CN108366218A - Video file forming method and device, computer readable storage medium, picture pick-up device - Google Patents
Video file forming method and device, computer readable storage medium, picture pick-up device Download PDFInfo
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- CN108366218A CN108366218A CN201810337187.2A CN201810337187A CN108366218A CN 108366218 A CN108366218 A CN 108366218A CN 201810337187 A CN201810337187 A CN 201810337187A CN 108366218 A CN108366218 A CN 108366218A
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- video file
- video
- video data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
- H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
A kind of video file forming method and device, computer readable storage medium, picture pick-up device, video file forming method include:When memory space shared by the obtained video data of shooting reaches predetermined threshold value, the video data is compressed;Contents extraction is carried out to compressed video data, to form new video file.Technical solution of the present invention can effectively reduce the occupied memory space of video data.
Description
Technical field
The present invention relates to technical field of data processing more particularly to a kind of video file forming method and device, computers
Readable storage medium storing program for executing, picture pick-up device.
Background technology
With the development of technique for taking, capture apparatus is more and more universal.More capture apparatus are applied in various applied fields
Jing Zhong.
Existing video recording equipment can store all video datas that shooting obtains in video recording.
But the data volume of video data is larger, the memory space of occupancy is also bigger.Increase storage in picture pick-up device
Capacity will greatly increase the cost of picture pick-up device.How to store more video datas and be in the case that memory capacity is limited
One urgent problem to be solved.
Invention content
Present invention solves the technical problem that being how to effectively reduce the occupied memory space of video data.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of video file forming method, video file is formed
Method includes:
When memory space shared by the obtained video data of shooting reaches predetermined threshold value, the video data is pressed
Contracting;Contents extraction is carried out to compressed video data, to form new video file.
Optionally, the video data includes main bit stream data and subcode flow data, described to be carried out to the video data
Compression includes:The primary key flow data is deleted, the subcode flow data is retained.
Optionally, described to include to compressed video data progress contents extraction:Extract the compressed video counts
I frame data in, to form the new video file.
Optionally, the video file forming method further includes:The new video file is stored.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of video file forming apparatus, video file
Forming apparatus includes:
Compression module, when reaching predetermined threshold value suitable for the memory space shared by the obtained video data of shooting, to described
Video data is compressed;Extraction module is suitable for carrying out contents extraction to compressed video data, to form new video recording text
Part.
Optionally, the video data includes main bit stream data and subcode flow data, and the compression module deletes the master
Bit stream data retains the subcode flow data.
Optionally, the extraction module extracts the I frame data in the compressed video data, described new to be formed
Video file.
Optionally, the video file forming apparatus further includes:Memory module is suitable for carrying out the new video file
Storage.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of computer readable storage medium, deposit thereon
Computer instruction is contained, when the computer instruction is run described in right of execution the step of video file forming method.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of picture pick-up device, including memory and processing
Device, the computer instruction that can be run on the processor is stored on the memory, and the processor runs the calculating
The step of machine executes the video file forming method when instructing.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that:
When memory space of the technical solution of the present invention shared by the obtained video data of shooting reaches predetermined threshold value, to described
Video data is compressed;Contents extraction is carried out to compressed video data, to form new video file.The technology of the present invention
The video data that scheme shoots picture pick-up device has carried out preliminary compression first, reduces depositing shared by video data
Store up space;Contents extraction has been carried out to compressed data again, has retained the critical data of the video data, to not influence
The memory space shared by new video file is further reduced on the basis of user's viewing so that picture pick-up device is deposited smaller
In the case of reserves, more Video datas can be stored, improve the performance of picture pick-up device, reduce picture pick-up device at
This.
Further, the video data includes main bit stream data and subcode flow data, it is described by the video data into
Row compresses:The primary key flow data is deleted, the subcode flow data is retained.In technical solution of the present invention, due to video counts
Primary key flow data in is high-resolution data, and the memory space of occupancy is larger, therefore by deleting primary key flow data, is only protected
The mode for staying subcode flow data reduces the data volume of compressed video data, to reduce the memory space of its occupancy.
