TMediaCore_FFmpeg.FindStreamIDs() fails to find video stream if artwork is embedded as stream 0

[bohning]

When embedding artwork into an mp4 file via the Python mutagen module, the artwork is added as stream 0, shifting the video track to stream 1.

ffprobe mp4_without_embedded_artwork.mp4:

Stream #0:0[0x1](und): Video: vp9 (Profile 0) (vp09 / 0x39307076), yuv420p(tv, bt709), 1920x1080, 1730 kb/s, 59.95 fps, 59.94 tbr, 1k tbn (default)

ffprobe mp4_with_embedded_artwork.mp4:

Stream #0:0[0x0]: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 1920x1920 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn (attached pic)
Stream #0:1[0x1](und): Video: vp9 (Profile 0) (vp09 / 0x39307076), yuv420p(tv, bt709), 1920x1080, 1730 kb/s, 59.95 fps, 59.94 tbr, 1k tbn (default)

The resulting file does not work with USDX, presumably because FindStreamIDs() fails to correctly identify the video stream ID.

[s09bQ5]

And where does this play correctly?

[bohning]

In VLC for example.