VideoHelp Forum




+ Reply to Thread
Results 1 to 4 of 4
  1. Member
    Join Date
    May 2010
    Location
    NW Washington State
    Search PM
    Using Adobe Flash Media Live Encoder, I'm recording a copy of the stream during Live streaming events (as an flv). I would like to "mark" certain points in the recording with Flash cue points to serve as navigation points at playback time. For example, speaker intro, his first point, his second point, etc.
    Can I dynamically inject those points, on the fly, so to speak, during recording? If not, what is the best way to quickly and easily inject those navigation cue points after recording, without having to re-encode the video file?
    Best wishes,
    Eye for Video
    Quote Quote  
  2. Not possible after it's encoded because the cue points have to be on I-frames (keyframes).

    So your navigation points might be off quite a bit, depending on how you setup your keyframe interval

    I don't use FMLE , so I don' t know if you can dynamically do it either
    Quote Quote  
  3. Member
    Join Date
    May 2010
    Location
    NW Washington State
    Search PM
    I can adjust the keyframe frequency on a per second basis, which in a 1 hour video is plenty accurate enough for my purposes.
    So if the keyframes are there, do you have any recommendations for adding cuepoints after the initall recording?
    Or is it possible to use either an xml file or some other method to navigate to a place in the timecode or navigate to 1:30, for example?
    EfV
    Quote Quote  
  4. yes you can , you could use flvtool2 for example -k (onCuePoint)

    the exact method and code is going to depend on what front end you are using, and what protocol for streaming

    for example, in flowplayer
    http://flowplayer.org/demos/events/embedded-cuepoints.html

    just search google for "cue points" + whatever front end you are using, there should be lots of posts

    some front ends have customized drop down menus for your navigation points, and you can use .xml files

    one potential problem with setting 1sec keyframes, is that it can impair compression efficiency (would need larger bitrate for similar quality)
    Last edited by poisondeathray; 30th May 2010 at 10:52.
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!