register_video_reader()

uint64_t MayaFlux::IO::IOManager::register_video_reader

(

std::shared_ptr< VideoFileReader >

reader

)

Assign a globally unique reader_id and take ownership of a reader.

Called internally by load_video(). Advanced users who open a VideoFileReader manually can call this before load_into_container() to participate in managed dispatch and lifetime tracking.

Calls reader->set_reader_id(id) before returning.

Parameters

reader

Fully-opened VideoFileReader.

Returns

Globally unique reader_id assigned to this reader.

Definition at line 196 of file IOManager.cpp.

{
    if (!reader) {
        MF_WARN(Journal::Component::Core, Journal::Context::FileIO,
            "IOManager::register_video_reader called with null reader");
        return 0;
    }
 
    const uint64_t id = m_next_reader_id.fetch_add(1, std::memory_order_relaxed);
    reader->set_reader_id(id);
 
    {
        std::unique_lock lock(m_readers_mutex);
        m_video_readers.emplace(id, std::move(reader));
    }
 
    MF_DEBUG(Journal::Component::Core, Journal::Context::FileIO,
        "IOManager: registered VideoFileReader id={}", id);
 
    return id;
}

References MayaFlux::Journal::Core, MayaFlux::Journal::FileIO, m_next_reader_id, m_readers_mutex, m_video_readers, MF_DEBUG, and MF_WARN.

Referenced by load_video().

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