public static CleanApertureExtension createCleanApertureExtension(int apertureWidthN, int apertureWidthD, int apertureHeightN, int apertureHeightD, int horizOffN, int horizOffD, int vertOffN, int vertOffD) { CleanApertureExtension clap = new CleanApertureExtension(new Header(fourcc())); clap.apertureWidthNumerator = apertureWidthN; clap.apertureWidthDenominator = apertureWidthD; clap.apertureHeightNumerator = apertureHeightN; clap.apertureHeightDenominator = apertureHeightD; clap.horizOffsetNumerator = horizOffN; clap.horizOffsetDenominator = horizOffD; clap.vertOffsetNumerator = vertOffN; clap.vertOffsetDenominator = vertOffD; return clap; }