CN112068771A - Video processing method, video processing device, terminal device and storage medium - Google Patents

Abstract

The embodiment of the present application discloses a video processing method, a video processing device, a terminal device and a storage medium, which are applied to the field of data processing. The method includes: acquiring a writing instruction of the video to be written in the terminal equipment; according to the writing instruction Obtain the video sampling parameters of the video to be written; perform data processing on the video to be written according to the video sampling parameters to obtain the image frame of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the video to be written; Input the image frame of the video to perform the write operation. It can be seen that when there is a large-capacity data write in the terminal device, the large-capacity data is usually video data. Therefore, the present application uses the video sampling parameters to process the data to be written in the video, thereby reducing the amount of data written, which can avoid the terminal device. The problem of slow writing speed caused by the large memory occupancy of the terminal device, and in the case where the hard disk of the terminal device is a solid-state hard disk, the service life of the flash memory in the solid-state hard disk is prolonged.

Description

Video processing method, video processing device, terminal device and storage medium

technical field

The present application relates to the technical field of data processing, and in particular, to a video processing method, a video processing apparatus, a terminal device, and a storage medium.

Background technique

At present, for a terminal device with a small capacity (such as 16GB, 32GB, etc.), if a large amount of data is written, it will occupy a large space on the hard disk (such as a mechanical hard disk or a solid-state hard disk, etc.) of the terminal device, resulting in data writing. The entry speed is slower.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a video processing method, a video processing device, a terminal device, and a storage medium, which avoid the problem of slow writing speed caused by the large memory occupancy of the terminal device, and when the hard disk of the terminal device is a solid-state hard disk , extending the life of the flash memory in the SSD.

In a first aspect, a video processing method is provided, including:

Obtain the writing instruction of the video to be written in the terminal device;

Obtain the video sampling parameters of the to-be-written video according to the write instruction;

According to the video sampling parameters, data processing is performed on the video to be written to obtain an image frame of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video;

A write operation is performed on the image frame of the written video.

In a second aspect, a video processing apparatus is provided, including:

an acquisition module, used to acquire the writing instruction of the video to be written in the terminal device; and,

Obtain the video sampling parameters of the to-be-written video according to the write instruction;

a processing module, configured to perform data processing on the to-be-written video according to the video sampling parameters to obtain image frames of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video amount; and,

A write operation is performed on the image frame of the written video.

In a third aspect, a terminal device is provided, including a processor and a memory, the processor and the memory are coupled, the memory is used for storing computer program instructions, when the processor executes the computer program instructions, the terminal device is The method described in the first aspect above is performed.

In a fourth aspect, a computer storage medium is provided, where program instructions are stored in the computer storage medium, and when the program instructions are executed on a terminal device, the terminal device is made to execute the method described in the first aspect.

In a fifth aspect, a chip is provided, the chip is coupled to a memory in a terminal device, so that the chip calls program instructions stored in the memory when running, so that the terminal device executes the above-mentioned first aspect. method.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: the present application first obtains the writing instruction of the video to be written in the terminal device; then obtains the video sampling parameters of the to-be-written video according to the writing instruction; then According to the video sampling parameters, data processing is performed on the video to be written to obtain the image frame of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the video to be written; finally, the write operation is performed on the image frame written into the video . It can be seen that when there is a large-capacity data write in the terminal device, the large-capacity data is usually video data. Therefore, the present application uses the video sampling parameters to process the data to be written in the video, thereby reducing the amount of data written, which can avoid the terminal device. The problem of slow writing speed caused by the large memory occupancy of the terminal device, and in the case where the hard disk of the terminal device is a solid-state hard disk, the service life of the flash memory in the solid-state hard disk is prolonged.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments and the prior art. Obviously, the drawings in the following description are only some implementations of the present application. For example, other drawings may also be obtained from these drawings.

1 is a schematic diagram of a video processing method provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of an interface displayed by a terminal device according to an embodiment of the present application;

3 is a schematic diagram of an interface displayed by another terminal device according to an embodiment of the present application;

4 is a schematic diagram of another video processing method provided by an embodiment of the present application;

FIG. 5 is a structural block diagram of a video processing apparatus provided by an embodiment of the present application;

FIG. 6 is a structural block diagram of a terminal device provided by an embodiment of the present application.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the present application. examples, but not all examples. Based on the embodiments in this application, all should belong to the scope of protection of this application.

In the related art, the mechanical hard disk has a mechanical structure, so the internal components of the mechanical hard disk are more complicated than the solid-state hard disk, so that the mechanical hard disk is heavier than the solid-state hard disk. As users' demands for portability of terminal devices increase, the utilization of solid-state drives in terminal devices is higher.

Among them, the solid-state drive uses flash memory as the storage medium, and the reading speed is faster than that of the mechanical hard disk. The flash memory controller can manage the flash memory (eg, NAND flash memory, etc.) through software (eg, firmware) and a flash translate layer (flash translate layer, FTL). The flash memory controller may be a controller embedded in the solid state drive, or may be an external controller connected to the solid state drive. Considering that the flash memory has a failure mechanism, a failure bit will be generated during use. If the failed bit is beyond the rescue range of the error checking and correcting (ECC) engine, the block to which the failed bit belongs (the so-called block) is a bad block (the so-called badblock) and can no longer be used. In addition, each block of flash memory has a limited erasing and writing life (that is, the so-called PEcycle), so it is necessary to perform bad block management, ECC engine management, garbage collection (that is, the so-called garbage collection, GC) management, wear and tear through FTL. Equalization (also known as wear leveling) management, etc., to avoid the failure of certain blocks due to overuse of them.

However, a small-capacity flash memory will still have a large amount of data erasing and writing to reach the end of its life. For example, for a mobile phone for low-end users, generally enough over provision (OP) is not provided for GC, so that the write amplification factor (WAF) cannot be reduced. In this way, due to the physical limitation of small capacity, FTL cannot avoid the problem of short service life of flash memory, which leads to the short service life of the terminal device as a whole.

In order to solve this problem, the present application considers that when a terminal device has large-capacity data writing, the large-capacity data is usually video data. Therefore, the present application can perform data processing on the video to be written through the video sampling parameters to obtain the image frame of the written video, the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video, and the image frame of the written video can be written. into operation. It can be seen that by reducing the amount of data written, the problem of slow writing speed caused by the large memory footprint of the terminal device can be avoided, and when the hard disk of the terminal device is a solid-state hard disk, the use of flash memory in the solid-state hard disk can be extended. life, so that the life of the terminal equipment is also extended.

The present application will be described in detail below with reference to specific embodiments.

FIG. 1 is a schematic flowchart of a video processing method provided by an embodiment of the present application. The method can be applied to a terminal device, and optionally, the method can be executed by a controller in the terminal device. The embodiments of this application are described by taking a hard disk of a terminal device including a solid-state hard disk as an example. The controller may be a hardware control module integrated in a flash memory controller, a circuit control module connected to the flash memory controller, or a video The flash memory controller for the processing function may also be a central processing unit (central processing unit, CPU) in the terminal device, etc., which is not particularly limited in this application.

As shown in Figure 1, the method may include:

101. Obtain a writing instruction of the video to be written in the terminal device.

In this embodiment of the present application, the write instruction may be obtained by, but not limited to, the following methods:

Manner 1: In response to a first storage operation on a storage control on a display interface of the terminal device, the terminal device acquires a writing instruction of the video to be written corresponding to the first storage operation.

