get_value_impl()

void MayaFlux::Kakshya::VideoStreamContainer::get_value_impl ( const std::vector< uint64_t > &  coords, void *  out, const std::type_info &  type  ) const

overrideprotectedvirtual

Type-erased single-element read.

Implementations copy the native element at coords into out if type matches their native type, otherwise no-op. out points to a caller-owned buffer of exactly sizeof(native type) bytes.

Implements MayaFlux::Kakshya::NDDataContainer.

Definition at line 634 of file VideoStreamContainer.cpp.

{
    if (type != typeid(uint8_t) || coords.size() < 4)
        return;
 
    const uint64_t frame = coords[0];
    const uint64_t y = coords[1];
    const uint64_t x = coords[2];
    const uint64_t c = coords[3];
 
    if (frame >= m_num_frames || y >= m_height || x >= m_width || c >= m_channels)
        return;
 
    auto pixels = get_frame_pixels(frame);
    if (pixels.empty())
        return;
 
    const size_t idx = (y * m_width + x) * m_channels + c;
    if (idx >= pixels.size())
        return;
 
    *static_cast<uint8_t*>(out) = pixels[idx];
}

References get_frame_pixels(), m_channels, m_height, m_num_frames, m_width, and pixels.

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