Error when using filters

[davthedev]

Attempting a simple filter to convert pixel format, there is an error when calling the filter method on the filterer.

Unexpected N-API status not OK in file ../src/beamcoder_util.cc at line 149 value 10

Simultaneously, the JS code receives a TypeError: Cannot convert undefined or null to object error.

Can be fixed by updating beamcoder C++ sources by a newer version. I replaced all C++ files from the src directory by those from beamcoder 0.6.3 and the situation was resolved.
I was not sure about using newer versions due to FFmpeg dependency version upgrades, which would require rebuilding the static libraries.

Source code of the situation leading to the error:

    // dm is an already instantiated demuxer
    let packet = await dm.read()

    let dec = beamcoder.decoder({ demuxer: dm, stream_index: 0 })
    let decResult = await dec.decode(packet)
    if (decResult.frames.length === 0)
        decResult = await dec.flush()

    let v_filterer = await beamcoder.filterer({
        filterType: 'video',
        inputParams: [
            {
                width: dec.width,
                height: dec.height,
                pixelFormat: dec.pix_fmt,
                timeBase: dec.time_base,
                pixelAspect: dec.sample_aspect_ratio,
            }
        ],
        outputParams: [
            {
                pixelFormat: 'rgb24'
            }
        ],
        filterSpec: 'null', // we only want to convert pixel format
    })
    
    // This call triggers the error
    let filtered = await v_filterer.filter(decResult.frames)`

`