hughfenghen
commented
4 days ago Please use the MP4Box tool at https://gpac.github.io/mp4box.js/test/filereader.html to check if your video file is intact, and make sure the first video frame is a keyframe (is_sync). The mentioned errors and warnings are unrelated to the canvas resolution.
I encountered "First sample not idr frame" warning in console. And I believe it's because I am fetching a 9:16 iphone video as the MP4Clip.
I tested with one 9:16 video and it gave the "First sample not idr frame" error.
I tested with a second 9:16 different video and it couldn't add to timeline (using video editor demo) and gave this error "Uncaught (in promise) Error: MP4Clip stream is done, but not emit ready" in console.
It's weird because I tried a 3rd 9:16 video and it successfully added to timeline and everything was working fine with it.
Further testing, I think it might be about the video's resolution and the canvas size? Maybe the video resolution > one of canvas dimensions. But not sure.
I'm not sure what causes it. It also happens to 16:9 videos.