Abstract: When a quantized DCT coefficient and a quantization parameter are input from an entropy decoder, a controller outputs them to a switch and gives a load detector an instruction to detect system load. The load detector requests system load information from OS. If the system load is light, the load detector controls the switch to execute first inverse quantization of general load by a general processor and obtain a DCT coefficient. If the system load is heavy, the load detector controls the switch to execute second inverse quantization whose processing load is lighter than the first inverse quantization by a specific processor and obtain a DCT coefficient.

Abstract: According to one embodiment, an information processing apparatus which decodes a compression encoded moving image stream, includes a filter processing unit which executes a deblocking filter process in order to reduce block distortion for each decoded picture, a detection unit which detects a load state of the information processing apparatus, and a control unit which causes the filter processing unit to execute the deblocking filter process without a process for a color difference signal in accordance with the load state detected by the detection unit.

Abstract: A video reproduction application program monitors whether or not blend processing for superimposing one of two images on the other is executed, and executes all decode processings (normal decode processings), when the blend processing is not executed. On the other hand, when the blend processing is executed, a specific processing is executed in which decoding of a color component is omitted from decode processing for decoding the images to be subjected to the blend processing. As a result, the load on the system is reduced.

Abstract: According to one embodiment, an information processing apparatus having a decoder to decode encoded streaming data to be displayed to form a picture including a plurality of blocks comprises a filtering unit for filtering the decoded streaming data to reduce distortion of the block with respect to each picture, a detecting unit for detecting a size of the picture to be displayed, and a simplifying unit for simplifying the filtering by the filtering unit in response to the size of the picture detected by the detecting unit.

Abstract: According to one embodiment, there is provided an information processing apparatus, including a decoding unit which decodes a moving image stream that is compressed and coded, a deblocking filtering unit which performs a deblocking filtering process for a picture included in the moving image stream to reduce a block distortion, a blending unit which performs a blending process of superimposing a second picture on a first picture with designated transparency, and a control unit which determines whether the blending process is performed for the picture included in the moving image stream and, when the blending process is performed, varies an amount of processing of the deblocking filtering process for at least one of the first and second pictures in accordance with the transparency.

Abstract: According to one embodiment, there is provided an information processing apparatus including a decoding unit which decodes a moving image stream that is compressed and coded, a processing unit which performs a deblocking filtering process for a picture included in the moving image stream to reduce a block distortion, and a control unit which varies an amount of processing of the deblocking filtering process in accordance with a given condition.

Abstract: An information processing apparatus includes a unit that executes a de-blocking filter process for each of decoded pictures, a unit that executes a motion compensation prediction process that generates an inter-frame prediction signal, from one or more pictures that are subjected to the de-blocking filter process, a unit that executes an intra-frame prediction process that generates an intra-frame prediction signal, a unit that adds one of the inter-frame prediction signal and the intra-frame prediction signal to a prediction error signal corresponding to the to-be-decoded picture to decode the to-be-decoded picture, and a unit that executes, when a load on the information processing apparatus is greater than a predetermined reference value, a process that skips execution of the de-blocking filter process and generates the inter-frame prediction signal, which corresponds to the to-be-decoded picture, from the one or more decoded pictures that are not subjected to the de-blocking filter process.