sys/wasapi/gstwasapiutil.c - imx-gst-plugins-bad - Git at Google

 /*
  * Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */

 #include "gstwasapiutil.h"

 #include <mmdeviceapi.h>

 /* These seem to be missing in the Windows SDK... */
 const CLSID CLSID_MMDeviceEnumerator = { 0xbcde0395, 0xe52f, 0x467c,
   {0x8e, 0x3d, 0xc4, 0x57, 0x92, 0x91, 0x69, 0x2e}
 };
 const IID IID_IMMDeviceEnumerator = { 0xa95664d2, 0x9614, 0x4f35,
   {0xa7, 0x46, 0xde, 0x8d, 0xb6, 0x36, 0x17, 0xe6}
 };
 const IID IID_IAudioClient = { 0x1cb9ad4c, 0xdbfa, 0x4c32,
   {0xb1, 0x78, 0xc2, 0xf5, 0x68, 0xa7, 0x03, 0xb2}
 };
 const IID IID_IAudioClock = { 0xcd63314f, 0x3fba, 0x4a1b,
   {0x81, 0x2c, 0xef, 0x96, 0x35, 0x87, 0x28, 0xe7}
 };
 const IID IID_IAudioCaptureClient = { 0xc8adbd64, 0xe71e, 0x48a0,
   {0xa4, 0xde, 0x18, 0x5c, 0x39, 0x5c, 0xd3, 0x17}
 };
 const IID IID_IAudioRenderClient = { 0xf294acfc, 0x3146, 0x4483,
   {0xa7, 0xbf, 0xad, 0xdc, 0xa7, 0xc2, 0x60, 0xe2}
 };

 const gchar *
 gst_wasapi_util_hresult_to_string (HRESULT hr)
 {
   const gchar *s = "AUDCLNT_E_UNKNOWN";

   switch (hr) {
     case AUDCLNT_E_NOT_INITIALIZED:
       s = "AUDCLNT_E_NOT_INITIALIZED";
       break;
     case AUDCLNT_E_ALREADY_INITIALIZED:
       s = "AUDCLNT_E_ALREADY_INITIALIZED";
       break;
     case AUDCLNT_E_WRONG_ENDPOINT_TYPE:
       s = "AUDCLNT_E_WRONG_ENDPOINT_TYPE";
       break;
     case AUDCLNT_E_DEVICE_INVALIDATED:
       s = "AUDCLNT_E_DEVICE_INVALIDATED";
       break;
     case AUDCLNT_E_NOT_STOPPED:
       s = "AUDCLNT_E_NOT_STOPPED";
       break;
     case AUDCLNT_E_BUFFER_TOO_LARGE:
       s = "AUDCLNT_E_BUFFER_TOO_LARGE";
       break;
     case AUDCLNT_E_OUT_OF_ORDER:
       s = "AUDCLNT_E_OUT_OF_ORDER";
       break;
     case AUDCLNT_E_UNSUPPORTED_FORMAT:
       s = "AUDCLNT_E_UNSUPPORTED_FORMAT";
       break;
     case AUDCLNT_E_INVALID_SIZE:
       s = "AUDCLNT_E_INVALID_SIZE";
       break;
     case AUDCLNT_E_DEVICE_IN_USE:
       s = "AUDCLNT_E_DEVICE_IN_USE";
       break;
     case AUDCLNT_E_BUFFER_OPERATION_PENDING:
       s = "AUDCLNT_E_BUFFER_OPERATION_PENDING";
       break;
     case AUDCLNT_E_THREAD_NOT_REGISTERED:
       s = "AUDCLNT_E_THREAD_NOT_REGISTERED";
       break;
     case AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED:
       s = "AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED";
       break;
     case AUDCLNT_E_ENDPOINT_CREATE_FAILED:
       s = "AUDCLNT_E_ENDPOINT_CREATE_FAILED";
       break;
     case AUDCLNT_E_SERVICE_NOT_RUNNING:
       s = "AUDCLNT_E_SERVICE_NOT_RUNNING";
       break;
     case AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED:
       s = "AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED";
       break;
     case AUDCLNT_E_EXCLUSIVE_MODE_ONLY:
       s = "AUDCLNT_E_EXCLUSIVE_MODE_ONLY";
       break;
     case AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL:
       s = "AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL";
       break;
     case AUDCLNT_E_EVENTHANDLE_NOT_SET:
       s = "AUDCLNT_E_EVENTHANDLE_NOT_SET";
       break;
     case AUDCLNT_E_INCORRECT_BUFFER_SIZE:
       s = "AUDCLNT_E_INCORRECT_BUFFER_SIZE";
       break;
     case AUDCLNT_E_BUFFER_SIZE_ERROR:
       s = "AUDCLNT_E_BUFFER_SIZE_ERROR";
       break;
     case AUDCLNT_E_CPUUSAGE_EXCEEDED:
       s = "AUDCLNT_E_CPUUSAGE_EXCEEDED";
       break;
     case AUDCLNT_S_BUFFER_EMPTY:
       s = "AUDCLNT_S_BUFFER_EMPTY";
       break;
     case AUDCLNT_S_THREAD_ALREADY_REGISTERED:
       s = "AUDCLNT_S_THREAD_ALREADY_REGISTERED";
       break;
     case AUDCLNT_S_POSITION_STALLED:
       s = "AUDCLNT_S_POSITION_STALLED";
       break;
   }

