objective c - Conversion error OBJ-C to Swift 3 -
i trying convert ezaudio (https://github.com/syedhali/ezaudio) objective-c library swift 3. doing "ezaudioplayfileexample" part in it.
objective-c
- (void)openfilewithfilepathurl:(nsurl*)filepathurl { self.audiofile = [ezaudiofile audiofilewithurl:filepathurl]; self.filepathlabel.text = filepathurl.lastpathcomponent; // // plot whole waveform // self.audioplot.plottype = ezplottypebuffer; self.audioplot.shouldfill = yes; self.audioplot.shouldmirror = yes; // // audio data audio file // __weak typeof (self) weakself = self; [self.audiofile getwaveformdatawithcompletionblock:^(float **waveformdata, int length) { [weakself.audioplot updatebuffer:waveformdata[0] withbuffersize:length]; }]; } swift 3
func openfilewithfilepathurl(filepathurl: nsurl) { self.audiofile = ezaudiofile(url: filepathurl url!) // // plot whole waveform // self.plot.plottype = .buffer self.plot.shouldfill = true self.plot.shouldmirror = true // // audio data audio file // weak var weakself = self self.audiofile.getwaveformdata(completionblock: {(_ waveformdata: float, _ length: int) -> void in weakself?.plot.updatebuffer(waveformdata[0], withbuffersize: length) // error in line float no subscript members }) } i know float parameter have no subscript members [0]. want convert objective-c code. or here use library's swift version. note: want "ezaudioplayfileexample" in it.
float **waveformdata unsafemutablepointer. have use unsafemutablepointer in swift 3.0. can use unsafemutablepointer in swift like
unsafemutablepointer<unsafemutablepointer<float>> you use like
self.audiofile.getwaveformdata(completionblock: {(_ waveformdata: unsafemutablepointer<unsafemutablepointer<float>>, _ length: int) -> void in weakself?.plot.updatebuffer(waveformdata[0], withbuffersize: length) }) i have downloaded older version swift implementation of ezaudio , converted swift 3.0. available @ link
don't know or not may build on top of this. refer issue being reported on github page
Comments
Post a Comment