[FFmpeg-devel] [PATCH 0/2] document cutoff option properly, and add support to libmp3lame

Moritz Barsnick barsnick at gmx.net
Fri Dec 30 19:08:12 EET 2016

Hi, this pair of commits adds cutoff support to libmp3lame, and documents
the option "global" to lavc such that it is clear that it is *not* generally

Noted and requested in this thread:

Encoded an MP3 without the patch, with the patch, and with the patch and a
meaningful low cutoff value. Checked the spectrum using the showspectrum
filter, and noted a significant cutoff. No proper frequency analysis done,
just assuming libmp3lame does its thing correctly.

Moritz Barsnick (2):
  lavc/libmp3lame: add support for cutoff
  doc: document cutoff option to ac3 and adjust the option's global

 doc/codecs.texi         | 3 ++-
 doc/encoders.texi       | 8 ++++++++
 libavcodec/libmp3lame.c | 4 ++++
 3 files changed, 14 insertions(+), 1 deletion(-)


More information about the ffmpeg-devel mailing list