171 lines
3.7 KiB
C
171 lines
3.7 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* FreeRDP Windows Server (Audio Output)
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*
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* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2013 Corey Clayton <can.of.tuna@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <winpr/windows.h>
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#include "wf_rdpsnd.h"
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#include "wf_info.h"
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#ifdef WITH_RDPSND_DSOUND
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#include "wf_directsound.h"
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#else
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#include "wf_wasapi.h"
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#endif
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static const AUDIO_FORMAT supported_audio_formats[] =
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{
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{ WAVE_FORMAT_PCM, 2, 44100, 176400, 4, 16, 0, NULL },
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{ WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, 0, NULL }
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};
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static void wf_peer_rdpsnd_activated(RdpsndServerContext* context)
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{
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wfInfo* wfi;
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int i, j;
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wfi = wf_info_get_instance();
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wfi->agreed_format = NULL;
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DEBUG_WARN("Client supports the following %d formats: \n", context->num_client_formats);
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for(i = 0; i < context->num_client_formats; i++)
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{
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//TODO: improve the way we agree on a format
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for (j = 0; j < context->num_server_formats; j++)
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{
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if ((context->client_formats[i].wFormatTag == context->server_formats[j].wFormatTag) &&
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(context->client_formats[i].nChannels == context->server_formats[j].nChannels) &&
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(context->client_formats[i].nSamplesPerSec == context->server_formats[j].nSamplesPerSec))
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{
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DEBUG_WARN("agreed on format!\n");
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wfi->agreed_format = (AUDIO_FORMAT*) &context->server_formats[j];
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break;
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}
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}
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if (wfi->agreed_format != NULL)
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break;
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}
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if (wfi->agreed_format == NULL)
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{
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DEBUG_WARN("Could not agree on a audio format with the server\n");
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return;
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}
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context->SelectFormat(context, i);
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context->SetVolume(context, 0x7FFF, 0x7FFF);
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#ifdef WITH_RDPSND_DSOUND
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wf_directsound_activate(context);
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#else
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wf_wasapi_activate(context);
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#endif
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}
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int wf_rdpsnd_lock()
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{
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DWORD dRes;
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wfInfo* wfi;
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wfi = wf_info_get_instance();
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dRes = WaitForSingleObject(wfi->snd_mutex, INFINITE);
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switch (dRes)
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{
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case WAIT_ABANDONED:
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case WAIT_OBJECT_0:
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return TRUE;
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break;
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case WAIT_TIMEOUT:
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return FALSE;
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break;
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case WAIT_FAILED:
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DEBUG_WARN("wf_rdpsnd_lock failed with 0x%08X\n", GetLastError());
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return -1;
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break;
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}
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return -1;
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}
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int wf_rdpsnd_unlock()
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{
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wfInfo* wfi;
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wfi = wf_info_get_instance();
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if (ReleaseMutex(wfi->snd_mutex) == 0)
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{
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DEBUG_WARN("wf_rdpsnd_unlock failed with 0x%08X\n", GetLastError());
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return -1;
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}
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return TRUE;
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}
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BOOL wf_peer_rdpsnd_init(wfPeerContext* context)
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{
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wfInfo* wfi;
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wfi = wf_info_get_instance();
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wfi->snd_mutex = CreateMutex(NULL, FALSE, NULL);
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context->rdpsnd = rdpsnd_server_context_new(context->vcm);
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context->rdpsnd->data = context;
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context->rdpsnd->server_formats = supported_audio_formats;
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context->rdpsnd->num_server_formats =
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sizeof(supported_audio_formats) / sizeof(supported_audio_formats[0]);
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context->rdpsnd->src_format.wFormatTag = 1;
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context->rdpsnd->src_format.nChannels = 2;
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context->rdpsnd->src_format.nSamplesPerSec = 44100;
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context->rdpsnd->src_format.wBitsPerSample = 16;
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context->rdpsnd->Activated = wf_peer_rdpsnd_activated;
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context->rdpsnd->Initialize(context->rdpsnd, TRUE);
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wf_rdpsnd_set_latest_peer(context);
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wfi->snd_stop = FALSE;
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return TRUE;
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}
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