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

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

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

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

Double does not have enough precision to represent all int64 numbers
exactly.

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

These files use NAN/INFINITY but didn't include mathematics.h to get
the fallback definitions if the system lacks the macros.
Signed-off-by: Martin Storsjö <martin@martin.st>

Introduce a new function to set binary data through AVOption,
avoiding having to convert the binary data to a string inbetween.
Signed-off-by: Martin Storsjö <martin@martin.st>

With the changes in 3b3ea346,
"Remove all uses of deprecated AVOptions API", av_opt_flag_is_set
was broken, since it now uses av_opt_find, which doesn't return
named constants unless a unit to look for the constant in is given.

This broke enabling LATM encapsulated AAC output in RTP.
Signed-off-by: Martin Storsjö <martin@martin.st>

Just for naming consistency, no functional changes.

Split actual writing to read_number() in the same way as write_number().
Allows set_string_number() to write to a caller-provided destination.

New functions can get values from child objects, properly report error
codes and have consistent naming and signatures.

Deprecate av_set_*

New functions support setting values on children, return error codes
instead of options and have consistent naming and signatures.

This will allow the caller to enumerate child contexts in a generic way
and since the API is recursive, it also allows for deeper nesting (e.g.
AVFormatContext->AVIOContext->URLContext)

This will also allow the new setting/reading API to transparently apply
to children contexts.

write_number() does the actual writing of the supplied
number to destination. Move finding the option and choosing destination
address out of it.

Also stop attempting to honor the alloc parameter, as things break
horribly in that case.
It will be removed in upcoming successor to av_set_string3.

They will only ever be <=0 if the option is broken, in which case this
check is hiding a bug.

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.

Also change it to be more readable.

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.

Signed-off-by: Mans Rullgard <mans@mansr.com>

These statements cannot be reached and are thus not needed.
This removes a number of compiler warnings.
Signed-off-by: Mans Rullgard <mans@mansr.com>

libavutil/opt.c:604:1: warning: missing braces around initializer [-Wmissing-braces]

This way the caller can pass all the options in one nice package.

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

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>

This breaks API and ABI.