Rank: Member
Groups: Registered
Joined: 4/24/2020(UTC) Posts: 10 Location: Garden Grove Thanks: 3 times
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I have a question. I have a MP4 File that im sharing and i have about 4 locations where i would like to bookmark on the video. At certain time of my live stream i want to play book mark #1 then at another time i want to play bookmark number 4.... then at another instance play Bookmark #3... So what im asking if i already know the timestamp of the videos and want to play them at certain times of my livestream, how can i trigger it to play at that timestamp (Bookmark)?
I hope i explained it properly.
Thanks.
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Rank: Advanced Member
Groups: Registered
Joined: 3/7/2012(UTC) Posts: 2,636 Location: Canada Thanks: 33 times Was thanked: 506 time(s) in 475 post(s)
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@ Clint Cruz
Shortcut ===> SetPosition (Value = milliseconds)
Ice
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Rank: Member
Groups: Registered
Joined: 4/24/2020(UTC) Posts: 10 Location: Garden Grove Thanks: 3 times
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I was able to use the ShortCut using the Set Position... It works! but when i calculate my time to play the video, its not as accurate as i hoped it would be. when i input the time in milliseconds it still is off a few seconds? why is that? what am i missing or having issues with?
thanks again ice for the help so far.
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Rank: Advanced Member
Groups: Registered
Joined: 3/7/2012(UTC) Posts: 2,636 Location: Canada Thanks: 33 times Was thanked: 506 time(s) in 475 post(s)
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@ Clint Cruz
Unfortunately, .mp4 files are not going to be frame accurate and will likely only go to the closest “reference” frame in the recording.
Ice
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Rank: Advanced Member
Groups: Registered
Joined: 5/20/2015(UTC) Posts: 493 Location: Copenhagen, Denmark Thanks: 389 times Was thanked: 100 time(s) in 79 post(s)
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As Ice states, .mp4 files encoded in H.264 it is not frame accurate when attempting to playback on specific milliseconds position. However, keeping the Key Frame Interval short, e.g. 1 second (30 frames for 30p video, 60 frames for 60p) or lower, and also ensuring that the video file is stored on fast storage like SSD or flash, will give a better chance that the video file is played back more accurately.
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