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Removed rdpsnd client thread 

The thread used to process audio data is not really required
and just produces overhead.
This commit is contained in:
Armin Novak 2019-12-05 11:37:07 +01:00
parent d0753f91f2
commit 6e6dfc3e2a
1 changed files with 9 additions and 124 deletions
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133
channels/rdpsnd/client/rdpsnd_main.c
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@ -55,7 +55,6 @@ struct rdpsnd_plugin
CHANNEL_DEF channelDef;
CHANNEL_ENTRY_POINTS_FREERDP_EX channelEntryPoints;
HANDLE thread;
wStreamPool* pool;
wStream* data_in;
@ -63,7 +62,6 @@ struct rdpsnd_plugin
DWORD OpenHandle;
wLog* log;
HANDLE stopEvent;
BYTE cBlockNo;
UINT16 wQualityMode;
@ -95,7 +93,6 @@ struct rdpsnd_plugin
rdpsndDevicePlugin* device;
rdpContext* rdpcontext;
wQueue* queue;
FREERDP_DSP_CONTEXT* dsp_context;
};
@ -653,8 +650,7 @@ static UINT rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name, AD
PFREERDP_RDPSND_DEVICE_ENTRY entry;
FREERDP_RDPSND_DEVICE_ENTRY_POINTS entryPoints;
UINT error;
entry = (PFREERDP_RDPSND_DEVICE_ENTRY)freerdp_load_channel_addin_entry("rdpsnd", (LPSTR)name,
NULL, 0);
entry = (PFREERDP_RDPSND_DEVICE_ENTRY)freerdp_load_channel_addin_entry("rdpsnd", name, NULL, 0);
if (!entry)
return ERROR_INTERNAL_ERROR;
@ -890,11 +886,6 @@ static UINT rdpsnd_process_connect(rdpsndPlugin* rdpsnd)
return CHANNEL_RC_OK;
}
static void rdpsnd_process_disconnect(rdpsndPlugin* rdpsnd)
{
IFCALL(rdpsnd->device->Close, rdpsnd->device);
}
/**
* Function description
*
@ -948,14 +939,14 @@ static UINT rdpsnd_virtual_channel_event_data_received(rdpsndPlugin* plugin, voi
if (dataFlags & CHANNEL_FLAG_LAST)
{
UINT error;
Stream_SealLength(plugin->data_in);
Stream_SetPosition(plugin->data_in, 0);
if (!Queue_Enqueue(plugin->queue, plugin->data_in))
{
WLog_ERR(TAG, "Queue_Enqueue failed!");
return ERROR_INTERNAL_ERROR;
}
error = rdpsnd_recv_pdu(plugin, plugin->data_in);
if (error)
return error;
plugin->data_in = NULL;
}
@ -1005,78 +996,6 @@ static VOID VCAPITYPE rdpsnd_virtual_channel_open_event_ex(LPVOID lpUserParam, D
"rdpsnd_virtual_channel_open_event_ex reported an error");
}
static DWORD WINAPI rdpsnd_virtual_channel_client_thread(LPVOID arg)
{
BOOL running = TRUE;
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)arg;
DWORD error = CHANNEL_RC_OK;
HANDLE events[2];
if ((error = rdpsnd_process_connect(rdpsnd)))
{
WLog_ERR(TAG, "error connecting sound channel");
goto out;
}
events[1] = rdpsnd->stopEvent;
events[0] = Queue_Event(rdpsnd->queue);
do
{
const DWORD status = WaitForMultipleObjects(ARRAYSIZE(events), events, FALSE, INFINITE);
switch (status)
{
case WAIT_OBJECT_0:
{
wStream* s = Queue_Dequeue(rdpsnd->queue);
error = rdpsnd_recv_pdu(rdpsnd, s);
}
break;
case WAIT_OBJECT_0 + 1:
running = FALSE;
break;
default:
error = status;
break;
}
} while ((error == CHANNEL_RC_OK) && running);
out:
if (error && rdpsnd->rdpcontext)
setChannelError(rdpsnd->rdpcontext, error,
"rdpsnd_virtual_channel_client_thread reported an error");
rdpsnd_process_disconnect(rdpsnd);
ExitThread((DWORD)error);
return error;
}
/* Called during cleanup.
