CN108495179B - Method for recording and replaying mixed program of broadcast and broadband - Google Patents
Method for recording and replaying mixed program of broadcast and broadband Download PDFInfo
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- CN108495179B CN108495179B CN201810325266.1A CN201810325266A CN108495179B CN 108495179 B CN108495179 B CN 108495179B CN 201810325266 A CN201810325266 A CN 201810325266A CN 108495179 B CN108495179 B CN 108495179B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Abstract
The invention relates to the technical field of digital televisions, in particular to a method and a device for recording and playing back a broadcast and broadband mixed program, wherein the recording method comprises the following steps: identifying a transmission mode of audio and video unit stream data corresponding to a currently recorded program according to the content of the service layer signaling, wherein the transmission mode comprises broadcast network transmission or broadband network transmission; recording the streaming data of the audio and video unit in the identified transmission mode; when the change of the transmission mode of the audio and video unit stream data is identified, recording the audio and video unit stream data in the changed transmission mode, and adding the time point in the content of the service layer signaling; the invention can obtain the service layer signaling through the broadcast network, and automatically switch the recording processing mode of the audio and video unit stream data according to the service layer signaling, thereby effectively ensuring the integrity of the recorded program and meeting the recording requirement of the broadcast and broadband mixed transmission program under the new generation of digital television standard.
Description
Technical Field
The invention relates to the technical field of digital televisions, in particular to a method for recording and playing back a broadcast and broadband mixed program.
Background
With the development of digital television technology, two different transmission modes of signals through a broadcasting network and a broadband network are developed. Nowadays, a new generation of digital tv standard proposes a method for transmitting the content of a program through a broadcast network and a broadband network: namely, the audio and video of a program can be transmitted together through broadcasting and broadband networks respectively, and the program enhancement information can also be transmitted through broadcasting or broadband networks.
This need arises for two reasons: 1. according to the difference of video resolution, the video unit stream data of the program can be multiple, if the multiple video unit stream data are transmitted by broadcast transmission at the same time, the multiple video unit stream data occupy too much broadcast bandwidth, and the transmission of part of the video unit stream data through a broadband network is beneficial to dispersing the transmission pressure; based on the same reason, the audio of one program can support multiple languages, and the transmission pressure can be dispersed by transmitting the audio unit stream data of one or more common languages in a broadcast transmission mode, and transmitting the audio unit stream data of an unusual language by a broadband network; 2. based on the protection of audio and video content and copyright reasons, the audio and video unit stream data of a complete program is transmitted in a broadcast network and a broadband network separately, which is more beneficial to protecting the program.
In the prior art, the recording mode only supports the recording of the audio and video unit stream data transmitted by the broadcast network or the broadband network, but for the audio and video unit stream data transmitted by the broadcast network and the broadband network in a mixed manner, the prior art cannot automatically switch the recorded data according to the transmission mode, and the recorded program content is incomplete easily due to untimely switching, so that the prior recording mode cannot meet the requirements of the new generation of digital television standards.
Disclosure of Invention
To overcome the above-mentioned drawbacks, it is an object of the present invention to provide a method for recording and playing back a program in a mixed broadcast and broadband transmission.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a method for recording a mixed program of broadcasting and broadband, which comprises the following steps:
identifying a transmission mode of audio and video unit stream data corresponding to a currently recorded program according to the content of the service layer signaling, wherein the transmission mode comprises broadcast network transmission or broadband network transmission;
recording the streaming data of the audio and video unit in the identified transmission mode;
when the change of the transmission mode of the audio and video unit stream data is recognized, the audio and video unit stream data is recorded in the changed transmission mode, and the current time point is added in the content of the service layer signaling.
The invention relates to a playback method of a broadcast and broadband mixed program, which comprises the following steps:
analyzing the content of the service layer signaling in the recording file; the content of the service layer signaling comprises a transmission mode of audio and video unit stream data and a time point recorded in the transmission mode; the transmission mode comprises broadcast network transmission or broadband network transmission;
based on the identified transmission mode of the recording file, adding the stream data of the audio and video unit in the recording file into a broadcast network data list or a broadband network data list;
and playing the audio and video unit stream data in the broadcast network data list and/or the broadband network data list.
The method for recording and replaying the mixed program of the broadcast and the broadband can acquire the service layer signaling through the broadcast network when recording the mixed program, and record the transmission mode of the audio and video unit stream data and the time point recorded by the transmission mode in the service layer signaling, thereby automatically switching the recording processing mode of the audio and video unit stream data corresponding to the mixed program, effectively ensuring the integrity of the recorded program and meeting the recording requirement of the mixed program of the broadcast and the broadband under the new generation digital television standard.
