摘要:
An information processing apparatus that decodes a coded stream includes a memory storing the coded stream, a decoder generating image data by decoding the coded stream stored in the memory, a memory-transfer controller controlling transfer so that the coded stream is transferred to the memory prior to timing for outputting the image data, and a decoding controller controlling decoding by the decoder so that, in the coded stream stored in the memory, a reference picture that is referred to in picture decoding is preferentially decoded.
摘要:
An information processing apparatus that decodes a coded stream includes a memory storing the coded stream, a decoder generating image data by decoding the coded stream stored in the memory, a memory-transfer controller controlling transfer so that the coded stream is transferred to the memory prior to timing for outputting the image data, and a decoding controller controlling decoding by the decoder so that, in the coded stream stored in the memory, a reference picture that is referred to in picture decoding is preferentially decoded.
摘要:
An information processing apparatus controls first and second coded streams to be output in a form in which the first and second coded streams are connected to each other. The apparatus includes an operation-input acquiring unit for acquiring an operation input representing a playback portion of both coded streams to be played back, a storage unit for storing coded streams including both coded streams, a transfer-control unit for controlling transfer, to the storage unit, of portions of both coded streams for the operation input acquired by the operation-input acquiring unit, a coded stream necessary for decoding the portions of both coded streams for the acquired operation input, a decoding unit for decoding both coded streams stored in the storage unit to generate image data, and a commanding unit for commanding an image-data output time at which the image data generated by the decoding unit is output.
摘要:
An information processing apparatus that decodes a plurality of coded streams includes a decoder configured to decode the plurality of coded streams and a control unit configured to control the decoding of the plurality of coded streams so that the start of decoding a subject frame among frames forming the plurality of coded streams is delayed by an amount equal to a delay time, which is the longest pre-processing time among pre-processing times necessary for starting decoding the frames after an instruction to decode the subject frame is given.
摘要:
An information processing apparatus for decoding compression-coded video data, including: at least one decoder that decodes the compression-coded video data; and a controller than controls processing executed by the decoder, wherein the controller, when a picture at a head of a decoding processing unit is an I-picture or a P-picture among decoded pictures output from the decoder, controls the decoder so that a decode start timing at which the decoder starts decoding and a display output timing at which the decoder starts outputting the decoded pictures are displaced from each other by a first predetermined number of pictures.
摘要:
A reproduction apparatus successively decoding and reproducing a plurality of picture data forming reproduced data, comprising a reproduction memory, a decoder decoding the picture data, writing the decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, and a processing circuit for performing decoding scheduling for determining an order of making the decoder decode picture data belonging to a group of picture data in units of groups of picture data comprised of a predetermined plurality of the picture data, generating scheduling result data including decoding order data indicating the determined order and validity data indicating validity of the picture data, selecting the picture data to be processed in the order determined by the decoding scheduling based on the scheduling result data, and, conditional on the selected picture data being valid, making the decoder decode and reproduce and output the picture data and, when receiving a reproduction rate change command, updating the validity data of the scheduling result data in accordance with the changed reproduction rate.
摘要:
A reproduction apparatus for successively decoding and reproducing a plurality of picture data, comprising a reproduction memory and a decoder for successively decoding the plurality of picture data in an order in accordance with a designated reproduction direction, writing the decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, the decoder holding the storage of the decoding results in the reproduction memory even after the decoding results stored in the reproduction memory are no longer used when continuing reproduction in the designated reproduction direction and, when receiving as input a reversal command of the reproduction direction, performing the reproduction and output using the decoding results already stored in the reproduction memory before the input of the reversal command.
摘要:
A data processing system comprising a computer outputting to a reproduction apparatus data required for reproduction of a reproduction point in the reproduced data when receiving as input a first command designating a reproduction point of reproduced data and outputting to the reproduction apparatus a reproduction start command of the reproduction point when receiving as input a second command indicating the start of reproduction of the reproduction point designated by the first command after receiving as input the first command and a reproduction apparatus decoding data of the reproduction point based on the data input from the computer, storing the decoding result in a reproduction memory, and, when receiving as input the reproduction start command from the computer, reading, reproducing, and outputting the decoding results of the reproduction point from the reproduction memory.
摘要:
A data processing apparatus outputting picture data to a reproduction apparatus reproducing a plurality of picture data in an order in accordance with a designated reproduction direction, the unit having a processing circuit outputting to the reproduction apparatus the picture data in an order in accordance with a reproduction direction designated in the reproduction apparatus and writing it into an input memory in the reproduction apparatus and, when reversing the reproduction direction designated at the reproduction apparatus, outputting the picture data to the reproduction apparatus conditional on the picture data to be used next in reproduction by the reproduction direction after reversal not being stored in the input memory.
摘要:
An information processing apparatus decodes compression-coded video data including I-pictures, P-pictures, and B-pictures. The information processing apparatus includes at least one decoder decoding the compression-coded video data, a supply controller controlling the supply of the compression-coded video data to the decoder, and a controller controlling processing executed by the supply controller and the decoder. The decoder includes a bank memory for storing decoded picture data, and the controller controls the timing at which a picture stored in the bank memory is released by changing the value of a first counter indicating a number of times for which the picture stored in the bank memory is referred to when a P-picture or a B-picture is decoded by the decoder.