CN113382287B - Media file playing method, device and system - Google Patents
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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]
- H04N21/20—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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
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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]
- H04N21/20—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
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
- H04N21/25891—Management of end-user data being end-user preferences
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV 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]
- H04N21/40—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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a playing method, a device and a system of a media file. The playing method of the media file comprises the following steps: acquiring thermodynamic value distribution data of a playing section in a media file; according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted; and playing the corresponding playing section according to the playing speed. The playing speed of each playing section of the media file can be reasonably adjusted, the automatic variable speed playing of the media file is realized, and the sensitivity of a user is improved.
Description
Technical Field
The present invention relates to the field of media files, and in particular, to a method, an apparatus and a system for playing a media file.
Background
The playing speed in the prior art video playing process is basically fixed, and the playing speed is actively set by a user. Such as 0.5, 0.8,1, 1.25, 1.5, 2.0, 3.0, etc. which are commonly used at present. The video is played according to the fixed double speed, so that a user can watch the video content quickly or slowly, but the mode is single, the user experience is still low, and automatic speed-changing playing cannot be realized.
Disclosure of Invention
In view of the foregoing, the present invention has been made to provide a method, apparatus and system for playing a media file that overcomes or at least partially solves the foregoing problems.
In a first aspect, an embodiment of the present invention provides a method for playing a media file, including:
acquiring thermodynamic value distribution data of a playing section in a media file;
according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted;
and playing the corresponding playing section according to the playing speed.
In some optional embodiments, the acquiring the thermodynamic value distribution data of the playing segment in the media file specifically includes:
acquiring thermodynamic value distribution data of a playing section in a pre-generated media file from a server; or alternatively, the first and second heat exchangers may be,
the method comprises the steps of locally obtaining thermal parameter information of a playing section in a media file, generating a thermal value of the corresponding playing section according to the thermal parameter information, and obtaining thermal value distribution data of the playing section; or alternatively, the first and second heat exchangers may be,
and acquiring the thermodynamic value distribution data of the playing section in the pre-generated media file from a server, locally acquiring the thermodynamic parameter information of the playing section in the media file, and adjusting the thermodynamic value distribution data according to the thermodynamic parameter information.
In some alternative embodiments, the method for obtaining the thermal parameter information of the playing section in the media file from the local and/or server specifically includes:
obtaining from a local and/or server at least one of the following information of a play segment in a media file:
dotting marks of play sections marked in the editing process of the media file;
picture change information of the play section;
playing the audio change information of the segment;
the local user watches the emotion information of the playing section;
the server counts emotion information of the user when watching the playing section in advance;
personal viewing preference information of the local user.
In some optional embodiments, after adjusting the playing speed of the playing section, the method further includes:
adjusting the playing speed according to the relation between the type of the media file and the influence coefficient of the preset type of the media file on the playing speed; and/or the number of the groups of groups,
and adjusting the playing speed according to the relation between the time period of playing the media file by the local user and the influence coefficient of the preset time period on the playing speed.
In some optional embodiments, the adjusting the playing speed of the playing section according to the preset correspondence between the thermal value and the playing speed and the thermal value distribution data specifically includes:
according to a preset first corresponding relation between a thermal value and a playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted, and the thermal value in the first corresponding relation is inversely proportional to the playing speed; or alternatively, the first and second heat exchangers may be,
determining the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the thermal value distribution data, wherein the thermal value in the second corresponding relation is inversely proportional to the playing speed; and determining the playing speed of the playing section according to the original playing speed and the playing double speed.
In a second aspect, an embodiment of the present invention provides a method for playing a media file, including:
the server generates a thermal value of the playing section according to the thermal parameter information of the playing section in the media file, obtains thermal value distribution data of the playing section, and sends the thermal value distribution data to a designated terminal, so that the terminal adjusts the playing speed of the playing section according to the thermal value distribution data, and plays the corresponding playing section according to the playing speed.
