CN103024509B - Method and device for displaying multimedia file information on television - Google Patents
Method and device for displaying multimedia file information on television Download PDFInfo
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Abstract
The invention discloses a method and a device for displaying multimedia file information on a television. The method includes the following steps: judging whether an external storage device contains a multimedia file after detecting a request for accessing the external storage device; analyzing the multimedia file on yes judgment to obtain the multimedia file information; and comparing the multimedia file and the corresponding television information standard and displaying the comparing result. When the external storage device is accessed through the television, the multimedia file contained in the external storage device is firstly analyzed to determine whether the multimedia file is supported by the television, accordingly a user side can selectively opens the multimedia file according to the analyzing result, user experience is improved, and load on the television caused by decoding of the multimedia file not supported by the television during accessing is reduced.
Description
Technical field
The present invention relates to TV technology, more particularly, to TV show the method and device of multimedia document information.
Background technology
The form of multimedia file is more and more abundanter at present, and diversified formatted file mutually coexists and develops.Currently
Most tv product also all possesses usb interface and plays multimedia function, provides the user easily audio-visual experience.
But tv product is because of the restriction etc. of the restriction of chip or patent, the file of some forms cannot decode or can not play.
User often have selected file, is just pointed out: this document video after waiting a series of actions such as TV master chip decoding
Do not support, or this document audio frequency is not supported etc..If with the presence of this situation of multiple files in usb storage device, not only consuming
The viewing enthusiasm of user, also to the broadcasting of user to select to bring some inconvenience.
For the problems referred to above, the way of current TV software has following several:
(1) directly judge Document encapsulation (i.e. the suffix name of file): for example, TV can not support suffix entitled " .divx "
Multimedia file, TV software directly filters out the multimedia file of all suffix entitled " .divx ".But a multimedia
Whether file can be televised, and not merely depends on Document encapsulation, also depends on video codec(coding and decoding video
Device) and audio codec(audio codec).Still can there is a part and encapsulate in this way, the encapsulation of such as .avi, by
Exceed the scope of video codec in it, therefore only still can not be fully solved the problems referred to above by judging Document encapsulation.
(2) video preview: TV software carries out the parsing of video, after the completion of sectional drawing replace original file icon, this
Operation (all can place a lot of files, such as popular at present film first in the state of a lot of files in the u disk of general user
Etc.), if each file will complete to parse one by one, and obtain sectional drawing, speed is slow and occupies substantial amounts of system resource.With
Family, if it is desired to seeing whether the multimedia file oneself wanting to watch can be play, must be waited for a long time, because will analyze one by one, such as
Fruit user wants that the file watched is in the rear end of queue, and the time of wait is oversize.And video codec TV can only be judged
Whether can support, and whether the audio codec TV of multimedia file can be supported, the method still can not judge.
Content of the invention
The main object of the present invention is that a kind of method providing TV to show multimedia document information is visited it is intended to reduce user
Ask the burden brought during the multimedia file do not supported to the decoding of TV.
The invention provides a kind of method that TV shows multimedia document information, comprise the following steps:
After the request of access External memory equipment is detected, judge to whether there is multimedia file in External memory equipment；
It is that described multimedia file is analyzed, obtain the information of multimedia file；
Corresponding with TV for this multimedia file information standard is compared, and shows comparative result.
Preferably, described described multimedia file is analyzed, obtain multimedia file information include:
Encapsulation to described multimedia file is analyzed, and obtains the data of the multimedia file of encapsulation that TV is supported
Stream；
Described data flow is analyzed, obtains the orbit information in data flow.
Preferably, described orbit information includes: audio/video coding type, audio frequency and video format information, sample rate, channel number,
Language, resolution.
Preferably, described corresponding with TV for this multimedia file information standard is compared, and show that comparative result includes:
Obtain the corresponding information standard of TV；
Corresponding with TV for described orbit information information standard is mated, if the match is successful, display is supported；If
Join unsuccessful, show and do not support.
Preferably, the display of described comparative result includes:
Comparative result is shown by word or character mark.
