/* Copyright (C) 2015 J.F.Dockes
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SONGCASTSENDER_H_INCLUDED_
#define _SONGCASTSENDER_H_INCLUDED_
#include <OpenHome/Os.h>
#ifdef WITH_OHBUILD
#include "OhmSender.h"
#else
#include <OpenHome/OhmSender.h>
#endif
#include "audioencoder.h"
#include "audioreader.h"
#include "log.h"
using namespace std;
using namespace OpenHome;
using namespace OpenHome::Av;
class SongcastSender {
public:
static const TUint kPeriodMs = 10;
static const TUint kSpeedNormal = 100;
static const TUint kSpeedMin = 75;
static const TUint kSpeedMax = 150;
static const TUint kMaxPacketBytes = 4096;
public:
SongcastSender(Environment& aEnv, OhmSender* aSender,
OhmSenderDriver* driver, const Brx& aUri,
AudioReader* audio, const string& codec, bool paced);
bool Start(TBool aEnabled);
void Play();
void PlayPause();
void Stop();
void Restart();
~SongcastSender();
void busyRdWr();
TBool Paused();
const string CodecName();
private:
void CalculatePacketBytes();
void TimerExpired();
private:
Environment& iEnv;
OhmSender* iSender;
OhmSenderDriver* iDriver;
Bws<OhmSender::kMaxTrackUriBytes> iUri;
AudioReader *m_audio;
AudioEncoder *m_encoder;
Timer iTimer;
Mutex iMutex;
TBool iPaused;
TUint iSpeed; // percent, 100%=normal
TUint iIndex; // byte offset read position in source data
TUint iPacketBytes; // how many bytes of audio in each packet
TUint iPacketFrames; // how many audio frames in each packet
TUint iPacketTime; // how much audio time in each packet, uS
TUint64 iLastTimeUs; // last time stamp from system
TInt32 iTimeOffsetUs; // running offset in usec from ideal time
// <0 means sender is behind
// >0 means sender is ahead
TBool iVerbose;
TBool iPaced;
};
#endif /* _SONGCASTSENDER_H_INCLUDED_ */