CN101938648B - Method and system for converting format of media file - Google Patents
Method and system for converting format of media file Download PDFInfo
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- CN101938648B CN101938648B CN 200910235797 CN200910235797A CN101938648B CN 101938648 B CN101938648 B CN 101938648B CN 200910235797 CN200910235797 CN 200910235797 CN 200910235797 A CN200910235797 A CN 200910235797A CN 101938648 B CN101938648 B CN 101938648B
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Abstract
The invention discloses a method and a system for converting the format of a media file. The method comprises the following steps of: acquiring the media information of the media file supported by user equipment according to the model of the user equipment; according to the media information, selecting an encoder which can encode the media file supported by the user equipment from a media encoding database; and encoding a file to be converted by using the selected encoder and generating the media file supported by the user equipment. Based on the method, the system mainly comprises a media information acquiring module, an encoder selecting module and an encoding module. The method and the system can greatly reduce the configuration time of a user and meet requirements of more users.
Description
Technical field
The present invention relates to media file format switch technology field, relate in particular in audio files format conversion method and system thereof.
Background technology
Along with Development of Multimedia Technology, countless media file format and coding and decoding mode have been emerged.Simultaneously, mobile device, also along with the raising of electronic technology, fast development, and media file had support in various degree.
The diversity of media file format and coding and decoding mode, and the limitation of mobile device playing video file cause the generation and the growth of video switching software.In order to make the user obtain suitable media file, the method that present video switching software adopts has following several kinds: the first, and sub-category generation configuration is single.The second, the user-defined format of all developing.But all there is drawback in various degree in this dual mode: first kind of mode, owing to adopt sub-categoryly, custom configuration is single, causes it can only satisfy equipment component, also has the single and restricted of support equipment media file simultaneously.The second way has adopted self-defined mode, can satisfy various demands in theory; But because present user is to the restriction of media file format degree of understanding; And to own equipment performance, especially not enough to the understanding of media file support property, the user can't be followed.Analyze dual mode,, also can't finely satisfy user's demand even find that dual mode share.
Summary of the invention
(1) goal of the invention
The purpose of this invention is to provide a kind of file layout change-over method and system, solve the problems referred to above.
(2) summary of the invention
A kind of media file format conversion method, this method converts the media file of form to be converted to media file that subscriber equipment is supported form, it is characterized in that said method comprises step:
S1: obtain the media information of the media file that subscriber equipment supports according to the subscriber equipment model, said media information comprises: file format, video code model, audio coding form, video resolution, video code rate, video frame rate, audio code rate, audio sample rate and audio track number;
S2: according to the media information that obtains, from the media coding database, select the encoder that can encode to the media file of said subscriber equipment support, said media coding database storage the encoder that is used for video coding and audio coding;
S3: the encoder of selecting with S2 is encoded to said file to be converted and is generated the media file that described subscriber equipment is supported.
Wherein, This method utilizes media file that a subscriber equipment model database storage subscriber equipment model, this subscriber equipment model support to play configuration, the media information under the most compatible configuration and the most clear configuration in the best; Wherein said best the broadcast is configured to the media information parameter configuration that player adapts to most; The most compatible said the broadcast is configured to player configurations is required minimum media information parameter configuration; The most clear said being configured to requires the highest media information parameter configuration to player configurations, before the said step S1, also comprises:
Subscriber equipment is connected to computer and discerns the model of subscriber equipment;
Wherein, in the time can't discerning the model of subscriber equipment,
Resolve the media information of the sample media file that this subscriber equipment can play;
The media information of the media file of this unit type and this unit type being supported according to the subscriber equipment model of user input adds subscriber equipment model database to.
Wherein, in the time can't discerning the subscriber equipment model,
The media information of the media file that search subscriber unit type and this subscriber equipment model are supported from the webserver, this webserver stores the mapping table of the media information of the media file that subscriber equipment model and this subscriber equipment model supported;
The media information of the media file that subscriber equipment model and this subscriber equipment model are supported adds subscriber equipment model database to.
Wherein, comprise between said step S1 and the S2:
Media information is set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment.
A kind of media file format converting system is characterized in that, comprising:
The media information acquisition module is used for obtaining according to the subscriber equipment model media information of the media file that subscriber equipment supports;
Encoder is selected module, is used for according to the media information that obtains, and from the media coding database, selects the encoder that can encode to the media file of said subscriber equipment support;
Coding module, the encoder that is used for choosing with the selection coder module are encoded to said file to be converted and are generated the media file that described subscriber equipment is supported.
