Avidemux Forum

Avidemux is perfect for editing mkv files.

Don't use avidemux for mp4 editing,

For mp4 editing, use a programme called smart cutter for dv and dvb, which can be found here.

https://www.fame-ring.com/smart_cutter.html

This awesome programme lets you edit on frames, so you don't need to worry or edit o keyframes.
So the start and end of your edit, can be cut on frames and not keyframes.

Saving a MKV sample I have here with a TrueHD audio track to MKV in copy mode works fine for me. If you use Windows, please start Avidemux (the latest available nightly, of course), reproduce the problem, close Avidemux, then attach admlog.txt from %localappdata%\avidemux\ to your reply as the first troubleshooting step.

By the way, if you have multiple Avidemux installations on your system, please make sure that they are installed in a separate previously empty directory each and never, absolutely never run simultaneously.

Thank you for your reply.
I tried the 2.8.1 nightly version, I still get the same error message when saving. Any advice?

You could start at https://avidemux.org/smif/index.php/topic,19456.msg91175.html#msg91175

To add Yadif filter outputting deinterlaced picture for each field, add

adm.addVideoFilter("yadif", "mode=1", "parity=0", "deint=0")
at the appropriate location (after adm.videoCodec()), paying attention to indentation (Python uses indentation for code nesting).

If you export to MP4, please note that the list of parameters has been extended in current nightlies:

adm.setContainer("MP4", "muxerType=0", "optimize=0", "forceAspectRatio=False", "aspectRatio=1", "displayWidth=1280", "rotation=0", "clockfreq=0")
(displayWidth added). "optimize=0" disables time-consuming rewrite of the entire output file at the cost of making it not fit for streaming.

I am looking for a script to perform exactly the function described in the initial post. Apparently the attached script is no more. Any pointers to it or a more current version would be greatly appreciated. 

Thank you for the pointers. I will try the nightly build and see if the crash occurs, then post back.

Should be fixed for such Matroska source videos by [1] and [2].

Quote from: rado84 on May 18, 2022, 07:47:26 PMThen it seems H265 (my conversion) is a lot faster than H264. The above mentioned episodes of "Glee" were all H264, whereas my files of "Supergirl" were all converted to H265 using NVENC.

How old is your Avidemux version? Prior to 2.8.0 (prior to May 23, 2021 for MP4 and prior to Sept. 20, 2021 for MKV), frame type (P- vs B-frames) in HEVC video streams was not decoded during indexing, posing a problem for copy mode. Please make sure you use the latest 2.8.1 nightly, it might cancel out the current speed advantage of HEVC you experience.

By the way, at least for MP4, you can cancel decoding of frame type. This is reasonably safe as long as you don't use copy mode, just all B-frames in the not yet indexed part of video will remain incorrectly marked as P-frames.

Does not work for you ... what kind of attitude is this. Then make it work for you. For instance you can re-configure your arrow buttons to move by a fraction of a second. In MPV, when at desired frame hit Ctrl+s and your frame is in a file. Again, configure MPV screenshots properly to get desired compression and file type.

Help yourself: https://mpv.io/manual/master/

Quote from: Blues on May 17, 2022, 05:46:38 PMYou can take screenshots with players if you wish.

I know that but that doesn't work for me. I mean, the method is of no use to me. I prefer using scrot to make a screenshot of what I see the way I see it on the screen. However, sometimes I can't react fast enough to press "Pause" at the exact frame I wanna capture because it changes too fast. When that happens, I run the video file through avidemux and manually jump to the frame I wanna capture.

Quote from: eumagga0x2a on May 17, 2022, 06:38:45 PM

Quote from: rado84 on May 17, 2022, 12:43:27 PMWhat is it that determines how fast the file will be read?

Container type and properties as well as the video codec.

Then it seems H265 (my conversion) is a lot faster than H264. The above mentioned episodes of "Glee" were all H264, whereas my files of "Supergirl" were all converted to H265 using NVENC.