CN102724490A - Code stream control method and device - Google Patents
Code stream control method and device Download PDFInfo
- Publication number
- CN102724490A CN102724490A CN2012101811762A CN201210181176A CN102724490A CN 102724490 A CN102724490 A CN 102724490A CN 2012101811762 A CN2012101811762 A CN 2012101811762A CN 201210181176 A CN201210181176 A CN 201210181176A CN 102724490 A CN102724490 A CN 102724490A
- Authority
- CN
- China
- Prior art keywords
- code stream
- value
- parameter
- code
- coding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a code stream control method, which comprises the following steps of: judging whether a testing cycle reaches, and if so, counting the size Scur of total actual code streams transmitted until current time, and calculating the size Sdst of total preset code streams corresponding to the current time; and judging whether the size Sredu of redundant code streams are greater than zero, and if so, executing the code stream control processing, otherwise, returning, wherein Sredu = Scur - Sdst. In the process of controlling the code streams, the code stream control processing is executed from the perspectives of remaining storage time, current motion quantity and the size of the redundant code streams. Based on a conception same as that of the method, the invention also provides a code stream control device. After the technology disclosed by the invention is applied to a coding device, the optimal video-coded code stream can be obtained by a variable bit rate technology according to an image effect, and a required storage space can be accurately calculated in combination with the actual needs of storage service.
Description
Technical field
The present invention relates to field of video monitoring, relate in particular to a kind of method and apparatus of code stream control.
Background technology
Video coding and decoding technology has a wide range of applications in the digital video monitoring field.The code stream control algolithm of coding and decoding video comprises CBR and VBR two big classes.CBR (cbr (constant bit rate) coding) all occasions with all use identical code check coding; VBR (variable bit rate coding) uses the different code rate coding according to the difference of scene.The general requirement of digital video monitor system preserved the audio-video code stream of capturing and coding, so that the subsequent query analysis.This memory space to data has certain requirement.Current in the project implementation, no matter video encoder adopts CBR or VBR, all can't well calculate memory space, obtains optimum memory space allocation plan.
When encoding device adopts the CBR algorithm, can adopt the target bit rate value of CBR to estimate the memory space that supervisory control system needs.Wasted effective memory space when but CBR algorithm itself will cause simple scenario, and when complex scene, overflowed, can not adopt bigger code check to encode again in order to prevent memory space.Therefore supervisory control system just can not be in the memory space of a constant volume maximal efficiency obtain the monitoring code stream the most clear, that effect is best.
When encoding device adopts the VBR algorithm, can adopt the maximal rate of VBR, perhaps estimate that an average bit rate calculates the memory space that supervisory control system needs.If but adopt the maximal rate of VBR to calculate memory space, the capacity of memory device that will cause selecting is excessive, the waste storage resources; If adopt the average bit rate of estimating to calculate memory space, or the capacity of memory device of selecting is too small, loses the storage data, or the capacity of memory device of selecting is excessive, the waste storage resources.
Summary of the invention
In view of this; The present invention provides a kind of method of code stream control, and this method is applied to it is characterized in that on the encoding device; This method comprises the steps: A, judges whether to arrive sense cycle; If arrive, counting on the current time has transmitted the big or small Scur of total actual code stream, calculates the total preset code stream big or small Sdst corresponding with the current time; B, whether judge unnecessary code stream Sredu greater than 0, Sredu=Scur-Sdst wherein is if not, return steps A; If, execution in step C; Remaining time is stored in C, calculating; If remaining time, then query time coding parameter table was encoded with the coding parameter that obtains less than preset pre-warning time threshold value t; Return steps A, wherein the corresponding relation of this time encoding parameter list record remaining time and coding parameter; If remaining time is greater than t, execution in step D; D, the current amount of exercise of calculating; If current motion value is then inquired about motion encoded parameter list less than predetermined movement value m, encode with the coding parameter that obtains; Return steps A, the corresponding relation between this motion encoded parameter list record amount of exercise and the coding parameter; If current amount of exercise is greater than predetermined movement value m, then execution in step E; If the unnecessary code stream Sredu value of calculating among the E step B is then inquired about code redundant stream encryption parameter list greater than preset code redundant flow valuve s, encode with the coding parameter that obtains, return steps A; This code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter; If unnecessary code stream returns steps A less than s.