Drawings
For the purpose of easy explanation, the present invention will be described in detail with reference to the following preferred embodiments and the accompanying drawings.
Fig. 1 is a schematic workflow diagram of an embodiment of a recording method of the present invention;
fig. 2 is a schematic workflow diagram of another embodiment of the recording method of the present invention;
FIG. 3 is a schematic workflow diagram of an embodiment of a playback method of the present invention;
FIG. 4 is a schematic workflow diagram of another embodiment of a playback method of the present invention;
fig. 5 is a schematic logical structure diagram of an embodiment of a recording and playback apparatus according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A method for recording a mixed broadcast and broadband program according to an embodiment of the present invention is described in detail below with reference to fig. 1, which includes:
s101, judging whether the current recorded program is a mixed program or not
Here, the mixed program refers to audio and video data that are transmitted together through a broadcast and broadband network, and may also be referred to as a broadcast and broadband mixed program.
Specifically, a service layer signaling is received, the content of the service layer signaling is analyzed, whether the current transmission mode of the audio/video unit stream data is a hybrid transmission mode or not is judged according to the analyzed result, and if the current transmission mode is the hybrid transmission mode, the step s102 is performed. The mixed transmission refers to that the audio and video unit stream data is transmitted simultaneously or in a time-sharing manner through a broadcast network and/or a broadband network.
S102, identifying data transmission mode
And identifying a transmission mode of the audio and video unit stream data corresponding to the currently recorded program according to the content of the service layer signaling, wherein the transmission mode comprises broadcast network transmission or broadband network transmission. Acquiring data transmitted through a broadcast network in real time from a television signal input end, and analyzing and processing the received data to obtain a service layer signaling; the specific operation is as follows: acquiring a bottom layer signaling LLS (Low Level signaling) in data transmitted through a broadcast network in real time from a television signal input end, wherein the LLS is used for describing how to discover programs in the transport stream; when searching/playing programs, firstly processing signaling after frequency locking is successful; then, a program List SLT (service List table) is parsed from the LLS, and the SLT stores information including program names, program storage paths, and the like, and is included in a service Layer signaling sls (service Layer signaling). The service layer signalling SLS can be obtained by parsing the underlying signalling LLS transmitted by the broadcast network. Because the service layer signaling SLS in each audio/video unit stream data describes the characteristics of the audio/video unit stream data, such as a component list and where the component list is obtained, the source information of the audio/video unit stream data can be displayed. The source information in the service layer signaling can know that the audio and video unit stream data transmitted at the current moment comes from a broadcast network or a broadband network, or the broadcast network and the broadband network transmit the audio and video unit stream data at the same time.
S103, recording the stream data of the audio and video unit in the identified transmission mode
And recording the stream data of the audio and video unit in the identified transmission mode. When the current audio and video unit stream data is identified to be transmitted through the broadcast network, driving a broadcast data recording subprogram, and recording the audio and video unit stream data transmitted through the broadcast network; and when the current audio and video unit stream data is identified to be transmitted through the broadband network, driving a broadband data recording subprogram, and recording the audio and video unit stream data transmitted through the broadband network.
The broadband data recording subprogram is firstly connected to a network server where the broadband data recording subprogram is located, and then the broadband data recording subprogram starts to acquire and record live network data. The unit stream of each network address is recorded as an independent file, and a fragment file may be recorded, where the fragment file is an actual data packet for broadcasting audio and video in an MMTP Media Transport Protocol (MPEG Media Transport Protocol), and it needs to add a record for each fragment and record a network address corresponding to the fragment file. When the selected recording fragment is completely consistent with the original fragment, the corresponding network address can be directly recorded. The recording information may be stored in an index file or a fragment file to accurately associate the fragment file with a corresponding broadband source.
When the source address of a certain broadband audio/video unit stream changes, the recording of the stream data of the previous unit stream is stopped, and a recording file corresponding to a new source address is established in time and starts to record.
In this embodiment, the operations of the unit stream data of the broadband data recording sub-routine and the broadcast data recording sub-routine may be performed alternatively or simultaneously.
Optionally, the current time point may be added to the content of the service layer signaling to indicate a start time point corresponding to the current transmission mode of the audio/video unit stream data.
S104, judging whether the transmission mode is changed
Judging whether the transmission mode at the current moment is the same as the transmission mode at the previous moment or not; and when the transmission mode of the audio and video unit stream data is identified to be changed, returning to the step S103.
