CN104410901A - Play method and play device of M3U8 format live stream - Google Patents
Play method and play device of M3U8 format live stream Download PDFInfo
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- CN104410901A CN104410901A CN201410658822.9A CN201410658822A CN104410901A CN 104410901 A CN104410901 A CN 104410901A CN 201410658822 A CN201410658822 A CN 201410658822A CN 104410901 A CN104410901 A CN 104410901A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
Abstract
The invention discloses a play method and play device of M3U8 format live stream. Through the adoption of the method and device, a player can play files of a HLS streaming media network transmission protocol. The play method comprises the following steps: setting an analysis unit in a player capable of playing the TS file, analyzing the M3U8 file through the analysis unit, acquiring a download path of each TS file in the data stream at a file secondary position of the M3U8 file; downloading the TS file according to the download path to acquire the data stream, and playing the data stream through the player.
Description
Technical field
The present invention relates to Internet technical field, particularly a kind of player method of M3U8 form live TV stream and playing device.
Background technology
M3U is a kind of file format containing multimedia file list, at first in order to audio file design, and such as MP3.But a lot of software starts this form to be applied to video play lists now, the video source address that each information points one in file is online.
M3U8 is the M3U of Unicode (Unicode, ten thousand country codes, single code are a kind of character codes used on computers) version, can use the character of UTF-8Unicode in the file of M3U8.M3U and M3U8 is based on HTTP Live Streaming form.The live TV stream system of Apple is used on the equipment of IOS (a kind of operating system of Apple) widely.
Wherein, HTTP Live Streaming (being called for short HLS) is a stream media network host-host protocol based on HTTP (HTTP) proposed by Apple.It is a part for Apple " QuickTime X " and iPhone software systems.Its operation principle is that whole stream is divided into the file based on HTTP little one by one to download, and only downloads at every turn.When Media Stream is play, client can be selected to download same resource with different speed from many different Back Up Sources, allows flow media session to adapt to different data rates.When a beginning flow media session, client can download M3U8 playlist (the extended M3U playlist) file that comprises metadata, for finding available Media Stream.
The HLS of " Adobe flash player " (a kind of player) and apple is incompatible, but cross-platform due to HLS, and the advantage that multi code Rate of Chinese character switches, so need to provide the player can supporting HLS.
Summary of the invention
The invention provides a kind of player method and playing device of M3U8 form live TV stream, in order to the file making player can play HLS stream media network host-host protocol.
The invention provides a kind of player method of M3U8 form live TV stream, comprising:
At the player can playing TS file, resolution unit is set;
M3U8 file is resolved by described resolution unit;
The download path of each TS file in data flow is obtained at the file secondary location of described M3U8 file;
Download described TS file according to described download path, obtain described data flow;
By data flow described in described player plays.
Optionally, in above-mentioned player method, also comprise:
Carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check.
Optionally, in above-mentioned player method, downloading in the step of described TS file according to described download path, adopting described adaptive code check to download.
Optionally, in above-mentioned player method, described player is the flash player of increasing income, and can play MP4 file.
Optionally, in above-mentioned player method, realize described resolution unit by action script developing instrument.
In order to better realize object of the present invention, present invention also offers a kind of playing device of M3U8 form live TV stream, comprising:
Module is set, for: at the player can playing TS file, resolution unit is set;
Parsing module, for: resolve M3U8 file by described resolution unit;
Path module, for: the download path obtaining each TS file in data flow at the file secondary location of described M3U8 file;
Download module, for: download described TS file according to described download path, obtain described data flow;
Playing module, for: by data flow described in described player plays.
Optionally, in above-mentioned playing device, also comprise,
Adaptation module, for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check.
Optionally, in above-mentioned playing device, described download module adopts described adaptive code check to download.
In order to better realize object of the present invention, present invention also offers a kind of playing device of M3U8 form live TV stream, comprising:
Resolution unit, for: resolve M3U8 file, obtain the download path of each TS file in data flow at the file secondary location of described M3U8 file; Download described TS file according to described download path, obtain described data flow;
The player of TS file can be play, for: play described data flow.
Optionally, in above-mentioned playing device, described player is the flash player of increasing income, and can play MP4 file;
Described resolution unit also for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check, adopt described adaptive code check to download.
