CN108337574A - A kind of flow-medium transmission method and device, system, server, terminal - Google Patents
A kind of flow-medium transmission method and device, system, server, terminal Download PDFInfo
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- CN108337574A CN108337574A CN201710044976.2A CN201710044976A CN108337574A CN 108337574 A CN108337574 A CN 108337574A CN 201710044976 A CN201710044976 A CN 201710044976A CN 108337574 A CN108337574 A CN 108337574A
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26241—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the time of distribution, e.g. the best time of the day for inserting an advertisement or airing a children program
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
Abstract
The invention discloses a kind of flow-medium transmission method and device, system, server, terminals, including：The attribute information of each content fragment of video content is sent to terminal by server；The video content request message that server receiving terminal is sent, the video content request message includes at least following information of each content fragment to be asked：Segmental identification information, precedence information, push finishing time information；Server reads corresponding content fragment according to the segmental identification information, and the content fragment of reading is sent to terminal according to the precedence information；During server sends the content fragment, is detected according to the push finishing time information when can not object content fragment be sent to terminal, cancel the transmission of the object content fragment.
Description
Technical field
The present invention relates to the flow-medium transmission method and device of stream media technology field more particularly to a kind of panoramic video,
System, server, terminal.
Background technology
Dynamic self-adapting stream based on hypertext transfer protocol (HTTP, HyperText Transfer Protocol)
(DASH, Dynamic Adaptive Streaming over HTTP) is a kind of dynamic self-adapting Streaming Media biography that HTTP is provided
Defeated agreement.In DASH agreements, media content is cut into multiple segments, and the duration of each segment is generally several seconds.Terminal
These segments are obtained one by one by sending HTTP request to server, and then each segment is decoded and is played.Work as piece
Section time length comparison hour, the number of HTTP request can be caused especially more, efficiency of transmission is very low.For this purpose, there is full duplex
DASH is serviced, and terminal can be in a HTTP request, it is desirable that server transmits multiple segments, to reduce the number of HTTP request
Mesh, while server can also continuously transmit the content of multiple segments, so as to avoid transmission control protocol (TCP,
Transmission Control Protocol) slow turn-on the problem of, improve efficiency of transmission.
On the other hand, with the fast development of virtual reality (VR, Virtual Reality) technology, panoramic video is answered
With also more and more extensive, this brings the very strong video tastes of the sense of reality to user.But the valid pixel in unit area
It is worth under identical precondition, the data volume of the data volume of panoramic video considerably beyond common single-view videos.In this way,
In the case that line is watched, it is necessary to which higher transmission bandwidth, this gives Content Delivery Network (CDN, Content Delivery
Networks bigger pressure) is brought.
In order to solve this problem, when coding and decoding video, the encoding and decoding technique based on tile (tile) is introduced,
Here, tile refers to the rectangular area that encoding and decoding can be independently carried out in frame.In this manner, the picture of a panoramic video
It is divided into multiple independent regions.Terminal only needs to obtain the video data in region corresponding to user's current view point, is solved
Code plays.To each region, can also further encode out multiple code checks, so as to user according to view region not
Same, network bandwidth and the decoding capability of oneself select most suitable content.Such as view region, select most high-definition
Content, for the region on viewpoint periphery, the content of clarity in selection, and for the content of blind spot region, then it is low clear to select
The content of degree.
But it is limited in bandwidth, either in the case where network congestion or bandwidth have fluctuation, in these of terminal request
Hold segment, still can exceed that network bandwidth, lead to the broadcasting interim card of user side.Although user can when detecting interim card,
The transmission of the certain contents of order cancellation is retransmited, but when the generation of general networking congestion, two-way communication can all be affected, this can
It can cause server side that cannot timely receive the order that user cancels content transmission.
Invention content
In order to solve the above technical problems, an embodiment of the present invention provides a kind of flow-medium transmission method and device, system, clothes
Business device, terminal, can provide preferable video tastes to the user in the case of finite bandwidth.
Flow-medium transmission method provided in an embodiment of the present invention, including：
The attribute information of each content fragment of video content is sent to terminal by server；
The video content request message that server receiving terminal is sent, the video content request message includes each wait for
At least following information of the content fragment of request：Segmental identification information, precedence information, push finishing time information；
Server reads corresponding content fragment according to the segmental identification information, will be read according to the precedence information
Content fragment be sent to terminal；
During server sends the content fragment, being detected according to the push finishing time information can not incite somebody to action
When object content fragment is sent to terminal, cancel the transmission of the object content fragment.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The uniform resource identifier (URI) of content fragment；Or
Person,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
It is described that the content fragment of reading is sent to terminal according to the precedence information in the embodiment of the present invention, including：
According to the precedence information, the content fragment of reading is sent to terminal by the sequence of priority from high to low.
