create_writer() [1/2]

std::shared_ptr< SoundFileWriter > MayaFlux::IO::IOManager::create_writer	(	const std::string &	filepath,
		uint32_t	channels,
		uint32_t	sample_rate = 48000,
		AVCodecID	codec_id = AV_CODEC_ID_NONE
	)

Construct an open SoundFileWriter the caller drives manually.

Allocates, opens, and returns a writer ready to accept write() calls. IOManager does not track this writer; the caller is responsible for calling close() when done.

Parameters

filepath	Output file path. Extension determines container format.
channels	Number of channels in all submitted data.
sample_rate	PCM sample rate in Hz.
codec_id	Encoder override; AV_CODEC_ID_NONE = container default.

Returns

Open SoundFileWriter, or nullptr if open() failed.

Definition at line 331 of file IOManager.cpp.

{
    auto writer = std::make_shared<SoundFileWriter>();
    if (!writer->open(filepath, channels, sample_rate, codec_id)) {
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "create_writer: open failed for '{}': {}", filepath, writer->last_error());
        return nullptr;
    }
 
    {
        std::lock_guard lock(m_save_tasks_mutex);
        m_writers.push_back(writer);
    }
    return writer;
}

References MayaFlux::Journal::FileIO, MayaFlux::Journal::IO, m_save_tasks_mutex, m_writers, and MF_ERROR.