C++ (Cpp) gst_audio_panorama_set_process_functionの例

コード例 #1

ファイル: audiopanorama.c プロジェクト: lubing521/gst-embedded-builder

static gboolean
gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
    GstCaps * outcaps)
{
  GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
  GstAudioInfo info;

  /*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
  if (!gst_audio_info_from_caps (&info, incaps))
    goto no_format;

  GST_DEBUG ("try to process %d input with %d channels",
      GST_AUDIO_INFO_FORMAT (&info), GST_AUDIO_INFO_CHANNELS (&info));

  if (!gst_audio_panorama_set_process_function (filter, &info))
    goto no_format;

  filter->info = info;

  return TRUE;

no_format:
  {
    GST_DEBUG ("invalid caps");
    return FALSE;
  }
}

コード例 #2

ファイル: audiopanorama.c プロジェクト: JJCG/gst-plugins-good

static gboolean
gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
    GstCaps * outcaps)
{
  GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
  const GstStructure *structure;
  gboolean ret;
  gint width;
  const gchar *fmt;

  /*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */

  structure = gst_caps_get_structure (incaps, 0);
  ret = gst_structure_get_int (structure, "channels", &filter->channels);
  if (!ret)
    goto no_channels;

  ret = gst_structure_get_int (structure, "width", &width);
  if (!ret)
    goto no_width;
  filter->width = width / 8;

  fmt = gst_structure_get_name (structure);
  if (!strcmp (fmt, "audio/x-raw-int"))
    filter->format_float = FALSE;
  else
    filter->format_float = TRUE;

  GST_DEBUG ("try to process %s input with %d channels", fmt, filter->channels);

  ret = gst_audio_panorama_set_process_function (filter);

  if (!ret)
    GST_WARNING ("can't process input with %d channels", filter->channels);

  return ret;

no_channels:
  GST_DEBUG ("no channels in caps");
  return ret;
no_width:
  GST_DEBUG ("no width in caps");
  return ret;
}

コード例 #3

ファイル: audiopanorama.c プロジェクト: lubing521/gst-embedded-builder

static void
gst_audio_panorama_set_property (GObject * object, guint prop_id,
    const GValue * value, GParamSpec * pspec)
{
  GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);

  switch (prop_id) {
    case PROP_PANORAMA:
      filter->panorama = g_value_get_float (value);
      break;
    case PROP_METHOD:
      filter->method = g_value_get_enum (value);
      gst_audio_panorama_set_process_function (filter, &filter->info);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
}