In the embodiment of the present invention, the method further includes：
During server sends the content fragment, the actual transfer rate and/or network of fragment content are detected
Condition information；
Judged in target according to the actual transfer rate and/or Network status information, and push finishing time information
Hold whether fragment can be successfully sent to terminal.
The flow-medium transmission method that another embodiment of the present invention provides, including：
Terminal obtains the attribute information of each content fragment of video content from server；
The attribute information of each content fragment of the terminal based on the video content, determines content fragment to be received, and
Video content request message is sent to server based on the content fragment to be received, is wrapped in the video content request message
Include at least following information of each content fragment to be received：Segmental identification information, precedence information, push deadline letter
Breath；
Terminal receives each content fragment that server is sent according to the precedence information, wherein receives institute in terminal
During stating content fragment, if server, which detects, to be sent to terminal by object content fragment, cancel the mesh
Mark the reception of content fragment.
In the embodiment of the present invention, the attribute information of each content fragment of the terminal based on the video content determines
Content fragment to be received, including：
The attribute information of each content fragment of the terminal based on the video content, and combine the following contents at least it
One, determine content fragment to be received：
View information, network bandwidth information, predetermined policy.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the terminal receives each content point that server is sent according to the precedence information
Piece, including：
Terminal receives each content fragment that server is sent according to the sequence of priority from high to low.
Streaming media device provided in an embodiment of the present invention, is applied to server side, and described device includes：
Transmission unit, for the attribute information of each content fragment of video content to be sent to terminal；
Receiving unit, the video content request message for receiving terminal transmission are wrapped in the video content request message
Include at least following information of each content fragment to be asked：Segmental identification information, precedence information, push deadline letter
Breath；
Reading unit, for reading corresponding content fragment according to the segmental identification information；
The transmission unit is additionally operable to that the content fragment of reading is sent to terminal according to the precedence information；
Cancel unit, for during sending the content fragment, being detected according to the push finishing time information
To when can not object content fragment be sent to terminal, cancel the transmission of the object content fragment.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the transmission unit is specifically used for：According to the precedence information, by the content of reading
Fragment is sent to terminal by the sequence of priority from high to low.
In the embodiment of the present invention, described device further includes：
Detection unit, for during sending the content fragment, detect the actual transfer rate of fragment content with/
Or Network status information；Judged according to the actual transfer rate and/or Network status information, and push finishing time information
Whether object content fragment can be successfully sent to terminal.
The streaming media device that another embodiment of the present invention provides, is applied to end side, and described device includes：
Receiving unit, the attribute information of each content fragment for obtaining video content from server；
Determination unit is used for the attribute information of each content fragment based on the video content, determines to be received interior
Hold fragment；
Transmission unit, for sending video content request message, institute to server based on the content fragment to be received
State at least following information that video content request message includes each content fragment to be received：It is segmental identification information, preferential
Grade information, push finishing time information；
The receiving unit is additionally operable to receive each content fragment that server is sent according to the precedence information,
In, during receiving the content fragment, if server, which detects, to be sent to terminal by object content fragment,
Cancel the reception of the object content fragment.
In the embodiment of the present invention, the determination unit is specifically used for：Each content fragment based on the video content
At least one of attribute information, and combine the following contents, determine content fragment to be received：
View information, network bandwidth information, predetermined policy.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the receiving unit is specifically used for：Server is received according to priority from high to low suitable
Each content fragment that sequence is sent.
Server provided in an embodiment of the present invention, including processor and memory are stored with computer in the memory
Executable instruction, when the processor executes the computer executable instructions, the processor is used to execute the stream
Media transmission method.
Terminal provided in an embodiment of the present invention, including processor and memory, being stored with computer in the memory can
It executes instruction, when the processor executes the computer executable instructions, the processor is used to execute the stream matchmaker
Body transmission method.
Stream media transmission system provided in an embodiment of the present invention includes the server and the terminal.
