command: add property returning detected audio device

This can be useful to adjust some other audio related properties
at runtime depending on the audio device being used.

4 files changed, 11 insertions, 0 deletions

diff --git a/audio/out/ao.c b/audio/out/ao.c
index f77ae4c24a..dbdcf272cb 100644
--- a/audio/out/ao.c
+++ b/audio/out/ao.c
@@ -440,6 +440,11 @@ bool ao_untimed(struct ao *ao)
     return ao->untimed;
 }
 
+const char *ao_get_detected_device(struct ao *ao)
+{
+    return ao->detected_device;
+}
+
 struct ao_device_list *ao_get_device_list(struct mpv_global *global)
 {
     struct ao_device_list *list = talloc_zero(NULL, struct ao_device_list);
diff --git a/audio/out/ao.h b/audio/out/ao.h
index f1c922ae69..dbbed24873 100644
--- a/audio/out/ao.h
+++ b/audio/out/ao.h
@@ -79,6 +79,7 @@ void ao_uninit(struct ao *ao);
 void ao_get_format(struct ao *ao, struct mp_audio *format);
 const char *ao_get_name(struct ao *ao);
 const char *ao_get_description(struct ao *ao);
+const char *ao_get_detected_device(struct ao *ao);
 bool ao_untimed(struct ao *ao);
 int ao_play(struct ao *ao, void **data, int samples, int flags);
 int ao_control(struct ao *ao, enum aocontrol cmd, void *arg);
diff --git a/audio/out/ao_coreaudio.c b/audio/out/ao_coreaudio.c
index 0c7f769e72..590549bd1a 100644
--- a/audio/out/ao_coreaudio.c
+++ b/audio/out/ao_coreaudio.c
@@ -156,6 +156,8 @@ static int init(struct ao *ao)
     OSStatus err = ca_select_device(ao, ao->device, &p->device);
     CHECK_CA_ERROR("failed to select device");
 
+    ao->detected_device = talloc_asprintf(ao, "%d", p->device);
+
     if (!init_chmap(ao))
         goto coreaudio_error;
 
diff --git a/audio/out/internal.h b/audio/out/internal.h
index 4d18adef78..9414208923 100644
--- a/audio/out/internal.h
+++ b/audio/out/internal.h
@@ -50,6 +50,9 @@ struct ao {
     // default device should be used, this is set to NULL.
     char *device;
 
+    // Device actually chosen by the AO
+    char *detected_device;
+
     // Application name to report to the audio API.
     char *client_name;