Exemplo n.º 1
0
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"));
}
Exemplo n.º 2
0
// 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();
}
Exemplo n.º 3
0
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"));
}