Extracting Video

[magic144]

Never really noticed this before, but just ran a movie-only encode through RB 1.20.4 Pro and in the log for Phase II ENCODING, all of the segments (cells I presume) cause the log entry "Creating M2V for VTS_01 segment n"

except

segment 14, which outputs "Extracting Video for VTS_01 segment 14" - what does that mean and what's the difference here? - does this imply that this cell has NO compression/reencoding? - fyi, this encode had a reduction level of only 91.3%

thanks

m

[jdobbs]

That was a part of this change:

- Made adjustments to the sizing algorithm in order to
prevent oversizing on oddly formatted DVDs that have
huge numbers of very small segments. (v1.20.0)

Yes, it means the segment is less than 60 frames total -- and it will not be compressed at all.

Several encoders/versions have had problems encoding very small segments and would crash when the bitrates were too limited. So previous versions of DVD-RB would increase the bitrate to prevent that from happening. It just so happens that sometimes the bitrate increase would be enough that you were actually making the output larger than the original... which, of course, is silly. If there were a lot of them -- it would cause oversizing. So in those cases DVD-RB will simply keep it intact now.

[magic144]

thanks for that explanation - no wonder I hadn't noticed it before!

by the way, IfoEdit shows the segment in question as being 70 frames, but I suppose that might be playback frames (~30fps) rather than stored/encoded frames (~24fps)? - presumably the 60 frame size you mentioned was for ENCODED frames???

[jdobbs]

This 60 is actual frames as stored (without taking pulldown into account). So that probably is the case.