20.8 REAPER视频设置和首选项——REAPER用户手册中文版

琴韵晓波

楼主 琴韵晓波说：
20.8 REAPER Video Settings and Preferences
20.8 REAPER视频设置和首选项

Pressing Alt Enter displays the project settings dialog. Select the Video tab.
按Alt+回车键显示工程设置对话框。选择视频选项卡。
You can select a frame rate from the drop down list, or type in your own value.
您可以从下拉列表中选择“帧率”,或键入您自己的值。
Optionally, you may enter a preferred video size if you wish. If this is left blank, the video will try to size to the active media being played. If your project has videos all recorded at the same dimensions, setting this is unnecessary. If you have various videos at different resolutions, it can be advantageous to specify a size here. If you provide only a width or a height, it will adjust the other value to put things at a default 16:9 ratio.
如果愿意,您可以输入“首选视频的大小”。如果将此选项留空,视频将尝试调整大小,以适应正在播放的活跃媒体。如果您的工程包含所有以相同尺寸录制的视频,则不需要设置此设置。如果您有不同分辨率的各种视频,请在此处指定大小。如果您只提供宽度或高度,它会调整另一个值,以默认的16:9的比例来放置。
Video item visibility determines the order in which video items are processed. Items in lower numbered tracks replace higher is consistent with the approach taken by most video editing programs, but you can select Items in higher numbered tracks replace lower if you wish.
“视频对象可见性”确定处理视频对象的顺序。“较低编号轨道上的对象替换较高的”,与大多数视频编辑程序采取的方法一致,但如果您愿意,也可以选择“较高编号轨道上的对象替换较低的”。
Options for video colorspace are auto, 1420/YV12, YUY2 or RGB. Both YUY2 and 1420/YV12 store data more efficiently than RGB and offer an almost lossless form of file compression (but see comments below).
“视频色度空间”可以选择的有“自动”、“I420/YV12”、“YUY2”或“RGB”。“YUY2”和“I420/YV12”,都比“RGB”更高效地存储数据,并提供几乎无损的文件压缩形式(请参阅下面的注释)。
The Video processor automation determines whether automation is to be evaluated at the start of the frame or in the middle of the frame.
“视频处理器自动化”,确定自动化是在帧的开始还是在帧的中间进行评估。
There are also options to allow you to choose whether or not video is to be affected by Solo state of other tracks and/or Muted parent tracks.
还有一些选项允许您选择视频是否受其他轨道独奏状态的影响和/或静音的父级轨道的影响。
Video colorspace options are Auto, 1420/YV12, YUY2 or RGB. Auto will ensure that whatever colorspace the media natively decodes will be used. Usually this is YV12.
“视频色度空间”选项包括“自动”、“I420/YV12”、“YUY2”或“RGB”。“自动”,将确保使用媒体本机解码的任何色度空间。通常这是“YV12”。
YV12 is the output mode used by most modern codecs (such as h264, or MPEG-4, or MPEG-2, or WEBM), and is usually the fastest because it can avoid colorspace conversions.
“YV12”,是大多数现代编解码器(如H264、MPEG-4、MPEG-2或WebM)使用的输出模式,通常是最快的,因为它可以避免色度空间转换。
YUY2 is similar to YV12 but is less-often used, and offers a little bit better color resolution (due to using less subsampling for luminance and chroma). Converting from YV12 to YUY2 is relatively inexpensive. YV12 and YUY2 are both YUV standards.
“YUY2”,类似于YV12,但使用频率较低,并且提供了更好的颜色分辨率(由于使用较少的亮度和色度子采样)。从YV12转换为YUY2成本相对较低。YV12和YUY2都是YUV标准。
RGBA is a completely different mode that matches the pixels on your screen. It is expensive to convert from YV12 or YUY2 to RGBA, and processing video frames in RGBA is also slower. Using RGBA also causes the chromakeyed blit functions (such as the chroma-key preset) to use a different algorithm, so it will look different. In fact, things will generally look slightly different in RGBA mode.
“RGBA”,是一种完全不同的模式,与屏幕上的像素匹配。从YV12或YUY2到RGBA的转换成本较高,在RGBA中处理视频的帧,速度比较慢。使用RGBA还会导致色度抠像的blit函数(如色度抠像预置)使用不同的算法,因此它看起来会不同。事实上,在RGBA模式下,情况通常会略有不同。
Other settings are toggles for the options Always resize video sources to preferred video size, Always resize output to preferred video size, Use high quality filtering when resizing, and Preserve aspect ratio (letterbox) when resizing. The option to Always resize video to preferred video size, if selected, will always resize the video if necessary prior to any processing. This can simplify use of certain FX, but also can be less efficient (since other FX can handle the resize natively as part of their own processing).
