How to enhance old video quality

[Stephen_Liu]

Hi@PoisonedSlice,

What I meant is trimming a video into sections, not all video on the DVD ripped by the profession shop. There are 5 video on the DVD.

We can’t apply one set of filters throughout a video. The result won’t be good. I check the video first, running Shotcut and taking down the starting and ending times on each sections which I need to trim. Trimming is quite simple and straight-forwards running ffmpeg on Terminal;

Example:
$ ffmpeg -ss 00:07:53 -t 00:18:32 -i input-video.mp4 -vcodec copy -acodec copy output_video1.mp4

00:07:53 - starting time
00:18:32 - ending/terminating time

We have the 1st section of video to be edited with 1st set of filters

Repeat the step to trim the 2nd section of video, and so on

To merge the sections after editing is quite simple running MP4Box
$ MP4Box -add output_video1.mp4 -cat output_video2.mp4 new_video.mp4

Alternately we can imported them to Shotcut merging them.

[PoisonedSlice]

Sorry for the delay in responding.

Yes, but I was answering the question regarding upscaling. Once you import the first of those videos into your Shotcut project, it will set the correct video mode and aspect ratio for you.

@Stephen_Liu

We can’t apply one set of filters throughout a video. The result won’t be good. I check the video first, running Shotcut and taking down the starting and ending times on each sections which I need to trim. Trimming is quite simple and straight-forwards running ffmpeg on Terminal;

FFmpeg is a handly tool but in this case there is no need for any of that and you are making it much more complicated than it needs to be. You simply import the rest of the videos, add them to the timeline and then you can proceed with the trimming, which can easily be done inside shotcut without the need for ffmpeg on a command line. Simply split the video using s at the desired sections inside shotcut and delete the bits you don’t want (or you can also choose to set an in and out point but that is a different conversation). Then you apply the filters as you see fit to the sections remaining and export when you are done.

Shotcut can do everything you are after here; the video tutorials are well written and you wil benefit greatly from watching them.