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Posts Tagged ‘Media Express’

Blackmagic Media Express Failure

July 21, 2011 4 comments

About one month ago I posted that we are now using a Blackmagic Decklink SDI card to capture via SDI in some workflows at The Station. Unfortunately it became clear quite quickly that the Media Express 2.3.1 software we were using, for capturing and controlling the decks, had some shortcomings.

Apparently the Linux version of this software does not support capture of VITC information where present. This made creating valid IMX50 (D10) files harder than it needed to be. We would capture the SD content from tape into 10-bit uncompressed at 720×576, then when transcoding using FFmbc, we needed to pad the top of the file with 36 lines of blanking, to create a valid IMX50 at 720×608. This process caused a few problems with the resulting files’ aspect ratio information.

After speaking with the support staff ot Blackmagic Design, it became clear the the Windows and Mac versions of Media Express 2.3.1 do support capture of VITC, just not the Linux version. The relevant API calls are exposed in the freely available SDK, but we would need to build our own application to take advantage of this.

My next hope was that the new version of Media Express would include this additional functionality on Linux. On April 11th 2011, Blackmagic published a press release stating that Media Express 3.0 would be available for Windows, Mac and Linux. The software would be available for free download from their website in June.

Today I went searching for the software but could not find it. Looking on the Blackmagic software download page, the latest Desktop Video download for Linux is 8.0.1 from May 13th, 2011. Clearly this would not include the new 3.0 version, as this file is what I downloaded a month ago to obtain version 2.3.1.

I phoned Blackmagic support again to enquire about where to find Media Express 3.0. They informed me that a beta version of this software was available for Mac platforms, but that was all. They were also unable to speculate regarding a formal release date for the software, nor whether the Linux version would be available at the same time as the Windows and Mac version. All in all, not very helpful.

June finished 21 days ago. I want my Media Express 3.0 software for Linux!

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