CN111683292A - Video playing method and device - Google Patents
Video playing method and device Download PDFInfo
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- CN111683292A CN111683292A CN202010568342.9A CN202010568342A CN111683292A CN 111683292 A CN111683292 A CN 111683292A CN 202010568342 A CN202010568342 A CN 202010568342A CN 111683292 A CN111683292 A CN 111683292A
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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
- H04N21/47202—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 requesting content on demand, e.g. video on demand
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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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- Television Signal Processing For Recording (AREA)
Abstract
The embodiment of the invention provides a video playing method and a video playing device, which relate to the technical field of data processing, wherein the method comprises the following steps: acquiring segment wonderful degree of each video segment in a video to be played; calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment; determining a segment proportion corresponding to each preset playing speed according to the video wonderful degree, wherein the segment proportion represents that: the number of the video clips to be played at the preset playing speed is in proportion to the total number of the video clips in the video to be played; determining a preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip; and playing each video clip at the playing speed of each video clip. When the scheme provided by the embodiment of the invention is applied to play the video, the efficiency of adjusting the video playing speed can be improved.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a video playing method and apparatus.
Background
In the process of playing the video, the user is more willing to watch the video clip with more attractive content, so that the user can watch the video clip in more detail by playing the attractive video clip slowly. In contrast, the user may be not willing to watch video clips with unattractive content, such as advertisement clips, video clips with draggy plots, and the like, so that the user can save time by playing the unattractive video clips quickly. However, in the prior art, the change of the playing speed of the video along with the content change of the video clip is realized by manual operation of a user, so that when the content of the video clip changes frequently, the user needs to adjust the playing speed frequently, which not only causes poor experience of the user in watching the video, but also causes low efficiency of adjusting the playing speed of the video.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method and an apparatus for playing a video, so as to improve efficiency of adjusting a playing speed of the video. The specific technical scheme is as follows:
in a first aspect of the present invention, there is provided a video playing method, where the method includes:
acquiring segment wonderful degree of each video segment in a video to be played;
calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment;
determining a segment proportion corresponding to each preset playing speed according to the video wonderful degree, wherein the segment proportion represents that: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played;
determining a preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip;
and playing each video clip at the playing speed of each video clip.
In an embodiment of the present invention, the determining a segment ratio corresponding to each preset playing speed according to the video highlight includes:
acquiring a preset content category to which the video content of the video to be played belongs;
and determining a preset proportion set corresponding to the video highlight degree under the content category, wherein the proportion set comprises a segment proportion corresponding to each preset playing speed.
In an embodiment of the present invention, after determining the preset playing speed corresponding to each video segment according to the determined segment proportion and the segment highlight degree of each video segment, as the playing speed of the video segment, the method further includes:
determining each video clip cluster, wherein the playing speed of the video clips in each video clip cluster is the same; the cluster playing speeds of adjacent video clip clusters are different, and the cluster playing speeds of the video clip clusters are as follows: the playing speed of the video clips in the video clip cluster;
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster, and correcting the playing speed of the video segments contained in the first video segment cluster and the second video segment cluster to be the same playing speed, wherein the cluster time length is as follows: the sum of the time lengths of the video clips in the video clip cluster, where the first video clip cluster is: and the video segment cluster with the cluster time length smaller than the preset time length.
In an embodiment of the present invention, the modifying the playing speeds of the video segments included in the first video segment cluster and the second video segment cluster to be the same playing speed includes:
calculating the sum of cluster time lengths of video segment clusters with the cluster playing speed same as the preset playing speed in the first video segment cluster and the second video segment cluster aiming at each preset playing speed;
correcting the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster and having the playing speed different from the longest playing speed to be the longest playing speed, wherein the longest playing speed is as follows: the preset playing speed with the maximum cluster duration sum.
In an embodiment of the present invention, the modifying the playing speeds of the video segments included in the first video segment cluster and the second video segment cluster to be the same playing speed includes:
determining a fourth video clip cluster with the maximum cluster playing speed value in the first video clip cluster and the second video clip cluster;
calculating the ratio of the sum of the cluster time lengths of the fourth video segment cluster to the sum of the cluster time lengths of the first video segment cluster and the second video segment cluster;
if the ratio is larger than a preset ratio, correcting the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster in the first video clip cluster and the second video clip cluster to be the cluster playing speed of the fourth video clip cluster;
if the ratio is not greater than the preset ratio, modifying the playing speed of the video clips in the video clip clusters except for the fifth video clip cluster in the first video clip cluster and the second video clip cluster to the cluster playing speed of the fifth video clip cluster, wherein the fifth video clip cluster is as follows: and the video clip cluster with the minimum cluster playing speed value in the first video clip cluster and the second video clip cluster.
In an embodiment of the present invention, before the calculating the video highlight of the video to be played according to the segment highlight of each video segment, the method further includes:
determining the popularity of the video to be played in each user;
the calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment comprises the following steps:
calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment and the popularity degree of the video to be played according to the following expression:
wherein W is the video highlight level, C is the popularity level,is the average of the segment highlights, m andis a preset parameter.
In a second aspect of the present invention, there is also provided a video playback apparatus, including:
the degree obtaining module is used for obtaining the fragment wonderful degree of each video fragment in the video to be played;
the degree calculation module is used for calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment;
a ratio determining module, configured to determine, according to the video highlight, a segment ratio corresponding to each preset playing speed, where the segment ratio indicates: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played;
the speed determining module is used for determining the preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip;
and the clip playing module is used for playing each video clip at the playing speed of each video clip.
In an embodiment of the present invention, the ratio determining module is specifically configured to:
acquiring a preset content category to which the video content of the video to be played belongs;
and determining a preset proportion set corresponding to the video highlight degree under the content category, wherein the proportion set comprises a segment proportion corresponding to each preset playing speed.
In one embodiment of the present invention, the apparatus further comprises:
the segment cluster determining module is used for determining each video segment cluster after the speed determining module determines the playing speed of each video segment, wherein the playing speed of the video segments in each video segment cluster is the same; the cluster playing speeds of adjacent video clip clusters are different, and the cluster playing speeds of the video clip clusters are as follows: the playing speed of the video clips in the video clip cluster;
a speed correction module, configured to sequentially determine, according to a timing sequence of each video segment cluster, each second video segment cluster in which a cluster time length added to a cluster time length of a first video segment cluster reaches a preset time length, and correct the playing speeds of video segments included in the first video segment cluster and the second video segment cluster to be the same playing speed, where the cluster time length is: the sum of the time lengths of the video clips in the video clip cluster, where the first video clip cluster is: and the video segment cluster with the cluster time length smaller than the preset time length.
