mutable_slot_ptr()

uint8_t * MayaFlux::Kakshya::VideoStreamContainer::mutable_slot_ptr

(

uint64_t

frame_index

)

Mutable pointer into m_data[0] for the decode thread to write into.

Parameters

frame_index

Absolute frame index; mapped to slot via modulo.

Returns

Pointer into the pixel vector, or nullptr if not in ring mode.

Definition at line 124 of file VideoStreamContainer.cpp.

{
    if (m_ring_capacity == 0 || frame_index >= m_total_source_frames)
        return nullptr;
 
    auto* pixels = std::get_if<std::vector<uint8_t>>(&m_data[0]);
    if (!pixels)
        return nullptr;
 
    return pixels->data() + slot_for(frame_index) * get_frame_byte_size();
}

References get_frame_byte_size(), m_data, m_ring_capacity, m_total_source_frames, and slot_for().

Referenced by MayaFlux::IO::VideoFileReader::decode_batch().

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