More preferably, the coding parameter among the step D is specially the frame per second of coding.
More preferably, if current amount of exercise is greater than predetermined movement value m, then execution in step F among the step D; F, judge that the current frame per second of whether having fallen handles, if, recover normal frame rate and encode, return steps A; If not, execution in step E.
More preferably, the coding parameter in step C and the step e is picture group GOP and/or quantization parameter QP.
More preferably, if unnecessary code stream is less than s in the step e, execution in step G then; G, judge the current correction of GOP value and/or QP value of whether having carried out, if, recover normal GOP value and/or QP value, return steps A; If, do not return steps A.
The present invention also provides a kind of device of code stream control, and this device is applied on the encoding device, and this device comprises: code stream size detection module; Count on the big or small Scur of total actual code stream that the current time transmitted when being used to arrive sense cycle; Calculate the total preset code stream size Sdst corresponding, whether judge unnecessary code stream Sredu greater than 0, wherein Sredu=Scur-Sdst with the current time; Carry out the detection of code stream if not, wait for next sense cycle arrival; If, notification code flow control module actuating code flow control process; The code stream control module; After being used to receive the notice actuating code current control of detection module, calculating and store remaining time, if remaining time is less than preset pre-warning time threshold value t; Query time coding parameter table then; Obtain the corresponding codes parameter, the notice coding module is encoded with the coding parameter that obtains, wherein the corresponding relation of this time encoding parameter list record remaining time and coding parameter; If remaining time is greater than t; Calculate current amount of exercise; If current motion value is then inquired about motion encoded parameter list less than predetermined movement value m, obtain the corresponding codes parameter; The notice coding module is encoded with the coding parameter that obtains, the corresponding relation between this motion encoded parameter list record amount of exercise and the coding parameter; If current amount of exercise is greater than predetermined movement value m; And unnecessary code stream Sredu value is greater than preset code redundant flow valuve s; Then inquire about code redundant stream encryption parameter list; Obtain the corresponding codes parameter, the notice coding module is encoded with the coding parameter that obtains, and this code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter.Coding module is used for encoding with the coding parameter that obtains.
More preferably, the coding parameter in the motion encoded parameter is specially the frame per second of coding.
More preferably, the code stream control module is used at current amount of exercise greater than predetermined movement value m, judges that the current frame per second of whether having fallen handles, if recover normal frame rate; If not; Continue to carry out greater than preset code redundant flow valuve s in unnecessary code stream Sredu value; Inquiry code redundant stream encryption parameter list; Obtain the corresponding codes parameter, the processing that the notice coding module is encoded with the coding parameter that obtains, this code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter;
More preferably, the coding parameter in said time encoding parameter list and the code redundant stream encryption parameter list is picture group GOP and/or quantization parameter QP.
More preferably, the code stream control module if be used for unnecessary code stream less than s, is judged the current correction of GOP value and/or QP value of whether having carried out, if recover normal GOP value and/or QP value.
After using technology of the present invention, both can adopt the variable bit rate technology to obtain best video coding code stream, and can combine the actual needs of storage service to accurately calculate the memory space of needs again according to image effect.
Description of drawings
Fig. 1 is a kind of video monitoring system sketch map.
Fig. 2 is an embodiment of the present invention flow chart.
Embodiment
Video monitoring system as shown in Figure 1, monitoring server is formulated storage policy, and the video code flow that encoding device and memory device will be gathered and encode according to this storage policy is stored on the memory device.Before the system works, can be rule of thumb, the average bit rate that disposes one road monitoring video flow is A, confirms the size of memory space again according to the time of this road monitoring video flow storage.This memory space is just as the memory space of distributing to this road monitoring video flow.
