[FFmpeg-devel] [PATCH v4 3/3] avformat/mxfenc: prefer to use the configured metadta

[lance.lmwang at gmail.com]

On Thu, Jan 28, 2021 at 10:26:03AM +0100, emcodem at ffastrans.com wrote:
> Am 2021-01-28 02:21, schrieb lance.lmwang at gmail.com:
> > I haven't found the s337m freely, so I'm not sure about the Platforma
> > metadata.
> > I think we haven't support the field yet, I guess it's 0x3C08 tag, but I
> > haven't
> > the document in hand so it's not OK to add it by me.
> > 
> Yeah the SMPTE are unfortunately not free :-(
> 
> Maybe this helps: a citate from 377-1-2009c which i believe is the only
> versoin of SMPTE 377 we should refer to unless we change the  "Minor
> Version" property of the partition pack to another value than "3" (which it
> currently is):

thanks, I got a copy already.

> 
> > Item Name: Platform
> > Type: UTF-16 string
> > Len: var
> > Local Tag: 3C.08
> > Item UL:  06.0E.2B.3401.01.01.0205.20.07.0106.01.00.00
> > Req?: Opt
> > Meaning: Human readable name of the toolkit and operating system used.
> > Best practice is to use the form “SDK name (OS name)” [RP 210 Specifies
> > the platform on which the application was run]

I haven't figured out how to get the string of "OS name", maybe I had to
change configure file to add OS_NAME=$target_os and export the string.

Below is two example for Apple and Linux:
    application_platform: Lavf58.65.101(Darwin)
    application_platform: Lavf58.65.101(Linux)

If it's OK, I'll update the patch.

> 

-- 
Thanks,
Limin Wang