1. re-encode the whole thing
2. re-encode just the first GOP
3. start a bit early or late
4. include the full first GOP but use an edit list to instruct the player to skip to the timestamp of interest
1. re-encode the whole thing
2. re-encode just the first GOP
3. start a bit early or late
4. include the full first GOP but use an edit list to instruct the player to skip to the timestamp of interest