In some optional embodiments, the server generates the thermal value of the playing segment according to the thermal parameter information of the playing segment in the media file, and specifically includes:
the server generates a thermal value of the playing section according to at least one of the following thermal parameter information of the playing section in the media file:
marking points of the playing sections marked in the editing process of the media file;
the emotion information of the user when watching the playing section is collected in advance;
picture change information of the playing section;
and audio change information of the playing section.
In a third aspect, an embodiment of the present invention provides a playing device for a media file, including:
the acquisition module is used for acquiring the distribution data of the thermal value of the playing section in the media file;
the adjusting module is used for adjusting the playing speed of the playing section according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data acquired by the acquiring module;
and the playing module is used for playing the corresponding playing section according to the playing speed adjusted by the adjusting module.
In a fourth aspect, an embodiment of the present invention provides a play server, including:
the generating module is used for generating the thermal value of the playing section according to the thermal parameter information of the playing section in the media file to obtain the thermal value distribution data of the playing section;
and the sending module is used for sending the thermal value distribution data generated by the generating module to a designated playing terminal, so that the playing terminal adjusts the playing speed of the playing section according to the thermal value distribution data and plays the corresponding playing section according to the playing speed.
In a fifth aspect, an embodiment of the present invention provides a media file playing system, including the above playing server and a plurality of the above playing terminals;
the playing terminal is used for adjusting the playing speed of the playing section according to the thermodynamic value distribution data of the playing section received from the playing server and playing the corresponding playing section according to the playing speed.
In a sixth aspect, an embodiment of the present invention provides a computer readable storage medium having stored thereon computer instructions that when executed by a processor implement a method for playing a media file as described above.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the playing method of the media file in the embodiment of the invention comprises the following steps: acquiring thermodynamic value distribution data of a playing section in a media file; according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted; and playing the corresponding playing section according to the playing speed. The playing speed of the thermal value distribution data of the playing section can be reasonably adjusted, so that the automatic variable-speed playing of the media file is realized, and the sensitivity of a user is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a block diagram of a hardware structure of a computer terminal (or mobile device) for implementing a playing method of a media file according to a first embodiment of the present application;
fig. 2 is a schematic diagram of a computer terminal (or mobile device) as a client terminal according to a first embodiment of the present application;
FIG. 3 is a flowchart of a method for playing a media file according to a first embodiment of the present invention;
FIG. 4 is a diagram illustrating an exemplary method for playing a media file according to a first embodiment of the present invention;
fig. 5 is a flowchart of a video playing method in the third embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a structure of a playback apparatus for media files according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a playback server according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a media file playing system according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problem that in the prior art, video playing can only be performed at a fixed speed and automatic speed-changing playing cannot be realized, the embodiment of the invention provides a playing method, a playing device and a playing system for media files, which can realize automatic speed-changing playing of the media files.
Example 1
In one embodiment, the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that shown or described herein.
The method embodiment provided in the first embodiment of the present application may be executed in a mobile terminal, a computer terminal or a similar computing device. Fig. 1 shows a block diagram of a hardware structure of a computer terminal (or mobile device) for implementing a playing method of a media file. As shown in fig. 1, the computer terminal 10 (or mobile device 10) may include one or more processors 102 (shown as 102a, 102b, … …,102 n) which may include, but are not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA, a memory 104 for storing data, and a transmission module 106 for communication functions. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial Bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
It should be noted that the one or more processors 102 and/or other data processing circuits described above may be referred to generally herein as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module, or incorporated, in whole or in part, into any of the other elements in the computer terminal 10 (or mobile device). As referred to in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination to interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the playing method of the media file in the embodiment of the present application, and the processor 102 executes the software programs and modules stored in the memory 104, thereby executing various functional applications and data processing, that is, implementing the playing method of the media file. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission module 106 is used to receive or transmit data via a network. The specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission module 106 includes a network adapter (Network Interface Controller, NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission module 106 may be a Radio Frequency (RF) module for communicating with the internet wirelessly.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10 (or mobile device).