In an embodiment of the present invention, the speed correction module is specifically configured to:
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster;
calculating the sum of cluster time lengths of video segment clusters with the cluster playing speed same as the preset playing speed in the first video segment cluster and the second video segment cluster aiming at each preset playing speed;
correcting the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster and having the playing speed different from the longest playing speed to be the longest playing speed, wherein the longest playing speed is as follows: the preset playing speed with the maximum cluster duration sum.
In an embodiment of the present invention, the speed correction module is specifically configured to:
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster;
determining a fourth video clip cluster with the maximum cluster playing speed value in the first video clip cluster and the second video clip cluster;
calculating the ratio of the sum of the cluster time lengths of the fourth video segment cluster to the sum of the cluster time lengths of the first video segment cluster and the second video segment cluster;
if the ratio is larger than a preset ratio, correcting the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster in the first video clip cluster and the second video clip cluster to be the cluster playing speed of the fourth video clip cluster;
if the ratio is not greater than the preset ratio, modifying the playing speed of the video clips in the video clip clusters except for the fifth video clip cluster in the first video clip cluster and the second video clip cluster to the cluster playing speed of the fifth video clip cluster, wherein the fifth video clip cluster is as follows: and the video clip cluster with the minimum cluster playing speed value in the first video clip cluster and the second video clip cluster.
In one embodiment of the present invention, the apparatus further comprises:
the degree determining module is used for determining the popularity of the video to be played in each user before the degree estimating module calculates the video wonderful degree of the video to be played;
the degree calculating module is used for calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment and the popularity degree of the video to be played and the following expression:
wherein W is the video highlight level, C is the popularity level,for highlights of individual video segmentsAverage of the degrees, m andis a preset parameter.
The third aspect of the present invention further provides an electronic device, which includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of the first aspect when executing a program stored in the memory.
In yet another aspect of the present invention, there is also provided a computer-readable storage medium having a computer program stored therein, which when executed by a processor implements the method steps of any one of the above first aspects.
In a further aspect of the present invention, there is also provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method steps of any one of the above first aspects.
When the scheme provided by the embodiment of the invention is applied to play the video, the segment wonderness degree of each video segment in the video to be played is obtained, the video wonderness degree of the video to be played is calculated according to the segment wonderness degree of each video segment, the segment proportion corresponding to each preset playing speed is determined according to the video wonderness degree, the playing speed of each video segment is determined according to the determined segment proportion and the segment wonderness degree of each video segment, and each video segment is played at the playing speed of each video segment. The video highlight degree of the video to be played is determined according to the highlight degree of each video clip, the highlight degree of the video is higher, the highlight video clips in the video are more, the highlight video clips played at a low speed can enable a user to watch the video content in the highlight video clips in more detail, therefore, if the highlight degree of the video to be played is higher, the proportion of the video clip with the lower playing speed in the video clips of the video to be played is higher, the user can watch the video to be played with the higher highlight degree of the video in detail, if the highlight degree of the video to be played is lower, the proportion of the video clip with the higher playing speed in the video clips of the video to be played is higher, the overall playing speed of the video to be played is higher, and the time of the user is saved. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. The playing speed of each video clip can be determined by combining the clip proportion corresponding to each preset playing speed, and each video clip is played at the playing speed of each video clip, so that the video clip with higher clip wonderful degree is slower in playing speed, a user can watch the video clip with high clip wonderful degree in detail, know the video content in detail, watch the video clip with low clip wonderful degree roughly, and the watching time is saved. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic flowchart of a first video playing method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a second video playing method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a third video playing method according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a fourth video playing method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first video playing apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second video playing device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a third video playback device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem, embodiments of the present invention provide a video playing method and apparatus, because the efficiency of adjusting the playing speed of a video is low when the video is played in the prior art.
In an embodiment of the present invention, a video playing method is provided, including:
acquiring segment wonderful degree of each video segment in a video to be played;
calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment;
determining a segment proportion corresponding to each preset playing speed according to the video wonderful degree, wherein the segment proportion represents that: the number of the video clips to be played at the preset playing speed is in proportion to the total number of the video clips in the video to be played;
determining a preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip;
and playing each video clip at the playing speed of each video clip.
As can be seen from the above, the video highlight degree of the video to be played is determined according to the highlight degree of each video segment, the highlight degree of the video is higher, which means that the highlight video segments in the video are more numerous, and the highlight video segments played at a low speed can enable the user to watch the video content in the highlight video segments in more detail, so that if the video highlight degree of the video to be played is higher, the proportion of the video segment with the lower playing speed in the video segment of the video to be played is higher, which enables the user to watch the video to be played with the higher highlight degree in detail, and if the video highlight degree of the video to be played is lower, the proportion of the video segment with the higher playing speed in the video segment of the video to be played is higher, which enables the overall playing speed of the video to be played to be higher, and saves the time of the user. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. The playing speed of each video clip can be determined by combining the clip proportion corresponding to each preset playing speed, and each video clip is played at the playing speed of each video clip, so that the video clip with higher clip wonderful degree is slower in playing speed, a user can watch the video clip with high clip wonderful degree in detail, know the video content in detail, watch the video clip with low clip wonderful degree roughly, and the watching time is saved. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
The following describes a video playing method and apparatus provided in an embodiment of the present invention with specific embodiments.
Referring to fig. 1, a flow chart of a first video playing method is provided, and specifically, the method includes the following steps S101 to S105.
S101: and acquiring the segment wonderful degree of each video segment in the video to be played.
Specifically, the video to be played may be divided into video segments with the same duration, for example, the duration may be 1 second, 1 minute, and the like.
The duration of the video segments may also be different, and the embodiment of the present invention is not limited in particular.
The segment highlight of each video segment may be a preset highlight.
In addition, since the complete playing of the video clip in the time-series order, the rewinding of the playing back of the video clip indicates that the video clip is more appealing to the user, the high-level of the highlight, the fast-forward playing indicates that the video clip is less appealing to the user, and the low-level of the highlight, the clip highlight of each video clip can be calculated based on the number of times that each video clip is completely played in the time-series order, the number of times that the fast-forward playing is performed, and the number of times that the rewinding of the playing back is performed.
The user does not perform any operation in the process of playing the video clip by the electronic equipment, and the video clip is completely played according to the time sequence.
And if the user operates the electronic equipment to fast forward from the video segment A to the video segment B in the video playing process and continues playing the video from the video segment B, the video segment A is fast-forwarded and played.
The user operates the electronic device to rewind from other video clips to a certain video clip, and plays the video from the rewound video clip, the rewound video clip is rewound to play again, and if the user operates the electronic device to rewind from the video clip B to the video clip A in the video playing process, and plays the video from the video clip A again, the video clip A is rewound to play again.
