[FFmpeg-user] webm_dash_manifest muxer: operation not permitted

[Christian Ebert]

Hi,

Has anyone got the webm_dash_manifest muxer to work? I just get
this:

$ ffmpeg -f webm_dash_manifest -i test1.webm \
> -f webm_dash_manifest -i test1.webm \
> -f webm_dash_manifest -i test2.webm \
> -f webm_dash_manifest -i test3.webm \
> -map 0:a -map 0:v -map 1:v -map 2:v \
> -c copy -f webm_dash_manifest \
> -adaptation_sets "id=1,streams=0, id=2,streams=1,2,3" \
> test.xml
ffmpeg version N-65687-g427bcdf Copyright (c) 2000-2014 the FFmpeg developers
  built on Aug 16 2014 23:37:40 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-ffserver --enable-shared --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libvidstab --extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
  libavutil      54.  4.100 / 54.  4.100
  libavcodec     56.  0.101 / 56.  0.101
  libavformat    56.  1.100 / 56.  1.100
  libavdevice    56.  0.100 / 56.  0.100
  libavfilter     5.  0.100 /  5.  0.100
  libswscale      3.  0.100 /  3.  0.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  0.100 / 53.  0.100
test1.webm: Operation not permitted


What am I missing?

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