get_channel_frames() [1/2]

void MayaFlux::Kakshya::DynamicSoundStream::get_channel_frames	(	std::span< double >	output,
		uint32_t	channel,
		uint64_t	start_frame
	)		const

Definition at line 247 of file DynamicSoundStream.cpp.

{
    if (channel >= get_num_channels() || output.empty())
        return;
 
    const uint64_t num_frames = output.size();
 
    if (m_structure.organization == OrganizationStrategy::INTERLEAVED) {
        seqlock_read_void(m_data_lock, 8, [&] {
            if (m_data.empty()) {
                std::ranges::fill(output, 0.0);
                return;
            }
            const auto& interleaved_data = std::get<std::vector<double>>(m_data[0]);
            const uint32_t num_channels = get_num_channels();
            for (uint64_t frame = 0; frame < num_frames; ++frame) {
                uint64_t idx = (start_frame + frame) * num_channels + channel;
                output[frame] = (idx < interleaved_data.size()) ? interleaved_data[idx] : 0.0;
            }
        });
    } else {
        seqlock_read_void(m_data_lock, 8, [&] {
            if (channel >= m_data.size()) {
                std::ranges::fill(output, 0.0);
                return;
            }
            const auto& channel_data = std::get<std::vector<double>>(m_data[channel]);
            for (uint64_t frame = 0; frame < num_frames; ++frame) {
                uint64_t idx = start_frame + frame;
                output[frame] = (idx < channel_data.size()) ? channel_data[idx] : 0.0;
            }
        });
    }
}

References MayaFlux::Kakshya::SoundStreamContainer::channel_data(), MayaFlux::Kakshya::SoundStreamContainer::get_num_channels(), MayaFlux::Kakshya::INTERLEAVED, MayaFlux::Kakshya::SoundStreamContainer::m_data, MayaFlux::Kakshya::SoundStreamContainer::m_data_lock, MayaFlux::Kakshya::SoundStreamContainer::m_structure, MayaFlux::Kakshya::ContainerDataStructure::organization, and output.

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