[FFmpeg-user] how do i strip away all metadata from input source?

[Auguste Pop]

hi,

i was using -map_metadata -1 -map_metadata:s:0 -1 -map_metadata:s:1
-1, but it does not work now. every metadata from the source is copied
over to the output file.

i have tried to google it, but it only came up with some answer with
older syntax that ffmpeg no long use.

i am using archlinux
$ ffmpeg -version
ffmpeg version N-37208-g01fcbdf
built on Feb  7 2012 10:36:16 with gcc 4.6.2 20120120 (prerelease)
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis
--enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora
--enable-libgsm --enable-libspeex --enable-postproc --enable-shared
--enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libschroedinger --enable-libopenjpeg --enable-librtmp
--enable-libpulse --enable-gpl --enable-version3
--enable-runtime-cpudetect --disable-debug --disable-static
libavutil      51. 34.101 / 51. 34.101
libavcodec     53. 60.100 / 53. 60.100
libavformat    53. 31.100 / 53. 31.100
libavdevice    53.  4.100 / 53.  4.100
libavfilter     2. 60.100 /  2. 60.100
libswscale      2.  1.100 /  2.  1.100
libswresample   0.  6.100 /  0.  6.100
libpostproc    52.  0.100 / 52.  0.100

thank you for your kind attention.

best regards,