CN101588391A - Method and apparatus for acquiring earliest playing time - Google Patents
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- CN101588391A CN101588391A CNA2009100889857A CN200910088985A CN101588391A CN 101588391 A CN101588391 A CN 101588391A CN A2009100889857 A CNA2009100889857 A CN A2009100889857A CN 200910088985 A CN200910088985 A CN 200910088985A CN 101588391 A CN101588391 A CN 101588391A
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Abstract
The invention relates to a method and apparatus for acquiring earliest playing time, wherein, the method executes the following steps: acquiring file size, coding rates of audio/video contents and transmitting rates of audio/video contents between a client terminal and a server terminal; acquiring the earliest playing time according to file sizes, the coding rates and the transmitting rates, the client terminal can prompt the earliest playing time to the user, so that the user can clearly know the time of non-interrupted playing audio/video contents during downloading.
Description
Technical field
The present invention relates to networking technology area, relate in particular to a kind of acquisition methods of reproduction time the earliest and device.
Background technology
The downloading and playing business is that client is downloaded audio-video frequency content to be played from server end, and the business of playing, and this business is divided into two kinds of situations: a kind of is that client is at first downloaded the full content of finishing audio frequency and video, plays then; In downloading process, downloading software can be to the user prompt download progress, and estimates to download the time of finishing, with for reference; What but in this case, the user need wait for is chronic.Another kind is that client is play while downloading, the user does not need to wait for like this, and is bigger but this mode is influenced by network download speed, if network download speed is less than the encoder bit rate of audio-video frequency content, then play and to interrupt, influence the Experience Degree that the user watches or listens to.
The inventor finds through the research prior art: when client has been downloaded a part of audio-video frequency content, if begin to play this audio-video frequency content this moment, be the whole audio-video frequency content that plays that not to have interruption, this time be called reproduction time the earliest herein.But prior art does not provide the method for reproduction time the earliest of how calculating.
Summary of the invention
The invention provides a kind of acquisition methods of reproduction time the earliest and device, can calculate reproduction time the earliest.
The invention provides a kind of acquisition methods of reproduction time the earliest, comprising:
Obtain the transfer rate of described audio-video frequency content between file size, encoder bit rate and the client and server end of audio-video frequency content;
According to described file size, encoder bit rate and transfer rate, obtain reproduction time the earliest.
The invention provides a kind of deriving means of reproduction time the earliest, comprising:
Parameter acquisition module is used to obtain the transfer rate of described audio-video frequency content between file size, encoder bit rate and the client and server end of audio-video frequency content;
Time-obtaining module is used for obtaining reproduction time the earliest according to described file size, encoder bit rate and transfer rate.
The present invention obtains reproduction time the earliest according to the transfer rate of audio-video frequency content between file size, encoder bit rate and the client and server end of the audio-video frequency content that obtains; Client can so that with this earliest reproduction time be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this.
Description of drawings
Fig. 1 is the present invention's flow chart of reproduction time acquisition methods embodiment one the earliest;
Fig. 2 is the present invention's flow chart of reproduction time acquisition methods embodiment two the earliest;
Fig. 3 is the present invention's flow chart of reproduction time acquisition methods embodiment three the earliest;
Fig. 4 is the present invention's flow chart of reproduction time acquisition methods embodiment four the earliest;
Fig. 5 is the present invention's flow chart of reproduction time acquisition methods embodiment five the earliest;
Fig. 6 is the present invention's structural representation of reproduction time deriving means one embodiment the earliest.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the present invention's flow chart of reproduction time acquisition methods embodiment one the earliest.As shown in Figure 1, present embodiment specifically comprises the steps:
The transfer rate of audio-video frequency content between step 100, the file size of obtaining audio-video frequency content, encoder bit rate and the client and server end;
Step 102, according to file size, encoder bit rate and transfer rate, obtain reproduction time the earliest.
Further, between step 100 and 102, can also comprise: step 101, judge that whether transfer rate is less than encoder bit rate; If then execution in step 102.
If judge transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
Present embodiment obtains reproduction time the earliest according to the transfer rate of audio-video frequency content between file size, encoder bit rate and the client and server end of the audio-video frequency content that obtains; Client can so that with this earliest reproduction time be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this.