S105, adding time points in the content of the service layer signaling
When the change of the transmission mode of the audio and video unit stream data is identified, adding the current time point in the content of the service layer signaling, wherein the current time point is the change time point of the change of the transmission mode. If the current transmission mode is identified to be changed from the transmission through the broadcast network to the transmission through the broadband network, the current transmission mode records the change time point of the current time and adds the change time point to the content of the service layer signaling.
A method for recording a broadcast and broadband mixed program according to another embodiment of the present invention is described in detail below with reference to fig. 2, which includes:
s201, acquiring data transmitted through a broadcast network;
s202, analyzing the content of the service layer signaling;
s203, adding a time point in a service layer signaling;
and acquiring the content of the service layer signaling analyzed for the first time, adding a timestamp in the content of the service layer signaling, and monitoring the content of source information of the streaming data of the audio and video unit in real time. When the change of the transmission mode of the audio and video unit stream data is identified, recording the audio and video unit stream data in the changed transmission mode, and adding the time point in the content of the service layer signaling; the time point here may be a start time point at which the transmission starts.
Adding a starting time point in the content of the service layer signaling analyzed for the first time, namely, acquiring the specific information of the program, such as the name of the program, and acquiring the starting time point of the program through the content of the service layer signaling; when the source information of the stream data of the audio/video unit changes, adding a change time point to the content of the service layer signaling at the moment, for example: when the program is recorded to the 5 th minute, the data source is converted into a broadband network from a broadcasting network, and a last change time point is added in the content of the service layer signaling at the current moment; when the program is recorded to 10 th minute, the data source is converted from the broadband network to the broadcast network, and then another change time point is added in the content of the service layer signaling at the current moment; therefore, by changing the time points, the audio and video unit stream data of the program is from the broadband network in 5-10 minutes of the program recording.
S204, recording the time point when the service layer signaling changes
Recording the service layer signaling added with the time point; that is, only the time when the content of the service layer signaling changes is recorded; the time point here is a change time point at which the transmission mode is changed.
S205, judging whether the transmission mode is hybrid transmission or not
Receiving a service layer signaling, analyzing the content of the service layer signaling, judging whether the current transmission mode of the streaming data of the audio and video unit is a mixed transmission mode according to the analyzed result, and if the current transmission mode of the streaming data of the audio and video unit is the mixed transmission mode, performing step S206. identifying the data transmission mode of the streaming data of the unit. The mixed transmission refers to that the audio and video unit stream data is transmitted simultaneously or in a time-sharing manner through a broadcast network and/or a broadband network.
S206, identifying data transmission mode of unit flow data
According to the source information, identifying a data transmission mode of the streaming data of the audio and video unit, wherein the data transmission mode of the streaming data of the audio and video unit comprises the following steps: a data transmission mode through a broadcast network or a data transmission mode through a broadband network; the source information in the service layer signaling can know that the audio and video unit stream data transmitted at the current moment comes from a broadcast network or a broadband network, or the broadcast network and the broadband network transmit the audio and video unit stream data at the same time.
S207, recording unit stream data in broadcast network
Acquiring the current audio and video unit stream data from a broadcast network according to the identified data transmission mode, and recording the audio and video unit stream data; and when the current audio and video unit stream data is identified to be transmitted through the broadcast network, driving a broadcast data recording subprogram to record the audio and video unit stream data transmitted through the broadcast network.
S208, recording unit stream data in the broadband network
Acquiring the current audio and video unit stream data from a broadband network according to the identified data transmission mode, and recording the audio and video unit stream data; when the current audio and video unit stream data is identified to be transmitted through the broadband network, driving a broadband data recording subprogram, and recording the audio and video unit stream data transmitted through the broadband network; the broadband data recording subprogram is firstly connected to a network server where the broadband data recording subprogram is located, and then the broadband data recording subprogram starts to acquire and record live network data. The unit stream of each network address is recorded as an independent file, and a fragment file may be recorded, where the fragment file is an actual data packet for broadcasting audio and video in an MMTP Media Transport Protocol (MPEG Media Transport Protocol), and it needs to add a record for each fragment and record a network address corresponding to the fragment file. When the selected recording fragment is completely consistent with the original fragment, the corresponding network address may be directly recorded. The recording information may be stored in an index file or a fragment file, and in short, the fragment file and the corresponding broadband source must be accurately associated.