The hardware block diagram shown in fig. 1 may be used not only as an exemplary block diagram of the computer terminal 10 (or mobile device) described above, but also as an exemplary block diagram of a server, and in an alternative embodiment, fig. 2 shows, in block diagram form, an embodiment using the computer terminal 10 (or mobile device) shown in fig. 1 described above as a client terminal. As shown in fig. 2, the computer terminal 10 (or mobile device) may be connected or electronically connected to one or more servers 66 via a data network connection. In an alternative embodiment, the computer terminal 10 (or mobile device) may be a mobile computing device or the like. The data network connection may be a local area network connection, a wide area network connection, an internet connection, or other type of data network connection. The computer terminal 10 (or mobile device) may execute to connect to a network service executed by a server (e.g., a security server) or a set of servers. Web servers are web-based user services such as social networks, cloud resources, email, online payment, or other online applications.
In order to realize automatic variable speed playing of the media file under the above operation environment, the application provides a playing method of the media file as shown in fig. 3, which specifically includes the following steps:
step S31: and acquiring the distribution data of the thermal value of the playing section in the media file.
Specifically, thermodynamic diagrams generated in advance by a server, namely thermodynamic value distribution data of a playing section in a media file, can be directly obtained from the server; or the thermodynamic parameter information of the playing section in the media file is obtained from the local and/or server, and then the thermodynamic value of the corresponding playing section is generated according to the thermodynamic parameter information, so as to obtain the thermodynamic value distribution data of the playing section; alternatively, the thermodynamic diagram generated in advance can be obtained from the server at the same time, the thermodynamic parameter information of the playing section in the media file can be obtained locally, and the obtained thermodynamic diagram can be adjusted according to the thermodynamic parameter information.
The thermodynamic value of a play segment may be understood as the extent to which the play segment is focused, with higher thermodynamic values indicating a greater likelihood that the corresponding play segment may be liked, and a greater need to slow down play.
Specifically, the above-mentioned obtaining, from the local and/or the server, the thermal parameter information of the playing segment in the media file may be at least one of the following information of the playing segment in the media file obtained locally:
(1) Dotting marks of play segments marked in the editing process of the media file.
In the process of making or editing the media file, a producer can mark points on important playing sections of the media file, namely only the important playing sections can be marked by the number of the points; other information can be recorded at the dotting position at the same time, and characters or screenshot are matched.
The more or more the dotting marks, the greater the positive influence on the thermal value (the greater the influence on the thermal value), and the higher the thermal value of the playback segment, with the same other parameter information.
(2) Picture change information of the play segment.
For example, a video file in a media file, a playing section is formed by combining a plurality of picture frames, and the inter-frame picture variation degree of the playing section is counted, so that the importance degree, namely the attention degree, of the playing section can be reflected. For example, the frame change range corresponding to the fight scene may be larger, and the fight scene is also generally focused, so that more users want the fight scene to be played at a reduced speed; the picture change amplitude corresponding to a large number of white scenes can be smaller, the attention of the white scenes is often smaller, and more users hope that the white scenes can be played quickly.
Therefore, the larger the picture change of the playing section, the larger the positive influence on the thermal value, and the higher the thermal value of the playing section under the condition that other parameter information is the same.
(3) Audio change information of the play segment.
The video file or the audio file in the media file can reflect the importance degree of the playing section, namely the attention degree, through the audio change degree of the playing section. For example, a playback segment with a large fluctuation of audio changes may be of higher interest, and more users want to be able to play at a slow speed; the smoother audio playing segment may be of less concern and more users may wish to be able to play quickly.
Therefore, the larger the audio variation of the playing section, the larger the positive influence on the thermal value, and the higher the thermal value of the playing section under the condition that other parameter information is the same.
(4) The server counts emotion information of the user when watching the playing section in advance.
