CN102780728A - Media file transcoding and downloading method and client - Google Patents
Media file transcoding and downloading method and client Download PDFInfo
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- CN102780728A CN102780728A CN2011101242875A CN201110124287A CN102780728A CN 102780728 A CN102780728 A CN 102780728A CN 2011101242875 A CN2011101242875 A CN 2011101242875A CN 201110124287 A CN201110124287 A CN 201110124287A CN 102780728 A CN102780728 A CN 102780728A
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Abstract
The invention discloses a media file transcoding and downloading method which comprises the following steps of: obtaining a source file and a broadcast equipment model of a media file; obtaining transcoding parameters based on the broadcast equipment model; transcoding the source file based on the transcoding parameters to generate a target file; and extracting source file information and target file information, and uploading the target file, the source file information, the target file information and the broadcast equipment model to a server. By adopting the above method, users of different equipment models can transcode the same media file into different formats, and upload the transcoded media files to the server for other users to download, and users can directly download the target files based on the download addresses, thus skipping the transcoding step, and therefore, the transcoding operation of the media file is more convenient. In addition, the invention also discloses a media file transcoding and downloading client.
Description
[technical field]
The present invention relates to multimedia technology field, particularly about a kind of media file transcoding method for down loading and client.
[background technology]
The classification of digital product becomes more and more abundanter at present, and these digital products generally all provide the function of audio-visual broadcast.But a main problem of on handheld device, carrying out audio-visual broadcast existence is exactly that audio-visual form is had strict requirement; Only support the 3GP form such as some mobile phone; Some mobile phone is only supported the MP4 form again; To obtain relatively difficulty of audio-visual resource in addition on the handheld device, generally need import from PC.And the audio-visual form on the PC platform is of a great variety, such as rm, rmvb, mov, avi, wmv or the like, these audio/video files is directly copied on the handheld device often can't play.
Need in the conventional art to carry out format conversion to specific handheld device model; Format conversion generally takes longer; One hour film possibly need could accomplish about 20-40 minute; In addition the audio-visual resource on individual PC is also very limited, and more need the download from the Internet needs the long download stand-by period.Therefore the user will import to the online movie resource in the handheld device, needs the process through download and format transformation, and these two operations are all very consuming time, bring very big inconvenience to the user.
In addition; Also have some video display resource websites to satisfy the particular requirement of handheld device to audio-visual form through setting up special method of channel such as mobile phone prefecture, PSP prefecture; Higher operation cost converts the online movie resource to the form that is fit to particular handheld device but this method needs the website cost; And the kind of user's handheld device is numerous, is difficult to satisfy all users' demand, and several types of less forms often can only be provided.Therefore all very inconvenience of the transcoding operation of media file in the conventional art.
[summary of the invention]
Based on this, be necessary to provide a kind of media file transcoding method for down loading that can make the transcoding more convenient operation.
A kind of media file transcoding method for down loading may further comprise the steps: source file and the playback equipment model of obtaining media file; Obtain the transcoding parameter according to said playback equipment model; According to said transcoding parameter said source file is carried out transcoding, generate file destination; Extraction source fileinfo and file destination information upload onto the server said file destination, said source file information, said file destination information and said playback equipment model.
Preferably, also comprise after the step of said source file that obtains media file and playback equipment model: obtain source file information,, return the file destination download address according to said source file information and said playback equipment model query aim file in server; Download said file destination according to said file destination download address.
Preferably; Said according to said source file information and said playback equipment model query aim file in server; The step of returning said file destination download address also comprises afterwards: judge whether said file destination download address exists; If then download said file destination according to said file destination download address; If do not exist, then get into the said step of obtaining the transcoding parameter according to said playback equipment model.
Preferably, the step that before the step of said source file that obtains media file and playback equipment model, also comprises the corresponding relation that playback equipment model and transcoding parameter are set; The said step of obtaining the transcoding parameter according to said playback equipment model is: obtain the transcoding parameter corresponding with said playback equipment model according to said corresponding relation.
