CN107526634A - The method for supporting multiple sound pick-up outfits simultaneously in Android device - Google Patents
The method for supporting multiple sound pick-up outfits simultaneously in Android device Download PDFInfo
- Publication number
- CN107526634A CN107526634A CN201710772036.5A CN201710772036A CN107526634A CN 107526634 A CN107526634 A CN 107526634A CN 201710772036 A CN201710772036 A CN 201710772036A CN 107526634 A CN107526634 A CN 107526634A
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- China
- Prior art keywords
- sound pick
- outfit
- audio
- virtual sound
- recording
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
- G06F9/4451—User profiles; Roaming
Abstract
The present invention relates to Android device technology.The problem of not supporting the present invention is to solve existing Android device while being recorded using multiple sound pick-up outfits, there is provided a kind of method for supporting multiple sound pick-up outfits simultaneously in Android device, can be summarized as：It is a virtual sound pick-up outfit that each sound pick-up outfit, which is corresponded, each virtual sound pick-up outfit taken out can be used for the application program on upper strata, it is added to firstly the need of each virtual sound pick-up outfit taken out in the sound configuration file of start, then system is according to the information configured, actively each sound pick-up outfit taken out is added in the Audioflinger of system, finally increase selects the function of the virtual sound pick-up outfit taken out in Audioflinger records flow, to realize Android device while support the function of multiple sound pick-up outfits recording.The invention has the advantages that facilitate user, suitable for Android device.
Description
Technical field
The present invention relates to Android device technology, the technology of sound pick-up outfit more particularly in Android device.
Background technology
With the rapid development based on Android operation system and the Android device such as the propulsion of the integration of three networks, intelligent television should
Increasingly abundanter with scene, the user of the Android device such as intelligent television is also equipped with various peripheral hardwares for it, wherein sound pick-up outfit because
Enriched for application scenarios, so frequency of use more and more higher, but the Android device such as current intelligent television is only capable of supporting simultaneously
One sound pick-up outfit is recorded, such as accesses the camera with sound-recording function and the remote control with sound-recording function or Mike simultaneously
During wind, this several equipment can not just use simultaneously, substantially reduce the experience sense of these Android devices.
If desired current Android device operating system Frame Design uses only to support a sound pick-up outfit recording simultaneously
The sound pick-up outfit of other accesses, then need user's actively selection switching.The frame of Android operation system in current Android device
Rack-layer is realized to the processing of recording by Audioflinger, but only supports to open a record based on present recording strategy
Sound equipment, therefore can not support to open multiple sound pick-up outfits simultaneously, its workflow to recording processing is：Application program passes through
The method for calling Android AudioRecord and MediaRecorder (system recording API) to provide starts to record, then
Android AudioRecord and MediaRecorder is by way of JNI (Java Native Interface), readjustment
Android AudioRecord and MediaRecorder local service start the interface of recording, then call
Corresponding preparation before Audioflinger and AudioPolicyServiec (system recording strategy) is recorded, such as select
Sound pick-up outfit and the related recording parameter of setting etc. are selected, after the completion of preparation, then passes through Audioflinger and calls and recording is set
The driving of equipment starts to gather sound.Wherein AudioRecord is mainly realized and recorded while playing (AudioRecord+
AudioTrack) and the real-time processing to audio, the encapsulation of various audios can be realized with code, but its output is
PCM speech datas, it is impossible to be played device and directly play, it is necessary to first write code and realize data encoding and compression.Current
Recording, coding and compression etc. have been integrated with MediaRecorder, and has supported a small amount of recorded audio form, as MP3,
AAC, WAV and OGG etc., relevant interface is directly invoked, size of code is small, but it can not be handled in real time.
The content of the invention
The invention aims to solve current Android device not support while recorded using multiple sound pick-up outfits
Problem, there is provided a kind of method for supporting multiple sound pick-up outfits simultaneously in Android device.
