CN113784196B - Automatic rhythm display method and system for video effect elements - Google Patents
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Abstract
The invention is suitable for the field of computers, and provides a method and a system for automatically showing rhythm of video effect elements.A video material to which the effect elements are added is firstly imported into a processing window when a video with special effect display is manufactured; then extracting audio information in the video material, and analyzing volume information in the audio information; adding effect elements to an overlay window above the video material; then, controlling the effect elements to rhythm with the audio information in the superposition window according to the volume information; and combining the overlapping window and the processing window in an overlapping manner, and exporting the video material with the effect element. The volume information is automatically extracted by the system, the user can complete the control of the rhythm effect of the effect element only by adding the volume information to the effect element, the user does not need to perform excessive operation, and the interestingness of the display of the effect element can be increased, so that the video is more interesting and attractive.
Description
Technical Field
The invention belongs to the field of computers, and particularly relates to a method and a system for displaying automatic rhythm of a video effect element.
Background
Short video is a mode of internet content transmission, generally transmitted on new internet media platforms, and is suitable for video transmission content which is watched under a mobile state and a short-time leisure state, has a time length from several seconds to several minutes, is generally controlled within three minutes, and is pushed at high frequency. Because the content is short, the content can be individually sliced or can be a series of columns. The short video has the characteristics of simple production flow, low manufacturing threshold, short manufacturing period, strong participation and the like, and becomes a future development wind vane of the mobile video.
Because the participation threshold of the short video is low, the identity of the creator is diversified, the content label is diversified, the making mode is all-round, and higher requirements are put forward on the convenience of video making.
The fierce competition makes the short video market a lot of fire and heat, and not only the old brand short video platforms can be killed each other, but also the new and beautiful platform melon flow rate. How to separate from a plurality of short video software becomes a problem which needs to be solved urgently by each internet platform. The existing video production process is complicated, the display mode of adding effect elements is single and not vivid enough, the attraction to users is not enough, and the user quantity and the use quantity are not obviously increased.
Disclosure of Invention
The embodiment of the invention provides a method and a system for displaying video effect elements in an automatic rhythm mode, and aims to solve the problems that the existing video production process is complicated, the display mode of adding effect elements is single and not vivid enough, the attraction to users is not enough, and the user quantity and the use quantity are not obviously increased.
The embodiment of the invention is realized in such a way that, on one hand, an automatic rhythm display method for video effect elements comprises the following steps:
importing the video material to which the effect elements are to be added into a processing window;
extracting audio information in the video material, and analyzing volume information in the audio information;
adding effect elements to an overlay window above the video material;
controlling the effect elements to rhythm with the audio information in the superimposed window according to the volume information;
and combining the overlapping window and the processing window in an overlapping manner, and exporting the video material with the effect element.
As a modified scheme of the invention: after the video material to which the effect element is to be added is imported into the processing window, the method further comprises:
judging whether the attribute value of the video material to which the effect element is to be added is greater than a specified upper limit value; the attribute values comprise duration of the video materials and occupied space values of the video materials;
when the attribute value of the video material is larger than a specified upper limit value, generating compressed trimming information; the compressed trimming information comprises the exceeding duration or/and the exceeding occupied space value of the video material;
and according to the compression trimming information, performing compression trimming on the video material.
As another improvement of the invention: the compressing and trimming the video material according to the compression trimming information specifically comprises:
automatically generating a pruning ruler or/and a compression degree value according to the exceeding time length of the video material or/and the exceeding occupied space value in the compression pruning information;
and adding the trimming ruler to the duration track where the video material is located, moving the trimming ruler, confirming the position of the trimming ruler on the duration track of the video material or/and compressing the video material according to the compression degree value.
As a further scheme of the invention: when the trimming ruler moves on the video material track, the trimming ruler is integrally dragged or the trimming ruler is split into a plurality of sections to move respectively; the using length of the trimming ruler is not less than the initial length of the trimming ruler.
As a further scheme of the invention: the extracting the audio information in the video material and analyzing the volume information in the audio information specifically includes:
extracting audio information in the video material, and analyzing a volume fluctuation curve, a drum point position and a drum point decibel relative value in the audio information;
and adding the decibel relative value of the drum point to the volume fluctuation curve according to the position of the drum point to form a whole law trend.
As an optimization scheme of the invention: the adding of the effect element to the overlay window above the video material specifically includes:
adding one or more effect elements to the overlay window;
initial position information of each effect element in the overlay window is recorded.
