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decklinkaudiosrc: Add property to select the audio input connection

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This commit is contained in:
Sebastian Dröge 2015-01-08 12:48:22 +01:00
parent 34de6ad73b
commit ed0d4cc653
2 changed files with 91 additions and 0 deletions
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90
sys/decklink/gstdecklinkaudiosrc.cpp
View file

@ -28,6 +28,7 @@
GST_DEBUG_CATEGORY_STATIC (gst_decklink_audio_src_debug);
#define GST_CAT_DEFAULT gst_decklink_audio_src_debug
#define DEFAULT_CONNECTION (GST_DECKLINK_AUDIO_CONNECTION_AUTO)
#define DEFAULT_BUFFER_SIZE (5)
#define DEFAULT_ALIGNMENT_THRESHOLD (40 * GST_MSECOND)
@ -36,6 +37,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_decklink_audio_src_debug);
enum
{
PROP_0,
PROP_CONNECTION,
PROP_DEVICE_NUMBER,
PROP_ALIGNMENT_THRESHOLD,
PROP_DISCONT_WAIT,
@ -136,6 +138,13 @@ gst_decklink_audio_src_class_init (GstDecklinkAudioSrcClass * klass)
pushsrc_class->create = GST_DEBUG_FUNCPTR (gst_decklink_audio_src_create);
g_object_class_install_property (gobject_class, PROP_CONNECTION,
g_param_spec_enum ("connection", "Connection",
"Audio input connection to use",
GST_TYPE_DECKLINK_AUDIO_CONNECTION, DEFAULT_CONNECTION,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
g_object_class_install_property (gobject_class, PROP_DEVICE_NUMBER,
g_param_spec_int ("device-number", "Device number",
"Output device instance to use", 0, G_MAXINT, 0,
@ -196,6 +205,10 @@ gst_decklink_audio_src_set_property (GObject * object, guint property_id,
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (object);
switch (property_id) {
case PROP_CONNECTION:
self->connection =
(GstDecklinkAudioConnectionEnum) g_value_get_enum (value);
break;
case PROP_DEVICE_NUMBER:
self->device_number = g_value_get_int (value);
break;
@ -221,6 +234,9 @@ gst_decklink_audio_src_get_property (GObject * object, guint property_id,
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (object);
switch (property_id) {
case PROP_CONNECTION:
g_value_set_enum (value, self->connection);
break;
case PROP_DEVICE_NUMBER:
g_value_set_int (value, self->device_number);
break;
@ -257,6 +273,7 @@ gst_decklink_audio_src_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
BMDAudioSampleType sample_depth;
GstCaps *current_caps;
HRESULT ret;
BMDAudioConnection conn = (BMDAudioConnection) - 1;
GST_DEBUG_OBJECT (self, "Setting caps %" GST_PTR_FORMAT, caps);
@ -282,6 +299,79 @@ gst_decklink_audio_src_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
sample_depth = bmdAudioSampleType32bitInteger;
}
switch (self->connection) {
case GST_DECKLINK_AUDIO_CONNECTION_AUTO:{
GstElement *videosrc = NULL;
GstDecklinkConnectionEnum vconn;
// Try to get the connection from the videosrc and try
// to select a sensible audio connection based on that
g_mutex_lock (&self->input->lock);
if (self->input->videosrc)
videosrc = GST_ELEMENT_CAST (gst_object_ref (self->input->videosrc));
g_mutex_unlock (&self->input->lock);
if (videosrc) {
g_object_get (videosrc, "connection", &vconn, NULL);
gst_object_unref (videosrc);
switch (vconn) {
case GST_DECKLINK_CONNECTION_SDI:
conn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_HDMI:
conn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_OPTICAL_SDI:
conn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_COMPONENT:
conn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_COMPOSITE:
conn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_SVIDEO:
conn = bmdAudioConnectionAnalog;
break;
default:
// Use default
break;
}
}
break;
}
case GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED:
conn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_AUDIO_CONNECTION_AES_EBU:
conn = bmdAudioConnectionAESEBU;
break;
case GST_DECKLINK_AUDIO_CONNECTION_ANALOG:
conn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_AUDIO_CONNECTION_ANALOG_XLR:
conn = bmdAudioConnectionAnalogXLR;
break;
case GST_DECKLINK_AUDIO_CONNECTION_ANALOG_RCA:
conn = bmdAudioConnectionAnalogRCA;
break;
default:
g_assert_not_reached ();
break;
}
if (conn != (BMDAudioConnection) - 1) {
ret =
self->input->config->SetInt (bmdDeckLinkConfigAudioInputConnection,
conn);
if (ret != S_OK) {
GST_ERROR ("set configuration (audio input connection)");
return FALSE;
}
}
ret = self->input->input->EnableAudioInput (bmdAudioSampleRate48kHz,
sample_depth, 2);
if (ret != S_OK) {

1
sys/decklink/gstdecklinkaudiosrc.h
View file

@ -50,6 +50,7 @@ struct _GstDecklinkAudioSrc
GstPushSrc parent;
GstDecklinkModeEnum mode;
GstDecklinkAudioConnectionEnum connection;
gint device_number;
GstAudioInfo info;