ios - Iphone Rotate video within current frame -

hi having video of width = 720 height = 1280

so video in portait mode.

i want video rotate 90 degree. want rotated video inside same size of video 720,1280. yes video scaled , need type of rotation .

please check image before , after :

this mine code :

 cgaffinetransform rotationtransform =  cgaffinetransformmakerotation(degrees_to_radians(90.0));     cgaffinetransform rotatetranslate =   cgaffinetransformtranslate(rotationtransform,400,320);     [layerinst settransform:rotatetranslate attime:kcmtimezero]; 

you can use scaling, rotation , translation transform , concat each transform original asset transform. please try below code question

        // here assettransform avassettrack preferred transform         cgaffinetransform defaulttransfrom = assettransform;         // rotate 90 degree         cgaffinetransform rotatetransform = cgaffinetransformmakerotation( m_pi_2);         //get scale factor of resized video         float scalefactor = videosize.width/videosize.height;         cgaffinetransform scaletransform = cgaffinetransformmakescale(scalefactor,scalefactor);         // blank space @ bottom after rotation , scaling         float blankspaceatbottom = (videosize.height-scalefactor*videosize.width);         //increase y translation according scaling factor         float ytranslation = blankspaceatbottom/2/scalefactor;         cgaffinetransform translationtransform = cgaffinetransformmaketranslation(videosize.height,ytranslation);         //concat transform         cgaffinetransform finaltransform = cgaffinetransformconcat(cgaffinetransformconcat(defaulttransfrom,rotatetransform),translationtransform);        finaltransform = cgaffinetransformconcat(finaltransform,scaletransform);         //apply final transform layer instruction         [layerinstruction settransform:finaltransform attime:kcmtimezero]; 

please let me know if need more clarification.