Does a youtube video with a still image (ex. music) drain as much mobile data as a moving video (gameplay, etc.), and why/why not?
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If you do background playback it just downloads the audio and not video, reducing bandwidth considerably.
YouTube Vanced is awesome.
Otherwise video compression works by altering a static image. If the image remains static there’s basically nothing no do, as long as it doesn’t create needless key frames (whole images).
I have an actual answer and the answer is *sort of*. The reason is keyframes. Every several seconds in a video, the current image gets sent in its entirety (without motion compression). This is so that if you jump to some time in the video, the player only has to work backwards to the last keyframe, to see what is displayed at that time.
This means the same image gets sent over and over. It can still be smaller than a real video, because there is no data to send about the in-between frames.
Don’t forget if you don’t care about the image you can set it to the lowest quality (usually 240p)
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