CN104240739A - Music playing method and device for mobile terminal - Google Patents
Music playing method and device for mobile terminal Download PDFInfo
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- CN104240739A CN104240739A CN201410449234.4A CN201410449234A CN104240739A CN 104240739 A CN104240739 A CN 104240739A CN 201410449234 A CN201410449234 A CN 201410449234A CN 104240739 A CN104240739 A CN 104240739A
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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, particularly relate to a kind of method for playing music and device of mobile terminal.
Background technology
For the mobile terminal of middle low performance, when running compared with the application program of multipriority higher than music player simultaneously, and these application programs cause CPU (Central Processing Unit, central processing unit) decoding capability not enough time, if mobile terminal is opened music player and is play music, then CPU can not decode to audio file in time, thus occurs Caton phenomenon when causing music player to play music.
Summary of the invention
The object of the embodiment of the present invention is the method for playing music and the device that provide a kind of mobile terminal, occurs the problem of Caton phenomenon during to solve existing playing music by mobile terminal.
The embodiment of the present invention is achieved in that a kind of method for playing music of mobile terminal, comprising:
Audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
Obtain corresponding audio file to be played according to described identification information, and described audio file to be played is decoded, obtain corresponding pulse code modulation (PCM) pcm audio data;
By the first thread by described pcm audio data write pre-set buffer district;
From described pre-set buffer district, read described pcm audio data by the second thread and play.
Another object of the embodiment of the present invention is the music player providing a kind of mobile terminal, comprising:
Playing request information receiving module, for audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
Decoder module, for obtaining corresponding audio file to be played according to described identification information, and decoding to described audio file to be played, obtaining corresponding pulse code modulation (PCM) pcm audio data;
Buffer zone writing module, for writing pre-set buffer district by the first thread by described pcm audio data;
Audio playing module, for reading described pcm audio data by the second thread and playing from described pre-set buffer district.
The beneficial effect that the embodiment of the present invention compared with prior art exists is: the embodiment of the present invention is by when receiving audio file playing request information, treat displaying audio file to decode, obtain corresponding pcm audio data, and by the first thread by pcm audio data write pre-set buffer district, from pre-set buffer district, read pcm audio data by the second thread again and play, thus when playing music, the pcm audio data of decoding and obtaining are stored by pre-set buffer district, thus also when CPU decoding capability is not enough can reads pcm audio data from pre-set buffer district and play, prevent from occurring Caton phenomenon during playing music by mobile terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the realization flow figure of the method for playing music of the mobile terminal that the embodiment of the present invention provides;
Fig. 2 is the specific implementation process flow diagram of decoding to described audio file to be played described in the method for playing music step S102 of the mobile terminal that the embodiment of the present invention provides;
Fig. 3 is the realization flow figure of the method for playing music of the mobile terminal that another embodiment of the present invention provides;
Fig. 4 is the structured flowchart of the music player of the mobile terminal that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention is by when receiving audio file playing request information, treat displaying audio file to decode, obtain corresponding pcm audio data, and by the first thread by pcm audio data write pre-set buffer district, from pre-set buffer district, read pcm audio data by the second thread again and play, thus when playing music, the pcm audio data of decoding and obtaining are stored by pre-set buffer district, thus also when CPU decoding capability is not enough can reads pcm audio data from pre-set buffer district and play, prevent from occurring Caton phenomenon during playing music by mobile terminal.
Mobile terminal in the embodiment of the present invention can comprise mobile phone (or being called " honeycomb " phone) and have the computing machine of mobile terminal, such as, can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and wireless access network exchange language and/or data.Such as, Personal Communications Services (Personal Communication Service, PCS) phone, wireless phone, Session initiation Protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) stand, personal digital assistant (Personal Digital Assistant, the equipment such as PDA), in this no limit.
Fig. 1 shows the realization flow figure of the method for playing music of the mobile terminal that the embodiment of the present invention provides, and details are as follows:
In step S101, audio reception file playing request information, carries the identification information of audio file to be played in described playing request information.
In embodiments of the present invention, mobile terminal receives the audio file playing request information of user's input, the identification information of audio file to be played is carried in playing request information, identification information with displaying audio file can comprise the filename of audio file to be played, store path and sampling rate, in this no limit.
