This bug appears to have been reported on gihub and subsequently fixed in November 2017:
https://github.com/snapcrafters/ffmpeg/issues/2
https://github.com/snapcrafters/ffmpeg/commit/c52eea8cbf05c27cbe2dec3ebb9e8d234406610c
ffmpeg snap on ubuntu 18.04 appears to be from August 2017.
Snap info for ffmpeg is as follows:
:~$ snap info ffmpeg
name: ffmpeg
summary: Record, convert, and stream audio and video
publisher: snapcrafters
contact: https://github.com/snapcrafters/ffmpeg/issues
license: unknown
description: |
FFmpeg is a collection of libraries and tools to process multimedia content
such as audio, video, subtitles and related metadata.
commands:
- ffmpeg
snap-id: Ee7LGphwQR669pcfCCdl0oJQouta69to
tracking: stable
refreshed: 2017-08-23T14:44:41+01:00
installed: N-76538-gb83c849 (3) 150MB classic
channels:
stable: N-76538-gb83c849 (3) 150MB classic
candidate: ↑
beta: ↑
edge: N-76538-gb83c849 (8) 150MB classic
How do I go about raising this to whoever maintains the ubuntu snap repository, so that this snap can be repackaged with the working spec in github?