CN116886979A - Online video playing method and system for network on-demand set top box - Google Patents
Online video playing method and system for network on-demand set top box Download PDFInfo
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- 239000012634 fragment Substances 0.000 claims description 24
- 230000003139 buffering effect Effects 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 9
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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
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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
- H04N21/44—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
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Abstract
The application provides a network on-demand set top box video on-line playing method and a system thereof, belonging to the technical field of network on-demand set top boxes, wherein the method comprises the following steps: step S10, the server segments the video based on a time length threshold value to obtain a plurality of sub-videos; step S20, the network on-demand set top box sends a video acquisition request carrying a video name to a server; step S30, the server searches the corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by each sub-video and sends the files to the network on-demand set top box; step S40, the network on-demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, downloads the sub-video based on the video parameters and the quantity threshold and caches the sub-video; and S50, sequentially playing the cached sub-videos, and deleting the played sub-videos until the playing of all the sub-videos is completed. The application has the advantages that: the efficiency and the stability of online video playing of the network video-on-demand set top box are greatly improved.
Description
Technical Field
The application relates to the technical field of network on-demand set top boxes, in particular to a method and a system for online playing of video of a network on-demand set top box.
Background
In the age of rapid information development nowadays, a set-top box is basically an entertainment tool that all households need to have, because the program is wanted to be watched on a television without leaving the set-top box. However, the conventional DVB set-top box needs to access the DVB signal line to watch the tv program stream pushed by the broadcast tv station in real time, and cannot be seen by the user, and the programs provided by the conventional DVB set-top box are very limited, what programs are mainly watched by the broadcast tv station, so that the user experience is poor, and therefore, the network on-demand set-top box is generated and gradually replaces the conventional DVB set-top box.
However, the existing network on-demand set top boxes have the following disadvantages: 1. the communication protocol between the network on-demand set top box and the server is complex, and the network on-demand set top box can obtain accurate video data only by layer analysis, so that long-time analysis is needed before video playing regardless of the speed of the network; 2. when video is played, the memory is consumed, 10G's are originally available in the local memory, but 7G's and 8G's are possibly left during video viewing, so that the running stability of the network video-on-demand set top box is influenced, and further the video playing stability is influenced, the problem of excessive video resource cache is solved, in order to solve the problem, a memory capacity expansion method is conventionally adopted, namely, a phenomenon of insufficient memory is avoided when the video is viewed by distributing point memory to a video viewing thread in software, but the solution method can not radically solve the problem, and the hardware cost is only increased by expanding the memory for one taste.
Therefore, how to provide a method and a system for online playing of video of a network on-demand set top box, so as to improve the efficiency and stability of online playing of video of the network on-demand set top box, becomes a technical problem to be solved urgently.
Disclosure of Invention
The application aims to solve the technical problem of providing a method and a system for online playing of video of a network on-demand set top box, which can improve the efficiency and the stability of online playing of the video of the network on-demand set top box.
In a first aspect, the present application provides a method for online playing video on a network on demand set top box, comprising the following steps:
step S10, a server sets a time length threshold value, and video is segmented based on the time length threshold value to obtain a plurality of sub-videos;
step S20, the network on-demand set top box sends a video acquisition request carrying a video name to a server based on an input on-demand instruction;
step S30, the server searches corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by the sub-videos and sends the M3U8 files to a network on-demand set top box;
step S40, the network on-demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, downloads sub-videos based on the video parameters and the quantity threshold and caches the sub-videos;
and S50, sequentially playing the cached sub-videos, and deleting the played sub-videos until the playing of all the sub-videos is completed.