Present invention also offers a kind of TV shows the device of multimedia document information, comprising:
File detection module, for detect access External memory equipment request after, judge in External memory equipment be
No have multimedia file；
File analyzing module, is used for detecting when there is multimedia file in External memory equipment, to described multimedia literary composition
Part is analyzed, and obtains the information of multimedia file；
Fileinfo display module, for comparing corresponding with TV for this multimedia file information standard, and shows ratio
Relatively result.
Preferably, described file analyzing module is used for:
Encapsulation to described multimedia file is analyzed, and obtains the data of the multimedia file of encapsulation that TV is supported
Stream；
Described data flow is analyzed, obtains the orbit information in data flow.
Preferably, described orbit information includes: audio/video coding type, audio frequency and video format information, sample rate, channel number,
Language, resolution.
Preferably, described fileinfo display module is used for:
Obtain the corresponding information standard of TV；
Corresponding with TV for described orbit information information standard is mated, if the match is successful, display is supported；If
Join unsuccessful, show and do not support.
Preferably, described fileinfo display module is used for: shows comparative result by word or character mark.
The present invention passes through, in television access External memory equipment, first the multimedia file in External memory equipment to be carried out
Analysis, to determine if to be supported by TV, so that user side can be selectively opened according to this analysis result, not only carries
The high experience of user, and the burden also reducing decoding when accessing the multimedia file do not supported and bringing to TV.
Brief description
Fig. 1 is the schematic flow sheet of the method preferred embodiment that TV of the present invention shows multimedia document information；
Fig. 2 is that TV of the present invention shows that the flow process carrying out multimedia file analysis in the method for multimedia document information is illustrated
Figure；
Fig. 3 is the data-flow analysis figure of the multimedia file of method that TV of the present invention shows multimedia document information；
Fig. 4 is the flow process signal that TV of the present invention shows that in the method for multimedia document information, multimedia document information show
Figure；
Fig. 5 is the display schematic diagram that TV of the present invention shows multimedia document information in the method for multimedia document information；
Fig. 6 is the structural representation of the device preferred embodiment that TV of the present invention shows multimedia document information.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Further illustrate technical scheme below in conjunction with Figure of description and specific embodiment.It should be appreciated that this
The described specific embodiment in place, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of method one embodiment that TV of the present invention shows multimedia document information.
The TV of this embodiment shows that the method for multimedia document information comprises the following steps:
Step s110, the request accessing External memory equipment is detected after, judge in External memory equipment with the presence or absence of many
Media file；It is to proceed to step s120；Otherwise terminate flow process；
Step s120, described multimedia file is analyzed, obtains the information of multimedia file；
Step s130, corresponding with TV for this multimedia file information standard is compared, and show comparative result.
When user side is when watching TV, insertion television interface can be accessed by the instruction of remote signal or television key
External memory equipment, and watch and be stored in multimedia file on External memory equipment.When receiving television access external storage
After the request of equipment, first have to judge to whether there is multimedia file in External memory equipment, be that multimedia file is carried out
Analysis, obtains the information of multimedia file, form of such as multimedia file etc..Then further according to this multimedia information and electricity
Depending on corresponding information standard, judge whether TV supports the broadcasting of this multimedia file, and show judged result.
The embodiment of the present invention is passed through in television access External memory equipment, first to the multimedia literary composition in External memory equipment
Part is analyzed, to determine if to be supported by TV, so that user side can be selectively opened according to this analysis result,
Not only increase the experience of user, and also reduce decoding when accessing the multimedia file do not supported and bring to TV
Burden.
With reference to Fig. 2, above-mentioned steps s120 include:
Step s121, the encapsulation to described multimedia file are analyzed, and obtain the multimedia literary composition of the encapsulation that TV is supported
The data flow of part；
Step s122, described data flow is analyzed, obtains the orbit information in data flow.
