Error "Failed to initialize the ffmpeg demuxer" when send video as Part.from_uri

[rudy_nc]

Code

model = GenerativeModel("gemini-1.5-flash-002")
video_part = Part.from_uri(
"url-to-mp4-file.mp4",
mime_type="video/mp4",
)
result = model.generate_content(["What is shown in this video?", video_part])

ERROR

{
	"name": "InvalidArgument",
	"message": "400 Failed to initialize the ffmpeg demuxer, please make sure 1. Vertex's P4SA has permission to access input data; 2. video URL is valid; 3. video data is valid.",
	"stack": "---------------------------------------------------------------------------
}

It seems it only appear on some mp4 file. any idea how to resolve this? 

[figaroserg]

i've dot the same problem on certain videos, while the same videos work ok in aistudio.

Did you figure out solution or workaround?

[rudy_nc]

the solution was to upload the file to gcp first. wait until it finished PROCESSING . then use the file as input to model.generate_content([myfile, prompt])