CN104240739B - Music playing method and device for mobile terminal - Google Patents
Music playing method and device for mobile terminal Download PDFInfo
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- CN104240739B CN104240739B CN201410449234.4A CN201410449234A CN104240739B CN 104240739 B CN104240739 B CN 104240739B CN 201410449234 A CN201410449234 A CN 201410449234A CN 104240739 B CN104240739 B CN 104240739B
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Abstract
The invention belongs to the technical field of mobile terminals, and provides a music playing method and device of a mobile terminal. The method comprises the steps of receiving audio file playing request information, wherein the playing request information contains identification information of an audio file to be played; obtaining the corresponding audio file to be played according to the identification information, decoding the audio file to be played, and obtaining corresponding pulse code modulation (PCM) audio data; writing the PCM audio data in a preset buffering area through a first thread; reading the PCM audio data out from the preset buffering area through a second thread and playing the PCM audio data. When music is played, the PCM audio data are obtained through storing and decoding of the preset buffering area, so that the PCM audio data can be read out from the preset buffering area and played when the decoding capacity of a CPU is inadequate, and the jamming phenomenon occurring when the mobile terminal plays music is avoided.
Description
Technical field
The invention belongs to technical field of mobile terminals, more particularly to a kind of mobile terminal method for playing music and device.
Background technology
For the mobile terminal of middle low performance, when operation simultaneously is higher than the application program of music player compared with multipriority,
And these application programs are when causing CPU (Central Processing Unit, central processing unit) decoding capability not enough, if moving
Dynamic terminal is opened music player and plays music, then CPU can not be decoded to audio file in time, so as to cause music
There is Caton phenomenon when playing music in device.
The content of the invention
The purpose of the embodiment of the present invention is the method for playing music and device for providing a kind of mobile terminal, existing to solve
Playing music by mobile terminal when there is the problem of Caton phenomenon.
The embodiment of the present invention is achieved in that a kind of method for playing music of mobile terminal, including：
Audio file playing request information is received, the mark of audio file to be played is carried in the playing request information
Information；
Corresponding audio file to be played is obtained according to the identification information, and the audio file to be played is solved
Code, obtains corresponding pulse code modulation PCM audio data；
The PCM audio data is write by pre-set buffer area by first thread；
The PCM audio data is read from the pre-set buffer area by the second thread and is played.
The another object of the embodiment of the present invention is to provide a kind of music player of mobile terminal, including：
Playing request information receiving module, for receiving audio file playing request information, in the playing request information
Carry the identification information of audio file to be played；
Decoder module, for obtaining corresponding audio file to be played according to the identification information, and to described to be played
Audio file is decoded, and obtains corresponding pulse code modulation PCM audio data；
Buffering area writing module, for the PCM audio data to be write into pre-set buffer area by first thread；
Audio playing module, for reading the PCM audio data simultaneously from the pre-set buffer area by the second thread
Play.
The beneficial effect that the embodiment of the present invention exists compared with prior art is：The embodiment of the present invention is by receiving sound
During frequency file playing request information, audio file to be played is decoded, obtain corresponding PCM audio data, and by the
One thread is by PCM audio data write-in pre-set buffer area, then reads PCM audio data from pre-set buffer area by the second thread
And play, thus when music is played, the PCM audio data that decoding is obtained is stored by pre-set buffer area, so as in CPU decodings
From pre-set buffer area reading PCM audio data and can also be played during scarce capacity, prevent card occur during playing music by mobile terminal
Phenomenon.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to embodiment or description of the prior art
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only more of the invention
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is that the method for playing music of mobile terminal provided in an embodiment of the present invention realizes flow chart；
Fig. 2 be mobile terminal provided in an embodiment of the present invention method for playing music step S102 described in wait to broadcast to described
What playback frequency file was decoded implements flow chart；
Fig. 3 is that the method for playing music of the mobile terminal that another embodiment of the present invention is provided realizes flow chart；
Fig. 4 is the structured flowchart of the music player of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention to audio file to be played by when audio file playing request information is received, solving
Code, obtains corresponding PCM audio data, and PCM audio data is write into pre-set buffer area by first thread, then by second
Thread reads PCM audio data and plays from pre-set buffer area, thus when music is played, is stored by pre-set buffer area and solved
The PCM audio data that code is obtained, so as to when CPU decoding capabilities are not enough also PCM audio data can be read simultaneously from pre-set buffer area
Play, prevent Caton phenomenon occur during playing music by mobile terminal.
