在2020年的Premiere Pro中， - [Instructor] In Premiere Pro 2020,
软件的14.0版本， version 14.0 of the software,
在这个平台上添加了一个主要的功能， there was one major feature that was added to the platform,
这就是自动重构。 which is Auto Reframe.
这个版本的其他升级 Other upgrades in this version
更多的是底层的增强 were more under-the-hood enhancements
或者设置在上下文之外的升级 or settings upgrades that fall outside the context
在这个重要的训练中。 of this essential training.
但是自动重构是一个很酷的功能。 But Auto Reframe is a pretty cool feature.
现在让我们来探索一下。 So let's explore that now.
再说一遍，请不要看这个视频， And again, please don't watch this video,
如果你是初次登台的新人， If you're brand new to premiere,
新内容只会让你更有经验 what's new content is only for more experienced
premiere编辑。 premiere editors.
那么什么是自动重构呢？ So what is Auto Reframe?
自动重构可以让你自动改变 Auto Reframe allows you to automatically change
你的程序的纵横比， the aspect ratio of your program,
这样你就可以迎合你的目标受众 so that you can cater to your target audiences
观察习惯。 viewing habits.
这让你可以很容易地转换16:9的视频 This allows you to easily convert your 16:9 video
用于社交媒体的垂直或方形视频。 to vertical or square video for social media.
最好的部分是自动重构智能感觉 And the best part is Auto Reframe intelligently senses
框架中的主要动作。 the main action in the frame.
它分析每一个镜头 It analyzes each shot
然后把新的视频帧 and situate the new video frame
在最重要的行动领域， over the most important areas of action,
甚至是关键帧随着时间的推移。 and even key frames the action over time.
让我们看一看。 Let's take a look.
在这个演示中， - [Tutor] In this demo,
我将在第13.1章中使用我的序列， I'm going to use my sequence in my chapter 13.1 been,
因为这是我在课程中探索自动重构的地方。 since that's where I explore Auto Reframe within the course.
所以即使技术上没有 And so even though there's technically not
为新内容提供的任何练习文件， any exercise files provided for what's new content,
如果你愿意，可以随时随到。 feel free to follow along there if you want.
你应该使用自动重构作为一个修整工具 You should use Auto Reframe as a finishing tool
在项目的最后。 at the end of your project.
假设我有最后一个序列， So let's say that I have my final sequence here,
和大多数视频项目一样，它的比例是16:9， and it's 16:9 aspect ratio as most video projects are,
我将把它设置为自动重构， and I'm going to set it up for Auto Reframe,
通过按顺序排列 either by coming up to sequence
选择自动重组序列， and choosing Auto Reframe sequence,
或者你可以在你的项目面板上选择它， or you can select it right here on your Project panel,
右键单击并选择自动重新构造序列。 right click and choose Auto Reframe sequence.
自动重新构造序列对话框弹出。 The Auto Reframe sequence dialog box pops up.
如果你愿意，可以重命名它。 And here you can rename it if you want.
这是你选择新宽比的地方 And then here is where you choose the new aspect ratio
你想要改变它。 that you want to change it to.
有一些预设 There are some presets
如果你想的话，你也可以自己创造。 and then you can also create your own if you want.
我想要平方的视频，所以我要选择方块1:1。 I want square video so I'm going to choose square 1:1.
你也可以应用一个运动预设。 You can also apply a motion preset.
这告诉premiere在你的影片中有多少动作 This tells premiere how much motion is in your footage
所以它知道如何关键帧的效果。 so it knows how to key frame the effect.
慢动作是很好的如果摄像机的运动很少 Slower motion is good if there is very little camera motion
就像一个基本的谈话头面试。 like a basic talking head interview.
这导致了非常少的关键帧。 This results in very few key frames.
你应该为大多数内容选择默认值， You should pick default for most content,
它很好地完成了这个动作， it does a good job of following the action,
但它可能会失去快速移动的物体的轨迹。 but it can lose track of fast moving objects.
然后是更快的运动。 And then there's faster motion.
当有很多运动时，这是最好的 And this is best when there's a lot of motion
在你的视频中， in your footage,
你需要从射击到射击。 and you need to follow the action from shot to shot.
比如篮球比赛就是一个例子 So something like a basketball game would be an example
这将是一个很好的选择。 of when this would be a good option.
当然，有些项目的混合速度更快 Of course, some projects contain a mix of faster
慢动作， and slower motion,
所以你需要运用你的判断力 so you'll need to use your judgment
大部分的镜头都是这样的。 for what most of the footage is.
我将选择默认值。 I'll choose default.
你也应该选择是否要嵌套序列 You should also pick whether you want to nest the sequence
或者不是。 or not.
它在这里解释得很好。 And it explains this pretty well here.
如果你不筑巢， If you don't nest,
那么这个关键帧的任何现有运动 then any existing motion of that key frames
你的视频片段将被移除。 that you have on your clips will be removed.
如果你做了nest你就可以保持你的运动关键帧 If you do nest then you get to keep your motion key frames
但是你失去了你的转变。 but you lose your transitions.
这是根据你所知道的情况来考虑的 So this is something to consider based on what you know
关于你的源序列。 about your source sequence.
如果你有很多原始的运动键框架， If you have a lot of Original Motion key framing,
你可能会选择嵌套你的剪辑。 you'll probably choose to nest your clips.
对我来说，我选择不去筑巢， For me I'm going to choose not to nest,
我没有太多的运动关键帧 I don't have a whole lot of motion key frames
已经应用了。 already applied.
这样就可以了。 So it will be okay.
所以我写入create。 So I'll say create.
好吧？ All right?
你可以看到一个新的序列被创建。 And you can see that a new sequence was created.