The segment highlights of the video segments may also be obtained in other manners, and the embodiment of the present invention is not limited in particular.
S102: and calculating the video wonderness of the video to be played according to the segment wonderness of each video segment.
Specifically, the sum, the average, the maximum, and the like of the segment highlights of each video segment may be used as the video highlights of the video to be played, and are not limited specifically.
S103: and determining the segment proportion corresponding to each preset playing speed according to the video wonderful degree.
Wherein, the fragment ratio represents: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played.
Specifically, the sum of the segment ratios corresponding to the preset playing speeds may be 100%.
In addition, the preset playing speed may be a reference speed, 0.5 times the reference speed, 1.5 times the reference speed, or 2 times the reference speed. The reference speed may be 1-time speed, 0.5-time speed of the reference speed may be 0.5-time speed, 1.5-time speed of the reference speed may be 1.5-time speed, 2-time speed of the reference speed may be 2-time speed, and the higher the speed is, the faster the playing speed of the video segment is.
The preset playing speed may also be 24 frames played in 1 second, 48 frames played in 1 second, etc.
The higher the video highlight degree of the video to be played is, the more highlight segments in the video to be played are indicated, and the higher the highlight degree of the video segments played at the slower playing speed can enable the user to watch the highlight segments in more detail, so that if the video to be played with the higher video highlight degree is, the lower the playing speed is, the higher the proportion of the video segments, the user can watch the video content of the video with the higher video highlight degree in detail. Conversely, the lower the video highlight degree of the video to be played is, the more video clips with the low highlight degree of the clip in the video to be played are indicated, and the time of the user can be saved by playing the video clips with the low highlight degree of the clip at the higher playing speed. Therefore, for videos to be played with different video highlights, the segment proportion corresponding to each preset playing speed is different.
Specifically, the video highlight level corresponding to the video highlight level in different intervals may be preset, and the corresponding relationship between each preset playing speed and the segment ratio at different video highlight levels is preset, so that when the segment ratio corresponding to each preset playing speed is determined according to the video highlight level of the video to be played, the interval to which the video highlight level of the video to be played belongs may be determined first, so as to determine the video highlight level to which the video to be played belongs, as the target level, and then the segment ratio corresponding to each preset playing speed at the target level is used as the segment ratio to be determined in S103.
For example, the video highlight level corresponding to the preset video highlight levels of different intervals may be: the video highlight level corresponding to the video to be played with the video highlight level being within the interval of more than 80 is level 1, the video highlight level corresponding to the video to be played with the video highlight level being within the interval of 60-80 is level 2, and the video highlight level corresponding to the video to be played with the video highlight level being within the interval of less than 60 is level 3. The preset corresponding relationship between each preset playing speed and the segment proportion under different video wonderful degree levels can be as follows: the video to be played with the video highlight level of 1 level has a segment proportion corresponding to 1-time speed of 70%, a segment proportion corresponding to 1.5-time speed of 20%, and a segment proportion corresponding to 2-time speed of 10%. The video highlight level is 2, the segment proportion corresponding to 1 time speed is 50%, the segment proportion corresponding to 1.5 time speed is 30%, and the segment proportion corresponding to 2 time speed is 20%. The video highlight level is 35% of the segment corresponding to the 1 × speed, 35% of the segment corresponding to the 1.5 × speed, and 30% of the segment corresponding to the 2 × speed.
In another embodiment of the present invention, the segment ratio corresponding to each preset playing speed can be determined through steps S103A-S103B, which will not be described in detail herein.
S104: and determining a preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip.
Specifically, since the user tends to watch the video clip with the higher segment highlight in detail, if the video clip with the higher segment highlight is played at the slower playing speed, the user can watch the video content in the video clip in detail, so that the playing speed of the video clip with the higher segment highlight can be determined as the preset playing speed with the lower speed value.
In an embodiment of the present invention, the number of segments of the video segments corresponding to each preset playing speed may be determined according to the segment ratio and the total number of the video segments in the video to be played, for example, the video to be played includes 1000 video segments, the segment ratio corresponding to 1 × speed is 70%, the number of segments corresponding to 1 × speed is 700, the segment ratio corresponding to 1.5 × speed is 20%, and the number of segments corresponding to 1.5 × speed is 200.
The number of segments corresponding to the preset playing speed with the lowest speed value is called the first segment number, the number of segments corresponding to the second lower preset playing speed with the speed value is called the second segment number, and so on. Arranging the video clips in the sequence of the highlight degrees of the clips from high to low, determining the playing speed of the video clips with the highest highlight degree and the first clip number as the preset playing speed with the lowest speed value, determining the playing speed of the video clips with the next second clip number as the second low preset playing speed according to the arrangement sequence of the highlight degrees of the clips, and determining the playing speed of each video clip by analogy.
For example, the number of segments corresponding to 1 × speed is 700, the number of segments corresponding to 1.5 × speed is 200, and the number of segments corresponding to 2 × speed is 100, then according to the sequence of the segment highlights of the video segments from high to low, the playing speed of 700 video segments with the highest segment highlight in the video to be played is determined as 1 × speed, the playing speed of the next 200 video segments is determined as 1.5 × speed, and the playing speed of 100 video segments with the lowest segment highlight is determined as 1 × speed.
In another embodiment of the present invention, the video segments may be sequentially arranged from high to low according to segment highlights, and according to a rule that the higher the segment highlights are and the slower the playing speed of the video segments is, according to a segment proportion and a segment proportion of the total number of the video segments in the video to be played to each preset playing speed, the lowest video segment with the lowest segment highlight and the highest video segment with the highest segment highlight in the video segments corresponding to each preset playing speed are determined.
And determining the segment wonderness degree between the corresponding minimum wonderness degree and the highest wonderness degree as a corresponding wonderness degree set aiming at each preset playing speed.
After the highlight degree set is determined, a highlight degree set to which the segment highlight degree of the video segment belongs can be determined and used as a target highlight degree set, and then the preset playing speed corresponding to the target highlight degree set is determined as the playing speed of the video segment.
For example, if it is determined that the lowest highlight corresponding to the obtained 1 × speed is 73 and the highest highlight is 100, the highlight set corresponding to the 1 × speed is a segment highlight of 73 or more and 100 or less. The lowest wonderness degree corresponding to the 1.5 times speed is 45, the highest wonderness degree is 73, and the wonderness degree set corresponding to the 1.5 times speed is that the fragment wonderness degree is more than or equal to 45 and less than 73. The minimum wonderness degree corresponding to the 2-time speed is 0, and the maximum wonderness degree is 45. The highlight set corresponding to the 2 × speed is the segment highlight greater than or equal to 0 and less than 45. If the segment highlight degree of the video segment is 80, 80 is greater than 73 and less than 100, the playing speed of the video segment is determined to be 1-time speed.