In the technical solution of the embodiment of the present invention, server sends the attribute information of each content fragment of video content
To terminal；The video content request message that server receiving terminal is sent, the video content request message includes each wait for
At least following information of the content fragment of request：Segmental identification information, precedence information, push finishing time information；Server
Corresponding content fragment is read according to the segmental identification information, sends the content fragment of reading according to the precedence information
To terminal；During server sends the content fragment, being detected according to the push finishing time information can not incite somebody to action
When object content fragment is sent to terminal, cancel the transmission of the object content fragment.Using the technical side of the embodiment of the present invention
Case, server can according to priority cancel part content to be sent in the case where cannot be satisfied the requirement of terminal delivery time
Fragment avoids the broadcasting interim card of end side as far as possible to ensure the content fragment transmission of high priority.
Description of the drawings
Attached drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is the flow diagram one of the flow-medium transmission method of the embodiment of the present invention；
Fig. 2 is the flow diagram two of the flow-medium transmission method of the embodiment of the present invention；
Fig. 3 is the system schematic of the embodiment of the present invention；
Fig. 4 is the flow diagram three of the flow-medium transmission method of the embodiment of the present invention；
Fig. 5 is the flow diagram four of the flow-medium transmission method of the embodiment of the present invention；
Fig. 6 is the schematic diagram one of the Video coding of the embodiment of the present invention；
Fig. 7 be the embodiment of the present invention according to user's viewpoint, select the schematic diagram one of fragment to be pushed；
Fig. 8 is the schematic diagram two of the Video coding of the embodiment of the present invention；
Fig. 9 be the embodiment of the present invention according to user's viewpoint, select the schematic diagram two of fragment to be pushed；
Figure 10 be the embodiment of the present invention according to user's viewpoint, select the schematic diagram three of fragment to be pushed；
Figure 11 is the structure composition schematic diagram one of the streaming media device of the embodiment of the present invention；
Figure 12 is the structure composition schematic diagram two of the streaming media device of the embodiment of the present invention.
Specific implementation mode
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings to this hair
The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used for limiting the embodiment of the present invention.
In the technical solution of the embodiment of the present invention, by specifying the required content transmitted point in video content request message
Segmental identification information, precedence information, the push finishing time information of piece, so that server cannot be satisfied the terminal delivery time
In the case of it is required that, according to priority cancel part content fragment to be sent, it is ensured that the transmission of the content fragment of high priority, to the greatest extent
It can be avoided that the broadcasting interim card of end side.
Fig. 1 is the flow diagram one of the flow-medium transmission method of the embodiment of the present invention, the streaming media in this example
Method is applied to server side, as shown in Figure 1, the flow-medium transmission method includes the following steps：
Step 101：The attribute information of each content fragment of video content is sent to terminal by server.
Step 102：The video content request message that server receiving terminal is sent is wrapped in the video content request message
Include at least following information of each content fragment to be asked：Segmental identification information, precedence information, push deadline letter
Breath.
Step 103：Server reads corresponding content fragment according to the segmental identification information, believes according to the priority
The content fragment of reading is sent to terminal by breath；During server sends the content fragment, pushed according to described
It is detected at temporal information when can not object content fragment be sent to terminal, cancels the transmission of the object content fragment.
In the embodiment of the present invention, video content can be panoramic video content.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In said program, content fragment refers to supporting independent decoded video area in video data in different time periods.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
It is described that the content fragment of reading is sent to terminal according to the precedence information in the embodiment of the present invention, including：
According to the precedence information, the content fragment of reading is sent to terminal by the sequence of priority from high to low.
In the embodiment of the present invention, the method further includes：
During server sends the content fragment, the actual transfer rate and/or network of fragment content are detected
Condition information；
Judged in target according to the actual transfer rate and/or Network status information, and push finishing time information
Hold whether fragment can be successfully sent to terminal.
Fig. 2 is the flow diagram two of the flow-medium transmission method of the embodiment of the present invention, the streaming media in this example
Method is applied to end side, as shown in Fig. 2, the flow-medium transmission method includes the following steps：
Step 201：Terminal obtains the attribute information of each content fragment of video content from server.
Step 202：The attribute information of each content fragment of the terminal based on the video content, determines content to be received
Fragment, and video content request message, the video content request are sent to server based on the content fragment to be received
Message includes at least following information of each content fragment to be received：Segmental identification information, precedence information, push are completed
Temporal information.
Step 203：Terminal receives each content fragment that server is sent according to the precedence information, wherein at end
During end receives the content fragment, if server, which detects, to be sent to terminal by object content fragment, take
Disappear the reception of the object content fragment.
In the embodiment of the present invention, the attribute information of each content fragment of the terminal based on the video content determines
Content fragment to be received, including：
The attribute information of each content fragment of the terminal based on the video content, and combine the following contents at least it
One, determine content fragment to be received：
View information, network bandwidth information, predetermined policy.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the terminal receives each content point that server is sent according to the precedence information
Piece, including：
Terminal receives each content fragment that server is sent according to the sequence of priority from high to low.