Encapsulation to described multimedia file is analyzed, that is, obtain the suffix name of multimedia file, and judge this many matchmaker
The suffix name whether suffix name of body file is supported by TV, if not supporting, is filtered.When all of multimedia file
All judge terminate after, acquisition be all the encapsulation that TV is supported multimedia file, such as mpeg, mp4, mkv etc..Then obtain
Take the data flow of the multimedia file of encapsulation that this TV supported, and it is analyzed, to obtain the track in data flow
Information.Described orbit information includes: audio/video coding type, audio frequency and video format information, sample rate, channel number, language, resolution
Rate.The analysis of the orbit information of this data flow can be processed accordingly according to the agreement of multimedia encapsulation.Below will be with
Analyzing and obtaining its audio/video coding type to this data flow as a example the multimedia file that suffix entitled " .mkv " encapsulates.
Mkv(matroska video) it is a kind of new multimedia encapsulation format, it can be by the video of multiple different codings
And the audio frequency of more than 16 different-formats and the caption stream of different language are encapsulated in a matroska multimedia file.
What matroska file format protocol was detailed introduces the form of mkv file.Tunneling matroska tray according to mkv
Formula agreement, each component parsing to mkv form, the multimedia messages such as the audio frequency and video parameter of this data flow can be obtained.
Two elements defined in matroska file format protocol: tracktype id(rail type iden symbol) and
Codec id(codec identifier), this two elements exist in the flow of information of track, are made for describing multimedia file
Audio frequency and video form.
Specifically, the decoding of this two elements, according to matroska file format protocol, the data of mkv form adopts can
Become the integer storage of length, with save space, its data structure is made up of following three parts:
| id | size | data |
Obtain the size of primary data data, need to first know the value of size, provide as follows in agreement:
length = 1 + [number_of_leading_zero_bits]；
I.e. the digit of leading 0 in the length lengh=1+ data of the value of size, can be obtained by the length of this size value
Obtain the value of size.For example: if data and then is 3a41fe afterwards, first character section 3a is converted into binary digit to identifier (id)
0011 1010, count from left to right, have two leading 0, therefore its size length is: 1+2=3,1 after leading 0 is as leading 0 sequence
Row end mark, do not calculated, afterwards be exactly actual size value initial data, totally 3 bytes, i.e. size value=1a41fe,
After drawing size value, the content of data behind is char [size] (char [size]), and that is, 1a41fe(is converted into decimal scale
For 1720830) after 1720830 bytes be data content.
Matroska file format protocol specifies that the identifier of tracktype id is: 83, and data data behind
Content is the type of track: such as video, audio frequency, captions etc..For example, it is possible to be set to: the content of this data is class of track when 01
Type is video；When 02, classification of track is audio frequency；When 11, classification of track is captions.The identifier of codec id is: 86, behind
The title of codec that uses for track of data data content, and be character type.According to this data data content, can
To draw the format information of specific multimedia file.
Below, the process of the presentation of information of this multimedia file is entered taking multimedia file " new Drunken Concubine .mkv " as a example
Row specifically describes.With reference to Fig. 3, the tracktype data of this multimedia file is as follows: (see arrow s1 indication data)
83 81 01
83: for tracktype identifier, 8,1(1,000 0001), by above mentioned size value calculating formula of length:
The digit of leading 0 in length=1+ data；
Can show that length=1+0(81 does not have leading 0)=1, i.e. the data 01 of only one of which byte, therefore from this 1 knot
Data for size value 01(Fig. 3 shown by for the data after bundle symbol is binary data) it is known that data length is for after 01,
Read thereafter a byte as data content data: its content be 01.According to above-mentioned agreement, then can determine whether as track trajectory road
Type is video.
The codec data of this multimedia file is as follows: (see arrow s2 indication data)
86 8f 56 5f 4d 50 45………..
86: for codec identifier, 8,f(1,000 1111), by above mentioned size value calculating formula of length:
The digit of leading 0 in length=1+ data；
Can show that length=1+0(8f does not have leading 0)=1, i.e. the data 01 of only one of which byte, therefore from this 1 knot
Data after bundle symbol be size value 0f(15) (data shown by Fig. 3 be binary data) it is known that data length is 0f
(15) after, read thereafter 15 bytes as data content data: its content be 56 5f 4d 50 45 47 34 2f 49
53 4f 2f 41 56 43.