S105: and playing each video clip at the playing speed of each video clip.
As can be seen from the above, the video highlight degree of the video to be played is determined according to the highlight degree of each video segment, the highlight degree of the video is higher, which means that the highlight video segments in the video are more numerous, and the highlight video segments played at a low speed can enable the user to watch the video content in the highlight video segments in more detail, so that if the video highlight degree of the video to be played is higher, the proportion of the video segment with the lower playing speed in the video segment of the video to be played is higher, which enables the user to watch the video to be played with the higher highlight degree in detail, and if the video highlight degree of the video to be played is lower, the proportion of the video segment with the higher playing speed in the video segment of the video to be played is higher, which enables the overall playing speed of the video to be played to be higher, and saves the time of the user. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. The playing speed of each video clip can be determined by combining the clip proportion corresponding to each preset playing speed, and each video clip is played at the playing speed of each video clip, so that the video clip with higher clip wonderful degree is slower in playing speed, a user can watch the video clip with high clip wonderful degree in detail, know the video content in detail, watch the video clip with low clip wonderful degree roughly, and the watching time is saved. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
Referring to fig. 2, a flow chart of a second video playing method is provided, which can be implemented by the following steps S103A-S103B in step S103, compared with the foregoing embodiment shown in fig. 1.
S103A: and obtaining the preset content category to which the video content of the video to be played belongs.
Specifically, the content category of the video to be played may be determined according to a preset content category tag of the video to be played or a category of a video channel where the video to be played is located.
For example, the video channel may be a movie channel, a drama channel, an art program channel, a documentary channel, etc., and the content categories of the videos to be played in the video channel may be movies, dramas, art programs, documentaries, etc., respectively, or further, the video channel may also be a love movie channel, a suspense movie channel, a drama channel in the drama channel, a domestic drama channel, etc., in the movie channel, and the content categories of the videos to be played in the video channel may be love movies, suspense movies, dramas, and domestic dramas, respectively.
S103B: and determining a preset proportion set corresponding to the video highlight degree under the content category.
The ratio set includes segment ratios corresponding to each preset playing speed.
Videos of different content categories tend to be different in video highlights, for example, as users watching an art program tend to be more than users watching a documentary, the art program tends to be more highly highlighted for the users than the documentary. If the videos of different content categories all refer to the same proportion set to determine the corresponding relationship between the video highlight degree and the segment proportion, for videos in content categories with generally higher video highlight degree, the proportion of video segments with slower playing speed is generally higher, and for videos in content categories with lower video highlight degree, the proportion of video segments with faster playing speed is generally higher, for example, there are generally more video segments with slower playing speed in the art program, and there are generally more video segments with faster playing speed in the documentary. Therefore, the preset proportion set corresponding to the video highlights can be different for different content categories.
For example, for a variety program, the video to be played with the video highlight degree in the interval greater than 80 corresponds to the proportion set 1, the video to be played with the video highlight degree in the interval between 60 and 80 corresponds to the proportion set 2, and the video to be played with the video highlight degree in the interval less than 60 corresponds to the proportion set 3.
For the documentary, the video to be played with the video highlight degree in the interval greater than 70 corresponds to the proportion set 1, the video to be played with the video highlight degree in the interval between 40 and 70 corresponds to the proportion set 2, and the video to be played with the video highlight degree in the interval less than 40 corresponds to the proportion set 3.
The ratio set 1 is: the proportion of the segments corresponding to 1 time speed is 70%, the proportion of the segments corresponding to 1.5 times speed is 20%, and the proportion of the segments corresponding to 2 times speed is 10%. The ratio set 2 is: the proportion of the segments corresponding to 1 time speed is 50%, the proportion of the segments corresponding to 1.5 times speed is 30%, and the proportion of the segments corresponding to 2 times speed is 20%. The ratio set 3 is: the fraction of segments corresponding to 1 time speed is 35%, the fraction of segments corresponding to 1.5 times speed is 35%, and the fraction of segments corresponding to 2 times speed is 30%.
As can be seen from the above, since the video highlights of the videos of different content categories are often different, different ratio sets are set for the videos of different content categories according to the general situation of the video highlights of the videos of the content categories, and the video to be played can determine the playing speed of each video segment according to the different ratio sets, so that the determined playing speed conforms to the characteristics of the content category to which the video to be played belongs, and the accuracy of the determined playing speed can be improved.
Because the determined playing speeds of the video segments are different, the different video segments can be played at different playing speeds in the process of playing the video segments, but if the playing speed is frequently switched in the process of playing the video to be played, the experience of watching the video of a user is poorer, and therefore, in order to prevent the playing speed from being frequently switched, the determined playing speed of each video segment can be corrected.
Referring to fig. 3, a flow chart of a third video playing method is provided in the embodiment of the present invention, and compared with the foregoing embodiment shown in fig. 1, the method further includes the following steps S106 to S107 after the above step S104.
S106: individual clusters of video segments are determined.
The video clip playing speed in each video clip cluster is the same, and the cluster playing speed of the adjacent video clip clusters is different.
The cluster playing speed of the video clip cluster is as follows: the playback speed of the video segments in the video segment cluster.
Because the playing speed cannot be switched in the process of playing the video clips which are adjacent in sequence and have the same playing speed, namely the problem of frequently switching the playing speed cannot occur, the playing speed can be switched only in the process of playing the video clips which are adjacent but have different playing speeds, the video clips which are adjacent in sequence and have the same playing speed can be determined to be a video clip cluster, the cluster playing speeds of the adjacent video clip clusters are different, and each video clip cluster is used as the minimum unit in the process of correcting the playing speed.
For example, in the video segments 1 to 10 which are adjacent in sequence, the playing speeds of the video segments 1 to 5 are all 1 time speed, the playing speeds of the video segments 6 to 8 are all 2 times speed, and the playing speeds of the video segments 9 to 10 are all 1 time speed, so that the obtained video segment cluster 1 is determined to include the video segments 1 to 5, and the cluster playing speed of the video segment cluster 1 is 1 time speed; the video clip cluster 2 comprises video clips 6-8, and the cluster playing speed of the video clip cluster 2 is 2 times of the speed; the video clip cluster 3 comprises video clips 9-10, and the cluster playing speed of the video clip cluster 3 is 1 time speed.
S107: and sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster, and correcting the playing speed of the video segments contained in the first video segment cluster and the second video segment cluster to be the same playing speed.
