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Type | Topic | Plugin | Version | macOS | Windows | Linux | iOS | Targets |
class | AVFoundation | MBS AVFoundation Plugin | 13.2 | ✅ Yes | ❌ No | ❌ No | ✅ Yes | All |
You can get the media data for one or more assets from instances of AVAssetReader or even from outside the AV Foundation API set. Media data is presented to AVAssetWriter for writing in the form of CMSampleBuffers. Sequences of sample data appended to the asset writer inputs are considered to fall within "sample-writing sessions." You must call startSessionAtSourceTime to begin one of these sessions.
Using AVAssetWriter, you can optionally re-encode media samples as they are written. You can also optionally write metadata collections to the output file.
You can only use a given instance of AVAssetWriter once to write to a single file. If you want to write to files multiple times, you must use a new instance of AVAssetWriter each time.
Constant | Value | Description |
---|---|---|
AVAssetWriterStatusCancelled | 4 |
Cancelled |
AVAssetWriterStatusCompleted | 2 |
Completed |
AVAssetWriterStatusFailed | 3 |
Failed |
AVAssetWriterStatusUnknown | 0 |
Unknown |
AVAssetWriterStatusWriting | 1 |
Writing |
This class has no sub classes.
The items on this page are in the following plugins: MBS AVFoundation Plugin.
AVAssetWriterInputPixelBufferAdaptorMBS - AVAsynchronousVideoCompositionRequestMBS