Hi Erik, On Fri, Dec 1, 2017 at 12:25 PM, Erik Dobberkau <erik.dobber...@gmail.com> wrote:
> Am Freitag, 1. Dezember 2017 schrieb Robert Krüger : > > > Hi Kieran, > > > > On Thu, Nov 30, 2017 at 5:39 PM, Kieran O Leary < > kieran.o.le...@gmail.com > > <javascript:;>> > > wrote: > > > > > On Thu, Nov 30, 2017 at 4:38 PM, Kieran O Leary > > > <kieran.o.le...@gmail.com <javascript:;>> wrote: > > > > Hi, > > > > > > > > On Thu, Nov 30, 2017 at 3:46 PM, Robert Krüger > > > > <krueger@lesspain.software> wrote: > > > >> Hi, > > > >> > > > >> is there a way to mux an mxf file only containing a pcm audio > stream? > > > When > > > > > > > > You could try using the op-atom muxer as it looks like your command > is > > > > defaulting to op1a. Add -f mxf_opatom to your command line. > > > > ffmpeg -i > > > > /Users/krueger/lesspain/samples/software/compressor/ > > > compressor4_1080_25p_apple_devices_best_compat_2s.m4v > > > > -vn -c:a pcm_s16le -f mxf_opatom ~/tmp/ffmpeg_pcm16_rewrap.mxf > > > > > > > > [...] > > > > > > > >> > > > >> Is this a conscious limitation of the muxer or am I missing a > command > > > line > > > >> option? > > > >> > > > > > > > > It looks like it. The reasons why I suggested trying OP-Atom is that > > > > this seems to be performing a specific check for OP1a. > > > > > Which is wrong, btw. There is a spec for MXF_OP1a_AES3 to wrap the > respective audio without a picture essence. I would guess MCA labels will > have to be provided though, and also the audio samples would have to be > formatted to AES, which ffmpeg afaik currently doesn't do. > > Best, > Erik > > tanks a lot for the additional info! In my case, it's fine for my limited scope of application where I need to generate audio-only MXF files that just need to be decodable by ffmpeg for internal testing purposes, so I'm still OK with what it does now but I will keep that in mind for later when we might want to do more with it. Best, Robert _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