Preferably, also comprise before obtaining the step of transcoding parameter according to the playback equipment model said: the file print that receives user's input; Said file print is carried out data analysis, return the transcoding parameter of said file print; Adding said file print corresponding playback equipment model and transcoding parameter selects for the user.
Preferably, said method also comprises: source file information and the playback equipment model of obtaining user's input; According to user's request inquiry and said playback equipment model and the corresponding file destination of said source file information from said server, return the file destination download address; Download said file destination according to said file destination download address.
In addition, a kind of media file transcoding download system that can make the transcoding more convenient operation also is provided.
A kind of media file transcoding download client comprises: the information acquisition module is used to obtain the source file and the said playback equipment model of said media file; First enquiry module is used for obtaining the transcoding parameter according to said playback equipment model; The transcoding module is used for according to said transcoding parameter said source file being carried out transcoding, generates file destination; Sharing module is used for extraction source fileinfo and file destination information, and said file destination, said source file information, said file destination information and said playback equipment model are uploaded onto the server.
Preferably, this client also comprises: second enquiry module, be used to obtain source file information, and according to said source file information and said playback equipment model query aim file in server, return the file destination download address; Download module is used for downloading said file destination according to said file destination download address.
Preferably; This client also comprises judge module: be used to judge whether said file destination download address exists; If; Then notify said download module to download said file destination according to said file destination download address, otherwise, notify said first enquiry module to obtain the transcoding parameter according to said playback equipment model.
Preferably, this client also comprises: module is set, is used to be provided with the corresponding relation of playback equipment model and transcoding parameter; First enquiry module also is used for obtaining the transcoding parameter corresponding with said playback equipment model according to said corresponding relation.
Preferably; The said module that is provided with also is used to receive the file print that the user imports; Said file print is carried out data analysis, return the transcoding parameter of said file print, add said file print corresponding playback equipment model and transcoding parameter and select for the user.
Preferably, the information acquisition module also is used to obtain the source file information and the playback equipment model of user's input; This client also comprises: the query module, be used for inquiring about and said playback equipment signal and the corresponding file destination of said source file information from said server according to user's request, and return said file destination download address.
Above-mentioned media file transcoding method for down loading, client; The user of distinct device type is a different-format with same media file transcoding; And the media file behind the transcoding uploaded onto the server supply other users to select to download, other users when same media file is carried out transcoding, system can be automatically to the server search whether had the file destination behind the transcoding; Then directly return the download address of file destination in this way; The user can directly download this file destination according to this download address, thereby skips the transcoding step, therefore feasible transcoding more convenient operation to media file.
[description of drawings]
Fig. 1 is the flow chart of media file transcoding method for down loading among the embodiment;
Fig. 2 is the flow chart of media file transcoding method for down loading among another embodiment;
Fig. 3 is the method flow diagram of ferret out file among the embodiment;
Fig. 4 is the structural representation of media file transcoding download client among the embodiment;
Fig. 5 is the structural representation of media file transcoding download client among another embodiment;
Fig. 6 is the structural representation of media file transcoding download client among another embodiment.
[embodiment]
In one embodiment, as shown in Figure 1, a kind of media file transcoding method for down loading may further comprise the steps:
Step S102 obtains the source file and the playback equipment model of media file.
Source file is for carrying out the media file of transcoding.The playback equipment model is used for the model of the equipment (like mobile phone, PSP, MP4, IPad etc.) of playing media file for the user.
In one embodiment, an inputting interface is provided, the user can add the path of the source file of media file through this inputting interface, selects playback equipment and model thereof through drop-down list.
Step S104 obtains the transcoding parameter according to the playback equipment model.
The corresponding relation of playback equipment model and transcoding parameter can be set in one embodiment.The transcoding parameter comprises the file type, video resolution, video frame rate, video coding type, audio coding type, video code rate, audio code rate of transcoding output etc.With a mobile phone is example, and file type is MP4, video resolution 640x360, video frame rate 15fps, video coding type MPEG4, audio coding type AAC, video code rate 768kbps, audio code rate 64kbps.Among this embodiment, obtain the playback equipment model, obtain the transcoding parameter corresponding with this playback equipment model according to the corresponding relation that is provided with.
