Fixes the following warning:
libavutil/opt.c:101:47: warning: '*' in boolean context, suggest '&&' instead

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Requested-by: wm4 ([FFmpeg-devel] [PATCH] avutil/opt: Support max > INT64_MAX in write_number() with AV_OPT_TYPE_INT64)
Requested-by: ronald ([FFmpeg-devel] [PATCH] avutil/opt: Support max > INT64_MAX in write_number() with AV_OPT_TYPE_INT64)
Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Found-by: Andreas
Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes Ticket5618

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

for compatibility with platforms that treat it
as newline

Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

This avoids spurious library rebuilds when only the test program
code is changed and simplifies the build system.

This includes documentation and other modifications by
Lukasz Marek and Martin Storsjö.

Signed-off-by: Martin Storsjö <martin@martin.st>

Also add const to pointers in static functions within opt.c where
possible/necessary.

Signed-off-by: Martin Storsjö <martin@martin.st>

Previously errors could result in random entries to be lost.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Trim unneeded leading components and trailing zeros.
Move the formating code in a separate function.
Use the function also to format the default value, it was currently
printed as plain integer, inconsistent to the way it is parsed.

Example:
% ./ffmpeg -h encoder=gif
[...]
GIF encoder AVOptions:
  -gifflags          <flags>      E..V.... set GIF flags (default offsetting+transdiff)
     offsetting                   E..V.... enable picture offsetting
     transdiff                    E..V.... enable transparency detection between frames

Example:

% ./ffmpeg -h encoder=aac
  -aac_coder         <int>        E...A... Coding algorithm (from -1 to 3) (default twoloop)
     faac                         E...A... FAAC-inspired method
     anmr                         E...A... ANMR method
     twoloop                      E...A... Two loop searching method
     fast                         E...A... Constant quantizer
[...]

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

FATE refs changed to accomodate for the new default behavior of the function.
Numbers are now interpreted as a channel layout, instead of a number of channels.

Deprecated in 2011/10

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes fate failures on windows

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

CC: libav-stable@libav.org
Bug-Id: CID 1257771

Fixes CID1257010

Reviewed-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1257008

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes: CID1257007

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

It indirectly also fixes av_opt_free for NULL objs.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Function allows to create string containing object's serialized options.
Such string may be passed back to av_set_options_string() in order to restore options.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

New function allows to check if option is set to its default value

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

In general this commit prepares opt tests to be added to fate.

The commit set some non-zero defaults for test options.
It allows to check if defaults are really set.

Added printing of default values.

Added more cases for testing av_set_options_string

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

set_string_binary crashes when called with val==NULL

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Philip DeCamp <decamp@mit.edu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>