[FFmpeg-devel] [PATCH 0/6] avformat/movenc: normalize on AC-3 parser usage

Jan Ekström jeebjp at gmail.com
Fri Jun 3 15:46:14 EEST 2022


The simplified parsing currently in `mov_write_ac3_tag` trusts the content
of the packets a bit too much (the AC-3 parser returns all data fed to it,
including any possible data before the start code), while the existing E-AC-3
logic does proper header validation by utilizing the (E-)AC-3 parser.

Thus, normalize on AC-3 parser usage for both AC-3 and E-AC-3. 

Jan Ekström (6):
  avcodec/ac3_parser{,_internal}: expose AC-3 bit_rate_code
  {configure,avformat/movenc}: enable AC-3 parser for movenc
  avformat/movenc: enable handle_eac3 to handle AC-3 tracks
  avformat/movenc: move eac3_info definition so that it can be used for
    AC-3
  avformat/movenc: utilize existing AC-3 parsing workflow for AC-3
  avformat/movenc: handle OOM situations when parsing AC-3 headers

 configure                        |   2 +-
 libavcodec/ac3_parser.c          |   3 +
 libavcodec/ac3_parser_internal.h |   1 +
 libavformat/movenc.c             | 123 ++++++++++++++++---------------
 4 files changed, 69 insertions(+), 60 deletions(-)

-- 
2.36.1



More information about the ffmpeg-devel mailing list