Further, the step S10 specifically includes:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
Further, the step S20 specifically includes:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
Further, the step S30 specifically includes:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
Further, the step S40 specifically includes:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
In a second aspect, the present application provides a video online playing system of a network on-demand set top box, which comprises the following modules:
the video segmentation module is used for setting a duration threshold by the server, and segmenting the video based on the duration threshold to obtain a plurality of sub-videos;
the on-demand module is used for sending a video acquisition request carrying a video name to the server based on the input on-demand instruction by the network on-demand set top box;
the M3U8 file sending module is used for searching the corresponding sub-videos based on the video acquisition request by the server, generating an M3U8 file based on video parameters carried by each sub-video and sending the M3U8 file to the network on-demand set top box;
the sub-video caching module is used for analyzing the received M3U8 file by the network on-demand set top box to obtain video parameters, setting a quantity threshold value, downloading sub-videos based on the video parameters and the quantity threshold value and caching the sub-videos;
and the video playing module is used for sequentially playing the cached sub videos and deleting the played sub videos until the playing of all the sub videos is completed.
Further, the video segmentation module is specifically configured to:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
Further, the on-demand module is specifically configured to:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
Further, the M3U8 file sending module is specifically configured to:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
Further, the sub video buffering module is specifically configured to:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
The application has the advantages that:
dividing the video based on a set duration threshold by a server to obtain a plurality of sub-videos carrying video parameters, and sending a video acquisition request carrying a video name to the server by the network on-demand set top box based on an input on-demand instruction; the server searches the corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by each sub-video and sends the files to the network on-demand set top box; the network on-demand set top box analyzes the M3U8 file to obtain video parameters, downloads the sub-videos based on the video parameters, limits the number of the cached sub-videos based on a set number threshold, sequentially plays each cached sub-video, and deletes the played sub-videos until the playing of all the sub-videos is completed; because the M3U8 file is essentially a text file, the memory occupancy rate is low, the transmission speed is high, and the third party library is not required to be imported to compile like a JSON file, so that the video parameters can be rapidly subjected to parameter and analysis, and the waiting time of video playing is shortened; the video is divided into a plurality of sub-videos, only the sub-videos with the set quantity threshold value are cached, one sub-video is deleted after one sub-video is played, and then the new sub-video is cached, so that excessive memory is prevented from being occupied, the running stability of the network on-demand set top box is ensured, and the on-line playing efficiency and stability of the network on-demand set top box video are improved greatly.
Drawings
The application will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a flowchart of a video on-line playing method of a network on-demand set top box according to the present application.
Fig. 2 is a schematic structural diagram of a video on-line playing system of a network on-demand set top box according to the present application.
Detailed Description
The technical scheme in the embodiment of the application has the following overall thought: the video parameters are transmitted through the M3U8 file, and as the M3U8 file is a text file, the memory occupancy rate is low, the transmission speed is high, and the video parameters do not need to be imported into a third party library to be compiled like a JSON file, so that the video parameters can be rapidly subjected to parameter and analysis, and the online playing efficiency of the video of the network on-demand set top box is improved; the video is divided into a plurality of sub-videos, and only the sub-videos with the set quantity threshold value are cached, so that excessive memory is prevented from being occupied, and the online playing stability of the video of the network video-on-demand set top box is improved.
Referring to fig. 1 to 2, a preferred embodiment of a video on-line playing method of a network on-demand set top box according to the present application includes the following steps:
step S10, a server sets a time length threshold value, and video is segmented based on the time length threshold value to obtain a plurality of sub-videos; setting the duration threshold to 10S or 20S, for example;
step S20, the network on-demand set top box sends a video acquisition request carrying a video name to a server based on an input on-demand instruction;
step S30, the server searches corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by the sub-videos and sends the M3U8 files to a network on-demand set top box;
step S40, the network on-demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, downloads sub-videos based on the video parameters and the quantity threshold and caches the sub-videos; the number threshold is preferably 3;
and S50, sequentially playing the cached sub-videos, deleting the played sub-videos until the playing of all the sub-videos is completed, and executing a cache emptying operation to avoid the deletion omission of the sub-videos in the middle.
