[FFmpeg-user] How to set 3 specific metadata flags (ITU601/displayoffset) in FFmpegs IMX50 MXF-OP1a encoding?

tim nicholson nichot20 at yahoo.com
Mon Mar 30 08:18:07 CEST 2015


On 23/03/15 09:45, Christoph Gerstbauer wrote:
>>
>> If it works for you I will submit a tidied up version, with revised fate
>> checksums, but that will have to wait awhile as I'm away next week...
> 
> Hello Tim!
> thank you, it works for PAL and NTSC (720x512/720x480) but there is a
> just little bug for NTSC when encoding to 720x486 in "stored dimension"!

My patch only deals with the addition of the display y offset metadata,
it should not touch exisiting metadata, are you saying that the figures
for 'Stored dimensions' are different with and without my patch?



> I have made list of all encoding examples:
> 
> 
> [..]
> FOR NTSC IMX50:
> 
> [..]
> 
> When I set: -s 720x486
> 
> Signal standard      : 0 (None)
> Frame layout         : 1 (Separate Fields)
> Stored dimensions    : 720x496        <--- NOT correct, should be 720x486
> Display dimensions   : 720x486        <--- correct
> Display x offset     : 0
> Display y offset     : 0     <--- correct
>[..]
> Best Regards
> Christoph
> [..]
-- 
Tim.
Key Fingerprint 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83


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