The method comprises the steps that a server counts subtitle bullets sent when a user watches playing segments in advance, clusters subtitle bullets corresponding to each playing segment, and determines a difference value between the number of subtitle bullets needing to be played quickly and the number of subtitle bullets needing to be played slowly. The difference value is positive, which indicates that more users hope that the playing section can be played quickly, the larger the difference value is, the larger the negative influence on the thermal value (the smaller the influence on the thermal value is), and the lower the thermal value of the playing section is under the condition that other parameter information is the same; the difference value is negative, which means that more users hope that the playing section can be played at a low speed, the larger the absolute value of the playing section has larger positive influence on the thermal value, and the higher the thermal value of the playing section is under the condition that other parameter information is the same.
And/or obtaining at least one of the following thermal parameter information of a playing section in the media file from the server:
(5) Personal viewing preference information of the local user.
The personal viewing preference information of the local user may be counted in advance, for example, the proportion of video such as viewing action class, entertainment class, education class, animation class, ancient drama class, love drama class, etc. If the type of the media file accords with the type which the user likes to watch, the more the forward influence on the thermal value is, the thermal value can be properly increased; if the type of media file does not match, or even is opposite, the type of media file that the user prefers to view, the more negative the thermal value will be, the thermal value can be reduced appropriately.
(6) The local user views the mood information when playing the segment.
The emotion feedback of the local user, which is monitored in real time, can be subtitle bullets sent by the local user or emotion feedback of the user, which is identified through technologies such as face recognition and iris recognition. For example, when receiving the subtitle bullets such as "boring", "can't be quickly clicked" or "milling" sent by the user; or when a drag-in playing command of a user is received; or when the emotion of the local user is identified to be boring, the user can be predicted to hope that the playing section can be played quickly, so that the thermal value of the playing section can be reduced, and the playing speed of the playing section can be increased. When receiving subtitle bullets such as 'too stimulated' or 'true wonderful' sent by a user, or receiving a playback command of the user, or recognizing that the emotion of a local user is relatively tension or excited, the user can be predicted to hope that the playing section can be played at a low speed, so that the thermal value of the playing section can be improved, and the playing speed of the playing section can be reduced.
The thermodynamic parameter information (1) - (5) can be obtained before playing the media file, thermodynamic distribution data is preliminarily determined according to the obtained parameter information, the playing speed is determined according to the thermodynamic distribution data, and the media file is played at a variable speed according to the determined playing speed; (6) The method can be obtained in the playing process of the media file, and the thermodynamic value of the playing section being watched is adjusted in real time according to the obtained emotion information when the local user watches the playing section, so that the playing speed of the playing section is adjusted.
The media files may be, for example, video files, audio files, or other forms of media files. The playing section, that is, the playing unit in the media file determined according to the preset rule, takes the video file as an example, the playing section can be a continuous preset number of playing frame numbers, because the generated original video is generally tens of frames of 1 second and is usually 30 frames of 1 second, if each frame determines the corresponding thermal value, the calculated amount is too large, and the application meaning is not great, for example, 60 continuous frames can be preset as a playing section, and optionally, other continuous frames can also be preset as a playing section; alternatively, the playing section may be a preset original playing time section, for example, the preset original playing time is 2 seconds, and the other original playing time sections may be preset as a playing section.
Step S32: and adjusting the playing speed of the playing section according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data.
Specifically, the playing speed of the playing section may be determined according to a preset first correspondence between the thermal value and the playing speed and thermal value distribution data. The thermal value in the first correspondence is inversely proportional to the playing speed.
Optionally, the playing speed of the playing section may be determined according to a preset second correspondence between the thermal value and the playing speed and thermal value distribution data, so as to determine the playing speed of each playing section according to the original playing speed and the playing speed. The thermal value in the second corresponding relation is inversely proportional to the playing time.
Step S33: and playing the corresponding playing section according to the playing speed.