It can be understood that, the storage control may be a video download control and/or a video recording control, etc. set in the video application.

Manner 2: In response to the second storage operation on the storage button on the terminal device, the terminal device obtains a writing instruction of the video to be written corresponding to the second storage operation.

It can be understood that the storage button may be a video download button set on the terminal device for performing video download, and/or a video recording button for performing video recording, and the like. Exemplarily, the video download button may be a combination of volume up and power keys, the video recording button may be a combination of volume down and power, and so on.

It should be noted that the application may set the same storage button for different video applications; or, different storage buttons may be set for different video applications, which is not particularly limited in this application.

Manner 3: In the case where it is detected that the write data stream is video data, a write command of the to-be-written video corresponding to the write data stream is generated.

It can be understood that the video application of the terminal device sends the write data stream to the controller, and the write data stream includes a data type identifier (for example, the file header of the write data stream is used to indicate the data type). In this way, the controller obtains the data type identifier written in the data stream, and when determining that the data type identifier is the same as the video data identifier, determines that the write data stream is video data; when determining that the data type identifier is different from the video data identifier In this case, it is determined that the written data stream is non-video data. Since the application considers that the data amount of non-video data is generally small, in order to reduce the data processing amount, data processing is not required for non-video data.

In an optional embodiment of the present application, it is considered that some users do not need to perform data processing on the video to be written by using the video processing method in the present application, but directly perform a writing operation on the video to be written. In this way, in order to improve the flexibility of video writing. As shown in FIG. 2 , the present application may further be provided with a memory saving control and a selection control for controlling the memory saving control on the first setting page of the terminal device. When the memory saving control is in an on state, the steps of the video processing method in the present application are performed; when the memory saving control is in an off state, the process of performing a writing operation on the video to be written in the prior art is performed. FIG. 2 shows a schematic diagram in which the memory saving control is turned on.

102. Acquire video sampling parameters of the video to be written according to the write instruction.

Wherein, the video sampling parameters include at least one of the following: sampling frame rate, sampling resolution, different color component sets, and sampling levels corresponding to different color components respectively; different color component sets have corresponding sampling periods and/or sampling sequences, The set of color components includes at least one color component.

It should be noted that the current video parameters of the video to be written may include the current frame rate, the current resolution, the current color component set, and the current color levels corresponding to different color components respectively. The video sampling parameter may satisfy at least one of the following conditions: the sampling frame rate is smaller than the current frame rate; the sampling resolution is smaller than the current resolution; the number of color components included in at least one color component set is correspondingly smaller than the number of color components included in the current color component set Quantity; the sampling level of different color components corresponds to the current level that is smaller than the different color components.

It should be understood that the sampling frame rate may be the number of frames collected in a unit time (for example, 1 s). Exemplarily, the sampling frame rate may be 50fs.

It should be understood that the sampling resolution may include resolutions in two directions (ie, generally referred to as horizontal and vertical) or resolution in a single direction (ie, generally referred to as horizontal or vertical).

It can be understood that the sampling period may be a unit time, or a specified number of frames or the like. Illustratively, the different sets of color components include a first set of color components (eg, the first set of color components includes R color components), a second set of color components (eg, the second set of color components includes G color components), and The third color component set (for example, the third color component set includes the B color component), and the sampling periods corresponding to different color component sets are unit time, and the unit time is 1s, and the sampling order corresponding to different color component sets is from the first Afterwards, it can include: a first set of color components, a second set of color components, and a third set of color components.

It should be noted that the sampling color levels corresponding to different color components may be the same color level or different color levels, which is not limited in this application. Exemplarily, the different color components include R, G, and B, and the corresponding sampling levels are all 8.

Optionally, parameter controls corresponding to the parameter types of the video sampling parameters, and a selection control for controlling the parameter controls are provided on the parameter setting page of the terminal device, so that the user can select the target parameter type to open; the parameter type includes the target parameter. Parameter Type. At this time, this step may include: the terminal device obtains the video sampling parameter to which the enabled target parameter type belongs.

As shown in FIG. 3 , the parameter type can be the frame rate type corresponding to the sampling frame rate, the resolution type corresponding to the sampling resolution, the color component type corresponding to different color component sets, and the color scale corresponding to the sampling color scale of different color components. type. In this way, if the parameter control corresponding to the frame rate type is enabled, the video sampling parameters include the sampling frame rate; if the parameter control corresponding to the resolution type is enabled, the video sampling parameters include the sampling resolution; If the parameter control is enabled, the video sampling parameters include different color component sets; if the parameter control corresponding to the color scale type is enabled, the video sampling parameters include the sampling color levels corresponding to different color components. The above example is only an exemplary illustration of enabling a single parameter control, and the present application can also enable at least two parameter controls at the same time. FIG. 3 illustrates by taking an example that the parameter control corresponding to the color component type is in an open state.

Further, obtaining the video sampling parameters of the video to be written according to the write instruction may include but not be limited to the following ways:

Manner 1: Acquire the target preset sampling parameter corresponding to the video to be written according to the writing instruction, and use the target preset sampling parameter as the video sampling parameter of the video to be written.

In this embodiment of the present application, preset sampling parameters may be stored in advance, the parameter types of the preset sampling parameters include the parameter types of the video sampling parameters, and the preset sampling parameters may be parameters preset by the user. Wherein, different videos may correspond to the same preset sampling parameters, or different videos may correspond to different preset sampling parameters.

In one embodiment, if different videos correspond to the same preset sampling parameter, the target preset sampling parameter is the same as the preset sampling parameter.

Exemplarily, the preset sampling parameters include at least one of the following: a preset sampling frame rate, a preset sampling resolution, a preset color component set, and a preset sampling level corresponding to the preset color components. When the number of preset color component sets is at least two, the at least two preset color component sets have corresponding preset sampling periods and/or preset sampling sequences; the preset color component sets include at least one color component.

For example, the preset sampling frame rate can be 50fs; the preset sampling resolution can be M×N; different preset color component sets can include {R}, {G}, {B}, and the samples corresponding to {R} The period can be 1s, the sampling period corresponding to {G} can be 2s, the sampling period corresponding to {B} can be 1s, and the sampling order corresponding to {R}, {G}, {B} from first to last is { G}, {B}, {R}; the preset color components include three color components: R, G, and B. The preset sampling level corresponding to R is 8, the preset sampling level corresponding to G is 16, and B corresponds to The preset sampling level is 16. Here, M and N are positive integers. The above examples are only illustrative, and the present application does not make any special restrictions on them.

In another embodiment, if different videos correspond to different preset sampling parameters, the terminal device needs to construct a parameter correspondence between preset sampling parameters and video parameter samples in advance. Therefore, the present application can obtain the current video parameters of the video to be written according to the writing instruction, and determine the preset sampling parameters corresponding to the video parameter samples matching the current video parameters as the target preset sampling parameters according to the parameter correspondence.

It can be understood that the parameter types of both the current video parameter and the video parameter sample may be the same as the parameter type of the video sample parameter.

