Image encoding device and image encoding method

Abstract

In encoded moving picture data, frame information inherent to a frame such as scene change information is added to an accurate position. An encoding processor (1) compresses / encodes the input moving picture data and a first counter (2) counts the number of pictures generated by the encoding processor (1). A frame information holder (4) holds frame information indicating information inherent to the frames in the input moving picture data by relating it to the count value obtained by the first counter (2). A header information insertion section (6) inserts predetermined header information into a picture generated by the encoding processor (1) and a second counter (7) counts the number of pictures received by the header information insertion section (6). When header information is inserted, the header information insertion section (6) references the frame information holder (4) and writes frame information corresponding to a picture when the count values of the first counter (2) and the second counter (7) coincide into header information corresponding to starting data of the picture.

Description

technical field [0001] The present invention relates to an image encoding device and an image encoding method for encoding a moving image, and in particular to an image encoding device and an image encoding capable of adding frame-specific information such as information indicating scene change information to encoded data. method. Background technique [0002] In recent years, generally, a compression encoding method such as MPEG (Motion Picture Experts Group) is used to process moving images as digital data. Such moving image data is recorded on various recording media, or transmitted and received over a network, and used. In addition, scene change information indicating the start of image recording and scene transition is added to moving image data. For example, when playing video data, the scene change information is used for retrieval at the time of scene transition, generation of a rough image at that time, and the like. [0003] As a conventional image recording dev...

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Problems solved by technology

[0007] However, since the variable length coding method is adopted in the MPEG method, the data amount of the video stream per unit time is often not fixed, and the timing of the multiplexing processing in the multiplexing unit is not fixed for each frame. time interval

Therefore, in the above-mentioned method, the time required from the detection of the scene change to the writing of the scene change information varies irregularly, and it is difficult to include the head of the packet containing the start data of the target frame where the scene change has occurred. Correctly write scene change information

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