New submission from mt <[email protected]>: When I try to reencode some DTS audio track first to AAC 2 channel and AC3 6 channel, I get an error "Resampling with input channels greater than 2 unsupported. Can not resample 6 channels @ 48000 Hz to 2 channels @ 48000 Hz". First AC3 6 channel and then AAC 2 channel works. AFAIK some devices like AppleTV require the AAC track first.
ffmpeg -i input.mkv -y -map 0:0 -vcodec copy -map 0:1 -acodec aac -ab 128k -ac 2 -strict experimental output.m4v -map 0:1 -acodec ac3 -ab 448k -ac 6 -newaudio produces the error. ffmpeg -i input.mkv -y -map 0:0 -vcodec copy -map 0:1 -acodec ac3 -ab 448k -ac 6 output.m2v -map 0:1 -acodec aac -ab 128k -ac 2 -strict experimental -newaudio works. ---------- messages: 13452 priority: normal status: new substatus: new title: DTS reencode to AAC 2ch/AC3 6ch type: bug ________________________________________________ FFmpeg issue tracker <[email protected]> <https://roundup.ffmpeg.org/issue2551> ________________________________________________