Exemplarily, the parameter correspondence may include: the frame frequency sample is 60fs, and the corresponding preset sampling frame frequency is 50fs; the resolution sample is 1396×768, and the corresponding preset sampling resolution is 1380×720; the color component set sample is {R, G, B}, the corresponding preset color component set includes {R}, {G}, {B}, and the sampling order corresponding to the preset color component set is {G}, {B}, {R }, {R} corresponds to a sampling period of 1s, {G} corresponds to a sampling period of 2s, {B} corresponds to a sampling period of 1s; the preset color components include R, G, B three color components For example, when the color scale sample of R is 8, the corresponding preset sampling color scale is 4; when the color scale sample of G is 16, the corresponding preset sampling color scale is 8, and the color scale sample of B is 8. When it is 16, the corresponding preset sampling level is 8. In this way, it is assumed that the current video parameters of the video to be written include: the current frame rate is 60fs; the current resolution is 1396×768; the current color component set is {R, G, B}, and the current color level corresponding to R is 8, G The corresponding current color level is 16, and the current color level corresponding to B is 16. Then it can be determined that the target preset sampling parameters include: the preset sampling frame frequency is 50fs; the preset sampling resolution is 1380×720; the preset color component set includes {R}, {G}, {B}, and the preset color The sampling order corresponding to the component set is {G}, {B}, {R}, the sampling period corresponding to {R} can be 1s, the sampling period corresponding to {G} can be 2s, and the sampling period corresponding to {B} can be 1s; the preset sampling level corresponding to R is 4, the preset sampling level corresponding to G is 8, and the preset sampling level corresponding to B is 8. The above numerical values are only illustrative, and are not limited in this application.

Manner 2: Acquire the video content of the video to be written according to the writing instruction, and determine the video sampling parameters of the video to be written according to the video content.

In the embodiments of the present application, considering that the video content may include moving objects or scenery objects, the video sampling parameters may be different for different video content.

Optionally, if there is a moving object in the video content of the first image frame sequence included in the video to be written, the sampling frame rate of the first image frame sequence is determined according to the motion change amount of the moving object.

Among them, the optical flow method can be used to identify whether there is a moving object in the image frame sequence. Of course, in the present application, the preset model can also be trained by collecting multiple image frame sequence samples and using the image frame sequence samples and the labeling results corresponding to the image frame sequence samples (that is, the presence of moving objects or the absence of moving objects) to obtain the training results. The completed object recognition model. In this way, the present application can recognize that there is a moving object in the video content of the first image frame sequence through the object recognition model. The preset model may be a support vector machine or the like.

It can be understood that, the first image frame sequence may be an image frame sequence within a unit time (for example, 1 s or 2 s, etc.). If the motion variation of the moving object is large and the sampling frame rate is small, the video will be unsmooth, and the action span of the moving object will be large, resulting in poor visual effect. Therefore, in an embodiment, a first proportional relationship exists between the motion variation range of the moving object and the sampling frame rate, so that the sampling frame rate corresponding to the motion variation range to which the motion variation amount belongs can be determined through the first proportional relationship. For example, regarding the first image frame sequence of the flight of the aircraft, it is necessary to obtain the sampling frame frequency corresponding to the motion variation range to which the flight speed belongs. In another embodiment, the preset sampling frame rate can be adjusted according to the motion change amount of the moving object to obtain the sampling frame rate. For example, the adjustment value can be determined according to the motion change amount, and the larger the motion change amount, the larger the adjustment value; then The sum of the adjustment value and the preset sampling frame rate is taken as the sampling frame rate.

Optionally, if there is a moving object in the video content of the second image frame sequence included in the video to be written, the sampling resolution of the second image frame sequence is determined according to the motion change amount of the moving object.

It can be understood that, the second image frame sequence may also be an image frame sequence within a unit time (for example, 1 s or 2 s, etc.). If the motion variation of the moving object is large and the sampling resolution is small, the video will be blurred and the visual effect will be poor. Therefore, in one embodiment, a second proportional relationship exists between the motion variation range of the moving object and the sampling resolution, so that the sampling resolution corresponding to the motion variation range to which the motion variation amount belongs can be determined through the second proportional relationship. For example, regarding the second image frame sequence of kicking football, it is necessary to obtain the sampling resolution corresponding to the motion variation range to which the kicking speed belongs. In another embodiment, the sampling resolution can be obtained by adjusting the preset sampling resolution according to the movement change of the moving object. For example, the adjustment ratio can be determined according to the movement change, and the larger the movement change, the larger the adjustment ratio; then Take the product between the adjustment ratio and the preset sampling resolution as the sampling resolution.

Optionally, if there is a landscape object in the video content of the third image frame sequence included in the video to be written, then at least one first preset color component set is determined as a color component set corresponding to the third image frame sequence; The number of color components included in a preset color component set is greater than or equal to the preset number. The preset number may be the number of color components included in the corresponding preset color component set when there is no landscape object in the video content of the third image frame sequence included in the video to be written.

It can be understood that, the third image frame sequence may also be an image frame sequence within a unit time (eg, 1 s or 2 s, etc.). Landscape objects that use fewer color components can result in poor color integrity and thus poorer visual effects. Therefore, the number of color components included in the first preset color component set is greater than or equal to the preset number. It should be noted that, in the case where the at least one first preset color component set includes at least two first preset color component sets, the at least two first preset color component sets have corresponding preset sampling periods and/or Preset sampling order. Exemplarily, the preset number is 2, the at least two first preset color component sets may include {R, G, B}, {R, B}, {G, B}, the at least two first preset color components The sampling order corresponding to the component set is {R, G, B}, {R, B}, {G, B}, the sampling period corresponding to {R, G, B} can be 1s, and the sampling period corresponding to {R, B} The period can be 2s, and the sampling period corresponding to {G, B} can be 1s.

Optionally, if there is a scenery object in the video content of the fourth image frame sequence included in the video to be written, it is determined that the first preset color levels of different color components correspond to the different color components in the fourth image frame sequence. Sampling level; wherein, the first preset level is greater than or equal to a preset value.

It can be understood that, the fourth image frame sequence may also be an image frame sequence within a unit time (for example, 1 s or 2 s, etc.). Using a smaller color scale for landscape objects results in indistinguishable colors that are close to each other, resulting in poorer visual effects. Therefore, the first preset color level is greater than or equal to the preset value. The preset value may be preset color levels corresponding to different color components when there is no landscape object in the video content of the fourth image frame sequence included in the video to be written.

Of course, the present application can also combine the above-mentioned embodiments of determining the video sampling parameters of the video to be written according to the video content. Exemplarily, if there is a scenery object in the video content of the fifth image frame sequence included in the video to be written, at least one preset color component set is determined as a color component set corresponding to the fifth image frame sequence; The number of color components included in the component set is greater than or equal to a preset number, and it is determined that the preset color level of the color components included in the preset color component set corresponds to the sampling level of the color components included in the color component set of the fifth image frame sequence; Wherein, the preset color level is greater than or equal to the preset value.

Mode 3: Acquire the available memory of the terminal device according to the writing instruction, and determine the video sampling parameters of the video to be written according to the available memory.

It can be understood that the available amount of memory may be the remaining amount of memory or the total memory capacity, or the like.

Optionally, the sampling frame rate of the video to be written is determined according to the available memory.