* All streams still in the queue have been removed
* from the streampool and nead cleanup. */
static void rdpsnd_queue_free(void* data)
{
wStream* s = (wStream*)data;
Stream_Free(s, TRUE);
}
static UINT rdpsnd_virtual_channel_event_initialized(rdpsndPlugin* rdpsnd, LPVOID pData,
UINT32 dataLength)
{
rdpsnd->stopEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
if (!rdpsnd->stopEvent)
goto fail;
return CHANNEL_RC_OK;
fail:
return ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
@ -1102,35 +1021,15 @@ static UINT rdpsnd_virtual_channel_event_connected(rdpsndPlugin* rdpsnd, LPVOID
if (!rdpsnd->dsp_context)
goto fail;
rdpsnd->queue = Queue_New(TRUE, 32, 2);
if (!rdpsnd->queue)
goto fail;
rdpsnd->queue->object.fnObjectFree = rdpsnd_queue_free;
rdpsnd->pool = StreamPool_New(TRUE, 4096);
if (!rdpsnd->pool)
goto fail;
ResetEvent(rdpsnd->stopEvent);
rdpsnd->thread =
CreateThread(NULL, 0, rdpsnd_virtual_channel_client_thread, (void*)rdpsnd, 0, NULL);
if (!rdpsnd->thread)
goto fail;
return CHANNEL_RC_OK;
return rdpsnd_process_connect(rdpsnd);
fail:
freerdp_dsp_context_free(rdpsnd->dsp_context);
StreamPool_Free(rdpsnd->pool);
Queue_Free(rdpsnd->queue);
if (rdpsnd->stopEvent)
CloseHandle(rdpsnd->stopEvent);
if (rdpsnd->thread)
CloseHandle(rdpsnd->thread);
return CHANNEL_RC_NO_MEMORY;
}
@ -1147,16 +1046,8 @@ static UINT rdpsnd_virtual_channel_event_disconnected(rdpsndPlugin* rdpsnd)
if (rdpsnd->OpenHandle == 0)
return CHANNEL_RC_OK;
SetEvent(rdpsnd->stopEvent);
IFCALL(rdpsnd->device->Close, rdpsnd->device);
if (WaitForSingleObject(rdpsnd->thread, INFINITE) == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "!", error);
return error;
}
CloseHandle(rdpsnd->thread);
error =
rdpsnd->channelEntryPoints.pVirtualChannelCloseEx(rdpsnd->InitHandle, rdpsnd->OpenHandle);
@ -1171,7 +1062,7 @@ static UINT rdpsnd_virtual_channel_event_disconnected(rdpsndPlugin* rdpsnd)
freerdp_dsp_context_free(rdpsnd->dsp_context);
StreamPool_Return(rdpsnd->pool, rdpsnd->data_in);
StreamPool_Free(rdpsnd->pool);
Queue_Free(rdpsnd->queue);
audio_formats_free(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
rdpsnd->NumberOfClientFormats = 0;
rdpsnd->ClientFormats = NULL;
@ -1195,7 +1086,6 @@ static void rdpsnd_virtual_channel_event_terminated(rdpsndPlugin* rdpsnd)
audio_formats_free(rdpsnd->fixed_format, 1);
free(rdpsnd->subsystem);
free(rdpsnd->device_name);
CloseHandle(rdpsnd->stopEvent);
rdpsnd->InitHandle = 0;
}
@ -1218,11 +1108,6 @@ static VOID VCAPITYPE rdpsnd_virtual_channel_init_event_ex(LPVOID lpUserParam, L
switch (event)
{
case CHANNEL_EVENT_INITIALIZED:
if ((error = rdpsnd_virtual_channel_event_initialized(plugin, pData, dataLength)))
WLog_ERR(TAG,
"rdpsnd_virtual_channel_event_initialized failed with error %" PRIu32 "!",
error);
break;
case CHANNEL_EVENT_CONNECTED: