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/**
* @file player.cpp Symbian MDA audio driver -- player
*
* Copyright (C) 2010 Creytiv.com
*/
#include <e32def.h>
#include <e32std.h>
#include <mdaaudiooutputstream.h>
#include <mda/common/audio.h>
extern "C" {
#include <re.h>
#include <baresip.h>
#include "mda.h"
#define DEBUG_MODULE "player"
#define DEBUG_LEVEL 5
#include <re_dbg.h>
}
enum {VOLUME = 100};
class mda_player;
struct auplay_st {
struct auplay *ap; /* inheritance */
mda_player *mda;
auplay_write_h *wh;
void *arg;
};
class mda_player : public MMdaAudioOutputStreamCallback, public CBase
{
public:
mda_player(struct auplay_st *st, struct auplay_prm *prm);
~mda_player();
void play();
/* from MMdaAudioOutputStreamCallback */
virtual void MaoscOpenComplete(TInt aError);
virtual void MaoscBufferCopied(TInt aError, const TDesC8& aBuffer);
virtual void MaoscPlayComplete(TInt aError);
private:
CMdaAudioOutputStream *iOutput;
TMdaAudioDataSettings iSettings;
TBool iIsReady;
TBuf8<320> iBuf;
struct auplay_st *state;
};
mda_player::mda_player(struct auplay_st *st, struct auplay_prm *prm)
:iIsReady(EFalse)
{
state = st;
iBuf.FillZ(320);
iSettings.iSampleRate = convert_srate(prm->srate);
iSettings.iChannels = convert_channels(prm->ch);
iSettings.iVolume = VOLUME;
iOutput = CMdaAudioOutputStream::NewL(*this);
iOutput->Open(&iSettings);
}
mda_player::~mda_player()
{
if (iOutput) {
iOutput->Stop();
delete iOutput;
}
}
void mda_player::play()
{
/* call write handler here */
state->wh((uint8_t *)&iBuf[0], iBuf.Length(), state->arg);
TRAPD(ret, iOutput->WriteL(iBuf));
if (KErrNone != ret) {
DEBUG_WARNING("WriteL left with %d\n", ret);
}
}
void mda_player::MaoscOpenComplete(TInt aError)
{
if (KErrNone != aError) {
iIsReady = EFalse;
DEBUG_WARNING("mda player error: %d\n", aError);
return;
}
iOutput->SetAudioPropertiesL(iSettings.iSampleRate,
iSettings.iChannels);
iOutput->SetPriority(EMdaPriorityNormal,
EMdaPriorityPreferenceTime);
iIsReady = ETrue;
play();
}
/*
* Note: In reality, this function is called approx. 1 millisecond after the
* last block was played, hence we have to generate buffer N+1 while buffer N
* is playing.
*/
void mda_player::MaoscBufferCopied(TInt aError, const TDesC8& aBuffer)
{
(void)aBuffer;
if (KErrNone != aError && KErrCancel != aError) {
DEBUG_WARNING("MaoscBufferCopied [aError=%d]\n", aError);
}
if (aError == KErrAbort) {
DEBUG_NOTICE("player aborted\n");
return;
}
play();
}
void mda_player::MaoscPlayComplete(TInt aError)
{
if (KErrNone != aError) {
DEBUG_WARNING("MaoscPlayComplete [aError=%d]\n", aError);
}
}
static void auplay_destructor(void *arg)
{
struct auplay_st *st = (struct auplay_st *)arg;
delete st->mda;
mem_deref(st->ap);
}
int mda_player_alloc(struct auplay_st **stp, struct auplay *ap,
struct auplay_prm *prm, const char *device,
auplay_write_h *wh, void *arg)
{
struct auplay_st *st;
int err = 0;
(void)device;
st = (struct auplay_st *)mem_zalloc(sizeof(*st), auplay_destructor);
if (!st)
return ENOMEM;
st->ap = (struct auplay *)mem_ref(ap);
st->wh = wh;
st->arg = arg;
st->mda = new mda_player(st, prm);
if (!st->mda)
err = ENOMEM;
if (err)
mem_deref(st);
else
*stp = st;
return err;
}
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