In one embodiment, the present application may store a preset frame rate in advance, and adjust the preset frame rate according to the available memory of different terminal devices to obtain the sampling frame rate. That is, if the amount of available memory is greater than the first preset threshold, the preset frame rate may be increased to obtain the sampling frame rate (for example, the sum of the preset frame rate and the first value may be used as the sampling frame rate, or the preset frame rate may be The product of the frame rate and the first ratio is used as the sampling frame rate, and the first ratio is greater than 1). The difference between the frame rate and the second value is taken as the sampling frame rate, or the product of the preset frame rate and the second ratio is taken as the sampling frame rate, and the second ratio is less than 1); if the available memory is equal to the first preset threshold, Then the sampling frame rate is equal to the preset frame rate.

It should be noted that, since the amount of available memory may include the remaining amount of memory or the total memory capacity, the remaining amount of memory and the total memory capacity correspond to different first preset thresholds, and subsequent second preset thresholds and third preset thresholds. The same is true for the fourth preset threshold, and details are not repeated here.

In another embodiment, the sampling frame rate corresponding to the memory availability range to which the memory availability belongs is obtained according to a first preset correspondence relationship, and the first preset correspondence relationship includes the correspondence relationship between the memory availability range and the sampling frame rate .

Optionally, the sampling resolution of the video to be written is determined according to the available memory.

In an embodiment, the present application may store a preset resolution in advance, and adjust the preset resolution according to the available memory of different terminal devices to obtain the sampling resolution. That is, the available amount of memory is greater than the second preset threshold, the preset resolution can be increased to obtain the sampling resolution (for example, the sum of the preset resolution and the third value can be used as the sampling resolution, or the preset The product of the resolution and the third ratio is used as the sampling resolution, and the third ratio is greater than 1); if the available memory is less than the second preset threshold, the preset resolution can be reduced to obtain the sampling resolution (for example, the preset The difference between the resolution and the fourth value is used as the sampling resolution, or the product of the preset resolution and the fourth ratio is used as the sampling resolution, and the fourth ratio is less than 1); if the available memory is equal to the second preset threshold, Then the sampling resolution is equal to the preset resolution.

In another embodiment, the sampling resolution corresponding to the memory availability range to which the memory availability belongs is obtained according to a second preset correspondence relationship, and the second preset correspondence relationship includes the correspondence between the memory availability range and the sampling resolution relation.

Optionally, different sets of color components to be written into the video are determined according to the amount of memory available.

In an embodiment, the present application may store a second preset color component set in advance, and adjust the second preset color component set according to the available memory of different terminal devices to obtain a color component set. That is, the amount of available memory is greater than the third preset threshold, then a new color component can be added to the second preset color component set to obtain a color component set (that is, the number of color components included in the color component set is greater than or equal to the corresponding second preset color The number of color components included in the component set, and the second preset color component set is a subset of the corresponding color component set); the available memory is less than the third preset threshold, then the second preset color component set can be Delete some color components to obtain a color component set (that is, the number of color components included in the color component set is less than the number of color components included in the corresponding second preset color component set, and the color component set is the corresponding second preset color component set. If the available memory is equal to the third preset threshold, the color component set is the same as the corresponding second preset color component set.

In another embodiment, a set of sampled color components corresponding to a range of available memory to which the available memory belongs is obtained according to a third preset correspondence, where the third preset correspondence includes a relationship between the range of available memory and the set of sampled color components corresponding relationship.

Optionally, sampling levels corresponding to different color components of the video to be written are determined according to available memory.

In an embodiment, the present application may pre-store second preset color levels of different color components, and adjust the second preset color levels of different color components according to the available memory of different terminal devices to obtain different colors The sampling level corresponding to the component. That is, if the amount of available memory is greater than the fourth preset threshold, at least one preset level in the second preset levels of different color components can be increased to obtain sampling levels of different color components; With four preset thresholds, at least one preset level in the second preset levels of different color components can be downsized to obtain sampling levels of different color components; if the amount of available memory is equal to the fourth preset threshold, different colors The second preset color level of the components corresponds to the same sampling level of different color components.

In another optional embodiment, the sampling level of different color components corresponding to the memory availability range to which the memory availability belongs is obtained according to a fourth preset correspondence relationship, where the fourth preset correspondence relationship includes the memory availability range, the color component And the correspondence between sampling levels.

Manner 4: Obtain the video content of the video to be written and the available memory of the terminal device according to the writing instruction, and determine the video sampling parameters of the video to be written according to the available memory and the video content.

For specific content, reference may be made to the content in the second and third modes, which will not be repeated here.

The fifth method is to obtain the current parameters of the video to be written according to the writing instruction, the current parameters include at least one of the current frame rate and the current resolution, and correspondingly determine the video sampling parameters of the video to be written according to the current parameters and the preset ratio, The video sampling parameters include at least one of a sampling frame rate and a sampling resolution. It should be noted that the current resolution in this application may also include the resolution in two directions or the resolution in a single direction, which is not particularly limited in this application.

It can be understood that the preset ratio may be less than 1. Exemplarily, if the current frame rate is 60fs and the preset ratio is 5/6, the sampling frame rate may be 50fs. The above examples are only illustrative, and the present application does not make any special restrictions on them.

Of course, the present application can also obtain the current color levels corresponding to different color components of the video to be written, and adjust the current color levels to obtain the sampling color levels corresponding to the different color components respectively. For example, if the current color level corresponding to the R color component is 16 digits, the ratio of the current color level to a fixed value (such as 2) can be used as the sampling color level (ie, 8 digits) corresponding to the R color component.

103. Perform data processing on the video to be written according to the video sampling parameters to obtain image frames to be written into the video; the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video.

Wherein, in the case where the video sampling parameter includes the sampling frame rate, the terminal device can perform data processing on the video to be written according to the sampling frame rate to obtain the image frame written in the video; in the case where the video sampling parameter includes the sampling resolution, The terminal device can perform data processing on the video to be written according to the sampling resolution to obtain image frames to be written into the video; in the case where the video sampling parameters include different sets of color components, the terminal device can, according to the different sets of color components, Enter the video for data processing to obtain the image frame written into the video; if the video sampling parameters include sampling levels corresponding to different color components, the terminal device can perform data processing on the video to be written according to the sampling levels corresponding to different color components. Get the image frame written to the video.

Exemplarily, the sampling frame rate may be 50fs. In this case, this step may include: the terminal device samples 50 image frames of image frames within a unit time (for example, per second) of the video to be written.

Exemplarily, the current resolution may be B×D, the sampling resolution may be M×N, B, D, M, and N are all natural numbers, and B is greater than M and D is greater than N. In this case, this step may include: the terminal device reduces the current resolution of the image frame to be written in the video to M×N; for another example, the sampling resolution may include that the sampling horizontal resolution is M, in this case, this step may include : The terminal device reduces the current horizontal resolution of the image frame to be written in the video to M. The above examples are only illustrative, and this application does not make any special restrictions on this.

Exemplarily, if the different color component sets include a first color component set (for example, the first color component set includes an R color component), a second color component set (for example, the second color component set includes a G color component) And the third color component set (for example, the third color component set includes the B color component), and the sampling period corresponding to the different color component sets is 1s, and the sampling order corresponding to the different color component sets can include: A set of color components, a second set of color components, and a third set of color components. Then this step may include: the image frame in the 1s to be written in the video is sampled according to the R color component, the image frame to be written in the 2s in the video is sampled according to the G color component, and the image frame to be written in the 3s in the video is sampled according to the G color component. The image frame of is sampled according to the B color component, and so on.