The present invention solves its technical problem, and the technical scheme of use is to support multiple sound pick-up outfits simultaneously in Android device
Method, it is characterised in that comprise the following steps：
Step 1, by each sound pick-up outfit correspond be a virtual sound pick-up outfit, access at least one sound pick-up outfit
One-to-one sound pick-up outfit node is created in Linux, and makes it to enter in Android HAL layers by multithreading to it
Row read-write, and it is encapsulated as library file；
Step 2, each virtual recording is added in the configuration file of audio_policy.conf (system sounds configuration strategy)
Audio_hw_modules corresponding to equipment (sound pick-up outfit abstract structure body), so as to be loaded in AudioPolicyManager
The relevant information of the configuration file；
Step 3, increase newly-increased each virtual sound pick-up outfit interface in Audioflinger audio_interfaces,
So that openInput can select newly-increased interface；
Step 4, newly-increased each sound pick-up outfit is added in audio.h, so that application program passes through in recording
GetInput can select corresponding virtual sound pick-up outfit；
Step 5, in use, system starts, each virtual sound pick-up outfit can be loaded into according to audio_policy；
When step 6, application program need recording, AudioRecord is called to start thread of recording, in Audiopolicy
Read each sound pick-up outfit node in real time by library file, read the pid and vid of the sound pick-up outfit currently connected, according to being read
Information select corresponding to virtual sound pick-up outfit, SO corresponding to calling is in Android HAL layers from corresponding virtual recording
Data are read in equipment.
The invention has the advantages that in the present invention program, by supporting multiple recording simultaneously in above-mentioned Android device
The method of equipment, Android device can be made while use multiple sound pick-up outfits, and be independent of each other, facilitate user, improve user's body
Test sense.
Embodiment
With reference to embodiment, technical scheme is described in detail.
The method for supporting multiple sound pick-up outfits simultaneously in Android device of the present invention, it is：By each sound pick-up outfit one
One corresponds to a virtual sound pick-up outfit, accesses at least one sound pick-up outfit and creates one-to-one sound pick-up outfit section in Linux
Point, and make it to be written and read in Android HAL layers by multithreading to it, and it is encapsulated as library file；Then exist
Audio_hw_modules corresponding to each virtual sound pick-up outfit is added in audio_policy.conf configuration file, so that
The relevant information of the configuration file is loaded in AudioPolicyManager；Again in Audioflinger audio_
Increase newly-increased each virtual sound pick-up outfit interface in interfaces, so as to openInput can select it is newly-increased
interface；Then newly-increased each sound pick-up outfit is added in audio.h, so that application program passes through in recording
GetInput can select corresponding virtual sound pick-up outfit；When in use, system starts, and can be loaded into according to audio_policy
Each virtual sound pick-up outfit, then when application program needs recording, AudioRecord is called to start thread of recording,
Read each sound pick-up outfit node in Audiopolicy in real time by library file, read the sound pick-up outfit currently connected pid and
Vid, the virtual sound pick-up outfit according to corresponding to being selected the information read, SO corresponding to calling in Android HAL layers from
Data are read in corresponding virtual sound pick-up outfit.
Embodiment
The method for supporting multiple sound pick-up outfits simultaneously in the Android device of the embodiment of the present invention, its specific processing step is such as
Under：
Step 1, by each sound pick-up outfit correspond be a virtual sound pick-up outfit, access at least one sound pick-up outfit
One-to-one sound pick-up outfit node is created in Linux, and makes it to enter in Android HAL layers by multithreading to it
Row read-write, and it is encapsulated as library file；
Step 2, each virtual recording is added in the configuration file of audio_policy.conf (system sounds configuration strategy)
Audio_hw_modules corresponding to equipment (sound pick-up outfit abstract structure body), so as to be loaded in AudioPolicyManager
The relevant information of the configuration file；
Step 3, increase newly-increased each virtual sound pick-up outfit interface in Audioflinger audio_interfaces,
So that openInput can select newly-increased interface；
Step 4, newly-increased each sound pick-up outfit is added in audio.h, so that application program passes through in recording
GetInput can select corresponding virtual sound pick-up outfit；
Step 5, in use, system starts, each virtual sound pick-up outfit can be loaded into according to audio_policy；
When step 6, application program need recording, AudioRecord is called to start thread of recording, in Audiopolicy
Read each sound pick-up outfit node in real time by library file, read the pid and vid of the sound pick-up outfit currently connected, according to being read
Information select corresponding to virtual sound pick-up outfit, SO corresponding to calling is in Android HAL layers from corresponding virtual recording
Data are read in equipment.
Here, each virtual sound pick-up outfit taken out can be used for the application program on upper strata, it is necessary first to abstract
Each virtual sound pick-up outfit gone out is added in the sound configuration file (audio_policy.conf) of start, then system according to
The information configured, actively each sound pick-up outfit taken out is added in the Audioflinger of system, finally existed
The function for the virtual sound pick-up outfit that increase selection takes out, is so having already turned on a record in Audioflinger recording flows
After sound equipment, the virtual sound pick-up outfit that opening system takes out can also be further continued for, to realize Android device while support multiple
The function of sound pick-up outfit recording.
