September 27, 2026

Facebook 视频质量解释:标清、高清和更高分辨率

Facebook 视频质量解释:标清、高清和更高分辨率

我理解这一点很重要,

However, that video quality is decided by multiple factors. Upload quality, website's compression standard, codec used for compression and the version of the video made available are some of the factors that may impact the overall video quality.


根据用户的带宽和设备,Facebook 可能会播放比最初上传的质量更低或更高的视频。在 2019 年的一份报告中,The Verge 援引 Facebook(现为 Meta)的话说,其视频系统“......可以以多种分辨率渲染视频,例如 360p、480p、720p 和 1080p,并使用自适应比特率流式传输视频。”


 When using FBB 下载器, the best rule of thumb is to choose the highest resolution video that is available.


了解视频分辨率

Resolution of a video refers to the number of pixels in each frame of the video.

一些标准宽屏分辨率是:


 640 x 360, often used with older standard definition (SD) video


 1280 x 720(720p)


 1920 x 1080 (1080p)


 2560 x 1440(1440p 或 2K)


 3840 x 2160 (2K or 4K UHD)


 Resolution describes how many pixels are in a video, but there are other factors that impact the overall quality. Video encoders can change the final video quality even if it is of a higher resolution.


 两个 1080p 视频就是一个很好的例子。一个可能是由高质量摄像机录制的,而另一个是由低质量摄像机录制的视频。低质量摄像机录制的视频也可能已被压缩。


标准清晰度(标清)videos are of a lower resolution compared to High Definition (HD) videos. SD videos can be found at resolutions of 360p and 480p.


SD 视频的质量可以接受。当在手机上播放标清视频时尤其如此,因为手机的显示屏通常较小。此外,标清视频的文件大小较小。

更高的像素数有助于更大的显示器。然而,高清拍摄的效果取决于原始来源。以高清拍摄的视频仍然可能被压缩并且看起来很糟糕。


What is 720p?

720p 指的是 1280 x 720 的分辨率。

它被认为是高清的,是图像质量和文件大小之间的良好折衷。

When a source has a relatively low frame size and you want a good quality video without a large file size, 720p would be a good choice.

当 Facebook 视频只有 720p 时,并不意味着视频质量很差。这可能是视频内容的最佳质量。


什么是 1080p?

1080p means a resolution of 1920 x 1080.

它被认为是“真实的”或“真正的”高清。

A 1080p video looks better than 720p when more pixel density is required. However, a 720p video can look just as good if the source is of a good quality and isn't heavily compressed.


Resolution should always be evaluated in addition to other aspects of video quality.


1080p 以后还有什么?

It's possible to capture video at a resolution higher than 1080p.

UHD 或 4K 内容以 3840 × 2160 录制。其他分辨率也可以以 2K 或 1440p 计量。

Facebook 上的所有视频(甚至可能是大部分视频)都不会以 1080p 以上的分辨率进行编码。


更高的分辨率通常需要更多的带宽,尽管 Facebook 可能使用高于 1080p 的分辨率,但您不能因为缺乏相反的证据而假设特定视频将高于 1080p。


不同视频的不同分辨率


Different Facebook videos may have different resolutions.

有几个不同的因素会影响用户看到的视频的分辨率。用于捕获和编辑视频的设备可能有所不同。根据用户的设备和技能,视频可以以高分辨率录制,也可以压缩为较低分辨率。


Facebook 还可能处理视频以更改分辨率,或重新编码视频以更改压缩和/或编解码器。所有这些都会影响用户看到的视频的最终质量。

Because of the processing Facebook does on uploaded videos, two videos that are uploaded within a short time of each other may be encoded at differing qualities.


Facebook 只能发布分辨率等于或低于所上传视频文件分辨率的视频。


最初以 1080p 录制的视频比 720p 视频拥有更多细节。然而,在将视频发送给用户之前,Facebook 可能会进一步处理视频并降低质量。


Both examples show, for different reasons, that there are impacts to video quality from processing.


处理视频的好处之一是减小文件大小。视频文件可以包含大量数据。如果视频未经处理,则传输视频可能需要大量带宽。对于要在 Facebook 上发布的视频,必须对视频文件进行处理。 Meta 发布了一份报告,描述了它如何使用编码、压缩、编解码器和自适应比特率流来处理视频。

虽然处理视频可以通过减小文件大小来使视频文件受益,但视觉质量可能会损失。这可能会导致缺乏细节、图像出现块以及颜色梯度丢失。其他因素可能会影响视觉质量的损失程度。缺少细节


This is an important difference.

例如,如果可用的最高分辨率视频为 480p,视频下载者可以将分辨率更改为 720p 或 1080p。然而,提高分辨率并不会添加视频中原本没有的细节。

To be clear, just because a video has an increased resolution, that doesn’t mean detail has been added to the video.


提高视频的帧速率也会发生类似的情况。您不能仅通过增加视频的帧速率来将低帧速率视频更改为高帧速率。


The same idea is used with FBB Load. Upscaling a video does not change the overall quality of the video.


分辨率和比特率

通常,较高分辨率的视频比较低分辨率的视频包含更多细节。提高分辨率并不一定会增加细节。

Bitrate can also impact detail. A video with a low bitrate can contain artifacts that negatively impact the quality of the video. A higher bitrate can allow for better detail.


