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Decoding apparatus, decoding method, and editing apparatus

An editing and independent decoding technology, applied in the field of decoding and processing of encoded data, can solve problems such as low processing efficiency and achieve the effect of improving processing speed

Active Publication Date: 2012-05-16
INTERDIGITAL VC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since memory is basically not shared between processes, processing efficiency in multiple processes is inefficient when performing processing that requires access to data on the same memory

Method used

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  • Decoding apparatus, decoding method, and editing apparatus
  • Decoding apparatus, decoding method, and editing apparatus
  • Decoding apparatus, decoding method, and editing apparatus

Examples

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no. 1 example }

[0052] The first embodiment of the present invention is an example of a decoding device and a decoding method for decoding encoded image data. In the following specific example, description will be made assuming that the decoding apparatus and decoding method according to the first embodiment perform decoding processing of encoded image data in accordance with MPEG-2.

[0053] figure 1 is a block diagram illustrating the configuration of the decoding apparatus according to the first embodiment of the present invention.

[0054] refer to figure 1 , the decoding apparatus 10 includes a plurality of CPUs 20 and 21 that perform decoding processing, a RAM 22 that stores encoded image data, a ROM 23 that stores programs executed by the CPUs 20 and 21, and a system that connects the CPUs 20 and 21, the RAM 22, and the ROM 23 to each other. Bus 24.

[0055] The CPUs 20 and 21 load the programs recorded in the ROM 23 into the RAM 22, and execute decoding processing. Although each o...

no. 2 example }

[0295] The second embodiment of the present invention is an example of an editing device and an editing method of decoding coded image data.

[0296] Figure 24 is a block diagram illustrating a hardware configuration of an editing apparatus according to a second embodiment of the present invention. It should be noted that the same reference numerals are assigned to components common to the first embodiment, and their descriptions are omitted.

[0297] refer to Figure 24 , the editing device 100 includes a driver 101 for driving an optical disc or other recording media, a CPU 20, a CPU 21, a CPU 102, a ROM 23, a ROM 103, a RAM 22, a RAM 104, a HDD 105, a communication interface 106, an input interface 107, an output interface 108, A video / audio interface 114, and a bus connecting them.

[0298] The editing apparatus 100 has the same as that shown in the front according to the first embodiment figure 1 The CPU 20, CPU 21, RAM 22, and ROM 23 are configured with the same dec...

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Abstract

There is disclosed an apparatus (10, 30) including: a source (22) for providing encoded data of image data or audio data, the encoded data including a plurality of pieces of element data being able to be decoded independently, each of the plurality of pieces of element data including at least one block; first processing means (31) for generating block information identifying a first block to be processed first among the at least one block; a plurality of second processing means (32a, 32b) for generating block information identifying a subsequent block to the first block based on an order of decoding processing in element data corresponding to the block information; a plurality of decoding means (33a, 33b) for decoding, in parallel, a block identified by referring to one piece of unreferenced block information among the generated block information; and storing means (22) for storing the decoded block and forming decoded element data corresponding to the block. An editing apparatus including such an apparatus is also disclosed.

Description

technical field [0001] The present invention relates to a decoding device and a decoding method of encoded data, and more particularly to a decoding process of encoded data in which a plurality of processors run in parallel. Background technique [0002] Processes and threads exist as processing units when the CPU executes programs. Multiple processes can run in parallel by using the multitasking capabilities of the operating system. This is known as multiprocessing where multiple processes run in parallel for processing. However, since memory is basically not shared between processes, processing efficiency is low in multiple processes when processing that requires access to data on the same memory is performed. [0003] Instead, a program can spawn multiple threads and have each thread run in parallel. This is known as multithreading where multiple threads run in parallel for processing. When performing processing that requires access to data on the same memory, the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/50
CPCH04N19/00781H04N19/00278H04N19/00521H04N19/00533H04N7/26244H04N7/26755H04N7/26335H04N7/50H04N19/176H04N19/44H04N19/436H04N19/127H04N19/136H04N19/174H04N19/10H04N19/00
Inventor 高田庸介松崎知式
Owner INTERDIGITAL VC HLDG INC
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