CN104185037A - Method, device and system for transmitting and playing video - Google Patents
Method, device and system for transmitting and playing video Download PDFInfo
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- CN104185037A CN104185037A CN201410071515.0A CN201410071515A CN104185037A CN 104185037 A CN104185037 A CN 104185037A CN 201410071515 A CN201410071515 A CN 201410071515A CN 104185037 A CN104185037 A CN 104185037A
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Abstract
The invention discloses a method, device and system for transmitting and playing a video. The method for playing the video comprises receiving a positioning play point of the video on demand; determining a ts fragment file where the positioning play point locates and an I frame which is closest to the positioning play point in the ts fragment file according to an M3U8 index file and an I frame index file, obtained in advance, of the video on demand, wherein the I frame index file comprises sequence number of all ts fragment files and the sequence number of all I frames in each ts fragment file; sending a request for obtaining the determined ts fragment file; receiving the ts fragment file and all the ts fragment files after the ts fragment file; and playing the video from the I frame of the determined ts fragment file. The method, device and system for transmitting and playing the video can respond to the positioning play requirements of users in accurately, quickly and efficiently.
Description
Technical field
The present invention relates to video playback field, more specifically, relate to the methods, devices and systems of a kind of transmission, displaying video.
Background technology
HTTP Live Streaming (HLS) be Apple (Apple Inc.) realize based on HTTP(Hypertext transfer protocol, HTML (Hypertext Markup Language)) streaming media agreement, can realize the broadcasting of Streaming Media.
HLS realizes based on http protocol, HLS agreement is stored as data flow continuous at server end, long media file very in short-term, transferring content comprises two parts, (M3U8 index file is a kind of description document of stipulating in the Http Live Streaming of apple (apple) company agreement to the one, M3U8 index file, be also referred to as M3U8 description document, M3U8 file is described media file by text mode, by a series of labels, formed), the 2nd, MPEG-TS(Moving Pictures Experts Group/Motion Pictures Experts Group-Transport Stream, dynamic image expert group-transport stream) media file of form.M3U8 index file is the index file for the media file establishment of these MPEG-TS forms.These media files are constantly downloaded and play to client, just realized the broadcasting of Streaming Media.
Yet how can respond as early as possible user is a problem demanding prompt solution to the random position playing request of Streaming Media.
Summary of the invention
In view of this, the object of the embodiment of the present invention is the methods, devices and systems that propose a kind of transmission, displaying video, and it can be realized by the random position of order video and playing.
In order to achieve the above object, the embodiment of the present invention proposes a kind of method of transmission, displaying video, comprises the following steps:
Reception is by the positioning playing of order video point;
According to the described M3U8 index file by order video obtaining in advance, determine the transport stream fragment file at described positioning playing point place;
According to the described I frame index file by order video obtaining in advance, determine described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of all transport stream fragment files in order video and each transport stream fragment file;
The request of definite described transport stream fragment file is obtained in transmission;
Receive described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Described I frame from the described transport stream fragment file of determining starts displaying video.
In the embodiment of the present invention, by determining, by the ts fragment file at the positioning playing point place of order video and this this positioning playing of ts fragment file middle distance, put nearest I frame, can respond accurately, fast and efficiently user's positioning playing requirement.
As technique scheme preferably, the described transport stream fragment file of determining described positioning playing point place, comprising: the transport stream fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each transport stream fragment file.
The embodiment of the present invention also proposes a kind of method of transmission of video, comprises the following steps:
When receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The request of reception to the transport stream fragment file in described video; All transport stream fragment files after the described transport stream fragment file sending request and described transport stream fragment file.
In the embodiment of the present invention, server generates M3U8 index file and I frame index file and sends ts fragment file according to the request of client, thereby realizes to respond accurately, fast and efficiently user's positioning playing requirement.
The embodiment of the present invention also proposes a kind of device of displaying video, comprising:
The first receiver module, for receiving by the positioning playing of order video point;
The first determination module, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module, for sending the request of obtaining definite described transport stream fragment file;
The second receiver module, for receiving described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Playing module, for the described I frame of the described transport stream fragment file from determining start displaying video as technique scheme preferably, described the first determination module is used for: the transport stream fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each transport stream fragment file.
The embodiment of the present invention also proposes a kind of device of transmission of video, comprising:
The second sending module, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module, for receiving the request to the transport stream fragment file of described video;
The 3rd sending module, for described transport stream fragment file and the described transport stream fragment file all transport stream fragment files afterwards that send request.
The embodiment of the present invention also proposes a kind of system of displaying video, comprises client and server; Wherein, described client comprises:
The first receiver module, for receiving by the positioning playing of order video point;
The first determination module, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module, for sending the request of obtaining definite described transport stream fragment file;
The second receiver module, for receiving described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Playing module, starts displaying video for the described I frame of the described transport stream fragment file from determining;
Described server comprises:
The second sending module, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module, for receiving the request to the transport stream fragment file of described video;
The 3rd sending module, for described transport stream fragment file and the described transport stream fragment file all transport stream fragment files afterwards that send request.
