Hi Alex, > I guess there is somehing wrong with the channel mapping, but without the > fliter_complex the mapping seems to be okay.
I think the filter_complex messes up the mapping. Note this mapping from your output: > Stream mapping: > Stream #0:2 (pcm_s24le) -> atrim > atrim -> Stream #0:0 (pcm_s24le) > Stream #0:0 -> #0:1 (copy) and this result: > Output #0, mxf, to 'test_new.mxf': > Stream #0:0: Audio: pcm_s24le, 48000 Hz, mono, s32 (24 bit), 1152 kb/s > Stream #0:1: Video: mpeg2video, yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], and this warning: > [mxf @ 00000000003b69c0] there must be exactly one video stream and it must > be the first one I'm sure that's your issue. The filter seems to be messing up the mapping, at least in this automatic case. Instead of > C:\>ffmpeg -i test.mxf -vcodec copy -map 0:v -acodec pcm_s24le -map 0:1 -map > 0:2 -filter_complex "[a:1]atrim=start=0.035" test_new.mxf you probably need something like ffmpeg -i test.mxf -vcodec copy -map 0:v -acodec pcm_s24le -map 0:1 -filter_complex "[a:1]atrim=start=0.035[ashifted]" -map "[ashifted]" test_new.mxf (Untested) Note that I'm trying to explicitly map the filter output to a particular stream, avoiding automatic mapping. You may have to play around a bit more with the map options. Is this a bug, BTW? Documentation on "-map" states: > The first -map option on the command line specifies the source for > output stream 0, the second -map option specifies the source for > output stream 1, etc. Digging further, documentation of "-filter_complex" clarifies: > Output link labels are referred to with ‘-map’. Unlabeled outputs > are added to the first output file. So the first documentation section is somewhat unclear, as it is "disturbed" by the second behavior. (And in the second section: "first output file" -> "first output stream", right?) Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