The flow-medium transmission method of the embodiment of the present invention is described in further detail with reference to concrete application scene.
Fig. 3 gives the system schematic of the embodiment of the present invention.Terminal obtains the description text of video content from server side
M3u8 texts in MPD file or HTTP live streaming medias (HLS, HTTP Live Streaming) in part, such as DASH
Part etc..Then the current view point etc. of the fragment content information and user described in it determines in the fragment for needing to obtain
Hold.Then according to current viewing strategy, these fragment contents are according to priority grouped.Then it sends and pushes to server
Request, indicates which fragment needed to send, the precedence information of fragment and these fragments need to be completely transferred to end in request
The time at end.Detailed process is referring to Fig. 4.After server side receives the push request of terminal, by the priority specified in request, push away
Send fragment.During push, server calculates the push state of current slice in real time, current to judge whether to complete in time
The transmission of fragment.After the push for completing a fragment, according to the push state of current slice, judge whether to complete in time
The push of next fragment.If cannot complete to push in time, cancel the push of corresponding fragment.Detailed process is referring to Fig. 5.
About different viewings strategy under, to priority and push the time use, for specific embodiment
It is bright.
In one embodiment, the coding mode of Sub-region and hierarchical is used to content, as shown in Figure 6.Different Tile points
Area has corresponded to different visual angle/spaces.Different layerings have then corresponded to different video qualities.Such as Primary layer 401 is one
The panoramic video of lowest resolution, a frame just correspond to a complete panoramic picture, i.e., only there are one Tile subregions, number is
4011.Provide two enhancement layers.Wherein, the first enhancement layer 402 provides an intermediate resolution on the basis of Primary layer
Panoramic video, and use the encoding and decoding technique based on tile, the picture of a panoramic video be divided into multiple independences
Region, such as number 4021~4023 is exactly several Tile therein.Second enhancement layer 403 is on the basis of the first enhancement layer
On, high-resolution panoramic video is provided, the encoding and decoding technique based on tile is equally also used, by panoramic video
Picture has been divided into multiple independent regions, such as number 4031 is exactly one of Tile.Each Tile of each code check
The video of subregion all presses playback period, is cut into the fragment of fixed length time section, such as every 2 seconds fragments.For ease of description,
Arrange for some reproduction time T, some layering, some Tile subregion video slicing, identified using following rule every
A fragment：" layered identification/Tile numbers/reproduction time ".Wherein layered identification increases Primary layer, the first enhancement layer, second
Strong layer, value are respectively layer0, layer1, layer2.For example, the Tile that the first enhancement layer number is 4021, in the T0 times
Fragment, mark just be layer1/4021/T0.Relevant information is recorded in the description file of content.
As shown in fig. 7, terminal determines view region 5A, viewpoint fringe region 5B and blind spot based on current user's viewpoint
Region 5C.And according to the relevant information and current viewing strategy recorded in content descriptor file, it is interior to determine that needs obtain
Hold fragment and corresponding priority.For example, in the present embodiment, viewing strategy ensures user in viewpoint change to be preferential,
There is not blank screen.Then as shown in fig. 7, highest priority should be just the corresponding Primary layer in the regions 5C 501 subregion (corresponding diagrams
4011 in 6).The fragment prioritised transmission, to ensure that end side can obtain a panoramic video, no matter how user, which switches, regards
Point can decode according to this panoramic video and play out corresponding picture, blank screen do not occur.What preferentially level was high is exactly first
Subregion corresponding with viewpoint fringe region 5B 503,504,505 (correspond to Fig. 6 4021,4022,4023) in enhancement layer.Terminal
When the video data overlay of the fragment of first enhancement layer and Primary layer is played, the figure of intermediate resolution can be provided to the user
Picture.Priority it is minimum be exactly fragment corresponding with view region 5A in the second enhancement layer, i.e., 502 (correspond to Fig. 6 4031).
When terminal plays the second enhancement layer and the video data overlay of the first enhancement layer and Primary layer, high score can be provided to the user
The image of resolution.
Terminal is submitted in the push request of server, specifies this period to need the fragment content pulled down, that is, next
A period needs the content played.Such as at the T0 moment, terminal submits to server and the fragment pushed before the T1 periods is needed to refer to
In order, it is necessary to the information such as specified fragment and priority as shown in table 1 below, delivery time.