Exemplarily, the different color components include R, G, and B, and the corresponding sampling levels are all 8. In this step, the pixel values of the different color components to be written in the video can be sampled according to 8-bit colors. The above examples are only illustrative, and this application does not make any special limitations.

It should be noted that, since the video is usually composed of consecutive image frames, the difference in image content between adjacent frames is small, and the human eye has a visual persistence effect, so there are some missing frames in the video to be written, and the video to be written is missing. Some frames of the video lose a small amount of color components, the resolution of some frames to be written in the video becomes smaller, or the color contrast of some frames to be written in the video is reduced, which will not have a great impact on viewing.

104. Perform a writing operation on the image frame written into the video.

In an embodiment of the present application, after acquiring all the image frames of the written video, a write operation may be performed on all the image frames of the written video; While performing the writing operation on part of the image frames written in the video, another part of the image frames in the written video can be continuously acquired, which improves the writing efficiency. The present application does not specifically limit the writing method.

It can be understood that if the data to be written is processed by the sampling frame rate, the number of frames to be written can be reduced; if the data to be written is processed by the sampling resolution, the number of pixels can be reduced; Different color component sets perform data processing on the video to be written, and the pixel values of some color components can be written, thereby reducing the number of pixel values; digits. Of course, the present application can perform data processing on the video to be written in combination with different types of sampled video parameters, so as to reduce the amount of data written.

As shown in Table 1, it shows the relevant data of data processing of the video to be written through different schemes, wherein, scheme 1 is a scheme of performing data processing on the video to be written according to the sampling frame rate; scheme 2 is according to the sampling frame rate. A scheme for data processing of the video to be written in a single direction in the frequency and sampling resolution (i.e. X resolution); scheme 3 is based on the resolution in two directions in the sampling frame rate and sampling resolution (i.e. X resolution). Resolution and Y resolution) The scheme for data processing of the video to be written; Scheme 4 is the resolution in two directions (ie X resolution and Y resolution), different colors according to the sampling frame rate and sampling resolution. A solution for performing data processing on a video to be written to a component set and sampling levels corresponding to different color components respectively. It is understood that chrominance is the number of color components in a single image.

Table 1

Reference scheme plan 1 Scenario 2 Scenario 3 Scenario 4 Sampling time (s) 1 1 1 1 1 Sampling frame rate (fs) 60 54 54 54 54 X resolution 1396 1396 1256 1256 1256.4 Y resolution 768 768 768 691 691.2 Average of sample levels 16 16 16 16 14.4 average value of chromaticity 3 3 3 3 2.7 Memory footprint per frame (Bit) 51462144 51462144 46301184 41659008 33764312.68 Memory usage per frame (Byte) 6432768 6432768 5787648 5207376 4220539.085 Memory footprint per frame (MB) 6.1347 6.1347 5.5195 4.9661 4.0250 Total memory footprint (MB) 368.0859 331.2770 298.0547 268.1716 217.3511 compared to(%) 100% 90% 81% 73% 60%

As can be seen from Table 1, the reference scheme is a scheme for writing a video of 1s in the prior art, and it can be seen that the total memory occupancy needs to reach 368.0859MB; and using the scheme 1 in this application, the total memory occupancy is 331.2770MB, which is reduced by about 368.0859MB. 10%, which is equivalent to 10% longer life of flash memory; using solution 2 in this application, the total memory footprint is 298.0547MB, which is reduced by about 19%, which is equivalent to 19% longer life of flash memory; using solution 3 in this application, The total memory occupancy is 268.1716MB, a reduction of about 27%, which is equivalent to a 27% extension of the life of the flash memory; using scheme 4 in this application, the total memory footprint is 217.3511MB, a reduction of about 40%, which is equivalent to a 40% extension of the life of the flash memory. %. It can be known from the experimental data that the amount of data writing can be greatly reduced by the video processing method described in this application.

In an optional embodiment of the present application, a weakening function control for weakening the edge of the image may also be set on the second setting page. In this way, when the user activates the weakening function control, the present application can also perform edge weakening on the image frame written in the video, so that the number of pixel values in the image frame written in the video is reduced.

Exemplarily, if the pixels (1, 1), (1, 3), (1, 5), (1, 9), (1, 12), (2) in a certain image frame of the video are written , 1), (3, 1) are weakened so that the corresponding pixel values are all specified values (for example, the pixel values are (0, 0, 0)), then when writing to an image frame, you can directly Write pixels (1, 1), (1, 3), (1, 5), (1, 9), (1, 12), (2, 1), (3, 1) are all (0, 0, 0), which avoids inputting pixel values to these pixel points in turn, thereby reducing the amount of data.

With the method described above, considering that there is a large-capacity data write in the terminal device, the large-capacity data is usually video data. Therefore, the present application can perform data processing on the video to be written through the video sampling parameters to obtain the image frame of the written video, the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video, and the image frame of the written video can be written. into operation. It can be seen that by reducing the amount of data written, the problem of slow writing speed caused by the large memory footprint of the terminal device can be avoided, and when the hard disk of the terminal device is a solid-state hard disk, the flash memory in the solid-state hard disk can be extended. service life.

With reference to the embodiment shown in FIG. 1, as shown in FIG. 4, after step 104, it may further include:

105. Obtain the video to be played according to the image frame of the written video in the case of receiving the play instruction for the written video.

The video to be played includes an image frame written in the video, or the video to be played is a video obtained by performing data restoration on the image frame written in the video.

It can be understood that, considering that the visual deviation between the written video and the to-be-written video in this application is not obvious, the written video can be directly used as the to-be-played video (that is, the memory occupancy of the written video is equal to the to-be-played video). video memory footprint), reducing the amount of data processing.

It should be understood that, considering that the visual deviation between the written video and the to-be-written video in the present application is relatively large, it is possible to perform data restoration on the written video to obtain the to-be-played video (that is, the memory occupancy of the written video is smaller than the to-be-played video). the memory footprint of the video), thereby improving the user's visual effect.

Optionally, the to-be-played video may be obtained by performing data restoration on the written video according to the current target video parameters of the to-be-written video. The parameter types of the current target video parameter and the video sampling parameter are the same, and the current target video parameter is the parameter of the video to be written before data processing is performed. The current target video parameters include at least one of the current frame rate and current resolution, the current color component set, and the current color levels corresponding to different color components respectively.

Wherein, when both the current target video parameter and the video sampling parameter include the frame rate type, insert a target number of initial image frames into the image frame written into the video, where the target number is the current frame rate and sampling rate of the video to be written The difference in frame rate. For example, if the current frame rate of the video to be written is 60fs and the sampling frame rate is 50fs, then the target number is 10 (ie 60-50=10), so 10 initial image frames can be inserted into the image frame of the written video.

Further, a target number of initial image frames can be inserted into the image frames written into the video according to the sampling strategy of the sampling frame rate. Exemplarily, if the first 50 image frames are obtained from the 60 image frames in the first second of the video to be written according to the sampling frame rate as the image frames in the first second of the video to be written, then this step can be performed when the video is written. Insert 10 initial image frames after the image frame of the first second of the In the last 40 image frames of the first second, the image frames of the first second written into the video are obtained. If o is an odd number, then this step can be inserted after each frame of the first 10 image frames written into the first second of the video. 1 initial image frame, etc.

