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audiointerleave: Take object lock while modifying channel count

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This commit is contained in:
Olivier Crête 2017-05-20 17:47:04 +02:00
parent 8a302f1815
commit 7b2e201bfa
2 changed files with 11 additions and 4 deletions
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13
gst/audiomixer/gstaudiointerleave.c
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@ -513,8 +513,11 @@ gst_audio_interleave_update_src_caps (GstAggregator * agg, GstCaps * caps,
/* This means that either no caps have been set on the sink pad (if
* sinkcaps is NULL) or that there is no sink pad (if channels == 0).
*/
if (self->sinkcaps == NULL || self->channels == 0)
GST_OBJECT_LOCK (self);
if (self->sinkcaps == NULL || self->channels == 0) {
GST_OBJECT_UNLOCK (self);
return GST_FLOW_NOT_NEGOTIATED;
}
*ret = gst_caps_copy (self->sinkcaps);
s = gst_caps_get_structure (*ret, 0);
@ -523,6 +526,8 @@ gst_audio_interleave_update_src_caps (GstAggregator * agg, GstCaps * caps,
G_TYPE_STRING, "interleaved", "channel-mask", GST_TYPE_BITMASK,
gst_audio_interleave_get_channel_mask (self), NULL);
GST_OBJECT_UNLOCK (self);
return GST_FLOW_OK;
}
@ -726,10 +731,12 @@ gst_audio_interleave_request_new_pad (GstElement * element,
/* FIXME: We ignore req_name, this is evil! */
GST_OBJECT_LOCK (self);
padnumber = g_atomic_int_add (&self->padcounter, 1);
channel = g_atomic_int_add (&self->channels, 1);
channel = self->channels++;
if (!self->channel_positions_from_input)
channel = padnumber;
GST_OBJECT_UNLOCK (self);
pad_name = g_strdup_printf ("sink_%u", padnumber);
newpad = (GstAudioInterleavePad *)
@ -776,7 +783,7 @@ gst_audio_interleave_release_pad (GstElement * element, GstPad * pad)
/* Take lock to make sure we're not changing this when processing buffers */
GST_OBJECT_LOCK (self);
g_atomic_int_add (&self->channels, -1);
self->channels--;
position = GST_AUDIO_INTERLEAVE_PAD (pad)->channel;
g_value_array_remove (self->input_channel_positions, position);

2
gst/audiomixer/gstaudiointerleave.h
View file

@ -56,7 +56,7 @@ struct _GstAudioInterleave {
GstAudioAggregator parent;
gint padcounter;
guint channels;
guint channels; /* object lock */
GstCaps *sinkcaps;