Table 1
Server, to the fragment of request, is according to priority arranged after the T0 moment, the push request for receiving terminal transmission
Sequence.It is sequentially transmitted from high to low.After reaching the T1 time starteds, then the fragment not yet passed is abandoned, and notify terminal, related fragment
It has been cancelled transmission.
In another embodiment, research content is as last embodiment.But in the push request that terminal is sent, only
According to current view point, the window information needed, video quality (being hierarchical information herein) and corresponding priority are specified.I.e.
Terminal is submitted in the push instruction of server, and specified information as shown in table 2 below is needed, wherein the push deadline is sky,
It indicates before not receiving new form push instruction, server needs to push the content of current window always.
| Window information | Hierarchical information | Push the deadline | Priority |
| The identification information of form 5A | layer2 | - | It is low |
| The identification information of form 5B | layer1 | - | In |
| The identification information of form 5C | layer0 | - | It is high |
Table 2
The wherein identification information of form, for showing direction, the range of form, Ke Yishi：
1) azimuth and pitch angle of the central point of VR video windows in VR video spherical coordinates.In addition VR videos regard
The width and elevation information of window.Alternatively,
2) four edges of VR video windows correspond to the left and right azimuth in VR video spherical coordinates and upper and lower pitching
Angle.
The form identification information given, corresponding window need to cover Tile points of corresponding target in panoramic video
Area.
After server receives push instruction, need, according to the relevant information in content descriptor file, to obtain corresponding point
Piece according to priority pushes the fragment of corresponding form to terminal.Such as in the case where bandwidth is enough, then by above three form
Content is all pushed to terminal.In the case that bandwidth is inadequate, then from low to high according to priority, the content push of part visual window is abandoned.
In another embodiment, the mode that subregion adds code check coding is used to content.As shown in Figure 8.It provides
The video of one low bit- rate 601, a medium code checks 602 and a high code check 603 has been all made of the subregion based on tile and has compiled solution
Code technology.For each code check, panorama has been divided into 18 Tile subregions.For ease of subsequent description, scheming
In these Tile are numbered, respectively 1~18.The video of each Tile subregions of each code check, all presses playback period, cuts
It is divided into the fragment of fixed length time section, such as every 10 seconds fragments.For ease of description, agreement for some playback period T, some
The fragment of code check, some Tile subregion identifies each fragment using following rule：" code check mark/Tile numbers/broadcasting
Period ".For wherein code check mark for high, medium and low code check, value is respectively high, mid, low.For example, in T0 periods, low code
The fragment of rate, the 6th Tile, mark are just low/6/T0.Relevant information is recorded in the description file of content.
In this embodiment, viewing viewpoint belong to content director preassign, user cannot or seldom actively switching regards
The scenes such as point, such as live streaming.Therefore strategy is watched as the preferential video quality for ensureing user's view region.As shown in figure 9, wanting
Ask the image in view region 701 most clear, the image in viewpoint fringe region 702 time is clear, and other areas in addition to this
Domain is blind spot region, then requires minimum.Therefore, the regions 7A need to obtain the fragment of high code check content, i.e. 603 correspondences are divided in Fig. 8
The fragment in area.These contents have highest priority.What preferentially level was high is exactly to correspond to point in the regions 7B in middle code check content
Piece.Priority it is minimum be exactly to correspond to the fragment in the regions 7C in low bit- rate content.Such as at the T0 moment, terminal knows user
It is 701 in the viewpoint at T1 moment, then terminal is submitted to server and needed in the fragment pushed before the T1 periods instruction, it is necessary to
The information such as specified fragment and priority as shown in table 3 below, delivery time.
Table 3
In another embodiment, terminal specifies the content of follow-up several playback periods in primary push request.Here it is
For the sake of simplicity, the coding mode of multi code Rate of Chinese character or layering is not used, only by taking the panoramic video of solid size rate as an example.And it only distinguishes and regards
Point region and non-view region.As shown in Figure 10, coding still uses the subregion encoding and decoding technique based on tile.One panorama
Picture has been partitioned into 15 Tile subregions.For ease of subsequent description, these Tile are numbered in figure, respectively 1
~15.The video of each Tile subregions, all presses playback period, is cut into the fragment of fixed length time section, for example, every 10 seconds one point
Piece.For ease of description, fragment of the agreement for some playback period T, some Tile subregion, is identified every using following rule
A fragment：Tile numbers/playback period.For example, in T0 periods, the fragment of the 6th Tile, mark is just 6/T0.
