Hi,
I’m trying to add ebur128 metering metadata to my stream's audio, for the
purpose of testing I have tried:
ffmpeg -i test.mp4 -filter_complex ebur128=metadata=1 -vcodec copy
-acodec libfdk_aac -f nut - | ffprobe -show_frames - | more
But it doesn't seem to add the metadata. Running a very similar command in
ffbrobe using -lavfi I can see the frame metadata:
ffprobe 2>/dev/null -f lavfi amovie=test.mp4,ebur128=metadata=1 -show_frames
-show_format
Looking something like:
TAG:lavfi.r128.M=-37.871
TAG:lavfi.r128.S=-34.617
TAG:lavfi.r128.I=-34.174
TAG:lavfi.r128.LRA=7.260
TAG:lavfi.r128.LRA.low=-38.470
TAG:lavfi.r128.LRA.high=-31.210
Why is it that I can’t see the same metadata in the streams created by ffmpeg
using my original ffmpeg command? For context, I will be trying to add the
metadata to a live stream as it is sent so I can consume the metering data in
an application receiving the stream.
Thanks,
Greg
_______________________________________________
ffmpeg-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
