- [Instructor] Broadly speaking,
if you're working professionally producing media
or even if you're preparing home videos
for a distribution system like YouTube,
you're going to be producing content
for somebody else's needs.
A good delivery specification will tell you
the ideal frame rate, field order,
or to use progressive full frames, the frame size,
pixel aspect ratio, bit depth, color mode,
number of and allocation of audio channels,
and we'll cover more on that later, the data rate,
which is usually described in megabits per second,
and that means millions of bits per second, and the codec.
All of this should be specified
by the person you're delivering the media too.
Very often these specifications will be set
by a media management system your client is using
or by the distribution method.
It's useful to ask for this information
during pre-production,
because then you can choose camera settings
that minimize conversion and make it easier
to deliver to these standards later on.
Often, many of these settings can be changed
for a different delivery standard
with little or no noticeable quality loss,
perhaps with the exception of frame rate.
The number of frames per second
you'll be delivering is quite crucial,
because without expensive standards conversion equipment,
it can be difficult to produce high quality video
at a different frame rate to your original media.
It's also true that you're unlikely
to produce more resolution than you originally recorded
without it being obvious you've scaled up the image.
For this reason, it's usually better to capture
the same resolution as your delivery requirement or higher.