Hi, what is a usable piece of software in portage to do a quick edit of
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
BillK
On 20/12/21 11:17 am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick edit
of a movie? (cut start/end and maybe splice a bit in/out of the middle?)
BillK
How easy should it be? Won't ffmpeg allow you to do this type of thing
but you need to do a bit of work to get what you need - no nice GUI?
Andrew
On 20/12/21 13:40, Andrew Lowe wrote:
On 20/12/21 11:17 am, William Kenworthy wrote:I am using ffmeg now to reduce the video size. Its a Christmas message taken on a lumix camera that needs to be sent a few thousand km over
Hi, what is a usable piece of software in portage to do a quick edit
of a movie? (cut start/end and maybe splice a bit in/out of the middle?) >>>
BillK
How easy should it be? Won't ffmpeg allow you to do this type of thing
but you need to do a bit of work to get what you need - no nice GUI?
Andrew
what may be a flakey mobile link. I just wanted something I can play a video, click on a point and delete everything before that. Same at the end. Looking at kdelive its a stupidly complex program that has a steep learning curve to do the above.
With pretty much every bit of linux software I've found, I have to
import my source into a project, make a meal of deleting the sections I don't want, and then I can't just "save a file", I have to tell the
program loads of crap that I don't have a clue about, I just want my
new file to be EXACTLY THE SAME as the original, just missing the bits
I've deleted.
On 20/12/2021 06:11, William Kenworthy wrote:
I'm looking for the same. On my PVR I just create two chapter marks, and delete the section between the chapter marks.
On 20/12/21 13:40, Andrew Lowe wrote:
On 20/12/21 11:17 am, William Kenworthy wrote:I am using ffmeg now to reduce the video size. Its a Christmas
Hi, what is a usable piece of software in portage to do a quick edit
of a movie? (cut start/end and maybe splice a bit in/out of the
middle?)
BillK
How easy should it be? Won't ffmpeg allow you to do this type of
thing but you need to do a bit of work to get what you need - no nice
GUI?
Andrew
message taken on a lumix camera that needs to be sent a few thousand
km over what may be a flakey mobile link. I just wanted something I
can play a video, click on a point and delete everything before that.
Same at the end. Looking at kdelive its a stupidly complex program
that has a steep learning curve to do the above.
With pretty much every bit of linux software I've found, I have to
import my source into a project, make a meal of deleting the sections I
don't want, and then I can't just "save a file", I have to tell the
program loads of crap that I don't have a clue about, I just want my new
file to be EXACTLY THE SAME as the original, just missing the bits I've deleted.
Most software works like that, why doesn't video editing software?
Cheers,
Wol
On 12/20/21 12:55 AM, Wols Lists wrote:
On 20/12/2021 06:11, William Kenworthy wrote:
I'm looking for the same. On my PVR I just create two chapter marks,
On 20/12/21 13:40, Andrew Lowe wrote:
On 20/12/21 11:17 am, William Kenworthy wrote:I am using ffmeg now to reduce the video size. Its a Christmas
Hi, what is a usable piece of software in portage to do a quick
edit of a movie? (cut start/end and maybe splice a bit in/out of
the middle?)
BillK
How easy should it be? Won't ffmpeg allow you to do this type of
thing but you need to do a bit of work to get what you need - no
nice GUI?
Andrew
message taken on a lumix camera that needs to be sent a few thousand
km over what may be a flakey mobile link. I just wanted something I
can play a video, click on a point and delete everything before that.
Same at the end. Looking at kdelive its a stupidly complex program
that has a steep learning curve to do the above.
and delete the section between the chapter marks.
With pretty much every bit of linux software I've found, I have to
import my source into a project, make a meal of deleting the sections
I don't want, and then I can't just "save a file", I have to tell the
program loads of crap that I don't have a clue about, I just want my
new file to be EXACTLY THE SAME as the original, just missing the bits
I've deleted.
Most software works like that, why doesn't video editing software?