Matroska file format protocol, the title of the codec that this data uses for track, is character type.According to
International ascii code conversion specification, such as table 1.This data is converted into character, is: v_mpeg4/iso/avc(such as first
Individual data 56(hexadecimal), in following table it can be seen that corresponding character is v, other in the same manner).
Table 1
Therefore, by data-flow analysis: we can draw, this track is track of video, and video format is: v_mpeg4/
iso/avc.
In the same manner, we have a look this document corresponding audio information analysis example:
Tracktype data is as follows: (see arrow s3 indication data)
83 81 02
Classification of track 02, i.e. audio frequency.
Codec data is as follows:
86 85 41 5f 41 43 33
Its codec format is 41 5f 41 43 33, and according to ascii code transformation rule, it being converted into character is:
A_ac3(is shown in arrow s4 indication data)
Therefore, by data-flow analysis: we can draw, second track of this mtk is audio track, audio format
It is: a_ac3.Can be seen that by data-flow analysis, can efficiently learn very much audio frequency and video of this document etc. from being analyzed above
Form.
With reference to Fig. 4, above-mentioned steps s130 include:
Step s131, the acquisition corresponding information standard of TV；
Step s132, corresponding with TV for described orbit information information standard is mated, if the match is successful, shown
Support；If coupling is unsuccessful, shows and do not support.
Obtain the supported video format of this TV and audio format first, as shown in table 2:
Table 2
| The supported video format of TV | The supported audio format of TV |
| "v_mpeg4/iso/sp" | "a_mpeg/l1" |
| "v_mpeg4/iso/asp" | "a_mpeg/l2" |
| "v_mpeg4/iso/ap" | "a_mpeg/l3" |
| "v_mpeg4/iso/avc" | "a_pcm/int/big " |
| "v_mpeg4/ms/v2" | "a_pcm/int/lit " |
| "v_mpeg4/ms/v3" | "a_pcm/float/ieee " |
| "v_mpeg1" | "a_dts" |
| "v_mpeg2" | "a_aac" |
| "v_theora" |
Then, by the video format character accessed by step s120 and audio format character, corresponding to can by itself and TV
The video format supported and audio format compare, and if there are identical, then explanation is supported, otherwise for not supporting.Through character pair
Ratio finds a group in the video format " v_mpeg4/iso/avc " and table 2 of above-mentioned multimedia file " new Drunken Concubine .mkv "
Character is consistent, and the video format of therefore this multimedia file " new Drunken Concubine .mkv " is supported by TV；And above-mentioned multimedia literary composition
The audio format a_ac3 of part " new Drunken Concubine .mkv " is all different from arbitrary group of character in table 2, therefore this multimedia file
The audio format of " new Drunken Concubine .mkv " is not supported by TV.
After whole multimedia files is all analyzed and terminated, then show comparative result.As shown in figure 5, by all TV institutes
The multimedia file supporting encapsulation is shown, shows the video of each multimedia file, the comparative result of audio frequency simultaneously.Cause
This, according to this display, user can be understood which multimedia file is supported by TV, thus optionally selecting to play
Multimedia file.The display of this comparative result can show comparative result by word or character mark, and such as video is supported
Multimedia file is directly shown using the icon of video, and the multimedia file that audio frequency is supported directly is entered using the icon of audio frequency
The multimedia file that row display, video and audio frequency are not all supported directly is shown using the icon do not supported.
With reference to Fig. 6, Fig. 6 is device one embodiment that TV of the present invention shows multimedia document information.This TV shows many
The device of media file information includes:
File detection module 110, for detecting after the request accessing External memory equipment, judges in External memory equipment
With the presence or absence of multimedia file；
File analyzing module 120, is used for detecting when there is multimedia file in External memory equipment, to described multimedia
File is analyzed, and obtains the information of multimedia file；
Fileinfo display module 130, for comparing corresponding with TV for this multimedia file information standard, and shows
Comparative result.
When user side is when watching TV, insertion television interface can be accessed by the instruction of remote signal or television key
External memory equipment, and watch and be stored in multimedia file on External memory equipment.When receiving television access external storage
After the request of equipment, first pass through file detection module 110 and judge to whether there is multimedia file in External memory equipment, be then
File analyzing module 120 is analyzed to multimedia file, obtains the information of multimedia file, the form of such as multimedia file
Deng.Then fileinfo display module 130, further according to this multimedia information and the corresponding information standard of TV, judges that TV is
The no broadcasting supporting this multimedia file, and show judged result.
