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ccconverter: fail negotiation when framerate conversion is not possible

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Converting between anything but cdp will fail at converting
framerates and negotiation should reflect that.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1393>
This commit is contained in:
Matthew Waters 2020-07-01 20:28:01 +10:00 committed by GStreamer Merge Bot
parent 4f334234c8
commit c6c4d42c4a
2 changed files with 85 additions and 3 deletions
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33
ext/closedcaption/gstccconverter.c
View file

@ -111,7 +111,16 @@ gst_cc_converter_transform_caps (GstBaseTransform * base,
* We can convert everything to CEA608.
*/
res = gst_caps_merge (res, gst_static_caps_get (&cdp_caps_framerate));
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
if (framerate) {
/* we can only keep the same framerate for non-cdp */
GstCaps *tmp;
tmp = gst_caps_make_writable (gst_static_caps_get (&non_cdp_caps));
gst_caps_set_value (tmp, "framerate", framerate);
res = gst_caps_merge (res, tmp);
} else {
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
}
} else {
/* SINK: We produce downstream caps
*
@ -211,7 +220,16 @@ gst_cc_converter_transform_caps (GstBaseTransform * base,
} else {
/* Downstream wants not only CDP, we can do everything */
res = gst_caps_merge (res, gst_static_caps_get (&cdp_caps_framerate));
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
if (framerate) {
/* we can only keep the same framerate for non-cdp */
GstCaps *tmp;
tmp = gst_caps_make_writable (gst_static_caps_get (&non_cdp_caps));
gst_caps_set_value (tmp, "framerate", framerate);
res = gst_caps_merge (res, tmp);
} else {
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
}
}
} else {
GstCaps *tmp;
@ -254,7 +272,16 @@ gst_cc_converter_transform_caps (GstBaseTransform * base,
res = gst_caps_merge (res, tmp);
}
/* We can always convert CEA708 to all non-CDP formats */
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
if (framerate) {
/* we can only keep the same framerate for non-cdp */
GstCaps *tmp;
tmp = gst_caps_make_writable (gst_static_caps_get (&non_cdp_caps));
gst_caps_set_value (tmp, "framerate", framerate);
res = gst_caps_merge (res, tmp);
} else {
res = gst_caps_merge (res, gst_static_caps_get (&non_cdp_caps));
}
}
} else {
g_assert_not_reached ();

55
tests/check/elements/ccconverter.c
View file

@ -195,6 +195,60 @@ GST_START_TEST (framerate_changes)
GST_END_TEST;
GST_START_TEST (framerate_invalid_format)
{
GstHarness *h;
GstBuffer *buffer;
GstMapInfo map;
guint i, j;
const gchar *failure_caps[] = {
/* all of these combinations should fail with different framerates */
"closedcaption/x-cea-608,format=(string)raw",
"closedcaption/x-cea-608,format=(string)s334-1a",
"closedcaption/x-cea-708,format=(string)cc_data",
};
h = gst_harness_new ("ccconverter");
buffer = gst_buffer_new_and_alloc (3);
gst_buffer_map (buffer, &map, GST_MAP_WRITE);
map.data[0] = 0x00;
map.data[1] = 0x80;
map.data[2] = 0x80;
gst_buffer_unmap (buffer, &map);
/* framerate conversion failure cases */
for (i = 0; i < G_N_ELEMENTS (failure_caps); i++) {
for (j = 0; j < G_N_ELEMENTS (failure_caps); j++) {
gchar *srccaps, *sinkcaps;
srccaps =
g_strdup_printf ("%s%s", failure_caps[i],
",framerate=(fraction)30/1");
sinkcaps =
g_strdup_printf ("%s%s", failure_caps[i],
",framerate=(fraction)60/1");
GST_INFO ("attempting conversion from %s", srccaps);
GST_INFO (" to %s", sinkcaps);
gst_harness_set_src_caps_str (h, srccaps);
gst_harness_set_sink_caps_str (h, sinkcaps);
fail_unless_equals_int (gst_harness_push (h, gst_buffer_ref (buffer)),
GST_FLOW_NOT_NEGOTIATED);
g_free (srccaps);
g_free (sinkcaps);
}
}
gst_buffer_unref (buffer);
gst_harness_teardown (h);
}
GST_END_TEST;
static void
check_conversion_multiple (guint n_in, const guint8 ** in, guint * in_len,
guint n_out, const guint8 ** out, guint * out_len, const gchar * in_caps,
@ -903,6 +957,7 @@ ccextractor_suite (void)
tcase_add_test (tc, cdp_requires_framerate);
tcase_add_test (tc, framerate_passthrough);
tcase_add_test (tc, framerate_changes);
tcase_add_test (tc, framerate_invalid_format);
tcase_add_test (tc, convert_cea608_raw_cea608_s334_1a);
tcase_add_test (tc, convert_cea608_raw_cea708_cc_data);
tcase_add_test (tc, convert_cea608_raw_cea708_cdp);