在比较视频的下载量时,查看分辨率很重要。然而,分辨率并不是唯一应该考虑的因素。

Using the download of the best quality is situation dependent.  For example, if the video is just being saved for later, the bitrate and resolution of the video does not matter as much. If the video is being edited, the bitrate and resolution matters more. If the video is being posted, both resolution and bitrate should be taken into account.


适用于移动设备观看

The resolution does not need to be very high, since the video will be played on a small screen.

较低分辨率的文件也需要较少的空间和/或数据。


电脑观看

屏幕越大,就越能欣赏到更多细节。

A 1080p version might be a good choice when a lot of details, like faces or text, are present in the video.


大屏幕观看

A high quality version will always be better than a low quality one, and especially helpful when a lot of detail is expected.

质量更好的版本也将有助于解决大屏幕距离较远的问题。

When a source is available in multiple resolutions, the highest quality will almost always be the largest.

高质量的长视频比低质量的短视频占用的空间更少。


这意味着,如果您想下载多个视频,质量会极大地影响所使用的总空间。

Choosing the highest quality for many videos can take a lot more space than choosing lower qualities.

如果空间非常有限(例如需要大量视频时),不为单个视频选择最高质量可能会很好。

问题是,您用来观看视频的设备会影响实际文件的质量吗?

虽然不同的设备可能会改变您感知质量的方式,但它们实际上不会改变文件的质量。


For example,无论您使用什么设备观看,1080p 的视频文件质量都保持不变。


The experience of viewing the video file, however, can change a lot based on factors such as the display resolution of the device and the distance from the device you view it from.


For example,720p 文件在小手机显示屏上可能看起来非常清晰,但当放大并在更大的手机显示屏上查看时,例如计算机、显示器,它可能看起来很差并且有很多压缩伪影。


一般来说,有很多变量会影响您对视频质量的看法。



为什么 Facebook 视频在不同时间看起来不同?

主要原因是 Facebook 根据您的连接和其他因素使用不同的视频质量。

Facebook may use different qualities of the same video to make the playback smoother and avoid buffering.

This means, just because you see a low quality Facebook video, it doesn't mean that Facebook doesn't have a better copy of that video.


是什么导致 Facebook 视频播放问题?

Facebook 建议您尝试重置连接并使用更新、更好的浏览器分别排除连接和浏览器问题,然后再假设 Facebook 的视频基础设施出现问题。


FBB 下载的预期质量如何?


The expected quality of FBB下载is the same as the quality of the Facebook videos you are processing with it. FBB 下载中 cannot change Facebook video quality.


视频质量由视频主机提供的最高分辨率决定。如果主机允许您选择高达 1080p 的分辨率,则 FBB Load 将为您提供 1080p(如果这是您想要的最高质量)。如果提供的最高分辨率为 720p,则该视频的最高质量将为 720p。


FBB下载没有义务以比现有分辨率更高的分辨率制作视频。例如,如果 1440p 不可用,则不需要 FBB Load 来生成该分辨率。

So, the resolution offered by FBB Load is more important than an abstract statement about the maximum resolution a downloader is capable of producing.


Facebook processes videos in several steps. Think about these steps in this order when assessing Facebook video quality.


1. 原始录音的质量

How good was the camera or video capture device when it captured the video? Was it an HD video camera? Was it a low quality webcam?


2. Facebook 视频处理的质量

这包括 Facebook 压缩视频的效果,以及 Facebook 可能对视频执行的其他处理的影响。


3. 处理流中视频的质量

How well did Facebook deliver the video?

What qualities of the content can be specified?

4. Your Screen

你的显示器有多大?

5. 您的要求

较小的文件会方便还是您想要最大质量的文件(如果有)?

Considering these points helps if the description of a file's quality sounds good but you don't fully understand it.


常见问题解答


Is 1080p better than 720p?

It depends on the recording. The video's file size, how it was compressed, and the display can affect the quality of the video.


720p 算高清吗?

是的,如果视频为 1280 x 720 像素,则被视为高清。


下载 1080p 可以获得更好的质量吗?

如果录音一开始就不具备这种质量,则不会。


What causes different levels of quality when dealing with 1080p video?

在查看视频质量时,有多种因素在起作用,包括源、比特率、编解码器和压缩,以及摄像机的质量和照明条件等等。因此,具有相同分辨率(例如 1080p)的视频可能看起来非常不同。


Are HDR and HD videos uploaded to Facebook in their original quality?

不会。Facebook 会生成质量较低的视频版本。然而,有时不会生成更高质量的版本,并且视频的最佳可用质量可能仍然很低。


Should I always choose the highest available quality?

这取决于具体情况。当需要节省设备空间时,通常会使用最佳可用质量的视频。然而,对于更休闲的观看,较低质量的视频可能就足够了。


简而言之,

在 Facebook 上选择视频质量可能会产生误导。分辨率只是定义视频质量的因素之一。还有其他几个因素,包括录制后处理、压缩和显示分辨率。


When using the term "p" to define resolution on Facebook, 720p means the video has a resolution of 1280 x 720 pixels, and 1080p videos are shown at 1920 x 1080 pixels. Beyond 1080p, there may be 1440p and 4K videos on Facebook; however, one should not assume that those higher resolutions will be available for all videos.


With FBB下载,最好的办法是查看每个视频的可用选项并选择满足您需求的分辨率。您不应期望所有视频都会提供最大分辨率。


Keep in mind that the Facebook or other video source's quality is the best that the video will ever be. 例如, converting a video that is of a lower quality to a 1080p or 4K resolution will not improve the quality and will not provide a true 1080p or 4K video.