其他设置包括切换选项:“总是将视频源的大小调整为首选视频的大小”,“总是将视频输出的大小调整为首选视频的大小”,“调整视频大小时,使用高品质过滤”,以及“调整视频大小时,保留宽高比(宽屏幕)”。如果选中选项“总是将视频源的大小调整为首选视频的大小”,将在任何处理之前,总是根据需要调整视频大小。这可以简化某些FX的使用,但也会降低效率(因为其他FX可以将调整大小作为其自身处理的一部分进行本地处理)。
The option to Always resize output to preferred video size, if selected, forces a resize if necessary at the output stage (meaning processing may happen at some other resolution, but at the end it is resized to the specified size for display). When rendering to a file, this option is is effectively selected, with the preferred width/height set to the rendering width/height output.
如果选中选项“总是将视频输出的大小调整为首选视频的大小”,会在输出阶段,根据需要强制调整大小(这意味着处理可能会在其他分辨率下进行,但最后会调整到指定的大小以供显示)。渲染到文件时,此选项处于有效选中状态,将首选宽度/高度设置为渲染宽度/高度输出。
Shown below is the Options, Preferences, Media, Video window.
下面显示的是“选项”、“首选项”、“媒体和视频”窗口。
Output options are shown below that.
输出选项如下所示。
There is an option to open a window within Preferences to Show decoder information. You can, if you wish, edit the Video decoder priority list to change the order in which priority is allocated. By default, VLC format is assigned the highest priority.
有一个选项可以在首选项中打开一个窗口来显示解码器信息。如果愿意,您可以编辑视频解码器优先级列表以更改优先级的分配顺序。默认情况下,VLC格式被分配为最高优先级。
The option to specify Video output delay can be used if necessary to improve playback synchronization. This can be a small positive or negative amount. There is also an option to disable high-resolution peaks. Enabling the option Video window follows edits will synch the video window to the seek point when audio items are moved or resized. Still image thumbnails can be hidden or displayed in center/tile mode, full height mode or stretch/image mode. You can also specify the default length for thumbnail images.
如有必要,可以使用指定“视频输出延迟”的选项,来改善播放同步。这可以是一个比较小的正数或负数。还可以选择“禁用高分辨率波形缓存”。“视频窗口跟随编辑”,启用该选项后,确保当音频对象被移动或调整大小时,视频窗口将与寻轨点同步。“静止图像缩略图”可以在“居中/平铺模式”、“全高模式”或“拉伸/图像模式”下隐藏或显示。您还可以指定缩略图的“默认长度”。
There is also an option to use standard (accessible) OS editing control for video code.
还有一个选项是对视频代码使用标准(辅助功能)操作系统编辑控件。
You can further choose your preferred behavior when audio items are moved, so that the video window displays content at the mouse cursor position, the start of the audio item, or a snap offset of the audio item.
您可以进一步选择“移动音频对象时”的首选行为,以便视频窗口在“鼠标光标位置”、“音频对象开始处”或“音频对象吸附偏移处”显示内容。
Note also an option to Auto-rotate videos and images with orientation tags on import.
请注意,还有一个选项可以在导入时使用方向标记自动旋转视频和图像。
The Video file item properties dialog (accessed by choosing Source properties from the item context menu) includes options to Ignore audio and for handling Hi-res peaks. There is also an option to Copy audio settings to all video sources.
“视频文件对象属性对话框”,通过从对象上下文菜单中选择“媒体源属性”来访问,包括“忽略音频”和处理“高分辨率波形缓存”的选项。还可以选择“复制音频设置到全部视频源”。
In addition, the File, Render command can be used to export video from REAPER - see Chapter 21.
此外,“文件”--“渲染命令”,可以用来从REAPER导出视频--见第21章。
Note also that the Performance meter includes an option to Display video load.
另请注意,“性能仪表”,包括显示视频负载的选项。
Video actions
视频操作
REAPER’s Actions List includes two actions specifically relevant to video. Remember that if you wish you can assign your own keyboard shortcuts and/or toolbar icons for either or both of these:
REAPER的操作列表包括两个与视频相关的操作。请记住,如果您想要,您可以为以下任一项或两项指定自己的键盘快捷键和工具栏图标:
Video: Show/hide video window (by default Ctrl Shft V)
“视频: 显示/隐藏视频窗口”(默认情况下Ctrl+Shft+V)
Video: Clear video cache/re-render frames
“视频: 清除视频缓存/重新渲染帧”

琴韵晓波

沙发 琴韵晓波说：
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