[FFmpeg-devel] [PATCH] Clarifying the use of the scale filter interlace option

Mark Himsley mark at mdsh.com
Mon Apr 2 20:41:58 CEST 2012


On 02/04/2012 08:56, Tim Nicholson wrote:
> On 31/03/12 12:54, Mark Himsley wrote:
>> On 29/03/2012 20:33, Michael Niedermayer wrote:
>>> On Thu, Mar 29, 2012 at 08:49:38AM +0100, Tim Nicholson wrote:
>>
>>>>
>>>> Also unlike other cases -1 (auto) is not the default.
>>>
>>> this could be changed if it works better overall
>>
>> I made this point on 25/07/2011, with a patch. It was rejected because
>> the progressive videos used in fate tests were always flagged as
>> progressive in DV codecs so PSNR tests failed horribly.
>
> Did you mean "flagged as interlaced". Progressive marked as progressive
> is surely correct.

No. I meant what I said :-)
DV is always flagged as interlaced by dvvideo_decode_frame()

     s->picture.interlaced_frame = 1;
     s->picture.top_field_first  = 0;

-- 
Mark


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