Wherein, this system also comprises:
The subscriber equipment identification module is used to discern the subscriber equipment that is connected to computer.
Wherein, the said media information module of obtaining comprises:
Sample media file parsing module; Be used to resolve the media information of the sample media file that subscriber equipment can play, and the media information of the media file of this unit type and this unit type being supported according to the subscriber equipment model of user's input adds subscriber equipment model database to.
Wherein, the said media information module of obtaining also comprises:
Media information web search module; The media information of the media file that is used for being supported from webserver search subscriber unit type and this subscriber equipment model, and the media information of the media file that subscriber equipment model and this subscriber equipment model are supported adds subscriber equipment model database to.
Wherein, this system also comprises:
Media information is provided with module, is used for media information and is set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment.
(3) beneficial effect
Media file format conversion method provided by the invention and system have solved because software support configuration is incomplete; Can't reach customer requirements; And the user can not the detail knowledge video information and can't dispose the problem of the output video form that oneself needs; Shorten user's setup time greatly, satisfied the demand of more users.
Description of drawings
Fig. 1 is the flow chart according to a certain execution mode of the present invention;
Fig. 2 is the flow chart according to another embodiment of the present invention.
Embodiment
Media file format conversion method and system that the present invention proposes, accompanying drawings is following.
This method utilizes media file that subscriber equipment model database storage storage subscriber equipment model, this subscriber equipment model support to play configuration, the media information under the most compatible configuration and the most clear configuration in the best.Wherein best the broadcast is configured to the media information parameter configuration that player adapts to most; The most compatible broadcast is configured to player configurations is required minimum media information parameter configuration; The most clear being configured to requires the highest media information parameter configuration to player configurations, also is that broadcasting pictures disposes the most clearly.
As shown in Figure 1; At first subscriber equipment is connected to computer, judges whether to discern subscriber equipment then, promptly search this subscriber equipment and relevant information and whether be present in the unit type database of family; If exist expression can discern this subscriber equipment, otherwise can not discern.In the time can discerning subscriber equipment; From subscriber equipment model database, obtain the media information of the media file of this subscriber equipment support; These media informations comprise: file format, video code model, audio coding form, video resolution, video code rate, video frame rate, audio code rate, audio sample rate and audio track number, i.e. step S1; Step S2 is according to the media information that obtains, from the media coding database, selects the encoder that can encode to the media file of said subscriber equipment support, and wherein the media coding database storage the encoder that is used for video coding and audio coding; The encoder that step S3 selects with S2 is encoded to said file to be converted and is generated the media file that described subscriber equipment is supported; Wherein can media information between S1 and the S2 be set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment, shown in frame of broken lines in Fig. 1 flow chart.
In the time can not discerning subscriber equipment; Can preferentially select for use following mode to accomplish the obtaining of media information of the media file of subscriber equipment support; Analyze the media information of certain sample media file; This media information comprises: file format, video code model, audio coding form, video resolution, video code rate, video frame rate, audio code rate, audio sample rate, audio track number; This sample file is the media file that subscriber equipment can be play, as: subscriber equipment manufacturer is stored in example media file in the equipment when equipment dispatches from the factory, or the media file that can play through the subscriber equipment that other approach find; The media information of the media file of then this subscriber equipment model and this unit type being supported adds subscriber equipment model database to.After obtaining media information through the sample media file; Just carry out according to step S2 and S3, wherein, owing to can't discern this subscriber equipment; The best that also can't know this player is play configuration, the most compatible configuration and the most clear configuration, thus in the figure step of frame of broken lines.
In the time can't discerning subscriber equipment; Also can adopt following mode to accomplish the obtaining of media information of the media file of subscriber equipment support, as shown in Figure 2, the media information of the media file that this subscriber equipment of search is supported from the webserver of the mapping table of the media information of storing the media file that subscriber equipment model and this subscriber equipment model supported; After obtaining media information; Just carry out according to step S2 and S3, wherein, owing to can't discern this subscriber equipment; The best that also can't know this player is play configuration, the most compatible configuration and the most clear configuration, thus in the figure step of frame of broken lines.