With reference to figure 2, encoding device carries out the schematic flow sheet of code stream control.Encoding device is started working, and starts the control of coding and code stream.The code stream control device of this encoding device can be divided on logic function: code stream size detection module, code stream control module and coding module.Below carry out the detailed description of the embodiment of the invention.
Step 1, judge whether to arrive sense cycle,, add up the big or small Scur of current total actual code stream, calculates the big or small Sdst of current preset code stream always if arrive.This step is carried out by code stream size detection module.
Encoding device preestablished sense cycle T, such as sense cycle is set at 1 minute, promptly whenever started one-time detection at a distance from 1 minute.The size of sense cycle can combine keeper's practical business experience to set according to actual conditions.Can preestablish an average bit rate A; Current point in time is B apart from the time span of the time point of device start coding; Then current total preset code stream size is: A*B; Preset average code stream is equivalent to a kind of expectation of keeper for memory space, such as the keeper plans a storage total time (such as 30 days video flowing of storage).Total exactly average code flow rate * 30 of its planning day can this road code stream can take memory space, therefore store total time and be from according to preset average bit rate.The size of current actual code stream is to start to the code stream size that the current point in time actual coding produces from coding, and actual code stream size how to detect and statistics belongs to mature technology, no longer details.
Step 2, whether judge unnecessary code stream Sredu=Scur-Sdst, if not, return step 1 greater than 0; If, execution in step 3.This step is carried out by code stream size detection module.
If total actual code stream Scur that current statistics obtains is greater than preset total code stream Sdst; The expectation that the space that explanation has consumed at current this time point memory device has surmounted the keeper; Be not enough to deal with the code stream storage demand of remaining time for fear of remaining space, can fall code stream in advance and handle, be equivalent to the expending equilibrium of the expectation that surmounts the keeper is returned; If be not more than; Then explanation meets keeper's meteorology expectation, and can return step 1 this moment, continues to wait for the arrival of next sense cycle.
Remaining time is stored in step 3, calculating, if remaining time is less than pre-warning time threshold value t, then query time coding parameter table; Obtain coding parameter; Coding parameter to obtain is encoded, and returns step 1, the corresponding relation of this time encoding parameter list record remaining time and coding parameter; If remaining time is greater than t, execution in step 4." coding parameter to obtain is encoded " in this step carried out by coding module.In addition action is carried out by the code stream control module.
Here the coding parameter that writes down in the time encoding parameter list can be GOP, or QP, or GOP and QP.Describe with GOP and QP below.
Falling when code stream handles, calculating storage remaining time, storage remaining time=deduct storage total time is current carries out memory time; As previously mentioned, encoding device begins memory code with preset average bit rate and flows to the time that total memory space is filled with cost and be storage total time, promptly should be that total memory space is divided by average bit rate the time.Total the memory space that is filled with such as present encoding equipment will spend 30 days, current the storage 20 days 10 hours is be exactly that stores 9 days 14 hours remaining time.If remaining time is less than pre-warning time threshold value t, with regard to query time coding parameter table.The time separation of preset pre-warning time threshold value t query time coding parameter table as whether; If current remaining time is less than preset pre-warning time threshold value t; Show to be about to arrive the time that a memory cycle finishes that need fall code check this time immediately largely and handle, the time encoding parameter list has then write down the coding parameter that need adjust when falling code check; Such as the GOP value of needs increase and the QP value that increases; Remaining time is few more, and the GOP value needs the many more of increase, and it is many more that the QP value also need increase.GOP value of putting down in writing in the table and QP value can be that absolute value also can be a relative value.If relative value then increases this relative value that inquires on GOP value of encoding before and QP value.Query time coding parameter table in the step 3, encoding with the coding parameter that obtains comprises the above-mentioned new coding parameter that obtains after calculating with the absolute value that inquires and the relative value two kinds of situation of encoding.In addition, can be equal to the current time of having deposited remaining time, because remaining time and current time sum of having deposited are fixed values, so so that remaining time, perhaps the current time of having deposited all was fine to the coding parameter in requisition for adjustment.Table 1 has provided the example of the corresponding relation of remaining time and GOP value and QP value.When query time coding parameter table, with the storage remaining time that calculates be that index removes coding parameter table match time.If remaining time is less than preset pre-warning time threshold value t, then current also not arrivals the degree of code stream processing need be fallen according to the time encoding parameter list.Often the time encoding parameter list influence that code stream handles for the audio/video flow actual effect is fallen and may be bigger, be a kind of processing mode till must not be then.Usually, if sense cycle is smaller, not too can uses this mode and fall the code check processing.Because handling process of the present invention is in design, other processing mode of falling code check is limited to the influence of audio/video flow actual effect.
