Update internal libav to v9.141.2

 - adpcm: Write the proper predictor in trellis mode in IMA QT
 - adpcm: Avoid reading out of bounds in the IMA QT trellis encoder
 - Check mp3 header before calling avpriv_mpegaudio_decode_header().
 - Check if an mp3 header is using a reserved sample rate.
 - lzo: Handle integer overflow
 - sgidec: fix an incorrect backport
 - avconv: do not send non-monotonous DTS to the muxers.
 - avconv: make -shortest work with streamcopy
 - matroskaenc: do not write negative timestamps

1 files changed, 0 insertions, 0 deletions

diff --git a/gst-libs/ext/libav b/gst-libs/ext/libav
-Subproject 2340ce6954db2c0a79c57fcba7f45e2fcc20cdc
+Subproject 3ecbd911ff9177097820e5d00401c9bf29e5d16