The media file format converting system that the present invention proposes comprises: the media information acquisition module is used for obtaining according to the subscriber equipment model media information of the media file that subscriber equipment supports; Encoder is selected module, is used for according to the media information that obtains, and from the media coding database, selects the encoder that can encode to the media file of said subscriber equipment support; Coding module, the encoder that is used for choosing with the selection coder module are encoded to said file to be converted and are generated the media file that described subscriber equipment is supported.Wherein, this system also comprises: the subscriber equipment identification module is used to discern the subscriber equipment that is connected to computer.Wherein, Said media information acquisition module comprises: sample media file parsing module; Be used to resolve the media information of the sample media file that subscriber equipment can play, and the media information of the media file of this unit type and this unit type being supported according to the subscriber equipment model of user's input adds subscriber equipment model database to.Wherein, Said media information acquisition module also comprises: media information web search module; The media information of the media file that is used for being supported from webserver search subscriber unit type and this subscriber equipment model, and the media information of the media file that subscriber equipment model and this subscriber equipment model are supported adds subscriber equipment model database to.Wherein, this system also comprises: media information is provided with module, is used for media information and is set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment.
Embodiment 1
This embodiment is example with NOKIAN9x, and the user is connected to computer with this model mobile phone, because this model mobile phone and media file information thereof is present in the subscriber equipment model database, so this mobile phone is identified.And then from subscriber equipment model database, obtain the media information of this mobile phone, the media information that acquiescence obtains when to be that this mobile phone is best play configuration: file format is that FileMP4, video code model are that MPEG4, audio coding form are that ACC, video resolution are 320 * 240, video code rate be 384kbps, video frame rate be 15fps, audio code rate be 24kbps, audio sample rate be 44100 and the audio track number be 2; Selecting video encoder and audio coder respectively according to video code model and audio coding form is MPEG4 encoder and ACC encoder; Media file to be converted is encoded according to the media information value of above setting with MPEG4 encoder and ACC encoder then and generate the media file that subscriber equipment is supported, i.e. FileMP4 formatted file.Wherein before selecting video encoder and audio coder; Can be set to the most compatible the configuration or the most clear configuration by media information; For example be set to when the most compatible configuration: file format is that File3GP, video code model are that H263, audio coding form are that AMR NB, video resolution are 352 * 288, video code rate be 384kbps, video frame rate be 15fps, audio code rate be 12kbps, audio sample rate be 8000 and the audio track number be 1; Video encoder and the audio coder that select this moment are respectively H263 encoder and AMR NB encoder, and the file of coding back generation is the File3GP formatted file at last.
Embodiment 2
This embodiment is example with PSP, and the user is connected to computer with this PSP, because this PSP and media file information thereof is not present in the subscriber equipment model database, so this PSP can't be identified, and the user does not understand file format and audio frequency and video knowledge yet.At this moment; Select a sample media file that PSP can play; Like a playable media file that has existed among the PSP, resolve this sample media file and obtain its media information: file format is that FileMP4, video code model are that MPEG4, audio coding form are that ACC, video resolution are 320 * 240, video code rate be 512kbps, video frame rate be 29.97fps, audio code rate be 64kbps, audio sample rate be 24000 and the audio track number be 2.And this PSP model and its media information stored in the subscriber equipment model database.Select MPEG4 video encoder and ACC audio coder to treat the convert media document No. then and generate the FileMP4 formatted file that this PSP can play.
This embodiment is example with PSP, and the user is connected to computer with this PSP, because this PSP and media file information thereof is not present in the subscriber equipment model database, so this PSP can't be identified, and the user does not understand file format and audio frequency and video knowledge yet.At this moment, can from the webserver, search for the media information of the media file that this PSP supported: file format is that FileMP4, video code model are that MPEG4, audio coding form are that ACC, video resolution are 320 * 240, video code rate be 512kbps, video frame rate be 29.97fps, audio code rate be 64kbps, audio sample rate be 24000 and the audio track number be 2.And this PSP model and its media information stored in the subscriber equipment model database.Select MPEG4 video encoder and ACC audio coder to treat the convert media document No. then and generate the FileMP4 formatted file that this PSP can play.