Wherein, in the case where both the current target video parameter and the video sampling parameter include the resolution type, if the current resolution corresponding to each image frame included in the video to be written is the same, the image frame written in the video may be written according to the current resolution. rate is set. Or, considering that the current resolutions corresponding to each image frame included in the video to be written are different, the current resolution before the unprocessed image frame can be marked in advance for the image frame written in the video. In this way, the image frame written in the video can be Set the corresponding current resolution.

Wherein, when both the current target video parameter and the video sampling parameter include the resolution type and the frame rate type, if the current resolution corresponding to each image frame included in the video to be written is the same, the image written in the video can be The frame and initial image frame are set according to the current resolution. Or, considering that the current resolutions corresponding to each image frame included in the video to be written are different, the current resolution before the unprocessed image frame can be marked in advance for the image frame written in the video. In this way, the image frame written in the video can be The corresponding current resolution is set, and the target resolution of the initial image frame is determined according to the resolutions of adjacent frames of the initial image frame. The adjacent frames may be previous V frames and/or subsequent U frames, and both V and U are natural numbers. Considering that the correlation of several adjacent frames of the video is good, in order to make the restoration effect better, both V and U are smaller than the preset values. In this way, in one embodiment, the resolution of the previous frame may be used as the target resolution of the initial image frame; in another embodiment, the resolution of the next frame may be used as the target resolution of the initial image frame In another embodiment, the average value of the resolution of the previous frame and the resolution of the next frame can be used as the target resolution of the initial image frame; In another embodiment, the resolution of the previous frames can be and the average of the resolutions of the subsequent frames as the target resolution of the initial image frame, and so on.

In another embodiment, in order to match the to-be-played video with the screen resolution of the terminal device, the present application may also use the screen resolution as the target resolution of the initial image frame and the image frame written into the video.

Wherein, when both the current target video parameter and the video sampling parameter include the color component type, performing pixel value restoration processing on the target image frame written in the video may include: not including all the color components in the target image frame color component set color components, or, if the number of color components in the color component set of the target image frame is less than or equal to the preset number of components, obtain the missing color components in the target image frame, and obtain the target image frame from adjacent frames of the target image frame Adjacent frames, where the adjacent frames may be the previous R frame and/or the next T frame, R and T are both natural numbers, and the color component set of the target adjacent frame includes missing color components. In this way, the pixel value of the target component corresponding to the missing color component of the target image frame can be determined according to the pixel value of the reference component corresponding to the missing color component of the target adjacent frame. If the number of target adjacent frames is one, the reference component pixel value is used as the target component pixel value; if the number of target adjacent frames is at least two, the average of the reference component pixel values is used as the target component pixel value.

Exemplarily, for the target image frame, the set of color components of the previous frame of image is {R}, the set of color components of the next frame of image is {B}, and the set of color components of the target image frame is {G}, then you can set The reference component pixel value of the R color component of the previous frame image is used as the target R component pixel value, and the reference component pixel value of the B color component of the next frame image is used as the target R component pixel value.

It should be noted that, in the case where the color component set of the target image frame includes all the color components, it is not necessary to perform pixel value restoration processing on the target image frame.

Wherein, when both the current target video parameter and the video sampling parameter include the color scale type, the different color components in the image frame written in the video are set as the current color scale; or, it can be determined according to the contrast parameter of the display screen The target level, and set the different color components in the image frame written to the video as the target level. Among them, the larger the contrast, the larger the target color level; on the contrary, the smaller the contrast, the smaller the target color level.

It should be noted that, if the current target video parameters include multiple types of parameters, the to-be-played video may be obtained in combination with the content in the above embodiment, which will not be repeated in this application.

106. Play the video to be played.

It should be noted that when the video to be played is a video obtained by data restoration of the image frame written in the video, the terminal device can cache the video to be played, so that the video to be played does not need to occupy the memory of the terminal device. At this time, this step may include: playing the buffered video to be played. In addition, the terminal device can periodically delete the cached video to be played, so that the terminal device can cache other information and improve the cache efficiency.

With the above-mentioned method, since the stored data amount of the image frame written in the video is small, the terminal device can read a small amount of data during the video playback process, thereby shortening the reading time. In addition, the present application obtains the video to be played by performing data restoration on the image frame written in the video, thereby ensuring the video playback effect and improving the user's visual experience.

FIG. 5 is a structural block diagram of a video processing apparatus provided by an embodiment of the application, as shown in FIG. 5 , including:

an acquisition module 501, configured to acquire the writing instruction of the video to be written in the terminal device; and,

Obtain the video sampling parameters of the to-be-written video according to the write instruction;

The processing module 502 is configured to perform data processing on the video to be written according to the video sampling parameters to obtain image frames of the written video; the memory occupancy of the written video is smaller than the memory of the to-be-written video Occupancy; and,

A write operation is performed on the image frame of the written video.

Optionally, the video sampling parameters include at least one of the following:

Sampling frame rate, sampling resolution, different color component sets, and sampling levels corresponding to different color components respectively; the different color component sets have corresponding sampling periods and/or sampling sequences.

Optionally, the processing module 502 is further configured to obtain the target preset sampling parameter corresponding to the video to be written according to the write instruction, and use the target preset sampling parameter as the video of the video to be written. sampling parameters; or,

Obtain the video content of the to-be-written video according to the write instruction, and determine the video sampling parameters of the to-be-written video according to the video content; or,

Obtain the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory; or,

Obtain the video content of the video to be written and the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory and the video content; or,

The current parameters of the video to be written are acquired according to the write instruction, where the current parameters include at least one of a current frame rate and a current resolution, and the to-be-written video is determined correspondingly according to the current parameters and a preset ratio video sampling parameters of the input video, where the video sampling parameters include at least one of the sampling frame rate and the sampling resolution.

Optionally, the processing module 502 is further configured to determine the video sampling parameter of the to-be-written video according to the video content, including:

If there is a moving object in the video content of the first image frame sequence included in the video to be written, determining the sampling frame rate of the first image frame sequence according to the motion change amount of the moving object; or,

If there is a moving object in the video content of the second image frame sequence included in the video to be written, the sampling resolution of the second image frame sequence is determined according to the motion change amount of the moving object; or,

If there is a scenery object in the video content of the third image frame sequence included in the to-be-written video, then at least one first preset color component set is determined as a color component set corresponding to the third image frame sequence; The number of color components included in the first preset color component set is greater than or equal to a preset number; or,

If there is a scenery object in the video content of the fourth image frame sequence included in the video to be written, it is determined that the first preset color levels of the different color components correspond to the different color components in the fourth image frame sequence Sampling level; wherein, the first preset level is greater than or equal to a preset value.

Optionally, the processing module 502 is further configured to obtain, according to a first preset correspondence, the sampling frame frequency corresponding to the memory availability range to which the available memory belongs, wherein the first preset correspondence includes the memory. the correspondence between the available amount range and the sampling frame rate; or,

Obtain the sampling resolution corresponding to the memory availability range to which the memory availability belongs according to a second preset correspondence, where the second preset correspondence includes the correspondence between the memory availability range and the sampling resolution relationship; or,

Acquire a sampled color component set corresponding to a memory availability range to which the memory availability belongs according to a third preset correspondence, where the third preset correspondence includes a relationship between the memory availability range and the sampled color component set correspondence; or,

Obtain sampling levels of different color components corresponding to the memory availability range to which the memory availability belongs according to a fourth preset correspondence, where the fourth preset correspondence includes the memory availability range, the color components, and The corresponding relationship between the sampling levels.