According to the technical scheme provided by the first embodiment of the invention, the thermodynamic value distribution data of the playing section in the media file is obtained; according to the preset corresponding relation between the thermal value and the playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted; and playing the corresponding playing section according to the playing speed. The playing speed of the thermal value distribution data of the playing section can be reasonably adjusted, so that the automatic variable-speed playing of the media file is realized, and the sensitivity of a user is improved. For example, as shown in fig. 4, a time-dependent variation distribution diagram of the playing speed of the media file is determined according to the distribution diagram of the thermal value in fig. 4, and then the actual playing speed is adjusted in real time according to the determined playing speed in the playing process of the media file, that is, the playing speed of the media file is adjusted. In fig. 4, the horizontal dashed line in the thermal value distribution diagram is the original playing speed, that is, the thermal value corresponding to the playing speed is 1, it can be seen that the thermal value is relatively high at time t1, so that the determined playing speed is relatively small, namely, 0.7, and the playing speed is relatively slow at this time; at time t2, the thermal value is higher, so that the determined playing speed is smaller and is 0.5, and the playing speed is slower at the moment; at time t3, the thermal value is relatively low, so that the determined playing time is relatively large and is 1.3, and the playing speed is relatively high at the moment; the thermal value at the time t4 is equal to the time t1, so that the playing speed is equal to the time t 1.
Example two
The execution main body of the first embodiment of the invention is a playing client, namely a playing terminal, and the execution main body of the second embodiment of the invention provides a playing method of another media file, wherein the execution main body is a playing server, the server generates a thermal value of a playing section according to thermal parameter information of the playing section in the media file, obtains thermal value distribution data of the playing section and sends the thermal value distribution data to a designated playing terminal, so that the playing terminal adjusts the playing speed of the playing section according to the thermal value distribution data, and plays the corresponding playing section according to the playing speed.
In one embodiment, the server generates the thermal value of the play segment according to at least one of the following thermal parameter information of the play segment in the media file:
dotting marks of play sections marked in the editing process of the media file;
the method comprises the steps that emotion information of a user during watching a playing section is collected in advance;
picture change information of the play section;
audio change information of the play segment.
Optionally, after the playing speed of the playing section is determined in the first embodiment and the second embodiment, the playing speed may be adjusted according to the relationship between the type of the media file and the preset coefficient of influence of the type of the media file on the playing speed; and/or adjusting the playing speed according to the relation between the time period of playing the media file by the local user and the influence coefficient of the preset time period on the playing speed.
For example, the server finds that most users wish to play the fighted media file at a slow speed after a large amount of data statistics, so that the playing speed can be slowed down on the basis of the current value; after a large amount of data statistics, the server finds that most users generally accelerate playing when playing the media files at night, so that if the playing time of the playing terminal is at night, the playing speed can be accelerated integrally on the basis of the current value.
Example III
In a third embodiment of the present invention, taking a video playing method as an example, referring to fig. 5, a specific implementation process of the method may include the following steps:
step S51: and acquiring the distribution data of the thermodynamic value of each playing section of the video, which is generated in advance, from the server.
For a specified video, the server may obtain at least one of the following information:
(1) Marking points of each play section marked in the video editing process.
(2) And the user collected in advance watches the emotion information of each playing section.
(3) Picture change information of each play section.
(4) Audio change information for each playback section.
And the server generates thermodynamic value distribution data of each playing section of the video according to the acquired at least one item of information. The thermodynamic value distribution data may be no longer updated after generation; or the information which is possibly changed in the information can be obtained later according to a preset time interval, for example, emotion information and the like when a user watches each playing section, and the current thermal value distribution data can be updated according to the new information obtained in real time.
Step S52: and adjusting the distribution data of the thermal value according to the setting information of the local user acquired from the local terminal.
In particular, personal viewing preference information and/or current time of the local user can be obtained locally.
The personal watching preference information of the local user can be counted in advance, for example, the proportion of videos such as watching actions, entertainment, education, animation, ancient drama, love drama and the like, and if the proportion of the videos watched by the user is higher, the currently played or to-be-played videos are also actions, the distribution data of the thermal value can be integrally adjusted; the current or to-be-played video is education, and the distribution data of the thermal value can be adjusted down as a whole.
