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videorate: Add test that reproduces infinite loop

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/761>
This commit is contained in:
Olivier Crête 2020-07-15 22:54:55 -04:00 committed by Olivier Crête
parent 2de70ed7c5
commit 323554a31a
1 changed files with 77 additions and 0 deletions
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77
tests/check/elements/videorate.c
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@ -1536,6 +1536,82 @@ GST_START_TEST (test_query_position)
GST_END_TEST;
/* frames at 1, 0, 2 -> second one should be ignored */
GST_START_TEST (test_nopts_in_middle)
{
GstElement *videorate;
GstBuffer *first, *second, *third;
GstCaps *caps;
videorate =
setup_videorate_full (&srctemplate, &force_variable_rate_template);
fail_unless (gst_element_set_state (videorate,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
/* first buffer */
first = gst_buffer_new_and_alloc (4);
GST_BUFFER_TIMESTAMP (first) = GST_SECOND;
gst_buffer_memset (first, 0, 0, 4);
caps = gst_caps_from_string (VIDEO_CAPS_STRING);
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
gst_check_setup_events (mysrcpad, videorate, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (first, "first", 1);
gst_buffer_ref (first);
GST_DEBUG ("pushing first buffer");
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, first) == GST_FLOW_OK);
/* ... and a copy is now stuck inside videorate */
ASSERT_BUFFER_REFCOUNT (first, "first", 1);
fail_unless_equals_int (g_list_length (buffers), 0);
assert_videorate_stats (videorate, "second", 1, 0, 0, 0);
/* second buffer */
second = gst_buffer_new_and_alloc (4);
gst_buffer_memset (second, 0, 0, 4);
ASSERT_BUFFER_REFCOUNT (second, "second", 1);
gst_buffer_ref (second);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, second) == GST_FLOW_OK);
/* ... and the first one should have been pushed out */
ASSERT_BUFFER_REFCOUNT (second, "second", 1);
fail_unless_equals_int (g_list_length (buffers), 1);
/* ... and the first one was replaced */
assert_videorate_stats (videorate, "second", 2, 1, 0, 0);
ASSERT_BUFFER_REFCOUNT (first, "first", 1);
/* third buffer */
third = gst_buffer_new_and_alloc (4);
GST_BUFFER_TIMESTAMP (third) = 2 * GST_SECOND;
gst_buffer_memset (third, 0, 0, 4);
ASSERT_BUFFER_REFCOUNT (third, "third", 1);
gst_buffer_ref (third);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, third) == GST_FLOW_OK);
/* ... and a copy is now stuck inside videorate */
ASSERT_BUFFER_REFCOUNT (third, "third", 1);
/* and now it should have pushed out the second one */
fail_unless_equals_int (g_list_length (buffers), 1);
ASSERT_BUFFER_REFCOUNT (first, "first", 1);
ASSERT_BUFFER_REFCOUNT (second, "second", 1);
ASSERT_BUFFER_REFCOUNT (third, "third", 1);
assert_videorate_stats (videorate, "third", 3, 2, 0, 0);
/* cleanup */
gst_buffer_unref (first);
gst_buffer_unref (second);
cleanup_videorate (videorate);
}
GST_END_TEST;
static Suite *
videorate_suite (void)
{
@ -1561,6 +1637,7 @@ videorate_suite (void)
tcase_add_test (tc_chain, test_max_duplication_time);
tcase_add_loop_test (tc_chain, test_query_position, 0,
G_N_ELEMENTS (position_tests));
tcase_add_test (tc_chain, test_nopts_in_middle);
return s;
}