create_writer() [2/2]

std::shared_ptr< VideoFileWriter > MayaFlux::IO::IOManager::create_writer	(	const std::string &	filepath,
		uint32_t	width,
		uint32_t	height,
		double	frame_rate,
		AVPixelFormat	src_pixel_format,
		AVCodecID	codec_id = AV_CODEC_ID_NONE
	)

Construct an open VideoFileWriter the caller drives manually.

Allocates and opens the writer. IOManager does not track this writer; the caller is responsible for calling close() or stop_recording() when done.

Parameters

filepath	Output file path. Extension determines container.
width	Frame width in pixels.
height	Frame height in pixels.
frame_rate	Average frame rate in frames per second.
src_pixel_format	AVPixelFormat of submitted pixel data.
codec_id	Encoder override; AV_CODEC_ID_NONE = container default.

Returns

Open VideoFileWriter, or nullptr if open() failed.

Definition at line 464 of file IOManager.cpp.

{
    auto writer = std::make_shared<VideoFileWriter>();
    if (!writer->open(filepath, width, height, frame_rate, src_pixel_format, codec_id)) {
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "create_writer: open failed for '{}': {}", filepath, writer->last_error());
        return nullptr;
    }
    return writer;
}

References MayaFlux::Journal::FileIO, MayaFlux::Journal::IO, MF_ERROR, and width.