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audiomixer: Avoid race in caps negotiation

Browse source 
With the current audiomixer, the input caps need to be the same,
otherwise there is an unavoidable race in the caps negotiation. So
enforce that using capsfilters

https://bugzilla.gnome.org/show_bug.cgi?id=742684
This commit is contained in:
Olivier Crête 2015-01-21 19:32:34 -05:00 committed by Thibault Saunier
parent 9afd2b3339
commit 402c0d4c5c
1 changed files with 33 additions and 20 deletions
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53
tests/check/elements/audiomixer.c
View file

@ -587,11 +587,12 @@ test_live_seeking_try_audiosrc (const gchar * factory_name)
/* test failing seeks on live-sources */
GST_START_TEST (test_live_seeking)
{
GstElement *bin, *src1 =
NULL, *src2, *ac1, *ac2, *q1, *q2, *audiomixer, *sink;
GstElement *bin, *src1 = NULL, *cf, *src2, *audiomixer, *sink;
GstCaps *caps;
GstBus *bus;
gboolean res;
GstPad *srcpad;
GstPad *sinkpad;
gint i;
GstStateChangeReturn state_res;
GstStreamConsistency *consist;
@ -624,32 +625,44 @@ GST_START_TEST (test_live_seeking)
g_object_set (src1, "num-buffers", 4, "blocksize", 44100, NULL);
}
ac1 = gst_element_factory_make ("audioconvert", "ac1");
q1 = gst_element_factory_make ("queue", "q1");
src2 = gst_element_factory_make ("audiotestsrc", "src2");
g_object_set (src2, "wave", 4, NULL); /* silence */
ac2 = gst_element_factory_make ("audioconvert", "ac2");
q2 = gst_element_factory_make ("queue", "q2");
audiomixer = gst_element_factory_make ("audiomixer", "audiomixer");
cf = gst_element_factory_make ("capsfilter", "capsfilter");
sink = gst_element_factory_make ("fakesink", "sink");
gst_bin_add_many (GST_BIN (bin), src1, ac1, q1, src2, ac2, q2, audiomixer,
sink, NULL);
res = gst_element_link (src1, ac1);
gst_bin_add_many (GST_BIN (bin), src1, cf, audiomixer, sink, NULL);
res = gst_element_link (src1, cf);
fail_unless (res == TRUE, NULL);
res = gst_element_link (ac1, q1);
fail_unless (res == TRUE, NULL);
res = gst_element_link (q1, audiomixer);
fail_unless (res == TRUE, NULL);
res = gst_element_link (src2, ac2);
fail_unless (res == TRUE, NULL);
res = gst_element_link (ac2, q2);
fail_unless (res == TRUE, NULL);
res = gst_element_link (q2, audiomixer);
res = gst_element_link (cf, audiomixer);
fail_unless (res == TRUE, NULL);
res = gst_element_link (audiomixer, sink);
fail_unless (res == TRUE, NULL);
gst_element_set_state (bin, GST_STATE_PLAYING);
/* wait for completion */
state_res =
gst_element_get_state (GST_ELEMENT (bin), NULL, NULL,
GST_CLOCK_TIME_NONE);
ck_assert_int_ne (state_res, GST_STATE_CHANGE_FAILURE);
sinkpad = gst_element_get_static_pad (sink, "sink");
fail_unless (sinkpad != NULL);
caps = gst_pad_get_current_caps (sinkpad);
fail_unless (caps != NULL);
gst_object_unref (sinkpad);
gst_element_set_state (bin, GST_STATE_NULL);
g_object_set (cf, "caps", caps, NULL);
src2 = gst_element_factory_make ("audiotestsrc", "src2");
g_object_set (src2, "wave", 4, NULL); /* silence */
gst_bin_add (GST_BIN (bin), src2);
res = gst_element_link_filtered (src2, audiomixer, caps);
fail_unless (res == TRUE, NULL);
gst_caps_unref (caps);
play_seek_event = gst_event_new_seek (1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, (GstClockTime) 0,