In step s 102, obtain corresponding audio file to be played according to described identification information, and described audio file to be played is decoded, obtain corresponding pulse code modulation (PCM) pcm audio data.
According to filename and the store path of audio file to be played, obtain audio file to be played, treat displaying audio file by CPU again to decode, obtain PCM corresponding to audio file to be played (Pulse Code Modulation, pulse code modulation (PCM)) voice data.
In step s 103, by the first thread, described pcm audio data are write pre-set buffer district.
Mobile terminal is treated after displaying audio file decodes, the pcm audio data write pre-set buffer district that will be obtained by the first thread.
In step S104, from described pre-set buffer district, read described pcm audio data by the second thread and play.
When mobile terminal needs displaying audio file, read pcm audio data playing by the second thread from pre-set buffer district.Part is play relative to the audio frequency in existing audio frequency playing frame, the possibility of Caton phenomenon is there is in the embodiment of the present invention when significantly reducing playing music by mobile terminal, in addition, pass through the embodiment of the present invention, the requirement of the decoding capability of the CPU to mobile terminal can be reduced, thus reduce the cost of mobile terminal.
Alternatively, when described pcm audio data being write pre-set buffer district by the first thread described in step S103, described method also comprises:
Described pre-set buffer district is locked, to prevent pre-set buffer district described in described second thread accesses;
When being read described pcm audio data by the second thread and play from described pre-set buffer district described in step S104, described method also comprises:
Described pre-set buffer district is locked, to prevent pre-set buffer district described in described first thread accesses.
In embodiments of the present invention, pre-set buffer district can only by a thread locked in any one moment.It should be noted that, if the second thread is attempted to lock to pre-set buffer district, and now the first thread has locked pre-set buffer district, then the second thread enters dormant state, once the first thread unlocks pre-set buffer district, then the second thread just can lock to pre-set buffer district.In like manner, if the first thread is attempted to lock to pre-set buffer district, and now the second thread has locked pre-set buffer district, then the first thread enters dormant state, once the second thread unlocks pre-set buffer district, then the first thread just can lock to pre-set buffer district.By locking and unlocking pre-set buffer district, can ensure to only have a thread accesses pre-set buffer district in any one moment.
Fig. 2 shows to the specific implementation process flow diagram that described audio file to be played is decoded described in step S102, with reference to Fig. 2:
In step s 201, when the state data memory in described pre-set buffer district changes, judge whether described pre-set buffer district has enough storage spaces.
In step S202, if there are enough storage spaces in described pre-set buffer district, then described audio file to be played is decoded.
In embodiments of the present invention, if the state data memory in pre-set buffer district changes, then judge whether pre-set buffer district has enough storage spaces further.Judge whether pre-set buffer district has enough storage spaces to be specially: judge whether the remaining space size in pre-set buffer district is more than or equal to the space size shared by pcm audio data of once decoding and obtaining, if so, then judge that there are enough storage spaces in pre-set buffer district; If not, then judge that pre-set buffer district does not have enough storage spaces.
Further, before judging described in step S201 whether described pre-set buffer district has enough storage spaces, described in step S102, described audio file to be played is decoded and also comprises:
Judge whether the state data memory in described pre-set buffer district changes;
If described first thread writes described pcm audio data to described pre-set buffer district, or described second thread reads described pcm audio data from described pre-set buffer district, then judge that the state data memory in described pre-set buffer district changes.
In embodiments of the present invention, by judging whether access preset buffer zone judges whether the state data memory in pre-set buffer district changes for a certain moment first thread or the second thread.If at a time, first thread or the second thread accesses pre-set buffer district, namely the first thread write pcm audio data are to pre-set buffer district, or the second thread reads pcm audio data from pre-set buffer district, then judge that the state data memory in pre-set buffer district changes.If at a time, the first thread and the second thread all do not have access preset buffer zone, then judge that the state data memory in pre-set buffer district does not change.
Fig. 3 shows the realization flow figure of the method for playing music of the mobile terminal that another embodiment of the present invention provides, with reference to Fig. 3:
In step S301, audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
In step s 302, obtain corresponding audio file to be played according to described identification information, and described audio file to be played is decoded, obtain corresponding pulse code modulation (PCM) pcm audio data;
In step S303, by the first thread by described pcm audio data write pre-set buffer district;
In step s 304, from described pre-set buffer district, read described pcm audio data by the second thread and play;
In step S305, when receiving audio file and suspending playing request information, record the position of the pcm audio data of last bit that described second thread reads from described pre-set buffer district.
