ExMP4.Helper (MP4 Reader and Writer v0.11.0)
View SourceHelper functions.
Summary
Functions
Format a millisecond
duration as H:MM:ss.mmm
Convert duration between different timescales.
Types
Functions
@spec format_duration(non_neg_integer()) :: String.t()
Format a millisecond
duration as H:MM:ss.mmm
iex> ExMP4.Helper.format_duration(100)
"0:00:00.100"
iex> ExMP4.Helper.format_duration(165_469_850)
"45:57:49.850"
@spec timescalify(Ratio.t() | integer(), timescale(), timescale(), :round | :exact) :: integer() | float()
Convert duration between different timescales.
iex> ExMP4.Helper.timescalify(1900, 90000, :millisecond)
21
iex> ExMP4.Helper.timescalify(21, :millisecond, 90_000)
1890
iex> ExMP4.Helper.timescalify(10, Ratio.new(30_000, 1001), Ratio.new(40, 2))
7
iex> ExMP4.Helper.timescalify(1600, :millisecond, :second)
2
iex> ExMP4.Helper.timescalify(15, :nanosecond, :nanosecond)
15
iex> ExMP4.Helper.timescalify(15000, Ratio.new(30_000, 1001), :second, :exact)
500.5