Fig. 2 is the present invention's flow chart of reproduction time acquisition methods embodiment two the earliest.Present embodiment provides the method for reproduction time the earliest of obtaining when downloading beginning.Because the implementation of the method that provides of present embodiment needs the regular hour, so this method gets access to reproduction time the earliest after postponing certain hour the zero hour downloading.
As shown in Figure 2, present embodiment specifically comprises the steps:
The transfer rate of audio-video frequency content between step 200, the file size of obtaining audio-video frequency content, encoder bit rate and the client and server end.
In the present embodiment, encoder bit rate is the encoder bit rate of audio-video frequency content.Transfer rate B can be a static numerical value, obtains transfer rate and can adopt following dual mode:
1) Mean Speed in the scheduled time after the calculating audio-video frequency content begins to download is as transfer rate, for example: the Mean Speed after calculating begins to download in several seconds time is as transfer rate, and this several seconds times can be for more than 1 second, below 6 seconds;
2) mean value that calculates the downloading rate of having downloaded audio-video frequency content promptly adopts the history average of downloading rate in the past as transfer rate.Downloaded k time altogether before supposing, each actual time spent of downloading is L
1, L
1, L, L
k, each downloaded files size is S
1, S
1, L, S
k, then
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps.
T is for downloading the zero hour to playing the time difference constantly the earliest, that is to say, after downloading beginning, after the user needs stand-by period T, beginning playing audio-video content that just can not have interruption, the experience of playing the back user is consistent with the experience that the user downloads the back broadcast fully.
Present embodiment can also according to current time and the earliest reproduction time T obtain not have the absolute time of the beginning playing audio-video content of interruption.
If step 201 is judged transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
Present embodiment obtains reproduction time the earliest according to the transfer rate of audio-video frequency content between file size, encoder bit rate and the client and server end of the audio-video frequency content that obtains; Client can so that with this earliest reproduction time be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this.
Fig. 3 is the present invention's flow chart of reproduction time acquisition methods embodiment three the earliest.Present embodiment provides the method for reproduction time the earliest of obtaining when downloading beginning.Because the implementation of the method that provides of present embodiment needs the regular hour, so this method gets access to reproduction time the earliest after postponing certain hour the zero hour downloading.
As shown in Figure 3, present embodiment specifically comprises the steps:
The transfer rate of audio-video frequency content and audio-video frequency content run-out time between step 300, the file size of obtaining audio-video frequency content, encoder bit rate, the client and server end.
Encoder bit rate is the encoder bit rate of audio-video frequency content in the present embodiment.The obtain manner of transfer rate can be identical with embodiment two, do not repeat them here.
For video content, the audio-video frequency content run-out time can be the reproduction time of run-out captions; For audio content, the audio-video frequency content run-out time can be similar to the time of mute state for audio content ending place.
Specifically, with file size, encoder bit rate, transfer rate and audio-video frequency content run-out time substitution formula (2), obtain reproduction time the earliest.
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; T
0Be the audio-video frequency content run-out time, unit is second.
T is for downloading the zero hour to playing the time difference constantly the earliest, that is to say, after downloading beginning, after the user needs stand-by period T, beginning playing audio-video content that just can not have interruption, the experience of playing the back user is consistent with the experience that the user downloads the back broadcast fully.
Present embodiment can also according to current time and the earliest reproduction time T obtain not have the absolute time of the beginning playing audio-video content of interruption.
If step 301 is judged transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
The transfer rate and the audio-video frequency content run-out time of audio-video frequency content obtain reproduction time the earliest between the file size of the audio-video frequency content that the present embodiment basis is obtained, encoder bit rate, the client and server end; Client can so that with this earliest reproduction time be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this; Because the general user can specially not watch or listen to audio-video frequency content sheet portion, present embodiment is with audio-video frequency content run-out time T
0Take into account, calculate that reproduction time is as far as possible little the earliest, make user's playing audio-video content as early as possible.
Fig. 4 is the present invention's flow chart of reproduction time acquisition methods embodiment four the earliest.Present embodiment provides ought download the big or small S that is
0File the time, obtain the method for reproduction time the earliest.
As shown in Figure 4, present embodiment specifically comprises the steps:
The transfer rate of audio-video frequency content and download file size between step 400, the file size of obtaining audio-video frequency content, encoder bit rate, the client and server end.