Wherein, step S301 to step S304 and step S101 to step S104 one_to_one corresponding, does not repeat them here.In step S305, if mobile terminal suspends displaying audio file, then record the position of the pcm audio data of last bit that the second thread reads from pre-set buffer district, with upper once play this audio file time, from the following bit of the read-out position of last registration, read pcm audio data.
Preferably, the capacity in described pre-set buffer district equals shared drive capacity × N, wherein, N be more than or equal to 1 integer.Wherein, the audio frame size of shared drive capacity=frame number × audio file to be played, the audio sample figure place of the voice-grade channel number × audio file to be played of the audio frame size=audio file to be played of audio file to be played, the audio sample rate/broadcasting channel sample rate of frame number=broadcasting passage frame number × audio file to be played.
Here, the size in pre-set buffer district can be N times of the shared drive capacity that audio file to be played is corresponding.
Alternatively, the size in pre-set buffer district is set to the size of shared drive capacity corresponding to audio file to be played, under the prerequisite of saving Installed System Memory, can block when ensureing playing music by mobile terminal and time.
The embodiment of the present invention is by when receiving audio file playing request information, treat displaying audio file to decode, obtain corresponding pcm audio data, and by the first thread by pcm audio data write pre-set buffer district, from pre-set buffer district, read pcm audio data by the second thread again and play, thus when playing music, the pcm audio data of decoding and obtaining are stored by pre-set buffer district, thus also when CPU decoding capability is not enough can reads pcm audio data from pre-set buffer district and play, prevent from occurring Caton phenomenon during playing music by mobile terminal.
Fig. 4 shows the structured flowchart of the music player of the mobile terminal that the embodiment of the present invention provides, and this device may be used for the method for playing music of the mobile terminal described in service chart 1 to Fig. 3.For convenience of explanation, illustrate only part related to the present embodiment.It should be noted that, in the embodiment of the present invention, the music player of mobile terminal can be mobile terminal, also can for being built in the device of mobile terminal.
With reference to Fig. 4, this device comprises:
Playing request information receiving module 41, for audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
Decoder module 42, for obtaining corresponding audio file to be played according to described identification information, and decoding to described audio file to be played, obtaining corresponding pulse code modulation (PCM) pcm audio data;
Buffer zone writing module 43, for writing pre-set buffer district by the first thread by described pcm audio data;
Audio playing module 44, for reading described pcm audio data by the second thread and playing from described pre-set buffer district.
Preferably, described decoder module 42 comprises:
First judges submodule 421, for when the state data memory in described pre-set buffer district changes, judges whether described pre-set buffer district has enough storage spaces;
Decoding sub-module 422, if having enough storage spaces for described pre-set buffer district, then decodes to described audio file to be played.
Further, described decoder module 42 also comprises the second judgement submodule 423, described second judge submodule 423 specifically for:
Judge whether the state data memory in described pre-set buffer district changes;
If described first thread writes described pcm audio data to described pre-set buffer district, or described second thread reads described pcm audio data from described pre-set buffer district, then judge that the state data memory in described pre-set buffer district changes.
Preferably, described device also comprises:
Read-out position logging modle 45, for when receiving audio file and suspending playing request information, records the position of the pcm audio data of last bit that described second thread reads from described pre-set buffer district.
Preferably, the capacity in described pre-set buffer district equals shared drive capacity × N, wherein, N be more than or equal to 1 integer.
The embodiment of the present invention is by when receiving audio file playing request information, treat displaying audio file to decode, obtain corresponding pcm audio data, and by the first thread by pcm audio data write pre-set buffer district, from pre-set buffer district, read pcm audio data by the second thread again and play, thus when playing music, the pcm audio data of decoding and obtaining are stored by pre-set buffer district, thus also when CPU decoding capability is not enough can reads pcm audio data from pre-set buffer district and play, prevent from occurring Caton phenomenon during playing music by mobile terminal.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for playing music for mobile terminal, is characterized in that, comprising:
Audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
Obtain corresponding audio file to be played according to described identification information, and described audio file to be played is decoded, obtain corresponding pulse code modulation (PCM) pcm audio data;
By the first thread by described pcm audio data write pre-set buffer district;
From described pre-set buffer district, read described pcm audio data by the second thread and play.