Mobile terminal in the embodiment of the present invention can include mobile phone (or being " honeycomb " phone) and with movement
The computer of terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device,
They exchange language and/or data with wireless access network.For example, PCS (Personal Communication
Service, PCS) phone, wireless phone, Session initiation Protocol (Session Initiation Protocol, SIP) phone,
WLL (Wireless Local Loop, WLL) is stood, personal digital assistant (Personal Digital
Assistant, PDA) etc. equipment, be not limited thereto.
Fig. 1 shows the flow chart of realizing of the method for playing music of mobile terminal provided in an embodiment of the present invention, describes in detail such as
Under：
In step S101, audio file playing request information is received, carried in the playing request information to be played
The identification information of audio file.
In embodiments of the present invention, mobile terminal receives the audio file playing request information of user input, playing request
The identification information of audio file to be played is carried in information, the identification information of strip sowing playback frequency file can include sound to be played
The filename of frequency file, store path and sample rate, are not limited thereto.
In step s 102, corresponding audio file to be played is obtained according to the identification information, and to described to be played
Audio file is decoded, and obtains corresponding pulse code modulation PCM audio data.
According to the filename and store path of audio file to be played, audio file to be played is obtained, then treat by CPU
Play audio file to be decoded, (Pulse Code Modulation, pulse is compiled to obtain the corresponding PCM of audio file to be played
Code modulation) voice data.
In step s 103, the PCM audio data is write by pre-set buffer area by first thread.
After mobile terminal is decoded to audio file to be played, the PCM audio data that will be obtained by first thread is write
Enter pre-set buffer area.
In step S104, the PCM audio data is read from the pre-set buffer area by the second thread and is played.
When mobile terminal needs to play audio file, PCM audio data is read from pre-set buffer area by the second thread
And play.Part is played relative to the audio in existing audio playing frame, the embodiment of the present invention significantly reduces movement
Occurs the possibility of Caton phenomenon during terminal plays music, additionally, passing through the embodiment of the present invention, it is possible to decrease to mobile terminal
The requirement of the decoding capability of CPU, so as to reduce the cost of mobile terminal.
Alternatively, when the PCM audio data is write into pre-set buffer area by first thread described in step S103, institute
Stating method also includes：
The pre-set buffer area is locked, to prevent pre-set buffer area described in second thread accesses；
The PCM audio data is being read from the pre-set buffer area by the second thread described in step S104 and is being played
When, methods described also includes：
The pre-set buffer area is locked, to prevent the first thread from accessing the pre-set buffer area.
In embodiments of the present invention, pre-set buffer area can only be by a thread locked at any one moment.Need explanation
If the second thread attempts to lock pre-set buffer area, and now first thread has locked pre-set buffer area, then
Two threads enter resting state, once first thread is unlocked to pre-set buffer area, then the second thread just can be to default slow
Area is rushed to be locked.Similarly, if first thread attempts to lock pre-set buffer area, and now the second thread locked it is pre-
If buffering area, then first thread enters resting state, once the second thread is unlocked to pre-set buffer area, then first thread is just
Pre-set buffer area can be locked.By locking and unblock to pre-set buffer area, ensure that at any one moment
Only one of which thread accesses pre-set buffer area.
Fig. 2 to show and implement flow chart to what the audio file to be played was decoded described in step S102,
Reference picture 2：
In step s 201, when the state data memory in the pre-set buffer area changes, judge described default slow
Rush whether area there are enough memory spaces.
