play/pause/toggle/stop/next/prev. Spotify commands run on the session task
(same thread as cspot's frame handling) and the POST waits until they ran,
so it answers the new state. HLS pause stops fetching and resume rejoins at
the live edge; next/prev on HLS and anything on tone/off return 409.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Source, state, artist/title/album, position and duration (from cspot's
playback state, so it matches the app), volume and `can`. cspot patch 0004
adds read getters for the playback state and context.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
No Spotify session (or paused, with failover_on_pause) for failover_delay_s
switches to HLS; Spotify playing switches back within ~1 s. Switches fade
out/in over 30 ms and flush the ring. HLS is suspended while Spotify plays.
cspot is held back instead of drained while it isn't Spotify's turn: it keeps
decoding on pause, so dropping its frames let it race through the queue.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Mac dropped the device soon after the first track change: we never
called SpircHandler::notifyAudioReachedPlayback(), so cspot's queue did
not advance and the state sent to Spotify stalled.
- The data callback records a boundary (output write position, track
id) when the track id changes; the session loop (<= 200 ms) calls
notifyAudioReachedPlayback(id) once playback (ring read position)
passes it, and notifyAudioEnded() after DEPLETED once the buffer is
empty. PLAYBACK_START clears boundaries (next data is a new one),
seek/flush drop pending ones.
- audio_ring exposes its write/read frame counters (wrap-safe compare).
- Verified: 10 min on the Mac without a disconnect, every track change
notified ("track audible, Spotify notified"), app shows the playing
track (switches up to ~3-5 s early), 0 underruns.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- OTA: the player now ends the Spotify session (spotify_suspend: stop
flag, waits until the session's tasks are gone, refuses new ones)
instead of pausing it, and suspends HLS. Pausing was not enough (an
upload still failed once with a paused session). Verified twice with a
session running for minutes: "Disconnecting mercury session / session
ended / suspended", installed in ~26 s, clean reboot.
- Volume: createFromBlob() starts cspot at volume 0, which the app
showed while we played at 100 %. The session now starts with the
player's volume (spotify_set_volume); volumes coming from the app are
stored exactly, without echo. Verified: slider starts at 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- spotify_init() sets up the logger, zeroconf routes and session task
once; spotify_apply() (at boot and on every source save) enables or
disables: enabled = mode spotify/auto + credentials. Disable removes
the mDNS entry, zeroconf answers 404 and a running session ends
(loop exits within 200 ms, SpircHandler::disconnect stops the queue
and player tasks). A new device name ends the session and
re-advertises. The login blob is swapped under a mutex.
- Verified: hls/spotify/rename switch the mDNS entry and /spotify_info
(404/200) live; switching to hls during Spotify playback ended the
session in < 2 s, HLS played after ~5 s, internal heap 221 -> 365 KB
(cspot frees everything).
- CLAUDE.md: OTA-with-session findings (intermittent, flash-write stalls
seen as TX resyncs during uploads), serial-port reset caveat.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
An upload during an active Spotify session crawled (~10 kB/s, 197 s)
and ended in a reset (seen twice). Workaround:
- aes67_ota_on_update(cb): cb(true) right before an accepted upload
writes flash, cb(false) if it then fails.
- The player pauses Spotify (spotify_pause -> SpircHandler::setPause, the
app follows) and suspends HLS fetching (hls_suspend); resumed if the
upload fails. AES67 TX keeps running (silence).
- Verified: upload during Spotify playback paused the session and
installed in 25.8 s (normal for 2 MB), clean reboot and self-test.
Root cause still open (noted in CLAUDE.md with the other cspot items).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- spotify_init(pcm_cb, event_cb): cspot's data callback hands 44.1 kHz
stereo s16 PCM to the player and returns what was taken; the player's
blocking ring write paces decoding to playback speed.
- Events: FLUSH/SEEK/PLAYBACK_START empty the ring (skip/seek sound at
once); PLAY_PAUSE pauses output (silence, buffer kept, no underrun);
VOLUME logged (applied in b4).
- player: Spotify via its own audio_out converter (44.1 -> 48 kHz);
source_state playing / paused / buffering.
- Verified from a Mac: music on the AES67 stream (10 s: 0 gaps, no
silent packets, RMS -9.6 dBFS, peak 0.0 dBFS), buffer 4.0 s full,
0 underruns, pause/play/skip/seek events.
Seen: first 3 connects "Can't connect to spotify servers", 4th worked.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Zeroconf on our httpd (GET/POST /spotify_info, form body URL-decoded)
and _spotify-connect._tcp via our mDNS (VERSION, CPath, Stack TXT).
- Session task: waits for the app's login blob, connects with the
user's client ID/secret and the configured bitrate (96/160/320 ->
OGG_VORBIS_*), SpircHandler, events logged; cspot exceptions caught.
Starts when source.mode is spotify/auto and credentials are set.
- bell::bellGlobalLogger was NULL: every CSPOT_LOG crashed the board
right after addUser (Load access fault in Session.cpp:67 /
LoginBlob.cpp:58). cspot/bell logs now go to esp_log (UART + syslog);
signed CDN URL tokens are cut from the log.
- esp_audio_codec's own Vorbis decoder clashed with bell's Tremor
symbols: CONFIG_AUDIO_DECODER_VORBIS_SUPPORT / SIMPLE_DEC_OGG off.
- status.spotify_state from the session (waiting / connecting /
connected / login failed / error / disabled / no client credentials).
- Verified from a Mac: device appears, "connected as <user>", access
token fetched with the user's client credentials, track info, audio
key, CDN URL (the step broken upstream), PCM decoded. Without
backpressure a track decodes in ~26 s (b3 feeds the ring).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bsncubed