ao_coreaudio: switch properties getters to talloc

audio/out/ao_coreaudio.c

@@ -215,16 +215,16 @@ static void print_help(void)
         char *name;
         OSStatus err = CA_GET_STR(devs[i], kAudioObjectPropertyName, &name);
 
-        if (err == noErr) {
-            help = talloc_asprintf_append(help,
-                    "%s (id: %" PRIu32 ")\n", name, devs[i]);
-            free(name);
-        } else
-            help = talloc_asprintf_append(help,
-                    "Unknown (id: %" PRIu32 ")\n", devs[i]);
+        if (err == noErr)
+            talloc_steal(devs, name);
+        else
+            name = "Unknown";
+
+        help = talloc_asprintf_append(
+                help, "%s (id: %" PRIu32 ")\n", name, devs[i]);
     }
 
-    free(devs);
+    talloc_free(devs);
 
 coreaudio_error:
     ca_msg(MSGL_FATAL, "%s", help);
@@ -294,7 +294,7 @@ static int init(struct ao *ao, char *params)
            "selected audio output device: %s (%" PRIu32 ")\n",
            device_name, selected_device);
 
-    free(device_name);
+    talloc_free(device_name);
 
     // Save selected device id
     p->device = selected_device;
@@ -318,7 +318,7 @@ static int init(struct ao *ao, char *params)
         size_t   n_bitmaps;
 
         ca_bitmaps_from_layouts(layouts, n_layouts, &bitmaps, &n_bitmaps);
-        free(layouts);
+        talloc_free(layouts);
 
         struct mp_chmap_sel chmap_sel = {0};
 
@@ -535,11 +535,11 @@ static int init_digital(struct ao *ao, AudioStreamBasicDescription asbd)
             else
                 d->stream_asbd = formats[max_rate_format].mFormat;
 
-            free(formats);
+            talloc_free(formats);
         }
     }
 
-    free(streams);
+    talloc_free(streams);
 
     if (d->stream_idx < 0) {
         ca_msg(MSGL_WARN, "can't find any digital output stream format\n");

audio/out/ao_coreaudio_properties.c

@@ -21,6 +21,7 @@
 
 #include "audio/out/ao_coreaudio_properties.h"
 #include "audio/out/ao_coreaudio_utils.h"
+#include "talloc.h"
 
 OSStatus ca_get(AudioObjectID id, ca_scope scope, ca_sel selector,
                 uint32_t size, void *data)
@@ -61,7 +62,7 @@ OSStatus ca_get_ary(AudioObjectID id, ca_scope scope, ca_sel selector,
     err = AudioObjectGetPropertyDataSize(id, &p_addr, 0, NULL, &p_size);
     CHECK_CA_ERROR("can't fetch property size");
 
-    *data = malloc(p_size);
+    *data = talloc_size(NULL, p_size);
     *elements = p_size / element_size;
 
     err = ca_get(id, scope, selector, p_size, *data);
@@ -86,7 +87,7 @@ OSStatus ca_get_str(AudioObjectID id, ca_scope scope, ca_sel selector,
         CFStringGetMaximumSizeForEncoding(
             CFStringGetLength(string), CA_CFSTR_ENCODING) + 1;
 
-    *data = malloc(size);
+    *data = talloc_size(NULL, size);
     CFStringGetCString(string, *data, size, CA_CFSTR_ENCODING);
     CFRelease(string);
 coreaudio_error:

audio/out/ao_coreaudio_utils.c

@@ -116,12 +116,12 @@ bool ca_stream_supports_digital(AudioStreamID stream)
         AudioStreamBasicDescription asbd = formats[i].mFormat;
         ca_print_asbd("supported format:", &(asbd));
         if (ca_format_is_digital(asbd)) {
-            free(formats);
+            talloc_free(formats);
             return true;
         }
     }
 
-    free(formats);
+    talloc_free(formats);
 coreaudio_error:
     return false;
 }
@@ -139,12 +139,12 @@ bool ca_device_supports_digital(AudioDeviceID device)
 
     for (int i = 0; i < n_streams; i++) {
         if (ca_stream_supports_digital(streams[i])) {
-            free(streams);
+            talloc_free(streams);
             return true;
         }
     }
 
-    free(streams);
+    talloc_free(streams);
 
 coreaudio_error:
     return false;