Specifically, the overall influence coefficient of the video type or the playing time on the thermal value can be generated in advance.
For example, the influence coefficient of the video of the fight class on the thermal value is preset to be larger than 1, for example, 1.5; the influence coefficient of the video of the side white class on the thermal value is preset to be smaller than 1, for example, 0.7.
For example, when the playing time period is daytime, an influence coefficient on the thermal value can be set to be greater than 1; when the playing time period is night, the influence coefficient on the thermal value can be set to be smaller than 1.
Step S53: and determining the playing speed of each playing section according to the corresponding relation between the preset thermal value and the playing speed and the adjusted thermal value distribution data.
Step S54: and playing the video according to the determined playing speed.
The steps above have realized the automatic speed change playing of the video, but the playing speed is generated before the video is played; the subsequent steps can further realize real-time adjustment of the playing speed in the playing process.
Step S55: the emotional information of the local user is monitored.
Step S56: and judging whether the monitored emotion information can influence the playing speed.
Such as monitoring subtitling bullets sent by the local user or emotional feedback of the user identified by face recognition, iris recognition, etc.
If it is determined that the emotion information of the user does not affect the playing speed, the step S54 is continuously executed; if it is determined that the emotion information of the user affects the playing speed, step S57 is performed.
Step S57: and adjusting the thermal value of the currently played playing section according to the emotion information of the user, further adjusting the playing speed of the currently played playing section, and playing the currently played section according to the adjusted playing speed.
Step S58: and ending the playing of the video.
And ending the playing of the video until the instruction of stopping playing of the user is obtained or the playing of the video is finished.
According to the technical scheme provided by the third embodiment of the invention, the emotion change information of the user is monitored while the video is played at variable speed, the current playing speed is adjusted in real time according to the monitored emotion information, more flexible audio-visual experience is provided for the user, and the user experience is further improved.
Based on the inventive concept of the present invention, an embodiment of the present invention further provides a playing device of a media file, where a structure of the playing device is shown in fig. 6, and the playing device includes:
an acquisition module 61, configured to acquire thermodynamic value distribution data of a playing section in a media file;
the first adjusting module 62 is configured to adjust a playing speed of the playing section according to a preset correspondence between a thermal value and a playing speed and the thermal value distribution data acquired by the acquiring module 61;
the playing module 63 is configured to play the corresponding playing segment according to the playing speed adjusted by the first adjusting module 62.
In one embodiment, the obtaining module 61 is specifically configured to:
acquiring thermodynamic value distribution data of a playing section in a pre-generated media file from a server; or, acquiring thermal parameter information of a playing section in the media file from a local and/or server, and generating a thermal value of the corresponding playing section according to the thermal parameter information to obtain thermal value distribution data of the playing section; or acquiring the thermodynamic value distribution data of the playing section in the pre-generated media file from the server, locally acquiring the thermodynamic parameter information of the playing section in the media file, and adjusting the thermodynamic value distribution data according to the thermodynamic parameter information.
In one embodiment, the obtaining module 61 is specifically configured to:
obtaining from a local and/or server at least one of the following information of a play segment in a media file:
dotting marks of play sections marked in the editing process of the media file; picture change information of the play section; playing the audio change information of the segment; the server counts emotion information of the user when watching the playing section in advance; the local user watches the emotion information of the playing section; personal viewing preference information of the local user.
In one embodiment, the apparatus for media files further includes a second adjustment module 64, where after the first adjustment module 62 adjusts the playing speed of the playing section, the second adjustment module 64 is configured to:
adjusting the playing speed according to the relation between the type of the media file and the influence coefficient of the preset type of the media file on the playing speed; and/or adjusting the playing speed according to the relation between the time period of playing the media file by the local user and the influence coefficient of the preset time period on the playing speed.