As another scheme of the invention: the rhythm of the effect element along with the audio information in the superimposed window according to the volume information specifically comprises:
adding a whole-stroke rhythm or volume fluctuation curve or a intercepted part of the volume fluctuation curve or the intercepted part of the whole-stroke rhythm curve to each effect element in a one-key mode or respectively;
the effect element moves or/and amplifies relative to the initial position information according to the whole rhythm or volume fluctuation curve added to the effect element or the intercepted part of the volume fluctuation curve or the intercepted part of the whole rhythm fluctuation curve fluctuation condition; the fluctuation value of the volume fluctuation curve controls the moving distance and the moving direction of the effect element relative to the initial position, and the drum point decibel relative value controls the magnification or reduction times of the effect element; the volume fluctuation curve changes quickly and slowly, and the jumping speed of the effect elements is controlled.
In another aspect, a video effect element automated rhythm presentation system comprises:
the video material importing module is used for importing the video material to which the effect elements are to be added into the processing window;
the audio analysis module is used for extracting audio information in the video material and analyzing volume information in the audio information;
the effect element adding module is used for adding effect elements into an overlapping window above the video material;
the rhythm control module is used for controlling the effect elements to rhythm along with the audio information in the superposition window according to the volume information;
and the superposition combination module is used for superposing and combining the superposition window and the processing window and exporting the video material with the effect elements.
The invention has the beneficial effects that: when a video with special effect display is manufactured, firstly, a video material to which an effect element is to be added is imported into a processing window; then extracting audio information in the video material, and analyzing volume information in the audio information; adding effect elements to an overlay window above the video material; then, controlling the effect elements to rhythm with the audio information in the superposition window according to the volume information; and combining the overlapping window and the processing window in an overlapping manner, and exporting the video material with the effect element. The volume information is automatically extracted by the system, the user can complete the control of the rhythm effect of the effect element only by adding the volume information to the effect element, the user does not need to perform excessive operation, and the interestingness of the display of the effect element can be increased, so that the video is more interesting and attractive. The problem of current video preparation process comparatively loaded down with trivial details, the show mode that adds effect element is single, not lively enough, and is not enough to user's appeal, lead to user's volume and use amount to increase inconspicuously is solved.
Drawings
FIG. 1 is a main flow diagram of a method for automatically rhythm presenting a video effect element;
FIG. 2 is a video material import flow diagram of a method for automatic rhythm presentation of video effect elements;
FIG. 3 is a flow chart of the volume information analysis of a method for automatically rhythm presentation of video effect elements;
FIG. 4 is a rhythm control flow diagram of a method for automatic rhythm presentation of video effect elements;
fig. 5 is a schematic diagram of an internal structure of an automatic rhythm display system for video effect elements.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
When a video with special effect display is manufactured, firstly, a video material to which effect elements are to be added is imported into a processing window; then extracting audio information in the video material, and analyzing volume information in the audio information; adding effect elements to an overlay window above the video material; then, controlling the effect elements to rhythm with the audio information in the superposition window according to the volume information; and combining the overlapping window and the processing window in an overlapping manner, and exporting the video material with the effect element. The volume information is automatically extracted by the system, the user can complete the control of the rhythm effect of the effect element only by adding the volume information to the effect element, the user does not need to perform excessive operation, and the interestingness of the display of the effect element can be increased, so that the video is more interesting and attractive. The problem of current video preparation process comparatively loaded down with trivial details, the show mode that adds effect element is single, not lively enough, and is not enough to user's appeal, lead to user's volume and use amount to increase inconspicuously is solved.
Fig. 1 shows a main flow diagram of a video effect element automatic rhythm presentation method according to an embodiment of the present invention, the video effect element automatic rhythm presentation method including:
step S10: the video material to which the effect element is to be added is imported into the processing window. The video material is guided into the processing window, so that when the effect elements are added subsequently, the positions of the video material to which the effect elements are added can be better seen, in addition, as each video making and publishing platform has certain requirements on the length and quality of the video and the occupation of a memory, the video material needs to be processed for too long or the video material occupies a larger memory, the video display content is more concentrated after the processing, and the video transmission force is improved.
Step S11: audio information in the video material is extracted and volume information in the audio information is analyzed. The audio information also contains a lot of content, such as environmental sounds, speaking sounds, background music, and so on. The reason why only the volume information is analyzed and extracted here is that the volume information always has fluctuation regardless of the type of sound, and the sound with fluctuation can be used as a control signal to control the change of the effect element.
