Abstract:
A video decoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video decoding device performs a common decoding process without depending on a moving image format regarding encoding on picture data. A video decoding device performs display control corresponding to a format of the both video by analyzing display control information in display control information analyzer. The display control information includes sequence unit display control information and picture unit display control information, the sequence unit display control information being commonly used in a display process of all pictures that belong to a sequence to be decoded and the picture unit display control information being individually used in a display process of a picture to be decoded. A second code string analyzer acquires each of the sequence unit display control information and the picture unit display control information from an extended information area in units of pictures.
Abstract:
A video image encoding device 100, in a first mode, variable-length-codes a residual coefficient to generate a coefficient code string, outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string, in a second mode, directly uses a differential image as a coefficient code string without variable-length-coding the differential image, and outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string.
Abstract:
A video image decoding device receives, as the code string to be decoded, a first code string to be decoded including information based on an encoded residual coefficient and header information associated with the information or a second code string to be decoded including a residual image obtained in an encoding process step of the code string to be decoded and header information associated with the residual image. The video image decoding device, when the code string to be decoded that is received by the receiver is the first code string to be decoded, adds the residual decoded image and the predictive image generated by the predictive encoder to each other to generate and output a reconstructed image and, when the code string to be decoded received by the receiver is the second code string to be decoded, adds a residual image included in the second code string to be decoded and the predictive image to each other to generate and output a reconstructed image.
Abstract:
A video encoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video encoding device performs a common encoding process without depending on a video format regarding encoding on picture data. A video encoding device generates code string corresponding to a format of the both video by generating display control information corresponding to a format of the video and describing the display control information in the code string in display control information generator. The display control information includes sequence unit display control information and picture unit display control information, the sequence unit display control information being commonly used in a display process of all pictures that belong to a sequence to be decoded and the picture unit display control information being individually used in a display process of a picture to be decoded. A second code string generator stores each of the sequence unit display control information and the picture unit display control information in an extended information area generated in units of pictures.