Opened 8 years ago

Closed 8 years ago

#938 closed defect (fixed)

8.4.4.2.2 : Wrong value set for chroma sample substitution when all p[] pixels are marked as not available

Reported by: Jing-Jing Chung Owned by: bbross
Priority: minor Milestone: D9
Component: Text Version: D9 (K1003) v13
Keywords: Cc: bbross, wjhan, jct-vc@…

Description

In chapter 8.4.4.2.2, the substitution is described as following :

"The values of the samples p[ x ][ y ] with x = −1, y = −1..nT*2−1 and x = 0..nT*2−1, y = −1 are modified as follows:
– If all samples p[ x ][ y ] with x = −1, y = −1..nT*2−1 and x = 0..nT*2−1, y = −1 are marked as "not available for intra prediction," the value ( 1 << ( BitDepthY − 1 ) ) is substituted for the values of all samples p[ x ][ y ]."

This is applied for luma and chroma pixels.
For chroma pixels, I think the value to be used should be : ( 1 << ( BitDepthC − 1 ) )

Change History (3)

comment:1 Changed 8 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

comment:2 Changed 8 years ago by bbross

Fixed in JCTVC-L1003_v1.

comment:3 Changed 8 years ago by bbross

  • Resolution set to fixed
  • Status changed from new to closed
Note: See TracTickets for help on using tickets.

This list contains all users that will be notified about changes made to this ticket.

These roles will be notified: Reporter, Owner, Subscriber, Participant

  • Benjamin Bross(Owner, Subscriber, Participant)
  • jct-vc@…(Subscriber)
  • karl.sharman@…(Always)
  • Karsten Suehring(Always)
  • Woo-Jin Han(Subscriber)