In another embodiment, when not having the required playback equipment model of user in the drop-down tabulation, obtain the file print of user's input; The file print is carried out data analysis, the transcoding parameter of backspace file print.In a preferred embodiment, also can playback equipment model and transcoding parameter that the file print that return is corresponding add in the drop-down list.
When not having the required playback equipment model of user in the drop-down tabulation; Can point out the user to import the file print that on its playback equipment, to play; And this document print carried out the transcoding parameter of backspace file print after the data analysis; Can obtain the corresponding transcoding parameter of this playback equipment model, prevent not store the required playback equipment model of user, further satisfy the broadcast request of the multiple model playback equipment of user.
Step S106 carries out transcoding according to the transcoding parameter to source file, generates file destination.
File destination is meant the media file that is used on playback equipment, playing.In one embodiment, the detailed process of step S106 is: source file is carried out audio/video flow separate, isolate independent audio data stream and video data stream, carry out audio/video decoding then, decode and can supply the unpressed audio and video data streams of encoding.To unpressed audio, video data stream encryption, generate the audio frequency and video packed data according to the respective coding parameter.At last the audio frequency and video packed data stream that generates is merged into new media file, promptly is used for the file destination that playback equipment is play.
Step S108, extraction source fileinfo and file destination information upload onto the server file destination, source file information, file destination information and playback equipment model.
Among this embodiment, source file information comprises filename, cryptographic hash, format information, size of source file etc.File destination information comprises filename, cryptographic hash, format information and the size etc. of file destination.After transcoding was accomplished, the file that can point out the user whether transcoding to be accomplished was shared with other users, and the user then uploads onto the server file destination, source file information, file destination information and playback equipment model after confirming.Source file information, file destination information and playback equipment model can be deposited in the shared data bank of server, for other user inquirings and download.
Among this embodiment, fields such as the filename of record source file, source file cryptographic hash, playback equipment model, file destination cryptographic hash, file destination download address in the shared data bank of server.Wherein the file destination download address generates according to the actual storage address of the file of server.
Because the file destination that generates behind the transcoding is uploaded onto the server; Share through the file destination of server after transcoding; Like this; Any user can find through server and be fit to the media file that playback equipment is play, and the user can find media file on server then do not need again source file to be carried out transcoding, thereby make the transcoding more convenient operation.
In another embodiment, as shown in Figure 2, a kind of media file transcoding method for down loading may further comprise the steps:
Step S202 obtains the source file and the playback equipment model of media file.
As stated, the needs that the user adds through inputting interface carry out the path of the media file of transcoding, can get access to the source file of media file according to this path.In addition, the user can also select the playback equipment model through inputting interface.
Step S204 obtains source file information.
Source file information comprises filename, cryptographic hash, format information and the size etc. of source file.
In a preferred embodiment, get access to the source file of media file after, the cryptographic hash of calculation sources file.
Step S206 according to source file information and playback equipment model query aim file in server, returns the file destination download address.
In a preferred embodiment, in the shared data bank of server, search corresponding file destination, obtain the file destination download address, the file destination download address is returned to the user according to the cryptographic hash of source file or filename, playback equipment model.
Step S208 judges whether the file destination download address exists, if then get into step S210, otherwise get into step S212.
Step S210 is according to file destination download address downloading object file.
Among this embodiment, when the file destination download address exists, be illustrated in and find the file destination that is fit to the playback equipment broadcast in the server, then do not need again source file to be carried out transcoding.The file destination download address can return to the user, and the user manually downloads according to this file destination download address, also can file destination be returned to the user according to the direct downloading object file of this file destination download address.
Step S212 obtains the transcoding parameter according to the playback equipment model.
Among this embodiment, when the file destination download address does not exist, then need carry out transcoding to source file.The user can select the playback equipment model through the drop-down list of inputting interface; This playback equipment model can be the model of the playback equipment that using of user, also can be the model of other playback equipments of selecting need be fit to media file that other playback equipments play the time of user.
