[Libav-user] FFMPEG - Sepia issue

[Paul B Mahol]

On 6/22/18, maryna.pidhorna at done-it.net <maryna.pidhorna at done-it.net> wrote:
> Hello!
>
> Could you, please, help us with the issue? We use FFMPEG for adding some
> filters to the video on Android devices. But for some reasons the video
> doesn't play via mobile video player (iOS and Android), in the case of
> adding Sepia filter, and the same video is playing fine if we open it
> via media player on PC. We used this string for converting:
> -ss, 00:00:00.00, -i,
> /storage/emulated/0/me.outdoo/VID_1528889925855.mp4, -c:v, libx264,
> -crf, 17, -c:a, aac, -preset, fast, -filter_complex,
> [0:v]scale=trunc(oh*a/2)*2:480[scaled];[scaled]colorchannelmixer=.393:.769:.189:0:.349:.686:.168:0:.272:.534:.131[colorchannelmixed];[colorchannelmixed]eq=1.0:0:1.3:2.4:1.0:1.0:1.0:1.0[color_effect],
>
> -map, [color_effect], -t, 00:00:10.00,
> /storage/emulated/0/me.outdoo/VID_1529660229806_edited.mp4]
>
> We found one factor. We do not use [colorchannelmixed] parameter in
> other filters, but such issue exists with Sepia filter only.
>
> We are looking forward to your reply as we are on the publishing step of
> the app right now and don't want to receive negative feedback from users.
>
> Thanks in advance.
>
> Regards,
> Android Development Team
>
> --
>
> Maryna P.
>
> Co-Founder, COO at Done IT
>
> maryna.pidhorna at done-it.net <mailto:maryna.pidhorna at done-it.net>
>
> m: +380 500 600 528
>
> skype: live:it.done2017
>
> Done IT
>
> Mobile App Development
>
> www.done-it.net <http://done-it.net/>
>
>

Check output pixel format stored in video file, it must be compatible
with your setup.