Muxer.Factory

Kotlin |Java

interface Muxer.Factory

Known direct subclasses

DefaultMuxer.Factory, FrameworkMuxer.Factory, InAppFragmentedMp4Muxer.Factory, InAppMp4Muxer.Factory

`DefaultMuxer.Factory`	A `Muxer.Factory` for `DefaultMuxer`.
`FrameworkMuxer.Factory`	`Muxer.Factory` for `FrameworkMuxer`.
`InAppFragmentedMp4Muxer.Factory`	`Muxer.Factory` for `InAppFragmentedMp4Muxer`.
`InAppMp4Muxer.Factory`	`Muxer.Factory` for `InAppMp4Muxer`.

Factory for muxers.

Summary

Public functions
`Muxer!`	`create(path: String!)` Returns a new `Muxer`.
`Muxer!`	`create(pfd: ParcelFileDescriptor!)` Returns a new `Muxer`.
`ImmutableList<String!>!`	`getSupportedSampleMimeTypes(@C.TrackType trackType: Int)` Returns the supported sample `MIME types` for the given `C.TrackType`.
`Boolean`	`supportsWritingNegativeTimestampsInEditList()` Whether the muxer supports writing negative timestamps into an edit list to instruct players to ignore these samples.

Public functions

create

fun create(path: String!): Muxer!

Returns a new Muxer.

Parameters
`path: String!`	The path to the output file.

Throws
`androidx.media3.muxer.MuxerException`	If an error occurs opening the output file for writing.

create

fun create(pfd: ParcelFileDescriptor!): Muxer!

Returns a new Muxer.

The caller transfers ownership of the ParcelFileDescriptor to the Factory. If this method returns successfully, the created Muxer is responsible for closing the descriptor when close is called. If an error occurs and a MuxerException is thrown, the descriptor is closed before the exception is thrown.

Whether the provided ParcelFileDescriptor must be seekable depends on the container format and Muxer implementation. For example, standard MP4 muxers require seekable descriptors (such as those opened with "rwt" or "rw"), whereas streaming muxers (such as fragmented MP4 muxers) also accept non-seekable streams like pipes.

Parameters
`pfd: ParcelFileDescriptor!`	the `ParcelFileDescriptor` to write output to

Throws
`androidx.media3.muxer.MuxerException`	if an error occurs opening the output for writing or if the descriptor does not satisfy the seekability requirements of the muxer

getSupportedSampleMimeTypes

fun getSupportedSampleMimeTypes(@C.TrackType trackType: Int): ImmutableList<String!>!

Returns the supported sample MIME types for the given C.TrackType.

supportsWritingNegativeTimestampsInEditList

fun supportsWritingNegativeTimestampsInEditList(): Boolean

Whether the muxer supports writing negative timestamps into an edit list to instruct players to ignore these samples.