And dividing the video into a plurality of sub-videos, simultaneously only caching the set number of sub-videos with the threshold value, deleting one sub-video after playing one sub-video, and caching the new sub-video, so that excessive memory is avoided, and the running stability of the network video-on-demand set top box is ensured.
The step S10 specifically includes:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
The step S20 specifically includes:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
The step S30 specifically includes:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
Because the M3U8 file is essentially a text file, the memory occupancy rate is low, the transmission speed is high, and the video parameters do not need to be imported into a third party library to be compiled like a JSON file, so that the video parameters can be rapidly subjected to parameter and analysis, and the waiting time of video playing is shortened.
The step S40 specifically includes:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
In implementation, a video transmission chain can be created, the sub-videos are sequentially transmitted and buffered through the video transmission chain, and the playing state and the downloading state of each sub-video are marked based on the segment index.
The application relates to a preferred embodiment of a network video-on-demand set top box video online playing system, which comprises the following modules:
the video segmentation module is used for setting a duration threshold by the server, and segmenting the video based on the duration threshold to obtain a plurality of sub-videos; setting the duration threshold to 10S or 20S, for example;
the on-demand module is used for sending a video acquisition request carrying a video name to the server based on the input on-demand instruction by the network on-demand set top box;
the M3U8 file sending module is used for searching the corresponding sub-videos based on the video acquisition request by the server, generating an M3U8 file based on video parameters carried by each sub-video and sending the M3U8 file to the network on-demand set top box;
the sub-video caching module is used for analyzing the received M3U8 file by the network on-demand set top box to obtain video parameters, setting a quantity threshold value, downloading sub-videos based on the video parameters and the quantity threshold value and caching the sub-videos; the number threshold is preferably 3;
and the video playing module is used for sequentially playing the cached sub-videos, deleting the played sub-videos until the playing of all the sub-videos is completed, and executing a cache emptying operation to avoid the deletion omission of the sub-videos in the middle.
And dividing the video into a plurality of sub-videos, simultaneously only caching the set number of sub-videos with the threshold value, deleting one sub-video after playing one sub-video, and caching the new sub-video, so that excessive memory is avoided, and the running stability of the network video-on-demand set top box is ensured.
The video segmentation module is specifically used for:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
The on-demand module is specifically used for:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
The M3U8 file sending module is specifically configured to:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
Because the M3U8 file is essentially a text file, the memory occupancy rate is low, the transmission speed is high, and the video parameters do not need to be imported into a third party library to be compiled like a JSON file, so that the video parameters can be rapidly subjected to parameter and analysis, and the waiting time of video playing is shortened.
The sub video cache module is specifically configured to:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
In implementation, a video transmission chain can be created, the sub-videos are sequentially transmitted and buffered through the video transmission chain, and the playing state and the downloading state of each sub-video are marked based on the segment index.
In summary, the application has the advantages that:
dividing the video based on a set duration threshold by a server to obtain a plurality of sub-videos carrying video parameters, and sending a video acquisition request carrying a video name to the server by the network on-demand set top box based on an input on-demand instruction; the server searches the corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by each sub-video and sends the files to the network on-demand set top box; the network on-demand set top box analyzes the M3U8 file to obtain video parameters, downloads the sub-videos based on the video parameters, limits the number of the cached sub-videos based on a set number threshold, sequentially plays each cached sub-video, and deletes the played sub-videos until the playing of all the sub-videos is completed; because the M3U8 file is essentially a text file, the memory occupancy rate is low, the transmission speed is high, and the third party library is not required to be imported to compile like a JSON file, so that the video parameters can be rapidly subjected to parameter and analysis, and the waiting time of video playing is shortened; the video is divided into a plurality of sub-videos, only the sub-videos with the set quantity threshold value are cached, one sub-video is deleted after one sub-video is played, and then the new sub-video is cached, so that excessive memory is prevented from being occupied, the running stability of the network on-demand set top box is ensured, and the on-line playing efficiency and stability of the network on-demand set top box video are improved greatly.
