C++ (Cpp) gst_wasapi_util_get_default_device_client примеры использования

Пример #1

Файл: gstwasapisink.c Проект: bilboed/gst-plugins-bad

static gboolean
gst_wasapi_sink_start (GstBaseSink * sink)
{
  GstWasapiSink *self = GST_WASAPI_SINK (sink);
  gboolean res = FALSE;
  IAudioClient *client = NULL;
  HRESULT hr;
  IAudioRenderClient *render_client = NULL;

  if (!gst_wasapi_util_get_default_device_client (GST_ELEMENT (self),
          FALSE, self->rate, self->buffer_time, self->period_time,
          AUDCLNT_STREAMFLAGS_EVENTCALLBACK, &client, &self->latency))
    goto beach;

  hr = IAudioClient_SetEventHandle (client, self->event_handle);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::SetEventHandle () failed");
    goto beach;
  }

  hr = IAudioClient_GetService (client, &IID_IAudioRenderClient,
      &render_client);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::GetService "
        "(IID_IAudioRenderClient) failed");
    goto beach;
  }

  hr = IAudioClient_Start (client);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::Start failed");
    goto beach;
  }

  self->client = client;
  self->render_client = render_client;

  res = TRUE;

beach:
  if (!res) {
    if (render_client != NULL)
      IUnknown_Release (render_client);

    if (client != NULL)
      IUnknown_Release (client);
  }

  return res;
}

Пример #2

Файл: gstwasapisink.c Проект: ConfusedReality/pkg_multimedia_gst-plugins-bad

static gboolean
gst_wasapi_sink_open (GstAudioSink * asink)
{
  GstWasapiSink *self = GST_WASAPI_SINK (asink);
  gboolean res = FALSE;
  IAudioClient *client = NULL;

  if (!gst_wasapi_util_get_default_device_client (GST_ELEMENT (self), FALSE,
          &client)) {
    GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ, (NULL),
        ("Failed to get default device"));
    goto beach;
  }

  self->client = client;
  res = TRUE;

beach:

  return res;
}

Пример #3

Файл: gstwasapisrc.c Проект: collects/gst-plugins-bad

static gboolean
gst_wasapi_src_start (GstBaseSrc * src)
{
  GstWasapiSrc *self = GST_WASAPI_SRC (src);
  gboolean res = FALSE;
  IAudioClient *client = NULL;
  IAudioClock *client_clock = NULL;
  guint64 client_clock_freq = 0;
  IAudioCaptureClient *capture_client = NULL;
  HRESULT hr;

  if (!gst_wasapi_util_get_default_device_client (GST_ELEMENT (self),
          TRUE, self->rate, self->buffer_time, self->period_time, 0, &client,
          &self->latency))
    goto beach;

  hr = IAudioClient_GetService (client, &IID_IAudioClock, &client_clock);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::GetService (IID_IAudioClock) "
        "failed");
    goto beach;
  }

  hr = IAudioClock_GetFrequency (client_clock, &client_clock_freq);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClock::GetFrequency () failed");
    goto beach;
  }

  hr = IAudioClient_GetService (client, &IID_IAudioCaptureClient,
      &capture_client);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::GetService "
        "(IID_IAudioCaptureClient) failed");
    goto beach;
  }

  hr = IAudioClient_Start (client);
  if (hr != S_OK) {
    GST_ERROR_OBJECT (self, "IAudioClient::Start failed");
    goto beach;
  }

  self->client = client;
  self->client_clock = client_clock;
  self->client_clock_freq = client_clock_freq;
  self->capture_client = capture_client;

  res = TRUE;

beach:
  if (!res) {
    if (capture_client != NULL)
      IUnknown_Release (capture_client);

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

    if (client != NULL)
      IUnknown_Release (client);
  }

  return res;
}