Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.


Go Back   Doom9's Forum > Video Encoding > MPEG-4 AVC / H.264

Thread Tools Search this Thread Display Modes
Old 20th September 2007, 13:04   #1  |  Link
Registered User
Join Date: Aug 2005
Posts: 29
Question on POC

Hello all,

IN AVC there are 3 types of POC. But to me, they are just used for the same purpose. So please who can explain for me why is this? Or point me some JVT proposals about how this happens. Thanks.
jasonme is offline   Reply With Quote
Old 20th September 2007, 14:03   #2  |  Link
Join Date: Jan 2002
Posts: 21,923
Type 0: send POC explicitly in each slice header. Allows maximum flexibility.

Type 1: set up expected increments in sequence parameter set; only send a delta if there is any change to expected order. Suitable for situation where there is a repeating “cycle” of pictures, c.f. MPEG-2 GOP.

Type 2: display order same as decoding order. POC is derived from frame_num; minimal overhead.

See here for more details:

Guest is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 09:50.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.