打开桌面pr,按照之前介绍的方法点击新建项目。进入项目后，首先在页面左下方的元素材板块完成导入媒体文件的操作，我们在电脑文件夹中找到需要编辑的视频然后直接拖动导入或者双击选定导入。
Open the desktop pr and click New Project as described earlier. After entering the project, first complete the operation of importing media files in the meta material section at the bottom left of the page. We find the video to be edited in the computer folder and then drag and import directly or double-click to select the import.
接着，在处理素材剪辑视频之前我们必须得创建序列，因为序列大小直接决定了输出视频的尺寸大小，如果不进行创建那么在编辑页面右下角显示的是无序列，此时我们是无法对视频进行再创作的。那么在这里我们介绍五种创建方法：第一种菜单栏——文件——新建序列；第二种利用快捷键，同时摁住键盘ctrl和N键；第三种直接在左下角的元素材项目面板空白处，点击鼠标右键选择新建项目——选择序列；第四种，同样是在元素材项目面板版块点击右下角的一个折纸图标选择序列。第五种，直接将素材拖拽到时间线上，但这种方法序列的尺寸会按照导入的素材尺寸的大小进行自动匹配，无论我们怎么去改变素材尺寸，他都只会输出原始的值，所以这种方法不太推荐。
Next, before processing the clip video, we must create a sequence, because the size of the sequence directly determines the size of the output video. If it is not created, no sequence will be displayed in the lower right corner of the editing page. At this time, we cannot edit the video. recreated. So here we introduce five creation methods: the first menu bar - file - new sequence; the second use shortcut keys, while pressing the keyboard ctrl and N keys; the third directly in the lower left corner of the meta material item In the blank space of the panel, click the right mouse button to select New Project - Select Sequence; the fifth type is also to click an origami icon in the lower right corner of the Meta Material Items panel to select the sequence. Fifth, drag the material directly to the timeline, but in this method, the size of the sequence will be automatically matched according to the size of the imported material. No matter how we change the size of the material, it will only output the original value. So this method is not recommended.
PART 002
参数设定
创建序列之后，在序列面板会有一系列英文分类，他们主要是针对摄像机来对序列进行设置的，对于我们来说意义不大。我们直接选择HDV 720p25或者HDV 1080p25.对应的视频长款比例满足16：9应当是1080p——1920*1080；720p——1280*720，帧速率均为25帧每秒。当遇到系统设置的长宽大小不符合要求时就会引起“像素变形”，此时就需要我们在序列面板中的设置中进行自定义进行一些参数的更改。以1080p为例，我们更改像素长宽比为方形像素，帧大小改为1920，水平1080，此时垂直比为16：9.注意：如果不选择像素长宽比为方形，垂直比会随着输入帧大小和水平两个数值的改变而改变。最后点击保存序列，完善序列名称即可。
After the sequence is created, there will be a series of English categories in the sequence panel. They are mainly for the camera to set the sequence, which is of little significance to us. We directly choose HDV 720p25 or HDV 1080p25. The corresponding long video ratio of 16:9 should be 1080p-1920*1080; 720p-1280*720, and the frame rate is 25 frames per second. When the length and width of the system settings do not meet the requirements, it will cause "pixel deformation". At this time, we need to customize the settings in the sequence panel to change some parameters. Taking 1080p as an example, we change the pixel aspect ratio to square pixels, the frame size to 1920, and the horizontal 1080. At this time, the vertical ratio is 16:9. Note: If the pixel aspect ratio is not selected to be square, the vertical ratio will change with Enter the frame size and the level to change the two values. Finally, click Save Sequence and complete the sequence name.
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