What is the default x264 8 bit setting for lossless .mp4 and .mkv files?

[Guernsey]

I am trying to convert some lossless .avi files to .mp4 or .mkv files but the thing is, I am not sure what is the default for converting to lossless .mp4 or .mkv. I want to do this in Virtualdub2 to make but is the default settings for any other type of converter such as Handbrake, RipBot, etc.?

[LigH.de]

To encode to lossless AVC video, you need to specify quantizer 0 (as documented in the help screen of x264):

      Lossless:
            x264 --qp 0 -o <output> <input>

Please note that consumer players may not play lossless AVC. PC media players should be able, especially when using decoders based on ffmpeg / libavcodec. This means e.g. VLC, MPC-HC, MPC-BE, or installing LAV Filters for any DirectShow compatible player.

[Guernsey]

What about in the Windows version of those very same codecs? Like x264 8 bit?

[davexnet]

What about in the Windows version of those very same codecs? Like x264 8 bit?

Yes, that's the default, the command given produces such a file

[LigH.de]

The codec does not behave differently on different operating systems.

[netmask56]

Have you considered simply using MKVToolNix? No re-encoding quality in = quality out, same with file size.

[LigH.de]

MKV will be able to contain the original video format from the AVI. MP4 requires one of a few supported video formats.

[Guernsey]

To encode to lossless AVC video, you need to specify quantizer 0 (as documented in the help screen of x264):

      Lossless:
            x264 --qp 0 -o <output> <input>

Please note that consumer players may not play lossless AVC. PC media players should be able, especially when using decoders based on ffmpeg / libavcodec. This means e.g. VLC, MPC-HC, MPC-BE, or installing LAV Filters for any DirectShow compatible player.

How do you translate this into the x264 configuration in Virtualdub2?

[LigH.de]

Just study the user interface.

[ProWo]

You can also use ffmpeg with -crf 0 for lossless avc/hevc encoding

[LigH.de]

CRF 0 may work too; but Constant Quantizer 0 is the primarily documented method.