Claims (1)
1. the method for supporting multiple sound pick-up outfits simultaneously in Android device, it is characterised in that comprise the following steps：
Step 1, by each sound pick-up outfit correspond be a virtual sound pick-up outfit, access at least one sound pick-up outfit and exist
Linux creates one-to-one sound pick-up outfit node, and makes it to be carried out in Android HAL layers by multithreading to it
Read-write, and it is encapsulated as library file；
Step 2, audio_hw_ corresponding to each virtual sound pick-up outfit is added in audio_policy.conf configuration file
Modules, so as to load the relevant information of the configuration file in AudioPolicyManager；
Step 3, increase newly-increased each virtual sound pick-up outfit interface in Audioflinger audio_interfaces, so as to
OpenInput can select newly-increased interface；
Step 4, newly-increased each sound pick-up outfit is added in audio.h, so that application program passes through getInput in recording
Virtual sound pick-up outfit corresponding to can selecting；
Step 5, in use, system starts, each virtual sound pick-up outfit can be loaded into according to audio_policy；
When step 6, application program need recording, call AudioRecord to start thread of recording, pass through in Audiopolicy
Library file reads each sound pick-up outfit node in real time, the pid and vid of the sound pick-up outfit currently connected is read, according to the letter read
Breath selects corresponding virtual sound pick-up outfit, and SO corresponding to calling is in Android HAL layers from corresponding virtual sound pick-up outfit
Middle reading data.
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| CN201710772036.5A CN107526634A (en) | 2017-08-31 | 2017-08-31 | The method for supporting multiple sound pick-up outfits simultaneously in Android device |
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| CN201710772036.5A CN107526634A (en) | 2017-08-31 | 2017-08-31 | The method for supporting multiple sound pick-up outfits simultaneously in Android device |
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| CN109471606A (en) * | 2018-10-12 | 2019-03-15 | 深圳市小畅科技有限公司 | A kind of method of Android platform real-time recording concurrent processing |
| CN109830248A (en) * | 2018-12-14 | 2019-05-31 | 维沃移动通信有限公司 | A kind of audio recording method and terminal device |
| CN110113494A (en) * | 2019-05-05 | 2019-08-09 | Oppo广东移动通信有限公司 | The way of recording and relevant apparatus |
| CN110767234A (en) * | 2019-10-31 | 2020-02-07 | 北京字节跳动网络技术有限公司 | Audio information processing method and device, electronic equipment and storage medium |
| CN111209121A (en) * | 2018-11-22 | 2020-05-29 | 深圳市优必选科技有限公司 | Recording method of application program, terminal device and medium |
| CN112423211A (en) * | 2020-10-26 | 2021-02-26 | 努比亚技术有限公司 | Multi-audio transmission control method, equipment and computer readable storage medium |
| CN112579038A (en) * | 2020-12-24 | 2021-03-30 | 上海商米科技集团股份有限公司 | Built-in recording method and device, electronic equipment and storage medium |
| CN114466231A (en) * | 2021-12-15 | 2022-05-10 | 瑞芯微电子股份有限公司 | Method for receiving and playing hardware source, electronic equipment and display device |
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| CN109471606A (en) * | 2018-10-12 | 2019-03-15 | 深圳市小畅科技有限公司 | A kind of method of Android platform real-time recording concurrent processing |
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| CN111209121A (en) * | 2018-11-22 | 2020-05-29 | 深圳市优必选科技有限公司 | Recording method of application program, terminal device and medium |
| CN111209121B (en) * | 2018-11-22 | 2023-05-23 | 深圳市优必选科技有限公司 | Recording method of application program, terminal equipment and medium |
| CN109830248A (en) * | 2018-12-14 | 2019-05-31 | 维沃移动通信有限公司 | A kind of audio recording method and terminal device |
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| CN110767234A (en) * | 2019-10-31 | 2020-02-07 | 北京字节跳动网络技术有限公司 | Audio information processing method and device, electronic equipment and storage medium |
| CN112423211A (en) * | 2020-10-26 | 2021-02-26 | 努比亚技术有限公司 | Multi-audio transmission control method, equipment and computer readable storage medium |
| CN112579038A (en) * | 2020-12-24 | 2021-03-30 | 上海商米科技集团股份有限公司 | Built-in recording method and device, electronic equipment and storage medium |
| CN114466231A (en) * | 2021-12-15 | 2022-05-10 | 瑞芯微电子股份有限公司 | Method for receiving and playing hardware source, electronic equipment and display device |
| CN114466231B (en) * | 2021-12-15 | 2024-01-23 | 瑞芯微电子股份有限公司 | Method for receiving and playing hardware source, electronic equipment and display device |
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Application publication date: 20171229 |
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