Table 1
Step 4, the current amount of exercise of calculating are if current motion value is then inquired about motion encoded parameter list less than predetermined movement value m; Obtain coding parameter; Coding parameter to obtain is encoded, and returns step 1, the corresponding relation between this motion encoded parameter list record amount of exercise and the coding parameter; If current amount of exercise is greater than predetermined movement value m, then execution in step 5." coding parameter to obtain is encoded " in this step carried out by coding module.In addition action is carried out by the code stream control module.
The coding parameter that writes down in the motion encoded parameter list here can be a frame per second.Below be that frame per second describes with the coding parameter.
When picture does not have motion or amount of exercise more after a little while, can reduce the average bit rate of a sense cycle through the mode that reduces frame per second, this mode is very little for the quality influence of image.Whether preset motion value m moves according to picture to fall a critical value of frame per second, and this value is set according to the scene and the experience of reality.If the current motion value that calculates explains that less than m current amount of exercise is very little, can reduce the frame per second of coding, the frame per second processing is fallen according to amount of exercise that writes down in the motion encoded parameter list and frame per second corresponding relation.With the current amount of exercise that calculates is the coupling that index carries out motion encoded parameter list, to obtain the frame rate value under this amount of exercise.This frame rate value can be that absolute value also can be a relative value.If absolute value.Directly encode,, encode with this new frame rate value if relative value reduces the frame rate value that inquires and obtains new frame rate value on the frame rate value basis of encoding before according to this value.The motion encoded parameter list of inquiry in the step 4, encoding with the coding parameter that obtains comprises to inquire the new coding parameter that obtains after absolute value and relative value the are calculated two kinds of situation of encoding.Momental account form belongs to prior art, repeats no more.Table 2 has provided the example of amount of exercise and frame rate value corresponding relation.Usually, amount of exercise is more little, and the frame rate value of encoding also can be more little.Also can find out this relation from table 2.If the motion value that calculates, explains that the picture motion is bigger greater than preset motion value m, the current processing that is not suitable for falling frame per second, execution in step 5.
Table 2
Step 5, judge that the current frame per second of whether having fallen handles, if, recover normal frame rate, return step 1; If not, execution in step 6.This step is carried out by the code stream control module.
If the current frame per second of having fallen has been handled, explain that the previous cycle when detecting, has started the processing of falling frame per second.And it is current after having carried out amount of exercise calculating; Confirm that current amount of exercise is bigger; Can not encode with less frame per second,, recover normal frame per second coding (normal frame per second is meant the coding frame per second of not carrying out the inventive method and using) so will revise to the frame per second that reduces before.After frame per second is recovered, return step 1 and wait for that again the arrival of sense cycle carries out the processing of code stream control.If the current frame per second of not falling is handled execution in step 5.Certainly, if the quality of the consideration image of exceeding, execution in step 5, the current amount of exercise of step 4 greater than the situation of predetermined movement value m under direct execution in step 6.
If the unnecessary code stream Sredu value of calculating in step 6 step 2 is then inquired about code redundant stream encryption parameter list greater than preset code redundant flow valuve s, obtain coding parameter, encode with the coding parameter that gets access to, return step 1; This code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter; If unnecessary code stream is less than s, execution in step 7." coding parameter to obtain is encoded " in this step carried out by coding module.In addition action is carried out by the code stream control module.
The coding parameter of code redundant stream encryption parameter list record can be GOP or QP, perhaps GOP and QP.Be that GOP and QP describe below with the coding parameter.