In one embodiment, the first adjustment module 62 is specifically configured to:
according to a preset first corresponding relation between a thermal value and a playing speed and the thermal value distribution data, the playing speed of the playing section is adjusted, and the thermal value in the first corresponding relation is inversely proportional to the playing speed; or determining the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the thermal value distribution data, wherein the thermal value in the second corresponding relation is inversely proportional to the playing speed; and determining the playing speed of the playing section according to the original playing speed and the playing double speed.
Based on the inventive concept of the present invention, an embodiment of the present invention further provides a play server, whose structure is shown in fig. 7, including:
the generating module 71 is configured to generate a thermal value of the playing section according to thermal parameter information of the playing section in the media file, so as to obtain thermal value distribution data of the playing section;
and the sending module 72 is configured to send the thermal value distribution data generated by the generating module 71 to a designated playing terminal, so that the playing terminal adjusts the playing speed of the playing section according to the thermal value distribution data, and plays the corresponding playing section according to the playing speed.
Based on the inventive concept of the present invention, an embodiment of the present invention further provides a media file playing system, whose structure is shown in fig. 8, including the above playing server 81 and a plurality of the above playing terminals 82;
the playing terminal 82 is configured to adjust a playing speed of the playing section according to the thermal value distribution data of the playing section received from the playing server 81, and play the corresponding playing section according to the playing speed.
The specific manner in which the various modules perform the operations in connection with the apparatus and systems of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Based on the same inventive concept, the embodiments of the present invention also provide a computer-readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the above-described method of playing a media file.
Unless specifically stated otherwise, terms such as processing, computing, calculating, determining, displaying, or the like, may refer to an action and/or process of one or more processing or computing systems, or similar devices, that manipulates and transforms data represented as physical (e.g., electronic) quantities within the processing system's registers or memories into other data similarly represented as physical quantities within the processing system's memories, registers or other such information storage, transmission or display devices. Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
It should be understood that the specific order or hierarchy of steps in the processes disclosed are examples of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. The processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. These software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or". The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Claims (9)
1. A method of playing a media file, comprising:
obtaining thermodynamic value distribution data of a playing section in a media file, wherein the thermodynamic value distribution data is generated according to at least one of the following thermodynamic parameter information: the method comprises the steps that dotting marks of playing sections marked in the editing process of media files, picture change information of the playing sections, audio change information of the playing sections, emotion information of users watching the playing sections, emotion information of local users watching the playing sections and personal watching preference information of the local users are counted in advance by a server;
according to a first corresponding relation between a preset thermodynamic value and a playing speed and the thermodynamic value distribution data, the playing speed of the playing section is adjusted; or determining the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the thermal value distribution data, and determining the playing speed of the playing section according to the original playing speed and the playing speed;
and playing the corresponding playing section according to the playing speed.
2. The method of claim 1, wherein the obtaining the thermodynamic value distribution data of the playing segment in the media file specifically comprises:
acquiring thermodynamic value distribution data of a playing section in a pre-generated media file from a server; or alternatively, the first and second heat exchangers may be,
acquiring thermal parameter information of a playing section in a media file from a local and/or server, and generating a thermal value of the corresponding playing section according to the thermal parameter information to obtain thermal value distribution data of the playing section; or alternatively, the first and second heat exchangers may be,
and acquiring the thermodynamic value distribution data of the playing section in the pre-generated media file from a server, locally acquiring the thermodynamic parameter information of the playing section in the media file, and adjusting the thermodynamic value distribution data according to the thermodynamic parameter information.
3. The method of claim 1, further comprising, after said adjusting the play speed of the play segment:
adjusting the playing speed according to the relation between the type of the media file and the influence coefficient of the preset type of the media file on the playing speed; and/or the number of the groups of groups,
and adjusting the playing speed according to the relation between the time period of playing the media file by the local user and the influence coefficient of the preset time period on the playing speed.
4. The method of claim 1, wherein the thermal value in the first correspondence is inversely proportional to the playing speed;
and the thermal value and the playing speed in the second corresponding relation are inversely proportional.