As technique scheme preferably, described the first determination module is used for: the transport stream fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each transport stream fragment file.
The further feature of the embodiment of the present invention and advantage will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in the specification write, claims and accompanying drawing.
Below by drawings and Examples, the technical scheme of the embodiment of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to the embodiment of the present invention, and forms a part for specification, for explaining the present invention, does not form the restriction to the embodiment of the present invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the main method flow chart of the displaying video in the embodiment of the present invention;
Fig. 2 is the main method flow chart of the transmission of video in the embodiment of the present invention;
Fig. 3 is the method flow diagram of client and server end displaying video in the embodiment of the present invention;
Fig. 4 is the structural representation of the device of the displaying video in the embodiment of the present invention;
Fig. 5 is the structural representation of the device of the transmission of video in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for the description and interpretation embodiment of the present invention, is not intended to limit the present invention embodiment.
The main method flow process that is illustrated in figure 1 the displaying video in the embodiment of the present invention, is mainly used in client, and the method comprises:
Step S101: receive by the positioning playing of order video point.
Step S102: the transport stream fragment file of determining described positioning playing point place according to the described M3U8 index file by order video obtaining in advance.
Step S103: determine described in described transport stream fragment file middle distance that according to the described I frame index file by order video obtaining in advance positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of all transport stream fragment files in order video and each transport stream fragment file.
According to HLS agreement, video consists of in chronological order a plurality of ts fragment files.M3U8 index file has recorded order and the duration of each ts fragment.Can obtain by the duration of total duration of order video and each ts fragment file by M3U8 index file, according to determined the ts fragment file at described positioning playing point place by the duration of total duration of order video and each ts fragment file, conventionally, the duration of ts fragment file is fixing or equates.
Step S104: send the request of obtaining definite described ts fragment file.
Step S105: receive described ts fragment file and described ts fragment file all ts fragment files afterwards.
Step S106: the described I frame from the described ts fragment file of determining starts displaying video.
Owing to needing first to carry out the decoding of frame of video before video playback, and only has I frame just can decode separately (frame that the decoding of I frame does not need to rely on other in other words).So in the time of user's random request broadcast point, if frame corresponding to this broadcast point is not I frame, that just cannot be play, and needs to find user to ask the nearest I frame of broadcast point, later just can normal play from this I frame for this reason.
In the embodiment of the present invention, by determining, by the ts fragment file at the positioning playing point place of order video and this this positioning playing of ts fragment file middle distance, put nearest I frame, can respond accurately, fast and efficiently user's positioning playing requirement.
The method that is illustrated in figure 2 the transmission of video proposing in the embodiment of the present invention, is mainly used in server end, comprises the following steps:
Step S201: when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the ts fragment file in described video and each ts fragment file.
Step S202: receive the request to the ts fragment file in described video.
Step S203: all ts fragment files after the described ts fragment file sending request and described ts fragment file.
In the embodiment of the present invention, server generates in advance M3U8 index file and I frame index file and sends ts fragment file according to the request of client, thereby realizes to respond accurately, fast and efficiently user's positioning playing requirement.
Below, the method for carrying out alternately to introduce in detail the displaying video proposing in the embodiment of the present invention by client and server, as shown in Figure 3, comprises the following steps:
Step S301: server end generates M3U8 index file and the I frame index file of each video in advance.
Wherein, the I frame index file of a certain video comprises the sequence number of all I frames in the sequence number of all ts fragment files in this video and each ts fragment file.
Step S302: the request of client order video A.
Step S303: user end to server end sends the request of order video A.
Step S304: server end sends to client by the M3U8 index file of video A and I frame index file.
Step S305: the positioning playing point that client is set video A to user.
Step S306: client is according to M3U8 index file and I frame index file, determines that the ts fragment file at positioning playing point place and this definite this positioning playing of ts fragment file middle distance put nearest I frame.
Step S307: user end to server sends the request of obtaining this definite ts fragment file.
Wherein, in the request of transmission with the sequence number of definite ts fragment file.
Step S308: all ts fragment files after the ts fragment file that server end sends request to client and this fragment file.
Step S309: all ts fragment files after the ts fragment file of client request and this fragment file.
Step S310: client is put nearest I frame from definite this positioning playing of ts fragment file middle distance and started displaying video.
Correspondingly, as Fig. 4 shows, in the embodiment of the present invention, also disclose a kind of device of displaying video, having comprised:
The first receiver module 401, for receiving by the positioning playing of order video point;
The first determination module 402, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module 403, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module 404, for sending the request of obtaining definite described ts fragment file;
The second receiver module 405, for receiving described ts fragment file and described ts fragment file all ts fragment files afterwards;
Playing module 406, starts displaying video for the described I frame of the described ts fragment file from determining.
