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我正在阅读 Apple 需要流式传输 HTTP Live Streaming 才能满足此要求

When authoring your content for HTTP Live Streaming over cellular, you must provide a baseline stream with a maximum measured bitrate of 192 kbps in addition to any other higher bitrate streams.

我正在使用 AWS Elastic Transcoder 使用预设的 HLS 1k 转换视频文件,这表示这是比特率

Bit Rate
872

我使用了 Apple 的 mediafilevalidator,这是输出

Discontinuity: sequence: 0, parsed segment count: 3 of 3, duration: 9.067 sec, average: 1013.71 kb/s, max: 1176.55 kb/s
Track ID: 1
Audio Codec: AAC-LC
Audio sample rate: 44100 Hz
Audio channel layout: Stereo (L R)
Track ID: 2
Video Codec: avc1
Video profile: Main
Video level: 3.1
Video resolution: 243x432
Video average IDR interval: 3.000000, Standard deviation: 0.000000
Video frame rate: 30.000

HLS 1M 流是否满足 Apple 的 192kpbs 要求?我真的不能根据信息来判断。

如果 HLS 1k 满足 1MB/s,那么 HLS 400k 满足 400kpbs,那么没有更低的选择,我需要包含纯音频流吗?

谢谢!

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