The embodiment of the present invention is passed through in television access External memory equipment, first to the multimedia literary composition in External memory equipment
Part is analyzed, to determine if to be supported by TV, so that user side can be selectively opened according to this analysis result,
Not only increase the experience of user, and also reduce decoding when accessing the multimedia file do not supported and bring to TV
Burden.
Above-mentioned file analyzing module 120 is used for:
Encapsulation to described multimedia file is analyzed, and obtains the data of the multimedia file of encapsulation that TV is supported
Stream；
Described data flow is analyzed, obtains the orbit information in data flow.
Encapsulation to described multimedia file is analyzed, that is, obtain the suffix name of multimedia file, and judge this many matchmaker
The suffix name whether suffix name of body file is supported by TV, if not supporting, is filtered.When all of multimedia literary composition
After part all judges to terminate, acquisition be all the encapsulation that TV is supported multimedia file.Then obtain what this TV was supported
The data flow of the multimedia file of encapsulation, and it is analyzed, to obtain the orbit information in data flow.Described orbit information
Including: audio/video coding type, sample rate, channel number, language, resolution.The analysis of the orbit information of this data flow can root
Processed accordingly according to the agreement of multimedia encapsulation, its specific processing procedure can refer to suffix in previous methods embodiment
The analysis process of the multimedia file that entitled " .mkv " encapsulates.
Above-mentioned fileinfo display module 130 is used for:
Obtain the corresponding information standard of TV；
Corresponding with TV for described orbit information information standard is mated, if the match is successful, display is supported；If
Join unsuccessful, show and do not support.
Obtain the supported video format of this TV and audio format first, as shown in table 2:
Table 2
| The supported video format of TV | The supported audio format of TV |
| "v_mpeg4/iso/sp" | "a_mpeg/l1" |
| "v_mpeg4/iso/asp" | "a_mpeg/l2" |
| "v_mpeg4/iso/ap" | "a_mpeg/l3" |
| "v_mpeg4/iso/avc" | "a_pcm/int/big " |
| "v_mpeg4/ms/v2" | "a_pcm/int/lit " |
| "v_mpeg4/ms/v3" | "a_pcm/float/ieee " |
| "v_mpeg1" | "a_dts" |
| "v_mpeg2" | "a_aac" |
| "v_theora" |
Then, by the video format character accessed by step s120 and audio format character, corresponding to can by itself and TV
The video format supported and audio format compare, and if there are identical, then explanation is supported, otherwise for not supporting.Through character pair
Ratio finds a group in the video format " v_mpeg4/iso/avc " and table 2 of above-mentioned multimedia file " new Drunken Concubine .mkv "
Character is consistent, and the video format of therefore this multimedia file " new Drunken Concubine .mkv " is supported by TV；And above-mentioned multimedia literary composition
The audio format a_ac3 of part " new Drunken Concubine .mkv " is all different from arbitrary group of character in table 2, therefore this multimedia file
The audio format of " new Drunken Concubine .mkv " is not supported by TV.
After whole multimedia files is all analyzed and terminated, then show comparative result.As shown in figure 5, by all TV institutes
The multimedia file supporting encapsulation is shown, shows the video of each multimedia file, the comparative result of audio frequency simultaneously.Cause
This, according to this display, user can be understood which multimedia file is supported by TV, thus optionally selecting to play
Multimedia file.The display of this comparative result can show comparative result by word or character mark, and such as video is supported
Multimedia file is directly shown using the icon of video, and the multimedia file that audio frequency is supported directly is entered using the icon of audio frequency
The multimedia file that row display, video and audio frequency are not all supported directly is shown using the icon do not supported.
