[FFmpeg-user] amix filter hanging

[Paul B Mahol]

On 8/25/17, Jonathan Girven <jonathan.girven at trickbook.com> wrote:
>> Is the issue also reproducible if you use the native mpeg4
>> encoder instead of an external library?
>> $ ffmpeg -i BigBuckBunny_320x180_t10.mp4
>> -i full_dillon_in_pro_audio.mp3
>> -filter_complex "[1:a][0:a]amix=inputs=2[m]" -map 0:v -map [m]
>> -vcodec mpeg4 -qscale 2 out.mp4
>
> It is not reproducible with the native mpeg4 library, no. Should I
> contact the x264 mailing list instead?
>
>> Its not reproducible if one disables video with -vn.
>
> Agreed.

Try latest FFmpeg git master and report back.