On 9/20/19, 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 > > (I tried uploading to the ftp server as per debug message but couldn't > connect.) > > Thanks for any help reverse engineering this format!
Looks like encrypted, need binary responsible for encryption. > > -- > Adam > _______________________________________________ > 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". _______________________________________________ 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".