[Bf-vfx] Bug when using va/b setting in edl file?

Sun Nov 16 00:48:16 CET 2014

Oh, great! Thanks for pushing the fix.

The trouble with the EDL format is that it was invented for the analog age.
I mean for cutting negatives in the film lab or onlining tapes. And ever
since films where edited on computers the format has been altered to fit
that purpose instead making a mess of things...

I found a bit more on the format (and the format differences) here (but
still old 1995!): http://www.edlmax.com/edlmaxhelp/edl/maxguide.html
And another EDL specification here: http://edl2aaf.sourceforge.net/
This one includes even more EditModes: {NONE, A, B, V, A2, A2\V, AA, AA\V}

On a different note - using clip/file names specified in comments instead
of using reel name:
In order to solve the problems with file name vs. reel name and the length
limitation of the reel name a workaround has been added to the EDL comments
as described here (FCP7 manual):
https://documentation.apple.com/en/finalcutpro/usermanual/index.html#chapter=96%26section=3%26tasks=true

"How Clips from an EDL Are Named:
Clips imported from an EDL are named in one of two ways. If the EDL was
exported from a nonlinear system, the name is exported like this:
* FROM CLIP NAME: CLIP NAME HERE
where CLIP NAME HERE is the name of your clip. Final Cut Pro can recognize
clip names exported from the following nonlinear editing systems: Final Cut
Pro, Media 100, and Avid. In all other cases, Final Cut Pro uses the reel
name as the clip name."

Using comments to specify file names has become a standard, however I've
seen edl files where the clip name had a file extension and even some with
the full file path specified too. I've also seen some with the clip name
specified in a comment line but saying * COMMENT: instead of * FROM CLIP
NAME:

Anyway, thanks for pushing that fix.

2014-11-15 23:38 GMT+01:00 Campbell Barton <ideasman42 at gmail.com>:
>
> Your right, this was a bug in the importer,
> pushed fix
https://developer.blender.org/rBA0a853ec83c64764d3d14cc0bdface353420934aa
>
> The other changes you mention may be OK, but not sure which EDL spec
> they're from.
> the CMX spec doesn't seem to contain them (though its scanned images
> so I couldn't search)
> http://xmil.biz/EDL-X/CMX3600.pdf
>
> While writing the importer it became clear this format is very loosely
> defined, it maybe OK to extend support, but like to include a
> reference to the spec in the commit, and that its compatible with
> existing CMX EDL files.
>
> On Sat, Nov 15, 2014 at 11:32 PM, Tintwotin tintwotin
> <tintwotin at gmail.com> wrote:
> > Another thing, but still related, I found some missing <EditMode>
settings
> > in the Blender EDL import script used by ex. Lightworks, Sony Vegas a.
o.
> >
> > Ex. edl from Lightworks:
> > 001  IBM      AA/V C         00:00:05:02 00:00:12:17 00:00:05:01
00:00:12:16
> >
> > It's the 'AA/V' setting which is currently not supported by the Blender
edl
> > import script. In this link a few more settings not used by the Blender
edl
> > import script can be found:
http://www.niwa.nu/2013/05/how-to-read-an-edl/
> >
> > Info from that page:
> > AA/V – Video and audio on channel 1 and 2
> > VA1A2 – Video and audio on channel 1 and 2
> > A12V – Video and audio on channel 1 and 2
> > AUD3 – Audio only on channel 3
> > A3 – Audio only on channel 3
> >
> > In line 225 of  io_sequencer_edl/parse_edl.py they can be easily be
added:
> > EDIT_DICT = {
> >     "none": 0,  # TODO, investigate this more.
> >     "v": EDIT_VIDEO,
> >     "a": EDIT_AUDIO,
> >     "aud3": EDIT_AUDIO,
> >     "a3": EDIT_AUDIO,
> >     "aa": EDIT_AUDIO_STEREO,
> >     "va": EDIT_VIDEO_AUDIO,
> >     "aa/v": EDIT_VIDEO_AUDIO,
> >     "va1a2": EDIT_VIDEO_AUDIO,
> >     "a12v": EDIT_VIDEO_AUDIO,
> >     "b": EDIT_VIDEO_AUDIO,
> >     }
> >
> > And just to clarify where the fix from previous post could be added:
> > When the VA/va/B/b settings are used, adding a video clip too can be
done
> > very simple with the stuff added in here in line 173 of
> > io_sequencer_edl/import_edl.py:
> > if edit.edit_type & (parse_edl.EDIT_VIDEO | parse_edl.EDIT_VIDEO_AUDIO):
> >
> > BTW. the reason I've come across these things is because I'm working on
a
> > mlt to blender friendly edl script:
> > http://eyeframeconverter.wordpress.com/mlt2edl/
> >
> > 2014-11-14 19:46 GMT+01:00 Tintwotin tintwotin <tintwotin at gmail.com>:
> >>
> >> ideasman42 suggested that I posted here about this:
> >>
> >> Background:
> >> I'm using the EDL notes from the Blender import_edl.py script in order
to
> >> code a python script to convert ShotCut.org MLT files into Blender
friendly
> >> EDLs:
> >>
> >> The Blender EDL notes:
> >>>
> >>> * <EditMode>: 'V' | 'A' | 'VA' | 'B' | 'v' | 'a' | 'va' | 'b' which
> >>> equals Video, Audio, Video_Audio edits (note B or b can be used in
place of
> >>> VA or va).
> >>
> >>
> >> Bug?
> >> That's how I noticed that when VA/va/B/b settings (which equals
> >> Video+Audio) are used, only an audio clip is added to the time line,
and no
> >> video. With va I suppose that both a video and an audio clip should be
> >> inserted?
> >>
> >> How to reproduce:
> >> Open this EDL example, and assign a video clip with audio. It must be
> >> longer than 30 sec.
> >>
> >>> * EDL example:
> >>> 1 test va C 00:00:00:00 00:00:30:00 00:00:00:00 00:00:30:00
> >>
> >>
> >> How to fix:
> >> When the VA/va/B/b settings are used, adding a video clip too, can be
done
> >> very simple with the stuff I added in bold here in line 173:
> >>
> >>> Code:
> >>> if edit.edit_type & (parse_edl.EDIT_VIDEO |
parse_edl.EDIT_VIDEO_AUDIO):
> >>
> >>
> >> This way a video clip is added too, when va/b setting is used.
> >>
> >> Is it a bug or expected behavior?
> >> So the question is if using the va/b setting should add both a video
clip
> >> and an audio clip, or is the current behavior what is to be expected?
> >
> >
> >
> > _______________________________________________
> > Bf-vfx mailing list
> > Bf-vfx at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-vfx
> >
>
>
>
> --
> - Campbell
> _______________________________________________
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> Bf-vfx at blender.org
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