Above execution mode only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (6)
1. media file format conversion method, this method converts the media file of form to be converted to media file that subscriber equipment is supported form, it is characterized in that said method comprises step:
S1: obtain the media information of the media file that subscriber equipment supports according to the subscriber equipment model, said media information comprises: file format, video code model, audio coding form, video resolution, video code rate, video frame rate, audio code rate, audio sample rate and audio track number;
S2: according to the media information that obtains, from the media coding database, select the encoder that can encode to the media file of said subscriber equipment support, said media coding database storage the encoder that is used for video coding and audio coding;
S3: the encoder of selecting with S2 is encoded to said file to be converted and is generated the media file that described subscriber equipment is supported;
This method utilizes media file that a subscriber equipment model database storage subscriber equipment model and this subscriber equipment model support to play configuration, the media information under the most compatible configuration and the most clear configuration in the best; Wherein said best the broadcast is configured to the media information parameter configuration that player adapts to most; The most compatible said the broadcast is configured to player configurations is required minimum media information parameter configuration; The most clear said being configured to requires the highest media information parameter configuration to player configurations; Before the said step S1, also comprise:
Subscriber equipment is connected to computer and discerns the model of subscriber equipment;
In the time can't discerning the model of subscriber equipment,
Resolve the media information of the sample media file that this subscriber equipment can play;
The media information of the media file of this unit type and this unit type being supported according to the subscriber equipment model of user input adds subscriber equipment model database to.
2. media file format conversion method as claimed in claim 1 is characterized in that, in the time can't discerning the subscriber equipment model,
The media information of the media file that search subscriber unit type and this subscriber equipment model are supported from the webserver, this webserver stores the mapping table of the media information of the media file that subscriber equipment model and this subscriber equipment model supported;
The media information of the media file that subscriber equipment model and this subscriber equipment model are supported adds subscriber equipment model database to.
3. media file format conversion method as claimed in claim 1 is characterized in that, comprises between said step S1 and the S2:
Media information is set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment.
4. a media file format converting system is characterized in that, comprising:
The media information acquisition module is used for obtaining according to the subscriber equipment model media information of the media file that subscriber equipment supports;
Encoder is selected module, is used for according to the media information that obtains, and from the media coding database, selects the encoder that can encode to the media file of said subscriber equipment support;
Coding module, the encoder that is used for choosing with the selection coder module are encoded to said file to be converted and are generated the media file that described subscriber equipment is supported;
Also comprise:
The subscriber equipment identification module is used to discern the subscriber equipment that is connected to computer;
The said media information module of obtaining comprises:
Sample media file parsing module; Be used to resolve the media information of the sample media file that subscriber equipment can play, and the media information of the media file of this unit type and this unit type being supported according to the subscriber equipment model of user's input adds subscriber equipment model database to.
5. media file format converting system as claimed in claim 4 is characterized in that, the said media information module of obtaining also comprises:
Media information web search module; The media information of the media file that is used for being supported from webserver search subscriber unit type and this subscriber equipment model, and the media information of the media file that subscriber equipment model and this subscriber equipment model are supported adds subscriber equipment model database to.
6. media file format converting system as claimed in claim 4 is characterized in that, also comprises:
Media information is provided with module, is used for media information and is set to satisfy best configuration, the most compatible configuration and the media information of one of clear configuration play of subscriber equipment.
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| CN102226944B (en) * | 2011-05-25 | 2014-11-12 | 贵阳朗玛信息技术股份有限公司 | Audio mixing method and equipment thereof |
| CN102299921A (en) * | 2011-08-09 | 2011-12-28 | 深圳市万兴软件有限公司 | Conversion method of video file adapted to mobile terminal and system thereof |
| CN104104972A (en) * | 2013-04-10 | 2014-10-15 | 深圳市快播科技有限公司 | Multimedia playing method, apparatus and system |
| CN105450589B (en) * | 2014-07-31 | 2018-12-14 | 阿里巴巴集团控股有限公司 | Remote invocation method and system |
| WO2017054142A1 (en) * | 2015-09-29 | 2017-04-06 | 华为技术有限公司 | Video data acquisition method, apparatus and system, and computer readable storage medium |
| CN107783866A (en) * | 2016-08-26 | 2018-03-09 | 法乐第(北京)网络科技有限公司 | The method of testing and device of a kind of multimedia equipment |
| CN107481709B (en) * | 2017-08-11 | 2022-04-12 | 腾讯音乐娱乐（深圳）有限公司 | Audio data transmission method and device |
| CN110176256B (en) * | 2019-04-15 | 2022-06-14 | 平安科技（深圳）有限公司 | Recording file format conversion method and device, computer equipment and storage medium |
| CN113556552B (en) * | 2021-09-09 | 2022-07-08 | 深圳市万佳安物联科技股份有限公司 | Control method for cloud video compression |
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