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Discussion Starter · #1 ·
Should I record at 60i or 60p? I have a Sony camcorder (cx260) and a sony tv (KDF-E55A20). The tv can only do up to 1080i. I'm using a wdtv live plus to play back, which says it only supports level 4.1 ([email protected]). However, both 60i and 60p do play. I'm wondering what kind of conversion is going on. If I record in 60p is my tv (or wdtv) simply dropping the extra frame? I'm thinking I should record in 60p to future prof my videos. However, I am curious if my current setup benefits from it now and why it can play my 60p at all.



James
 

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Record 1080p60. Yep, for futureproofing. This is the best format unless you want 24p.


For playback re-encode to whichever format works best for your viewing device. You edit your videos anyway, don't you?


My Asus O!Play tries playing 1080p60, bit it is too much load for it, it visibly skips frames. My BD player can play 1080p60. My age-old Panasonic plasma accepts 1080p60 via HDMI.


I would re-encode into 720p60 if your player or TV has issues with 1080p60. It will look almost as good.
 

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Ok great, Thank You! i'll start recording at 1080p from now on. Just so I understand what's going on can you (or anyone else) please explain this issue?

On my raspbery pi (raspbmc - XBMC) my sony camcorder (cx260) video at 60i looks very blurry when panning? I'm playing it back on my sony tv (e55a20) with xbmc's resolution at 1080i. Alternatively, when using my wdtv streamer it looks very smooth. Furthermore, when xbmc is set to 720p it looks really bad with lots of interlaced lines. The wdtv seems to always keep my tv at 1080i, i don't know how to change that easily to test how it looks at 720p.
 

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combing - no deinterlacing occurred (actually, since you watch it on a progressive-scan TV, deinterlacing did take place, only incorrect one, bunching two fields into one progressive frame, this is sometimes called "weave" mode)

blurring - same as above, and downscaled, so that individual field lines smashed vertically and combing now looks like ghosting.


Your TV is progressive-scan, so some deinterlacing MUST happen. It might accept 1080i only as input (which I doubt, although I haven't checked your model, older models did not accept 1080p), bit it will deinterlace it anyway for display.
 

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Discussion Starter · #5 ·
I think my TV does switch input resolutions e.g. 720p and 1080i. I have seen in the TV's overlay display menu. Is there a way to get the raspbery pi (XBMC) to play the 1080i file so that it looks like how the wdtv plays the same file? Do you think XBMC might have a setting to handle the combing or deinterlacing settings better? Or is my tv doing this? Why would it work well with one video streamer device and not the other... or is there just a difference in quality of the graphics processors? I'm going to go read about Combing and interlacing more... still learning this stuff
 
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