mutable_frame_ptr()

uint8_t * MayaFlux::Kakshya::CameraContainer::mutable_frame_ptr

(

)

Mutable pointer into m_data[0] for the caller to write decoded pixels.

Mirrors VideoStreamContainer::mutable_slot_ptr() for ring mode, but operates on the single flat-mode frame. The caller (CameraReader) writes width * height * channels bytes at this address, then calls mark_ready_for_processing(true).

Returns

Pointer to the start of the frame pixel buffer, or nullptr if the container is not properly initialised.

Definition at line 27 of file CameraContainer.cpp.

{
    if (m_data.empty())
        return nullptr;
 
    auto [ptr, bytes] = variant_bytes_mutable(m_data[0]);
    if (!ptr || bytes < get_frame_byte_size())
        return nullptr;
 
    return ptr;
}

References MayaFlux::Kakshya::VideoStreamContainer::get_frame_byte_size(), MayaFlux::Kakshya::VideoStreamContainer::m_data, ptr, and MayaFlux::Kakshya::variant_bytes_mutable().

Here is the call graph for this function: