CN104093089B - Cinema program live telecasting system and method - Google Patents
Cinema program live telecasting system and method Download PDFInfo
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- CN104093089B CN104093089B CN201410360798.0A CN201410360798A CN104093089B CN 104093089 B CN104093089 B CN 104093089B CN 201410360798 A CN201410360798 A CN 201410360798A CN 104093089 B CN104093089 B CN 104093089B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005538 encapsulation Methods 0.000 claims description 30
- 238000004806 packaging method and process Methods 0.000 abstract 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a cinema program live telecasting system and method. The system comprises a collecting and compressing device, a packaging and sending device, an unpackaging and sending device, a playing server and a projection machine. The collecting and compressing device is used for collecting a program code stream, carrying out compressed encoding on the program code stream and obtaining a program code stream obtained after compressed encoding is carried out. The packaging and sending device is used for respectively packaging videos and audios in the program code stream obtained by the collecting and compressing device after compressed encoding is carried out to form MXF files, packaging the MXF files to form a TS and sending the TS to the unpackaging and sending device. The unpackaging and sending device is used for unpackaging the received TS to obtain the MXF files and sending the MXF files to the playing server, and is arranged in a cinema. The playing server is used for unpackaging and decompressing the received MXF files to obtain the program code stream and sending the program code stream to the projection machine, and is arranged in a cinema hall of the cinema. The projection machine is used for projecting the program code stream sent by the playing server.
Description
Technical field
The present invention relates to multimedia technology field, and in particular to a kind of system and method for movie theatre programme televised live.
Background technology
The existing video playback system of movie theatre, as shown in figure 1, the system is the projection system based on non-real-time file formula,
Film is received by satellite reception subsystem, and the film is directed into into Play Server by hard disk or network, taken by playing
Business device obtains code stream after carrying out decapsulation decompression to which, the bit stream reaches cinematograph projector and plays.
In recent years, movie theatre begins attempt to carry out ball match, 2D the or 3D living broadcast of programs business such as concert, but uses and be based on
The live telecast scheme of stream, the i.e. program data of live telecast through dynamic image expert group (MPEG) compression post package are
Transport Stream (TS) flow, and TS streams are passed through and are transferred to up to movie theatre, as the existing Play Server of movie theatre can not be supported
The MPEG decodings of streaming, therefore a decoder need to be increased by the TS for receiving streams through deblocking at movie theatre end using during this scheme
After dress decompression, through being transferred to up to cinematograph projector.
The content of the invention
The technical problem to be solved is that the live scheme of streaming television can not utilize the existing Play Server of movie theatre,
A decoder need to separately be added in movie theatre, cause the wasting of resources.
For this purpose, in a first aspect, the present invention proposes a kind of system of movie theatre programme televised live, the system includes：
Collect and process device, for gathering program stream, is compressed coding, after obtaining compressed encoding to program stream
Program stream；
Encapsulation dispensing device, for video and audio in the program stream after the compressed encoding that obtains the collect and process device
MXF MXF files are encapsulated as respectively, are that TS flows and TS streams are sent to deblocking transmission dress by the MXF Document encapsulations
Put, the MXF files include video MXF files and audio frequency MXF files；
Deblocking dispensing device, carries out solving TS encapsulation for the TS streams to receiving, obtains MXF files, and MXF files are sent out
Play Server is sent to, the deblocking dispensing device is arranged at movie theatre；
Play Server, carries out solving MXF encapsulation and decompresses for the MXF files to receiving, obtain program stream, and
The program stream is sent to into the projector, the Play Server is arranged at the movie theater of movie theatre；
Projector, for showing the program stream that the Play Server sends.
Preferably, the system also includes：DVB, the DVB are arranged at movie theatre；
TS streams are sent to the DVB by satellite by the encapsulation dispensing device；
The TS streams for receiving are sent to the deblocking dispensing device by the DVB.
Preferably, if movie theatre has multiple movie theaters, each movie theater is provided with Play Server, and the encapsulation sends dress
Put and TS streams are sent to into the Play Server by the way of UDP multicasts.
Preferably, by frame or in units of the second, the video MXF files are with the audio frequency MXF files one by one for the MXF files
Correspondence.
Preferably, if program is 3D programs, the MXF files include left eye MXF files, right eye MXF files and sound
Frequency MXF files, wherein, left eye MXF files include left-eye video MXF files, and right eye MXF files include right eye video MXF files.