Wherein the cluster duration is: the sum of the time lengths of the video clips in the video clip cluster, where the first video clip cluster is: and the video segment cluster with the cluster time length smaller than the preset time length.
Specifically, the time sequence order may be a time sequence order from the front to the back of the video clip cluster in the video to be played according to the playing sequence, or may be a time sequence order from the back to the front of the video clip cluster in the video to be played according to the playing sequence.
The video segment clusters can be sequentially determined from the first video segment cluster according to the time sequence until the sum of the cluster time length of the first video segment cluster and the determined video segment cluster reaches the preset time length, and the determined video segment cluster is used as the second video segment cluster.
Since the playing speeds of the video clips in the video clip clusters are the same as each other, the playing speed does not change in the process of playing one video clip cluster, that is, the playing speed does not change within the cluster duration of the video clip cluster. If the cluster duration of the video segment cluster is greater than the preset duration, it is indicated that the playing speed of the video will not change at least within the time of the preset duration when the video segment cluster is played, so that the problem of poor user experience caused by frequent switching of the playing speed will not occur, and the playing speed of the video segments in the video segment cluster with the cluster duration greater than the preset duration does not need to be corrected.
On the contrary, if the cluster duration of the video segment cluster is less than the preset duration, it indicates that the time for playing the video segment cluster does not reach the preset duration, the playing speed needs to be switched to play the next video segment cluster, and the problem of poor user experience due to frequent switching of the playing speed can occur, so that the playing speed of each video segment in the video segment cluster needs to be corrected under the condition that the cluster duration of the video segment cluster is less than the preset duration.
For example, the preset time period may be 5 minutes.
If the video segment clusters 1-4 are adjacent in sequence according to the arrangement sequence of the video segment clusters, wherein the cluster time of the video segment cluster 1 is 6 minutes, the cluster time of the video segment cluster 2 is 3 minutes, the cluster time of the video segment cluster 3 is 1 minute, and the cluster time of the video segment cluster 4 is 3 minutes.
The cluster time length of the video segment cluster 1 is 6 minutes, which indicates that when the video segment cluster 1 is played, the playing speed of the video within 6 minutes does not change, and the time length for which the playing speed is kept unchanged is greater than the preset time length by 5 minutes, so that the playing speed of each video segment in the video segment cluster 1 does not need to be corrected.
The cluster time length of the video segment cluster 2 is 3 minutes, which means that when the video segment cluster 2 is played, the playing speed of the video is switched to the cluster playing speed of the video segment cluster 3 after 3 minutes, the time length of the constant playing speed is less than the preset time length for 5 minutes, the video segment cluster 2 is taken as the first video segment cluster, the cluster time length of the video segment cluster 2-the video segment cluster 4 is accumulated to be 7 minutes, the preset time length is reached to be 5 minutes, thus, the video segment cluster 3 and the video segment cluster 4 are determined as the second video segment cluster, the playback speeds of the video segments included in the video segment cluster 2-the video segment cluster 4 are corrected to the same playback speed, therefore, the playing speed of the video cannot be changed in the 7-minute process of playing the video clip cluster 2-the video clip cluster 4, and the problem of poor user experience caused by frequent switching of the playing speed is solved.
In an embodiment of the present invention, the playing speeds of the video clips included in the first video clip cluster and the second video clip cluster may be modified to the same playing speed through the following steps E to F.
Step E: and calculating the sum of the cluster time lengths of the video segment clusters with the cluster playing speed same as the preset playing speed in the first video segment cluster and the second video segment cluster aiming at each preset playing speed.
Because the cluster playing speeds of the adjacent video segment clusters are different, but the cluster playing speeds of the non-adjacent video segment clusters may be the same, and the second video segment cluster are sequentially adjacent video segment clusters, if only 1 of the second video segment cluster exists, the playing speeds of the first video segment cluster and the second video segment cluster are different. However, if the number of the second video segment clusters is more than 1, video segment clusters with the same cluster playing speed may exist in the first video segment cluster and the second video segment cluster, and in the process of correcting the playing speed of the video segments in the video segment clusters, the video segment clusters with the same cluster playing speed may be corrected together.
For example, if there are a first video segment cluster 1 with a cluster time length of 2 minutes, a second video segment cluster 2 with a cluster time length of 2 minutes, and a second video segment cluster 3 with a cluster time length of 3 minutes, the cluster play speeds of the first video segment cluster 1 and the second video segment cluster 3 are 2 times speed, and the cluster play speed of the second video segment cluster 2 is 1 time speed, the sum of the cluster time lengths of the video segment clusters with the cluster play speeds of 2 times speed is 5 minutes, and the sum of the cluster time lengths of the video segment clusters with the cluster play speed of 1 time speed is 2 minutes.
Step F: and correcting the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster and having the playing speed different from the longest playing speed to be the longest playing speed.
Wherein, the longest play speed: the preset playing speed with the maximum cluster duration sum.
The playing speed of the video clips contained in the first video clip cluster and the second video clip cluster is corrected to the preset playing speed with the maximum cluster duration sum, so that the sum of the duration sum of the corrected video clips is the shortest, and the difference between the corrected video clip and the originally determined playing speed of the video clip is smaller.
In another embodiment of the present invention, the playing speeds of the video clips included in the first video clip cluster and the second video clip cluster may be modified to the same playing speed through the following steps G to J.
Step G: and determining a fourth video segment cluster with the maximum cluster playing speed value in the first video segment cluster and the second video segment cluster.
Since there may be a video segment cluster having the same cluster play speed in the first video segment cluster and the second video segment cluster, there may be a plurality of fourth video segment clusters having the largest cluster play speed value.
Step H: a ratio between the sum of the cluster durations of the fourth video segment cluster and the sum of the cluster durations of the first video segment cluster and the second video segment cluster is calculated.
Specifically, the sum of the cluster time durations of the fourth video segment cluster and the sum of the cluster time durations of the first video segment cluster and the second video segment cluster may be respectively counted, and then the ratio may be calculated.
For example, if the cluster time lengths of the fourth video segment cluster are 1 minute and 3 minutes, respectively, the cluster time length sum of the fourth video segment cluster is 4 minutes, the cluster time lengths of the first video segment cluster and the second video segment cluster are 1 minute, 2 minutes and 3 minutes, respectively, the cluster time length sum of the first video segment cluster and the second video segment cluster is 6 minutes, and the ratio is 66.7%.
Step I: and if the ratio is larger than a preset ratio, correcting the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster in the first video clip cluster and the second video clip cluster to be the cluster playing speed of the fourth video clip cluster.
For example, the preset ratio may be 70%.
