Given a MP4 file...
Use MP4Box to extract into VOB/SUB format
First, find the info: /Volumes/GPAC\ for\ OSX/Osmo4.app/Contents/MacOS/MP4Box -info ~/Desktop/MOVIEFILE.m4v
* Movie Info *
Timescale 90000 - Duration 00:22:36.981
4 track(s)
import slick.lifted.MappedTypeMapper | |
import java.sql.Date | |
import org.joda.time.DateTime | |
import slick.lifted.TypeMapper.DateTypeMapper | |
object DateTimeMapper { | |
implicit def date2dateTime = MappedTypeMapper.base[DateTime, Date] ( | |
dateTime => new Date(dateTime.getMillis), | |
date => new DateTime(date) |
Given a MP4 file...
Use MP4Box to extract into VOB/SUB format
First, find the info: /Volumes/GPAC\ for\ OSX/Osmo4.app/Contents/MacOS/MP4Box -info ~/Desktop/MOVIEFILE.m4v
* Movie Info *
Timescale 90000 - Duration 00:22:36.981
4 track(s)
Miles Sabin recently opened a pull request fixing the infamous SI-2712. First off, this is remarkable and, if merged, will make everyone's life enormously easier. This is a bug that a lot of people hit often without even realizing it, and they just assume that either they did something wrong or the compiler is broken in some weird way. It is especially common for users of scalaz or cats.
But that's not what I wanted to write about. What I want to write about is the exact semantics of Miles's fix, because it does impose some very specific assumptions about the way that type constructors work, and understanding those assumptions is the key to getting the most of it his fix.
For starters, here is the sort of thing that SI-2712 affects:
def foo[F[_], A](fa: F[A]): String = fa.toString