Method Shift

src/FrameMapper.h:140–153

		}

		void Shift(int64_t samples, openshot::Fraction fps, int sample_rate, int channels, bool right_side) {
			// Extend each side of the range (to SHIFT the range) by adding (or subtracting) from both sides
			// For example:   [	range	 ]
			// For example:	   [	range	 ]
			if (right_side) {
				// SHIFT both sides to the right
				Extend(samples, fps, sample_rate, channels, true);
				Shrink(samples, fps, sample_rate, channels, false);
			} else {
				// SHIFT both sides to the left
				Extend(samples, fps, sample_rate, channels, false);
				Shrink(samples, fps, sample_rate, channels, true);
			}
		}

		int total;
	};