In this illustration, viewpoint can also be switched to 802 from 801.Wherein, in first cycle T 1, viewpoint is right 801
It is 7 to answer the Tile partition numbers of view region.Second period T2, viewpoint correspond to the Tile partition numbers of view region 802
It is 9.Therefore terminal is submitted in the push request of server, and specified lower two periods need the fragment content pulled down, and corresponding
The push deadline and priority.As shown in table 4 below.
Table 4
The deadline is wherein pushed, relative time can be used, absolute time can also be used.Priority is then as preceding several
Described in embodiment, depending on the viewing strategy of user.
Server pushes the fragment in the T1 periods first after the T0 moment, the push request for receiving terminal transmission.To multiple
Fragment is according to priority ranked up.After reaching T1 start times, then abandon in the period, the fragment not yet passed, and notify
Terminal, related fragment have been cancelled transmission.Then server starts according to priority, to push the fragment in the T2 periods.
Fig. 4 is the flow diagram three of the flow-medium transmission method of the embodiment of the present invention, as shown in figure 4, the Streaming Media
Transmission method includes the following steps：
Step 401：Terminal determines current user's viewpoint.
Step 402：Terminal determines current area-of-interest, normal areas and region of loseing interest in.
Step 403：Terminal determines that current period, above-mentioned different zones need the part obtained according to content descriptor file
The timeslicing parameters of video.
Step 404：Terminal is combined according to scheduled strategy, by fragment by different priorities, and sending push to server asks
It asks, and carries content prioritization in the request and complete the parameters such as delivery time.
Step 405：Terminal receives fragment of the server according to request push.
Step 406：Terminal merges the fragment received, renders in next cycle, forms panoramic video, holds
Row step 401.
Fig. 5 is the flow diagram four of the flow-medium transmission method of the embodiment of the present invention, as shown in figure 5, the Streaming Media
Transmission method includes the following steps：
Step 501：Server side receives the push request of terminal.
Step 502：Server side parses burst information to be pushed and corresponding priority in request, completes to pass
The parameters such as the time sent.
Step 503：Server is by given priority, from high to low, starts to push fragment.
Step 504：During fragment push, the rate currently pushed is calculated.
Step 505：The push for often completing a fragment, according to the practical push rate of calculating, assessment is next to be waited pushing
Fragment whether can be sent to terminal within the scheduled completion delivery time.If it is then starting pushing away for next fragment
It send, otherwise just cancels the push of next fragment；Execute step 501.
Figure 11 is the structure composition schematic diagram one of the streaming media device of the embodiment of the present invention, is applied to server side,
Described device includes：
Transmission unit 1101, for the attribute information of each content fragment of video content to be sent to terminal；
Receiving unit 1102, the video content request message for receiving terminal transmission, the video content request message
Include at least following information of each content fragment to be asked：Segmental identification information, precedence information, push deadline
Information；
Reading unit 1103, for reading corresponding content fragment according to the segmental identification information；
The transmission unit 1101 is additionally operable to that the content fragment of reading is sent to terminal according to the precedence information；
Cancel unit 1104, is used for during sending the content fragment, according to the push finishing time information
It detects when can not object content fragment be sent to terminal, cancels the transmission of the object content fragment.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the transmission unit 1101 is specifically used for：According to the precedence information, by reading
Content fragment is sent to terminal by the sequence of priority from high to low.
In the embodiment of the present invention, described device further includes：
Detection unit 1105, the actual transmissions speed for during sending the content fragment, detecting fragment content
Rate and/or Network status information；According to the actual transfer rate and/or Network status information, and push deadline letter
Breath judges whether object content fragment can be successfully sent to terminal.
It will be appreciated by those skilled in the art that the realization function of each unit in streaming media device shown in Figure 11 can
Understand with reference to the associated description of aforementioned flow-medium transmission method.The work(of each unit in streaming media device shown in Figure 11
It can be realized by running on the program on processor, can also be realized by specific logic circuit.
The embodiment of the present invention also provides a kind of server, and the server includes processor and memory, the memory
In be stored with computer executable instructions, when the processor executes the computer executable instructions, the processor is used
In the flow-medium transmission method described in execution Fig. 1.
Figure 12 is the structure composition schematic diagram two of the streaming media device of the embodiment of the present invention, is applied to end side, institute
Stating device includes：
Receiving unit 1201, the attribute information of each content fragment for obtaining video content from server；
Determination unit 1202 is used for the attribute information of each content fragment based on the video content, determines to be received
Content fragment；
Transmission unit 1203 disappears for sending video content request to server based on the content fragment to be received
Breath, the video content request message includes at least following information of each content fragment to be received：Segmental identification information,
Precedence information, push finishing time information；
The receiving unit 1201 is additionally operable to receive each content point that server is sent according to the precedence information
Piece, wherein during receiving the content fragment, if server, which detects, to be sent to end by object content fragment
End, then cancel the reception of the object content fragment.