Cheers,
Wol
I have not tried this myself but has anyone tried "easycrop". It is a
script that uses mpv to do the hard work.
https://github.com/aidanholm/mpv-easycrop
Hi, what is a usable piece of software in portage to do a quick edit of
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
On Mon, 20 Dec 2021 07:55:15 +0000, Wols Lists wrote:
With pretty much every bit of linux software I've found, I have to
import my source into a project, make a meal of deleting the sections I
don't want, and then I can't just "save a file", I have to tell the
program loads of crap that I don't have a clue about, I just want my
new file to be EXACTLY THE SAME as the original, just missing the bits
I've deleted.
Avidemux works just like that, select the bits you don't want, delete
them, save using the copy codec, which does no transcoding.
Or you can use a different codec/bitrate/whatever if you also want to
reduce the size.
On 20/12/2021 08:25, Neil Bothwick wrote:
On Mon, 20 Dec 2021 07:55:15 +0000, Wols Lists wrote:
With pretty much every bit of linux software I've found, I have to
import my source into a project, make a meal of deleting the sections I
don't want, and then I can't just "save a file", I have to tell the
program loads of crap that I don't have a clue about, I just want my
new file to be EXACTLY THE SAME as the original, just missing the bits
I've deleted.
Avidemux works just like that, select the bits you don't want, delete
them, save using the copy codec, which does no transcoding.
Or you can use a different codec/bitrate/whatever if you also want to reduce the size.
Ummm.
I don't know what the problem was, but I know I tried Avidemux, and it
really didn't work for me. afair, it just got slower and slower, and was taking hours to save a file. Maybe a couple of days to save a 2hr video,
that sort of thing ...
Cheers,
Wol
On 20/12/21 13:40, Andrew Lowe wrote:
On 20/12/21 11:17 am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick
edit of a movie? (cut start/end and maybe splice a bit in/out of
the middle?)
BillK
How easy should it be? Won't ffmpeg allow you to do this type of
thing but you need to do a bit of work to get what you need - no
nice GUI?
AndrewI am using ffmeg now to reduce the video size. Its a Christmas
message taken on a lumix camera that needs to be sent a few thousand
km over what may be a flakey mobile link. I just wanted something I
can play a video, click on a point and delete everything before that.
Same at the end. Looking at kdelive its a stupidly complex program
that has a steep learning curve to do the above.
BillK
Hi, what is a usable piece of software in portage to do a quick edit of
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
Hi, what is a usable piece of software in portage to do a quick edit of
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
Hi, what is a usable piece of software in portage to do a quick edit
of a movie? (cut start/end and maybe splice a bit in/out of the
middle?)
I've not seen anyone mention OpenShot. It is in portage, but masked for
some reason.
On 2021/12/20 at 11:17am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick edit ofI've not seen anyone mention OpenShot. It is in portage, but masked for
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
some reason.
As someone else mentioned, you do have to create a project and then
export. Really, though, the "create project, make export choices" is
only like an extra minute or two of your time. I usually don't even save
the project for just some simple trimming.
On 21/12/2021 16:07, Spackman, Chris wrote:
On 2021/12/20 at 11:17am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick edit of
a movie? (cut start/end and maybe splice a bit in/out of the middle?)
I've not seen anyone mention OpenShot. It is in portage, but masked for some reason.
As someone else mentioned, you do have to create a project and then
export. Really, though, the "create project, make export choices" is
only like an extra minute or two of your time. I usually don't even save the project for just some simple trimming.
It may be a minute or two of YOUR time.
For someone who doesn't "DO" video editing, it can easily turn into
hours of debugging trying to work out what does (or doesn't) work.
Sorry, but you can't assume we're all video whizzes like you ... :-)
That's why we want something dummy-proof!
Wow, sorry, didn't realize this was such a sore issue. Especially
considering we've already discussed several command line programs in
this thread.
To export:
1. press the red circular "export video" button (or go to File =>
Export Project => Export Video);
2a. [optional] change the name of the video in the export window that
pops up;
2b. press the "export video" button at the bottom of the window. Here,
for me, the defaults work fine.
As someone who has experimented with video editing software, I can
understand Wols on this. What some of us needs is something similar to 'video editing for dummys' except we need the software not the book. At
one time, I wanted to remove like 20 or 30 seconds on the beginning and
about the same on the end of a few videos. Hours later, still couldn't figure it out. Heaven forbid I wanted to remove something in the middle
as well or add a second or so of black screen.
