This is disabled by default when the empty_moov flag is enabled
42cb050 lavf/movenc+dashenc: add automatic bitstream filtering
libavformat/dashenc.c | 43 +++++++++++++++++++-
libavformat/movenc.c | 107 ++++++++++++++++++++++++++++++++++++++-----------
2 files changed, 124 insertions(+), 26 deletions(-)