timecode 0.4.0

This library is a pure Dart implementation of the SMPTE timecode specification. It is inspired by the pytimecode library by Joshua Banton and the website of David Heidelberger.

example/timecode_example.dart

import 'package:timecode/timecode.dart';

void main() {
  // var fps = TimecodeFramerate(29.97);
  // var testStrings = {
  //   '00:00:59;29': 1799,
  //   '00:01:00;02': 1800 * 1,
  //   '00:02:00;04': 1800 * 2,
  //   '00:03:00;06': 1800 * 3,
  //   '00:04:00;08': 1800 * 4,
  //   '00:05:00;10': 1800 * 5,
  //   '00:06:00;12': 1800 * 6,
  //   '00:07:00;14': 1800 * 7,
  //   '00:08:00;16': 1800 * 8,
  //   '00:09:00;18': 1800 * 9,
  //   '00:10:00;00': 17982,
  //   '01:10:00;00': 125874,
  // };
  // for (var tc in testStrings.keys) {
  //   var frame = testStrings[tc]!;
  //   var t1 = Timecode.atTimecode(tc, framerate: fps);
  //   print('$tc - $t1 - ${t1.frameCount} - $frame');
  //   var t2 = Timecode(framerate: fps, startFrames: frame);
  //   print('$tc - $t1 - ${t1.frameCount} - $frame');
  //   print(t1 == t2);
  // }

  var timecode = Timecode.atTimecode('00:00:59:00', framerate: TimecodeFramerate(29.97, forceNonDropFrame: true));
  print('$timecode - ${timecode.frameCount}');
  for (var i = 0; i < 10; i++) {
    timecode.next();
    print('$timecode - ${timecode.frameCount}');
  }

  timecode = Timecode.atTimecode('00:01:00;02', framerate: TimecodeFramerate(29.97, forceNonDropFrame: false));
  print('$timecode - ${timecode.frameCount}');
  for (var i = 0; i < 10; i++) {
    timecode.next();
    print('$timecode - ${timecode.frameCount}');
  }

  // print(Timecode.atSeconds(0, framerate: fps)); // -> 00:00:00;00
  // print(Timecode.atSeconds(1, framerate: fps)); // -> 00:00:00;29
  // print(Timecode.atSeconds(10, framerate: fps)); // -> 00:00:09;29
}