On 2021/12/21 at 05:13pm, Wols Lists wrote:
On 21/12/2021 16:07, Spackman, Chris wrote:
On 2021/12/20 at 11:17am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick edit of >>>> a movie? (cut start/end and maybe splice a bit in/out of the middle?)I've not seen anyone mention OpenShot. It is in portage, but masked for
some reason.
As someone else mentioned, you do have to create a project and then
export. Really, though, the "create project, make export choices" is
only like an extra minute or two of your time. I usually don't even save >>> the project for just some simple trimming.
It may be a minute or two of YOUR time.Wow, sorry, didn't realize this was such a sore issue. Especially
For someone who doesn't "DO" video editing, it can easily turn into
hours of debugging trying to work out what does (or doesn't) work.
Sorry, but you can't assume we're all video whizzes like you ... :-)
That's why we want something dummy-proof!
considering we've already discussed several command line programs in
this thread.
To export:
1. press the red circular "export video" button (or go to File =>
Export Project => Export Video);
2a. [optional] change the name of the video in the export window that
pops up;
2b. press the "export video" button at the bottom of the window. Here,
for me, the defaults work fine.
I did it three times in less than a minute, double checking the accuracy
for this post. So, not a huge inconvenience.
Of course, if the defaults do NOT work for you, then you do not want something "dead easy", you want something that will read your mind and
do what you want, somehow, automagically.
On 2021-12-21, Dale <rdalek1967@gmail.com> wrote:
As someone who has experimented with video editing software, I canI've had pretty much the same experience with all of the GUI video
understand Wols on this. What some of us needs is something similar to
'video editing for dummys' except we need the software not the book. At
one time, I wanted to remove like 20 or 30 seconds on the beginning and
about the same on the end of a few videos. Hours later, still couldn't
figure it out. Heaven forbid I wanted to remove something in the middle
as well or add a second or so of black screen.
editing software I've tried:
0. It takes at a day just to get one to build.
1. The GUI is always completely baffling, and there doesn't seem to
be any commonality from one package to the next.
2. There's little or no documentation available other than lists of
commands/features with descriptions that assume you already know
how the program works. When you need to know how to accomplish a
task, there's no help. It is always assumed you already know what
command/feature to use.
3. The "project" structure and paradigm always seems to be WAY too
complex for what I want to do and does nothing for me other than
get in the way.
4. About 30% of the features/commands don't work at all, another 30%
don't work they way the documentation says they do, and the rest
have been renamed and moved to a different menu/panel/mode since
the documentation was written.
5. All of the ones I've ever tried crashed frequently. They crash
when adding a source, when adding or changing an edit,
transitions, or effect. They crash when exporting/rendering.
Melt is the only one I've ever been able to actually accomplish
something useful with. The really nice thing is that you can write a
bash (or other) program to automate stuff. If all you want to do is concatenate a directory full of video clips with some intro, outro,
and transitions, you can write a script that does that and then run it
on as many different directories or lists of files as you want.
You don't have to set up a new project and start from scratch every time.
Spackman, Chris wrote:
On 2021/12/21 at 05:13pm, Wols Lists wrote:
On 21/12/2021 16:07, Spackman, Chris wrote:Wow, sorry, didn't realize this was such a sore issue. Especially
On 2021/12/20 at 11:17am, William Kenworthy wrote:
Hi, what is a usable piece of software in portage to do a quick edit of >>>>> a movie? (cut start/end and maybe splice a bit in/out of the middle?) >>>> I've not seen anyone mention OpenShot. It is in portage, but masked for >>>> some reason.As someone else mentioned, you do have to create a project and then
export. Really, though, the "create project, make export choices" is
only like an extra minute or two of your time. I usually don't even save >>>> the project for just some simple trimming.
It may be a minute or two of YOUR time.
For someone who doesn't "DO" video editing, it can easily turn into
hours of debugging trying to work out what does (or doesn't) work.
Sorry, but you can't assume we're all video whizzes like you ... :-)
That's why we want something dummy-proof!
considering we've already discussed several command line programs in
this thread.
To export:
1. press the red circular "export video" button (or go to File =>
Export Project => Export Video);
2a. [optional] change the name of the video in the export window that
pops up;
2b. press the "export video" button at the bottom of the window. Here,
for me, the defaults work fine.