Optionally, the obtaining module 501 is further configured to, in response to a first storage operation on the storage control on the display interface of the terminal device, obtain a write instruction of the video to be written corresponding to the first storage operation; or ,

In response to the second storage operation on the storage button on the terminal device, obtain the writing instruction of the to-be-written video corresponding to the second storage operation; or,

In the case that it is detected that the written data stream is video data, a write instruction of the to-be-written video corresponding to the written data stream is generated.

Optionally, the video processing module further includes: a playback module;

The processing module 502 is further configured to obtain a video to be played according to the image frame of the written video in the case of receiving a playback instruction for the written video; the to-be-played video includes the written video. An image frame, or the video to be played is a video obtained by performing data restoration on the image frame written in the video;

The playing module is configured to play the to-be-played video.

For the specific content of the video processing apparatus, reference may be made to the content described in the above embodiments of the video processing method, which will not be repeated here.

FIG. 6 shows a structural block diagram of a terminal device provided by an embodiment of the present application. 6 , the terminal device includes: a radio frequency (RF) circuit 610, a memory 620, an input unit 630, a display unit 640, a sensor 650, an audio circuit 660, a wireless fidelity (WiFi) module 670, and a processor 680, and power supply 690 and other components. Those skilled in the art can understand that the structure of the terminal device shown in FIG. 6 does not constitute a limitation on the terminal device, and may include more or less components than shown, or combine some components, or arrange different components.

Below in conjunction with Fig. 6, each constituent component of the terminal equipment is introduced in detail:

The RF circuit 610 can be used for receiving and sending signals during sending and receiving information or during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 680; in addition, the designed uplink data is sent to the base station. Typically, the RF circuit 610 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 610 may communicate with networks and other devices via wireless communications. The above wireless communication can use any communication standard or protocol, including but not limited to global system of mobile communication (GSM), general packet radio service (GPRS), code division multiple access (code division multiple access) , CDMA), wideband code division multiple access (WCDMA), long term evolution (long term evolution, LTE), email, short message service (short messaging service, SMS) and the like.

The memory 620 may be used to store software programs and modules, and the processor 680 executes various functional applications and data processing of the terminal device by running the software programs and modules stored in the memory 620 . The memory 620 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data (such as audio data, phone book, etc.) created by the use of the terminal device, etc. Additionally, memory 620 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 630 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the terminal device. Specifically, the input unit 630 may include a touch panel 631 and other input devices 632 . The touch panel 631, also referred to as a touch screen, can collect user touch operations on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 631). operation), and drive the corresponding connection device according to the preset program. Optionally, the touch panel 631 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 680, and can receive the commands sent by the processor 680 and execute them. In addition, the touch panel 631 can be realized by various types of resistive, capacitive, infrared, and surface acoustic waves. Besides the touch panel 631 , the input unit 630 may further include other input devices 632 . Specifically, other input devices 632 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 640 may be used to display information input by the user or information provided to the user and various menus of the terminal device. The display unit 640 may include a display panel 641, and optionally, the display panel 641 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 631 may cover the display panel 641. When the touch panel 631 detects a touch operation on or near it, it transmits it to the processor 680 to determine the type of the touch event, and then the processor 680 determines the type of the touch event according to the touch event. Type provides corresponding visual output on display panel 641 . Although in FIG. 6 , the touch panel 631 and the display panel 641 are used as two independent components to realize the input and input functions of the terminal device, but in some embodiments, the touch panel 631 and the display panel 641 may be integrated And realize the input and output functions of the terminal equipment.

The terminal device may also include at least one sensor 650, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 641 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 641 and the display panel 641 when the terminal device is moved to the ear. / or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that identify the attitude of terminal devices (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can be configured on the terminal device, here No longer.

The audio circuit 660, the speaker 661, and the microphone 662 can provide an audio interface between the user and the terminal device. The audio circuit 660 can transmit the received audio data converted electrical signal to the speaker 661, and the speaker 661 converts it into a sound signal for output; on the other hand, the microphone 662 converts the collected sound signal into an electrical signal, which is converted by the audio circuit 660 After receiving, it is converted into audio data, and then the audio data is output to the processor 680 for processing, and then sent to, for example, another terminal device through the RF circuit 610, or the audio data is output to the memory 620 for further processing.

WiFi is a short-distance wireless transmission technology. The terminal device can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 670, which provides users with wireless broadband Internet access.

The processor 680 is the control center of the terminal device, and uses various interfaces and lines to connect various parts of the entire terminal device, by running or executing the software programs and/or modules stored in the memory 620, and calling the data stored in the memory 620. , perform various functions of the terminal equipment and process data, so as to monitor the terminal equipment as a whole. Optionally, the processor 680 may include one or more processing units; preferably, the processor 680 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 680 .

The terminal device also includes a power supply 690 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 680 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

Although not shown, the terminal device may also include a camera, a Bluetooth module, and the like, which will not be repeated here.

In this embodiment of the present invention, the processor 680 included in the terminal device also has the following functions:

Obtain the writing instruction of the video to be written in the terminal device;

Obtain the video sampling parameters of the to-be-written video according to the write instruction;

According to the video sampling parameters, data processing is performed on the video to be written to obtain an image frame of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video;

A write operation is performed on the image frame of the written video.

Optionally, the video sampling parameters include at least one of the following:

Sampling frame rate, sampling resolution, different color component sets, and sampling levels corresponding to different color components respectively; the different color component sets have corresponding sampling periods and/or sampling sequences.

Optionally, the processor 680 included in the terminal device also has the following functions:

Acquire the target preset sampling parameter corresponding to the video to be written according to the write instruction, and use the target preset sampling parameter as the video sampling parameter of the video to be written; or,

Obtain the video content of the to-be-written video according to the write instruction, and determine the video sampling parameters of the to-be-written video according to the video content; or,

Obtain the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory; or,

Obtain the video content of the video to be written and the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory and the video content; or,

The current parameters of the video to be written are acquired according to the write instruction, where the current parameters include at least one of a current frame rate and a current resolution, and the to-be-written video is determined correspondingly according to the current parameters and a preset ratio video sampling parameters of the input video, where the video sampling parameters include at least one of the sampling frame rate and the sampling resolution.

Optionally, the processor 680 included in the terminal device also has the following function: if there is a moving object in the video content of the first image frame sequence included in the video to be written, then according to the movement change amount of the moving object determining the sampling frame rate of the first sequence of image frames; or,

If there is a moving object in the video content of the second image frame sequence included in the video to be written, the sampling resolution of the second image frame sequence is determined according to the motion change amount of the moving object; or,

If there is a scenery object in the video content of the third image frame sequence included in the to-be-written video, then at least one first preset color component set is determined as a color component set corresponding to the third image frame sequence; The number of color components included in the first preset color component set is greater than or equal to a preset number; or,

If there is a scenery object in the video content of the fourth image frame sequence included in the video to be written, it is determined that the first preset color levels of the different color components correspond to the different color components in the fourth image frame sequence Sampling level; wherein, the first preset level is greater than or equal to a preset value.

