28 May
2017
28 May
'17
11:07 a.m.
Since I got a dashboard camera for use in my car I have got very long
videos which I would like to split into smaller parts. What can opensuse
offer me for such a job? And if I start editing, what are the programs
of choice?
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28 May
28 May
1:15 p.m.
New subject: [opensuse] handling videos
Le 28/05/2017 à 12:07, Constant Brouerius van Nidek a écrit :
Since I got a dashboard camera for use in my car I
have got very long
videos which I would like to split into smaller parts. What can opensuse
offer me for such a job? And if I start editing, what are the programs
of choice?
kdenlive
jdd
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2:41 p.m.
On Sun, 28 May 2017 17:07:30 +0700
Constant Brouerius van Nidek wrote:
Since I got a dashboard camera for use in my car I
have got very long
videos which I would like to split into smaller parts. What can
opensuse offer me for such a job? And if I start editing, what are
the programs of choice?
Hi Constant,
We don't know the camera make & model or the recording format it uses.
This would be very helpful to know because it affects the complexity of
any recommendations. For example:
I've been playing with a high resolution (1080p) ~30 FPS camera that writes insanely
large files in .mov format to an internal micro-SD card. It has a built-in feature which
automatically (and seamlessly) splits the data stream into 5 minute 'chunks' as it
is recording. The files it creates in this mode are ~580 MB every five minutes. When the
micro-SD card fills up, it continues uninterrupted recording by overwriting existing
files, beginning with the oldest files first.
To productively work with these large files, I learned that it helped a
great deal to keep my "source", "target" and "system" disks
isolated
from one another to avoid device read/write contention.
I frequently used cli ffmpeg to transcode these files into .mpg / .mp4
formats - the output format was determined by my use case - to make
them much smaller and more manageable.
cli ffmpeg is also convenient for exporting (transcoding) selected
'clips' by specifying the source 'start' and 'stop' times.
Other times - again, depending upon the use case - I used cli mpgtx
("an MPeG ToolboX") to split large files down into equal sized 'chunks'
to make them easier to work.
In other words, I used a combination of tools and techniques to create
and dump 'clips' into a source directory that I could use with whatever
non-linear digital video editor I was experimenting with at the time.
As for which editor I preferreed, Cinelerra is great but it has a
fairly steep learning curve. I also liked kdenlive and openshot.
hth & regards,
Carl
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29 May
29 May
10:01 a.m.
On Sunday, May 28, 2017 8:41:38 PM WIB Carl Hartung wrote:
On Sun, 28 May 2017 17:07:30 +0700
Constant Brouerius van Nidek wrote:
Dear Carl,
Am still finding out the specifics of this gift but in the mean time I
know that the picture format is .MOV.
Have already reuced some videos to .mp4 for a smoother playing.
Will now dive into editing.
Thanks list for the help
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Qt: 5.7.1
KDE Frameworks: 5.33.0
kf5-config: 1.0
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plasmashell 5.9.5
Kernel: 4.11.2-1-default
Linux User 183145 working on a Pentium IV .
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Since I got a dashboard camera for use in my car
I have got very
long
videos which I would like to split into smaller parts. What can
opensuse offer me for such a job? And if I start editing, what are
the programs of choice?
Hi Constant,
We don't know the camera make & model or the recording format it uses.
This would be very helpful to know because it affects the complexity
of any recommendations. For example:
I've been playing with a high resolution (1080p) ~30 FPS camera that
writes insanely large files in .mov format to an internal micro-SD
card. It has a built-in feature which automatically (and seamlessly)
splits the data stream into 5 minute 'chunks' as it is recording. The
files it creates in this mode are ~580 MB every five minutes. When
the micro-SD card fills up, it continues uninterrupted recording by
overwriting existing files, beginning with the oldest files first.
To productively work with these large files, I learned that it helped
a great deal to keep my "source", "target" and "system"
disks
isolated from one another to avoid device read/write contention.
I frequently used cli ffmpeg to transcode these files into .mpg / .mp4
formats - the output format was determined by my use case - to make
them much smaller and more manageable.
cli ffmpeg is also convenient for exporting (transcoding) selected
'clips' by specifying the source 'start' and 'stop' times.
Other times - again, depending upon the use case - I used cli mpgtx
("an MPeG ToolboX") to split large files down into equal sized
'chunks' to make them easier to work.
In other words, I used a combination of tools and techniques to create
and dump 'clips' into a source directory that I could use with
whatever non-linear digital video editor I was experimenting with at
the time. As for which editor I preferreed, Cinelerra is great but it
has a fairly steep learning curve. I also liked kdenlive and
openshot.
hth & regards,
1 Jun
1 Jun
7:26 a.m.
New subject: [opensuse] handling videos
On 05/28/2017 08:41 AM, Carl Hartung wrote:
in this mode are ~580 MB every five minutes. When the
micro-SD card fills
up, it continues uninterrupted recording by overwriting existing files,
beginning with the oldest files first.