我有一个新的纵横比， And I have a new aspect ratio,
一个新的方宽比， a new square aspect ratio,
它有这个分析横幅。 and it has this analyzing banner.
这是自动重构效果， This is the Auto Reframe effect,
分析我序列中的每一帧视频， analyzing every frame of video in my sequence,
并执行我刚才谈到的那个智能的重新架构。 and performing that intelligent reframe that I talked about.
当分析发生时，您可以继续工作。 As the analysis happens, you can continue working.
现在我想向你们展示在引擎盖下发生了什么。 Now I want to show you what's happened under the hood.
在每一段视频中， On every clip,
自动重构效果已被应用。 the Auto Reframe effect has been applied.
如果我选择这个剪辑 So if I select the clip
然后开始实施控制， and come up to Effect Controls,
它来到下面这里， and it come down to the bottom here,
你可以看到这是我的自动重构效果。 you can see that here's my Auto Reframe effect.
然而，大部分的结果 However, most of the resulting action
在你的运动参数中。 is up in your motion parameters.
好的，在你的运动效果中， Okay, so in your built in motion effects,
你可以看到一些关键帧已经被应用， you can see that a couple of key frames have been applied,
在这个剪辑中重新定位了主要的动作。 which have reposition the main action within this clip.
如果需要的话，你可以编辑这些关键帧。 You can edit these key frames of course if you need to.
一旦分析完成， And once the analysis is done,
你需要通过你的序列来确保 you need to go through your sequence to make sure
每一段视频都做得很好。 that it did a good job on every clip.
所以看（背景噪音） So see (background noises)
我分析的barner已经走了， My analyzing barner is gone,
所以它就完成了。 so it is finished.
我将在这里进行讲解 And I'm just going to go through here
看看它是怎么做的。 and see how it did.
（背景噪音） (background noises)
到目前为止，一切都很好。 Alright, so far, so good.
事实上，这个很好。 In fact, this one's very good.
我要选择这个剪辑 I'm just going to select this clip
然后按F键匹配一个匹配帧。 and press F for a match frame.
你可以看到这个原始的照片是什么样的。 And you can see what this original shot was like.
好了，摄像机锁定了， Okay, so the cameras locked down,
然后这个主题走了。 and the subject walks across.
但是看看自动重构会对什么产生影响。 But take a look at what the Auto Reframe affected.
旁白：在爱尔兰的韦斯特沃特。 - [Narrator] Been in Westwater fort Ireland.
在那段时间里，你经历了两次世界大战， You've had two world wars in that time,
我们经历了一场内战。 and we've had a civil war.
-家庭教师，如果我去实施控制， - [Tutor] Okay, and if I go to Effect Controls,
您可以看到，这里是生成的关键帧。 you can see that here are the resulting key frames.
我不打算讲整个过程， I'm not going to go through the whole thing,
但是我们看看能不能找到一个坐标系 but let's see if we can find a frame
这需要一点修正。 that needs a little fixing.
（背景噪音） (background noises)
啊哈， Aha here,
我要做一个匹配的坐标系f。 I'm going to do a match frame F.
你可以看到我们的主要动作在这里。 And you can see that our main action is actually over here.
我们来解决这个问题。 So let's fix that.
我要选择效果控制 I'm going to just select effect controls
我要把所有这些关键帧都吹掉。 And I'm going to blow away all these key frames.
我可以从效果控制面板来做这个 And I can either do this from the Effect Controls panel
所以我可以把我的位置放过去。 so I can bring my position over like so.
或者你也可以双击这里 Or you can also just double click right here
在你的项目小组中， in your Project panel,
然后像这样移动。 and move over like so.
好的，还有（背景噪音） Okay, and (background noise)
总的来说， in general, though,
我认为这是一项很好的工作 I think it's done a really nice job of including
跟踪我的主要行动。 and tracking my main action.
（背景噪音） (background noise)
还有最后一件事。 Also, just one last thing.
我想指出的是，因为我们的关键帧 I want to point out that because our key frames
已经被注入到我们的运动参数中， have been injected into our motion parameters,
具体位置。 specifically position.
如果我回到自动重组的效果， If I come down to the Auto Reframe effect,
注意，效果图标是灰色的。 notice that the effects icon is grayed out.
所以你不能打开或关闭它 So you can't turn that on and off
就像你能做的一样。 like you can most effects.
然而，这里有一个分析按钮。 However there is this analyze button.
所以如果你需要把关键帧吹走 So if you need to blow away the key frames
再分析一下你能拍的照片。 and re analyze the shot you can.
所以实际上，让我们回到这里的镜头 So actually, let's go back to the shot right here
我们修好了。 that we fixed.
我要把关键帧去掉 I'm just going to take away the key frames
我手动应用， that I manually applied,
让我们来分析一下这张照片 and let's re analyze the shot
看看它是否能在那里找到Joe and see if it picks up on Joe over there
搭起帐篷。 putting up the tent.
我来分析一下。 I'll analyze.
好吧？ All right?
你可以看到它找到了（咕哝）， And you can see that it found (mumbles),
它适当地重新构造了框架。 it reframed the frame appropriately.
这是我的新关键帧。 And here are my new key frames.
（背景噪音） (background noise)
好的，有时是有针对性的分析 Alright, so sometimes a targeted analysis
会做得更好一些 will do a little bit better job
比全面分析更重要。 than a blanket analysis.
-教练，好的，这就是自动重组效果。 - [Instructor] Alright, so that's the Auto Reframe effect.
这绝对是一个有用的工具， Definitely a useful tool,
特别是在当今世界很多不同的方面 especially in today's world of many different aspect ratios
对于许多不同的平台。 for many different platforms.