In the present embodiment, encoder bit rate is the encoder bit rate of audio-video frequency content.Transfer rate B can be a dynamic value, obtains transfer rate and can adopt Mean Speed in the scheduled time of calculating before the current time as described transfer rate, and wherein current time is S for having downloaded size
0Moment of file, specify as follows:
1) scheduled time can be for fixing, and the Mean Speed that for example adopts before the current time 5 minutes is as the transfer rate of current time;
2) scheduled time also can be for what change, and for example: along with the increase of download time, the scheduled time also can increase, and is 1 minute, 3 minutes, 5 minutes the time series that increases progressively;
3) scheduled time also can be for downloading the zero hour to current time during this period of time.
Step 401, whether judge transfer rate, if execution in step 402 then less than encoder bit rate.
Step 402, according to file size, encoder bit rate, transfer rate and download file size, obtain reproduction time the earliest.
Specifically, with file size, encoder bit rate, transfer rate and download file size substitution formula (3), obtain reproduction time the earliest.
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; S
0Be download file size, unit is a byte.
T is that current time arrives the time difference of playing the moment the earliest, that is to say, is S when having downloaded size
0File the time, after the user needs stand-by period T, just can not have the beginning playing audio-video content of interruption, the experience of playing the back user is consistent with the experience that the user downloads the back broadcast fully.
Present embodiment can also according to current time and the earliest reproduction time T obtain not have the absolute time of the beginning playing audio-video content of interruption.
Further, a kind of possible situation is: the time T that calculates by formula (3) is less than or equal to 0, means that like this ought download size is S
0File the time, the user can begin the playing audio-video content, therefore, in this case, present embodiment points out the user can begin the playing audio-video content at once.
If step 401 is judged transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
The method that provides by present embodiment, client is (3 minutes, 5 minutes or 7 minutes) or calculate reproduction time the earliest in real time at set intervals, and be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this.If transfer rate is stable, periodically or the reproduction time the earliest that calculates in real time can be more and more littler, when reproduction time is less than or equal to 0 the earliest, point out the user can begin the playing audio-video content at once.
Fig. 5 is the present invention's flow chart of reproduction time acquisition methods embodiment five the earliest.Present embodiment provides ought download the big or small S that is
0File the time, obtain the method for reproduction time the earliest.
As shown in Figure 5, present embodiment specifically comprises the steps:
The transfer rate of audio-video frequency content between step 500, the file size of obtaining audio-video frequency content, encoder bit rate, the client and server end, download file size and audio-video frequency content run-out time.
Encoder bit rate is the encoder bit rate of audio-video frequency content in the present embodiment.The obtain manner of transfer rate can be identical with embodiment four, do not repeat them here.
Step 502, according to file size, encoder bit rate, transfer rate, download file size and audio-video frequency content run-out time, obtain reproduction time the earliest.
Specifically, with file size, encoder bit rate, transfer rate, download file size and audio-video frequency content run-out time substitution formula (4), obtain reproduction time the earliest.
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; S
0Be download file size, unit is a byte; T
0Be the audio-video frequency content run-out time, unit is second.
T is that current time arrives the time difference of playing the moment the earliest, that is to say, is S when having downloaded size
0File the time, after the user needs stand-by period T, just can not have the beginning playing audio-video content of interruption, the experience of playing the back user is consistent with the experience that the user downloads the back broadcast fully.
Present embodiment can also according to current time and the earliest reproduction time T obtain not have the absolute time of the beginning playing audio-video content of interruption.
Further, a kind of possible situation is: the time T that calculates by formula (4) is less than or equal to 0, means that like this ought download size is S
0File the time, the user can begin the playing audio-video content, therefore, in this case, present embodiment points out the user can begin the playing audio-video content at once.
If step 501 is judged transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
The method that provides by present embodiment, client is (3 minutes, 5 minutes or 7 minutes) or calculate reproduction time the earliest in real time at set intervals, and be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this; If transfer rate is stable, periodically or the reproduction time the earliest that calculates in real time can be more and more littler, when reproduction time is less than or equal to 0 the earliest, point out the user can begin the playing audio-video content at once; In addition, because the general user can specially not watch or listen to audio-video frequency content sheet portion, present embodiment is with audio-video frequency content run-out time T
0Take into account, calculate that reproduction time is as far as possible little the earliest, make user's playing audio-video content as early as possible.
