Hi,
Am 14.11.2014 05:52, schrieb Marco F:
I am having problems seeing a clear line in this
discussion. Could
someone help me clarify what the archival file format is going to be
used for exactly?
the discussion is a bout a free, high quality format we could allow to
be uploaded to Commons, in order to allow sharing of raw material.
The video editing server is trying to solve the same problem - sharing
raw footage - in a different way. It is not dependant on a free file
format and is not subject of this discussion - I just brought it up as
an alternate way dealing with this problem.
* Internal format for the "video server"?
(e.g. export rendered
sequences to the archival format and create lossy/SD transcodes for
consumption (w.commons) and keep the archival format for
future/subsequent edits)
the video editing server will accept and store the raw material in its
original file format, as provided by the camera. It can deal with almost
any codec - everything FFMpeg can read.
* Uploading videos to the "video server"?
(I.e. Prior to upload to the
video editing server, every video has to be transcoded into the archival
format... Needs a lot of bandwith, imo...)
the upload is something we cannot avoid - any kind of sharing in
whatever format, on Commons or elsewhere, will involve at least an
initial upload.
The video editing server does not use an intermediate format. It stores
the original files as they come in. It transcodes only to create proxy
clips which are much smaller and we already have determined the format
for those: WebM.
* Storing source videos on the video editing server?
(I.e. After upload
to the server, every video is being transcoded into the archival format
and deleted after successful transcoding)
no, nothing will be deleted. We need the orginal files to render the videos.
Once a producer uploads the project file created from the WebM proxy
clips, the server will replace the proxy clips with the original files
in the project file and then render it.
* Uploading lossless video to commons? (Patent
situation needs to be
considered...)
The rendered files will be (for now) high quality WebM. Those will then
be moved to Commons.
If another producer wants to remix a video, all the source material can
be found on the video editing server and the proxy clips thereof can be
downloaded, along with the project files, and remixed.
Once the remix is ready the producer uploads the new project file and
the server will go through the render process again.
If Commons decides to accept new video formats we can consider the video
editing server to render the videos in a new format. For now WebM is the
best option, we also have to consider that the videos on Commons should
also work on the web.
/Manuel
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