If the code stream of current reality is many greatly than preset code stream, then start the mandatory down code check.Preset code redundant flow valuve s starts mandatory down code check whether cut off value, if greater than this value, the words that do not start the mandatory down code check flow storage to subsequent video and will bring bigger pressure, handle so need to start the mandatory down code check.Code redundant stream encryption parameter list has write down the corresponding relation of unnecessary code stream and GOP value and QP value.If unnecessary code stream is many more, the GOP value of encoding needs big more, and the QP value needs big more.With the Sredu that calculates is index coupling code redundant stream encryption parameter list, obtains the GOP value and the QP value of present encoding, encodes with the GOP and the QP value that obtain.The GOP value of said acquisition and QP value can be absolute values, also can be relative values.If absolute value, then current this GOP value that inquires and the QP value directly utilized carried out encoding process; If relative value then increases this relative value that inquires on GOP value of encoding before and QP value.Inquiry code redundant stream encryption parameter list in the step 6, with the coding parameter that gets access to encode comprise above-mentioned to inquire the new coding parameter that obtains after absolute value and relative value the are calculated two kinds of situation of encoding.Table 3 has provided the corresponding relation of code redundant flow valuve and GOP value and QP value.From this table, can find out: unnecessary code stream is many more, and the GOP value of encoding is big more, and the QP value is big more.If unnecessary code stream is less than s, then current influence that code check handles is not fallen and will can be very not big, execution in step 7.
Table 3
Step 7, judge whether to carry out the correction of coding parameter, if, recover normal coding parameter, return step 1; If, do not return step 1.Carry out by the code stream control module in this step.
The coding parameter here is with the coding parameter in the step 6.If the coding parameter in the step 6 is GOP, the coding parameter in that step 7 also is GOP; If the coding parameter in the step 6 is QP, the coding parameter in that step 7 also is QP; If the coding parameter in the step 6 is GOP and QP, the coding parameter in that step 7 also is GOP and QP.Below comprise that with coding parameter GOP and QP describe.
If carried out the correction of GOP value and QP value; Explain that then the code redundant that previous sense cycle detects flows through greatly; Carried out the processing of mandatory down code check; Current period is when detecting, and unnecessary code stream does not occur excessive (the Sredu value is less than preset code redundant flow valuve s), needs to recover normal GOP value and QP value (normal GOP value and QP value are meant GOP value and the QP value of not carrying out the inventive method and using).If the correction of GOP value and QP value was not carried out in current judgement, then return the next sense cycle of step 1 wait and carry out code stream detection and control.Step 7 also is to consider from the picture quality angle, if current detection to total code stream be not excessive, just recover GOP value and QP value.So this step not necessarily, if can be in the unnecessary code stream of step 6 not execution in step 7 and direct execution in step 1 during less than s.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. the method for code stream control, this method is applied to it is characterized in that on the encoding device that this method comprises the steps:
A, judge whether to arrive sense cycle, if arrive, counting on the current time has transmitted the big or small Scur of total actual code stream, calculates the total preset code stream big or small Sdst corresponding with the current time;
B, whether judge unnecessary code stream Sredu greater than 0, Sredu=Scur-Sdst wherein is if not, return steps A; If, execution in step C;
Remaining time is stored in C, calculating; If remaining time, then query time coding parameter table was encoded with the coding parameter that obtains less than preset pre-warning time threshold value t; Return steps A, wherein the corresponding relation of this time encoding parameter list record remaining time and coding parameter; If remaining time is greater than t, execution in step D;
D, the current amount of exercise of calculating; If current motion value is then inquired about motion encoded parameter list less than predetermined movement value m, encode with the coding parameter that obtains; Return steps A, the corresponding relation between this motion encoded parameter list record amount of exercise and the coding parameter; If current amount of exercise is greater than predetermined movement value m, then execution in step E;
If the unnecessary code stream Sredu value of calculating among the E step B is then inquired about code redundant stream encryption parameter list greater than preset code redundant flow valuve s, encode with the coding parameter that obtains, return steps A; This code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter; If unnecessary code stream returns steps A less than s.