The present invention has following technique effect: in embodiments of the present invention, by resolving M3U8 file, obtain the download path of each TS file in data flow at file secondary location and download, thus player can play the file of the HLS stream media network host-host protocol based on M3U8 play list file.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of the player method of one embodiment of the invention;
Fig. 2 is the flow chart of the player method of another embodiment of the present invention;
Fig. 3 is the structure chart of the playing device of one embodiment of the invention;
Fig. 4 is the structure chart of the playing device of another 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 is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the flow chart of the player method of one embodiment of the invention, and as shown in Figure 1, the embodiment of the present invention provides a kind of player method of M3U8 form live TV stream, and it comprises:
Step 101, arranges resolution unit at the player can playing TS file;
Step 102, resolves M3U8 file by described resolution unit;
Step 103, obtains the download path of each TS file in data flow at the file secondary location of described M3U8 file;
Step 104, downloads described TS file according to described download path, obtains described data flow;
Step 105, by data flow described in described player plays.
Visible, the embodiment of the present invention is by resolving M3U8 file, obtain the download path of each TS file in data flow at file secondary location and download, thus player can play the file of the HLS stream media network host-host protocol based on M3U8 play list file.
Fig. 2 is the flow chart of the player method of another embodiment of the present invention, in another embodiment of the present invention, also comprises:
Carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check, downloading in the step of described TS file according to described download path, adopt described adaptive code check to download.As shown in Figure 2, the complete procedure of this embodiment is as follows:
Step 201, arranges resolution unit at the player can playing TS file;
Step 202, resolves M3U8 file by described resolution unit;
Step 203, carries out rate adaption in the top position of file of described M3U8 file, obtains adaptive code check; The download path of each TS file in data flow is obtained at the file secondary location of described M3U8 file;
Step 204, adopts described adaptive code check to download described TS file according to described download path, obtains described data flow;
Step 205, by data flow described in described player plays.
Wherein, rate adaption first reads the range of code rates supported recorded top position, then compares with the parameter such as disposal ability, current bandwidth of current player, find the code check that applicable in this range of code rates.
In yet another embodiment of the present invention, described player is the flash player of increasing income, and can play MP4 file.Described resolution unit is realized by action script developing instrument.
Fig. 3 is the structure chart of the playing device of the embodiment of the present invention, as shown in Figure 3, a kind of playing device of M3U8 form live TV stream, it comprises:
Module 301 is set, for: at the player can playing TS file, resolution unit is set;
Parsing module 302, for: resolve M3U8 file by described resolution unit;
Path module 303, for: the download path obtaining each TS file in data flow at the file secondary location of described M3U8 file;
Download module 304, for: download described TS file according to described download path, obtain described data flow;
Playing module 305, for: by data flow described in described player plays.
Visible, the embodiment of the present invention resolves M3U8 file by the resolution unit arranging module installation, obtain the download path of each TS file in data flow at file secondary location and download, thus player can play the file of the HLS stream media network host-host protocol based on M3U8 play list file.
In one embodiment, can also comprise, adaptation module, for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check.Wherein, described download module adopts described adaptive code check to download.
Fig. 4 is the structure chart of the playing device of another embodiment of the present invention.As shown in Figure 4, a kind of playing device of M3U8 form live TV stream, comprising:
Resolution unit 401, for: resolve M3U8 file, obtain the download path of each TS file in data flow at the file secondary location of described M3U8 file; Download described TS file according to described download path, obtain described data flow;
The player 402 of TS file can be play, for: play described data flow.
Visible, the embodiment of the present invention resolves M3U8 file by resolution unit, obtain the download path of each TS file in data flow at file secondary location and download, thus player can play the file of the HLS stream media network host-host protocol based on M3U8 play list file.
Wherein, described player is the flash player of increasing income, and can play MP4 file;
Described resolution unit also for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check, adopt described adaptive code check to download.
Wherein, TS (Transport Stream, transport stream) is for the MPEG2 form in program, is mainly used in the program transmitted in real time, the TV programme of such as real-time broadcast.
The flash player of increasing income adopts " Flowplayer ", and he can support to play mp4 and ts stream, so in this process integrated, has needed one to resolve M3U8 file, has then downloaded ts, then flow data is given player to play just passable.How to resolve M3U8 file to understand, introducing the form of M3U8 file below.
M3U8 file is the expansion of M3U file, defines the keyword of expansion in rfc (file of basic ICP/IP protocol that Request for Comments relies on the current network of numbering form record etc.), such as:
#EXT-X-TARGETDURATION
Define the maximum duration of each TS
#EXT-X-MEDIA-SEQUENCE
Define the sequence number of first file in current m3u8 file, each TS file has fixing unique sequence number in m3u8 file, and this sequence number is used for the switching code rate when MBR (MBR) and aligns
#EXT-X-KEY
The url (uniform resource locator) of definition cipher mode and KEY file, for obtaining the KEY file decoding TS file of 16 bits
……
Therefore, the keyword of M3U8 file can be obtained by this rfc, thus read the implication identifying each paragraph in M3U8 file.
