improved visualization API; improved scope

1 files changed, 7 insertions, 0 deletions

diff --git a/deadbeef.h b/deadbeef.h
index 5dc12615..1ea892ab 100644
--- a/deadbeef.h
+++ b/deadbeef.h
@@ -824,8 +824,15 @@ typedef struct {
     // returns data size in bytes
     // fmt and data will be filled with last bytes that came to the output plugin
     // data size must be float[DDB_AUDIO_MEMORY_FRAMES]
+    // type is one of DDB_AUDIO_WAVEFORM and DDB_AUDIO_FREQ
     void (*audio_get_waveform_data) (int type, float *data);
 
+    // register/unregister for getting continuous wave data
+    // mainly for visualization
+    // ctx must be unique
+    void (*register_continuous_wavedata_listener) (void *ctx, void (*callback)(void *ctx, ddb_waveformat_t *fmt, const float *data, int nsamples));
+    void (*unregister_continuous_wavedata_listener) (void *ctx);
+
     // this is useful to mute/unmute audio, and query the muted status, from
     // plugins, without touching the volume control
     void (*audio_set_mute) (int mute);