For example, right now using addDerived the new added track doesn't have
a video child element, it only has the metadata I can modify with the
MediaPackageElement methods, along with an ID and a file reference.
On 11-03-09 05:55 AM, Josh Holtzman wrote:
What kind of metadata in particular? You can set checksum, mimetype,
size, etc all with the MediaPackageElement API.
Josh
On Tue, Mar 8, 2011 at 10:24 PM, Robert Robere <robere.it
<http://robere.it>@gmail.com <http://gmail.com>> wrote:
I have a quick question about metadata for derived tracks.
The addDerived method doesn't add any properties to the
MediaPackage describing the derived track. How exactly do I add
this information to the new tracks? Or am I supposed to not worry
about it?
Thanks,
Robert
On 11-03-02 02:13 PM, Robert Robere wrote:
Excellent. I had already found workspace.put(), but I wasn't sure
about the Tracks.
Thanks very much!
On Wed, Mar 2, 2011 at 2:40 AM, Josh Holtzman
<[email protected] <mailto:[email protected]>> wrote:
The idea is that you put the file in the workspace via:
Workspace.put(String mediaPackageID, String
mediaPackageElementID, String fileName, InputStream in)
which returns a URI to the file. You then add a track to the
mediapackage with that URI. Using addDerived helps others
understand that the new track was derived from the original:
Track splitTrack = (Track)
MediaPackageElementBuilder.elementFromURI(uri, Type.Track,
MediaPackageElements.PRESENTER_SOURCE);
mediaPackage.addDerived(originalSourceTrack, splitTrack);
Then return the mediapackage as part of the
WorkflowOperationResult.
Josh
On Wed, Mar 2, 2011 at 12:59 AM, Robert Robere <robere.it
<http://robere.it>@gmail.com <http://gmail.com>> wrote:
Hello All,
I'm working on an operation handler to take the video
streams from NCAST cards and split them into two files.
The idea was to write this as an operation handler and
perform the splitting during processing. Currently, I
have a reference to the workspace injected so I can run a
gstreamer pipeline to split the file locally, but what is
the best way to insert the resultant pair of videos back
into the workspace? Do I add a new Track to the
MediaPackage, or do I use the addDerived method to add a
modified Track? (I'm sorry but I'm a little lost).
Robert Robere
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