Memory scheduling method for digital audio and video decoding equipment
A technology for audio and video decoding and memory scheduling, applied in the computer field, can solve problems such as low operating efficiency and memory shortage, and achieve the effects of rapid response, lower release rate, and high efficiency
Active Publication Date: 2020-09-01
HANGZHOU NATCHIP SCI & TECH
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Problems solved by technology
The number of various language symbols required in the operation of the entire digital TV set-top box is very large. The same principle as pictures, all loading will cause memory shortage; real-time analysis, for embedded systems such as digital TV set-top boxes, the file system Mainly on the flash, for frequent reading of flash, the overall operating efficiency will be very low
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[0020] specific implementation plan
[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] A memory scheduling method for a digital audio and video decoding device. The memory pool of the digital audio and video decoding device includes a released memory pool and an applied memory pool. The released memory pool is the memory pool available for application. The applied memory pool is the occupied memory pool, and part of the applied memory pool is marked as the memory pool to be released, and the other part is the part in use. The method includes an application process and a release process.
[0023] Such as figure 1 As shown, each time an application applies for a memory block from the system, it applies for additional bytes on the basis of the memory block that needs to be applied. The additional bytes are used as the storage space for the three scheduling variables of the me...
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The invention discloses a memory scheduling method for digital audio and video decoding equipment. The memory scheduling method of the existing digital audio and video decoding equipment causes very low overall operation efficiency. According to the method, one part of the applied memory pool is marked as the to-be-released memory pool, and the other parts of the applied memory pool are used parts. When an application applies for a memory block from a system each time, a plurality of bytes are additionally applied to serve as storage spaces of three scheduling variables including a to-be-released mark F, a referenced mark R and a utilization rate H; the memory is preferentially obtained from the applied pool to be released, and the data in the pool to be released is not formally released by the system, so the frequent application release rate can be reduced, and the data content does not need to be analyzed again, and the data in the memory can be effectively utilized. According to themethod, the memory block which is relatively low in recent utilization rate and large in size is officially released preferentially, so the high efficiency of memory application can be guaranteed, and quick response of the whole interface and audio and video playing response can also be guaranteed.
Description
technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a memory scheduling method for digital audio and video decoding equipment. Background technique [0002] At present, the development of digital audio and video decoding equipment tends to be high-definition and Internet TV (IPTV), and the demand for audio and video memory is on the rise. On the other hand, from the perspective of interface memory requirements and product cost, digital audio and video has further increased demand for frame memory, but the memory left for the interface is very limited. Therefore, a set of efficient memory allocation methods suitable for digital audio and video decoding equipment (such as digital TV set-top boxes) is very important in the field of digital TV set-top boxes. [0003] On the graphical interface (GUI), some interfaces have a very high demand for pictures, especially for Internet TV (IPTV) set-top boxes, there will be a la...
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IPC IPC(8): H04N21/426H04N21/443G06F9/50
CPCG06F9/5016G06F9/5022H04N21/426H04N21/4435
Inventor 沈丛则刘非刘峰张令
Owner HANGZHOU NATCHIP SCI & TECH