In step S202, if the pre-set buffer area there are enough memory spaces, the audio file to be played is entered
Row decoding.
In embodiments of the present invention, if the state data memory in pre-set buffer area changes, determine whether to preset
Whether buffering area has enough memory spaces.Judge whether pre-set buffer area there are enough memory spaces to be specially：Judge pre-set buffer
Whether the remaining space size in area is more than or equal to the space size shared by the PCM audio data for once decoding and obtaining, if so,
Then judge that pre-set buffer area there are enough memory spaces；If it is not, then judging that pre-set buffer area does not have enough memory spaces.
Further, before judging whether the pre-set buffer area has enough memory spaces described in step S201, step
The audio file to be played is decoded described in S102 also include：
Judge whether the state data memory in the pre-set buffer area changes；
If the first thread writes the PCM audio data to the pre-set buffer area, or second thread from
The PCM audio data is read in the pre-set buffer area, then judges that the state data memory in the pre-set buffer area becomes
Change.
In embodiments of the present invention, by judge a certain moment first thread or the second thread whether access preset buffering area
Whether the state data memory to judge pre-set buffer area changes.If at a time, first thread or the second thread are visited
Ask that pre-set buffer area, i.e. first thread write PCM audio data to pre-set buffer area, or the second thread is from pre-set buffer area
PCM audio data is read, then judges that the state data memory in pre-set buffer area changes.If at a time, first thread
All there is no access preset buffering area with the second thread, then judge that the state data memory in pre-set buffer area does not change.
Fig. 3 shows the flow chart of realizing of the method for playing music of the mobile terminal that another embodiment of the present invention is provided, ginseng
According to Fig. 3：
In step S301, audio file playing request information is received, carried in the playing request information to be played
The identification information of audio file；
In step s 302, corresponding audio file to be played is obtained according to the identification information, and to described to be played
Audio file is decoded, and obtains corresponding pulse code modulation PCM audio data；
In step S303, the PCM audio data is write by pre-set buffer area by first thread；
In step s 304, the PCM audio data is read from the pre-set buffer area by the second thread and is played；
In step S305, when audio file pause playing request information is received, second thread from institute is recorded
State the position of the PCM audio data of last bit of pre-set buffer area reading.
Wherein, step S301 to step S304 and step S101 to step S104 is corresponded, and be will not be repeated here.In step
In rapid S305, if audio file is played in mobile terminal pause, last ratio that the second thread reads from pre-set buffer area is recorded
The position of special PCM audio data, with when the audio file is played next time, from next ratio of the read-out position of last registration
Rise abruptly reading PCM audio data.
Preferably, the capacity in the pre-set buffer area is equal to shared drive capacity × N, wherein, N is more than or equal to 1
Integer.Wherein, the audio frame sign of shared drive capacity=frame number × audio file to be played, the audio of audio file to be played
The audio sample digit of the voice-grade channel number of frame sign=audio file to be played × audio file to be played, frame number=broadcasting is led to
The audio sample rate of road frame number × audio file to be played/broadcasting channel sample rate.
Herein, the size in pre-set buffer area can be N times of the corresponding shared drive capacity of audio file to be played.
Alternatively, pre-set buffer area is dimensioned to the big of the corresponding shared drive capacity of audio file to be played
It is small, can be on the premise of Installed System Memory be saved, it is ensured that not interim card during playing music by mobile terminal.
The embodiment of the present invention to audio file to be played by when audio file playing request information is received, solving
Code, obtains corresponding PCM audio data, and PCM audio data is write into pre-set buffer area by first thread, then by second
Thread reads PCM audio data and plays from pre-set buffer area, thus when music is played, is stored by pre-set buffer area and solved
The PCM audio data that code is obtained, so as to when CPU decoding capabilities are not enough also PCM audio data can be read simultaneously from pre-set buffer area
Play, prevent Caton phenomenon occur during playing music by mobile terminal.
