4 files changed, 6 insertions, 51 deletions

diff --git a/audio/out/ao_wasapi.c b/audio/out/ao_wasapi.c
index 83e7f469df..2edbdf5ef0 100644
--- a/audio/out/ao_wasapi.c
+++ b/audio/out/ao_wasapi.c
@@ -237,8 +237,6 @@ static void uninit(struct ao *ao)
         MP_ERR(ao, "Audio loop thread refuses to abort\n");
         return;
     }
-    if (state->VistaBlob.hAvrt)
-        FreeLibrary(state->VistaBlob.hAvrt);
 
     SAFE_RELEASE(state->hInitDone,   CloseHandle(state->hInitDone));
     SAFE_RELEASE(state->hWake,       CloseHandle(state->hWake));
@@ -255,8 +253,6 @@ static int init(struct ao *ao)
 
     struct wasapi_state *state = ao->priv;
     state->log = ao->log;
-    if(!wasapi_fill_VistaBlob(state))
-        MP_WARN(ao, "Error loading thread priority functions\n");
 
     state->hInitDone = CreateEventW(NULL, FALSE, FALSE, NULL);
     state->hWake     = CreateEventW(NULL, FALSE, FALSE, NULL);
diff --git a/audio/out/ao_wasapi.h b/audio/out/ao_wasapi.h
index 24b9b862ed..2fbd2d5a9c 100755
--- a/audio/out/ao_wasapi.h
+++ b/audio/out/ao_wasapi.h
@@ -79,7 +79,6 @@ typedef struct wasapi_state {
 
     /* for setting the audio thread priority */
     HANDLE hTask; /* AV thread */
-    DWORD taskIndex; /* AV task ID */
 
     /* WASAPI proxy handles, for Single-Threaded Apartment communication.
        One is needed for each audio thread object that's accessed from the main thread. */
@@ -110,16 +109,6 @@ typedef struct wasapi_state {
     size_t buffer_block_size; /* Size of each block in bytes */
     UINT32 bufferFrameCount; /* wasapi buffer block size, number of frames, frame size at format.nBlockAlign */
 
-    /* Don't use these functions directly in case
-       they are unimplemented for some reason.
-       (XP shouldn't be an issue since it doesn't support wasapi, maybe wine?)
-       Blob is owned by the main thread */
-    struct {
-        HMODULE hAvrt;
-        HANDLE (WINAPI *pAvSetMmThreadCharacteristicsW)(LPCWSTR, LPDWORD);
-        WINBOOL (WINAPI *pAvRevertMmThreadCharacteristics)(HANDLE);
-    } VistaBlob;
-
     change_notify change;
 } wasapi_state;
 
diff --git a/audio/out/ao_wasapi_utils.c b/audio/out/ao_wasapi_utils.c
index 108db17d32..be81f0e730 100755
--- a/audio/out/ao_wasapi_utils.c
+++ b/audio/out/ao_wasapi_utils.c
@@ -185,36 +185,6 @@ char *mp_HRESULT_to_str_buf(char *buf, size_t buf_size, HRESULT hr)
              wasapi_explain_err(hr), (uint32_t) hr);
     return buf;
 }
-
-bool wasapi_fill_VistaBlob(wasapi_state *state)
-{
-    if (!state)
-        goto exit_label;
-    state->VistaBlob.hAvrt = LoadLibraryW(L"avrt.dll");
-    if (!state->VistaBlob.hAvrt)
-        goto exit_label;
-
-    state->VistaBlob.pAvSetMmThreadCharacteristicsW =
-        (HANDLE (WINAPI *)(LPCWSTR, LPDWORD))
-        GetProcAddress(state->VistaBlob.hAvrt, "AvSetMmThreadCharacteristicsW");
-    if (!state->VistaBlob.pAvSetMmThreadCharacteristicsW)
-        goto exit_label;
-
-    state->VistaBlob.pAvRevertMmThreadCharacteristics =
-        (WINBOOL (WINAPI *)(HANDLE))
-        GetProcAddress(state->VistaBlob.hAvrt, "AvRevertMmThreadCharacteristics");
-    if (!state->VistaBlob.pAvRevertMmThreadCharacteristics)
-        goto exit_label;
-
-    return true;
-exit_label:
-    if (state->VistaBlob.hAvrt) {
-        FreeLibrary(state->VistaBlob.hAvrt);
-        state->VistaBlob.hAvrt = NULL;
-    }
-    return false;
-}
-
 static void update_waveformat_datarate(WAVEFORMATEXTENSIBLE *wformat)
 {
     WAVEFORMATEX *wf = &wformat->Format;
@@ -738,9 +708,10 @@ reinit:
     hr = init_session_display(state);
     EXIT_ON_ERROR(hr);
 
-    if (state->VistaBlob.hAvrt) {
-        state->hTask =
-            state->VistaBlob.pAvSetMmThreadCharacteristicsW(L"Pro Audio", &state->taskIndex);
+    state->hTask = AvSetMmThreadCharacteristics(L"Pro Audio", &(DWORD){0});
+    if (!state->hTask) {
+        MP_WARN(state, "Failed to set AV thread to Pro Audio: %s\n",
+                mp_LastError_to_str());
     }
 
     MP_VERBOSE(state, "Format fixed. Using %lld byte buffer block size\n",
@@ -1194,8 +1165,6 @@ void wasapi_thread_uninit(struct ao *ao)
     SAFE_RELEASE(state->pAudioClient,    IAudioClient_Release(state->pAudioClient));
     SAFE_RELEASE(state->pDevice,         IMMDevice_Release(state->pDevice));
     SAFE_RELEASE(state->pEnumerator,     IMMDeviceEnumerator_Release(state->pEnumerator));
-
-    if (state->hTask)
-        state->VistaBlob.pAvRevertMmThreadCharacteristics(state->hTask);
+    SAFE_RELEASE(state->hTask,           AvRevertMmThreadCharacteristics(state->hTask));
     MP_DBG(ao, "Thread uninit done\n");
 }
diff --git a/audio/out/ao_wasapi_utils.h b/audio/out/ao_wasapi_utils.h
index 5ac2d3efba..deaffd77e4 100755
--- a/audio/out/ao_wasapi_utils.h
+++ b/audio/out/ao_wasapi_utils.h
@@ -33,6 +33,7 @@ char *mp_HRESULT_to_str_buf(char *buf, size_t buf_size, HRESULT hr);
 #define mp_GUID_to_str(guid) mp_GUID_to_str_buf((char[40]){0}, 40, (guid))
 #define mp_PKEY_to_str(pkey) mp_PKEY_to_str_buf((char[42]){0}, 42, (pkey))
 #define mp_HRESULT_to_str(hr) mp_HRESULT_to_str_buf((char[60]){0}, 60, (hr))
+#define mp_LastError_to_str() mp_HRESULT_to_str(HRESULT_FROM_WIN32(GetLastError()))
 
 bool wasapi_fill_VistaBlob(wasapi_state *state);