2. the method for claim 1, is characterized in that, describedly carries out decoding to described audio file to be played and comprises:
When the state data memory in described pre-set buffer district changes, judge whether described pre-set buffer district has enough storage spaces;
If there are enough storage spaces in described pre-set buffer district, then described audio file to be played is decoded.
3. method as claimed in claim 2, is characterized in that, described judge whether described pre-set buffer district has enough storage spaces before, described decoding to described audio file to be played also comprises:
Judge whether the state data memory in described pre-set buffer district changes;
If described first thread writes described pcm audio data to described pre-set buffer district, or described second thread reads described pcm audio data from described pre-set buffer district, then judge that the state data memory in described pre-set buffer district changes.
4. the method for claim 1, is characterized in that, described pass through the second thread read from described pre-set buffer district described pcm audio data and play after, described method also comprises:
When receiving audio file and suspending playing request information, record the position of the pcm audio data of last bit that described second thread reads from described pre-set buffer district.
5. the method as described in any one of Claims 1-4, is characterized in that, the capacity in described pre-set buffer district equals shared drive capacity × N, wherein, N be more than or equal to 1 integer.
6. a music player for mobile terminal, is characterized in that, comprising:
Playing request information receiving module, for audio reception file playing request information, carries the identification information of audio file to be played in described playing request information;
Decoder module, for obtaining corresponding audio file to be played according to described identification information, and decoding to described audio file to be played, obtaining corresponding pulse code modulation (PCM) pcm audio data;
Buffer zone writing module, for writing pre-set buffer district by the first thread by described pcm audio data;
Audio playing module, for reading described pcm audio data by the second thread and playing from described pre-set buffer district.
7. device as claimed in claim 6, it is characterized in that, described decoder module comprises:
First judges submodule, for when the state data memory in described pre-set buffer district changes, judges whether described pre-set buffer district has enough storage spaces;
Decoding sub-module, if having enough storage spaces for described pre-set buffer district, then decodes to described audio file to be played.
8. device as claimed in claim 7, it is characterized in that, described decoder module also comprises the second judgement submodule, described second judge submodule specifically for:
Judge whether the state data memory in described pre-set buffer district changes;
If described first thread writes described pcm audio data to described pre-set buffer district, or described second thread reads described pcm audio data from described pre-set buffer district, then judge that the state data memory in described pre-set buffer district changes.
9. device as claimed in claim 6, it is characterized in that, described device also comprises:
Read-out position logging modle, for when receiving audio file and suspending playing request information, records the position of the pcm audio data of last bit that described second thread reads from described pre-set buffer district.
10. the device as described in any one of claim 6 to 9, is characterized in that, the capacity in described pre-set buffer district equals shared drive capacity × N, wherein, N be more than or equal to 1 integer.
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| CN201410449234.4A CN104240739B (en) | 2014-09-04 | 2014-09-04 | Music playing method and device for mobile terminal |
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| CN201410449234.4A CN104240739B (en) | 2014-09-04 | 2014-09-04 | Music playing method and device for mobile terminal |
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| 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 |
| CN108345811A (en) * | 2017-01-23 | 2018-07-31 | 腾讯科技（深圳）有限公司 | Radio frequency interference suppressing method and device |
| CN108877845A (en) * | 2018-06-29 | 2018-11-23 | 广州酷狗计算机科技有限公司 | Playback of songs 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 |
| 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 |
| CN112689194A (en) * | 2020-12-21 | 2021-04-20 | 展讯半导体(成都)有限公司 | Functional machine video music matching method and device, terminal equipment and storage medium |
| 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 |
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| 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 |
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| CN112689194A (en) * | 2020-12-21 | 2021-04-20 | 展讯半导体(成都)有限公司 | Functional machine video music matching method and device, terminal equipment and storage medium |
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| CN113556292A (en) * | 2021-06-18 | 2021-10-26 | 珠海惠威科技有限公司 | Audio playing method and system of IP network |
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Granted publication date: 20170524 |