FreeSurround::FreeSurround(uint srate, bool moviemode, SurroundMode smode) :
srate(srate),
open_(false),
initialized_(false),
bufs(NULL),
decoder(0),
in_count(0),
out_count(0),
processed(true),
processed_size(0),
surround_mode(smode),
latency_frames(0)
{
LOG(VB_AUDIO, LOG_DEBUG,
QString("FreeSurround::FreeSurround rate %1 moviemode %2")
.arg(srate).arg(moviemode));
if (moviemode)
{
params.phasemode = 1;
params.center_width = 25;
params.dimension = 0.5;
}
else
{
params.center_width = 65;
params.dimension = 0.3;
}
switch (surround_mode)
{
case SurroundModeActiveSimple:
params.steering = 0;
break;
case SurroundModeActiveLinear:
params.steering = 1;
latency_frames = block_size/2;
break;
default:
break;
}
bufs = (buffers*)bp.acquire((void*)1);
open();
#ifdef SPEAKERTEST
channel_select++;
if (channel_select>=6)
channel_select = 0;
LOG(VB_AUDIO, LOG_DEBUG,
QString("FreeSurround::FreeSurround channel_select %1")
.arg(channel_select));
#endif
LOG(VB_AUDIO, LOG_DEBUG, QString("FreeSurround::FreeSurround done"));
}
// load the lib and initialize the interface
void FreeSurround::open()
{
if (!decoder)
{
decoder = (fsurround_decoder*)dp.acquire((void*)1);
decoder->flush();
if (bufs)
bufs->clear();
decoder->sample_rate(srate);
}
SetParams();
}
FreeSurround::FreeSurround(uint srate, bool moviemode, SurroundMode smode) :
srate(srate),
open_(false),
initialized_(false),
//bufs(NULL),
int16bufs(NULL),
decoder(0),
in_count(0),
out_count(0),
processed(true),
surround_mode(smode)
{
VERBOSE(QString("FreeSurround::FreeSurround rate %1 moviemode %2").arg(srate).arg(moviemode));
if (moviemode)
{
params.phasemode = 1;
params.center_width = 0;
params.gain = 1.0;
}
else
{
params.center_width = 70;
// for 50, gain should be about 1.9, c/lr about 2.7
// for 70, gain should be about 3.1, c/lr about 1.5
params.gain = 3.1;
}
switch (surround_mode)
{
case SurroundModeActiveSimple:
params.steering = 0;
//bufs = (buffers*)bp.acquire((void*)1);
break;
case SurroundModeActiveLinear:
params.steering = 1;
//bufs = (buffers*)bp.acquire((void*)1);
break;
default:
//int16bufs = (int16buffers*)bp16.acquire((void*)1);
break;
}
int16bufs = (int16buffers*)bp16.acquire((void*)1);
open();
#ifdef SPEAKERTEST
channel_select++;
if (channel_select>=6)
channel_select = 0;
VERBOSE(QString("FreeSurround::FreeSurround channel_select %1").arg(channel_select));
#endif
VERBOSE(QString("FreeSurround::FreeSurround done"));
}