Browser error when running in Lambda

[fleet scarab]

My lambda throws from time to time an error : The browser threw an error while playing the video... Code 4 or The browser threw an error while playing the video Code 2 - PIPELINE_ERROR_READ: FFmpegDemuxer: data source error.
I was able to render the same files locally , tried switching to OffthreadVideo and increasing the timeout but it created a different issue. what's the best practice here. (files are regular MP4 H264 files)

[twin whale]

I assume this happened because your local machine has a GPU, whereas lambda is pure CPU.
pure cpu is bad at rendering videos, so you want to use <OffthreadVideo /> which converts videos into a sequence of images and therefore rendered better at CPU (lambda).

which issue did you have with <OffthreadVideo />?

fyi: https://www.remotion.dev/docs/video-vs-offthreadvideo

[fleet scarab]

thanks @twin whale . when switching to OffthreadVideo I got render timeouts even when increasing the the timeout paraemter to the lambda quite a bit

[brittle atlas]

can you post the error logs from the lambda ?

[fleet scarab]

@brittle atlas you mean after I switched to OffthreadVideo?

[brittle atlas]

y

[fleet scarab]

@brittle atlas Error: A delayRender() "Loading <Img> with src=http://localhost:3001/proxy?src=[fileUrl]&time=15.633333333333333&transparent=false" was called but not cleared after 148000ms

file is about 27MB

[brittle atlas]

well that's beyond my understanding
no cors issue ?

[fleet scarab]

@brittle atlas nope. I might run the same video with the same props again and everything will be fine