Wow so your code can check all that audio level stuff. That's very impressive. My big iron brain always thinks of LM-100 units etc... for that stuff. Seems like a lot of math and stuff that I don't have the chops for. The more I learn the less I know.
---In avid-L2@yahoogroups.com, <bouke@...> wrote :
First of all, commercials over here are MXF Op1A, XDcam style.
It checks loudness / True Peak / Short term loudness / track amount / amount of channels per track / audio bitrate.
If fixable, it will try to compensate modifying sound only
It checks TC / duration, and will rewrap (no transcode) when off. (within limits, it will not trim off more than X frames when too long.)
It checks codec / bitrate / resolution.
If off, it will try to transcode to compliant file.
And (in the normal release, not public yet), it will check or generate sidecar XML, filename, etc, and eats close to anything on input, output a compliant file.
What it does NOT do (yet) is flicker (Harding test), video levels, field dominance / errors etc.
But over here commercial are hardly ever get rejected for that.
The old ('consumer') version is here (does not do all yet, but a lot. Input a QT, get an compliant file out of it.)
On 09 Nov 2017, at 18:20, bigfish@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:What types of things fall under compliance? Is your software looking at metadata that describes the type of or format of content? Does the software analyze video and audio levels as well?Are there toolbox like OS level software that your software accesses as a front end or do you write code that measures levels etc... This is an area I know little about and find it interesting.
---In avid-L2@yahoogroups.com, <bouke@...> wrote :Well, not really, but I got a job to automate checking of compliance of commercials, so I got a nice test set of stuff that is intended to play out on a variety of big broadcasters (Including BBC, FOX, National Geographic and so on.)And I'm amazed what kind of trash people think they can get to air…Good thing, they wanted me also to fix 'small' problems (Audio a bit too loud / soft, TC not correct, progressive not flagged as interlace etc.), so we're not the typical bitching QC department.But if I do reject a commercial, it's for a very good reason, and trust me, I now understand why some QC monkeys are sour./rant
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Posted by: bigfish@pacbell.net
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