Under the condition that the ratio is greater than the preset ratio, the ratio of the video clips with large playing speed values in the video clips contained in the first video clip cluster and the second video clip cluster is larger, so that the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster and contained in the first video clip cluster and the second video clip cluster is corrected to be the playing speed with large speed values, the corrected playing speed values of the video clips are larger, and the corrected playing speed values are consistent with the condition that the total playing speed of the video clips is determined to be higher originally.
Step J: and if the ratio is not greater than the preset ratio, correcting the playing speed of the video clips in the video clip clusters except the fifth video clip cluster in the first video clip cluster and the second video clip cluster to be the cluster playing speed of the fifth video clip cluster.
The fifth video segment cluster is: and the video clip cluster with the minimum cluster playing speed value in the first video clip cluster and the second video clip cluster.
Because the ratio of the video clips contained in the first video clip cluster and the second video clip cluster is smaller than the preset ratio, and because the user may not be able to view all the contents in the video in detail when playing the video at the playing speed with the larger value, the playing speed of the video clip in the video clip cluster other than the fifth video clip cluster contained in the first video clip cluster and the second video clip cluster is corrected to the cluster playing speed of the fifth video clip cluster with the smallest value under the condition that the ratio of the video clip with the larger value is smaller, so as to ensure that the user can view the contents in the video in detail.
Therefore, the playing speed of the video clips is corrected, so that the time length of the video clips with the same playing speed and the preset time length are sequentially arranged according to the time sequence of each video clip, the playing speed can be switched only after the video is continuously played at the same playing speed and the preset time length is reached in the process of playing the video, the playing speed cannot be frequently switched in a short time, and the experience of watching the video by a user can be improved.
Referring to fig. 4, a flowchart of a fourth video playing method is provided, and compared with the foregoing embodiment shown in fig. 1, before step S102, the following step S108 is further included.
S108: and determining the popularity of the video to be played among various users.
Specifically, the more the number of times of playing or the number of times of being commented of the video to be played, the more popular the video to be played among the users, and the higher the popularity of the video to be played, the popularity may be represented by data such as the number of times of playing and the number of times of being commented.
For example, the number of plays and the number of times to be commented may be weighted and summed, and the result of the weighted summation may be regarded as the popularity.
The popularity of a video to be played is higher than the popularity of a video to be played, which indicates that the video to be played is more popular, so that the popularity can be used for determining the video popularity of the video to be played.
The segment wonderness degree respectively represents the wonderness degree of each video segment, the higher the overall level of the segment wonderness degree is, the higher the video wonderness degree is, the higher the popularity degree of the video to be played is, and the higher the video wonderness degree is, so that the wonderness degree of the segment and the popularity degree of the video to be played both influence the video wonderness degree, and the video wonderness degree of the video to be played can be calculated together according to the segment wonderness degree and the popularity degree.
Therefore, the above step S102 can be realized by the following step S102A.
S102A: and calculating the video wonderness degree of the video to be played according to the target expression according to the segment wonderness degree of each video segment and the popularity degree of the video to be played.
Wherein, the target expression is:
wherein W is the video highlight, C is the popularity,is the average of the segment highlights, m andis a preset parameter.
As can be seen from the above formula, the larger the value of C,the closer to 1 the value of (a) is,the closer to 0 the value of (a), the higher the popularity of the video to be played, the closer to the above average the video highlights of the video to be played. In the case where C is small, i.e., the popularity of the video to be played is low,the size of the composite material is small,larger, thenThe value of (2) is larger, so that under the condition that the popularity of the video to be played is lower but the highlight degree of the video segment is higher, the difference between the highlight degree of the video obtained by calculation through the formula and the highlight degree of the video to be played with higher popularity is smaller.
In another embodiment of the present invention, the average value of the segment highlights of each video segment and the popularity may be weighted to obtain the video highlights of the video to be played.
As can be seen from the above, compared with the method that the highlight degree of the video to be played is determined only by using the highlight degree of each video segment, the highlight degree of the video to be played is determined by using the highlight degree of each video segment in the video to be played and the popularity degree of the video to be played together, for a user, the highlight degree of the video with high popularity is often higher, and the highlight degree of the video to be played can be determined according to the popularity degree. The embodiment of the invention considers the popularity of the video to be played on the basis of the highlight degree of the segments, so that the highlight degree of the video determined by the method is more accurate.
Corresponding to the video playing method, the embodiment of the invention also provides a video playing device.
Referring to fig. 5, an embodiment of the present invention provides a schematic structural diagram of a first video playing apparatus, specifically, the apparatus includes:
a degree obtaining module 501, configured to obtain segment highlights of each video segment in a video to be played;
a degree calculating module 502, configured to calculate a video highlight degree of the video to be played according to the segment highlight degree of each video segment;
a ratio determining module 503, configured to determine, according to the video highlight, a segment ratio corresponding to each preset playing speed, where the segment ratio indicates: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played;
a speed determining module 504, configured to determine, according to the determined segment proportion and the segment highlight degree of each video segment, a preset playing speed corresponding to each video segment, as a playing speed of the video segment;
and a segment playing module 505, configured to play each video segment at the playing speed of each video segment.
As can be seen from the above, the video highlight degree of the video to be played is determined according to the highlight degree of each video segment, the highlight degree of the video is higher, which means that the highlight video segments in the video are more numerous, and the highlight video segments played at a low speed can enable the user to watch the video content in the highlight video segments in more detail, so that if the video highlight degree of the video to be played is higher, the proportion of the video segment with the lower playing speed in the video segment of the video to be played is higher, which enables the user to watch the video to be played with the higher highlight degree in detail, and if the video highlight degree of the video to be played is lower, the proportion of the video segment with the higher playing speed in the video segment of the video to be played is higher, which enables the overall playing speed of the video to be played to be higher, and saves the time of the user. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. The playing speed of each video clip can be determined by combining the clip proportion corresponding to each preset playing speed, and each video clip is played at the playing speed of each video clip, so that the video clip with higher clip wonderful degree is slower in playing speed, a user can watch the video clip with high clip wonderful degree in detail, know the video content in detail, watch the video clip with low clip wonderful degree roughly, and the watching time is saved. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
In an embodiment of the present invention, the ratio determining module 503 is specifically configured to:
acquiring a preset content category to which the video content of the video to be played belongs;
and determining a preset proportion set corresponding to the video highlight degree under the content category, wherein the proportion set comprises a segment proportion corresponding to each preset playing speed.
As can be seen from the above, since the video highlights of the videos of different content categories are often different, different ratio sets are set for the videos of different content categories according to the general situation of the video highlights of the videos of the content categories, and the video to be played can determine the playing speed of each video segment according to the different ratio sets, so that the determined playing speed conforms to the characteristics of the content category to which the video to be played belongs, and the accuracy of the determined playing speed can be improved.