The foregoing is only the preferred embodiments of the present invention, not thereby limit its scope of the claims, every utilization present invention
Equivalent structure or equivalent flow conversion that description and accompanying drawing content are made, are directly or indirectly used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (8)
1. a kind of TV shows the method for multimedia document information it is characterised in that comprising the following steps:
After the request of access External memory equipment is detected, judge to whether there is multimedia file in External memory equipment；
It is that described multimedia file is analyzed, obtain the information of multimedia file；The packet of described multimedia file
Include the orbit information of the data flow of multimedia file；
Corresponding with TV for this multimedia file information standard is compared, and shows comparative result；The corresponding information of described TV
Standard includes the supported video format of TV and audio format；
Described corresponding with TV for this multimedia file information standard is compared, and show that comparative result includes:
Obtain the corresponding information standard of TV；
Corresponding with TV for described orbit information information standard is mated, if the match is successful, display is supported；If coupling is not
Successful then show and do not support.
2. TV according to claim 1 show multimedia document information method it is characterised in that described to described many
Media file is analyzed, and the information obtaining multimedia file includes:
Encapsulation to described multimedia file is analyzed, and obtains the data flow of the multimedia file of encapsulation that TV is supported；
Described data flow is analyzed, obtains the orbit information in data flow.
3. TV according to claim 2 shows the method for multimedia document information it is characterised in that described orbit information
Including: audio/video coding type, audio frequency and video format information, sample rate, channel number, language, resolution.
4. TV according to claim 1 shows the method for multimedia document information it is characterised in that described comparative result
Display include:
Comparative result is shown by word or character mark.
5. a kind of TV shows the device of multimedia document information it is characterised in that including:
File detection module, for detecting after the request accessing External memory equipment, judges whether deposit in External memory equipment
In multimedia file；
File analyzing module, is used for detecting when there is multimedia file in External memory equipment, described multimedia file is entered
Row analysis, obtains the information of multimedia file；The information of described multimedia file includes the track of the data flow of multimedia file
Information；
Fileinfo display module, for comparing corresponding with TV for this multimedia file information standard, and shows and compares knot
Really；The corresponding information standard of described TV includes the supported video format of TV and audio format；
Described fileinfo display module specifically for: obtain the corresponding information standard of TV；By described orbit information with
The corresponding information standard of TV is mated, if the match is successful, display is supported；If coupling is unsuccessful, shows and do not support.
6. TV according to claim 5 shows the device of multimedia document information it is characterised in that described file analysis
Module is used for:
Encapsulation to described multimedia file is analyzed, and obtains the data flow of the multimedia file of encapsulation that TV is supported；
Described data flow is analyzed, obtains the orbit information in data flow.
7. TV according to claim 6 shows the device of multimedia document information it is characterised in that described orbit information
Including: audio/video coding type, audio frequency and video format information, sample rate, channel number, language, resolution.
8. TV according to claim 5 shows the device of multimedia document information it is characterised in that described fileinfo
Display module is used for: shows comparative result by word or character mark.
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| CN107277627A (en) * | 2017-06-14 | 2017-10-20 | 环球智达科技（北京）有限公司 | A kind of detecting system of video and audio ability to play |
| CN107135410A (en) * | 2017-06-14 | 2017-09-05 | 环球智达科技（北京）有限公司 | A kind of detection method of video and audio ability to play |
| CN107172467A (en) * | 2017-06-14 | 2017-09-15 | 环球智达科技（北京）有限公司 | A kind of video and audio playback equipment |
| CN107135409A (en) * | 2017-06-14 | 2017-09-05 | 环球智达科技（北京）有限公司 | A kind of detection method of video and audio ability to play |
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| CN101039408A (en) * | 2006-03-15 | 2007-09-19 | 腾讯科技（深圳）有限公司 | Method for controlling video format in video communication and system thereof |
| CN102346752A (en) * | 2010-08-06 | 2012-02-08 | 康佳集团股份有限公司 | Network television multimedia file error identification method and system |
| CN102695095A (en) * | 2012-05-28 | 2012-09-26 | 中山大学 | Set-top-box-based USB multimedia automatic playing method and USB detection method |
| CN102799630A (en) * | 2012-06-26 | 2012-11-28 | 深圳Tcl新技术有限公司 | Method and device for automatically identifying multimedia format and multimedia equipment |
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