EVS XEDIO Ingest Organizer Version 4.2 - June 2012 User Manual - Manual (Page 22)

Issue 4.2.B Xedio Suite Version 4.2 – User Manual - Ingest Organizer
EVS Broadcast Equipment – June 2012
16
3.5 RECORDING TC VERSUS MEDIA TC
The Xedio Ingest server usually pilots two encoders: one in hi-res (EncHi) and one
in lo-res (EncLow).
Each encoder creates one Media file: hi-res media file and lo-res media file.
Xedio Ingest sends the recording command to both encoders at the same time.
However, according to several parameters, such as the codec, the recording does
not start at the same time on both encoders. So, the TC IN and TC OUT of the two
Media files will differ. This is absolutely normal and there can be up to 10 seconds
between both TC IN or between both TC OUT in some cases.
Once the recording is finished, the Xedio Ingest analyses the TC IN and the TC
OUT of each Media file and creates a single Media file corresponding to the
material common to both lo-res and hi-res files.
• The Media TC IN will be the highest value between both TC IN.
• The Media TC OUT will be the lowest value between both TC OUT.
This difference can be viewed in a player when TC Intra is displayed.
The recording existed from when the first encoder started until the last encoder
stopped. So, in the scheduler:
• The Recording TC IN value will be the lowest between both TC IN.
• The Media TC OUT value will be the highest between both TC OUT.
In summary, the duration of one recording is always greater than the duration of
the corresponding Media and its Media files. The duration of one Media is always
smaller that the duration of its Media files and the corresponding recording.
Additionally, a clip can be created from a media. It will therefore always have its
TC IN and TC OUT within the Media TC IN and TC OUT limits.
This is explained in the following diagram.