iphone - Can i use AVAssetWriter in place of AVExportSession? -


i want crop video given lenght , width , x , y coordinates , seems not @ possible avmutablecomposition planning use avassetwriter crop video using aspectfill property in video setting.

but question can use avassetwriter replacement avexportsession ??

if yes, how initialise avassetwriterinput avasset object in avexportsession,like this

[[avassetexportsession alloc] initwithasset:videoasset presetname:avassetexportpresethighestquality];

it’s possible looking avmutablecomposition naturalsize property looks here, allows scaling (not cropping) of video wished sizes.

https://developer.apple.com/library/mac/documentation/avfoundation/reference/avmutablecomposition_class/reference/reference.html#//apple_ref/occ/instp/avmutablecomposition/naturalsize


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