For lossless video encoding, why is PCM over FLAC preferred?

[rkk]

Hi,

I'm not sure if this is the right section to ask this as there is no lossless section.

I just noticed that in all lossless video encoding threads, no matter what lossless video codec is chosen, for the audio eider raw copy or PCM is used.

As far as I'm aware FLAC is lossless and should be perfectly suitable to further losslessly compress the video file.

From my own tests with Cyberlink Powerdirector files with HuffYuv+FLAC+MKV or FFV1+FLAC+MKV were decoded properly.

So my question is: Is there any downside for using FLAC as lossless audio compression over PCM?

[ChiDragon]

Usually people use lossless video for intermediate processing, with tools that are geared toward the AVI container and not MKV. If you're using MKV, may as well use FLAC for the audio I guess.

[Ghitulescu]

You may want to edit the thread, title and question, for FLAC is Audio (notice the A in FLAC) not video.
If your question is why FLAC is not used when editing video+audio, the answer is simple, most cutters know better how to cut DOlby and LPCM (that's WAV) than FLAC.