Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #169621 > unrolled thread

Truncating MPGs or MP4s

Back to article view | Back to linux.debian.user

Contents

  Truncating MPGs or MP4s brian <brian@meadows.pair.com> - 2016-07-02 16:40 +0200
    Re: Truncating MPGs or MP4s Juanjo Benages <juanjo@benages.eu> - 2016-07-02 17:00 +0200
    Re: Truncating MPGs or MP4s Francois Gouget <fgouget@free.fr> - 2016-07-02 17:00 +0200
      Re: Truncating MPGs or MP4s Michael Lange <klappnase@freenet.de> - 2016-07-04 12:00 +0200
        Re: Truncating MPGs or MP4s Michael Lange <klappnase@freenet.de> - 2016-07-04 12:10 +0200
          Re: Truncating MPGs or MP4s <tomas@tuxteam.de> - 2016-07-04 12:30 +0200
        Re: Truncating MPGs or MP4s <tomas@tuxteam.de> - 2016-07-04 12:10 +0200
        Re: Truncating MPGs or MP4s Victor A. Stoichita <victor@svictor.net> - 2016-07-04 12:20 +0200
          Re: Truncating MPGs or MP4s <tomas@tuxteam.de> - 2016-07-04 12:30 +0200
      Re: Truncating MPGs or MP4s Victor A. Stoichita <victor@svictor.net> - 2016-07-04 10:30 +0200
    Re: Truncating MPGs or MP4s Lisi Reisz <lisi.reisz@gmail.com> - 2016-07-02 17:00 +0200
    Re: Truncating MPGs or MP4s Gene Heskett <gheskett@shentel.net> - 2016-07-02 17:20 +0200
    Re: Truncating MPGs or MP4s Brian <ad44@cityscape.co.uk> - 2016-07-02 18:50 +0200
      Re: Truncating MPGs or MP4s Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-07-02 23:50 +0200
      Re: Truncating MPGs or MP4s brian <brian@meadows.pair.com> - 2016-07-03 02:20 +0200
      Re: Truncating MPGs or MP4s Jonathan Dowland <jmtd@debian.org> - 2016-07-03 11:30 +0200
    Re: Truncating MPGs or MP4s Gener Badenas <gener.ong.badenas@gmail.com> - 2016-07-05 06:40 +0200

#169621 — Truncating MPGs or MP4s

Hi folks, 

There seem to be a number of video editing programs available, at
least according to Synaptic's lists. 

I have a very simple need - I've got a LOT of VHS tapes to convert
before my last VCR dies. I have it all sorted except for one thing - I
have to play the tapes real time, so I leave them running. This means
the resulting files will have a chunk of 'dead space' at the end of
them if I'm not there when the video content finishes. 

I just need to remove that dead space - doesn't matter to me whether I
do that on the MPG or after conversion to the MP4. I don't need all
the bells and whistles that most video programs are likely to have, I
just need to be able to see the video and then mark a point after
which everything will be deleted - in other words, a very SIMPLE video
editor. 

Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
plenty of CPU and RAM available. 

Thanks, 

[toc] | [next] | [standalone]

#169622

El 02/07/16 a las 16:33, brian escribió:
>
> Hi folks,
>
> There seem to be a number of video editing programs available, at
> least according to Synaptic's lists.
>
> I have a very simple need - I've got a LOT of VHS tapes to convert
> before my last VCR dies. I have it all sorted except for one thing - I
> have to play the tapes real time, so I leave them running. This means
> the resulting files will have a chunk of 'dead space' at the end of
> them if I'm not there when the video content finishes.
>
> I just need to remove that dead space - doesn't matter to me whether I
> do that on the MPG or after conversion to the MP4. I don't need all
> the bells and whistles that most video programs are likely to have, I
> just need to be able to see the video and then mark a point after
> which everything will be deleted - in other words, a very SIMPLE video
> editor.
>
> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
> plenty of CPU and RAM available.
>
> Thanks,
>
>

I have used Avidemux and it is simple to use. The problem is it is not 
in the official debian repositories but in the deb-multimedia repo.

[toc] | [prev] | [next] | [standalone]

#169623

On Sat, 2 Jul 2016, brian wrote:
[...]
> I just need to remove that dead space - doesn't matter to me whether I
> do that on the MPG or after conversion to the MP4. I don't need all
> the bells and whistles that most video programs are likely to have, I
> just need to be able to see the video and then mark a point after
> which everything will be deleted - in other words, a very SIMPLE video
> editor. 