When the source address of a certain broadband audio/video unit stream changes, the recording of the stream data of the previous unit stream is stopped, and a recording file corresponding to a new source address is established in time and starts to record.
In this embodiment, the operation of recording the unit stream data in the broadcast network in step s207 and the operation of recording the unit stream data in the broadband network in step s208 may be performed alternatively or simultaneously.
S209, judging whether a service layer signaling is received
Judging whether a service layer signaling is received at the current moment, if the service layer signaling is received, indicating that audio and video data still need to be recorded, and analyzing the content of the service layer signaling again; and continuously recording the stream data of the audio and video unit.
S210, monitoring the content of the service layer signaling
If the service layer signaling is not received, monitoring the content of the service layer signaling.
S211, recording files are obtained after recording is finished
When the information of ending the program exists in the content of the service layer signaling, the recording of the audio and video unit stream data and the service layer signaling is ended, and the recorded service layer signaling and the recorded audio and video unit stream data corresponding to the recorded service layer signaling are combined into a recording file.
A method for playing back a broadcast and broadband mixed program according to an embodiment of the present invention is described in detail below with reference to fig. 3, which includes:
s301, analyzing the content of the service layer signaling
Selecting a group of recording files to be played back, and selecting the recording files to be played back in a local or database of the equipment; analyzing the content of the service layer signaling in the selected recording file to obtain the time point and the transmission mode of each recording file; the transmission mode comprises broadcast network transmission or broadband network transmission.
S302, audio and video unit stream data are added into a data list according to a time sequence
Sequencing the recording files according to the front and back sequence of the time points, and adding the audio and video unit stream data in the recording files into a broadcast network data list or a broadband network data list according to the identified data transmission mode; the method comprises the steps of firstly arranging all audio and video unit stream data according to the sequence of time points, then classifying the audio and video unit stream data according to a data transmission mode, adding the audio and video unit stream data into a broadcast network data list if the data transmission mode is broadcast network transmission, and adding the audio and video unit stream data into a broadband network data list if the data transmission mode is broadband network transmission.
S303, playing the acquired audio and video unit stream data
And acquiring audio and video unit stream data in the broadcast network data list and/or the broadband network data list, and playing the acquired audio and video unit stream data. And driving the broadcast data playing unit and the broadband data playing unit to play the audio and video unit stream data in the broadcast network data list and/or the broadband network data list respectively.
A method for playing back a broadcast and broadband mixed program according to another embodiment of the present invention is described in detail below with reference to fig. 4, which includes:
s401, selecting a recording file needing to be played back
A set of recording files to be played back is selected, and the selected recording files are selected in a local or database of the device.
S402, analyzing the service layer signaling in the recording file
Analyzing the service layer signaling in each selected recording file to obtain a time stamp and source information of each recording file; it reads the time stamp in the service layer signaling by starting the playback signaling of the signaling playback subroutine.
S403, sorting the recorded files
Sequencing the recorded files according to the front and back sequence of the timestamps; the recorded files are sorted in order from early to late by comparing the time on the time stamp.
S404, identifying a data transmission mode
According to the source information, identifying the data transmission mode of the sequentially recorded files according to the sequencing sequence, wherein the data transmission mode of the audio and video unit stream data comprises the following steps: a data transmission mode through a broadcast network or a data transmission mode through a broadband network;
s405, adding unit flow data into a broadcast network data list
If the data transmission mode of the audio and video unit stream data is identified to be transmission through a broadcast network, adding the audio and video unit stream data in the recording file into a broadcast network data list;
s406, adding the unit flow data into the broadband network data list
If the data transmission mode of the audio and video unit stream data is identified to be transmission through a broadband network, adding the audio and video unit stream data in the recording file into a broadband network data list;
s407, judging whether unit stream data which is not added into the data list exists or not
Judging whether audio and video unit stream data which are not added into the broadcast network data list or the broadband network data list exist, if so, continuing to perform the step S404. identifying a data transmission mode; if not, go to step S408. determine whether there is a selected signal input.
S408, judging whether a selected signal is input or not
And judging whether a selection signal is input, if so, performing step S409. selecting the data list. If no selection signal is input, selecting the broadcast network data list and the broadband network data list at the same time, and performing step S410.
S409, selecting the data list
Identifying the content of the input selected signal, and selecting a broadcast network data list or a broadband network data list according to the identified content of the selected signal; if the selection signal selects the broadcast network data list, preferentially playing the audio and video unit stream in the broadcast network data list; if the selection signal selects the broadband network data list, the audio and video unit stream in the broadband network data list is preferentially played.