Fig. 4 shows the structured flowchart of the music player of mobile terminal provided in an embodiment of the present invention, and the device can
For the method for playing music of mobile terminal of the service chart 1 described in Fig. 3.For convenience of description, illustrate only and this implementation
The related part of example.It should be noted that the music player of mobile terminal can be mobile terminal in the embodiment of the present invention,
It can also be the device for being built in mobile terminal.
Reference picture 4, the device includes：
Playing request information receiving module 41, for receiving audio file playing request information, the playing request information
In carry the identification information of audio file to be played；
Decoder module 42, for obtaining corresponding audio file to be played according to the identification information, and waits to broadcast to described
Playback frequency file is decoded, and obtains corresponding pulse code modulation PCM audio data；
Buffering area writing module 43, for the PCM audio data to be write into pre-set buffer area by first thread；
Audio playing module 44, for reading the PCM audio data from the pre-set buffer area by the second thread
And play.
Preferably, the decoder module 42 includes：
First judging submodule 421, when being changed for the state data memory in the pre-set buffer area, judges institute
State whether pre-set buffer area there are enough memory spaces；
Decoding sub-module 422, if having enough memory spaces for the pre-set buffer area, to the audio text to be played
Part is decoded.
Further, the decoder module 42 also includes the second judging submodule 423, second judging submodule 423
Specifically for：
Judge whether the state data memory in the pre-set buffer area changes；
If the first thread writes the PCM audio data to the pre-set buffer area, or second thread from
The PCM audio data is read in the pre-set buffer area, then judges that the state data memory in the pre-set buffer area becomes
Change.
Preferably, described device also includes：
Read-out position logging modle 45, for when audio file pause playing request information is received, recording described the
The position of the PCM audio data of last bit that two threads read from the pre-set buffer area.
Preferably, the capacity in the pre-set buffer area is equal to shared drive capacity × N, wherein, N is more than or equal to 1
Integer.
The embodiment of the present invention to audio file to be played by when audio file playing request information is received, solving
Code, obtains corresponding PCM audio data, and PCM audio data is write into pre-set buffer area by first thread, then by second
Thread reads PCM audio data and plays from pre-set buffer area, thus when music is played, is stored by pre-set buffer area and solved
The PCM audio data that code is obtained, so as to when CPU decoding capabilities are not enough also PCM audio data can be read simultaneously from pre-set buffer area
Play, prevent Caton phenomenon occur during playing music by mobile terminal.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of method for playing music of mobile terminal, it is characterised in that including：
Audio file playing request information is received, the mark letter of audio file to be played is carried in the playing request information
Breath, wherein, the identification information includes filename, store path and the sample rate of the audio file to be played；
Corresponding audio file to be played is obtained according to the identification information, and the audio file to be played is decoded,
Obtain corresponding pulse code modulation PCM audio data；
The PCM audio data is write by pre-set buffer area by first thread；
The PCM audio data is read from the pre-set buffer area by the second thread and is played；
It is described decoding is carried out to the audio file to be played to include：
When state data memory in the pre-set buffer area changes, judge whether the pre-set buffer area has and store enough
Space；
If the pre-set buffer area there are enough memory spaces, the audio file to be played is decoded.
2. the method for claim 1, it is characterised in that judge whether the pre-set buffer area has and store enough described
Before space, described decoding to the audio file to be played also includes：
Judge whether the state data memory in the pre-set buffer area changes；
If the first thread writes the PCM audio data to the pre-set buffer area, or second thread is from described
The PCM audio data is read in pre-set buffer area, then judges that the state data memory in the pre-set buffer area changes.
3. the method for claim 1, it is characterised in that read from the pre-set buffer area in second thread that passes through
Go out after the PCM audio data and broadcasting, methods described also includes：
When audio file pause playing request information is received, record what second thread read from the pre-set buffer area
The position of the PCM audio data of last bit.
4. the method as described in any one of claims 1 to 3, it is characterised in that the capacity in the pre-set buffer area is equal to shared
Memory size × N, wherein, N is the integer more than or equal to 1.
