I found a workaround now, involving the linux-command 'dd‘ . Instead of using the original command which has 4 seconds of delay:
ffmpeg -ss 4:0:0 -i M0495978.MP2 testLocal.mp3 I’m now using the following combination of dd (on Linux, in order to cut a portion of a file) and ffmpeg without noticable delay: dd ibs=1152 skip=600000 count=200 if= M0495978.MP2 | ffmpeg -i pipe:0 test.mp3 In my example file, my frames have a constant frame size of 1152 bytes with a duration of 24ms. So I skip 600000 blocks of 24ms which correspond to 4 hours. This command starts transcoding without any noticable delay! (See also the discussion around my related question http://ffmpeg.org/pipermail/libav-user/2018-March/010973.html) _______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
