open()

bool MayaFlux::IO::SoundFileReader::open ( const std::string &  filepath, FileReadOptions  options = FileReadOptions::ALL  )

overridevirtual

Open an audio file for reading.

Parameters

filepath	Path to the file.
options	File read options.

Returns

True if the file was opened successfully.

Implements MayaFlux::IO::FileReader.

Definition at line 84 of file SoundFileReader.cpp.

{
    std::unique_lock<std::shared_mutex> lock(m_context_mutex);
 
    m_demux.reset();
    m_audio.reset();
    m_current_frame_position = 0;
    {
        std::lock_guard<std::mutex> ml(m_metadata_mutex);
        m_cached_metadata.reset();
        m_cached_regions.clear();
    }
    clear_error();
 
    m_filepath = filepath;
    m_options = options;
 
    auto demux = std::make_shared<FFmpegDemuxContext>();
    if (!demux->open(filepath)) {
        set_error(demux->last_error());
        return false;
    }
 
    bool planar = (m_audio_options & AudioReadOptions::DEINTERLEAVE) != AudioReadOptions::NONE;
    auto audio = std::make_shared<AudioStreamContext>();
    if (!audio->open(*demux, planar, m_target_sample_rate)) {
        set_error(audio->last_error());
        return false;
    }
 
    m_demux = std::move(demux);
    m_audio = std::move(audio);
 
    if ((options & FileReadOptions::EXTRACT_METADATA) != FileReadOptions::NONE)
        build_metadata(m_demux, m_audio);
 
    if ((options & FileReadOptions::EXTRACT_REGIONS) != FileReadOptions::NONE)
        build_regions(m_demux, m_audio);
 
    return true;
}

References build_metadata(), build_regions(), clear_error(), MayaFlux::IO::DEINTERLEAVE, MayaFlux::IO::EXTRACT_METADATA, MayaFlux::IO::EXTRACT_REGIONS, m_audio, m_audio_options, m_cached_metadata, m_cached_regions, m_context_mutex, m_current_frame_position, m_demux, m_filepath, m_metadata_mutex, m_options, m_target_sample_rate, MayaFlux::IO::NONE, and set_error().

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