If it is for a chat avatar, will a thumbnail work? Every image file has a thumbnail image embedded in the file's metadata section. You could simply read the necessary bytes and upload/display them.
I have used this as3 library in the past and it works quite well: https://github.com/bashi/exif-as3 Thanks, Om On Mon, Apr 24, 2017 at 11:48 AM, Greg Dove <[email protected]> wrote: > If JPEGEncoder is an actionscript encoder, you could switch to using the > native encoding support. It is much faster. > > http://help.adobe.com/en_US/FlashPlatform/reference/ > actionscript/3/flash/display/BitmapData.html#encode() > > > > On Tue, Apr 25, 2017 at 6:45 AM, Erik J. Thomas <[email protected]> wrote: > > > Hey all: > > > > My flex mobile app posts social chat messages with an optional image. It > > uses CameraRoll to allow the user to select any image on their phone. But > > modern phones take HUGE pics. We don't need full res photos for the chat > > and don't want to use up the bandwidth uploading full images and resizing > > on the server. > > > > The API we hit accepts an octet stream of bytes that represents the file. > > All this functions fine, but it takes about 10 seconds to upload an HDR > > rear camera photo on an iPhone 6 Plus. > > > > I'd like to resize it on the client. But using both PNG and JPG encoders > > are far too slow: > > > > var bitmapData:BitmapData = new BitmapData(photo.width, photo.height, > > true, 0xffffff); > > var jpegEncoder:JPEGEncoder = new JPEGEncoder(); > > urlRequest.data = jpegEncoder.encode(bitmapData); // this takes like 12 > > seconds for a 13 MB iPhone 6 photo. > > > > So uploading is the better solution from a user experience perspective > > because UI can remain responsive while the async upload occurs. Resizing > > the image using an encoder cannot be done asynchronously so it blocks UI > > and we can do nothing but show a busy cursor. > > > > I don't like either solution. Someone out there have any ideas? > > > > Thanks. > > > > Erik > > > > >
