ios - Loading PHAsset data FAST. -


i using requestimageforasset load assets, described in apple dev documentation.

it works , all, find very slow when comes large assets, such videos of several hundreds of megabytes.

my goal load asset, copy chunk of data, , send chunk server.

i load chunks because of obvious reasons, ram limitation.

i have couple of questions in mind this:

  1. how can copy chunks of large video assets fast?

  2. can direct , fast access asset data without calling requestimageforasset?

  3. should maintain requestimageforasset open until send data , leave it's completion block?

so, approach should take , can find info this?


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