#7228: The codec option 'sc_factor' disappeared from the libavcodec 4.0
-------------------------------------+-------------------------------------
Reporter: strezen | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: sc_factor | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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The encoding option 'sc_factor' which was available in ffmpeg 3.x now
disappeared but still being referenced in the documentation (see
doc/codecs.texi file):
{{{
$ ./ffmpeg -i input.mkv -sc_factor 4 -c:v mpeg2video -f mpeg2video
output.m2v
ffmpeg version N-91151-g50df4c958b Copyright (c) 2000-2018 the FFmpeg
developers
built with gcc 7 (Debian 7.3.0-19)
configuration:
libavutil 56. 18.102 / 56. 18.102
libavcodec 58. 19.102 / 58. 19.102
libavformat 58. 16.100 / 58. 16.100
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 24.100 / 7. 24.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
Unrecognized option 'sc_factor'.
Error splitting the argument list: Option not found
}}}
but:
{{{
@item sc_factor @var{integer} (@emph{encoding,video})
Set value multiplied by qscale for each frame and added to
scene_change_score.
}}}
So it either was dropped or replaced with some other encoding option but
this change wasn't properly documented so old scripts using that option
now fail. In any case there is a discrepancy between source code and
documentation.
Best regards,
Andrey
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7228>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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