M3U8 divides top M3U8 and secondary M3U8, and top M3U8 mainly does multi code Rate of Chinese character adaptation, and secondary M3U8 is only real section file, client gives tacit consent to and first can select the request that code check is the highest, if find that code check does not reach, can ask the stream of low bit-rate.
Top M3U8 file in an actual use is as follows:
#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID＝201273221265,BANDWIDTH＝358400
11.m3u8
#EXT-X-STREAM-INF:PROGRAM-ID＝201273221265,BANDWIDTH＝972800
22.m3u8
In turn define 11.m3u8 and 22.m3u8 two second grade files in top M3U8 file above, client can select one of them to obtain its content.
Secondary M3U8 file content mainly describes the position of section file, no longer illustrates.
According to the file format of above M3U8, write with the actionscript (action script) of flash and resolve and download, obtain resolution unit.
Visible, in order to utilize, HLS's is cross-platform, and the advantage that multi code Rate of Chinese character switches, and solve the problem that the HLS of " Adobe flashplayer " (a kind of player) and apple is incompatible, the present invention these two Function Integration Mechanisms together.The Flowplayer adopted is a player of increasing income, and current function can play MP4 and ts file, but can not play HLS (i.e. M3U8) file provided before transformation.In integration function process, in flowplayer, increase the function that is resolved M3U8 file, then read the path at line file of each the ts file in file, then download, give flowplayer player plays the ts file downloaded.The function of Function Integration Mechanism can be reached.
As from the foregoing, the present invention has following advantage: in embodiments of the present invention, by resolving M3U8 file, obtain the download path of each TS file in data flow at file secondary location and download, thus player can play the file of the HLS stream media network host-host protocol based on M3U8 play list 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 the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a player method for M3U8 form live TV stream, is characterized in that, comprising:
At the player can playing TS file, resolution unit is set;
M3U8 file is resolved by described resolution unit;
The download path of each TS file in data flow is obtained at the file secondary location of described M3U8 file;
Download described TS file according to described download path, obtain described data flow;
By data flow described in described player plays.
2. player method as claimed in claim 1, is characterized in that, also comprise:
Carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check.
3. player method as claimed in claim 2, is characterized in that, downloading in the step of described TS file according to described download path, adopt described adaptive code check to download.
4. player method as claimed in claim 1, it is characterized in that, described player is the flash player of increasing income, and can play MP4 file.
5. player method as claimed in claim 4, is characterized in that, realize described resolution unit by action script developing instrument.
6. a playing device for M3U8 form live TV stream, is characterized in that, comprising:
Module is set, for: at the player can playing TS file, resolution unit is set;
Parsing module, for: resolve M3U8 file by described resolution unit;
Path module, for: the download path obtaining each TS file in data flow at the file secondary location of described M3U8 file;
Download module, for: download described TS file according to described download path, obtain described data flow;
Playing module, for: by data flow described in described player plays.
7. playing device as claimed in claim 6, is characterized in that, also comprise,
Adaptation module, for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check.
8. playing device as claimed in claim 7, is characterized in that, described download module adopts described adaptive code check to download.
9. a playing device for M3U8 form live TV stream, is characterized in that, comprising:
Resolution unit, for: resolve M3U8 file, obtain the download path of each TS file in data flow at the file secondary location of described M3U8 file; Download described TS file according to described download path, obtain described data flow;
The player of TS file can be play, for: play described data flow.
10. playing device as claimed in claim 9, is characterized in that,
Described player is the flash player of increasing income, and can play MP4 file;
Described resolution unit also for: carry out rate adaption in the top position of file of described M3U8 file, obtain adaptive code check, adopt described adaptive code check to download.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410658822.9A CN104410901A (en) | 2014-11-18 | 2014-11-18 | Play method and play device of M3U8 format live stream |
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| CN201410658822.9A CN104410901A (en) | 2014-11-18 | 2014-11-18 | Play method and play device of M3U8 format live stream |
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| CN201410658822.9A Pending CN104410901A (en) | 2014-11-18 | 2014-11-18 | Play method and play device of M3U8 format live stream |
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| CN110545472A (en) * | 2019-09-04 | 2019-12-06 | 北京字节跳动网络技术有限公司 | Video data processing method and device, electronic equipment and computer readable medium |
| CN110545472B (en) * | 2019-09-04 | 2021-04-16 | 北京字节跳动网络技术有限公司 | Video data processing method and device, electronic equipment and computer readable medium |
| CN111447503A (en) * | 2020-04-26 | 2020-07-24 | 烽火通信科技股份有限公司 | Viewpoint switching method, server and system for multi-viewpoint video |
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