I did it three times in less than a minute, double checking the accuracy
for this post. So, not a huge inconvenience.
Of course, if the defaults do NOT work for you, then you do not want
something "dead easy", you want something that will read your mind and
do what you want, somehow, automagically.
As someone who has experimented with video editing software, I can
understand Wols on this. What some of us needs is something similar to 'video editing for dummys' except we need the software not the book. At
one time, I wanted to remove like 20 or 30 seconds on the beginning and
about the same on the end of a few videos. Hours later, still couldn't figure it out. Heaven forbid I wanted to remove something in the middle
as well or add a second or so of black screen. O_O
This coming from someone who was able to figure out Kicad and get
circuit boards made. Just saying. LOL
Grant Edwards wrote:
On 2021-12-21, Dale <rdalek1967@gmail.com> wrote:I never had Kdenlive to crash. I just couldn't figure out how to make
As someone who has experimented with video editing software, I canI've had pretty much the same experience with all of the GUI video
understand Wols on this. What some of us needs is something similar to >>> 'video editing for dummys' except we need the software not the book. At >>> one time, I wanted to remove like 20 or 30 seconds on the beginning and
about the same on the end of a few videos. Hours later, still couldn't >>> figure it out. Heaven forbid I wanted to remove something in the middle >>> as well or add a second or so of black screen.
editing software I've tried:
0. It takes at a day just to get one to build.
1. The GUI is always completely baffling, and there doesn't seem to
be any commonality from one package to the next.
2. There's little or no documentation available other than lists of
commands/features with descriptions that assume you already know
how the program works. When you need to know how to accomplish a
task, there's no help. It is always assumed you already know what
command/feature to use.
3. The "project" structure and paradigm always seems to be WAY too
complex for what I want to do and does nothing for me other than
get in the way.
4. About 30% of the features/commands don't work at all, another 30%
don't work they way the documentation says they do, and the rest
have been renamed and moved to a different menu/panel/mode since
the documentation was written.
5. All of the ones I've ever tried crashed frequently. They crash
when adding a source, when adding or changing an edit,
transitions, or effect. They crash when exporting/rendering.
Melt is the only one I've ever been able to actually accomplish
something useful with. The really nice thing is that you can write a
bash (or other) program to automate stuff. If all you want to do is
concatenate a directory full of video clips with some intro, outro,
and transitions, you can write a script that does that and then run it
on as many different directories or lists of files as you want.
You don't have to set up a new project and start from scratch every time.
it work. As you say, most docs are out of date or for old versions.
I've seen that with Kicad too. I kind of dread upgrading to Kicad 6. I actually masked it here until the bugs get worked out and the docs catch
up.
Maybe one day either the docs will catch up or they will make it easy to figure out. Maybe. ;-)
Dale
:-) :-)
From: Wols Lists <antlists@youngman.org.uk>
Oh - and as for using the command line, it's all very well until you try >>and figure out where to tell the command line to cut the video file - I >>really don't want to have to run the command line hundreds of times, >>checking the output every time, and throwing away the ones that cut in >>the wrong place. Oh, and if I use some video editing software to find the >>exact millisecond I want to cut, it STILL cuts it in completely the wrong >>place ...
Cheers,
Wol
Note that some editing software can only cut at the iframes, and it's also fairly common to only be able to cut at the iframes unless it's re-encoding the data. That can be a major source of frustration.
LMP
Oh - and as for using the command line, it's all very well until you
try and figure out where to tell the command line to cut the video
file - I really don't want to have to run the command line hundreds
of times, checking the output every time, and throwing away the ones
that cut in the wrong place.
Oh, and if I use some video editing software to find the exact
millisecond I want to cut, it STILL cuts it in completely the wrong
place ...
Note that some editing software can only cut at the iframes, and
it's also fairly common to only be able to cut at the iframes unless
it's re-encoding the data.
On 2021-12-21, Laurence Perkins <lperkins@openeye.net> wrote:
Note that some editing software can only cut at the iframes, and
it's also fairly common to only be able to cut at the iframes unless
it's re-encoding the data.
AFAIUI, it's not even theoretically possible to cut anyplace other
than the I-frames without decoding and reencoding at least the portion
of the stream where the cut is being made. While it might be possible
to copy the rest of the stream, I don't know of any editors that will
do that.