Referring to fig. 6, a schematic structural diagram of a second video playback apparatus is provided, where the apparatus further includes:
a segment cluster determining module 506, configured to determine each video segment cluster after the speed determining module 504 determines the playing speed of each video segment, where the playing speed of the video segments in each video segment cluster is the same; the cluster playing speeds of adjacent video clip clusters are different, and the cluster playing speeds of the video clip clusters are as follows: the playing speed of the video clips in the video clip cluster;
a speed modification module 507, configured to sequentially determine, according to a time sequence order of each video segment cluster, each second video segment cluster in which a cluster time length added to a cluster time length of a first video segment cluster reaches a preset time length, and modify the playing speeds of video segments included in the first video segment cluster and the second video segment cluster to be the same playing speed, where the cluster time length is: the sum of the time lengths of the video clips in the video clip cluster, where the first video clip cluster is: and the video segment cluster with the cluster time length smaller than the preset time length.
In an embodiment of the present invention, the speed correction module 508 is specifically configured to:
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster;
calculating the sum of cluster time lengths of video segment clusters with the cluster playing speed same as the preset playing speed in the first video segment cluster and the second video segment cluster aiming at each preset playing speed;
correcting the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster and having the playing speed different from the longest playing speed to be the longest playing speed, wherein the longest playing speed is as follows: the preset playing speed with the maximum cluster duration sum.
In another embodiment of the present invention, the speed correction module 507 is specifically configured to:
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster;
determining a fourth video clip cluster with the maximum cluster playing speed value in the first video clip cluster and the second video clip cluster;
calculating the ratio of the sum of the cluster time lengths of the fourth video segment cluster to the sum of the cluster time lengths of the first video segment cluster and the second video segment cluster;
if the ratio is larger than a preset ratio, correcting the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster in the first video clip cluster and the second video clip cluster to be the playing speed of the fourth video clip cluster;
if the ratio is not greater than the preset ratio, modifying the playing speed of the video clips in the video clip clusters except for the fifth video clip cluster in the first video clip cluster and the second video clip cluster to the cluster playing speed of the fifth video clip cluster, wherein the fifth video clip cluster is as follows: and the video clip cluster with the minimum cluster playing speed value in the first video clip cluster and the second video clip cluster.
Therefore, the playing speed of the video clips is corrected, so that the time length of the video clips with the same playing speed and the preset time length are sequentially arranged according to the time sequence of each video clip, the playing speed can be switched only after the video is continuously played at the same playing speed and the preset time length is reached in the process of playing the video, the playing speed cannot be frequently switched in a short time, and the experience of watching the video by a user can be improved.
Referring to fig. 7, a schematic structural diagram of a third video playback apparatus is provided, which further includes, compared to the foregoing embodiment shown in fig. 5:
a degree determining module 508, configured to determine popularity of the video to be played among the users before the degree estimating module 502 calculates the video highlights of the video to be played;
the above-mentioned degree calculating module 502 is configured to calculate the video highlight degree of the video to be played according to the following expression, according to the segment highlight degree of each video segment and the popularity degree of the video to be played:
wherein W is the video highlight level, C is the popularity level,is the average of the degrees of wonderness of the individual video segments, m andis a preset parameter.
As can be seen from the above, compared with the method that the highlight degree of the video to be played is determined only by using the highlight degree of each video segment, the highlight degree of the video to be played is determined by using the highlight degree of each video segment in the video to be played and the popularity degree of the video to be played together, for a user, the highlight degree of the video with high popularity is often higher, and the highlight degree of the video to be played can be determined according to the popularity degree. The embodiment of the invention considers the popularity of the video to be played on the basis of the highlight degree of the segments, so that the highlight degree of the video determined by the method is more accurate.
An embodiment of the present invention further provides an electronic device, as shown in fig. 8, which includes a processor 801, a communication interface 802, a memory 803, and a communication bus 804, where the processor 801, the communication interface 802, and the memory 803 complete mutual communication through the communication bus 804,
a memory 803 for storing a computer program;
the processor 801 is configured to implement the method steps described in any of the embodiments of the video playing method when executing the program stored in the memory 803.
When the electronic equipment provided by the embodiment of the invention is used for playing videos, the segment wonderness degree of each video segment in the video to be played is obtained, the video wonderness degree of the video to be played is calculated according to the segment wonderness degree of each video segment, the segment proportion corresponding to each preset playing speed is determined according to the video wonderness degree, the playing speed of each video segment is determined according to the determined segment proportion and the segment wonderness degree of each video segment, and each video segment is played at the playing speed of each video segment. The video highlight degree of the video to be played is determined according to the highlight degree of each video clip, the highlight degree of the video is higher, the highlight video clips in the video are more, the highlight video clips played at a low speed can enable a user to watch the video content in the highlight video clips in more detail, therefore, if the highlight degree of the video to be played is higher, the proportion of the video clip with the lower playing speed in the video clips of the video to be played is higher, the user can watch the video to be played with the higher highlight degree of the video in more detail, if the highlight degree of the video to be played is lower, the proportion of the video clip with the higher playing speed in the video clips of the video to be played is higher, the overall playing speed of the video to be played is higher, and the time of the user is saved. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. And determining the playing speed of each video clip by combining the clip proportion corresponding to each preset playing speed, and playing each video clip at the playing speed of each video clip. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
In another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the method steps of any of the above-mentioned video playing method embodiments.
When a video is played by using a computer program image stored in a computer readable storage medium provided in this embodiment, segment wonderness of each video segment in a video to be played is obtained, the video wonderness of the video to be played is calculated according to the segment wonderness of each video segment, a segment proportion corresponding to each preset playing speed is determined according to the video wonderness, a playing speed of each video segment is determined according to the determined segment proportion and the segment wonderness of each video segment, and each video segment is played at the playing speed of each video segment. The video highlight degree of the video to be played is determined according to the highlight degree of each video clip, the highlight degree of the video is higher, the highlight video clips in the video are more, the highlight video clips played at a low speed can enable a user to watch the video content in the highlight video clips in more detail, therefore, if the highlight degree of the video to be played is higher, the proportion of the video clip with the lower playing speed in the video clips of the video to be played is higher, the user can watch the video to be played with the higher highlight degree of the video in detail, if the highlight degree of the video to be played is lower, the proportion of the video clip with the higher playing speed in the video clips of the video to be played is higher, the overall playing speed of the video to be played is higher, and the time of the user is saved. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. The playing speed of each video clip can be determined by combining the clip proportion corresponding to each preset playing speed, and each video clip is played at the playing speed of each video clip. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
In a further embodiment of the present invention, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method steps as described in any of the video playback method embodiments above.
