MP4 Transcoding Error: Invalid Data Found When Processing Input

[aliassan]

I've noticed if I try to stream an MP4 file to DASH using ffmpeg-worker-dash.js I get the following error:

/work/stream1: Invalid data found when processing input

However if I use WebM it transcodes successfully without the error, does this have to do with MP4 not being enabled by default? If so how to enable?

[aliassan]

I've tried the video file, it works fine, I've also tried different MP4 video files and they report the same error. If I convert the video to WebM it then works fine. I'm using FFmpeg version n5.1, the Emscripten build from the davedoesdev/ffmpeg.js repository. This is the command I'm trying to run:

worker.postMessage({
    type: "run",
    arguments: [
        '-re', '-i', '/work/stream1', '-map', '0', '-map', '0', '-map', '0', '-c:a', 'aac', '-c:v', 'libx264',
        '-b:v:0', '800k', '-b:v:1', '300k', '-s:v:1', '320x170', /*'-profile:v:1', 'baseline',
        '-profile:v:0', 'main',*/ '-bf', '1', '-keyint_min', '120', '-g', '120', /*'-sc_threshold', '0',
        '-b_strategy', '0',*/ '-ar:a:1', '22050', '-use_timeline', '1', '-use_template', '0', 
        '-adaptation_sets', "id=0,streams=v id=1,streams=a", '-f', 'dash'
        , '/outbound/out.mpd'
    ],
    MEMFS: [{name: "stream1"}, {name: "stream2"}]
}); 

It's supplied with data like so:

worker.postMessage({
    type: "stream-data",
    name: "stream1",
    data: testData.buffer
}, [testData.buffer])

Where testData.buffer happens to be an ArrayBuffer of the video content. The above works with WebM.