Add a new general config setting allow_origin that is included as
Access-Control-Allow-Origin header in http responses. This allows to make http
request against forked-daapd from browsers with enabled CORS
(https://www.w3.org/TR/cors/) via JavaScript XMLHttpRequest.
Per default the setting is not defined and no Access-Control-Allow-Origin header
is included in the response.
Also includes the skeleton for perhaps supporting video in the future. Adds more fine-grained
ffmpeg/libav compability checks. Dependency on libavresample/libswresample exchanged with
dependency on libavfilter, which seems more versatile.
- Try to not return items which a client can't play
- Remove inotify subscription to IN_MODIFY and IN_CREATE
- Fix crash on unknown codec type in transcode.c
- Probably added some new bugs...
It is now clear that multi-library support will not happen, so remove whatever
provisions were in the code for that.
It comes with a small change to the configuration file, too.
With this, DB schema version went to 9.
lseek() returns an off_t and not an int, using an int to store and
test the return value means we'll error out when the position in the file
gets past INT_MAX.
eventfd has less overhead than a pipe, works as a counter and uses a
single fd. Use it on Linux if available (that should be pretty much
always given the glibc and kernel requirements).
512k might be a bit too much, as it can take time to read 512k from the
filesystem (and we're using a blocking read) or from the decoder. Going
down to 64k will make this more manageable and improve the response time
when streaming to multiple clients at the same time.
evbuffer_read() is really meant to read from sockets and not regular
files. It also looks like evbuffer_read() was causing issues with large
files, locking up a little below 2 GB for an unknown reason (couldn't
reproduce).
Try to be a bit more strict about integer types, use off_t or int64_t for
file size and file offsets.
Replace safe_ato*() by safe_atoi32() and safe_atoi64(), fix integer types
at call sites to match.
Hinting the OS about our behaviour shouldn't make a big difference in
performance but it will help the OS manage its disk cache and can reduce
memory pressure on small systems.