Further, described to include to compressed video data progress contents extraction:Extract the compressed video
I frame data in data, to form the new video file.In technical solution of the present invention, due to the I frame numbers in video data
According to being relatively independent in coding and decoding, other frame data are needed not rely on, therefore be used as newly by extracting I frame data
Video file, it is ensured that the visibility of new video file is not influencing base of the user to the viewing experience of video data
On plinth, the memory space shared by new video file is further reduced.
Description of the drawings
Fig. 1 is a kind of flow chart of video file forming method of the embodiment of the present invention;
Fig. 2 is the flow chart of another kind video file forming method of the embodiment of the present invention;
Fig. 3 is a kind of structural schematic diagram of video file forming apparatus of the embodiment of the present invention.
Specific implementation mode
As described in the background art, the data volume of video data is larger in the prior art, and the memory space of occupancy also compares
Greatly.The cost of picture pick-up device will be greatly increased by increasing memory capacity in picture pick-up device.How in the limited feelings of memory capacity
It is a urgent problem to be solved that more video datas are stored under condition.
The video data that technical solution of the present invention shoots picture pick-up device has carried out preliminary compression first, contracting
Memory space shared by small video data;Contents extraction has been carried out to compressed data again, has retained the pass of the video data
Key data carries to further reduce the memory space shared by new video file on the basis of not influencing user and watching
The performance for having risen picture pick-up device reduces the cost of picture pick-up device.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of flow chart of video file forming method of the embodiment of the present invention.
Video file forming method shown in Fig. 1 can be used for picture pick-up device, and the video file forming method may include
Following steps:
Step S101:When memory space shared by the obtained video data of shooting reaches predetermined threshold value, to the video
Data are compressed;
Step S102:Contents extraction is carried out to compressed video data, to form new video file.
In the present embodiment, the usual configuration storage space of picture pick-up device, to store the video data captured by picture pick-up device.For
Video data, can be formed new video file and store by the sufficient memory space using picture pick-up device.
In specific implementation, the predetermined threshold value can be pre-set.Predetermined threshold value can be the absolute of memory space
Value, such as 3GB, 2GB etc.;Predetermined threshold value can also be the percentage of the memory space of picture pick-up device.For example, shooting obtain regard
When frequency reaches the 50% of the memory space of picture pick-up device according to shared memory space, video data is compressed.
It should be noted that predetermined threshold value can be custom-configured by user according to actual application environment, this hair
Bright embodiment is without limitation.
In the specific implementation of step S101, the process compressed to video data can reduce the data of video data
Amount.Compressed video data can be with normal play.
Specifically, it is more than due to having memory space shared by the video data of high-resolution and has low resolution
Memory space shared by video data, therefore the process compressed to video data can will be provided with regarding for high-resolution
Frequency evidence is converted to the video data for having low resolution.
The process that video data is compressed can also be the format of video data is converted, such as:By format
For the video data of Audio Video Interleaved (Audio Video Interleaved, AVI), to be converted to format be windows media
The video data of video (Windows Media Video, WMV), the video data of different-format according to data volume from big to small
Sequence be AVI, WMV, Motion Picture Experts Group (Moving Picture Experts Group, MPEG-2), media object
(Video Object, VOB), MP4, MOV, MPEG, RM variable bit rate (Real Media Variable Bitrate,
RMVB), real-time media stream (Real Media, RM), fast Media Stream (Flash Video, FLV).
It is more than the video counts having compared with low bit rate due to having the memory space shared by the video data of higher bit rate
According to shared memory space, therefore the process compressed to video data can also be the video counts that will be provided with higher bit rate
According to being converted to the video data having compared with low bit rate.
It, can be to pressure in the specific implementation of step S102 in order to further decrease the memory space shared by video data
Video data after contracting carries out contents extraction.Specifically, the process for carrying out contents extraction to compressed video data can be with
It is to extract important frame in video data upon compression.The important frame can be chosen according to coding independency principle, can also
It is chosen according to video content.
Relative to the compressed video data obtained by step S101, the new video recording obtained after contents extraction
File has less frame data, occupies less memory space.
It is understood that the new video file can also be the data of video format.
