dv video stripped from camcorder editor to trim end of file?

[sdowney717]

I want to trim off the end. I tried openshot. I can trim off the end.
Problem is it can only save it as an encoded export???

Is there an editor that can accept DV video and edit it, then just save the file without having to do a compression encoding? Which takes hours.

This is like loading a document into word, then make changes and when you goto save the file, it forces you to convert it to another format.

[vanadium]

Try avidemux, a linear video editor.

[sdowney717]

avidemux can not open a dv file that was captured with kino.

dv video is what you get captured with kino. I am able to open those files in all the other editors I have tried.

[sdowney717]

What I was interested in was capturing video from a digital8 camera.
Then edit the film, strip out blank video.
then save the dv file which so far is impossible.

then convert the edited dv video file using handbrake to h264.
Handbrake has a special feature to enable web video streaming. None of the others mention this.

So far I can not do these things.

[sdowney717]

What’s special about DV non-linear editing?

DV is compressed just enough to be able to stream into and out of current-day PCs and Macs, and the availability of inexpensive 1394 I/O cards and fast SCSI-2 hard disks means that high quality video storage and manipulation on desktop computers is now possible for the first time without having to spend a king’s ransom on specialized RAID arrays and proprietary codecs.

DV can be stored and manipulated in native form, without transcoding to JPEG, MPEG, Wavelets, or the like. The same high quality seen on DV tape is maintained in the computer.

Ha, maybe for windows only!
http://www.videouniversity.com/artic...o-know/#linear

Does anyone have thoughts on this? I can also boot windows7, what program would work there for dv video editing?

[vanadium]

http://www.avidemux.org/admWiki/doku.php?id=general:faq

???? Avidemux won't open my DV or miniDV file ????

Avidemux can only open type-2 DV files at the moment. Two types of DV files exist: type 1 and type 2 (read the information at Microsoft.com about the differences between them). However, some cameras produce type-1 DV video. To convert them to type-2 DV, you can either use the Canopus DV File Converter or the Ulead DV Converter.

That could be the problem with Avidemux, unfortunatelly.

Command line splitting with avconv or ffmpeg may be possible, but is far less convenient indeed.

The idea of non-linear video editors is that you throw the raw video at it, then compile your movie, and write it out in any format suitable for the specific task it is intended for. However, I imagine that it would be convenient, especially when you want to archive the raw video, to clean these files out a bit, quite fast and without loss in quality, i.e., without transcoding. That would typically be a job for avidemux, but unfortunatelly, it fails here, and I would not know of an alternative under linux.

[evilsoup]

It's very far from ideal, but until someone posts a GUI option, you can remove the end of a video with:

avconv -i input.avi -c copy -t 00:15:32 output.avi

That will copy everything in the file up until 15 minutes, 32 seconds. Obviously, figure out when you want the video to end. You can similarly use the -ss option to cut off the beginning of a video:

avconv -i input.avi -c copy -ss 00:03:30 -t 00:05:20 output.avi

This will begin copying at 3 minutes 30 seconds, for a length of 5 minutes 20 seconds.

The best NLE I used on Linux, back when I was trying out the options a few years ago, was Cinelerra. I don't know if it can do what you want, though, and it's not available in the repos - you can install it from this PPA, and find out for yourself if it'll suit your needs.

[sdowney717]

I am trying to grab the video editing concept.
What happens is I capture the video as dv video.

How about if I convert the dv video first using handbrake to h264.
Then edit it in openshot.
Will it then need to be rencoded again under export?
If I edit multiple times and it has to re-encode over and over, it is going to loose quality every time?

Seems like the video editing tools are not very good if you cant just re-save the original encoding with the modifications and have to re-encode. I am currently doing an export to h264 in openshot. I chose high quality. The file is half done and is currently at 3gb. start time 10am currently 1:18pm

Original dv video file is 13gb.
Handbrake would have already finished, typically was taking 40 minutes.

There is a lot of settings for openshot.
target MP4(h.264)
video profile HDV 1440x1080p 29.97 fps
Quality high

I have no idea if this is waste of time with these setting.

Likely waste of time as the original was not hdef 1080p.
Original was 480p from a digiatal8 camera.
So then what settings would you choose in openshot?

[FakeOutdoorsman]

How about if I convert the dv video first using handbrake to h264.

That is an unnecessary step. H.264 is not a very editor-friendly format compared to DV although it doesn't mean that it can't be done.

Will it then need to be rencoded again under export?

Yes.

If I edit multiple times and it has to re-encode over and over, it is going to loose quality every time?

If depends on the formats involved. Yes, if you edit, export a lossy format, import, edit, export a lossy format, import... There is generational loss each time you re-encode to a lossy format over and over (using the resulting output as the next input for re-encoding); although if re-encoded properly you may not notice.

So then what settings would you choose in openshot?

I would import the original DV files in Openshot, edit, and then export to the desired format depending on what I was planning on doing with the output (DVD, YouTube, web site, etc). You didn't mention anything in particular, so I can't give much of an exact suggestion.

When working with a format that is not supported by an editor, or something that is not very easy to edit you can re-encode to a lossless intermediary:

ffmpeg -i input -c:v huffyuv -c:a pcm_s16le output.mkv

Or possibly output.avi if your editor doesn't grok mkv. The lossless file will be huge, but that's ok; it is usually only temporary and will minimize, but possibly not eliminate, due to various factors, any potential loss due to re-encoding. It should also be fairly easy on the editor.

In reality, if I were simply trimming junk out of the DV files, I would probably do it like evilsoup showed (but using ffmpeg instead of course), and then concatenate the resulting DV files together using cat, or the various concat tools in ffmpeg as shown in How can I join video files?, but that doesn't mean that you should do it this way. Openshot might be easier and work just fine.

[evilsoup]

Video editing programs will create files of their own, these are essentially lists of every change made to the input videos. This is what is made when you hit 'save', rather than 'export' or 'render', generally speaking. If you're willing to keep your original video around, and you keep this 'edit list' file around, you will be able to go back and make changes to the video, and then export a brand-new copy without introducing generation loss.