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tests: mpegtsmux: add test for keyframe/delta flag propagation

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The first output MPEG-TS packet that corresponds to a video input
buffer which had the delta flag cleared (i.e. was a keyframe)
should have the delta flag cleared as well.

This is needed e.g. by tcpserversink in order to keep track
of the last keyframe and be able to burst data to newly-
connected clients.

https://bugzilla.gnome.org/show_bug.cgi?id=706872
This commit is contained in:
Tim-Philipp Müller 2015-03-15 15:54:01 +00:00
parent e9fb5509ac
commit ec6e93d45f
1 changed files with 43 additions and 3 deletions
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46
tests/check/elements/mpegtsmux.c
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@ -54,6 +54,8 @@ static GstPad *mysrcpad, *mysinkpad;
"alignment = (string) nal, " \
"parsed = (boolean) true "
#define KEYFRAME_DISTANCE 10
typedef void (CheckOutputBuffersFunc) (GList * buffers);
/* setup and teardown needs some special handling for muxer */
@ -184,6 +186,14 @@ check_tsmux_pad (GstStaticPadTemplate * srctemplate,
GST_BUFFER_TIMESTAMP (inbuffer) = ts;
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
if (i % KEYFRAME_DISTANCE == 0 && pes_id == 0xe0) {
GST_TRACE ("input keyframe");
GST_BUFFER_FLAG_UNSET (inbuffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_TRACE ("input delta");
GST_BUFFER_FLAG_SET (inbuffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
flow = gst_pad_push (mysrcpad, inbuffer);
if (flow != GST_FLOW_OK)
fail ("Got %s flow instead of OK", gst_flow_get_name (flow));
@ -224,12 +234,12 @@ check_tsmux_pad (GstStaticPadTemplate * srctemplate,
y = GST_READ_UINT16_BE (data);
pid = y & (0x1FFF);
data += 2;
GST_DEBUG ("pid: %d", pid);
GST_TRACE ("pid: %d", pid);
y = (y >> 14) & 0x1;
/* only check packets with payload_start_indicator == 1 */
if (!y) {
GST_DEBUG ("not at start");
GST_TRACE ("not at start");
continue;
}
@ -241,7 +251,7 @@ check_tsmux_pad (GstStaticPadTemplate * srctemplate,
y = *data;
data++;
data += y;
GST_DEBUG ("adaptation %d", y);
GST_TRACE ("adaptation %d", y);
}
if (pid == 0) {
@ -764,6 +774,35 @@ GST_START_TEST (test_align)
GST_END_TEST;
static void
test_keyframe_propagation_check_output (GList * bufs)
{
guint keyframe_count = 0;
GST_LOG ("%u buffers", g_list_length (bufs));
while (bufs != NULL) {
GstBuffer *buf = bufs->data;
gboolean keyunit;
keyunit = !GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
if (keyunit)
++keyframe_count;
GST_LOG ("buffer, keyframe=%d", keyunit);
bufs = bufs->next;
}
fail_unless_equals_int (keyframe_count, 50 / KEYFRAME_DISTANCE);
}
GST_START_TEST (test_keyframe_flag_propagation)
{
check_tsmux_pad (&video_src_template, VIDEO_CAPS_STRING, 0xE0, 0x1b,
"sink_%d", test_keyframe_propagation_check_output, 50, -1, 0);
}
GST_END_TEST;
static Suite *
mpegtsmux_suite (void)
{
@ -779,6 +818,7 @@ mpegtsmux_suite (void)
tcase_add_test (tc_chain, test_propagate_flow_status);
tcase_add_test (tc_chain, test_multiple_state_change);
tcase_add_test (tc_chain, test_align);
tcase_add_test (tc_chain, test_keyframe_flag_propagation);
return s;
}