What is an i-frame? As I understood it, typically when you had a scene change, a frame was written in full, then subsequent frames were stored
as diffs. Is that what an i-frame is?
In which case, surely it can't be that tricky to delete a block without having to decode/encode more than a few frames?
TTCut can do "smart cutting" by encoding only the affected GOP [2].
However it only works for Mpeg2 Video and Mpeg2 Audio or Dolby AC-3
Audio. I have not tested it but VidCutter [3] should also be capable of
doing so and as I see there is no restriction on the codecs. They are
the only ones I am aware of supporting this feature and they are
packaged for Gentoo.
Note that some editing software can only cut at the iframes, and it's
also fairly common to only be able to cut at the iframes unless it's re-encoding the data. That can be a major source of frustration.
LMP
Yes, I've noticed this with kdenlive and from what I recall from years
ago, avidemux too. I can't recall if there was some GUI option to
change this - I never found it.
Now emerging! I shall have to play with it, but it looks just what the doctor ordered. I *believe* a ts contains an mpeg2 ... let's hope!
On Wed, 22 Dec 2021 20:39:59 +0000, Wols Lists wrote:
Now emerging! I shall have to play with it, but it looks just what the
doctor ordered. I *believe* a ts contains an mpeg2 ... let's hope!
AFAIR recall a .ts (Transport Stream) file is intended for broadcast and
so contains more redundant information to allow for unreliable
transmission - MythTV records .ts files. Converting for MPEG without reencoding gives the same video but in a smaller file.
On 21/12/2021 18:49, Spackman, Chris wrote:
2b. press the "export video" button at the bottom of the window. Here,
for me, the defaults work fine.
The problem is 2b. For me, it's an extremely simple case of "I gave you
a dot ts file, I want a dot ts file back".
The act of importing the ts file into the project seems to throw that information away. I know a .ts is some sort of a container, with streams
and whatnot, but I don't have a clue what's in it. Why should I?
All I know is I want to end up with EXACTLY the same sort of file I
started with, and this seems exactly what most video editors don't have
a clue how to do!
(Like a word .docx - I don't give a monkeys what's inside it, I don't
need to, word takes care of all that. Why can't any half-decent video
editor do the same?)
And yes, I have tried. You're hearing the screams of frustration from countless failed attempts.
Wol schrieb am 22.12.21 um 19:45:
What is an i-frame? As I understood it, typically when you had a scene
change, a frame was written in full, then subsequent frames were
stored as diffs. Is that what an i-frame is?
Wikipedia [1] to the help.
In which case, surely it can't be that tricky to delete a block
without having to decode/encode more than a few frames?
Encoding only the affected region is tricky because you need to use the
same codec parameters (encoding profile, resolution, colour space, FPS,
bit depth, bitrate, and possibly more parameters which are also codec dependent) like the rest of the unaffected portion of the video to be
able to concatenate it again afterwards with the rest of the video. Also
it is tricky to keep video an audio in sync when having a lot of cut
points. Probably there are other issues depending on the required
codecs. So making it work for every codec even only for the popular ones might be a lot of work.
TTCut can do "smart cutting" by encoding only the affected GOP [2].
However it only works for Mpeg2 Video and Mpeg2 Audio or Dolby AC-3
Audio. I have not tested it but VidCutter [3] should also be capable of
doing so and as I see there is no restriction on the codecs. They are
the only ones I am aware of supporting this feature and they are
packaged for Gentoo.
[1] https://en.wikipedia.org/wiki/Video_compression_picture_types
[2] https://en.wikipedia.org/wiki/Group_of_pictures
[3] https://github.com/ozmartian/vidcutter
Now emerging! I shall have to play with it, but it looks just what
the doctor ordered. I *believe* a ts contains an mpeg2 ... let's
hope!
AFAIR recall a .ts (Transport Stream) file is intended for broadcastQuite likely. But if I want to replay it on the same tv (and don't want
and so contains more redundant information to allow for unreliable transmission - MythTV records .ts files. Converting for MPEG without reencoding gives the same video but in a smaller file.
to spend hours recoding), it seems like the best solution - that works
- is to leave it as it is.
Video is enough of a maze of twisty little passages as it is, i don't
want to get lost again ... :-)
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