HLS 480p的预设设置| 720p | 1080p [英] HLS preset settings for 480p | 720p | 1080p
问题描述
我们正在尝试使用AWS转码器将mp4视频转码为HLS。我们看到只有几个可用的预设（最高为2M ）。这给我们提供的最大分辨率是 JWPlayer 上的360p。
We are trying to transcode mp4 videos into HLS using AWS transcoder. We see that there are only few presets available (highest being 2M). The max resolution this gives us is 360p on JWPlayer.
如果我们想要更高的分辨率（ 480p | 720p | 1080p ），我们知道我们需要以更高的比特率转码视频。为此，我们将需要创建新的预设。
If we want higher resolution (480p | 720p | 1080p), we understand that we need to transcode videos at higher bit rate. For that we will need to create new presets.
有人可以通过不同的转码器设置来帮助我们创建这些预设？我们不了解预设中显示的大多数字段。
Could someone help us with different transcoder settings to create these presets? We don't understand most of the fields presented in the presets.
谢谢
推荐答案
我认为，解决此问题的最快方法是采用现有的高清预设，并将其更改为HLS格式。为此，请获取预设，然后单击系统预设：Full HD 1080i60 MP4预设左侧的放大镜，然后从左上方选择复制。从那里我可能会进行以下更改：
I believe the fasted way to remedy this issue would be to take an existing high definition preset, and alter it to the HLS format. To do this, got the Presets and click on the magnifying lens left of the "System preset: Full HD 1080i60 MP4" preset, and select "Copy" from the top left. From there I would may the following changes:
- 容器：.ts
- （配置文件：main或高-实验:)）
- 隔行扫描模式（自动）
- 尺寸调整政策（选择您认为最佳的选择（1）-
- （可选，使用页面左侧的-Watermark删除水印设置。 li>
- 然后单击创建预设。
- Container: .ts
- (Profile: main or high -- experiment :) )
- Interlace mode (auto)
- Sizing Policy (choose to what you believe is best(1) -- the "2M" preset was using 1024x768 res. Shrink to fit, for reference.)
- (optionally remove watermark settings, using the -Watermark on the left hand side of the page.
- And click "Create Preset".
如果您想了解有关预设配置值的更多信息，本指南（2）很好地概述了每个值的含义。
If you would like more information about the preset configuration values, this guide(2) gives a good overview of what each value means.
（1） http://docs.aws.amazon.com/pt_br/elastictranscoder/latest/developerguide/aspect-ratios.html
（2） http://docs.aws.amazon.com/pt_br/elastictranscoder/latest/developerguide/preset-settings.html#preset-settings-video
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