1/25/2024 0 Comments Avidemux sound out of sync merge![]() Maximum Frame-Average Light Level : 530 cd/m2 Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2 Mastering display color primaries : Display P3 Matrix coefficients : BT.2020 non-constant Writing library : ATEME Titan File 3.9.6 (4.9.6.2) My mistake in handbrake.įormat/Info : High Efficiency Video Codingįormat profile : Main format : SMPTE ST 2086, HDR10 compatible SOLVED: I believe I have figured it out! The resolution is not the same for some segments. Not sure about 6-7 as it's a fade to black in the original file. ![]() ![]() I checked the files before merge and the frames are there.ĮDIT: Actually the following points of merge have no black frames: 5-6, 7-8, 8-9. So sync with the original audio is not an issue but only the image. When using the merge function on Shutter Encoder what I am getting is a few black frames instead of the image just before the point of merge for each segment. I then rescaled the frame of the image for 5 of these segments (every even file). Importantly it also copies already present chapter markers as well and includes them in the resulting mp4.Īt the end you will have a working mp4 with chapter markers you created and no quality loss at all from the original mp4 without chapters you started with.Hello, I am working on a video file which I cut into 10 segments cutting properly on I-frames using Avidemux. It just copies the video and audio streams as they are and remuxes back to mp4 container format. Use that as it involves no re-encoding at all. There is a built-in preset called mp4 (stream copy). ![]() Now to get back to mp4 again with the mkv chapters intact, you need to losslessly remux again using XMedia Recode. The cut editing by Avidemux is lossless and the remux conversion to mkv is also lossless. Now you have an mkv version of the original mp4 with working chapters and no lossy re-encoding required. ![]() Mux the mp4 into an mkv and save the chapters you created into the mkv after the muxxing has finished. You're going to create an MKV, but this is just a temporary step in order to get back to MP4+chapters again. Now insert the mp4 into the open session of MKVToolNix with the chapters you've created in it. You edit the names of the chapters too in here if you wish, or just leave blank or have generic names like Chapter 1, Chapter 2 etc. Use the time markers displayed in Avidemux to create a list of chapters at your chosen time points in MKVToolNix GUI (which has an excellent tool for doing this). Edit video losslessly as necessary in there cutting off extraneous video pre+post, resave then reload in Avidemux. Ancient thread resurrection, but here's how I do it: ![]()
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