When the computer program product provided by this embodiment plays a video, the segment highlight degree of each video segment in the video to be played is obtained, the video highlight degree of the video to be played is calculated according to the segment highlight degree of each video segment, a segment ratio corresponding to each preset playing speed is determined according to the video highlight degree, the playing speed of each video segment is determined according to the determined segment ratio and the segment highlight degree of each video segment, and each video segment is played at the playing speed of each video segment. The video highlight degree of the video to be played is determined according to the highlight degree of each video clip, the highlight degree of the video is higher, the highlight video clips in the video are more, the highlight video clips played at a low speed can enable a user to watch the video content in the highlight video clips in more detail, therefore, if the highlight degree of the video to be played is higher, the proportion of the video clip with the lower playing speed in the video clips of the video to be played is higher, the user can watch the video to be played with the higher highlight degree of the video in detail, if the highlight degree of the video to be played is lower, the proportion of the video clip with the higher playing speed in the video clips of the video to be played is higher, the overall playing speed of the video to be played is higher, and the time of the user is saved. In view of this, the video highlights are different, the segment proportion corresponding to each preset playing speed in the video to be played is different, and the segment proportion corresponding to each preset playing speed can be determined according to the video highlights of the video to be played.
On the basis, for each video clip in the video to be played, the low clip wonderful degree of the video clip indicates that the user is generally not happy to watch the video clip, so that the video clip with the low clip wonderful degree can be played quickly to save the time of the user. On the contrary, the high segment highlights of the video segment indicate that the user is generally happy to watch the video segment, so that the video segment with the high segment highlights can be played at a slow speed, so that the user can watch the video content in the video segment in detail. Therefore, the lower the highlight degree of the segment is, the higher the value of the preset playing speed corresponding to the video segment is, and the higher the highlight degree of the segment is, the lower the value of the preset playing speed corresponding to the video segment is. And determining the playing speed of each video clip by combining the clip proportion corresponding to each preset playing speed, and playing each video clip at the playing speed of each video clip. Therefore, in the process of playing the video by applying the scheme provided by the embodiment of the invention, the user does not need to manually adjust the video playing speed, and different video clips can be played at different playing speeds according to the clip wonderful degree of the video clips, so that the time for the user to adjust the video playing speed is saved, and the efficiency for adjusting the video playing speed is improved.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus, the electronic device, the computer-readable storage medium and the computer program product, since they are substantially similar to the method embodiments, the description is relatively simple, and in relation to them, reference may be made to the partial description of the method embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A video playback method, the method comprising:
acquiring segment wonderful degree of each video segment in a video to be played;
calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment;
determining a segment proportion corresponding to each preset playing speed according to the video wonderful degree, wherein the segment proportion represents that: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played;
determining a preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip;
and playing each video clip at the playing speed of each video clip.
2. The method according to claim 1, wherein the determining the segment ratio corresponding to each preset playing speed according to the video highlights comprises:
acquiring a preset content category to which the video content of the video to be played belongs;
and determining a preset proportion set corresponding to the video highlight degree under the content category, wherein the proportion set comprises a segment proportion corresponding to each preset playing speed.
3. The method according to claim 1 or 2, wherein after determining the preset playing speed corresponding to each video segment as the playing speed of the video segment according to the determined segment proportion and the segment highlight degree of each video segment, the method further comprises:
determining each video clip cluster, wherein the playing speed of the video clips in each video clip cluster is the same; the cluster playing speeds of adjacent video clip clusters are different, and the cluster playing speeds of the video clip clusters are as follows: the playing speed of the video clips in the video clip cluster;
sequentially determining each second video segment cluster of which the cluster time length added and accumulated with the cluster time length of the first video segment cluster reaches the preset time length according to the time sequence of each video segment cluster, and correcting the playing speed of the video segments contained in the first video segment cluster and the second video segment cluster to be the same playing speed, wherein the cluster time length is as follows: the sum of the time lengths of the video clips in the video clip cluster, where the first video clip cluster is: and the video segment cluster with the cluster time length smaller than the preset time length.
4. The method according to claim 3, wherein said modifying the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster to the same playing speed comprises:
calculating the sum of cluster time lengths of video segment clusters with the cluster playing speed same as the preset playing speed in the first video segment cluster and the second video segment cluster aiming at each preset playing speed;
correcting the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster and having the playing speed different from the longest playing speed to be the longest playing speed, wherein the longest playing speed is as follows: the preset playing speed with the maximum cluster duration sum.
5. The method according to claim 3, wherein said modifying the playing speed of the video clips contained in the first video clip cluster and the second video clip cluster to the same playing speed comprises:
determining a fourth video clip cluster with the maximum cluster playing speed value in the first video clip cluster and the second video clip cluster;
calculating the ratio of the sum of the cluster time lengths of the fourth video segment cluster to the sum of the cluster time lengths of the first video segment cluster and the second video segment cluster;
if the ratio is larger than a preset ratio, correcting the playing speed of the video clips contained in the video clip clusters except the fourth video clip cluster in the first video clip cluster and the second video clip cluster to be the cluster playing speed of the fourth video clip cluster;
if the ratio is not greater than the preset ratio, modifying the playing speed of the video clips in the video clip clusters except for the fifth video clip cluster in the first video clip cluster and the second video clip cluster to the cluster playing speed of the fifth video clip cluster, wherein the fifth video clip cluster is as follows: and the video clip cluster with the minimum cluster playing speed value in the first video clip cluster and the second video clip cluster.
6. The method according to claim 1, wherein before said calculating the video highlight of the video to be played according to the segment highlight of each video segment, further comprising:
determining the popularity of the video to be played in each user;
the calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment comprises the following steps:
calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment and the popularity degree of the video to be played according to the following expression:
7. A video playback apparatus, comprising:
the degree obtaining module is used for obtaining the fragment wonderful degree of each video fragment in the video to be played;
the degree calculation module is used for calculating the video wonderness degree of the video to be played according to the segment wonderness degree of each video segment;
a ratio determining module, configured to determine, according to the video highlight, a segment ratio corresponding to each preset playing speed, where the segment ratio indicates: the number of the video clips to be played at the preset playing speed accounts for the proportion of the total number of the video clips in the video to be played;
the speed determining module is used for determining the preset playing speed corresponding to each video clip as the playing speed of the video clip according to the determined clip proportion and the clip wonderful degree of each video clip;
and the clip playing module is used for playing each video clip at the playing speed of each video clip.
8. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1-6 when executing a program stored in the memory.
9. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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