I usually use avidemux for that, telling it to copy the audio and video 
rather then reencode them. Then I do the transcoding with handbrake.


-- 
Francois Gouget <fgouget@free.fr>              http://fgouget.free.fr/
      Sufficently advanced incompetence is indistinguishable from malice.

[toc] | [prev] | [next] | [standalone]

#169664

On Mon, 04 Jul 2016 10:12:36 +0200
Victor A. Stoichita <victor@svictor.net> wrote:

> +1 for Avidemux as a GUI tool. To my knowledge it is the only gui 
> tool
> in linux which allows simple truncation of files 
> without reencoding.

project-x should also be able to do that.

Regards

Michael


.-.. .. ...- .   .-.. --- -. --.   .- -. -..   .--. .-. --- ... .--. . .-.

In the strict scientific sense we all feed on death -- even vegetarians.
		-- Spock, "Wolf in the Fold", stardate 3615.4

[toc] | [prev] | [next] | [standalone]

#169667

On Mon, 4 Jul 2016 12:01:02 +0200
<tomas@tuxteam.de> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On Mon, Jul 04, 2016 at 11:50:12AM +0200, Michael Lange wrote:
> > On Mon, 04 Jul 2016 10:12:36 +0200
> > Victor A. Stoichita <victor@svictor.net> wrote:
> > 
> > > +1 for Avidemux as a GUI tool. To my knowledge it is the only gui 
> > > tool
> > > in linux which allows simple truncation of files 
> > > without reencoding.
> > 
> > project-x should also be able to do that.
> 
> Care to share a link? Is it Free Software?

Yes it is. Should be in the debian-multimedia repo.

Regards

Michael



.-.. .. ...- .   .-.. --- -. --.   .- -. -..   .--. .-. --- ... .--. . .-.

The best diplomat I know is a fully activated phaser bank.
		-- Scotty

[toc] | [prev] | [next] | [standalone]

#169672

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Mon, Jul 04, 2016 at 12:06:18PM +0200, Michael Lange wrote:
> On Mon, 4 Jul 2016 12:01:02 +0200
> <tomas@tuxteam.de> wrote:

> > Care to share a link? Is it Free Software?
> 
> Yes it is. Should be in the debian-multimedia repo.

Thanks!

regards
- -- t
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAld6OMUACgkQBcgs9XrR2katrgCfZsHxG5P/igb/DgjsjySdk+d1
ePEAn1Kb50oJUB2T1TuIM9zrt8Y5pBup
=aoJh
-----END PGP SIGNATURE-----

[toc] | [prev] | [next] | [standalone]

#169668

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Mon, Jul 04, 2016 at 11:50:12AM +0200, Michael Lange wrote:
> On Mon, 04 Jul 2016 10:12:36 +0200
> Victor A. Stoichita <victor@svictor.net> wrote:
> 
> > +1 for Avidemux as a GUI tool. To my knowledge it is the only gui 
> > tool
> > in linux which allows simple truncation of files 
> > without reencoding.
> 
> project-x should also be able to do that.

Care to share a link? Is it Free Software?

thx
- -- t
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAld6M94ACgkQBcgs9XrR2kZwFQCeN7MPdTESPwJo1q1eMwWAPl/b
nzEAn0D36v9dik6AJCdhzUQM7b63ojnT
=FKcE
-----END PGP SIGNATURE-----

[toc] | [prev] | [next] | [standalone]

#169670

> project-x should also be able to do that.

Useful info, thanks! 

Project-x may be a bit more limited than ffmpeg and avidemux 
though as
it doesn't support H.264 (disclaimer on
http://project-x.sourceforge.net/).

[toc] | [prev] | [next] | [standalone]

#169671

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Mon, Jul 04, 2016 at 12:14:19PM +0200, Victor A. Stoichita wrote:
> 
> >project-x should also be able to do that.

[...]

> http://project-x.sourceforge.net/).

and more thanks :-)

regards
- -- t
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAld6OPkACgkQBcgs9XrR2kYngACfRHNgyuF1jFKXsLfooQfD1G4R
LyUAn2sCqJfa80Hr+Pbv3LyqvmBG8XV9
=01E/
-----END PGP SIGNATURE-----

[toc] | [prev] | [next] | [standalone]

#169669

>
> I usually use avidemux for that, telling it to copy the audio 
> and video 
> rather then reencode them. Then I do the transcoding 
> with handbrake.

+1 for Avidemux as a GUI tool. To my knowledge it is the only gui 
tool
in linux which allows simple truncation of files 
without reencoding.
Last time I checked, Openshot, Pitivi and Kino couldn’t just 
truncate
(copy) the streams, they always reencoded them. Apart from loss of
quality, this also means loss of time.