Step S12: the effect element is added to the overlay window over the video material. The effect element and the video material are divided into two windows for processing, because the processing modes and the production means of the two materials are different, the two materials need to be treated differently, and sometimes the processing of the video material or the effect element is not satisfactory, one content needs to be reset, and at this time, the two materials need to be processed separately. But the two are connected, and the extracted volume information can be dragged from the processing window to the overlapping window.
Step S13: the effect element is controlled to pulse with the audio information in the overlay window according to the volume information.
Step S14: and combining the overlapping window and the processing window in an overlapping manner, and exporting the video material with the effect element. When the contents in the two windows are edited and then the two windows are exported, the system can automatically combine the two windows into one window, and the two windows are output as a whole.
Fig. 2 shows a video material import flow chart of a video effect element automatic rhythm presentation method according to an embodiment of the present invention, after importing the video material to which the effect element is to be added into a processing window, the method further includes:
step S20: judging whether the attribute value of the video material to which the effect element is to be added is greater than a specified upper limit value; the attribute values comprise duration of the video material and occupied space values of the video material. The duration and the occupied space value of the video material meet the requirements of a video production and release platform, so that the video material can be smoothly shared with other people, and a series of editing and recombining operations can be performed on the video if the video material is not limited by the platform.
Step S21: and when the attribute value of the video material is larger than the specified upper limit value, generating compressed trimming information. The compressed cropping information includes an excess duration or/and an excess occupancy value for the video material.
Step S22: and according to the compression trimming information, performing compression trimming on the video material.
Step S23: and when the attribute value of the video material is not greater than the specified upper limit value, the video material is not compressed and trimmed.
In a case of this embodiment, the performing compression pruning on the video material according to the compression pruning information specifically includes:
step S210: and automatically generating a pruning ruler or/and a compression degree value according to the exceeding time length of the video material in the compression pruning information or/and the exceeding occupied space value.
Step S211: and adding the trimming ruler to the duration track where the video material is located, moving the trimming ruler, confirming the position of the trimming ruler on the duration track of the video material or/and compressing the video material according to the compression degree value. When the trimming ruler moves on the video material track, the trimming ruler is integrally dragged or the trimming ruler is split into a plurality of sections to move respectively; the using length of the trimming ruler is not less than the initial length of the trimming ruler. The lowest pruning ruler is automatically generated on the video time length track, the initial length of the pruning ruler is the minimum length which needs to be pruned off by the video, and a user can drag the pruning ruler to be lengthened but not to be shortened, so that the user can conveniently control the video length at the pruning position to meet the requirement. In addition, in order to use the cutting rule flexibly, the cutting rule can be divided into a plurality of small cutting rules, but the sum of the lengths of the small cutting rules is not less than the length of the initial cutting rule.
Fig. 3 shows a flow chart of volume information analysis of a method for automatically showing rhythm of a video effect element according to an embodiment of the present invention, where the extracting audio information from a video material and analyzing the volume information from the audio information specifically includes:
step S110: and extracting audio information in the video material, and analyzing a volume fluctuation curve, a drum point position and a drum point decibel relative value in the audio information. When background music exists in the video and drum points exist in the background music, drum point positions and drum point decibel relative values are extracted, the drum point decibel relative values are based on the minimum values of the drum points in the music, and numerical values obtained by subtracting the minimum values from decibel values of other drum points are the relative values.
Step S111: and adding the decibel relative value of the drum point to the volume fluctuation curve according to the position of the drum point to form a whole law trend. Adding rhythm reference lines on a volume fluctuation curve and a whole-course rhythm line, wherein the area above the rhythm reference line is positive rhythm, and the area below the rhythm reference line is negative rhythm, and the positive rhythm and the negative rhythm respectively refer to amplification and reduction, or move leftwards and rightwards, or move upwards and downwards, namely the motions and effects of the positive rhythm and the negative rhythm are opposite.
In a case of this embodiment, the adding the effect element to the overlay window over the video material specifically includes:
step S120: one or more effect elements are added to the overlay window.
Step S121: initial position information of each effect element in the overlay window is recorded. Before the initial position is confirmed, the position of the effect element can be dragged at will, and the initial size of the effect element can be changed at will. The reason for determining the initial position is to provide a reference for the movement and scaling of subsequent effect elements.
Fig. 4 shows a rhythm control flowchart of a method for automatically rhythm exhibiting a video effect element according to an embodiment of the present invention, where the controlling of rhythm of an effect element along with audio information in an overlay window according to volume information specifically includes:
step S130: adding the whole rhythm or volume fluctuation curve or intercepting part of the whole rhythm curve to each effect element by one key or respectively.
