Question Which programs to cut movie fragments without reencoding?

[kacper6768]

Are there any programs to cut movie fragments without the need to reencode the movies and to make it possible to set a higher volume of the movie without reencoding the video, such as Mp3Gan but to support movies not only in mp3 format? If I want to make some minor changes to the movie, even the smallest one, does it mean that I have to reencode the whole movie?

 

[Lafong]

Free Video Editor is said to be a lossless simple editor.

https://www.dvdvideosoft.com/free-video-editor.htm

VidCutter x64 is another. Not sure where you can find it.

I don't know if you can alter volume with them.

BSFAG supposedly can adjust volumes, but I think it involves a re-encode.

BS Programs

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It requires mp3gain and FFMPEG.

I've never used any of the above.

You can open a lot of video files in Audacity and then adjust the volume of the audio track. Not sure if that meets your requirements.

 

[TerryLaze]

Video encoders are compressors, compression works by taking a chunk of data and finding similarities that you can write in short form, the longer the chunk the better the compression, full video one chunk=best compression.

To cut without reencoding, the video has to have chunks and you have to cut on those chunks and nowhere else. The frames you can cut on are named i-frames.

 

[dwd999]

Free Video Editor is said to be a lossless simple editor.

https://www.dvdvideosoft.com/free-video-editor.htm

VidCutter x64 is another. Not sure where you can find it.

I don't know if you can alter volume with them.

BSFAG supposedly can adjust volumes, but I think it involves a re-encode.

BS Programs

Welcome to my BS Apps website! This is my repository of small computer programs or applications I wrote for fun and become handy. They are also my playground on enhancing my programming skill. I put them here to share to everyone. Hopefully you'd find them useful, too. I've been building many

sites.google.com

It requires mp3gain and FFMPEG.

I've never used any of the above.

You can open a lot of video files in Audacity and then adjust the volume of the audio track. Not sure if that meets your requirements.

Using Audacity what someone would have to do is have Audacity save the new sound track and then use something like mkvtoolnix to combine the new sound track with the existing video.

 

[Grobe]

Avidemux can do this, i.e. lossless cut of video + adding filter to audio.

Avidemux - Main Page

 

[klavs]

Are there any programs to cut movie fragments without the need to reencode the movies and to make it possible to set a higher volume of the movie without reencoding the video.

You can use FFMPEG for that.

Cut Example:

ffmpeg -ss 30 -i movie1.wmv -c copy -t 10 movie2.wmv

See also:
https://superuser.com/questions/138331/using-ffmpeg-to-cut-up-video

Volume Example:

ffmpeg -i movie1.mp4 -af volume=7 -vcodec copy movie2.mp4

See also;
https://stackoverflow.com/questions...to-change-volume-with-no-reencode-with-ffmpeg

Often some extra switches are required in order not to reencode the video/audio. FFMPEG is a mature application and has a good user base, so it's easy to find guides and examples.

 

[kacper6768]

Which program can combine 2 or more videos into 1 without reencoding? Would such videos have to be of identical codec and resolution and frames per second?

 

[klavs]

Which program can combine 2 or more videos into 1 without reencoding? Would such videos have to be of identical codec and resolution and frames per second?

FFMPEG can do that, but it requires that the source files share the same encoding. Create a text file named vidlist.txt in the following format, where you replace the filenames with the names of the clips you want to concatenate:

file '/path/to/clip1.mp4'
file '/path/to/clip2.mp4'
file '/path/to/clip3.mp4'

Then issue the command:

ffmpeg -f concat -safe 0 -i vidlist.txt -c copy output.mp4

See also:
https://stackoverflow.com/questions/49371422/how-to-merge-two-videos-without-re-encoding

 

[Lafong]

Which program can combine 2 or more videos into 1 without reencoding? Would such videos have to be of identical codec and resolution and frames per second?

I think Free Video Joiner can do a simple combine without re-encoding, but I think you'd have problems if you wanted to combine a wmv with an mp4. I've used it, but not extensively.

I'd certainly think you can go farther with more advanced programs like Avidemux, but they are much more complex and have a steeper learning curve. Free Video Joiner has an extremely simple interface.