How to play video file in City sample?

Development Cinematics & Media Virtual Production
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1

Hi i’m trying to play a video file in Unreal engine City Sample

the ploblem is media player is freeze after few frames i play the video or just black screen like this

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whith this error message in log

LogElectraPlayer: Error: [000004C597BD0C00][000004C590C535D0] ReportError: "error=8 in MP4 playlist reader: code 1, “Failed to parse mp4 “file://C:/Users/Song/Videos/Captures/ICVFXProductionTest%20-%20%C5B8%B9AC%C5BC%20%C5D0%B514%D130%202022-06-09%2017-03-39.mp4” with error 7"”
LogElectraPlayer: [000004C597BD0C00][000004C590C535D0] IMediaPlayer::Close()
LogElectraPlayer: [000004C597BD0C00][000004C590C535D0] Playback stopped. Last play position 0.000
LogElectraPlayer: [000004C597BD0C00][000004C590C535D0] Electra player statistics:
OS: Windows 10 (21H2) [10.0.19044.1766]
GPU Adapter: NVIDIA GeForce RTX 2060
URL: file://C:/Users/Username/Videos/Captures/ICVFXProductionTest - 2022-06-09 17-03-39.mp4
Time after master playlist loaded: -1.000s
Time after stream playlists loaded: -1.000s
Time for initial buffering: -1.000s
Initial video stream bitrate: 0 bps
Initial buffering bandwidth bps: 0.000
Initial buffering latency: 0.000s
Time for initial preroll: -1.000s
Number of times moved forward: 0
Number of times moved backward: 0
Number of times looped: 0
Number of times rebuffered: 0
Total time spent rebuffering: 0.000s
Longest rebuffering time: 0.000s
First media timeline start: -1.000s
First media timeline end: -1.000s
Last media timeline start: -1.000s
Last media timeline end: -1.000s
Media duration: 0.000s
Play position at start: -1.000s
Play position at end: -1.000s
Number of quality upswitches: 0
Number of quality downswitches: 0
Number of drastic downswitches: 0
Bytes of video data streamed: 0
Bytes of audio data streamed: 0
Number of segments fetched across all quality levels:
Currently active playlist URL:
Currently active resolution: 0 * 0
Current state: Paused
Number of video frames dropped: 0, worst time delta 0.000 ms
Number of audio frames dropped: 0, worst time delta 0.000 ms
Last error: error=8 in MP4 playlist reader: code 1, “Failed to parse mp4 “file://C:/Users/username/Videos/Captures/ProductionTest%20-%20%C5B8%B9AC%C5BC%20%C5D0%B514%D130%202022-06-09%2017-03-39.mp4” with error 7”
Subtitles URL:
Subtitles response time: 0.000s
Subtitles last error:

these are the plunins i enabled

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image876×1261 132 KB

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image944×443 46.8 KB

is this something like City sample’s project setting things? or direct 12 thing?
when i play same video on new empty project it works fine

is there someone how to solve this problem?

2

Hi ULreal,

In the context of City Sample (uses Nanite and Lumen that requires DirectX 12?) this is a bad solution, but I’ve seen some people fix media player issues by changing Project Settings → Default RHI to DirectX 11

Fingers crossed this will be fixed in 5.1

3

Thanks for your reply Astrotronic!

but I need nanite and lumen for city scene and actually even if I use Direct 11, Video is still freeze.
I guess maybe something else is the problem

4

I think this was about resolution
I tried to play 4k videos and it failed

after converting it in to 2k(1920x1080) it played well with Electra plater