On Fri, 20 Sep 2019, 08:58 Adam Johnson, <m...@adamj.eu> wrote: > I have some aiff files in my music production library that I'd like to > convert to flac. However they aren't recognized by ffmpeg: > > $ ffmpeg -i Raylon-190-Full.aif > ... > [aiff @ 0x7fc3ce800000] unknown or unsupported codec tag: able is not > implemented. Update your FFmpeg version to the newest one from Git. If the > problem still occurs, it means that your file has a feature which has not > been implemented. > [aiff @ 0x7fc3ce800000] If you want to help, upload a sample of this file > to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing > list. (ffmpeg-devel@ffmpeg.org) > [aiff @ 0x7fc3ce800000] could not find COMM tag or invalid block_align > value > Raylon-190-Full.aif: Operation not permitted > > These files can only be decoded by Ableton Live. Quicktime, VLC, MPlayer, > and ffmpeg can't read them. I believe the 'able' tag is Ableton's > proprietary format. I know it's 24 bit but no more. > > I exported one through Ableton to a 44.1khz 24 bit wav and the filesize > comes out exactly the same so I know the format is not compressed. Also the > exported wav matches the waveform precisely since if I add it back with > inverted phase I hear nothing. > > Here is a sample file, in aif format and wav format: > > https://files-adamj-eu.s3.amazonaws.com/ffmpeg-devel/Raylon-190-Full.aif > https://files-adamj-eu.s3.amazonaws.com/ffmpeg-devel/Raylon-190-Full.wav
This list is for posting patches,you should post on ffmpeg-user instead. It might make sense to also post an aiff output if possible via Ableton. I wasn't clear from your post of the aiff file was an export from Ableton, or raw capture files stores in a working directory. Best, Kieran. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
