C++ (Cpp) stereo16_from_stereopcm16示例

示例#1

文件： videovisual.cpp 项目： garybuhrmaster/mythtv

// caller holds lock
void VideoVisual::add(const void *b, unsigned long b_len, unsigned long w, int c,
                      int p)
{
    if (!m_disabled && m_nodes.size() > 500)
    {
        LOG(VB_GENERAL, LOG_ERR, DESC +
            QString("Over 500 nodes buffered - disabling visualiser."));
        DeleteNodes();
        m_disabled = true;
    }

    if (m_disabled)
        return;

    long len = b_len, cnt;
    short *l = nullptr, *r = nullptr;

    len /= c;
    len /= (p / 8);

    if (len > 512)
        len = 512;

    cnt = len;

    if (c == 2)
    {
        l = new short[len];
        r = new short[len];

        if (p == 8)
            stereo16_from_stereopcm8(l, r, (uchar *) b, cnt);
        else if (p == 16)
            stereo16_from_stereopcm16(l, r, (short *) b, cnt);
        else if (p == 32)
            stereo16_from_stereofloat32(l, r, reinterpret_cast<const float * >(b), cnt);
        else
            len = 0;
    }
    else if (c == 1)
    {
        l = new short[len];

        if (p == 8)
            mono16_from_monopcm8(l, (uchar *) b, cnt);
        else if (p == 16)
            mono16_from_monopcm16(l, (short *) b, cnt);
        else if (p == 32)
            mono16_from_monofloat32(l, reinterpret_cast<const float * >(b), cnt);
        else
            len = 0;
    }
    else
        len = 0;

    m_nodes.append(new VisualNode(l, r, len, w));
}

示例#2

文件： videovisual.cpp 项目： DocOnDev/mythtv

// caller holds lock
void VideoVisual::add(uchar *b, unsigned long b_len, unsigned long w, int c, int p)
{
    if (!m_disabled && m_nodes.size() > 500)
    {
        VERBOSE(VB_GENERAL, DESC +
            QString("Over 500 nodes buffered - disabling visualiser."));
        DeleteNodes();
        m_disabled = true;
    }

    if (m_disabled)
        return;

    long len = b_len, cnt;
    short *l = 0, *r = 0;

    len /= c;
    len /= (p / 8);

    if (len > 512)
        len = 512;

    cnt = len;

    if (c == 2)
    {
        l = new short[len];
        r = new short[len];

        if (p == 8)
            stereo16_from_stereopcm8(l, r, b, cnt);
        else if (p == 16)
            stereo16_from_stereopcm16(l, r, (short *) b, cnt);
    }
    else if (c == 1)
    {
        l = new short[len];

        if (p == 8)
            mono16_from_monopcm8(l, b, cnt);
        else if (p == 16)
            mono16_from_monopcm16(l, (short *) b, cnt);
    }
    else
        len = 0;

    m_nodes.append(new VisualNode(l, r, len, w));
}