In the embodiment of the present invention, the determination unit 1202 is specifically used for：Each content based on the video content point
At least one of the attribute information of piece, and combine the following contents, determine content fragment to be received：
View information, network bandwidth information, predetermined policy.
In the embodiment of the present invention, the attribute information of each content fragment of the video content includes at least one of：
The video quality that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of information, each content fragment.
In the embodiment of the present invention, the segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
In the embodiment of the present invention, the video quality information of the content fragment is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
In the embodiment of the present invention, the receiving unit 1201 is specifically used for：Receive server according to priority from high to low
Sequence send each content fragment.
It will be appreciated by those skilled in the art that the realization function of each unit in streaming media device shown in Figure 12 can
Understand with reference to the associated description of aforementioned flow-medium transmission method.The work(of each unit in streaming media device shown in Figure 12
It can be realized by running on the program on processor, can also be realized by specific logic circuit.
The embodiment of the present invention also provides a kind of terminal, and the terminal includes processor and memory, is deposited in the memory
Computer executable instructions are contained, when the processor executes the computer executable instructions, the processor is for holding
Flow-medium transmission method described in row Fig. 2.
In addition, the embodiment of the present invention also provides a kind of stream media transmission system, which includes server and terminal,
In, server is used to execute the stream media transmission system described in Fig. 1, and terminal is used to execute the flow-medium transmission method described in Fig. 2.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention can be used can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (27)
1. a kind of flow-medium transmission method, which is characterized in that the method includes：
The attribute information of each content fragment of video content is sent to terminal by server；
The video content request message that server receiving terminal is sent, the video content request message include each waiting asking
Content fragment at least following information：Segmental identification information, precedence information, push finishing time information；
Server reads corresponding content fragment according to the segmental identification information, will be in reading according to the precedence information
Hold fragment and is sent to terminal；
During server sends the content fragment, being detected according to the push finishing time information can not be by target
When content fragment is sent to terminal, cancel the transmission of the object content fragment.
2. flow-medium transmission method according to claim 1, which is characterized in that each content fragment of the video content
Attribute information include at least one of：
The video quality letter that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of breath, each content fragment.
3. flow-medium transmission method according to claim 1, which is characterized in that
The segmental identification information includes：The uniform resource identifier URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
4. flow-medium transmission method according to claim 3, which is characterized in that the video quality information of the content fragment
At least it is one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
5. flow-medium transmission method according to claim 1, which is characterized in that described to be read according to the precedence information
The content fragment taken is sent to terminal, including：
According to the precedence information, the content fragment of reading is sent to terminal by the sequence of priority from high to low.
6. flow-medium transmission method according to claim 1, which is characterized in that the method further includes：
During server sends the content fragment, the actual transfer rate and/or Network status of fragment content are detected
Information；
Judge object content point according to the actual transfer rate and/or Network status information, and push finishing time information
Whether piece can be successfully sent to terminal.
7. a kind of flow-medium transmission method, which is characterized in that the method includes：
Terminal obtains the attribute information of each content fragment of video content from server；
The attribute information of each content fragment of the terminal based on the video content, determines content fragment to be received, and be based on
The content fragment to be received sends video content request message to server, and the video content request message includes each
At least following information of a content fragment to be received：Segmental identification information, precedence information, push finishing time information；
Terminal receives each content fragment that server is sent according to the precedence information, wherein is received in described in terminal
During holding fragment, if server, which detects, to be sent to terminal by object content fragment, cancel in the target
Hold the reception of fragment.
8. flow-medium transmission method according to claim 7, which is characterized in that the terminal is based on the video content
The attribute information of each content fragment determines content fragment to be received, including：
At least one of the attribute information of each content fragment of the terminal based on the video content, and combine the following contents, really
Fixed content fragment to be received：
View information, network bandwidth information, predetermined policy.
9. flow-medium transmission method according to claim 7, which is characterized in that each content fragment of the video content
Attribute information include at least one of：
The video quality letter that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of breath, each content fragment.
