进行脉冲编码调制得到音频内容数据；以及
    将所述音频内容数据传送至所述硬件抽象层。
  8. 根据权利要求6或7所述的系统，其中，该系统还包括：
    音乐/视频播放器APP，被配置成提供所述音频内容；以及
    所述框架层，还被配置成通过媒体播放器(Mediaplayer)/音轨(AudioTrack)应用程序接口接收所述音频内容。
  9. 根据权利要求6，7或8所述的系统，其中，其中所述音频内容的类型包括以下至少之一：
    杜比环绕声、杜比数字、杜比定向逻辑环绕声、数字化影院系统、以及高保真。
  10. 根据权利要求6至9任一项所述的系统，其中，所述处理单元包括以下至少之一：
    杜比处理单元、数字化影院系统处理单元、以及高保真处理单元。
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