S410, playing the stream data of the audio and video unit
And acquiring audio and video unit stream data in the selected broadcast network data list and/or broadband network data list, and playing the audio and video unit stream data according to the sequence in the broadcast network data list or the broadband network data list.
The apparatus for recording and playing back a broadcast and broadband mixed program according to the present invention is described in detail with reference to fig. 5, which includes:
a recording module 500 and a playback module 510;
when a program needs to be recorded, driving a recording module 500, where the recording module 500 includes:
a signaling content obtaining unit 501, where the signaling content obtaining unit 501 is configured to obtain data transmitted through a broadcast network in real time from a television signal input end, and obtain content of a service layer signaling from the data transmitted through the broadcast network; acquiring a bottom layer signaling LLS (Low Level signaling) in data transmitted through a broadcast network in real time from a television signal input end, wherein the LLS is used for describing how to discover programs in the transport stream; when searching/playing programs, firstly processing signaling after frequency locking is successful; then, a program List SLT (service List table) is parsed from the LLS, and the SLT stores information including program names, program storage paths, and the like, and is included in a service Layer signaling sls (service Layer signaling). Analyzing a bottom layer signaling LLS transmitted by a broadcast network to obtain a service layer signaling SLS;
a data source identification unit 502, where the data source identification unit 502 is connected to the signaling content acquisition unit 501, and is configured to identify, according to the content of the service layer signaling, a transmission mode of audio/video unit stream data corresponding to the currently recorded program, where the transmission mode includes broadcast network transmission or broadband network transmission, and drive a broadcast data recording unit or a broadband data recording unit according to the identified transmission mode;
the broadcast data recording unit 503 is connected to the data source identification unit 502 and the broadcast network, and is configured to acquire audio/video unit stream data at the current time from the broadcast network and record the audio/video unit stream data; in this embodiment, the broadcast data recording unit 503 may be an existing broadcast recording program;
the broadband data recording unit 504 is connected with the data source identification unit 502 and the broadband network, and is used for acquiring audio and video unit stream data at the current moment from the broadband network and recording the audio and video unit stream data; in this embodiment, the broadband data recording unit 502 may be an existing broadband recording program;
a timestamp adding unit 505, where the timestamp adding unit 505 is connected to the data source identifying unit 502, and is configured to add a time point at this time in the content of the service layer signaling when a transmission mode of the audio/video unit stream data is changed;
a recording file integration unit 506, where the recording file integration unit 506 is respectively connected to the broadcast data recording unit 503, the broadband data recording unit 504, and the timestamp adding unit 505, and is configured to integrate the content of the recorded audio/video unit stream data and the service layer signaling to obtain a recording file;
when the program needs to be played back, driving a playback module 510, where the playback module 510 includes:
a recording file analyzing unit 511, where the recording file analyzing unit 511 is connected to the recording file integrating unit 506, and is used to select a recording file and analyze the content of the service layer signaling of the recording file to obtain the time point and the transmission mode of each recording file;
a recording file sorting unit 512, wherein the recording file sorting unit 512 is connected to the recording file analyzing unit 511, and is configured to sort the recording files according to a front-back sequence of time points;
a recording file classifying unit 513, where the recording file classifying unit 513 is connected to the recording file sorting unit 512 and the recording file analyzing unit 511, and is configured to add audio/video unit stream data in a recording file to a broadcast network data list or a broadband network data list according to the identified data transmission mode;
a broadcast data playing unit 514, where the broadcast data playing unit 514 is connected to the recording file classifying unit 513, and is configured to acquire audio/video unit stream data in a broadcast network data list and play the acquired audio/video unit stream data; in this embodiment, the broadcast data playing unit 515 may be an existing broadcast playback program;
the broadband data playing unit 515, where the broadband data playing unit 515 is connected to the recording file classifying unit 513, and is configured to acquire audio/video unit stream data in a broadband network data list and play the acquired audio/video unit stream data; in this embodiment, the broadband data playing unit 515 may be an existing broadband playback program.