Fig. 6 is the present invention's structural representation of reproduction time deriving means one embodiment the earliest.As shown in Figure 6, present embodiment specifically comprises: parameter acquisition module 11 and time-obtaining module 12.Wherein, parameter acquisition module 11 is used to obtain the transfer rate of audio-video frequency content between file size, encoder bit rate and the client and server end of audio-video frequency content; Time-obtaining module 12 is used for obtaining reproduction time the earliest according to file size, encoder bit rate and transfer rate.
Present embodiment can also comprise judge module 13, and this judge module 13 is used to judge that whether transfer rate is less than encoder bit rate.When judge module 13 was judged transfer rate less than encoder bit rate, time-obtaining module 12 was obtained reproduction time the earliest according to file size, encoder bit rate and transfer rate.When judge module 13 is judged transfer rate more than or equal to encoder bit rate, then point out the user can begin the playing audio-video content at once, do not need to wait for.
The method that present embodiment can provide according to method embodiment two is obtained reproduction time the earliest, does not repeat them here.
Further, parameter acquisition module 11 can also be used to obtain the audio-video frequency content run-out time; Time-obtaining module 12 specifically is used for obtaining reproduction time the earliest according to file size, encoder bit rate, transfer rate and audio-video frequency content run-out time.Particularly, the method that can provide according to method embodiment three is obtained reproduction time the earliest.
Present embodiment obtains reproduction time the earliest according to the transfer rate of audio-video frequency content between file size, encoder bit rate and the client and server end of the audio-video frequency content that obtains; Client can so that with this earliest reproduction time be prompted to the user, in downloading process, the user can clearly be known time that can not have the playing audio-video of interruption content like this.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (15)
1, a kind of acquisition methods of reproduction time the earliest is characterized in that comprising:
Obtain the transfer rate of described audio-video frequency content between file size, encoder bit rate and the client and server end of audio-video frequency content;
According to described file size, encoder bit rate and transfer rate, obtain reproduction time the earliest.
2, the acquisition methods of reproduction time the earliest according to claim 1 is characterized in that, according to file size, encoder bit rate and transfer rate, obtaining the earliest, reproduction time also comprises before: judge that whether described transfer rate is less than described encoder bit rate described;
If, then carry out according to described file size, encoder bit rate and transfer rate, obtain reproduction time the earliest.
3, the acquisition methods of reproduction time the earliest according to claim 2 is characterized in that, described according to file size, encoder bit rate and transfer rate, obtaining the earliest, reproduction time is specially: according to following formula, obtain reproduction time the earliest;
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps.
4, the acquisition methods of reproduction time the earliest according to claim 2 is characterized in that also comprising: obtain the audio-video frequency content run-out time;
Described according to file size, encoder bit rate and transfer rate, obtaining the earliest, reproduction time comprises: according to file size, encoder bit rate, transfer rate and described audio-video frequency content run-out time, obtain described reproduction time the earliest.
5, the acquisition methods of reproduction time the earliest according to claim 4, it is characterized in that, described according to file size, encoder bit rate, transfer rate and audio-video frequency content run-out time, obtain described reproduction time the earliest and be specially:, obtain reproduction time the earliest according to following formula;
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; T
0Be the audio-video frequency content run-out time, unit is second.
6, the acquisition methods of reproduction time the earliest according to claim 2 is characterized in that also comprising: the download file size of obtaining the described audio-video frequency content of current time;
Described according to file size, encoder bit rate and transfer rate, obtaining the earliest, reproduction time comprises: according to file size, encoder bit rate, transfer rate and described download file size, obtain described reproduction time the earliest.
7, the acquisition methods of reproduction time the earliest according to claim 6, it is characterized in that, described according to file size, encoder bit rate, transfer rate and download file size, obtain described reproduction time the earliest and be specially:, obtain reproduction time the earliest according to following formula;
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; S
0Be download file size, unit is a byte.
