Why doesn't Chromecast respect fractional playbackRate values on video elements?

Question

Using the debugger on the sample cast app I try to set a fractional playback value:

document.getElementById("vid").playbackRate = 0.5;

And the video will not change speed. If I set playbackRate to zero the video will pause. And if I set it to 1.0 it will resume. Note that on chrome desktop the video element DOES respect fractional playbackRate values.

Answer 1

This was disabled on the device due to the hardware limitations. For example, if one tries to play an HD movie in 3x speed, the hardware won't be able to keep up so it was disabled to avoid such issues. If there is a strong need to support rates < 1, please open a feature request and our team will review that.