Data Sources
Starting a transcoding operation will require a source for our data, which is not necessarily
a File. The DataSource objects will automatically take care about releasing streams / resources,
which is convenient but it means that they can not be used twice.
kotlin
Transcoder.into(filePath) .addDataSource(source1) .transcode()
Source Types
UriDataSource
The Android friendly source can be created with UriDataSource(context, uri) or simply
using addDataSource(context, uri) in the transcoding builder.
FileDescriptorDataSource
A data source backed by a file descriptor. Use FileDescriptorDataSource(descriptor) or
simply addDataSource(descriptor) in the transcoding builder. Note that it is the caller
responsibility to close the file descriptor.
FilePathDataSource
A data source backed by a file absolute path. Use FilePathDataSource(path) or
simply addDataSource(path) in the transcoding builder.
AssetFileDescriptorDataSource
A data source backed by Android's AssetFileDescriptor. Use AssetFileDescriptorDataSource(descriptor)
or simply addDataSource(descriptor) in the transcoding builder. Note that it is the caller
responsibility to close the file descriptor.
Track specific sources
Although a media source can have both audio and video, you can select a specific track for transcoding and exclude the other(s). For example, to select the video track only:
javaTranscoder.into(filePath) .addDataSource(TrackType.VIDEO, source) .transcode()
Related APIs
| Method | Description |
|---|---|
addDataSource(Context, Uri) | Adds a new source for the given Uri. |
addDataSource(FileDescriptor) | Adds a new source for the given FileDescriptor. |
addDataSource(String) | Adds a new source for the given file path. |
addDataSource(DataSource) | Adds a new source. |
addDataSource(TrackType, DataSource) | Adds a new source restricted to the given TrackType. |