8, the acquisition methods of reproduction time the earliest according to claim 2 is characterized in that also comprising: the download file size and the audio-video frequency content run-out time of obtaining the described audio-video frequency content of current time;
Described according to file size, encoder bit rate and transfer rate, obtaining the earliest, reproduction time comprises: according to file size, encoder bit rate, transfer rate, download file size and audio-video frequency content run-out time, obtain described reproduction time the earliest.
9, the acquisition methods of reproduction time the earliest according to claim 8, it is characterized in that, described according to file size, encoder bit rate, transfer rate, download file size and audio-video frequency content run-out time, obtaining described reproduction time the earliest is specially: according to following formula, obtain reproduction time the earliest;
Wherein, T is reproduction time the earliest, and unit is second; S is a file size, and unit is a byte; B is a transfer rate, and unit is bps; R is an encoder bit rate, and unit is bps; S
0Be download file size, unit is a byte; T
0Be the audio-video frequency content run-out time, unit is second.
10, the acquisition methods of reproduction time the earliest according to claim 2 is characterized in that, the described transfer rate of obtaining is specially:
Calculate Mean Speed in scheduled time after described audio-video frequency content begins to download as described transfer rate;
Perhaps, calculate the mean value of the downloading rate of having downloaded audio-video frequency content as described transfer rate;
Perhaps, calculate the Mean Speed of current time in the scheduled time before as described transfer rate.
11, a kind of deriving means of reproduction time the earliest is characterized in that comprising:
Parameter acquisition module is used to obtain the transfer rate of described audio-video frequency content between file size, encoder bit rate and the client and server end of audio-video frequency content;
Time-obtaining module is used for obtaining reproduction time the earliest according to described file size, encoder bit rate and transfer rate.
12, the deriving means of reproduction time the earliest according to claim 11 is characterized in that also comprising: judge module is used to judge that whether described transfer rate is less than described encoder bit rate;
Described time-obtaining module specifically is used for according to described file size, encoder bit rate and transfer rate, obtaining reproduction time the earliest when described judge module is judged transfer rate less than encoder bit rate.
13, the deriving means of reproduction time the earliest according to claim 12 is characterized in that:
Described parameter acquisition module also is used to obtain the audio-video frequency content run-out time;
Described time-obtaining module specifically is used for obtaining described reproduction time the earliest according to file size, encoder bit rate, transfer rate and described audio-video frequency content run-out time.
14, the deriving means of reproduction time the earliest according to claim 12 is characterized in that:
Described parameter acquisition module also is used to obtain the download file size of the described audio-video frequency content of current time;
Described time-obtaining module specifically is used for obtaining described reproduction time the earliest according to file size, encoder bit rate, transfer rate and described download file size.
15, the deriving means of reproduction time the earliest according to claim 12 is characterized in that:
Described parameter acquisition module also is used to obtain the download file size and the audio-video frequency content run-out time of the described audio-video frequency content of current time;
Described time-obtaining module specifically is used for obtaining described reproduction time the earliest according to file size, encoder bit rate, transfer rate, download file size and audio-video frequency content run-out time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100889857A CN101588391A (en) | 2009-07-15 | 2009-07-15 | Method and apparatus for acquiring earliest playing time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100889857A CN101588391A (en) | 2009-07-15 | 2009-07-15 | Method and apparatus for acquiring earliest playing time |
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| CN101588391A true CN101588391A (en) | 2009-11-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790779A (en) * | 2011-05-16 | 2012-11-21 | 腾讯科技（深圳）有限公司 | Method and device for downloading live video resources |
| CN103916414A (en) * | 2012-12-31 | 2014-07-09 | 华为技术有限公司 | Transmission rate configuration method, terminal device, server and system |
-
2009
- 2009-07-15 CN CNA2009100889857A patent/CN101588391A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790779A (en) * | 2011-05-16 | 2012-11-21 | 腾讯科技（深圳）有限公司 | Method and device for downloading live video resources |
| CN102790779B (en) * | 2011-05-16 | 2016-04-13 | 腾讯科技（深圳）有限公司 | A kind of live video resource downloading method and device |
| CN103916414A (en) * | 2012-12-31 | 2014-07-09 | 华为技术有限公司 | Transmission rate configuration method, terminal device, server and system |
| CN103916414B (en) * | 2012-12-31 | 2017-09-05 | 华为技术有限公司 | Transmission rate collocation method, terminal device, server and system |
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Application publication date: 20091125 |