On Sat, Feb 16, 2019 at 06:10:44 -0500, Ted Park wrote: > So I think we can assume gsm wasn’t a format that was implemented in > avformat at that point.
That's what ffmpeg did indeed complain about - the format (as given with "-f gsm"), not the codec. We can actually check that it wasn't implemented. It was introduced with this commit which first went into ffmpeg 3.1: https://github.com/FFmpeg/FFmpeg/commit/b0c026a27f9498b8f118684a2830ca7df7eae374 Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
