Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/channels/tsmf/client/tsmf_audio.h

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+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * Video Redirection Virtual Channel - Audio Device Manager
+ *
+ * Copyright 2010-2011 Vic Lee
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FREERDP_CHANNEL_TSMF_CLIENT_AUDIO_H
+#define FREERDP_CHANNEL_TSMF_CLIENT_AUDIO_H
+
+#include "tsmf_types.h"
+
+typedef struct s_ITSMFAudioDevice ITSMFAudioDevice;
+
+struct s_ITSMFAudioDevice
+{
+	/* Open the audio device. */
+	WINPR_ATTR_NODISCARD BOOL (*Open)(ITSMFAudioDevice* audio, const char* device);
+	/* Set the audio data format. */
+	WINPR_ATTR_NODISCARD BOOL (*SetFormat)(ITSMFAudioDevice* audio, UINT32 sample_rate,
+	                                       UINT32 channels, UINT32 bits_per_sample);
+	/* Play audio data. */
+	WINPR_ATTR_NODISCARD BOOL (*Play)(ITSMFAudioDevice* audio, const BYTE* data, UINT32 data_size);
+	/* Get the latency of the last written sample, in 100ns */
+	WINPR_ATTR_NODISCARD UINT64 (*GetLatency)(ITSMFAudioDevice* audio);
+	/* Change the playback volume level */
+	WINPR_ATTR_NODISCARD BOOL (*ChangeVolume)(ITSMFAudioDevice* audio, UINT32 newVolume,
+	                                          UINT32 muted);
+	/* Flush queued audio data */
+	WINPR_ATTR_NODISCARD BOOL (*Flush)(ITSMFAudioDevice* audio);
+	/* Free the audio device */
+	void (*Free)(ITSMFAudioDevice* audio);
+};
+
+#define TSMF_AUDIO_DEVICE_EXPORT_FUNC_NAME "TSMFAudioDeviceEntry"
+typedef UINT(VCAPITYPE* TSMF_AUDIO_DEVICE_ENTRY)(ITSMFAudioDevice** dev);
+
+WINPR_ATTR_NODISCARD FREERDP_LOCAL ITSMFAudioDevice* tsmf_load_audio_device(const char* name,
+                                                                            const char* device);
+
+#endif /* FREERDP_CHANNEL_TSMF_CLIENT_AUDIO_H */