Extends the playlist table with media_kind to handle playlist queries like
this from Apple Music:
/databases/71/containers?session-id=12345678&revision-number=4&delta=0&query=('dmap.itemname:Library%20name','com.apple.itunes.extended-media-kind:1','com.apple.itunes.extended-media-kind:32','com.apple.itunes.extended-media-kind:128','com.apple.itunes.extended-media-kind:65537')&meta=dmap.itemid,dmap.itemname,dmap.persistentid,dmap.parentcontainerid,com.apple.itunes.is-podcast-playlist,com.apple.itunes.special-playlist,com.apple.itunes.smart-playlist,dmap.haschildcontainers,com.apple.itunes.saved-genius,dmap.objectextradata
Like with iTunes, it has adverse effects to announce support for DAAP groups,
so with this change we also check if user-agent is "Music" before deciding what
to announce.
Setting Cache-Control to "no-cache" tells a client to always make a
request to check if the version in the client cache is still valid
(response code 403 not modified).
The player will write 24 bit samples using 3 bytes, not 4, so the appropriate
sample format is SND_PCM_FORMAT_S24_3LE, not SND_PCM_FORMAT_S24_LE.
For extra protection we also use snd_pcm_bytes_to_frames() instead of BTOS(),
because that way we can be more certain that the buffer is not too short for
snd_pcm_writei().
Also changes relative seeking behavior:
- seeking behind the the current track only switches to the previous
track, if we are not more than 3 seconds into the current track,
otherwise starts current track from the beginning
- seeking beyond the current track will start the next track from the
beginning
This implementation uses a tmpfile for storage of the artwork, plus it uses
artwork_get() which means that it scales the image as requested by the client.
It also does not create a tmpfile unless we actually receive artwork.
When pipe playback is started, but no data is written to the pipe, the input
loop would bring the cpu to 100%. This fix limits the loop like it was before
player refactor.
This adds a new settings component for user configurable options that
can be changed through the JSON API.
The settings are stored in the admin db table and not in the conf-file.
Since it is unknown how to do real sync on Chromecast, this commit instead adds
a primitive delay to the stream, so that it is at least somewhat closer to
Airplay/local audio.
Also some cleanup of unused stuff.
* [db,jsonapi] case insensitive directory/file listing
* [jsonapi] file listing of playlist uses same VPATH ordering as per directory and files
* [db,jsonapi] sorting via existing S_VPATH
* [db] replace LOWER with COLLATE NOCASE
