視頻質(zhì)量降級(jí)枚舉
enum class DegradationPreference {
// Don't take any actions based on over-utilization signals. Not part of the
// web API.
DISABLED,
// On over-use, request lower frame rate, possibly causing frame drops.
MAINTAIN_FRAMERATE,
// On over-use, request lower resolution, possibly causing down-scaling.
MAINTAIN_RESOLUTION,
// Try to strike a "pleasing" balance between frame rate or resolution.
BALANCED,
};
