After rendering a 2 hour long video in VirtualDub after applying filters and deinterlacing with Avisynth. I want to do edits in Premiere as i prefer their transitions and ease of use when editing longer files.
After muxing the video and audio back together and importing it into premiere, the picture is all washed out. It isn't like this when i preview it in a media player. So just assumed it's Premiere's preview window playing up.. but after i render it's still like that! I then did some experimenting. I then imported the avi file, before muxing was applied/no audio, and low and behold the colours are all normal, no bright blacks. Then i import the long muxed clip right next to it, and it changes to washed out. I can tell the difference by clicking between the two in the timeline. So i think this might be a problem caused by muxing the original audio to the video. I also had to offset the audio due to the slight delay after extracting the files via DGIndex.
And yes the color space is correct after i applied "No change" in vdub, with Lagarith.
Has anyone ever heard of this before and know how to fix it?
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Sounds like a TV vs PC levels problem. I don't know enough about Adobe PP and how to deal with mismatched levels in PP. Normally I can just feed it TV levels and it just about always gives me TV levels back.
What codec/format of video and audio are you feeding into PP to get raised blacks?
One practical way to fix it is to not premux. Bring the audio and video in separately, as you did, and group the video and audio together on the timeline to bind them in sync.
I agree, an RGB/YUV flag is getting messed up somewhere in the muxing.
Doesn't Premiere have a problem with levels with some codecs/containers? It assumes full range YUV rather than limited range? This has been mentioned in these forums many times. Or maybe it was Vegas? I don't use the programs, but you should be able to convince it your source is limited range.
Last edited by jagabo; 15th Sep 2020 at 07:50.
Well here is the MediaInfo to give all the stats of the video/audio.
General Complete name : F:\A Video Files\DVD Rips\Video.avi Format : AVI Format/Info : Audio Video Interleave Format profile : OpenDML File size : 114 GiB Duration : 2 h 8 min Overall bit rate : 127 Mb/s Writing application : Lavf58.45.100 Video ID : 0 Format : Lagarith Codec ID : LAGS Duration : 2 h 8 min Bit rate : 127 Mb/s Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate : 50.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Bits/(Pixel*Frame) : 2.753 Stream size : 114 GiB (100%) Audio ID : 1 Format : MPEG Audio Format version : Version 1 Format profile : Layer 2 Codec ID : 50 Duration : 2 h 8 min Bit rate mode : Constant Bit rate : 256 kb/s Channel(s) : 2 channels Sampling rate : 48.0 kHz Compression mode : Lossy Stream size : 235 MiB (0%) Alignment : Aligned on interleaves Interleave, duration : 24 ms (1.20 video frame)
I just don't get why the colours are normal when i import the same AVI file without the remuxed audio.
Use a test pattern that easily lets you check black and white levels. Try the one in this post:
See where in your workflow you are getting a levels shift.
72ms is about 3.5 frames at 50fps. You can easily slip any offset in the timeline before you group.
Avisynth alongside your source video?
One thing i noticed in that line of script is ConvertToYV12(matrix="pc.601")
I never use this since it's already YUV to begin with but i guess it wouldn't hurt to do so and make sure it stays in rec.601.
By the way, I posted a similar DV AVI levels video here:
The images have an error in the Y=0 bar but the file was updated with a corrected version.