ffprobe: show best_effort_timestamp in the frame section

This is useful for debugging.

Reference and ffprobe.xsd changes done and tested by Stefano Sabatini.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
fate: update after 5f6c21117f23a3c825777cdb0565a21c5a468d35

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/msmpeg4dec: print error in case of invalid vlc in msmpeg4_decode_dc for version <=2

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/msmpeg4dec: initialize dir_ptr in error cases

Fixes use of uinitialized memory
Fixes: msan_uninit-mem_7f01b8799186_7278_msnaudio.asf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>