2. the method for claim 1 is characterized in that, the coding parameter among the step D is specially the frame per second of coding.
3. method as claimed in claim 2 is characterized in that, if current amount of exercise is greater than predetermined movement value m, then execution in step F among the step D;
F, judge that the current frame per second of whether having fallen handles, if, recover normal frame rate and encode, return steps A; If not, execution in step E.
4. like claim 1 or 3 described methods, it is characterized in that the coding parameter in step C and the step e is picture group GOP and/or quantization parameter QP.
5. method as claimed in claim 4 is characterized in that, if unnecessary code stream is less than s in the step e, and execution in step G then;
G, judge the current correction of GOP value and/or QP value of whether having carried out, if, recover normal GOP value and/or QP value, return steps A; If, do not return steps A.
6. the device of code stream control, this device is applied to it is characterized in that on the encoding device that this device comprises:
Code stream size detection module; Count on the big or small Scur of total actual code stream that the current time transmitted when being used to arrive sense cycle; Calculate the total preset code stream size Sdst corresponding, whether judge unnecessary code stream Sredu greater than 0, wherein Sredu=Scur-Sdst with the current time; Carry out the detection of code stream if not, wait for next sense cycle arrival; If, notification code flow control module actuating code flow control process;
The code stream control module; After being used to receive the notice actuating code current control of detection module, calculating and store remaining time, if remaining time is less than preset pre-warning time threshold value t; Query time coding parameter table then; Obtain the corresponding codes parameter, the notice coding module is encoded with the coding parameter that obtains, wherein the corresponding relation of this time encoding parameter list record remaining time and coding parameter; If remaining time is greater than t; Calculate current amount of exercise; If current motion value is then inquired about motion encoded parameter list less than predetermined movement value m, obtain the corresponding codes parameter; The notice coding module is encoded with the coding parameter that obtains, the corresponding relation between this motion encoded parameter list record amount of exercise and the coding parameter; If current amount of exercise is greater than predetermined movement value m; And unnecessary code stream Sredu value is greater than preset code redundant flow valuve s; Then inquire about code redundant stream encryption parameter list; Obtain the corresponding codes parameter, the notice coding module is encoded with the coding parameter that obtains, and this code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter.
Coding module is used for encoding with the coding parameter that obtains.
7. device as claimed in claim 6 is characterized in that the coding parameter in the motion encoded parameter is specially the frame per second of coding.
8. device as claimed in claim 7 is characterized in that, the code stream control module is used at current amount of exercise greater than predetermined movement value m, judges that the current frame per second of whether having fallen handles, if recover normal frame rate; If not; Continue to carry out greater than preset code redundant flow valuve s in unnecessary code stream Sredu value; Inquiry code redundant stream encryption parameter list; Obtain the corresponding codes parameter, the processing that the notice coding module is encoded with the coding parameter that obtains, this code redundant stream encryption parameter list writes down the corresponding relation of unnecessary code stream and coding parameter;
9. like claim 6 or 8 described devices, it is characterized in that the coding parameter in said time encoding parameter list and the code redundant stream encryption parameter list is picture group GOP and/or quantization parameter QP.