Second aspect, the present invention also propose a kind of method based on said system programme televised live, and the method includes：
S1. collect and process device collection program stream, is compressed coding, obtains the section after compressed encoding to program stream
Mesh code stream；
S2. encapsulate dispensing device and video and audio in the program stream after the compressed encoding is encapsulated as into material exchange lattice respectively
Formula MXF file, is that TS flows and TS streams are sent to deblocking dispensing device by the MXF Document encapsulations, and the MXF files include regarding
Frequency MXF files and audio frequency MXF files；
S3. unsealing dispensing device carries out solving TS encapsulation to the TS streams for receiving, and obtains MXF files, and MXF files are sent
To the Play Server of movie theater；
S4. Play Server is carried out solving MXF encapsulation and is decompressed to the MXF files for receiving, and obtains program stream, and will
The program stream is sent to projector；
S5. projector shows the program stream that the Play Server sends.
Preferably, in step s 2, if movie theatre has multiple movie theaters, each movie theater is provided with Play Server, institute
State encapsulation dispensing device and TS streams are sent to into the Play Server by the way of UDP multicasts.
Preferably, in step s 2, the MXF files are by frame or in units of the second, the video MXF files and the audio frequency
MXF files are corresponded.
Preferably, if program is 3D programs, the MXF files in step S2 include that left eye MXF files, right eye MXF are literary
Part and audio frequency MXF files, wherein, left eye MXF files include left-eye video MXF files, and right eye MXF files include right eye video
MXF files.
Preferably, in step s 2, it is described by TS streams be sent to deblocking dispensing device include：TS is flowed and is sent by satellite
To deblocking dispensing device；
In step s3, the deblocking dispensing device receives TS streams by DVB.
Compared to prior art, live data is first encapsulated as existing film packing institute by the method and system that the present invention is provided
Using MXF files, then be encapsulated as TS streams and be transmitted, will be original streaming live file-type of changing into live, can at movie theatre end
TS streams are received by existing satellite receiving system, then directly decapsulated and decompressed by Play Server, utilized
Existing resource, without the need for separately adding equipment.Simultaneously, it is contemplated that movie theatre needs multiple movie theaters to carry out living broadcast of programs simultaneously, and satellite connects
MXF files are sent by the way of UDP multicasts to the Play Server of multiple movie theaters by receipts machine.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are these
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 shows the structure chart of the existing video playback system of movie theatre；
Fig. 2 shows the system construction drawing of movie theatre programme televised live in embodiment 1；
Fig. 3 shows the method flow diagram of movie theatre programme televised live in embodiment 2.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
A part of embodiment, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of making creative work, belongs to the scope of protection of the invention.
Embodiment 1：
The present embodiment discloses a kind of system of movie theatre programme televised live, as shown in Fig. 2 the system includes：
Collect and process device, for gathering program stream, is compressed coding, after obtaining compressed encoding to program stream
Program stream；
Encapsulation dispensing device, for video and audio in the program stream after the compressed encoding that obtains the collect and process device
MXF MXF files are encapsulated as respectively, are that TS flows and TS streams are sent to deblocking transmission dress by the MXF Document encapsulations
Put, the MXF files include video MXF files and audio frequency MXF files；
Deblocking dispensing device, carries out solving TS encapsulation for the TS streams to receiving, obtains MXF files, and MXF files are sent out
Play Server is sent to, the deblocking dispensing device is arranged at movie theatre；
Play Server, carries out solving MXF encapsulation and decompresses for the MXF files to receiving, obtain program stream, and
The program stream is sent to into the projector, the Play Server is arranged at the movie theater of movie theatre；
Projector, for showing the program stream that the Play Server sends.
In concrete application, the system also includes the unshowned DVBs of Fig. 2, and the DVB is arranged at shadow
Institute；
TS streams are sent to the DVB by satellite by the encapsulation dispensing device；
The TS streams for receiving are sent to the deblocking dispensing device by the DVB.
Particularly, if movie theatre has multiple movie theaters, each movie theater is provided with Play Server, and the encapsulation sends dress
Put and TS streams are sent to into the Play Server by the way of UDP multicasts.
Wherein, the MXF files are by frame or in units of the second, one a pair of the video MXF files and the audio frequency MXF files
Should.
Particularly, if program is 3D programs, the MXF files include left eye MXF files, right eye MXF files and sound
Frequency MXF files, wherein, left eye MXF files include left-eye video MXF files, and right eye MXF files include right eye video MXF files.
