Upload sequence
1
Open Bin and choose upload
Select one or more files with clear filenames. Avoid renaming extensions without changing the actual container format.
2
Wait for transfer and processing
Large video or lossless audio can take time. Keep the tab open and avoid submitting the same file repeatedly.
3
Confirm the Bin entry
Check the thumbnail, media kind, duration or dimensions, and filename.
4
Insert at an intentional frame
Move the playhead first, then add the uploaded asset as a timeline layer.
5
Test decoding
Seek and play the inserted layer. Upload success and browser decode success are separate stages.
File selection guidance
- Prefer browser-friendly video and audio encodings for responsive previews.
- Use source dimensions close to the expected composition use; huge still images consume more decoding and texture memory.
- Preserve transparency only when the chosen image format and source actually contain an alpha channel.
- Use a short ASCII filename when diagnosing a problematic upload.
Technical stages
The upload input advertises broad
image/*, video/*, and audio/* categories. Actual success still depends on backend ingestion and browser codec support; category acceptance is not a promise that every container-codec combination will preview.