ios - Using VTCompressionSession as in WWDC2014 -

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the documentation on library non-existent, need here.

goal: need h264 encoding (preferably both audio , video, video fine , i'll play around few days audio work too) can pass mpeg transport stream.

what have: have camera records , outputs sample buffers. inputs camera , built-in mic.

a few questions: a. possible camera output cmsamplebuffers in h264 format?i mean, 2014 has being produced vtcompressionsessions while writing captureoutput, see cmsamplebuffer... b. how set vtcompressionsession? how session used? overarching top-level discussion might people understand what's going on in barely documented library.

code here (please ask more if need it; i'm putting captureoutput because don't know how relevant rest of code is):

func captureoutput(captureoutput: avcaptureoutput!, didoutputsamplebuffer samplebuffer: cmsamplebuffer!, fromconnection connection: avcaptureconnection!) {     println(cmsamplebuffergetformatdescription(samplebuffer))     var imagebuffer = cmsamplebuffergetimagebuffer(samplebuffer)     if imagebuffer != nil {         var pixelbuffer = imagebuffer cvpixelbufferref         var timestamp = cmsamplebuffergetpresentationtimestamp(samplebuffer cmsamplebufferref)         //do vtcompressionsession stuff     } }

thanks all!


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