set_value_at()

void MayaFlux::Kakshya::VideoStreamContainer::set_value_at ( const std::vector< uint64_t > &  coordinates, double  value  )

overridevirtual

Set a single value at the specified coordinates.

Parameters

coordinates	N-dimensional coordinates
value	Value to set

Implements MayaFlux::Kakshya::NDDataContainer.

Definition at line 246 of file VideoStreamContainer.cpp.

{
    if (coordinates.size() < 4 || m_data.empty())
        return;
 
    auto* pixels = std::get_if<std::vector<uint8_t>>(&m_data[0]);
    if (!pixels)
        return;
 
    const uint64_t frame = coordinates[0];
    const uint64_t y = coordinates[1];
    const uint64_t x = coordinates[2];
    const uint64_t c = coordinates[3];
 
    if (frame >= m_num_frames || y >= m_height || x >= m_width || c >= m_channels)
        return;
 
    const size_t idx = (frame * m_height * m_width * m_channels)
        + (y * m_width * m_channels)
        + (x * m_channels)
        + c;
 
    if (idx >= pixels->size())
        return;
 
    (*pixels)[idx] = static_cast<uint8_t>(std::clamp(value * 255.0, 0.0, 255.0));
}

References m_channels, m_data, m_height, m_num_frames, and m_width.