[LOGGED] Timecode + Markers

[crystalhorizon]

Sounds very useful

[DusX]

I think to be considered we will need to see if there is a standard for these things.

Definitely could be useful.

[mark_m]

A quick word with my friends at Adobe suggests that markers are embedded in the XMP info in the file header, and are a 'standard'. I'll have a play with opening that example file in FCP and Resolve and see if those programs read the markers. Meanwhile here's a page about the XMP: http://www.adobe.com/devnet/xmp.html

[mark_m]

Using EXIFtool:

XMP info easily extracted and the markers are clearly read and show as follows:

Tracks Track Name               : Markers

Tracks Frame Rate               : f25

Tracks Markers Start Time       : 45, 75, 100

Tracks Markers Name             : blue, yellow, light

Tracks Markers Type             : Comment, Comment, Comment

Tracks Markers Cue Point Params Key: marker_guid, marker_guid, marker_guid

Tracks Markers Cue Point Params Value: 42f744a8-1685-6a80-6548-729f00000024, 564c4da8-962e-ce3c-0701-cd0100000024, cd90ac2d-d593-35dd-049c-671400000024

Tracks Markers Guid             : cd90ac2d-d593-35dd-049c-671400000024

So the position of the markers is shown as the frame number, and the position (in hh.mm.ss.ff)  is calculated from the frame rate. (The markers are at 00:00:01:20, 00:00:03:00 and 00:00:04:00)

Full XMP info from the file is here

So you can see all the info contained in the file header.

And here's what the XMP looks like if I export it from Premiere as FCP compatible XML. Again, the markers are clearly defined as part of the XML.

Would Isadora have to be reading the XMP info anyhow, just in order to know the other video parameters like frame rate, frame size, duration, etc? In which case would this be straighforwards? Since Isadora would just looking for a couple more lines of XMP data.

Anyhow, I've planted this seed, given it a bit of water and compost, and hope it falls on fertile ground

[Kathmandale]

I would love this.

Recently I've been having to do video in QLab for a few people who've insisted on it. Generally I'm not a fan of it's video side but one neat feature is how it interprets 'markers' embedded in footage. A good example is being able to start a video, loop a section, then play the end. Obviously this is possible in Issy but it's nice to be able to just add the 'markers' in premier if you're lazy like me!

[mark_m]

I just wanted to bump this up, and to say that I hope that Timecode for Video in the Movie Player - as announced at the 2016 Werkstatt Keynote speech - is still on the road map.
Just been making a piece where I had to make a lot of use of percentage to time calculations, and Timecode would have been a huge time saver.
Just asking. As well as the markers

[Fred]

@mark_m +1 for me also for timecode and markers

[mark_m]

Just bumping this feature request up for attention, seeing as how it's been recently requested by someone else

[barneybroomer]

Once upon a time.....when QuickTime was still the bomb, you could embed text, midi, multichannel audio and timecode to a single QuickTime movie. From QuickTime 5 this was ditched and up until now there has never been a file format that was that close to all-in-one format that could be made with a broad range of editors. You could edit audio and video and midi in Protools or another DAW, and export the whole thing to one QT file. In the QT player you could add different audio outputs and midi out to a external midi I/O or patch internal. Did many show like that always rock solid. I discussed the last 15 years with Mark several time this approach, but due to constant change in Quicktime it was not possible this way anymore.

Zap, many years later I had to do a large showontrol setup for a show in Rotterdam, but was not able to use timecode, since all tracks that were played there were coming from a DJ setup and give him the freedom to mix it like they always do, so also change in pitch. So in that time we used DVJ's and I added in the bottom of the video several stripes with optical markers for pyro, laser, lights and commands for boats. So the markers were setup up as a binary coded stripe and you could add numbers for playlists and everything. The video was played out by the DVJ's, and we got rid of the info stripe at the bottom before we ended out to all projectors. The software in that time (I'm talking about 13 years ago) was also Isadora and I used it to decode the optical markers. I did not use colors but used "placement" tabs,  black for zero's and white for ones and sended out the corresponding midi triggers to all equipment. Was a hell of a job back then and can't remember what actors I used to measure the optical triggers, there was a reason why I used black and white instead of colours. Any how, the whole setup of the show including the setup of all triggers was done in Final Cut Pro. 

So when you use timecode, this works great with a non-pitched video, but when using a bunch of starts and stops, variable pitch, optical markers are a great tool. in Isadora you could make a tool that generates a optical marker with a certain midi pitch in to make the setup proces quicker instead of hanging 6 A4 on your wall to doublecheck if that one optical marker is the right one hahaha

[mark_m]

@mark_m

Just bumping up this request for old times' sake! Gets quite a few +1s, shouldn't be hard to program (all the data's in the XMP). Easier than IzzyCast, I'll bet

[Notdoc]

@mark_m

strongly agree...