The video data that the embodiment of the present invention shoots picture pick-up device has carried out preliminary compression first, reduces
Memory space shared by video data;Contents extraction has been carried out to compressed data again, has retained the key of the video data
Data are promoted to further reduce the memory space shared by new video file on the basis of not influencing user and watching
The performance of picture pick-up device, reduces the cost of picture pick-up device.
In a specific embodiment of the invention, it can also include the following steps after step S102 shown in Fig. 1:It will be described new
Video file stored.
Specifically, after obtaining new video file, the new video file is stored into picture pick-up device.As a result,
In the limited memory space of picture pick-up device, more data, namely more new video files can be stored.
In a preferred embodiment of the invention, the video data includes main bit stream data and subcode flow data.
Specifically, the encoder of picture pick-up device can generate the data of two different coded formats simultaneously:Primary key fluxion
According to subcode flow data.Dicode Flow Technique can take into account high quality graphic transmission and narrow bandwidth transmission.
Further, primary key flow data can refer to using the bit stream data using high code rate, and subcode flow data can be with
Refer to using the bit stream data compared with low bit- rate.
Referring to Fig.1 and 2, step S101 shown in Fig. 1 may include step S201:The primary key flow data is deleted, is protected
Stay the subcode flow data.
Since the code check of data is higher, the data volume of data is bigger, and the memory space that data occupy is bigger, therefore in order to subtract
Small data quantity reduces the memory space that data occupy, can delete the primary key flow data, retain the subcode flow data.
In the embodiment of the present invention, since the primary key flow data in video data is high-resolution data, the storage of occupancy is empty
Between it is larger, therefore by delete primary key flow data, only retain subcode flow data mode, reduce the number of compressed video data
According to amount, to reduce the memory space of its occupancy.
In another preferred embodiment of the present invention, with continued reference to Fig. 2, step S102 shown in Fig. 1 may include step S202:
The I frame data in the compressed video data are extracted, to form the new video file.
In the present embodiment, I frames (I frame) are referred to as Intra pictures (intra picture), intracoded frame.I
Frame is a kind of independent frame of included all information, can be independently decoded without reference to other images.In video sequence
One frame is all I frames always, and I frames are key frames, including complete picture.
As a result, by extracting the I frame data in the compressed video data, it can not only retain the pass of video data
Key information can also reduce data volume.
And then in step S203, the new video file is stored.Specifically, by the new video file
It stores to picture pick-up device, so as to reduce the occupancy of memory space in picture pick-up device so that the memory space of picture pick-up device
More data can be stored.
In inventive embodiments, due to the I frame data in video data be in coding and decoding it is relatively independent, need not be according to
Rely others frame data, therefore by extract I frame data be used as new video file, it is ensured that new video file it is considerable
The property seen further reduces on the basis of not influencing viewing experience of the user to video data shared by new video file
Memory space.
Fig. 3 is please referred to, the video file forming apparatus 30 can be used for picture pick-up device.Video file forming apparatus 30 can
To be internally integrated or outside is coupled to picture pick-up device.
Video file forming apparatus 30 may include compression module 301 and extraction module 302.
Wherein, when compression module 301 is suitable for the memory space shared by the obtained video data of shooting and reaches predetermined threshold value,
The video data is compressed;Extraction module 302 is suitable for carrying out contents extraction to compressed video data, new to be formed
Video file.
In specific implementation, the predetermined threshold value can be pre-set.Predetermined threshold value can be the absolute of memory space
Value, such as 3GB, 2GB etc.;Predetermined threshold value can also be the percentage of the memory space of picture pick-up device.For example, shooting obtain regard
When frequency reaches the 50% of the memory space of picture pick-up device according to shared memory space, compression module 301 carries out video data
Compression.
Specifically, it is more than due to having memory space shared by the video data of high-resolution and has low resolution
Memory space shared by video data, therefore the process compressed to video data can will be provided with regarding for high-resolution
Frequency evidence is converted to the video data for having low resolution.
The process that video data is compressed can also be the format of video data is converted, such as:By format
Be converted to the video data that format is WMV for the video data of AVI, the video data of different-format according to data volume from big to small
Sequence be AVI, WMV, MPEG-2, VOB, MP4, MOV, MPEG, RMVB, RM, FLV.