Wherein, the first determination module 402 is for the ts fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each ts fragment file.
As shown in Figure 5, the embodiment of the present invention also provides a kind of device of transmission of video, comprising:
The second sending module 501, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module 502, for receiving the request to the ts fragment file of described video;
The 3rd sending module 503, for described ts fragment file and the described ts fragment file all ts fragment files afterwards that send request.
The embodiment of the present invention has also offered a kind of system of displaying video, comprises client and server; Wherein, described client comprises:
The first receiver module, for receiving by the positioning playing of order video point;
The first determination module, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module, for sending the request of obtaining definite described ts fragment file;
The second receiver module, for receiving described ts fragment file and described ts fragment file all ts fragment files afterwards;
Playing module, starts displaying video for the described I frame of the described ts fragment file from determining;
Described server comprises:
The second sending module, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module, for receiving the request to the ts fragment file of described video;
The 3rd sending module, for described ts fragment file and the described ts fragment file all ts fragment files afterwards that send request.
Wherein, the first determination module is used for: the ts fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each ts fragment file.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. a method for displaying video, is characterized in that, comprises the following steps:
Reception is by the positioning playing of order video point;
According to the described M3U8 index file by order video obtaining in advance, determine the transport stream fragment file at described positioning playing point place;
According to the described I frame index file by order video obtaining in advance, determine described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of all transport stream fragment files in order video and each transport stream fragment file;
The request of definite described transport stream fragment file is obtained in transmission;
Receive described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Described I frame from the described transport stream fragment file of determining starts displaying video.
2. method according to claim 1, is characterized in that, the described transport stream fragment file of determining described positioning playing point place, comprising:
According to the described duration by total duration of order video and each transport stream fragment file, determine the transport stream fragment file at described positioning playing point place.
3. a method for transmission of video, is characterized in that, comprises the following steps:
When receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The request of reception to the transport stream fragment file in described video;
All transport stream fragment files after the described transport stream fragment file sending request and described transport stream fragment file.
4. a device for displaying video, is characterized in that, comprising:
The first receiver module, for receiving by the positioning playing of order video point;
The first determination module, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module, for sending the request of obtaining definite described transport stream fragment file;
The second receiver module, for receiving described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Playing module, starts displaying video for the described I frame of the described transport stream fragment file from determining.
5. device according to claim 4, is characterized in that, described the first determination module is used for: the transport stream fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each transport stream fragment file.
6. a device for transmission of video, is characterized in that, comprising:
The second sending module, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module, for receiving the request to the transport stream fragment file of described video;
The 3rd sending module, for described transport stream fragment file and the described transport stream fragment file all transport stream fragment files afterwards that send request.
7. a system for displaying video, is characterized in that, comprises client and server; Wherein, described client comprises:
The first receiver module, for receiving by the positioning playing of order video point;
The first determination module, for determining the transport stream fragment file at described positioning playing point place according to the described M3U8 index file by order video obtaining in advance;
The second determination module, for determining according to the described I frame index file by order video that obtains in advance described in described transport stream fragment file middle distance that positioning playing is put nearest I frame; Wherein, described I frame index file comprises described by the sequence number of all I frames in the sequence number of the transport stream fragment file in order video and each transport stream fragment file;
The first sending module, for sending the request of obtaining definite described transport stream fragment file;
The second receiver module, for receiving described transport stream fragment file and described transport stream fragment file all transport stream fragment files afterwards;
Playing module, starts displaying video for the described I frame of the described transport stream fragment file from determining;
Described server comprises:
The second sending module, for when receiving the request of order video, send M3U8 index file and the I frame index file of described video, described I frame index file comprises the sequence number of all I frames in the sequence number of the transport stream fragment file in described video and each transport stream fragment file;
The 3rd receiver module, for receiving the request to the transport stream fragment file of described video;
The 3rd sending module, for described transport stream fragment file and the described transport stream fragment file all transport stream fragment files afterwards that send request.
8. system according to claim 7, is characterized in that, described the first determination module is used for: the transport stream fragment file of determining described positioning playing point place according to the described duration by total duration of order video and each transport stream fragment file.
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| CN201410071515.0A CN104185037A (en) | 2014-02-28 | 2014-02-28 | Method, device and system for transmitting and playing video |
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| CN201410071515.0A CN104185037A (en) | 2014-02-28 | 2014-02-28 | Method, device and system for transmitting and playing video |
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| CN111866603A (en) * | 2020-07-21 | 2020-10-30 | 广州市保伦电子有限公司 | Video file production method based on SRS, background server and system |
| CN113259779A (en) * | 2021-07-01 | 2021-08-13 | 杭州觅睿科技股份有限公司 | Video processing method, device, equipment and storage medium |
| CN113259779B (en) * | 2021-07-01 | 2021-09-17 | 杭州觅睿科技股份有限公司 | Video processing method, device, equipment and storage medium |
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