- September 14, 2020 at 2:44 am
I’m attempting to export a 2 minute deliverable for broadcast. Edit was made at 29.97 DF (per the spec sheet). The timecode needs to be turned in at 00;02;00;00 and at 59.94 DF via XDCAM HD 720p60p MXF wrapper. And not a frame over.
Every export comes out either over or under the 2 minute mark. I realize that the math associated with DF is impacting this, but are there any tips out there to clamp this deliverable down to the time asked?
It’s worth noting that this 2 minute deliverable is a cutdown of an existing video that is broken into two parts, with timecodes of 00;02;22;00 and 00;02;38;00 respectively. I was able to export those no problem, but am curious to know
- September 14, 2020 at 9:13 pm
Yes, this is a DF issue. However it’s not wrong. The way drop frame works is it drops counting of 2 frames every minute except every 6 min. So with a 2 min video the length will always be 2:00:02, never 2:00:00.
The count will be 1:59:58, 1:59:59, 2:00:02. That’s exactly two minutes and this has been true ever since the 50s when drop frame was invented. Has nothing to do with source material, only the final output to XDCAM 29.97. If you use non-dropframe it would read 2:00:00 exactly.
If your sequence is set to dropframe you can scroll frame by frame and you’ll see it happening like that
- September 23, 2020 at 4:38 pm
Thanks for the reply. The spec sheet requirements were in error. *Whew*
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