enable_circular_buffer()

void MayaFlux::Kakshya::DynamicVideoStream::enable_circular_buffer

(

uint64_t

capacity

)

Keep only the most recent capacity frames.

Allocates the ring and discards any frames already held, so call it before appending. Use is_ring_mode and get_ring_capacity to query it.

Parameters

capacity

Number of frames to keep.

Definition at line 131 of file DynamicVideoStream.cpp.

{
    if (capacity == 0 || capacity > UINT32_MAX || m_width == 0 || m_height == 0) {
        MF_ERROR(Journal::Component::Kakshya, Journal::Context::Configuration,
            "DynamicVideoStream::enable_circular_buffer needs a capacity between 1 and {} and a non-empty frame size",
            UINT32_MAX);
        return;
    }
 
    setup_ring(capacity, static_cast<uint32_t>(capacity), m_width, m_height, m_format, m_frame_rate, 0);
 
    m_total_source_frames = std::numeric_limits<uint64_t>::max();
    m_write_head = 0;
    publish_frame_count();
}

References MayaFlux::Journal::Configuration, MayaFlux::Journal::Kakshya, MayaFlux::Kakshya::VideoStreamContainer::m_format, MayaFlux::Kakshya::VideoStreamContainer::m_frame_rate, MayaFlux::Kakshya::VideoStreamContainer::m_height, MayaFlux::Kakshya::VideoStreamContainer::m_total_source_frames, MayaFlux::Kakshya::VideoStreamContainer::m_width, m_write_head, MF_ERROR, publish_frame_count(), and MayaFlux::Kakshya::VideoStreamContainer::setup_ring().

Referenced by clear(), and DynamicVideoStream().

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