[FFmpeg-devel] [PATCH 1/5] movenc: use correct tag list for AVOutputFormat.codec_tag

[Hendrik Leppkes]

On Tue, Jul 4, 2017 at 5:09 PM, Derek Buitenhuis
<derek.buitenhuis at gmail.com> wrote:
> On 7/3/2017 3:00 AM, James Almer wrote:
>> Doesn't DTS have a bunch of unique tags? The ones listed in
>> ff_codec_movaudio_tags and http://www.mp4ra.org/codecs.html
>
> It looks like those only cover DTS extensions, which we all
> mark s AV_CODEC_ID_DTS. Is the DTS base layer 'mp4a'? I don't
> have a source on what is correct to do here, or how to fit it
> in (since this seems to imply DTS should have a 1-to-N mapping).
>
>

"dtsc" appears to be the base DTS codec, according to
http://www.mp4ra.org/codecs.html
"mp4a" only applies to codecs defined in the official MP4 specification.

- Hendrik