TestSpeedProvider

Artifact: androidx.media3:media3-test-utils

Kotlin |Java

@UnstableApi
class TestSpeedProvider : SpeedProvider

SpeedProvider for tests

Summary

Public functions
`java-static TestSpeedProvider!`	`createWithFrameCounts( audioFormat: AudioProcessor.AudioFormat!, frameCounts: IntArray!, speeds: FloatArray! )` Creates a `TestSpeedProvider` instance.
`java-static TestSpeedProvider!`	`createWithStartTimes(startTimesUs: LongArray!, speeds: FloatArray!)` Creates a `TestSpeedProvider` instance.
`Long`	`getNextSpeedChangeTimeUs(timeUs: Long)` Returns the timestamp of the next speed change, if there is any.
`Float`	`getSpeed(timeUs: Long)` Returns the media speed from the provided timestamp.

Public functions

createWithFrameCounts

java-static fun createWithFrameCounts(
    audioFormat: AudioProcessor.AudioFormat!,
    frameCounts: IntArray!,
    speeds: FloatArray!
): TestSpeedProvider!

Creates a TestSpeedProvider instance.

Parameters
`audioFormat: AudioProcessor.AudioFormat!`	the `AudioFormat`.
`frameCounts: IntArray!`	The frame counts for which the same speed should be applied.
`speeds: FloatArray!`	The speeds corresponding to each frame count. Consecutive values must be distinct.

Returns
`TestSpeedProvider!`	A `TestSpeedProvider`.

createWithStartTimes

java-static fun createWithStartTimes(startTimesUs: LongArray!, speeds: FloatArray!): TestSpeedProvider!

Creates a TestSpeedProvider instance.

Parameters
`startTimesUs: LongArray!`	The speed change start times, in microseconds. The values must be distinct and in increasing order.
`speeds: FloatArray!`	The speeds corresponding to each start time. Consecutive values must be distinct.

Returns
`TestSpeedProvider!`	A `TestSpeedProvider`.

getNextSpeedChangeTimeUs

fun getNextSpeedChangeTimeUs(timeUs: Long): Long

Returns the timestamp of the next speed change, if there is any.

Parameters
`timeUs: Long`	A timestamp, in microseconds.

Returns
`Long`	The timestamp of the next speed change, in microseconds, or `TIME_UNSET` if there is no next speed change. If `timeUs` corresponds to a speed change, the returned value corresponds to the following speed change.

getSpeed

fun getSpeed(timeUs: Long): Float

Returns the media speed from the provided timestamp.

The media speed will stay the same until the next specified speed change.

Parameters
`timeUs: Long`	The timestamp of the media.

Returns
`Float`	The speed that the media should be played at.