Signed-off-by: Diego Biurrun <diego@biurrun.de>

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>

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

Deprecated in 2011/10

Convert last users to av_opt_get_*() counterparts.

Also fix typo found by Lou Logan:
Sacrifying -> Sacrificing
Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

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>

It is av_opt_set now.

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

In order to support metadata being set as an option, it's necessary to be able
to set dictionaries as values.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

Existing av_opt_set_dict doesn't accept flags.
It doesn't allow to pass options to nested structs.
New function alllows that.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

AVOptionRange is not flexible enough to store AV_OPT_TYPE_IMAGE_SIZE
ranges. Current implementation can only store pixel count.
This patch aims to keep backward compatibility and extend
AVOptionRange with possibility to store width/height ranges.
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

It was never used since it was added and the things it was intended for
are now exported differently.

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

The new type is compatible with AV_OPT_TYPE_INT64, but allows to specify
channel layouts using the format accepted by av_get_channel_layout().

Success code must be >= 0 and not == 0, consistently with the
implementation.

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Also add parens on macro arguments.

Add av_int_list_length() to compute a list length.
Add av_opt_set_int_list() to set a binary option.
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The interface is implemented against the style of the other options
accessors. Possibly simplify programmatic setting of options.

Reveiwed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Do not skip the end delimiter.
Reserve positive return values.
This is an API break, but the function was introduced less than
two weeks ago.

This function does the low-level work of av_opt_set_from_string()
but can be used when there is no option context or when a generic
handling of unknown keys is needed.

av_opt_set_from_string() is changed to make use of it.