10. device as claimed in claim 9 is characterized in that, the code stream control module if be used for unnecessary code stream less than s, is judged the current correction of GOP value and/or QP value of whether having carried out, if recover normal GOP value and/or QP value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181176.2A CN102724490B (en) | 2012-06-01 | 2012-06-01 | Code stream control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181176.2A CN102724490B (en) | 2012-06-01 | 2012-06-01 | Code stream control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102724490A true CN102724490A (en) | 2012-10-10 |
| CN102724490B CN102724490B (en) | 2014-11-19 |
Family
ID=46950139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210181176.2A Active CN102724490B (en) | 2012-06-01 | 2012-06-01 | Code stream control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102724490B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929654A (en) * | 2013-01-11 | 2014-07-16 | 浙江大华技术股份有限公司 | Image data processing method and device |
| CN104519357A (en) * | 2013-09-26 | 2015-04-15 | 杭州海康威视数字技术股份有限公司 | A video image storage method and apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605253A (en) * | 2009-07-17 | 2009-12-16 | 杭州华三通信技术有限公司 | The control method and the device of video recording storage |
| US20110262052A1 (en) * | 2010-04-27 | 2011-10-27 | Canon Kabushiki Kaisha | Image coding apparatus, control method thereof, and storage medium |
| CN202210841U (en) * | 2011-08-30 | 2012-05-02 | 山东中创软件工程股份有限公司 | Video transmission server |
-
2012
- 2012-06-01 CN CN201210181176.2A patent/CN102724490B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605253A (en) * | 2009-07-17 | 2009-12-16 | 杭州华三通信技术有限公司 | The control method and the device of video recording storage |
| US20110262052A1 (en) * | 2010-04-27 | 2011-10-27 | Canon Kabushiki Kaisha | Image coding apparatus, control method thereof, and storage medium |
| CN202210841U (en) * | 2011-08-30 | 2012-05-02 | 山东中创软件工程股份有限公司 | Video transmission server |
Non-Patent Citations (1)
| Title |
|---|
| 陈利，吕格莉: "流媒体视频存储服务器设计与研究", 《计算机工程与设计》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929654A (en) * | 2013-01-11 | 2014-07-16 | 浙江大华技术股份有限公司 | Image data processing method and device |
| CN103929654B (en) * | 2013-01-11 | 2017-09-12 | 浙江大华技术股份有限公司 | A kind of image processing method and device |
| CN104519357A (en) * | 2013-09-26 | 2015-04-15 | 杭州海康威视数字技术股份有限公司 | A video image storage method and apparatus |
| CN104519357B (en) * | 2013-09-26 | 2018-10-30 | 杭州海康威视数字技术股份有限公司 | A kind of video image storage method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102724490B (en) | 2014-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111107382B (en) | Data flow control method, device and system | |
| US9094663B1 (en) | System and method for providing adaptive media optimization | |
| CA2936217C (en) | Storage management of data streamed from a video source device | |
| US9357210B2 (en) | Systems and methods of encoding multiple video streams for adaptive bitrate streaming | |
| US7720145B2 (en) | Model based bit rate control for a macroblock encoder | |
| JP4203707B2 (en) | A moving picture coding apparatus, a moving picture coding method, and a program using the prior analysis. | |
| EP3562155B1 (en) | Bit rate control method and device | |
| CN102685472B (en) | Method, device and system of data transmission | |
| JP6016332B2 (en) | Image processing apparatus and image processing method | |
| CN102246531A (en) | Multiplexed video streaming | |
| CN104270649A (en) | Image encoding device and image encoding method | |
| KR20150023323A (en) | Systems and methods for the reuse of encoding information in encoding alternative streams of video data | |
| CN112738553A (en) | Self-adaptive cloud rendering system and method based on network communication quality | |
| CN102647586A (en) | Code rate control method and device used in video coding system | |
| CN112351250B (en) | Coding parameter adjustment method, device and equipment and storage medium | |
| CN103595965A (en) | Mobile video monitoring method based on video traffic control | |
| CN101854224B (en) | Error correcting coding method, device and system, and forwarding control method and device | |
| MX2013004678A (en) | Video image encoding device, video image encoding method, video image decoding device, and video image decoding metho. | |
| CN102724490A (en) | Code stream control method and device | |
| CN102870416A (en) | Ideo encoding device and video decoding device | |
| CN104125460A (en) | Method and apparatus for controlling video bitrates | |
| CN205647835U (en) | Video transcoding system under cloud environment | |
| RU2005112462A (en) | READING MANY FLOWS | |
| CN102457695A (en) | Digital video recorder and frame extraction and backup method for same | |
| CN104519357A (en) | A video image storage method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Pengguo Inventor after: Wang Hui Inventor before: Wang Hui |
|
| CB03 | Change of inventor or designer information |