From d40c0d4f9006b4195a5509ae182e377ae88d16f6 Mon Sep 17 00:00:00 2001
From: Kevin Mitchell <kevmitch@gmail.com>
Date: Thu, 27 Nov 2014 18:44:06 -0800
Subject: ao/wasapi: fix unmatched CoUninitialize() on init failure

---
 audio/out/ao_wasapi.c       | 5 +++++
 audio/out/ao_wasapi_utils.c | 8 --------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/audio/out/ao_wasapi.c b/audio/out/ao_wasapi.c
index 8477a9cb51..30767549fd 100644
--- a/audio/out/ao_wasapi.c
+++ b/audio/out/ao_wasapi.c
@@ -195,12 +195,15 @@ static void uninit(struct ao *ao)
     if (state->VistaBlob.hAvrt)
         FreeLibrary(state->VistaBlob.hAvrt);
     closehandles(ao);
+    CoUninitialize();
     MP_DBG(ao, "Uninit wasapi done\n");
 }
 
 static int init(struct ao *ao)
 {
     MP_DBG(ao, "Init wasapi\n");
+    CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
+
     ao->format = af_fmt_from_planar(ao->format);
     struct mp_chmap_sel sel = {0};
     mp_chmap_sel_add_waveext(&sel);
@@ -356,7 +359,9 @@ static void audio_resume(struct ao *ao)
 
 static void list_devs(struct ao *ao, struct ao_device_list *list)
 {
+    CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
     wasapi_enumerate_devices(mp_null_log, ao, list);
+    CoUninitialize();
 }
 
 #define OPT_BASE_STRUCT struct wasapi_state
diff --git a/audio/out/ao_wasapi_utils.c b/audio/out/ao_wasapi_utils.c
index 71b8b20e1f..40829c6f9e 100755
--- a/audio/out/ao_wasapi_utils.c
+++ b/audio/out/ao_wasapi_utils.c
@@ -733,20 +733,16 @@ int wasapi_enumerate_devices(struct mp_log *log, struct ao *ao,
                              struct ao_device_list *list)
 {
     HRESULT hr;
-    CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
-
     hr = enumerate_with_state(log, ao, list, "Active devices:",
                               DEVICE_STATE_ACTIVE, 1);
     EXIT_ON_ERROR(hr);
     hr = enumerate_with_state(log, ao, list, "Unplugged devices:",
                               DEVICE_STATE_UNPLUGGED, 0);
     EXIT_ON_ERROR(hr);
-    CoUninitialize();
     return 0;
 exit_label:
     mp_err(log, "Error enumerating devices: %s (0x%"PRIx32")\n",
            wasapi_explain_err(hr), (uint32_t)hr);
-    CoUninitialize();
     return 1;
 }
 
@@ -904,8 +900,6 @@ int wasapi_validate_device(struct mp_log *log, const m_option_t *opt,
 HRESULT wasapi_setup_proxies(struct wasapi_state *state) {
     HRESULT hr;
 
-    CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
-
 #define UNMARSHAL(type, to, from) do {                                    \
     hr = CoGetInterfaceAndReleaseStream((from), &(type), (void**) &(to)); \
     (from) = NULL;                                                        \
@@ -931,8 +925,6 @@ void wasapi_release_proxies(wasapi_state *state) {
     SAFE_RELEASE(state->pAudioVolumeProxy,    IUnknown_Release(state->pAudioVolumeProxy));
     SAFE_RELEASE(state->pEndpointVolumeProxy, IUnknown_Release(state->pEndpointVolumeProxy));
     SAFE_RELEASE(state->pSessionControlProxy, IUnknown_Release(state->pSessionControlProxy));
-
-    CoUninitialize();
 }
 
 static HRESULT create_proxies(struct wasapi_state *state) {
-- 
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