AVAssetWriterMBS.assetWriterWithFile(outputFile as folderitem, outputFileType as string, byref error as NSErrorMBS) as AVAssetWriterMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
shared method	AVFoundation	MBS AVFoundation Plugin	13.2	✅ Yes	❌ No	❌ No	✅ Yes	All

Returns an asset writer for writing to the file identified by a given folderitem in a format specified by a given UTI.

outputFile: The location of the file to be written.
outputFileType: The UTI-identified format of the file to be written.
For example, AVFileTypeQuickTimeMovie for a QuickTime movie file, AVFileTypeMPEG4 for an MPEG-4 file, and AVFileTypeAMR for an adaptive multi-rate audio format file.
Error: If initialization of the asset writer fails, upon return contains an error object that describes the problem.

Returns an asset writer for writing to the file identified by URL in the format specified by outputFileType, or nil if the writer could not be initialized.
Writing will fail if a file already exists at URL. UTIs for container formats that can be written are declared in AVMediaFormat.h.

Some examples using this method:

• /AVFoundation/Transcode
• /AVFoundation/Transcode batch
• /AVFoundation/Transcode parallel

AVAssetWriterMBS.assetWriterWithURL(outputURL as string, outputFileType as string, byref error as NSErrorMBS) as AVAssetWriterMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
shared method	AVFoundation	MBS AVFoundation Plugin	13.2	✅ Yes	❌ No	❌ No	✅ Yes	All

Returns an asset writer for writing to the file identified by a given URL in a format specified by a given UTI.

outputURL: The location of the file to be written. The URL must be a file URL.
outputFileType: The UTI-identified format of the file to be written.
For example, AVFileTypeQuickTimeMovie for a QuickTime movie file, AVFileTypeMPEG4 for an MPEG-4 file, and AVFileTypeAMR for an adaptive multi-rate audio format file.
Error: If initialization of the asset writer fails, upon return contains an error object that describes the problem.

Returns an asset writer for writing to the file identified by URL in the format specified by outputFileType, or nil if the writer could not be initialized.
Writing will fail if a file already exists at URL. UTIs for container formats that can be written are declared in AVMediaFormat.h.

AVAssetWriterMBS.available as boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
shared method	AVFoundation	MBS AVFoundation Plugin	13.2	✅ Yes	❌ No	❌ No	✅ Yes	All

Whether this class is available.

Returns true on Mac OS X 10.7 and newer.