[Bf-funboard] VSE proxies

[Olivier Haveloch]

I have faced similar problems.


On Sat, Aug 22, 2015 at 12:31 PM, Knapp <magick.crow at gmail.com> wrote:
> I would be willing to bet that your computer is shifting from ram to swap,
> a very slow memory.
> I would show a diagram of ram and swap usage and then to the load and watch
> it.
>
> On Sat, Aug 22, 2015 at 12:12 PM, Antony Riakiotakis <kalast at gmail.com>
> wrote:
>
>> Hi,
>>
>> Just for the record, bugs have a notorious tendency not to get fixed
>> without a bug report and a reproducable crash case.
>> If you make one for us I can guarantee it will get fixed if we can
>> reproduce it.
>> It sounds a bit like this is an out of memory issue, but hard to tell for
>> sure.
>>
>> Not sure if generating proxies with sound is really useful (there is
>> no sound proxy). What you want is just
>> a movie in a lower resolution but this is just a low res
>> export/render, not a proxy. It's just a different use case. Proxies
>> are really meant to be used for fast reading from within blender.
>> That's the use case, not hacking a quick export for other programs.
>>
>> You are asking for blender to be able to detect proxies with arbitrary
>> names in arbitrary locations
>> without doing this per strip. While ideally, we would bind a proxy to
>> a resource (movie/image file) instead of a strip,
>> I don't think that having such an arbitrary system is doable. Either
>> you accept a specific name and directory structure
>> and the program can use that to determine which proxy to use, or you
>> assign the file to the resource explicitly.
>>
>> On 22 August 2015 at 12:03, maximo remedios <maximoremedios at gmail.com>
>> wrote:
>> > Hi,
>> >
>> > Thanks for your replies. Well if it's a bug and if it's something that
>> > eventually be fixed, great. For info I can import maximum ten 4K files
>> at a
>> > time and when you do so, blender freezes for 30 secondes (not responding)
>> > and eventually unfreezes and you'll see the files in the VSE and only
>> then
>> > you can select image files to generate proxies in a batch way. I have
>> > nearly 200 files to generate proxies from everytime I do some editing
>> with
>> > Blender so now it's quite a tedious task to generate proxies ten files by
>> > ten files. Tha's why I was looking for alternative external solutions for
>> > low res/proxies. I'd be happy if one day I can import 200 files at a time
>> > and in one batch tell blender to generate proxies.
>> >
>> > I'd like to suggest if I may that blender proxies have similar file names
>> > to the high res file and that an option enables you to generate proxies
>> > with sound if one wishes.  Here is why: when you're editing a documentary
>> > or any project where more than one person is involved, the ability to
>> watch
>> > the low res proxies outside of blender file names identical to the high
>> res
>> > file is an advantage because it means that you can watch these low res
>> > files with any software on any device, email them if you want, they
>> become
>> > a precious collaborative tool. Other situation where proxies with correct
>> > files names and sound can be usefull: just image you want to watch all
>> the
>> > footage you shot in low res on a tablet while you're in public
>> > transportation. Blender proxies have no sound and the name of the files
>> is
>> > proxy_25 or proxy_50, etc...So you cannot use these low res files outside
>> > of blender. If you want to rate files on a tablet while you're in public
>> > transportation or on a computer that doesn't have blender installed on,
>> you
>> > can't do that with blender proxies. For these reasons,  if blender
>> proxies
>> > had similar files names to the high res file and if there was an option
>> to
>> > generate proxies with sound it would be really usefull. And if this too
>> > complicated, the ability to tell Blender to use proxy files generated
>> > outside of Blender without having to give the right path for each file
>> > would be fantastic: such folder has proxies, in such folder, low res
>> files
>> > have identical file names to the high res files, blender would
>> > automatically connect low and high res files.
>> >
>> > Best
>> >
>> >
>> >
>> > On Fri, Aug 21, 2015 at 6:07 PM, Bassam Kurdali <bassam at urchn.org>
>> wrote:
>> >
>> >> You can in fact generate them outside of blender, just give them the
>> >> right path, name etc. For instance:
>> >>
>> >> <evilhack>
>> >> I use this to proxy exrs with transparency into .tgas with transparency
>> >> using pillow, and then rename them to .jpgs... presto: transparent
>> >> proxy image sequences ....
>> >> </evilhack>
>> >>
>> >>
>> >>
>> >> On Fri, 2015-08-21 at 18:59 +0300, Antony Riakiotakis wrote:
>> >> > Hi, if blender crashes generating proxies, it's a bug and it should
>> >> > be fixed.
>> >> > Even thought this is done in a seperate thread than the main
>> >> > application, it still uses just one thread to do the job (admittedly
>> >> > it could handle many proxies at once)
>> >> > You can explicitly set proxies in blender also in many ways (custom
>> >> > file, custom directory per project etc). I don't see how generating
>> >> > them outside blender will help in any way really.
>> >> >
>> >> > On 21 August 2015 at 18:24, maximo remedios <maximoremedios at gmail.com
>> >> > > wrote:
>> >> > > Hello,
>> >> > >
>> >> > > Generating multiple proxies at once is possible now in Blender but
>> >> > > challenging, you cannot import 200 files in the VSE and ask Blender
>> >> > > to
>> >> > > generate proxies, if you do so it will crash. Many free apps can
>> >> > > generate
>> >> > > low res video files in a batch way. The best solution would be to
>> >> > > generate
>> >> > > proxy files outside of Blender in a batch way and back in Blender
>> >> > > link all
>> >> > > the high res files to the low res files. Telling blender, such
>> >> > > directory
>> >> > > has the proxies (generated outside of blender), use them (without
>> >> > > having to
>> >> > > rebuild proxies). As far as I know this isn't possible?
>> >> > >
>> >> > > Thank you
>> >> > > _______________________________________________
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>
>
>
> --
> Douglas E Knapp, MSAOM, LAc.
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