Embodiment 2：
The present embodiment discloses the method that the system based on above-described embodiment carries out programme televised live, as shown in figure 3, the method bag
Include：
S1. collect and process device collection program stream, is compressed coding, obtains the section after compressed encoding to program stream
Mesh code stream；
S2. encapsulate dispensing device and video and audio in the program stream after the compressed encoding is encapsulated as into film packing respectively
MXF MXF files, are that TS flows and TS streams are sent to deblocking dispensing device, the MXF by the MXF Document encapsulations
File includes video MXF files and audio frequency MXF files；
S3. unsealing dispensing device carries out solving TS encapsulation to the TS streams for receiving, and obtains MXF files, and MXF files are sent
To the Play Server of movie theater；
S4. Play Server is carried out solving MXF encapsulation and is decompressed to the MXF files for receiving, and obtains program stream, and will
The program stream is sent to projector；
S5. projector shows the program stream that the Play Server sends.
In step s 2, if movie theatre has multiple movie theaters, each movie theater is provided with Play Server, and the encapsulation is sent out
Send device that TS streams are sent to the Play Server by the way of UDP multicasts.
In step s 2, the MXF files are by frame or in units of the second, the video MXF files and the audio frequency MXF files
Correspond.
Particularly, if program is 3D programs, the MXF files in step S2 include that left eye MXF files, right eye MXF are literary
Part and audio frequency MXF files, wherein, left eye MXF files include left-eye video MXF files, and right eye MXF files include right eye video
MXF files.
In step s 2, it is described by TS streams be sent to deblocking dispensing device include：TS streams are sent to into deblocking by satellite
Dispensing device；
In step s3, the deblocking dispensing device receives TS streams by DVB.
In the present embodiment, if video MXF files in include 2 frame video contents, corresponding audio files also comprising this 2
The corresponding sound-content of frame video.If 3D programs then right and left eyes be two single files.Video and audio and right and left eyes MXF are literary
Part independence, and by frame or in units of the second, it is easy to video and audio and right and left eyes synchronization when playing.The name form of MXF files such as table 1
It is shown：
1 MXF file designation forms of table
In the present embodiment, in step s 2, if movie theatre there are multiple movie theaters, TS is flowed by the way of UDP multicasts
Multiple movie theaters of movie theatre are sent to, wherein UDP multicast messages include 3 classes：Infomational message, data message, Finish messages, it is each to report
Literary form is as follows：
Infomational message：Verify comprising file size, CRC32.Receiving new infomational message has meaned a upper file
End of transmission, needs startup to receive next time.Infomational message form is as shown in table 2：
2 infomational message form of table
Data message：The side-play amount of data, data itself.Data message form is as shown in table 3：
3 data message form of table
Finish messages：Identify live end.Finish message formats are as shown in table 4.
4 Finish message formats of table
| 1 byte | 1 byte | 2 bytes |
| UDP synchronous head 0x55 | UDP Packet type 0x03Finish messages | 0 |
Disclosed in the embodiment of the present invention, live data is first encapsulated as existing film by the method and system of movie theatre programme televised live
The adopted MXF files of packing, then be encapsulated as TS streams and be transmitted, will be original streaming live file-type of changing into live, in shadow
Institute end receives TS streams by existing satellite receiving system, is then directly decapsulated and is decompressed by Play Server, profit
With existing resource, without the need for separately adding equipment.Simultaneously, it is contemplated that movie theatre needs multiple movie theaters to carry out living broadcast of programs, satellite simultaneously
MXF files are sent by the way of UDP multicasts to the Play Server of multiple movie theaters by receiver.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can be without departing from this
Various modifications and variations are made in the case of bright spirit and scope, such modification and modification are each fallen within by claims
Within limited range.
Claims (10)
1. a kind of system of movie theatre programme televised live, it is characterised in that the system includes：
Collect and process device, for gathering program stream, is compressed coding, obtains the program after compressed encoding to program stream
Code stream；
Encapsulation dispensing device, for video and audio difference in the program stream after the compressed encoding that obtains the collect and process device
MXF MXF files are encapsulated as, are that TS flows and TS streams are sent to deblocking dispensing device by the MXF Document encapsulations,
The MXF files include video MXF files and audio frequency MXF files；
Deblocking dispensing device, carries out solving TS encapsulation for the TS streams to receiving, obtains MXF files, and MXF files are sent to
Play Server, the deblocking dispensing device are arranged at movie theatre；
Play Server, carries out solving MXF encapsulation and decompresses for the MXF files to receiving, obtain program stream, and by institute
State program stream and be sent to projector, the Play Server is arranged at the movie theater of movie theatre；
Projector, for showing the program stream that the Play Server sends.