   return s;
 }

 gboolean
 gst_wasapi_util_get_default_device_client (GstElement * element,
     gboolean capture,
     guint rate,
     GstClockTime buffer_time,
     GstClockTime period_time,
     DWORD flags, IAudioClient ** ret_client, GstClockTime * ret_latency)
 {
   gboolean res = FALSE;
   HRESULT hr;
   IMMDeviceEnumerator *enumerator = NULL;
   IMMDevice *device = NULL;
   IAudioClient *client = NULL;
   REFERENCE_TIME latency_rt, def_period, min_period;
   WAVEFORMATEXTENSIBLE format;

   hr = CoCreateInstance (&CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
       &IID_IMMDeviceEnumerator, &enumerator);
   if (hr != S_OK) {
     GST_ERROR_OBJECT (element, "CoCreateInstance (MMDeviceEnumerator) failed");
     goto beach;
   }

   hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint (enumerator,
       (capture) ? eCapture : eRender, eCommunications, &device);
   if (hr != S_OK) {
     GST_ERROR_OBJECT (element,
         "IMMDeviceEnumerator::GetDefaultAudioEndpoint () failed");
     goto beach;
   }

   hr = IMMDevice_Activate (device, &IID_IAudioClient, CLSCTX_ALL, NULL,
       &client);
   if (hr != S_OK) {
     GST_ERROR_OBJECT (element, "IMMDevice::Activate (IID_IAudioClient) failed");
     goto beach;
   }

   hr = IAudioClient_GetDevicePeriod (client, &def_period, &min_period);
   if (hr != S_OK) {
     GST_ERROR_OBJECT (element, "IAudioClient::GetDevicePeriod () failed");
     goto beach;
   }

   ZeroMemory (&format, sizeof (format));
   format.Format.cbSize = sizeof (format) - sizeof (format.Format);
   format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
   format.Format.nChannels = 2;
   format.Format.nSamplesPerSec = rate;
   format.Format.wBitsPerSample = 16;
   format.Format.nBlockAlign = format.Format.nChannels
       * (format.Format.wBitsPerSample / 8);
   format.Format.nAvgBytesPerSec = format.Format.nSamplesPerSec
       * format.Format.nBlockAlign;
   format.Samples.wValidBitsPerSample = 16;
   format.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
   format.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;

   hr = IAudioClient_Initialize (client, AUDCLNT_SHAREMODE_EXCLUSIVE,    /* or AUDCLNT_SHAREMODE_SHARED */
       flags, buffer_time / 100, /* buffer duration in 100s of ns */
       period_time / 100,        /* periodicity in 100s of ns */
       (WAVEFORMATEX *) & format, NULL);
   if (hr != S_OK) {
     GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ, (NULL),
         ("IAudioClient::Initialize () failed: %s",
             gst_wasapi_util_hresult_to_string (hr)));
     goto beach;
   }

   hr = IAudioClient_GetStreamLatency (client, &latency_rt);
   if (hr != S_OK) {
     GST_ERROR_OBJECT (element, "IAudioClient::GetStreamLatency () failed");
     goto beach;
   }

