Callback

Kotlin |Java

abstract class Callback

kotlin.Any
↳	android.media.MediaCodec.Callback

MediaCodec callback interface. Used to notify the user asynchronously of various MediaCodec events.

Summary

Public constructors
`Callback()`

Public methods
open Unit	`onCryptoError(codec: MediaCodec, e: MediaCodec.CryptoException)` Called only when MediaCodec encountered a crypto(decryption) error when using a decoder configured with CONFIGURE_FLAG_USE_CRYPTO_ASYNC flag along with crypto or descrambler object.
abstract Unit	`onError(codec: MediaCodec, e: MediaCodec.CodecException)` Called when the MediaCodec encountered an error
abstract Unit	`onInputBufferAvailable(codec: MediaCodec, index: Int)` Called when an input buffer becomes available.
abstract Unit	`onOutputBufferAvailable(codec: MediaCodec, index: Int, info: MediaCodec.BufferInfo)` Called when an output buffer becomes available.
open Unit	`onOutputBuffersAvailable(codec: MediaCodec, index: Int, infos: ArrayDeque<MediaCodec.BufferInfo!>)` Called when multiple access-units are available in the output.
abstract Unit	`onOutputFormatChanged(codec: MediaCodec, format: MediaFormat)` Called when the output format has changed

Public constructors

Callback

Callback()

Public methods

onCryptoError

Added in API level 34

open fun onCryptoError(
    codec: MediaCodec, 
    e: MediaCodec.CryptoException
): Unit

Called only when MediaCodec encountered a crypto(decryption) error when using a decoder configured with CONFIGURE_FLAG_USE_CRYPTO_ASYNC flag along with crypto or descrambler object.

Parameters
`codec`	MediaCodec: The MediaCodec object This value cannot be `null`.
`e`	MediaCodec.CryptoException: The `MediaCodec.CryptoException` object with error details. This value cannot be `null`.

onError

Added in API level 21

abstract fun onError(
    codec: MediaCodec, 
    e: MediaCodec.CodecException
): Unit

Called when the MediaCodec encountered an error

Parameters
`codec`	MediaCodec: The MediaCodec object. This value cannot be `null`.
`e`	MediaCodec.CodecException: The `MediaCodec.CodecException` object describing the error. This value cannot be `null`.

onInputBufferAvailable

Added in API level 21

abstract fun onInputBufferAvailable(
    codec: MediaCodec, 
    index: Int
): Unit

Called when an input buffer becomes available.

Parameters
`codec`	MediaCodec: The MediaCodec object. This value cannot be `null`.
`index`	Int: The index of the available input buffer.

onOutputBufferAvailable

Added in API level 21

abstract fun onOutputBufferAvailable(
    codec: MediaCodec, 
    index: Int, 
    info: MediaCodec.BufferInfo
): Unit

Called when an output buffer becomes available.

Parameters
`codec`	MediaCodec: The MediaCodec object. This value cannot be `null`.
`index`	Int: The index of the available output buffer.
`info`	MediaCodec.BufferInfo: Info regarding the available output buffer `MediaCodec.BufferInfo`. This value cannot be `null`.

onOutputBuffersAvailable

Added in API level 35

open fun onOutputBuffersAvailable(
    codec: MediaCodec, 
    index: Int, 
    infos: ArrayDeque<MediaCodec.BufferInfo!>
): Unit

Called when multiple access-units are available in the output.

Parameters
`codec`	MediaCodec: The MediaCodec object. This value cannot be `null`.
`index`	Int: The index of the available output buffer.
`infos`	ArrayDeque<MediaCodec.BufferInfo!>: Infos describing the available output buffer `MediaCodec.BufferInfo`. Access units present in the output buffer are laid out contiguously without gaps and in order. This value cannot be `null`.

onOutputFormatChanged

Added in API level 21

abstract fun onOutputFormatChanged(
    codec: MediaCodec, 
    format: MediaFormat
): Unit

Called when the output format has changed

Parameters
`codec`	MediaCodec: The MediaCodec object. This value cannot be `null`.
`format`	MediaFormat: The new output format. This value cannot be `null`.