2. system according to claim 1, is further characterized in that, the system also includes：DVB, the satellite
Receiver is arranged at movie theatre；
TS streams are sent to the DVB by satellite by the encapsulation dispensing device；
The TS streams for receiving are sent to the deblocking dispensing device by the DVB.
3. system according to claim 1, it is characterised in that if movie theatre has multiple movie theaters, each movie theater is respectively provided with
There is Play Server, TS streams are sent to the Play Server by the way of UDP multicasts by the encapsulation dispensing device.
4. system according to claim 1, it is characterised in that the MXF files by frame or in units of the second, the video
MXF files are corresponded with the audio frequency MXF files.
5. system according to claim 1, it is characterised in that if program is 3D programs, the MXF files include a left side
Eye MXF files, right eye MXF files and audio frequency MXF files, wherein, left eye MXF files include left-eye video MXF files, right eye
MXF files include right eye video MXF files.
6. a kind of method of the system programme televised live based on movie theatre programme televised live described in any one of claim 1 to 5, its feature exist
In the method includes：
S1. collect and process device collection program stream, is compressed coding, obtains the program code after compressed encoding to program stream
Stream；
S2. encapsulate dispensing device and video and audio in the program stream after the compressed encoding is encapsulated as into MXF respectively
MXF files, are that TS flows and TS streams are sent to deblocking dispensing device by the MXF Document encapsulations, and the MXF files include video
MXF files and audio frequency MXF files；
S3. unsealing dispensing device carries out solving TS encapsulation to the TS streams for receiving, and obtains MXF files, and MXF files are sent to shadow
The Play Server in the Room；
S4. Play Server is carried out solving MXF encapsulation and is decompressed to the MXF files for receiving, and obtains program stream, and will be described
Program stream is sent to projector；
S5. projector shows the program stream that the Play Server sends.
7. method according to claim 6, it is characterised in that in step s 2, if movie theatre has multiple movie theaters, each
Movie theater is provided with Play Server, and TS streams are sent to the broadcasting by the way of UDP multicasts by the encapsulation dispensing device
Server.
8. method according to claim 6, it is characterised in that in step s 2, the MXF files are with frame or second as list
Position, the video MXF files are corresponded with the audio frequency MXF files.
9. method according to claim 6, it is characterised in that the MXF files if program is 3D programs, in step S2
Including left eye MXF files, right eye MXF files and audio frequency MXF files, wherein, left eye MXF files include left-eye video MXF files,
Right eye MXF files include right eye video MXF files.
10. method according to claim 6, it is characterised in that in step s 2, it is described TS streams are sent to into deblocking to send
Device includes：TS streams are sent to into deblocking dispensing device by satellite；
In step s3, the deblocking dispensing device receives TS streams by DVB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410360798.0A CN104093089B (en) | 2014-07-25 | 2014-07-25 | Cinema program live telecasting system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360798.0A CN104093089B (en) | 2014-07-25 | 2014-07-25 | Cinema program live telecasting system and method |
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| CN104093089A CN104093089A (en) | 2014-10-08 |
| CN104093089B true CN104093089B (en) | 2017-04-12 |
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| CN201410360798.0A Active CN104093089B (en) | 2014-07-25 | 2014-07-25 | Cinema program live telecasting system and method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611311A (en) * | 2016-02-05 | 2016-05-25 | 丁锋 | Cinema live broadcasting system |
| CN109600630A (en) * | 2018-12-07 | 2019-04-09 | 中国电影科学技术研究所 | A kind of film distribution version production method and system |
| CN109561345B (en) * | 2018-12-14 | 2021-08-03 | 上海文广科技（集团）有限公司 | Digital movie packaging method based on AVS + coding format |
| SG10201902335RA (en) * | 2019-01-22 | 2020-08-28 | Christopher Tan Bryan | A method of synchronizing playout of a live performance in a cinema in real-time |
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Address after: Room 604, No. 44 Science Academy South Road, Haidian District, Beijing, 100086 Patentee after: China Film Science and Technology Research Institute (Film Technology Quality Inspection Institute of the Central Propaganda Department) Address before: Room 604, No. 44 Science Academy South Road, Haidian District, Beijing, 100086 Patentee before: CHINA FILM SCIENCE AND TECHNOLOGY INST. |
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