Does software forcefully convert 1080p to 1080i ?

[lifepo4]

Sorry, a new hand here.

When I import AVCHD 1080p using VoltaicHD or iMovies 08, it appears that both softwares dictate 1080i video output. When I play the QuickTime videos using Western Digital HD media player, the videos are obviously interlaced. Why?

On the Mac platform, how do I know if video is interlaced or progressive?

Thanks!!

 

[Barry_Green]

HMC150 1080/60i footage is, of course, interlaced. 1080/30p footage is progressive, but is stored in a 1080/60i interlaced data stream. 1080/24p is recorded as progressive, there's nothing interlaced about it at all.

Obviously it's possible that either Voltaic or imovie's AIC could be interlacing the footage in a conversion to 60i; hopefully some Mac users who use those programs will weigh in with some facts. I'm just pointing out which formats are interlaced and which are progressive at the camera level.

 

[lifepo4]

Can I tell the difference?

Can I tell the difference?

HMC150 1080/60i footage is, of course, interlaced. 1080/30p footage is progressive, but is stored in a 1080/60i interlaced data stream. 1080/24p is recorded as progressive, there's nothing interlaced about it at all.

Obviously it's possible that either Voltaic or imovie's AIC could be interlacing the footage in a conversion to 60i; hopefully some Mac users who use those programs will weigh in with some facts. I'm just pointing out which formats are interlaced and which are progressive at the camera level.

I am using iM08, trying to create quicktime files in progressive mode (my source is 1080p). After creating the quicktime file, how do I know if my *.mov is 1080i or 1080p? Thanks!