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rtpmux: handle different ssrc's on sinkpads

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Do this by not putting the ssrc from the src pads in the caps used to
probe other sinkpads, and then  intersecting with it later.

https://bugzilla.gnome.org/show_bug.cgi?id=752491
This commit is contained in:
Havard Graff 2015-07-16 15:12:17 +02:00 committed by Olivier Crête
parent 2e3a5ba227
commit 764bbf99a8
2 changed files with 67 additions and 10 deletions
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21
gst/rtpmanager/gstrtpmux.c
View file

@ -602,7 +602,6 @@ same_clock_rate_fold (const GValue * item, GValue * ret, gpointer user_data)
GstPad *pad = g_value_get_object (item);
GstCaps *peercaps;
GstCaps *accumcaps;
GstCaps *intersect;
if (pad == mypad)
return TRUE;
@ -616,12 +615,9 @@ same_clock_rate_fold (const GValue * item, GValue * ret, gpointer user_data)
peercaps = gst_caps_make_writable (peercaps);
clear_caps (peercaps, TRUE);
intersect = gst_caps_intersect (accumcaps, peercaps);
g_value_take_boxed (ret, peercaps);
g_value_take_boxed (ret, intersect);
gst_caps_unref (peercaps);
return !gst_caps_is_empty (intersect);
return !gst_caps_is_empty (peercaps);
}
static GstCaps *
@ -634,6 +630,7 @@ gst_rtp_mux_getcaps (GstPad * pad, GstRTPMux * mux, GstCaps * filter)
GstCaps *peercaps;
GstCaps *othercaps;
GstCaps *tcaps;
GstCaps *other_filtered;
peercaps = gst_pad_peer_query_caps (mux->srcpad, filter);
@ -654,24 +651,30 @@ gst_rtp_mux_getcaps (GstPad * pad, GstRTPMux * mux, GstCaps * filter)
clear_caps (othercaps, FALSE);
other_filtered = gst_caps_copy (othercaps);
clear_caps (other_filtered, TRUE);
g_value_init (&v, GST_TYPE_CAPS);
iter = gst_element_iterate_sink_pads (GST_ELEMENT (mux));
do {
gst_value_set_caps (&v, othercaps);
gst_value_set_caps (&v, other_filtered);
res = gst_iterator_fold (iter, same_clock_rate_fold, &v, pad);
gst_iterator_resync (iter);
} while (res == GST_ITERATOR_RESYNC);
gst_iterator_free (iter);
gst_caps_unref (other_filtered);
caps = (GstCaps *) gst_value_get_caps (&v);
caps = gst_caps_intersect ((GstCaps *) gst_value_get_caps (&v), othercaps);
g_value_unset (&v);
gst_caps_unref (othercaps);
if (res == GST_ITERATOR_ERROR) {
gst_caps_unref (caps);
caps = gst_caps_new_empty ();
}
gst_caps_unref (othercaps);
return caps;
}

56
tests/check/elements/rtpmux.c
View file

@ -23,6 +23,7 @@
*/
#include <gst/check/gstcheck.h>
#include <gst/check/gstharness.h>
#include <gst/rtp/gstrtpbuffer.h>
#include <gst/gst.h>
@ -296,6 +297,58 @@ GST_START_TEST (test_rtpdtmfmux_lock)
GST_END_TEST;
static GstBuffer *
generate_test_buffer (guint seq_num, guint ssrc)
{
GstBuffer *buf;
guint8 *payload;
guint i;
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
gsize size = 10;
buf = gst_rtp_buffer_new_allocate (size, 0, 0);
GST_BUFFER_DTS (buf) = GST_MSECOND * 20 * seq_num;
GST_BUFFER_PTS (buf) = GST_MSECOND * 20 * seq_num;
gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
gst_rtp_buffer_set_payload_type (&rtp, 0);
gst_rtp_buffer_set_seq (&rtp, seq_num);
gst_rtp_buffer_set_timestamp (&rtp, 160 * seq_num);
gst_rtp_buffer_set_ssrc (&rtp, ssrc);
payload = gst_rtp_buffer_get_payload (&rtp);
for (i = 0; i < size; i++)
payload[i] = 0xff;
gst_rtp_buffer_unmap (&rtp);
return buf;
}
GST_START_TEST (test_rtpmux_ssrc)
{
GstHarness * h = gst_harness_new_with_padnames ("rtpdtmfmux", NULL, "src");
GstHarness * h0 = gst_harness_new_with_element (
h->element, "sink_0", NULL);
GstHarness * h1 = gst_harness_new_with_element (
h->element, "sink_1", NULL);
g_object_set (h->element, "ssrc", 111111, NULL);
gst_harness_set_src_caps_str (h0, "application/x-rtp, ssrc=(uint)222222");
gst_harness_set_src_caps_str (h1, "application/x-rtp, ssrc=(uint)333333");
fail_unless_equals_int (GST_FLOW_OK,
gst_harness_push (h0, generate_test_buffer (0, 222222)));
fail_unless_equals_int (GST_FLOW_OK,
gst_harness_push (h1, generate_test_buffer (0, 333333)));
gst_harness_teardown (h0);
gst_harness_teardown (h1);
gst_harness_teardown (h);
}
GST_END_TEST;
static Suite *
rtpmux_suite (void)
{
@ -303,8 +356,9 @@ rtpmux_suite (void)
TCase *tc_chain;
tc_chain = tcase_create ("rtpmux_basic");
tcase_add_test (tc_chain, test_rtpmux_basic);
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_rtpmux_basic);
tcase_add_test (tc_chain, test_rtpmux_ssrc);
tc_chain = tcase_create ("rtpdtmfmux_basic");
tcase_add_test (tc_chain, test_rtpdtmfmux_basic);