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391 posts

Ultimate Geek
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Topic # 103516 8-Jun-2012 17:43 Send private message

Hi,

(Please move this if a more appropriate Forum exists)

I've established a DLNA LAN connection between a Panasonic DMR-XW 380 and my PC, using Twonky.

Copying to the PC results in a files ending _BDY.  These play in VLC but rows of horizontal lines show when anything is moving. I haven't been able to convert them to any other format that might play better.
VLC shows the codec details as

Stream 0
Type: Video
Original ID: 450
Codec: H264 - MPEG-4 AVC (part 10) (h264)
Resolution: 1920x1080
Frame rate: 50
Decoded format: Planar 4:2:0 YUV

Stream 1
Type: Audio
Original ID: 400
Codec: MPEG AAC Audio (mp4a)
Language: English
Channels: Stereo
Sample rate: 48000 Hz
AAC extension: SBR

Stream 2
Type: Audio
Original ID: 410
Codec: A52 Audio (aka AC3) (a52 )
Language: English

Has anyone been there-done that and have any ideas or comments ? I have tried converting with tmpGenc 4, but they lose many seconds of sync, and generally play sluggishly, or freeze.

Thanks, Kirk




Cheers - Kirk

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1568 posts

Uber Geek
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  Reply # 637983 8-Jun-2012 18:45 Send private message

The video you are watching is in 1080i format.
The i in 1080i signifies that the video is interlaced. 
See wikipedia for Interlaced info - http://en.wikipedia.org/wiki/Interlaced_video

This is what is causing the horizontal lines during motion.

To stop this from happening, try playing around with the De-interlacing settings in VLC. Under the Video menu.
I think "Blend" is the most commonly used setting/filter.

Hope this helps.
:)



391 posts

Ultimate Geek
+1 received by user: 1


  Reply # 638103 9-Jun-2012 01:27 Send private message

Fabulous!  Many thanks for that...  what an improvement !  I had to also turn Deinterlace ON, and I think Discard is slightly better than Blend.  Now to find some way to edit and  save as m2ts without degradation.

May be a bridge too far, but will be fun looking!   Thanks again :)




Cheers - Kirk

624 posts

Ultimate Geek
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  Reply # 638114 9-Jun-2012 07:17 Send private message

TVNZ (and later TV3) switched to 1080i from 720p (progressive) just becuase 1080 sounds higher than 720.
People wanted (Full HD) so TVNZ gave them 1080 lines, but interlaced.  

The problem is that 1080 lines interlaced looks worse than 720 lines progressive. And there is not enough space on Freeview|HD to broadcast 1080p without heavy compression. You will find discussions on this forum when TVNZ made the switch, and everyone moaning.





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  Reply # 638158 9-Jun-2012 10:44 Send private message

TV3 had always broadcast in 1080i, it was just TV1 and TV2 that were 720p originally.


624 posts

Ultimate Geek
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  Reply # 638159 9-Jun-2012 10:45 Send private message

Whoops, didn't have Freeview|HD then.






391 posts

Ultimate Geek
+1 received by user: 1


  Reply # 638226 9-Jun-2012 13:27 Send private message

naggyman: TVNZ (and later TV3) switched to 1080i from 720p (progressive) just becuase 1080 sounds higher than 720.
People wanted (Full HD) so TVNZ gave them 1080 lines, but interlaced.  

The problem is that 1080 lines interlaced looks worse than 720 lines progressive.


Didn't know that, typical I suppose. But TV and Freeview will become more and more insignificant as we find alternatives. So the only way to see full Hi Def is from a Blu Ray disk?  Anything on, or coming via satellite?




Cheers - Kirk

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  Reply # 638237 9-Jun-2012 14:07 Send private message

Full HD isn't broadcast anywhere in the world routinely, simply because the bandwidth required is too great.


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