Step S131: the effect element moves or/and amplifies relative to the initial position information according to the whole rhythm or volume fluctuation curve added to the effect element or the intercepted part of the volume fluctuation curve or the intercepted part of the whole rhythm fluctuation curve fluctuation condition; the fluctuation value of the volume fluctuation curve controls the moving distance and the moving direction of the effect element relative to the initial position, and the drum point decibel relative value controls the magnification or reduction times of the effect element; the volume fluctuation curve changes quickly and slowly, and the jumping speed of the effect elements is controlled.
Fig. 5 is a schematic diagram illustrating an internal structure of a video effect element automatic rhythm presentation system according to an embodiment of the present invention, where the video effect element automatic rhythm presentation system includes:
and a video material importing module 100, configured to import the video material to which the effect element is to be added into the processing window.
And the audio analysis module 200 is configured to extract audio information in the video material and analyze volume information in the audio information.
An effect element adding module 300 for adding an effect element to an overlay window over the video material.
A rhythm control module 400 for controlling the effect element to rhythm with the audio information in the overlay window according to the volume information.
And the superposition combination module 500 is used for superposing and combining the superposition window and the processing window and exporting the video material with the effect element.
In order to load the above method and system to operate successfully, the system may include more or less components than those described above, or combine some components, or different components, in addition to the various modules described above, for example, input/output devices, network access devices, buses, processors, memories, and the like.
The processor may be a Central Processing Unit (CPU), but may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like which is the control center for the system and which connects the various parts of the overall user terminal using various interfaces and lines.
The memory may be used to store computer and system programs and/or modules, and the processor may perform the various functions described above by operating or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card, a secure digital card, a flash memory card, at least one magnetic disk storage device, a flash memory device, or other volatile solid state storage device.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A method for automatically rhythm presenting of a video effect element, the method comprising:
importing the video material to which the effect elements are to be added into a processing window;
extracting audio information in the video material, and analyzing volume information in the audio information;
adding effect elements to an overlay window above the video material;
controlling the effect elements to rhythm with the audio information in the superimposed window according to the volume information;
superposing and combining the superposed window and the processing window, and exporting a video material with effect elements;
the extracting the audio information in the video material and analyzing the volume information in the audio information specifically includes:
extracting audio information in the video material, and analyzing a volume fluctuation curve, a drum point position and a drum point decibel relative value in the audio information;
according to the position of the drum point, adding the decibel relative value of the drum point to the volume fluctuation curve to form a whole law trend;
the adding of the effect element to the overlay window above the video material specifically includes:
adding one or more effect elements to the overlay window;
recording initial position information of each effect element in the superposition window;
the rhythm of the effect element along with the audio information in the superimposed window according to the volume information specifically comprises:
adding a whole-stroke rhythm or volume fluctuation curve or a intercepted part of the volume fluctuation curve or the intercepted part of the whole-stroke rhythm curve to each effect element in a one-key mode or respectively;
the effect element moves or/and amplifies relative to the initial position information according to the whole rhythm or volume fluctuation curve added to the effect element or the intercepted part of the volume fluctuation curve or the intercepted part of the whole rhythm fluctuation curve fluctuation condition; the fluctuation value of the volume fluctuation curve controls the moving distance and the moving direction of the effect element relative to the initial position, and the drum point decibel relative value controls the magnification or reduction times of the effect element; the volume fluctuation curve changes quickly and slowly, and the jumping speed of the effect elements is controlled.
2. The method for automated rhythm presentation of video effect elements according to claim 1, wherein after said importing of video material to which effect elements are to be added into a processing window, said method further comprises:
judging whether the attribute value of the video material to which the effect element is to be added is greater than a specified upper limit value; the attribute values comprise duration of the video materials and occupied space values of the video materials;
when the attribute value of the video material is larger than a specified upper limit value, generating compressed trimming information; the compressed trimming information comprises the exceeding duration or/and the exceeding occupied space value of the video material;
and according to the compression trimming information, performing compression trimming on the video material.
3. The method of claim 2, wherein the compression cropping video material based on the compression cropping information specifically comprises:
automatically generating a pruning ruler or/and a compression degree value according to the exceeding time length of the video material or/and the exceeding occupied space value in the compression pruning information;
and adding the trimming ruler to the duration track where the video material is located, moving the trimming ruler, confirming the position of the trimming ruler on the duration track of the video material or/and compressing the video material according to the compression degree value.
4. The method for automatically displaying rhythm of video effect element according to claim 3, wherein when said trimming ruler moves on the video material track, the trimming ruler is dragged as a whole or split into multiple segments to move respectively; the using length of the trimming ruler is not less than the initial length of the trimming ruler.
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