Fixes#572.
As discussed in the issue, there's a risk that toxcore may not hold the
maximum bitrates libvpx supports, if toxcore insists on using integer
type. I initially proposed to have another flag in set(), so that we can
use unsigned type instead. iphydf came up with a better solution, that is
splitting the original functions, one for audio, one for video. Now, we
could safely replace int32_t with uint32_t.
Also: clean video_bit_rate_invalid()
Though this is not a part of issue #572, as it's used in the
toxav_bit_rate_set(), i cleaned the code. As mannol said, there should be
a check. Uint32_t is large enough to hold the maximum bitrates libvpx
supports, but user may pass a value larger than uint while smaller than
uint32_t. Thanks to the reminding from nurupo, it's no longer a stub
function.
Bitrate error enums are shared for both audio and video
https://github.com/TokTok/c-toxcore/pull/578#issuecomment-360095609, just
as iphydf said.
Turning this code:
```c
if (cond) { ... return 0; }
if (!cond) { ... return 0; }
return -1;
```
into:
```c
if (cond) { ... return 0; }
else { ... return 0; }
```
The `return -1` in the first variant can never happen.
This way, developers compile toxcore, toxav, and toxencryptsave as C++ at
least once at home, reducing the likelyhood of running into travis
failures where we compile as C++ in the windows build.
This allows us and users to reproducibly build verified versions of the
library with checksums. It will power the toktok-stack continuous build
with checked-in checksums at specific git revisions.
Still run all the jobs during cron and regular push to branch. We
disabled build for push to branch, so cron is the only place where all
builds are run. This also means we need to worry less about spending time
in nightly builds, because they occur only once a day.
See https://github.com/travis-ci/travis-ci/issues/9071
This isn't adding value. We're going to redo the whole rpc test framework
in the future, after a lot of refactoring that the hstox test currently
just stands in the way of.
The ping.api.h file looks rather ugly, but it works. This is an exercise
in finding the complete set of use cases needed from apidsl for toxcore.
We'll try to make things work as much as possible, and then make apidsl
better and make the .api.h files pretty.
To prevent top-level linking of all libraries.
Problem: ```pkg-config --libs toxcore``` returns all libraries that are
required by all libtox*.so libraries. This is wrong because for a
dynamically linked executable only top-level libraries need to be
supplied. ```pkg-config --libs --static toxcore``` should return all
libraries for the statically linked executable.
For example, the ToxBot https://github.com/JFreegman/ToxBot executable
uses pkg-config and is linked with the opus library, which is wrong.
Based on #533.