In this embodiment, the playback module 510 further includes:
a selected signal input unit 516, where the selected signal input unit 516 is respectively connected to the recording file classifying unit 513, the broadcast data playing unit 514, and the broadband data playing unit 514, and is configured to input a selected signal, select a broadcast network data list or a broadband network data list according to the content of the identified selected signal, and drive the broadcast data playing unit or the broadband data playing unit according to the selected broadcast network data list or the broadband network data list. If the selection signal selects the broadcast network data list, preferentially playing the audio and video unit stream in the broadcast network data list; if the selection signal selects the broadband network data list, the audio and video unit stream in the broadband network data list is preferentially played; if no selection signal is input, the broadcast network data list and the broadband network data list are selected at the same time.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A method for recording a hybrid broadcast and broadband program, wherein the hybrid broadcast and broadband program is transmitted together through a broadcast network and a broadband network, the method comprising:
receiving a service layer signaling, and analyzing the content of the service layer signaling, wherein the service layer signaling is obtained by acquiring a bottom layer instruction in data transmitted through a broadcast network from a television signal input end in real time and analyzing the bottom layer instruction, and the bottom layer instruction is used for describing how to find a program in a transport stream;
when the current recorded program is judged to be a broadcast and broadband mixed program according to the service layer signaling, identifying a transmission mode of audio and video unit stream data corresponding to the current recorded program according to the content of the service layer signaling, wherein the transmission mode comprises broadcast network transmission or broadband network transmission;
recording the streaming data of the audio and video unit in the identified transmission mode;
when the change of the transmission mode of the audio and video unit stream data is identified, recording the audio and video unit stream data in the changed transmission mode, and adding the time point in the content of the service layer signaling;
and recording the content of the service layer signaling, and combining the recorded content of the service layer signaling and the recorded audio and video unit stream data corresponding to the content into a recording file.
2. A method for recording a hybrid broadcast and broadband program as claimed in claim 1, further comprising:
and adding the current time point in the content of the service layer signaling while recording the audio/video unit stream data in the identified transmission mode.
3. The method for recording a broadcast and broadband mixed program according to claim 1, wherein the recording the audio/video unit stream data comprises:
and judging whether the service layer signaling is received at the current moment, and if the service layer signaling is received, analyzing the content of the service layer signaling again.
4. The method of claim 3, wherein said determining whether a service layer signaling is received at a current time further comprises:
if the service layer signaling is not received, monitoring the content of the service layer signaling, when the information of program end exists in the monitored content of the service layer signaling, ending recording the stream data recording of the audio and video unit and the content of the service layer signaling, and combining all recorded files obtained through recording into a group of recorded files.
5. A method for playing back a broadcast and broadband mixed program, wherein the broadcast and broadband mixed program is transmitted together through a broadcast network and a broadband network, the method comprising:
analyzing the content of the service layer signaling in the recording file; the content of the service layer signaling comprises a transmission mode of audio and video unit stream data and a time point recorded in the transmission mode; the transmission mode comprises broadcast network transmission or broadband network transmission, wherein the service layer signaling is obtained by acquiring a bottom layer instruction in data transmitted through a broadcast network from a television signal input end in real time and analyzing the bottom layer instruction when recording the recording file, and the bottom layer instruction is used for describing how to find a program in a transport stream;
sequencing the recording files according to the front and back sequence of the time points, and identifying the transmission mode of the audio and video unit stream data corresponding to the recording files according to the sequencing sequence;
based on the identified transmission mode of the recording file, adding the audio and video unit stream data in the recording file into a broadcast network data list or a broadband network data list;
and playing the audio and video unit stream data in the broadcast network data list and/or the broadband network data list.
6. The method for playing back a broadcast and broadband mixed program according to claim 5, wherein the adding the stream data of the audio/video unit in the recording file to the broadcast network data list or the broadband network data list further comprises:
judging whether audio and video unit stream data which is not added into a broadcast network data list or a broadband network data list exists, if so, continuously identifying the transmission mode of the audio and video unit stream data corresponding to the recording file according to the sequencing sequence; if not, acquiring the audio and video unit stream data in the broadcast network data list or the broadband network data list.
7. The method for playing back a broadcast and broadband mixed program according to claim 5, wherein playing the stream data of the audio/video unit in the broadcast network data list and/or the broadband network data list comprises:
judging whether a selected signal is input, if so, identifying the content of the input selected signal, and selecting a broadcast network data list or a broadband network data list according to the identified content of the selected signal; if no selection signal is input, selecting the broadcast network data list and the broadband network data list at the same time;
acquiring audio and video unit stream data in the selected broadcast network data list and/or the selected broadband network data list;
and playing the stream data of the audio and video unit according to the sequence in the broadcast network data list or the broadband network data list.
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| CN111526389B (en) * | 2020-04-29 | 2022-02-15 | 深圳创维－Rgb电子有限公司 | Video playing method, television and storage medium for broadcast broadband hybrid application |
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