   GST_INFO_OBJECT (element, "default period: %d (%d ms), "
       "minimum period: %d (%d ms), "
       "latency: %d (%d ms)",
       (guint32) def_period, (guint32) def_period / 10000,
       (guint32) min_period, (guint32) min_period / 10000,
       (guint32) latency_rt, (guint32) latency_rt / 10000);

   IUnknown_AddRef (client);
   *ret_client = client;

   *ret_latency = latency_rt * 100;

   res = TRUE;

 beach:
   if (client != NULL)
     IUnknown_Release (client);

   if (device != NULL)
     IUnknown_Release (device);

   if (enumerator != NULL)
     IUnknown_Release (enumerator);

   return res;
 }

 #if 0
 static WAVEFORMATEXTENSIBLE *
 gst_wasapi_src_probe_device_format (GstWasapiSrc * self, IMMDevice * device)
 {
   HRESULT hr;
   IPropertyStore *props = NULL;
   PROPVARIANT format_prop;
   WAVEFORMATEXTENSIBLE *format = NULL;

   hr = IMMDevice_OpenPropertyStore (device, STGM_READ, &props);
   if (hr != S_OK)
     goto beach;

   PropVariantInit (&format_prop);
   hr = IPropertyStore_GetValue (props, &PKEY_AudioEngine_DeviceFormat,
       &format_prop);
   if (hr != S_OK)
     goto beach;

   format = (WAVEFORMATEXTENSIBLE *) format_prop.blob.pBlobData;

   /* hmm: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture\{64adb8b7-9716-4c02-8929-96e53f5642da}\Properties */

 beach:
   if (props != NULL)
     IUnknown_Release (props);

   return format;
 }
 #endif
	/*
	* Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public
	* License along with this library; if not, write to the
	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	* Boston, MA 02111-1307, USA.
	*/

	#include "gstwasapiutil.h"

	#include <mmdeviceapi.h>

	/* These seem to be missing in the Windows SDK... */
	const CLSID CLSID_MMDeviceEnumerator = { 0xbcde0395, 0xe52f, 0x467c,
	{0x8e, 0x3d, 0xc4, 0x57, 0x92, 0x91, 0x69, 0x2e}
	};
	const IID IID_IMMDeviceEnumerator = { 0xa95664d2, 0x9614, 0x4f35,
	{0xa7, 0x46, 0xde, 0x8d, 0xb6, 0x36, 0x17, 0xe6}
	};
	const IID IID_IAudioClient = { 0x1cb9ad4c, 0xdbfa, 0x4c32,
	{0xb1, 0x78, 0xc2, 0xf5, 0x68, 0xa7, 0x03, 0xb2}
	};
	const IID IID_IAudioClock = { 0xcd63314f, 0x3fba, 0x4a1b,
	{0x81, 0x2c, 0xef, 0x96, 0x35, 0x87, 0x28, 0xe7}
	};
	const IID IID_IAudioCaptureClient = { 0xc8adbd64, 0xe71e, 0x48a0,
	{0xa4, 0xde, 0x18, 0x5c, 0x39, 0x5c, 0xd3, 0x17}
	};
	const IID IID_IAudioRenderClient = { 0xf294acfc, 0x3146, 0x4483,
	{0xa7, 0xbf, 0xad, 0xdc, 0xa7, 0xc2, 0x60, 0xe2}
	};

	const gchar *
	gst_wasapi_util_hresult_to_string (HRESULT hr)
	{
	const gchar *s = "AUDCLNT_E_UNKNOWN";

