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From: Marton Balint <cus@passwd.hu>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] avformat/mxfdec: support MCA audio information
Date: Sun, 2 Jan 2022 02:11:01 +0100 (CET)
Message-ID: <7f4b47cf-fc4f-cc24-27a9-e32ff21e78bf@passwd.hu> (raw)
In-Reply-To: <CAF_7JxCk5Zw2rJvStcXq+LjLQJ+XJ89JnFQVSWSCE3+2aSWyOg@mail.gmail.com>



On Sat, 1 Jan 2022, Pierre-Anthony Lemieux wrote:

> Minor suggestion below.
>
> In addition, will sample file(s) be added to FATE? Below are two examples:
>
> http://ffmpeg-imf-samples-public.s3.us-west-1.amazonaws.com/callout_51_l_r_c_lfe_ls_rs.mxf
> http://ffmpeg-imf-samples-public.s3.us-west-1.amazonaws.com/callout_51_l_c_r_ls_rs_lfe.mxf

Good idea, can someone with access please upload these to the fate mxf 
folder?

[...]

> I suggest adding the following audio channels, which are specified in
> SMPTE ST 2067-8 [1] and have a direct mapping to ffmpeg audio
> channels:
>
> urn:smpte:ul:060e2b34.0401010d.03020120.03000000 (Left Total) ->
> AV_CH_STEREO_LEFT
> urn:smpte:ul:060e2b34.0401010d.03020120.04000000 (RightTotal) ->
> AV_CH_STEREO_RIGHT
>
> [1] https://registry.smpte-ra.org/view/published/labels_view.html

Unfortunately this is a Dolby encoded stereo mix, not an ordinary LeftOnly 
/ RightOnly mix. So I am not how this should be signalled.

Regards,
Marton
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  reply	other threads:[~2022-01-02  1:11 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-01 19:26 Marton Balint
2022-01-01 23:13 ` Pierre-Anthony Lemieux
2022-01-02  1:11   ` Marton Balint [this message]
2022-01-02  2:16     ` Pierre-Anthony Lemieux
2022-01-02 10:26       ` Marton Balint
2022-01-08 18:48         ` Marton Balint
2022-01-02 17:35     ` Michael Niedermayer
2022-01-02  1:35   ` Andreas Rheinhardt
2022-01-02  1:54     ` Pierre-Anthony Lemieux
2022-01-02 10:33       ` Marton Balint
2022-01-03  7:12       ` Andreas Rheinhardt
2022-01-04  4:38         ` Pierre-Anthony Lemieux

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