I have worked really hard, and I am now granting you the ability to slow down and speed up time! With great power comes great responsibility... Actually, you can only slow down and speed up videos... not time in general.
[OpenShot speed settings for a clip]
You can choose between 1/16 speed all the way to 16x speed. If you need more precision than a simple dropdown, use the Advanced mode. Also, the advanced mode can go slower than 1/16 and faster than 16x... if you need that.
Unfortunately, when you are not in "Normal Speed", there is no audio support. In other words, you can't slow motion audio or speed it up yet. This is a MLT limitation, but they are aware that this feature is wanted / needed.
Unfortunately, when you are not in "Normal Speed", there is no audio support. In other words, you can't slow motion audio or speed it up yet. This is a MLT limitation, but they are aware that this feature is wanted / needed.
[OpenShot's advanced speed settings]
[Set the length of a clip with great precision]
The "Length" tab on the clip properties window lets you adjust the IN and OUT with great precision. Maybe too much precision! However, if you decide you only want to hear the audio of a clip, or only see the video, you can use the "General" tab on the clip properties window. These are the same toggles that are available on the timeline (i.e. the icons on the clips).
[General settings for a clip]
[General settings for a clip]
[OpenShot allows you to go between 1/16 speed to 16x speed]
You can also set the direction of a clip (forward / reverse). Although... just a warning, this seems a bit buggy with MLT. Especially if you slow down a clip, and then set it's direction to reverse.
If all these new features aren't enough, I have improved the auto-compositing capability of OpenShot to include all tracks (including the bottom track). What does this mean? It means that you can now key-frame, animate, transition, fade, mask, etc... any clip, on any track. A clip won't freak out anymore if there is no clip below it on the timeline. If you still don't understand, just know that this is really cool, and it will help you. =)
Tomorrow is our last feature announcement in this marathon. I am getting very close to a version 1.0 release. With the "official" release, there will be .DEB installers and hopefully a PPA. Thanks again for the support! I really love reading all of the comments, and it gives me a lot of motivation to keep on going. Stay tuned...
July 16, 2009 3:36 AM
That all seems amazingly impressive, you must be a freakin' genius!
July 16, 2009 3:37 AM
Repeating: I think I broke this again, this time by reinstalling, grabbing MLT from Git and choosing the FFmpeg option 3. Melt -query producers doesn't contain avformat. How can I fix it?
July 16, 2009 3:41 AM
Good work! OpenShot is getting better and better every day. Very active development. Huge respect.
Nice to see OpenShot approaching 1.0 status. Deb-packages will allow wider audience, better testing and even higher quality of OpenShot.
Perhaps couple RC versions with DEBs before announcing 1.0? Just to find if there are any "show stoppers". But definitely no need to do like VLC (one of my favourite programs), which just announced 1.0 after about decade of development. :D
I tried OpenShot yesterday and couldn't import some .mp4 videos, OpenShot just seemed to crash. Didn't have time to test it further, but I'll try with the latest version and see if it still does it. I'll file a bug report if necessary.
July 16, 2009 9:43 AM
Anonymous, I assure you that I am no freakin' genius. =)
Hohoo, feel free to post a question to LaunchPad, and I can help you with the installation.
tjh, I will definitely be releasing beta .DEB files as we get close. I won't release 1.0 until everyone can install this thing without any problems.
July 16, 2009 9:52 AM
Nice work Jonathan, too bad I cannot slow down the time for real ! :-)
July 16, 2009 10:39 AM
What! You're not going to allow us to bend the spacetime continuum??
No really, this is a cool feature. Thanks again!!
July 16, 2009 2:31 PM
Well done Jonathan.
You are producing new features faster than I can test them!
And you are fixing the bugs in them before I can submit the ones I find on the bug tracking system.
I'm currently testing version 0.9.3 which has fixed the bugs I found in 0.9.0.
I have found a few little bugs in 0.9.3 and I will try and get them logged on the bug tracking system before you fix them this time. ;-)
Version 0.9.3 is looking particularly good now. The sound levels and fading are especially useful, and the interface for this is a lot less fiddly than the corresponding one in kdenlive.
The clip speed control works superbly. I have found nothing to match it in any of the other Open Source video editors I have tested. This is going to be very useful for me with my aerial acrobatics films.
Many thanks, Helen
July 16, 2009 3:20 PM
That's made my day. I can't wait to try speeding up tracks. Really glad you added the ability to change direction to. Thanks for all your hard work.
July 16, 2009 5:13 PM
Hello Adam,
I can confirm that this speed control is marvellous.
I slowed down a High Definition clip of two of my pupils on trapeze. I rendered it as a full 1920 x 1080 mp4, and played it in VLC.
At half speed it was very smooth and wonderfully graceful. There appeared to be no horrible artifacts from the process.
I am going to make good use of this feature in my films for our circus troupe.
Helen McCall
July 16, 2009 10:44 PM
I can't get OpenShot (0.9.3) to work anymore. Importing any material (video, audio or images) will result in "Segmentation fault (core dumped)". I tried ffmpeg options 3 and 1 (reinstalled version from Ubuntu repositories). I'm running Ubuntu 9.10 and OpenShot used to work until recently.
If anyone else is running OpenShot on Ubuntu 9.10, I'd be glad to get any information about similar problems or confirmation that it works on theirs.
July 17, 2009 4:23 AM
Hello everybody, i am in late, i have taken yesterday a very big storm , more than an half of the country was in alert. I'm thinking that this effect is called "retiming video" like a matix effect.
http://linuxfr.org/~dtschump/27113.html
That's wright or it's an error to my part ?