	switch (hr) {
	case AUDCLNT_E_NOT_INITIALIZED:
	s = "AUDCLNT_E_NOT_INITIALIZED";
	break;
	case AUDCLNT_E_ALREADY_INITIALIZED:
	s = "AUDCLNT_E_ALREADY_INITIALIZED";
	break;
	case AUDCLNT_E_WRONG_ENDPOINT_TYPE:
	s = "AUDCLNT_E_WRONG_ENDPOINT_TYPE";
	break;
	case AUDCLNT_E_DEVICE_INVALIDATED:
	s = "AUDCLNT_E_DEVICE_INVALIDATED";
	break;
	case AUDCLNT_E_NOT_STOPPED:
	s = "AUDCLNT_E_NOT_STOPPED";
	break;
	case AUDCLNT_E_BUFFER_TOO_LARGE:
	s = "AUDCLNT_E_BUFFER_TOO_LARGE";
	break;
	case AUDCLNT_E_OUT_OF_ORDER:
	s = "AUDCLNT_E_OUT_OF_ORDER";
	break;
	case AUDCLNT_E_UNSUPPORTED_FORMAT:
	s = "AUDCLNT_E_UNSUPPORTED_FORMAT";
	break;
	case AUDCLNT_E_INVALID_SIZE:
	s = "AUDCLNT_E_INVALID_SIZE";
	break;
	case AUDCLNT_E_DEVICE_IN_USE:
	s = "AUDCLNT_E_DEVICE_IN_USE";
	break;
	case AUDCLNT_E_BUFFER_OPERATION_PENDING:
	s = "AUDCLNT_E_BUFFER_OPERATION_PENDING";
	break;
	case AUDCLNT_E_THREAD_NOT_REGISTERED:
	s = "AUDCLNT_E_THREAD_NOT_REGISTERED";
	break;
	case AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED:
	s = "AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED";
	break;
	case AUDCLNT_E_ENDPOINT_CREATE_FAILED:
	s = "AUDCLNT_E_ENDPOINT_CREATE_FAILED";
	break;
	case AUDCLNT_E_SERVICE_NOT_RUNNING:
	s = "AUDCLNT_E_SERVICE_NOT_RUNNING";
	break;
	case AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED:
	s = "AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED";
	break;
	case AUDCLNT_E_EXCLUSIVE_MODE_ONLY:
	s = "AUDCLNT_E_EXCLUSIVE_MODE_ONLY";
	break;
	case AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL:
	s = "AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL";
	break;
	case AUDCLNT_E_EVENTHANDLE_NOT_SET:
	s = "AUDCLNT_E_EVENTHANDLE_NOT_SET";
	break;
	case AUDCLNT_E_INCORRECT_BUFFER_SIZE:
	s = "AUDCLNT_E_INCORRECT_BUFFER_SIZE";
	break;
	case AUDCLNT_E_BUFFER_SIZE_ERROR:
	s = "AUDCLNT_E_BUFFER_SIZE_ERROR";
	break;
	case AUDCLNT_E_CPUUSAGE_EXCEEDED:
	s = "AUDCLNT_E_CPUUSAGE_EXCEEDED";
	break;
	case AUDCLNT_S_BUFFER_EMPTY:
	s = "AUDCLNT_S_BUFFER_EMPTY";
	break;
	case AUDCLNT_S_THREAD_ALREADY_REGISTERED:
	s = "AUDCLNT_S_THREAD_ALREADY_REGISTERED";
	break;
	case AUDCLNT_S_POSITION_STALLED:
	s = "AUDCLNT_S_POSITION_STALLED";
	break;
	}

	return s;
	}

	gboolean
	gst_wasapi_util_get_default_device_client (GstElement * element,
	gboolean capture,
	guint rate,
	GstClockTime buffer_time,
	GstClockTime period_time,
	DWORD flags, IAudioClient ** ret_client, GstClockTime * ret_latency)
	{
	gboolean res = FALSE;
	HRESULT hr;
	IMMDeviceEnumerator *enumerator = NULL;
	IMMDevice *device = NULL;
	IAudioClient *client = NULL;
	REFERENCE_TIME latency_rt, def_period, min_period;
	WAVEFORMATEXTENSIBLE format;

	hr = CoCreateInstance (&CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
	&IID_IMMDeviceEnumerator, &enumerator);
	if (hr != S_OK) {
	GST_ERROR_OBJECT (element, "CoCreateInstance (MMDeviceEnumerator) failed");
	goto beach;
	}

	hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint (enumerator,
	(capture) ? eCapture : eRender, eCommunications, &device);
	if (hr != S_OK) {
	GST_ERROR_OBJECT (element,
	"IMMDeviceEnumerator::GetDefaultAudioEndpoint () failed");
	goto beach;
	}

	hr = IMMDevice_Activate (device, &IID_IAudioClient, CLSCTX_ALL, NULL,
	&client);
	if (hr != S_OK) {
	GST_ERROR_OBJECT (element, "IMMDevice::Activate (IID_IAudioClient) failed");
	goto beach;
	}

	hr = IAudioClient_GetDevicePeriod (client, &def_period, &min_period);
	if (hr != S_OK) {
	GST_ERROR_OBJECT (element, "IAudioClient::GetDevicePeriod () failed");
	goto beach;
	}

	ZeroMemory (&format, sizeof (format));
	format.Format.cbSize = sizeof (format) - sizeof (format.Format);
	format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
	format.Format.nChannels = 2;
	format.Format.nSamplesPerSec = rate;
	format.Format.wBitsPerSample = 16;
	format.Format.nBlockAlign = format.Format.nChannels
	* (format.Format.wBitsPerSample / 8);
	format.Format.nAvgBytesPerSec = format.Format.nSamplesPerSec
	* format.Format.nBlockAlign;
	format.Samples.wValidBitsPerSample = 16;
	format.dwChannelMask = SPEAKER_FRONT_LEFT \| SPEAKER_FRONT_RIGHT;
	format.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;

	hr = IAudioClient_Initialize (client, AUDCLNT_SHAREMODE_EXCLUSIVE, /* or AUDCLNT_SHAREMODE_SHARED */
	flags, buffer_time / 100, /* buffer duration in 100s of ns */
	period_time / 100, /* periodicity in 100s of ns */
	(WAVEFORMATEX *) & format, NULL);
	if (hr != S_OK) {
	GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ, (NULL),
	("IAudioClient::Initialize () failed: %s",
	gst_wasapi_util_hresult_to_string (hr)));
	goto beach;
	}

	hr = IAudioClient_GetStreamLatency (client, &latency_rt);
	if (hr != S_OK) {
	GST_ERROR_OBJECT (element, "IAudioClient::GetStreamLatency () failed");
	goto beach;
	}

	GST_INFO_OBJECT (element, "default period: %d (%d ms), "
	"minimum period: %d (%d ms), "
	"latency: %d (%d ms)",
	(guint32) def_period, (guint32) def_period / 10000,
	(guint32) min_period, (guint32) min_period / 10000,
	(guint32) latency_rt, (guint32) latency_rt / 10000);

	IUnknown_AddRef (client);
	*ret_client = client;

	ret_latency = latency_rt 100;

	res = TRUE;

	beach:
	if (client != NULL)
	IUnknown_Release (client);

	if (device != NULL)
	IUnknown_Release (device);

	if (enumerator != NULL)
	IUnknown_Release (enumerator);

	return res;
	}

	#if 0
	static WAVEFORMATEXTENSIBLE *
	gst_wasapi_src_probe_device_format (GstWasapiSrc * self, IMMDevice * device)
	{
	HRESULT hr;
	IPropertyStore *props = NULL;
	PROPVARIANT format_prop;
	WAVEFORMATEXTENSIBLE *format = NULL;

	hr = IMMDevice_OpenPropertyStore (device, STGM_READ, &props);
	if (hr != S_OK)
	goto beach;

	PropVariantInit (&format_prop);
	hr = IPropertyStore_GetValue (props, &PKEY_AudioEngine_DeviceFormat,
	&format_prop);
	if (hr != S_OK)
	goto beach;

	format = (WAVEFORMATEXTENSIBLE *) format_prop.blob.pBlobData;

	/* hmm: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture\{64adb8b7-9716-4c02-8929-96e53f5642da}\Properties */

	beach:
	if (props != NULL)
	IUnknown_Release (props);

	return format;
	}
	#endif