Get access to the transcoding parameter according to the playback equipment model of prior setting and the corresponding relation of transcoding parameter, this transcoding parameter comprises file type, video resolution, video frame rate, video coding type, audio coding type, video code rate, audio code rate etc.
Step S214 carries out transcoding according to the transcoding parameter to source file, generates file destination.
Among this embodiment, at first source file is carried out audio/video flow and separate, isolate independent audio data stream and video data stream, carry out audio/video decoding then, decode and to supply the unpressed audio and video data streams of encoding.Unpressed audio and video data streams is encoded according to corresponding transcoding parameter, generate the audio frequency and video packed data.At last the audio frequency and video packed data stream that generates is merged and be used for the file destination that playback equipment is play.
Step S216, extraction source fileinfo and file destination information upload onto the server said file destination, said source file information, said file destination information and said playback equipment model.
After file destination is uploaded onto the server; Actual storage address according to file destination can generate the file destination download address, has then write down the field such as filename, source file cryptographic hash, playback equipment model, file destination cryptographic hash, file destination download address of source file in the shared data bank in server.
When the user searches the file destination less than needs on server; Then the source file that needs transcoding is carried out transcoding; And the file destination that transcoding generates uploaded onto the server share, thereby making that the file destination of sharing is more and more abundanter, the user can be from the file destination of server downloads needs; Therefore need the number of times of transcoding fewer and feweri, for the transcoding of media file provides great facility.
In one embodiment, as shown in Figure 3, the function that above-mentioned media file transcoding method for down loading also provides search to be fit to the media file of various playback equipments broadcasts, the concrete realization as follows:
Step S302 obtains the source file information and the playback equipment model of user's input.
Among this embodiment, a search interface can be provided,,, and specify the playback equipment model like the source file title through this user's incoming source document information.
Step S304 according to user's request inquiry and playback equipment model and the corresponding file destination of source file information from server, returns the file destination download address.
Among this embodiment, user's incoming source document information and specify the playback equipment model after, can send searching request to server through clicking the search button that search interface provides.
Step S306 is according to file destination download address downloading object file.
Among this embodiment; Server arrives and playback equipment model and the corresponding file destination of source file information according to user's requesting query; Obtain the file destination download address, the file destination download address is returned to the user, the user can be according to the manual downloading object file of file destination download address.In addition, also can file destination be returned to the user according to the direct downloading object file of file destination download address.
Through above-mentioned function of search; The user can go server search to be fit to the media file that any playback equipment model is play, and like this, the user need be on playback equipment during playing media file; The media file that can go earlier server search whether to have suitable playback equipment to play; If search, then do not need again source file to be carried out the transcoding operation, for the user provides convenience.
In one embodiment, as shown in Figure 4, a kind of media file transcoding download client comprises information acquisition module 102, first enquiry module 104, transcoding module 106 and sharing module 108, wherein:
Source file is for carrying out the media file of transcoding.The playback equipment model is used for the model of the equipment (like mobile phone, PSP, MP4, IPad etc.) of playing media file for the user.
In one embodiment, information acquisition module 102 provides an inputting interface, and the user can add the path of the source file of media file through this inputting interface, and selects playback equipment and model thereof through drop-down list.
In one embodiment, client also comprises the module (not shown) is set, and the corresponding relation that module is used to be provided with playback equipment model and transcoding parameter is set.The transcoding parameter comprises the file type, video resolution, video frame rate, video coding type, audio coding type, video code rate, audio code rate of transcoding output etc.With a mobile phone is example, and file type is MP4, video resolution 640x360, video frame rate 15fps, video coding type MPEG4, audio coding type AAC, video code rate 768kbps, audio code rate 64kbps.Among this embodiment, first enquiry module 104 is used to obtain the playback equipment model, obtains the transcoding parameter corresponding with this playback equipment model according to the corresponding relation that is provided with.
In another embodiment; The file print that module also is used to receive user's input is set; Client also comprises analysis module; This document print is carried out data analysis, return the transcoding parameter of this document print, add this document print corresponding playback equipment model and transcoding parameter and select for the user.
