gstreamer/sys/wasapi/gstwasapiutil.c
2013-04-23 18:57:04 +02:00

302 lines
8.4 KiB
C

/*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#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, IAudioClient ** ret_client)
{
gboolean res = FALSE;
HRESULT hr;
IMMDeviceEnumerator *enumerator = NULL;
IMMDevice *device = NULL;
IAudioClient *client = NULL;
hr = CoCreateInstance (&CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
&IID_IMMDeviceEnumerator, (void **) &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,
(void **) &client);
if (hr != S_OK) {
GST_ERROR_OBJECT (element, "IMMDevice::Activate (IID_IAudioClient) failed");
goto beach;
}
IUnknown_AddRef (client);
*ret_client = client;
res = TRUE;
beach:
if (client != NULL)
IUnknown_Release (client);
if (device != NULL)
IUnknown_Release (device);
if (enumerator != NULL)
IUnknown_Release (enumerator);
return res;
}
gboolean
gst_wasapi_util_get_render_client (GstElement * element, IAudioClient * client,
IAudioRenderClient ** ret_render_client)
{
gboolean res = FALSE;
HRESULT hr;
IAudioRenderClient *render_client = NULL;
hr = IAudioClient_GetService (client, &IID_IAudioRenderClient,
(void **) &render_client);
if (hr != S_OK) {
GST_ERROR_OBJECT (element, "IAudioClient::GetService "
"(IID_IAudioRenderClient) failed");
goto beach;
}
*ret_render_client = render_client;
beach:
return res;
}
gboolean
gst_wasapi_util_get_capture_client (GstElement * element, IAudioClient * client,
IAudioCaptureClient ** ret_capture_client)
{
gboolean res = FALSE;
HRESULT hr;
IAudioCaptureClient *capture_client = NULL;
hr = IAudioClient_GetService (client, &IID_IAudioCaptureClient,
(void **) &capture_client);
if (hr != S_OK) {
GST_ERROR_OBJECT (element, "IAudioClient::GetService "
"(IID_IAudioCaptureClient) failed");
goto beach;
}
*ret_capture_client = capture_client;
beach:
return res;
}
gboolean
gst_wasapi_util_get_clock (GstElement * element, IAudioClient * client,
IAudioClock ** ret_clock)
{
gboolean res = FALSE;
HRESULT hr;
IAudioClock *clock = NULL;
hr = IAudioClient_GetService (client, &IID_IAudioClock,
(void **) &clock);
if (hr != S_OK) {
GST_ERROR_OBJECT (element, "IAudioClient::GetService "
"(IID_IAudioClock) failed");
goto beach;
}
*ret_clock = clock;
beach:
return res;
}
void
gst_wasapi_util_audio_info_to_waveformatex (GstAudioInfo * info,
WAVEFORMATEXTENSIBLE * format)
{
memset (format, 0, sizeof (*format));
format->Format.cbSize = sizeof (*format) - sizeof (format->Format);
format->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
format->Format.nChannels = info->channels;
format->Format.nSamplesPerSec = info->rate;
format->Format.wBitsPerSample = (info->bpf * 8) / format->Format.nChannels;
format->Format.nBlockAlign = info->bpf;
format->Format.nAvgBytesPerSec =
format->Format.nSamplesPerSec * format->Format.nBlockAlign;
format->Samples.wValidBitsPerSample = info->finfo->depth;
/* FIXME: Implement something here */
format->dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
format->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}
#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