12 Apr
2013
12 Apr
'13
1:31 p.m.
Hi,
"1. encode only the frames within the trimmed portion."
For me it should be the only way or that means you'd ingest dozens of Go
into your servers only for some short playback ?
Best regards,
G.
Le 12/04/2013 11:16, Carl Hetherington a écrit :
On Fri, 12 Apr 2013, Carsten Kurz wrote:
Hi Carl,
nice work. Used a few other DCP creating tools before, was a bit
sceptical at first about your 'all-in-one-converter'. However, great
functionality in a single package, and, most important for me, all
processing/conversion steps for video and audio explained and
documented.
Thanks!
Now, I'm using the most recent version
0.83/64bit Windows. Seems the
Trim frames feature doesn't work. Whatever numbers I dial in for
Start/End, it will always create the full length DCP from my 1:31:42
source. All dialogs show these 137564 frame count (also
'Properties'). Currently I have Start 1 and End 100, but it's
creeping through the full 90mins of footage.
There's a bit of a complication here. I think there are two ways of
doing the trim:
1. encode only the frames within the trimmed portion.
2. encode all frames and then mark the portion to play in the
associated XML metadata.
(1) would be preferable in most cases, except for the situation when:
i) you encode a big DCP with a start trim of, say, 48 frames.
ii) you decide that after all you want a start trim of 24 frames.
Now with approach (2) this would just be a rewrite of the metadata,
which is quick. For (1) I see no way of doing it other than encoding
the new frames and then copying the entire remainder of the MXF from
the old to the new.
In other words, it's a trade off between making it quick to alter
start and end trims (but slower if the trims are large, as unnecessary
encoding will be done) and making it quicker to do big trims (as the
unnecessary frames will not be encoded).
Maybe it should be an option, or maybe it should just go for approach
(2) in all cases. I'm not sure. Any thoughts?
Regardless of all that, if the DCP you make with the current version
does not *play back* with the trims in place, something else is going
wrong!
The trim parameters do not show up in the log
file. Should they?
They don't, I think; I should add them.
Best regards
Carl
- Carsten
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