[NUT-devel] [nut]: r632 - docs/nut.txt

[Måns Rullgård]

Rich Felker <dalias at aerifal.cx> writes:

> On Wed, Feb 13, 2008 at 08:06:43PM +0000, Måns Rullgård wrote:
>> Rich Felker <dalias at aerifal.cx> writes:
>> 
>> > On Wed, Feb 13, 2008 at 07:54:58PM +0100, michael wrote:
>> >> Author: michael
>> >> Date: Wed Feb 13 19:54:57 2008
>> >> New Revision: 632
>> >> 
>> >> Log:
>> >> typo
>> >> 
>> >> 
>> >> Modified:
>> >>    docs/nut.txt
>> >> 
>> >> Modified: docs/nut.txt
>> >> ==============================================================================
>> >> --- docs/nut.txt	(original)
>> >> +++ docs/nut.txt	Wed Feb 13 19:54:57 2008
>> >> @@ -1073,7 +1073,7 @@ single codec frame. A muxer MUST NOT sto
>> >>  codec frame per NUT frame.
>> >>  For RAW audio up to 4096 samples shall be considered 1 codec frame, the actual
>> >>  number of samples MAY vary between NUT frames.
>> >> -For RAW video a single frames shall be 1 codec frame.
>> >> +For RAW video a single frame shall be 1 codec frame.
>> >
>> > What is the 'codec'? I like '1 picture' better.
>> 
>> How do you count field pictures?
>
> It's a good question. Is there a way to indicate that raw video is
> interleaved fields and not frames? Michael?

There are (at least) three cases to consider:

1. Progressive frame pictures.
2. Interlaced frame pictures containing interleaved fields.
3. Field pictures containing only odd or even lines.

For case 2, the field order must somehow be signalled.

I've never heard of anything using more than two fields per frame, and
I hope I never will.

-- 
Måns Rullgård
mans at mansr.com