It will be useful outside of avprobe.

Make sure the behavior does not change with the locale.

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

Based on a patch by Jan Gerber <j@v2v.cc>

func2_arg is the same as func_arg, except it has one additional
parameter. Change all func_arg callbacks to take that parameter (and
ignore it).

This also makes sure the function pointers are stored via the same
union member as they are accessed via.

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

Don't require every caller to supply them.

show_foo() functions are declared as void show_foo(void), but called as
int show_foo(const char*, const char*).

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

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

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

According to its description, it is supposed to be the LCM of all the
frame durations. The usability of such a thing is vanishingly small,
especially since we cannot determine it with any amount of reliability.
Therefore get rid of it after the next bump.

Replace it with the average framerate where it makes sense.

FATE results for the wtv and xmv demux tests change. In the wtv case
this is caused by the file being corrupted (or possibly badly cut) and
containing invalid timestamps. This results in lavf estimating the
framerate wrong and making up wrong frame durations.
In the xmv case the file contains pts jumps, so again the estimated
framerate is far from anything sane and lavf again makes up different
frame durations.

In some other tests lavf starts making up frame durations from different
frame.

Avoid possible clashes.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Make opt_output_format return the correct value.

JSON usage is quite widespread.

Make the output valid INI serialization.

Do not use decimals if not needed.

This is easier to parse with automated tools.

Fixes "memleak" on closing avprobe to make valgrind happy.

This is useful for writing unit tests.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Calling the init function will become mandatory at some later
point. By calling it, more heavy network init (such as SSL/TLS
library init) can be done once at startup, instead of implicitly
when used (which could lead to it being done a number of times).

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