Electra media player plugin issue

Development Cinematics & Media
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1

Electra media player (with electra hap codec) in UE 5.4 working with hap worse than wmf player with hap codec plugin - bad seeking (really big delay), can’t open big files (UE 5.4, player freezes after this error):

LogElectraPlayer: Most recent log messages:
0.000: Opening stream
0.025: MP4 parser: Invalid filler data size of 0xde040044 to read at offset 0x5c5387914 in box 0x61766335 (size 0xde04004c, offset 0x5c538790c, dataoffset 0x5c5387914)
0.042: Playback paused
0.042: Error: error=8 in MP4 playlist reader: code 1, “Failed to parse mp4 “file://x:/XXX/YY_10K_HAP.mov” with error 8”
0.042: Stopped

After this error, I have to restart the Unreal editor to make the Electra media player work properly again.

2

Does anyone know, can I use Electra media player for mp4 files and wmfPlayer for mov files at one application?

3

Seems can not, Electra registering as Player Factory for Media Module.

For Electra media player developers: make your player work correctly with HAP movies, please.

4

I see, that in current state of UE 5.5 in github this trouble with big HAP movies will be fixed.