When not having the required playback equipment model of user in the drop-down tabulation; Can point out the user to import the file print that on its playback equipment, to play; And this document print carried out the transcoding parameter of backspace file print after the data analysis; Can obtain the corresponding transcoding parameter of this playback equipment model, prevent not store the required playback equipment model of user, further satisfy the broadcast request of the multiple model playback equipment of user.
File destination is meant the media file that is used on playback equipment, playing.In one embodiment; Transcoding module 106 comprises audio/video flow separation module, audio/video decoding module, audio/video coding module and audio/video flow synthesis module (not shown); Wherein, Audio frequency and video separated flow module is used for that source file is carried out audio/video flow and separates, and isolates independent audio data stream and video data stream; The audio/video decoding module is used for respectively audio data stream and video data stream being decoded, and decodes to supply the unpressed audio and video data streams of encoding; The audio/video coding module is encoded to unpressed audio/video flow according to the respective coding parameter, generates the audio frequency and video packed data; The audio/video flow synthesis module is used for the audio frequency and video packed data stream that generates is merged into new media file, promptly is used for the file destination that playback equipment is play.
Among this embodiment, source file information comprises filename, cryptographic hash, format information, size of source file etc.File destination information comprises filename, cryptographic hash, format information and the size etc. of file destination.After transcoding was accomplished, the file that can point out the user whether transcoding to be accomplished was shared with other users, and the user then uploads onto the server file destination, source file information, file destination information and playback equipment model after confirming.Source file information, file destination information and playback equipment model can be deposited in the shared data bank of server, for other user inquirings and download.
Fields such as the filename of record source file, source file cryptographic hash, playback equipment model, file destination cryptographic hash, file destination download address in the shared data bank of server.Wherein the file destination download address generates according to the actual storage address of the file of server.
In another embodiment; As shown in Figure 5; This client also comprises second enquiry module 110, judge module 112, download module 114, wherein except that comprising above-mentioned information acquisition module 102, first enquiry module 104, transcoding module 106 and sharing module 108:
Among this embodiment, when the file destination download address exists, be illustrated in and find the file destination that is fit to the playback equipment broadcast in the server, then do not need again source file to be carried out transcoding, get final product according to file destination download address downloading object file.When the file destination download address does not exist, then need carry out transcoding to source file.
Among this embodiment; Before source file is carried out transcoding; Can go earlier whois lookup whether the file destination corresponding with source file information and playback equipment model (promptly being fit to the media file that playback equipment is play) is arranged, if having, then directly downloading object file gets final product; Saved the step of transcoding, provided convenience for the user carries out the transcoding operation.In addition, when there is not this file destination in server, then carry out transcoding, and the file destination that generates behind the transcoding uploaded onto the server share.Like this; Make that the file destination of sharing on the server is more and more abundanter, other users then can pass through the server downloading object file when same source file is carried out transcoding, do not need to carry out transcoding again; Therefore the transcoding number of operations is fewer and feweri, for the user provides great facility.
In another embodiment; Above-mentioned media file transcoding download client also provides search to be fit to the function of the file destination of playback equipment broadcast; As shown in Figure 6; Media file transcoding download client also comprises query module 116 except comprising above-mentioned information acquisition module 102, first enquiry module 104, transcoding module 106, sharing module 108, second enquiry module 110, judge module 112, download module 114, wherein:
Among this embodiment, information acquisition module 102 also is used to obtain the playback equipment model and the source file information of user's input.
Among this embodiment, information acquisition module 102 provides a search interface, through this user's incoming source document information, like the source file title, and specifies the playback equipment model.
Among this embodiment, user's incoming source document information and specify the playback equipment model after, can send searching request to server through clicking the search button that search interface provides.Download module 114 is used for according to file destination download address downloading object file.
Through above-mentioned function of search; The user can go server search to be fit to the media file that any playback equipment model is play, and like this, the user need be on playback equipment during playing media file; The media file that can go earlier server search whether to have suitable playback equipment to play; If search, then do not need again source file to be carried out the transcoding operation, for the user provides convenience.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (12)
1. media file transcoding method for down loading may further comprise the steps:
Obtain the source file and the playback equipment model of media file;
Obtain the transcoding parameter according to said playback equipment model;
According to said transcoding parameter said source file is carried out transcoding, generate file destination;
Extraction source fileinfo and file destination information upload onto the server said file destination, said source file information, said file destination information and said playback equipment model.
