| 摘要 |
FIELD: physics, computer engineering.SUBSTANCE: invention relates to computer engineering. Video encoding control method, wherein a generated bit rate is controlled such that a hypothetical buffer in a decoder does not collapse and an input video signal is encoded, and also includes sequentially encoding each image in an encoding-order image group according to a predetermined encoding parameter; checking if underflow has occurred in the hypothetical buffer based on bit rate information generated when encoding of each image; and when the underflow has occurred in the hypothetical buffer, changing he encoding parameter in such a manner that a generated bit rate resulting from encoding is reduced and re-encoding the encoding-order image group that is being encoded from its first image using the changed encoding parameter, wherein re-encoding includes incrementing the retry count when the underflow has occurred in the hypothetical buffer and changing the encoding parameter into an encoding parameter with which the generated bit rate resulting from encoding is reduced as a value of the retry count increases.EFFECT: suppressing underflow of a hypothetical buffer.19 cl, 24 dwg |