Optionally, the processor 680 included in the terminal device further has the following function: according to the first preset correspondence, obtain the sampling frame frequency corresponding to the range of the available memory to which the available memory belongs, wherein the first preset The corresponding relationship includes the corresponding relationship between the memory availability range and the sampling frame rate; or,

Obtain the sampling resolution corresponding to the memory availability range to which the memory availability belongs according to a second preset correspondence, where the second preset correspondence includes the correspondence between the memory availability range and the sampling resolution relationship; or,

Acquire a sampled color component set corresponding to a memory availability range to which the memory availability belongs according to a third preset correspondence, where the third preset correspondence includes a relationship between the memory availability range and the sampled color component set correspondence; or,

Obtain sampling levels of different color components corresponding to the memory availability range to which the memory availability belongs according to a fourth preset correspondence, where the fourth preset correspondence includes the memory availability range, the color components, and The corresponding relationship between the sampling levels.

Optionally, the processor 680 included in the terminal device also has the following function: in response to a first storage operation on the storage control on the display interface of the terminal device, acquiring the to-be-written corresponding to the first storage operation write instructions for the video; or,

In response to the second storage operation on the storage button on the terminal device, obtain the writing instruction of the to-be-written video corresponding to the second storage operation; or,

In the case that it is detected that the written data stream is video data, a write instruction of the to-be-written video corresponding to the written data stream is generated.

Optionally, the processor 680 included in the terminal device also has the following functions: in the case of receiving a playback instruction for the written video, acquiring the video to be played according to the image frame of the written video; The to-be-played video includes the image frame of the written video, or the to-be-played video is a video obtained by performing data restoration on the image frame of the written video; and,

Play the to-be-played video.

An embodiment of the present invention further provides a terminal device, the terminal device may include a processor, a memory, and a computer program stored in the memory and running on the processor, the computer program being executed by the processor may implement the above method embodiments Each process performed by the terminal device can achieve the same technical effect. In order to avoid repetition, details are not repeated here.

An embodiment of the present application provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process performed by the terminal device in the foregoing method embodiments is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

Wherein, the computer-readable storage medium may be a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods of the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (10)

1. a video processing method, is characterized in that, comprises: Obtain the writing instruction of the video to be written in the terminal device; Obtain the video sampling parameters of the to-be-written video according to the write instruction; According to the video sampling parameters, data processing is performed on the video to be written to obtain an image frame of the written video; the memory occupancy of the written video is smaller than the memory occupancy of the to-be-written video; A write operation is performed on the image frame of the written video. 2. The method according to claim 1, wherein the video sampling parameters comprise at least one of the following: Sampling frame rate, sampling resolution, different color component sets, and sampling levels corresponding to different color components respectively; the different color component sets have corresponding sampling periods and/or sampling sequences. 3. The method according to claim 2, wherein the acquiring the video sampling parameters of the to-be-written video according to the writing instruction comprises: Acquire the target preset sampling parameter corresponding to the video to be written according to the write instruction, and use the target preset sampling parameter as the video sampling parameter of the video to be written; or, Obtain the video content of the to-be-written video according to the write instruction, and determine the video sampling parameters of the to-be-written video according to the video content; or, Obtain the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory; or, Obtain the video content of the video to be written and the available memory of the terminal device according to the write instruction, and determine the video sampling parameter of the video to be written according to the available memory and the video content; or, The current parameters of the video to be written are acquired according to the write instruction, where the current parameters include at least one of a current frame rate and a current resolution, and the to-be-written video is determined correspondingly according to the current parameters and a preset ratio video sampling parameters of the input video, where the video sampling parameters include at least one of the sampling frame rate and the sampling resolution. 4. The method according to claim 3, wherein determining the video sampling parameters of the to-be-written video according to the video content comprises: If there is a moving object in the video content of the first image frame sequence included in the video to be written, determining the sampling frame rate of the first image frame sequence according to the motion change amount of the moving object; or, If there is a moving object in the video content of the second image frame sequence included in the video to be written, the sampling resolution of the second image frame sequence is determined according to the motion change amount of the moving object; or, If there is a scenery object in the video content of the third image frame sequence included in the to-be-written video, then at least one first preset color component set is determined as a color component set corresponding to the third image frame sequence; The number of color components included in the first preset color component set is greater than or equal to a preset number; or, If there is a scenery object in the video content of the fourth image frame sequence included in the video to be written, it is determined that the first preset color levels of the different color components correspond to the different color components in the fourth image frame sequence Sampling level; wherein, the first preset level is greater than or equal to a preset value. 5. The method according to claim 3, wherein the determining the video sampling parameter of the video to be written according to the available memory comprises: According to a first preset correspondence relationship, the sampling frame frequency corresponding to the memory availability range to which the memory availability belongs is obtained, wherein the first preset correspondence relationship includes the difference between the memory availability range and the sampling frame frequency correspondence; or, Obtain the sampling resolution corresponding to the memory availability range to which the memory availability belongs according to a second preset correspondence, where the second preset correspondence includes the correspondence between the memory availability range and the sampling resolution relationship; or, Acquire a sampled color component set corresponding to a memory availability range to which the memory availability belongs according to a third preset correspondence, where the third preset correspondence includes a relationship between the memory availability range and the sampled color component set correspondence; or, Obtain sampling levels of different color components corresponding to the memory availability range to which the memory availability belongs according to a fourth preset correspondence, where the fourth preset correspondence includes the memory availability range, the color components, and The corresponding relationship between the sampling levels. 6. The method according to claim 1, wherein the acquiring the writing instruction of the video to be written in the terminal device comprises: In response to the first storage operation on the storage control on the display interface of the terminal device, obtain a write instruction of the video to be written corresponding to the first storage operation; or, In response to the second storage operation on the storage button on the terminal device, obtain the writing instruction of the to-be-written video corresponding to the second storage operation; or, In the case that it is detected that the written data stream is video data, a write instruction of the to-be-written video corresponding to the written data stream is generated. 7. The method according to any one of claims 1 to 6, further comprising: In the case of receiving a playback instruction for the written video, obtain the video to be played according to the image frame of the written video; the to-be-played video includes the image frame of the written video, or the The video to be played is a video obtained by performing data restoration on the image frame written in the video; Play the to-be-played video. 8. A video processing device, comprising: an acquisition module, used to acquire the writing instruction of the video to be written in the terminal device; and, Obtain the video sampling parameters of the to-be-written video according to the write instruction; A processing module, configured to perform data processing on the video to be written according to the video sampling parameters, to obtain the image frame of the written video; the memory occupancy of the written video is smaller than the memory footprint of the to-be-written video memory footprint; and, A write operation is performed on the image frame of the written video. 9. A terminal device, characterized in that it comprises a processor and a memory, the processor and the memory are coupled, and the memory is used to store computer program instructions, and when the processor executes the computer program instructions, the terminal The device performs the video processing method of any one of claims 1 to 7. 10. A computer storage medium, characterized in that, program instructions are stored in the computer storage medium, and when the program instructions are run on a terminal device, the terminal device is made to execute any one of claims 1 to 7. video processing method.

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