I also use the ffmpeg solution mentioned earlier. It’s simple and
effective if you don’t need frame accurate precision in 
your timings.
Technically truncation can’t actually start or stop on just any 
frame in
the video. Start and stop must be on a keyframe (one of the frames
encoded in full and not deduced from others, more on this here:
http://www.avidemux.org/admWiki/doku.php?id=using:cutting).

I'm not sure how ffmpeg deals with the situation where the 
timecodes you
specify don’t match actual keyframes. I suppose they shift the
start/stop time a bit earlier or later. It’s usually not a big 
deal but
sometimes it matters. If you want full control over this, 
avidemux’s gui
can help you set the trim markers to keyframes.

In case you don’t want to enable an extra repo just for avidemux, 
it’s
fairly easy to compile it yourself. I followed the instructions 
here:
http://www.avidemux.org/admWiki/doku.php?id=build:install_2.6 The 
gtk
gui crashes on my debian testing with xfce, but the qt one (which 
is the
default) works just fine.


Regards,
Victor

[toc] | [prev] | [next] | [standalone]

#169624

On Saturday 02 July 2016 15:33:32 brian wrote:
> Amy recommendations, please?

If it were sound, Audacity would be perfect.  No help to you though. :-(

How are you recording them in the first place?

Lisi

[toc] | [prev] | [next] | [standalone]

#169625

On Saturday 02 July 2016 10:33:32 brian wrote:

> Hi folks,
>
> There seem to be a number of video editing programs available, at
> least according to Synaptic's lists.
>
> I have a very simple need - I've got a LOT of VHS tapes to convert
> before my last VCR dies. I have it all sorted except for one thing - I
> have to play the tapes real time, so I leave them running. This means
> the resulting files will have a chunk of 'dead space' at the end of
> them if I'm not there when the video content finishes.
>
> I just need to remove that dead space - doesn't matter to me whether I
> do that on the MPG or after conversion to the MP4. I don't need all
> the bells and whistles that most video programs are likely to have, I
> just need to be able to see the video and then mark a point after
> which everything will be deleted - in other words, a very SIMPLE video
> editor.
>
> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
> plenty of CPU and RAM available.
>
> Thanks,

I have used kino for that quite a few times, mainly to edit out my shakes 
when I should have been using a tripod to shoot a wedding. There are 
others to be sure, but with a firewire card to address my now old Sony 
digital hi-8 handi-cam, kino can also run the handi-cam, including 
writeing the edited video back to the tape.  Thats been tested, but I've 
not figured out a reason I'd want to as the output is normally put in a 
video CD or a DVD for distribution to the participants. In doing that, 
some video quality is lost but the result on the viewers tv is still 2x 
sharper than a vhs tape, competing with an s-vhs machine but with less 
video noise.  The handi-cam outputs 720x480. And it was new several 
years before hi-def broadcasting began.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

[toc] | [prev] | [next] | [standalone]

#169629

On Sat 02 Jul 2016 at 10:33:32 -0400, brian wrote:

> There seem to be a number of video editing programs available, at
> least according to Synaptic's lists. 
> 
> I have a very simple need - I've got a LOT of VHS tapes to convert
> before my last VCR dies. I have it all sorted except for one thing - I
> have to play the tapes real time, so I leave them running. This means
> the resulting files will have a chunk of 'dead space' at the end of
> them if I'm not there when the video content finishes. 
> 
> I just need to remove that dead space - doesn't matter to me whether I
> do that on the MPG or after conversion to the MP4. I don't need all
> the bells and whistles that most video programs are likely to have, I
> just need to be able to see the video and then mark a point after
> which everything will be deleted - in other words, a very SIMPLE video
> editor. 
> 
> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
> plenty of CPU and RAM available. 

If the command line puts you off you wouldn't want to use

 ffmpeg -ss 00:00:00 -t 00:50:00 -i input.mp4 -acodec copy -vcodec copy output.mp4

[toc] | [prev] | [next] | [standalone]

#169635

On 7/2/16, Brian <ad44@cityscape.co.uk> wrote:
> On Sat 02 Jul 2016 at 10:33:32 -0400, brian wrote:
>>
>> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
>> plenty of CPU and RAM available.
>
> If the command line puts you off you wouldn't want to use
>
>  ffmpeg -ss 00:00:00 -t 00:50:00 -i input.mp4 -acodec copy -vcodec copy
> output.mp4


One of these years I'm going to try command line just to do it since
I've seen it mentioned a few times, mostly on accessibility lists for
persons with visual impairments.

