line21enc: fix remove-caption-meta property test

It's possible for the same address to be allocated to the decoded
metadata. Switch test to actual detect if it was removed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2159>

1 files changed, 43 insertions, 4 deletions

diff --git a/tests/check/elements/line21.c b/tests/check/elements/line21.c
index fa9427b55..b4be999ab 100644
--- a/tests/check/elements/line21.c
+++ b/tests/check/elements/line21.c
@@ -31,7 +31,7 @@ GST_START_TEST (basic)
   GstHarness *h;
   GstBuffer *buf, *outbuf;
   GstVideoInfo info;
-  GstVideoCaptionMeta *in_cc_meta, *out_cc_meta;
+  GstVideoCaptionMeta *out_cc_meta;
   guint i;
   guint8 empty_data[] = { 0x8c, 0x80, 0x80, 0x0, 0x80, 0x80 };
   guint8 full_data[] = { 0x8c, 0x42, 0x43, 0x0, 0x44, 0x45 };
@@ -58,7 +58,6 @@ GST_START_TEST (basic)
           GST_VIDEO_CAPTION_META_API_TYPE), 1);
 
   out_cc_meta = gst_buffer_get_video_caption_meta (outbuf);
-
   fail_unless (out_cc_meta != NULL);
   fail_unless (out_cc_meta->size == 6);
 
@@ -70,7 +69,7 @@ GST_START_TEST (basic)
   buf = gst_buffer_new_and_alloc (info.size);
   gst_buffer_add_video_caption_meta (buf, GST_VIDEO_CAPTION_TYPE_CEA608_S334_1A,
       full_data, 6);
-  in_cc_meta = gst_buffer_get_video_caption_meta (buf);
+
   outbuf = gst_harness_push_and_pull (h, buf);
 
   fail_unless (outbuf != NULL);
@@ -78,7 +77,7 @@ GST_START_TEST (basic)
           GST_VIDEO_CAPTION_META_API_TYPE), 1);
 
   out_cc_meta = gst_buffer_get_video_caption_meta (outbuf);
-  fail_unless (in_cc_meta != out_cc_meta);
+  fail_unless (out_cc_meta != NULL);
 
   for (i = 0; i < out_cc_meta->size; i++)
     fail_unless (out_cc_meta->data[i] == full_data[i]);
@@ -89,6 +88,45 @@ GST_START_TEST (basic)
 
 GST_END_TEST;
 
+GST_START_TEST (remove_caption_meta)
+{
+  GstHarness *h;
+  GstBuffer *buf, *outbuf;
+  GstVideoInfo info;
+  GstVideoCaptionMeta *out_cc_meta;
+  guint8 full_data[] = { 0x8c, 0x42, 0x43, 0x0, 0x44, 0x45 };
+  GstCaps *caps = gst_caps_new_simple ("video/x-raw",
+      "format", G_TYPE_STRING, "I420",
+      "width", G_TYPE_INT, 720,
+      "height", G_TYPE_INT, 525,
+      "interlace-mode", G_TYPE_STRING, "interleaved",
+      NULL);
+
+  h = gst_harness_new_parse ("line21encoder remove-caption-meta=true");
+  gst_harness_set_caps (h, gst_caps_ref (caps), gst_caps_ref (caps));
+
+  gst_video_info_from_caps (&info, caps);
+
+  gst_caps_unref (caps);
+
+  buf = gst_buffer_new_and_alloc (info.size);
+  gst_buffer_add_video_caption_meta (buf, GST_VIDEO_CAPTION_TYPE_CEA608_S334_1A,
+      full_data, 6);
+
+  outbuf = gst_harness_push_and_pull (h, buf);
+  fail_unless (outbuf != NULL);
+  fail_unless_equals_int (gst_buffer_get_n_meta (outbuf,
+          GST_VIDEO_CAPTION_META_API_TYPE), 0);
+
+  out_cc_meta = gst_buffer_get_video_caption_meta (outbuf);
+  fail_unless (out_cc_meta == NULL);
+
+  gst_buffer_unref (outbuf);
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
 static Suite *
 line21_suite (void)
 {
@@ -98,6 +136,7 @@ line21_suite (void)
   suite_add_tcase (s, tc);
 
   tcase_add_test (tc, basic);
+  tcase_add_test (tc, remove_caption_meta);
 
   return s;
 }