Skip to main content

ConnectionCondition 5 vs 6

4 replies [Last post]
vinaykagarwal
Offline
Joined: 2006-01-14
Points: 0

What is the real difference between these two connection conditions? The players don't seem to treat them differently.

Thanks in advance.

Reply viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Joe Rice

Technically connection condition 5 allows non-seamless audio, as it's
allowable for audio access units to be repeated or dropped at the
connection point. In practice, there never seems to be any audible
result from this. Connection condition 6 guarantees seamlessness in
all elementary streams. In my experience, CC6 is generally used for
progressive playlists, where it's required if you want to have
multiple subplayitems play in conjunction with a single playitem, as
is usually the case for progressive secondary video or audio.

Cheers,
Joe

On 10 Sep 2009, at 8:35 AM, bd-j-dev@mobileandembedded.org wrote:

> What is the real difference between these two connection conditions?
> The players don't seem to treat them differently.
>
> Thanks in advance.
> [Message sent by forum member 'vinaykagarwal' (VinayKAgarwal@hotmail.com
> )]
>
> http://forums.java.net/jive/thread.jspa?messageID=363527
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: bd-j-dev-unsubscribe@hdcookbook.dev.java.net
> For additional commands, e-mail: bd-j-dev-help@hdcookbook.dev.java.net
>

---------------------------------------------------------------------
To unsubscribe, e-mail: bd-j-dev-unsubscribe@hdcookbook.dev.java.net
For additional commands, e-mail: bd-j-dev-help@hdcookbook.dev.java.net

vinaykagarwal
Offline
Joined: 2006-01-14
Points: 0

Thanks Joe.

If a player causes a "glitch" in audio or video with ConnectionCondition 6 (like the splits generated by TsMuxer), is it not meeting the Blu-ray specs? I see such glitches in LG BD370.

Vinay

Joe Rice

If the content verifies as format compliant (with Sony, Panasonic, or
Mitsubishi verifier) it could well be a player issue. Note that if
you're playing from optical disc, there are physical layout rules that
need to be followed to ensure seamless playback. Essentially the clips
need to be close enough together the meet the minimum jump distance
requirements so that the laser pickup can start reading the new clip
data before the buffers empty of the last clip's data)

Cheers,
Joe

On 10 Sep 2009, at 12:10 PM, bd-j-dev@mobileandembedded.org wrote:

> Thanks Joe.
>
> If a player causes a "glitch" in audio or video with
> ConnectionCondition 6 (like the splits generated by TsMuxer), is it
> not meeting the Blu-ray specs? I see such glitches in LG BD370.
>
> Vinay
> [Message sent by forum member 'vinaykagarwal' (VinayKAgarwal@hotmail.com
> )]
>
> http://forums.java.net/jive/thread.jspa?messageID=363618
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: bd-j-dev-unsubscribe@hdcookbook.dev.java.net
> For additional commands, e-mail: bd-j-dev-help@hdcookbook.dev.java.net
>

---------------------------------------------------------------------
To unsubscribe, e-mail: bd-j-dev-unsubscribe@hdcookbook.dev.java.net
For additional commands, e-mail: bd-j-dev-help@hdcookbook.dev.java.net

vinaykagarwal
Offline
Joined: 2006-01-14
Points: 0

Joe,

Thanks for pointing out the two possible problems - the validity and the placement. I have tried the same m2ts'/clpi's/mpls as progressive playlist as well, so the placement shouldn't be issue. For validity, I verified the specifications manually (I don't have access to verification tools).

The BD image in question is a 3 min video which is muxed and split at 60 sec boundaries by tsMuxer from individual streams (mpeg2 and ac3, both meeting specs and generated by ffmpeg).

Any further suggestions? Thanks for your time.
Vinay

Message was edited by: vinaykagarwal