You have it good. The old raw uncompressed (digital-8) 'dv' format was 31 MB
per-second (which I still use because my . Since it is a dashcam, the files
are probably already on disk. If you want to cut from the command line, there
is always ffmpeg (see:
https://superuser.com/questions/458761/accurately-cut-video-files-from-comm…)
For GUI apps, see
https://askubuntu.com/questions/56022/what-to-use-to-quickly-cut-audio-video
Personally, I've always like cinelerra, but making friends with it takes a
little time (but for just chopping out video clips, it's pretty easy) kdenlive
seems to be a popular favorite.
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12:46 p.m.
New subject: [opensuse] handling videos
On Thu, 1 Jun 2017 01:26:18 -0500
David C. Rankin wrote:
The old raw uncompressed (digital-8) 'dv'
format was 31 MB
per-second
I've worked with 'raw' digital video data in .dv format many times
since Cinelerra and kdenlive use it as their native file format. What I
didn't recognize until just now was the digital-8 connection. :)
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5 Jun
5 Jun
8:33 a.m.
New subject: [opensuse] handling videos
On 06/01/2017 06:46 AM, Carl Hartung wrote:
I've worked with 'raw' digital video data
in .dv format many times
since Cinelerra and kdenlive use it as their native file format. What I
didn't recognize until just now was the digital-8 connection. :)
Oh yes... And I'm still lucky enough to have 2 of them. Fantastic 3-CCD
cameras, that do 16:9 wide-screen, etc.. I'll use them until they die (or
until I can't find a firewire port anymore -- which is getting damn hard to
find) Luckily my new(used) laptop HP 8760w comes complete with firewire and
all my servers have it.
Using 'dvgrab' from the command-line is a wonderful utility. It will locate
the small silence created by pressing the 'Record-Standby' button and create
separate clips of each video clip for you (with nice date-time prefix so all
your clips are nicely ordered as well. Literally, I have a little script that
will run and rewind the tapes, download the dv clips, create a log file of the
clips with their associated date-time, then rewind the tape again at the end,
eject it and wait for me to put in the new tape.
dvgrab is the swiss-army-knife for getting dv off tape over firewire :p
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28 May
28 May
4:43 p.m.
Constant Brouerius van Nidek wrote:
Since I got a dashboard camera for use in my car I
have got very long
videos which I would like to split into smaller parts. What can opensuse
offer me for such a job? And if I start editing, what are the programs
of choice?
As already mentioned, ffmpeg and kdenlive. Two comments on that:
You can use ffmpeg to split the long videos into chunks without re-encoding.
ffmpeg -i longvideo -ss <starttime> -to <endtime> -c copy partvideo
(times are hh:mm:ss). Makes handling them much easier.
For real cutting etc kdenlive, and there it helps to have it create low-res
proxy versions of your movies that are used in the gui. This really makes
work a LOT more comfortable. You can enable it in settings->kdenlive->Project
Defaults.
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5:24 p.m.
New subject: [opensuse] handling videos
Le 28/05/2017 à 17:43, Peter Suetterlin a écrit :
For real cutting etc kdenlive, and there it helps to
have it create low-res
proxy versions of your movies that are used in the gui. This really makes
work a LOT more comfortable. You can enable it in settings->kdenlive->Project
Defaults.
did you use it really? I never seen any difference, hence I guess
something don't works
jdd
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29 May
29 May
2:04 p.m.
New subject: [opensuse] handling videos
jdd(a)dodin.org wrote:
Le 28/05/2017 à 17:43, Peter Suetterlin a écrit :
I used to, haven't been doing much video the last 2-3 years :o
Then it was still on my old laptop (Core Duo 2.5GHz), and the difference was
well noticeable when moving around in the video...
But you have to enable it and maybe also check the radiobox for the videos if
you don't enable auto-proxy or the size of the video is too small.
Maybe also on nowadays hardware with SSDs the difference is substantially
less. Then again, now we have 4k (and more) videos around
Pit
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For real cutting etc kdenlive, and there it helps
to have it create low-res
proxy versions of your movies that are used in the gui. This really makes
work a LOT more comfortable. You can enable it in settings->kdenlive->Project
Defaults.
did you use it really? I never seen any difference, hence I guess something
don't works 
28 May
28 May
7:25 p.m.
New subject: [opensuse] handling videos
Am 28.05.2017 um 12:07 schrieb Constant Brouerius van Nidek:
Since I got a dashboard camera for use in my car I
have got very long
videos which I would like to split into smaller parts. What can opensuse
offer me for such a job? And if I start editing, what are the programs
of choice?
Perhaps you should have look at “Openshot”. www.openshot.org
But this is a real video editor, so if you only want to split the files
it’s a little bit to much overhead
by Peter
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7:31 p.m.
New subject: [opensuse] handling videos
Am 28.05.2017 um 12:07 schrieb Constant Brouerius van
Nidek:
> Since I got a dashboard camera for use in my car I have got very long
> videos which I would like to split into smaller parts.
I guess some internal setup can solve this (limit the time)
jdd
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1329
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1337
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11 comments
7 participants
participants (7)
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Carl Hartung -
Constant Brouerius van Nidek -
David C. Rankin -
jdd＠dodin.org -
Peter Sikorski GTL -
Peter Suetterlin -
pit