5. A method of playing a media file, comprising:
the server generates a thermal value of the playing section according to at least one of the following thermal parameter information of the playing section in the media file: the method comprises the steps that dotting marks of playing sections marked in the editing process of media files, picture change information of the playing sections, audio change information of the playing sections, emotion information of users watching the playing sections, emotion information of local users watching the playing sections and personal watching preference information of the local users are counted in advance by a server; and obtaining the distribution data of the thermal value of the playing section, and sending the distribution data of the thermal value to a designated playing terminal, so that the playing terminal adjusts the playing speed of the playing section according to a preset first corresponding relation between the thermal value and the playing speed and the distribution data of the thermal value, or determines the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the distribution data of the thermal value, and determines the playing speed of the playing section according to the original playing speed and the playing speed and plays the corresponding playing section according to the playing speed.
6. A media file playing device, disposed in a player, comprising:
the acquisition module is used for acquiring the thermal value distribution data of the playing section in the media file, wherein the thermal value distribution data is generated according to at least one of the following thermal parameter information: the method comprises the steps that dotting marks of playing sections marked in the editing process of media files, picture change information of the playing sections, audio change information of the playing sections, emotion information of users watching the playing sections, emotion information of local users watching the playing sections and personal watching preference information of the local users are counted in advance by a server;
the adjusting module is used for adjusting the playing speed of the playing section according to a preset first corresponding relation between the thermal value and the playing speed and the thermal value distribution data; or determining the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the thermal value distribution data, and determining the playing speed of the playing section according to the original playing speed and the playing speed;
and the playing module is used for playing the corresponding playing section according to the playing speed adjusted by the adjusting module.
7. A playout server comprising:
the generating module is used for generating the thermal value of the playing section according to at least one of the following thermal parameter information of the playing section in the media file to obtain the thermal value distribution data of the playing section: the method comprises the steps that dotting marks of playing sections marked in the editing process of media files, picture change information of the playing sections, audio change information of the playing sections, emotion information of users watching the playing sections, emotion information of local users watching the playing sections and personal watching preference information of the local users are counted in advance by a server;
and the sending module is used for sending the thermodynamic value distribution data generated by the generating module to a designated playing terminal, so that the playing terminal adjusts the playing speed of the playing section according to a preset first corresponding relation between the thermodynamic value and the playing speed and the thermodynamic value distribution data, or determines the playing speed of the playing section according to a preset second corresponding relation between the thermodynamic value and the playing speed and the thermodynamic value distribution data, determines the playing speed of the playing section according to the original playing speed and the playing speed, and plays the corresponding playing section according to the playing speed.
8. A media file playing system comprising the playing server of claim 7 and a plurality of playing terminals of claim 7;
the playing terminal is used for adjusting the playing speed of the playing section according to a preset first corresponding relation between the thermal value and the playing speed and the thermal value distribution data; or determining the playing speed of the playing section according to a preset second corresponding relation between the thermal value and the playing speed and the thermal value distribution data, and determining the playing speed of the playing section according to the original playing speed and the playing speed; and playing the corresponding playing section according to the playing speed.
9. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the method of playing a media file according to any of claims 1 to 5.
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| CN105681894A (en) * | 2016-01-04 | 2016-06-15 | 努比亚技术有限公司 | Device and method for displaying video file |
| CN106331824B (en) * | 2016-08-31 | 2020-02-14 | 杭州当虹科技股份有限公司 | Method for playing streaming media video file at variable rate |
| CN108235123B (en) * | 2016-12-15 | 2020-09-22 | 阿里巴巴（中国）有限公司 | Video playing method and device |
| CN107105314B (en) * | 2017-05-12 | 2020-06-02 | 北京小米移动软件有限公司 | Video playing method and device |
| CN107888948B (en) * | 2017-11-07 | 2020-07-03 | 北京小米移动软件有限公司 | Method and device for determining video file playing speed, electronic equipment and computer readable storage medium |
| CN110278450A (en) * | 2018-03-16 | 2019-09-24 | 优酷网络技术（北京）有限公司 | Multimedia content playback method and device |
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