[FFmpeg-user] Retain audio track titles that are displayed in VLC

[Janis Hamme]

Hi Moritz,

I don't think the problem is caused by missing track disposition.
I tried smplayer and is indeed showing the track disposition on the
output file.
(ffmpeg -i shows it too)

VLC seems to read some other flags from the TS container and maps these
to a track description:
https://github.com/videolan/vlc/search?q=impaired&unscoped_q=impaired

Probably ffmpeg uses another format for the disposition that VLC does
not understand.
> Have you tried a more recent ffmpeg (not that I expect it to
> have relevant changes in this matter)?
It's only behind by a minor version (4.1.3 vs 4.1.4). Debian Buster is
still fresh ;-)

Regards
Janis

Am 25.07.19 um 10:25 schrieb Moritz Barsnick:
> On Wed, Jul 24, 2019 at 23:03:12 +0200, Janis Hamme wrote:
>> I've uploaded a short sample file [1] and a screenshot of the track
>> title display in VLC [2]. After running
>>
>> ffmpeg -i test.ts -map 0 -c copy test-ffmpeg.ts
>>
>> the title that was displayed for audio track 2 (visual impaired) is
>> gone. VLC only shows the language for each track in the output file.
>> I've attached the output of ffmpeg below.
> When I do this - with ffmpeg from git - the dispositions are retained,
> and smplayer manages to display them from the resulting file, similarly
> to what you expect from VLC. (Too lazy to install VLC right now.)
>
> Peculiar. Have you tried a more recent ffmpeg (not that I expect it to
> have relevant changes in this matter)?
>
> Moritz
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