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pulsesink: Implement changing the device while playing

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=590768
This commit is contained in:
Olivier Crête 2013-08-18 22:27:37 -04:00
parent 691b04e5c9
commit 8f9fbfa992
1 changed files with 62 additions and 0 deletions
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62
ext/pulse/pulsesink.c
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@ -2817,6 +2817,67 @@ info_failed:
}
}
static void
gst_pulsesink_set_stream_device (GstPulseSink * psink, const gchar * device)
{
pa_operation *o = NULL;
GstPulseRingBuffer *pbuf;
uint32_t idx;
if (!mainloop)
goto no_mainloop;
pa_threaded_mainloop_lock (mainloop);
pbuf = GST_PULSERING_BUFFER_CAST (GST_AUDIO_BASE_SINK (psink)->ringbuffer);
if (pbuf == NULL || pbuf->stream == NULL)
goto no_buffer;
if ((idx = pa_stream_get_index (pbuf->stream)) == PA_INVALID_INDEX)
goto no_index;
GST_DEBUG_OBJECT (psink, "setting stream device to %s", device);
if (!(o = pa_context_move_sink_input_by_name (pbuf->context, idx, device,
NULL, NULL)))
goto move_failed;
unlock:
if (o)
pa_operation_unref (o);
pa_threaded_mainloop_unlock (mainloop);
return;
/* ERRORS */
no_mainloop:
{
GST_DEBUG_OBJECT (psink, "we have no mainloop");
return;
}
no_buffer:
{
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
goto unlock;
}
no_index:
{
GST_DEBUG_OBJECT (psink, "we don't have a stream index");
return;
}
move_failed:
{
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
("pa_context_move_sink_input_by_name(%s) failed: %s", device,
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
goto unlock;
}
}
static void
gst_pulsesink_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
@ -2831,6 +2892,7 @@ gst_pulsesink_set_property (GObject * object,
case PROP_DEVICE:
g_free (pulsesink->device);
pulsesink->device = g_value_dup_string (value);
gst_pulsesink_set_stream_device (pulsesink, pulsesink->device);
break;
case PROP_VOLUME:
gst_pulsesink_set_volume (pulsesink, g_value_get_double (value));