10. flow-medium transmission method according to claim 7, which is characterized in that
The segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
11. flow-medium transmission method according to claim 10, which is characterized in that the video quality of the content fragment is believed
Breath is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
12. flow-medium transmission method according to claim 7, which is characterized in that the terminal receives server according to institute
Each content fragment of precedence information transmission is stated, including：
Terminal receives each content fragment that server is sent according to the sequence of priority from high to low.
13. a kind of streaming media device, it is applied to server side, which is characterized in that described device includes：
Transmission unit, for the attribute information of each content fragment of video content to be sent to terminal；
Receiving unit, the video content request message for receiving terminal transmission, the video content request message includes each
At least following information of a content fragment to be asked：Segmental identification information, precedence information, push finishing time information；
Reading unit, for reading corresponding content fragment according to the segmental identification information；
The transmission unit is additionally operable to that the content fragment of reading is sent to terminal according to the precedence information；
Cancel unit, for during sending the content fragment, nothing to be detected according to the push finishing time information
When object content fragment is sent to terminal by method, cancel the transmission of the object content fragment.
14. streaming media device according to claim 13, which is characterized in that each content of the video content point
The attribute information of piece includes at least one of：
The video quality letter that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of breath, each content fragment.
15. streaming media device according to claim 13, which is characterized in that
The segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
16. streaming media device according to claim 15, which is characterized in that the video quality of the content fragment is believed
Breath is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
17. streaming media device according to claim 13, which is characterized in that the transmission unit is specifically used for：It presses
According to the precedence information, the content fragment of reading is sent to terminal by the sequence of priority from high to low.
18. streaming media device according to claim 13, which is characterized in that described device further includes：
Detection unit, for during sending the content fragment, detecting the actual transfer rate and/or net of fragment content
Network condition information；Judge target according to the actual transfer rate and/or Network status information, and push finishing time information
Whether content fragment can be successfully sent to terminal.
19. a kind of streaming media device, it is applied to end side, which is characterized in that described device includes：
Receiving unit, the attribute information of each content fragment for obtaining video content from server；
Determination unit is used for the attribute information of each content fragment based on the video content, determines content to be received point
Piece；
Transmission unit, it is described to regard for sending video content request message to server based on the content fragment to be received
Frequency content request message includes at least following information of each content fragment to be received：Segmental identification information, priority letter
Breath, push finishing time information；
The receiving unit is additionally operable to receive each content fragment that server is sent according to the precedence information, wherein
During receiving the content fragment, if server, which detects, to be sent to terminal by object content fragment, cancel
The reception of the object content fragment.
20. streaming media device according to claim 19, which is characterized in that the determination unit is specifically used for：Base
At least one of in the attribute information of each content fragment of the video content, and combine the following contents, it determines to be received
Content fragment：
View information, network bandwidth information, predetermined policy.
21. streaming media device according to claim 19, which is characterized in that each content of the video content point
The attribute information of piece includes at least one of：
The video quality letter that the encoding and decoding partition information of each content fragment, each content fragment are supported in video content
The Viewing-angle information of breath, each content fragment.
22. streaming media device according to claim 19, which is characterized in that
The segmental identification information includes：The URI of content fragment；Alternatively,
The segmental identification information includes：The area information of content fragment, the video quality information of content fragment；Alternatively,
The segmental identification information includes：The window information of content fragment, the video quality information of content fragment.
23. streaming media device according to claim 22, which is characterized in that the video quality of the content fragment is believed
Breath is at least one of the following：
The hierarchical information of the code check of content fragment, the resolution ratio of content fragment, content fragment.
24. streaming media device according to claim 19, which is characterized in that the receiving unit is specifically used for：It connects
Receive each content fragment that server is sent according to the sequence of priority from high to low.
25. a kind of server, which is characterized in that the server includes processor and memory, is stored in the memory
Computer executable instructions, when the processor executes the computer executable instructions, the processor is used for right of execution
Profit requires 1-6 any one of them flow-medium transmission methods.
26. a kind of terminal, which is characterized in that the terminal includes processor and memory, and calculating is stored in the memory
Machine executable instruction, when the processor executes the computer executable instructions, the processor is wanted for perform claim
Seek 7-12 any one of them flow-medium transmission methods.
27. a kind of stream media transmission system, which is characterized in that the system comprises the servers and power described in claim 25
Profit requires the terminal described in 26.
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| CN201710044976.2A CN108337574A (en) | 2017-01-20 | 2017-01-20 | A kind of flow-medium transmission method and device, system, server, terminal |
| PCT/CN2018/071959 WO2018133709A1 (en) | 2017-01-20 | 2018-01-09 | Method, device and system for streaming media transmission, server and terminal |
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