We need to unescape the module argument values, just like pulseaudio
does. We might end up with invalid escape sequences for the JSON
parser.
Fixes#3071
Move the port property logic from the adapter to the port itself.
The port was already doing some of the same work as a fallback but can
just as well do everything. This also makes things more unified when
there is no adapter used.
Add some more common channel name shortcuts supported by pulseaudio.
Make sure we match the full channel-name, not just the prefix.
Generate an invalid channel map when an invalid channel name was
given instead of a partial channel map.
When a stream uses the FIX_ flags it should negotiate to the format of
the sink or source it connects to. To do this, look up the sink or
source and look at the format, use this as the allowed format for the
stream when the FIX flags are set.
Make it still possible to override with with properties. Use
audio.position to make it possible to set a channelmap override.
The effect is that the null-sink will report the given format in the
Sample Specification, which is what some applications might expect when
they pass a format parameter.
Use a different key than the usual one to select an audio format when we
are fixating a stream format to avoid confusion.
So pulse.fix.rate, pulse.fix.format, pulse.fix.channels are now used to
force a specific format when the stream has the FIX_ stream flags.
Add support for using custom format, rate or channels when the streams
asks to fix those parameters for us.
Some streams might expect to see S16LE when they connect to a sink in
S16LE when the FIX_FORMAT flag is set but this is not the case in
PipeWire because the audio DSP pipeline works in F32, and so F32 is
choosen. Make it possible to use a pulse.rule with a audio.format
property to control this.
Make pw_getrandom() more usable by handling the EINTR case and returning
< 0 when there was an error or not enough random data was available.
Make a new pw_random() function that uses pw_getrandom() but falls back
to a pseudo random number generator otherwise. This pseudo random number
generator is seeded with either data from the urandom source or from the
current time when pipewire is initialized.
In most cases where crytographic security is not required pw_random()
should be easier to use.
This commit implements generating /etc/security/limits.d/20-pw-defaults.conf and
/etc/security/limits.d/25-pw-rlimits.conf files. The numbering is arbitrary and
may very well warrant being in the reverse order, however `man 5 limits.conf`
does not appear to specify the parsing order or even say exactly how multiples
matches will resolve, so the value can be adjusted later, if required.
The actual limit values, the match rule and even whether each file is to be
installed can be changed via the build system before compilation. Likewise
the files can be modified or (re)moved during distro package building phase.
The 20-pw-defaults.conf should only be installed on legacy systems lacking both
a modern kernel and up to date systemd, because all it does is set the current
Linux default. Accordingly its not installed by default.
Signed-off-by: Niklāvs Koļesņikovs <89q1r14hd@relay.firefox.com>
Use the timestamps directly as the ringbuffer index. We can save some
conversions to bytes and there is a direct mapping to RTP timestamp,
clock position and ringbuffer index.
Simplify the source a little. Remove the buffering state, we always
start with read and write pointers separted by the target buffering.
