It's a hack which was created to allow for multiple options with
different defaults to refer to same field (e.g. 'b' vs 'ab'). There is
no need for it anymore.
That is, unless the caller explicitly asks for them.
Prevents conflict between e.g. the 'loop' option in img2 demuxer and
'loop' flag in AVCodecContext.
This actually matches what av_get_double did earlier, the
0.0/0.0 division was intentional, for producing NAN.
Still keeping the check for the return value from
av_get_number, for clarity.
Signed-off-by: Martin Storsjö <martin@martin.st>
This avoids doing a division by zero if the option wasn't found,
or wasn't an option of an appropriate type.
Signed-off-by: Martin Storsjö <martin@martin.st>
The new error code is better than AVERROR(ENOENT), which has a
completely different semantics ("No such file or directory").
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
eval API.
More grep-friendly and more consistent with the rest of the FFmpeg
API.
Originally committed as revision 25708 to svn://svn.ffmpeg.org/ffmpeg/trunk
containing an error code.
Allow these functions to convey the reason of the failure to the
calling function, failure which is not always due to a parsing error
but it may depend for example on a memory problem.
Also fix several potential memleaks.
Originally committed as revision 23402 to svn://svn.ffmpeg.org/ffmpeg/trunk
ff_parse_and_eval_expr(), place the names for constants/functions
before the corresponding values.
This looks more readable, as the user is expected to know the names
before the values.
Originally committed as revision 23149 to svn://svn.ffmpeg.org/ffmpeg/trunk
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
Original commit message:
Very evil missuse of svn to test if AVOption and AVOption2 are compatible.
If this test triggers anywhere for anyone, revert this commit immedeatly.
Ill revert this in a day or 2, its just so we know beforehand if the idea
with the union is doable or not without breaking ABI/API.
Originally committed as revision 20264 to svn://svn.ffmpeg.org/ffmpeg/trunk
If this test triggers anywhere for anyone, revert this commit immedeatly.
Ill revert this in a day or 2, its just so we know beforehand if the idea
with the union is doable or not without breaking ABI/API.
Originally committed as revision 20249 to svn://svn.ffmpeg.org/ffmpeg/trunk
r18826 | stefano | 2009-05-14 20:50:58 +0200 (Thu, 14 May 2009) | 2 lines
Make av_set_string3() print a message in case of unknown option.
This change led to multiple identical error messages to be printed if an option
was not found.
Originally committed as revision 20172 to svn://svn.ffmpeg.org/ffmpeg/trunk
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
Include "libavutil/common.h" where we use llrint() in case ffmpeg's
own llrint() is to be used.
Originally committed as revision 16282 to svn://svn.ffmpeg.org/ffmpeg/trunk
av_set_string() and av_set_string2(), they will be dropped at the next
major bump.
Originally committed as revision 16243 to svn://svn.ffmpeg.org/ffmpeg/trunk
to distinguish between a not found option failure and a not valid
value failure.
Originally committed as revision 16156 to svn://svn.ffmpeg.org/ffmpeg/trunk
av_set_string() and av_set_string2() do not accept as parameter the
name of a named constant.
This avoids av_set_string2() and av_set_string() to misbehave when
there is an option and a named constant with the same name.
See the thread: "[PATCH] Remove libavcodec/opt.c:set_all_opt()".
Originally committed as revision 16134 to svn://svn.ffmpeg.org/ffmpeg/trunk
Anton Khirnov
Mans Rullgard
Diego Biurrun
Martin Storsjö
Stefano Sabatini
Michael Niedermayer
Andreas Öman
Stefan Gehrer