While specific embodiments of the application have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the application, and that equivalent modifications and variations of the application in light of the spirit of the application will be covered by the claims of the present application.
Claims (10)
1. A network video-on-demand set-top box video online playing method is characterized in that: the method comprises the following steps:
step S10, a server sets a time length threshold value, and video is segmented based on the time length threshold value to obtain a plurality of sub-videos;
step S20, the network on-demand set top box sends a video acquisition request carrying a video name to a server based on an input on-demand instruction;
step S30, the server searches corresponding sub-videos based on the video acquisition request, generates M3U8 files based on video parameters carried by the sub-videos and sends the M3U8 files to a network on-demand set top box;
step S40, the network on-demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, downloads sub-videos based on the video parameters and the quantity threshold and caches the sub-videos;
and S50, sequentially playing the cached sub-videos, and deleting the played sub-videos until the playing of all the sub-videos is completed.
2. The online video playing method of the network on-demand set top box of claim 1, wherein the online video playing method comprises the following steps: the step S10 specifically includes:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
3. The online video playing method of the network on-demand set top box of claim 1, wherein the online video playing method comprises the following steps: the step S20 specifically includes:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
4. The online video playing method of the network on-demand set top box of claim 1, wherein the online video playing method comprises the following steps: the step S30 specifically includes:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
5. The online video playing method of the network on-demand set top box of claim 1, wherein the online video playing method comprises the following steps: the step S40 specifically includes:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
6. A network video on-line playing system of a set top box is characterized in that: the device comprises the following modules:
the video segmentation module is used for setting a duration threshold by the server, and segmenting the video based on the duration threshold to obtain a plurality of sub-videos;
the on-demand module is used for sending a video acquisition request carrying a video name to the server based on the input on-demand instruction by the network on-demand set top box;
the M3U8 file sending module is used for searching the corresponding sub-videos based on the video acquisition request by the server, generating an M3U8 file based on video parameters carried by each sub-video and sending the M3U8 file to the network on-demand set top box;
the sub-video caching module is used for analyzing the received M3U8 file by the network on-demand set top box to obtain video parameters, setting a quantity threshold value, downloading sub-videos based on the video parameters and the quantity threshold value and caching the sub-videos;
and the video playing module is used for sequentially playing the cached sub videos and deleting the played sub videos until the playing of all the sub videos is completed.
7. The video on-line playing system of network on-demand set top box of claim 6, wherein: the video segmentation module is specifically used for:
the method comprises the steps that a server sets a time length threshold, all videos supported to be played by a network on-demand set top box are divided based on the time length threshold, a plurality of sub videos are obtained, and video parameters including a segment index, a segment current time stamp, a segment path and a segment name are set for each sub video;
the format of the fragment name is video name+fragment index.
8. The video on-line playing system of network on-demand set top box of claim 6, wherein: the on-demand module is specifically used for:
the network on-demand set top box sends a video acquisition request carrying a video name to the server through a socket based on an on-demand instruction input by a remote controller or an intelligent terminal.
9. The video on-line playing system of network on-demand set top box of claim 6, wherein: the M3U8 file sending module is specifically configured to:
the server analyzes the received video acquisition request to obtain a video name, retrieves corresponding sub-videos from a database based on the video name, generates an M3U8 file based on video parameters carried by each sub-video, and sends the M3U8 file to a network on-demand set top box in real time through a socket.
10. The video on-line playing system of network on-demand set top box of claim 6, wherein: the sub video cache module is specifically configured to:
the network on demand set top box analyzes the received M3U8 file to obtain video parameters, sets a quantity threshold, monitors whether the number of the cached video parameters reaches the quantity threshold in real time, and if so, stops caching the new sub-video; if not, the sub-video is downloaded in sequence for buffering based on the fragment index and the fragment path carried by the video parameters.
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| CN202310756848.6A CN116886979A (en) | 2023-06-26 | 2023-06-26 | Online video playing method and system for network on-demand set top box |
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