added inital player

1 files changed, 75 insertions, 0 deletions

diff --git a/src/rhrdlibrary/player.go b/src/rhrdlibrary/player.go
new file mode 100644
index 0000000..8a97ed3
--- /dev/null
+++ b/src/rhrdlibrary/player.go
@@ -0,0 +1,75 @@
+//
+//  rhrdlibrary
+//
+//  The Radio Helsinki Rivendell Library
+//
+//
+//  Copyright (C) 2016 Christian Pointner <equinox@helsinki.at>
+//
+//  This file is part of rhrdlibrary.
+//
+//  rhrdlibrary is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  any later version.
+//
+//  rhrdlibrary is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with rhrdlibrary. If not, see <http://www.gnu.org/licenses/>.
+//
+
+package main
+
+import (
+	"fmt"
+	"github.com/ziutek/glib"
+	"github.com/ziutek/gst"
+	"path"
+)
+
+type Player struct {
+	pipe     *gst.Element
+	bus      *gst.Bus
+	basepath string
+}
+
+func (p *Player) onMessage(bus *gst.Bus, msg *gst.Message) {
+	switch msg.GetType() {
+	case gst.MESSAGE_EOS:
+		rhdl.Printf("EOS reached!")
+		p.pipe.SetState(gst.STATE_NULL)
+	case gst.MESSAGE_ERROR:
+		rhdl.Printf("Error: received gst error message")
+		p.pipe.SetState(gst.STATE_NULL)
+		// TODO: this crashes the program
+		// err, debug := msg.ParseError()
+		// rhdl.Printf("Error: %s (debug: %s)\n", err, debug)
+	}
+}
+
+func (p *Player) Play(cart, cut uint) (err error) {
+	filename := path.Join(p.basepath, fmt.Sprintf("%06d_%03d.wav", cart, cut))
+	rhdl.Printf("trying to play file: %s", filename)
+
+	p.pipe.SetProperty("uri", "file://"+filename)
+	p.pipe.SetState(gst.STATE_PLAYING)
+	glib.NewMainLoop(nil).Run()
+	return
+}
+
+func NewPlayer(basepath string) (p *Player, err error) {
+	p = &Player{}
+	p.basepath = path.Clean(basepath)
+
+	p.pipe = gst.ElementFactoryMake("playbin", "autoplay")
+	p.bus = p.pipe.GetBus()
+
+	p.bus.AddSignalWatch()
+	p.bus.Connect("message", (*Player).onMessage, p)
+
+	return
+}