| --- |
| license: other |
| tags: |
| - video-captioning |
| - temporal-grounding |
| - sft |
| - timestamping |
| --- |
| |
| # AVTime |
|
|
| `avtime-longvale-pct100-v1` is a restartable archival release of full-video temporal-event |
| training data. It contains all available AVTime completed episodes and the |
| LongVALE training split, each rewritten as one complete original video and one |
| compact JSON answer. The same data can be used for SFT or as shared training |
| data in RL workflows. |
|
|
| ## Label format |
|
|
| Each row in `train.jsonl` has exactly one `videos` entry and three messages. |
| The assistant target is: |
|
|
| ```json |
| {"events":[{"start_pct":0,"end_pct":12,"caption":"..."}]} |
| ``` |
|
|
| `start_pct` and `end_pct` are inclusive integer buckets from 0 through 99, |
| relative to the full original video duration. Every event has only |
| `start_pct`, `end_pct`, and `caption`. |
|
|
| ## Contents |
|
|
| - 57,217 training rows |
| - 57,217 unique original videos |
| - 2173.31 GiB of original media before compression |
| - 1,294 independently extractable media archives |
| - 1 unusually large original video(s) stored as byte-identical parts |
|
|
| The release intentionally excludes historical event-window helper clips. They |
| are redundant once each training episode is represented by one complete video. |
|
|
| ## Restore |
|
|
| First extract the metadata archive, then extract every media archive into the |
| same destination: |
|
|
| ```bash |
| for archive in archives/*.tar.zst; do |
| zstd -t "$archive" |
| tar -I zstd -xf "$archive" |
| done |
| python restore_split_media.py --root . |
| ``` |
|
|
| After extraction, `train.jsonl` references media with package-relative paths |
| such as `media/longvale/...` and `media/avtime/...`. The restore command is a |
| no-op for normal files and concatenates only the exceptional `.parts` videos |
| without transcoding or changing their bytes. |
|
|
| ## Source and redistribution notice |
|
|
| This release is derived from AVTime and LongVALE training data. It preserves no |
| extra license grant for original video assets. It is public at the release |
| owner's direction; users are responsible for complying with applicable |
| upstream redistribution terms. |
|
|