Normally I use the fairly simple, fairly basic OpenShot for something
like this. BUT... It sounds like your files would be large. I a-sume
OpenShot could most likely handle something like that, but I don't
know yes or no because of no firsthand experience...

OpenShot is usually available in the most primary of package
resources. That was actually how I came to use it versus Avidemux. I
wanted one line and ONLY one line in my /etc/apt/sources.list file.
Using OpenShot helped me keep it that way... for now. :)

Have fun!

Cindy :)

-- 
Cindy-Sue Causey
Talking Rock, Pickens County, Georgia, USA

* runs with duct tape *

[toc] | [prev] | [next] | [standalone]

#169637

On Sat, 2 Jul 2016 17:39:58 +0100, Brian <ad44@cityscape.co.uk> wrote:

>On Sat 02 Jul 2016 at 10:33:32 -0400, brian wrote:
>
>> There seem to be a number of video editing programs available, at
>> least according to Synaptic's lists. 
>> 
>> I have a very simple need - I've got a LOT of VHS tapes to convert
>> before my last VCR dies. I have it all sorted except for one thing - I
>> have to play the tapes real time, so I leave them running. This means
>> the resulting files will have a chunk of 'dead space' at the end of
>> them if I'm not there when the video content finishes. 
>> 
>> I just need to remove that dead space - doesn't matter to me whether I
>> do that on the MPG or after conversion to the MP4. I don't need all
>> the bells and whistles that most video programs are likely to have, I
>> just need to be able to see the video and then mark a point after
>> which everything will be deleted - in other words, a very SIMPLE video
>> editor. 
>> 
>> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
>> plenty of CPU and RAM available. 
>
>If the command line puts you off you wouldn't want to use
>
> ffmpeg -ss 00:00:00 -t 00:50:00 -i input.mp4 -acodec copy -vcodec copy output.mp4

I did my first programming course back in 1978 on ICL kit - I have a
passing familiarity with CLIs. :) I admit that it hadn't occurred to
me, I think this will be first on the list to try...

Thanks for the hints, Brian and everyone else. 


Brian. 

[toc] | [prev] | [next] | [standalone]

#169638

[Multipart message — attachments visible in raw view] — view raw

On Sat, Jul 02, 2016 at 05:39:58PM +0100, Brian wrote:
> If the command line puts you off you wouldn't want to use
> 
>  ffmpeg -ss 00:00:00 -t 00:50:00 -i input.mp4 -acodec copy -vcodec copy output.mp4


I'd second this; it is a more direct way to ask libav to do the job, most of
the GUI tools will be essentially asking libav to do the same thing.

-- 
Jonathan Dowland
Please do not CC me, I am subscribed to the list.

[toc] | [prev] | [next] | [standalone]

#169746

[Multipart message — attachments visible in raw view] — view raw

On Sat, Jul 2, 2016 at 10:33 PM, brian <brian@meadows.pair.com> wrote:

>
> Hi folks,
>
> There seem to be a number of video editing programs available, at
> least according to Synaptic's lists.
>
> I have a very simple need - I've got a LOT of VHS tapes to convert
> before my last VCR dies. I have it all sorted except for one thing - I
> have to play the tapes real time, so I leave them running. This means
> the resulting files will have a chunk of 'dead space' at the end of
> them if I'm not there when the video content finishes.
>
> I just need to remove that dead space - doesn't matter to me whether I
> do that on the MPG or after conversion to the MP4. I don't need all
> the bells and whistles that most video programs are likely to have, I
> just need to be able to see the video and then mark a point after
> which everything will be deleted - in other words, a very SIMPLE video
> editor.
>
> Amy recommendations, please? 64-bit Debian testing, XFCE desktop,
> plenty of CPU and RAM available.
>

I would use any video player to check which are the dead sport and just use
ffmpeg and just copy option to not loose quality on re-encoding.  Otherwise
openshot or cinerella for gui



>
> Thanks,
>
>


-- 
C <http://javadevnotes.com/java-read-text-file-examples>o
<http://javadevnotes.com/java-float-to-int>d
<http://javadevnotes.com/java-double-to-int>i
<http://javadevnotes.com/java-int-array-examples>n
<http://javadevnotes.com/java-print-array-examples>g
<http://javadevnotes.com/prime-number-program-in-java>

[toc] | [prev] | [standalone]

Back to top | Article view | linux.debian.user

csiph-web