PlaybackParams

class PlaybackParams

Structure for common playback params.

Used by MediaPlayergetPlaybackParams and setPlaybackParams to control playback behavior.

PlaybackParams returned by getPlaybackParams will always have values. In case of setPlaybackParams, the player will not update the param if the value is not set. For example, if pitch is set while speed is not set, only pitch will be updated.

Note that the speed value does not change the player state. For example, if getPlaybackParams is called with the speed of 2.0f in PLAYER_STATE_PAUSED, the player will just update internal property and stay paused. Once play is called afterwards, the player will start playback with the given speed. Calling this with zero speed is not allowed.

audio fallback mode: select out-of-range parameter handling.

• AUDIO_FALLBACK_MODE_DEFAULT: System will determine best handling.
• AUDIO_FALLBACK_MODE_MUTE: Play silence for params normally out of range.
• AUDIO_FALLBACK_MODE_FAIL: Return from AudioTrack.setPlaybackParams(PlaybackParams) .

pitch: increases or decreases the tonal frequency of the audio content. It is expressed as a multiplicative factor, where normal pitch is 1.0f.

speed: increases or decreases the time to play back a set of audio or video frames. It is expressed as a multiplicative factor, where normal speed is 1.0f.

Different combinations of speed and pitch may be used for audio playback; some common ones:

• Pitch equals 1.0f. Speed change will be done with pitch preserved, often called timestretching.
• Pitch equals speed. Speed change will be done by resampling, similar to setPlaybackRate.

Summary

const val AUDIO_FALLBACK_MODE_DEFAULT = 0: Int

const val AUDIO_FALLBACK_MODE_FAIL = 2: Int

const val AUDIO_FALLBACK_MODE_MUTE = 1: Int

fun getAudioFallbackMode(): Int?

fun getPitch(): Float?

fun getSpeed(): Float?