PAFF and mbaff-www.chinattl.com/display_aticle.asp? Id = 1518

PAFF and mbaff: When an image is encoded for the interlace scan, each frame includes two fields.
There is a large scanning interval between fields. In this way, for motion images, the value of the adjacent lines in the frame is null.
The correlation between two fields is reduced compared to the row-by-row scan, so the encoding of the two fields is more detailed.
Saves code streams. For frames, there are three optional encoding methods: merge the two fields into one frame for encoding.
(Frame mode) or encode two fields separately (field mode) or combine the two fields as one frame, but not
In the same way, the two vertical adjacent macro blocks in the frame are merged into macro block pairs for encoding. The first two are called PAFF encoding.
The field method is valid when encoding the moving area.
The row has a large correlation, so the frame method is more effective. When an image has both a motion region and a non-
When the motion area is in MB level, the field mode is adopted for the motion area and the non-motion area is adopted.
The frame method is more effective. This method is called mbaff, and the Prediction unit is macro block pair.

 

 

 

You shoshould be able to find such bitstreams in
Http://ftp3.itu.int/av-arch/jvt-site/draft_conformance.

Best regards,

Gary Sullivan

+> ----- original message -----
+> from: mp4-tech-bounces lists.mpegif.org
+> [mailto: mp4-tech-bounces lists.mpegif.org] on behalf of
+> kaustubh. patankar vsnl.net
+> sent: Friday, August 19,200 5 am
+> to: Mp4-tech lists.mpegif.org
+> subject: [Mp4-tech] [H. 264] mbaff and PAFF
+> dear Members
+> where can I find the standard bit streams to test the
+> decoder for mbaff and PAFF
+> features.
+> or else any other cial encoder supports this feature while encoding
+> With regards
+>
+> kaustubh
+>