It is more than the video counts having compared with low bit rate due to having the memory space shared by the video data of higher bit rate
According to shared memory space, therefore the process compressed to video data can also be the video counts that will be provided with higher bit rate
According to being converted to the video data having compared with low bit rate.
The video data that the embodiment of the present invention shoots picture pick-up device has carried out preliminary compression first, reduces
Memory space shared by video data;Contents extraction has been carried out to compressed data again, has retained the key of the video data
Data are promoted to further reduce the memory space shared by new video file on the basis of not influencing user and watching
The performance of picture pick-up device, reduces the cost of picture pick-up device.
In a preferred embodiment of the invention, the video data may include primary key flow data and subcode flow data, institute
The primary key flow data can be deleted by stating compression module 301, retain the subcode flow data.
In the embodiment of the present invention, since the primary key flow data in video data is high-resolution data, the storage of occupancy is empty
Between it is larger, therefore by delete primary key flow data, only retain subcode flow data mode, reduce the number of compressed video data
According to amount, to reduce the memory space of its occupancy.
In another preferred embodiment of the present invention, the extraction module 302 extracts the I in the compressed video data
Frame data, to form the new video file.
In the embodiment of the present invention, since the I frame data in video data are relatively independent in coding and decoding, do not need
Rely on other frame data, therefore be used as new video file by extracting I frame data, it is ensured that new video file can
Viewing property, on the basis of not influencing viewing experience of the user to video data, further reduces shared by new video file
Memory space.
In a specific embodiment of the invention, as shown in figure 3, video file forming apparatus 30 may include memory module
303, suitable for the new video file is stored.
Operation principle, more contents of working method about the video file forming apparatus 30, are referred to Fig. 1 extremely
Associated description in Fig. 2, which is not described herein again.
The embodiment of the invention also discloses a kind of computer readable storage mediums, are stored thereon with computer instruction, described
The step of computer instruction can execute video file forming method shown in fig. 1 or fig. 2 when running.The storage medium can
To include ROM, RAM, disk or CD etc..The storage medium can also include non-volatility memorizer (non-volatile)
Or non-transient (non-transitory) memory etc..
The embodiment of the invention also discloses a kind of picture pick-up device, the picture pick-up device may include memory and processor,
The computer instruction that can be run on the processor is stored on the memory.The processor runs the computer and refers to
The step of video file forming method shown in fig. 1 or fig. 2 can be executed when enabling.The picture pick-up device includes but not limited to take the photograph
The equipment such as camera, mobile phone, camera, tablet computer, computer.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of video file forming method, which is characterized in that including:
When memory space shared by the obtained video data of shooting reaches predetermined threshold value, the video data is compressed;
Contents extraction is carried out to compressed video data, to form new video file.
2. video file forming method according to claim 1, which is characterized in that the video data includes main bit stream number
According to subcode flow data, it is described to the video data carry out compression include:
The primary key flow data is deleted, the subcode flow data is retained.
3. video file forming method according to claim 1, which is characterized in that it is described to compressed video data into
Row contents extraction includes:
The I frame data in the compressed video data are extracted, to form the new video file.
4. video file forming method according to any one of claims 1 to 3, which is characterized in that further include:
The new video file is stored.
5. a kind of video file forming apparatus, which is characterized in that including:
Compression module, when reaching predetermined threshold value suitable for the memory space shared by the obtained video data of shooting, to the video
Data are compressed;
Extraction module is suitable for carrying out contents extraction to compressed video data, to form new video file.
6. video file forming apparatus according to claim 5, which is characterized in that the video data includes main bit stream number
According to subcode flow data, the compression module deletes the primary key flow data, retains the subcode flow data.
7. video file forming apparatus according to claim 5, which is characterized in that the extraction module extracts the compression
I frame data in video data afterwards, to form the new video file.
8. according to claim 5 to 7 any one of them video file forming apparatus, which is characterized in that further include:
Memory module, suitable for storing the new video file.
9. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction fortune
Perform claim requires the step of any one of 1 to 4 video file forming method when row.
10. a kind of picture pick-up device, including memory and processor, it is stored with and can runs on the processor on the memory
Computer instruction, which is characterized in that perform claim is any in requiring 1 to 4 when the processor runs the computer instruction
The step of item video file forming method.
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