5. a kind of music player of mobile terminal, it is characterised in that including：
Playing request information receiving module, for receiving audio file playing request information, carries in the playing request information
There is the identification information of audio file to be played, wherein, the identification information includes the filename of the audio file to be played, deposits
Storage path and sample rate；
Decoder module, for obtaining corresponding audio file to be played according to the identification information, and to the audio to be played
File is decoded, and obtains corresponding pulse code modulation PCM audio data；
Buffering area writing module, for the PCM audio data to be write into pre-set buffer area by first thread；
Audio playing module, for reading the PCM audio data from the pre-set buffer area by the second thread and playing；
The decoder module includes：
First judging submodule, when being changed for the state data memory in the pre-set buffer area, judges described default
Whether buffering area has enough memory spaces；
Decoding sub-module, if having enough memory spaces for the pre-set buffer area, is carried out to the audio file to be played
Decoding.
6. device as claimed in claim 5, it is characterised in that the decoder module also includes the second judging submodule, described
Second judging submodule specifically for：
Judge whether the state data memory in the pre-set buffer area changes；
If the first thread writes the PCM audio data to the pre-set buffer area, or second thread is from described
The PCM audio data is read in pre-set buffer area, then judges that the state data memory in the pre-set buffer area changes.
7. device as claimed in claim 5, it is characterised in that described device also includes：
Read-out position logging modle, for when audio file pause playing request information is received, recording second thread
The position of the PCM audio data of last bit read from the pre-set buffer area.
8. the device as described in any one of claim 5 to 7, it is characterised in that the capacity in the pre-set buffer area is equal to shared
Memory size × N, wherein, N is the integer more than or equal to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449234.4A CN104240739B (en) | 2014-09-04 | 2014-09-04 | Music playing method and device for mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449234.4A CN104240739B (en) | 2014-09-04 | 2014-09-04 | Music playing method and device for mobile terminal |
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| Publication Number | Publication Date |
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| CN104240739A CN104240739A (en) | 2014-12-24 |
| CN104240739B true CN104240739B (en) | 2017-05-24 |
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| CN201410449234.4A Expired - Fee Related CN104240739B (en) | 2014-09-04 | 2014-09-04 | Music playing method and device for mobile terminal |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658117A (en) * | 2016-12-30 | 2017-05-10 | 百度在线网络技术（北京）有限公司 | Method and device for processing audio/video data |
| CN108345811B (en) * | 2017-01-23 | 2021-07-23 | 杭州爱钥医疗健康科技有限公司 | Radio frequency interference suppression method and device |
| CN107993679A (en) * | 2017-11-02 | 2018-05-04 | 广东思派康电子科技有限公司 | A kind of playback method of the buffer-type MP3 music players of embedded bluetooth headset |
| CN108668170B (en) * | 2018-06-01 | 2021-07-02 | 北京市商汤科技开发有限公司 | Image information processing method and device, and storage medium |
| CN108877845B (en) * | 2018-06-29 | 2020-11-03 | 广州酷狗计算机科技有限公司 | Song playing method and device |
| CN109634809A (en) * | 2018-12-05 | 2019-04-16 | 腾讯音乐娱乐科技（深圳）有限公司 | A kind of audio plays monitoring method and relevant device |
| CN113380280B (en) * | 2018-12-29 | 2022-11-22 | 百度在线网络技术（北京）有限公司 | Data processing method, device and storage medium |
| CN111736796A (en) * | 2020-05-15 | 2020-10-02 | 深圳市战音科技有限公司 | Real-time stream data processing method, device, equipment and storage medium |
| CN112689194B (en) * | 2020-12-21 | 2023-02-10 | 展讯半导体(成都)有限公司 | Functional machine video music matching method and device, terminal equipment and storage medium |
| CN113556292B (en) * | 2021-06-18 | 2022-09-13 | 珠海惠威科技有限公司 | Audio playing method and system of IP network |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20170524 |