2. media file transcoding method for down loading according to claim 1 is characterized in that, also comprises after the step of said source file that obtains media file and playback equipment model:
Obtain source file information,, return the file destination download address according to said source file information and said playback equipment model query aim file in server;
Download said file destination according to said file destination download address.
3. media file transcoding method for down loading according to claim 2; It is characterized in that; According to said source file information and said playback equipment model query aim file in server, the step of returning said file destination download address also comprises afterwards said:
Judge whether said file destination download address exists, if then download said file destination according to said file destination download address; If do not exist, then get into the said step of obtaining the transcoding parameter according to said playback equipment model.
4. media file transcoding method for down loading according to claim 1 is characterized in that, before the step of said source file that obtains media file and playback equipment model, also comprises the step of the corresponding relation that playback equipment model and transcoding parameter are set;
The said step of obtaining the transcoding parameter according to said playback equipment model is:
Obtain the transcoding parameter corresponding according to said corresponding relation with said playback equipment model.
5. media file transcoding method for down loading according to claim 1 is characterized in that, also comprises before obtaining the step of transcoding parameter according to the playback equipment model said:
Receive the file print of user's input;
Said file print is carried out data analysis, return the transcoding parameter of said file print;
Adding said file print corresponding playback equipment model and transcoding parameter selects for the user.
6. media file transcoding method for down loading according to claim 1 is characterized in that said method also comprises:
Obtain the source file information and the playback equipment model of user's input;
According to user's request inquiry and said playback equipment model and the corresponding file destination of said source file information from said server, return the file destination download address;
Download said file destination according to said file destination download address.
7. media file transcoding download client is characterized in that said client comprises:
The information acquisition module is used to obtain the source file and the said playback equipment model of said media file;
First enquiry module is used for obtaining the transcoding parameter according to said playback equipment model;
The transcoding module is used for according to said transcoding parameter said source file being carried out transcoding, generates file destination;
Sharing module is used for extraction source fileinfo and file destination information, and said file destination, said source file information, said file destination information and said playback equipment model are uploaded onto the server.
8. media file transcoding download client according to claim 7 is characterized in that said client also comprises;
Second enquiry module is used to obtain source file information, according to said source file information and said playback equipment model query aim file in server, returns the file destination download address;
Download module is used for downloading said file destination according to said file destination download address.
9. media file transcoding download client according to claim 8; It is characterized in that; Said client also comprises judge module: be used to judge whether said file destination download address exists, if then notify said download module to download said file destination according to said file destination download address; Otherwise, notify said first enquiry module to obtain the transcoding parameter according to said playback equipment model.
10. media file transcoding download client according to claim 7 is characterized in that said client also comprises:
Module is set, is used to be provided with the corresponding relation of playback equipment model and transcoding parameter;
Said first enquiry module also is used for obtaining the transcoding parameter corresponding with said playback equipment model according to said corresponding relation.
11. media file transcoding download client according to claim 7; It is characterized in that; The said module that is provided with also is used to receive the file print that the user imports; Said file print is carried out data analysis, return the transcoding parameter of said file print, add said file print corresponding playback equipment model and transcoding parameter and select for the user.
12. media file transcoding download client according to claim 7 is characterized in that, said information acquisition module also is used to obtain the source file information and the playback equipment model of user's input;
Said client also comprises:
The query module is used for inquiring about and said playback equipment signal and the corresponding file destination of said source file information from said server according to user's request, returns said file destination download address.
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| CN105262797A (en) * | 2015-09-17 | 2016-01-20 | 北京金山安全软件有限公司 | Music file loading method and related equipment |
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| WO2018192236A1 (en) * | 2017-04-20 | 2018-10-25 | 腾讯科技（深圳）有限公司 | Data file code reduction processing method, and server |
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