[FFmpeg-devel] headers for gapless playback

Paul B Mahol onemda at gmail.com
Wed Nov 20 12:54:26 EET 2019


On 11/19/19, John Kaplan <jkaplan2 at pandora.com> wrote:
> Hi Guys,
>
> We just did some research on gapless playback across multiple client
> devices, and could not find support for adding gapless metadata headers in
> ffmpeg. Our interest is specifically in AAC/MP4, and we ended up shifting to
> the fdk-aac package, which exposes options for adding moov/edts/elst headers
> (which are the ones we used) as well as iTunSMPB.
>
> So, I wanted to open a discussion with the team on ffmpeg support for
> gapless metadata.
> I’m not sure if you guys have discussed before, so here are a few opening
> questions to get me up to speed…
>
>
>   1.  Does ffmpeg support addition of gapless metadata in any form
> currently, and we missed the doc as to how to specify it?
>   2.  If not, have you discussed previously? If so, what were the results?
> (I.e. rejected as evil, put on roadmap but in future, currently in
> development, etc.)
>   3.  If support is still in the future, would you be open to me
> contributing a patch that implements it?

Patches are always welcome.

>
> Any comments would be welcome.
> Thanks,
> John
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