VideoStream.scala

package controllers

import play.api._
import play.api.mvc._
import java.io.File
import java.io.FileInputStream
import play.api.libs.iteratee.Enumerator

object VideoStream extends Controller {

  def stream = Action { implicit request =>

    val file = new File("D:/workspace/portal/public/videos/test.mp4")

    request.headers.get(RANGE) match {
      case Some(value) => {
        val range: (Long, Long) = value.substring("bytes=".length).split("-") match {
          case x if x.length == 1 => (x.head.toLong, file.length() - 1)
          case x => (x(0).toLong, x(1).toLong)
        }

        range match {
          case (start, end) =>
            val stream = new FileInputStream(file)
            stream.skip(start)

            SimpleResult(
              header = ResponseHeader(PARTIAL_CONTENT,
                Map(
                  CONNECTION -> "keep-alive",
                  ACCEPT_RANGES -> "bytes",
                  CONTENT_RANGE -> "bytes %d-%d/%d".format(start, end, file.length()),
                  CONTENT_LENGTH -> (end - start + 1).toString,
                  CONTENT_TYPE -> play.api.libs.MimeTypes.forExtension("mp4").get)),
              body = Enumerator.fromStream(stream))
        }
      }
      case None => Ok.sendFile(file)
    }
  }

}