bsncubed
c6ecbbeb25
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>
51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
// Spotify Connect (cspot). Project code; GPL-3.0 through cspot.
|
|
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "esp_err.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef enum {
|
|
SPOTIFY_EV_PLAY, // playback (re)started or resumed
|
|
SPOTIFY_EV_PAUSE,
|
|
SPOTIFY_EV_FLUSH, // skip, seek, new track: drop buffered audio
|
|
SPOTIFY_EV_VOLUME, // value: 0..65535
|
|
} spotify_event_t;
|
|
|
|
// PCM from Spotify: 44.1 kHz stereo s16 interleaved. Return the frames taken (may block).
|
|
typedef size_t (*spotify_pcm_cb_t)(const int16_t *pcm, size_t frames);
|
|
typedef void (*spotify_event_cb_t)(spotify_event_t ev, int value);
|
|
// Output positions in frames (monotonic, wrap at 2^32): written into the output buffer so far, and
|
|
// played out so far. Used to tell Spotify when a new track actually becomes audible.
|
|
typedef uint32_t (*spotify_pos_cb_t)(void);
|
|
|
|
// Registers the zeroconf endpoints (/spotify_info), starts the session task and applies the config.
|
|
esp_err_t spotify_init(spotify_pcm_cb_t pcm, spotify_event_cb_t event, spotify_pos_cb_t written,
|
|
spotify_pos_cb_t played);
|
|
// Re-read the "source" config: enabled (advertised, sessions accepted) when mode is spotify/auto and
|
|
// the client credentials are set; otherwise not advertised and a running session is ended.
|
|
// A new device name ends the session and re-advertises.
|
|
void spotify_apply(void);
|
|
// Pause/resume the running session (the Spotify app follows). No-op without a session.
|
|
void spotify_pause(bool pause);
|
|
// Suspend: end any running session (waits until its tasks are gone, max ~3 s) and refuse new ones.
|
|
// Resume: back to what the config says. Used around firmware uploads.
|
|
void spotify_suspend(bool suspend);
|
|
// The player's volume (0..100 %): reported to the Spotify app when a session starts (else the app
|
|
// shows 0 while we play at the player's level), and pushed to a running session.
|
|
void spotify_set_volume(int pct);
|
|
// A session is running (an app is connected to this device).
|
|
bool spotify_session_active(void);
|
|
// Current state for status.spotify_state.
|
|
const char *spotify_state(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|